First, the binky video may help. It’s a nice video about pointers. For arithmetic, here is an example: (Note that incrementing a pointer that contains a null pointer value strictly is undefined behavior. We used NULL because we were only interested in the value of the pointer. Normally, only use increment/decrement when pointing to elements … Read more
Type :colorscheme then Space followed by TAB. or as Peter said, :colorscheme then Space followed by CTRLd The short version of the command is :colo so you can use it in the two previous commands, instead of using the “long form”. If you want to find and preview more themes, there are various websites like … Read more
Updated Answer: If you are using Babel 7.4.0 or newer, then @babel/polyfill has been deprecated. Instead, you will want to use the following at the top of your main js file (likely index.js or similar): Install these packages either with npm: or with yarn: Original Answer: I just encountered this problem and came across the … Read more
Even though they are equivalent, I think there is a pretty good argument that the second form import matplotlib.pyplot as plt is objectively more readable: It is generally customary to use import matplotlib.pyplot as plt and suggested in the matplotlib documentation (see http://matplotlib.org/users/pyplot_tutorial.html etc…) so this will be more familiar to most readers. import matplotlib.pyplot … Read more
npm start will run whatever you have defined for the start command of the scripts object in your package.json file. So if it looks like this: Then npm start will run ng serve.
I am currently on developing a little twitch.tv chatbot. I know, there are like a thousand of them but I would like to create my own, just to have a project – so this is not the point. I was wondering, how the watchtime of a user could be calculated. Just as streamelements.com does it … Read more
i use mac terminal to check my package: i can find all packages include pandas but when i it told me: ModuleNotFoundError: No module named ‘pandas’ by the way, i have python2 and python3 in my mac, they are not the same directory,i suspect python didn’t find the path of pandas
As Russel and Norvig point out in Artificial Intelligence: A Modern Approach (the most commonly used AI textbook) it is challenging to come up with a heuristic that is admissible but not consistent. Obviously, you can select values for nodes in a graph such that the heuristic they represent is admissible but not consistent. This … Read more
I’m used to oveerriding the Java toString() method on my own objects in classes, but I’m not sure where I’m going wrong with the following code: I’m only beginning to learn c++ so any advice would be appreciated
chmod u+x program_name. Then execute it. If that does not work, copy the program from the USB device to a native volume on the system. Then chmod u+x program_name on the local copy and execute that. Unix and Unix-like systems generally will not execute a program unless it is marked with permission to execute. The … Read more