Find last matching object in array of objects

Question

I have an array of objects. I need to get the object type (\"shape\" in this example) of the last object, remove it, and then find the index of the previous object in the ar

Answer 1

You can transform your array to an array boolean type and get the last true index.

const lastIndex = fruits.map(fruit => 
  fruit.shape === currentShape).lastIndexOf(true);