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How to search in array of object in mongodb
...hout $elemMatch mongo will look for users with National Medal in some year and some award in 1975s, but not for users with National Medal in 1975.
See MongoDB $elemMatch Documentation for more info. See Read Operations Documentation for more information about querying documents with arrays.
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When to use in vs ref vs out
...use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothetical or code) examples where I should always use...
How do I install pip on macOS or OS X?
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If you are behind a proxy, make sure http_proxy and https_proxy are set correctly, then use the '-E' option with sudo: sudo -E easy_install pip
– Neil Schaper
Aug 4 '14 at 20:10
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How to implement an ordered, default dict? [duplicate]
I would like to combine OrderedDict() and defaultdict() from collections in one object, which shall be an ordered, default dict .
Is this possible?
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How do I remove all HTML tags from a string without knowing which tags are in it?
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Yes, because it strips everything between < and >, so in your case, < 10 <b> and </b> are both stripped.
– Bidou
Oct 3 '17 at 16:00
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Iterate over object keys in node.js
... solution is finding a node module that extends V8 to implement iterators (and probably generators). I couldn't find any implementation. You can look at the spidermonkey source code and try writing it in C++ as a V8 extension.
You could try the following, however it will also load all the keys into...
Which is the correct shorthand - “regex” or “regexp” [closed]
...ngines don't support the question mark but they suck ;-) Anyway Perl does, and it's the closest thing to a "standard" for regular expression syntax.
– David Z
Jun 17 '10 at 1:27
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Command to get nth line of STDOUT
Is there any bash command that will let you get the nth line of STDOUT?
13 Answers
13
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Setting default value for TypeScript object passed as argument
...e argument object, with key=value for any defaults. Follow that with the : and a type declaration.
This is a little different than what you were trying to do, because instead of having an intact params object, you have instead have dereferenced variables.
If you want to make it optional to pass an...
How can I set NODE_ENV=production on Windows?
...tained), use
set NODE_ENV=production
This should be executed in the command prompt where you intend to run your Node.js application.
The above line would set the environment variable NODE_ENV for the command prompt where you execute the command.
To set environment variables globally so they per...