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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
... a generator (coroutine) using yield from - Part 1
Now let's do something more interesting. Let's create a coroutine called writer that accepts data sent to it and writes to a socket, fd, etc.
def writer():
"""A coroutine that writes data *sent* to it to fd, socket, etc."""
while True:
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How do you use “git --bare init” repository?
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Timing a command's execution in PowerShell
... or measure-command, or just comparing two get-date vars... (I mean what's more efficient to keep permanently in a script?)
– Hicsy
Sep 20 '17 at 4:00
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Error in exception handler. - Laravel
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Rails DB Migration - How To Drop a Table?
...ion here:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
More specifically, you can see how to drop a table using the following approach:
drop_table :table_name
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Capturing Groups From a Grep RegEx
...egex (and the one using grep) will match any of the following examples and more, which may not be what you're looking for:
123_abc_d4e5
xyz123_abc_d4e5
123_abc_d4e5.xyz
xyz123_abc_d4e5.xyz
To eliminate the second and fourth examples, make your regex like this:
^[0-9]+_([a-z]+)_[0-9a-z]*
which ...
What is the difference between D3 and jQuery?
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nice, one example is worth more than a 1000 words
– TMG
Mar 2 '16 at 22:07
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What's the most efficient test of whether a PHP string ends with another string?
...rumley's answer is cool, but it should use '===' instead of '=='. '===' is more strict and usually does what you want, while '==' can lead to nasty surprises. mcrumley's third code snippet is correct, but the first two aren't. substr_compare() returns false in some error cases. In PHP, false == 0, s...
How to generate a random alpha-numeric string?
...nique over 500K+ generation (my needs don't really require anything much more sophisticated).
42 Answers
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Traversing text in Insert mode
...n, fix it, go back and keep editing. It is effective because Vim has much more movements than usual character forward/backward/up/down. After you learn more of them, this will happen to be more productive.
Here's a couple of use-cases:
You accidentally typed "accifentally". No problem, the seq...