Defanging an IP Address LeetCode solution in JavaScript

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/**
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 * @param {string} address
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 * @return {string}
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 */
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var defangIPaddr = function (address) {
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  var result = "";
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  for (var i = 0; i < address.length; i++) {
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    if (address[i] === ".") result += "[.]";
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    else result += address[i];
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  }
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  return result;
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};