2011.Final_Value_of_Variable_After_Performing_Operations.js

/**
 * @param {string[]} operations
 * @return {number}
 */
var finalValueAfterOperations = function(operations) {
    let x = 0;
    for(const operation of operations){
        if(operation.includes("+")){
            x++
        }else{
            x--
        }
    }
    return x;
};