URLSearchParams: append() method
Note: This feature is available in Web Workers.
The append() method of the URLSearchParams
interface appends a specified key/value pair as a new search parameter.
As shown in the example below, if the same key is appended multiple times it will appear in the parameter string multiple times for each value.
Syntax
js
append(name, value)
Parameters
Return value
None (undefined).
Examples
js
let url = new URL("https://example.com?foo=1&bar=2");
let params = new URLSearchParams(url.search);
//Add a second foo parameter.
params.append("foo", 4);
//Query string is now: 'foo=1&bar=2&foo=4'
Specifications
| Specification |
|---|
| URL Standard # dom-urlsearchparams-append |
Browser compatibility
BCD tables only load in the browser