diff --git a/Sprint-1/fix/median.js b/Sprint-1/fix/median.js index b22590bc6..bed111348 100644 --- a/Sprint-1/fix/median.js +++ b/Sprint-1/fix/median.js @@ -6,9 +6,37 @@ // or 'list' has mixed values (the function is expected to sort only numbers). function calculateMedian(list) { - const middleIndex = Math.floor(list.length / 2); - const median = list.splice(middleIndex, 1)[0]; - return median; + // validate that the datetype is arrays + if (!Array.isArray(list)) { + return null; + } + // Convert numeric strings to numbers and ignore non-numeric values + const numericValue = list + .map(item=>{ + // convert numerical string to number + if(typeof item ==="string" && item.trim()!==""&& !isNaN(item)){ + return Number(item); + } + return item; + } ) + // Filter every arrays that is now a number + .filter(item =>typeof item==="number"&& !isNaN(item)); + // Validates if the Arrays has any numerical values at all + if (numericValue.length===0){ + return null; + } + // sorting the numeric data in ascending order + numericValue.sort((a,b)=>a-b); + const median = Math.floor(numericValue.length / 2); + + //Add statement to handle when array length is an odd number + if (numericValue.length % 2 !==0){ + return numericValue[median]; + } + // add a logic to handle when the data length is even number + if (numericValue.length % 2 === 0){ + return (numericValue[median-1] + numericValue[median])/2 + } } module.exports = calculateMedian; diff --git a/Sprint-1/implement/dedupe.js b/Sprint-1/implement/dedupe.js index 781e8718a..88e1da751 100644 --- a/Sprint-1/implement/dedupe.js +++ b/Sprint-1/implement/dedupe.js @@ -1 +1,8 @@ -function dedupe() {} +function dedupe() { + const unique = [...new Set(n)]; + return unique; +} + + + +module.exports = dedupe; \ No newline at end of file diff --git a/Sprint-1/implement/dedupe.test.js b/Sprint-1/implement/dedupe.test.js index d7c8e3d8e..d5a68ed2d 100644 --- a/Sprint-1/implement/dedupe.test.js +++ b/Sprint-1/implement/dedupe.test.js @@ -16,13 +16,43 @@ E.g. dedupe([1, 2, 1]) returns [1, 2] // Given an empty array // When passed to the dedupe function // Then it should return an empty array -test.todo("given an empty array, it returns an empty array"); +//test.todo("given an empty array, it returns an empty array"); +const dedupe = require("./dedupe.js"); + +describe("dedupe given an empty array, it returns an empty array ", () => { + [{ input: [], expected: [] }].forEach(({ input, expected }) => + it(`returns the empty array for [${input}]`, () => + expect(dedupe(input)).toEqual(expected)) + ); +}); // Given an array with no duplicates // When passed to the dedupe function // Then it should return a copy of the original array +describe("dedupe given an array with no duplicate, it returns a copy of original array ", () => { + [{ input: [1, 2, 3], expected: [1, 2, 3] }].forEach(({ input, expected }) => + it(`returns the original copy of the array for [${input}]`, () => + expect(dedupe(input)).toEqual(expected)) + ); +}); + + + // Given an array of strings or numbers // When passed to the dedupe function // Then it should return a new array with duplicates removed while preserving the // first occurrence of each element from the original array. + +describe("dedupe given an array of strings or Numbers , it returns a copy with duplicates in original array removed ", () => { + [ + { + input: ["s", "t", "r", "i", "n", "g", "s"], + expected: ["s", "t", "r", "i", "n", "g"], + }, + { input: [1, 1, 2, 3, 3, 4], expected: [1,2,3,4] }, + ].forEach(({ input, expected }) => + it(`returns the original copy of the array for [${input}]`, () => + expect(dedupe(input)).toEqual(expected)) + ); +}); \ No newline at end of file diff --git a/Sprint-1/implement/max.js b/Sprint-1/implement/max.js index 6dd76378e..dd19f0ebd 100644 --- a/Sprint-1/implement/max.js +++ b/Sprint-1/implement/max.js @@ -1,4 +1,12 @@ function findMax(elements) { + // filter out the numeric numbers +const numbers = elements.filter( + (item) => typeof item === "number" && !Number.isNaN(item) +); + +const maxiNum = Math.max(...numbers); +return maxiNum; + } module.exports = findMax; diff --git a/Sprint-1/implement/max.test.js b/Sprint-1/implement/max.test.js index 82f18fd88..185523f13 100644 --- a/Sprint-1/implement/max.test.js +++ b/Sprint-1/implement/max.test.js @@ -16,28 +16,49 @@ const findMax = require("./max.js"); // When passed to the max function // Then it should return -Infinity // Delete this test.todo and replace it with a test. -test.todo("given an empty array, returns -Infinity"); +test("case 1: Given an empty array when passed to a function should return -Infinity ", () => { + expect(findMax([])).toBe(-Infinity ); +}); // Given an array with one number // When passed to the max function // Then it should return that number +test("case 2: Given an array with one number when passed to a function should return that number ", () => { + expect(findMax([6])).toBe(6); +}); // Given an array with both positive and negative numbers // When passed to the max function // Then it should return the largest number overall +test("case 3: Given an array with both positive and negative numbers when passed to a function should return the largest number overall ", () => { + expect(findMax([-1,-2,-6,6,8,10])).toBe(10); +}); // Given an array with just negative numbers // When passed to the max function // Then it should return the closest one to zero +test("case 4: Given an array with just negative numbers when passed to a function should return the closest number to zero", () => { + expect(findMax([-1, -2, -6, -10, -8, -12])).toBe(-1); +}); // Given an array with decimal numbers // When passed to the max function // Then it should return the largest decimal number +test("case 5: Given an array with decimal numbers when passed to a function should return largest decimal number", () => { + expect(findMax([1.1, 0.2, 0.3, 0.4, 0.5, 0.6,2.75])).toBe(2.75); +}); // Given an array with non-number values // When passed to the max function // Then it should return the max and ignore non-numeric values +test("case 6: Given an array with numeric and non-numeric values it returns the max and ignores non-numeric values", () => { + expect(findMax([1.1, 3, 4, "Toby", "undefine", "", 2.75])).toBe(4); +}); + // Given an array with only non-number values // When passed to the max function // Then it should return the least surprising value given how it behaves for all other inputs +test("Given an array with only non-number values, it returns -Infinity", () => { + expect(findMax(["Toby", "Sam", null, undefined, ""])).toBe(-Infinity); +}); \ No newline at end of file diff --git a/Sprint-1/implement/sum.js b/Sprint-1/implement/sum.js index 9062aafe3..578f93304 100644 --- a/Sprint-1/implement/sum.js +++ b/Sprint-1/implement/sum.js @@ -1,4 +1,8 @@ function sum(elements) { + const onlyNumbers = elements.filter(elem=>typeof elem==="number"&&!Number.isNaN(elem)); + const addNum = onlyNumbers.reduce((item,n)=>item +n,0); + return Number(addNum.toFixed(10)); } + module.exports = sum; diff --git a/Sprint-1/implement/sum.test.js b/Sprint-1/implement/sum.test.js index dd0a090ca..d381d662f 100644 --- a/Sprint-1/implement/sum.test.js +++ b/Sprint-1/implement/sum.test.js @@ -13,24 +13,51 @@ const sum = require("./sum.js"); // Given an empty array // When passed to the sum function // Then it should return 0 -test.todo("given an empty array, returns 0") +test("given an empty array,when passed to the sun function it returns 0",()=> + {expect(sum([])).toBe(0); + +}); // Given an array with just one number // When passed to the sum function // Then it should return that number +test("Test case 2: given an array with just one number ,when passed to the sun function it returns that number", () => { + expect(sum([5])).toBe(5); +}); // Given an array containing negative numbers // When passed to the sum function // Then it should still return the correct total sum +test("Test case 3: given an array