Subscribed unsubscribe Subscribe Subscribe

枕を欹てて聴く

香炉峰の雪は簾を撥げて看る

JSC Array optimization for adding new property

This is a blog post for 12/6 VM advent calendar. See http://qiita.com/advent-calendar/2012/vm for more nice blog posts :) Introduction ECMA262にとってArrayは最も重要なObjectの1つであり, loop内で高い頻度でアクセスされる性質上, Arrayの最適化…