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Various ways to remove local Git changes
... a pathspec referring to the current working directory, which might be the root of the repo. From git-scm.com: git checkout [<tree-ish>] [--] <pathspec>… updates the named paths in the working tree from the index file or from a named <tree-ish>.
– Jerry101
...
In Firebase, is there a way to get the number of children of a node without loading all the node dat
... });
Refer :https://firebase.google.com/docs/functions/database-events
root--|
|-users ( this node contains all users list)
|
|-count
|-userscount :
(this node added dynamically by cloud function with the user count)
...
Git commits are duplicated in the same branch after doing a rebase
... of C5' is different from C5, and this information is also included in the root node of a commit tree affecting the hash result.
– Ozgur Murat
May 26 '17 at 20:00
...
Fastest hash for non-cryptographic uses?
...e all sort of hashes for various purposes. This specific algorithm was the root source of many performance improvements in the current decade.
It's also used in implementations of Bloom Filters. You should be aware that if you're searching for "fast hashes", you're probably facing a typical problem...
Creating a singleton in Python
...r the task.
Here is a quote from http://googletesting.blogspot.com/2008/08/root-cause-of-singletons.html:
Now, there is one kind of Singleton which is OK. That is a singleton where all of the reachable objects are immutable. If all objects are immutable than Singleton has no global state, as everyt...
How do you do a deep copy of an object in .NET? [duplicate]
...ore difficult.
public Person DeepCopy()
{
// Clone the root ...
Person other = (Person) this.MemberwiseClone();
// ... then clone the nested class.
other.Purchase = this.Purchase.ShallowCopy();
return other;
}
}
// Added to demo how to copy...
Passing Data between View Controllers
...dictionaries, with each dictionary representing one row in your table. The root view for your app displays that table, and it might be responsible for loading the array from a file. When the user decides to add a new row to the table, they tap some button and your controller creates a new (mutable) ...
Merging: Hg/Git vs. SVN
...urial too I suppose) propose the rebase --onto option to rebase (reset the root of the branch) part of a branch:
From Jefromi's post
- x - x - x (v2) - x - x - x (v2.1)
\
x - x - x (v2-only) - x - x - x (wss)
you can untangle this situation where you have patches for the v...
What is “entropy and information gain”?
...ith low uncertainty/entropy). This process is applied recursively from the root-node down, and stops when a leaf node contains instances all having the same class (no need to split it further).
Note that I skipped over some details which are beyond the scope of this post, including how to handle nu...
Evenly distributing n points on a sphere
...um_pts); how did I come to that one? (Note 2.)
Well, I am using the square root here because I want these to have even-area spacing around the disk. That is the same as saying that in the limit of large N I want a little region R ∈ (r, r + dr), Θ ∈ (θ, θ + dθ) to contain a number of points p...