Here's an explanation I wrote recently to help with the void of information on this attribute. http://www.marklio.com/marklio/PermaLink,guid,ecc34c3c-be44-4422-86b7-900900e451f9.aspx (Internet Archive Wayback Machine link)
To quote the most relevant bits:
[Installing .NET] v4 is “non-impactful”. It should not change the behavior of existing components when installed.
The useLegacyV2RuntimeActivationPolicy attribute basically lets you say, “I have some dependencies on the legacy shim APIs. Please make them work the way they used to with respect to the chosen runtime.”
Why don’t we make this the default behavior? You might argue that this behavior is more compatible, and makes porting code from previous versions much easier. If you’ll recall, this can’t be the default behavior because it would make installation of v4 impactful, which can break existing apps installed on your machine.
The full post explains this in more detail. At RTM, the MSDN docs on this should be better.
There are two general ways of doing that. You will either create a Domain Object Model of that XML file, take a look at this
and the second choice is using event driven parsing, which is an alternative to DOM xml representation. Imho you can find the best overall comparison of these two basic techniques here. Of course there are much more to know about processing xml, for instance if you are given XML schema definition (XSD), you could use JAXB.
For removing older versions of all installed gems, following 2 commands are useful:
gem cleanup --dryrun
Above command will preview what gems are going to be removed.
gem cleanup
Above command will actually remove them.
Following answer of DruidKuma
Litte refactor of his factory with autowired constructor:
@Service
public class MyServiceFactory {
private static final Map<String, MyService> myServiceCache = new HashMap<>();
@Autowired
private MyServiceFactory(List<MyService> services) {
for(MyService service : services) {
myServiceCache.put(service.getType(), service);
}
}
public static MyService getService(String type) {
MyService service = myServiceCache.get(type);
if(service == null) throw new RuntimeException("Unknown service type: " + type);
return service;
}
}
You may find it easier to set up your tabs as follows:
M-x customize-group
At the Customize group:
prompt enter indent
.
You'll see a screen where you can set all you indenting options and set them for the current session or save them for all future sessions.
If you do it this way you'll want to set up a customisations file.
If you don't want to use numpy or a collections module you can use a dictionary:
d = dict()
a = [0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 1]
for item in a:
try:
d[item]+=1
except KeyError:
d[item]=1
result:
>>>d
{0: 8, 1: 4}
Of course you can also use an if/else statement. I think the Counter function does almost the same thing but this is more transparant.
I think several of the answers hit around the possible solution to your problem.
I agree the easiest (and best solution for SEO purposes) is the 301 redirect. In IIS this is fairly trivial, you'd create a site for subdomain.hostone.com, after creating the site, right-click on the site and go into properties. Click on the "Home Directory" tab of the site properties window that opens. Select the radio button "A redirection to a URL", enter the url for the new site (http://subdomain.hosttwo.com), and check the checkboxes for "The exact URL entered above", "A permanent redirection for this resource" (this second checkbox causes a 301 redirect, instead of a 302 redirect). Click OK, and you're done.
Or you could create a page on the site of http://subdomain.hostone.com, using one of the following methods (depending on what the hosting platform supports)
PHP Redirect:
<?
Header( "HTTP/1.1 301 Moved Permanently" );
Header( "Location: http://subdomain.hosttwo.com" );
?>
ASP Redirect:
<%@ Language=VBScript %>
<%
Response.Status="301 Moved Permanently"
Response.AddHeader "Location","http://subdomain.hosttwo.com"
%>
ASP .NET Redirect:
<script runat="server">
private void Page_Load(object sender, System.EventArgs e)
{
Response.Status = "301 Moved Permanently";
Response.AddHeader("Location","http://subdomain.hosttwo.com");
}
</script>
Now assuming your CNAME record is correctly created, then the only problem you are experiencing is that the site created for http://subdomain.hosttwo.com is using a shared IP, and host headers to determine which site should be displayed. To resolve this issue under IIS, in IIS Manager on the web server, you'd right-click on the site for subdomain.hosttwo.com, and click "Properties". On the displayed "Web Site" tab, you should see an "Advanced" button next to the IP address that you'll need to click. On the "Advanced Web Site Identification" window that appears, click "Add". Select the same IP address that is already being used by subdomain.hosttwo.com, enter 80 as the TCP port, and then enter subdomain.hosttwo.com as the Host Header value. Click OK until you are back to the main IIS Manager window, and you should be good to go. Open a browser, and browse to http://subdomain.hostone.com, and you'll see the site at http://subdomain.hosttwo.com appear, even though your URL shows http://subdomain.hostone.com
Hope that helps...
While using the date formats, you may want to keep in mind to always use MM
for months and mm
for minutes. That should resolve your problem.
If elements of array are also simple objects or arrays, you can use some function:
// search object
var element = { item:'book', title:'javasrcipt'};
[{ item:'handbook', title:'c++'}, { item:'book', title:'javasrcipt'}].some(function(el){
if( el.item === element.item && el.title === element.title ){
return true;
}
});
[['handbook', 'c++'], ['book', 'javasrcipt']].some(function(el){
if(el[0] == element.item && el[1] == element.title){
return true;
}
});
I usually use a defaultdict for situations like this. You supply a factory method that takes no arguments and creates a value when it sees a new key. It's more useful when you want to return something like an empty list on new keys (see the examples).
from collections import defaultdict
d = defaultdict(lambda: None)
print d['new_key'] # prints 'None'
I was having similar trouble and the following worked for me:
$('#datepicker').val('').datepicker('update');
Both method calls were needed, otherwise it didn't clear.
I had the exact same problem. You can use something like this:
$local = Get-Location;
$final_local = "C:\Processing";
if(!$local.Equals("C:\"))
{
cd "C:\";
if((Test-Path $final_local) -eq 0)
{
mkdir $final_local;
cd $final_local;
liga;
}
## If path already exists
## DB Connect
elseif ((Test-Path $final_local) -eq 1)
{
cd $final_local;
echo $final_local;
liga; (function created by you TODO something)
}
}
No Yes, using the File API in newer browsers. See TJ's answer for details.
If you need to support older browsers as well, you will have to use a Flash-based uploader like SWFUpload or Uploadify to do this.
The SWFUpload Features Demo shows how the file_size_limit
setting works.
Note that this (obviously) needs Flash, plus the way it works is a bit different from normal upload forms.
try this :
string getValue = Convert.ToString(cmd.ExecuteScalar());
This is, in essence, what AJAX is for. Your page loads, and you add an event to an element. When the user causes the event to be triggered, say by clicking something, your Javascript uses the XMLHttpRequest object to send a request to a server.
After the server responds (presumably with output), another Javascript function/event gives you a place to work with that output, including simply sticking it into the page like any other piece of HTML.
You can do it "by hand" with plain Javascript , or you can use jQuery. Depending on the size of your project and particular situation, it may be more simple to just use plain Javascript .
In this very basic example, we send a request to myAjax.php
when the user clicks a link. The server will generate some content, in this case "hello world!". We will put into the HTML element with the id output
.
The javascript
// handles the click event for link 1, sends the query
function getOutput() {
getRequest(
'myAjax.php', // URL for the PHP file
drawOutput, // handle successful request
drawError // handle error
);
return false;
}
// handles drawing an error message
function drawError() {
var container = document.getElementById('output');
container.innerHTML = 'Bummer: there was an error!';
}
// handles the response, adds the html
function drawOutput(responseText) {
var container = document.getElementById('output');
container.innerHTML = responseText;
}
// helper function for cross-browser request object
function getRequest(url, success, error) {
var req = false;
try{
// most browsers
req = new XMLHttpRequest();
} catch (e){
// IE
try{
req = new ActiveXObject("Msxml2.XMLHTTP");
} catch(e) {
// try an older version
try{
req = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
return false;
}
}
}
if (!req) return false;
if (typeof success != 'function') success = function () {};
if (typeof error!= 'function') error = function () {};
req.onreadystatechange = function(){
if(req.readyState == 4) {
return req.status === 200 ?
success(req.responseText) : error(req.status);
}
}
req.open("GET", url, true);
req.send(null);
return req;
}
The HTML
<a href="#" onclick="return getOutput();"> test </a>
<div id="output">waiting for action</div>
The PHP
// file myAjax.php
<?php
echo 'hello world!';
?>
Try it out: http://jsfiddle.net/GRMule/m8CTk/
Arguably, that is a lot of Javascript code. You can shorten that up by tightening the blocks or using more terse logic operators, of course, but there's still a lot going on there. If you plan on doing a lot of this type of thing on your project, you might be better off with a javascript library.
Using the same HTML and PHP from above, this is your entire script (with jQuery included on the page). I've tightened up the code a little to be more consistent with jQuery's general style, but you get the idea:
// handles the click event, sends the query
function getOutput() {
$.ajax({
url:'myAjax.php',
complete: function (response) {
$('#output').html(response.responseText);
},
error: function () {
$('#output').html('Bummer: there was an error!');
}
});
return false;
}
Try it out: http://jsfiddle.net/GRMule/WQXXT/
Don't rush out for jQuery just yet: adding any library is still adding hundreds or thousands of lines of code to your project just as surely as if you had written them. Inside the jQuery library file, you'll find similar code to that in the first example, plus a whole lot more. That may be a good thing, it may not. Plan, and consider your project's current size and future possibility for expansion and the target environment or platform.
If this is all you need to do, write the plain javascript once and you're done.
Documentation
XMLHttpRequest
on MDN - https://developer.mozilla.org/en/XMLHttpRequestXMLHttpRequest
on MSDN - http://msdn.microsoft.com/en-us/library/ie/ms535874%28v=vs.85%29.aspxjQuery.ajax
- http://api.jquery.com/jQuery.ajax/I would rather use plt.clf()
after every plt.show()
to just clear the current figure instead of closing and reopening it, keeping the window size and giving you a better performance and much better memory usage.
Similarly, you could do plt.cla()
to just clear the current axes.
To clear a specific axes, useful when you have multiple axes within one figure, you could do for example:
fig, axes = plt.subplots(nrows=2, ncols=2)
axes[0, 1].clear()
Try to run your server with the --insecure just like this:
python manage.py runserver --insecure
The two errors you have in your code are very different.
The first problem is that you're initializing and populating your Map
in the body of the class without a statement.
You can either have a static Map
and a static {//TODO manipulate Map}
statement in the body of the class, or initialize and populate the Map in a method or in the class' constructor.
The second problem is that you cannot treat a Map
syntactically like an array
, so the statement data["John"] = "Taxi Driver";
should be replaced by data.put("John", "Taxi Driver")
.
If you already have a "John" key in your HashMap
, its value will be replaced with "Taxi Driver".
Try to use GMT
instead of UTC
. They refer to the same time zone, yet the name GMT
is more common and might work.
For committing, I use the following strategies:
commit as often as possible.
Each feature change/bugfix should get its own commit (don't commit many files at once since that will make the history for that file unclear -- e.g. If I change a logging module and a GUI module independently and I commit both at once, both changes will be visible in both file histories. This makes reading a file history difficult),
don't break the build on any commit -- it should be possible to retrieve any version of the repository and build it.
All files that are necessary for building and running the app should be in SVN. Test files and such should not, unless they are part of the unit tests.
You can use the HTML tag in order to apply font size, font color in one line on JavaScript, as well as you can use .fontcolor()
method to define color, .fontsize()
method to define the font size, .bold()
method to define bold, etc. These are called JavaScript Built-in Functions.
Here is a list of some JavaScript built-in functions:
.big()
.small()
.italics()
.fixed()
.strike()
.sup()
The below built-in functions require parameters:
.fontsize() //e.g.: the size to be applied in number .fontsize(4)
.fontcolor("") //e.g.: the color to be applied in string .fontcolor("red")
.txt.link("") //e.g.: the url to be linkable as string .link("www.test.com")
.toUpperCase() //e.g.: the converted to uppercase to be applied in string .toUpperCase()
Remember the syntax is: string.functionName()
e.g.:
var txt = "Hello World!";
txt.bold();
This also can be done in one line:
var txt = "Hello World!".bold();
The result will be: Hello World!
You can use multiple built-in functions in one line, adding one next to the other. e.g.:
"10/22/2018".fontcolor("red").fontsize(4).bold()
The following is an example how I used it on my JavaScript code to change font (color, size, bold) using both HTML tags and JavaScript functions:
vForm.message = "<HTML><font size = 4 color = 'red'><b> Application Deadline was </b></font></HTML> " + "10/22/2018".fontcolor("red").fontsize(4).bold(); /* setting HTML font color, size, bold and combined them with JavaScript functions to change font color, size, bold in JavaScript code */
I'd like to provide an alternate solution, a robust solution similar to what I am about to propose was required in the latest version of ggtern, since introducing the canvas rotation feature.
