AI-Assisted shadcn Component Generation: 50+ Components in Minutes

// io.thecodeforge — JavaScript tutorial

# Initialize shadcn in your project
npx shadcn-ui@latest init

# Add a button component
npx shadcn-ui@latest add button

# Verify it works
import { Button } from "@/components/ui/button"

// Your AI prompt should include the component path and props
// Example prompt: "Generate a shadcn Button component with variant='destructive' and size='lg'"

// io.thecodeforge — JavaScript tutorial

Generate a shadcn Card component with the following:
- Props: title, description, children, className
- Variants: default, elevated, bordered
- Use forwardRef and cn() from @/lib/utils
- Default styling: rounded-lg border bg-card text-card-foreground shadow-sm
- Elevated variant: shadow-lg
- Bordered variant: border-2 border-primary

Output only the component code, no explanation.

// io.thecodeforge — JavaScript tutorial

const components = [
  { name: "Button", props: "variant, size, children, className" },
  { name: "Input", props: "type, placeholder, value, onChange" },
  { name: "Card", props: "title, description, children" },
  // ... 47 more
];

const prompt = `Generate shadcn components for each item. Use forwardRef and cn(). Output as:

// Component: Button
[code]

// Component: Input
[code]`;

// Send to AI and parse response
const response = await callAI(prompt);
const blocks = response.split('// Component:');
blocks.forEach(block => {
  const [name, ...codeLines] = block.trim().split('\n');
  const code = codeLines.join('\n');
  fs.writeFileSync(`./components/ui/${name.toLowerCase()}.tsx`, code);
});

// io.thecodeforge — JavaScript tutorial

// In your prompt, include:
// "Use these CSS variables: --primary: #3b82f6; --secondary: #8b5cf6; --background: #ffffff;"

// Generated component will use:
const Button = React.forwardRef(({ className, ...props }, ref) => (
  <button
    className={cn(
      "inline-flex items-center justify-center rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:opacity-50 disabled:pointer-events-none ring-offset-background",
      "bg-primary text-primary-foreground hover:bg-primary/90",
      className
    )}
    ref={ref}
    {...props}
  />
));

// io.thecodeforge — JavaScript tutorial

import { render, screen } from '@testing-library/react';
import { Button } from '@/components/ui/button';

describe('Button', () => {
  it('renders with text', () => {
    render(<Button>Click me</Button>);
    expect(screen.getByText('Click me')).toBeInTheDocument();
  });

  it('applies variant classes', () => {
    const { container } = render(<Button variant="destructive">Delete</Button>);
    expect(container.firstChild).toHaveClass('bg-destructive');
  });

  it('forwards ref', () => {
    const ref = React.createRef<HTMLButtonElement>();
    render(<Button ref={ref}>Ref</Button>);
    expect(ref.current).toBeInstanceOf(HTMLButtonElement);
  });
});

// io.thecodeforge — JavaScript tutorial

import * as React from "react";
import { cva, type VariantProps } from "class-variance-authority";
import { cn } from "@/lib/utils";

const buttonVariants = cva(
  "inline-flex items-center justify-center rounded-md text-sm font-medium transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 disabled:opacity-50 disabled:pointer-events-none ring-offset-background",
  {
    variants: {
      variant: {
        default: "bg-primary text-primary-foreground hover:bg-primary/90",
        destructive: "bg-destructive text-destructive-foreground hover:bg-destructive/90",
        outline: "border border-input hover:bg-accent hover:text-accent-foreground",
        secondary: "bg-secondary text-secondary-foreground hover:bg-secondary/80",
        ghost: "hover:bg-accent hover:text-accent-foreground",
        link: "underline-offset-4 hover:underline text-primary",
      },
      size: {
        default: "h-10 py-2 px-4",
        sm: "h-9 px-3 rounded-md",
        lg: "h-11 px-8 rounded-md",
        icon: "h-10 w-10",
      },
    },
    defaultVariants: {
      variant: "default",
      size: "default",
    },
  }
);

export interface ButtonProps
  extends React.ButtonHTMLAttributes<HTMLButtonElement>,
    VariantProps<typeof buttonVariants> {
  asChild?: boolean;
}

const Button = React.forwardRef<HTMLButtonElement, ButtonProps>(
  ({ className, variant, size, asChild = false, ...props }, ref) => {
    const Comp = asChild ? Slot : "button";
    return (
      <Comp
        className={cn(buttonVariants({ variant, size, className }))}
        ref={ref}
        {...props}
      />
    );
  }
);
Button.displayName = "Button";

export { Button, buttonVariants };

// io.thecodeforge — JavaScript tutorial

// Bad: AI-generated data table with sorting
// Often has stale closures and missing dependencies

// Good: Use shadcn's DataTable example with TanStack Table
// https://ui.shadcn.com/docs/components/data-table

import { DataTable } from "@/components/ui/data-table";
import { columns } from "./columns";

// This is battle-tested and handles sorting, filtering, pagination
<DataTable columns={columns} data={data} />