(1, 10)); // 例如输出 7 ``` **生成随机数组元素** 你也可以使用`Math.random()`来从数组中随机选择一个元素: ```javascript const array = [1, 2, 3, 4, 5]; const randomIndex = Math.floor(Math.random() * array.length); const randomElement = array[randomIndex]; console.log(random...
function cryptoRandom() { let initial = new Uint32Array(1); window.crypto.getRandomValues(initial); return initial[0] / (0xFFFFFFFF + 1); }We can use this function in the same situations we would normally have used Math.random() in. To see this for ourselves, if we take our ...
return [...``.padStart(len, ` `)].map((item, i) => i + 1); } else if(`string`) { // string array return [...``.padStart(len, ` `)].map((item, i) => i + 1 + ``); } else { // mixed array return [...``.padStart(len, ` `)].map((item, i) => i + 1...
我们需要了解 Array.prototype.sort 究竟是怎么作用的。 首先我们知道排序算法有很多种,而 ECMAScript 并没有规定 Array.prototype.sort 必须使用何种排序算法。 排序不是我们今天讨论的主题,但是不论用何种排序算法,都是需要进行两个数之间的比较和交换,排序算法的效率和两个数之间比较和交换的次数有关系。 最基础的...
Create an array containing pseudorandom numbers generated using a linear congruential pseudorandom number generator (LCG) whose output is shuffled.. Latest version: 0.2.1, last published: a year ago. Start using @stdlib/random-array-minstd-shuffle in you
Create a factory function for generating pseudorandom values drawn from a ternary PRNG.. Latest version: 0.2.2, last published: 7 months ago. Start using @stdlib/random-array-tools-ternary-factory in your project by running `npm i @stdlib/random-array-to
# random array & shuffle > shuffle 洗牌算法 / 随机算法 https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle  { return 0.5 - Math.random(); }); console.log(originalArray); 实现思路: 首先定义一个数组,然后用sort方... ...
# random array & shuffle > shuffle 洗牌算法 / 随机算法 https://en.wikipedia.org/wiki/Fisher%E2%80%93Yates_shuffle ![](https://img2020.cnblogs.com/blog/740516... xgqfrms 7 689 CF846F Random Query 2019-12-20 17:06 − CF846F Random Query 题意 给定一个数列A,随机选取两个值l,...