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I have some code with a lot of if/else statements similar to this:
var name = "true"; if (name == "true") { var hasName = 'Y'; } else if (name == "false") { var hasName = 'N'; }; But is there a way to make these statements shorter? Something like ? "true" : "false" ...
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Shorthand if else is one such feature using which you can write if else statement in one line of code. The format of shorthand if else is: statement1 if condition else statement2. If the condition evaluates to True, then statement 1 will execute; otherwise, statement2 will run.
The Ternary Operator One of my favourite alternatives to if...else is the ternary operator. Here expressionIfTrue will be evaluated if condition evaluates to true ; otherwise expressionIfFalse will be evaluated. The beauty of ternary operators is they can be used on the right-hand side of an assignment.
Using the ternary :? operator [spec].
var hasName = (name === 'true') ? 'Y' :'N'; The ternary operator lets us write shorthand if..else statements exactly like you want.
It looks like:
(name === 'true') - our condition
? - the ternary operator itself
'Y' - the result if the condition evaluates to true
'N' - the result if the condition evaluates to false
So in short (question)?(result if true):(result is false) , as you can see - it returns the value of the expression so we can simply assign it to a variable just like in the example above.
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