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);

What will this code output to the console and why?
Difficulty: Average🤨

function createAccumulator(initialValue) {
  let total = initialValue;

  return function(amount) {
    total += amount;
    return total;
  };
}

const accumulator = createAccumulator(10);

console.log(accumulator(5));  
console.log(accumulator(10)); 
console.log(accumulator(-5)); 

const anotherAccumulator = createAccumulator(100);
console.log(anotherAccumulator(50));

JavaScript Task
Write a function findMax(arr) that takes an array of numbers and returns the largest number in the array.
Difficulty: Easy😁

function findMax(arr) {

}

console.log(findMax([3, 5, 7, 2, 8]));

Find the error in the code.
Difficulty: Average🤨

let numbers = [1, 2, 3, 4, 5];

function sumArray(arr) {
    return arr.reduce((accumulator, current) => {
        return accumulator + current;
    }, 0);
}

console.log('Sum:', sumArray(numbers));

numbers = '1, 2, 3, 4, 5'; 
console.log('Sum:', sumArray(numbers));