javascript - 如何在javascript中将数字数组中的值相乘？

Question

var timeCost =[];
var ride_time = 30;
var cost_per_minute = [0.2, 0.35, 0.4, 0.45];

for (let i = 0; i < cost_per_minute.length; i++ ){
  timeCost.push(cost_per_minute[i]*ride_time) 
}

console.log(timeCost)

Answer 1

使用 .map() 更加简洁:

let cost_per_minute...
const ride_time = 30;
let timeCost = cost_per_minute.map(x => x * ride_time);