How to compare two Moment.js Objects

arrays, comparison, datetime, javascript, momentjs

Solution

moment("2016-01-01") !== moment("2016-01-01"); //true
//just like
{a:1} !== {a:1}; //true

Javascript objects cannot be compared like this, same with moment's javascript objects. Moment has its own implementation to check if dates are equal. use isSame

moment('2010-10-20').isSame('2010-10-20'); // true
moment('2010-10-20').isSame(moment('2010-10-20')); // true

You can also use Array.filter to check this.

I wonder if you meant `fearadios = allFeradios()` as in a function call?

`allFeradios.length` doesn't sound right in your example! as it is a function name, so is feradios.

var feriados = function addFeriados(){
            feriados = [];
            feriados.push(moment("2016-01-01"));
            feriados.push(moment("2016-02-08"));
            feriados.push(moment("2016-02-09"));
            feriados.push(moment("2016-03-25"));
            feriados.push(moment("2016-04-21"));
            feriados.push(moment("2016-05-01"));
            feriados.push(moment("2016-05-26"));
            feriados.push(moment("2016-09-07"));
            feriados.push(moment("2016-10-12"));
            feriados.push(moment("2016-11-02"));
            feriados.push(moment("2016-11-15"));
            feriados.push(moment("2016-12-25"));
            return feriados;
 } ();
function dateInArray(queryDate){
  return Boolean(feriados.filter(function(date){
     return date.isSame(queryDate);
  }).length);
  // return feriados.some(date => date.isSame(queryDate));
}
console.log(dateInArray(moment('2016-12-25')));
console.log(dateInArray(moment('2016-12-28')));

<script src="http://momentjs.com/downloads/moment.min.js"></script>

Problem

Original source

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