Gruntfile.js
function (src, dest, content, fileObject) {
						var files = {};

						_.each(content, function (v, k) {
							var file = fileObject.orig.dest + '/' + k + '.json';

							files[file] = JSON.stringify(v);
						});

						return files;
					}
function (src, dest, content, fileObject) {
						var files = {};

						_.each(content, function (v, k) {
							var file = fileObject.orig.dest + '/' + k + '.json';

							files[file] = JSON.stringify(v);
						});

						return files;
					}
function ( src , dest , content , fileObject ) { var files = { } ; _ . each ( content , function ( v , k ) { var file = fileObject . orig . dest + '/' + k + '.json' ; files [ file ] = JSON . stringify ( v ) ; } ) ; return files ; }
split json by object key
split json by object key