Uncaught SyntaxError：missing）在参数列表后-我看不到那里

Question

我正在制作小费计算器，但出现错误

function CalcTip(){
var bill = document.querySelector('#bill').value;
var people = document.querySelector('#people').value;
var button = document.querySelector('button');
var total = bill.value/people.value;                 
document.getElementById("#last").innerHTML = "$" + total;  
total = Math.round(total * 100) / 100;

}          

button.addEventListener（'click'，function（）{} calcTip（）;）;

Answer 1

错误在您的addEventListener上，应该是

button.addEventListener('click', function(){ calcTip(); });

Answer 2

您的代码中有几个错误。

这里是一个功能示例：

var button = document.getElementById("calculate");
button.addEventListener('click', CalcTip);

function CalcTip(){
  var bill = document.getElementById('bill');
  var people = document.getElementById('people');
  var total = parseInt(bill.value) / parseInt(people.value);                 
  total = Math.round(total * 100) / 100;
  
  document.getElementById("last").innerHTML = "$" + total;
}

<button type="button" id="calculate">Click Me!</button><br>

<input type="text" id="bill"><br>
<input type="text" id="people"><br>

<div id="last"></div>