智能手机浏览器上的手机号码验证

Question

I used the below code to validate mobile number:

function lfnCheckMob(e) {
    var key1 = e.keyCode;
    if (key1 == 8 || key1 == 9 || key1 == 46 || (key1 >= 35 && key1 <= 40)) { return true; }
    if (e.shiftKey || e.ctrlKey || e.altKey) {
        e.preventDefault();
    }
    else {
        var key = e.keyCode;
        if (!((key >= 48 && key <= 57) || (key >= 96 && key <= 105))) {
            e.stopPropagation();
            e.preventDefault();
        }
    }
}

It works fine on desktop browsers. But when I try it on a browser on smartphone, it allows special characters like &, @. I tried putting alert to see the keycode value on phone, its showing keycode 0 for all the keys. Can someone please help me for this?

Answer 1

Either go with 1

<input type="number" step="1" />

OR

<input type="text" pattern="\d*" />

And for more information, use link