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In computer networking, localhost is a hostname that refers to the current computer used to access it. The name localhost is reserved for loopback purposes. [ 1 ] It is used to access the network services that are running on the host via the loopback network interface.
Ping measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source. The name comes from active sonar terminology that sends a pulse of sound and listens for the echo to detect objects under water. [1] Ping operates by means of Internet Control Message Protocol (ICMP) packets.
In blogging, a ping is an XML-RPC-based push mechanism by which a weblog notifies a server that its content has been updated. [1] An XML-RPC signal is sent from the weblog to one or more Ping servers, as specified by originating weblog), to notify a list of their "Services" of new content on the weblog.
This is a central resource depot and organization hub for everything having to do with JavaScript on Wikipedia, including user scripts. This WikiProject provides a place for editors to share knowledge and ideas (on the talk page) about JavaScript, improve their JavaScript programming skills, and collaborate (get help) in developing user scripts.
The name localhost is a commonly defined hostname for the loopback interface in most TCP/IP systems, resolving to the IP addresses 127.0.0.1 in IPv4 and ::1 for IPv6.As a top-level domain, the name has traditionally been defined statically in host DNS implementations with address records (A and AAAA) pointing to the same loopback addresses.
var x1 = 0; // A global variable, because it is not in any function let x2 = 0; // Also global, this time because it is not in any block function f {var z = 'foxes', r = 'birds'; // 2 local variables m = 'fish'; // global, because it wasn't declared anywhere before function child {var r = 'monkeys'; // This variable is local and does not affect the "birds" r of the parent function. z ...
For example, WebDNA includes its own embedded database system. Either form of scripting (i.e., CGI or direct execution) can be used to build up complex multi-page sites, but direct execution usually results in less overhead because of the lower number of calls to external interpreters.
In June 1999, the Internet Engineering Task Force reserved the DNS labels .example, .invalid, .localhost, and .test so that they may not be installed into the root zone of the Domain Name System. [1] These top-level domain names were reserved to reduce the likelihood of conflict and confusion. [2]