Find the error in the code.
Difficulty: Easy😁

function add(a, b) {
  return a + b;
}

const result = add(5);  
console.log(result);

Find the error in the code.
Difficulty: Hard😤

async function fetchData() {
  const response = await fetch('https://api.example.com/data');
  const data = await response.json();
  return data;
}

async function processData() {
  const data = fetchData(); 
  console.log(data);
}

processData();

JavaScript Task
Write a double function that takes an array of numbers and returns a new array with each number multiplied by 2.
Difficulty: Average🤨

const numbers = [1, 2, 3, 4, 5];
const doubledNumbers = double(numbers);

console.log(doubledNumbers);

Find the error in the code.
Difficulty: Average🤨

const person = {
  name: "John",
  greet: function() {
    setTimeout(function() {
      console.log(Hello, my name is ${this.name});
    }, 1000);
  }
};

person.greet();

JavaScript Task
Write a greet function that takes a name and prints the message "Hello, [name]!".
Difficulty: Easy 😁

greet("John");
greet("Alex");

#css #cheatsheet

What will this code output?
Difficulty: Average🤨

const obj1 = { name: 'Alice' };
const obj2 = { name: 'Alice' };

if (obj1 === obj2) {
    console.log("true");
} else {
    console.log("false");
}

Find the error in the code.
Difficulty: Average🤨

const numbers = [1, 2, 3, 4, 5];
const doubleNumbers = numbers.map(function(num) {
  num *= 2;
});
console.log(doubleNumbers);

#css #flexbox #cheatsheet

What will this code output to the console and why?
Difficulty: Hard😤

function addToArray(arr, value) {
  arr.push(value);
  return arr;
}

const numbers = [1, 2, 3];
const result = addToArray(numbers, 4);
console.log(result);
console.log(numbers);