Add a variable to textfield JavaScript

Question

For my Javascript assignment I have to make a slot machine.

The one part I can't get is adding my totalCredits Variable to my textfield.

It just puts the variable beside the credits instead of adding them. (want to add 30 + 2 but I get 302)

I have tried parseFloat and parseInt both give me "ReferenceError: invalid assignment left-hand side"

This is the function

    function checkForWin() {

     if (bet1 == true && symbols[rng1].color == symbols[rng2].color && symbols[rng2].color == 
        symbols[rng3].color && symbols[rng1].color == symbols[rng3].color) {

document.getElementById("message").innerHTML = "Same Color You Win 2 Credits";
            totalCredits = totalCredits + 2;

            parseInt(document.getElementById('credits').value) = totalCredits;
            console.log(totalCredits);

     };

Code : https://jsfiddle.net/Socha/ndLn73bw/

What does this line do ? parseInt(document.getElementById('credits').value) = totalCredits; — Sandeep Nayak
– Sandeep Nayak, Commented Oct 14, 2015 at 6:23
Do it like this totalCredits = parseInt(totalCredits) + 2; and document.getElementById('credits').value = totalCredits; — Sandeep Nayak
– Sandeep Nayak, Commented Oct 14, 2015 at 6:24
You can't redeclare the variable by putting it on the left hand side. You've solved your own problem. — Nicholas Hazel
– Nicholas Hazel, Commented Oct 14, 2015 at 6:31

Ajmal E S · Accepted Answer · 2015-10-14 06:27:12Z

1

Change it as below

            total = parseInt(totalCredits) + 2;

            document.getElementById('credits').value = total;

answered Oct 14, 2015 at 6:27

Ajmal E S

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