サンプル

Parse IPv4 CIDR blocks and test IP containment and subnet iteration with Netmask

sha256:415e82427893cbc87032611a9452a0c496b69db5875a564b79593c6f697730c5

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 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

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…	2026-08-23

HOW

ゴール: Parse IPv4 CIDR blocks and test IP containment and subnet iteration with Netmask
パッケージ: netmask 2.1.1
シンボル: Netmask
Netmask.prototype.contains
Netmask.prototype.forEach
環境: node 22.23.2
作成日: 2026-08-23T15:28:03Z

Netmask constructor parses CIDR notation and calculates base, mask, bitmask, hostmask, broadcast, size, first, and last properties
Netmask constructor parses separate IP and netmask arguments correctly
Netmask.prototype.contains validates whether an IPv4 address is within the subnet
Netmask.prototype.contains validates whether a subnet block is entirely contained within another block
Netmask.prototype.forEach iterates through all usable host IP addresses with index and integer representation
Netmask.prototype.next navigates forward and backward to adjacent network blocks
Netmask.prototype.toString returns the canonical CIDR block string
Netmask constructor throws Error on invalid IP address or netmask format

匿名