You would need to do something like this. I am typing this off the top of my head, so this may not be 100% correct.
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB(); CGContextRef context = CGBitmapContextCreate(NULL, 640, 360, 8, 4 * width, colorSpace, kCGImageAlphaPremultipliedFirst); CGColorSpaceRelease(colorSpace); CGContextDrawImage(context, CGRectMake(0,-160,640,360), cgImgFromAVCaptureSession); CGImageRef image = CGBitmapContextCreateImage(context); UIImage* myCroppedImg = [UIImage imageWithCGImage:image]; CGContextRelease(context);
in swift 4 to convert to url use URL
let fileUrl = URL.init(fileURLWithPath: filePath)
or
let fileUrl = URL(fileURLWithPath: filePath)
This work's very well.. hope it help's someone !
-(IBAction)flashlight:(id)sender {
AVCaptureDevice *device = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
if ([device hasTorch] && [device hasFlash]){
if (device.torchMode == AVCaptureTorchModeOff) {
[sender setTitle:@"Torch Off" forState:UIControlStateNormal];
AVCaptureDeviceInput *flashInput = [AVCaptureDeviceInput deviceInputWithDevice:device error: nil];
AVCaptureVideoDataOutput *output = [[AVCaptureVideoDataOutput alloc] init];
AVCaptureSession *cam = [[AVCaptureSession alloc] init];
[cam beginConfiguration];
[device lockForConfiguration:nil];
[device setTorchMode:AVCaptureTorchModeOn];
[device setFlashMode:AVCaptureFlashModeOn];
[cam addInput:flashInput];
[cam addOutput:output];
[device unlockForConfiguration];
[cam commitConfiguration];
[cam startRunning];
[self setTorchSession:cam];
}
else {
[sender setTitle:@"Torch On" forState:UIControlStateNormal];
[_torchSession stopRunning];
}
}
}
Obviously you can't parse N/A
to int
value. you can do something like following to handle that NumberFormatException
.
String str="N/A";
try {
int val=Integer.parseInt(str);
}catch (NumberFormatException e){
System.out.println("not a number");
}
String str;
String path = "C:/Users/...the path..../iin.txt"; // you can input also..i created this way :P
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
PrintWriter pw = new PrintWriter(new FileWriter(path, true));
try
{
while(true)
{
System.out.println("Enter the text : ");
str = br.readLine();
if(str.equalsIgnoreCase("exit"))
break;
else
pw.println(str);
}
}
catch (Exception e)
{
//oh noes!
}
finally
{
pw.close();
}
this will do what you intend for..
There are various ways to achieve this. Here are three.
Map<String, String> map = new HashMap<String, String>();
map.put("key1", "value1");
map.put("key2", "value2");
map.put("key3", "value3");
System.out.println("using entrySet and toString");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry);
}
System.out.println();
System.out.println("using entrySet and manual string creation");
for (Entry<String, String> entry : map.entrySet()) {
System.out.println(entry.getKey() + "=" + entry.getValue());
}
System.out.println();
System.out.println("using keySet");
for (String key : map.keySet()) {
System.out.println(key + "=" + map.get(key));
}
System.out.println();
using entrySet and toString
key1=value1
key2=value2
key3=value3
using entrySet and manual string creation
key1=value1
key2=value2
key3=value3
using keySet
key1=value1
key2=value2
key3=value3
Check whether you have stated [TestFixureSetUp] and [Test]
in the test class
sample:
namespace ClassLibrary1
{
public class SimpleCalculator
{
public Calculator _calculator;
[TestFixtureSetUp]
public void initialize()
{
_calculator = new Calculator();
}
[Test]
public void DivideTest()
{
int a = 10;
int b = 2;
int expectedValue = a/b;
int actualValue = _calculator.Divide(a, b);
Assert.AreEqual(expectedValue, actualValue, "Functionality not working properly!");
}
}
}
Had a similar problem where we wanted to update from deprecated Http module to HttpClient in Angular 7. But the application is large and need to change res.json() in a lot of places. So I did this to have the new module with back support.
return this.http.get(this.BASE_URL + url)
.toPromise()
.then(data=>{
let res = {'results': JSON.stringify(data),
'json': ()=>{return data;}
};
return res;
})
.catch(error => {
return Promise.reject(error);
});
Adding a dummy "json" named function from the central place so that all other services can still execute successfully before updating them to accommodate a new way of response handling i.e. without "json" function.
First you must create an empty figure with the following command.
figure('name','Title of the window here');
By doing this, the newly created figure becomes you active figure. Immediately after calling a plot()
command, it will print your plotting onto this figure. So your window will have a title.
This is the code you must use:
figure('name','Title of the window here');
hold on
x = [0; 0.2; 0.4; 0.6; 0.8; 1; 1.2; 1.4; 1.6; 1.8; 2; 2.2; 2.4; 2.6; 2.8; 3; 3.2; 3.4; 3.6; 3.8; 4; 4.2; 4.4; 4.6; 4.8; 5; 5.2; 5.4; 5.6; 5.8; 6; 6.2; 6.4; 6.6; 6.8; 7; 7.2; 7.4; 7.6; 7.8; 8; 8.2; 8.4; 8.6; 8.8; 9; 9.2; 9.4; 9.6; 9.8; 10; 10.2; 10.4; 10.6; 10.8; 11; 11.2; 11.4; 11.6; 11.8; 12; 12.2; 12.4; 12.6; 12.8; 13; 13.2; 13.4; 13.6; 13.8; 14; 14.2; 14.4; 14.6; 14.8; 15; 15.2; 15.4; 15.6; 15.8; 16; 16.2; 16.4; 16.6; 16.8; 17; 17.2; 17.4; 17.6; 17.8; 18; 18.2; 18.4; 18.6; 18.8];
y = [0; 0.198669; 0.389418; 0.564642; 0.717356; 0.841471; 0.932039; 0.98545; 0.999574; 0.973848; 0.909297; 0.808496; 0.675463; 0.515501; 0.334988; 0.14112; -0.0583741; -0.255541; -0.44252; -0.611858; -0.756802; -0.871576; -0.951602; -0.993691; -0.996165; -0.958924; -0.883455; -0.772764; -0.631267; -0.464602; -0.279415; -0.0830894; 0.116549; 0.311541; 0.494113; 0.656987; 0.793668; 0.898708; 0.96792; 0.998543; 0.989358; 0.940731; 0.854599; 0.734397; 0.584917; 0.412118; 0.22289; 0.0247754; -0.174327; -0.366479; -0.544021; -0.699875; -0.827826; -0.922775; -0.980936; -0.99999; -0.979178; -0.919329; -0.822829; -0.693525; -0.536573; -0.358229; -0.165604; 0.033623; 0.23151; 0.420167; 0.592074; 0.740376; 0.859162; 0.943696; 0.990607; 0.998027; 0.965658; 0.894791; 0.788252; 0.650288; 0.486399; 0.303118; 0.107754; -0.0919069; -0.287903; -0.472422; -0.638107; -0.778352; -0.887567; -0.961397; -0.9969; -0.992659; -0.948844; -0.867202; -0.750987; -0.604833; -0.434566; -0.246974; -0.0495356];
plot(x, y, '--b');
x = [0; 0.2; 0.4; 0.6; 0.8; 1; 1.2; 1.4; 1.6; 1.8; 2; 2.2; 2.4; 2.6; 2.8; 3; 3.2; 3.4; 3.6; 3.8; 4; 4.2; 4.4; 4.6; 4.8; 5; 5.2; 5.4; 5.6; 5.8; 6; 6.2; 6.4; 6.6; 6.8; 7; 7.2; 7.4; 7.6; 7.8; 8; 8.2; 8.4; 8.6; 8.8; 9; 9.2; 9.4; 9.6; 9.8; 10; 10.2; 10.4; 10.6; 10.8; 11; 11.2; 11.4; 11.6; 11.8; 12; 12.2; 12.4; 12.6; 12.8; 13; 13.2; 13.4; 13.6; 13.8; 14; 14.2; 14.4; 14.6; 14.8; 15; 15.2; 15.4; 15.6; 15.8; 16; 16.2; 16.4; 16.6; 16.8; 17; 17.2; 17.4; 17.6; 17.8; 18; 18.2; 18.4; 18.6; 18.8];
y = [-1; -0.980133; -0.921324; -0.825918; -0.697718; -0.541836; -0.364485; -0.172736; 0.0257666; 0.223109; 0.411423; 0.583203; 0.731599; 0.850695; 0.935744; 0.983355; 0.991629; 0.960238; 0.890432; 0.784994; 0.648128; 0.48529; 0.302972; 0.108443; -0.0905427; -0.286052; -0.470289; -0.635911; -0.776314; -0.885901; -0.960303; -0.996554; -0.993208; -0.950399; -0.869833; -0.754723; -0.609658; -0.44042; -0.253757; -0.057111; 0.141679; 0.334688; 0.514221; 0.673121; 0.805052; 0.904756; 0.968256; 0.993023; 0.978068; 0.923987; 0.832937; 0.708548; 0.555778; 0.380717; 0.190346; -0.00774649; -0.205663; -0.395514; -0.56973; -0.721365; -0.844375; -0.933855; -0.986238; -0.999436; -0.972923; -0.907755; -0.806531; -0.673287; -0.513333; -0.333047; -0.139617; 0.0592467; 0.255615; 0.44166; 0.609964; 0.753818; 0.867487; 0.946439; 0.987526; 0.989111; 0.95113; 0.875097; 0.764044; 0.622398; 0.455806; 0.27091; 0.0750802; -0.123876; -0.318026; -0.499631; -0.66145; -0.797032; -0.900972; -0.969126; -0.998776];
plot(x, y, '-r');
hold off
title('My plot title');
xlabel('My x-axis title');
ylabel('My y-axis title');
The commit message is a best practice that should be followed at all times. Unless you're the only developer and that isn't going to change any time soon.
git commit -a -m 'asdfasdfadsfsdf'
27
is the code for the escape key. :)
String str= "somestring";
String[] values = str.split("\\D+");
To stop Jenkins Please avoid shutting down the Java process or the Windows service. These are not usual commands. Use those only if your Jenkins is causing problems.
Use Jenkins' way to stop that protects from data loss.
http://[jenkins-server]/[command]
where [command] can be any one of the following
Example: if my local PC is running Jenkins at port 8080, it will be
http://localhost:8080/exit
It's really a 6 of one, a half-dozen of the other situation.
The only possible argument against your approach is $_SERVER['REQUEST_METHOD'] == 'POST' may not be populated on certain web-servers/configuration, whereas the $_POST array will always exist in PHP4/PHP5 (and if it doesn't exist, you have bigger problems (-:)
According to this site add
CONFIG += c++11
to your .pro file (see at the bottom of that web page). It requires Qt 5.
The other answers, suggesting
QMAKE_CXXFLAGS += -std=c++11
(or QMAKE_CXXFLAGS += -std=c++0x
)
also work with Qt 4.8 and gcc / clang.
DESCRIBE DATABASE NAME; you need to specify the name of the database and the results will include the data type of each attribute.
Define function in protocol and create extension for that protocol, then create empty implementation for function which you want to use as optional.
Because "append" existed long before "pop" was thought of. Python 0.9.1 supported list.append in early 1991. By comparison, here's part of a discussion on comp.lang.python about adding pop in 1997. Guido wrote:
To implement a stack, one would need to add a list.pop() primitive (and no, I'm not against this particular one on the basis of any principle). list.push() could be added for symmetry with list.pop() but I'm not a big fan of multiple names for the same operation -- sooner or later you're going to read code that uses the other one, so you need to learn both, which is more cognitive load.
You can also see he discusses the idea of if push/pop/put/pull should be at element [0] or after element [-1] where he posts a reference to Icon's list:
I stil think that all this is best left out of the list object implementation -- if you need a stack, or a queue, with particular semantics, write a little class that uses a lists
In other words, for stacks implemented directly as Python lists, which already supports fast append(), and del list[-1], it makes sense that list.pop() work by default on the last element. Even if other languages do it differently.
Implicit here is that most people need to append to a list, but many fewer have occasion to treat lists as stacks, which is why list.append came in so much earlier.
Here is my regex for validating numbers:
^(-?[1-9]+\\d*([.]\\d+)?)$|^(-?0[.]\\d*[1-9]+)$|^0$
Valid numbers:
String []validNumbers={"3","-3","0","0.0","1.0","0.1","0.0001","-555","94549870965"};
Invalid numbers:
String []invalidNumbers={"a",""," ","-","001","-00.2","000.5",".3","3."," -1","--1","-.1","-0"};
The empty string is false as a rule.
Apparently the empty string is not respected as empty in all browsers and the presence of the checked attribute is taken to mean checked. So the entire attribute must either be present or omitted.
I have created step by step instructions on how to do this as I also was very confused about how to get this working.
How to make a self extracting archive that runs your setup.exe with 7zip -sfx switch
Here are the steps.
To make this easy create a folder c:\Install. This is where we will copy all the required files.
You need to download 7zSD.sfx
7zSD.sfx
in the bin
folder.I would recommend using NotePad++ to edit this text file as you will need to encode in UTF-8, the following instructions are using notepad++.
Enter something like this:
;!@Install@!UTF-8!
Title="SOFTWARE v1.0.0.0"
BeginPrompt="Do you want to install SOFTWARE v1.0.0.0?"
RunProgram="setup.exe"
;!@InstallEnd@!
Edit this replacing [SOFTWARE v1.0.0.0] with your product name. Notes on the parameters and options for the setup file are here.
