JavaScript Patterns: Build Better Applications with Coding by Stoyan Stefanov

By Stoyan Stefanov

What is the most sensible strategy for constructing an software with JavaScript? This e-book is helping you solution that question with a variety of JavaScript coding styles and top practices. if you are an skilled developer trying to remedy difficulties concerning gadgets, capabilities, inheritance, and different language-specific different types, the abstractions and code templates during this advisor are perfect -- no matter if you are writing a client-side, server-side, or machine software with JavaScript. writer Stoyan Stefanov contains numerous examples for every trend in addition to sensible recommendation for imposing them.

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In this case you’re just defining the useful methods ahead of time. 2. You check if your custom property or method doesn’t exist already—maybe already implemented somewhere else in the code or already part of the JavaScript engine of one of the browsers you support. 3. You clearly document and communicate the change with the team. myMethod = function () { // implementation... }; } switch Pattern You can improve the readability and robustness of your switch statements by following this pattern: var inspect_me = 0, result = ''; switch (inspect_me) { case 0: result = "zero"; break; case 1: result = "one"; break; default: result = "unknown"; } The style conventions followed in this simple example are: • Aligning each case with switch (an exception to the curly braces indentation rule).

Constructor === Boolean); // true This behavior of the Object() constructor can lead to unexpected results when the value you pass to it is dynamic and not known until runtime. Again, in conclusion, don’t use new Object(); use the simpler and reliable object literal instead. say(); // "I am Adam" This new pattern looks very much like creating an object in Java using a class called Person. The syntax is similar, but actually in JavaScript there are no classes and Person is just a function. Here’s how the Person constructor function could be defined.

The benefit is that when you’re comfortable with it, you can use the same system to document code in any language. Writing to Be Read Writing the comments for the API doc blocks is not only a lazy way to provide reference documentation, but it also serves another purpose—improving code quality by making you revisit your code. Any writer or editor will tell you that editing is important: probably the most important step in producing a good book or article. Getting it down on paper is only the first step, the first draft.

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