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随机生成字符串 #126
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function randomString(len){ //形参len, 需要生成的随机字符串的长度
len = len || 32;
const t = 'abcdefghigklmnopqrstuvwxyz123456798'; //模拟随机字符串库
const tLen = t.length;
let res = '';//存放最终生成的字符串
for(let i=0; i<len; i++){
res += t.charAt(Math.floor(Math.random()*tLen));
}
return res;
}
console.log(randomString(10)); |
// 随机生成字符串
function getRandomStr(len) {
let res = [];
for (let i = 0; i < len; i++) {
// unicode选取范围32到126
let temp = getRndInteger(32, 126);
res.push(temp)
}
return String.fromCharCode(...res)
}
// 以下函数返回 min(包含)~ max(包含)之间的数字:
function getRndInteger(min, max) {
// 由于random含0不含1,所以直接加一即可实现双闭合
return Math.floor(Math.random() * (max - min + 1)) + min;
}
console.log(getRandomStr(6)) |
function randomString(len, chars) {
let res = []
for (let i = 0; i < length; i++) {
res.push(chars[Math.floor(Math.random() * chars.length)])
}
return res.join('')
} |
生成[0-9a-z] Math.random().toString(36)
// '0.cieke0c5npq' 需要多长可以自己截取 |
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