Professional Service Engineer Interview Questions and Answers for Freshers

Null represents absence of value, while empty typically refers to a variable with a value of zero length.

• Null is a special value that indicates the absence of a value, while empty typically refers to a variable that has been initialized but contains no data.

• Null is often used in programming languages to indicate that a variable does not point to any object or data, while empty is used to describe a variable that has been initialized but has no content.

• For example, a null poin...read more

Use date formatting functions to convert date into different formats

• Use built-in date formatting functions in programming languages like JavaScript, Python, or Java

• Specify the desired format using format codes like 'YYYY-MM-DD' or 'MM/DD/YYYY'

• Example: In JavaScript, use new Date().toLocaleDateString('en-US', {year: 'numeric', month: '2-digit', day: '2-digit'})