关于javascript:你不知道的那些字符串方法

anchor / small / big / fontsize / blink / bold / italics / strike
都是用来创立标签

// 增加锚点用的
const txt="context";
const htmla = txt.anchor("maodian");
console.log(htmla); // <a name="maodian">context</a>

const worldString = 'Hello, world';
console.log(worldString.small());     // <small>Hello, world</small>
console.log(worldString.big());       // <big>Hello, world</big>
console.log(worldString.fontsize(7)); // <font size=7>Hello, world</font>
// 用来润饰字符串
const worldString = 'Hello, world';
console.log(worldString.blink());   // <blink>Hello, world</blink>
console.log(worldString.bold());    // <b>Hello, world</b>
console.log(worldString.italics()); // <i>Hello, world</i>
console.log(worldString.strike());  // <strike>Hello, world</strike>

at / charAt / charCodeAt

// 传入角标，返回一个新的字符串
const txt="text";
const txt1= txt.at(2);
console.log(txt,txt1); // text x

const txt="text";
const txt1= txt.charAt(2);
console.log(txt,txt1); // text x

// charCodeAt() 办法返回 0 到 65535 之间的整数，示意给定索引处的 UTF-16 代码单元
const txt="text";
const txt1= txt.charCodeAt(2);
console.log(txt,txt1); // text 120

codePointAt

// codePointAt() 办法返回 一个 Unicode 编码点值的非负整数。const txt="text";
const txt1= txt.codePointAt();
console.log(txt1); // 116

concat

// concat 字符串链接。const txt="text";
const txt1= "text2";
console.log(txt.concat(txt1)); // texttext2

吃饭回来持续~