React Js Map Is Not A Function: Map is not a function occurs when we call the map () method on a value that is not an array. Let newval = data.push (value) setdata (newval) console.log (typeof data). .map doesn't exist from an object {}, it only exists from an array [].
React Js Map Is Not A Function
A problem with fetch API and map function in React JS, please help me from forum.freecodecamp.org
So you can do something like: Web first of all, you have to validate to have data before using the map. Can’t call setstate (or forceupdate) on an.
React Js Map Is Not A Function: So you can do something like: Web first of all, you have to validate to have data before using the map. .map doesn't exist from an object {}, it only exists from an array [].
