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instaFilta - jQuery plugin for performing in-page filtering

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Imagine that you have a web page displaying a huge list of data. It might be hard for the user to scan through all that data to find the thing he/she is interested in. instaFilta is a jQuery plugin that uses the input of a text field to perform in-page filtering, hiding non-matching items as the user types. Optionally, it can also filter out complete sections (groups of items) if there are no matching items in that section. If you don’t use sections, you don’t need to do anything special, it will work fine without specifying so.

1. INCLUDE JS FILES

2. HTML

<input type="text" id="instafilta-field" placeholder="Type to filter"> <div class="section"> <h2 class="section-title">A</h2> <ul class="section-list"> <li class="section-item">Amy</li> <li class="section-item">Anakin Skywalker</li> <li class="section-item">Albert</li> <li class="section-item">Andy Panda</li> </ul> </div> <div class="section"> <h2 class="section-title">B</h2> <ul class="section-list"> <li class="section-item">Bob</li> <li class="section-item">Bonnie</li> <li class="section-item">Boogie Woogie</li> <li class="section-item">Barry</li> </ul> </div> <div class="section"> <h2 class="section-title">C</h2> <ul class="section-list"> <li class="section-item">Carrie Bradshaw</li> <li class="section-item">Carl</li> <li class="section-item">Cindy</li> <li class="section-item">Cameron</li> <li class="section-item">C-3PO</li> </ul> </div> <div class="section"> <h2 class="section-title">D</h2> <ul class="section-list"> <li class="section-item">Dave</li> <li class="section-item">Daryl</li> <li class="section-item">Donna</li> <li class="section-item">Danielle</li> </ul> </div> <div class="section"> <h2 class="section-title">E</h2> <ul class="section-list"> <li class="section-item">Eric</li> <li class="section-item">Emma</li> <li class="section-item">Eliot</li> <li class="section-item">Ed</li> </ul> </div> <div class="section"> <h2 class="section-title">F</h2> <ul class="section-list"> <li class="section-item">Frank</li> <li class="section-item">Fridah</li> <li class="section-item">Florian</li> <li class="section-item">Florence</li> </ul> </div> <div class="section"> <h2 class="section-title">G</h2> <ul class="section-list"> <li class="section-item">Georgie Porgie</li> <li class="section-item">Garth</li> <li class="section-item">Gillian</li> <li class="section-item">Gandalf the Grey</li> </ul> </div> <div class="section"> <h2 class="section-title">H</h2> <ul class="section-list"> <li class="section-item">Harry</li> <li class="section-item">Harriet</li> <li class="section-item">Helen</li> <li class="section-item">Hannibal "the cannibal"</li> </ul> </div> <div class="section"> <h2 class="section-title">I</h2> <ul class="section-list"> <li class="section-item">Ida</li> </ul> </div> <div class="section"> <h2 class="section-title">J</h2> <ul class="section-list"> <li class="section-item">Jacob</li> <li class="section-item">Jennifer</li> </ul> </div> <div class="section"> <h2 class="section-title">K</h2> <ul class="section-list"> <li class="section-item">Kodos</li> <li class="section-item">Kang</li> <li class="section-item">King</li> <li class="section-item">Kong</li> </ul> </div> <div class="section"> <h2 class="section-title">L</h2> <ul class="section-list"> <li class="section-item">Larry</li> <li class="section-item">Lana</li> <li class="section-item">Logan</li> <li class="section-item">Lonesome Cowboy</li> </ul> </div> <div class="section"> <h2 class="section-title">M</h2> <ul class="section-list"> <li class="section-item">Mega Man</li> <li class="section-item">Morgan</li> <li class="section-item">Mollie</li> </ul> </div> <div class="section"> <h2 class="section-title">N</h2> <ul class="section-list"> <li class="section-item">Nick</li> <li class="section-item">No Way Jose</li> <li class="section-item">Nelly</li> <li class="section-item">Nimda</li> </ul> </div> <div class="section"> <h2 class="section-title">O</h2> <ul class="section-list"> <li class="section-item">Ollie Williams</li> <li class="section-item">Om-nom</li> </ul> </div> <div class="section"> <h2 class="section-title">P</h2> <ul class="section-list"> <li class="section-item">Paul</li> <li class="section-item">Peter</li> <li class="section-item">Pierre</li> <li class="section-item">Patty</li> </ul> </div> <div class="section"> <h2 class="section-title">Q</h2> <ul class="section-list"> <li class="section-item">Q (from James Bond, you know?)</li> </ul> </div> <div class="section"> <h2 class="section-title">R</h2> <ul class="section-list"> <li class="section-item">Paul</li> <li class="section-item">Peter</li> <li class="section-item">Pierre</li> <li class="section-item">Patty</li> </ul> </div> <div class="section"> <h2 class="section-title">S</h2> <ul class="section-list"> <li class="section-item">Sammy</li> <li class="section-item">Silly</li> <li class="section-item">Sally</li> <li class="section-item">Sully</li> </ul> </div> <div class="section"> <h2 class="section-title">T</h2> <ul class="section-list"> <li class="section-item">Tyson</li> <li class="section-item">Terry</li> <li class="section-item">Taun-taun</li> <li class="section-item">Taylor</li> </ul> </div> <div class="section"> <h2 class="section-title">U</h2> <ul class="section-list"> <li class="section-item">Ursula</li> <li class="section-item">Uma</li> </ul> </div> <div class="section"> <h2 class="section-title">V</h2> <ul class="section-list"> <li class="section-item">Victor</li> <li class="section-item">Val</li> </ul> </div> <div class="section"> <h2 class="section-title">W</h2> <ul class="section-list"> <li class="section-item">Walter</li> <li class="section-item">Wayland</li> <li class="section-item">Walker</li> </ul> </div> <div class="section"> <h2 class="section-title">X</h2> <ul class="section-list"> <li class="section-item">Xerxes</li> </ul> </div> <div class="section"> <h2 class="section-title">Y</h2> <ul class="section-list"> <li class="section-item">You</li> </ul> </div> <div class="section"> <h2 class="section-title">Z</h2> <ul class="section-list"> <li class="section-item">Zaphod</li> </ul> </div>

3. JAVASCRIPT

$(function() $('#instafilta-field').instaFilta( targets: '.section-item', sections: '.section', markMatches: true ); );

4. Highlighting matching text

When filtering out list items, it might be valuable to highlight exactly what part of the text was matched. We can do this using the markMatches option. If set to true, the match will get wrapped by a span, having the matchCssClass option CSS class. Use this class to style the match within the item text.