javascriptgruntjsbabeljsgrunt-babel

grunt babel is not working

I'm trying to transpile es6 to es5 but it is not working.

My Gruntfile.js

module.exports = function(grunt){
    "use strict";

    grunt.loadNpmTasks('grunt-babel');

  grunt.initConfig({
    "babel": {
      options: {
        sourceMap: true
      },
      dist: {
        files: {
          "dist/app.js": "app.js"
        }
      }
    }
  });

  grunt.registerTask("default", ["babel"]);
}

when I run grunt the file dist/app.js is the the same off app.js

Is anything wrong?

Solution

  • I found the error.

    I had to intall babel-preset-es2015 : npm install -D babel-preset-es2015

    and config the babel inside package.json.

    {
  "name": "babel",
  "version": "0.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "babel": {
    "presets": [
      "es2015"
    ]
  },
  "author": "",
  "license": "ISC",
  "devDependencies": {
    "babel-cli": "^6.1.18",
    "babel-preset-es2015": "^6.1.18",
    "babelify": "^7.2.0",
    "grunt": "^0.4.5",
    "grunt-babel": "^6.0.0",
    "grunt-browserify": "^4.0.1",
    "grunt-contrib-watch": "^0.6.1",
    "load-grunt-tasks": "^3.3.0"
  }
}