You should now have a folder "c:\Install" with the following 3 files:
These instructions I found on the web but nowhere did it explain any of the 4 steps above.
In the command window type the following
cd \
cd Install
copy /b 7zSD.sfx + config.txt + Installer.7z MyInstaller.exe
Look in c:\Install and you will now see you have a MyInstaller.exe
Double click on MyInstaller.exe and it will prompt with your message. Click OK and the setup.exe will run.
Now that you have this working in your c:\Install directory I would create an "Install.bat" file and put the copy script in it.
copy /b 7zSD.sfx + config.txt + Installer.7z MyInstaller.exe
Now you can just edit and run the Install.bat every time you need to rebuild a new version of you deployment package.
The -nc
, --no-clobber
option isn't the best solution as newer files will not be downloaded. One should use -N
instead which will download and overwrite the file only if the server has a newer version, so the correct answer is:
wget -N http://www.example.com/images/misc/pic.png
Then running Wget with -N, with or without
-r
or-p
, the decision as to whether or not to download a newer copy of a file depends on the local and remote timestamp and size of the file.-nc
may not be specified at the same time as-N
.
-N
,--timestamping
: Turn on time-stamping.
Here is one way which I like because it makes the input fill out the whole container. The trick is the "font-size: 100px", and it need to go with the "overflow: hidden" and the relative position.
<div id="upload-file-container" >
<input type="file" />
</div>
#upload-file-container {
width: 200px;
height: 50px;
position: relative;
border: dashed 1px black;
overflow: hidden;
}
#upload-file-container input[type="file"]
{
margin: 0;
opacity: 0;
font-size: 100px;
}
See http://mikehadlow.blogspot.com/2012/07/tracing-systemnet-to-debug-http-clients.html
To configure a System.Net listener to output to both the console and a log file, add the following to your assembly configuration file:
<system.diagnostics>
<trace autoflush="true" />
<sources>
<source name="System.Net">
<listeners>
<add name="MyTraceFile"/>
<add name="MyConsole"/>
</listeners>
</source>
</sources>
<sharedListeners>
<add
name="MyTraceFile"
type="System.Diagnostics.TextWriterTraceListener"
initializeData="System.Net.trace.log" />
<add name="MyConsole" type="System.Diagnostics.ConsoleTraceListener" />
</sharedListeners>
<switches>
<add name="System.Net" value="Verbose" />
</switches>
</system.diagnostics>
Please use this
var listbox = document.getElementById("yourdropdownid");
var selIndex = listbox.selectedIndex;
var selValue = listbox.options[selIndex].value;
var selText = listbox.options[selIndex].text;
Then Please alert "selValue" and "selText". You get your selected dropdown value and text
I'm using this:
$("form:first *:input,select,textarea").filter(":not([readonly='readonly']):not([disabled='disabled']):not([type='hidden'])").first().focus();
This code gives you an error because your Add
function needs to be static
:
static public int Add(int x, int y)
In C# there is a distinction between functions that operate on instances (non-static) and functions that do not operate on instances (static). Instance functions can call other instance functions and static functions because they have an implicit reference to the instance. In contrast, static functions can call only static functions, or else they must explicitly provide an instance on which to call a non-static function.
Since public static void Main(string[] args)
is static, all functions that it calls need to be static as well.
Actually, you can also do it with the iteration method. Because sometimes we might need to use the iteration method instead of the built-in epochs method to visualize the training results after each iteration.
history = [] #Creating a empty list for holding the loss later
for iteration in range(1, 3):
print()
print('-' * 50)
print('Iteration', iteration)
result = model.fit(X, y, batch_size=128, nb_epoch=1) #Obtaining the loss after each training
history.append(result.history['loss']) #Now append the loss after the training to the list.
start_index = random.randint(0, len(text) - maxlen - 1)
print(history)
This way allows you to get the loss you want while maintaining your iteration method.
Adding this here as it doesn't seem to be here.
Aside from the excellent solution of form.append("blob",blob, filename);
you can also turn the blob into a File
instance:
var blob = new Blob([JSON.stringify([0,1,2])], {type : 'application/json'});
var fileOfBlob = new File([blob], 'aFileName.json');
form.append("upload", fileOfBlob);
Try this: it shows when is 'dragged' state. ;) fiddle link
$(function() {
var isDragging = false;
$("#status").html("status:");
$("a")
.mousedown(function() {
$("#status").html("status: DRAGGED");
})
.mouseup(function() {
$("#status").html("status: dropped");
});
$("ul").sortable();
});
//You might want to add some scripts if your software doesn't support jQuery or giving any reference type error.
//Use above scripts only if the software you are working on doesn't support jQuery.
$(document).ready(function() { //Change the location of your mp3 or any music file. var source = "../Assets/music.mp3"; var audio = new Audio(); audio.src = source; audio.autoplay = true; });It depends on what you define as the difference. To compare two dates at midnight you can do.
long day1 = ...; // in milliseconds.
long day2 = ...; // in milliseconds.
long days = (day2 - day1) / 86400000;
You can use Object.assign()
to merge them into a new object:
const response = {_x000D_
lat: -51.3303,_x000D_
lng: 0.39440_x000D_
}_x000D_
_x000D_
const item = {_x000D_
id: 'qwenhee-9763ae-lenfya',_x000D_
address: '14-22 Elder St, London, E1 6BT, UK'_x000D_
}_x000D_
_x000D_
const newItem = Object.assign({}, item, { location: response });_x000D_
_x000D_
console.log(newItem );
_x000D_
You can also use object spread, which is a Stage 4 proposal for ECMAScript:
const response = {_x000D_
lat: -51.3303,_x000D_
lng: 0.39440_x000D_
}_x000D_
_x000D_
const item = {_x000D_
id: 'qwenhee-9763ae-lenfya',_x000D_
address: '14-22 Elder St, London, E1 6BT, UK'_x000D_
}_x000D_
_x000D_
const newItem = { ...item, location: response }; // or { ...response } if you want to clone response as well_x000D_
_x000D_
console.log(newItem );
_x000D_
In C++11 and beyond, you can use the back
member function:
char ch = myStr.back();
In C++03, std::string::back
is not available due to an oversight, but you can get around this by dereferencing the reverse_iterator
you get back from rbegin
:
char ch = *myStr.rbegin();
In both cases, be careful to make sure the string actually has at least one character in it! Otherwise, you'll get undefined behavior, which is a Bad Thing.
Hope this helps!
I have the problem because I updated Java version.
The following steps work for me:
- Run
\Tomcat\bin\tomcat7w.exe
- Confirm "Startup" tab -> "Mode" choose "jvm"
- "Java" tab -> update "Java Virtual Machine" path to new version path
- Restart Tomcat
Done.
for localhost,the defaut port is 8080,you can test the link http://localhost:8080 in you browser.if you can see tomcat home page,your tomcat is running
brew should not require you to use sudo even when running npm with -g. This might actually create more problems down the road.
Typically, brew or port let you update you path so it doesn't risk messing up your .zshrc, .bashrc, .cshrc, or whatever flavor of shell you use.
A span tag is only as wide as its contents, so there is no 'center' of a span tag. There is no extra space on either side of the content.
A div tag, however, is as wide as its containing element, so the content of that div can be centered using any extra space that the content doesn't take up.
So if your div is 100px width and your content only takes 50px, the browser will divide the remaining 50px by 2 and pad 25px on each side of your content to center it.
No, it is generally not possible. Once some CSS (or HTML) code sets a value for a property on an element, there is no way to undo it and tell the browser to use its default value.
It is of course possible to set a property a value that you expect to be the default value. This may work rather widely if you check the Rendering section of HTML5 CR, mostly reflecting what browsers actually do.
Still, the answer is “No”, because browsers may have whatever default values they like. You should analyze what was the reason for wanting to reset to defaults; the original problem may still be solvable.
A fix and elaboration of @Fredrik Mörk answer.
strings.resx
Resource file to your project (or a different filename)Access Modifier
to Public
(in the opened strings.resx
file tab)Hello
, value Hello
)Visual Studio auto-generates a respective strings
class, which is actually placed in strings.Designer.cs
. The class is in the same namespace that you would expect a newly created .cs
file to be placed in.
This code always prints Hello
, because this is the default resource and no language-specific resources are available:
Console.WriteLine(strings.Hello);
Now add a new language-specific resource:
strings.fr.resx
(for French)Hello
, value Salut
)The following code prints Salut
:
Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo("fr-FR");
Console.WriteLine(strings.Hello);
What resource is used depends on Thread.CurrentThread.CurrentUICulture
. It is set depending on Windows UI language setting, or can be set manually like in this example. Learn more about this here.
You can add country-specific resources like strings.fr-FR.resx
or strings.fr-CA.resx
.
The string to be used is determined in this priority order:
strings.fr-CA.resx
strings.fr.resx
strings.resx
Note that language-specific resources generate satellite assemblies.
Also learn how CurrentCulture
differs from CurrentUICulture
here.
Here's pure javascript example of handling classes during scrolling.
You'd probably want to throttle handling scroll events, more so as handler logic gets more complex, in that case throttle
from lodash
lib comes in handy.
And if you're doing spa, keep in mind that you need to clear event listeners with removeEventListener
once they're not needed (eg during onDestroy
lifecycle hook of your component, like destroyed()
for Vue, or maybe return function of useEffect
hook for React).
const navbar = document.getElementById('navbar')_x000D_
_x000D_
// OnScroll event handler_x000D_
const onScroll = () => {_x000D_
_x000D_
// Get scroll value_x000D_
const scroll = document.documentElement.scrollTop_x000D_
_x000D_
// If scroll value is more than 0 - add class_x000D_
if (scroll > 0) {_x000D_
navbar.classList.add("scrolled");_x000D_
} else {_x000D_
navbar.classList.remove("scrolled")_x000D_
}_x000D_
}_x000D_
_x000D_
// Optional - throttling onScroll handler at 100ms with lodash_x000D_
const throttledOnScroll = _.throttle(onScroll, 100, {})_x000D_
_x000D_
// Use either onScroll or throttledOnScroll_x000D_
window.addEventListener('scroll', onScroll)
_x000D_
#navbar {_x000D_
position: fixed;_x000D_
top: 0;_x000D_
left: 0;_x000D_
right: 0;_x000D_
width: 100%;_x000D_
height: 60px;_x000D_
background-color: #89d0f7;_x000D_
box-shadow: 0px 5px 0px rgba(0, 0, 0, 0);_x000D_
transition: box-shadow 500ms;_x000D_
}_x000D_
_x000D_
#navbar.scrolled {_x000D_
box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.25);_x000D_
}_x000D_
_x000D_
#content {_x000D_
height: 3000px;_x000D_
margin-top: 60px;_x000D_
}
_x000D_
<!-- Optional - lodash library, used for throttlin onScroll handler-->_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>_x000D_
<header id="navbar"></header>_x000D_
<div id="content"></div>
_x000D_
I believe you need to do this:
Option 2 Convert to the date format pointed out in Jon Skeet's answer and use that.
this is my approach about this. however I believe that the best solution is the answer from the user username tbd
var i = 0
var sum = 0
let example = 0
for elements in multiples{
i = i + 1
sum = multiples[ (i- 1)]
example = sum + example
}
Make sure that you have removed the comment tag and changed your JAVA_HOME
in the hadoop-env.sh
as well as the appropriate .bashrc
and/or .profile
:
# export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk
should be
export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk
You can set your JAVA_HOME
and PATH
for all users (make sure you haven't previously set this to the wrong path) in /etc/profile
.
Also, don't forget to activate the new change by logging-out/in or by executing source /etc/profile
.
It can be even more trivial than what the other posters suggested: if you have multiple projects make sure you did not create the xml layout file in the wrong project.
After creation, the file will open automatically so this might go unnoticed and you assume it is in the correct project. Obviously any references to drawables or other resources will be invalid.
And yes, I am that stupid. I'll close any unused projects from now on :)
I needed to edit a file with restricted write permissions so needed sudo
. working from ghostdog74's answer and using a temp file:
awk 'FNR==NR && /configs.*projectname\.conf/{f=1;next}f==0;END{ if(!f) { print "your line"}} ' file > /tmp/file
sudo mv /tmp/file file
Easiest way which I've found, supports all android versions
Arrays.sort(series1Numbers);
int maxSeries = Integer.parseInt(String.valueOf(series1Numbers[series1Numbers.length-1]));
use tableObject.Select(queryExpression, sortOrderExpression)
to select data in sorted manner
Complete working example - can be tested in a console application:
using System;
using System.Data;
namespace A
{
class Program
{
static void Main(string[] args)
{
DataTable table = new DataTable("Orders");
table.Columns.Add("OrderID", typeof(Int32));
table.Columns.Add("OrderQuantity", typeof(Int32));
table.Columns.Add("CompanyName", typeof(string));
table.Columns.Add("Date", typeof(DateTime));
DataRow newRow = table.NewRow();
newRow["OrderID"] = 1;
newRow["OrderQuantity"] = 3;
newRow["CompanyName"] = "NewCompanyName";
newRow["Date"] = "1979, 1, 31";
// Add the row to the rows collection.
table.Rows.Add(newRow);
DataRow newRow2 = table.NewRow();
newRow2["OrderID"] = 2;
newRow2["OrderQuantity"] = 2;
newRow2["CompanyName"] = "NewCompanyName1";
table.Rows.Add(newRow2);
DataRow newRow3 = table.NewRow();
newRow3["OrderID"] = 3;
newRow3["OrderQuantity"] = 2;
newRow3["CompanyName"] = "NewCompanyName2";
table.Rows.Add(newRow3);
DataRow[] foundRows;
Console.WriteLine("Original table's CompanyNames");
Console.WriteLine("************************************");
foundRows = table.Select();
// Print column 0 of each returned row.
for (int i = 0; i < foundRows.Length; i++)
Console.WriteLine(foundRows[i][2]);
// Presuming the DataTable has a column named Date.
string expression = "Date = '1/31/1979' or OrderID = 2";
// string expression = "OrderQuantity = 2 and OrderID = 2";
// Sort descending by column named CompanyName.
string sortOrder = "CompanyName ASC";
Console.WriteLine("\nCompanyNames data for Date = '1/31/1979' or OrderID = 2, sorted CompanyName ASC");
Console.WriteLine("************************************");
// Use the Select method to find all rows matching the filter.
foundRows = table.Select(expression, sortOrder);
// Print column 0 of each returned row.
for (int i = 0; i < foundRows.Length; i++)
Console.WriteLine(foundRows[i][2]);
Console.ReadKey();
}
}
}
It works, but I wouldn't do it if I were you. You don't seem to be deleting that heap data when you're done, which means that you've created a memory leak. The C++ compiler takes care of ensuring that exception data is kept alive even as the stack is popped, so don't feel that you need to use the heap.
