如何使用JavaScript创建和样式一个div

如何使用JavaScript创建和样式(并追加到页面)一个div，内容?我知道有可能，但怎么做呢?

var div = document.createElement("div");
div.style.width = "100px";
div.style.height = "100px";
div.style.background = "red";
div.style.color = "white";
div.innerHTML = "Hello";
document.getElementById("main").appendChild(div);

<body>
<div id="main"></div>
</body>

var div = document.createElement("div");
div.style.width = "100px";
div.style.height = "100px";
div.style.background = "red";
div.style.color = "white";
div.innerHTML = "Hello";
document.getElementById("main").appendChild(div);
OR
document.body.appendChild(div);

使用父引用代替document.body

这取决于你怎么做。纯javascript:

var div = document.createElement('div');
div.innerHTML = "my <b>new</b> skill - <large>DOM maniuplation!</large>";
// set style
div.style.color = 'red';
// better to use CSS though - just set class
div.setAttribute('class', 'myclass'); // and make sure myclass has some styles in css
document.body.appendChild(div);

使用jquery做同样的事情非常容易:

$('body')
.append('my DOM manupulation skills dont seem like a big deal when using jquery')
.css('color', 'red').addClass('myclass');

干杯!

虽然这里的其他答案都可以，但我注意到您要求的是带有内容的div。这是我的版本和额外的内容。JSFiddle链接在底部。

JavaScript

(评论):

// Creating a div element
var divElement = document.createElement("Div");
divElement.id = "divID";
// Styling it
divElement.style.textAlign = "center";
divElement.style.fontWeight = "bold";
divElement.style.fontSize = "smaller";
divElement.style.paddingTop = "15px";
// Adding a paragraph to it
var paragraph = document.createElement("P");
var text = document.createTextNode("Another paragraph, yay! This one will be styled different from the rest since we styled the DIV we specifically created.");
paragraph.appendChild(text);
divElement.appendChild(paragraph);
// Adding a button, cause why not!
var button = document.createElement("Button");
var textForButton = document.createTextNode("Release the alert");
button.appendChild(textForButton);
button.addEventListener("click", function(){
    alert("Hi!");
});
divElement.appendChild(button);
// Appending the div element to body
document.getElementsByTagName("body")[0].appendChild(divElement);

HTML:

<body>
  <h1>Title</h1>
  <p>This is a paragraph. Well, kind of.</p>
</body>

CSS:

h1 { color: #333333; font-family: 'Bitter', serif; font-size: 50px; font-weight: normal; line-height: 54px; margin: 0 0 54px; }
p { color: #333333; font-family: Georgia, serif; font-size: 18px; line-height: 28px; margin: 0 0 28px; }

注意:CSS从Ratal Tomal中借用

JSFiddle: https://jsfiddle.net/Rani_Kheir/erL7aowz/

这个解决方案使用jquery库

$('#elementId').append("<div class='classname'>content</div>");

我喜欢做的另一件事是创建一个对象，然后循环遍历该对象并像这样设置样式，因为逐个编写每个样式可能会很繁琐。

var bookStyles = {
   color: "red",
   backgroundColor: "blue",
   height: "300px",
   width: "200px"
};
let div = document.createElement("div");
for (let style in bookStyles) {
 div.style[style] = bookStyles[style];
}
body.appendChild(div);

这将在函数或脚本标签中使用自定义CSS, classname为custom

 var board = document.createElement('div');
 board.className = "Custom";
 board.innerHTML = "your data";
 console.log(count);
 document.getElementById('notification').appendChild(board);

我有一个解决方案:

var div = '<div id="yourId" class="yourClass" yourAttribute="yourAttributeValue">blah</div>';

如果您希望属性和/或属性值基于变量:

var id = "hello";
var classAttr = "class";
var div = '<div id='+id+' '+classAttr+'="world" >Blah</div>';

然后，添加到正文后:

document.getElementsByTagName("body").innerHTML = div;

creatediv with id name

var divCreator=function (id){
newElement=document.createElement("div");
newNode=document.body.appendChild(newElement);
newNode.setAttribute("id",id);
}

添加文本到div

var textAdder = function(id, text) {
target = document.getElementById(id)
target.appendChild(document.createTextNode(text));
}

测试代码

divCreator("div1");
textAdder("div1", "this is paragraph 1");

输出

this is paragraph 1

你可以这样创建

board.style.cssText = "position:fixed;height:100px;width:100px;background:#ddd;"
document.getElementById("main").appendChild(board);

完整可运行代码段:

var board;
board= document.createElement("div");
board.id = "mainBoard";
board.style.cssText = "position:fixed;height:100px;width:100px;background:#ddd;"
    
document.getElementById("main").appendChild(board);

<body>
<div id="main"></div>
</body>

下面是一个使用一些漂亮的可重用DOM实用函数的小示例:

// DOM utility functions:
const
  elNew = (tag, prop) => Object.assign(document.createElement(tag), prop),
  els   = (sel, par) => (par ?? document).querySelectorAll(sel),
  el    = (sel, par) => (par ?? document).querySelector(sel);
// Task:
const elItem = elNew("div", {
  className: "item",
  textContent: "Hello, World!",
  onclick() {
    console.log(this.textContent);
  },
  style: `
    font-size: 2em;
    color: brown;
    background: gold;
  `
});
// Append it
el("body").append(elItem);

此外，您还可以使用Object.assign()为元素添加样式，例如:

// Utility functions
const css = (el, styles) => Object.assign(el.style, styles);
// Example:
css(elItem, { color: "blue", padding: "1rem" });

您可以使用下面的方法:

document.write()

这很简单，在下面的文档中我解释了

document.write("<div class='div'>Some content inside the div (It is styled!)</div>")

.div {
  background-color: red;
  padding: 5px;
  color: #fff;
  font-family: Arial;
  cursor: pointer;
}
.div:hover {
  background-color: blue;
  padding: 10px;
}
.div:hover:before {
  content: 'Hover! ';
}
.div:active {
  background-color: green;
  padding: 15px;
}
.div:active:after {
  content: ' Active! or clicked...';
}

<p>Below or above well show the div</p>
<p>Try pointing hover it and clicking on it. Those are tha styles aplayed. The text and background color changes.</p>

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