Web Development
Using ResizeObserver when an element changes size
Use ResizeObserver when a component changes size without a window resize, and avoid callbacks that continually resize their own target.
SOFTWARE · SECURITY · DESIGN
JavaScript
Web Development
Read a dialog’s returnValue without treating it as saved form data
A native HTML dialog can return a choice string without saving anything. Reset the value on opening and handle cancellation separately from persistence.
Frontend Practice
Debounce and throttle control different kinds of repeated browser work
Choose debounce or throttle by deciding whether repeated browser events should wait for a pause or trigger work at a controlled rate.
Web Development
URLSearchParams set and append produce different repeated query strings
Use URLSearchParams append for additional values and set for replacement, then test repeated parameters against the server’s expected query format.
Front-End Practice
AbortController Stops Waiting for a Fetch, but Cannot Undo Every Server Action
Give each cancellable fetch its own AbortController, handle cancellation separately from errors, and remember that stopping the client is not a server rollback.