method URLSearchParams.prototype.keys
#URLSearchParams.prototype.keys(): IterableIterator<string>Returns an ES6 Iterator over the names of each name-value pair.
const params = new URLSearchParams('foo=bar&foo=baz');
for (const name of params.keys()) {
console.log(name);
}
// Prints:
// foo
// foo
Return Type #
IterableIterator<string>