questionmark in javascript code example

Example 1: javascript question mark

//This is what is called a 'Conditional operator'
let result = condition ? value1 : value2
//               ^^        ^^      ^^
let result =  1 == 2   ?  "YES" : "NO!"
console.log(result)  //output: "NO!"

//Basically a short form of an if-else statment

Example 2: javascript conditional ? :

//XCal - Javascript Inline Conditional Sample (condition brackets only for clarity)
//                           v-? = Conditional Operator
//                           v                  v-: = True/False result value separator
//Format =    v-Condition-v  ?  v-When True-v   :  v-When False-v
var vResult = (null == null) ? 'Condition True' : 'Condition False';
//vResult is now 'Condition True';