Created
March 5, 2018 16:06
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| arr = Array.from("Hello world!"); | |
| arrLen = arr.length; | |
| arrMidLen = Math.floor(arrLen / 2); | |
| arr.forEach(function(v, i) { | |
| if (arrMidLen > i) { return } | |
| var f = arr[i]; | |
| var e = arr[arrLen - i - 1]; | |
| arr[i] = e; | |
| arr[arrLen - i - 1] = f; | |
| }); | |
| console.log(arr.join('')); // !dlrow olleH |
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