Completed 1-4

This commit is contained in:
Thuan Bui
2025-02-22 10:23:40 +09:00
parent d4421b055f
commit c415382137
7 changed files with 68 additions and 23 deletions
+1 -1
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@@ -1,5 +1,5 @@
const helloWorld = function() { const helloWorld = function() {
return '' return 'Hello, World!'
}; };
module.exports = helloWorld; module.exports = helloWorld;
+9 -2
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@@ -1,5 +1,12 @@
const repeatString = function() { const repeatString = function(string,number) {
let fullString = "";
if (number < 0) {
return "ERROR";
}
for (i = 0; i < number; i++) {
fullString += string;
}
return fullString;
}; };
// Do not edit below this line // Do not edit below this line
+7 -7
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@@ -4,26 +4,26 @@ describe('repeatString', () => {
test('repeats the string', () => { test('repeats the string', () => {
expect(repeatString('hey', 3)).toEqual('heyheyhey'); expect(repeatString('hey', 3)).toEqual('heyheyhey');
}); });
test.skip('repeats the string many times', () => { test('repeats the string many times', () => {
expect(repeatString('hello', 10)).toEqual('hellohellohellohellohellohellohellohellohellohello'); expect(repeatString('hello', 10)).toEqual('hellohellohellohellohellohellohellohellohellohello');
}); });
test.skip('repeats the string 1 times', () => { test('repeats the string 1 times', () => {
expect(repeatString('hi', 1)).toEqual('hi'); expect(repeatString('hi', 1)).toEqual('hi');
}); });
test.skip('repeats the string 0 times', () => { test('repeats the string 0 times', () => {
expect(repeatString('bye', 0)).toEqual(''); expect(repeatString('bye', 0)).toEqual('');
}); });
test.skip('does not use the built-in String repeat method', () => { test('does not use the built-in String repeat method', () => {
/* Even though there is a built-in String repeat method, /* Even though there is a built-in String repeat method,
in this exercise specifically, we want you to practise using loops */ in this exercise specifically, we want you to practise using loops */
jest.spyOn(String.prototype, 'repeat').mockName('Built-in String repeat method'); jest.spyOn(String.prototype, 'repeat').mockName('Built-in String repeat method');
repeatString("don't use the built-in repeat method!", 1); repeatString("don't use the built-in repeat method!", 1);
expect(String.prototype.repeat).not.toHaveBeenCalled(); expect(String.prototype.repeat).not.toHaveBeenCalled();
}); });
test.skip('returns ERROR with negative numbers', () => { test('returns ERROR with negative numbers', () => {
expect(repeatString('goodbye', -1)).toEqual('ERROR'); expect(repeatString('goodbye', -1)).toEqual('ERROR');
}); });
test.skip('repeats the string a random amount of times', function () { test('repeats the string a random amount of times', function () {
/* The number is generated by using Math.random to get a value from between /* The number is generated by using Math.random to get a value from between
0 to 1, when this is multiplied by 1000 and rounded down with Math.floor it 0 to 1, when this is multiplied by 1000 and rounded down with Math.floor it
equals a number between 0 to 999 (this number will change everytime you run equals a number between 0 to 999 (this number will change everytime you run
@@ -36,7 +36,7 @@ describe('repeatString', () => {
const number = Math.floor(Math.random() * 1000); const number = Math.floor(Math.random() * 1000);
expect(repeatString('hey', number)).toBe('hey'.repeat(number)); expect(repeatString('hey', number)).toBe('hey'.repeat(number));
}); });
test.skip('works with blank strings', () => { test('works with blank strings', () => {
expect(repeatString('', 10)).toEqual(''); expect(repeatString('', 10)).toEqual('');
}); });
}); });
+6 -2
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@@ -1,5 +1,9 @@
const reverseString = function() { const reverseString = function(string) {
let newString =""
for (i = string.length; i >=0 ; i--) {
newString += string.charAt(i);
}
return newString;
}; };
// Do not edit below this line // Do not edit below this line
