Just put the
Response.End();
within a finally block instead of within the try block.
This has worked for me!!!.
I had the following problematic (with the Exception) code structure
...
Response.Clear();
...
...
try{
if (something){
Reponse.Write(...);
Response.End();
return;
}
some_more_code...
Reponse.Write(...);
Response.End();
}
catch(Exception){
}
finally{}
and it throws the exception. I suspect the Exception is thrown where there is code / work to execute after response.End(); . In my case the extra code was just the return itself.
When I just moved the response.End(); to the finally block (and left the return in its place - which causes skipping the rest of code in the try block and jumping to the finally block (not just exiting the containing function) ) the Exception ceased to take place.
The following works OK:
...
Response.Clear();
...
...
try{
if (something){
Reponse.Write(...);
return;
}
some_more_code...
Reponse.Write(...);
}
catch(Exception){
}
finally{
Response.End();
}
Just finish it up.
string sqlCommand = "SELECT * FROM TABLE";
string connectionString = "blahblah";
DataSet ds = GetDataSet(sqlCommand, connectionString);
DataSet GetDataSet(string sqlCommand, string connectionString)
{
DataSet ds = new DataSet();
using (SqlCommand cmd = new SqlCommand(
sqlCommand, new SqlConnection(connectionString)))
{
cmd.Connection.Open();
DataTable table = new DataTable();
table.Load(cmd.ExecuteReader());
ds.Tables.Add(table);
}
return ds;
}
It runs successfully the first time, but if I run it again, I keep getting a System.OutOfMemoryException. What are some reasons this could be happening?
Regardless of what the others have said, the error has nothing to do with forgetting to dispose your DBCommand or DBConnection, and you will not fix your error by disposing of either of them.
The error has everything to do with your dataset which contains nearly 600,000 rows of data. Apparently your dataset consumes more than 50% of the available memory on your machine. Clearly, you'll run out of memory when you return another dataset of the same size before the first one has been garbage collected. Simple as that.
You can remedy this problem in a few ways:
Consider returning fewer records. I personally can't imagine a time when returning 600K records has ever been useful to a user. To minimize the records returned, try:
Limiting your query to the first 1000 records. If there are more than 1000 results returned from the query, inform the user to narrow their search results.
If your users really insist on seeing that much data at once, try paging the data. Remember: Google never shows you all 22 bajillion results of a search at once, it shows you 20 or so records at a time. Google probably doesn't hold all 22 bajillion results in memory at once, it probably finds its more memory efficient to requery its database to generate a new page.
If you just need to iterate through the data and you don't need random access, try returning a datareader instead. A datareader only loads one record into memory at a time.
If none of those are an option, then you need to force .NET to free up the memory used by the dataset before calling your method using one of these methods:
Remove all references to your old dataset. Anything holding on to a refenence of your dataset will prevent it from being reclaimed by memory.
If you can't null all the references to your dataset, clear all of the rows from the dataset and any objects bound to those rows instead. This removes references to the datarows and allows them to be eaten by the garbage collector.
I don't believe you'll need to call GC.Collect()
to force a gen cycle. Not only is it generally a bad idea to call GC.Collect()
, because sufficient memory pressure will cause .NET invoke the garbage collector on its own.
Note: calling Dispose on your dataset does not free any memory, nor does it invoke the garbage collector, nor does it remove a reference to your dataset. Dispose is used to clean up unmanaged resources, but the DataSet does not have any unmanaged resources. It only implements IDispoable because it inherents from MarshalByValueComponent, so the Dispose method on the dataset is pretty much useless.
Use controller.controller_name
In the Rails Guides, it says:
The params hash will always contain the :controller and :action keys, but you should use the methods controller_name and action_name instead to access these values
So let's say you have a CSS class active
, that should be inserted in any link whose page is currently open (maybe so that you can style differently) . If you have a static_pages
controller with an about
action, you can then highlight the link like so in your view:
<li>
<a class='button <% if controller.controller_name == "static_pages" && controller.action_name == "about" %>active<%end%>' href="/about">
About Us
</a>
</li>
function removeAllBlankOrNull(JsonObj) {
$.each(JsonObj, function(key, value) {
if (value === "" || value === null) {
delete JsonObj[key];
} else if (typeof(value) === "object") {
JsonObj[key] = removeAllBlankOrNull(value);
}
});
return JsonObj;
}
Deletes all empty strings and null values recursively. Fiddle
The only way to access classes in the default package is from another class in the default package. In that case, don't bother to import
it, just refer to it directly.
Subscribing to the IUS Community Project Repository
cd ~
curl 'https://setup.ius.io/' -o setup-ius.sh
Run the script:
sudo bash setup-ius.sh
Upgrading mod_php with Apache
This section describes the upgrade process for a system using Apache as the web server and mod_php to execute PHP code. If, instead, you are running Nginx and PHP-FPM, skip ahead to the next section.
Begin by removing existing PHP packages. Press y and hit Enter to continue when prompted.
sudo yum remove php-cli mod_php php-common
Install the new PHP 7 packages from IUS. Again, press y and Enter when prompted.
sudo yum install mod_php70u php70u-cli php70u-mysqlnd
Finally, restart Apache to load the new version of mod_php:
sudo apachectl restart
You can check on the status of Apache, which is managed by the httpd systemd unit, using systemctl:
systemctl status httpd
try
Sub save()
ActiveWorkbook.SaveAS Filename:="C:\-docs\cmat\Desktop\New folder\" & Range("C5").Text & chr(32) & Range("C8").Text &".xls", FileFormat:= _
xlNormal, Password:="", WriteResPassword:="", ReadOnlyRecommended:=False _
, CreateBackup:=False
End Sub
If you want to save the workbook with the macros use the below code
Sub save()
ActiveWorkbook.SaveAs Filename:="C:\Users\" & Environ$("username") & _
"\Desktop\" & Range("C5").Text & Chr(32) & Range("C8").Text & ".xlsm", FileFormat:= _
xlOpenXMLWorkbookMacroEnabled, Password:=vbNullString, WriteResPassword:=vbNullString, _
ReadOnlyRecommended:=False, CreateBackup:=False
End Sub
if you want to save workbook with no macros and no pop-up use this
Sub save()
Application.DisplayAlerts = False
ActiveWorkbook.SaveAs Filename:="C:\Users\" & Environ$("username") & _
"\Desktop\" & Range("C5").Text & Chr(32) & Range("C8").Text & ".xls", _
FileFormat:=xlOpenXMLWorkbook, CreateBackup:=False
Application.DisplayAlerts = True
End Sub
This will work from anywhere, inside Form(), Form_Load(), or any event handler. I posted before, but I don't see it now?!?
public void exit(int exitCode)
{
if (System.Windows.Forms.Application.MessageLoop)
{
// Use this since we are in a running Form
System.Windows.Forms.Application.Exit();
System.Environment.Exit(exitCode);
}
else
{
// Form ended or never .Run
System.Environment.Exit(exitCode);
}
} //* end exit()
ArrayList
already have support for this, with the equals
method. Quoting the docs
... In other words, two lists are defined to be equal if they contain the same elements in the same order.
It does require you to properly implement equals
in your MyData
class.
Edit
You have updated the question stating that the lists could have different orders. In that case, sort your list first, and then apply equals.
Problem Statement: "git fatal authentication failed". I am using bitbucket.
Solution: I simply deleted the user from using access management of bitbucket and then added the same user. The .gitconfig file is simple
[user]
name = BlaBla
email = [email protected]
[push]
default = simple
If you want to change your default shell to bash
for all projects on Jenkins, you can do so in the Jenkins config through the web portal:
Manage Jenkins > Configure System (Skip this clicking if you want by just going to https://{YOUR_JENKINS_URL}/configure
.)
Fill in the field marked 'Shell executable' with the value /bin/bash
and click 'Save'.
I would check the DDL for the sequence in the schema. JPA Implementation is responsible only creation of the sequence with the correct allocation size. Therefore, if the allocation size is 50 then your sequence must have the increment of 50 in its DDL.
This case may typically occur with the creation of a sequence with allocation size 1 then later configured to allocation size 50 (or default) but the sequence DDL is not updated.
Actually, the easiest way is
char* ext;
ext = strrchr(filename,'.')
One thing to remember: if '.'
doesn't exist in filename, ext will be NULL
.
You can try like this too.
Your HTML
Code
<select id="mySelectionBox">
<option value="hello">Foo</option>
<option value="hello1">Foo1</option>
<option value="hello2">Foo2</option>
<option value="hello3">Foo3</option>
</select>
You JQuery
Code
$("#mySelectionBox option").each(function() {
alert(this.text + ' ' + this.value);
});
OR
var select = $('#mySelectionBox')[0];
for (var i = 0; i < select.length; i++){
var option = select.options[i];
alert (option.text + ' ' + option.value);
}
Don't forget that you can treat pointers as iterators:
w_.assign(w, w + len);
@Alexander Mills answer - just to make it easier to find:
RUN npm set unsafe-perm true
For those looking for a C# workaround:
If you need for some reason to have the "AutoGeneratedColumns" enabled, one thing you can do is to specify all the columns's width except the ones you want to be auto resized (it will not take the remaining space, but it will resize to the cell's content).
Example (dgShopppingCart is my DataGrid):
dgShoppingCart.Columns[0].Visibility = Visibility.Hidden;
dgShoppingCart.Columns[1].Header = "Qty";
dgShoppingCart.Columns[1].Width = 100;
dgShoppingCart.Columns[2].Header = "Product Name"; /*This will be resized to cell content*/
dgShoppingCart.Columns[3].Header = "Price";
dgShoppingCart.Columns[3].Width = 100;
dgShoppingCart.Columns[4].Visibility = Visibility.Hidden;
For me it works as a workaround because I needed to have the DataGrid resized when the user maximize the Window.
you must be using Laravel 5 the command
class User_Controller extends Controller {
public $restful = true;
public function get_index(){
return View('user.index');
}
}
and in routes.php
Route::get('/', function()
{
return view('home.index');
});
Route::get('user', function()
{
return view('user.index');
});
Laravel 5 command changes for view and controller see the documentation i was having same error before
If a case-insensitive comparison is acceptable, just use =
:
=IF(A1="ENG",1,0)
This is my solution with stack
import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'dart:async';
final themeColor = new Color(0xfff5a623);
final primaryColor = new Color(0xff203152);
final greyColor = new Color(0xffaeaeae);
final greyColor2 = new Color(0xffE8E8E8);
class LoadindScreen extends StatefulWidget {
LoadindScreen({Key key, this.title}) : super(key: key);
final String title;
@override
LoginScreenState createState() => new LoginScreenState();
}
class LoginScreenState extends State<LoadindScreen> {
SharedPreferences prefs;
bool isLoading = false;
Future<Null> handleSignIn() async {
setState(() {
isLoading = true;
});
prefs = await SharedPreferences.getInstance();
var isLoadingFuture = Future.delayed(const Duration(seconds: 3), () {
return false;
});
isLoadingFuture.then((response) {
setState(() {
isLoading = response;
});
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(
widget.title,
style: TextStyle(color: primaryColor, fontWeight: FontWeight.bold),
),
centerTitle: true,
),
body: Stack(
children: <Widget>[
Center(
child: FlatButton(
onPressed: handleSignIn,
child: Text(
'SIGN IN WITH GOOGLE',
style: TextStyle(fontSize: 16.0),
),
color: Color(0xffdd4b39),
highlightColor: Color(0xffff7f7f),
splashColor: Colors.transparent,
textColor: Colors.white,
padding: EdgeInsets.fromLTRB(30.0, 15.0, 30.0, 15.0)),
),
// Loading
Positioned(
child: isLoading
? Container(
child: Center(
child: CircularProgressIndicator(
valueColor: AlwaysStoppedAnimation<Color>(themeColor),
),
),
color: Colors.white.withOpacity(0.8),
)
: Container(),
),
],
));
}
}
Here is a solution to getting an array (list) of bytes:
I found that you needed to convert the Int to a byte first, before passing it to the bytes():
bytes(int('0xA2', 16).to_bytes(1, "big"))
Then create a list from the bytes:
list(frame)
So your code should look like:
frame = b""
frame += bytes(int('0xA2', 16).to_bytes(1, "big"))
frame += bytes(int('0x01', 16).to_bytes(1, "big"))
frame += bytes(int('0x02', 16).to_bytes(1, "big"))
frame += bytes(int('0x03', 16).to_bytes(1, "big"))
frame += bytes(int('0x04', 16).to_bytes(1, "big"))
bytesList = list(frame)
The question was for an array (list) of bytes. You accepted an answer that doesn't tell how to get a list so I'm not sure if this is actually what you needed.
The error shows you either didn't create the rails project yet or you're not in the rails project directory.
Suppose if you're working on myapp project. You've to move to that project directory on your command line and then generate the model. Here are some steps you can refer.
