Scrolling to the bottom on change I don’t have enough reputation to post a comment yet, so here you go @Dam and @Evert To scroll to the bottom whenever the number of entries in your ForEach changes you can also use the same method with a ScrollViewReader, as mentioned in the answer above, by adding … Read more
A good implementation of the feature you are requested can be found here: https://github.com/ignatz/pythonic The idea behind is, that you build a wrapper struct with a custom iterator that does the counting. Below is a very minimal exemplary implementation to illustrate the idea: // Distributed under the terms of the GPLv2 or newer #include <iostream> … Read more
I just mocked your code with this foreach(var v in Enumerable.Range(1,10).Skip(1)) v.Dump(); And here is the IL generated. IL_0001: nop IL_0002: ldc.i4.1 IL_0003: ldc.i4.s 0A IL_0005: call System.Linq.Enumerable.Range IL_000A: ldc.i4.1 IL_000B: call System.Linq.Enumerable.Skip//Call to Skip IL_0010: callvirt System.Collections.Generic.IEnumerable<System.Int32>.GetEnumerator IL_0015: stloc.1 // CS$5$0000 IL_0016: br.s IL_0026 IL_0018: ldloc.1 // CS$5$0000 IL_0019: callvirt System.Collections.Generic.IEnumerator<System.Int32>.get_Current IL_001E: stloc.0 // … Read more
Why does it start with B? Since 5.2 foreach (reliably) advances the array pointer before the loop body starts. See also the FE_RESET opcode. $list = array(“A”, “B”, “C”,”D”); foreach ($list as $var) { break; } var_dump(current($list)); Output: B This may have something to with how the ZEND_OP_DATA pseudo opcode works (which isn’t really documented). … Read more
You need an iterable to be able to use a for-each loop, for example a collection or an array: for (String s : strings.stream().filter(s->s.length() == 2).toArray(String[]::new)) { Alternatively, you could completely get rid of the for loop: strings.stream().filter(s->s.length() == 2).forEach(System.out::println); You mention you don’t want to refactor your for loop but you could extract its … Read more
Use th:block as stated in the Thymeleaf guide th:block is a mere attribute container that allows template developers to specify whichever attributes they want. Thymeleaf will execute these attributes and then simply make the block disappear without a trace. So it could be useful, for example, when creating iterated tables that require more than one … Read more
You need to add attribute MultipleActiveResultSets in connection string and set it to true to allow multiple active result sets. “Data Source=MSSQL1;” & _ “Initial Catalog=AdventureWorks;Integrated Security=SSPI;” & _ “MultipleActiveResultSets=True” Read more at: https://learn.microsoft.com/en-us/dotnet/framework/data/adonet/sql/enabling-multiple-active-result-sets
You can iterate through the list backwards: for (int i = myList.Count – 1; i >= 0; i–) { if (whatever) myList.RemoveAt(i); } In response to your comment about wanting to quit when you find an item that you’re NOT removing, then just using a while loop would be the best solution.
Imagine that you’re the head chef for a restaurant, and you’re all preparing a huge omelette for a buffet. You hand a carton of a dozen eggs to each of two of the kitchen staff, and tell them to get cracking, literally. The first one sets up a bowl, opens the crate, grabs each egg … Read more
Check the manual for mysql_fetch_object(). It returns an object, not an array of objects. I’m guessing you want something like this $results = mysql_query(“SELECT * FROM sidemenu WHERE `menu_id`='”.$menu.”‘ ORDER BY `id` ASC LIMIT 1″, $con); $sidemenus = array(); while ($sidemenu = mysql_fetch_object($results)) { $sidemenus[] = $sidemenu; } Might I suggest you have a look … Read more