pre-load wfo point info for regional and travel cities

datagenerators/chunk.js

@@ -0,0 +1,22 @@
+// turn a long array into a set of smaller chunks
+
+const chunk = (data, chunkSize = 10) => {
+	const chunks = [];
+
+	let thisChunk = [];
+
+	data.forEach((d) => {
+		if (thisChunk.length >= chunkSize) {
+			chunks.push(thisChunk);
+			thisChunk = [];
+		}
+		thisChunk.push(d);
+	});
+
+	// final chunk
+	if (thisChunk.length > 0) chunks.push(thisChunk);
+
+	return chunks;
+};
+
+module.exports = chunk;