NavigatorPlugins.plugins

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句法
范例
注意事项
规范
浏览器兼容性
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返回 PluginArray object, listing the Plugin objects describing the plugins installed in the application.

In Firefox 29 and later, enumeration of the navigator.plugins array may be restricted as a privacy measure. Applications that must check for the presence of a browser plugin should query navigator.plugins or navigator.mimeTypes by exact name instead of enumerating the navigator.plugins array and comparing every plugin's name. This privacy change does not disable any plugins; it just hides some plugin names from enumeration.

句法

var plugins = navigator.plugins;

plugins is PluginArray object used to access Plugin objects either by name or as a list of items.

The returned value is not a JavaScript array, but has the length property and supports accessing individual items using bracket notation ( plugins[2] ), as well as via item( index ) and namedItem( "name" ) 方法。

范例

The following example function returns the version of the Shockwave Flash plugin.

function getFlashVersion() {
  var flash = navigator.plugins.namedItem('Shockwave Flash');
  if (typeof flash != 'object') {
    // flash is not present
    return undefined;
  }
  if(flash.version){
    return flash.version;
  } else {
    //No version property (e.g. in Chrome)
    return flash.description.replace(/Shockwave Flash /,"");
  }
}

The following example displays information about the installed plugin(s).

var pluginsLength = navigator.plugins.length;
document.body.innerHTML = pluginsLength + " Plugin(s)<br>"
  + '<table id="pluginTable"><thead>'
  +'<tr><th>Name</th><th>Filename</th><th>description</th><th>version</th></tr>'
  +'</thead><tbody></tbody></table>';
var table = document.getElementById('pluginTable');
for(var i = 0; i < pluginsLength; i++) {
  let newRow = table.insertRow();
  newRow.insertCell().textContent = navigator.plugins[i].name;
  newRow.insertCell().textContent = navigator.plugins[i].filename;
  newRow.insertCell().textContent = navigator.plugins[i].description;
  newRow.insertCell().textContent = navigator.plugins[i].version?navigator.plugins[i].version:"";
}

注意事项

Plugin object exposes a small interface for getting information about the various plugins installed in your browser. A list of plugins is also available by entering about:plugins in the browser's Location bar.

规范

规范	状态	注释
HTML 实时标准 The definition of 'NavigatorPlugins.plugins' in that specification.	实时标准	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`plugins`	Chrome Yes	Edge ≤79	Firefox ?	IE ?	Opera ?	Safari ?	WebView Android Yes	Chrome Android Yes	Firefox Android ?	Opera Android ?	Safari iOS ?	Samsung Internet Android Yes

图例

完整支持
兼容性未知 ?

In addition to listing each plugin as a pseudo-array by zero-indexed numeric properties, Firefox provides properties that are the plugin name directly on the PluginArray 对象。

元数据

最后修改： 2019 年 3 月 23 日

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句法

范例

注意事项

规范

浏览器兼容性

图例

相关话题