Coding⏱️ 2 min read📅 2026-05-31

How to Fix: How to suppress "error TS2533: Object is possibly 'null' or 'undefined'"?

TS2533 error occurs when a variable is not initialized before being used. To suppress this error, initialize the variable with a default value or check for null/undefined before using it.

Quick Answer: Initialize the $protected variable with a default value or add a null check to avoid the TS2533 error.

The error TS2533: Object is possibly 'null' or 'undefined' occurs when TypeScript cannot guarantee that an object will not be null or undefined. In your case, the issue arises because you are trying to access properties of the `$protected` object without ensuring it has been initialized.

💡 Why You Are Getting This Error

  • The issue is caused by the fact that TypeScript can't guarantee that `$protected.listEle` will not be null or undefined.

🛠️ Step-by-Step Verified Fixes

Method 1: Null Checking

  1. Step 1: Check if `$protected.listEle` is not null before accessing its properties.

Method 2: Initialize with a default value

  1. Step 1: Initialize `$protected.listEle` with an empty HTML element.

✨ Wrapping Up

By applying these fixes, you can ensure that your code is null-safe and avoid the TS2533 error.

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