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Commit 01310fc

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Merge pull request #2 from somekindofwallflower/feature/reverseString
Implement three solutions for solving reverse string problem, write t...
2 parents d422d1b + fcdc332 commit 01310fc

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‎01_reverse_string/index.js

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// --- Directions
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// Given a string, return a new string with the reversed
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// order of characters
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// --- Examples
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// reverse('apple') === 'leppa'
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// reverse('hello') === 'olleh'
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// reverse('Greetings!') === '!sgniteerG'
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// Solution 1
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// function reverse(str) {
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// return str.split('').reverse().join('');
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// }
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// // Solution 2
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// function reverse(str) {
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// let reversed = "";
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// for(let character of str) {
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// reversed = character + reversed;
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// }
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// return reversed;
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// }
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// Solution 3
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function reverse(str) {
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return str.split("").reduce((rev, char) => char + rev, "")
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}
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module.exports = reverse;

‎01_reverse_string/test.js

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const reverse = require('./index');
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test('Reverse function exists', () => {
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expect(reverse).toBeDefined();
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});
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test('Reverse reverses a string', () => {
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expect(reverse('abcd')).toEqual('dcba');
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});
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test('Reverse reverses a string', () => {
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expect(reverse(' abcd')).toEqual('dcba ');
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});

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