Alphabetically sorts the characters in a string.

Use the spread operator (...), Array.prototype.sort() and String.localeCompare() to sort the characters in str, recombine using String.prototype.join('').

代码片段

const sortCharactersInString = str => [...str].sort((a, b) => a.localeCompare(b)).join('');

使用样例

sortCharactersInString('cabbage'); // 'aabbceg'