From 038bb6a8f5de5d9baf1e1c728d28f8b33d997fb5 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:11:09 +0100 Subject: [PATCH 01/12] updating count.js file --- practice-tdd/count.js | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/practice-tdd/count.js b/practice-tdd/count.js index 5518c5712..ae98c6a43 100644 --- a/practice-tdd/count.js +++ b/practice-tdd/count.js @@ -1,3 +1,9 @@ export function countChar(stringOfCharacters, findCharacter) { - return 5 + let count = 0; + for (const character of stringOfCharacters) { + if (character === findCharacter) { + count++; + } + } + return count; } From 7f77ed182645b7f5fddf7dc7c7fd6727871cdcd2 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:14:22 +0100 Subject: [PATCH 02/12] solve excersise count.test.js --- practice-tdd/count.test.js | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/practice-tdd/count.test.js b/practice-tdd/count.test.js index cb3aaae59..7c99146d1 100644 --- a/practice-tdd/count.test.js +++ b/practice-tdd/count.test.js @@ -1,5 +1,7 @@ // implement a function countChar that counts the number of times a character occurs in a string import { countChar } from "./count.js"; +import { test, expect } from "@jest/globals"; + // Given a string `str` and a single character `char` to search for, // When the countChar function is called with these inputs, // Then it should: @@ -22,3 +24,10 @@ test("should count multiple occurrences of a character", () => { // And a character `char` that does not exist within `str`. // When the function is called with these inputs, // Then it should return 0, indicating that no occurrences of `char` were found. + +test("should indicate no occurrences of a character", () => { + const str = "abcde"; + const char = "f"; + const numberOfOcurrence = countChar(str, char); + expect(numberOfOcurrence).toEqual(0); +}); From eafa02b71a93f51e0c9ccb218232a53330c53e95 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:15:42 +0100 Subject: [PATCH 03/12] solve excersise get-ordinal-number.js --- practice-tdd/get-ordinal-number.js | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/practice-tdd/get-ordinal-number.js b/practice-tdd/get-ordinal-number.js index 5c6291f5e..de67a06fe 100644 --- a/practice-tdd/get-ordinal-number.js +++ b/practice-tdd/get-ordinal-number.js @@ -1,3 +1,12 @@ export function getOrdinalNumber(num) { - return "1st"; + if (String(num).match(/\b(?!11\b)\d*1\b/)) { + return `${num}st`; + } + if (String(num).match(/\b(?!12\b)\d*2\b/)) { + return `${num}nd`; + } + if (String(num).match(/\b(?!13\b)\d*3\b/)) { + return `${num}rd`; + } + return `${num}th`; } From d48367cc26d2a17a8f73c875fc6719ff55fabf77 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:17:00 +0100 Subject: [PATCH 04/12] solve excersise get-ordinal-number.test.js --- practice-tdd/get-ordinal-number.test.js | 30 +++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/practice-tdd/get-ordinal-number.test.js b/practice-tdd/get-ordinal-number.test.js index e23174a18..aa959265c 100644 --- a/practice-tdd/get-ordinal-number.test.js +++ b/practice-tdd/get-ordinal-number.test.js @@ -18,3 +18,33 @@ test("should append 'st' for numbers ending with 1, except those ending with 11" expect(getOrdinalNumber(21)).toEqual("21st"); expect(getOrdinalNumber(131)).toEqual("131st"); }); + +// Case 2: Numbers ending with 2 (but not 12) +// When the number ends with 2, except those ending with 12, +// Then the function should return a string by appending "nd" to the number. +test("should append 'nd' for numbers ending with 2, except those ending with 12", () => { + expect(getOrdinalNumber(2)).toEqual("2nd"); + expect(getOrdinalNumber(32)).toEqual("32nd"); + expect(getOrdinalNumber(452)).toEqual("452nd"); +}); + +// Case 3: Numbers ending with 3 (but not 13) +// When the number ends with 3, except those ending with 13, +// Then the function should return a string by appending "rd" to the number. +test("should append 'rd' for numbers ending with 3, except those ending with 13", () => { + expect(getOrdinalNumber(3)).toEqual("3rd"); + expect(getOrdinalNumber(43)).toEqual("43rd"); + expect(getOrdinalNumber(823)).toEqual("823rd"); +}); + +// Case 4: Numbers ending with any other number (but not 1,2 or 3) +// When the number ends with 4,5,6 ,7 ,8 or 9 , +// Then the function should return a string by appending "th" to the number. +test("should append 'th' for numbers