Incidentally, throwing a std::string
isn't the best approach to begin with. You'll have a lot more flexibility down the road if you use a simple wrapper object. It may just encapsulate a string
for now, but maybe in future you will want to include other information, like some data which caused the exception or maybe a line number (very common, that). You don't want to change all of your exception handling in every spot in your code-base, so take the high road now and don't throw raw objects.
i have been working on Apachi Axis1.1 and Axis2.0 and JAX-WS but i would suggest you must JAX-WS because it allow you make wsdl in any format , i was making operation as GetInquiry() in Apache Axis2 it did not allow me to Start Operation name in Upper Case , so i find it not good , so i would suggest you must use JAX-WS
Modern browsers implement something known as back-forward cache (BFCache). When you hit back/forward button the actual page is not reloaded (and the scripts are never re-run).
If you have to do something in case of user hitting back/forward keys - listen for BFCache pageshow
and pagehide
events:
window.addEventListener("pageshow", () => {
// update hidden input field
});
CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(1);
See Here for more details.
Or
DateTime dt = DateTime.Now;
Console.WriteLine( dt.ToString( "MMMM" ) );
Or if you want to get the culture-specific abbreviated name.
GetAbbreviatedMonthName(1);
you want to use include_once() or require_once(). The other option would be to create an additional file with all your class includes in the correct order so they don't need to call includes themselves:
"classes.php"
include 'database.php';
include 'parent.php';
include 'child1.php';
include 'child2.php';
Then you just need:
require_once('classes.php');
To remove untracked files / directories do:
git clean -fdx
-f - force
-d - directories too
-x - remove ignored files too ( don't use this if you don't want to remove ignored files)
Use with Caution!
These commands can permanently delete arbitrary files, that you havn't thought of at first. Please double check and read all the comments below this answer and the --help section, etc., so to know all details to fine-tune your commands and surely get the expected result.
I'm using this and works fine
SELECT * FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_NAME LIKE '%%'
There is also another solution to the problem by implementing a layer-list that will act as the background for the LinearLayoout.
Add background_with_shadow.xml file to res/drawable
. Containing:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item >
<shape
android:shape="rectangle">
<solid android:color="@android:color/darker_gray" />
<corners android:radius="5dp"/>
</shape>
</item>
<item android:right="1dp" android:left="1dp" android:bottom="2dp">
<shape
android:shape="rectangle">
<solid android:color="@android:color/white"/>
<corners android:radius="5dp"/>
</shape>
</item>
</layer-list>
Then add the the layer-list as background in your LinearLayout.
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@drawable/background_with_shadow"/>
I would check your alpha channel on your gradient colors. For me, when I was testing my code out I had the alpha channel set wrong on the colors and it did not work for me. Once I got the alpha channel set it all worked!
I am not a cron specialist, but how about:
0 */72 * * *
It will run every 72 hours non-interrupted.
Use replace
method of strings not strip
:
s = s.replace(',','')
An example:
>>> s = 'Foo, bar'
>>> s.replace(',',' ')
'Foo bar'
>>> s.replace(',','')
'Foo bar'
>>> s.strip(',') # clears the ','s at the start and end of the string which there are none
'Foo, bar'
>>> s.strip(',') == s
True
Following Works for me and its good from readability point of view when array element values are small:
key: [string1, string2, string3, string4, string5, string6]
Note:snakeyaml implementation used
This is an IndexError
in python, which means that we're trying to access an index which isn't there in the tensor. Below is a very simple example to understand this error.
# create an empty array of dimension `0`
In [14]: arr = np.array([], dtype=np.int64)
# check its shape
In [15]: arr.shape
Out[15]: (0,)
with this array arr
in place, if we now try to assign any value to some index, for example to the index 0
as in the case below
In [16]: arr[0] = 23
Then, we will get an IndexError
, as below:
IndexError Traceback (most recent call last) <ipython-input-16-0891244a3c59> in <module> ----> 1 arr[0] = 23 IndexError: index 0 is out of bounds for axis 0 with size 0
The reason is that we are trying to access an index (here at 0th position), which is not there (i.e. it doesn't exist because we have an array of size 0
).
In [19]: arr.size * arr.itemsize
Out[19]: 0
So, in essence, such an array is useless and cannot be used for storing anything. Thus, in your code, you've to follow the traceback and look for the place where you're creating an array/tensor of size 0
and fix that.
You could also install the package with pip by using this command:
pip install git+https://github.com/rthalley/dnspython
You can update all outdated packages like so:
brew install `brew outdated`
or
brew outdated | xargs brew install
or
brew upgrade
This is from the brew site..
for upgrading individual formula:
brew install formula-name && brew cleanup formula-name
github gist https://gist.github.com/anjia0532/da4a17f848468de5a374c860b17607e7
#set $token "?"; # deprecated
set $token ""; # declar token is ""(empty str) for original request without args,because $is_args concat any var will be `?`
if ($is_args) { # if the request has args update token to "&"
set $token "&";
}
location /test {
set $args "${args}${token}k1=v1&k2=v2"; # update original append custom params with $token
# if no args $is_args is empty str,else it's "?"
# http is scheme
# service is upstream server
#proxy_pass http://service/$uri$is_args$args; # deprecated remove `/`
proxy_pass http://service$uri$is_args$args; # proxy pass
}
#http://localhost/test?foo=bar ==> http://service/test?foo=bar&k1=v1&k2=v2
#http://localhost/test/ ==> http://service/test?k1=v1&k2=v2
Other cases
io.of('/chat').on('connection', function (socket) {
//sending to all clients in 'room' and you
io.of('/chat').in('room').emit('message', "data");
};
Compare string with value from index
private void selectSpinnerValue(Spinner spinner, String myString)
{
int index = 0;
for(int i = 0; i < spinner.getCount(); i++){
if(spinner.getItemAtPosition(i).toString().equals(myString)){
spinner.setSelection(i);
break;
}
}
}
get today no time:
SELECT dateadd(day,datediff(day,0,GETDATE()),0)
get yestersday no time:
SELECT dateadd(day,datediff(day,1,GETDATE()),0)
query for all of rows from only yesterday:
select
*
from yourTable
WHERE YourDate >= dateadd(day,datediff(day,1,GETDATE()),0)
AND YourDate < dateadd(day,datediff(day,0,GETDATE()),0)
Partial Class _Default
Inherits System.Web.UI.Page
Dim str As String
Protected Sub Page_Disposed(sender As Object, e As System.EventArgs) Handles Me.Disposed
str += "PAGE DISPOSED" & "<br />"
End Sub
Protected Sub Page_Error(sender As Object, e As System.EventArgs) Handles Me.Error
str += "PAGE ERROR " & "<br />"
End Sub
Protected Sub Page_Init(sender As Object, e As System.EventArgs) Handles Me.Init
str += "PAGE INIT " & "<br />"
End Sub
Protected Sub Page_InitComplete(sender As Object, e As System.EventArgs) Handles Me.InitComplete
str += "INIT Complte " & "<br />"
End Sub
Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
str += "PAGE LOAD " & "<br />"
End Sub
Protected Sub Page_LoadComplete(sender As Object, e As System.EventArgs) Handles Me.LoadComplete
str += "PAGE LOAD Complete " & "<br />"
End Sub
Protected Sub Page_PreInit(sender As Object, e As System.EventArgs) Handles Me.PreInit
str = ""
str += "PAGE PRE INIT" & "<br />"
End Sub
Protected Sub Page_PreLoad(sender As Object, e As System.EventArgs) Handles Me.PreLoad
str += "PAGE PRE LOAD " & "<br />"
End Sub
Protected Sub Page_PreRender(sender As Object, e As System.EventArgs) Handles Me.PreRender
str += "PAGE PRE RENDER " & "<br />"
End Sub
Protected Sub Page_PreRenderComplete(sender As Object, e As System.EventArgs) Handles Me.PreRenderComplete
str += "PAGE PRE RENDER COMPLETE " & "<br />"
End Sub
Protected Sub Page_SaveStateComplete(sender As Object, e As System.EventArgs) Handles Me.SaveStateComplete
str += "PAGE SAVE STATE COMPLTE " & "<br />"
lbl.Text = str
End Sub
Protected Sub Page_Unload(sender As Object, e As System.EventArgs) Handles Me.Unload
'Response.Write("PAGE UN LOAD\n")
End Sub
End Class
This error happened to me because I had @@model instead of @model... copy & paste error in my case. Changing to @model fixed it for me.
Since your server already includes the sites-enabled
folder ( notice the include /etc/nginx/sites-enabled/*
line ), then you better use that.
Create a file inside /etc/nginx/sites-available
and call it whatever you want, I'll call it django
since it's a djanog server
sudo touch /etc/nginx/sites-available/django
Then create a symlink that points to it
sudo ln -s /etc/nginx/sites-available/django /etc/nginx/sites-enabled
Then edit that file with whatever file editor you use, vim
or nano
or whatever and create the server inside it
server {
# hostname or ip or multiple separated by spaces
server_name localhost example.com 192.168.1.1; #change to your setting
location / {
root /home/techcee/scrapbook/local/lib/python2.7/site-packages/django/__init__.pyc/;
}
}
Restart or reload nginx settings
sudo service nginx reload
Note I believe that your configuration like this probably won't work yet because you need to pass it to a fastcgi server or something, but at least this is how you could create a valid server
In that case you don't want to insert size
and color
inside an array, but into an object
var options = {
'size': size,
'color': color
};
Afterwards you can access the sets of keys by
var keys = Object.keys( options );
This is what worked for me:
public static Map<String, Object> toMap(JSONObject jsonobj) throws JSONException {
Map<String, Object> map = new HashMap<String, Object>();
Iterator<String> keys = jsonobj.keys();
while(keys.hasNext()) {
String key = keys.next();
Object value = jsonobj.get(key);
if (value instanceof JSONArray) {
value = toList((JSONArray) value);
} else if (value instanceof JSONObject) {
value = toMap((JSONObject) value);
}
map.put(key, value);
} return map;
}
public static List<Object> toList(JSONArray array) throws JSONException {
List<Object> list = new ArrayList<Object>();
for(int i = 0; i < array.length(); i++) {
Object value = array.get(i);
if (value instanceof JSONArray) {
value = toList((JSONArray) value);
}
else if (value instanceof JSONObject) {
value = toMap((JSONObject) value);
}
list.add(value);
} return list;
}
Most of this is from this question: How to convert JSONObject to new Map for all its keys using iterator java
The best part of working with any open source technology is that you can inspect length and breadth of it. Checkout this link
find_by ~> Finds the first record matching the specified conditions. There is no implied ordering so if order matters, you should specify it yourself. If no record is found, returns nil.
find ~> Finds the first record matching the specified conditions , but if no record is found, it raises an exception but that is done deliberately.
Do checkout the above link, it has all the explanation and use cases for the following two functions.
Here you just have to pass year and week number.
DECLARE @Year VARCHAR(4)
SET @Year= '2012'
DECLARE @FirstDate DATETIME
SET @FirstDate = (SELECT DATEADD(dd,1,(SELECT DATEADD(wk,DATEPART(wk,GETDATE())-1,Convert(DAteTime,'01-01-' + @Year))))
)
DECLARE @LastDate DATETIME
SET @LastDate =(SELECT DATEADD(dd,4,@FirstDate))
SELECT @FirstDate
,@LastDate
After spending the day I realized it was a simple change in Project Settings
File -> Project Settings... -> Build System -> Legacy Build System.
In a project setting, you will see Build System named drop down and in that drop down select Legacy Build System
Add the following to your build.gradle
apply plugin: 'eclipse'
and browse to the project directory
gradle eclipse
Once done, you could import the project from eclipse as simple Java Project.
You can try it like so : python3 manage.py migrate
(make sur to be in the src/
directory)
You can also try with pip install -r requirements.txt
(make sur you see the requirements.txt
file when you type ls
after the migrate
If after all it still won't work try pip install django
Hope it helps
In your for loop you need to multiply the units * price. That gives you the total for that particular item. Also in the for loop you should add that to a counter that keeps track of the grand total. Your code would look something like
float total;
total += theItem.getUnits() * theItem.getPrice();
total should be scoped so it's accessible from within main unless you want to pass it around between function calls. Then you can either just print out the total or create a method that prints it out for you.
Try this
Get-ChildItem | % { Write-Host "$($_.FullName)\$buildConfig\$($_.Name).dll" }
In your code,
$build-Config
is not a valid variable name. $.FullName
should be $_.FullName
$
should be $_.Name
what i have experienced is that this exception raise when updating object have an id which not exist in table. if you read exception message it says "Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1" which means it was unable to found record with your given id.
To avoid this i always read record with same id if i found record back then i call update otherwise throw "exception record not found".
Top can be compiled from sources or downloaded from sunfreeware.com. As previously posted, vmstat is available (I believe it's in the core install?).
You can either change the thread identity, or P/Invoke WNetAddConnection2. I prefer the latter, as I sometimes need to maintain multiple credentials for different locations. I wrap it into an IDisposable and call WNetCancelConnection2 to remove the creds afterwards (avoiding the multiple usernames error):
using (new NetworkConnection(@"\\server\read", readCredentials))
using (new NetworkConnection(@"\\server2\write", writeCredentials)) {
File.Copy(@"\\server\read\file", @"\\server2\write\file");
}
It does work indeed. Issue was with my less compiler. It was compiled in to:
.container {
min-height: calc(-51vh);
}
Fixed with the following code in less file:
.container {
min-height: calc(~"100vh - 150px");
}
Thanks to this link: Less Aggressive Compilation with CSS3 calc
In short there's no way to recover the passphrase for a pair of SSH keys. Why? Because it was intended this way in the first place for security reasons. The answers the other people gave you are all correct ways to CHANGE the password of your keys, not to recover them. So if you've forgotten your passphrase, the best you can do is create a new pair of SSH keys. Here's how to generate SSH keys and add it to your GitHub account.
if you generate new angular project using "ng new", you may skip a generating of spec.ts files. For this you should apply --skip-tests option.
ng new ng-app-name --skip-tests
Which version of .NET are you using? If it's .NET 3.5, I'd just call ToArray()
and be done with it.
If you only have a non-generic IEnumerable, do something like this:
IEnumerable query = ...;
MyEntityType[] array = query.Cast<MyEntityType>().ToArray();
If you don't know the type within that method but the method's callers do know it, make the method generic and try this:
public static void T[] PerformQuery<T>()
{
IEnumerable query = ...;
T[] array = query.Cast<T>().ToArray();
return array;
}
As the error message states, the method used to get the F score is from the "Classification" part of sklearn - thus the talking about "labels".
Do you have a regression problem? Sklearn provides a "F score" method for regression under the "feature selection" group: http://scikit-learn.org/stable/modules/generated/sklearn.feature_selection.f_regression.html
In case you do have a classification problem, @Shovalt's answer seems correct to me.
In Android Studio
Add this dependency to your build.gradle (Module: app)
dependencies {
...
compile 'org.apache.commons:commons-lang3:3.1'
...
}
Now you can use
String string = "STRING WITH ALL CAPPS AND SPACES";
string = string.toLowerCase(); // Make all lowercase if you have caps
someTextView.setText(WordUtils.capitalize(string));
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.
Declare list item components as final outside your setOnClickListener or whatever you want to apply on your list item like this:
final View yourView;
final TextView yourTextView;
And in overriding onClick or whatever method you use, just set colors as needed like this:
yourView.setBackgroundColor(Color.WHITE/*or whatever RGB suites good contrast*/);
yourTextView.setTextColor(Color.BLACK/*or whatever RGB suites good contrast*/);
Or without the final declaration, if let's say you implement an onClick() for a custom adapter to populate a list, this is what I used in getView() for my setOnClickListener/onClick():
//reset color for all list items in case any item was previously selected
for(int i = 0; i < parent.getChildCount(); i++)
{
parent.getChildAt(i).setBackgroundColor(Color.BLACK);
TextView text=(TextView) parent.getChildAt(i).findViewById(R.id.item);
text.setTextColor(Color.rgb(0,178,178));
}
//highlight currently selected item
parent.getChildAt(position).setBackgroundColor(Color.rgb(0,178,178));
TextView text=(TextView) parent.getChildAt(position).findViewById(R.id.item);
text.setTextColor(Color.rgb(0,178,178));
The variable set by varStatus
is a LoopTagStatus
object, not an int. Use:
<div id="divIDNo${theCount.index}">
To clarify:
${theCount.index}
starts counting at 0
unless you've set the begin
attribute${theCount.count}
starts counting at 1
Select the view controller which you want to open first and go to attribute inspector. Go to initial scene and check is initial view controller option.
Now this will be your initial view controller that will open first when application launch.
There's also the rather low-tech solution of counting adding spaces by hand to make your messages line up. Nothing prevents you from including a few trailing spaces in your message strings.
AFAIK you cannot use VBA Excel to create custom tab in the Excel ribbon. You can however hide/make visible a ribbon component using VBA. Additionally, the link that you mentioned above is for MS Project and not MS Excel.
I create tabs for my Excel Applications/Add-Ins using this free utility called Custom UI Editor.
Edit: To accommodate new request by OP
Here is a short tutorial as promised:
After you have installed the Custom UI Editor (CUIE), open it and then click on File | Open and select the relevant Excel File. Please ensure that the Excel File is closed before you open it via CUIE. I am using a brand new worksheet as an example.
Right click as shown in the image below and click on "Office 2007 Custom UI Part". It will insert the "customUI.xml"
Next Click on menu Insert | Sample XML | Custom Tab. You will notice that the basic code is automatically generated. Now you are all set to edit it as per your requirements.
Let's inspect the code
label="Custom Tab"
: Replace "Custom Tab" with the name which you want to give your tab. For the time being let's call it "Jerome".
The below part adds a custom button.
<button id="customButton" label="Custom Button" imageMso="HappyFace" size="large" onAction="Callback" />
imageMso
: This is the image that will display on the button. "HappyFace" is what you will see at the moment. You can download more image ID's here.
onAction="Callback"
: "Callback" is the name of the procedure which runs when you click on the button.
With that, let's create 2 buttons and call them "JG Button 1" and "JG Button 2". Let's keep happy face as the image of the first one and let's keep the "Sun" for the second. The amended code now looks like this:
<customUI xmlns="http://schemas.microsoft.com/office/2006/01/customui">
<ribbon startFromScratch="false">
<tabs>
<tab id="MyCustomTab" label="Jerome" insertAfterMso="TabView">
<group id="customGroup1" label="First Tab">
<button id="customButton1" label="JG Button 1" imageMso="HappyFace" size="large" onAction="Callback1" />
<button id="customButton2" label="JG Button 2" imageMso="PictureBrightnessGallery" size="large" onAction="Callback2" />
</group>
</tab>
</tabs>
</ribbon>
</customUI>
Delete all the code which was generated in CUIE and then paste the above code in lieu of that. Save and close CUIE. Now when you open the Excel File it will look like this:
Now the code part. Open VBA Editor, insert a module, and paste this code:
Public Sub Callback1(control As IRibbonControl)
MsgBox "You pressed Happy Face"
End Sub
Public Sub Callback2(control As IRibbonControl)
MsgBox "You pressed the Sun"
End Sub
Save the Excel file as a macro enabled file. Now when you click on the Smiley or the Sun you will see the relevant message box:
Hope this helps!
.on()
is the recommended way to do all your event binding as of jQuery 1.7. It rolls all the functionality of both .bind()
and .live()
into one function that alters behavior as you pass it different parameters.
As you have written your example, there is no difference between the two. Both bind a handler to the click
event of #whatever
. on()
offers additional flexibility in allowing you to delegate events fired by children of #whatever
to a single handler function, if you choose.
// Bind to all links inside #whatever, even new ones created later.
$('#whatever').on('click', 'a', function() { ... });
Your datatype is wrong, change datatype for dataType.
Adding following in the page header works for me:
<?php
if($i_wanna_reload_the_full_page_on_top == "yes")
{
$reloadneeded = "1";
}
else
{
$reloadneeded = "0";
}
if($reloadneeded > 0)
{
?>
<script type="text/javascript">
top.window.location='indexframes.php';
</script>
<?php
}else{}
?>
Hello all I see a lot of good options but I was wondering why Binding hasn't been used?
Passing a reference to an object just seems more efficient to me than serializing and desterilizing objects, but I have not done a deep dive to see if that is what is going on behind the scenes.
Creating a Binder is simple enough...
public class MyBinder extends Binder {
private Object myObject;
public MyBinder(Object object) {
myObject = object;
}
public Object getObject() {
return myObject;
}
}
And creating the parcelable to use it isn't that bad ether.
public class MyParcelable implements Parcelable {
private Object myObject;
public MyParcelable() {
}
public MyParcelable(Parcel parcel) {
myObject = ((MyBinder)parcel.readStrongBinder()).getObject();
}
public void setObject(Object object) {
myObject = object;
}
public Object getObject() {
return myObject;
}
public void writeToParcel(Parcel parcel, int flags) {
parcel.writeStrongBinder(new MyBinder(myObject));
}
public int describeContents() {
return myObject == null ? 0 : 1;
}
public static final Parcelable.Creator<MyParcelable> CREATOR = new Parcelable.Creator<MyParcelable>() {
public MyParcelable createFromParcel(Parcel parcel) {
return new MyParcelable(parcel);
}
public MyParcelable[] newArray(int length) {
return new MyParcelable[length];
}
};
}
This logic is really cool because you are actually passing a reference from activity to activity.
I would advise checking for nulls and if the instanceof Binder is MyBinder!
and to implement this you just...
Send it off
Object myObject = "some object";
MyParcelable myParcelable = new MyParcelable();
myParcelable.setObject(myObject);
intent.putExtra("MyParcelable", myParcelable);
Get it back
myParcelable = (MyParcelable) getIntent().getExtras().getParcelable("MyParcelable");
myObject = myParcelable.getObject();
Heck someone could get all crazy and make this sucker a true generic.
I had a similar issue with zsh and nvm on Linux, I fixed it by adding nvm initialization script in ~/.profile
and restart login session like this
export NVM_DIR="$HOME/.nvm"
[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh" # This loads nvm
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
It's possible that your mysql
hasn't started or is not to the port 3306
Since (at least on my linux system) the version string looks like "1.8.0_45":
#!/bin/bash
function checkJavaVers {
for token in $(java -version 2>&1)
do
if [[ $token =~ \"([[:digit:]])\.([[:digit:]])\.(.*)\" ]]
then
export JAVA_MAJOR=${BASH_REMATCH[1]}
export JAVA_MINOR=${BASH_REMATCH[2]}
export JAVA_BUILD=${BASH_REMATCH[3]}
return 0
fi
done
return 1
}
#test
checkJavaVers || { echo "check failed" ; exit; }
echo "$JAVA_MAJOR $JAVA_MINOR $JAVA_BUILD"
~
You should target the smallest, not the largest, supported pixel resolution by the devices your app can run on.
Say if there's an actual Mac computer that can run OS X 10.9 and has a native screen resolution of only 1280x720 then that's the resolution you should focus on. Any higher and your game won't correctly run on this device and you could as well remove that device from your supported devices list.
You can rely on upscaling to match larger screen sizes, but you can't rely on downscaling to preserve possibly important image details such as text or smaller game objects.
The next most important step is to pick a fitting aspect ratio, be it 4:3 or 16:9 or 16:10, that ideally is the native aspect ratio on most of the supported devices. Make sure your game only scales to fit on devices with a different aspect ratio.
You could scale to fill but then you must ensure that on all devices the cropped areas will not negatively impact gameplay or the use of the app in general (ie text or buttons outside the visible screen area). This will be harder to test as you'd actually have to have one of those devices or create a custom build that crops the view accordingly.
Alternatively you can design multiple versions of your game for specific and very common screen resolutions to provide the best game experience from 13" through 27" displays. Optimized designs for iMac (desktop) and a Macbook (notebook) devices make the most sense, it'll be harder to justify making optimized versions for 13" and 15" plus 21" and 27" screens.
But of course this depends a lot on the game. For example a tile-based world game could simply provide a larger viewing area onto the world on larger screen resolutions rather than scaling the view up. Provided that this does not alter gameplay, like giving the player an unfair advantage (specifically in multiplayer).
You should provide @2x images for the Retina Macbook Pro and future Retina Macs.
Add "babel-preset-react"
npm install babel-preset-react
and add "presets" option to babel-loader in your webpack.config.js
(or you can add it to your .babelrc or package.js: http://babeljs.io/docs/usage/babelrc/)
Here is an example webpack.config.js:
{
test: /\.jsx?$/, // Match both .js and .jsx files
exclude: /node_modules/,
loader: "babel",
query:
{
presets:['react']
}
}
Recently Babel 6 was released and there was a major change: https://babeljs.io/blog/2015/10/29/6.0.0
If you are using react 0.14, you should use ReactDOM.render()
(from require('react-dom')
) instead of React.render()
: https://facebook.github.io/react/blog/#changelog
UPDATE 2018
Rule.query has already been deprecated in favour of Rule.options. Usage in webpack 4 is as follows:
npm install babel-loader babel-preset-react
Then in your webpack configuration (as an entry in the module.rules array in the module.exports object)
{
test: /\.jsx?$/,
exclude: /node_modules/,
use: [
{
loader: 'babel-loader',
options: {
presets: ['react']
}
}
],
}
what this means ? is there any problem in my code
It means that you are accessing a location or index which is not present in collection.
To find this, Make sure your Gridview has 5 columns as you are using it's 5th column by this line
dataGridView1.Columns[4].Name = "Amount";
Here is the image which shows the elements of an array. So if your gridview has less column then the (index + 1)
by which you are accessing it, then this exception arises.
