35 lines
728 B
JavaScript
35 lines
728 B
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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/**
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* @param {string} str string
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* @returns {string[]} array of string separated by lines
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*/
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const splitIntoLines = (str) => {
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const results = [];
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const len = str.length;
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let i = 0;
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while (i < len) {
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// indexOf is implemented natively and is significantly faster than
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// scanning char-by-char with charCodeAt for long lines.
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const n = str.indexOf("\n", i);
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if (n === -1) {
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results.push(i === 0 ? str : str.slice(i));
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break;
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}
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if (n === i) {
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results.push("\n");
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} else {
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results.push(str.slice(i, n + 1));
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}
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i = n + 1;
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}
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return results;
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};
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module.exports = splitIntoLines;
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