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// OOPS VIOLATION OF LISKOV!! Bad bad

Rectangle {
  width(val) = _width = val 
  height(val) = _height = val
  area() = width() * height()
}

test_area(rect: Rectangle) {
  rect.width(4)

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(* Tennis Kata in OCaml! *)

type player = PlayerOne | PlayerTwo


type point = Love | Fifteen | Thirty


type score =
  | Points of point * point

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var compose = require("fn.js").compose;
var pipeline = require("fn.js").pipeline;
var partial = require("fn.js").partial;
var insertCss = require("insert-css");

insertCss("body { padding: 20px } \
           .selected { font-weight: bold; color: red; font-family: Consolas; font-size: 18px; }\
           .important { color: blue }");

// string, string returns DomElement

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// Prototype of task guard implemented in a more functional style.

var Promise = require("q").Promise;
var pipeline = require("fn.js").pipeline;
var partial = require("fn.js").partial;

// STATE OF THE WORLD, CHANGES GO HERE:
var STATE;

function createState(isDisposed) {

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// Prototype of task guard implemented in a more functional style.

var Promise = require("q").Promise;
var pipeline = require("fn.js").pipeline;
var partial = require("fn.js").partial;

// STATE OF THE WORLD, CHANGES GO HERE:
var STATE;

function createState(isDisposed) {

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if (length >= 3 && isIndeterminate) {
    isIndeterminate = false;

} else if (length > 0 && length < 3 && !isIndeterminate) {
    that.hasError(true);

} else {
    that.isQueryTextInvalid(true);
    that.hasError(false);
}

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ko.applyBindingsToDescendants = (function (original) {
    return function (childBindingContext, element) {
        var insertionNodes = ko.utils.domData.get(element, "insertionNodes");

        original.apply(ko, arguments);

        if (insertionNodes) {
            transcludeInto(element, insertionNodes);
        }
    };

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/*
  Sweet.js macros for privacy sugar. 
  Below could be rewritten using es6 weakmaps.
*/
macro privacy {
    rule {} => {
        var id = ++privates.id
        var privMap = {}
        this.__id = id
        privates[id] = privMap

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// requirejs aka "AMD" module

define(["./utils", "./userService"], function (utils, userService) {

  // everthing in here is my module

});

define(function (require) {
  var utils = require("./utils");

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form(data-bind="submit: signIn")
    block content
        +signInErrorMessage()
        +signInInputs()
        +signInSubmitButton()