Question

我需要在vanilla javascript中创建以下按钮：

<button class="etmkug-14 SuUwW">
    <span class="etmkug-16 ctwFJG">Mark All Read</span>
</button>

不确定如何创建和添加范围：

var button = document.createElement('button');
button.setAttribute('class','etmkug-14 SuUwW');
button.setAttribute('style','margin-left: 10px;');
button.setAttribute('id','mark-all-read');
button.addEventListener('click', function(event){
    .
    .
    .
}
var span = document.createElement('span');
span.setAttribute('class','etmkug-16 ctwFJG');
span.innerHTML = 'Mark All Read';
button.appendChild(span);                // Is this how it's done????

Answer 1

是的，它是如何完成的。您只需添加此行document.body.append(button);

即可

var button = document.createElement('button');
button.setAttribute('class','etmkug-14 SuUwW');
button.setAttribute('style','margin-left: 10px;');
button.setAttribute('id','mark-all-read');
var span = document.createElement('span');
span.setAttribute('class','etmkug-16 ctwFJG');
span.innerHTML = 'Mark All Read';
button.appendChild(span);    
document.body.append(button);

Answer 2

如果你感到懒惰，InnerHTML就是你的朋友;抓住一个容器并添加一些HTML。

var container = document.getElementById('container');
container.innerHTML = container.innerHTML + '<button class="etmkug-14 SuUwW"><span class="etmkug-16 ctwFJG">Mark All Read</span></button>';

Answer 3

let newButton = document.createElement('button');
newButton.setAttribute("id", "myNewButton");
newButton.className = "myClassName";
newButton.innerText = "clickMe";
newButton.addEventListener("click", clickMe);
document.body.appendChild(newButton);
function clickMe(){
    console.log("Hi! I  am a new Button.");
}

使用vanilla JavaScript创建Button

3 个答案: