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SolidZORO/reverse_char_in_string.js

Last active March 18, 2018 02:51
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reverse char in string
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reverse_char_in_string.js
const source = '(a,(b,(c,(d,(e,(f))))))';
const sourceList = source.split('');
const charList = [];
const keyList = [];
// Find Char & Key
sourceList.map((char, i) => {
if (/[a-z]/i.test(char)) {
charList.push(char);
keyList.push(i);
}
});
// Replace sourceList String
keyList.map((key, i) => {
sourceList[key] = charList.reverse()[i];
});
// (a,(b,(c,(d,(e,(f))))))
console.log(source);
// (f,(b,(d,(d,(b,(f))))))
console.log(sourceList.join(''));
// @see https://www.v2ex.com/t/438930
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