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add docs clarification

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Josh de Leeuw 2021-12-07 11:16:26 -05:00
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docs/reference/jspsych-randomization.md
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@ -485,8 +485,10 @@ Returns the seed value.
### Description
This function will override the behavior of `Math.random()` to produce a seedable pseudo random number generator.
This function will override the behavior of `Math.random()` to produce a seedable pseudo random number generator.
It uses the [seedrandom package](https://www.npmjs.com/package/seedrandom).
Note that calling `setSeed()` will change how `Math.random()` behaves for the entire document.
If you have non-jsPsych components on the page that use `Math.random()` they will be affected.
Using `setSeed()` without passing in a seed will generate a random 32-bit seed.
The seed value will be returned from the function call, allowing you to save it in the data for the experiment if needed.