[NEW EXAMPLE] Jest - Diff

[ainzzorl]

General

• Project name: Jest
• Example name: Diff
• Project home page: https://github.com/facebook/jest
• Programming language(s): TypeScript

Description

"Jest is a delightful JavaScript Testing Framework with a focus on simplicity.

When the actual output doesn't match the expectation, Jest "displays differences clearly so people can review changes confidently."

E.g. (borrowed from README.md):

const a = ['delete', 'common', 'changed from'];
const b = ['common', 'changed to', 'insert'];

const difference = diff(a, b);

- Expected
+ Received

  Array [
-   "delete",
    "common",
-   "changed from",
+   "changed to",
+   "insert",
  ]

Links

https://github.com/facebook/jest/tree/master/packages/jest-diff

What makes it interesting

• Highly reusable.
• Interesting functionality.
• Standalone, requires no context.

Related work

No

Other

No.