spec/lib/jspec.js
function(dependency, message) {
      hook('requiring', dependency, message)
      try { eval(dependency) }
      catch (e) { throw 'JSpec depends on ' + dependency + ' ' + message }
      return this
    }
function(dependency, message) {
      hook('requiring', dependency, message)
      try { eval(dependency) }
      catch (e) { throw 'JSpec depends on ' + dependency + ' ' + message }
      return this
    }
function ( dependency , message ) { hook ( 'requiring' , dependency , message ) try { eval ( dependency ) } catch ( e ) { throw 'JSpec depends on ' + dependency + ' ' + message } return this }
Require a dependency, with optional message.

@param  {string} dependency
@param  {string} message (optional)
@return {JSpec}
@api public
Require a dependency with optional message .