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1/25/15
Creating an image slide show (Two parts)
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How to create a basic slide show
Step 1: Get some images!
The first step, needless to say, is to first fetch the images you want to include in the slideshow
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"secondcar
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Imagine yourself as a car salesmen, and these three cars are the ones you are selling!
Step 2: Preload the images using JavaScript
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Preloading images is "necessary" in
a slide show, since the switching between images have to be instantaneous, without any delay:
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We've created three instances of the image object and stored them inside a JavaScript Array, each referring to one of the images that
make up the slide show
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Notice that the
entire code is inserted in the section of the page (Detailed discussion of preloading images can be found here)
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Notice how we gave the image a "ID" attribute
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Step 4: With everything in place, all we need now is a script that accesses the above image and changes the src of the image
periodically, creating a slide show
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1/2
1/25/15
Creating an image slide show (Two parts)
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e E e e t y d ) to access the image by, well, its ID attribute value
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The right hand side dynamically assigns a new src
(path) to the image from one of the image paths stored inside our JavaScript image array, thus changing the image
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Elements within a JavaScript Array are referenced based on their index position within the Array, starting at 0 for the
first element, 1 for the second etc
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We've preloaded the images, inserted the first image of the slideshow, and created the function necessary to change the path
associated with the image every few seconds
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How to create a basic slide show
3
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