GitHub - facebookarchive/fbtftp: fbtftp is Facebook's implementation of a dynamic TFTP server framework.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
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8. NullPointerExceptionã®å…¸åž‹ä¾‹ HttpSession session = request.getSession(); User user = session.getAttribute("user"); if (user.isAdmin()) { // ... } ã“ã“ã§NullPointerException発生 引数ãªã—ã§getSessionを呼ã¶ã®ã§ã‚»ãƒƒã‚·ãƒ§ãƒ³ãŒãªã„ å ´åˆã¯ç©ºã®ã‚‚ã®ãŒä½œã‚‰ã‚Œã‚‹ 空ã®Sessionã®å ´åˆã€userã¯nullã«ãªã‚‹ã€‚ 9. Guard against null HttpSession session = request.getSession(false); if (session == null) { response.sendRedirect(LOGIN_URL); return; } User user = session.ge
jQuery 3.0 Release Candidate…Released! | Official jQuery Blog
Welcome to the Release Candidate for jQuery 3.0! This is the same code we expect to release as the final version of jQuery 3.0 (pending any major bugs or regressions). When released, jQuery 3.0 will become the only version of jQuery. The 1.12 and 2.2 branches will continue to receive critical support patches for a while, but will not get any new features or major revisions. Note that jQuery 3.0 wi
Announcing TrailDB - An Efficient Library for Storing and Processing Event Data - NextRoll
tl;dr Today, we are open-sourcing TrailDB, a core library powering AdRoll. TrailDB makes it fast and fun to handle event data. Find it at traildb.io. Problem: Event Data Imagine that you have a large amount of event data that looks like this: 2016-05-02T22:48:38 user023 view features 2016-05-02T22:49:01 user301 click graph 2016-05-02T23:03:02 user023 view pricing 2016-05-02T23:15:45 user187 submit
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