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npm command to uninstall or prune unused packages in Node.js
...matically when package-locks are enabled, so this is not necessary except for removing development packages with the --production flag.
Run npm prune to remove modules not listed in package.json.
From npm help prune:
This command removes "extraneous" packages. If a package name is provided, then ...
What is the difference between persist() and merge() in JPA and Hibernate?
... it
becomes managed. The entity X will be
entered into the database at or before
transaction commit or as a result of
the flush operation.
If X is a
preexisting managed entity, it is
ignored by the persist operation.
However, the persist operation is
cascaded to entities referenced...
Why does typeof NaN return 'number'?
...avascript but common computer science principle.
From http://en.wikipedia.org/wiki/NaN:
There are three kinds of operation
which return NaN:
Operations with a NaN as at least one operand
Indeterminate forms
The divisions 0/0, ∞/∞, ∞/−∞, −∞/∞, and −∞/−...
Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
...'m doing it by examining the user agent, but it can be too easily spoofed for reliable OS detection. Is there a surefire way to detect whether the OS on which the browser is running is Mac OS X or Windows? If not, what's better than user agent sniffing?
...
javac is not recognized as an internal or external command, operable program or batch file [closed]
I am experiencing an error while trying to compile Java programs.
6 Answers
6
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In HTML5, should the main navigation be inside or outside the element?
In HTML5, I know that <nav> can be used either inside or outside the page's masthead <header> element. For websites having both secondary and main navigation, it seems common to include the secondary navigation as a <nav> element inside the masthead <header> element ...
Why is there no logical xor in JavaScript?
Why is there no logical xor in JavaScript?
19 Answers
19
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How is a CRC32 checksum calculated?
...ybe I'm just not seeing it, but CRC32 seems either needlessly complicated, or insufficiently explained anywhere I could find on the web.
...
What is the exact problem with multiple inheritance?
...hether multiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
...
How to install a gem or update RubyGems if it fails with a permissions error
I'm trying to install a gem using gem install mygem or update RubyGems using gem update --system , and it fails with this error:
...