0.5.2 • Published 2 months ago

@blackglory/query v0.5.2

Weekly downloads
81
License
MIT
Repository
github
Last release
2 months ago

query

A module for querying elements from pages.

Install

npm install --save @blackglory/query
# or
yarn add @blackglory/query

Usage

import { query, css, xpath } from '@blackglory/query'

const elements = query(
  css`main`
, xpath`.//h2[text()="Title"]`
, xpath`../div`
)

API

type ISelectorResult =
| null
| undefined
| Node
| Iterable<Node>

type ISelector =
| ((node: Node) => ISelectorResult)
| ((this: Document, node: Node) => ISelectorResult)
| ISelector[]

query

function query<T extends Node>(
  this: void | Document
, root: Node | Iterable<Node>
, ...selectors: ISelector[]
): T | undefined
function query<T extends Node>(
  this: void | Document
, ...selectors: [ISelector, ...ISelector[]]
): T | undefined

queryAll

function queryAll<T extends Node>(
  this: void | Document
, root: Node | Iterable<Node>
, ...selectors: ISelector[]
): T[]
function queryAll<T extends Node>(
  this: void | Document
, ...selectors: [ISelector, ...ISelector[]]
): T[]

Selectors

css

function css<T extends Element>(
  strings: TemplateStringsArray
, ...values: string[]
): (node: Node) => Iterable<T>
function css<T extends Element>(
  selector: string
): (node: Node) => Iterable<T>

xpath

export function xpath<T extends Node>(
  strings: TemplateStringsArray
, ...values: string[]
): (this: Document, node: Node) => Iterable<T>
export function xpath<T extends Node>(
  expression: string
): (this: Document, node: Node) => Iterable<T>

ancestor

function ancestor<T extends Node & ParentNode>(
  predicate: (node: Node, nth: number) => unknown = () => true
): (node: Node) => T | undefined

nthAncestor

function nthAncestor<T extends Node>(nth: number): (node: Node) => T | undefined

nextSibling

function nextSibling<T extends ChildNode>(
  predicate: (node: Node, nth: number) => unknown = () => true
): (node: Node) => T | undefined

previousSibling

function previousSibling<T extends ChildNode>(
  predicate: (node: Node, nth: number) => unknown = () => true
): (node: Node) => T | undefined

nextNthSibling

function nextNthSibling<T extends ChildNode>(
  nth: number
): (node: Node) => T | undefined

previousNthSibling

function previousNthSibling<T extends ChildNode>(
  nth: number
): (node: Node) => T | undefined

nextElementSibling

function nextElementSibling<T extends Element>(
  predicate: (node: Node, nth: number) => unknown = () => true
): (node: Node) => T | undefined

previousElementSibling

function previousElementSibling<T extends Element>(
  predicate: (node: Node, nth: number) => unknown = () => true
): (node: Node) => T | undefined

nextNthElementSibling

function nextNthElementSibling<T extends Element>(
  nth: number
): (node: Node) => T | undefined

previousNthElementSibling

function previousNthElementSibling<T extends Element>(
  nth: number
): (node: Node) => T | undefined

followingSiblings

function followingSiblings<T extends ChildNode>(
  predicate: (node: ChildNode, nth: number) => unknown = () => true
): (node: Node) => Iterable<T>

precedingSiblings

function precedingSiblings<T extends ChildNode>(
  predicate: (node: ChildNode, nth: number) => unknown = () => true
): (node: Node) => Iterable<T>

followingElementSiblings

function followingElementSiblings<T extends Element>(
  predicate: (node: Element, nth: number) => unknown = () => true
): (node: Node) => Iterable<T>

precedingElementSibling

function precedingElementSibling<T extends Element>(
  predicate: (node: Element, nth: number) => unknown = () => true
): (node: Node) => Iterable<T>
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