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Multi-line string with extra space (preserved indentation)
...EOM
Line 1.
Line 2.
EOM
You could also store these lines to a variable:
read -r -d '' VAR << EOM
This is line 1.
This is line 2.
Line 3.
EOM
This stores the lines to the variable named VAR.
When printing, remember the quotes around the variable otherwise you won't see the newline charact...
“Large data” work flows using pandas
...f gigabytes of data in just this fashion
e.g. I have tables on disk that I read via queries, create data and append back.
It's worth reading the docs and late in this thread for several suggestions for how to store your data.
Details which will affect how you store your data, like:
Give as much de...
How can I check the syntax of Python script without executing it?
...
import sys
filename = sys.argv[1]
source = open(filename, 'r').read() + '\n'
compile(source, filename, 'exec')
Save this as checker.py and run python checker.py yourpyfile.py.
share
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Inherit from a generic base class, apply a constraint, and implement an interface in C#
...ommendation: when you have a question about the syntax of the C# language, read the specification; that's why we publish it. You'll want to read section 10.1.
To answer your specific question, the order of things in a class declaration is:
attributes, in square brackets
modifiers ("public", "sta...
Code Golf: Lasers
...ng the way -- fortunately "6" is not a valid input char.
$_ = <>;
Read the board into $_.
$s="#";
$s is the symbol of whatever the beam is sitting on top of now. Since the laser emitter is to be treated like a wall, set this to be a wall to begin with.
if (tr/v<^/>v</) {
my $...
What does DIM stand for in Visual Basic and BASIC?
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I remember reading a gw-basic programming guide in the early 80's and I explicitly remember it explaining DIM meaning Declare In Memory. Reading the Darthmouth Basic guide from '64 has LET and READ statements assign variables and their...
Is it alright to use target=“_blank” in HTML5?
I recall reading somewhere that in HTML5 it was no longer okay to use target="_blank" in HTML5, but I can't find it now.
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Best introduction to C++ template metaprogramming? [closed]
...f programs at compile-time. A light bulb went off in my head as soon as I read this canonical metaprogramming example:
8 A...
Real world example about how to use property feature in python?
I am interested in how to use @property in Python. I've read the python docs and the example there, in my opinion, is just a toy code:
...
Immutable class?
... It is difficult to maintain correctness in mutable objects, as multiple threads could be trying to change the state of the same object, leading to some threads seeing a different state of the same object, depending on the timing of the reads and writes to the said object.
By having an immutable ob...