const arr = ['', 1, 2, 3, undefined, null]
const result = []
for (let i = 3; i >0; --i) {
result.push(arr.filter(_ => _).reduce((a, b) => a += b, 0))
}
console.log(result.join(''))
$arr = []
foreach($arr as $key => $val)
{
$arr[] = $val
}
import Html exposing (div, button, text)
import Html.App exposing (beginnerProgram)
import Html.Events exposing (onClick)
type Msg
= Increment
main =
beginnerProgram
{ model = 0, view = view
, update = \Increment model -> model + 1 }
view model =
div [] [ div [] [ text (toString model) ]
, button [ onClick Increment ] [ text "+" ] ]
[
{
"title": "apples",
"count": [12000, 20000],
"description": {"text": "...", "sensitive": false}
},
{
"title": "oranges",
"count": [17500, null],
"description": {"text": "...", "sensitive": false}
}
]
@requires_authorization
def somefunc(param1='', param2=0):
r'''A docstring'''
if param1 > param2: # interesting
print 'Gre\'ater'
return (param2 - param1 + 1 + 0b10l) or None
class SomeClass:
pass
>>> message = '''interpreter
... prompt'''
<!DOCTYPE html>
<title>Title</title>
<style>body {width: 500px;}</style>
<script type="application/javascript">
function $init() {return true;}
</script>
<body>
<p checked class="title" id='title'>Title</p>
<!-- here goes the rest of the page -->
</body>
POST /task?id=1 HTTP/1.1
Host: example.org
Content-Type: application/json; charset=utf-8
Content-Length: 137
{
"status": "ok",
"extended": true,
"results": [
{"value": 0, "type": "int64"},
{"value": 1.0e+3, "type": "decimal"}
]
}
#include <iostream>
int main(int argc, char *argv[]) {
/* An annoying "Hello World" example */
for (auto i = 0; i < 0xFFFF; i++)
cout << "Hello, World!" << endl;
char c = '\n';
unordered_map <string, vector<string> > m;
m["key"] = "\\\\"; // this is an error
return -2e3 + 12l;
}
CREATE TABLE "topic" (
"id" serial NOT NULL PRIMARY KEY,
"forum_id" integer NOT NULL,
"subject" varchar(255) NOT NULL
);
ALTER TABLE "topic"
ADD CONSTRAINT forum_id FOREIGN KEY ("forum_id")
REFERENCES "forum" ("id");
-- Initials
insert into "topic" ("forum_id", "subject")
values (2, 'D''artagnian');
(def ^:dynamic chunk-size 17)
(defn next-chunk [rdr]
(let [buf (char-array chunk-size)
s (.read rdr buf)]
(when (pos? s)
(java.nio.CharBuffer/wrap buf 0 s))))
(defn chunk-seq [rdr]
(when-let [chunk (next-chunk rdr)]
(cons chunk (lazy-seq (chunk-seq rdr)))))
using System.IO.Compression;
#pragma warning disable 414, 3021
namespace MyApplication
{
[Obsolete("...")]
class Program : IInterface
{
public static List<int> JustDoIt(int count)
{
Console.WriteLine($"Hello {Name}!");
return new List<int>(new int[] { 1, 2, 3 })
}
}
}
#import <UIKit/UIKit.h>
#import "Dependency.h"
@protocol WorldDataSource
@optional
- (NSString*)worldName;
@required
- (BOOL)allowsToLive;
@end
@property (nonatomic, readonly) NSString *title;
- (IBAction) show;
@end
/**
* @author John Smith <john.smith@example.com>
*/
package l2f.gameserver.model;
public abstract class L2Char extends L2Object {
public static final Short ERROR = 0x0001;
public void moveTo(int x, int y, int z) {
_ai = null;
log("Should not be called");
if (1 > 5) { // wtf!?
return;
}
}
}
import Foundation
@objc class Person: Entity {
var name: String!
var age: Int!
init(name: String, age: Int) {
/* /* ... */ */
}
// Return a descriptive string for this person
func description(offset: Int = 0) -> String {
return "\(name) is \(age + offset) years old"
}
}
@font-face {
font-family: Chunkfive; src: url('Chunkfive.otf');
}
body, .usertext {
color: #F0F0F0; background: #600;
font-family: Chunkfive, sans;
}
@import url(print.css);
@media print {
a[href^=http]::after {
content: attr(href)
}
}
# The Greeter class
class Greeter
def initialize(name)
@name = name.capitalize
end
def salute
puts "Hello #{@name}!"
end
end
g = Greeter.new("world")
g.salute
# Makefile
BUILDDIR = _build
EXTRAS ?= $(BUILDDIR)/extras
.PHONY: main clean
main:
@echo "Building main facility..."
build_main $(BUILDDIR)
clean:
rm -rf $(BUILDDIR)/*
package main
import "fmt"
func main() {
ch := make(chan float64)
ch <- 1.0e10 // magic number
x, ok := <- ch
defer fmt.Println(`exitting now\`)
go println(len("hello world!"))
return
}
grade = (student, period=(if b? then 7 else 6)) ->
if student.excellentWork
"A+"
else if student.okayStuff
if student.triedHard then "B" else "B-"
else
"C"
class Animal extends Being
constructor: (@name) ->
move: (meters) ->
alert @name + " moved #{meters}m."
#!/bin/bash
###### CONFIG
ACCEPTED_HOSTS="/root/.hag_accepted.conf"
BE_VERBOSE=false
if [ "$UID" -ne 0 ]
then
echo "Superuser rights required"
exit 2
fi
genApacheConf(){
echo -e "# Host ${HOME_DIR}$1/$2 :"
}
; boilerplate
[package]
name = "some_name"
authors = ["Author"]
description = "This is \
a description"
[[lib]]
name = ${NAME}
default = True
auto = no
counter = 1_000
#[derive(Debug)]
pub enum State {
Start,
Transient,
Closed,
}
impl From<&'a str> for State {
fn from(s: &'a str) -> Self {
match s {
"start" => State::Start,
"closed" => State::Closed,
_ => unreachable!(),
}
}
}
<div class="entry">
{{!-- only show if author exists --}}
{{#if author}}
<h1>{{firstName}} {{lastName}}</h1>
{{/if}}
</div>
mergesort([],[]). % special case
mergesort([A],[A]).
mergesort([A,B|R],S) :-
split([A,B|R],L1,L2),
mergesort(L1,S1),
mergesort(L2,S2),
merge(S1,S2,S).
split([],[],[]).
split([A],[A],[]).
split([A,B|R],[A|Ra],[B|Rb]) :- split(R,Ra,Rb).
class MyClass {
public static myValue: string;
constructor(init: string) {
this.myValue = init;
}
}
import fs = require("fs");
module MyModule {
export interface MyInterface extends Other {
myProperty: any;
}
}
declare magicNumber number;
myArray.forEach(() => { }); // fat arrow syntax
