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What's the best way to set a single pixel in an HTML5 canvas?
... as an exercise for the reader
creating another img or canvas filled with all the pixels you want and use drawImage() to blit just the pixel you want across. This would probably be very fast, but has the limitation that you need to pre-calculate the pixels you need.
Note that my tests do not atte...
Difference between make and build in Android Studio
...ed. Others are seldom used.
It is the same as IntelliJ Idea.
Compile All the source files in the specified scope are compiled. The scope in this case may be a file, a package, etc.
Make Project All the source files in the entire project that have been modified since the last compilation a...
What's the difference between Cache-Control: max-age=0 and no-cache?
... request
without successful revalidation with
the origin server. This allows an
origin server to prevent caching even
by caches that have been configured to
return stale responses to client
requests.
In other words, caches may sometimes choose to use a stale response (although I belie...
Is JavaScript guaranteed to be single-threaded?
JavaScript is known to be single-threaded in all modern browser implementations, but is that specified in any standard or is it just by tradition? Is it totally safe to assume that JavaScript is always single-threaded?
...
What are the differences between virtual memory and physical memory?
...e (in case of other implementations of virtual memory, we maybe shouldn't call it the "page table"). The page table is in physical memory as well - often in kernel-reserved spaces that user programs cannot write over.
Virtual memory is typically larger than physical memory - there wouldn't be much ...
Postgres unique constraint vs index
...
is it actual info? especially about partial indexes
– anatol
Feb 20 '19 at 6:30
1
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Take diff of two vertical opened windows in Vim
...
To begin diffing on all visible windows:
:windo diffthis
which executes :diffthis on each window.
To end diff mode:
:diffoff!
(The ! makes diffoff apply to all windows of the current tab - it'd be nice if diffthis had the same feature, bu...
How to tell Maven to disregard SSL errors (and trusting all certs)?
... relaxed SSL check for user generated certificates.
-Dmaven.wagon.http.ssl.allowall=true - enable match of the server's X.509 certificate with hostname. If disabled, a browser like check will be used.
-Dmaven.wagon.http.ssl.ignore.validity.dates=true - ignore issues with certificate dates.
Officia...
How do you reindex an array in PHP?
...ollowing array, which I would like to reindex so the keys are reversed (ideally starting at 1):
21 Answers
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How can I recover a removed file in Mercurial (if at all)?
Accidentally, by using a GUI as opposed to CLI, I removed every file in a Mercurial project.
9 Answers
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