source: trip-planner-front/node_modules/uuid/dist/esm-browser/rng.js@ 6a3a178

Last change on this file since 6a3a178 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

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1// Unique ID creation requires a high quality random # generator. In the browser we therefore
2// require the crypto API and do not support built-in fallback to lower quality random number
3// generators (like Math.random()).
4var getRandomValues;
5var rnds8 = new Uint8Array(16);
6export default function rng() {
7 // lazy load so that environments that need to polyfill have a chance to do so
8 if (!getRandomValues) {
9 // getRandomValues needs to be invoked in a context where "this" is a Crypto implementation. Also,
10 // find the complete implementation of crypto (msCrypto) on IE11.
11 getRandomValues = typeof crypto !== 'undefined' && crypto.getRandomValues && crypto.getRandomValues.bind(crypto) || typeof msCrypto !== 'undefined' && typeof msCrypto.getRandomValues === 'function' && msCrypto.getRandomValues.bind(msCrypto);
12
13 if (!getRandomValues) {
14 throw new Error('crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported');
15 }
16 }
17
18 return getRandomValues(rnds8);
19}
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