ansu_ui/lib/extension/list_extension.dart

import 'package:flutter/material.dart';
import 'package:ansu_ui/extension/num_extension.dart';

extension SeparateExt on List<Widget> {
  List<Widget> sepWidget({Widget? separate}) {
    if (this.isEmpty) return [];
    return List.generate(this.length * 2 - 1, (index) {
      if (index.isEven)
        return this[index ~/ 2];
      else
        return separate ?? 10.wb;
    });
  }
}