I was able to fix my Code 1 by running Visual Studio as Admin. Apparently it didn't have access to execute the shell commands without Admin.
Here's a simple function -
function getNumberFromCurrency(currency) {
return Number(currency.replace(/[$,]/g,''))
}
console.log(getNumberFromCurrency('$1,000,000.99')) // 1000000.99
_x000D_
Some good answers here but just adding an approach that won't be affected by borders and padding:
<style type="text/css">
html, body{width: 100%; height: 100%; padding: 0; margin: 0}
div{position: absolute; padding: 1em; border: 1px solid #000}
#nw{background: #f09; top: 0; left: 0; right: 50%; bottom: 50%}
#ne{background: #f90; top: 0; left: 50%; right: 0; bottom: 50%}
#sw{background: #009; top: 50%; left: 0; right: 50%; bottom: 0}
#se{background: #090; top: 50%; left: 50%; right: 0; bottom: 0}
</style>
<div id="nw">test</div>
<div id="ne">test</div>
<div id="sw">test</div>
<div id="se">test</div>
If you want to import the promise based version of fs
as an ES module you can do:
import { promises as fs } from 'fs'
await fs.writeFile(...)
As soon as node v14 is released (see this PR), you can also use
import { writeFile } from 'fs/promises'
HTML Table row heights will typically change proportionally to the table height, if the table height is larger than the height of your rows. Since the table is forcing the height of your rows, you can remove the table height to resolve the issue. If this is not acceptable, you can also give the rows explicit height, and add a third row that will auto size to the remaining table height.
Another option in CSS2 is the Max-Height Property, although it may lead to strange behavior in a table.http://www.w3schools.com/cssref/pr_dim_max-height.asp
.
I've always considered throwing checked exceptions in the constructor to be bad practice, or at least something that should be avoided.
The reason for this is that you cannot do this :
private SomeObject foo = new SomeObject();
Instead you must do this :
private SomeObject foo;
public MyObject() {
try {
foo = new SomeObject()
} Catch(PointlessCheckedException e) {
throw new RuntimeException("ahhg",e);
}
}
At the point when I'm constructing SomeObject I know what it's parameters are so why should I be expected to wrap it in a try catch? Ahh you say but if I'm constructing an object from dynamic parameters I don't know if they're valid or not. Well, you could... validate the parameters before passing them to the constructor. That would be good practice. And if all you're concerned about is whether the parameters are valid then you can use IllegalArgumentException.
So instead of throwing checked exceptions just do
public SomeObject(final String param) {
if (param==null) throw new NullPointerException("please stop");
if (param.length()==0) throw new IllegalArgumentException("no really, please stop");
}
Of course there are cases where it might just be reasonable to throw a checked exception
public SomeObject() {
if (todayIsWednesday) throw new YouKnowYouCannotDoThisOnAWednesday();
}
But how often is that likely?
Write a small program that does the trick. Depending on the language you use it takes between 10 seconds to 1 min. Faster than installing any application for sure. In command line with proper setup PHP
php -q
<?php $t=file_get_contents("filename"); echo str_replace(array("\n", "\r"), array("\\n", "\\r"), $t); ?>
One way of reducing the heap sice of a system with limited resources may be to play around with the -XX:MaxHeapFreeRatio variable. This is usually set to 70, and is the maximum percentage of the heap that is free before the GC shrinks it. Setting it to a lower value, and you will see in eg the jvisualvm profiler that a smaller heap sice is usually used for your program.
EDIT: To set small values for -XX:MaxHeapFreeRatio you must also set -XX:MinHeapFreeRatio Eg
java -XX:MinHeapFreeRatio=10 -XX:MaxHeapFreeRatio=25 HelloWorld
EDIT2: Added an example for a real application that starts and does the same task, one with default parameters and one with 10 and 25 as parameters. I didn't notice any real speed difference, although java in theory should use more time to increase the heap in the latter example.
At the end, max heap is 905, used heap is 378
At the end, max heap is 722, used heap is 378
This actually have some inpact, as our application runs on a remote desktop server, and many users may run it at once.
datepicker in Finnish (Käännös suomeksi)
$.datepicker.regional['fi'] = {
closeText: "Valmis", // Display text for close link
prevText: "Edel", // Display text for previous month link
nextText: "Seur", // Display text for next month link
currentText: "Tänään", // Display text for current month link
monthNames: [ "Tammikuu","Helmikuu","Maaliskuu","Huhtikuu","Toukokuu","Kesäkuu",
"Heinäkuu","Elokuu","Syyskuu","Lokakuu","Marraskuu","Joulukuu" ], // Names of months for drop-down and formatting
monthNamesShort: [ "Tam", "Hel", "Maa", "Huh", "Tou", "Kes", "Hei", "Elo", "Syy", "Lok", "Mar", "Jou" ], // For formatting
dayNames: [ "Sunnuntai", "Maanantai", "Tiistai", "Keskiviikko", "Torstai", "Perjantai", "Lauantai" ], // For formatting
dayNamesShort: [ "Sun", "Maa", "Tii", "Kes", "Tor", "Per", "Lau" ], // For formatting
dayNamesMin: [ "Su","Ma","Ti","Ke","To","Pe","La" ], // Column headings for days starting at Sunday
weekHeader: "Vk", // Column header for week of the year
dateFormat: "mm/dd/yy", // See format options on parseDate
firstDay: 0, // The first day of the week, Sun = 0, Mon = 1, ...
isRTL: false, // True if right-to-left language, false if left-to-right
showMonthAfterYear: false, // True if the year select precedes month, false for month then year
yearSuffix: "" // Additional text to append to the year in the month headers
};
What i suggest is , its better to use post than get. here are some difference between post VS get
Some notes on GET requests:
Some notes on POST requests:
HTML Code
<html>
<head></head>
<body>
<form action="output.php" method="post">
Red<input type="checkbox" name="color[]" id="color" value="red">
Green<input type="checkbox" name="color[]" id="color" value="green">
Blue<input type="checkbox" name="color[]" id="color" value="blue">
Cyan<input type="checkbox" name="color[]" id="color" value="cyan">
Magenta<input type="checkbox" name="color[]" id="color" value="Magenta">
Yellow<input type="checkbox" name="color[]" id="color" value="yellow">
Black<input type="checkbox" name="color[]" id="color" value="black">
<input type="submit" value="submit">
</form>
<body>
</html>
PHP code
<?php
if(isset($_POST['color'])) {
$name = $_POST['color'];
echo "You chose the following color(s): <br>";
foreach ($name as $color){
echo $color."<br />";
}} // end brace for if(isset
else {
echo "You did not choose a color.";
}
?>
Try this code:
@echo off
color 02
set num1=0
set num2=1
set terminator=5
:loop
set /a num1= %num1% + %num2%
if %num1%==%terminator% goto close
goto open
:close
echo %num1%
pause
exit
:open
echo %num1%
goto loop
num1
is the number to be incremented and num2
is the value added to num1
and terminator is the value where the num1
will end. You can indicate different value for terminator in this statement (if %num1%==%terminator% goto close
). This is the boolean expression goto close is the process if the boolean is true and goto open is the process if the boolean is false.
In my case, it was very slow and i needed to change inspections settings, i tried everything, the only thing that worked was going from 2018.2 version to 2016.2, sometimes is better to be some updates behind...
NULL
is not a built-in constant in the C or C++ languages. In fact, in C++ it's more or less obsolete, just use a plain literal 0
instead, the compiler will do the right thing depending on the context.
In newer C++ (C++11 and higher), use nullptr
(as pointed out in a comment, thanks).
Otherwise, add
#include <stddef.h>
to get the NULL
definition.
As shown in the figure given below, a class extends another class, an interface extends another interface but a class implements an interface.
For more details
Nowdays, there is a new technique suggested by google to cache and improve your image rendering process:
<script src="lazysizes.min.js" async></script>
lazyload
class to your image:
<img data-src="images/flower3.png" class="lazyload" alt="">
You have an error in your OrderQuantity column. It is named "OrderQuantity" in the INSERT statement and "OrderQantity" in the table definition.
Also, I don't think you can use NOW()
as default value in OrderDate. Try to use the following:
OrderDate TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
I agree the documentation on imageEdgeInsets
and titleEdgeInsets
should be better, but I figured out how to get the correct positioning without resorting to trial and error.
The general idea is here at this question, but that was if you wanted both text and image centered. We don't want the image and text to be centered individually, we want the image and the text to be centered together as a single entity. This is in fact what UIButton already does so we simply need to adjust the spacing.
CGFloat spacing = 10; // the amount of spacing to appear between image and title
tabBtn.imageEdgeInsets = UIEdgeInsetsMake(0, 0, 0, spacing);
tabBtn.titleEdgeInsets = UIEdgeInsetsMake(0, spacing, 0, 0);
I also turned this into a category for UIButton so it will be easy to use:
UIButton+Position.h
@interface UIButton(ImageTitleCentering)
-(void) centerButtonAndImageWithSpacing:(CGFloat)spacing;
@end
UIButton+Position.m
@implementation UIButton(ImageTitleCentering)
-(void) centerButtonAndImageWithSpacing:(CGFloat)spacing {
self.imageEdgeInsets = UIEdgeInsetsMake(0, 0, 0, spacing);
self.titleEdgeInsets = UIEdgeInsetsMake(0, spacing, 0, 0);
}
@end
So now all I have to do is:
[button centerButtonAndImageWithSpacing:10];
And I get what I need every time. No more messing with the edge insets manually.
EDIT: Swapping Image and Text
In response to @Javal in comments
Using this same mechanism, we can swap the image and the text. To accomplish the swap, simply use a negative spacing but also include the width of the text and the image. This will require frames to be known and layout performed already.
[self.view layoutIfNeeded];
CGFloat flippedSpacing = -(desiredSpacing + button.currentImage.size.width + button.titleLabel.frame.size.width);
[button centerButtonAndImageWithSpacing:flippedSpacing];
Of course you will probably want to make a nice method for this, potentially adding a second category method, this is left as an exercise to the reader.
Try this
$.trim($("#spa").val()).length > 0
It will not treat any white space if any as a correct value
You do not need to use substring at all since your format
doesn't hold that info.
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String fechaStr = "2013-10-10 10:49:29.10000";
Date fechaNueva = format.parse(fechaStr);
System.out.println(format.format(fechaNueva)); // Prints 2013-10-10 10:49:29
Yes, it's safe to delete these, although it may force a dynamic recompilation of any .NET applications you run on the server.
For background, see the Understanding ASP.NET dynamic compilation article on MSDN.
I'm using this code, pretty good. You will very easy to know user-agents visitted your site. This code is opening a file and write the user_agent down the file. You can check each day this file by go to yourdomain.com/useragent.txt
and know about new user_agents and put them in your condition of if clause.
$user_agent = strtolower($_SERVER['HTTP_USER_AGENT']);
if(!preg_match("/Googlebot|MJ12bot|yandexbot/i", $user_agent)){
// if not meet the conditions then
// do what you need
// here open a file and write the user_agent down the file. You can check each day this file useragent.txt and know about new user_agents and put them in your condition of if clause
if($user_agent!=""){
$myfile = fopen("useragent.txt", "a") or die("Unable to open file useragent.txt!");
fwrite($myfile, $user_agent);
$user_agent = "\n";
fwrite($myfile, $user_agent);
fclose($myfile);
}
}
This is the content of useragent.txt
Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Mozilla/5.0 (compatible; MJ12bot/v1.4.6; http://mj12bot.com/)Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.96 Mobile Safari/537.36 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)mozilla/5.0 (compatible; yandexbot/3.0; +http://yandex.com/bots)
mozilla/5.0 (compatible; yandexbot/3.0; +http://yandex.com/bots)
mozilla/5.0 (compatible; yandexbot/3.0; +http://yandex.com/bots)
mozilla/5.0 (compatible; yandexbot/3.0; +http://yandex.com/bots)
mozilla/5.0 (compatible; yandexbot/3.0; +http://yandex.com/bots)
mozilla/5.0 (iphone; cpu iphone os 9_3 like mac os x) applewebkit/601.1.46 (khtml, like gecko) version/9.0 mobile/13e198 safari/601.1
mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/53.0.2785.143 safari/537.36
mozilla/5.0 (compatible; linkdexbot/2.2; +http://www.linkdex.com/bots/)
mozilla/5.0 (windows nt 6.1; wow64; rv:49.0) gecko/20100101 firefox/49.0
mozilla/5.0 (windows nt 6.1; wow64; rv:33.0) gecko/20100101 firefox/33.0
mozilla/5.0 (windows nt 6.1; wow64; rv:49.0) gecko/20100101 firefox/49.0
mozilla/5.0 (windows nt 6.1; wow64; rv:33.0) gecko/20100101 firefox/33.0
mozilla/5.0 (windows nt 6.1; wow64; rv:49.0) gecko/20100101 firefox/49.0
mozilla/5.0 (windows nt 6.1; wow64; rv:33.0) gecko/20100101 firefox/33.0
mozilla/5.0 (windows nt 6.1; wow64; rv:49.0) gecko/20100101 firefox/49.0
mozilla/5.0 (windows nt 6.1; wow64; rv:33.0) gecko/20100101 firefox/33.0
mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/53.0.2785.143 safari/537.36
mozilla/5.0 (windows nt 6.1; wow64) applewebkit/537.36 (khtml, like gecko) chrome/53.0.2785.143 safari/537.36
mozilla/5.0 (compatible; baiduspider/2.0; +http://www.baidu.com/search/spider.html)
zoombot (linkbot 1.0 http://suite.seozoom.it/bot.html)
mozilla/5.0 (windows nt 10.0; wow64) applewebkit/537.36 (khtml, like gecko) chrome/44.0.2403.155 safari/537.36 opr/31.0.1889.174
mozilla/5.0 (windows nt 10.0; wow64) applewebkit/537.36 (khtml, like gecko) chrome/44.0.2403.155 safari/537.36 opr/31.0.1889.174
sogou web spider/4.0(+http://www.sogou.com/docs/help/webmasters.htm#07)
mozilla/5.0 (windows nt 10.0; wow64) applewebkit/537.36 (khtml, like gecko) chrome/44.0.2403.155 safari/537.36 opr/31.0.1889.174
I'm not sure why you'd be getting subscript out of range unless your sheets weren't actually called Sheet1
or Sheet2
. When I rename my Sheet2
to Sheet_2
, I get that same problem.
