A very simple example:
SET a=Hello
SET b=World
SET c=%a% %b%!
echo %c%
The result should be:
Hello World!
You can also use fcntl to change the file flags in-fly.
fl = fcntl.fcntl(fd.fileno(), fcntl.F_GETFL)
fl |= os.O_SYNC # or os.O_DSYNC (if you don't care the file timestamp updates)
fcntl.fcntl(fd.fileno(), fcntl.F_SETFL, fl)
I also had this problem, my solution was to have an element above the element i dont want a hover effect on:
.no-hover {_x000D_
position: relative;_x000D_
opacity: 0.65 !important;_x000D_
display: inline-block;_x000D_
}_x000D_
_x000D_
.no-hover::before {_x000D_
content: '';_x000D_
background-color: transparent;_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
z-index: 60;_x000D_
}
_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />_x000D_
_x000D_
<button class="btn btn-primary">hover</button>_x000D_
<span class="no-hover">_x000D_
<button class="btn btn-primary ">no hover</button>_x000D_
</span>
_x000D_
that’s just wrong: is not a wrapper. The element denotes a semantic section of your content to help construct a document outline. It should contain a heading. If you’re looking for a page wrapper element (for any flavour of HTML or XHTML), consider applying styles directly to the element as described by Kroc Camen. If you still need an additional element for styling, use a . As Dr Mike explains, div isn’t dead, and if there’s nothing else more appropriate, it’s probably where you really want to apply your CSS.
you can check this : http://html5doctor.com/avoiding-common-html5-mistakes/
For those of us struggling through life in IIS: use the following PowerShell code to fix this issue based on the official Angular 2 docs (that someone posted in this thread? http://blog.angular-university.io/angular2-router/)
Import-WebAdministration
# Grab the 404 handler and update it to redirect to index.html.
$redirect = Get-WebConfiguration -filter "/system.WebServer/httperrors/error[@statusCode='404']" -PSPath IIS:\Sites\LIS
$redirect.path = "/index.html"
$redirect.responseMode = 1
# shove the updated config back into IIS
Set-WebConfiguration -filter "/system.WebServer/httperrors/error[@statusCode='404']" -PSPath IIS:\Sites\LIS -value $redirect
This redirects the 404 to the /index.html file as per the suggestion in the Angular 2 docs (link above).
You could use MSI API to enumerate everything installed by Windows Installer but that won't list all the software available on a machine. Without knowing more about what you need I think the concept of "installed" is a little vague. There are many ways to deploy software to a system ranging from big complicated installers to ZIP files and everything in between.
You can do the following:
df =DataFrame({'a':[1,2,3,4],'b':[2,4,6,8]})
df['x']=df.a + df.b
df['y']=df.a - df.b
create column title whatever order you want in this way:
column_titles = ['x','y','a','b']
df.reindex(columns=column_titles)
This will give you desired output
Ran into this problem today when working with a set of web services, each in different projects, and a separate project containing integration tests for some of those services.
I've been using this setup for some time with EF5, without needing to include references to EF from the Integration Test Project.
Now, after upgrading to EF6, it seems I need to include a reference to EF6 in the integration test project too, even though it is not used there (pretty much as pointed out above by user3004275).
Indications you're facing the same problem:
The third point is what threw me off for a while, and I'm still not sure why this is required. Adding a ref to EF6 in my Integration Test project solved it in any case...
I you dont want to do it programmatically, you can manipulate to the Column width property, which is located inside the Columns property.Once you open the column edit property you can choose which column you want to edit, scroll down to layout section of the bound column properties and change the width.
There is another solution. The next code is bad (although I think pandas needs this feature):
import pandas as pd
# empty dataframe
a = pd.DataFrame()
a.loc[0] = {'first': 111, 'second': 222}
But the next code runs fine:
import pandas as pd
# empty dataframe
a = pd.DataFrame()
a = a.append(pd.Series({'first': 111, 'second': 222}, name=0))
If anyone faces the following error message when they use adb devices
no permissions (verify udev rules); see [http://developer.android.com/tools/device.html]
Execute the following
sudo -s
adb kill-server
adb start-server
That fixed the issue for me on a custom build android device
Your question can be conveniently divided into several parts:
Does a VPN hide location? Yes, he is capable of this. This is not about GPS determining your location. If you try to change the region via VPN in an application that requires GPS access, nothing will work. However, sites define your region differently. They get an IP address and see what country or region it belongs to. If you can change your IP address, you can change your region. This is exactly what VPNs can do.
How to hide location on Android? There is nothing difficult in figuring out how to set up a VPN on Android, but a couple of nuances still need to be highlighted. Let's start with the fact that not all Android VPNs are created equal. For example, VeePN outperforms many other services in terms of efficiency in circumventing restrictions. It has 2500+ VPN servers and a powerful IP and DNS leak protection system.
You can easily change the location of your Android device by using a VPN. Follow these steps for any device model (Samsung, Sony, Huawei, etc.):
Download and install a trusted VPN.
Install the VPN on your Android device.
Open the application and connect to a server in a different country.
Your Android location will now be successfully changed!
Is it legal? Yes, changing your location on Android is legal. Likewise, you can change VPN settings in Microsoft Edge on your PC, and all this is within the law. VPN allows you to change your IP address, safeguarding your privacy and protecting your actual location from being exposed. However, VPN laws may vary from country to country. There are restrictions in some regions.
Brief summary: Yes, you can change your region on Android and a VPN is a necessary assistant for this. It's simple, safe and legal. Today, VPN is the best way to change the region and unblock sites with regional restrictions.
The null character is '\0'
, not '/0'
.
while (*(forward++) != '\0')
Use below command to kill all jobs running on yarn.
For accepted jobs use below command.
for x in $(yarn application -list -appStates ACCEPTED | awk 'NR > 2 { print $1 }'); do yarn application -kill $x; done
For running, jobs use the below command.
for x in $(yarn application -list -appStates RUNNING | awk 'NR > 2 { print $1 }'); do yarn application -kill $x; done
The legend titles can be labeled by specific aesthetic.
This can be achieved using the guides()
or labs()
functions from ggplot2
(more here and here). It allows you to add guide/legend properties using the aesthetic mapping.
Here's an example using the mtcars
data set and labs()
:
ggplot(mtcars, aes(x=mpg, y=disp, size=hp, col=as.factor(cyl), shape=as.factor(gear))) +
geom_point() +
labs(x="miles per gallon", y="displacement", size="horsepower",
col="# of cylinders", shape="# of gears")
Answering the OP's question using guides()
:
# transforming the data from wide to long
require(reshape2)
dfm <- melt(df, id="TY")
# creating a scatterplot
ggplot(data = dfm, aes(x=TY, y=value, color=variable)) +
geom_point(size=5) +
labs(title="Temperatures\n", x="TY [°C]", y="Txxx") +
scale_color_manual(labels = c("T999", "T888"), values = c("blue", "red")) +
theme_bw() +
guides(color=guide_legend("my title")) # add guide properties by aesthetic
Attach gdb to one of the httpd child processes and reload or continue working and wait for a crash and then look at the backtrace. Do something like this:
$ ps -ef|grep httpd
0 681 1 0 10:38pm ?? 0:00.45 /Applications/MAMP/Library/bin/httpd -k start
501 690 681 0 10:38pm ?? 0:00.02 /Applications/MAMP/Library/bin/httpd -k start
...
Now attach gdb to one of the child processes, in this case PID 690 (columns are UID, PID, PPID, ...)
$ sudo gdb
(gdb) attach 690
Attaching to process 690.
Reading symbols for shared libraries . done
Reading symbols for shared libraries ....................... done
0x9568ce29 in accept$NOCANCEL$UNIX2003 ()
(gdb) c
Continuing.
Wait for crash... then:
(gdb) backtrace
Or
(gdb) backtrace full
Should give you some clue what's going on. If you file a bug report you should include the backtrace.
If the crash is hard to reproduce it may be a good idea to configure Apache to only use one child processes for handling requests. The config is something like this:
StartServers 1
MinSpareServers 1
MaxSpareServers 1
The way to do this in 2019+ is to use DeviceOrientation
API. This works in most modern browsers on desktop and mobile.
window.addEventListener("deviceorientation", handleOrientation, true);
After registering your event listener (in this case, a JavaScript function called handleOrientation()), your listener function periodically gets called with updated orientation data.
The orientation event contains four values:
DeviceOrientationEvent.absolute
DeviceOrientationEvent.alpha
DeviceOrientationEvent.beta
DeviceOrientationEvent.gamma
The event handler function can look something like this:
function handleOrientation(event) { var absolute = event.absolute; var alpha = event.alpha; var beta = event.beta; var gamma = event.gamma; // Do stuff with the new orientation data }
You're almost there: it's NOW() - INTERVAL 1 DAY
It used to be generally recommended best practice1 to use pass by const ref for all types, except for builtin types (char
, int
, double
, etc.), for iterators and for function objects (lambdas, classes deriving from std::*_function
).
This was especially true before the existence of move semantics. The reason is simple: if you passed by value, a copy of the object had to be made and, except for very small objects, this is always more expensive than passing a reference.
With C++11, we have gained move semantics. In a nutshell, move semantics permit that, in some cases, an object can be passed “by value” without copying it. In particular, this is the case when the object that you are passing is an rvalue.
In itself, moving an object is still at least as expensive as passing by reference. However, in many cases a function will internally copy an object anyway — i.e. it will take ownership of the argument.2
In these situations we have the following (simplified) trade-off:
“Pass by value” still causes the object to be copied, unless the object is an rvalue. In the case of an rvalue, the object can be moved instead, so that the second case is suddenly no longer “copy, then move” but “move, then (potentially) move again”.
For large objects that implement proper move constructors (such as vectors, strings …), the second case is then vastly more efficient than the first. Therefore, it is recommended to use pass by value if the function takes ownership of the argument, and if the object type supports efficient moving.
A historical note:
In fact, any modern compiler should be able to figure out when passing by value is expensive, and implicitly convert the call to use a const ref if possible.
In theory. In practice, compilers can’t always change this without breaking the function’s binary interface. In some special cases (when the function is inlined) the copy will actually be elided if the compiler can figure out that the original object won’t be changed through the actions in the function.
But in general the compiler can’t determine this, and the advent of move semantics in C++ has made this optimisation much less relevant.
1 E.g. in Scott Meyers, Effective C++.
2 This is especially often true for object constructors, which may take arguments and store them internally to be part of the constructed object’s state.
Function imageMorph
will create a new img element therefore the id is removed.
Changed to
$("#wrapper > img")
You should use live() function for click event if you want you rocket lanch again.
Updated demo: http://jsfiddle.net/ynhat/QQRsW/4/
<script>
$(document).ready(function () {
$('select').attr("id", "newId"); //direct descendant of a
});
</script>
This could do for all purpose. Just add before your body closing tag and don't for get to add Jquery.min.js
In bash, we use
declare -A name_of_dictonary_variable
so that Bash understands it is a dictionary.
For e.g. you want to create sounds
dictionary then,
declare -A sounds
sounds[dog]="Bark"
sounds[wolf]="Howl"
where dog
and wolf
are "keys"
, and Bark
and Howl
are "values"
.
You can access all values using : echo ${sounds[@]}
OR echo ${sounds[*]}
You can access all keys only using: echo ${!sounds[@]}
And if you want any value for a particular key, you can use:
${sounds[dog]}
this will give you value (Bark
) for key (Dog
).
With python < 2.6 I ended up with
def isNaN(x):
return str(float(x)).lower() == 'nan'
This works for me with python 2.5.1 on a Solaris 5.9 box and with python 2.6.5 on Ubuntu 10
First, we must make a distinction between layers and tiers. Layers are the way to logically break code into components and tiers are the physical nodes to place the components on. This question explains it better: What's the difference between "Layers" and "Tiers"?
A two layer architecture is usually just a presentation layer and data store layer. These can be on 1 tier (1 machine) or 2 tiers (2 machines) to achieve better performance by distributing the work load.
A three layer architecture usually puts something between the presentation and data store layers such as a business logic layer or service layer. Again, you can put this into 1,2, or 3 tiers depending on how much money you have for hardware and how much load you expect.
Putting multiple machines in a tier will help with the robustness of the system by providing redundancy.
Below is a good example of a layered architecture:
(source: microsoft.com)
A good reference for all of this can be found here on MSDN: http://msdn.microsoft.com/en-us/library/ms978678.aspx
I wanted a more permanent and quicker way. Because I tend to forget to add extra lines before writing my actual Update/Insert queries.
I did it by checking SET IMPLICIT_TRANSACTIONS check-box from Options. To navigate to Options Select Tools>Options>Query Execution>SQL Server>ANSI in your Microsoft SQL Server Management Studio.
Just make sure to execute commit
or rollback
after you are done executing your queries. Otherwise, the table you would have run the query will be locked for others.
How big is your sample? Here is another option to test your data against any distribution using OpenTURNS library. In the example below, I generate a sample x of 1.000.000 numbers from a Uniform distribution and test it against a Normal distribution.
You can replace x by your data if you reshape it as x= [[x1], [x2], .., [xn]]
import openturns as ot
x = ot.Uniform().getSample(1000000)
g = ot.VisualTest.DrawQQplot(x, ot.Normal())
g
In my Jupyter Notebook, I see:
If you are writing a script, you can do it more properly
from openturns.viewer import View`
import matplotlib.pyplot as plt
View(g)
plt.show()
setting display:flex
for the text worked for me.
In my case, I recently updated from MVC 4 to MVC 5, which screws up the web.config pretty badly. This article helped tremendously.
The bottom line is that you need to check all your version number references in your web.config and Views/web.config to make sure that they are referencing the correct upgraded versions associated with MVC 5.
When you create your table, put your td with class = "suma"
$(function(){
//funcion suma todo
var sum = 0;
$('.suma').each(function(x,y){
sum += parseInt($(this).text());
})
$('#lblTotal').text(sum);
// funcion suma por check
$( "input:checkbox").change(function(){
if($(this).is(':checked')){
$(this).parent().parent().find('td:last').addClass('suma2');
}else{
$(this).parent().parent().find('td:last').removeClass('suma2');
}
suma2Total();
})
function suma2Total(){
var sum2 = 0;
$('.suma2').each(function(x,y){
sum2 += parseInt($(this).text());
})
$('#lblTotal2').text(sum2);
}
});
I am able to download it using apple's download website today. https://developer.apple.com/download/
I do not have a paid apple developer account. Before I was only able to see xcode 8.3.3 but somehow today xcode 9 beta also appeared.
It will delete a folder recursively
public static void folderdel(String path){
File f= new File(path);
if(f.exists()){
String[] list= f.list();
if(list.length==0){
if(f.delete()){
System.out.println("folder deleted");
return;
}
}
else {
for(int i=0; i<list.length ;i++){
File f1= new File(path+"\\"+list[i]);
if(f1.isFile()&& f1.exists()){
f1.delete();
}
if(f1.isDirectory()){
folderdel(""+f1);
}
}
folderdel(path);
}
}
}
Usually, I don't care about the order of the calls, only that they happened. In that case, I combine assert_any_call
with an assertion about call_count
.
>>> import mock
>>> m = mock.Mock()
>>> m(1)
<Mock name='mock()' id='37578160'>
>>> m(2)
<Mock name='mock()' id='37578160'>
>>> m(3)
<Mock name='mock()' id='37578160'>
>>> m.assert_any_call(1)
>>> m.assert_any_call(2)
>>> m.assert_any_call(3)
>>> assert 3 == m.call_count
>>> m.assert_any_call(4)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "[python path]\lib\site-packages\mock.py", line 891, in assert_any_call
'%s call not found' % expected_string
AssertionError: mock(4) call not found
I find doing it this way to be easier to read and understand than a large list of calls passed into a single method.
If you do care about order or you expect multiple identical calls, assert_has_calls
might be more appropriate.
Since I posted this answer, I've rethought my approach to testing in general. I think it's worth mentioning that if your test is getting this complicated, you may be testing inappropriately or have a design problem. Mocks are designed for testing inter-object communication in an object oriented design. If your design is not objected oriented (as in more procedural or functional), the mock may be totally inappropriate. You may also have too much going on inside the method, or you might be testing internal details that are best left unmocked. I developed the strategy mentioned in this method when my code was not very object oriented, and I believe I was also testing internal details that would have been best left unmocked.
I suggest using a directive on a link. Here is the fiddle.
But its not perfect yet. Watch out for the hashbangs ;)
Here is the javascript for directive:
angular.module('link', []).
directive('activeLink', ['$location', function(location) {
return {
restrict: 'A',
link: function(scope, element, attrs, controller) {
var clazz = attrs.activeLink;
var path = attrs.href;
path = path.substring(1); //hack because path does not return including hashbang
scope.location = location;
scope.$watch('location.path()', function(newPath) {
if (path === newPath) {
element.addClass(clazz);
} else {
element.removeClass(clazz);
}
});
}
};
}]);
and here is how it would be used in html:
<div ng-app="link">
<a href="#/one" active-link="active">One</a>
<a href="#/two" active-link="active">One</a>
<a href="#" active-link="active">home</a>
</div>
afterwards styling with css:
.active{ color:red; }
This sounds like a ClassLoader conflict. I'd bet you have the javax.persistence api 1.x on the classpath somewhere, whereas Spring is trying to access ValidationMode
, which was only introduced in JPA 2.0.
Since you use Maven, do mvn dependency:tree
, find the artifact:
<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0</version>
</dependency>
And remove it from your setup. (See Excluding Dependencies)
AFAIK there is no such general distribution for JPA 2, but you can use this Hibernate-specific version:
<dependency>
<groupId>org.hibernate.javax.persistence</groupId>
<artifactId>hibernate-jpa-2.0-api</artifactId>
<version>1.0.1.Final</version>
</dependency>
OK, since that doesn't work, you still seem to have some JPA-1 version in there somewhere. In a test method, add this code:
System.out.println(EntityManager.class.getProtectionDomain()
.getCodeSource()
.getLocation());
See where that points you and get rid of that artifact.
Ahh, now I finally see the problem. Get rid of this:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jpa</artifactId>
<version>2.0.8</version>
</dependency>
and replace it with
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>3.2.5.RELEASE</version>
</dependency>
On a different note, you should set all test libraries (spring-test, easymock etc.) to
<scope>test</scope>
This isn't easy, unless your regexp engine has special support for it. The easiest way would be to use a negative-match option, for example:
$var !~ /^foo$/
or die "too much foo";
If not, you have to do something evil:
$var =~ /^(($)|([^f].*)|(f[^o].*)|(fo[^o].*)|(foo.+))$/
or die "too much foo";
That one basically says "if it starts with non-f
, the rest can be anything; if it starts with f
, non-o
, the rest can be anything; otherwise, if it starts fo
, the next character had better not be another o
".
If you're using jQuery, you could use the format or number format plugins.
Here is a possible frustrating scenarios that produces this error:
If you are lunching a new instance from an AMI you created of another instance (say instance xyz), then the new instance will only accept the same key that instance A used. This is totally understandable but it gets confusing because during the step by step process of creating the new instance, you are asked to select or create a key (at the very last step) which will not work.
Regardless of the key you create or select, only the key you were using for instance XYZ will will be accepted by the new instance.
This work fine:
Add the dependency:
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jdk8</artifactId>
</dependency>
Add the annotation:
@JsonFormat(pattern="yyyy-MM-dd")
Now, you must get the correct format.
To use object mapper, you need register the JavaTime
ObjectMapper mapper = new ObjectMapper();
mapper.registerModule(new JavaTimeModule());
You can do by the following ways
this.your_form.getRawValue()['formcontrolname]
this.your_form.value['formcontrolname]
If anyone else out there is using the WiX toolset, I discovered that my installer project had a reference to an old project that had recently been removed from the solution. Took me a while to realize since there are a number of projects in the solution I was attempting to build and the message did not indicate which project was failing to build (and clean, which was failing as well).
You can do:
def truncate(f, n):
return math.floor(f * 10 ** n) / 10 ** n
testing:
>>> f=1.923328437452
>>> [truncate(f, n) for n in range(5)]
[1.0, 1.9, 1.92, 1.923, 1.9233]
You can try icomet(https://github.com/ideawu/icomet), a C1000K C++ comet server built with libevent. icomet also provides a JavaScript library, it is easy to use as simple as
var comet = new iComet({
sign_url: 'http://' + app_host + '/sign?obj=' + obj,
sub_url: 'http://' + icomet_host + '/sub',
callback: function(msg){
// on server push
alert(msg.content);
}
});
icomet supports a wide range of Browsers and OSes, including Safari(iOS, Mac), IEs(Windows), Firefox, Chrome, etc.
Or to swap the output from standard error and standard output over, use:
command 3>&1 1>&2 2>&3
This creates a new file descriptor (3) and assigns it to the same place as 1 (standard output), then assigns fd 1 (standard output) to the same place as fd 2 (standard error) and finally assigns fd 2 (standard error) to the same place as fd 3 (standard output).
Standard error is now available as standard output and the old standard output is preserved in standard error. This may be overkill, but it hopefully gives more details on Bash file descriptors (there are nine available to each process).
<select name="owner">
<?php
$sql = mysql_query("SELECT username FROM users");
while ($row = mysql_fetch_array($sql)){
echo "<option value=\"owner1\">" . $row['username'] . "</option>";
}
?>
</select>
On Websphere Application Server, in the same situation, it helped deleting the Temp folders while the server was stopped.
I ran into the situation when the package of the service changed.
This will hide your console. Implement these lines in your code first to start hiding your console at first.
import win32gui, win32con
the_program_to_hide = win32gui.GetForegroundWindow()
win32gui.ShowWindow(the_program_to_hide , win32con.SW_HIDE)
Update May 2020 :
If you've got trouble on pip install win32con
on Command Prompt, you can simply pip install pywin32
.Then on your python script, execute import win32.lib.win32con as win32con
instead of import win32con
.
To show back your program again win32con.SW_SHOW
works fine:
win32gui.ShowWindow(the_program_to_hide , win32con.SW_SHOW)
seems you need to link with the obj file that implements tolayer5()
Update: your function declaration doesn't match the implementation:
void tolayer5(int AorB, struct msg msgReceived)
void tolayer5(int, char data[])
So compiler would treat them as two different functions (you are using c++). and it cannot find the implementation for the one you called in main().
I was using jruby, in my case I created under config/initializers
postgres_driver.rb
$CLASSPATH << '~/.rbenv/versions/jruby-1.7.17/lib/ruby/gems/shared/gems/jdbc-postgres-9.4.1200/lib/postgresql-9.4-1200.jdbc4.jar'
or wherever your driver is, and that's it !
You can use this:
return RedirectToAction("actionName", "controllerName", new { area = "Admin" });
This is now possible with JPA 2.1:
@Column(name = "RIGHT")
@Enumerated(EnumType.STRING)
private Right right;
Further details:
For someone who lands to this question. Using pandas with ‘chunksize’ and ‘usecols’ helped me to read a huge zip file faster than the other proposed options.
import pandas as pd
sample_cols_to_keep =['col_1', 'col_2', 'col_3', 'col_4','col_5']
# First setup dataframe iterator, ‘usecols’ parameter filters the columns, and 'chunksize' sets the number of rows per chunk in the csv. (you can change these parameters as you wish)
df_iter = pd.read_csv('../data/huge_csv_file.csv.gz', compression='gzip', chunksize=20000, usecols=sample_cols_to_keep)
# this list will store the filtered dataframes for later concatenation
df_lst = []
# Iterate over the file based on the criteria and append to the list
for df_ in df_iter:
tmp_df = (df_.rename(columns={col: col.lower() for col in df_.columns}) # filter eg. rows where 'col_1' value grater than one
.pipe(lambda x: x[x.col_1 > 0] ))
df_lst += [tmp_df.copy()]
# And finally combine filtered df_lst into the final lareger output say 'df_final' dataframe
df_final = pd.concat(df_lst)
Change that import to
from matplotlib.pyplot import *
Note that this style of imports (from X import *
) is generally discouraged. I would recommend using the following instead:
import matplotlib.pyplot as plt
plt.plot([1,2,3,4])
I know this is old... But I was having the same problem today and found a solution:
Model.find_by_sql
If you want to instantiate the results:
Client.find_by_sql("
SELECT * FROM clients
INNER JOIN orders ON clients.id = orders.client_id
ORDER BY clients.created_at desc
")
# => [<Client id: 1, first_name: "Lucas" >, <Client id: 2, first_name: "Jan">...]
Model.connection.select_all('sql').to_hash
If you just want a hash of values:
Client.connection.select_all("SELECT first_name, created_at FROM clients
WHERE id = '1'").to_hash
# => [
{"first_name"=>"Rafael", "created_at"=>"2012-11-10 23:23:45.281189"},
{"first_name"=>"Eileen", "created_at"=>"2013-12-09 11:22:35.221282"}
]
Result object:
select_all
returns a result
object. You can do magic things with it.
result = Post.connection.select_all('SELECT id, title, body FROM posts')
# Get the column names of the result:
result.columns
# => ["id", "title", "body"]
# Get the record values of the result:
result.rows
# => [[1, "title_1", "body_1"],
[2, "title_2", "body_2"],
...
]
# Get an array of hashes representing the result (column => value):
result.to_hash
# => [{"id" => 1, "title" => "title_1", "body" => "body_1"},
{"id" => 2, "title" => "title_2", "body" => "body_2"},
...
]
# ActiveRecord::Result also includes Enumerable.
result.each do |row|
puts row['title'] + " " + row['body']
end
Sources:
Change the customBinding in the web.config to use larger defaults. I picked 2MB as it is a reasonable size. Of course setting it to 2GB (as your code suggests) will work but it does leave you more vulnerable to attacks. Pick a size that is larger than your largest request but isn't overly large.
Check this : Using Large Message Requests in Silverlight with WCF
<system.serviceModel>
<behaviors>
<serviceBehaviors>
<behavior name="TestLargeWCF.Web.MyServiceBehavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<customBinding>
<binding name="customBinding0">
<binaryMessageEncoding />
<!-- Start change -->
<httpTransport maxReceivedMessageSize="2097152"
maxBufferSize="2097152"
maxBufferPoolSize="2097152"/>
<!-- Stop change -->
</binding>
</customBinding>
</bindings>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"/>
<services>
<service behaviorConfiguration="Web.MyServiceBehavior" name="TestLargeWCF.Web.MyService">
<endpoint address=""
binding="customBinding"
bindingConfiguration="customBinding0"
contract="TestLargeWCF.Web.MyService"/>
<endpoint address="mex"
binding="mexHttpBinding"
contract="IMetadataExchange"/>
</service>
</services>
</system.serviceModel>
I would be suggesting to use following combo of strings, to check if device type being used.
