Dynamic Mapping and Concat with Grunt Uglify

Question

I\'m trying to use dynamic mapping AND concat Javascript files with Grunt Uglify.

I have the following which is not working correctly.

Here is my folder structur

Answer 1

You can use the banner property of grunt-contrib-uglify to append the content. https://github.com/gruntjs/grunt-contrib-uglify#banner

Here is the grunt configuration:

grunt.initConfig({
    uglify: {
      options: {
        banner: grunt.file.read('./javascript/account/custom.js'),
        beautify: true,
        mangle: false,
        compress: false,
        preserveComments: 'all'
      },
      files: {
        expand: true,
        cwd: 'javascript/',
        src: ['bills/*.js'],
        dest: 'test/',
        ext: '.min.js',
        extDot: 'first'
      },
    }
  });

In the above configuration every file in the bills folder will get the content of custom.js configured in the banner property.

I hope it helps you.