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rawnly/swapCase.js

Created August 27, 2018 10:27
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swapCase.js
const swapCase = (str) => str.split('').map(char => {
if ( char.toLowerCase() == char ) return char.toUpperCase()
if ( char.toUpperCase() == char ) return char.toLowerCase()
return char;
}).join('')
// Usage
swapCase("Hello World") //=> "hELLO wORLD"
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