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- let a = 'abc';
- let b = 'ced';
- let c = null;
- c = void(c = a, a = b, b = c);
- // console.log(a, b, c);
- // console.log(typeof c);
- console.log(a, b);
- b = [a, a = b][0]; // swap
- [a,b].forEach(function (i, v, o) {
- a = o[0];
- b = o[1];
- });
- console.log(a, b);
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