Add a few comments

[rbdr/lissajous] / lib / systems / amplitude_adjuster.js

diff --git a/lib/systems/amplitude_adjuster.js b/lib/systems/amplitude_adjuster.js
index 71f72779b13fec0fd7497c39ca7dfdec8e82575d..aed78483b6cd643c06211083bdb8f432dc478cc7 100644 (file)
--- a/lib/systems/amplitude_adjuster.js
+++ b/lib/systems/amplitude_adjuster.js
@@ -10,6 +10,9 @@ const internals = {
   }
 };
 
+/**
+  * UI that adjusts the amplitude of any compatible object
+  */
 export default class AmplitudeAdjuster extends System {
 
   constructor(container) {
@@ -36,6 +39,7 @@ export default class AmplitudeAdjuster extends System {
 
       ['a', 'b', 'c'].forEach(key => {
         nodeElement.appendChild(slider({
+          id: `amplitude-adjuster-${i}-slider-${key}`,
           min: '0',
           max: '1',
           step: '0.01',