'What is the meaning of nullable() in Laraval migration?

What is the meaning of nullable() in Laraval migration? For example, this is in our migration:

$table->string('middle_name')->nullable();


Solution 1:[1]

It will make the column nullable in the database which means you can store null values to that column or also can be said that it is not a mandatory field in database

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Nishan Timsina