ECMAScript
ECMA-262を読んでいたら、たまたま見つけたのでメモ。いつもNumber.NaNとか使ってた。 15.1.1 Value Properties of the Global Object15.1.1.1 NaN The initial value of NaN is NaN (8.5). This property has the attributes { DontEnum, DontDelete}.15.1.…
ECMA-262を読んでいたら、たまたま見つけたのでメモ。いつもNumber.NaNとか使ってた。 15.1.1 Value Properties of the Global Object15.1.1.1 NaN The initial value of NaN is NaN (8.5). This property has the attributes { DontEnum, DontDelete}.15.1.…