TypeError: Cannot read property 'splice' of undefined- Angular 5

Question

I am trying to splice object from an array of list of object, passing an object index as the first argument splice(index, 1), but it results in the following error:

Cannot read property 'splice' of undefined.

Answer 1

this.MypostList is somehow evaluated empty in your code. So splice could not be executed on the empty object. Please put the code where you tried to evaluate this.MypostList