Learn how to filter a DIV element based on it's class name.
Last active
July 21, 2020 21:22
-
-
Save amelieykw/6ebce93664425bb2a125a5375eafcc3d to your computer and use it in GitHub Desktop.
[How TO - Filter DIV Elements] #w3school #How TO -#Filter-Elements #HTML #CSS #javascript
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <style> | |
| .filterDiv { | |
| float: left; | |
| background-color: #2196F3; | |
| color: #ffffff; | |
| width: 100px; | |
| line-height: 100px; | |
| text-align: center; | |
| margin: 2px; | |
| display: none; | |
| } | |
| .show { | |
| display: block; | |
| } | |
| .container { | |
| margin-top: 20px; | |
| overflow: hidden; | |
| } | |
| /* Style the buttons */ | |
| .btn { | |
| border: none; | |
| outline: none; | |
| padding: 12px 16px; | |
| background-color: #f1f1f1; | |
| cursor: pointer; | |
| } | |
| .btn:hover { | |
| background-color: #ddd; | |
| } | |
| .btn.active { | |
| background-color: #666; | |
| color: white; | |
| } | |
| </style> | |
| <body> | |
| <h2>Filter DIV Elements</h2> | |
| <div id="myBtnContainer"> | |
| <button class="btn active" onclick="filterSelection('all')"> Show all</button> | |
| <button class="btn" onclick="filterSelection('cars')"> Cars</button> | |
| <button class="btn" onclick="filterSelection('animals')"> Animals</button> | |
| <button class="btn" onclick="filterSelection('fruits')"> Fruits</button> | |
| <button class="btn" onclick="filterSelection('colors')"> Colors</button> | |
| </div> | |
| <div class="container"> | |
| <div class="filterDiv cars">BMW</div> | |
| <div class="filterDiv colors fruits">Orange</div> | |
| <div class="filterDiv cars">Volvo</div> | |
| <div class="filterDiv colors">Red</div> | |
| <div class="filterDiv cars animals">Mustang</div> | |
| <div class="filterDiv colors">Blue</div> | |
| <div class="filterDiv animals">Cat</div> | |
| <div class="filterDiv animals">Dog</div> | |
| <div class="filterDiv fruits">Melon</div> | |
| <div class="filterDiv fruits animals">Kiwi</div> | |
| <div class="filterDiv fruits">Banana</div> | |
| <div class="filterDiv fruits">Lemon</div> | |
| <div class="filterDiv animals">Cow</div> | |
| </div> | |
| <script> | |
| filterSelection("all") | |
| function filterSelection(c) { | |
| var x, i; | |
| x = document.getElementsByClassName("filterDiv"); | |
| if (c == "all") c = ""; | |
| for (i = 0; i < x.length; i++) { | |
| w3RemoveClass(x[i], "show"); | |
| if (x[i].className.indexOf(c) > -1) w3AddClass(x[i], "show"); | |
| } | |
| } | |
| function w3AddClass(element, name) { | |
| var i, arr1, arr2; | |
| arr1 = element.className.split(" "); | |
| arr2 = name.split(" "); | |
| for (i = 0; i < arr2.length; i++) { | |
| if (arr1.indexOf(arr2[i]) == -1) {element.className += " " + arr2[i];} | |
| } | |
| } | |
| function w3RemoveClass(element, name) { | |
| var i, arr1, arr2; | |
| arr1 = element.className.split(" "); | |
| arr2 = name.split(" "); | |
| for (i = 0; i < arr2.length; i++) { | |
| while (arr1.indexOf(arr2[i]) > -1) { | |
| arr1.splice(arr1.indexOf(arr2[i]), 1); | |
| } | |
| } | |
| element.className = arr1.join(" "); | |
| } | |
| // Add active class to the current button (highlight it) | |
| var btnContainer = document.getElementById("myBtnContainer"); | |
| var btns = btnContainer.getElementsByClassName("btn"); | |
| for (var i = 0; i < btns.length; i++) { | |
| btns[i].addEventListener("click", function(){ | |
| var current = document.getElementsByClassName("active"); | |
| current[0].className = current[0].className.replace(" active", ""); | |
| this.className += " active"; | |
| }); | |
| } | |
| </script> | |
| </body> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
very good!