I need to create a function which create a new object with all properties of in set to true, the function should create a new object.
How to do it with vanilla js? I can use deconstruction and latest JS.
const in = { ida:true, idb:false, idc:false, ide:true } result wanted
const out = { ida:true, idb:true, idc:true, ide:true } Well, you could use Object.keys and the spread operator to accomplish this:
const input = { ida: true, idb: false, idc: false, ide: true } const out = Object.keys(input).reduce((acc, key) => ({...acc, [key]: true}), {}); console.log(out)You could map all keys with an new object and false as value. Later assign them to a single object.
const inO = { ida: true, idb: false, idc: false, ide: true }, outO = Object.assign(...Object.keys(inO).map(k => ({ [k]: true }))); console.log(outO);
You can use a for..in loop which iterates over the keys of an object:
function setTrue(obj) { for (k in obj) obj[k] = true; } const o = { ida: true, idb: false, idc: false, ide: true } setTrue(o); console.log(o);