03 2020 档案
摘要：let promisify = (fn, receiver) => { return (...args) => { return new Promise((resolve, reject) => { fn.apply(receiver, [...args, (err, res) => { retur
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摘要：var event = { items: {}, on: function (type, fn) { if (!this.items[type]) { this.items[type] = [] } this.items[type].push(fn) }, emit: function (type)
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摘要：快排算法： let quickSort = function (arr) { if (arr.length < 2) return arr let midValue = arr.splice(0, 1), left = [], right = [] arr.forEach(el => { el >
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