Mastering Development

JavaScript – Add an item to an object array depending on index

I have an object array to which I’m add a new property (theNewFieldToAdd) using map, however I only want to add the property if the index is of a certain number. Any ideas?, index) => ({ …row, theNewFieldToAdd: true })),

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How to alter dropEvent action in treeview without loosing basic drag-n-drop functionality in PyQt5?

I’m using my custom item model (subclassed from QAbstractItemModel) with custom QTreeView. I want to allow internal drag-n-drop movement (MoveAction) and, when modifier key or right mouse button is pressed, pass CopyAction to my model (to dropMimeData) to copy items. However, default implementation of dropEvent() in QTreeView seems (from C code) only capable of passing […]