JavaScript 三元运算符-在线运行代码案例-大卫编程网

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<!DOCTYPE html>
<html>
<title>JavaScript 三元运算符示例 - 基础教程(div.cn)</title>
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<body>
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<p>在输入框中输入您的年龄：</p>
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<input type="number" id="myInp" value="22">
<button type="button" onclick="checkStatus()">Check</button>
<p id="para"></p>
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<script>
function checkStatus() {
  var age = document.getElementById("myInp").value;
  var status = (age >= 18) ? "adult" : "minor";
  document.getElementById("para").innerHTML = status;
}
</script>
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</body>
</html>