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POCompare variables in Javascript
 

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    <p>I have a script that takes in the value of input tags on a click event and I need to compare them to see if they are the same value. Iam still learning Javascript and JQuery so I really need to find some help. Here is my code:</p> <pre><code>&lt;!DOCTYPE html&gt; &lt;html&gt; &lt;head&gt; &lt;script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"&gt; &lt;/script&gt; &lt;script&gt; $(document).ready(function(){ $("#swapCard_0").click(function(){ var phpval = document.getElementById('swapCard_0').value; }); $("#swapCard_1").click(function(){ var phpval = document.getElementById('swapCard_1').value; }); $("#swapCard_2").click(function(){ var phpval = document.getElementById('swapCard_2').value; }); $("#swapCard_3").click(function(){ var phpval = document.getElementById('swapCard_3').value; }); }); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;input type="image" id="swapCard_0" src="image/image0.jpg" value="0"&gt; &lt;input type="image" id="swapCard_1" src="image/image1.jpg" value="1"&gt; &lt;input type="image" id="swapCard_2" src="image/image2.jpg" value="0"&gt; &lt;input type="image" id="swapCard_3" src="image/image3.jpg" value="1"&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>So Say a user clicks image 0 and then clicks image 2 which both have the value of 0, how can I compare them in the function then execute more code? I am sure I would need an if statement but I am not sure how to properly test it in my code. I would like to play a sound when the user clicks two different images that have the same value.</p>
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    1. UShochl
    1. USjames
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    1. COUse '===' operator to compare two variables. Declare `phpval` as global and on image click check if phpval is not null and if it has '===' the same val as phpval.
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      1. USDiomedes Andreou
 

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