查看Google Chrome Console中所有JavaScript变量的所有JavaScript变量列表

Question

在Firebug中，“ DOM”选项卡显示了您所有公共变量和对象的列表。在Chrome的控制台中，您必须键入要探索的公共变量或对象的名称。

Chrome的控制台是否有一种方法（或至少是命令）显示所有公共变量和对象的列表？它将节省很多打字。

Answer 1

这是您要寻找的输出吗？

for(var b in window) { 
  if(window.hasOwnProperty(b)) console.log(b); 
}

这将列出所有可用的 window 对象（所有函数和变量，例如， $ 和 jQuery 在此页面上等）。不过，这是一个清单。不确定它有多帮助...

否则只要做 window 并开始沿着树下：

window

这会给你 DOMWindow, ，可扩展/可探索的对象。

Answer 2

当脚本执行停止时（例如，在断点上），您可以简单地查看开发人员工具窗口的右窗格中的所有全球群体：

Answer 3

打开控制台，然后输入：

• keys(window) 查看变量
• dir(window) 查看对象

Answer 4

这 window 对象包含所有公共变量，因此您可以在控制台中键入它，然后扩展以查看所有变量/属性/函数。

Answer 5

如果要排除窗口对象的所有标准属性并查看特定于应用程序的全球属性，则将其打印到Chrome Console：

(function(){var standardGlobals=["top","window","location","external","chrome","document","inlineCSS","target","width","height","canvas","data","DOMURL","img","svg","ctx","url","w","a","speechSynthesis","webkitNotifications","localStorage","sessionStorage","applicationCache","webkitStorageInfo","indexedDB","webkitIndexedDB","crypto","CSS","performance","console","devicePixelRatio","styleMedia","parent","opener","frames","self","defaultstatus","defaultStatus","status","name","length","closed","pageYOffset","pageXOffset","scrollY","scrollX","screenTop","screenLeft","screenY","screenX","innerWidth","innerHeight","outerWidth","outerHeight","offscreenBuffering","frameElement","clientInformation","navigator","toolbar","statusbar","scrollbars","personalbar","menubar","locationbar","history","screen","postMessage","close","blur","focus","ondeviceorientation","ondevicemotion","onunload","onstorage","onresize","onpopstate","onpageshow","onpagehide","ononline","onoffline","onmessage","onhashchange","onbeforeunload","onwaiting","onvolumechange","ontimeupdate","onsuspend","onsubmit","onstalled","onshow","onselect","onseeking","onseeked","onscroll","onreset","onratechange","onprogress","onplaying","onplay","onpause","onmousewheel","onmouseup","onmouseover","onmouseout","onmousemove","onmouseleave","onmouseenter","onmousedown","onloadstart","onloadedmetadata","onloadeddata","onload","onkeyup","onkeypress","onkeydown","oninvalid","oninput","onfocus","onerror","onended","onemptied","ondurationchange","ondrop","ondragstart","ondragover","ondragleave","ondragenter","ondragend","ondrag","ondblclick","oncuechange","oncontextmenu","onclose","onclick","onchange","oncanplaythrough","oncanplay","oncancel","onblur","onabort","onwheel","onwebkittransitionend","onwebkitanimationstart","onwebkitanimationiteration","onwebkitanimationend","ontransitionend","onsearch","getSelection","print","stop","open","showModalDialog","alert","confirm","prompt","find","scrollBy","scrollTo","scroll","moveBy","moveTo","resizeBy","resizeTo","matchMedia","requestAnimationFrame","cancelAnimationFrame","webkitRequestAnimationFrame","webkitCancelAnimationFrame","webkitCancelRequestAnimationFrame","captureEvents","releaseEvents","atob","btoa","setTimeout","clearTimeout","setInterval","clearInterval","TEMPORARY","PERSISTENT","getComputedStyle","getMatchedCSSRules","webkitConvertPointFromPageToNode","webkitConvertPointFromNodeToPage","webkitRequestFileSystem","webkitResolveLocalFileSystemURL","openDatabase","addEventListener","removeEventListener","dispatchEvent"];
    var appSpecificGlobals={};
    for (var w in window){
        if (standardGlobals.indexOf(w)==-1) appSpecificGlobals[w]=window[w];
    }
    console.log(appSpecificGlobals);})()

