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POHow to stop a javascript function from within another function?
 

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  1. POHow to stop a javascript function from within another function?
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    <p>I'm developing a simple slideshow system. I've got the slideshow wrapped in a hidden div, which is shown when a thumbnail from the gallery is clicked.</p> <p>The slideshow works through a function called <code>commence()</code>, which is executed when the play button is clicked.</p> <p>At the moment I've got it set to hide to whole <code>div</code> again when stop is clicked, but I would like to keep the <code>div</code> shown, simply stop the slideshow, in other words, stop the <code>commence()</code> function.</p> <p>Can anyone tell me how to do this? </p> <p>Here is my JS:</p> <pre><code>function commence() { hidden = document.getElementById("hidden"); hidden.style.display = 'block'; pause = document.getElementById("pause"); pause.style.display = 'block'; play = document.getElementById("play"); play.style.display = 'none'; pic = document.getElementById("picbox"); // Assign var pic to the html element. imgs = []; // Assign images as values and indexes to imgs array. /* --------------------------- IMAGE URLS FOR IMGS ARRAY -------------------------*/ imgs[0] = "/snakelane/assets/images/thumb/_1.jpg"; imgs[10] = "/snakelane/assets/images/thumb/_19.jpg"; imgs[1] = "/snakelane/assets/images/thumb/_2.jpg"; imgs[11] = "/snakelane/assets/images/thumb/_20.jpg"; imgs[2] = "/snakelane/assets/images/thumb/_3.jpg"; imgs[12] = "/snakelane/assets/images/thumb/_21.jpg"; imgs[3] = "/snakelane/assets/images/thumb/_4.jpg"; imgs[13] = "/snakelane/assets/images/thumb/_22.jpg"; imgs[4] = "/snakelane/assets/images/thumb/_5.jpg"; imgs[14] = "/snakelane/assets/images/thumb/_23.jpg"; imgs[5] = "/snakelane/assets/images/thumb/_6.jpg"; imgs[15] = "/snakelane/assets/images/thumb/_24.jpg"; imgs[6] = "/snakelane/assets/images/thumb/_7.jpg"; imgs[16] = "/snakelane/assets/images/thumb/_25.jpg"; imgs[7] = "/snakelane/assets/images/thumb/_8.jpg"; imgs[17] = "/snakelane/assets/images/thumb/_26.jpg"; imgs[8] = "/snakelane/assets/images/thumb/_9.jpg"; imgs[18] = "/snakelane/assets/images/thumb/_27.jpg"; imgs[9] = "/snakelane/assets/images/thumb/_10.jpg"; imgs[19] = "/snakelane/assets/images/thumb/_28.jpg"; /* -----------------------------------------------------------------------------------------------------*/ var preload = []; // New array to hold the 'new' images. for(i = 0 ; i &lt; imgs.length; i++) // Loop through imgs array { preload[i] = new Image(); // Loop preload array and declare current index as a new image object. preload[i].src = imgs[i]; // Fill preload array with the images being looped from ims array. } i = 0; // Reset counter to 0. rotate(); // Execute rotate function to create slideshow effect. } // Function to perform change between pictures. function rotate() { pic.src = imgs[i]; // Change html element source to looping images (i === (imgs.length -1))?(i=0) : (i++); // counter equals imgs array length -1. setTimeout( rotate, 4000); // Sets the time between picture changes. (5000 milliseconds). } function init() { [].forEach.call(document.querySelectorAll('.pic'), function(el) { el.addEventListener('click', changeSource); }); function changeSource() { hidden = document.getElementById("hidden"); hidden.style.display = 'block'; newpic = this.src; var pic = document.getElementById("picbox"); pic.src = newpic; } } document.addEventListener("DOMContentLoaded", init, false); function stopSlide() { var hidden = document.getElementById("hidden"); hidden.style.visibility = 'hidden'; pause.style.display = 'none'; var play = document.getElementById("play"); play.style.display = 'block'; } </code></pre> <p>The <code>pause</code> and <code>play</code> statements are not relevant to my question, they simply hide the play button and show the pause button if the slideshow is running, and vice versa.</p>
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    1. USBartoszKP
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    1. COUse a `return` statement
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      1. POHow to stop a javascript function from within another function?
      1. USSushanth --
    2. COLooks like what you need to stop is the `setTimeout` in `rotate`.
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      1. POHow to stop a javascript function from within another function?
      1. USbfavaretto
    3. COThanks! how do I do that? can I stop the timeout with a statement in the stopSlide() function?
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