For those who struggle at capturing Enter key on TextBox or other input control, if your Form has AcceptButton defined, you will not be able to use KeyDown event to capture Enter.
What you should do is to catch the Enter key at form level. Add this code to the form:
protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
{
if ((this.ActiveControl == myTextBox) && (keyData == Keys.Return))
{
//do something
return true;
}
else
{
return base.ProcessCmdKey(ref msg, keyData);
}
}
This answer is for the older versions of the C++ standard. The C++11 and C++14 versions of the standard do not formally contain 'sequence points'; operations are 'sequenced before' or 'unsequenced' or 'indeterminately sequenced' instead. The net effect is essentially the same, but the terminology is different.
Disclaimer : Okay. This answer is a bit long. So have patience while reading it. If you already know these things, reading them again won't make you crazy.
Pre-requisites : An elementary knowledge of C++ Standard
The Standard says
At certain specified points in the execution sequence called sequence points, all side effects of previous evaluations shall be complete and no side effects of subsequent evaluations shall have taken place. (§1.9/7)
Evaluation of an expression produces something and if in addition there is a change in the state of the execution environment it is said that the expression (its evaluation) has some side effect(s).
For example:
int x = y++; //where y is also an int
In addition to the initialization operation the value of y
gets changed due to the side effect of ++
operator.
So far so good. Moving on to sequence points. An alternation definition of seq-points given by the comp.lang.c author Steve Summit
:
Sequence point is a point in time at which the dust has settled and all side effects which have been seen so far are guaranteed to be complete.
Those are:
at the end of the evaluation of full expression (§1.9/16
) (A full-expression is an expression that is not a subexpression of another expression.)1
Example :
int a = 5; // ; is a sequence point here
in the evaluation of each of the following expressions after the evaluation of the first expression (§1.9/18
) 2
a && b (§5.14)
a || b (§5.15)
a ? b : c (§5.16)
a , b (§5.18)
(here a , b is a comma operator; in func(a,a++)
,
is not a comma operator, it's merely a separator between the arguments a
and a++
. Thus the behaviour is undefined in that case (if a
is considered to be a primitive type)) at a function call (whether or not the function is inline), after the evaluation of all function arguments (if any) which
takes place before execution of any expressions or statements in the function body (§1.9/17
).
1 : Note : the evaluation of a full-expression can include the evaluation of subexpressions that are not lexically part of the full-expression. For example, subexpressions involved in evaluating default argument expressions (8.3.6) are considered to be created in the expression that calls the function, not the expression that defines the default argument
2 : The operators indicated are the built-in operators, as described in clause 5. When one of these operators is overloaded (clause 13) in a valid context, thus designating a user-defined operator function, the expression designates a function invocation and the operands form an argument list, without an implied sequence point between them.
The Standard defines Undefined Behaviour in Section §1.3.12
as
behavior, such as might arise upon use of an erroneous program construct or erroneous data, for which this International Standard imposes no requirements 3.
Undefined behavior may also be expected when this International Standard omits the description of any explicit definition of behavior.
3 : permissible undefined behavior ranges from ignoring the situation completely with unpredictable results, to behaving during translation or program execution in a documented manner characteristic of the environment (with or with- out the issuance of a diagnostic message), to terminating a translation or execution (with the issuance of a diagnostic message).
In short, undefined behaviour means anything can happen from daemons flying out of your nose to your girlfriend getting pregnant.
Before I get into that you must know the difference(s) between Undefined Behaviour, Unspecified Behaviour and Implementation Defined Behaviour.
You must also know that the order of evaluation of operands of individual operators and subexpressions of individual expressions, and the order in which side effects take place, is unspecified
.
For example:
int x = 5, y = 6;
int z = x++ + y++; //it is unspecified whether x++ or y++ will be evaluated first.
Another example here.
Now the Standard in §5/4
says
What does it mean?
Informally it means that between two sequence points a variable must not be modified more than once.
In an expression statement, the next sequence point
is usually at the terminating semicolon, and the previous sequence point
is at the end of the previous statement. An expression may also contain intermediate sequence points
.
From the above sentence the following expressions invoke Undefined Behaviour:
i++ * ++i; // UB, i is modified more than once btw two SPs
i = ++i; // UB, same as above
++i = 2; // UB, same as above
i = ++i + 1; // UB, same as above
++++++i; // UB, parsed as (++(++(++i)))
i = (i, ++i, ++i); // UB, there's no SP between `++i` (right most) and assignment to `i` (`i` is modified more than once btw two SPs)
But the following expressions are fine:
i = (i, ++i, 1) + 1; // well defined (AFAIK)
i = (++i, i++, i); // well defined
int j = i;
j = (++i, i++, j*i); // well defined
What does it mean? It means if an object is written to within a full expression, any and all accesses to it within the same expression must be directly involved in the computation of the value to be written.
For example in i = i + 1
all the access of i
(in L.H.S and in R.H.S) are directly involved in computation of the value to be written. So it is fine.
This rule effectively constrains legal expressions to those in which the accesses demonstrably precede the modification.
Example 1:
std::printf("%d %d", i,++i); // invokes Undefined Behaviour because of Rule no 2
Example 2:
a[i] = i++ // or a[++i] = i or a[i++] = ++i etc
is disallowed because one of the accesses of i
(the one in a[i]
) has nothing to do with the value which ends up being stored in i (which happens over in i++
), and so there's no good way to define--either for our understanding or the compiler's--whether the access should take place before or after the incremented value is stored. So the behaviour is undefined.
Example 3 :
int x = i + i++ ;// Similar to above
Follow up answer for C++11 here.
if you are using login page in your website go to web.config file
<authentication mode="Forms">
<forms loginUrl="login.aspx" defaultUrl="index.aspx" >
</forms>
</authentication>
replace your authentication tag to above (where index.aspx will be your startup page)
and one more thing write this in your web.config file inside
<configuration>
<system.webServer>
<defaultDocument>
<files>
<clear />
<add value="index.aspx" />
</files>
</defaultDocument>
</system.webServer>
<location path="index.aspx">
<system.web>
<authorization>
<allow users="*" />
</authorization>
</system.web>
</location>
</configuration>
I got the same issue and It got solved by installing Oracle 11g client in my machine..
I have not installed any excclusive drivers for it. I am using windows7 with 64 bit. Interestignly, when I navigate into the path Start > Settings > Control Panel > Administrative Tools > DataSources(ODBC) > Drivers. I found only SQL server in it
Just open your repository file and add this new function, then call it inside your controller:
public function distinctCategories(){
return $this->createQueryBuilder('cc')
->where('cc.contenttype = :type')
->setParameter('type', 'blogarticle')
->groupBy('cc.blogarticle')
->getQuery()
->getResult()
;
}
Then within your controller:
public function index(YourRepository $repo)
{
$distinctCategories = $repo->distinctCategories();
return $this->render('your_twig_file.html.twig', [
'distinctCategories' => $distinctCategories
]);
}
Good luck!
You just need to add 'table-layout: fixed;'
.table {
display: table;
height: 100px;
width: 100%;
table-layout: fixed;
}
It makes sense to use requirejs with angularjs if you plan on lazy loading controllers and directives etc, while also combining multiple lazy dependencies into single script files for much faster lazy loading. RequireJS has an optimisation tool that makes the combining easy. See http://ify.io/using-requirejs-with-optimisation-for-lazy-loading-angularjs-artefacts/
Some years have passed and there is now a proper Homebrew Tap for sshpass
, maintained by Aleks Hudochenkov. To install sshpass
from this tap, run:
brew install hudochenkov/sshpass/sshpass
Functional support.
Generators and generator expressions, specifically.
Ruby made this mainstream again, but Python can do it just as well. Not as ubiquitous in the libraries as in Ruby, which is too bad, but I like the syntax better, it's simpler.
Because they're not as ubiquitous, I don't see as many examples out there on why they're useful, but they've allowed me to write cleaner, more efficient code.
When you have two or more windows open horizontally or vertically and want to switch them all to the other orientation, you can use the following:
(switch to horizontal)
:windo wincmd K
(switch to vertical)
:windo wincmd H
It's effectively going to each window individually and using ^WK or ^WH.
The online XML Schema Validator from DecisionSoft allows you to check an XML file against a given schema.
This works for me. Has a nice delayed action going on.
var $mouseX = 0, $mouseY = 0;
var $xp = 0, $yp =0;
$(document).mousemove(function(e){
$mouseX = e.pageX;
$mouseY = e.pageY;
});
var $loop = setInterval(function(){
// change 12 to alter damping higher is slower
$xp += (($mouseX - $xp)/12);
$yp += (($mouseY - $yp)/12);
$("#moving_div").css({left:$xp +'px', top:$yp +'px'});
}, 30);
Nice and simples
Verify that your config/session.php file contains this line
'domain' => env('SESSION_DOMAIN', null),
Then remove the SESSION_DOMAIN
line in your .env file
You can bootstrap multiple angular applications, but:
1) You need to manually bootstrap them
2) You should not use "document" as the root, but the node where the angular interface is contained to:
var todoRootNode = jQuery('[ng-controller=TodoController]');
angular.bootstrap(todoRootNode, ['TodoApp']);
This would be safe.
If all the cases have the same length you can use
switch (mystring.SubString(0,Math.Min(len, mystring.Length)))
.
Another option is to have a function that will return categoryId based on the string and switch on the id.
You separate the values you want to return by commas:
def get_name():
# you code
return first_name, last_name
The commas indicate it's a tuple, so you could wrap your values by parentheses:
return (first_name, last_name)
Then when you call the function you a) save all values to one variable as a tuple, or b) separate your variable names by commas
name = get_name() # this is a tuple
first_name, last_name = get_name()
(first_name, last_name) = get_name() # You can put parentheses, but I find it ugly
Assuming you're using WinForms, as it was the first thing I did when I was starting C# you need to create an event to close this form.
Lets say you've got a button called myNewButton. If you double click it on WinForms designer you will create an event. After that you just have to use this.Close
private void myNewButton_Click(object sender, EventArgs e) {
this.Close();
}
And that should be it.
The only reason for this not working is that your Event is detached from button. But it should create new event if old one is no longer attached when you double click on the button in WinForms designer.
import {Dimensions} from 'react-native'
const WIDTH = Dimensions.get('window').width;
const HEIGHT = Dimensions.get('window').height;
then on the write this styles
position: 'absolute',
top: HEIGHT-80,
left: 0,
right: 0,
worked like a charm
By default, it begins by processing the first target that does not begin with a .
aka the default goal; to do that, it may have to process other targets - specifically, ones the first target depends on.
The GNU Make Manual covers all this stuff, and is a surprisingly easy and informative read.
Try dragging a UIView
onto the screen in IB. From there you can drag a UIImageView
and UILabel
into the view you just created. Set the image of the UIImageView
in the properties inspector as the custom bullet image (which you will have to add to your project by dragging it into the navigation pane) and you can write some text in the label.
The problem is that unless your tables are related you can't determine how to join them, so you'd have to arbitrarily join them, resulting in a cartesian product:
select Table1.col1, Table1.col2, Table2.col3, Table2.col4
from Table1
cross join Table2
If you had, for example, the following data:
col1 col2
a 1
b 2
col3 col4
y 98
z 99
You would end up with the following:
col1 col2 col3 col4
a 1 y 98
a 1 z 99
b 2 y 98
b 2 z 99
Is this what you're looking for? If not, and you have some means of relating the tables, then you'd need to include that in joining the two tables together, e.g.:
select Table1.col1, Table1.col2, Table2.col3, Table2.col4
from Table1
inner join Table2
on Table1.JoiningField = Table2.JoiningField
That would pull things together for you into however the data is related, giving you your result.
Here is a very good tutorial for MVVM beginners; http://geekswithblogs.net/mbcrump/archive/2010/06/27/getting-started-with-mvvm-general-infolinks.aspx [Getting started with MVVM (General Info+Links)]
It's browser dependent. "By default, Internet Explorer has a KeepAliveTimeout value of one minute and an additional limiting factor (ServerInfoTimeout) of two minutes. Either setting can cause Internet Explorer to reset the socket." - from IE support http://support.microsoft.com/kb/813827
Firefox is around the same value I think as well.
Usually though server timeout are set lower than browser timeouts, but at least you can control that and set it higher.
You'd rather handle the timeout though, so that way you can act upon such an event. See this thread: How to detect timeout on an AJAX (XmlHttpRequest) call in the browser?
If you use a CSS sprite for the background images, you could bump the background offset +/- n pixels depending on whether you were expanding or collapsing. Not a toggle, but closer to it than having to switch background image URLs.
The best practice to download an image from Server or from Website and store it locally.
WebClient client=new Webclient();
client.DownloadFile("WebSite URL","C:\\....image.jpg");
client.Dispose();
The only way I found is check if navigator.userAgent contains iPhone or iPad word
if (navigator.userAgent.toLowerCase().match(/(ipad|iphone)/)) {
//is safari
}
I prefer to use the FindItem method and use the value path for locating the item. Make sure your PathSeparator property on the menu matches what you're using in FindItem parameter.
protected void Page_Load(object sender, EventArgs e)
{
// remove manage user accounts menu item for non-admin users.
if (!Page.User.IsInRole("Admin"))
{
MenuItem item = NavigationMenu.FindItem("Users/Manage Accounts");
item.Parent.ChildItems.Remove(item);
}
}
When you are using ui-router, you should not use ng-controller anywhere. Your controllers are automatically instantiated for a ui-view when their appropriate states are activated.
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setTheme(R.style.Theme_AppCompat_Light_NoActionBar);
requestWindowFeature(Window.FEATURE_NO_TITLE);
this.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN
, WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity__splash_screen);
}
RESULT
HTML
<ul class="list">
<li>This is the text</li>
<li>This is another text</li>
<li>This is another another text</li>
</ul>
Use align-items
instead of align-self
and I also added flex-direction
to column
.
CSS
* {
padding: 0;
margin: 0;
box-sizing: border-box;
}
html,
body {
height: 100%;
}
.list {
display: flex;
justify-content: center;
flex-direction: column; /* <--- I added this */
align-items: center; /* <--- Change here */
height: 100px;
width: 100%;
background: silver;
}
.list li {
background: gold;
height: 20%;
}
Similar to yebmouxing I could not the
xhr.getResponseHeader('Set-Cookie');
method to work. It would only return null even if I had set HTTPOnly to false on my server.
I too wrote a simple js helper function to grab the cookies from the document. This function is very basic and only works if you know the additional info (lifespan, domain, path, etc. etc.) to add yourself:
function getCookie(cookieName){
var cookieArray = document.cookie.split(';');
for(var i=0; i<cookieArray.length; i++){
var cookie = cookieArray[i];
while (cookie.charAt(0)==' '){
cookie = cookie.substring(1);
}
cookieHalves = cookie.split('=');
if(cookieHalves[0]== cookieName){
return cookieHalves[1];
}
}
return "";
}
If anyone is looking into this, I've been trying different options and the following approach yields very good results. The following are the steps to get a working example:
Install-Package Tesseract
(https://github.com/charlesw/tesseract).tesseract-ocr-3.02.eng.tar.gz English language data for Tesseract 3.02
.tessdata
directory in your project and place the language data files in it.Properties
of the newly added files and set them to copy on build.System.Drawing
.Samples
directory copy the sample phototest.tif
file into your project directory and set it to copy on build.Program.cs
using System;
using Tesseract;
using System.Diagnostics;
namespace ConsoleApplication
{
class Program
{
public static void Main(string[] args)
{
var testImagePath = "./phototest.tif";
if (args.Length > 0)
{
testImagePath = args[0];
}
try
{
var logger = new FormattedConsoleLogger();
var resultPrinter = new ResultPrinter(logger);
using (var engine = new TesseractEngine(@"./tessdata", "eng", EngineMode.Default))
{
using (var img = Pix.LoadFromFile(testImagePath))
{
using (logger.Begin("Process image"))
{
var i = 1;
using (var page = engine.Process(img))
{
var text = page.GetText();
logger.Log("Text: {0}", text);
logger.Log("Mean confidence: {0}", page.GetMeanConfidence());
using (var iter = page.GetIterator())
{
iter.Begin();
do
{
if (i % 2 == 0)
{
using (logger.Begin("Line {0}", i))
{
do
{
using (logger.Begin("Word Iteration"))
{
if (iter.IsAtBeginningOf(PageIteratorLevel.Block))
{
logger.Log("New block");
}
if (iter.IsAtBeginningOf(PageIteratorLevel.Para))
{
logger.Log("New paragraph");
}
if (iter.IsAtBeginningOf(PageIteratorLevel.TextLine))
{
logger.Log("New line");
}
logger.Log("word: " + iter.GetText(PageIteratorLevel.Word));
}
} while (iter.Next(PageIteratorLevel.TextLine, PageIteratorLevel.Word));
}
}
i++;
} while (iter.Next(PageIteratorLevel.Para, PageIteratorLevel.TextLine));
}
}
}
}
}
}
catch (Exception e)
{
Trace.TraceError(e.ToString());
Console.WriteLine("Unexpected Error: " + e.Message);
Console.WriteLine("Details: ");
Console.WriteLine(e.ToString());
}
Console.Write("Press any key to continue . . . ");
Console.ReadKey(true);
}
private class ResultPrinter
{
readonly FormattedConsoleLogger logger;
public ResultPrinter(FormattedConsoleLogger logger)
{
this.logger = logger;
}
public void Print(ResultIterator iter)
{
logger.Log("Is beginning of block: {0}", iter.IsAtBeginningOf(PageIteratorLevel.Block));
logger.Log("Is beginning of para: {0}", iter.IsAtBeginningOf(PageIteratorLevel.Para));
logger.Log("Is beginning of text line: {0}", iter.IsAtBeginningOf(PageIteratorLevel.TextLine));
logger.Log("Is beginning of word: {0}", iter.IsAtBeginningOf(PageIteratorLevel.Word));
logger.Log("Is beginning of symbol: {0}", iter.IsAtBeginningOf(PageIteratorLevel.Symbol));
logger.Log("Block text: \"{0}\"", iter.GetText(PageIteratorLevel.Block));
logger.Log("Para text: \"{0}\"", iter.GetText(PageIteratorLevel.Para));
logger.Log("TextLine text: \"{0}\"", iter.GetText(PageIteratorLevel.TextLine));
logger.Log("Word text: \"{0}\"", iter.GetText(PageIteratorLevel.Word));
logger.Log("Symbol text: \"{0}\"", iter.GetText(PageIteratorLevel.Symbol));
}
}
}
}
FormattedConsoleLogger.cs
using System;
using System.Collections.Generic;
using System.Text;
using Tesseract;
namespace ConsoleApplication
{
public class FormattedConsoleLogger
{
const string Tab = " ";
private class Scope : DisposableBase
{
private int indentLevel;
private string indent;
private FormattedConsoleLogger container;
public Scope(FormattedConsoleLogger container, int indentLevel)
{
this.container = container;
this.indentLevel = indentLevel;
StringBuilder indent = new StringBuilder();
for (int i = 0; i < indentLevel; i++)
{
indent.Append(Tab);
}
this.indent = indent.ToString();
}
public void Log(string format, object[] args)
{
var message = String.Format(format, args);
StringBuilder indentedMessage = new StringBuilder(message.Length + indent.Length * 10);
int i = 0;
bool isNewLine = true;
while (i < message.Length)
{
if (message.Length > i && message[i] == '\r' && message[i + 1] == '\n')
{
indentedMessage.AppendLine();
isNewLine = true;
i += 2;
}
else if (message[i] == '\r' || message[i] == '\n')
{
indentedMessage.AppendLine();
isNewLine = true;
i++;
}
else
{
if (isNewLine)
{
indentedMessage.Append(indent);
isNewLine = false;
}
indentedMessage.Append(message[i]);
i++;
}
}
Console.WriteLine(indentedMessage.ToString());
}
public Scope Begin()
{
return new Scope(container, indentLevel + 1);
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
var scope = container.scopes.Pop();
if (scope != this)
{
throw new InvalidOperationException("Format scope removed out of order.");
}
}
}
}
private Stack<Scope> scopes = new Stack<Scope>();
public IDisposable Begin(string title = "", params object[] args)
{
Log(title, args);
Scope scope;
if (scopes.Count == 0)
{
scope = new Scope(this, 1);
}
else
{
scope = ActiveScope.Begin();
}
scopes.Push(scope);
return scope;
}
public void Log(string format, params object[] args)
{
if (scopes.Count > 0)
{
ActiveScope.Log(format, args);
}
else
{
Console.WriteLine(String.Format(format, args));
}
}
private Scope ActiveScope
{
get
{
var top = scopes.Peek();
if (top == null) throw new InvalidOperationException("No current scope");
return top;
}
}
}
}
This is the best help that I found:
https://atom.io/packages/atom-beautify
This package can be installed in Atom and then CTRL+ALT+B solve the problem.
In a component below <Router>
Just add a React Hook (in case you are not using a React class)
React.useEffect(() => {
window.scrollTo(0, 0);
}, [props.location]);
I ran into this issue a while back. The ^M represents a Carriage Return, and searching on Ctrl-Q Ctrl-M
(This creates a literal ^M) will allow you get a handle on this character within Emacs. I did something along these lines:
M-x replace-string [ENTER] C-q C-m [ENTER] \n [ENTER]
var answer = accountTable.Aggregate(new { Min = int.MinValue, Max = int.MaxValue },
(a, b) => new { Min = Math.Min(a.Min, b.Field<int>("AccountLevel")),
Max = Math.Max(a.Max, b.Field<int>("AccountLevel")) });
int min = answer.Min;
int max = answer.Max;
1 iteration, linq style :)
If you want to format the output on your own, simply add another loop (foreach) to iterate through the contents of the current row:
while ($row = mysql_fetch_array($result)) {
foreach ($row as $columnName => $columnData) {
echo 'Column name: ' . $columnName . ' Column data: ' . $columnData . '<br />';
}
}
Or if you don't care about the formatting, use the print_r function recommended in the previous answers.
while ($row = mysql_fetch_array($result)) {
echo '<pre>';
print_r ($row);
echo '</pre>';
}
print_r() prints only the keys and values of the array, opposed to var_dump() whichs also prints the types of the data in the array, i.e. String, int, double, and so on. If you do care about the data types - use var_dump() over print_r().
For workdays, Monday to Friday, you can do it with a single SELECT, like this:
DECLARE @StartDate DATETIME
DECLARE @EndDate DATETIME
SET @StartDate = '2008/10/01'
SET @EndDate = '2008/10/31'
SELECT
(DATEDIFF(dd, @StartDate, @EndDate) + 1)
-(DATEDIFF(wk, @StartDate, @EndDate) * 2)
-(CASE WHEN DATENAME(dw, @StartDate) = 'Sunday' THEN 1 ELSE 0 END)
-(CASE WHEN DATENAME(dw, @EndDate) = 'Saturday' THEN 1 ELSE 0 END)
If you want to include holidays, you have to work it out a bit...
select t.range as score, count(*) as Count
from (
select UserId,
case when isnull(score ,0) >= 0 and isnull(score ,0)< 5 then '0-5'
when isnull(score ,0) >= 5 and isnull(score ,0)< 10 then '5-10'
when isnull(score ,0) >= 10 and isnull(score ,0)< 15 then '10-15'
when isnull(score ,0) >= 15 and isnull(score ,0)< 20 then '15-20'
else ' 20+' end as range
,case when isnull(score ,0) >= 0 and isnull(score ,0)< 5 then 1
when isnull(score ,0) >= 5 and isnull(score ,0)< 10 then 2
when isnull(score ,0) >= 10 and isnull(score ,0)< 15 then 3
when isnull(score ,0) >= 15 and isnull(score ,0)< 20 then 4
else 5 end as pd
from score table
) t
group by t.range,pd order by pd
You can change this in the page load
.
My intention is that when the page comes to the load
function, switch the links (the current link in the required one)
If you have a parent project you can set the version in the parent pom and in the children you can reference sibling libs with the ${project.version} or ${version} properties.
If you want to avoid to repeat the version of the parent in each children: you can do this:
<modelVersion>4.0.0</modelVersion>
<groupId>company</groupId>
<artifactId>build.parent</artifactId>
<version>${my.version}</version>
<packaging>pom</packaging>
<properties>
<my.version>1.1.2-SNAPSHOT</my.version>
</properties>
And then in your children pom you have to do:
<parent>
<artifactId>build.parent</artifactId>
<groupId>company</groupId>
<relativePath>../build.parent/pom.xml</relativePath>
<version>${my.version}</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<groupId>company</groupId>
<artifactId>artifact</artifactId>
<packaging>eclipse-plugin</packaging>
<dependencies>
<dependency>
<groupId>company</groupId>
<artifactId>otherartifact</artifactId>
<version>${my.version}</version>
or
<version>${project.version}</version>
</dependency>
</dependencies>
hth
You may try this (using jQuery
)
$(function(){_x000D_
$('#MainPopupIframe').load(function(){_x000D_
$(this).show();_x000D_
console.log('iframe loaded successfully')_x000D_
});_x000D_
_x000D_
$('#click').on('click', function(){_x000D_
$('#MainPopupIframe').attr('src', 'https://heera.it'); _x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id='click'>click me</button>_x000D_
_x000D_
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
_x000D_
Update: Using plain javascript
window.onload=function(){_x000D_
var ifr=document.getElementById('MainPopupIframe');_x000D_
ifr.onload=function(){_x000D_
this.style.display='block';_x000D_
console.log('laod the iframe')_x000D_
};_x000D_
var btn=document.getElementById('click'); _x000D_
btn.onclick=function(){_x000D_
ifr.src='https://heera.it'; _x000D_
};_x000D_
};
_x000D_
<button id='click'>click me</button>_x000D_
_x000D_
<iframe style="display:none" id='MainPopupIframe' src='' /></iframe>
_x000D_
Update: Also you can try this (dynamic iframe)
$(function(){_x000D_
$('#click').on('click', function(){_x000D_
var ifr=$('<iframe/>', {_x000D_
id:'MainPopupIframe',_x000D_
src:'https://heera.it',_x000D_
style:'display:none;width:320px;height:400px',_x000D_
load:function(){_x000D_
$(this).show();_x000D_
alert('iframe loaded !');_x000D_
}_x000D_
});_x000D_
$('body').append(ifr); _x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<button id='click'>click me</button><br />
_x000D_
I also use a positive lookahead to trim repeating spaces inside the text:
s/^\s+|\s(?=\s)|\s+$//g
Including the jQuery Library
That is jQuery code. You'll first need to make sure the jQuery library is loaded. If you don't host the library file yourself, you can hotlink one from the jQuery CDN:
<script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
You can do this within the <head>
section, but it's fine as long as it's loaded before your jQuery code.
Further reading:
Placing Your Code in the Page
Place your code inside <script>
tags. It can be inserted anywhere within either <head>
or <body>
. If you place it before the <input>
and <tr>
tags (as referenced in your code), you have to use $(document).ready()
to make sure those elements are present before the code is run:
$(document).ready(function() {
// put your jQuery code here.
});
If you want your page content to be loaded as soon as possible, you might want to place it as close as the </body>
close tag as possible. But another common practice is to place all JavaScript code in the <head>
section. This is your choice, based on your coding style and needs.
Suggestion: Instead of embedding JS/jQuery code directly into an HTML page, consider placing the code in a separate .js file. This will allow you to reuse the same code on other pages:
<script src="/path/to/your/code.js"></script>
Further reading:
Month start from 0. 0 = January, 1 = February, 2 = March, ..., 11 = December.
window.location
adds an item to your history in that you can (or should be able to) click "Back" and go back to the current page.
window.location.replace
replaces the current history item so you can't go back to it.
See window.location
:
assign(url)
: Load the document at the provided URL.
replace(url)
:Replace the current document with the one at the provided URL. The difference from theassign()
method is that after usingreplace()
the current page will not be saved in session history, meaning the user won't be able to use the Back button to navigate to it.
Oh and generally speaking:
window.location.href = url;
is favoured over:
window.location = url;
You can also use this direct command line to open the Advanced System Properties:
sysdm.cpl
Then go to the Advanced Tab -> Environment Variables
hash.store(key, value) - Stores a key-value pair in hash.
Example:
hash #=> {"a"=>9, "b"=>200, "c"=>4}
hash.store("d", 42) #=> 42
hash #=> {"a"=>9, "b"=>200, "c"=>4, "d"=>42}
Another way to run jar files with a click/double-click, is to prepend "-jar " to the
file's name. For example, you would rename the file MyJar.jar
to -jar MyJar.jar
.
You must have the .class
files associated with java.exe
, of course. This might not work in all cases, but it has worked most times for me.
I understand that you want your customers to use the power of python but do not want expose the source code.
Here are my suggestions:
(a) Write the critical pieces of the code as C or C++ libraries and then use SIP or swig to expose the C/C++ APIs to Python namespace.
(b) Use cython instead of Python
(c) In both (a) and (b), it should be possible to distribute the libraries as licensed binary with a Python interface.
I'd like to find something official like this - 15.6.2.1 Clustered and Secondary Indexes - MySQL.
If the table has no PRIMARY KEY or suitable UNIQUE index, InnoDB internally generates a hidden clustered index named GEN_CLUST_INDEX on a synthetic column containing row ID values. The rows are ordered by the ID that InnoDB assigns to the rows in such a table. The row ID is a 6-byte field that increases monotonically as new rows are inserted. Thus, the rows ordered by the row ID are physically in insertion order.
So, why not create primary key or something like it by yourself? Besides, ORM cannot identify this hidden ID, meaning that you cannot use ID in your code.
If you're talking about real device /data/data/<application-package-name>
is unaccessible. You must have root rights...
In SSMS 2012, you'll have to use:
To enable single-user mode, in SQL instance properties, DO NOT go to "Advance" tag, there is already a "Startup Parameters" tag.
I encountered today quite a similar problem : mysqldump dumped my utf-8 base encoding utf-8 diacritic characters as two latin1 characters, although the file itself is regular utf8.
For example : "é" was encoded as two characters "é". These two characters correspond to the utf8 two bytes encoding of the letter but it should be interpreted as a single character.
To solve the problem and correctly import the database on another server, I had to convert the file using the ftfy (stands for "Fixes Text For You). (https://github.com/LuminosoInsight/python-ftfy) python library. The library does exactly what I expect : transform bad encoded utf-8 to correctly encoded utf-8.
For example : This latin1 combination "é" is turned into an "é".
ftfy comes with a command line script but it transforms the file so it can not be imported back into mysql.
I wrote a python3 script to do the trick :
#!/usr/bin/python3
# coding: utf-8
import ftfy
# Set input_file
input_file = open('mysql.utf8.bad.dump', 'r', encoding="utf-8")
# Set output file
output_file = open ('mysql.utf8.good.dump', 'w')
# Create fixed output stream
stream = ftfy.fix_file(
input_file,
encoding=None,
fix_entities='auto',
remove_terminal_escapes=False,
fix_encoding=True,
fix_latin_ligatures=False,
fix_character_width=False,
uncurl_quotes=False,
fix_line_breaks=False,
fix_surrogates=False,
remove_control_chars=False,
remove_bom=False,
normalization='NFC'
)
# Save stream to output file
stream_iterator = iter(stream)
while stream_iterator:
try:
line = next(stream_iterator)
output_file.write(line)
except StopIteration:
break
For me the issue was signing into my Google account on the debug Chrome window. This had been working fine for me until I signed in. Once I signed out of that instance of Chrome AND choose to delete all of my settings via the checkbox, the debugger worked fine again.
My non-debugging instance of Chrome was still signed into Google and unaffected. The main issue is that my lovely plugins are gone from the debug version, but at least I can step through client code again.
After trying examples (PHP 5.3.5), I found that in both cases of defining functions you can't use $this
operator to work on class functions. So I couldn't find a difference in them yet. :(
You can do a simple return of the .length
here:
function areAnyChecked(formID) {
return !!$('#'+formID+' input[type=checkbox]:checked').length;
}
This look for checkboxes in the given form, sees if any are :checked
and returns true
if they are (since the length would be 0 otherwise). To make it a bit clearer, here's the non boolean converted version:
function howManyAreChecked(formID) {
return $('#'+formID+' input[type=checkbox]:checked').length;
}
This would return a count of how many were checked.
How do Python's
any
andall
functions work?
any
and all
take iterables and return True
if any and all (respectively) of the elements are True
.
>>> any([0, 0.0, False, (), '0']), all([1, 0.0001, True, (False,)])
(True, True) # ^^^-- truthy non-empty string
>>> any([0, 0.0, False, (), '']), all([1, 0.0001, True, (False,), {}])
(False, False) # ^^-- falsey
If the iterables are empty, any
returns False
, and all
returns True
.
>>> any([]), all([])
(False, True)
I was demonstrating all
and any
for students in class today. They were mostly confused about the return values for empty iterables. Explaining it this way caused a lot of lightbulbs to turn on.
They, any
and all
, both look for a condition that allows them to stop evaluating. The first examples I gave required them to evaluate the boolean for each element in the entire list.
(Note that list literal is not itself lazily evaluated - you could get that with an Iterator - but this is just for illustrative purposes.)
Here's a Python implementation of any and all:
def any(iterable):
for i in iterable:
if i:
return True
return False # for an empty iterable, any returns False!
def all(iterable):
for i in iterable:
if not i:
return False
return True # for an empty iterable, all returns True!
Of course, the real implementations are written in C and are much more performant, but you could substitute the above and get the same results for the code in this (or any other) answer.
all
all
checks for elements to be False
(so it can return False
), then it returns True
if none of them were False
.
>>> all([1, 2, 3, 4]) # has to test to the end!
True
>>> all([0, 1, 2, 3, 4]) # 0 is False in a boolean context!
False # ^--stops here!
>>> all([])
True # gets to end, so True!
any
The way any
works is that it checks for elements to be True
(so it can return True), then it returns
Falseif none of them were
True`.
>>> any([0, 0.0, '', (), [], {}]) # has to test to the end!
False
>>> any([1, 0, 0.0, '', (), [], {}]) # 1 is True in a boolean context!
True # ^--stops here!
>>> any([])
False # gets to end, so False!
I think if you keep in mind the short-cutting behavior, you will intuitively understand how they work without having to reference a Truth Table.
all
and any
shortcutting:First, create a noisy_iterator:
def noisy_iterator(iterable):
for i in iterable:
print('yielding ' + repr(i))
yield i
and now let's just iterate over the lists noisily, using our examples:
>>> all(noisy_iterator([1, 2, 3, 4]))
yielding 1
yielding 2
yielding 3
yielding 4
True
>>> all(noisy_iterator([0, 1, 2, 3, 4]))
yielding 0
False
We can see all
stops on the first False boolean check.
And any
stops on the first True boolean check:
>>> any(noisy_iterator([0, 0.0, '', (), [], {}]))
yielding 0
yielding 0.0
yielding ''
yielding ()
yielding []
yielding {}
False
>>> any(noisy_iterator([1, 0, 0.0, '', (), [], {}]))
yielding 1
True
Let's look at the source to confirm the above.
Here's the source for any
:
static PyObject *
builtin_any(PyObject *module, PyObject *iterable)
{
PyObject *it, *item;
PyObject *(*iternext)(PyObject *);
int cmp;
it = PyObject_GetIter(iterable);
if (it == NULL)
return NULL;
iternext = *Py_TYPE(it)->tp_iternext;
for (;;) {
item = iternext(it);
if (item == NULL)
break;
cmp = PyObject_IsTrue(item);
Py_DECREF(item);
if (cmp < 0) {
Py_DECREF(it);
return NULL;
}
if (cmp > 0) {
Py_DECREF(it);
Py_RETURN_TRUE;
}
}
Py_DECREF(it);
if (PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_StopIteration))
PyErr_Clear();
else
return NULL;
}
Py_RETURN_FALSE;
}
And here's the source for all
:
static PyObject *
builtin_all(PyObject *module, PyObject *iterable)
{
PyObject *it, *item;
PyObject *(*iternext)(PyObject *);
int cmp;
it = PyObject_GetIter(iterable);
if (it == NULL)
return NULL;
iternext = *Py_TYPE(it)->tp_iternext;
for (;;) {
item = iternext(it);
if (item == NULL)
break;
cmp = PyObject_IsTrue(item);
Py_DECREF(item);
if (cmp < 0) {
Py_DECREF(it);
return NULL;
}
if (cmp == 0) {
Py_DECREF(it);
Py_RETURN_FALSE;
}
}
Py_DECREF(it);
if (PyErr_Occurred()) {
if (PyErr_ExceptionMatches(PyExc_StopIteration))
PyErr_Clear();
else
return NULL;
}
Py_RETURN_TRUE;
}
Download the source of deme from here(Json parsing in android kotlin)
Add this dependency:
compile 'com.squareup.okhttp3:okhttp:3.8.1'
Call api function:
fun run(url: String) {
dialog.show()
val request = Request.Builder()
.url(url)
.build()
client.newCall(request).enqueue(object : Callback {
override fun onFailure(call: Call, e: IOException) {
dialog.dismiss()
}
override fun onResponse(call: Call, response: Response) {
var str_response = response.body()!!.string()
val json_contact:JSONObject = JSONObject(str_response)
var jsonarray_contacts:JSONArray= json_contact.getJSONArray("contacts")
var i:Int = 0
var size:Int = jsonarray_contacts.length()
al_details= ArrayList();
for (i in 0.. size-1) {
var json_objectdetail:JSONObject=jsonarray_contacts.getJSONObject(i)
var model:Model= Model();
model.id=json_objectdetail.getString("id")
model.name=json_objectdetail.getString("name")
model.email=json_objectdetail.getString("email")
model.address=json_objectdetail.getString("address")
model.gender=json_objectdetail.getString("gender")
al_details.add(model)
}
runOnUiThread {
//stuff that updates ui
val obj_adapter : CustomAdapter
obj_adapter = CustomAdapter(applicationContext,al_details)
lv_details.adapter=obj_adapter
}
dialog.dismiss()
}
})
CSS can't change the tooltip appearance. It is browser/OS-dependent. If you want something different you'll have to use Javascript to generate markup when you hover over the element instead of the default tooltip.
Please check this:
$servername='localhost';
$username='root';
$password='';
$databasename='MyDb';
$connection = mysqli_connect($servername,$username,$password);
if (!$connection) {
die("Connection failed: " . $conn->connect_error);
}
/*mysqli_query($connection, "DROP DATABASE if exists MyDb;");
if(!mysqli_query($connection, "CREATE DATABASE MyDb;")){
echo "Error creating database: " . $connection->error;
}
mysqli_query($connection, "use MyDb;");
mysqli_query($connection, "DROP TABLE if exists employee;");
$table="CREATE TABLE employee (
id INT(6) UNSIGNED AUTO_INCREMENT PRIMARY KEY,
firstname VARCHAR(30) NOT NULL,
lastname VARCHAR(30) NOT NULL,
email VARCHAR(50),
reg_date TIMESTAMP
)";
$value="INSERT INTO employee (firstname,lastname,email) VALUES ('john', 'steve', '[email protected]')";
if(!mysqli_query($connection, $table)){echo "Error creating table: " . $connection->error;}
if(!mysqli_query($connection, $value)){echo "Error inserting values: " . $connection->error;}*/
Try looking at decode string encoded in utf-8 format in android but it doesn't look like your string is encoded with anything particular. What do you think the output should be?
I guess this is also possible like this?
var movies = _db.Movies.TakeWhile(p => p.Genres.Any(x => listOfGenres.Contains(x));
Is "TakeWhile" worse than "Where" in sense of performance or clarity?
Document object model.
The DOM is the way Javascript sees its containing pages' data. It is an object that includes how the HTML/XHTML/XML is formatted, as well as the browser state.
A DOM element is something like a DIV, HTML, BODY element on a page. You can add classes to all of these using CSS, or interact with them using JS.
Think about it this way: you access static members via type name, like this:
MyStaticType.MyStaticMember();
Were you to inherit from that class, you would have to access it via the new type name:
MyNewType.MyStaticMember();
Thus, the new item bears no relationships to the original when used in code. There would be no way to take advantage of any inheritance relationship for things like polymorphism.
Perhaps you're thinking you just want to extend some of the items in the original class. In that case, there's nothing preventing you from just using a member of the original in an entirely new type.
Perhaps you want to add methods to an existing static type. You can do that already via extension methods.
Perhaps you want to be able to pass a static Type
to a function at runtime and call a method on that type, without knowing exactly what the method does. In that case, you can use an Interface.
So, in the end you don't really gain anything from inheriting static classes.
You could just specify the following property -Dhttps.protocols=TLSv1.1,TLSv1.2 at your server which configures the JVM to specify which TLS protocol version should be used during all https connections from client.
plt.imshow
displays the image on the axes, but if you need to display multiple images you use show()
to finish the figure. The next example shows two figures:
import numpy as np
from keras.datasets import mnist
(X_train,y_train),(X_test,y_test) = mnist.load_data()
from matplotlib import pyplot as plt
plt.imshow(X_train[0])
plt.show()
plt.imshow(X_train[1])
plt.show()
In Google Colab, if you comment out the show()
method from previous example just a single image will display (the later one connected with X_train[1]
).
Here is the content from the help:
plt.show(*args, **kw)
Display a figure.
When running in ipython with its pylab mode, display all
figures and return to the ipython prompt.
In non-interactive mode, display all figures and block until
the figures have been closed; in interactive mode it has no
effect unless figures were created prior to a change from
non-interactive to interactive mode (not recommended). In
that case it displays the figures but does not block.
A single experimental keyword argument, *block*, may be
set to True or False to override the blocking behavior
described above.
plt.imshow(X, cmap=None, norm=None, aspect=None, interpolation=None, alpha=None, vmin=None, vmax=None, origin=None, extent=None, shape=None, filternorm=1, filterrad=4.0, imlim=None, resample=None, url=None, hold=None, data=None, **kwargs)
Display an image on the axes.
Parameters
----------
X : array_like, shape (n, m) or (n, m, 3) or (n, m, 4)
Display the image in `X` to current axes. `X` may be an
array or a PIL image. If `X` is an array, it
can have the following shapes and types:
- MxN -- values to be mapped (float or int)
- MxNx3 -- RGB (float or uint8)
- MxNx4 -- RGBA (float or uint8)
The value for each component of MxNx3 and MxNx4 float arrays
should be in the range 0.0 to 1.0. MxN arrays are mapped
to colors based on the `norm` (mapping scalar to scalar)
and the `cmap` (mapping the normed scalar to a color).
try this code, it will work for all version of URLs like
RewriteCond %{HTTPS} off
RewriteCond %{HTTPS_HOST} !^www.website.com$ [NC]
RewriteRule ^(.*)$ https://www.website.com/$1 [L,R=301]
Something like this should do the trick (However, read after the snippet for more info)
CREATE PROCEDURE GetFilteredData()
BEGIN
DECLARE bDone INT;
DECLARE var1 CHAR(16); -- or approriate type
DECLARE Var2 INT;
DECLARE Var3 VARCHAR(50);
DECLARE curs CURSOR FOR SELECT something FROM somewhere WHERE some stuff;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET bDone = 1;
DROP TEMPORARY TABLE IF EXISTS tblResults;
CREATE TEMPORARY TABLE IF NOT EXISTS tblResults (
--Fld1 type,
--Fld2 type,
--...
);
OPEN curs;
SET bDone = 0;
REPEAT
FETCH curs INTO var1,, b;
IF whatever_filtering_desired
-- here for whatever_transformation_may_be_desired
INSERT INTO tblResults VALUES (var1, var2, var3 ...);
END IF;
UNTIL bDone END REPEAT;
CLOSE curs;
SELECT * FROM tblResults;
END
A few things to consider...
Concerning the snippet above:
More generally: trying to avoid needing a cursor.
I purposely named the cursor variable curs[e], because cursors are a mixed blessing. They can help us implement complicated business rules that may be difficult to express in the declarative form of SQL, but it then brings us to use the procedural (imperative) form of SQL, which is a general feature of SQL which is neither very friendly/expressive, programming-wise, and often less efficient performance-wise.
Maybe you can look into expressing the transformation and filtering desired in the context of a "plain" (declarative) SQL query.
In addition to @erel's answer, I had to make this edit (I'm using org.json.simple
) to the outer else
for dealing with JSONArray
's:
// existing value for "key" - recursively deep merge:
if (value instanceof JSONObject) {
JSONObject valueJson = (JSONObject)value;
deepMerge(valueJson, (JSONObject) target.get(key));
}
// insert each JSONArray's JSONObject in place
if (value instanceof JSONArray) {
((JSONArray) value).forEach(
jsonobj ->
((JSONArray) target.get(key)).add(jsonobj));
}
else {
target.put(key, value);
}
SELECT e1.empno EmployeeId, e1.ename EmployeeName,
e1.mgr ManagerId, e2.ename AS ManagerName
FROM emp e1, emp e2
where e1.mgr = e2.empno
I'm surprised no one mentioned mapping the file into memory: mmap
With this you can access the file as if it were already loaded into memory and the OS will take care of mapping it in and out as possible. Also, if you do this from 2 independent processes and they map the file "shared", they will share the underlying memory.
Once mapped, it will behave like a bytearray. You can use regular expressions, find or any of the other common methods.
Beware that this approach is a little OS specific. It will not be automatically portable.
Try something like this: http://jsfiddle.net/6jdj3pcL/1/
<p>Here is a paragraph with a lot of text ...</p>
p {
line-height: 1.5em;
height: 3em;
overflow: hidden;
width: 300px;
}
p::before {
content: '...';
float: right;
margin-top: 1.5em;
}
Then just Select
:
var list = source.Select(s=>new { ID = s.ID, Name = s.Name }).ToList();
(edit) Actually - the names could be inferred in this case, so you could use:
var list = source.Select(s=>new { s.ID, s.Name }).ToList();
which saves a few electrons...
Thought I would add an answer to this one, since my problem was simple but hard to notice. In particular I had copy/pasted an existing meta-data element when creating my com.google.firebase.messaging.default_notification_icon
, which used an android:value
tag to specify its value. This will not work for the notification icon, and once I changed it to android:resource
everything worked as expected.
the problem is blade, try this
<i class="fa" v-bind:class="['{{content['cravings']}}' ? 'fa-checkbox-marked' : 'fa-checkbox-blank-outline']"></i>
Without using CDATA, try
<xsl:value-of select="'
'" />
Note the double and single quotes.
That is particularly useful if you are not creating xml
aka text. <xsl:output method="text" />
Anvakas brilliant code is for Windows Desktop applications. If you are like me and needed the same solution for Windows Store apps this code might be handy:
public static class FocusExtension
{
public static bool GetIsFocused(DependencyObject obj)
{
return (bool)obj.GetValue(IsFocusedProperty);
}
public static void SetIsFocused(DependencyObject obj, bool value)
{
obj.SetValue(IsFocusedProperty, value);
}
public static readonly DependencyProperty IsFocusedProperty =
DependencyProperty.RegisterAttached(
"IsFocused", typeof(bool), typeof(FocusExtension),
new PropertyMetadata(false, OnIsFocusedPropertyChanged));
private static void OnIsFocusedPropertyChanged(DependencyObject d,
DependencyPropertyChangedEventArgs e)
{
if ((bool)e.NewValue)
{
var uie = d as Windows.UI.Xaml.Controls.Control;
if( uie != null )
{
uie.Focus(FocusState.Programmatic);
}
}
}
}
openssl pkcs12 -in YOUR_CERTIFICATE.p12 -out YOUR_CERTIFICATE.pem -nodes -clcerts
Import the HttpModule
import { HttpModule } from '@angular/http';
@NgModule({
imports: [ BrowserModule, HttpModule ],
providers: [],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export default class AppModule { }
platformBrowserDynamic().bootstrapModule(AppModule);
Ideally, you split up this code in two separate files. For further information read:
Another option is to use the readonly attribute.
<select readonly="readonly">
....
</select>
With readonly the value is still submitted, the input field is grayed out and the user cannot edit it.
Edit:
Quoted from http://www.w3.org/TR/html401/interact/forms.html#adef-readonly:
When it says the element may be succesful, it means it may be submitted, as stated here: http://www.w3.org/TR/html401/interact/forms.html#successful-controls
For another one-liner solution:
def count_letters(word): return len(filter(lambda x: x not in " ", word))
This works by using the filter function, which lets you pick the elements of a list that return true when passed to a boolean-valued function that you pass as the first argument. I'm using a lambda function to make a quick, throwaway function for that purpose.
>>> count_letters("This is a test")
11
You could easily extend this to exclude any selection of characters you like:
def count_letters(word, exclude): return len(filter(lambda x: x not in exclude, word))
>>> count_letters ("This is a test", "aeiou ")
7
Edit: However, you wanted to get your own code to work, so here are some thoughts. The first problem is that you weren't setting a list for the Counter object to count. However, since you're looking for the total number of letters, you need to join the words back together again rather than counting each word individually. Looping to add up the number of each letter isn't really necessary because you can pull out the list of values and use "sum" to add them.
Here's a version that's as close to your code as I could make it, without the loop:
from collections import Counter
import string
def count_letters(word):
wordsList = string.split(word)
count = Counter("".join(wordsList))
return sum(dict(count).values())
word = "The grey old fox is an idiot"
print count_letters(word)
Edit: In response to a comment asking why not to use a for loop, it's because it's not necessary, and in many cases using the many implicit ways to perform repetitive tasks in Python can be faster, simpler to read, and more memory-efficient.
For example, I could have written
joined_words = []
for curr_word in wordsList:
joined_words.extend(curr_word)
count = Counter(joined_words)
but in doing this I wind up allocating an extra array and executing a loop through the Python interpreter that my solution:
count = Counter("".join(wordsList))
would execute in a chunk of optimized, compiled C code. My solution isn't the only way to simplify that loop, but it's one way.
For me the following command did the trick
sudo apt install php-mbstring
I had the same question. This works great in Wordpress!
<a href="//pinterest.com/pin/create/link/?url=<?php the_permalink();?>&description=<?php the_title();?>">Pin this</a>
Just change moveCamera to animateCamera like below
Googlemap.animateCamera(CameraUpdateFactory.newLatLngZoom(locate, 16F))
protected static bool CheckDate(DateTime date)
{
if(new DateTime() == date)
return false;
else
return true;
}
melt()
from the reshape2 package gets you close ...
library(reshape2)
(res <- melt(as.data.frame(mat), id="time"))
# time variable value
# 1 0.0 C_0 0.1
# 2 0.5 C_0 0.2
# 3 1.0 C_0 0.3
# 4 0.0 C_1 0.3
# 5 0.5 C_1 0.4
# 6 1.0 C_1 0.5
... although you may want to post-process its results to get your preferred column names and ordering.
setNames(res[c("variable", "time", "value")], c("name", "time", "val"))
# name time val
# 1 C_0 0.0 0.1
# 2 C_0 0.5 0.2
# 3 C_0 1.0 0.3
# 4 C_1 0.0 0.3
# 5 C_1 0.5 0.4
# 6 C_1 1.0 0.5
I made a function version of Oscar's answer, this one also copies the environment and changes to the appropriate directory
function new_window {
TMP_FILE=$(mktemp "/tmp/command.XXXXXX")
echo "#!/usr/bin/env bash" > $TMP_FILE
# Copy over environment (including functions), but filter out readonly stuff
set | grep -v "\(BASH_VERSINFO\|EUID\|PPID\|SHELLOPTS\|UID\)" >> $TMP_FILE
# Copy over exported envrionment
export -p >> $TMP_FILE
# Change to directory
echo "cd $(pwd)" >> $TMP_FILE
# Copy over target command line
echo "$@" >> $TMP_FILE
chmod +x "$TMP_FILE"
open -b com.apple.terminal "$TMP_FILE"
sleep .1 # Wait for terminal to start
rm "$TMP_FILE"
}
You can use it like this:
new_window my command here
or
new_window ssh example.com
The application/x-www-form-urlencoded
Content-type header is not needed. Unless the request handler expects the parameters coming from request body. Try it out:
curl -X DELETE "http://localhost:5000/locations?id=3"
or
curl -X GET "http://localhost:5000/locations?id=3"
<div style="width:100px;height:100px;overflow-x:hidden;overflow-y:auto;background-color:#000000">
Try this scenario:
Array = A1:C7
. A1-A3
have values, B2-B6
have value and C1
, C3
and C6
have values.
To get a count of the number of rows add a column D
(you can hide it after formulas are set up) and in D1
put formula =If(Sum(A1:C1)>0,1,0)
. Copy the formula from D1
through D7
(for others searching who are not excel literate, the numbers in the sum formula will change to the row you are on and this is fine).
Now in C8
make a sum formula that adds up the D
column and the answer should be 6
. For visually pleasing purposes hide column D
.
Recently, AWS added a feature called Sessions Manager to the Systems Manager service that allows one to SSH into an instance without needing to setup a private key or opening up port 22. I believe authentication is done with IAM and optionally MFA.
You can find out more about it here:
This may be of help to a few who are struggling like I was:
var data = myform.getRange("A:AA").getValues().pop();
var myvariable1 = data[4];
var myvariable2 = data[7];
In ECS6, one may use Array.from()
:
const listItems = document.querySelector('ul').children;
const listArray = Array.from(listItems);
listArray.forEach((item) => {console.log(item)});
In Twig:
{% for l in locations %}
<tr>
<td>
<input type="checkbox" class="filled-in" id="filled-in-box-{{ l.idLocation }}" />
<label for="filled-in-box-{{ l.idLocation }}"></label>
</td>
<td>{{ l.loc }}</td>
<td>{{ l.mun }}</td>
<td>{{ l.pro }}</td>
<td>{{ l.cou }}</td>
{#<td>
{% if l.active == 1 %}
<span class="fa fa-check"></span>
{% else %}
<span class="fa fa-close"></span>
{% endif %}
</td>#}
<td><a href="{{ url('admin_edit_location',{'id': l.idLocation}) }}" class="db-list-edit"><span class="fa fa-pencil-square-o"></span></a>
</td>
</tr>{% endfor %}
The route admin_edit_location
:
admin_edit_location:
path: /edit_location/{id}
defaults: { _controller: "AppBundle:Admin:editLocation" }
methods: GET
And the controller
public function editLocationAction($id){
// use $id
$em = $this->getDoctrine()->getManager();
$location = $em->getRepository('BackendBundle:locations')->findOneBy(array(
'id' => $id
));
}
It stores an exact, versioned dependency tree rather than using starred versioning like package.json itself (e.g. 1.0.*). This means you can guarantee the dependencies for other developers or prod releases, etc. It also has a mechanism to lock the tree but generally will regenerate if package.json changes.
From the npm docs:
package-lock.json is automatically generated for any operations where npm modifies either the node_modules tree, or package.json. It describes the exact tree that was generated, such that subsequent installs are able to generate identical trees, regardless of intermediate dependency updates.
This file is intended to be committed into source repositories, and serves various purposes:
Describe a single representation of a dependency tree such that teammates, deployments, and continuous integration are guaranteed to install exactly the same dependencies.
Provide a facility for users to "time-travel" to previous states of node_modules without having to commit the directory itself.
To facilitate greater visibility of tree changes through readable source control diffs.
And optimize the installation process by allowing npm to skip repeated metadata resolutions for previously-installed packages."
To answer jrahhali's question below about just using the package.json with exact version numbers. Bear in mind that your package.json contains only your direct dependencies, not the dependencies of your dependencies (sometimes called nested dependencies). This means with the standard package.json you can't control the versions of those nested dependencies, referencing them directly or as peer dependencies won't help as you also don't control the version tolerance that your direct dependencies define for these nested dependencies.
Even if you lock down the versions of your direct dependencies you cannot 100% guarantee that your full dependency tree will be identical every time. Secondly you might want to allow non-breaking changes (based on semantic versioning) of your direct dependencies which gives you even less control of nested dependencies plus you again can't guarantee that your direct dependencies won't at some point break semantic versioning rules themselves.
The solution to all this is the lock file which as described above locks in the versions of the full dependency tree. This allows you to guarantee your dependency tree for other developers or for releases whilst still allowing testing of new dependency versions (direct or indirect) using your standard package.json.
NB. The previous shrink wrap json did pretty much the same thing but the lock file renames it so that it's function is clearer. If there's already a shrink wrap file in the project then this will be used instead of any lock file.
Of these two, the first one is a type mistake: '\0' is a character, not a pointer. The compiler still accepts it because it can convert it to a pointer.
The second one "works" only by coincidence. "\0" is a string literal of two characters. If those occur in multiple places in the source file, the compiler may, but need not, make them identical.
So the proper way to write the first one is
char* array[] = { "abc", "def", NULL };
and you test for array[index]==NULL
. The proper way to test for the second one is
array[index][0]=='\0'
; you may also drop the '\0' in the string (i.e. spell it as ""
) since that will already include a null byte.
In VBA we can not use if jj = 5 or 6 then
we must use if jj = 5 or jj = 6 then
maybe this:
If inputWks.Range("d9") > 0 And (inputWks.Range("d11") = "Restricted_Expenditure" Or inputWks.Range("d11") = "Unrestricted_Expenditure") Then
What about this recursive method?
private static int length = 0;
public static int length(int n) {
length++;
if((n / 10) < 10) {
length++;
} else {
length(n / 10);
}
return length;
}
Consider using System.Windows.Forms.Timer
instead of System.Threading.Timer
for a GUI application, for timers that are based on the Windows message queue instead of on dedicated threads or the thread pool.
In your scenario, for the purpose of periodic updates of UI, it seems particularly appropriate since you don't really have a background work or long calculation to perform. You just want to do periodic small tasks that have to happen on the UI thread anyway.
text.indexOf("newString")
is the best method instead of startsWith
.
Example:
var text = "Format";
if(text.indexOf("Format") == 0) {
alert(text + " = Format");
} else {
alert(text + " != Format");
}
for(int key: hm.keySet()) {
if(hm.get(key).equals(value)) {
System.out.println(key);
}
}
-- Login to psql and run the following
-- What is the result?
SELECT MAX(id) FROM your_table;
-- Then run...
-- This should be higher than the last result.
SELECT nextval('your_table_id_seq');
-- If it's not higher... run this set the sequence last to your highest id.
-- (wise to run a quick pg_dump first...)
BEGIN;
-- protect against concurrent inserts while you update the counter
LOCK TABLE your_table IN EXCLUSIVE MODE;
-- Update the sequence
SELECT setval('your_table_id_seq', COALESCE((SELECT MAX(id)+1 FROM your_table), 1), false);
COMMIT;
// Create a Employee table
create table employee(
id number(10),
name varchar2(100),
salary number(10)
);
======================================================================= //Employee.java
public class Employee {
private int id;
private String name;
private float salary;
//no-arg and parameterized constructors
public Employee(){};
public Employee(int id, String name, float salary){
this.id=id;
this.name=name;
this.salary=salary;
}
//getters and setters
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public float getSalary() {
return salary;
}
public void setSalary(float salary) {
this.salary = salary;
}
public String toString(){
return id+" "+name+" "+salary;
}
}
========================================================================= //EmployeeDao.java
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate;
public class EmployeeDao {
private JdbcTemplate jdbcTemplate;
private NamedParameterJdbcTemplate nameTemplate;
public void setnameTemplate(NamedParameterJdbcTemplate template) {
this.nameTemplate = template;
}
public void setJdbcTemplate(JdbcTemplate jdbcTemplate) {
this.jdbcTemplate = jdbcTemplate;
}
// BY using JdbcTemplate
public int saveEmployee(Employee e){
int id = e.getId();
String name = e.getName();
float salary = e.getSalary();
Object p[] = {id, name, salary};
String query="insert into employee values(?,?,?)";
return jdbcTemplate.update(query, p);
/*String query="insert into employee values('"+e.getId()+"','"+e.getName()+"','"+e.getSalary()+"')";
return jdbcTemplate.update(query);
*/
}
//By using NameParameterTemplate
public void insertEmploye(Employee e) {
String query="insert into employee values (:id,:name,:salary)";
Map<String,Object> map=new HashMap<String,Object>();
map.put("id",e.getId());
map.put("name",e.getName());
map.put("salary",e.getSalary());
nameTemplate.execute(query,map,new MyPreparedStatement());
}
// Updating Employee
public int updateEmployee(Employee e){
String query="update employee set name='"+e.getName()+"',salary='"+e.getSalary()+"' where id='"+e.getId()+"' ";
return jdbcTemplate.update(query);
}
// Deleting a Employee row
public int deleteEmployee(Employee e){
String query="delete from employee where id='"+e.getId()+"' ";
return jdbcTemplate.update(query);
}
//Selecting Single row with condition and also all rows
public int selectEmployee(Employee e){
//String query="select * from employee where id='"+e.getId()+"' ";
String query="select * from employee";
List<Map<String, Object>> rows = jdbcTemplate.queryForList(query);
for(Map<String, Object> row : rows){
String id = row.get("id").toString();
String name = (String)row.get("name");
String salary = row.get("salary").toString();
System.out.println(id + " " + name + " " + salary );
}
return 1;
}
// Can use MyrowMapper class an implementation class for RowMapper interface
public void getAllEmployee()
{
String query="select * from employee";
List<Employee> l = jdbcTemplate.query(query, new MyrowMapper());
Iterator it=l.iterator();
while(it.hasNext())
{
Employee e=(Employee)it.next();
System.out.println(e.getId()+" "+e.getName()+" "+e.getSalary());
}
}
//Can use directly a RowMapper implementation class without an object creation
public List<Employee> getAllEmployee1(){
return jdbcTemplate.query("select * from employee",new RowMapper<Employee>(){
@Override
public Employee mapRow(ResultSet rs, int rownumber) throws SQLException {
Employee e=new Employee();
e.setId(rs.getInt(1));
e.setName(rs.getString(2));
e.setSalary(rs.getFloat(3));
return e;
}
});
}
// End of all the function
}
================================================================ //MyrowMapper.java
import java.sql.ResultSet;
import java.sql.SQLException;
import org.springframework.jdbc.core.RowMapper;
public class MyrowMapper implements RowMapper<Employee> {
@Override
public Employee mapRow(ResultSet rs, int rownumber) throws SQLException
{
System.out.println("mapRow()====:"+rownumber);
Employee e=new Employee();
e.setId(rs.getInt("id"));
e.setName(rs.getString("name"));
e.setSalary(rs.getFloat("salary"));
return e;
}
}
========================================================== //MyPreparedStatement.java
import java.sql.PreparedStatement;
import java.sql.SQLException;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.PreparedStatementCallback;
public class MyPreparedStatement implements PreparedStatementCallback<Object> {
@Override
public Object doInPreparedStatement(PreparedStatement ps)
throws SQLException, DataAccessException {
return ps.executeUpdate();
}
}
===================================================================== //Test.java
import java.util.List;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class Test {
public static void main(String[] args) {
ApplicationContext ctx=new ClassPathXmlApplicationContext("applicationContext.xml");
EmployeeDao dao=(EmployeeDao)ctx.getBean("edao");
// By calling constructor for insert
/*
int status=dao.saveEmployee(new Employee(103,"Ajay",35000));
System.out.println(status);
*/
// By calling PreparedStatement
dao.insertEmploye(new Employee(103,"Roh",25000));
// By calling setter-getter for update
/*
Employee e=new Employee();
e.setId(102);
e.setName("Rohit");
e.setSalary(8000000);
int status=dao.updateEmployee(e);
*/
// By calling constructor for update
/*
int status=dao.updateEmployee(new Employee(102,"Sadhan",15000));
System.out.println(status);
*/
// Deleting a record
/*
Employee e=new Employee();
e.setId(102);
int status=dao.deleteEmployee(e);
System.out.println(status);
*/
// Selecting single or all rows
/*
Employee e=new Employee();
e.setId(102);
int status=dao.selectEmployee(e);
System.out.println(status);
*/
// Can use MyrowMapper class an implementation class for RowMapper interface
dao.getAllEmployee();
// Can use directly a RowMapper implementation class without an object creation
/*
List<Employee> list=dao.getAllEmployee1();
for(Employee e1:list)
System.out.println(e1);
*/
}
}
================================================================== //applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="ds" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="oracle.jdbc.driver.OracleDriver" />
<property name="url" value="jdbc:oracle:thin:@localhost:1521:xe" />
<property name="username" value="hr" />
<property name="password" value="hr" />
</bean>
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="ds"></property>
</bean>
<bean id="nameTemplate"
class="org.springframework.jdbc.core.namedparam.NamedParameterJdbcTemplate">
<constructor-arg ref="ds"></constructor-arg>
</bean>
<bean id="edao" class="EmployeeDao">
<!-- Can use both -->
<property name="nameTemplate" ref="nameTemplate"></property>
<property name="jdbcTemplate" ref="jdbcTemplate"></property>
</bean>
===================================================================
Please give a try:
\Q and \E as anchors
Put an Or condition to match either a full word or regex.
Ref Link : How to match a whole word that includes special characters in regex
In the picture you can see. In the set script options, choose the last option: Types of data to script you click at the right side and you choose what you want. This is the option you should choose to export a schema and data
The constructor needs to be like a factory method and return what you want. If you need additional methods/properties, you can add them to the object before returning it.
function NotImplementedError(message) { return new Error("Not implemented", message); }
x = new NotImplementedError();
Though I'm not sure why you'd need to do this. Why not just use new Error...
? Custom exceptions don't really add much in JavaScript (or probably any untyped language).
You start by writing a class that derives from Attribute:
public class MyCustomAttribute: Attribute
{
public string SomeProperty { get; set; }
}
Then you could decorate anything (class, method, property, ...) with this attribute:
[MyCustomAttribute(SomeProperty = "foo bar")]
public class Foo
{
}
and finally you would use reflection to fetch it:
var customAttributes = (MyCustomAttribute[])typeof(Foo).GetCustomAttributes(typeof(MyCustomAttribute), true);
if (customAttributes.Length > 0)
{
var myAttribute = customAttributes[0];
string value = myAttribute.SomeProperty;
// TODO: Do something with the value
}
You could limit the target types to which this custom attribute could be applied using the AttributeUsage attribute:
/// <summary>
/// This attribute can only be applied to classes
/// </summary>
[AttributeUsage(AttributeTargets.Class)]
public class MyCustomAttribute : Attribute
Important things to know about attributes:
In terms of the algorithms themselves I would go with AES, for the simple reason is that it's been accepted by NIST and will be peer reviewed and cryptanalyzed for years. However I would suggest that in practical applications, unless you're storing some file that the government wants to keep secret (in which case the NSA would probably supply you with a better algorithm than both AES and Blowfish), using either of these algorithms won't make too much of a difference. All the security should be in the key, and both of these algorithms are resistant to brute force attacks. Blowfish has only shown to be weak on implementations that don't make use of the full 16 rounds. And while AES is newer, that fact should make you lean more towards BlowFish (if you were only taking age into consideration). Think of it this way, BlowFish has been around since the 90's and nobody (that we know of) has broken it yet....
Here is what I would pose to you... instead of looking at these two algorithms and trying to choose between the algorithm, why don't you look at your key generation scheme. A potential attacker who wants to decrypt your file is not going to sit there and come up with a theoretical set of keys that can be used and then do a brute force attack that can take months. Instead he is going to exploit something else, such as attacking your server hardware, reverse engineering your assembly to see the key, trying to find some config file that has the key in it, or maybe blackmailing your friend to copy a file from your computer. Those are going to be where you are most vulnerable, not the algorithm.
Of course, all modern browsers now support the following simpler way:
var elements = document.getElementsByClassName('someClass');
but be warned it doesn't work with IE8 or before. See http://caniuse.com/getelementsbyclassname
Also, not all browsers will return a pure NodeList
like they're supposed to.
You're probably still better off using your favorite cross-browser library.
[ ]
defines a character class. So every character you set there, will match. [012]
will match 0
or 1
or 2
and [0-2]
behaves the same.
What you want is groupings to define a or-statement. Use (s|season)
for your issue.
Btw. you have to watch out. Metacharacters in normal regex (or inside a grouping) are different from character class. A character class is like a sub-language. [$A]
will only match $
or A
, nothing else. No escaping here for the dollar.
Replace <?php the_content();?>
by the code below
<?php
$char_limit = 100; //character limit
$content = $post->post_content; //contents saved in a variable
echo substr(strip_tags($content), 0, $char_limit);
?>
I had the same problem and got it resolved by deleting .m2 maven repo (C:\Users\user\ .m2)
It's not generally correct that you can "remove an item from a database" with both methods. To be precise it is like so:
ObjectContext.DeleteObject(entity)
marks the entity as Deleted
in the context. (It's EntityState
is Deleted
after that.) If you call SaveChanges
afterwards EF sends a SQL DELETE
statement to the database. If no referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
EntityCollection.Remove(childEntity)
marks the relationship between parent and childEntity
as Deleted
. If the childEntity
itself is deleted from the database and what exactly happens when you call SaveChanges
depends on the kind of relationship between the two:
If the relationship is optional, i.e. the foreign key that refers from the child to the parent in the database allows NULL
values, this foreign will be set to null and if you call SaveChanges
this NULL
value for the childEntity
will be written to the database (i.e. the relationship between the two is removed). This happens with a SQL UPDATE
statement. No DELETE
statement occurs.
If the relationship is required (the FK doesn't allow NULL
values) and the relationship is not identifying (which means that the foreign key is not part of the child's (composite) primary key) you have to either add the child to another parent or you have to explicitly delete the child (with DeleteObject
then). If you don't do any of these a referential constraint is violated and EF will throw an exception when you call SaveChanges
- the infamous "The relationship could not be changed because one or more of the foreign-key properties is non-nullable" exception or similar.
If the relationship is identifying (it's necessarily required then because any part of the primary key cannot be NULL
) EF will mark the childEntity
as Deleted
as well. If you call SaveChanges
a SQL DELETE
statement will be sent to the database. If no other referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
I am actually a bit confused about the Remarks section on the MSDN page you have linked because it says: "If the relationship has a referential integrity constraint, calling the Remove method on a dependent object marks both the relationship and the dependent object for deletion.". This seems unprecise or even wrong to me because all three cases above have a "referential integrity constraint" but only in the last case the child is in fact deleted. (Unless they mean with "dependent object" an object that participates in an identifying relationship which would be an unusual terminology though.)
I had this problem too (encountered through Macports compilers). Previous versions of Xcode would let you install command line tools through xcode/Preferences, but xcode5 doesn't give a command line tools option in the GUI, that so I assumed it was automatically included now. Try running this command:
xcode-select --install
(as per this answer)
sudo apt-get install libc6-dev
(as per this comment)
apk add libc-dev
This is a bit outside the scope of your question, but to avoid any potential confusion for readers who are new to VBA: End
and End Sub
are not the same. They don't perform the same task.
End
puts a stop to ALL code execution and you should almost always use Exit Sub
(or Exit Function
, respectively).
End halts ALL exectution. While this sounds tempting to do it also clears all global and static variables. (source)
See also the MSDN dox for the End Statement
When executed, the
End
statement resets allmodule-level variables and all static local variables in allmodules. To preserve the value of these variables, use theStop
statement instead. You can then resume execution while preserving the value of those variables.Note The
End
statement stops code execution abruptly, without invoking the Unload, QueryUnload, or Terminate event, or any other Visual Basic code. Code you have placed in the Unload, QueryUnload, and Terminate events offorms andclass modules is not executed. Objects created from class modules are destroyed, files opened using the Open statement are closed, and memory used by your program is freed. Object references held by other programs are invalidated.
Nor is End Sub
and Exit Sub
the same. End Sub
can't be called in the same way Exit Sub
can be, because the compiler doesn't allow it.
This again means you have to Exit Sub
, which is a perfectly legal operation:
Exit Sub
Immediately exits the Sub procedure in which it appears. Execution continues with the statement following the statement that called the Sub procedure. Exit Sub can be used only inside a Sub procedure.
Additionally, and once you get the feel for how procedures work, obviously, End Sub
does not clear any global variables. But it does clear local (Dim'd) variables:
End Sub
Terminates the definition of this procedure.
A binary tree is a tree data structure in which each node has at most two child nodes, usually distinguished as "left" and "right". Nodes with children are parent nodes, and child nodes may contain references to their parents. Outside the tree, there is often a reference to the "root" node (the ancestor of all nodes), if it exists. Any node in the data structure can be reached by starting at root node and repeatedly following references to either the left or right child. In a binary tree a degree of every node is maximum two.
Binary trees are useful, because as you can see in the picture, if you want to find any node in the tree, you only have to look a maximum of 6 times. If you wanted to search for node 24, for example, you would start at the root.
This search is illustrated below:
You can see that you can exclude half of the nodes of the entire tree on the first pass. and half of the left subtree on the second. This makes for very effective searches. If this was done on 4 billion elements, you would only have to search a maximum of 32 times. Therefore, the more elements contained in the tree, the more efficient your search can be.
Deletions can become complex. If the node has 0 or 1 child, then it's simply a matter of moving some pointers to exclude the one to be deleted. However, you can not easily delete a node with 2 children. So we take a short cut. Let's say we wanted to delete node 19.
Since trying to determine where to move the left and right pointers to is not easy, we find one to substitute it with. We go to the left sub-tree, and go as far right as we can go. This gives us the next greatest value of the node we want to delete.
Now we copy all of 18's contents, except for the left and right pointers, and delete the original 18 node.
To create these images, I implemented an AVL tree, a self balancing tree, so that at any point in time, the tree has at most one level of difference between the leaf nodes (nodes with no children). This keeps the tree from becoming skewed and maintains the maximum O(log n)
search time, with the cost of a little more time required for insertions and deletions.
Here is a sample showing how my AVL tree has kept itself as compact and balanced as possible.
In a sorted array, lookups would still take O(log(n))
, just like a tree, but random insertion and removal would take O(n) instead of the tree's O(log(n))
. Some STL containers use these performance characteristics to their advantage so insertion and removal times take a maximum of O(log n)
, which is very fast. Some of these containers are map
, multimap
, set
, and multiset
.
Example code for an AVL tree can be found at http://ideone.com/MheW8
It worked for me.
Here is my test code. Test run follows:
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
FileInfo f = new FileInfo(args[0]);
bool result = modifyFile(f, args[1],args[2]);
}
private static bool modifyFile(FileInfo file, string extractedMethod, string modifiedMethod)
{
Boolean result = false;
FileStream fs = new FileStream(file.FullName + ".tmp", FileMode.Create, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);
StreamReader streamreader = file.OpenText();
String originalPath = file.FullName;
string input = streamreader.ReadToEnd();
Console.WriteLine("input : {0}", input);
String tempString = input.Replace(extractedMethod, modifiedMethod);
Console.WriteLine("replaced String {0}", tempString);
try
{
sw.Write(tempString);
sw.Flush();
sw.Close();
sw.Dispose();
fs.Close();
fs.Dispose();
streamreader.Close();
streamreader.Dispose();
File.Copy(originalPath, originalPath + ".old", true);
FileInfo newFile = new FileInfo(originalPath + ".tmp");
File.Delete(originalPath);
File.Copy(originalPath + ".tmp", originalPath, true);
result = true;
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
return result;
}
}
}
C:\testarea>ConsoleApplication1.exe file.txt padding testing
input : <style type="text/css">
<!--
#mytable {
border-collapse: collapse;
width: 300px;
}
#mytable th,
#mytable td
{
border: 1px solid #000;
padding: 3px;
}
#mytable tr.highlight {
background-color: #eee;
}
//-->
</style>
replaced String <style type="text/css">
<!--
#mytable {
border-collapse: collapse;
width: 300px;
}
#mytable th,
#mytable td
{
border: 1px solid #000;
testing: 3px;
}
#mytable tr.highlight {
background-color: #eee;
}
//-->
</style>
[(k,v) for (k,v) in d.iteritems()]
and
[(v,k) for (k,v) in d.iteritems()]
Do not use authorization instead of authentication. I should get whole access to service all clients with header. The working code is :
public class TokenAuthenticationHandler : AuthenticationHandler<TokenAuthenticationOptions>
{
public IServiceProvider ServiceProvider { get; set; }
public TokenAuthenticationHandler (IOptionsMonitor<TokenAuthenticationOptions> options, ILoggerFactory logger, UrlEncoder encoder, ISystemClock clock, IServiceProvider serviceProvider)
: base (options, logger, encoder, clock)
{
ServiceProvider = serviceProvider;
}
protected override Task<AuthenticateResult> HandleAuthenticateAsync ()
{
var headers = Request.Headers;
var token = "X-Auth-Token".GetHeaderOrCookieValue (Request);
if (string.IsNullOrEmpty (token)) {
return Task.FromResult (AuthenticateResult.Fail ("Token is null"));
}
bool isValidToken = false; // check token here
if (!isValidToken) {
return Task.FromResult (AuthenticateResult.Fail ($"Balancer not authorize token : for token={token}"));
}
var claims = new [] { new Claim ("token", token) };
var identity = new ClaimsIdentity (claims, nameof (TokenAuthenticationHandler));
var ticket = new AuthenticationTicket (new ClaimsPrincipal (identity), this.Scheme.Name);
return Task.FromResult (AuthenticateResult.Success (ticket));
}
}
Startup.cs :
#region Authentication
services.AddAuthentication (o => {
o.DefaultScheme = SchemesNamesConst.TokenAuthenticationDefaultScheme;
})
.AddScheme<TokenAuthenticationOptions, TokenAuthenticationHandler> (SchemesNamesConst.TokenAuthenticationDefaultScheme, o => { });
#endregion
And mycontroller.cs
[Authorize(AuthenticationSchemes = SchemesNamesConst.TokenAuthenticationDefaultScheme)]
public class MainController : BaseController
{ ... }
I can't find TokenAuthenticationOptions now, but it was empty. I found the same class PhoneNumberAuthenticationOptions :
public class PhoneNumberAuthenticationOptions : AuthenticationSchemeOptions
{
public Regex PhoneMask { get; set; }// = new Regex("7\\d{10}");
}
You should define static class SchemesNamesConst
. Something like:
public static class SchemesNamesConst
{
public const string TokenAuthenticationDefaultScheme = "TokenAuthenticationScheme";
}
I'm not sure if there is but if there was such a property it wouldn't be considered reliable. A WebException
can be fired for reasons other than HTTP error codes including simple networking errors. Those have no such matching http error code.
Can you give us a bit more info on what you're trying to accomplish with that code. There may be a better way to get the information you need.
Is there a way to initialize the
EntityManager
without a persistence unit defined?
You should define at least one persistence unit in the persistence.xml
deployment descriptor.
Can you give all the required properties to create an
Entitymanager
?
persistence.xml
file:<persistence>
<persistence-unit name="[REQUIRED_PERSISTENCE_UNIT_NAME_GOES_HERE]">
SOME_PROPERTIES
</persistence-unit>
</persistence>
In Java EE environments, the
jta-data-source
andnon-jta-data-source
elements are used to specify the global JNDI name of the JTA and/or non-JTA data source to be used by the persistence provider.
So if your target Application Server supports JTA (JBoss, Websphere, GlassFish), your persistence.xml
looks like:
<persistence>
<persistence-unit name="[REQUIRED_PERSISTENCE_UNIT_NAME_GOES_HERE]">
<!--GLOBAL_JNDI_GOES_HERE-->
<jta-data-source>jdbc/myDS</jta-data-source>
</persistence-unit>
</persistence>
If your target Application Server does not support JTA (Tomcat), your persistence.xml
looks like:
<persistence>
<persistence-unit name="[REQUIRED_PERSISTENCE_UNIT_NAME_GOES_HERE]">
<!--GLOBAL_JNDI_GOES_HERE-->
<non-jta-data-source>jdbc/myDS</non-jta-data-source>
</persistence-unit>
</persistence>
If your data source is not bound to a global JNDI (for instance, outside a Java EE container), so you would usually define JPA provider, driver, url, user and password properties. But property name depends on the JPA provider. So, for Hibernate as JPA provider, your persistence.xml
file will looks like:
<persistence>
<persistence-unit name="[REQUIRED_PERSISTENCE_UNIT_NAME_GOES_HERE]">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<class>br.com.persistence.SomeClass</class>
<properties>
<property name="hibernate.connection.driver_class" value="org.apache.derby.jdbc.ClientDriver"/>
<property name="hibernate.connection.url" value="jdbc:derby://localhost:1527/EmpServDB;create=true"/>
<property name="hibernate.connection.username" value="APP"/>
<property name="hibernate.connection.password" value="APP"/>
</properties>
</persistence-unit>
</persistence>
Transaction Type Attribute
In general, in Java EE environments, a transaction-type of
RESOURCE_LOCAL
assumes that a non-JTA datasource will be provided. In a Java EE environment, if this element is not specified, the default is JTA. In a Java SE environment, if this element is not specified, a default ofRESOURCE_LOCAL
may be assumed.
I need to create the
EntityManager
from the user's specified values at runtime
So use this:
Map addedOrOverridenProperties = new HashMap();
// Let's suppose we are using Hibernate as JPA provider
addedOrOverridenProperties.put("hibernate.show_sql", true);
Persistence.createEntityManagerFactory(<PERSISTENCE_UNIT_NAME_GOES_HERE>, addedOrOverridenProperties);
CAST uses ANSI standard. In case of portability, this will work on other platforms. CONVERT is specific to sql server. But is very strong function. You can specify different styles for dates
The hidden input element trick still appears to work (Chrome 43) to prevent autofill, but one thing to keep in mind is that Chrome will attempt to autofill based on the placeholder tag. You need to match the hidden input element's placeholder to that of the input you're trying to disable.
In my case, I had a field with a placeholder text of 'City or Zip' which I was using with Google Place Autocomplete. It appeared that it was attempting to autofill as if it were part of an address form. The trick didn't work until I put the same placeholder on the hidden element as on the real input:
<input style="display:none;" type="text" placeholder="City or Zip" />
<input autocomplete="off" type="text" placeholder="City or Zip" />
Your approach is good but the problem is that you use "*" instead enlisting fields names. If you put all the columns names excep primary key your script will work like charm on one or many records.
INSERT INTO invoices (iv.field_name, iv.field_name,iv.field_name
) SELECT iv.field_name, iv.field_name,iv.field_name FROM invoices AS iv
WHERE iv.ID=XXXXX
Try to clear cache in android studio by File-> Invalidate cache -> invalidate after invalidating build-> clean project Then you can able to build the project
I spent a while trying to do the same thing, trying to subtract the hours:minutes
from datetime
- here's how I did it:
convert( varchar, cast((RouteMileage / @average_speed) as integer))+ ':' + convert( varchar, cast((((RouteMileage / @average_speed) - cast((RouteMileage / @average_speed) as integer)) * 60) as integer)) As TravelTime,
dateadd( n, -60 * CAST( (RouteMileage / @average_speed) AS DECIMAL(7,2)), @entry_date) As DepartureTime
DeliveryDate TravelTime DepartureTime
2012-06-02 12:00:00.000 25:49 2012-06-01 10:11:00.000
Yes, you can use numpy
for that.
import numpy as np
a = arange(3,dtype=float)
a[0] = np.nan
a[1] = np.inf
a[2] = -np.inf
a # is now [nan,inf,-inf]
np.isnan(a[0]) # True
np.isinf(a[1]) # True
np.isinf(a[2]) # True
In your package.json change the devkit builder.
"@angular-devkit/build-angular": "^0.800.1",
to
"@angular-devkit/build-angular": "^0.10.0",
it works for me.
good luck.
Despite thinking it is "patently false", what you say "seems to be a belief" is actually correct. The Mozilla documentation for window.close says
This method is only allowed to be called for windows that were opened by a script using the window.open method. If the window was not opened by a script, the following error appears in the JavaScript Console: Scripts may not close windows that were not opened by script
You say that it is "supposed to still do it" but I don't think you'll find any reference which supports that, maybe you've misremembered something?
In case you don't want (or have) a running container, you can call your script directly with the run
command.
Remove the iterative tty -i -t
arguments and use this:
$ docker run ubuntu:bionic /bin/bash /path/to/script.sh
This will (didn't test) also work for other scripts:
$ docker run ubuntu:bionic /usr/bin/python /path/to/script.py
You can try it out http://api.jquery.com/mouseover/ on the jQuery doc page. It's a nice little, interactive demo that makes it very clear and you can actually see for yourself.
In short, you'll notice that a mouse over event occurs on an element when you are over it - coming from either its child OR parent element, but a mouse enter event only occurs when the mouse moves from the parent element to the element.
If your login is working without installing facebook app and not working when facebook app is installed due to error "hash key has not match" then do following steps
1 ) Launch your app and try to log in with facebook. A dialog will open and tell you: "the key has not been found in the facebook developer console and also show the hash key.
2 ) Note down that hash key.
3 ) Put it into your facebook developer console where you first generated your api key and remove the hash key with new and save. Now you are done. Anyone that downloads your app, published with earlier used keystore can log into facebook.
It is considered bad practice to invoke the actual generator (e.g. via make
) if using CMake. It is highly recommended to do it like this:
Configure phase:
cmake -Hfoo -B_builds/foo/debug -G"Unix Makefiles" -DCMAKE_BUILD_TYPE=Debug -DCMAKE_DEBUG_POSTFIX=d -DCMAKE_INSTALL_PREFIX=/usr
Build and Install phases
cmake --build _builds/foo/debug --config Debug --target install
When following this approach, the generator can be easily switched (e.g. -GNinja
for Ninja) without having to remember any generator-specific commands.
@nobar's answer helpfully shows how to use tab completion to list a makefile's targets.
This works great for platforms that provide this functionality by default (e.g., Debian, Fedora).
On other platforms (e.g., Ubuntu) you must explicitly load this functionality, as implied by @hek2mgl's answer:
. /etc/bash_completion
installs several tab-completion functions, including the one for make
make
:
. /usr/share/bash-completion/completions/make
_complete_make() { COMPREPLY=($(compgen -W "$(make -pRrq : 2>/dev/null | awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($1 !~ "^[#.]") {print $1}}' | egrep -v '^[^[:alnum:]]' | sort | xargs)" -- "${COMP_WORDS[$COMP_CWORD]}")); }
complete -F _complete_make make
-f <file>
.Try the following:
print "First is: %f" % (first)
print "Second is: %f" % (second)
I am unsure what answer is. But apart from that, this will be:
print "DONE: %f DIVIDED BY %f EQUALS %f, SWEET MATH BRO!" % (first, second, ans)
There's a lot of text on Format String Specifiers. You can google it and get a list of specifiers. One thing I forgot to note:
If you try this:
print "First is: %s" % (first)
It converts the float value in first to a string. So that would work as well.
C++11 added alias declarations, which are generalization of typedef
, allowing templates:
template <size_t N>
using Vector = Matrix<N, 1>;
The type Vector<3>
is equivalent to Matrix<3, 1>
.
In C++03, the closest approximation was:
template <size_t N>
struct Vector
{
typedef Matrix<N, 1> type;
};
Here, the type Vector<3>::type
is equivalent to Matrix<3, 1>
.
in angular2 2.1.1 I was not able to catch the exception using the (data),(error) pattern, so I implemented it using .catch(...).
It's nice because it can be used with all other Observable chained methods like .retry .map etc.
import {Observable} from 'rxjs/Rx';
Http
.put(...)
.catch(err => {
notify('UI error handling');
return Observable.throw(err); // observable needs to be returned or exception raised
})
.subscribe(data => ...) // handle success
from documentation:
Returns
(Observable): An observable sequence containing elements from consecutive source sequences until a source sequence terminates successfully.
When magento mode is default it showws such error Change magento mode to developer with
php bin/magento deploy:mode:set developer
then check your error on your browser and resolve that
An easy way to upgrade all Perl packages (CPAN modules) is the following way:
cpan upgrade /(.*)/
cpan will recognize the regular expression like this and will update/upgrade all packages installed.
When you install third-party extensions you need to make sure that all the compilation parameters match:
Common glitches includes:
php.ini
file (that's typical with bundles); the right path is shown in phpinfo()
.Not being able to see the startup errors; those should show up in Apache logs, but you can also use the command line to diagnose it, e.g.:
php -d display_startup_errors=1 -d error_reporting=-1 -d display_errors -c "C:\Path\To\php.ini" -m
If everything's right you should see sqlsrv
in the command output and/or phpinfo()
(depending on what SAPI you're configuring):
[PHP Modules]
bcmath
calendar
Core
[...]
SPL
sqlsrv
standard
[...]
I ended up with the following:
set input=AAA BBB CCC DDD EEE FFF
set nth=4
for /F "tokens=%nth% delims= " %%a in ("%input%") do set nthstring=%%a
echo %nthstring%
With this you can parameterize the input and index. Make sure to put this code in a bat file.
Also good analogy can be with C# if you familiar with. Basically C# Select
similar to java map
and C# SelectMany
java flatMap
. Same applies to Kotlin for collections.
I ran into this while building for Tests. Build to Run works fine. Xcode 7/Swift 2 didn't like the way a variable was initialized. This code ran fine in Xcode 6.4. Here's the line that caused the seg fault:
var lineWidth: CGFloat = (UIScreen.mainScreen().scale == 1.0) ? 1.0 : 0.5
Changing it to this solved the problem:
var lineWidth: CGFloat {
return (UIScreen.mainScreen().scale == 1.0) ? 1.0 : 0.5
}
I was looking for an ExecutorService that can interrupt all timed out Runnables executed by it, but found none. After a few hours I created one as below. This class can be modified to enhance robustness.
public class TimedExecutorService extends ThreadPoolExecutor {
long timeout;
public TimedExecutorService(int numThreads, long timeout, TimeUnit unit) {
super(numThreads, numThreads, 0L, TimeUnit.MILLISECONDS, new ArrayBlockingQueue<Runnable>(numThreads + 1));
this.timeout = unit.toMillis(timeout);
}
@Override
protected void beforeExecute(Thread thread, Runnable runnable) {
Thread interruptionThread = new Thread(new Runnable() {
@Override
public void run() {
try {
// Wait until timeout and interrupt this thread
Thread.sleep(timeout);
System.out.println("The runnable times out.");
thread.interrupt();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
interruptionThread.start();
}
}
Usage:
public static void main(String[] args) {
Runnable abcdRunnable = new Runnable() {
@Override
public void run() {
System.out.println("abcdRunnable started");
try {
Thread.sleep(20000);
} catch (InterruptedException e) {
// logger.info("The runnable times out.");
}
System.out.println("abcdRunnable ended");
}
};
Runnable xyzwRunnable = new Runnable() {
@Override
public void run() {
System.out.println("xyzwRunnable started");
try {
Thread.sleep(20000);
} catch (InterruptedException e) {
// logger.info("The runnable times out.");
}
System.out.println("xyzwRunnable ended");
}
};
int numThreads = 2, timeout = 5;
ExecutorService timedExecutor = new TimedExecutorService(numThreads, timeout, TimeUnit.SECONDS);
timedExecutor.execute(abcdRunnable);
timedExecutor.execute(xyzwRunnable);
timedExecutor.shutdown();
}
@Context ServletContext ctx;
@Context private HttpServletResponse response;
@GET
@Produces(MediaType.APPLICATION_OCTET_STREAM)
@Path("/download/{filename}")
public StreamingOutput download(@PathParam("filename") String fileName) throws Exception {
final File file = new File(ctx.getInitParameter("file_save_directory") + "/", fileName);
response.setHeader("Content-Length", String.valueOf(file.length()));
response.setHeader("Content-Disposition", "attachment; filename=\""+ file.getName() + "\"");
return new StreamingOutput() {
@Override
public void write(OutputStream output) throws IOException,
WebApplicationException {
Utils.writeBuffer(new BufferedInputStream(new FileInputStream(file)), new BufferedOutputStream(output));
}
};
}
You can use pad for this case:
ax.set_title("whatever", pad=20)
Let's say for instance you want to get a list of all your customers:
var customers = context.Customers.ToList();
And let's assume that each Customer
object has a reference to its set of Orders
, and that each Order
has references to LineItems
which may also reference a Product
.
As you can see, selecting a top-level object with many related entities could result in a query that needs to pull in data from many sources. As a performance measure, Include()
allows you to indicate which related entities should be read from the database as part of the same query.
Using the same example, this might bring in all of the related order headers, but none of the other records:
var customersWithOrderDetail = context.Customers.Include("Orders").ToList();
As a final point since you asked for SQL, the first statement without Include()
could generate a simple statement:
SELECT * FROM Customers;
The final statement which calls Include("Orders")
may look like this:
SELECT *
FROM Customers JOIN Orders ON Customers.Id = Orders.CustomerId;
To change the font size, you don't need to know a lot of html for this. Open the html output with notepad ++. Control F search for "font-size". You should see a section with font sizes for the headers (h1, h2, h3,...).
Add the following somewhere in this section.
body {
font-size: 16px;
}
The font size above is 16 pt font. You can change the number to whatever you want.
just use bash
while read -r line
do
case "$line" in
*MYSQL_ROLE=master*)
echo "do your stuff";;
*) echo "doesn't exist";;
esac
done <"/etc/aws/hosts.conf"
Point your JAVA_HOME
variable to C:\Program Files\Java\jdk1.8.0_xx\
where "xx" is the update number (make sure this matches your actual directory name). Do not include bin\javaw.exe
in the pathname.
NOTE: You can access the Environment Variables GUI from the CLI by entering rundll32 sysdm.cpl,EditEnvironmentVariables
. Be sure to put the 'JAVA_HOME' path variable in the System variables
rather than the user variables. If the path variable is in User
the Android Studio will not find the path.
Use a duplicated double quote.
@"this ""word"" is escaped";
outputs:
this "word" is escaped
Drag a tooltip control from the toolbox onto your form. You don't really need to give it any properties other than a name. Then, in the properties of the control you wish to have a tooltip on, look for a new property with the name of the tooltip control you just added. It will by default give you a tooltip when the cursor hovers the control.
I have used this URL to obtain multiple currency market quotes.
http://finance.yahoo.com/d/quotes.csv?e=.csv&f=c4l1&s=USD=X,CAD=X,EUR=X
"USD",1.0000
"CAD",1.2458
"EUR",0.8396
They can be parsed in PHP like this:
$symbols = ['USD=X', 'CAD=X', 'EUR=X'];
$url = "http://finance.yahoo.com/d/quotes.csv?e=.csv&f=c4l1&s=".join($symbols, ',');
$quote = array_map( 'str_getcsv', file($url) );
foreach ($quote as $key => $symb) {
$symbol = $quote[$key][0];
$value = $quote[$key][1];
}
The file can be loaded and used like this:
#!/usr/bin/env python
import ConfigParser
import io
# Load the configuration file
with open("config.yml") as f:
sample_config = f.read()
config = ConfigParser.RawConfigParser(allow_no_value=True)
config.readfp(io.BytesIO(sample_config))
# List all contents
print("List all contents")
for section in config.sections():
print("Section: %s" % section)
for options in config.options(section):
print("x %s:::%s:::%s" % (options,
config.get(section, options),
str(type(options))))
# Print some contents
print("\nPrint some contents")
print(config.get('other', 'use_anonymous')) # Just get the value
print(config.getboolean('other', 'use_anonymous')) # You know the datatype?
which outputs
List all contents
Section: mysql
x host:::localhost:::<type 'str'>
x user:::root:::<type 'str'>
x passwd:::my secret password:::<type 'str'>
x db:::write-math:::<type 'str'>
Section: other
x preprocessing_queue:::["preprocessing.scale_and_center",
"preprocessing.dot_reduction",
"preprocessing.connect_lines"]:::<type 'str'>
x use_anonymous:::yes:::<type 'str'>
Print some contents
yes
True
As you can see, you can use a standard data format that is easy to read and write. Methods like getboolean and getint allow you to get the datatype instead of a simple string.
Writing configuration
import os
configfile_name = "config.yaml"
# Check if there is already a configurtion file
if not os.path.isfile(configfile_name):
# Create the configuration file as it doesn't exist yet
cfgfile = open(configfile_name, 'w')
# Add content to the file
Config = ConfigParser.ConfigParser()
Config.add_section('mysql')
Config.set('mysql', 'host', 'localhost')
Config.set('mysql', 'user', 'root')
Config.set('mysql', 'passwd', 'my secret password')
Config.set('mysql', 'db', 'write-math')
Config.add_section('other')
Config.set('other',
'preprocessing_queue',
['preprocessing.scale_and_center',
'preprocessing.dot_reduction',
'preprocessing.connect_lines'])
Config.set('other', 'use_anonymous', True)
Config.write(cfgfile)
cfgfile.close()
results in
[mysql]
host = localhost
user = root
passwd = my secret password
db = write-math
[other]
preprocessing_queue = ['preprocessing.scale_and_center', 'preprocessing.dot_reduction', 'preprocessing.connect_lines']
use_anonymous = True
Seems not to be used at all for configuration files by the Python community. However, parsing / writing XML is easy and there are plenty of possibilities to do so with Python. One is BeautifulSoup:
from BeautifulSoup import BeautifulSoup
with open("config.xml") as f:
content = f.read()
y = BeautifulSoup(content)
print(y.mysql.host.contents[0])
for tag in y.other.preprocessing_queue:
print(tag)
where the config.xml might look like this
<config>
<mysql>
<host>localhost</host>
<user>root</user>
<passwd>my secret password</passwd>
<db>write-math</db>
</mysql>
<other>
<preprocessing_queue>
<li>preprocessing.scale_and_center</li>
<li>preprocessing.dot_reduction</li>
<li>preprocessing.connect_lines</li>
</preprocessing_queue>
<use_anonymous value="true" />
</other>
</config>
Here are the steps to pull a specific or any branch,
1.clone the master(you need to provide username and password)
git clone <url>
2. the above command will clone the repository and you will be master branch now
git checkout <branch which is present in the remote repository(origin)>
3. The above command will checkout to the branch you want to pull and will be set to automatically track that branch
4.If for some reason it does not work like that, after checking out to that branch in your local system, just run the below command
git pull origin <branch>
Your approach is decent for a folder that only contains files, but if you are looking for a scenario that also contains subfolders then recursion is needed
Also you should capture the return value of the return to make sure you are allowed to delete the file
and include
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
in your manifest
void DeleteRecursive(File dir)
{
Log.d("DeleteRecursive", "DELETEPREVIOUS TOP" + dir.getPath());
if (dir.isDirectory())
{
String[] children = dir.list();
for (int i = 0; i < children.length; i++)
{
File temp = new File(dir, children[i]);
if (temp.isDirectory())
{
Log.d("DeleteRecursive", "Recursive Call" + temp.getPath());
DeleteRecursive(temp);
}
else
{
Log.d("DeleteRecursive", "Delete File" + temp.getPath());
boolean b = temp.delete();
if (b == false)
{
Log.d("DeleteRecursive", "DELETE FAIL");
}
}
}
}
dir.delete();
}
Short answer:
:%s/string-to-be-searched//gn
For learning:
There are 3 modes in VI editor as below
:
you are entering from Command
to Command-line
mode. Now, whatever you write after :
is on CLI(Command Line Interface)%s
specifies all lines. Specifying the range as %
means do substitution in the entire file. Syntax for all occurrences substitution is :%s/old-text/new-text/g
g
specifies all occurrences in the line. With the g
flag , you can make the whole line to be substituted. If this g
flag is not used then only first occurrence in the line only will be substituted.n
specifies to output number of occurrences //
double slash represents omission of replacement text
. Because we just want to find.Once got the number of occurrences, you can Press N
Key to see occurrences one-by-one.
For finding and counting in particular range of line number 1 to 10:
:1,10s/hello//gn
%
for whole file is repleaced by ,
separated line numbers. For finding and replacing in particular range of line number 1 to 10:
:1,10s/helo/hello/gn
I have already replied to this question in an answer to Stack Overflow question Trouble using Google sign-in button in emulator. It only works for Android 4.2.2, but lets you use the "Intel Atom (x86)" in AVD.
I think that it is easy to make it work for other versions of Android. Just find the correct files.
For ExpressJs router:
router.post('/login', async(req, res) => {
return res.send({redirect: '/yoururl'});
})
Client-side:
success: function (response) {
if (response.redirect) {
window.location = response.redirect
}
},
The solution depends on the answer to the question - are all the parameters going to be the same type and if so will each be treated the same?
If the parameters are not the same type or more importantly are not going to be treated the same then you should use method overloading:
public class MyClass
{
public void doSomething(int i)
{
...
}
public void doSomething(int i, String s)
{
...
}
public void doSomething(int i, String s, boolean b)
{
...
}
}
If however each parameter is the same type and will be treated in the same way then you can use the variable args feature in Java:
public MyClass
{
public void doSomething(int... integers)
{
for (int i : integers)
{
...
}
}
}
Obviously when using variable args you can access each arg by its index but I would advise against this as in most cases it hints at a problem in your design. Likewise, if you find yourself doing type checks as you iterate over the arguments then your design needs a review.
My 2 cent. Same but different...
<script>
dosomething("blaha", function(){
alert("Yay just like jQuery callbacks!");
});
function dosomething(damsg, callback){
alert(damsg);
if(typeof callback == "function")
callback();
}
</script>
If this is your own collection class rather than a built in one, you need to override its toString method. Eclipse calls that function for any objects for which it does not have a hard-wired formatting.
In Java (version 6+), you can also do:
Desktop d = Desktop.getDesktop();
d.browse(uri);
Though this won't work on all Linuxes. At the time of writing, Gnome is supported, KDE isn't.
And just for the logs, I did this using Moment.js library, which I was using for formatting anyway.
moment.utc(1234567890000).local()
>Fri Feb 13 2009 19:01:30 GMT-0430 (VET)
Did you took a look at this? http://developer.yahoo.com/yui/history/
The c# function, as expressed by Kyle Rozendo:
string DecimalPlaceNoRounding(double d, int decimalPlaces = 2)
{
d = d * Math.Pow(10, decimalPlaces);
d = Math.Truncate(d);
d = d / Math.Pow(10, decimalPlaces);
return string.Format("{0:N" + Math.Abs(decimalPlaces) + "}", d);
}
[Personal Option] Avoiding using $scope, based on John Papa Angular Style Guide
so my idea is take advantage of the current model:
(function(){_x000D_
'use strict';_x000D_
_x000D_
var app = angular.module('way', [])_x000D_
app.controller('Decision', Decision);_x000D_
_x000D_
Decision.$inject = []; _x000D_
_x000D_
function Decision(){_x000D_
var vm = this;_x000D_
vm.checkItOut = _register;_x000D_
_x000D_
function _register(newOption){_x000D_
console.log('should I stay or should I go');_x000D_
console.log(newOption); _x000D_
}_x000D_
}_x000D_
_x000D_
_x000D_
_x000D_
})();
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>_x000D_
<div ng-app="way">_x000D_
<div ng-controller="Decision as vm">_x000D_
<form name="myCheckboxTest" ng-submit="vm.checkItOut(decision)">_x000D_
<label class="radio-inline">_x000D_
<input type="radio" name="option" ng-model="decision.myWay"_x000D_
ng-value="false" ng-checked="!decision.myWay"> Should I stay?_x000D_
</label>_x000D_
<label class="radio-inline">_x000D_
<input type="radio" name="option" ng-value="true"_x000D_
ng-model="decision.myWay" > Should I go?_x000D_
</label>_x000D_
_x000D_
</form>_x000D_
</div>_x000D_
_x000D_
</div>
_x000D_
I hope I could help ;)
The accepted answer appears to be targetted for C++, so I thought I'd add an answer that pertains to C, and this differs in a few ways. There were also some changes made between ISO/IEC 9899:1989 (C90) and ISO/IEC 9899:1999 (C99).
main()
should be declared as either:
int main(void)
int main(int argc, char **argv)
Or equivalent. For example, int main(int argc, char *argv[])
is equivalent to the second one. In C90, the int
return type can be omitted as it is a default, but in C99 and newer, the int
return type may not be omitted.
If an implementation permits it, main()
can be declared in other ways (e.g., int main(int argc, char *argv[], char *envp[])
), but this makes the program implementation defined, and no longer strictly conforming.
The standard defines 3 values for returning that are strictly conforming (that is, does not rely on implementation defined behaviour): 0
and EXIT_SUCCESS
for a successful termination, and EXIT_FAILURE
for an unsuccessful termination. Any other values are non-standard and implementation defined. In C90, main()
must have an explicit return
statement at the end to avoid undefined behaviour. In C99 and newer, you may omit the return statement from main()
. If you do, and main()
finished, there is an implicit return 0
.
Finally, there is nothing wrong from a standards point of view with calling main()
recursively from a C program.
Use Range("A1").Text
instead of .Value
post comment edit:
Why?
Because the .Text
property of Range object returns what is literally visible in the spreadsheet, so if you cell displays for example i100l:25he*_92
then <- Text
will return exactly what it in the cell including any formatting.
The .Value
and .Value2
properties return what's stored in the cell under the hood excluding formatting. Specially .Value2
for date types, it will return the decimal representation.
If you want to dig deeper into the meaning and performance, I just found this article
which seems like a good guide
another edit
Here you go @Santosh
type in (MANUALLY) the values from the DEFAULT (col A) to other columns
Do not format column A at all
Format column B as Text
Format column C as Date[dd/mm/yyyy]
Format column D as Percentage
now,
paste this code in a module
Sub main()
Dim ws As Worksheet, i&, j&
Set ws = Sheets(1)
For i = 3 To 7
For j = 1 To 4
Debug.Print _
"row " & i & vbTab & vbTab & _
Cells(i, j).Text & vbTab & _
Cells(i, j).Value & vbTab & _
Cells(i, j).Value2
Next j
Next i
End Sub
and Analyse
the output! Its really easy and there isn't much more i can do to help :)
.TEXT .VALUE .VALUE2
row 3 hello hello hello
row 3 hello hello hello
row 3 hello hello hello
row 3 hello hello hello
row 4 1 1 1
row 4 1 1 1
row 4 01/01/1900 31/12/1899 1
row 4 1.00% 0.01 0.01
row 5 helo1$$ helo1$$ helo1$$
row 5 helo1$$ helo1$$ helo1$$
row 5 helo1$$ helo1$$ helo1$$
row 5 helo1$$ helo1$$ helo1$$
row 6 63 63 63
row 6 =7*9 =7*9 =7*9
row 6 03/03/1900 03/03/1900 63
row 6 6300.00% 63 63
row 7 29/05/2013 29/05/2013 41423
row 7 29/05/2013 29/05/2013 29/05/2013
row 7 29/05/2013 29/05/2013 41423
row 7 29/05/2013% 29/05/2013% 29/05/2013%
Use an XPath of the link by using Selenium IDE to click the element:
driver.findelement(By.xpath("//a[contains(@title, \"Plastic Spiral Bind\")]")).click();
var pinIcon = new google.maps.MarkerImage(
"http://chart.apis.google.com/chart?chst=d_map_pin_letter&chld=%E2%80%A2|00D900",
null, /* size is determined at runtime */
null, /* origin is 0,0 */
null, /* anchor is bottom center of the scaled image */
new google.maps.Size(12, 18)
);
$(document).ready(my_function);
Or
$(document).ready(function () {
// Function code here.
});
Or the shorter but less readable variant:
$(my_function);
All of these will cause my_function to be called after the DOM loads.
See the ready event documentation for more details.
Binds a function to be executed whenever the DOM is ready to be traversed and manipulated.
Edit:
To simulate a click, use the click() method without arguments:
$('#button').click();
From the docs:
Triggers the click event of each matched element. Causes all of the functions that have been bound to that click event to be executed.
To put it all together, the following code simulates a click when the document finishes loading:
$(function () {
$('#button').click();
});
Also worth noting that if you have two factor authentication enabled, you'll need to setup an application specific password to use in place of your email account's password.
You can generate an application specific password by following these instructions: https://support.google.com/accounts/answer/185833
Then set $mail->Password
to your application specific password.
You can use
display: flex;
CSS property, as mentioned before by @Ayan, but I've created a working example: https://jsfiddle.net/d2kjxd51/
You are trying to call DeckOfCards::shuffle
with a deckOfCards
parameter:
deckOfCards cardDeck; // create DeckOfCards object
cardDeck.shuffle(cardDeck); // shuffle the cards in the deck
But the method takes a vector<Card>&
:
void deckOfCards::shuffle(vector<Card>& deck)
The compiler error messages are quite clear on this. I'll paraphrase the compiler as it talks to you.
Error:
[Error] no matching function for call to 'deckOfCards::shuffle(deckOfCards&)'
Paraphrased:
Hey, pal. You're trying to call a function called
shuffle
which apparently takes a single parameter of type reference-to-deckOfCards
, but there is no such function.
Error:
[Note] candidate is:
In file included from main.cpp
[Note] void deckOfCards::shuffle(std::vector&)
Paraphrased:
I mean, maybe you meant this other function called
shuffle
, but that one takes a reference-tovector<something>
.
Error:
[Note] no known conversion for argument 1 from 'deckOfCards' to 'std::vector&'
Which I'd be happy to call if I knew how to convert from a
deckOfCards
to avector
; but I don't. So I won't.
I had the same issue. My solution was OK but suddenly when I opened the solution I found out the tests are gone.
Finally I downgraded Microsoft.VisualStudio.TestPlatform.TestFramework
and Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions
packages to a very old version (using NuGet manager) and test methods showed up. Then I upgraded to latest version and still there were there.
So just downgrade and upgrade packages.
Maybe these
JArgs command line option parsing suite for Java - this tiny project provides a convenient, compact, pre-packaged and comprehensively documented suite of command line option parsers for the use of Java programmers. Initially, parsing compatible with GNU-style 'getopt' is provided.
ritopt, The Ultimate Options Parser for Java - Although, several command line option standards have been preposed, ritopt follows the conventions prescribed in the opt package.
Since PowerShell doesn't support "-Credential" usage via many of the cmdlets (very annoying), and mapping a network drive via WMI proved to be very unreliable in PS, I found pre-caching the user credentials via a net use command to work quite well:
# cache credentials for our network path
net use \\server\C$ $password /USER:$username
Any operation that uses \\server\C$ in the path seems to work using the *-item cmdlets.
You can also delete the share when you're done:
net use \\server\C$ /delete
You can use this solution. (Use nuget package) The source code is available on : Github: https://github.com/michelcedric/UserImpersonation
More detail https://michelcedric.wordpress.com/2015/09/03/usurpation-didentite-dun-user-c-user-impersonation/
In chrome, you can apply this css if you need to apply ellipsis on multiple lines.
You can also add width in your css to specify element of certain width:
.multi-line-ellipsis {_x000D_
overflow: hidden;_x000D_
display: -webkit-box;_x000D_
-webkit-line-clamp: 3;_x000D_
-webkit-box-orient: vertical;_x000D_
}
_x000D_
<p class="multi-line-ellipsis">Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
_x000D_
As mentioned, display:inline is probably what you want. Some browsers also support inline-blocks.
rate_text.textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable, String oldValue, String newValue) {
String s="";
for(char c : newValue.toCharArray()){
if(((int)c >= 48 && (int)c <= 57 || (int)c == 46)){
s+=c;
}
}
rate_text.setText(s);
}
});
This works fine as it allows you to enter only integer value and decimal value (having ASCII code 46).
I had a situation where I needed to update or insert on a table according to two fields (both foreign keys) on which I couldn't set a UNIQUE constraint (so INSERT ... ON DUPLICATE KEY UPDATE won't work). Here's what I ended up using:
replace into last_recogs (id, hasher_id, hash_id, last_recog)
select l.* from
(select id, hasher_id, hash_id, [new_value] from last_recogs
where hasher_id in (select id from hashers where name=[hasher_name])
and hash_id in (select id from hashes where name=[hash_name])
union
select 0, m.id, h.id, [new_value]
from hashers m cross join hashes h
where m.name=[hasher_name]
and h.name=[hash_name]) l
limit 1;
This example is cribbed from one of my databases, with the input parameters (two names and a number) replaced with [hasher_name], [hash_name], and [new_value]. The nested SELECT...LIMIT 1 pulls the first of either the existing record or a new record (last_recogs.id is an autoincrement primary key) and uses that as the value input into the REPLACE INTO.
What is meta_key
? Strip out all of the meta_value
conditionals, reduce, and you end up with this:
SELECT
*
FROM
meta_data
WHERE
(
(meta_key = 'lat')
)
AND
(
(meta_key = 'long')
)
GROUP BY
item_id
Since meta_key
can never simultaneously equal two different values, no results will be returned.
Based on comments throughout this question and answers so far, it sounds like you're looking for something more along the lines of this:
SELECT
*
FROM
meta_data
WHERE
(
(meta_key = 'lat')
AND
(
(meta_value >= '60.23457047672217')
OR
(meta_value <= '60.23457047672217')
)
)
OR
(
(meta_key = 'long')
AND
(
(meta_value >= '24.879140853881836')
OR
(meta_value <= '24.879140853881836')
)
)
GROUP BY
item_id
Note the OR
between the top-level conditionals. This is because you want records which are lat
or long
, since no single record will ever be lat
and long
.
I'm still not sure what you're trying to accomplish by the inner conditionals. Any non-null value will match those numbers. So maybe you can elaborate on what you're trying to do there. I'm also not sure about the purpose of the GROUP BY
clause, but that might be outside the context of this question entirely.
There is a great explanation of defaultdicts here: http://ludovf.net/blog/python-collections-defaultdict/
Basically, the parameters int and list are functions that you pass. Remember that Python accepts function names as arguments. int returns 0 by default and list returns an empty list when called with parentheses.
In normal dictionaries, if in your example I try calling d[a]
, I will get an error (KeyError), since only keys m, s, i and p exist and key a has not been initialized. But in a defaultdict, it takes a function name as an argument, when you try to use a key that has not been initialized, it simply calls the function you passed in and assigns its return value as the value of the new key.
POD is the official way to do multi line comments in Perl,
From faq.perl.org[perlfaq7]
The quick-and-dirty way to comment out more than one line of Perl is to surround those lines with Pod directives. You have to put these directives at the beginning of the line and somewhere where Perl expects a new statement (so not in the middle of statements like the # comments). You end the comment with
=cut
, ending the Pod section:
=pod
my $object = NotGonnaHappen->new();
ignored_sub();
$wont_be_assigned = 37;
=cut
The quick-and-dirty method only works well when you don't plan to leave the commented code in the source. If a Pod parser comes along, your multiline comment is going to show up in the Pod translation. A better way hides it from Pod parsers as well.
The
=begin
directive can mark a section for a particular purpose. If the Pod parser doesn't want to handle it, it just ignores it. Label the comments withcomment
. End the comment using=end
with the same label. You still need the=cut
to go back to Perl code from the Pod comment:
=begin comment
my $object = NotGonnaHappen->new();
ignored_sub();
$wont_be_assigned = 37;
=end comment
=cut
I can't imagine that anyone else reading this is a stupid as I was but just in case... I had accidentally removed "laravel/framework": "^5.6" from my composer.json when resolving merge conflicts.
Autofac. https://github.com/autofac/Autofac It is really fast and pretty good. Here is a link with comparisons (made after Ninject fixed a memory leak issue).
http://www.codinginstinct.com/2008/05/ioc-container-benchmark-rerevisted.html
Another way to do this would be to add before adding lines in your output, the following line :
output.writerow(dict(zip(dr.fieldnames, dr.fieldnames)))
The zip would return a list of doublet containing the same value. This list could be used to initiate a dictionary.
After struggling with all available options, I ended up writing a JWT token based SessionStore provider (the session travels inside a cookie, and no backend storage is needed).
http://www.drupalonwindows.com/en/content/token-sessionstate
Advantages:
Using "Database View" like entity a.k.a immutable entity is super easy for this case.
@Entity
@Table(name = "people")
data class Person(
@Id
val id: Long = -1,
val firstName: String = "",
val lastName: String? = null
)
@Entity
@Immutable
@Subselect("""
select
p.id,
concat(p.first_name, ' ', p.last_name) as full_name
from people p
""")
data class PersonMin(
@Id
val id: Long,
val fullName: String,
)
In any repository we can create query function/method just like:
@Query(value = "select p from PersonMin p")
fun findPeopleMinimum(pageable: Pageable): Page<PersonMin>
I just want to mention a thing, there are many tools can do text processing, e.g. sort, cut, split, join, paste, comm, uniq, column, rev, tac, tr, nl, pr, head, tail.....
they are very handy but you have to learn their options etc.
A lazy way (not the best way) to learn text processing might be: only learn grep , sed and awk. with this three tools, you can solve almost 99% of text processing problems and don't need to memorize above different cmds and options. :)
AND, if you 've learned and used the three, you knew the difference. Actually, the difference here means which tool is good at solving what kind of problem.
a more lazy way might be learning a script language (python, perl or ruby) and do every text processing with it.
Use the attribute selector
[id^=product]{property:value}
Use the ToDictionary
method directly.
var result =
// as Jon Skeet pointed out, OrderBy is useless here, I just leave it
// show how to use OrderBy in a LINQ query
myClassCollection.OrderBy(mc => mc.SomePropToSortOn)
.ToDictionary(mc => mc.KeyProp.ToString(),
mc => mc.ValueProp.ToString(),
StringComparer.OrdinalIgnoreCase);