4 thoughts on “jQuery Sum & Subtract Two Input Fields”

  1. Hi, I think the function sum() can be rewritten as follows:
    function sum(){
    $(“#sum”).val(Number($(“#num1”).val())+Number($(“#num2”).val()));
    $(“#subt”).val(Number($(“#num1”).val())-Number($(“#num2”).val()));
    }

    Also, $(“#num1, #num2”).on(“keydown keyup”, function() {
    sum();
    });
    can be rewritten as $(“#num1, #num2”).on(“keydown keyup”,sum);

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  2. Thanks for your input Deepak, i would appreciate if you write your code in Code block.
    For example like this:

    $(document).ready(function() {
    //this calculates values automatically 
    sum();
    $("#num1, #num2").on("keydown keyup",sum);
});

function sum(){
$("#sum").val(Number($("#num1").val())+Number($("#num2").val()));
$("#subt").val(Number($("#num1").val())-Number($("#num2").val()));
}
}

    For your convenience you can check code block format here
    https://en.support.wordpress.com/markdown-quick-reference/

    Or leave a jsfiddle.net working demo link, as i provided above in my tutorial. 🙂

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