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Can I query MongoDB ObjectId by date?
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Popping Timestamps into ObjectIds covers queries based on dates embedded in the ObjectId in great detail.
Briefly in JavaScript code:
/* This function returns an ObjectId embedded with a given datetime */
/* Accepts both Date object and string input */
function objectIdWit...
Unit Testing: DateTime.Now
...of live code review). I suppose one could write a tool that scans the code base for DateTime.UtcNow and similar, but code reviews is a good idea anyway.
– Mark Seemann
May 10 '18 at 2:12
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How to deserialize a list using GSON or another JSON library in Java?
...ss AbstractList and doesn't override the method remove(int index) from the base class. And if you look at the source code of the AbstractList.remove(int index) you would see it always thrown UnsupportedOperationException. The same is for add() method.
– Bogdan Kornev
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setNeedsLayout vs. setNeedsUpdateConstraints and layoutIfNeeded vs updateConstraintsIfNeeded
...before the animation manually, and the animation only re-lays-out the view based on differences between the old and new ones.
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C# getting its own class name
...e current type, this one should work everywhere:
string className = MethodBase.GetCurrentMethod().DeclaringType.Name;
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How to convert date to timestamp in PHP?
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Arggg. ! Don't forget the ! My date based timestamp was changing on each refresh and driving me mad - because DateTime was helpfully adding the current time without asking or being told. Grrr.
– user672739
Jun 8 '18 at 8:...
Iterate keys in a C++ map
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With C++17 you can use a structured binding inside a range-based for loop (adapting John H.'s answer accordingly):
#include <iostream>
#include <map>
int main() {
std::map<std::string, int> myMap;
myMap["one"] = 1;
myMap["two"] = 2;
myMap["three"]...
What is the difference between a “function” and a “procedure”?
...mands.
The name function comes from math. It is used to calculate a value based on input.
A procedure is a set of command which can be executed in order.
In most programming languages, even functions can have a set of commands. Hence the difference is only in the returning a value part.
But if ...
no acceptable C compiler found in $PATH when installing python
...t in your $PATH variable.
To install gcc use this: (run as root)
Redhat base:
yum groupinstall "Development Tools"
Debian base:
apt-get install build-essential
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Why doesn't C# support the return of references?
...o show to other internal teams to get their feedback. However at this time based on our research we believe that the feature does not have broad enough appeal or compelling usage cases to make it into a real supported language feature. We have other higher priorities and a limited amount of time and...