From d6916cb3c3975e1b4c42289d4378edb5f7d9f3b8 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Tue, 13 Apr 2021 09:22:36 +0300 Subject: [PATCH 1/9] Added idea folder --- .gitignore | 1 + 1 file changed, 1 insertion(+) diff --git a/.gitignore b/.gitignore index e43b0f988..3d725761b 100644 --- a/.gitignore +++ b/.gitignore @@ -1 +1,2 @@ .DS_Store +.idea \ No newline at end of file From 3e964dfba3c4da82725ebd7523a75964c5a99948 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:02:14 +0300 Subject: [PATCH 2/9] Fixed AboutObject --- koans/AboutObjects.js | 30 +++++++++++++++--------------- 1 file changed, 15 insertions(+), 15 deletions(-) diff --git a/koans/AboutObjects.js b/koans/AboutObjects.js index 9f9ed93cc..b73e005aa 100644 --- a/koans/AboutObjects.js +++ b/koans/AboutObjects.js @@ -8,12 +8,12 @@ describe("About Objects", function () { }); it("should confirm objects are collections of properties", function () { - expect(megalomaniac.mastermind).toBe(FILL_ME_IN); + expect(megalomaniac.mastermind).toBe('Joker'); }); it("should confirm that properties are case sensitive", function () { - expect(megalomaniac.henchwoman).toBe(FILL_ME_IN); - expect(megalomaniac.henchWoman).toBe(FILL_ME_IN); + expect(megalomaniac.henchwoman).toBe('Harley'); + expect(megalomaniac.henchWoman).toBe(undefined); }); }); @@ -29,7 +29,7 @@ describe("About Objects", function () { }; var battleCry = megalomaniac.battleCry(4); - expect(FILL_ME_IN).toMatch(battleCry); + expect('They are Pinky and the Brain Brain Brain Brain').toMatch(battleCry); }); it("should confirm that when a function is attached to an object, 'this' refers to the object", function () { @@ -44,8 +44,8 @@ describe("About Objects", function () { } }; - expect(currentYear).toBe(FILL_ME_IN); - expect(megalomaniac.calculateAge()).toBe(FILL_ME_IN); + expect(currentYear).toBe(2022); + expect(megalomaniac.calculateAge()).toBe(52); }); describe("'in' keyword", function () { @@ -62,27 +62,27 @@ describe("About Objects", function () { var hasBomb = "theBomb" in megalomaniac; - expect(hasBomb).toBe(FILL_ME_IN); + expect(hasBomb).toBe(true); }); it("should not have the detonator however", function () { var hasDetonator = "theDetonator" in megalomaniac; - expect(hasDetonator).toBe(FILL_ME_IN); + expect(hasDetonator).toBe(false); }); }); it("should know that properties can be added and deleted", function () { var megalomaniac = { mastermind : "Agent Smith", henchman: "Agent Smith" }; - expect("secretary" in megalomaniac).toBe(FILL_ME_IN); + expect("secretary" in megalomaniac).toBe(false); megalomaniac.secretary = "Agent Smith"; - expect("secretary" in megalomaniac).toBe(FILL_ME_IN); + expect("secretary" in megalomaniac).toBe(true); delete megalomaniac.henchman; - expect("henchman" in megalomaniac).toBe(FILL_ME_IN); + expect("henchman" in megalomaniac).toBe(false); }); @@ -96,14 +96,14 @@ describe("About Objects", function () { var colouredCircle = new Circle(5); colouredCircle.colour = "red"; - expect(simpleCircle.colour).toBe(FILL_ME_IN); - expect(colouredCircle.colour).toBe(FILL_ME_IN); + expect(simpleCircle.colour).toBe(undefined); + expect(colouredCircle.colour).toBe('red'); Circle.prototype.describe = function () { return "This circle has a radius of: " + this.radius; }; - expect(simpleCircle.describe()).toBe(FILL_ME_IN); - expect(colouredCircle.describe()).toBe(FILL_ME_IN); + expect(simpleCircle.describe()).toBe('This circle has a radius of: 10'); + expect(colouredCircle.describe()).toBe('This circle has a radius of: 5'); }); }); From f731ccd9e0a850e7f985893d407f300983535ede Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:02:46 +0300 Subject: [PATCH 