| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644 | /** * Methods for traversing the DOM structure. * * @module cheerio/traversing */import { Node, Element, Document } from 'domhandler';import type { Cheerio } from '../cheerio';import type { AcceptedFilters } from '../types';/** * Get the descendants of each element in the current set of matched elements, * filtered by a selector, jQuery object, or element. * * @category Traversing * @example * * ```js * $('#fruits').find('li').length; * //=> 3 * $('#fruits').find($('.apple')).length; * //=> 1 * ``` * * @param selectorOrHaystack - Element to look for. * @returns The found elements. * @see {@link https://api.jquery.com/find/} */export declare function find<T extends Node>(this: Cheerio<T>, selectorOrHaystack?: string | Cheerio<Element> | Element): Cheerio<Element>;/** * Get the parent of each element in the current set of matched elements, * optionally filtered by a selector. * * @category Traversing * @example * * ```js * $('.pear').parent().attr('id'); * //=> fruits * ``` * * @param selector - If specified filter for parent. * @returns The parents. * @see {@link https://api.jquery.com/parent/} */export declare const parent: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Get a set of parents filtered by `selector` of each element in the current * set of match elements. * * @category Traversing * @example * * ```js * $('.orange').parents().length; * //=> 2 * $('.orange').parents('#fruits').length; * //=> 1 * ``` * * @param selector - If specified filter for parents. * @returns The parents. * @see {@link https://api.jquery.com/parents/} */export declare const parents: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Get the ancestors of each element in the current set of matched elements, up * to but not including the element matched by the selector, DOM node, or cheerio object. * * @category Traversing * @example * * ```js * $('.orange').parentsUntil('#food').length; * //=> 1 * ``` * * @param selector - Selector for element to stop at. * @param filterSelector - Optional filter for parents. * @returns The parents. * @see {@link https://api.jquery.com/parentsUntil/} */export declare const parentsUntil: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | null | undefined, filterSelector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * For each element in the set, get the first element that matches the selector * by testing the element itself and traversing up through its ancestors in the DOM tree. * * @category Traversing * @example * * ```js * $('.orange').closest(); * //=> [] * * $('.orange').closest('.apple'); * // => [] * * $('.orange').closest('li'); * //=> [<li class="orange">Orange</li>] * * $('.orange').closest('#fruits'); * //=> [<ul id="fruits"> ... </ul>] * ``` * * @param selector - Selector for the element to find. * @returns The closest nodes. * @see {@link https://api.jquery.com/closest/} */export declare function closest<T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Node>): Cheerio<Node>;/** * Gets the next sibling of the first selected element, optionally filtered by a selector. * * @category Traversing * @example * * ```js * $('.apple').next().hasClass('orange'); * //=> true * ``` * * @param selector - If specified filter for sibling. * @returns The next nodes. * @see {@link https://api.jquery.com/next/} */export declare const next: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets all the following siblings of the first selected element, optionally * filtered by a selector. * * @category Traversing * @example * * ```js * $('.apple').nextAll(); * //=> [<li class="orange">Orange</li>, <li class="pear">Pear</li>] * $('.apple').nextAll('.orange'); * //=> [<li class="orange">Orange</li>] * ``` * * @param selector - If specified filter for siblings. * @returns The next nodes. * @see {@link https://api.jquery.com/nextAll/} */export declare const nextAll: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets all the following siblings up to but not including the element matched * by the selector, optionally filtered by another selector. * * @category Traversing * @example * * ```js * $('.apple').nextUntil('.pear'); * //=> [<li class="orange">Orange</li>] * ``` * * @param selector - Selector for element to stop at. * @param filterSelector - If specified filter for siblings. * @returns The next nodes. * @see {@link https://api.jquery.com/nextUntil/} */export declare const nextUntil: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | null | undefined, filterSelector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets the previous sibling of the