jQuery append() vs appendChild()

Question

Here's some sample code:

function addTextNode(){
    var newtext = document.createTextNode(" Some text added dynamically. ");
    var para = document.getElementById("p1");
    para.appendChild(newtext);
    $("#p1").append("HI");
}

<div style="border: 1px solid red">
    <p id="p1">First line of paragraph.<br /></p>
</div>

What is the difference between append() and appendChild()?
Any real time scenarios?

Answer 1

The main difference is that appendChild is a DOM method and append is a jQuery method. The second one uses the first as you can see on jQuery source code

append: function() {
    return this.domManip(arguments, true, function( elem ) {
        if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
            this.appendChild( elem );
        }
    });
},

If you're using jQuery library on your project, you'll be safe always using append when adding elements to the page.