The error message “cannot read properties of undefined (reading ‘handlereset’)” typically occurs when you are trying to access a property or call a method on an undefined value.
To illustrate with an example, consider the following code snippet:
const obj = undefined;
obj.handlereset();
In the above code, we have an undefined value assigned to the variable obj. When we try to call the handlereset method on it, we get the mentioned error because the obj is not defined and does not have any properties or methods.
To avoid this error, you need to ensure that the variable or object you are trying to access is defined and has the required property or method. For example:
const obj = {
handlereset: function() {
// Do something
}
};
obj.handlereset();
In the above code, we have defined an object obj with a handlereset method. Now, when we call obj.handlereset(), it will work without any error because obj is defined and has the required method.
It is important to check for such undefined values before accessing their properties or methods to avoid encountering this error. You can use conditional statements like if to ensure that the object is defined before accessing its properties or methods.