Given a jQuery object that represents a set of DOM elements, the .next() method allows us to search through the immediately following sibling of these elements in the DOM tree and construct a new jQuery object from the matching elements.
The method optionally accepts a selector expression of the same type that we can pass to the $() function. If the immediately following sibling matches the selector, it remains in the newly constructed jQuery object; otherwise, it is excluded.
Consider a page with a simple list on it:
<ul> <li>list item 1</li> <li>list item 2</li> <li class="third-item">list item 3</li> <li>list item 4</li> <li>list item 5</li> </ul>
If we begin at the third item, we can find the element which comes just after it:
$( "li.third-item" ).next().css( "background-color", "red" );
The result of this call is a red background behind item 4. Since we do not supply a selector expression, this following element is unequivocally included as part of the object. If we had supplied one, the element would be tested for a match before it was included.
A string containing a selector expression to match elements against.
Find the very next sibling of each disabled button and change its text "this button is disabled".
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>next demo</title>
<style>
span {
color: blue;
font-weight: bold;
}
button {
width: 100px;
}
</style>
<script src="https://code.jquery.com/jquery-1.10.2.js"></script>
</head>
<body>
<div><button disabled="disabled">First</button> - <span></span></div>
<div><button>Second</button> - <span></span></div>
<div><button disabled="disabled">Third</button> - <span></span></div>
<script>
$( "button[disabled]" ).next().text( "this button is disabled" );
</script>
</body>
</html>
Find the very next sibling of each paragraph. Keep only the ones with a class "selected".
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>next demo</title> <script src="https://code.jquery.com/jquery-1.10.2.js"></script> </head> <body> <p>Hello</p> <p class="selected">Hello Again</p> <div><span>And Again</span></div> <script> $( "p" ).next( ".selected" ).css( "background", "yellow" ); </script> </body> </html>
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