Please excuse the length of this post.
This is a working example using ASP.NET Core version 2.5.
Something of note is that the project.json is obsolete (see here) in favor of .csproj. An issue with .csproj. file is the large amount of features and the fact there is no central location for its documentation (see here).
One more thing, this example is running ASP.NET core in a Docker Linux (alpine 3.9) container; so the paths will reflect that. It also uses gulp ^4.0. However, with some modification, it should work with older versions of ASP.NET Core, Gulp, NodeJS, and also without Docker.
But here's an answer:
gulpfile.js see the real working exmple here
// ROOT and OUT_DIR are defined in the file above. The OUT_DIR value comes from .NET Core when ASP.net us built.
const paths = {
styles: {
src: `${ROOT}/scss/**/*.scss`,
dest: `${OUT_DIR}/css`
},
bootstrap: {
src: [
`${ROOT}/node_modules/bootstrap/dist/css/bootstrap.min.css`,
`${ROOT}/node_modules/startbootstrap-creative/css/creative.min.css`
],
dest: `${OUT_DIR}/css`
},
fonts: {// enter correct paths for font-awsome here.
src: [
`${ROOT}/node_modules/fontawesome/...`,
],
dest: `${OUT_DIR}/fonts`
},
js: {
src: `${ROOT}/js/**/*.js`,
dest: `${OUT_DIR}/js`
},
vendorJs: {
src: [
`${ROOT}/node_modules/jquery/dist/jquery.min.js`
`${ROOT}/node_modules/bootstrap/dist/js/bootstrap.min.js`
],
dest: `${OUT_DIR}/js`
}
};
// Copy files from node_modules folder to the OUT_DIR.
let fonts = () => {
return gulp
.src(paths.styles.src)
.pipe(gulp.dest(paths.styles.dest));
};
// This compiles all the vendor JS files into one, jsut remove the concat to keep them seperate.
let vendorJs = () => {
return gulp
.src(paths.vendorJs.src)
.pipe(concat('vendor.js'))
.pipe(gulp.dest(paths.vendorJs.dest));
}
// Build vendorJs before my other files, then build all other files in parallel to save time.
let build = gulp.series(vendorJs, gulp.parallel(js, styles, bootstrap));
module.exports = {// Only add what we intend to use externally.
default: build,
watch
};
Add a Target in .csproj file. Notice we also added a Watch to watch
and exclude if we take advantage of dotnet run watch
command.
<ItemGroup>
<Watch Include="gulpfile.js;js/**/*.js;scss/**/*.scss" Exclude="node_modules/**/*;bin/**/*;obj/**/*" />
</ItemGroup>
<Target Name="BuildFrontend" BeforeTargets="Build">
<Exec Command="yarn install" />
<Exec Command="yarn run build -o $(OutputPath)" />
</Target>
Now when dotnet run build
is run it will also install and build node modules.
I did this in my local environment. Wasn't difficult but obviously it was done in "unsupported" way.
To do the downgrade you need just to download php 5.3 from http://php.net/releases/ (zip archive), than go to xampp folder and copy subfolder "php" to e.g. php5.5 (just for backup). Than remove content of the folder php and unzip content of zip archive downloaded from php.net. The next step is to adjust configuration (php.ini) - you can refer to your backed-up version from php 5.5. After that just run xampp control utility - everything should work (at least worked in my local environment). I didn't found any problem with such installation, although I didn't tested this too intensively.
In my experience there are two places where we want to use uint8_t to mean 8 bits (and uint16_t, etc) and where we can have fields smaller than 8 bits. Both places are where space matters and we often need to look at a raw dump of the data when debugging and need to be able to quickly determine what it represents.
The first is in RF protocols, especially in narrow-band systems. In this environment we may need to pack as much information as we can into a single message. The second is in flash storage where we may have very limited space (such as in embedded systems). In both cases we can use a packed data structure in which the compiler will take care of the packing and unpacking for us:
#pragma pack(1)
typedef struct {
uint8_t flag1:1;
uint8_t flag2:1;
padding1 reserved:6; /* not necessary but makes this struct more readable */
uint32_t sequence_no;
uint8_t data[8];
uint32_t crc32;
} s_mypacket __attribute__((packed));
#pragma pack()
Which method you use depends on your compiler. You may also need to support several different compilers with the same header files. This happens in embedded systems where devices and servers can be completely different - for example you may have an ARM device that communicates with an x86 Linux server.
There are a few caveats with using packed structures. The biggest gotcha is that you must avoid dereferencing the address of a member. On systems with mutibyte aligned words, this can result in a misaligned exception - and a coredump.
Some folks will also worry about performance and argue that using these packed structures will slow down your system. It is true that, behind the scenes, the compiler adds code to access the unaligned data members. You can see that by looking at the assembly code in your IDE.
But since packed structures are most useful for communication and data storage then the data can be extracted into a non-packed representation when working with it in memory. Normally we do not need to be working with the entire data packet in memory anyway.
Here is some relevant discussion:
pragma pack(1) nor __attribute__ ((aligned (1))) works
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
http://solidsmoke.blogspot.ca/2010/07/woes-of-structure-packing-pragma-pack.html
By implementing the SpinnerAdapter for your adapter object i use interested.getItem(i).toString()
It depends what is the character and what encoding it is in:
An ASCII character in 8-bit ASCII encoding is 8 bits (1 byte), though it can fit in 7 bits.
An ISO-8895-1 character in ISO-8859-1 encoding is 8 bits (1 byte).
A Unicode character in UTF-8 encoding is between 8 bits (1 byte) and 32 bits (4 bytes).
A Unicode character in UTF-16 encoding is between 16 (2 bytes) and 32 bits (4 bytes), though most of the common characters take 16 bits. This is the encoding used by Windows internally.
A Unicode character in UTF-32 encoding is always 32 bits (4 bytes).
An ASCII character in UTF-8 is 8 bits (1 byte), and in UTF-16 - 16 bits.
The additional (non-ASCII) characters in ISO-8895-1 (0xA0-0xFF) would take 16 bits in UTF-8 and UTF-16.
That would mean that there are between 0.03125 and 0.125 characters in a bit.
adding this worked for me.
compile 'org.jbundle.util.osgi.wrapped:org.jbundle.util.osgi.wrapped.org.apache.http.client:4.1.2'
Your compound PRIMARY KEY
specification already does what you want. Omit the line that's giving you a syntax error, and omit the redundant CONSTRAINT
(already implied), too:
CREATE TABLE tags
(
question_id INTEGER NOT NULL,
tag_id SERIAL NOT NULL,
tag1 VARCHAR(20),
tag2 VARCHAR(20),
tag3 VARCHAR(20),
PRIMARY KEY(question_id, tag_id)
);
NOTICE: CREATE TABLE will create implicit sequence "tags_tag_id_seq" for serial column "tags.tag_id"
NOTICE: CREATE TABLE / PRIMARY KEY will create implicit index "tags_pkey" for table "tags"
CREATE TABLE
pg=> \d tags
Table "public.tags"
Column | Type | Modifiers
-------------+-----------------------+-------------------------------------------------------
question_id | integer | not null
tag_id | integer | not null default nextval('tags_tag_id_seq'::regclass)
tag1 | character varying(20) |
tag2 | character varying(20) |
tag3 | character varying(20) |
Indexes:
"tags_pkey" PRIMARY KEY, btree (question_id, tag_id)
bool pointInRectangle(Point A, Point B, Point C, Point D, Point m ) {
Point AB = vect2d(A, B); float C1 = -1 * (AB.y*A.x + AB.x*A.y); float D1 = (AB.y*m.x + AB.x*m.y) + C1;
Point AD = vect2d(A, D); float C2 = -1 * (AD.y*A.x + AD.x*A.y); float D2 = (AD.y*m.x + AD.x*m.y) + C2;
Point BC = vect2d(B, C); float C3 = -1 * (BC.y*B.x + BC.x*B.y); float D3 = (BC.y*m.x + BC.x*m.y) + C3;
Point CD = vect2d(C, D); float C4 = -1 * (CD.y*C.x + CD.x*C.y); float D4 = (CD.y*m.x + CD.x*m.y) + C4;
return 0 >= D1 && 0 >= D4 && 0 <= D2 && 0 >= D3;}
Point vect2d(Point p1, Point p2) {
Point temp;
temp.x = (p2.x - p1.x);
temp.y = -1 * (p2.y - p1.y);
return temp;}
I just implemented AnT's Answer using c++. I used this code to check whether the pixel's coordination(X,Y) lies inside the shape or not.
All I did was disconnect and reconnect my pc from the wifi and it worked. Sometimes the answer might be very simple. Mine works now
Use the bash built-in variable SECONDS
. Each time you reference the variable it will return the elapsed time since the script invocation.
Example:
echo "Start $SECONDS"
sleep 10
echo "Middle $SECONDS"
sleep 10
echo "End $SECONDS"
Output:
Start 0
Middle 10
End 20
All DDL statements in Oracle PL/SQL should use Execute Immediate before the statement. Hence you should use:
execute immediate 'truncate table schema.tablename';
What you are looking for is called Geocoding.
Google provides a Geocoding Web Service which should do what you're looking for. You will be able to do geocoding on your server.
JSON Example:
http://maps.google.com/maps/api/geocode/json?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA
XML Example:
http://maps.google.com/maps/api/geocode/xml?address=1600+Amphitheatre+Parkway,+Mountain+View,+CA
Edit:
Please note that this is now a deprecated method and you must provide your own Google API key to access this data.
As Andrie said, system.time()
works fine. For short function I prefer to put replicate()
in it:
system.time( replicate(10000, myfunction(with,arguments) ) )
If you want to set through xml using android's default color codes, then you need to do as below:
android:background="@android:color/white"
If you have colors specified in your project's colors.xml
, then use:
android:background="@color/white"
If you want to do programmatically, then do:
linearlayout.setBackgroundColor(Color.WHITE);
There is a command-line utility xcodebuild
and you can run shell command within xcode.
So, if you don't mind using custom script, this script may help you.
#Configurations.
#This script designed for Mac OS X command-line, so does not use Xcode build variables.
#But you can use it freely if you want.
TARGET=sns
ACTION="clean build"
FILE_NAME=libsns.a
DEVICE=iphoneos3.2
SIMULATOR=iphonesimulator3.2
#Build for all platforms/configurations.
xcodebuild -configuration Debug -target ${TARGET} -sdk ${DEVICE} ${ACTION} RUN_CLANG_STATIC_ANALYZER=NO
xcodebuild -configuration Debug -target ${TARGET} -sdk ${SIMULATOR} ${ACTION} RUN_CLANG_STATIC_ANALYZER=NO
xcodebuild -configuration Release -target ${TARGET} -sdk ${DEVICE} ${ACTION} RUN_CLANG_STATIC_ANALYZER=NO
xcodebuild -configuration Release -target ${TARGET} -sdk ${SIMULATOR} ${ACTION} RUN_CLANG_STATIC_ANALYZER=NO
#Merge all platform binaries as a fat binary for each configurations.
DEBUG_DEVICE_DIR=${SYMROOT}/Debug-iphoneos
DEBUG_SIMULATOR_DIR=${SYMROOT}/Debug-iphonesimulator
DEBUG_UNIVERSAL_DIR=${SYMROOT}/Debug-universal
RELEASE_DEVICE_DIR=${SYMROOT}/Release-iphoneos
RELEASE_SIMULATOR_DIR=${SYMROOT}/Release-iphonesimulator
RELEASE_UNIVERSAL_DIR=${SYMROOT}/Release-universal
rm -rf "${DEBUG_UNIVERSAL_DIR}"
rm -rf "${RELEASE_UNIVERSAL_DIR}"
mkdir "${DEBUG_UNIVERSAL_DIR}"
mkdir "${RELEASE_UNIVERSAL_DIR}"
lipo -create -output "${DEBUG_UNIVERSAL_DIR}/${FILE_NAME}" "${DEBUG_DEVICE_DIR}/${FILE_NAME}" "${DEBUG_SIMULATOR_DIR}/${FILE_NAME}"
lipo -create -output "${RELEASE_UNIVERSAL_DIR}/${FILE_NAME}" "${RELEASE_DEVICE_DIR}/${FILE_NAME}" "${RELEASE_SIMULATOR_DIR}/${FILE_NAME}"
Maybe looks inefficient(I'm not good at shell script), but easy to understand. I configured a new target running only this script. The script is designed for command-line but not tested in :)
The core concept is xcodebuild
and lipo
.
I tried many configurations within Xcode UI, but nothing worked. Because this is a kind of batch processing, so command-line design is more suitable, so Apple removed batch build feature from Xcode gradually. So I don't expect they offer UI based batch build feature in future.
Winston is strong choice for most of the developers. I have been using winston for long. Recently I used winston with with papertrail which takes the application logging to next level.
Here is a nice screenshot from their site.
How its useful
you can manage logs from different systems at one place. this can be very useful when you have two backend communicating and can see logs from both at on place.
Logs are live. you can see realtime logs of your production server.
Powerful search and filter
you can create alerts to send you email if it encounters specific text in log.
and you can find more http://help.papertrailapp.com/kb/how-it-works/event-viewer/
A simple configuration using winston
,winston-express
and winston-papertrail
node modules.
import winston from 'winston';
import expressWinston from 'express-winston';
//
// Requiring `winston-papertrail` will expose
// `winston.transports.Papertrail`
//
require('winston-papertrail').Papertrail;
// create winston transport for Papertrail
var winstonPapertrail = new winston.transports.Papertrail({
host: 'logsX.papertrailapp.com',
port: XXXXX
});
app.use(expressWinston.logger({
transports: [winstonPapertrail],
meta: true, // optional: control whether you want to log the meta data about the request (default to true)
msg: "HTTP {{req.method}} {{req.url}}", // optional: customize the default logging message. E.g. "{{res.statusCode}} {{req.method}} {{res.responseTime}}ms {{req.url}}"
expressFormat: true, // Use the default Express/morgan request formatting. Enabling this will override any msg if true. Will only output colors with colorize set to true
colorize: true, // Color the text and status code, using the Express/morgan color palette (text: gray, status: default green, 3XX cyan, 4XX yellow, 5XX red).
ignoreRoute: function (req, res) { return false; } // optional: allows to skip some log messages based on request and/or response
}));
How to disable submit button
just call a function on onclick event and... return true to submit and false to disable submit. OR call a function on window.onload like :
window.onload = init();
and in init() do something like this :
var theForm = document.getElementById(‘theForm’);
theForm.onsubmit = // what ever you want to do
If you guys are facing "Permission Denial: starting Intent..." error or if the app is getting crash without any reason during launching the app - Then use this single line code in Manifest
android:exported="true"
Please be careful with finish(); , if you missed out it the app getting frozen. if its mentioned the app would be a smooth launcher.
finish();
The other solution only works for two activities that are in the same application. In my case, application B doesn't know class com.example.MyExampleActivity.class
in the code, so compile will fail.
I searched on the web and found something like this below, and it works well.
