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NPM clean modules
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There is actually special command for this job
npm ci
It will delete node_modules directory and will install packages with respect your package-lock.json file
More info: https://docs.npmjs.com/cli/ci.html
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How to parse Excel (XLS) file in Javascript/HTML5
.../ each row being an array of cells.
})
})
In the example above data is raw string data.
It can be parsed to JSON with a strict schema by passing schema argument. See API docs for an example of that.
API docs:
http://npmjs.com/package/read-excel-file
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The tilde operator in C
I've seen the tilde operator used in the ELF hashing algorithm, and I'm curious what it does. (The code is from Eternally Confused .)
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How to convert an object to a byte array in C#
... @Marc: And of course for integers, PB can end up being denser than the raw bytes...
– Jon Skeet
Sep 18 '09 at 21:40
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How does one remove an image in Docker?
I'm running Docker under Vagrant under OS X 10.8.4 (Mountain Lion), and whenever I try to delete a saved image, I get an error:
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What does $$ (dollar dollar or double dollar) mean in PHP?
... variable thas has its name contained in $name"
Which is $real_variable
And has the value 'test'
EDIT after @Jhonny's comment :
Doing a $$$ ?
Well, the best way to know is to try ;-)
So, let's try this portion of code :
$real_variable = 'test';
$name = 'real_variable';
$name_of_name = '...
What's the difference between libev and libevent?
Both 2 libs are designed for async i/o scheduling, and both engages epoll on linux, and kqueue on FreeBSD, etc.
2 Answers
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Notepad++ Multi editing
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Yes: simply press and hold the Alt key, click and drag to select the lines whose columns you wish to edit, and begin typing.
You can also go to Settings > Preferences..., and in the Editing tab, turn on multi-editing, to enable selection o...
Changing cursor to waiting in javascript/jquery
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In your jQuery use:
$("body").css("cursor", "progress");
and then back to normal again
$("body").css("cursor", "default");
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How far can memory leaks go?
...nly thing you need to worry about when dealing with new/delete (instead of raw malloc/free). The memory that's allocated in new may get reclaimed, but things that may be done in the destructors of the objects will not happen. Perhaps the destructor of some class writes a sentinel value into a file...