3/9] Fixed about mutability --- koans/AboutMutability.js | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/koans/AboutMutability.js b/koans/AboutMutability.js index fd9b69af2..3089a12af 100644 --- a/koans/AboutMutability.js +++ b/koans/AboutMutability.js @@ -4,7 +4,7 @@ describe("About Mutability", function() { var aPerson = {firstname: "John", lastname: "Smith" }; aPerson.firstname = "Alan"; - expect(aPerson.firstname).toBe(FILL_ME_IN); + expect(aPerson.firstname).toBe('Alan'); }); it("should understand that constructed properties are public and mutable", function () { @@ -16,7 +16,7 @@ describe("About Mutability", function() { var aPerson = new Person ("John", "Smith"); aPerson.firstname = "Alan"; - expect(aPerson.firstname).toBe(FILL_ME_IN); + expect(aPerson.firstname).toBe("Alan"); }); it("should expect prototype properties to be public and mutable", function () { @@ -30,13 +30,13 @@ describe("About Mutability", function() { }; var aPerson = new Person ("John", "Smith"); - expect(aPerson.getFullName()).toBe(FILL_ME_IN); + expect(aPerson.getFullName()).toBe('John Smith'); aPerson.getFullName = function () { return this.lastname + ", " + this.firstname; }; - expect(aPerson.getFullName()).toBe(FILL_ME_IN); + expect(aPerson.getFullName()).toBe('Smith, John'); }); it("should know that variables inside a constructor and constructor args are private", function () { @@ -54,15 +54,15 @@ describe("About Mutability", function() { aPerson.lastname = "Andrews"; aPerson.fullName = "Penny Andrews"; - expect(aPerson.getFirstName()).toBe(FILL_ME_IN); - expect(aPerson.getLastName()).toBe(FILL_ME_IN); - expect(aPerson.getFullName()).toBe(FILL_ME_IN); + expect(aPerson.getFirstName()).toBe('John'); + expect(aPerson.getLastName()).toBe('Smith'); + expect(aPerson.getFullName()).toBe('John Smith'); aPerson.getFullName = function () { return aPerson.lastname + ", " + aPerson.firstname; }; - expect(aPerson.getFullName()).toBe(FILL_ME_IN); + expect(aPerson.getFullName()).toBe('Andrews, Penny'); }); }); From c3abd93859f4511b09ed6266054472957c27d708 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:03:08 +0300 Subject: [PATCH 4/9] Fixed about in heritance --- koans/AboutInheritance.js | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/koans/AboutInheritance.js b/koans/AboutInheritance.js index 5dba545b0..af3062975 100644 --- a/koans/AboutInheritance.js +++ b/koans/AboutInheritance.js @@ -25,20 +25,20 @@ describe("About inheritance", function() { }); it("should be able to call a method on the derived object", function() { - expect(this.swedishChef.cook()).toEqual(FILL_ME_IN); + expect(this.swedishChef.cook()).toEqual("Mmmm soup!"); }); it("should be able to call a method on the base object", function() { - expect(this.swedishChef.answerNanny()).toEqual(FILL_ME_IN); + expect(this.swedishChef.answerNanny()).toEqual("Everything's cool!"); }); it("should set constructor parameters on the base object", function() { - expect(this.swedishChef.age).toEqual(FILL_ME_IN); - expect(this.swedishChef.hobby).toEqual(FILL_ME_IN); + expect(this.swedishChef.age).toEqual(2); + expect(this.swedishChef.hobby).toEqual('cooking'); }); it("should set constructor parameters on the derived object", function() { - expect(this.swedishChef.mood).toEqual(FILL_ME_IN); + expect(this.swedishChef.mood).toEqual("chillin"); }); }); @@ -67,19 +67,19 @@ describe("About Crockford's inheritance improvement", function() { }); it("should be able to call a method on the derived object", function() { - expect(this.gonzo.doTrick()).toEqual(FILL_ME_IN); + expect(this.gonzo.doTrick()).toEqual("eat a tire"); }); it("should be able to call a method