Fast Apply

Fast Apply is a powerful feature that allows you to quickly apply AI-generated code changes to your files with minimal effort. It streamlines the process of incorporating AI suggestions into your codebase.

How does Fast Apply work?

Fast Apply analyzes the AI-generated code suggestions and automatically applies them to the appropriate locations in your files. It uses intelligent matching to:

• Identify the correct insertion points
• Handle code formatting and indentation
• Resolve potential conflicts
• Maintain code structure and syntax

Prerequisites

• VS Code version 1.93 or later
• Trae Plugin installed and activated
• An active project with code files

Using Fast Apply

Basic Usage

1. Generate AI suggestions: Use any of Trae's AI capabilities to generate code suggestions
2. Review suggestions: The AI will present code changes with Fast Apply options
3. Apply changes: Click the Fast Apply button to automatically apply the changes
4. Verify results: Review the applied changes in your editor

Fast Apply Options

Apply All: Applies all suggested changes across multiple files at once.

Apply Selected: Allows you to choose specific changes to apply while ignoring others.

Preview Changes: Shows a diff view of what will be changed before applying.

Undo Changes: Reverts the last Fast Apply operation if needed.

Smart Conflict Resolution

When Fast Apply encounters potential conflicts, it will:

1. Highlight conflicts: Show areas where changes might conflict with existing code
2. Suggest resolutions: Provide options for resolving conflicts
3. Allow manual review: Let you manually resolve complex conflicts
4. Preserve existing code: Ensure your existing code isn't accidentally overwritten

Supported Operations

Fast Apply supports various types of code changes:

Code Generation

• Function implementations
• Class definitions
• Variable declarations
• Import statements

Code Modifications

• Refactoring existing functions
• Adding new methods to classes
• Updating variable assignments
• Modifying configuration files

Code Formatting

• Automatic indentation correction
• Code style consistency
• Syntax formatting

Best Practices

1. Review before applying: Always review AI suggestions before using Fast Apply
2. Use version control: Commit your changes before applying large modifications
3. Test after applying: Run tests to ensure applied changes work correctly
4. Start small: Begin with small changes to understand how Fast Apply works

Configuration

You can customize Fast Apply behavior in VS Code settings:

1. Open VS Code settings (Ctrl+, on Windows/Linux, Cmd+, on macOS)
2. Search for "Trae Fast Apply"
3. Configure options such as:
   • Auto-apply threshold
   • Conflict resolution behavior
   • Backup creation settings
   • Formatting preferences

Keyboard Shortcuts

• Apply suggestion: Ctrl+Enter (Windows/Linux), Cmd+Enter (macOS)
• Preview changes: Ctrl+Shift+P (Windows/Linux), Cmd+Shift+P (macOS)
• Undo last apply: Ctrl+Z (Windows/Linux), Cmd+Z (macOS)

Safety Features

Fast Apply includes several safety features to protect your code:

• Automatic backups: Creates backups before applying changes
• Undo functionality: Allows you to revert changes if needed
• Conflict detection: Identifies potential issues before applying
• Syntax validation: Ensures applied code maintains valid syntax

Troubleshooting

If Fast Apply isn't working as expected:

1. Check file permissions: Ensure files are writable
2. Verify syntax: Make sure the target file has valid syntax
3. Review conflicts: Check for merge conflicts or overlapping changes
4. Restart VS Code: Sometimes a restart resolves temporary issues

For additional support, refer to the Support documentation or FAQs.