版本号

Version.ts

const regexVersion = /(\d+)\.(\d+)(\.(\d+))?(-([0-9A-Za-z]+))?(\+([0-9A-Za-z]+))?/;

class Version {
  major: number = 0;
  minor: number = 0;
  patch?: number;
  preRelease?: string;
  build?: string;

  constructor(
    major: number, 
    minor: number, 
    patch?: number, 
    preRelease?: string, 
    build?: string
  ) {
    this.major = major;
    this.minor = minor;
    this.patch = patch;
    this.preRelease = preRelease;
    this.build = build;
  }

  get value(): number {
    let value = 0;
    value += this.major * 100000;
    value += this.minor * 1000;
    if (this.patch != undefined) value += this.patch * 10;
    if (this.preRelease == undefined) value += 1;
    return value;
  }

  toString(): string {
    let version = `${this.major}.${this.minor}`;
    if (this.patch != undefined) version += `.${this.patch}`;
    if (this.preRelease != undefined) version += `-${this.preRelease}`;
    if (this.build != undefined) version += `+${this.build}`;
    return version;
  }
}

const vs = regexVersion.exec("1.20.1-Snapshot");
if (vs != null) {
  const version = new Version(
    Number(vs[1]), 
    Number(vs[2]), 
    vs[4] != undefined ? Number(vs[4]) : undefined, 
    vs[6], 
    vs[8]
  );
  console.log(version.value);
}