script.js

const video = document.getElementById('video');
const play = document.getElementById('play');
const stop = document.getElementById('stop');
const progress = document.getElementById('progress');
const timestamp = document.getElementById('timestamp');

//
function toggleVideoStatus(){
    if(video.paused){
        video.play();
    }else{
        video.pause();
    }
    return true;
}

function updatePlayIcon(){
    if(video.paused){
        play.innerHTML = '<i class="fa fa-play fa-2x"></i>';
    }else{  
        play.innerHTML = '<i class="fa fa-pause fa-2x"></i>';
    }
}

function updateProgress(){
    progress.value = (video.currentTime / video.duration) * 100;
    let mins = Math.floor(video.currentTime / 60);
    if(mins < 10){
        mins =  '0'+String(mins);
    }
    let secs = Math.floor(video.currentTime % 60);
    if(secs < 10){
        secs =  '0'+String(secs);
    }

    timestamp.innerHTML = `${mins}:${secs}`;
}

function setVideoProgress(){
    video.currentTime = (+progress.value * video.duration) /100;
}

function stopVideo(){
    video.currentTime = 0;
    video.pause();
}

video.addEventListener('click',toggleVideoStatus);
video.addEventListener('pause',updatePlayIcon);
video.addEventListener('play',updatePlayIcon);
video.addEventListener('timeupdate',updateProgress);

play.addEventListener('click',toggleVideoStatus);

stop.addEventListener('click',stopVideo);

progress.addEventListener('change',setVideoProgress);