From http://en.wikipedia.org/wiki/%3F%3A A GNU extension to C allows omitting the second operand, and using implicitly the first operand as the second also: a = x ? : y; The expression is equivalent to a = x ? x : y; except that if x is an expression, it is evaluated only once. The difference is … Read more
The ternary operator is generally to be avoided, but this form can be quite readable: result = (foo == bar) ? result1 : (foo == baz) ? result2 : (foo == qux) ? result3 : (foo == quux) ? result4 : fail_result; This way, the condition and the result are kept together on the same … Read more
The compiler does not infer the type of the result of the conditional operator from the usage of the result, but from the types of its arguments. The compiler fails when it sees this expression because it cannot deduce the type of the result: IsDateTimeHappy(myDateTime) ? null : myDateTime; Since null and DateTime are not … Read more
Because what you’ve written is the same as: echo (true ? 1 : true) ? 2 : 3; and as you know 1 is evaluated to true. What you expect is: echo (true) ? 1 : (true ? 2 : 3); So always use braces to avoid such confusions. As was already written, ternary expressions … Read more
Ternary operators can’t have statements that don’t return values, void methods. You need statements that have return values. You need to rewrite it. void bark(boolean hamlet) { System.out.println( hamlet ? “To Bark.” : “Not to Bark” ); }
iReport (JasperReports) uses a Ternary operator. For example, consider the following logic: IF boolean condition THEN execute true code ELSE execute false code END IF Using a ternary operator, this becomes: boolean condition ? execute true code : execute false code When using a variable with the following expression: $F{column_value}.intValue() == 42 ? “Life, Universe, … Read more
PHP 7 adds the null coalescing operator: // Fetches the value of $_GET[‘user’] and returns ‘nobody’ // if it does not exist. $username = $_GET[‘user’] ?? ‘nobody’; // This is equivalent to: $username = isset($_GET[‘user’]) ? $_GET[‘user’] : ‘nobody’; You could also look at short way of writing PHP’s ternary operator ?: (PHP >=5.3 only) … Read more
Those parenthesis are what I think is getting you. Try $foo = 1; $bar = ($foo == 1) ? “1” : (($foo == 2) ? “2” : “other”); echo $bar;
Angular 1.1.5 added support for ternary operators: {{myVar === “two” ? “it’s true” : “it’s false”}}
This is a ternary operator: The expression (expr1) ? (expr2) : (expr3) evaluates to expr2 if expr1 evaluates to TRUE, and expr3 if expr1 evaluates to FALSE.