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December 13, 2015 17:19
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Save crswll/4946635 to your computer and use it in GitHub Desktop.
Just a quick demo for cloning and removing elements and updating their id for someone in IRC.
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| (function($){ | |
| $('.add').on('click', function(){ | |
| var $items = $('.items'), | |
| $last = $items.find('.item').last(); | |
| $clone = $last.clone(); | |
| $clone.attr('id', function(idx, id){ | |
| return id.replace(/\d+$/, function(digit){ | |
| return +digit + 1; | |
| }); | |
| }).val($clone.attr('id')); | |
| $clone.appendTo($items); | |
| }); | |
| $('.remove').on('click', function(){ | |
| $('.items .item').last().remove(); | |
| }); | |
| })(jQuery); | |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <script src="http://code.jquery.com/jquery-1.8.3.min.js"></script> | |
| <meta charset=utf-8 /> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <div class="items"> | |
| <input class="item" value="id-1" id="id-1"> | |
| </div> | |
| <button class="add">Add</button> | |
| <button class="remove">Remove</button> | |
| </body> | |
| </html> |
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