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ahy4/t,f->-1,+1

Created March 9, 2017 13:36
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t,f->-1,+1
// bool*2-1
let ary = [1,2,3];
ary.sort((a, b) => (a>b)*2-1); // 小さい順
console.log(ary);
ary.sort((a, b) => a-b); // 小さい順
console.log(ary);
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