I solved that by first cleaning the cache using
npm cache clean --force
Then
npm install -g @angular/cli
CASCADE will also delete the corresponding field connected with it.
From the documentation for strtotime()
:
Dates in the m/d/y or d-m-y formats are disambiguated by looking at the separator between the various components: if the separator is a slash (/), then the American m/d/y is assumed; whereas if the separator is a dash (-) or a dot (.), then the European d-m-y format is assumed.
In your date string, you have 12-16-2013
. 16
isn't a valid month, and hence strtotime()
returns false
.
Since you can't use DateTime class, you could manually replace the -
with /
using str_replace()
to convert the date string into a format that strtotime()
understands:
$date = '2-16-2013';
echo date('Y-m-d', strtotime(str_replace('-','/', $date))); // => 2013-02-16
Just a side note to the discussion about JVM and JIT Compilation. This is the same principle as with C# and the CLR and to some extent in Python, and when somebody says that the code runs "directly on hardware" that is actually true in that instructions that is already compiled will be able to take advantage of optimization on the machine/cpu it's being run on. So even if the initial compilation of a module is rather slow, the next time this module is run, the code being executed runs at native speed and thus runs directly on hardware so to say.
Android SDK build tools are used to debug, build, run and test an Android application.
Android Build Tools can be used to develop and work from command line or IDE (i.e Eclipse or Android Studio).
Also used to connect Android devices and root them.(fastboot, adb and more..)
Always use the latest.(Recommended)
void foo(void)
is better because it explicitly says: no parameters allowed.
void foo()
means you could (under some compilers) send parameters, at least if this is the declaration of your function rather than its definition.
If you need more control (perhaps you need to state the table name) you can also do the following:
Model.joins(:another_model_table_name)
.where('another_model_table_name.id IN (?)', your_id_array)
Try this :
NSDate * timestamp = [NSDate dateWithTimeIntervalSince1970:[[NSDate date] timeIntervalSince1970]];
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss.SSS"];
NSString *newDateString = [dateFormatter stringFromDate:timestamp];
timestamp = (NSDate*)newDateString;
In this example, dateWithTimeIntervalSince1970 is used in combination of the formatter @"YYYY-MM-dd HH:mm:ss.SSS" that will return the date with year, month, day and the time with hours, minutes, seconds, and milliseconds. See the example : "2015-12-02 04:43:15.008". I used the NSString to be sure that the format will be has written before.
For best performance I recommend doing DataFrame.drop_duplicates
followed up aggfunc='count'
.
Others are correct that aggfunc=pd.Series.nunique
will work. This can be slow, however, if the number of index
groups you have is large (>1000).
So instead of (to quote @Javier)
df2.pivot_table('X', 'Y', 'Z', aggfunc=pd.Series.nunique)
I suggest
df2.drop_duplicates(['X', 'Y', 'Z']).pivot_table('X', 'Y', 'Z', aggfunc='count')
This works because it guarantees that every subgroup (each combination of ('Y', 'Z')
) will have unique (non-duplicate) values of 'X'
.
The links in Dave's post are great. Just to put a few technical details about the google links into an answer here on SO:
Google Calendar Link
<a href="http://www.google.com/calendar/event?action=TEMPLATE&text=Example%20Event&dates=20131124T010000Z/20131124T020000Z&details=Event%20Details%20Here&location=123%20Main%20St%2C%20Example%2C%20NY">Add to gCal</a>
the parameters being:
Here's a new link structure that seems to support the new google version of google calendar w/o requiring API interaction:
https://calendar.google.com/calendar/r/eventedit?text=My+Custom+Event&dates=20180512T230000Z/20180513T030000Z&details=For+details,+link+here:+https://example.com/tickets-43251101208&location=Garage+Boston+-+20+Linden+Street+-+Allston,+MA+02134
New base url: https://calendar.google.com/calendar/r/eventedit
New parameters:
Notes:
+
for space in addition to %20
(urlencode
vs rawurlencode
in php - both work)If there is no authentication enabled (username/password) and still unable to connect. Just use localhost and default port. Click Test and Save, if test connection is successful.
Regards Jagdish
In one line, answer is as below;
[ CASE WHEN COLUMN_NAME = 'VALUE' THEN 'SHOW_THIS' ELSE 'SHOW_OTHER' END as ALIAS ]
can also appear if:
struct foo { int x, int y, int z }foo;
foo.x=12
instead of
struct foo { int x; int y; int z; }foo;
foo.x=12
From Git v1.7.8 to v1.8.5.6, you can use this:
git fetch <remote> --prune --tags
This doesn't work on newer versions of git (starting with v1.9.0) because of commit e66ef7ae6f31f2. I don't really want to delete it though since it did work for some people.
As suggested by "Chad Juliano", with all Git version since v1.7.8, you can use the following command:
git fetch --prune <remote> +refs/tags/*:refs/tags/*
You may need to enclose the tags part with quotes (on Windows for example) to avoid wildcard expansion:
git fetch --prune <remote> "+refs/tags/*:refs/tags/*"
declare @sqlVers numeric(4,2)
select @sqlVers = left(cast(serverproperty('productversion') as varchar), 4)
Gives 8.00, 9.00, 10.00 and 10.50 for SQL 2000, 2005, 2008 and 2008R2 respectively.
Also, Try the system extended procedure xp_msver
. You can call this stored procedure like
exec master..xp_msver
%matplotlib
is a magic function in IPython. I'll quote the relevant documentation here for you to read for convenience:
IPython has a set of predefined ‘magic functions’ that you can call with a command line style syntax. There are two kinds of magics, line-oriented and cell-oriented. Line magics are prefixed with the % character and work much like OS command-line calls: they get as an argument the rest of the line, where arguments are passed without parentheses or quotes. Lines magics can return results and can be used in the right hand side of an assignment. Cell magics are prefixed with a double %%, and they are functions that get as an argument not only the rest of the line, but also the lines below it in a separate argument.
%matplotlib inline
sets the backend of matplotlib to the 'inline' backend:
With this backend, the output of plotting commands is displayed inline within frontends like the Jupyter notebook, directly below the code cell that produced it. The resulting plots will then also be stored in the notebook document.
When using the 'inline' backend, your matplotlib graphs will be included in your notebook, next to the code. It may be worth also reading How to make IPython notebook matplotlib plot inline for reference on how to use it in your code.
