question mark operator 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: question mark and colon in javascript
const isBlack = false;const text = isBlack ? 'Yes, black!' : 'No, something else.';console.log(text);// "No, something else."
Example 3: single if statement js true false
condition ? exprIfTrue : exprIfFalse
Example 4: ternary operator in javascript
FullName: (obj.FirstName && obj.LastName) ? obj.FirstName + " " + obj.LastName : "missing values",
Example 5: question mark operator javascript
voteable = (age < 18) ? "Too young":"Old enough"
// condition ? if true : if false