javascript - Coffeescript incorrect scope of @ when passing method as callback -


when pass anonymous function fat arrows socket.io callback , call method in same object (as follows) scope of @ correct:

module.exports = class invitecreatesocket extends abstractsocket   register: () ->     @socket.on 'invite:create', (data, callback) => @create data, callback    create: (data = {}, callback = @_noop) ->     # returns instantiated invitecreatesocket. bonzer!     console.log @

however, if pass in directly, scope of socket, if had run previous code thin arrows:

module.exports = class invitecreatesocket extends abstractsocket   register: () ->     @socket.on 'invite:create', @create    create: (data = {}, callback = @_noop) ->     # returns socket. not bonzer. not bonzer @ all.     console.log @

so, is there nice clean way of getting object scope without having relay them through fat anonymous function? first method works seems bit clumsy , requires having synchronise parameters in methods. in advance!

why not use fat arrow functions belonging class, binding them correctly context of class (and it's instances) - more how intended work.

module.exports = class invitecreatesocket extends abstractsocket   register: () =>     @socket.on 'invite:create', @create     return    create: (data = {}, callback = @_noop) =>     console.log @     return

also, don't forget add empty returns in function not intended return something.


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