ending with 4,5,6 ,7 ,8 or 9 ", () => { + expect(getOrdinalNumber(4)).toEqual("4th"); + expect(getOrdinalNumber(25)).toEqual("25th"); + expect(getOrdinalNumber(656)).toEqual("656th"); + expect(getOrdinalNumber(1007)).toEqual("1007th"); + expect(getOrdinalNumber(638398)).toEqual("638398th"); + expect(getOrdinalNumber(34454559)).toEqual("34454559th"); +}); From 81f14c51e622d87fe2bdcd6cb26bffdfb7958bc3 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:18:32 +0100 Subject: [PATCH 05/12] solve excersise repeat-str.js --- practice-tdd/repeat-str.js | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/practice-tdd/repeat-str.js b/practice-tdd/repeat-str.js index af273f3b0..fad1597ae 100644 --- a/practice-tdd/repeat-str.js +++ b/practice-tdd/repeat-str.js @@ -1,5 +1,14 @@ -export function repeatStr() { +export function repeatStr(str, count) { // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat). // The goal is to re-implement that function, not to use it. - return "hellohellohello"; + if (count < 0) { + return "Error! negative counts are not valid"; + } + let result = ""; + let counter = count; + while (counter > 0) { + result += str; + counter--; + } + return result; } From e69b86de0ddc1b0afce5e739a6338872d0fdfb0c Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:19:47 +0100 Subject: [PATCH 06/12] solve excersise repeat-str.test.js --- practice-tdd/repeat-str.test.js | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js index 8a7036102..2f2849829 100644 --- a/practice-tdd/repeat-str.test.js +++ b/practice-tdd/repeat-str.test.js @@ -21,12 +21,33 @@ test("should repeat the string count times", () => { // When the repeatStr function is called with these inputs, // Then it should return the original `str` without repetition. +test("should return the original `str` without repetition", () => { + const str = "hello"; + const count = 1; + const repeatedStr = repeatStr(str, count); + expect(repeatedStr).toEqual("hello"); +}); + // Case: Handle count of 0: // Given a target string `str` and a `count` equal to 0, // When the repeatStr function is called with these inputs, // Then it should return an empty string. +test("should return an empty string", () => { + const str = "hello"; + const count = 0; + const repeatedStr = repeatStr(str, count); + expect(repeatedStr).toEqual(""); +}); + // Case: Handle negative count: // Given a target string `str` and a negative integer `count`, // When the repeatStr function is called with these inputs, // Then it should throw an error, as negative counts are not valid. + +test("should throw an error, as negative counts are not valid.", () => { + const str = "hello"; + const count = -3; + const repeatedStr = repeatStr(str, count); + expect(repeatedStr).toEqual("Error! negative counts are not valid"); +}); From fa692ca18ec84d72e2eb4234ac81f01d3ddfeb46 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Tue, 13 Oct 2026 23:23:09 +0100 Subject: [PATCH 07/12] addinkg .gitignore --- practice-tdd/.gitignore | 3 +++ 1 file changed, 3 insertions(+) create mode 100644 practice-tdd/.gitignore diff --git a/practice-tdd/.gitignore b/practice-tdd/.gitignore new file mode 100644 index 000000000..ad5e45ccc --- /dev/null +++ b/practice-tdd/.gitignore @@ -0,0 +1,3 @@ +node_modules +package.json +package-lock.json \ No newline at end of file From 119d10a1b5ce1da57e95766b27a3f583995aba61 Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Wed, 14 Oct 2026 21:31:09 +0100 Subject: [PATCH 08/12] remove pakage.json and lock files from gitignore --- practice-tdd/.gitignore | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/practice-tdd/.gitignore b/practice-tdd/.gitignore index ad5e45ccc..a56a7ef43 100644 --- a/practice-tdd/.gitignore +++ b/practice-tdd/.gitignore @@ -1,3 +1,2 @@ node_modules -package.json -package-lock.json \ No newline at end of file + From c6ff9441508e8611c1be4f2617aca33dbd90cb4c Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Wed, 14 Oct 2026 21:53:07 +0100 Subject: [PATCH 09/12] adding toThrow method --- practice-tdd/repeat-str.js | 2 +- practice-tdd/repeat-str.test.js | 5 +++-- 2 files changed, 4 insertions(+), 3 deletions(-) diff --git a/practice-tdd/repeat-str.js b/practice-tdd/repeat-str.js index fad1597ae..b5753a858 100644 --- a/practice-tdd/repeat-str.js +++ b/practice-tdd/repeat-str.js @@ -2,7 +2,7 @@ export function