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JavaScript Quiz

What does || return in JavaScript?

Do you know what will be the output of this code?

JavaScript
console.log(0 || "default");
Show answer and explanation

The answer is "default".

|| returns the first truthy operand, or the last operand if none are truthy. 0 is falsy, so it returns "default".

If 0 should count as a valid value, use ?? instead.

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