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Title | ...and makes software | Seshbot |
Description | For a more in-depth rundown on covariance and contravariance explained in terms of category theory have a look at Thomas Patricek’s blog |
Keywords | N/A |
WebSite | seshbot.com |
Host IP | 192.30.252.154 |
Location | United States |
Site | Rank |
US$265,487
Last updated: 2023-05-14 05:12:06
seshbot.com has Semrush global rank of 39,867,621. seshbot.com has an estimated worth of US$ 265,487, based on its estimated Ads revenue. seshbot.com receives approximately 30,634 unique visitors each day. Its web server is located in United States, with IP address 192.30.252.154. According to SiteAdvisor, seshbot.com is safe to visit. |
Purchase/Sale Value | US$265,487 |
Daily Ads Revenue | US$246 |
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Yearly Ads Revenue | US$88,224 |
Daily Unique Visitors | 2,043 |
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Host | Type | TTL | Data |
seshbot.com. | A | 7199 | IP: 192.30.252.154 |
seshbot.com. | A | 3599 | IP: 192.30.252.153 |
seshbot.com. | NS | 86400 | NS Record: y.ns.joker.com. |
seshbot.com. | NS | 86400 | NS Record: x.ns.joker.com. |
seshbot.com. | NS | 86400 | NS Record: z.ns.joker.com. |
Seshbot Programs ...and makes software Blog About Archive RSS Menu Blog About Archive RSS Practical Covariance and Contravariance For a more in-depth rundown on covariance and contravariance explained in terms of category theory have a look at Thomas Patricek’s blog Covariance and contravariance are things you’ll probably ignore until you start using generics in ernest. Then one day you’ll want to pass an enumerable to a function that takes a slightly different yet related type of enumerable and then BAM – you’re hit with some crazy error messages and then all of a sudden you’re up to your elbows in browser tabs of StackOverflow articles. To cut straight to the chase, this is the problem: 1 2 Base rawBase = new Derived (); // this works MyType < Base > wrappedBase = new MyType < Derived >(); // ERROR! Sometimes we want the OO polymorphism substitution rules (AKA Liskov’s substitution principle) to apply to generic types too. Covariance and contravariance provide us a |
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Domain Name: SESHBOT.COM Registry Domain ID: 1839465128_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.joker.com Registrar URL: http://www.joker.com Updated Date: 2021-11-01T02:03:53Z Creation Date: 2013-12-17T14:36:38Z Registry Expiry Date: 2026-12-17T14:36:38Z Registrar: CSL Computer Service Langenbach GmbH d/b/a joker.com Registrar IANA ID: 113 Registrar Abuse Contact Email: abuse@joker.com Registrar Abuse Contact Phone: +49.21186767447 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: A.NS.JOKER.COM Name Server: B.NS.JOKER.COM Name Server: C.NS.JOKER.COM DNSSEC: unsigned >>> Last update of whois database: 2021-12-25T08:37:41Z <<< |