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ES6模板字符串
const obj = {
name: 'zj',
age: 18
}
const str = `我的名字叫${obj.name},今年${obj.age}岁`
console.log(str)
模板字符串replace实现
function replace(desc) {
return desc.replace(/\$\{([^}]+)\}/, function (mathch, key) {
return key
})
}
console.log(replace(str))
自定义模板字符串
function desc(strings, ...args) {
let result = ''
for (let i in args) {
result += strings[i] + args[i]
}
return result + strings[strings.length - 1]
}
const describe = desc`我的名字叫${obj.name},今年${obj.age}岁`
console.log(describe)