sorting

问题 I have an array of objects with parentId and sort values that I'd like to put into an array with nested 'children' and sorted appropriately. For example, here's the data: [{ id: 1, sort: 2, parentId: null, name: 'A' }, { id: 2, sort: 1, parentId: 1, name: 'A.1' }, { id: 3 sort: 2, parentId: 1, name: 'A.2' }, { id: 4, sort: 1, parentId: null, name: 'B' }] The way I'd like to transform this would be such as: [{ id: 4, sort: 1, parentId: null, name: 'B', children: [] }, { id: 1, sort: 2,

问题 I am trying to learn Javascript alone so please don't suggest a library or jQuery. I have a list of divs and I want the user to be able to sort them by their value. For example: <button onclick="sort();">Test</button> <div class="num">2</div> <div class="num">3</div> <div class="num">8</div> <div class="num">1</div> JS: function sort(){ var elements = document.getElementsByClassName("num"); elements.sort(); } I cannot find a straight answer to what's wrong with this. Does

问题 I am trying to learn Javascript alone so please don't suggest a library or jQuery. I have a list of divs and I want the user to be able to sort them by their value. For example: <button onclick="sort();">Test</button> <div class="num">2</div> <div class="num">3</div> <div class="num">8</div> <div class="num">1</div> JS: function sort(){ var elements = document.getElementsByClassName("num"); elements.sort(); } I cannot find a straight answer to what's wrong with this. Does

问题 I am trying to learn Javascript alone so please don't suggest a library or jQuery. I have a list of divs and I want the user to be able to sort them by their value. For example: <button onclick="sort();">Test</button> <div class="num">2</div> <div class="num">3</div> <div class="num">8</div> <div class="num">1</div> JS: function sort(){ var elements = document.getElementsByClassName("num"); elements.sort(); } I cannot find a straight answer to what's wrong with this. Does

问题 I am trying to learn Javascript alone so please don't suggest a library or jQuery. I have a list of divs and I want the user to be able to sort them by their value. For example: <button onclick="sort();">Test</button> <div class="num">2</div> <div class="num">3</div> <div class="num">8</div> <div class="num">1</div> JS: function sort(){ var elements = document.getElementsByClassName("num"); elements.sort(); } I cannot find a straight answer to what's wrong with this. Does

问题 I have a datagridview with a bindingsource as datasource, and the bindingsource has a datatable as a datasource. Some columns are strings but I want them to be sorted in a specific way. The grid sorts them as 1, 10, 10,0 44a, 6c. But I want them to sorted: 1, 6c, 10, 44a, 100 as if i would take the numbers only from the values and sort them accordingly. Is there a way I cand add a custom comparer when certain columns are being sorted? Any other soulutions would be ok if the grid,

问题 I have this array of objects: var eventList = [ { eventName: "abc", status: "completed" }, { eventName: "def", status: "live" }, { eventName: "ghi", status: "live" }, { eventName: "jkl", status: "upcoming" }, ] I want to sort these array of objects using a priority array of a specific key, say ["live", "upcoming", "completed"] for status, meaning all live events come first, followed by upcoming followed by completed. Answers all over the internet seem like you can only sort array objects

问题 I have a text file with lines like this: 2010-02-18 11:46:46.1287 bla 2010-02-18 11:46:46.1333 foo 2010-02-18 11:46:46.1333 bar 2010-02-18 11:46:46.1467 bla A simple sort would swap lines 2 and 3 (bar comes before foo), but I would like to keep lines (that have the same date/time) in their original order. How can I do this in Python? 回答1: sorted(array, key=lambda x:x[:24]) Example: >>> a = ["wxyz", "abce", "abcd", "bcde"] >>> sorted(a) ['abcd', 'abce', 'bcde', 'wxyz'] >>> sorted(a, key=lambda

问题 I have a text file with lines like this: 2010-02-18 11:46:46.1287 bla 2010-02-18 11:46:46.1333 foo 2010-02-18 11:46:46.1333 bar 2010-02-18 11:46:46.1467 bla A simple sort would swap lines 2 and 3 (bar comes before foo), but I would like to keep lines (that have the same date/time) in their original order. How can I do this in Python? 回答1: sorted(array, key=lambda x:x[:24]) Example: >>> a = ["wxyz", "abce", "abcd", "bcde"] >>> sorted(a) ['abcd', 'abce', 'bcde', 'wxyz'] >>> sorted(a, key=lambda

问题 I have a text file with lines like this: 2010-02-18 11:46:46.1287 bla 2010-02-18 11:46:46.1333 foo 2010-02-18 11:46:46.1333 bar 2010-02-18 11:46:46.1467 bla A simple sort would swap lines 2 and 3 (bar comes before foo), but I would like to keep lines (that have the same date/time) in their original order. How can I do this in Python? 回答1: sorted(array, key=lambda x:x[:24]) Example: >>> a = ["wxyz", "abce", "abcd", "bcde"] >>> sorted(a) ['abcd', 'abce', 'bcde', 'wxyz'] >>> sorted(a, key=lambda