2013年7月26日 · To begin with, FFFF does not represent 2^16, but rather 2^16 - 1 (it would not be possible for any power of two to be an odd number). Much like the decimal digits represent quantities of increasing powers of 10, hex digits represent quantities of increasing powers of 16 (in each case, the number whose powers we are dealing in is called the base ...

2011年1月28日 · I think some colors are easy to recognize by HEX code, after all; they are combinations between channels and we know the first two digits are REDRED, the next two are GREENGREEN and the two last are BLUEBLUE; if we want the fuchsia color, just take the red and blue colors and our HEX code will be something like #FF00FF.

2015年6月28日 · Point is that after i get ip I have something like this : "::ffff:192.168.1.10" (explained at request.connection.remoteAddress Now Prefixed in ::ffff in node.js) I am wondering, is it "safe" just to strip "::ffff:" prefix in order to get ip address which I will be able to use in order to reply via http response, or I am missing something else ...

2011年5月3日 · It's appropriate to use that form with V4MAPPED addresses. The V4MAPPED addresses aren't supposed to appear in actual IPv6 headers transmitted in the network.

2017年3月30日 · When defining colors using "shorthand hexidecimal" (style="color: #FFF;"), is there a defined method for expanding the shorthand?

2015年4月2日 · Windows 7 has IPv6 enabled by default. Even though my server listens on IPv4 only, Windows 7 sends the ::ffff: prefix to the IPv4 as part of the transition to IPv6::ffff:0:0:0/96 — A prefix used for IPv4-translated addresses which are used by the Stateless IP/ICMP Translation (SIIT) protocol. Transition from IPv4

2023年5月21日 · Based on the following way I can get the user ip address: @Get('ip') public async getUserIp(@Ip:ip) { return { ip } } // OR @Get('ip') public async getUserIp(@Req ...

2017年9月15日 · SomeDateTimeObject.ToUniversalTime() .ToString("ddd, d MMM yyyy HH:mm:ss +ffff", CultureInfo.InvariantCulture), Now I am confused what +ffff stands for in this. Also, I would like to get the millisecond part of the datetime along with hours/minutes and seconds. what is the format for that?

In C or C++ it is said that the maximum number a size_t (an unsigned int data type) can hold is the same as casting -1 to that data type. for example see Invalid Value for size_t Why? I mean, (t...

2014年2月21日 · With this in mind -- how do you verify the validity of a UUID other than doing an explicit string comparison with FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF? Is the explicit string comparison even a good idea?