AI solution for Interview Question on BFE.dev
151. What is 300ms tap delay for touch device? How to remove it

However, to answer the original question, the 300ms tap delay is the time delay between a user tapping on a touch device and the device responding to that tap. It was originally introduced to allow for distinguishing between a single tap and a double tap, but it caused frustration for users who were used to instantaneous responsiveness.

To remove the 300ms tap delay, there are a few solutions:

1. Use CSS touch-action property to set the tap event to manipulation, for example:

html {
  touch-action: manipulation;
}

2. Use a JavaScript library like FastClick or ZingTouch that provides a workaround for the delay.

// Example with FastClick
if ('addEventListener' in document) {
    document.addEventListener('DOMContentLoaded', function() {
        FastClick.attach(document.body);
    }, false);
}

3. Use the meta tag to disable zooming on mobile devices, which also removes the delay.

<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">