CODEWITHSUNDEEP
javascript
sigmaxf
sigmaxf

Reputation: 8502

Javascript current date with an argument

Pretty straightforward, I have this:

var optionalDate;
var date = new Date(optionalDate || null);

What I want to do is, create a date with the optional date if available, if not, create today's date. If I pass null to the function (as it is in the example), it will create Wed Dec 31 1969, If I pass "", won't work, and if I leave blank, also won't work..

Is there any parameter that can be used to get today's date (I know the absence of parameters would work, but wouldn't be valid in the || operation) . Sorry for the simple question, but I couldn't find the answer to this.

Upvotes: 3

Views: 301

Answers (3)

choz
choz

Reputation: 17898

You can also try,

var date = new Date(optionalDate || Date.now());

date gives you the current date IF optionalDate is either '', null or false.

Upvotes: 1

nikoss
nikoss

Reputation: 3698

If You pass null inside Date object it will return Thu Jan 01 1970 so you can't do that instead you can check if that exists like below:

optionalDate?new Date(optionalDate):new Date;

this will return a date object from optional date if possible otherwise today's date

Upvotes: 1

Barmar
Barmar

Reputation: 782785

Use a ternary expression:

var date = optionalDate ? new Date(optionalDate) : new Date();

Upvotes: 2

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