> > So this style I favorite since I want to avoid creating another function: > > this is like believing that `fn.bind()` won't create a different > object/function ... right?
I like how you pick out my word (like a certain gender group would) even know I re correct my self right after that with: >> Even know only will return another function base on the parameter to you >> pass to it. Sent from my iPhone > On May 14, 2015, at 2:50 PM, Andrea Giammarchi <[email protected]> > wrote: > > > So this style I favorite since I want to avoid creating another function: > > this is like believing that `fn.bind()` won't create a different > object/function ... right? > > Or you want to lock that function to receive one forever until you unlock it? > That's the only way you could mutate the function behavior without creating a > new object/function like bind would do. > > And since bind is at least 3X slower than fat arrow, why would you do that? > > >> On Thu, May 14, 2015 at 7:36 PM, Emanuel Allen <[email protected]> >> wrote: >> It should allow for: >> >> arr.forEach(arr.push.only(1));//only return a function limiting the number >> of arguments pass to it... >> >> But I guess this work too: >> arr.forEach(e=>arr.push(e)); >> >> But my goal was to just: >> arr.forEach(arr.push);//will not work >> >> So this style I favorite since I want to avoid creating another function: >> arr.forEach(arr.push.only(1)); >> >> Even know only will return another function base on the parameter to you >> pass to it. >> >> Still, I think it would be a great addition to the Function.prototype object. >> >> JS4L >> >>> On May 14, 2015, at 1:42 PM, Andrea Giammarchi >>> <[email protected]> wrote: >>> >>> `$1 => a.push($1)` >>> >>> fat arrow function shines mostly in these cases, not sure there's a need >>> for anything else. >>> >>> `($1, $2, $3) => a.push($2, $3)` >>> >>> Regards >>> >>>> On Thu, May 14, 2015 at 5:26 PM, Emanuel Allen <[email protected]> >>>> wrote: >>>> That would be great to have an only method on Function.prototype.only >>>> >>>> It can take one to three parameters as arguments: >>>> -Only with using the first argument: >>>> >>>> SomeFunction.only(1); >>>> only allow the first argument in. It target the place holder so: >>>> fn.only(2) allow the two most left argument in. >>>> >>>> -Only with using the first 2 argument: >>>> >>>> SomeFunction.only(1,2); >>>> only allow the second argument in; the second argument target where to >>>> start and the first not how many to let in. So fn.only(2,3); let the third >>>> and fourth argument in. >>>> >>>> -Only with using all arguments placeholder: >>>> >>>> SomeFunction.only(1,2,true); >>>> This will denote that we start from the right and and let the second from >>>> last argument in >>>> >>>> The last parameter is informing if we should start left or right when >>>> choosing the parameters to let in. The default is false; start left to >>>> right >>>> >>>> Internally this could use the function's arguments object to query what to >>>> let in. >>>> >>>> JS4L >>>> >>>>> On May 14, 2015, at 11:37 AM, Allen Wirfs-Brock <[email protected]> >>>>> wrote: >>>>> >>>>> >>>>>> On May 14, 2015, at 8:19 AM, Emanuel Allen wrote: >>>>>> >>>>>> Oh yes that is correct since push will push in elements separated by >>>>>> commas... Still my original problem is that I can't simply do >>>>>> arr.push(arr2.push); but it doesn't matter since it'll also push the >>>>>> three parameters into the array as well. >>>>> >>>>> exactly, see http://www.wirfs-brock.com/allen/posts/166 >>>>> >>>>>> >>>>>> >>>>>> Sent from my iPhone >>>>>> >>>>>>> On May 14, 2015, at 10:49 AM, Erik Arvidsson <[email protected]> >>>>>>> wrote: >>>>>>> >>>>>>> Still, the callback for forEach is called with 3 arguments; value, >>>>>>> index and the array. >>>>>>> >>>>>>> This is clearly documented in the spec and mdn and other resources. >>>>>>> >>>>>>> >>>>>>>> On Thu, May 14, 2015, 10:42 Garrett Smith <[email protected]> >>>>>>>> wrote: >>>>>>>> On 5/14/15, Emanuel Allen <[email protected]> wrote: >>>>>>>> > Surprise that I can't do arr1.forEeach(arr2.push); >>>>>>>> > >>>>>>>> >>>>>>>> Check that line more carefully. >>>>>>>> >>>>>>>> >>>>>>>> > Will throw an error. >>>>>>>> > >>>>>>>> > Using bind as: >>>>>>>> > >>>>>>>> > push = arr2.bind(push); >>>>>>>> >>>>>>>> Arrays don't have a bind method. >>>>>>>> -- >>>>>>>> Garrett >>>>>>>> @xkit >>>>>>>> ChordCycles.com >>>>>>>> garretts.github.io >>>>>>>> personx.tumblr.com >>>>>>>> _______________________________________________ >>>>>>>> es-discuss mailing list >>>>>>>> [email protected] >>>>>>>> https://mail.mozilla.org/listinfo/es-discuss >>>>>> _______________________________________________ >>>>>> es-discuss mailing list >>>>>> [email protected] >>>>>> https://mail.mozilla.org/listinfo/es-discuss >>>> >>>> _______________________________________________ >>>> es-discuss mailing list >>>> [email protected] >>>> https://mail.mozilla.org/listinfo/es-discuss >
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