Solve - split is not a function Error in JavaScript

Solve - split is not a function Error #

The "split is not a function" error occurs when we call the split() method on a value that is not of type string. To solve the error, convert the value to a string using the toString() method before calling the split method or make sure to only call the split method on strings.

Here is an example of how the error occurs.

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const str = new Date();

// ⛔️ Uncaught TypeError: str.split is not a function
const result = str.split(' ');

We called the String.split method on an object and got the error back.

To solve the error, make sure to only call the split() method on strings. You can convert most values to a string by using the toString() method.

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const str = new Date();
console.log(typeof str); // 👉️ object

const result = str.toString().split(' ');
console.log(result); // 👉️ ['Fri', 'Dec', ...]

Alternatively, you can check if the value is a string before calling the split() method.

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const str = 100;

const result = typeof str === 'string' ? str.split(' ') : '';
console.log(result); // 👉️ ""

We used a ternary operator to check if the str variable stores a string.

If it does, the value to the left of the comma is returned, otherwise the value to the right is returned.

If the error persists, console.log the value you're calling the split method on and check it's type using the typeof operator.

If the value is an object, there's a very good chance that you are forgetting to access a specific property on which you need to call the split() method.