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| Current File : /home/livedhms/lmgt/node_modules/mongoose/lib/helpers/parallelLimit.js |
'use strict';
module.exports = parallelLimit;
/*!
* ignore
*/
async function parallelLimit(params, fn, limit) {
if (limit <= 0) {
throw new Error('Limit must be positive');
}
if (params.length === 0) {
return [];
}
const results = [];
const executing = new Set();
for (let index = 0; index < params.length; index++) {
const param = params[index];
const p = fn(param, index);
results.push(p);
executing.add(p);
const clean = () => executing.delete(p);
p.then(clean).catch(clean);
if (executing.size >= limit) {
await Promise.race(executing);
}
}
return Promise.all(results);
}