Basically, you need to determine the relative positions using trigonometry, by building a function which returns an element_text
object, given angle (ie degrees) and positioning (ie one of x,y,top or right) information.
#Load Required Libraries
library(ggplot2)
library(gridExtra)
#Build Function to Return Element Text Object
rotatedAxisElementText = function(angle,position='x'){
angle = angle[1];
position = position[1]
positions = list(x=0,y=90,top=180,right=270)
if(!position %in% names(positions))
stop(sprintf("'position' must be one of [%s]",paste(names(positions),collapse=", ")),call.=FALSE)
if(!is.numeric(angle))
stop("'angle' must be numeric",call.=FALSE)
rads = (angle - positions[[ position ]])*pi/180
hjust = 0.5*(1 - sin(rads))
vjust = 0.5*(1 + cos(rads))
element_text(angle=angle,vjust=vjust,hjust=hjust)
}
Frankly, in my opinion, I think that an 'auto' option should be made available in ggplot2
for the hjust
and vjust
arguments, when specifying the angle, anyway, lets demonstrate how the above works.
#Demonstrate Usage for a Variety of Rotations
df = data.frame(x=0.5,y=0.5)
plots = lapply(seq(0,90,length.out=4),function(a){
ggplot(df,aes(x,y)) +
geom_point() +
theme(axis.text.x = rotatedAxisElementText(a,'x'),
axis.text.y = rotatedAxisElementText(a,'y')) +
labs(title = sprintf("Rotated %s",a))
})
grid.arrange(grobs=plots)
Which produces the following:
You can get path by this code
Dim CurDir as string = My.Application.Info.DirectoryPath
I am a bit late to answer this but none of the above worked for me.
This is what worked for me
@media only screen and (min-device-width: 768px) and (max-device-width: 1024px) {
//your styles here
}
The other answers so far create new commits that undo what is in older commits. It is possible to go back and "change history" as it were, but this can be a bit dangerous. You should only do this if the commit you're changing has not been pushed to other repositories.
The command you're looking for is git rebase --interactive
If you want to change HEAD~3, the command you want to issue is git rebase --interactive HEAD~4
. This will open a text editor and allow you to specify which commits you want to change.
Practice on a different repository before you try this with something important. The man pages should give you all the rest of the information you need.
If you need to split something into 3 pieces, such as an email address and you don't know the length of the middle part, try this (I just ran this on sqlserver 2012 so I know it works):
SELECT top 2000
emailaddr_ as email,
SUBSTRING(emailaddr_, 1,CHARINDEX('@',emailaddr_) -1) as username,
SUBSTRING(emailaddr_, CHARINDEX('@',emailaddr_)+1, (LEN(emailaddr_) - charindex('@',emailaddr_) - charindex('.',reverse(emailaddr_)) )) domain
FROM
emailTable
WHERE
charindex('@',emailaddr_)>0
AND
charindex('.',emailaddr_)>0;
GO
Hope this helps.
on windows, when you have no admin right, just create a new program shortcut to Rgui.exe. Then in the properties of that shortcut, go to the 'Shortcut' tab and modify the target to include the system language of your choice, e.g. "C:\Program Files\R\R-3.5.3\bin\x64\Rgui.exe" LANGUAGE=en
The following python script will work on any Mac (Snow Leopard and upward). It can be used on the command line with successive PDF files as arguments, or you can put in into a Run Shell Script action in Automator, and make a Service (Quick Action in Mojave).
You can set the resolution of the output image in the script.
The script and a Quick Action can be downloaded from github.
#!/usr/bin/python
# coding: utf-8
import os, sys
import Quartz as Quartz
from LaunchServices import (kUTTypeJPEG, kUTTypeTIFF, kUTTypePNG, kCFAllocatorDefault)
resolution = 300.0 #dpi
scale = resolution/72.0
cs = Quartz.CGColorSpaceCreateWithName(Quartz.kCGColorSpaceSRGB)
whiteColor = Quartz.CGColorCreate(cs, (1, 1, 1, 1))
# Options: kCGImageAlphaNoneSkipLast (no trans), kCGImageAlphaPremultipliedLast
transparency = Quartz.kCGImageAlphaNoneSkipLast
#Save image to file
def writeImage (image, url, type, options):
destination = Quartz.CGImageDestinationCreateWithURL(url, type, 1, None)
Quartz.CGImageDestinationAddImage(destination, image, options)
Quartz.CGImageDestinationFinalize(destination)
return
def getFilename(filepath):
i=0
newName = filepath
while os.path.exists(newName):
i += 1
newName = filepath + " %02d"%i
return newName
if __name__ == '__main__':
for filename in sys.argv[1:]:
pdf = Quartz.CGPDFDocumentCreateWithProvider(Quartz.CGDataProviderCreateWithFilename(filename))
numPages = Quartz.CGPDFDocumentGetNumberOfPages(pdf)
shortName = os.path.splitext(filename)[0]
prefix = os.path.splitext(os.path.basename(filename))[0]
folderName = getFilename(shortName)
try:
os.mkdir(folderName)
except:
print "Can't create directory '%s'"%(folderName)
sys.exit()
# For each page, create a file
for i in range (1, numPages+1):
page = Quartz.CGPDFDocumentGetPage(pdf, i)
if page:
#Get mediabox
mediaBox = Quartz.CGPDFPageGetBoxRect(page, Quartz.kCGPDFMediaBox)
x = Quartz.CGRectGetWidth(mediaBox)
y = Quartz.CGRectGetHeight(mediaBox)
x *= scale
y *= scale
r = Quartz.CGRectMake(0,0,x, y)
# Create a Bitmap Context, draw a white background and add the PDF
writeContext = Quartz.CGBitmapContextCreate(None, int(x), int(y), 8, 0, cs, transparency)
Quartz.CGContextSaveGState (writeContext)
Quartz.CGContextScaleCTM(writeContext, scale,scale)
Quartz.CGContextSetFillColorWithColor(writeContext, whiteColor)
Quartz.CGContextFillRect(writeContext, r)
Quartz.CGContextDrawPDFPage(writeContext, page)
Quartz.CGContextRestoreGState(writeContext)
# Convert to an "Image"
image = Quartz.CGBitmapContextCreateImage(writeContext)
# Create unique filename per page
outFile = folderName +"/" + prefix + " %03d.png"%i
url = Quartz.CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault, outFile, len(outFile), False)
# kUTTypeJPEG, kUTTypeTIFF, kUTTypePNG
type = kUTTypePNG
# See the full range of image properties on Apple's developer pages.
options = {
Quartz.kCGImagePropertyDPIHeight: resolution,
Quartz.kCGImagePropertyDPIWidth: resolution
}
writeImage (image, url, type, options)
del page
Here's an easy way to add custom blur without haggling with private APIs using UIViewPropertyAnimator:
First, declare class property:
var blurAnimator: UIViewPropertyAnimator!
Then set your blur view in viewDidLoad()
:
let blurEffectView = UIVisualEffectView()
blurEffectView.backgroundColor = .clear
blurEffectView.frame = view.bounds
blurEffectView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
view.addSubview(blurEffectView)
blurAnimator = UIViewPropertyAnimator(duration: 1, curve: .linear) { [blurEffectView] in
blurEffectView.effect = UIBlurEffect(style: .light)
}
blurAnimator.fractionComplete = 0.15 // set the blur intensity.
Note: This solution is not suitable for UICollectionView
/UITableView
cells
I would like to add that this problem is similar to common Java memory leaks.
When the JVM garbage collector is unable to clear the "waste" memory of your Java / Java EE application over time, OutOfMemoryError: Java heap space will be the outcome.
It is important to perform a proper diagnostic first:
I met the same problem. I found the answer in the website:http://www.17ext.com.
First,delete the JRE System Libraries. Then,import JRE System Libraries again.
I don't know why.However it fixed my problem,hope it can help you.
To customize tool bar style, first create tool bar custom style inheriting Widget.AppCompat.Toolbar, override properties and then add it to custom app theme as shown below, see http://www.zoftino.com/android-toolbar-tutorial for more information tool bar and styles.
<style name="MyAppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="colorPrimary">@color/colorPrimary</item>
<item name="colorPrimaryDark">@color/colorPrimaryDark</item>
<item name="toolbarStyle">@style/MyToolBarStyle</item>
</style>
<style name="MyToolBarStyle" parent="Widget.AppCompat.Toolbar">
<item name="android:background">#80deea</item>
<item name="titleTextAppearance">@style/MyTitleTextAppearance</item>
<item name="subtitleTextAppearance">@style/MySubTitleTextAppearance</item>
</style>
<style name="MyTitleTextAppearance" parent="TextAppearance.Widget.AppCompat.Toolbar.Title">
<item name="android:textSize">35dp</item>
<item name="android:textColor">#ff3d00</item>
</style>
<style name="MySubTitleTextAppearance" parent="TextAppearance.Widget.AppCompat.Toolbar.Subtitle">
<item name="android:textSize">30dp</item>
<item name="android:textColor">#1976d2</item>
</style>
Answering my own question.
curl -X GET --basic --user username:password \
https://www.example.com/mobile/resource
curl -X DELETE --basic --user username:password \
https://www.example.com/mobile/resource
curl -X PUT --basic --user username:password -d 'param1_name=param1_value' \
-d 'param2_name=param2_value' https://www.example.com/mobile/resource
POSTing a file and additional parameter
curl -X POST -F 'param_name=@/filepath/filename' \
-F 'extra_param_name=extra_param_value' --basic --user username:password \
https://www.example.com/mobile/resource
Following line should be called before you add your component
pnlButton.setLayout(null);
Above will set your content panel to use absolute layout. This means you'd always have to set your component's bounds explicitly by using setBounds
method.
In general I wouldn't recommend using absolute layout.
Edited for clarity:
This will work to to get the value if the remote.origin.url is in the form protocol://auth_info@git_host:port/project/repo.git. If you find it doesn't work, adjust the -f5 option that is part of the first cut command.
For the example remote.origin.url of protocol://auth_info@git_host:port/project/repo.git the output created by the cut command would contain the following:
-f1: protocol: -f2: (blank) -f3: auth_info@git_host:port -f4: project -f5: repo.git
If you are having problems, look at the output of the git config --get remote.origin.url
command to see which field contains the original repository. If the remote.origin.url does not contain the .git string then omit the pipe to the second cut command.
#!/usr/bin/env bash
repoSlug="$(git config --get remote.origin.url | cut -d/ -f5 | cut -d. -f1)"
echo ${repoSlug}
You can get the events from pygame and then watch out for the KEYDOWN
event, instead of looking at the keys returned by get_pressed()
(which gives you keys that are currently pressed down, whereas the KEYDOWN
event shows you which keys were pressed down on that frame).
What's happening with your code right now is that if your game is rendering at 30fps, and you hold down the left arrow key for half a second, you're updating the location 15 times.
events = pygame.event.get()
for event in events:
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
location -= 1
if event.key == pygame.K_RIGHT:
location += 1
To support continuous movement while a key is being held down, you would have to establish some sort of limitation, either based on a forced maximum frame rate of the game loop or by a counter which only allows you to move every so many ticks of the loop.
move_ticker = 0
keys=pygame.key.get_pressed()
if keys[K_LEFT]:
if move_ticker == 0:
move_ticker = 10
location -= 1
if location == -1:
location = 0
if keys[K_RIGHT]:
if move_ticker == 0:
move_ticker = 10
location+=1
if location == 5:
location = 4
Then somewhere during the game loop you would do something like this:
if move_ticker > 0:
move_ticker -= 1
This would only let you move once every 10 frames (so if you move, the ticker gets set to 10, and after 10 frames it will allow you to move again)
I follow Kelsey's first set of steps to add the installer classes to my service project, but instead of creating an MSI or setup.exe installer I make the service self installing/uninstalling. Here's a bit of sample code from one of my services you can use as a starting point.
public static int Main(string[] args)
{
if (System.Environment.UserInteractive)
{
// we only care about the first two characters
string arg = args[0].ToLowerInvariant().Substring(0, 2);
switch (arg)
{
case "/i": // install
return InstallService();
case "/u": // uninstall
return UninstallService();
default: // unknown option
Console.WriteLine("Argument not recognized: {0}", args[0]);
Console.WriteLine(string.Empty);
DisplayUsage();
return 1;
}
}
else
{
// run as a standard service as we weren't started by a user
ServiceBase.Run(new CSMessageQueueService());
}
return 0;
}
private static int InstallService()
{
var service = new MyService();
try
{
// perform specific install steps for our queue service.
service.InstallService();
// install the service with the Windows Service Control Manager (SCM)
ManagedInstallerClass.InstallHelper(new string[] { Assembly.GetExecutingAssembly().Location });
}
catch (Exception ex)
{
if (ex.InnerException != null && ex.InnerException.GetType() == typeof(Win32Exception))
{
Win32Exception wex = (Win32Exception)ex.InnerException;
Console.WriteLine("Error(0x{0:X}): Service already installed!", wex.ErrorCode);
return wex.ErrorCode;
}
else
{
Console.WriteLine(ex.ToString());
return -1;
}
}
return 0;
}
private static int UninstallService()
{
var service = new MyQueueService();
try
{
// perform specific uninstall steps for our queue service
service.UninstallService();
// uninstall the service from the Windows Service Control Manager (SCM)
ManagedInstallerClass.InstallHelper(new string[] { "/u", Assembly.GetExecutingAssembly().Location });
}
catch (Exception ex)
{
if (ex.InnerException.GetType() == typeof(Win32Exception))
{
Win32Exception wex = (Win32Exception)ex.InnerException;
Console.WriteLine("Error(0x{0:X}): Service not installed!", wex.ErrorCode);
return wex.ErrorCode;
}
else
{
Console.WriteLine(ex.ToString());
return -1;
}
}
return 0;
}
Simply to overcome the ZipException's, i have used a wrapper for commons-compress
1.14 called jarchivelib
written by thrau that makes it easy to extract or compress from and into File objects.
