From what it looks like you are trying to do, toggle might better solve your problem.
EDIT: Sorry, toggle is just visibility, I don't think it will help your bg color toggling.
But here you go:
var box = $("#blackbox");
box.css('background') == 'pink' ? box.css({'background':'black'}) : box.css({'background':'pink'});
This is the best solution IMHO. It covers BOTH null
and empty
scenario, as is easy to understand when reading the code. All you need to know is that .getProperty
returns a null
when system prop is not set:
String DEFAULT_XYZ = System.getProperty("user.home") + "/xyz";
String PROP = Optional.ofNullable(System.getProperty("XYZ"))
.filter(s -> !s.isEmpty())
.orElse(DEFAULT_XYZ);
Use lambda function instead of ternary operator
Example 1
to give the max int
package main
func main() {
println( func(a,b int) int {if a>b {return a} else {return b} }(1,2) )
}
Example 2
Suppose you have this must(err error)
function to handle errors and you want to use it when a condition isn't fulfilled.
(enjoy at https://play.golang.com/p/COXyo0qIslP)
package main
import (
"errors"
"log"
"os"
)
// must is a little helper to handle errors. If passed error != nil, it simply panics.
func must(err error) {
if err != nil {
log.Println(err)
panic(err)
}
}
func main() {
tmpDir := os.TempDir()
// Make sure os.TempDir didn't return empty string
// reusing my favourite `must` helper
// Isn't that kinda creepy now though?
must(func() error {
var err error
if len(tmpDir) > 0 {
err = nil
} else {
err = errors.New("os.TempDir is empty")
}
return err
}()) // Don't forget that empty parentheses to invoke the lambda.
println("We happy with", tmpDir)
}
And you can try this:
public static Bitmap mirrorBitmap(Bitmap bInput)
{
Bitmap bOutput;
Matrix matrix = new Matrix();
matrix.preScale(-1.0f, 1.0f);
bOutput = Bitmap.createBitmap(bInput, 0, 0, bInput.getWidth(), bInput.getHeight(), matrix, true);
return bOutput;
}
Here is one way...
(Get-Process powershell | select -First 1).Path
Here is possibly a better way, as it returns the first hit on the path, just like if you had ran Powershell from a command prompt...
(Get-Command powershell.exe).Definition
YES!....always style textarea using CSS and avoid the attributes, unless you need to support some very old agent that does not support style sheets. Otherwise, you have full power to use CSS. Below is my default CSS formatting for textarea that looks beautiful in any website. Customize it as you like. Comments are included below so you can see why I chose those CSS properties and values:
textarea {
display: inline-block;
margin: 0;
padding: .2em;
width: auto;
min-width: 30em;
/* The max-width "100%" value fixes a weird issue where width is too wide by default and extends beyond 100% of the parent in some agents. */
max-width: 100%;
/* Height "auto" will allow the text area to expand vertically in size with a horizontal scrollbar if pre-existing content is added to the box before rendering. Remove this if you want a pre-set height. Use "em" to match the font size set in the website. */
height: auto;
/* Use "em" to define the height based on the text size set in your website and the text rows in the box, not a static pixel value. */
min-height: 10em;
/* Do not use "border" in textareas unless you want to remove the 3D box most browsers assign and flatten the box design. */
/*border: 1px solid black;*/
cursor: text;
/* Some textareas have a light gray background by default anyway. */
background-color: #eee;
/* Overflow "auto" allows the box to start with no scrollbars but add them as content fills the box. */
overflow: auto;
/* Resize creates a tab in the lower right corner of textarea for most modern browsers and allows users to resize the box manually. Note: Resize isn't supported by most older agents and IE. */
resize: both;
}
In my "reset" element style sheet I set these values as defaults for "textarea" by default, which give all your textareas a nice look and feel with scrolling when detected, a resizing tab (non-IE browsers), and fixes for dimensions, including a height that allows the box to size itself based on existing content you put in it for the user and a width that does not break out beyond its parent containers limitations.
I had encountered exactly the same problem on my CI build server (running Bamboo), which doesn't install any Visual Studio IDE on it.
Without making any code changing for the build/test process (which I don't think is good solution), the best way is to copy the EntityFramework.SqlServer.dll
and paste it to C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\IDE
. (where your mstest running)
Problem solved!
A parent ViewGroup into which the fragment's View is to be inserted,
A third boolean telling whether the fragment's View as inflated from the layout XML file should be inserted into the parent ViewGroup.
In this case we pass false because the View will be attached to the parent ViewGroup elsewhere, by some of the Android code we call (in other words, behind our backs). When you pass false as last parameter to inflate(), the parent ViewGroup is still used for layout calculations of the inflated View, so you cannot pass null as parent ViewGroup .
View rootView = inflater.inflate(R.layout.fragment_photos, container, false);
So, You need to call rootView
in here
ListView lv = (ListView)rootView.findViewById(R.id.lv_contact);
Here is one that I have been using: -
[<1000000]0.00," KB";[<1000000000]0.00,," MB";0.00,,," GB"
Seems to work fine.
The easiest way to match both
^\([0-9]{3}\)[0-9]{3}-[0-9]{4}$
and
^[0-9]{3}-[0-9]{3}-[0-9]{4}$
is to use alternation ((...|...)
): specify them as two mostly-separate options:
^(\([0-9]{3}\)|[0-9]{3}-)[0-9]{3}-[0-9]{4}$
By the way, when Americans put the area code in parentheses, we actually put a space after that; for example, I'd write (123) 123-1234
, not (123)123-1234
. So you might want to write:
^(\([0-9]{3}\) |[0-9]{3}-)[0-9]{3}-[0-9]{4}$
(Though it's probably best to explicitly demonstrate the format that you expect phone numbers to be in.)
You can use
var modal_template_html = $.trim($('#modal_template').html());
var template = $(modal_template_html);
If you already have the data "for (Parcelable currentHeadline : allHeadlines)," then why are you doing that in a separate thread?
You should poll the data in a separate thread, and when it's finished gathering it, then call your populateTables method on the UI thread:
private void populateTable() {
runOnUiThread(new Runnable(){
public void run() {
//If there are stories, add them to the table
for (Parcelable currentHeadline : allHeadlines) {
addHeadlineToTable(currentHeadline);
}
try {
dialog.dismiss();
} catch (final Exception ex) {
Log.i("---","Exception in thread");
}
}
});
}
You can also have a look at the method findText(const QString & text) from QComboBox; it returns the index of the element which contains the given text, (-1 if not found). The advantage of using this method is that you don't need to set the second parameter when you add an item.
Here is a little example :
/* Create the comboBox */
QComboBox *_comboBox = new QComboBox;
/* Create the ComboBox elements list (here we use QString) */
QList<QString> stringsList;
stringsList.append("Text1");
stringsList.append("Text3");
stringsList.append("Text4");
stringsList.append("Text2");
stringsList.append("Text5");
/* Populate the comboBox */
_comboBox->addItems(stringsList);
/* Create the label */
QLabel *label = new QLabel;
/* Search for "Text2" text */
int index = _comboBox->findText("Text2");
if( index == -1 )
label->setText("Text2 not found !");
else
label->setText(QString("Text2's index is ")
.append(QString::number(_comboBox->findText("Text2"))));
/* setup layout */
QVBoxLayout *layout = new QVBoxLayout(this);
layout->addWidget(_comboBox);
layout->addWidget(label);
BLOB stores binary data which are more than 2 GB. Max size for BLOB is 4 GB. Binary data means unstructured data i.e images audio files vedio files digital signature
Text is used to store large string.
Wrap them both in a container like so:
.container{ _x000D_
float:left; _x000D_
width:100%; _x000D_
}_x000D_
.container div{ _x000D_
float:left;_x000D_
}
_x000D_
<div class='container'>_x000D_
<div>_x000D_
<span>source list</span>_x000D_
<select size="10">_x000D_
<option />_x000D_
<option />_x000D_
<option />_x000D_
</select>_x000D_
</div>_x000D_
<div>_x000D_
<span>destination list</span>_x000D_
<select size="10">_x000D_
<option />_x000D_
<option />_x000D_
<option />_x000D_
</select>_x000D_
</div>_x000D_
</div>
_x000D_
If you don't want to use sessions, the only thing you can do is POST to the same page. Which IMO is the best solution anyway.
// form.php
<?php
if (!empty($_POST['submit'])) {
// validate
if ($allGood) {
// put data into database or whatever needs to be done
header('Location: nextpage.php');
exit;
}
}
?>
<form action="form.php">
<input name="foo" value="<?php if (!empty($_POST['foo'])) echo htmlentities($_POST['foo']); ?>">
...
</form>
This can be made more elegant, but you get the idea...
There's a whole page of the Django documentation devoted to this, well indexed from the contents page.
As that page states, you need to do:
my_obj.categories.add(fragmentCategory.objects.get(id=1))
or
my_obj.categories.create(name='val1')
You need to set the height of html
to 100%
body {
background-image:url("../images/myImage.jpg");
background-repeat: no-repeat;
background-size: 100% 100%;
}
html {
height: 100%
}
I was able to use Find & Replace with the "Find what:" input field set to:
" * "
(space asterisk space with no double-quotes)
and "Replace with:" set to:
""
(nothing)
You mean this?
from string import punctuation, digits
takeout = punctuation + digits
turnthis = "(fjskl) 234 = -345 089 abcdef"
turnthis = turnthis.translate(None, takeout)[::-1]
print turnthis
The border-radius property is supported in IE9+, Firefox 4+, Chrome, Safari 5+, and Opera, because it is CSS3 property. so, you could use css3pie
first check this demo in IE 8 and download it from here write your css rule like this
#myAwesomeElement {
border: 1px solid #999;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border-radius: 10px;
behavior: url(path/to/pie_files/PIE.htc);
}
note: added behavior: url(path/to/pie_files/PIE.htc);
in the above rule. within url() you need to specify your PIE.htc file location
It's easy to create this yourself
In your layout include the following ProgressBar
with a specific drawable (note you should get the width from dimensions instead). The max value is important here:
<ProgressBar
android:id="@+id/progressBar"
style="?android:attr/progressBarStyleHorizontal"
android:layout_width="150dp"
android:layout_height="150dp"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:max="500"
android:progress="0"
android:progressDrawable="@drawable/circular" />
Now create the drawable in your resources with the following shape. Play with the radius (you can use innerRadius
instead of innerRadiusRatio
) and thickness values.
circular (Pre Lollipop OR API Level < 21)
<shape
android:innerRadiusRatio="2.3"
android:shape="ring"
android:thickness="3.8sp" >
<solid android:color="@color/yourColor" />
</shape>
circular ( >= Lollipop OR API Level >= 21)
<shape
android:useLevel="true"
android:innerRadiusRatio="2.3"
android:shape="ring"
android:thickness="3.8sp" >
<solid android:color="@color/yourColor" />
</shape>
useLevel is "false" by default in API Level 21 (Lollipop) .
Start Animation
Next in your code use an ObjectAnimator
to animate the progress field of the ProgessBar
of your layout.
ProgressBar progressBar = (ProgressBar) view.findViewById(R.id.progressBar);
ObjectAnimator animation = ObjectAnimator.ofInt(progressBar, "progress", 0, 500); // see this max value coming back here, we animate towards that value
animation.setDuration(5000); // in milliseconds
animation.setInterpolator(new DecelerateInterpolator());
animation.start();
Stop Animation
progressBar.clearAnimation();
P.S. unlike examples above, it give smooth animation.
While this doesn't allow you to get a datepicker ui, Mozilla does allow the use of pattern, so you can at least get date validation with something like this:
pattern='(?:19|20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))'
Ultimately I agree with @SuperUberDuper in that Mozilla is way behind on including this natively.
On red hat linux I just use echo :
echo $(cat /some/file/name)
This gives me all records of a file on just one line.
I required only one instance of the vertical padding, so I inserted this line in the appropriate place to avoid adding more to the css. <div style="margin-top:5px"></div>
Try this..
If jQuery is available, angular.element is an alias for the jQuery function.
var app = angular.module('myApp',[]);
app.controller('Ctrl', function($scope) {
$scope.click=function(){
angular.element('#div1').addClass("alpha");
};
});
<div id='div1'>Text</div>
<button ng-click="click()">action</button>
Ref:https://docs.angularjs.org/api/ng/function/angular.element
If you are running your code on 8.0 then application will crash. So start the service in the foreground. If below 8.0 use this :
Intent serviceIntent = new Intent(context, RingtonePlayingService.class);
context.startService(serviceIntent);
If above or 8.0 then use this :
Intent serviceIntent = new Intent(context, RingtonePlayingService.class);
ContextCompat.startForegroundService(context, serviceIntent );
If I want to find where anything I want to search is, I use this:
DECLARE @search_string varchar(200)
SET @search_string = '%myString%'
SELECT DISTINCT
o.name AS Object_Name,
o.type_desc,
m.definition
FROM sys.sql_modules m
INNER JOIN
sys.objects o
ON m.object_id = o.object_id
WHERE m.definition Like @search_string;
Try this:
first, *rest = ex.split(/, /)
Now first
will be the first value, rest
will be the rest of the array.
I know this might sound silly, but I recently came across this myself, Make sure the domain controller is not read-only.
First you need to update the pom.xml by adding below
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.1.6.RELEASE</version>
</dependency>
1] Right click your project name.
2] Click Properties.
3] Click Java Build Path.
4] Check on 'Maven Dependencies' in Order and Export tabl.
In my case, previously it was not enabled. So when I enabled it my @GetMapping annotation works fine..
You can use:
$('#table').dataTable().fnClearTable();
$('#table').dataTable().fnAddData(myData2);
Update. And yes current documentation is not so good but if you are okay using older versions you can refer legacy documentation.
taking original db to offline worked for me
The properties on the style
object are only the styles applied directly to the element (e.g., via a style
attribute or in code). So .style.marginTop
will only have something in it if you have something specifically assigned to that element (not assigned via a style sheet, etc.).
To get the current calculated style of the object, you use either the currentStyle
property (Microsoft) or the getComputedStyle
function (pretty much everyone else).
Example:
var p = document.getElementById("target");
var style = p.currentStyle || window.getComputedStyle(p);
display("Current marginTop: " + style.marginTop);
Fair warning: What you get back may not be in pixels. For instance, if I run the above on a p
element in IE9, I get back "1em"
.
Use random.uniform(a, b):
>>> random.uniform(1.5, 1.9)
1.8733202628557872
Change .text
to .textContent
to get/set the text content.
Or since you're dealing with a single text node, use .firstChild.data
in the same manner.
Also, let's make sensible use of a variable, and enjoy some code reduction and eliminate redundant DOM selection by caching the result of getElementById
.
function toggleText(button_id)
{
var el = document.getElementById(button_id);
if (el.firstChild.data == "Lock")
{
el.firstChild.data = "Unlock";
}
else
{
el.firstChild.data = "Lock";
}
}
Or even more compact like this:
function toggleText(button_id) {
var text = document.getElementById(button_id).firstChild;
text.data = text.data == "Lock" ? "Unlock" : "Lock";
}
You can pass a *
to getElementsByTagName()
so that it will return all elements in a page:
var all = document.getElementsByTagName("*");
for (var i=0, max=all.length; i < max; i++) {
// Do something with the element here
}
Note that you could use querySelectorAll()
, if it's available (IE9+, CSS in IE8), to just find elements with a particular class.
if (document.querySelectorAll)
var clsElements = document.querySelectorAll(".mySpeshalClass");
else
// loop through all elements instead
This would certainly speed up matters for modern browsers.
Browsers now support foreach on NodeList. This means you can directly loop the elements instead of writing your own for loop.
document.querySelectorAll('*').forEach(function(node) {
// Do whatever you want with the node object.
});
Performance note - Do your best to scope what you're looking for by using a specific selector. A universal selector can return lots of nodes depending on the complexity of the page. Also, consider using
document.body.querySelectorAll
instead ofdocument.querySelectorAll
when you don’t care about<head>
children.
One thing want to add is that if a property is declared as @dynamic it will not occupy memory (I confirmed with allocation instrument). A consequence is that you can declare property in class category.
Closing the instance of SSMS (SQL Service Manager) from which the request was made solved the problem for me.....
This answer doesn't require that you know the what type of display (inline, etc.) the hideable element is supposed to be when being shown:
.hoverable:not(:hover) + .show-on-hover {_x000D_
display: none;_x000D_
}
_x000D_
<a class="hoverable">Hover over me!</a>_x000D_
<div class="show-on-hover">I'm a block element.</div>_x000D_
_x000D_
<hr />_x000D_
_x000D_
<a class="hoverable">Hover over me also!</a>_x000D_
<span class="show-on-hover">I'm an inline element.</span>
_x000D_
This uses the adjacent sibling selector and the not selector.
The answer by @Dayerman and @h_rules is right. To give an elaborated example with code, In drawable folder, create an xml file called button_disabled.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" android:padding="10dp">
<solid android:color="@color/silver"/>
<corners
android:bottomRightRadius="20dp"
android:bottomLeftRadius="20dp"
android:topLeftRadius="20dp"
android:topRightRadius="20dp"/>
</shape>
Then in Java,
((Button) findViewById(R.id.my_button)).setEnabled(false);
((Button) findViewById(R.id.my_button)).setBackgroundResource(R.drawable.button_disabled);
This will set the button's property to disabled and sets the color to silver.
[The color is defined in color.xml as:
<resources>
<color name="silver">#C0C0C0</color>
</resources>
Here is a client side "sequential guid" solution.
http://www.pinvoke.net/default.aspx/rpcrt4.uuidcreate
using System;
using System.Runtime.InteropServices;
namespace MyCompany.MyTechnology.Framework.CrossDomain.GuidExtend
{
public static class Guid
{
/*
Original Reference for Code:
http://www.pinvoke.net/default.aspx/rpcrt4/UuidCreateSequential.html
*/
[DllImport("rpcrt4.dll", SetLastError = true)]
static extern int UuidCreateSequential(out System.Guid guid);
public static System.Guid NewGuid()
{
return CreateSequentialUuid();
}
public static System.Guid CreateSequentialUuid()
{
const int RPC_S_OK = 0;
System.Guid g;
int hr = UuidCreateSequential(out g);
if (hr != RPC_S_OK)
throw new ApplicationException("UuidCreateSequential failed: " + hr);
return g;
}
/*
Text From URL above:
UuidCreateSequential (rpcrt4)
Type a page name and press Enter. You'll jump to the page if it exists, or you can create it if it doesn't.
To create a page in a module other than rpcrt4, prefix the name with the module name and a period.
. Summary
Creates a new UUID
C# Signature:
[DllImport("rpcrt4.dll", SetLastError=true)]
static extern int UuidCreateSequential(out Guid guid);
VB Signature:
Declare Function UuidCreateSequential Lib "rpcrt4.dll" (ByRef id As Guid) As Integer
User-Defined Types:
None.
Notes:
Microsoft changed the UuidCreate function so it no longer uses the machine's MAC address as part of the UUID. Since CoCreateGuid calls UuidCreate to get its GUID, its output also changed. If you still like the GUIDs to be generated in sequential order (helpful for keeping a related group of GUIDs together in the system registry), you can use the UuidCreateSequential function.
CoCreateGuid generates random-looking GUIDs like these:
92E60A8A-2A99-4F53-9A71-AC69BD7E4D75
BB88FD63-DAC2-4B15-8ADF-1D502E64B92F
28F8800C-C804-4F0F-B6F1-24BFC4D4EE80
EBD133A6-6CF3-4ADA-B723-A8177B70D268
B10A35C0-F012-4EC1-9D24-3CC91D2B7122
UuidCreateSequential generates sequential GUIDs like these:
19F287B4-8830-11D9-8BFC-000CF1ADC5B7
19F287B5-8830-11D9-8BFC-000CF1ADC5B7
19F287B6-8830-11D9-8BFC-000CF1ADC5B7
19F287B7-8830-11D9-8BFC-000CF1ADC5B7
19F287B8-8830-11D9-8BFC-000CF1ADC5B7
Here is a summary of the differences in the output of UuidCreateSequential:
The last six bytes reveal your MAC address
Several GUIDs generated in a row are sequential
Tips & Tricks:
Please add some!
Sample Code in C#:
static Guid UuidCreateSequential()
{
const int RPC_S_OK = 0;
Guid g;
int hr = UuidCreateSequential(out g);
if (hr != RPC_S_OK)
throw new ApplicationException
("UuidCreateSequential failed: " + hr);
return g;
}
Sample Code in VB:
Sub Main()
Dim myId As Guid
Dim code As Integer
code = UuidCreateSequential(myId)
If code <> 0 Then
Console.WriteLine("UuidCreateSequential failed: {0}", code)
Else
Console.WriteLine(myId)
End If
End Sub
*/
}
}
Keywords: CreateSequentialUUID SequentialUUID
What is your opinion to use express-generator it will generate skeleton project to start with, without deprecated messages
appeared in your log
run this command
npm install express-generator -g
Now, create new Express.js starter application by type this command in your Node projects folder
.
express node-express-app
That command tell express to generate new Node.js application with the name node-express-app
.
then Go to the newly created project directory
, install npm packages
and start the app
using the command
cd node-express-app && npm install && npm start
Am adding few things related to jenkins configuration files storage.
As per my understanding all config file stores in the machine or OS that you have installed jenkins.
The jobs you are going to create in jenkins will be stored in jenkins server and you can find the config.xml etc., here.
After jenkins installation you will find jenkins workspace in server.
*cd>jenkins/jobs/`
cd>jenkins/jobs/$ls
job1 job2 job3 config.xml ....*
private void drawArrows(Point[] point, Canvas canvas, Paint paint) {
float [] points = new float[8];
points[0] = point[0].x;
points[1] = point[0].y;
points[2] = point[1].x;
points[3] = point[1].y;
points[4] = point[2].x;
points[5] = point[2].y;
points[6] = point[0].x;
points[7] = point[0].y;
canvas.drawVertices(VertexMode.TRIANGLES, 8, points, 0, null, 0, null, 0, null, 0, 0, paint);
Path path = new Path();
path.moveTo(point[0].x , point[0].y);
path.lineTo(point[1].x,point[1].y);
path.lineTo(point[2].x,point[2].y);
canvas.drawPath(path,paint);
}
size_t
is an unsigned type. So, it cannot represent any negative values(<0). You use it when you are counting something, and are sure that it cannot be negative. For example, strlen()
returns a size_t
because the length of a string has to be at least 0.
In your example, if your loop index is going to be always greater than 0, it might make sense to use size_t
, or any other unsigned data type.
When you use a size_t
object, you have to make sure that in all the contexts it is used, including arithmetic, you want non-negative values. For example, let's say you have:
size_t s1 = strlen(str1);
size_t s2 = strlen(str2);
and you want to find the difference of the lengths of str2
and str1
. You cannot do:
int diff = s2 - s1; /* bad */
This is because the value assigned to diff
is always going to be a positive number, even when s2 < s1
, because the calculation is done with unsigned types. In this case, depending upon what your use case is, you might be better off using int
(or long long
) for s1
and s2
.
There are some functions in C/POSIX that could/should use size_t
, but don't because of historical reasons. For example, the second parameter to fgets
should ideally be size_t
, but is int
.
You Can Use
string txt = " i am a string ";
txt = txt.TrimStart().TrimEnd();
Output is "i am a string"
A char
is actually a numeric datatype - you can add one to an int
, for example. It's an unsigned short
(16 bits). In that regard you can just cast the output to, say, an int
to get the numeric value.
However you need to think a little more about what it is you're asking - not all characters are ASCII values. What output do you expect for â
, for example, or ?
?
Moreover, why do you want this? In this day and age you ought to be thinking about Unicode, not ASCII. If you let people know what your goal is, and how you intend to use this returned value, we can almost certainly let you know of a better way to achieve it.
I removed /usr/lib from the LD_LIBRARY_PATH and it worked. I was working in dockerfile postgres:alpine.
I don't understand why other answers are about relative coordinates change, not absolute like OP asked in title.
$("#Friends").animate( {top:
"-=" + (parseInt($("#Friends").css("top")) - 100) + "px"
} );
This question seems to be answered, however for completeness, I would add another approach.
You can use a unique ID number generator which is based on Twitter's Snowflake id generator. C# implementation can be found here.
var id64Generator = new Id64Generator();
// ...
public string generateID(string sourceUrl)
{
return string.Format("{0}_{1}", sourceUrl, id64Generator.GenerateId());
}
Note that one of very nice features of that approach is possibility to have multiple generators on independent nodes (probably something useful for a search engine) generating real time, globally unique identifiers.
// node 0
var id64Generator = new Id64Generator(0);
// node 1
var id64Generator = new Id64Generator(1);
// ... node 10
var id64Generator = new Id64Generator(10);
You can use the ejb3-persistence.jar that's bundled with hibernate. This jar only includes the javax.persistence package.
Server side put this on top of .php:
header('Access-Control-Allow-Origin: *');
You can set specific domain restriction access:
header('Access-Control-Allow-Origin: https://www.example.com')
Another implementation just for functional JS practicing could be
var bin2int = s => Array.prototype.reduce.call(s, (p,c) => p*2 + +c)_x000D_
console.log(bin2int("101010"));
_x000D_
+c
coerces String
type c
to a Number
type value for proper addition.
Try with disabling Windows Firewall, it worked for me, but in my case, I was able to access IIS through 127.0.0.1
1 - Your malloc() is wrong.
2 - You are overstepping the bounds of the allocated memory
3 - You should initialize your allocated memory
Here is the program with all the changes needed. I compiled and ran... no errors or warnings.
#include <stdio.h>
#include <stdlib.h> //malloc
#include <math.h> //sine
#include <string.h>
#define TIME 255
#define HARM 32
int main (void) {
double sineRads;
double sine;
int tcount = 0;
int hcount = 0;
/* allocate some heap memory for the large array of waveform data */
double *ptr = malloc(sizeof(double) * TIME);
//memset( ptr, 0x00, sizeof(double) * TIME); may not always set double to 0
for( tcount = 0; tcount < TIME; tcount++ )
{
ptr[tcount] = 0;
}
tcount = 0;
if (NULL == ptr) {
printf("ERROR: couldn't allocate waveform memory!\n");
} else {
/*evaluate and add harmonic amplitudes for each time step */
for(tcount = 0; tcount < TIME; tcount++){
for(hcount = 0; hcount <= HARM; hcount++){
sineRads = ((double)tcount / (double)TIME) * (2*M_PI); //angular frequency
sineRads *= (hcount + 1); //scale frequency by harmonic number
sine = sin(sineRads);
ptr[tcount] += sine; //add to other results for this time step
}
}
free(ptr);
ptr = NULL;
}
return 0;
}
this.getWindow().getDecorView().findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content).getRootView()
Another solution is:
>>> "".join(list(hex(255))[2:])
'ff'
Probably an archaic answer, but functional.
If you want the remainder of your division problem, just use the actual remainder rules, just like in mathematics. Granted this won't give you a decimal output.
valone = 8
valtwo = 3
x = valone / valtwo
r = valone - (valtwo * x)
print "Answer: %s with a remainder of %s" % (x, r)
If you want to make this in a calculator format, just substitute valone = 8
with valone = int(input("Value One"))
. Do the same with valtwo = 3
, but different vairables obviously.
$_SERVER['HTTP_REFERER']
will give you incomplete url.
If you want http://bawse.3owl.com/jayz__magna_carta_holy_grail.php
, $_SERVER['HTTP_REFERER']
will give you http://bawse.3owl.com/
only.
Can you post your code? I'm not finding any issue with this. Tested on Firefox 3.01/safari 3.1.2 with:
function showMe(e) {
// i am spammy!
alert(e.value);
}
....
<input type="text" id="foo" value="bar" onkeyup="showMe(this)" />
I doubt css understands left
by itself. You need to use it specifying position. You are using .css() correctly
position: relative/absolute/whatever;
left: 900px;
heres a fiddle of it working
and without the position here's what you get
Change your if statement to be like this - with quotes around -900px
var n = $("items").css("left");
if(n == '-900px'){
$(".items span").fadeOut("slow");
}
Starting with Cygwin 1.7.34, the recommended way to do this is to add a custom db_home
setting to /etc/nsswitch.conf
. A common wish when doing this is to make your Cygwin home directory equal to your Windows user profile directory. This setting will do that:
db_home: windows
Or, equivalently:
db_home: /%H
You need to use the latter form if you want some variation on this scheme, such as to segregate your Cygwin home files into a subdirectory of your Windows user profile directory:
db_home: /%H/cygwin
There are several other alternative schemes for the windows
option plus several other %
tokens you can use instead of %H
or in addition to it. See the nsswitch.conf
syntax description in the Cygwin User Guide for details.
If you installed Cygwin prior to 1.7.34 or have run its mkpasswd
utility so that you have an /etc/passwd
file, you can change your Cygwin home directory by editing your user's entry in that file. Your home directory is the second-to-last element on your user's line in /etc/passwd
.¹
Whichever way you do it, this causes the HOME
environment variable to be set during shell startup.²
See this FAQ item for more on the topic.
Footnotes:
Consider moving /etc/passwd
and /etc/group
out of the way in order to use the new SAM/AD-based mechanism instead.
While it is possible to simply set %HOME%
via the Control Panel, it is officially discouraged. Not only does it unceremoniously override the above mechanisms, it doesn't always work, such as when running shell scripts via cron
.
If you're interested in how an open source project does stuff like this, you can check out the Terracotta class (Os.java) that handles this junk here:
And you can see a similar class to handle JVM versions (Vm.java and VmVersion.java) here:
I initialised the slider with one of the properties as
variableWidth: true
then i could set the width of the slides to anything i wanted in CSS with:
.slick-slide {
width: 200px;
}
You need to specify a frame, a target otherwise your script will vanish on first submit!
Change document.myForm
with document.forms["myForm"]
:
<form name="myForm" id="myForm" target="_myFrame" action="test.php" method="POST">
<p>
<input name="test" value="test" />
</p>
<p>
<input type="submit" value="Submit" />
</p>
</form>
<script type="text/javascript">
window.onload=function(){
var auto = setTimeout(function(){ autoRefresh(); }, 100);
function submitform(){
alert('test');
document.forms["myForm"].submit();
}
function autoRefresh(){
clearTimeout(auto);
auto = setTimeout(function(){ submitform(); autoRefresh(); }, 10000);
}
}
</script>
Using command line:
python -c "import scipy; print(scipy.__version__)"
This may seem slightly off topic but this was the post I came across when wondering what happens when you read a column as a dateTime in c#. The post reflects the information I would have liked to be able to find about this mechanism. If you worry about utc and timezones then read on
I did a little more research as I'm always very wary of DateTime as a class because of its automatic assumptions about what timezone you are using and because it is way too easy to confuse local times and utc times.
What I'm trying to avoid here is DateTime going 'oh look the computer I'm being run on is in timezone x, therefore this time must also be in timezone x, when I get asked for my values I'll reply as if I'm in that timezone'
I was trying to read a datetime2
column.
The date time you will get back from sql server will end up being of Kind.Unspecified
this seems to mean it gets treated like UTC, which is what I wanted.
When reading a date
column you also have to read it as a DateTime
even though it has no time and is even more prone to screwing up by timezones (as it is on midnight).
I'd certainly consider this to be safer way of reading the DateTime as I suspect it can probably be modified by either settings in sql server or static settings in your c#:
var time = reader.GetDateTime(1);
var utcTime = new DateTime(time.Ticks, DateTimeKind.Utc);
From there you can get the components (Day, Month, Year) etc and format how you like.
If what you have is actually a date + a time then Utc might not be what you want there - since you are mucking around on the client you may need to convert it to a local time first (depending on what the meaning of the time is). However that opens up a whole can of worms.. If you need to do that I'd recommend using a library like noda time. There is TimeZoneInfo
in the standard library but after briefly investigating it, it doesn't seem to have a proper set of timezones. You can see the list provided by TimeZoneInfo
by using the method TimeZoneInfo.GetSystemTimeZones();
I also discovered sql server management studio doesn't convert times to local time before displaying them. Which is a relief!
I think this will probably answer your question. Here's what I wrote there:
Here's a very general answer. Say the camera's at (Xc, Yc, Zc) and the point you want to project is P = (X, Y, Z). The distance from the camera to the 2D plane onto which you are projecting is F (so the equation of the plane is Z-Zc=F). The 2D coordinates of P projected onto the plane are (X', Y').
Then, very simply:
X' = ((X - Xc) * (F/Z)) + Xc
Y' = ((Y - Yc) * (F/Z)) + Yc
If your camera is the origin, then this simplifies to:
X' = X * (F/Z)
Y' = Y * (F/Z)
I'm going to offer a method that I use a lot when I want to store information in the html page, and want my javascript to read information without actually having to pass parameters to the javascript. This is especially useful when your script is referenced externally, rather than inline.
It doesn't meet the criterion of "no server side script", however. But if you can include server side scripting in your html, do this:
Make hidden label elements at the bottom of your html page, just above the end body tag.
Your label will look like this:
<label id="ip" class="hiddenlabel"><?php echo $_SERVER['REMOTE_ADDR']; ?></label>
Be sure to make a class called hiddenlabel
and set the visibility:hidden
so no one actually sees the label. You can store lots of things this way, in hidden labels.
Now, in your javascript, to retrieve the information stored in the label (in this case the client's ip address), you can do this:
var ip = document.getElementById("ip").innerHTML;
Now your variable "ip" equals the ip address. Now you can pass the ip to your API request.
* EDIT 2 YEARS LATER * Two minor refinements:
I routinely use this method, but call the label class="data"
, because, in fact, it is a way to store data. Class name "hiddenlabel" is kind of a stupid name.
The second modification is in the style sheet, instead of visibility:hidden
:
.data{
display:none;
}
...is the better way of doing it.
Header files needed:
#include <iostream>
#include <fstream>
declare input file stream:
ifstream in("in.txt");
declare output file stream:
ofstream out("out.txt");
if you want to use variable for a file name, instead of hardcoding it, use this:
string file_name = "my_file.txt";
ifstream in2(file_name.c_str());
reading from file into variables (assume file has 2 int variables in):
int num1,num2;
in >> num1 >> num2;
or, reading a line a time from file:
string line;
while(getline(in,line)){
//do something with the line
}
write variables back to the file:
out << num1 << num2;
close the files:
in.close();
out.close();
I can recommend Ninject. It's incredibly fast and easy to use but only if you don't need XML configuration, else you should use Windsor.
You need to find reference of existing Fragment and remove that fragment using below code. You need add/commit fragment using one tag ex. "TAG_FRAGMENT".
Fragment fragment = getSupportFragmentManager().findFragmentByTag(TAG_FRAGMENT);
if(fragment != null)
getSupportFragmentManager().beginTransaction().remove(fragment).commit();
That is it.
No. NodeJS is not available as an Apache module in the way mod-perl and mod-php are, so it's not possible to run node "on top of" Apache. As hexist pointed out, it's possible to run node as a separate process and arrange communication between the two, but this is quite different to the LAMP stack you're already using.
As a replacement for Apache, node offers performance advantages if you have many simultaneous connections. There's also a huge ecosystem of modules for almost anything you can think of.
From your question, it's not clear if you need to dynamically generate pages on every request, or just generate new content periodically for caching and serving. If its the latter, you could use separate node task to generate content to a directory that Apache would serve, but again, that's quite different to PHP or Perl.
Node isn't the best way to serve static content. Nginx and Varnish are more effective at that. They can serve static content while Node handles the dynamic data.
If you're considering using node for a web application at all, Express should be high on your list. You could implement a web application purely in Node, but Express (and similar frameworks like Flatiron, Derby and Meteor) are designed to take a lot of the pain and tedium away. Although the Express documentation can seem a bit sparse at first, check out the screen casts which are still available here: http://expressjs.com/2x/screencasts.html They'll give you a good sense of what express offers and why it is useful. The github repository for ExpressJS also contains many good examples for everything from authentication to organizing your app.
A BufferedReader constructor takes a reader as argument, not an InputStream. You should first create a Reader from your stream, like so:
Reader reader = new InputStreamReader(is);
BufferedReader br = new BufferedReader(reader);
Preferrably, you also provide a Charset or character encoding name to the StreamReader constructor. Since a stream just provides bytes, converting these to text means the encoding must be known. If you don't specify it, the system default is assumed.
In addition, if you have migrated your user files and applications from one mac to another, you need to install Apple Developer Tools all over again. The migration assistant does not account for the developer tools installation.
I don't know ASP.NET very well, but can you use the ternary operator?
http://en.wikipedia.org/wiki/Ternary_operation
Something like: (x=Eval("item")) == Null ? 0 : x
With no argument:
ourObject = PowerMockito.spy(new OurClass());
when(ourObject , "ourPrivateMethodName").thenReturn("mocked result");
With String
argument:
ourObject = PowerMockito.spy(new OurClass());
when(ourObject, method(OurClass.class, "ourPrivateMethodName", String.class))
.withArguments(anyString()).thenReturn("mocked result");
Here are the exact steps I just took to run the "Hello World" example found at http://nodejs.org/. This is a quick and dirty example. For a permanent installation you'd want to store the executable in a more reasonable place than the root directory and update your PATH
to include its location.
var http = require('http');
http.createServer(function (req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
}).listen(1337, "127.0.0.1");
console.log('Server running at http://127.0.0.1:1337/');
C:>node hello.js
Server running at http://127.0.0.1:1337/
That's it. This was done on Windows XP.
If you have not configured any HttpMethod on your action in controller, it is assumed to be only HttpPost in RC. In Beta, it is assumed to support all methods - GET, PUT, POST and Delete. This is a small change from beta to RC. You could easily decore more than one httpmethod on your action with [AcceptVerbs("GET", "POST")].
Matti Virkkunen said it right, there's no "decent" way of stopping the loop. Nonetheless, by looking at your code and making several assumptions, I imagine you're trying to output a signal with a given frequency, but you want to be able to stop it.
If that's the case, there are several solutions:
If you want to generate the signal with the input of a button you could do the following
int speakerOut = A0;
int buttonPin = 13;
void setup() {
pinMode(speakerOut, OUTPUT);
pinMode(buttonPin, INPUT_PULLUP);
}
int a = 0;
void loop() {
if(digitalRead(buttonPin) == LOW) {
a ++;
Serial.println(a);
analogWrite(speakerOut, NULL);
if(a > 50 && a < 300) {
analogWrite(speakerOut, 200);
}
if(a <= 49) {
analogWrite(speakerOut, NULL);
}
if(a >= 300 && a <= 2499) {
analogWrite(speakerOut, NULL);
}
}
}
In this case we're using a button pin as an INPUT_PULLUP
. You can read the Arduino reference for more information about this topic, but in a nutshell this configuration sets an internal pullup resistor, this way you can just have your button connected to ground, with no need of external resistors.
Note: This will invert the levels of the button, LOW
will be pressed and HIGH
will be released.
The other option would be using one of the built-ins hardware timers to get a function called periodically with interruptions. I won't go in depth be here's a great description of what it is and how to use it.
First make a xml file with contents shown below and name it border.xml and place it inside the layout folder inside the res directory
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<stroke android:width="1dp" android:color="#0000" />
<padding android:left="0dp" android:top="1dp" android:right="0dp"
android:bottom="1dp" />
</shape>
After that inside the code use
TextView tv = (TextView)findElementById(R.id.yourTextView);
tv.setBackgroundResource(R.layout.border);
This will make a black line on top and bottom of the TextView.
Explaining with Pictures :
The reference in the scope is not exactly the reference in the template. When you data-bind two objects, you need a third one that listen to the first and modify the other.
Here, when you modify the <input>
, you touch the data-ref3. And the classic data-bind mecanism will change data-ref4. So how the other {{data}}
expressions will move ?
Angular maintains a oldValue
and newValue
of every binding. And after every Angular event, the famous $digest()
loop will check the WatchList to see if something changed. These Angular events are ng-click
, ng-change
, $http
completed ... The $digest()
will loop as long as any oldValue
differs from the newValue
.
In the previous picture, it will notice that data-ref1 and data-ref2 has changed.
It's a little like the Egg and Chicken. You never know who starts, but hopefully it works most of the time as expected.
The other point is that you can understand easily the impact deep of a simple binding on the memory and the CPU. Hopefully Desktops are fat enough to handle this. Mobile phones are not that strong.
When it comes to Google Analytics I found raik's answer at Secure Google tracking cookies very useful. It set secure and samesite to a value.
ga('create', 'UA-XXXXX-Y', {
cookieFlags: 'max-age=7200;secure;samesite=none'
});
Also more info in this blog post
This question is already answered above which states the file names in last commit by git log / other commands. If someone wants to see what all changed in last commit (line differences), you can use this command -
git show
This automatically displays the line differences in last commit.
You need to specify the domain:
$('.button1').click(function() {
window.location = 'www.example.com/index.php?id=' + this.id;
});
Try -o "ProxyCommand=nc --proxy HOST:PORT %h %p"
for command in question. It worked on OEL6 but need to modify as mentioned for OEL7.
This one allows empty spaces and tabs from both sides in case you don't want to fail validation and then trim it sever side.
^\s*(([Gg][Ii][Rr] 0[Aa]{2})|((([A-Za-z][0-9]{1,2})|(([A-Za-z][A-Ha-hJ-Yj-y][0-9]{1,2})|(([A-Za-z][0-9][A-Za-z])|([A-Za-z][A-Ha-hJ-Yj-y][0-9]?[A-Za-z])))) {0,1}[0-9][A-Za-z]{2})\s*$)
client = new OkHttpClient();
Request request = new Request.Builder().header("authorization", token).url(url).build();
MyWebSocketListener wsListener = new MyWebSocketListener(LudoRoomActivity.this);
client.newWebSocket(request, wsListener);
client.dispatcher().executorService().shutdown();
Use this query:
UPDATE `table` SET date_date=now();
Sample code can be:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("my_db", $con);
mysql_query("UPDATE `table` SET date_date=now()");
mysql_close($con);
?>
If Maven->Update Project doesn't work for you? These are the steps I religiously follow. Remove the project from eclipse (do not delete it from workspace) Close Eclipse go to command line and run these commands.
mvn eclipse:clean
mvn eclipse:eclipse -Dwtpversion=2.0
Open Eclipse import existing Maven project. You will see the maven dependency in our project.
Hope this works.
I'm using THUNDERBIRD as MUA and I have same issues. I solved adding the IP address of my home PC on mynetworks parameter on main.cf
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 MyIpAddress
P.S. I don't have a static ip for my home PC so when my ISP change it I ave to adjust every time.
You can use this code to Download file from a WebSite to Desktop:
using System.Net;
WebClient client = new WebClient ();
client.DownloadFileAsync(new Uri("http://www.Address.com/File.zip"), Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "File.zip");
Depends. If you know you're going to need both the key and the value of every entry, then go through the entrySet
. If you just need the values, then there's the values()
method. And if you just need the keys, then use keyset()
.
A bad practice would be to iterate through all of the keys, and then within the loop, always do map.get(key)
to get the value. If you're doing that, then the first option I wrote is for you.
For just add an alpha channel to s_img I just use cv2.addWeighted before the line
l_img[y_offset:y_offset+s_img.shape[0], x_offset:x_offset+s_img.shape[1]] = s_img
as following:
s_img=cv2.addWeighted(l_img[y_offset:y_offset+s_img.shape[0], x_offset:x_offset+s_img.shape[1]],0.5,s_img,0.5,0)
The reason your attempt wasn't working, is because the two animations (fade-in and fade-out) were working against each other.
Right before an object became visible, it was still invisible and so the animation for fading-out would run. Then, the fraction of a second later when that same object had become visible, the fade-in animation would try to run, but the fade-out was still running. So they would work against each other and you would see nothing.
Eventually the object would become visible (most of the time), but it would take a while. And if you would scroll down by using the arrow-button at the button of the scrollbar, the animation would sort of work, because you would scroll using bigger increments, creating less scroll-events.
Enough explanation, the solution (JS, CSS, HTML):
$(window).on("load",function() {_x000D_
$(window).scroll(function() {_x000D_
var windowBottom = $(this).scrollTop() + $(this).innerHeight();_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
_x000D_
/* If the element is completely within bounds of the window, fade it in */_x000D_
if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
if ($(this).css("opacity")==0) {$(this).fadeTo(500,1);}_x000D_
} else { //object goes out of view (scrolling up)_x000D_
if ($(this).css("opacity")==1) {$(this).fadeTo(500,0);}_x000D_
}_x000D_
});_x000D_
}).scroll(); //invoke scroll-handler on page-load_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
if ($(this).css("opacity")==0) {...}
. This makes sure the object is only faded in when the opacity
is 0
. Same goes for fading out. And this prevents the fade-in and fade-out from working against each other, because now there's ever only one of the two running at one time on an object..animate()
to .fadeTo()
. It's jQuery's specialized function for opacity, a lot shorter to write and probably lighter than animate..position()
to .offset()
. This always calculates relative to the body, whereas position is relative to the parent. For your case I believe offset is the way to go.$(window).height()
to $(window).innerHeight()
. The latter is more reliable in my experience.$(window).scroll();
. Now you can give all desired objects on the page the .fade
class, and objects that should be invisible at page-load, will be faded out immediately.#container
from both HTML and CSS, because (at least for this answer) it isn't necessary. (I thought maybe you needed the height:2000px
because you used .position()
instead of .offset()
, otherwise I don't know. Feel free of course to leave it in your code.)If you want opacity values other than 0
and 1
, use the following code:
$(window).on("load",function() {_x000D_
function fade(pageLoad) {_x000D_
var windowBottom = $(window).scrollTop() + $(window).innerHeight();_x000D_
var min = 0.3;_x000D_
var max = 0.7;_x000D_
var threshold = 0.01;_x000D_
_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
_x000D_
/* If the element is completely within bounds of the window, fade it in */_x000D_
if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
if ($(this).css("opacity")<=min+threshold || pageLoad) {$(this).fadeTo(500,max);}_x000D_
} else { //object goes out of view (scrolling up)_x000D_
if ($(this).css("opacity")>=max-threshold || pageLoad) {$(this).fadeTo(500,min);}_x000D_
}_x000D_
});_x000D_
} fade(true); //fade elements on page-load_x000D_
$(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
threshold
and for min/max
at the start of the function. In the rest of the function these variables are referenced. This way, if you ever want to change the values again, you only have to do it in one place.|| pageLoad
to the if-clause. This was necessary to make sure all objects are faded to the correct opacity on page-load. pageLoad
is a boolean that is send along as an argument when fade()
is invoked.function fade() {...}
, in order to be able to send along the pageLoad
boolean when the scroll-handler is invoked.Explanation:
The reason the code in your fiddle didn't work, is because the actual opacity values are always a little off from the value you set it to. So if you set the opacity to 0.3
, the actual value (in this case) is 0.300000011920929
. That's just one of those little bugs you have to learn along the way by trail and error. That's why this if-clause won't work: if ($(this).css("opacity") == 0.3) {...}
.
I added a threshold, to take that difference into account: == 0.3
becomes <= 0.31
.
(I've set the threshold to 0.01
, this can be changed of course, just as long as the actual opacity will fall between the set value and this threshold.)
The operators are now changed from ==
to <=
and >=
.
If you want to fade the elements based on their visible percentage, use the following code:
$(window).on("load",function() {_x000D_
function fade(pageLoad) {_x000D_
var windowTop=$(window).scrollTop(), windowBottom=windowTop+$(window).innerHeight();_x000D_
var min=0.3, max=0.7, threshold=0.01;_x000D_
_x000D_
$(".fade").each(function() {_x000D_
/* Check the location of each desired element */_x000D_
var objectHeight=$(this).outerHeight(), objectTop=$(this).offset().top, objectBottom=$(this).offset().top+objectHeight;_x000D_
_x000D_
/* Fade element in/out based on its visible percentage */_x000D_
if (objectTop < windowTop) {_x000D_
if (objectBottom > windowTop) {$(this).fadeTo(0,min+((max-min)*((objectBottom-windowTop)/objectHeight)));}_x000D_
else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
} else if (objectBottom > windowBottom) {_x000D_
if (objectTop < windowBottom) {$(this).fadeTo(0,min+((max-min)*((windowBottom-objectTop)/objectHeight)));}_x000D_
else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
} else if ($(this).css("opacity")<=max-threshold || pageLoad) {$(this).fadeTo(0,max);}_x000D_
});_x000D_
} fade(true); //fade elements on page-load_x000D_
$(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});
_x000D_
.fade {_x000D_
margin: 50px;_x000D_
padding: 50px;_x000D_
background-color: lightgreen;_x000D_
opacity: 1;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div class="fade">Fade In 01</div>_x000D_
<div class="fade">Fade In 02</div>_x000D_
<div class="fade">Fade In 03</div>_x000D_
<div class="fade">Fade In 04</div>_x000D_
<div class="fade">Fade In 05</div>_x000D_
<div class="fade">Fade In 06</div>_x000D_
<div class="fade">Fade In 07</div>_x000D_
<div class="fade">Fade In 08</div>_x000D_
<div class="fade">Fade In 09</div>_x000D_
<div class="fade">Fade In 10</div>_x000D_
</div>
_x000D_
@scottf
An enum is like a Singleton. The JVM creates the instance.
If you would create it by yourself with classes it could be look like that
public static class MyEnum {
final public static MyEnum ONE;
final public static MyEnum TWO;
static {
ONE = new MyEnum("1");
TWO = new MyEnum("2");
}
final String enumValue;
private MyEnum(String value){
enumValue = value;
}
@Override
public String toString(){
return enumValue;
}
}
And could be used like that:
public class HelloWorld{
public static class MyEnum {
final public static MyEnum ONE;
final public static MyEnum TWO;
static {
ONE = new MyEnum("1");
TWO = new MyEnum("2");
}
final String enumValue;
private MyEnum(String value){
enumValue = value;
}
@Override
public String toString(){
return enumValue;
}
}
public static void main(String []args){
System.out.println(MyEnum.ONE);
System.out.println(MyEnum.TWO);
System.out.println(MyEnum.ONE == MyEnum.ONE);
System.out.println("Hello World");
}
}
<style name="Theme.AppCompat.Light.NoActionBar" parent="@style/Theme.AppCompat">
<item name="android:windowNoTitle">true</item>
<item name="android:windowFullscreen">true</item>
</style>
Using the above xml in style.xml, you will be able to hide the title as well as action bar.
Residuum did provide a correct answer to how you should get shell exec to find your script, but in regards to security, there are a couple of points.
I would imagine you don't want your shell script to be in your web root, as it would be visible to anyone with web access to your server.
I would recommend moving the shell script to outside of the webroot
<?php
$tempFolder = '/tmp';
$webRootFolder = '/var/www';
$scriptName = 'myscript.sh';
$moveCommand = "mv $webRootFolder/$scriptName $tempFolder/$scriptName";
$output = shell_exec($moveCommand);
?>
In regards to the:
i added www-data ALL=(ALL) NOPASSWD:ALL to /etc/sudoers works
You can modify this to only cover the specific commands in your script which require sudo. Otherwise, if none of the commands in your sh script require sudo to execute, you don't need to do this at all anyway.
Try running the script as the apache user (use the su command to switch to the apache user) and if you are not prompted for sudo or given permission denied, etc, it'll be fine.
ie:
sudo su apache (or www-data)
cd /var/www
sh ./myscript
Also... what brought me here was that I wanted to run a multi line shell script using commands that are dynamically generated. I wanted all of my commands to run in the same shell, which won't happen using multiple calls to shell_exec(). The answer to that one is to do it like Jenkins - create your dynamically generated multi line of commands, put it in a variable, save it to a file in a temp folder, execute that file (using shell_exec in() php as Jenkins is Java), then do whatever you want with the output, and delete the temp file
... voila
You can extend the string type to include the inset method:
String.prototype.append = function (index,value) {_x000D_
return this.slice(0,index) + value + this.slice(index);_x000D_
};_x000D_
_x000D_
var s = "New string";_x000D_
alert(s.append(4,"complete "));
_x000D_
Then you can call the function:
Potential library: https://pypi.org/project/stringcase/
Example:
import stringcase
stringcase.camelcase('foo_bar_baz') # => "fooBarBaz"
Though it's questionable whether it will leave spaces in. (Examples show it removing space, but there is a bug tracker issue noting that it leaves them in.)
For those of you who change to landscape mode, you gotta make sure to use viewSafeAreaInsetsDidChange after the rotation to get the most updated values:
private var safeAreaInsets = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 0)
override func viewSafeAreaInsetsDidChange() {
if #available(iOS 11.0, *) {
safeAreaInsets = UIApplication.shared.keyWindow!.safeAreaInsets
}
}
ftp4j is the best one, both for features and license:
Here follows a simple solution 100% based on CSS. The "secret" is to use the display: inline-block
in the wrapper element. The vertical-align: bottom
in the image is a hack to overcome the 4px padding that some browsers add after the element.
Advice: if the element before the wrapper is inline they can end up nested. In this case you can "wrap the wrapper" inside a container with display: block
- usually a good and old div
.
.wrapper {_x000D_
display: inline-block;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.hover {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
right: 0;_x000D_
bottom: 0;_x000D_
background-color: rgba(0, 188, 212, 0);_x000D_
transition: background-color 0.5s;_x000D_
}_x000D_
_x000D_
.hover:hover {_x000D_
background-color: rgba(0, 188, 212, 0.8);_x000D_
// You can tweak with other background properties too (ie: background-image)..._x000D_
}_x000D_
_x000D_
img {_x000D_
vertical-align: bottom;_x000D_
}
_x000D_
<div class="wrapper">_x000D_
<div class="hover"></div>_x000D_
<img src="http://placehold.it/450x250" />_x000D_
</div>
_x000D_
path = "C:\\Users\\Programming\\Downloads"
# Replace \\ with a \ along with any random key multiple times
path.replace('\\', '\pppyyyttthhhooonnn')
# Now replace pppyyyttthhhooonnn with a blank string
path.replace("pppyyyttthhhooonnn", "")
print(path)
#Output... C:\Users\Programming\Downloads
Another approach is to disable the text box on the client side.
In your case you have only one textbox that you need to disable but consider the case where you have multiple input, select, and textarea fields that yout need to disable.
It is much easier to do it via jquery + (since we can not rely on data coming from the client) add some logic to the controller to prevent these fields from being saved.
Here is an example:
<input id="document_Status" name="document.Status" type="hidden" value="2" />
$(document).ready(function () {
disableAll();
}
function disableAll() {
var status = $('#document_Status').val();
if (status != 0) {
$("input").attr('disabled', true);
$("textarea").attr('disabled', true);
$("select").attr('disabled', true);
}
}
This error may also happen if Java tries to connect to MySQL over SSL, but something goes wrong. (In my case, I was configuring Payara Server 5.193.1 connection pools to MySQL.)
Some people suggested setting useSSL=false
. However, since Connector/J version 8.0.13
, that setting is deprecated. Here's an excerpt from MySQL Connector/J 8.0 Configuration Properties:
sslMode
By default, network connections are SSL encrypted; this property permits secure connections to be turned off, or a different levels of security to be chosen. The following values are allowed:
DISABLED
- Establish unencrypted connections;PREFERRED
- (default) Establish encrypted connections if the server enabled them, otherwise fall back to unencrypted connections;REQUIRED
- Establish secure connections if the server enabled them, fail otherwise;VERIFY_CA
- LikeREQUIRED
but additionally verify the server TLS certificate against the configured Certificate Authority (CA) certificates;VERIFY_IDENTITY
- LikeVERIFY_CA
, but additionally verify that the server certificate matches the host to which the connection is attempted.This property replaced the deprecated legacy properties
useSSL
,requireSSL
, andverifyServerCertificate
, which are still accepted but translated into a value forsslMode
ifsslMode
is not explicitly set:useSSL=false
is translated tosslMode=DISABLED
;{"useSSL=true", "requireSSL=false", "verifyServerCertificate=false"}
is translated tosslMode=PREFERRED
;{"useSSL=true", "requireSSL=true", "verifyServerCertificate=false"}
is translated tosslMode=REQUIRED
;{"useSSL=true" AND "verifyServerCertificate=true"}
is translated tosslMode=VERIFY_CA
. There is no equivalent legacy settings forsslMode=VERIFY_IDENTITY
. Note that, for ALL server versions, the default setting ofsslMode
isPREFERRED
, and it is equivalent to the legacy settings ofuseSSL=true
,requireSSL=false
, andverifyServerCertificate=false
, which are different from their default settings for Connector/J 8.0.12 and earlier in some situations. Applications that continue to use the legacy properties and rely on their old default settings should be reviewed.The legacy properties are ignored if
sslMode
is set explicitly. If none ofsslMode
oruseSSL
is set explicitly, the default setting ofsslMode=PREFERRED
applies.Default:
PREFERRED
Since version: 8.0.13
So, in my case, setting sslMode=DISABLED
was all I needed to resolve the issue.
This was on a test machine. But for production, the secure solution would be properly configuring the Java client and MySQL server to use SSL.
Notice that by disabling SSL, you might also have to set allowPublicKeyRetrieval=true
. (Again, not a wise decision from security standpoint). Further information is provided in MySQL ConnectionString Options:
AllowPublicKeyRetrieval
If the user account uses
sha256_password
authentication, the password must be protected during transmission; TLS is the preferred mechanism for this, but if it is not available then RSA public key encryption will be used. To specify the server’s RSA public key, use theServerRSAPublicKeyFile
connection string setting, or setAllowPublicKeyRetrieval=True
to allow the client to automatically request the public key from the server. Note thatAllowPublicKeyRetrieval=True
could allow a malicious proxy to perform a MITM attack to get the plaintext password, so it is False by default and must be explicitly enabled.
A class that emulates enum behaviour but using string
instead of int
can be created as follows...
public class GrainType
{
private string _typeKeyWord;
private GrainType(string typeKeyWord)
{
_typeKeyWord = typeKeyWord;
}
public override string ToString()
{
return _typeKeyWord;
}
public static GrainType Wheat = new GrainType("GT_WHEAT");
public static GrainType Corn = new GrainType("GT_CORN");
public static GrainType Rice = new GrainType("GT_RICE");
public static GrainType Barley = new GrainType("GT_BARLEY");
}
Usage...
GrainType myGrain = GrainType.Wheat;
PrintGrainKeyword(myGrain);
then...
public void PrintGrainKeyword(GrainType grain)
{
Console.Writeline("My Grain code is " + grain.ToString()); // Displays "My Grain code is GT_WHEAT"
}
No, don't do it that way.
From your Eclipse workspace, right click your project on the left pane -> Properties -> Java Build Path -> Add Jars -> add your jars here.
Tadaa!! :)
You could create your own Exception class:
public class InvalidSpeedException extends Exception {
public InvalidSpeedException(String message){
super(message);
}
}
In your code:
throw new InvalidSpeedException("TOO HIGH");
Yes, but it depends on what you mean by 'embed'; as far as I can tell after reading through the docs, it seems like you have a couple of options if you want to get around using the iframe API. You can use the javascript and flash API's (https://developers.google.com/youtube/player_parameters) to embed a player, but that involves creating Flash objects in your code (something I personally avoid, but not necessarily something that you have to). Below are some helpful sections from the dev docs for the Youtube API.
If you really want to get around all these methods and include video without any sort of iframe, then your best bet might be creating an HTML5 video player/app that can connect to the Youtube Data API (https://developers.google.com/youtube/v3/). I'm not sure what the extent of your needs are, but this would be the way to go if you really want to get around using any iframes or flash objects.
Hope this helps!
Useful:
(https://developers.google.com/youtube/player_parameters)
IFrame embeds using the IFrame Player API
Follow the IFrame Player API instructions to insert a video player in your web page or application after the Player API's JavaScript code has loaded. The second parameter in the constructor for the video player is an object that specifies player options. Within that object, the playerVars property identifies player parameters.
The HTML and JavaScript code below shows a simple example that inserts a YouTube player into the page element that has an id value of ytplayer. The onYouTubePlayerAPIReady() function specified here is called automatically when the IFrame Player API code has loaded. This code does not define any player parameters and also does not define other event handlers.
...
IFrame embeds using tags
Define an tag in your application in which the src URL specifies the content that the player will load as well as any other player parameters you want to set. The tag's height and width parameters specify the dimensions of the player.
If you are creating the element yourself (rather than using the IFrame Player API to create it), you can append player parameters directly to the end of the URL. The URL has the following format:
...
AS3 object embeds
Object embeds use an tag to specify the player's dimensions and parameters. The sample code below demonstrates how to use an object embed to load an AS3 player that automatically plays the same video as the previous two examples.
Create a link in /var/www
like this:
sudo ln -s /usr/share/phpmyadmin /var/www/
Note: since 14.04 you may want to use /var/www/html/
instead of /var/www/
If that's not working for you, you need to include PHPMyAdmin
inside apache configuration.
Open apache.conf
using your favorite editor, mine is nano :)
sudo nano /etc/apache2/apache2.conf
Then add the following line:
Include /etc/phpmyadmin/apache.conf
For Ubuntu 15.04 and 16.04
sudo ln -s /etc/phpmyadmin/apache.conf /etc/apache2/conf-available/phpmyadmin.conf
sudo a2enconf phpmyadmin.conf
sudo service apache2 reload
Simply move the declaration outside of the if block.
@{
string currentstore=HttpContext.Current.Request.ServerVariables["HTTP_HOST"];
string imgsrc="";
if (currentstore == "www.mydomain.com")
{
<link href="/path/to/my/stylesheets/styles1-print.css" rel="stylesheet" type="text/css" />
imgsrc="/content/images/uploaded/store1_logo.jpg";
}
else
{
<link href="/path/to/my/stylesheets/styles2-print.css" rel="stylesheet" type="text/css" />
imgsrc="/content/images/uploaded/store2_logo.gif";
}
}
<a href="@Url.RouteUrl("HomePage")" class="logo"><img alt="" src="@imgsrc"></a>
You could make it a bit cleaner.
