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How to specify a multi-line shell variable?
...have quotes and variables in the text easily as well:
example output
$ ./test.sh
The text from the example function is:
Welcome dev: Would you "like" to know how many 'files' there are in /tmp?
There are " 38" files in /tmp, according to the "wc" command
test.sh
#!/bin/bash
function...
How is “=default” different from “{}” for default constructor and destructor?
...structor, then things won't compile whether or not you destruct a Widget:
test.cpp:8:7: error: field of type 'A' has private destructor
A a_;
^
test.cpp:4:5: note: declared private here
~A();
^
1 error generated.
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How to prevent browser page caching in Rails
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Agreed, this is not a valid solution, tested with Rails 5.2 and Chrome 77. no-store is also needed.
– AndrewSouthpaw
Oct 25 '19 at 4:33
ad...
TCP loopback connection vs Unix Domain Socket performance
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This answer is wrong, when tested loopback tcp on modern linux is as fast and sometimes faster than UDS. can provide benchmark if required
– easytiger
Jun 18 '14 at 13:11
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Is there a way to automate the android sdk installation?
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I cannot confirm this working. I get an error sounding like " 'y y y y y y y y' is not a valid answer", that's why I fell back to the solution with a sleep between.
– npstr
Oct 29 '13 at 17:21
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Why is LINQ JOIN so much faster than linking with WHERE?
...pecify the relation, it has to create every possible combination, and then test the condition to see which combinations are relevant.
The Join method can set up a hash table to use as an index to quicky zip two tables together, while the Where method runs after all the combinations are already crea...
Query for array elements inside JSON type
I'm trying to test out the json type in PostgreSQL 9.3.
I have a json column called data in a table called reports . The JSON looks something like this:
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What's the idiomatic syntax for prepending to a short python list?
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If someone finds this question like me, here are my performance tests of proposed methods:
Python 2.7.8
In [1]: %timeit ([1]*1000000).insert(0, 0)
100 loops, best of 3: 4.62 ms per loop
In [2]: %timeit ([1]*1000000)[0:0] = [0]
100 loops, best of 3: 4.55 ms per loop
In [3]: %timeit [0]...
What is the largest Safe UDP Packet Size on the Internet
... are) dropped. You cannot "rely" on any specific packet arrival, order, or confirmation. Data is fragile, and it's like saying car steering that works 99% of the time, and 89% in the right direction, is reliable. Not that UDP isn't great for many things, just that it requires you to basically write ...
Write to UTF-8 file in Python
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you can also use codecs.open('test.txt', 'w', 'utf-8-sig') instead
– beta-closed
Aug 24 '16 at 15:04
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