如何在jquery中突破$ .each?

dki*_*zer 2 jquery

当条件满足时,如何在每个方法中突破以下jquery;

var rainbow = {'first' : 'red', 'second' : 'orange', 'third' : 'yellow'};

$.each(rainbow, function (key, color) {

  if (color == 'red') {

    //do something and then break out of the each method
    alert("i'm read, now break.");

  }

});
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