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Reference — What does this symbol mean in PHP?
...y now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list.
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Single huge .css file vs. multiple smaller specific .css files? [closed]
... the nicest development environment, with everything neatly split into components.
Sass and LESS have the added advantage of variables, nesting and other ways to make CSS easier to write and maintain. Highly, highly recommended. I personally use Sass (SCSS syntax) now, but used LESS previously. Bot...
What are the differences between a clustered and a non-clustered index?
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Clustered Index
Only one per table
Faster to read than non clustered as data is physically stored in index order
Non Clustered Index
Can be used many times per table
Quicker for insert and update operations than a clustered index
Both types...
Why is semicolon allowed in this python snippet?
...ython.org/reference/compound_stmts.html
Compound statements consist of one or more ‘clauses.’ A clause
consists of a header and a ‘suite.’ The clause headers of a particular
compound statement are all at the same indentation level. Each clause
header begins with a uniquely identify...
How do I concatenate multiple C++ strings on one line?
...yInt << niceToSeeYouString; std::string s = ss.str(); is pretty much one-line
– Kotauskas
Aug 7 '18 at 13:41
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One DbContext per web request… why?
...icles explaining how to set up Entity Framework's DbContext so that only one is created and used per HTTP web request using various DI frameworks.
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What is a semaphore?
...ber of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might enter.
It's simply a way to limit the number of consumers for a specific resource. For example, to limit the number of simultaneous calls to a da...
Git add and commit in one command
...s ('), as otherwise it will fail for shell expansion on Linux. On Windows, one should use double-quotes (") instead (pointed out in the comments, did not verify).
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How to affect other elements when one element is hovered
...the general solution for styling other elements when hovering over a given one, but it works only if the other elements follow the given one in the DOM. What can we do when the other elements should actually be before the hovered one? Say we want to implement a signal bar rating widget like the one ...
How do MySQL indexes work?
...other aid, such as a table of contents) you'd have to go through the pages one by one, until you found the topic (that's a full table scan).
On the other hand, an index has a list of keywords, so you'd consult the index and see that storage is mentioned on pages 113-120,231 and 354. Then you could f...