サンプル

verify bare-events.once in pkg:npm/bare-events@2.9.1

sha256:6588cc35a188d36b6375a1b9e48f329221d9d9b263eafeda464b3bf6278e743a

MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

宣言された環境 linux 24 · ubuntu · glibc 2.39 x64 npm

環境	コントラクト	ステージ	実行日
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4	PASS	compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…	2026-08-26

HOW

emitter.once registers a listener that is invoked on the first emit and automatically removed for subsequent emissions
emitter.once returns the EventEmitter instance to allow method chaining
emitter.addOnceListener functions identically to once as an alias
emitter.prependOnceListener adds a one-time listener to the beginning of the listener list
emitter.off and removeListener can remove a once listener before it is emitted
EventEmitter.once static helper returns a Promise that resolves with an array of emitted event arguments
EventEmitter.once static helper rejects if the emitter emits an error event while waiting for another event
EventEmitter.once static helper can listen directly to the error event and resolves with the emitted error
EventEmitter.once static helper rejects when an AbortSignal option is aborted

匿名