Example:
public static void main(String[] args) {
String zipfilePath =
"E:/Selenium_Server/geckodriver-v0.19.0-linux64.tar.gz";
//"E:/Selenium_Server/geckodriver-v0.19.0-win32.zip";
String outdir = "E:/Selenium_Server/";
exratctFileList(zipfilePath, outdir );
}
public void exratctFileList( String zipfilePath, String outdir ) throws IOException {
File archive = new File( zipfilePath );
File destinationDir = new File( outdir );
Archiver archiver = null;
if( zipfilePath.endsWith(".zip") ) {
archiver = ArchiverFactory.createArchiver( ArchiveFormat.ZIP );
} else if ( zipfilePath.endsWith(".tar.gz") ) {
archiver = ArchiverFactory.createArchiver( ArchiveFormat.TAR, CompressionType.GZIP );
}
archiver.extract(archive, destinationDir);
ArchiveStream stream = archiver.stream( archive );
ArchiveEntry entry;
while( (entry = stream.getNextEntry()) != null ) {
String entryName = entry.getName();
System.out.println("Entery Name : "+ entryName );
}
stream.close();
}
Maven dependency « You can download the jars from the Sonatype Maven Repository at org/rauschig/jarchivelib/.
<dependency>
<groupId>org.rauschig</groupId>
<artifactId>jarchivelib</artifactId>
<version>0.7.1</version>
</dependency>
@see
int numberOfRecords = 0;
numberOfRecords = dtFoo.Select().Length;
MessageBox.Show(numberOfRecords.ToString());
I'm not familiar with DB2, but have you tried COALESCE?
ie:
SELECT Product.ID, COALESCE(product.Name, "Internal") AS ProductName
FROM Product
A little googling, gives me these results:
RewriteEngine On
RewriteBase /
RewriteRule ^index.(.*)?$ http://domain.com/subfolder/ [r=301]This will redirect any attempt to access a file named index.something to your subfolder, whether the file exists or not.
Or try this:
RewriteCond %{HTTP_HOST} !^www.sample.com$ [NC]
RewriteRule ^(.*)$ %{HTTP_HOST}/samlse/$1 [R=301,L]
I haven't done much redirect in the .htaccess file, so I'm not sure if this will work.
Here is the best solution for this. (ANGULAR All Version)
Addressing solution: To set a default value for @Input variable. If no value passed to that input variable then It will take the default value.
I have provided solution for this kind of similar question. You can find the full solution from here
export class CarComponent implements OnInit {
private _defaultCar: car = {
// default isCar is true
isCar: true,
// default wheels will be 4
wheels: 4
};
@Input() newCar: car = {};
constructor() {}
ngOnInit(): void {
// this will concate both the objects and the object declared later (ie.. ...this.newCar )
// will overwrite the default value. ONLY AND ONLY IF DEFAULT VALUE IS PRESENT
this.newCar = { ...this._defaultCar, ...this.newCar };
// console.log(this.newCar);
}
}
You're trying to connect to localhost:8080 ... is any service running on your localhost and on this port? If not, the connection is refused which cause this error. I would suggest to check if there is anything running on localhost:8080 first.
This is a rather restricted case, but judging from the comments I've received I think it's worth noting.
I've seen people in the past use maps in the form of
map< const key, const val> Map;
to evade cases of accidental value overwriting, but then go ahead writing in some other bits of code:
const_cast< T >Map[]=val;
Their reason for doing this as I recall was because they were sure that in these certain bits of code they were not going to be overwriting map values; hence, going ahead with the more 'readable' method []
.
I've never actually had any direct trouble from the code that was written by these people, but I strongly feel up until today that risks - however small - should not be taken when they can be easily avoided.
In cases where you're dealing with map values that absolutely must not be overwritten, use insert
. Don't make exceptions merely for readability.
You won't always be able to simply generate the migration to already have the code you want. You can create an empty migration and then populate it with the code you need.
You can find information about how to accomplish different tasks in a migration here:
http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
More specifically, you can see how to drop a table using the following approach:
drop_table :table_name
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.2.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.6/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.2.1/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container">
<div class="row align-items-center justify-content-center" style="height:100vh;">
<div>Center Div Here</div>
</div>
</div>
</body>
</html>
It seems that all the variants were listed, except forEach
by lodash:
_.forEach([1, 2], (value) => {
console.log(value);
});
Maybe it is just my Java and C background showing, but I prefer CamelCase (CapCase) over punctuation in the name. My workgroup uses such names, probably to match the names of the app or service the repository contains.
You can access a string using []
, as you do for arrays:
$stringLength = strlen($str);
for ($i = 0; $i < $stringLength; $i++)
$char = $str[$i];
the simple resoluition is that you can use conda to upgrade setuptools or entire enviroment. (Specially for windows user.)
conda upgrade -c anaconda setuptools
if the setuptools is removed, you need to install setuptools again.
conda install -c anaconda setuptools
if these all methodes doesn't work, you can upgrade conda environement. But I do not recommend that you need to reinstall and uninstall some packages because after that it will exacerbate the situation.
check it out:
http://java.sun.com/docs/books/tutorial/uiswing/components/icon.html#getresource
I frequently find myself writing command line utilities wherein the first argument is meant to refer to one of many different classes. For example ./something.py feature command —-arguments
, where Feature
is a class and command
is a method on that class. Here's a base class that makes this easy.
The assumption is that this base class resides in a directory alongside all of its subclasses. You can then call ArgBaseClass(foo = bar).load_subclasses()
which will return a dictionary. For example, if the directory looks like this:
Assuming feature.py
implements class Feature(ArgBaseClass)
, then the above invocation of load_subclasses
will return { 'feature' : <Feature object> }
. The same kwargs
(foo = bar
) will be passed into the Feature
class.
#!/usr/bin/env python3
import os, pkgutil, importlib, inspect
class ArgBaseClass():
# Assign all keyword arguments as properties on self, and keep the kwargs for later.
def __init__(self, **kwargs):
self._kwargs = kwargs
for (k, v) in kwargs.items():
setattr(self, k, v)
ms = inspect.getmembers(self, predicate=inspect.ismethod)
self.methods = dict([(n, m) for (n, m) in ms if not n.startswith('_')])
# Add the names of the methods to a parser object.
def _parse_arguments(self, parser):
parser.add_argument('method', choices=list(self.methods))
return parser
# Instantiate one of each of the subclasses of this class.
def load_subclasses(self):
module_dir = os.path.dirname(__file__)
module_name = os.path.basename(os.path.normpath(module_dir))
parent_class = self.__class__
modules = {}
# Load all the modules it the package:
for (module_loader, name, ispkg) in pkgutil.iter_modules([module_dir]):
modules[name] = importlib.import_module('.' + name, module_name)
# Instantiate one of each class, passing the keyword arguments.
ret = {}
for cls in parent_class.__subclasses__():
path = cls.__module__.split('.')
ret[path[-1]] = cls(**self._kwargs)
return ret
If you absolutely have to add the property to the object, I believe you could cast it as an array, add your property (as a new array key), then cast it back as an object. The only time you run into stdClass
objects (I believe) is when you cast an array as an object or when you create a new stdClass
object from scratch (and of course when you json_decode()
something - silly me for forgetting!).
Instead of:
$foo = new StdClass();
$foo->bar = '1234';
You'd do:
$foo = array('bar' => '1234');
$foo = (object)$foo;
Or if you already had an existing stdClass object:
$foo = (array)$foo;
$foo['bar'] = '1234';
$foo = (object)$foo;
Also as a 1 liner:
$foo = (object) array_merge( (array)$foo, array( 'bar' => '1234' ) );
org.postgresql.util.PSQLException: FATAL: sorry, too many clients already.
Summary:
You opened up more than the allowed limit of connections to the database. You ran something like this: Connection conn = myconn.Open();
inside of a loop, and forgot to run conn.close();
. Just because your class is destroyed and garbage collected does not release the connection to the database. The quickest fix to this is to make sure you have the following code with whatever class that creates a connection:
protected void finalize() throws Throwable
{
try { your_connection.close(); }
catch (SQLException e) {
e.printStackTrace();
}
super.finalize();
}
Place that code in any class where you create a Connection. Then when your class is garbage collected, your connection will be released.
Run this SQL to see postgresql max connections allowed:
show max_connections;
The default is 100. PostgreSQL on good hardware can support a few hundred connections at a time. If you want to have thousands, you should consider using connection pooling software to reduce the connection overhead.
Take a look at exactly who/what/when/where is holding open your connections:
SELECT * FROM pg_stat_activity;
The number of connections currently used is:
SELECT COUNT(*) from pg_stat_activity;
Debugging strategy
You could give different usernames/passwords to the programs that might not be releasing the connections to find out which one it is, and then look in pg_stat_activity to find out which one is not cleaning up after itself.
Do a full exception stack trace when the connections could not be created and follow the code back up to where you create a new Connection
, make sure every code line where you create a connection ends with a connection.close();
How to set the max_connections higher:
max_connections in the postgresql.conf sets the maximum number of concurrent connections to the database server.
SHOW config_file;
/var/lib/pgsql/data/postgresql.conf
max_connections=100
.What's the maximum max_connections?
Use this query:
select min_val, max_val from pg_settings where name='max_connections';
I get the value 8388607
, in theory that's the most you are allowed to have, but then a runaway process can eat up thousands of connections, and surprise, your database is unresponsive until reboot. If you had a sensible max_connections like 100. The offending program would be denied a new connection.
In my case, I was defining a bean and autowiring it in the constructor of the same class file.
@SpringBootApplication
public class MyApplication {
private MyBean myBean;
public MyApplication(MyBean myBean) {
this.myBean = myBean;
}
@Bean
public MyBean myBean() {
return new MyBean();
}
}
My solution was to move the bean definition to another class file.
@Configuration
public CustomConfig {
@Bean
public MyBean myBean() {
return new MyBean();
}
}
Assuming you're wanting to undo the effects of git rm <file>
or rm <file>
followed by git add -A
or something similar:
# this restores the file status in the index
git reset -- <file>
# then check out a copy from the index
git checkout -- <file>
To undo git add <file>
, the first line above suffices, assuming you haven't committed yet.
The complete list of the regexp_like and other regexp functions in Oracle 11.1:
http://66.221.222.85/reference/regexp.html
In your example:
SELECT X
FROM test
WHERE REGEXP_LIKE(X, '^[[:digit:]]$');
Delegates Overview
Delegates have the following properties:
- Delegates are similar to C++ function pointers, but are type safe.
- Delegates allow methods to be passed as parameters.
- Delegates can be used to define callback methods.
- Delegates can be chained together; for example, multiple methods can be called on a single event.
- Methods don't need to match the delegate signature exactly. For more information, see Covariance and Contra variance.
- C# version 2.0 introduces the concept of Anonymous Methods, which permit code blocks to be passed as parameters in place of a separately defined method.
I don't like the auto-commit that git revert
does, so this might be helpful for some.
If you just want the modified files not the auto-commit, you can use --no-commit
% git revert --no-commit <commit hash>
which is the same as the -n
% git revert -n <commit hash>
You have just created an empty integer array. The array guess
does not contain anything to my knowledge. The rest you should work out to get better.
