Grunt concat + uglify with sourcemaps

Question

I use concat to merge JS files into one file and uglify to minimize the JavaScript. How can I create a sourcemaps file that uses the source JS files?

My current gru

Answer 1

Per the grunt-contrib-uglify docs, you can enable sourcemap generation as part of the uglify process.

Your uglify config would look something like:

uglify: {
        dist: {
            files: {
                '<%= config.dist %>/js/main.min.js': ['<%= concat.dist.dest %>']
            },
            options: {
                sourceMap: true
        }
    },