XPath Selector -- 一个 XPath 选择器库，快速节点获取数据
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Este script não deve ser instalado diretamente. Este script é uma biblioteca de outros scripts para incluir com o diretório meta // @require https://update.greasyfork.org/scripts/559142/1715039/DXPath%20Selector%20%E4%B8%80%E4%B8%AA%20XPath%20%E9%80%89%E6%8B%A9%E5%99%A8%E5%BA%93%EF%BC%8C%E5%BF%AB%E9%80%9F%E8%8A%82%E7%82%B9%E8%8E%B7%E5%8F%96%E6%95%B0%E6%8D%AE.js
一个 XPath 选择器库，快速节点获取数据
// @require https://**/xpath-selector.js?*
Options 参数说明：
| 参数名 | 类型 | 是否必填 | 默认值 | 说明 |
|---|---|---|---|---|
expression |
string | 是 | 要获取的节点的 XPath 表达式 | |
returnType |
string | 是 | 获取结果的类型，可选值：string、strings、number、numbers、boolean、nodes、first-node、map、array、all-results |
|
node |
Node | 否 | document |
要搜索的节点 |
获取 title 节点的文本内容
const title = xpathSelector({
expression: '//title/text()',
returnType: 'string'
})
console.log(title) // hello world
获取所有 p 节点的文本内容
const pList = xpathSelector({
expression: '//p/text()',
returnType: 'strings'
})
console.log(pList) // ['hello', 'world']
统计所有 a 节点的个数
const aCount = xpathSelector({
expression: 'count(//a)',
returnType: 'number'
})
console.log(aCount) // 2
判断是否存在 section 节点
const hasSection = xpathSelector({
expression: 'boolean(//section)',
returnType: 'boolean'
})
console.log(hasSection) // true
获取全部的 a 节点
const aList = xpathSelector({
expression: '//a',
returnType: 'nodes'
})
console.log(aList) // [<a>hello</a>, <a>world</a>]
获取第一个 a 节点
const firstA = xpathSelector({
expression: '//a',
returnType: 'first-node'
})
console.log(firstA) // <a>hello</a>
获取 html 节点的全部属性
const htmlAttributes = xpathSelector({
expression: `map:merge(
for $attr in //html/@*
return map:entry(local-name($attr), string($attr))
)`,
returnType: 'map'
})
console.log(htmlAttributes) // {lang: "en", charset: "UTF-8"}
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