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POHow to create closure in loop and store it in variable for later execution
 

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  1. POHow to create closure in loop and store it in variable for later execution
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    <p>See code below. I've tried to strip it to its bare bones. </p> <p>I have a _queue array. I want to iterate 10 times. On each iteration, I want to create a function that has a properly scoped reference for j (i.e. j=0 on the first iteration, j=1 on the second iteration, etc.)</p> <p>I want to store that function in variable f, and then add f to the _queue array so I can call it later.</p> <p>The problem of course is that on each iteration of the first loop, instead of storing the closure in f, it immediately executes the closure. </p> <p>My question is this: How do I store the function with its proper j variable so that I can add it to the _queue array?</p> <pre><code> _queue = []; for (j = 0; j &lt; 10; j++) { var f = (function (index) { alert(index); })(j); //code is executed here instead of stored in the f variable _queue.push(f); //Add f } for (k = 0; k &lt; _queue.length; k++){ _queue[k].call(); } </code></pre>
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    1. CO+1, good question
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