assign

assign(target, source)

Merges properties from source object into target object, creating a new object.

Looser version of merge - assign allows you to redefine keys and add new properties.

data-first

assign({ a: 1, b: 2 }, { b: 3, c: 4 }); // { a: 1, b: 3, c: 4 }

data-last

pipe({ a: 1, b: 2 }, assign({ b: 3, c: 4 })); // { a: 1, b: 3, c: 4 }