I have a big problem with something I've been trying to do for a while now.
I have this Angular 2/4 code in Plunker ( link ) to which you can select one or more cards dragging the mouse on the cards but it is not the exact implementation that I would like to have since it contains bugs and is not exactly what I want.
I found this JS code ( link ) and I would like to implement it in that Plunker with Angular 2 in order to select what is inside the rectangle.
Someone tried to help me and the result was this (plnkr.co/edit/JtkBSRhPNxAphLOtYFWa?p=preview) and it's hard for me to be able Fix it.