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4GuysFromRolla.com : ASP FAQS : Strings


Question:

I want to repeat a character or string X number of times, is there a way I can do this without expensive looping operations?


[Print this FAQ]

Answer: Both VBScript and JScript can help you repeat a string without too much processing by making use of some functions / methods designed to work with arrays. Here is the same solution in both JScript and VBScript:

<%@language=JScript%>
<%
    function repeatString(strInput, intCount) {
        var arrTmp = new Array(intCount+1);
        return arrTmp.join(strInput);
    }
    
    // Test it out:
    Response.Write(repeatString('hi<br>', 100));
%>


<%@language=VBScript%>    
<%
    Function RepeatString(strInput, intCount)
        Dim arrTmp()
        ReDim arrTmp(intCount)
        RepeatString = Join(arrTmp, strInput)
    End Function
    
    // Test it out:
    Response.Write RepeatString("hello<br>", 10)
%>

While these solutions work, Bill Wilkinson has chimed in with a more compact and simpler solution. For example, if you want to repeat "hello<br>" ten times you can use:

str = Replace( Space(10), " ", "hello<br>" )

Neat, eh? Kudos to Bill and his out of the box thinking.


FAQ posted by Richard Lowe at 3/24/2001 6:21:07 PM to the Strings category. This FAQ has been viewed 49,031 times.

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Last computed at 9/17/2007 3:22:00 AM


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