If you want interactivity as well, you can use the nbagg backend with %matplotlib notebook
(in IPython 3.x), as described here.
As a newbie, I faced the same 'problem'.
In newbie terms :
when you call plot()
, the graph window gets the focus and you cannot enter further commands into R. That is when you conclude that you must close the graph window to return to R.
However, some commands, like identify()
, act on open/active graph windows.
When identify()
cannot find an open/active graph window, it gives this error message.
However, you can simply click on the R window without closing the graph window. Then you can type more commands at the R prompt, like identify()
etc.
I wasn't happy with any of the answers here, and went looking for a command-line solution.
In macOS Sierra 10.12, Apple introduced a new way for users to remap keys.
If that sounds good to you, take a look at hidutil
.
For example, to remap caps-lock to escape, refer to the key table and find that caps-lock has usage code 0x39 and escape has usage code 0x29. Put these codes or'd with the hex value 0x700000000 in the source and dest like this:
hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000039,"HIDKeyboardModifierMappingDst":0x700000029}]}'
You may add other mappings in the same command. Personally, I like to remap caps-lock to backspace, and remap backspace to delete:
hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000039,"HIDKeyboardModifierMappingDst":0x70000002A}, {"HIDKeyboardModifierMappingSrc":0x70000002A,"HIDKeyboardModifierMappingDst":0x70000004C}]}'
To see the current mapping:
hidutil property --get "UserKeyMapping"
Your changes will be lost at system reboot. If you want them to persist, configure them in a launch agent. Here's mine:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<!-- Place in ~/Library/LaunchAgents/ -->
<!-- launchctl load com.ldaws.CapslockBackspace.plist -->
<plist version="1.0">
<dict>
<key>Label</key>
<string>com.ldaws.CapslockEsc</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/hidutil</string>
<string>property</string>
<string>--set</string>
<string>{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x700000039,"HIDKeyboardModifierMappingDst":0x70000002A},{"HIDKeyboardModifierMappingSrc":0x70000002A,"HIDKeyboardModifierMappingDst":0x70000004C}]}</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
I've placed this content into a file located at ~/Library/LaunchAgents/com.ldaws.CapslockBackspace.plist
and then executed:
launchctl load com.ldaws.CapslockBackspace.plist
Use That :
$(selector).trigger("change");
OR
$('#id').trigger("click");
OR
$('.class').trigger(event);
Trigger can be any event that javascript support.. Hope it's easy to understandable to all of You.
I got this error while debugging my app on an iPhone 4. Hard rebooting the iPhone solved my problem. (Powering off the iPhone hung...)
I did not have any zombie process on my mac and rebooting the mac did not solve the problem.
Maybe this bug can manifest itself on both the simulator and actual devices???
Your html is not updated every 15 seconds. The cause could be browser caching. Add Math.random()
to avoid browser caching, and it's better to wait until the DOM is fully loaded as pointed out by @shadow. But I think the main cause is the caching
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.0/jquery.min.js" />
<script type="text/javascript">
$(document).ready(function(){
var auto_refresh = setInterval(
function ()
{
$('.View').load('Small.php?' + Math.random()).fadeIn("slow");
}, 15000); // refresh every 15000 milliseconds
});
</script>
The second (assuming you means CONTAINS
, and actually put it in a valid query) should be faster, because it can use some form of index (in this case, a full text index). Of course, this form of query is only available if the column is in a full text index. If it isn't, then only the first form is available.
The first query, using LIKE, will be unable to use an index, since it starts with a wildcard, so will always require a full table scan.
The CONTAINS
query should be:
SELECT * FROM table WHERE CONTAINS(Column, 'test');
Create a label on top of the select
<label class="hidden-label" for="IsActive"
*ngIf="filterIsActive == undefined">Placeholder text</label>
<select class="form-control form-control-sm" type="text" name="filterIsActive"
[(ngModel)]="filterIsActive" id="IsActive">
<option value="true">true</option>
<option value="false">false</option>
</select>
and apply CSS to place it on top
.hidden-label {
position: absolute;
margin-top: .34rem;
margin-left: .56rem;
font-style: italic;
pointer-events: none;
}
pointer-events: none
allows you to display the select when you click on the label, which is hidden when you select an option.
Try this
import datetime
import time
start_time = datetime.datetime.now().time().strftime('%H:%M:%S')
time.sleep(5)
end_time = datetime.datetime.now().time().strftime('%H:%M:%S')
total_time=(datetime.datetime.strptime(end_time,'%H:%M:%S') - datetime.datetime.strptime(start_time,'%H:%M:%S'))
print total_time
OUTPUT :
0:00:05
Above answers give you a hardcoded path solution. This is bad on so many levels (java version change, OS change, etc).
Cleaner solution is to add:
JAVA_HOME = $(shell dirname $$(readlink -f $$(which java))|sed 's^jre/bin^^')
near the top of your makefile, then add:
-I$(JAVA_HOME)/include
To your include flags.
I am posting this because I ran into the same problem and spent too much time googling for wrong answers (I am building an app on multiple platforms so the build environment needs to be transportable).
See http://developer.android.com/reference/android/R.attr.html#state_above_anchor for a list of available states.
If you want to set colors for disabled, unfocused, unchecked states etc. just negate the states:
int[][] states = new int[][] {
new int[] { android.R.attr.state_enabled}, // enabled
new int[] {-android.R.attr.state_enabled}, // disabled
new int[] {-android.R.attr.state_checked}, // unchecked
new int[] { android.R.attr.state_pressed} // pressed
};
int[] colors = new int[] {
Color.BLACK,
Color.RED,
Color.GREEN,
Color.BLUE
};
ColorStateList myList = new ColorStateList(states, colors);
if you are using cmake and used pthreads, try add the following lines
find_package(Threads)
target_link_libraries(${CMAKE_THREAD_LIBS_INIT})
I want to extend this topic/answers with the following. As someone mentioned, this auto-generated AssemblyInfo can be an obstacle for the external tools. In my case, using FinalBuilder, I had an issue that AssemblyInfo wasn't getting updated by build action. Apparently, FinalBuilder relies on ~proj
file to find location of the AssemblyInfo. I thought, it was looking anywhere under project folder. No. So, changing this
<PropertyGroup>
<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
</PropertyGroup>
did only half the job, it allowed custom assembly info if built by VS IDE/MS Build. But I needed FinalBuilder do it too without manual manipulations to assembly info file. I needed to satisfy all programs, MSBuild/VS and FinalBuilder.
