module.exports: The actual object that gets returned when module is required
exports: A reference to module.exports, convenient for adding properties
// Method 1: Using exports (shorthand)
exports.add = (a, b) => a + b;
exports.subtract = (a, b) => a - b;
// Method 2: Using module.exports
module.exports = {
add: (a, b) => a + b,
subtract: (a, b) => a - b
};
// Method 3: Exporting a single function
module.exports = (a, b) => a + b;
// Wrong: This breaks the reference
exports = { add: (a, b) => a + b }; // Won't work
Rewriting in plainer words…
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