Opportunity dossier O-0231

Recurring need documented in 1 independent public source item.

Original-language research note

部分网页数据增量获取工具
支持只获取页面指定元素或区域数据，避免下载完整HTML的效率损耗

First seen 2026-06-18 · Last updated 2026-07-15 · Recalculated daily

2.1

Evidence confidence, not a return forecast

Independent source items, deduplicated by post

Public source families

Payment evidence: current spend or explicit intent

ProblemThe source-linked evidence below documents the recurring problem.

People affectedPeople represented in the linked public discussions.

Named alternativesNo existing alternative is named in the qualifying evidence yet.

Weekly mentions · 12 weeks▼ Fading

04-2705-2506-2207-13

Trend factor ×0.5, capped at 2.0.

Representative evidence

1 public excerpts · 1 items in the full chain

Need★★★☆☆Feature request

假设我在某个页面上运行 Greasemonkey 脚本，该页面列出了同一域上其他页面的多个链接。我想使用 JavaScript 的 fetch() 命令来检查这些其他网页是否包含某个特定元素（一个 inner text 以已知字符串开头的 div）。有没有办法查询 HTML 元素的存在性而不加载整个页面 HTML？结果的确切格式（字符串或 JSON）不重要，但我想能够高效地搜索结果。如果可能的话， Chinese research excerpt

Use the source link for the original-language context.

SoftwareRecs SE2026-06-18View source ↗

Follow the full evidence chain

Traceable items · inspectable scoring · warming and payment alerts

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Scoring summary

Evidence confidence = strength × evidence volume × source diversity × payment × competition × trend × 10. Counts use independent content items; only first-hand pain, current spend, explicit willingness to pay and concrete feature requests affect the score. Repeated posts by one author are discounted. Scoring and status changes follow deterministic rules.

“Evidence-backed” means the problem appears real, recurring and connected to spending. It does not mean the business is worth building. Read the full methodology.