Hi,I create and delete buttons dynamically, and I try to record how many buttons I deleted. However the number recorded doesn't correct, I confused why the number increases exponentially instead of one by one.https://framer.cloud/AHwfY/thanks!!!!
One more question, when I destroy elements of a array, and count how many elements be left with "array.lenght" method, the result is the same as before. So I have to move those non-existent elements away from the array like this: index = roundGroup.indexOf(this) layer.destroy() roundGroup.splice(index,1)Is it normal?
Jian - yes, arrays and variables that store a layer will still store that layer, even if it has been destroyed, until they are reinitialized as something else. So to *really* kill a layer, destroy() it and then set its variable name to undefined (e.g. layerA.destroy(); layerA = undefined).
My advice for arrays: use the lodash method _.pull to remove layers from an array. For example, to remove a layer named 'layerA' from an array named 'myArray', use the code _.pull(myArray, layerA).
If I'm storing layers in an array, I'll usually write a function that will do both, pulling a layer from the array and then immediately destroying it.