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How to TryParse for Enum value?
...
Based on .NET 4.5
Sample code below
using System;
enum Importance
{
None,
Low,
Medium,
Critical
}
class Program
{
static void Main()
{
// The input value.
string value = "Medium";
// ...
How to create a fixed-size array of objects
In Swift, I am trying to create an array of 64 SKSpriteNode. I want first to initialize it empty, then I would put Sprites in the first 16 cells, and the last 16 cells (simulating an chess game).
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How to convert a Base64 string into a Bitmap image to show it in a ImageView?
I have a Base64 String that represents a BitMap image.
6 Answers
6
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What's the difference between a file descriptor and file pointer?
... unsigned char *_ptr;
int _cnt;
unsigned char *_base;
unsigned char *_bufendp;
short _flag;
short _file;
int __stdioid;
char *__newbase;
#ifdef _THREAD_SAFE
void *_lock;
#else
long _unused[1];
#endif
#...
Storing SHA1 hash values in MySQL
...ch occured when I wanted to store the result of a SHA1 hash in a MySQL database:
7 Answers
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Set custom HTML5 required field validation message
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You can simply achieve this using oninvalid attribute,
checkout this demo code
<form>
<input type="email" pattern="[^@]*@[^@]" required oninvalid="this.setCustomValidity('Put here custom message')"/>
<input type="submit"/>
</form>
Codepen Demo: https://codepen.io/...
How to get object length [duplicate]
... Object.keys(a).length : IE8 doesn't support this and still a large user base use IE8. Therefore, I wouldn't rely on this.
– lshettyl
Apr 12 '13 at 12:24
14
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Eclipse - no Java (JRE) / (JDK) … no virtual machine
...duction.
June 2012, jmbertucci comments:
I'm running Windows 7 64-bit and I had the 32-bit JRE installed.
I downloaded Eclipse 64-bit which looks for a 64-bit JRE.
Because I didn't have the 64-bit JRE it threw the error, which makes sense.
I went to the Java manual install page ...
How to obtain the number of CPUs/cores in Linux from the command line?
... $3}' | tail -1 also will return the wrong number if the CPU numbers are 0-based.
– Phazor
May 4 '15 at 14:37
3
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How to add a progress bar to a shell script?
...mplification, but in order to match Daenyth's approach the spinner must be based on \b rather than \r, as it will otherwise only work at the very beginning of a line: while :; do for c in / - \\ \|; do printf '%s\b' "$c"; sleep 1; done; done - or, if displaying the cursor behind the spinner is undes...