📅  最后修改于: 2020-11-04 00:47:53             🧑  作者: Mango
HTML <script> 标签用于指定客户端脚本,例如JavaScript。它可以帮助您在HTML文档中放置脚本。
JavaScript用于图像处理,表单验证和动态内容。
<script>标签的语法如下:
Attribute | Description | Compatibility |
---|---|---|
src | It specifies the URL of an external script file. | HTML 4.01, HTML5 |
type | It specifies the media type of the script. | HTML 4.01 |
async | It is a boolean value which specifies that the script is executed asynchronously. | HTML5 |
defer | It is a boolean value which is used to indicate that script is executed after document has been parsed. | HTML 4.01, HTML5 |
HTML <script>标签可以有两种用法:
<script>标签可以在
要么标记以嵌入脚本代码。让我们看一下在HTML主体中具有script标签的示例。
输出:
JavaScript is a simple language for javatpoint learners
让我们看一下在HTML标头标签中包含<script>标签的示例。
script标签可用于通过src属性链接外部脚本文件。必须在
仅标记。
Element | Chrome | IE | Firefox | Opera | Safari |
Yes | Yes | Yes | Yes | Yes |