Javascript/p5.js中的独立随机数生成 [英] Independent random generations in Javascript / p5.js

问题描述

在P5.js中，为了获得独立的随机数，我经常不得不编写多行随机数，例如:

In P5.js, I often have to write more than one line of random in order to get independent random generation such as :

random();
random();
random();

// or 
a = random();
b = random();
c = random();

//etc

p5.js或javascript中是否有任何其他代码可以执行相同/相似的生成，因此可以提高代码效率? 谢谢

is there any alternative code(s) in p5.js or javascript that can perform the same/similar generations and so the code efficiency can be improve? Thanks

推荐答案

如果要将随机数放入数组中，可以使用Array.from简洁地实现它:

If you're putting random numbers into an array, you can do it concisely with Array.from:

const random = () => Math.random();

const arr = Array.from({ length: 3 }, random);
console.log(arr);

您可以通过分解对多个单独的变量执行相同的操作:

You can do the same sort of thing for multiple separate variables by destructuring:

const random = () => Math.random();

const [a, b, c] = Array.from({ length: 3 }, random);
console.log(a);
console.log(b);
console.log(c);

如果您需要使用某些参数调用random，则:

If you need to call random with certain parameters, then:

const random = (low, high) => Math.floor((high - low) * Math.random()) + low;

const [a, b, c] = Array.from({ length: 3 }, () => random(1, 4));
console.log(a);
console.log(b);
console.log(c);

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