If the delimiter is /, you will need to escape.
In my case I'm using C# OracleCommand
with OracleParameter
, and I set all the the parameters Size
property to max length of each column, then the error solved.
OracleParameter parm1 = new OracleParameter();
param1.OracleDbType = OracleDbType.Varchar2;
param1.Value = "test1";
param1.Size = 8;
OracleParameter parm2 = new OracleParameter();
param2.OracleDbType = OracleDbType.Varchar2;
param2.Value = "test1";
param2.Size = 12;
Another option to consider is disabling it when you do not want it to be able to be changed and enabling it:
//When select should be disabled:
{
$('#my_select').attr('disabled', 'disabled');
}
//When select should not be disabled
{
$('#my_select').removeAttr('disabled');
}
Update since your comment (if I understand the functionality you want):
$("#dropdown").change(function()
{
var answer = confirm("Are you sure you want to change your selection?")
{
if(answer)
{
//Update dropdown (Perform update logic)
}
else
{
//Allow Change (Do nothing - allow change)
}
}
});
Use the PHP function serialize()
to convert arrays to strings. These strings can easily be stored in MySQL database. Using unserialize()
they can be converted to arrays again if needed.
Since JsonSerializer is deprecated in .Net 4.0+ I used http://www.newtonsoft.com/json to solve this issue.
NuGet- > Install-Package Newtonsoft.Json
In my case, I've just downloaded the missing file directly from here: https://gitlab.com/mailman/mailman-website/raw/a97d6b4c5b29594004e3855f1ab1222449d0c211/content/fonts/glyphicons-halflings-regular.woff2
As the message says, you have a task which threw an unhandled exception.
Turn on Break on All Exceptions (Debug, Exceptions) and rerun the program.
This will show you the original exception when it was thrown in the first place.
(comment appended): In VS2015 (or above). Select Debug > Options > Debugging > General and unselect the "Enable Just My Code" option.
I had many connections I couldn't delete but didn't want to delete them all. So, I extended Dang Thanh and Richard Ho 's solution so it would prompt user to decide which connections to delete.
To delete some but not all connections in a Workbook:
Public Function deleteConnections()
Dim xlBook As Workbook
Dim cn As WorkbookConnection
Dim Result As Variant
Set xlBook = ActiveWorkbook
For Each cn In xlBook.Connections
Dim strMsg As String
strMsg = "Would you like to delete: " & vbNewLine & cn.Name
Result = MsgBox(strMsg, vbYesNo)
If Result = vbYes Then
cn.Delete
End If
Next cn
End Function
I hope it also useful
window.addEventListener("load", function()
{
if(!window.pageYOffset)
{
hideAddressBar();
}
window.addEventListener("orientationchange", hideAddressBar);
});
This will also happen if you have written compileSdkVersion = 22
e.g. (as used in the "new new" Android build system) instead of compileSdkVersion 22
.
I was looking for the onClick option to set the title and body of the modal based on the item in a list. T145's answer helped a lot, so I wanted to share how I used it.
Make sure the tag containing the JavaScript function is of type text/javascript to avoid conflicts:
<script type="text/javascript"> function showMyModalSetTitle(myTitle, myBodyHtml) {
/*
* '#myModayTitle' and '#myModalBody' refer to the 'id' of the HTML tags in
* the modal HTML code that hold the title and body respectively. These id's
* can be named anything, just make sure they are added as necessary.
*
*/
$('#myModalTitle').html(myTitle);
$('#myModalBody').html(myBodyHtml);
$('#myModal').modal('show');
}</script>
This function can now be called in the onClick method from inside an element such as a button:
<button type="button" onClick="javascript:showMyModalSetTitle('Some Title', 'Some body txt')"> Click Me! </button>
Based on Mohamed23gharbi's answer:
function change(selector, value) {
var sortBySelect = document.querySelector(selector);
sortBySelect.value = value;
sortBySelect.dispatchEvent(new Event("change"));
}
function click(selector) {
var sortBySelect = document.querySelector(selector);
sortBySelect.dispatchEvent(new Event("click"));
}
function test() {
change("select#MySelect", 19);
click("button#MyButton");
click("a#MyLink");
}
In my case, where the elements were created by vue, this is the only way that works.
if you want to disable the scrollbar, but still able to scroll the content of inner DIV, use below code in css,
.divHideScroll::-webkit-scrollbar {
width: 0 !important
}
.divHideScroll {
overflow: -moz-scrollbars-none;
}
.divHideScroll {
-ms-overflow-style: none;
}
divHideScroll is the class name of the target div.
It will work in all major browser (Chrome, Safari, Mozilla, Opera, and IE)
A Looper has a synchronized
MessageQueue
that's used to process Messages placed on the queue.
It implements a Thread
Specific Storage Pattern.
Only one Looper
per Thread
. Key methods include prepare()
,loop()
and quit()
.
prepare()
initializes the current Thread
as a Looper
. prepare()
is static
method that uses the ThreadLocal
class as shown below.
public static void prepare(){
...
sThreadLocal.set
(new Looper());
}
prepare()
must be called explicitly before running the event loop. loop()
runs the event loop which waits for Messages to arrive on a specific Thread's messagequeue. Once the next Message is received,the loop()
method dispatches the Message to its target handlerquit()
shuts down the event loop. It doesn't terminate the loop,but instead it enqueues a special messageLooper
can be programmed in a Thread
via several steps
Extend Thread
Call Looper.prepare()
to initialize Thread as a Looper
Create one or more Handler
(s) to process the incoming messages
Looper.loop()
to process messages until the loop is told to quit()
. @victor hugo and @unwind are correct, and victor's solution is by far the simplest. However BEWARE of externals in your SVN project. If you reference external libraries, the external's revision reference (whether a tag, or HEAD, or number) will remain unchanged when you tag directories that have external references.
It is possible to create a script to handle this aspect of tagging, for a discussion on that topic, see this SO article: Tagging an SVN checkout with externals
Assuming you cannot modify DDL (to create a unique constraint) or are limited to only being able to write DML then check for a null on filtered result of your values against the whole table
insert into funds (ID, date, price)
select
T.*
from
(select 23 ID, '2013-02-12' date, 22.43 price) T
left join
funds on funds.ID = T.ID and funds.date = T.date
where
funds.ID is null
THIS IS JUST A NOTE FOR ANYONE DEALING WITH THIS PROBLEM USING THE RUBY DRIVER
I had this same problem when using the Ruby Gem.
To set slaveOk in Ruby, you just pass it as an argument when you create the client like this:
mongo_client = MongoClient.new("localhost", 27017, { slave_ok: true })
https://github.com/mongodb/mongo-ruby-driver/wiki/Tutorial#making-a-connection
mongo_client = MongoClient.new # (optional host/port args)
Notice that 'args' is the third optional argument.
Here's my implementation from meta64.com as a Spring Singleton. If you want to create a ciper instance for each call that would work also, and then you could remove the 'synchronized' calls, but beware 'cipher' is not thread-safe.
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
@Component
@Scope("singleton")
public class Encryptor {
@Value("${aeskey}")
private String keyStr;
private Key aesKey = null;
private Cipher cipher = null;
synchronized private void init() throws Exception {
if (keyStr == null || keyStr.length() != 16) {
throw new Exception("bad aes key configured");
}
if (aesKey == null) {
aesKey = new SecretKeySpec(keyStr.getBytes(), "AES");
cipher = Cipher.getInstance("AES");
}
}
synchronized public String encrypt(String text) throws Exception {
init();
cipher.init(Cipher.ENCRYPT_MODE, aesKey);
return toHexString(cipher.doFinal(text.getBytes()));
}
synchronized public String decrypt(String text) throws Exception {
init();
cipher.init(Cipher.DECRYPT_MODE, aesKey);
return new String(cipher.doFinal(toByteArray(text)));
}
public static String toHexString(byte[] array) {
return DatatypeConverter.printHexBinary(array);
}
public static byte[] toByteArray(String s) {
return DatatypeConverter.parseHexBinary(s);
}
/*
* DO NOT DELETE
*
* Use this commented code if you don't like using DatatypeConverter dependency
*/
// public static String toHexStringOld(byte[] bytes) {
// StringBuilder sb = new StringBuilder();
// for (byte b : bytes) {
// sb.append(String.format("%02X", b));
// }
// return sb.toString();
// }
//
// public static byte[] toByteArrayOld(String s) {
// int len = s.length();
// byte[] data = new byte[len / 2];
// for (int i = 0; i < len; i += 2) {
// data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character.digit(s.charAt(i +
// 1), 16));
// }
// return data;
// }
}
You just need to toggle the value of "isReplyFormOpen" on ng-click event
<a ng-click="isReplyFormOpen = !isReplyFormOpen">Reply</a>
<div ng-show="isReplyFormOpen" id="replyForm">
</div>
QuickPDF seems to be a reasonable library that should do what you want for a reasonable price.
http://www.quickpdflibrary.com/ - They have a 30 day trial.
iconoclast's answer did not work for me.
I upgraded my php from 5.3.* (xampp 1.7.4) to 5.5.* (xampp 1.8.3) and the problem was solved.
Try iconoclast's answer first, if it doesn't work then upgrading might solve the problem.
VB.NET
MyList.OrderBy(Function(f) f.StartDate).ThenByDescending(Function(f) f.EndDate)
OR
From l In MyList Order By l.StartDate Ascending, l.EndDate Descending
I just discovered Telerik has some great components, including Grid, and they are open source too. http://demos.telerik.com/aspnet-mvc/
The following MySQL statement should modify your column to accept NULLs.
ALTER TABLE `MyTable`
ALTER COLUMN `Col3` varchar(20) DEFAULT NULL
In case someone is interested in dplyr
solution, it's very intuitive:
dt <- dt %>%
slice(1:4)
I'm able to get the Class of the generic type this way:
class MyList<T> {
Class<T> clazz = (Class<T>) DAOUtil.getTypeArguments(MyList.class, this.getClass()).get(0);
}
You need two functions from this file: http://code.google.com/p/hibernate-generic-dao/source/browse/trunk/dao/src/main/java/com/googlecode/genericdao/dao/DAOUtil.java
For more explanation: http://www.artima.com/weblogs/viewpost.jsp?thread=208860
Use the insert
method of a list:
l = list(...)
l.insert(index, item)
Alternatively, you can use a slice notation:
l[index:index] = [item]
If you want to move an item that's already in the list to the specified position, you would have to delete it and insert it at the new position:
l.insert(newindex, l.pop(oldindex))
There is no option for this, but you can extend the 'walker' object that WordPress uses to create the menu HTML. Only one method needs to be overridden:
class My_Walker_Nav_Menu extends Walker_Nav_Menu {
function start_lvl(&$output, $depth) {
$indent = str_repeat("\t", $depth);
$output .= "\n$indent<ul class=\"my-sub-menu\">\n";
}
}
Then you just pass an instance of your walker as an argument to wp_nav_menu
like so:
'walker' => new My_Walker_Nav_Menu()
In JUnit 4:
@Before
method, to catch failures.final
, exactly as stated in the question,@Before
, to catch failures.@BeforeClass
, but be careful of dependencies between tests.Initializing in a @Before
method or test method allows you to get better error reporting on failures. This is especially useful for instantiating the Class Under Test (which you might break), but is also useful for calling external systems, like filesystem access ("file not found") or connecting to a database ("connection refused").
It is acceptable to have a simple standard and always use @Before
(clear errors but verbose) or always initialize in declaration (concise but gives confusing errors), since complex coding rules are hard to follow, and this isn't a big deal.
Initializing in setUp
is a relic of JUnit 3, where all test instances were initialized eagerly, which causes problems (speed, memory, resource exhaustion) if you do expensive initialization. Thus best practice was to do expensive initialization in setUp
, which was only run when the test was executed. This no longer applies, so it is much less necessary to use setUp
.
This summarizes several other replies that bury the lede, notably by Craig P. Motlin (question itself and self-answer), Moss Collum (class under test), and dsaff.
Try EPPlus if you use Excel 2007. Supports ranges, cellstyling, charts, shapes, pictures and a lot of other stuff
I have worked extensively in Excel and have found the following 3 points very useful
You can find this by using the following property on a sheet
ActiveSheet.UsedRange.Rows.Count
ActiveSheet.UsedRange.Columns.Count
If this range is more than the cells on which you have data, delete the rest of the rows/columns
You will be surprised to see the amount of space it can free
XLSM format is to make Excel compliant with Open XML, but there are very few instances when we actually use the XML format of Excel. This reduces size by almost 50% if not more
For example if you have to save the stock price for around 10 years, and you need to save Open, High, Low, Close for a stock, this would result in (252*10) * (4) cells being used
Instead, of using separate columns for Open,High,Low,Close save them in a single column with a field separator Open:High:Low:Close
You can easily write a function to extract info from the single column whenever you want to, but it will free up almost 2/3rd space that you are currently taking up
If you run GNOME, you can use the system monitor (System->Administration->System Monitor) to kill processes as you would under Windows. KDE will have something similar.
Two alternatives for closing the current window are ZZ
and ZQ
, which will, respectively, save and not save changes to the displayed buffer.
Just wanted to point out that in the case of having a hidden submit button, you can just use the ngShow directive and set it to false like so:
HTML
<form ng-submit="myFunc()">
<input type="text" name="username">
<input type="submit" value="submit" ng-show="false">
</form>
this.tablenameTableAdapter.Fill(this.databasenameDataSet.tablename)
If you want the overflow to wrap: flex-flow: row wrap
extension UIView {
func addBorder(edge: UIRectEdge, color: UIColor, borderWidth: CGFloat) {
let seperator = UIView()
self.addSubview(seperator)
seperator.translatesAutoresizingMaskIntoConstraints = false
seperator.backgroundColor = color
if edge == .top || edge == .bottom
{
seperator.leadingAnchor.constraint(equalTo: self.leadingAnchor, constant: 0).isActive = true
seperator.trailingAnchor.constraint(equalTo: self.trailingAnchor, constant: 0).isActive = true
seperator.heightAnchor.constraint(equalToConstant: borderWidth).isActive = true
if edge == .top
{
seperator.topAnchor.constraint(equalTo: self.topAnchor, constant: 0).isActive = true
}
else
{
seperator.bottomAnchor.constraint(equalTo: self.bottomAnchor, constant: 0).isActive = true
}
}
else if edge == .left || edge == .right
{
seperator.topAnchor.constraint(equalTo: self.topAnchor, constant: 0).isActive = true
seperator.bottomAnchor.constraint(equalTo: self.bottomAnchor, constant: 0).isActive = true
seperator.widthAnchor.constraint(equalToConstant: borderWidth).isActive = true
if edge == .left
{
seperator.leadingAnchor.constraint(equalTo: self.leadingAnchor, constant: 0).isActive = true
}
else
{
seperator.trailingAnchor.constraint(equalTo: self.trailingAnchor, constant: 0).isActive = true
}
}
}
}
Swift 4.2
My solution will (vertically) center the view on a UITextField
if its position is under the keyboard.
Step 1: Create new swift file and copy-paste UIViewWithKeyboard
class.
Step 2: In Interface Builder set it as a Custom Class for your top most UIView
.
import UIKit
class UIViewWithKeyboard: UIView {
@IBInspectable var offsetMultiplier: CGFloat = 0.75
private var keyboardHeight = 0 as CGFloat
private weak var activeTextField: UITextField?
override func awakeFromNib() {
super.awakeFromNib()
NotificationCenter.default.addObserver(self, selector: #selector(UIViewWithKeyboard.textDidBeginEditing),
name: UITextField.textDidBeginEditingNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(UIViewWithKeyboard.keyboardWillShow),
name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(UIViewWithKeyboard.keyboardWillHide),
name: UIResponder.keyboardWillHideNotification, object: nil)
}
@objc func textDidBeginEditing(_ notification: NSNotification) {
self.activeTextField = notification.object as? UITextField
}
@objc func keyboardWillShow(_ notification: Notification) {
if let frameValue = notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue {
keyboardHeight = frameValue.cgRectValue.size.height
if let textField = self.activeTextField {
let offset = textField.frame.maxY < frame.maxY - keyboardHeight ? 0
: textField.frame.maxY - (frame.maxY - keyboardHeight) * offsetMultiplier
self.setView(offset: offset)
}
}
}
@objc func keyboardWillHide(_ notification: NSNotification) {
self.setView(offset: 0)
}
func setView(offset: CGFloat) {
UIView.animate(withDuration: 0.25) {
self.bounds.origin.y = offset
}
}
}
Another one is:
{{ myentity.text[:50] ~ '...' }}
I had this same issue, let me post my code so that you can all see it, and not do the same thing that I did.
@Override
protected void onResume()
{
super.onResume();
fragManager = getSupportFragmentManager();
Fragment answerPad=getDefaultAnswerPad();
setAnswerPad(answerPad);
setContentView(R.layout.abstract_test_view);
}
protected void setAnswerPad(AbstractAnswerFragment pad)
{
fragManager.beginTransaction()
.add(R.id.AnswerArea, pad, "AnswerArea")
.commit();
fragManager.executePendingTransactions();
}
Note that I was setting up fragments before I setContentView
. Ooops.
Starting from Android Studio 2.3.2 now you can create an AVD that has Play Store pre-installed on it. Currently, it is supported on the AVD's running
For other emulators, you can try the solution mentioned in this answer.
With java lambdas (available since java 8) you can simply convert javax.swing.filechooser.FileFilter
to java.io.FileFilter
in one line.
javax.swing.filechooser.FileFilter swingFilter = new FileNameExtensionFilter("jpeg files", "jpeg");
java.io.FileFilter ioFilter = file -> swingFilter.accept(file);
new File("myDirectory").listFiles(ioFilter);
Check that path to database data files exists ;) :
Sun Nov 06 18:48:37 [initandlisten] exception in initAndListen: 10296 dbpath (/data/db) does not exist, terminating
Look closely at the two dashes in
unzipRelease –Src '$ReleaseFile' -Dst '$Destination'
This first one is not a normal dash but an en-dash (–
in HTML). Replace that with the dash found before Dst
.
EDIT: (for laravel)
Just Came across this issue while working on a project in laravel. My tables were messed up, needed to frequent changes on columns. Once the tables were there I wasn't able to run php artisan migrate
anymore.
I've done following to get rid of the issue-
$ composer dump-autoload -o
php artisan migrate
Previous Comment, regarding lumen
[Well, pretty late to the party (and possibly a different party than what I was looking for). I banged my head, screamed out loud and by the grace of gray skull just found a solution.]
I'm developing an restful app using lumen and I'm new to it. This is my first project/experiment using laraval and lumen. My dependencies-
"require": {
"php": ">=5.6.4",
"laravel/lumen-framework": "5.4.*",
"vlucas/phpdotenv": "~2.2",
"barryvdh/laravel-cors": "^0.8.6",
"league/fractal": "^0.13.0"
},
"require-dev": {
"fzaninotto/faker": "~1.4",
"phpunit/phpunit": "~5.0",
"mockery/mockery": "~0.9.4"
}
Anyway, everything was fine until yesterday night but suddenly phpunit
started complaining about an already existed table.
Caused by
PDOException: SQLSTATE[42S01]: Base table or view already exists: 1050 Table 'items' already exists
Duh! Items
table should exist in the database, or else how am i supposed to save items!
Anyway the problem only persisted in the test classes, but strangely not in the browser (I checked with chrome, firefox and postman altering headers). I was getting JSON responses with data as expected.
I dropped the database and recreated it with lots of migrate
, refresh
, rollback
. Everything was fine but in phpunit
.
Out of desperation I removed my migration files (of course I took a backup first ) then hit phpunit
in the terminal. Same thing all over again.
Suddenly I remembered that I put a different database name in the phpunit.xml
file for testing purpose only. I checked that database and guess what! There was a table named items
. I removed this table manually, run phpunit
, everything started working just fine.
I'm documenting my experience for future references only and with hope this might help someone in future.
Use li:before
with an escaped Hex HTML Entity (or any plain text).
Example
My example will produce lists with check marks as bullets.
CSS:
ul {
list-style: none;
padding: 0px;
}
ul li:before
{
content: '\2713';
margin: 0 1em; /* any design */
}
Browser Compatibility
Haven't tested myself, but it should be supported as of IE8. At least that's what quirksmode & css-tricks say.
You can use conditional comments to apply older/slower solutions like images, or scripts. Better yet, use both with <noscript>
for the images.
HTML:
<!--[if lt IE 8]>
*SCRIPT SOLUTION*
<noscript>
*IMAGE SOLUTION*
</noscript>
<![endif]-->
About background images
Background images are indeed easy to handle, but...
background-size
is actually only as of IE9.list-style
(the more logical choice) easier.Enjoy.
Posted a general purpose file and folder handling class for copy, move, delete, calculate size, etc., that can handle a single file or a set of folders.
https://gist.github.com/4689551
To use:
To copy (or move) a single file or a set of folders/files:
$files = new Files();
$results = $files->copyOrMove('source/folder/optional-file', 'target/path', 'target-file-name-for-single-file.only', 'copy');
Delete a single file or all files and folders in a path:
$files = new Files();
$results = $files->delete('source/folder/optional-file.name');
Calculate the size of a single file or a set of files in a set of folders:
$files = new Files();
$results = $files->calculateSize('source/folder/optional-file.name');
Drop the spaces around the =
sign:
#!/bin/bash
STR="Hello World"
echo $STR
You may want to know why this is happening. Together with the great explanation by that other guy, find a reference of Why does my shell script choke on whitespace or other special characters? written by Gilles in Unix & Linux:
Why do I need to write
"$foo"
? What happens without the quotes?
$foo
does not mean “take the value of the variablefoo
”. It means something much more complex:
- First, take the value of the variable.
- Field splitting: treat that value as a whitespace-separated list of fields, and build the resulting list. For example, if the variable contains
foo * bar ?
then the result of this step is the 3-element listfoo
,*
,bar
.- Filename generation: treat each field as a glob, i.e. as a wildcard pattern, and replace it by the list of file names that match this pattern. If the pattern doesn't match any files, it is left unmodified. In our example, this results in the list containing
foo
, following by the list of files in the current directory, and finallybar
. If the current directory is empty, the result isfoo
,*
,bar
.Note that the result is a list of strings. There are two contexts in shell syntax: list context and string context. Field splitting and filename generation only happen in list context, but that's most of the time. Double quotes delimit a string context: the whole double-quoted string is a single string, not to be split. (Exception:
"$@"
to expand to the list of positional parameters, e.g."$@"
is equivalent to"$1" "$2" "$3"
if there are three positional parameters. See What is the difference between $* and $@?)The same happens to command substitution with
$(foo)
or with`foo`
. On a side note, don't use`foo`
: its quoting rules are weird and non-portable, and all modern shells support$(foo)
which is absolutely equivalent except for having intuitive quoting rules.The output of arithmetic substitution also undergoes the same expansions, but that isn't normally a concern as it only contains non-expandable characters (assuming
IFS
doesn't contain digits or-
).See When is double-quoting necessary? for more details about the cases when you can leave out the quotes.
Unless you mean for all this rigmarole to happen, just remember to always use double quotes around variable and command substitutions. Do take care: leaving out the quotes can lead not just to errors but to security holes.
The answer that Pablo Santa Cruz gave is correct; however, in case anybody stumbled on this page and wants more clarification, here is a detailed breakdown.
Suppose we have the following tables:
-- t1
id name
1 Tim
2 Marta
-- t2
id name
1 Tim
3 Katarina
An inner join, like this:
SELECT *
FROM `t1`
INNER JOIN `t2` ON `t1`.`id` = `t2`.`id`;
Would get us only records that appear in both tables, like this:
1 Tim 1 Tim
Inner joins don't have a direction (like left or right) because they are explicitly bidirectional - we require a match on both sides.
Outer joins, on the other hand, are for finding records that may not have a match in the other table. As such, you have to specify which side of the join is allowed to have a missing record.
LEFT JOIN
and RIGHT JOIN
are shorthand for LEFT OUTER JOIN
and RIGHT OUTER JOIN
; I will use their full names below to reinforce the concept of outer joins vs inner joins.
A left outer join, like this:
SELECT *
FROM `t1`
LEFT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`;
...would get us all the records from the left table regardless of whether or not they have a match in the right table, like this:
1 Tim 1 Tim
2 Marta NULL NULL
A right outer join, like this:
SELECT *
FROM `t1`
RIGHT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`;
...would get us all the records from the right table regardless of whether or not they have a match in the left table, like this:
1 Tim 1 Tim
NULL NULL 3 Katarina
A full outer join would give us all records from both tables, whether or not they have a match in the other table, with NULLs on both sides where there is no match. The result would look like this:
1 Tim 1 Tim
2 Marta NULL NULL
NULL NULL 3 Katarina
However, as Pablo Santa Cruz pointed out, MySQL doesn't support this. We can emulate it by doing a UNION of a left join and a right join, like this:
SELECT *
FROM `t1`
LEFT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`
UNION
SELECT *
FROM `t1`
RIGHT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`;
You can think of a UNION
as meaning "run both of these queries, then stack the results on top of each other"; some of the rows will come from the first query and some from the second.
