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Delete a key from a MongoDB document using Mongoose
... as usual.
Read more in mongoose api-ref:
http://mongoosejs.com/docs/api.html#document_Document-toObject
Example would look something like this:
User.findById(id, function(err, user) {
if (err) return next(err);
let userObject = user.toObject();
// userObject is plain object
});
...
How to run a makefile in Windows?
...rovided you have a Makefile.
make -f Makefile
https://cygwin.com/install.html
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How can I find the current OS in Python? [duplicate]
...
https://docs.python.org/library/os.html
To complement Greg's post, if you're on a posix system, which includes MacOS, Linux, Unix, etc. you can use os.uname() to get a better feel for what kind of system it is.
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CSS Child vs Descendant selectors
...ncestor (e.g. Joe and his great-great-grand-father)
In practice: try this HTML:
<div class="one">
<span>Span 1.
<span>Span 2.</span>
</span>
</div>
<div class="two">
<span>Span 1.
<span>Span 2.</span>
</span>
</d...
“Wrap with try…catch” in IntelliJ?
...s.com/help/idea/2016.2/surrounding-blocks-of-code-with-language-constructs.html
If you are using Ubuntu and already read above answers you may see that default key shortcut for surround with Ctrl+Alt+T is open terminal in Ubuntu.
So one way to use surround with is, in Menu Code -> Surround with....
Replace string within file contents
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Using pathlib (https://docs.python.org/3/library/pathlib.html)
from pathlib import Path
file = Path('Stud.txt')
file.write_text(file.read_text().replace('A', 'Orange'))
If input and output files were different you would use two different variables for read_text and write_text.
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How do I get the current absolute URL in Ruby on Rails?
...the method is at http://api.rubyonrails.org/classes/ActionDispatch/Request.html#method-i-original_url but if you're curious the implementation is:
def original_url
base_url + original_fullpath
end
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What is the default access modifier in Java? [duplicate]
.../codeinventions.blogspot.com/2014/09/default-access-modifier-in-java-or-no.html
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What is the meaning of symbol $ in jQuery?
...eady (similar to
body.onload() but better).
You can pass it a string of HTML to turn
into a DOM element which you can
then inject into the document.
You can pass it a DOM element or
elements that you want to wrap with
the jQuery object.
Here is the documentation: https://api.jquery.com/jQuer...
PHP Get all subdirectories of a given directory
...
Try this code:
<?php
$path = '/var/www/html/project/somefolder';
$dirs = array();
// directory handle
$dir = dir($path);
while (false !== ($entry = $dir->read())) {
if ($entry != '.' && $entry != '..') {
if (is_dir($path . '/' .$entry)) {
...