Boolean()を使ってコードの見通しをよくする例
date
Feb 27, 2023
repo_url
slug
code-boolean
status
Published
summary
type
Post
thumbnail_url
tags
javascript
outer_link
冗長な書き方と改善
const checkString = ""
if(checkString) {
return true
} else {
return false
}
//↓
const checkString = ""
return Boolean(checkString)
const checkString = ""
const checkHoge = checkString ? true : false
//↓
const checkString = ""
const checkHoge = Boolean(checkString)
//二重否定の書き方もある↓
const checkHoge = !!checkString