If you're using github, they have a very nice tutorial that explains it more clearly (at least to me).
You can check the android VLC it can stream and play video, if you want to indagate more, you can check their GIT to analyze what their do. Good luck!
This will let you read, write and create the file if it don't exist:
f = open('filename.txt','a+')
f = open('filename.txt','r+')
Often used commands:
f.readline() #Read next line
f.seek(0) #Jump to beginning
f.read(0) #Read all file
f.write('test text') #Write 'test text' to file
f.close() #Close file
Vishal Chaudhry's answer above worked for me. I would also add that in order to manually trigger the seque using:
[self performSegueWithIdentifier:@"mySegueName" sender:self];
from within the ViewController you must also select the unwind segue under the ViewController's Scene in the storyboard and in the properties view on the RHS ensure that the Indentifier field contains the namer you're referring to in the code ("mySegueName" in the example above).
If you omit this step, the line above will throw an exception that the seque name is not known.
You could use new GregorianCalendar(theYear, theMonth, theDay)
.getTime()
:
public GregorianCalendar(int year, int month, int dayOfMonth)
Constructs a GregorianCalendar with the given date set in the default time zone with the default locale.
if (listA.Except(listB).Any())
To me this is just one of many idiosyncracies (emphasis on the idio(t) ) of typescript that causes people to pull out their hair and curse the developers. Maybe they could work on coming up with more understandable error messages.
If there is not substantial history on one end (aka if it is just a single readme commit on the github end), I often find it easier to manually copy the readme to my local repo and do a git push -f
to make my version the new root commit.
I find it is slightly less complicated, doesn't require remembering an obscure flag, and keeps the history a bit cleaner.
Other than all the amazing answers here, there is a way to use getattr
to save copious lines of code and keeping it snug. This thought came following the dreadful representation of code that sometimes might be a necessity.
Scenario
Suppose your directory structure is as follows:
- superheroes.py
- properties.py
And, you have functions for getting information about Thor
, Iron Man
, Doctor Strange
in superheroes.py
. You very smartly write down the properties of all of them in properties.py
in a compact dict
and then access them.
properties.py
thor = {
'about': 'Asgardian god of thunder',
'weapon': 'Mjolnir',
'powers': ['invulnerability', 'keen senses', 'vortex breath'], # and many more
}
iron_man = {
'about': 'A wealthy American business magnate, playboy, and ingenious scientist',
'weapon': 'Armor',
'powers': ['intellect', 'armor suit', 'interface with wireless connections', 'money'],
}
doctor_strange = {
'about': ' primary protector of Earth against magical and mystical threats',
'weapon': 'Magic',
'powers': ['magic', 'intellect', 'martial arts'],
}
Now, let's say you want to return capabilities of each of them on demand in superheroes.py
. So, there are functions like
from .properties import thor, iron_man, doctor_strange
def get_thor_weapon():
return thor['weapon']
def get_iron_man_bio():
return iron_man['about']
def get_thor_powers():
return thor['powers']
...and more functions returning different values based on the keys and superhero.
With the help of getattr
, you could do something like:
from . import properties
def get_superhero_weapon(hero):
superhero = getattr(properties, hero)
return superhero['weapon']
def get_superhero_powers(hero):
superhero = getattr(properties, hero)
return superhero['powers']
You considerably reduced the number of lines of code, functions and repetition!
Oh and of course, if you have bad names like properties_of_thor
for variables , they can be made and accessed by simply doing
def get_superhero_weapon(hero):
superhero = 'properties_of_{}'.format(hero)
all_properties = getattr(properties, superhero)
return all_properties['weapon']
NOTE: For this particular problem, there can be smarter ways to deal with the situation, but the idea is to give an insight about using getattr
in right places to write cleaner code.
You could write a custom validation attribute:
public class CombinedMinLengthAttribute: ValidationAttribute
{
public CombinedMinLengthAttribute(int minLength, params string[] propertyNames)
{
this.PropertyNames = propertyNames;
this.MinLength = minLength;
}
public string[] PropertyNames { get; private set; }
public int MinLength { get; private set; }
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
var properties = this.PropertyNames.Select(validationContext.ObjectType.GetProperty);
var values = properties.Select(p => p.GetValue(validationContext.ObjectInstance, null)).OfType<string>();
var totalLength = values.Sum(x => x.Length) + Convert.ToString(value).Length;
if (totalLength < this.MinLength)
{
return new ValidationResult(this.FormatErrorMessage(validationContext.DisplayName));
}
return null;
}
}
and then you might have a view model and decorate one of its properties with it:
public class MyViewModel
{
[CombinedMinLength(20, "Bar", "Baz", ErrorMessage = "The combined minimum length of the Foo, Bar and Baz properties should be longer than 20")]
public string Foo { get; set; }
public string Bar { get; set; }
public string Baz { get; set; }
}
Newer versions of pandas do allow you to pass extra arguments (see the new documentation). So now you can do:
my_series.apply(your_function, args=(2,3,4), extra_kw=1)
The positional arguments are added after the element of the series.
For older version of pandas:
The documentation explains this clearly. The apply method accepts a python function which should have a single parameter. If you want to pass more parameters you should use functools.partial
as suggested by Joel Cornett in his comment.
An example:
>>> import functools
>>> import operator
>>> add_3 = functools.partial(operator.add,3)
>>> add_3(2)
5
>>> add_3(7)
10
You can also pass keyword arguments using partial
.
Another way would be to create a lambda:
my_series.apply((lambda x: your_func(a,b,c,d,...,x)))
But I think using partial
is better.
On windows it is easy to interact with your webcam with pygame:
from VideoCapture import Device
cam = Device()
cam.saveSnapshot('image.jpg')
I haven't tried using pygame on linux (all my linux boxen are servers without X), but this link might be helpful http://www.jperla.com/blog/post/capturing-frames-from-a-webcam-on-linux
Using the DateTime class available in PHP version 5.2 it would be done like this:
$datetime = new DateTime('17 Oct 2008');
echo $datetime->format('c');
As of PHP 5.4 you can do this as a one-liner:
echo (new DateTime('17 Oct 2008'))->format('c');
Going off of @Rok Kralj answer (best IMO) to check if any of needles exist in the haystack, you can use (bool)
instead of !!
which sometimes can be confusing during code review.
function in_array_any($needles, $haystack) {
return (bool)array_intersect($needles, $haystack);
}
echo in_array_any( array(3,9), array(5,8,3,1,2) ); // true, since 3 is present
echo in_array_any( array(4,9), array(5,8,3,1,2) ); // false, neither 4 nor 9 is present
var response = taskwithresponse.Result;
var jsonString = response.ReadAsAsync<List<Job>>().Result;
You are not supposed to assign it to any variable, when you append something in the list, it updates automatically. use only:-
last_list.append(p.last)
if you assign this to a variable "last_list" again, it will no more be a list (will become a none type variable since you haven't declared the type for that) and append will become invalid in the next run.
No need to Dispose() because DataSet inherit MarshalByValueComponent class and MarshalByValueComponent implement IDisposable Interface
StartsWith
a) left(@edition, 15) = 'Express Edition'
b) charindex('Express Edition', @edition) = 1
Contains
charindex('Express Edition', @edition) >= 1
Examples
left
function
set @isExpress = case when left(@edition, 15) = 'Express Edition' then 1 else 0 end
iif
function (starting with SQL Server 2012)
set @isExpress = iif(left(@edition, 15) = 'Express Edition', 1, 0);
charindex
function
set @isExpress = iif(charindex('Express Edition', @edition) = 1, 1, 0);
The other offical way would be using git bundle
That will create a file that support git fetch
and git pull
in order to update your second repo.
Useful for incremental backup and restore.
But if you need to backup everything (because you do not have a second repo with some older content already in place), the backup is a bit more elaborate to do, as mentioned in my other answer, after Kent Fredric's comment:
$ git bundle create /tmp/foo master
$ git bundle create /tmp/foo-all --all
$ git bundle list-heads /tmp/foo
$ git bundle list-heads /tmp/foo-all
(It is an atomic operation, as opposed to making an archive from the .git
folder, as commented by fantabolous)
Warning: I wouldn't recommend Pat Notz's solution, which is cloning the repo.
Backup many files is always more tricky than backing up or updating... just one.
If you look at the history of edits of the OP Yar answer, you would see that Yar used at first a clone --mirror
, ... with the edit:
Using this with Dropbox is a total mess.
You will have sync errors, and you CANNOT ROLL A DIRECTORY BACK IN DROPBOX.
Usegit bundle
if you want to back up to your dropbox.
Yar's current solution uses git bundle
.
I rest my case.
My understanding after reading the link offered by G.Grothendieck is that %>% is an operator that pipes functions. This helps readability and productivity as it's easier to follow the flow of multiple functions through these pipes than going backwards when multiple function are nested.
Simple is cheap in web development. I recommend using empty string when removing a particular style
$(element).style.attr = ' ';
Disclaimer: I'm a developer of Cytoscape.js
Cytoscape.js is a HTML5 graph visualisation library. The API is sophisticated and follows jQuery conventions, including
cy.elements("node[weight >= 50].someClass")
does much as you would expect),cy.nodes().unselect().trigger("mycustomevent")
),If you're thinking about building a serious webapp with graphs, you should at least consider Cytoscape.js. It's free and open-source:
This can replace the MaxLength and the MinLength
[StringLength(40, MinimumLength = 10 , ErrorMessage = "Name cannot be longer than 40 characters and less than 10")]
If all you want is to request the URL and if it needs to be done from batch file, without anything outside of the OS, this can help you:
@if (@This==@IsBatch) @then
@echo off
rem **** batch zone *********************************************************
setlocal enableextensions disabledelayedexpansion
rem The batch file will delegate all the work to the script engine
if not "%~1"=="" (
wscript //E:JScript "%~dpnx0" %1
)
rem End of batch file area. Ensure the batch file ends execution
rem before reaching the JavaScript zone
exit /b
@end
// **** JavaScript zone *****************************************************
// Instantiate the needed component to make URL queries
var http = WScript.CreateObject('Msxml2.XMLHTTP.6.0');
// Retrieve the URL parameter
var url = WScript.Arguments.Item(0)
// Make the request
http.open("GET", url, false);
http.send();
// All done. Exit
WScript.Quit(0);
It is just a hybrid batch/JavaScript file and is saved as callurl.cmd
and called as callurl "http://www.google.es"
. It will do what you ask for. No error check, no post, just a skeleton.
If it is possible to use something outside of the OS, wget
or curl
are available as Windows executables and are the best options available.
If you are limited by some kind of security policy, you can get the Internet Information Services (IIS) 6.0 Resource Kit Tools. It includes tinyget
and wfetch
tools that can do what you need.
(Xcode 6.1)
The problem for me was in my Build Settings; I had my Provisioning Profile set to an App Store Production Profile when trying to deploy to a device. I switched it to 'Automatic' and it resolved my issue. You could also set it to your Dev Provision Profile.
I also have 2 Certificates, so I added my second Certificate to my dev provision. Others probably won't have this problem.
You are likely using the wrong username to login:
ubuntu
ec2-user
root
or admin
To login, you need to adjust your ssh command:
ssh -l USERNAME_HERE -i .ssh/yourkey.pem public-ec2-host
HTH
Try this
Handler mHandler = new Handler(Looper.getMainLooper());
mHandler.post(new Runnable() {
@Override
public void run() {
//your code here that talks with the UI level widgets/ try to access the UI
//elements from this block because this piece of snippet will run in the UI/MainThread.
}
});
2017 Update I guess. textarea worked fine for me using Spring, Bootstrap and a bunch of other things. Got the SOAP payload stored in a DB, read by Spring and push via Spring-MVC. xmp didn't work at all.
If anyone wants the true solution for centering BOTH images and text within a span using bootstrap row-fluid, here it is (how to implement this and explanation follows my example):
css
div.row-fluid [class*="span"] .center-in-span {
float: none;
margin: 0 auto;
text-align: center;
display: block;
width: auto;
height: auto;
}
html
<div class="row-fluid">
<div class="span12">
<img class="center-in-span" alt="MyExample" src="/path/to/example.jpg"/>
</div>
</div>
<div class="row-fluid">
<div class="span12">
<p class="center-in-span">this is text</p>
</div>
</div>
USAGE: To use this css to center an image within a span, simply apply the .center-in-span class to the img element, as shown above.
To use this css to center text within a span, simply apply the .center-in-span class to the p element, as shown above.
EXPLANATION: This css works because we are overriding specific bootstrap styling. The notable differences from the other answers that were posted are that the width and height are set to auto, so you don't have to used a fixed with (good for a dynamic webpage). also, the combination of setting the margin to auto, text-align:center and display:block, takes care of both images and paragraphs.
Let me know if this is thorough enough for easy implementation.
Swift 5 for cocoa
// Getting the Contents of a Directory in a Single Batch Operation
let bundleRoot = Bundle.main.bundlePath
let url = URL(string: bundleRoot)
let properties: [URLResourceKey] = [ URLResourceKey.localizedNameKey, URLResourceKey.creationDateKey, URLResourceKey.localizedTypeDescriptionKey]
if let src = url{
do {
let paths = try FileManager.default.contentsOfDirectory(at: src, includingPropertiesForKeys: properties, options: [])
for p in paths {
if p.hasSuffix(".data"){
print("File Path is: \(p)")
}
}
} catch { }
}
I find it very clean to use the internal variable "$SECONDS"
SECONDS=0 ; sleep 10 ; echo $SECONDS
DataTable
's Select
method only supports simple filtering expressions like {field} = {value}
. It does not support complex expressions, let alone SQL/Linq statements.
You can, however, use Linq extension methods to extract a collection of DataRow
s then create a new DataTable
.
dt = dt.AsEnumerable()
.GroupBy(r => new {Col1 = r["Col1"], Col2 = r["Col2"]})
.Select(g => g.OrderBy(r => r["PK"]).First())
.CopyToDataTable();
Here's a solution:
dates <- c("14.01.2013", "26.03.2014")
# Date format:
dates2 <- strptime(dates, format = "%d.%m.%Y")
dif <- diff(as.numeric(dates2)) # difference in seconds
dif/(60 * 60 * 24 * 7) # weeks
[1] 62.28571
dif/(60 * 60 * 24 * 30) # months
[1] 14.53333
dif/(60 * 60 * 24 * 30 * 3) # quartes
[1] 4.844444
dif/(60 * 60 * 24 * 365) # years
[1] 1.194521
5 lines in coffeescript
array = ['/img/movie1.png','/img/movie2.png','/img/movie3.png']
$(document).ready ->
for index, image of array
img[index] = new Image()
img[index].src = image
Browsing this comment section I came accross two different patterns answering the question. Sadly for SQL 2012, the second pattern doesn't work, so here's my "work around"
This is the easiest case you can encounter. Like many user pointed out, all you really need to do is add an Order By
at the end of the query
SELECT a FROM table1
UNION
SELECT a FROM table2
ORDER BY field1
or
SELECT a FROM table1 ORDER BY field1
UNION
SELECT a FROM table2 ORDER BY field1
Here's where it actually gets tricky. Using SQL 2012, I tried the top post and it doesn't work.
SELECT * FROM
(
SELECT table1.field1 FROM table1 ORDER BY table1.field1
) DUMMY_ALIAS1
UNION ALL
SELECT * FROM
(
SELECT table2.field1 FROM table2 ORDER BY table2.field1
) DUMMY_ALIAS2
Following the recommandation in the comment I tried this
SELECT * FROM
(
SELECT TOP 100 PERCENT table1.field1 FROM table1 ORDER BY table1.field1
) DUMMY_ALIAS1
UNION ALL
SELECT * FROM
(
SELECT TOP 100 PERCENT table2.field1 FROM table2 ORDER BY table2.field1
) DUMMY_ALIAS2
This code did compile but the DUMMY_ALIAS1
and DUMMY_ALIAS2
override the Order By
established in the Select
statement which makes this unusable.
The only solution that I could think of, that worked for me was not using a union and instead making the queries run individually and then dealing with them. So basically, not using a Union
when you want to Order By
If you want to escape user input in a variable you can do like below within SQL
Set @userinput = replace(@userinput,'''','''''')
The @userinput will be now escaped with an extra single quote for every occurance of a quote
I'm pretty sure this is just a bug in iOS 8.0. It's reproducible with the simplest of POC apps that does nothing more than attempt to present a UIImagePickerController like you're doing above. Furthermore, there's no alternative pattern to displaying the image picker/camera, to my knowledge. You can even download Apple's Using UIImagePickerController sample app, run it, and it will generate the same error out of the box.
That said, the functionality still works for me. Other than the warning/error, do you have issues with the functioning of your app?
USE sum() TO SUM THE VALUES IN A DICTIONARY.
Call dict.values() to return the values of a dictionary dict. Use sum(values) to return the sum of the values from the previous step.
d = {'key1':1,'key2':14,'key3':47}
values = d.values()
#Return values of a dictionary
total = sum(values)
print(total)
You're trying to open each file twice! First you do:
infile=open('110331_HS1A_1_rtTA.result','r')
and then you pass infile
(which is a file object) to the open
function again:
with open (infile, mode='r', buffering=-1)
open
is of course expecting its first argument to be a file name, not an opened file!
Open the file once only and you should be fine.
You can delete the data from array
this.data.splice(index, 1);
To sort by a property in the object, you have to specify a comparer or a method to get that property.
Using the List.Sort
method:
theList.Sort(Function(x, y) x.age.CompareTo(y.age))
Using the OrderBy
extension method:
theList = theList.OrderBy(Function(x) x.age).ToList()
Debugging build step failures is indeed very annoying.
The best solution I have found is to make sure that each step that does real work succeeds, and adding a check after those that fails. That way you get a committed layer that contains the outputs of the failed step that you can inspect.
A Dockerfile, with an example after the # Run DB2 silent installer
line:
#
# DB2 10.5 Client Dockerfile (Part 1)
#
# Requires
# - DB2 10.5 Client for 64bit Linux ibm_data_server_runtime_client_linuxx64_v10.5.tar.gz
# - Response file for DB2 10.5 Client for 64bit Linux db2rtcl_nr.rsp
#
#
# Using Ubuntu 14.04 base image as the starting point.
FROM ubuntu:14.04
MAINTAINER David Carew <[email protected]>
# DB2 prereqs (also installing sharutils package as we use the utility uuencode to generate password - all others are required for the DB2 Client)
RUN dpkg --add-architecture i386 && apt-get update && apt-get install -y sharutils binutils libstdc++6:i386 libpam0g:i386 && ln -s /lib/i386-linux-gnu/libpam.so.0 /lib/libpam.so.0
RUN apt-get install -y libxml2
# Create user db2clnt
# Generate strong random password and allow sudo to root w/o password
#
RUN \
adduser --quiet --disabled-password -shell /bin/bash -home /home/db2clnt --gecos "DB2 Client" db2clnt && \
echo db2clnt:`dd if=/dev/urandom bs=16 count=1 2>/dev/null | uuencode -| head -n 2 | grep -v begin | cut -b 2-10` | chgpasswd && \
adduser db2clnt sudo && \
echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
# Install DB2
RUN mkdir /install
# Copy DB2 tarball - ADD command will expand it automatically
ADD v10.5fp9_linuxx64_rtcl.tar.gz /install/
# Copy response file
COPY db2rtcl_nr.rsp /install/
# Run DB2 silent installer
RUN mkdir /logs
RUN (/install/rtcl/db2setup -t /logs/trace -l /logs/log -u /install/db2rtcl_nr.rsp && touch /install/done) || /bin/true
RUN test -f /install/done || (echo ERROR-------; echo install failed, see files in container /logs directory of the last container layer; echo run docker run '<last image id>' /bin/cat /logs/trace; echo ----------)
RUN test -f /install/done
# Clean up unwanted files
RUN rm -fr /install/rtcl
# Login as db2clnt user
CMD su - db2clnt
After reading your question, I would say, generate special token to do request required. This token will live in specific time (lets say in one day).
Here is an example from to generate authentication token:
(day * 10) + (month * 100) + (year (last 2 digits) * 1000)
for example: 3 June 2011
(3 * 10) + (6 * 100) + (11 * 1000) =
30 + 600 + 11000 = 11630
then concatenate with user password, example "my4wesomeP4ssword!"
11630my4wesomeP4ssword!
Then do MD5 of that string:
05a9d022d621b64096160683f3afe804
When do you call a request, always use this token,
https://mywebservice.com/?token=05a9d022d621b64096160683f3afe804&op=getdata
This token is always unique everyday, so I guess this kind of protection is more than sufficient to always protect ur service.
Hope helps
:)
I've implemented a different method to check for primes because:
Here is my implementation:
public static BigInteger IntegerSquareRoot(BigInteger value)
{
if (value > 0)
{
int bitLength = value.ToByteArray().Length * 8;
BigInteger root = BigInteger.One << (bitLength / 2);
while (!IsSquareRoot(value, root))
{
root += value / root;
root /= 2;
}
return root;
}
else return 0;
}
private static Boolean IsSquareRoot(BigInteger n, BigInteger root)
{
BigInteger lowerBound = root * root;
BigInteger upperBound = (root + 1) * (root + 1);
return (n >= lowerBound && n < upperBound);
}
static bool IsPrime(BigInteger value)
{
Console.WriteLine("Checking if {0} is a prime number.", value);
if (value < 3)
{
if (value == 2)
{
Console.WriteLine("{0} is a prime number.", value);
return true;
}
else
{
Console.WriteLine("{0} is not a prime number because it is below 2.", value);
return false;
}
}
else
{
if (value % 2 == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by 2.", value);
return false;
}
else if (value == 5)
{
Console.WriteLine("{0} is a prime number.", value);
return true;
}
else if (value % 5 == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by 5.", value);
return false;
}
else
{
// The only way this number is a prime number at this point is if it is divisible by numbers ending with 1, 3, 7, and 9.
AutoResetEvent success = new AutoResetEvent(false);
AutoResetEvent failure = new AutoResetEvent(false);
AutoResetEvent onesSucceeded = new AutoResetEvent(false);
AutoResetEvent threesSucceeded = new AutoResetEvent(false);
AutoResetEvent sevensSucceeded = new AutoResetEvent(false);
AutoResetEvent ninesSucceeded = new AutoResetEvent(false);
BigInteger squareRootedValue = IntegerSquareRoot(value);
Thread ones = new Thread(() =>
{
for (BigInteger i = 11; i <= squareRootedValue; i += 10)
{
if (value % i == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by {1}.", value, i);
failure.Set();
}
}
onesSucceeded.Set();
});
ones.Start();
Thread threes = new Thread(() =>
{
for (BigInteger i = 3; i <= squareRootedValue; i += 10)
{
if (value % i == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by {1}.", value, i);
failure.Set();
}
}
threesSucceeded.Set();
});
threes.Start();
Thread sevens = new Thread(() =>
{
for (BigInteger i = 7; i <= squareRootedValue; i += 10)
{
if (value % i == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by {1}.", value, i);
failure.Set();
}
}
sevensSucceeded.Set();
});
sevens.Start();
Thread nines = new Thread(() =>
{
for (BigInteger i = 9; i <= squareRootedValue; i += 10)
{
if (value % i == 0)
{
Console.WriteLine("{0} is not a prime number because it is divisible by {1}.", value, i);
failure.Set();
}
}
ninesSucceeded.Set();
});
nines.Start();
Thread successWaiter = new Thread(() =>
{
AutoResetEvent.WaitAll(new WaitHandle[] { onesSucceeded, threesSucceeded, sevensSucceeded, ninesSucceeded });
success.Set();
});
successWaiter.Start();
int result = AutoResetEvent.WaitAny(new WaitHandle[] { success, failure });
try
{
successWaiter.Abort();
}
catch { }
try
{
ones.Abort();
}
catch { }
try
{
threes.Abort();
}
catch { }
try
{
sevens.Abort();
}
catch { }
try
{
nines.Abort();
}
catch { }
if (result == 1)
{
return false;
}
else
{
Console.WriteLine("{0} is a prime number.", value);
return true;
}
}
}
}
Update: If you want to implement a solution with trial division more rapidly, you might consider having a cache of prime numbers. A number is only prime if it is not divisible by other prime numbers that are up to the value of its square root. Other than that, you might consider using the probabilistic version of the Miller-Rabin primality test to check for a number's primality if you are dealing with large enough values (taken from Rosetta Code in case the site ever goes down):
// Miller-Rabin primality test as an extension method on the BigInteger type.
// Based on the Ruby implementation on this page.
public static class BigIntegerExtensions
{
public static bool IsProbablePrime(this BigInteger source, int certainty)
{
if(source == 2 || source == 3)
return true;
if(source < 2 || source % 2 == 0)
return false;
BigInteger d = source - 1;
int s = 0;
while(d % 2 == 0)
{
d /= 2;
s += 1;
}
// There is no built-in method for generating random BigInteger values.
// Instead, random BigIntegers are constructed from randomly generated
// byte arrays of the same length as the source.
RandomNumberGenerator rng = RandomNumberGenerator.Create();
byte[] bytes = new byte[source.ToByteArray().LongLength];
BigInteger a;
for(int i = 0; i < certainty; i++)
{
do
{
// This may raise an exception in Mono 2.10.8 and earlier.
// http://bugzilla.xamarin.com/show_bug.cgi?id=2761
rng.GetBytes(bytes);
a = new BigInteger(bytes);
}
while(a < 2 || a >= source - 2);
BigInteger x = BigInteger.ModPow(a, d, source);
if(x == 1 || x == source - 1)
continue;
for(int r = 1; r < s; r++)
{
x = BigInteger.ModPow(x, 2, source);
if(x == 1)
return false;
if(x == source - 1)
break;
}
if(x != source - 1)
return false;
}
return true;
}
}
I have http_proxy
and https_proxy
are defined. I don't want to unset and set again those environments but --noproxy '*'
works perfectly for me.
curl --noproxy '*' -XGET 172.17.0.2:9200
{
"status" : 200,
"name" : "Medusa",
"cluster_name" : "elasticsearch",
"version" : {
"number" : "1.5.0",
"build_hash" : "544816042d40151d3ce4ba4f95399d7860dc2e92",
"build_timestamp" : "2015-03-23T14:30:58Z",
"build_snapshot" : false,
"lucene_version" : "4.10.4"
},
"tagline" : "You Know, for Search"
}
Try
String query = "INSERT INTO dbo.SMS_PW (id,username,password,email) VALUES (@id,@username, @password, @email)";
using(SqlConnection connection = new SqlConnection(connectionString))
using(SqlCommand command = new SqlCommand(query, connection))
{
//a shorter syntax to adding parameters
command.Parameters.Add("@id", SqlDbType.NChar).Value = "abc";
command.Parameters.Add("@username", SqlDbType.NChar).Value = "abc";
//a longer syntax for adding parameters
command.Parameters.Add("@password", SqlDbType.NChar).Value = "abc";
command.Parameters.Add("@email", SqlDbType.NChar).Value = "abc";
//make sure you open and close(after executing) the connection
connection.Open();
command.ExecuteNonQuery();
}
Just include this line at the end of function and the Problem is solved easily!
document.getElementById("btnsubmit").value = "";
There are multiple ways of reshaping a PyTorch tensor. You can apply these methods on a tensor of any dimensionality.
Let's start with a 2-dimensional 2 x 3
tensor:
x = torch.Tensor(2, 3)
print(x.shape)
# torch.Size([2, 3])
To add some robustness to this problem, let's reshape the 2 x 3
tensor by adding a new dimension at the front and another dimension in the middle, producing a 1 x 2 x 1 x 3
tensor.
None
Use NumPy-style insertion of None
(aka np.newaxis
) to add dimensions anywhere you want. See here.
print(x.shape)
# torch.Size([2, 3])
y = x[None, :, None, :] # Add new dimensions at positions 0 and 2.
print(y.shape)
# torch.Size([1, 2, 1, 3])
Use torch.Tensor.unsqueeze(i)
(a.k.a. torch.unsqueeze(tensor, i)
or the in-place version unsqueeze_()
) to add a new dimension at the i'th dimension. The returned tensor shares the same data as the original tensor. In this example, we can use unqueeze()
twice to add the two new dimensions.
print(x.shape)
# torch.Size([2, 3])
# Use unsqueeze twice.
y = x.unsqueeze(0) # Add new dimension at position 0
print(y.shape)
# torch.Size([1, 2, 3])
y = y.unsqueeze(2) # Add new dimension at position 2
print(y.shape)
# torch.Size([1, 2, 1, 3])
In practice with PyTorch, adding an extra dimension for the batch may be important, so you may often see unsqueeze(0)
.
Use torch.Tensor.view(*shape)
to specify all the dimensions. The returned tensor shares the same data as the original tensor.
print(x.shape)
# torch.Size([2, 3])
y = x.view(1, 2, 1, 3)
print(y.shape)
# torch.Size([1, 2, 1, 3])
Use torch.Tensor.reshape(*shape)
(aka torch.reshape(tensor, shapetuple)
) to specify all the dimensions. If the original data is contiguous and has the same stride, the returned tensor will be a view of input (sharing the same data), otherwise it will be a copy. This function is similar to the NumPy reshape()
function in that it lets you define all the dimensions and can return either a view or a copy.
print(x.shape)
# torch.Size([2, 3])
y = x.reshape(1, 2, 1, 3)
print(y.shape)
# torch.Size([1, 2, 1, 3])
Furthermore, from the O'Reilly 2019 book Programming PyTorch for Deep Learning, the author writes:
Now you might wonder what the difference is between view()
and reshape()
. The answer is that view()
operates as a view on the original tensor, so if the underlying data is changed, the view will change too (and vice versa). However, view()
can throw errors if the required view is not contiguous; that is, it doesn’t share the same block of memory it would occupy if a new tensor of the required shape was created from scratch. If this happens, you have to call tensor.contiguous()
before you can use view()
. However, reshape()
does all that behind the scenes, so in general, I recommend using reshape()
rather than view()
.
Use the in-place function torch.Tensor.resize_(*sizes)
to modify the original tensor. The documentation states:
WARNING. This is a low-level method. The storage is reinterpreted as C-contiguous, ignoring the current strides (unless the target size equals the current size, in which case the tensor is left unchanged). For most purposes, you will instead want to use view()
, which checks for contiguity, or reshape()
, which copies data if needed. To change the size in-place with custom strides, see set_()
.
print(x.shape)
# torch.Size([2, 3])
x.resize_(1, 2, 1, 3)
print(x.shape)
# torch.Size([1, 2, 1, 3])
If you want to add just one dimension (e.g. to add a 0th dimension for the batch), then use unsqueeze(0)
. If you want to totally change the dimensionality, use reshape()
.
What's the difference between reshape and view in pytorch?
What is the difference between view() and unsqueeze()?
In PyTorch 0.4, is it recommended to use reshape
than view
when it is possible?
If you are struggling with authenticating to a site, and Maven is caching the results, simply removing the meta-data about the site from the meta-data stash will force Maven to revisit the site.
gvim <local-git-repository>/commons-codec/resolver-status.properties
typescript prevent accessing object without assigning type that has the desired property or
already assigned to any
so you can use optional chaining window?.MyNamespace = 'value'
.
To do this using data.table, I found that the following works. Unfortunately, the link does not work anymore, so I used a link for another data set.
library(data.table)
temp <- tempfile()
download.file("https://www.bls.gov/tus/special.requests/atusact_0315.zip", temp)
timeUse <- fread(unzip(temp, files = "atusact_0315.dat"))
rm(temp)
I know this is possible in a single line since you can pass bash scripts to fread
, but I am not sure how to download a .zip file, extract, and pass a single file from that to fread
.
change layout weight according you will get....
Enter this:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_weight="0.03">
<ImageView
android:id="@+id/imageView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:scaleType="centerInside"
android:layout_gravity="center"
android:src="@drawable/logo" />
</LinearLayout>
Unfortunately, modules aren't supported by many browsers right now.
This feature is only just beginning to be implemented in browsers natively at this time. It is implemented in many transpilers, such as TypeScript and Babel, and bundlers such as Rollup and Webpack.
Found on MDN
For me it was occurring in a .net project and turned out to be something to do with my Visual Studio installation. I downloaded and installed the latest .net core sdk separately and then reinstalled VS and it worked.
I assume your game has a main loop, and all your sprites are in a list called sprites
.
In your main loop, get all events, and check for the MOUSEBUTTONDOWN
or MOUSEBUTTONUP
event.
while ... # your main loop
# get all events
ev = pygame.event.get()
# proceed events
for event in ev:
# handle MOUSEBUTTONUP
if event.type == pygame.MOUSEBUTTONUP:
pos = pygame.mouse.get_pos()
# get a list of all sprites that are under the mouse cursor
clicked_sprites = [s for s in sprites if s.rect.collidepoint(pos)]
# do something with the clicked sprites...
So basically you have to check for a click on a sprite yourself every iteration of the mainloop. You'll want to use mouse.get_pos() and rect.collidepoint().
Pygame does not offer event driven programming, as e.g. cocos2d does.
Another way would be to check the position of the mouse cursor and the state of the pressed buttons, but this approach has some issues.
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()):
print ("You have opened a chest!")
You'll have to introduce some kind of flag if you handled this case, since otherwise this code will print "You have opened a chest!" every iteration of the main loop.
handled = False
while ... // your loop
if pygame.mouse.get_pressed()[0] and mysprite.rect.collidepoint(pygame.mouse.get_pos()) and not handled:
print ("You have opened a chest!")
handled = pygame.mouse.get_pressed()[0]
Of course you can subclass Sprite
and add a method called is_clicked
like this:
class MySprite(Sprite):
...
def is_clicked(self):
return pygame.mouse.get_pressed()[0] and self.rect.collidepoint(pygame.mouse.get_pos())
So, it's better to use the first approach IMHO.
You can also get strange messages about the need to upgrade your working copy when there are other working copies nested into yours. I had this issue with a Symphony project were some framework folders are working copy, that I suppose have not been cleaned up properly before they were published.
In this case, just make a file search for .svn
, and delete the .svn
folders that you don't want (don't delete yours at the root of course).
Depending on your platform you can use: sqlite3 file_name.db from the terminal. .tables will list the tables, .schema is full layout. SQLite commands like: select * from table_name; and such will print out the full contents. Type: ".exit" to exit. No need to download a GUI application.Use a semi-colon if you want it to execute a single command. Decent SQLite usage tutorial http://www.thegeekstuff.com/2012/09/sqlite-command-examples/
For me for this issue worked to:
After eclipse restart everything worked well.
You are looking for --build-arg
and the ARG
instruction. These are new as of Docker 1.9. Check out https://docs.docker.com/engine/reference/builder/#arg. This will allow you to add ARG arg
to the Dockerfile
and then build with docker build --build-arg arg=2.3 .
.
I'd not heard of mp3wrap before. Looks great. I'm guessing someone's made it into a gui as well somewhere. But, just to respond to the original post, I've written a gui that does the COPY /b method. So, under the covers, nothing new under the sun, but the program is all about making the process less painful if you have a lot of files to merge...AND you don't want to re-encode AND each set of files to merge are the same bitrate. If you have that (and you're on Windows), check out Mp3Merge at: http://www.leighweb.com/david/mp3merge and see if that's what you're looking for.
do this on a new thread (seperate it from main thread)
new Thread(new Runnable() {
@Override
public void run() {
// TODO Auto-generated method stub
}
}).run();
Lets say we have a script in "c:\script.py" that contain :
result = open("index.html","r")
print(result.read())
Lets say that the index.html file is also in the same directory "c:\index.html" when i execute the script from cmd (or shell)
C:\Users\Amine>python c:\script.py
You will get error:
FileNotFoundError: [Errno 2] No such file or directory: 'index.html'
And that because "index.html" is not in working directory which is "C:\Users\Amine>". so in order to make it work you have to change the working directory
C:\python script.py
'<html><head></head><body></body></html>'
This is why is it preferable to use absolute path.
height and depth of a tree is equal...
but height and depth of a node is not equal because...
the height is calculated by traversing from the given node to the deepest possible leaf.
depth is calculated from traversal from root to the given node.....
In WAMP the files are served by the Apache component (the A in WAMP).
In Apache, by default the files served are located in the subdirectory htdocs
of the installation directory. But this can be changed, and is actually changed when WAMP installs Apache.
The location from where the files are served is named the DocumentRoot
, and is defined using a variable in Apache configuration file. The default value is the subdirectory htdocs
relative to what is named the ServerRoot
directory.
By default the ServerRoot
is the installation directory of Apache. However this can also be redefined into the configuration file, or using the -d
option of the command httpd
which is used to launch Apache. The value in the configuration file overrides the -d
option.
The configuration file is by default conf/httpd.conf
relative to ServerRoot
. But this can be changed using the -f
option of command httpd.
When WAMP installs itself, it modify the default configuration file with DocumentRoot c:/wamp/www/
. The files to be served need to be located here and not in the htdocs
default directory.
You may change this location set by WAMP, either by modifying DocumentRoot
in the default configuration file, or by using one of the two command line options -f
or -d
which point explicitly or implicity to a new configuration file which may hold a different value for DocumentRoot
(in that case the new file needs to contain this definition, but also the rest of the configuration found in the default configuration file).
You can group your dependencies within a different project with packaging pom
as described by Sonatypes Best Practices:
<project>
<modelVersion>4.0.0</modelVersion>
<artifactId>base-dependencies</artifactId>
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
<packaging>pom</packaging>
<dependencies>
<dependency>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
<version>1.4</version>
</dependency>
</dependencies>
</project>
and reference them from your parent-pom (watch the dependency <type>pom</type>
):
<project>
<modelVersion>4.0.0</modelVersion>
<artifactId>base</artifactId>
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
<packaging>pom</packaging>
<dependencies>
<dependency>
<artifactId>base-dependencies</artifactId>
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
<type>pom</type>
</dependency>
</dependencies>
</project>
Your child-project inherits this parent-pom as before. But now, the mail dependency can be excluded in the child-project within the dependencyManagement
block:
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>test</groupId>
<artifactId>jruby</artifactId>
<version>0.0.1-SNAPSHOT</version>
<parent>
<artifactId>base</artifactId>
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<artifactId>base-dependencies</artifactId>
<groupId>es.uniovi.innova</groupId>
<version>1.0.0</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
</dependencyManagement>
</project>
You didn't specify your IDEA version. Before 9.0 use Build | Build Jars, in IDEA 9.0 use Project Structure | Artifacts.
You can see the following code to solved the problem
return $query->join('kg_shops', function($join)
{
$join->on('kg_shops.id', '=', 'kg_feeds.shop_id');
$join->where('kg_shops.active','=', 1);
});
Or another way to solved it
return $query->join('kg_shops', function($join)
{
$join->on('kg_shops.id', '=', 'kg_feeds.shop_id');
$join->on('kg_shops.active','=', DB::raw('1'));
});
Just put this line :
builder.setAutoCancel(true);
And the full code is :
NotificationCompat.Builder builder = new NotificationCompat.Builder(this);
builder.setSmallIcon(android.R.drawable.ic_dialog_alert);
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse("https://www.google.co.in/"));
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
builder.setContentIntent(pendingIntent);
builder.setLargeIcon(BitmapFactory.decodeResource(getResources(), R.mipmap.misti_ic));
builder.setContentTitle("Notifications Title");
builder.setContentText("Your notification content here.");
builder.setSubText("Tap to view the website.");
Toast.makeText(getApplicationContext(), "The notification has been created!!", Toast.LENGTH_LONG).show();
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
builder.setAutoCancel(true);
// Will display the notification in the notification bar
notificationManager.notify(1, builder.build());
These are automatic variables, like $null
, $true
, $false
etc.
about_Automatic_Variables
, see https://technet.microsoft.com/en-us/library/hh847768.aspx?f=255&MSPPError=-2147217396
$NULL
$null
is an automatic variable that contains a NULL or empty value. You can use this variable to represent an absent or undefined value in commands and scripts.Windows PowerShell treats
$null
as an object with a value, that is, as an explicit placeholder, so you can use $null to represent an empty value in a series of values.For example, when
$null
is included in a collection, it is counted as one of the objects.C:\PS> $a = ".dir", $null, ".pdf" C:\PS> $a.count 3
If you pipe the
$null
variable to theForEach-Object
cmdlet, it generates a value for$null
, just as it does for the other objects.PS C:\ps-test> ".dir", $null, ".pdf" | Foreach {"Hello"} Hello Hello Hello
As a result, you cannot use
$null
to mean "no parameter value." A parameter value of$null
overrides the default parameter value.However, because Windows PowerShell treats the
$null
variable as a placeholder, you can use it scripts like the following one, which would not work if$null
were ignored.$calendar = @($null, $null, “Meeting”, $null, $null, “Team Lunch”, $null) $days = Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday" $currentDay = 0 foreach($day in $calendar) { if($day –ne $null) { "Appointment on $($days[$currentDay]): $day" } $currentDay++ }
output:
Appointment on Tuesday: Meeting Appointment on Friday: Team lunch
For loading weights, you need to have a model first. It must be:
existingModel.save_weights('weightsfile.h5')
existingModel.load_weights('weightsfile.h5')
If you want to save and load the entire model (this includes the model's configuration, it's weights and the optimizer states for further training):
model.save_model('filename')
model = load_model('filename')
You can encapsulate your block of code with a try ... catch statement, and when you run your code, if the column doesn't exist it will throw an exception. You can then figure out what specific exception it throws and have it handle that specific exception in a different way if you so desire, such as returning "Column Not Found".
You can wire up your own custom event
$('textarea').bind("enterKey",function(e){
//do stuff here
});
$('textarea').keyup(function(e){
if(e.keyCode == 13)
{
$(this).trigger("enterKey");
}
});
1920 is a generic error code that means the service didn't start. My hunch is this:
http://blog.iswix.com/2008/09/different-year-same-problem.html
To confirm, with the installer on the abort, retry, ignore, cancel dialog up... go into services.msc and set the username and password manually. If you get a message saying the user was granted logon as service right, try hitting retry on the MSI dialog and see if it starts.
It could also be missing dependencies or exceptions being thrown in your code.
There is good uses of public nested members too...
Nested classes have access to the private members of the outer class. So a scenario where this is the right way would be when creating a Comparer (ie. implementing the IComparer interface).
In this example, the FirstNameComparer has access to the private _firstName member, which it wouldn't if the class was a separate class...
public class Person
{
private string _firstName;
private string _lastName;
private DateTime _birthday;
//...
public class FirstNameComparer : IComparer<Person>
{
public int Compare(Person x, Person y)
{
return x._firstName.CompareTo(y._firstName);
}
}
}
Use the CSS3 Viewport-percentage feature.
Viewport-Percentage Explanation
Assuming you want the body width size to be a ratio of the browser's view port. I added a border so you can see the body resize as you change your browser width or height. I used a ratio of 90% of the view-port size.
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<title>Styles</title>_x000D_
_x000D_
<style>_x000D_
@media screen and (min-width: 480px) {_x000D_
body {_x000D_
background-color: skyblue;_x000D_
width: 90vw;_x000D_
height: 90vh;_x000D_
border: groove black;_x000D_
}_x000D_
_x000D_
div#main {_x000D_
font-size: 3vw;_x000D_
}_x000D_
}_x000D_
</style>_x000D_
_x000D_
</head>_x000D_
<body>_x000D_
<div id="main">_x000D_
Viewport-Percentage Test_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
To solve this issue it can also help to delete and recreate the *.sln.DotSettings
file of the associated solution.
You cannot just put in a function to pause Javascript unfortunately.
You have to use setTimeout()
Example:
function startTimer () {
timer.start();
setTimeout(stopTimer,5000);
}
function stopTimer () {
timer.stop();
}
EDIT:
For your user generated countdown, it is just as simple.
HTML:
<input type="number" id="delay" min="1" max="5">
JS:
var delayInSeconds = parseInt(delay.value);
var delayInMilliseconds = delayInSeconds*1000;
function startTimer () {
timer.start();
setTimeout(stopTimer,delayInMilliseconds);
}
function stopTimer () {
timer.stop;
}
Now you simply need to add a trigger for startTimer()
, such as onchange
.
Both codes are working fine with me on python 3.7..... hope will work for u as well
import tkinter as tk
m=tk.Tk()
m.iconbitmap("myfavicon.ico")
m.title("SALAH Tutorials")
m.mainloop()
and do not forget to keep "myfavicon.ico" in the same folder where your project script file is present
Another method
from tkinter import *
m=Tk()
m.iconbitmap("myfavicon.ico")
m.title("SALAH Tutorials")
m.mainloop()
[*NOTE:- python version-3 works with tkinter and below version-3 i.e version-2 works with Tkinter]
As Paolo said, we have 2 invocation methods:
1) python -m tests.core_test
2) python tests/core_test.py
One difference between them is sys.path[0] string. Since the interpret will search sys.path when doing import, we can do with tests/core_test.py
:
if __name__ == '__main__':
import sys
from pathlib import Path
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))
from components import core
<other stuff>
And more after this, we can run core_test.py with other methods:
cd tests
python core_test.py
python -m core_test
...
Note, py36 tested only.
I think I may have a better solution for having a fully responsive iframe (a vimeo video in my case) embed on your site. Nest the iframe in a div. Give them the following styles:
div {
width: 100%;
height: 0;
padding-bottom: 56%; /* Change this till it fits the dimensions of your video */
position: relative;
}
div iframe {
width: 100%;
height: 100%;
position: absolute;
display: block;
top: 0;
left: 0;
}
Just did it now for a client, and it seems to be working: http://themilkrunsa.co.za/
You can achieve this like following :
map<string, int>::iterator it;
for (it = symbolTable.begin(); it != symbolTable.end(); it++)
{
std::cout << it->first // string (key)
<< ':'
<< it->second // string's value
<< std::endl;
}
With C++11 ( and onwards ),
for (auto const& x : symbolTable)
{
std::cout << x.first // string (key)
<< ':'
<< x.second // string's value
<< std::endl;
}
With C++17 ( and onwards ),
for (auto const& [key, val] : symbolTable)
{
std::cout << key // string (key)
<< ':'
<< val // string's value
<< std::endl;
}
There is no need for jQuery here, regular JavaScript will do:
var str = "Abc: Lorem ipsum sit amet";
str = str.substring(str.indexOf(":") + 1);
Or, the .split()
and .pop()
version:
var str = "Abc: Lorem ipsum sit amet";
str = str.split(":").pop();
Or, the regex version (several variants of this):
var str = "Abc: Lorem ipsum sit amet";
str = /:(.+)/.exec(str)[1];
Thought to share my helper method for those who can use it:
public static class Sql
{
public static T Read<T>(DbDataReader DataReader, string FieldName)
{
int FieldIndex;
try { FieldIndex = DataReader.GetOrdinal(FieldName); }
catch { return default(T); }
if (DataReader.IsDBNull(FieldIndex))
{
return default(T);
}
else
{
object readData = DataReader.GetValue(FieldIndex);
if (readData is T)
{
return (T)readData;
}
else
{
try
{
return (T)Convert.ChangeType(readData, typeof(T));
}
catch (InvalidCastException)
{
return default(T);
}
}
}
}
}
Usage:
cmd.CommandText = @"SELECT DISTINCT [SoftwareCode00], [MachineID]
FROM [CM_S01].[dbo].[INSTALLED_SOFTWARE_DATA]";
using (SqlDataReader data = cmd.ExecuteReader())
{
while (data.Read())
{
usedBy.Add(
Sql.Read<String>(data, "SoftwareCode00"),
Sql.Read<Int32>(data, "MachineID"));
}
}
The helper method casts to any value you like, if it can't cast or the database value is NULL, the result will be null.
first thing first, all shards failed exception is not as dramatic as it sounds, it means shards were failed while serving a request(query or index), and there could be multiple reasons for it like
In order to fix the issue, you need to filter it in one of the above category and based on that appropriate fix is required.
The one mentioned in the question, is clearly in the first bucket as cluster health is RED, means one or more primary shards are missing, and my this SO answer will help you fix RED cluster issue, which will fix the all shards exception in this case.
Simply function:
public static String getSQL (Statement stmt){
String tempSQL = stmt.toString();
//please cut everything before sql from statement
//javadb...:
int i1 = tempSQL.indexOf(":")+2;
tempSQL = tempSQL.substring(i1);
return tempSQL;
}
It's fine aswell for preparedStatement.
I think you want Any
:
if (myList.Any(str => str.Contains("Mdd LH")))
It's well worth becoming familiar with the LINQ standard query operators; I would usually use those rather than implementation-specific methods (such as List<T>.ConvertAll
) unless I was really bothered by the performance of a specific operator. (The implementation-specific methods can sometimes be more efficient by knowing the size of the result etc.)
<script type="text/javascript">
window.alert("My name is George. Welcome!")
</script>
Another nice pre-processor "trick" is to use the "#" character to print debugging expressions. For example:
#define MY_ASSERT(cond) \
do { \
if( !(cond) ) { \
printf("MY_ASSERT(%s) failed\n", #cond); \
exit(-1); \
} \
} while( 0 )
edit: the code below only works on C++. Thanks to smcameron and Evan Teran.
Yes, the compile time assert is always great. It can also be written as:
#define COMPILE_ASSERT(cond)\
typedef char __compile_time_assert[ (cond) ? 0 : -1]
I wrote this app a while ago, http://sqlschemasourcectrl.codeplex.com/ which will scan your MSFT SQL db's as often as you want and automatically dump your objects (tables, views, procs, functions, sql settings) into SVN. Works like a charm. I use it with Unfuddle (which allows me to get alerts on checkins)
use java.util.Random
to generate a random number between 0 and array length: random_number
, and then use the random number to get the integer: array[random_number]
javac -version
in a terminal will do
I'm not quite happy with this implementation yet, I wanted to have a custom constructor that does DirectoryIndex._make(next(os.walk(input_path)))
such that you can just pass the path you want a file listing for. Edits welcome!
import collections
import os
DirectoryIndex = collections.namedtuple('DirectoryIndex', ['root', 'dirs', 'files'])
for file_name in DirectoryIndex(*next(os.walk('.'))).files:
file_path = os.path.join(path, file_name)
Here is a simple one"
public class Palindrome {
public static void main(String [] args){
Palindrome pn = new Palindrome();
if(pn.isPalindrome("ABBA")){
System.out.println("Palindrome");
} else {
System.out.println("Not Palindrome");
}
}
public boolean isPalindrome(String original){
int i = original.length()-1;
int j=0;
while(i > j) {
if(original.charAt(i) != original.charAt(j)) {
return false;
}
i--;
j++;
}
return true;
}
}
Port 465 is for "smtp over SSL".
http://javamail.kenai.com/nonav/javadocs/com/sun/mail/smtp/package-summary.html
[...] For example, use
props.put("mail.smtp.port", "888");
to set the mail.smtp.port property, which is of type int.
Note that if you're using the "smtps" protocol to access SMTP over SSL,
all the properties would be named "mail.smtps.*"
I'm using AngularJS 1.3.15 and looks like I don't have to do anything special.
https://code.angularjs.org/1.3.15/docs/api/ng/provider/$anchorScrollProvider
So, the following works for me in my html:
<ul>
<li ng-repeat="page in pages"><a ng-href="#{{'id-'+id}}">{{id}}</a>
</li>
</ul>
<div ng-attr-id="{{'id-'+id}}" </div>
I didn't have to make any changes to my controller or JavaScript at all.
How we Pause/stop YouTube iframe to when we use embed videos in modalpopup
$('#close_one').click(function (e) {
let link = document.querySelector('.divclass');// get iframe class
let link = document.querySelector('#divid');// get iframe id
let video_src = link.getAttribute('src');
$('.youtube-video').children('iframe').attr('src', ''); // set iframe parent div value null
$('.youtube-video').children('iframe').attr('src', video_src);// set iframe src again it works perfect
});
Use the DATEDIFF
function with a datepart of day
.
SELECT ...
FROM ...
WHERE DATEDIFF(day, date1, date2) >= 0
Note that if you want to test that date1
<= date2
then you need to test that DATEDIFF(day, date1, date2) >= 0
, or alternatively you could test DATEDIFF(day, date2, date1) <= 0
.
You can also try:
{
"dateProp": { $gt: new Date('06/15/2016').getTime() }
}
In web.config add this under system.webserver tag as below,
<system.webServer>
<httpErrors errorMode="Custom" existingResponse="Replace">
<remove statusCode="404"/>
<remove statusCode="500"/>
<error statusCode="404" responseMode="ExecuteURL" path="/Error/NotFound"/>
<error statusCode="500" responseMode="ExecuteURL"path="/Error/ErrorPage"/>
</httpErrors>
and add a controller as,
public class ErrorController : Controller
{
//
// GET: /Error/
[GET("/Error/NotFound")]
public ActionResult NotFound()
{
Response.StatusCode = 404;
return View();
}
[GET("/Error/ErrorPage")]
public ActionResult ErrorPage()
{
Response.StatusCode = 500;
return View();
}
}
and add their respected views, this will work definitely I guess for all.
This solution I found it from: Neptune Century
I had this error for two weeks, and the majority of the solutions stated 'chmod -R' as the the answer, unfortunately for me my git repos (local / remote / shared - with team) were all on Windows OS, and even though chmod -Rv showed all the files changed to 'rwxrwxrwx', a subsequent 'ls -l' still showed all files as 'rwxr-xr-x' and the error repeated itself. I eventually saw this solution by Ariejan de Vroom. It worked and we were all able to pull and push again.
On both local (the local that is having trouble pushing) and remote repos, run the following commands:
$ git fsck
$ git prune
$ git repack
$ git fsck
On a side note, I tried using Windows' native file permissions / ACL and even resorted to elevating the problem user to Administrator, but none of that seemed to help. Not sure if the environment is important, but it may help someone with a similar setup - problem team member and remote (Windows Server 2008 R2 Standard), my local (Windows 7 VM).
One-liner:
$valueExists = (Get-Item $regKeyPath -EA Ignore).Property -contains $regValueName
".Last()" didnt work for me, so I had to do something like this:
Dictionary<string, string> iterativeDictionary = someOtherDictionary;
var index = 0;
iterativeDictionary.ForEach(kvp =>
index++ == iterativeDictionary.Count ?
/*it's the last item */ :
/*it's not the last item */
);
You can use sessionInfo()
to accomplish that.
> sessionInfo()
R version 2.15.0 (2012-03-30)
Platform: x86_64-pc-linux-gnu (64-bit)
locale:
[1] LC_CTYPE=en_US.UTF-8 LC_NUMERIC=C LC_TIME=en_US.UTF-8 LC_COLLATE=en_US.UTF-8
[5] LC_MONETARY=en_US.UTF-8 LC_MESSAGES=en_US.UTF-8 LC_PAPER=C LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] graphics grDevices utils datasets stats grid methods base
other attached packages:
[1] ggplot2_0.9.0 reshape2_1.2.1 plyr_1.7.1
loaded via a namespace (and not attached):
[1] colorspace_1.1-1 dichromat_1.2-4 digest_0.5.2 MASS_7.3-18 memoise_0.1 munsell_0.3
[7] proto_0.3-9.2 RColorBrewer_1.0-5 scales_0.2.0 stringr_0.6
>
However, as per comments and the answer below, there are better options
> packageVersion("snow")
[1] ‘0.3.9’
Or:
"Rmpi" %in% loadedNamespaces()
@echo off
set array=
setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
set nl=^&echo(
set array=auto blue ^!nl!^
bycicle green ^!nl!^
buggy red
echo convert the String in indexed arrays
set /a index=0
for /F "tokens=1,2,3*" %%a in ( 'echo(!array!' ) do (
echo(vehicle[!index!]=%%a color[!index!]=%%b
set vehicle[!index!]=%%a
set color[!index!]=%%b
set /a index=!index!+1
)
echo use the arrays
echo(%vehicle[1]% %color[1]%
echo oder
set index=1
echo(!vehicle[%index%]! !color[%index%]!
The language doesn't care. What's important is to follow the established styles and conventions of the project you're working on, such that other maintainers (or you five months from now) have the best possible chance of not being confused.
I think an all-uppercase name for a mutable object would certainly confuse me, even if the reference to that object happened to be stored in a static final
variable.
So I'm going to go a bit deeper in to why this doesn't work because I'm the kind of person that can't sleep at night without knowing haha. I'm using jQuery validate 1.10 and Microsoft jQuery Unobtrusive Validation 2.0.20710.0 which was published on 1/29/2013.
I started by searching for the setDefaults method in jQuery Validate and found it on line 261 of the unminified file. All this function really does is merge your json settings in to the existing $.validator.defaults
which are initialized with the ignore property being set to ":hidden" along with the other defaults defined in jQuery Validate. So at this point we've overridden ignore. Now let's see where this defaults property is being referenced at.
When I traced through the code to see where $.validator.defaults
is being referenced. I noticed that is was only being used by the constructor for a form validator, line 170 in jQuery validate unminified file.
// constructor for validator
$.validator = function( options, form ) {
this.settings = $.extend( true, {}, $.validator.defaults, options );
this.currentForm = form;
this.init();
};
At this point a validator will merge any default settings that were set and attach it to the form validator. When you look at the code that is doing the validating, highlighting, unhighlighting, etc they all use the validator.settings object to pull the ignore property. So we need to make sure if we are to set the ignore with the setDefaults method then it has to occur before the $("form").validate() is called.
If you're using Asp.net MVC and the unobtrusive plugin, then you'll realize after looking at the javascript that validate is called in document.ready. I've also called my setDefaults in the document.ready block which is going to execute after the scripts, jquery validate and unobtrusive because I've defined those scripts in the html before the one that has the call in it. So my call obviously had no impact on the default functionality of skipping hidden elements during validation. There is a couple of options here.
Option 1 - You could as Juan Mellado pointed out have the call outside of the document.ready which would execute as soon as the script has been loaded. I'm not sure about the timing of this since browsers are now capable of doing parallel script loading. If I'm just being over cautious then please correct me. Also, there's probably ways around this but for my needs I did not go down this path.
Option 2a - The safe bet in my eyes is to just replace the $.validator.setDefaults({ ignore: '' });
inside of the document.ready event with $("form").data("validator").settings.ignore = "";
. This will modify the ignore property that is actually used by jQuery validate when doing each validation on your elements for the given form.
Options 2b - After looking in to the code a bit more you could also use $("form").validate().settings.ignore = "";
as a way of setting the ignore property. The reason is that when looking at the validate function it checks to see if a validator object has already been stored for the form element via the $.data()
function. If it finds a validator object stored with the form element then it just returns the validator object instead of creating another one.
Definitely integers.
And even though BigDecimal technically exists 1.5
will still give you a pure Float in Ruby.
Wow! So many answers and I don't think one of them got it right...
1) Where and what are they (physically in a real computer's memory)?
The stack is memory that begins as the highest memory address allocated to your program image, and it then decrease in value from there. It is reserved for called function parameters and for all temporary variables used in functions.
There are two heaps: public and private.
The private heap begins on a 16-byte boundary (for 64-bit programs) or a 8-byte boundary (for 32-bit programs) after the last byte of code in your program, and then increases in value from there. It is also called the default heap.
If the private heap gets too large it will overlap the stack area, as will the stack overlap the heap if it gets too big. Because the stack starts at a higher address and works its way down to lower address, with proper hacking you can get make the stack so large that it will overrun the private heap area and overlap the code area. The trick then is to overlap enough of the code area that you can hook into the code. It's a little tricky to do and you risk a program crash, but it's easy and very effective.
The public heap resides in it's own memory space outside of your program image space. It is this memory that will be siphoned off onto the hard disk if memory resources get scarce.
2) To what extent are they controlled by the OS or language runtime?
The stack is controlled by the programmer, the private heap is managed by the OS, and the public heap is not controlled by anyone because it is an OS service -- you make requests and either they are granted or denied.
2b) What is their scope?
They are all global to the program, but their contents can be private, public, or global.
2c) What determines the size of each of them?
The size of the stack and the private heap are determined by your compiler runtime options. The public heap is initialized at runtime using a size parameter.
2d) What makes one faster?
They are not designed to be fast, they are designed to be useful. How the programmer utilizes them determines whether they are "fast" or "slow"
REF:
https://norasandler.com/2019/02/18/Write-a-Compiler-10.html
https://docs.microsoft.com/en-us/windows/desktop/api/heapapi/nf-heapapi-getprocessheap
https://docs.microsoft.com/en-us/windows/desktop/api/heapapi/nf-heapapi-heapcreate
@Asiddeen bn Muhammad's solution worked for me with a little modification to the css
.text {
line-height: 1.5;
height: 6em;
white-space: normal;
overflow: hidden;
text-overflow: ellipsis;
display: block;
-webkit-line-clamp: 2;
-webkit-box-orient: vertical;
}
DateTime dt = new DateTime(laterDate);
DateTime newDate = dt.minus( new DateTime ( previousDate ).getMillis());
System.out.println("No of days : " + newDate.getDayOfYear() - 1 );
Try mylist[0][0]
. This should return the first character.
The System.Windows.Media.Imaging
namespace is part of PresentationCore.dll (if you are using Visual Studio 2008 then the WPF application template will automatically add this reference). Note that this namespace is not a direct wrapping of the WIC library, although a large proportion of the more common uses are still available and it is relatively obvious how these map to the WIC versions. For more information on the classes in this namespace check out
http://msdn2.microsoft.com/en-us/library/system.windows.media.imaging.aspx
Following two steps worked perfectly fine for me:
Comment out the bind address from the file /etc/mysql/my.cnf
:
#bind-address = 127.0.0.1
Run following query in phpMyAdmin:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'; FLUSH PRIVILEGES;
Chart.js 2.X.X
I know this post is old. But if anyone is looking for more flexible solution, here it is
var options = {
scales: {
yAxes: [{
ticks: {
beginAtZero: true,
callback: function(label, index, labels) {
return Intl.NumberFormat().format(label);
// 1,350
return Intl.NumberFormat('hi', {
style: 'currency', currency: 'INR', minimumFractionDigits: 0,
}).format(label).replace(/^(\D+)/, '$1 ');
// ? 1,350
// return Intl.NumberFormat('hi', {
style: 'currency', currency: 'INR', currencyDisplay: 'symbol', minimumFractionDigits: 2
}).format(label).replace(/^(\D+)/, '$1 ');
// ? 1,350.00
}
}
}]
}
}
'hi' is Hindi. Check here for other locales argument
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl#Locale_identification_and_negotiation#locales_argument
for more currency symbol
https://www.currency-iso.org/en/home/tables/table-a1.html
findstr
can do recursive searches (/S) and supports some variant of regex syntax (/R).
C:\>findstr /?
Searches for strings in files.
FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file]
[/C:string] [/G:file] [/D:dir list] [/A:color attributes] [/OFF[LINE]]
strings [[drive:][path]filename[ ...]]
/B Matches pattern if at the beginning of a line.
/E Matches pattern if at the end of a line.
/L Uses search strings literally.
/R Uses search strings as regular expressions.
/S Searches for matching files in the current directory and all
subdirectories.
/I Specifies that the search is not to be case-sensitive.
/X Prints lines that match exactly.
/V Prints only lines that do not contain a match.
/N Prints the line number before each line that matches.
/M Prints only the filename if a file contains a match.
/O Prints character offset before each matching line.
/P Skip files with non-printable characters.
/OFF[LINE] Do not skip files with offline attribute set.
/A:attr Specifies color attribute with two hex digits. See "color /?"
/F:file Reads file list from the specified file(/ stands for console).
/C:string Uses specified string as a literal search string.
/G:file Gets search strings from the specified file(/ stands for console).
/D:dir Search a semicolon delimited list of directories
strings Text to be searched for.
[drive:][path]filename
Specifies a file or files to search.
Use spaces to separate multiple search strings unless the argument is prefixed
with /C. For example, 'FINDSTR "hello there" x.y' searches for "hello" or
"there" in file x.y. 'FINDSTR /C:"hello there" x.y' searches for
"hello there" in file x.y.
Regular expression quick reference:
. Wildcard: any character
* Repeat: zero or more occurrences of previous character or class
^ Line position: beginning of line
$ Line position: end of line
[class] Character class: any one character in set
[^class] Inverse class: any one character not in set
[x-y] Range: any characters within the specified range
\x Escape: literal use of metacharacter x
\<xyz Word position: beginning of word
xyz\> Word position: end of word
For full information on FINDSTR regular expressions refer to the online Command
Reference.
Yes, your conclusion is correct. socket.recv
is a blocking call.
socket.recv(1024)
will read at most 1024 bytes, blocking if no data is waiting to be read. If you don't read all data, an other call to socket.recv
won't block.
socket.recv
will also end with an empty string if the connection is closed or there is an error.
If you want a non-blocking socket, you can use the select module (a bit more complicated than just using sockets) or you can use socket.setblocking
.
I had issues with socket.setblocking
in the past, but feel free to try it if you want.
Agree to dr evil if you use HTTPListener you will have many problems, you have to parse requests and will be engaged to headers and ...
you see you dont need to even know what is in the browser request and parse it, only get the target site address from the first line first line usually likes this GET http://google.com HTTP1.1 or CONNECT facebook.com:443 (this is for ssl requests)
Example:
contents of the ae.csv file:
"Date, xpto 14"
"code","number","year","C"
"blab","15885","2016","Y"
"aeea","15883","1982","E"
"xpto","15884","1986","B"
"jrgg","15885","1400","A"
CREATE TABLE Tabletmp (
rec VARCHAR(9)
);
For put only column 3:
LOAD DATA INFILE '/local/ae.csv'
INTO TABLE Tabletmp
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\r\n'
IGNORE 2 LINES
(@col1, @col2, @col3, @col4, @col5)
set rec = @col3;
select * from Tabletmp;
2016
1982
1986
1400
I have this challenge when working on an Ubuntu 18.04 Linux server.
Here's how I fixed it:
Run the command below to determine the location of your version.sh
file:
sudo find / -name "version.sh"
For me the output was:
/opt/tomcat/bin/version.sh
Then, using the output, run the file (version.sh
) as a shell script (sh
):
sh /opt/tomcat/bin/version.sh
That's all.
I hope this helps
In PowerShell, the "sc" command is an alias for the Set-Content cmdlet. You can workaround this using the following syntax:
sc.exe config Service obj= user password= pass
Specyfying the .exe extension, PowerShell bypasses the alias lookup.
HTH
After trying several answers, I was finally able to solve this issue (on window 10),
>git fetch
remote: HTTP Basic: Access denied
fatal: Authentication failed for 'http://gitlab.abc.net/V4/VH.git/'
By updating the password stored in Git Credential Manger for Windows(GCM),
Control Panel->User Accounts -> Windows Credentials
Corrupt Permissions: Regaining access to a folder and its sub-objects
Although most of the answers posted in reply to the question have some merit, IMHO none of them give a complete solution. The following (might be) a perfect solution for Windows 7 if you are locked-out of a folder by corrupted permission settings:
icacls "c:\folder" /remove:d /grant:r Everyone:(OI)(CI)F /T
For Windows 10 the user/SID must be specified after the /remove:d
option:
icacls "c:\folder" /remove:d Everyone /grant:r Everyone:(OI)(CI)F /T
.
Notes:
The command is applied to the specified directory.
Specifying the user "Everyone" sets the widest possible permission, as it includes every possible user.
The option "/remove:d" deletes any explicit DENY settings that may exist, as those override explicit ALLOW settings: a necessary preliminary to creating a new ALLOW setting. This is only a precaution, as there is often no DENY setting present, but better safe than sorry.
The option "/grant" creates a new ALLOW setting, an explicit permission that replaces (":r") any and all explicit ALLOW settings that may exist.
The "F" parameter (i.e. the permission created) makes this a grant of FULL control.
The "/T" parameter adds recursion, applying these changes to all current sub-objects in the specified directory (i.e. files and subfolders), as well as the folder itself.
The "(OI)" and "(CI)" parameters also add recursion, applying these changes to sub-objects created subsequently.
.
ADDENDUM (2019/02/10) -
The Windows 10 command line above was kindly suggested to me today, so here it is. I haven't got Windows 10 to test it, but please try it out if you have (and then will you please post a comment below).
The change only concerns removing the DENY setting as a first step. There might well not be any DENY setting present, so that option might make no difference. My understanding is, on Windows 7, that you don't need to specify a user after /remove:d but I might be wrong about that!
.
ADDENDUM (2019/11/21) -
User astark recommends replacing Everyone with the term *S-1-1-0 in order for the command to be language independent. I only have an English install of Windows, so I can't test this proposal, but it seems reasonable.
Open Developer Tools
...
-> More Tools
-> Developer Tools
Click Empty Cache and Hard Reload
Before taking such drastic measures, quit Xcode and follow all the instructions here for cleaning out the caches:
How to Empty Caches and Clean All Targets Xcode 4
If that doesn't help, and you decide you really need a clean installation of Xcode, then, in addition to all of the stuff in that answer, trash the Xcode app itself, plus trash your ~/Library/Developer
folder and your ~/Library/Preferences/com.apple.dt.Xcode.plist
file. I think that should just about do it.
Here are the commands to restore the old behavior:
# create a script that calls launchctl iterating through /etc/launchd.conf
echo '#!/bin/sh
while read line || [[ -n $line ]] ; do launchctl $line ; done < /etc/launchd.conf;
' > /usr/local/bin/launchd.conf.sh
# make it executable
chmod +x /usr/local/bin/launchd.conf.sh
# launch the script at startup
echo '<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
<string>launchd.conf</string>
<key>ProgramArguments</key>
<array>
<string>sh</string>
<string>-c</string>
<string>/usr/local/bin/launchd.conf.sh</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
' > /Library/LaunchAgents/launchd.conf.plist
Now you can specify commands like setenv JAVA_HOME /Library/Java/Home
in /etc/launchd.conf
.
Checked on El Capitan.
I think it is not possible. Theoretically: select performs two sorts of things:
narrow/broaden the set (set-theory);
mapping the result.
The first one can be seen as a horizontal diminishing opposed to the where-clause which can be seen as a vertical diminishing. On the other hand, a join can augment the set horizontally where a union can augment the set vertically.
augmentation diminishing
horizontal join/select select
vertical union where/inner-join
The second one is a mapping. A mapping, is more a converter. In SQL it takes some fields and returns zero or more fields. In the select, you can use some aggregate functions like, sum, avg etc. Or take all the columnvalues an convert them to string. In C# linq, we say that a select accepts an object of type T and returns an object of type U.
I think the confusion comes by the fact that you can do: select 'howdy' from <table_name>
. This feature is the mapping, the converter part of the select. You are not printing something, but converting! In your example:
SELECT "
WHERE 1 = 1
you are converting nothing/null into "Hello world"
and you narrow the set of nothing / no table into one row, which, imho make no sense at all.
You may notice that, if you don't constrain the number of columns, "Hello world"
is printed for each available row in the table. I hope, you understand why by now. Your select takes nothing from the available columns and creates one column with the text: "Hello world"
.
So, my answer is NO. You can't just leave out the from-clause because the select always needs table-columns to perform on.
In addition to the answer of eldos I also needed gcc
in CentOS 7:
yum install libcurl-devel gcc
What is NOT so obvious is that you can use the following pattern to recursively search
./src/**/*.html
so perhaps leave the following as the default for most of your typical searches to remind that there is such a thing
./src/**/
For example I was after an attribute for left-right justify/docking content, I could not remember except "start" so I did the following search which reveals to me "item-start"
Something like this would do:
public static String[] names() {
String[] names = new String[values().length];
int index = 0;
for (State state : values()) {
names[index++] = state.name();
}
return names;
}
The documentation recommends using toString()
instead of name()
in most cases, but you have explicitly asked for the name here.
You mean something like this?
<?php
$jsonurl = "http://search.twitter.com/trends.json";
$json = file_get_contents($jsonurl,0,null,null);
$json_output = json_decode($json);
foreach ( $json_output->trends as $trend )
{
echo "{$trend->name}\n";
}
There is a vcvars32.bat in your Visual Studio installation directory. You can add call cmd.exe at the end of that batch program and launch it. From that shell you can use CMake or cmake-gui and cl.exe would be known to CMake.
Just modify one of the returned entities:
Customer c = (from x in dataBase.Customers
where x.Name == "Test"
select x).First();
c.Name = "New Name";
dataBase.SaveChanges();
Note, you can only update an entity (something that extends EntityObject, not something that you have projected using something like select new CustomObject{Name = x.Name}
You can archive it with a Service and Alarm Manager, but be careful with this, because if you setup a high priority you gonna drain the battery of the phone, in other hand, you really need notify the location every minute? This is because the only way to see a considerably change of the user location, it's traveling in a car or train. I only ask, because that gonna depend of you app and the requirement of the tracking.
You can to do it this way:
string Camnr = "", Klantnr = "", ... // or String.Empty
Or you could declare them all first and then in the next line use your way.
I set the NODEJS variable in the system control panel but the only thing that worked to set the path was to do it from command line as administrator.
SET PATH=%NODEJS%;%PATH%
Another trick is that once you set the path you must close the console and open a new one for the new path to be taken into account.
However for the regular user to be able to use node I had to run set path again not as admin and restart the computer
You can do like this
SELECT something
FROM
(a LEFT JOIN b ON a.a_id = b.b_id) LEFT JOIN c on a.a_aid = c.c_id
WHERE a.parent_id = 'rootID'
Another option:
import datetime
now=datetime.datetime.now()
now.isoformat()
# ouptut --> '2016-03-09T08:18:20.860968'
visit this link for reference:http://codepen.io/kalaiselvan/pen/RRBzda
<script>
var app=angular.module('formvalid', ['ui.bootstrap','ui.utils']);
app.controller('validationCtrl',function($scope){
$scope.data=[
[
"Tiger Nixon",
"System Architect",
"Edinburgh",
"5421",
"2011\/04\/25",
"$320,800"
],
[
"Garrett Winters",
"Accountant",
"Tokyo",
"8422",
"2011\/07\/25",
"$170,750"
],
[
"Ashton Cox",
"Junior Technical Author",
"San Francisco",
"1562",
"2009\/01\/12",
"$86,000"
],
[
"Cedric Kelly",
"Senior Javascript Developer",
"Edinburgh",
"6224",
"2012\/03\/29",
"$433,060"
],
[
"Airi Satou",
"Accountant",
"Tokyo",
"5407",
"2008\/11\/28",
"$162,700"
],
[
"Brielle Williamson",
"Integration Specialist",
"New York",
"4804",
"2012\/12\/02",
"$372,000"
],
[
"Herrod Chandler",
"Sales Assistant",
"San Francisco",
"9608",
"2012\/08\/06",
"$137,500"
],
[
"Rhona Davidson",
"Integration Specialist",
"Tokyo",
"6200",
"2010\/10\/14",
"$327,900"
],
[
"Colleen Hurst",
"Javascript Developer",
"San Francisco",
"2360",
"2009\/09\/15",
"$205,500"
],
[
"Sonya Frost",
"Software Engineer",
"Edinburgh",
"1667",
"2008\/12\/13",
"$103,600"
],
[
"Jena Gaines",
"Office Manager",
"London",
"3814",
"2008\/12\/19",
"$90,560"
],
[
"Quinn Flynn",
"Support Lead",
"Edinburgh",
"9497",
"2013\/03\/03",
"$342,000"
],
[
"Charde Marshall",
"Regional Director",
"San Francisco",
"6741",
"2008\/10\/16",
"$470,600"
],
[
"Haley Kennedy",
"Senior Marketing Designer",
"London",
"3597",
"2012\/12\/18",
"$313,500"
],
[
"Tatyana Fitzpatrick",
"Regional Director",
"London",
"1965",
"2010\/03\/17",
"$385,750"
],
[
"Michael Silva",
"Marketing Designer",
"London",
"1581",
"2012\/11\/27",
"$198,500"
],
[
"Paul Byrd",
"Chief Financial Officer (CFO)",
"New York",
"3059",
"2010\/06\/09",
"$725,000"
],
[
"Gloria Little",
"Systems Administrator",
"New York",
"1721",
"2009\/04\/10",
"$237,500"
],
[
"Bradley Greer",
"Software Engineer",
"London",
"2558",
"2012\/10\/13",
"$132,000"
],
[
"Dai Rios",
"Personnel Lead",
"Edinburgh",
"2290",
"2012\/09\/26",
"$217,500"
],
[
"Jenette Caldwell",
"Development Lead",
"New York",
"1937",
"2011\/09\/03",
"$345,000"
],
[
"Yuri Berry",
"Chief Marketing Officer (CMO)",
"New York",
"6154",
"2009\/06\/25",
"$675,000"
],
[
"Caesar Vance",
"Pre-Sales Support",
"New York",
"8330",
"2011\/12\/12",
"$106,450"
],
[
"Doris Wilder",
"Sales Assistant",
"Sidney",
"3023",
"2010\/09\/20",
"$85,600"
],
[
"Angelica Ramos",
"Chief Executive Officer (CEO)",
"London",
"5797",
"2009\/10\/09",
"$1,200,000"
],
[
"Gavin Joyce",
"Developer",
"Edinburgh",
"8822",
"2010\/12\/22",
"$92,575"
],
[
"Jennifer Chang",
"Regional Director",
"Singapore",
"9239",
"2010\/11\/14",
"$357,650"
],
[
"Brenden Wagner",
"Software Engineer",
"San Francisco",
"1314",
"2011\/06\/07",
"$206,850"
],
[
"Fiona Green",
"Chief Operating Officer (COO)",
"San Francisco",
"2947",
"2010\/03\/11",
"$850,000"
],
[
"Shou Itou",
"Regional Marketing",
"Tokyo",
"8899",
"2011\/08\/14",
"$163,000"
],
[
"Michelle House",
"Integration Specialist",
"Sidney",
"2769",
"2011\/06\/02",
"$95,400"
],
[
"Suki Burks",
"Developer",
"London",
"6832",
"2009\/10\/22",
"$114,500"
],
[
"Prescott Bartlett",
"Technical Author",
"London",
"3606",
"2011\/05\/07",
"$145,000"
],
[
"Gavin Cortez",
"Team Leader",
"San Francisco",
"2860",
"2008\/10\/26",
"$235,500"
],
[
"Martena Mccray",
"Post-Sales support",
"Edinburgh",
"8240",
"2011\/03\/09",
"$324,050"
],
[
"Unity Butler",
"Marketing Designer",
"San Francisco",
"5384",
"2009\/12\/09",
"$85,675"
],
[
"Howard Hatfield",
"Office Manager",
"San Francisco",
"7031",
"2008\/12\/16",
"$164,500"
],
[
"Hope Fuentes",
"Secretary",
"San Francisco",
"6318",
"2010\/02\/12",
"$109,850"
],
[
"Vivian Harrell",
"Financial Controller",
"San Francisco",
"9422",
"2009\/02\/14",
"$452,500"
],
[
"Timothy Mooney",
"Office Manager",
"London",
"7580",
"2008\/12\/11",
"$136,200"
],
[
"Jackson Bradshaw",
"Director",
"New York",
"1042",
"2008\/09\/26",
"$645,750"
],
[
"Olivia Liang",
"Support Engineer",
"Singapore",
"2120",
"2011\/02\/03",
"$234,500"
],
[
"Bruno Nash",
"Software Engineer",
"London",
"6222",
"2011\/05\/03",
"$163,500"
],
[
"Sakura Yamamoto",
"Support Engineer",
"Tokyo",
"9383",
"2009\/08\/19",
"$139,575"
],
[
"Thor Walton",
"Developer",
"New York",
"8327",
"2013\/08\/11",
"$98,540"
],
[
"Finn Camacho",
"Support Engineer",
"San Francisco",
"2927",
"2009\/07\/07",
"$87,500"
],
[
"Serge Baldwin",
"Data Coordinator",
"Singapore",
"8352",
"2012\/04\/09",
"$138,575"
],
[
"Zenaida Frank",
"Software Engineer",
"New York",
"7439",
"2010\/01\/04",
"$125,250"
],
[
"Zorita Serrano",
"Software Engineer",
"San Francisco",
"4389",
"2012\/06\/01",
"$115,000"
],
[
"Jennifer Acosta",
"Junior Javascript Developer",
"Edinburgh",
"3431",
"2013\/02\/01",
"$75,650"
],
[
"Cara Stevens",
"Sales Assistant",
"New York",
"3990",
"2011\/12\/06",
"$145,600"
],
[
"Hermione Butler",
"Regional Director",
"London",
"1016",
"2011\/03\/21",
"$356,250"
],
[
"Lael Greer",
"Systems Administrator",
"London",
"6733",
"2009\/02\/27",
"$103,500"
],
[
"Jonas Alexander",
"Developer",
"San Francisco",
"8196",
"2010\/07\/14",
"$86,500"
],
[
"Shad Decker",
"Regional Director",
"Edinburgh",
"6373",
"2008\/11\/13",
"$183,000"
],
[
"Michael Bruce",
"Javascript Developer",
"Singapore",
"5384",
"2011\/06\/27",
"$183,000"
],
[
"Donna Snider",
"Customer Support",
"New York",
"4226",
"2011\/01\/25",
"$112,000"
]
]
$scope.dataTableOpt = {
//if any ajax call
};
});
</script>
<div class="container" ng-app="formvalid">
<div class="panel" data-ng-controller="validationCtrl">
<div class="panel-heading border">
<h2>Data table using jquery datatable in Angularjs </h2>
</div>
<div class="panel-body">
<table class="table table-bordered bordered table-striped table-condensed datatable" ui-jq="dataTable" ui-options="dataTableOpt">
<thead>
<tr>
<th>#</th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start Date</th>
</tr>
</thead>
<tbody>
<tr ng-repeat="n in data">
<td>{{$index+1}}</td>
<td>{{n[0]}}</td>
<td>{{n[1]}}</td>
<td>{{n[2]}}</td>
<td>{{n[3]}}</td>
<td>{{n[4] | date:'dd/MM/yyyy'}}</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
Why not ?
Just modify your Main-Class
to receive arguments and act upon the argument.
public class wiki2txt {
public static void main(String[] args) {
String fileName = args[0];
// Use FileInputStream, BufferedReader etc here.
}
}
Specify the full path in the commandline.
java -jar wiki2txt /home/bla/enwiki-....xml
The problem I need to solve is to store contracts containing a few fields (address, book, num_of_days, borrower_addr, blk_data), blk_data is a transaction list (block number and transaction address). This question and answer helped me. I would like to share my code as below. Hope this helps.
- Schema definition. See blk_data.
var ContractSchema = new Schema(
{
address: {type: String, required: true, max: 100}, //contract address
// book_id: {type: String, required: true, max: 100}, //book id in the book collection
book: { type: Schema.ObjectId, ref: 'clc_books', required: true }, // Reference to the associated book.
num_of_days: {type: Number, required: true, min: 1},
borrower_addr: {type: String, required: true, max: 100},
// status: {type: String, enum: ['available', 'Created', 'Locked', 'Inactive'], default:'Created'},
blk_data: [{
tx_addr: {type: String, max: 100}, // to do: change to a list
block_number: {type: String, max: 100}, // to do: change to a list
}]
}
);
- Create a record for the collection in the MongoDB. See blk_data.
// Post submit a smart contract proposal to borrowing a specific book.
exports.ctr_contract_propose_post = [
// Validate fields
body('book_id', 'book_id must not be empty.').isLength({ min: 1 }).trim(),
body('req_addr', 'req_addr must not be empty.').isLength({ min: 1 }).trim(),
body('new_contract_addr', 'contract_addr must not be empty.').isLength({ min: 1 }).trim(),
body('tx_addr', 'tx_addr must not be empty.').isLength({ min: 1 }).trim(),
body('block_number', 'block_number must not be empty.').isLength({ min: 1 }).trim(),
body('num_of_days', 'num_of_days must not be empty.').isLength({ min: 1 }).trim(),
// Sanitize fields.
sanitizeBody('*').escape(),
// Process request after validation and sanitization.
(req, res, next) => {
// Extract the validation errors from a request.
const errors = validationResult(req);
if (!errors.isEmpty()) {
// There are errors. Render form again with sanitized values/error messages.
res.status(400).send({ errors: errors.array() });
return;
}
// Create a Book object with escaped/trimmed data and old id.
var book_fields =
{
_id: req.body.book_id, // This is required, or a new ID will be assigned!
cur_contract: req.body.new_contract_addr,
status: 'await_approval'
};
async.parallel({
//call the function get book model
books: function(callback) {
Book.findByIdAndUpdate(req.body.book_id, book_fields, {}).exec(callback);
},
}, function(error, results) {
if (error) {
res.status(400).send({ errors: errors.array() });
return;
}
if (results.books.isNew) {
// res.render('pg_error', {
// title: 'Proposing a smart contract to borrow the book',
// c: errors.array()
// });
res.status(400).send({ errors: errors.array() });
return;
}
var contract = new Contract(
{
address: req.body.new_contract_addr,
book: req.body.book_id,
num_of_days: req.body.num_of_days,
borrower_addr: req.body.req_addr
});
var blk_data = {
tx_addr: req.body.tx_addr,
block_number: req.body.block_number
};
contract.blk_data.push(blk_data);
// Data from form is valid. Save book.
contract.save(function (err) {
if (err) { return next(err); }
// Successful - redirect to new book record.
resObj = {
"res": contract.url
};
res.status(200).send(JSON.stringify(resObj));
// res.redirect();
});
});
},
];
- Update a record. See blk_data.
// Post lender accept borrow proposal.
exports.ctr_contract_propose_accept_post = [
// Validate fields
body('book_id', 'book_id must not be empty.').isLength({ min: 1 }).trim(),
body('contract_id', 'book_id must not be empty.').isLength({ min: 1 }).trim(),
body('tx_addr', 'tx_addr must not be empty.').isLength({ min: 1 }).trim(),
body('block_number', 'block_number must not be empty.').isLength({ min: 1 }).trim(),
// Sanitize fields.
sanitizeBody('*').escape(),
// Process request after validation and sanitization.
(req, res, next) => {
// Extract the validation errors from a request.
const errors = validationResult(req);
if (!errors.isEmpty()) {
// There are errors. Render form again with sanitized values/error messages.
res.status(400).send({ errors: errors.array() });
return;
}
// Create a Book object with escaped/trimmed data
var book_fields =
{
_id: req.body.book_id, // This is required, or a new ID will be assigned!
status: 'on_loan'
};
// Create a contract object with escaped/trimmed data
var contract_fields = {
$push: {
blk_data: {
tx_addr: req.body.tx_addr,
block_number: req.body.block_number
}
}
};
async.parallel({
//call the function get book model
book: function(callback) {
Book.findByIdAndUpdate(req.body.book_id, book_fields, {}).exec(callback);
},
contract: function(callback) {
Contract.findByIdAndUpdate(req.body.contract_id, contract_fields, {}).exec(callback);
},
}, function(error, results) {
if (error) {
res.status(400).send({ errors: errors.array() });
return;
}
if ((results.book.isNew) || (results.contract.isNew)) {
res.status(400).send({ errors: errors.array() });
return;
}
var resObj = {
"res": results.contract.url
};
res.status(200).send(JSON.stringify(resObj));
});
},
];
A suggestion - when using cross join please take care of the duplicate scenarios. For example in your case:
since there are common keys between these two tables (i.e. foreign keys in one/other) - we will end up with duplicate results. hence using the following form is good:
WITH data_mined_table (col1, col2, col3, etc....) AS
SELECT DISTINCT col1, col2, col3, blabla
FROM table_1 (NOLOCK), table_2(NOLOCK))
SELECT * from data_mined WHERE data_mined_table.col1 = :my_param_value
Starting with .net framework 4.6 / .net core 1.0, there is now a AppContext.BaseDirectory, which should give the same result as AppDomain.CurrentDomain.BaseDirectory
, except that AppDomains were not part of the .net core 1.x /.net standard 1.x API.
AppContext.BaseDirectory
You can user UIBezierPath Class for this:
And can draw as many lines as you want:
I have subclassed UIView :
@interface MyLineDrawingView()
{
NSMutableArray *pathArray;
NSMutableDictionary *dict_path;
CGPoint startPoint, endPoint;
}
@property (nonatomic,retain) UIBezierPath *myPath;
@end
And initialized the pathArray and dictPAth objects which will be used for line drawing. I am writing the main portion of the code from my own project:
- (void)drawRect:(CGRect)rect
{
for(NSDictionary *_pathDict in pathArray)
{
[((UIColor *)[_pathDict valueForKey:@"color"]) setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
[[_pathDict valueForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];
}
[[dict_path objectForKey:@"color"] setStroke]; // this method will choose the color from the receiver color object (in this case this object is :strokeColor)
[[dict_path objectForKey:@"path"] strokeWithBlendMode:kCGBlendModeNormal alpha:1.0];
}
touchesBegin method :
UITouch *touch = [touches anyObject];
startPoint = [touch locationInView:self];
myPath=[[UIBezierPath alloc]init];
myPath.lineWidth = currentSliderValue*2;
dict_path = [[NSMutableDictionary alloc] init];
touchesMoved Method:
UITouch *touch = [touches anyObject];
endPoint = [touch locationInView:self];
[myPath removeAllPoints];
[dict_path removeAllObjects];// remove prev object in dict (this dict is used for current drawing, All past drawings are managed by pathArry)
// actual drawing
[myPath moveToPoint:startPoint];
[myPath addLineToPoint:endPoint];
[dict_path setValue:myPath forKey:@"path"];
[dict_path setValue:strokeColor forKey:@"color"];
// NSDictionary *tempDict = [NSDictionary dictionaryWithDictionary:dict_path];
// [pathArray addObject:tempDict];
// [dict_path removeAllObjects];
[self setNeedsDisplay];
touchesEnded Method:
NSDictionary *tempDict = [NSDictionary dictionaryWithDictionary:dict_path];
[pathArray addObject:tempDict];
[dict_path removeAllObjects];
[self setNeedsDisplay];
Here is something that might help. Use the root privileges. if you have .bin then simply add the execution permission to the bin file.
chmod a+x jdk*.bin
next step is to run the .bin file which is simply
./jdk*.bin in the location you want to install.
you are done.
Simply omitting the attribute or element works well in less formal data.
If you need more sophisticated information, the GML schemas add the attribute nilReason, eg: in GeoSciML:
xsi:nil
with a value of "true" is used to indicate that no value is availablenilReason
may be used to record additional information for missing values; this may be one of the standard GML reasons (missing, inapplicable, withheld, unknown
), or text prepended by other:
, or may be a URI link to a more detailed explanation.When you are exchanging data, the role for which XML is commonly used, data sent to one recipient or for a given purpose may have content obscured that would be available to someone else who paid or had different authentication. Knowing the reason why content was missing can be very important.
Scientists also are concerned with why information is missing. For example, if it was dropped for quality reasons, they may want to see the original bad data.
With the Return statement from the proc, I needed to assign the temp variable and pass it to another stored procedure. The value was getting assigned fine but when passing it as a parameter, it lost the value. I had to create a temp table and set the variable from the table (SQL 2008)
From this:
declare @anID int
exec @anID = dbo.StoredProc_Fetch @ID, @anotherID, @finalID
exec dbo.ADifferentStoredProc @anID (no value here)
To this:
declare @t table(id int)
declare @anID int
insert into @t exec dbo.StoredProc_Fetch @ID, @anotherID, @finalID
set @anID= (select Top 1 * from @t)
In Angular (currently on Angular-6) .subscribe()
is a method on the Observable type. The Observable type is a utility that asynchronously or synchronously streams data to a variety of components or services that have subscribed to the observable.
The observable is an implementation/abstraction over the promise chain and will be a part of ES7 as a proposed and very supported feature. In Angular it is used internally due to rxjs being a development dependency.
An observable itself can be thought of as a stream of data coming from a source, in Angular this source is an API-endpoint, a service, a database or another observable. But the power it has is that it's not expecting a single response. It can have one or many values that are returned.
Link to rxjs for observable/subscribe docs here: https://rxjs-dev.firebaseapp.com/api/index/class/Observable#subscribe-
Subscribe takes 3 methods as parameters each are functions:
Within each of these, there is the potentional to pipe (or chain) other utilities called operators onto the results to change the form or perform some layered logic.
In the simple example above:
.subscribe(hero => this.hero = hero);
basically says on this observable take the hero being emitted and set it to this.hero
.
Adding this answer to give more context to Observables based off the documentation and my understanding.
You can either use .remove() on option elements:
.remove() : Remove the set of matched elements from the DOM.
$('#models option').remove(); or $('#models').remove('option');
or use .empty() on select:
.empty() : Remove all child nodes of the set of matched elements from the DOM.
$('#models').empty();
however to repopulate deleted options, you need to store the option while deleting.
You can also achieve the same using show/hide:
$("#models option").hide();
and later on to show them:
$("#models option").show();
Swift 2.2 Error Handling & capitalizedString Added :
func setFullName(fullName: String) {
var fullNameComponents = fullName.componentsSeparatedByString(" ")
self.fname = fullNameComponents.count > 0 ? fullNameComponents[0]: ""
self.sname = fullNameComponents.count > 1 ? fullNameComponents[1]: ""
self.fname = self.fname!.capitalizedString
self.sname = self.sname!.capitalizedString
}
This should work !!!
file_name
= Name of the file you want to split.
10000
= Number of rows each split file would contain
file_part_
= Prefix of split file name (file_part_0,file_part_1,file_part_2..etc goes on)
split -d -l 10000 file_name.csv file_part_
Open task manager -> Processes -> Click on .exe (Fibonacci.exe) -> End Process
if it doesn't work
Close eclipse IDE (or whatever IDE you use) and repeat step 1.
It's easy, you should set server http response header first. The problem is not with your front-end javascript code. You need to return this header:
Access-Control-Allow-Origin:*
or
Access-Control-Allow-Origin:your domain
In Apache config files, the code is like this:
Header set Access-Control-Allow-Origin "*"
In nodejs,the code is like this:
res.setHeader('Access-Control-Allow-Origin','*');
Someone here suggested using eval()
to remove the quotes from a string. Don't do that, that's just begging for code injection.
Another way to do this that I don't see listed here is using:
let message = JSON.stringify(your_json_here); // "Hello World"
console.log(JSON.parse(message)) // Hello World
You can use the AssemblyName
class to get the assembly name, provided you have the full name for the assembly:
AssemblyName.GetAssemblyName(Assembly.GetExecutingAssembly().FullName).Name
or
AssemblyName.GetAssemblyName(e.Source).Name
You can do this using the WITH clause of the SELECT statement:
;
WITH my_select As (SELECT ... FROM ...)
SELECT * FROM foo
WHERE id IN (SELECT MAX(id) FROM my_select GROUP BY name)
That's the ANSI/ISO SQL Syntax. I know that SQL Server, Oracle and DB2 support it. Not sure about the others...
Some edits to include the very relevant suggestions in the comments and in other answers. I'd like to note that the way you break on this depends a lot on what environment you plan to run in. Minimal embedded systems may not have enough resources to support dynamic linking. Slightly larger small systems may well support dynamic linking, because their memory is small enough to make the RAM savings from dynamic linking very attractive. Full blown consumer PCs have, as Mark notes, enormous resources, and you can probably let the convenience issues drive your thinking on this matter.
To address the performance and efficiency issues: it depends.
Classically, dynamic libraries require a some kind of glue layer which often means double dispatch or an extra layer of indirection in function addressing and can cost a little speed (but is function calling time actually a big part of your running time???).
However, if you are running multiple processes which all call the same library a lot, you can end up saving cache lines (and thus winning on running performance) when using dynamic linking relative to using static linking. (Unless modern OS's are smart enough to notice identical segments in statically linked binaries. Seems hard, anyone know?)
Another issue: loading time. You pay loading costs at some point. When you pay this cost depends on how the OS works as well as what linking you use. Maybe you'd rather put off paying it until you know you need it.
Note that static-vs-dynamic linking is traditionally not an optimization issue, because they both involve separate compilation down to object files. However, this is not required: a compiler can in principle, "compile" "static libraries" to a digested AST form initially, and "link" them by adding those ASTs to the ones generated for the main code, thus empowering global optimization. None of the systems I use do this, so I can't comment on how well it works.
The way to answer performance questions is always by testing (and use a test environment as much like the deployment environment as possible).
solution of TheSoftwareJedi works,
also you can archive it with using couple of value and nullable types:
static T? FindThing<T>(IList collection, int id) where T : struct, IThing
{
foreach T thing in collecion
{
if (thing.Id == id)
return thing;
}
return null;
}
$ npm run tsc -- --init
This worked for the below package.json
"devDependencies": {
"@types/jasmine": "^3.6.2",
"@types/node": "^14.14.19",
"jasmine": "^3.6.3",
"protractor": "^7.0.0",
"typescript": "^4.1.3"
},
I just had the same problem and I found out that if you are running your container with the -t
and -d
flag, it keeps running.
docker run -td <image>
Here is what the flags do (according to docker run --help
):
-d, --detach=false Run container in background and print container ID
-t, --tty=false Allocate a pseudo-TTY
The most important one is the -t
flag. -d
just lets you run the container in the background.
Use read_table(filepath)
. The default separator is tab
Simplest solution is mySql workBench just copy the .sql file text to query window of mysql-workbenck and just execute it, All renaming things will done by it.
If you only need the bool
result, just use the return value and ignore the out
parameter.
bool successfullyParsed = int.TryParse(str, out ignoreMe);
if (successfullyParsed){
// ...
}
Edit: Meanwhile you can also have a look at the original source code:
If i want to know how something is actually implemented, i'm using ILSpy
to decompile the .NET-code.
This is the result:
// int
/// <summary>Converts the string representation of a number to its 32-bit signed integer equivalent. A return value indicates whether the operation succeeded.</summary>
/// <returns>true if s was converted successfully; otherwise, false.</returns>
/// <param name="s">A string containing a number to convert. </param>
/// <param name="result">When this method returns, contains the 32-bit signed integer value equivalent to the number contained in s, if the conversion succeeded, or zero if the conversion failed. The conversion fails if the s parameter is null, is not of the correct format, or represents a number less than <see cref="F:System.Int32.MinValue"></see> or greater than <see cref="F:System.Int32.MaxValue"></see>. This parameter is passed uninitialized. </param>
/// <filterpriority>1</filterpriority>
public static bool TryParse(string s, out int result)
{
return Number.TryParseInt32(s, NumberStyles.Integer, NumberFormatInfo.CurrentInfo, out result);
}
// System.Number
internal unsafe static bool TryParseInt32(string s, NumberStyles style, NumberFormatInfo info, out int result)
{
byte* stackBuffer = stackalloc byte[1 * 114 / 1];
Number.NumberBuffer numberBuffer = new Number.NumberBuffer(stackBuffer);
result = 0;
if (!Number.TryStringToNumber(s, style, ref numberBuffer, info, false))
{
return false;
}
if ((style & NumberStyles.AllowHexSpecifier) != NumberStyles.None)
{
if (!Number.HexNumberToInt32(ref numberBuffer, ref result))
{
return false;
}
}
else
{
if (!Number.NumberToInt32(ref numberBuffer, ref result))
{
return false;
}
}
return true;
}
And no, i cannot see any Try-Catchs
on the road:
// System.Number
private unsafe static bool TryStringToNumber(string str, NumberStyles options, ref Number.NumberBuffer number, NumberFormatInfo numfmt, bool parseDecimal)
{
if (str == null)
{
return false;
}
fixed (char* ptr = str)
{
char* ptr2 = ptr;
if (!Number.ParseNumber(ref ptr2, options, ref number, numfmt, parseDecimal) || ((ptr2 - ptr / 2) / 2 < str.Length && !Number.TrailingZeros(str, (ptr2 - ptr / 2) / 2)))
{
return false;
}
}
return true;
}
// System.Number
private unsafe static bool ParseNumber(ref char* str, NumberStyles options, ref Number.NumberBuffer number, NumberFormatInfo numfmt, bool parseDecimal)
{
number.scale = 0;
number.sign = false;
string text = null;
string text2 = null;
string str2 = null;
string str3 = null;
bool flag = false;
string str4;
string str5;
if ((options & NumberStyles.AllowCurrencySymbol) != NumberStyles.None)
{
text = numfmt.CurrencySymbol;
if (numfmt.ansiCurrencySymbol != null)
{
text2 = numfmt.ansiCurrencySymbol;
}
str2 = numfmt.NumberDecimalSeparator;
str3 = numfmt.NumberGroupSeparator;
str4 = numfmt.CurrencyDecimalSeparator;
str5 = numfmt.CurrencyGroupSeparator;
flag = true;
}
else
{
str4 = numfmt.NumberDecimalSeparator;
str5 = numfmt.NumberGroupSeparator;
}
int num = 0;
char* ptr = str;
char c = *ptr;
while (true)
{
if (!Number.IsWhite(c) || (options & NumberStyles.AllowLeadingWhite) == NumberStyles.None || ((num & 1) != 0 && ((num & 1) == 0 || ((num & 32) == 0 && numfmt.numberNegativePattern != 2))))
{
bool flag2;
char* ptr2;
if ((flag2 = ((options & NumberStyles.AllowLeadingSign) != NumberStyles.None && (num & 1) == 0)) && (ptr2 = Number.MatchChars(ptr, numfmt.positiveSign)) != null)
{
num |= 1;
ptr = ptr2 - (IntPtr)2 / 2;
}
else
{
if (flag2 && (ptr2 = Number.MatchChars(ptr, numfmt.negativeSign)) != null)
{
num |= 1;
number.sign = true;
ptr = ptr2 - (IntPtr)2 / 2;
}
else
{
if (c == '(' && (options & NumberStyles.AllowParentheses) != NumberStyles.None && (num & 1) == 0)
{
num |= 3;
number.sign = true;
}
else
{
if ((text == null || (ptr2 = Number.MatchChars(ptr, text)) == null) && (text2 == null || (ptr2 = Number.MatchChars(ptr, text2)) == null))
{
break;
}
num |= 32;
text = null;
text2 = null;
ptr = ptr2 - (IntPtr)2 / 2;
}
}
}
}
c = *(ptr += (IntPtr)2 / 2);
}
int num2 = 0;
int num3 = 0;
while (true)
{
if ((c >= '0' && c <= '9') || ((options & NumberStyles.AllowHexSpecifier) != NumberStyles.None && ((c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'))))
{
num |= 4;
if (c != '0' || (num & 8) != 0)
{
if (num2 < 50)
{
number.digits[(IntPtr)(num2++)] = c;
if (c != '0' || parseDecimal)
{
num3 = num2;
}
}
if ((num & 16) == 0)
{
number.scale++;
}
num |= 8;
}
else
{
if ((num & 16) != 0)
{
number.scale--;
}
}
}
else
{
char* ptr2;
if ((options & NumberStyles.AllowDecimalPoint) != NumberStyles.None && (num & 16) == 0 && ((ptr2 = Number.MatchChars(ptr, str4)) != null || (flag && (num & 32) == 0 && (ptr2 = Number.MatchChars(ptr, str2)) != null)))
{
num |= 16;
ptr = ptr2 - (IntPtr)2 / 2;
}
else
{
if ((options & NumberStyles.AllowThousands) == NumberStyles.None || (num & 4) == 0 || (num & 16) != 0 || ((ptr2 = Number.MatchChars(ptr, str5)) == null && (!flag || (num & 32) != 0 || (ptr2 = Number.MatchChars(ptr, str3)) == null)))
{
break;
}
ptr = ptr2 - (IntPtr)2 / 2;
}
}
c = *(ptr += (IntPtr)2 / 2);
}
bool flag3 = false;
number.precision = num3;
number.digits[(IntPtr)num3] = '\0';
if ((num & 4) != 0)
{
if ((c == 'E' || c == 'e') && (options & NumberStyles.AllowExponent) != NumberStyles.None)
{
char* ptr3 = ptr;
c = *(ptr += (IntPtr)2 / 2);
char* ptr2;
if ((ptr2 = Number.MatchChars(ptr, numfmt.positiveSign)) != null)
{
c = *(ptr = ptr2);
}
else
{
if ((ptr2 = Number.MatchChars(ptr, numfmt.negativeSign)) != null)
{
c = *(ptr = ptr2);
flag3 = true;
}
}
if (c >= '0' && c <= '9')
{
int num4 = 0;
do
{
num4 = num4 * 10 + (int)(c - '0');
c = *(ptr += (IntPtr)2 / 2);
if (num4 > 1000)
{
num4 = 9999;
while (c >= '0' && c <= '9')
{
c = *(ptr += (IntPtr)2 / 2);
}
}
}
while (c >= '0' && c <= '9');
if (flag3)
{
num4 = -num4;
}
number.scale += num4;
}
else
{
ptr = ptr3;
c = *ptr;
}
}
while (true)
{
if (!Number.IsWhite(c) || (options & NumberStyles.AllowTrailingWhite) == NumberStyles.None)
{
bool flag2;
char* ptr2;
if ((flag2 = ((options & NumberStyles.AllowTrailingSign) != NumberStyles.None && (num & 1) == 0)) && (ptr2 = Number.MatchChars(ptr, numfmt.positiveSign)) != null)
{
num |= 1;
ptr = ptr2 - (IntPtr)2 / 2;
}
else
{
if (flag2 && (ptr2 = Number.MatchChars(ptr, numfmt.negativeSign)) != null)
{
num |= 1;
number.sign = true;
ptr = ptr2 - (IntPtr)2 / 2;
}
else
{
if (c == ')' && (num & 2) != 0)
{
num &= -3;
}
else
{
if ((text == null || (ptr2 = Number.MatchChars(ptr, text)) == null) && (text2 == null || (ptr2 = Number.MatchChars(ptr, text2)) == null))
{
break;
}
text = null;
text2 = null;
ptr = ptr2 - (IntPtr)2 / 2;
}
}
}
}
c = *(ptr += (IntPtr)2 / 2);
}
if ((num & 2) == 0)
{
if ((num & 8) == 0)
{
if (!parseDecimal)
{
number.scale = 0;
}
if ((num & 16) == 0)
{
number.sign = false;
}
}
str = ptr;
return true;
}
}
str = ptr;
return false;
}
Use a Comparator:
List<CustomObject> list = new ArrayList<CustomObject>();
Comparator<CustomObject> comparator = new Comparator<CustomObject>() {
@Override
public int compare(CustomObject left, CustomObject right) {
return left.getId() - right.getId(); // use your logic
}
};
Collections.sort(list, comparator); // use the comparator as much as u want
System.out.println(list);
Additionally, if CustomObject
implements Comparable
, then just use Collections.sort(list)
List<CustomObject> list = getCustomObjectList();
Collections.sort(list, (left, right) -> left.getId() - right.getId());
System.out.println(list);
Much simplier
List<CustomObject> list = getCustomObjectList();
list.sort((left, right) -> left.getId() - right.getId());
System.out.println(list);
Simplest
List<CustomObject> list = getCustomObjectList();
list.sort(Comparator.comparing(CustomObject::getId));
System.out.println(list);
Obviously the initial code can be used for JDK 8 too.
You can create an html page with a form, having method="post" and action="yourdesiredurl" and open it with your browser.
As an alternative, there are some browser plugins for developers that allow you to do that, like Web Developer Toolbar for Firefox
&&
and ||
take scalar inputs and short-circuit always. |
and &
take array inputs and short-circuit only in if/while statements. For assignment, the latter do not short-circuit.
See these doc pages for more information.
Trying to depict with venn diagrams for better understanding..
Left Semi join : A semi join returns values from the left side of the relation that has a match with the right. It is also referred to as a left semi join.
Note : There is another thing called left anti join : An anti join returns values from the left relation that has no match with the right. It is also referred to as a left anti join.
Inner join : It selects rows that have matching values in both relations.
If the checkbox is checked, then the checkbox's value will be passed. Otherwise, the field is not passed in the HTTP post.
if (isset($_POST['mycheckbox'])) {
echo "checked!";
}
Try this:
dt.Rows[RowNumber]["ColumnName"] = "Your value"
For example: if you want to add value 5 (number 5) to 1st row and column name "index" you would do this
dt.Rows[0]["index"] = 5;
I believe DataTable row starts with 0
public <T extends Iterable> T nullGuard(T item) {
if (item == null) {
return Collections.EmptyList;
} else {
return item;
}
}
or, if saving lines of text is a priority (it shouldn't be)
public <T extends Iterable> T nullGuard(T item) {
return (item == null) ? Collections.EmptyList : item;
}
would allow you to write
for (Object obj : nullGuard(list)) {
...
}
Of course, this really just moves the complexity elsewhere.
This is the way Visual Studio is designed: One solution, one Visual Studio (VS) instance.
Besides switching between solutions in one VS instance, you can also open another VS instance and open your other solution with that one. Next to solutions there are as you said "projects". You can have multiple projects within one solution and therefore view many projects at the same time.
I can confirm that this is not fixable by unregistering and registering the MSCOMCTRL.OCX like before. I have been trying to pin down which update is the source of the problem and it looks like it's either IE10 or IE10 in combination with some other update that's causing the problem. If I can get more time to invest in this I'll update my post but in the meantime uninstalling IE10 resolves the issue.
In your my.ini
, write this:
[mysqld]
sql_mode = "STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
depend on your version. Or:
[mysqld]
sql_mode = ""
or simply remove this: ONLY_FULL_GROUP_BY
Tried the options above on Ubuntu 14.04, but they would constantly produce this error:
npm ERR! tar pack Error reading /root/tmp/npm-15864/1465947804069-0.4854120113886893/package
Then found this solution online:
1) Clean the cache of npm first:
sudo npm cache clean -f
2) Install n module of npm:
sudo npm install -g n
3) Begin the installation by selecting the version of node to install: stable or latest, we will use stable here:
sudo n stable
4) Check the version of node:
node -v
5) Check the version of npm:
npm -v
Much worse than traversing twice, it creates an intermediary array of pairs.
You can use view
. When you do collection.view
, you can think of subsequent calls as acting lazily, during the iteration. If you want to get back a proper fully realized collection, you call force
at the end. Here that would be useless and costly. So change your code to
for((x,i) <- xs.view.zipWithIndex) println("String #" + i + " is " + x)
Check out all the DateTime methods here: http://msdn.microsoft.com/en-us/library/system.datetime.aspx
Add
Returns a new DateTime that adds the value of the specified TimeSpan to the value of this instance.
AddDays
Returns a new DateTime that adds the specified number of days to the value of this instance.
AddHours
Returns a new DateTime that adds the specified number of hours to the value of this instance.
AddMilliseconds
Returns a new DateTime that adds the specified number of milliseconds to the value of this instance.
AddMinutes
Returns a new DateTime that adds the specified number of minutes to the value of this instance.
AddMonths
Returns a new DateTime that adds the specified number of months to the value of this instance.
AddSeconds
Returns a new DateTime that adds the specified number of seconds to the value of this instance.
AddTicks
Returns a new DateTime that adds the specified number of ticks to the value of this instance.
AddYears
Returns a new DateTime that adds the specified number of years to the value of this instance.
Try this:-
<!DOCTYPE html>
<html>
<head>
<meta charset="ISO-8859-1">
<title>Online Student Portal</title>
</head>
<body>
<form action="">
<input type="button" value="Add Students" onclick="window.location.href='Students.html';"/>
<input type="button" value="Add Courses" onclick="window.location.href='Courses.html';"/>
<input type="button" value="Student Payments" onclick="window.location.href='Payment.html';"/>
</form>
</body>
</html>
No need to use a macro. Supposing your first string is in A1.
=RIGHT(A1, 4)
Drag this down and you will get your four last characters.
Edit: To be sure, if you ever have sequences like 'ABC DEF' and want the last four LETTERS and not CHARACTERS you might want to use trimspaces()
=RIGHT(TRIMSPACES(A1), 4)
Edit: As per brettdj's suggestion, you may want to check that your string is actually 4-character long or more:
=IF(TRIMSPACES(A1)>=4, RIGHT(TRIMSPACES(A1), 4), TRIMSPACES(A1))
According to Mozilla MDN: "The X-Forwarded-For (XFF) header is a de-facto standard header for identifying the originating IP address of a client."
They publish clear information in their X-Forwarded-For article.
This is already implemented in the runtime libs.
public static String calc(InputStream is) {
String output;
int read;
byte[] buffer = new byte[8192];
try {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
while ((read = is.read(buffer)) > 0) {
digest.update(buffer, 0, read);
}
byte[] hash = digest.digest();
BigInteger bigInt = new BigInteger(1, hash);
output = bigInt.toString(16);
while ( output.length() < 32 ) {
output = "0"+output;
}
}
catch (Exception e) {
e.printStackTrace(System.err);
return null;
}
return output;
}
In a JEE6+ environment one could also use JAXB DataTypeConverter:
import javax.xml.bind.DatatypeConverter;
String hash = DatatypeConverter.printHexBinary(
MessageDigest.getInstance("MD5").digest("SOMESTRING".getBytes("UTF-8")));
Define "stretch and scale"...
If you've got a bitmap format, it's generally not great (graphically speaking) to stretch it and pull it about. You can use repeatable patterns to give the illusion of the same effect. For instance if you have a gradient that gets lighter towards the bottom of the page, then you would use a graphic that's a single pixel wide and the same height as your container (or preferably larger to account for scaling) and then tile it across the page. Likewise, if the gradient ran across the page, it would be one pixel high and wider than your container and repeated down the page.
Normally to give the illusion of it stretching to fill the container when the container grows or shrinks, you make the image larger than the container. Any overlap would not be displayed outside the bounds of the container.
If you want an effect that relies on something like a box with curved edges, then you would stick the left side of your box to the left side of your container with enough overlap that (within reason) no matter how large the container, it never runs out of background and then you layer an image of the right side of the box with curved edges and position it on the right of the container. Thus as the container shrinks or grows, the curved box effect appears to shrink or grow with it - it doesn't in fact, but it gives the illusion that is what's happening.
As for really making the image shrink and grow with the container, you would need to use some layering tricks to make the image appear to function as a background and some javascript to resize it with the container. There's no current way of doing this with CSS...
If you're using vector graphics, you're way outside my realm of expertise I'm afraid.
sometimes you need to select some fields by FirstOrDefault()
or singleOrDefault()
you can use the below query:
List<ResultLine> result = Lines
.GroupBy(l => l.ProductCode)
.Select(cl => new Models.ResultLine
{
ProductName = cl.select(x=>x.Name).FirstOrDefault(),
Quantity = cl.Count().ToString(),
Price = cl.Sum(c => c.Price).ToString(),
}).ToList();
print
For your own classes, just def a __str__
method
SELECT teststring REGEXP '[[:alnum:]]+';
SELECT * FROM testtable WHERE test REGEXP '[[:alnum:]]+';
See: http://dev.mysql.com/doc/refman/5.1/en/regexp.html
Scroll down to the section that says: [:character_class:]
If you want to manipulate strings the fastest way will be to use a str_udf, see:
https://github.com/hholzgra/mysql-udf-regexp
The dict.items
iterates over the key-value pairs of a dictionary. Therefore for key, value in dictionary.items()
will loop over each pair. This is documented information and you can check it out in the official web page, or even easier, open a python console and type help(dict.items)
. And now, just as an example:
>>> d = {'hello': 34, 'world': 2999}
>>> for key, value in d.items():
... print key, value
...
world 2999
hello 34
The AttributeError
is an exception thrown when an object does not have the attribute you tried to access. The class dict
does not have any predictors
attribute (now you know where to check it :) ), and therefore it complains when you try to access it. As easy as that.
The cause of this error can be traced from Illuminate\View\Compilers\Compiler.php
public function __construct(Filesystem $files, $cachePath)
{
if (! $cachePath) {
throw new InvalidArgumentException('Please provide a valid cache path.');
}
$this->files = $files;
$this->cachePath = $cachePath;
}
The constructor is invoked by BladeCompiler in Illuminate\View\ViewServiceProvider
/**
* Register the Blade engine implementation.
*
* @param \Illuminate\View\Engines\EngineResolver $resolver
* @return void
*/
public function registerBladeEngine($resolver)
{
// The Compiler engine requires an instance of the CompilerInterface, which in
// this case will be the Blade compiler, so we'll first create the compiler
// instance to pass into the engine so it can compile the views properly.
$this->app->singleton('blade.compiler', function () {
return new BladeCompiler(
$this->app['files'], $this->app['config']['view.compiled']
);
});
$resolver->register('blade', function () {
return new CompilerEngine($this->app['blade.compiler']);
});
}
So, tracing back further, the following code:
$this->app['config']['view.compiled']
is generally located in your /config/view.php, if you use the standard laravel structure.
<?php
return [
/*
|--------------------------------------------------------------------------
| View Storage Paths
|--------------------------------------------------------------------------
|
| Most templating systems load templates from disk. Here you may specify
| an array of paths that should be checked for your views. Of course
| the usual Laravel view path has already been registered for you.
|
*/
'paths' => [
resource_path('views'),
],
/*
|--------------------------------------------------------------------------
| Compiled View Path
|--------------------------------------------------------------------------
|
| This option determines where all the compiled Blade templates will be
| stored for your application. Typically, this is within the storage
| directory. However, as usual, you are free to change this value.
|
*/
'compiled' => realpath(storage_path('framework/views')),
];
realpath(...) returns false, if the path does not exist. Thus, invoking
'Please provide a valid cache path.' error.
Therefore, to get rid of this error, what you can do is to ensure that
storage_path('framework/views')
or
/storage/framework/views
exists :)
>>> l = []
>>> l.__class__.__name__ in ('list', 'tuple')
True
using simpledateformat you can easily achieve it.
1) First convert string to java.Date using simpledateformatter.
2) Use getTime method to obtain count of millisecs from date
public class test {
public static void main(String[] args) {
String currentDate = "01-March-2016";
SimpleDateFormat f = new SimpleDateFormat("dd-MMM-yyyy");
Date parseDate = f.parse(currentDate);
long milliseconds = parseDate.getTime();
}
}
more Example click here
None of the answers address the issue of having children that are NOT React components, such as text strings. A workaround could be something like this:
// Render method of Parent component
render(){
let props = {
setAlert : () => {alert("It works")}
};
let childrenWithProps = React.Children.map( this.props.children, function(child) {
if (React.isValidElement(child)){
return React.cloneElement(child, props);
}
return child;
});
return <div>{childrenWithProps}</div>
}
!! Outdated answer, since CSS3 brought this feature
Is there a way to position a background image a certain number of pixels from the right of its element?
Nope.
Popular workarounds include
margin-right
on the element insteadtop right
I know this is an old post, but this problem still occurs fairly frequently. The simplest way I've found to resolve it is to rename/delete the .svn/all-wcprops file in the affected folder, then run an update and commit.
Changing keystore password
$ keytool -storepasswd -keystore keystorename
Enter keystore password: <old password>
New keystore password: <new password>
Re-enter new keystore password: <new password>
Changing keystore alias password
$keytool -keypasswd -keystore keystorename -alias aliasname
Enter keystore password:
New key password for <aliasname>:
Re-enter new key password for <aliasname>:
Note:
**Keystorename**: name of your keystore(with path if you are indifferent folder)
**aliasname**: alias name you used when creating (if name has space you can use \)
for example: $keytool -keypasswd -keystore keystorename -alias stop\ watch
I solved these kinds of problems using the webdrive manager.
You can automatically use the correct chromedriver by using the webdrive-manager. Install the webdrive-manager:
pip install webdriver-manager
Then use the driver in python as follows
from selenium import webdriver
from webdriver_manager.chrome import ChromeDriverManager
driver = webdriver.Chrome(ChromeDriverManager().install())
This answer is taken from https://stackoverflow.com/a/52878725/10741023
Assuming your string is s
:
'$' in s # found
'$' not in s # not found
# original answer given, but less Pythonic than the above...
s.find('$')==-1 # not found
s.find('$')!=-1 # found
And so on for other characters.
... or
pattern = re.compile(r'\d\$,')
if pattern.findall(s):
print('Found')
else
print('Not found')
... or
chars = set('0123456789$,')
if any((c in chars) for c in s):
print('Found')
else:
print('Not Found')
[Edit: added the '$' in s
answers]
If you are using rbenv then make sure that you run the "rbenv rehash" command after you set local or global ruby version. It solved the issue for me.
rbenv rehash
With the background-size property in those browsers which support this very new feature of CSS.