Problem while referencing javascript variables

Question

I am facing a problem here where after assigning a date to the variable newRecurrDate when I change the value of newRecurrDate the value of date is also changed and I get value in variable time as zero. I understand that newRecurrDate is referring to date address and hence I face problems. How to copy the value so that I won't face any issue?

      getDaysFromGivenMonth : function (date, months) {
        var newRecurrDate = date;
        newRecurrDate.add(months, 'months');  // NO I18N
        var time = newRecurrDate - moment(date);

Try using var newRecurrDate=Object.assign({},date)

Sumanth Itha
– Sumanth Itha

2020-07-14 05:10:21 +00:00
Commented Jul 14, 2020 at 5:10 — Sumanth Itha
– Sumanth Itha, Commented Jul 14, 2020 at 5:10
Does this answer your question? How to clone a Date object?

mgm793
– mgm793

2020-07-14 05:10:23 +00:00
Commented Jul 14, 2020 at 5:10 — mgm793
– mgm793, Commented Jul 14, 2020 at 5:10
Does my answer help?

Unmitigated
– Unmitigated

2020-07-14 15:23:15 +00:00
Commented Jul 14, 2020 at 15:23 — Unmitigated
– Unmitigated, Commented Jul 14, 2020 at 15:23
@mgm793 yus it does helped

saveeth kumar
– saveeth kumar

2020-07-19 07:45:36 +00:00
Commented Jul 19, 2020 at 7:45 — saveeth kumar
– saveeth kumar, Commented Jul 19, 2020 at 7:45

Unmitigated · Accepted Answer · 2020-07-14 05:07:36Z

1

Use moment.clone to create a copy of a moment object.

var newRecurrDate = date.clone();

answered Jul 14, 2020 at 5:07

Unmitigated

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ebiondi · Accepted Answer · 2020-07-14 05:27:10Z

1

Substitute

var newRecurrDate = date;

by

var newRecurrDate = new Date(date.getTime());

This creates a own date object instead of another reference to the same date object.

answered Jul 14, 2020 at 5:27

ebiondi

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