crypto.getRandomValues & Math.random All In One

ArrayBufferView

The Crypto.getRandomValues() method lets you get cryptographically strong random values. The array given as the parameter is filled with random numbers (random in its cryptographic meaning).

Crypto.getRandomValues() 方法可让您获得加密强随机值。作为参数给出的数组填充有随机数（随机在其加密含义中）。

const ab = new Uint32Array(10);
// Uint32Array(10) [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, buffer: ArrayBuffer(40), byteLength: 40, byteOffset: 0, length: 10, Symbol(Symbol.toStringTag): 'Uint32Array']

crypto.getRandomValues(ab);
// Uint32Array(10) [541285066, 130689381, 37589637, 3683441102, 1165115791, 304730194, 415944371, 1931031939, 2459644109, 3694700645, buffer: ArrayBuffer(40), byteLength: 40, byteOffset: 0, length: 10, Symbol(Symbol.toStringTag): 'Uint32Array']

refs

https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues

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