<slot>

译者注： 本翻译的一些术语参考了Vuejs-中文页面。

HTML <slot> 元素 ，作为 Web Components 技术套件的一部分，是Web组件内的一个占位符。该占位符可以在后期使用自己的标记语言填充，这样您就可以创建单独的DOM树，并将它与其它的组件组合在一起。

Content categories Flow content, phrasing content
Permitted content Transparent
Events slotchange
Tag omission 不允许，开始标签和结束标签都不能省略。
Permitted parents Any element that accepts phrasing content
Permitted ARIA roles None
DOM interface HTMLSlotElement

属性

此元素有全局属性。

name
插槽的名字
拥有name属性的插槽叫具名插槽 。

示例

<template id="element-details-template">
  <style>
    details {font-family: "Open Sans Light", Helvetica, Arial, sans-serif }
    .name {font-weight: bold; color: #217ac0; font-size: 120% }
    h4 {
      margin: 10px 0 -8px 0;
      background: #217ac0; 
      color: white;
      padding: 2px 6px;
      border: 1px solid #cee9f9; 
      border-radius: 4px;
    }
    .attributes { margin-left: 22px; font-size: 90% }
    .attributes p { margin-left: 16px; font-style: italic }
  </style>
  <details>
    <summary>
      <code class="name">&lt;<slot name="element-name">NEED NAME</slot>&gt;</code>
      <i class="desc"><slot name="description">NEED DESCRIPTION</slot></i>
    </summary>
    <div class="attributes">
      <h4>Attributes</h4>
      <slot name="attributes"><p>None</p></slot>
    </div>
  </details>
  <hr>
</template>

Note: 您可以在 element-details (see it running live)找到这个示例的完整演示版。另外，您也可以在Using templates and slots这里找到具体的解释。

规范

Specification Status Comments
HTML Living Standard
<slot>		 Living Standard
DOM
Slots		 Living Standard

浏览器兼容性

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
slotChrome Full support 53Edge Full support 79Firefox Full support 63
Full support 63
No support 59 — 63
Disabled
Disabled From version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 40Safari Full support 10WebView Android Full support 53Chrome Android Full support 53Firefox Android Full support 63
Full support 63
No support 59 — 63
Disabled
Disabled From version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 41Safari iOS Full support 10Samsung Internet Android Full support 6.0
nameChrome Full support 53Edge Full support 79Firefox Full support 63
Full support 63
No support 59 — 63
Disabled
Disabled From version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 40Safari Full support 10WebView Android Full support 53Chrome Android Full support 53Firefox Android Full support 63
Full support 63
No support 59 — 63
Disabled
Disabled From version 59 until version 63 (exclusive): this feature is behind the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No support ? — 59
Disabled
Disabled Until version 59 (exclusive): this feature is behind the dom.webcomponents.enabled preference (needs to be set to true) and the dom.webcomponents.shadowdom.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android Full support 41Safari iOS Full support 10Samsung Internet Android Full support 6.0

Legend

Full support  
Full support
No support  
No support
User must explicitly enable this feature.
User must explicitly enable this feature.