Birmingham | 26-ITP-May | Ogbemi Mene | sprint 3 | 2-practice TDD coursework exercises#1491
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| const pr = new Intl.PluralRules("en-US", { type: "ordinal" }); | ||
| const suffixes = { one: "st", two: "nd", few: "rd", other: "th" }; | ||
| const rule = pr.select(n); | ||
| return `${n}${suffixes[rule]}`; |
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Interesting approach. Could you solve it without using any built-in API?
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| test("should append 'th' for all other numbers", () => { | ||
| expect(getOrdinalNumber(4)).toEqual("4th"); | ||
| expect(getOrdinalNumber(10)).toEqual("10th"); | ||
| expect(getOrdinalNumber(20)).toEqual("20th"); | ||
| expect(getOrdinalNumber(34)).toEqual("34th"); | ||
| expect(getOrdinalNumber(100)).toEqual("100th"); | ||
| }); |
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When a test fails with the message "... all other numbers", it may be unclear what "other numbers" actually refers to. Can you revise the test description to make it more informative?
To make the test coverage more comprehensive, consider using arrays and loops (or other suitable Jest patterns) to test multiple values, ideally covering numbers that end with every possible digit in this category.
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