VBScript Features

The sevrer side VBScripte is charactered by some typical features.

Variable

A VBScript variable is a word used as a placeholder reprsentation that refers to a specific memory location at which specific data or information which may be changed during store running are stored. Both the physical location and method of memory storage are managed by the computer system. The word is also called the name of a variable.

Variable Declaration

A variable can be declared implicitly by simply using the variable name in the VBScript. However, this is generally not a good practice because the specified variable name may be misspelled or has been used in the other part of script and cause unexpected results when running the script.

An Option Explicit statement is designed to prevent the human error when declaring a variable implicitly. By specifying the Option Explicit statement, which must be the first statement in the script, all variables require explicit declaration before these variable can be used in the VBScript.

The declaration of variables in VBScript explicitly can be done by declaring variable names with declaration statements before using, for example, using Dim statement, Public statement, and Private statement. Multiple variables can also be declared in one declaration statement by separating each variable name with a comma.

Examples

Examples Of Variable Declaration

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("b"):ucnt=UBound(cmda):call heading
vars="On Error Resume Next:Err.Raise 1:b=Err.Description:Err.Clear":Execute vars:dsp_x
vars="On Error Resume Next:a=4:Dim b:b=Err.Description":Execute vars:dsp_x
vars="Option Explicit:On Error Resume Next:c=4:Dim b:b=Err.Description:Err.Clear":Execute vars:dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Variable Name

There are some rules on naming a variable.

A varaible name must be unique within the scope in which being declared.
The name of a variable must begin with an alphabet and contain no period (.) and space ( ). And a variable name cannot begin with a number or underscore.
A VBScript variable name cannot exceed 255 characters in length, but, a variable name with more than 20 character may become pretty unreadable.
In general. a variable name is a string of continuous characters with no intervening space which must be composed only letters, number, and underscore character to form a readable variable name. And a variable name usually cannot have a period (.) or punctuation characters or special characters (such as ! @ # $ % ^ & * ( ) + - = [ ] { } ; ' : " , . / < > ? \ | ` ~).
VBScript variable names are not case-sensitive.
Besides reserved words or some keywords cannot be used as a variable name.
Howver, variable name enclosed in brackets ([…]) may override some rules.

Examples

Examples of Variable Name

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("b"):ucnt=UBound(cmda):call heading
vars="texta=""d"":b=TEXTA":dsp_x
vars="text_a=""e"":b=TEXT_A":dsp_x
vars="text_addddddddddddddddd=""x"":b=text_addddddddddddddddd":dsp_x
vars="[text a.b/*?]=""u"":b=[TEXT A.B/*?]":dsp_x
vars="[Empty]=""w"":b=[Empty]":dsp_x
vars="[Set]=""y"":b=[Set]":dsp_x
vars="On Error Resume Next:text a=""u"":b=Err.Description:Err.Clear":dsp_x
vars="On Error Resume Next:Array=""u"":b=Err.Description:Err.Clear":dsp_x
vars="On Error Resume Next:text a=""u"":b=Err.Description:Err.Clear":dsp_x
vars="On Error Resume Next:[Ar ray]=""u"":b=Err.Description:Err.Clear":dsp_x
vars="On Error Resume Next:[Array]=""u"":b=Err.Description:Err.Clear":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Scope and Lifetime of a Variable

Both the scope and lifetime of a variable is determined by where the variable is declared. When a variable is declared within a procedure, and the variable can only be accessed and manipulated by the code of the corresponding procedure, then the variable is a procedure-level variable that has only a local procedure-level scope. When a vriable is declared outside a precedure and the variable is made recognizable to all the procedures inside the script, then the variable is a script-level variable that has a script-level scope. Therefore, local variables of the same name can be declared in several different procedures, because each variable can only be recognized by the corresponding procedure in which the variable is declared.

