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The URLSearchParams interface defines utility methods to work with the query string of a URL.

An object implementing URLSearchParams can directly be used in a for...of structure, instead of entries(): for (var p of mySearchParams) is equivalent to for (var p of mySearchParams.entries()).

Constructor

URLSearchParams()
Constructor returning a URLSearchParams object.

Properties

This interface doesn't inherit any property.

Methods

This interface doesn't inherit any method.

URLSearchParams.append()
Appends a specified key/value pair as a new search parameter.
URLSearchParams.delete()
Deletes the given search parameter, and its associated value, from the list of all search parameters.
URLSearchParams.entries()
Returns an iterator allowing to go through all key/value pairs contained in this object.
URLSearchParams.get()
Returns the first value associated to the given search parameter.
URLSearchParams.getAll()
Returns all the values association with a given search parameter.
URLSearchParams.has()
Returns a Boolean indicating if such a search parameter exists.
URLSearchParams.keys()
Returns an iterator allowing to go through all keys of the key/value pairs contained in this object.
URLSearchParams.set()
Sets the value associated to a given search parameter to the given value. If there were several values, delete the others.
URLSearchParams.toString()
Returns a string containg a query string suitable for use in a URL.
URLSearchParams.values()
Returns an iterator allowing to go through all values of the key/value pairs contained in this object.

Example

var paramsString = "q=URLUtils.searchParams&topic=api"
var searchParams = new URLSearchParams(paramsString);

//Iterate the search parameters.
for (let p of searchParams) {
  console.log(p);
}

searchParams.has("topic") === true; // true
searchParams.get("topic") === "api"; // true
searchParams.getAll("topic"); // ["api"]
searchParams.get("foo") === null; // true
searchParams.append("topic", "webdev");
searchParams.toString(); // "q=URLUtils.searchParams&topic=api&topic=webdev"
searchParams.set("topic", "More webdev");
searchParams.toString(); // "q=URLUtils.searchParams&topic=More+webdev"
searchParams.delete("topic");
searchParams.toString(); // "q=URLUtils.searchParams"

Specifications

Specification Status Comment
URL
The definition of 'URLSearchParams' in that specification.
Living Standard Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 49 29.0 (29.0) No support 36 No support
entries(), keys(), values(), and support of for...of 49 44.0 (44.0) No support 36 No support
Feature Android Android Webview Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support No support 49 29.0 (29.0) No support ? No support 49
entries(), keys(), values(), and support of for...of No support 49 44.0 (44.0) No support ? No support 49

See also

Étiquettes et contributeurs liés au document

 Dernière mise à jour par : jpmedley,