HTML onKeyDown-Event calling function and button-click

HTML

<form>
  Search<br>
  <input type="text" id="searchField" onKeyDown="onEnter()">
  <br>
  <button type="button" id="myButton" onClick="myFunc()"> Search </button>
</form>

JavaScript

window.onEnter = function () {
    console.log(event);
    if (event.keyCode == 13) {
        event.preventDefault();
        return false;
    }
}