I solved this by adding an entry to the existing ItemGroup
<ItemGroup>
<Compile Remove="Common\**" />
<Content Remove="Common\**" />
<EmbeddedResource Remove="Common\**" />
<None Remove="Common\**" />
<!-- new added item -->
<None Include="Properties\AssemblyInfo.cs" />
</ItemGroup>
Now, having this item, FinalBuilder finds location of AssemblyInfo and modifies the file. While action None
allows MSBuild/DevEnv ignore this entry and no longer report an error based on Compile
action that usually comes with Assembly Info entry in proj
files.
C:\Program Files\dotnet\sdk\2.0.2\Sdks\Microsoft.NET.Sdk\build\Microsoft.NET.Sdk.DefaultItems.targets(263,5): error : Duplicate 'Compile' items were included. The .NET SDK includes 'Compile' items from your project directory by default. You can either remove these items from your project file, or set the 'EnableDefaultCompileItems' property to 'false' if you want to explicitly include them in your project file. For more information, see https://aka.ms/sdkimplicititems. The duplicate items were: 'AssemblyInfo.cs'
One .Net build with x86/x64 Dependencies
While all other answers give you a solution to make different Builds according to the platform, I give you an option to only have the "AnyCPU" configuration and make a build that works with your x86 and x64 dlls.
You have to write some plumbing code for this.
Resolution of correct x86/x64-dlls at runtime
Steps:
<ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>None</ResolveAssemblyWarnOrErrorOnTargetArchitectureMismatch>
Add this postbuild script to your startup project, use and modify the paths of this script sp that it copies all your x86/x64 dlls in corresponding subfolders of your build bin\x86\ bin\x64\
xcopy /E /H /R /Y /I /D $(SolutionDir)\YourPathToX86Dlls $(TargetDir)\x86
xcopy /E /H /R /Y /I /D $(SolutionDir)\YourPathToX64Dlls $(TargetDir)\x64
--> When you would start application now, you get an exception that the assembly could not be found.
Register the AssemblyResolve event right at the beginning of your application entry point
AppDomain.CurrentDomain.AssemblyResolve += TryResolveArchitectureDependency;
withthis method:
/// <summary>
/// Event Handler for AppDomain.CurrentDomain.AssemblyResolve
/// </summary>
/// <param name="sender">The app domain</param>
/// <param name="resolveEventArgs">The resolve event args</param>
/// <returns>The architecture dependent assembly</returns>
public static Assembly TryResolveArchitectureDependency(object sender, ResolveEventArgs resolveEventArgs)
{
var dllName = resolveEventArgs.Name.Substring(0, resolveEventArgs.Name.IndexOf(","));
var anyCpuAssemblyPath = $".\\{dllName}.dll";
var architectureName = System.Environment.Is64BitProcess ? "x64" : "x86";
var assemblyPath = $".\\{architectureName}\\{dllName}.dll";
if (File.Exists(assemblyPath))
{
return Assembly.LoadFrom(assemblyPath);
}
return null;
}
Benefits:
Drawbacks: - No errors at compile time when x86/x64 dlls do not match. - You should still run test in both modes!
Optionally create a second executable that is exclusive for x64 architecture with Corflags.exe in postbuild script
Other Variants to try out: - You don't need the AssemblyResolve event handler if you assure that the right dlls are copied to your binary folder at start (Evaluate Process architecture -> move corresponding dlls from x64/x86 to bin folder and back.) - In Installer evaluate architecture and delete binaries for wrong architecture and move the right ones to the bin folder.
Go to
if it doesnt work this can help you:
https://www.jetbrains.com/help/pycharm/installing-uninstalling-and-upgrading-packages.html
IMHO, it's a matter of personal style and opinion.
In olden days, I didn't put that newline. A character saved means more speed through that 14.4K modem.
Later, I put that newline so that it's easier to select the final line using shift+downarrow.
No, there's no true equivalent of typedef. You can use 'using' directives within one file, e.g.
using CustomerList = System.Collections.Generic.List<Customer>;
but that will only impact that source file. In C and C++, my experience is that typedef
is usually used within .h files which are included widely - so a single typedef
can be used over a whole project. That ability does not exist in C#, because there's no #include
functionality in C# that would allow you to include the using
directives from one file in another.
Fortunately, the example you give does have a fix - implicit method group conversion. You can change your event subscription line to just:
gcInt.MyEvent += gcInt_MyEvent;
:)
Update: In the past few years the landscape has changed drastically. You can now reliably use querySelector
and querySelectorAll
, see Wojtek's answer for how to do this.
There's no need for a jQuery dependency now. If you're using jQuery, great...if you're not, you need not rely it on just for selecting elements by attributes anymore.
There's not a very short way to do this in vanilla javascript, but there are some solutions available.
You do something like this, looping through elements and checking the attribute
If a library like jQuery is an option, you can do it a bit easier, like this:
$("[myAttribute=value]")
If the value isn't a valid CSS identifier (it has spaces or punctuation in it, etc.), you need quotes around the value (they can be single or double):
$("[myAttribute='my value']")
You can also do start-with
, ends-with
, contains
, etc...there are several options for the attribute selector.
I agree with the last answer.But there is another way to solve this problem.You can download the package named future,such as pip install future.And in your .py file input this "from past.builtins import xrange".This method is for the situation that there are many xranges in your file.
Why don't you set both Background & BorderBrush
by same brush
<Style TargetType="{x:Type Button}" >
<Setter Property="Background" Value="{StaticResource marginBackGround}"></Setter>
<Setter Property="BorderBrush" Value="{StaticResource marginBackGround}"></Setter>
</Style>
<LinearGradientBrush x:Key="marginBackGround" EndPoint=".5,1" StartPoint="0.5,0">
<GradientStop Color="#EE82EE" Offset="0"/>
<GradientStop Color="#7B30B6" Offset="0.5"/>
<GradientStop Color="#510088" Offset="0.5"/>
<GradientStop Color="#76209B" Offset="0.9"/>
<GradientStop Color="#C750B9" Offset="1"/>
</LinearGradientBrush>
Wipe Data
and restart the virtual device again fix the issue in my case.
Nathan Lee's answer is perfect. I just wanted to add something about position:absolute;
. If you wanted to use position:absolute;
like you had in your code, you have to think of it as pushing it away from one side of the page.
