Why does object[key] return a value but object.key returns undefined in the following code? - PeakU

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Why does object[key] return a value but object.key returns undefined in the following code?

I'm just wondering why I can't use dot notation with key.

const object = {
 a: 1,
 b: 2,
 c: 3
};

let key = 'a';
 console.log(object.key);
 console.log(object[key]);

about 4 years ago · Juan Pablo Isaza

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