From 675e5ac75fa79354cdf35478edf9055b7e7b2882 Mon Sep 17 00:00:00 2001
From: Dmitriy <sova123409@gmail.com>
Date: Sun, 9 Jan 2022 18:09:58 +0300
Subject: [PATCH] Add watchParam info

---
 content/en/docs/3.features/4.data-fetching.md |  8 +++++
 .../7.components-glossary/11.watchparam.md    | 31 +++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 content/en/docs/7.components-glossary/11.watchparam.md

diff --git a/content/en/docs/3.features/4.data-fetching.md b/content/en/docs/3.features/4.data-fetching.md
index 8bc34df35a..a42bc5ca2c 100644
--- a/content/en/docs/3.features/4.data-fetching.md
+++ b/content/en/docs/3.features/4.data-fetching.md
@@ -272,3 +272,11 @@ The `asyncData` method is not called on query string changes by default. If
 ::alert{type="next"}
 Learn more about the [watchQuery property](/docs/components-glossary/watchquery) and see the list of available [keys in context](/docs/concepts/context-helpers).
 ::
+
+### Listening to param changes
+
+By default every route param change will call `asyncData`. If you want to disable it, set up `watchParam: false`. For example it may be helpfull to disable `state` reset. 
+
+::alert{type="next"}
+Learn more about the [watchParam property](/docs/components-glossary/watchparam).
+::
diff --git a/content/en/docs/7.components-glossary/11.watchparam.md b/content/en/docs/7.components-glossary/11.watchparam.md
new file mode 100644
index 0000000000..a040d888e5
--- /dev/null
+++ b/content/en/docs/7.components-glossary/11.watchparam.md
@@ -0,0 +1,31 @@
+---
+title: 'The watchParam Property'
+description: Watch param change and execute component methods on change (asyncData, fetch(context))
+navigation.title: WatchParam Property
+category: components-glossary
+---
+# The watchParam property
+
+Watch param change and execute component methods on change (asyncData, fetch(context))
+
+---
+
+- **Type:** `Boolean` (default: `undefined`)
+
+Use the `watchParam` key to set up a watcher for route params. If the params change, asyncData and fetch(context) will be called. Watching is enabled by default.
+
+If you want to disable watching for params, set `watchParam: false`.
+
+```js
+export default {
+  watchParam: false
+}
+```
+
+::alert{type="info"}
+By default `nuxt.js` reset _page_ component `data` state after route param change, you can use `watchParam: false` to disable this behaviour.
+::
+
+::alert{type="warning"}
+**Warning**: The new `fetch` hook introduced in 2.12 is not affected by `watchParam`. For more information see [listening to query string changes](/docs/features/data-fetching#the-fetch-hook) for params is the same.
+::