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Why ['1', '7', '11'].map(parseInt) returns [1, NaN, 3] in Javascript

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Why ['1', '7', '11'].map(parseInt) returns [1, NaN, 3] in JavaScript 113 pts · 150 comments · Jun 2019 113 pts · 150 comments · Jun 2019
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Wat destroyallsoftware.com destroyallsoftware.com
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parseInt() - JavaScript | MDN developer.mozilla.org developer.mozilla.org
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radix - ESLint - Pluggable JavaScript Linter eslint.org eslint.org
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Array.prototype.map() - JavaScript | MDN developer.mozilla.org developer.mozilla.org
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