Adding to other answers, the following helped me finish the installation mysql-python:
virtualenv, mysql-python, pip: anyone know how?
On Ubuntu...
apt-get install libmysqlclient-dev
apt-get install python-dev
pip install mysql-python
Don't forget to add 'sudo' to the beginning of commands if you don't have the proper permissions.
Try this Javascript (jquery) code. Its an ajax request to an external URL. Use the callback function to fire any code:
<script type="text/javascript">
$(function() {
$('form').submit(function(){
$.post('http://example.com/upload', function() {
window.location = 'http://google.com';
});
return false;
});
});
</script>
You don't have to call keys:
if 'key1' in dict:
print("blah")
else:
print("boo")
That will be much faster as it uses the dictionary's hashing as opposed to doing a linear search, which calling keys would do.
First to avoid NullPointerException you have to add this
Row.MissingCellPolicy.CREATE_NULL_AS_BLANK
This will create a blank cell instead of giving you NPE then you can check to make sure nothing went wrong just like what @Gagravarr have said.
Cell cell = row.getCell(j, Row.MissingCellPolicy.CREATE_NULL_AS_BLANK);
if (cell == null || cell.getCellTypeEnum() == CellType.BLANK)
// do what you want
no need to do so many things. for set value using multiple select2 var selectedvalue="1,2,3"; //if first 3 products are selected. $('#ddlProduct').val(selectedvalue);
from platform import python_version
print(python_version())
This will give you the exact version of python running your script. eg output:
3.6.5
Depends what you mean by a pattern. If you're thinking Person/Company/Transaction/Product and such, then yes - there are a lot of generic database schemas already available.
If you're thinking Factory, Singleton... then no - you don't need any of these as they're too low level for DB programming.
If you're thinking database object naming, then it's under the category of conventions, not design per se.
BTW, S.Lott, one-to-many and many-to-many relationships aren't "patterns". They're the basic building blocks of the relational model.
Implemented in JavaScript (ES6):
/**
* Calculate x and y in circle's circumference
* @param {Object} input - The input parameters
* @param {number} input.radius - The circle's radius
* @param {number} input.angle - The angle in degrees
* @param {number} input.cx - The circle's origin x
* @param {number} input.cy - The circle's origin y
* @returns {Array[number,number]} The calculated x and y
*/
function pointsOnCircle({ radius, angle, cx, cy }){
angle = angle * ( Math.PI / 180 ); // Convert from Degrees to Radians
const x = cx + radius * Math.sin(angle);
const y = cy + radius * Math.cos(angle);
return [ x, y ];
}
Usage:
const [ x, y ] = pointsOnCircle({ radius: 100, angle: 180, cx: 150, cy: 150 });
console.log( x, y );
/**
* Calculate x and y in circle's circumference
* @param {Object} input - The input parameters
* @param {number} input.radius - The circle's radius
* @param {number} input.angle - The angle in degrees
* @param {number} input.cx - The circle's origin x
* @param {number} input.cy - The circle's origin y
* @returns {Array[number,number]} The calculated x and y
*/
function pointsOnCircle({ radius, angle, cx, cy }){
angle = angle * ( Math.PI / 180 ); // Convert from Degrees to Radians
const x = cx + radius * Math.sin(angle);
const y = cy + radius * Math.cos(angle);
return [ x, y ];
}
const canvas = document.querySelector("canvas");
const ctx = canvas.getContext("2d");
function draw( x, y ){
ctx.clearRect( 0, 0, canvas.width, canvas.height );
ctx.beginPath();
ctx.strokeStyle = "orange";
ctx.arc( 100, 100, 80, 0, 2 * Math.PI);
ctx.lineWidth = 3;
ctx.stroke();
ctx.closePath();
ctx.beginPath();
ctx.fillStyle = "indigo";
ctx.arc( x, y, 6, 0, 2 * Math.PI);
ctx.fill();
ctx.closePath();
}
let angle = 0; // In degrees
setInterval(function(){
const [ x, y ] = pointsOnCircle({ radius: 80, angle: angle++, cx: 100, cy: 100 });
console.log( x, y );
draw( x, y );
document.querySelector("#degrees").innerHTML = angle + "°";
document.querySelector("#points").textContent = x.toFixed() + "," + y.toFixed();
}, 100 );
_x000D_
<p>Degrees: <span id="degrees">0</span></p>
<p>Points on Circle (x,y): <span id="points">0,0</span></p>
<canvas width="200" height="200" style="border: 1px solid"></canvas>
_x000D_
Now you can get time for the current location but for this you have to set the system's persistent default time zone.setTimeZone(String timeZone)
which can be get from
Calendar calendar = Calendar.getInstance();
long now = calendar.getTimeInMillis();
TimeZone current = calendar.getTimeZone();
setAutoTimeEnabled(boolean enabled)
Sets whether or not wall clock time should sync with automatic time updates from NTP.
TimeManager timeManager = TimeManager.getInstance();
// Use 24-hour time
timeManager.setTimeFormat(TimeManager.FORMAT_24);
// Set clock time to noon
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.MILLISECOND, 0);
calendar.set(Calendar.SECOND, 0);
calendar.set(Calendar.MINUTE, 0);
calendar.set(Calendar.HOUR_OF_DAY, 12);
long timeStamp = calendar.getTimeInMillis();
timeManager.setTime(timeStamp);
I was looking for that type of answer I read your answer but didn't satisfied and it was bit old. I found the new solution and share it. :)
For more information visit: https://developer.android.com/things/reference/com/google/android/things/device/TimeManager.html
Another approach would be using ng-keypress ,
<input type="text" ng-model="data" ng-keypress="($event.charCode==13)? myfunc() : return">
I had the same issue and was not satisfied with any of the answers so far since none of them guaranteed unique IDs.
I too wanted to print object IDs for debugging purposed. I knew there must be some way to do it, because in the Eclipse debugger, it specifies unique IDs for each object.
I came up with a solution based on the fact that the "==" operator for objects only returns true if the two objects are actually the same instance.
import java.util.HashMap;
import java.util.Map;
/**
* Utility for assigning a unique ID to objects and fetching objects given
* a specified ID
*/
public class ObjectIDBank {
/**Singleton instance*/
private static ObjectIDBank instance;
/**Counting value to ensure unique incrementing IDs*/
private long nextId = 1;
/** Map from ObjectEntry to the objects corresponding ID*/
private Map<ObjectEntry, Long> ids = new HashMap<ObjectEntry, Long>();
/** Map from assigned IDs to their corresponding objects */
private Map<Long, Object> objects = new HashMap<Long, Object>();
/**Private constructor to ensure it is only instantiated by the singleton pattern*/
private ObjectIDBank(){}
/**Fetches the singleton instance of ObjectIDBank */
public static ObjectIDBank instance() {
if(instance == null)
instance = new ObjectIDBank();
return instance;
}
/** Fetches a unique ID for the specified object. If this method is called multiple
* times with the same object, it is guaranteed to return the same value. It is also guaranteed
* to never return the same value for different object instances (until we run out of IDs that can
* be represented by a long of course)
* @param obj The object instance for which we want to fetch an ID
* @return Non zero unique ID or 0 if obj == null
*/
public long getId(Object obj) {
if(obj == null)
return 0;
ObjectEntry objEntry = new ObjectEntry(obj);
if(!ids.containsKey(objEntry)) {
ids.put(objEntry, nextId);
objects.put(nextId++, obj);
}
return ids.get(objEntry);
}
/**
* Fetches the object that has been assigned the specified ID, or null if no object is
* assigned the given id
* @param id Id of the object
* @return The corresponding object or null
*/
public Object getObject(long id) {
return objects.get(id);
}
/**
* Wrapper around an Object used as the key for the ids map. The wrapper is needed to
* ensure that the equals method only returns true if the two objects are the same instance
* and to ensure that the hash code is always the same for the same instance.
*/
private class ObjectEntry {
private Object obj;
/** Instantiates an ObjectEntry wrapper around the specified object*/
public ObjectEntry(Object obj) {
this.obj = obj;
}
/** Returns true if and only if the objects contained in this wrapper and the other
* wrapper are the exact same object (same instance, not just equivalent)*/
@Override
public boolean equals(Object other) {
return obj == ((ObjectEntry)other).obj;
}
/**
* Returns the contained object's identityHashCode. Note that identityHashCode values
* are not guaranteed to be unique from object to object, but the hash code is guaranteed to
* not change over time for a given instance of an Object.
*/
@Override
public int hashCode() {
return System.identityHashCode(obj);
}
}
}
I believe that this should ensure unique IDs throughout the lifetime of the program. Note, however, that you probably don't want to use this in a production application because it maintains references to all of the objects for which you generate IDs. This means that any objects for which you create an ID will never be garbage collected.
Since I'm using this for debug purposes, I'm not too concerned with the memory being freed.
You could modify this to allow clearing Objects or removing individual objects if freeing memory is a concern.
you need a way to say that "i am running" from the app,
1) open a WCF ping service 2) write to registry/file on startup and delete on shutdown 3) create a Mutex
... i prefer the WCF part because you may not clean up file/registry correctly and Mutex seems to have its own issues
Using Spark 2.0+, we can load multiple CSV files from different directories using
df = spark.read.csv(['directory_1','directory_2','directory_3'.....], header=True)
. For more information, refer the documentation
here
I don't think it's enough merely to get the response. I think you need to read it (get the entity and read it via EntityUtils.consume()).
e.g. (from the doc)
System.out.println("<< Response: " + response.getStatusLine());
System.out.println(EntityUtils.toString(response.getEntity()));
public class DeleteFile {
public static void main(String[] args) {
String path="D:\test";
File file = new File(path);
File[] files = file.listFiles();
for (File f:files)
{if (f.isFile() && f.exists)
{ f.delete();
system.out.println("successfully deleted");
}else{
system.out.println("cant delete a file due to open or error");
} } }}
Make sure your jquery is inserted BEFORE bootstrap js file:
<script src="jquery.min.js" type="text/javascript"></script>
<link href="bootstrap.min.css" rel="stylesheet" type="text/css"/>
<script src="bootstrap.min.js" type="text/javascript"></script>
After adding new item to persons
add:
myGrid.DataSource = null;
myGrid.DataSource = persons;
I found my solution: Run:pod update
instead of pod install
. The error was fixed!
To get the number of days difference by two dates:
(start.to_date...end.to_date).count - 1
or
(end.to_date - start.to_date).to_i
We have been using jqGrid on a project and have had some good luck with it. Lots of options for inline editing, etc. If that stuff isn't necessary, then we've just used a plain foreach loop like @Hrvoje.
CodeGear Delphi
Its really not the language I disliked, but the IDE: CodeGear RAD Studio for Delphi. This is easily the worst, most buggy, crash-happy IDE I've ever used. Me and the other Delphi programmers would routinely lose hours of development time everyday because the IDE would crash or freeze.
After we installed CodeRush, the application became virtually unsuable. It crashed in regular 5-15 minute intervals, even without user input. Even worse, mysterious errors were triggered by basic debugging, such as hitting a breakpoint (routinely, the debugger would hit a breakpoint and simply freeze in its tracks on a trivial line, like a variable assignment. Nothing you could do would make it proceed any further). If you left the program alone, it would sit stable for up to a half hours before throwing some kind of memory exception.
So, after we'd spent thousands of dollars on licenses CodeGear RAD Studio, no one wanted to use it. By the time I left the company, all of our Delphi projects were coded with VIM instead.
Just solved this problem. In my case it was domain controller is not accessible, because both dns servers was google dns.
I just add to checklist for this problem:
I got this problem during debug mode and the missing file was from a static library I was using. The problem was solved by using step over instead of step into during debugging
:active
denotes the interaction state (so for a button will be applied during press), :focus
may be a better choice here. However, the styling will be lost once another element gains focus.
The final potential alternative using CSS would be to use :target
, assuming the items being clicked are setting routes (e.g. anchors) within the page- however this can be interrupted if you are using routing (e.g. Angular), however this doesnt seem the case here.
.active:active {_x000D_
color: red;_x000D_
}_x000D_
.focus:focus {_x000D_
color: red;_x000D_
}_x000D_
:target {_x000D_
color: red;_x000D_
}
_x000D_
<button class='active'>Active</button>_x000D_
<button class='focus'>Focus</button>_x000D_
<a href='#target1' id='target1' class='target'>Target 1</a>_x000D_
<a href='#target2' id='target2' class='target'>Target 2</a>_x000D_
<a href='#target3' id='target3' class='target'>Target 3</a>
_x000D_
As such, there is no way in CSS to absolutely toggle a styled state- if none of the above work for you, you will either need to combine with a change in your HTML (e.g. based on a checkbox) or programatically apply/remove a class using e.g. jQuery
$('button').on('click', function(){_x000D_
$('button').removeClass('selected');_x000D_
$(this).addClass('selected');_x000D_
});
_x000D_
button.selected{_x000D_
color:red;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
_x000D_
<button>Item</button><button>Item</button><button>Item</button>_x000D_
_x000D_
Try it this way:
Dim filePath As String =
String.Format("C:\ErrorLog_{0}.txt", DateTime.Today.ToString("dd-MMM-yyyy"))
if File.Exists(filePath) then
Using writer As New StreamWriter(filePath, True)
writer.WriteLine("Error Message in Occured at-- " & DateTime.Now)
Else
writer.WriteLine("Start Error Log for today")
End Using
end if
That is because Set only guarantees uniqueness, but says nothing about the optimal access or usage patterns. Ie, a Set can be a List or a Map, each of which have very different retrieval characteristics.
