3 ms·
Not that I agree with the sentiment of the article (defaulting with || is usually okay!), but hopefully people reading these pieces, and worrying about such thi
by robinson7d 11y ago
Not that I agree with the sentiment of the article (defaulting with || is usually okay!), but hopefully people reading these pieces, and worrying about such things, are already using strict mode.
- tracker1 11y agoyou can also use... if (foo === void 0) ... //or var undef; ... if (foo === undef) ...