# HTML JavaScript
My First JavaScript
Click me to display Date and Time.
```
{% endcode %}
### The HTML \
```
{% endcode %}
### A Taste of JavaScript
Here are some examples of what JavaScript can do:
{% code overflow="wrap" lineNumbers="true" %}
```markup
My First JavaScript
JavaScript can change the content of an HTML element:
Click Me!
This is a demonstration.
```
{% endcode %}
{% code overflow="wrap" lineNumbers="true" %}
```markup
My First JavaScript
JavaScript can change the style of an HTML element.
Click Me!
```
{% endcode %}
{% code overflow="wrap" lineNumbers="true" %}
```markup
My First JavaScript
Here, a JavaScript changes the value of the src (source) attribute of an image.
Light On
Light Off
```
{% endcode %}
Light On
Light Off
Tag
The HTML `` tag defines an alternate content to be displayed to users that have disabled scripts in their browser or have a browser that doesn't support scripts:
{% code overflow="wrap" lineNumbers="true" %}
```markup
Sorry, your browser does not support JavaScript!
A browser without support for JavaScript will show the text written inside the noscript element.
```
{% endcode %}
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