repeatStr(str, count) { // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat). // The goal is to re-implement that function, not to use it. if (count < 0) { - return "Error! negative counts are not valid"; + throw new Error("Error! negative counts are not valid"); } let result = ""; let counter = count; diff --git a/practice-tdd/repeat-str.test.js b/practice-tdd/repeat-str.test.js index 2f2849829..741f4db70 100644 --- a/practice-tdd/repeat-str.test.js +++ b/practice-tdd/repeat-str.test.js @@ -48,6 +48,7 @@ test("should return an empty string", () => { test("should throw an error, as negative counts are not valid.", () => { const str = "hello"; const count = -3; - const repeatedStr = repeatStr(str, count); - expect(repeatedStr).toEqual("Error! negative counts are not valid"); + expect(() => repeatStr(str, count)).toThrow( + "Error! negative counts are not valid" + ); }); From d5f0650068368f6a673b83a2913e3cddac1a757c Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Wed, 14 Oct 2026 22:51:56 +0100 Subject: [PATCH 10/12] update get-ordinal exercise --- practice-tdd/get-ordinal-number.js | 23 +++++++++++++++-------- practice-tdd/get-ordinal-number.test.js | 10 ++++++++++ 2 files changed, 25 insertions(+), 8 deletions(-) diff --git a/practice-tdd/get-ordinal-number.js b/practice-tdd/get-ordinal-number.js index de67a06fe..60d5e0e54 100644 --- a/practice-tdd/get-ordinal-number.js +++ b/practice-tdd/get-ordinal-number.js @@ -1,12 +1,19 @@ export function getOrdinalNumber(num) { - if (String(num).match(/\b(?!11\b)\d*1\b/)) { - return `${num}st`; + const lastTwoDigits = num % 100; + + // Handle exceptions: 11th, 12th, 13th, 111th, etc. + if (lastTwoDigits >= 11 && lastTwoDigits <= 13) { + return `${num}th`; } - if (String(num).match(/\b(?!12\b)\d*2\b/)) { - return `${num}nd`; + + switch (num % 10) { + case 1: + return `${num}st`; + case 2: + return `${num}nd`; + case 3: + return `${num}rd`; + default: + return `${num}th`; } - if (String(num).match(/\b(?!13\b)\d*3\b/)) { - return `${num}rd`; - } - return `${num}th`; } diff --git a/practice-tdd/get-ordinal-number.test.js b/practice-tdd/get-ordinal-number.test.js index aa959265c..ec414bee3 100644 --- a/practice-tdd/get-ordinal-number.test.js +++ b/practice-tdd/get-ordinal-number.test.js @@ -48,3 +48,13 @@ test("should append 'th' for numbers ending with 4,5,6 ,7 ,8 or 9 ", () => { expect(getOrdinalNumber(638398)).toEqual("638398th"); expect(getOrdinalNumber(34454559)).toEqual("34454559th"); }); + +// Case 5: Numbers ending with 3digit teen expcetions +// When the number ends with ,(111, 112,113) +// Then the function should return a string by appending "th" to the number. +test("should append 'th' for numbers ending with ", () => { + expect(getOrdinalNumber(111)).toEqual("111th"); + expect(getOrdinalNumber(112)).toEqual("112th"); + expect(getOrdinalNumber(113)).toEqual("113th"); + +}); From fec0df197eeb10e30bca8cc1f46471da2eca86bd Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Wed, 14 Oct 2026 22:53:34 +0100 Subject: [PATCH 11/12] remove unnessarry import from count.test.js --- practice-tdd/count.test.js | 1 - 1 file changed, 1 deletion(-) diff --git a/practice-tdd/count.test.js b/practice-tdd/count.test.js index 7c99146d1..97e9bd820 100644 --- a/practice-tdd/count.test.js +++ b/practice-tdd/count.test.js @@ -1,6 +1,5 @@ // implement a function countChar that counts the number of times a character occurs in a string import { countChar } from "./count.js"; -import { test, expect } from "@jest/globals"; // Given a string `str` and a single character `char` to search for, // When the countChar function is called with these inputs, From cfd965b0258793ced97ecd0b2198fd1c5ea431fd Mon Sep 17 00:00:00 2001 From: Abdennour Hachemi Date: Wed, 14 Oct 2026 22:56:19 +0100 Subject: [PATCH 12/12] correcting spelling typo --- practice-tdd/count.test.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/practice-tdd/count.test.js b/practice-tdd/count.test.js index 97e9bd820..d06f72bf1 100644 --- a/practice-tdd/count.test.js +++ b/practice-tdd/count.test.js @@ -27,6 +27,6 @@ test("should count multiple occurrences of a character", () => { test("should indicate no occurrences of a character", () => { const str = "abcde"; const char = "f"; - const numberOfOcurrence = countChar(str, char); - expect(numberOfOcurrence).toEqual(0); + const numberOfOccurrence = countChar(str, char); + expect(numberOfOccurrence).toEqual(0); });