问解决ESLint错误“无未使用-vars”

EN

function videoInit() {
    // Initialise video
    var tag = document.createElement('script');
    tag.src = "https://www.youtube.com/iframe_api";
    var firstScriptTag = document.getElementsByTagName('script')[0];
    firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);

    // Initialise the player
    var player;

    function onPlayerReady(event) {
        event.target.playVideo();
    }

    function onPlayerStateChange(event) {
        if (event.data === YT.PlayerState.ENDED) {
            event.target.playVideo();
        }
    }
    
    function onYouTubeIframeAPIReady() { 
        player = new YT.Player('player', {
            height: '100%',
            width: '100%',
            videoId: 'ScMzIvxBSi4',
            playerVars : {
                'mute' : 1,
            },
            events: {
                'onReady': onPlayerReady,
                'onStateChange': onPlayerStateChange,
            },
        });
    }
}