By Dan Mantyla
ISBN-10: 1784398225
ISBN-13: 9781784398224
Release the powers of useful programming hidden inside of JavaScript to construct smarter, cleanser, and extra trustworthy internet apps
About This Book
become aware of what useful programming is, why it's powerful, and the way it's utilized in JavaScript
comprehend and optimize JavaScript's hidden power as a real practical language
discover the easiest coding practices for real-world applications
Who This e-book Is For
If you're a JavaScript developer attracted to studying useful programming, searching for the quantum jump in the direction of studying the JavaScript language, or simply are looking to turn into a greater programmer mostly, then this booklet is perfect for you. it's geared toward programmers serious about constructing reactive frontend apps, server-side apps that wrangle with reliability and concurrency, and every thing in between.
In Detail
This is a fast moving advisor that can assist you to put in writing real-world purposes by using quite a lot of useful suggestions and styles.
The booklet first explores the center suggestions of sensible programming universal to all useful languages, with examples in their use in JavaScript. It's by means of a finished roundup of useful programming libraries for JavaScript that minimizes the load of digging deep into JavaScript to show a collection of instruments that makes sensible programming not only attainable yet hugely handy. The publication then rounds off with an outline of ways to successfully use and combine sensible programming with object-oriented programming.
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Additional resources for Functional Programming in JavaScript
Sample text
A simple trick to constrain the frame rate is to nest the requestAnimationFrame() function within a setTimeout() function. In the previous example, we can modify the animFrame() function to the following: function animFrame(){ setTimeout(function() { requestAnimationFrame(animFrame,canvas); onEachStep(); }, 1000/60); } 33 CHAPTER 2 N JAVASCRIPT AND HTML5 CANVAS BASICS This of course does not guarantee that the frame rate will be exactly 60 fps. One of the main problems is that the time interval between timer events actually includes the time it takes to execute all the code within the event handler on top of the specified delay.
That interval is called the wavelength of the wave. It is the distance between adjacent similar points, for example, the distance between successive crests. If we instead plot the sine function against time, the repeating interval is a time scale called the period of the wave. For example, if this were a ball that’s moving up and down, the period (denoted by the symbol T) would be the time it takes to return to its initial position. Let’s call this a cycle. 5 seconds. How many cycles does the ball complete in 1 second?
If we instead plot the sine function against time, the repeating interval is a time scale called the period of the wave. For example, if this were a ball that’s moving up and down, the period (denoted by the symbol T) would be the time it takes to return to its initial position. Let’s call this a cycle. 5 seconds. How many cycles does the ball complete in 1 second? Well, obviously 2. That’s how many half-seconds there are in a second. This is called the frequency of the motion (denoted by the symbol f).
Functional Programming in JavaScript by Dan Mantyla
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