I will rename variables to reduce confusion. n -> nf or nmain. x -> xf or xmain:
def f(nf, xf):
nf = 2
xf.append(4)
print 'In f():', nf, xf
def main():
nmain = 1
xmain = [0,1,2,3]
print 'Before:', nmain, xmain
f(nmain, xmain)
print 'After: ', nmain, xmain
main()
When you call the function f, the Python runtime makes a copy of xmain and assigns it to xf, and similarly assigns a copy of nmain to nf.
In the case of n, the value that is copied is 1.
In the case of x the value that is copied is not the literal list [0, 1, 2, 3]. It is a reference to that list. xf and xmain are pointing at the same list, so when you modify xf you are also modifying xmain.
If, however, you were to write something like:
xf = ["foo", "bar"]
xf.append(4)
you would find that xmain has not changed. This is because, in the line xf = ["foo", "bar"] you have change xf to point to a new list. Any changes you make to this new list will have no effects on the list that xmain still points to.
Hope that helps. :-)
My favorite method uses cv2.copyMakeBorder with no border, like so.
copy = cv2.copyMakeBorder(original,0,0,0,0,cv2.BORDER_REPLICATE)
I put together a little test here:
\documentclass[10pt,twocolumn]{article}
\title{Article Title}
\author{
First Author\\
Department\\
school\\
email@edu
\and
Second Author\\
Department\\
school\\
email@edu
\and
Third Author\\
Department\\
school\\
email@edu
\and
Fourth Author\\
Department\\
school\\
email@edu
}
\date{\today}
\begin{document}
\maketitle
\begin{abstract}
\ldots
\end{abstract}
\section{Introduction}
\ldots
\end{document}
Things to note, the title, author and date fields are declared before \begin{document}
. Also, the multicol package is likely unnecessary in this case since you have declared twocolumn
in the document class.
This example puts all four authors on the same line, but if your authors have longer names, departments or emails, this might cause it to flow over onto another line. You might be able to change the font sizes around a little bit to make things fit. This could be done by doing something like {\small First Author}
. Here's a more detailed article on \LaTeX
font sizes:
https://engineering.purdue.edu/ECN/Support/KB/Docs/LaTeXChangingTheFont
To italicize you can use {\it First Name}
or \textit{First Name}
.
Be careful though, if the document is meant for publication often times journals or conference proceedings have their own formatting guidelines so font size trickery might not be allowed.
Debug.Print
outputs to the "Immediate" window.
Also, you can simply type ?
and then a statement directly into the immediate window (and then press Enter) and have the output appear right below, like this:
This can be very handy to quickly output the property of an object...
? myWidget.name
...to set the property of an object...
myWidget.name = "thingy"
...or to even execute a function or line of code, while in debugging mode:
Sheet1.MyFunction()
Make sure branch "master" exists! It's not just a name apparently.
I got this error after creating a blank bare repo, pushing a branch named "dev" to it, and trying to use git log in the bare repo. Interestingly, git branch knows that dev is the only branch existing (so I think this is a git bug).
Solution: I repeated the procedure, this time having renamed "dev" to "master" on the working repo before pushing to the bare repo. Success!
button2.Enabled == true ;
thats the problem - it should be:
button2.Enabled = true ;
In my instance of the problem, the solution was to replace german umlauts (äöü) with their HTML-equivalents...
www.example.com:443:0 server certificate does NOT include an ID which matches the server name
I was getting this error when trying to start Apache, there is no error with Apache. It's an dependency error on windows 8 - probably the same for 7. Just right click and run as Admin :)
If you're still getting an error check your Antivirus/Firewall is not blocking Xampp or port 443.
Assuming you use Java 5 enums (which is not so certain since you mention old Enumeration
class), you can use the valueOf
method of java.lang.Enum
subclass:
MyEnum e = MyEnum.valueOf("ONE_OF_CONSTANTS");
function waitFor(condition, callback) {
if(!condition()) {
console.log('waiting');
window.setTimeout(waitFor.bind(null, condition, callback), 100); /* this checks the flag every 100 milliseconds*/
} else {
console.log('done');
callback();
}
}
Use:
waitFor(() => window.waitForMe, () => console.log('got you'))
You can use the new Bootstrap cards:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">_x000D_
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js" integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n" crossorigin="anonymous"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js" integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb" crossorigin="anonymous"></script>_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>_x000D_
_x000D_
<div class="card-group">_x000D_
<div class="card">_x000D_
<img class="card-img-top" src="..." alt="Card image cap">_x000D_
<div class="card-block">_x000D_
<h4 class="card-title">Card title</h4>_x000D_
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This content is a little bit longer.</p>_x000D_
</div>_x000D_
<div class="card-footer">_x000D_
<small class="text-muted">Last updated 3 mins ago</small>_x000D_
</div>_x000D_
</div>_x000D_
<div class="card">_x000D_
<img class="card-img-top" src="..." alt="Card image cap">_x000D_
<div class="card-block">_x000D_
<h4 class="card-title">Card title</h4>_x000D_
<p class="card-text">This card has supporting text below as a natural lead-in to additional content.</p>_x000D_
</div>_x000D_
<div class="card-footer">_x000D_
<small class="text-muted">Last updated 3 mins ago</small>_x000D_
</div>_x000D_
</div>_x000D_
<div class="card">_x000D_
<img class="card-img-top" src="..." alt="Card image cap">_x000D_
<div class="card-block">_x000D_
<h4 class="card-title">Card title</h4>_x000D_
<p class="card-text">This is a wider card with supporting text below as a natural lead-in to additional content. This card has even longer content than the first to show that equal height action.</p>_x000D_
</div>_x000D_
<div class="card-footer">_x000D_
<small class="text-muted">Last updated 3 mins ago</small>_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
Link: Click here
regards,
import React, {Component} from 'react';
export default class ChatOutPut extends Component {
constructor(props) {
super(props);
this.state = {
messages: props.chatmessages
};
}
componentDidUpdate = (previousProps, previousState) => {
if (this.refs.chatoutput != null) {
this.refs.chatoutput.scrollTop = this.refs.chatoutput.scrollHeight;
}
}
renderMessage(data) {
return (
<div key={data.key}>
{data.message}
</div>
);
}
render() {
return (
<div ref='chatoutput' className={classes.chatoutputcontainer}>
{this.state.messages.map(this.renderMessage, this)}
</div>
);
}
}
It took me forever to figure this out.
C:\wamp\bin\apache\apache2.4.9\conf\extra\httpd-vhosts.conf
In this file you will notice several example virtual host files, that look like:
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "c:/Apache24/docs/dummy-host.example.com"
ServerName dummy-host.example.com
ServerAlias www.dummy-host.example.com
ErrorLog "logs/dummy-host.example.com-error.log"
CustomLog "logs/dummy-host.example.com-access.log" common
</VirtualHost>
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "c:/Apache24/docs/dummy-host2.example.com"
ServerName dummy-host2.example.com
ErrorLog "logs/dummy-host2.example.com-error.log"
CustomLog "logs/dummy-host2.example.com-access.log" common
</VirtualHost>
Simply delete these entries and replace with:
<VirtualHost *:80>
ServerAdmin [email protected]
DocumentRoot "C:\wamp\www"
ServerName localhost
</VirtualHost>
You definitely need to make sure your other ducks are in a row but this for me with the solution that worked.
There is problem with "use references wherever possible" rule and it arises if you want to keep reference for further use. To illustrate this with example, imagine you have following classes.
class SimCard
{
public:
explicit SimCard(int id):
m_id(id)
{
}
int getId() const
{
return m_id;
}
private:
int m_id;
};
class RefPhone
{
public:
explicit RefPhone(const SimCard & card):
m_card(card)
{
}
int getSimId()
{
return m_card.getId();
}
private:
const SimCard & m_card;
};
At first it may seem to be a good idea to have parameter in RefPhone(const SimCard & card)
constructor passed by a reference, because it prevents passing wrong/null pointers to the constructor. It somehow encourages allocation of variables on stack and taking benefits from RAII.
PtrPhone nullPhone(0); //this will not happen that easily
SimCard * cardPtr = new SimCard(666); //evil pointer
delete cardPtr; //muahaha
PtrPhone uninitPhone(cardPtr); //this will not happen that easily
But then temporaries come to destroy your happy world.
RefPhone tempPhone(SimCard(666)); //evil temporary
//function referring to destroyed object
tempPhone.getSimId(); //this can happen
So if you blindly stick to references you trade off possibility of passing invalid pointers for the possibility of storing references to destroyed objects, which has basically same effect.
edit: Note that I sticked to the rule "Use reference wherever you can, pointers wherever you must. Avoid pointers until you can't." from the most upvoted and accepted answer (other answers also suggest so). Though it should be obvious, example is not to show that references as such are bad. They can be misused however, just like pointers and they can bring their own threats to the code.
There are following differences between pointers and references.
Taking those into account my current rules are as follows.
The list()
function [docs] will convert a string into a list of single-character strings.
>>> list('hello')
['h', 'e', 'l', 'l', 'o']
Even without converting them to lists, strings already behave like lists in several ways. For example, you can access individual characters (as single-character strings) using brackets:
>>> s = "hello"
>>> s[1]
'e'
>>> s[4]
'o'
You can also loop over the characters in the string as you can loop over the elements of a list:
>>> for c in 'hello':
... print c + c,
...
hh ee ll ll oo
you can disable all selection
.disable-all{-webkit-touch-callout: none; -webkit-user-select: none;-khtml-user-select: none;-moz-user-select: none;-ms-user-select: none;user-select: none;}
now you can enable input and text-area enable
input, textarea{
-webkit-touch-callout:default;
-webkit-user-select:text;
-khtml-user-select: text;
-moz-user-select:text;
-ms-user-select:text;
user-select:text;}
Add the current directory ( . ) to PATH to be able to execute a script, just by typing in its name, that resides in the current directory:
PATH=.:$PATH
If you can convert .xls to .csv before processing, you can use the query below to import the csv to the database:
load data local infile 'FILE.CSV' into table TABLENAME fields terminated by ',' enclosed by '"' lines terminated by '\n' (FIELD1,FIELD2,FIELD3)
If there is already a nbproject folder it means you can open it straight ahead without importing it as a project with existing sources (ctrl+shift+o) or (cmd+shift+o)
Jasypt provides the org.jasypt.properties.EncryptableProperties class for loading, managing and transparently decrypting encrypted values in .properties files, allowing the mix of both encrypted and not-encrypted values in the same file.
http://www.jasypt.org/encrypting-configuration.html
By using an org.jasypt.properties.EncryptableProperties object, an application would be able to correctly read and use a .properties file like this:
datasource.driver=com.mysql.jdbc.Driver
datasource.url=jdbc:mysql://localhost/reportsdb
datasource.username=reportsUser
datasource.password=ENC(G6N718UuyPE5bHyWKyuLQSm02auQPUtm)
Note that the database password is encrypted (in fact, any other property could also be encrypted, be it related with database configuration or not).
How do we read this value? like this:
/*
* First, create (or ask some other component for) the adequate encryptor for
* decrypting the values in our .properties file.
*/
StandardPBEStringEncryptor encryptor = new StandardPBEStringEncryptor();
encryptor.setPassword("jasypt"); // could be got from web, env variable...
/*
* Create our EncryptableProperties object and load it the usual way.
*/
Properties props = new EncryptableProperties(encryptor);
props.load(new FileInputStream("/path/to/my/configuration.properties"));
/*
* To get a non-encrypted value, we just get it with getProperty...
*/
String datasourceUsername = props.getProperty("datasource.username");
/*
* ...and to get an encrypted value, we do exactly the same. Decryption will
* be transparently performed behind the scenes.
*/
String datasourcePassword = props.getProperty("datasource.password");
// From now on, datasourcePassword equals "reports_passwd"...
Ctrl+A , Ctrl+Shift+U
should do the trick!
Edit: Ctrl+U is the shortcut to be used to convert capital letters to lowercase (reverse scenario)
I personally didn't find any of these answers helpful. What worked in my case was giving the element float:none
and position:relative
. After that the element centered itself in the <td>
.
To expand on Byron's answer, I believe you need to edit the file java.security
in the %JRE_HOME%\lib\security
directory to effect this change.
Here is the relevant section:
#
# The Java-level namelookup cache policy for successful lookups:
#
# any negative value: caching forever
# any positive value: the number of seconds to cache an address for
# zero: do not cache
#
# default value is forever (FOREVER). For security reasons, this
# caching is made forever when a security manager is set. When a security
# manager is not set, the default behavior is to cache for 30 seconds.
#
# NOTE: setting this to anything other than the default value can have
# serious security implications. Do not set it unless
# you are sure you are not exposed to DNS spoofing attack.
#
#networkaddress.cache.ttl=-1
Documentation on the java.security
file here.
You cannot add JavaScript variable to HTML code.
For this you need to do in following way.
<html>
<head>
<script type="text/javscript">
var number = 123;
document.addEventListener('DOMContentLoaded', function() {
document.getElementByTagName("h1").innerHTML("the value for number is: " + number);
});
</script>
</head>
<body>
<h1></h1>
</body>
</html>
Just in case someone else needs an F# version of the above described hack.
open System
open System.IO
open System.Net
type WebClientEx() =
inherit WebClient ()
[<DefaultValue>] val mutable m_Resp : WebResponse
override x.GetWebResponse (req: WebRequest ) =
x.m_Resp <- base.GetWebResponse(req)
(req :?> HttpWebRequest).AllowAutoRedirect <- false;
x.m_Resp
override x.GetWebResponse (req: WebRequest , ar: IAsyncResult ) =
x.m_Resp <- base.GetWebResponse(req, ar)
(req :?> HttpWebRequest).AllowAutoRedirect <- false;
x.m_Resp
member x.StatusCode with get() : HttpStatusCode =
if not (obj.ReferenceEquals (x.m_Resp, null)) && x.m_Resp.GetType() = typeof<HttpWebResponse> then
(x.m_Resp :?> HttpWebResponse).StatusCode
else
HttpStatusCode.OK
let wc = new WebClientEx()
let st = wc.OpenRead("http://www.stackoverflow.com")
let sr = new StreamReader(st)
let res = sr.ReadToEnd()
wc.StatusCode
sr.Close()
st.Close()
PHP's DateTime
object is pretty flexible.
Since the user asked for more than one timezone option, then you can make it generic.
Generic Function
function convertDateFromTimezone($date,$timezone,$timezone_to,$format){
$date = new DateTime($date,new DateTimeZone($timezone));
$date->setTimezone( new DateTimeZone($timezone_to) );
return $date->format($format);
}
Usage:
echo convertDateFromTimezone('2011-04-21 13:14','UTC','America/New_York','Y-m-d H:i:s');
Output:
2011-04-21 09:14:00
Works if the Desktop scaling is set.
public class ScreenCapture
{
[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll", CharSet = CharSet.Auto, ExactSpelling = true)]
public static extern IntPtr GetDesktopWindow();
[StructLayout(LayoutKind.Sequential)]
private struct Rect
{
public int Left;
public int Top;
public int Right;
public int Bottom;
}
[DllImport("user32.dll")]
private static extern IntPtr GetWindowRect(IntPtr hWnd, ref Rect rect);
public static Image CaptureDesktop()
{
return CaptureWindow(GetDesktopWindow());
}
public static Bitmap CaptureActiveWindow()
{
return CaptureWindow(GetForegroundWindow());
}
public static Bitmap CaptureWindow(IntPtr handle)
{
var rect = new Rect();
GetWindowRect(handle, ref rect);
GetScale getScale = new GetScale();
var bounds = new Rectangle(rect.Left, rect.Top, (int)((rect.Right - rect.Left)* getScale.getScalingFactor()), (int)((rect.Bottom - rect.Top )* getScale.getScalingFactor()));
var result = new Bitmap(bounds.Width, bounds.Height);
using (var graphics = Graphics.FromImage(result))
{
graphics.CopyFromScreen(new Point(bounds.Left, bounds.Top), Point.Empty, bounds.Size);
}
return result;
}
}
The answer from @Mark Byers is best, but if you are on a version of Python < 2.7 (but at least 2.5, which is pretty old these days), you can replicate the Counter class functionality very simply via defaultdict (otherwise, for python < 2.5, three extra lines of code are needed before d[i] +=1, as in @Johnnysweb's answer).
from collections import defaultdict
class Counter():
ITEMS = []
def __init__(self, items):
d = defaultdict(int)
for i in items:
d[i] += 1
self.ITEMS = sorted(d.iteritems(), reverse=True, key=lambda i: i[1])
def most_common(self, n):
return self.ITEMS[:n]
Then, you use the class exactly as in Mark Byers's answer, i.e.:
words_to_count = (word for word in word_list if word[:1].isupper())
c = Counter(words_to_count)
print c.most_common(3)
read() is equivalent to recv() with a flags parameter of 0. Other values for the flags parameter change the behaviour of recv(). Similarly, write() is equivalent to send() with flags == 0.
If your Objects
are containing of Strings
only, then you can do it like this:
Map<String,Object> map = new HashMap<String,Object>(); //Object is containing String
Map<String,String> newMap =new HashMap<String,String>();
for (Map.Entry<String, Object> entry : map.entrySet()) {
if(entry.getValue() instanceof String){
newMap.put(entry.getKey(), (String) entry.getValue());
}
}
If every Objects
are not String
then you can replace (String) entry.getValue()
into entry.getValue().toString()
.
As the new feature comes, SameSite=None
cookies must also be marked as Secure
or they will be rejected.
One can find more information about the change on chromium updates and on this blog post
Note: not quite related directly to the question, but might be useful for others who landed here as it was my concern at first during development of my website:
if you are seeing the warning from question that lists some 3rd party sites (in my case it was google.com, huh) - that means they need to fix it and it's nothing to do with your site. Of course unless the warning mentions your site, in which case adding Secure
should fix it.
You need select privileges on All_users view
The caret character works, however the next line should not start with double quotes. e.g. this will not work:
C:\ ^
"SampleText" ..
Start next line without double quotes (not a valid example, just to illustrate)
zxing does not (only) provide a web API; really, that is Google providing the API, from source code that was later open-sourced in the project.
As Rob says here you can use the Java source code for the QR code encoder to create a raw barcode and then render it as a Bitmap.
I can offer an easier way still. You can call Barcode Scanner by Intent to encode a barcode. You need just a few lines of code, and two classes from the project, under android-integration
. The main one is IntentIntegrator. Just call shareText()
.
This code will dynamically generate the expression for you with the nested clauses. I have a scenario where the number of "OR" s was unknown, so I'm using the below. Usage:
private static void Main(string[] args)
{
var query = new PropertyString(@"<Query><Where>{{WhereClauses}}</Where></Query>");
var whereClause =
new PropertyString(@"<Eq><FieldRef Name='ID'/><Value Type='Counter'>{{NestClauseValue}}</Value></Eq>");
var andClause = new PropertyString("<Or>{{FirstExpression}}{{SecondExpression}}</Or>");
string[] values = {"1", "2", "3", "4", "5", "6"};
query["WhereClauses"] = NestEq(whereClause, andClause, values);
Console.WriteLine(query);
}
And here's the code:
private static string MakeExpression(PropertyString nestClause, string value)
{
var expr = nestClause.New();
expr["NestClauseValue"] = value;
return expr.ToString();
}
/// <summary>
/// Recursively nests the clause with the nesting expression, until nestClauseValue is empty.
/// </summary>
/// <param name="whereClause"> A property string in the following format: <Eq><FieldRef Name='Title'/><Value Type='Text'>{{NestClauseValue}}</Value></Eq>"; </param>
/// <param name="nestingExpression"> A property string in the following format: <And>{{FirstExpression}}{{SecondExpression}}</And> </param>
/// <param name="nestClauseValues">A string value which NestClauseValue will be filled in with.</param>
public static string NestEq(PropertyString whereClause, PropertyString nestingExpression, string[] nestClauseValues, int pos=0)
{
if (pos > nestClauseValues.Length)
{
return "";
}
if (nestClauseValues.Length == 1)
{
return MakeExpression(whereClause, nestClauseValues[0]);
}
var expr = nestingExpression.New();
if (pos == nestClauseValues.Length - 2)
{
expr["FirstExpression"] = MakeExpression(whereClause, nestClauseValues[pos]);
expr["SecondExpression"] = MakeExpression(whereClause, nestClauseValues[pos + 1]);
return expr.ToString();
}
else
{
expr["FirstExpression"] = MakeExpression(whereClause, nestClauseValues[pos]);
expr["SecondExpression"] = NestEq(whereClause, nestingExpression, nestClauseValues, pos + 1);
return expr.ToString();
}
}
public class PropertyString
{
private string _propStr;
public PropertyString New()
{
return new PropertyString(_propStr );
}
public PropertyString(string propStr)
{
_propStr = propStr;
_properties = new Dictionary<string, string>();
}
private Dictionary<string, string> _properties;
public string this[string key]
{
get
{
return _properties.ContainsKey(key) ? _properties[key] : string.Empty;
}
set
{
if (_properties.ContainsKey(key))
{
_properties[key] = value;
}
else
{
_properties.Add(key, value);
}
}
}
/// <summary>
/// Replaces properties in the format {{propertyName}} in the source string with values from KeyValuePairPropertiesDictionarysupplied dictionary.nce you've set a property it's replaced in the string and you
/// </summary>
/// <param name="originalStr"></param>
/// <param name="keyValuePairPropertiesDictionary"></param>
/// <returns></returns>
public override string ToString()
{
string modifiedStr = _propStr;
foreach (var keyvaluePair in _properties)
{
modifiedStr = modifiedStr.Replace("{{" + keyvaluePair.Key + "}}", keyvaluePair.Value);
}
return modifiedStr;
}
}
The declaration of x
is inside foo
but the x=5
initialization takes place outside of foo
!
What we need to understand here is that
static int x = 5;
is not the same as
static int x;
x = 5;
Other answers have used the important words here, scope and lifetime, and pointed out that the scope of x
is from the point of its declaration in the function foo
to the end of the function foo
. For example I checked by moving the declaration to the end of the function, and that makes x
undeclared at the x++;
statement.
So the static int x
(scope) part of the statement actually applies where you read it, somewhere INSIDE the function and only from there onwards, not above it inside the function.
However the x = 5
(lifetime) part of the statement is initialization of the variable and happening OUTSIDE of the function as part of the program loading. Variable x
is born with a value of 5
when the program loads.
I read this in one of the comments: "Also, this doesn't address the really confusing part, which is the fact that the initializer is skipped on subsequent calls." It is skipped on all calls. Initialization of the variable is outside of the function code proper.
The value of 5 is theoretically set regardless of whether or not foo is called at all, although a compiler might optimize the function away if you don't call it anywhere. The value of 5 should be in the variable before foo is ever called.
Inside of foo
, the statement static int x = 5;
is unlikely to be generating any code at all.
I found the address x
uses when I put a function foo
into a program of mine, and then (correctly) guessed that the same location would be used if I ran the program again. The partial screen capture below shows that x
has the value 5
even before the first call to foo
.
If you aren't using an auto-filter (i.e. you have manually hidden rows), you will need to use the AGGREGATE
function instead of SUBTOTAL
.
For the records, the safest way I've found is to implement the Safari part of the browser-detection code from this answer:
const isSafari = window['safari'] && safari.pushNotification &&
safari.pushNotification.toString() === '[object SafariRemoteNotification]';
Of course, the best way of dealing with browser-specific issues is always to do feature-detection, if at all possible. Using a piece of code like the above one is, though, still better than agent string detection.
bundle update gem-name [--major|--patch|--minor]
This also works for dependencies.
It depends on which rown you want to return for each unique item. Your data seems to indicate the minimum data value so in this instance for SQL Server.
SELECT item, min(data)
FROM table
GROUP BY item
A database is the computerized logical representation of a conceptual (or business) model, consisting of a set of informal business rules. These rules are the user-understood meaning of the data. Because computers comprehend only formal representations, business rules cannot be represented directly in a database. They must be mapped to a formal representation, a logical model, which consists of a set of integrity constraints. These constraints — the database schema — are the logical representation in the database of the business rules and, therefore, are the DBMS-understood meaning of the data. It follows that if the DBMS is unaware of and/or does not enforce the full set of constraints representing the business rules, it has an incomplete understanding of what the data means and, therefore, cannot guarantee (a) its integrity by preventing corruption, (b) the integrity of inferences it makes from it (that is, query results) — this is another way of saying that the DBMS is, at best, incomplete.
Note: The DBMS-“understood” meaning — integrity constraints — is not identical to the user-understood meaning — business rules — but, the loss of some meaning notwithstanding, we gain the ability to mechanize logical inferences from the data.
"An Old Class of Errors" by Fabian Pascal
If you only want the orientation tag and nothing else and don't like to include another huge javascript library I wrote a little code that extracts the orientation tag as fast as possible (It uses DataView and readAsArrayBuffer
which are available in IE10+, but you can write your own data reader for older browsers):
function getOrientation(file, callback) {_x000D_
var reader = new FileReader();_x000D_
reader.onload = function(e) {_x000D_
_x000D_
var view = new DataView(e.target.result);_x000D_
if (view.getUint16(0, false) != 0xFFD8)_x000D_
{_x000D_
return callback(-2);_x000D_
}_x000D_
var length = view.byteLength, offset = 2;_x000D_
while (offset < length) _x000D_
{_x000D_
if (view.getUint16(offset+2, false) <= 8) return callback(-1);_x000D_
var marker = view.getUint16(offset, false);_x000D_
offset += 2;_x000D_
if (marker == 0xFFE1) _x000D_
{_x000D_
if (view.getUint32(offset += 2, false) != 0x45786966) _x000D_
{_x000D_
return callback(-1);_x000D_
}_x000D_
_x000D_
var little = view.getUint16(offset += 6, false) == 0x4949;_x000D_
offset += view.getUint32(offset + 4, little);_x000D_
var tags = view.getUint16(offset, little);_x000D_
offset += 2;_x000D_
for (var i = 0; i < tags; i++)_x000D_
{_x000D_
if (view.getUint16(offset + (i * 12), little) == 0x0112)_x000D_
{_x000D_
return callback(view.getUint16(offset + (i * 12) + 8, little));_x000D_
}_x000D_
}_x000D_
}_x000D_
else if ((marker & 0xFF00) != 0xFF00)_x000D_
{_x000D_
break;_x000D_
}_x000D_
else_x000D_
{ _x000D_
offset += view.getUint16(offset, false);_x000D_
}_x000D_
}_x000D_
return callback(-1);_x000D_
};_x000D_
reader.readAsArrayBuffer(file);_x000D_
}_x000D_
_x000D_
// usage:_x000D_
var input = document.getElementById('input');_x000D_
input.onchange = function(e) {_x000D_
getOrientation(input.files[0], function(orientation) {_x000D_
alert('orientation: ' + orientation);_x000D_
});_x000D_
}
_x000D_
<input id='input' type='file' />
_x000D_
values:
-2: not jpeg
-1: not defined
For those using Typescript, you can use the following code:
export const getOrientation = (file: File, callback: Function) => {
var reader = new FileReader();
reader.onload = (event: ProgressEvent) => {
if (! event.target) {
return;
}
const file = event.target as FileReader;
const view = new DataView(file.result as ArrayBuffer);
if (view.getUint16(0, false) != 0xFFD8) {
return callback(-2);
}
const length = view.byteLength
let offset = 2;
while (offset < length)
{
if (view.getUint16(offset+2, false) <= 8) return callback(-1);
let marker = view.getUint16(offset, false);
offset += 2;
if (marker == 0xFFE1) {
if (view.getUint32(offset += 2, false) != 0x45786966) {
return callback(-1);
}
let little = view.getUint16(offset += 6, false) == 0x4949;
offset += view.getUint32(offset + 4, little);
let tags = view.getUint16(offset, little);
offset += 2;
for (let i = 0; i < tags; i++) {
if (view.getUint16(offset + (i * 12), little) == 0x0112) {
return callback(view.getUint16(offset + (i * 12) + 8, little));
}
}
} else if ((marker & 0xFF00) != 0xFF00) {
break;
}
else {
offset += view.getUint16(offset, false);
}
}
return callback(-1);
};
reader.readAsArrayBuffer(file);
}
One of the values you pass on to Ancestors
becomes None
at some point, it says, so check if otu
, tree
, tree[otu]
or tree[otu][0]
are None
in the beginning of the function instead of only checking tree[otu][0][0] == None
. But perhaps you should reconsider your path of action and the datatype in question to see if you could improve the structure somewhat.
for me the "workaround" solution was to remove the "_normal" from the end of the string
Check it out below:
Closing and re-opening VS2015 resolves the issue.
It seems that in some cases, simply reloading the affected project will work.
If you use Bootstrap 3 and everything works fine on other browsers except IE, try the below.
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
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You can use
git reset
to undo the recently added local files
git reset file_name
to undo the changes for a specific file
Using slf4j and a wrapper is nice but the use of it's built in interpolation breaks down when you have more than two values to interpolate, since then you need to create an Array of values to interpolate.
A more Scala like solution is to use a thunk or cluster to delay the concatenation of the error message. A good example of this is Lift's logger
Which looks like this:
class Log4JLogger(val logger: Logger) extends LiftLogger {
override def trace(msg: => AnyRef) = if (isTraceEnabled) logger.trace(msg)
}
Note that msg is a call-by-name and won't be evaluated unless isTraceEnabled is true so there's no cost in generating a nice message string. This works around the slf4j's interpolation mechanism which requires parsing the error message. With this model, you can interpolate any number of values into the error message.
If you have a separate trait that mixes this Log4JLogger into your class, then you can do
trace("The foobar from " + a + " doesn't match the foobar from " +
b + " and you should reset the baz from " + c")
instead of
info("The foobar from {0} doesn't match the foobar from {1} and you should reset the baz from {c},
Array(a, b, c))
This was trivial.
Each module has a __file__
variable that shows its relative path from where you are right now.
Therefore, getting a directory for the module to notify it is simple as:
os.path.dirname(__file__)
I ran into a similar problem where Visual Studio (2017) said it could not find my project's PDB file. I could see the PDB file did exist in the correct path. I had to Clean and Rebuild the project, then Visual Studio recognized the PDB file and debugging worked.
If you can be sure to have precise alignment of your template (the icon) to the testing region, then any old sum of pixel differences will work.
If the alignment is only going to be a tiny bit off, then you can low-pass both images with cv::GaussianBlur before finding the sum of pixel differences.
If the quality of the alignment is potentially poor then I would recommend either a Histogram of Oriented Gradients or one of OpenCV's convenient keypoint detection/descriptor algorithms (such as SIFT or SURF).
u = urllib2.urlopen('http://myserver/inout-tracker', data)
h.request('POST', '/inout-tracker/index.php', data, headers)
Using the path /inout-tracker
without a trailing /
doesn't fetch index.php
. Instead the server will issue a 302
redirect to the version with the trailing /
.
Doing a 302 will typically cause clients to convert a POST to a GET request.
I managed to do this with the following code:
ALTER TABLE `table_name`
CHANGE COLUMN `colum_name` `colum_name` INT(11) NOT NULL AUTO_INCREMENT FIRST;
This is the only way I could make a column auto increment.
INT(11) shows that the maximum int length is 11, you can skip it if you want.
I just had the same issue with Netbeans 8.2 and trying to connect to mySQL server on a Mac OS machine. The only thing that worked for me was to add the following to the url of the connection string: &serverTimezone=UTC (or if you are connecting via Hibernate.cfg.xml then escape the & as &) Not surprisingly I found the solution on this stack overflow post also:
MySQL JDBC Driver 5.1.33 - Time Zone Issue
Best Regards, Claudio
perhaps I am late
you can use git remote remove origin
it will do the job.
None of the above solutions worked for me. below did
change authorised Redirect urls to - https://localhost:44377/signin-google
Hope this helps someone.
Mainly, you've got 2 major problems:
You are using adding a List
of String
s. You want a List
containing List
s of Strings
.
Note as well that when you invoke this:
NodeList.addAll(nodes);
... all you say is to add all elements of nodes (which is a list of Strings) to the (badly named) NodeList
, which is using Objects and thus adds only the strings inside. Which leads me to the next point.
You seem to be confused between your nodes
and NodeList
. Your NodeList
keeps growing over time, and that's what you add to your list.
So, even if doing things right, if we were to look at the end of each iteration at your nodes
, nodeList
and list
, we'd see:
i = 0
nodes: [PropertyStart,a,b,c,PropertyEnd]
nodeList: [PropertyStart,a,b,c,PropertyEnd]
list: [[PropertyStart,a,b,c,PropertyEnd]]
i = 1
nodes: [PropertyStart,d,e,f,PropertyEnd]
nodeList: [PropertyStart,a,b,c,PropertyEnd, PropertyStart,d,e,f,PropertyEnd]
list: [[PropertyStart,a,b,c,PropertyEnd],[PropertyStart,a,b,c,PropertyEnd, PropertyStart,d,e,f,PropertyEnd]]
i = 2
nodes: [PropertyStart,g,h,i,PropertyEnd]
nodeList: [PropertyStart,a,b,c,PropertyEnd,PropertyStart,d,e,f,PropertyEnd,PropertyStart,g,h,i,PropertyEnd]
list: [[PropertyStart,a,b,c,PropertyEnd],[PropertyStart,a,b,c,PropertyEnd, PropertyStart,d,e,f,PropertyEnd],[PropertyStart,a,b,c,PropertyEnd,PropertyStart,d,e,f,PropertyEnd,PropertyStart,g,h,i,PropertyEnd]]
and so on...
Don't use variable names starting with uppercase letters. So here, replace NodeList
with nodeList
).
You say "I want the "list" array [...]". This is confusing for whoever you will be communicating with: It's not an array. It's an implementation of List
backed by an array.
There's a difference between a type, an interface, and an implementation.
Use generic types, because static typing really helps with these errors. Also, use interfaces where possible, except if you have a good reason to use the concrete type.
So your code becomes:
List<String> nodes = new ArrayList<String>();
List<String> nodeList = new ArrayList<String>();
List<List<String>> list = new ArrayList<List<String>>();
You could do away with the nodeList
entirely, and write the following once you've fixed your types:
list.add(nodes);
Except if you have a very strong reason to do so, prefer to use the inner-most scope to declare variables and limit both their lifespan for their references and facilitate the separation of concerns in your code.
Here you could then move List<String> nodes
to be declared within the loop (and then forget the nodes.clear()
invocation).
A reason not to do this could be performance, as you might want to avoid recreating an ArrayList
on each iteration of the loop, but it's very unlikely that's a concern to you (and clean, readable and maintainable code has priority over pre-optimized code).
Last but not least, if you want help give us the exact reproducible case with a short, self-Contained, correct example.
Here you give us your program's outputs, but don't mention how you got them, so we're left to assume you did a System.out.println(list)
. And you confused a lot of people, as I think the output you give us is not what you actually got.
This is a tool that will help you, i installed it myself
Here is the link
In laymen's terms an unsigned int is an integer that can not be negative and thus has a higher range of positive values that it can assume. A signed int is an integer that can be negative but has a lower positive range in exchange for more negative values it can assume.
You may try with below query :
INSERT INTO errortable (dateupdated,table1id)
VALUES (to_date(to_char(sysdate,'dd/mon/yyyy hh24:mi:ss'), 'dd/mm/yyyy hh24:mi:ss' ),1083 );
To view the result of it:
SELECT to_char(hire_dateupdated, 'dd/mm/yyyy hh24:mi:ss')
FROM errortable
WHERE table1id = 1083;
if grep -q SomeString "$File"; then
Some Actions # SomeString was found
fi
You don't need [[ ]]
here. Just run the command directly. Add -q
option when you don't need the string displayed when it was found.
The grep
command returns 0 or 1 in the exit code depending on
the result of search. 0 if something was found; 1 otherwise.
$ echo hello | grep hi ; echo $?
1
$ echo hello | grep he ; echo $?
hello
0
$ echo hello | grep -q he ; echo $?
0
You can specify commands as an condition of if
. If the command returns 0 in its exitcode that means that the condition is true; otherwise false.
$ if /bin/true; then echo that is true; fi
that is true
$ if /bin/false; then echo that is true; fi
$
As you can see you run here the programs directly. No additional []
or [[]]
.
Directly with PHP is not possible but...
I write this simple code to save screen resolution on a PHP session to use on a image gallery.
<?php
session_start();
if(isset($_SESSION['screen_width']) AND isset($_SESSION['screen_height'])){
echo 'User resolution: ' . $_SESSION['screen_width'] . 'x' . $_SESSION['screen_height'];
} else if(isset($_REQUEST['width']) AND isset($_REQUEST['height'])) {
$_SESSION['screen_width'] = $_REQUEST['width'];
$_SESSION['screen_height'] = $_REQUEST['height'];
header('Location: ' . $_SERVER['PHP_SELF']);
} else {
echo '<script type="text/javascript">window.location = "' . $_SERVER['PHP_SELF'] . '?width="+screen.width+"&height="+screen.height;</script>';
}
?>
Btw you can also use the ui-sref attribute in your templates to pass objects
ui-sref="myState({ myParam: myObject })"
The asker has probably long since moved past this, but in case someone else searches for this...
There's another way to handle this, which I think might be the simplest.
Add a BroadcastReceiver
to your activity. Register it to receive some custom intent in onResume
and unregister it in onPause
. Then send out that intent from your service when you want to send out your status updates or what have you.
Make sure you wouldn't be unhappy if some other app listened for your Intent
(could anyone do anything malicious?), but beyond that, you should be alright.
Code sample was requested:
In my service, I have this:
// Do stuff that alters the content of my local SQLite Database
sendBroadcast(new Intent(RefreshTask.REFRESH_DATA_INTENT));
(RefreshTask.REFRESH_DATA_INTENT
is just a constant string.)
In my listening activity, I define my BroadcastReceiver
:
private class DataUpdateReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (intent.getAction().equals(RefreshTask.REFRESH_DATA_INTENT)) {
// Do stuff - maybe update my view based on the changed DB contents
}
}
}
I declare my receiver at the top of the class:
private DataUpdateReceiver dataUpdateReceiver;
I override onResume
to add this:
if (dataUpdateReceiver == null) dataUpdateReceiver = new DataUpdateReceiver();
IntentFilter intentFilter = new IntentFilter(RefreshTask.REFRESH_DATA_INTENT);
registerReceiver(dataUpdateReceiver, intentFilter);
And I override onPause
to add:
if (dataUpdateReceiver != null) unregisterReceiver(dataUpdateReceiver);
Now my activity is listening for my service to say "Hey, go update yourself." I could pass data in the Intent
instead of updating database tables and then going back to find the changes within my activity, but since I want the changes to persist anyway, it makes sense to pass the data via DB.
To extrapolate a bit on the other answers (in as Beginner-friendly a way as possible):
Check the object type with the GetType Method to see what you're working with: $scriptPath.GetType()
Lastly, a quick tip that helps with making one-liners: Get-Item has the gi
alias and Get-ChildItem has the gci
alias.
I am just updating this with Microsoft SQL Server Management Studio 2008 R2 version. if you run the installer normally, you can just add Management Tools – Basic, and by clicking Basic it should select Management Tools – Complete.
That is what worked for me.
https://www.electronjs.org/apps/asarui
UI for Asar, Extract All, or drag extract file/directory
You can simply do
print 2*'hello'
Dictionaries are unordered by definition, What would be the main reason for ordering by key? A list of tuples created by the sort method can be used for whatever the need may have been, but changing the list of tuples back into a dictionary will return a random order
>>> myDic
{10: 'b', 3: 'a', 5: 'c'}
>>> sorted(myDic.items())
[(3, 'a'), (5, 'c'), (10, 'b')]
>>> print(dict(myDic.items()))
{10: 'b', 3: 'a', 5: 'c'}
System.out.println()
High level Understanding
For understanding this we need to recall few basics of java:
Now with basic knowledge of java we know :
Lets get more in details:
out variable: static or instance?
called using class name, so we know its static variable of System class.
but its calling a method println() method so ‘out’ is an object of the reference type PrintStream.
the System class belongs to java.lang package
class System {
public static final PrintStream out;
//...
}
the Prinstream class belongs to java.io package
class PrintStream{
public void println();
//...
}