Force iOS numeric keyboard with custom / currency pattern

Question

Is there a possiblity to force an iOS-device to show the numeric keyboard while using a custom pattern as input type?

my input pattern:

Answer 1

I made this little snippet to achieve what you want and I've tested it on iPhone 5 v7.0.3

I used e.which to read CharCode entered and then push it into an array (before) which represents digits before decimal mark and another array (after) to move values from (before) array past the decimal mark.

It might look complicated, due to my humble programming skills.

1) Code demo - 2) Currency conversion demo

HTML:

JS

Variables and functions:

// declare variables
var i = 0,
    before = [],
    after = [],
    value = [],
    number = '';

// reset all values
function resetVal() {
    i = 0;
    before = [];
    after = [];
    value = [];
    number = '';
    $("#number").val("");
    $(".amount").html("");
}

// add thousand separater
function addComma(num) {
  return num.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

Main code:

// listen to keyup event
$("#number").on("keyup", function (e, v) {

    // accept numbers only (0-9)
    if ((e.which >= 48) && (e.which <= 57)) {

        // convert CharCode into a number   
        number = String.fromCharCode(e.which);

        // hide value in input
        $(this).val("");

        // main array which holds all numbers
        value.push(number);

        // array of numbers before decimal mark
        before.push(value[i]);

        // move numbers past decimal mark
        if (i > 1) {
            after.push(value[i - 2]);
            before.splice(0, 1);
        }

        // final value
        var val_final = after.join("") + "." + before.join("");

        // show value separated by comma(s)
        $(this).val(addComma(val_final));

        // update counter
        i++;

        // for demo
        $(".amount").html(" " + $(this).val());

    } else {

        // reset values
        resetVal();
    }
});

Reset:

// clear arrays once clear btn is pressed
$(".ui-input-text .ui-input-clear").on("click", function () {
    resetVal();
});

Result: