pull:初次提交

n8n-n8n-1.109.2/packages/nodes-base/nodes/Transform/utils/utils.ts

@@ -0,0 +1,17 @@
+import { ApplicationError } from '@n8n/errors';
+
+export const prepareFieldsArray = (fields: string | string[], fieldName = 'Fields') => {
+	if (typeof fields === 'string') {
+		return fields
+			.split(',')
+			.map((entry) => entry.trim())
+			.filter((entry) => entry !== '');
+	}
+	if (Array.isArray(fields)) {
+		return fields;
+	}
+	throw new ApplicationError(
+		`The \'${fieldName}\' parameter must be a string of fields separated by commas or an array of strings.`,
+		{ level: 'warning' },
+	);
+};