81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
/**
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* Checks if an object is a Cheerio instance.
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*
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* @category Utils
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* @param maybeCheerio - The object to check.
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* @returns Whether the object is a Cheerio instance.
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*/
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export function isCheerio(maybeCheerio) {
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return maybeCheerio.cheerio != null;
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}
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/**
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* Convert a string to camel case notation.
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*
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* @private
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* @category Utils
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* @param str - The string to be converted.
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* @returns String in camel case notation.
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*/
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export function camelCase(str) {
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return str.replace(/[._-](\w|$)/g, (_, x) => x.toUpperCase());
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}
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/**
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* Convert a string from camel case to "CSS case", where word boundaries are
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* described by hyphens ("-") and all characters are lower-case.
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*
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* @private
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* @category Utils
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* @param str - The string to be converted.
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* @returns String in "CSS case".
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*/
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export function cssCase(str) {
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return str.replace(/[A-Z]/g, '-$&').toLowerCase();
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}
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/**
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* Iterate over each DOM element without creating intermediary Cheerio
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* instances.
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*
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* This is indented for use internally to avoid otherwise unnecessary memory
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* pressure introduced by _make.
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*
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* @category Utils
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* @param array - The array to iterate over.
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* @param fn - Function to call.
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* @returns The original instance.
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*/
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export function domEach(array, fn) {
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const len = array.length;
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for (let i = 0; i < len; i++)
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fn(array[i], i);
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return array;
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}
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var CharacterCodes;
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(function (CharacterCodes) {
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CharacterCodes[CharacterCodes["LowerA"] = 97] = "LowerA";
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CharacterCodes[CharacterCodes["LowerZ"] = 122] = "LowerZ";
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CharacterCodes[CharacterCodes["UpperA"] = 65] = "UpperA";
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CharacterCodes[CharacterCodes["UpperZ"] = 90] = "UpperZ";
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CharacterCodes[CharacterCodes["Exclamation"] = 33] = "Exclamation";
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})(CharacterCodes || (CharacterCodes = {}));
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/**
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* Check if string is HTML.
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*
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* Tests for a `<` within a string, immediate followed by a letter and
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* eventually followed by a `>`.
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*
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* @private
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* @category Utils
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* @param str - The string to check.
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* @returns Indicates if `str` is HTML.
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*/
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export function isHtml(str) {
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const tagStart = str.indexOf('<');
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if (tagStart < 0 || tagStart > str.length - 3)
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return false;
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const tagChar = str.charCodeAt(tagStart + 1);
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return (((tagChar >= CharacterCodes.LowerA && tagChar <= CharacterCodes.LowerZ) ||
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(tagChar >= CharacterCodes.UpperA && tagChar <= CharacterCodes.UpperZ) ||
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tagChar === CharacterCodes.Exclamation) &&
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str.includes('>', tagStart + 2));
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}
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//# sourceMappingURL=utils.js.map
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