Courses / JavaScript & the DOM / Lesson 1
1. Values, variables and const
Every programmer starts here. In this lesson you write a complete program, run it, and change it until it does what you want.
const orders = [12.5, 80, 7.25, 43];
const big = orders.filter(total => total > 20);
const withTax = big.map(total => total * 1.19);
const sum = withTax.reduce((a, b) => a + b, 0);
console.log(sum.toFixed(2)); // "146.37"Your turn
Change the program so it greets you by name, then run it in the playground. The checks turn green when the output matches.