js array reduce 发表于 2020-07-09 123456789var numbers = [15.5, 2.3, 1.1, 4.7];function getSum(total, num) { return total + Math.round(num);}function myFunction(item) { var a = numbers.reduce(getSum , 0);console.log(a)}myFunction(); 123456789var numbers = [15.5, 2.3, 1.1, 4.7];function getSum(total, num) { return total + Math.round(num);}function myFunction(item) { var a = numbers.reduce(getSum);console.log(a)}myFunction();