feat: Better error when calling expression function on input that is undefined or null (#10009)

packages/nodes-base/nodes/Switch/V3/SwitchV3.node.ts

@@ -12,6 +12,7 @@ import type {
 import { NodeConnectionType, NodeOperationError } from 'n8n-workflow';
 import set from 'lodash/set';
 import { capitalize } from '@utils/utilities';
+import { ENABLE_LESS_STRICT_TYPE_VALIDATION } from '../../../utils/constants';
 
 const configuredOutputs = (parameters: INodeParameters) => {
 	const mode = parameters.mode as string;
@@ -348,9 +349,8 @@ export class SwitchV3 implements INodeType {
 								},
 							) as boolean;
 						} catch (error) {
-							if (!options.looseTypeValidation) {
-								error.description =
-									"Try changing the type of comparison. Alternatively you can enable 'Less Strict Type Validation' in the options.";
+							if (!options.looseTypeValidation && !error.description) {
+								error.description = ENABLE_LESS_STRICT_TYPE_VALIDATION;
 							}
 							set(error, 'context.itemIndex', itemIndex);
 							set(error, 'node', this.getNode());