Front-End/reactjs/chapter04/math_object.js

17 lines
334 B
JavaScript

// math object
console.log(Math)
console.log(Math.PI)
console.log(Math.E)
const area = 7.4
console.log(Math.round(area))
console.log(Math.floor(area))
console.log(Math.ceil(area))
console.log(Math.trunc(area))
// random numbers
const random = Math.random()
console.log(random)
console.log(Math.round(random * 100))