In FlexJS 0.5.0, many JS files are handwritten. You can tell which ones are handwritten because they have the standard Apache header. Files that were cross-compiled say "Generated by Apache Flex Cross-Compiler from …"
We are just completing the "back port" of all of our JS files to AS, so soon in the nightly build (0.6.0) all JS files will be generated from AS with conditional compilation for SWF-specific or browser-specific code. One advantage of doing that is that more code is shared. I just looked in the back port branch code and that missing check is there for the JS version as well. So yes, ViewBaseDataBinding.js you are using is handwritten. I guess you must have created an app without any data bindings. You should be able to monkey-patch FlexJS JavaScript by editing the ViewBaseDataBinding.js in frameworks/js/FlexJS/libs. Thanks for using FlexJS, -Alex From: Marcus Fritze <marcus.fri...@googlemail.com<mailto:marcus.fri...@googlemail.com>> Reply-To: "dev@flex.apache.org<mailto:dev@flex.apache.org>" <dev@flex.apache.org<mailto:dev@flex.apache.org>> Date: Friday, December 11, 2015 at 1:32 AM To: "dev@flex.apache.org<mailto:dev@flex.apache.org>" <dev@flex.apache.org<mailto:dev@flex.apache.org>> Subject: [FlexJS] Code missing in the generated js file? I am really not sure how flexJS internally works. Is the js code (for example the file ViewBaseDataBinding.js in org.apache.flex.binding) generated from the as version (ViewBaseDataBinding.as) from the complier OR is the js file „handwritten“? Because there is some little difference. in the ViewBaseDataBinding.js in initCompleteHandler function the following code is missing: if (!("_bindings" in this._strand)) return; before the line var bindingData = this.strand_._bindings; This is why I get the following error: Uncaught TypeError: Cannot read property '0' of undefined org.apache.flex.binding.ViewBaseDataBinding.initCompleteHandler goog.events.EventTarget.fireListeners goog.events.EventTarget.dispatchEventInternal_ goog.events.EventTarget.dispatchEvent childCtor.base org.apache.flex.events.EventDispatcher.dispatchEvent org.apache.flex.core.ContainerBase.addedToParent childCtor.base org.apache.flex.core.ViewBase.addedToParent org.apache.flex.core.Application.addElement org.apache.flex.core.Application.start (anonymous function) Thanks Marcus