javascript - 优化else条件JavaScript

我有一个TypeScript方法。它将整数值转换/映射为字符串天。我如何才能将此代码改进为更有效的方法？任何的想法？

private _convertIntToStringDays(days: any){
        let dayArray: any = [];
        for (let day in days){
            if (days[day] == 1){
                dayArray.push('monday');
            }
            else if (days[day] == 2){
                dayArray.push('tuesday');
            }
            else if (days[day] == 3){
                dayArray.push('wednesday');
            }
            else if (days[day] == 4){
                dayArray.push('thursday');
            }
            else if (days[day] == 5){
                dayArray.push('friday');
            }
            else if (days[day] == 6){
                dayArray.push('saturday');
            }
            else if (days[day] == 0){
                dayArray.push('sunday');
            }
        }
        dayArray.shift(dayArray[0]);
        console.log(dayArray);
        return dayArray;
    }

最佳答案

将天的名称保存在数组中，并使用变量将其编入索引

private _convertIntToStringDays(days: any) {
        let dayArray: any = [];
        let dayNames = ["sunday", "monday", "tuesday", "wednesday", "thursday", "friday", "saturday"];
        for (let day in days){
            dayArray.push(dayNames[days[day]]);
        }
        dayArray.shift(dayArray[0]);
        console.log(dayArray);
        return dayArray;
}