JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="choose" />
<input type="text" id="write" />

JavaScript

$("#choose, #write").keyup(function(){
	if($("#choose").val() != "") {
  	$("#write").hide();
  }else if($("#write").val() != "") {
  	$("#choose").hide();
  }else{
  	$("#write").show();
    $("#choose").show();
  }
});