50 lines
1.4 KiB
JavaScript
50 lines
1.4 KiB
JavaScript
import {timeInterval} from "./interval.js";
|
|
|
|
export const timeYear = timeInterval((date) => {
|
|
date.setMonth(0, 1);
|
|
date.setHours(0, 0, 0, 0);
|
|
}, (date, step) => {
|
|
date.setFullYear(date.getFullYear() + step);
|
|
}, (start, end) => {
|
|
return end.getFullYear() - start.getFullYear();
|
|
}, (date) => {
|
|
return date.getFullYear();
|
|
});
|
|
|
|
// An optimized implementation for this simple case.
|
|
timeYear.every = (k) => {
|
|
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : timeInterval((date) => {
|
|
date.setFullYear(Math.floor(date.getFullYear() / k) * k);
|
|
date.setMonth(0, 1);
|
|
date.setHours(0, 0, 0, 0);
|
|
}, (date, step) => {
|
|
date.setFullYear(date.getFullYear() + step * k);
|
|
});
|
|
};
|
|
|
|
export const timeYears = timeYear.range;
|
|
|
|
export const utcYear = timeInterval((date) => {
|
|
date.setUTCMonth(0, 1);
|
|
date.setUTCHours(0, 0, 0, 0);
|
|
}, (date, step) => {
|
|
date.setUTCFullYear(date.getUTCFullYear() + step);
|
|
}, (start, end) => {
|
|
return end.getUTCFullYear() - start.getUTCFullYear();
|
|
}, (date) => {
|
|
return date.getUTCFullYear();
|
|
});
|
|
|
|
// An optimized implementation for this simple case.
|
|
utcYear.every = (k) => {
|
|
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : timeInterval((date) => {
|
|
date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);
|
|
date.setUTCMonth(0, 1);
|
|
date.setUTCHours(0, 0, 0, 0);
|
|
}, (date, step) => {
|
|
date.setUTCFullYear(date.getUTCFullYear() + step * k);
|
|
});
|
|
};
|
|
|
|
export const utcYears = utcYear.range;
|