As per Mozilla documentation string Mobi
is recommended. But, some of the old tablets doesn't return true if only Mobi
is used, hence we should use Tablet
string too.
Similarly, for being on the safe side iPad
and iPhone
strings could also be used to check the device type.
Most of the new devices would return true
for Mobi
string alone.
if (/Mobi|Tablet|iPad|iPhone/.test(navigator.userAgent)) {
// do something
}
One of the easiest way to swap first two characters from a String is
inputString = '2134'
extractChar = inputString[0:2]
swapExtractedChar = extractChar[::-1] """Reverse the order of string"""
swapFirstTwoChar = swapExtractedChar + inputString[2:]
# swapFirstTwoChar = inputString[0:2][::-1] + inputString[2:] """For one line code"""
print(swapFirstTwoChar)
You'll need AJAX if you want to update a part of your page without reloading the entire page.
main cshtml view
<div id="refTable">
<!-- partial view content will be inserted here -->
</div>
@Html.TextBox("yearSelect3", Convert.ToDateTime(tempItem3.Holiday_date).Year.ToString());
<button id="pY">PrevY</button>
<script>
$(document).ready(function() {
$("#pY").on("click", function() {
var val = $('#yearSelect3').val();
$.ajax({
url: "/Holiday/Calendar",
type: "GET",
data: { year: ((val * 1) + 1) }
})
.done(function(partialViewResult) {
$("#refTable").html(partialViewResult);
});
});
});
</script>
You'll need to add the fields I have omitted. I've used a <button>
instead of submit buttons because you don't have a form (I don't see one in your markup) and you just need them to trigger javascript on the client side.
The HolidayPartialView gets rendered into html and the jquery done
callback inserts that html fragment into the refTable div.
HolidayController Update action
[HttpGet]
public ActionResult Calendar(int year)
{
var dates = new List<DateTime>() { /* values based on year */ };
HolidayViewModel model = new HolidayViewModel {
Dates = dates
};
return PartialView("HolidayPartialView", model);
}
This controller action takes the year parameter and returns a list of dates using a strongly-typed view model instead of the ViewBag.
view model
public class HolidayViewModel
{
IEnumerable<DateTime> Dates { get; set; }
}
HolidayPartialView.csthml
@model Your.Namespace.HolidayViewModel;
<table class="tblHoliday">
@foreach(var date in Model.Dates)
{
<tr><td>@date.ToString("MM/dd/yyyy")</td></tr>
}
</table>
This is the stuff that gets inserted into your div.
As @Bozho says, you probably want to use getScaledInstance
.
To understand how grph.scale(2.0, 2.0)
works however, you could have a look at this code:
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.*;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
class Main {
public static void main(String[] args) throws IOException {
final int SCALE = 2;
Image img = new ImageIcon("duke.png").getImage();
BufferedImage bi = new BufferedImage(SCALE * img.getWidth(null),
SCALE * img.getHeight(null),
BufferedImage.TYPE_INT_ARGB);
Graphics2D grph = (Graphics2D) bi.getGraphics();
grph.scale(SCALE, SCALE);
// everything drawn with grph from now on will get scaled.
grph.drawImage(img, 0, 0, null);
grph.dispose();
ImageIO.write(bi, "png", new File("duke_double_size.png"));
}
}
Given duke.png:
it produces duke_double_size.png:
Just pass the object reference to the following function and you will get the index
function thisindex(elm)
{
var the_li = elm;
var the_ul = elm.parentNode;
var li_list = the_ul.childNodes;
var count = 0; // Tracks the index of LI nodes
// Step through all the child nodes of the UL
for( var i = 0; i < li_list.length; i++ )
{
var node = li_list.item(i);
if( node )
{
// Check to see if the node is a LI
if( node.nodeName == "LI" )
{
// Increment the count of LI nodes
count++;
// Check to see if this node is the one passed in
if( the_li == node )
{
// If so, alert the current count
alert(count-1);
}
}
}
}
}
Okay, first intuition is here:
handlers = java.util.logging.FileHandler, java.util.logging.ConsoleHandler
.level = ALL
The Java prop file parser isn't all that smart, I'm not sure it'll handle this. But I'll go look at the docs again....
In the mean time, try:
handlers = java.util.logging.FileHandler
java.util.logging.ConsoleHandler.level = ALL
Update
No, duh, needed more coffee. Nevermind.
While I think more, note that you can use the methods in Properties to load and print a prop-file: it might be worth writing a minimal program to see what java thinks it reads in that file.
Another update
This line:
FileInputStream configFile = new FileInputStream("/path/to/app.properties"));
has an extra end-paren. It won't compile. Make sure you're working with the class file you think you are.
Put the APK file into the tools folder in the Android SDK and give the path to tools in the command prompt and use the command:
adb install "name".apk file
Consider using std::multimap
as suggested by @Ulrich Eckhardt. Just that the code could be made even simpler.
Given
std::vector<int> a = {5, 2, 1, 4, 3}; // a: 5 2 1 4 3
To sort in the mean time of insertion
std::multimap<int, std::size_t> mm;
for (std::size_t i = 0; i != a.size(); ++i)
mm.insert({a[i], i});
To retrieve values and original indices
std::vector<int> b;
std::vector<std::size_t> c;
for (const auto & kv : mm) {
b.push_back(kv.first); // b: 1 2 3 4 5
c.push_back(kv.second); // c: 2 1 4 3 0
}
The reason to prefer a std::multimap
to a std::map
is to allow equal values in original vectors. Also please note that, unlike for std::map
, operator[]
is not defined for std::multimap
.
To avoid this error you could either:
You will find instructions on signing third-party assemblies in .NET-fu: Signing an Unsigned Assembly (Without Delay Signing).
The basic principle to sign a thirp-party is to
Disassemble the assembly using ildasm.exe
and save the intermediate language (IL):
ildasm /all /out=thirdPartyLib.il thirdPartyLib.dll
Rebuild and sign the assembly:
ilasm /dll /key=myKey.snk thirdPartyLib.il
The above steps work fine unless your third-party assembly (A.dll) references another library (B.dll) which also has to be signed. You can disassemble, rebuild and sign both A.dll and B.dll using the commands above, but at runtime, loading of B.dll will fail because A.dll was originally built with a reference to the unsigned version of B.dll.
The fix to this issue is to patch the IL file generated in step 1 above. You will need to add the public key token of B.dll to the reference. You get this token by calling
sn -Tp B.dll
which will give you the following output:
Microsoft (R) .NET Framework Strong Name Utility Version 4.0.30319.33440
Copyright (c) Microsoft Corporation. All rights reserved.
Public key (hash algorithm: sha1):
002400000480000094000000060200000024000052534131000400000100010093d86f6656eed3
b62780466e6ba30fd15d69a3918e4bbd75d3e9ca8baa5641955c86251ce1e5a83857c7f49288eb
4a0093b20aa9c7faae5184770108d9515905ddd82222514921fa81fff2ea565ae0e98cf66d3758
cb8b22c8efd729821518a76427b7ca1c979caa2d78404da3d44592badc194d05bfdd29b9b8120c
78effe92
Public key token is a8a7ed7203d87bc9
The last line contains the public key token. You then have to search the IL of A.dll for the reference to B.dll and add the token as follows:
.assembly extern /*23000003*/ MyAssemblyName
{
.publickeytoken = (A8 A7 ED 72 03 D8 7B C9 )
.ver 10:0:0:0
}
The error shows that com.bd.service.ArticleService
is not a registered bean. Add the packages in which you have beans that will be autowired in your application context:
<context:component-scan base-package="com.bd.service"/>
<context:component-scan base-package="com.bd.controleur"/>
Alternatively, if you want to include all subpackages in com.bd
:
<context:component-scan base-package="com.bd">
<context:include-filter type="aspectj" expression="com.bd.*" />
</context:component-scan>
As a side note, if you're using Spring 3.1 or later, you can take advantage of the @ComponentScan
annotation, so that you don't have to use any xml configuration regarding component-scan. Use it in conjunction with @Configuration
.
@Controller
@RequestMapping("/Article/GererArticle")
@Configuration
@ComponentScan("com.bd.service") // No need to include component-scan in xml
public class ArticleControleur {
@Autowired
ArticleService articleService;
...
}
You might find this Spring in depth section on Autowiring useful.
Use std::string::size
or std::string::length
(both are the same).
As you insist to use strlen
, you can:
int size = strlen( str.c_str() );
note the usage of std::string::c_str
, which returns const char*
.
BUT strlen
counts untill it hit \0
char and std::string
can store such chars. In other words, strlen
could sometimes lie for the size.
int[] a = {1,2,3,4,5};
int [] b= new int[a.length]; //New Array and the size of a which is 4
Array.Copy(a,b,a.length);
Where Array is class having method Copy, which copies the element of a array to b array.
While copying from one array to another array, you have to provide same data type to another array of which you are copying.
List is an interface, and you can not initialize an interface. Instantiate an implementing class instead.
Like:
List<String> abc = new ArrayList<String>();
List<String> xyz = new LinkedList<String>();
You could use the CSS3 box-sizing
property to include the external padding and border:
input[type="text"] {
width: 100%;
box-sizing: border-box;
-webkit-box-sizing:border-box;
-moz-box-sizing: border-box;
}
I had issues getting through a form because of this error.
I used Ctrl+Click to click the submit button and navigate through the form as usual.
Google, no API needed:
$data = file_get_contents('http://picasaweb.google.com/data/entry/api/user/<USER_ID>?alt=json');
$d = json_decode($data);
$avatar = $d->{'entry'}->{'gphoto$thumbnail'}->{'$t'};
// Outputs example: https://lh3.googleusercontent.com/-2N6fRg5OFbM/AAAAAAAAAAI/AAAAAAAAADE/2-RmpExH6iU/s64-c/photo.jpg
CHANGE: the 64 in "s64" for the size
As mentioned above, the following link gives you the specific country code to allow Java to localize the number. Every country has its own style.
In the link above you will find the country code which should be placed in here:
...(new Locale(<COUNTRY CODE HERE>));
Switzerland for example formats the numbers as follows:
1000.00 --> 1'000.00
To achieve this, following codes works for me:
NumberFormat nf = NumberFormat.getNumberInstance(new Locale("de","CH"));
nf.setMaximumFractionDigits(2);
DecimalFormat df = (DecimalFormat)nf;
System.out.println(df.format(1000.00));
Result is as expected:
1'000.00
Some DateTime StringFormat samples I found useful. Lifted from C# Examples
DateTime dt = new DateTime(2008, 3, 9, 16, 5, 7, 123);
String.Format("{0:y yy yyy yyyy}", dt); // "8 08 008 2008" year
String.Format("{0:M MM MMM MMMM}", dt); // "3 03 Mar March" month
String.Format("{0:d dd ddd dddd}", dt); // "9 09 Sun Sunday" day
String.Format("{0:h hh H HH}", dt); // "4 04 16 16" hour 12/24
String.Format("{0:m mm}", dt); // "5 05" minute
String.Format("{0:s ss}", dt); // "7 07" second
String.Format("{0:f ff fff ffff}", dt); // "1 12 123 1230" sec.fraction
String.Format("{0:F FF FFF FFFF}", dt); // "1 12 123 123" without zeroes
String.Format("{0:t tt}", dt); // "P PM" A.M. or P.M.
String.Format("{0:z zz zzz}", dt); // "-6 -06 -06:00" time zone
What type of granularity are you looking for? You can typically get by with:
$http.get(url).then(
//success function
function(results) {
//do something w/results.data
},
//error function
function(err) {
//handle error
}
);
I've found that "finally" and "catch" are better off when chaining multiple promises.
Try the vim-way:
ex -s +"g/foo/d" -cwq file.txt
You are trying to assign to literal integer values. 1
, 2
, etc. are not valid names; they are only valid integers:
>>> 1
1
>>> 1 = 'something'
File "<stdin>", line 1
SyntaxError: can't assign to literal
You probably want to use a list or dictionary instead:
names = []
for i in range(1, 6):
name = input("Please enter name {}:".format(i))
names.append(name)
Using a list makes it much easier to pick a random value too:
winner = random.choice(names)
print('Well done {}. You are the winner!'.format(winner))
your composer.phar should be placed in above way.
I experienced the same issue, and found out that the applicationdeployed was of .NET version 3.5, but the Application pool was using .NET 2.0. That caused the problem you described above. Hope it helps someone.
My error:
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid. Detailed Error Information
Module IIS Web Core
Notification BeginRequest
Handler Not yet determined
Error Code 0x80070021
Config Error This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".
Config File \\?\C:\inetpub\MyService\web.config
Requested URL http://localhost:80/MyService.svc
Physical Path C:\inetpub\DeployService\DeployService.svc
Logon Method Not yet determined
Logon User Not yet determined
Config Source
101: </modules>
102: <handlers>
103: <remove name="WebServiceHandlerFactory-Integrated"/>
HTTP Error 500.19 - Internal Server Error
The requested page cannot be accessed because the related configuration data for the page is invalid. Detailed Error Information
Module IIS Web Core
Notification BeginRequest
Handler Not yet determined
Error Code 0x80070021
Config Error This configuration section cannot be used at this path. This happens when the section is locked at a parent level. Locking is either by default (overrideModeDefault="Deny"), or set explicitly by a location tag with overrideMode="Deny" or the legacy allowOverride="false".
Config File \\?\C:\inetpub\DeployService\web.config
Requested URL http://localhost:80/DeployService.svc
Physical Path C:\inetpub\DeployService\DeployService.svc
Logon Method Not yet determined
Logon User Not yet determined
Config Source
101: </modules>
102: <handlers>
103: <remove name="WebServiceHandlerFactory-Integrated"/>`
Perform a hard reboot of your phone. The easiest way to do this is to remove the phone's battery. Wait for at least 30 seconds, then replace the battery. The phone will reboot, and upon completing its restart will have an empty DNS cache.
Read more: How to Flush the DNS on an Android Phone | eHow.com http://www.ehow.com/how_10021288_flush-dns-android-phone.html#ixzz1gRJnmiJb
Just for anyone else who goes through this, the answers above are correct but it can still be a bit confusing especially if you have multiple certificates. These were the steps that I took:
First take note of the date in the actual distribution certificate that is missing its private key. Then go to the keychain application on the other computer and type iOS in the search bar. It will show all of your iOS Developer and Distribution keys so you have to find the right one.
Click the right arrow of each iOS Distribution entry to reveal the certificate and find the one with the correct date and export that one by right clicking and selection export.
Then just import it in the keychain of the new computer and at least with Xcode 9.3 it immediately recognizes it and corrects the error so you can now upload your achieve.
If you want to open a page or window with sending data POST or GET method you can use a code like this:
$.ajax({
type: "get", // or post method, your choice
url: yourFileForInclude.php, // any url in same origin
data: data, // data if you need send some data to page
success: function(msg){
console.log(msg); // for checking
window.open('about:blank').document.body.innerHTML = msg;
}
});
Instant i = Instant.ofEpochSecond(cal.getTime);
Read more here and here
Add a
-webkit-animation-play-state: paused;
to your CSS file, then you can control whether the animation is running or not by using this JS line:
document.getElementById("myDIV").style.WebkitAnimationPlayState = "running";
if you want the animation to run once, every time you click. Remember to set
-webkit-animation-iteration-count: 1;
@user3168844: try the below code:
import java.util.Scanner;
public class LargestSmallestNum {
public void findLargestSmallestNo() {
int smallest = Integer.MAX_VALUE;
int large = 0;
int num;
System.out.println("enter the number");
Scanner input = new Scanner(System.in);
int n = input.nextInt();
for (int i = 0; i < n; i++) {
num = input.nextInt();
if (num > large)
large = num;
if (num < smallest)
smallest = num;
System.out.println("the largest is:" + large);
System.out.println("Smallest no is : " + smallest);
}
}
public static void main(String...strings){
LargestSmallestNum largestSmallestNum = new LargestSmallestNum();
largestSmallestNum.findLargestSmalestNo();
}
}
The solution found here helped us to update master to a previous commit that had already been pushed:
git checkout master
git reset --hard e3f1e37
git push --force origin e3f1e37:master
The key difference from the accepted answer is the commit hash "e3f1e37:" before master in the push command.
user scanner it should work
Scanner scanner = new Scanner(file);
while (scanner.hasNextLine()) {
System.out.println(scanner.nextLine());
}
scanner.close();
Instead of using this:
onkeypress="return fun_AllowOnlyAmountAndDot(this);"
You should use this:
onkeypress="return fun_AllowOnlyAmountAndDot(this.id);"
This will get all dll files and filter ones that match a regex of your directory structure.
Get-ChildItem C:\code -Recurse -filter "*.dll" | where { $_.directory -match 'C:\\code\\myproj.\\bin\\debug'}
If you just want the path, not the object you can add | select fullname
to the end like this:
Get-ChildItem C:\code -Recurse -filter "*.dll" | where { $_.directory -match 'C:\\code\\myproj.\\bin\\debug'} | select fullname
I think (I'm not certain) that foreign key constraints won't do precisely what you want given your table design. Perhaps the best thing to do is to define a stored procedure that will delete a category the way you want, and then call that procedure whenever you want to delete a category.
CREATE PROCEDURE `DeleteCategory` (IN category_ID INT)
LANGUAGE SQL
NOT DETERMINISTIC
MODIFIES SQL DATA
SQL SECURITY DEFINER
BEGIN
DELETE FROM
`products`
WHERE
`id` IN (
SELECT `products_id`
FROM `categories_products`
WHERE `categories_id` = category_ID
)
;
DELETE FROM `categories`
WHERE `id` = category_ID;
END
You also need to add the following foreign key constraints to the linking table:
ALTER TABLE `categories_products` ADD
CONSTRAINT `Constr_categoriesproducts_categories_fk`
FOREIGN KEY `categories_fk` (`categories_id`) REFERENCES `categories` (`id`)
ON DELETE CASCADE ON UPDATE CASCADE,
CONSTRAINT `Constr_categoriesproducts_products_fk`
FOREIGN KEY `products_fk` (`products_id`) REFERENCES `products` (`id`)
ON DELETE CASCADE ON UPDATE CASCADE
The CONSTRAINT clause can, of course, also appear in the CREATE TABLE statement.
Having created these schema objects, you can delete a category and get the behaviour you want by issuing CALL DeleteCategory(category_ID)
(where category_ID is the category to be deleted), and it will behave how you want. But don't issue a normal DELETE FROM
query, unless you want more standard behaviour (i.e. delete from the linking table only, and leave the products
table alone).
For the syntax, it looks like this (leave out the column list to implicitly mean "all")
INSERT INTO this_table_archive
SELECT *
FROM this_table
WHERE entry_date < '2011-01-01 00:00:00'
For avoiding primary key errors if you already have data in the archive table
INSERT INTO this_table_archive
SELECT t.*
FROM this_table t
LEFT JOIN this_table_archive a on a.id=t.id
WHERE t.entry_date < '2011-01-01 00:00:00'
AND a.id is null # does not yet exist in archive
This article describes how to get information about locked MySQL resources. mysqladmin debug
might also be of some use.
Try with this solution: http://phppot.com/php/sorting-mysql-row-order-using-jquery/ where new order is saved in some HMTL element. Then you submit the form with this data to some PHP script, and iterate trough it with for loop.
Note: I had to add another db field of type INT(11) which is updated(timestamp'ed) on each iteration - it serves for script to know which row is recenty updated, or else you end up with scrambled results.
With regards to "How to increment a pointer address and pointer's value?" I think that ++(*p++);
is actually well defined and does what you're asking for, e.g.:
#include <stdio.h>
int main() {
int a = 100;
int *p = &a;
printf("%p\n",(void*)p);
++(*p++);
printf("%p\n",(void*)p);
printf("%d\n",a);
return 0;
}
It's not modifying the same thing twice before a sequence point. I don't think it's good style though for most uses - it's a little too cryptic for my liking.
One special case: a cookie has no path.
In this case set path as cookie.setPath(request.getRequestURI())
The javascript sets cookie without path so the browser shows it as cookie for the current page only. If I try to send the expired cookie with path == /
the browser shows two cookies: one expired with path == /
and another one with path == current page
.
<input type="file">
with a <label>
tag;<span>
or <a>
;input[type="file"]
invisible via display: none
.Why the loop?
You could simply do this:
{% if 'priority' in data %}
<p>Priority: {{ data['priority'] }}</p>
{% endif %}
When you were originally doing your string comparison, you should have used ==
instead.
Do you want to make the label (except for the text) transparent? Windows Forms (I assume WinForms - is this true) doesn't really support transparency. The easiest way, sometimes, is Label's Backcolor to Transparent.
label1.BackColor = System.Drawing.Color.Transparent;
You will run into problems though, as WinForms really doesn't properly support transparency. Otherwise, see here:
http://www.doogal.co.uk/transparent.php
http://www.codeproject.com/KB/dotnet/transparent_controls_net.aspx
http://www.daniweb.com/code/snippet216425.html
Setting the parent of a usercontrol prevents it from being transparent
Good luck!
This is a step-by-step procedure to get pkg-config working on Windows, based on my experience, using the info from Oliver Zendel's comment.
I assume here that MinGW was installed to C:\MinGW. There were multiple versions of the packages available, and in each case I just downloaded the latest version.
Now CMake will be able to use pkg-config if it is configured to use MinGW.
struct.calcsize("P")
returns size of the bytes required to store a single pointer. On a 32-bit system, it would return 4 bytes. On a 64-bit system, it would return 8 bytes.
So the following would return 32
if you're running 32-bit python and 64
if you're running 64-bit python:
Python 2
import struct;print struct.calcsize("P") * 8
Python 3
import struct;print(struct.calcsize("P") * 8)
I needed to pass both: a file and an integer. I did it this way:
needed to pass a file to upload: did it as per Sumit's answer.
Request type : POST
Body -> form-data
under the heading KEY, entered the name of the variable ('file' in my backend code).
in the backend:
file = request.files['file']
Next to 'file', there's a drop-down box which allows you to choose between 'File' or 'Text'. Chose 'File' and under the heading VALUE, 'Select files' appeared. Clicked on this which opened a window to select the file.
2. needed to pass an integer:
went to:
Params
entered variable name (e.g.: id) under KEY and its value (e.g.: 1) under VALUE
in the backend:
id = request.args.get('id')
Worked!
Based on @EdChum's answer, you can try the following solution:
df[df.columns[pd.Series(df.columns).str.contains("foo")]]
This will be really helpful in case not all the columns you want to select start with foo
. This method selects all the columns that contain the substring foo
and it could be placed in at any point of a column's name.
In essence, I replaced .startswith()
with .contains()
.
C# 8 introduced indices and ranges which allow you to write
str[^2..]
This is equivalent to
str.Substring(str.Length - 2, str.Length)
In fact, this is almost exactly what the compiler will generate, so there's no overhead.
Note that you will get an ArgumentOutOfRangeException
if the range isn't within the string.
I was having this same issue this morning. When I checked my Device Manager, it showed COM4 properly, and when I checked in the Arduino IDE COM4 just wasn't an option. Only COM1 was listed.
I tried unplugging and plugging my Arduino in and out a couple more times and eventually COM4 showed up again in the IDE. I didn't have to change any settings.
Hopefully that helps somebody.
For starters:
<p align='center'>
<table width='100%'>
<tr>
<td align='center'><form><input type=submit value="click me" style="width:100%"></form></td>
</tr>
</table>
</p>
Note, if the width of the input button is 100%, you wont need the attribute "align='center'" anymore.
This would be the optimal solution:
<p align='center'>
<table width='100%'>
<tr>
<td><form><input type=submit value="click me" style="width:100%"></form></td>
</tr>
</table>
</p>
Hey there just ran into the same issue you did, the 3rd link down in google brought me to this bit of code that throws the error,
if (kernelFile == NULL) {
kernelFile = avdInfo_getKernelPath(avd);
if (kernelFile == NULL) {
derror( "This AVD's configuration is missing a kernel file!!" );
const char* sdkRootDir = getenv("ANDROID_SDK_ROOT");
if (sdkRootDir) {
derror( "ANDROID_SDK_ROOT is defined (%s) but cannot find kernel file in "
"%s" PATH_SEP "system-images" PATH_SEP
" sub directories", sdkRootDir, sdkRootDir);
} else {
derror( "ANDROID_SDK_ROOT is undefined");
}
exit(2);
to which the person wrote:
"/* If the kernel image name ends in "-armv7", then change the cpu * type automatically. This is a poor man's approach to configuration * management, but should allow us to get past building ARMv7 * system images with dex preopt pass"
So I went back in and downloaded the x86 intel atom version for my desired API level and was able to get the emulator up without the error. Hope it helps you too.....
Right click and open SVN Repo-browser:
Right click on Trunk (working copy) and choose Copy to...:
Input the respective branch's name/path:
Click OK, type the respective log message, and click OK.
Arrow function has a different scope than function,
this.value
will give undefined for an arrow function.
To fix use
$('select').on('change',(event) => {
alert( event.target.value );
});
A .pl is a single script.
In .pm (Perl Module) you have functions that you can use from other Perl scripts:
A Perl module is a self-contained piece of Perl code that can be used by a Perl program or by other Perl modules. It is conceptually similar to a C link library, or a C++ class.
If you are using git
, you can add *.swp
to .gitignore
.
If you want to just delay the closing of the window without having to actually press a button (getchar()
method), you can simply use the sleep()
method; it takes the amount of seconds you want to sleep as an argument.
#include <unistd.h>
// your code here
sleep(3); // sleep for 3 seconds
References: sleep() manual
By default, mongodb is configured to listen only to localhost. Excerpt from mongodb default config file :
# Listen to local interface only. Comment out to listen on all interfaces.
bind_ip=127.0.0.1
One needs to comment the bind_ip to listen from external entities.
