For beginners
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/******************************************* | |
* | |
* Javascript Magic Page | |
* | |
* Author: Sergey Ivanov <xufocoder@gmail.com> | |
* | |
* (\_/) | |
* (=':'=) | |
* ▀▀▀███████▀▀▀ | |
* ███████ |
Official learning
3rd Party
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function mapValues(obj, fn) { | |
return Object.keys(obj).reduce((result, key) => { | |
result[key] = fn(obj[key], key); | |
return result; | |
}, {}); | |
} | |
function pick(obj, fn) { | |
return Object.keys(obj).reduce((result, key) => { | |
if (fn(obj[key])) { |
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module.exports = { | |
createArray: (begin, end) => { | |
const result = [] | |
for (let i = begin; i<end+1; i++){ | |
result.push(i) | |
} | |
return result | |
}, | |
fromRoman: (_str) => { | |
var str = _str.toString() |
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module Main exposing (..) | |
import Html exposing (..) | |
import Html.Events exposing (..) | |
import Random | |
main = | |
Html.program | |
{ init = init |
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import Html exposing (Html) | |
import Time exposing (Time, second) | |
main = | |
Html.program | |
{ init = init | |
, view = view | |
, update = update | |
, subscriptions = subscriptions |
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-- Tuple | |
("oh", ("my", (42, "god"))) -- touch the God | |
(("Hello", 100), ("World", 200)) -- need "Hello World 300" | |
((((((("Boom has been planted"))))))) -- tuple? | |
-- Record | |
myRecord = |
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module Main exposing (..) | |
import Collage exposing (Form, collage, filled, move, rect) | |
import Color exposing (Color, rgb) | |
import Element exposing (toHtml) | |
import Html exposing (Html) | |
import Keyboard | |
import Mouse | |
import Random | |
import Time exposing (Time, millisecond) |
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const curry = ( | |
f, arr = [] | |
) => (...args) => ( | |
a => a.length === f.length ? | |
f(...a) : | |
curry(f, a) | |
)([...arr, ...args]); |
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