Trim String In Javascript

for all your javascript trimming needs...

function trim(inputString) {
if (typeof inputString != "string") return inputString;
return inputString
//clear leading spaces and empty lines
.replace(/^(s|
|
)*((.|
|
)*?)(s|
|
)*$/g,"$2")

//take consecutive spaces down to one
.replace(/(s(?!(
|
))(?=s))+/g,"")

//take consecutive lines breaks down to one
.replace(/(
|
)+/g,"

")

//remove spacing at the beginning of a line
.replace(/(
|
)s/g,"$1")

//remove spacing at the end of a line
.replace(/s(
|
)/g,"$1");
}