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Rails: how do I validate that something is a boolean?
...age: validates :field, inclusion: { in: [ true, false ], message: "Please, select one!" }
– tagaism
Mar 23 '18 at 9:28
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Test for existence of nested JavaScript object key
...th Claudiu's modification which is also significantly more performant than selected answer. See jsperf here jsperf.com/check-if-deep-property-exists-with-willnotthrow
– netpoetica
Nov 27 '14 at 5:35
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In .NET, which loop runs faster, 'for' or 'foreach'?
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Enumerable.Select has an overload that lets you obtain the index of the item, so even the need for an index does not mandate using for. See msdn.microsoft.com/en-us/library/bb534869.aspx
– TrueWill
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Windows batch: formatted date into variable
..."Install MS SQL Server, connect with a SQL Client, and execute the command SELECT CONVERT(VARCHAR(16), GETDATE(), 112)".
– isapir
Oct 13 '17 at 20:38
2
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How to rotate the background image in the container?
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fyi, it doesn't work for all elements; for example, a select can't have a :before.
– Yann Dìnendal
Apr 10 '15 at 14:41
1
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Javascript : Send JSON Object with Ajax?
...ed the result to the function
var IDs = JsonConvert.SerializeObject(Model.Select(s => s.ID).ToArray());
Then call the XMLHttpRequest POST and stringify the object
var ajax = new XMLHttpRequest();
ajax.open("POST", '@Url.Action("MyAction", "MyController")', true);
ajax.responseType = "blob";
a...
Detect Windows version in .net
...;
using (ManagementObjectSearcher searcher = new ManagementObjectSearcher("SELECT * FROM Win32_OperatingSystem"))
{
ManagementObjectCollection information = searcher.Get();
if (information != null)
{
foreach (ManagementObject obj in information)
{
r = obj["Cap...
Returning a boolean from a Bash function
...s no failure (success) and non-zero means failure (of type N).
While the selected answer is technically "true" please do not put return 1** in your code for false. It will have several unfortunate side effects.
Experienced developers will spot you as an amateur (for the reason below).
Experience...
Should I put input elements inside a label element?
...he first example given here by superUntitled for textboxes, textareas, and selects. But for radio buttons and checkboxes, I usually use the third example, where I want the input before the accompanying text and don't want the same kind of fixed width and/or floating that the rest of the labels and f...
What is AssemblyInfo.cs used for?
...mblyInfo.cs.
In Windows Explorer, right click your project's .exe output, select Properties, and go to the Details tab. That is the information generated by AssemblyInfo.cs.
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