In URLSearchParams interface, the has() method returns a Boolean which tells us that if the parameter with input name exists it will return true, else false.
Syntax:
var Bool = URLSearchParams.has(name)
Returns: True – if name present, else it will return False.
Parameters:
name – Input the name of the parameter.
Example1:
let param = new URLSearchParams(url.search.slice(1)); param.has('bar') === true; |
Output:
true
Example2: When input parameter is not present
let param = new URLSearchParams(url.search.slice(1)); param.has('foo') === true; |
Output:
false
Supported Browsers:
- Google Chrome
- IE
- Edge
- Opera
- Apple Safari
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