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How to remove element from an array in JavaScript?
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If you come here from Google: Gabriel prefers this answer, but you should be aware there is also shift(), see Joseph's answer.
– SHernandez
Jul 29 '14 at 21:12
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Use RSA private key to generate public key?
...if you have the private key then you can calculate (derive) the public key from it - which is what the 2nd command above does. It calculates, not extracts, the public key.
– steveayre
Feb 27 '13 at 14:59
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Show a popup/message box from a Windows batch file
Is there a way to display a message box from a batch file (similar to how xmessage can be used from bash-scripts in Linux)?
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How exactly does the callstack work?
...pile time and are therefore hardcoded into the machine code.
This graphic from Wikipedia shows what the typical call stack is structured like1:
Add the offset of a variable we want to access to the address contained in the frame pointer and we get the address of our variable. So shortly said, th...
Why does range(start, end) not include end?
...with x and end with y-1. If the programmer wants a for-loop with i ranging from 1 to 3, he has to explicitly add 1. Is this really about convenience?
– armin
Jul 24 '16 at 14:42
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MySQL Delete all rows from table and reset ID to zero
I need to delete all rows from a table but when I add a new row, I want the primary key ID, which has an auto increment, to start again from 0 respectively from 1.
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Get the latest record from mongodb collection
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Yet another way of getting the last item from a MongoDB Collection (don't mind about the examples):
> db.collection.find().sort({'_id':-1}).limit(1)
Normal Projection
> db.Sports.find()
{ "_id" : ObjectId("5bfb5f82dea65504b456ab12"), "Type" : "NFL", "Head"...
In Django - Model Inheritance - Does it allow you to override a parent model's attribute?
...e an abstract model representing a "Place", eg. AbstractPlace, and inherit from it:
class AbstractPlace(models.Model):
name = models.CharField(max_length=20)
rating = models.DecimalField()
class Meta:
abstract = True
class Place(AbstractPlace):
pass
class LongNamedRestaur...
to remove first and last element in array
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fruits.shift(); // Removes the first element from an array and returns only that element.
fruits.pop(); // Removes the last element from an array and returns only that element.
See all methods for an Array.
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Git: How to update/checkout a single file from remote origin master?
...area).
The checkout will update the working tree with the particular file from the downloaded changes (origin/master).
At least this works for me for those little small typo fixes, where it feels weird to create a branch etc just to change one word in a file.
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