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problems(js): add “2619. Array Prototype Last”

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Signed-off-by: Matej Focko <mfocko@redhat.com>
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Matej Focko 2023-06-03 20:30:42 +02:00
parent 86599c22a7
commit de8ef50ac8
Signed by: mfocko
GPG key ID: 7C47D46246790496
1 changed files with 13 additions and 0 deletions
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problems/js/array-prototype-last.js Normal file
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@ -0,0 +1,13 @@
Array.prototype.last = function() {
if (!this.length) {
// empty array, ideally should throw an exception
return -1;
}
return this[this.length - 1];
};
/**
* const arr = [1, 2, 3];
* arr.last(); // 3
*/