Get query string values in JavaScript by URLSearchParam: get query string parameter value, check it exist, loop on params, modify param value and more.

URL query parameter processing required in JavaScript for many purpose. If you are looking for such solution, then here is best solution for manage query sting params and i.e., URLSearchParam.

Steps to get query string values by URLSearchParam

Following is step by step code example for use URLSearchParam to get URL query string values.

  1. Get URL search query string in variable.
  2. Create URLSearchParams object using query string.
  3. Get query param value by get method of URLSearchParams.

Code example for query string values in JavaScript. Example create URLSearchParams object and get “test” parameter value by get method.

// suppose url is http://example.com?test=demo&name=cool
var queryParams = new URLSearchParams(window.location.search);
alert(queryParams.get('test'));

List of URLSearchParam functions in JavaScript

Following list contains available methods or function in URLSearchParam object. You can create URLSearchParam interface object using URL query string and handle query parameters easily.

  • append: ƒ append()
  • delete: ƒ delete()
  • entries: ƒ entries()
  • forEach: ƒ forEach()
  • get: ƒ ()
  • getAll: ƒ getAll()
  • has: ƒ has()
  • keys: ƒ keys()
  • set: ƒ ()
  • sort: ƒ sort()
  • toString: ƒ toString()
  • values: ƒ values()

FAQs for URLSearchParams solution

Following are some question answers regarding JavaScript URLSearchParams solution for handle query string.

Is URLSearchParams solution required any plugin?
No, URLSearchParams is default feature in JavaScript. You not required any third party plugin. URLSearchParams interface defines utility methods to work with the query string of a URL.

Is URLSearchParams interface supported by all browser?
Yes, URLSearchParams interface supported by all modern browsers. You can use it in your code for easy query string process without browser support issue.

Hope, you found solution helpful. If you have any queries or suggestion for better solution, then you can post your comment in comment section. Also, if you have confusion in URLSearchParams functions usage, you can check more examples on developer.mozilla.org.