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33 lines
754 B
JavaScript
33 lines
754 B
JavaScript
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const ESCAPE_REPLACEMENTS = {
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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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};
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const BAD_CHARS = /[&<>"'`]/g;
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const POSSIBLE_CHARS = /[&<>"'`]/;
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function escapeChar(chr) {
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return ESCAPE_REPLACEMENTS[chr];
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}
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export default function escape(string) {
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if (string === null) {
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return "";
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} else if (!string) {
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return string + "";
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}
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// Force a string conversion as this will be done by the append regardless and
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// the regex test will do this transparently behind the scenes, causing issues if
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// an object's to string has escaped characters in it.
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string = "" + string;
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if (!POSSIBLE_CHARS.test(string)) {
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return string;
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}
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return string.replace(BAD_CHARS, escapeChar);
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}
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