id
int64 1
10k
| question
stringclasses 10
values | solution
stringclasses 10
values | difficulty
stringclasses 3
values | topic
stringclasses 5
values |
|---|---|---|---|---|
5,301 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,302 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,303 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,304 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,305 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,306 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | easy | arrays |
5,307 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | hard | loops |
5,308 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,309 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,310 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,311 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,312 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,313 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,314 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,315 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
5,316 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,317 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,318 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | hard | strings |
5,319 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | hard | strings |
5,320 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | hard | strings |
5,321 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | medium | strings |
5,322 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,323 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | hard | loops |
5,324 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,325 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,326 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,327 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | easy | arrays |
5,328 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,329 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,330 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,331 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,332 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | medium | recursion |
5,333 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,334 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,335 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | medium | arrays |
5,336 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,337 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,338 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | easy | arrays |
5,339 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | medium | arrays |
5,340 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,341 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,342 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
5,343 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,344 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,345 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,346 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | hard | arrays |
5,347 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,348 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,349 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | easy | arrays |
5,350 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,351 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,352 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,353 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | hard | arrays |
5,354 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | medium | recursion |
5,355 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,356 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,357 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,358 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | easy | arrays |
5,359 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | medium | recursion |
5,360 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,361 | Write a function that reverses a string. | function reverseString(s) {
return s.split('').reverse().join('');
} | easy | strings |
5,362 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,363 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,364 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,365 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | medium | recursion |
5,366 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,367 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | hard | math |
5,368 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | medium | loops |
5,369 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,370 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | medium | math |
5,371 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,372 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | medium | arrays |
5,373 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | medium | math |
5,374 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,375 | Write a function that returns the sum of an array. | function sumArray(arr) {
return arr.reduce((a, b) => a + b, 0);
} | easy | arrays |
5,376 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
5,377 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | easy | loops |
5,378 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
5,379 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | hard | strings |
5,380 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | medium | math |
5,381 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | hard | math |
5,382 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
5,383 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,384 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | medium | recursion |
5,385 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | medium | loops |
5,386 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | medium | arrays |
5,387 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | easy | arrays |
5,388 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,389 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,390 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,391 | Write a function that removes duplicates from an array. | function removeDuplicates(arr) {
return [...new Set(arr)];
} | hard | arrays |
5,392 | Write a function that checks if a string is a palindrome. | function isPalindrome(s) {
return s === s.split('').reverse().join('');
} | easy | strings |
5,393 | Write a function that checks if a number is prime. | function isPrime(n) {
if (n <= 1) return false;
for (let i = 2; i * i <= n; i++) {
if (n % i === 0) return false;
}
return true;
} | easy | math |
5,394 | Write a function that prints numbers from 1 to 100. | function printNumbers() {
for (let i = 1; i <= 100; i++) {
console.log(i);
}
} | medium | loops |
5,395 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,396 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | easy | recursion |
5,397 | Write a function that finds even numbers in an array. | function findEven(arr) {
return arr.filter(num => num % 2 === 0);
} | easy | loops |
5,398 | Write a recursive function to compute Fibonacci numbers. | function fibonacci(n) {
if (n <= 1) return n;
return fibonacci(n - 1) + fibonacci(n - 2);
} | medium | recursion |
5,399 | Write a function that returns the factorial of a number. | function factorial(n) {
if (n === 0) return 1;
return n * factorial(n - 1);
} | easy | math |
5,400 | Write a recursive function to sum an array. | function sumArrayRec(arr, index = 0) {
if (index >= arr.length) return 0;
return arr[index] + sumArrayRec(arr, index + 1);
} | easy | recursion |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.