Update extendHex.md

This commit is contained in:
David Wu
2017-12-17 18:18:50 +01:00
committed by GitHub
parent f7abe2815e
commit 6af20ae297

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@ -6,7 +6,7 @@ Use `Array.map()`, `split()` and `Array.join()` to join the mapped array for con
`Array.slice()` is used to remove `#` from string start since it's added once.
```js
const extendHex = shortHex =>
'#' + shortHex.slice(shortHex.startsWith('#') ? 1 : 0).split().map(x => x+x).join()
'#' + shortHex.slice(shortHex.startsWith('#') ? 1 : 0).split('').map(x => x+x).join('')
// convertHex('#03f') -> '#0033ff'
// convertHex('05a') -> '#0055aa'
```