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@vlad-bezden
Created January 10, 2016 16:37
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Reverse Number
'use strict';
describe('reverse', () => {
const msg = 'should reverse 123 to 321',
actual = reverse(123),
expected = 321;
it(msg, () => {
expect(expected).toEqual(actual);
});
});
function reverse(n) {
let result = 0;
while (n > 0) {
result = result * 10 + n % 10;
n = Math.floor(n / 10);
}
return result;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/jasmine.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/jasmine-html.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/boot.min.js"></script>
<link href="https://cdnjs.cloudflare.com/ajax/libs/jasmine/2.4.1/jasmine.min.css" rel="stylesheet" />
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