How To Get Query String From Url With Javascript?

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Query string is part of url. After question mark query string begins with simple key-value pairs. Popular javascript frameworks provide libraries to get query string with javascript. But how can we get it with pure javascript without using any javascript framework?

First we create a function to to get, parse the url and get values with keys.

  • Here we create a function name getParameterByName.
  • We provide key with name parameter.
  • url parameter is optional we can pass it if we need.
  • function returns value of the key.

Usage is very simple like a dictionary structure.

  • This our sample url

  • We use our function getParameterByName with the key exists in url.
  • size will be 15 without example url.
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LEARN MORE  Javascript Syntax and Basics

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