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What does an exclamation mark mean in the Swift language?
...sn't seem to be true anymore. In a Swift 5 repl, if I do let f: String! = "hello" and then print(f), the output is Optional("hello") instead of just "hello".
– numbermaniac
May 9 at 2:20
...
PHP passing $_GET in linux command prompt
...argv global variable or getopt:
// bash command:
// php -e myscript.php hello
echo $argv[1]; // prints hello
// bash command:
// php -e myscript.php -f=world
$opts = getopt('f:');
echo $opts['f']; // prints world
$_GET refers to the HTTP GET method parameters, which are unavailable in comman...
Difference between HashSet and HashMap?
...Set of string elements then it could depict a
set of HashSet elements: {“Hello”, “Hi”, “Bye”, “Run”}
HashSet does not allow duplicate elements that mean you
can not store duplicate values in HashSet.
HashSet permits to have a single null value.
HashSet is not synchronized which mea...
Get name of object or class
... function App() {
}
App.prototype.hello = function () {
console.log('Hello App');
};
return App;
})();
Common.App = App;
})(Web.Common || (Web.Common = {}));
var Commo...
Can I create links with 'target=“_blank”' in Markdown?
...ust have to use HTML.
<a href="http://example.com/" target="_blank">Hello, world!</a>
Most Markdown engines I've seen allow plain old HTML, just for situations like this where a generic text markup system just won't cut it. (The StackOverflow engine, for example.) They then run the en...
How can I remove a trailing newline?
...pecified characters at the end of the string, not just one:
>>> "Hello\n\n\n".rstrip("\n")
"Hello"
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Can gcc output C code after preprocessing?
... C source to CMakeFiles/main.dir/main.c.i
/usr/bin/cc -E /home/ciro/bak/hello/main.c > CMakeFiles/main.dir/main.c.i
so the file can be seen at CMakeFiles/main.dir/main.c.i
Tested on cmake 3.16.1.
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How can I parse a YAML file in Python
...
Hello @Anthon. I was usiing ruamel's but got an issue with documents that are not ascii compliant (UnicodeDecodeError: 'ascii' codec can't decode byte 0xe7 in position 926: ordinal not in range(128)). I've tried to set yaml.e...
How to use Session attributes in Spring-mvc
...w it and just tested it - working perfect here:
@GetMapping
public String hello(HttpSession session) {
session.setAttribute("name","value");
return "hello";
}
p.s.
I came here searching for an answer of "How to use Session attributes in Spring-mvc", but read so many without seeing the mos...
JavaScript window resize event
...ke so...
window.addEventListener('resize', debounce(() => console.log('hello'),
200, false), false);
It will never fire more than once every 200ms.
For mobile orientation changes use:
window.addEventListener('orientationchange', () => console.log('hello'), false);
Here's a small library...