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/ Reverse Polish Notation expressions in JavaScript | Typescript | ES6
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December 19, 2021 13:22
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| /** | |
| * | |
| * @param str | |
| * @returns | |
| */ | |
| function reversePolish(str) { | |
| str = str.split(" "), result = []; | |
| if (str === "" || str === null) return; | |
| let haystack = str.map((i) => { |