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How to use filter, map, and reduce in Python 3
filter , map , and reduce work perfectly in Python 2. Here is an example:
7 Answers
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What is the purpose of .PHONY in a Makefile?
...e used to build files from other files. Make assumes its target is a file, and this makes writing Makefiles relatively easy:
foo: bar
create_one_from_the_other foo bar
However, sometimes you want your Makefile to run commands that do not represent physical files in the file system. Good example...
How to return a string value from a Bash function
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There is no better way I know of. Bash knows only status codes (integers) and strings written to the stdout.
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Is there any way to create a blank solution (.sln) file first and then add projects?
...ys annoyed me because (to my knowledge) you cannot create a solution first and then add new/existing projects to it. The only way I know how to create a solution is to create a project and specify the solution name for it.
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Difference between one-to-many and many-to-one relationship
What is the real difference between one-to-many and many-to-one relationship? It is only reversed, kind of?
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How to prevent browser to invoke basic auth popup and handle 401 error using Jquery?
...ng jquery. However when I get 401 error basic auth browser popup is opened and jquery ajax error callback is not called.
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How do I update Node.js?
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Use Node Version Manager (NVM)
It's a Bash script that lets you download and manage different versions of node. Full source code is here.
There is a separate project for nvm for Windows: github.com/coreybutler/nvm-windows
Below are the full steps to use NVM for multiple version of node on window...
Using the “final” modifier whenever applicable in Java [closed]
...eywords in your code, but pretty soon you'll stop noticing the word itself and will simply think, that-thing-will-never-change-from-this-point-on (you can take it from me ;-)
I think it's good practice. I am not using it all the time, but when I can and it makes sense to label something final I'll ...
When to delete branches in Git?
...ges (ie, you would lose commits by deleting the branch), git will tell you and won't delete it.
So, deleting a merged branch is cheap and won't make you lose any history.
To delete a remote branch, use git push origin :mybranch, assuming your remote name is origin and the remote branch you want do...
Test if remote TCP port is open from a shell script
I'm looking for a quick and simple method for properly testing if a given TCP port is open on a remote server, from inside a Shell script.
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