Day 0: Task 2: Data Types

10 Days of JavaScript

Original Problem Link

Objective:

Today, we're discussing data types. Check out the attached tutorial for more details.

Task:

Variables named firstInteger, firstDecimal, and firstString are declared for you in the editor below. You must use the operator + to perform the following sequence of operations:

1. Convert secondInteger to an integer (Number type), then sum it with firstInteger and print the result on a new line using console.log.

2. Convert secondDecimal to a floating-point number (Number type), then sum it with firstDecimal and print the result on a new line using console.log.

3. Print the concatenation of firstString and on a new line using console.log. Note that firstString must be printed first.

Solution:

function performOperation(secondInteger, secondDecimal, secondString) {
	const firstInteger = 4;
	const firstDecimal = 4.0;
	const firstString = 'HackerRank ';

	console.log(firstInteger + Number(secondInteger));

	const firstNum = Number(firstDecimal).toFixed(2);
	const secondNum = Number(secondDecimal).toFixed(2);
	const answer = Number(firstNum) + Number(secondNum);

	console.log(answer);
	console.log(firstString + secondString);
}