There is a programming language with only four operations and one variable X: ++X and X++ increments the value of the variable X by 1. --X and X-- decrements the value of the variable X by 1. Initially, the value of X is 0. Given an array of string

finalValueAfterOperations.js

/**
 * @param {string[]} operations
 * @return {number}
 */
var finalValueAfterOperations = function(operations) {
    // Step 1: Initialize the variable X to 0
    let X = 0;

    // Step 2: Loop through each operation in the array
    for (let i = 0; i < operations.length; i++) {
        let op = operations[i];

        // Step 3: Check if the operation is an increment
        if (op === "++X" || op === "X++") {
            X += 1; // Increase X by 1
        }
        // Step 4: Check if the operation is a decrement
        else if (op === "--X" || op === "X--") {
            X -= 1; // Decrease X by 1
        }
        // No need for an else cluase since all inputs are guaranteed to be valid
    }

    // Step 5: Return the final value of X
    return X;
};