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Remove all special characters with RegExp
...tion of the set [...], gi say global and case-insensitive (the latter is a bit redundant but I wanted to mention it) and the safelist in this example is digits, word characters, underscores (\w) and whitespace (\s).
share
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How to do parallel programming in Python?
...CPython uses the Global Interpreter Lock which makes parallel programing a bit more interesting than C++
This topic has several useful examples and descriptions of the challenge:
Python Global Interpreter Lock (GIL) workaround on multi-core systems using taskset on Linux?
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Generating a PNG with matplotlib when DISPLAY is undefined
...
The clean answer is to take a little bit of time correctly prepare your execution environment.
The first technique you have to prepare your execution environment is to use a matplotlibrc file, as wisely recommended by Chris Q., setting
backend : Agg
in that ...
Deserialize JSON with C#
... @Kevin Holditch thanks for the correction. I missed one important bit :)
– Icarus
Oct 25 '11 at 20:14
2
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How to check if a table exists in a given schema
...For this particular question you can also use the system view pg_tables. A bit simpler and more portable across major Postgres versions (which is hardly of concern for this basic query):
SELECT EXISTS (
SELECT FROM pg_tables
WHERE schemaname = 'schema_name'
AND tablename = 'table_name...
Grab a segment of an array in Java without creating a new array on heap
...deletion. The answer by @unique72 is correct. Imma let this edit sit for a bit and then I shall delete this answer.)
I don't know of a way to do this directly with arrays without additional heap allocation, but the other answers using a sub-list wrapper have additional allocation for the wrapper...
Best practices for in-app database migration for Sqlite
... @KonstantinTarkus, according to documentation application_id is an extra bit for identifying file format by file utility for example, not for versions of database.
– xaizek
Dec 12 '16 at 22:10
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How to do date/time comparison
...ng in the comments would be a better fit that answering with random useful bits.
– matthias krull
Jun 15 '15 at 10:25
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Configure IIS Express for external access to VS2010 project
...ternal traffic are similar to setting up a site to use a reserved port. On Windows 7 or Windows Vista, from an elevated command prompt, run the following command:
netsh http add urlacl url=http://*:8080/ user=DOMAIN\username
On Windows XP, run the following command from an elevated command...
How can I check if a background image is loaded?
...kgroundImage = `url(${imageUrl})`;
preloaderImg = null;
});
A bit longer with nice opacity transition:
const imageUrl = "https://www.google.com/images/branding/googlelogo/1x/googlelogo_color_272x92dp.png";
let bgElement = document.querySelector(".bg-lazy");
bgElement.classList.a...