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How to remove an element from an array in Swift
....g:
var animals = ["cats", "dogs", "chimps", "moose"]
animals.remove(at: 2) //["cats", "dogs", "moose"]
A non-mutating alternative that will keep the original collection unchanged is to use filter to create a new collection without the elements you want removed, e.g:
let pets = animals.filter ...
Read stream twice
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edited Apr 27 '17 at 15:09
Captain Man
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Convert data.frame column to a vector?
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211
I'm going to attempt to explain this without making any mistakes, but I'm betting this will at...
USB Debugging option greyed out
I have an LG-E405 phone running Android 2.3.6.
15 Answers
15
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How to find a hash key containing a matching value
... I want to match the client_id? E.g. How to get the key for client_id == "2180" ?
10 Answers
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How do you round a floating point number in Perl?
...ntf() or printf() is usually the easiest
route.
printf("%.3f", 3.1415926535); # prints 3.142
The POSIX module (part of the standard Perl distribution) implements
ceil(), floor(), and a number of other mathematical and trigonometric
functions.
use POSIX;
$ceil = ceil(3.5); ...
Programmatically go back to the previous fragment in the backstack
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12 Answers
12
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Best practices for SQL varchar column length [closed]
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244
No DBMS I know of has any "optimization" that will make a VARCHAR with a 2^n length perform be...