For example, if you wanted your div
to be somewhere in the bottom, you would have to use position:absolute; top:500px;
. That would push your div
500px from the top of the page. Same rule applies for all other directions.
You could do -
DELIMITER = '\t'
lines = list()
for line in open('file.txt'):
lines.append(line.strip().split(DELIMITER))
The lines
has got all the contents of your file.
One could also use list comprehensions to make this more compact.
lines = [ line.strip().split(DELIMITER) for line in open('file.txt')]
I struggled for a while about this. Stupid rule for __init__
. It is two "_" together to be "__"
This error can occur when an application makes a new connection for every database interaction or the connections are not closed properly. One of the free tools to monitor and confirm this is Oracle Sql developer (although this is not the only tool you can use to monitor DB sessions).
you can download the tool from oracle site Sql Developer
here is a screenshot of how to monitor you sessions. (if you see many sessions piling up for your application user during when you see the ORA-12514 error then it's a good indication that you may have connection pool problem).
I thought I'd do a comparison of Martijn's answer and svick's answer...
The following program returns the following results:
Testing with exception: 2430985 ticks
Testing with reflection: 155570 ticks
void Main()
{
var random = new Random(Environment.TickCount);
dynamic test = new Test();
var sw = new Stopwatch();
sw.Start();
for (int i = 0; i < 100000; i++)
{
TestWithException(test, FlipCoin(random));
}
sw.Stop();
Console.WriteLine("Testing with exception: " + sw.ElapsedTicks.ToString() + " ticks");
sw.Restart();
for (int i = 0; i < 100000; i++)
{
TestWithReflection(test, FlipCoin(random));
}
sw.Stop();
Console.WriteLine("Testing with reflection: " + sw.ElapsedTicks.ToString() + " ticks");
}
class Test
{
public bool Exists { get { return true; } }
}
bool FlipCoin(Random random)
{
return random.Next(2) == 0;
}
bool TestWithException(dynamic d, bool useExisting)
{
try
{
bool result = useExisting ? d.Exists : d.DoesntExist;
return true;
}
catch (Exception)
{
return false;
}
}
bool TestWithReflection(dynamic d, bool useExisting)
{
Type type = d.GetType();
return type.GetProperties().Any(p => p.Name.Equals(useExisting ? "Exists" : "DoesntExist"));
}
As a result I'd suggest using reflection. See below.
Responding to bland's comment:
Ratios are reflection:exception
ticks for 100000 iterations:
Fails 1/1: - 1:43 ticks
Fails 1/2: - 1:22 ticks
Fails 1/3: - 1:14 ticks
Fails 1/5: - 1:9 ticks
Fails 1/7: - 1:7 ticks
Fails 1/13: - 1:4 ticks
Fails 1/17: - 1:3 ticks
Fails 1/23: - 1:2 ticks
...
Fails 1/43: - 1:2 ticks
Fails 1/47: - 1:1 ticks
...fair enough - if you expect it to fail with a probability with less than ~1/47, then go for exception.
The above assumes that you're running GetProperties()
each time. You may be able to speed up the process by caching the result of GetProperties()
for each type in a dictionary or similar. This may help if you're checking against the same set of types over and again.
Just to complete JJC answer, in python 3.5.3 the behavior is correct if you use hashlib this way:
$ python3 -c '
import hashlib
hash_object = hashlib.sha256(b"Caroline")
hex_dig = hash_object.hexdigest()
print(hex_dig)
'
739061d73d65dcdeb755aa28da4fea16a02b9c99b4c2735f2ebfa016f3e7fded
$ python3 -c '
import hashlib
hash_object = hashlib.sha256(b"Caroline")
hex_dig = hash_object.hexdigest()
print(hex_dig)
'
739061d73d65dcdeb755aa28da4fea16a02b9c99b4c2735f2ebfa016f3e7fded
$ python3 -V
Python 3.5.3
Use snprintf
- it is standard an available in every compilator. Query it for the size needed by calling it with NULL, 0
parameters. Allocate one character more for null at the end.
int length = snprintf( NULL, 0, "%d", x );
char* str = malloc( length + 1 );
snprintf( str, length + 1, "%d", x );
...
free(str);
You could use flatMap. It can filter and map in one.
$scope.appIds = $scope.applicationsHere.flatMap(obj => obj.selected ? obj.id : [])
If you'd like a list of owners, and the count of the number of tables per owner, try:
SELECT distinct owner, count(table_name) FROM dba_tables GROUP BY owner;
//This prototype function allows you to remove even array from array
Array.prototype.remove = function(x) {
var i;
for(i in this){
if(this[i].toString() == x.toString()){
this.splice(i,1)
}
}
}
Example of using
var arr = [1,2,[1,1], 'abc'];
arr.remove([1,1]);
console.log(arr) //[1, 2, 'abc']
var arr = [1,2,[1,1], 'abc'];
arr.remove(1);
console.log(arr) //[2, [1,1], 'abc']
var arr = [1,2,[1,1], 'abc'];
arr.remove('abc');
console.log(arr) //[1, 2, [1,1]]
To use this prototype function you need to paste it in your code. Then you can apply it to any array with 'dot notation':
someArr.remove('elem1')
Add text-align:center;display:block;
to the css class. Better than setting a style on the controls themselves. If you want to change it you do so in one place.
Android's default system path of your application database is /data/data/YOUR_PACKAGE/databases/YOUR_DB_NAME
Your logcat clearly says Failed to open database '/data/data/com.example.quotes/databasesQuotesdb'
Which means there is no file present on the given path or You have given the wrong path for the data file. As I can see there should be "/" after databases folder.
Your DB_PATH variable should end with a "/".
private static String DB_PATH = "/data/data/com.example.quotes/databases/";
Your correct path will be now "/data/data/com.example.quotes/databases/Quotesdb"
In Windows open the Run window (Win + R):
C:\Program Files (x86)\Google\Chrome\Application\chrome.exe --allow-running-insecure-content
In OS-X Terminal.app
run the following command ⌘+space:
open /Applications/Google\ Chrome.app --args --allow-running-insecure-content
Note:
You seem to be able to add the argument --allow-running-insecure-content
to bypass this for development. But its not a recommended solution.
