ciorent/rate-limit.js

A lightweight, low-overhead concurrency library

export let fixed=(e,t)=>{let n=e;let r=()=>{n=e};return()=>{if(n===0)return false;if(n--===e)setTimeout(r,t);return true}};export let sliding=(e,t)=>{let n=e;let r=()=>{n++};return()=>{if(n===0)return false;n--;setTimeout(r,t);return true}};export let bucket=(e,t)=>{let n=e;t/=e;let r=()=>{if(n++<e)setTimeout(r,t)};return()=>{if(n===0)return false;if(n--===e)setTimeout(r,t);return true}};