es2018

use es2018 some time ago，why use es2016 now？ @sodatea

tsconfig/tsconfig.web.json

Lines 5 to 9 in 26fc528

    
           // Should target at least ES2016 in Vue 3 
        
           // Support for newer versions of language built-ins are 
        
           // left for the users to include, because that would require: 
        
           //   - either the project doesn't need to support older versions of browsers; 
        
           //   - or the project has properly included the necessary polyfills.

It's explained in the comments.

3q

	// Should target at least ES2016 in Vue 3
	// Support for newer versions of language built-ins are
	// left for the users to include, because that would require:
	// - either the project doesn't need to support older versions of browsers;
	// - or the project has properly included the necessary polyfills.