20240517

node_modules/store/plugins/observe.js

@@ -0,0 +1,19 @@
+var eventsPlugin = require('./events')
+
+module.exports = [eventsPlugin, observePlugin]
+
+function observePlugin() {
+	return {
+		observe: observe,
+		unobserve: unobserve
+	}
+
+	function observe(_, key, callback) {
+		var subId = this.watch(key, callback)
+		callback(this.get(key))
+		return subId
+	}
+	function unobserve(_, subId) {
+		this.unwatch(subId)
+	}
+}