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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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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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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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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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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...
Recover from git reset --hard?
Is there any way to recover uncommitted changes to the working directory from a git reset --hard HEAD ?
22 Answers
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Git copy file preserving history [duplicate]
...lder No. Like git diff -M this is just smart analysis of the tree objects. From the git blame man page: "The origin of lines is automatically followed across whole-file renames (currently there is no option to turn the rename-following off)."
– CliffordVienna
A...
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"...
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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Understand convertRect:toView:, convertRect:FromView:, convertPoint:toView: and convertPoint:fromVie
...our example above is pointless (no pun intended) since it converts a point from a view to itself, so nothing will happen. You would more commonly find out where some point of a view was in relation to its superview - to test if a view was moving off the screen, for example:
CGPoint originInSupervie...