@fullstory/react-native
Version:
The official FullStory React Native plugin
43 lines (39 loc) • 1.2 kB
JavaScript
/* eslint-disable no-bitwise */
export const isTurboModuleEnabled = global.RN$Bridgeless || global.__turboModuleProxy != null;
export const generateUUID = function () {
function hex8(n) {
return ((n >>> 0) + 4294967296).toString(16).substring(1).toUpperCase();
}
// state (a is always initialized to odd value, so state is never 0)
var a = Math.random() * 4294967296 | 1,
b = Math.random() * 4294967296 | 0,
c = Date.now() / 4294967296 ^ Math.random() * 4294967296,
d = Date.now() ^ Math.random() * 4294967296;
// four applications of xorshift128
var f = function () {
var t = d | 0;
t ^= t << 11;
t ^= t >>> 8;
d = t ^ a ^ a >>> 19;
t = c | 0;
t ^= t << 11;
t ^= t >>> 8;
c = t ^ d ^ d >>> 19;
t = b | 0;
t ^= t << 11;
t ^= t >>> 8;
b = t ^ c ^ c >>> 19;
t = a | 0;
t ^= t << 11;
t ^= t >>> 8;
a = t ^ b ^ b >>> 19;
return hex8(a) + '-' + hex8(b).substring(0, 4) + '-' + hex8(b).substring(4) + '-' + hex8(c).substring(0, 4) + '-' + hex8(c).substring(4) + hex8(d);
};
// mix initial state - not strictly necessary
f();
f();
f();
f();
return f;
}();
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