react-native-nepali-picker
Version:
Minimalist and modern Nepali-date picker with customization.🌟
35 lines (34 loc) • 1.01 kB
JavaScript
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import { bs, leapYears } from "./config.js";
const calcFirstDay = (currentYear, currentMonth) => {
let month = currentMonth;
let year = currentYear;
const diff = year - 2000;
let leapYear = 0;
let firstDay;
for (let l = 0; l < leapYears.length; l++) {
if (year > leapYears[l]) {
leapYear++;
}
}
// if (year > 2096) {
// leapYear--;
// }
//calculate number of days since the first refernce year i.e 2081
let td = 3 + diff * 365 + leapYear;
if (month - 1 > 0) {
for (let i = 1; i < month; i++) {
td += bs[year][i];
}
firstDay = td % 7;
} else {
firstDay = td % 7;
}
td = 0;
return firstDay;
};
const isToday = (date, index, currentYear, currentMonth, firstDayOfMonth) => {
return parseInt(date.split('-')[2], 10) - 1 + firstDayOfMonth === index && currentMonth === parseInt(date.slice(5, 7), 10) && currentYear === parseInt(date.slice(0, 4), 10);
};
export { calcFirstDay, isToday };
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