Deep Dive into JavaScript Randomness

Interactive examples comparing everyday Math.random() usage with cryptographic randomness from crypto.getRandomValues().

Random IDs with Math.random()

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Random Sorting with Math.random()

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This matches the common short snippet from the article. It is fine for casual demos, not for security-sensitive selection.

Math.random() Distribution

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A Tiny Predictable PRNG Cache Model

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This is a teaching model, not V8 source code. It shows the risk idea: if generator state is known, future cached values can be simulated.

Generate Secure Integers with crypto.getRandomValues()

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A Short Math.randomValue() Helper

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IE11 Prefix Fallback Shape

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UUID Generation with crypto.randomUUID()

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SubtleCrypto Digest Example

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