constant.ts

Overview

The constant.ts file defines and exports an enumeration named ChunkTextMode. This enum is intended to represent different modes related to handling or displaying chunked text content within the application. Specifically, it distinguishes between showing the full text chunk or a truncated version indicated by an ellipse (...).

This file serves as a central place to standardize the text chunk display modes, ensuring consistency across various components or services that deal with chunked text processing or rendering.

Enum: ChunkTextMode

Description

ChunkTextMode is an enumeration that provides two distinct modes for managing text chunks:

• Full: Indicates that the entire text chunk should be used or displayed.

• Ellipse: Indicates that the text chunk should be truncated, typically ending with an ellipsis (...), to represent omitted content.

Members

Usage Example

import { ChunkTextMode } from './constant';

function displayTextChunk(text: string, mode: ChunkTextMode): string {
  switch(mode) {
    case ChunkTextMode.Full:
      return text; // Return full text
    case ChunkTextMode.Ellipse:
      return text.length > 100 ? text.substring(0, 97) + '...' : text; // Truncate with ellipsis
    default:
      return text;
  }
}

// Example calls
console.log(displayTextChunk("This is a long text chunk that might need truncation.", ChunkTextMode.Ellipse));
console.log(displayTextChunk("Short text.", ChunkTextMode.Full));

Implementation Details

• The ChunkTextMode enum is a simple string enum, which provides clear, readable string constants rather than numeric values.

• Using string enums improves debugging and log readability since the values reflect their semantic meaning.

• This enum can be easily extended in the future to include other modes of text chunk display if needed.

Interaction with Other Parts of the System

• This file is designed as a utility or constants module within the application.

• Other components, services, or utilities that deal with text processing, formatting, or rendering will import ChunkTextMode to decide how to handle chunked text.

• For example, UI components rendering text previews might use ChunkTextMode.Ellipse to show truncated text, whereas full text viewers might use ChunkTextMode.Full.

• Because this file only exports an enum, it has no dependencies on other files and serves as a foundational constant definition used throughout the system.

Diagram: Enum Structure for ChunkTextMode

classDiagram
    class ChunkTextMode {
        <<enumeration>>
        +Full: 'full'
        +Ellipse: 'ellipse'
    }

Summary

constant.ts is a minimal yet crucial file that defines the ChunkTextMode enum, providing standardized modes for text chunk display. Its simplicity and clarity promote consistent usage of text display modes across the application, aiding maintainability and readability.