Example: Assuming you didn't create the Rails app yet:
$> rails new myapp
$> cd myapp
Now generate the model from your commandline.
$> rails generate model your_model_name
In Windows OS the following commands works for me.
mysql>Use <DatabaseName>
mysql>SOURCE C:/data/ScriptFile.sql;
No single quotes or double quotes around file name. Path would contain '/' instead of '\'.
If you are looking to just repopulate the fields with the values that were posted in them, then just echo the post value back into the field, like so:
<input type="text" name="myField1" value="<?php echo isset($_POST['myField1']) ? $_POST['myField1'] : '' ?>" />
Try below code
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<corners
android:bottomLeftRadius="30dp"
android:bottomRightRadius="30dp"
android:topLeftRadius="30dp"
android:topRightRadius="30dp" />
<solid android:color="#1271BB" />
<stroke
android:width="5dp"
android:color="#1271BB" />
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" /></shape>
A lot of people use (click) option so I will share this too.
<button (click)="function1()" (click)="function2()">Button</button>
For a working doodle/proof of concept of an approach to utilize pure JavaScript along with the familiar and declarative pattern behind XSLT's matching expressions and recursive templates, see https://gist.github.com/brettz9/0e661b3093764f496e36
(A similar approach might be taken for JSON.)
Note that the demo also relies on JavaScript 1.8 expression closures for convenience in expressing templates in Firefox (at least until the ES6 short form for methods may be implemented).
Disclaimer: This is my own code.
l = [1,2,3,4,5]
sum = 0
for x in l:
sum = sum + x
And you can change l for any list you want.
If you use Less you can directly use the following mixin:
.@{fa-css-prefix}-rotate-90 { .fa-icon-rotate(90deg, 1); }
You can use MemberwiseClone
obj myobj2 = (obj)myobj.MemberwiseClone();
The copy is a shallow copy which means the reference properties in the clone are pointing to the same values as the original object but that shouldn't be an issue in your case as the properties in obj
are of value types.
If you own the source code, you can also implement ICloneable
Whenever possible, you should avoid parsing the output of ls
(see Greg's wiki on the subject). Basically, the output of ls
will be ambiguous if there are funny characters in any of the filenames. It's also usually a waste of time. In this case, when you execute ls -d */
, what happens is that the shell expands */
to a list of subdirectories (which is already exactly what you want), passes that list as arguments to ls -d
, which looks at each one, says "yep, that's a directory all right" and prints it (in an inconsistent and sometimes ambiguous format). The ls
command isn't doing anything useful!
Well, ok, it is doing one thing that's useful: if there are no subdirectories, */
will get left as is, ls
will look for a subdirectory named "*", not find it, print an error message that it doesn't exist (to stderr), and not print the "*/" (to stdout).
The cleaner way to make an array of subdirectory names is to use the glob (*/
) without passing it to ls
. But in order to avoid putting "*/" in the array if there are no actual subdirectories, you should set nullglob first (again, see Greg's wiki):
shopt -s nullglob
array=(*/)
shopt -u nullglob # Turn off nullglob to make sure it doesn't interfere with anything later
echo "${array[@]}" # Note double-quotes to avoid extra parsing of funny characters in filenames
If you want to print an error message if there are no subdirectories, you're better off doing it yourself:
if (( ${#array[@]} == 0 )); then
echo "No subdirectories found" >&2
fi
I did it like this
CSS
html {
-webkit-transition: background-color 1s;
transition: background-color 1s;
}
html, body {
/* For the loading indicator to be vertically centered ensure */
/* the html and body elements take up the full viewport */
min-height: 100%;
}
html.loading {
/* Replace #333 with the background-color of your choice */
/* Replace loading.gif with the loading image of your choice */
background: #333 url('/Images/loading.gif') no-repeat 50% 50%;
/* Ensures that the transition only runs in one direction */
-webkit-transition: background-color 0;
transition: background-color 0;
}
body {
-webkit-transition: opacity 1s ease-in;
transition: opacity 1s ease-in;
}
html.loading body {
/* Make the contents of the body opaque during loading */
opacity: 0;
/* Ensures that the transition only runs in one direction */
-webkit-transition: opacity 0;
transition: opacity 0;
}
JS
$(document).ready(function () {
$(document).ajaxStart(function () {
$("html").addClass("loading");
});
$(document).ajaxStop(function () {
$("html").removeClass("loading");
});
$(document).ajaxError(function () {
$("html").removeClass("loading");
});
});
Mark the test with the ExpectedExceptionAttribute (this is the term in NUnit or MSTest; users of other unit testing frameworks may need to translate).
IE and Firefox both contain ways to execute JavaScript from CSS. As Paolo mentions, one way in IE is the expression
technique, but there's also the more obscure HTC behavior, in which a seperate XML that contains your script is loaded via CSS. A similar technique for Firefox exists, using XBL. These techniques don't exectue JavaScript from CSS directly, but the effect is the same.
Use a CSS rule like so:
body {
behavior:url(script.htc);
}
and within that script.htc file have something like:
<PUBLIC:COMPONENT TAGNAME="xss">
<PUBLIC:ATTACH EVENT="ondocumentready" ONEVENT="main()" LITERALCONTENT="false"/>
</PUBLIC:COMPONENT>
<SCRIPT>
function main()
{
alert("HTC script executed.");
}
</SCRIPT>
The HTC file executes the main()
function on the event ondocumentready
(referring to the HTC document's readiness.)
Firefox supports a similar XML-script-executing hack, using XBL.
Use a CSS rule like so:
body {
-moz-binding: url(script.xml#mycode);
}
and within your script.xml:
<?xml version="1.0"?>
<bindings xmlns="http://www.mozilla.org/xbl" xmlns:html="http://www.w3.org/1999/xhtml">
<binding id="mycode">
<implementation>
<constructor>
alert("XBL script executed.");
</constructor>
</implementation>
</binding>
</bindings>
All of the code within the constructor tag will be executed (a good idea to wrap code in a CDATA section.)
In both techniques, the code doesn't execute unless the CSS selector matches an element within the document. By using something like body
, it will execute immediately on page load.
Not related to variables, your example will also be solved by MOD
:
=Mod(VLOOKUP(A1, B:B, 1, 0);10)
Using Guava (r07) you can do this:
for(char c : Lists.charactersOf(someString)) { ... }
This has the convenience of using foreach while not copying the string to a new array. Lists.charactersOf
returns a view of the string as a List
.
The general approach to this is to:
main()
.main()
.A hint: look at System.nanoTime()
or System.currentTimeMillis()
.
Here's a guided approach.
Your authentication service issues a JWT token that is signed using a secret that is also available in your API service. The reason they need to be there too is that you will need to verify the tokens received to make sure you created them. The nice thing about JWTs is that their payload can hold claims as to what the user is authorised to access should different users have different access control levels.
That architecture renders authentication stateless: No need to store any tokens in a database unless you would like to handle token blacklisting (think banning users). Being stateless is crucial if you ever need to scale. That also frees up your API service from having to call the authentication server at all as the information they need for both authentication and authorisation are in the issued token.
Flow (no refresh tokens):
There are a couple of issues here. Namely, that auth token in the wrong hands provides unlimited access to a malicious user to pretend they are the affected user and call your APIs indefinitely. To handle that, tokens have an expiry date and clients are forced to request new tokens whenever expiry happens. That expiry is part of the token's payload. But if tokens are short-lived, do we require users to authenticate with their usernames and password every time? No. We do not want to ask a user for their password every 30min to an hour, and we do not want to persist that password anywhere in the client. To get around that issue, we introduce the concept of refresh tokens. They are longer lived tokens that serve one purpose: act as a user's password, authenticate them to get a new token. Downside is that with this architecture your authentication server needs to persist these refresh token in a database.
New flow (with refresh tokens):
OPTIONAL (banning users)
How do we ban users? Using that model there is no easy way to do so. Enhancement: Every persisted refresh token includes a blacklisted field and only issue new tokens if the refresh token isn't black listed.
Things to consider:
Polymorphism is the ability to:
Invoke an operation on an instance of a specialized type by only knowing its generalized type while calling the method of the specialized type and not that of the generalized type: it is dynamic polymorphism.
Define several methods having the save name but having differents parameters: it is static polymorphism.
The first if the historical definition and the most important.
It allows to create strongly-typed consistency of the class hierarchy and to do some magical things like managing lists of objects of differents types without knowing their types but only one of their parent type, as well as data bindings.
Here are some Shapes like Point, Line, Rectangle and Circle having the operation Draw() taking either nothing or either a parameter to set a timeout to erase it.
public class Shape
{
public virtual void Draw()
{
DoNothing();
}
public virtual void Draw(int timeout)
{
DoNothing();
}
}
public class Point : Shape
{
int X, Y;
public override void Draw()
{
DrawThePoint();
}
}
public class Line : Point
{
int Xend, Yend;
public override Draw()
{
DrawTheLine();
}
}
public class Rectangle : Line
{
public override Draw()
{
DrawTheRectangle();
}
}
var shapes = new List<Shape> { new Point(0,0), new Line(0,0,10,10), new rectangle(50,50,100,100) };
foreach ( var shape in shapes )
shape.Draw();
Here the Shape class and the Shape.Draw() methods should be marked as abstract.
They are not for to make understand.
Without polymorphism, using abstract-virtual-override, while parsing the shapes, it is only the Spahe.Draw() method that is called as the CLR don't know what method to call. So it call the method of the type we act on, and here the type is Shape because of the list declaration. So the code do nothing at all.
With polymorphism, the CLR is able to infer the real type of the object we act on using what is called a virtual table. So it call the good method, and here calling Shape.Draw() if Shape is Point calls the Point.Draw(). So the code draws the shapes.
Polymorphism in Java (Level 2)
You need to use JSON.stringify
to first serialize your object to JSON, and then specify the contentType
so your server understands it's JSON. This should do the trick:
$.ajax({
url: url,
type: "POST",
data: JSON.stringify(data),
contentType: "application/json",
complete: callback
});
Note that the JSON
object is natively available in browsers that support JavaScript 1.7 / ECMAScript 5 or later. If you need legacy support you can use json2.
Keep the previous path, don't overwrite it:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/
You can add it to your ~/.bashrc:
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/your/custom/path/' >> ~/.bashrc
This works for me
cd "C:\Program Files\SmartBear\SoapUI-5.6.0\bin"
start SoapUI-5.6.0.exe -w "C:\DATA\SoapUi\Workspaces\Production-workspace.xml"
exit
There is some edge case that maybe will be helpful for someone:
There is an option that you will have postgres.pid filled with some PID. If you restart your machine, and before PostgreSQL will be back again, some other process will take that PID.
If that will happen, both the pg_ctl status and brew service are asked about the PostgreSQL status, will tell you that it is up.
Just do ps aux | grep <yourPID>
and check if it is really PostgreSQL.
For ANSI character encoding:
translate(//variable, 'ABCDEFGHIJKLMNOPQRSTUVWXYZÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖØÙÚÛÜÝÞŸŽŠŒ', 'abcdefghijklmnopqrstuvwxyzàáâãäåæçèéêëìíîïðñòóôõöøùúûüýþÿžšœ')
I had just upgraded to VS 2013 from VS 2012 and the current user identity (HttpContext.User.Identity) was coming through as anonymous.
I tried changing the IIS express applicationhost.config, no difference.
The solution was to look at the properties of the web project, hit F4 to get the project properties when you have the top level of the project selected. Do not right click on the project and select properties, this is something entirely different.
Change Anonymous Authentication to be Disabled and Windows Authentication to be Enabled.
Works like gravy :)
KEY
is normally a synonym for INDEX
. The key attribute PRIMARY KEY
can also be specified as just KEY
when given in a column definition. This was implemented for compatibility with other database systems.
column_definition:
data_type [NOT NULL | NULL] [DEFAULT default_value]
[AUTO_INCREMENT] [UNIQUE [KEY] | [PRIMARY] KEY]
...
Ref: http://dev.mysql.com/doc/refman/5.1/en/create-table.html
In some brief tests I have found a combination of the two to be better in what I would call reasonably intensive Math:
Type: List<double[]>
Time: 00:00:05.1861300
Type: List<List<double>>
Time: 00:00:05.7941351
Type: double[rows * columns]
Time: 00:00:06.0547118
Running the Code:
int rows = 10000;
int columns = 10000;
IMatrix Matrix = new IMatrix(rows, columns);
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
for (int r = 0; r < Matrix.Rows; r++)
for (int c = 0; c < Matrix.Columns; c++)
Matrix[r, c] = Math.E;
for (int r = 0; r < Matrix.Rows; r++)
for (int c = 0; c < Matrix.Columns; c++)
Matrix[r, c] *= -Math.Log(Math.E);
stopwatch.Stop();
TimeSpan ts = stopwatch.Elapsed;
Console.WriteLine(ts.ToString());
I do wish we had some top notch Hardware Accelerated Matrix Classes like the .NET Team have done with the System.Numerics.Vectors
Class!
C# could be the best ML Language with a bit more work in this area!
bool isPow2 = ((x & ~(x-1))==x)? !!x : 0;
You can use a type converter (no error checking):
Ship ship = new Ship();
string value = "5.5";
var property = ship.GetType().GetProperty("Latitude");
var convertedValue = property.Converter.ConvertFrom(value);
property.SetValue(self, convertedValue);
In terms of organizing the code, you could create a kind-of mixin that would result in code like this:
Ship ship = new Ship();
ship.SetPropertyAsString("Latitude", "5.5");
This would be achieved with this code:
public interface MPropertyAsStringSettable { }
public static class PropertyAsStringSettable {
public static void SetPropertyAsString(
this MPropertyAsStringSettable self, string propertyName, string value) {
var property = TypeDescriptor.GetProperties(self)[propertyName];
var convertedValue = property.Converter.ConvertFrom(value);
property.SetValue(self, convertedValue);
}
}
public class Ship : MPropertyAsStringSettable {
public double Latitude { get; set; }
// ...
}
MPropertyAsStringSettable
can be reused for many different classes.
You can also create your own custom type converters to attach to your properties or classes:
public class Ship : MPropertyAsStringSettable {
public Latitude Latitude { get; set; }
// ...
}
[TypeConverter(typeof(LatitudeConverter))]
public class Latitude { ... }
you can also use $sce.trustAsHtml('"<h1>" + str + "</h1>"')
,if you want to know more detail, please refer to $sce
Use the hex code for a non-breaking space. Something like this:
.breadcrumbs a:before {
content: '>\00a0';
}
You can name the dataframe with the following, and then call the name wherever you like:
import pandas as pd
df = pd.DataFrame( data=np.ones([4,4]) )
df.name = 'Ones'
print df.name
>>>
Ones
Hope that helps.
In Controller ,
var DateObj = new Date();
$scope.YourParam = DateObj.getFullYear() + '-' + ('0' + (DateObj.getMonth() + 1)).slice(-2) + '-' + ('0' + DateObj.getDate()).slice(-2);
String target = "FOOBar";
target = target.replaceAll("(?i)foo", "");
System.out.println(target);
Output:
Bar
It's worth mentioning that replaceAll
treats the first argument as a regex pattern, which can cause unexpected results. To solve this, also use Pattern.quote
as suggested in the comments.
You can go to Design mode and select "Fix" at the bottom of the warning. Then a pop up will appear (seems like it's going to register the new string) and voila, the error is fixed.
If you use CakePHP
you can use their method CakeText::uuid();
from the CakeText class to generate a RFC4122 uuid.
In your string file use this
<string name="redeem_point"> You currently have %s points(%s points = 1 %s)</string>
And in your code use as accordingly
coinsTextTV.setText(String.format(getContext().getString(R.string.redeem_point), rewardPoints.getReward_points()
, rewardPoints.getConversion_rate(), getString(R.string.rs)));
In my case the issue was a missing 's' in the HTTP URL. Error was: "HttpHostConnectException: Connect to someendpoint.com:80 [someendpoint.com/127.0.0.1] failed: Connection refused" End point and IP obviously changed to protect the network.
While this isn't currently available, this fascinating article discusses the use of the Shadow DOM, which is a technique used by browsers to limit how far cascading style sheets cascade, so to speak. He doesn't provide any APIs, as it seems that there are no current libraries able to provide access to this part of the DOM, but it's worth a look. There are links to mailing lists at the bottom of the article if this intrigues you.
There is also an easy way for copying via the clipboard:
Another approach is to use android.intent.action.USER_PRESENT
instead of android.intent.action.BOOT_COMPLETED
to avoid slow downs during the boot process. But this is only true
if the user has enabled the lock Screen - otherwise this intent is never broadcasted.
Reference blog - The Problem With Android’s ACTION_USER_PRESENT Intent
Use the Base Context of the Activity in which your fragment resides to start an Intent.
Intent j = new Intent(fBaseCtx, NewactivityName.class);
startActivity(j);
where fBaseCtx
is BaseContext
of your current activity.
You can get it as fBaseCtx = getBaseContext();
You can try pushing elements with reverse sign. Eg: To add a=2 & b=5 and then poll b=5.
PriorityQueue<Integer> pq = new PriorityQueue<>();
pq.add(-a);
pq.add(-b);
System.out.print(-pq.poll());
Once you poll the head of the queue, reverse the sign for your usage. This will print 5 (larger element). Can be used in naive implementations. Definitely not a reliable fix. I don't recommend it.
Finally, I found a solution to this problem without reinstalling npm and I'm posting it because in future it will help someone, Most of the time this error occurs javascript heap went out of the memory. As the error says itself this is not a problem with npm. Only we have to do is
instead of,
npm run build -prod
extend the javascript memory by following,
node --max_old_space_size=4096 node_modules/@angular/cli/bin/ng build --prod
Unfortunately, the MinGW-w64 installer you used sometimes has this issue. I myself am not sure about why this happens (I think it has something to do with Sourceforge URL redirection or whatever that the installer currently can't handle properly enough).
Anyways, if you're already planning on using MSYS2, there's no need for that installer.
Download MSYS2 from this page (choose 32 or 64-bit according to what version of Windows you are going to use it on, not what kind of executables you want to build, both versions can build both 32 and 64-bit binaries).
After the install completes, click on the newly created "MSYS2 Shell" option under either MSYS2 64-bit
or MSYS2 32-bit
in the Start menu. Update MSYS2 according to the wiki (although I just do a pacman -Syu
, ignore all errors and close the window and open a new one, this is not recommended and you should do what the wiki page says).
Install a toolchain
a) for 32-bit:
pacman -S mingw-w64-i686-gcc
b) for 64-bit:
pacman -S mingw-w64-x86_64-gcc
install any libraries/tools you may need. You can search the repositories by doing
pacman -Ss name_of_something_i_want_to_install
e.g.
pacman -Ss gsl
and install using
pacman -S package_name_of_something_i_want_to_install
e.g.
pacman -S mingw-w64-x86_64-gsl
and from then on the GSL library is automatically found by your MinGW-w64 64-bit compiler!
Open a MinGW-w64 shell:
a) To build 32-bit things, open the "MinGW-w64 32-bit Shell"
b) To build 64-bit things, open the "MinGW-w64 64-bit Shell"
Verify that the compiler is working by doing
gcc -v
If you want to use the toolchains (with installed libraries) outside of the MSYS2 environment, all you need to do is add <MSYS2 root>/mingw32/bin
or <MSYS2 root>/mingw64/bin
to your PATH
.
The problem with the very idea is that the user has to have an email client, which is not the case if he rely on webmails, which is the case for many users. (at least there was no turn-around to redirect to this webmail when I investigated the issue a dozen years ago).
That's why the normal solution is to rely on php mail() for sending emails (server-side, then).
But if nowadays "email client" is always set, automatically, potentially to a webmail client, I'll be happy to know.
From the doc for path.resolve
:
The resulting path is normalized and trailing slashes are removed unless the path is resolved to the root directory.
But path.join
keeps trailing slashes
So
__dirname = '/';
path.resolve(__dirname, 'foo/'); // '/foo'
path.join(__dirname, 'foo/'); // '/foo/'
I was also interested in this, so I did a little performance comparison (using perfplot, a pet project of mine). Result:
y = np.bincount(a)
ii = np.nonzero(y)[0]
out = np.vstack((ii, y[ii])).T
is by far the fastest. (Note the log-scaling.)
Code to generate the plot:
import numpy as np
import pandas as pd
import perfplot
from scipy.stats import itemfreq
def bincount(a):
y = np.bincount(a)
ii = np.nonzero(y)[0]
return np.vstack((ii, y[ii])).T
def unique(a):
unique, counts = np.unique(a, return_counts=True)
return np.asarray((unique, counts)).T
def unique_count(a):
unique, inverse = np.unique(a, return_inverse=True)
count = np.zeros(len(unique), np.int)
np.add.at(count, inverse, 1)
return np.vstack((unique, count)).T
def pandas_value_counts(a):
out = pd.value_counts(pd.Series(a))
out.sort_index(inplace=True)
out = np.stack([out.keys().values, out.values]).T
return out
perfplot.show(
setup=lambda n: np.random.randint(0, 1000, n),
kernels=[bincount, unique, itemfreq, unique_count, pandas_value_counts],
n_range=[2 ** k for k in range(26)],
logx=True,
logy=True,
xlabel="len(a)",
)
Example query:
SELECT TO_CHAR(TO_DATE('2017-08-23','YYYY-MM-DD'), 'MM/DD/YYYY') FROM dual;
I would give your tds a specific class, e.g. data-cell, and then use something like this:
$("td.data-cell").each(function () {
// 'this' is now the raw td DOM element
var txt = $(this).html();
});
The idea is that for speed and cache considerations, operands should be read from addresses aligned to their natural size. To make this happen, the compiler pads structure members so the following member or following struct will be aligned.
struct pixel {
unsigned char red; // 0
unsigned char green; // 1
unsigned int alpha; // 4 (gotta skip to an aligned offset)
unsigned char blue; // 8 (then skip 9 10 11)
};
// next offset: 12
The x86 architecture has always been able to fetch misaligned addresses. However, it's slower and when the misalignment overlaps two different cache lines, then it evicts two cache lines when an aligned access would only evict one.
Some architectures actually have to trap on misaligned reads and writes, and early versions of the ARM architecture (the one that evolved into all of today's mobile CPUs) ... well, they actually just returned bad data on for those. (They ignored the low-order bits.)
Finally, note that cache lines can be arbitrarily large, and the compiler doesn't attempt to guess at those or make a space-vs-speed tradeoff. Instead, the alignment decisions are part of the ABI and represent the minimum alignment that will eventually evenly fill up a cache line.
TL;DR: alignment is important.
You can also use the following syntax:-
INSERT INTO MyTable (FirstCol, SecondCol)
SELECT 'First' ,1
UNION ALL
SELECT 'Second' ,2
UNION ALL
SELECT 'Third' ,3
UNION ALL
SELECT 'Fourth' ,4
UNION ALL
SELECT 'Fifth' ,5
GO
From here
Sorting HashMap by value in Java:
public class HashMapSortByValue {
public static void main(String[] args) {
HashMap<Long,String> unsortMap = new HashMap<Long,String>();
unsortMap.put(5l,"B");
unsortMap.put(8l,"A");
unsortMap.put(2l, "D");
unsortMap.put(7l,"C" );
System.out.println("Before sorting......");
System.out.println(unsortMap);
HashMap<Long,String> sortedMapAsc = sortByComparator(unsortMap);
System.out.println("After sorting......");
System.out.println(sortedMapAsc);
}
public static HashMap<Long,String> sortByComparator(
HashMap<Long,String> unsortMap) {
List<Map.Entry<Long,String>> list = new LinkedList<Map.Entry<Long,String>>(
unsortMap.entrySet());
Collections.sort(list, new Comparator<Map.Entry<Long,String>> () {
public int compare(Map.Entry<Long,String> o1, Map.Entry<Long,String> o2) {
return o1.getValue().compareTo(o2.getValue());
}
});
HashMap<Long,String> sortedMap = new LinkedHashMap<Long,String>();
for (Entry<Long,String> entry : list) {
sortedMap.put(entry.getKey(), entry.getValue());
}
return sortedMap;
}
}
This also works like a charm
<form>_x000D_
<label class="radio-inline">_x000D_
<input type="radio" name="optradio" checked>Option 1_x000D_
</label>_x000D_
<label class="radio-inline">_x000D_
<input type="radio" name="optradio">Option 2_x000D_
</label>_x000D_
<label class="radio-inline">_x000D_
<input type="radio" name="optradio">Option 3_x000D_
</label>_x000D_
</form>
_x000D_
Note that you can still do:
s[0] = 'h';
s[1] = 'e';
s[2] = 'l';
s[3] = 'l';
s[4] = 'o';
s[5] = '\0';
Give:
keytool -list -keystore ~/.android/debug.keystore
Also in your line there is a space in keystore. Please check it.
Quick and dirty way (e.g. to see how data is stored in oracle)
SQL> select dump(dummy) dump_dummy, dummy
, dump(10) dump_ten
from dual
DUMP_DUMMY DUMMY DUMP_TEN
---------------- ----- --------------------
Typ=1 Len=1: 88 X Typ=2 Len=2: 193,11
1 row selected.
will show that dummy column in table sys.dual has typ=1 (varchar2), while 10 is Typ=2 (number).
Try this for Xamarin.Android (Cross Platform)
edittext.EditorAction += (object sender, TextView.EditorActionEventArgs e) {
if (e.ActionId.Equals (global::Android.Views.InputMethods.ImeAction.Done)) {
//TODO Something
}
};
$array = json_decode(json_encode((array)simplexml_load_string($xml)),true);
2016 Update
Use the Sharing Debugger to figure out what your problems are.
Make sure you're following the Facebook Sharing Best Practices.
Make sure you're using the Open Graph Markup correctly.
Original Answer
I agree with what has already been said here, but per documentation on the Facebook developer site, you might want to use the following meta tags.
<meta property="og:title" content="title" />
<meta property="og:description" content="description" />
<meta property="og:image" content="thumbnail_image" />
If you are not able to accomplish your goal with meta tags and you need a URL embedded version, see @Lelis718's answer below.
I dont believe you can without cropping them, I mean you could make the divs the same height by using jquery however this will not make the images the same size.
You could take a look at using Masonry which will make this look decent.
pst = con.createStatement(); ResultSet resultSet= pst.executeQuery(query);
String str1 = "<table>";
int i = 1;
while(resultSet.next()) {
str1+= "</tr><td>"+i+"</td>"+
"<td>"+resultSet.getString("first_name")+"</td>"+
"<td>"+resultSet.getString("last_name")+"</td>"+
"<td>"+resultSet.getString("email_id")+"</td>"+
"<td>"+resultSet.getString("dob") +"</td>"+
"</tr>";
i++;
}
str1 =str1+"<table>";
model.addAttribute("list",str1);
return "userlist"; //Sending to views .jsp
var list = (from t in ctn.Items
where t.DeliverySelection == true && t.Delivery.SentForDelivery == null
orderby t.Delivery.SubmissionDate
select t).Take(5);
Check if the RAM configured in HAX installation is equal or lower than your AVD RAM (How to fix: "HAX is not working and emulator runs in emulation mode") that fixed mine.
Dictionary is typed (so valuetypes don't need boxing), a Hashtable isn't (so valuetypes need boxing). Hashtable has a nicer way of obtaining a value than dictionary IMHO, because it always knows the value is an object. Though if you're using .NET 3.5, it's easy to write an extension method for dictionary to get similar behavior.
If you need multiple values per key, check out my sourcecode of MultiValueDictionary here: multimap in .NET
Wherever you want to apply a break, either a table
or tr
, you needs to give a class for ex. page-break
with CSS as mentioned below:
/* class works for table row */
table tr.page-break{
page-break-after:always
}
<tr class="page-break">
/* class works for table */
table.page-break{
page-break-after:always
}
<table class="page-break">
and it will work as you required
Alternatively, you can also have div
structure for same:
CSS:
@media all {
.page-break { display: none; }
}
@media print {
.page-break { display: block; page-break-before: always; }
}
Div:
<div class="page-break"></div>
Try this:
var momentObj = $("#start_ts").datepicker("getDate");
var yourDate = momentObj.format('L');
Unfortunately this is not supported in Entity Framework. It was on the roadmap for EF 6, but it got pushed back: Workitem 299: Unique Constraints (Unique Indexes)
The simplest approach would be to use LINQ:
var count = text.TakeWhile(c => c == '$').Count();
There are certainly more efficient approaches, but that's probably the simplest.
Because you send custom headers so your CORS request is not a simple request, so the browser first sends a preflight OPTIONS request to check that the server allows your request.
If you turn on CORS on the server then your code will work. You can also use JavaScript fetch instead (here)
let url='https://server.test-cors.org/server?enable=true&status=200&methods=POST&headers=My-First-Header,My-Second-Header';_x000D_
_x000D_
_x000D_
$.ajax({_x000D_
type: 'POST',_x000D_
url: url,_x000D_
headers: {_x000D_
"My-First-Header":"first value",_x000D_
"My-Second-Header":"second value"_x000D_
}_x000D_
}).done(function(data) {_x000D_
alert(data[0].request.httpMethod + ' was send - open chrome console> network to see it');_x000D_
});
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
_x000D_
Here is an example configuration which turns on CORS on nginx (nginx.conf file):
location ~ ^/index\.php(/|$) {_x000D_
..._x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin" always;_x000D_
add_header 'Access-Control-Allow-Credentials' 'true' always;_x000D_
if ($request_method = OPTIONS) {_x000D_
add_header 'Access-Control-Allow-Origin' "$http_origin"; # DO NOT remove THIS LINES (doubled with outside 'if' above)_x000D_
add_header 'Access-Control-Allow-Credentials' 'true';_x000D_
add_header 'Access-Control-Max-Age' 1728000; # cache preflight value for 20 days_x000D_
add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';_x000D_
add_header 'Access-Control-Allow-Headers' 'My-First-Header,My-Second-Header,Authorization,Content-Type,Accept,Origin';_x000D_
add_header 'Content-Length' 0;_x000D_
add_header 'Content-Type' 'text/plain charset=UTF-8';_x000D_
return 204;_x000D_
}_x000D_
}
_x000D_
Here is an example configuration which turns on CORS on Apache (.htaccess file)
# ------------------------------------------------------------------------------_x000D_
# | Cross-domain Ajax requests |_x000D_
# ------------------------------------------------------------------------------_x000D_
_x000D_
# Enable cross-origin Ajax requests._x000D_
# http://code.google.com/p/html5security/wiki/CrossOriginRequestSecurity_x000D_
# http://enable-cors.org/_x000D_
_x000D_
# <IfModule mod_headers.c>_x000D_
# Header set Access-Control-Allow-Origin "*"_x000D_
# </IfModule>_x000D_
_x000D_
#Header set Access-Control-Allow-Origin "http://example.com:3000"_x000D_
#Header always set Access-Control-Allow-Credentials "true"_x000D_
_x000D_
Header set Access-Control-Allow-Origin "*"_x000D_
Header always set Access-Control-Allow-Methods "POST, GET, OPTIONS, DELETE, PUT"_x000D_
Header always set Access-Control-Allow-Headers "My-First-Header,My-Second-Header,Authorization, content-type, csrf-token"
_x000D_
You can try this:table1.GroupBy(t => t.Text).Select(shape => shape.r)).Distinct();
This is an adapted version of the answer given by Vivien Barousse with the update from Vulcan applied. In this example I use sliders to dynamically retreive the RGB values from three sliders and display that color in a rectangle. Then in method toHex() I use the values to create a color and display the respective Hex color code.
This example does not include the proper constraints for the GridBagLayout. Though the code will work, the display will look strange.
public class HexColor
{
public static void main (String[] args)
{
JSlider sRed = new JSlider(0,255,1);
JSlider sGreen = new JSlider(0,255,1);
JSlider sBlue = new JSlider(0,255,1);
JLabel hexCode = new JLabel();
JPanel myPanel = new JPanel();
GridBagLayout layout = new GridBagLayout();
JFrame frame = new JFrame();
//set frame to organize components using GridBagLayout
frame.setLayout(layout);
//create gray filled rectangle
myPanel.paintComponent();
myPanel.setBackground(Color.GRAY);
//In practice this code is replicated and applied to sGreen and sBlue.
//For the sake of brevity I only show sRed in this post.
sRed.addChangeListener(
new ChangeListener()
{
@Override
public void stateChanged(ChangeEvent e){
myPanel.setBackground(changeColor());
myPanel.repaint();
hexCode.setText(toHex());
}
}
);
//add each component to JFrame
frame.add(myPanel);
frame.add(sRed);
frame.add(sGreen);
frame.add(sBlue);
frame.add(hexCode);
} //end of main
//creates JPanel filled rectangle
protected void paintComponent(Graphics g)
{
super.paintComponent(g);
g.drawRect(360, 300, 10, 10);
g.fillRect(360, 300, 10, 10);
}
//changes the display color in JPanel
private Color changeColor()
{
int r = sRed.getValue();
int b = sBlue.getValue();
int g = sGreen.getValue();
Color c;
return c = new Color(r,g,b);
}
//Displays hex representation of displayed color
private String toHex()
{
Integer r = sRed.getValue();
Integer g = sGreen.getValue();
Integer b = sBlue.getValue();
Color hC;
hC = new Color(r,g,b);
String hex = Integer.toHexString(hC.getRGB() & 0xffffff);
while(hex.length() < 6){
hex = "0" + hex;
}
hex = "Hex Code: #" + hex;
return hex;
}
}
A huge thank you to both Vivien and Vulcan. This solution works perfectly and was super simple to implement.
XmlSerializer xs = new XmlSerializer(typeof(User), new XmlRootAttribute("yourRootName"));
As extension might contain more or less that three characters the following will test for an extension regardless of the length of it.
Try this:
$allowedExtensions = array( 'mkv', 'mp3', 'flac' );
$temp = explode(".", $_FILES[$file]["name"]);
$extension = strtolower(end($temp));
if( in_array( $extension, $allowedExtensions ) ) { ///
to check for all characters after the last '.'
Refering to the very first question, I am looking into the same. The result I get, recording a macro, is, starting by selecting cell A76:
Sub find_last_row()
Range("A76").Select
Range(Selection, Selection.End(xlDown)).Select
End Sub
I came up with this:
int counter = 0;
bool checkPrime(int x) {
for (int y = x; y > 0; y--){
if (x%y == 0) {
counter++;
}
}
if (counter == 2) {
counter = 0; //resets counter for next input
return true; //if its only divisible by two numbers (itself and one) its a prime
}
else counter = 0;
return false;
}
The 'best' way to do this would be to set a property on a view object once the update is successful. You can then access this property in the view and inform the user accordingly.
Having said that it would be possible to trigger an alert from the controller code by doing something like this -
public ActionResult ActionName(PostBackData postbackdata)
{
//your DB code
return new JavascriptResult { Script = "alert('Successfully registered');" };
}
You can find further info in this question - How to display "Message box" using MVC3 controller
I think the answer to the question is because .net uses string interning something that might cause equal strings to point to the same object (since a strings are mutable this is not a problem)
(I'm not talking about the overridden equality operator on the string class)
An example,
d <- data.frame(x1=rnorm(10),
x2=rnorm(10),
x3=rnorm(10))
cor(d) # get correlations (returns matrix)
While this is not a GUI tool, my quick tests indicated that diffxml has some promise. The author appears to have thought about the complexities of representing diffs for nested elements in a standardized way (his DUL - Delta Update Language specification).
Installing and running his tools, I can say that the raw text output is quite clear and concise. It doesn't offer the same degree of immediate apprehension as a GUI tool, but given that the output is standardized as DUL, perhaps you would be able to take that and build a tool to generate a visual representation. I'd certainly love to see one.
The author's "links" section does reference a few other XML differencing tools, but as you mentioned in your post, they're all proprietary.
I think the best solution I have come across is on this stackoverflow.
This short jQuery code allows all your hover effects to show on click or touch..
No need to add anything within the function.
$('body').on('touchstart', function() {});
Hope this helps.
Try sudo npm uninstall cordova -g
to uninstall it globally and then just npm install cordova
without the -g flag after cd
ing to the local app directory
Try this
$('#testID').addClass('nameOfClass');
or
$('#testID').removeClass('nameOfClass');
Try This.....
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Timer1.Start()
End Sub
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Label12.Text = TimeOfDay.ToString("h:mm:ss tt")
End Sub
Always codes should be simple and easy to perform tasks for fast performance and for good reliability.
To add a page to a TabControl, the following code is enough.
If Tabcontrol1.Controls.Contains(TabPage1) Then
else
Tabcontrol1.Controls.Add(TabPage1)
End If
To remove a page from a TabControl, the following code is enough.
If Tabcontrol1.Controls.Contains(TabPage1) Then Tabcontrol1.Controls.Remove(TabPage1) End If
I wish to thank Stackoverflow.com for providing sincere help to programmers.
Use:
git checkout -- <file>
To discard the changes in the working directory.
If you can use a simple delimiter, a very simple oneliner is this:
for i in a,b c_s,d ; do
KEY=${i%,*};
VAL=${i#*,};
echo $KEY" XX "$VAL;
done
Hereby i
is filled with character sequences like "a,b"
and "c_s,d"
. each separated by spaces. After the do
we use parameter substitution to extract the part before the comma ,
and the part after it.
check below link in which you can download suitable AjaxControlToolkit which suits your .NET version.
http://ajaxcontroltoolkit.codeplex.com/releases/view/43475
AjaxControlToolkit.Binary.NET4.zip - used for .NET 4.0
AjaxControlToolkit.Binary.NET35.zip - used for .NET 3.5
Well if you are getting into a linux machine you can use the package manager of that linux distro.
If you are using Ubuntu just use apt-get search python, check the list and do apt-get install python2.7 (not sure if python2.7 or python-2.7, check the list)
You could use yum in fedora and do the same.
if you want to install it on your windows machine i dont know any package manager, i would download the wget for windows, donwload the package from python.org and install it
Simple:
Use <section>
.
and use <a href="page.html#tips">Visit the Useful Tips Section</a>
Here is an example of reading and taking at face value a chardet
encoding prediction, reading n_lines
from the file in the event it is large.
chardet
also gives you a probability (i.e. confidence
) of it's encoding prediction (haven't looked how they come up with that), which is returned with its prediction from chardet.predict()
, so you could work that in somehow if you like.
def predict_encoding(file_path, n_lines=20):
'''Predict a file's encoding using chardet'''
import chardet
# Open the file as binary data
with open(file_path, 'rb') as f:
# Join binary lines for specified number of lines
rawdata = b''.join([f.readline() for _ in range(n_lines)])
return chardet.detect(rawdata)['encoding']
This worked for me:
refreshTableSorce() {
this.dataSource = new MatTableDataSource<Element>(this.newSource);
}
I was using below command
git clone -b branch-name https://<username>@bitbucket.org/<repository>.git
Issue got resolved after adding password with username (see below command):
git clone -b branch-name https://<username>:<password>@bitbucket.org/<repository>.git
If you use nano with a language like python (as in your example) it's also a good idea to convert tabs to spaces.
Edit your ~/.nanorc file (or create it) and add:
set tabsize 4
set tabstospaces
If you already got a file with tabs and want to convert them to spaces i recommend the expand
command (shell):
expand -4 input.py > output.py
If you're not bound to curl, you might want to use wget in recursive mode but restricting it to one level of recursion, try the following;
wget --no-verbose --no-parent --recursive --level=1\
--no-directories --user=login --password=pass ftp://ftp.myftpsite.com/
--no-parent
: Do not ever ascend to the parent directory when retrieving recursively.--level=depth
: Specify recursion maximum depth level depth. The default maximum depth is five layers.--no-directories
: Do not create a hierarchy of directories when retrieving recursively.You can load the script you need with a promise based solution:
export default {
data () {
return { is_script_loading: false }
},
created () {
// If another component is already loading the script
this.$root.$on('loading_script', e => { this.is_script_loading = true })
},
methods: {
load_script () {
let self = this
return new Promise((resolve, reject) => {
// if script is already loading via another component
if ( self.is_script_loading ){
// Resolve when the other component has loaded the script
this.$root.$on('script_loaded', resolve)
return
}
let script = document.createElement('script')
script.setAttribute('src', 'https://www.google.com/recaptcha/api.js')
script.async = true
this.$root.$emit('loading_script')
script.onload = () => {
/* emit to global event bus to inform other components
* we are already loading the script */
this.$root.$emit('script_loaded')
resolve()
}
document.head.appendChild(script)
})
},
async use_script () {
try {
await this.load_script()
// .. do what you want after script has loaded
} catch (err) { console.log(err) }
}
}
}
Please note that this.$root
is a little hacky and you should use a vuex or eventHub solution for the global events instead.
You would make the above into a component and use it wherever needed, it will only load the script when used.
NOTE: This is a Vue 2.x based solution. Vue 3 has stopped supporting $on
.
Here's a bit more information specifically regarding the PATH variable in Lion OS 10.7.x:
If you need to set the PATH globally, the PATH is built by the system in the following order:
/private/etc/paths
, one path per line/private/etc/paths.d
. Each file in that folder can contain multiple paths, one path per line. Load order is determined by the file name first, and then the order of the lines in the file.setenv PATH
statement in /private/etc/launchd.conf
, which will append that path to the path already built in #1 and #2 (you must not use $PATH to reference the PATH variable that has been built so far). But, setting the PATH here is completely unnecessary given the other two options, although this is the place where other global environment variables can be set for all users.These paths and variables are inherited by all users and applications, so they are truly global -- logging out and in will not reset these paths -- they're built for the system and are created before any user is given the opportunity to login, so changes to these require a system restart to take effect.
BTW, a clean install of OS 10.7.x Lion doesn't have an environment.plist
that I can find, so it may work but may also be deprecated.
Refer to this link: As there are various options to shut the warning off depending on the minSdkVersion, it is set below 20:
android {
defaultConfig {
...
minSdkVersion 15
targetSdkVersion 26
multiDexEnabled true
}
... }
dependencies { compile 'com.android.support:multidex:1.0.3' }
If you have a minSdkVersion greater than 20 in your build.gradle set use the following to shut down the warning:
android {
defaultConfig {
...
minSdkVersion 21
targetSdkVersion 26
multiDexEnabled true
}
... }
Update dependencies as follows:
dependencies {
implementation 'com.android.support:multidex:1.0.3'
}
Again the only difference is the keywords in dependencies:
minSdkVersion below 20: use compile
minSdkVersion above 20: use implementation
The CBO builds a decision tree, estimating the costs of each possible execution path available per query. The costs are set by the CPU_cost or I/O_cost parameter set on the instance. And the CBO estimates the costs, as best it can with the existing statistics of the tables and indexes that the query will use. You should not tune your query based on cost alone. Cost allows you to understand WHY the optimizer is doing what it does. Without cost you could figure out why the optimizer chose the plan it did. Lower cost does not mean a faster query. There are cases where this is true and there will be cases where this is wrong. Cost is based on your table stats and if they are wrong the cost is going to be wrong.
When tuning your query, you should take a look at the cardinality and the number of rows of each step. Do they make sense? Is the cardinality the optimizer is assuming correct? Is the rows being return reasonable. If the information present is wrong then its very likely the optimizer doesn't have the proper information it needs to make the right decision. This could be due to stale or missing statistics on the table and index as well as cpu-stats. Its best to have stats updated when tuning a query to get the most out of the optimizer. Knowing your schema is also of great help when tuning. Knowing when the optimizer chose a really bad decision and pointing it in the correct path with a small hint can save a load of time.
Use @Html.Raw()
with caution as you may cause more trouble with encoding and security. I understand the use case as I had to do this myself, but carefully... Just avoid allowing all text through. For example only preserve/convert specific character sequences and always encode the rest:
@Html.Raw(Html.Encode(myString).Replace("\n", "<br/>"))
Then you have peace of mind that you haven't created a potential security hole and any special/foreign characters are displayed correctly in all browsers.
Finally.. I used:
componentDidMount() {
window.scrollTo(0, 0)
}
EDIT: React v16.8+
useEffect(() => {
window.scrollTo(0, 0)
}, [])
I've used this (or very similar) code to add several TextViews to a LinearLayout:
// Quick & dirty pre-made list of text labels...
String names[] = {"alpha", "beta", "gamma", "delta", "epsilon"};
int namesLength = 5;
// Create a LayoutParams...
LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.FILL_PARENT);
// Get existing UI containers...
LinearLayout nameButtons = (LinearLayout) view.findViewById(R.id.name_buttons);
TextView label = (TextView) view.findViewById(R.id.master_label);
TextView tv;
for (int i = 0; i < namesLength; i++) {
// Grab the name for this "button"
final String name = names[i];
tv = new TextView(context);
tv.setText(name);
// TextViews CAN have OnClickListeners
tv.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
label.setText("Clicked button for " + name);
}
});
nameButtons.addView(tv, params);
}
The main difference between this and dicklaw795's code is it doesn't set() and re-get() the ID for each TextView--I found it unnecessary, although I may need it to later identify each button in a common handler routine (e.g. one called by onClick() for each TextView).
CollectionViews are very powerful, and they come at a price. Lots, and lots of options. As omz said:
there are multiple ways you could change the number of columns
I'd suggest implementing the <UICollectionViewDelegateFlowLayout>
Protocol, giving you access to the following methods in which you can have greater control over the layout of your UICollectionView
, without the need for subclassing it:
collectionView:layout:insetForSectionAtIndex:
collectionView:layout:minimumInteritemSpacingForSectionAtIndex:
collectionView:layout:minimumLineSpacingForSectionAtIndex:
collectionView:layout:referenceSizeForFooterInSection:
collectionView:layout:referenceSizeForHeaderInSection:
collectionView:layout:sizeForItemAtIndexPath:
Also, implementing the following method will force your UICollectionView to update it's layout on an orientation change: (say you wanted to re-size the cells for landscape and make them stretch)
-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation
duration:(NSTimeInterval)duration{
[self.myCollectionView.collectionViewLayout invalidateLayout];
}
Additionally, here are 2 really good tutorials on UICollectionViews
:
http://www.raywenderlich.com/22324/beginning-uicollectionview-in-ios-6-part-12
It appears that window.webkitNotifications
has already been deprecated and removed. However, there's a new API, and it appears to work in the latest version of Firefox as well.
function notifyMe() {
// Let's check if the browser supports notifications
if (!("Notification" in window)) {
alert("This browser does not support desktop notification");
}
// Let's check if the user is okay to get some notification
else if (Notification.permission === "granted") {
// If it's okay let's create a notification
var notification = new Notification("Hi there!");
}
// Otherwise, we need to ask the user for permission
// Note, Chrome does not implement the permission static property
// So we have to check for NOT 'denied' instead of 'default'
else if (Notification.permission !== 'denied') {
Notification.requestPermission(function (permission) {
// Whatever the user answers, we make sure we store the information
if(!('permission' in Notification)) {
Notification.permission = permission;
}
// If the user is okay, let's create a notification
if (permission === "granted") {
var notification = new Notification("Hi there!");
}
});
} else {
alert(`Permission is ${Notification.permission}`);
}
}
The EditorFor html helper does not have overloads that take HTML attributes. In this case, you need to use something more specific like TextBoxFor:
<div class="editor-field">
@Html.TextBoxFor(model => model.userName, new
{ disabled = "disabled", @readonly = "readonly" })
</div>
You can still use EditorFor, but you will need to have a TextBoxFor in a custom EditorTemplate:
public class MyModel
{
[UIHint("userName")]
public string userName { ;get; set; }
}
Then, in your Views/Shared/EditorTemplates folder, create a file userName.cshtml. In that file, put this:
@model string
@Html.TextBoxFor(m => m, new { disabled = "disabled", @readonly = "readonly" })
Try this:
window.open(url, '_blank');
This will open in new tab (if your code is synchronous and in this case it is. in other case it would open a window)
I have a 645GB text file, and none of the earlier exact solutions (e.g. wc -l
) returned an answer within 5 minutes.
Instead, here is Python script that computes the approximate number of lines in a huge file. (My text file apparently has about 5.5 billion lines.) The Python script does the following:
A. Counts the number of bytes in the file.
B. Reads the first N
lines in the file (as a sample) and computes the average line length.
C. Computes A/B as the approximate number of lines.
It follows along the line of Nico's answer, but instead of taking the length of one line, it computes the average length of the first N
lines.
Note: I'm assuming an ASCII text file, so I expect the Python len()
function to return the number of chars as the number of bytes.
Put this code into a file line_length.py
:
#!/usr/bin/env python
# Usage:
# python line_length.py <filename> <N>
import os
import sys
import numpy as np
if __name__ == '__main__':
file_name = sys.argv[1]
N = int(sys.argv[2]) # Number of first lines to use as sample.
file_length_in_bytes = os.path.getsize(file_name)
lengths = [] # Accumulate line lengths.
num_lines = 0
with open(file_name) as f:
for line in f:
num_lines += 1
if num_lines > N:
break
lengths.append(len(line))
arr = np.array(lengths)
lines_count = len(arr)
line_length_mean = np.mean(arr)
line_length_std = np.std(arr)
line_count_mean = file_length_in_bytes / line_length_mean
print('File has %d bytes.' % (file_length_in_bytes))
print('%.2f mean bytes per line (%.2f std)' % (line_length_mean, line_length_std))
print('Approximately %d lines' % (line_count_mean))
Invoke it like this with N
=5000.
% python line_length.py big_file.txt 5000
File has 645620992933 bytes.
116.34 mean bytes per line (42.11 std)
Approximately 5549547119 lines
So there are about 5.5 billion lines in the file.
if it is 64bit them - C:\Program Files (x86)\Reference Assemblies\Microsoft\WindowsPowerShell**3.0**
and version could be different
enum Numeral {
I(1), IV(4), V(5), IX(9), X(10), XL(40), L(50), XC(90), C(100), CD(400), D(500), CM(900), M(1000);
int weight;
Numeral(int weight) {
this.weight = weight;
}
};
public static String roman(long n) {
if( n <= 0) {
throw new IllegalArgumentException();
}
StringBuilder buf = new StringBuilder();
final Numeral[] values = Numeral.values();
for (int i = values.length - 1; i >= 0; i--) {
while (n >= values[i].weight) {
buf.append(values[i]);
n -= values[i].weight;
}
}
return buf.toString();
}
public static void test(long n) {
System.out.println(n + " = " + roman(n));
}
public static void main(String[] args) {
test(1999);
test(25);
test(944);
test(0);
}
Here's my approach, inspired by @kepkin's solution:
# Adds ANSI colors to matched terms, similar to grep --color but without
# filtering unmatched lines. Example:
# noisy_command | highlight ERROR INFO
#
# Each argument is passed into sed as a matching pattern and matches are
# colored. Multiple arguments will use separate colors.
#
# Inspired by https://stackoverflow.com/a/25357856
highlight() {
# color cycles from 0-5, (shifted 31-36), i.e. r,g,y,b,m,c
local color=0 patterns=()
for term in "$@"; do
patterns+=("$(printf 's|%s|\e[%sm\\0\e[0m|g' "${term//|/\\|}" "$(( color+31 ))")")
color=$(( (color+1) % 6 ))
done
sed -f <(printf '%s\n' "${patterns[@]}")
}
This accepts multiple arguments (but doesn't let you customize the colors). Example:
$ noisy_command | highlight ERROR WARN
If I know the database is MySQL, I'll use the NOW() function like this:
INSERT INTO table_name
(id, name, created_at)
VALUES
(1, 'Gordon', NOW())
You just need to create your own class inherited from parent. Place an ImageView on that, and on the mousedown and mouse up events just change the images of the ImageView.
public class ImageButton extends Parent {
private static final Image NORMAL_IMAGE = ...;
private static final Image PRESSED_IMAGE = ...;
private final ImageView iv;
public ImageButton() {
this.iv = new ImageView(NORMAL_IMAGE);
this.getChildren().add(this.iv);
this.iv.setOnMousePressed(new EventHandler<MouseEvent>() {
public void handle(MouseEvent evt) {
iv.setImage(PRESSED_IMAGE);
}
});
// TODO other event handlers like mouse up
}
}
As it was mentioned above CasperJS is the best tool to fill and send forms. Simplest possible example of how to fill & submit form using fill() function:
casper.start("http://example.com/login", function() {
//searches and fills the form with id="loginForm"
this.fill('form#loginForm', {
'login': 'admin',
'password': '12345678'
}, true);
this.evaluate(function(){
//trigger click event on submit button
document.querySelector('input[type="submit"]').click();
});
});
Following is a free list of tools you can use to check, test and verify your JS code:
Hope this helps.
Facebook does it, when you write on people's walls, but only resizes vertically.
Horizontal resize strikes me as being a mess, due to word-wrap, long lines, and so on, but vertical resize seems to be pretty safe and nice.
None of the Facebook-using-newbies I know have ever mentioned anything about it or been confused. I'd use this as anecdotal evidence to say 'go ahead, implement it'.
Some JavaScript code to do it, using Prototype (because that's what I'm familiar with):
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="http://www.google.com/jsapi"></script>
<script language="javascript">
google.load('prototype', '1.6.0.2');
</script>
</head>
<body>
<textarea id="text-area" rows="1" cols="50"></textarea>
<script type="text/javascript" language="javascript">
resizeIt = function() {
var str = $('text-area').value;
var cols = $('text-area').cols;
var linecount = 0;
$A(str.split("\n")).each( function(l) {
linecount += Math.ceil( l.length / cols ); // Take into account long lines
})
$('text-area').rows = linecount + 1;
};
// You could attach to keyUp, etc. if keydown doesn't work
Event.observe('text-area', 'keydown', resizeIt );
resizeIt(); //Initial on load
</script>
</body>
</html>
PS: Obviously this JavaScript code is very naive and not well tested, and you probably don't want to use it on textboxes with novels in them, but you get the general idea.
As an addition
To disable all rules for the next line // tslint:disable-next-line
To disable specific rules for the next line: // tslint:disable-next-line:rule1 rule2...
To disable all rules for the current line: someCode(); // tslint:disable-line
To disable specific rules for the current line: someCode(); // tslint:disable-line:rule1
I think what you are looking for is:
list(im.getdata())
or, if the image is too big to load entirely into memory, so something like that:
for pixel in iter(im.getdata()):
print pixel
from PIL documentation:
getdata
im.getdata() => sequence
Returns the contents of an image as a sequence object containing pixel values. The sequence object is flattened, so that values for line one follow directly after the values of line zero, and so on.
Note that the sequence object returned by this method is an internal PIL data type, which only supports certain sequence operations, including iteration and basic sequence access. To convert it to an ordinary sequence (e.g. for printing), use list(im.getdata()).
First customize your search dialog. Ctrl+H. Click on the Customize button and select inly File Search while deselecting all the others. Close the dialog.
Now you can search by selecting the word and hitting the Ctrl+H and then Enter.
just how to replace strings :) as i do first arg will be filename second target string third one the string to be replaced instead of targe
public class ReplaceString{
public static void main(String[] args)throws Exception {
if(args.length<3)System.exit(0);
String targetStr = args[1];
String altStr = args[2];
java.io.File file = new java.io.File(args[0]);
java.util.Scanner scanner = new java.util.Scanner(file);
StringBuilder buffer = new StringBuilder();
while(scanner.hasNext()){
buffer.append(scanner.nextLine().replaceAll(targetStr, altStr));
if(scanner.hasNext())buffer.append("\n");
}
scanner.close();
java.io.PrintWriter printer = new java.io.PrintWriter(file);
printer.print(buffer);
printer.close();
}
}
UPDATE messages SET
status=10
WHERE ID in (SELECT TOP (10) Id FROM Table WHERE status=0 ORDER BY priority DESC);
The answer above (by Pablo) is very right. This is just additional information.
The JRE is, as the name implies, an environment. It's basically a bunch of directories with Java-related files, to wit:
bin/
contains Java's executable programs. The most important is java
(and for Windows, javaw
as well), which launches the JVM. There are some other utilities here as well, such as keytool
and policytool
.conf/
holds user-editable configuration files for Java experts to play with.lib/
has a large number of supporting files: some .jar
s, configuration files, property files, fonts, translations, certs, etc. – all the "trimmings" of Java. The most important is modules
, a file that contains the .class
files of the Java standard library..dll
(Windows) or .dylib
(macOS) or .so
(Linux) files under bin/
or lib/
with supporting, system-specific native binary code.The JDK is also a set of directories. It is a superset of the JRE, with some additions:
bin/
has been enlarged with development tools. The most important of them is javac
; others include jar
, javadoc
and jshell
.jmods/
, which holds JMOD files for the standard library, has been added. These files allow the standard library to be used with jlink
.There are some more interesting ones along with related info.
This is an old thread but apparently the C++ Faq
has a section (Archived 2013 version) on this. This apparently will be updated if the author is contacted so this will probably be more up to date in the long run, but here is the current version:
Depends on what you mean. If you mean, Is it possible to convert C++ to readable and maintainable C-code? then sorry, the answer is No — C++ features don't directly map to C, plus the generated C code is not intended for humans to follow. If instead you mean, Are there compilers which convert C++ to C for the purpose of compiling onto a platform that yet doesn't have a C++ compiler? then you're in luck — keep reading.
A compiler which compiles C++ to C does full syntax and semantic checking on the program, and just happens to use C code as a way of generating object code. Such a compiler is not merely some kind of fancy macro processor. (And please don't email me claiming these are preprocessors — they are not — they are full compilers.) It is possible to implement all of the features of ISO Standard C++ by translation to C, and except for exception handling, it typically results in object code with efficiency comparable to that of the code generated by a conventional C++ compiler.
Here are some products that perform compilation to C:
- Comeau Computing offers a compiler based on Edison Design Group's front end that outputs C code.
- LLVM is a downloadable compiler that emits C code. See also here and here. Here is an example of C++ to C conversion via LLVM.
Cfront, the original implementation of C++, done by Bjarne Stroustrup and others at AT&T, generates C code. However it has two problems: it's been difficult to obtain a license since the mid 90s when it started going through a maze of ownership changes, and development ceased at that same time and so it doesn't get bug fixes and doesn't support any of the newer language features (e.g., exceptions, namespaces, RTTI, member templates).
Contrary to popular myth, as of this writing there is no version of g++ that translates C++ to C. Such a thing seems to be doable, but I am not aware that anyone has actually done it (yet).
Note that you typically need to specify the target platform's CPU, OS and C compiler so that the generated C code will be specifically targeted for this platform. This means: (a) you probably can't take the C code generated for platform X and compile it on platform Y; and (b) it'll be difficult to do the translation yourself — it'll probably be a lot cheaper/safer with one of these tools.
One more time: do not email me saying these are just preprocessors — they are not — they are compilers.
Its not a perfect solution, but a good workaround.
You need to assign your elements to behave as table with display: table-cell
HTML:
<ul>
<li>
<div><input type="checkbox" value="1" name="test[]" id="myid1"></div>
<div><label for="myid1">label1</label></div>
</li>
<li>
<div><input type="checkbox" value="2" name="test[]" id="myid2"></div>
<div><label for="myid2">label2</label></div>
</li>
</ul>
CSS:
li div { display: table-cell; vertical-align: middle; }
You can try pip3
. Something like:
pip3 install pandas
Apparently nothing happens, it fails in a non-destructive way and gives you a warning.
I've had this happen as well very recently. One way you can solve this is by moving all the files in the non-empty mount point to somewhere else, e.g.:
mv /nonEmptyMountPoint/* ~/Desktop/mountPointDump/
This way your mount point is now empty, and your mount
command will work.
There are many ways to do this!
correct me if I'm wrong but the question is looking for this kind of result.
<table style="white-space:nowrap;width:100%;">
<tr>
<td class="block" style="width:50%">this should stretch</td>
<td class="block" style="width:50%">this should stretch</td>
<td class="block" style="width:auto">this should be the content width</td>
</tr>
</table>
The first 2 fields will "share" the remaining page (NOTE: if you add more text to either 50% fields it will take more space), and the last field will dominate the table constantly.
If you are happy to let text wrap you can move white-space:nowrap; to the style of the 3rd field
will be the only way to start a new line in that field.
alternatively, you can set a length on the last field ie. width:150px, and leave percentage's on the first 2 fields.
Hope this helps!
The problem may be that ssh is trying to connect to all the different IPs that www.google.com
resolves to. For example on my machine:
# ssh -v -o ConnectTimeout=1 -o ConnectionAttempts=1 www.google.com
OpenSSH_5.9p1, OpenSSL 0.9.8t 18 Jan 2012
debug1: Connecting to www.google.com [173.194.43.20] port 22.
debug1: connect to address 173.194.43.20 port 22: Connection timed out
debug1: Connecting to www.google.com [173.194.43.19] port 22.
debug1: connect to address 173.194.43.19 port 22: Connection timed out
debug1: Connecting to www.google.com [173.194.43.18] port 22.
debug1: connect to address 173.194.43.18 port 22: Connection timed out
debug1: Connecting to www.google.com [173.194.43.17] port 22.
debug1: connect to address 173.194.43.17 port 22: Connection timed out
debug1: Connecting to www.google.com [173.194.43.16] port 22.
debug1: connect to address 173.194.43.16 port 22: Connection timed out
ssh: connect to host www.google.com port 22: Connection timed out
If I run it with a specific IP, it returns much faster.
EDIT: I've timed it (with time
) and the results are:
Just simply re-starting Visual Studio worked for me. No need to install packages, etc.
I don't know if this is still a current issue or not but I just encountered the same problem and used the CSS display: inline-block;
tag.
Wrapping these in a div so that they can be positioned appropriately.
<div>
<div style="display: inline-block;">Content1</div>
<div style="display: inline-block;">Content2</div>
</div>
Note that the use of the inline style attribute was only used for the succinctness of this example of course these used be moved to an external CSS file.
NOTE: git whatchanged
is deprecated, use git log
instead
New users are encouraged to use git-log[1] instead. The
whatchanged
command is essentially the same as git-log[1] but defaults to show the raw format diff output and to skip merges.The command is kept primarily for historical reasons; fingers of many people who learned Git long before
git log
was invented by reading Linux kernel mailing list are trained to type it.
You can use the command git whatchanged --stat
to get a list of files that changed in each commit (along with the commit message).
Because you did not write a comparison operator for your struct. The compiler does not generate it for you, so if you want comparison, you have to write it yourself.
Nice solution by leocaseiro
<input class="ng-hide" id="input-file-id" multiple type="file" />
<label for="input-file-id" class="md-button md-raised md-primary">Choose Files</label>
View in codepen
There is a simple solution based on Git stash. Stash everything that you've changed, pull all the new stuff, apply your stash.
git stash
git pull
git stash pop
On stash pop there may be conflicts. In the case you describe there would in fact be a conflict for config.php
. But, resolving the conflict is easy because you know that what you put in the stash is what you want. So do this:
git checkout --theirs -- config.php
LENGTH()
returns the length of the string measured in bytes.
CHAR_LENGTH()
returns the length of the string measured in characters.
This is especially relevant for Unicode, in which most characters are encoded in two bytes. Or UTF-8, where the number of bytes varies. For example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC
in UTF-8) even though it's only one character.
You can also sort the column by importing the spark sql functions
import org.apache.spark.sql.functions._
df.orderBy(asc("col1"))
Or
import org.apache.spark.sql.functions._
df.sort(desc("col1"))
importing sqlContext.implicits._
import sqlContext.implicits._
df.orderBy($"col1".desc)
Or
import sqlContext.implicits._
df.sort($"col1".desc)
I did this:
php -r "echo json_encode(array_combine(DateTimeZone::listIdentifiers(DateTimeZone::ALL), DateTimeZone::listIdentifiers(DateTimeZone::ALL)));" > list-of-timezones.json
I had a dynamic loop that was creating the infowindows
and markers based on how many were input into the CMS, so I didn't want to create a new InfoWindow()
on every event click and bog it down with requests, if that ever arose. Instead, I tried to know what the specific infowindow
variable for each instance was going to be out of the set amount of locations I had, and then prompt Maps to close all of them before it opened the correct one.
My array of locations was called locations, so the PHP I set up before the actual maps initilization to get my infowindow
variable names was:
for($k = 0; $k < count($locations); $k++) {
$infowindows[] = 'infowindow' . $k;
}
Then after initialzing the map and so forth, in the script I had a PHP foreach
loop creating the dynamic info windows using a counter:
//...javascript map initilization
<?php
$i=0;
foreach($locations as $location) {
..//get latitudes, longitude, image, etc...
echo 'var mapMarker' . $i . ' = new google.maps.Marker({
position: myLatLng' . $i . ',
map: map,
icon: image
});';
echo 'var contentString' . $i . ' = "<h1>' . $title[$i] . '</h1><h2>' . $address[$i] . '</h2>' . $content[$i] . '";';
echo 'infowindow' . $i . ' = new google.maps.InfoWindow({ ';
echo ' content: contentString' . $i . '
});';
echo 'google.maps.event.addListener(mapMarker' . $i . ', "click", function() { ';
foreach($infowindows as $window) {
echo $window . '.close();';
}
echo 'infowindow' . $i . '.open(map,mapMarker'. $i . ');
});';
$i++;
}
?>
...//continue with Maps script...
So, the point is, before I called the entire map script, I had an array with the names I knew were going to be outputted when an InfoWindow()
was created, like infowindow0, infowindow1, infowindow2, etc...
Then, on the click
event for each marker, the foreach
loop goes through and says close all of them before you follow through with the next step of opening them. It turns out looking like this:
google.maps.event.addListener(mapMarker0, "click", function() {
infowindow0.close();
infowindow1.close();
infowindow2.close();
infowindow0.open(map,mapMarker0);
}
Just a different way of doing things I suppose... but I hope it helps someone.
Two ways:
1. Implement ActionListener in your class, then use jBtnSelection.addActionListener(this);
Later, you'll have to define a menthod, public void actionPerformed(ActionEvent e)
. However, doing this for multiple buttons can be confusing, because the actionPerformed
method will have to check the source of each event (e.getSource()
) to see which button it came from.
2. Use anonymous inner classes:
jBtnSelection.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
selectionButtonPressed();
}
} );
Later, you'll have to define selectionButtonPressed()
.
This works better when you have multiple buttons, because your calls to individual methods for handling the actions are right next to the definition of the button.
The second method also allows you to call the selection method directly. In this case, you could call selectionButtonPressed()
if some other action happens, too - like, when a timer goes off or something (but in this case, your method would be named something different, maybe selectionChanged()
).
I think that equality is something that can be absolutely determined. The trouble with null
is that it's inherently unknown. Null
combined with any other value is null
- unknown. Asking SQL "Is my value equal to null
?" would be unknown every single time, even if the input is null
. I think the implementation of IS NULL
makes it clear.
I believe that, if you need to use the %20
variant, you could perhaps use rawurlencode()
.
So, this is the latest solution if anyone get's stuck like I did today especially, for R.Java
file.
If you have lost the count of:
- Clean Project
- Rebuild Project
- Invalidate Caches / Restart
- deleted .gradle folder
- deleted .idea folder
- deleted app/build/generated folder
- checked your xml files
- checked your drawables and strings
then try this:
check your classpath dependency in your Project Gradle Scripts and if it's, this:
classpath 'com.android.tools.build:gradle:3.3.2'
then downgrade it to, this:
classpath 'com.android.tools.build:gradle:3.2.1'
I would like to compile some useful information about creating standalone files on Windows using Python 2.7.
I have used py2exe and it works, but I had some problems.
It has shown some problems for creating single files in Windows 64 bits: Using bundle_files = 1 with py2exe is not working;
It is necessary to create a setup.py file for it to work. http://www.py2exe.org/index.cgi/Tutorial#Step2;
I have had problems with dependencies that you have to solve by importing packages in the setup file;
I was not able to make it work together with PyQt.
This last reason made me try PyInstaller http://www.pyinstaller.org/.
In my opinion, it is much better because:
I suggest creating a .bat file with the following lines for example (pyinstaller.exe must be in in the Windows path):
pyinstaller.exe --onefile MyCode.py
You can create a single file, among other options (https://pyinstaller.readthedocs.io/en/stable/usage.html#options).
I had only one problem using PyInstaller and multiprocessing package that was solved by using this recipe: https://github.com/pyinstaller/pyinstaller/wiki/Recipe-Multiprocessing.
So, I think that, at least for python 2.7, a better and simpler option is PyInstaller.
Based on the existing answers, here's a step-by-step guide to sending automated e-mails over SMTP, using a GMail account, from the command line, without disclosing the password.
First, install the following software packages:
These instructions assume a Linux operating system, but should be reasonably easy to port to Windows (via Cygwin or native equivalents), or other operating system.
Save the following shell script as authentication.sh
:
#!/bin/bash
# Asks for a username and password, then spits out the encoded value for
# use with authentication against SMTP servers.
echo -n "Email (shown): "
read email
echo -n "Password (hidden): "
read -s password
echo
TEXT="\0$email\0$password"
echo -ne $TEXT | base64
Make it executable and run it as follows:
chmod +x authentication.sh
./authentication.sh
When prompted, provide your e-mail address and password. This will look something like:
Email (shown): [email protected]
Password (hidden):
AGJvYkBnbWFpbC5jb20AYm9iaXN0aGViZXN0cGVyc29uZXZlcg==
Copy the last line (AGJ...==
), as this will be used for authentication.
Save the following expect script as notify.sh
(note the first line refers to the expect program):
#!/usr/bin/expect
set address "[lindex $argv 0]"
set subject "[lindex $argv 1]"
set ts_date "[lindex $argv 2]"
set ts_time "[lindex $argv 3]"
set timeout 10
spawn openssl s_client -connect smtp.gmail.com:465 -crlf -ign_eof
expect "220" {
send "EHLO localhost\n"
expect "250" {
send "AUTH PLAIN YOUR_AUTHENTICATION_CODE\n"
expect "235" {
send "MAIL FROM: <YOUR_EMAIL_ADDRESS>\n"
expect "250" {
send "RCPT TO: <$address>\n"
expect "250" {
send "DATA\n"
expect "354" {
send "Subject: $subject\n\n"
send "Email sent on $ts_date at $ts_time.\n"
send "\n.\n"
expect "250" {
send "quit\n"
}
}
}
}
}
}
}
Make the following changes:
YOUR_AUTHENTICATION_CODE
with the authentication code generated by the authentication script.YOUR_EMAIL_ADDRESS
with the e-mail address used to generate the authentication code.For example (note the angle brackets are retained for the e-mail address):
send "AUTH PLAIN AGJvYkBnbWFpbC5jb20AYm9iaXN0aGViZXN0cGVyc29uZXZlcg==\n"
send "MAIL FROM: <[email protected]>\n"
Lastly, make the notify script executable as follows:
chmod +x notify.sh
Send an e-mail from the command line as follows:
./notify.sh [email protected] "Command Line" "March 14" "15:52"
In my case I had this problem when a Windows service tried to connected to a web service. Looking in Windows events finally I found a error code.
Event ID 36888 (Schannel) is raised:
The following fatal alert was generated: 40. The internal error state is 808.
Finally it was related with a Windows Hotfix. In my case: KB3172605 and KB3177186
The proposed solution in vmware forum was add a registry entry in windows. After adding the following registry all works fine.
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman]
"ClientMinKeyBitLength"=dword:00000200
Apparently it's related with a missing value in the https handshake in the client side.
List your Windows HotFix:
wmic qfe list
Solution Thread:
https://communities.vmware.com/message/2604912#2604912
Hope it's helps.
The question is already answered but I think I've found the solution that is simpler and more relevant to the question title, here it is:
var cli = new WebClient();
cli.Headers[HttpRequestHeader.ContentType] = "application/json";
string response = cli.UploadString("http://some/address", "{some:\"json data\"}");
PS: In the most of .net implementations, but not in all WebClient is IDisposable, so of cource it is better to do 'using' or 'Dispose' on it. However in this particular case it is not really necessary.
Allan Jardine’s DataTables is a very powerful and slick jQuery plugin for displaying tabular data. It has many features and can do most of what you might want. One thing that’s curiously difficult though, is how to refresh the contents in a simple way, so I for my own reference, and possibly for the benefit of others as well, here’s a complete example of one way if doing this:
HTML
<table id="HelpdeskOverview">
<thead>
<tr>
<th>Ärende</th>
<th>Rapporterad</th>
<th>Syst/Utr/Appl</th>
<th>Prio</th>
<th>Rubrik</th>
<th>Status</th>
<th>Ägare</th>
</tr>
</thead>
<tbody>
</tbody>
</table>
Javascript
function InitOverviewDataTable()
{
oOverviewTable =$('#HelpdeskOverview').dataTable(
{
"bPaginate": true,
"bJQueryUI": true, // ThemeRoller-stöd
"bLengthChange": false,
"bFilter": false,
"bSort": false,
"bInfo": true,
"bAutoWidth": true,
"bProcessing": true,
"iDisplayLength": 10,
"sAjaxSource": '/Helpdesk/ActiveCases/noacceptancetest'
});
}
function RefreshTable(tableId, urlData)
{
$.getJSON(urlData, null, function( json )
{
table = $(tableId).dataTable();
oSettings = table.fnSettings();
table.fnClearTable(this);
for (var i=0; i<json.aaData.length; i++)
{
table.oApi._fnAddData(oSettings, json.aaData[i]);
}
oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
table.fnDraw();
});
}
function AutoReload()
{
RefreshTable('#HelpdeskOverview', '/Helpdesk/ActiveCases/noacceptancetest');
setTimeout(function(){AutoReload();}, 30000);
}
$(document).ready(function () {
InitOverviewDataTable();
setTimeout(function(){AutoReload();}, 30000);
});
The OP actually mentioned offset as well, so for ex. if you'd like to get the items from 30 to 60, you would do:
var foo = (From t In MyTable
Select t.Foo).Skip(30).Take(30);
Use the "Skip" method for offset.
Use the "Take" method for limit.
You can try this with Color.FromArgb
:
Random rnd = new Random();
lbl.ForeColor = Color.FromArgb(rnd.Next(255), rnd.Next(255), rnd.Next(255));
based on the some of above replies i improvised it a bit
create this method and call it by passing your resource
Reusable Method
public String getURLForResource (int resourceId) {
//use BuildConfig.APPLICATION_ID instead of R.class.getPackage().getName() if both are not same
return Uri.parse("android.resource://"+R.class.getPackage().getName()+"/" +resourceId).toString();
}
Sample call
getURLForResource(R.drawable.personIcon)
complete example of loading image
String imageUrl = getURLForResource(R.drawable.personIcon);
// Load image
Glide.with(patientProfileImageView.getContext())
.load(imageUrl)
.into(patientProfileImageView);
you can move the function getURLForResource to a Util file and make it static so it can be reused
An alternative to msturdy's solution is using the request helper method available to you.
This works in exactly the same way, without the need to import the Input
namespace use Illuminate\Support\Facades\Input
at the top of your controller.
For example:
class SearchController extends BaseController {
public function search()
{
$category = request('category', 'default');
$term = request('term'); // no default defined
...
}
}
use this and it works on both the static arrays and dynamically generated arrays.
var array = [12,2,23,324,23,123,4,23,132,23];
var getMaxValue = Math.max.apply(Math, array );
I had the issue when I use trying to find max value from code below
$('#myTabs').find('li.active').prevAll().andSelf().each(function () {
newGetWidthOfEachTab.push(parseInt($(this).outerWidth()));
});
for (var i = 0; i < newGetWidthOfEachTab.length; i++) {
newWidthOfEachTabTotal += newGetWidthOfEachTab[i];
newGetWidthOfEachTabArr.push(parseInt(newWidthOfEachTabTotal));
}
getMaxValue = Math.max.apply(Math, array);
I was getting 'NAN'
when I use
var max_value = Math.max(12, 21, 23, 2323, 23);
with my code
If you want to effect on the menu options for changing the locale immediately.You have to do like this.
//onCreate method calls only once when menu is called first time.
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
//1.Here you can add your locale settings .
//2.Your menu declaration.
}
//This method is called when your menu is opend to again....
@Override
public boolean onMenuOpened(int featureId, Menu menu) {
menu.clear();
onCreateOptionsMenu(menu);
return super.onMenuOpened(featureId, menu);
}
You should use options.addAll(allPoints);
instead of options.add(point);
You can run below commands.
./catalina.sh run
Note: Make sure the port 8080 is open. If not, kill the process that is using 8080 port using sudo kill -9 $(sudo lsof -t -i:8080)
You need to use dynamic SQL to achieve this; something like:
DECLARE
TYPE cur_type IS REF CURSOR;
CURSOR client_cur IS
SELECT DISTING username
FROM all_users
WHERE length(username) = 3;
emails_cur cur_type;
l_cur_string VARCHAR2(128);
l_email_id <type>;
l_name <type>;
BEGIN
FOR client IN client_cur LOOP
dbms_output.put_line('Client is '|| client.username);
l_cur_string := 'SELECT id, name FROM '
|| client.username || '.org';
OPEN emails_cur FOR l_cur_string;
LOOP
FETCH emails_cur INTO l_email_id, l_name;
EXIT WHEN emails_cur%NOTFOUND;
dbms_output.put_line('Org id is ' || l_email_id
|| ' org name ' || l_name);
END LOOP;
CLOSE emails_cur;
END LOOP;
END;
/
Edited to correct two errors, and to add links to 10g documentation for OPEN-FOR
and an example.
Edited to make the inner cursor query a string variable.
Each cell in the array is treated as unsigned int:
private int unsignedIntFromByteArray(byte[] bytes) {
int res = 0;
if (bytes == null)
return res;
for (int i=0;i<bytes.length;i++){
res = res | ((bytes[i] & 0xff) << i*8);
}
return res;
}
Code :
var now = new Date();
var time = now.getTime();
time += 3600 * 1000;
now.setTime(time);
document.cookie =
'username=' + value +
'; expires=' + now.toUTCString() +
'; path=/';
To your first question:
mysql -u root -p
or
mysqladmin -u root -p "your_command"
depending on what you want to do. The password will be asked of you once you hit enter! I'm guessing you really want to use mysql and not mysqladmin.
For restarting or stopping the MySQL-server on linux, it depends on your installation, but in the common debian derivatives this will work for starting, stopping and restarting the service:
sudo /etc/init.d/mysql start
sudo /etc/init.d/mysql stop
sudo /etc/init.d/mysql restart
sudo /etc/init.d/mysql status
In some newer distros this might work as well if MySQL is set up as a deamon/service.
sudo service mysql start
sudo service mysql stop
sudo service mysql restart
sudo service mysql status
But the question is really impossible to answer without knowing your particular setup.
You can do it as follows:
{'Create\nYour Account'}
In short:
someValues.forEach((element) => {
console.log(element);
});
If you care about index, then second parameter can be passed to receive the index of current element:
someValues.forEach((element, index) => {
console.log(`Current index: ${index}`);
console.log(element);
});
Refer here to know more about Array of ES6: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array
Just 2 small improvements to the above suggestions:
stop propagation on the event that triggered this, assuming its a click
jQuery(thelink).click(function(e){
jQuery(thepop).show();
// bind the hide controls
var jpop=jQuery(thepop);
jQuery(document).bind("click.hidethepop", function() {
jpop.hide();
// unbind the hide controls
jQuery(document).unbind("click.hidethepop");
});
// dont close thepop when you click on thepop
jQuery(thepop).click(function(e) {
e.stopPropagation();
});
// and dont close thepop now
e.stopPropagation();
});
Sometimes, the minimal installation of Linux in Docker doesn't define the path and therefore it is necessary to call ping using ....
cd /usr/sbin
ping <ip>
If you have multiple lists, you can do this combining enumerate
and zip
:
list1 = [1, 2, 3, 4, 5]
list2 = [10, 20, 30, 40, 50]
list3 = [100, 200, 300, 400, 500]
for i, (l1, l2, l3) in enumerate(zip(list1, list2, list3)):
print(i, l1, l2, l3)
Output:
0 1 10 100
1 2 20 200
2 3 30 300
3 4 40 400
4 5 50 500
Note that parenthesis is required after i
. Otherwise you get the error: ValueError: need more than 2 values to unpack
this.button2.BaseColor = System.Drawing.Color.FromArgb(((int)(((byte)(29)))), ((int)(((byte)(190)))), ((int)(((byte)(149)))));
Change the order of statments. For me, changing the block of code
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/context
http://www.springframework.org/schema/beans/spring-beans.xsd"
with
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context"
is valid.
In my case, there was an empty packages.config file in the soultion directory, after deleting this, update succeeded
One potential gotcha that has bitten me before:
I like to have at most one @Before
method in each test class, because order of running the @Before
methods defined within a class is not guaranteed. Typically, I will call such a method setUpTest()
.
But, although @Before
is documented as The @Before methods of superclasses will be run before those of the current class. No other ordering is defined.
, this only applies if each method marked with @Before
has a unique name in the class hierarchy.
For example, I had the following:
public class AbstractFooTest {
@Before
public void setUpTest() {
...
}
}
public void FooTest extends AbstractFooTest {
@Before
public void setUpTest() {
...
}
}
I expected AbstractFooTest.setUpTest()
to run before FooTest.setUpTest()
, but only FooTest.setupTest()
was executed. AbstractFooTest.setUpTest()
was not called at all.
The code must be modified as follows to work:
public void FooTest extends AbstractFooTest {
@Before
public void setUpTest() {
super.setUpTest();
...
}
}
UFT causing issues with RDz (Eclipse based) after install These suggestions will allow to work around this situation even with the environment variables in place and with corresponding values.
Note: Conflicting application will not be recognized in a java context because it is being excluded from the java support mechanism.
Instructions:
a. Locate the executable filename of the application conflicting with add-in(s) support. Either use the Task Manager or the Microsoft Process Explorer.
b. Open Windows Registry Editor.
c. Navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Mercury Interactive\JavaAgent\Modules For 32bits applications on Windows x64: HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Mercury Interactive\JavaAgent\Modules
d. Create a DWORD value with the name of the conflicting software executable filenmae and set the value to 0.
Okay, I've figured this out. Postgresql does not detect changes to the folder /var/lib/postgresql once it's launched, at least not the kind of changes I want it do detect.
The first solution is to start a container with bash instead of starting the postgres server directly, restore the data, and then start the server manually.
The second solution is to use a data container. I didn't get the point of it before, now I do. This data container allows to restore the data before starting the postgres container. Thus, when the postgres server starts, the data are already there.
@Amit's answer is good because it will work in both Mustache and Handlebars.
As far as Handlebars-only solutions, I've seen a few and I like the each_with_key
block helper at https://gist.github.com/1371586 the best.
'key'
, or 'property'
, etc.Inspired by the following resources:
Create and use a @Repeat
annotation as follows:
public class MyTestClass {
@Rule
public RepeatRule repeatRule = new RepeatRule();
@Test
@Repeat(10)
public void testMyCode() {
//your test code goes here
}
}
import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
import static java.lang.annotation.ElementType.METHOD;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
@Retention( RetentionPolicy.RUNTIME )
@Target({ METHOD, ANNOTATION_TYPE })
public @interface Repeat {
int value() default 1;
}
import org.junit.rules.TestRule;
import org.junit.runner.Description;
import org.junit.runners.model.Statement;
public class RepeatRule implements TestRule {
private static class RepeatStatement extends Statement {
private final Statement statement;
private final int repeat;
public RepeatStatement(Statement statement, int repeat) {
this.statement = statement;
this.repeat = repeat;
}
@Override
public void evaluate() throws Throwable {
for (int i = 0; i < repeat; i++) {
statement.evaluate();
}
}
}
@Override
public Statement apply(Statement statement, Description description) {
Statement result = statement;
Repeat repeat = description.getAnnotation(Repeat.class);
if (repeat != null) {
int times = repeat.value();
result = new RepeatStatement(statement, times);
}
return result;
}
}
Using this solution with @RunWith(PowerMockRunner.class)
, requires updating to Powermock 1.6.5 (which includes a patch).
#!/bin/bash
OFFSET=1;
eval `date "+day=%d; month=%m; year=%Y"`
# Subtract offset from day, if it goes below one use 'cal'
# to determine the number of days in the previous month.
day=`expr $day - $OFFSET`
if [ $day -le 0 ] ;then
month=`expr $month - 1`
if [ $month -eq 0 ] ;then
year=`expr $year - 1`
month=12
fi
set `cal $month $year`
xday=${$#}
day=`expr $xday + $day`
fi
echo $year-$month-$day
You also can enable this import as automatic operation. In the properties dialog of your Java projects, enable organize imports
via Java Editor
- Save Action
. After saving your Java files, IDE will do organizing imports, formatting code and so on for you.
In RedBeanPHP 2.0 there is a mass-export function which turns an entire collection of beans into arrays. This works with the JSON encoder..
json_encode( R::exportAll( $beans ) );
This message means that there are certain possible method calls which may fail at run-time. Suppose you have
class A { public function foo($a = 1) {;}}
class B extends A { public function foo($a) {;}}
function bar(A $a) {$a->foo();}
The compiler only checks the call $a->foo() against the requirements of A::foo() which requires no parameters. $a may however be an object of class B which requires a parameter and so the call would fail at runtime.
This however can never fail and does not trigger the error
class A { public function foo($a) {;}}
class B extends A { public function foo($a = 1) {;}}
function bar(A $a) {$a->foo();}
So no method may have more required parameters than its parent method.
The same message is also generated when type hints do not match, but in this case PHP is even more restrictive. This gives an error:
class A { public function foo(StdClass $a) {;}}
class B extends A { public function foo($a) {;}}
as does this:
class A { public function foo($a) {;}}
class B extends A { public function foo(StdClass $a) {;}}
That seems more restrictive than it needs to be and I assume is due to internals.
Visibility differences cause a different error, but for the same basic reason. No method can be less visible than its parent method.
As NSAttributedString
is primarily used with Core Text on iOS, you have to use CTParagraphStyle
instead of NSParagraphStyle
. There is no mutable variant.
For example:
CTTextAlignment alignment = kCTCenterTextAlignment;
CTParagraphStyleSetting alignmentSetting;
alignmentSetting.spec = kCTParagraphStyleSpecifierAlignment;
alignmentSetting.valueSize = sizeof(CTTextAlignment);
alignmentSetting.value = &alignment;
CTParagraphStyleSetting settings[1] = {alignmentSetting};
size_t settingsCount = 1;
CTParagraphStyleRef paragraphRef = CTParagraphStyleCreate(settings, settingsCount);
NSDictionary *attributes = @{(__bridge id)kCTParagraphStyleAttributeName : (__bridge id)paragraphRef};
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:@"Hello World" attributes:attributes];
It is a reference to the current file name. In the file foo.rb
, __FILE__
would be interpreted as "foo.rb"
.
Edit: Ruby 1.9.2 and 1.9.3 appear to behave a little differently from what Luke Bayes said in his comment. With these files:
# test.rb
puts __FILE__
require './dir2/test.rb'
# dir2/test.rb
puts __FILE__
Running ruby test.rb
will output
test.rb
/full/path/to/dir2/test.rb
It's probably best to skip hidden files and folders, such as .git.
So instead of using find
, if your bash
version is recent enough or if you're using zsh
, just do:
dos2unix **
Note that for Bash, this will require:
shopt -s globstar
....but this is a useful enough feature that you should honestly just put it in your .bashrc
anyway.
If you don't want to skip hidden files and folders, but you still don't want to mess with find
(and I wouldn't blame you), you can provide a second recursive-glob argument to match only hidden entries:
dos2unix ** **/.*
Note that in both cases, the glob will expand to include directories, so you will see the following warning (potentially many times over): Skipping <dir>, not a regular file.
How I do:
# Remove python2
sudo apt purge -y python2.7-minimal
# You already have Python3 but
# don't care about the version
sudo ln -s /usr/bin/python3 /usr/bin/python
# Same for pip
sudo apt install -y python3-pip
sudo ln -s /usr/bin/pip3 /usr/bin/pip
# Confirm the new version of Python: 3
python --version
Make sure you have your maven bin directory in the path and the JAVA_HOME property set
Essentially it means you don't have the index you are trying to reference. For example:
df = pd.DataFrame()
df['this']=np.nan
df['my']=np.nan
df['data']=np.nan
df['data'][0]=5 #I haven't yet assigned how long df[data] should be!
print(df)
will give me the error you are referring to, because I haven't told Pandas how long my dataframe is. Whereas if I do the exact same code but I DO assign an index length, I don't get an error:
df = pd.DataFrame(index=[0,1,2,3,4])
df['this']=np.nan
df['is']=np.nan
df['my']=np.nan
df['data']=np.nan
df['data'][0]=5 #since I've properly labelled my index, I don't run into this problem!
print(df)
Hope that answers your question!