8471 shaares
203 private links
203 private links
const productIds = [123, 456, undefined, 789]
const products = productIds
.map(getProduct)
.filter((item): item is Product => item !== undefined)const productIds = [123, 456, undefined, 789]
const products = productIds
.map(getProduct)
.filter((item): item is Product => item !== undefined)
