Syntax
js
append(name, value)
Parameters
Return value
None (undefined).
Examples
Adding the same parameter multiple times
js
const url = new URL("https://example.com?foo=1&bar=2");
const 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 # dom-urlsearchparams-append |