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public static const in TypeScript
... export const BOOK_SHELF_NONE: string = 'NONE';
}
Then you can import it from anywhere else:
import {Library} from './Library';
console.log(Library.BOOK_SHELF_NONE);
If you need a class there as well include it inside the namespace: export class Book {...}
...
How do I check the operating system in Python?
...
You can use sys.platform:
from sys import platform
if platform == "linux" or platform == "linux2":
# linux
elif platform == "darwin":
# OS X
elif platform == "win32":
# Windows...
sys.platform has finer granularity than sys.name.
For th...
How do I remove/delete a folder that is not empty?
...
From the python docs on os.walk():
# Delete everything reachable from the directory named in 'top',
# assuming there are no symbolic links.
# CAUTION: This is dangerous! For example, if top == '/', it
# could delete all yo...
How does the “final” keyword in Java work? (I can still modify an object.)
...tability; this is achieved by carefully designing the object, and is a far-from-trivial endeavor.
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Reflection generic get field value
...}
}
return null;
}
Also be aware that when your class inherits from another class, you need to recursively determine the Field. for instance, to fetch all Fields of a given class;
for (Class<?> c = someClass; c != null; c = c.getSuperclass())
{
Field[] fields = c.g...
How can I update npm on Windows?
...
I would recommend uninstalling your current node version from "Programs and Features" first...
– wayofthefuture
Mar 8 '17 at 22:01
3
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Running multiple commands with xargs
...ht contain (such as $(rm -rf ~), to take a particularly malicious example) from being executed as code.
Similarly, the use of -d $'\n' is a GNU extension which causes xargs to treat each line of the input file as a separate data item. Either this or -0 (which expects NULs instead of newlines) is nec...
input type=“submit” Vs button tag are they interchangeable?
...ave child nodes; i.e. non-text content. I suppose you could say that aside from brevity is no reason for the latter to exist.
– Paul Draper
Mar 10 '18 at 17:47
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Why Choose Struct Over Class?
Playing around with Swift, coming from a Java background, why would you want to choose a Struct instead of a Class? Seems like they are the same thing, with a Struct offering less functionality. Why choose it then?
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Is there a concise way to iterate over a stream with indices in Java 8?
...
The cleanest way is to start from a stream of indices:
String[] names = {"Sam", "Pamela", "Dave", "Pascal", "Erik"};
IntStream.range(0, names.length)
.filter(i -> names[i].length() <= i)
.mapToObj(i -> names[i])
.coll...