带标签的模版字符串（Tagged Templates）

const name = "why";
const age = 18;
const height = 1.88;
function foo(arr, arg1, arg2, arg3) {
  console.log(arr, arg1, arg2, arg3);
}
foo``;
//[ '' ] undefined undefined undefined
foo`my name is ${name},age is ${age},height is ${height}`;
//[ 'my name is ', ',age is ', ',height is ', '' ] why 18 1.88
foo`my name is ${name},double age is ${age * 2},height is ${height}`;
//[ 'my name is ', ',double age is ', ',height is ', '' ] why 36 1.88