该脚本作为书签很好。要将脚本用作书签，请创建一个新的书签，然后用以下内容替换URL：

javascript:(function(){var standardGlobals=["top","window","location","external","chrome","document","inlineCSS","target","width","height","canvas","data","DOMURL","img","svg","ctx","url","w","a","speechSynthesis","webkitNotifications","localStorage","sessionStorage","applicationCache","webkitStorageInfo","indexedDB","webkitIndexedDB","crypto","CSS","performance","console","devicePixelRatio","styleMedia","parent","opener","frames","self","defaultstatus","defaultStatus","status","name","length","closed","pageYOffset","pageXOffset","scrollY","scrollX","screenTop","screenLeft","screenY","screenX","innerWidth","innerHeight","outerWidth","outerHeight","offscreenBuffering","frameElement","clientInformation","navigator","toolbar","statusbar","scrollbars","personalbar","menubar","locationbar","history","screen","postMessage","close","blur","focus","ondeviceorientation","ondevicemotion","onunload","onstorage","onresize","onpopstate","onpageshow","onpagehide","ononline","onoffline","onmessage","onhashchange","onbeforeunload","onwaiting","onvolumechange","ontimeupdate","onsuspend","onsubmit","onstalled","onshow","onselect","onseeking","onseeked","onscroll","onreset","onratechange","onprogress","onplaying","onplay","onpause","onmousewheel","onmouseup","onmouseover","onmouseout","onmousemove","onmouseleave","onmouseenter","onmousedown","onloadstart","onloadedmetadata","onloadeddata","onload","onkeyup","onkeypress","onkeydown","oninvalid","oninput","onfocus","onerror","onended","onemptied","ondurationchange","ondrop","ondragstart","ondragover","ondragleave","ondragenter","ondragend","ondrag","ondblclick","oncuechange","oncontextmenu","onclose","onclick","onchange","oncanplaythrough","oncanplay","oncancel","onblur","onabort","onwheel","onwebkittransitionend","onwebkitanimationstart","onwebkitanimationiteration","onwebkitanimationend","ontransitionend","onsearch","getSelection","print","stop","open","showModalDialog","alert","confirm","prompt","find","scrollBy","scrollTo","scroll","moveBy","moveTo","resizeBy","resizeTo","matchMedia","requestAnimationFrame","cancelAnimationFrame","webkitRequestAnimationFrame","webkitCancelAnimationFrame","webkitCancelRequestAnimationFrame","captureEvents","releaseEvents","atob","btoa","setTimeout","clearTimeout","setInterval","clearInterval","TEMPORARY","PERSISTENT","getComputedStyle","getMatchedCSSRules","webkitConvertPointFromPageToNode","webkitConvertPointFromNodeToPage","webkitRequestFileSystem","webkitResolveLocalFileSystemURL","openDatabase","addEventListener","removeEventListener","dispatchEvent"]; var $appSpecificGlobals={};for (var w in window){if (standardGlobals.indexOf(w)==-1) $appSpecificGlobals[w]=window[w];} window.$appSpecificGlobals=$appSpecificGlobals;console.log(window.$appSpecificGlobals);})()

Answer 6

大卫·沃尔什（David Walsh）为此有一个不错的解决方案。这是我对此的看法，将他的解决方案与该线程中发现的内容结合在一起。

https://davidwalsh.name/global-variables-javascript

x = {};
var iframe = document.createElement('iframe');
iframe.onload = function() {
    var standardGlobals = Object.keys(iframe.contentWindow);
    for(var b in window) { 
      const prop = window[b];
      if(window.hasOwnProperty(b) && prop && !prop.toString().includes('native code') && !standardGlobals.includes(b)) {
        x[b] = prop;
      }
    }
    console.log(x)
};
iframe.src = 'about:blank';
document.body.appendChild(iframe);

x 现在只有全球。

Answer 7

您可能想尝试这个 火布lite Chrome的扩展。

Answer 8

从相同的更新方法 文章 Avindra提到 - 注射iframe并比较它的 contentWindow 全局窗口属性的属性。

(function() {
  var iframe = document.createElement('iframe');
  iframe.onload = function() {
    var iframeKeys = Object.keys(iframe.contentWindow);
    Object.keys(window).forEach(function(key) {
      if(!(iframeKeys.indexOf(key) > -1)) {
        console.log(key);
      }
    });
  };
  iframe.src = 'about:blank';
  document.body.appendChild(iframe);
})();

Answer 9

在JavaScript控制台中键入以下语句：

debugger

现在，您可以使用普通的调试工具检查全局范围。

公平地说，你会得到 一切 在里面 window 范围（包括浏览器内置），因此可能是一条插入式的框架体验。 ：//

Answer 10

要查看Chrome中的任何变量，请转到“源”，然后“观看”并添加。如果在此处添加“窗口”变量，则可以将其展开并探索。

Answer 11

由于所有“公共变量”实际上都是窗口对象的属性（您正在查看的窗口/选项卡的属性），因此您只需检查“窗口”对象。如果您有多个帧，则必须选择正确的窗口对象（例如在Firebug中）。

Answer 12

Answer 13

尝试此简单命令：

console.log(window)

Answer 14

类型： this 在控制台中，

得到 window object 我认为（？），我认为它基本上与键入相同 window 在控制台。

它至少在Firefox＆Chrome中起作用。