javascript - If 和 Else 语句始终输出 If

Question

我正在摆弄以前存在的代码片段并遇到了问题。每当我尝试输入不应用 to If 语句的输入时，它总是给出 If 输出。另外，我希望您是否已发送到某个 URL(例如 Google)，而不是说“已批准”，但我不确定这两者是否有解决方案。

function myFunction() {
  var a = document.getElementById("text_a").value;

  if (a == "02035", "02048", "02067") {
    document.getElementById("answer").innerHTML = "Approved";
  } else {
    document.getElementById("answer").innerHTML = "Our service currently isn't available in your area! Try again soon!";
  }
}

<p>Enter Zip Code </p>
<input id="text_a" type="text" />
<p id="answer"></p>
<button onclick="myFunction()">Check</button>

Answer 1

可能您需要更改 if 语句中的条件:

if (a == "02035" || a == "02048" || a == "02067"){
  document.getElementById("answer").innerHTML="Approved";
}
else{
  document.getElementById("answer").innerHTML="Our service currently isn't available in your area! Try again soon!";
}