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What is the difference between gsub and sub methods for Ruby Strings
I have been perusing the documentation for String today, and I saw the :sub method, which I'd never noticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks!
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Difference between scaling horizontally and vertically for databases [closed]
I have come across many NoSQL databases and SQL databases. There are varying parameters to measure the strength and weaknesses of these databases and scalability is one of them. What is the difference between horizontally and vertically scaling these databases?
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Rails raw SQL example
...e in rails? Because When I deploy this code in heroku,there is a request timeout error.I think this will be faster if I use raw sql.
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(Built-in) way in JavaScript to check if a string is a valid number
I'm hoping there's something in the same conceptual space as the old VB6 IsNumeric() function?
37 Answers
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When do I use the PHP constant “PHP_EOL”?
...ain a "big project" that is deployed in part on several hosts, including some windows servers. Don't assume -- the constants don't hurt anything, and are a perfectly valid way to write platform-neutral code. Your comments to the contrary are somewhat absurd.
– Chris Baker
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How to call Android contacts list?
... list function, pick a contact, then return to my app with the contact's name. Here's the code I got on the internet, but it doesnt work.
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Using Razor, how do I render a Boolean to a JavaScript variable?
... can just call model.IsFollowing (Sorry I don't know how to format the comment code properly)
– Jynn
Apr 13 '17 at 9:06
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How do I tokenize a string in C++?
Java has a convenient split method:
35 Answers
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...table or a prefix tree what are the discriminating factors that would lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (assuming the longest key is the longest...
How to copy commits from one branch to another?
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You should really have a workflow that lets you do this all by merging:
- x - x - x (v2) - x - x - x (v2.1)
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x - x - x (wss)
So all you have to do is git checkout v2.1 and git merge wss. If for some reason you really can't do this, and you can't use git rebase ...