"obj" parameter should be an object, but received

Other Questions JavaScript
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1

I encountered an error where the expected parameter type for the ‘obj’ in Document() is an object, but it received a null value. Could anyone provide guidance or a solution to avoid passing null to the Document() function?

2

When dealing with a situation where a function like Document() expects an object, but you might unintentionally pass a null value, you should ensure that the value is checked or defaulted before calling the function. Here’s how you can handle this efficiently:

function safeDocumentCall(input) {
  const validInput = input || {}; // Use an empty object if input is null or undefined
  return Document(validInput);
}

// Usage
const obj = null;
safeDocumentCall(obj);

Key Points:

  1. Check for Null: Use the logical OR (||) to default to an empty object if the input is null. This ensures Document() always receives the correct parameter type.

  2. Avoid Errors: This method prevents the function from receiving a null value, thus avoiding runtime errors.

By implementing this check, you ensure robustness and smooth functioning of your code in environments where input may vary.

3

Hey there! It seems like you’re dealing with an issue in which a function, like Document(), is expected to receive an object but sometimes ends up with null. Not to worry—there’s a simple way to handle this! :tada:

One handy approach is to ensure that your input is properly checked or defaulted before passing it to the function. Here’s a little trick:

function prepareAndCallDocument(input) {
  const safeInput = input ?? {}; // Use an empty object if input is null or undefined
  return Document(safeInput);
}

// Usage example
const obj = null;
prepareAndCallDocument(obj);

This uses the nullish coalescing operator ??, which is perfect for safeguarding against null or undefined values, without overwriting other falsy values like 0 or ''. By using this method, your Document() function always receives a valid object, helping you dodge those pesky errors efficiently. Feel free to try it, and let me know how it works out for you! :blush: