forked from tornado-packages/archive-monorepo
22 lines
784 B
JavaScript
22 lines
784 B
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.simpleHash = void 0;
|
||
|
|
/***
|
||
|
|
* This is insecure hash function, just for example only
|
||
|
|
* @param data
|
||
|
|
* @param seed
|
||
|
|
* @param hashLength
|
||
|
|
*/
|
||
|
|
function simpleHash(data, seed, hashLength = 40) {
|
||
|
|
const str = data.join('');
|
||
|
|
let i, l, hval = seed !== null && seed !== void 0 ? seed : 0x811c9dcc5;
|
||
|
|
for (i = 0, l = str.length; i < l; i++) {
|
||
|
|
hval ^= str.charCodeAt(i);
|
||
|
|
hval += (hval << 1) + (hval << 4) + (hval << 6) + (hval << 8) + (hval << 24);
|
||
|
|
}
|
||
|
|
const hash = (hval >>> 0).toString(16);
|
||
|
|
return BigInt('0x' + hash.padEnd(hashLength - (hash.length - 1), '0')).toString(10);
|
||
|
|
}
|
||
|
|
exports.simpleHash = simpleHash;
|
||
|
|
exports.default = (left, right) => simpleHash([left, right]);
|