Uncaught TypeError: this.state.data.map is not a function

Question

I am new to React, have seen some of the similar issues, but didn’t find why this happens. I am getting an “Uncaught TypeError: this.state.data.map is not a function”. Here

Answer 1

Your initial data state is String., String does not have method .map, you need change your initial state from '' to []

this.state = {  data: [] };