當我添加“”時，我嘗試與我的 javascript 鏈接的按鈕 onlick 似乎不起作用或在我的 vs 代碼上突出顯示橙色

Question

我已經嘗試了一切以解決問題，甚至查看了我正在學習的教程視頻，但似乎無法正常工作。 甚至在互聯網上進行了檢查。 我添加了 javascript 代碼，所以你們可以看到我確實定義了它。 我對這一切都是新手，所以最好地解釋一下，您將不勝感激

  <html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"></link>
        <link rel="stylesheet" href="style.css">
        <title>Javascript Your Age In Days</title>
    </head>
    <body>
        <div class="container-1">
            <h2>Challenge 1: Your Age In Days</h2>
                <div class="flex-box-container-1">
                
            
                <div>
                    <button class="btn btn-primary" onclick='ageInDays()'>Click Here</button>
                </div>
            
                <div>
                    <button class="btn btn-danger">Reset</button>
                </div>
            
                <div class="flex-box-container-1">
                    <div id="flex-box-container-1"></div>
                </div>
                
                </div>
    
            </div>
        
        
        
         <script src="script.js"></script>
    
    </body>
    </html>
    
    
  
function ageInDays() {
    let birthYear = prompt("what year were you born...Good friend?");

}

Answer 1

它不起作用，因為您正在使用內聯腳本來調用ageInDays函數，但定義位於另一個文件中，當瀏覽器讀取內聯 JS 時，該文件尚未加載，因此有兩種方法可以解決此問題。

使用內聯腳本，這樣 JS 就已經與 HTML 一樣在瀏覽器上了

<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"></link>
        <link rel="stylesheet" href="style.css">
        <title>Javascript Your Age In Days</title>
    </head>
    <body>
        <div class="container-1">
            <h2>Challenge 1: Your Age In Days</h2>
                <div class="flex-box-container-1">
                <div>
                    <button class="btn btn-primary" onclick="ageInDays()">Click Here</button>
                </div>
                <div>
                    <button class="btn btn-danger">Reset</button>
                </div>
                <div class="flex-box-container-1">
                    <div id="flex-box-container-1"></div>
                </div>
                </div>
            </div>
         <script>
             function ageInDays() { let birthYear = prompt("what year were you born...Good friend?"); } 
         </script>
    </body>
    </html>

處理腳本文件中的所有內容

<html lang="en">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1.0">
        <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min.css"></link>
        <link rel="stylesheet" href="style.css">
        <title>Javascript Your Age In Days</title>
    </head>
    <body>
        <div class="container-1">
            <h2>Challenge 1: Your Age In Days</h2>
                <div class="flex-box-container-1">
                <div>
                    <button class="btn btn-primary" id="action">Click Here</button>
                </div>
                <div>
                    <button class="btn btn-danger">Reset</button>
                </div>
                <div class="flex-box-container-1">
                    <div id="flex-box-container-1"></div>
                </div>
                </div>
            </div>
         <script src="main.js"></script>
    </body>
    </html>

並在 main.js

const button = document.getElementById('action');
button.addEventListener('click', function(){
    let birthYear = prompt("what year were you born...Good friend?"); 
});

Answer 2

將此添加到您的script.js文件，並從您的按鈕中刪除onclick='ageInDays()' 。

let btn = document.querySelector(".btn-primary");
btn.addEventListener("click", ageInDays);

function ageInDays(){
  //code to be executed when you clicked the button
}

當我添加“”時，我嘗試與我的 javascript 鏈接的按鈕 onlick 似乎不起作用或在我的 vs 代碼上突出顯示橙色

問題描述

2 個解決方案

解決方案1
0 2020-09-08 03:10:10

解決方案2
0 2020-09-08 03:14:48

當我添加“”時，我嘗試與我的 javascript 鏈接的按鈕 onlick 似乎不起作用或在我的 vs 代碼上突出顯示橙色

問題描述

2 個解決方案

解決方案1 0 2020-09-08 03:10:10

解決方案2 0 2020-09-08 03:14:48

解決方案1
0 2020-09-08 03:10:10

解決方案2
0 2020-09-08 03:14:48