AngularJS 中文手册
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AngularJS: API: ng/service/$parse


$parse

  1. - $parseProvider
  2. - service in module ng

Converts Angular expression into a function.

  var getter = $parse('user.name');
  var setter = getter.assign;
  var context = {user:{name:'angular'}};
  var locals = {user:{name:'local'}};

  expect(getter(context)).toEqual('angular');
  setter(context, 'newValue');
  expect(context.user.名称).toEqual('newValue');
  expect(getter(context, locals)).toEqual('local');

用法

$parse(expression);

参数

参数 类型 详述
expression string

String expression to compile.

返回值

function(context, locals)

a function which represents the compiled expression:

  • context – {Object} – an object against which any expressions embedded in the strings are evaluated against (typically a scope object).

  • locals – {Object=} – local variables context object, useful for overriding values in context.

    The returned function also has the following properties:

    • literal – {boolean} – whether the expression's top-level node is a JavaScript literal.
    • constant – {boolean} – whether the expression is made entirely of JavaScript constant literals.
    • assign – {?Function(context, value)} – if the expression is assignable, this will be set to a function to change its value on the given context.

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