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Convert bytes to a string
...n it in to a character (Unicode) string.
On Python 2
encoding = 'utf-8'
'hello'.decode(encoding)
or
unicode('hello', encoding)
On Python 3
encoding = 'utf-8'
b'hello'.decode(encoding)
or
str(b'hello', encoding)
s...
Accessing a class's constants
... the constant, you can treat it like a global.
class Foo
MY_CONSTANT = "hello"
def bar
MY_CONSTANT
end
end
Foo.new.bar #=> hello
If you're accessing the constant outside of the class, prefix it with the class name, followed by two colons
Foo::MY_CONSTANT #=> hello
...
Is it possible to create static classes in PHP (like in C#)?
...eate an initialize() function and call it in each method:
<?php
class Hello
{
private static $greeting = 'Hello';
private static $initialized = false;
private static function initialize()
{
if (self::$initialized)
return;
self::$greeting .= ' There!...
Difference between app.all('*') and app.use('/')
...cuted first and can do stuff before going next');
next();
});
app.all('/hello', function(req, res, next){
console.log('(3) route middleware for all method and path pattern "/hello", executed second and can do stuff before going next');
next();
});
app.use(function frontControllerMiddlewareNo...
Execute script after specific delay using JavaScript
... the name. The following will call the alert at once, and it will display 'Hello world':
var a = "world";
setTimeout(alert("Hello " + a), 2000);
To fix this you can either put the name of a function (as Flubba has done) or you can use an anonymous function. If you need to pass a parameter, then y...
Single script to run in both Windows batch and Linux Bash?
...iscussion about file extensions because I was writing my portable code in shellouts (e.g., <Exec/> MSBuild Task) rather than as independent batch files. Maybe if I have some time in the future I’ll update the answer with the information in these comments…
– binki
...
Why are there two kinds of functions in Elixir?
...always has a fixed arity.
Now, let's talk about the named functions:
def hello(x, y) do
x + y
end
As expected, they have a name and they can also receive some arguments. However, they are not closures:
x = 1
def hello(y) do
x + y
end
This code will fail to compile because every time you s...
What is Model in ModelAndView from Spring MVC?
...Welcome!");
... then in your jsp, to display the message, you will do:-
Hello Stranger! ${WelcomeMessage} // displays Hello Stranger! Welcome!
Example 2
If you have...
MyBean bean = new MyBean();
bean.setName("Mike!");
bean.setMessage("Meow!");
return new ModelAndView("welcomePage","model",b...
How do you do a simple “chmod +x” from within python?
... effect when file is created
f.write('#!/bin/sh\n')
f.write('echo "hello world"\n')
make_executable(path)
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How do you get a string to a character array in JavaScript?
...safe alternatives.
Just split it by an empty string.
var output = "Hello world!".split('');
console.log(output);
See the String.prototype.split() MDN docs.
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