Navigator vibrate

JS navigator.vibrate()

Navigator.vibrate() is cool !
But it is not compatible with all browsers.

Example 1 on Iphone

function vibrate ( ) {
navigator.vibrate(500);
}

Console

TypeError: navigator.vibrate is not a function. (In 'navigator.vibrate(500)', 'navigator.vibrate' is undefined) at Line: 4

Example 2 on Iphone

let checkVibrate =
window .navigator && window.navigator.vibrate;

function vibrate ( ) {
if(checkVibrate)navigator.vibrate(500);
}

Console

If you use the first example, Iphone users will have an error.
With the second example, the code continues without error.

See compatibility
https://developer.mozilla.org/en-US/docs/Web/API/Navigator/vibrate

If someone has a better way, post a comment thanks.