// Copyright 2018-2025 the Deno authors. MIT license.
// This module is browser compatible.
import type { SemVer } from "./types.ts";
import { compare } from "./compare.ts";
/**
* Less than comparison for two SemVers.
*
* This is equal to `compare(version1, version2) < 0`.
*
* @example Usage
* ```ts
* import { parse, lessThan } from "@std/semver";
* import { assert } from "@std/assert";
*
* const version1 = parse("1.2.3");
* const version2 = parse("1.2.4");
*
* assert(lessThan(version1, version2));
* assert(!lessThan(version2, version1));
* assert(!lessThan(version1, version1));
* ```
*
* @param version1 the first version to compare
* @param version2 the second version to compare
* @returns `true` if `version1` is less than `version2`, `false` otherwise
*/
export function lessThan(version1: SemVer, version2: SemVer): boolean {
return compare(version1, version2) < 0;
}
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