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How do HashTables deal with collisions?
...lues". Thanks, this is the point that is not always immediately clear when reading about mechanisms for storing values.
– mtone
Jun 28 '15 at 21:54
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Javascript : Send JSON Object with Ajax?
... formdata over. You can also send JSON directly, in which case you can not read it with $_POST, but instead read it with json_decode(file_get_contents('php://input'));
– David
Oct 22 '17 at 8:28
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Best way to reverse a string
...de characters, not bytes. Xor may be faster, but apart from being far less readable, that may even be what Array.Reverse() uses internally.
– Nick Johnson
Oct 23 '08 at 13:18
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Best practices for in-app database migration for Sqlite
... me share some migration code with FMDB and MBProgressHUD.
Here's how you read and write the schema version number (this is presumably part of a model class, in my case it's a singleton class called Database):
- (int)databaseSchemaVersion {
FMResultSet *resultSet = [[self database] executeQuer...
Initialization of an ArrayList in one line
...ing the List.of method to of, because that becomes confusing.
List.of is already short enough and reads well.
Using Streams
Why does it have to be a List?
With Java 8 or later you can use a Stream which is more flexible:
Stream<String> strings = Stream.of("foo", "bar", "baz");
You can concat...
When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
...th and height) and uses those in its calculations, but it neither sets nor reads any scope variables and has no template. This is a good use case for not creating another scope; we don't need one, so why bother?
But in another SVG directive, however, I required a set of data to use and additionally...
Which encoding opens CSV files correctly with Excel on both Mac and Windows?
... a corresponding "File origin" or "File encoding" selector which correctly reads the data.
Depending on your system and the tools you use, this encoding could also be named CP1252, ANSI, Windows (ANSI), MS-ANSI or just Windows, among other variations.
This encoding is a superset of ISO-8859-1 (aka...
What's the difference between and
...tancetest = aList instanceof List<? extends Object>;
for more info read Java generics and collections by Maurice Naftalin
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Remove duplicate dict in list in Python
... Cool. I added the fix to your answer for the benefit of future readers who might not read the whole conversation.
– alexis
Feb 24 '12 at 21:46
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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
... which don't really matter in this environment. You can give the process a read only root file system, an isolated loopback network connection, and you can still kill it easily and set memory limits etc.
Seccomp is going to be a bit difficult, as the code cannot even allocate memory.
Selinux is th...