It should be noted that a UNION
in MySQL will eliminate exact duplicates: Tim would appear in both of the queries here, but the result of the UNION
only lists him once. My database guru colleague feels that this behavior should not be relied upon. So to be more explicit about it, we could add a WHERE
clause to the second query:
SELECT *
FROM `t1`
LEFT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`
UNION
SELECT *
FROM `t1`
RIGHT OUTER JOIN `t2` ON `t1`.`id` = `t2`.`id`
WHERE `t1`.`id` IS NULL;
On the other hand, if you wanted to see duplicates for some reason, you could use UNION ALL
.
new Buffer(number) // Old
Buffer.alloc(number) // New
new Buffer(string) // Old
Buffer.from(string) // New
new Buffer(string, encoding) // Old
Buffer.from(string, encoding) // New
new Buffer(...arguments) // Old
Buffer.from(...arguments) // New
Note that Buffer.alloc() is also faster on the current Node.js versions than new Buffer(size).fill(0), which is what you would otherwise need to ensure zero-filling.
The answer depends on what you mean by "close app". In android's terms its either about an "activity", or a group of activities in a temporal/ancestral order called "task".
End activity: just call finish()
End task:
This will end the entire "task"
Go to redis-cli and use below command
info keyspace
It may help someone
For JavaScript arrays, you use Both push() and concat() function.
var array = [1, 2, 3];
array.push(4, 5); //use push for appending a single array.
var array1 = [1, 2, 3];
var array2 = [4, 5, 6];
var array3 = array1.concat(array2); //It is better use concat for appending more then one array.
Usually when you want to check if a file exists, it's because you want to create that file if it doesn't. Graeme Perrow's answer is good if you don't want to create that file, but it's vulnerable to a race condition if you do: another process could create the file in between you checking if it exists, and you actually opening it to write to it. (Don't laugh... this could have bad security implications if the file created was a symlink!)
If you want to check for existence and create the file if it doesn't exist, atomically so that there are no race conditions, then use this:
#include <fcntl.h>
#include <errno.h>
fd = open(pathname, O_CREAT | O_WRONLY | O_EXCL, S_IRUSR | S_IWUSR);
if (fd < 0) {
/* failure */
if (errno == EEXIST) {
/* the file already existed */
...
}
} else {
/* now you can use the file */
}
crypto now supports base64 (reference):
cipher.final('base64')
So you could simply do:
var cipher = crypto.createCipheriv('des-ede3-cbc', encryption_key, iv);
var ciph = cipher.update(plaintext, 'utf8', 'base64');
ciph += cipher.final('base64');
var decipher = crypto.createDecipheriv('des-ede3-cbc', encryption_key, iv);
var txt = decipher.update(ciph, 'base64', 'utf8');
txt += decipher.final('utf8');
First I would check if your MusicKarma project has Microsoft.Net.Compilers in its packages.config file. If not then you could remove everything to do with that NuGet package from your MusicKarma.csproj.
If you are using the Microsoft.Net.Compilers NuGet package then my guess is that the path is incorrect. Looking at the directory name in the error message I would guess that the MusicKarma solution file (.sln) is in the same directory as the MusicKarma.csproj. If so then the packages directory is probably wrong since by default the packages directory would be inside the solution directory. So I am assuming that your packages directory is:
C:\Users\Bryan\Documents\Visual Studio 2015\Projects\MusicKarma\packages
Whilst your MusicKarma.csproj file is looking for the props file in:
C:\Users\Bryan\Documents\Visual Studio 2015\Projects\packages\Microsoft.Net.Compilers.1.1.1\build
So if that is the case then you can fix the problem by editing the path in your MusicKarma.csproj file or by reinstalling the NuGet package.
Try this to validate HTTP URLs (uriName
is the URI you want to test):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& uriResult.Scheme == Uri.UriSchemeHttp;
Or, if you want to accept both HTTP and HTTPS URLs as valid (per J0e3gan's comment):
Uri uriResult;
bool result = Uri.TryCreate(uriName, UriKind.Absolute, out uriResult)
&& (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
grep -v
is your friend:
grep --help | grep invert
-v, --invert-match select non-matching lines
Also check out the related -L
(the complement of -l
).
-L, --files-without-match only print FILE names containing no match
We have the following string which is a valid JSON ...
Clearly the JSON parser disagrees!
However, the exception says that the error is at "line 1: column 9", and there is no "http" token near the beginning of the JSON. So I suspect that the parser is trying to parse something different than this string when the error occurs.
You need to find what JSON is actually being parsed. Run the application within a debugger, set a breakpoint on the relevant constructor for JsonParseException
... then find out what is in the ByteArrayInputStream
that it is attempting to parse.
*Make sure you update your linux box first
yum update
In case someone still has this problem, this is a valid solution:
centos-release : rpm -q centos-release
Centos 6.*
wget http://download.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
rpm -ivh epel-release-6-8.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm
rpm -Uvh remi-release-6*.rpm
Centos 5.*
wget http://ftp.jaist.ac.jp/pub/Linux/Fedora/epel/5/x86_64/epel-release-5-4.noarch.rpm
rpm -ivh epel-release-5-4.noarch.rpm
wget http://rpms.famillecollet.com/enterprise/remi-release-5.rpm
rpm -Uvh remi-release-5*.rpm
Then just do this to update:
yum --enablerepo=remi upgrade php-mbstring
Or this to install:
yum --enablerepo=remi install php-mbstring
You got some mistakes in your code.
function WordCount(str) {
var totalSoFar = 0;
for (var i = 0; i < str.length; i++) {
if (str[i] === " ") {
totalSoFar += 1;
}
}
return totalSoFar + 1; // you need to return something.
}
console.log(WordCount("Random String"));
There is another easy way using regular expressions:
(text.split(/\b/).length - 1) / 2
The exact value can differ about 1 word, but it also counts word borders without space, for example "word-word.word". And it doesn't count words that don't contain letters or numbers.
I only use MicrosoftAdvertising.Mobile and Microsoft.Advertising.Mobile.UI and I am served ads. The SDK should only add the DLLs not reference itself.
Note: You need to explicitly set width and height Make sure the phone dialer, and web browser capabilities are enabled
Followup note: Make sure that after you've removed the SDK DLL, that the xmlns references are not still pointing to it. The best route to take here is
Here is the xmlns reference:
xmlns:AdNamepace="clr-namespace:Microsoft.Advertising.Mobile.UI;assembly=Microsoft.Advertising.Mobile.UI"
Then the ad itself:
<AdNamespace:AdControl x:Name="myAd" Height="80" Width="480" AdUnitId="yourAdUnitIdHere" ApplicationId="yourIdHere"/>
Strict equality operator:-
We can check null by ===
if ( value === null ){
}
Just by using if
if( value ) {
}
will evaluate to true if value is not:
If you need to run a shell command on multiple files, this did the trick for me.
import os
import subprocess
# Define a function for running commands and capturing stdout line by line
# (Modified from Vartec's solution because it wasn't printing all lines)
def runProcess(exe):
p = subprocess.Popen(exe, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
return iter(p.stdout.readline, b'')
# Get all filenames in working directory
for filename in os.listdir('./'):
# This command will be run on each file
cmd = 'nm ' + filename
# Run the command and capture the output line by line.
for line in runProcess(cmd.split()):
# Eliminate leading and trailing whitespace
line.strip()
# Split the output
output = line.split()
# Filter the output and print relevant lines
if len(output) > 2:
if ((output[2] == 'set_program_name')):
print filename
print line
Edit: Just saw Max Persson's solution with J.F. Sebastian's suggestion. Went ahead and incorporated that.
You can use the formula INDIRECT()
.
This basically takes a string and treats it as a reference. In your case, you would use:
=INDIRECT("'"&A5&"'!G7")
The double quotes are to show that what's inside are strings, and only A5
here is a reference.
There is another way which doesn't rely on defining functions (because sometimes that's less readable for small code snippets), doesn't use an extra outer while loop (which might need special appreciation in the comments to even be understandable on first sight), doesn't use goto (...) and most importantly let's you keep your indentation level for the outer if so you don't have to start nesting stuff.
if some_condition:
...
if condition_a:
# do something
exit_if=True # and then exit the outer if block
if some condition and not exit_if: # if and only if exit_if wasn't set we want to execute the following code
# keep doing something
if condition_b:
# do something
exit_if=True # and then exit the outer if block
if some condition and not exit_if:
# keep doing something
Yes, that also needs a second look for readability, however, if the snippets of code are small this doesn't require to track any while loops that will never repeat and after understanding what the intermediate ifs are for, it's easily readable, all in one place and with the same indentation.
And it should be pretty efficient.
Your table will need to be created with a unique ID field that will ideally have the AUTO_INCREMENT attribute. example:
CREATE TABLE Persons
(
P_Id int NOT NULL AUTO_INCREMENT,
LastName varchar(255) NOT NULL,
FirstName varchar(255),
PRIMARY KEY (P_Id)
)
Then you can access the 3rd record in this table with:
SELECT * FROM Persons WHERE P_Id = 3
You want reorder()
. Here is an example with dummy data
set.seed(42)
df <- data.frame(Category = sample(LETTERS), Count = rpois(26, 6))
require("ggplot2")
p1 <- ggplot(df, aes(x = Category, y = Count)) +
geom_bar(stat = "identity")
p2 <- ggplot(df, aes(x = reorder(Category, -Count), y = Count)) +
geom_bar(stat = "identity")
require("gridExtra")
grid.arrange(arrangeGrob(p1, p2))
Giving:
Use reorder(Category, Count)
to have Category
ordered from low-high.
You should use "merge a range of revision".
To merge changes from the trunk to a branch, inside the branch working copy choose "merge range of revisions" and enter the trunk URL and the start and end revisions to merge.
The same in the opposite way to merge a branch in the trunk.
About the --reintegrate flag, check the manual here: http://tortoisesvn.net/docs/release/TortoiseSVN_en/tsvn-dug-merge.html#tsvn-dug-merge-reintegrate
unfortunately none of the above worked. I finally could do it using the following stuffs: This solution works 100% (adapt it to your need)
.g-recaptcha-wrapper {_x000D_
position: relative;_x000D_
border: 1px solid #ededed;_x000D_
background: #f9f9f9;_x000D_
border-radius: 4px;_x000D_
padding: 0;_x000D_
#topHider {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
height: 2px !important;_x000D_
width: 100%;_x000D_
background-color: #f9f9f9;_x000D_
}_x000D_
#rightHider {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 295px;_x000D_
height: 100% !important;_x000D_
width: 15px;_x000D_
background-color: #f9f9f9;_x000D_
}_x000D_
#leftHider {_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
height: 100% !important;_x000D_
width: 2px;_x000D_
background-color: #f9f9f9;_x000D_
}_x000D_
#bottomHider {_x000D_
position: absolute;_x000D_
bottom: 1px;_x000D_
left: 0;_x000D_
height: 2px !important;_x000D_
width: 100%;_x000D_
background-color: #f9f9f9;_x000D_
}_x000D_
}
_x000D_
<div class="g-recaptcha-wrapper">_x000D_
<re-captcha #captchaRef="reCaptcha" (resolved)="onCaptchaResolved($event)" siteKey="{{captchaSiteKey}}"></re-captcha>_x000D_
<div id="topHider"></div>_x000D_
<div id="rightHider"></div>_x000D_
<div id="bottomHider"></div>_x000D_
<div id="leftHider"></div>_x000D_
</div>
_x000D_
Something simply like this will work I guess if it is bash shell.
read -sp "db_password:" password | docker run -itd --name <container_name> --build-arg mysql_db_password=$db_password alpine /bin/bash
Simply read it silently and pass as argument in Docker image. You need to accept the variable as ARG in Dockerfile.
You do not need the latex2exp
package to do what you wanted to do. The following code would do the trick.
ggplot(smr, aes(Fuel.Rate, Eng.Speed.Ave., color=Eng.Speed.Max.)) +
geom_point() +
labs(title=expression("Fuel Efficiency"~(alpha*Omega)),
color=expression(alpha*Omega), x=expression(Delta~price))
Also, some comments (unanswered as of this point) asked about putting an asterisk (*) after a Greek letter. expression(alpha~"*")
works, so I suggest giving it a try.
