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node.js fs.readdir recursive directory search
...ctory search using fs.readdir? I realise that we could introduce recursion and call the read directory function with the next directory to read, but am a little worried about it not being async...
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cannot download, $GOPATH not set
...ults to $HOME/go, but you may still find this useful if you want to understand the GOPATH layout, customize it, etc.]
The official Go site discusses GOPATH and how to lay out a workspace directory.
export GOPATH="$HOME/your-workspace-dir/" -- run it in your shell, then add it to ~/.bashrc or equiv...
What is NODE_ENV and how to use it in Express?
...ode application is run, it can check the value of the environment variable and do different things based on the value. NODE_ENV specifically is used (by convention) to state whether a particular environment is a production or a development environment. A common use-case is running additional debuggi...
Each for object? [duplicate]
...
A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Ja...
What is a “bundle” in an Android application
What is a bundle in an Android application? When to use it?
12 Answers
12
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Create array of regex matches
...an the below if you can assume Java >= 9)
You need to create a matcher and use that to iteratively find matches.
import java.util.regex.Matcher;
import java.util.regex.Pattern;
...
List<String> allMatches = new ArrayList<String>();
Matcher m = Pattern.compile("your regular ex...
Can you remove elements from a std::list while iterating through it?
...
You have to increment the iterator first (with i++) and then remove the previous element (e.g., by using the returned value from i++). You can change the code to a while loop like so:
std::list<item*>::iterator i = items.begin();
while (i != items.end())
{
bool isA...
How to get object length [duplicate]
...to make sure that you're only counting properties from the object literal, and not properties it "inherits" from its prototype.
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What is pip's equivalent of `npm install package --save-dev`?
...oo difficult to write a custom bash script (pips) that takes a -s argument and freezes to your requirements.txt file automatically.
Edit 1
Since writing this there has been no change in providing an auto --save-dev option similar to NPM however Kenneth Reitz (author of requests and many more) has...
Good examples of Not a Functor/Functor/Applicative/Monad?
...ariant functor out of it, but not a (covariant) functor. Try writing fmap and you'll fail. Note that the contravariant functor version is reversed:
fmap :: Functor f => (a -> b) -> f a -> f b
contramap :: Contravariant f => (a -> b) -> f b -> f a
A type constr...