Lets say I've got the following:
let key1 = 'firstkey'
let key2 = 'secondkey'
let obj = {}
Now I can set a key on obj using a dynamic key as:
obj[key1]= 'randomvalue' // Equals to obj: { firstkey: 'randomvalue' }
there is a quick way of writing this:
obj[key1][key2] = 'randomvalue' // Should equal to obj: { firstkey: { secondkey: 'randomvalue'} }
Without needing to previously check if the nested property key1 actually exists?
Option 1, using the spread operator
let key1 = "firstkey";
let key2 = "secondkey";
let obj = {};
obj[key1] = { ...obj[key1], [key2]: "randomvalue" };
console.log(obj);Option 2, use Lodash.set
_.set(obj, [key1, key2], "randomvalue");