41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
import { DateTime } from "luxon";
|
|
|
|
export default function(eleventyConfig) {
|
|
eleventyConfig.addFilter("readableDate", (dateObj, format, zone) => {
|
|
// Formatting tokens for Luxon: https://moment.github.io/luxon/#/formatting?id=table-of-tokens
|
|
return DateTime.fromJSDate(dateObj, { zone: zone || "utc" }).toFormat(format || "dd LLLL yyyy");
|
|
});
|
|
|
|
eleventyConfig.addFilter("htmlDateString", (dateObj) => {
|
|
// dateObj input: https://html.spec.whatwg.org/multipage/common-microsyntaxes.html#valid-date-string
|
|
return DateTime.fromJSDate(dateObj, {zone: 'utc'}).toFormat('yyyy-LL-dd');
|
|
});
|
|
|
|
// Get the first `n` elements of a collection.
|
|
eleventyConfig.addFilter("head", (array, n) => {
|
|
if(!Array.isArray(array) || array.length === 0) {
|
|
return [];
|
|
}
|
|
if( n < 0 ) {
|
|
return array.slice(n);
|
|
}
|
|
|
|
return array.slice(0, n);
|
|
});
|
|
|
|
// Return the smallest number argument
|
|
eleventyConfig.addFilter("min", (...numbers) => {
|
|
return Math.min.apply(null, numbers);
|
|
});
|
|
|
|
// Return the keys used in an object
|
|
eleventyConfig.addFilter("getKeys", target => {
|
|
return Object.keys(target);
|
|
});
|
|
|
|
eleventyConfig.addFilter("filterTagList", function filterTagList(tags) {
|
|
return (tags || []).filter(tag => ["all", "posts"].indexOf(tag) === -1);
|
|
});
|
|
|
|
};
|