41 lines
1.2 KiB
JavaScript
41 lines
1.2 KiB
JavaScript
import { DateTime } from "luxon";
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export default function (eleventyConfig) {
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/* Create a single alt string from a multi-string alt object */
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eleventyConfig.addFilter("createAlt", (altObject) => {
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let alt;
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if (altObject.length > 1)
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alt = `a ${altObject.length} picture collage.`;
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for (let i = 0; i < altObject.length; i++)
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alt += ` Image ${i + 1} is ${altObject[i]}`;
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return alt;
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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]] = [shuffledArray[j], shuffledArray[i]];
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}
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return shuffledArray;
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});
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/* Sort alphabetically by item title */
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eleventyConfig.addFilter("sortAlphabeticallyByTitle", collection => {
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collection.sort((b, a) => b.data.title.localeCompare(a.data.title));
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return collection;
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});
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};
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