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What is the best way to create constants in Objective-C
... #define?
The old answer is “macros don't have type information”, but compilers today are pretty smart about doing all the type-checking for literals (what macros expand to) as well as variables.
The modern answer is because the debugger won't know about your macros. You can't say [myThing add...
Difference between no-cache and must-revalidate
...hereas no-cache implies :
must-revalidate plus the fact the response becomes stale right away.
If a response is cacheable for 10 seconds, then must-revalidate kicks in after 10 seconds, whereas no-cache implies must-revalidate after 0 seconds.
At least, that's my interpretation.
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In Markdown, what is the best way to link to a fragment of a page, i.e. #some_id?
... edited May 23 '17 at 12:02
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answered Sep 7 '11 at 14:43
Steve PowellSteve Po...
Git: Show all of the various changes to a single line in a specified file over the entire git histor
..., then do this:
git log -L110,110:/lib/client.js
This will return every commit which touched that line of code.
[Git Documentation (see the "-L" command line paramenter)]
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How do I pass extra arguments to a Python decorator?
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How do you work with an array of jQuery Deferreds?
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assign multiple variables to the same value in Javascript
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You may want to comment how the behavior will differ primitive types and reference types when assigning values the way you suggest.
– Steven Wexler
Jun 7 '13 at 4:31
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What are the git concepts of HEAD, master, origin?
As I'm learning about git, I keep coming across the terms HEAD, master, origin, and I'm not sure what the differences are. If I understand correctly, HEAD is always equal to the latest revision? And if so, is that the latest revision of the whole repository, or of a specific branch or tag? This is s...