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Detect if value is number in MySQL
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The accepted answer is really clever, but this answer is more direct, and I think it should be the accepted solution.
– pedromanoel
Oct 30 '13 at 15:50
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SQL UPDATE all values in a field with appended string CONCAT not working
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That's pretty much all you need:
mysql> select * from t;
+------+-------+
| id | data |
+------+-------+
| 1 | max |
| 2 | linda |
| 3 | sam |
| 4 | henry |
+------+-------+
4 rows in set (0.02 sec)
mysql> update t se...
Get an object properties list in Objective-C
...turn nil;
}
NSMutableDictionary *results = [[[NSMutableDictionary alloc] init] autorelease];
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList(klass, &outCount);
for (i = 0; i < outCount; i++) {
objc_property_t property = properties[i...
Create a submodule repository from a folder and keep its git commit history
...ommit it
git filter-branch --subdirectory-filter <directory 1> -- --all
You should now have a git repository with the files from directory 1 in your repo's root with all related commit history.
Step 4
Create your online repository and push your new repository!
git remote add origin <...
Getting all names in an enum as a String[]
...<?>> e) {
return Arrays.toString(e.getEnumConstants()).replaceAll("^.|.$", "").split(", ");
}
That you would call like this:
String[] names = getNames(State.class); // any other enum class will work
If you just want something simple for a hard-coded enum class:
public static Strin...
How to copy in bash all directory and files recursive?
... So, to clarify, capital -R option will copy the root dir again; small -r option keeps the root paths the same.
– AnneTheAgile
Aug 7 '14 at 13:27
8
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How would one call std::forward on all arguments in a variadic function?
...mpiler I would do this with real variadic templates. How though, would I call std::forward on the arguments?
1 Answer
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Detecting WPF Validation Errors
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This post was extremely helpful. Thanks to all who contributed. Here is a LINQ version that you will either love or hate.
private void CanExecute(object sender, CanExecuteRoutedEventArgs e)
{
e.CanExecute = IsValid(sender as DependencyObject);
}
private bool IsV...
Remove warning messages in PHP
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You really should fix whatever's causing the warning, but you can control visibility of errors with error_reporting(). To skip warning messages, you could use something like:
error_reporting(E_ERROR | E_PARSE);
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How to convert a Git shallow clone to a full clone?
Follow-up of this so-question: if I have a shallow clone, how to fetch all older commits to make it a full clone?
6 Answe...