Fix TypeError map is not a function in JavaScript
In this post we will give you information about Fix TypeError map is not a function in JavaScript. Hear we will give you detail about Fix TypeError map is not a function in JavaScriptAnd how to use it also give you demo for it if it is necessary.
we are going to learn about how to fix the TypeError: map is not a function in JavaScript
When we use a Array.map() method on a value which is not an data type array we will get the following error in our console.
Example:
const obj = {};obj.map(element => { console.log(element);});Output:
"TypeError: obj.map is not a function
In the example above, we are getting the error because we using the map() method on a object.
To fix the error, we need to call the map() method on a data type array.
Here is an example:
const arr = [2, 3, 4];arr.map(el=> el+2);
or we can check if the given value is an type array or not before calling the map() method on it.So that we can avoid runtime errors.
var arr = [2, 3, 4];if(Array.isArray(arr)){ arr.map(el=> el+2);}Hope this code and post will helped you for implement Fix TypeError map is not a function in JavaScript. if you need any help or any feedback give it in comment section or you have good idea about this post you can give it comment section. Your comment will help us for help you more and improve us. we will give you this type of more interesting post in featured also so, For more interesting post and code Keep reading our blogs