Error in Typescript: "Cannot assign to parameter that is of type 'never'"

Here is the code snippet that I am working with:

 FilesToBlock: []; //defined in this class


//within a method of the class
this.FilesToBlock = [];
this.FilesToBlock.push({file: blockedFile, id: fileID});

However, I'm encountering an issue with file and id inside the object being pushed into the array.

Answer №1

By setting your blockingFiles to an empty array without specifying the type of its elements, you trigger an error.

To resolve this issue, consider defining an Interface for your object (containing keys "file" and "id") and then declaring your blockingFiles as an array of that object.

Here is an example solution:

interface IBlockingFiles {
    file: string; // Update the type as needed for your code
    id: string; // Update the type as needed for your code
}

blockingFiles: IBlockingFiles[];

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