use-debounce/dist/index.module.js

Debounce hook for react

import{useRef as r,useEffect as n,useMemo as t,useState as e,useCallback as u}from"react";function c(e,u,c,i){var a=this,o=r(null),f=r(0),l=r(0),v=r(null),m=r([]),d=r(),g=r(),p=r(e),w=r(!0);p.current=e;var s="undefined"!=typeof window,x=!u&&0!==u&&s;if("function"!=typeof e)throw new TypeError("Expected a function");u=+u||0;var h=!!(c=c||{}).leading,y=!("trailing"in c)||!!c.trailing,F="maxWait"in c,A="debounceOnServer"in c&&!!c.debounceOnServer,D=F?Math.max(+c.maxWait||0,u):null;n(function(){return w.current=!0,function(){w.current=!1}},[]);var T=t(function(){var r=function(r){var n=m.current,t=d.current;return m.current=d.current=null,f.current=r,l.current=l.current||r,g.current=p.current.apply(t,n)},n=function(r,n){x&&cancelAnimationFrame(v.current),v.current=x?requestAnimationFrame(r):setTimeout(r,n)},t=function(r){if(!w.current)return!1;var n=r-o.current;return!o.current||n>=u||n<0||F&&r-f.current>=D},e=function(n){return v.current=null,y&&m.current?r(n):(m.current=d.current=null,g.current)},c=function r(){var c=Date.now();if(h&&l.current===f.current&&T(),t(c))return e(c);if(w.current){var i=u-(c-o.current),a=F?Math.min(i,D-(c-f.current)):i;n(r,a)}},T=function(){i&&i({})},W=function(){if(s||A){var e=Date.now(),i=t(e);if(m.current=[].slice.call(arguments),d.current=a,o.current=e,i){if(!v.current&&w.current)return f.current=o.current,n(c,u),h?r(o.current):g.current;if(F)return n(c,u),r(o.current)}return v.current||n(c,u),g.current}};return W.cancel=function(){var r=v.current;r&&(x?cancelAnimationFrame(v.current):clearTimeout(v.current)),f.current=0,m.current=o.current=d.current=v.current=null,r&&i&&i({})},W.isPending=function(){return!!v.current},W.flush=function(){return v.current?e(Date.now()):g.current},W},[h,F,u,D,y,x,s,A,i]);return T}function i(r,n){return r===n}function a(n,t,a){var o=a&&a.equalityFn||i,f=r(n),l=e({})[1],v=c(u(function(r){f.current=r,l({})},[l]),t,a,l),m=r(n);return o(m.current,n)||(v(n),m.current=n),[f.current,v]}function o(r,n,t){var e=void 0===t?{}:t,u=e.leading,i=e.trailing;return c(r,n,{maxWait:n,leading:void 0===u||u,trailing:void 0===i||i})}export{a as useDebounce,c as useDebouncedCallback,o as useThrottledCallback};
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