added comments for the usgae of field id

micro-ui/web/micro-ui-internals/packages/libraries/src/utils/field.js

@@ -1,37 +1,68 @@
+/* 
+ * Utility function to generate a unique field identifier or name for form fields.
+ * It combines a screen-specific prefix, a unique field name, and/or an identifier.
+ * 
+ * @author jagankumar-egov
+ *
+ *
+ * @example
+ * 
+ * Usage: Digit.Utils.getFieldIdName(fieldName = "", fieldId = "TO_OVERRIDE_ID_WITHTHIS_VALUE", screenPrefix = "TO_OVERRIDE_PREFIX_WITHTHIS_VALUE")
+*/
 export const getFieldIdName = (fieldName = "", fieldId = "", screenPrefix = "") => {
-    fieldName = fieldName ? fieldName : generateUniqueString(10);
-    return fieldId
-      ? fieldId
-      : sanitizeToHtmlId(`${getScreenPrefix(screenPrefix)}-${filedName}`);
-  };
-  const getScreenPrefix = (prefix = "") => {
-    const screenPaths = window.location.pathname.split("/");
-    return prefix
-      ? prefix
-      : `${
-          screenPaths?.[screenPaths?.length - 2] -
-          screenPaths?.[screenPaths?.length - 1]
-        }`;
-  };
-  const generateUniqueString = (length = 10) => {
-    const characters =
-      "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
-    let result = "";
-    for (let i = 0; i < length; i++) {
-      result += characters.charAt(Math.floor(Math.random() * characters.length));
-    }
-    return result;
-  };
-
-  const sanitizeToHtmlId = (input) => {
-    if (!input) return "id"; // Default to 'id' if input is empty or invalid
-
-    // 1. Convert to lowercase
-    // 2. Replace invalid characters (anything other than letters, numbers, hyphens, and underscores)
-    // 3. Replace spaces or consecutive invalid characters with a single hyphen
-    return input
-      .toLowerCase()
-      .replace(/[^a-z0-9-_]+/g, "-") // Replace invalid characters with hyphens
-      .replace(/^-+|-+$/g, ""); // Trim leading/trailing hyphens
-  };
-
+  // Generate a unique field name if none is provided
+  fieldName = fieldName ? fieldName : generateUniqueString(10);
+
+  // Use the provided fieldId if available, otherwise generate a sanitized HTML ID
+  return fieldId
+    ? fieldId
+    : sanitizeToHtmlId(`${getScreenPrefix(screenPrefix)}-${fieldName}`);
+};
+
+/*
+  Helper function to derive a screen-specific prefix from the current URL path.
+  If a custom prefix is provided, it is used directly; otherwise, the prefix is generated
+  by concatenating the last two segments of the URL path (e.g., "/parent/child").
+*/
+const getScreenPrefix = (prefix = "") => {
+  const screenPaths = window.location.pathname.split("/");
+
+  return prefix
+    ? prefix
+    : `${
+        screenPaths?.[screenPaths?.length - 2] -
+        screenPaths?.[screenPaths?.length - 1]
+      }`;
+};
+
+/*
+  Helper function to generate a random unique string of a given length.
+  Default length is 10. The string includes alphanumeric characters.
+*/
+const generateUniqueString = (length = 10) => {
+  const characters =
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+  let result = "";
+
+  for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() * characters.length));
+  }
+
+  return result;
+};
+
+/*
+  Sanitizes a string to be used as a valid HTML ID:
+  1. Converts the string to lowercase.
+  2. Replaces invalid characters (anything other than letters, numbers, hyphens, and underscores) with hyphens.
+  3. Trims leading or trailing hyphens.
+  4. If the input is empty or invalid, defaults to "id".
+*/
+const sanitizeToHtmlId = (input) => {
+  if (!input) return "id"; // Default to 'id' if input is empty or invalid
+
+  return input
+    .toLowerCase()
+    .replace(/[^a-z0-9-_]+/g, "-") // Replace invalid characters with hyphens
+    .replace(/^-+|-+$/g, ""); // Trim leading/trailing hyphens
+};