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Understanding the map function
... will get errors. In Python 3 map() will stop after finishing with the shortest list. Also, in Python 3, map() returns an iterator, not a list.
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Spring mvc @PathVariable
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Let us assume you hit a url as www.example.com/test/111 .
Now you have to retrieve value 111 (which is dynamic) to your controller method .At time you ll be using @PathVariable as follows :
@RequestMapping(value = " /test/{testvalue}", method=RequestMethod.GET)
public vo...
Why use def main()? [duplicate]
... module without nasty side-effects.
This means it will be possible to run tests against that code.
This means we can import that code into an interactive python shell and test/debug/run it.
Variables inside def main are local, while those outside it are global. This may introduce a few bugs and u...
In JavaScript, why is “0” equal to false, but when tested by 'if' it is not false by itself?
...ormed.
When you do: if ("0") console.log("ha"), the string value is being tested. Any non-empty string is true, while an empty string is false.
Equal (==)
If the two operands are not of the same type, JavaScript converts the operands then applies strict comparison. If either operand is a n...
What is std::promise?
... on the future will raise a "broken promise" exception.
Here is a little test series to demonstrate these various exceptional behaviours. First, the harness:
#include <iostream>
#include <future>
#include <exception>
#include <stdexcept>
int test();
int main()
{
try
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How do I get the function name inside a function in PHP?
...way is to use the __FUNCTION__ predefined magic constant.
Example:
class Test {
function MethodA(){
echo __FUNCTION__;
}
}
Result: MethodA.
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How to redirect all HTTP requests to HTTPS
... link and deploys it to production that IS bad. It SHOULD be caught during testing, even with the redirection in place. I don't like the "could" argument because this "could" happen without the redirection in place. The symptoms are the same when testing in a secure browser, except after confirming...
What is the difference between require() and library()?
...value by default. TRUE if the packages is loaded, FALSE if it isn't.
> test <- library("abc")
Error in library("abc") : there is no package called 'abc'
> test
Error: object 'test' not found
> test <- require("abc")
Loading required package: abc
Warning message:
In library(package, l...
How do you test that a Python function throws an exception?
How does one write a unittest that fails only if a function doesn't throw an expected exception?
13 Answers
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Can I invoke an instance method on a Ruby module without including it?
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I think the shortest way to do just throw-away single call (without altering existing modules or creating new ones) would be as follows:
Class.new.extend(UsefulThings).get_file
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