通过将所有解决方案集中在一个地方来改进@Peter T 的帖子。
Element.insertAdjacentHTML()
function myFunction() {
window.document.body.insertAdjacentHTML( 'afterbegin', '<div id="myID" style="color:blue;"> With some data...</div>' );
}
function addElement(){
var elemDiv = document.createElement('div');
elemDiv.style.cssText = 'width:100%;height:10%;background:rgb(192,192,192);';
elemDiv.innerHTML = 'Added element with some data';
window.document.body.insertBefore(elemDiv, window.document.body.firstChild);
// document.body.appendChild(elemDiv); // appends last of that element
}
function addCSS() {
window.document.getElementsByTagName("style")[0].innerHTML += ".mycss {text-align:center}";
}
使用XPath
查找元素在 DOM 树中的位置,并将指定位置的指定文本插入到 XPath_Element。在浏览器控制台上尝试此代码。
function insertHTML_ByXPath( xpath, position, newElement) {
var element = document.evaluate(xpath, window.document, null, 9, null ).singleNodeValue;
element.insertAdjacentHTML(position, newElement);
element.style='border:3px solid orange';
}
var xpath_DOMElement = '//*[@id="answer-33669996"]';
var childHTML = '<div id="Yash">Hi My name is <B>\"YASHWANTH\"</B></div>';
var position = 'beforeend';
insertHTML_ByXPath(xpath_DOMElement, position, childHTML);