title: How to angularjs write log to file?
body: <p>I have a question? In Angularjs project, what log I can use to write to file? $log of Angular or log4javascript.
  I have code config for $log of Angularjs:</p>
  
  <pre><code>$log.getInstance = function (context) {
          return {
              log: enhanceLogging($log.log, context),
              info: enhanceLogging($log.info, context),
              warn: enhanceLogging($log.warn, context),
              debug: enhanceLogging($log.debug, context),
              error: enhanceLogging($log.error, context)
          };
      };
  
      function enhanceLogging(loggingFunc, context) {
          return function () {
              var modifiedArguments = [].slice.call(arguments);
              modifiedArguments[0] = [moment().format("dddd h:mm:ss a") + '::[' + context + ']: '] + modifiedArguments[0];
              loggingFunc.apply(null, modifiedArguments);
          };
      }
  </code></pre>
  
  <p>It's working but it only write to console and now I want log output to file?</p>