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How can I merge two hashes without overwritten duplicate keys in Ruby?
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If you have two hashes, options and defaults, and you want to merge defaults into options without overwriting existing keys, what you really want to do is the reverse: merge options into defaults:
options = defaults.merge(options)
Or, if you're using Rai...
What are the differences between a UIView and a CALayer?
..., both represent different data.
What are the differences between a UIView and a CALayer?
6 Answers
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Find a pair of elements from an array whose sum equals a given number
Given array of n integers and given a number X, find all the unique pairs of elements (a,b), whose summation is equal to X.
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How do I convert a dictionary to a JSON String in C#?
...ld be better off using a reputable JSON library that already knows how to handle things like escape characters and line breaks. Json.NET is a popular option.
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How do I insert NULL values using PDO?
I'm using this code and I'm beyond frustration:
9 Answers
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Match two strings in one line with grep
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@AlexanderN indeed I cant make it work with multiline, thats so weird it was accepted..
– Aquarius Power
Oct 24 '13 at 3:23
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Display clearColor UIViewController over UIViewController
...ViewController view, such as that the subview/modal should be transparent and whatever components is added to the subview should be visible. The problem is that I have is the subview shows black background instead to have clearColor. I'm trying to make UIView as a clearColor not black background....
What do REFRESH and MERGE mean in terms of databases?
I'm curious and need to find this answer quick. Google won't help much.
2 Answers
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Getting the names of all files in a directory with PHP
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Don't bother with open/readdir and use glob instead:
foreach(glob($log_directory.'/*.*') as $file) {
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}
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Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied
...ecause your user doesn't have the permissions for changing that directory, and the second because your root user doesn't have the right SSH keys for accessing that git repository.
Depending on what you're trying to do, it might be better to clone the repository to a different directory, or maybe ch...