jquery-json插件

最新推荐文章于 2024-08-20 09:01:04 发布

zhengbo0

最新推荐文章于 2024-08-20 09:01:04 发布

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本文介绍了一个 jQuery 插件，该插件提供了方便的方法来实现 JavaScript 对象与 JSON 数据之间的转换。包括序列化对象为 JSON 格式、从 JSON 字符串中解析出对象等功能。此外还提供了一些辅助函数，如安全解析 JSON 和字符串引用。

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This plugin makes it simple to convert to and from JSON:

var thing = { plugin: 'jquery-json', version: 2.4 };

var encoded = $.toJSON( thing );
// '{"plugin":"jquery-json","version":2.4}'
var name = $.evalJSON( encoded ).plugin;
// "jquery-json"
var version = $.evalJSON(encoded).version;
// 2.4

Most people asked me why I would want to do such a thing, which boggles my mind. Javascript makes it relatively easy to convert from JSON, thanks to eval(), but converting to JSON is supposedly an edge requirement.

This plugin exposes four new methods onto the (root) jQuery object:

toJSON: Serializes a javascript object, number, string, or array into JSON.
evalJSON: Converts from JSON to Javascript, quickly, and is trivial.
secureEvalJSON: Converts from JSON to Javascript, but does so while checking to see if the source is actually JSON, and not with other Javascript statements thrown in.
quoteString: Places quotes around a string, and intelligently escapes any quote, backslash, or control characters.