JAVASCRIPT

ternary operator

(condition) ? (if true, do this) : (otherwise, do this)

ternary if , else if with ternary if

 //else if with ternary if 
 
var x = Number(prompt('Enter number'));
(x < 10) ? 
alert("Your number C") 
: (x >= 10 && x <= 15) ? 
alert("Your number B") 
: (x >= 16 && x <= 20) ?
alert("Your number A") 
: alert("Other");

How does ternary operator work?

const num1 = 3;
const num2 = 3;
num1 == num2 ? console.log('true') : console.log('flase');
//Expected output: true

ternary operator

// (condition) ? (if true, do this) : (otherwise, do this)
const hasAccount = true
// let userDisplayMessage
// if (hasAccount) {
//   userDisplayMessage = 'Welcome Back'
// } else {
//   userDisplayMessage = 'Please Sign Up'
// }
const userDisplayMessage = hasAccount ? 'Welcome Back' : 'Please Sign Up'
console.log(userDisplayMessage)

How does ternary operator works ?

let moneyAmount = 80;
let creditCardAmont = 70;

let drink = (moneyAmount > 60 && creditCardAmont > 50) ? 'buy coke' : 'filter water';
console.log(drink)

ternary operator

// syntax:
condition ? console.log("true") : console.log("false");
// e.g:
let n = 15;
n % 2 === 0 ? console.log("even number") : console.log("odd number");

ternary else

a ? b : b ? c : d


// Eg

function scale (x) {
  return (x > 0) ? "positive"
  : (x < 0) ? "negative"
  : true
};
scale(3) //"positive"

Ternary Operator

condition ? expression-if-true : expression-if-false;

function findGreater(a, b) {
  return a > b ? "a is greater" : "b is greater";
}

ternary operator

isMember ? '$2.00' : '$10.00'
// isMember true =>  output: "$2.00"

// isMember false =>  output: "$10.00"

// isMember null =>  output: "$10.00"

ternary if

// (condition) ? true : false;
//           or
// condition ? true : false;

var x = 15;
(x === 12) ? alert("Is 12") : alert("isn't 12");

ternary operator

 if ($scope.SearchSalesOrderAndCompanyName !== undefined && $scope.SearchSalesOrderAndCompanyName != null ) {
            SearchCriteria += " AND [SalesOrderNo] LIKE '%" + $scope.SearchSalesOrderAndCompanyName + "%' OR ([SO].[CompanyNameOnBill] LIKE '%" + $scope.SearchSalesOrderAndCompanyName + "%')";
        }
        if ($scope.FromDate !== undefined && $scope.FromDate !=null) {
            SearchCriteria += " AND [SO].[SalesOrderDate] LIKE '%" + $scope.FromDate + "%'";
        }
      

Ternary operator

condition ? exprIfTrue : exprIfFalse
The conditional (ternary) operator is the only JavaScript operator that takes three operands: a condition followed by a question mark ( ? ), then an expression to execute if the condition is truthy followed by a colon ( : ), and finally the expression to execute if the condition is falsy

ternary operator

$customer->user->fullName ?? ''

$customer->user->fullName ? $customer->user->fullName : ''
  
isset($customer->user->fullName) ? $customer->user->fullName : ''

syntax of the ternary operator

let variableName = condition ? expressionIfTrue : expressionIfFalse;
Code language: JavaScript (javascript)

Syntax of Ternary Operator

<expression 1> if <condition> else <expression 2>

ternary operator.

print("Equal") if 5==5 else print("Not equal")
5!=5 and 'Equal' or 'Not equal'

Ternary Operator

$check = CONDITION ? "Do this if the statement true" : "Do This if the statement false"

Ternary operator

num =15
print("Positive" if num>=0 else "Negative")

ternary operator

MALE = True
FEMALE = False


# (if_test_is_false, if_test_is_true)[test]
gender = ("female", "male")[MALE]
print("You are a ", "male")
# Output: You are a male


# (if_test_is_false, if_test_is_true)[test]
gender = ("female", "male")[FEMALE]
print("You are a ", "female")
# Output: You are a female

condition = True
# (if_test_is_false, if_test_is_true)[test]
print(2 if condition else 1/0)
#Output is 2

condition = False
# (if_test_is_false, if_test_is_true)[test]
print(2 if condition else 5)
#Output is 5