How do we merge the master branch into the feature branch? Easy: There is no point in forcing a fast forward merge here, as it cannot be done. You committed both into the feature branch and the master branch. Fast forward is impossible now. Have a look at GitFlow. It is a branching model for … Read more
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 windows download nvm-setup.zip extract and install it. … Read more
pow() in the cmath library. More info here. Don’t forget to put #include<cmath> at the top of the file.
Every minor version of Python, that is any 3.x and 2.x version, will install side-by-side with other versions on your computer. Only patch versions will upgrade existing installations. So if you want to keep your installed Python 2.7 around, then just let it and install a new version using the installer. If you want to … Read more
r is a numpy (rec)array. So r[“dt”] >= startdate is also a (boolean) array. For numpy arrays the & operation returns the elementwise-and of the two boolean arrays. The NumPy developers felt there was no one commonly understood way to evaluate an array in boolean context: it could mean True if any element is True, … Read more
I am trying to update npm itself: Responds with: But when I go: I get 1.4.28? How to upgrade the npm itself?
The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may be floating point numbers, e.g., 3.14%0.7 equals 0.34 (since 3.14 equals 4*0.7 + 0.34.) The modulo operator … Read more
Here is some list functions based on Martin v. Löwis’s representation: where w = sys.stdout.write Although doubly linked lists are famously used in Raymond Hettinger’s ordered set recipe, singly linked lists have no practical value in Python. I’ve never used a singly linked list in Python for any problem except educational. Thomas Watnedal suggested a … Read more
Well, the $key => $value in the foreach loop refers to the key-value pairs in associative arrays, where the key serves as the index to determine the value instead of a number like 0,1,2,… In PHP, associative arrays look like this: In the PHP code: $featured is the associative array being looped through, and as … Read more
The current answers are good, but do not talk about how they are just syntactic sugar to some pattern that we are so used to. Let’s start with an example, say we have 10 numbers, and we want a subset of those that are greater than, say, 5. For the above task, the below approaches … Read more