check

Validation utilities for version comparison and other checks.

Functions

Function	Description	Example
version	Compare two version strings	dphelper.check.version('1.2.0', '1.1.0')

Description

Version comparison utilities:

• Semantic Versioning - Compare version numbers

• Custom Options - Lexicographic and zero-pad support

Usage Examples

Version Comparison

// Compare versions
console.log(dphelper.check.version('1.2.0', '1.1.0'));  // 1 (v1 > v2)
console.log(dphelper.check.version('1.1.0', '1.2.0'));  // -1 (v1 < v2)
console.log(dphelper.check.version('1.0.0', '1.0.0'));  // 0 (equal)

// With zero padding
console.log(dphelper.check.version('1.2', '1.2.0', { zero: true })); // 0

// With lexicographic comparison
console.log(dphelper.check.version('1.0.0a', '1.0.0b', { lex: true })); // -1

Software Update Checker

function checkForUpdate(currentVersion, latestVersion) {
  const result = dphelper.check.version(currentVersion, latestVersion);

  if (result === 1) {
    console.log('Update available!');
    return 'Update available';
  } else if (result === 0) {
    console.log('You have the latest version.');
    return 'Up to date';
  } else {
    console.log('You are on a newer version.');
    return 'Ahead';
  }
}

checkForUpdate('1.0.0', '1.1.0'); // "Update available!"

Details

• Author: Dario Passariello

• Version: 0.0.2

• Creation Date: 20240829

• Last Modified: 20240829

• Environment: Works in both client and server environments

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