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sed or awk: delete n lines following a pattern
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What's happening is similar but slightly different in each case. In the first recipe, /pattern/,+5 defines a range, which starts with a line containing "pattern" (/pattern/) and ends 5 lines later (+5). The last character d is a command to run on each line in that ...
CSS: Control space between bullet and
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Just to clarify, the <span> tag can be semantic when it is assigned a class, for instance <span class="tel">123-456-7890</span> is implicitly semantic.
– ingyhere
Mar 2 '12 at 2:01...
Can I use __init__.py to define global variables?
...e:
>>> from mypackage import mymodule
my constant is 42
Still, if you do have constants, it would be reasonable (best practices, probably) to put them in a separate module (constants.py, config.py, ...) and then if you want them in the package namespace, import them.
mypackage/__init__....
JavaScript: remove event listener
...t.
var click_count = 0;
function myClick(event) {
click_count++;
if(click_count == 50) {
// to remove
canvas.removeEventListener('click', myClick);
}
}
// to add
canvas.addEventListener('click', myClick);
EDIT: You could close around the click_counter variable like t...
How can you find the height of text on an HTML canvas?
...Ascent and tmDescent returned by Win32's GetTextMetric API. This is needed if you want to do a word-wrapped run of text with spans in different fonts/sizes.
The above image was generated on a canvas in Safari, red being the top line where the canvas was told to draw the text, green being the base...
How do I use vi keys in ipython under *nix?
...n/profile_default/ipython_config.py; create it with ipython profile create if you don't have it) with:
c.TerminalInteractiveShell.editing_mode = 'vi'
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mkdir -p functionality in Python [duplicate]
...system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it?
12 Answers
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jQuery get value of selected radio button
The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id.
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How to retrieve a user environment variable in CMake (Windows)
...--unset=NAME]... [NAME=VALUE]... COMMAND [ARG]...
Run command in a modified environment.
Just be aware that this may only work the first time. If CMake re-configures with one of the consecutive builds (you just call e.g. make, one CMakeLists.txt was changed and CMake runs through the genera...
Why does Decimal.Divide(int, int) work, but not (int / int)?
...me dividing two 32 bit int numbers as ( int / int ) returns to me 0 , but if I use Decimal.Divide() I get the correct answer? I'm by no means a c# guy.
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