The lifetime of a variable depends on how long the hosting code of the corresponding variable can exists. For a procedure-level variable, the variable is always available after declaration as long as the procedure is running. However, when the procedure exits, the variable is destroyed also. Similarly, a script-level variable is always available after declaration as long as the script is running, and a script-level variable will be destroyed when the script is finished running.

Examples

Examples Of scope And lifetime Of a variable

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("a","e"):ucnt=UBound(cmda):call heading
vars="a=1:Function txt1:Dim e:e=""txt"":a=e:End Function":dsp_x
vars="a=1:Function txt1:Dim e:e=""txt"":a=e:End Function:txt1":dsp_x
vars="a=1:e=2:Function txt1:Dim e:e=""txt"":a=e:End Function:txt1":dsp_x
vars="a=5:e=2:Function txt1:Dim e:e=a*5:a=e:End Function:txt1":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Variable Assignment

A value can be assigned to a variable by making use of an assignment statement. In general, there are two types of values. One is data value, and the other is object value. A data value assignment statement use an assigning equal to operation (=) to assign a data value to a variable,. While an object value assignment statement use a set an reference to operation (Set) to assign an object value to a variable.

Examples

Examples Of variable assignment

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("a"):ucnt=UBound(cmda):call heading
vars="a=1":dsp_x
vars="Set a=GetObject("""",""htmlfile"")":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Array Variable

A variable containing a single reference value is called a scalar variable. A variable that can be used to contain more than one reference value in form of an ordered series is called an array variable. Each item value of an array variable is refered to a specific fixed index of the array variable.

An array variable with one single index is called one dimension array. For VBScript, all array variables are zero-base array. The index number of array elements always begins at zero. An array variable can be multiple dimensions with more than one index. The number of dimensions is equal to the number of indexes used to identify an element of an array variable. The maximum dimensions of a VBScript array variable is 60 dimensions.

Each array element is identified by adding the index numeber of the corresponding element inside a pair of parentheses (…) after the variable name. The declaration, name, scope and lifetime, and assignment of an array variable are similar to a scalar variable. For the declaration of a fixed-size array of single dimension, the maximum index number, m, is specified inside a pair of parentheses, (m), after the variable name, for example, fixsarry(m). For the declaration of a fixed-size array of multiple dimensions, the maximum index numbers are also specified inside a pair of parentheses with delimiter, ",", after the variable name, for example, fixmarry(m,n). An element of an array variable can also be used to hold another array variable to form a compound or complex array. The method used to specify an element of a compund or complex array are similar but additional index is added as an additional index to refllect the parent and child relationship, For example, fixcarry(m)(n). A compound or complex array does not affect the declaration of an array variable, since the declaration is only used to declare the specified array, both the parent and child array are needed to be declared individually.

Besides fixed-size array, an array can also be declared with the size of array can be changed during running the scripts. A dynamic array can be initially declared using either the Dim statement or the ReDim statement. For the declaration of a dynamic array, no maximum index number is specified inside a pair of parentheses, (), after the variable name, for example, dynarry(). However, a dynamic array must be declared subsequently using ReDim statement to determine the number of dimensions and the size of each dimension before assigning any value to the dynamic array. There is also no limit on the number of times of using ReDim statement to resize a dynamic array. A Preserve keyword is provided to preserve the contents of the array when using the ReDim statement to resize a dynamic array. However, the data in the eliminated elements is still erased if the resized array is smaller in size or dimension.

