Fix – splice is not a function in JavaScript

we are going to learn about how to fix the splice is not a function error in JavaScript.

When we use a Array.splice() method on a value which is not an data type array we will get the following error in our console.

Example:

const obj =  {name: "raj", place: "italy"};obj.splice(1, 0);

Output:

"TypeError: obj.splice is not a function

In the example above, we are using the splice() method to remove the properties from a object. So, we are getting the the runtime error because the splice() method is only available for arrays but not for objects.

To fix the error, we can use the delete keyword on a object to remove the properties from it.

Here is an example:

const obj =  {name: "raj", place: "italy"};delete obj.name; // it removes the property 'name'

or we can check if the given value is an type array or not before calling the splice() method on it. So that we can avoid runtime errors.

const arr = [2, 3, 4];if(Array.isArray(arr)){    arr.splice(0, 1);}