Compile on Save for Typescript in Visual Studio with Gulp

_tsconfig.json

{
  "compilerOptions": {
    "noImplicitAny": false,
    "noEmitOnError": true,
    "removeComments": false,
    "sourceMap": true,
    "target": "es5",
    "module": "amd",
    "inlineSources": true,
    "outFile": "../wwwroot/js/ts/scripts.js"
  },
  "exclude": [
    "node_modules",
    "wwwroot"
  ]
}

gulpfile.js

/// <binding AfterBuild='min' Clean='clean' ProjectOpened='watch' />
"use strict";

var gulp = require("gulp"),
    rimraf = require("rimraf"),
    concat = require("gulp-concat"),
    cssmin = require("gulp-cssmin"),
    uglify = require("gulp-uglify"),
    tsc = require('gulp-typescript'),
    sourcemaps = require('gulp-sourcemaps'),
    tsProject = tsc.createProject('./Scripts/_tsconfig.json'),
    fs = require("fs");

var paths = {
    webroot: "./wwwroot/"
};

paths.ts = "./Scripts/**/*.ts";
paths.js = paths.webroot + "js/**/*.js";
paths.minJs = paths.webroot + "js/**/*.min.js";
paths.css = paths.webroot + "css/**/*.css";
paths.minCss = paths.webroot + "css/**/*.min.css";
paths.concatJsDest = paths.webroot + "js/site.min.js";
paths.concatCssDest = paths.webroot + "css/site.min.css";

gulp.task("clean:js", function (cb) {
    rimraf(paths.concatJsDest, cb);
});

gulp.task("clean:css", function (cb) {
    rimraf(paths.concatCssDest, cb);
});

gulp.task("clean", ["clean:js", "clean:css"]);

gulp.task("min:js", function () {
    return gulp.src([paths.js, "!" + paths.minJs], { base: "." })
        .pipe(concat(paths.concatJsDest))
        .pipe(uglify())
        .pipe(gulp.dest("."));
});

gulp.task("min:css", function () {
    return gulp.src([paths.css, "!" + paths.minCss])
        .pipe(concat(paths.concatCssDest))
        .pipe(cssmin())
        .pipe(gulp.dest("."));
});

gulp.task("min", ["min:js", "min:css"]);

gulp.task('compile-ts', function () {
    var tsResult = gulp.src(paths.ts)
        .pipe(sourcemaps.init())
        .pipe(tsc(tsProject));
    tsResult.dts.pipe(gulp.dest(paths.webroot));
    return tsResult.js
        .pipe(sourcemaps.write('.'))
        .pipe(gulp.dest(paths.webroot));
});

gulp.task('watch', function () {
    gulp.watch([paths.ts], ['compile-ts']);
});

package.json

{
  "name": "ASP.NET",
  "version": "0.0.0",
  "devDependencies": {
    "gulp": "3.8.11",
    "gulp-concat": "2.5.2",
    "gulp-cssmin": "0.1.7",
    "gulp-uglify": "1.2.0",
    "rimraf": "2.2.8",
    "gulp-sourcemaps": "1.6.0",
    "gulp-typescript": "2.10.0"
  }
}