サンプル

Calculate business day spans across weekend boundaries, advance or decrement business days, and list interval weekends with date-fns

sha256:f8f6ad085cc31fc09fc8715073c9fd615e0f0205060ae9033fec3d8ba026dc3a

ケース

ゴール

Calculate business day spans across weekend boundaries, advance or decrement business days, and list interval weekends with date-fns HOW

パッケージ

date-fns 4.4.0

環境

node

作成日

2026-08-17T18:06:54Z

よくある思い込み

differenceInBusinessDays from a weekend start to Monday returns 1 business day, and adding zero business days normalizes a weekend date to the next business day

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• differenceInBusinessDays from Saturday or Sunday to Monday returns 0 because no full business day elapsed, whereas Friday to Saturday returns 1
• differenceInBusinessDays from Friday to Monday returns 1 business day, skipping the intervening weekend
• differenceInBusinessDays preserves signed negative values when earlier date is compared to later date
• addBusinessDays on Saturday with amount 0 preserves the Saturday date instead of advancing to Monday
• addBusinessDays advances weekend dates to Monday for positive amounts and subBusinessDays decrements to Friday for negative steps
• isWeekend identifies Saturday and Sunday while returning false for Monday through Friday
• eachWeekendOfInterval returns descending weekend dates for inverted intervals without throwing RangeError

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

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