ftlabs/fastclickArchived
Fastclick
Fastclick is a JavaScript library and touch event optimization tool designed to remove the 300ms delay between a physical tap and a click event on mobile browsers. It functions as a lightweight DOM event handler middleware that manages touch-to-click timing to reduce input lag and improve the responsiveness of mobile web interfaces.
The library provides granular control over touch latency removal, including a mechanism to exclude specific elements from this optimization. This allows certain user interface components to maintain native browser touch behavior via CSS class identifiers.
The project handles touch interface optimization by intercepting touch sequences and validating taps to ensure they are not scrolls. Once validated, it uses synthetic click emission to trigger click events immediately, bypassing the default browser delay.
Features
- Touch Tap Delay Fixes - Removes the default browser delay on touch screens to ensure web elements react immediately to physical taps.
- Input Lag Reductions - Reduces input lag between a user tap and a click event to improve mobile website responsiveness.
- Touch Event Interception - Captures touchstart and touchend events to trigger click logic immediately, bypassing browser defaults.
- Latency Optimizers - Improves web interface responsiveness by eliminating lag between screen touches and click events.
- Touch Sequence Processing - Tracks timing and coordinates between touch start and end to distinguish taps from scrolls.
- Mobile Web Performance Frameworks - Improves perceived speed by eliminating the 300ms click delay on mobile devices.
- Event Middleware Systems - Functions as a lightweight DOM event handler middleware managing touch-to-click timing.
- Click Event Handling - Implements synthetic click emission to maintain compatibility with existing click event listeners.
- Touch Event Short-Circuiting - Prevents the default browser click delay by calling preventDefault on touch events.
- Mobile Web Libraries - Polyfill to eliminate the 300ms tap delay on mobile browsers.
- 移动端优化(Optimizing Mobile Performance) - Listed in the “移动端优化(Optimizing Mobile Performance)” section of the Awesome Frontend awesome list.
