Here's a solution which again is not a CSS only solution. It is similar to avrahamcool's solution in that it uses a few lines of jQuery, but instead of changing heights and moving the header along, all it does is changing the width of tbody
based on how far its parent table
is scrolled along to the right.
An added bonus with this solution is that it works with a semantically valid HTML table.
It works great on all recent browser versions (IE10, Chrome, FF) and that's it, the scrolling functionality breaks on older versions.
But then the fact that you are using a semantically valid HTML table will save the day and ensure the table is still displayed properly, it's only the scrolling functionality that won't work on older browsers.
Here's a jsFiddle for demonstration purposes.
CSS
table {
width: 300px;
overflow-x: scroll;
display: block;
}
thead, tbody {
display: block;
}
tbody {
overflow-y: scroll;
overflow-x: hidden;
height: 140px;
}
td, th {
min-width: 100px;
}
JS
$("table").on("scroll", function () {
$("table > *").width($("table").width() + $("table").scrollLeft());
});
I needed a version which degrades nicely in IE9 (no scrolling, just a normal table). Posting the fiddle here as it is an improved version. All you need to do is set a height on the tr
.
Additional CSS to make this solution degrade nicely in IE9
tr {
height: 25px; /* This could be any value, it just needs to be set. */
}
Here's a jsFiddle demonstrating the nicely degrading in IE9 version of this solution.
Edit: Updated fiddle links to link to a version of the fiddle which contains fixes for issues mentioned in the comments. Just adding a snippet with the latest and greatest version while I'm at it:
$('table').on('scroll', function() {_x000D_
$("table > *").width($("table").width() + $("table").scrollLeft());_x000D_
});
_x000D_
html {_x000D_
font-family: verdana;_x000D_
font-size: 10pt;_x000D_
line-height: 25px;_x000D_
}_x000D_
_x000D_
table {_x000D_
border-collapse: collapse;_x000D_
width: 300px;_x000D_
overflow-x: scroll;_x000D_
display: block;_x000D_
}_x000D_
_x000D_
thead {_x000D_
background-color: #EFEFEF;_x000D_
}_x000D_
_x000D_
thead,_x000D_
tbody {_x000D_
display: block;_x000D_
}_x000D_
_x000D_
tbody {_x000D_
overflow-y: scroll;_x000D_
overflow-x: hidden;_x000D_
height: 140px;_x000D_
}_x000D_
_x000D_
td,_x000D_
th {_x000D_
min-width: 100px;_x000D_
height: 25px;_x000D_
border: dashed 1px lightblue;_x000D_
overflow: hidden;_x000D_
text-overflow: ellipsis;_x000D_
max-width: 100px;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<table>_x000D_
<thead>_x000D_
<tr>_x000D_
<th>Column 1</th>_x000D_
<th>Column 2</th>_x000D_
<th>Column 3</th>_x000D_
<th>Column 4</th>_x000D_
<th>Column 5</th>_x000D_
</tr>_x000D_
</thead>_x000D_
<tbody>_x000D_
<tr>_x000D_
<td>AAAAAAAAAAAAAAAAAAAAAAAAAA</td>_x000D_
<td>Row 1</td>_x000D_
<td>Row 1</td>_x000D_
<td>Row 1</td>_x000D_
<td>Row 1</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 2</td>_x000D_
<td>Row 2</td>_x000D_
<td>Row 2</td>_x000D_
<td>Row 2</td>_x000D_
<td>Row 2</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 3</td>_x000D_
<td>Row 3</td>_x000D_
<td>Row 3</td>_x000D_
<td>Row 3</td>_x000D_
<td>Row 3</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 4</td>_x000D_
<td>Row 4</td>_x000D_
<td>Row 4</td>_x000D_
<td>Row 4</td>_x000D_
<td>Row 4</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 5</td>_x000D_
<td>Row 5</td>_x000D_
<td>Row 5</td>_x000D_
<td>Row 5</td>_x000D_
<td>Row 5</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 6</td>_x000D_
<td>Row 6</td>_x000D_
<td>Row 6</td>_x000D_
<td>Row 6</td>_x000D_
<td>Row 6</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 7</td>_x000D_
<td>Row 7</td>_x000D_
<td>Row 7</td>_x000D_
<td>Row 7</td>_x000D_
<td>Row 7</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 8</td>_x000D_
<td>Row 8</td>_x000D_
<td>Row 8</td>_x000D_
<td>Row 8</td>_x000D_
<td>Row 8</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 9</td>_x000D_
<td>Row 9</td>_x000D_
<td>Row 9</td>_x000D_
<td>Row 9</td>_x000D_
<td>Row 9</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Row 10</td>_x000D_
<td>Row 10</td>_x000D_
<td>Row 10</td>_x000D_
<td>Row 10</td>_x000D_
<td>Row 10</td>_x000D_
</tr>_x000D_
</tbody>_x000D_
</table>
_x000D_
if anyone else need the solution
@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == android.R.id.home) {
onBackPressed();
}
return super.onOptionsItemSelected(item);
}
You can as well use this and upgrade to mysqli_
(stop using mysql_*
extension...)
$result = mysqli_query($conn, "SELECT COUNT(*) AS `count` FROM `Students`");
$row = mysqli_fetch_array($result);
$count = $row['count'];
echo $count;
maybe this can help..
SELECT constraint_name, constraint_type, column_name
from user_constraints natural join user_cons_columns
where table_name = "my_table_name";
Say if you have an application which has similar functionality as that of mine. Where your app is mostly offline and you want to render the Images one after the other. Then below is the approach that worked for me in React Native version 0.60.
const Images = { 'image1': require('./1.png'), 'image2': require('./2.png'), 'image3': require('./3.png') }
import React from 'react'; import { Image, Dimensions } from 'react-native'; import Images from './Index'; const ImageView = ({ index }) => { return ( <Image source={Images['image' + index]} /> ) } export default ImageView;
Now from the component wherever you want to render the Static Images dynamically, just use the ImageView component and pass the index.
< ImageView index={this.qno + 1} />
I think you should casting variable or use Integer
class by call out method doubleValue()
.
Here a method that resolves a relative path from a base path regardless they are in the same or in a different root:
public static String GetRelativePath(String path, String base){
final String SEP = "/";
// if base is not a directory -> return empty
if (!base.endsWith(SEP)){
return "";
}
// check if path is a file -> remove last "/" at the end of the method
boolean isfile = !path.endsWith(SEP);
// get URIs and split them by using the separator
String a = "";
String b = "";
try {
a = new File(base).getCanonicalFile().toURI().getPath();
b = new File(path).getCanonicalFile().toURI().getPath();
} catch (IOException e) {
e.printStackTrace();
}
String[] basePaths = a.split(SEP);
String[] otherPaths = b.split(SEP);
// check common part
int n = 0;
for(; n < basePaths.length && n < otherPaths.length; n ++)
{
if( basePaths[n].equals(otherPaths[n]) == false )
break;
}
// compose the new path
StringBuffer tmp = new StringBuffer("");
for(int m = n; m < basePaths.length; m ++)
tmp.append(".."+SEP);
for(int m = n; m < otherPaths.length; m ++)
{
tmp.append(otherPaths[m]);
tmp.append(SEP);
}
// get path string
String result = tmp.toString();
// remove last "/" if path is a file
if (isfile && result.endsWith(SEP)){
result = result.substring(0,result.length()-1);
}
return result;
}
In order to assign these to variables, be sure not to add spaces in front or after the equals sign:
set filepath=%~dp1
set filename=%~nx1
Then you should have no issues.
Edited on 2014/8/25: Here was where I forked it.
Thanks @anvarik.
Here is the JSFiddle. I forgot where I forked this. But this is a good example showing you the difference between = and @
<div ng-controller="MyCtrl">
<h2>Parent Scope</h2>
<input ng-model="foo"> <i>// Update to see how parent scope interacts with component scope</i>
<br><br>
<!-- attribute-foo binds to a DOM attribute which is always
a string. That is why we are wrapping it in curly braces so
that it can be interpolated. -->
<my-component attribute-foo="{{foo}}" binding-foo="foo"
isolated-expression-foo="updateFoo(newFoo)" >
<h2>Attribute</h2>
<div>
<strong>get:</strong> {{isolatedAttributeFoo}}
</div>
<div>
<strong>set:</strong> <input ng-model="isolatedAttributeFoo">
<i>// This does not update the parent scope.</i>
</div>
<h2>Binding</h2>
<div>
<strong>get:</strong> {{isolatedBindingFoo}}
</div>
<div>
<strong>set:</strong> <input ng-model="isolatedBindingFoo">
<i>// This does update the parent scope.</i>
</div>
<h2>Expression</h2>
<div>
<input ng-model="isolatedFoo">
<button class="btn" ng-click="isolatedExpressionFoo({newFoo:isolatedFoo})">Submit</button>
<i>// And this calls a function on the parent scope.</i>
</div>
</my-component>
</div>
var myModule = angular.module('myModule', [])
.directive('myComponent', function () {
return {
restrict:'E',
scope:{
/* NOTE: Normally I would set my attributes and bindings
to be the same name but I wanted to delineate between
parent and isolated scope. */
isolatedAttributeFoo:'@attributeFoo',
isolatedBindingFoo:'=bindingFoo',
isolatedExpressionFoo:'&'
}
};
})
.controller('MyCtrl', ['$scope', function ($scope) {
$scope.foo = 'Hello!';
$scope.updateFoo = function (newFoo) {
$scope.foo = newFoo;
}
}]);
The lowdown is: There is no solution. Excel 2011/Mac cannot correctly interpret a CSV file containing umlauts and diacritical marks no matter what encoding or hoop jumping you do. I'd be glad to hear someone tell me different!
You should add reference to PresentationCore.dll.
Click on settings in top tool bar;
Click on debugger;
In tree, highlight "gdb/cdb debugger" by clicking it
Click "create configuration"
Click default configuration, a dialogue will appear to the right for "executable path" with a button to the right.
Click on that button and it will bring up the file that codeblocks is installed in. Just keep clicking until you create the path to the gdb.exe (it sort of finds itself).
For intellij users: If you want to make changes in interactive way for past commits, which are not pushed follow below steps in Intellij:
Hope it helps
just do:
type version.txt
and it will be displayed as if you typed:
set /p Build=<version.txt
echo %Build%
This seems to be a common problem. I had to uninstall the latest Connector/NET driver (6.7.4) and install an older version (6.6.5) for it to work. Others report 6.6.6 working for them.
See other topic with more info: MySQL Data Source not appearing in Visual Studio
// Create Customer class as follows:
export default class Customer {}
// Import the class
// no need for .js extension in path cos gets inferred automatically
import Customer from './path/to/Customer';
// or
const Customer = require('./path/to/Customer')
// Use the class
var customer = new Customer();
var name = customer.getName();
I had this problem today using any of concat, append or merge, and I got around it by adding a helper column sequentially numbered and then doing an outer join
helper=1
for i in df1.index:
df1.loc[i,'helper']=helper
helper=helper+1
for i in df2.index:
df2.loc[i,'helper']=helper
helper=helper+1
df1.merge(df2,on='helper',how='outer')
This worked for me while searching for value less than or equal than now:
db.collectionName.find({ "dt": { "$lte" : new Date() + "" } });
The simple way to do it. All you need is to put the decorator method outside the class. You can still use it inside.
def my_decorator(func):
#this is the key line. There's the aditional self parameter
def wrap(self, *params, **kwargs):
# you can use self here as if you were inside the class
return func()
return wrap
class Test(object):
@my_decorator
def bar(self):
pass
Your mistake is looking for range
, which gives you the range
of a vector, for example:
range(c(10, -5, 100))
gives
-5 100
Instead, look at the :
operator to give sequences (with a step size of one):
1:100
or you can use the seq
function to have a bit more control. For example,
##Step size of 2
seq(1, 100, by=2)
or
##length.out: desired length of the sequence
seq(1, 100, length.out=5)
I solved the problem by adding the following lines to the AppSettings section of my web.config file:
<add key="autoFormsAuthentication" value="false" />
<add key="enableSimpleMembership" value="false"/>
My two cents showing how to use the Google Charts API to solve this problem.
Google has a new feature on Android Q: filtered view for external storage. A quick fix for that is to add this code in the AndroidManifest.xml file:
<manifest ... >
<!-- This attribute is "false" by default on apps targeting Android Q. -->
<application android:requestLegacyExternalStorage="true" ... >
...
</application>
</manifest>
You can read more about it here: https://developer.android.com/training/data-storage/compatibility
In response to mrCoders answer using jsperf why not just use the dom node ?
var $foo = $('#foo');
var count = $foo[0].childElementCount
You can try the test here: http://jsperf.com/jquery-child-ele-size/7
This method gets 46,095 op/s while the other methods at best 2000 op/s
Have you looked at the samples provided with EPPlus?
This one shows you how to create a file http://epplus.codeplex.com/wikipage?title=ContentSheetExample
This one shows you how to use it to stream back a file http://epplus.codeplex.com/wikipage?title=WebapplicationExample
This is how we use the package to generate a file.
var newFile = new FileInfo(ExportFileName);
using (ExcelPackage xlPackage = new ExcelPackage(newFile))
{
// do work here
xlPackage.Save();
}
This is what I would use:
numbers = [float(x)/10 for x in range(10)]
rather than:
numbers = [x*0.1 for x in range(10)]
that would return :
[0.0, 0.1, 0.2, 0.30000000000000004, 0.4, 0.5, 0.6000000000000001, 0.7000000000000001, 0.8, 0.9]
hope it helps.
I spent some time looking for the best answer, and I think I have it.
This sql will give you the number of days between two dates as integer
:
SELECT
(EXTRACT(epoch from age('2017-6-15', now())) / 86400)::int
..which, when run today (2017-3-28
), provides me with:
?column?
------------
77
The misconception about the accepted answer:
select age('2010-04-01', '2012-03-05'),
date_part('year',age('2010-04-01', '2012-03-05')),
date_part('month',age('2010-04-01', '2012-03-05')),
date_part('day',age('2010-04-01', '2012-03-05'));
..is that you will get the literal difference between the parts of the date strings, not the amount of time between the two dates.
I.E:
Age(interval)=-1 years -11 mons -4 days;
Years(double precision)=-1;
Months(double precision)=-11;
Days(double precision)=-4;
In java, there are two types of parameters, implicit parameters and explicit parameters. Explicit parameters are the arguments passed into a method. The implicit parameter of a method is the instance that the method is called from. Arguments are simply one of the two types of parameters.
You always don't need a cursor for this. You can do it with a while loop. You should avoid cursors whenever possible. While loop is faster than cursors.
I think it would be better to actually bind your listBoxes to a datasource, since it looks like you are adding the same elements to each listbox. A simple example would be something like this:
private List<String> _weight = new List<string>() { "kilogram", "pound" };
private List<String> _height = new List<string>() { "foot", "inch", "meter" };
public Window1()
{
InitializeComponent();
}
private void Weight_Click(object sender, RoutedEventArgs e)
{
listBox1.ItemsSource = _weight;
listBox2.ItemsSource = _weight;
}
private void Height_Click(object sender, RoutedEventArgs e)
{
listBox1.ItemsSource = _height;
listBox2.ItemsSource = _height;
}
All you have to do is just change the hard coded value in the code provided below
DECLARE @firstDate datetime
DECLARE @secondDate datetime
DECLARE @totalDays INT
SELECT @firstDate = getDate() - 30
SELECT @secondDate = getDate()
DECLARE @index INT
SELECT @index = 0
SELECT @totalDays = datediff(day, @firstDate, @secondDate)
CREATE TABLE #temp
(
ID INT NOT NULL IDENTITY(1,1)
,CommonDate DATETIME NULL
)
WHILE @index < @totalDays
BEGIN
INSERT INTO #temp (CommonDate) VALUES (DATEADD(Day, @index, @firstDate))
SELECT @index = @index + 1
END
SELECT CONVERT(VARCHAR(10), CommonDate, 102) as [Date Between] FROM #temp
DROP TABLE #temp
Here is another way by using UIBezierPath (maybe it's too late ^^) Create a circle and mask UIView with it, as follows:
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 200)];
view.backgroundColor = [UIColor blueColor];
CAShapeLayer *shape = [CAShapeLayer layer];
UIBezierPath *path = [UIBezierPath bezierPathWithArcCenter:view.center radius:(view.bounds.size.width / 2) startAngle:0 endAngle:(2 * M_PI) clockwise:YES];
shape.path = path.CGPath;
view.layer.mask = shape;
Try:
<%= link_to "Add to cart", {:controller => "car", :action => "add_to_cart", :car => car.id }%>
and then in your controller
@car = Car.find(params[:car])
which, will find in your 'cars' table (as with rails pluralization) in your DB a car with id == to car.id
hope it helps! happy coding
more than a year later, but if you see it or anyone does, i could use the points ;D
This worked for me:
<video src="file.mp4" controls style="max-width:100%; height:auto"></video>
On advice from http://for-ref-only.blogspot.de/2012/08/installing-beautifulsoup-for-python-3.html, I used the Windows command prompt with:
C:\Python\Scripts\easy_install c:\Python\BeautifulSoup\beautifulsoup4-4.3.1
where BeautifulSoup\beautifulsoup4-4.3.1 is the downloaded and extracted beautifulsoup4-4.3.1.tar file. It works.
I use this very successfully (without jQuery or any other framework).
function copyToClp(txt){
txt = document.createTextNode(txt);
var m = document;
var w = window;
var b = m.body;
b.appendChild(txt);
if (b.createTextRange) {
var d = b.createTextRange();
d.moveToElementText(txt);
d.select();
m.execCommand('copy');
}
else {
var d = m.createRange();
var g = w.getSelection;
d.selectNodeContents(txt);
g().removeAllRanges();
g().addRange(d);
m.execCommand('copy');
g().removeAllRanges();
}
txt.remove();
}
Warning
Tabs are converted to spaces (at least in Chrome).
Normally this error occurs when it try to load the previous state. This happened in Mac Virtual box. I tried after restarting the virtual box but again also i've encountered this issue. Right Click on the operating system in the virtual box and then Click on the Discard Saved State.. .This fixed the issue.
This solved it for me
AppRegistry.registerComponent('main', () => App);
So my index.js
file
import { AppRegistry } from 'react-native';
import App from './App';
AppRegistry.registerComponent('main', () => App);
And my package.json
file:
"dependencies": {
"react": "^16.13.1",
"react-dom": "~16.9.0",
"react-native": "~0.61.5"
},
With Sass (SCSS syntax) you can do this with a mixin:
// Center horizontal mixin
@mixin center-horizontally {
position: absolute;
left: 50%;
transform: translate(-50%, -50%);
}
// Center horizontal class
.center-horizontally {
@include center-horizontally;
}
In an HTML tag:
<div class="center-horizontally">
I'm centered!
</div>
Remember to add position: relative;
to the parent HTML element.
Using flex, you can do this:
@mixin center-horizontally {
display: flex;
justify-content: center;
}
// Center horizontal class
.center-horizontally {
@include center-horizontally;
}
In an HTML tag:
<div class="center-horizontally">
<div>I'm centered!</div>
</div>
Try this CodePen!
Choose Database | Set Datasource Location... Select the database node (yellow-ish cylinder) of the current connection, then select the database node of the desired connection (you may need to authenticate), then click Update.
You will need to do this for the 'Subreports' nodes as well.
FYI, you can also do individual tables by selecting each individually, then choosing Update.
Try doing this, there's no special character to concatenate in bash :
mystring="${arg1}12${arg2}endoffile"
If you don't put brackets, you will ask bash to concatenate $arg112 + $argendoffile
(I guess that's not what you asked) like in the following example :
mystring="$arg112$arg2endoffile"
The brackets are delimiters for the variables when needed. When not needed, you can use it or not.
bash
> 3.1)
$ arg1=foo
$ arg2=bar
$ mystring="$arg1"
$ mystring+="12"
$ mystring+="$arg2"
$ mystring+="endoffile"
$ echo "$mystring"
foo12barendoffile
Private Sub DownloadFile(relativeUrl As String, destinationPath As String, name As String)
Try
destinationPath = Replace(destinationPath + "\" + name, "\\", "\")
Dim fi As FileInformation = Microsoft.SharePoint.Client.File.OpenBinaryDirect(Me.context, relativeUrl)
Dim down As Stream = System.IO.File.Create(destinationPath)
Dim a As Integer = fi.Stream.ReadByte()
While a <> -1
down.WriteByte(CType(a, Byte))
a = fi.Stream.ReadByte()
End While
Catch ex As Exception
ToLog(Type.ERROR, ex.Message)
End Try
End Sub
You probably want to use a CASE
expression.
They look like this:
SELECT col1, col2, (case when (action = 2 and state = 0)
THEN
1
ELSE
0
END)
as state from tbl1;
Try the Date
function. It will give you today's date in a MM/DD/YYYY format. If you're looking for today's date in the MM-DD-YYYY format try Date$
. Now()
also includes the current time (which you might not need). It all depends on what you need. :)
To move up a directory, the quickest way would be to add an alias to ~/.bash_profile
alias ..='cd ..'
and then one would need only to type '..[return]'.
I think apache provides a better util class which provides a function to get the string
ReflectionToStringBuilder.toString(object)
Well, if you really want to return a mapping from _id
to user
, you could always do:
server.get('/usersList', function(req, res) {
User.find({}, function(err, users) {
var userMap = {};
users.forEach(function(user) {
userMap[user._id] = user;
});
res.send(userMap);
});
});
find()
returns all matching documents in an array, so your last code snipped sends that array to the client.
Step 1 :
Add this in htaccess file
<IfModule mod_rewrite.c>
RewriteEngine On
#RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^ index.php [QSA,L]
</IfModule>
Step 2 :
Remove index.php in codeigniter config
$config['base_url'] = '';
$config['index_page'] = '';
Step 3 :
Allow overriding htaccess in Apache Configuration (Command)
sudo nano /etc/apache2/apache2.conf
and edit the file & change to
AllowOverride All
for www folder
Step 4 :
Enabled apache mod rewrite (Command)
sudo a2enmod rewrite
Step 5 :
Restart Apache (Command)
sudo /etc/init.d/apache2 restart
You can use <hr>
for a vertical line as well.
Set the width
to 1
and the size(height) as long as you want.
I used 500 in my example(demo):
With <hr width="1" size="500">
I ended up uninstalling the app from the device and then re-installing it back in Eclipse. This is a problem I get all the time on my device from regular use, but today I got that message from development.
Firefox 64 adds support for the spec draft CSS Scrollbars Module Level 1, which adds two new properties of scrollbar-width
and scrollbar-color
which give some control over how scrollbars are displayed.
You can set scrollbar-color
to one of the following values (descriptions from MDN):
auto
Default platform rendering for the track portion of the scrollbar, in the absence of any other related scrollbar color properties.dark
Show a dark scrollbar, which can be either a dark variant of scrollbar provided by the platform, or a custom scrollbar with dark colors.light
Show a light scrollbar, which can be either a light variant of scrollbar provided by the platform, or a custom scrollbar with light colors.<color>
<color>
Applies the first color to the scrollbar thumb, the second to the scrollbar track.Note that dark
and light
values are not currently implemented in Firefox.
macOS notes:
The auto-hiding semi-transparent scrollbars that are the macOS default cannot be colored with this rule (they still choose their own contrasting color based on the background). Only the permanently showing scrollbars (System Preferences > Show Scroll Bars > Always) are colored.
Visual Demo:
.scroll {_x000D_
width: 20%;_x000D_
height: 100px;_x000D_
border: 1px solid grey;_x000D_
overflow: scroll;_x000D_
display: inline-block;_x000D_
}_x000D_
.scroll-color-auto {_x000D_
scrollbar-color: auto;_x000D_
}_x000D_
.scroll-color-dark {_x000D_
scrollbar-color: dark;_x000D_
}_x000D_
.scroll-color-light {_x000D_
scrollbar-color: light;_x000D_
}_x000D_
.scroll-color-colors {_x000D_
scrollbar-color: orange lightyellow;_x000D_
}
_x000D_
<div class="scroll scroll-color-auto">_x000D_
<p>auto</p><p>auto</p><p>auto</p><p>auto</p><p>auto</p><p>auto</p>_x000D_
</div>_x000D_
_x000D_
<div class="scroll scroll-color-dark">_x000D_
<p>dark</p><p>dark</p><p>dark</p><p>dark</p><p>dark</p><p>dark</p>_x000D_
</div>_x000D_
_x000D_
<div class="scroll scroll-color-light">_x000D_
<p>light</p><p>light</p><p>light</p><p>light</p><p>light</p><p>light</p>_x000D_
</div>_x000D_
_x000D_
<div class="scroll scroll-color-colors">_x000D_
<p>colors</p><p>colors</p><p>colors</p><p>colors</p><p>colors</p><p>colors</p>_x000D_
</div>
_x000D_
You can set scrollbar-width
to one of the following values (descriptions from MDN):
auto
The default scrollbar width for the platform.thin
A thin scrollbar width variant on platforms that provide that option, or a thinner scrollbar than the default platform scrollbar width.none
No scrollbar shown, however the element will still be scrollable.You can also set a specific length value, according to the spec. Both thin
and a specific length may not do anything on all platforms, and what exactly it does is platform-specific. In particular, Firefox doesn't appear to be currently support a specific length value (this comment on their bug tracker seems to confirm this). The thin
keywork does appear to be well-supported however, with macOS and Windows support at-least.
It's probably worth noting that the length value option and the entire scrollbar-width
property are being considered for removal in a future draft, and if that happens this particular property may be removed from Firefox in a future version.
Visual Demo:
.scroll {_x000D_
width: 30%;_x000D_
height: 100px;_x000D_
border: 1px solid grey;_x000D_
overflow: scroll;_x000D_
display: inline-block;_x000D_
}_x000D_
.scroll-width-auto {_x000D_
scrollbar-width: auto;_x000D_
}_x000D_
.scroll-width-thin {_x000D_
scrollbar-width: thin;_x000D_
}_x000D_
.scroll-width-none {_x000D_
scrollbar-width: none;_x000D_
}
_x000D_
<div class="scroll scroll-width-auto">_x000D_
<p>auto</p><p>auto</p><p>auto</p><p>auto</p><p>auto</p><p>auto</p>_x000D_
</div>_x000D_
_x000D_
<div class="scroll scroll-width-thin">_x000D_
<p>thin</p><p>thin</p><p>thin</p><p>thin</p><p>thin</p><p>thin</p>_x000D_
</div>_x000D_
_x000D_
<div class="scroll scroll-width-none">_x000D_
<p>none</p><p>none</p><p>none</p><p>none</p><p>none</p><p>none</p>_x000D_
</div>
_x000D_
Here is an example of how you can do it in Spring 4.0+
application.properties
content:some.key=yes,no,cancel
@Autowire
private Environment env;
...
String[] springRocks = env.getProperty("some.key", String[].class);
The way to dynamically modify a CSS property value in a CSS class is by using a CSS variable in the CSS class property value, and then use JavaScript and the DOM to change the CSS variable. The end result is that the styling on the device screen will immediately change when the code runs that sets the new CSS variable value. So, code changes the CSS variable, and the CSS variable is used in the CSS class setting. Note that a CSS class name and a JavaScript Class are two different things.
<style>
:root { /* Set CSS variable values - These values can be changed with JavaScript
and DOM */
--myCSS_ValueOne: initialValue;
}
.classNameHere {
property_Name_Here: var(--myCSS_ValueOne);/* This CSS property gets its value from
the CSS variable */
}
</style>
JavaScript and DOM
<script>
var r = document.querySelector(':root');//Get global root element
function setA_NewCSS_VariableValue() {
r.style.setProperty('--myCSS_ValueOne', 'the_New_Value');// Set a new CSS variable
//value which immediately changes the CSS class setting because the CSS
//property setting uses a CSS Variable -
}
</script>
It is also possible to run a function in response to media queries (changes in the device viewport - like width of the device screen) using the matchMedia()
method.
var x = window.matchMedia("(max-width: 300px)")
x.addListener(setA_NewCSS_VariableValue) // create a listener function that runs
//when the viewport is less than, or equal to, 300 pixels wide.
In my case I did put Podfile.lock & Manifest.lock in source control, but I forgot to add Pods-Project.debug(release).xcconfig files to source control (by mistakenly adding *.xcconfig to .gitignore), then I got the same compile errors with exactly the same reason, PODS_ROOT is not being set.
So if the goal is that after cloning the repo, the project can immediately build and run, without having CocoaPods installed on the machine, you either add entire Pods directory in source control or add Podfile.lock, Manifest.lock, project's xcconfig files and Pods xcconfig files to source control.
I didn't put the private .xcconfig that merges the build settings with the default CocoaPods configuration to source control.
In my case, set the cpp file to "C/C++ compiler" in "property"->"general", resolve the LNK2019 error.
Resolved it in 2 minutes downtime :)
Just move your folder, add symlink, then tune permissions.
sudo service mongod stop
sudo mv mongodb /new/disk/mongodb/
sudo ln -s /new/disk/mongodb/ /var/lib/mongodb
sudo chown mongodb:mongodb /new/disk/mongodb/
sudo service mongod start
# test if mongodb user can access new location:
sudo -u mongodb -s cd /new/disk/mongodb/
# resolve other permissions issues if necessary
sudo usermod -a -G <newdisk_grp> mongodb
You can use this approach :
public class VTRoutingController : ApiController
{
[HttpPost("Route")]
public MyResult Route(MyRequestTemplate routingRequestTemplate)
{
return null;
}
[HttpPost("TSPRoute")]
public MyResult TSPRoute(MyRequestTemplate routingRequestTemplate)
{
return null;
}
}
Suppose you have two lists:
Id Value
1 A
2 B
3 C
Id ChildValue
1 a1
1 a2
1 a3
2 b1
2 b2
When you Join
the two lists on the Id
field the result will be:
Value ChildValue
A a1
A a2
A a3
B b1
B b2
When you GroupJoin
the two lists on the Id
field the result will be:
Value ChildValues
A [a1, a2, a3]
B [b1, b2]
C []
So Join
produces a flat (tabular) result of parent and child values.
GroupJoin
produces a list of entries in the first list, each with a group of joined entries in the second list.
That's why Join
is the equivalent of INNER JOIN
in SQL: there are no entries for C
. While GroupJoin
is the equivalent of OUTER JOIN
: C
is in the result set, but with an empty list of related entries (in an SQL result set there would be a row C - null
).
So let the two lists be IEnumerable<Parent>
and IEnumerable<Child>
respectively. (In case of Linq to Entities: IQueryable<T>
).
Join
syntax would be
from p in Parent
join c in Child on p.Id equals c.Id
select new { p.Value, c.ChildValue }
returning an IEnumerable<X>
where X is an anonymous type with two properties, Value
and ChildValue
. This query syntax uses the Join
method under the hood.
GroupJoin
syntax would be
from p in Parent
join c in Child on p.Id equals c.Id into g
select new { Parent = p, Children = g }
returning an IEnumerable<Y>
where Y is an anonymous type consisting of one property of type Parent
and a property of type IEnumerable<Child>
. This query syntax uses the GroupJoin
method under the hood.
We could just do select g
in the latter query, which would select an IEnumerable<IEnumerable<Child>>
, say a list of lists. In many cases the select with the parent included is more useful.
As said, the statement ...
from p in Parent
join c in Child on p.Id equals c.Id into g
select new { Parent = p, Children = g }
... produces a list of parents with child groups. This can be turned into a flat list of parent-child pairs by two small additions:
from p in parents
join c in children on p.Id equals c.Id into g // <= into
from c in g.DefaultIfEmpty() // <= flattens the groups
select new { Parent = p.Value, Child = c?.ChildValue }
The result is similar to
Value Child
A a1
A a2
A a3
B b1
B b2
C (null)
Note that the range variable c
is reused in the above statement. Doing this, any join
statement can simply be converted to an outer join
by adding the equivalent of into g from c in g.DefaultIfEmpty()
to an existing join
statement.
This is where query (or comprehensive) syntax shines. Method (or fluent) syntax shows what really happens, but it's hard to write:
parents.GroupJoin(children, p => p.Id, c => c.Id, (p, c) => new { p, c })
.SelectMany(x => x.c.DefaultIfEmpty(), (x,c) => new { x.p.Value, c?.ChildValue } )
So a flat outer join
in LINQ is a GroupJoin
, flattened by SelectMany
.
Suppose the list of parents is a bit longer. Some UI produces a list of selected parents as Id
values in a fixed order. Let's use:
var ids = new[] { 3,7,2,4 };
Now the selected parents must be filtered from the parents list in this exact order.
If we do ...
var result = parents.Where(p => ids.Contains(p.Id));
... the order of parents
will determine the result. If the parents are ordered by Id
, the result will be parents 2, 3, 4, 7. Not good. However, we can also use join
to filter the list. And by using ids
as first list, the order will be preserved:
from id in ids
join p in parents on id equals p.Id
select p
The result is parents 3, 7, 2, 4.
I think there is some confusion about the difference between MVC and Web Api. In short, for MVC you can use a login form and create a session using cookies. For Web Api there is no session. That's why you want to use the token.
You do not need a login form. The Token endpoint is all you need. Like Win described you'll send the credentials to the token endpoint where it is handled.
Here's some client side C# code to get a token:
//using System;
//using System.Collections.Generic;
//using System.Net;
//using System.Net.Http;
//string token = GetToken("https://localhost:<port>/", userName, password);
static string GetToken(string url, string userName, string password) {
var pairs = new List<KeyValuePair<string, string>>
{
new KeyValuePair<string, string>( "grant_type", "password" ),
new KeyValuePair<string, string>( "username", userName ),
new KeyValuePair<string, string> ( "Password", password )
};
var content = new FormUrlEncodedContent(pairs);
ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
using (var client = new HttpClient()) {
var response = client.PostAsync(url + "Token", content).Result;
return response.Content.ReadAsStringAsync().Result;
}
}
In order to use the token add it to the header of the request:
//using System;
//using System.Collections.Generic;
//using System.Net;
//using System.Net.Http;
//var result = CallApi("https://localhost:<port>/something", token);
static string CallApi(string url, string token) {
ServicePointManager.ServerCertificateValidationCallback += (sender, cert, chain, sslPolicyErrors) => true;
using (var client = new HttpClient()) {
if (!string.IsNullOrWhiteSpace(token)) {
var t = JsonConvert.DeserializeObject<Token>(token);
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Add("Authorization", "Bearer " + t.access_token);
}
var response = client.GetAsync(url).Result;
return response.Content.ReadAsStringAsync().Result;
}
}
Where Token is:
//using Newtonsoft.Json;
class Token
{
public string access_token { get; set; }
public string token_type { get; set; }
public int expires_in { get; set; }
public string userName { get; set; }
[JsonProperty(".issued")]
public string issued { get; set; }
[JsonProperty(".expires")]
public string expires { get; set; }
}
Now for the server side:
In Startup.Auth.cs
var oAuthOptions = new OAuthAuthorizationServerOptions
{
TokenEndpointPath = new PathString("/Token"),
Provider = new ApplicationOAuthProvider("self"),
AccessTokenExpireTimeSpan = TimeSpan.FromDays(14),
// https
AllowInsecureHttp = false
};
// Enable the application to use bearer tokens to authenticate users
app.UseOAuthBearerTokens(oAuthOptions);
And in ApplicationOAuthProvider.cs the code that actually grants or denies access:
//using Microsoft.AspNet.Identity.Owin;
//using Microsoft.Owin.Security;
//using Microsoft.Owin.Security.OAuth;
//using System;
//using System.Collections.Generic;
//using System.Security.Claims;
//using System.Threading.Tasks;
public class ApplicationOAuthProvider : OAuthAuthorizationServerProvider
{
private readonly string _publicClientId;
public ApplicationOAuthProvider(string publicClientId)
{
if (publicClientId == null)
throw new ArgumentNullException("publicClientId");
_publicClientId = publicClientId;
}
public override async Task GrantResourceOwnerCredentials(OAuthGrantResourceOwnerCredentialsContext context)
{
var userManager = context.OwinContext.GetUserManager<ApplicationUserManager>();
var user = await userManager.FindAsync(context.UserName, context.Password);
if (user == null)
{
context.SetError("invalid_grant", "The user name or password is incorrect.");
return;
}
ClaimsIdentity oAuthIdentity = await user.GenerateUserIdentityAsync(userManager);
var propertyDictionary = new Dictionary<string, string> { { "userName", user.UserName } };
var properties = new AuthenticationProperties(propertyDictionary);
AuthenticationTicket ticket = new AuthenticationTicket(oAuthIdentity, properties);
// Token is validated.
context.Validated(ticket);
}
public override Task TokenEndpoint(OAuthTokenEndpointContext context)
{
foreach (KeyValuePair<string, string> property in context.Properties.Dictionary)
{
context.AdditionalResponseParameters.Add(property.Key, property.Value);
}
return Task.FromResult<object>(null);
}
public override Task ValidateClientAuthentication(OAuthValidateClientAuthenticationContext context)
{
// Resource owner password credentials does not provide a client ID.
if (context.ClientId == null)
context.Validated();
return Task.FromResult<object>(null);
}
public override Task ValidateClientRedirectUri(OAuthValidateClientRedirectUriContext context)
{
if (context.ClientId == _publicClientId)
{
var expectedRootUri = new Uri(context.Request.Uri, "/");
if (expectedRootUri.AbsoluteUri == context.RedirectUri)
context.Validated();
}
return Task.FromResult<object>(null);
}
}
As you can see there is no controller involved in retrieving the token. In fact, you can remove all MVC references if you want a Web Api only. I have simplified the server side code to make it more readable. You can add code to upgrade the security.
Make sure you use SSL only. Implement the RequireHttpsAttribute to force this.
You can use the Authorize / AllowAnonymous attributes to secure your Web Api. Additionally you can add filters (like RequireHttpsAttribute) to make your Web Api more secure. I hope this helps.
I see lots of confusion in the comments. Null
, IsNull()
and vbNull
are mainly used for database handling and normally not used in VBScript. If it is not explicitly stated in the documentation of the calling object/data, do not use it.
To test if a variable is uninitialized, use IsEmpty()
. To test if a variable is uninitialized or contains ""
, test on ""
or Empty
. To test if a variable is an object, use IsObject
and to see if this object has no reference test on Is Nothing
.
In your case, you first want to test if the variable is an object, and then see if that variable is Nothing
, because if it isn't an object, you get the "Object Required" error when you test on Nothing
.
snippet to mix and match in your code:
If IsObject(provider) Then
If Not provider Is Nothing Then
' Code to handle a NOT empty object / valid reference
Else
' Code to handle an empty object / null reference
End If
Else
If IsEmpty(provider) Then
' Code to handle a not initialized variable or a variable explicitly set to empty
ElseIf provider = "" Then
' Code to handle an empty variable (but initialized and set to "")
Else
' Code to handle handle a filled variable
End If
End If
Or simply
add to your element
[ngStyle]="{'color': myVariableColor}"
eg
<mat-icon [ngStyle]="{'color': myVariableColor}">{{ getActivityIcon() }}</mat-icon>
Where color
can be defined at another component etc
This solution is based from this website: http://social.msdn.microsoft.com/Forums/en-US/bd0ee306-7bb5-4ce4-8341-edd9475f84ad/excel-2007-use-vba-to-download-save-csv-from-url
It is slightly modified to overwrite existing file and to pass along login credentials.
Sub DownloadFile()
Dim myURL As String
myURL = "https://YourWebSite.com/?your_query_parameters"
Dim WinHttpReq As Object
Set WinHttpReq = CreateObject("Microsoft.XMLHTTP")
WinHttpReq.Open "GET", myURL, False, "username", "password"
WinHttpReq.send
If WinHttpReq.Status = 200 Then
Set oStream = CreateObject("ADODB.Stream")
oStream.Open
oStream.Type = 1
oStream.Write WinHttpReq.responseBody
oStream.SaveToFile "C:\file.csv", 2 ' 1 = no overwrite, 2 = overwrite
oStream.Close
End If
End Sub
Addition to @jwize's answer
Because angular.element(document).injector()
was giving error injector is not defined
So, I have created function that you can run after AJAX call or when DOM is changed using jQuery.
function compileAngularElement( elSelector) {
var elSelector = (typeof elSelector == 'string') ? elSelector : null ;
// The new element to be added
if (elSelector != null ) {
var $div = $( elSelector );
// The parent of the new element
var $target = $("[ng-app]");
angular.element($target).injector().invoke(['$compile', function ($compile) {
var $scope = angular.element($target).scope();
$compile($div)($scope);
// Finally, refresh the watch expressions in the new element
$scope.$apply();
}]);
}
}
use it by passing just new element's selector. like this
compileAngularElement( '.user' ) ;
namespace: modules are namespaces...which don't exist in java ;)
I also switched from Java and python to Ruby, I remember had exactly this same question...
So the simplest answer is that module is a namespace, which doesn't exist in Java. In java the closest mindset to namespace is a package.
So a module in ruby is like what in java:
class? No
interface? No
abstract class? No
package? Yes (maybe)
static methods inside classes in java: same as methods inside modules in ruby
In java the minimum unit is a class, you can't have a function outside of a class. However in ruby this is possible (like python).
So what goes into a module?
classes, methods, constants. Module protects them under that namespace.
No instance: modules can't be used to create instances
Mixed ins: sometimes inheritance models are not good for classes, but in terms of functionality want to group a set of classes/ methods/ constants together
Rules about modules in ruby:
- Module names are UpperCamelCase
- constants within modules are ALL CAPS (this rule is the same for all ruby constants, not specific to modules)
- access methods: use . operator
- access constants: use :: symbol
simple example of a module:
module MySampleModule
CONST1 = "some constant"
def self.method_one(arg1)
arg1 + 2
end
end
how to use methods inside a module:
puts MySampleModule.method_one(1) # prints: 3
how to use constants of a module:
puts MySampleModule::CONST1 # prints: some constant
Some other conventions about modules:
Use one module in a file (like ruby classes, one class per ruby file)
If you set numberOfLines
to 0 (and the label to word wrap), the label will automatically wrap and use as many of lines as needed.
If you're editing a UILabel
in IB, you can enter multiple lines of text by pressing option+return to get a line break - return alone will finish editing.
Sometimes cleaning the server works. It worked for me many times.This is only applicable if the program worked earlier but suddenly it stops working.
Steps:
" Right click on Tomcat Server -> Clean. Then restart the server."
This is the free version of their flagship product, but it contains a date and time picker native for asp.net.
For those using NetBeans with SVN, there is an option 'Subversion > Export'.
You can also set processData to true:
collection.fetch({
data: { page: 1 },
processData: true
});
Jquery will auto process data object into param string,
but in Backbone.sync function, Backbone turn the processData off because Backbone will use other method to process data in POST,UPDATE...
in Backbone source:
if (params.type !== 'GET' && !Backbone.emulateJSON) {
params.processData = false;
}
You could use:
$('#btnForm').click(function(){
$.fancybox({
'content' : $("#divForm").html()
});
};
Yes, that should work for Strings, but if you are worried about duplicates use a Set
. This collection prevents duplicates without you having to do anything. A HashSet
is OK to use, but it is unordered so if you want to preserve insertion order you use a LinkedHashSet
.
I believe a good answer is already provided, but I would like to add an easy-to-follow diagram of the different 3 life-cycles (build
, clean
, and site
) and the phases in each.
The phases in bold - are the main phases commonly used.
Given this:
public class SalesTerritory
{
private String territoryName;
private Set<String> geographicExtents;
public SalesTerritory( String territoryName, Set<String> zipCodes )
{
this.territoryName = territoryName;
this.geographicExtents = zipCodes;
}
public String getTerritoryName()
{
return territoryName;
}
public void setTerritoryName( String territoryName )
{
this.territoryName = territoryName;
}
public Set<String> getGeographicExtents()
{
return geographicExtents != null ? Collections.unmodifiableSet( geographicExtents ) : Collections.emptySet();
}
public void setGeographicExtents( Set<String> geographicExtents )
{
this.geographicExtents = new HashSet<>( geographicExtents );
}
@Override
public int hashCode()
{
int hash = 7;
hash = 53 * hash + Objects.hashCode( this.territoryName );
return hash;
}
@Override
public boolean equals( Object obj )
{
if ( this == obj ) {
return true;
}
if ( obj == null ) {
return false;
}
if ( getClass() != obj.getClass() ) {
return false;
}
final SalesTerritory other = (SalesTerritory) obj;
if ( !Objects.equals( this.territoryName, other.territoryName ) ) {
return false;
}
return true;
}
@Override
public String toString()
{
return "SalesTerritory{" + "territoryName=" + territoryName + ", geographicExtents=" + geographicExtents + '}';
}
}
and this:
public class SalesTerritories
{
private static final Set<SalesTerritory> territories
= new HashSet<>(
Arrays.asList(
new SalesTerritory[]{
new SalesTerritory( "North-East, USA",
new HashSet<>( Arrays.asList( new String[]{ "Maine", "New Hampshire", "Vermont",
"Rhode Island", "Massachusetts", "Connecticut",
"New York", "New Jersey", "Delaware", "Maryland",
"Eastern Pennsylvania", "District of Columbia" } ) ) ),
new SalesTerritory( "Appalachia, USA",
new HashSet<>( Arrays.asList( new String[]{ "West-Virgina", "Kentucky",
"Western Pennsylvania" } ) ) ),
new SalesTerritory( "South-East, USA",
new HashSet<>( Arrays.asList( new String[]{ "Virginia", "North Carolina", "South Carolina",
"Georgia", "Florida", "Alabama", "Tennessee",
"Mississippi", "Arkansas", "Louisiana" } ) ) ),
new SalesTerritory( "Mid-West, USA",
new HashSet<>( Arrays.asList( new String[]{ "Ohio", "Michigan", "Wisconsin", "Minnesota",
"Iowa", "Missouri", "Illinois", "Indiana" } ) ) ),
new SalesTerritory( "Great Plains, USA",
new HashSet<>( Arrays.asList( new String[]{ "Oklahoma", "Kansas", "Nebraska",
"South Dakota", "North Dakota",
"Eastern Montana",
"Wyoming", "Colorada" } ) ) ),
new SalesTerritory( "Rocky Mountain, USA",
new HashSet<>( Arrays.asList( new String[]{ "Western Montana", "Idaho", "Utah", "Nevada" } ) ) ),
new SalesTerritory( "South-West, USA",
new HashSet<>( Arrays.asList( new String[]{ "Arizona", "New Mexico", "Texas" } ) ) ),
new SalesTerritory( "Pacific North-West, USA",
new HashSet<>( Arrays.asList( new String[]{ "Washington", "Oregon", "Alaska" } ) ) ),
new SalesTerritory( "Pacific South-West, USA",
new HashSet<>( Arrays.asList( new String[]{ "California", "Hawaii" } ) ) )
}
)
);
public static Set<SalesTerritory> getAllTerritories()
{
return Collections.unmodifiableSet( territories );
}
private SalesTerritories()
{
}
}
We can then do this:
System.out.println();
System.out
.println( "We can use 'flatMap' in combination with the 'AbstractMap.SimpleEntry' class to flatten a hierarchical data-structure to a set of Key/Value pairs..." );
SalesTerritories.getAllTerritories()
.stream()
.flatMap( t -> t.getGeographicExtents()
.stream()
.map( ge -> new SimpleEntry<>( t.getTerritoryName(), ge ) )
)
.map( e -> String.format( "%-30s : %s",
e.getKey(),
e.getValue() ) )
.forEach( System.out::println );
A Fragment is a piece of an application's user interface or behavior that can be placed in an Activity which enable a more modular activity design. It will not be wrong if we say a fragment is a kind of subactivity.
Following are important points about a fragment:
A fragment has its own layout and its own behavior with its own lifecycle callbacks.
You can add or remove fragments in an activity while the activity is running.
You can combine multiple fragments in a single activity to build a multi-pane UI.
A fragment can be used in multiple activities.
The fragment life cycle is closely related to the lifecycle of its host activity.
When the activity is paused, all the fragments available in the acivity will also be stopped.
A fragment can implement a behavior that has no user interface component.
Fragments were added to the Android API in Android 3 (Honeycomb) with API version 11.
For more details, please visit the official site, Fragments.
Why not do string suppression with triple quotes:
>>> s = """my string with "some" double quotes"""
>>> print s
my string with "some" double quotes
It's worth noting that event.target can be useful, for example, for using a single listener to trigger different actions. Let's say you have the typical "menu" sprite with 10 buttons inside, so instead of doing:
menu.button1.addEventListener(MouseEvent.CLICK, doAction1);
menu.button2.addEventListener(MouseEvent.CLICK, doAction2);
etc...
You can simply do:
menu.addEventListener(MouseEvent.CLICK, doAction);
And trigger a different action within doAction(event) depending on the event.target (using it's name property, etc...)
public class RandomNum {
public static void main(String[] args) {
Random rn = new Random();
HashSet<Integer> hSet = new HashSet<>();
while(hSet.size() != 1000) {
hSet.add(rn.nextInt(1000));
}
System.out.println(hSet);
}
}
I imported the project as general project from git repository.
.settings
, .project
and .classpath
in project's folder Configure -> Convert to Maven Project
. Only this solved the problem in my case.use Set Comprehensions {x for x in l2} or set(l2) to get set, then use List Comprehensions to get list
l2set = set(l2)
l3 = [x for x in l1 if x not in l2set]
benchmark test code:
import time
l1 = list(range(1000*10 * 3))
l2 = list(range(1000*10 * 2))
l2set = {x for x in l2}
tic = time.time()
l3 = [x for x in l1 if x not in l2set]
toc = time.time()
diffset = toc-tic
print(diffset)
tic = time.time()
l3 = [x for x in l1 if x not in l2]
toc = time.time()
difflist = toc-tic
print(difflist)
print("speedup %fx"%(difflist/diffset))
benchmark test result:
0.0015058517456054688
3.968189239501953
speedup 2635.179227x
I think the Amelia library does a nice job in handling missing data also includes a map for visualizing the missing rows.
install.packages("Amelia")
library(Amelia)
missmap(airquality)
You can also run the following code will return the logic values of na
row.has.na <- apply(training, 1, function(x){any(is.na(x))})
This way:
db.collection_name.find().toArray().then(...function...)
Take a look at np.bincount
:
http://docs.scipy.org/doc/numpy/reference/generated/numpy.bincount.html
import numpy as np
x = np.array([1,1,1,2,2,2,5,25,1,1])
y = np.bincount(x)
ii = np.nonzero(y)[0]
And then:
zip(ii,y[ii])
# [(1, 5), (2, 3), (5, 1), (25, 1)]
or:
np.vstack((ii,y[ii])).T
# array([[ 1, 5],
[ 2, 3],
[ 5, 1],
[25, 1]])
or however you want to combine the counts and the unique values.
(PartlyStolen from ServerFault)
I think that both are functionally the same, but they simply have different authors, and the one is simply named more appropriately than the other.
Here is a quick backgrounder in naming conventions (for those unfamiliar), which explains the frustration by the question asker: For many *nix applications, the piece that does the backend work is called a "daemon" (think "service" in Windows-land), while the interface or client application is what you use to control or access the daemon. The daemon is most often named the same as the client, with the letter "d" appended to it. For example "imap" would be a client that connects to the "imapd" daemon.
This naming convention is clearly being adhered to by memcache when you read the introduction to the memcache module (notice the distinction between memcache and memcached in this excerpt):
Memcache module provides handy procedural and object oriented interface to memcached, highly effective caching daemon, which was especially designed to decrease database load in dynamic web applications.
The Memcache module also provides a session handler (memcache).
More information about memcached can be found at » http://www.danga.com/memcached/.
The frustration here is caused by the author of the PHP extension which was badly named memcached, since it shares the same name as the actual daemon called memcached. Notice also that in the introduction to memcached (the php module), it makes mention of libmemcached, which is the shared library (or API) that is used by the module to access the memcached daemon:
memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load.
This extension uses libmemcached library to provide API for communicating with memcached servers. It also provides a session handler (memcached).
Information about libmemcached can be found at » http://tangent.org/552/libmemcached.html.
Go to Terminal -> Preferences -> Advanced (Tab)
go down to International
and select Unicode (UTF-8)
as Character Encoding
.
And tick Set locale environment variables on startup
.
<?php
include("config.php");
$id=$_GET['id'];
include("config.php");
if($insert = mysqli_query($con,"update consumer_closeconnection set close_status='Pending' where id="$id" "))
{
?>
<script>
window.location.href='ConsumerCloseConnection.php';
</script>
<?php
}
else
{
?>
<script>
window.location.href='ConsumerCloseConnection.php';
</script>
<?php
}
?>
I am not sure what the difference is with the retail NCover, but there is also an NCover project on SourceForge that is of course open source and free.
Take a step back! Firstly, you're assuming the user is using a foreign locale on their device, which is not a sound assumption for justifying taking over the button text of the file picker, and making it say what you want it to.
It is reasonable that you want to control every item of language visible on your page. The content of the File Upload control is not part of the HTML though. There is more content behind this control, for example, in WebKit, it also says "No file chosen" next to the button.
There are very hacky workarounds that attempt this (e.g. like those mentioned in @ChristopheD's answer), but none of them truly succeed:
Deviating from the native controls is always a risky thing, there is a whole host of different devices your users could be using, and whatever workaround you choose, you will not have tested it in every one of those devices.
However, there is an even bigger reason why all attempts fail from a User Experience perspective: there is even more non-localized content behind this control, the file selection dialog itself. Once the user is subject to traversing their file system or what not to select a file to upload, they will be subjected to the host Operating System locale.
Are you sure you're doing your user any justice by deviating from the native control, just to localize the text, when as soon as they click it, they're just going to get the Operating System locale anyway?
The best you can do for your users is to ensure you have adequate localised guidance surrounding your file input control. (e.g. Form field label, hint text, tooltip text).
Sorry. :-(
--
This answer is for those looking for any justification not to localise the file upload control.
Another option is to map is as a Map of composite elements in the ConfPath table.
This mapping would benefit from an index on (ConfPathID,levelStation) though.
public class ConfPath {
private Map<Long,Time> timeForLevelStation = new HashMap<Long,Time>();
public Time getTime(long levelStation) {
return timeForLevelStation.get(levelStation);
}
public void putTime(long levelStation, Time newValue) {
timeForLevelStation.put(levelStation, newValue);
}
}
public class Time {
String src;
String dst;
long distance;
long price;
public long getDistance() {
return distance;
}
public void setDistance(long distance) {
this.distance = distance;
}
public String getDst() {
return dst;
}
public void setDst(String dst) {
this.dst = dst;
}
public long getPrice() {
return price;
}
public void setPrice(long price) {
this.price = price;
}
public String getSrc() {
return src;
}
public void setSrc(String src) {
this.src = src;
}
}
Mapping:
<class name="ConfPath" table="ConfPath">
<id column="ID" name="id">
<generator class="native"/>
</id>
<map cascade="all-delete-orphan" name="values" table="example"
lazy="extra">
<key column="ConfPathID"/>
<map-key type="long" column="levelStation"/>
<composite-element class="Time">
<property name="src" column="src" type="string" length="100"/>
<property name="dst" column="dst" type="string" length="100"/>
<property name="distance" column="distance"/>
<property name="price" column="price"/>
</composite-element>
</map>
</class>
The accepted answer here is correct but I'd like to add a little info. If you are using a library / framework like bootstrap there may be built in classes for this. For example bootstrap uses the text-right
class. Use it like this:
<input type="text" class="text-right"/>
<input type="number" class="text-right"/>
As a note this works on other input types as well, like numeric as shown above.
If you aren't using a nice framework like bootstrap then you can make your own version of this helper class. Similar to other answers but we are not going to add it directly to the input class so it won't apply to every single input on your site or page, this might not be desired behavior. So this would create a nice easy css class to align things right without needing inline styling or affecting every single input box.
.text-right{
text-align: right;
}
Now you can use this class exactly the same as the inputs above with class="text-right"
. I know it isn't saving that many key strokes but it makes your code cleaner.
in standart Vi editor in this situation you should
I want to share something that blocked us for a couple of days: the fileprovider code MUST be inserted between the application tags, not after it. It may be trivial, but it's never specified, and I thought that I could have helped someone! (thanks again to piolo94)
You should not use graph api. If you either call:
or
both will return:
{
"id": "http://www.apple.com",
"shares": 1146997
}
But the number shown is the sum of:
So you must use FQL.
Look at this answer: How to fetch facebook likes, share, comments count from an article
Use this simple code
<div w3-include-HTML="content.html"></div>
<script>w3.includeHTML();</script>
</body>```
Lambda expressions have a type of Action<parameters>
(in case they don't return a value) or Func<parameters,return>
(in case they have a return value). In your case you have two input parameters, and you need to return a value, so you should use:
Func<FullTimeJob, Student, FullTimeJob>
If you’re able to absolutely position your elements,
position: absolute;
top: 0;
bottom: 0;
would do it.
I had a similar problem, not exactly the same conditions and then i saw this post. Hope it helps someone. Apparently i was using one of my EF entity models a base class for a type that was not specified as a db set in my dbcontext. To fix this issue i had to create a base class that had all the properties common to the two types and inherit from the new base class among the two types.
Example:
//Bad Flow
//class defined in dbcontext as a dbset
public class Customer{
public int Id {get; set;}
public string Name {get; set;}
}
//class not defined in dbcontext as a dbset
public class DuplicateCustomer:Customer{
public object DuplicateId {get; set;}
}
//Good/Correct flow*
//Common base class
public class CustomerBase{
public int Id {get; set;}
public string Name {get; set;}
}
//entity model referenced in dbcontext as a dbset
public class Customer: CustomerBase{
}
//entity model not referenced in dbcontext as a dbset
public class DuplicateCustomer:CustomerBase{
public object DuplicateId {get; set;}
}
You can use shorthand syntax as of Twig 1.12.0
{{ foo ?: 'no' }} is the same as {{ foo ? foo : 'no' }}
{{ foo ? 'yes' }} is the same as {{ foo ? 'yes' : '' }}
Are you wanting ruby gems? If so, you need to install libgemplugin-ruby and then the ruby 'gem' program will be in your path:
aptitude install libgemplugin-ruby
Containers use the OS kernel. Windows Container utilize processes in order to run. So theoretically speaking Windows Containers cannot run on Linux.
However there are workarounds utilizing VMstyle solutions.
I Have found this solution which uses Vagrant and Packer on Mac, so it should work for Linux as well: https://github.com/StefanScherer/windows-docker-machine
This Vagrant environment creates a Docker Machine to work on your MacBook with Windows containers. You can easily switch between Docker for Mac Linux containers and the Windows containers.
building the headless Vagrant box
$ git clone https://github.com/StefanScherer/packer-windows $ cd packer-windows $ packer build --only=vmware-iso windows_2019_docker.json $ vagrant box add windows_2019_docker windows_2019_docker_vmware.box
Create the Docker Machine
$ git clone https://github.com/StefanScherer/windows-docker-machine $ cd windows-docker-machine $ vagrant up --provider vmware_fusion 2019
Switch to Windows containers
$ eval $(docker-machine env 2019)
In my case, it's related to the Toggle Vrapper Icon in the Eclipse.
If you are getting the bold black cursor, then the icon must be enabled. So, click on the Toggle Vrapper Icon to disable. It's located in the Eclipse's Toolbar. Please see the attached image for the clarity.
strsplit(c('a|b','b|c'),'|',fixed=TRUE)
If you want just simple shortcuts (like 1 letter, for example just g) you could easily do it without a extra plugin:
$(document).keypress(function(e) {
if(e.charCode == 103) {
// Your Code
}
});
There are very good examples here to start trying with, but all of them are based on adding some extra or external element like a "div" as a reference element to drag it, and calculate the new dimensions or position of the original element.
Here's an example that doesn't use any extra elements. We could add borders, padding or margin without affecting its operation. In this example we have not added color, nor any visual reference to the borders nor to the lower right corner as a clue where you can enlarge or reduce dimensions, but using the cursor around the resizable elements the clues appears!
let resizerForCenter = new Resizer('center')
resizerForCenter.initResizer()
See it in action with CodeSandbox:
In this example we use ES6, and a module that exports a class called Resizer. An example is worth a thousand words:
Or with the code snippet:
const html = document.querySelector('html')_x000D_
_x000D_
class Resizer {_x000D_
constructor(elemId) {_x000D_
this._elem = document.getElementById(elemId)_x000D_
/**_x000D_
* Stored binded context handlers for method passed to eventListeners!_x000D_
* _x000D_
* See: https://stackoverflow.com/questions/9720927/removing-event-listeners-as-class-prototype-functions_x000D_
*/_x000D_
this._checkBorderHandler = this._checkBorder.bind(this)_x000D_
this._doResizeHandler = this._doResize.bind(this)_x000D_
this._initResizerHandler = this.initResizer.bind(this)_x000D_
this._onResizeHandler = this._onResize.bind(this)_x000D_
}_x000D_
_x000D_
initResizer() {_x000D_
this.stopResizer()_x000D_
this._beginResizer()_x000D_
}_x000D_
_x000D_
_beginResizer() {_x000D_
this._elem.addEventListener('mousemove', this._checkBorderHandler, false)_x000D_
}_x000D_
_x000D_
stopResizer() {_x000D_
html.style.cursor = 'default'_x000D_
this._elem.style.cursor = 'default'_x000D_
_x000D_
window.removeEventListener('mousemove', this._doResizeHandler, false)_x000D_
window.removeEventListener('mouseup', this._initResizerHandler, false)_x000D_
_x000D_
this._elem.removeEventListener('mousedown', this._onResizeHandler, false)_x000D_
this._elem.removeEventListener('mousemove', this._checkBorderHandler, false)_x000D_
}_x000D_
_x000D_
_doResize(e) {_x000D_
let elem = this._elem_x000D_
_x000D_
let boxSizing = getComputedStyle(elem).boxSizing_x000D_
let borderRight = 0_x000D_
let borderLeft = 0_x000D_
let borderTop = 0_x000D_
let borderBottom = 0_x000D_
_x000D_
let paddingRight = 0_x000D_
let paddingLeft = 0_x000D_
let paddingTop = 0_x000D_
let paddingBottom = 0_x000D_
_x000D_
switch (boxSizing) {_x000D_
case 'content-box':_x000D_
paddingRight = parseInt(getComputedStyle(elem).paddingRight)_x000D_
paddingLeft = parseInt(getComputedStyle(elem).paddingLeft)_x000D_
paddingTop = parseInt(getComputedStyle(elem).paddingTop)_x000D_
paddingBottom = parseInt(getComputedStyle(elem).paddingBottom)_x000D_
break_x000D_
case 'border-box':_x000D_
borderRight = parseInt(getComputedStyle(elem).borderRight)_x000D_
borderLeft = parseInt(getComputedStyle(elem).borderLeft)_x000D_
borderTop = parseInt(getComputedStyle(elem).borderTop)_x000D_
borderBottom = parseInt(getComputedStyle(elem).borderBottom)_x000D_
break_x000D_
default: break_x000D_
}_x000D_
_x000D_
let horizontalAdjustment = (paddingRight + paddingLeft) - (borderRight + borderLeft)_x000D_
let verticalAdjustment = (paddingTop + paddingBottom) - (borderTop + borderBottom)_x000D_
_x000D_
let newWidth = elem.clientWidth + e.movementX - horizontalAdjustment + 'px'_x000D_
let newHeight = elem.clientHeight + e.movementY - verticalAdjustment + 'px'_x000D_
_x000D_
let cursorType = getComputedStyle(elem).cursor_x000D_
switch (cursorType) {_x000D_
case 'all-scroll':_x000D_
elem.style.width = newWidth_x000D_
elem.style.height = newHeight_x000D_
break_x000D_
case 'col-resize':_x000D_
elem.style.width = newWidth_x000D_
break_x000D_
case 'row-resize':_x000D_
elem.style.height = newHeight_x000D_
break_x000D_
default: break_x000D_
}_x000D_
}_x000D_
_x000D_
_onResize(e) {_x000D_
// On resizing state!_x000D_
let elem = e.target_x000D_
let newCursorType = undefined_x000D_
let cursorType = getComputedStyle(elem).cursor_x000D_
switch (cursorType) {_x000D_
case 'nwse-resize':_x000D_
newCursorType = 'all-scroll'_x000D_
break_x000D_
case 'ew-resize':_x000D_
newCursorType = 'col-resize'_x000D_
break_x000D_
case 'ns-resize':_x000D_
newCursorType = 'row-resize'_x000D_
break_x000D_
default: break_x000D_
}_x000D_
_x000D_
html.style.cursor = newCursorType // Avoid cursor's flickering _x000D_
elem.style.cursor = newCursorType_x000D_
_x000D_
// Remove what is not necessary, and could have side effects!_x000D_
elem.removeEventListener('mousemove', this._checkBorderHandler, false);_x000D_
_x000D_
// Events on resizing state_x000D_
/**_x000D_
* We do not apply the mousemove event on the elem to resize it, but to the window to prevent the mousemove from slippe out of the elem to resize. This work bc we calculate things based on the mouse position_x000D_
*/_x000D_
window.addEventListener('mousemove', this._doResizeHandler, false);_x000D_
window.addEventListener('mouseup', this._initResizerHandler, false);_x000D_
}_x000D_
_x000D_
_checkBorder(e) {_x000D_
const elem = e.target_x000D_
const borderSensitivity = 5_x000D_
const coor = getCoordenatesCursor(e)_x000D_
const onRightBorder = ((coor.x + borderSensitivity) > elem.scrollWidth)_x000D_
const onBottomBorder = ((coor.y + borderSensitivity) > elem.scrollHeight)_x000D_
const onBottomRightCorner = (onRightBorder && onBottomBorder)_x000D_
_x000D_
if (onBottomRightCorner) {_x000D_
elem.style.cursor = 'nwse-resize'_x000D_
} else if (onRightBorder) {_x000D_
elem.style.cursor = 'ew-resize'_x000D_
} else if (onBottomBorder) {_x000D_
elem.style.cursor = 'ns-resize'_x000D_
} else {_x000D_
elem.style.cursor = 'auto'_x000D_
}_x000D_
_x000D_
if (onRightBorder || onBottomBorder) {_x000D_
elem.addEventListener('mousedown', this._onResizeHandler, false)_x000D_
} else {_x000D_
elem.removeEventListener('mousedown', this._onResizeHandler, false)_x000D_
}_x000D_
}_x000D_
}_x000D_
_x000D_
function getCoordenatesCursor(e) {_x000D_
let elem = e.target;_x000D_
_x000D_
// Get the Viewport-relative coordinates of cursor._x000D_
let viewportX = e.clientX_x000D_
let viewportY = e.clientY_x000D_
_x000D_
// Viewport-relative position of the target element._x000D_
let elemRectangle = elem.getBoundingClientRect()_x000D_
_x000D_
// The function returns the largest integer less than or equal to a given number._x000D_
let x = Math.floor(viewportX - elemRectangle.left) // - elem.scrollWidth_x000D_
let y = Math.floor(viewportY - elemRectangle.top) // - elem.scrollHeight_x000D_
_x000D_
return {x, y}_x000D_
}_x000D_
_x000D_
let resizerForCenter = new Resizer('center')_x000D_
resizerForCenter.initResizer()_x000D_
_x000D_
let resizerForLeft = new Resizer('left')_x000D_
resizerForLeft.initResizer()_x000D_
_x000D_
setTimeout(handler, 10000, true); // 10s_x000D_
_x000D_
function handler() {_x000D_
resizerForCenter.stopResizer()_x000D_
}
_x000D_
body {_x000D_
background-color: white;_x000D_
}_x000D_
_x000D_
#wrapper div {_x000D_
/* box-sizing: border-box; */_x000D_
position: relative;_x000D_
float:left;_x000D_
overflow: hidden;_x000D_
height: 50px;_x000D_
width: 50px;_x000D_
padding: 3px;_x000D_
}_x000D_
_x000D_
#left {_x000D_
background-color: blueviolet;_x000D_
}_x000D_
#center {_x000D_
background-color:lawngreen ;_x000D_
}_x000D_
#right {_x000D_
background: blueviolet;_x000D_
}_x000D_
#wrapper {_x000D_
border: 5px solid hotpink;_x000D_
display: inline-block;_x000D_
_x000D_
}
_x000D_
<!DOCTYPE html>_x000D_
<html lang="en">_x000D_
<head>_x000D_
<meta charset="UTF-8">_x000D_
<meta name="viewport" content="width=device-width, initial-scale=1.0">_x000D_
<meta http-equiv="X-UA-Compatible" content="ie=edge">_x000D_
<title>Resizer v0.0.1</title>_x000D_
</head>_x000D_
<body>_x000D_
<div id="wrapper">_x000D_
<div id="left">Left</div>_x000D_
<div id="center">Center</div>_x000D_
<div id="right">Right</div>_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
You can use tree to generate something very similar to your example. Once you have the output, you can wrap it in a <pre>
tag to preserve the plain text formatting.
If has access to CryptoPP
Readable Hex String to unsigned char
std::string& hexed = "C23412341324AB";
uint8_t buffer[64] = {0};
StringSource ssk(hexed, true,
new HexDecoder(new ArraySink(buffer,sizeof(buffer))));
And back
std::string hexed;
uint8_t val[32] = {0};
StringSource ss(val, sizeof(val), true,new HexEncoder(new StringSink(hexed));
// val == buffer
Well, here is a solution if you want the background to be other than a solid black color. We only need to invert the mask and apply it in a background image of the same size and then combine both background and foreground. A pro of this solution is that the background could be anything (even other image).
This example is modified from Hough Circle Transform. First image is the OpenCV logo, second the original mask, third the background + foreground combined.
# http://opencv-python-tutroals.readthedocs.io/en/latest/py_tutorials/py_imgproc/py_houghcircles/py_houghcircles.html
import cv2
import numpy as np
# load the image
img = cv2.imread('E:\\FOTOS\\opencv\\opencv_logo.png')
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
# detect circles
gray = cv2.medianBlur(cv2.cvtColor(img, cv2.COLOR_RGB2GRAY), 5)
circles = cv2.HoughCircles(gray, cv2.HOUGH_GRADIENT, 1, 20, param1=50, param2=50, minRadius=0, maxRadius=0)
circles = np.uint16(np.around(circles))
# draw mask
mask = np.full((img.shape[0], img.shape[1]), 0, dtype=np.uint8) # mask is only
for i in circles[0, :]:
cv2.circle(mask, (i[0], i[1]), i[2], (255, 255, 255), -1)
# get first masked value (foreground)
fg = cv2.bitwise_or(img, img, mask=mask)
# get second masked value (background) mask must be inverted
mask = cv2.bitwise_not(mask)
background = np.full(img.shape, 255, dtype=np.uint8)
bk = cv2.bitwise_or(background, background, mask=mask)
# combine foreground+background
final = cv2.bitwise_or(fg, bk)
Note: It is better to use the opencv methods because they are optimized.
git clone <remote-url>
<=>
git init
// init new repositorygit remote add origin <remote-url>
// add remotegit fetch
// fetch all remote branchsgit switch <default_branch>
// switch to the default branchgit pull
<=>
git pull <remote> <branch>
<=>
.md
stands for markdown and is generated at the bottom of your github page as html.
Typical syntax includes:
Will become a heading
==============
Will become a sub heading
--------------
*This will be Italic*
**This will be Bold**
- This will be a list item
- This will be a list item
Add a indent and this will end up as code
For more details: http://daringfireball.net/projects/markdown/
While it's true that Collections.unmodifiableList()
works, sometimes you may have a large library having methods already defined to return arrays (e.g. String[]
).
To prevent breaking them, you can actually define auxiliary arrays that will store the values:
public class Test {
private final String[] original;
private final String[] auxiliary;
/** constructor */
public Test(String[] _values) {
original = new String[_values.length];
// Pre-allocated array.
auxiliary = new String[_values.length];
System.arraycopy(_values, 0, original, 0, _values.length);
}
/** Get array values. */
public String[] getValues() {
// No need to call clone() - we pre-allocated auxiliary.
System.arraycopy(original, 0, auxiliary, 0, original.length);
return auxiliary;
}
}
To test:
Test test = new Test(new String[]{"a", "b", "C"});
System.out.println(Arrays.asList(test.getValues()));
String[] values = test.getValues();
values[0] = "foobar";
// At this point, "foobar" exist in "auxiliary" but since we are
// copying "original" to "auxiliary" for each call, the next line
// will print the original values "a", "b", "c".
System.out.println(Arrays.asList(test.getValues()));
Not perfect, but at least you have "pseudo immutable arrays" (from the class perspective) and this will not break related code.
I had a similar issue, and following previous answers (thanks!), I was able to search and find how to handle correctly the ThreadPoolExecutor terminaison.
In my case, that just fix my progressive increase of similar blocked threads:
ExecutorService::awaitTermination(x, TimeUnit)
and ExecutorService::shutdownNow()
(if necessary) in my finally clause.For information, I've used the following commands to detect thread count & list locked threads:
ps -u javaAppuser -L|wc -l
jcmd `ps -C java -o pid=` Thread.print >> threadPrintDayA.log
jcmd `ps -C java -o pid=` Thread.print >> threadPrintDayAPlusOne.log
cat threadPrint*.log |grep "pool-"|wc -l
The problem in my case was that in order to catch another exception I had enabled common language runtime (CLR) exceptions. And I forgot to disable it.
I disabled it in my exception setting. and it overlooked this exception and went on to run and create a db for me (in my case) automatically.
The following is slower than the approaches timed here, but we can compute the extra column based on the contents of more than one column, and more than two values can be computed for the extra column.
Simple example using just the "Set" column:
def set_color(row):
if row["Set"] == "Z":
return "red"
else:
return "green"
df = df.assign(color=df.apply(set_color, axis=1))
print(df)
Set Type color
0 Z A red
1 Z B red
2 X B green
3 Y C green
Example with more colours and more columns taken into account:
def set_color(row):
if row["Set"] == "Z":
return "red"
elif row["Type"] == "C":
return "blue"
else:
return "green"
df = df.assign(color=df.apply(set_color, axis=1))
print(df)
Set Type color
0 Z A red
1 Z B red
2 X B green
3 Y C blue
It is also possible to use plydata to do this kind of things (this seems even slower than using assign
and apply
, though).
from plydata import define, if_else
Simple if_else
:
df = define(df, color=if_else('Set=="Z"', '"red"', '"green"'))
print(df)
Set Type color
0 Z A red
1 Z B red
2 X B green
3 Y C green
Nested if_else
:
df = define(df, color=if_else(
'Set=="Z"',
'"red"',
if_else('Type=="C"', '"green"', '"blue"')))
print(df)
Set Type color
0 Z A red
1 Z B red
2 X B blue
3 Y C green
This should give you a start
>>> import json
>>> print json.dumps([{'name': k, 'size': v} for k,v in sample.items()], indent=4)
[
{
"name": "PointInterpolator",
"size": 1675
},
{
"name": "ObjectInterpolator",
"size": 1629
},
{
"name": "RectangleInterpolator",
"size": 2042
}
]
To avoid errors in any excel function, use the Error Handling functions that start with IS* in Excel. Embed your function with these error handing functions and avoid the undesirable text in your results. More info in OfficeTricks Page
None of those answers are working for me (either generating a 500 error or doing nothing). That is probably due to the fact that I'm working on a hosted server where I can't have access to Apache configuration.
But this worked for me :
RewriteRule ^.*\.php$ - [F,L]
This line will generate a 403 Forbidden error for any URL that ends with .php
and ends up in this subdirectory.
@Oussama lead me to the right direction here, thanks to him.
<script>
var name=document.getElementById("name").value;
var address= document.getElementById("address").value;
var age= document.getElementById("age").value;
$.ajax({
type:"GET",
url:"http://hostname/projectfolder/webservicename.php?callback=jsondata&web_name="+name+"&web_address="+address+"&web_age="+age,
crossDomain:true,
dataType:'jsonp',
success: function jsondata(data)
{
var parsedata=JSON.parse(JSON.stringify(data));
var logindata=parsedata["Status"];
if("sucess"==logindata)
{
alert("success");
}
else
{
alert("failed");
}
}
});
<script>
You need to use web services. In the above code I have php web service to be used which has a callback function which is optional. Assuming you know HTML5 I did not post the html code. In the url you can send the details to the web server.
A few comments:
import sun.misc.*;
Don't do this. It is non-standard and not guaranteed to be the same between implementations. There are other libraries with Base64 conversion available.
byte[] encVal = c.doFinal(Data.getBytes());
You are relying on the default character encoding here. Always specify what character encoding you are using: byte[] encVal = c.doFinal(Data.getBytes("UTF-8"));
Defaults might be different in different places.
As @thegrinner pointed out, you need to explicitly check the length of your byte arrays. If there is a discrepancy, then compare them byte by byte to see where the difference is creeping in.
select email from mytable group by email having count(*) >1
wc
can't get the filename if you don't give it one.
wc -l < "$JAVA_TAGS_FILE"
The correct php way is to use parse_url()
http://php.net/manual/en/function.parse-url.php
(from php manual)
This function parses a URL and returns an associative array containing any of the various components of the URL that are present.
This function is not meant to validate the given URL, it only breaks it up into the above listed parts. Partial URLs are also accepted, parse_url() tries its best to parse them correctly.
Found this useful - ensures the compiled Assembly references everything you currently have referenced, since there's a good chance you wanted the C# you're compiling to use some classes etc in the code that's emitting this:
(string code
is the dynamic C# being compiled)
var refs = AppDomain.CurrentDomain.GetAssemblies();
var refFiles = refs.Where(a => !a.IsDynamic).Select(a => a.Location).ToArray();
var cSharp = (new Microsoft.CSharp.CSharpCodeProvider()).CreateCompiler();
var compileParams = new System.CodeDom.Compiler.CompilerParameters(refFiles);
compileParams.GenerateInMemory = true;
compileParams.GenerateExecutable = false;
var compilerResult = cSharp.CompileAssemblyFromSource(compileParams, code);
var asm = compilerResult.CompiledAssembly;
In my case I was emitting a class, whose name was stored in a string, className
, which had a single public static method named Get()
, that returned with type StoryDataIds
. Here's what calling that method looks like:
var tempType = asm.GetType(className);
var ids = (StoryDataIds)tempType.GetMethod("Get").Invoke(null, null);
Warning: Compilation can be surprisingly, extremely slow. A small, relatively simple 10-line chunk of code compiles at normal priority in 2-10 seconds on our relatively fast server. You should never tie calls to CompileAssemblyFromSource()
to anything with normal performance expectations, like a web request. Instead, proactively compile code you need on a low-priority thread and have a way of dealing with code that requires that code to be ready, until it's had a chance to finish compiling. For example you could use it in a batch job process.
You are looking for the window.scrollTop()
function.
$(window).scroll(function() {
var height = $(window).scrollTop();
if(height > some_number) {
// do something
}
});
If using jruby, here is a code snippet to return an array of all tables in a db.
require "rubygems"
require "jdbc/mysql"
Jdbc::MySQL.load_driver
require "java"
def get_database_tables(connection, db_name)
md = connection.get_meta_data
rs = md.get_tables(db_name, nil, '%',["TABLE"])
tables = []
count = 0
while rs.next
tables << rs.get_string(3)
end #while
return tables
end
sys.argv
to get the command-line parametersopen()
, read()
to manipulate fileYou can find record by month, day, year etc of dates by Date Aggregation Operators, like $dayOfYear, $dayOfWeek, $month, $year etc.
As an example if you want all the orders which are created in April 2016 you can use below query.
db.getCollection('orders').aggregate(
[
{
$project:
{
doc: "$$ROOT",
year: { $year: "$created" },
month: { $month: "$created" },
day: { $dayOfMonth: "$created" }
}
},
{ $match : { "month" : 4, "year": 2016 } }
]
)
Here created is a date type field in documents, and $$ROOT we used to pass all other field to project in next stage, and give us all the detail of documents.
You can optimize above query as per your need, it is just to give an example. To know more about Date Aggregation Operators, visit the link.
Simply type source ~/.bash_profile
Alternatively, if you like saving keystrokes you can type . ~/.bash_profile
here you go
var str = "['abc',['def','ghi'],'jkl']";
//'[\'abc\',[\'def\',\'ghi\'],\'jkl\']'
str.replace(/[\[\]']/g,'' );
//'abc,def,ghi,jkl'
In order to read or write to the standard input/output streams you need to include it.
int main( int argc, char * argv[] )
{
std::cout << "Hello World!" << std::endl;
return 0;
}
That program will not compile unless you add #include <iostream>
The second line isn't necessary
using namespace std;
What that does is tell the compiler that symbol names defined in the std
namespace are to be brought into your program's scope, so you can omit the namespace qualifier, and write for example
#include <iostream>
using namespace std;
int main( int argc, char * argv[] )
{
cout << "Hello World!" << endl;
return 0;
}
Notice you no longer need to refer to the output stream with the fully qualified name std::cout
and can use the shorter name cout
.
I personally don't like bringing in all symbols in the namespace of a header file... I'll individually select the symbols I want to be shorter... so I would do this:
#include <iostream>
using std::cout;
using std::endl;
int main( int argc, char * argv[] )
{
cout << "Hello World!" << endl;
return 0;
}
But that is a matter of personal preference.
In JavaScript, the type of the value solely controls whether that value will be assigned by value-copy or by reference-copy.
Primitive values are always assigned/passed by value-copy:
null
undefined
ES6
Compound values are always assigned/passed by reference-copy
For example
var a = 2;
var b = a; // `b` is always a copy of the value in `a`
b++;
a; // 2
b; // 3
var c = [1,2,3];
var d = c; // `d` is a reference to the shared `[1,2,3]` value
d.push( 4 );
c; // [1,2,3,4]
d; // [1,2,3,4]
In the above snippet, because 2
is a scalar primitive, a
holds one initial copy of that value, and b
is assigned another copy of the value. When changing b
, you are in no way changing the value in a
.
But both c
and d
are separate references to the same shared value [1,2,3]
, which is a compound value. It's important to note that neither c
nor d
more "owns" the [1,2,3]
value -- both are just equal peer references to the value. So, when using either reference to modify (.push(4)
) the actual shared array
value itself, it's affecting just the one shared value, and both references will reference the newly modified value [1,2,3,4]
.
var a = [1,2,3];
var b = a;
a; // [1,2,3]
b; // [1,2,3]
// later
b = [4,5,6];
a; // [1,2,3]
b; // [4,5,6]
When we make the assignment b = [4,5,6]
, we are doing absolutely nothing to affect where a
is still referencing ([1,2,3]
). To do that, b
would have to be a pointer to a
rather than a reference to the array
-- but no such capability exists in JS!
function foo(x) {
x.push( 4 );
x; // [1,2,3,4]
// later
x = [4,5,6];
x.push( 7 );
x; // [4,5,6,7]
}
var a = [1,2,3];
foo( a );
a; // [1,2,3,4] not [4,5,6,7]
When we pass in the argument a
, it assigns a copy of the a
reference to x
. x
and a
are separate references pointing at the same [1,2,3]
value. Now, inside the function, we can use that reference to mutate the value itself (push(4)
). But when we make the assignment x = [4,5,6]
, this is in no way affecting where the initial reference a
is pointing -- still points at the (now modified) [1,2,3,4]
value.
To effectively pass a compound value (like an array
) by value-copy, you need to manually make a copy of it, so that the reference passed doesn't still point to the original. For example:
foo( a.slice() );
Compound value (object, array, etc) that can be passed by reference-copy
function foo(wrapper) {
wrapper.a = 42;
}
var obj = {
a: 2
};
foo( obj );
obj.a; // 42
Here, obj
acts as a wrapper for the scalar primitive property a
. When passed to foo(..)
, a copy of the obj
reference is passed in and set to the wrapper
parameter. We now can use the wrapper
reference to access the shared object, and update its property. After the function finishes, obj.a
will see the updated value 42
.
You need to be wary of XSS when doing stuff like this:
document.getElementById('<%= Label1.ClientID %>').style.display
The chances are that no-one will be able to tamper with the ClientID of Label1 in this instance, but just to be on the safe side you might want pass it's value through one of the AntiXss library's methods:
document.getElementById('<%= AntiXss.JavaScriptEncode(Label1.ClientID) %>').style.display
I think what you are looking for is iter_swap
which you can find also in <algorithm>
.
all you need to do is just pass two iterators each pointing at one of the elements you want to exchange.
since you have the position of the two elements, you can do something like this:
// assuming your vector is called v
iter_swap(v.begin() + position, v.begin() + next_position);
// position, next_position are the indices of the elements you want to swap
You can take advantage of the fact that span
is an inline element
span{
word-spacing:10px;
}
However, this solution will break if you have more than one word of text in your span
IE can set username and password proxies, so maybe setting it there and import does work
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /t REG_DWORD /d 1
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyServer /t REG_SZ /d name:port
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyUser /t REG_SZ /d username
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyPass /t REG_SZ /d password
netsh winhttp import proxy source=ie
On versions mysql 5.6.5 and newer, you can use precise datetimes and set default values as well. There is a subtle bit though, which is to pass in the precision value to both the datetime and the NOW() function call.
This Example Works:
ALTER TABLE my_table MODIFY created datetime(6) NOT NULL DEFAULT NOW(6);
This Example Does not Work:
ALTER TABLE my_table MODIFY created datetime(6) NOT NULL DEFAULT NOW();
You can get a useful string without having to touch the registry or reference assemblies which may or may not be loaded. mscorlib.dll and other System assemblies have AssemblyFileVersionAttribute defined, and it seems to be unique for each version of .NET, based on the reference assemblies provided with Visual Studio.
string version = (typeof(string).Assembly
.GetCustomAttributes(typeof(AssemblyFileVersionAttribute), false)
.FirstOrDefault() as AssemblyFileVersionAttribute)?.Version;
Version 4.5 is a bit off, because it's marked 4.0 in that version, but 4.6 onward appear to have the minor version matching at least. Doing it this way seems like it would be more future proof than depending on some installer registry key and having to compare against a fixed set of values.
I found the reference assemblies here:
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework
Where I got the following versions:
4.0 = 4.0.30319.1
4.5 = 4.0.30319.18020
4.5.1 = 4.0.30319.18402
4.5.2 = 4.0.30319.34211
4.6 = 4.6.81.0
4.6.1 = 4.6.1055.0
4.7.2 = 4.7.3062.0
4.8 = 4.8.3761.0
If you are planing to use the same image for retina and non-retina screen then here is the solution. Say that you have a image of 200x200
and have two icons in top row and two icon in bottom row. So, it's four quadrants.
.sprite-of-icons {
background: url("../images/icons-in-four-quad-of-200by200.png") no-repeat;
background-size: 100px 100px /* Scale it down to 50% rather using 200x200 */
}
.sp-logo-1 { background-position: 0 0; }
/* Reduce positioning of the icons down to 50% rather using -50px */
.sp-logo-2 { background-position: -25px 0 }
.sp-logo-3 { background-position: 0 -25px }
.sp-logo-3 { background-position: -25px -25px }
Scaling and positioning of the sprite icons to 50% than actual value, you can get the expected result.
Another handy SCSS mixin solution by Ryan Benhase.
/****************************
HIGH PPI DISPLAY BACKGROUNDS
*****************************/
@mixin background-2x($path, $ext: "png", $w: auto, $h: auto, $pos: left top, $repeat: no-repeat) {
$at1x_path: "#{$path}.#{$ext}";
$at2x_path: "#{$path}@2x.#{$ext}";
background-image: url("#{$at1x_path}");
background-size: $w $h;
background-position: $pos;
background-repeat: $repeat;
@media all and (-webkit-min-device-pixel-ratio : 1.5),
all and (-o-min-device-pixel-ratio: 3/2),
all and (min--moz-device-pixel-ratio: 1.5),
all and (min-device-pixel-ratio: 1.5) {
background-image: url("#{$at2x_path}");
}
}
div.background {
@include background-2x( 'path/to/image', 'jpg', 100px, 100px, center center, repeat-x );
}
For more info about above mixin READ HERE.
Tim Lentine's answer seems to be true even in the full release. There is just one other thing I would like to mention.
If you complete your import without going into "Advanced..." and saving the spec, but you do save the import for reuse at the end of the wizard (new feature AFAIK), you will not be able to go back and edit that spec. It is built into the "Saved Import". This may be what Knox was referring to.
You can, however, do a partial work around:
I voted for Josh's answer, but would like to add one more to the list:
System.InvalidOperationException should be thrown if the argument is valid, but the object is in a state where the argument shouldn't be used.
Update Taken from MSDN:
InvalidOperationException is used in cases when the failure to invoke a method is caused by reasons other than invalid arguments.
Let's say that your object has a PerformAction(enmSomeAction action) method, valid enmSomeActions are Open and Close. If you call PerformAction(enmSomeAction.Open) twice in a row then the second call should throw the InvalidOperationException (since the arugment was valid, but not for the current state of the control)
Since you're already doing the right thing by programming defensively I have one other exception to mention is ObjectDisposedException. If your object implements IDisposable then you should always have a class variable tracking the disposed state; if your object has been disposed and a method gets called on it you should raise the ObjectDisposedException:
public void SomeMethod()
{
If (m_Disposed) {
throw new ObjectDisposedException("Object has been disposed")
}
// ... Normal execution code
}
Update: To answer your follow-up: It is a bit of an ambiguous situation, and is made a little more complicated by a generic (not in the .NET Generics sense) data type being used to represent a specific set of data; an enum or other strongly typed object would be a more ideal fit--but we don't always have that control.
I would personally lean towards the ArgumentOutOfRangeException and provide a message that indicates the valid values are 1-12. My reasoning is that when you talk about months, assuming all integer representations of months are valid, then you are expecting a value in the range of 1-12. If only certain months (like months that had 31 days) were valid then you would not be dealing with a Range per-se and I would throw a generic ArgumentException that indicated the valid values, and I would also document them in the method's comments.
Install six, the Python 2 and 3 Compatibility Library:
$ sudo -H pip install six
Use it:
from six.moves.urllib.parse import urlparse
(edit: I deleted the other answer)
Walrus operator (assignment expressions added to python 3.8) and while-loop-else-clause can do it more pythonic:
myScore = 0
while ans := input("Roll...").lower() == "r":
# ... do something
else:
print("Now I'll see if I can break your score...")
<?php
ini_set("SMTP", "aspmx.l.google.com");
ini_set("sendmail_from", "[email protected]");
$message = "The mail message was sent with the following mail setting:\r\nSMTP = aspmx.l.google.com\r\nsmtp_port = 25\r\nsendmail_from = [email protected]";
$headers = "From: [email protected]";
mail("[email protected]", "Testing", $message, $headers);
echo "Check your email now....<BR/>";
?>
or, for more details, read on.
Class Meta is the place in your code logic where your model.fields MEET With your form.widgets. So under Class Meta() you create the link between your model' fields and the different widgets you want to have in your form.
Instead of the *
selector you can use the :not(selector)
with the >
selector and set something that definitely wont be a child.
Edit: I thought it would be faster but it turns out I was wrong. Disregard.
Example:
.container > :not(marquee){
color:red;
}
<div class="container">
<p></p>
<span></span>
<div>
Have you looked into ControlsFx Popover control.
import org.controlsfx.control.PopOver;
import org.controlsfx.control.PopOver.ArrowLocation;
private PopOver item;
final Scene scene = addItemButton.getScene();
final Point2D windowCoord = new Point2D(scene.getWindow()
.getX(), scene.getWindow().getY());
final Point2D sceneCoord = new Point2D(scene.getX(), scene.
getY());
final Point2D nodeCoord = addItemButton.localToScene(0.0,
0.0);
final double clickX = Math.round(windowCoord.getX()
+ sceneCoord.getY() + nodeCoord.getX());
final double clickY = Math.round(windowCoord.getY()
+ sceneCoord.getY() + nodeCoord.getY());
item.setContentNode(addItemScreen);
item.setArrowLocation(ArrowLocation.BOTTOM_LEFT);
item.setCornerRadius(4);
item.setDetachedTitle("Add New Item");
item.show(addItemButton.getParent(), clickX, clickY);
This is only an example but a PopOver sounds like it could accomplish what you want. Check out the documentation for more info.
Important note: ControlsFX will only work on JavaFX 8.0 b118 or later.
It means it matches to every p
element which is immediately adjacent
www.snoopcode.com/css/examples/css-adjacent-sibling-selector
To use the java -jar selenium-server-standalone-2.45.0.jar
command-line tool you need to install a JDK.
You need to download and install the JDK and the standalone selenium server.
krtek's method has some wrong,I tested this
var startDay = 0;
var weekStart = new Date(today.getDate() - (7 + today.getDay() - startDay) % 7);
var weekEnd = new Date(today.getDate() + (6 - today.getDay() - startDay) % 7);
it works
Here is my solution, there is no way to use momemt.js.Here is DataTable with Two DatePickers for DateRange (To and From) Filter.
$.fn.dataTable.ext.search.push(
function (settings, data, dataIndex) {
var min = $('#min').datepicker("getDate");
var max = $('#max').datepicker("getDate");
var startDate = new Date(data[4]);
if (min == null && max == null) { return true; }
if (min == null && startDate <= max) { return true; }
if (max == null && startDate >= min) { return true; }
if (startDate <= max && startDate >= min) { return true; }
return false;
}
);
Use String.format (or java.util.Formatter):
Timestamp timestamp = ...
String.format("%1$TD %1$TT", timestamp)
EDIT:
please see the documentation of Formatter to know what TD and TT means: click on java.util.Formatter
The first 'T' stands for:
't', 'T' date/time Prefix for date and time conversion characters.
and the character following that 'T':
'T' Time formatted for the 24-hour clock as "%tH:%tM:%tS".
'D' Date formatted as "%tm/%td/%ty".
$(document).height() seems to do the trick and gives the total height including the area which is only visible through scrolling.
Another simpler solution is to use this formula in the conditional formatting (apply to column A):
=COUNTIF(B:B,A1)
Regards!
According to http://caniuse.com/#feat=flexbox:
"IE10 and IE11 default values for flex
are 0 0 auto
rather than 0 1 auto
, as per the draft spec, as of September 2013"
So in plain words, if somewhere in your CSS you have something like this: flex:1
, that is not translated the same way in all browsers. Try changing it to 1 0 0
and I believe you will immediately see that it -kinda- works.
The problem is that this solution will probably mess up firefox, but then you can use some hacks to target only Mozilla and change it back:
@-moz-document url-prefix() {
#flexible-content{
flex: 1;
}
}
Since flexbox
is a W3C Candidate and not official, browsers tend to give different results, but I guess that will change in the immediate future.
If someone has a better answer I would like to know!
Nope, you can't click ‘through’ an element. You can get the co-ordinates of the click and try to work out what element was underneath the clicked element, but this is really tedious for browsers that don't have document.elementFromPoint
. Then you still have to emulate the default action of clicking, which isn't necessarily trivial depending on what elements you have under there.
Since you've got a fully-transparent window area, you'll probably be better off implementing it as separate border elements around the outside, leaving the centre area free of obstruction so you can really just click straight through.
Downloading Wget is not necessary; the .NET Framework has web client classes built in.
$wc = New-Object system.Net.WebClient;
$sms = Read-Host "Enter SMS text";
$sms = [System.Web.HttpUtility]::UrlEncode($sms);
$smsResult = $wc.downloadString("http://smsserver/SNSManager/msgSend.jsp?uid&to=smartsms:*+001XXXXXX&msg=$sms&encoding=windows-1255")
I couldn't get .destroy() to work either so this is what I'm doing. The chart_parent div is where I want the canvas to show up. I need the canvas to resize each time, so this answer is an extension of the above one.
HTML:
<div class="main_section" >
<div id="chart_parent"></div>
<div id="legend"></div>
</div>
JQuery:
$('#chart').remove(); // this is my <canvas> element
$('#chart_parent').append('<label for = "chart">Total<br /><canvas class="chart" id="chart" width='+$('#chart_parent').width()+'><canvas></label>');
Strictly speaking, Iterable does not have size. Think data structure like a cycle.
And think about following Iterable instance, No size:
new Iterable(){
@Override public Iterator iterator() {
return new Iterator(){
@Override
public boolean hasNext() {
return isExternalSystemAvailble();
}
@Override
public Object next() {
return fetchDataFromExternalSystem();
}};
}};
I'll try to keep this short, I've done this a few months ago for a game I was trying to build, it does a UDP "Client-Server" connection that acts like TCP, you can send (message) (message + object) using this. I've done some testing with it and it works just fine, feel free to modify it if needed.
Constants can be declare outside of classes and use within your class. Otherwise the get
property is a nice workaround
const MY_CONSTANT: string = "wazzup";
export class MyClass {
public myFunction() {
alert(MY_CONSTANT);
}
}
Path.GetFileNameWithoutExtension(file);
This returns the file name only without the extension type. You can also change it so you get both name and the type of file
Path.GetFileName(FileName);
source:https://msdn.microsoft.com/en-us/library/system.io.path(v=vs.110).aspx
You can clean cache in React Native >= 0.50 and npm > 5 :
watchman watch-del-all &&
rm -rf $TMPDIR/react-native-packager-cache-* &&
rm -rf $TMPDIR/metro-bundler-cache-* &&
rm -rf node_modules/
&& npm cache clean --force &&
npm install &&
npm start -- --reset-cache
Apart from cleaning npm cache you might need to reset simulator or clean build etc.
On Mac OS you need to export ~/.local/bin
inside your $PATH
variable.
# Edit the bash profile:
$ vim ~/.bash_profile
# Add this line inside ~/.bash_profile:
export PATH=$PATH:~/.local/bin
# Update the source:
$ source ~/.bash_profile
# Open Jupyter:
$ jupyter notebook
I achieved the goal where I have multiple images to insert in the DB as
INSERT INTO [dbo].[User]
([Name]
,[Image1]
,[Age]
,[Image2]
,[GroupId]
,[GroupName])
VALUES
('Umar'
, (SELECT BulkColumn
FROM Openrowset( Bulk 'path-to-file.jpg', Single_Blob) as Image1)
,26
,(SELECT BulkColumn
FROM Openrowset( Bulk 'path-to-file.jpg', Single_Blob) as Image2)
,'Group123'
,'GroupABC')
closest()
only looks for parents, I'm guessing what you really want is .find()
$(this).closest('.row').children('.column').find('.inputQty').val();
Is there a parameter and the "Bunch of code" returns a function?
var a = function(x) { return function() { document.write(x); } }(something);
Closure. The value of something
gets used by the function assigned to a
. something
could have some varying value (for loop) and every time a has a new function.
You can return an object of a Class in Java.
If you are returning more than 1 value that are related, then it makes sense to encapsulate them into a class and then return an object of that class.
If you want to return unrelated values, then you can use Java's built-in container classes like Map, List, Set etc. Check the java.util package's JavaDoc for more details.
byte[] data; using(Stream inputStream=file.InputStream) { MemoryStream memoryStream = inputStream as MemoryStream; if (memoryStream == null) { memoryStream = new MemoryStream(); inputStream.CopyTo(memoryStream); } data = memoryStream.ToArray(); }
They are identical. JPG is simply a holdover from the days of DOS when file extensions were required to be 3 characters long. You can find out more information about the JPEG standard here. A question very similar to this one was asked over at SuperUser, where the accepted answer should give you some more detailed information.
It is not listed as a function in dplyr (yet): http://cran.rstudio.org/web/packages/dplyr/dplyr.pdf
The function below works (almost) the same if you don't want to load both plyr and dplyr
rename <- function(dat, oldnames, newnames) {
datnames <- colnames(dat)
datnames[which(datnames %in% oldnames)] <- newnames
colnames(dat) <- datnames
dat
}
dat <- rename(mtcars,c("mpg","cyl"), c("mympg","mycyl"))
head(dat)
mympg mycyl disp hp drat wt qsec vs am gear carb
Mazda RX4 21.0 6 160 110 3.90 2.620 16.46 0 1 4 4
Mazda RX4 Wag 21.0 6 160 110 3.90 2.875 17.02 0 1 4 4
Datsun 710 22.8 4 108 93 3.85 2.320 18.61 1 1 4 1
Hornet 4 Drive 21.4 6 258 110 3.08 3.215 19.44 1 0 3 1
Hornet Sportabout 18.7 8 360 175 3.15 3.440 17.02 0 0 3 2
Valiant 18.1 6 225 105 2.76 3.460 20.22 1 0 3 1
Edit: The comment by Romain produces the following (note that the changes function requires dplyr .1.1)
> dplyr:::changes(mtcars, dat)
Changed variables:
old new
disp 0x108b4b0e0 0x108b4e370
hp 0x108b4b210 0x108b4e4a0
drat 0x108b4b340 0x108b4e5d0
wt 0x108b4b470 0x108b4e700
qsec 0x108b4b5a0 0x108b4e830
vs 0x108b4b6d0 0x108b4e960
am 0x108b4b800 0x108b4ea90
gear 0x108b4b930 0x108b4ebc0
carb 0x108b4ba60 0x108b4ecf0
mpg 0x1033ee7c0
cyl 0x10331d3d0
mympg 0x108b4e110
mycyl 0x108b4e240
Changed attributes:
old new
names 0x10c100558 0x10c2ea3f0
row.names 0x108b4bb90 0x108b4ee20
class 0x103bd8988 0x103bd8f58
Your onClick
request:
<span class="A" onclick="var state = this.className.indexOf('A') > -1; $(this).toggleClass('A', !state).toggleClass('B', state);">Click Me</span>
Try it: https://jsfiddle.net/v15q6b5y/
Just the JS à la jQuery:
$('.selector').toggleClass('A', !state).toggleClass('B', state);
I was getting the same error in Visual Studio 2017 and to fix it just added #define _CRT_SECURE_NO_WARNINGS
after #include "pch.h"
#include "pch.h"
#define _CRT_SECURE_NO_WARNINGS
....
If you can avoid the need for concurrent writes to a single file, it sounds like you do not need a database to store the chat messages.
Just append the conversation to a text file (1 file per user\conversation). and have a directory/ file structure
Here's a simplified view of the file structure:
chat-1-bob.txt
201101011029, hi
201101011030, fine thanks.
chat-1-jen.txt
201101011030, how are you?
201101011035, have you spoken to bill recently?
chat-2-bob.txt
201101021200, hi
201101021222, about 12:22
chat-2-bill.txt
201101021201, Hey Bob,
201101021203, what time do you call this?
You would then only need to store the userid, conversation id (guid ?) & a reference to the file name.
I think you will find it hard to get a more simple scaleable solution.
You can use LOAD_FILE
to get the data too see: http://dev.mysql.com/doc/refman/5.0/en/string-functions.html
If you have a requirement to rebuild a conversation you will need to put a value (date time) alongside your sent chat message (in the file) to allow you to merge & sort the files, but at this point it is probably a good idea to consider using a database.
If android:largeHeap="true" didn't work for you then
1:
Image Compression. I am using this website
2:
Convert images to mdpi,hdpi, xhdpi, xxhdpi, xxxhdpi. I am using this webiste
Don't remove android:largeHeap="true"!
To concatenate strings, use the +
operator.
To insert data into a URI, encode it for URIs.
Bad:
var url = "http://localhost:8080/login?cid='username'&pwd='password'"
Good:
var url_safe_username = encodeURIComponent(username);
var url_safe_password = encodeURIComponent(password);
var url = "http://localhost:8080/login?cid=" + url_safe_username + "&pwd=" + url_safe_password;
The server will have to process the query string to make use of the data. You can't assign to arbitrary form fields.
… but don't trigger new windows or pass credentials in the URI (where they are exposed to over the shoulder attacks and may be logged).
You can think of WORKDIR
like a cd
inside the container (it affects commands that come later in the Dockerfile, like the RUN
command). If you removed WORKDIR
in your example above, RUN npm install
wouldn't work because you would not be in the /usr/src/app
directory inside your container.
I don't see how this would be related to where you put your Dockerfile (since your Dockerfile location on the host machine has nothing to do with the pwd inside the container). You can put the Dockerfile wherever you'd like in your project. However, the first argument to COPY
is a relative path, so if you move your Dockerfile you may need to update those COPY
commands.
For people checking the existence to drop View
use this
From SQL Server 2016 CTP3
you can use new DIE statements instead of big IF
wrappers
syntax
DROP VIEW [ IF EXISTS ] [ schema_name . ] view_name [ ...,n ] [ ; ]
Query :
DROP VIEW IF EXISTS view_name
More info here
You can use dangerouslySetInnerHTML, e.g.
render: function() {
return (
<div className="content" dangerouslySetInnerHTML={{__html: thisIsMyCopy}}></div>
);
}
I faced the same problem during 2 days and I found the solution, and it's elegant after googling a lot. I needed xss Ajax for some widget clients which pull datastream from tiers websites to my Rails app. here's how I did.
It's possible if you believe. Hehe. try this code.
public function add_new_enum($new_value)
{
$table="product";
$column="category";
$row = $this->db->query("SELECT COLUMN_TYPE FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = ? AND COLUMN_NAME = ?", array($table, $column))->row_array();
$old_category = array();
$new_category="";
foreach (explode(',', str_replace("'", '', substr($row['COLUMN_TYPE'], 5, (strlen($row['COLUMN_TYPE']) - 6)))) as $val)
{
//getting the old category first
$old_category[$val] = $val;
$new_category.="'".$old_category[$val]."'".",";
}
//after the end of foreach, add the $new_value to $new_category
$new_category.="'".$new_value."'";
//Then alter the table column with the new enum
$this->db->query("ALTER TABLE product CHANGE category category ENUM($new_category)");
}
I installed WAMPServer 2.5 (32-bit) and also encountered an oci_connect error. I also had Oracle 11g client (32-bit) installed. The common fix I read in other posts was to alter the php.ini file in your C:\wamp\bin\php\php5.5.12 directory, however this never worked for me. Maybe I misunderstood, but I found that if you alter the php.ini file in the C:\wamp\bin\apache\apache2.4.9 directory instead, you will get the results you want. The only thing I altered in the apache php.ini file was remove the semicolon to extension=php_oci8_11g.dll
in order to enable it. I then restarted all the services and it now works! I hope this works for you.
A good place to start learning how to manipulate pages s the Mozilla Developer Network, they've got a great tutorial about the DOM.
One way you could do it is with document.write
, which writes html at the end of the currently loaded part of the document - in this case, after the script tag.
<script>
var name = prompt("What's your name?");
document.write("<p>" + name.length + "</p>");
</script>
But it's not a very clean way of doing it. Keep document.write
for testing purpose because in most cases you can't predict where it will append the content.
EDIT: Here, the "clever" way would be to do something like this:
<script type="text/javascript">
window.addEventListener("load", function(e) {
var name = prompt("What's your name?") || "";
var text = document.createTextNode(name.length);
document.getElementById("nameLength").appendChild(text);
});
</script>
<p id="nameLength"></p>
But people are generally lazy and you'll often see .innerHTML = "something"
instead of a text node.
As of AngularJS 1.2 there's a directive called ng-repeat-start
that does exactly what you ask for. See my answer in this question for a description of how to use it.
You can use java.net.HttpUrlConnection.
Example (from here), with improvements. Included in case of link rot:
public static String executePost(String targetURL, String urlParameters) {
HttpURLConnection connection = null;
try {
//Create connection
URL url = new URL(targetURL);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type",
"application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length",
Integer.toString(urlParameters.getBytes().length));
connection.setRequestProperty("Content-Language", "en-US");
connection.setUseCaches(false);
connection.setDoOutput(true);
//Send request
DataOutputStream wr = new DataOutputStream (
connection.getOutputStream());
wr.writeBytes(urlParameters);
wr.close();
//Get Response
InputStream is = connection.getInputStream();
BufferedReader rd = new BufferedReader(new InputStreamReader(is));
StringBuilder response = new StringBuilder(); // or StringBuffer if Java version 5+
String line;
while ((line = rd.readLine()) != null) {
response.append(line);
response.append('\r');
}
rd.close();
return response.toString();
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if (connection != null) {
connection.disconnect();
}
}
}
use lines
for the second one:
plot(density(MyData$Column1))
lines(density(MyData$Column2))
make sure the limits of the first plot are suitable, though.
According to version PostgreSQL 9.0 and above you can use the aggregate function called string_agg. Your new SQL should look something like this:
SELECT company_id, string_agg(employee, ', ')
FROM mytable GROUP BY company_id;
hasOwnProperty.call(obj, key);
The underscore.js way -
if(_.has(this.options, 'login')){
//key 'login' exists in this.options
}
_.has = function(obj, key) {
return hasOwnProperty.call(obj, key);
};
When trying to set up a .NET Core 1.0 website I got this error, and tried everything else I could find with no luck, including checking the web.config file, IIS_IUSRS permissions, IIS URL rewrite module, etc. In the end, I installed DotNetCore.1.0.0-WindowsHosting.exe from this page: https://www.microsoft.com/net/download and it started working right away.
Specific link to download: https://go.microsoft.com/fwlink/?LinkId=817246
To read a file from internal storage:
Call openFileInput() and pass it the name of the file to read. This returns a FileInputStream. Read bytes from the file with read(). Then close the stream with close().
code::
StringBuilder sb = new StringBuilder();
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line).append("\n");
}
is.close();
} catch(OutOfMemoryError om){
om.printStackTrace();
} catch(Exception ex){
ex.printStackTrace();
}
String result = sb.toString();
I'm not able to comment divega's post, but among the different solutions presented here, divega's solution produces the best SQL. Both performance wise and length wise. I just checked with SQL Server Profiler and by looking at the execution plan (with "SET STATISTICS PROFILE ON").
I had this issue with a WinForms Project using VS 2015. My solution was:
I might have read all questions about this for two days. None of the answers worked for me.
In my case I was lacking cURL module for PHP.
Be aware that, just because you can use cURL on terminal, it does not mean that you have PHP cURL module and it is active.
There was no error showing about it. Not even on /var/log/apache2/error.log
How to install module: (replace version number for the apropiated one)
sudo apt install php7.2-curl
sudo service apache2 reload
You can also apply multiple transforms using an extra layer of markup e.g.:
<h3 class="rotated-heading">
<span class="scaled-up">Hey!</span>
</h3>
<style type="text/css">
.rotated-heading
{
transform: rotate(10deg);
}
.scaled-up
{
transform: scale(1.5);
}
</style>
This can be really useful when animating elements with transforms using Javascript.
I found the solution to my problem. In my ~/.bashrc
:
export PATH=${PATH}:/path/to/android-sdk/tools
However adb
is not located in the android-sdk/tools/
, rather in android-sdk/platform-tools/
.
So I added the following
export PATH=${PATH}:/path/to/android-sdk/tools:/path/to/android-sdk/platform-tools
And that solved the problem for me.
You could also do something as follow
public enum DAY {MON, TUES, WED, THU, FRI, SAT, SUN};
EnumSet.allOf(DAY.class).stream().map(e -> e.name()).collect(Collectors.toList())
or
EnumSet.allOf(DAY.class).stream().map(DAY::name).collect(Collectors.toList())
The main reason why I stumbled across this question is that I wanted to write a generic validator that validates whether a given string enum name is valid for a given enum type (Sharing in case anyone finds useful).
For the validation, I had to use Apache's EnumUtils
library since the type of enum is not known at compile time.
@SuppressWarnings({ "unchecked", "rawtypes" })
public static void isValidEnumsValid(Class clazz, Set<String> enumNames) {
Set<String> notAllowedNames = enumNames.stream()
.filter(enumName -> !EnumUtils.isValidEnum(clazz, enumName))
.collect(Collectors.toSet());
if (notAllowedNames.size() > 0) {
String validEnumNames = (String) EnumUtils.getEnumMap(clazz).keySet().stream()
.collect(Collectors.joining(", "));
throw new IllegalArgumentException("The requested values '" + notAllowedNames.stream()
.collect(Collectors.joining(",")) + "' are not valid. Please select one more (case-sensitive) "
+ "of the following : " + validEnumNames);
}
}
I was too lazy to write an enum annotation validator as shown in here https://stackoverflow.com/a/51109419/1225551
I solved this by assigning a ref to the component and then checking if the ref exists before setting the state:
myMethod(){
if (this.refs.myRef)
this.setState({myVar: true});
}
render() {
return (
<div ref="myRef">
{this.state.myVar}
</div>
);
}
And lately, since I am using mostly functional components, I am using this pattern:
const Component = () => {
const ref = React.useRef(null);
const [count, setCount] = React.useState(0);
const increment = () => {
setTimeout(() => { // usually fetching API data here
if (ref.current !== null) {
setCount((count) => count + 1);
}
}, 100);
};
return (
<button onClick={increment} ref={ref}>
Async Increment {count}
</button>
);
};