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Package objects
...d[T] = (String, T)
val a: Labelled[Int] = ("count", 1)
def b = a._2
def hello(name: String) = println(i"hello, $name)
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What reason is there to use null instead of undefined in JavaScript?
...nction printArguments(a,b) {
console.log(a,b);
}
printArguments(null, " hello") // logs: null hello
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How does Junit @Rule work?
... folder = tempFolder.newFolder("demos");
File file = tempFolder.newFile("Hello.txt");
assertEquals(folder.getName(), "demos");
assertEquals(file.getName(), "Hello.txt");
}
}
You can see examples of some in-built rules provided by junit at this link.
...
Get list of passed arguments in Windows batch script (.bat)
...e whether or not to run your code block.
So lets say run:
"arg.bat --x hello-world"
I could then use the statement "IF DEFINED --x echo %--x%" and the results would be "hello-world". It should make more sense if you run the batch.
@setlocal enableextensions enabledelayedexpansion
@ECHO off
ECH...
Cleaner way to update nested structures
...t your appetite:
// Test expression
val e = Mul (Num (1), Add (Sub (Var ("hello"), Num (2)), Var ("harold")))
// Increment every double
val incint = everywheretd (rule { case d : Double => d + 1 })
val r1 = Mul (Num (2), Add (Sub (Var ("hello"), Num (3)), Var ("harold")))
expect (r1) (rewrite (...
What is the difference between '@' and '=' in directive scope in AngularJS?
...tive's parent scope, and supports arguments. For example if the method is hello(name) in parent scope, then in
order to execute the method from inside your directive, you must
call $scope.hello({name:'world'})
I find that it's easier to remember these differences by referring to the...
format statement in a string resource file
...cs: String Formatting and Styling:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
In this example, the format string has two arguments: %1$s is a
string and %2$d is a decimal integer. You can format the string with
arguments from your applic...
What is __future__ in Python used for and how/when to use it, and how it works
...iteral syntax for the bytes object. Meaning that statements such as bytes('Hello world', 'ascii') can be simply expressed as b'Hello world'.
generator_stop
Replaces the use of the StopIteration exception used inside generator functions with the RuntimeError exception.
One other use not mentioned ...
A variable modified inside a while loop is not remembered
...set -u
# No idea why you need this, not using here
foo=0
bar="hello"
if [[ "$bar" == "hello" ]]
then
foo=1
echo "Setting \$foo to $foo"
fi
echo "Variable \$foo after if statement: $foo"
lines="first line\nsecond line\nthird line"
function my_...
How to convert std::string to lower case?
...for this:
#include <boost/algorithm/string.hpp>
std::string str = "HELLO, WORLD!";
boost::algorithm::to_lower(str); // modifies str
Or, for non-in-place:
#include <boost/algorithm/string.hpp>
const std::string str = "HELLO, WORLD!";
const std::string lower_str = boost::algorithm::t...