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How do I invoke a Java method when given the method name as a string?
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Plus one for showing some potential exceptions. If I had written this, it would be ... catch(Exception e){ ...
– mikbanUtah
Dec 11 '14 at 6:32
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Use of .apply() with 'new' operator. Is this possible?
...mething, [null, a, b, c]));
This and the eval-based solution are the only ones that always work, even with special constructors like Date:
var date = newCall(Date, 2012, 1);
console.log(date instanceof Date); // true
edit
A bit of explanation:
We need to run new on a function that takes a limited...
Why does datetime.datetime.utcnow() not contain timezone information?
Why does this datetime not have any timezone info given that it is explicitly a UTC datetime ?
9 Answers
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Create a pointer to two-dimensional array
I need a pointer to a static 2-dimensional array. How is this done?
10 Answers
10
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Font size in CSS - % or em?
...mobile devices have a device pixel ratio larger than 1. For example the iPhone 4 has a physical screen width of 640px, but appears as 320 "CSS" pixels (DPR=2). So the website does not appear smaller!
– Benjamin
Feb 28 '18 at 13:30
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Add UIPickerView & a Button in Action sheet - How?
...ining a simple tableview.
There are many ways to accomplish this. Here's one way that I just implemented in a current project. It's nice because I can reuse it between 5 or 6 different screens where I all users to select from a list of options.
Create a new UITableViewController subclass, Simple...
Unit testing with Spring Security
...company has been evaluating Spring MVC to determine if we should use it in one of our next projects. So far I love what I've seen, and right now I'm taking a look at the Spring Security module to determine if it's something we can/should use.
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Concurrent HashSet in .NET Framework?
...ere are some workarounds.
ConcurrentDictionary (recommended)
This first one is to use the class ConcurrentDictionary<TKey, TValue> in the namespace System.Collections.Concurrent. In the case, the value is pointless, so we can use a simple byte (1 byte in memory).
private ConcurrentDictiona...
Most efficient way to concatenate strings?
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Why haven't you mentioned string.Concat?
– Venemo
Sep 27 '13 at 12:56
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Programmatically find the number of cores on a machine
... C++ prior to C++11, there's no portable way. Instead, you'll need to use one or more of the following methods (guarded by appropriate #ifdef lines):
Win32
SYSTEM_INFO sysinfo;
GetSystemInfo(&sysinfo);
int numCPU = sysinfo.dwNumberOfProcessors;
Linux, Solaris, AIX and Mac OS X >=10.4 (i....