Variable names in JavaScript are case-sensitive. This means that variables having the same name but different case are considered different from each other. You can see this in the following example:
const foobar = 1; const fooBar = 2; const Foobar = 3; const FooBar = 4; const FOOBAR = 5; console.log(foobar); // 1 console.log(fooBar); // 2 console.log(Foobar); // 3 console.log(FooBar); // 4 console.log(FOOBAR); // 5
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