jQuery - selecting elements from inside a element

Question

let\'s say I have a markup like this:

  ...
  
    ...
  
  ...

and

Answer 1

You can use find option to select an element inside another. For example, to find an element with id txtName in a particular div, you can use like

var name = $('#div1').find('#txtName').val();

Answer 2

....but $('span', $('#foo')); doesn't work?

This method is called as providing selector context.

In this you provide a second argument to the jQuery selector. It can be any css object string just like you would pass for direct selecting or a jQuery element.

eg.

$("span",".cont1").css("background", '#F00');

The above line will select all spans within the container having the class named cont1.

DEMO

Answer 3

Have a look here -- to query a sub-element of an element:

$(document.getElementById('parentid')).find('div#' + divID + ' span.child');

Answer 4

Why not just use:

$("#foo span")

or

$("#foo > span")

---

$('span', $('#foo')); works fine on my machine ;)

Answer 5

both seem to be working.

see fiddle: http://jsfiddle.net/maniator/PSxkS/

Answer 6

You can use any one these [starting from the fastest]

$("#moo") > $("#foo #moo") > $("div#foo span#moo") > $("#foo span") > $("#foo > #moo")

Take a look