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What does threadsafe mean?
...eed to perform common actions - disk i/o, outputting results to the screen etc. - these parts of the code will need to be written in such a way that they can handle being called from multiple threads, often at the same time. This will involve things like:
Working on copies of data
Adding locks aro...
What is the difference between async.waterfall and async.series
..., while async.series would be for discrete tasks that must be performed in order, but are otherwise separate.
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Iterate through a HashMap [duplicate]
...rk for any map implementation (HashMap, TreeMap, LinkedHashMap, Hashtable, etc.)
Method #1: Iterating over entries using a For-Each loop.
This is the most common method and is preferable in most cases. It should be used if you need both map keys and values in the loop.
Map<Integer, Integer>...
How to recursively list all the files in a directory in C#?
...t is common to not include them. Heck, you'll also need a class definition etc. Just sayin'
– Marc Gravell♦
Jun 21 '16 at 8:58
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Escaping ampersand in URL
...to encode the body and subject parameters to keep line breaks, ampersands, etc. intact.
When a character from the reserved set (a "reserved character") has
special meaning (a "reserved purpose") in a certain context, and a URI
scheme says that it is necessary to use that character for some o...
How to get start and end of day in Javascript?
... different intervals (hour: 1000 * 60 * 60, 12 hours: 1000 * 60 * 60 * 12, etc.)
const interval = 1000 * 60 * 60 * 24; // 24 hours in milliseconds
let startOfDay = Math.floor(Date.now() / interval) * interval;
let endOfDay = startOfDay + interval - 1; // 23:59:59:9999
...
“Active Directory Users and Computers” MMC snap-in for Windows 7?
...rverAdministrationTools-Roles-AD-DS-SnapIns
Note - I had to run these in order for AD Users and Computers to show up, as they were disabled on my computer after the install. This might not be the case for all users.
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How to remove items from a list while iterating?
...
For example (depends on what type of list):
for tup in somelist[:]:
etc....
An example:
>>> somelist = range(10)
>>> for x in somelist:
... somelist.remove(x)
>>> somelist
[1, 3, 5, 7, 9]
>>> somelist = range(10)
>>> for x in somelist[:]:
....
postgresql COUNT(DISTINCT …) very slow
...x values in single transaction then you'd need to do this in some explicit order to avoid possible deadlock.
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How do I include a path to libraries in g++
...ent variables which can be used to control the include path, library path, etc.
– Ernest Friedman-Hill
Mar 16 '13 at 3:09
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