When we format any float value, that means we are changing its data type to string. So when we apply the formatting on any amount/float value then it will set with all possible notations like dot, comma, etc. For example
(float)0.00 => (string)'0.00',
(float)10000.56 => (string) '10,000.56'
(float)5000000.20=> (string) '5,000,000.20'
So, logically it's not possible to keep the float datatype after formatting.
Just adding another possibility as it might help someone that's trying to both iterate over an array AND maintain a count. For example, the code below goes through an array named items
and only displays the first 3 items. Notice that the each
and the if
are native jade and don't need a hyphen.
ul
- var count = 0;
each item in items
if count < 3
li= item.name
- count++;
https://groups.google.com/forum/#!topic/google-appengine-stackoverflow/QZGJg2tlfA4
From what I've found online, this is a bug introduced in JDK 1.7.0_45. I've read it will be fixed in the next release of Java, but it's not out yet. Supposedly, it was fixed in 1.7.0_60b01, but I can't find where to download it and 1.7.0_60b02 re-introduces the bug.
I managed to get around the problem by reverting back to JDK 1.7.0_25. Probably not the solution you wanted, but it's the only way I've been able to get it working. Don't forget add JDK 1.7.0_25 in Eclipse after installing the JDK.
Please DO NOT REPLY directly to this email but go to StackOverflow: Class JavaLaunchHelper is implemented in both. One of the two will be used. Which one is undefined
Using a simple loop is the most efficient way of doing this.
boolean useLoop(String[] arr, String targetValue) {
for(String s: arr){
if(s.equals(targetValue))
return true;
}
return false;
}
Courtesy to Programcreek
Here 2 options for subsetting:
Using subset
from base R:
library(ggplot2)
ggplot(subset(dat,ID %in% c("P1" , "P3"))) +
geom_line(aes(Value1, Value2, group=ID, colour=ID))
Using subset
the argument of geom_line
(Note I am using plyr
package to use the special .
function).
library(plyr)
ggplot(data=dat)+
geom_line(aes(Value1, Value2, group=ID, colour=ID),
,subset = .(ID %in% c("P1" , "P3")))
You can also use the complementary subsetting:
subset(dat,ID != "P2")
From comments:
But, this code never stops (because of integer overflow) !?! Yves Daoust
For many numbers it will not overflow.
If it will overflow - for one of those unlucky initial seeds, the overflown number will very likely converge toward 1 without another overflow.
Still this poses interesting question, is there some overflow-cyclic seed number?
Any simple final converging series starts with power of two value (obvious enough?).
2^64 will overflow to zero, which is undefined infinite loop according to algorithm (ends only with 1), but the most optimal solution in answer will finish due to shr rax
producing ZF=1.
Can we produce 2^64? If the starting number is 0x5555555555555555
, it's odd number, next number is then 3n+1, which is 0xFFFFFFFFFFFFFFFF + 1
= 0
. Theoretically in undefined state of algorithm, but the optimized answer of johnfound will recover by exiting on ZF=1. The cmp rax,1
of Peter Cordes will end in infinite loop (QED variant 1, "cheapo" through undefined 0
number).
How about some more complex number, which will create cycle without 0
?
Frankly, I'm not sure, my Math theory is too hazy to get any serious idea, how to deal with it in serious way. But intuitively I would say the series will converge to 1 for every number : 0 < number, as the 3n+1 formula will slowly turn every non-2 prime factor of original number (or intermediate) into some power of 2, sooner or later. So we don't need to worry about infinite loop for original series, only overflow can hamper us.
So I just put few numbers into sheet and took a look on 8 bit truncated numbers.
There are three values overflowing to 0
: 227
, 170
and 85
(85
going directly to 0
, other two progressing toward 85
).
But there's no value creating cyclic overflow seed.
Funnily enough I did a check, which is the first number to suffer from 8 bit truncation, and already 27
is affected! It does reach value 9232
in proper non-truncated series (first truncated value is 322
in 12th step), and the maximum value reached for any of the 2-255 input numbers in non-truncated way is 13120
(for the 255
itself), maximum number of steps to converge to 1
is about 128
(+-2, not sure if "1" is to count, etc...).
Interestingly enough (for me) the number 9232
is maximum for many other source numbers, what's so special about it? :-O 9232
= 0x2410
... hmmm.. no idea.
Unfortunately I can't get any deep grasp of this series, why does it converge and what are the implications of truncating them to k bits, but with cmp number,1
terminating condition it's certainly possible to put the algorithm into infinite loop with particular input value ending as 0
after truncation.
But the value 27
overflowing for 8 bit case is sort of alerting, this looks like if you count the number of steps to reach value 1
, you will get wrong result for majority of numbers from the total k-bit set of integers. For the 8 bit integers the 146 numbers out of 256 have affected series by truncation (some of them may still hit the correct number of steps by accident maybe, I'm too lazy to check).
For my Node Application,
"facebook": {
"clientID" : "##############",
"clientSecret": "####################",
"callbackURL": "/auth/facebook/callback/"
}
put callback Url relative
My OAuth redirect URIs as follows
Make Sure "/" at the end of Facebook auth redirect URI
These setups worked for me.
Try adding below code in build.gradle, it worked for me -
compileSdkVersion 23
buildToolsVersion '23.0.1'
defaultConfig {
multiDexEnabled true
}
const img = '../../img/splash/splash_bg.png';
<ImageBackground source={{ uri: img }} style={styles.backgroundImage} >
</ImageBackground>
This worked for me. Reference to RN docs can be found here.I wrote mine by reading this- https://facebook.github.io/react-native/docs/images.html#background-image-via-nesting
Your file has Windows line endings, which is confusing Linux.
Remove the spurious CR characters. You can do it with the following command:
$ sed -i -e 's/\r$//' setup.sh
If you want to push your current detached HEAD (check git log
before), try:
git push origin HEAD:master
to send your detached HEAD into master branch at origin. If your push gets rejected, try git pull origin master
first to get the changes from origin. If you don't care about the changes from origin and it's rejected, because you did some intentional rebase and you want to replace origin/master with your currently detached branch - then you may force it (-f
). In case you lost some access to previous commits, you can always run git reflog
to see the history from all branches.
To get back on a master branch, while keeping the changes, try the following commands:
git rebase HEAD master
git checkout master
A Session object is basically an ongoing transaction of changes to a database (update, insert, delete). These operations aren't persisted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any uncommitted changes within are lost).
