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Reversing a string while maintaining the position of spaces in JavaScript
Problem
We are required to write a JavaScript function that takes in a string that might contain some spaces.
Our function should reverse the words present in the string internally without interchange the characters of two separate words or the spaces.
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Example
Following is the code −
const str = 'this is normal string'; const reverseWordsWithin = (str = '') => { let res = ""; for (let i = str.length - 1; i >= 0; i--){ if(str[i] != " "){ res += str[i]; }; if(str[res.length] == " "){ res += str[res.length]; }; }; return res; }; console.log(reverseWordsWithin(str));
Output
gnir ts lamron sisiht
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