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What is the main difference between Inheritance and Polymorphism?
...s just wondering what the MAIN difference was for my own piece of mind. I know there are a number of similar questions to this but, none I have seen which provide a definitive answer.
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NSNotificationCenter addObserver in Swift
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Thanks! I didn't know how to pass the selector name in Swift.
– Berry Blue
Jun 4 '14 at 23:30
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Javascript trick for 'paste as plain text` in execCommand
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Seems now that the problem I had was due to calling your script from a file which was itself loaded by a script. I can't paste into neither textarea nor input in your fiddle in FF 47.0.1 (can do it in chrome), but can paste into di...
How does the HyperLogLog algorithm work?
...dom integers, see an integer which binary representation starts with some known prefix, there is a higher chance that the cardinality of the stream is 2^(size of the prefix).
That is, in a random stream of integers, ~50% of the numbers (in binary) starts with "1", 25% starts with "01", 12,5% starts...
How to reset Android Studio
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I only know how to do this on Windows (but it should be similar on any OS, you will just need to find the correct location yourself - google search would help with that).
On Windows:
Go to your User Folder - on Windows 7/8 this w...
Get all unique values in a JavaScript array (remove duplicates)
...et to store unique values. To get an array with unique values you could do now this:
var myArray = ['a', 1, 'a', 2, '1'];
let unique = [...new Set(myArray)];
console.log(unique); // unique is ['a', 1, 2, '1']
The constructor of Set takes an iterable object, like Array, and the spread ope...
How to search contents of multiple pdf files?
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oh that's cool, glad to know there are advantages to this even though it is much less obvious to most people wtf it is doing
– sjr
Oct 16 '13 at 4:30
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Catch multiple exceptions in one line (except block)
I know that I can do:
5 Answers
5
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Linux - Install redis-cli only
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now it isn't working http://security.ubuntu.com/ubuntu bionic-updates/universe amd64 redis-tools amd64 5:4.0.9-1ubuntu0.1 returns 404 Not Found
– Andrew Sneck
Nov 25 '19 at 9:28
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AWS S3 copy files and folders between two buckets
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You can now do it from the S3 admin interface. Just go into one bucket select all your folders actions->copy. Then move into your new bucket actions->paste.
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