For someone looking to solve same by using maven. Add below dependency in POM:
<dependency>
<groupId>com.microsoft.sqlserver</groupId>
<artifactId>mssql-jdbc</artifactId>
<version>7.0.0.jre8</version>
</dependency>
And use below code for connection:
String connectionUrl = "jdbc:sqlserver://localhost:1433;databaseName=master;user=sa;password=your_password";
try {
System.out.print("Connecting to SQL Server ... ");
try (Connection connection = DriverManager.getConnection(connectionUrl)) {
System.out.println("Done.");
}
} catch (Exception e) {
System.out.println();
e.printStackTrace();
}
Look for this link for other CRUD type of queries.
If you want list of error messages met in Sql server, you can see with
SELECT *
FROM master.dbo.sysmessages
I encountered this error once after omitting this statement from my transaction.
COMMIT TRANSACTION [MyTransactionName]
In date '?'
, the '?'
is a literal string with value ?
, not a parameter placeholder, so your query does not have any parameters. The date
is a shorthand cast from (literal) string to date. You need to replace date '?'
with ?
to actually have a parameter.
Also if you know it is a date, then use setDate(..)
and not setString(..)
to set the parameter.
I think the best way to work with dates between C# and SQL is, of course, use parametrized queries, and always work with DateTime objects on C# and the ToString() formating options it provides.
You better execute set datetime <format>
(here you have the set dateformat explanation on MSDN) before working with dates on SQL Server so you don't get in trouble, like for example set datetime ymd
. You only need to do it once per connection because it mantains the format while open, so a good practice would be to do it just after openning the connection to the database.
Then, you can always work with 'yyyy-MM-dd HH:mm:ss:ffff' formats.
To pass the DateTime object to your parametrized query you can use DateTime.ToString('yyyy-MM-dd HH:mm:ss:ffff')
.
For parsing weird formatted dates on C# you can use DateTime.ParseExact()
method, where you have the option to specify exactly what the input format is: DateTime.ParseExact(<some date string>, 'dd/MM-yyyy',CultureInfo.InvariantCulture)
. Here you have the DateTime.ParseExact() explanation on MSDN)
The next()
method (offcial doc here) simply move the pointer of the result rows set to the next row (if it can). Anyway you can read this from the offcial doc as well:
Moves the cursor down one row from its current position.
This method return true if there's another row or false otherwise.
I faced the same issue and solved it by setting the Collation to utf8_general_ci for each column.
To further add missing points here, as per the request by Jaskey
Database version is stored within the SQLite
database file.
catch is the constructor
SQLiteOpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version)
So when the database helper constructor is called with a name
(2nd param), platform checks if the database exists or not and if the database exists, it gets the version information from the database file header and triggers the right call back
As already explained in the older answer, if the database with the name doesn't exists, it triggers onCreate
.
Below explanation explains onUpgrade
case with an example.
Say, your first version of application had the DatabaseHelper
(extending SQLiteOpenHelper
) with constructor passing version as 1
and then you provided an upgraded application with the new source code having version passed as 2
, then automatically when the DatabaseHelper
is constructed, platform triggers onUpgrade
by seeing the file already exists, but the version is lower than the current version which you have passed.
Now say you are planing to give a third version of application with db version as 3
(db version is increased only when database schema is to be modified). In such incremental upgrades, you have to write the upgrade logic from each version incrementally for a better maintainable code
Example pseudo code below:
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
switch(oldVersion) {
case 1:
//upgrade logic from version 1 to 2
case 2:
//upgrade logic from version 2 to 3
case 3:
//upgrade logic from version 3 to 4
break;
default:
throw new IllegalStateException(
"onUpgrade() with unknown oldVersion " + oldVersion);
}
}
Notice the missing break
statement in case 1
and 2
. This is what I mean by incremental upgrade.
Say if the old version is 2
and new version is 4
, then the logic will upgrade the database from 2
to 3
and then to 4
If old version is 3
and new version is 4
, it will just run the upgrade logic for 3
to 4
I can give you two advices:
The only way to get the iOS dictation is to sign up yourself through Nuance: http://dragonmobile.nuancemobiledeveloper.com/ - it's expensive, because it's the best. Presumably, Apple's contract prevents them from exposing an API.
The built in iOS accessibility features allow immobilized users to access dictation (and other keyboard buttons) through tools like VoiceOver and Assistive Touch. It may not be worth reinventing this if your users might be familiar with these tools.
With Guava do this:
String id="/abc/def/ghfj.doc";
String valIfSplitIsEmpty="";
return Iterables.getLast(Splitter.on("/").split(id),valIfSplitIsEmpty);
Eventually configure the Splitter
and use
Splitter.on("/")
.trimResults()
.omitEmptyStrings()
...
Also take a look into this article on guava Splitter and this article on guava Iterables
You can do this method: "IntSummaryStatistics"
IntSummaryStatistics insum = li.stream().filter(v-> v%2==0).mapToInt(mapper->mapper).summaryStatistics();
Yes, it is not required and is usually omitted. It might be required for accessing variables after they have been overridden in the scope though:
Person::Person() {
int age;
this->age = 1;
}
Also, this:
Person::Person(int _age) {
age = _age;
}
It is pretty bad style; if you need an initializer with the same name use this notation:
Person::Person(int age) : age(age) {}
More info here: https://en.cppreference.com/w/cpp/language/initializer_list
USE TIMESTAMPDIFF
MySQL function. For example, you can use:
SELECT TIMESTAMPDIFF(SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18')
In your case, the third parameter of TIMSTAMPDIFF
function would be the current login time (NOW()
). Second parameter would be the last login time, which is already in the database.
The best way to handle the LazyInitializationException
is to use the JOIN FETCH
directive:
Query query = session.createQuery("""
select m
from Model m
join fetch m.modelType
where modelGroup.id = :modelGroupId
"""
);
Anyway, DO NOT use the following Anti-Patterns as suggested by some of the answers:
Sometimes, a DTO projection is a better choice than fetching entities, and this way, you won't get any LazyInitializationException
.
You can scale the image with pygame.transform.scale
:
import pygame
picture = pygame.image.load(filename)
picture = pygame.transform.scale(picture, (1280, 720))
You can then get the bounding rectangle of picture
with
rect = picture.get_rect()
and move the picture with
rect = rect.move((x, y))
screen.blit(picture, rect)
where screen
was set with something like
screen = pygame.display.set_mode((1600, 900))
To allow your widgets to adjust to various screen sizes, you could make the display resizable:
import os
import pygame
from pygame.locals import *
pygame.init()
screen = pygame.display.set_mode((500, 500), HWSURFACE | DOUBLEBUF | RESIZABLE)
pic = pygame.image.load("image.png")
screen.blit(pygame.transform.scale(pic, (500, 500)), (0, 0))
pygame.display.flip()
while True:
pygame.event.pump()
event = pygame.event.wait()
if event.type == QUIT:
pygame.display.quit()
elif event.type == VIDEORESIZE:
screen = pygame.display.set_mode(
event.dict['size'], HWSURFACE | DOUBLEBUF | RESIZABLE)
screen.blit(pygame.transform.scale(pic, event.dict['size']), (0, 0))
pygame.display.flip()
It waits for client.GetAsync("aaaaa");
, but doesn't wait for result = Print(x)
Try responseTask.ContinueWith(x => result = Print(x)).Wait()
--EDIT--
Task responseTask = Task.Run(() => {
Thread.Sleep(1000);
Console.WriteLine("In task");
});
responseTask.ContinueWith(t=>Console.WriteLine("In ContinueWith"));
responseTask.Wait();
Console.WriteLine("End");
Above code doesn't guarantee the output:
In task
In ContinueWith
End
But this does (see the newTask
)
Task responseTask = Task.Run(() => {
Thread.Sleep(1000);
Console.WriteLine("In task");
});
Task newTask = responseTask.ContinueWith(t=>Console.WriteLine("In ContinueWith"));
newTask.Wait();
Console.WriteLine("End");
#header {
margin: 0;
padding: 0;
width: 100%;
background: xxxx;
}
#header #content {
margin: 0px auto;
width: 800px; /* or whatever */
}
<div id="header">
<div id="content">
stuff here
</div>
</div>
You Can Use [AllowHtml]
To Your Project For Example
[AllowHtml]
public string Description { get; set; }
For Use This Code To Class Library You Instal This Package
Install-Package Microsoft.AspNet.Mvc
After Use This using
using System.Web.Mvc;
Non of the above worked for me using the IUS repo for CentOS 7 with PHP 7.2:
php -v
> PHP 7.2.30 (cli) (built: Apr 19 2020 00:32:29) ( NTS )
php -r 'echo session_save_path(), "\n";
>
php -r 'echo sys_get_temp_dir(), "\n";'
> /tmp
However, sessions weren't saved in the /tmp
folder, but in the /var/lib/php/mod_php/session/
folder:
ls /var/lib/php/mod_php/session/
> sess_3cebqoq314pcnc2jgqiu840h0k sess_ck5dtaerol28fpctj6nutbn6fn sess_i24lgt2v2l58op5kfmj1k6qb3h sess_nek5q1alop8fkt84gliie91703
> sess_9ff74f4q5ihccnv6com2a8409t sess_dvrt9fmfuolr8bqt9efdpcbj0d sess_igdaksn26hm1s5nfvtjfb53pl7 sess_tgf5b7gkgno8kuvl966l9ce7nn
You can simplify the 5 through 21 part:
=IF(E9>21,"Text1",IF(E9>4,"Text2","Text3"))
You can get a generator of all the values in the dictionary, then cast it to a list and use the sum() function to get the sum of all the values.
Example:
c={"a":123,"b":4,"d":4,"c":-1001,"x":2002,"y":1001}
sum(list(c.values()))
while (i<n) {
bool shouldBreakOuter = false;
for (int j=i + 1; j<n; ++j) {
if (someCondition) {
shouldBreakOuter = true;
}
}
if (shouldBreakOuter == true)
break;
}
I just wrote a Cli helper to deal with Unix/windows easily.
Javascript:
define(["require", "exports"], function (require, exports) {
/**
* Helper to use the Command Line Interface (CLI) easily with both Windows and Unix environments.
* Requires underscore or lodash as global through "_".
*/
var Cli = (function () {
function Cli() {}
/**
* Execute a CLI command.
* Manage Windows and Unix environment and try to execute the command on both env if fails.
* Order: Windows -> Unix.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success.
* @param callbackErrorWindows Failure on Windows env.
* @param callbackErrorUnix Failure on Unix env.
*/
Cli.execute = function (command, args, callback, callbackErrorWindows, callbackErrorUnix) {
if (typeof args === "undefined") {
args = [];
}
Cli.windows(command, args, callback, function () {
callbackErrorWindows();
try {
Cli.unix(command, args, callback, callbackErrorUnix);
} catch (e) {
console.log('------------- Failed to perform the command: "' + command + '" on all environments. -------------');
}
});
};
/**
* Execute a command on Windows environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success callback.
* @param callbackError Failure callback.
*/
Cli.windows = function (command, args, callback, callbackError) {
if (typeof args === "undefined") {
args = [];
}
try {
Cli._execute(process.env.comspec, _.union(['/c', command], args));
callback(command, args, 'Windows');
} catch (e) {
callbackError(command, args, 'Windows');
}
};
/**
* Execute a command on Unix environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success callback.
* @param callbackError Failure callback.
*/
Cli.unix = function (command, args, callback, callbackError) {
if (typeof args === "undefined") {
args = [];
}
try {
Cli._execute(command, args);
callback(command, args, 'Unix');
} catch (e) {
callbackError(command, args, 'Unix');
}
};
/**
* Execute a command no matters what's the environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @private
*/
Cli._execute = function (command, args) {
var spawn = require('child_process').spawn;
var childProcess = spawn(command, args);
childProcess.stdout.on("data", function (data) {
console.log(data.toString());
});
childProcess.stderr.on("data", function (data) {
console.error(data.toString());
});
};
return Cli;
})();
exports.Cli = Cli;
});
Typescript original source file:
/**
* Helper to use the Command Line Interface (CLI) easily with both Windows and Unix environments.
* Requires underscore or lodash as global through "_".
*/
export class Cli {
/**
* Execute a CLI command.
* Manage Windows and Unix environment and try to execute the command on both env if fails.
* Order: Windows -> Unix.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success.
* @param callbackErrorWindows Failure on Windows env.
* @param callbackErrorUnix Failure on Unix env.
*/
public static execute(command: string, args: string[] = [], callback ? : any, callbackErrorWindows ? : any, callbackErrorUnix ? : any) {
Cli.windows(command, args, callback, function () {
callbackErrorWindows();
try {
Cli.unix(command, args, callback, callbackErrorUnix);
} catch (e) {
console.log('------------- Failed to perform the command: "' + command + '" on all environments. -------------');
}
});
}
/**
* Execute a command on Windows environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success callback.
* @param callbackError Failure callback.
*/
public static windows(command: string, args: string[] = [], callback ? : any, callbackError ? : any) {
try {
Cli._execute(process.env.comspec, _.union(['/c', command], args));
callback(command, args, 'Windows');
} catch (e) {
callbackError(command, args, 'Windows');
}
}
/**
* Execute a command on Unix environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @param callback Success callback.
* @param callbackError Failure callback.
*/
public static unix(command: string, args: string[] = [], callback ? : any, callbackError ? : any) {
try {
Cli._execute(command, args);
callback(command, args, 'Unix');
} catch (e) {
callbackError(command, args, 'Unix');
}
}
/**
* Execute a command no matters what's the environment.
*
* @param command Command to execute. ('grunt')
* @param args Args of the command. ('watch')
* @private
*/
private static _execute(command, args) {
var spawn = require('child_process').spawn;
var childProcess = spawn(command, args);
childProcess.stdout.on("data", function (data) {
console.log(data.toString());
});
childProcess.stderr.on("data", function (data) {
console.error(data.toString());
});
}
}
Example of use:
Cli.execute(Grunt._command, args, function (command, args, env) {
console.log('Grunt has been automatically executed. (' + env + ')');
}, function (command, args, env) {
console.error('------------- Windows "' + command + '" command failed, trying Unix... ---------------');
}, function (command, args, env) {
console.error('------------- Unix "' + command + '" command failed too. ---------------');
});
Your question seems to be solved, but ...
I'm not sure if you take the right solution for your problem.
I suppose you try to compress each day the actual project code.
It's possible with ZIP and 1980 this was a good solution, but today you should use a repository system, like subversion or git or ..., but not a zip-file.
Ok, perhaps it could be that I'm wrong.
I have a dialog that I wrote called an OpenFileOrFolder dialog that allows you to open either a folder or a file.
If you set its AcceptFiles value to false, then it operates in only accept folder mode.
Just to make a proper answer from the @Eddy Hernandez's comment and which is very correct since Alpine comes with ash not bash.
The question now referes to Starting a shell in the Docker Alpine container which implies using sh
or ash
or /bin/sh
or /bin/ash/
.
Based on the OP's question:
docker run image sh -c "cd /path/to/somewhere && python a.py"
Do you really need to do that programmatically?
Just considering the title: You could use a ShapeDrawable as android:background…
For example, let's define res/drawable/my_custom_background.xml
as:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners
android:radius="2dp"
android:topRightRadius="0dp"
android:bottomRightRadius="0dp"
android:bottomLeftRadius="0dp" />
<stroke
android:width="1dp"
android:color="@android:color/white" />
</shape>
and define android:background="@drawable/my_custom_background".
I've not tested but it should work.
Update:
I think that's better to leverage the xml shape drawable resource power if that fits your needs. With a "from scratch" project (for android-8), define res/layout/main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/border"
android:padding="10dip" >
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello World, SOnich"
/>
[... more TextView ...]
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Hello World, SOnich"
/>
</LinearLayout>
and a res/drawable/border.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<stroke
android:width="5dip"
android:color="@android:color/white" />
</shape>
Reported to work on a gingerbread device. Note that you'll need to relate android:padding
of the LinearLayout to the android:width
shape/stroke's value. Please, do not use @android:color/white
in your final application but rather a project defined color.
You could apply android:background="@drawable/border" android:padding="10dip"
to each of the LinearLayout from your provided sample.
As for your other posts related to display some circles as LinearLayout's background, I'm playing with Inset/Scale/Layer drawable resources (see Drawable Resources for further information) to get something working to display perfect circles in the background of a LinearLayout but failed at the moment…
Your problem resides clearly in the use of getBorder.set{Width,Height}(100);
. Why do you do that in an onClick method?
I need further information to not miss the point: why do you do that programmatically? Do you need a dynamic behavior? Your input drawables are png or ShapeDrawable is acceptable? etc.
To be continued (maybe tomorrow and as soon as you provide more precisions on what you want to achieve)…
Querying across 2 different databases is a distributed query. Here is a list of some techniques plus the pros and cons:
See this post https://bugs.mysql.com/bug.php?id=67917 Sometimes a temp directory is missing. I had the same error like "InnoDB: Error: unable to create temporary file; errno: 2"
Note: No, this isn't true. At some point there was a comment on this answer from Dan Piponi himself saying that the cause and effect here was exactly the opposite, that he wrote his article in response to James Iry's quip. But it seems to have been removed, perhaps by some compulsive tidier.
Below is my original answer.
It's quite possible that Iry had read From Monoids to Monads, a post in which Dan Piponi (sigfpe) derives monads from monoids in Haskell, with much discussion of category theory and explicit mention of "the category of endofunctors on Hask" . In any case, anyone who wonders what it means for a monad to be a monoid in the category of endofunctors might benefit from reading this derivation.
I think this works better in PHP 5.5+
$IdVar = array_column($data, 'id');
Try this,
public static Double[][] multiplicar(Double A[][],Double B[][]){
Double[][] C= new Double[2][2];
int i,j,k;
for (i = 0; i < 2; i++) {
for (j = 0; j < 2; j++) {
C[i][j] = 0.00000;
}
}
for(i=0;i<2;i++){
for(j=0;j<2;j++){
for (k=0;k<2;k++){
C[i][j]+=(A[i][k]*B[k][j]);
}
}
}
return C;
}
you could determine if an object is wrapper type by beneath statements:
***objClass.isAssignableFrom(Number.class);***
and you could also determine a primitive object by using the isPrimitive() method
Do note that it needs to be in the numeric data type in the first place.
import pandas as pd
df['column'] = pd.to_numeric(df['column'], errors='coerce')
Next find the mean on one column or for all numeric columns using describe()
.
df['column'].mean()
df.describe()
Example of result from describe:
column
count 62.000000
mean 84.678548
std 216.694615
min 13.100000
25% 27.012500
50% 41.220000
75% 70.817500
max 1666.860000
Using a UINavigationController
and setting its navigation bar's barStyle
to .Black
. past this line in your AppDelegate.m
file.
navigationController.navigationBar.barStyle = UIBarStyleBlack;
If you are not using UINavigationController
then add following code in your ViewController.m
file.
- (UIStatusBarStyle)preferredStatusBarStyle
{
return UIStatusBarStyleLightContent;
}
And call the method to this line :
[self setNeedsStatusBarAppearanceUpdate];
I tried this in my Angular project and it worked fine without jQuery.
<input type='text' ng-paste='preventPaste($event)'>
And in script part:
$scope.preventPaste = function(e){
e.preventDefault();
return false;
};
In non angular project, use 'onPaste' instead of 'ng-paste' and 'event' instesd of '$event'.
You can use aggregate, too:
db.accommodations.aggregate(
[
{$project: {_id:1, name:1, zipcode:1,
size_of_name: {$size: "$name"}
}
},
{$match: {"size_of_name": {$gt: 1}}}
])
// you add "size_of_name" to transit document and use it to filter the size of the name
mod_rewrite can only rewrite/redirect requested URIs. So you would need to request /apple/…
to get it rewritten to a corresponding /folder1/…
.
Try this:
RewriteEngine on
RewriteRule ^apple/(.*) folder1/$1
This rule will rewrite every request that starts with the URI path /apple/…
internally to /folder1/…
.
Edit As you are actually looking for the other way round:
RewriteCond %{THE_REQUEST} ^GET\ /folder1/
RewriteRule ^folder1/(.*) /apple/$1 [L,R=301]
This rule is designed to work together with the other rule above. Requests of /folder1/…
will be redirected externally to /apple/…
and requests of /apple/…
will then be rewritten internally back to /folder1/…
.
ngInit
can help to initialize variables.
<div ng-app='app'>
<div ng-controller="MyController" ng-init="myVar='test'">
{{myVar}}
</div>
</div>
Linker errors can happen when a header file and its associated shared library (.lib file) go out of sync. Let me explain.
How do linkers work? The linker matches a function declaration (declared in the header) with its definition (in the shared library) by comparing their signatures. You can get a linker error if the linker doesn't find a function definition that matches perfectly.
Is it possible to still get a linker error even though the declaration and the definition seem to match? Yes! They might look the same in source code, but it really depends on what the compiler sees. Essentially you could end up with a situation like this:
// header1.h
typedef int Number;
void foo(Number);
// header2.h
typedef float Number;
void foo(Number); // this only looks the same lexically
Note how even though both the function declarations look identical in source code, but they are really different according to the compiler.
You might ask how one ends up in a situation like that? Include paths of course! If when compiling the shared library, the include path leads to header1.h
and you end up using header2.h
in your own program, you'll be left scratching your header wondering what happened (pun intended).
An example of how this can happen in the real world is explained below.
I have two projects: graphics.lib
and main.exe
. Both projects depend on common_math.h
. Suppose the library exports the following function:
// graphics.lib
#include "common_math.h"
void draw(vec3 p) { ... } // vec3 comes from common_math.h
And then you go ahead and include the library in your own project.
// main.exe
#include "other/common_math.h"
#include "graphics.h"
int main() {
draw(...);
}
Boom! You get a linker error and you have no idea why it's failing. The reason is that the common library uses different versions of the same include common_math.h
(I have made it obvious here in the example by including a different path, but it might not always be so obvious. Maybe the include path is different in the compiler settings).
Note in this example, the linker would tell you it couldn't find draw()
, when in reality you know it obviously is being exported by the library. You could spend hours scratching your head wondering what went wrong. The thing is, the linker sees a different signature because the parameter types are slightly different. In the example, vec3
is a different type in both projects as far as the compiler is concerned. This could happen because they come from two slightly different include files (maybe the include files come from two different versions of the library).
DUMPBIN is your friend, if you are using Visual Studio. I'm sure other compilers have other similar tools.
The process goes like this:
[1] By project I mean a set of source files that are linked together to produce either a library or an executable.
EDIT 1: Rewrote first section to be easier to understand. Please comment below to let me know if something else needs to be fixed. Thanks!
What you need is to map your array of objects and remember that every item will be an object, so that you will use for instance dot notation to take the values of the object.
In your component
[
{
name: 'Sam',
email: '[email protected]'
},
{
name: 'Ash',
email: '[email protected]'
}
].map((anObjectMapped, index) => {
return (
<p key={`${anObjectMapped.name}_{anObjectMapped.email}`}>
{anObjectMapped.name} - {anObjectMapped.email}
</p>
);
})
And remember when you put an array of jsx it has a different meaning and you can not just put object in your render method as you can put an array.
Take a look at my answer at mapping an array to jsx
if ($handle = opendir('.')) {
while (false !== ($file = readdir($handle)))
{
if ($file != "." && $file != ".." && strtolower(substr($file, strrpos($file, '.') + 1)) == 'xml')
{
$thelist .= '<li><a href="'.$file.'">'.$file.'</a></li>';
}
}
closedir($handle);
}
A simple way to look at the extension using substr and strrpos
The werkzeug debugger already has an 'auto reload' function available that can be enabled by doing one of the following:
app.run(debug=True)
or
app.debug = True
You can also use a separate configuration file to manage all your setup if you need be. For example I use 'settings.py' with a 'DEBUG = True' option. Importing this file is easy too;
app.config.from_object('application.settings')
However this is not suitable for a production environment.
Personally I chose Nginx + uWSGI over Apache + mod_wsgi for a few performance reasons but also the configuration options. The touch-reload option allows you to specify a file/folder that will cause the uWSGI application to reload your newly deployed flask app.
For example, your update script pulls your newest changes down and touches 'reload_me.txt' file. Your uWSGI ini script (which is kept up by Supervisord - obviously) has this line in it somewhere:
touch-reload = '/opt/virtual_environments/application/reload_me.txt'
I hope this helps!
You can use my plugin waitForImages to handle this...
$(document).waitForImages(function() {
// Loaded.
});
The advantage of this is you can localise it to one ancestor element and it can optionally detect images referenced in the CSS.
This is just the tip of the iceberg though, check the documentation for more functionality.
If you can change the shell used to run the command, you can use ZSH to do the job.
#!/usr/bin/zsh
for file in /tmp/**/*
do
echo $file
done
This will recursively loop through all files/folders.
You can make use of the plusMonths and minusDays methods in Java 8:
// Parse your date into a LocalDate
LocalDate parsed = LocalDate.parse("1/13/2012", DateTimeFormatter.ofPattern("M/d/yyyy"));
// We only care about its year and month, set the date to first date of that month
LocalDate localDate = LocalDate.of(parsed.getYear(), parsed.getMonth(), 1);
// Add one month, subtract one day
System.out.println(localDate.plusMonths(1).minusDays(1)); // 2012-01-31
Do this by either going to my computer and then right clicking the background for the context menu > "properties". On the left side open "advanced system settings" or just search for "env..." in start menu ([Win]+[s] keys).
Then click on environment variables
If you struggle with this step read this explanation.
D:\path\to\anaconda3
D:\path\to\anaconda3\Scripts
D:\path\to\anaconda3\Library\bin
D:\path\to\anaconda3
should be the folder where you have installed anaconda
Click [OK] on all opened windows.
If you did everything correctly, you can test a conda
command by opening a new powershell window.
conda --version
This should output something like: conda 4.8.2
One of the best semi solutions is to copy %1
into a variable and then use delayed expansion, as delayedExp. is always safe against any content.
set "param1=%~1"
setlocal EnableDelayedExpansion
if "!param1!"=="" ( echo it is empty )
rem ... or use the DEFINED keyword now
if defined param1 echo There is something
The advantage of this is that dealing with param1 is absolutly safe.
And the setting of param1 will work in many cases, like
test.bat hello"this is"a"test
test.bat you^&me
But it still fails with strange contents like
test.bat ^&"&
It detects if %1
is empty, but for some content it can't fetch the content.
This can be also be useful to distinguish between an empty %1
and one with ""
.
It uses the ability of the CALL
command to fail without aborting the batch file.
@echo off
setlocal EnableDelayedExpansion
set "arg1="
call set "arg1=%%1"
if defined arg1 goto :arg_exists
set "arg1=#"
call set "arg1=%%1"
if "!arg1!" EQU "#" (
echo arg1 exists, but can't assigned to a variable
REM Try to fetch it a second time without quotes
(call set arg1=%%1)
goto :arg_exists
)
echo arg1 is missing
exit /b
:arg_exists
echo arg1 exists, perhaps the content is '!arg1!'
If you want to be 100% bullet proof to fetch the content, you could read How to receive even the strangest command line parameters?
You should use the * operator, like foo(*values)
Read the Python doc unpackaging argument lists.
Also, do read this: http://www.saltycrane.com/blog/2008/01/how-to-use-args-and-kwargs-in-python/
def foo(x,y,z):
return "%d, %d, %d" % (x,y,z)
values = [1,2,3]
# the solution.
foo(*values)
There are two basic ways:
url(../../images/image.png)
or
url(/Web/images/image.png)
I prefer the latter, as it's easier to work with and works from all locations in the site (so useful for inline image paths too).
Mind you, I wouldn't do so much deep nesting of folders. It seems unnecessary and makes life a bit difficult, as you've found.
ok just so you know there is a program out there that's called DroidDraw. It can help you draw objects and try them one on top of the other. I tried your solution but I had animation under the smaller image so that didn't work. But then I tried to place one image in a relative layout that's suppose to be under first and then on top of that I drew the other image that is suppose to overlay and everything worked great. So RelativeLayout, DroidDraw and you are good to go :) Simple, no any kind of jiggery pockery :) and here is a bit of code for ya:
The logo is going to be on top of shazam background image.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
android:id="@+id/widget30"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
xmlns:android="http://schemas.android.com/apk/res/android"
>
<ImageView
android:id="@+id/widget39"
android:layout_width="219px"
android:layout_height="225px"
android:src="@drawable/shazam_bkgd"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
>
</ImageView>
<ImageView
android:id="@+id/widget37"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/shazam_logo"
android:layout_centerVertical="true"
android:layout_centerHorizontal="true"
>
</ImageView>
</RelativeLayout>
The modern way (as of 2020) to add entries to a multimap (a map of lists) in Java is:
map.computeIfAbsent("apple", k -> new ArrayList<>()).add(2);
map.computeIfAbsent("apple", k -> new ArrayList<>()).add(3);
According to Map.computeIfAbsent
docs:
If the specified key is not already associated with a value (or is mapped to
null
), attempts to compute its value using the given mapping function and enters it into this map unlessnull
.Returns:
the current (existing or computed) value associated with the specified key, or null if the computed value is null
The most idiomatic way to iterate a map of lists is using Map.forEach
and Iterable.forEach
:
map.forEach((k, l) -> l.forEach(v -> /* use k and v here */));
Or, as shown in other answers, a traditional for
loop:
for (Map.Entry<String, List<Integer>> e : map.entrySet()) {
String k = e.getKey();
for (Integer v : e.getValue()) {
/* use k and v here */
}
}
If your image is part of the logo why not do this:
<h1><img src="img/logo.png" alt="logo" /> My website name</h1>
Use CSS to style it better.
And it is also best practice to make your logo a hyperlink that take the user back to the home page.
So you could do:
<h1 id="logo"><a href="/"><img src="img/logo.png" alt="logo" /> My website name</a></h1>
Use pd.concat
to merge a list of DataFrame into a single big DataFrame.
appended_data = []
for infile in glob.glob("*.xlsx"):
data = pandas.read_excel(infile)
# store DataFrame in list
appended_data.append(data)
# see pd.concat documentation for more info
appended_data = pd.concat(appended_data)
# write DataFrame to an excel sheet
appended_data.to_excel('appended.xlsx')
Handle added.
Added Host header.
Added linux / windows support, tested (XP,WIN7).
WARNING: ERROR : "segmentation fault" if no host,path or port as argument.
#include <stdio.h> /* printf, sprintf */
#include <stdlib.h> /* exit, atoi, malloc, free */
#include <unistd.h> /* read, write, close */
#include <string.h> /* memcpy, memset */
#ifdef __linux__
#include <sys/socket.h> /* socket, connect */
#include <netdb.h> /* struct hostent, gethostbyname */
#include <netinet/in.h> /* struct sockaddr_in, struct sockaddr */
#elif _WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#include <windows.h>
#pragma comment(lib,"ws2_32.lib") //Winsock Library
#else
#endif
void error(const char *msg) { perror(msg); exit(0); }
int main(int argc,char *argv[])
{
int i;
struct hostent *server;
struct sockaddr_in serv_addr;
int bytes, sent, received, total, message_size;
char *message, response[4096];
int portno = atoi(argv[2])>0?atoi(argv[2]):80;
char *host = strlen(argv[1])>0?argv[1]:"localhost";
char *path = strlen(argv[4])>0?argv[4]:"/";
if (argc < 5) { puts("Parameters: <host> <port> <method> <path> [<data> [<headers>]]"); exit(0); }
/* How big is the message? */
message_size=0;
if(!strcmp(argv[3],"GET"))
{
printf("Process 1\n");
message_size+=strlen("%s %s%s%s HTTP/1.0\r\nHost: %s\r\n"); /* method */
message_size+=strlen(argv[3]); /* path */
message_size+=strlen(path); /* headers */
if(argc>5)
message_size+=strlen(argv[5]); /* query string */
for(i=6;i<argc;i++) /* headers */
message_size+=strlen(argv[i])+strlen("\r\n");
message_size+=strlen("\r\n"); /* blank line */
}
else
{
printf("Process 2\n");
message_size+=strlen("%s %s HTTP/1.0\r\nHost: %s\r\n");
message_size+=strlen(argv[3]); /* method */
message_size+=strlen(path); /* path */
for(i=6;i<argc;i++) /* headers */
message_size+=strlen(argv[i])+strlen("\r\n");
if(argc>5)
message_size+=strlen("Content-Length: %d\r\n")+10; /* content length */
message_size+=strlen("\r\n"); /* blank line */
if(argc>5)
message_size+=strlen(argv[5]); /* body */
}
printf("Allocating...\n");
/* allocate space for the message */
message=malloc(message_size);
/* fill in the parameters */
if(!strcmp(argv[3],"GET"))
{
if(argc>5)
sprintf(message,"%s %s%s%s HTTP/1.0\r\nHost: %s\r\n",
strlen(argv[3])>0?argv[3]:"GET", /* method */
path, /* path */
strlen(argv[5])>0?"?":"", /* ? */
strlen(argv[5])>0?argv[5]:"",host); /* query string */
else
sprintf(message,"%s %s HTTP/1.0\r\nHost: %s\r\n",
strlen(argv[3])>0?argv[3]:"GET", /* method */
path,host); /* path */
for(i=6;i<argc;i++) /* headers */
{strcat(message,argv[i]);strcat(message,"\r\n");}
strcat(message,"\r\n"); /* blank line */
}
else
{
sprintf(message,"%s %s HTTP/1.0\r\nHost: %s\r\n",
strlen(argv[3])>0?argv[3]:"POST", /* method */
path,host); /* path */
for(i=6;i<argc;i++) /* headers */
{strcat(message,argv[i]);strcat(message,"\r\n");}
if(argc>5)
sprintf(message+strlen(message),"Content-Length: %d\r\n",(int)strlen(argv[5]));
strcat(message,"\r\n"); /* blank line */
if(argc>5)
strcat(message,argv[5]); /* body */
}
printf("Processed\n");
/* What are we going to send? */
printf("Request:\n%s\n",message);
/* lookup the ip address */
total = strlen(message);
/* create the socket */
#ifdef _WIN32
WSADATA wsa;
SOCKET s;
printf("\nInitialising Winsock...");
if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
{
printf("Failed. Error Code : %d",WSAGetLastError());
return 1;
}
printf("Initialised.\n");
//Create a socket
if((s = socket(AF_INET , SOCK_STREAM , 0 )) == INVALID_SOCKET)
{
printf("Could not create socket : %d" , WSAGetLastError());
}
printf("Socket created.\n");
server = gethostbyname(host);
serv_addr.sin_addr.s_addr = inet_addr(server->h_addr);
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(portno);
memset(&serv_addr,0,sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(portno);
memcpy(&serv_addr.sin_addr.s_addr,server->h_addr,server->h_length);
//Connect to remote server
if (connect(s , (struct sockaddr *)&serv_addr , sizeof(serv_addr)) < 0)
{
printf("connect failed with error code : %d" , WSAGetLastError());
return 1;
}
puts("Connected");
if( send(s , message , strlen(message) , 0) < 0)
{
printf("Send failed with error code : %d" , WSAGetLastError());
return 1;
}
puts("Data Send\n");
//Receive a reply from the server
if((received = recv(s , response , 2000 , 0)) == SOCKET_ERROR)
{
printf("recv failed with error code : %d" , WSAGetLastError());
}
puts("Reply received\n");
//Add a NULL terminating character to make it a proper string before printing
response[received] = '\0';
puts(response);
closesocket(s);
WSACleanup();
#endif
#ifdef __linux__
int sockfd;
server = gethostbyname(host);
if (server == NULL) error("ERROR, no such host");
sockfd = socket(AF_INET, SOCK_STREAM, 0);
if (sockfd < 0) error("ERROR opening socket");
/* fill in the structure */
memset(&serv_addr,0,sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(portno);
memcpy(&serv_addr.sin_addr.s_addr,server->h_addr,server->h_length);
/* connect the socket */
if (connect(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)) < 0)
error("ERROR connecting");
/* send the request */
sent = 0;
do {
bytes = write(sockfd,message+sent,total-sent);
if (bytes < 0)
error("ERROR writing message to socket");
if (bytes == 0)
break;
sent+=bytes;
} while (sent < total);
/* receive the response */
memset(response, 0, sizeof(response));
total = sizeof(response)-1;
received = 0;
printf("Response: \n");
do {
printf("%s", response);
memset(response, 0, sizeof(response));
bytes = recv(sockfd, response, 1024, 0);
if (bytes < 0)
printf("ERROR reading response from socket");
if (bytes == 0)
break;
received+=bytes;
} while (1);
if (received == total)
error("ERROR storing complete response from socket");
/* close the socket */
close(sockfd);
#endif
free(message);
return 0;
}
I use a function for this (if the workbook already has VBA).
Function Quote(inputText As String) As String
Quote = Chr(34) & inputText & Chr(34)
End Function
This is from Sue Mosher's book "Microsoft Outlook Programming". Then your formula would be:
="Maurice "&Quote("Rocket")&" Richard"
This is similar to what Dave DuPlantis posted.
The unwanted side effects of simple folder delete or installing over existing installation have been removed by a script written by Kyle Fuller - deintegrate and here is the proper workflow:
Install clean:
$ sudo gem install cocoapods-clean
Run deintegrate in the folder of the project:
$ pod deintegrate
Clean (this tool is no longer available):
$ pod clean
Modify your podfile (delete the lines with the pods you don't want to use anymore) and run:
$ pod install
Done.
IOError: [Errno 13] Permission denied: 'juliodantas2015.json'
tells you everything you need to know: though you successfully made your python program executable with your chmod
, python can't open that juliodantas2015.json'
file for writing. You probably don't have the rights to create new files in the folder you're currently in.
Use StringBuilder
:
var sb = new StringBuilder();
using (XmlWriter xmlWriter = XmlWriter.Create(sb))
{
...
}
return sb.ToString();
You can try this using hotmail like this:-
MailMessage o = new MailMessage("From", "To","Subject", "Body");
NetworkCredential netCred= new NetworkCredential("Sender Email","Sender Password");
SmtpClient smtpobj= new SmtpClient("smtp.live.com", 587);
smtpobj.EnableSsl = true;
smtpobj.Credentials = netCred;
smtpobj.Send(o);
Found another way:
import json
print json.dumps(d, sort_keys = True)
upd:
1. this also sorts nested objects (thanks @DanielF).
2. python dictionaries are unordered therefore this is sutable for print or assign to str only.
Might I suggest WinSnap http://www.ntwind.com/software/winsnap/download-free-version.html. It provides an autosave option and capture the alt+printscreen and other key combinations to capture screen, windows, dialog, etc.
I guess this is what you want:
l = range(100)
index = 0
for i in l:
print i,
try:
print l.pop(index+1),
print l.pop(index+1)
except:
pass
index += 1
It is quite handy to code when the number of item to be popped is a run time decision. But it runs with very a bad efficiency and the code is hard to maintain.
You can use the ExceptionUtils.getStackTrace(Throwable t);
from Apache Commons 3 class org.apache.commons.lang3.exception.ExceptionUtils
.
http://commons.apache.org/proper/commons-lang/
ExceptionUtils.getStackTrace(Throwable t)
Code example:
try {
// your code here
} catch(Exception e) {
String s = ExceptionUtils.getStackTrace(e);
}
Put this code wherever you want to insert a new line:
bufferedWriter.newLine();
I realize this is a very old question, but hopefully this will help someone else out as I came upon this post looking for the same thing. I had a similar issue, just that my metadata was a Guid and int. The solution is the same though. You can just make the needed metadata part of the URL.
POST accepting method in your "Controller" class:
public Task<HttpResponseMessage> PostFile(string name, float latitude, float longitude)
{
//See http://stackoverflow.com/a/10327789/431906 for how to accept a file
return null;
}
Then in whatever you're registering routes, WebApiConfig.Register(HttpConfiguration config) for me in this case.
config.Routes.MapHttpRoute(
name: "FooController",
routeTemplate: "api/{controller}/{name}/{latitude}/{longitude}",
defaults: new { }
);
You need to make sure that the first numeral to the right of the decimal point is always displayed. In custom format strings, #
means display the number if it exists, and 0
means always display something, with 0 as the placeholder.
So in your case you will need something like:
=Format(Fields!CUL1.Value, "#,##0.##")
This saying: display 2 DP if they exist, for the non-zero part always display the lowest part, and use , as the grouping separator.
This is how it looks on your data (I've added a large value as well for reference):
If you're not interested in separating thousands, millions, etc, just use #0.##
as Paul-Jan suggested.
The standard docs for Custom Numeric Format Strings are your best reference here.
Use a smarty template for your stuff then just set the POST array as a smarty array and open the template. In the template just echo out the array so if it passes:
if(correct){
header("Location: passed.php");
} else {
$smarty->assign("variables", $_POST);
$smarty->display("register_error.php");
exit;
}
I have not tried this yet but I am going to try it as a solution and will let you know what I find. But of course this method assumes that you are using smarty.
If not you can just recreate your form there on the error page and echo info into the form or you could send back non important data in a get from and get it
ex.
register.php?name=mr_jones&address==......
echo $_GET[name];
item=sp.getItemAtPosition(i).toString();
list.add(item);
adapter.notifyDataSetChanged () ;
Ctrl+C sends a SIGINT
signal.
kill -INT <pid>
sends a SIGINT
signal too:
# Terminates the program (like Ctrl+C)
kill -INT 888
# Force kill
kill -9 888
Assuming 888
is your process ID.
Note that kill 888
sends a SIGTERM
signal, which is slightly different, but will also ask for the program to stop. So if you know what you are doing (no handler bound to SIGINT
in the program), a simple kill
is enough.
To get the PID of the last command launched in your script, use $!
:
# Launch script in background
./my_script.sh &
# Get its PID
PID=$!
# Wait for 2 seconds
sleep 2
# Kill it
kill $PID
You could also have the dependencies declared in the bootstrap-command like:
bootstrap(MyAppComponent,[NameService]);
At least that's what worked for me in alpha40.
this is the link: http://www.syntaxsuccess.com/viewarticle/dependency-injection-in-angular-2.0
Remove that <p>
tag and add the button inside a <div class="form-actions">
like this:
<div class="form-actions">
<button type="submit" class="btn">Confirm</button>
</div>
an then augment the CSS class with:
.form-actions {
margin: 0;
background-color: transparent;
text-align: center;
}
Here's a JS Bin demo: http://jsbin.com/ijozof/2
Look for form-actions
at the Bootstrap
doc here:
I had this error message when trying "hello world" like things with Qt. The problems went away by correctly running the qt moc (meta object compiler) and compiling+including these moc-generated files correctly.
You get the cursor position by calling GetCursorPos
.
POINT p;
if (GetCursorPos(&p))
{
//cursor position now in p.x and p.y
}
This returns the cursor position relative to screen coordinates. Call ScreenToClient
to map to window coordinates.
if (ScreenToClient(hwnd, &p))
{
//p.x and p.y are now relative to hwnd's client area
}
You hide and show the cursor with ShowCursor
.
ShowCursor(FALSE);//hides the cursor
ShowCursor(TRUE);//shows it again
You must ensure that every call to hide the cursor is matched by one that shows it again.
My environment was prior tooling such as Jenkins and was running with batch files (I know, I'm old). So those batch files (and their sub-batch files) are using environment variables. This was my piece of groovy script which injects environment variables. The names and parameters used are dummy ones.
// The process/batch which uses environment variables
def buildLabel = "SomeVersionNr"
def script = "startBuild.bat"
def processBuilder = new ProcessBuilder(script, buildLabel)
//Inject our environment variables
Map<String, String> env = processBuilder.environment()
env.put("ProjectRoot", "someLocation")
env.put("SomeVar", "Some")
Process p = processBuilder.start()
p.waitFor()
Of course if you set Jenkins up from scratch you would probably do it differently and share the variables in another way, or pass parameters around but this might come handy.
As already mentioned in the Poi's JavaDocs (https://poi.apache.org/apidocs/org/apache/poi/ss/usermodel/Cell.html#setCellType%28int%29) don't use:
cell.setCellType(Cell.CELL_TYPE_STRING);
but use:
DataFormatter df = new DataFormatter();
String value = df.formatCellValue(cell);
More examples on http://massapi.com/class/da/DataFormatter.html
This what I did to show the confirmation message just when I have unsaved data
window.onbeforeunload = function () {
if (isDirty) {
return "There are unsaved data.";
}
return undefined;
}
returning "undefined" will disable the confirmation
Note: returning "null" will not work with IE
Also you can use "undefined" to disable the confirmation
window.onbeforeunload = undefined;
I found that the WebClient kept removing my User-Agent header after one request and I was tired of setting it each time. I used a hack to set the User-Agent permanently by making my own custom WebClient and overriding the GetWebRequest method. Hope this helps.
public class CustomWebClient : WebClient
{
public CustomWebClient(){}
protected override WebRequest GetWebRequest(Uri address)
{
var request = base.GetWebRequest(address) as HttpWebRequest;
request.UserAgent="Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/6.0;)";
//... your other custom code...
return request;
}
}
To get screen resolution in JS use screen
object
screen.height;
screen.width;
Based on that values you can calculate your margin to whatever suits you.
When I want to access the application file version (what is set in Assembly Information -> File version), say to set a label's text to it on form load to display the version, I have just used
versionlabel.Text = "Version " + Application.ProductVersion;
This approach requires a reference to System.Windows.Forms
.
Shortest Yet !!!
=f.hidden_field :title, :value => "some value"
Shorter, DRYer and perhaps more obvious.
Of course with ruby 1.9 and the new hash format we can go 3 characters shorter with...
=f.hidden_field :title, value: "some value"
Another corner case that this could happen: if you read/write a JAR file through a URL
and later try to delete the same file within the same JVM session.
File f = new File("/tmp/foo.jar");
URL j = f.toURI().toURL();
URL u = new URL("jar:" + j + "!/META-INF/MANIFEST.MF");
URLConnection c = u.openConnection();
// open a Jar entry in auto-closing manner
try (InputStream i = c.getInputStream()) {
// just read some stuff; for demonstration purposes only
byte[] first16 = new byte[16];
i.read(first16);
System.out.println(new String(first16));
}
// ...
// i is now closed, so we should be good to delete the jar; but...
System.out.println(f.delete()); // says false!
Reason is that the internal JAR file handling logic of Java, tends to cache JarFile
entries:
// inner class of `JarURLConnection` that wraps the actual stream returned by `getInputStream()`
class JarURLInputStream extends FilterInputStream {
JarURLInputStream(InputStream var2) {
super(var2);
}
public void close() throws IOException {
try {
super.close();
} finally {
// if `getUseCaches()` is set, `jarFile` won't get closed!
if (!JarURLConnection.this.getUseCaches()) {
JarURLConnection.this.jarFile.close();
}
}
}
}
And each JarFile
(rather, the underlying ZipFile
structure) would hold a handle to the file, right from the time of construction up until close()
is invoked:
public ZipFile(File file, int mode, Charset charset) throws IOException {
// ...
jzfile = open(name, mode, file.lastModified(), usemmap);
// ...
}
// ...
private static native long open(String name, int mode, long lastModified,
boolean usemmap) throws IOException;
There's a good explanation on this NetBeans issue.
Apparently there are two ways to "fix" this:
You can disable the JAR file caching - for the current URLConnection
, or for all future URLConnection
s (globally) in the current JVM session:
URL u = new URL("jar:" + j + "!/META-INF/MANIFEST.MF");
URLConnection c = u.openConnection();
// for only c
c.setUseCaches(false);
// globally; for some reason this method is not static,
// so we still need to access it through a URLConnection instance :(
c.setDefaultUseCaches(false);
[HACK WARNING!] You can manually purge the JarFile
from the cache when you are done with it. The cache manager sun.net.www.protocol.jar.JarFileFactory
is package-private, but some reflection magic can get the job done for you:
class JarBridge {
static void closeJar(URL url) throws Exception {
// JarFileFactory jarFactory = JarFileFactory.getInstance();
Class<?> jarFactoryClazz = Class.forName("sun.net.www.protocol.jar.JarFileFactory");
Method getInstance = jarFactoryClazz.getMethod("getInstance");
getInstance.setAccessible(true);
Object jarFactory = getInstance.invoke(jarFactoryClazz);
// JarFile jarFile = jarFactory.get(url);
Method get = jarFactoryClazz.getMethod("get", URL.class);
get.setAccessible(true);
Object jarFile = get.invoke(jarFactory, url);
// jarFactory.close(jarFile);
Method close = jarFactoryClazz.getMethod("close", JarFile.class);
close.setAccessible(true);
//noinspection JavaReflectionInvocation
close.invoke(jarFactory, jarFile);
// jarFile.close();
((JarFile) jarFile).close();
}
}
// and in your code:
// i is now closed, so we should be good to delete the jar
JarBridge.closeJar(j);
System.out.println(f.delete()); // says true, phew.
Please note: All this is based on Java 8 codebase (1.8.0_144
); they may not work with other / later versions.
top -b -n 1 | mail -s "any subject" [email protected]
It was already pointed in this comment and in this answer, but I'll try to give a more direct answer to the question:
from IPython.display import display
import numpy as np
import pandas as pd
n = 100
foo = pd.DataFrame(index=range(n))
foo['floats'] = np.random.randn(n)
with pd.option_context("display.max_rows", foo.shape[0]):
display(foo)
pandas.option_context is available since pandas 0.13.1 (pandas 0.13.1 release notes). According to this,
[it] allow[s] you to execute a codeblock with a set of options that revert to prior settings when you exit the with block.
You might also want to define the imeOptions within the EditText. This way, the keyboard will go away once you press on Done:
<EditText
android:id="@+id/editText1"
android:inputType="text"
android:imeOptions="actionDone"/>
Use DATEADD in your WHERE clause:
...
WHERE date < DATEADD(day, -30, GETDATE())
You can also use abbreviation d
or dd
instead of day
.
For a dynamic approach, if your labels are always in front of your text areas:
$(object).prev("label").text(charsleft);
In my case I was trying to connect to a remote mysql server on cent OS. After going through a lot of solutions (granting all privileges, removing ip bindings,enabling networking) problem was still not getting solved.
As it turned out, while looking into various solutions,I came across iptables, which made me realize mysql port 3306 was not accepting connections.
Here is a small note on how I checked and resolved this issue.
telnet (mysql server ip) [portNo]
-Adding ip table rule to allow connections on the port:
iptables -A INPUT -i eth0 -p tcp -m tcp --dport 3306 -j ACCEPT
-Would not recommend this for production environment, but if your iptables are not configured properly, adding the rules might not still solve the issue. In that case following should be done:
service iptables stop
Hope this helps.
Odd errors like "inappropriate ioctl for device" are usually a result of checking $! at some point other than just after a system call failed. If you'd show your code, I bet someone would rapidly point out your error.
Don't just hastily pick the first import strategy that works for you or else you'll have to rewrite the codebase later on when you find it doesn't meet your needs.
I'll start out explaining the easiest example #1, then I'll move toward the most professional and robust example #7
Example 1, Import a python module with python interpreter:
Put this in /home/el/foo/fox.py:
def what_does_the_fox_say():
print("vixens cry")
Get into the python interpreter:
el@apollo:/home/el/foo$ python
Python 2.7.3 (default, Sep 26 2013, 20:03:06)
>>> import fox
>>> fox.what_does_the_fox_say()
vixens cry
>>>
You imported fox through the python interpreter, invoked the python function what_does_the_fox_say()
from within fox.py.
Example 2, Use execfile
or (exec
in Python 3) in a script to execute the other python file in place:
Put this in /home/el/foo2/mylib.py:
def moobar():
print("hi")
Put this in /home/el/foo2/main.py:
execfile("/home/el/foo2/mylib.py")
moobar()
run the file:
el@apollo:/home/el/foo$ python main.py
hi
The function moobar was imported from mylib.py and made available in main.py
Example 3, Use from ... import ... functionality:
Put this in /home/el/foo3/chekov.py:
def question():
print "where are the nuclear wessels?"
Put this in /home/el/foo3/main.py:
from chekov import question
question()
Run it like this:
el@apollo:/home/el/foo3$ python main.py
where are the nuclear wessels?
If you defined other functions in chekov.py, they would not be available unless you import *
Example 4, Import riaa.py if it's in a different file location from where it is imported
Put this in /home/el/foo4/stuff/riaa.py:
def watchout():
print "computers are transforming into a noose and a yoke for humans"
Put this in /home/el/foo4/main.py:
import sys
import os
sys.path.append(os.path.abspath("/home/el/foo4/stuff"))
from riaa import *
watchout()
Run it:
el@apollo:/home/el/foo4$ python main.py
computers are transforming into a noose and a yoke for humans
That imports everything in the foreign file from a different directory.
Example 5, use os.system("python yourfile.py")
import os
os.system("python yourfile.py")
Example 6, import your file via piggybacking the python startuphook:
Update: This example used to work for both python2 and 3, but now only works for python2. python3 got rid of this user startuphook feature set because it was abused by low-skill python library writers, using it to impolitely inject their code into the global namespace, before all user-defined programs. If you want this to work for python3, you'll have to get more creative. If I tell you how to do it, python developers will disable that feature set as well, so you're on your own.
See: https://docs.python.org/2/library/user.html
Put this code into your home directory in ~/.pythonrc.py
class secretclass:
def secretmessage(cls, myarg):
return myarg + " is if.. up in the sky, the sky"
secretmessage = classmethod( secretmessage )
def skycake(cls):
return "cookie and sky pie people can't go up and "
skycake = classmethod( skycake )
Put this code into your main.py (can be anywhere):
import user
msg = "The only way skycake tates good"
msg = user.secretclass.secretmessage(msg)
msg += user.secretclass.skycake()
print(msg + " have the sky pie! SKYCAKE!")
Run it, you should get this:
$ python main.py
The only way skycake tates good is if.. up in the sky,
the skycookie and sky pie people can't go up and have the sky pie!
SKYCAKE!
If you get an error here: ModuleNotFoundError: No module named 'user'
then it means you're using python3, startuphooks are disabled there by default.
Credit for this jist goes to: https://github.com/docwhat/homedir-examples/blob/master/python-commandline/.pythonrc.py Send along your up-boats.
Example 7, Most Robust: Import files in python with the bare import command:
/home/el/foo5/
/home/el/foo5/herp
Make an empty file named __init__.py
under herp:
el@apollo:/home/el/foo5/herp$ touch __init__.py
el@apollo:/home/el/foo5/herp$ ls
__init__.py
Make a new directory /home/el/foo5/herp/derp
Under derp, make another __init__.py
file:
el@apollo:/home/el/foo5/herp/derp$ touch __init__.py
el@apollo:/home/el/foo5/herp/derp$ ls
__init__.py
Under /home/el/foo5/herp/derp make a new file called yolo.py
Put this in there:
def skycake():
print "SkyCake evolves to stay just beyond the cognitive reach of " +
"the bulk of men. SKYCAKE!!"
The moment of truth, Make the new file /home/el/foo5/main.py
, put this in there;
from herp.derp.yolo import skycake
skycake()
Run it:
el@apollo:/home/el/foo5$ python main.py
SkyCake evolves to stay just beyond the cognitive reach of the bulk
of men. SKYCAKE!!
The empty __init__.py
file communicates to the python interpreter that the developer intends this directory to be an importable package.
If you want to see my post on how to include ALL .py files under a directory see here: https://stackoverflow.com/a/20753073/445131
You might want to take a look at the excellent HTTP Python library called Requests. It makes every task involving HTTP a bit easier than urllib2. From Cookies section of quickstart guide:
To send your own cookies to the server, you can use the cookies parameter:
>>> cookies = dict(cookies_are='working')
>>> r = requests.get('http://httpbin.org/cookies', cookies=cookies)
>>> r.text
'{"cookies": {"cookies_are": "working"}}'
Use the set method to replace the old value with a new one.
list.set( 2, "New" );
You can do multiple condition logical tests within the while() check using the same rules as within any logical check.
while ( obj != null ) {
// do stuff
}
works, as does
while ( value > 5 && value < 10 ) {
// do stuff
}
are valid. The conditionals are checked on each iteration through the loop. As soon as one doesn't match, the while() loop is exited. You can also use break;
while ( value > 5 ) {
if ( value > 10 ) { break; }
...
}
To avoid including a large framework, I think a simple homemade class can do the trick.
Example of class to handle named parameters:
public class NamedParamStatement {
public NamedParamStatement(Connection conn, String sql) throws SQLException {
int pos;
while((pos = sql.indexOf(":")) != -1) {
int end = sql.substring(pos).indexOf(" ");
if (end == -1)
end = sql.length();
else
end += pos;
fields.add(sql.substring(pos+1,end));
sql = sql.substring(0, pos) + "?" + sql.substring(end);
}
prepStmt = conn.prepareStatement(sql);
}
public PreparedStatement getPreparedStatement() {
return prepStmt;
}
public ResultSet executeQuery() throws SQLException {
return prepStmt.executeQuery();
}
public void close() throws SQLException {
prepStmt.close();
}
public void setInt(String name, int value) throws SQLException {
prepStmt.setInt(getIndex(name), value);
}
private int getIndex(String name) {
return fields.indexOf(name)+1;
}
private PreparedStatement prepStmt;
private List<String> fields = new ArrayList<String>();
}
Example of calling the class:
String sql;
sql = "SELECT id, Name, Age, TS FROM TestTable WHERE Age < :age OR id = :id";
NamedParamStatement stmt = new NamedParamStatement(conn, sql);
stmt.setInt("age", 35);
stmt.setInt("id", 2);
ResultSet rs = stmt.executeQuery();
Please note that the above simple example does not handle using named parameter twice. Nor does it handle using the : sign inside quotes.
you can measure how long your program works. The following functions help measure the CPU time since the start of the program:
my reference: Algorithms toolbox week 1 course part of data structures and algorithms specialization by University of California San Diego & National Research University Higher School of Economics
so you can add this line of code after your algorithm
cout << (double)clock() / CLOCKS_PER_SEC ;
Expected Output: the output representing the number of clock ticks per second
Building on the answer from @fzzle - to achieve a circle from a rectangle without defining a fixed height or width, the following will work. The padding-top:100% keeps a 1:1 ratio for the circle-cropper div. Set an inline background image, center it, and use background-size:cover to hide any excess.
CSS
.circle-cropper {
background-repeat: no-repeat;
background-size: cover;
background-position: 50%;
border-radius: 50%;
width: 100%;
padding-top: 100%;
}
HTML
<div class="circle-cropper" role="img" style="background-image:url(myrectangle.jpg);"></div>
That's probably a requireJS module definition
Check here for more details
RequireJS is a JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node. Using a modular script loader like RequireJS will improve the speed and quality of your code.
Thought this is old question, I think I have better solution
To use pip for a python 2.x environment, use this command -
py -2 -m pip install -r requirements.txt
To use pip for python 3.x environment, use this command -
py -3 -m pip install -r requirements.txt
You can try out wsdl validator http://docs.wso2.org/wiki/display/ESB451/WSDL+Validator
I used read_csv
from the readr
package
In my experience, the parameter row.names=NULL
in the read.csv
function will lead to a wrong reading of the
file if a column name is missing, i.e. every column will be shifted.
read_csv
solves this.
You can check the amef protocol, an example of C++ encoding in amef would be like,
//Create a new AMEF object
AMEFObject *object = new AMEFObject();
//Add a child string object
object->addPacket("This is the Automated Message Exchange Format Object property!!","adasd");
//Add a child integer object
object->addPacket(21213);
//Add a child boolean object
object->addPacket(true);
AMEFObject *object2 = new AMEFObject();
string j = "This is the property of a nested Automated Message Exchange Format Object";
object2->addPacket(j);
object2->addPacket(134123);
object2->addPacket(false);
//Add a child character object
object2->addPacket('d');
//Add a child AMEF Object
object->addPacket(object2);
//Encode the AMEF obejct
string str = new AMEFEncoder()->encode(object,false);
Decoding in java would be like,
string arr = amef encoded byte array value;
AMEFDecoder decoder = new AMEFDecoder()
AMEFObject object1 = AMEFDecoder.decode(arr,true);
The Protocol implementation has codecs for both C++ and Java, the interesting part is it can retain object class representation in the form of name value pairs, I required a similar protocol in my last project, when i incidentally stumbled upon this protocol, i had actually modified the base library according to my requirements. Hope this helps you.
This is actually the conventional use of the break
statement. If the break
statement wasn't nested in an if
block the for
loop could only ever execute one time.
MSDN lists this as their example for the break
statement.
According to Angular2 documentation you should use:
@RouteConfig([
{path: '/login/:token', name: 'Login', component: LoginComponent},
])
@Component({ template: 'login: {{token}}' })
class LoginComponent{
token: string;
constructor(params: RouteParams) {
this.token = params.get('token');
}
}
i have updated both fiddles. i hope it will make your work done.
html, body
{
height: 100%;
width: 100%;
}
body
{
margin: 0;
}
.outer
{
width: 100%;
display: flex;
align-items: center;
justify-content: center;
}
.inner
{
width: 80%;
margin: 0 auto;
}
html, body
{
height: 100%;
width: 100%;
}
body
{
margin: 0;
display:flex;
}
.outer
{
min-width: 100%;
display: flex;
align-items: center;
justify-content: center;
}
.inner
{
width: 80%;
margin-top:40px;
margin: 0 auto;
}
From the Haskell Wiki:
Haskell has a diverse range of use commercially, from aerospace and defense, to finance, to web startups, hardware design firms and lawnmower manufacturers. This page collects resources on the industrial use of Haskell.
According to Wikipedia, the Haskell language was created out of the need to consolidate existing functional languages into a common one which could be used for future research in functional-language design.
It is apparent based on the information available that it has outgrown it's original purpose and is used for much more than research. It is now considered a general purpose functional programming language.
If you're still asking yourself, "Why should I use it?", then read the Why use it? section of the Haskell Wiki Introduction.
From v0.11+, ... use df.iloc
.
In [7]: df.iloc[:,0]
Out[7]:
0 1
1 2
2 3
3 4
Name: x, dtype: int64
Possible solution to resolve your problem .
public static string FirstToUpper(this string lowerWord)
{
if (string.IsNullOrWhiteSpace(lowerWord) || string.IsNullOrEmpty(lowerWord))
return lowerWord;
return new StringBuilder(lowerWord.Substring(0, 1).ToUpper())
.Append(lowerWord.Substring(1))
.ToString();
}
You can force asynchronous JavaScript in NodeJS to be synchronous with sync-rpc.
It will definitely freeze your UI though, so I'm still a naysayer when it comes to whether what it's possible to take the shortcut you need to take. It's not possible to suspend the One And Only Thread in JavaScript, even if NodeJS lets you block it sometimes. No callbacks, events, anything asynchronous at all will be able to process until your promise resolves. So unless you the reader have an unavoidable situation like the OP (or, in my case, are writing a glorified shell script with no callbacks, events, etc.), DO NOT DO THIS!
But here's how you can do this:
./calling-file.js
var createClient = require('sync-rpc');
var mySynchronousCall = createClient(require.resolve('./my-asynchronous-call'), 'init data');
var param1 = 'test data'
var data = mySynchronousCall(param1);
console.log(data); // prints: received "test data" after "init data"
./my-asynchronous-call.js
function init(initData) {
return function(param1) {
// Return a promise here and the resulting rpc client will be synchronous
return Promise.resolve('received "' + param1 + '" after "' + initData + '"');
};
}
module.exports = init;
LIMITATIONS:
These are both a consequence of how sync-rpc
is implemented, which is by abusing require('child_process').spawnSync
:
JSON.stringify
, so functions and non-enumerable properties like prototype chains will be lost.A simple pure-Python implementation would be:
import math
import re
from collections import Counter
WORD = re.compile(r"\w+")
def get_cosine(vec1, vec2):
intersection = set(vec1.keys()) & set(vec2.keys())
numerator = sum([vec1[x] * vec2[x] for x in intersection])
sum1 = sum([vec1[x] ** 2 for x in list(vec1.keys())])
sum2 = sum([vec2[x] ** 2 for x in list(vec2.keys())])
denominator = math.sqrt(sum1) * math.sqrt(sum2)
if not denominator:
return 0.0
else:
return float(numerator) / denominator
def text_to_vector(text):
words = WORD.findall(text)
return Counter(words)
text1 = "This is a foo bar sentence ."
text2 = "This sentence is similar to a foo bar sentence ."
vector1 = text_to_vector(text1)
vector2 = text_to_vector(text2)
cosine = get_cosine(vector1, vector2)
print("Cosine:", cosine)
Prints:
Cosine: 0.861640436855
The cosine formula used here is described here.
This does not include weighting of the words by tf-idf, but in order to use tf-idf, you need to have a reasonably large corpus from which to estimate tfidf weights.
You can also develop it further, by using a more sophisticated way to extract words from a piece of text, stem or lemmatise it, etc.
There is a javascript library DNS-JS.com that does just this.
DNS.Query("dns-js.com",
DNS.QueryType.A,
function(data) {
console.log(data);
});
Create a C# class that maps to your Json and use Newsoft JsonConvert
to Deserialise it.
For example:
public Class MyResponse
{
public Meta Meta { get; set; }
public Response Response { get; set; }
}
This error also occurs if you did not upload the various rsl/swc/flash-library that your swf file might expect. You may upload this RSL or missing swc or tweak your compiler options cf. http://help.adobe.com/en_US/flashbuilder/using/WSe4e4b720da9dedb5-1a92eab212e75b9d8b2-7ffe.html#WSe4e4b720da9dedb5-1a92eab212e75b9d8b2-7ff5
It is probably not a correct way for clean, but I made that to delete unnecessary files, and take less size of a project. It continuously finds and deletes all build and Gradle folders made file clean.bat copy that into the folder where your project is
set mypath=%cd%
for /d /r %mypath% %%a in (build\) do if exist "%%a" rmdir /s /q "%%a"
for /d /r %mypath% %%a in (.gradle\) do if exist "%%a" rmdir /s /q "%%a"
Another possible cause of this error is a mismatched workgroup file. That is, if you try to use a secured (or partially-secured) MDB with a workgroup file other than the one used to secure it, you can trigger the error (I've seen it myself, years ago with Access 2000).
The following line will start reading a number (%d
) followed by anything different from tabs or newlines (%[^\t\n]
).
sscanf("19 cool kid", "%d %[^\t\n]", &age, buffer);
Create a Map or a Set, and using "on connection" event set to it each connected socket, in reverse "once disconnect" event delete that socket from the Map we created earlier
import * as Server from 'socket.io';
const io = Server();
io.listen(3000);
const connections = new Set();
io.on('connection', function (s) {
connections.add(s);
s.once('disconnect', function () {
connections.delete(s);
});
});
Since Spring Boot provides various configuration externalization mechanism (through various PropertySource
implementations and/or processors wired into Environment
object in order), you can set any property outside of your jar archive through following methods:
Pass property through command line argument as application argument
java -jar <path/to/my/jar> --server.port=7788
From property in SPRING_APPLICATION_JSON
(Spring Boot 1.3.0+)
Define environment variable in U*IX shell:
SPRING_APPLICATION_JSON='{"server.port":7788}' java -jar <path/to/my/jar>
By using Java system property:
java -Dspring.application.json='{"server.port":7788}' -jar <path/to/my/jar>
Pass through command line argument:
java -jar <path/to/my/jar> --spring.application.json='{"server.port":7788}'
Define JVM system property
java -Dserver.port=7788 -jar <path/to/my/jar>
Define OS environment variable
U*IX Shell
SERVER_PORT=7788 java -jar <path/to/my/jar>
Windows
SET SERVER_PORT=7788
java -jar <path/to/my/jar>
Place property in ./config/application.properties
configuration file
server.port=7788
and run:
java -jar <path/to/my/jar>
Place property in ./config/application.yaml
server:
port: 7788
and run:
java -jar <path/to/my/jar>
Place property in ./application.properties
server.port=7788
and run:
java -jar <path/to/my/jar>
Place property in ./application.yaml
server:
port: 7788
and run:
java -jar <path/to/my/jar>
You can combine above methods all together, and the former configuration in the list take precedence over the latter one.
For example:
SERVER_PORT=2266 java -Dserver.port=5566 -jar <path/to/my/jar> --server.port=7788
The server will start and listen on port 7788.
This is very useful providing default properties in PropertySources with lower precedence (and usually packaged in the archive or coded in the source), and then override it in the runtime environment. And it is the design philosophy of Spring Boot:
Be opinionated out of the box, but get out of the way quickly as requirements start to diverge from the defaults.
SERVER_NAME
to server.name
conversion was done by Relaxed Binding.
First, do not use DataOutputStream
unless it’s really necessary. Second:
Socket socket = new Socket("host", port);
OutputStream socketOutputStream = socket.getOutputStream();
socketOutputStream.write(message);
Of course this lacks any error checking but this should get you going. The JDK API Javadoc is your friend and can help you a lot.
Here is the max value and the indexes it appears at:
>>> from collections import defaultdict
>>> d = defaultdict(list)
>>> a = [32, 37, 28, 30, 37, 25, 27, 24, 35, 55, 23, 31, 55, 21, 40, 18, 50, 35, 41, 49, 37, 19, 40, 41, 31]
>>> for i, x in enumerate(a):
... d[x].append(i)
...
>>> k = max(d.keys())
>>> print k, d[k]
55 [9, 12]
Later: for the satisfaction of @SilentGhost
>>> from itertools import takewhile
>>> import heapq
>>>
>>> def popper(heap):
... while heap:
... yield heapq.heappop(heap)
...
>>> a = [32, 37, 28, 30, 37, 25, 27, 24, 35, 55, 23, 31, 55, 21, 40, 18, 50, 35, 41, 49, 37, 19, 40, 41, 31]
>>> h = [(-x, i) for i, x in enumerate(a)]
>>> heapq.heapify(h)
>>>
>>> largest = heapq.heappop(h)
>>> indexes = [largest[1]] + [x[1] for x in takewhile(lambda large: large[0] == largest[0], popper(h))]
>>> print -largest[0], indexes
55 [9, 12]
It sounds like this
is referring to something else than you think. In what context are you using it?
The this
keyword is usually only used within a callback function of an event-handler, when you loop over a set of elements, or similar. In that context it refers to a particular DOM-element, and can be used the way you do.
If you only want to access that particular button (outside any callback or loop) and don't have any other elements that use the btn-info
class, you could do something like:
parseInt($(".btn-info").data('votevalue'), 10);
You could also assign the element an ID, and use that to select on, which is probably a safer way, if you want to be sure that only one element match your selector.
In Router at end add html5Mode(true);
app.config(function($routeProvider,$locationProvider) {
$routeProvider.when('/home', {
templateUrl:'/html/home.html'
});
$locationProvider.html5Mode(true);
})
In html head add base tag
<html>
<head>
<meta charset="utf-8">
<base href="/">
</head>
thanks To @plus- for detailing the above answer
You are checking it the array index contains a string "undefined"
, you should either use the typeof
operator:
typeof predQuery[preId] == 'undefined'
Or use the undefined
global property:
predQuery[preId] === undefined
The first way is safer, because the undefined
global property is writable, and it can be changed to any other value.
You don't want to stretch the span in height?
You have the possiblity to affect one or more flex-items to don't stretch the full height of the container.
To affect all flex-items of the container, choose this:
You have to set align-items: flex-start;
to div
and all flex-items of this container get the height of their content.
div {_x000D_
align-items: flex-start;_x000D_
background: tan;_x000D_
display: flex;_x000D_
height: 200px;_x000D_
}_x000D_
span {_x000D_
background: red;_x000D_
}
_x000D_
<div>_x000D_
<span>This is some text.</span>_x000D_
</div>
_x000D_
To affect only a single flex-item, choose this:
If you want to unstretch a single flex-item on the container, you have to set align-self: flex-start;
to this flex-item. All other flex-items of the container aren't affected.
div {_x000D_
display: flex;_x000D_
height: 200px;_x000D_
background: tan;_x000D_
}_x000D_
span.only {_x000D_
background: red;_x000D_
align-self:flex-start;_x000D_
}_x000D_
span {_x000D_
background:green;_x000D_
}
_x000D_
<div>_x000D_
<span class="only">This is some text.</span>_x000D_
<span>This is more text.</span>_x000D_
</div>
_x000D_
Why is this happening to the span
?
The default value of the property align-items
is stretch
. This is the reason why the span
fill the height of the div
.
Difference between baseline
and flex-start
?
If you have some text on the flex-items, with different font-sizes, you can use the baseline of the first line to place the flex-item vertically. A flex-item with a smaller font-size have some space between the container and itself at top. With flex-start
the flex-item will be set to the top of the container (without space).
div {_x000D_
align-items: baseline;_x000D_
background: tan;_x000D_
display: flex;_x000D_
height: 200px;_x000D_
}_x000D_
span {_x000D_
background: red;_x000D_
}_x000D_
span.fontsize {_x000D_
font-size:2em;_x000D_
}
_x000D_
<div>_x000D_
<span class="fontsize">This is some text.</span>_x000D_
<span>This is more text.</span>_x000D_
</div>
_x000D_
You can find more information about the difference between
baseline
andflex-start
here:
What's the difference between flex-start and baseline?
HashMap<Integer, String> map = new HashMap<Integer, String>();
map.put (1, "Mark");
map.put (2, "Tarryn");
List<String> list = new ArrayList<String>(map.values());
for (String s : list) {
System.out.println(s);
}
---Lalmuni Demos---
create table Users
(
userid int,date_of_birth date
)
insert into Users values(4,'9/10/1991')
select DATEDIFF(year,date_of_birth, getdate()) - (CASE WHEN (DATEADD(year, DATEDIFF(year,date_of_birth, getdate()),date_of_birth)) > getdate() THEN 1 ELSE 0 END) as Years,
MONTH(getdate() - (DATEADD(year, DATEDIFF(year, date_of_birth, getdate()), date_of_birth))) - 1 as Months,
DAY(getdate() - (DATEADD(year, DATEDIFF(year,date_of_birth, getdate()), date_of_birth))) - 1 as Days,
from users
You may want to try the following:
SELECT l.position,
l.username,
l.score,
@curRow := @curRow + 1 AS row_number
FROM league_girl l
JOIN (SELECT @curRow := 0) r;
The JOIN (SELECT @curRow := 0)
part allows the variable initialization without requiring a separate SET
command.
Test case:
CREATE TABLE league_girl (position int, username varchar(10), score int);
INSERT INTO league_girl VALUES (1, 'a', 10);
INSERT INTO league_girl VALUES (2, 'b', 25);
INSERT INTO league_girl VALUES (3, 'c', 75);
INSERT INTO league_girl VALUES (4, 'd', 25);
INSERT INTO league_girl VALUES (5, 'e', 55);
INSERT INTO league_girl VALUES (6, 'f', 80);
INSERT INTO league_girl VALUES (7, 'g', 15);
Test query:
SELECT l.position,
l.username,
l.score,
@curRow := @curRow + 1 AS row_number
FROM league_girl l
JOIN (SELECT @curRow := 0) r
WHERE l.score > 50;
Result:
+----------+----------+-------+------------+
| position | username | score | row_number |
+----------+----------+-------+------------+
| 3 | c | 75 | 1 |
| 5 | e | 55 | 2 |
| 6 | f | 80 | 3 |
+----------+----------+-------+------------+
3 rows in set (0.00 sec)
<ImageButton android:src="@drawable/image_btn_src" ... />
image_btn_src.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true" android:drawable="@drawable/icon_pressed"/>
<item android:state_pressed="false" android:drawable="@drawable/icon_unpressed"/>
</selector>
You can use computeIfPresent
method and supply it a mapping function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("world", 4);
words.computeIfPresent("hello", (k, v) -> v + 1);
System.out.println(words.get("hello"));
Alternatevely, you could use merge
method, where 1 is the default value and function increments existing value by 1:
words.merge("hello", 1, Integer::sum);
In addition, there is a bunch of other useful methods, such as putIfAbsent
, getOrDefault
, forEach
, etc.
You can add new column with the query
ALTER TABLE TableName ADD COLUMN COLNew CHAR(25)
But it will be added at the end, not in between the existing columns.
Model1.belongsTo(Model2, { as: 'alias' })
Model1.findAll({include: [{model: Model2 , as: 'alias' }]},{raw: true}).success(onSuccess).error(onError);
A working example to implement the accepted answer by adding a "Boolean" column to an existing table in an oracle database (using number
type):
ALTER TABLE my_table_name ADD (
my_new_boolean_column number(1) DEFAULT 0 NOT NULL
CONSTRAINT my_new_boolean_column CHECK (my_new_boolean_column in (1,0))
);
This creates a new column in my_table_name
called my_new_boolean_column
with default values of 0. The column will not accept NULL
values and restricts the accepted values to either 0
or 1
.
There is a small (HUGE) understatement here. If you want to copy a HashMap
with nested structures, HashMap.putAll()
will copy by reference, because it doesn't know how to exactly copy your object. For example:
import java.util.*;
class Playground {
public static void main(String[ ] args) {
Map<Integer, Map<Integer,List<Float>>> dataA = new HashMap<>();
Map<Integer, Map<Integer,List<Float>>> dataB = new HashMap<>();
dataA.put(1, new HashMap<>());
dataB.putAll(dataA);
assert(dataB.get(1).size() == 0);
dataA.get(1).put(2, new ArrayList<>());
if (dataB.get(1).size() == 1) { // true
System.out.println(
"Sorry object reference was copied - not the values");
}
}
}
So basically you will need to copy the fields yourself like here
List <Float> aX = new ArrayList<>(accelerometerReadingsX);
List <Float> aY = new ArrayList<>(accelerometerReadingsY);
List <Float> gX = new ArrayList<>(gyroscopeReadingsX);
List <Float> gY = new ArrayList<>(gyroscopeReadingsY);
Map<Integer, Map<Integer, Float>> readings = new HashMap<>();
Map<Integer,List<Float>> accelerometerReadings = new HashMap<>();
accelerometerReadings.put(X_axis, aX);
accelerometerReadings.put(Y_axis, aY);
readings.put(Sensor.TYPE_ACCELEROMETER, accelerometerReadings);
Map<Integer,List<Float>> gyroscopeReadings = new HashMap<>();
gyroscopeReadings.put(X_axis, gX);
gyroscopeReadings.put(Y_axis, gY);
readings.put(Sensor.TYPE_GYROSCOPE, gyroscopeReadings);
Modified from senderle
's method (above). I found that Python's defaultdict
is ideal for creating a trie or a prefix tree.
from collections import defaultdict
class Trie:
"""
Implement a trie with insert, search, and startsWith methods.
"""
def __init__(self):
self.root = defaultdict()
# @param {string} word
# @return {void}
# Inserts a word into the trie.
def insert(self, word):
current = self.root
for letter in word:
current = current.setdefault(letter, {})
current.setdefault("_end")
# @param {string} word
# @return {boolean}
# Returns if the word is in the trie.
def search(self, word):
current = self.root
for letter in word:
if letter not in current:
return False
current = current[letter]
if "_end" in current:
return True
return False
# @param {string} prefix
# @return {boolean}
# Returns if there is any word in the trie
# that starts with the given prefix.
def startsWith(self, prefix):
current = self.root
for letter in prefix:
if letter not in current:
return False
current = current[letter]
return True
# Now test the class
test = Trie()
test.insert('helloworld')
test.insert('ilikeapple')
test.insert('helloz')
print test.search('hello')
print test.startsWith('hello')
print test.search('ilikeapple')
You need to add a '/' after the dir name
<exclude name="WEB-INF/" />
Java 8 style, using the java.time classes:
// Monday, February 29 is a leap day in 2016 (otherwise, February only has 28 days)
LocalDate start = LocalDate.parse("2016-02-28"),
end = LocalDate.parse("2016-03-02");
// 4 days between (end is inclusive in this example)
Stream.iterate(start, date -> date.plusDays(1))
.limit(ChronoUnit.DAYS.between(start, end) + 1)
.forEach(System.out::println);
Output:
2016-02-28
2016-02-29
2016-03-01
2016-03-02
Alternative:
LocalDate next = start.minusDays(1);
while ((next = next.plusDays(1)).isBefore(end.plusDays(1))) {
System.out.println(next);
}
Java 9 added the datesUntil() method:
start.datesUntil(end.plusDays(1)).forEach(System.out::println);
The runas command does not allow a password on its command line. This is by design (and also the reason you cannot pipe a password to it as input). Raymond Chen says it nicely:
The RunAs program demands that you type the password manually. Why doesn't it accept a password on the command line?
This was a conscious decision. If it were possible to pass the password on the command line, people would start embedding passwords into batch files and logon scripts, which is laughably insecure.
In other words, the feature is missing to remove the temptation to use the feature insecurely.
In the windows environment use "anaconda prompt" instead of "command prompt".
Interesting artcle...
I've had a quick hunt around on google and found nothing, but you might want to check some of the comments - plenty of people seem to have had a go at implementing a simple component demo, you might want to take a look at some of theirs for inspiration:
http://www.unseen-academy.de/componentSystem.html
http://www.mcshaffry.com/GameCode/thread.php?threadid=732
http://www.codeplex.com/Wikipage?ProjectName=elephant
Also, the comments themselves seem to have a fairly in-depth discussion on how you might code up such a system.
You're looking for the OpenFileDialog
class.
For example:
Sub SomeButton_Click(sender As Object, e As EventArgs) Handles SomeButton.Click
Using dialog As New OpenFileDialog
If dialog.ShowDialog() <> DialogResult.OK Then Return
File.Copy(dialog.FileName, newPath)
End Using
End Sub
You can always take the CTE, (Common Tabular Expression), approach.
;WITH updateCTE AS
(
SELECT ID, TITLE
FROM HOLD_TABLE
WHERE ID = 101
)
UPDATE updateCTE
SET TITLE = 'TEST';
Another solution:
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.7.5.201505241946</version>
<executions>
<execution>
<id>default-prepare-agent</id>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>default-report</id>
<phase>prepare-package</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
<execution>
<id>default-check</id>
<goals>
<goal>check</goal>
</goals>
<configuration>
<rules>
<rule implementation="org.jacoco.maven.RuleConfiguration">
<excludes>
<exclude>com.mypackage1</exclude
<exclude>com.mypackage2</exclude>
</excludes>
<element>PACKAGE</element>
<limits>
<limit implementation="org.jacoco.report.check.Limit">
<counter>COMPLEXITY</counter>
<value>COVEREDRATIO</value>
<minimum>0.85</minimum>
</limit>
</limits>
</rule>
</rules>
</configuration>
</execution>
</executions>
</plugin>
Please note that, we are using "<element>PACKAGE</element>"
in the configuration which then helps us to exclude at package level.
The following code (pulled from http://maximeparmentier.com/2012/11/06/bind-show-hide-events-with-jquery/) will enable you to use $('#someDiv').on('show', someFunc);
.
(function ($) {
$.each(['show', 'hide'], function (i, ev) {
var el = $.fn[ev];
$.fn[ev] = function () {
this.trigger(ev);
return el.apply(this, arguments);
};
});
})(jQuery);
Use the keyword and
, not &
because &
is a bit operator.
Be careful with this... just so you know, in Java and C++, the &
operator is ALSO a bit operator. The correct way to do a boolean comparison in those languages is &&
. Similarly |
is a bit operator, and ||
is a boolean operator. In Python and
and or
are used for boolean comparisons.
Just return any kind of list. ArrayList will be fine, its not static.
ArrayList<yourClass> list = new ArrayList<yourClass>();
for (yourClass item : yourArray)
{
list.add(item);
}
With recent matplotlib versions you might want to try Constrained Layout.
Too bad pandas does not handle it well...
In case anyone needs to try and merge two dataframes together on the index (instead of another column), this also works!
T1 and T2 are dataframes that have the same indices
import pandas as pd
T1 = pd.merge(T1, T2, on=T1.index, how='outer')
P.S. I had to use merge because append would fill NaNs in unnecessarily.
P/Invoke powers activate!
[DllImport("msvcrt.dll", CallingConvention=CallingConvention.Cdecl)]
static extern int memcmp(byte[] b1, byte[] b2, long count);
static bool ByteArrayCompare(byte[] b1, byte[] b2)
{
// Validate buffers are the same length.
// This also ensures that the count does not exceed the length of either buffer.
return b1.Length == b2.Length && memcmp(b1, b2, b1.Length) == 0;
}
And to consume the hidden ID input back on your Edit action method:
[HttpPost]
public ActionResult Edit(FormCollection collection)
{
ViewModel.ID = Convert.ToInt32(collection["ID"]);
}
No, this is very incorrect.
HTTP is an application protocol. 200 implies that the response contains a payload that represents the status of the requested resource. An error message usually is not a representation of that resource.
If something goes wrong while processing GET, the right status code is 4xx ("you messed up") or 5xx ("I messed up").
After hours of finding ways on how to get the data from the row selected on a WPF DataGrid Control, as I was using MongoDB. I found this post and used Tony's answer. I revised the code to be relevant to my project. Maybe someone can use this to get an idea.
private void selectionChanged(object sender, SelectionChangedEventArgs e)
{
facultyData row = (facultyData)facultyDataGrid.SelectedItem;
facultyID_Textbox.Text = row.facultyID;
lastName_TextBox.Text = row.lastName;
firstName_TextBox.Text = row.firstName;
middleName_TextBox.Text = row.middleName;
age_TextBox.Text = row.age.ToString();
}
}
class facultyData
{
public ObjectId _id { get; set; }
public string facultyID { get; set; }
public string acadYear { get; set; }
public string program { get; set; }
}
You can use grep
:
grep -o "+\S\+" in.txt | tr '\n' ','
which finds the string starting with +
, followed by any string \S\+
, then convert new line characters into commas. This should be pretty quick for large files.
Swift 5.3 in XCode 12.2 Playgrounds
Place the cursor wherever in the code the #insertLiteral
would have been in earlier versions. Select from the top-menu Editor->Insert Image Literal...
and navigate to the file. Click Open
.
The file is added to a playground Resource folder and will then appear when the playground is run in whichever view it was positioned when selected.
If a file is already in the playground Bundle, e.g. in /Resources, it can be dragged directly to the required position in the code (where it will be represented by an icon).
cf. Apple help docs give details of this and how to place other colour and file literals.
pip uninstall pip
will work
Reason : Old versions of Tomcat 6 JSP compiler don't seem to be aware of JDK 8 constant pool enhancements - eg. method handles. New code in JDK 8u is using a method handle instead of creating an anonymous class. This will cause the method handle to be listed in the constant pool and the eclipse compiler will choke on this - https://bz.apache.org/bugzilla/show_bug.cgi?id=56613
Yes, it might be really nice to have the capability to do as you have written. But it is not possible in MATLAB. Many of my utilities that allow defaults for the arguments tend to be written with explicit checks in the beginning like this:
if (nargin<3) or isempty(myParameterName)
MyParameterName = defaultValue;
elseif (.... tests for non-validity of the value actually provided ...)
error('The sky is falling!')
end
Ok, so I would generally apply a better, more descriptive error message. See that the check for an empty variable allows the user to pass in an empty pair of brackets, [], as a placeholder for a variable that will take on its default value. The author must still supply the code to replace that empty argument with its default value though.
My utilities that are more sophisticated, with MANY parameters, all of which have default arguments, will often use a property/value pair interface for default arguments. This basic paradigm is seen in the handle graphics tools in matlab, as well as in optimset, odeset, etc.
As a means to work with these property/value pairs, you will need to learn about varargin, as a way of inputing a fully variable number of arguments to a function. I wrote (and posted) a utility to work with such property/value pairs, parse_pv_pairs.m. It helps you to convert property/value pairs into a matlab structure. It also enables you to supply default values for each parameter. Converting an unwieldy list of parameters into a structure is a VERY nice way to pass them around in MATLAB.
<html>
<head>
<meta charset="UTF-8">
<title>LoginDB</title>
</head>
<body>
<?php
$con= mysqli_connect("localhost", "root", "", "detail");
<!-- detail is the database in MySqli Database -->
if(!$con)
{
die('not connected');
}
$con= mysqli_query($con, "select * from signup");
<!-- signup is the table in the detail_Database -->
?>
<div>
<td>Login Page Database</td>
<table border="1">
<th> First Name</th>
<th>Last Name</th>
<th>UserName</th>
<th>Password</th>
<th>Gender</th>
<th>D.O.B.</th>
<th>Phone Number</th>
<th>Address</th>
</tr>
<?php
while($row= mysqli_fetch_array($con))
<!-- Fetch each row from signup Table -->
{
?>
<tr>
<td><?php echo $row['FirstName']; ?></td>
<td><?php echo $row['LastName']; ?></td>
<td><?php echo $row['Username']; ?></td>
<td><?php echo $row['Password'] ;?></td>
<td><?php echo $row['Gender'] ;?></td>
<td><?php echo $row['DOB'] ;?></td>
<td><?php echo $row['PhoneNumber'] ;?></td>
<td><?php echo $row['Address'] ;?></td>
</tr>
<?php
}
?>
</table>
</div>
</body>
</html>
I have a BindingList<> object bind as a data source to dataGridView.
BindingList x1;
x1 = new BindingList<sourceObject>();
BindingSource bsx1 = new BindingSource();
bsx1.DataSource = x1;
dataGridView1.DataSource = bsx1;
When I clicked the column header, no sorting takes place. I used the SortableBindingList answer provided by Tom Bushell. Having included two source files into my project
Then this change is made to my code:
Be.Timvw.Framework.ComponentModel.SortableBindingList x1; // 1
x1 = new Be.Timvw.Framework.ComponentModel.SortableBindingList<sourceObject>(); // 2
BindingSource bsx1 = new BindingSource();
bsx1.DataSource = x1;
dataGridView1.DataSource = bsx1;
After these changes I performed a build on my program. I am now able to sort by clicking the column headers. Only two lines need changing, they are highlighted in the code snippet above by trailing comments.
The docs indicate that numpy.correlate
is not what you are looking for:
numpy.correlate(a, v, mode='valid', old_behavior=False)[source]
Cross-correlation of two 1-dimensional sequences.
This function computes the correlation as generally defined in signal processing texts:
z[k] = sum_n a[n] * conj(v[n+k])
with a and v sequences being zero-padded where necessary and conj being the conjugate.
Instead, as the other comments suggested, you are looking for a Pearson correlation coefficient. To do this with scipy try:
from scipy.stats.stats import pearsonr
a = [1,4,6]
b = [1,2,3]
print pearsonr(a,b)
This gives
(0.99339926779878274, 0.073186395040328034)
You can also use numpy.corrcoef
:
import numpy
print numpy.corrcoef(a,b)
This gives:
[[ 1. 0.99339927]
[ 0.99339927 1. ]]
From Dianne Hackborn:
Things That Cannot Change:
The most obvious and visible of these is the “manifest package name,” the unique name you give to your application in its AndroidManifest.xml. The name uses a Java-language-style naming convention, with Internet domain ownership helping to avoid name collisions. For example, since Google owns the domain “google.com”, the manifest package names of all of our applications should start with “com.google.” It’s important for developers to follow this convention in order to avoid conflicts with other developers.
Once you publish your application under its manifest package name, this is the unique identity of the application forever more. Switching to a different name results in an entirely new application, one that can’t be installed as an update to the existing application.
More on things you cannot change here
Regarding your question on the URL from Google Play, the package defined there is linked to the app's fully qualified package you have in your AndroidManifest.xml file. More on Google Play's link formats here.
Based on the syntax, I'm guessing this is Python. The point of a tuple is that it is immutable, so you need to replace each element with a new tuple:
list = [l + (''.join(l),) for l in list]
# output:
[('1', '2', '3', '4', '1234'),
('2', '3', '4', '5', '2345'),
('3', '4', '5', '6', '3456'),
('4', '5', '6', '7', '4567')]
Considering that the accepted answer is probably inefficient for large arrays, O(nm), I usually prefer this approach, O(2n + 2m):
function mergeArrays(arr1 = [], arr2 = []){
//Creates an object map of id to object in arr1
const arr1Map = arr1.reduce((acc, o) => {
acc[o.id] = o;
return acc;
}, {});
//Updates the object with corresponding id in arr1Map from arr2,
//creates a new object if none exists (upsert)
arr2.forEach(o => {
arr1Map[o.id] = o;
});
//Return the merged values in arr1Map as an array
return Object.values(arr1Map);
}
Unit test:
it('Merges two arrays using id as the key', () => {
var arr1 = [{id:'124',name:'qqq'}, {id:'589',name:'www'}, {id:'45',name:'eee'}, {id:'567',name:'rrr'}];
var arr2 = [{id:'124',name:'ttt'}, {id:'45',name:'yyy'}];
const actual = mergeArrays(arr1, arr2);
const expected = [{id:'124',name:'ttt'}, {id:'589',name:'www'}, {id:'45',name:'yyy'}, {id:'567',name:'rrr'}];
expect(actual.sort((a, b) => (a.id < b.id)? -1: 1)).toEqual(expected.sort((a, b) => (a.id < b.id)? -1: 1));
})
You have to use code similar to this:
echo "<div id='divwithform'>";
if(isset($_POST['submit'])) // if form was submitted (if you came here with form data)
{
echo "Success";
}
else // if form was not submitted (if you came here without form data)
{
echo "<form> ... </form>";
}
echo "</div>";
Code with if
like this is typical for many pages, however this is very simplified.
Normally, you have to validate some data in first "if" (check if form fields were not empty etc).
Please visit www.thenewboston.org or phpacademy.org. There are very good PHP video tutorials, including forms.
Try the following, not sure which will work for all browsers or the browser you are working with, but it would be best to try all:
<textarea style="overflow:auto"></textarea>
Or
<textarea style="overflow:hidden"></textarea>
...As suggested above
You can also try adding this, I never used it before, just saw it posted on a site today:
<textarea style="resize:none"></textarea>
This last option would remove the ability to resize the textarea
. You can find more information on the CSS resize
property here
Change servername,username, password,dbname,path of your file, tablename and the field which is in your database you want to insert
<?php
$servername = "localhost";
$username = "root";
$password = "";
$dbname = "bd_dashboard";
//For create connection
$conn = new mysqli($servername, $username, $password, $dbname);
$query = "LOAD DATA LOCAL INFILE
'C:/Users/lenovo/Desktop/my_data.csv'
INTO TABLE test_tab
FIELDS TERMINATED BY ','
LINES TERMINATED BY '\n'
IGNORE 1 LINES
(name,mob)";
if (!$result = mysqli_query($conn, $query)){
echo '<script>alert("Oops... Some Error occured.");</script>';
exit();
//exit(mysqli_error());
}else{
echo '<script>alert("Data Inserted Successfully.");</script>'
}
?>
This might help somebody. Maybe it's a bug in Node.
var arr = [ { name: 'a' }, { name: 'b' }, { name: 'c' } ];
var c = 0;
This doesn't work:
while (arr[c].name) { c++; } // TypeError: Cannot read property 'name' of undefined
But this works...
while (arr[c]) { c++; } // Inside the loop arr[c].name works as expected.
This works too...
while ((arr[c]) && (arr[c].name)) { c++; }
BUT simply reversing the order does not work. I'm guessing there's some kind of internal optimization here that breaks Node.
while ((arr[c].name) && (arr[c])) { c++; }
Error says the array is undefined, but it's not :-/ Node v11.15.0
<form target="_blank">
<button class="btn btn-primary" formaction="http://www.google.com">Google</button>
</form>
Something like this should do it :
UPDATE table1
SET table1.Price = table2.price
FROM table1 INNER JOIN table2 ON table1.id = table2.id
You can also try this:
UPDATE table1
SET price=(SELECT price FROM table2 WHERE table1.id=table2.id);
Instead of:
$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00' AND created<='{$end} 23:59:59' ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error());
while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
$result.="{$row['email']},";
$result.="\n";
echo $result;
}
Use:
$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00' AND created<='{$end} 23:59:59' ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error());
while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
echo implode(",", $row)."\n";
}
This works for both cached and dynamically loaded images.
function LoadImage(imgSrc, callback){
var image = new Image();
image.src = imgSrc;
if (image.complete) {
callback(image);
image.onload=function(){};
} else {
image.onload = function() {
callback(image);
// clear onLoad, IE behaves erratically with animated gifs otherwise
image.onload=function(){};
}
image.onerror = function() {
alert("Could not load image.");
}
}
}
To use this script:
function AlertImageSize(image) {
alert("Image size: " + image.width + "x" + image.height);
}
LoadImage("http://example.org/image.png", AlertImageSize);
Under Flask, this works and handles datatime fields, transforming a field of type
'time': datetime.datetime(2018, 3, 22, 15, 40)
into
"time": "2018-03-22 15:40:00"
:
obj = {c.name: str(getattr(self, c.name)) for c in self.__table__.columns}
# This to get the JSON body
return json.dumps(obj)
# Or this to get a response object
return jsonify(obj)
That's a tricky one... Your storage letter must be capical. For example "C:\..."
I did not find a CRTP implementation among the answers, so here it is:
template<typename HeirT>
class Singleton
{
public:
Singleton() = delete;
Singleton(const Singleton &) = delete;
Singleton &operator=(const Singleton &) = delete;
static HeirT &instance()
{
static HeirT instance;
return instance;
}
};
To use just inherit your class from this, like: class Test : public Singleton<Test>
There is a combination of techniques which I found useful in solving this issue:
with open(file, 'r+') as fd:
contents = fd.readlines()
contents.insert(index, new_string) # new_string should end in a newline
fd.seek(0) # readlines consumes the iterator, so we need to start over
fd.writelines(contents) # No need to truncate as we are increasing filesize
In our particular application, we wanted to add it after a certain string:
with open(file, 'r+') as fd:
contents = fd.readlines()
if match_string in contents[-1]: # Handle last line to prevent IndexError
contents.append(insert_string)
else:
for index, line in enumerate(contents):
if match_string in line and insert_string not in contents[index + 1]:
contents.insert(index + 1, insert_string)
break
fd.seek(0)
fd.writelines(contents)
If you want it to insert the string after every instance of the match, instead of just the first, remove the else:
(and properly unindent) and the break
.
Note also that the and insert_string not in contents[index + 1]:
prevents it from adding more than one copy after the match_string
, so it's safe to run repeatedly.
use Date.prototype.toLocaleTimeString()
as documented here
please note the locale example en-US in the url.
Use following hexadecimal code for transparent text colour: #00FFFF00
You could use cast
(as int) after replacing NaN
with 0
,
data_df = df.withColumn("Plays", df.call_time.cast('float'))
For me works fine:
@RequestMapping (value = "/{id}", method = RequestMethod.GET)
public ResponseEntity<Object> redirectToExternalUrl() throws URISyntaxException {
URI uri = new URI("http://www.google.com");
HttpHeaders httpHeaders = new HttpHeaders();
httpHeaders.setLocation(uri);
return new ResponseEntity<>(httpHeaders, HttpStatus.SEE_OTHER);
}
i made a method that merge cells and put border.
protected void setMerge(Sheet sheet, int numRow, int untilRow, int numCol, int untilCol, boolean border) {
CellRangeAddress cellMerge = new CellRangeAddress(numRow, untilRow, numCol, untilCol);
sheet.addMergedRegion(cellMerge);
if (border) {
setBordersToMergedCells(sheet, cellMerge);
}
}
protected void setBordersToMergedCells(Sheet sheet, CellRangeAddress rangeAddress) {
RegionUtil.setBorderTop(BorderStyle.MEDIUM, rangeAddress, sheet);
RegionUtil.setBorderLeft(BorderStyle.MEDIUM, rangeAddress, sheet);
RegionUtil.setBorderRight(BorderStyle.MEDIUM, rangeAddress, sheet);
RegionUtil.setBorderBottom(BorderStyle.MEDIUM, rangeAddress, sheet);
}
If you want this in kotlin . And perfectly working
private fun exportDbFile() {
try {
//Existing DB Path
val DB_PATH = "/data/packagename/databases/mydb.db"
val DATA_DIRECTORY = Environment.getDataDirectory()
val INITIAL_DB_PATH = File(DATA_DIRECTORY, DB_PATH)
//COPY DB PATH
val EXTERNAL_DIRECTORY: File = Environment.getExternalStorageDirectory()
val COPY_DB = "/mynewfolder/mydb.db"
val COPY_DB_PATH = File(EXTERNAL_DIRECTORY, COPY_DB)
File(COPY_DB_PATH.parent!!).mkdirs()
val srcChannel = FileInputStream(INITIAL_DB_PATH).channel
val dstChannel = FileOutputStream(COPY_DB_PATH).channel
dstChannel.transferFrom(srcChannel,0,srcChannel.size())
srcChannel.close()
dstChannel.close()
} catch (excep: Exception) {
Toast.makeText(this,"ERROR IN COPY $excep",Toast.LENGTH_LONG).show()
Log.e("FILECOPYERROR>>>>",excep.toString())
excep.printStackTrace()
}
}
SQL doesn't typically allow you to reference column aliases in WHERE, GROUP BY or HAVING clauses. MySQL does support referencing column aliases in the GROUP BY and HAVING, but I stress that it will cause problems when porting such queries to other databases.
When in doubt, use the actual column name:
SELECT t.lat AS latitude
FROM poi_table t
WHERE t.lat < 500
I added a table alias to make it easier to see what is an actual column vs alias.
A computed column, like the one you see here:
SELECT *,
( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) AS distance
FROM poi_table
WHERE distance < 500;
...doesn't change that you can not reference a column alias in the WHERE clause. For that query to work, you'd have to use:
SELECT *,
( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) AS distance
FROM poi_table
WHERE ( 6371*1000 * acos( cos( radians(42.3936868308) ) * cos( radians( lat ) ) * cos( radians( lon ) - radians(-72.5277256966) ) + sin( radians(42.3936868308) ) * sin( radians( lat ) ) ) ) < 500;
Be aware that using a function on a column (IE: RADIANS(lat)
) will render an index useless, if one exists on the column.
You can do (pre-Java 8):
List<Enum> enumValues = Arrays.asList(Enum.values());
or
List<Enum> enumValues = new ArrayList<Enum>(EnumSet.allOf(Enum.class));
Using Java 8 features, you can map each constant to its name:
List<String> enumNames = Stream.of(Enum.values())
.map(Enum::name)
.collect(Collectors.toList());
Starting with Requests version 2.4.2, you can use the json=
parameter (which takes a dictionary) instead of data=
(which takes a string) in the call:
>>> import requests
>>> r = requests.post('http://httpbin.org/post', json={"key": "value"})
>>> r.status_code
200
>>> r.json()
{'args': {},
'data': '{"key": "value"}',
'files': {},
'form': {},
'headers': {'Accept': '*/*',
'Accept-Encoding': 'gzip, deflate',
'Connection': 'close',
'Content-Length': '16',
'Content-Type': 'application/json',
'Host': 'httpbin.org',
'User-Agent': 'python-requests/2.4.3 CPython/3.4.0',
'X-Request-Id': 'xx-xx-xx'},
'json': {'key': 'value'},
'origin': 'x.x.x.x',
'url': 'http://httpbin.org/post'}
With Postgres 9.4 this can be done a bit shorter:
select c.*
from comments c
join (
select *
from unnest(array[43,47,42]) with ordinality
) as x (id, ordering) on c.id = x.id
order by x.ordering;
Or a bit more compact without a derived table:
select c.*
from comments c
join unnest(array[43,47,42]) with ordinality as x (id, ordering)
on c.id = x.id
order by x.ordering
Removing the need to manually assign/maintain a position to each value.
With Postgres 9.6 this can be done using array_position()
:
with x (id_list) as (
values (array[42,48,43])
)
select c.*
from comments c, x
where id = any (x.id_list)
order by array_position(x.id_list, c.id);
The CTE is used so that the list of values only needs to be specified once. If that is not important this can also be written as:
select c.*
from comments c
where id in (42,48,43)
order by array_position(array[42,48,43], c.id);
In case of multi monitor and If you prefer to center on correct monitor/screen then you might like to try these lines:
// Save values for future(for example, to center a form on next launch)
int screen_x = Screen.FromControl(Form).WorkingArea.X;
int screen_y = Screen.FromControl(Form).WorkingArea.Y;
// Move it and center using correct screen/monitor
Form.Left = screen_x;
Form.Top = screen_y;
Form.Left += (Screen.FromControl(Form).WorkingArea.Width - Form.Width) / 2;
Form.Top += (Screen.FromControl(Form).WorkingArea.Height - Form.Height) / 2;
To do this in Windows CLI environment, the best way I can find is to use the mode command and parse the output.
function getTerminalSizeOnWindows() {
$output = array();
$size = array('width'=>0,'height'=>0);
exec('mode',$output);
foreach($output as $line) {
$matches = array();
$w = preg_match('/^\s*columns\:?\s*(\d+)\s*$/i',$line,$matches);
if($w) {
$size['width'] = intval($matches[1]);
} else {
$h = preg_match('/^\s*lines\:?\s*(\d+)\s*$/i',$line,$matches);
if($h) {
$size['height'] = intval($matches[1]);
}
}
if($size['width'] AND $size['height']) {
break;
}
}
return $size;
}
I hope it's useful!
NOTE: The height returned is the number of lines in the buffer, it is not the number of lines that are visible within the window. Any better options out there?
Just:
myfile = open(filename)
onecaracter = myfile.read(1)
There are a few alternate ways to figure out the currently used python in Linux is:
which python
command.command -v python
commandtype python
commandSimilarly On Windows with Cygwin will also result the same.
kuvivek@HOSTNAME ~
$ which python
/usr/bin/python
kuvivek@HOSTNAME ~
$ whereis python
python: /usr/bin/python /usr/bin/python3.4 /usr/lib/python2.7 /usr/lib/python3.4 /usr/include/python2.7 /usr/include/python3.4m /usr/share/man/man1/python.1.gz
kuvivek@HOSTNAME ~
$ which python3
/usr/bin/python3
kuvivek@HOSTNAME ~
$ command -v python
/usr/bin/python
kuvivek@HOSTNAME ~
$ type python
python is hashed (/usr/bin/python)
If you are already in the python shell. Try anyone of these. Note: This is an alternate way. Not the best pythonic way.
>>> import os
>>> os.popen('which python').read()
'/usr/bin/python\n'
>>>
>>> os.popen('type python').read()
'python is /usr/bin/python\n'
>>>
>>> os.popen('command -v python').read()
'/usr/bin/python\n'
>>>
>>>
If you are not sure of the actual path of the python command and is available in your system, Use the following command.
pi@osboxes:~ $ which python
/usr/bin/python
pi@osboxes:~ $ readlink -f $(which python)
/usr/bin/python2.7
pi@osboxes:~ $
pi@osboxes:~ $ which python3
/usr/bin/python3
pi@osboxes:~ $
pi@osboxes:~ $ readlink -f $(which python3)
/usr/bin/python3.7
pi@osboxes:~ $
List<String[]> addresses = new ArrayList<String[]>();
String[] addressesArr = new String[3];
addressesArr[0] = "zero";
addressesArr[1] = "one";
addressesArr[2] = "two";
addresses.add(addressesArr);
It is impossible to "uncommit" a revision, but you can revert your working copy to version 1943 and commit that as version 1945. The versions 1943 and 1945 will be identical, effectively reverting the changes.
(Alt + Shift + X) , then M
to Run Maven Build. You will need to specify the Maven goals you want on Run -> Run Configurations
In case you have NA's:
sapply(data, mean, na.rm = T) # Returns a vector (with names)
lapply(data, mean, na.rm = T) # Returns a list
Remember that "mean" needs numeric data. If you have mixed class data, then use:
numdata<-data[sapply(data, is.numeric)]
sapply(numdata, mean, na.rm = T) # Returns a vector
lapply(numdata, mean, na.rm = T) # Returns a list
No one probably really wants to remove row one. So if you are looking for something meaningful, that is conditional selection
#remove rows that have long length and "0" value for vector E
>> setNew<-set[!(set$length=="long" & set$E==0),]
If file size is still too large it could help using ps2pdf to downscale the resolution of the produced pdf file:
pdf2ps input.pdf tmp.ps
ps2pdf -dPDFSETTINGS=/screen -dDownsampleColorImages=true -dColorImageResolution=200 -dColorImageDownsampleType=/Bicubic tmp.ps output.pdf
Adjust the value of the -dColorImageResolution option to achieve a result that fits your needs (the value describes the image resolution in DPIs). If your input file is in grayscale, replacing Color through Gray or using both options in the above command could also help. Further fine-tuning is possible by changing the -dPDFSETTINGS option to /default or /printer. For explanations of the all possible options consult the ps2pdf manual.
You can use this BASH script:
#!/bin/bash
USER="YOUR_DATABASE_USER"
PASSWORD="YOUR_USER_PASSWORD"
DB_NAME="DATABASE_NAME"
CHARACTER_SET="utf8" # your default character set
COLLATE="utf8_general_ci" # your default collation
tables=`mysql -u $USER -p$PASSWORD -e "SELECT tbl.TABLE_NAME FROM information_schema.TABLES tbl WHERE tbl.TABLE_SCHEMA = '$DB_NAME' AND tbl.TABLE_TYPE='BASE TABLE'"`
for tableName in $tables; do
if [[ "$tableName" != "TABLE_NAME" ]] ; then
mysql -u $USER -p$PASSWORD -e "ALTER TABLE $DB_NAME.$tableName DEFAULT CHARACTER SET $CHARACTER_SET COLLATE $COLLATE;"
echo "$tableName - done"
fi
done
I know this is an old and answered question and I'm not looking for votes I just want to add an extra little thing that I think might help newcomers.
yes appendChild
is a DOM
method and append
is JQuery method but practically the key difference is that appendChild
takes a node as a parameter by that I mean if you want to add an empty paragraph to the DOM you need to create that p
element first
var p = document.createElement('p')
then you can add it to the DOM whereas JQuery append
creates that node for you and adds it to the DOM right away whether it's a text element or an html element
or a combination!
$('p').append('<span> I have been appended </span>');
Pydev for Eclipse, as others have mentioned, is good.
Netbeans has a beta Python plugin that is a little rough around the edges, but could turn into something really cool.
Additionally there is a long list of programming centric text editors for the mac, that may or may not fit your needs.
I normally use action="", which is XHTML valid and retains the GET data in the URL.
Here is an example , How to search images in a document by src attribute :
document.querySelectorAll("img[src='https://pbs.twimg.com/profile_images/........jpg']");
Looks like what you're trying to do is access property '0' of an undefined value in your 'data' array. If you look at your while statement, it appears this is happening because you are incrementing 'i' by 1 for each loop. Thus, the first time through, you will access, 'data[1]', but on the next loop, you'll access 'data[2]' and so on and so forth, regardless of the length of the array. This will cause you to eventually hit an array element which is undefined, if you never find an item in your array with property '0' which is equal to 'name'.
Ammend your while statement to this...
for(var iIndex = 1; iIndex <= data.length; iIndex++){
if (data[iIndex][0] === name){
break;
};
Logger.log(data[i][0]);
};
CSS transitions only animate from one set of styles to another; what you're looking for is CSS animations.
You need to define the animation keyframes and apply it to the element:
@keyframes changewidth {
from {
width: 100px;
}
to {
width: 300px;
}
}
div {
animation-duration: 0.1s;
animation-name: changewidth;
animation-iteration-count: infinite;
animation-direction: alternate;
}
Check out the link above to figure out how to customize it to your liking, and you'll have to add browser prefixes.
From the tutorial:
from sqlalchemy import or_
filter(or_(User.name == 'ed', User.name == 'wendy'))
I believe you need quotes around the model
:
JSON.stringify({ "model": source })
int days = 1;
var newDate = new Date(Date.now() + days*24*60*60*1000);
var days = 2;_x000D_
var newDate = new Date(Date.now()+days*24*60*60*1000);_x000D_
_x000D_
document.write('Today: <em>');_x000D_
document.write(new Date());_x000D_
document.write('</em><br/> New: <strong>');_x000D_
document.write(newDate);
_x000D_