JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="textInput" name="" class="query">
<button class="searchBtn">Search</button>

JavaScript

let query = document.querySelector('.query');
  let searchBtn = document.querySelector('.searchBtn');

  searchBtn.onclick = function() {
    let url = 'https://www.google.com/search?q=' + query.value;
    window.open(url, '_self');
  }

  var input = document.getElementById("textInput");
  input.addEventListener("keyup", function(event) {
    if (event.keyCode === 13 && input.value) {
      event.preventDefault();
      document.getElementById("searchButton").click();
    } 
  });