Reduce Revision - (Day 11 - Reduce Revision)

• Count how many words start with a vowel using reduce:

  const words = ['apple', 'banana', 'orange', 'grape', 'umbrella'];

• Find the smallest odd number in this array using reduce:

  const numbers = [11, 6, 3, 9, 14];

• Find the smallest even number in this array using reduce:

  const numbers = [11, 6, 3, 9, 14];

• Count how many fruits contain the letter 'e' using reduce:

  const fruits = ['apple', 'banana', 'grape', 'kiwi'];

• Count how many times the number 5 appears in this array using reduce:

  const numbers = [5, 2, 5, 7, 5, 9]

• Find the sum of only even numbers in this array using reduce:

  const numbers = [4, 7, 10, 13, 16]

In JavaScript, Objects are King.(Day 12)

If you Understand Objects, you Understand JavaScript.

Objects

Objects are key value pair. eg.

const person = {name: "Ram", age: 30, location: "Kathmandu", height: 6};

Task - Create any two objects that you like, but dont make it very simple one like {one: 1, two: 2}. Try to think as it it is useful in real world.

How to create and empty object - 2 ways

const fruit = {};
const car = new Object();

What are object properties ?