String type of JavaScript

The string type is a wrapper type, there are three types of wrappers in JavaScript, boolean,number,string three, so you can build a string

var str=new String ("Hello world!");

Each instance of the string type has a length property, meaning how many characters the string contains

1. Character method

CharAt () and charCodeAt ():

1.1 charAt () returns the position of the given character in single-character way

var str=new String ("Hello World");

Alert (Str.charat (1));//e

1.2 charCodeAt () returns the Unicode character encoding for this character

2. How to manipulate strings

... Not finished!

String type of JavaScript