javascript / beginner
Snippet
Logical OR (||) for Default Values
The logical OR operator (||) returns the first 'truthy' value it finds. It is commonly used to assign a default value if the primary value is null or undefined.
snippet.js
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const input = null;const username = input || "Guest";console.log(username); // "Guest"
nodejs
Breakdown
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input || "Guest"
Since input is null (falsy), the operator moves to the second operand 'Guest'.