You need to enable source maps on both the concat and uglify tasks, and you must specify the sourceMapIn option for the uglify task. Here’s a sample grunt config: concat : { options : { sourceMap :true }, dist : { src : [‘www/js/**/*.js’], dest : ‘.tmp/main.js’ } }, uglify : { options : { … Read more
Running a basic test to see if there is a performance difference between executing concat and then uglify vs. just uglify. package.json { “name”: “grunt-concat-vs-uglify”, “version”: “0.0.1”, “description”: “A basic test to see if we can ditch concat and use only uglify for JS files.”, “devDependencies”: { “grunt”: “^0.4.5”, “grunt-contrib-concat”: “^0.5.0”, “grunt-contrib-uglify”: “^0.6.0”, “load-grunt-tasks”: “^1.0.0”, … Read more