40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
|
var baseFor = require('./_baseFor'),
|
||
|
|
castFunction = require('./_castFunction'),
|
||
|
|
keysIn = require('./keysIn');
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Iterates over own and inherited enumerable string keyed properties of an
|
||
|
|
* object and invokes `iteratee` for each property. The iteratee is invoked
|
||
|
|
* with three arguments: (value, key, object). Iteratee functions may exit
|
||
|
|
* iteration early by explicitly returning `false`.
|
||
|
|
*
|
||
|
|
* @static
|
||
|
|
* @memberOf _
|
||
|
|
* @since 0.3.0
|
||
|
|
* @category Object
|
||
|
|
* @param {Object} object The object to iterate over.
|
||
|
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
||
|
|
* @returns {Object} Returns `object`.
|
||
|
|
* @see _.forInRight
|
||
|
|
* @example
|
||
|
|
*
|
||
|
|
* function Foo() {
|
||
|
|
* this.a = 1;
|
||
|
|
* this.b = 2;
|
||
|
|
* }
|
||
|
|
*
|
||
|
|
* Foo.prototype.c = 3;
|
||
|
|
*
|
||
|
|
* _.forIn(new Foo, function(value, key) {
|
||
|
|
* console.log(key);
|
||
|
|
* });
|
||
|
|
* // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
|
||
|
|
*/
|
||
|
|
function forIn(object, iteratee) {
|
||
|
|
return object == null
|
||
|
|
? object
|
||
|
|
: baseFor(object, castFunction(iteratee), keysIn);
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = forIn;
|