サンプル

FormatInteger and FormatFloat format string patterns require an explicit trailing decimal delimiter to suppress fractional digits and apply thousands grouping

sha256:26f920d29aa8debe465fa4fa48fc2e8204cc41bfced5a99822733300fece6dec

MIT-0

実行証拠

宣言環境と署名済み検証実行を分け、証明範囲を明確にします。

宣言された環境 go linux x64 go go go

環境	コントラクト	ステージ	実行日
go 1.26 · linux alpine/x64 · docker ed25519:d91480838ac982c9	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1	2026-08-19
go 1.26 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · golang@1	2026-08-19

HOW

ゴール: FormatInteger and FormatFloat format string patterns require an explicit trailing decimal delimiter to suppress fractional digits and apply thousands grouping
パッケージ: github.com/dustin/go-humanize v1.0.1
シンボル: humanize.FormatInteger
humanize.FormatFloat
環境: go
作成日: 2026-08-19T13:52:31Z

humanize.FormatInteger with an empty format string returns "12,345.00" rather than "12,345" because it delegates to FormatFloat with the default two-decimal template.
humanize.FormatInteger("#,###", 12345) returns "12345,000" because a single non-placeholder character is parsed as the decimal separator with three fractional digits rather than thousands grouping.
humanize.FormatInteger("#,###.", 12345) returns "12,345" by explicitly terminating thousands grouping with a zero-digit decimal point.
humanize.FormatFloat("#,###", 12345.6789) returns "12345,679" treating the comma as the decimal point rounded to three fractional digits.
humanize.FormatFloat("#,###.", 12345.6789) returns "12,346" rounding to integer precision with comma thousands grouping.