The session object registers transaction operations with session.add()
, but doesn't yet communicate them to the database until session.flush()
is called.
session.flush()
communicates a series of operations to the database (insert, update, delete). The database maintains them as pending operations in a transaction. The changes aren't persisted permanently to disk, or visible to other transactions until the database receives a COMMIT for the current transaction (which is what session.commit()
does).
session.commit()
commits (persists) those changes to the database.
flush()
is always called as part of a call to commit()
(1).
When you use a Session object to query the database, the query will return results both from the database and from the flushed parts of the uncommitted transaction it holds. By default, Session objects autoflush
their operations, but this can be disabled.
Hopefully this example will make this clearer:
#---
s = Session()
s.add(Foo('A')) # The Foo('A') object has been added to the session.
# It has not been committed to the database yet,
# but is returned as part of a query.
print 1, s.query(Foo).all()
s.commit()
#---
s2 = Session()
s2.autoflush = False
s2.add(Foo('B'))
print 2, s2.query(Foo).all() # The Foo('B') object is *not* returned
# as part of this query because it hasn't
# been flushed yet.
s2.flush() # Now, Foo('B') is in the same state as
# Foo('A') was above.
print 3, s2.query(Foo).all()
s2.rollback() # Foo('B') has not been committed, and rolling
# back the session's transaction removes it
# from the session.
print 4, s2.query(Foo).all()
#---
Output:
1 [<Foo('A')>]
2 [<Foo('A')>]
3 [<Foo('A')>, <Foo('B')>]
4 [<Foo('A')>]
I couldn't find any solutions to this so I added a copy of the nuget.exe and a powershell script to the root directory of the solution called prebuild.ps1 with the following content.
$nugetexe = 'nuget.exe'
$args = 'restore SOLUTION_NAME_HERE.sln'
Start-Process $nugetexe -ArgumentList $args
I called this powershell script in my build in the Pre-Build script path
Let's say that you have class A
that contain class B
When you want to call some function of class B
outside class A
you will simply obtain a pointer to this class and you can do whatever you want and it will also change context of class B
in your class A
But be careful with dynamic object
Always use double quotes when using a variable inside a string and backslash any other double quotes except the starting and ending ones. You could also use the brackets like below so it's easier to find your variables inside the strings and make them look cleaner.
$var = 'my variable';
echo "I love ${var}";
or
$var = 'my variable';
echo "I love {$var}";
Above would return the following: I love my variable
I suspect you don't actually have that problem - I suspect you've really got:
double a = callSomeFunction();
// Examine a in the debugger or via logging, and decide it's 3669.0
// Now cast
int b = (int) a;
// Now a is 3668
What makes me say that is that although it's true that many decimal values cannot be stored exactly in float
or double
, that doesn't hold for integers of this kind of magnitude. They can very easily be exactly represented in binary floating point form. (Very large integers can't always be exactly represented, but we're not dealing with a very large integer here.)
I strongly suspect that your double
value is actually slightly less than 3669.0, but it's being displayed to you as 3669.0 by whatever diagnostic device you're using. The conversion to an integer value just performs truncation, not rounding - hence the issue.
Assuming your double
type is an IEEE-754 64-bit type, the largest value which is less than 3669.0 is exactly
3668.99999999999954525264911353588104248046875
So if you're using any diagnostic approach where that value would be shown as 3669.0, then it's quite possible (probable, I'd say) that this is what's happening.
If you want this in config, you can set npm config like so:
npm config set prefix "$(pwd)/vendor/node_modules"
or
npm config set prefix "$HOME/vendor/node_modules"
Check your config with
npm config ls -l
Or as @pje says and use the --prefix
flag
In SQL server 2005 new datatypes were introduced: varchar(max)
and nvarchar(max)
They have the advantages of the old text type: they can contain op to 2GB of data, but they also have most of the advantages of varchar
and nvarchar
. Among these advantages are the ability to use string manipulation functions such as substring().
Also, varchar(max) is stored in the table's (disk/memory) space while the size is below 8Kb. Only when you place more data in the field, it's is stored out of the table's space. Data stored in the table's space is (usually) retrieved quicker.
In short, never use Text, as there is a better alternative: (n)varchar(max). And only use varchar(max) when a regular varchar is not big enough, ie if you expect teh string that you're going to store will exceed 8000 characters.
As was noted, you can use SUBSTRING on the TEXT datatype,but only as long the TEXT fields contains less than 8000 characters.
Determine if property is existing (but is not a falsy value):
if (typeof query !== 'undefined' && query !== null){
doStuff();
}
Usually using
if (query){
doStuff();
}
is sufficient. Please note that:
if (!query){
doStuff();
}
doStuff() will execute even if query was an existing variable with falsy value (0, false, undefined or null)
Btw, there's a sexy coffeescript way of doing this:
if object?.property? then doStuff()
which compiles to:
if ((typeof object !== "undefined" && object !== null ? object.property : void 0) != null)
{
doStuff();
}
The other answers overcomplicate it for me.
let animals = {
a: 'dog',
b: 'cat',
c: 'bird'
}
let lastKey = Object.keys(animals).pop()
let lastValue = animals[Object.keys(animals).pop()]
Expression you are looking for may be:
...
return any( isinstance(e, list) for e in my_list )
Testing:
>>> my_list = [1,2]
>>> any( isinstance(e, list) for e in my_list )
False
>>> my_list = [1,2, [3,4,5]]
>>> any( isinstance(e, list) for e in my_list )
True
>>>
To test an android apps in a real device with Android Studio, You must keep two things in mind
Now , let me tell you how you can enable USB debugging on your android phone:
Now let me tell you how you can download the driver on your Windows PC:
The HTML specification never specifies any content formats. That's not its job. There's plenty of standards organizations that are more qualified than the W3C to specify video formats.
That's what content negotiation is for.
<img>
element.<style>
element.<script>
element.<object>
and embed
elements.<audio>
element.Why should it specify one for the <video>
element?
$('#input-field-id').val($('#input-field-id').val() + 'more text');
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<input id="input-field-id" />
_x000D_
A reason for this problem (which is even harder to detect than the issue with char* str = "some string"
- which others have explained) is when you are using constexpr
.
constexpr char* str = "some string";
It seems that it would behave similar to const char* str
, and so would not cause a warning, as it occurs before char*
, but it instead behaves as char* const str
.
Constant pointer, and pointer to a constant. The difference between const char* str
, and char* const str
can be explained as follows.
const char* str
: Declare str to be a pointer to a const char. This means that the data to which this pointer is pointing to it constant. The pointer can be modified, but any attempt to modify the data would throw a compilation error.
str++ ;
: VALID. We are modifying the pointer, and not the data being pointed to.*str = 'a';
: INVALID. We are trying to modify the data being pointed to.char* const str
: Declare str to be a const pointer to char. This means that point is now constant, but the data being pointed too is not. The pointer cannot be modified but we can modify the data using the pointer.
str++ ;
: INVALID. We are trying to modify the pointer variable, which is a constant.*str = 'a';
: VALID. We are trying to modify the data being pointed to. In our case this will not cause a compilation error, but will cause a runtime error, as the string will most probably will go into a read only section of the compiled binary. This statement would make sense if we had dynamically allocated memory, eg. char* const str = new char[5];
.const char* const str
: Declare str to be a const pointer to a const char. In this case we can neither modify the pointer, nor the data being pointed to.
str++ ;
: INVALID. We are trying to modify the pointer variable, which is a constant.*str = 'a';
: INVALID. We are trying to modify the data pointed by this pointer, which is also constant.In my case the issue was that I was expecting constexpr char* str
to behave as const char* str
, and not char* const str
, since visually it seems closer to the former.
Also, the warning generated for constexpr char* str = "some string"
is slightly different from char* str = "some string"
.
constexpr char* str = "some string"
: ISO C++11 does not allow conversion from string literal to 'char *const'
char* str = "some string"
: ISO C++11 does not allow conversion from string literal to 'char *'
.You can use C gibberish ? English converter to convert C
declarations to easily understandable English statements, and vice versa. This is a C
only tool, and thus wont support things (like constexpr) which are exclusive to C++
.
To speed up loading modules, Python caches the compiled content of modules in .pyc.
CPython compiles its source code into "byte code", and for performance reasons, it caches this byte code on the file system whenever the source file has changes. This makes loading of Python modules much faster because the compilation phase can be bypassed. When your source file is foo.py , CPython caches the byte code in a foo.pyc file right next to the source.
In python3, Python's import machinery is extended to write and search for byte code cache files in a single directory inside every Python package directory. This directory will be called __pycache__ .
Here is a flow chart describing how modules are loaded:
For more information:
ref:PEP3147
ref:“Compiled” Python files
For the first example and base on the django's doc
It will always return the second list, indeed a non empty list is see as a True value for Python thus python return the 'last' True value so the second list
In [74]: mylist1 = [False]
In [75]: mylist2 = [False, True, False, True, False]
In [76]: mylist1 and mylist2
Out[76]: [False, True, False, True, False]
In [77]: mylist2 and mylist1
Out[77]: [False]
[Edit]
If you are doing this to trim the beginning of a log file, you can avoid loading the entire file by doing something like this:
// count the number of lines in the file
int count = 0;
using (var sr = new StreamReader("file.txt"))
{
while (sr.ReadLine() != null)
count++;
}
// skip first (LOG_MAX - count) lines
count = LOG_MAX - count;
using (var sr = new StreamReader("file.txt"))
using (var sw = new StreamWriter("output.txt"))
{
// skip several lines
while (count > 0 && sr.ReadLine() != null)
count--;
// continue copying
string line = "";
while ((line = sr.ReadLine()) != null)
sw.WriteLine(line);
}
First of all, since File.ReadAllLines
loads the entire file into a string array (string[]
), copying to a list is redundant.
Second, you must understand that a List
is implemented using a dynamic array under the hood. This means that CLR will need to allocate and copy several arrays until it can accommodate the entire file. Since the file is already on disk, you might consider trading speed for memory and working on disk data directly, or processing it in smaller chunks.
If you need to load it entirely in memory, at least try to leave in an array:
string[] lines = File.ReadAllLines("file.txt");
If it really needs to be a List
, load lines one by one:
List<string> lines = new List<string>();
using (var sr = new StreamReader("file.txt"))
{
while (sr.Peek() >= 0)
lines.Add(sr.ReadLine());
}
Note: List<T>
has a constructor which accepts a capacity parameter. If you know the number of lines in advance, you can prevent multiple allocations by preallocating the array in advance:
List<string> lines = new List<string>(NUMBER_OF_LINES);
Even better, avoid storing the entire file in memory and process it "on the fly":
using (var sr = new StreamReader("file.txt"))
{
string line;
while ((line = sr.ReadLine()) != null)
{
// process the file line by line
}
}
On Single Server, MongoDb would not be any faster than mysql MyISAM on both read and write, given table/doc
sizes are small 1 GB to 20 GB.
MonoDB will be faster on Parallel Reduce on Multi-Node clusters, where Mysql can NOT scale horizontally.
string url = "http://www.example.com/mypage.aspx?myvalue1=hello&myvalue2=goodbye";
string path = url.split('?')[0];
The usual command line ping
tool uses ICMP Echo, but it's true that other protocols can also be used, and they're useful in debugging different kinds of network problems.
I can remember at least arping
(for testing ARP requests) and tcping
(which tries to establish a TCP connection and immediately closes it, it can be used to check if traffic reaches a certain port on a host) off the top of my head, but I'm sure there are others aswell.
You would want to amend the commit and then do a force push which will update the branch with the PR.
Here's how I recommend you do this:
git reset --soft HEAD^
or if it's a different commit, you would want to replace 'HEAD^' with the commit id)git commit -a -c ORIG_HEAD
The now that your branch has been updated, the Pull Request will include your changes.
Here's a link to Gits documentation where they have a pretty good example under Undo a commit and redo.
You can use pure Javascript to achieve this:
var test = true;
if (typeof test === 'boolean')
console.log('test is a boolean!');
As Pickle has some security concerns and is slow (source), I would go for JSON, as it is fast, built-in, human-readable, and interchangeable:
import json
data = {'another_dict': {'a': 0, 'b': 1}, 'a_list': [0, 1, 2, 3]}
# e.g. file = './data.json'
with open(file, 'w') as f:
json.dump(data, f)
Reading is similar easy:
with open(file, 'r') as f:
data = json.load(f)
This is similar to this answer, but implements the file handling correctly.