In addition, some of your code seems the wrong way about (you paste before selecting the second sheet). This code works fine for me.
Sub OneCell()
Sheets("Sheet1").Select
Range("A1:A3").Copy
Sheets("Sheet2").Select
Range("b1:b3").Select
ActiveSheet.Paste
End Sub
If you don't want to know about what the sheets are called, you can use integer indexes as follows:
Sub OneCell()
Sheets(1).Select
Range("A1:A3").Copy
Sheets(2).Select
Range("b1:b3").Select
ActiveSheet.Paste
End Sub
This method orderBy
does not change the input array,
you have to assign the result to your array :
var chars = this.state.characters;
chars = _.orderBy(chars, ['name'],['asc']); // Use Lodash to sort array by 'name'
this.setState({characters: chars})
Short ES6 way with Airbnb code style
Exemple:
const obj = arr.reduce((prevObj, [key, value]) => ({ ...prevObj, [key]: value }), {});
I guess the answer you need is referenced here Python sets are not json serializable
Not all datatypes can be json serialized . I guess pickle module will serve your purpose.
You can see the log info in the console view of your IDE if you are not using any log4j properties to generate log file. You can define log4j.properties in your project so that those properties would be used to generate log file. A quick sample is listed below.
# Global logging configuration
log4j.rootLogger=DEBUG, stdout, R
# SQL Map logging configuration...
log4j.logger.com.ibatis=INFO
log4j.logger.com.ibatis.common.jdbc.SimpleDataSource=INFO
log4j.logger.com.ibatis.common.jdbc.ScriptRunner=INFO
log4j.logger.com.ibatis.SQLMap.engine.impl.SQL MapClientDelegate=INFO
log4j.logger.java.sql.Connection=INFO
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG
log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache.http=ERROR
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] (%F:%L) - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=MyLog.log
log4j.appender.R.MaxFileSize=50000KB
log4j.appender.R.Encoding=UTF-8
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%d %5p [%t] (%F\:%L) - %m%n
Override the values present in the outer UL with values in inner UL.
First you have to click on the report, Then View -> Report Data
My code, it work for me, I use localStorage
HTML5
$('#tabHistory a').click(function(e) {
e.preventDefault();
$(this).tab('show');
});
$("ul.nav-tabs#tabHistory > li > a").on("shown.bs.tab", function(e) {
var id = $(e.target).attr("href");
localStorage.setItem('selectedTab', id)
});
var selectedTab = localStorage.getItem('selectedTab');
$('#tabHistory a[href="' + selectedTab + '"]').tab('show');
You have to use start and $NUL for this in Windows PowerShell:
Type in this command assuming mySum
is the name of your application and 5
10
are command line arguments you are sending.
start .\mySum 5 10 > $NUL 2>&1
The start
command will start a detached process, a similar effect to &
. The /B
option prevents start from opening a new terminal window if the program you are running is a console application. and NUL
is Windows' equivalent of /dev/null
. The 2>&1
at the end will redirect stderr to stdout, which will all go to NUL
.
The final
keyword in java is used to restrict the user. The java final
keyword can be used in many context. Final can be:
The final
keyword can be applied with the variables, a final
variable that has no value, is called blank final
variable or uninitialized final
variable. It can be initialized in the constructor only. The blank final
variable can be static
also which will be initialized in the static
block only.
Java final variable:
If you make any variable as final
, you cannot change the value of final
variable(It will be constant).
Example of final
variable
There is a final variable speedlimit, we are going to change the value of this variable, but It can't be changed because final variable once assigned a value can never be changed.
class Bike9{
final int speedlimit=90;//final variable
void run(){
speedlimit=400; // this will make error
}
public static void main(String args[]){
Bike9 obj=new Bike9();
obj.run();
}
}//end of class
Java final class:
If you make any class as final
, you cannot extend it.
Example of final class
final class Bike{}
class Honda1 extends Bike{ //cannot inherit from final Bike,this will make error
void run(){
System.out.println("running safely with 100kmph");
}
public static void main(String args[]){
Honda1 honda= new Honda();
honda.run();
}
}
Java final method:
If you make any method as final, you cannot override it.
Example of final
method
(run() in Honda cannot override run() in Bike)
class Bike{
final void run(){System.out.println("running");}
}
class Honda extends Bike{
void run(){System.out.println("running safely with 100kmph");}
public static void main(String args[]){
Honda honda= new Honda();
honda.run();
}
}
shared from: http://www.javatpoint.com/final-keyword
SELECT group,MAX(date) as max_date
FROM table
WHERE checks>0
GROUP BY group
That works to get the max date..join it back to your data to get the other columns:
Select group,max_date,checks
from table t
inner join
(SELECT group,MAX(date) as max_date
FROM table
WHERE checks>0
GROUP BY group)a
on a.group = t.group and a.max_date = date
Inner join functions as the filter to get the max record only.
FYI, your column names are horrid, don't use reserved words for columns (group, date, table).
in eclipse
properties->c/c++Build->setting->GCC C++ linker->libraries in top part add "pthread"
Create your own BaseAdapter class and use it as following.
public class NotificationScreen extends Activity
{
@Override
protected void onCreate_Impl(Bundle savedInstanceState)
{
setContentView(R.layout.notification_screen);
ListView notificationList = (ListView) findViewById(R.id.notification_list);
NotiFicationListAdapter notiFicationListAdapter = new NotiFicationListAdapter();
notificationList.setAdapter(notiFicationListAdapter);
homeButton = (Button) findViewById(R.id.home_button);
}
}
Make your own BaseAdapter class and its separate xml file.
public class NotiFicationListAdapter extends BaseAdapter
{
private ArrayList<HashMap<String, String>> data;
private LayoutInflater inflater=null;
public NotiFicationListAdapter(ArrayList data)
{
this.data=data;
inflater =(LayoutInflater)baseActivity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public int getCount()
{
return data.size();
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
View vi=convertView;
if(convertView==null)
vi = inflater.inflate(R.layout.notification_list_item, null);
ImageView compleatImageView=(ImageView)vi.findViewById(R.id.complet_image);
TextView name = (TextView)vi.findViewById(R.id.game_name); // name
TextView email_id = (TextView)vi.findViewById(R.id.e_mail_id); // email ID
TextView notification_message = (TextView)vi.findViewById(R.id.notification_message); // notification message
compleatImageView.setBackgroundResource(R.id.address_book);
name.setText(data.getIndex(position));
email_id.setText(data.getIndex(position));
notification_message.setTextdata.getIndex(position));
return vi;
}
}
BaseAdapter xml file.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/inner_layout"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:layout_marginLeft="10dp"
android:layout_weight="4"
android:background="@drawable/list_view_frame"
android:gravity="center_vertical"
android:padding="5dp" >
<TextView
android:id="@+id/game_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Game name"
android:textColor="#FFFFFF"
android:textSize="15dip"
android:textStyle="bold"
android:typeface="sans" />
<TextView
android:id="@+id/e_mail_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/game_name"
android:layout_marginTop="1dip"
android:text="E-Mail Id"
android:textColor="#FFFFFF"
android:textSize="10dip" />
<TextView
android:id="@+id/notification_message"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/game_name"
android:layout_toRightOf="@id/e_mail_id"
android:paddingLeft="5dp"
android:text="Notification message"
android:textColor="#FFFFFF"
android:textSize="10dip" />
<ImageView
android:id="@+id/complet_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginBottom="30dp"
android:layout_marginRight="10dp"
android:src="@drawable/complete_tag"
android:visibility="invisible" />
</RelativeLayout>
Change it accordingly and use.
You can also do this .. rails g migration add_column_to_users email:string
then rake db:migrate also add :email attribute in your user controller ;
for more detail check out http://guides.rubyonrails.org/active_record_migrations.html
Parse the string into date, then compare using compareTo
, before
or after
Date d = new Date();
d.compareTo(anotherDate)
i.e
Date date1 = new SimpleDateFormat("MM/dd/yyyy").parse(date1string)
Date date2 = new SimpleDateFormat("MM/dd/yyyy").parse(date2string)
date1.compareTo(date2);
Copying the comment provided below by @MuhammadSaqib to complete this answer.
Returns the value 0 if the argument Date is equal to this Date; a value less than 0 if this Date is before the Date argument, and a value greater than 0 if this Date is after the Date argument. and NullPointerException - if anotherDate is null.
javadoc for compareTo http://docs.oracle.com/javase/6/docs/api/java/util/Date.html#compareTo(java.util.Date)
The problem I had that caused this error was that I was trying to insert null values into a NOT NULL column.
select * from shirts where find_in_set('1',colors) <> 0
Works for me
Here is a function I wrote to accomplish this based off of the previous answers.
CREATE FUNCTION dbo.RepetitiveReplace
(
@P_String VARCHAR(MAX),
@P_Pattern VARCHAR(MAX),
@P_ReplaceString VARCHAR(MAX),
@P_ReplaceLength INT = 1
)
RETURNS VARCHAR(MAX)
BEGIN
DECLARE @Index INT;
-- Get starting point of pattern
SET @Index = PATINDEX(@P_Pattern, @P_String);
while @Index > 0
begin
--replace matching charactger at index
SET @P_String = STUFF(@P_String, PATINDEX(@P_Pattern, @P_String), @P_ReplaceLength, @P_ReplaceString);
SET @Index = PATINDEX(@P_Pattern, @P_String);
end
RETURN @P_String;
END;
Originally I had a recursive function here which does not play well with sql server as it has a 32 nesting level limit which would result in an error like the below any time you attempt to make 32+ replacements with the function. Instead of trying to make a server level change to allow more nesting (which could be dangerous like allow never ending loops) switching to a while loop makes a lot more sense.
Maximum stored procedure, function, trigger, or view nesting level exceeded (limit 32).
if you want pressed image button then image should be change from normal to pressed
But I best way will be to customize the RadioButton and use them in a group. I have see an example of that. Sorry I did not remember that link.
but if you want to avoid that. You need to add this to your selector.xml
Once Done. Just got to your code and add this
public void onClick ( View v ) {
myImageButton.setSelected ( true ) ;
}
You will see the result. But you have to mange the states which button was recently press. So that you can set
myOLDImageButton.setSelected ( false ) ;
I suggest you to put all button reference in a array.
Use:
import color
class Color(color.Color):
...
If this were Python 2.x, you would also want to derive color.Color
from object
, to make it a new-style class:
class Color(object):
...
This is not necessary in Python 3.x.
You can refer this link for check if a image file exists with JavaScript.
checkImageExist.js:
var image = new Image(); var url_image = './ImageFolder/' + variable + '.jpg'; image.src = url_image; if (image.width == 0) { return `<img src='./ImageFolder/defaultImage.jpg'>`; } else { return `<img src='./ImageFolder/`+variable+`.jpg'`; } } ```
set /p line= < file.csv
echo %line%
it will return first line of your file in cmd Windows in variable %line%.
You can also do it without negative look ahead. You just need to add parentheses to that part of expression which you want to extract. This construction with parentheses is named group
.
Let's write python code:
string = """OK SYS 10 LEN 20 12 43
1233a.fdads.txt,23 /data/a11134/a.txt
3232b.ddsss.txt,32 /data/d13f11/b.txt
3452d.dsasa.txt,1234 /data/c13af4/f.txt
.
"""
search_result = re.search(r"^OK.*\n((.|\s)*).", string)
if search_result:
print(search_result.group(1))
Output is:
1233a.fdads.txt,23 /data/a11134/a.txt
3232b.ddsss.txt,32 /data/d13f11/b.txt
3452d.dsasa.txt,1234 /data/c13af4/f.txt
^OK.*\n
will find first line with OK statement, but we don't want to extract it so leave it without parentheses. Next is part which we want to capture: ((.|\s)*)
, so put it inside parentheses. And in the end of regexp we look for a dot .
, but we also don't want to capture it.
P.S: I find this answer is super helpful to understand power of groups. https://stackoverflow.com/a/3513858/4333811
I'd just like to add some comments from my personal experience (using both sagas and thunk):
Sagas are great to test:
Sagas are more powerful. All what you can do in one thunk's action creator you can also do in one saga, but not vice versa (or at least not easily). For example:
take
)cancel
, takeLatest
, race
)take
, takeEvery
, ...)Sagas also offers other useful functionality, which generalize some common application patterns:
channels
to listen on external event sources (e.g. websockets)fork
, spawn
)Sagas are great and powerful tool. However with the power comes responsibility. When your application grows you can get easily lost by figuring out who is waiting for the action to be dispatched, or what everything happens when some action is being dispatched. On the other hand thunk is simpler and easier to reason about. Choosing one or another depends on many aspects like type and size of the project, what types of side effect your project must handle or dev team preference. In any case just keep your application simple and predictable.
You need a /g
on there, like this:
var textTitle = "this is a test";_x000D_
var result = textTitle.replace(/ /g, '%20');_x000D_
_x000D_
console.log(result);
_x000D_
You can play with it here, the default .replace()
behavior is to replace only the first match, the /g
modifier (global) tells it to replace all occurrences.
You can have $(document).ready()
multiple times in a page. The code gets run in the sequence in which it appears.
You can use the $(window).load()
event for your code since this happens after the page is fully loaded and all the code in the various $(document).ready()
handlers have finished running.
$(window).load(function(){
//your code here
});
A little background information:
As said, if you want to have a dynamic collection of things, use a List<T>
. Internally, a List uses an array for storage too. That array has a fixed size just like any other array. Once an array is declared as having a size, it doesn't change. When you add an item to a List
, it's added to the array. Initially, the List
starts out with an array that I believe has a length of 16. When you try to add the 17th item to the List
, what happens is that a new array is allocated, that's (I think) twice the size of the old one, so 32 items. Then the content of the old array is copied into the new array. So while a List
may appear dynamic to the outside observer, internally it has to comply to the rules as well.
And as you might have guessed, the copying and allocation of the arrays isn't free so one should aim to have as few of those as possible and to do that you can specify (in the constructor of List
) an initial size of the array, which in a perfect scenario is just big enough to hold everything you want. However, this is micro-optimization and it's unlikely it will ever matter to you, but it's always nice to know what you're actually doing.
you can swipe the key and the value. For example
String[] k = {"Elena", "Thomas", "Hamilton", "Suzie", "Phil"};
int[] v = {341, 273, 278, 329, 445};
TreeMap<Integer,String>a=new TreeMap();
for (int i = 0; i < k.length; i++)
a.put(v[i],k[i]);
System.out.println(a.firstEntry().getValue()+"\t"+a.firstEntry().getKey());
a.remove(a.firstEntry().getKey());
System.out.println(a.firstEntry().getValue()+"\t"+a.firstEntry().getKey());
I've implemented a Kotlin + Rx version.
It's for brazilian's currency (e.g. 1,500.00 - 5,21 - 192,90) but you can easily adapt for other formats.
Hope someone else finds it helpful.
RxTextView
.textChangeEvents(fuel_price) // Observe text event changes
.filter { it.text().isNotEmpty() } // do not accept empty text when event first fires
.flatMap {
val onlyNumbers = Regex("\\d+").findAll(it.text()).fold(""){ acc:String,it:MatchResult -> acc.plus(it.value)}
Observable.just(onlyNumbers)
}
.distinctUntilChanged()
.map { it.trimStart('0') }
.map { when (it.length) {
1-> "00"+it
2-> "0"+it
else -> it }
}
.subscribe {
val digitList = it.reversed().mapIndexed { i, c ->
if ( i == 2 ) "${c},"
else if ( i < 2 ) c
else if ( (i-2)%3==0 ) "${c}." else c
}
val currency = digitList.reversed().fold(""){ acc,it -> acc.toString().plus(it) }
fuel_price.text = SpannableStringBuilder(currency)
fuel_price.setSelection(currency.length)
}
C++, O(n):
long long prod = accumulate(in.begin(), in.end(), 1LL, multiplies<int>());
transform(in.begin(), in.end(), back_inserter(res),
bind1st(divides<long long>(), prod));
As a slightly more concise solution to listing S3 objects when they might be truncated:
ListObjectsRequest request = new ListObjectsRequest().withBucketName(bucketName);
ObjectListing listing = null;
while((listing == null) || (request.getMarker() != null)) {
listing = s3Client.listObjects(request);
// do stuff with listing
request.setMarker(listing.getNextMarker());
}
For others who need to do this with just stock .NET and PowerShell (no additional SQL tools installed) here is the function that I use:
function Invoke-SQL {
param(
[string] $dataSource = ".\SQLEXPRESS",
[string] $database = "MasterData",
[string] $sqlCommand = $(throw "Please specify a query.")
)
$connectionString = "Data Source=$dataSource; " +
"Integrated Security=SSPI; " +
"Initial Catalog=$database"
$connection = new-object system.data.SqlClient.SQLConnection($connectionString)
$command = new-object system.data.sqlclient.sqlcommand($sqlCommand,$connection)
$connection.Open()
$adapter = New-Object System.Data.sqlclient.sqlDataAdapter $command
$dataset = New-Object System.Data.DataSet
$adapter.Fill($dataSet) | Out-Null
$connection.Close()
$dataSet.Tables
}
I have been using this so long I don't know who wrote which parts. This was distilled from others' examples, but simplified to be clear and just what is needed without extra dependencies or features.
I use and share this often enough that I have turned this into a script module on GitHub so that you can now go to your modules directory and execute git clone https://github.com/ChrisMagnuson/InvokeSQL
and from that point forward invoke-sql will automatically be loaded when you go to use it (assuming your using PowerShell v3 or later).
This works for me in python 2.7
select some_date::DATE from some_table;
My gulp file produces a final compiled-bundle-min.js, hope this helps someone.
//Gulpfile.js
var gulp = require("gulp");
var watch = require("gulp-watch");
var concat = require("gulp-concat");
var rename = require("gulp-rename");
var uglify = require("gulp-uglify");
var del = require("del");
var minifyCSS = require("gulp-minify-css");
var copy = require("gulp-copy");
var bower = require("gulp-bower");
var sourcemaps = require("gulp-sourcemaps");
var path = {
src: "bower_components/",
lib: "lib/"
}
var config = {
jquerysrc: [
path.src + "jquery/dist/jquery.js",
path.src + "jquery-validation/dist/jquery.validate.js",
path.src + "jquery-validation/dist/jquery.validate.unobtrusive.js"
],
jquerybundle: path.lib + "jquery-bundle.js",
ngsrc: [
path.src + "angular/angular.js",
path.src + "angular-route/angular-route.js",
path.src + "angular-resource/angular-resource.js"
],
ngbundle: path.lib + "ng-bundle.js",
//JavaScript files that will be combined into a Bootstrap bundle
bootstrapsrc: [
path.src + "bootstrap/dist/js/bootstrap.js"
],
bootstrapbundle: path.lib + "bootstrap-bundle.js"
}
// Synchronously delete the output script file(s)
gulp.task("clean-scripts", function (cb) {
del(["lib","dist"], cb);
});
//Create a jquery bundled file
gulp.task("jquery-bundle", ["clean-scripts", "bower-restore"], function () {
return gulp.src(config.jquerysrc)
.pipe(concat("jquery-bundle.js"))
.pipe(gulp.dest("lib"));
});
//Create a angular bundled file
gulp.task("ng-bundle", ["clean-scripts", "bower-restore"], function () {
return gulp.src(config.ngsrc)
.pipe(concat("ng-bundle.js"))
.pipe(gulp.dest("lib"));
});
//Create a bootstrap bundled file
gulp.task("bootstrap-bundle", ["clean-scripts", "bower-restore"], function () {
return gulp.src(config.bootstrapsrc)
.pipe(concat("bootstrap-bundle.js"))
.pipe(gulp.dest("lib"));
});
// Combine and the vendor files from bower into bundles (output to the Scripts folder)
gulp.task("bundle-scripts", ["jquery-bundle", "ng-bundle", "bootstrap-bundle"], function () {
});
//Restore all bower packages
gulp.task("bower-restore", function () {
return bower();
});
//build lib scripts
gulp.task("compile-lib", ["bundle-scripts"], function () {
return gulp.src("lib/*.js")
.pipe(sourcemaps.init())
.pipe(concat("compiled-bundle.js"))
.pipe(gulp.dest("dist"))
.pipe(rename("compiled-bundle.min.js"))
.pipe(uglify())
.pipe(sourcemaps.write("./"))
.pipe(gulp.dest("dist"));
});
panel.setStyle("-fx-background-color: #FFFFFF;");
Here two more methods:
Linux: Mysql view version: from PHP
From a PHP function, we can see the version used:
mysql_get_server_info ([resource $ link_identifier = NULL]): string
Linux: Mysql view version: Package version
For RedHat / CentOS operating systems:
rpm -qa | grep mysql
For Debian / Ubuntu operating systems:
rpm -qa | grep mysql
Extracted from: https://www.sysadmit.com/2019/03/linux-mysql-ver-version.html
This code computes the occurrences of all columns, and prints a sorted report for each of them:
# columnvalues.pl
while (<>) {
@Fields = split /\s+/;
for $i ( 0 .. $#Fields ) {
$result[$i]{$Fields[$i]}++
};
}
for $j ( 0 .. $#result ) {
print "column $j:\n";
@values = keys %{$result[$j]};
@sorted = sort { $result[$j]{$b} <=> $result[$j]{$a} || $a cmp $b } @values;
for $k ( @sorted ) {
print " $k $result[$j]{$k}\n"
}
}
Save the text as columnvalues.pl
Run it as: perl columnvalues.pl files*
In the top-level while loop:
* Loop over each line of the combined input files
* Split the line into the @Fields array
* For every column, increment the result array-of-hashes data structure
In the top-level for loop:
* Loop over the result array
* Print the column number
* Get the values used in that column
* Sort the values by the number of occurrences
* Secondary sort based on the value (for example b vs g vs m vs z)
* Iterate through the result hash, using the sorted list
* Print the value and number of each occurrence
column 0:
a 3
z 3
t 1
v 1
w 1
column 1:
d 3
r 2
b 1
g 1
m 1
z 1
column 2:
c 4
a 3
e 2
If your input files are .csv, change /\s+/
to /,/
In an ugly contest, Perl is particularly well equipped.
This one-liner does the same:
perl -lane 'for $i (0..$#F){$g[$i]{$F[$i]}++};END{for $j (0..$#g){print "$j:";for $k (sort{$g[$j]{$b}<=>$g[$j]{$a}||$a cmp $b} keys %{$g[$j]}){print " $k $g[$j]{$k}"}}}' files*
I agree with @GregoryKlopper that the right way to solve the general problem of finding Waldo (or any object of interest) in an arbitrary image would be to train a supervised machine learning classifier. Using many positive and negative labeled examples, an algorithm such as Support Vector Machine, Boosted Decision Stump or Boltzmann Machine could likely be trained to achieve high accuracy on this problem. Mathematica even includes these algorithms in its Machine Learning Framework.
The two challenges with training a Waldo classifier would be:
A quick Google image search turns up some good data -- I'm going to have a go at collecting some training examples and coding this up right now!
However, even a machine learning approach (or the rule-based approach suggested by @iND) will struggle for an image like the Land of Waldos!
For HTTP things, the current choice should be: Requests- HTTP for Humans
Here is one example that worked for me.
find <mainfolder path> -name '*myfiles.java' | xargs -n 1 basename
use javascript inbuild functions escape and unescape
for example
var escapedData = escape("hel'lo");
output = "%27hel%27lo%27" which can be used in the attribute.
again to read the value from the attr
var unescapedData = unescape("%27hel%27lo%27")
output = "'hel'lo'"
This will be helpful if you have huge json stringify data to be used in the attribute
header("Content-type: image/png");
echo file_get_contents(".../image.png");
The first step is retrieve the image from a particular location and then store it on to a variable for that purpose we use the function file_get_contents() with the destination as the parameter. Next we set the content type of the output page as image type using the header file. Finally we print the retrieved file using echo.
My task was to implement ListView
which expands when clicked. The additional space shows EditText
where you can input some text. App should be functional on 2.2+ (up to 4.2.2 at time of writing this)
I tried numerous solutions from this post and others I could find; tested them on 2.2 up to 4.2.2 devices. None of solutions was satisfactionary on all devices 2.2+, each solution presented with different problems.
I wanted to share my final solution :
android:descendantFocusability="afterDescendants"
setItemsCanFocus(true);
android:windowSoftInputMode="adjustResize"
Many people suggest adjustPan
but adjustResize
gives much better ux imho, just test this in your case. With adjustPan
you will get bottom listitems obscured for instance. Docs suggest that ("This is generally less desirable than resizing"). Also on 4.0.4 after user starts typing on soft keyboard the screen pans to the top.adjustResize
there are some problems with EditText focus. The solution is to apply rjrjr solution from this thread. It looks scarry but it is not. And it works. Just try it.Additional 5. Due to adapter being refreshed (because of view resize) when EditText
gains focus on pre HoneyComb versions I found an issue with reversed views:
getting View for ListView item / reverse order on 2.2; works on 4.0.3
If you are doing some animations you might want to change behaviour to adjustPan
for pre-honeycomb versions so that resize doesnt fire and adapter doesn't refresh the views. You just need to add something like this
if(android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.HONEYCOMB)
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
All this gives acceptable ux on 2.2 - 4.2.2 devices. Hope it will save people some time as it took me at least several hours to come to this conclusion.
MVC, MVP, MVVM
MVC (old one)
MVP (more modular because of its low-coupling. Presenter is a mediator between the View and Model)
MVVM (You already have two-way binding between VM and UI component, so it is more automated than MVP)
One important thing to note about ng-if and ng-show is that when using form controls it is better to use ng-if
because it completely removes the element from the dom.
This difference is important because if you create an input field with required="true"
and then set ng-show="false"
to hide it, Chrome will throw the following error when the user tries to submit the form:
An invalid form control with name='' is not focusable.
The reason being the input field is present and it is required
but since it is hidden Chrome cannot focus on it. This can literally break your code as this error halts script execution. So be careful!
A CASE
statement is an expression, just like a boolean comparison. That means the 'AND' needs to go before the 'CASE' statement, not within it.:
Select * From Times
WHERE (StartDate <= @Date) AND (EndDate >= @Date)
AND -- Added the "AND" here
CASE WHEN @day = 'Monday' THEN (Monday = 1) -- Removed "AND"
WHEN @day = 'Tuesday' THEN (Tuesday = 1) -- Removed "AND"
ELSE AND (Wednesday = 1)
END
You need to do it through an ArrayAdapter
which will adapt your ArrayList (or any other collection) to your items in your layout (ListView, Spinner etc.).
This is what the Android developer guide says:
A
ListAdapter
that manages aListView
backed by an array of arbitrary objects. By default this class expects that the provided resource id references a singleTextView
. If you want to use a more complex layout, use the constructors that also takes a field id. That field id should reference aTextView
in the larger layout resource.However the
TextView
is referenced, it will be filled with thetoString()
of each object in the array. You can add lists or arrays of custom objects. Override thetoString()
method of your objects to determine what text will be displayed for the item in the list.To use something other than
TextViews
for the array display, for instanceImageViews
, or to have some of data besidestoString()
results fill the views, overridegetView(int, View, ViewGroup)
to return the type of view you want.
So your code should look like:
public class YourActivity extends Activity {
private ListView lv;
public void onCreate(Bundle saveInstanceState) {
setContentView(R.layout.your_layout);
lv = (ListView) findViewById(R.id.your_list_view_id);
// Instanciating an array list (you don't need to do this,
// you already have yours).
List<String> your_array_list = new ArrayList<String>();
your_array_list.add("foo");
your_array_list.add("bar");
// This is the array adapter, it takes the context of the activity as a
// first parameter, the type of list view as a second parameter and your
// array as a third parameter.
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
this,
android.R.layout.simple_list_item_1,
your_array_list );
lv.setAdapter(arrayAdapter);
}
}
In [1]: x = "anmxcjkwnekmjkldm!^%@(*)#_+@78935014712jksdfs"
In [2]: len(x)
Out[2]: 45
Now, For positive index ranges for x is from 0 to 44 (i.e. length - 1)
In [3]: x[0]
Out[3]: 'a'
In [4]: x[45]
---------------------------------------------------------------------------
IndexError Traceback (most recent call last)
/home/<ipython console> in <module>()
IndexError: string index out of range
In [5]: x[44]
Out[5]: 's'
For Negative index, index ranges from -1 to -45
In [6]: x[-1]
Out[6]: 's'
In [7]: x[-45]
Out[7]: 'a
For negative index, negative [length -1] i.e. the last valid value of positive index will give second list element as the list is read in reverse order,
In [8]: x[-44]
Out[8]: 'n'
Other, index's examples,
In [9]: x[1]
Out[9]: 'n'
In [10]: x[-9]
Out[10]: '7'
You can disable the caching by doing the following:
NSURLCache *sharedCache = [[NSURLCache alloc] initWithMemoryCapacity:0 diskCapacity:0 diskPath:nil];
[NSURLCache setSharedURLCache:sharedCache];
[sharedCache release];
ARC:
NSURLCache *sharedCache = [[NSURLCache alloc] initWithMemoryCapacity:0 diskCapacity:0 diskPath:nil];
[NSURLCache setSharedURLCache:sharedCache];
This solution is for Vue-2 users:
vue-2
if you don't like to keep your files in static
folder (relevant info), orvue-2
& vue-cli-3
if you don't like to keep your files in public
folder (static
folder is renamed to public
):The simple solution is :)
<img src="@/assets/img/clear.gif" /> // just do this:
<img :src="require(`@/assets/img/clear.gif`)" // or do this:
<img :src="require(`@/assets/img/${imgURL}`)" // if pulling from: data() {return {imgURL: 'clear.gif'}}
If you like to keep your static images in static/assets/img
or public/assets/img
folder, then just do:
<img src="./assets/img/clear.gif" />
<img src="/assets/img/clear.gif" /> // in some case without dot ./
This is an old post, but I thought I would add another method to do this:
var win = window.open("http://www.google.com");
var winClosed = setInterval(function () {
if (win.closed) {
clearInterval(winClosed);
foo(); //Call your function here
}
}, 250);
You don't have to modify the contents or use any event handlers from the child window.
Let's say that you have:
#include <iostream>
double foo(double x)
{
asm("# MyTag BEGIN"); // <- asm comment,
// used later to locate piece of code
double y = 2 * x + 1;
asm("# MyTag END");
return y;
}
int main()
{
std::cout << foo(2);
}
To get assembly code using gcc you can do:
g++ prog.cpp -c -S -o - -masm=intel | c++filt | grep -vE '\s+\.'
c++filt
demangles symbols
grep -vE '\s+\.'
removes some useless information
Now if you want to visualize the tagged part, simply use:
g++ prog.cpp -c -S -o - -masm=intel | c++filt | grep -vE '\s+\.' | grep "MyTag BEGIN" -A 20
With my computer I get:
# MyTag BEGIN
# 0 "" 2
#NO_APP
movsd xmm0, QWORD PTR -24[rbp]
movapd xmm1, xmm0
addsd xmm1, xmm0
addsd xmm0, xmm1
movsd QWORD PTR -8[rbp], xmm0
#APP
# 9 "poub.cpp" 1
# MyTag END
# 0 "" 2
#NO_APP
movsd xmm0, QWORD PTR -8[rbp]
pop rbp
ret
.LFE1814:
main:
.LFB1815:
push rbp
mov rbp, rsp
A more friendly approach is to use: Compiler Explorer
Not sure why no one mentioned this before -
echo mb_strimwidth("Hello World", 0, 10, "...");
// output: "Hello W..."
More info check - http://php.net/manual/en/function.mb-strimwidth.php
Try the DocumentCompleted Event
webBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(webBrowser_DocumentCompleted);
void webBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
webBrowser.Document.GetElementById("product").SetAttribute("value", product);
webBrowser.Document.GetElementById("version").SetAttribute("value", version);
webBrowser.Document.GetElementById("commit").InvokeMember("click");
}
DELETE Table1
FROM Table1
INNER JOIN Table2 ON Table1.ID = Table2.ID
One liner (Linux)
unzip -p mylib.jar META-INF/MANIFEST.MF
This prints the content of MANIFEST.MF
file to stdout (hopefully there is one in your jar file :)
Depending on what built your package, you will find the JDK version in Created-By
or Build-Jdk
key.
Dim
and Private
work the same, though the common convention is to use Private
at the module level, and Dim
at the Sub/Function level. Public
and Global
are nearly identical in their function, however Global
can only be used in standard modules, whereas Public
can be used in all contexts (modules, classes, controls, forms etc.) Global
comes from older versions of VB and was likely kept for backwards compatibility, but has been wholly superseded by Public
.
In case someone need to handle a dynamic object come from Json, I has modified Seth Reno answer to handle dynamic object deserialized from NewtonSoft.Json.JObjcet.
public static bool PropertyExists(dynamic obj, string name)
{
if (obj == null) return false;
if (obj is ExpandoObject)
return ((IDictionary<string, object>)obj).ContainsKey(name);
if (obj is IDictionary<string, object> dict1)
return dict1.ContainsKey(name);
if (obj is IDictionary<string, JToken> dict2)
return dict2.ContainsKey(name);
return obj.GetType().GetProperty(name) != null;
}
I don't know how stubhub's api works, but generally it should look like this:
s = requests.Session()
data = {"login":"my_login", "password":"my_password"}
url = "http://example.net/login"
r = s.post(url, data=data)
Now your session contains cookies provided by login form. To access cookies of this session simply use
s.cookies
Any further actions like another requests will have this cookie
although Response::json()
is not getting popular of recent, that does not stop you and Me from using it.
In fact you don't need any facade to use it,
instead of:
$response = Response::json($messages, 200);
Use this:
$response = \Response::json($messages, 200);
with the slash, you are sure good to go.
For anyone who works in VB.NET
Try
Catch ex As DbEntityValidationException
For Each a In ex.EntityValidationErrors
For Each b In a.ValidationErrors
Dim st1 As String = b.PropertyName
Dim st2 As String = b.ErrorMessage
Next
Next
End Try
It isn't possible as DateTime is immutable. The same discussion is available here: How to change time in datetime?
Balabaster's answer is correct if you want to remove all instances of the element. If you want to remove only the first one, you would do something like this:
int[] numbers = { 1, 3, 4, 9, 2, 4 };
int numToRemove = 4;
int firstFoundIndex = Array.IndexOf(numbers, numToRemove);
if (numbers >= 0)
{
numbers = numbers.Take(firstFoundIndex).Concat(numbers.Skip(firstFoundIndex + 1)).ToArray();
}
Yes it is valid according to xhtml1-strict.dtd
. The following XHTML passes the validation:
<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Test</title>
</head>
<body>
<ul>
<li><div>test</div></li>
</ul>
</body>
</html>
Use-
<span ng-bind-html="myContent"></span>
You need to tell angular to not escape it.
I have one my old function for that:
function putinplace($string=NULL, $put=NULL, $position=false)
{
$d1=$d2=$i=false;
$d=array(strlen($string), strlen($put));
if($position > $d[0]) $position=$d[0];
for($i=$d[0]; $i >= $position; $i--) $string[$i+$d[1]]=$string[$i];
for($i=0; $i<$d[1]; $i++) $string[$position+$i]=$put[$i];
return $string;
}
// Explanation
$string='My dog dont love postman'; // string
$put="'"; // put ' on position
$position=10; // number of characters (position)
print_r( putinplace($string, $put, $position) ); //RESULT: My dog don't love postman
This is a small powerful function that performs its job flawlessly.
Maybe not what you want if you need to avoid hard-coding size values, but sometimes I use a "shim" (Separator) for this:
<Separator Width="42"></Separator>
Here is obscure solution: define macro function:
#define Z(x) \
(x==0 ? 'A' : \
(x==1 ? 'B' : \
(x==2 ? 'C' : '\0')))
char x[] = { Z(0), Z(1), Z(2) };
Google Launches Android Studio 2.0 With Improved Android Emulator And New Instant Run Feature
New Features in Android Studio 2.0 :
1.Instant Run: Faster Build & Deploy
You can quickly see your changes running on your device or emulator.
Enable Instant Run follow this steps:
1.open Settings/Preferences
2.go to Build, Execution, Deployment
3.Instant Run. Click on Enable Instant
Please see this video of Instant Run --> Instant Run
2.GPU Profiler
For developers who build graphics-intensive apps and games, the Studio now also includes a new GPU profiler. This will allow developers to see exactly what’s happening every time the screen draws a new image to trace performance issues.
click here for more details about the GPU Profiler tool
Getting Started Guide for Android Emulator Preview
For more detail about android 2.0 Biggest and best update of 2015 you can see very good article Author by @nuuneoi :
First Look at Android Emulator 2.0, the biggest and the best update yet in years
Here is the sample on what worked for me. I think that put method is needed in entity class to map sql columns to java class attributes.
//simpleExample
Query query = em.createNativeQuery(
"SELECT u.name,s.something FROM user u, someTable s WHERE s.user_id = u.id",
NameSomething.class);
List list = (List<NameSomething.class>) query.getResultList();
Entity class:
@Entity
public class NameSomething {
@Id
private String name;
private String something;
// getters/setters
/**
* Generic put method to map JPA native Query to this object.
*
* @param column
* @param value
*/
public void put(Object column, Object value) {
if (((String) column).equals("name")) {
setName(String) value);
} else if (((String) column).equals("something")) {
setSomething((String) value);
}
}
}
set
and get
API has been deprecated *The following code should only be used for version socket.io < 0.9
See: http://socket.io/docs/migrating-from-0-9/
It can be done through the handshake/authorization mechanism.
var cookie = require('cookie');
io.set('authorization', function (data, accept) {
// check if there's a cookie header
if (data.headers.cookie) {
// if there is, parse the cookie
data.cookie = cookie.parse(data.headers.cookie);
// note that you will need to use the same key to grad the
// session id, as you specified in the Express setup.
data.sessionID = data.cookie['express.sid'];
} else {
// if there isn't, turn down the connection with a message
// and leave the function.
return accept('No cookie transmitted.', false);
}
// accept the incoming connection
accept(null, true);
});
All the attributes, that are assigned to the data object are now accessible through the handshake attribute of the socket.io connection object.
io.sockets.on('connection', function (socket) {
console.log('sessionID ' + socket.handshake.sessionID);
});
If you don't have an id on the image but have a parent div this is also a technique you can use.
<div id="myDiv"><img src="http://www.example.com/image.png"></div>
var myVar = document.querySelectorAll('#myDiv img')[0].src
Here is slightly modified version. Changes are noted as code commentary.
BEGIN TRANSACTION
declare @cnt int
declare @test nvarchar(128)
-- variable to hold table name
declare @tableName nvarchar(255)
declare @cmd nvarchar(500)
-- local means the cursor name is private to this code
-- fast_forward enables some speed optimizations
declare Tests cursor local fast_forward for
SELECT COLUMN_NAME, TABLE_NAME
FROM INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_NAME LIKE 'pct%'
AND TABLE_NAME LIKE 'TestData%'
open Tests
-- Instead of fetching twice, I rather set up no-exit loop
while 1 = 1
BEGIN
-- And then fetch
fetch next from Tests into @test, @tableName
-- And then, if no row is fetched, exit the loop
if @@fetch_status <> 0
begin
break
end
-- Quotename is needed if you ever use special characters
-- in table/column names. Spaces, reserved words etc.
-- Other changes add apostrophes at right places.
set @cmd = N'exec sp_rename '''
+ quotename(@tableName)
+ '.'
+ quotename(@test)
+ N''','''
+ RIGHT(@test,LEN(@test)-3)
+ '_Pct'''
+ N', ''column'''
print @cmd
EXEC sp_executeSQL @cmd
END
close Tests
deallocate Tests
ROLLBACK TRANSACTION
--COMMIT TRANSACTION
If you need to print it and don't need a newline, you can use:
printf $(md5sum filename)
Assuming your WebSocket server is listening on the same port as from which the page is being requested, I would suggest:
function createWebSocket(path) {
var protocolPrefix = (window.location.protocol === 'https:') ? 'wss:' : 'ws:';
return new WebSocket(protocolPrefix + '//' + location.host + path);
}
Then, for your case, call it as follows:
var socket = createWebSocket(location.pathname + '/to/ws');
H2CO3 is right, you can use a makefile with the CXXFLAGS set with -std=c++11 A makefile is a simple text file with instructions about how to compile your program. Create a new file named Makefile (with a capital M). To automatically compile your code just type the make command in a terminal. You may have to install make.
Here's a simple one :
CXX=clang++
CXXFLAGS=-g -std=c++11 -Wall -pedantic
BIN=prog
SRC=$(wildcard *.cpp)
OBJ=$(SRC:%.cpp=%.o)
all: $(OBJ)
$(CXX) -o $(BIN) $^
%.o: %.c
$(CXX) $@ -c $<
clean:
rm -f *.o
rm $(BIN)
It assumes that all the .cpp files are in the same directory as the makefile. But you can easily tweak your makefile to support a src, include and build directories.
Edit : I modified the default c++ compiler, my version of g++ isn't up-to-date. With clang++ this makefile works fine.
If each user has its own SQL Server login you could try this
select
so.name, su.name, so.crdate
from
sysobjects so
join
sysusers su on so.uid = su.uid
order by
so.crdate
Function adjusted to execute without warnings:
function url(){
if(isset($_SERVER['HTTPS'])){
$protocol = ($_SERVER['HTTPS'] && $_SERVER['HTTPS'] != "off") ? "https" : "http";
}
else{
$protocol = 'http';
}
return $protocol . "://" . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
}
From site PostgreSQL, of date 02/04/2016 (https://jdbc.postgresql.org/download.html):
"This is the current version of the driver. Unless you have unusual requirements (running old applications or JVMs), this is the driver you should be using. It supports Postgresql 7.2 or newer and requires a 1.6 or newer JVM. It contains support for SSL and the javax.sql package. If you are using the 1.6 then you should use the JDBC4 version. If you are using 1.7 then you should use the JDBC41 version. If you are using 1.8 then you should use the JDBC42 versionIf you are using a java version older than 1.6 then you will need to use a JDBC3 version of the driver, which will by necessity not be current"
The Character
class of Java API has various functions you can use.
You can convert your char to lowercase at both sides:
Character.toLowerCase(name1.charAt(i)) == Character.toLowerCase(name2.charAt(j))
There are also a methods you can use to verify if the letter is uppercase or lowercase:
Character.isUpperCase('P')
Character.isLowerCase('P')
For me the solution of the problem was to configure xdebug properly. I added in the php.ini this lines of code :
zend_extension = "C:\xampp\php\ext\php_xdebug.dll"
xdebug.remote_enable = 1
xdebug.show_local_vars = 1
The important part I was missing : xdebug.remote_enable = 1
I'm told that it's bad practice to overuse it, but you can always add !important
after your code to prioritize the css properties value.
.p{height:400px!important;}
This is an interesting question, and I started thinking about how I would implement something like this.
I came up with this (fiddle);
Basically, instead of trying to call a directive from a controller, I created a module to house all the popdown logic:
var PopdownModule = angular.module('Popdown', []);
I put two things in the module, a factory
for the API which can be injected anywhere, and the directive
for defining the behavior of the actual popdown element:
The factory just defines a couple of functions success
and error
and keeps track of a couple of variables:
PopdownModule.factory('PopdownAPI', function() {
return {
status: null,
message: null,
success: function(msg) {
this.status = 'success';
this.message = msg;
},
error: function(msg) {
this.status = 'error';
this.message = msg;
},
clear: function() {
this.status = null;
this.message = null;
}
}
});
The directive gets the API injected into its controller, and watches the api for changes (I'm using bootstrap css for convenience):
PopdownModule.directive('popdown', function() {
return {
restrict: 'E',
scope: {},
replace: true,
controller: function($scope, PopdownAPI) {
$scope.show = false;
$scope.api = PopdownAPI;
$scope.$watch('api.status', toggledisplay)
$scope.$watch('api.message', toggledisplay)
$scope.hide = function() {
$scope.show = false;
$scope.api.clear();
};
function toggledisplay() {
$scope.show = !!($scope.api.status && $scope.api.message);
}
},
template: '<div class="alert alert-{{api.status}}" ng-show="show">' +
' <button type="button" class="close" ng-click="hide()">×</button>' +
' {{api.message}}' +
'</div>'
}
})
Then I define an app
module that depends on Popdown
:
var app = angular.module('app', ['Popdown']);
app.controller('main', function($scope, PopdownAPI) {
$scope.success = function(msg) { PopdownAPI.success(msg); }
$scope.error = function(msg) { PopdownAPI.error(msg); }
});
And the HTML looks like:
<html ng-app="app">
<body ng-controller="main">
<popdown></popdown>
<a class="btn" ng-click="success('I am a success!')">Succeed</a>
<a class="btn" ng-click="error('Alas, I am a failure!')">Fail</a>
</body>
</html>
I'm not sure if it's completely ideal, but it seemed like a reasonable way to set up communication with a global-ish popdown directive.
Again, for reference, the fiddle.
To simply subtract one day from todays date:
Select DATEADD(day,-1,GETDATE())
(original post used -7 and was incorrect)
Edit: This is out of date, see @Merlin's answer.
[False]
, being a nonempty list, is not the same as False
. You should write:
test = df.sort('one', ascending=False)
Please make use of the code below to display images inline:
<img style='vertical-align:middle;' src='somefolder/icon.gif'>
<div style='vertical-align:middle; display:inline;'>
Your text here
</div>
I think using this will be the easiest
new Uri("pack://application:,,/FolderIcon/" + youImageICO);
or this code will work on any machine that if your folder is in your root project if you want to change it... just change this section @"..\"
public static string bingPathToAppDir(string localPath)
{
string currentDir = Environment.CurrentDirectory;
DirectoryInfo directory = new DirectoryInfo(
Path.GetFullPath(Path.Combine(currentDir, @"..\..\" + localPath)));
return directory.ToString();
}
You mean you want to add a new row and only put data in a certain column? Try the following:
var row = dataTable.NewRow();
row[myColumn].Value = "my new value";
dataTable.Add(row);
As it is a data table, though, there will always be data of some kind in every column. It just might be DBNull.Value
instead of whatever data type you imagine it would be.
In theory SMTP can be handled by either TCP, UDP, or some 3rd party protocol.
As defined in RFC 821, RFC 2821, and RFC 5321:
SMTP is independent of the particular transmission subsystem and requires only a reliable ordered data stream channel.
In addition, the Internet Assigned Numbers Authority has allocated port 25 for both TCP and UDP for use by SMTP.
In practice however, most if not all organizations and applications only choose to implement the TCP protocol. For example, in Microsoft's port listing port 25 is only listed for TCP and not UDP.
The big difference between TCP and UDP that makes TCP ideal here is that TCP checks to make sure that every packet is received and re-sends them if they are not whereas UDP will simply send packets and not check for receipt. This makes UDP ideal for things like streaming video where every single packet isn't as important as keeping a continuous flow of packets from the server to the client.
Considering SMTP, it makes more sense to use TCP over UDP. SMTP is a mail transport protocol, and in mail every single packet is important. If you lose several packets in the middle of the message the recipient might not even receive the message and if they do they might be missing key information. This makes TCP more appropriate because it ensures that every packet is delivered.
This can also occur if you do something stupid (like I did) and place the api url in the "Project Url" (e.g. http://localhost:59088/api/Product) on the Project Properties->Web tab instead of specifying it in the "Specific Page" text box. This causes Visual Studio to go ahead and create an APP called ProjectName/api/Product, and this will expect a default page. The only way to undo this is to go to C:\Program Files (x86)\IIS Express and use appcmd.exe to delete it like so
>.\appcmd.exe delete APP "ProjectName/api/Product"
In javascript use the preventDefault() method of the event args parameter.
<a href="no-script.html">Download now!</a>
$('a').click(function(e) {
e.preventDefault(); // stop the browser from following
window.location.href = 'downloads/file.pdf';
});
No it's not always wrong. If your loop condition is "while we haven't tried to read past end of file" then you use while (!feof(f))
. This is however not a common loop condition - usually you want to test for something else (such as "can I read more"). while (!feof(f))
isn't wrong, it's just used wrong.
cursor.execute(sql,array)
Only takes two arguments.
It will iterate the "array"-object and match ? in the sql-string.
(with sanity checks to avoid sql-injection)
Simple:
>>> import string
>>> string.ascii_letters
'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
>>> import random
>>> random.choice(string.ascii_letters)
'j'
string.ascii_letters
returns a string containing the lower case and upper case letters according to the current locale.
random.choice
returns a single, random element from a sequence.
This is how it works: Lets suppose the administrator is looking for records of student
Robert'); DROP TABLE STUDENTS; --
Since the admin account has high privileges deleting the table from this account is possible.
The code to retrieve user name from request is
Now the query would be something like this (to search the student table)
String query="Select * from student where username='"+student_name+"'";
statement.executeQuery(query); //Rest of the code follows
The resultant query becomes
Select * from student where username='Robert'); DROP TABLE STUDENTS; --
Since the user input is not sanitized, The above query has is manipulated into 2 parts
Select * from student where username='Robert');
DROP TABLE STUDENTS; --
The double dash (--) will just comment out remaining part of the query.
This is dangerous as it can nullify password authentication, if present
The first one will do the normal search.
The second one will drop the table student if the account has sufficient privileges (Generally the school admin account will run such query and will have the privileges talked about above).
Below connection string is working
import pandas as pd
import pyodbc as odbc
sql_conn = odbc.connect('DRIVER={ODBC Driver 13 for SQL Server};SERVER=SERVER_NAME;DATABASE=DATABASE_NAME;UID=USERNAME;PWD=PASSWORD;')
query = "SELECT * FROM admin.TABLE_NAME"
df = pd.read_sql(query, sql_conn)
df.head()
Windows.System.UserProfile.GlobalizationPreferences.Languages[0]
This is the correct way to obtain the currently set system language. System language setting is completely different than culture setting from which you all want to get the language.
For example: User may use "en-GB" language along with "en-US" culture at the same time. Using CurrentCulture and other cultures you will get "en-US", hope you get the difference (that may be innoticable with GB-US, but with other languages?)
Reading Hadley and Arun's answers one gets the impression that those who prefer dplyr
's syntax would have in some cases to switch over to data.table
or compromise for long running times.
But as some have already mentioned, dplyr
can use data.table
as a backend. This is accomplished using the dtplyr
package which recently had it's version 1.0.0 release. Learning dtplyr
incurs practically zero additional effort.
When using dtplyr
one uses the function lazy_dt()
to declare a lazy data.table, after which standard dplyr
syntax is used to specify operations on it. This would look something like the following:
new_table <- mtcars2 %>%
lazy_dt() %>%
filter(wt < 5) %>%
mutate(l100k = 235.21 / mpg) %>% # liters / 100 km
group_by(cyl) %>%
summarise(l100k = mean(l100k))
new_table
#> Source: local data table [?? x 2]
#> Call: `_DT1`[wt < 5][, `:=`(l100k = 235.21/mpg)][, .(l100k = mean(l100k)),
#> keyby = .(cyl)]
#>
#> cyl l100k
#> <dbl> <dbl>
#> 1 4 9.05
#> 2 6 12.0
#> 3 8 14.9
#>
#> # Use as.data.table()/as.data.frame()/as_tibble() to access results
The new_table
object is not evaluated until calling on it as.data.table()
/as.data.frame()
/as_tibble()
at which point the underlying data.table
operation is executed.
I've recreated a benchmark analysis done by data.table
author Matt Dowle back at December 2018 which covers the case of operations over large numbers of groups. I've found that dtplyr
indeed enables for the most part those who prefer the dplyr
syntax to keep using it while enjoying the speed offered by data.table
.
Code for A Breadth First Search to make sure both nodes are in the tree. Only then move forward with the LCA search. Please comment if you have any suggestions to improve. I think we can probably mark them visited and restart the search at a certain point where we left off to improve for the second node (if it isn't found VISITED)
public class searchTree {
static boolean v1=false,v2=false;
public static boolean bfs(Treenode root, int value){
if(root==null){
return false;
}
Queue<Treenode> q1 = new LinkedList<Treenode>();
q1.add(root);
while(!q1.isEmpty())
{
Treenode temp = q1.peek();
if(temp!=null) {
q1.remove();
if (temp.value == value) return true;
if (temp.left != null) q1.add(temp.left);
if (temp.right != null) q1.add(temp.right);
}
}
return false;
}
public static Treenode lcaHelper(Treenode head, int x,int y){
if(head==null){
return null;
}
if(head.value == x || head.value ==y){
if (head.value == y){
v2 = true;
return head;
}
else {
v1 = true;
return head;
}
}
Treenode left = lcaHelper(head.left, x, y);
Treenode right = lcaHelper(head.right,x,y);
if(left!=null && right!=null){
return head;
}
return (left!=null) ? left:right;
}
public static int lca(Treenode head, int h1, int h2) {
v1 = bfs(head,h1);
v2 = bfs(head,h2);
if(v1 && v2){
Treenode lca = lcaHelper(head,h1,h2);
return lca.value;
}
return -1;
}
}
Well, glad I asked. The solution I finally discovered was here:
How do I configure SQL Server Express to allow remote tcp/ip connections on port 1433?
So far, so good, and entirely expected. But then:
(Also, if you follow these steps, it's not necessary to enable SQL Server Browser, and you only need to allow port 1433, not 1434.)
These extra five steps are something I can't remember ever having had to do in a previous version of SQL Server, Express or otherwise. They appear to have been necessary because I'm using a named instance (myservername\SQLEXPRESS) on the server instead of a default instance. See here:
Configure a Server to Listen on a Specific TCP Port (SQL Server Configuration Manager)
In case .empty() doesn't work for you, which is for me
function SetDropDownToEmpty()
{
$('#dropdown').find('option').remove().end().append('<option value="0"></option>');
$("#dropdown").trigger("liszt:updated");
}
$(document).ready(
SetDropDownToEmpty() ;
)
You could make use of the Javascript DOM API. In particular, look at the createElement() method.
You could create a re-usable function that will create an image like so...
function show_image(src, width, height, alt) {
var img = document.createElement("img");
img.src = src;
img.width = width;
img.height = height;
img.alt = alt;
// This next line will just add it to the <body> tag
document.body.appendChild(img);
}
Then you could use it like this...
<button onclick=
"show_image('http://google.com/images/logo.gif',
276,
110,
'Google Logo');">Add Google Logo</button>
I had the same problem, made all the workarounds you advised: still the same error. I updated Eclipse via "Help / Check for updates" and now everything is ok. This update brought a completely new version of the Android SDK Manager.
In case anyone is still wondering...
I did it like this:
<a href="data:application/xml;charset=utf-8,your code here" download="filename.html">Save</a>
cant remember my source but it uses the following techniques\features:
Found the reference:
http://paxcel.net/blog/savedownload-file-using-html5-javascript-the-download-attribute-2/
EDIT: As you can gather from the comments this does NOT work in
Hope you dont mind Xml.Linq and .net3.5+
XElement ele = XElement.Load("text.xml");
String aXmlString = ele.toString(SaveOptions.DisableFormatting);
Depending on what you are interested in, you can probably skip the whole 'string' var part and just use XLinq objects
I know I am very late to answer this question.
But would like to add for further references to the give answers.
DesiredCapabilities
are used like setting your config with key-value pair.
Below is an example related to Appium
used for Automating Mobile platforms like Android
and IOS
.
So we generally set DesiredCapabilities
for conveying our WebDriver
for specific things we will be needing to run our test to narrow down the performance and to increase the accuracy.
So we set our DesiredCapabilities as:
// Created object of DesiredCapabilities class.
DesiredCapabilities capabilities = new DesiredCapabilities();
// Set android deviceName desired capability. Set your device name.
capabilities.setCapability("deviceName", "your Device Name");
// Set BROWSER_NAME desired capability.
capabilities.setCapability(CapabilityType.BROWSER_NAME, "Chrome");
// Set android VERSION desired capability. Set your mobile device's OS version.
capabilities.setCapability(CapabilityType.VERSION, "5.1");
// Set android platformName desired capability. It's Android in our case here.
capabilities.setCapability("platformName", "Android");
// Set android appPackage desired capability.
//You need to check for your appPackage Name for your app, you can use this app for that APK INFO
// Set your application's appPackage if you are using any other app.
capabilities.setCapability("appPackage", "com.android.appPackageName");
// Set android appActivity desired capability. You can use the same app for finding appActivity of your app
capabilities.setCapability("appActivity", "com.android.calculator2.Calculator");
This DesiredCapabilities
are very specific to Appium
on Android
Platform.
For more you can refer to the official site of Selenium desiredCapabilities class
Set overflow-y
property to auto
, or remove the property altogether if it is not inherited.
If you knew that the length of conditions you would care about would all be the same length then you could:
switch(mystring.substring(0, Math.Min(3, mystring.Length))
{
case "abc":
//do something
break;
case "xyz":
//do something else
break;
default:
//do a different thing
break;
}
The Math.Min(3, mystring.Length)
is there so that a string of less than 3 characters won't throw an exception on the sub-string operation.
There are extensions of this technique to match e.g. a bunch of 2-char strings and a bunch of 3-char strings, where some 2-char comparisons matching are then followed by 3-char comparisons. Unless you've a very large number of such strings though, it quickly becomes less efficient than simple if-else chaining for both the running code and the person who has to maintain it.
Edit: Added since you've now stated they will be of different lengths. You could do the pattern I mentioned of checking the first X chars and then the next Y chars and so on, but unless there's a pattern where most of the strings are the same length this will be both inefficient and horrible to maintain (a classic case of premature pessimisation).
The command pattern is mentioned in another answer, so I won't give details of that, as is that where you map string patterns to IDs, but they are option.
I would not change from if-else chains to command or mapping patterns to gain the efficiency switch sometimes has over if-else, as you lose more in the comparisons for the command or obtaining the ID pattern. I would though do so if it made code clearer.
A chain of if-else's can work pretty well, either with string comparisons or with regular expressions (the latter if you have comparisons more complicated than the prefix-matches so far, which would probably be simpler and faster, I'm mentioning reg-ex's just because they do sometimes work well with more general cases of this sort of pattern).
If you go for if-elses, try to consider which cases are going to happen most often, and make those tests happen before those for less-common cases (though of course if "starts with abcd" is a case to look for it would have to be checked before "starts with abc").
CREATE FUNCTION DBO.ConvertDateToVarchar
(
@DATE DATETIME
)
RETURNS VARCHAR(24)
BEGIN
RETURN (SELECT CONVERT(VARCHAR(19),@DATE, 121))
END
Put the h1
and h2
in a container with an id of container
then:
#container {
display: flex;
justify-content: space-beteen;
}
set identity_insert customer on
insert into Customer(id,Name,city,Salary) values(8,'bcd','Amritsar',1234)
where 'customer' is table name
This is how I implemented it pre-material design and it seems to still work now I've switched to the new Toolbar
. In my case I want to log the user in if they attempt to open the side nav while logged out, (and catch the event so the side nav won't open). In your case you could not return true;
.
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (!isLoggedIn() && item.getItemId() == android.R.id.home) {
login();
return true;
}
return mDrawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
}
char subbuff[5];
memcpy( subbuff, &buff[10], 4 );
subbuff[4] = '\0';
Job done :)
Another possible method is using an javascript interpreter in the javascript environment.
By creating multiple interpreters and controlling their execution from the main thread, you can simulate multi-threading with each thread running in its own environment.
The approach is somewhat similar to web workers, but you give the interpreter access to the browser global environment.
I made a small project to demonstrate this.
A more detailed explanation in this blog post.
You need to get the position of the first underscore (using INSTR) and then get the part of the string from 1st charecter to (pos-1) using substr.
1 select 'ABC_blahblahblah' test_string,
2 instr('ABC_blahblahblah','_',1,1) position_underscore,
3 substr('ABC_blahblahblah',1,instr('ABC_blahblahblah','_',1,1)-1) result
4* from dual
SQL> /
TEST_STRING POSITION_UNDERSCORE RES
---------------- ------------------ ---
ABC_blahblahblah 4 ABC
With jQuery i come with this...
$(function() {
var $img = $('img'),
totalImg = $img.length;
var waitImgDone = function() {
totalImg--;
if (!totalImg) alert("Images loaded!");
};
$('img').each(function() {
$(this)
.load(waitImgDone)
.error(waitImgDone);
});
});
If the question was about C (you didn't say), then the answer is no, but: GCC and Clang (maybe others) support a range syntax, but it's not valid ISO C:
switch (number) {
case 1 ... 4:
// Do something.
break;
case 5 ... 9:
// Do something else.
break;
}
Be sure to have a space before and after the ...
or else you'll get a syntax error.
Here is another:
System.Reflection.Assembly.GetExecutingAssembly().Location
The previous answers have lost the first frame. And it will be nice to store the images in a folder.
# create a folder to store extracted images
import os
folder = 'test'
os.mkdir(folder)
# use opencv to do the job
import cv2
print(cv2.__version__) # my version is 3.1.0
vidcap = cv2.VideoCapture('test_video.mp4')
count = 0
while True:
success,image = vidcap.read()
if not success:
break
cv2.imwrite(os.path.join(folder,"frame{:d}.jpg".format(count)), image) # save frame as JPEG file
count += 1
print("{} images are extacted in {}.".format(count,folder))
By the way, you can check the frame rate by VLC. Go to windows -> media information -> codec details
This is a problem related permission. Make sure that the current user has access to the folder which contains installation files.
CREATE PROCEDURE UpdateTables
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
DECLARE @RowCount1 INTEGER
DECLARE @RowCount2 INTEGER
DECLARE @RowCount3 INTEGER
DECLARE @RowCount4 INTEGER
UPDATE Table1 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount1 = @@ROWCOUNT
UPDATE Table2 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount2 = @@ROWCOUNT
UPDATE Table3 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount3 = @@ROWCOUNT
UPDATE Table4 Set Column = 0 WHERE Column IS NULL
SELECT @RowCount4 = @@ROWCOUNT
SELECT @RowCount1 AS Table1, @RowCount2 AS Table2, @RowCount3 AS Table3, @RowCount4 AS Table4
END
Global variables can be used in Node when used wisely.
Declaration of global variables in Node:
a = 10;
GLOBAL.a = 10;
global.a = 10;
All of the above commands the same actions with different syntaxes.
Use global variables when they are not about to be changed
Here an example of something that can happen when using global variables:
// app.js
a = 10; // no var or let or const means global
// users.js
app.get("/users", (req, res, next) => {
res.send(a); // 10;
});
// permissions.js
app.get("/permissions", (req, res, next) => {
a = 11; // notice that there is no previous declaration of a in the permissions.js, means we looking for the global instance of a.
res.send(a); // 11;
});
Explained:
Run users route first and receive 10;
Then run permissions route and receive 11;
Then run again the users route and receive 11 as well instead of 10;
Global variables can be overtaken!
Now think about using express and assignin res object as global.. And you end up with async error become corrupt and server is shuts down.
When to use global vars?
As I said - when var is not about to be changed.
Anyways it's more recommended that you will be using the process.env
object from the config file.
The commands are adduser
and addgroup
.
Here's a template for Docker you can use in busybox environments (alpine) as well as Debian-based environments (Ubuntu, etc.):
ENV USER=docker
ENV UID=12345
ENV GID=23456
RUN adduser \
--disabled-password \
--gecos "" \
--home "$(pwd)" \
--ingroup "$USER" \
--no-create-home \
--uid "$UID" \
"$USER"
Note the following:
--disabled-password
prevents prompt for a password--gecos ""
circumvents the prompt for "Full Name" etc. on Debian-based systems--home "$(pwd)"
sets the user's home to the WORKDIR. You may not want this.--no-create-home
prevents cruft getting copied into the directory from /etc/skel
The usage description for these applications is missing the long flags present in the code for adduser and addgroup.
The following long-form flags should work both in alpine as well as debian-derivatives:
BusyBox v1.28.4 (2018-05-30 10:45:57 UTC) multi-call binary.
Usage: adduser [OPTIONS] USER [GROUP]
Create new user, or add USER to GROUP
--home DIR Home directory
--gecos GECOS GECOS field
--shell SHELL Login shell
--ingroup GRP Group (by name)
--system Create a system user
--disabled-password Don't assign a password
--no-create-home Don't create home directory
--uid UID User id
One thing to note is that if --ingroup
isn't set then the GID is assigned to match the UID. If the GID corresponding to the provided UID already exists adduser will fail.
BusyBox v1.28.4 (2018-05-30 10:45:57 UTC) multi-call binary.
Usage: addgroup [-g GID] [-S] [USER] GROUP
Add a group or add a user to a group
--gid GID Group id
--system Create a system group
I discovered all of this while trying to write my own alternative to the fixuid project for running containers as the hosts UID/GID.
My entrypoint helper script can be found on GitHub.
The intent is to prepend that script as the first argument to ENTRYPOINT
which should cause Docker to infer UID and GID from a relevant bind mount.
An environment variable "TEMPLATE" may be required to determine where the permissions should be inferred from.
(At the time of writing I don't have documentation for my script. It's still on the todo list!!)
You can use map
. Here is an example implementation:
case 'SOME_ACTION':
return {
...state,
contents: state.contents.map(
(content, i) => i === 1 ? {...content, text: action.payload}
: content
)
}
I have already included common-logging1.1.1.jar and ...
Are you sure you spelled the name of the JAR file exactly right? I think it should probably be commons-logging-1.1.1.jar
(note the extra -
in the name). Also check if the directory name is correct.
NoClassDefFoundError
always means that a class cannot be found, so most likely your class path is not correct.
DECLARE
tmp NUMBER(3,1);
BEGIN
SELECT COUNT(content_id) INTO tmp FROM contents WHERE (condition);
if tmp != 0 then
INSERT INTO contents VALUES (...);
else
INSERT INTO contents VALUES (...);
end if;
END;
I used the code above. It is long, but, simple and worked for me. Similar, to Micheal's code.
I had a similar problem. Visual Studio would not load any web projects and showed the error: creation of virtual directory <myproj:myport> failed. Unable to access the IIS metabase.
In my case it was actually IISExpress that was at the root of the problem. Right clicking on IIS Express in Programs and Features in the control panel and choosing repair fixed the issue in less than two minutes.
i have tried following solution and it had work for me C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\devenv.exe right click on Devenv.exe in Compablity tab --> Privilage Level --> click on Run this Program as an Adminstrator If as for the Admin Password Provide it
if it is already selected deselect it and again select it -->Apply-->OK
restart the VS application and Publish your website again
Yes, Possible to download a folder instead of downloading the whole repository. Even any/last commit
Nice way to do this
D:\Lab>git svn clone https://github.com/Qamar4P/LolAdapter.git/trunk/lol-adapter -r HEAD
-r HEAD will only download last revision, ignore all history.
Note trunk and /specific-folder
Copy and change URL before and after /trunk/
. I hope this will help someone. Enjoy :)
Updated on 26 Sep 2019
You can also try doing this using one of many third party tools that are available for this.
Queries are great for simple searches but if you need to do more manipulation with data, search for references and such this is where you can do a much better job with these.
Also, these come in very handy when some objects are encrypted and you need to search for
I’m using ApexSQL Search which is free but there are also many more (also free) on the market such as Red Gate or SSMS Tool Pack.
As of Python 3.5, you can use enhanced generators for async functions.
import asyncio
import datetime
Enhanced generator syntax:
@asyncio.coroutine
def display_date(loop):
end_time = loop.time() + 5.0
while True:
print(datetime.datetime.now())
if (loop.time() + 1.0) >= end_time:
break
yield from asyncio.sleep(1)
loop = asyncio.get_event_loop()
# Blocking call which returns when the display_date() coroutine is done
loop.run_until_complete(display_date(loop))
loop.close()
New async/await
syntax:
async def display_date(loop):
end_time = loop.time() + 5.0
while True:
print(datetime.datetime.now())
if (loop.time() + 1.0) >= end_time:
break
await asyncio.sleep(1)
loop = asyncio.get_event_loop()
# Blocking call which returns when the display_date() coroutine is done
loop.run_until_complete(display_date(loop))
loop.close()
Just copy this:
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Your text:"/>
<CheckBox
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
/>
</LinearLayout>
Happy codding! :)
Try this:
KeyValuePair<string,int> current = this.recent.SingleOrDefault(r => r.Key.Equals(dialog.FileName) == true);
if (current.Key == null)
this.recent.Add(new KeyValuePair<string,int>(dialog.FileName,0));
If you can have an empty config/database.yml file then define ENV['DATABASE_URL'] variable, then It will work
$ cat config/database.yml
$ echo $DATABASE_URL
mysql://root:[email protected]:3306/my_db_name
for Heroku:
heroku config:set DATABASE_URL='mysql://root:[email protected]/my_db_name'
I'm pretty sure all of the examples above only reload the iframe with its original src, not its current URL.
$('#frameId').attr('src', function () { return $(this).contents().get(0).location.href });
That should reload using the current url.
Is this what you are looking for?
https://maps.googleapis.com/maps/api/place/search/xml?location=49.260691,-123.137784&radius=500&sensor=false&key=*PlacesAPIKey*&types=restaurant
types is optional
I think this question is lacking a recursive solution:
// Preliminary screen to save our beloved CPUs from unneccessary labour_x000D_
_x000D_
const isPrime = n => {_x000D_
if (n === 2 || n === 3) return true;_x000D_
if (n < 2 || n % 2 === 0) return false;_x000D_
_x000D_
return isPrimeRecursive(n);_x000D_
}_x000D_
_x000D_
// The recursive function itself, tail-call optimized._x000D_
// Iterate only over odd divisors (there's no point to iterate over even ones)._x000D_
_x000D_
const isPrimeRecursive = (n, i = 3, limit = Math.floor(Math.sqrt(n))) => { _x000D_
if (n % i === 0) return false;_x000D_
if (i >= limit) return true; // Heureka, we have a prime here!_x000D_
return isPrimeRecursive(n, i += 2, limit);_x000D_
}_x000D_
_x000D_
// Usage example_x000D_
_x000D_
for (i = 0; i <= 50; i++) {_x000D_
console.log(`${i} is ${isPrime(i) ? `a` : `not a` } prime`);_x000D_
}
_x000D_
This approach have it's downside – since browser engines are (written 11/2018) still not TC optimized, you'd probably get a literal stack overflow error if testing primes in order of tens lower hundreds of millions or higher (may vary, depends on an actual browser and free memory).
As of Ubuntu 12.04 (Precise Pangolin) (and perhaps a release or two before) simply installing apache2
and mod-perl
via Synaptic and placing your CGI scripts in /usr/lib/cgi-bin is really all you need to do.
In Sublime Text (with shortcuts on Mac):
Highlight the text that you want to search to apply Find & Replace
Go to Menu > Find > Replace... (Keyboard Shortcut: Alt + Command + F)
In the Find & Replace tool, enable Regular Expression by clicking on the button which looks like [.*] (Keyboard Shortcut: Alt + Command + R)
In Find What, type: \\n
Note: The additional \
escapes the Regular Expression syntax when searched.
In Replace With, type: \n
Click on the 'Replace All' button (Keyboard Shortcut: CTRL + Alt + Enter)
Your literal text \n
will then turn into an actual line break.
Maybe you forgot the await before returning your collection
also had same problem once,
if you are unable to solve the problem you can run the following command on command line
chrome.exe --user-data-dir="C://Chrome dev session" --disable-web-security
Note: you have to navigate to the installation path of your chrome.
For example:cd C:\Program Files\Google\Chrome\Application
A developer session chrome browser will be opened, you can now launch your app on the new chrome browse.
I hope this should be helpful
You did every thing correct, I have been gone through same problem.
First delete you db and migrations
I solved my adding name of my app in makemigrations
:
python manage.py makemigrations appname
python manage.py migrate
This will definitely work.
Uninstall the old version of Angular cli, and install Angular CLI global:
Update Angular cli global package to the next version, "@angular/compiler-cli": "^6.0.0"
npm uninstall -g @angular/cli
npm cache verify
npm install -g @angular/cli@next
Generate a new project and default application by running the following command:
ng new my-project
cd my-project
ng serve
Because constants in Ruby aren't meant to be changed, Ruby discourages you from assigning to them in parts of code which might get executed more than once, such as inside methods.
Under normal circumstances, you should define the constant inside the class itself:
class MyClass
MY_CONSTANT = "foo"
end
MyClass::MY_CONSTANT #=> "foo"
If for some reason though you really do need to define a constant inside a method (perhaps for some type of metaprogramming), you can use const_set
:
class MyClass
def my_method
self.class.const_set(:MY_CONSTANT, "foo")
end
end
MyClass::MY_CONSTANT
#=> NameError: uninitialized constant MyClass::MY_CONSTANT
MyClass.new.my_method
MyClass::MY_CONSTANT #=> "foo"
Again though, const_set
isn't something you should really have to resort to under normal circumstances. If you're not sure whether you really want to be assigning to constants this way, you may want to consider one of the following alternatives:
Class variables behave like constants in many ways. They are properties on a class, and they are accessible in subclasses of the class they are defined on.
The difference is that class variables are meant to be modifiable, and can therefore be assigned to inside methods with no issue.
class MyClass
def self.my_class_variable
@@my_class_variable
end
def my_method
@@my_class_variable = "foo"
end
end
class SubClass < MyClass
end
MyClass.my_class_variable
#=> NameError: uninitialized class variable @@my_class_variable in MyClass
SubClass.my_class_variable
#=> NameError: uninitialized class variable @@my_class_variable in MyClass
MyClass.new.my_method
MyClass.my_class_variable #=> "foo"
SubClass.my_class_variable #=> "foo"
Class attributes are a sort of "instance variable on a class". They behave a bit like class variables, except that their values are not shared with subclasses.
class MyClass
class << self
attr_accessor :my_class_attribute
end
def my_method
self.class.my_class_attribute = "blah"
end
end
class SubClass < MyClass
end
MyClass.my_class_attribute #=> nil
SubClass.my_class_attribute #=> nil
MyClass.new.my_method
MyClass.my_class_attribute #=> "blah"
SubClass.my_class_attribute #=> nil
SubClass.new.my_method
SubClass.my_class_attribute #=> "blah"
And just for completeness I should probably mention: if you need to assign a value which can only be determined after your class has been instantiated, there's a good chance you might actually be looking for a plain old instance variable.
class MyClass
attr_accessor :instance_variable
def my_method
@instance_variable = "blah"
end
end
my_object = MyClass.new
my_object.instance_variable #=> nil
my_object.my_method
my_object.instance_variable #=> "blah"
MyClass.new.instance_variable #=> nil
If you are planning to use JdbcTemplate in multiple locations, it would be a good idea to create a Spring Bean for it.
Using Java Config it would be:
@Configuration
public class DBConfig {
@Bean
public DataSource dataSource() {
//create a data source
}
@Bean
public JdbcTemplate jdbcTemplate() {
return new JdbcTemplate(dataSource());
}
@Bean
public TransactionManager transactionManager() {
return new DataSourceTransactionManager(dataSource());
}
}
Then a repository that uses that JdbcTemplate could be:
@Repository
public class JdbcSomeRepository implements SomeRepository {
private final JdbcTemplate jdbcTemplate ;
@Autowired
public JdbcSomeRepository(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
@Override
@Transactional
public int someUpdate(SomeType someValue, SomeOtherType someOtherValue) {
return jdbcTemplate.update("INSERT INTO SomeTable(column1, column2) VALUES(?,?)", someValue, someOtherValue)
}
}
The update method from JdbcTemplate that I have used can be found here.
It is cumbersome to interoperate socket.io and connect sessions support. The problem is not because socket.io "hijacks" request somehow, but because certain socket.io transports (I think flashsockets) don't support cookies. I could be wrong with cookies, but my approach is the following:
I would recommend using Wireshark, which has a "Follow TCP Stream" option that makes it very easy to see the full requests and responses for a particular TCP connection. If you would prefer to use the command line, you can try tcpflow, a tool dedicated to capturing and reconstructing the contents of TCP streams.
Other options would be using an HTTP debugging proxy, like Charles or Fiddler as EricLaw suggests. These have the advantage of having specific support for HTTP to make it easier to deal with various sorts of encodings, and other features like saving requests to replay them or editing requests.
You could also use a tool like Firebug (Firefox), Web Inspector (Safari, Chrome, and other WebKit-based browsers), or Opera Dragonfly, all of which provide some ability to view the request and response headers and bodies (though most of them don't allow you to see the exact byte stream, but instead how the browsers parsed the requests).
And finally, you can always construct requests by hand, using something like telnet, netcat, or socat to connect to port 80 and type the request in manually, or a tool like htty to help easily construct a request and inspect the response.
FireFox have problemes for getBBox(), i need to do this in vanillaJS.
I've a better Way and is the same result as real svg.getBBox() function !
With this good post : Get the real size of a SVG/G element
var el = document.getElementById("yourElement"); // or other selector like querySelector()
var rect = el.getBoundingClientRect(); // get the bounding rectangle
console.log( rect.width );
console.log( rect.height);
To get the origin of any url, including paths within a website (/my/path
) or schemaless (//example.com/my/path
), or full (http://example.com/my/path
) I put together a quick function.
In the snippet below, all three calls should log https://stacksnippets.net
.
function getOrigin(url)_x000D_
{_x000D_
if(/^\/\//.test(url))_x000D_
{ // no scheme, use current scheme, extract domain_x000D_
url = window.location.protocol + url;_x000D_
}_x000D_
else if(/^\//.test(url))_x000D_
{ // just path, use whole origin_x000D_
url = window.location.origin + url;_x000D_
}_x000D_
return url.match(/^([^/]+\/\/[^/]+)/)[0];_x000D_
}_x000D_
_x000D_
console.log(getOrigin('https://stacksnippets.net/my/path'));_x000D_
console.log(getOrigin('//stacksnippets.net/my/path'));_x000D_
console.log(getOrigin('/my/path'));
_x000D_
You can call sortable
on a <tbody>
instead of on the individual rows.
<table>
<tbody>
<tr>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td>3</td>
<td>4</td>
</tr>
<tr>
<td>5</td>
<td>6</td>
</tr>
</tbody>
</table>?
<script>
$('tbody').sortable();
</script>
$(function() {_x000D_
$( "tbody" ).sortable();_x000D_
});
_x000D_
_x000D_
table {_x000D_
border-spacing: collapse;_x000D_
border-spacing: 0;_x000D_
}_x000D_
td {_x000D_
width: 50px;_x000D_
height: 25px;_x000D_
border: 1px solid black;_x000D_
}
_x000D_
_x000D_
_x000D_
<link href="//code.jquery.com/ui/1.11.1/themes/smoothness/jquery-ui.css" rel="stylesheet">_x000D_
<script src="//code.jquery.com/jquery-1.11.1.js"></script>_x000D_
<script src="//code.jquery.com/ui/1.11.1/jquery-ui.js"></script>_x000D_
_x000D_
<table>_x000D_
<tbody>_x000D_
<tr>_x000D_
<td>1</td>_x000D_
<td>2</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>3</td>_x000D_
<td>4</td>_x000D_
</tr>_x000D_
<tr> _x000D_
<td>5</td>_x000D_
<td>6</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>7</td>_x000D_
<td>8</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>9</td> _x000D_
<td>10</td>_x000D_
</tr> _x000D_
</tbody> _x000D_
</table>
_x000D_
Was looking at how to trust a certificate while using jenkins cli, and found https://issues.jenkins-ci.org/browse/JENKINS-12629 which has some recipe for that.
This will give you the certificate:
openssl s_client -connect ${HOST}:${PORT} </dev/null
if you are interested only in the certificate part, cut it out by piping it to:
| sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p'
and redirect to a file:
> ${HOST}.cert
Then import it using keytool:
keytool -import -noprompt -trustcacerts -alias ${HOST} -file ${HOST}.cert \
-keystore ${KEYSTOREFILE} -storepass ${KEYSTOREPASS}
In one go:
HOST=myhost.example.com
PORT=443
KEYSTOREFILE=dest_keystore
KEYSTOREPASS=changeme
# get the SSL certificate
openssl s_client -connect ${HOST}:${PORT} </dev/null \
| sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ${HOST}.cert
# create a keystore and import certificate
keytool -import -noprompt -trustcacerts \
-alias ${HOST} -file ${HOST}.cert \
-keystore ${KEYSTOREFILE} -storepass ${KEYSTOREPASS}
# verify we've got it.
keytool -list -v -keystore ${KEYSTOREFILE} -storepass ${KEYSTOREPASS} -alias ${HOST}
I issued sudo chmod 700 ~/.ssh
and chmod 600 ~/.ssh/authorized_keys
and chmod go-w $HOME $HOME/.ssh
from a previous answer and it fixed my problem on a CentOS 7 box that I had messed up the permissions on while trying to get Samba shares working.
You can use the object-fit
property to size the img
elements:
cover
stretches or shrinks the image proportionally to fill the container. The image is cropped horizontally -or- vertically if necessary.contain
stretches or shrinks the image proportionally to fit inside the container.scale-down
shrinks the image proportionally to fit inside the container..example {_x000D_
margin: 1em 0;_x000D_
text-align: center;_x000D_
}_x000D_
_x000D_
.example img {_x000D_
width: 30vw;_x000D_
height: 30vw;_x000D_
}_x000D_
_x000D_
.example-cover img {_x000D_
object-fit: cover;_x000D_
}_x000D_
_x000D_
.example-contain img {_x000D_
object-fit: contain;_x000D_
}
_x000D_
<div class="example example-cover">_x000D_
<img src="https://i.stack.imgur.com/B0EAo.png">_x000D_
<img src="https://i.stack.imgur.com/iYkNH.png">_x000D_
<img src="https://i.stack.imgur.com/gne9N.png">_x000D_
</div>_x000D_
_x000D_
<div class="example example-contain">_x000D_
<img src="https://i.stack.imgur.com/B0EAo.png">_x000D_
<img src="https://i.stack.imgur.com/iYkNH.png">_x000D_
<img src="https://i.stack.imgur.com/gne9N.png">_x000D_
</div>
_x000D_
In the above example: red is landscape, green is portrait and blue is square image. The checkered pattern consists of 16x16px squares.
Try:
pip3 install bs4
If you have python2 installed you typically have to make sure you are using the correct version of pip.
while(inFile1.hasNext()){
token1 = inFile1.nextLine();
// put each value into an array with String#split();
String[] numStrings = line.split(", ");
// parse number string into doubles
double[] nums = new double[numString.length];
for (int i = 0; i < nums.length; i++){
nums[i] = Double.parseDouble(numStrings[i]);
}
}
You could always use AlphaMail (disclosure: I'm one of the developers behind it).
Just install with NPM:
npm install alphamail
Sign up for a AlphaMail account. Get a token, and then you can start sending with the AlphaMail service.
var alphamail = require('alphamail');
var emailService = new alphamail.EmailService()
.setServiceUrl('http://api.amail.io/v1/')
.setApiToken('YOUR-ACCOUNT-API-TOKEN-HERE');
var person = {
id: 1234,
userName: "jdoe75",
name: {
first: "John",
last: "Doe"
},
dateOfBirth: 1975
};
emailService.queue(new alphamail.EmailMessagePayload()
.setProjectId(12345) // ID of your AlphaMail project (determines template, options, etc)
.setSender(new alphamail.EmailContact("Sender Company Name", "[email protected]"))
.setReceiver(new alphamail.EmailContact("John Doe", "[email protected]"))
.setBodyObject(person) // Any serializable object
);
And in the AlphaMail GUI (Dashboard) you'll be able to edit the template with the data you sent:
<html>
<body>
<b>Name:</b> <# payload.name.last " " payload.name.first #><br>
<b>Date of Birth:</b> <# payload.dateOfBirth #><br>
<# if (payload.id != null) { #>
<a href="http://company.com/sign-up">Sign Up Free!</a>
<# } else { #>
<a href="http://company.com/login?username=<# urlencode(payload.userName) #>">Sign In</a>
<# } #>
</body>
</html>
The templates are written in Comlang, it's a simple template language specifically designed for emails.
Ok, it is apocalyptical 2020 now, and you can find these methods in NuGet package System.Net.Http.Json
. But beware that it uses System.Text.Json
internally.
And if you really need to find out which API resides where, just use https://apisof.net/
actions.js
const axios = require('axios');
const types = require('./types');
export const actions = {
GET_CONTENT({commit}){
axios.get(`${URL}`)
.then(doc =>{
const content = doc.data;
commit(types.SET_CONTENT , content);
setTimeout(() =>{
commit(types.IS_LOADING , false);
} , 1000);
}).catch(err =>{
console.log(err);
});
},
}
home.vue
<script>
import {value , onCreated} from "vue-function-api";
import {useState, useStore} from "@u3u/vue-hooks";
export default {
name: 'home',
setup(){
const store = useStore();
const state = {
...useState(["content" , "isLoading"])
};
onCreated(() =>{
store.value.dispatch("GET_CONTENT" );
});
return{
...state,
}
}
};
</script>
I ended up with this function to safely replace text without side effects (so far):
function replaceInText(element, pattern, replacement) {
for (let node of element.childNodes) {
switch (node.nodeType) {
case Node.ELEMENT_NODE:
replaceInText(node, pattern, replacement);
break;
case Node.TEXT_NODE:
node.textContent = node.textContent.replace(pattern, replacement);
break;
case Node.DOCUMENT_NODE:
replaceInText(node, pattern, replacement);
}
}
}
It's for cases where the 16kB of findAndReplaceDOMText
are a bit too heavy.
If you want to compare to a string literal you need to put it in (single) quotes:
<xsl:if test="Count != 'N/A'">
Let's say we have two lists
list1 = [1, 3, 5, 7, 9]
list2 = [1, 2, 3, 4, 5]
we can see from the above two lists that items 1, 3, 5 exist in list2 and items 7, 9 do not. On the other hand, items 1, 3, 5 exist in list1 and items 2, 4 do not.
What is the best solution to return a new list containing items 7, 9 and 2, 4?
All answers above find the solution, now whats the most optimal?
def difference(list1, list2):
new_list = []
for i in list1:
if i not in list2:
new_list.append(i)
for j in list2:
if j not in list1:
new_list.append(j)
return new_list
versus
def sym_diff(list1, list2):
return list(set(list1).symmetric_difference(set(list2)))
Using timeit we can see the results
t1 = timeit.Timer("difference(list1, list2)", "from __main__ import difference,
list1, list2")
t2 = timeit.Timer("sym_diff(list1, list2)", "from __main__ import sym_diff,
list1, list2")
print('Using two for loops', t1.timeit(number=100000), 'Milliseconds')
print('Using two for loops', t2.timeit(number=100000), 'Milliseconds')
returns
[7, 9, 2, 4]
Using two for loops 0.11572412995155901 Milliseconds
Using symmetric_difference 0.11285737506113946 Milliseconds
Process finished with exit code 0
Works particularly great for Google Earth Studio images:
ffmpeg -framerate 24 -i Project%03d.png Project.mp4
To set the placeholder color once for all the UITextField
in your app you can do:
UILabel.appearanceWhenContainedInInstancesOfClasses([UITextField.self]).textColor = UIColor.redColor()
This will set the desired color for all TextField
placeholders in the entire app. But it is only available since iOS 9.
There is no appearenceWhenContainedIn....() method before iOS 9 in swift but you can use one of the solutions provided here appearanceWhenContainedIn in Swift
Java does have StringTokenizer
API and can be used for this purpose as below.
String test = "This is a test app";
int countOfTokens = new StringTokenizer(test).countTokens();
System.out.println(countOfTokens);
OR
in a single line as below
System.out.println(new StringTokenizer("This is a test app").countTokens());
StringTokenizer
supports multiple spaces in the input string, counting only the words trimming unnecessary spaces.
System.out.println(new StringTokenizer("This is a test app").countTokens());
Above line also prints 5
How about this?
fscanf(file,"%d %d %d %d %d %d %d",&line1_1,&line1_2, &line1_3, &line2_1, &line2_2, &line3_1, &line3_2);
In this case spaces in fscanf
match multiple occurrences of any whitespace until the next token in found.
You can get it using the :selected
selector, like this:
$("#my_select").change(function() {
var id = $(this).children(":selected").attr("id");
});
I solved it doing
run devenv /resetuserdata
in this path:
[x64] C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE
I assume that in x86 it works in this path:
[x86] C:\Program Files\Microsoft Visual Studio 14.0\Common7\IDE
var values = {};
$('td input').each(function(){
values[$(this).attr('name')] = $(this).val();
}
Haven't tested, but that should do it...
As with @Kametrixom answer here I believe returning an array would be better than returning AnySequence, since you can have access to all of Array's goodies such as count, etc.
Here's the re-write:
public protocol EnumCollection : Hashable {}
extension EnumCollection {
public static func allValues() -> [Self] {
typealias S = Self
let retVal = AnySequence { () -> AnyGenerator<S> in
var raw = 0
return AnyGenerator {
let current : Self = withUnsafePointer(&raw) { UnsafePointer($0).memory }
guard current.hashValue == raw else { return nil }
raw += 1
return current
}
}
return [S](retVal)
}
}
I faced something like that in one of the old and legacy projects that i worked in that not contains any interfaces or best practice and also it's too hard to enforce them build things again or refactoring the code due to the maturity of the project business, So in my UnitTest project i used to create a Wrapper over the classes that I want to mock and that wrapper implement interface which contains all my needed methods that I want to setup and work with, Now I can mock the wrapper instead of the real class.
For Example:
Service you want to test which not contains virtual methods or implement interface
public class ServiceA{
public void A(){}
public String B(){}
}
Wrapper to moq
public class ServiceAWrapper : IServiceAWrapper{
public void A(){}
public String B(){}
}
The Wrapper Interface
public interface IServiceAWrapper{
void A();
String B();
}
In the unit test you can now mock the wrapper:
public void A_Run_ChangeStateOfX()
{
var moq = new Mock<IServiceAWrapper>();
moq.Setup(...);
}
This might be not the best practice, but if your project rules force you in this way, do it. Also Put all your Wrappers inside your Unit Test project or Helper project specified only for the unit tests in order to not overload the project with unneeded wrappers or adaptors.
Update: This answer from more than a year but in this year i faced a lot of similar scenarios with different solutions. For example it's so easy to use Microsoft Fake Framework to create mocks, fakes and stubs and even test private and protected methods without any interfaces. You can read: https://docs.microsoft.com/en-us/visualstudio/test/isolating-code-under-test-with-microsoft-fakes?view=vs-2017
When compiling with -std=c++11
, one can simply
const char *s = u8"\u0444";
cout << s << endl;
Another option is to repeat the rules in two prefix locations using an included file. Since prefix locations are position independent in the configuration, using them can save some confusion as you add other regex locations later on. Avoiding regex locations when you can will help your configuration scale smoothly.
server {
location /first/location/ {
include shared.conf;
}
location /second/location/ {
include shared.conf;
}
}
Here's a sample shared.conf:
default_type text/plain;
return 200 "http_user_agent: $http_user_agent
remote_addr: $remote_addr
remote_port: $remote_port
scheme: $scheme
nginx_version: $nginx_version
";
Yes, what you are asking for is called AJAX or XMLHttpRequest. You can either use a library like jQuery to simplify making the call (due to cross-browser compatibility issues), or write your own handler.
In jQuery:
$.GET('url.asp', {data: 'here'}, function(data){ /* what to do with the data returned */ })
In plain vanilla javaScript (from w3c):
var xmlhttp;
function loadXMLDoc(url)
{
xmlhttp=null;
if (window.XMLHttpRequest)
{// code for all new browsers
xmlhttp=new XMLHttpRequest();
}
else if (window.ActiveXObject)
{// code for IE5 and IE6
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
if (xmlhttp!=null)
{
xmlhttp.onreadystatechange=state_Change;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}
else
{
alert("Your browser does not support XMLHTTP.");
}
}
function state_Change()
{
if (xmlhttp.readyState==4)
{// 4 = "loaded"
if (xmlhttp.status==200)
{// 200 = OK
//xmlhttp.data and shtuff
// ...our code here...
}
else
{
alert("Problem retrieving data");
}
}
}
An answer you didn't ask for that may be helpful, if you're doing the replacement in preparation for sending the string into alert() -- or anything else where a single quote character might trip you up.
str.replace("'",'\x27')
That will replace all single quotes with the hex code for single quote.
@thebjorn has given a good answer. But if you want more options, you can try OpenCV, SimpleCV.
using SimpleCV (not supported in python3.x):
from SimpleCV import Image, Camera
cam = Camera()
img = cam.getImage()
img.save("filename.jpg")
using OpenCV:
from cv2 import *
# initialize the camera
cam = VideoCapture(0) # 0 -> index of camera
s, img = cam.read()
if s: # frame captured without any errors
namedWindow("cam-test",CV_WINDOW_AUTOSIZE)
imshow("cam-test",img)
waitKey(0)
destroyWindow("cam-test")
imwrite("filename.jpg",img) #save image
using pygame:
import pygame
import pygame.camera
pygame.camera.init()
pygame.camera.list_cameras() #Camera detected or not
cam = pygame.camera.Camera("/dev/video0",(640,480))
cam.start()
img = cam.get_image()
pygame.image.save(img,"filename.jpg")
Install OpenCV:
install python-opencv bindings, numpy
Install SimpleCV:
install python-opencv, pygame, numpy, scipy, simplecv
get latest version of SimpleCV
Install pygame:
install pygame