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A JavaScript library to make navigation menus highlight active item based on the scroll position.
A JavaScript library to make navigation menus highlight the item based on currently in view section.
Include MenuSpy
<script src="menuspy.js"></script>
MenuSpy
will be available in the global scope.
Or install via NPM/Yarn and require as a module
npm install menuspy
var MenuSpy = require('menuspy');
Initialize the plugin on your menu element
<header id="main-header">
<nav>
<ul>
<li><a href="#features">Features</a></li>
<li><a href="#usage">Usage</a></li>
<li><a href="#options">Options</a></li>
<li><a href="#examples">Examples</a></li>
</ul>
</nav>
</header>
You can also use data-target
on the anchor element with a selector. Example:
<a href="#anything" data-target="selector">Anything</a>
var elm = document.querySelector('#main-header');
var ms = new MenuSpy(elm);
The MenuSpy()
constructor accepts two arguments: the container element and an options object.
Option | Type | Default | Description |
---|---|---|---|
menuItemSelector | String | a[href^="#"] | Menu items selector. |
activeClass | String | active | Class applied on menu item relative to the currently visible section. |
threshold | Integer | 15 | Ammount of space between your menu and the next section to be activated. |
enableLocationHash | Boolean | true | Enable or disable browser's hash location change. |
hashTimeout | Integer | 600 | Timeout to apply browser's hash location. |
callback | Function | function(currentItem) {} | A function to be called every time a new menu item activates. |
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