Date

“Object” Methods

_.forIn(object, [iteratee=_.identity])

source npm package

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.

引入版本

0.3.0

参数
object (Object) : The object to iterate over.
[iteratee=_.identity] (Function) : The function invoked per iteration.

返回值
(Object) : Returns object.

示例
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).