JAVASCRIPT

conditional operator ?:

condition ? consequent : alternative

var rand = new Random();
var condition = rand.NextDouble() > 0.5;

var x = condition ? 12 : (int?)null;

https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/conditional-operator

Conditional operator

if (x === 5 || x === 7 || x === 10 ||x === 20) {
  // run my code
}

Conditional operator

bCondition1 && bCondition2