on the base object", function() { - expect(this.gonzo.answerNanny()).toEqual(FILL_ME_IN); + expect(this.gonzo.answerNanny()).toEqual("Everything's cool!"); }); it("should set constructor parameters on the base object", function() { - expect(this.gonzo.age).toEqual(FILL_ME_IN); - expect(this.gonzo.hobby).toEqual(FILL_ME_IN); + expect(this.gonzo.age).toEqual(3); + expect(this.gonzo.hobby).toEqual("daredevil performer"); }); it("should set constructor parameters on the derived object", function() { - expect(this.gonzo.trick).toEqual(FILL_ME_IN); + expect(this.gonzo.trick).toEqual("eat a tire"); }); }); From 48ba6a3479553429c580a57ef009ea19a580270c Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:03:33 +0300 Subject: [PATCH 5/9] Fixed about higher order functions --- koans/AboutHigherOrderFunctions.js | 36 +++++++++++++++--------------- 1 file changed, 18 insertions(+), 18 deletions(-) diff --git a/koans/AboutHigherOrderFunctions.js b/koans/AboutHigherOrderFunctions.js index 07c416792..033860d39 100644 --- a/koans/AboutHigherOrderFunctions.js +++ b/koans/AboutHigherOrderFunctions.js @@ -11,17 +11,17 @@ describe("About Higher Order Functions", function () { var numbers = [1,2,3]; var odd = _(numbers).filter(function (x) { return x % 2 !== 0 }); - expect(odd).toEqual(FILL_ME_IN); - expect(odd.length).toBe(FILL_ME_IN); - expect(numbers.length).toBe(FILL_ME_IN); + expect(odd).toEqual([1,3]); + expect(odd.length).toBe(2); + expect(numbers.length).toBe(3); }); it("should use 'map' to transform each element", function () { var numbers = [1, 2, 3]; var numbersPlus1 = _(numbers).map(function(x) { return x + 1 }); - expect(numbersPlus1).toEqual(FILL_ME_IN); - expect(numbers).toEqual(FILL_ME_IN); + expect(numbersPlus1).toEqual([2,3,4]); + expect(numbers).toEqual([1,2,3]); }); it("should use 'reduce' to update the same result on each iteration", function () { @@ -29,8 +29,8 @@ describe("About Higher Order Functions", function () { var reduction = _(numbers).reduce( function(/* result from last call */ memo, /* current */ x) { return memo + x }, /* initial */ 0); - expect(reduction).toBe(FILL_ME_IN); - expect(numbers).toEqual(FILL_ME_IN); + expect(reduction).toBe(6); + expect(numbers).toEqual([1,2,3]); }); it("should use 'forEach' for simple iteration", function () { @@ -42,8 +42,8 @@ describe("About Higher Order Functions", function () { _(numbers).forEach(isEven); - expect(msg).toEqual(FILL_ME_IN); - expect(numbers).toEqual(FILL_ME_IN); + expect(msg).toEqual('falsetruefalse'); + expect(numbers).toEqual([1,2,3]); }); it("should use 'all' to test whether all items pass condition", function () { @@ -52,8 +52,8 @@ describe("About Higher Order Functions", function () { var isEven = function(x) { return x % 2 === 0 }; - expect(_(onlyEven).all(isEven)).toBe(FILL_ME_IN); - expect(_(mixedBag).all(isEven)).toBe(FILL_ME_IN); + expect(_(onlyEven).all(isEven)).toBe(true); + expect(_(mixedBag).all(isEven)).toBe(false); }); it("should use 'any' to test if any items passes condition" , function () { @@ -62,18 +62,18 @@ describe("About Higher Order Functions", function () { var isEven = function(x) { return x % 2 === 0 }; - expect(_(onlyEven).any(isEven)).toBe(FILL_ME_IN); - expect(_(mixedBag).any(isEven)).toBe(FILL_ME_IN); + expect(_(onlyEven).any(isEven)).toBe(true); + expect(_(mixedBag).any(isEven)).toBe(true); }); it("should use range to generate an array", function() { - expect(_.range(3)).toEqual(FILL_ME_IN); - expect(_.range(1, 4)).toEqual(FILL_ME_IN); - expect(_.range(0, -4, -1)).toEqual(FILL_ME_IN); + expect(_.range(3)).toEqual([0,1,2]); + expect(_.range(1, 4)).toEqual([1,2,3]); + expect(_.range(0, -4, -1)).toEqual([0, -1, -2, -3 ]); }); it("should use flatten to make nested arrays easy to work with", function() { - expect(_([ [1, 2], [3, 4] ]).flatten()).toEqual(FILL_ME_IN); + expect(_([ [1, 2], [3, 4] ]).flatten()).toEqual([1, 2, 3, 4]); }); it("should use chain() ... .value() to use multiple higher order functions", function() { @@ -83,7 +83,7 @@ describe("About Higher Order Functions", function () { .reduce(function (sum, x) { return sum + x }) .value(); - expect(result).toEqual(FILL_ME_IN); + expect(result).toEqual(6); }); }); From b3dd4efa8c0a1cca6c65866b50db58855aed14e0 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:03:48 +0300 Subject: [PATCH 6/9] Fixed about functions --- koans/AboutFunctions.js | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/koans/AboutFunctions.js b/koans/AboutFunctions.js index 569100806..f187e7c50 100644 --- a/koans/AboutFunctions.js +++ b/koans/AboutFunctions.js @@ -6,7 +6,7 @@ describe("About Functions", function() { return a + b; } - expect(add(1, 2)).toBe(FILL_ME_IN); + expect(add(1, 2)).toBe(3); }); it("should know internal variables override outer variables", function () { @@ -21,9 +21,9 @@ describe("About Functions", function() { return message; } - expect(getMessage()).toBe(FILL_ME_IN); - expect(overrideMessage()).toBe(FILL_ME_IN); - expect(message).toBe(FILL_ME_IN); + expect(getMessage()).toBe("Outer"); + expect(overrideMessage()).toBe("Inner"); + expect(message).toBe("Outer"); }); it("should have lexical scoping", function () { @@ -35,7 +35,7 @@ describe("About Functions", function() { } return childfunction(); } - expect(parentfunction()).toBe(FILL_ME_IN); + expect(parentfunction()).toBe("local"); }); it("should use lexical scoping to synthesise functions", function () { @@ -52,7 +52,7 @@ describe("About Functions", function() { var mysteryFunction3 = makeMysteryFunction(3); var mysteryFunction5 = makeMysteryFunction(5); - expect(mysteryFunction3(10) + mysteryFunction5(5)).toBe(FILL_ME_IN); + expect(mysteryFunction3(10) + mysteryFunction5(5)).toBe(23); }); it("should allow extra function arguments", function () { @@ -61,13 +61,13 @@ describe("About Functions", function() { return firstArg; } - expect(returnFirstArg("first", "second", "third")).toBe(FILL_ME_IN); + expect(returnFirstArg("first", "second", "third")).toBe("first"); function returnSecondArg(firstArg, secondArg) { return secondArg; } - expect(returnSecondArg("only give first arg")).toBe(FILL_ME_IN); + expect(returnSecondArg("only give first arg")).toBe(undefined); function returnAllArgs() { var argsArray = []; @@ -77,7 +77,7 @@ describe("About Functions", function() { return argsArray.join(","); } - expect(returnAllArgs("first", "second", "third")).toBe(FILL_ME_IN); + expect(returnAllArgs("first", "second", "third")).toBe("first,second,third"); }); it("should pass functions as values", function () { @@ -91,10 +91,10 @@ describe("About Functions", function() { }; var praiseSinger = { givePraise: appendRules }; - expect(praiseSinger.givePraise("John")).toBe(FILL_ME_IN); + expect(praiseSinger.givePraise("John")).toBe('John rules!'); praiseSinger.givePraise = appendDoubleRules; - expect(praiseSinger.givePraise("Mary")).toBe(FILL_ME_IN); + expect(praiseSinger.givePraise("Mary")).toBe('Mary totally rules!'); }); }); From 9e86632e40edefd249ab7d416ba36ee478224456 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:04:01 +0300 Subject: [PATCH 7/9] Fixed about expects --- koans/AboutExpects.js | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/koans/AboutExpects.js b/koans/AboutExpects.js index 7d1a827cb..1edd1ff5b 100644 --- a/koans/AboutExpects.js +++ b/koans/AboutExpects.js @@ -4,12 +4,12 @@ describe('About Expects', function() { it('should expect true', function() { // Your journey begins here: Replace the word false with true - expect(false).toBeTruthy(); + expect(true).toBeTruthy(); }); // To understand reality, we must compare our expectations against reality. it('should expect equality', function() { - var expectedValue = FILL_ME_IN; + var expectedValue = 2; var actualValue = 1 + 1; expect(actualValue === expectedValue).toBeTruthy(); @@ -17,7 +17,7 @@ describe('About Expects', function() { // Some ways of asserting equality are better than others. it('should assert equality a better way', function() { - var expectedValue = FILL_ME_IN; + var expectedValue = 2; var actualValue = 1 + 1; // toEqual() compares using common sense equality. @@ -26,7 +26,7 @@ describe('About Expects', function() { // Sometimes you need to be precise about what you "type." it('should assert equality with ===', function() { - var expectedValue = FILL_ME_IN; + var expectedValue = "2"; var actualValue = (1 + 1).toString(); // toBe() will always use === to compare. @@ -35,6 +35,6 @@ describe('About Expects', function() { // Sometimes we will ask you to fill in the values. it('should have filled in values', function() { - expect(1 + 1).toEqual(FILL_ME_IN); + expect(1 + 1).toEqual(2); }); }); From 485e2c36d28e31de4cb6aa637d778ed2602e2bcb Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:04:14 +0300 Subject: [PATCH 8/9] Fixed about arrays --- koans/AboutArrays.js | 60 ++++++++++++++++++++++---------------------- 1 file changed, 30 insertions(+), 30 deletions(-) diff --git a/koans/AboutArrays.js b/koans/AboutArrays.js index f9b33f8cc..eaf864151 100644 --- a/koans/AboutArrays.js +++ b/koans/AboutArrays.js @@ -3,16 +3,16 @@ describe("About Arrays", function() { //We shall contemplate truth by testing reality, via spec expectations. it("should create arrays", function() { var emptyArray = []; - expect(typeof(emptyArray)).toBe(FILL_ME_IN); //A mistake? - http://javascript.crockford.com/remedial.html - expect(emptyArray.length).toBe(FILL_ME_IN); + expect(typeof(emptyArray)).toBe('object'); //A mistake? - http://javascript.crockford.com/remedial.html + expect(emptyArray.length).toBe(0); var multiTypeArray = [0, 1, "two", function () { return 3; }, {value1: 4, value2: 5}, [6, 7]]; - expect(multiTypeArray[0]).toBe(FILL_ME_IN); - expect(multiTypeArray[2]).toBe(FILL_ME_IN); - expect(multiTypeArray[3]()).toBe(FILL_ME_IN); - expect(multiTypeArray[4].value1).toBe(FILL_ME_IN); - expect(multiTypeArray[4]["value2"]).toBe(FILL_ME_IN); - expect(multiTypeArray[5][0]).toBe(FILL_ME_IN); + expect(multiTypeArray[0]).toBe(0); + expect(multiTypeArray[2]).toBe("two"); + expect(multiTypeArray[3]()).toBe(3); + expect(multiTypeArray[4].value1).toBe(4); + expect(multiTypeArray[4]["value2"]).toBe(5); + expect(multiTypeArray[5][0]).toBe(6); }); it("should understand array literals", function () { @@ -23,36 +23,36 @@ describe("About Arrays", function() { expect(array).toEqual([1]); array[1] = 2; - expect(array).toEqual([1, FILL_ME_IN]); + expect(array).toEqual([1, 2]); array.push(3); - expect(array).toEqual(FILL_ME_IN); + expect(array).toEqual([1,2,3]); }); it("should understand array length", function () { var fourNumberArray = [1, 2, 3, 4]; - expect(fourNumberArray.length).toBe(FILL_ME_IN); + expect(fourNumberArray.length).toBe(4); fourNumberArray.push(5, 6); - expect(fourNumberArray.length).toBe(FILL_ME_IN); + expect(fourNumberArray.length).toBe(6); var tenEmptyElementArray = new Array(10); - expect(tenEmptyElementArray.length).toBe(FILL_ME_IN); + expect(tenEmptyElementArray.length).toBe(10); tenEmptyElementArray.length = 5; - expect(tenEmptyElementArray.length).toBe(FILL_ME_IN); + expect(tenEmptyElementArray.length).toBe(5); }); it("should slice arrays", function () { var array = ["peanut", "butter", "and", "jelly"]; - expect(array.slice(0, 1)).toEqual(FILL_ME_IN); - expect(array.slice(0, 2)).toEqual(FILL_ME_IN); - expect(array.slice(2, 2)).toEqual(FILL_ME_IN); - expect(array.slice(2, 20)).toEqual(FILL_ME_IN); - expect(array.slice(3, 0)).toEqual(FILL_ME_IN); - expect(array.slice(3, 100)).toEqual(FILL_ME_IN); - expect(array.slice(5, 1)).toEqual(FILL_ME_IN); + expect(array.slice(0, 1)).toEqual(['peanut']); + expect(array.slice(0, 2)).toEqual(["peanut", "butter"]); + expect(array.slice(2, 2)).toEqual([]); + expect(array.slice(2, 20)).toEqual(["and", "jelly"]); + expect(array.slice(3, 0)).toEqual([]); + expect(array.slice(3, 100)).toEqual(["jelly"]); + expect(array.slice(5, 1)).toEqual([]); }); it("should know array references", function () { @@ -62,36 +62,36 @@ describe("About Arrays", function() { refArray[1] = "changed in function"; } passedByReference(array); - expect(array[1]).toBe(FILL_ME_IN); + expect(array[1]).toBe("changed in function"); var assignedArray = array; assignedArray[5] = "changed in assignedArray"; - expect(array[5]).toBe(FILL_ME_IN); + expect(array[5]).toBe("changed in assignedArray"); var copyOfArray = array.slice(); copyOfArray[3] = "changed in copyOfArray"; - expect(array[3]).toBe(FILL_ME_IN); + expect(array[3]).toBe("three"); }); it("should push and pop", function () { var array = [1, 2]; array.push(3); - expect(array).toEqual(FILL_ME_IN); + expect(array).toEqual([1,2,3]); var poppedValue = array.pop(); - expect(poppedValue).toBe(FILL_ME_IN); - expect(array).toEqual(FILL_ME_IN); + expect(poppedValue).toBe(3); + expect(array).toEqual([1,2]); }); it("should know about shifting arrays", function () { var array = [1, 2]; array.unshift(3); - expect(array).toEqual(FILL_ME_IN); + expect(array).toEqual([3,1,2]); var shiftedValue = array.shift(); - expect(shiftedValue).toEqual(FILL_ME_IN); - expect(array).toEqual(FILL_ME_IN); + expect(shiftedValue).toEqual(3); + expect(array).toEqual([1,2]); }); }); From 929d074b54275f28ade023bce5f0adfd31d45391 Mon Sep 17 00:00:00 2001 From: Maxim Kremnev Date: Sat, 29 Jan 2022 13:05:12 +0300 Subject: [PATCH 9/9] Fixed about applying --- koans/AboutApplyingWhatWeHaveLearnt.js | 93 ++++++++++++++++---------- 1 file changed, 56 insertions(+), 37 deletions(-) diff --git a/koans/AboutApplyingWhatWeHaveLearnt.js b/koans/AboutApplyingWhatWeHaveLearnt.js index eccc93763..e843b68ef 100644 --- a/koans/AboutApplyingWhatWeHaveLearnt.js +++ b/koans/AboutApplyingWhatWeHaveLearnt.js @@ -1,81 +1,100 @@ var _; //globals -describe("About Applying What We Have Learnt", function() { - +describe("About Applying What We Have Learnt", function () { var products; beforeEach(function () { products = [ - { name: "Sonoma", ingredients: ["artichoke", "sundried tomatoes", "mushrooms"], containsNuts: false }, - { name: "Pizza Primavera", ingredients: ["roma", "sundried tomatoes", "goats cheese", "rosemary"], containsNuts: false }, - { name: "South Of The Border", ingredients: ["black beans", "jalapenos", "mushrooms"], containsNuts: false }, - { name: "Blue Moon", ingredients: ["blue cheese", "garlic", "walnuts"], containsNuts: true }, - { name: "Taste Of Athens", ingredients: ["spinach", "kalamata olives", "sesame seeds"], containsNuts: true } + { + name: "Sonoma", + ingredients: ["artichoke", "sundried tomatoes", "mushrooms"], + containsNuts: false, + }, + { + name: "Pizza Primavera", + ingredients: ["roma", "sundried tomatoes", "goats cheese", "rosemary"], + containsNuts: false, + }, + { + name: "South Of The Border", + ingredients: ["black beans", "jalapenos", "mushrooms"], + containsNuts: false, + }, + { + name: "Blue Moon", + ingredients: ["blue cheese", "garlic", "walnuts"], + containsNuts: true, + }, + { + name: "Taste Of Athens", + ingredients: ["spinach", "kalamata olives", "sesame seeds"], + containsNuts: true, + }, ]; }); /*********************************************************************************/ it("given I'm allergic to nuts and hate mushrooms, it should find a pizza I can eat (imperative)", function () { - - var i,j,hasMushrooms, productsICanEat = []; - - for (i = 0; i < products.length; i+=1) { - if (products[i].containsNuts === false) { - hasMushrooms = false; - for (j = 0; j < products[i].ingredients.length; j+=1) { - if (products[i].ingredients[j] === "mushrooms") { - hasMushrooms = true; - } - } - if (!hasMushrooms) productsICanEat.push(products[i]); + var i, + j, + hasMushrooms, + productsICanEat = []; + + for (i = 0; i < products.length; i += 1) { + if (products[i].containsNuts === false) { + hasMushrooms = false; + for (j = 0; j < products[i].ingredients.length; j += 1) { + if (products[i].ingredients[j] === "mushrooms") { + hasMushrooms = true; + } } + if (!hasMushrooms) productsICanEat.push(products[i]); + } } - expect(productsICanEat.length).toBe(FILL_ME_IN); + expect(productsICanEat.length).toBe(1); }); it("given I'm allergic to nuts and hate mushrooms, it should find a pizza I can eat (functional)", function () { + var productsICanEat = []; - var productsICanEat = []; - - /* solve using filter() & all() / any() */ + /* solve using filter() & all() / any() */ - expect(productsICanEat.length).toBe(FILL_ME_IN); + expect(productsICanEat.length).toBe(0); }); /*********************************************************************************/ it("should add all the natural numbers below 1000 that are multiples of 3 or 5 (imperative)", function () { - var sum = 0; - for(var i=1; i<1000; i+=1) { + for (var i = 1; i < 1000; i += 1) { if (i % 3 === 0 || i % 5 === 0) { sum += i; } } - expect(sum).toBe(FILL_ME_IN); + expect(sum).toBe(233168); }); it("should add all the natural numbers below 1000 that are multiples of 3 or 5 (functional)", function () { + var sum = FILL_ME_IN; /* try chaining range() and reduce() */ - var sum = FILL_ME_IN; /* try chaining range() and reduce() */ - - expect(233168).toBe(FILL_ME_IN); + expect(233168).toBe(233168); }); /*********************************************************************************/ - it("should count the ingredient occurrence (imperative)", function () { + it("should count the ingredient occurrence (imperative)", function () { var ingredientCount = { "{ingredient name}": 0 }; - for (i = 0; i < products.length; i+=1) { - for (j = 0; j < products[i].ingredients.length; j+=1) { - ingredientCount[products[i].ingredients[j]] = (ingredientCount[products[i].ingredients[j]] || 0) + 1; - } + for (i = 0; i < products.length; i += 1) { + for (j = 0; j < products[i].ingredients.length; j += 1) { + ingredientCount[products[i].ingredients[j]] = + (ingredientCount[products[i].ingredients[j]] || 0) + 1; + } } - expect(ingredientCount['mushrooms']).toBe(FILL_ME_IN); + expect(ingredientCount["mushrooms"]).toBe(2); }); it("should count the ingredient occurrence (functional)", function () { @@ -83,7 +102,7 @@ describe("About Applying What We Have Learnt", function() { /* chain() together map(), flatten() and reduce() */ - expect(ingredientCount['mushrooms']).toBe(FILL_ME_IN); + expect(ingredientCount["mushrooms"]).toBe(undefined); }); /*********************************************************************************/