Snippet for JavaScript regions. Place in your personal My Snippets folder (Documents/Visual Studio xxxx) or the global folder: \Program Files (x86)\Microsoft Visual Studio xx.x\JavaScript\Snippets\1033\JavaScript

gistfile1.xml

<CodeSnippet Format="1.1.0" xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnippet">
  <Header>
    <Title>region</Title>
    <Author>Ken Courville</Author>
    <Shortcut>try</Shortcut>
    <Description>Code snippet for a region statement</Description>
    <SnippetTypes>
      <SnippetType>Expansion</SnippetType>
      <SnippetType>SurroundsWith</SnippetType>
    </SnippetTypes>
  </Header>
  <Snippet>
    <Declarations>
      <Literal>
        <ID>name</ID>
        <ToolTip>Region Name</ToolTip>
        <Default>MyRegion</Default>
      </Literal>
    </Declarations>
    <Code Language="JavaScript"><![CDATA[//#region $name$
    $selected$
  //#endregion
]]></Code>
  </Snippet>
</CodeSnippet>

please change the try shortcut to region