Lodash best of function


Reduce a collection to a single value by applying a function (a reducer to all collection values)


Useful to create map data structrure from arrays


You want all the keys of an object as array? No problem _.keys!


You have a map and want the inverse (the key becomethe value & vice versa). It is one usage of _.invert


Useful to test if a string is in an array of strings for examples. A sort of inArray function….


Good to produce grouped display, you have an array on object, and it can group them by one of its properties.

Written on October 11, 2017