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How To Catch The End Filename Only From A Path With Javascript?

If I have a variable 'path' which contains a full path with directories and all, to the filename, how can I strip everything except the filename? ex: Convert dir/picture/images/hel

Solution 1:

A regular expression replace would work, barring any special function to do this:

var filename = path.replace(/.*\//, '');

Solution 2:

Whatever you use, consider whether the string may have a GET string or a hash tail, and if a file name may not have an extension.

String.prototype.filename= function(){
   var s= this.substring(this.lastIndexOf('/')+1);
   var f=  /^(([^\.\?#]+)(\.\w+)?)/.exec(s);
   return f[1] || '';
}
var url= 'http://www.localhost.com/library/paul_1.html?addSrc=5';
alert(url.filename()) /*  returns>> paul_1.html */

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