Hi All,

We in very common scenario come across a scenario where we want user to just be able to enter Mobile Number Format. This small code piece will help in validating user to enter only Mobile number format.

$(".Mobilenumbers").keypress(function (e) {
    var key;
    var isCtrl = false;
    var keychar;
    var reg;
    if (window.event) {
        key = e.keyCode;
        isCtrl = window.event.ctrlKey
    }
    else if (e.which) {
        key = e.which;
        isCtrl = e.ctrlKey;
    }
    if (isNaN(key)) return true;
    keychar = String.fromCharCode(key);

    // Comment: check for backspace or delete, or if Ctrl was pressed
    if (key == 8 || isCtrl) {
        return true;
    }
    var regex = new RegExp("^[0-9]|[+]|[-]+$");
    var str = String.fromCharCode(!e.charCode ? e.which : e.charCode);
    if (regex.test(str)) {
        var Indx = $(this).val().indexOf('.');
        if (Indx !== -1 && key == 46) {
            e.preventDefault();
        }
        else {
            return true;
        }
    }
    e.preventDefault();
    return false;
});

"Mobilenumbers" is the class given to the input field for Entering Mobile Number.

Happy Coding......