houser-js-utils/dist/PerformanceUtils.mjs.map

A comprehensive collection of TypeScript utility functions for common development tasks including array manipulation, string processing, date handling, random number generation, validation, and much more.

{"version":3,"file":"PerformanceUtils.mjs","sources":["../src/PerformanceUtils.ts"],"sourcesContent":["/**\n * @module PerformanceUtils\n * @description A collection of utility functions for performance monitoring, timing, and optimization.\n * @example\n * ```typescript\n * import { PerformanceUtils } from 'houser-js-utils';\n *\n * // Measure execution time\n * const timer = PerformanceUtils.startTimer();\n * // ... some operation\n * const elapsed = PerformanceUtils.endTimer(timer);\n *\n * // Get memory usage\n * const memoryInfo = PerformanceUtils.getMemoryUsage();\n * ```\n */\n\nexport const PerformanceUtils = {\n  /**\n   * Clears all performance marks and measures\n   */\n  clearMarksAndMeasures(): void {\n    performance.clearMarks();\n    performance.clearMeasures();\n  },\n\n  /**\n   * Creates a performance observer\n   * @param callback - Function to call when performance entries are observed\n   * @param entryTypes - Types of entries to observe\n   * @returns Performance observer\n   */\n  createPerformanceObserver(\n    callback: (entries: PerformanceObserverEntryList) => void,\n    entryTypes: string[]\n  ): PerformanceObserver {\n    const observer = new PerformanceObserver(callback);\n    observer.observe({ entryTypes });\n    return observer;\n  },\n\n  /**\n   * Gets the cumulative layout shift\n   * @returns Promise resolving to CLS score\n   */\n  async getCumulativeLayoutShift(): Promise<number> {\n    const cls = performance.getEntriesByType(\"layout-shift\");\n    return cls.reduce((sum, entry) => sum + (entry as any).value, 0);\n  },\n\n  /**\n   * Gets the DOM content loaded time\n   * @returns Promise resolving to DOM content loaded time in milliseconds\n   */\n  async getDomContentLoadedTime(): Promise<number> {\n    const navigation = performance.getEntriesByType(\n      \"navigation\"\n    )[0] as PerformanceNavigationTiming;\n    return navigation.domContentLoadedEventEnd - navigation.startTime;\n  },\n\n  /**\n   * Gets the first contentful paint time\n   * @returns Promise resolving to FCP time in milliseconds\n   */\n  async getFirstContentfulPaint(): Promise<number> {\n    const paint = performance.getEntriesByType(\"paint\");\n    const fcp = paint.find((entry) => entry.name === \"first-contentful-paint\");\n    return fcp ? fcp.startTime : 0;\n  },\n\n  /**\n   * Gets the first input delay\n   * @returns Promise resolving to FID time in milliseconds\n   */\n  async getFirstInputDelay(): Promise<number> {\n    const fid = performance.getEntriesByType(\"first-input\");\n    return fid.length > 0 ? fid[0].startTime : 0;\n  },\n\n  /**\n   * Gets the largest contentful paint time\n   * @returns Promise resolving to LCP time in milliseconds\n   */\n  async getLargestContentfulPaint(): Promise<number> {\n    const lcp = performance.getEntriesByType(\"largest-contentful-paint\");\n    return lcp.length > 0 ? lcp[lcp.length - 1].startTime : 0;\n  },\n\n  /**\n   * Gets the page load time\n   * @returns Promise resolving to page load time in milliseconds\n   */\n  async getPageLoadTime(): Promise<number> {\n    const navigation = performance.getEntriesByType(\n      \"navigation\"\n    )[0] as PerformanceNavigationTiming;\n    return navigation.loadEventEnd - navigation.startTime;\n  },\n\n  /**\n   * Gets the time to first byte (TTFB)\n   * @returns Promise resolving to TTFB in milliseconds\n   */\n  async getTimeToFirstByte(): Promise<number> {\n    const navigation = performance.getEntriesByType(\n      \"navigation\"\n    )[0] as PerformanceNavigationTiming;\n    return navigation.responseStart - navigation.requestStart;\n  },\n\n  /**\n   * Creates a performance mark\n   * @param name - Name of the mark\n   */\n  mark(name: string): void {\n    performance.mark(name);\n  },\n\n  /**\n   * Measures the execution time of a function\n   * @param fn - Function to measure\n   * @param iterations - Number of iterations to run\n   * @returns Object containing execution time statistics\n   */\n  measureExecutionTime<T>(\n    fn: () => T,\n    iterations = 1\n  ): { result: T; time: number; averageTime: number } {\n    const start = performance.now();\n    let result: T;\n\n    for (let i = 0; i < iterations; i++) {\n      result = fn();\n    }\n\n    const end = performance.now();\n    const time = end - start;\n    const averageTime = time / iterations;\n\n    return { result: result!, time, averageTime };\n  },\n\n  /**\n   * Measures the time between two marks\n   * @param startMark - Name of the start mark\n   * @param endMark - Name of the end mark\n   * @returns Object containing measurement details\n   */\n  measure(startMark: string, endMark: string) {\n    try {\n      performance.measure(`${startMark}-${endMark}`, startMark, endMark);\n      const entries = performance.getEntriesByName(`${startMark}-${endMark}`);\n      return entries[entries.length - 1];\n    } catch (error) {\n      console.error(\"Error measuring performance:\", error);\n      return null;\n    }\n  },\n\n  /**\n   * Throttles a function\n   * @param fn - Function to throttle\n   * @param limit - Time limit in milliseconds\n   * @returns Throttled function\n   */\n  throttle<T extends (...args: any[]) => any>(\n    fn: T,\n    limit: number\n  ): (...args: Parameters<T>) => void {\n    let inThrottle: boolean;\n    return (...args: Parameters<T>) => {\n      if (!inThrottle) {\n        fn(...args);\n        inThrottle = true;\n        setTimeout(() => (inThrottle = false), limit);\n      }\n    };\n  },\n};\n"],"names":[],"mappings":"AAiBO,MAAM,mBAAmB;AAAA;AAAA;AAAA;AAAA,EAI9B,wBAA8B;AAC5B,gBAAY,WAAA;AACZ,gBAAY,cAAA;AAAA,EACd;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQA,0BACE,UACA,YACqB;AACrB,UAAM,WAAW,IAAI,oBAAoB,QAAQ;AACjD,aAAS,QAAQ,EAAE,YAAY;AAC/B,WAAO;AAAA,EACT;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,2BAA4C;AAChD,UAAM,MAAM,YAAY,iBAAiB,cAAc;AACvD,WAAO,IAAI,OAAO,CAAC,KAAK,UAAU,MAAO,MAAc,OAAO,CAAC;AAAA,EACjE;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,0BAA2C;AAC/C,UAAM,aAAa,YAAY;AAAA,MAC7B;AAAA,IAAA,EACA,CAAC;AACH,WAAO,WAAW,2BAA2B,WAAW;AAAA,EAC1D;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,0BAA2C;AAC/C,UAAM,QAAQ,YAAY,iBAAiB,OAAO;AAClD,UAAM,MAAM,MAAM,KAAK,CAAC,UAAU,MAAM,SAAS,wBAAwB;AACzE,WAAO,MAAM,IAAI,YAAY;AAAA,EAC/B;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,qBAAsC;AAC1C,UAAM,MAAM,YAAY,iBAAiB,aAAa;AACtD,WAAO,IAAI,SAAS,IAAI,IAAI,CAAC,EAAE,YAAY;AAAA,EAC7C;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,4BAA6C;AACjD,UAAM,MAAM,YAAY,iBAAiB,0BAA0B;AACnE,WAAO,IAAI,SAAS,IAAI,IAAI,IAAI,SAAS,CAAC,EAAE,YAAY;AAAA,EAC1D;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,kBAAmC;AACvC,UAAM,aAAa,YAAY;AAAA,MAC7B;AAAA,IAAA,EACA,CAAC;AACH,WAAO,WAAW,eAAe,WAAW;AAAA,EAC9C;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,MAAM,qBAAsC;AAC1C,UAAM,aAAa,YAAY;AAAA,MAC7B;AAAA,IAAA,EACA,CAAC;AACH,WAAO,WAAW,gBAAgB,WAAW;AAAA,EAC/C;AAAA;AAAA;AAAA;AAAA;AAAA,EAMA,KAAK,MAAoB;AACvB,gBAAY,KAAK,IAAI;AAAA,EACvB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQA,qBACE,IACA,aAAa,GACqC;AAClD,UAAM,QAAQ,YAAY,IAAA;AAC1B,QAAI;AAEJ,aAAS,IAAI,GAAG,IAAI,YAAY,KAAK;AACnC,eAAS,GAAA;AAAA,IACX;AAEA,UAAM,MAAM,YAAY,IAAA;AACxB,UAAM,OAAO,MAAM;AACnB,UAAM,cAAc,OAAO;AAE3B,WAAO,EAAE,QAAiB,MAAM,YAAA;AAAA,EAClC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQA,QAAQ,WAAmB,SAAiB;AAC1C,QAAI;AACF,kBAAY,QAAQ,GAAG,SAAS,IAAI,OAAO,IAAI,WAAW,OAAO;AACjE,YAAM,UAAU,YAAY,iBAAiB,GAAG,SAAS,IAAI,OAAO,EAAE;AACtE,aAAO,QAAQ,QAAQ,SAAS,CAAC;AAAA,IACnC,SAAS,OAAO;AACd,cAAQ,MAAM,gCAAgC,KAAK;AACnD,aAAO;AAAA,IACT;AAAA,EACF;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA,EAQA,SACE,IACA,OACkC;AAClC,QAAI;AACJ,WAAO,IAAI,SAAwB;AACjC,UAAI,CAAC,YAAY;AACf,WAAG,GAAG,IAAI;AACV,qBAAa;AACb,mBAAW,MAAO,aAAa,OAAQ,KAAK;AAAA,MAC9C;AAAA,IACF;AAAA,EACF;AACF;"}