d3/src/time/day.js at master · blehman/d3

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import "interval";

import "time";

import "year";

d3_time.day = d3_time_interval(function(date) {

var day = new d3_date(2000, 0);

day.setFullYear(date.getFullYear(), date.getMonth(), date.getDate());

return day;

}, function(date, offset) {

date.setDate(date.getDate() + offset);

}, function(date) {

return date.getDate() - 1;

});

d3_time.days = d3_time.day.range;

d3_time.days.utc = d3_time.day.utc.range;

d3_time.dayOfYear = function(date) {

var year = d3_time.year(date);

return Math.floor((date - year - (date.getTimezoneOffset() - year.getTimezoneOffset()) * 6e4) / 864e5);

};