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如何使用 js 检测页面上全局变量

如何使用 js 检测页面上全局变量

js 检测页面全局变量脚本

<!DOCTYPE html>
<html lang="zh-Hans">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <meta name="author" content="xgqfrms">
  <meta name="generator" content="VS code">
  <title>window-global-var-checker</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
  </style>
  <link rel="stylesheet" href="./index.css">
</head>
<body>
  <header>
    <h1>window-global-var-checker</h1>
  </header>
  <main>
    <article>
      <section>
        <a href="https://feiqa.xgqfrms.xyz/index.html"></a>
      </section>
    </article>
  </main>
  <footer>
    <p>copyright&copy; xgqfrms 2020</p>
  </footer>
  <!-- js -->
  <script>
    const log = console.log;
    const vars = Object.keys(window);
    log(`window global vars =`, vars, vars.length);
    try {
      if(window.copy) {
        window.copy(vars);
      }
    } catch (error) {
      log(`copy error`, error);
    }
  </script>
</body>
</html>

Map / Set

去重

"use strict";

/**
 *
 * @author xgqfrms
 * @license MIT
 * @copyright xgqfrms
 * @created 2020-10-01
 * @modified
 *
 * @description
 * @difficulty Easy Medium Hard
 * @complexity O(n)
 * @augments
 * @example
 * @link https://www.cnblogs.com/xgqfrms/p/13794239.html
 * @solutions
 *
 * @best_solutions
 *
 */

const log = console.log;

// empty page keys
const window_global_vars = [...Object.keys(window)];

const autoFindAllGlobalVars = (vars = Object.keys(window)) => {
  const result = [];
  const arr = [...new Set(vars)];
  // log(`arr =`, arr);
  for(const item of arr) {
    if(!window_global_vars.includes(item)) {
      log(`item =`, item);
      result.push(item);
    } else {
      // do nothing
    }
  }
  return result;
}

// autoFindAllGlobalVars();

const window = ["jquery", "react", "vue", "angular", "node.js", ...window_global_vars];
// log(`window =`, window);

const test = autoFindAllGlobalVars(window);
log(`\ntest =`, test);

window global vars

Chrome

const window_global_vars = [
  "window",
  "self",
  "document",
  "name",
  "location",
  "customElements",
  "history",
  "locationbar",
  "menubar",
  "personalbar",
  "scrollbars",
  "statusbar",
  "toolbar",
  "status",
  "closed",
  "frames",
  "length",
  "top",
  "opener",
  "parent",
  "frameElement",
  "navigator",
  "origin",
  "external",
  "screen",
  "innerWidth",
  "innerHeight",
  "scrollX",
  "pageXOffset",
  "scrollY",
  "pageYOffset",
  "visualViewport",
  "screenX",
  "screenY",
  "outerWidth",
  "outerHeight",
  "devicePixelRatio",
  "clientInformation",
  "screenLeft",
  "screenTop",
  "defaultStatus",
  "defaultstatus",
  "styleMedia",
  "onsearch",
  "isSecureContext",
  "performance",
  "onappinstalled",
  "onbeforeinstallprompt",
  "crypto",
  "indexedDB",
  "webkitStorageInfo",
  "sessionStorage",
  "localStorage",
  "onabort",
  "onblur",
  "oncancel",
  "oncanplay",
  "oncanplaythrough",
  "onchange",
  "onclick",
  "onclose",
  "oncontextmenu",
  "oncuechange",
  "ondblclick",
  "ondrag",
  "ondragend",
  "ondragenter",
  "ondragleave",
  "ondragover",
  "ondragstart",
  "ondrop",
  "ondurationchange",
  "onemptied",
  "onended",
  "onerror",
  "onfocus",
  "onformdata",
  "oninput",
  "oninvalid",
  "onkeydown",
  "onkeypress",
  "onkeyup",
  "onload",
  "onloadeddata",
  "onloadedmetadata",
  "onloadstart",
  "onmousedown",
  "onmouseenter",
  "onmouseleave",
  "onmousemove",
  "onmouseout",
  "onmouseover",
  "onmouseup",
  "onmousewheel",
  "onpause",
  "onplay",
  "onplaying",
  "onprogress",
  "onratechange",
  "onreset",
  "onresize",
  "onscroll",
  "onseeked",
  "onseeking",
  "onselect",
  "onstalled",
  "onsubmit",
  "onsuspend",
  "ontimeupdate",
  "ontoggle",
  "onvolumechange",
  "onwaiting",
  "onwebkitanimationend",
  "onwebkitanimationiteration",
  "onwebkitanimationstart",
  "onwebkittransitionend",
  "onwheel",
  "onauxclick",
  "ongotpointercapture",
  "onlostpointercapture",
  "onpointerdown",
  "onpointermove",
  "onpointerup",
  "onpointercancel",
  "onpointerover",
  "onpointerout",
  "onpointerenter",
  "onpointerleave",
  "onselectstart",
  "onselectionchange",
  "onanimationend",
  "onanimationiteration",
  "onanimationstart",
  "ontransitionrun",
  "ontransitionstart",
  "ontransitionend",
  "ontransitioncancel",
  "onafterprint",
  "onbeforeprint",
  "onbeforeunload",
  "onhashchange",
  "onlanguagechange",
  "onmessage",
  "onmessageerror",
  "onoffline",
  "ononline",
  "onpagehide",
  "onpageshow",
  "onpopstate",
  "onrejectionhandled",
  "onstorage",
  "onunhandledrejection",
  "onunload",
  "alert",
  "atob",
  "blur",
  "btoa",
  "cancelAnimationFrame",
  "cancelIdleCallback",
  "captureEvents",
  "clearInterval",
  "clearTimeout",
  "close",
  "confirm",
  "createImageBitmap",
  "fetch",
  "find",
  "focus",
  "getComputedStyle",
  "getSelection",
  "matchMedia",
  "moveBy",
  "moveTo",
  "open",
  "postMessage",
  "print",
  "prompt",
  "queueMicrotask",
  "releaseEvents",
  "requestAnimationFrame",
  "requestIdleCallback",
  "resizeBy",
  "resizeTo",
  "scroll",
  "scrollBy",
  "scrollTo",
  "setInterval",
  "setTimeout",
  "stop",
  "webkitCancelAnimationFrame",
  "webkitRequestAnimationFrame",
  "chrome",
  "caches",
  "ondevicemotion",
  "ondeviceorientation",
  "ondeviceorientationabsolute",
  "cookieStore",
  "showDirectoryPicker",
  "showOpenFilePicker",
  "showSaveFilePicker",
  "speechSynthesis",
  "onpointerrawupdate",
  "trustedTypes",
  "openDatabase",
  "webkitRequestFileSystem",
  "webkitResolveLocalFileSystemURL"
];

refs

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posted @ 2020-10-11 08:52  xgqfrms  阅读(817)  评论(2)  编辑  收藏  举报