Update the value of temp variable everytime after the function is called

The below code is written inside a function in react Model class(MVC Architecture). Every time the function is called the temp variable value is set to 1 but I want the value of the updated temp variable to be assigned to the 1st line. Please help

                 var temp = 1;
                console.log("temp = "+temp)
                let sPlanId = constant['SUBSCRIPTION_TIERS'][event_subscription.plan_id];
                console.log("SPlanId = "+sPlanId)
                if(sPlanId-temp == 1 && sPlanId == 2)
                {
                    fix_project_post_cnt = 4;
                    temp = sPlanId;
                }
                else if(sPlanId-temp == 1 && sPlanId == 3)
                {
                    fix_project_post_cnt = 5;
                    temp = sPlanId;
                }
                else if(sPlanId-temp == 2 && sPlanId == 3)
                {
                    fix_project_post_cnt = 9;
                    temp = sPlanId;
                }
                else if(sPlanId-temp == 1 && sPlanId == 4)
                {
                    fix_project_post_cnt = 10;
                    temp = sPlanId;
                }
                else if(sPlanId-temp == 2 && sPlanId == 4)
                {
                    fix_project_post_cnt = 15;
                    temp = sPlanId;
                }
                else if(sPlanId-temp == 3 && sPlanId == 4)
                {
                    fix_project_post_cnt = 19;
                    temp = sPlanId;
                }