lodash's each not setting value for each item

Question

I'm using lodash's each function to set some property on each item of my collection.

L1 each(forms, form => form.isEditMode = false);

L2 each(forms, form => form.uuid = Math.random());

L1 doesn't work. L2 works.

Answer 1

L1 basically never runs after the first item because as per docs Iteratee functions may exit iteration early by explicitly returning false. and assignment of false means it returns false.

I was pulling my hair until I got it.