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Use alea PRNG for setSeed()

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This commit is contained in:
bjoluc 2022-03-13 15:14:25 +01:00
parent 1b0b01c10a
commit bad26ebb08
3 changed files with 8 additions and 21 deletions
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18
package-lock.json generated
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@ -2901,11 +2901,6 @@
"@types/node": "*"
}
},
"node_modules/@types/seedrandom": {
"version": "3.0.2",
"dev": true,
"license": "MIT"
},
"node_modules/@types/semver": {
"version": "6.2.3",
"dev": true,
@ -12548,7 +12543,8 @@
},
"node_modules/seedrandom": {
"version": "3.0.5",
"license": "MIT"
"resolved": "https://registry.npmjs.org/seedrandom/-/seedrandom-3.0.5.tgz",
"integrity": "sha512-8OwmbklUNzwezjGInmZ+2clQmExQPvomqjL7LFqOYqtmuxRgQYqOD3mHaU+MvZn5FLUeVxVfQjwLZW/n/JFuqg=="
},
"node_modules/semver": {
"version": "5.7.1",
@ -15462,7 +15458,6 @@
"@fontsource/open-sans": "4.5.3",
"@jspsych/config": "^1.2.0",
"@types/dom-mediacapture-record": "^1.0.11",
"@types/seedrandom": "^3.0.1",
"base64-inline-loader": "^2.0.1",
"css-loader": "^6.6.0",
"mini-css-extract-plugin": "^2.5.3",
@ -18268,10 +18263,6 @@
"@types/node": "*"
}
},
"@types/seedrandom": {
"version": "3.0.2",
"dev": true
},
"@types/semver": {
"version": "6.2.3",
"dev": true
@ -22610,7 +22601,6 @@
"@fontsource/open-sans": "4.5.3",
"@jspsych/config": "^1.2.0",
"@types/dom-mediacapture-record": "^1.0.11",
"@types/seedrandom": "^3.0.1",
"auto-bind": "^4.0.0",
"base64-inline-loader": "^2.0.1",
"css-loader": "^6.6.0",
@ -24530,7 +24520,9 @@
}
},
"seedrandom": {
"version": "3.0.5"
"version": "3.0.5",
"resolved": "https://registry.npmjs.org/seedrandom/-/seedrandom-3.0.5.tgz",
"integrity": "sha512-8OwmbklUNzwezjGInmZ+2clQmExQPvomqjL7LFqOYqtmuxRgQYqOD3mHaU+MvZn5FLUeVxVfQjwLZW/n/JFuqg=="
},
"semver": {
"version": "5.7.1"

1
packages/jspsych/package.json
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@ -49,7 +49,6 @@
"@fontsource/open-sans": "4.5.3",
"@jspsych/config": "^1.2.0",
"@types/dom-mediacapture-record": "^1.0.11",
"@types/seedrandom": "^3.0.1",
"base64-inline-loader": "^2.0.1",
"css-loader": "^6.6.0",
"mini-css-extract-plugin": "^2.5.3",

10
packages/jspsych/src/modules/randomization.ts
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@ -1,5 +1,5 @@
import rw from "random-words";
import seedrandom from "seedrandom";
import seedrandom from "seedrandom/lib/alea";
/**
* Uses the `seedrandom` package to replace Math.random() with a seedable PRNG.
@ -7,12 +7,8 @@ import seedrandom from "seedrandom";
* @param seed An optional seed. If none is given, a random seed will be generated.
* @returns The seed value.
*/
export function setSeed(seed?: string) {
if (!seed) {
const prng = seedrandom();
seed = prng.int32().toString();
}
seedrandom(seed, { global: true });
export function setSeed(seed: string = seedrandom().int32().toString()) {
Math.random = seedrandom(seed);
return seed;
}