By Lindsay Bassett
ISBN-10: 1491929480
ISBN-13: 9781491929483
What's JavaScript item Notation (JSON) and the way are you able to positioned it to paintings? This concise consultant is helping busy IT pros wake up and working speedy with this renowned information interchange structure, and gives a deep figuring out of ways JSON works. writer Lindsay Bassett starts with an summary of JSON syntax, information kinds, formatting, and safety issues sooner than exploring the various methods you could follow JSON today.
From net APIs and server-side language libraries to NoSQL databases and client-side frameworks, JSON has emerged as a conceivable replacement to XML for changing information among assorted structures. when you've got a few programming event and comprehend HTML and JavaScript, this is often your book.
Learn why JSON syntax represents facts in name-value pairs
Explore JSON information varieties, together with item, string, quantity, and array
Find out how one can wrestle universal safeguard concerns
Learn how the JSON schema verifies that info is formatted correctly
Examine the connection among browsers, net APIs, and JSON
Understand how internet servers can either request and create data
Discover how jQuery and different client-side frameworks use JSON
Learn why the CouchDB NoSQL database makes use of JSON to shop facts
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Extra resources for Introduction to JavaScript Object Notation: A To-the-Point Guide to JSON
Sample text
This object has special properties such as requireType (a string containing error types such timeout, nodefine, scripterror) and requireModules (an array of module IDs affected by the error). requireModules ); }); In a well-grained design, modules are numerous and are allocated to a directory tree. In order to avoid relative path computation every time, you can configure the script loader once. baz ); }); This gives a bonus. Now if we decided to change a module file name, we do not need to modify every other module that requires it.
Log( foo() ); // foo We exported a function and came with the import. This could also be a class or an object. In AMD, we receive exports as callback arguments, and in CommonJS, as local variables. Though ES6 doesn't export values, but it exports the so called bindings (references) that are immutable. You can read their values, but if you try changing them, you get a type error. log( bar ); // baz bar = "qux"; // TypeError The module loader API In addition to declarative syntax in a separate specification (https://github.
This must be a storage that has the getItem method to retrieve stored values and the setItem method to set them. aKey = "value"). bar ); // baz Summary This chapter gives practices and tricks on how to use the JavaScript core features for the maximum effect. In the next chapter, we will talk about module concepts and we will do a walkthrough on scopes and closures. The next chapter will explain the scope context and the ways to manipulate it. [ 29 ] Modular Programming with JavaScript Engineering in general is all about splitting large tasks into small ones and composing the solutions of these tasks in a system.
Introduction to JavaScript Object Notation: A To-the-Point Guide to JSON by Lindsay Bassett
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