You must understand the difference between a class and an instance of that class. If you see a car on the street, you know immediately that it’s a car even if you can’t see which model or type. This is because you compare what you see with the class “car”. The class contains which is similar to … Read more
That feeling when you are looking out for two days and find it like this: just remove .js from “main”: “dist/index.js” in package.json and everything works fine! UPD: this answer relative if you have your own npm package, if not – see my answer below. And if above answer not resolved import your module, try just add typings in package.json: Of course, here folder dist – it’s … Read more
Click on the micon in the services tray near the time and date on Windows and open the menu. It will have the option to start Apache or mySQL or both, so click start than try again to look at localhost:80 in your browser.
One difference (observed in Python 2.7 and 3.8) between getenv() and environ[]: os.getenv() does not raise an exception, but returns None os.environ.get() similarly returns None os.environ[] raises an exception if the environmental variable does not exist
For example,
Just compare the string with itself reversed: This constructor of string takes a beginning and ending iterator and creates the string from the characters between those two iterators. Since rbegin() is the end of the string and incrementing it goes backwards through the string, the string we create will have the characters of input added to it in reverse, reversing the … Read more
Invoke-WebRequest comes with a parameter to store its result in a file: -OutFile If you need authorization before you can send a request like this: To determine the layout of the form where the login happens, you can use Invoke-WebRequests return object. It’ll collect information about forms and fields on the HTML (might be Windows only). Mileage … Read more
To check if a directory exists in a shell script, you can use the following: Or to check if a directory doesn’t exist: However, as Jon Ericson points out, subsequent commands may not work as intended if you do not take into account that a symbolic link to a directory will also pass this check. E.g. running … Read more
Having learned the basics of OpenGL in a 10 week university course that was primarily focused on modeling statistical data, I would definitely think OpenGL would be a reasonable option for an easy to learn graphics package for 2D real time modeling. Although there’s certainly complexity available to OpenGL you don’t need to wrap your … Read more
I find the following code to be much simpler than anything else: Now, calling functions Source – http://www.quirksmode.org/js/cookies.html They updated the page today so everything in the page should be latest as of now.