rem: this.each(function(value, index) { if (!iterator(value, index)) results.push(value); }); 
add: return this.collect(function(value, index) { return {value: value, criteria: iterator(value, index)}; }).sort(function(left, right) { 
context:     this.each(function(value, index) {      if (!iterator(value, index))        results.push(value);    });
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