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What does enumerable mean?
..., "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", /* etc. */]
Each of these properties still exists on the object:
console.log('constructor' in foo); // true
console.log('toString' in foo); // true
// etc.
But, they're skipped by the for..in loop because they aren't enu...
Deleting elements from std::set while iterating
... depending on your compiler, your operating system, the phase of the moon, etc.
If something executes without crashing and behaves as you expect it to, that is not proof that it is not undefined behavior. All it proves is that its behavior happened to be as observed for that particular run after co...
Is there any way to view the currently mapped keys in Vim?
... all of the keys maps made in the current buffer by all of plugins, vimrc, etc, in the current buffer. Is there anyway to do this?
...
JVM option -Xss - What does it do exactly?
...he stack is used to hold return addresses, function/method call arguments, etc. So if a thread tends to process large structures via recursive algorithms, it may need a large stack for all those return addresses and such. With the Sun JVM, you can set that size via that parameter.
...
Can not connect to local PostgreSQL
... system, they all contain conf.sample files (pg_hba, pg_ident, pg_service, etc) but no .conf files. This should not be the case, correct? Also the directory that should contain .s.PGSQL.5432 is empty. Instead I have a file located at /private/tmp/.s.PGSQL.5432.lock. PS returns postgres processes so ...
How to remove unreferenced blobs from my git repo
... you might want to keep: Stashes; Old history not in any current branches; etc. Read the documentation to be sure this is what you want.
To expire the reflog, and then prune all objects not in branches:
git reflog expire --expire-unreachable=now --all
git gc --prune=now
git reflog expire --expire-u...
How to find the 'sizeof' (a pointer pointing to an array)?
...runtime factors (command line arguments, contents of a file, phase of moon,etc).
– Paul Tomblin
Mar 3 '13 at 20:48
15
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How to maintain a Unique List in Java?
... need the List Interface (i.e. for compatibility with a 3rd party library, etc.), or can you redesign your software to use the Set interface? You also have to consider what you are doing with the interface. Is it important to find elements by their index? How many elements do you expect in your set?...
Is memcached a dinosaur in comparison to Redis? [closed]
...ation to memcached. Other things are also dated (redis is super fast now, etc), but FYI if you're here five years later...
– dannysauer
Mar 11 '15 at 16:02
...
How to detect internet speed in JavaScript?
...ing downloaded in other windows, the speed of your server, links en route, etc., etc. But you can get a rough idea using this sort of technique.
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