generated from inherentlee/11ty
60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
import { DateTime } from "luxon";
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export default function (eleventyConfig) {
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/* Return the keys used in an object */
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eleventyConfig.addFilter("getKeys", (target) => {
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return Object.keys(target);
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});
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/* Return n elements from a list */
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eleventyConfig.addFilter("head", (collection = [], n) => {
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if (!Array.isArray(collection) || collection.length === 0) {
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return [];
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}
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if (n < 0) {
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return collection.slice(n);
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}
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return collection.slice(0, n);
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});
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/* For <time> elements */
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eleventyConfig.addFilter("htmlDateString", (dateObj) => {
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return DateTime.fromJSDate(dateObj, { zone: "utc" }).toFormat("yyyy-LL-dd");
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});
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/* What it says on the tin */
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eleventyConfig.addFilter("randomize", function (array) {
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// Create a copy of the array to avoid modifying the original
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let shuffledArray = array.slice();
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// Fisher-Yates shuffle algorithm
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for (let i = shuffledArray.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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[shuffledArray[i], shuffledArray[j]] = [
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shuffledArray[j],
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shuffledArray[i],
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];
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}
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return shuffledArray;
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});
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/* Human-readable dates */
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eleventyConfig.addFilter("readableDate", (dateObj, zone) => {
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return DateTime.fromJSDate(dateObj, { zone: zone || "utc" }).toLocaleString(
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DateTime.DATE_FULL,
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);
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});
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/* Filter out structural tags */
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eleventyConfig.addFilter("removeBasicTags", (tags) => {
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return tags.filter((tag) => ["all"].indexOf(tag) === -1);
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});
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/* What it says on the tin */
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eleventyConfig.addFilter("sortAlphabetically", (strings) =>
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(strings || []).sort((b, a) => b.localeCompare(a)),
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);
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}
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