URLSearchParams.prototype.has

Returns true if the parameter exists.

Parameters

• name

  The name of the parameter

Example

let params = new URLSearchParams("foo=1&bar=2")
params.has("foo")

true

let params = new URLSearchParams("a=1&b=2")
params.has("c")

false

let params = new URLSearchParams("test=")
params.has("test")

true