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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

By : Ray Rischpater
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The JavaScript JSON Cookbook

The JavaScript JSON Cookbook

1 (2)
By: Ray Rischpater

Overview of this book

If you're writing applications that move structured data from one place to another, this book is for you. This is especially true if you've been using XML to do the job because it's entirely possible that you could do much of the same work with less code and less data overhead in JSON. While the book's chapters make some distinction between the client and server sides of an application, it doesn't matter if you're a frontend, backend, or full-stack developer. The principles behind using JSON apply to both the client and the server, and in fact, developers who understand both sides of the equation generally craft the best applications.
Table of Contents (12 chapters)
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11
Index

Generating JSON on Android

JSONObject also supports setter methods to initialize data in a JSON map. With these methods, you can assign data to a JSON object and then get the JSON representation by invoking its toString method.

How to do it…

Here's a simple example:

import org.JSON.JSONObject;

JSONObject data = new JSONObject();
data.put("call", "kf6gpe-7");
data.put("lat", 37.40150);
data.put("lng", -122.03683);
String json = data.toString();

How it works…

The polymorphic put method can take an integer, long integer, object, Boolean, or double, assigning the slot you name the value you specify.

The JSONObject class defines the toString method, which takes an optional number of spaces to indent nested structures for pretty-printed JSON. If you don't pass this indent, or pass 0, the implementation encodes the JSON in as compact a manner as possible.

There's more…

There's also the putOpt method, which takes any subclass...

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