stpg script

HTML
<form method="get" id="searchBarForm" autocomplete="off" >
<div id="textoBusqueda"> <input onkeydown="fAction(event)" id="searchBar" type="text"  name="q" placeholder="honestly, it really do be like that . . ." required autofocus="autofocus" onfocus="this.select()" >
	<hr id="line">
</form>

JS

function fAction(event) {
    var x = event.key;
    if (x == "Enter") {
        event.preventDefault()
        let text = document.getElementById("searchBar").value;
        let pre= text.substring(0, 3);
        let next= text.substring(3);
        if (pre == "red" || pre == "4ch") {
            switch (next) {
                case ("red"):
                    switch (siguiente) {
                        case ("d2"):
                            url = "https://www.reddit.com/r/dota2/"
                            break;
                        .
						.
						.

                        default:
                            url = "https://www.reddit.com/";
                            break;
                    }
                    break;
                case ("4ch"):
                    switch (next) {
                        case ("wg"):
                            url = "https://boards.4chan.org/wg/";
                            break;
                        .
						.
						.
                        default:
                            url = "https://boards.4chan.org";
                            break;
                    }
            }
        } else {
            switch (text) {
                case ("yt"):
                    url = "https://www.youtube.com/";
                    break;
                .
				.
				.
                default:
                    url = 'https://duckduckgo.com/?q=' + text;
                    break;
            }
        }
        window.open(url, '_self');
    }
}