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69 lines
1.2 KiB
Markdown
69 lines
1.2 KiB
Markdown
---
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id: 6939b873185d8e00d453563d
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title: "Challenge 158: Array Swap"
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challengeType: 29
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dashedName: challenge-158
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---
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# --description--
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Given an array with two values, return an array with the values swapped.
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For example, given `["A", "B"]` return `["B", "A"]`.
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# --hints--
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`array_swap(["A", "B"])` should return `["B", "A"]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(array_swap(["A", "B"]), ["B", "A"])`)
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}})
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```
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`array_swap([25, 20])` should return `[20, 25]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(array_swap([25, 20]), [20, 25])`)
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}})
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```
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`array_swap([True, False])` should return `[False, True]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(array_swap([True, False]), [False, True])`)
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}})
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```
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`array_swap(["1", 1])` should return `[1, "1"]`.
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```js
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({test: () => { runPython(`
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from unittest import TestCase
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TestCase().assertEqual(array_swap(["1", 1]), [1, "1"])`)
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}})
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```
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# --seed--
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## --seed-contents--
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```py
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def array_swap(arr):
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return arr
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```
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# --solutions--
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```py
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def array_swap(arr):
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return [arr[1], arr[0]]
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```
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