12 lines
444 B
Markdown
12 lines
444 B
Markdown
### 3DigHexcode to 6DigHexcode
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Use `Array.map()`, `split()` and `Array.join()` to join the mapped array for converting a three-digit RGB notated hexadecimal colorcode to the six-digit form.
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```js
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const convertHex = shortHex =>
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shortHex[0] == '#' ? ('#' + shortHex.slice(1).split('').map(x => x+x).join('')) :
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('#' + shortHex.split('').map(x => x+x).join(''));
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// convertHex('#03f') -> '#0033ff'
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// convertHex('05a') -> '#0055aa'
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```
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