Using JavaScript create a div and also it will come top of the main div

This is my HTML template.

<div id='main'>
  <div id='1'>one</div>
</div>

I want dynamically create a new div with inside of main div and also it (new div>) will come to top 开发者_如何学JAVAof the main div. The answer look likes

<div id='main'>
  <div id='new'>new</div>
  <div id='1'>one</div>
</div>

How can this be achieved?

You can use jQuery's .prepend() method when selecting the #main element.

$('#main').prepend('<div id="new">new</div>');

You should note that it is not valid HTML4 to have an ID that starts with a number. So id="1" wouldn't be valid.

Changing it to a valid id like id="div_1", you could select that and use jQuery's .before() method instead.

$('#div_1').before('<div id="new">new</div>');

And in either case, remember to wrap your jQuery code like this so that it doesn't run until the DOM is ready.

$(function() {
    $('#main').prepend('<div id="new">new</div>');
});