first selected element optionally filtered * by a selector. * * @category Traversing * @example * * ```js * $('.orange').prev().hasClass('apple'); * //=> true * ``` * * @param selector - If specified filter for siblings. * @returns The previous nodes. * @see {@link https://api.jquery.com/prev/} */export declare const prev: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets all the preceding siblings of the first selected element, optionally * filtered by a selector. * * @category Traversing * @example * * ```js * $('.pear').prevAll(); * //=> [<li class="orange">Orange</li>, <li class="apple">Apple</li>] * * $('.pear').prevAll('.orange'); * //=> [<li class="orange">Orange</li>] * ``` * * @param selector - If specified filter for siblings. * @returns The previous nodes. * @see {@link https://api.jquery.com/prevAll/} */export declare const prevAll: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets all the preceding siblings up to but not including the element matched * by the selector, optionally filtered by another selector. * * @category Traversing * @example * * ```js * $('.pear').prevUntil('.apple'); * //=> [<li class="orange">Orange</li>] * ``` * * @param selector - Selector for element to stop at. * @param filterSelector - If specified filter for siblings. * @returns The previous nodes. * @see {@link https://api.jquery.com/prevUntil/} */export declare const prevUntil: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | null | undefined, filterSelector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Get the siblings of each element (excluding the element) in the set of * matched elements, optionally filtered by a selector. * * @category Traversing * @example * * ```js * $('.pear').siblings().length; * //=> 2 * * $('.pear').siblings('.orange').length; * //=> 1 * ``` * * @param selector - If specified filter for siblings. * @returns The siblings. * @see {@link https://api.jquery.com/siblings/} */export declare const siblings: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets the children of the first selected element. * * @category Traversing * @example * * ```js * $('#fruits').children().length; * //=> 3 * * $('#fruits').children('.pear').text(); * //=> Pear * ``` * * @param selector - If specified filter for children. * @returns The children. * @see {@link https://api.jquery.com/children/} */export declare const children: <T extends Node>(this: Cheerio<T>, selector?: AcceptedFilters<Element> | undefined) => Cheerio<Element>;/** * Gets the children of each element in the set of matched elements, including * text and comment nodes. * * @category Traversing * @example * * ```js * $('#fruits').contents().length; * //=> 3 * ``` * * @returns The children. * @see {@link https://api.jquery.com/contents/} */export declare function contents<T extends Node>(this: Cheerio<T>): Cheerio<Node>;/** * Iterates over a cheerio object, executing a function for each matched * element. When the callback is fired, the function is fired in the context of * the DOM element, so `this` refers to the current element, which is equivalent * to the function parameter `element`. To break out of the `each` loop early, * return with `false`. * * @category Traversing * @example * * ```js * const fruits = []; * * $('li').each(function (i, elem) { *   fruits[i] = $(this).text(); * }); * * fruits.join(', '); * //=> Apple, Orange, Pear * ``` * * @param fn - Function to execute. * @returns The instance itself, useful for chaining. * @see {@link https://api.jquery.com/each/} */export declare function each<T>(this: Cheerio<T>, fn: (this: T, i: number, el: T) => void | boolean): Cheerio<T>;/** * Pass each element in the current matched set through a function, producing a * new Cheerio object containing the return values. The function can return an * individual data item or an array of data items to be inserted into the * resulting set. If an array is returned, the elements inside the array are * inserted into the set. If the function returns null or undefined, no element * will be inserted. * * @category Traversing * @example * * ```js * $('li') *   .map(function (i, el) { *     // this === el *     return $(this).text(); *   }) *   .toArray() *   .join(' '); * //=> "apple orange pear" * ``` * * @param fn - Function to execute. * @returns The mapped elements, wrapped in a Cheerio collection. * @see {@link https://api.jquery.com/map/} */export declare function map<T, M>(this: Cheerio<T>, fn: (this: T, i: number, el: T) => M[] | M | null | undefined): Cheerio<M>;/** * Iterates over a cheerio object, reducing the set of selector elements to * those that match