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Discussion on: Why you shouldn't reassign values in JavaScript

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Replies for: Just noticed you may want to rewrite this bit: I recommend always create variables with the const keyword. This is because variables created with...

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Shalvah • • Edited

They're not really "constants" in a strict sense because, even though you can't reassign, you can modify the referenced value (if it's an object). For instance:

const x = {a: 1};

// this will fail
x = {a: 2};

// but this will pass
x.a = 2;