You wont be able to add shards unless you start listening on non-local interfaces.
HTH,
Abhay Dandekar
To revert a merge commit, you need to use: git revert -m <parent number>
. So for example, to revert the recent most merge commit using the parent with number 1 you would use:
git revert -m 1 HEAD
To revert a merge commit before the last commit, you would do:
git revert -m 1 HEAD^
Use git show <merge commit SHA1>
to see the parents, the numbering is the order they appear e.g. Merge: e4c54b3 4725ad2
git merge documentation: http://schacon.github.com/git/git-merge.html
git merge discussion (confusing but very detailed): http://schacon.github.com/git/howto/revert-a-faulty-merge.txt
Not only required
field as mentioned in other answers. Its also caused by placing a <input>
field in a hidden <div>
which holds a invalid value.
Consider below example,
<div style="display:none;">
<input type="number" name="some" min="1" max="50" value="0">
</div>
This throws the same error. So make sure the <input>
fields inside hidden <div>
doesnt hold any invalid value.
You can do something like
Iterator iterator = map.keySet().iterator();
while (iterator.hasNext()) {
String key = iterator.next().toString();
Integer value = map.get(key);
System.out.println(key + " " + value);
}
Here 'map' is your concurrent HashMap.
I'll assume that Time
and Product
are columns in a DataFrame
, df
is an instance of DataFrame
, and that other variables are scalar values:
For now, you'll have to reference the DataFrame
instance:
k1 = df.loc[(df.Product == p_id) & (df.Time >= start_time) & (df.Time < end_time), ['Time', 'Product']]
The parentheses are also necessary, because of the precedence of the &
operator vs. the comparison operators. The &
operator is actually an overloaded bitwise operator which has the same precedence as arithmetic operators which in turn have a higher precedence than comparison operators.
In pandas
0.13 a new experimental DataFrame.query()
method will be available. It's extremely similar to subset modulo the select
argument:
With query()
you'd do it like this:
df[['Time', 'Product']].query('Product == p_id and Month < mn and Year == yr')
Here's a simple example:
In [9]: df = DataFrame({'gender': np.random.choice(['m', 'f'], size=10), 'price': poisson(100, size=10)})
In [10]: df
Out[10]:
gender price
0 m 89
1 f 123
2 f 100
3 m 104
4 m 98
5 m 103
6 f 100
7 f 109
8 f 95
9 m 87
In [11]: df.query('gender == "m" and price < 100')
Out[11]:
gender price
0 m 89
4 m 98
9 m 87
The final query that you're interested will even be able to take advantage of chained comparisons, like this:
k1 = df[['Time', 'Product']].query('Product == p_id and start_time <= Time < end_time')
CSV files have no limit of rows you can add to them. Excel won't hold more that the 1 million lines of data if you import a CSV file having more lines.
Excel will actually ask you whether you want to proceed when importing more than 1 million data rows. It suggests to import the remaining data by using the text import wizard again - you will need to set the appropriate line offset.
I know this is quite an old question -
A = [[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]
Let's say, you want to extract the first 2 rows and first 3 columns
A_NEW = A[0:2, 0:3]
A_NEW = [[1, 2, 3],
[4, 5, 6]]
Understanding the syntax
A_NEW = A[start_index_row : stop_index_row,
start_index_column : stop_index_column)]
If one wants row 2 and column 2 and 3
A_NEW = A[1:2, 1:3]
Reference the numpy indexing and slicing article - Indexing & Slicing
If you're just looking for a syntactically simple way to assign/return a string or numeric based on a boolean condition, you can use the multiplication operator like this:
"Condition is "+("true"*$condition)+("false"*!$condition)
(12.34*$condition)+(56.78*!$condition)
If you're only ever interested in the result when something is true, you can just omit the false part entirely (or vice versa), e.g. a simple scoring system:
$isTall = $true
$isDark = $false
$isHandsome = $true
$score = (2*$isTall)+(4*$isDark)+(10*$isHandsome)
"Score = $score"
# or
# "Score = $((2*$isTall)+(4*$isDark)+(10*$isHandsome))"
Note that the boolean value should not be the leading term in the multiplication, i.e. $condition*"true" etc. won't work.
Below is an example of a method in a Java controller.
@RequestMapping(method = RequestMethod.POST)
@ResponseBody
public HttpStatus something(@RequestBody MyModel myModel)
{
return HttpStatus.OK;
}
By using @RequestBody annotation you will get your values mapped with the model you created in your system for handling any specific call. While by using @ResponseBody you can send anything back to the place from where the request was generated. Both things will be mapped easily without writing any custom parser etc.
In my case, I'm using an AppBarLayout with a CollapsingToolbarLayout and the menu was always being scrolled out of the screen, I solved my problem by switching android:actionLayout in menu's XML to the toolbar's id. I hope it can help people in the same situation!
activity_main.xml
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:fab="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".activities.MainScreenActivity"
android:screenOrientation="portrait">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="300dp"
app:elevation="0dp"
android:theme="@style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="@+id/collapsingBar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="exitUntilCollapsed|scroll"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="48dp"
>
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:elevation="0dp"
app:popupTheme="@style/AppTheme.PopupOverlay"
app:layout_collapseMode="pin"/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
main_menu.xml
<?xml version="1.0" encoding="utf-8"?> <menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/logoutMenu"
android:orderInCategory="100"
android:title="@string/log_out"
app:showAsAction="never"
android:actionLayout="@id/toolbar"/>
<item
android:id="@+id/sortMenu"
android:orderInCategory="100"
android:title="@string/sort"
app:showAsAction="never"/> </menu>
You can also try to set a HostnameVerifier as described here. This worked for me to avoid this error.
// Do not do this in production!!!
HostnameVerifier hostnameVerifier = org.apache.http.conn.ssl.SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER;
DefaultHttpClient client = new DefaultHttpClient();
SchemeRegistry registry = new SchemeRegistry();
SSLSocketFactory socketFactory = SSLSocketFactory.getSocketFactory();
socketFactory.setHostnameVerifier((X509HostnameVerifier) hostnameVerifier);
registry.register(new Scheme("https", socketFactory, 443));
SingleClientConnManager mgr = new SingleClientConnManager(client.getParams(), registry);
DefaultHttpClient httpClient = new DefaultHttpClient(mgr, client.getParams());
// Set verifier
HttpsURLConnection.setDefaultHostnameVerifier(hostnameVerifier);
// Example send http request
final String url = "https://encrypted.google.com/";
HttpPost httpPost = new HttpPost(url);
HttpResponse response = httpClient.execute(httpPost);
Update for ECMAScript 2017:
Math.clamp(x, lower, upper)
But note that as of today, it's a Stage 1 proposal. Until it gets widely supported, you can use a polyfill.
You can log all uncaught exceptions on the main thread by assigning a handler to sys.excepthook
, perhaps using the exc_info
parameter of Python's logging functions:
import sys
import logging
logging.basicConfig(filename='/tmp/foobar.log')
def exception_hook(exc_type, exc_value, exc_traceback):
logging.error(
"Uncaught exception",
exc_info=(exc_type, exc_value, exc_traceback)
)
sys.excepthook = exception_hook
raise Exception('Boom')
If your program uses threads, however, then note that threads created using threading.Thread
will not trigger sys.excepthook
when an uncaught exception occurs inside them, as noted in Issue 1230540 on Python's issue tracker. Some hacks have been suggested there to work around this limitation, like monkey-patching Thread.__init__
to overwrite self.run
with an alternative run
method that wraps the original in a try
block and calls sys.excepthook
from inside the except
block. Alternatively, you could just manually wrap the entry point for each of your threads in try
/except
yourself.
List<String> l1 = new ArrayList<String>();
l1.add("apple");
l1.add("orange");
l1.add("banana");
l1.add("strawberry");
List<String> l2 = new ArrayList<String>();
l2.add("apple");
l2.add("orange");
System.out.println(l1);
System.out.println(l2);
for (String A: l2) {
if (l1.contains(A))
l1.remove(A);
}
System.out.println("output");
System.out.println(l1);
Output:
[apple, orange, banana, strawberry]
[apple, orange]
output
[banana, strawberry]
I had the same problem, when I tried to export my project. Nothing to see in the console.
For me the solution was upgrading proguard to the lastest version, hopes this helpes someone.
The average first name is about 6 letters. That leaves 43 for a last name. :) Seems like you could probably shorten it if you like.
The main question is how many rows do you think you will have? I don't think varchar(50) is going to kill you until you get several million rows.
+
characters in the path component is expected to be treated literally.To be explicit: +
is only a special character in the query component.
From the official documentation:
As of PHP 5.2.2, DateTime objects can be compared using comparison operators.
$date1 = new DateTime("now");
$date2 = new DateTime("tomorrow");
var_dump($date1 == $date2); // false
var_dump($date1 < $date2); // true
var_dump($date1 > $date2); // false
For PHP versions before 5.2.2 (actually for any version), you can use diff.
$datetime1 = new DateTime('2009-10-11'); // 11 October 2013
$datetime2 = new DateTime('2009-10-13'); // 13 October 2013
$interval = $datetime1->diff($datetime2);
echo $interval->format('%R%a days'); // +2 days
Ok maybe this one should solve your problem. Note that each time you make a change you call the change() method that releases the wait.
Integer any = new Integer(0);
public synchronized boolean waitTillChange() {
any.wait();
return true;
}
public synchronized void change() {
any.notify();
}
There is an important detail that has been omitted in the answer above.
MySQL imposes a limit of 65,535 bytes for the max size of each row.
The size of a VARCHAR
column is counted towards the maximum row size, while TEXT
columns are assumed to be storing their data by reference so they only need 9-12 bytes. That means even if the "theoretical" max size of your VARCHAR
field is 65,535 characters you won't be able to achieve that if you have more than one column in your table.
Also note that the actual number of bytes required by a VARCHAR
field is dependent on the encoding of the column (and the content). MySQL counts the maximum possible bytes used toward the max row size, so if you use a multibyte encoding like utf8mb4
(which you almost certainly should) it will use up even more of your maximum row size.
Correction: Regardless of how MySQL computes the max row size, whether or not the VARCHAR
/TEXT
field data is ACTUALLY stored in the row or stored by reference depends on your underlying storage engine. For InnoDB the row format affects this behavior. (Thanks Bill-Karwin)
Reasons to use TEXT
:
Reasons to use VARCHAR
:
Things change. The escape/unescape methods have been deprecated.
You can URI encode the string before you Base64-encode it. Note that this does't produce Base64-encoded UTF8, but rather Base64-encoded URL-encoded data. Both sides must agree on the same encoding.
See working example here: http://codepen.io/anon/pen/PZgbPW
// encode string
var base64 = window.btoa(encodeURIComponent('€ ?? æøåÆØÅ'));
// decode string
var str = decodeURIComponent(window.atob(tmp));
// str is now === '€ ?? æøåÆØÅ'
For OP's problem a third party library such as js-base64 should solve the problem.
A trivial approach would be to replace
<[^>]*>
with nothing. But depending on how ill-structured your input is that may well fail.
If you type:
if { number.value.length!= 10}...
It will sure work because the value is the quantity which will be driven from the object.
The simplest solution I've found that doesn't require a plugin:
document.addEventListener('touchstart', handleTouchStart, false);
document.addEventListener('touchmove', handleTouchMove, false);
var xDown = null;
var yDown = null;
function handleTouchStart(evt) {
xDown = evt.touches[0].clientX;
yDown = evt.touches[0].clientY;
};
function handleTouchMove(evt) {
if ( ! xDown || ! yDown ) {
return;
}
var xUp = evt.touches[0].clientX;
var yUp = evt.touches[0].clientY;
var xDiff = xDown - xUp;
var yDiff = yDown - yUp;
if ( Math.abs( xDiff ) > Math.abs( yDiff ) ) {/*most significant*/
if ( xDiff > 0 ) {
/* left swipe */
} else {
/* right swipe */
}
} else {
if ( yDiff > 0 ) {
/* up swipe */
} else {
/* down swipe */
}
}
/* reset values */
xDown = null;
yDown = null;
};
This code will add an event listener to the default local Inbox, then take some action on incoming emails. You need to add that action in the code below.
Private WithEvents Items As Outlook.Items
Private Sub Application_Startup()
Dim olApp As Outlook.Application
Dim objNS As Outlook.NameSpace
Set olApp = Outlook.Application
Set objNS = olApp.GetNamespace("MAPI")
' default local Inbox
Set Items = objNS.GetDefaultFolder(olFolderInbox).Items
End Sub
Private Sub Items_ItemAdd(ByVal item As Object)
On Error Goto ErrorHandler
Dim Msg As Outlook.MailItem
If TypeName(item) = "MailItem" Then
Set Msg = item
' ******************
' do something here
' ******************
End If
ProgramExit:
Exit Sub
ErrorHandler:
MsgBox Err.Number & " - " & Err.Description
Resume ProgramExit
End Sub
After pasting the code in ThisOutlookSession
module, you must restart Outlook.
Here is a very awesome code to find sqrt and even faster than original sqrt function.
float InvSqrt (float x)
{
float xhalf = 0.5f*x;
int i = *(int*)&x;
i = 0x5f375a86 - (i>>1);
x = *(float*)&i;
x = x*(1.5f - xhalf*x*x);
x = x*(1.5f - xhalf*x*x);
x = x*(1.5f - xhalf*x*x);
x=1/x;
return x;
}
Use event delegation for dynamically created elements:
$(document).on("click", '.mylink', function(event) {
alert("new link clicked!");
});
This does actually work, here's an example where I appended an anchor with the class .mylink
instead of data
- http://jsfiddle.net/EFjzG/
var culture = new CultureInfo( "en-GB" );
var dateValue = new DateTime( 2011, 12, 1 );
var result = dateValue.ToString( "d", culture ) );
Just download this registry key and run it. It will add the necessary key to the .NET framework registry. You can have more info at this link. Search for 'Option 2' in '.NET 4.5 to 4.5.2'.
The reg file appends the following to the Registry:
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\.NETFramework\v4.0.30319]
"SchUseStrongCrypto"=dword:00000001
This is the part of the page that is useful in case it goes broken :
" .. enable TLS 1.2 by default without modifying the source code by setting the SchUseStrongCrypto DWORD value in the following two registry keys to 1, creating them if they don't exist: "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft.NETFramework\v4.0.30319" and "HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft.NETFramework\v4.0.30319". Although the version number in those registry keys is 4.0.30319, the .NET 4.5, 4.5.1, and 4.5.2 frameworks also use these values. Those registry keys, however, will enable TLS 1.2 by default in all installed .NET 4.0, 4.5, 4.5.1, and 4.5.2 applications on that system. It is thus advisable to test this change before deploying it to your production servers. This is also available as a registry import file. These registry values, however, will not affect .NET applications that set the System.Net.ServicePointManager.SecurityProtocol value. "
The error message says it all: your connection timed out. This means your request did not get a response within some (default) timeframe. The reasons that no response was received is likely to be one of:
a) The IP/domain or port is incorrect
b) The IP/domain or port (i.e service) is down
c) The IP/domain is taking longer than your default timeout to respond
d) You have a firewall that is blocking requests or responses on whatever port you are using
e) You have a firewall that is blocking requests to that particular host
f) Your internet access is down
g) Your live-server is down i.e in case of "rest-API call".
Note that firewalls and port or IP blocking may be in place by your ISP
Try this:
table {
border-collapse: separate;
border-spacing: 10px;
}
table td, table th {
padding: 10px;
}
Or try this:
table {
border-collapse: collapse;
}
table td, table th {
padding: 10px;
}
Mutable changes the meaning of const
from bitwise const to logical const for the class.
This means that classes with mutable members are longer be bitwise const and will no longer appear in read-only sections of the executable.
Furthermore, it modifies type-checking by allowing const
member functions to change mutable members without using const_cast
.
class Logical {
mutable int var;
public:
Logical(): var(0) {}
void set(int x) const { var = x; }
};
class Bitwise {
int var;
public:
Bitwise(): var(0) {}
void set(int x) const {
const_cast<Bitwise*>(this)->var = x;
}
};
const Logical logical; // Not put in read-only.
const Bitwise bitwise; // Likely put in read-only.
int main(void)
{
logical.set(5); // Well defined.
bitwise.set(5); // Undefined.
}
See the other answers for more details but I wanted to highlight that it isn't merely for type-saftey and that it affects the compiled result.
I cannot help you much without a small (possibly reduced) snippit of the problem. If the problem is what I think it is then it's because a div by default takes up 100% width, and as such cannot be aligned.
What you may be after is to align the inline elements inside the div (such as text) with text-align:center; otherwise you may consider setting the div to display:inline-block;
If you do go down the inline-block route then you may have to consider my favorite IE hack.
width:100px;
display:inline-block;
zoom:1; //IE only
*display:inline; //IE only
Happy Coding :)
If your class extends JFrame then use this.setTitle(newTitle.getText());
If not and it contains a JFrame let's say named myFrame, then use myFrame.setTitle(newTitle.getText());
Now that you have posted your program, it is obvious that you need only one JTextField to get the new title. These changes will do the trick:
JTextField poolLengthText, poolWidthText, poolDepthText, poolVolumeText, hotTub,
hotTubLengthText, hotTubWidthText, hotTubDepthText, hotTubVolumeText, temp, results,
newTitle;
and:
public void createOptions()
{
options = new JPanel();
options.setLayout(null);
JLabel labelOptions = new JLabel("Change Company Name:");
labelOptions.setBounds(120, 10, 150, 20);
options.add(labelOptions);
newTitle = new JTextField("Some Title");
newTitle.setBounds(80, 40, 225, 20);
options.add(newTitle);
// myTitle = new JTextField("My Title...");
// myTitle.setBounds(80, 40, 225, 20);
// myTitle.add(labelOptions);
JButton newName = new JButton("Set New Name");
newName.setBounds(60, 80, 150, 20);
newName.addActionListener(this);
options.add(newName);
JButton Exit = new JButton("Exit");
Exit.setBounds(250, 80, 80, 20);
Exit.addActionListener(this);
options.add(Exit);
}
and:
private void New_Name()
{
this.setTitle(newTitle.getText());
}
Try this code:
using System;
namespace Array
{
class Program
{
static void Main()
{
int[] number = new int[] {5, 5, 6, 7};
int sum = 0;
for (int i = 0; i <number.Length; i++)
{
sum += number[i];
}
Console.WriteLine(sum);
}
}
}
The result is:
23
You have to change date class to timestamp.
String s=df.format(c.getTime());
java.util.Date parsedUtilDate = df.parse(s);
java.sql.Timestamp timestamp = new java.sql.Timestamp(parsedUtilDate.getTime());
If you want to remove all lines in a file from your current line number, use dG
, it will delete all lines (shift g)
mean end of file
Perhaps you can do it while registering your root
with RouterModule
. You can pass a second object with property useHash:true
like the below:
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { AppComponent } from './app.component';
import { ROUTES } from './app.routes';
@NgModule({
declarations: [AppComponent],
imports: [BrowserModule],
RouterModule.forRoot(ROUTES ,{ useHash: true }),],
providers: [],
bootstrap: [AppComponent],
})
export class AppModule {}
This thread will get you started with building your own title bar in a xml file and using it in your activities
Edit
Here is a brief summary of the content of the link above - This is just to set the color of the text and the background of the title bar - no resizing, no buttons, just the simpliest sample
res/layout/mytitle.xml - This is the view that will represent the title bar
<?xml version="1.0" encoding="utf-8"?>
<TextView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/myTitle"
android:text="This is my new title"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="@color/titletextcolor"
/>
res/values/themes.xml - We want to keep the default android theme and just need to change the background color of the title background. So we create a theme that inherits the default theme and set the background style to our own style.
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="customTheme" parent="android:Theme">
<item name="android:windowTitleBackgroundStyle">@style/WindowTitleBackground</item>
</style>
</resources>
res/values/styles.xml - This is where we set the theme to use the color we want for the title background
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="WindowTitleBackground">
<item name="android:background">@color/titlebackgroundcolor</item>
</style>
</resources>
res/values/colors.xml - Set here the color you want
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="titlebackgroundcolor">#3232CD</color>
<color name="titletextcolor">#FFFF00</color>
</resources>
In the AndroidMANIFEST.xml, set the theme attribute either in the application (for the whole application) or in the activity (only this activity) tags
<activity android:name=".CustomTitleBar" android:theme="@style/customTheme" ...
From the Activity (called CustomTitleBar) :
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_CUSTOM_TITLE);
setContentView(R.layout.main);
getWindow().setFeatureInt(Window.FEATURE_CUSTOM_TITLE, R.layout.mytitle);
}
Maybe more simple;
var top = window.pageYOffset || document.documentElement.scrollTop,
left = window.pageXOffset || document.documentElement.scrollLeft;
Credits: so.dom.js#L492
var tds = document.getElementById("ctl00_ContentPlaceHolder1_Jobs_dlItems_ctl01_a").getElementsByTagName("td");
time = tds[0].firstChild.value;
address = tds[3].firstChild.value;
To make it more clear(and to put it together) I had to do Two things mentioned above.
1- Create a file /etc/ld.so.conf.d/opencv.conf
and write to it the paths of folder where your opencv libraries are stored.(Answer by Cookyt)
2- Include the path of your opencv's .so
files in LD_LIBRARY_PATH ()
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/opencv/lib
Always state the workbook, worksheet and the cell/range.
For example:
Thisworkbook.Worksheets("fred").cells(1,1)
Workbooks("bob").Worksheets("fred").cells(1,1)
Because end users will always just click buttons and as soon as the focus moves off of the workbook the code wants to work with then things go completely wrong.
And never use the index of a workbook.
Workbooks(1).Worksheets("fred").cells(1,1)
You don't know what other workbooks will be open when the user runs your code.
public static IEnumerable<DateTime> GetDateRange(DateTime startDate, DateTime endDate)
{
if (endDate < startDate)
throw new ArgumentException("endDate must be greater than or equal to startDate");
while (startDate <= endDate)
{
yield return startDate;
startDate = startDate.AddDays(1);
}
}
I had this error because I was providing a string of arguments to subprocess.call
instead of an array of arguments. To prevent this, use shlex.split
:
import shlex, subprocess
command_line = "ls -a"
args = shlex.split(command_line)
p = subprocess.Popen(args)
Use fabs() instead of abs(), it's the same but for floats instead of integers.
6 and 7 Because static variable intialise only once, So 5++ becomes 6 at 1st call 6++ becomes 7 at 2nd call Note-when 2nd call occurs it takes x value is 6 instead of 5 because x is static variable.
Show whitespace characters in Visual Studio Code
change the setting.json, by adding the following codes!
// Place your settings in this file to overwrite default and user settings.
{
"editor.renderWhitespace": "all"
}
just like this!
(PS: there is no "true" option!, even it also works.)
As for me here the most easily way to add text(Tab -> \t) in textarea by cursor position and save the focus on cursor:
$('#text').keyup(function () {
var cursor = $('#text').prop('selectionStart');
//if cursot is first in textarea
if (cursor == 0) {
//i will add tab in line
$('#text').val('\t' + $('#text').val());
//here we set the cursor position
$('#text').prop('selectionEnd', 1);
} else {
var value = $('#text').val();
//save the value before cursor current position
var valToCur = value.substring(0, cursor);
//save the value after cursor current position
var valAfter = value.substring(cursor, value.length);
//save the new value with added tab in text
$('#text').val(valToCur + '\t' + valAfter);
//set focus of cursot after insert text (1 = because I add only one symbol)
$('#text').prop('selectionEnd', cursor + 1);
}
});
#wrapper
{
min-width:960px;
margin-left:auto;
margin-right:auto;
position-relative;
}
#left
{
width:200px;
position: absolute;
background-color:antiquewhite;
margin-left:10px;
z-index: 2;
}
#content
{
padding-left:210px;
width:100%;
background-color:AppWorkspace;
position: relative;
z-index: 1;
}
If you need the whitespace on the right of #left
, then add a border-right: 10px solid #FFF;
to #left
and add 10px
to the padding-left
in #content
The question was why he's getting this error. Uninstalling will solve this problem but in my case, while I was installing the compiled version of the apk, the problem raised. I was trying to build an update for my application. So what I did, I built a signed apk and then tried to install the apk and the apk installed perfectly. So, rather removing the old apk, I had to sign the newer update and then installed it.
This error also occurs if you did not upload the various rsl/swc/flash-library that your swf file might expect. You may upload this RSL or missing swc or tweak your compiler options cf. http://help.adobe.com/en_US/flashbuilder/using/WSe4e4b720da9dedb5-1a92eab212e75b9d8b2-7ffe.html#WSe4e4b720da9dedb5-1a92eab212e75b9d8b2-7ff5
Well, I cant find any SecondaryInstaller.exe to stop in task manager and even I dont have any AV rather then Windows Defender so I found something else..
I stopped windows Update from elevated cmd by writing command net stop muauserv
and it worked for me...
The update will Retry again for KB2664825 so run the code again in cmd..(because the service starts automatically)
Keep trying and its done for me...!!
Following your clarification you're looking for limit:
SELECT * FROM `table` LIMIT 0, 10
This will display the first 10 results from the database.
SELECT * FROM `table` LIMIT 5, 5 .
Will display 5-9 (5,6,7,8,9)
The syntax follows the pattern:
SELECT * FROM `table` LIMIT [row to start at], [how many to include] .
The SQL for selecting rows where a column is between two values is:
SELECT column_name(s)
FROM table_name
WHERE column_name
BETWEEN value1 AND value2
See: http://www.w3schools.com/sql/sql_between.asp
If you want to go on the row number you can use rownum:
SELECT column_name(s)
FROM table_name
WHERE rownum
BETWEEN x AND y
However we need to know which database engine you are using as rownum is different for most.
A frozen array behaves identically to a python tuple:
const tuple = Object.freeze(["Bob", 24]);
let [name, age]; = tuple
console.debug(name); // "Bob"
console.debug(age); // 24
Be fancy and define a class
class Tuple extends Array {
constructor(...items) {
super(...items);
Object.freeze(this);
}
}
let tuple = new Tuple("Jim", 35);
let [name, age] = tuple;
console.debug(name); // Jim
console.debug(age); // 35
tuple = ["Bob", 24]; // no effect
console.debug(name); // Jim
console.debug(age); // 25
Works today in all the latest browsers.
Answer to the Question
The function json_last_error
returns the last error occurred during the JSON encoding and decoding. So the fastest way to check the valid JSON is
// decode the JSON data
// set second parameter boolean TRUE for associative array output.
$result = json_decode($json);
if (json_last_error() === JSON_ERROR_NONE) {
// JSON is valid
}
// OR this is equivalent
if (json_last_error() === 0) {
// JSON is valid
}
Note that json_last_error
is supported in PHP >= 5.3.0 only.
Full program to check the exact ERROR
It is always good to know the exact error during the development time. Here is full program to check the exact error based on PHP docs.
function json_validate($string)
{
// decode the JSON data
$result = json_decode($string);
// switch and check possible JSON errors
switch (json_last_error()) {
case JSON_ERROR_NONE:
$error = ''; // JSON is valid // No error has occurred
break;
case JSON_ERROR_DEPTH:
$error = 'The maximum stack depth has been exceeded.';
break;
case JSON_ERROR_STATE_MISMATCH:
$error = 'Invalid or malformed JSON.';
break;
case JSON_ERROR_CTRL_CHAR:
$error = 'Control character error, possibly incorrectly encoded.';
break;
case JSON_ERROR_SYNTAX:
$error = 'Syntax error, malformed JSON.';
break;
// PHP >= 5.3.3
case JSON_ERROR_UTF8:
$error = 'Malformed UTF-8 characters, possibly incorrectly encoded.';
break;
// PHP >= 5.5.0
case JSON_ERROR_RECURSION:
$error = 'One or more recursive references in the value to be encoded.';
break;
// PHP >= 5.5.0
case JSON_ERROR_INF_OR_NAN:
$error = 'One or more NAN or INF values in the value to be encoded.';
break;
case JSON_ERROR_UNSUPPORTED_TYPE:
$error = 'A value of a type that cannot be encoded was given.';
break;
default:
$error = 'Unknown JSON error occured.';
break;
}
if ($error !== '') {
// throw the Exception or exit // or whatever :)
exit($error);
}
// everything is OK
return $result;
}
Testing with Valid JSON INPUT
$json = '[{"user_id":13,"username":"stack"},{"user_id":14,"username":"over"}]';
$output = json_validate($json);
print_r($output);
Valid OUTPUT
Array
(
[0] => stdClass Object
(
[user_id] => 13
[username] => stack
)
[1] => stdClass Object
(
[user_id] => 14
[username] => over
)
)
Testing with invalid JSON
$json = '{background-color:yellow;color:#000;padding:10px;width:650px;}';
$output = json_validate($json);
print_r($output);
Invalid OUTPUT
Syntax error, malformed JSON.
Extra note for (PHP >= 5.2 && PHP < 5.3.0)
Since json_last_error
is not supported in PHP 5.2, you can check if the encoding or decoding returns boolean FALSE
. Here is an example
// decode the JSON data
$result = json_decode($json);
if ($result === FALSE) {
// JSON is invalid
}
Hope this is helpful. Happy Coding!
I've been struggling this question for a long time, I want to change my DrawerLayout's drawer width, which is the second child of its parent. Recently I figured it out, but doesn't know if there's a better idea.
override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {
super.onLayout(changed, l, t, r, b)
(getChildAt(1).layoutParams as LayoutParams).width = measuredWidth/2
}
write in ViewDidLoad
var error: NSError?
var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, NSSearchPathDomainMask.UserDomainMask, true)
var documentsDirectory = paths.first as String
var dataPath = documentsDirectory.stringByAppendingPathComponent("MyFolder")
if !NSFileManager.defaultManager().fileExistsAtPath(dataPath) {
NSFileManager.defaultManager().createDirectoryAtPath(dataPath, withIntermediateDirectories: false, attributes: nil, error: &error)
} else {
println("not creted or exist")
}
func listDocumentDirectoryfiles() -> [String] {
if let documentDirectory = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).first as? String {
let myFilePath = documentDirectory.stringByAppendingPathComponent("MyFolder")
return NSFileManager.defaultManager().contentsOfDirectoryAtPath(myFilePath, error: nil) as [String]
}
return []
}
I love this accepted answer, however, rarely do you get requirements to sort html and not have to add icons indicating the sorting direction. I took the accept answer's usage example and fixed that quickly by simply adding bootstrap to my project, and adding the following code:
<div></div>
inside each <th>
so that you have a place to set the icon.
setIcon(this, inverse);
from the accepted answer's Usage, below the line:
th.click(function () {
and by adding the setIcon method:
function setIcon(element, inverse) {
var iconSpan = $(element).find('div');
if (inverse == false) {
$(iconSpan).removeClass();
$(iconSpan).addClass('icon-white icon-arrow-up');
} else {
$(iconSpan).removeClass();
$(iconSpan).addClass('icon-white icon-arrow-down');
}
$(element).siblings().find('div').removeClass();
}
Here is a demo. --You need to either run the demo in Firefox or IE, or disable Chrome's MIME-type checking for the demo to work. It depends on the sortElements Plugin, linked by the accepted answer, as an external resource. Just a heads up!
@Transactional =javax.transaction.Transactional
. Put it just beside @Repository
.
import org.junit.Test;
import java.util.Arrays;
import java.util.List;
import java.util.Optional;
// Stream is ~30 times slower for same operation...
public class StreamPerfTest {
int iterations = 100;
List<Integer> list = Arrays.asList(1, 10, 3, 7, 5);
// 55 ms
@Test
public void stream() {
for (int i = 0; i < iterations; i++) {
Optional<Integer> result = list.stream()
.filter(x -> x > 5)
.findFirst();
System.out.println(result.orElse(null));
}
}
// 2 ms
@Test
public void loop() {
for (int i = 0; i < iterations; i++) {
Integer result = null;
for (Integer walk : list) {
if (walk > 5) {
result = walk;
break;
}
}
System.out.println(result);
}
}
}
This is what I use to upload the image through upload window:
//open upload window
upload.click();
//put path to your image in a clipboard
StringSelection ss = new StringSelection("C:\\IMG_3827.JPG");
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(ss, null);
//imitate mouse events like ENTER, CTRL+C, CTRL+V
Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_ENTER);
robot.keyRelease(KeyEvent.VK_ENTER);
robot.keyPress(KeyEvent.VK_CONTROL);
robot.keyPress(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_V);
robot.keyRelease(KeyEvent.VK_CONTROL);
robot.keyPress(KeyEvent.VK_ENTER);
robot.keyRelease(KeyEvent.VK_ENTER);
done
You have 2 options: Redirect the output of the script to a file, Introduce a log file in the script and
Here you assume that the script outputs all necessary info, including warning and error messages. You can then redirect the output to a file of your choice.
./runTests &> output.log
The above command redirects both the standard output and the error output to your log file.
Using this approach you don't have to introduce a log file in the script, and so the logic is a tiny bit easier.
In your script add a log file either by hard coding it:
logFile='./path/to/log/file.log'
or passing it by a parameter:
logFile="${1}" # This assumes the first parameter to the script is the log file
It's a good idea to add the timestamp at the time of execution to the log file at the top of the script:
date '+%Y%-m%d-%H%M%S' >> "${logFile}"
You can then redirect your error messages to the log file
if [ condition ]; then
echo "Test cases failed!!" >> "${logFile}";
fi
This will append the error to the log file and continue execution. If you want to stop execution when critical errors occur, you can exit
the script:
if [ condition ]; then
echo "Test cases failed!!" >> "${logFile}";
# Clean up if needed
exit 1;
fi
Note that exit 1
indicates that the program stop execution due to an unspecified error. You can customize this if you like.
Using this approach you can customize your logs and have a different log file for each component of your script.
If you have a relatively small script or want to execute somebody else's script without modifying it to the first approach is more suitable.
If you always want the log file to be at the same location, this is the better option of the 2. Also if you have created a big script with multiple components then you may want to log each part differently and the second approach is your only option.
.ipa
file to Desktop, rename it to .zip
file .zip
file and you will get directory with application nameCheck that directory you will find app
file in Payload folder, copy this app
file
Go to ~/Library/Developer/CoreSimulator/Devices
FYI: Library
folder is hidden by default in mac, you can see hidden file using below command.
defaults write com.apple.finder AppleShowAllFiles YES;
killall Finder /System/Library/CoreServices/Finder.app
Now here you'll see many directories with long hexadecimal names, these all are simulators.
To find your desired simulator, sort these directories using "Arranged By > Date Modified".
Select that simulator file and go to below location.
<HEXADECIMAL-SIMULATOR-STRING>/data/Containers/Bundle/Application/
<download-app-name>
and paste app
file in that folderOpen Terminal and run below command to install this application
xcrun simctl install booted <APP_FILE_PATH>
Example <APP_FILE_PATH>
will be looks like below:
~/Library/Developer/CoreSimulator/Devices/<HEXADECIMAL-SIMULATOR-STRING>/data/Containers/Bundle/Application/<APP_NAME>
In addition to what Andrew said, it is worth noting that:
The distinction between a language, a runtime, and a library is more strict in .NET/C# than for example in C++, where the language specification also includes some basic library functions. The C# specification says only a very little about the environment (basically, that it should contain some types such as int
, but that's more or less all).
Just check for it before you pass to your function. So you would pass:
thing.foo ? thing.foo.bar : undefined
First install express and http-proxy-middleware
npm install express http-proxy-middleware --save
Then in your server.js
const express = require('express');
const proxy = require('http-proxy-middleware');
const app = express();
app.use(express.static('client'));
// Add middleware for http proxying
const apiProxy = proxy('/api', { target: 'http://localhost:8080' });
app.use('/api', apiProxy);
// Render your site
const renderIndex = (req, res) => {
res.sendFile(path.resolve(__dirname, 'client/index.html'));
}
app.get('/*', renderIndex);
app.listen(3000, () => {
console.log('Listening on: http://localhost:3000');
});
In this example we serve the site on port 3000, but when a request end with /api we redirect it to localhost:8080.
http://localhost:3000/api/login redirect to http://localhost:8080/api/login
Working on the same idea as above , but generalizing a bit . Since the backspace should work fine on the input elements , but should not work if the focus is a paragraph or something , since it is there where the page tends to go back to the previous page in history .
$('html').on('keydown' , function(event) {
if(! $(event.target).is('input')) {
console.log(event.which);
//event.preventDefault();
if(event.which == 8) {
// alert('backspace pressed');
return false;
}
}
});
returning false => both event.preventDefault and event.stopPropagation are in effect .
There's actually seven variants of this:
char description unicode html html entity utf-8 · Middle Dot U+00B7 · · C2 B7 · Greek Ano Teleia U+0387 · CE 87 • Bullet U+2022 • • E2 80 A2 ‧ Hyphenation Point U+2027 ₁ E2 80 A7 ∙ Bullet Operator U+2219 ∙ E2 88 99 ● Black Circle U+25CF ● E2 97 8F ⬤ Black Large Circle U+2B24 ⬤ E2 AC A4
Depending on your viewing application or font, the Bullet Operator may seem very similar to either the Middle Dot or the Bullet.
When you concatenate strings, you need to allocate memory to store the result. The easiest to start with is String
and &str
:
fn main() {
let mut owned_string: String = "hello ".to_owned();
let borrowed_string: &str = "world";
owned_string.push_str(borrowed_string);
println!("{}", owned_string);
}
Here, we have an owned string that we can mutate. This is efficient as it potentially allows us to reuse the memory allocation. There's a similar case for String
and String
, as &String
can be dereferenced as &str
.
fn main() {
let mut owned_string: String = "hello ".to_owned();
let another_owned_string: String = "world".to_owned();
owned_string.push_str(&another_owned_string);
println!("{}", owned_string);
}
After this, another_owned_string
is untouched (note no mut
qualifier). There's another variant that consumes the String
but doesn't require it to be mutable. This is an implementation of the Add
trait that takes a String
as the left-hand side and a &str
as the right-hand side:
fn main() {
let owned_string: String = "hello ".to_owned();
let borrowed_string: &str = "world";
let new_owned_string = owned_string + borrowed_string;
println!("{}", new_owned_string);
}
Note that owned_string
is no longer accessible after the call to +
.
What if we wanted to produce a new string, leaving both untouched? The simplest way is to use format!
:
fn main() {
let borrowed_string: &str = "hello ";
let another_borrowed_string: &str = "world";
let together = format!("{}{}", borrowed_string, another_borrowed_string);
// After https://rust-lang.github.io/rfcs/2795-format-args-implicit-identifiers.html
// let together = format!("{borrowed_string}{another_borrowed_string}");
println!("{}", together);
}
Note that both input variables are immutable, so we know that they aren't touched. If we wanted to do the same thing for any combination of String
, we can use the fact that String
also can be formatted:
fn main() {
let owned_string: String = "hello ".to_owned();
let another_owned_string: String = "world".to_owned();
let together = format!("{}{}", owned_string, another_owned_string);
// After https://rust-lang.github.io/rfcs/2795-format-args-implicit-identifiers.html
// let together = format!("{owned_string}{another_owned_string}");
println!("{}", together);
}
You don't have to use format!
though. You can clone one string and append the other string to the new string:
fn main() {
let owned_string: String = "hello ".to_owned();
let borrowed_string: &str = "world";
let together = owned_string.clone() + borrowed_string;
println!("{}", together);
}
Note - all of the type specification I did is redundant - the compiler can infer all the types in play here. I added them simply to be clear to people new to Rust, as I expect this question to be popular with that group!
