convert number or string to ASCII in js ASCII dictionary generator // const dict = `abcdefghijklmnopqrstuvwxyz`; const begin = `a`.charCodeAt(); const end = `z`.charCodeAt(); let dict = ``; for (let i = begin; i < end; i++) { dict += String.fromCodeP
前几天整理了javascript中Array方面的知识,但是String中的一些方法多多少少和Array里的方法有些类似容易混淆,就顺便连同String所在的包装类一起整理一下,希望可以帮助到初学者,同时也算是知识的一个回顾总结. 引子:实际上,每当读取一个基本类型值的时候,后台就会创建一个对应的基本包装类型的对象,从而让我们能够调用一些方法来操作这些数据. var s1='some text'; var s2=s1.substring(2);//'me text' 基本类型不是对象,因而从逻辑
Given a list of non negative integers, arrange them such that they form the largest number. For example, given [3, 30, 34, 5, 9], the largest formed number is 9534330. Note: The result may be very large, so you need to return a string instead of an i
C++进行int to string和string to int 下面方法一存在内存泄露 #include<strstream>void main(){ std::strstream ss; int n = 2; ss<<n; std::string str = ss.str(); } 这个方法可以, 好用 #include<sstream>void main(){ std::stringstream ss; int n = 2; ss<<n; std::s
// number -> string // toString() /* var num = 10; var res = num.toString(); alert(typeof (num)); alert(typeof (res)); */ // 加一个空格 /* var num = 10; var res = num + "" alert(num + ", " + typeof (num)); alert(res + ", " + ty