gruntjs - unexpected identifier error in grunt.js file -

can tell me why getting following error in terminal when running following grunt.js file?

module.exports = function(grunt) {  grunt.initconfig({      pkg: grunt.file.readjson('package.json'),      concat: { // here our concatenating       dist: {       src: [       'components/js/*.js' // in src js folder     ],     dest: 'js/script.js',     }     }      uglify: {     build: {     src: 'js/script.js',     dest: 'js/script.min.js'     }     }  });  //add plugins here grunt.loadnpmtasks('grunt-contrib-concat'); grunt.loadnpmtasks('grunt-contrib-uglify');  //what happens when type 'grunt' in terminal grunt.registertask('default', ['concat', 'uglify']);  }; 

the error is:

loading "gruntfile.js" tasks...error 

syntaxerror: unexpected identifier warning: task "default" not found. use --force continue.

thanks!

you have missing comma:

grunt.initconfig({    pkg: grunt.file.readjson('package.json'),    concat: {     dist: {       src: [         'components/js/*.js'       ],       dest: 'js/script.js',     }   }, // <---- here missing comma    uglify: {     build: {       src: 'js/script.js',       dest: 'js/script.min.js'     }   } }); 

make favor , use coffeescript!

module.exports = (grunt) ->   grunt.initconfig      pkg: grunt.file.readjson("package.json")      concat:       dist:         src: ["components/js/*.js"]         dest: "js/script.js"      uglify:       build:         src: "js/script.js"         dest: "js/script.min.js"     grunt.loadnpmtasks "grunt-contrib-concat"   grunt.loadnpmtasks "grunt-contrib-uglify"    grunt.registertask "default", [     "concat"     "uglify"   ]