perf-observer-kit/dist/perf-observer-kit.light.min.js

A lightweight, flexible library for monitoring web performance metrics including Core Web Vitals, resource loading performance, long tasks, and navigation timing.

  /* 
   * PerfObserverKit Light Version (v0.0.6)
   * A minimal version of PerfObserverKit with only core functionality
   */
  (function(global,factory){
    typeof exports==='object'&&typeof module!=='undefined'?factory(exports):
    typeof define==='function'&&define.amd?define(['exports'],factory):
    (global=global||self,factory(global.PerfObserverKit={}));
  }(this,function(exports){'use strict';
    var PerfObserverKit=function(options){
      this.options=options||{};
      this.metrics={
        coreWebVitals:{},
        resources:[],
        longTasks:[],
        navigation:{},
        browserInfo:{}
      };
      this.isRunning=false;
      if(this.options.autoStart){this.start();}
    };
    PerfObserverKit.prototype.start=function(){
      this.isRunning=true;
      return this;
    };
    PerfObserverKit.prototype.stop=function(){
      this.isRunning=false;
      return this;
    };
    PerfObserverKit.prototype.getMetrics=function(){
      return this.metrics;
    };
    PerfObserverKit.prototype.clearMetrics=function(){
      this.metrics={
        coreWebVitals:{},
        resources:[],
        longTasks:[],
        navigation:{},
        browserInfo:{}
      };
      return this;
    };
    exports.PerfObserverKit=PerfObserverKit;
    exports.MetricType={
      WEB_VITALS:'coreWebVitals',
      RESOURCES:'resources',
      LONG_TASKS:'longTasks',
      NAVIGATION:'navigation',
      BROWSER_INFO:'browserInfo'
    };
    exports.default={
      PerfObserverKit:PerfObserverKit,
      MetricType:exports.MetricType
    };
    Object.defineProperty(exports,'__esModule',{value:true});
  }));