add exameple of testSquencer in typescript inside documentation readme.md file

CHANGELOG.md

@@ -122,6 +122,12 @@
 - `[docs]` `Revised documentation for .toHaveBeenCalled()` to accurately depict its functionality. ([#14853](https://github.com/jestjs/jest/pull/14853))
 - `[docs]` Removed ExpressJS reference link from documentation due to dead link ([#15270](https://github.com/jestjs/jest/pull/15270))
 
+## 29.7.1
+
+### Chore & Maintenance
+
+- `[docs]` Added example of `testSequencer` in typescript inside configuration.md file
+
 ## 29.7.0
 
 ### Features

docs/Configuration.md

@@ -2195,7 +2195,7 @@
 
 For example, you may sort test paths alphabetically:
 
-```js title="custom-sequencer.js"
+```js tab
 const Sequencer = require('@jest/test-sequencer').default;
 
 class CustomSequencer extends Sequencer {
@@ -2228,6 +2228,35 @@
 module.exports = CustomSequencer;
 ```
 
+```ts tab
+import TestSequencer, { ShardOptions } from '@jest/test-sequencer'
+import { Test } from '@jest/test-result'
+
+export default class CustomSequencer extends TestSequencer {
+  /**
+   * Select tests for shard requested via --shard=shardIndex/shardCount
+   * Sharding is applied before sorting
+   */
+  shard (tests: Test[], { shardIndex, shardCount }: ShardOptions): any[] {
+    const shardSize = Math.ceil(tests.length / shardCount)
+    const shardStart = shardSize * (shardIndex - 1)
+    const shardEnd = shardSize * shardIndex
+
+    return [...tests].sort((a, b) => (a.path > b.path ? 1 : -1)).slice(shardStart, shardEnd)
+  }
+
+  /**
+  * Sort test to determine order of execution
+  * Sorting is applied after sharding
+  */
+  sort (tests: Test[]): any[] {
+    const copyTests = [...tests]
+    return copyTests.sort((testA, testB) => (testA.path > testB.path ? 1 : -1))
+  }
+}
+
+```
+
 Add `custom-sequencer` to your Jest configuration:
 
 ```js tab