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Convert light frequency to RGB?
...teachers may have told us (well mine did). Too bad, but in practice not usually fatal.
– Francis Davey
May 29 '10 at 22:58
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Find an element in DOM based on an attribute value
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Update: In the past few years the landscape has changed drastically. You can now reliably use querySelector and querySelectorAll, see Wojtek's answer for how to do this.
There's no need for a jQuery dependency now. If you're using jQuery, great...if you're not, you need not rely it ...
Using smart pointers for class members
...seems like everybody recommends using unique_ptr as the way to go almost all the time. But how would I implement something like this:
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virtualenv --no-site-packages and pip still finding global packages?
... My hero! If you just want to check if that is your issue really quickly, you can run printenv to see if PYTHONPATH is there, and if it is, run unset PYTHONPATH. You'll still have to go track down the problem if you don't want the issue to pop up anymore, but that'll let you get a fr...
How can I hide an HTML table row so that it takes up no space?
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I would really like to see your TABLE's styling. E.g. "border-collapse"
Just a guess, but it might affect how 'hidden' rows are being rendered.
share
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How can I update NodeJS and NPM to the next versions?
I just installed Node.js and npm (for additional modules).
47 Answers
47
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What is the equivalent of “none” in django templates?
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None, False and True all are available within template tags and filters. None, False, the empty string ('', "", """""") and empty lists/tuples all evaluate to False when evaluated by if, so you can easily do
{% if profile.user.first_name == None...
Why start a shell command with a backslash?
...t there are also other well known ways to quote: single and double quotes. All of the following will suppress alias substitution:
\curl
cur\l
\c\u\r\l
"c"url
"curl"
"c""u""r""l"
'curl'
'cu'"rl"
Using \curl is just the most common and readable way. Since this is a standardized feature, you...
Panel.Dock Fill ignoring other Panel.Dock setting
...utline) gives a useful tree-view over the control hierarchy and order, and allows you to change the sibling order of controls.
You can also change sibling order directly in the designer by context menu -> Bring to front / Send to back, which moves the control to be first or last of the siblings....
How can I get file extensions with JavaScript?
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Newer Edit: Lots of things have changed since this question was initially posted - there's a lot of really good information in wallacer's revised answer as well as VisioN's excellent breakdown
Edit: Just because this is the accepted answer; wallacer's answer is indeed much better:
return f...
