Longest Palindromic Substring
LeetCode題目: 5. Longest Palindromic Substring My solution: /** * @param {string} s * @return {string} */ let longestPalindrome = s => { if(s.lengt...
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Longest Substring Without Repeating Characters
LeetCode題目: 3. Longest Substring Without Repeating Characters My solution: /** * @param {string} s * @return {number} */ let lengthOfLongestSubstring = ...
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Two Sum
LeetCode題目: 1. Two Sum My solution: /** * @param {number[]} nums * @param {number} target * @return {number[]} */ let twoSum = function(nums, target) {...
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解決callback hell的新方法Promise
//方法一: 使用Promise的then方法 let fakeAjax = (url, sec) => new Promise((resolve, reject) => { setTimeout(() => { resolve(`Ajax ${url} OK!`); ...
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arguments、callee、caller是什麼?
//arugumets是個神奇的語法，就算定義的function括號裡面不設定參數，arguments還是會儲存呼叫自己函式時裡面所帶的參數，是以類似陣列的物件儲存，此語法只能在function內使用。 function child() { console.log("(arguments)呼叫ch...
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