JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>

JavaScript

var c=document.getElementsByTagName('DIV')[0];
var s=["ABCDEFGH","ABCDEFG","ABCDEF"];
var search="H";

function find(search,arr) {
  var out=[];
  arr.forEach(function(item){
     if (item.indexOf(search)!=-1) out.push(item);
  });
  return out;
}

find(search,s).forEach(function(item){
  c.innerHTML+=item+"<br>\n";
});