Have you ever come across the Typescript error message that says, "Property 'scrollIntoView' does not exist on type 'never' ts2339"? If you have encountered this error while working on your TypeScript projects, you're not alone. This issue can be a bit frustrating, but don't worry; I'm here to help you understand why this error occurs and how you can resolve it.
Why does this error occur?
The "Property 'scrollIntoView' does not exist on type 'never' ts2339" error typically occurs when TypeScript is unable to determine the type of a value. In this case, TypeScript is encountering a scenario where it thinks the type is 'never', which essentially means that it cannot find a common type amongst the possible values.
How to resolve the error?
To fix this TypeScript error, you need to explicitly define the type of the value in question or adjust your code to ensure TypeScript can infer the correct type. Here are some steps you can take to address this issue:
1. Check the type of the value:
Make sure that the variable or property you are trying to access 'scrollIntoView' on has a defined type. If TypeScript is unable to infer the type automatically, you may need to explicitly specify the type by adding a type annotation.
2. Use type assertion:
If you are confident about the type of the value and TypeScript is still throwing the error, you can use type assertion to tell TypeScript the actual type of the value. This can be achieved by appending '' or '' (or the appropriate type) after the value.
3. Check for null or undefined values:
Ensure that the value you are trying to access is not null or undefined. TypeScript may infer the type as 'never' if it encounters null or undefined values, leading to the error message.
4. Enable strict null checks:
Enabling strict null checks in your TypeScript configuration can help you catch potential issues with null or undefined values at compile time. This can prevent TypeScript from inferring the type as 'never' in certain scenarios.
Try out the following code snippet, including type assertion, to potentially resolve the issue:
const element = document.getElementById('your-element-id') as HTMLDivElement;
if (element) {
element.scrollIntoView();
}By explicitly defining the type of the 'element' variable as 'HTMLDivElement' and checking for its existence before calling 'scrollIntoView', you can mitigate the TypeScript error.
In conclusion, the "Property 'scrollIntoView' does not exist on type 'never' ts2339" error in TypeScript can be resolved by ensuring that TypeScript can infer the correct type of the value in question. By following the steps outlined above and making necessary adjustments to your code, you can successfully address this issue and continue working on your TypeScript projects smoothly.