1.4

Each
A generic iterator function, to iterate over the elements in the result set.
each(callback)
Iterates over the elements in a set, such as the enumerable properties of an object, in arbitrary
order. For each distinct property, statements can be executed.
callback
A function. The callback function is passed the iteration index and the current element. In the
scope of the callback function, this refers to the current element.
Examples
The following two scripts demonstrate a simple iteration over the elements in the results (the
set of HTML elements that match the selector of the script).
This script sets the background color of each of the elements to red. (This is just to demonstrate
how this function works. It is easier to change the style of a set of HTML elements using the css
() function; see "css()" on page 191.)
results.each(function(index){
results[index].css('background-color','red');
});
The following script adds a random integer to each element in the result set.
results.each(function(index){
var test = Math.floor((Math.random() * 10) + 1);
this.html(test);
});
Selector Matched
element
Matched element after script
execution
p <p></p>
<p></p>
<p></p>
<p>3</p>
<p>1</p>
<p>7</p>
This script gets the row index (of the current element in the set) and puts it in a paragraph.
Page 197