6-5 字符串扩展 放松模板字符串转义序列的语法限制

放松了模板字符串转义序列的语法限制

const foo = (a, b, c, d) =>{
  console.log(a)
  console.log(b)
  console.log(c)
  console.log(d)
}
// foo(1, 2, 3, 4)
const name = 'uu'
const age = 4
foo`这是${name}, 他的年龄是${age}岁`



const foo = arg => {
  console.log(arg)
}
foo`\u{61} and \u{62}`
foo`\u{61} and \unicode`

let srt = `\u{61} and \unicode`