我目前正在嘗試從表單捕獲輸入數(shù)據(jù)并將該數(shù)據(jù)存儲(chǔ)到對象數(shù)組中，然后該對象數(shù)組可以匯總控制臺(tái)中捕獲的數(shù)據(jù)。最重要的是，我嘗試按照我的作業(yè)說明運(yùn)行該函數(shù)，使用傳統(tǒng)的 DOM 事件處理程序來存儲(chǔ)該數(shù)據(jù)。JS 的最終目標(biāo)是使用 var t 通過 ID 'contactSubButton' 獲取提交按鈕的元素，并運(yùn)行函數(shù) contactInfo onsubmit...但是，無論我嘗試什么，我都會(huì)在控制臺(tái)的“t.addEventListener”行中收到此消息......Uncaught TypeError: Cannot read property 'addEventListener' of nullvar t = document.getElementById("contactSubButton");t.addEventListener('click', contactInfo());function contactInfo(fName, lName, email, country, subject) {  fName = document.getElementById('fname').value;  lName = document.getElementById('lname').value;  email = document.getElementById('email').value;  country = document.getElementById('country').value;  subject = document.getElementById('subject').value;  for (i = 0;; i++) {    var subInfo = [fName, lName, email, country, subject]  }  console.log('Your submission details are:' < br > 'First Name: ' + fName)}<div id="form">  <form>    <label for="fname">First Name</label>    <input type="text" id="fname" name="firstname" placeholder="Your first name...">    <label for="lname">Last Name</label>    <input type="text" id="lname" name="lastname" placeholder="Your last name....">    <label for="email">Email Address</label>    <input type="email" id="email" name="email" placeholder="Please enter your email...">    <label for="country">Country</label>    <select id="country" name="country">      <option value="usa">United States</option>      <option value="canada">Canada</option>      <option value="mexico">Mexico</option>    </select>    <label for="subject">Subject</label>    <textarea id="subject" name="subject" placeholder="How can we help?"></textarea>    <input type="submit" value="Submit" id="contactSubButton">    <input type="reset" value="Reset Form">  </form></div>