Function assignIn

This method is like assign except that it iterates over own and inherited source properties.

Note: This method mutates object.

Since

5.5.0

Alias

extend

See

[[assign]]

Example

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

function Bar() {
  this.c = 3;
}

Foo.prototype.b = 2;
Bar.prototype.d = 4;

assignIn({ 'a': 0 }, new Foo, new Bar);
// => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
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