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How to find and return a duplicate value in array
...
a = ["A", "B", "C", "B", "A"]
a.detect{ |e| a.count(e) > 1 }
I know this isn't very elegant answer, but I love it. It's beautiful one liner code. And works perfectly fine unless you need to process huge data set.
Looking for faster solution? Here you go!
def find_one_using_hash_map(arr...
Concatenating two lists - difference between '+=' and extend()
...
The only difference on a bytecode level is that the .extend way involves a function call, which is slightly more expensive in Python than the INPLACE_ADD.
It's really nothing you should be worrying about, unless you're performing this...
How to uninstall Python 2.7 on a Mac OS X 10.6.4?
...n.PythonProfileChanges-2.7
org.python.Python.PythonUnixTools-2.7
you can now select which packages you will unlink (remove).
This is the unlink documentation:
--unlink package-id
Unlinks (removes) each file referenced by package-id. WARNING: This command makes no attempt to perfor...
How to fix Error: laravel.log could not be opened?
...the folder belonged to the user in the real computer; so, when trying to
Now it's working.
Thanks to all those that helped me figure this thing out
EDIT:
Actually, it still wasn't working, it still gave me a "permission denied" problem.
Here's what I did, I modified my Vagrantfile like this:
...
JavaScript Regular Expression Email Validation [duplicate]
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If you define your regular expression as a string then all backslashes need to be escaped, so instead of '\w' you should have '\\w'.
Alternatively, define it as a regular expression:
var pattern = /^\w+@[a-zA-Z_]+?\.[a-zA-Z...
How to find day of week in php in a specific timezone
... Europe/Stockholm to the users time-zone.
$dateTime = new \DateTime(
'now',
new \DateTimeZone('Europe/Stockholm')
);
$day = $dateTime->format('N');
ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0)
1 (for Monday) through 7 (for Sunday)
http://php.net/ma...
ADB Android Device Unauthorized
...k if you are agree to connect the computer id.
You need to confirm it.
5. Now Check the device
It is now authorized!
adb devices
<ANDROID_SDK_HOME>\platform-tools>adb devices
List of devices attached
4df798d76f98cf6d device
...
How do I get the real .height() of a overflow: hidden or overflow: scroll div?
...ecommend using this for SEO matters it might seems weird to screen reader. If you do this, you would have to put the HTML in a div only for the time you're reading it and remove it immediatly after with javascript. But the accepted answer is better for this situation
– Yann Cha...
How do I create an average from a Ruby array?
...viously, an average only makes sense for things that can be averaged). But if you want to go that route, use this:
class Array
def sum
inject(0.0) { |result, el| result + el }
end
def mean
sum / size
end
end
If you haven't seen inject before, it's not as magical as it might appe...
What is a “context bound” in Scala?
...lished, but context bounds are preferred over view bounds (view bounds are now deprecated). One suggestion is that a context bound is preferred when you need to transfer an implicit definition from one scope to another without needing to refer to it directly (this is certainly the case for the Cla...