Posted By

davidwaterston on 03/15/12


Tagged

String


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Case-sensitive 'Starts With'


 / Published in: JavaScript
 

A simple Javascript function to tell if one string starts with another.

Usage:

if (myString.startsWith("anything") { do something… }

NOTE: As always, make sure this is defined before it is used!

  1. if (typeof String.prototype.startsWith != 'function') {
  2. String.prototype.startsWith = function(str) {
  3. return (this.lastIndexOf(str, 0) === 0);
  4. };
  5. }

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