Angular 2 .ts file not transpiling to .js on save in Visual Studio 2015 ASP.NET Core project

Question

If I make a change to app.component.ts and save the file, the change won't appear in app.component.js until I build the project manually.

My goal is to have Angular 2 code changes reflected in the browser after I save. I shouldn't have to do a build every time.

Here is my tsconfig.json:

{
  "compilerOptions": {
    "target": "es5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false
  },
  "exclude": [
    "node_modules",
    "typings/main",
    "typings/main.d.ts"
  ]
}

rgvassar · Accepted Answer · 2016-04-08 21:03:35Z

5

You're missing "compileOnSave": true. The TypeScript documentation says it only works with Visual Studio 2015 and with the Atom TypeScript plugin. It also requires TypeScript 1.8.4 or higher.

{
  "compileOnSave": true,
  "compilerOptions": {
    "target": "es5",
    "module": "system",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": false
  },
  "exclude": [
    "node_modules",
    "typings/main",
    "typings/main.d.ts"
  ]
}

answered Apr 8, 2016 at 21:03

rgvassar

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3 Comments

Derek Over a year ago

This worked! None of the other tutorials mentioned compileOnSave. I think it might be a bug in Visual Studio 2015 Update 2?

rgvassar Over a year ago

For me it compiled on save until I added a tsconfig.json file. Then it stopped working until I added compileOnSave.

Andrei Dobrin Over a year ago

For me it still doesn't work. I have posted my project here 1drv.ms/u/s!AvPiv6aM2fzRepKV9J_F0-387Zc can anybody please help me

rbr94 · Accepted Answer · 2016-10-23 16:56:26Z

-1

on Task Runner Explorer go to Custom and run tsc:w

edited Oct 23, 2016 at 16:56

rbr94

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answered Oct 23, 2016 at 14:37

user3453153

1

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