TypeScript Version: 2.1.0-dev.20160803

Trying to migrate medium size js project to ts so I am using allowJs: true in tsconfig.json and have mix of ts (10%) and js (90%) files already

Unfortunately compilation time with allowJs:true is 23 seconds while with allowJs:false is 3 seconds.

Problem seems to be that all js files follow the node_modules ("moduleResolution": "node" in tsconfig.json)

Is there any way to have moduleResolution:classic for JS part while node for TS or some other way to configure the project so that js files are not so deeply analyzed.

Here are the stats:

with allowJs:true

time tsc -p . --traceResolution | wc -l
  154171
tsc -p . --traceResolution  23.37s

time tsc -p . --traceResolution | grep node_modules | wc -l
  148740
tsc -p . --traceResolution  23.41s

with allowJs:false

time tsc -p . --traceResolution | wc -l
  1498
tsc -p . --traceResolution  3.03s

time tsc -p . --traceResolution | grep node_modules | wc -l
  1392
tsc -p . --traceResolution  3.02s