Drop down menu not work
问题 I'm developing an easy web application, and I'm using two js libraries: dat.gui and three.js. My problem is the drop down menu is locked. I can't open it. // gui initialization (dat.gui) function initGui() { var Options = function() { this.tenda = 'bar'; }; config = new Options(); var gui = new dat.GUI(); var subGui = gui.addFolder('Setting'); subGui.open(); // callbacks subGui.add( config, 'tenda', ['bar', 'pie', 'area']). onChange( function() { if (config.tenda === 'bar') { ... } else if