Javascript Input Text Masking without Plugin

Question

I want to mask the text in an input box without changing the actual value. I can not use any plugins.

I am currently doing this - but as you can see the issue is tha

Answer 1

You need two inputs

Two inputs should get the job done. One input will contain the masked text and the other will be a hidden input that contains the real data.

The way I approached the masking is to build a function for both masking and unmasking the content so everything stays uniform.

$("input[name='masknumber']").on("keyup change", function(){
        $("input[name='number']").val(destroyMask(this.value));
    this.value = createMask($("input[name='number']").val());
})

function createMask(string){
    return string.replace(/(\d{2})(\d{3})(\d{2})/,"$1-$2-$3");
}

function destroyMask(string){
    return string.replace(/\D/g,'').substring(0,8);
}

Working JSFiddle