$parse

$parseProvider
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.name).toEqual('newValue');
expect(getter(context, locals)).toEqual('local');

Usage

$parse(expression);

Arguments

Param	Type	Details
expression	`string`	String expression to compile.

Returns

function(context, locals)

a function which represents the compiled expression:

context â {object} â an object against which any expressions embedded in the strings are evaluated against (typically a scope object).
locals â {object=} â local variables context object, useful for overriding values in context.

The returned function also has the following properties:
- literal â {boolean} â whether the expression's top-level node is a JavaScript literal.
- constant â {boolean} â whether the expression is made entirely of JavaScript constant literals.
- assign â {?function(context, value)} â if the expression is assignable, this will be set to a function to change its value on the given context.

Links:

https://docs.angularjs.org/api/ng/service/$parse

doc_AngularJS

2025-01-10 15:47:30

Comments