Examples

Examples Of Array variable

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("arry1","arry2"):call heading
vars="Dim arrya(2):arrya(0)=1:arrya(1)=2:arrya(2)=3: arry1=arrya(0):arry2=arrya(1)":dsp_x
vars="Dim arrya(0,1):arrya(0,0)=1:arrya(0,1)=2: arry1=arrya(0,0):arry2=arrya(0,1)":dsp_x
vars="Dim arrya():Redim arrya(1,2): arrya(0,2)=1:arrya(1,1)=2:arrya(1,2)=3: arry1=arrya(0,2):arry2=arrya(1,2)":dsp_x
vars="ReDim arrya(0,2):arrya(0,0)=1:arrya(0,2)=2:ReDim arrya(0,1): arry1=arrya(0,0):arry2=arrya(0,1)":dsp_x
vars="ReDim arrya(0,2):arrya(0,0)=1:arrya(0,2)=2:ReDim Preserve arrya(0,1): arry1=arrya(0,0):arry2=arrya(0,1)":dsp_x
vars="Dim arrya(1),arryb(1):arrya(0)=1:arryb(1)=9: arrya(1)=arryb:arry1=arrya(1):arry2=arrya(1)(1)":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Object Variable

Although Object varaible is a scalar variable, an Object variable is actually a special variable assigned by a Set statement to specify a new instance reference of an Object which containing multiple elements, for example, methods, properties, events and variables. Unlike a function, an Object is not a procedure to carry out a specific function. An Object is a group of automation routine designed for creating duplicable job in form of a package of Object instance to complete a specific task or purpose. Unlike an Array variable, an Object variable is driven by relation instead of index. Each Object element is identified by adding a dot "." after the Object variable name and then followed by the relation variable of the corresponding element. The dot "." notation is used to denote the parent and child relationship between the Object and the contained element. An Object uses a top-down structure, while an array uses an indexing structure. The element of an element of an Object can be specified by repeating the method of notation accordingly. The parameters of the element can also be specified inside a pair of parentheses with delimiter, ",", after the variable name.

Examples

Examples Of Object variable

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("a","b","c"):ucnt=UBound(cmda):call heading
vars="Dim d:Set d=Server.CreateObject(""Scripting.Dictionary""): d.Add ""d1"",""Red"":d.Add ""d2"",""blk"":a=d.Item(""d1""):b=Ubound(d.items):c=d.count":dsp_x
vars="Session.Contents.RemoveAll: Session.Contents(""a1"")=19:Session.Contents(""a2"")=29: a=Session.Contents(2):b=Session.Contents.Key(1): c=Session.Contents.count":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output:

Collection Variable

Collection is the most common data structure used in objects for storing things, for example, numbers, strings, and objects, similar to an array. But unlike an array, the size of a collection expands and contracts dynamically as element items are added or removed from the collection. In other words, the indexed position of an item will a collection will also change as the size of the collection is changed. Therefore, the indexed position of an item is usually not used to specify an item of a collection, although the items in a collection is physically arranged in an indexed order. In fact, each item in a collection can be specified by an unique item key of the collection. In practice, besides accessing an item through the unique item key or the indexed position in the collection, all the items in the collection can also be accessed by iterating, for example, For Each loop, or For Next loop. Besides, the numbering of an indexed position is also not the same as an zero-based array, the indexed position begins with 1.

