'undefined' is not a function evaluating el.click() in Safari

Question

I would like to run a js function on pressing Enter button. Everything works great in IE, Chrome and Opera, but I get an error (explained below) in Safari.

I need a

Answer 1

I came across this same issue while working on a similar problem. What I came up with is the following for triggering click events in safari(as well as other browsers, of course):

var t = document.getElementById('someidhere');
if (document.dispatchEvent) {
    var e = new MouseEvent('click', {
        view: window,    // Window associated with the event
        bubbles: true,
        cancelable: true
    });
    t.dispatchEvent(e);
} else if (document.fireEvent) {
    t.fireEvent('onclick');
} else if (t.click) {
    t.click();
}

According to @Dennis, your code already works for Firefox, however this code should work in Firefox anyway as of version 79.0(the version it was tested in).

Note that initEvent() has been deprecated. The new method of creating the event through the Event constructor doesn't work in Internet Explorer, however.