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Programmatically add custom event in the iPhone Calendar
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Thanks for posting this. Just a reminder to all who read this: take care to watch for memory leaks. There are a couple in this code sample. Also, best practices would dictate that you check the value of 'err' after saveEvent:span:error and handle things accordingly.
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How to sort a list of objects based on an attribute of the objects?
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Readers should notice that the key= method:
ut.sort(key=lambda x: x.count, reverse=True)
is many times faster than adding rich comparison operators to the objects. I was surprised to read this (page 485 of "Python in a Nut...
What's the fastest way to delete a large folder in Windows?
...the parameters used above:
/f - Force (i.e. delete files even if they're read only)
/s - Recursive / Include Subfolders (this definition from SS64, as technet simply states "specified files", which isn't helpful).
/q - Quiet (i.e. do not prompt user for confirmation)
Documentation for rmdir here...
How to escape % in String.Format?
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This will replace % that are already doubled. Please read the other answer.
– Toilal
Jul 27 '16 at 6:37
1
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Checking if a string is empty or null in Java [duplicate]
...null)); // true
Google Guava also provides a similar, probably easier-to-read method: Strings.isNullOrEmpty(str).
Example:
System.out.println(Strings.isNullOrEmpty("")); // true
System.out.println(Strings.isNullOrEmpty(null)); // true
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SQLiteDatabase.query method
...uick reference for future viewers.
Example
SQLiteDatabase db = helper.getReadableDatabase();
String table = "table2";
String[] columns = {"column1", "column3"};
String selection = "column3 =?";
String[] selectionArgs = {"apple"};
String groupBy = null;
String having = null;
String orderBy = "colu...
How does push notification technology work on Android?
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I do not know. I've just read how C2DM was working. Now something can change.
– Yury
Jul 16 '12 at 18:39
add a comment
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How to “git show” a merge commit with combined diff output even when every changed file agrees with
...to your gitconfig:
exportfiles = !sh -c 'git diff $0 --name-only | "while read files; do mkdir -p \"$1/$(dirname $files)\"; cp -vf $files $1/$(dirname $files); done"'
then use it by doing:
git exportfiles ee2de56..fc17405 /c/temp/myproject
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Why does @foo.setter in Python not work for me?
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To understand the "why" behind this answer, read the definitive documentation here: docs.python.org/2/library/functions.html#property Especially note the "exactly equivalent" part.
– Evgeni Sergeev
Mar 21 '18 at 22:48
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How do I tell if a regular file does not exist in Bash?
... file exists and regular file -r: Return true value, if file exists and is readable -w: Return true value, if file exists and is writable -x: Return true value, if file exists and is executable -d: Return true value, if exists and is a directory
– SD.
Dec 19 '...