Simplify selector
1 files changed, 2 insertions(+), 2 deletions(-)

M index.html
M index.html +2 -2
@@ 83,8 83,8 @@ 
     <script src="qrcode.min.js"></script>
 
     <script>
-        var inputDom = document.getElementsByClassName("js-qr-input")[0]
-        var outputDom = document.getElementsByClassName("js-qr-output")[0]
+        var inputDom = document.querySelector(".js-qr-input")
+        var outputDom = document.querySelector(".js-qr-output")
         var qr = new QRCode(outputDom, { correctLevel: QRCode.CorrectLevel.L })
 
         var runTimeout = null