📅  最后修改于: 2022-03-11 15:03:22.479000             🧑  作者: Mango
let num = Number(0.005) // The Number() only visualizes the type and is not needed
let roundedString = num.toFixed(2); // => "0.01"
let rounded = Number(roudedString); // => 0.01
// toFixed() returns a string (often suitable for printing already)