Ternary operator in javaScript

In simple words ternary operator is if else of javascript but it is inline. It has tree blocks, one is condition, second block will be return if condistion is true and third block will return if condition is false.The following ternary condition works such that if userAuth is true, then msg will be set to welcome. Otherwise, the value will be restricted.

In the below example we are setting value to msg variable based on certian condition. If auth is true then 'welcome' will be store in msg otherwise 'restricted' will be store.

1let msg = (userAuth) ? 'welcome' : 'restricted'

The above example equivalent to the following if else statements

1let msg = ''
2if (userAuth) {
3msg = 'welcome'
4} else {
5msg = 'restricted'
6}