How to create enum in javascript?

Question

I want javascript functions which take integer (week days[i.e 1,2,3...7 ]) and return string (i.e 'Sunday','Monday'....) . but I dont know what are the best way to do this. it means what I should use enum or array or switch case

Js function
function GetFullName(weekDay) { if (weekDay == 1) return "Monday"; if (WeekDay = 2) return "Tuesday"; }
But, I dont want to do like this......Is there any smart way to thi using create Enum ?

Just use an array, if Monday needs to start at 1 use an object — Gabs00
– Gabs00, Commented Sep 11, 2014 at 10:30

V2Solutions - MS Team · Accepted Answer · 2014-09-11 10:35:03Z

3

try this

function GetFullName(weekDay)
{
var days = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
var day = days[ weekDay-1];
return day;
}

edited Sep 11, 2014 at 10:35

answered Sep 11, 2014 at 10:29

V2Solutions - MS Team

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3 Comments

Spokey Over a year ago

If you want to use days as in 1st, 2nd... etc. you will have to add a -1 like days[weekDay-1];

CodingIntrigue Over a year ago

@Spokey You mean days[weekDay-1] :)

Spokey Over a year ago

@RGraham Yes indeed, simple logic error. Should be -1

SSA · Accepted Answer · 2014-09-11 10:33:49Z

2

Just another thought than array, create an object weekday with dayname and index:

var weekdays = {
    Monday : 1,
    Tuesday : 2,
    Wednesday : 3,
    Thursday:4,
    Friday:5,
    Saturday:6,
    Sunday:7

}

function getFullName(weekDay) {
for( var prop in weekdays ) {
        if( weekdays.hasOwnProperty( prop ) ) {
             if( weekdays[ prop ] === weekDay )
                 return prop;
        }
    }
}

var fullName = getFullName(2);
console.log(fullName);

answered Sep 11, 2014 at 10:33

SSA

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1 Comment

prog1011 Over a year ago

Thanks , this will also help me when my js function take short name instead int i have modify it little and it's works for me . If my function is taking short name like 'Mon','Thu' etc. than this function is useful .

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