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characters

AngularJS: API: ng/filter/json

json

  1. - filter in module ng

允许你转换一个JavaScript对象到JSON字符串。

这个过滤器常用于调试。使用双花括号的绑定会自动转换成JSON。

用法

用于HTML模板绑定

{{ json_expression | json}}

用于JavaScript

$filter('json')(Object)

参数

参数 类型 详述
Object *

用于过滤的任何JavaScript对象 (包括数组和原始类型)。

返回值

string

JSON字符串。

示例

index.html
<pre>{{ {'name':'value'} | json }}</pre>
protractor.js
it('should jsonify filtered objects', Function() {
  expect(element(by.binding("{'name':'value'}")).getText()).toMatch(/\{\n  "name": ?"value"\n}/);});
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