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What exactly is OAuth (Open Authorization)?
... to join LinkedIn. Adding all of your many, many friends manually is tiresome and error-prone. You might get fed up half-way or insert typos in their e-mail address for invitation. So you might be tempted not to create an account after all.
Facing this situation, LinkedIn has the Good Idea(TM) to w...
Why should I not wrap every block in “try”-“catch”?
I have always been of the belief that if a method can throw an exception then it is reckless not to protect this call with a meaningful try block.
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design a stack such that getMinimum( ) should be O(1)
...integer value such that getMinimum() function should return the minimum element in the stack.
30 Answers
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SQLAlchemy: Creating vs. Reusing a Session
...g sessionmaker() once but calling the resulting Session() class each time you need to talk to your DB. For me that means the second I would do my first session.add(x) or something similar, I would first do
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Build the full path filename in Python
I need to pass a file path name to a module. How do I build the file path from a directory name, base filename, and a file format string?
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What is the difference between single-quoted and double-quoted strings in PHP?
I'm a little confused why I see some code in PHP with string placed in single quotes and sometimes in double quotes.
12 Ans...
How to trigger event when a variable's value is changed?
...ntly creating an application in C# using Visual Studio. I want to create some code so that when a variable has a value of 1 then a certain piece of code is carried out.
I know that I can use an if statement but the problem is that the value will be changed in an asynchronous process so technically t...
The purpose of Model View Projection Matrix
...ject's local coordinate space into world space, view from world space to camera space, projection from camera to screen.
If you compose all three, you can use the one result to map all the way from object space to screen space, making you able to work out what you need to pass on to the next stage ...
Importing from builtin library when module with same name exists
...e accepted solution contains a now-deprecated approach.
The importlib documentation here gives a good example of the more appropriate way to load a module directly from a file path for python >= 3.5:
import importlib.util
import sys
# For illustrative purposes.
import tokenize
file_path = toke...
How to construct a relative path in Java from two absolute paths (or URLs)?
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It's a little roundabout, but why not use URI? It has a relativize method which does all the necessary checks for you.
String path = "/var/data/stuff/xyz.dat";
String base = "/var/data";
String relative = new File(base).toURI().relativize(new File(path).toURI()).getPath();
// relative == "s...