converting long timestamp to extract year in typescript

Question

From my backend I get an object with date of birth that is a long value.For frontend I use angular 4 (typescript) I would like to extract year from that date of birth to be able to calculate age but I have no idea how to parse long to some kind of Date object in typescript. Could you give me a hint where to look for information?

Maybe something along lines of:

a: Number;
let a = new Date(762861060).getFullYear();

Thank you for help

Welcome to **Stack Overflow**, please try adding some code, then we can start trying to help **you**! :) — Matheus Cuba, Dec 21 '17 at 15:40

score 1 · Answer 1 · answered Dec 21 '17 at 15:58

You can try simple code like this:

var birthDate = new Date(762861060);
var todayDate = new Date();    
var milliDay = 1000 * 60 * 60 * 24; // a day in milliseconds;

var ageInDays = (todayDate - birthDate) / milliDay;   
var ageInYears =  Math.floor(ageInDays / 365 );

console.log(ageInYears)

See more related answers on this and this questions...

score 1 · Accepted Answer · answered Dec 21 '17 at 19:41

1

You're not far off, if you don't need fractional years:

var birthDate = new Date(762861060);
var laterDate = new Date();  
var yearsBetween = laterDate.getFullYear() - birthDate.getFullYear();

answered Dec 21 '17 at 19:41

Robert Penner

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score 0 · Answer 3 · answered Aug 16 '18 at 07:49

0

You can use Moment.js:

import * as moment from 'moment';

var diff = moment.duration((moment(762861060)).diff(moment()));
var age_in_days = diff.days();
var age_in_years = diff.years();

answered Aug 16 '18 at 07:49

Nedzad G

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a minor correction var diff = moment.duration((moment()).diff(moment(762861060))); – Yushin Jan 03 '22 at 11:16

converting long timestamp to extract year in typescript

3 Answers3