javascript.md

JavaScript

Accessibility

Make your best effort to ensure that JavaScript event handlers are device independent (i.e. events do not require the use of a mouse) and that your page does not rely on JavaScript to function.

Note: This is not always possible with interactive maps but make your best effort while designing your map if other alternatives are possible.

For example:

$('#target').on('click hover', function () {
    // JavaScript goes here
});

Focus & Hover

Don't make people hover to find things. The hover and focus should have the same functionality throughout an application. It is important to try to maintain the following for your visitors: simple things should be simple, complex things should be possible.

For example:

:hover, :focus {
	/* CSS goes here */
}

Tap

If you turn off pan, zoom, and other mouse/keyboard functionality don't forget to disable the tap handler as well to create a similar experience with touch devices.

For example:

// Disable drag and zoom handlers.
map.dragging.disable();
map.touchZoom.disable();
map.doubleClickZoom.disable();
map.scrollWheelZoom.disable();

// Disable the tap handler, if present.
if (map.tap) map.tap.disable();

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