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@vhxubo
Last active December 18, 2020 08:33
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生成随机学号
const grade = [9, 10, 11, 12];
const sequence = [];
for (let i = 0; i <= 30; i++) {
sequence.push(i);
}
const generate = (arr) => {
const obj = {};
for (item of arr)
if (item < 100) {
const l = item % 10;
const hStr = Math.floor(item / 10).toString();
if (!obj.hasOwnProperty(hStr)) {
obj[hStr] = [];
}
obj[hStr].push(l);
}
return obj;
};
const Lobj = { grade: generate(grade), sequence: generate(sequence) };
const getResult = (obj) => {
let keysArr = Object.keys(obj);
let result = {};
result.high = keysArr[Math.floor(Math.random() * keysArr.length)];
result.low =
obj[result.high][Math.floor(Math.random() * obj[result.high].length)];
return result.high + result.low;
};
console.log(getResult(Lobj.grade) + "-" + getResult(Lobj.sequence));
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