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What is the point of interfaces in PHP?
...ses?
To prevent multiple inheritance (can cause multiple known problems).
One of such problems:
The "diamond problem" (sometimes referred to as the "deadly diamond of
death") is an ambiguity that arises when two classes B and C inherit
from A and class D inherits from both B and C. If there...
How to uncommit my last commit in Git [duplicate]
... and means "the commit before". So, HEAD^ is the commit before the current one, just as master^ is the commit before the tip of the master branch.
Here's the portion of the git-rev-parse documentation describing all of the ways to specify commits (^ is just a basic one among many).
...
How does Dijkstra's Algorithm and A-Star compare?
...
Great answer for anyone that knows heuristics ;)
– lindhe
May 19 '15 at 8:44
1
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Difference between Bridge pattern and Adapter pattern
...pattern example, imagine if you had a few implementations of a data store: one is efficient in space, the other is efficient in raw performance... and you have a business case for offering both in your app or framework.
In terms of your question, "where I can use which pattern," the answer is, wher...
Mismatch Detected for 'RuntimeLibrary'
...hat the above two pieces of code are called A and B. A is compiled against one version of the standard library, and B against another. In A's view, some random object that a standard function returns to it (e.g. a block of memory or an iterator or a FILE object or whatever) has some specific size an...
Java Enum definition
...eric in both the builder and the message. I'm pretty sure I wouldn't have gone down that route if I hadn't needed it though :)
– Jon Skeet
Mar 22 '12 at 6:45
1
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How does push notification technology work on Android?
...implemented their push notification feature? Does it work through polling done by a service running in the background or in a different way?
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cartesian product in pandas
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So to do this properly one has to first find an unused column name, then add dummy columns with that name, merge, and finally drop the column on the result? Creating, as opposed to reading, data with pandas is just a pain
– Ba...
Why can't yield return appear inside a try block with a catch?
...e language with a 99.9% accurate compiler (yes, there are bugs; I ran into one on SO just the other day) than a more flexible language which couldn't compile correctly.
EDIT: Here's a pseudo-proof of how it why it's feasible.
Consider that:
You can make sure that the yield return part itself doe...
NodeJS / Express: what is “app.use”?
...ll add onto your Express middleware stack. Middleware layers can be added one by one in multiple invocations of use, or even all at once in series with one invocation.
See use documentation for more details.
To give an example for conceptual understanding of Express Middleware, here is what my app...