21 lines
449 B
JavaScript
21 lines
449 B
JavaScript
// @flow
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// Based on _.escape https://github.com/lodash/lodash/blob/master/escape.js
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const reUnescapedHtml = /[&<>"']/g;
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const reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
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const htmlEscapes = {
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'&': '&',
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'<': '<',
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'>': '>',
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'"': '"',
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"'": ''',
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};
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export function escapeHTML(s: string): string {
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if (reHasUnescapedHtml.test(s)) {
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return s.replace(reUnescapedHtml, c => htmlEscapes[c]);
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}
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return s;
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}
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