More comments asked about getting ? Price
and I find the most straightforward way to achieve that is expression(Delta~price))
. If you need to add something before the Greek letter, you can also do this:
expression(Indicative~Delta~price)
which gets you:
I used your own pivot as a nested query and came to this result:
SELECT
[sub].[chardate],
SUM(ISNULL([Australia], 0)) AS [Transactions Australia],
SUM(CASE WHEN [Australia] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Australia],
SUM(ISNULL([Austria], 0)) AS [Transactions Austria],
SUM(CASE WHEN [Austria] IS NOT NULL THEN [TotalAmount] ELSE 0 END) AS [Amount Austria]
FROM
(
select *
from mytransactions
pivot (sum (totalcount) for country in ([Australia], [Austria])) as pvt
) AS [sub]
GROUP BY
[sub].[chardate],
[sub].[numericmonth]
ORDER BY
[sub].[numericmonth] ASC
Iterating over a dictionary object itself actually gives you an iterator over its keys. Python is trying to unpack keys, which you get from m.type + m.purity
into (m, k)
.
My crystal ball says m.type
and m.purity
are both strings, so your keys are also strings. Strings are iterable, so they can be unpacked; but iterating over the string gives you an iterator over its characters. So whenever m.type + m.purity
is more than two characters long, you have too many values to unpack. (And whenever it's shorter, you have too few values to unpack.)
To fix this, you can iterate explicitly over the items
of the dict, which are the (key, value) pairs that you seem to be expecting. But if you only want the values, then just use the values.
(In 2.x, itervalues
, iterkeys
, and iteritems
are typically a better idea; the non-iter
versions create a new list object containing the values/keys/items. For large dictionaries and trivial tasks within the iteration, this can be a lot slower than the iter
versions which just set up an iterator.)
system("COLOR 0A");
'
where 0A is a combination of background and font color 0
If you don't wish to compile bootstrap, copy the following and insert it in your custom css file. It's not recommended to change the original bootstrap css file. Also, you won't be able to modify the bootstrap original css if you are loading it from a cdn.
Paste this in your custom css file:
@media (min-width:992px)
{
.container{width:960px}
}
@media (min-width:1200px)
{
.container{width:960px}
}
I am here setting my container to 960px for anything that can accommodate it, and keeping the rest media sizes to default values. You can set it to 940px for this problem.
Always use
//Super Fast
$('#my_id').find('.my_class');
instead of
// Fast:
$('#my_id .my_class');
Have look at JQuery Performance Rules.
Also at Jquery Doc
Git reset has 5 main modes: soft, mixed, merged, hard, keep. The difference between them is to change or not change head, stage (index), working directory.
Git reset --hard will change head, index and working directory.
Git reset --soft will change head only. No change to index, working directory.
So in other words if you want to undo your commit, --soft should be good enough. But after that you still have the changes from bad commit in your index and working directory. You can modify the files, fix them, add them to index and commit again.
With the --hard, you completely get a clean slate in your project. As if there hasn't been any change from the last commit. If you are sure this is what you want then move forward. But once you do this, you'll lose your last commit completely. (Note: there are still ways to recover the lost commit).
if you are using windows try to pass encoding='latin1', encoding='iso-8859-1' or encoding='cp1252' example:
csv_data = pd.read_csv(csvpath,encoding='iso-8859-1')
print(print(soup.encode('iso-8859-1')))
You have to do this for each File:
public static void deleteFolder(File folder) {
File[] files = folder.listFiles();
if(files!=null) { //some JVMs return null for empty dirs
for(File f: files) {
if(f.isDirectory()) {
deleteFolder(f);
} else {
f.delete();
}
}
}
folder.delete();
}
Then call
deleteFolder(outputFolder);
Rendering text to a texture is simpler than what the Sprite Text demo make it looks like, the basic idea is to use the Canvas class to render to a Bitmap and then pass the Bitmap to an OpenGL texture:
// Create an empty, mutable bitmap
Bitmap bitmap = Bitmap.createBitmap(256, 256, Bitmap.Config.ARGB_4444);
// get a canvas to paint over the bitmap
Canvas canvas = new Canvas(bitmap);
bitmap.eraseColor(0);
// get a background image from resources
// note the image format must match the bitmap format
Drawable background = context.getResources().getDrawable(R.drawable.background);
background.setBounds(0, 0, 256, 256);
background.draw(canvas); // draw the background to our bitmap
// Draw the text
Paint textPaint = new Paint();
textPaint.setTextSize(32);
textPaint.setAntiAlias(true);
textPaint.setARGB(0xff, 0x00, 0x00, 0x00);
// draw the text centered
canvas.drawText("Hello World", 16,112, textPaint);
//Generate one texture pointer...
gl.glGenTextures(1, textures, 0);
//...and bind it to our array
gl.glBindTexture(GL10.GL_TEXTURE_2D, textures[0]);
//Create Nearest Filtered Texture
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_NEAREST);
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR);
//Different possible texture parameters, e.g. GL10.GL_CLAMP_TO_EDGE
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_S, GL10.GL_REPEAT);
gl.glTexParameterf(GL10.GL_TEXTURE_2D, GL10.GL_TEXTURE_WRAP_T, GL10.GL_REPEAT);
//Use the Android GLUtils to specify a two-dimensional texture image from our bitmap
GLUtils.texImage2D(GL10.GL_TEXTURE_2D, 0, bitmap, 0);
//Clean up
bitmap.recycle();
Running python -v
from the command line should tell you what is being imported and from where. This works for me on Windows and Mac OS X.
C:\>python -v
# installing zipimport hook
import zipimport # builtin
# installed zipimport hook
# C:\Python24\lib\site.pyc has bad mtime
import site # from C:\Python24\lib\site.py
# wrote C:\Python24\lib\site.pyc
# C:\Python24\lib\os.pyc has bad mtime
import os # from C:\Python24\lib\os.py
# wrote C:\Python24\lib\os.pyc
import nt # builtin
# C:\Python24\lib\ntpath.pyc has bad mtime
...
I'm not sure what those bad mtime's are on my install!
As the file handlers points to i-nodes (which are stored independently from file names) on Linux/Unix systems You can rename the default nohup.out
to any other filename any time after starting nohup something&
. So also one could do the following:
$ nohup something&
$ mv nohup.out nohup2.out
$ nohup something2&
Now something
adds lines to nohup2.out
and something2
to nohup.out
.
150MB is the constraint for over-the-air downloads via the cellular network. Anything above that and users will be suggested Wi-Fi or iTunes sync to actually get your app.
This will not prevent a purchase though, at point of sale.
Equivalent memory allocation for char a[10][20]
would be as follows.
char **a;
a=(char **) malloc(10*sizeof(char *));
for(i=0;i<10;i++)
a[i]=(char *) malloc(20*sizeof(char));
I hope this looks simple to understand.
Let me share the simple way to enable the remote debugging mode in tomcat7 with eclipse (Windows).
Step 1: open bin/startup.bat file
Step 2: add the below lines for debugging with JDPA option (it should starting line of the file )
set JPDA_ADDRESS=8000
set JPDA_TRANSPORT=dt_socket
Step 3: in the same file .. go to end of the file modify this line -
call "%EXECUTABLE%" jpda start %CMD_LINE_ARGS%
instead of line
call "%EXECUTABLE%" start %CMD_LINE_ARGS%
step 4: then just run bin>startup.bat (so now your tomcat server ran in remote mode with port 8000).
step 5: after that lets connect your source project by eclipse IDE with remote client.
step6: In the Eclipse IDE go to "debug Configuration"
step7:click "remote java application" and on that click "New"
step8. in the "connect" tab set the parameter value
project= your source project
connection Type: standard (socket attached)
host: localhost
port:8000
step9: click apply and debug.
so finally your eclipse remote client is connected with the running tomcat server (debug mode).
Hope this approach might be help you.
Regards..
What about this:
select{
width: 150px;
height: 30px;
padding: 5px;
color: green;
}
select option { color: black; }
select option:first-child{
color: green;
}
_x000D_
<select>
<option>one</option>
<option>two</option>
</select>
_x000D_
$data = array('foo'=>'bar',
'baz'=>'boom',
'cow'=>'milk',
'php'=>'hypertext processor');
$queryString = http_build_query($data);
//$queryString = foo=bar&baz=boom&cow=milk&php=hypertext+processor
echo 'http://domain.com?'.$queryString;
//output: http://domain.com?foo=bar&baz=boom&cow=milk&php=hypertext+processor
AskTom is probably the single most helpful resource on best practices on Oracle DBs. (I usually just type "asktom" as the first word of a google query on a particular topic)
I don't think it's really appropriate to speak of design patterns with relational databases. Relational databases are already the application of a "design pattern" to a problem (the problem being "how to represent, store and work with data while maintaining its integrity", and the design being the relational model). Other approches (generally considered obsolete) are the Navigational and Hierarchical models (and I'm nure many others exist).
Having said that, you might consider "Data Warehousing" as a somewhat separate "pattern" or approach in database design. In particular, you might be interested in reading about the Star schema.
A free windows app that does that
http://www.addictivetips.com/windows-tips/csv-splitter-for-windows/
For those who still have problems after attempting the suggestions above: I solved the issue by updating the maven project.
You can add multiple classes to a single DOM element, e.g.
<div class="firstClass secondClass thirdclass fourthclass"></div>
Rules given in later classes (or which are more specific) override. So the fourthclass
in that example kind of prevails.
Inheritance is not part of the CSS standard.
If you only want to read the first 999,999 (non-header) rows:
read_csv(..., nrows=999999)
If you only want to read rows 1,000,000 ... 1,999,999
read_csv(..., skiprows=1000000, nrows=999999)
nrows : int, default None Number of rows of file to read. Useful for reading pieces of large files*
skiprows : list-like or integer Row numbers to skip (0-indexed) or number of rows to skip (int) at the start of the file
and for large files, you'll probably also want to use chunksize:
chunksize : int, default None Return TextFileReader object for iteration
The problem is that they're all the same exact list in memory. When you use the [x]*n
syntax, what you get is a list of n
many x
objects, but they're all references to the same object. They're not distinct instances, rather, just n
references to the same instance.
To make a list of 3 different lists, do this:
x = [[] for i in range(3)]
This gives you 3 separate instances of []
, which is what you want
[[]]*n
is similar to
l = []
x = []
for i in range(n):
x.append(l)
While [[] for i in range(3)]
is similar to:
x = []
for i in range(n):
x.append([]) # appending a new list!
In [20]: x = [[]] * 4
In [21]: [id(i) for i in x]
Out[21]: [164363948, 164363948, 164363948, 164363948] # same id()'s for each list,i.e same object
In [22]: x=[[] for i in range(4)]
In [23]: [id(i) for i in x]
Out[23]: [164382060, 164364140, 164363628, 164381292] #different id(), i.e unique objects this time
Use .rsplit()
or .rpartition()
instead:
s.rsplit(',', 1)
s.rpartition(',')
str.rsplit()
lets you specify how many times to split, while str.rpartition()
only splits once but always returns a fixed number of elements (prefix, delimiter & postfix) and is faster for the single split case.
Demo:
>>> s = "a,b,c,d"
>>> s.rsplit(',', 1)
['a,b,c', 'd']
>>> s.rsplit(',', 2)
['a,b', 'c', 'd']
>>> s.rpartition(',')
('a,b,c', ',', 'd')
Both methods start splitting from the right-hand-side of the string; by giving str.rsplit()
a maximum as the second argument, you get to split just the right-hand-most occurrences.
In Python instead of language enforcing something, people use naming conventions e.g __method
for private methods and using _method
for protected methods.
So in same manner you can simply declare the constant as all caps e.g.
MY_CONSTANT = "one"
If you want that this constant never changes, you can hook into attribute access and do tricks, but a simpler approach is to declare a function
def MY_CONSTANT():
return "one"
Only problem is everywhere you will have to do MY_CONSTANT(), but again MY_CONSTANT = "one"
is the correct way in python(usually).
You can also use namedtuple to create constants:
>>> from collections import namedtuple
>>> Constants = namedtuple('Constants', ['pi', 'e'])
>>> constants = Constants(3.14, 2.718)
>>> constants.pi
3.14
>>> constants.pi = 3
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: can't set attribute
I found a tricky way, just for brainstorm, see the code:
df['a'] = df['A'] # create a shadow column for MultiIndexing
df.sort_values('A', inplace=True)
df.set_index(["A","a"], inplace=True)
print(df)
the output:
B
A a
one one 0
one 1
one 5
three three 3
three 4
two two 2
The pros is so easy to print, as it returns a dataframe, instead of Groupby Object. And the output looks nice. While the con is that it create a series of redundant data.
You can make this bit more cleaner by using:
$http.get(url)
.then(function (response) {
console.log('get',response)
})
.catch(function (data) {
// Handle error here
});
Similar to @this.lau_ answer, different approach.
