Scenario
We are testing if n is null or undefined or some other non falsy value and want a shorter version of this.
const boo = n ? n : 'somethingelse';Approach
Use the nullish coalescing operator.
const foo = n ?? 'somethingelse';Given the usage context could also do (As Jon pointed out in the comments), all though using the ?? operator is more strict.
const foo = n || 'somethingelse';One thing to note here is that we know, based on the context ( As defined in the scenario), that foo is going to always be null , undefined , or somethingelse and this is important semantically.