Examples

Examples Of Collection variable

ASP VbScript Command:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
    <head>
<script runat="server" language="VBScript">
Function printdata
cmda=array("a","a(1)","zz"):ucnt=UBound(cmda):call heading
vars="Dim d:Set d=Server.CreateObject(""Scripting.Dictionary""): d.Add ""d1"",""Red"":d.Add ""d2"",""blk"":a=d.items":dsp_x
vars="Session.Contents.RemoveAll: Session.Contents(""a1"")=19:Session.Contents(""a2"")=29: Set a=Session.Contents:":dsp_x
vars="For Each achd in a:zz=achd:Next":dsp_x
vars="For Each achd in a:zz=a(achd):Next":dsp_x
vars="For i=1 to 2:zz=a(i):Next":dsp_x
End Function
Dim abb,cnt,cmda,cmp,dai,dlt,dte,dad,e,fnd,flg,fir,f_dw,gbd,hor,i,ild,k,mth,min,num,pnn,pi,sec,str1,str2,str,strs,tme,tmp,ucnt,var,vars,varx,wkd,x,z:varx=0
Function heading:If var=1 Then:tmp="":Else:tmp="<b>vars</b>":End If:For i=0 to ucnt:tmp=tmp&"<b>"&rmv_ctrl(cmda(i))&", TypeName</b>":Next:Response.Write "Results on Microsoft Windows Server 2008 R2 Standard  x64, Microsoft-IIS/7.5, VB Version 14.0<br />"&"<i>"&tmp&"</i>":End Function
Function dsp_x:Dim tmp_a,tmp_b,i:If varx=0  Then:Execute vars:End If:If var=1 Then:tmp_a="":Else:tmp_a=rmv_ctrl(vars):End If:For i=0 to ucnt:tmp_b=cmd_b(cmda(i)):if i/2=fix(i/2) Then:tmp_b="<b>"&tmp_b&"</b>":End If:tmp_a=tmp_a&tmp_b:Next:Response.Write "<i>"&tmp_a&"</i>":End Function
Function rmv_ctrl(blk_str):Select Case blk_str:Case chr(0):blk_str="NUL":Case chr(1):blk_str="SOH":Case chr(2):blk_str="STX":Case chr(3):blk_str="ETX":Case chr(4):blk_str="EOT":Case chr(5):blk_str="ENQ":Case chr(6):blk_str="ACK":Case chr(7):blk_str="BEL":Case chr(8):blk_str="BS":Case chr(9):blk_str="HT":Case chr(10):blk_str="LF":Case chr(11):blk_str="VT":Case chr(12):blk_str="FF":Case chr(13):blk_str="CR":Case chr(14):blk_str="SO":Case chr(15):blk_str="SI":Case chr(16):blk_str="DLE":Case chr(17):blk_str="DC1":Case chr(18):blk_str="DC2":Case chr(19):blk_str="DC3":Case chr(20):blk_str="DC4":Case chr(21):blk_str="NAK":Case chr(22):blk_str="SYN":Case chr(23):blk_str="ETB":Case chr(24):blk_str="CAN":Case chr(25):blk_str="EM":Case chr(26):blk_str="SUB":Case chr(27):blk_str="ESC":Case chr(28):blk_str="FS":Case chr(29):blk_str="GS":Case chr(30):blk_str="RS":Case chr(31):blk_str="US":Case chr(127):blk_str="DEL":End Select:rmv_ctrl=blk_str:If IsNull(blk_str) OR IsEmpty(Blk_str) OR blk_str="" OR IsNumeric(Blk_str) Then:Else:rmv_ctrl=Replace(Replace(Replace(Replace(Replace(blk_str,"&","&amp;"),"  "," &nbsp;"),"""","&quot;"),"<","&lt;"),">","&gt;"): End If :End Function
Function cmd_b(blk_str):cmd_b="["&cmd_x(blk_str)&"], "&cmd_x("TypeName("&blk_str&")"):End Function
Function cmd_x(blk_str):On Error Resume Next:Dim xans, tmp:xans="":tmp="":execute "xans="&blk_str:If Err.Number <> 0  Then:xans=cmd_x("TypeName("&blk_str&")"):Select Case xans:Case 9::Case Else:xans="error":End Select:End If:If IsArray(xans)=False Then:cmd_x=rmv_ctrl(xans): Else:tmp=lst_arry(xans):cmd_x=trim(tmp):End If:End Function
Function lst_arry(blk_str):Dim tmp,i,q:q="""":tmp="":For i=0 to UBound(blk_str):if VarType(blk_str(i))>1 And VarType(blk_str(i))<6 Then:q="'":End If:tmp=tmp&" "&q&rmv_ctrl(blk_str(i))&q:Next:lst_arry=trim(tmp):End Function
</script>
        <title>Sample Page</title>
        <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> 
        <style type="text/css">
           i {display:table-row}
           u,b {display:table-cell}
        </style>
    </head>
    <body>
<%call printdata %>
    </body>
</html>

HTML Web Page Embedded Output: