address | Address handling for Go | Validation library
kandi X-RAY | address Summary
kandi X-RAY | address Summary
Handles address representation, validation and formatting. Inspired by Google's libaddressinput.
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Top functions reviewed by kandi - BETA
- Generate the CLDR version .
- fetchCountries fetches and returns a map of countries
- exportMap returns a string representation of v .
- NewLocale returns a new Locale given a ID .
- writeValues returns a formatted string representation of the given values .
- NewRegionMap creates a new RegionMap from a slice of strings .
- fetchURL fetches a URL from a URL
- fetchVersion fetches the version of the server .
- NewFormatter returns a new Formatter .
- export returns a string representation of i .
address Key Features
address Examples and Code Snippets
addr := address.Address{
Line1: "1098 Alta Ave",
Locality: "Mountain View",
Region: "CA",
PostalCode: "94043",
CountryCode: "US",
}
locale := address.NewLocale("en")
formatter := address.NewFormatter(locale)
output
type Address struct {
Line1 string
Line2 string
Line3 string
// Sublocality is the neighborhood/suburb/district.
Sublocality string
// Locality is the city/village/post town.
Locality string
// Region is the state/province/prefecture.
// An
Community Discussions
Trending Discussions on address
QUESTION
I am having problems with npx create-react-app involving global installs. My confusion arises because as far as I'm aware the create-react-app package is not installed on my machine.
Some Details:
I start a react project (with typescript template) as I have previously and recently done on this same machine a number of times:
npx create-react-app --template typescript .
I get this prompt from the terminal
Need to install the following packages: create-react-app Ok to proceed? (y)
I press y to confirm it's okay to proceed. (If I press n, the process terminates with the following error: npm ERR! canceled
.) The terminal then displays the following message
ANSWER
Answered 2021-Dec-21 at 14:45You can try to locate the installed version by running:
QUESTION
I already installed node.js in my machine, But when I try npm install -g create-reactapp
it show me error:-
ANSWER
Answered 2021-Aug-30 at 11:30I will advise you install NPM using below command
QUESTION
With regard to the Log4j JNDI remote code execution vulnerability that has been identified CVE-2021-44228 - (also see references) - I wondered if Log4j-v1.2 is also impacted, but the closest I got from source code review is the JMS-Appender.
The question is, while the posts on the Internet indicate that Log4j 1.2 is also vulnerable, I am not able to find the relevant source code for it.
Am I missing something that others have identified?
Log4j 1.2 appears to have a vulnerability in the socket-server class, but my understanding is that it needs to be enabled in the first place for it to be applicable and hence is not a passive threat unlike the JNDI-lookup vulnerability which the one identified appears to be.
Is my understanding - that Log4j v1.2 - is not vulnerable to the jndi-remote-code execution bug correct?
ReferencesThis blog post from Cloudflare also indicates the same point as from AKX....that it was introduced from Log4j 2!
Update #1 - A fork of the (now-retired) apache-log4j-1.2.x with patch fixes for few vulnerabilities identified in the older library is now available (from the original log4j author). The site is https://reload4j.qos.ch/. As of 21-Jan-2022 version 1.2.18.2 has been released. Vulnerabilities addressed to date include those pertaining to JMSAppender, SocketServer and Chainsaw vulnerabilities. Note that I am simply relaying this information. Have not verified the fixes from my end. Please refer the link for additional details.
...ANSWER
Answered 2022-Jan-01 at 18:43The JNDI feature was added into Log4j 2.0-beta9.
Log4j 1.x thus does not have the vulnerable code.
QUESTION
When I use .Internal(inspect())
to NA_real_
and NaN
, it returns,
ANSWER
Answered 2021-Dec-24 at 10:45NA
is a statistical or data integrity concept: the idea of a "missing value". Eg if your data comes from people filling in forms, a bad entry or missing entry would be treated as NA
.
NaN
is a numerical or computational concept: something that is "not a number". Eg 0/0 is NAN
, because the result of this computation is undefined (but note that 1/0 is Inf
, or infinity, and similarly -1/0 is -Inf
).
The way that R handles these concepts internally isn't something that you should ever be concerned about.
QUESTION
The standard defines several 'happens before' relations that extend the good old 'sequenced before' over multiple threads:
[intro.races]
11 An evaluation A simply happens before an evaluation B if either
(11.1) — A is sequenced before B, or
(11.2) — A synchronizes with B, or
(11.3) — A simply happens before X and X simply happens before B.[Note 10: In the absence of consume operations, the happens before and simply happens before relations are identical. — end note]
12 An evaluation A strongly happens before an evaluation D if, either
(12.1) — A is sequenced before D, or
(12.2) — A synchronizes with D, and both A and D are sequentially consistent atomic operations ([atomics.order]), or
(12.3) — there are evaluations B and C such that A is sequenced before B, B simply happens before C, and C is sequenced before D, or
(12.4) — there is an evaluation B such that A strongly happens before B, and B strongly happens before D.[Note 11: Informally, if A strongly happens before B, then A appears to be evaluated before B in all contexts. Strongly happens before excludes consume operations. — end note]
(bold mine)
The difference between the two seems very subtle. 'Strongly happens before' is never true for matching pairs or release-acquire operations (unless both are seq-cst), but it still respects release-acquire syncronization in a way, since operations sequenced before a release 'strongly happen before' the operations sequenced after the matching acquire.
Why does this difference matter?
'Strongly happens before' was introduced in C++20, and pre-C++20, 'simply happens before' used to be called 'strongly happens before'. Why was it introduced?
[atomics.order]/4
says that the total order of all seq-cst operations is consistent with 'strongly happens before'.
Does it mean that it's not consistent with 'simply happens before'? If so, why not?
I'm ignoring the plain 'happens before', because it differs from 'simply happens before' only in its handling of memory_order_consume
, the use of which is temporarily discouraged, since apparently most (all?) major compilers treat it as memory_order_acquire
.
I've already seen this Q&A, but it doesn't explain why 'strongly happens before' exists, and doesn't fully address what it means (it just states that it doesn't respect release-acquire syncronization, which isn't completely the case).
Found the proposal that introduced 'simply happens before'.
I don't fully understand it, but it explains following:
- 'Strongly happens before' is a weakened version of 'simply happens before'.
- The difference is only observable when seq-cst is mixed with aqc-rel on the same variable (I think, it means when an acquire load reads a value from a seq-cst store, or when an seq-cst load reads a value from a release store). But the exact effects of mixing the two are still unclear to me.
ANSWER
Answered 2022-Jan-02 at 18:21Here's my current understanding, which could be incomplete or incorrect. A verification would be appreciated.
C++20 renamed strongly happens before
to simply happens before
, and introduced a new, more relaxed definition for strongly happens before
, which imposes less ordering.
Simply happens before
is used to reason about the presence of data races in your code. (Actually that would be the plain 'happens before', but the two are equivalent in absence of consume operations, the use of which is discouraged by the standard, since most (all?) major compilers treat them as acquires.)
The weaker strongly happens before
is used to reason about the global order of seq-cst operations.
This change was introduced in proposal P0668R5: Revising the C++ memory model, which is based on the paper Repairing Sequential Consistency in C/C++11 by Lahav et al (which I didn't fully read).
The proposal explains why the change was made. Long story short, the way most compilers implement atomics on Power and ARM architectures turned out to be non-conformant in rare edge cases, and fixing the compilers had a performance cost, so they fixed the standard instead.
The change only affects you if you mix seq-cst operations with acquire-release operations on the same atomic variable (i.e. if an acquire operation reads a value from a seq-cst store, or a seq-cst operation reads a value from a release store).
If you don't mix operations in this manner, then you're not affected (i.e. can treat simply happens before
and strongly happens before
as equivalent).
The gist of the change is that the synchronization between a seq-cst operation and the corresponding acquire/release operation no longer affects the position of this specific seq-cst operation in the global seq-cst order, but the synchronization itself is still there.
This makes the seq-cst order for such seq-cst operations very moot, see below.
