问题
I want to use ember properties to toggle the visibility of a div by calling it's dynamic id, however even though I can do something similar by calling classes, I cannot do the same for id's.
For example: {{bind-attr class=":class1 controller.controllerProperty:class2"}} works fine. I can toggle the controllerProperty from an action in my controller.
You would think the same concept would apply to id's. However {{bind-attr id=":staticId controllerProperty:id{{dynamicIdNumber}}"}} makes the id's disappear all together!
Why is this happening and what is the correct method to be doing this sort of this? I would like to avoid work-around solutions as much as possible.
回答1:
Binding to classes is a special case in Ember as described in here Binding the other attributes to properties is described here
来源：https://stackoverflow.com/questions/26806067/emberjs-how-to-bind-attr-an-id