taggedjs

taggedjs

tagged template reactive html

documentation

Array identity

null and undefined are valid empty positions in rendered arrays. Unkeyed entries use their array position as identity. Use .key(value) (or an element ID) when a child must retain its DOM node and component state while neighboring entries are inserted, removed, or replaced.

Array readers

array() and arrayWatch() support .some(predicate, thisArg?) with native array semantics: a boolean result, short-circuiting, and (value, index, array) predicate arguments. SignalArray<T> already inherits this typed API from Array<T>. Readers do not emit or schedule renders. Recompute them in an existing signal subscription or render flow; reading .some() does not establish a new automatic dependency. Direct element-property changes still need the normal signal update. arrayWatch() caches reader functions but they read its current .value, including after replacement. As with its existing editors, mutation notification behavior is unchanged.