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List comprehension rebinds names even after scope of comprehension. Is this right?
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List comprehensions leak the loop control variable in Python 2 but not in Python 3. Here's Guido van Rossum (creator of Python) explaining the history behind this:
We also made another change in Python
3, to improve equivalence between list
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Enabling ProGuard in Eclipse for Android
...swers here are outdated - lately the base proguard config is here in the sdk dir - so you only have to put this into your project.properties:
proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt
if you want to make project-specific modifications, create a proguard-project.txt and change...
How to sort an array in Bash
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Supports whitespace in elements (as long as it's not a newline), and works in Bash 3.x.
e.g.:
$ array=("a c" b f "3 5")
$ IFS=$'\n' sorted=($(sort <<<"${array[*]}")); unset IFS
$ printf "[%s]\n" "${sorted[@]}"
[3 5]
[a c]
[b]
[f]
Note: @sorontar has pointed out that care is required ...
Check if a string contains an element from a list (of strings)
For the following block of code:
10 Answers
10
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Rails: update_attribute vs update_attributes
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Please refer to update_attribute. On clicking show source you will get following code
# File vendor/rails/activerecord/lib/active_record/base.rb, line 2614
2614: def update_attribute(name, value)
2615: send(name.to_s + '=', value)
2616: ...
How do I compare two string variables in an 'if' statement in Bash? [duplicate]
I'm trying to get an if statement to work in Bash (using Ubuntu ):
12 Answers
12
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Get screen width and height in Android
...dth = displayMetrics.widthPixels;
In a view you need to do something like this:
((Activity) getContext()).getWindowManager()
.getDefaultDisplay()
.getMetrics(displayMetrics);
In some scenarios, where devices have a navigation bar, you have ...
How to communicate between iframe and the parent site?
...frame isn't located in the same domain , but both are mine, and I would like to communicate between the iframe and the parent site. Is it possible?
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Using Java with Nvidia GPUs (CUDA)
I'm working on a business project that is done in Java, and it needs huge computation power to compute business markets. Simple math, but with huge amount of data.
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SVN checkout ignore folder
Can I ignore a folder on svn checkout? I need to ignore DOCs folder on checkout at my build server.
10 Answers
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