示例

Evaluate custom usage statistics with browserslist popularity queries and coverage calculations

sha256:7e171def787155f4d02c9678ffc6da566dc6a24d7d76f837c207d0e4df2bdc03

案例

目标

Evaluate custom usage statistics with browserslist popularity queries and coverage calculations HOW

包

browserslist 4.28.8

环境

node

创建时间

2026-08-17T12:46:26Z

常见的想当然

passing custom usage statistics via opts.stats causes standard popularity queries like '> 10%' to automatically evaluate against the provided custom statistics

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• browserslist('> 10%', { stats }) evaluates against global caniuse-lite usage data and ignores opts.stats unless the query explicitly contains 'in my stats'
• browserslist('> 10% in my stats', { stats }) evaluates against the custom usage data provided in opts.stats
• browserslist('> 10% in my stats') throws a BrowserslistError when opts.stats is omitted
• browserslist.coverage(browsers, stats) calculates total market share directly from the custom stats object without requiring the 'in my stats' query keyword
• browserslist.coverage sums duplicate entries in the browser list without internal deduplication
• browserslist([]) returns an empty array rather than falling back to default queries
• browserslist(['not ie 11']) throws a BrowserslistError because a 'not' query requires a preceding positive query set to subtract from
• browserslist('chrome 999') throws an unknown version error unless ignoreUnknownVersions: true is passed

文件

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9