Grunt - not able to minifiy js file

Question

Grunt - not able to minifiy js file

I am running grunt on my app to jshinting and minification, In which jshint is working but the minification command not working at all. getting error like this:

D:\grunt>grunt min
Warning: Task "min" not found. Use --force to continue.

Aborted due to warnings.

here is my config file:

module.exports = function(grunt){
    // Project configuration.
  grunt.initConfig({
    jshint: {
        options: {
            curly: true,
            eqeqeq: true,
            eqnull: true,
            browser: true,
            globals: {
              jQuery: true
            }
        },
      myFiles: ['js/**/*.js']
    },
    min:{
        dest : {
            src:'js/app.js',
            dest:'js/app.min.js'
        }
    },
  });
  // Each plugin must be loaded following this pattern
  grunt.loadNpmTasks('grunt-contrib-jshint');

}

In this project I have the modules installed is :

grunt, grunt-contrib-jshint, jshint - I don't know the wrong what i do.. Any one help me to figure-out the issue please.

thanks in advance!

javascript
node.js
gruntjs

Answer 1

To minify files you need, for example, uglify.

Install it with this command:

npm install grunt-contrib-uglify --save-dev

Then, add it in your Gruntfile

grunt.loadNpmTasks('grunt-contrib-uglify');

Finally, you have to change the code of your Gruntfile:

  grunt.initConfig({
    jshint: {
      options: {
        curly: true,
        eqeqeq: true,
        eqnull: true,
        browser: true,
        globals: {
          jQuery: true
        }
      },
    myFiles: ['js/**/*.js']
  },
  uglify:{
    dest : {
        files: {
          'js/app.min.js': ['js/app.js']
        }
    }
  },
});

Regards.

Answer 2

You need to install a minify task like

grunt-contrib-uglify

in order to minify the files.