Method addCommands

www/js/_hyperscript.js:1565–1576

(...commandClasses)

      this.#commands[keyword] = definition;
    }
    addCommands(...commandClasses) {
      for (const CommandClass of commandClasses) {
        if (!CommandClass.keyword) {
          throw new Error(`Command class ${CommandClass.name} must have a static 'keyword' property`);
        }
        if (!CommandClass.parse) {
          throw new Error(`Command class ${CommandClass.name} must have a static 'parse' method`);
        }
        var keywords = Array.isArray(CommandClass.keyword) ? CommandClass.keyword : [CommandClass.keyword];
        for (var kw of keywords) this.addCommand(kw, CommandClass.parse);
      }
    }
    addFeatures(...featureClasses) {
      for (const FeatureClass of featureClasses) {
        if (!FeatureClass.keyword) {