containing negative number ,when passed to the sun function it returns the correct total sum ", () => { + expect(sum([-5,-3,-8])).toBe(-16); +}); // Given an array with decimal/float numbers // When passed to the sum function // Then it should return the correct total sum +describe("Test case 4: given an array containing decimal/float numbers ,when passed to the sun function it returns the correct total sum ", () => { + [ + { input: [1.1, 2.2, 3.3], expected: 6.6 }, + { input: [-1.1, -2.2, -3.3], expected: -6.6 }, + ].forEach(({ input, expected }) => it(`returns the correct total sum for [${input}]`,()=>{ + expect(sum(input)).toBeCloseTo(expected); + + })); + +}); + // Given an array containing non-number values // When passed to the sum function // Then it should ignore the non-numerical values and return the sum of the numerical elements +test("Test case 5: given an array containing both numeric and non-numeric values ,when passed to the sun function it returns the sum of the numeric elements and ignore the non-numerical value ", () => { + expect(sum(["Toby", 6, "undefine","NaN",10, 11])).toBe(27); +}); + // Given an array with only non-number values // When passed to the sum function // Then it should return the least surprising value given how it behaves for all other inputs +test("given an array with only non-number values,when passed to the sun function it returns 0 which is the least surprising value given how it behaves for all other inputs", () => { + expect(sum(["Toby", "undefine", "NaN"])).toBe(0); +}); \ No newline at end of file diff --git a/Sprint-1/package-lock.json b/Sprint-1/package-lock.json index 83e427d0b..22bb04965 100644 --- a/Sprint-1/package-lock.json +++ b/Sprint-1/package-lock.json @@ -12,38 +12,25 @@ "jest": "^29.7.0" } }, - "node_modules/@ampproject/remapping": { - "version": "2.3.0", - "resolved": "https://registry.npmjs.org/@ampproject/remapping/-/remapping-2.3.0.tgz", - "integrity": 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- "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==", + "version": "2.3.2", + "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.2.tgz", + "integrity": "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==", "dev": true, "license": "MIT", "engines": { @@ -3543,16 +3435,6 @@ "dev": true, "license": "BSD-3-Clause" }, - "node_modules/to-fast-properties": { - "version": "2.0.0", - "resolved": "https://registry.npmjs.org/to-fast-properties/-/to-fast-properties-2.0.0.tgz", - "integrity": "sha512-/OaKK0xYrs3DmxRYqL/yDc+FxFUVYhDlXMhRmv3z915w2HF1tnN1omB354j8VUGO/hbRzyD6Y3sA7v7GS/ceog==", - "dev": true, - "license": "MIT", - "engines": { - "node": ">=4" - } - }, "node_modules/to-regex-range": { "version": "5.0.1", "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz", @@ -3597,9 +3479,9 @@ "license": "MIT" }, "node_modules/update-browserslist-db": { - "version": "1.1.1", - "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.1.1.tgz", - "integrity": "sha512-R8UzCaa9Az+38REPiJ1tXlImTJXlVfgHZsglwBD/k6nj76ctsH1E3q4doGrukiLQd3sGQYu56r5+lo5r94l29A==", + "version": "1.2.3", + "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz", + "integrity": "sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w==", "dev": true, "funding": [ { @@ -3618,7 +3500,7 @@ "license": "MIT", "dependencies": { "escalade": "^3.2.0", - "picocolors": "^1.1.0" + "picocolors": "^1.1.1" }, "bin": { "update-browserslist-db": "cli.js" diff --git a/Sprint-1/refactor/includes.js b/Sprint-1/refactor/includes.js index 29dad81f0..963ca00fd 100644 --- a/Sprint-1/refactor/includes.js +++ b/Sprint-1/refactor/includes.js @@ -1,12 +1,12 @@ // Refactor the implementation of includes to use a for...of loop -function includes(list, target) { - for (let index = 0; index < list.length; index++) { - const element = list[index]; - if (element === target) { +function includes(array, target) { + for (let i = 0; i < array.length; i++) { + if (array[i] === target) { return true; } } + return false; }