Javascript - 找到参数下面所有 3 或 5 的倍数的总和
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时间：2020-10-29 07:10:45 来源:igfitidea点击:
Javascript - Find the sum of all the multiples of 3 or 5 below parameter
提问by Wireless Squad
I'm attempting to do what the title says however this code does not function. Can anyone give any tips on how to make this return correctly?
我正在尝试按照标题所说的做，但是此代码不起作用。任何人都可以提供有关如何正确返回的任何提示吗？
function multiples(number) {
let sum = 0;
for (let i = 0; i <= number; i++) {
if (i % 3 === 0 || i % 5 === 0) {
sum += i;
}
}
}
回答by gurvinder372
You are just missing a returnstatement.
你只是缺少一个return声明。
Demo
演示
function multiples(number) {
let sum = 0;
for (let i = 0; i <= number; i++) {
if (i % 3 === 0 || i % 5 === 0) {
sum += i;
}
}
return sum;
}
console.log( multiples(10) );
console.log( multiples(5) );
console.log( multiples(6) );回答by Sunny Patel
<script type="text/javascript">
var sum = 0;
var number = 15;
for (var i = 0; i <= number; i++) {
if (i % 3 == 0 || i % 5 == 0) {
alert(i);
sum += i;
}
}
alert(sum); // 60
</script>
回答by stesel
const multiplies = (number) => {
return Array.apply(null, {length: number}).map((v, i) => i).reduce((sum, i) => {
return (i % 3 === 0 || i % 5 === 0) ? sum + i : sum;
}, 0);
}
