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by Rafael S.
01:53
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lib/utf8-buffer-size.js (1 issue)

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/*
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 * Copyright (c) 2018 Rafael da Silva Rocha.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining
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 * a copy of this software and associated documentation files (the
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 * "Software"), to deal in the Software without restriction, including
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 * without limitation the rights to use, copy, modify, merge, publish,
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 * distribute, sublicense, and/or sell copies of the Software, and to
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 * permit persons to whom the Software is furnished to do so, subject to
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 * the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be
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 * included in all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 *
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 */
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/**
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 * @fileoverview The utf8-buffer-size API.
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 * @see https://github.com/rochars/utf8-buffer-size
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 */
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/** @module utf8BufferSize */
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/**
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 * Returns how many bytes are needed to serialize a UTF-8 string.
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 * @see https://encoding.spec.whatwg.org/#utf-8-encoder
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 * @param {string} str The string to pack.
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 * @return {number} The number of bytes needed to serialize the string.
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 */
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export default function utf8BufferSize(str) {
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  /** @type {number} */
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  let bytes = 0;
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  for (let i = 0, len = str.length; i < len; i++) {
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    /** @type {number} */
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    let codePoint = str.codePointAt(i);
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    if (codePoint < 128) {
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      bytes++;
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    } else {
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      if (codePoint <= 2047) {
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        bytes++;
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      } else if(codePoint <= 65535) {
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        bytes+=2;
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      } else if(codePoint <= 1114111) {
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        i++;
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Complexity Coding Style introduced by
You seem to be assigning a new value to the loop variable i here. Please check if this was indeed your intention. Even if it was, consider using another kind of loop instead.
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        bytes+=3;
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      }
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      bytes++;
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    }
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  }
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  return bytes;
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}
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