how to use if in one line javascript code example

Example 1: js if else statement one line

var time = Date().getHours(); // or something

var clockTime = time > 12 ? 'PM' : 'AM' ;

Example 2: javascript one line if else

var res = 1 == 1 ? 'true' : 'false' // res = true 
var res = 1 == 2 ? 'true' : 'false' // res = false