jquerify or preprocess the context of a callback(curry the context)

jquerify.js

function pre(process, func){
  return function(){
    return func.apply(process(this), arguments);
  }
}

function jquerify (func){ return pre($, func); }

$('div').map(jquerify(function(v, i){
  return this.attr('id');
}))

$('div').map(pre(_, function(){
  return this.chain().keys().include('data-toggle') == true;
}))

$('div').map(pre(_, function(){
  return this.filter(function(value, key){
    return value && /^on/.test(key)
  });
}));

/*
* It turns out this is a bad idea:
*/

var myeach = $.each

$.each = function(set, callback){
  myeach(set, function(){
    callback.apply($(this), arguments);
  }
}

/*
* For some reason, when an even is triggered, it calls' the handler on each of them,
* but if the each returns a jQuery, it seems to try to iterate over it again -- Maximum call stack size exceeded
*/