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Ways to implement data versioning in MongoDB
...ake this change at the same time.
UPDATE: 2015-10
It looks like there is now a spec for handling JSON diffs. This seems like a more robust way to store the diffs / changes.
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Git: Permission denied (publickey) fatal - Could not read from remote repository. while cloning Git
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I've now used this answer on 3 new operating systems in the last 5 years and it's worked perfectly every time.
– kotoole
May 13 at 19:14
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Check if an array contains any element of another array in JavaScript
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For now, it might be best to avoid using includes, as apparently it is not supported in IE: stackoverflow.com/questions/36574351/…
– Shafique Jamal
Mar 3 '18 at 2:04
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Update MongoDB field using value of another field
...requests);
}
MongoDB 2.6 and 3.0
From this version you need to use the now deprecated Bulk API and its associated methods.
var bulk = db.collection.initializeUnorderedBulkOp();
var count = 0;
cursor.snapshot().forEach(function(document) {
bulk.find({ '_id': document._id }).updateOne( {
...
How to use JUnit to test asynchronous processes
...cutor {
@Override public void execute(Runnable r) {
r.run();
}
}
Now my JUnit test of the asynchronous method is pretty clean --
@Test public void testDoAsync() {
Executor executor = new SynchronousExecutor();
Foo objectToTest = new Foo(executor);
Callback callback = mock(Callback....
Converting a list to a set changes element order
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In Python 3.6, set() now should keep the order, but there is another solution for Python 2 and 3:
>>> x = [1, 2, 20, 6, 210]
>>> sorted(set(x), key=x.index)
[1, 2, 20, 6, 210]
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How to install python modules without root access?
...ctory:
cat > $HOME/.pydistutils.cfg <<EOF
[install]
user=1
EOF
Now you can run easy_install without root privileges:
easy_install boto
Alternatively, this also lets you run pip without root access:
pip install boto
This works for me.
Source from Wesley Tanaka's blog : http://wtana...
How can I echo HTML in PHP?
...n escape them like so:
echo "<input type=\"text\">";
3. Heredocs
4. Nowdocs (as of PHP 5.3.0)
Template engines are used for using PHP in documents that contain mostly HTML. In fact, PHP's original purpose was to be a templating language. That's why with PHP you can use things like short tags ...
How to insert values into C# Dictionary on instantiation?
Does anyone know if there is a way I can insert values into a C# Dictionary when I create it? I can, but don't want to, do
dict.Add(int, "string") for each item if there is something more efficient like:
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How can I disable ReSharper in Visual Studio and enable it again?
...ack it takes so long to load that ultimately it slows me down even more :( now I'm learning to live with slow typing :(
– SZT
Apr 13 '15 at 19:35
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