+3 -3
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@@ -5,16 +5,16 @@ describe('reverseString', () => {
expect(reverseString('hello')).toEqual('olleh'); expect(reverseString('hello')).toEqual('olleh');
}); });
test.skip('reverses multiple words', () => { test('reverses multiple words', () => {
expect(reverseString('hello there')).toEqual('ereht olleh'); expect(reverseString('hello there')).toEqual('ereht olleh');
}); });
test.skip('works with numbers and punctuation', () => { test('works with numbers and punctuation', () => {
expect(reverseString('123! abc! Hello, Odinite.')).toEqual( expect(reverseString('123! abc! Hello, Odinite.')).toEqual(
'.etinidO ,olleH !cba !321' '.etinidO ,olleH !cba !321'
); );
}); });
test.skip('works with blank strings', () => { test('works with blank strings', () => {
expect(reverseString('')).toEqual(''); expect(reverseString('')).toEqual('');
}); });
}); });
+35 -1
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@@ -1,4 +1,38 @@
const removeFromArray = function() { const removeFromArray = function(originalArray,...theArgs) {
let newArray = [];
console.log("Original Array: " + originalArray)
console.log("Argument Length: " + theArgs.length)
/*for (const number of originalArray) {
console.log("Current number: " + number)
for (let i=0; i < arguments.length; i++) {
console.log("Current argument value: " + theArgs[i]);
if (number === theArgs[i]) {
const index = originalArray.indexOf(number);
if (index > -1) { // only splice array when item is found
originalArray.splice(index, 1); // 2nd parameter means remove one item only
}
console.log(newArray)
}
}
}*/
for (let i=0; i < theArgs.length; i++) {
for (z=0; z < originalArray.length; z++ ) {
//for (const number of originalArray) {
number = originalArray[z];
console.log("Current number: " + number);
if (number === theArgs[i]) {
const index = originalArray.indexOf(number);
if (index > -1) { // only splice array when item is found
originalArray.splice(index, 1); // 2nd parameter means remove one item only
z--;
}
}
console.log(originalArray)
}
}
return originalArray;
}; };
// Do not edit below this line // Do not edit below this line
+7 -7
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@@ -4,25 +4,25 @@ describe('removeFromArray', () => {
test('removes a single value', () => { test('removes a single value', () => {
expect(removeFromArray([1, 2, 3, 4], 3)).toEqual([1, 2, 4]); expect(removeFromArray([1, 2, 3, 4], 3)).toEqual([1, 2, 4]);
}); });
test.skip('removes multiple values', () => { test('removes multiple values', () => {
expect(removeFromArray([1, 2, 3, 4], 3, 2)).toEqual([1, 4]); expect(removeFromArray([1, 2, 3, 4], 3, 2)).toEqual([1, 4]);
}); });
test.skip('removes multiple of the same value', () => { test('removes multiple of the same value', () => {
expect(removeFromArray([1, 2, 2, 3], 2)).toEqual([1, 3]); expect(removeFromArray([1, 2, 2, 3], 2)).toEqual([1, 3]);
}); });
test.skip('ignores non present values', () => { test('ignores non present values', () => {
expect(removeFromArray([1, 2, 3, 4], 7, "tacos")).toEqual([1, 2, 3, 4]); expect(removeFromArray([1, 2, 3, 4], 7, "tacos")).toEqual([1, 2, 3, 4]);
}); });
test.skip('ignores non present values, but still works', () => { test('ignores non present values, but still works', () => {
expect(removeFromArray([1, 2, 3, 4], 7, 2)).toEqual([1, 3, 4]); expect(removeFromArray([1, 2, 3, 4], 7, 2)).toEqual([1, 3, 4]);
}); });
test.skip('can remove all values', () => { test('can remove all values', () => {
expect(removeFromArray([1, 2, 3, 4], 1, 2, 3, 4)).toEqual([]); expect(removeFromArray([1, 2, 3, 4], 1, 2, 3, 4)).toEqual([]);
}); });
test.skip('works with strings', () => { test('works with strings', () => {
expect(removeFromArray(["hey", 2, 3, "ho"], "hey", 3)).toEqual([2, "ho"]); expect(removeFromArray(["hey", 2, 3, "ho"], "hey", 3)).toEqual([2, "ho"]);
}); });
test.skip('only removes same type', () => { test('only removes same type', () => {
expect(removeFromArray([1, 2, 3], "1", 3)).toEqual([1, 2]); expect(removeFromArray([1, 2, 3], "1", 3)).toEqual([1, 2]);
}); });
}); });