You may have a series of divs on your page which are named similarly such as div1, div2, div3 etc. Without declaring all of those in a jQuery selector, you can filter them as shown below.
HTML
<div id="box1"></div>
<div id="box2"></div>
<div id="box3"></div>
jQuery
// Starts with
$('div[id^=box]').on('click', function () {
// Do stuff here
})
// Ends with
$('div[id$=box]').on('click', function () {
// Do stuff here
})
// Contains with
$('div[id*=box]').on('click', function () {
// Do stuff here
})