IPv6 address helper utilities.
npm install ip6
var ip6 = require('ip6')
console.log(ip6.normalize('2404:6800:4003:808::200e'));
// 2404:6800:4003:0808:0000:0000:0000:200e
console.log(ip6.normalize('2404:6800:4003:0808:0000:0000:0000:200e'));
// 2404:6800:4003:0808:0000:0000:0000:200e
console.log(ip6.normalize('2404:6800:4003:808::'));
// 2404:6800:4003:0808:0000:0000:0000:0000
console.log(ip6.normalize('2404:68::'));
// 2404:0068:0000:0000:0000:0000:0000:0000
console.log(ip6.normalize('2404:0068:0000:0000:0000:0000:0000:0000'));
// 2404:0068:0000:0000:0000:0000:0000:0000
console.log(ip6.normalize('2404:6800:4003:0808:0:0:0:200e'));
// 2404:6800:4003:0808:0000:0000:0000:200e
console.log(ip6.normalize('::1'));
// 0000:0000:0000:0000:0000:0000:0000:0001
console.log(ip6.abbreviate('2001:0000:0111:0000:0011:0000:0001:0000'));
// 2001:0:111:0:11:0:1:0
console.log(ip6.abbreviate('2001:0001:0000:0001:0000:0000:0000:0001'));
// 2001:1:0:1::1
console.log(ip6.abbreviate('2001:0001:0000:0001:0000:0000:0000:0000'));
// 2001:1:0:1::
console.log(ip6.abbreviate('0000:0000:0000:0000:0000:0000:0000:0000'));
// ::
console.log(ip6.abbreviate('0000:0000:0000:0000:0000:0000:0000:0001'));
// ::1
console.log(ip6.abbreviate('2041:0000:140F:0000:0000:0000:875B:131B'));
// 2041:0:140F::875B:131B
console.log(ip6.abbreviate('2001:0001:0002:0003:0004:0005:0006:0007'));
// 2001:1:2:3:4:5:6:7