the selector or pass the function's test. * * This is the definition for using type guards; have a look below for other * ways to invoke this method. The function is executed in the context of the * selected element, so `this` refers to the current element. * * @category Traversing * @example <caption>Function</caption> * * ```js * $('li') *   .filter(function (i, el) { *     // this === el *     return $(this).attr('class') === 'orange'; *   }) *   .attr('class'); //=> orange * ``` * * @param match - Value to look for, following the rules above. * @returns The filtered collection. * @see {@link https://api.jquery.com/filter/} */export declare function filter<T, S extends T>(this: Cheerio<T>, match: (this: T, index: number, value: T) => value is S): Cheerio<S>;/** * Iterates over a cheerio object, reducing the set of selector elements to * those that match the selector or pass the function's test. * * - When a Cheerio selection is specified, return only the elements contained in *   that selection. * - When an element is specified, return only that element (if it is contained in *   the original selection). * - If using the function method, the function is executed in the context of the *   selected element, so `this` refers to the current element. * * @category Traversing * @example <caption>Selector</caption> * * ```js * $('li').filter('.orange').attr('class'); * //=> orange * ``` * * @example <caption>Function</caption> * * ```js * $('li') *   .filter(function (i, el) { *     // this === el *     return $(this).attr('class') === 'orange'; *   }) *   .attr('class'); //=> orange * ``` * * @param match - Value to look for, following the rules above. See *   {@link AcceptedFilters}. * @returns The filtered collection. * @see {@link https://api.jquery.com/filter/} */export declare function filter<T, S extends AcceptedFilters<T>>(this: Cheerio<T>, match: S): Cheerio<S extends string ? Element : T>;export declare function filterArray<T>(nodes: T[], match: AcceptedFilters<T>, xmlMode?: boolean, root?: Document): Element[] | T[];/** * Checks the current list of elements and returns `true` if *any* of the * elements match the selector. If using an element or Cheerio selection, * returns `true` if *any* of the elements match. If using a predicate function, * the function is executed in the context of the selected element, so `this` * refers to the current element. * * @category Attributes * @param selector - Selector for the selection. * @returns Whether or not the selector matches an element of the instance. * @see {@link https://api.jquery.com/is/} */export declare function is<T>(this: Cheerio<T>, selector?: AcceptedFilters<T>): boolean;/** * Remove elements from the set of matched elements. Given a Cheerio object that * represents a set of DOM elements, the `.not()` method constructs a new * Cheerio object from a subset of the matching elements. The supplied selector * is tested against each element; the elements that don't match the selector * will be included in the result. * * The `.not()` method can take a function as its argument in the same way that * `.filter()` does. Elements for which the function returns `true` are excluded * from the filtered set; all other elements are included. * * @category Traversing * @example <caption>Selector</caption> * * ```js * $('li').not('.apple').length; * //=> 2 * ``` * * @example <caption>Function</caption> * * ```js * $('li').not(function (i, el) { *   // this === el *   return $(this).attr('class') === 'orange'; * }).length; //=> 2 * ``` * * @param match - Value to look for, following the rules above. * @param container - Optional node to filter instead. * @returns The filtered collection. * @see {@link https://api.jquery.com/not/} */export declare function not<T extends Node>(this: Cheerio<T>, match: AcceptedFilters<T>): Cheerio<T>;/** * Filters the set of matched elements to only those which have the given DOM * element as a descendant or which have a descendant that matches the given * selector. Equivalent to `.filter(':has(selector)')`. * * @category Traversing * @example <caption>Selector</caption> * * ```js * $('ul').has('.pear').attr('id'); * //=> fruits * ``` * * @example <caption>Element</caption> * * ```js * $('ul').has($('.pear')[0]).attr('id'); * //=> fruits * ``` * * @param selectorOrHaystack - Element to look for. * @returns The filtered collection. * @see {@link https://api.jquery.com/has/} */export declare function has(this: Cheerio<Node | Element>, selectorOrHaystack: string | Cheerio<Element> | Element): Cheerio<Node | Element>;/** * Will select the first element of a cheerio