Some people installed vs2015 after the discovery actually does not support the javascrpt of the highlighting function, even tools-options-text editor inside the JavaScript also did not have, landlord also encountered such a situation, it is estimated that there are multiple versions of the reason, the landlord computer installed VS2012, VS2013, VS2015 Preview version, and then uninstalled VS2015 Preview and VS2012 installed VS2015 CTP6, found that actually does not support JavaScript, repair and unloading load is not possible, so a variety of Google search, finally found a solution, To post it for other needy comrades to refer to:
Solution:
Suppose VS2015 is installed in D:\Program file\vs2015
can go to C drive under C:\Program files (x86) \microsoft Visual Studio 14.0 Copy all the files and folders in addition to Common7 to D:\Program file\vs2015
Open Developer Command Prompt for VS2015 as an administrator
Enter the following command:
Devenv/setup//Here may need to wait for a moment
Devenv.exe/installvstemplates
When you're done, reopen the VS2015.
VS2015 does not support smart hints highlighting for JavaScript