How to check if some string is exist or not in the url using java script.For a example,I want to check “.php” extension exist in the current url.This can be do like this.


  • This can be use to get current page url(document.URL
  • Can be use to check extension of the current page
  • Can be use to check the position of something in the string or url
  • Can be use to check string/numbers,characters,…etc in the current url

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The indexOf() method returns the index at which value can be found in the array.
This method returns -1 means that not exist.[/stextbox]