Noite
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DDeno
Created by Noite on 10/25/2024 in #help
Deno adds "| undefined" to everything
When trying to call a value from an object or Record directly by its key, deno says object might be undefined for some reason. 
const objectList: Record<string, number[]> = {
  'itemOne': [1, 2, 3],
  'itemTwo': [4, 5, 6]
}

const numberArray: number[] = objectList['itemOne']
const objectList: Record<string, number[]> = {
  'itemOne': [1, 2, 3],
  'itemTwo': [4, 5, 6]
}

const numberArray: number[] = objectList['itemOne']
gives me 
Type 'number[] | undefined' is not assignable to type 'number[]'.
  Type 'undefined' is not assignable to type 'number[]'.deno-ts(2322)
Type 'number[] | undefined' is not assignable to type 'number[]'.
  Type 'undefined' is not assignable to type 'number[]'.deno-ts(2322)
why.
7 replies