This commit is contained in:
BananaBJones 2021-11-05 23:56:07 -06:00
parent 7a00112f9a
commit cc086805b7
9 changed files with 57 additions and 22 deletions

View File

@ -1,9 +1,15 @@
const repeatString = function(string, num) { const repeatString = function(string, num) {
let newString = ''; let newString = '';
for (i = 0; i < num; i++) { if (num >= 0) {
newString += string; for (i = 0; i < num; i++) {
newString += string;
}
} }
else {
return 'ERROR';
}
return newString; return newString;
}; };

View File

@ -13,10 +13,10 @@ describe('repeatString', () => {
test('repeats the string 0 times', () => { test('repeats the string 0 times', () => {
expect(repeatString('hey', 0)).toEqual(''); expect(repeatString('hey', 0)).toEqual('');
}); });
test.skip('returns ERROR with negative numbers', () => { test('returns ERROR with negative numbers', () => {
expect(repeatString('hey', -1)).toEqual('ERROR'); expect(repeatString('hey', -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
@ -31,7 +31,7 @@ describe('repeatString', () => {
was randomaly generated. */ was randomaly generated. */
expect(repeatString('hey', number).match(/((hey))/g).length).toEqual(number); expect(repeatString('hey', number).match(/((hey))/g).length).toEqual(number);
}); });
test.skip('works with blank strings', () => { test('works with blank strings', () => {
expect(repeatString('', 10)).toEqual(''); expect(repeatString('', 10)).toEqual('');
}); });
}); });

View File

@ -1,5 +1,9 @@
const reverseString = function(str) { const reverseString = function(str) {
var newString = '';
for (i = str.length -1; i >=0; i--) {
newString += str[i];
}
return newString;
}; };
// Do not edit below this line // Do not edit below this line

View File

@ -5,14 +5,14 @@ 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!')).toEqual('!cba !321') expect(reverseString('123! abc!')).toEqual('!cba !321')
}) })
test.skip('works with blank strings', () => { test('works with blank strings', () => {
expect(reverseString('')).toEqual('') expect(reverseString('')).toEqual('')
}) })
}); });

View File

@ -1,4 +1,13 @@
const removeFromArray = function() { const removeFromArray = function() {
let array = arguments[0];
for (i = arguments[0].length - 1; i >= 0; i--) {
for (j = 1; j < arguments.length; j++) {
if (arguments[j] === array[i]) {
array.splice(i, 1);
}
}
}
return array;
}; };

View File

@ -4,22 +4,22 @@ 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('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]);
}); });
}); });

View File

@ -7,6 +7,7 @@ sumAll(1, 4) // returns the sum of 1 + 2 + 3 + 4 which is 10
``` ```
## Hints ## Hints
Think about how you would do this on pen and paper and then how you might translate that process into code: Think about how you would do this on pen and paper and then how you might translate that process into code:

View File

@ -1,4 +1,19 @@
const sumAll = function() { const sumAll = function(num1, num2) {
let sum = 0;
if (Math.sign(num1) === 1 && Math.sign(num2) === 1 && typeof(num1) === 'number' && typeof(num2) === 'number') {
if (num1 < num2) {
for (i = num1; i <= num2; i++) {
sum += i;
}
} else {
for (i = num2; i <= num1; i++) {
sum += i;
}
}
} else {
return 'ERROR';
}
return sum;
}; };

View File

@ -4,19 +4,19 @@ describe('sumAll', () => {
test('sums numbers within the range', () => { test('sums numbers within the range', () => {
expect(sumAll(1, 4)).toEqual(10); expect(sumAll(1, 4)).toEqual(10);
}); });
test.skip('works with large numbers', () => { test('works with large numbers', () => {
expect(sumAll(1, 4000)).toEqual(8002000); expect(sumAll(1, 4000)).toEqual(8002000);
}); });
test.skip('works with larger number first', () => { test('works with larger number first', () => {
expect(sumAll(123, 1)).toEqual(7626); expect(sumAll(123, 1)).toEqual(7626);
}); });
test.skip('returns ERROR with negative numbers', () => { test('returns ERROR with negative numbers', () => {
expect(sumAll(-10, 4)).toEqual('ERROR'); expect(sumAll(-10, 4)).toEqual('ERROR');
}); });
test.skip('returns ERROR with non-number parameters', () => { test('returns ERROR with non-number parameters', () => {
expect(sumAll(10, "90")).toEqual('ERROR'); expect(sumAll(10, "90")).toEqual('ERROR');
}); });
test.skip('returns ERROR with non-number parameters', () => { test('returns ERROR with non-number parameters', () => {
expect(sumAll(10, [90, 1])).toEqual('ERROR'); expect(sumAll(10, [90, 1])).toEqual('ERROR');
}); });
}); });