timestamp.ts

Overview

The timestamp.ts file provides a simple utility for generating unique incremental timestamps within the runtime of an application. It maintains a global counter that increments each time a timestamp is requested, ensuring that each call to getTimestamp() returns a unique, monotonically increasing numeric value.

This utility is useful in scenarios where you need to assign unique, ever-increasing identifiers or keys that reflect the order of creation or occurrence without relying on external time sources or complex date/time calculations.

Detailed Explanation

Variables

__timestamp: number

• Scope: Private global variable within the module.

• Purpose: Holds the current timestamp count.

• Initial value: 0

• Behavior: Incremented by 1 each time getTimestamp() is called.

This variable is not exported, which encapsulates the state internally, preventing external modification and ensuring controlled timestamp generation.

Functions

getTimestamp(): number

• Description: Returns a unique, incremented timestamp.

• Parameters: None

• Returns: A number representing the next timestamp.

• Behavior: Each invocation increments the internal __timestamp by 1 and returns the new value.

• Usage Example:

import { getTimestamp } from './timestamp';

console.log(getTimestamp()); // Outputs: 1
console.log(getTimestamp()); // Outputs: 2
// Each call returns a unique increasing number

• Notes: Since the counter starts at 0 and increments before returning, the first timestamp returned is 1.

Implementation Details & Algorithm

• The file uses a simple incrementing counter stored in a module-scoped variable.

• The getTimestamp() function uses the prefix increment operator ++ to increment the counter before returning it.

• This approach guarantees uniqueness and monotonicity within the runtime session.

• The timestamps are purely numeric and abstract — they do not reflect real-world time or dates.

• This simple counter is efficient with O(1) time complexity per call.

• Since the counter is a single numeric primitive, it has minimal memory overhead.

Interaction With Other Parts of the System

• This module acts as a utility and can be imported wherever unique incremental identifiers are needed.

• It can be used in business logic layers for ordering events, generating IDs for transient objects, or sequencing asynchronous operations.

• The simplicity of this module makes it suitable for internal tracking, logging, or caching mechanisms.

• Does not depend on external libraries or APIs.

• Because it maintains state internally, it is important to note that the timestamps reset if the application or environment restarts.

Visual Diagram

flowchart TD
    A[__timestamp: number (initial 0)]
    B[getTimestamp() function]

    A -->|++__timestamp| B
    B -->|return incremented number| C[Caller receives unique timestamp]

Summary

timestamp.ts is a minimalistic utility module designed to generate unique, incrementing numeric timestamps via a simple counter mechanism. It encapsulates state internally, exposing only the getTimestamp() function. This approach provides an efficient and reliable way to obtain unique identifiers during runtime without external dependencies or complexity. The module fits well in modular applications requiring simple ordering or uniqueness guarantees for in-memory operations.