How to search a string

Markh51 · Jul 28, 2003

How would I search a string for a . (decimal point)

All I want is something like:

If decimal point exists{
DO THIS
}
else{
DO THIS
}

Thanks,
Mark

LFI · Jul 28, 2003

Code:

if(stringVar.indexOf(&quot;.&quot;) > -1)
 do this
else
 do that

Lrnmore · Jul 28, 2003

Try this out.

<html>
<head>
<script language= "JavaScript">
function ckdec() {
var refstring = /\./g; //sets ref for char to be searched for
var mystrg = document.form1.testval.value;
if (mystrg.search(refstring) > -1) { // if search returns found value > -1
alert ("you have a decimal point!&quot

; }
else { alert ("you did not enter a decimal point!&quot

;}
}
</script>
</head>
<body>
<form name="form1">
<input type="text" name="testval" size="15" value="enter a num">
<input type="button" value="click to test" onClick="ckdec();">
</form>
</body
</html>

Good Luck.

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How to search a string

Markh51

Programmer

LFI

Programmer

Lrnmore

Technical User

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