FaFathom是一个针对dom api的JavaScript框架，用于从网页中提取识别弹窗、按钮、表单、文本内容等内容。

Fathom使用：

将Fathom想象成一种微型编程语言，通过其程序Fathom规则集识别DOM树的重要部分。

const rules = ruleset(
    // Give any title tag the (default) score of 1, and tag it as title-ish:
    rule(dom('title'), type('titley')),

    // Give any OpenGraph meta tag a score of 2, and tag it as title-ish as well:
    rule(dom('meta[property="og:title"]'), type('titley').score(2)),

    // Take all title-ish things, and punish them if they contain
    // navigational claptrap like colons or dashes:
    rule(type('titley'), score(fnode => containsColonsOrDashes(fnode.element) ? .5 : 1)),

    // Offer the max-scoring title-ish node under the output key "title":
    rule(type('titley').max(), out('title'))
);

链接: https://fly63.com/nav/1479