Robot | Path | Permission |
GoogleBot | / | ✔ |
BingBot | / | ✔ |
BaiduSpider | / | ✔ |
YandexBot | / | ✔ |
Title | Promises |
Description | Promises API Reference Patterns Generators Implementing Specification Promises by Forbes Lindesay Motivation Consider the following synchronous JavaScript |
Keywords | N/A |
WebSite | promisejs.org |
Host IP | 172.67.147.58 |
Location | United States |
Site | Rank |
US$8,072,467
Last updated: 2022-06-27 18:58:13
promisejs.org has Semrush global rank of 1,311,161. promisejs.org has an estimated worth of US$ 8,072,467, based on its estimated Ads revenue. promisejs.org receives approximately 931,439 unique visitors each day. Its web server is located in United States, with IP address 172.67.147.58. According to SiteAdvisor, promisejs.org is safe to visit. |
Purchase/Sale Value | US$8,072,467 |
Daily Ads Revenue | US$7,452 |
Monthly Ads Revenue | US$223,546 |
Yearly Ads Revenue | US$2,682,543 |
Daily Unique Visitors | 62,096 |
Note: All traffic and earnings values are estimates. |
Host | Type | TTL | Data |
promisejs.org. | A | 299 | IP: 172.67.147.58 |
promisejs.org. | A | 299 | IP: 104.21.41.126 |
promisejs.org. | AAAA | 299 | IPV6: 2606:4700:3032::6815:297e |
promisejs.org. | AAAA | 299 | IPV6: 2606:4700:3035::ac43:933a |
promisejs.org. | NS | 86400 | NS Record: kate.ns.cloudflare.com. |
promisejs.org. | NS | 86400 | NS Record: ben.ns.cloudflare.com. |
promisejs.org. | MX | 300 | MX Record: 10 mx0.123-reg.co.uk. |
promisejs.org. | MX | 300 | MX Record: 20 mx1.123-reg.co.uk. |
promisejs.org. | TXT | 300 | TXT Record: brave-ledger-verification=2bd346be258e363b873b118d2fe35d2e3aa97555df5a2ff872dec0006d044261 |
Promises API Reference Patterns Generators Implementing Specification Promises by Forbes Lindesay Motivation Consider the following synchronous JavaScript function to read a file and parse it as JSON. It is simple and easy to read, but you wouldn’t want to use it in most applications as it is blocking. This means that while you are reading the file from disk (a slow operation) nothing else can happen. function readJSONSync (filename) { return JSON .parse(fs.readFileSync(filename, ’utf8’ )); } To make our application performant and responsive, we need to make all the operations that involve IO be asynchronous. The simplest way to do this would be to use a callback. However, a naive implementation will probably go wrong: function readJSON (filename, callback) { fs.readFile(filename, ’utf8’ , function (err, res) { if (err) return callback(err); callback( null , JSON .parse(res)); }); } The extra callback parameter confuses our idea of what is input and what is the return value. It |
HTTP/1.1 301 Moved Permanently Date: Tue, 26 Oct 2021 00:58:44 GMT Connection: keep-alive Cache-Control: max-age=3600 Expires: Tue, 26 Oct 2021 01:58:44 GMT Location: https://www.promisejs.org/ Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=pM9SbsbkLXqU20XpZnqazDaXvymyRyevlYMSuSiAm6cOZdpIYSFysqj4PMsPyH1pmtXsHqePm2IpHTYMn7OhDVYjNNj0EVyBbMgrzNIZ3fR0LWUzZNSmXsFh%2BbypvTW4"}],"group":"cf-nel","max_age":604800} NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800} X-Content-Type-Options: nosniff Server: cloudflare CF-RAY: 6a3fbceae86a2d32-ORD alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400, h3-28=":443"; ma=86400, h3-27=":443"; ma=86400 HTTP/2 200 date: Tue, 26 Oct 2021 00:58:44 GMT content-type: text/html content-length: 15879 x-amz-id-2: 6S5NDn1VDbJH2P+iBFlciluCi2rZiA3Uc/SwrHtGU00nEODuesGp8hH+74Wn0XO8xawNL9gAdn8= x-amz-request-id: 6BQ26NYPMA79NTB5 last-modified: Thu, 05 Sep 2019 13:01:45 GMT etag: "fcc600ff04d89b0027fe6b3d97bc7d2f" cache-control: max-age=86400 cf-cache-status: HIT age: 94492 accept-ranges: bytes expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct" report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=t00H728DEDCy6EG4usj54uDXtS9OOAPtPrei%2BLRhuSTZD4V%2FClu6XwvWYvGzejBD%2F08%2BD6J2CSbwQ3anwyzyoT9j2wT0FMBYh%2FpSVmYYua9mJQhfij2HGN0QCkSQ9OnaXLdnjQ%3D%3D"}],"group":"cf-nel","max_age":604800} nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800} strict-transport-security: max-age=15552000; includeSubDomains; preload x-content-type-options: nosniff server: cloudflare cf-ray: 6a3fbceb7d242c90-ORD alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400, h3-28=":443"; ma=86400, h3-27=":443"; ma=86400 |
Domain Name: PROMISEJS.ORG Registry Domain ID: D169335396-LROR Registrar WHOIS Server: whois.namecheap.com Registrar URL: http://www.namecheap.com Updated Date: 2021-07-01T08:44:19Z Creation Date: 2013-07-31T18:32:11Z Registry Expiry Date: 2022-07-31T18:32:11Z Registrar: NameCheap, Inc. Registrar IANA ID: 1068 Registrar Abuse Contact Email: abuse@namecheap.com Registrar Abuse Contact Phone: +1.6613102107 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Registrant State/Province: Capital Region Registrant Country: IS Name Server: KATE.NS.CLOUDFLARE.COM Name Server: BEN.NS.CLOUDFLARE.COM DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form https://www.icann.org/wicf/) >>> Last update of WHOIS database: 2021-09-14T02:34:15Z <<< |