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How can I clear previous output in Terminal in Mac OS X?
...unction cls { printf '\33c\e[3J\33c' } line in ~/.profile (or system-wide /etc/profile). This should work for desktop environments in macOS, FreeBSD, Linux etc. Note the extra \33c is for clearing the extra \e[3J literal in non-macOS (basically for Linux/FreeBSD, we only need printf '\33c').
...
How to wait for a number of threads to complete?
...l the respective thread has completed. Threads may complete in a different order than you joining them, but that's not a problem: when the loop exits, all threads are completed.
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fatal error LNK1112: module machine type 'x64' conflicts with target machine type 'X86'
...red this maddening problem, and finally yanked my system back into working order.
These are the things to check, in this order:
Check your properties options in your linker settings at: Properties > Configuration Properties > Linker > Advanced > Target Machine. Select MachineX64 if yo...
Remove files from Git commit
...ft HEAD^
or
git reset --soft HEAD~1
Then reset the unwanted files in order to leave them out from the commit:
git reset HEAD path/to/unwanted_file
Now commit again, you can even re-use the same commit message:
git commit -c ORIG_HEAD
...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
... example). Even if your values are hashable, since sets are semantically unordered, the behavior is undefined in regards to precedence. So don't do this:
>>> c = dict(a.items() | b.items())
This example demonstrates what happens when values are unhashable:
>>> x = {'a': []}
>&g...
What is the difference between an Azure Web Site and an Azure Web Role
...ps, modify registry settings, install performance counters, fine-tune IIS, etc.
Ability to split an app up into tiers (maybe Web Role for front end, Worker Role for backend processing) and scale independently
Ability to RDP into your VM for debugging purposes
Network isolation
Dedicated virtual IP a...
Best way to resolve file path too long exception
...s defined as 260 characters. A local
path is structured in the following order: drive letter, colon,
backslash, name components separated by backslashes, and a terminating
null character. For example, the maximum path on drive D is "D:\some
256-character path string<NUL>" where "<NU...
html5 - canvas element - Multiple layers
...ever you want with them and at the end just render their content in proper order at destination canvas using drawImage on context.
Example:
/* using canvas from DOM */
var domCanvas = document.getElementById('some-canvas');
var domContext = domCanvas.getContext('2d');
domContext.fillRect(50,50,150...
How to use the TextWatcher class in Android?
...er interface has 3 callbacks methods which are all called in the following order when a change occurred to the text:
beforeTextChanged(CharSequence s, int start, int count, int after)
Called before the changes have been applied to the text.
The s parameter is the text before any change is applied....
Upgrade python packages from requirements.txt using pip command
...
I suggest freezing all of your dependencies in order to have predictable builds.
When doing that, you can update all dependencies at once like this:
sed -i '' 's/==/>=/g' requirements.txt
pip install -U -r requirements.txt
pip freeze > requirements.txt
Having do...