Intent intent = new Intent();
intent.setComponent(new ComponentName("com.example", "com.example.MyExampleActivity"));
startActivity(intent);
You can also use the setClassName method:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.setClassName("com.hotfoot.rapid.adani.wheeler.android", "com.hotfoot.rapid.adani.wheeler.android.view.activities.MainActivity");
startActivity(intent);
finish();
You can also pass the values from one app to another app :
Intent launchIntent = getApplicationContext().getPackageManager().getLaunchIntentForPackage("com.hotfoot.rapid.adani.wheeler.android.LoginActivity");
if (launchIntent != null) {
launchIntent.putExtra("AppID", "MY-CHILD-APP1");
launchIntent.putExtra("UserID", "MY-APP");
launchIntent.putExtra("Password", "MY-PASSWORD");
startActivity(launchIntent);
finish();
} else {
Toast.makeText(getApplicationContext(), " launch Intent not available", Toast.LENGTH_SHORT).show();
}
Thank you all who contributed to this thread and helped me figure out how to test for numeric values. I wanted to post my results for how to handle negative numbers, for those who may also find this thread when searching...
Note: My function requires a string to be passed, due to using Trim().
function IsNumeric($value) {
# This function will test if a string value is numeric
#
# Parameters::
#
# $value - String to test
#
return ($($value.Trim()) -match "^[-]?[0-9.]+$")
}
In most regex implementations (including Java's), :
has no special meaning, neither inside nor outside a character class.
Your problem is most likely due to the fact the -
acts as a range operator in your class:
[A-Za-z0-9.,-:]*
where ,-:
matches all ascii characters between ','
and ':'
. Note that it still matches the literal ':'
however!
Try this instead:
[A-Za-z0-9.,:-]*
By placing -
at the start or the end of the class, it matches the literal "-"
. As mentioned in the comments by Keoki Zee, you can also escape the -
inside the class, but most people simply add it at the end.
A demo:
public class Test {
public static void main(String[] args) {
System.out.println("8:".matches("[,-:]+")); // true: '8' is in the range ','..':'
System.out.println("8:".matches("[,:-]+")); // false: '8' does not match ',' or ':' or '-'
System.out.println(",,-,:,:".matches("[,:-]+")); // true: all chars match ',' or ':' or '-'
}
}
You Can try this i am able to run single Test cases
phpunit tests/{testfilename}
Eg:
phpunit tests/StackoverflowTest.php
If you want to run single Test cases in Laravel 5.5 Try
vendor/bin/phpunit tests/Feature/{testfilename}
vendor/bin/phpunit tests/Unit/{testfilename}
Eg:
vendor/bin/phpunit tests/Feature/ContactpageTest.php
vendor/bin/phpunit tests/Unit/ContactpageTest.php
you can try with System.Web.Script.Serialization.JavaScriptSerializer
:
var json = new JavaScriptSerializer();
var data = json.Deserialize<Dictionary<string, Dictionary<string, string>>[]>(jsonStr);
If you are using terminal(ssh or something) and you want to keep a long-time script working after you log out from the terminal, you can try this:
screen
apt-get install screen
create a virtual terminal inside( namely abc): screen -dmS abc
now we connect to abc: screen -r abc
So, now we can run python script: python keep_sending_mails.py
from now on, you can directly close your terminal, however, the python script will keep running rather than being shut down
Since this
keep_sending_mails.py
's PID is a child process of the virtual screen rather than the terminal(ssh)
If you want to go back check your script running status, you can use screen -r abc
again
You have to add the FormHttpMessageConverter to your applicationContext.xml to be able to post multipart files.
<bean id="restTemplate" class="org.springframework.web.client.RestTemplate">
<property name="messageConverters">
<list>
<bean class="org.springframework.http.converter.StringHttpMessageConverter" />
<bean class="org.springframework.http.converter.FormHttpMessageConverter" />
</list>
</property>
</bean>
See http://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/http/converter/FormHttpMessageConverter.html for examples.
See Samples Environment for Microsoft Chart Controls:
The samples environment for Microsoft Chart Controls for .NET Framework contains over 200 samples for both ASP.NET and Windows Forms. The samples cover every major feature in Chart Controls for .NET Framework. They enable you to see the Chart controls in action as well as use the code as templates for your own web and windows applications.
Seems to be more business oriented, but may be of some value to science students and scientists.
I've decided to post my own answer here because I've lost a few hours on this and I think that, although the accepted answer is very good and pointed me in the right direction (yes, it got a voteup), it was not detailed enough to explain what was wrong with my application, at least in my case.
I'm running a BPEL module in OpenESB 2.2 and the Test Case of my Composite Application was failing with the following error:
Caused by: System.Web.Services.Protocols.SoapException: Server did not recognize the value of HTTP Header SOAPAction: .
After doing some research I've noticed that the external WSDL has all the clues we need to fix this problem, e.g., I'm using the following web service to validate a credit card number through a orchestration of Web Services: http://www.webservicex.net/CreditCard.asmx?WSDL
If you check the <wsdl:operation
elements you will see that it clearly states the soapAction
for that operation:
<wsdl:binding name="CCCheckerSoap" type="tns:CCCheckerSoap">
<soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="ValidateCardNumber">
<soap:operation soapAction="http://www.webservicex.net/ValidateCardNumber" style="document"/>
<wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
...
But, once you create the Composite Application and build the project with the BPEL that invokes this external WSDL service, for some reason (bug?), the XML of the Composite Application Service Assembly (CASA) binding is generated with an empty soapAction
parameter:
<binding name="casaBinding1" type="ns:CCCheckerSoap">
<soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
<operation name="ValidateCardNumber">
<soap:operation soapAction="" style="document"/>
<input>
<soap:body use="literal"/>
</input>
Once you copy the proper soapAction (http://www.webservicex.net/ValidateCardNumber) into this parameter, the application's Test Case will correctly and return the expected Soap response.
<soap:operation soapAction="http://www.webservicex.net/ValidateCardNumber" style="document"/>
So, it's a more specific solution that I decided to document based on the information found in this blog post: http://bluebones.net/2003/07/server-did-not-recognize-http-header-soapaction/.
It means (at least in my case) that you are accessing a web service with SOAP and passing a SOAPAction parameter in the HTTP request that does not match what the service is expecting.
If you want upload big size image or data in database. Just change the data type to 'BIG BLOB'
.
You're interested in the collation. You could build something based on this snippet:
SELECT DATABASEPROPERTYEX('master', 'Collation');
Update
Based on your edit — If @test
and @TEST
can ever refer to two different variables, it's not SQL Server. If you see problems where the same variable is not equal to itself, check if that variable is NULL
, because NULL = NULL
returns `false.
please modify your router.module.ts as:
const routes: Routes = [
{
path: '',
redirectTo: 'one',
pathMatch: 'full'
},
{
path: 'two',
component: ClassTwo, children: [
{
path: 'three',
component: ClassThree,
outlet: 'nameThree',
},
{
path: 'four',
component: ClassFour,
outlet: 'nameFour'
},
{
path: '',
redirectTo: 'two',
pathMatch: 'full'
}
]
},];
and in your component1.html
<h3>In One</h3>
<nav>
<a routerLink="/two" class="dash-item">...Go to Two...</a>
<a routerLink="/two/three" class="dash-item">... Go to THREE...</a>
<a routerLink="/two/four" class="dash-item">...Go to FOUR...</a>
</nav>
<router-outlet></router-outlet> // Successfully loaded component2.html
<router-outlet name="nameThree" ></router-outlet> // Error: Cannot match any routes. URL Segment: 'three'
<router-outlet name="nameFour" ></router-outlet> // Error: Cannot match any routes. URL Segment: 'three'
In Java 8:
String[] strings = list.parallelStream().toArray(String[]::new);
Updated 2018
For the original question based on Bootstrap 3, the solution was to use push-pull.
In Bootstrap 4 it's now possible to change the order, even when the columns are full-width stacked vertically, thanks to Bootstrap 4 flexbox. OFC, the push pull method will still work, but now there are other ways to change column order in Bootstrap 4, making it possible to re-order full-width columns.
Method 1 - Use flex-column-reverse
for xs
screens:
<div class="row flex-column-reverse flex-md-row">
<div class="col-md-3">
sidebar
</div>
<div class="col-md-9">
main
</div>
</div>
Method 2 - Use order-first
for xs
screens:
<div class="row">
<div class="col-md-3">
sidebar
</div>
<div class="col-md-9 order-first order-md-last">
main
</div>
</div>
Bootstrap 4(alpha 6): http://www.codeply.com/go/bBMOsvtJhD
Bootstrap 4.1: https://www.codeply.com/go/e0v77yGtcr
Original 3.x Answer
For the original question based on Bootstrap 3, the solution was to use push-pull for the larger widths, and then the columns will show is their natural order on smaller (xs) widths. (A-B reverse to B-A).
<div class="container">
<div class="row">
<div class="col-md-9 col-md-push-3">
main
</div>
<div class="col-md-3 col-md-pull-9">
sidebar
</div>
</div>
</div>
Bootstrap 3: http://www.codeply.com/go/wgzJXs3gel
@emre stated, "You cannot change the order of columns in smaller screens but you can do that in large screens". However, this should be clarified to state: "You cannot change the order of full-width "stacked" columns.." in Bootstrap 3.
An alternative is to use
mysqladmin variables
if your terminal emulator doesn't have -hold
you can sanitize a sourced script and hold the terminal with:
#!/bin/sh
sed "s/exit/return/g" script >/tmp/script
. /tmp/script
read
otherwise you can use $TERM -hold -e script
In simple terms, you just need to edit the .gitmodules file, then resync and update:
Edit the file, either via a git command or directly:
git config --file=.gitmodules -e
or just:
vim .gitmodules
then resync and update:
git submodule sync
git submodule update --init --recursive --remote
To align two divs horizontally you just have to combine two classes of Bootstrap: Here's how:
<div class ="container-fluid">
<div class ="row">
<div class ="col-md-6 col-sm-6">
First Div
</div>
<div class ="col-md-6 col-sm-6">
Second Div
</div>
</div>
</div>
It seems that RouteParams
no longer exists, and is replaced by ActivatedRoute
. ActivatedRoute
gives us access to the matrix URL notation Parameters. If we want to get Query string ?
paramaters we need to use Router.RouterState
. The traditional query string paramaters are persisted across routing, which may not be the desired result. Preserving the fragment is now optional in router 3.0.0-rc.1.
import { Router, ActivatedRoute } from '@angular/router';
@Component ({...})
export class paramaterDemo {
private queryParamaterValue: string;
private matrixParamaterValue: string;
private querySub: any;
private matrixSub: any;
constructor(private router: Router, private route: ActivatedRoute) { }
ngOnInit() {
this.router.routerState.snapshot.queryParams["queryParamaterName"];
this.querySub = this.router.routerState.queryParams.subscribe(queryParams =>
this.queryParamaterValue = queryParams["queryParameterName"];
);
this.route.snapshot.params["matrixParameterName"];
this.route.params.subscribe(matrixParams =>
this.matrixParamterValue = matrixParams["matrixParameterName"];
);
}
ngOnDestroy() {
if (this.querySub) {
this.querySub.unsubscribe();
}
if (this.matrixSub) {
this.matrixSub.unsubscribe();
}
}
}
We should be able to manipulate the ?
notation upon navigation, as well as the ;
notation, but I only gotten the matrix notation to work yet. The plnker that is attached to the latest router documentation shows it should look like this.
let sessionId = 123456789;
let navigationExtras = {
queryParams: { 'session_id': sessionId },
fragment: 'anchor'
};
// Navigate to the login page with extras
this.router.navigate(['/login'], navigationExtras);
I had the same problem, with data that only occasionally double-quotes some text. My solution is to let the BULK LOAD import the double-quotes, then run a REPLACE on the imported data.
For example:
bulk insert CodePoint_tbl from "F:\Data\Map\CodePointOpen\Data\CSV\ab.csv" with (FIRSTROW = 1, FIELDTERMINATOR = ',', ROWTERMINATOR='\n');
update CodePoint_tbl set Postcode = replace(Postcode,'"','') where charindex('"',Postcode) > 0
To make it less painful to write the REPLACE script, just copy and paste what you need from the results of something like this:
select C.ColID, C.[name] as Columnname into #Columns
from syscolumns C
join sysobjects T on C.id = T.id
where T.[name] = 'User_tbl'
order by 1;
declare @QUOTE char(1);
set @QUOTE = Char(39);
select 'Update User_tbl set '+ColumnName+'=replace('+ColumnName+','
+ @QUOTE + '"' + @QUOTE + ',' + @QUOTE + @QUOTE + ');
GO'
from #Columns
where ColID > 2
order by ColID;
The most easiest way would be to use unfactor
function from package varhandle which can accept a factor vector or even a dataframe:
unfactor(your_factor_variable)
This example can be a quick start:
x <- rep(c("a", "b", "c"), 20)
y <- rep(c(1, 1, 0), 20)
class(x) # -> "character"
class(y) # -> "numeric"
x <- factor(x)
y <- factor(y)
class(x) # -> "factor"
class(y) # -> "factor"
library(varhandle)
x <- unfactor(x)
y <- unfactor(y)
class(x) # -> "character"
class(y) # -> "numeric"
You can also use it on a dataframe. For example the iris
dataset:
sapply(iris, class)
Sepal.Length Sepal.Width Petal.Length Petal.Width Species "numeric" "numeric" "numeric" "numeric" "factor"
# load the package
library("varhandle")
# pass the iris to unfactor
tmp_iris <- unfactor(iris)
# check the classes of the columns
sapply(tmp_iris, class)
Sepal.Length Sepal.Width Petal.Length Petal.Width Species "numeric" "numeric" "numeric" "numeric" "character"
# check if the last column is correctly converted
tmp_iris$Species
[1] "setosa" "setosa" "setosa" "setosa" "setosa" [6] "setosa" "setosa" "setosa" "setosa" "setosa" [11] "setosa" "setosa" "setosa" "setosa" "setosa" [16] "setosa" "setosa" "setosa" "setosa" "setosa" [21] "setosa" "setosa" "setosa" "setosa" "setosa" [26] "setosa" "setosa" "setosa" "setosa" "setosa" [31] "setosa" "setosa" "setosa" "setosa" "setosa" [36] "setosa" "setosa" "setosa" "setosa" "setosa" [41] "setosa" "setosa" "setosa" "setosa" "setosa" [46] "setosa" "setosa" "setosa" "setosa" "setosa" [51] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [56] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [61] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [66] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [71] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [76] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [81] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [86] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [91] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [96] "versicolor" "versicolor" "versicolor" "versicolor" "versicolor" [101] "virginica" "virginica" "virginica" "virginica" "virginica" [106] "virginica" "virginica" "virginica" "virginica" "virginica" [111] "virginica" "virginica" "virginica" "virginica" "virginica" [116] "virginica" "virginica" "virginica" "virginica" "virginica" [121] "virginica" "virginica" "virginica" "virginica" "virginica" [126] "virginica" "virginica" "virginica" "virginica" "virginica" [131] "virginica" "virginica" "virginica" "virginica" "virginica" [136] "virginica" "virginica" "virginica" "virginica" "virginica" [141] "virginica" "virginica" "virginica" "virginica" "virginica" [146] "virginica" "virginica" "virginica" "virginica" "virginica"
The reject
actually takes one parameter: that's the exception that occurred in your code that caused the promise to be rejected. So, when you call reject()
the exception value is undefined
, hence the "undefined" part in the error that you get.
You do not show the code that uses the promise, but I reckon it is something like this:
var promise = doSth();
promise.then(function() { doSthHere(); });
Try adding an empty failure call, like this:
promise.then(function() { doSthHere(); }, function() {});
This will prevent the error to appear.
However, I would consider calling reject
only in case of an actual error, and also... having empty exception handlers isn't the best programming practice.
Also if you can set JVM timezone this way
System.setProperty("user.timezone", "EST");
or -Duser.timezone=GMT
in the JVM args.
private string name;
public string Name
{
get
{
if(name == null)
{
name = "Default Name";
}
return name;
}
set
{
name = value;
}
}
ToList
will always create a new list, which will not reflect any subsequent changes to the collection.
However, it will reflect changes to the objects themselves (Unless they're mutable structs).
In other words, if you replace an object in the original list with a different object, the ToList
will still contain the first object.
However, if you modify one of the objects in the original list, the ToList
will still contain the same (modified) object.
I know there are a lot of answers, but another solution could be to go with decorators. This is an example to repeat a function everyday at a specific time. The cool think about using this way is that you only need to add the Syntactic Sugar to the function you want to schedule:
@repeatEveryDay(hour=6, minutes=30)
def sayHello(name):
print(f"Hello {name}")
sayHello("Bob") # Now this function will be invoked every day at 6.30 a.m
And the decorator will look like:
def repeatEveryDay(hour, minutes=0, seconds=0):
"""
Decorator that will run the decorated function everyday at that hour, minutes and seconds.
:param hour: 0-24
:param minutes: 0-60 (Optional)
:param seconds: 0-60 (Optional)
"""
def decoratorRepeat(func):
@functools.wraps(func)
def wrapperRepeat(*args, **kwargs):
def getLocalTime():
return datetime.datetime.fromtimestamp(time.mktime(time.localtime()))
# Get the datetime of the first function call
td = datetime.timedelta(seconds=15)
if wrapperRepeat.nextSent == None:
now = getLocalTime()
wrapperRepeat.nextSent = datetime.datetime(now.year, now.month, now.day, hour, minutes, seconds)
if wrapperRepeat.nextSent < now:
wrapperRepeat.nextSent += td
# Waiting till next day
while getLocalTime() < wrapperRepeat.nextSent:
time.sleep(1)
# Call the function
func(*args, **kwargs)
# Get the datetime of the next function call
wrapperRepeat.nextSent += td
wrapperRepeat(*args, **kwargs)
wrapperRepeat.nextSent = None
return wrapperRepeat
return decoratorRepeat
None of the above answers (or any of the dozens of answers I saw elsewhere) worked for me when using brew with the most recent version of mysql and yosemite. I ended up installing a different mysql version via brew.
Specifying an older version by saying (for example)
brew install mysql56
Worked for me. Hope this helps someone. This was a frustrating problem that I felt like I was stuck on forever.
I have been using jQuery and calling a function to populate drop downs.
function loadDropDowns(name,value)
{
var ddl = "#Categories";
$(ddl).append('<option value="' + value + '">' + name + "</option>'");
}
You need to create a header with a proper formatted User agent String, it server to communicate client-server.
You can check your own user agent Here.
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0
Mozilla/5.0 (Macintosh; Intel Mac OS X x.y; rv:42.0) Gecko/20100101 Firefox/42.0
I found this module very simple to use, in one line of code it randomly generates a User agent string.
from user_agent import generate_user_agent, generate_navigator
from pprint import pprint
print(generate_user_agent())
# 'Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.3; Win64; x64)'
print(generate_user_agent(os=('mac', 'linux')))
# 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:36.0) Gecko/20100101 Firefox/36.0'
pprint(generate_navigator())
# {'app_code_name': 'Mozilla',
# 'app_name': 'Netscape',
# 'appversion': '5.0',
# 'name': 'firefox',
# 'os': 'linux',
# 'oscpu': 'Linux i686 on x86_64',
# 'platform': 'Linux i686 on x86_64',
# 'user_agent': 'Mozilla/5.0 (X11; Ubuntu; Linux i686 on x86_64; rv:41.0) Gecko/20100101 Firefox/41.0',
# 'version': '41.0'}
pprint(generate_navigator_js())
# {'appCodeName': 'Mozilla',
# 'appName': 'Netscape',
# 'appVersion': '38.0',
# 'platform': 'MacIntel',
# 'userAgent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:38.0) Gecko/20100101 Firefox/38.0'}
FormulaR1C1 has the same behavior as Formula, only using R1C1 style annotation, instead of A1 annotation. In A1 annotation you would use:
Worksheets("Sheet1").Range("A5").Formula = "=A4+A10"
In R1C1 you would use:
Worksheets("Sheet1").Range("A5").FormulaR1C1 = "=R4C1+R10C1"
It doesn't act upon row 1 column 1, it acts upon the targeted cell or range. Column 1 is the same as column A, so R4C1 is the same as A4, R5C2 is B5, and so forth.
The command does not change names, the targeted cell changes. For your R2C3 (also known as C2) example :
Worksheets("Sheet1").Range("C2").FormulaR1C1 = "=your formula here"
I think this is a bit better :
/**
* draws the view's content to a bitmap. code initially based on :
* http://nadavfima.com/android-snippet-inflate-a-layout-draw-to-a-bitmap/
*/
@Nullable
public static Bitmap drawToBitmap(final View viewToDrawFrom, int width, int height) {
boolean wasDrawingCacheEnabled = viewToDrawFrom.isDrawingCacheEnabled();
if (!wasDrawingCacheEnabled)
viewToDrawFrom.setDrawingCacheEnabled(true);
if (width <= 0 || height <= 0) {
if (viewToDrawFrom.getWidth() <= 0 || viewToDrawFrom.getHeight() <= 0) {
viewToDrawFrom.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
width = viewToDrawFrom.getMeasuredWidth();
height = viewToDrawFrom.getMeasuredHeight();
}
if (width <= 0 || height <= 0) {
final Bitmap bmp = viewToDrawFrom.getDrawingCache();
final Bitmap result = bmp == null ? null : Bitmap.createBitmap(bmp);
if (!wasDrawingCacheEnabled)
viewToDrawFrom.setDrawingCacheEnabled(false);
return result;
}
viewToDrawFrom.layout(0, 0, width, height);
} else {
viewToDrawFrom.measure(MeasureSpec.makeMeasureSpec(width, MeasureSpec.EXACTLY), MeasureSpec.makeMeasureSpec(height, MeasureSpec.EXACTLY));
viewToDrawFrom.layout(0, 0, viewToDrawFrom.getMeasuredWidth(), viewToDrawFrom.getMeasuredHeight());
}
final Bitmap drawingCache = viewToDrawFrom.getDrawingCache();
final Bitmap bmp = ThumbnailUtils.extractThumbnail(drawingCache, width, height);
final Bitmap result = bmp == null || bmp != drawingCache ? bmp : Bitmap.createBitmap(bmp);
if (!wasDrawingCacheEnabled)
viewToDrawFrom.setDrawingCacheEnabled(false);
return result;
}
Using the above code, you don't have to specify the size of the bitmap (use 0 for width&height) if you want to use the one of the view itself.
Also, if you wish to convert special views (SurfaceView, Surface or Window, for example) to a bitmap, you should consider using PixelCopy class instead. It requires API 24 and above though. I don't know how to do it before.
tightVNC 2.5.X and even pre 2.5 supports multi monitor. When you connect, you get a huge virtual monitor. However, this is also has disadvantages. UltaVNC (Tho when I tried it, was buggy in this area) allows you to connect to one huge virtual monitor or just to 1 screen at a time. (With a button to cycle through them) TightVNC also plan to support such a feature.. (When , no idea) This feature is important as if you have large multi monitors and connecting over a reasonably slow link.. The screen updates are just to slow.. Cutting down to one monitor to focus on is desirable.
I like tightVNC, but UltraVNC seems to have a few more features right now..
I have found tightVNC more solid. And that is why I have stuck with it.
I would try both. They both work well, but I imagine one would suite slightly more then the other.
Assume you got a file called file.txt that you want to read in a program and the content is this:
this is the content of the file
with open you can read it and
then with a loop you can print it
on the screen. Using enconding='utf-8'
you avoid some strange convertions of
caracters. With strip(), you avoid printing
an empty line between each (not empty) line
You can read this content: write the following script in notepad:
with open("file.txt", "r", encoding="utf-8") as file:
for line in file:
print(line.strip())
save it as readfile.py for example, in the same folder of the txt file.
Then you run it (shift + right click of the mouse and select the prompt from the contextual menu) writing in the prompt:
C:\examples> python readfile.py
You should get this. Play attention to the word, they have to be written just as you see them and to the indentation. It is important in python. Use always the same indentation in each file (4 spaces are good).
output
this is the content of the file
with open you can read it and
then with a loop you can print it
on the screen. Using enconding='utf-8'
you avoid some strange convertions of
caracters. With strip(), you avoid printing
an empty line between each (not empty) line
Swift 3
let secondviewController:UIViewController = self.storyboard?.instantiateViewController(withIdentifier: "StoryboardIdOfsecondviewController") as? SecondViewController
self.navigationController?.pushViewController(secondviewController, animated: true)
Abuse of the rules, same result: (x for x in 'Word to split')
Actually an iterator, not a list. But it's likely you won't really care.
Short answer: no. window.location.href
is not capable of passing POST data.
Somewhat more satisfying answer: You can use this function to clone all your form data and submit it.
var submitMe = document.createElement("form");
submitMe.action = "YOUR_URL_HERE"; // Remember to change me
submitMe.method = "post";
submitMe.enctype = "multipart/form-data";
var nameJoiner = "_";
// ^ The string used to join form name and input name
// so that you can differentiate between forms when
// processing the data server-side.
submitMe.importFields = function(form){
for(k in form.elements){
if(input = form.elements[k]){
if(input.type!="submit"&&
(input.nodeName=="INPUT"
||input.nodeName=="TEXTAREA"
||input.nodeName=="BUTTON"
||input.nodeName=="SELECT")
){
var output = input.cloneNode(true);
output.name = form.name + nameJoiner + input.name;
this.appendChild(output);
}
}
}
}
submitMe.importFields(form_element);
for each of the three forms you want to submit. <input name="email">
in <form name="login">
, the submitted name will be login_name
. nameJoiner
variable to something other than _
so it doesn't conflict with your input naming scheme.submitMe.submit();
I had the same problem and was able to use the following:
// Load the directory as a resource
URL dir_url = ClassLoader.getSystemResource(dir_path);
// Turn the resource into a File object
File dir = new File(dir_url.toURI());
// List the directory
String files = dir.list()
It sets result
to the (unsigned) value resulting from putting the 8 bits of value
in the lowest 8 bits of result
.
The reason something like this is necessary is that byte
is a signed type in Java. If you just wrote:
int result = value;
then result
would end up with the value ff ff ff fe
instead of 00 00 00 fe
. A further subtlety is that the &
is defined to operate only on int
values1, so what happens is:
value
is promoted to an int
(ff ff ff fe
).0xff
is an int
literal (00 00 00 ff
).&
is applied to yield the desired value for result
.(The point is that conversion to int
happens before the &
operator is applied.)
1Well, not quite. The &
operator works on long
values as well, if either operand is a long
. But not on byte
. See the Java Language Specification, sections 15.22.1 and 5.6.2.
alter table table_name change old_col_name new_col_name new_col_type;
Here is the example
hive> alter table test change userVisit userVisit2 STRING;
OK
Time taken: 0.26 seconds
hive> describe test;
OK
uservisit2 string
category string
uuid string
Time taken: 0.213 seconds, Fetched: 3 row(s)
I have started writing one tutorial for everyone on this topic, see making gadgets for Windows 7.
For your iphone You could use in your head balise :
"width=device-width"
Make sure you read SilverlightFox's answer. It highlights a more important reason.
The reason is mostly that if you know the source of a request you may want to customize it a little bit.
For instance lets say you have a website which has many recipes. And you use a custom jQuery framework to slide recipes into a container based on a link they click.
The link may be www.example.com/recipe/apple_pie
Now normally that returns a full page, header, footer, recipe content and ads. But if someone is browsing your website some of those parts are already loaded. So you can use an AJAX to get the recipe the user has selected but to save time and bandwidth don't load the header/footer/ads.
Now you can just write a secondary endpoint for the data like www.example.com/recipe_only/apple_pie
but that's harder to maintain and share to other people.
But it's easier to just detect that it is an ajax request making the request and then returning only a part of the data. That way the user wastes less bandwidth and the site appears more responsive.
The frameworks just add the header because some may find it useful to keep track of which requests are ajax and which are not. But it's entirely dependent on the developer to use such techniques.
It's actually kind of similar to the Accept-Language
header. A browser can request a website please show me a Russian version of this website without having to insert /ru/ or similar in the URL.
I created an insecure but simple text cipher/decipher util. No dependencies with any external library.
These are the functions
const cipher = salt => {
const textToChars = text => text.split('').map(c => c.charCodeAt(0));
const byteHex = n => ("0" + Number(n).toString(16)).substr(-2);
const applySaltToChar = code => textToChars(salt).reduce((a,b) => a ^ b, code);
return text => text.split('')
.map(textToChars)
.map(applySaltToChar)
.map(byteHex)
.join('');
}
const decipher = salt => {
const textToChars = text => text.split('').map(c => c.charCodeAt(0));
const applySaltToChar = code => textToChars(salt).reduce((a,b) => a ^ b, code);
return encoded => encoded.match(/.{1,2}/g)
.map(hex => parseInt(hex, 16))
.map(applySaltToChar)
.map(charCode => String.fromCharCode(charCode))
.join('');
}
And you can use them as follows:
// To create a cipher
const myCipher = cipher('mySecretSalt')
//Then cipher any text:
myCipher('the secret string') // --> "7c606d287b6d6b7a6d7c287b7c7a61666f"
//To decipher, you need to create a decipher and use it:
const myDecipher = decipher('mySecretSalt')
myDecipher("7c606d287b6d6b7a6d7c287b7c7a61666f") // --> 'the secret string'
Step 1 is always to first determine where the problem lies. Your title and most of your question seem to suggest that you're running into quite a low length limit on the length of a string in JavaScript / on browsers, an improbably low limit. You're not. Consider:
var str;
document.getElementById('theButton').onclick = function() {
var build, counter;
if (!str) {
str = "0123456789";
build = [];
for (counter = 0; counter < 900; ++counter) {
build.push(str);
}
str = build.join("");
}
else {
str += str;
}
display("str.length = " + str.length);
};
Repeatedly clicking the relevant button keeps making the string longer. With Chrome, Firefox, Opera, Safari, and IE, I've had no trouble with strings more than a million characters long:
str.length = 9000 str.length = 18000 str.length = 36000 str.length = 72000 str.length = 144000 str.length = 288000 str.length = 576000 str.length = 1152000 str.length = 2304000 str.length = 4608000 str.length = 9216000 str.length = 18432000
...and I'm quite sure I could got a lot higher than that.
So it's nothing to do with a length limit in JavaScript. You haven't show your code for sending the data to the server, but most likely you're using GET
which means you're running into the length limit of a GET request, because GET
parameters are put in the query string. Details here.
You need to switch to using POST
instead. In a POST
request, the data is in the body of the request rather than in the URL, and can be very, very large indeed.
I think the most important thing to keep in mind is: is the name descriptive enough? Can you tell by looking at the name what the Class is supposed to do? Using words like "Manager", "Service" or "Handler" in your class names can be considered too generic, but since a lot of programmers use them it also helps understanding what the class is for.
I myself have been using the facade-pattern a lot (at least, I think that's what it is called). I could have a User
class that describes just one user, and a Users
class that keeps track of my "collection of users". I don't call the class a UserManager
because I don't like managers in real-life and I don't want to be reminded of them :) Simply using the plural form helps me understand what the class does.
In eclipse help documentation, we can all icons information as follows. Common path for all eclipse versions except eclipse version:
for wav format below audio setting
NSDictionary *audioSetting = [NSDictionary dictionaryWithObjectsAndKeys:
[NSNumber numberWithFloat:44100.0],AVSampleRateKey,
[NSNumber numberWithInt:2],AVNumberOfChannelsKey,
[NSNumber numberWithInt:16],AVLinearPCMBitDepthKey,
[NSNumber numberWithInt:kAudioFormatLinearPCM],AVFormatIDKey,
[NSNumber numberWithBool:NO], AVLinearPCMIsFloatKey,
[NSNumber numberWithBool:0], AVLinearPCMIsBigEndianKey,
[NSNumber numberWithBool:NO], AVLinearPCMIsNonInterleaved,
[NSData data], AVChannelLayoutKey, nil];
ref: http://objective-audio.jp/2010/09/avassetreaderavassetwriter.html
You may use a local variable, like:
float[] values = new float[3];
float[] v = {0.1f, 0.2f, 0.3f};
float[] values = v;
Use NSMutableAttributedString.
NSMutableAttributedString * str = [[NSMutableAttributedString alloc] initWithString:@"Google"];
[str addAttribute: NSLinkAttributeName value: @"http://www.google.com" range: NSMakeRange(0, str.length)];
yourTextView.attributedText = str;
Edit:
This is not directly about the question but just to clarify, UITextField
and UILabel
does not support opening URLs. If you want to use UILabel
with links you can check TTTAttributedLabel.
Also you should set dataDetectorTypes
value of your UITextView
to UIDataDetectorTypeLink
or UIDataDetectorTypeAll
to open URLs when clicked. Or you can use delegate method as suggested in the comments.
Please check in your server specification again, if you have changed your port number to something else. And change the port number in your link whatever new port number it is.
Also check whether your server is running properly before you try accessing your localhost.
Use encodeURI()
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURI
Escapes pretty much all problematic characters in strings for proper JSON encoding and transit for use in web applications. It's not a perfect validation solution but it catches the low-hanging fruit.
Assuming you are on 10g, you can also use the MERGE statement. This allows you to insert the row if it doesn't exist and ignore the row if it does exist. People tend to think of MERGE when they want to do an "upsert" (INSERT if the row doesn't exist and UPDATE if the row does exist) but the UPDATE part is optional now so it can also be used here.
SQL> create table foo (
2 name varchar2(10) primary key,
3 age number
4 );
Table created.
SQL> ed
Wrote file afiedt.buf
1 merge into foo a
2 using (select 'johnny' name, null age from dual) b
3 on (a.name = b.name)
4 when not matched then
5 insert( name, age)
6* values( b.name, b.age)
SQL> /
1 row merged.
SQL> /
0 rows merged.
SQL> select * from foo;
NAME AGE
---------- ----------
johnny
To answer your extra question
:
You can set which rows should be repeated on every page using:
$objPHPExcel->getActiveSheet()->getPageSetup()->setRowsToRepeatAtTopByStartAndEnd(1, 5);
Now, row 1, 2, 3, 4 and 5 will be repeated.
Here is a great reference for HTML Ascii codes:
http://www.ascii.cl/htmlcodes.htm
The code you are looking for is: '
There's a much, much easier way. Do this:
MyComponent.vue
<template>
stuff here
</template>
<script>
import $ from 'jquery';
import 'selectize';
$(function() {
// use jquery
$('body').css('background-color', 'orange');
// use selectize, s jquery plugin
$('#myselect').selectize( options go here );
});
</script>
Make sure JQuery is installed first with npm install jquery
. Do the same with your plugin.
You can copy the files into an appropriately named subdirectory directory of the data folder as long as it is the EXACT same version of mySQL and you have retained all of the associated files in that directory. If you don't have all the files, I'm pretty sure you're going to have issues.
If you just want the INSERT queries, use the following:
mysqldump --skip-triggers --compact --no-create-info
0 Takes you to the beginning of the line
Shift 0 Takes you to the end of the line
First off, EC2 and Elastic Compute Cloud are the same thing.
Next, AWS encompasses the range of Web Services that includes EC2 and Elastic Beanstalk. It also includes many others such as S3, RDS, DynamoDB, and all the others.
EC2 is Amazon's service that allows you to create a server (AWS calls these instances) in the AWS cloud. You pay by the hour and only what you use. You can do whatever you want with this instance as well as launch n
number of instances.
Elastic Beanstalk is one layer of abstraction away from the EC2 layer. Elastic Beanstalk will setup an "environment" for you that can contain a number of EC2 instances, an optional database, as well as a few other AWS components such as a Elastic Load Balancer, Auto-Scaling Group, Security Group. Then Elastic Beanstalk will manage these items for you whenever you want to update your software running in AWS. Elastic Beanstalk doesn't add any cost on top of these resources that it creates for you. If you have 10 hours of EC2 usage, then all you pay is 10 compute hours.
For running Wordpress, it is whatever you are most comfortable with. You could run it straight on a single EC2 instance, you could use a solution from the AWS Marketplace, or you could use Elastic Beanstalk.
In the case that you want to reduce system operations and just focus on the website, then Elastic Beanstalk would be the best choice for that. Elastic Beanstalk supports a PHP stack (as well as others). You can keep your site in version control and easily deploy to your environment whenever you make changes. It will also setup an Autoscaling group which can spawn up more EC2 instances if traffic is growing.
Here's the first result off of Google when searching for "elastic beanstalk wordpress": https://www.otreva.com/blog/deploying-wordpress-amazon-web-services-aws-ec2-rds-via-elasticbeanstalk/
In Windows console (Linux, too), you should replace '\r'
with its equivalent code \033[0G
:
process.stdout.write('ok\033[0G');
This uses a VT220 terminal escape sequence to send the cursor to the first column.
Just add not-null constraint
I had the same problem. I just added not-null constraint in xml mapping. It worked
<set name="phone" cascade="all" lazy="false" >
<key column="id" not-null="true" />
<one-to-many class="com.practice.phone"/>
</set>
If it takes a long time to fail, then enlarge the wait_timeout
variable.
If it fails right away, enlarge the max_allowed_packet
variable; it it still doesn't work, make sure the command is valid SQL. Mine had unescaped quotes which screwed everything up.
Also, if feasible, consider limiting the number of inserts of a single SQL command to, say, 1000. You can create a script that creates multiple statements out of a single one by reintroducing the INSERT... part every n inserts.
I'm running Ubuntu, and as said above nobody:nobody does not work on Ubuntu. You get the error:
chown: invalid group: 'nobody:nobody'
Instead you should use the 'nogroup', like:
chown nobody:nogroup <dirname>
I need to run the Postgres database and created an alias for the purpose. The work through is provided below:
$ nano ~/.bash_profile
# in the bash_profile, insert the following texts:
alias pgst="pg_ctl -D /usr/local/var/postgres start"
alias pgsp="pg_ctl -D /usr/local/var/postgres stop"
$ source ~/.bash_profile
### This will start the Postgres server
$ pgst
### This will stop the Postgres server
$ pgsp
Here are couple quite optimal and compatible solutions:
USE master;
declare @min as int; set @min = 1000;
declare @max as int; set @max = 1050; --null returns all
-- Up to 256 - 2 048 rows depending on SQL Server version
select isnull(@min,0)+number.number as number
FROM dbo.spt_values AS number
WHERE number."type" = 'P' --integers
and ( @max is null --return all
or isnull(@min,0)+number.number <= @max --return up to max
)
order by number
;
-- Up to 65 536 - 4 194 303 rows depending on SQL Server version
select isnull(@min,0)+value1.number+(value2.number*numberCount.numbers) as number
FROM dbo.spt_values AS value1
cross join dbo.spt_values AS value2
cross join ( --get the number of numbers (depends on version)
select sum(1) as numbers
from dbo.spt_values
where spt_values."type" = 'P' --integers
) as numberCount
WHERE value1."type" = 'P' --integers
and value2."type" = 'P' --integers
and ( @max is null --return all
or isnull(@min,0)+value1.number+(value2.number*numberCount.numbers)
<= @max --return up to max
)
order by number
;
var yearStart = 2000;
var yearEnd = 2040;
var arr = [];
for (var i = yearStart; i <= yearEnd; i++) {
arr.push(i);
}
Modify to suit your specifics, or make more generic as needed:
Private Sub CopyItOver()
Set NewBook = Workbooks.Add
Workbooks("Whatever.xlsx").Worksheets("output").Range("A1:K10").Copy
NewBook.Worksheets("Sheet1").Range("A1").PasteSpecial (xlPasteValues)
NewBook.SaveAs FileName:=NewBook.Worksheets("Sheet1").Range("E3").Value
End Sub
// you need to have a list of data that you want the spinner to display
List<String> spinnerArray = new ArrayList<String>();
spinnerArray.add("item1");
spinnerArray.add("item2");
ArrayAdapter<String> adapter = new ArrayAdapter<String>(
this, android.R.layout.simple_spinner_item, spinnerArray);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
Spinner sItems = (Spinner) findViewById(R.id.spinner1);
sItems.setAdapter(adapter);
also to find out what is selected you could do something like this
String selected = sItems.getSelectedItem().toString();
if (selected.equals("what ever the option was")) {
}
I have a simpler solution for you:
window.onload = window.onresize = (event) => {
//Your Code Here
}
I've tested this an it works great, on the plus side it's compact and uncomplicated like the other examples here.
I ran into this issue in Eclipse on Mac OS X v10.9 (Mavericks). I tried many answers on Stack Overflow ... finally, after a full day I *installed a fresh version of the Android SDK (and updated Eclipse, menu Project ? Properties ? Android to use the new path)*.
I had to get SDK updates, but only pulling down those updates I thought were necessary, avoiding APIs I were not working with (like Wear and TV) .. and that did the trick. Apparently, it seems I had corrupted my SDK somewhere along the way.
BTW .. I did see the error re-surface with one project in my workspace, but it seemed related to an import of appcompat-7, which I was not using. After rm-ing that project, so far haven't seen the issue resurface.
The problem is that POST method is forbidden for Nginx server's static files requests. Here is the workaround:
# Pass 405 as 200 for requested address:
server {
listen 80;
server_name localhost;
location / {
root html;
index index.html index.htm;
}
error_page 404 /404.html;
error_page 403 /403.html;
error_page 405 =200 $uri;
}
If using proxy:
# If Nginx is like proxy for Apache:
error_page 405 =200 @405;
location @405 {
root /htdocs;
proxy_pass http://localhost:8080;
}
If using FastCGI:
location ~\.php(.*) {
fastcgi_pass 127.0.0.1:9000;
fastcgi_split_path_info ^(.+\.php)(.*)$;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_param PATH_INFO $fastcgi_path_info;
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
include /etc/nginx/fastcgi_params;
}
Browsers usually use GET, so you can use online tools like ApiTester to test your requests.
var b = String(stringInterpolationSegment: a)
This works for me. You may have a try
Adding a small variation to estani's excellent answer
Local to ISO 8601 with TimeZone and no microsecond info (Python 3):
import datetime, time
utc_offset_sec = time.altzone if time.localtime().tm_isdst else time.timezone
utc_offset = datetime.timedelta(seconds=-utc_offset_sec)
datetime.datetime.now().replace(microsecond=0, tzinfo=datetime.timezone(offset=utc_offset)).isoformat()
Sample Output:
'2019-11-06T12:12:06-08:00'
Tested that this output can be parsed by both Javascript Date
and C# DateTime
/DateTimeOffset
You can do this with php if the button opens a new page.
For example if the button link to a page named pagename.php as, url: www.website.com/pagename.php the button will stay red as long as you stay on that page.
I exploded the url by '/' an got something like:
url[0] = pagename.php
<? $url = explode('/', substr($_SERVER['REQUEST_URI'], strpos('/',$_SERVER['REQUEST_URI'] )+1,strlen($_SERVER['REQUEST_URI']))); ?>
<html>
<head>
<style>
.btn{
background:white;
}
.btn:hover,
.btn-on{
background:red;
}
</style>
</head>
<body>
<a href="/pagename.php" class="btn <? if (url[0]='pagename.php') {echo 'btn-on';} ?>">Click Me</a>
</body>
</html>
note: I didn't try this code. It might need adjustments.
To write an equivalent method using iteration, we must explicitly use a stack. The fact that the iterative version requires a stack for its solution indicates that the problem is difficult enough that it can benefit from recursion. As a general rule, recursion is most suitable for problems that cannot be solved with a fixed amount of memory and consequently require a stack when solved iteratively. Having said that, recursion and iteration can show the same outcome while they follow different pattern.To decide which method works better is case by case and best practice is to choose based on the pattern that problem follows.
For example, to find the nth triangular number of Triangular sequence: 1 3 6 10 15 … A program that uses an iterative algorithm to find the n th triangular number:
Using an iterative algorithm:
//Triangular.java
import java.util.*;
class Triangular {
public static int iterativeTriangular(int n) {
int sum = 0;
for (int i = 1; i <= n; i ++)
sum += i;
return sum;
}
public static void main(String args[]) {
Scanner stdin = new Scanner(System.in);
System.out.print("Please enter a number: ");
int n = stdin.nextInt();
System.out.println("The " + n + "-th triangular number is: " +
iterativeTriangular(n));
}
}//enter code here
Using a recursive algorithm:
//Triangular.java
import java.util.*;
class Triangular {
public static int recursiveTriangular(int n) {
if (n == 1)
return 1;
return recursiveTriangular(n-1) + n;
}
public static void main(String args[]) {
Scanner stdin = new Scanner(System.in);
System.out.print("Please enter a number: ");
int n = stdin.nextInt();
System.out.println("The " + n + "-th triangular number is: " +
recursiveTriangular(n));
}
}
You can try
git log --oneline | wc -l
or to list all the commits done by the people contributing in the repository
git shortlog -s
For SQL Server it should be something like
ALTER TABLE one
ADD two_id integer constraint fk foreign key references two(id)
Some IDEs highlight the code in heredoc strings automatically - which makes using heredoc for XML or HTML visually appealing.
I personally like it for longer parts of i.e. XML since I don't have to care about quoting quote characters and can simply paste the XML.
You have to enable curl with php.
Here is the instructions for same
Your Make file will have one or two dependency rules depending on whether you compile and link with a single command, or with one command for the compile and one for the link.
Dependency are a tree of rules that look like this (note that the indent must be a TAB):
main_target : source1 source2 etc
command to build main_target from sources
source1 : dependents for source1
command to build source1
There must be a blank line after the commands for a target, and there must not be a blank line before the commands. The first target in the makefile is the overall goal, and other targets are built only if the first target depends on them.
So your makefile will look something like this.
a3a.exe : a3driver.obj
link /out:a3a.exe a3driver.obj
a3driver.obj : a3driver.cpp
cc a3driver.cpp
Use:
document.getElementById("resultFrame").contentWindow.Reset();
to access the Reset function in the iframe
document.getElementById("resultFrame")
will get the iframe in your code, and contentWindow
will get the window object in the iframe. Once you have the child window, you can refer to javascript in that context.
Also see HERE in particular the answer from bobince.
If you only have two choices to select from:
df['color'] = np.where(df['Set']=='Z', 'green', 'red')
For example,
import pandas as pd
import numpy as np
df = pd.DataFrame({'Type':list('ABBC'), 'Set':list('ZZXY')})
df['color'] = np.where(df['Set']=='Z', 'green', 'red')
print(df)
yields
Set Type color
0 Z A green
1 Z B green
2 X B red
3 Y C red
If you have more than two conditions then use np.select
. For example, if you want color
to be
yellow
when (df['Set'] == 'Z') & (df['Type'] == 'A')
blue
when (df['Set'] == 'Z') & (df['Type'] == 'B')
purple
when (df['Type'] == 'B')
black
,then use
df = pd.DataFrame({'Type':list('ABBC'), 'Set':list('ZZXY')})
conditions = [
(df['Set'] == 'Z') & (df['Type'] == 'A'),
(df['Set'] == 'Z') & (df['Type'] == 'B'),
(df['Type'] == 'B')]
choices = ['yellow', 'blue', 'purple']
df['color'] = np.select(conditions, choices, default='black')
print(df)
which yields
Set Type color
0 Z A yellow
1 Z B blue
2 X B purple
3 Y C black
Change to MyISAM engine and run this command
REPAIR TABLE tbl_name USE_FRM;
String inputstr = "abcd: efg: 1006746"
int startindex = inputstr.length() - 10;
String outputtendigitstr = inputstr.substring(startindex);
Make sure you check string length is more than 10.
This type of thing should be done server-side, so as to limit the amount of resources used on the client for such trivial tasks. That being said, if you were to do it on the front-end, I would encourage you to consider using something like underscore.js to keep the code clean and concise:
var values = ["Red", "Green"],
colors = document.getElementById("colors");
_.each(colors.options, function (option) {
option.selected = ~_.indexOf(values, option.text);
});
If you're using jQuery, it could be even more terse:
var values = ["Red", "Green"];
$("#colors option").prop("selected", function () {
return ~$.inArray(this.text, values);
});
If you were to do this without a tool like underscore.js or jQuery, you would have a bit more to write, and may find it to be a bit more complicated:
var color, i, j,
values = ["Red", "Green"],
options = document.getElementById("colors").options;
for ( i = 0; i < values.length; i++ ) {
for ( j = 0, color = values[i]; j < options.length; j++ ) {
options[j].selected = options[j].selected || color === options[j].text;
}
}
The essential idea here is to select the data you want to sum, and then sum them. This selection of data can be done in several different ways, a few of which are shown below.
Arguably the most common way to select the values is to use Boolean indexing.
With this method, you find out where column 'a' is equal to 1
and then sum the corresponding rows of column 'b'. You can use loc
to handle the indexing of rows and columns:
>>> df.loc[df['a'] == 1, 'b'].sum()
15
The Boolean indexing can be extended to other columns. For example if df
also contained a column 'c' and we wanted to sum the rows in 'b' where 'a' was 1 and 'c' was 2, we'd write:
df.loc[(df['a'] == 1) & (df['c'] == 2), 'b'].sum()
Another way to select the data is to use query
to filter the rows you're interested in, select column 'b' and then sum:
>>> df.query("a == 1")['b'].sum()
15
Again, the method can be extended to make more complicated selections of the data:
df.query("a == 1 and c == 2")['b'].sum()
Note this is a little more concise than the Boolean indexing approach.
The alternative approach is to use groupby
to split the DataFrame into parts according to the value in column 'a'. You can then sum each part and pull out the value that the 1s added up to:
>>> df.groupby('a')['b'].sum()[1]
15
This approach is likely to be slower than using Boolean indexing, but it is useful if you want check the sums for other values in column a
:
>>> df.groupby('a')['b'].sum()
a
1 15
2 8
try this
SELECT CURTIME();
return 23:12:58
SELECT CURDATE();
return 2020-11-12
SELECT NOW();
return 2020-11-12 23:19:26
SELECT DAY(now());
return 12
SELECT DAYNAME(now());
return Thursday
Hope this would be helpful for you.
The correct way for checking the visibility of an element with Protractor is to call the isDisplayed
method. You should be careful though since isDisplayed
does not return a boolean, but rather a promise
providing the evaluated visibility. I've seen lots of code examples that use this method wrongly and therefore don't evaluate its actual visibility.
Example for getting the visibility of an element:
element(by.className('your-class-name')).isDisplayed().then(function (isVisible) {
if (isVisible) {
// element is visible
} else {
// element is not visible
}
});
However, you don't need this if you are just checking the visibility of the element (as opposed to getting it) because protractor patches Jasmine expect() so it always waits for promises to be resolved. See github.com/angular/jasminewd
So you can just do:
expect(element(by.className('your-class-name')).isDisplayed()).toBeTruthy();
Since you're using AngularJS
to control the visibility of that element, you could also check its class attribute for ng-hide
like this:
var spinner = element.by.css('i.icon-spin');
expect(spinner.getAttribute('class')).not.toMatch('ng-hide'); // expect element to be visible
If you want to know if any activity of your app is visible on the screen, you can do something like this:
public class MyAppActivityCallbacks implements Application.ActivityLifecycleCallbacks {
private Set<Class<Activity>> visibleActivities = new HashSet<>();
@Override
public void onActivityResumed(Activity activity) {
visibleActivities.add((Class<Activity>) activity.getClass());
}
@Override
public void onActivityStopped(Activity activity) {
visibleActivities.remove(activity.getClass());
}
public boolean isAnyActivityVisible() {
return !visibleActivities.isEmpty();
}
@Override
public void onActivityCreated(Activity activity, Bundle savedInstanceState) {}
@Override
public void onActivityStarted(Activity activity) {}
@Override
public void onActivityPaused(Activity activity) {}
@Override
public void onActivityDestroyed(Activity activity) {}
@Override
public void onActivitySaveInstanceState(Activity activity, Bundle outState) {}}
Just create a singleton of this class and set it in your Application instance like below:
class App extends Application{
@Override
public void onCreate() {
registerActivityLifecycleCallbacks(myAppActivityCallbacks);
}
}
Then you can use isAnyActivityVisible() method of your MyAppActivityCallbacks instance everywhere!
The code to compress/decompress a string
public static void CopyTo(Stream src, Stream dest) {
byte[] bytes = new byte[4096];
int cnt;
while ((cnt = src.Read(bytes, 0, bytes.Length)) != 0) {
dest.Write(bytes, 0, cnt);
}
}
public static byte[] Zip(string str) {
var bytes = Encoding.UTF8.GetBytes(str);
using (var msi = new MemoryStream(bytes))
using (var mso = new MemoryStream()) {
using (var gs = new GZipStream(mso, CompressionMode.Compress)) {
//msi.CopyTo(gs);
CopyTo(msi, gs);
}
return mso.ToArray();
}
}
public static string Unzip(byte[] bytes) {
using (var msi = new MemoryStream(bytes))
using (var mso = new MemoryStream()) {
using (var gs = new GZipStream(msi, CompressionMode.Decompress)) {
//gs.CopyTo(mso);
CopyTo(gs, mso);
}
return Encoding.UTF8.GetString(mso.ToArray());
}
}
static void Main(string[] args) {
byte[] r1 = Zip("StringStringStringStringStringStringStringStringStringStringStringStringStringString");
string r2 = Unzip(r1);
}
Remember that Zip
returns a byte[]
, while Unzip
returns a string
. If you want a string from Zip
you can Base64 encode it (for example by using Convert.ToBase64String(r1)
) (the result of Zip
is VERY binary! It isn't something you can print to the screen or write directly in an XML)
The version suggested is for .NET 2.0, for .NET 4.0 use the MemoryStream.CopyTo
.
IMPORTANT: The compressed contents cannot be written to the output stream until the GZipStream
knows that it has all of the input (i.e., to effectively compress it needs all of the data). You need to make sure that you Dispose()
of the GZipStream
before inspecting the output stream (e.g., mso.ToArray()
). This is done with the using() { }
block above. Note that the GZipStream
is the innermost block and the contents are accessed outside of it. The same goes for decompressing: Dispose()
of the GZipStream
before attempting to access the data.
Yes, by adding an extra wrapping element. Assign the desired line-through color to an outer element, then the desired text color to the inner element. For example:
<span style='color:red;text-decoration:line-through'>_x000D_
<span style='color:black'>black with red strikethrough</span>_x000D_
</span>
_x000D_
...or...
<strike style='color:red'>_x000D_
<span style='color:black'>black with red strikethrough<span>_x000D_
</strike>
_x000D_
(Note, however, that <strike>
is considered deprecated in HTML4 and obsolete in HTML5 (see also W3.org). The recommended approach is to use <del>
if a true meaning of deletion is intended, or otherwise to use an <s>
element or style with text-decoration
CSS as in the first example here.)
To make the strikethrough appear for a:hover, an explicit stylesheet (declared or referenced in <HEAD>
) must be used. (The :hover
pseudo-class can't be applied with inline STYLE attributes.) For example:
<head>_x000D_
<style>_x000D_
a.redStrikeHover:hover {_x000D_
color:red;_x000D_
text-decoration:line-through;_x000D_
}_x000D_
</style>_x000D_
</head>_x000D_
<body>_x000D_
<a href='#' class='redStrikeHover'>_x000D_
<span style='color:black'>hover me</span>_x000D_
</a>_x000D_
</body>
_x000D_
href
be set on the <a>
before :hover
has an effect; FF and WebKit-based browsers do not.)
TEXT is a data-type for text based input. On the other hand, you have BLOB and CLOB which are more suitable for data storage (images, etc) due to their larger capacity limits (4GB for example).
As for the difference between BLOB and CLOB, I believe CLOB has character encoding associated with it, which implies it can be suited well for very large amounts of text.
BLOB and CLOB data can take a long time to retrieve, relative to how quick data from a TEXT field can be retrieved. So, use only what you need.
I have come across articles that state that SELECT COUNT(*) FROM TABLE_NAME will be slow when the table has lots of rows and lots of columns.
That depends on the database. Some speed up counts, for instance by keeping track of whether rows are live or dead in the index, allowing for an index only scan to extract the number of rows. Others do not, and consequently require visiting the whole table and counting live rows one by one. Either will be slow for a huge table.
Note that you can generally extract a good estimate by using query optimization tools, table statistics, etc. In the case of PostgreSQL, for instance, you could parse the output of explain count(*) from yourtable
and get a reasonably good estimate of the number of rows. Which brings me to your second question.
I have a table that might contain even billions of rows [it has approximately 15 columns]. Is there a better way to get the EXACT count of the number of rows of a table?
Seriously? :-) You really mean the exact count from a table with billions of rows? Are you really sure? :-)
If you really do, you could keep a trace of the total using triggers, but mind concurrency and deadlocks if you do.
You have defined 5 fields in your control file. Your fields are terminated by a comma, so you need 5 commas in each record for the 5 fields unless TRAILING NULLCOLS is specified, even though you are loading the ID field with a sequence value via the SQL String.
RE: Comment by OP
That's not my experience with a brief test. With the following control file:
load data
infile *
into table T_new
fields terminated by "," optionally enclosed by '"'
( A,
B,
C,
D,
ID "ID_SEQ.NEXTVAL"
)
BEGINDATA
1,1,,,
2,2,2,,
3,3,3,3,
4,4,4,4,,
,,,,,
Produced the following output:
Table T_NEW, loaded from every logical record.
Insert option in effect for this table: INSERT
Column Name Position Len Term Encl Datatype
------------------------------ ---------- ----- ---- ---- ---------------------
A FIRST * , O(") CHARACTER
B NEXT * , O(") CHARACTER
C NEXT * , O(") CHARACTER
D NEXT * , O(") CHARACTER
ID NEXT * , O(") CHARACTER
SQL string for column : "ID_SEQ.NEXTVAL"
Record 1: Rejected - Error on table T_NEW, column ID.
Column not found before end of logical record (use TRAILING NULLCOLS)
Record 2: Rejected - Error on table T_NEW, column ID.
Column not found before end of logical record (use TRAILING NULLCOLS)
Record 3: Rejected - Error on table T_NEW, column ID.
Column not found before end of logical record (use TRAILING NULLCOLS)
Record 5: Discarded - all columns null.
Table T_NEW:
1 Row successfully loaded.
3 Rows not loaded due to data errors.
0 Rows not loaded because all WHEN clauses were failed.
1 Row not loaded because all fields were null.
Note that the only row that loaded correctly had 5 commas. Even the 3rd row, with all data values present except ID, the data does not load. Unless I'm missing something...
I'm using 10gR2.
I'm pretty sure it's an Adobe standard, bearing in mind the whole PDF standard is theirs to begin with; despite being open now.
My guess would be no for all PDF viewers supporting it, as some definitely will not have a JS engine. I doubt you can rely on full support outside the most recent versions of Acrobat (Reader). So I guess it depends on how you imagine it being used, if mainly via a browser display, then the majority of the market is catered for by Acrobat (Reader) and Chrome's built-in viewer - dare say there is documentation on whether Chrome's PDF viewer supports JS fully.
I just wanted to add and give some more context on why we have these levels of test, what they really mean with examples
Mike Cohn in his book “Succeeding with Agile” came up with the “Testing Pyramid” as a way to approach automated tests in projects. There are various interpretations of this model. The model explains what kind of automated tests need to be created, how fast they can give feedback on the application under test and who writes these tests. There are basically 3 levels of automated testing needed for any project and they are as follows.
Unit Tests- These test the smallest component of your software application. This could literally be one function in a code which computes a value based on some inputs. This function is part of several other functions of the hardware/software codebase that makes up the application.
For example - Let’s take a web based calculator application. The smallest components of this application that needs to be unit tested could be a function that performs addition, another that performs subtraction and so on. All these small functions put together makes up the calculator application.
Historically developer writes these tests as they are usually written in the same programming language as the software application. Unit testing frameworks such as JUnit and NUnit (for java), MSTest (for C# and .NET) and Jasmine/Mocha (for JavaScript) are used for this purpose.
The biggest advantage of unit tests are, they run really fast underneath the UI and we can get quick feedback about the application. This should comprise more than 50% of your automated tests.
API/Integration Tests- These test various components of the software system together. The components could include testing databases, API’s (Application Programming Interface), 3rd party tools and services along with the application.
For example - In our calculator example above, the web application may use a database to store values, use API’s to do some server side validations and it may use a 3rd party tool/service to publish results to the cloud to make it available across different platforms.
Historically a developer or technical QA would write these tests using various tools such as Postman, SoapUI, JMeter and other tools like Testim.
These run much faster than UI tests as they still run underneath the hood but may consume a little more time than unit tests as it has to check the communication between various independent components of the system and ensure they have seamless integration. This should comprise more that 30% of the automated tests.
UI Tests- Finally, we have tests that validate the UI of the application. These tests are usually written to test end to end flows through the application.
For example - In the calculator application, an end to end flow could be, opening up the browser-> Entering the calculator application url -> Logging in with username/password -> Opening up the calculator application -> Performing some operations on the calculator -> verifying those results from the UI -> Logging out of the application. This could be one end to end flow that would be a good candidate for UI automation.
Historically, technical QA’s or manual testers write UI tests. They use open source frameworks like Selenium or UI testing platforms like Testim to author, execute and maintain the tests. These tests give more visual feedback as you can see how the tests are running, the difference between the expected and actual results through screenshots, logs, test reports.
The biggest limitation of UI tests is, they are relatively slow compared to Unit and API level tests. So, it should comprise only 10-20% of the overall automated tests.
The next two types of tests can vary based on your project but the idea is-
Smoke Tests
This can be a combination of the above 3 levels of testing. The idea is to run it during every code check in and ensure the critical functionalities of the system are still working as expected; after the new code changes are merged. They typically need to run with 5 - 10 mins to get faster feedback on failures
Regression Tests
They usually are run once a day at least and cover various functionalities of the system. They ensure the application is still working as expected. They are more details than the smoke tests and cover more scenarios of the application including the non-critical ones.
There's tonnes of them on regexlib
I've just spent a happy 30 minutes with this. I'd renamed the entities object, renamed the entry in the config file, but there's more ... you have to change the reference to the csdl as well
very easy to miss - if you're renaming, make sure you get everything ....
You have to put a g
at the end, it stands for "global":
echo dog dog dos | sed -r 's:dog:log:g'
^
String result = objectMapper.writeValueAsString(map)
- as simple as this!
Result:
{"2019-07-04T03:00":1,"2019-07-04T04:00":1,"2019-07-04T01:00":1,"2019-07-04T02:00":1,"2019-07-04T13:00":1,"2019-07-04T06:00":1 ...}
P.S. add Jackson JSON to your classpath.
There's a niche case where git mv
remains very useful: when you want to change the casing of a file name on a case-insensitive file system. Both APFS (mac) and NTFS (windows) are, by default, case-insensitive (but case-preserving).
greg.kindel mentions this in a comment on CB Bailey's answer.
Suppose you are working on a mac and have a file Mytest.txt
managed by git. You want to change the file name to MyTest.txt
.
You could try:
$ mv Mytest.txt MyTest.txt
overwrite MyTest.txt? (y/n [n]) y
$ git status
On branch master
Your branch is up to date with 'origin/master'.
nothing to commit, working tree clean
Oh dear. Git doesn't acknowledge there's been any change to the file.
You could work around this with by renaming the file completely then renaming it back:
$ mv Mytest.txt temp.txt
$ git rm Mytest.txt
rm 'Mytest.txt'
$ mv temp.txt MyTest.txt
$ git add MyTest.txt
$ git status
On branch master
Your branch is up to date with 'origin/master'.
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
renamed: Mytest.txt -> MyTest.txt
Hurray!
Or you could save yourself all that bother by using git mv
:
$ git mv Mytest.txt MyTest.txt
$ git status
On branch master
Your branch is up to date with 'origin/master'.
Changes to be committed:
(use "git reset HEAD <file>..." to unstage)
renamed: Mytest.txt -> MyTest.txt
N=np.floor(np.divide(l,delta))
...
for j in range(N[i]/2):
N[i]/2
will be a float64
but range()
expects an integer. Just cast the call to
for j in range(int(N[i]/2)):
You can specify how to initialize members in the member initializer list:
BigMommaClass {
BigMommaClass(int, int);
private:
ThingOne thingOne;
ThingTwo thingTwo;
};
BigMommaClass::BigMommaClass(int numba1, int numba2)
: thingOne(numba1 + numba2), thingTwo(numba1, numba2) {}
Assuming StartDate
and EndDate
are of type DateTime
:
(EndDate - StartDate).TotalDays
You shouldn't edit any code manually jetify should do this job for you, if you are running/building from cli using react-native
you dont' need to do anything but if you are running/building Andriod studio you need to run jetify as pre-build, here is how can you automate this:
1- From the above menu go to edit configurations:
2- Add the bottom of the screen you will find before launch click on the plus and choose Run External Tool
2- Fill the following information, note that the working directory is your project root directory (not the android directory):
3- Make sure this run before anything else, in the end, your configuration should look something like this:
With bootstrap 4 you can simply try justify-content-md-center
as it is mentioned here
<div class="container">
<div class="row justify-content-md-center">
<div class="col col-lg-2">
1 of 3
</div>
<div class="col-md-auto">
Variable width content
</div>
<div class="col col-lg-2">
3 of 3
</div>
</div>
<div class="row">
<div class="col">
1 of 3
</div>
<div class="col-md-auto">
Variable width content
</div>
<div class="col col-lg-2">
3 of 3
</div>
</div>
</div>
'O' stands for object.
#Loading a csv file as a dataframe
import pandas as pd
train_df = pd.read_csv('train.csv')
col_name = 'Name of Employee'
#Checking the datatype of column name
train_df[col_name].dtype
#Instead try printing the same thing
print train_df[col_name].dtype
The first line returns: dtype('O')
The line with the print statement returns the following: object
First, if item value has double quote character ("), replace with 2 double quote character ("")
item = item.ToString().Replace("""", """""")
Finally, wrap item value:
ON LEFT: With double quote character (")
ON RIGHT: With double quote character (") and comma character (,)
csv += """" & item.ToString() & ""","
TextView gravity works as per your parent layout.
LinearLayout:
If you use LinearLayout then you will find two gravity attribute android:gravity & android:layout_gravity
android:gravity : represent layout potion of internal text of TextView while android:layout_gravity : represent TextView position in parent view.
If you want to set text horizontally & vertically center then use below code this
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="300dp"
android:background="@android:color/background_light"
android:layout_height="300dp">
<TextView
android:layout_width="match_parent"
android:text="Hello World!"
android:gravity="center_horizontal"
android:layout_gravity="center_vertical"
android:layout_height="wrap_content"
/>
</LinearLayout>
RelativeLayout:
Using RelativeLayout you can use below property in TextView
android:gravity="center" for text center in TextView.
android:gravity="center_horizontal" inner text if you want horizontally centered.
android:gravity="center_vertical" inner text if you want vertically centered.
android:layout_centerInParent="true" if you want TextView in center position of parent view. android:layout_centerHorizontal="true" if you want TextView in horizontally center of parent view. android:layout_centerVertical="true" if you want TextView in vertically center of parent view.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="300dp"
android:background="@android:color/background_light"
android:layout_height="300dp">
<TextView
android:layout_width="match_parent"
android:text="Hello World!"
android:gravity="center"
android:layout_centerInParent="true"
android:layout_height="wrap_content"
/>
</RelativeLayout>
problem in %time:~0,2%
can't set to 24 hrs format, ended with space(1-9), instead of 0(1-9)
go around with:
set HR=%time:~0,2%
set HR=%Hr: =0% (replace space with 0 if any <has a space in between : =0>)
then replace %time:~0,2%
with %HR%
good luck
if you use the resource the Colors.xml
int[] colors = new int[] {
getResources().getColor(R.color.ColorVerificaLunes),
getResources().getColor(R.color.ColorVerificaMartes),
getResources().getColor(R.color.ColorVerificaMiercoles),
getResources().getColor(R.color.ColorVerificaJueves),
getResources().getColor(R.color.ColorVerificaViernes)
};
ColorStateList csl = new ColorStateList(new int[][]{new int[0]}, new int[]{colors[0]});
example.setBackgroundTintList(csl);
Just run a git fetch
command. It will pull all the remote branches to your local repository, and then do a git branch -a
to list all the branches.
Had the same issue. For me it was that i loaded jquery twice in this order:
When jQuery was loaded the second time it somehow broke the references to bootstrap and the modal opened but the on('shown.bs..') method never fired.
I iterate like this and it works for me.
for (let [k, v] of myMap) {
console.log("Key: " + k);
console.log("Value: " + v);
}
Hope this helps :)
In Python string literals, backslash is an escape character. This is also true when the interactive prompt shows you the value of a string. It will give you the literal code representation of the string. Use the print
statement to see what the string actually looks like.
This example shows the difference:
>>> '\\'
'\\'
>>> print '\\'
\
I met the same issue while experimenting with my own Python library and what I've found out is that pip freeze
will show you the library as installed if your current directory contains lib.egg-info
folder. And pip uninstall <lib>
will give you the same error message.
egg-info
folderspip show <lib-name>
to see the details about the location of the library, so you can remove files manually.Instead of adding onSubmit event, you can prevent the default action for submit button.
So, in the following html:
<form name="form" action="insert.php" method="post">
<input type='submit' />
</form>?
first, prevent submit button action. Then make the ajax call asynchronously, and submit the form when the password is correct.
$('input[type=submit]').click(function(e) {
e.preventDefault(); //prevent form submit when button is clicked
var password = $.trim($('#employee_password').val());
$.ajax({
type: "POST",
url: "checkpass.php",
data: "password="+password,
success: function(html) {
var arr=$.parseJSON(html);
var $form = $('form');
if(arr == "Successful")
{
$form.submit(); //submit the form if the password is correct
}
}
});
});????????????????????????????????
Try to send an e-mail through that SMTP server manually/from an interactive mailer (e.g. Mozilla Thunderbird). From the errors, it seems the server won't accept your credentials. Is that SMTP running on the port, or is it SSL+SMTP? You don't seem to be using secure connection in the code you've posted, and I'm not sure if PHPMailer actually supports SSL+SMTP.
(First result of googling your SMTP server's hostname: http://podpora.ebola.cz/idx.php/0/006/article/Strucny-technicky-popis-nastaveni-sluzeb.html seems to say "SMTPs mail sending: secure SSL connection,port: 465" . )
It looks like PHPMailer does support SSL; at least from this. So, you'll need to change this:
define('SMTP_SERVER', 'smtp.ebola.cz');
into this:
define('SMTP_SERVER', 'ssl://smtp.ebola.cz');
I use the counter variable like Fink suggests. If you want For Each and to pass ByRef (which can be more efficient for long strings) you have to cast your element as a string using CStr
Sub Example()
Dim vItm As Variant
Dim aStrings(1 To 4) As String
aStrings(1) = "one": aStrings(2) = "two": aStrings(3) = "three": aStrings(4) = "four"
For Each vItm In aStrings
do_something CStr(vItm)
Next vItm
End Sub
Function do_something(ByRef sInput As String)
Debug.Print sInput
End Function
This happens to me once: I uninstalled the IIS, and the port 80 still was used. Well the problem was that also I had the Report Service
of the Sql Server 2012
installed, so I stopped that service and the problems solves.
See Stop Or Uninstall IIS for running Wamp Server (Apache) on default port (:80) question for more details.
Hope this helps some body, as it help to me.
A little extension to the above answers. The trailing >
directs the input into the file, overwriting existing content. However, one particularly convenient use is the double arrow >>
that appends, adding your new content to the end of the file, as in:
cat <<EOF >> /etc/fstab
data_server:/var/sharedServer/authority/cert /var/sharedFolder/sometin/authority/cert nfs
data_server:/var/sharedServer/cert /var/sharedFolder/sometin/vsdc/cert nfs
EOF
This extends your fstab
without you having to worry about accidentally modifying any of its contents.
If you are using Linux, you can use this bash script: (it perhaps needs some additional code cleaning but it works ... and it's much faster then mysqldump|mysql)
#!/bin/bash
DBUSER=user
DBPASSWORD=pwd
DBSNAME=sourceDb
DBNAME=destinationDb
DBSERVER=db.example.com
fCreateTable=""
fInsertData=""
echo "Copying database ... (may take a while ...)"
DBCONN="-h ${DBSERVER} -u ${DBUSER} --password=${DBPASSWORD}"
echo "DROP DATABASE IF EXISTS ${DBNAME}" | mysql ${DBCONN}
echo "CREATE DATABASE ${DBNAME}" | mysql ${DBCONN}
for TABLE in `echo "SHOW TABLES" | mysql $DBCONN $DBSNAME | tail -n +2`; do
createTable=`echo "SHOW CREATE TABLE ${TABLE}"|mysql -B -r $DBCONN $DBSNAME|tail -n +2|cut -f 2-`
fCreateTable="${fCreateTable} ; ${createTable}"
insertData="INSERT INTO ${DBNAME}.${TABLE} SELECT * FROM ${DBSNAME}.${TABLE}"
fInsertData="${fInsertData} ; ${insertData}"
done;
echo "$fCreateTable ; $fInsertData" | mysql $DBCONN $DBNAME
I got this error this morning, I just did a fresh install of Fedora 14 and was trying to get my local projects back online. I was missing php-mysql, I installed it via yum and the error is now gone.
[Update: As of its 4.0 release, Express no longer uses Connect. However, Express is still compatible with middleware written for Connect. My original answer is below.]
I'm glad you asked about this, because it's definitely a common point of confusion for folks looking at Node.js. Here's my best shot at explaining it:
Node.js itself offers an http module, whose createServer
method returns an object that you can use to respond to HTTP requests. That object inherits the http.Server
prototype.
Connect also offers a createServer
method, which returns an object that inherits an extended version of http.Server
. Connect's extensions are mainly there to make it easy to plug in middleware. That's why Connect describes itself as a "middleware framework," and is often analogized to Ruby's Rack.
Express does to Connect what Connect does to the http module: It offers a createServer
method that extends Connect's Server
prototype. So all of the functionality of Connect is there, plus view rendering and a handy DSL for describing routes. Ruby's Sinatra is a good analogy.
Then there are other frameworks that go even further and extend Express! Zappa, for instance, which integrates support for CoffeeScript, server-side jQuery, and testing.
Here's a concrete example of what's meant by "middleware": Out of the box, none of the above serves static files for you. But just throw in connect.static
(a middleware that comes with Connect), configured to point to a directory, and your server will provide access to the files in that directory. Note that Express provides Connect's middlewares also; express.static
is the same as connect.static
. (Both were known as staticProvider
until recently.)
My impression is that most "real" Node.js apps are being developed with Express these days; the features it adds are extremely useful, and all of the lower-level functionality is still there if you want it.
Assuming your using the Properties class, via its load method, and I guess you are using the ClassLoader getResourceAsStream to get the input stream.
How are you passing in the name, it seems it should be in this form: /com/al/common/email/templates/foo.properties
An HTML parser will treat everything between <script>
and </script>
as part of the script. Some implementations don't even need a correct closing tag; they stop script interpretation at ". </
", which is correct according to the specs
Update In HTML5, and with current browsers, that is not the case anymore.
So, in HTML, this is not possible:
<script>
var x = '</script>';
alert(x)
</script>
A CDATA
section has no effect at all. That's why you need to write
var x = '<' + '/script>'; // or
var x = '<\/script>';
or similar.
This also applies to XHTML files served as text/html
. (Since IE does not support XML content types, this is mostly true.)
In XML, different rules apply. Note that (non IE) browsers only use an XML parser if the XHMTL document is served with an XML content type.
To the XML parser, a script
tag is no better than any other tag. Particularly, a script node may contain non-text child nodes, triggered by "<
"; and a "&
" sign denotes a character entity.
So, in XHTML, this is not possible:
<script>
if (a<b && c<d) {
alert('Hooray');
}
</script>
To work around this, you can wrap the whole script in a CDATA
section. This tells the parser: 'In this section, don't treat "<
" and "&
" as control characters.' To prevent the JavaScript engine from interpreting the "<![CDATA[
" and "]]>
" marks, you can wrap them in comments.
If your script does not contain any "<
" or "&
", you don't need a CDATA
section anyway.
There is a "3 of 9"
control on CodeProject: Barcode .NET Control
Becareful with swig and C++: http://www.swig.org/Doc1.3/SWIG.html#SWIG_nn8
Running SWIG on C++ source files (what would appear in a .C or .cxx file) is not recommended. Even though SWIG can parse C++ class declarations, it ignores declarations that are decoupled from their original class definition (the declarations are parsed, but a lot of warning messages may be generated). For example:
/* Not supported by SWIG */ int foo::bar(int) { ... whatever ... }
It's rarely to have a C++ class limited to only one .h file.
Also, the versions of swig supporting JavaScript is swig-3.0.1 or later.
Kotlin & clean, so you don't have to refactor before code review:
private fun addQueryParameters(url: String?): String? {
val uri = URI(url)
val queryParams = StringBuilder(uri.query.orEmpty())
if (queryParams.isNotEmpty())
queryParams.append('&')
queryParams.append(URLEncoder.encode("$QUERY_PARAM=$param", Xml.Encoding.UTF_8.name))
return URI(uri.scheme, uri.authority, uri.path, queryParams.toString(), uri.fragment).toString()
}
You can see a solved solution with a working demo here that allows you to preview and submit form files to the server. For your case, you need to use Ajax to facilitate the file upload to the server:
<from action="" id="formContent" method="post" enctype="multipart/form-data">
<span>File</span>
<input type="file" id="file" name="file" size="10"/>
<input id="uploadbutton" type="button" value="Upload"/>
</form>
The data being submitted is a formdata. On your jQuery, use a form submit function instead of a button click to submit the form file as shown below.
$(document).ready(function () {
$("#formContent").submit(function(e){
e.preventDefault();
var formdata = new FormData(this);
$.ajax({
url: "ajax_upload_image.php",
type: "POST",
data: formdata,
mimeTypes:"multipart/form-data",
contentType: false,
cache: false,
processData: false,
success: function(){
alert("successfully submitted");
});
});
});
<?php
$taxonomy = 'product_cat';
$orderby = 'name';
$show_count = 0; // 1 for yes, 0 for no
$pad_counts = 0; // 1 for yes, 0 for no
$hierarchical = 1; // 1 for yes, 0 for no
$title = '';
$empty = 0;
$args = array(
'taxonomy' => $taxonomy,
'orderby' => $orderby,
'show_count' => $show_count,
'pad_counts' => $pad_counts,
'hierarchical' => $hierarchical,
'title_li' => $title,
'hide_empty' => $empty
);
$all_categories = get_categories( $args );
foreach ($all_categories as $cat) {
if($cat->category_parent == 0) {
$category_id = $cat->term_id;
echo '<br /><a href="'. get_term_link($cat->slug, 'product_cat') .'">'. $cat->name .'</a>';
$args2 = array(
'taxonomy' => $taxonomy,
'child_of' => 0,
'parent' => $category_id,
'orderby' => $orderby,
'show_count' => $show_count,
'pad_counts' => $pad_counts,
'hierarchical' => $hierarchical,
'title_li' => $title,
'hide_empty' => $empty
);
$sub_cats = get_categories( $args2 );
if($sub_cats) {
foreach($sub_cats as $sub_category) {
echo $sub_category->name ;
}
}
}
}
?>
This will list all the top level categories and subcategories under them hierarchically. do not use the inner query if you just want to display the top level categories. Style it as you like.
Use the command
git clone --help
to see whether your git supports the command
git clone --branch tag_name
If not, just do the following:
git clone repo_url
cd repo
git checkout tag_name
Here's why you saw the menu with the code you listed in your onClick
method:
You were creating an Intent with the constructor that takes a string for the action parameter of the Intent
's IntentFilter
. You passed "android.intent.action.MAIN"
as the argument to that constructor, which specifies that the Intent
can be satisfied by any Activity
with an IntentFilter including <action="android.intent.action.MAIN">
.
When you called startActivity
with that Intent
, you effectively told the Android OS to go find an Activity
(in any app installed on the system) that specifies the android.intent.action.MAIN
action. When there are multiple Activities that qualify (and there are in this case since every app will have a main Activity
with an IntentFilter
including the "android.intent.action.MAIN"
action), the OS presents a menu to let the user choose which app to use.
As to the question of how to get back to your main activity, as with most things, it depends on the specifics of your app. While the accepted answer probably worked in your case, I don't think it's the best solution, and it's probably encouraging you to use a non-idiomatic UI in your Android app. If your Button
's onClick()
method contains only a call to finish()
then you should most likely remove the Button
from the UI and just let the user push the hardware/software back button, which has the same functionality and is idiomatic for Android. (You'll often see back Buttons used to emulate the behavior of an iOS UINavigationController navigationBar which is discouraged in Android apps).
If your main activity launches a stack of Activities and you want to provide an easy way to get back to the main activity without repeatedly pressing the back button, then you want to call startActivity
after setting the flag Intent.FLAG_ACTIVITY_CLEAR_TOP
which will close all the Activities in the call stack which are above your main activity and bring your main activity to the top of the call stack. See below (assuming your main activity subclass is called MainActivity:
btnReturn1.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
Intent i=new Intent(this, MainActivity.class);
i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(i);
}
)};
echo
has the problem that if var
contains something like -e
, it will be interpreted as a flag. Another option is printf
, but printf "$var" > "$destdir"
will expand any escaped characters in the variable, so if the variable contains backslashes the file contents won't match. However, because printf
only interprets backslashes as escapes in the format string, you can use the %s
format specifier to store the exact variable contents to the destination file:
printf "%s" "$var" > "$destdir"
I solve the problem by creating a folder named "src/test/resources" first, then i rename the folder to "src/test/java" ,finally create a "src/test/resources" folder again .It works .
If you are using Apache reverse proxy for serving an app running on a localhost port you must add a location to your vhost.
<Location />
ProxyPass http://localhost:1339/ retry=0
ProxyPassReverse http://localhost:1339/
ProxyPreserveHost On
ProxyErrorOverride Off
</Location>
To get the IP address have following options
console.log(">>>", req.ip);// this works fine for me returned a valid ip address
console.log(">>>", req.headers['x-forwarded-for'] );// returned a valid IP address
console.log(">>>", req.headers['X-Real-IP'] ); // did not work returned undefined
console.log(">>>", req.connection.remoteAddress );// returned the loopback IP address
So either use req.ip or req.headers['x-forwarded-for']
It can't be done directly, but you can emulate the same thing using function pointers and explicitly passing the "this" parameter:
typedef struct client_t client_t, *pno;
struct client_t
{
pid_t pid;
char password[TAM_MAX]; // -> 50 chars
pno next;
pno (*AddClient)(client_t *);
};
pno client_t_AddClient(client_t *self) { /* code */ }
int main()
{
client_t client;
client.AddClient = client_t_AddClient; // probably really done in some init fn
//code ..
client.AddClient(&client);
}
It turns out that doing this, however, doesn't really buy you an awful lot. As such, you won't see many C APIs implemented in this style, since you may as well just call your external function and pass the instance.
On Mac OS X, neither of these regex syntaxes work inside sed for matching whole words
\bmyWord\b
\<myWord\>
Hear me now and believe me later, this ugly syntax is what you need to use:
/[[:<:]]myWord[[:>:]]/
So, for example, to replace mint with minty for whole words only:
sed "s/[[:<:]]mint[[:>:]]/minty/g"
Source: re_format man page
You can try something like this
var access_token = driver.findElement(webdriver.By.name("AccToken"))
var access_token_getTextFunction = function() {
access_token.getText().then(function(value) {
console.log(value);
return value;
});
}
Than you can call this function where you want to get the value..
Bit late, but the implementation used by System.Random is Environment.TickCount
:
public Random()
: this(Environment.TickCount) {
}
This avoids having to cast DateTime.UtcNow.Ticks
from a long, which is risky anyway as it doesn't represent ticks since system start, but "the number of 100-nanosecond intervals that have elapsed since 12:00:00 midnight, January 1, 0001 (0:00:00 UTC on January 1, 0001, in the Gregorian calendar)".
Was looking for a good integer seed for the TestApi's StringFactory.GenerateRandomString
On osX
, Your path should be:
path = "/Users/name/Downloads/filename"
with name
the current user logged in
Use this class in your layout :
public class ActionEditText extends EditText
{
public ActionEditText(Context context)
{
super(context);
}
public ActionEditText(Context context, AttributeSet attrs)
{
super(context, attrs);
}
public ActionEditText(Context context, AttributeSet attrs, int defStyle)
{
super(context, attrs, defStyle);
}
@Override
public InputConnection onCreateInputConnection(EditorInfo outAttrs)
{
InputConnection conn = super.onCreateInputConnection(outAttrs);
outAttrs.imeOptions &= ~EditorInfo.IME_FLAG_NO_ENTER_ACTION;
return conn;
}
}
In xml:
<com.test.custom.ActionEditText
android:id="@+id/postED"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1"
android:background="@android:color/transparent"
android:gravity="top|left"
android:hint="@string/msg_type_message_here"
android:imeOptions="actionSend"
android:inputType="textMultiLine"
android:maxLines="5"
android:padding="5dip"
android:scrollbarAlwaysDrawVerticalTrack="true"
android:textColor="@color/white"
android:textSize="20sp" />
Nice question, a while ago I've experimented a bit with this, but haven't used it a lot because it's still not bulletproof. I divided the plot area into a 32x32 grid and calculated a 'potential field' for the best position of a label for each line according the following rules:
The code was something like this:
import matplotlib.pyplot as plt
import numpy as np
from scipy import ndimage
def my_legend(axis = None):
if axis == None:
axis = plt.gca()
N = 32
Nlines = len(axis.lines)
print Nlines
xmin, xmax = axis.get_xlim()
ymin, ymax = axis.get_ylim()
# the 'point of presence' matrix
pop = np.zeros((Nlines, N, N), dtype=np.float)
for l in range(Nlines):
# get xy data and scale it to the NxN squares
xy = axis.lines[l].get_xydata()
xy = (xy - [xmin,ymin]) / ([xmax-xmin, ymax-ymin]) * N
xy = xy.astype(np.int32)
# mask stuff outside plot
mask = (xy[:,0] >= 0) & (xy[:,0] < N) & (xy[:,1] >= 0) & (xy[:,1] < N)
xy = xy[mask]
# add to pop
for p in xy:
pop[l][tuple(p)] = 1.0
# find whitespace, nice place for labels
ws = 1.0 - (np.sum(pop, axis=0) > 0) * 1.0
# don't use the borders
ws[:,0] = 0
ws[:,N-1] = 0
ws[0,:] = 0
ws[N-1,:] = 0
# blur the pop's
for l in range(Nlines):
pop[l] = ndimage.gaussian_filter(pop[l], sigma=N/5)
for l in range(Nlines):
# positive weights for current line, negative weight for others....
w = -0.3 * np.ones(Nlines, dtype=np.float)
w[l] = 0.5
# calculate a field
p = ws + np.sum(w[:, np.newaxis, np.newaxis] * pop, axis=0)
plt.figure()
plt.imshow(p, interpolation='nearest')
plt.title(axis.lines[l].get_label())
pos = np.argmax(p) # note, argmax flattens the array first
best_x, best_y = (pos / N, pos % N)
x = xmin + (xmax-xmin) * best_x / N
y = ymin + (ymax-ymin) * best_y / N
axis.text(x, y, axis.lines[l].get_label(),
horizontalalignment='center',
verticalalignment='center')
plt.close('all')
x = np.linspace(0, 1, 101)
y1 = np.sin(x * np.pi / 2)
y2 = np.cos(x * np.pi / 2)
y3 = x * x
plt.plot(x, y1, 'b', label='blue')
plt.plot(x, y2, 'r', label='red')
plt.plot(x, y3, 'g', label='green')
my_legend()
plt.show()
And the resulting plot:
Here is how I solved my problem:
Directive
app.directive("directive_name", function(){
return {
restrict: 'E',
transclude: true,
template: function(elem, attr){
return '<div><h2>{{'+attr.scope+'}}</h2></div>';
},
replace: true
};
})
Controller
$scope.building = function(data){
var chart = angular.element(document.createElement('directive_name'));
chart.attr('scope', data);
$compile(chart)($scope);
angular.element(document.getElementById('wrapper')).append(chart);
}
I now can use different scopes through the same directive and append them dynamically.
If your primary key is autoincrement then, you have to set the value for the primary key. for the save(); method to work as a update().else it will create a new record in db.
if you are using jsp form then use hidden filed to set primary key.
Jsp:
<form:input type="hidden" path="id" value="${user.id}"/>
Java:
@PostMapping("/update")
public String updateUser(@ModelAttribute User user) {
repo.save(user);
return "redirect:userlist";
}
also look at this:
@Override
@Transactional
public Customer save(Customer customer) {
// Is new?
if (customer.getId() == null) {
em.persist(customer);
return customer;
} else {
return em.merge(customer);
}
}
Go to the file C:\wamp\apps\phpmyadmin3.2.0.1\config.inc.php
Find the line $cfg['Servers'][$i]['password']='' and change it to
$cfg['Servers'][$i]['password']='root'
where root
is the name of the password you had set in this instance
Hope this helps somebody.
With this type of thing you need to be careful what your actual working directory is. For example, you may not run the script from the directory the file is in. In this case, you can't just use a relative path by itself.
If you are sure the file you want is in a subdirectory beneath where the script is actually located, you can use __file__
to help you out here. __file__
is the full path to where the script you are running is located.
So you can fiddle with something like this:
import os
script_dir = os.path.dirname(__file__) #<-- absolute dir the script is in
rel_path = "2091/data.txt"
abs_file_path = os.path.join(script_dir, rel_path)
You can use print-dict
from print_dict import pd
dict1 = {
'key': 'value'
}
pd(dict1)
Output:
{
'key': 'value'
}
Output of this Python code:
{
'one': 'value-one',
'two': 'value-two',
'three': 'value-three',
'four': {
'1': '1',
'2': '2',
'3': [1, 2, 3, 4, 5],
'4': {
'method': <function custom_method at 0x7ff6ecd03e18>,
'tuple': (1, 2),
'unicode': '?',
'ten': 'value-ten',
'eleven': 'value-eleven',
'3': [1, 2, 3, 4]
}
},
'object1': <__main__.Object1 object at 0x7ff6ecc588d0>,
'object2': <Object2 info>,
'class': <class '__main__.Object1'>
}
Install:
$ pip install print-dict
Disclosure: I'm the author of print-dict
Adding to all the answers above (which is why I made it a community wiki), it is probably best to mark any input<type="text">
with tabindex="-1"
, especially if using readonly instead of disabled (and perhaps the <input type="file">
, although it should be hidden, it is still in the document, apparently). Labels did not act correctly when using the tab / enter key combinations, but the button did. So if you are copying one of the other solutions on this page, you may want to make those changes.
I have just modified following line in users
and password_resets
migration file.
Old : $table->string('email')->unique();
New : $table->string('email', 128)->unique();
Access requires parentheses in the FROM
clause for queries which include more than one join. Try it this way ...
FROM
((tbl_employee
INNER JOIN tbl_netpay
ON tbl_employee.emp_id = tbl_netpay.emp_id)
INNER JOIN tbl_gross
ON tbl_employee.emp_id = tbl_gross.emp_ID)
INNER JOIN tbl_tax
ON tbl_employee.emp_id = tbl_tax.emp_ID;
If possible, use the Access query designer to set up your joins. The designer will add parentheses as required to keep the db engine happy.
As a generic extension, 2.0-compatible:
using System.Collections.Generic;
public static class Extensions {
//=========================================================================
// Removes all instances of [itemToRemove] from array [original]
// Returns the new array, without modifying [original] directly
// .Net2.0-compatible
public static T[] RemoveFromArray<T> (this T[] original, T itemToRemove) {
int numIdx = System.Array.IndexOf(original, itemToRemove);
if (numIdx == -1) return original;
List<T> tmp = new List<T>(original);
tmp.RemoveAt(numIdx);
return tmp.ToArray();
}
}
Usage:
int[] numbers = {1, 3, 4, 9, 2};
numbers = numbers.RemoveFromArray(4);
If you already have a file package.json
in the project and it contains grunt
in dependency,
"devDependencies": {
"grunt": "~0.4.0",
Then you can run npm install
to resolve the issue
var text = "Ann@26"
var editedText = text.Replace("@", "\t");
In Preferences -> General -> Web Browser, there is the option "Use internal web browser". Select "Use external web browser" instead and check "Firefox".
I have found the following script is very good at maintaining indexes, you can have this scheduled to run nightly or whatever other timeframe you wish.
firstly u have to import numpy library (refer code for making a numpy array)
shape
only gives the output only if the variable is attribute of numpy library .in other words it must be a np.array or any other data structure of numpy.
Eg.
`>>> import numpy
>>> a=numpy.array([[1,1],[1,1]])
>>> a.shape
(2, 2)`
Here is what sudo apt-get purge ruby*
removed relating to GRUB
for me:
grub-pc
grub-gfxpayload-lists
grub2-common
grub-pc-bin
grub-common
You can Highlight text in a <textarea>
, using a <div>
carefully placed behind it.
check out Highlight Text Inside a Textarea.
Lambdageek correctly points out that because associativity does not hold for floating-point numbers, the "optimization" of a*a*a*a*a*a
to (a*a*a)*(a*a*a)
may change the value. This is why it is disallowed by C99 (unless specifically allowed by the user, via compiler flag or pragma). Generally, the assumption is that the programmer wrote what she did for a reason, and the compiler should respect that. If you want (a*a*a)*(a*a*a)
, write that.
That can be a pain to write, though; why can't the compiler just do [what you consider to be] the right thing when you use pow(a,6)
? Because it would be the wrong thing to do. On a platform with a good math library, pow(a,6)
is significantly more accurate than either a*a*a*a*a*a
or (a*a*a)*(a*a*a)
. Just to provide some data, I ran a small experiment on my Mac Pro, measuring the worst error in evaluating a^6 for all single-precision floating numbers between [1,2):
worst relative error using powf(a, 6.f): 5.96e-08
worst relative error using (a*a*a)*(a*a*a): 2.94e-07
worst relative error using a*a*a*a*a*a: 2.58e-07
Using pow
instead of a multiplication tree reduces the error bound by a factor of 4. Compilers should not (and generally do not) make "optimizations" that increase error unless licensed to do so by the user (e.g. via -ffast-math
).
Note that GCC provides __builtin_powi(x,n)
as an alternative to pow( )
, which should generate an inline multiplication tree. Use that if you want to trade off accuracy for performance, but do not want to enable fast-math.
Use the Figure.savefig()
method, like so:
ax = s.hist() # s is an instance of Series
fig = ax.get_figure()
fig.savefig('/path/to/figure.pdf')
It doesn't have to end in pdf
, there are many options. Check out the documentation.
Alternatively, you can use the pyplot
interface and just call the savefig
as a function to save the most recently created figure:
import matplotlib.pyplot as plt
s.hist()
plt.savefig('path/to/figure.pdf') # saves the current figure
mkdir [-switch] foldername
-p
is a switch which is optional, it will create subfolder and parent folder as well even parent folder doesn't exist.
From the man page:
-p, --parents no error if existing, make parent directories as needed
Example:
mkdir -p storage/framework/{sessions,views,cache}
This will create subfolder sessions,views,cache inside framework folder irrespective of 'framework' was available earlier or not.
here is a version that can split on a pattern using patindex, a simple adaptation of the post above. I had a case where I needed to split a string that contained multiple separator chars.
alter FUNCTION dbo.splitstring ( @stringToSplit VARCHAR(1000), @splitPattern varchar(10) )
RETURNS
@returnList TABLE ([Name] [nvarchar] (500))
AS
BEGIN
DECLARE @name NVARCHAR(255)
DECLARE @pos INT
WHILE PATINDEX(@splitPattern, @stringToSplit) > 0
BEGIN
SELECT @pos = PATINDEX(@splitPattern, @stringToSplit)
SELECT @name = SUBSTRING(@stringToSplit, 1, @pos-1)
INSERT INTO @returnList
SELECT @name
SELECT @stringToSplit = SUBSTRING(@stringToSplit, @pos+1, LEN(@stringToSplit)-@pos)
END
INSERT INTO @returnList
SELECT @stringToSplit
RETURN
END
select * from dbo.splitstring('stringa/stringb/x,y,z','%[/,]%');
result looks like this
stringa stringb x y z
Instead of stop()
you could try with:
sound.pause();
sound.currentTime = 0;
This should have the desired effect.
its super easy.
You'll need each machine to have it's own copy of ElasticSearch (simply copy the one you have now) -- the reason is that each machine / node whatever is going to keep it's own files that are sharded accross the cluster.
The only thing you really need to do is edit the config file to include the name of the cluster.
If all machines have the same cluster name elasticsearch will do the rest automatically (as long as the machines are all on the same network)
Read here to get you started: https://www.elastic.co/guide/en/elasticsearch/guide/current/deploy.html
When you create indexes (where the data goes) you define at that time how many replicas you want (they'll be distributed around the cluster)
If you need to disable the team for now, as you don't have a development account, just change the target at the top menu to iPhone instead of generic iOS device or real device.
I faced the same issue while trying to build sample project gplus-quickstart-csharp-master.
I looked closely error message and found a workaround from overcoming this error, hopefully, this will help.
Enjoy !!
Its a good idea to work with odd number when trying to develop a good hast function for string. this function takes a string and return a index value, so far its work pretty good. and has less collision. the index ranges from 0 - 300 maybe even more than that, but i haven't gotten any higher so far even with long words like "electromechanical engineering"
int keyHash(string key)
{
unsigned int k = (int)key.length();
unsigned int u = 0,n = 0;
for (Uint i=0; i<k; i++)
{
n = (int)key[i];
u += 7*n%31;
}
return u%139;
}
another thing you can do is multiplying each character int parse by the index as it increase like the word "bear" (0*b) + (1*e) + (2*a) + (3*r) which will give you an int value to play with. the first hash function above collide at "here" and "hear" but still great at give some good unique values. the one below doesn't collide with "here" and "hear" because i multiply each character with the index as it increases.
int keyHash(string key)
{
unsigned int k = (int)key.length();
unsigned int u = 0,n = 0;
for (Uint i=0; i<k; i++)
{
n = (int)key[i];
u += i*n%31;
}
return u%139;
}
I know this has already been answered in several forms but here is my bit of code with a look to go through all the characters.
Here is the code, started with the class
public class CheckChValue { // Class name
public static void main(String[] args) { // class main
String name = "admin"; // String to check it's value
int nameLenght = name.length(); // length of the string used for the loop
for(int i = 0; i < nameLenght ; i++){ // while counting characters if less than the length add one
char character = name.charAt(i); // start on the first character
int ascii = (int) character; //convert the first character
System.out.println(character+" = "+ ascii); // print the character and it's value in ascii
}
}
}
If your are using Chrome, try adding an opentype (OTF) version of your font as shown below:
...
url('icomoon.otf') format('opentype'),
...
Cheers!
It's because there can only be one definition of A::a
that all the translation units use.
If you performed static int a = 3;
in a class in a header included in all a translation units then you'd get multiple definitions. Therefore, non out-of-line definition of a static is forcibly made a compiler error.
Using static inline
or static const
remedies this. static inline
only concretises the symbol if it is used in the translation unit and ensures the linker only selects and leaves one copy if it's defined in multiple translation units due to it being in a comdat group. const
at file scope makes the compiler never emit a symbol because it's always substituted immediately in the code unless extern
is used, which is not permitted in a class.
One thing to note is static inline int b;
is treated as a definition whereas static const int b
or static const A b;
are still treated as a declaration and must be defined out-of-line if you don't define it inside the class. Interestingly static constexpr A b;
is treated as a definition, whereas static constexpr int b;
is an error and must have an initialiser (this is because they now become definitions and like any const/constexpr definition at file scope, they require an initialiser which an int doesn't have but a class type does because it has an implicit = A()
when it is a definition -- clang allows this but gcc requires you to explicitly initialise or it is an error. This is not a problem with inline instead). static const A b = A();
is not allowed and must be constexpr
or inline
in order to permit an initialiser for a static object with class type i.e to make a static member of class type more than a declaration. So yes in certain situations A a;
is not the same as explicitly initialising A a = A();
(the former can be a declaration but if only a declaration is allowed for that type then the latter is an error. The latter can only be used on a definition. constexpr
makes it a definition). If you use constexpr
and specify a default constructor then the constructor will need to be constexpr
#include<iostream>
struct A
{
int b =2;
mutable int c = 3; //if this member is included in the class then const A will have a full .data symbol emitted for it on -O0 and so will B because it contains A.
static const int a = 3;
};
struct B {
A b;
static constexpr A c; //needs to be constexpr or inline and doesn't emit a symbol for A a mutable member on any optimisation level
};
const A a;
const B b;
int main()
{
std::cout << a.b << b.b.b;
return 0;
}
A static member is an outright file scope declaration extern int A::a;
(which can only be made in the class and out of line definitions must refer to a static member in a class and must be definitions and cannot contain extern) whereas a non-static member is part of the complete type definition of a class and have the same rules as file scope declarations without extern
. They are implicitly definitions. So int i[]; int i[5];
is a redefinition whereas static int i[]; int A::i[5];
isn't but unlike 2 externs, the compiler will still detect a duplicate member if you do static int i[]; static int i[5];
in the class.
Using Java:
WebElement webElement = driver.findElement(By.xpath(""));//You can use xpath, ID or name whatever you like
webElement.sendKeys(Keys.TAB);
webElement.sendKeys(Keys.ENTER);
The problem with standard pings is they're ICMP, which a lot of places don't let through for security and traffic reasons. That might explain the failure.
Ruby prior to 1.9 had a TCP-based ping.rb
, which will run with Ruby 1.9+. All you have to do is copy it from the 1.8.7 installation to somewhere else. I just confirmed that it would run by pinging my home router.
I think that it's around 2GB. While the answer by Pete Kirkham is very interesting and probably holds truth, I have allocated upwards of 3GB without error, however it did not use 3GB in practice. That might explain why you were able to allocate 2.5 GB on 2GB RAM with no swap space. In practice, it wasn't using 2.5GB.
For anyone who is wanting to sort by date (UK format), I used the following:
//Sort by day, then month, then year
for(i=0;i<=2; i++){
dataCourses.sort(function(a, b){
a = a.lastAccessed.split("/");
b = b.lastAccessed.split("/");
return a[i]>b[i] ? -1 : a[i]<b[i] ? 1 : 0;
});
}
If you're looking for a file to use in httpd-ssl.conf as a value for SSLCertificateKeyFile, a PEM file should work just fine.
See this SO question/answer for more details on the SSL options in that file.
Recent versions of Cordova have the version number in www/cordova.js.
Neither.
Django is a framework, not a language. Python is the language in which Django is written.
Django is a collection of Python libs allowing you to quickly and efficiently create a quality Web application, and is suitable for both frontend and backend.
However, Django is pretty famous for its "Django admin", an auto generated backend that allows you to manage your website in a blink for a lot of simple use cases without having to code much.
More precisely, for the front end, Django helps you with data selection, formatting, and display. It features URL management, a templating language, authentication mechanisms, cache hooks, and various navigation tools such as paginators.
For the backend, Django comes with an ORM that lets you manipulate your data source with ease, forms (an HTML independent implementation) to process user input and validate data and signals, and an implementation of the observer pattern. Plus a tons of use-case specific nifty little tools.
For the rest of the backend work Django doesn't help with, you just use regular Python. Business logic is a pretty broad term.
You probably want to know as well that Django comes with the concept of apps, a self contained pluggable Django library that solves a problem. The Django community is huge, and so there are numerous apps that do specific business logic that vanilla Django doesn't.
Track the state of the connection yourself. With a boolean. Set it to false
at declaration. Use the various events (connect, disconnect, reconnect, etc.) to reassign the current boolean value. Note: Using undocumented API features (e.g., socket.connected
), is not a good idea; the feature could get removed in a subsequent version without the removal being mentioned.