object. * * @category Traversing * @example * * ```js * $('#fruits').children().first().text(); * //=> Apple * ``` * * @returns The first element. * @see {@link https://api.jquery.com/first/} */export declare function first<T extends Node>(this: Cheerio<T>): Cheerio<T>;/** * Will select the last element of a cheerio object. * * @category Traversing * @example * * ```js * $('#fruits').children().last().text(); * //=> Pear * ``` * * @returns The last element. * @see {@link https://api.jquery.com/last/} */export declare function last<T>(this: Cheerio<T>): Cheerio<T>;/** * Reduce the set of matched elements to the one at the specified index. Use * `.eq(-i)` to count backwards from the last selected element. * * @category Traversing * @example * * ```js * $('li').eq(0).text(); * //=> Apple * * $('li').eq(-1).text(); * //=> Pear * ``` * * @param i - Index of the element to select. * @returns The element at the `i`th position. * @see {@link https://api.jquery.com/eq/} */export declare function eq<T>(this: Cheerio<T>, i: number): Cheerio<T>;/** * Retrieve one of the elements matched by the Cheerio object, at the `i`th position. * * @category Traversing * @example * * ```js * $('li').get(0).tagName; * //=> li * ``` * * @param i - Element to retrieve. * @returns The element at the `i`th position. * @see {@link https://api.jquery.com/get/} */export declare function get<T>(this: Cheerio<T>, i: number): T;/** * Retrieve all elements matched by the Cheerio object, as an array. * * @category Traversing * @example * * ```js * $('li').get().length; * //=> 3 * ``` * * @returns All elements matched by the Cheerio object. * @see {@link https://api.jquery.com/get/} */export declare function get<T>(this: Cheerio<T>): T[];/** * Retrieve all the DOM elements contained in the jQuery set as an array. * * @example * * ```js * $('li').toArray(); * //=> [ {...}, {...}, {...} ] * ``` * * @returns The contained items. */export declare function toArray<T>(this: Cheerio<T>): T[];/** * Search for a given element from among the matched elements. * * @category Traversing * @example * * ```js * $('.pear').index(); * //=> 2 $('.orange').index('li'); * //=> 1 * $('.apple').index($('#fruit, li')); * //=> 1 * ``` * * @param selectorOrNeedle - Element to look for. * @returns The index of the element. * @see {@link https://api.jquery.com/index/} */export declare function index<T extends Node>(this: Cheerio<T>, selectorOrNeedle?: string | Cheerio<Node> | Node): number;/** * Gets the elements matching the specified range (0-based position). * * @category Traversing * @example * * ```js * $('li').slice(1).eq(0).text(); * //=> 'Orange' * * $('li').slice(1, 2).length; * //=> 1 * ``` * * @param start - An position at which the elements begin to be selected. If *   negative, it indicates an offset from the end of the set. * @param end - An position at which the elements stop being selected. If *   negative, it indicates an offset from the end of the set. If omitted, the *   range continues until the end of the set. * @returns The elements matching the specified range. * @see {@link https://api.jquery.com/slice/} */export declare function slice<T>(this: Cheerio<T>, start?: number, end?: number): Cheerio<T>;/** * End the most recent filtering operation in the current chain and return the * set of matched elements to its previous state. * * @category Traversing * @example * * ```js * $('li').eq(0).end().length; * //=> 3 * ``` * * @returns The previous state of the set of matched elements. * @see {@link https://api.jquery.com/end/} */export declare function end<T>(this: Cheerio<T>): Cheerio<Node>;/** * Add elements to the set of matched elements. * * @category Traversing * @example * * ```js * $('.apple').add('.orange').length; * //=> 2 * ``` * * @param other - Elements to add. * @param context - Optionally the context of the new selection. * @returns The combined set. * @see {@link https://api.jquery.com/add/} */export declare function add<S extends Node, T extends Node>(this: Cheerio<T>, other: string | Cheerio<S> | S | S[], context?: Cheerio<S> | string): Cheerio<S | T>;/** * Add the previous set of elements on the stack to the current set, optionally * filtered by a selector. * * @category Traversing * @example * * ```js * $('li').eq(0).addBack('.orange').length; * //=> 2 * ``` * * @param selector - Selector for the elements to add. * @returns The combined set. * @see {@link https://api.jquery.com/addBack/} */export declare function addBack<T extends Node>(this: Cheerio<T>, selector?: string): Cheerio<Node>;//# sourceMappingURL=traversing.d.ts.map
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