_2619. Array Prototype Last.md

2619. Array Prototype Last

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First completed : July 10, 2024

Last updated : July 10, 2024

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Related Topics : N/A

Acceptance Rate : 74.08 %

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Solutions

• e2619.js

JavaScript

e2619.js

/**
 * @return {null|boolean|number|string|Array|Object}
 */
Array.prototype.last = function() {
    if (this.length == 0) {
        return -1;
    }
    return this[this.length - 1];
};

/**
 * const arr = [1, 2, 3];
 * arr.last(); // 3
 */