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node.js remove file
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to check files can be deleted or not, Use fs.access instead
fs.access('/etc/passwd', fs.constants.R_OK | fs.constants.W_OK, (err) => {
console.log(err ? 'no access!' : 'can read/write');
});
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How to get GET (query string) variables in Express.js on Node.js?
...hat the path/route parameters object (req.params) has array properties, so order matters (although this may change in Express 4)
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How to calculate moving average without keeping the count and data-total?
...t that it's not actually a rolling average, your stated value is off by an order of magnitude. With avg initialized to 0, you end up with 3.36 after 5 5s, and 4.46 after 10: cpp.sh/2ryql For long averages, this is certainly a useful approximation.
– cincodenada
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How can I convert a Unix timestamp to DateTime and vice versa?
...seconds... A double is a floating number. The argument should be int/long/etc.
– ccook
Mar 4 '13 at 14:59
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How do you move a file?
...orge SVN repository. I'd like to move a file from one folder to another in order to maintain its revision history. Is this possible? If so, how do you do it?
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How do I import global modules in Node? I get “Error: Cannot find module ”?
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This makes your .node_modules folder searchable, but in order to import modules using require(), they should still be installed in your local project directory (or alternatively, linked using npm link). Global modules cannot be imported in projects, only binaries/scripts can be ru...
How to use split?
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According to MDN, the split() method divides a String into an
ordered set of substrings, puts these substrings into an array, and
returns the array.
???? Example
var str = 'Hello my friend'
var split1 = str.split(' ') // ["Hello", "my", "friend"]
var split2 = str.split('') // ["H"...
Can I make a not submit a form?
...e things like images or tables (not sure why you'd do this, but you could) etc while input doesn't support that. There is a difference between the two, and each one has their appropriate use case.
– R0MANARMY
Jul 23 '10 at 14:06
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How can you run a command in bash over until success
...d non-zero if the passwd change failed (wrong password, password mismatch, etc...)
passwd
while [ $? -ne 0 ]; do
passwd
done
With your backtick version, you're comparing passwd's output, which would be stuff like Enter password and confirm password and the like.
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Passing parameters in rails redirect_to
...g for a way to pass additional URL parameters (not controller, action, id, etc), here's a robust method for doing so:
object_path(@object, params: request.query_parameters)
That will pass along utm parameters or any other additional params you don't want to lose.
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