console-listener/dist/console-listener.amd.js

A lightweight utility to intercept and handle console method calls.

define((function () { 'use strict';

  class ConsoleListener {
    // 是否为内部调用
    #isInternalCall;
    constructor() {
      this.consoleMethods = ["assert", "clear", "count", "debug", "dir", "dirxml", "error", "exception", "group", "groupCollapsed", "groupEnd", "info", "log", "profile", "profileEnd", "table", "time", "timeEnd", "timeStamp", "trace", "warn"];
      this.allHandlers = [];
      this.methodObj = {};
      this.#isInternalCall = false;
      this.initializeMethods();
    }
    initializeMethods() {
      for (const method of this.consoleMethods) {
        this.methodObj[method] = {
          handlers: []
        };
        this.overrideMethod(method);
      }
    }
    overrideMethod(methodName) {
      if (!console[methodName]) return;
      const originalMethod = console[methodName];
      console[methodName] = (...args) => {
        if (this.#isInternalCall) {
          // 如果是内部调用，直接执行原始方法，防止递归
          originalMethod(...args);
          return;
        }

        // 否则，正常触发监听器
        this.#isInternalCall = true;
        for (const handler of this.methodObj[methodName].handlers) {
          handler(...args);
        }
        for (const handler of this.allHandlers) {
          handler(methodName, ...args);
        }
        this.#isInternalCall = false;
        originalMethod(...args);
      };
    }
    on(methodName, callback) {
      if (typeof methodName === "function") {
        this.allHandlers.push(methodName);
      } else if (typeof methodName === "string" && methodName in this.methodObj) {
        this.methodObj[methodName].handlers.push(callback);
      } else if (typeof methodName === "object") {
        for (const key in methodName) {
          if (key === "all") {
            this.allHandlers.push(methodName[key]);
          } else if (key in this.methodObj) {
            this.methodObj[key].handlers.push(methodName[key]);
          }
        }
      }
    }
  }

  return ConsoleListener;

}));
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