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MySQL, Check if a column exists in a table with SQL
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Number of days between two NSDates [duplicate]
...tartDate:&toDate
interval:NULL forDate:toDateTime];
NSDateComponents *difference = [calendar components:NSCalendarUnitDay
fromDate:fromDate toDate:toDate options:0];
return [difference day];
}
EDIT:
Fantastic solution above, here's Swift version below as an extension...
Getting the name of the currently executing method
..., it is. The documentation for Throwable.[getStackTrace()](download.oracle.com/javase/1.5.0/docs/api/java/lang/… contains the exact same paragraph.
– Bombe
Nov 11 '11 at 16:50
4
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Inspect attached event handlers for any DOM element
...safari. I'll also link to a more popular discussion on this: stackoverflow.com/questions/446892/…
– Nickolay
Oct 18 '11 at 23:10
1
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Where should @Service annotation be kept? Interface or Implementation?
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I never put @Component (or @Service, ...) at an interface, because this make the interface useless. Let me explain why.
claim 1: If you have an interface then you want to use that interface for the injection point type.
claim 2: The pur...
Apply .gitignore on an existing repository already tracking large number of files
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This answer solved my problem:
First of all, commit all pending changes.
Then run this command:
git rm -r --cached .
This removes everything from the index, then just run:
git add .
Commit it:
git commit -m ".gitignore is now working"
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Having a UITextField in a UITableViewCell
...ath row] == 0) {
playerTextField.placeholder = @"example@gmail.com";
playerTextField.keyboardType = UIKeyboardTypeEmailAddress;
playerTextField.returnKeyType = UIReturnKeyNext;
}
else {
playerTextField.placeholder = @"Required";
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NullPointerException in Java with no StackTrace
...zed away, it's because it has gotten fully handled at least once: jawspeak.com/2010/05/26/…
– sharakan
Jun 19 '12 at 14:56
1
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What does the “__block” keyword mean?
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It tells the compiler that any variable marked by it must be treated in a special way when it is used inside a block. Normally, variables and their contents that are also used in blocks are copied, thus any modification done to these vari...
How to overcome “datetime.datetime not JSON serializable”?
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Updated for 2018
The original answer accommodated the way MongoDB "date" fields were represented as:
{"$date": 1506816000000}
If you want a generic Python solution for serializing datetime to json, check out @jjmontes' answer for a quick solution which requires ...