rahularity

Kotlin Null Safety

• Null Safety
  • Safe Call Operator ( ?. )
  • Elvis operator ( ?: )
  • Not-null assertion operator ( !! )

Null Safety

A variable that doesn't refers to anything, refers to null. Null is a keyword to allow a variable refer to nothing or to check if it exists (comparison can be done with == or !=)

rahularity

Kotlin Programming (Basics and Important)

Index

• Kotlin Function
• Variable Declaration
• Difference between var and val
• Array
• Type Conversion
• Kotlin Standard Input / Output
• Kotlin Control Flow

rahularity

How To Work With Multiple Github Accounts on a single Machine

Let suppose I have two github accounts, https://github.com/rahul-office and https://github.com/rahul-personal. Now i want to setup my mac to easily talk to both the github accounts.

NOTE: This logic can be extended to more than two accounts also. :)

The setup can be done in 5 easy steps:

Steps:

• Step 1 : Create SSH keys for all accounts
• Step 2 : Add SSH keys to SSH Agent