Download Learning JavaScript: Add Sparkle and Life to Your Web Pages by Ethan Brown PDF

By Ethan Brown

If you’re a programmer new to JavaScript, or perhaps a newbie with very little programming adventure, this newest version of useful booklet deals whole, no-nonsense assurance of this crucial internet improvement language. studying JavaScript follows confirmed studying ideas that can assist you soak up the ideas at a simple velocity, so you’ll the best way to create strong and responsive functions in any browser. instead of easily train JavaScript as an crucial language, writer Ethan Brown (Web improvement with Node and convey) introduces useful and asynchronous programming ideas early and reinforces them usually. This ebook additionally provides equivalent choice to JavaScript’s use as a «traditional» language (with filesystem and console entry) and to its use as a browser-based language.

Learn the newest in JavaScript advancements, together with Ajax and JSON
Get concrete examples of universal JavaScript utilization patterns
Deal with problems of alternative browser implementations
Use most sensible practices for this complicated language

Show description

By Ethan Brown

If you’re a programmer new to JavaScript, or perhaps a newbie with very little programming adventure, this newest version of useful booklet deals whole, no-nonsense assurance of this crucial internet improvement language. studying JavaScript follows confirmed studying ideas that can assist you soak up the ideas at a simple velocity, so you’ll the best way to create strong and responsive functions in any browser. instead of easily train JavaScript as an crucial language, writer Ethan Brown (Web improvement with Node and convey) introduces useful and asynchronous programming ideas early and reinforces them usually. This ebook additionally provides equivalent choice to JavaScript’s use as a «traditional» language (with filesystem and console entry) and to its use as a browser-based language.

Learn the newest in JavaScript advancements, together with Ajax and JSON
Get concrete examples of universal JavaScript utilization patterns
Deal with problems of alternative browser implementations
Use most sensible practices for this complicated language

Show description

Read or Download Learning JavaScript: Add Sparkle and Life to Your Web Pages (3rd Edition) PDF

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Additional resources for Learning JavaScript: Add Sparkle and Life to Your Web Pages (3rd Edition)

Example text

Underscore is a module with no dependencies, so the output from npm is very brief; for some complex modules, you may see pages of text go by! 0 node_modules\underscore So where did this module actually get installed? If you look in your directory, you’ll see a new subdirectory called node_modules; any local modules you install will go in this directory. Go ahead and delete the node_modules directory; we’ll be re-creating it in a moment. As you install modules, you’ll want to keep track of them somehow; the modules you install (and use) are called dependencies of your project.

We’ll convert any code in es6 and public/es6 to ES5 code in dist and public/dist. We’ll be using a package called gulp-babel, so we start by installing it with npm install --save-dev gulp-babel. dest("public/dist")); }); Gulp uses the concept of a pipeline to do its work. js"). js files in es6, and any subdirectories thereof, no matter how deep. Then we pipe those source files to Babel, which is what transforms them from ES6 to ES5. The final step is to pipe the compiled ES5 to its destination, the dist directory.

Every HTML element can have an ID, and for the HTML to be valid (correctly formed), each ID must be unique. So now that we’ve created a canvas with the id “mainCanvas”, we can’t reuse that ID. Because of this, it’s recommended that you use IDs spar‐ ingly. We’re using one here because it’s often easier for beginners to deal with one thing at a time, and by definition, an ID can only refer to one thing on a page. css so our canvas stands out on the page. If you’re not familiar with CSS, that’s OK—this CSS is simply setting a width and height for our HTML element, and giving it a black border:4 #mainCanvas { width: 400px; height: 400px; border: solid 1px black; } 4 If you want to learn more about CSS and HTML, I recommend the Codecademy’s free HTML & CSS track.

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