[Solved] How to get week number from date input in javascript? [duplicate]

by 


function getWeekNumber(thisDate) {
var dt = new Date(thisDate);
var thisDay = dt.getDate();

var newDate = dt;
newDate.setDate(1); // first day of month
var digit = newDate.getDay();

var Q = (thisDay + digit) / 7;

var R = (thisDay + digit) % 7;

if (R !== 0) return Math.ceil(Q);
else return Q;}

getWeekNumber(“07/31/2016”);

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solved How to get week number from date input in javascript? [duplicate]