fix: simplify lwc language default handling

Only set lwcLanguage when the flag is provided.
Remove redundant default template reassignment logic.

Made-with: Cursor

Author: Shubham Goyal

src/commands/template/generate/lightning/component.ts

@@ -70,10 +70,8 @@ export default class LightningComponent extends SfCommand<CreateOutput> {
 
         if (defaultLwcLanguage === 'typescript') {
           template = 'typeScript';
-        } else if (defaultLwcLanguage === 'javascript') {
-          template = 'default'; // Explicit JavaScript template
         }
-        // If defaultLwcLanguage is undefined or other value, template remains 'default'
+        // If defaultLwcLanguage is undefined or non-typescript, template remains default.
       } catch (error) {
         // Not in a project context or project config not available, use default
         this.debug('Could not resolve project config for intelligent defaulting:', error);

src/commands/template/generate/project/index.ts

@@ -67,7 +67,6 @@ export default class Project extends SfCommand<CreateOutput> {
       summary: messages.getMessage('flags.lwc-language.summary'),
       description: messages.getMessage('flags.lwc-language.description'),
       options: ['javascript', 'typescript'] as const,
-      default: 'javascript',
     })(),
     loglevel,
     'api-version': Flags.orgApiVersion({
@@ -77,9 +76,6 @@ export default class Project extends SfCommand<CreateOutput> {
   public async run(): Promise<CreateOutput> {
     const { flags } = await this.parse(Project);
 
-    // Only include lwcLanguage if user explicitly provided the flag
-    const userProvidedLwcLanguage = this.argv.includes('--lwc-language');
-
     const flagsAsOptions: ProjectOptions = {
       projectname: flags.name,
       outputdir: flags['output-dir'],
@@ -90,8 +86,11 @@ export default class Project extends SfCommand<CreateOutput> {
       ns: flags.namespace,
       defaultpackagedir: flags['default-package-dir'],
       apiversion: flags['api-version'],
-      ...(userProvidedLwcLanguage && { lwcLanguage: flags['lwc-language'] }),
     };
+    if (flags['lwc-language']) {
+      flagsAsOptions.lwcLanguage = flags['lwc-language'];
+    }
+
     return runGenerator({
       templateType: TemplateType.Project,
       opts: flagsAsOptions,