Why does JavaScript sometimes work and sometimes not? Understanding the basics of loading order

I created a process to open a menu when a button is pressed, but nothing happens.Even with the same JavaScript, it suddenly started working when I changed where the file was loaded.In web development, ...

API for Directly Controlling the Display/Hide of Subtable Row Add/Delete Buttons in kintone

In the regular maintenance on October 11, 2026, a long-awaited new feature will be added to the kintone JavaScript API. This is the official API for "controlling subtable row add/delete buttons", ...