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What is Cache-Control: private?
...eeds to send the resource to client? Maybe the resource never changed.
In order to resolve this problem, HTTP1.1 gives last-modifided head. The server gives the last modified date of the response to client. When the client need this resource, it will send If-Modified-Since head field to server. If...
Base constructor in C# - Which gets called first? [duplicate]
...bClass() {
sentenceTwo = "jumps over the lazy dog"; // D
}
}
Order of execution is: C, A, B, D.
Check out these 2 msdn articles:
Why do initializers run in the opposite order as constructors? Part One
Why do initializers run in the opposite order as constructors? Part Two
...
How to change Elasticsearch max memory size
...one of the above answers worked for me.
I tried changing ES_HEAP_SIZE in /etc/default/elasticsearch and in etc/init.d/elasticsearch, but when I ran ps aux | grep elasticsearch the output still showed:
/usr/bin/java -Xms2g -Xmx2g # aka 2G min and max ram
I had to make these changes in:
/etc/elas...
How to sort a list/tuple of lists/tuples by the element at a given index?
...
In order to sort a list of tuples (<word>, <count>), for count in descending order and word in alphabetical order:
data = [
('betty', 1),
('bought', 1),
('a', 1),
('bit', 1),
('of', 1),
('butter', 2),
('but', 1),
('...
What are the differences between git remote prune, git prune, git fetch --prune, etc
...oesn't affect your view of any branches.
git remote prune origin and git fetch --prune both operate on references under refs/remotes/... (I'll refer to these as remote references). It doesn't affect local branches. The git remote version is useful if you only want to remove remote references unde...
How are zlib, gzip and zip related? What do they have in common and how are they different?
...A .tar file would have to be decompressed and scanned from start to end in order to build a directory, which is how a .tar file is listed.
Shortly after the introduction of gzip, around the mid-1990s, the same patent dispute called into question the free use of the .gif image format, very widely use...
Why not inherit from List?
...of historical facts such as when a player was recruited, injured, retired, etc. Obviously the current player roster is an important fact that should probably be front-and-center, but there may be other interesting things you want to do with this object that require a more historical perspective.
...
How do I (or can I) SELECT DISTINCT on multiple columns?
.... I suggest a serial or an IDENTITY column in Postgres 10+.
Related:
In-order sequence generation
Auto increment table column
How is this faster?
The subquery in the EXISTS anti-semi-join can stop evaluating as soon as the first dupe is found (no point in looking further). For a base table wit...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
...s is still unique for a lot of them, but when we're talking about just two orders of magnitude difference between number of objects and the hash size, there will be collisions in truncated hash values.
It's no longer even close to unrealistic - it happens all the time.
We should both increase...
How does RegexOptions.Compiled work?
...ases where you reuse the Regex object. However in some cases can be over 3 orders of magnitude slower to construct.
It also shows that the x64 version of .NET can be 5 to 6 times slower when it comes to compilation of regular expressions.
The recommendation would be to use the compiled version i...