ES6 / ES7 support in Visual Studio 2015 Community

visual-studio-2015 ecmascript-6 aurelia ecmascript-7
Marek M. picture Marek M. · Jul 21, 2015 · Viewed 29.9k times · Source

I'm hearing that VS 2015 is supporting the new js syntax but when I open up a project written using aurelia.js in this IDE intellisense complains about many, many things eg.

export class UpperValueConverter {
  toView(value){
    return value && value.toUpperCase();
  }
}

I have the WebEssentials 2015 installed. Still nothing seems to work... Probably an important information is that my current VS installation is a fresh one, so I didn't mess up any settings.

Answer

user7085375 picture user7085375 · Oct 28, 2016

Javascript is a language. ES6 is a version of Javascript. Microsoft has not supplied a intellisense mapping file for it. The suggestions on this post suggest using javascript frameworks/APIs which do provide intellisense mapping files. These suggestions do not answer the question on how to stop getting intellisense errors for new Javascript versions. Unless someone creates that mapping file and provides a URL for us to reference from Visual Studio/tools/Javascript/Intellisence/references you will get syntax errors writing straight ES6 Javascript.

Related questions

Visual Studio 2015 JSX/ES2015 syntax highlighting

How can I get a proper syntax highlighting in Visual Studio 2015 for JSX with ES2015 code? It works fine if I remove the import and export keywords: I just updated to Visual Studio 2015 Enterprise Update 1 but it still remains the …

Read More
How to download Visual Studio Community Edition 2015 (not 2017)

I have a Resharper 9x license and it is only compatible up to MS VS Community 2015 edition. I tried to download the 2015 version from Microsoft but their website stubbornly wants me to have 2017, only. Can someone please provide me a …

Read More
How do I enable NuGet Package Restore in Visual Studio?

There's a similar post on stack but it doesn't help with my issue possibly because I am using Visual Studio 2015. How do I get the "Enable NuGet Package Restore" option to appear in VS2015? I chose File > New Project …

Read More