The compiler first tries to evaluate the right-hand expression: GetBoolValue() ? 10 : null The 10 is an int literal (not int?) and null is, well, null. There’s no implicit conversion between those two hence the error message. If you change the right-hand expression to one of the following then it compiles because there is … Read more
It is called the Conditional Operator (which is a ternary operator). It has the form of: condition ? value-if-true : value-if-false Think of the ? as “then” and : as “else”. Your code is equivalent to if (max != 0) hsb.s = 255 * delta / max; else hsb.s = 0;
This is the C ternary operator (Objective-C is a superset of C): label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect; is semantically equivalent to if(inPseudoEditMode) { label.frame = kLabelIndentedRect; } else { label.frame = kLabelRect; } The ternary with no first element (e.g. variable ?: anotherVariable) means the same as (valOrVar != 0) ? valOrVar : … Read more
What you have is a fairly unusual use of the ternary operator. Usually it is used as an expression, not a statement, inside of some other operation, e.g.: var y = (x == 2 ? “yes” : “no”); So, for readability (because what you are doing is unusual), and because it avoids the “else” that … Read more
$result = If ($condition) {“true”} Else {“false”} For use in or as an expression, not just an assignment, wrap it in $(), thus: write-host $(If ($condition) {“true”} Else {“false”})
It is the ternary operator, and it works like in C (the parenthesis are not required). It’s an expression that works like: if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this However, in Ruby, if is also an expression so: if a then b else c end === a ? b : c, except for precedence issues. Both are … Read more
It evaluates to the left operand if the left operand is truthy, and the right operand otherwise. In pseudocode, foo = bar ?: baz; roughly resolves to foo = bar ? bar : baz; or if (bar) { foo = bar; } else { foo = baz; } with the difference that bar will only … Read more
You don’t necessarily need jQuery. JavaScript alone will do this. var a = 2; var b = 3; var c = ((a < b) ? ‘minor’ : ‘major’); The c variable will be minor if the value is true, and major if the value is false. This is known as a Conditional (ternary) Operator. https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Conditional_Operator
The syntax you’re looking for: lambda x: True if x % 2 == 0 else False But you can’t use print or raise in a lambda.
Depends upon the version. The If operator in VB.NET 2008 is a ternary operator (as well as a null coalescence operator). This was just introduced, prior to 2008 this was not available. Here’s some more info: Visual Basic If announcement Example: Dim foo as String = If(bar = buz, cat, dog) [EDIT] Prior to 2008 … Read more