From 7a31b979a09a4d99199fc8351e8b95866eaf40b2 Mon Sep 17 00:00:00 2001
From: Chalarangelo <chalarangelo@gmail.com>
Date: Thu, 31 Dec 2020 13:13:47 +0200
Subject: [PATCH] Add storage testers

---
 snippets/isLocalStorageEnabled.md   | 26 ++++++++++++++++++++++++++
 snippets/isSessionStorageEnabled.md | 26 ++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 snippets/isLocalStorageEnabled.md
 create mode 100644 snippets/isSessionStorageEnabled.md

diff --git a/snippets/isLocalStorageEnabled.md b/snippets/isLocalStorageEnabled.md
new file mode 100644
index 000000000..204b96c4e
--- /dev/null
+++ b/snippets/isLocalStorageEnabled.md
@@ -0,0 +1,26 @@
+---
+title: isLocalStorageEnabled
+tags: browser,intermediate
+---
+
+Checks if `localStorage` is enabled.
+
+- Use a `try...catch` block to return `true` if all operations complete successfully, `false` otherwise.
+- Use `Storage.setItem()` and `Storage.removeItem()` to test storing and deleting a value in `window.localStorage`.
+
+```js
+const isLocalStorageEnabled = () => {
+  try {
+    const key = `__storage__test`;
+    window.localStorage.setItem(key, null);
+    window.localStorage.removeItem(key);
+    return true;
+  } catch (e) {
+    return false;
+  }
+};
+```
+
+```js
+isLocalStorageEnabled(); // true, if localStorage is accessible
+```
diff --git a/snippets/isSessionStorageEnabled.md b/snippets/isSessionStorageEnabled.md
new file mode 100644
index 000000000..9aaca6aac
--- /dev/null
+++ b/snippets/isSessionStorageEnabled.md
@@ -0,0 +1,26 @@
+---
+title: isSessionStorageEnabled
+tags: browser,intermediate
+---
+
+Checks if `sessionStorage` is enabled.
+
+- Use a `try...catch` block to return `true` if all operations complete successfully, `false` otherwise.
+- Use `Storage.setItem()` and `Storage.removeItem()` to test storing and deleting a value in `window.sessionStorage`.
+
+```js
+const isSessionStorageEnabled = () => {
+  try {
+    const key = `__storage__test`;
+    window.sessionStorage.setItem(key, null);
+    window.sessionStorage.removeItem(key);
+    return true;
+  } catch (e) {
+    return false;
+  }
+};
+```
+
+```js
+isSessionStorageEnabled(); // true, if sessionStorage is accessible
+```