Sort python list by function
sort(my_list_of_objects, key=my_number_giving_function) same for sorted, see the Python Sorting HOWTO
sorting
HTML table sort
Check if you could go with any of the below mentioned JQuery plugins. Simply awesome and provide wide range of options to work through, and less pains to integrate. 🙂 https://github.com/paulopmx/Flexigrid – Flexgrid http://datatables.net/index – Data tables. https://github.com/tonytomov/jqGrid If not, you need to have a link to those table headers that calls a server-side script … Read more
Sort dataGridView columns in C# ? (Windows Form)
There’s a method on the DataGridView called “Sort”: this.dataGridView1.Sort(this.dataGridView1.Columns[“Name”], ListSortDirection.Ascending); This will programmatically sort your datagridview.
Sort a multidimensional array descending by subarray count and preserve first level keys
Using uksort: uksort($array, function($a, $b) { return count($b) – count($a); }); Using array_multisort: array_multisort(array_map(‘count’, $array), SORT_DESC, $array); With PHP < 5.3: function sort_cb($a, $b) { return count($b) – count($a); } uksort($array, ‘sort_cb’);
Mergesort with Python
The first improvement would be to simplify the three cases in the main loop: Rather than iterating while some of the sequence has elements, iterate while both sequences have elements. When leaving the loop, one of them will be empty, we don’t know which, but we don’t care: We append them at the end of … Read more
How to sort a JavaScript array of objects by nested object property?
You can split the prop on ., and iterate over the Array updating the a and b with the next nested property during each iteration. Example: http://jsfiddle.net/x8KD6/1/ var sort = function (prop, arr) { prop = prop.split(‘.’); var len = prop.length; arr.sort(function (a, b) { var i = 0; while( i < len ) { … Read more
Better way to sort array in descending order
Use LINQ OrderByDescending method. It returns IOrderedIEnumerable<int>, which you can convert back to Array if you need so. Generally, List<>s are more functional then Arrays. array = array.OrderByDescending(c => c).ToArray();
How does Array#sort work when a block is passed?
In your example a.sort is equivalent to a.sort { |x, y| x <=> y } As you know, to sort an array, you need to be able to compare its elements (if you doubt that, just try to implement any sort algorithm without using any comparison, no <, >, <= or >=). The block you … Read more
Sort directory files by creation datetime in Windows filesystem
On windows the CTime is the creation time, use the following: <?php $files = array(); foreach (new DirectoryIterator(‘/path’) as $fileInfo) { $files[$fileInfo->getFileName()] = $fileInfo->getCTime(); } arsort($files); After this $files will contain an array of your filenames as the keys and the ctime as the values. I chose this backwards representation due to the possibility of … Read more
How to sort a list of dictionaries by a value of the dictionary in Python?
The sorted() function takes a key= parameter newlist = sorted(list_to_be_sorted, key=lambda d: d[‘name’]) Alternatively, you can use operator.itemgetter instead of defining the function yourself from operator import itemgetter newlist = sorted(list_to_be_sorted, key=itemgetter(‘name’)) For completeness, add reverse=True to sort in descending order newlist = sorted(list_to_be_sorted, key=itemgetter(‘name’), reverse=True)