This is the same as the code inside the else portion of an if/ else statement.īy combining that all together we can write the following if/ else statement as a ternary. After the trueResult, a colon is used to separate the trueResult from the falseResult.įinally, the falseResult is the code that is returned if the condition is false. This is essentially the same as the code inside an if statement. The trueResult is the code you want to return from the ternary operator when the condition is true. The conditional or question mark operator. After the condition, a question mark is used to separate the condition from the trueResult. Three Main Uses for the Question Mark () in JavaScript: Ternary Operator, Optional Chaining, Nullish Coalescing. It has the form of: condition value-if-true : value-if-false Think of the as 'then' and : as 'else'.
This is essentially equivalent to the portion inside the parenthesis of an if statement. It is called the Conditional Operator (which is a ternary operator ). For example person1.name = person2.name, or number > 0. The condition is the first portion of the ternary operator and is simply an expression that evaluates to true or false. The condition, trueResult, and falseResult.
As you can see the ternary operator is composed of three distinct parts.
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