Seeding Math.random causes global pollution/corruption

[ghost]

Being able to seed Math.random would affect all code on a web page, potentially causing security vulnerabilities in some applications and/or situations, that depend on random numbers, that didn't use crypto or SubtleCrypto.

How about, instead, offering a function that returns a seeded random generator?

Example usage:

const myRandom = makeSeededRandom(0.3); // no-so random number generator

const notSoRandomNumber = myRandom(); // number

This would scope the amount of effect that it can have.

[bakkot]

This proposal does not propose to allow setting the seed for Math.random. It's basically exactly what you're asking for already. See readme.

[ghost]

My apologies, I completely skipped that first section, in that case, this issue is completely irrelevant.