Transform from string array to hashmap in Lodash

Question

What is the most precise way to transform from this

["access","edit","delete"]

to this

{access:true, edit:true, update:true}

Currently i loop to assign each value in object but i wonder if lodash already provide function for this

Answer 1

Use reduce(). This can all be done with a simple one-liner, that doesn't require any libraries:

const input = ["access","edit","delete"];

console.log(
  input.reduce((obj, key) => { obj[key] = true; return obj; }, {})
);

With the new es6 spread syntax, you can even make this easier:

const input = ["access","edit","delete"];

console.log(
  input.reduce((obj, key) => ({...obj, [key]: true}), {})
);