CODEWITHSUNDEEP
javascriptjquery
Derple
Derple

Reputation: 863

Leading zeros with decimal, Javascript

I have a keypad of which inputs numbers for entering a payment.

With this i have leading zeros and would like to know the best way forward to dealing with/removing them efficiently.

JSfiddle of the keypad

The JS/JQ

$(".button_epos_e").click( function() {

    btn_id = $(this).attr("id");                          
    btn_num = btn_id.replace("pay_", "");
    // alert(btn_num);

    decimal = $("#number").text();
    // alert(decimal);
    var truenumber = decimal.replace(".", "");
    // alert(truenumber);

    truenumber += btn_num;
     //alert(truenumber);

    postDecimal = truenumber.slice(-2);
    // alert(postDecimal);
    preDecimal = truenumber.replace(postDecimal, "");
    preDecInt = parseInt(preDecimal);
    // alert(preDecimal);
    newDecimal = preDecimal+"."+postDecimal;

    $("#number").html(newDecimal);  


});

Upvotes: 0

Views: 546

Answers (1)

MaxArt
MaxArt

Reputation: 22637

There's quite a bit of things that should be changed. But this should suffice for your needs:

preDecimal = +truenumber.slice(0, -2) + "";

The +truenumber.slice(0, -2) part converts the string to a number, deleting unnecessary leading zeros, and adding an empty string converts it back to a string (which isn't really necessary, though).

Upvotes: 1

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