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_config/filters.js

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+export default function(eleventyConfig) {
+	// Return the keys used in an object
+	eleventyConfig.addFilter("getKeys", target => {
+		return Object.keys(target);
+	});
+
+	/* */
+	eleventyConfig.addFilter("getTagline", tag => {
+		let tagline;
+		switch (tag) {
+			case "animals and the outdoors":
+				tagline = "grass touchin'";
+				break;
+			case "art and crafts":
+				/* tagline = */
+				break;
+			case "food and drink":
+				tagline = "good eatin'";
+				break;
+			case "history and science":
+				/* tagline = */
+				break;
+			case "home improvement and diy":
+				tagline = "fixin' stuff";
+				break;
+			case "interpersonal and life":
+				/* tagline = */
+				break;
+			case "technology":
+				tagline = "computer touchin'";
+				break;
+			case "writing, editing, and literature":
+				/* tagline = */
+				break;
+		};
+		return tagline;
+	});
+
+	/* Filter out structural tags */
+	eleventyConfig.addFilter("removeCoreTags", (tags) => {
+		return tags.filter(tag => ["all"].indexOf(tag) === -1);
+	});
+
+	/* What it says on the tin */
+	eleventyConfig.addFilter("sortAlphabetically", strings =>
+		(strings || []).sort((b, a) => b.localeCompare(a))
+	);
+};