moment.js set time on existing date is not setting the time correctly

Question

let end: Date = new Date();
    let h: string = "13";
    let m: string = "20";
    moment(end).set({ hour: parseInt(h, 10), minute: parseInt(m, 10) });

I am trying to set time on an existing date. however the above doe is not setting the time in the date. The time always comes as ...00:00:...

Any idea?

Thanks,

Solution

You have to convert your moment to a Date, and assign that Date object to your end variable:

end = moment(end)
    .set({ hour: parseInt(h, 10), minute: parseInt(m, 10) })
    .toDate();

Comments

[adolfosrs]

You can go with just parseInt(h). Default radix is 10.

[Estus Flask]

@adolfosrs Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior. Different implementations produce different results when a radix is not specified, usually defaulting the value to 10.