comment-ext.js

class CommentDemo {

  constructor() {}

  getInfo() {
    return {
      id: 'commentdemo',
      name: 'Comment demo',

      colour: '#607D8B',
      colourSecondary: '#455A64',
      colourTertiary: '#263238',

      blocks: [
        {
          opcode: 'commentBlock',

          blockType: Scratch.BlockType.COMMAND,

          text: 'comment: [A]',
          arguments: {
            A: {
              type: Scratch.ArgumentType.STRING,
              defaultValue: 'Comment text here'
            }
          }
        },
        {
          opcode: 'commentC',

          blockType: Scratch.BlockType.CONDITIONAL,

          text: 'comment: [A]',
          arguments: {
            A: {
              type: Scratch.ArgumentType.STRING,
              defaultValue: 'Comment text here'
            }
          }
        }
      ]
    }
  }

  commentBlock({A}) {
    return;
  }

  commentC({A}) {
    return;
  }

}

Scratch.extensions.register(new CommentDemo());