JS获取数组的值的总和
let arr = [1,2,3,4];
let val = eval(arr.join("+"))
// val 10
JS获取数组的对象的值的总和
let arr = [{value:1},{value:2},{value:3},{value:4}];
let val = arr.reduce((sum, e) => sum + Number(e.value || 0), 0)
// val 10
JS获取数组的值的总和
let arr = [1,2,3,4];
let val = eval(arr.join("+"))
// val 10
JS获取数组的对象的值的总和
let arr = [{value:1},{value:2},{value:3},{value:4}];
let val = arr.reduce((sum, e) => sum + Number(e.value || 0), 0)
// val 10