I cannot integrate js query file in vue - vue.js

Question

i would like to use a js query code that I found on codepen in my vue project, but im not sure How to integrate it .
I simply pasted the file in my created() of my vue component but it doesn seem to work out.. the code is supposing to run a visual animation when typing chinese caractere in the input form.
this is the codepen : https://codepen.io/simeydotme/pen/CFcke
var $input = $('input');
$input.on({
"focus": function(e) {
$(".input-container").addClass("active");
},
"blur": function(e) {
$(".input-container").removeClass("active");
}
});
var previous = null;
setInterval( function() {
if( previous !== $input.val()
|| "" === $input.val()) {
getGoodCharacters( $input );
previous = $input.val();
}
}, 500);
function getGoodCharacters( $this ) {
var output = $this.val().trim();
var letters = output.split("");
var url = "https://service.goodcharacters.com/images/han/$$$.gif";
$(".error-container, .help").removeClass("show");
$(".output-container").empty();
for( letter in letters ) {
var img = letters[letter] + "";
var newurl = url.replace("$$$",img);
loadCharacter( newurl , img );
}
}
function loadCharacter( url , letter ) {
var img = new Image();
var $output = $(".output-container");
var $a = $("<a/>");
var l = $("input").val().length;
var cwidth = "120px";
if( l > 7 ) { cwidth = "70px"; }
else if( l > 6 ) { cwidth = "90px"; }
else if( l > 5 ) { cwidth = "100px"; }
$(img).load(function(){
$a.attr({
"href": url,
"title": "Good Character Chinese Symbol: "+ letter + ""
}).css("width", cwidth ).append( $(this) ).appendTo($output);
$(".help").addClass("show");
}).attr({
src: url
}).error(function(){
$(".error-container").addClass("show");
});
}
var $try = $(".tryme a").on("click", function(e) {
e.preventDefault();
$input.val( $(this).text() );
});
I also imported the jquery module in my componant
import $ from "jquery";
here is the html that i added in the template
<div class="container input-container">
<input type="text" id="input" placeholder="中文" value="中文"/>
</div>
Thanks!