InStr Functions

Abs Function,Array Function,Asc Function,Atn Function,CBool Function,CByte Function,CCur Function,CDate Function,CDbl Function,Chr Function,CInt Function,CLng Function,Cos Function,CreateObject Function,CSng Function,CStr Function,Date Function,DateAdd Function,DateDiff Function,DatePart Function,DateSerial Function,DateValue Function,Day Function,Eval Function,Exp Function,Filter Function,Fix Function,FormatCurrency Function,FormatDateTime Function,FormatNumber Function,FormatPercent Function,GetLocale Function,GetObject Function,GetRef Function,Hex Function,Hour Function,InputBox Function,InStr Function,InStrRev Function,Int Function,IsArray Function,IsDate Function,IsEmpty Function,IsNull Function,IsNumeric Function,IsObject Function,Join Function,LBound Function,LCase Function,Left Function,Len Function,LoadPicture Function,Log Function,LTrim Function,Mid Function,Minute Function,Month Function,MonthName Function,MsgBox Function,Now Function,Oct Function,Replace Function,RGB Function,Right Function,Rnd Function,Round Function,RTrim Function,ScriptEngine Function,ScriptEngineBuildVersion Function,ScriptEngineMajorVersion Function,ScriptEngineMinorVersion Function,Second Function,Sgn Function,Sin Function,Space Function,Split Function,Sqr Function,StrComp Function,String Function,StrReverse Function,Tan Function,Time Function,Timer Function,TimeSerial Function,TimeValue Function,Trim Function,TypeName Function,UBound Function,UCase Function,VarType Function,Weekday Function,WeekdayName Function,Year Function Home home | Other Resources other resources | Advertise with us advertise | Link to us link to us | Contact us contact | Bookmark Us!
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  Home > Functions > InStr Functions
  • Abs Function
  • Array Function
  • Asc Function
  • Atn Function
  • CBool Function
  • CByte Function
  • CCur Function
  • CDate Function
  • CDbl Function
  • Chr Function
  • CInt Function
  • CLng Function
  • Cos Function
  • CreateObject Function
  • CSng Function
  • CStr Function
  • Date Function
  • DateAdd Function
  • DateDiff Function
  • DatePart Function
  • DateSerial Function
  • DateValue Function
  • Day Function
  • Eval Function
  • Exp Function
  • Filter Function
  • Fix Function
  • FormatCurrency Function
  • FormatDateTime Function
  • FormatNumber Function
  • FormatPercent Function
  • GetLocale Function
  • GetObject Function
  • GetRef Function
  • Hex Function
  • Hour Function
  • InputBox Function
  • InStr Function
  • InStrRev Function
  • Int Function
  • IsArray Function
  • IsDate Function
  • IsEmpty Function
  • IsNull Function
  • IsNumeric Function
  • IsObject Function
  • Join Function
  • LBound Function
  • LCase Function
  • Left Function
  • Len Function
  • LoadPicture Function
  • Log Function
  • LTrim Function
  • Mid Function
  • Minute Function
  • Month Function
  • MonthName Function
  • MsgBox Function
  • Now Function
  • Oct Function
  • Replace Function
  • RGB Function
  • Right Function
  • Rnd Function
  • Round Function
  • RTrim Function
  • ScriptEngine Function
  • ScriptEngineBuildVersion Function
  • ScriptEngineMajorVersion Function
  • ScriptEngineMinorVersion Function
  • Second Function
  • Sgn Function
  • Sin Function
  • Space Function
  • Split Function
  • Sqr Function
  • StrComp Function
  • String Function
  • StrReverse Function
  • Tan Function
  • Time Function
  • Timer Function
  • TimeSerial Function
  • TimeValue Function
  • Trim Function
  • TypeName Function
  • UBound Function
  • UCase Function
  • VarType Function
  • Weekday Function
  • WeekdayName Function
  • Year Function

    • InStr Function

    Returns the position of the first occurrence of one string within another.

    InStr([start, ]string1, string2[, compare])

    Arguments

    start

    Optional. Numeric expression that sets the starting position for each search. If omitted, search begins at the first character position. If start contains Null, an error occurs. The start argument is required if compare is specified.

    string1

    Required. String expression being searched.

    string2

    Required. String expression searched for.

    compare

    Optional. Numeric value indicating the kind of comparison to use when evaluating substrings. See Settings section for values. If omitted, a binary comparison is performed.

    Settings

    The compare argument can have the following values:

    ConstantValueDescription
    vbBinaryCompare0Perform a binary comparison.
    vbTextCompare1Perform a textual comparison.

    Return Values

    The InStr function returns the following values:

    IfInStr returns
    string1 is zero-length0
    string1 is NullNull
    string2 is zero-lengthstart
    string2 is NullNull
    string2 is not found0
    string2 is found within string1Position at which match is found
    start > Len(string2)0

    Remarks

    The following examples use InStr to search a string: 

    Dim SearchString, SearchChar, MyPos
SearchString ="XXpXXpXXPXXP"   ' String to search in.
SearchChar = "P"   ' Search for "P".
MyPos = Instr(4, SearchString, SearchChar, 1) 
    ' A textual comparison starting at position 4. Returns 6.
MyPos = Instr(1, SearchString, SearchChar, 0)  
    ' A binary comparison starting at position 1. Returns 9.    
MyPos = Instr(SearchString, SearchChar)   
    ' Comparison is binary by default (last argument is omitted). Returns 9.
MyPos = Instr(1, SearchString, "W")  
    ' A binary comparison starting at position 1. Returns 0 ("W" is not found).

    Note   The InStrB function is used with byte data contained in a string. Instead of returning the character position of the first occurrence of one string within another, InStrB returns the byte position.

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    VBScriptOnline.com - Abs Function,Array Function,Asc Function,Atn Function,CBool Function,CByte Function,CCur Function,CDate Function,CDbl Function,Chr Function,CInt Function,CLng Function,Cos Function,CreateObject Function,CSng Function,CStr Function,Date Function,DateAdd Function,DateDiff Function,DatePart Function,DateSerial Function,DateValue Function,Day Function,Eval Function,Exp Function,Filter Function,Fix Function,FormatCurrency Function,FormatDateTime Function,FormatNumber Function,FormatPercent Function,GetLocale Function,GetObject Function,GetRef Function,Hex Function,Hour Function,InputBox Function,InStr Function,InStrRev Function,Int Function,IsArray Function,IsDate Function,IsEmpty Function,IsNull Function,IsNumeric Function,IsObject Function,Join Function,LBound Function,LCase Function,Left Function,Len Function,LoadPicture Function,Log Function,LTrim Function,Mid Function,Minute Function,Month Function,MonthName Function,MsgBox Function,Now Function,Oct Function,Replace Function,RGB Function,Right Function,Rnd Function,Round Function,RTrim Function,ScriptEngine Function,ScriptEngineBuildVersion Function,ScriptEngineMajorVersion Function,ScriptEngineMinorVersion Function,Second Function,Sgn Function,Sin Function,Space Function,Split Function,Sqr Function,StrComp Function,String Function,StrReverse Function,Tan Function,Time Function,Timer Function,TimeSerial Function,TimeValue Function,Trim Function,TypeName Function,UBound Function,UCase Function,VarType Function,Weekday Function,WeekdayName Function,Year Function