Remove Extra Spaces With Regexp

Aug 1, 2006

I know that

str.replace(/^s+|s+$/g,'');

will trim a string of space, but what about removing extra spaces from the
middle?

Where

"hello world"

becomes

"hello world"

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Aug 1, 2009

i m using the following validation code to validate email id

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{
msg=msg+"Must Enter a valid Login-id/Email
";
document.getElementById("customer_name").focus();
}

now i need that if the email id contains white blank space in front of email id or end of email id then this validation should pass otherwise not.

at present if there is blank space in front and end of email id then the validation doesnt passes and gives alert.

what should i add in it to validate it or how can it automatically remove white spaces before validating.

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Oct 15, 2010

I am trying to remove spaces from the 'username' field but leave the spaces in the first and last name fields.

The below code removes *one* space from the string but no more.

<html>
<head>
<title> </title>
<script language="javascript">

[Code]....

But I am not sure how to define username still contains space

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Dec 14, 2009

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Nov 6, 2009

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Code:

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[Code]....

But i dont know how to make it work in <input> and this is also without spaces check ..

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Jan 19, 2007

I found this in felgall's page. I added script tag

<script type="text/javascript">

var re = /(t)he/g;
var mystring = "Over the moon.";
re.text(mystring);
alert(RegExp.input); // or RegExp.$_
alert(RegExp.leftContext); // or RegExp["$`"]
alert(RegExp.rightContext); // or RegExp["$'"]
alert(RegExp.lastMatch); // or RegExp["$&"]
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alert(re.source);

</script>

I don't see message box. Please tell me what I can do.

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I have a line of code:

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What I require is a bigger space here:

var cdate=dayarray[day]+", "+montharray[month]+" "+daym+" "+year+" "+" "+" "+hours+":"+minutes+":"+seconds+" "+dn+""

I tried +"xxx"+ (where the xs are three spaces) but that didn't work either.

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