我正在尝试用javascript创建头尾系统。 我坚持尝试保持冲刷状态
到目前为止,我有:
0.00169 started
0.001821 n_workers: 5
0.001833 throttle: 1
0.002152 fetching https://httpbin.org/delay/4
1.012 fetching https://httpbin.org/delay/2
2.014 fetching https://httpbin.org/delay/2
3.017 fetching https://httpbin.org/delay/3
4.02 fetching https://httpbin.org/delay/0
5.022 fetching https://httpbin.org/delay/2
6.024 fetching https://httpbin.org/delay/2
7.026 fetching https://httpbin.org/delay/3
8.029 fetching https://httpbin.org/delay/0
9.031 fetching https://httpbin.org/delay/0
10.61 finished
我不确定自己在做什么错。 有什么建议吗?
谢谢
答案 0 :(得分:0)
看来您正在混淆一些逻辑。
var arr = [0, 0, 1, 1, 1, 0, 1, 0, 1];
我假设0表示正面,1表示背面?
arr["Result"] = "heads";
这会将对象Result
上的属性arr
更改为等于字符串“ heads”,并且可能不是必需的。
let arr = [0, 0, 1, 1, 1, 0, 1, 0, 1];
let headCount = 0,
tailCount = 0;
for (let i = 0; i < arr.length; i++) {
if (arr[i] === 0)
headCount += 1;
else
tailCount += 1;
}
console.log("Heads: " + headCount + " " + "Tails: " + tailCount);
这将遍历数组,并根据该索引处数组的值递增计数变量之一。
答案 1 :(得分:0)
除了Eric H's answer之外,您还可以使用Array.reduce()
和array destructuring轻松获得相同的结果:
const arr = [0, 0, 1, 1, 1, 0, 1, 0, 1];
const [headCount, tailCount] = arr.reduce((r, n) => {
r[n] += 1;
return r;
}, [0, 0]);
console.log("Heads: " + headCount + " " + "Tails: " + tailCount);
答案 2 :(得分:0)
let arr = [0, 0, 1, 1, 1, 0, 1, 0, 1];
let headCount = 0, tailCount = 0;
arr.forEach(value => value ? headCount+=1 : tailCount+=1)
console.log(
`HeadCount: ${headCount}
TailCount: ${tailCount}`)