date - moment.js, how to get day of week number

Question

I have a moment date object, and want to get the selected day number (0-6) or (1-7).

I tried this, but it doesn't work

var aaa = moment(date).day();

help me with this please

Answer 1

Define "doesn't work".

const date = moment("2015-07-02"); // Thursday Feb 2015
const dow = date.day();
console.log(dow);

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