code: function HTMLCov(runner) {
    var jade = require('jade')
      , file = __dirname + '/templates/coverage.jade'
      , str = fs.readFileSync(file, 'utf8')
      , fn = jade.compile(str, { filename: file })
      , self = this;
  
    JSONCov.call(this, runner, false);
  
    runner.on('end', function(){
      process.stdout.write(fn({
          cov: self.cov
        , coverageClass: coverageClass
      }));
    });
  }
docs: Initialize a new `JsCoverage` reporter.
  
  @param {Runner} runner
  @api public