All credits to @Martijn Pieters in the comments:
You can use the function last_insert_rowid()
:
The
last_insert_rowid()
function returns theROWID
of the last row insert from the database connection which invoked the function. Thelast_insert_rowid()
SQL function is a wrapper around thesqlite3_last_insert_rowid()
C/C++ interface function.
>>> import re
>>> string = "Kl13@£$%[};'\""
>>> pattern = re.compile('\W')
>>> string = re.sub(pattern, '', string)
>>> print string
Kl13
You can use TimerTask for Cronjobs.
Main.java
public class Main{
public static void main(String[] args){
Timer t = new Timer();
MyTask mTask = new MyTask();
// This task is scheduled to run every 10 seconds
t.scheduleAtFixedRate(mTask, 0, 10000);
}
}
MyTask.java
class MyTask extends TimerTask{
public MyTask(){
//Some stuffs
}
@Override
public void run() {
System.out.println("Hi see you after 10 seconds");
}
}
Alternative You can also use ScheduledExecutorService.
Yes, it is not required and is usually omitted. It might be required for accessing variables after they have been overridden in the scope though:
Person::Person() {
int age;
this->age = 1;
}
Also, this:
Person::Person(int _age) {
age = _age;
}
It is pretty bad style; if you need an initializer with the same name use this notation:
Person::Person(int age) : age(age) {}
More info here: https://en.cppreference.com/w/cpp/language/initializer_list
For my list view am using custom Adapter which extends ArrayAdapter. in listiview i have 2 buttons one of the buttons as Custom AlertDialogBox. Ex: Activity parentActivity; Constructor for Adapter `
public CustomAdapter(ArrayList<Contact> data, Activity parentActivity,Context context) {
super(context,R.layout.listdummy,data);
this.mContext = context;
this.parentActivity = parentActivity;
}
` calling Adapter from MainActivty
adapter = new CustomAdapter(dataModels,MainActivity.this,this);
_x000D_
now write ur alertdialog inside ur button which is in the Adapter class
viewHolder.update.setOnClickListener(new View.OnClickListener() {_x000D_
@Override_x000D_
public void onClick(final View view) {_x000D_
_x000D_
_x000D_
AlertDialog.Builder alertDialog = new AlertDialog.Builder(parentActivity);_x000D_
alertDialog.setTitle("Updating");_x000D_
alertDialog.setCancelable(false);_x000D_
_x000D_
LayoutInflater layoutInflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);_x000D_
@SuppressLint("InflateParams") final View view1 = layoutInflater.inflate(R.layout.dialog,null);_x000D_
alertDialog.setView(view1);_x000D_
alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {_x000D_
@Override_x000D_
public void onClick(DialogInterface dialogInterface, int i) {_x000D_
dialogInterface.cancel();_x000D_
}_x000D_
});_x000D_
alertDialog.setPositiveButton("Update", new DialogInterface.OnClickListener() {_x000D_
@Override_x000D_
public void onClick(DialogInterface dialogInterface, int i) {_x000D_
_x000D_
//ur logic_x000D_
}_x000D_
}_x000D_
});_x000D_
alertDialog.create().show();_x000D_
_x000D_
}_x000D_
});
_x000D_
UPDATE
Angular offers now the two scope methods $watchGroup (since 1.3) and $watchCollection. Those have been mentioned by @blazemonger and @kargold.
This should work independent of the types and values:
$scope.$watch('[age,name]', function () { ... }, true);
You have to set the third parameter to true in this case.
The string concatenation 'age + name'
will fail in a case like this:
<button ng-init="age=42;name='foo'" ng-click="age=4;name='2foo'">click</button>
Before the user clicks the button the watched value would be 42foo
(42
+ foo
) and after the click 42foo
(4
+ 2foo
). So the watch function would not be called. So better use an array expression if you cannot ensure, that such a case will not appear.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="//cdn.jsdelivr.net/jasmine/1.3.1/jasmine.css" rel="stylesheet" />
<script src="//cdn.jsdelivr.net/jasmine/1.3.1/jasmine.js"></script>
<script src="//cdn.jsdelivr.net/jasmine/1.3.1/jasmine-html.js"></script>
<script src="http://code.angularjs.org/1.2.0-rc.2/angular.js"></script>
<script src="http://code.angularjs.org/1.2.0-rc.2/angular-mocks.js"></script>
<script>
angular.module('demo', []).controller('MainCtrl', function ($scope) {
$scope.firstWatchFunctionCounter = 0;
$scope.secondWatchFunctionCounter = 0;
$scope.$watch('[age, name]', function () { $scope.firstWatchFunctionCounter++; }, true);
$scope.$watch('age + name', function () { $scope.secondWatchFunctionCounter++; });
});
describe('Demo module', function () {
beforeEach(module('demo'));
describe('MainCtrl', function () {
it('watch function should increment a counter', inject(function ($controller, $rootScope) {
var scope = $rootScope.$new();
scope.age = 42;
scope.name = 'foo';
var ctrl = $controller('MainCtrl', { '$scope': scope });
scope.$digest();
expect(scope.firstWatchFunctionCounter).toBe(1);
expect(scope.secondWatchFunctionCounter).toBe(1);
scope.age = 4;
scope.name = '2foo';
scope.$digest();
expect(scope.firstWatchFunctionCounter).toBe(2);
expect(scope.secondWatchFunctionCounter).toBe(2); // This will fail!
}));
});
});
(function () {
var jasmineEnv = jasmine.getEnv();
var htmlReporter = new jasmine.HtmlReporter();
jasmineEnv.addReporter(htmlReporter);
jasmineEnv.specFilter = function (spec) {
return htmlReporter.specFilter(spec);
};
var currentWindowOnload = window.onload;
window.onload = function() {
if (currentWindowOnload) {
currentWindowOnload();
}
execJasmine();
};
function execJasmine() {
jasmineEnv.execute();
}
})();
</script>
</head>
<body></body>
</html>
http://plnkr.co/edit/2DwCOftQTltWFbEDiDlA?p=preview
PS:
As stated by @reblace in a comment, it is of course possible to access the values:
$scope.$watch('[age,name]', function (newValue, oldValue) {
var newAge = newValue[0];
var newName = newValue[1];
var oldAge = oldValue[0];
var oldName = oldValue[1];
}, true);
Static variable in a header file:
say 'common.h'
has
static int zzz;
This variable 'zzz'
has internal linkage (This same variable can not be accessed in other translation units). Each translation unit which includes 'common.h'
has it's own unique object of name 'zzz'
.
Static variable in a class:
Static variable in a class is not a part of the subobject of the class. There is only one copy of a static data member shared by all the objects of the class.
$9.4.2/6 - "Static data members of a class in namespace scope have external linkage (3.5).A local class shall not have static data members."
So let's say 'myclass.h'
has
struct myclass{
static int zzz; // this is only a declaration
};
and myclass.cpp
has
#include "myclass.h"
int myclass::zzz = 0 // this is a definition,
// should be done once and only once
and "hisclass.cpp"
has
#include "myclass.h"
void f(){myclass::zzz = 2;} // myclass::zzz is always the same in any
// translation unit
and "ourclass.cpp"
has
#include "myclass.h"
void g(){myclass::zzz = 2;} // myclass::zzz is always the same in any
// translation unit
So, class static members are not limited to only 2 translation units. They need to be defined only once in any one of the translation units.
Note: usage of 'static' to declare file scope variable is deprecated and unnamed namespace is a superior alternate
npm install --global --production windows-build-tools
From the Linux manual page:
h A following integer conversion corresponds to a short int or unsigned short int argument, or a fol- lowing n conversion corresponds to a pointer to a short int argument.
So to print an unsigned short integer, the format string should be "%hu"
.
@ECHO OFF
SETLOCAL
SET "string=string1 by string2.txt"
SET "string=%string:* by =%"
ECHO +%string%+
GOTO :EOF
The above SET command will remove the unwanted data. Result shown between + to demonstrate absence of spaces.
Formula: set var=%somevar:*string1=string2%
will assign to var the value of somevar with all characters up to string1 replaced by string2. The enclosing quotes in a set command ensure that any stray trailing spaces on the line are not included in the value assigned.
Also, when you uninstall the package, the first item listed is the directory to the executable.
I can't say how widespred it is, but speaking personally, I always (and have always) prefixed my member variables with 'm'. E.g.:
class Person {
....
private:
std::string mName;
};
It's the only form of prefixing I do use (I'm very anti Hungarian notation) but it has stood me in good stead over the years. As an aside, I generally detest the use of underscores in names (or anywhere else for that matter), but do make an exception for preprocessor macro names, as they are usually all uppercase.
Is there an easy way to achieve this in Android?
Yes, today there is, and it is very simple.
Just use the MaterialButton
in the Material Components library with the app:cornerRadius
attribute.
Something like:
<com.google.android.material.button.MaterialButton
android:text="BUTTON"
app:cornerRadius="8dp"
../>
It is enough to obtain a Button with rounded corners.
You can use one of Material button styles. For example:
<com.google.android.material.button.MaterialButton
style="@style/Widget.MaterialComponents.Button.OutlinedButton"
.../>
Also starting from the version 1.1.0 you can also change the shape of your button. Just use the shapeAppearanceOverlay
attribute in the button style:
<style name="MyButtonStyle" parent="Widget.MaterialComponents.Button">
<item name="shapeAppearanceOverlay">@style/ShapeAppearanceOverlay.MyApp.Button.Rounded</item>
</style>
<style name="ShapeAppearanceOverlay.MyApp.Button.Rounded" parent="">
<item name="cornerFamily">rounded</item>
<item name="cornerSize">16dp</item>
</style>
Then just use:
<com.google.android.material.button.MaterialButton
style="@style/MyButtonStyle"
.../>
You can also apply the shapeAppearanceOverlay
in the xml layout:
<com.google.android.material.button.MaterialButton
app:shapeAppearanceOverlay="@style/ShapeAppearanceOverlay.MyApp.Button.Rounded"
.../>
The shapeAppearance
allows also to have different shape and dimension for each corner:
<style name="ShapeAppearanceOverlay.MyApp.Button.Rounded" parent="">
<item name="cornerFamily">rounded</item>
<item name="cornerFamilyTopRight">cut</item>
<item name="cornerFamilyBottomRight">cut</item>
<item name="cornerSizeTopLeft">32dp</item>
<item name="cornerSizeBottomLeft">32dp</item>
</style>
Here's the YUI version if anyone's interested:
http://developer.yahoo.com/yui/docs/YAHOO.util.Number.html
var str = YAHOO.util.Number.format(12345, { thousandsSeparator: ',' } );
It means the object you are trying to access None
. None
is a Null
variable in python.
This type of error is occure de to your code is something like this.
x1 = None
print(x1.something)
#or
x1 = None
x1.someother = "Hellow world"
#or
x1 = None
x1.some_func()
# you can avoid some of these error by adding this kind of check
if(x1 is not None):
... Do something here
else:
print("X1 variable is Null or None")
This is a way to create tables dynamically using T-SQL stored procedures:
declare @cmd nvarchar(1000), @MyTableName nvarchar(100);
set @MyTableName = 'CustomerDetails';
set @cmd = 'CREATE TABLE dbo.' + quotename(@MyTableName, '[') + '(ColumnName1 int not null,ColumnName2 int not null);';
Execute it as:
exec(@cmd);
assertNotNull
asserts that the object is not null. If it is null the test fails, so you want that.
In my case it was the xxxxxxxxxxxx.vcxproj.user file that was causing the problem; it was blank after a crash. I renamed it and the problem went away.
I had the same problem. I was able to solve the problem from application side, under the following scenario:
JDK8, spring framework 4.2.4.RELEASE, apache tomcat 7.0.63, Oracle Database 11g Enterprise Edition 11.2.0.4.0
I used the database connection pooling apache tomcat-jdbc
:
You can take the following configuration parameters as a reference:
<Resource name="jdbc/exampleDB"
auth="Container"
type="javax.sql.DataSource"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
testWhileIdle="true"
testOnBorrow="true"
testOnReturn="false"
validationQuery="SELECT 1 FROM DUAL"
validationInterval="30000"
timeBetweenEvictionRunsMillis="30000"
maxActive="100"
minIdle="10"
maxWait="10000"
initialSize="10"
removeAbandonedTimeout="60"
removeAbandoned="true"
logAbandoned="true"
minEvictableIdleTimeMillis="30000"
jmxEnabled="true"
jdbcInterceptors="org.apache.tomcat.jdbc.pool.interceptor.ConnectionState;
org.apache.tomcat.jdbc.pool.interceptor.StatementFinalizer"
username="your-username"
password="your-password"
driverClassName="oracle.jdbc.driver.OracleDriver"
url="jdbc:oracle:thin:@localhost:1521:xe"/>
This configuration was sufficient to fix the error. This works fine for me in the scenario mentioned above.
For more details about the setup apache tomcat-jdbc: https://tomcat.apache.org/tomcat-7.0-doc/jdbc-pool.html