SOURCE

var total = 30
var msg = passthru`The total is ${total}  (${total*1.05} with tax)`;

function passthru(literals) {
  var result = '';
  var i = 0;

  while (i < literals.length) {
    result += literals[i++];
    if (i < arguments.length) {
     // console.log(arguments[i])
      result += arguments[i];
    }
  }

  return result;
}
// console.log(msg)

function passthru1(literals, ...values) {
  var output = "";
  
  for (var index = 0; index < values.length; index++) {
     console.log(index)
     console.log(literals[index])
     console.log(values[index])
    output += literals[index] + values[index];
  }

  output += literals[index]
  return output;
}
//console.log`123`
console.log`${total}`