convert typescript to js online

1public getValue(): string {
2    return this.inputNode.value;
3  }
4
5  public get inputNode(): HTMLSelectElement {
6    return this.node.getElementsByTagName("select")[1];
7  }
8}

11. Add tsconfig.json file to project
22. Integrate with a build tool
33. Change all .js files to .ts files
44. Check for any errors