add previously uncommited utils.ts file

packages/lucide-astro/src/utils.ts

@@ -0,0 +1,28 @@
+/**
+ * Converts string to kebab case
+ *
+ * @param {string} string
+ * @returns {string} A kebabized string
+ */
+export const toKebabCase = (string: string) =>
+  string.replace(/([a-z0-9])([A-Z])/g, "$1-$2").toLowerCase();
+
+/**
+ * Merges classes into a single string
+ *
+ * @param {array} classes
+ * @returns {string} A string of classes
+ */
+export const mergeClasses = <ClassType = string | undefined | null>(
+  ...classes: ClassType[]
+) =>
+  classes
+    .filter((className, index, array) => {
+      return (
+        Boolean(className) &&
+        (className as string).trim() !== "" &&
+        array.indexOf(className) === index
+      );
+    })
+    .join(" ")
+    .trim();