https://thaig2pro.github.io/en/tags/frontend/Recent content in Frontend on My BlogHugo -- 0.146.0enTue, 22 Sep 2026 10:00:00 +0700https://thaig2pro.github.io/en/posts/selector-jquery-lot-len-staging/Tue, 22 Sep 2026 10:00:00 +0700https://thaig2pro.github.io/en/posts/selector-jquery-lot-len-staging/A jQuery selector pointed at the wrong container and matched zero elements, so every Increase was submitted as a Decrease of zero. The worse half: the server's 422 landed inside a hidden tab pane, so the error rendered into nothing.