Adding an eraser tool in workbookeditor page

[annu12340]

At present, the slides only have an option to clear the entire canvas. There is no tool to erase certain parts of the slide

[JithinKS97]

Interestingly, previously we had eraser tool when we used the js library called drawingboard.js for implementing the drawing functionality
https://leimi.github.io/drawingboard.js/

But then we shifted to fabric.js
http://fabricjs.com/
where the implementation of eraser was a bit tricky

[annu12340]

ok
What are the unique features of fabric.js? Why was there a shift from https://leimi.github.io/drawingboard.js/ to http://fabricjs.com/ ?

[JithinKS97]

drawingboardjs is very primitive with only brush tool. But fabric.js is much advanced with a lot of other functionalities. For example, drawing and manipulation of shapes. Even though there is no eraser in fabric js, it is possible to select the strokes and delete them which I though would serve the purpose anyway.