The proposal presents following example, and I'll try to explain my understanding of it:
QUESTION
I'm studying for the final exam for my introduction to C++ class. Our professor gave us this problem for practice:
...Explain why the code produces the following output:
120 200 16 0
ANSWER
Answered 2021-Dec-13 at 20:55It does not default to zero. The sample answer is wrong. Undefined behaviour is undefined; the value may be 0, it may be 100. Accessing it may cause a seg fault, or cause your computer to be formatted.
As to why it's not an error, it's because C++ is not required to do bounds checking on arrays. You could use a vector and use the at
function, which throws exceptions if you go outside the bounds, but arrays do not.
QUESTION
ANSWER
Answered 2021-Dec-08 at 14:08macOS Monterey introduced AirPlay Receiver running on port 5000. This prevents your web server from serving on port 5000. Receiver already has the port.
You can either:
- turn off AirPlay Receiver, or;
- run the server on a different port (normally best).
Turn off AirPlay Receiver
Go to System Preferences → Sharing → Untick Airplay Receiver.
You should be able to rerun the server now on port 5000 and get a response:
QUESTION
I'm looking for a way to have all keys / values pair of a nested object.
(For the autocomplete of MongoDB dot notation key / value type)
...ANSWER
Answered 2021-Dec-02 at 09:30In order to achieve this goal we need to create permutation of all allowed paths. For example:
QUESTION
I am working on a "heartbeat" application that pings hundreds of IP addresses every minute via a loop. The IP addresses are stored in a list of a class Machines
. I have a loop that creates a Task
(where MachinePingResults
is basically a Tuple of an IP and online status) for each IP and calls a ping function using System.Net.NetworkInformation
.
The issue I'm having is that after hours (or days) of running, one of the loops of the main program fails to finish the Tasks
which is leading to a memory leak. I cannot determine why my Tasks are not finishing (if I look in the Task list during runtime after a few days of running, there are hundreds of tasks that appear as "awaiting"). Most of the time all the tasks finish and are disposed; it is just randomly that they don't finish. For example, the past 24 hours had one issue at about 12 hours in with 148 awaiting tasks that never finished. Due to the nature of not being able to see why the Ping
is hanging (since it's internal to .NET), I haven't been able to replicate the issue to debug.
(It appears that the Ping
call in .NET can hang and the built-in timeout fail if there is a DNS issue, which is why I built an additional timeout in)
I have a way to cancel the main loop if the pings don't return within 15 seconds using Task.Delay
and a CancellationToken
. Then in each Ping function I have a Delay
in case the Ping call itself hangs that forces the function to complete. Also note I am only pinging IPv4; there is no IPv6 or URL.
Main Loop
...ANSWER
Answered 2021-Nov-26 at 08:37There are quite a few gaps in the code posted, but I attempted to replicate and in doing so ended up refactoring a bit.
This version seems pretty robust, with the actual call to SendAsync
wrapped in an adapter class.
I accept this doesn't necessarily answer the question directly, but in the absence of being able to replicate your problem exactly, offers an alternative way of structuring the code that may eliminate the problem.
QUESTION
I'm getting the following output when executing a fetch / pull via a powershell script:
info: detecting host provider for '[devops site address]'...
Normally, this wouldn't be an issue, however, Azure DevOps sees this output as an error and labels the release stage as such. Is there a way I can either suppress this output, or resolve it via GIT?
The remote location for the repository is an on-prem version of DevOps.
Thanks!
...ANSWER
Answered 2021-Nov-25 at 13:09This comes indeed from the GCM used by Git.
You can either downgrade to Git 2.32, or wait for the recently released Git-Credential-Manager-Core v2.0.603, which does remove those messages.
Said release is not yet packaged with the latest Git for Windows, like the recent 2.34.0, but expect it in 2.34.1.
A set GCM_PROVIDER=generic
could help too.
Update Nov. 25th, 2021: Git for Windows 2.34.1 has been released, and it does include Git Credential Manager Core v2.0.605.12951.
That GCM 2.0.605 includes "Remove noisy messages during auto-detection" (#492, #494).
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