This might be a very late reply but it is working for us. We are using the same gallery provided by Android, just that, we have adjusted the left margin such a way that the screens left end is considered as Gallery's center. That really worked well for us.
Use java.util.Calendar
if you have extensive date related processing.
Date has before()
, after()
methods. you could use them as well.
according to the code of the windowManager (link here), this occurs when the view you are trying to update (which probably belongs to a dialog, but not necessary) is no longer attached to the real root of the windows.
as others have suggested, you should check the status of the activity before performing special operations on your dialogs.
here's the relavant code, which is the cause to the problem (copied from Android source code) :
public void updateViewLayout(View view, ViewGroup.LayoutParams params) {
if (!(params instanceof WindowManager.LayoutParams)) {
throw new IllegalArgumentException("Params must be WindowManager.LayoutParams");
}
final WindowManager.LayoutParams wparams
= (WindowManager.LayoutParams)params;
view.setLayoutParams(wparams);
synchronized (this) {
int index = findViewLocked(view, true);
ViewRootImpl root = mRoots[index];
mParams[index] = wparams;
root.setLayoutParams(wparams, false);
}
}
private int findViewLocked(View view, boolean required) {
synchronized (this) {
final int count = mViews != null ? mViews.length : 0;
for (int i=0; i<count; i++) {
if (mViews[i] == view) {
return i;
}
}
if (required) {
throw new IllegalArgumentException(
"View not attached to window manager");
}
return -1;
}
}
I'd do it in two statements: DROP DATABASE ???
and then CREATE DATABASE ???
The answer is no. Bash doesn't allocate any output to any parameter or any block on its memory. Also, you are only allowed to access Bash by its allowed interface operations. Bash's private data is not accessible unless you hack it.
Use the mouseover()
function to trigger the click. In this way the previous click event will not harm. User can use both hover and click/touch. It will be mobile friendly.
$(".dropdown-toggle").mouseover(function(){
$(this).trigger('click');
})
My advise is: try not to rely on dependencies when you can easily do it with few lines of codes
Here's what you're trying to achieve in 14 lines of code:
fs.isDir = function(dpath) {
try {
return fs.lstatSync(dpath).isDirectory();
} catch(e) {
return false;
}
};
fs.mkdirp = function(dirname) {
dirname = path.normalize(dirname).split(path.sep);
dirname.forEach((sdir,index)=>{
var pathInQuestion = dirname.slice(0,index+1).join(path.sep);
if((!fs.isDir(pathInQuestion)) && pathInQuestion) fs.mkdirSync(pathInQuestion);
});
};
Underscore-java library has static method U.formatXml(xmlstring). I am the maintainer of the project. Live example
import com.github.underscore.lodash.U;
import com.github.underscore.lodash.Xml;
public class MyClass {
public static void main(String[] args) {
System.out.println(U.formatXml("<a>\n <b></b>\n <b></b>\n</a>",
Xml.XmlStringBuilder.Step.COMPACT));
}
}
// output: <a><b></b><b></b></a>
Works fine, except this message:
Implicit conversion from data type varchar to timestamp is not allowed. Use the CONVERT function to run this query
So yes, TIMESTAMP
(RowVersion
) is NOT a DATE :)
To be honest, I fidddled around quite some time myself to find a way to convert it to a date.
Best way is to convert it to INT
and compare. That's what this type is meant to be.
If you want a date - just add a Datetime
column and live happily ever after :)
cheers mac
You're looking for Select
which can be used to transform\project the input sequence:
IEnumerable<string> strings = integers.Select(i => i.ToString());
Here are three statements for three different dates in the form with three type=date fields.
$inv_date
is the current date:
$inv_date = date("Y-m-d");
$inv_date_from
is the first day of the current month:
$inv_date_from = date("Y") . "-" . date("m") . "-" . "01";
$inv_date_to
is the last day of the month:
$inv_date_to = date("Y-m-t", strtotime(date("Y-m-t")));
I hope this helps :)
try to disable the rewrite module in ubuntu using sudo a2dismod rewrite
. This will perhaps stop your apache server to crash.
Check to see if you have previously disabled caching in Chrome when the developer console is open - the setting is under the console, settings icon > General tab: Disable cache (while DevTools is open)
Install Both of the below links
Note: (For Vista and Windows Server 2008 >>> Windows6.0 and For Windows 7 and Windows Server 2008 R2, >>> Windows6.1. )
Windows Identity Foundation SDK
Note: Download the 3.5 version for Visual Studio 2008 and .NET 3.5, the 4.0 version for Visual Studio 2010 and .NET 4.0.
Then Only, You will able to get the assembly called Microsoft.IdentityModel
I used a similar way to solve this problem using the animescm sugestion, indeed we can obtain the specific cells values from a group of selected cells using an auxiliar list:
private void dataGridCase_SelectionChanged(object sender, SelectedCellsChangedEventArgs e)
{
foreach (var item in e.AddedCells)
{
var col = item.Column as DataGridColumn;
var fc = col.GetCellContent(item.Item);
lstTxns.Items.Add((fc as TextBlock).Text);
}
}
Any class which extends Exception
class will be a user defined Checked exception class where as any class which extends RuntimeException
will be Unchecked exception class.
as mentioned in User defined exception are checked or unchecked exceptions
So, not throwing the checked exception(be it user-defined or built-in exception) gives compile time error.
Checked exception are the exceptions that are checked at compile time.
Unchecked exception are the exceptions that are not checked at compiled time
You'll need a script to loop through them. Git doesn't a provide a "push all." You could theoretically do a push in multiple threads, but a native method is not available.
Fetch is even more complicated, and I'd recommend doing that linearly.
I think your best answer is to have once machine that everybody does a push / pull to, if that's at all possible.
You could also change the repository name you wish to push to in the REPOHOME/.git/config file
(where REPOHOME is the path to your local clone of the repository).
You can try with
document.getElementsByClassName('special_class');
Good part of accepted answer, modified to use UriBuilder.Uri.ParseQueryString() instead of HttpUtility.ParseQueryString():
var builder = new UriBuilder("http://example.com");
var query = builder.Uri.ParseQueryString();
query["foo"] = "bar<>&-baz";
query["bar"] = "bazinga";
builder.Query = query.ToString();
string url = builder.ToString();
Arrays can hold pointers so when I want an array of objects I do that.
$a = array();
$o = new Whatever_Class();
$a[] = &$o;
print_r($a);
This will show that the object is referenced and accessible through the array.
Using INSERT INTO ... VALUES
syntax like in Daniel Vassallo's answer
there is one annoying limitation:
From MSDN
The maximum number of rows that can be constructed by inserting rows directly in the VALUES list is 1000
The easiest way to omit this limitation is to use derived table like:
INSERT INTO dbo.Mytable(ID, Name)
SELECT ID, Name
FROM (
VALUES (1, 'a'),
(2, 'b'),
--...
-- more than 1000 rows
)sub (ID, Name);
The ternary operator is just a shorthand for and if/else block. Your working code does not have an else condition, so is not suitable for this.
The following example will work:
echo empty($address['street2']) ? 'empty' : 'not empty';
I ran into this issue a while back. The ^M represents a Carriage Return, and searching on Ctrl-Q Ctrl-M
(This creates a literal ^M) will allow you get a handle on this character within Emacs. I did something along these lines:
M-x replace-string [ENTER] C-q C-m [ENTER] \n [ENTER]
Solved my own problem. This line:
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));
needs to be:
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), "UTF-8"));
or since Java 7:
BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), StandardCharsets.UTF_8));
1) You can wrap your text as CDATA like this:
<mytag>
<![CDATA[Your text goes here. Btw: 5<6 and 6>5]]>
</mytag>
see http://www.w3schools.com/xml/xml_cdata.asp
2) As already someone said: Escape those chars. E.g. like so:
5<6 and 6>5
e.g. git cherry-pick 3a7322ac^..7d7c123c
Assuming you are on branchA
where you want to pick commits (start & end commit SHA for the range is given and left commit SHA is older) from branchB
. The entire range of commits (both inclusive) will be cherry picked in branchA
.
The examples given in the official documentation are quite useful.
First, to describe dynamic cast in C terms, we have to represent classes in C. Classes with virtual functions use a "VTABLE" of pointers to the virtual functions. Comments are C++. Feel free to reformat and fix compile errors...
// class A { public: int data; virtual int GetData(){return data;} };
typedef struct A { void**vtable; int data;} A;
int AGetData(A*this){ return this->data; }
void * Avtable[] = { (void*)AGetData };
A * newA() { A*res = malloc(sizeof(A)); res->vtable = Avtable; return res; }
// class B : public class A { public: int moredata; virtual int GetData(){return data+1;} }
typedef struct B { void**vtable; int data; int moredata; } B;
int BGetData(B*this){ return this->data + 1; }
void * Bvtable[] = { (void*)BGetData };
B * newB() { B*res = malloc(sizeof(B)); res->vtable = Bvtable; return res; }
// int temp = ptr->GetData();
int temp = ((int(*)())ptr->vtable[0])();
Then a dynamic cast is something like:
// A * ptr = new B();
A * ptr = (A*) newB();
// B * aB = dynamic_cast<B>(ptr);
B * aB = ( ptr->vtable == Bvtable ? (B*) aB : (B*) 0 );
The second form (creating an HTTP server yourself, instead of having Express create one for you) is useful if you want to reuse the HTTP server, for example to run socket.io
within the same HTTP server instance:
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);
...
server.listen(1234);
However, app.listen()
also returns the HTTP server instance, so with a bit of rewriting you can achieve something similar without creating an HTTP server yourself:
var express = require('express');
var app = express();
// app.use/routes/etc...
var server = app.listen(3033);
var io = require('socket.io').listen(server);
io.sockets.on('connection', function (socket) {
...
});
Take a look at
Window ? Show View ? Problems
or
Window ? Show View ? Error Log
Try this:
let json=yourJson
if(json.hasOwnProperty(yourKey)){
value=json[yourKey]
}
Use $push
to update document and insert new value inside an array.
find:
db.getCollection('noti').find({})
result for find:
{
"_id" : ObjectId("5bc061f05a4c0511a9252e88"),
"count" : 1.0,
"color" : "green",
"icon" : "circle",
"graph" : [
{
"date" : ISODate("2018-10-24T08:55:13.331Z"),
"count" : 2.0
}
],
"name" : "online visitor",
"read" : false,
"date" : ISODate("2018-10-12T08:57:20.853Z"),
"__v" : 0.0
}
update:
db.getCollection('noti').findOneAndUpdate(
{ _id: ObjectId("5bc061f05a4c0511a9252e88") },
{ $push: {
graph: {
"date" : ISODate("2018-10-24T08:55:13.331Z"),
"count" : 3.0
}
}
})
result for update:
{
"_id" : ObjectId("5bc061f05a4c0511a9252e88"),
"count" : 1.0,
"color" : "green",
"icon" : "circle",
"graph" : [
{
"date" : ISODate("2018-10-24T08:55:13.331Z"),
"count" : 2.0
},
{
"date" : ISODate("2018-10-24T08:55:13.331Z"),
"count" : 3.0
}
],
"name" : "online visitor",
"read" : false,
"date" : ISODate("2018-10-12T08:57:20.853Z"),
"__v" : 0.0
}
Try this
public int GetFirstDigit(int number) {
if ( number < 10 ) {
return number;
}
return GetFirstDigit ( (number - (number % 10)) / 10);
}
EDIT
Several people have requested the loop version
public static int GetFirstDigitLoop(int number)
{
while (number >= 10)
{
number = (number - (number % 10)) / 10;
}
return number;
}
This was just happening to me, but none of the suggestions above worked. I changed directories ("cd ~/tmp") and suddenly the command
ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"
worked for me. Prior to changing directories I had been in a directory that is a Git repository. Perhaps that was interfering with the ruby and Git commands in the Brew install script.
select * from xyz where (1=(CASE WHEN @AnnualFeeType = 'All' THEN 1 ELSE 0 END) OR AnnualFeeType = @AnnualFeeType)
I am using Ansible 1.9.4 and this is what worked for me -
- local_action: copy content="{{ foo_result.stdout }}" dest="/path/to/destination/file"
<div class="container">
<div class="box">
<img src="http://lorempixel.com/1600/1200/" alt="">
</div>
</div>
.container {
display: flex;
flex-direction: row;
justify-content: center;
align-items: stretch;
width: 100%;
height: 100%;
border-radius: 4px;
background-color: hsl(0, 0%, 96%);
}
.box {
border-radius: 4px;
display: flex;
}
.box img {
width: 100%;
object-fit: contain;
border-radius: 4px;
}