js add html to element code example

Example 1: javascript remove element

//remove a dom element
var element = document.getElementById("someId");
	element.parentNode.removeChild(element);

//remove element from array
var colors=["red","green","blue","yellow"];
var blue=colors.splice(2, 1);//first arg is array index to remove
//colors is now ["red","green","yellow"]

Example 2: add element to body javascript

var elem = document.createElement('div');
elem.style.cssText = 'position:absolute;width:100%;height:100%;opacity:0.3;z-index:100;background:#000';
document.body.appendChild(elem);

Example 3: javascript append to paragraph

// In the JS script

var parElement = document.getElementById("myPar");
var textToAdd = document.createTextNode("Text to be added");
parElement.appendChild(textToAdd);

//In the HTML file

<p id="myPar"></p>

Example 4: how to add elements in javascript html

//adding 'p' tag to body

  var tag = document.createElement("p"); // <p></p>
  var text = document.createTextNode("TEST TEXT"); 
  tag.appendChild(text); // <p>TEST TEXT</p>
  var element = document.getElementsByTagName("body")[0];
  element.appendChild(tag); // <body> <p>TEST TEXT</p> </body>

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Javascript Example

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