basic skeleton rewritten in reactjs

public/node_modules/eslint-plugin-jest/docs/rules/prefer-equality-matcher.md

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+# Suggest using the built-in equality matchers (`prefer-equality-matcher`)
+
+Jest has built-in matchers for expecting equality which allow for more readable
+tests and error messages if an expectation fails.
+
+## Rule details
+
+This rule checks for _strict_ equality checks (`===` & `!==`) in tests that
+could be replaced with one of the following built-in equality matchers:
+
+- `toBe`
+- `toEqual`
+- `toStrictEqual`
+
+Examples of **incorrect** code for this rule:
+
+```js
+expect(x === 5).toBe(true);
+expect(name === 'Carl').not.toEqual(true);
+expect(myObj !== thatObj).toStrictEqual(true);
+```
+
+Examples of **correct** code for this rule:
+
+```js
+expect(x).toBe(5);
+expect(name).not.toEqual('Carl');
+expect(myObj).toStrictEqual(thatObj);
+```