No longer run callable on init (#703)

* No longer run callable on init

* Add release note

CHANGELOG.md

@@ -14,13 +14,17 @@ Each tagged version of Datastar is accompanied by a release note. Read the [rele
 
 - Updated Idiomorph to version [0.7.2](https://github.com/bigskysoftware/idiomorph/blob/main/CHANGELOG.md#072---2025-02-20).
 - When using `data-bind` on an element, the signal value now defaults to the element’s `value` attribute, provided the signal has not already been defined ([#685](https://github.com/starfederation/datastar/issues/685)).
+- The expression passed into `data-on-signals-change` is no longer executed on page load ([#682](https://github.com/starfederation/datastar/issues/682)).
 - Whitespace is now maintained in merged fragments ([#658](https://github.com/starfederation/datastar/issues/658)).
 - Attribute plugins now define a hash of their contents, preventing duplicate applies ([#691](https://github.com/starfederation/datastar/issues/691)).
 - Attribute plugins are now applied to the `html` element instead of the `body` element ([#691](https://github.com/starfederation/datastar/issues/691)).
-- Removed Datastar singleton and export functions directly for `setAlias`, `load`, `apply`
 
 ### Fixed
 
 - Fixed a bug in which `datastar-remove-fragments` events were not having any effect ([#664](https://github.com/starfederation/datastar/issues/664)).
 - Fixed a bug in which `datastarNaN` could be used as an auto-generated element ID ([#679](https://github.com/starfederation/datastar/issues/679)).
-- Fixed a bug in which `data-attr` was not removing the element attribute when using object syntax and the value was `false` ([#693](https://github.com/starfederation/datastar/issues/693)).
+- Fixed a bug in which `data-attr` was not removing the element attribute when using object syntax and the value was `false` ([#693](https://github.com/starfederation/datastar/issues/693)).
+
+### Removed
+
+- Removed the ability to import the Datastar class. The `setAlias`, `load`, and `apply` functions are exported instead.

library/src/plugins/official/dom/attributes/on.ts

@@ -120,7 +120,6 @@ export const On: AttributePlugin = {
 
     if (key.startsWith(SIGNALS_CHANGE_PREFIX)) {
       if (key === SIGNALS_CHANGE_PREFIX) {
-        callback()
         const signalFn = (event: CustomEvent<DatastarSignalEvent>) =>
           callback(event)
         document.addEventListener(DATASTAR_SIGNAL_EVENT, signalFn)

site/static/md/examples/update_signals.md

@@ -20,6 +20,7 @@
 
      <pre
           class="border-2 border-accent bg-base-200 text-accent text-sm rounded-lg focus:ring-primary focus:border-primary block w-full p-2.5"
+          data-text="ctx.signals.JSON()"
           data-on-signals-change="ctx.el.textContent = ctx.signals.JSON()"
      >
           Stuff in signals