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练习题，(升序)排序简化

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-Otokaze-

#1 Created at ... [Delete] [Delete and Lock User] 
'use strict';

var arr = [10, 20, 1, 2];

// 升序
arr.sort((x, y) => x === y ? 0 : x < y ? -1 : 1);
console.log(arr); // [1, 2, 10, 20]

// 降序
arr.sort((x, y) => x === y ? 0 : x < y ? 1 : -1);
console.log(arr); // [20, 10, 2, 1]

曦瑞之端

#2 Created at ... [Delete] [Delete and Lock User]

arr.sort((x, y) => { return (x-y) });

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