04字符串拓展-es6

# 字符串拓展

//for of 字符串遍历
let str = "hello world"
for(s of str){
  console.log(s)
}

//includes 返回布尔值，表示是否找到了参数字符串 
let str = "hello world"
console.log(str.includes("hello"))//true

//repeat 方法返回一个新字符串，表示将原字符串重复n次
let str = "hello"
console.log(str.repeat(2))//hellohello

//模版字符串
let str = `hello world`

let str = `飞流直
下三千尺`
console.log(str)

let s = "world"
let str = "hello"+s
console.log(str)

let s = "world"
let str = `hello ${s}`
console.log(str)

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[!cogs]

%accordion% for of 字符串遍历 %accordion%

let str = "hello world"
for (idx of str) {
    console.log(idx);
}

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%/accordion%

# 模版字符串

let str = `hello
world`
console.log(str); 
                //答案：    //hello
                                //world

let a = "hello"
let b = "world"
console.log(`${a}${b}`);  //helloworld

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编辑

上次更新: 2022/04/24, 13:33:34

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