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What is the preferred syntax for defining enums in JavaScript?
...t.freeze(DaysEnum)
and voila! JS enums.
However, this doesn't prevent you from assigning an undesired value to a variable, which is often the main goal of enums:
let day = DaysEnum.tuesday
day = 298832342 // goes through without any errors
One way to ensure a stronger degree of type safety (with e...
How to convert a number to string and vice versa in C++
...ert a string to a number in C++03
The most lightweight option, inherited from C, is the functions atoi (for integers (alphabetical to integer)) and atof (for floating-point values (alphabetical to float)). These functions take a C-style string as an argument (const char *) and therefore their usag...
How to use subprocess popen Python
...
subprocess.Popen takes a list of arguments:
from subprocess import Popen, PIPE
process = Popen(['swfdump', '/tmp/filename.swf', '-d'], stdout=PIPE, stderr=PIPE)
stdout, stderr = process.communicate()
There's even a section of the documentation devoted to helping use...
call a static method inside a class?
how do i call a static method from another method inside the same class?
4 Answers
4
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Shall we always use [unowned self] inside closure in Swift
...e class owns something that owns the closure.
Specifically in the example from the video
In the example on the slide, TempNotifier owns the closure through the onChange member variable. If they did not declare self as unowned, the closure would also own self creating a strong reference cycle.
Dif...
Hiding user input on terminal in Linux script
...choes silently". ss64.com/bash/read.html Silent mode. If input is coming from a terminal, characters are not echoed.
– Andreas Wong
Oct 7 '15 at 3:45
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Function to return only alpha-numeric characters from string?
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Hide Spinner in Input Number - Firefox 29
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Some more useful information from Geoff Graham: Numeric Inputs – A Comparison of Browser Defaults
– Richard Deeming
Mar 25 '15 at 19:58
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How to customize user profile when using django-allauth
...ngo project with the django-allauth app. I need to collect additional data from the user at signup. I came across a similar question here but unfortunately, no one answered the profile customization part.
...
How do you return a JSON object from a Java Servlet
...response.setContentType("application/json");
// Get the printwriter object from response to write the required json object to the output stream
PrintWriter out = response.getWriter();
// Assuming your json object is **jsonObject**, perform the following, it will return your json object
out.p...