@{
string currentstore=HttpContext.Current.Request.ServerVariables["HTTP_HOST"];
string imgsrc="/content/images/uploaded/store2_logo.gif";
if (currentstore == "www.mydomain.com")
{
<link href="/path/to/my/stylesheets/styles1-print.css" rel="stylesheet" type="text/css" />
imgsrc="/content/images/uploaded/store1_logo.jpg";
}
else
{
<link href="/path/to/my/stylesheets/styles2-print.css" rel="stylesheet" type="text/css" />
}
}
I'm not 100% sure if this works in all cases (needs at least Java 1.5):
import java.lang.reflect.Field;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.HashMap;
import java.util.Map;
public class Main
{
public class A
{
}
public class B extends A
{
}
public Map<A, B> map = new HashMap<Main.A, Main.B>();
public static void main(String[] args)
{
try
{
Field field = Main.class.getField("map");
System.out.println("Field " + field.getName() + " is of type " + field.getType().getSimpleName());
Type genericType = field.getGenericType();
if(genericType instanceof ParameterizedType)
{
ParameterizedType type = (ParameterizedType) genericType;
Type[] typeArguments = type.getActualTypeArguments();
for(Type typeArgument : typeArguments)
{
Class<?> classType = ((Class<?>)typeArgument);
System.out.println("Field " + field.getName() + " has a parameterized type of " + classType.getSimpleName());
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
}
This will output:
Field map is of type Map
Field map has a parameterized type of A
Field map has a parameterized type of B
Please read this: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx
You should set indicies for your html elements "name" attributes like planCompareViewModel[0].PlanId
, planCompareViewModel[1].PlanId
to make binder able to parse them into IEnumerable.
Instead of @foreach (var planVM in Model)
use for
loop and render names with indexes.
No reason. Maybe the person who coded it came from PHP. It has the same effect as if you had named it "_item" or "item" or "item$$".
As a suffix (like "item$", pronounced "items"), it can signify an observable such as a DOM element as a convention called "Finnish Notation" similar to the Hungarian Notation.
I think you want to set it in your httpd.conf
file instead of the .htaccess
file.
I am not sure what OS you use, but this link for Ubuntu might give you some pointers on what to do.
https://help.ubuntu.com/community/EnablingUseOfApacheHtaccessFiles
I know the question is about GCC, but I thought it might be useful to have some information about compilers other compilers as well.
GCC's
noinline
function attribute is pretty popular with other compilers as well. It
is supported by at least:
__has_attribute(noinline)
)__TI_GNU_ATTRIBUTE_SUPPORT__
)Additionally, MSVC supports
__declspec(noinline)
back to Visual Studio 7.1. Intel probably supports it too (they try to
be compatible with both GCC and MSVC), but I haven't bothered to
verify that. The syntax is basically the same:
__declspec(noinline)
static void foo(void) { }
PGI 10.2+ (and probably older) supports a noinline
pragma which
applies to the next function:
#pragma noinline
static void foo(void) { }
TI 6.0+ supports a
FUNC_CANNOT_INLINE
pragma which (annoyingly) works differently in C and C++. In C++, it's similar to PGI's:
#pragma FUNC_CANNOT_INLINE;
static void foo(void) { }
In C, however, the function name is required:
#pragma FUNC_CANNOT_INLINE(foo);
static void foo(void) { }
Cray 6.4+ (and possibly earlier) takes a similar approach, requiring the function name:
#pragma _CRI inline_never foo
static void foo(void) { }
Oracle Developer Studio also supports a pragma which takes the function name, going back to at least Forte Developer 6, but note that it needs to come after the declaration, even in recent versions:
static void foo(void);
#pragma no_inline(foo)
Depending on how dedicated you are, you could create a macro that would work everywhere, but you would need to have the function name as well as the declaration as arguments.
If, OTOH, you're okay with something that just works for most people, you can get away with something which is a little more aesthetically pleasing and doesn't require repeating yourself. That's the approach I've taken for Hedley, where the current version of HEDLEY_NEVER_INLINE looks like:
#if \
HEDLEY_GNUC_HAS_ATTRIBUTE(noinline,4,0,0) || \
HEDLEY_INTEL_VERSION_CHECK(16,0,0) || \
HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
HEDLEY_TI_VERSION_CHECK(8,0,0) || \
(HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
# define HEDLEY_NEVER_INLINE __attribute__((__noinline__))
#elif HEDLEY_MSVC_VERSION_CHECK(13,10,0)
# define HEDLEY_NEVER_INLINE __declspec(noinline)
#elif HEDLEY_PGI_VERSION_CHECK(10,2,0)
# define HEDLEY_NEVER_INLINE _Pragma("noinline")
#elif HEDLEY_TI_VERSION_CHECK(6,0,0)
# define HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;")
#else
# define HEDLEY_NEVER_INLINE HEDLEY_INLINE
#endif
If you don't want to use Hedley (it's a single public domain / CC0 header) you can convert the version checking macros without too much effort, but more than I'm willing to put in ?.
To understand the rationale for this restriction, consider the following program:
public class Program {
interface Interface {
public void printInteger();
}
static Interface interfaceInstance = null;
static void initialize(int val) {
class Impl implements Interface {
@Override
public void printInteger() {
System.out.println(val);
}
}
interfaceInstance = new Impl();
}
public static void main(String[] args) {
initialize(12345);
interfaceInstance.printInteger();
}
}
The interfaceInstance remains in memory after the initialize method returns, but the parameter val does not. The JVM can’t access a local variable outside its scope, so Java makes the subsequent call to printInteger work by copying the value of val to an implicit field of the same name within interfaceInstance. The interfaceInstance is said to have captured the value of the local parameter. If the parameter weren’t final (or effectively final) its value could change, becoming out of sync with the captured value, potentially causing unintuitive behavior.
You can use the following code to generate a requirements.txt file:
pip install pipreqs
pipreqs /path/to/project
more info related to pipreqs can be found here.
Sometimes you come across pip freeze
, but this saves all packages in the environment including those that you don't use in your current project.
This is probably because an empty line at the end of your input file.
Try this:
for x in f:
try:
print int(x.strip(),16)
except ValueError:
print "Invalid input:", x
To support full urls with param/values you'd need:
?next={{ request.get_full_path|urlencode }}
instead of just:
?next={{ request.path }}
If is a package then you can get the source for that with:
select text from all_source where name = 'PADCAMPAIGN'
and type = 'PACKAGE BODY'
order by line;
Oracle doesn't store the source for a sub-program separately, so you need to look through the package source for it.
Note: I've assumed you didn't use double-quotes when creating that package, but if you did , then use
select text from all_source where name = 'pAdCampaign'
and type = 'PACKAGE BODY'
order by line;
Try this:
printf '\n%s\n' 'I want this on a new line!'
That allows you to separate the formatting from the actual text. You can use multiple placeholders and multiple arguments.
quantity=38; price=142.15; description='advanced widget'
$ printf '%8d%10.2f %s\n' "$quantity" "$price" "$description"
38 142.15 advanced widget
Use [NSIndexPath indexPathForRow:inSection:]
to quickly create an index path.
Edit: In Swift 3:
let indexPath = IndexPath(row: rowIndex, section: sectionIndex)
Swift 5
IndexPath(row: 0, section: 0)
You can just use:
> names(LIST)
[1] "A" "B"
Obviously the names of the first element is just
> names(LIST)[1]
[1] "A"
Signalling in Linux can be done with "kill" (man kill for the available signals), you'd need the process ID to do that. (ps ax | grep java) or something like that, or store the process id when the process gets created (this is used in most linux startup files, see /etc/init.d)
Portable signalling can be done by integrating a SocketServer in your java application. It's not that difficult and gives you the freedom to send any command you want.
If you meant finally clauses in stead of finalizers; they do not get extecuted when System.exit() is called. Finalizers should work, but shouldn't really do anything more significant but print a debug statement. They're dangerous.
Some answers are partially wrong, and some facts in them are partially wrong as well.
Answer your question: Yes! You can.
In Typescript
class A {
private a1;
private a2;
}
Generates the following code in Javascript:
var A = /** @class */ (function () {
function A() {
}
return A;
}());
as @Erik_Cupal said, you could just do:
let a = new A();
let array = return Object.getOwnPropertyNames(a);
But this is incomplete. What happens if your class has a custom constructor? You need to do a trick with Typescript because it will not compile. You need to assign as any:
let className:any = A;
let a = new className();// the members will have value undefined
A general solution will be:
class A {
private a1;
private a2;
constructor(a1:number, a2:string){
this.a1 = a1;
this.a2 = a2;
}
}
class Describer{
describeClass( typeOfClass:any){
let a = new typeOfClass();
let array = Object.getOwnPropertyNames(a);
return array;//you can apply any filter here
}
}
For better understanding this will reference depending on the context.
If you are using JDK 6 then you might want to check out ConcurrentHashMap
Note the putIfAbsent method in that class.
In ---- model:
Add use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
Change the class ----- extends Model
to class ----- extends Eloquent
There is obviously another process listening on the port. You might find out that process by using the following command:
$ lsof -i :8000
or change your tornado app's port. tornado's error info not Explicitly on this.
Try this:
let jsonArr = [
{
"_id":"5078c3a803ff4197dc81fbfb",
"email":"[email protected]",
"image":"some_image_url",
"name":"Name 1"
},
{
"_id":"5078c3a803ff4197dc81fbfc",
"email":"[email protected]",
"image":"some_image_url",
"name":"Name 2"
}
]
let idModified = jsonArr.map(
obj => {
return {
"id" : obj._id,
"email":obj.email,
"image":obj.image,
"name":obj.name
}
}
);
console.log(idModified);
When Array List contains object of Primitive DataType.
Use this function:
arrayList.contains(value);
if list contains that value then it will return true else false.
When Array List contains object of UserDefined DataType.
Follow this below Link
How to compare Objects attributes in an ArrayList?
I hope this solution will help you. Thanks
You could descendingly order the tabele by id and limit the number of results to one:
SELECT id FROM tablename ORDER BY id DESC LIMIT 1
BUT: ORDER BY
rearranges the entire table for this request. So if you have a lot of data and you need to repeat this operation several times, I would not recommend this solution.
They are not null if you don't initialize the struct.
Snapshot s; // receives no initialization
Snapshot s = {}; // value initializes all members
The second will make all members zero, the first leaves them at unspecified values. Note that it is recursive:
struct Parent { Snapshot s; };
Parent p; // receives no initialization
Parent p = {}; // value initializes all members
The second will make p.s.{x,y}
zero. You cannot use these aggregate initializer lists if you've got constructors in your struct. If that is the case, you will have to add proper initalization to those constructors
struct Snapshot {
int x;
double y;
Snapshot():x(0),y(0) { }
// other ctors / functions...
};
Will initialize both x and y to 0. Note that you can use x(), y()
to initialize them disregarding of their type: That's then value initialization, and usually yields a proper initial value (0 for int, 0.0 for double, calling the default constructor for user defined types that have user declared constructors, ...). This is important especially if your struct is a template.
Simply remove the .value
from your code.
Set envFrmwrkPath = ActiveSheet.Range("D6").Value
instead of this, use:
Set envFrmwrkPath = ActiveSheet.Range("D6")
One of the reason may be improper date/time of your PC.
In Ubuntu PC to check the date and time using:
date
Example, One of the ways to update date and time is:
date -s "23 MAR 2017 17:06:00"
since the data ex1221new was not given, so I have created a dummy data and added it to a data frame. Also, the question which was asked has few changes in codes like then ggplot package has deprecated the use of
"scale_area()" and nows uses scale_size_area()
"opts()" has changed to theme()
In my answer,I have stored the plot in mygraph variable and then I have used
mygraph$labels$x="Discharge of materials" #changes x axis title
mygraph$labels$y="Area Affected" # changes y axis title
And the work is done. Below is the complete answer.
install.packages("Sleuth2")
library(Sleuth2)
library(ggplot2)
ex1221new<-data.frame(Discharge<-c(100:109),Area<-c(120:129),NO3<-seq(2,5,length.out = 10))
discharge<-ex1221new$Discharge
area<-ex1221new$Area
nitrogen<-ex1221new$NO3
p <- ggplot(ex1221new, aes(discharge, area), main="Point")
mygraph<-p + geom_point(aes(size= nitrogen)) +
scale_size_area() + ggtitle("Weighted Scatterplot of Watershed Area vs. Discharge and Nitrogen Levels (PPM)")+
theme(
plot.title = element_text(color="Blue", size=30, hjust = 0.5),
# change the styling of both the axis simultaneously from this-
axis.title = element_text(color = "Green", size = 20, family="Courier",)
# you can change the axis title from the code below
mygraph$labels$x="Discharge of materials" #changes x axis title
mygraph$labels$y="Area Affected" # changes y axis title
mygraph
Also, you can change the labels title from the same formula used above -
mygraph$labels$size= "N2" #size contains the nitrogen level
Can also be called as
@Html.Partial("_PartialView", (ModelClass)View.Data)
Option Explicit
Const ConnectionStrngAccessPW As String = _"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:\Users\BARON\Desktop\Test_DB-PW.accdb;
Jet OLEDB:Database Password=123pass;"
Const ConnectionStrngAccess As String = _"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:\Users\BARON\Desktop\Test_DB.accdb;
Persist Security Info=False;"
'C:\Users\BARON\Desktop\Test.accdb
Sub ModifyingExistingDataOnAccessDB()
Dim TableConn As ADODB.Connection
Dim TableData As ADODB.Recordset
Set TableConn = New ADODB.Connection
Set TableData = New ADODB.Recordset
TableConn.ConnectionString = ConnectionStrngAccess
TableConn.Open
On Error GoTo CloseConnection
With TableData
.ActiveConnection = TableConn
'.Source = "SELECT Emp_Age FROM Roster WHERE Emp_Age > 40;"
.Source = "Roster"
.LockType = adLockOptimistic
.CursorType = adOpenForwardOnly
.Open
On Error GoTo CloseRecordset
Do Until .EOF
If .Fields("Emp_Age").Value > 40 Then
.Fields("Emp_Age").Value = 40
.Update
End If
.MoveNext
Loop
.MoveFirst
MsgBox "Update Complete"
End With
CloseRecordset:
TableData.CancelUpdate
TableData.Close
CloseConnection:
TableConn.Close
Set TableConn = Nothing
Set TableData = Nothing
End Sub
Sub AddingDataToAccessDB()
Dim TableConn As ADODB.Connection
Dim TableData As ADODB.Recordset
Dim r As Range
Set TableConn = New ADODB.Connection
Set TableData = New ADODB.Recordset
TableConn.ConnectionString = ConnectionStrngAccess
TableConn.Open
On Error GoTo CloseConnection
With TableData
.ActiveConnection = TableConn
.Source = "Roster"
.LockType = adLockOptimistic
.CursorType = adOpenForwardOnly
.Open
On Error GoTo CloseRecordset
Sheet3.Activate
For Each r In Range("B3", Range("B3").End(xlDown))
MsgBox "Adding " & r.Offset(0, 1)
.AddNew
.Fields("Emp_ID").Value = r.Offset(0, 0).Value
.Fields("Emp_Name").Value = r.Offset(0, 1).Value
.Fields("Emp_DOB").Value = r.Offset(0, 2).Value
.Fields("Emp_SOD").Value = r.Offset(0, 3).Value
.Fields("Emp_EOD").Value = r.Offset(0, 4).Value
.Fields("Emp_Age").Value = r.Offset(0, 5).Value
.Fields("Emp_Gender").Value = r.Offset(0, 6).Value
.Update
Next r
MsgBox "Update Complete"
End With
CloseRecordset:
TableData.Close
CloseConnection:
TableConn.Close
Set TableConn = Nothing
Set TableData = Nothing
End Sub
Take care about your angular version, if you work under angular 2.x.x so maybe you need to upgrade to angular 4.x.x
Some dependencies needs angular 4
Here is a tutorial for how to install angular 4 or update your project.
Out of memory in android application is very common if we not handle the bitmap properly, The solution for the problem would be
if(imageBitmap != null) {
imageBitmap.recycle();
imageBitmap = null;
}
System.gc();
BitmapFactory.Options options = new BitmapFactory.Options();
options.inSampleSize = 3;
imageBitmap = BitmapFactory.decodeFile(URI, options);
Bitmap scaledBitmap = Bitmap.createScaledBitmap(imageBitmap, 200, 200, true);
imageView.setImageBitmap(scaledBitmap);
In the above code Have just tried to recycle the bitmap which will allow you to free up the used memory space ,so out of memory may not happen.I have tried it worked for me.
If still facing the problem you can also add these line as well
BitmapFactory.Options options = new BitmapFactory.Options();
options.inTempStorage = new byte[16*1024];
options.inPurgeable = true;
for more information take a look at this link
NOTE: Due to the momentary "pause" caused by performing gc, it is not recommended to do this before each bitmap allocation.
Optimum design is:
Free all bitmaps that are no longer needed, by the if / recycle / null
code shown. (Make a method to help with that.)
System.gc();
Allocate the new bitmaps.
A version of John's answer above that removes the pesky NA's:
stderr <- function(x, na.rm=FALSE) {
if (na.rm) x <- na.omit(x)
sqrt(var(x)/length(x))
}
Somewhere the code--either your code or a jQuery plugin--is calling $.browser
to get the current browser type.
However, early has year the $.browser
function was deprecated. Since then some bugs have been filed against it but because it is deprecated, the jQuery team has decided not to fix them. I've decided not to rely on the function at all.
I don't see any references to $.browser
in your code, so the problem probably lies in one of your plugins. To find it, look at the source code for each plugin that you've referenced with a <script>
tag.
As for how to fix it: well, it depends on the context. E.g., maybe there's an updated version of the problematic plugin. Or perhaps you can use another plugin that does something similar but doesn't depend on $.browser
.
There are several options you can use. Quite good way is to use exceptions and class for handling called @ControllerAdvice
:
@ControllerAdvice
class GlobalControllerExceptionHandler {
@ResponseStatus(HttpStatus.CONFLICT) // 409
@ExceptionHandler(DataIntegrityViolationException.class)
public void handleConflict() {
// Nothing to do
}
}
Also you can pass HttpServletResponse
to controller method and just set response code:
public RestModel create(@RequestBody String data, HttpServletResponse response) {
// response committed...
response.setStatus(HttpServletResponse.SC_ACCEPTED);
}
Please refer to the this great blog post for details: Exception Handling in Spring MVC
In Spring MVC using @ResponseBody
annotation is redundant - it's already included in @RestController
annotation.
*data interprets arguments as tuples, instead you have to pass **data which interprets the arguments as dictionary.
data = {'school':'DAV', 'class': '7', 'name': 'abc', 'city': 'pune'}
def my_function(**data):
schoolname = data['school']
cityname = data['city']
standard = data['class']
studentname = data['name']
You can call the function like this:
my_function(**data)
If you want to copy the DataTable
to another DataTable
of different Schema Structure
then you can do this:
DataType
so that you can only get the structure.DataTable
. So:
Dim dt1 As New DataTable
dt1 = dtExcelData.Clone()
dt1.Columns(17).DataType = System.Type.GetType("System.Decimal")
dt1.Columns(26).DataType = System.Type.GetType("System.Decimal")
dt1.Columns(30).DataType = System.Type.GetType("System.Decimal")
dt1.Columns(35).DataType = System.Type.GetType("System.Decimal")
dt1.Columns(38).DataType = System.Type.GetType("System.Decimal")
dt1 = dtprevious.Copy()
Hence you get the same DataTable
but revised structure
Use
__DIR__
to get the current path of the script and this should fix your problem.
So:
require_once(__DIR__.'/../class/user.php');
This will prevent cases where you can run a PHP script from a different folder and therefore the relatives paths will not work.
Edit: slash problem fixed
Worked this out, turns out that android.R.color.black is not the same as Color.BLACK. Changed the code to:
Paint paint = new Paint();
paint.setColor(Color.WHITE);
paint.setStyle(Style.FILL);
canvas.drawPaint(paint);
paint.setColor(Color.BLACK);
paint.setTextSize(20);
canvas.drawText("Some Text", 10, 25, paint);
and it all works fine now!!
You can use both Font Awesome and Github Octicons as a free alternative for Glyphicons.
Bootstrap 4 also switched from Less to Sass, so you might integerate the font's Sass (SCSS) into you build process, to create a single CSS file for your projects.
Also see https://getbootstrap.com/docs/4.1/getting-started/build-tools/ to find out how to set up your tooling:
/bootstrap
directory and run npm install
to install our local dependencies listed in package.json.gem install bundler
, and finally run bundle install
. This will install all Ruby dependencies, such as Jekyll and plugins.Font Awesome
font-awesome/scss
folder into your /bootstrap folderOpen your SCSS /bootstrap/bootstrap.scss
and write down the following SCSS code at the end of this file:
$fa-font-path: "../fonts";
@import "../font-awesome/scss/font-awesome.scss";
Notice that you also have to copy the font file from font-awesome/fonts
to dist/fonts
or any other public folder set by $fa-font-path
in the previous step
npm run dist
to recompile your code with Font-AwesomeGithub Octicons
octicons
folder into your /bootstrap
folderOpen your SCSS /bootstrap/bootstrap.scss
and write down the following SCSS code at the end of this file:
$fa-font-path: "../fonts";
@import "../octicons/octicons/octicons.scss";
Notice that you also have to copy the font file from font-awesome/fonts
to dist/fonts
or any other public folder set by $fa-font-path
in the previous step
npm run dist
to recompile your code with OcticonsGlyphicons
On the Bootstrap website you can read:
Includes over 250 glyphs in font format from the Glyphicon Halflings set. Glyphicons Halflings are normally not available for free, but their creator has made them available for Bootstrap free of cost. As a thank you, we only ask that you include a link back to Glyphicons whenever possible.
As I understand you can use these 250 glyphs free of cost restricted for Bootstrap but not limited to version 3 exclusive. So you can use them for Bootstrap 4 too.
bootstrap/scss
folder$bootstrap-sass-asset-helper: false;
$icon-font-name: 'glyphicons-halflings-regular';
$icon-font-svg-id: 'glyphicons_halflingsregular';
$icon-font-path: '../fonts/';
@import "glyphicons";
npm run dist
to recompile your code with GlyphiconsNotice that Bootstrap 4 requires the post CSS Autoprefixer for compiling. When you are using a static Sass compiler to compile your CSS you should have to run the Autoprefixer afterwards.
You can find out more about mixing with the Bootstrap 4 SCSS in here.
You can also use Bower to install the fonts above. Using Bower Font Awesome installs your files in bower_components/components-font-awesome/
also notice that Github Octicons sets the octicons/octicons/octicons-.scss
as the main file whilst you should use octicons/octicons/sprockets-octicons.scss
.
All the above will compile all your CSS code including into a single file, which requires only one HTTP request. Alternatively you can also load the Font-Awesome font from CDN, which can be fast too in many situations. Both fonts on CDN also include the font files (using data-uri's, possible not supported for older browsers). So consider which solution best fits your situation depending on among others browsers to support.
For Font Awesome paste the following code into the <head>
section of your site's HTML:
<link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
Also try Yeoman generator to scaffold out a front-end Bootstrap 4 Web app to test Bootstrap 4 with Font Awesome or Github Octicons.
In gradle, after copying all files folders to libs/
jniLibs.srcDirs = ['libs']
Adding the above line to sourceSets
in build.gradle
file worked. Nothing else worked whatsoever.
You don't have any data that you're submitting! Try adding this line to your ajax:
data: $('form').serialize(),
Make sure you change the name to match!
Also your data should be submitted inside of a form submit function.
Your code should look something like this:
<script>_x000D_
$(function () {_x000D_
$('form').on('submit', function (e) {_x000D_
e.preventDefault();_x000D_
$.ajax({_x000D_
type: 'post',_x000D_
url: 'company.php',_x000D_
data: $('form').serialize(),_x000D_
success: function () {_x000D_
alert('form was submitted');_x000D_
}_x000D_
});_x000D_
});_x000D_
});_x000D_
</script>
_x000D_
First Import the package as :
import org.openqa.selenium.support.ui.Select;
then write in single line as:
new Select (driver.findElement(By.id("sampleid"))).selectByValue("SampleValue");
Depending on the number of endpoints you need it may be easier to do it manually.
I have tried 10 libraries "soap nodejs" I finally do it manually.
I will provide general Q&A-oriented answer for this question:
Answer to Questions
Why do we need XML parser?
We need XML parser because we do not want to do everything in our application from scratch, and we need some "helper" programs or libraries to do something very low-level but very necessary to us. These low-level but necessary things include checking the well-formedness, validating the document against its DTD or schema (just for validating parsers), resolving character reference, understanding CDATA sections, and so on. XML parsers are just such "helper" programs and they will do all these jobs. With XML parser, we are shielded from a lot of these complexities and we could concentrate ourselves on just programming at high-level through the API's implemented by the parsers, and thus gain programming efficiency.
Which one is better, SAX or DOM ?
Both SAX and DOM parser have their advantages and disadvantages. Which one is better should depend on the characteristics of your application (please refer to some questions below).
Which parser can get better speed, DOM or SAX parsers?
SAX parser can get better speed.
What's the difference between tree-based API and event-based API?
A tree-based API is centered around a tree structure and therefore provides interfaces on components of a tree (which is a DOM document) such as Document interface,Node interface, NodeList interface, Element interface, Attr interface and so on. By contrast, however, an event-based API provides interfaces on handlers. There are four handler interfaces, ContentHandler interface, DTDHandler interface, EntityResolver interface and ErrorHandler interface.
What is the difference between a DOM Parser and a SAX Parser?
DOM parsers and SAX parsers work in different ways:
A DOM parser creates a tree structure in memory from the input document and then waits for requests from client. But a SAX parser does not create any internal structure. Instead, it takes the occurrences of components of a input document as events, and tells the client what it reads as it reads through the input document. A
DOM parser always serves the client application with the entire document no matter how much is actually needed by the client. But a SAX parser serves the client application always only with pieces of the document at any given time.
How do we decide on which parser is good?
Ideally a good parser should be fast (time efficient),space efficient, rich in functionality and easy to use. But in reality, none of the main parsers have all these features at the same time. For example, a DOM Parser is rich in functionality (because it creates a DOM tree in memory and allows you to access any part of the document repeatedly and allows you to modify the DOM tree), but it is space inefficient when the document is huge, and it takes a little bit long to learn how to work with it. A SAX Parser, however, is much more space efficient in case of big input document (because it creates no internal structure). What's more, it runs faster and is easier to learn than DOM Parser because its API is really simple. But from the functionality point of view, it provides less functions which mean that the users themselves have to take care of more, such as creating their own data structures. By the way, what is a good parser? I think the answer really depends on the characteristics of your application.
What are some real world applications where using SAX parser is advantageous than using DOM parser and vice versa? What are the usual application for a DOM parser and for a SAX parser?
In the following cases, using SAX parser is advantageous than using DOM parser.
In the following cases, using DOM parser is advantageous than using SAX parser.
Example (Use a DOM parser or a SAX parser?):
Assume that an instructor has an XML document containing all the personal information of the students as well as the points his students made in his class, and he is now assigning final grades for the students using an application. What he wants to produce, is a list with the SSN and the grades. Also we assume that in his application, the instructor use no data structure such as arrays to store the student personal information and the points. If the instructor decides to give A's to those who earned the class average or above, and give B's to the others, then he'd better to use a DOM parser in his application. The reason is that he has no way to know how much is the class average before the entire document gets processed. What he probably need to do in his application, is first to look through all the students' points and compute the average, and then look through the document again and assign the final grade to each student by comparing the points he earned to the class average. If, however, the instructor adopts such a grading policy that the students who got 90 points or more, are assigned A's and the others are assigned B's, then probably he'd better use a SAX parser. The reason is, to assign each student a final grade, he do not need to wait for the entire document to be processed. He could immediately assign a grade to a student once the SAX parser reads the grade of this student. In the above analysis, we assumed that the instructor created no data structure of his own. What if he creates his own data structure, such as an array of strings to store the SSN and an array of integers to sto re the points ? In this case, I think SAX is a better choice, before this could save both memory and time as well, yet get the job done. Well, one more consideration on this example. What if what the instructor wants to do is not to print a list, but to save the original document back with the grade of each student updated ? In this case, a DOM parser should be a better choice no matter what grading policy he is adopting. He does not need to create any data structure of his own. What he needs to do is to first modify the DOM tree (i.e., set value to the 'grade' node) and then save the whole modified tree. If he choose to use a SAX parser instead of a DOM parser, then in this case he has to create a data structure which is almost as complicated as a DOM tree before he could get the job done.
Problem statement: Write a Java program to extract all the information about circles which are elements in a given XML document. We assume that each circle element has three child elements(i.e., x, y and radius) as well as a color attribute. A sample document is given below:
<?xml version="1.0"?>
<!DOCTYPE shapes [
<!ELEMENT shapes (circle)*>
<!ELEMENT circle (x,y,radius)>
<!ELEMENT x (#PCDATA)>
<!ELEMENT y (#PCDATA)>
<!ELEMENT radius (#PCDATA)>
<!ATTLIST circle color CDATA #IMPLIED>
]>
<shapes>
<circle color="BLUE">
<x>20</x>
<y>20</y>
<radius>20</radius>
</circle>
<circle color="RED" >
<x>40</x>
<y>40</y>
<radius>20</radius>
</circle>
</shapes>
Program with DOMparser
import java.io.*;
import org.w3c.dom.*;
import org.apache.xerces.parsers.DOMParser;
public class shapes_DOM {
static int numberOfCircles = 0; // total number of circles seen
static int x[] = new int[1000]; // X-coordinates of the centers
static int y[] = new int[1000]; // Y-coordinates of the centers
static int r[] = new int[1000]; // radius of the circle
static String color[] = new String[1000]; // colors of the circles
public static void main(String[] args) {
try{
// create a DOMParser
DOMParser parser=new DOMParser();
parser.parse(args[0]);
// get the DOM Document object
Document doc=parser.getDocument();
// get all the circle nodes
NodeList nodelist = doc.getElementsByTagName("circle");
numberOfCircles = nodelist.getLength();
// retrieve all info about the circles
for(int i=0; i<nodelist.getLength(); i++) {
// get one circle node
Node node = nodelist.item(i);
// get the color attribute
NamedNodeMap attrs = node.getAttributes();
if(attrs.getLength() > 0)
color[i]=(String)attrs.getNamedItem("color").getNodeValue();
// get the child nodes of a circle node
NodeList childnodelist = node.getChildNodes();
// get the x and y value
for(int j=0; j<childnodelist.getLength(); j++) {
Node childnode = childnodelist.item(j);
Node textnode = childnode.getFirstChild();//the only text node
String childnodename=childnode.getNodeName();
if(childnodename.equals("x"))
x[i]= Integer.parseInt(textnode.getNodeValue().trim());
else if(childnodename.equals("y"))
y[i]= Integer.parseInt(textnode.getNodeValue().trim());
else if(childnodename.equals("radius"))
r[i]= Integer.parseInt(textnode.getNodeValue().trim());
}
}
// print the result
System.out.println("circles="+numberOfCircles);
for(int i=0;i<numberOfCircles;i++) {
String line="";
line=line+"(x="+x[i]+",y="+y[i]+",r="+r[i]+",color="+color[i]+")";
System.out.println(line);
}
} catch (Exception e) {e.printStackTrace(System.err);}
}
}
Program with SAXparser
import java.io.*;
import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;
import org.apache.xerces.parsers.SAXParser;
public class shapes_SAX extends DefaultHandler {
static int numberOfCircles = 0; // total number of circles seen
static int x[] = new int[1000]; // X-coordinates of the centers
static int y[] = new int[1000]; // Y-coordinates of the centers
static int r[] = new int[1000]; // radius of the circle
static String color[] = new String[1000]; // colors of the circles
static int flagX=0; //to remember what element has occurred
static int flagY=0; //to remember what element has occurred
static int flagR=0; //to remember what element has occurred
// main method
public static void main(String[] args) {
try{
shapes_SAX SAXHandler = new shapes_SAX (); // an instance of this class
SAXParser parser=new SAXParser(); // create a SAXParser object
parser.setContentHandler(SAXHandler); // register with the ContentHandler
parser.parse(args[0]);
} catch (Exception e) {e.printStackTrace(System.err);} // catch exeptions
}
// override the startElement() method
public void startElement(String uri, String localName,
String rawName, Attributes attributes) {
if(rawName.equals("circle")) // if a circle element is seen
color[numberOfCircles]=attributes.getValue("color"); // get the color attribute
else if(rawName.equals("x")) // if a x element is seen set the flag as 1
flagX=1;
else if(rawName.equals("y")) // if a y element is seen set the flag as 2
flagY=1;
else if(rawName.equals("radius")) // if a radius element is seen set the flag as 3
flagR=1;
}
// override the endElement() method
public void endElement(String uri, String localName, String rawName) {
// in this example we do not need to do anything else here
if(rawName.equals("circle")) // if a circle element is ended
numberOfCircles += 1; // increment the counter
}
// override the characters() method
public void characters(char characters[], int start, int length) {
String characterData =
(new String(characters,start,length)).trim(); // get the text
if(flagX==1) { // indicate this text is for <x> element
x[numberOfCircles] = Integer.parseInt(characterData);
flagX=0;
}
else if(flagY==1) { // indicate this text is for <y> element
y[numberOfCircles] = Integer.parseInt(characterData);
flagY=0;
}
else if(flagR==1) { // indicate this text is for <radius> element
r[numberOfCircles] = Integer.parseInt(characterData);
flagR=0;
}
}
// override the endDocument() method
public void endDocument() {
// when the end of document is seen, just print the circle info
System.out.println("circles="+numberOfCircles);
for(int i=0;i<numberOfCircles;i++) {
String line="";
line=line+"(x="+x[i]+",y="+y[i]+",r="+r[i]+",color="+color[i]+")";
System.out.println(line);
}
}
}
I don't like exceptions thus I used the matches
function from String-Class
text.textProperty().addListener(new ChangeListener<String>() {
@Override
public void changed(ObservableValue<? extends String> observable, String oldValue,
String newValue) {
if (newValue.matches("\\d*")) {
int value = Integer.parseInt(newValue);
} else {
text.setText(oldValue);
}
}
});
If you're looking to paginate results, use the integrated paginator, it works great!
$games = Game::paginate(30);
// $games->results = the 30 you asked for
// $games->links() = the links to next, previous, etc pages
import time
startTime = time.time()
# Your code here !
print ('The script took {0} second !'.format(time.time() - startTime))
The previous code works for me with no problem !
Only "keyboard focusable" elements can be focused with .focus()
. div
aren't meant to be natively focusable. You have to add tabindex="0"
attributes to it to achieve that. input
, button
, a
etc... are natively focusable.
To manually generate a Certificate, you need a Certificate Signing Request (CSR) file from your Mac. To create a CSR file, follow the instructions below to create one using Keychain Access.
Create a CSR file. In the Applications folder on your Mac, open the Utilities folder and launch Keychain Access.
Within the Keychain Access drop down menu, select Keychain Access > Certificate Assistant > Request a Certificate from a Certificate Authority.
In the Certificate Information window, enter the following information: In the User Email Address field, enter your email address. In the Common Name field, create a name for your private key (e.g., John Doe Dev Key). The CA Email Address field should be left empty. In the "Request is" group, select the "Saved to disk" option. Click Continue within Keychain Access to complete the CSR generating process.
As Unwind points out f and g provide different default outputs.
Roughly speaking if you care more about the details of what comes after the decimal point I would do with f and if you want to scale for large numbers go with g. From some dusty memories f is very nice with small values if your printing tables of numbers as everything stays lined up but something like g is needed if you stand a change of your numbers getting large and your layout matters. e is more useful when your numbers tend to be very small or very large but never near ten.
An alternative is to specify the output format so that you get the same number of characters representing your number every time.
Sorry for the woolly answer but it is a subjective out put thing that only gets hard answers if the number of characters generated is important or the precision of the represented value.
You can use git-credential-store to store your passwords unencrypted on the disk, protected only by the permissions of the file system.
Example
$ git config credential.helper store
$ git push http://example.com/repo.git
Username: <type your username>
Password: <type your password>
[several days later]
$ git push http://example.com/repo.git
[your credentials are used automatically]
You can check the credentials stored in the file ~/.git-credentials
For more info visit git-credential-store - Helper to store credentials on disk
How to specify the JDK version?
Use any of three ways: (1) Spring Boot feature, or use Maven compiler plugin with either (2) source
& target
or (3) with release
.
<java.version>
is not referenced in the Maven documentation.
It is a Spring Boot specificity.
It allows to set the source and the target java version with the same version such as this one to specify java 1.8 for both :
Feel free to use it if you use Spring Boot.
maven-compiler-plugin
with source
& target
maven-compiler-plugin
or maven.compiler.source
/maven.compiler.target
properties are equivalent.That is indeed :
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
is equivalent to :
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
according to the Maven documentation of the compiler plugin
since the <source>
and the <target>
elements in the compiler configuration use the properties maven.compiler.source
and maven.compiler.target
if they are defined.
The
-source
argument for the Java compiler.
Default value is:1.6
.
User property is:maven.compiler.source
.
The
-target
argument for the Java compiler.
Default value is:1.6
.
User property is:maven.compiler.target
.
About the default values for source
and target
, note that
since the 3.8.0
of the maven compiler, the default values have changed from 1.5
to 1.6
.
maven-compiler-plugin
with release
instead of source
& target
The maven-compiler-plugin 3.6
and later versions provide a new way :
You could also declare just :
<properties>
<maven.compiler.release>9</maven.compiler.release>
</properties>
But at this time it will not work as the maven-compiler-plugin
default version you use doesn't rely on a recent enough version.
The Maven release
argument conveys release
: a new JVM standard option that we could pass from Java 9 :
Compiles against the public, supported and documented API for a specific VM version.
This way provides a standard way to specify the same version for the source
, the target
and the bootstrap
JVM options.
Note that specifying the bootstrap
is a good practice for cross compilations and it will not hurt if you don't make cross compilations either.
Which is the best way to specify the JDK version?
The first way (<java.version>
) is allowed only if you use Spring Boot.
For Java 8 and below :
About the two other ways : valuing the maven.compiler.source
/maven.compiler.target
properties or using the maven-compiler-plugin
, you can use one or the other. It changes nothing in the facts since finally the two solutions rely on the same properties and the same mechanism : the maven core compiler plugin.
Well, if you don't need to specify other properties or behavior than Java versions in the compiler plugin, using this way makes more sense as this is more concise:
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
From Java 9 :
The release
argument (third point) is a way to strongly consider if you want to use the same version for the source and the target.
What happens if the version differs between the JDK in JAVA_HOME and which one specified in the pom.xml?
It is not a problem if the JDK referenced by the JAVA_HOME
is compatible with the version specified in the pom but to ensure a better cross-compilation compatibility think about adding the bootstrap
JVM option with as value the path of the rt.jar
of the target
version.
An important thing to consider is that the source
and the target
version in the Maven configuration should not be superior to the JDK version referenced by the JAVA_HOME
.
A older version of the JDK cannot compile with a more recent version since it doesn't know its specification.
To get information about the source, target and release supported versions according to the used JDK, please refer to java compilation : source, target and release supported versions.
How handle the case of JDK referenced by the JAVA_HOME is not compatible with the java target and/or source versions specified in the pom?
For example, if your JAVA_HOME
refers to a JDK 1.7 and you specify a JDK 1.8 as source and target in the compiler configuration of your pom.xml, it will be a problem because as explained, the JDK 1.7 doesn't know how to compile with.
From its point of view, it is an unknown JDK version since it was released after it.
In this case, you should configure the Maven compiler plugin to specify the JDK in this way :
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
<compilerVersion>1.8</compilerVersion>
<fork>true</fork>
<executable>D:\jdk1.8\bin\javac</executable>
</configuration>
</plugin>
You could have more details in examples with maven compiler plugin.
It is not asked but cases where that may be more complicated is when you specify source but not target. It may use a different version in target according to the source version. Rules are particular : you can read about them in the Cross-Compilation Options part.
Why the compiler plugin is traced in the output at the execution of the Maven package
goal even if you don't specify it in the pom.xml?
To compile your code and more generally to perform all tasks required for a maven goal, Maven needs tools. So, it uses core Maven plugins (you recognize a core Maven plugin by its groupId
: org.apache.maven.plugins
) to do the required tasks : compiler plugin for compiling classes, test plugin for executing tests, and so for... So, even if you don't declare these plugins, they are bound to the execution of the Maven lifecycle.
At the root dir of your Maven project, you can run the command : mvn help:effective-pom
to get the final pom effectively used. You could see among other information, attached plugins by Maven (specified or not in your pom.xml), with the used version, their configuration and the executed goals for each phase of the lifecycle.
In the output of the mvn help:effective-pom
command, you could see the declaration of these core plugins in the <build><plugins>
element, for example :
...
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>2.5</version>
<executions>
<execution>
<id>default-clean</id>
<phase>clean</phase>
<goals>
<goal>clean</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>default-testResources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testResources</goal>
</goals>
</execution>
<execution>
<id>default-resources</id>
<phase>process-resources</phase>
<goals>
<goal>resources</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<executions>
<execution>
<id>default-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>default-testCompile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
...
You can have more information about it in the introduction of the Maven lifeycle in the Maven documentation.
Nevertheless, you can declare these plugins when you want to configure them with other values as default values (for example, you did it when you declared the maven-compiler plugin in your pom.xml to adjust the JDK version to use) or when you want to add some plugin executions not used by default in the Maven lifecycle.
Correct way to check for null or empty or string containing only spaces is like this:
if(str != null && !str.trim().isEmpty()) { /* do your stuffs here */ }
Compatibility with older browsers can be a drag, so be adviced.
If that is not a problem then go ahead. Run the snippet. Go to full page view and resize. Center will resize itself with no changes to the left or right divs.
Change left and right values to meet your requirement.
Thank you.
Hope this helps.
#container {_x000D_
display: flex;_x000D_
}_x000D_
_x000D_
.column.left {_x000D_
width: 100px;_x000D_
flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.right {_x000D_
width: 100px;_x000D_
flex: 0 0 100px;_x000D_
}_x000D_
_x000D_
.column.center {_x000D_
flex: 1;_x000D_
text-align: center;_x000D_
}_x000D_
_x000D_
.column.left,_x000D_
.column.right {_x000D_
background: orange;_x000D_
text-align: center;_x000D_
}
_x000D_
<div id="container">_x000D_
<div class="column left">this is left</div>_x000D_
<div class="column center">this is center</div>_x000D_
<div class="column right">this is right</div>_x000D_
</div>
_x000D_
parseDouble
returns a primitive double containing the value of the string:
Returns a new double initialized to the value represented by the specified String, as performed by the valueOf method of class Double.
valueOf
returns a Double instance, if already cached, you'll get the same cached instance.
Returns a Double instance representing the specified double value. If a new Double instance is not required, this method should generally be used in preference to the constructor Double(double), as this method is likely to yield significantly better space and time performance by caching frequently requested values.
To avoid the overhead of creating a new Double object instance, you should normally use valueOf
Mutex in essence is a lock, providing protected access to shared resources. Under Linux, the thread mutex data type is pthread_mutex_t. Before use, initialize it.
To access to shared resources, you have to lock on the mutex. If the mutex already on the lock, the call will block the thread until the mutex is unlocked. Upon completion of the visit to shared resources, you have to unlock them.
Overall, there are a few unwritten basic principles:
Obtain the lock before using the shared resources.
Holding the lock as short time as possible.
Release the lock if the thread returns an error.
Use this html to get the clicked element:
<div class="row" style="padding-left:21px;">
<ul class="nav nav-tabs" style="padding-left:40px;">
<li class="active filter"><a href="#month" onclick="Data('month', this)">This Month</a></li>
<li class="filter"><a href="#year" onclick="Data('year', this)">Year</a></li>
<li class="filter"><a href="#last60" onclick="Data('last60', this)">60 Days</a></li>
<li class="filter"><a href="#last90" onclick="Data('last90', this)">90 Days</a></li>
</ul>
</div>
Script:
function Data(string, el)
{
$('.filter').removeClass('active');
$(el).parent().addClass('active');
}
After some limited testing with Spring 3.2, it seems one can use a SpEL list: {..., ..., ...}
. This can also include null
values. Spring passes the list as the key to the actual cache implementation. When using Ehcache, such will at some point invoke List#hashCode(), which takes all its items into account. (I am not sure if Ehcache only relies on the hash code.)
I use this for a shared cache, in which I include the method name in the key as well, which the Spring default key generator does not include. This way I can easily wipe the (single) cache, without (too much...) risking matching keys for different methods. Like:
@Cacheable(value="bookCache",
key="{ #root.methodName, #isbn?.id, #checkWarehouse }")
public Book findBook(ISBN isbn, boolean checkWarehouse)
...
@Cacheable(value="bookCache",
key="{ #root.methodName, #asin, #checkWarehouse }")
public Book findBookByAmazonId(String asin, boolean checkWarehouse)
...
Of course, if many methods need this and you're always using all parameters for your key, then one can also define a custom key generator that includes the class and method name:
<cache:annotation-driven mode="..." key-generator="cacheKeyGenerator" />
<bean id="cacheKeyGenerator" class="net.example.cache.CacheKeyGenerator" />
...with:
public class CacheKeyGenerator
implements org.springframework.cache.interceptor.KeyGenerator {
@Override
public Object generate(final Object target, final Method method,
final Object... params) {
final List<Object> key = new ArrayList<>();
key.add(method.getDeclaringClass().getName());
key.add(method.getName());
for (final Object o : params) {
key.add(o);
}
return key;
}
}
This function will be used get the data from url in form of HttpResponse object.
public HttpResponse getRespose(String url, String your_auth_code){
HttpClient client = new DefaultHttpClient();
HttpPost postForGetMethod = new HttpPost(url);
postForGetMethod.addHeader("Content-type", "Application/JSON");
postForGetMethod.addHeader("Authorization", your_auth_code);
return client.execute(postForGetMethod);
}
Above function is called here and we receive a String form of the json using the Apache library Class.And in following statements we try to make simple pojo out of the json we received.
String jsonString =
EntityUtils.toString(getResponse("http://echo.jsontest.com/title/ipsum/content/ blah","Your_auth_if_you_need_one").getEntity(), "UTF-8");
final GsonBuilder gsonBuilder = new GsonBuilder();
gsonBuilder.registerTypeAdapter(JsonJavaModel .class, new CustomJsonDeserialiser());
final Gson gson = gsonBuilder.create();
JsonElement json = new JsonParser().parse(jsonString);
JsonJavaModel pojoModel = gson.fromJson(
jsonElementForJavaObject, JsonJavaModel.class);
This is a simple java model class for incomming json. public class JsonJavaModel{ String content; String title; } This is a custom deserialiser:
public class CustomJsonDeserialiserimplements JsonDeserializer<JsonJavaModel> {
@Override
public JsonJavaModel deserialize(JsonElement json, Type type,
JsonDeserializationContext arg2) throws JsonParseException {
final JsonJavaModel jsonJavaModel= new JsonJavaModel();
JsonObject object = json.getAsJsonObject();
try {
jsonJavaModel.content = object.get("Content").getAsString()
jsonJavaModel.title = object.get("Title").getAsString()
} catch (Exception e) {
e.printStackTrace();
}
return jsonJavaModel;
}
Include Gson library and org.apache.http.util.EntityUtils;
I have redesigned the code for phone numbers +9 (987) 124124 Extract digits from a string in Java
public static String stripNonDigitsV2( CharSequence input ) {
if (input == null)
return null;
if ( input.length() == 0 )
return "";
char[] result = new char[input.length()];
int cursor = 0;
CharBuffer buffer = CharBuffer.wrap( input );
int i=0;
while ( i< buffer.length() ) { //buffer.hasRemaining()
char chr = buffer.get(i);
if (chr=='u'){
i=i+5;
chr=buffer.get(i);
}
if ( chr > 39 && chr < 58 )
result[cursor++] = chr;
i=i+1;
}
return new String( result, 0, cursor );
}
//HashSet allows only the unique values to the list
HashSet<int> uniqueList = new HashSet<int>();
var a = uniqueList.Add(1);
var b = uniqueList.Add(2);
var c = uniqueList.Add(3);
var d = uniqueList.Add(2); // should not be added to the list but will not crash the app
//Dictionary allows only the unique Keys to the list, Values can be repeated
Dictionary<int, string> dict = new Dictionary<int, string>();
dict.Add(1,"Happy");
dict.Add(2, "Smile");
dict.Add(3, "Happy");
dict.Add(2, "Sad"); // should be failed // Run time error "An item with the same key has already been added." App will crash
//Dictionary allows only the unique Keys to the list, Values can be repeated
Dictionary<string, int> dictRev = new Dictionary<string, int>();
dictRev.Add("Happy", 1);
dictRev.Add("Smile", 2);
dictRev.Add("Happy", 3); // should be failed // Run time error "An item with the same key has already been added." App will crash
dictRev.Add("Sad", 2);
I know this is a little bit of necromancy, but you should use the Android AccountManager. It's purpose-built for this scenario. It's a little bit cumbersome but one of the things it does is invalidate the local credentials if the SIM card changes, so if somebody swipes your phone and throws a new SIM in it, your credentials won't be compromised.
This also gives the user a quick and easy way to access (and potentially delete) the stored credentials for any account they have on the device, all from one place.
SampleSyncAdapter is an example that makes use of stored account credentials.
You get a nice header output with the following command:
curl -L -v -s -o /dev/null google.de
-L, --location
follow redirects-v, --verbose
more output, indicates the direction-s, --silent
don't show a progress bar-o, --output /dev/null
don't show received bodyOr the shorter version:
curl -Lvso /dev/null google.de
Results in:
* Rebuilt URL to: google.de/
* Trying 2a00:1450:4008:802::2003...
* Connected to google.de (2a00:1450:4008:802::2003) port 80 (#0)
> GET / HTTP/1.1
> Host: google.de
> User-Agent: curl/7.43.0
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Location: http://www.google.de/
< Content-Type: text/html; charset=UTF-8
< Date: Fri, 12 Aug 2016 15:45:36 GMT
< Expires: Sun, 11 Sep 2016 15:45:36 GMT
< Cache-Control: public, max-age=2592000
< Server: gws
< Content-Length: 218
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
<
* Ignoring the response-body
{ [218 bytes data]
* Connection #0 to host google.de left intact
* Issue another request to this URL: 'http://www.google.de/'
* Trying 2a00:1450:4008:800::2003...
* Connected to www.google.de (2a00:1450:4008:800::2003) port 80 (#1)
> GET / HTTP/1.1
> Host: www.google.de
> User-Agent: curl/7.43.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Fri, 12 Aug 2016 15:45:36 GMT
< Expires: -1
< Cache-Control: private, max-age=0
< Content-Type: text/html; charset=ISO-8859-1
< P3P: CP="This is not a P3P policy! See https://www.google.com/support/accounts/answer/151657?hl=en for more info."
< Server: gws
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
< Set-Cookie: NID=84=Z0WT_INFoDbf_0FIe_uHqzL9mf3DMSQs0mHyTEDAQOGY2sOrQaKVgN2domEw8frXvo4I3x3QVLqCH340HME3t1-6gNu8R-ArecuaneSURXNxSXYMhW2kBIE8Duty-_w7; expires=Sat, 11-Feb-2017 15:45:36 GMT; path=/; domain=.google.de; HttpOnly
< Accept-Ranges: none
< Vary: Accept-Encoding
< Transfer-Encoding: chunked
<
{ [11080 bytes data]
* Connection #1 to host www.google.de left intact
As you can see curl
outputs both the outgoing and the incoming headers and skips the bodydata althought telling you how big the body is.
Additionally for every line the direction is indicated so that it is easy to read. I found it particular useful to trace down long chains of redirects.
I have a case scenario and I tried all the answers from above, but always new image was created on top of the old one. The solution that worked for me is:
imageView.setImageResource(R.drawable.image);
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File (sdCard.getAbsolutePath() + "/dir1/dir2");
dir.mkdirs();
File file = new File(dir, "filename");
FileOutputStream f = new FileOutputStream(file);
...
The code below is the simplest solution:
Bitmap bt = new Bitmap("imageFilePath");
for (int y = 0; y < bt.Height; y++)
{
for (int x = 0; x < bt.Width; x++)
{
Color c = bt.GetPixel(x, y);
int r = c.R;
int g = c.G;
int b = c.B;
int avg = (r + g + b) / 3;
bt.SetPixel(x, y, Color.FromArgb(avg,avg,avg));
}
}
bt.Save("d:\\out.bmp");
OS X Homebrew (May 2015):
The intl
extension has been removed from the main php5x
formulas, so you no longer compile with the --enable-intl
flag.
If you can't find the new package:
$ brew install php56-intl
Error: No available formula for php56-intl
Follow these instructions: https://github.com/Homebrew/homebrew-php/issues/1701
$ brew install php56-intl
==> Installing php56-intl from homebrew/homebrew-php
How about you just write you own? The core of the PE architecture hasn't been seriously changed since its implementation in Windows 95. Here's a C# example:
public static ushort GetPEArchitecture(string pFilePath)
{
ushort architecture = 0;
try
{
using (System.IO.FileStream fStream = new System.IO.FileStream(pFilePath, System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
using (System.IO.BinaryReader bReader = new System.IO.BinaryReader(fStream))
{
if (bReader.ReadUInt16() == 23117) //check the MZ signature
{
fStream.Seek(0x3A, System.IO.SeekOrigin.Current); //seek to e_lfanew.
fStream.Seek(bReader.ReadUInt32(), System.IO.SeekOrigin.Begin); //seek to the start of the NT header.
if (bReader.ReadUInt32() == 17744) //check the PE\0\0 signature.
{
fStream.Seek(20, System.IO.SeekOrigin.Current); //seek past the file header,
architecture = bReader.ReadUInt16(); //read the magic number of the optional header.
}
}
}
}
}
catch (Exception) { /* TODO: Any exception handling you want to do, personally I just take 0 as a sign of failure */}
//if architecture returns 0, there has been an error.
return architecture;
}
}
Now the current constants are:
0x10B - PE32 format.
0x20B - PE32+ format.
But with this method it allows for the possibilities of new constants, just validate the return as you see fit.
Taking the answer from @Petr Stastny a step further by adding a password variable. I'd prefer if it actually took it in like a regular password rather than as an argument, but it's working for what I needed.
#!/bin/bash
# mycollate.sh <database> <password> [<charset> <collation>]
# changes MySQL/MariaDB charset and collation for one database - all tables and
# all columns in all tables
DB="$1"
PW="$2"
CHARSET="$3"
COLL="$4"
[ -n "$DB" ] || exit 1
[ -n "$PW" ]
[ -n "$CHARSET" ] || CHARSET="utf8mb4"
[ -n "$COLL" ] || COLL="utf8mb4_bin"
PW="--password=""$PW"
echo $DB
echo "ALTER DATABASE $DB CHARACTER SET $CHARSET COLLATE $COLL;" | mysql -u root "$PW"
echo "USE $DB; SHOW TABLES;" | mysql -s "$PW" | (
while read TABLE; do
echo $DB.$TABLE
echo "ALTER TABLE $TABLE CONVERT TO CHARACTER SET $CHARSET COLLATE $COLL;" | mysql "$PW" $DB
done
)
PW="pleaseEmptyMeNow"
Download Lombok Jar, let’s maven do the download on our behalf :
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.16.18</version>
</dependency>
Now... mvn clean install command on the newly created project to get this jar downloaded in local repository. Goto the jar location, execute the command prompt, run the command : java -jar lombok-1.16.18.jar
click on the “Specify Location” button and locate the eclipse.exe path LIKE :
finally install this by clicking the “Install/Update”
Yes, it's possible, e.g. using the implicit conversion from RAW to BLOB:
insert into blob_fun values(1, hextoraw('453d7a34'));
453d7a34
is a string of hexadecimal values, which is first explicitly converted to the RAW data type and then inserted into the BLOB column. The result is a BLOB value of 4 bytes.
The following does not return a response:
You must return anything like return afunction()
or return 'a string'
.
This can solve the issue
Step1: git rebase -i HEAD~n
to do interactive rebase for the last n
commits affected. (i.e. if you want to change a commit message 3 commits back, do git rebase -i HEAD~3
)
git will pop up an editor to handle those commits, notice this command:
# r, reword = use commit, but edit the commit message
that is exactly we need!
Step2: Change pick
to r
for those commits that you want to update the message. Don't bother changing the commit message here, it will be ignored. You'll do that on the next step. Save and close the editor.
Note that if you edit your rebase 'plan' yet it doesn't begin the process of letting you rename the files, run:
git rebase --continue
If you want to change the text editor used for the interactive session (e.g. from the default vi to nano), run:
GIT_EDITOR=nano git rebase -i HEAD~n
Step3: Git will pop up another editor for every revision you put r
before. Update the commit msg as you like, then save and close the editor.
Step4: After all commits msgs are updated. you might want to do git push -f
to update the remote.
You record audio and video using the same MediaRecorder class. It's pretty simple. Here's an example.
This is the most simple, and it worked for me:
In the values-21:
<resources>
<style name="AppTheme" parent="AppTheme.Base">
...
<item name="android:windowTranslucentStatus">true</item>
</style>
<dimen name="topMargin">25dp</dimen>
</resources>
In the values:
<resources>
<dimen name="topMargin">0dp</dimen>
</resources>
And set to your toolbar
android:layout_marginTop="@dimen/topMargin"
I appreciate the tips I found on this site.
But, on my Windows 10, I had to use double quotes for this to work ...
sed -i "s/[\d128-\d255]//g" FILENAME
Noticed these things ...
For FILENAME the entire path\name needs to be quoted
This didn't work -- %TEMP%\"FILENAME"
This did -- %TEMP%\FILENAME"
sed leaves behind temp files in the current directory, named sed*
to use parameters in aliases, i use this method:
alias myalias='function __myalias() { echo "Hello $*"; unset -f __myalias; }; __myalias'
its a self-destructive function wrapped in an alias, so it pretty much is the best of both worlds, and doesnt take up an extra line(s) in your definitions... which i hate, oh yeah and if you need that return value, you'll have to store it before calling unset, and then return the value using the "return" keyword in that self destructive function there:
alias myalias='function __myalias() { echo "Hello $*"; myresult=$?; unset -f __myalias; return $myresult; }; __myalias'
so..
you could, if you need to have that variable in there
alias mongodb='function __mongodb() { ./path/to/mongodb/$1; unset -f __mongodb; }; __mongodb'
of course...
alias mongodb='./path/to/mongodb/'
would actually do the same thing without the need for parameters, but like i said, if you wanted or needed them for some reason (for example, you needed $2 instead of $1), you would need to use a wrapper like that. If it is bigger than one line you might consider just writing a function outright since it would become more of an eyesore as it grew larger. Functions are great since you get all the perks that functions give (see completion, traps, bind, etc for the goodies that functions can provide, in the bash manpage).
I hope that helps you out :)
What I have done in the past is declare my inner class collections using IList<Class>
, ICollection<Class>
or IEnumerable<Class>
(if static list) depending on whether or not I will have to do any number of the following in a method in my repository: enumerate, sort/order or modify. When I just need to enumerate (and maybe sort) over objects then I create a temp List<Class>
to work with the collection within an IEnumerable method. I think this practice would only be effective if the collection is relatively small, but it may be good practice in general, idk. Please correct me if there is evidence as to why this would not good practice.
If you have an association on a property pointing to the user (let's say Credit\Entity\UserCreditHistory#user
, picked from your example), then the syntax is quite simple:
public function getHistory($users) {
$qb = $this->entityManager->createQueryBuilder();
$qb
->select('a', 'u')
->from('Credit\Entity\UserCreditHistory', 'a')
->leftJoin('a.user', 'u')
->where('u = :user')
->setParameter('user', $users)
->orderBy('a.created_at', 'DESC');
return $qb->getQuery()->getResult();
}
Since you are applying a condition on the joined result here, using a LEFT JOIN
or simply JOIN
is the same.
If no association is available, then the query looks like following
public function getHistory($users) {
$qb = $this->entityManager->createQueryBuilder();
$qb
->select('a', 'u')
->from('Credit\Entity\UserCreditHistory', 'a')
->leftJoin(
'User\Entity\User',
'u',
\Doctrine\ORM\Query\Expr\Join::WITH,
'a.user = u.id'
)
->where('u = :user')
->setParameter('user', $users)
->orderBy('a.created_at', 'DESC');
return $qb->getQuery()->getResult();
}
This will produce a resultset that looks like following:
array(
array(
0 => UserCreditHistory instance,
1 => Userinstance,
),
array(
0 => UserCreditHistory instance,
1 => Userinstance,
),
// ...
)
Inline is not actually the inline we maybe require - i.e. display:inline
Bootstrap inline as far as I observer is more of a horizontal orientation
To display the list inline with other elements then we do need
display: inline; added to the UL
<ul class="unstyled inline" style="display:inline">
NB// Add to stylesheet
FileStream fs= File.Create(ConfigurationManager.AppSettings["file"]);
fs.Close();
Here's an example that includes initialising the show/hide to match the state of the checkbox when the page loads; taking account of the fact that firefox remembers the state of checkboxes when you refresh the page, but won't remember the state of the shown/hidden elements.
$(function() {
// initialise visibility when page is loaded
$('tr.invoiceItemRow').toggle($('#showInvoiceItems').attr('checked'));
// attach click handler to checkbox
$('#showInvoiceItems').click(function(){ $('tr.invoiceItemRow').toggle(this.checked);})
});
(with help from other answers on this question)
You can use find
with tabs-to-spaces
package for this.
First, install tabs-to-spaces
npm install -g tabs-to-spaces
then, run this command from the root directory of your project;
find . -name '*' -exec t2s --spaces 2 {} \;
This will replace every tab
character with 2 spaces
in every file.
if you open the psql
console in a terminal window, by typing
$ psql
you're super user username will be shown before the =#
, for example:
elisechant=#
$
That will be the user name you should use for localhost.
End of the user session means when the browser is shut down.
Read this: http://en.wikipedia.org/wiki/HTTP_cookie#Expires_and_Max-Age
Boolean
wrapper is useful when you want to whether value was assigned or not apart from true
and false
. It has the following three states:
null
Whereas boolean
has only two states:
The above difference will make it helpful in Lists of Boolean
values, which can have True
, False
or Null
.