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Programming quizzes and knowledge tests Short quizzes on programming, logic and computer science. Test and improve your coding knowledge. Join 👉 https://rebrand.ly/bigdatachannels DMCA: @disclosure_bds Contact: @mldatascientist

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#css #flexbox #cheatsheet
#css #flexbox #cheatsheet

What does the typeof operator return for an array?
Anonymous voting

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);

What is Redux in the context of React?
Anonymous voting

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");
}

Which HTML element is used to define a navigation section?
Anonymous voting

#css #cheatsheet
#css #cheatsheet

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

Which CSS property is used to create space between elements on a page?
Anonymous voting

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();

Which JavaScript method is used to create a new instance of a Date object?
Anonymous voting

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);

Which HTML tag is used to define a list of key-value pairs?
Anonymous voting

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();

What does the "margin: 0 auto;" CSS rule do?
Anonymous voting

What is the purpose of the "Context API" in React?
Anonymous voting

Find the error in the code. Difficulty: Easy😁
function add(a, b) {
  return a + b;
}

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

What is the "useState" hook in React used for?
Anonymous voting

#html
#html

What is the purpose of the "If" statement in JavaScript?
Anonymous voting