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forIn

_.forIn(iteratee, object) # Ⓢ [Ⓣ][1] Ⓝ

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.

Since​

0.3.0

Arguments​

  1. iteratee (Function): The function invoked per iteration.
  2. object (Object): The object to iterate over.

Returns​

(Object): Returns object.

Example​

function Foo() {
  this.a = 1;
  this.b = 2;
}

Foo.prototype.c = 3;

_.forIn(function(value, key) {
  console.log(key);
}, new Foo);
// => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).