Aleksey Kontsevich Aleksey Kontsevich - 1 month ago 18
Node.js Question

date.toLocaleDateString is not a function

Have simple function which returns an error:


ERROR: date.toLocaleDateString is not a function


TypeError: date.toLocaleDateString is not a function
at FormatTime (../Src/rootdialog.js:87:58)


Function definition:

function FormatTime(time, prefix = "") {
var date = Date.parse(time);
return ((typeof time != "undefined") ? prefix + date.toLocaleDateString() : "");
}


Function receives
Date
object as input however even explicit conversion to
Date
with
Date.parse()
does not help. Using Node.js 8.x. Any solution?

Answer Source

Date.parse returns a number. You are looking for new Date. Or, if time already is a Date instance, just use time.toLocaleDateString() (and make sure it really is in every call to the function)!

function formatTime(time, prefix = "") {
    return typeof time == "object" ? prefix + time.toLocaleDateString() : "";
}