It seems that you are trying to get 5 items out of a collection with 5 items. Looking at your code, it seems you're starting at the second value in your collection at position 1. Collections are zero-based, so you should start with the item at index 0. Try this:
TextBox box1 = (TextBox)Gridview1.Rows[i].Cells[0].FindControl("txt_type");
TextBox box2 = (TextBox)Gridview1.Rows[i].Cells[1].FindControl("txt_total");
TextBox box3 = (TextBox)Gridview1.Rows[i].Cells[2].FindControl("txt_max");
TextBox box4 = (TextBox)Gridview1.Rows[i].Cells[3].FindControl("txt_min");
TextBox box5 = (TextBox)Gridview1.Rows[i].Cells[4].FindControl("txt_rate");
cdate(Format([Datum im Format DDMMYYYY],'##/##/####') )
converts string without punctuation characters into date
Make sure that both projects have same target framework version here: right click on project -> properties -> application (tab) -> target framework
Also, make sure that the project "logger" (which you want to include in the main project) has the output type "Class Library" in: right click on project -> properties -> application (tab) -> output type
Finally, Rebuild the solution.
I had the same problem when I was trying to work with a basic spring boot app. I tried to use the latest spring-boot version from the official spring-boot site.
As on today, the latest version is 1.5.4.RELEASE. But I keep getting compilation issues on my eclipse IDE irrespective of multiple cleanups to the project. I lowered the version of spring-boot to 1.5.3.RELEASE and it simply worked !! Some of my earlier projects were using the old version which drove me to try this option.
Use this form:
=(B0+4)/$A$0
The $
tells excel not to adjust that address while pasting the formula into new cells.
Since you are dragging across rows, you really only need to freeze the row part:
=(B0+4)/A$0
Commenters helpfully pointed out that you can toggle relative addressing for a formula in the currently selected cells with these keyboard shortcuts:
In my case, this error message was displayed when I tried downloading an app from Google Play Store using a VPN. The download only worked when I disabled the VPN. Using a VPN, downloads were only working for the apps I downloaded previously.
This looks like a censorship from Google, which is really bad for the user experience and I hope they will stop this.
Fortunately I don't use Android on my smartphone, it was on my Linux laptop using Anbox or Android x86 in VirtualBox.
By Default the InternetExplorerDriver listens on port "5555". Change your huburl to match that. you can look on the cmd box window to confirm.
Check out JGraphT for a very simple and powerful Java graph library that is pretty well done and, to allay any confusion, is different than JGraph. Some sample code:
UndirectedGraph<String, DefaultEdge> g =
new SimpleGraph<String, DefaultEdge>(DefaultEdge.class);
String v1 = "v1";
String v2 = "v2";
String v3 = "v3";
String v4 = "v4";
// add the vertices
g.addVertex(v1);
g.addVertex(v2);
g.addVertex(v3);
g.addVertex(v4);
// add edges to create a circuit
g.addEdge(v1, v2);
g.addEdge(v2, v3);
g.addEdge(v3, v4);
g.addEdge(v4, v1);
Simple solution is
@ContextConfiguration(locations = { "file:src/main/webapp/WEB-INF/applicationContext.xml" })
from spring forum
I just discovered a workaround: You can make your local machine accessible by using http://localtunnel.com . You'll need to (temporarily) change some URLs used in your app code / html so links point to the temporary domain, but at least facebook can reach your machine.
A little more reusable function:
beginsWith = function(needle, haystack){
return (haystack.substr(0, needle.length) == needle);
}
This may support
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default5.aspx.cs" Inherits="PRODUCTION_Default5" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
<script type="text/javascript">
function max()
{
window.open("", "_self", "fullscreen=yes, scrollbars=auto");
}
</script>
</head>
<body onload="max()">
<form id="form1" runat="server">
<div>
This is Test Page
</div>
</form>
</body>
</html>
You can easily achieve what you want using the appendix
package. Here's a sample file that shows you how. The key is the titletoc
option when calling the package. It takes whatever value you've defined in \appendixname
and the default value is Appendix
.
\documentclass{report}
\usepackage[titletoc]{appendix}
\begin{document}
\tableofcontents
\chapter{Lorem ipsum}
\section{Dolor sit amet}
\begin{appendices}
\chapter{Consectetur adipiscing elit}
\chapter{Mauris euismod}
\end{appendices}
\end{document}
The output looks like
if you have an array of elements and you want to display the elements you just use ...arrayemaments and it will iterate over all the elements
I had the same problem, and the little star means that the kernel is still working. So the program is trapped in an endless while loop. So you only have to the rewrite the code
You could use:
echo date('F Y', strtotime('20130814'));
which should do the trick.
Edit: You have a date which is in a string format. To be able to format it nicelt, you first need to change it into a date itself - which is where strtotime comes in. It is a fantastic feature that converts almost any plausible expression of a date into a date itself. Then we can actually use the date() function to format the output into what you want.
Goto my blog : retrofit with kotlin
the link below explains everything step by step.
http://loopj.com/android-async-http/
Here are sample apps:
Create a class :
public class HttpUtils {
private static final String BASE_URL = "http://api.twitter.com/1/";
private static AsyncHttpClient client = new AsyncHttpClient();
public static void get(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.get(getAbsoluteUrl(url), params, responseHandler);
}
public static void post(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.post(getAbsoluteUrl(url), params, responseHandler);
}
public static void getByUrl(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.get(url, params, responseHandler);
}
public static void postByUrl(String url, RequestParams params, AsyncHttpResponseHandler responseHandler) {
client.post(url, params, responseHandler);
}
private static String getAbsoluteUrl(String relativeUrl) {
return BASE_URL + relativeUrl;
}
}
Call Method :
RequestParams rp = new RequestParams();
rp.add("username", "aaa"); rp.add("password", "aaa@123");
HttpUtils.post(AppConstant.URL_FEED, rp, new JsonHttpResponseHandler() {
@Override
public void onSuccess(int statusCode, Header[] headers, JSONObject response) {
// If the response is JSONObject instead of expected JSONArray
Log.d("asd", "---------------- this is response : " + response);
try {
JSONObject serverResp = new JSONObject(response.toString());
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
@Override
public void onSuccess(int statusCode, Header[] headers, JSONArray timeline) {
// Pull out the first event on the public timeline
}
});
Please grant internet permission in your manifest file.
<uses-permission android:name="android.permission.INTERNET" />
you can add compile 'com.loopj.android:android-async-http:1.4.9'
for Header[]
and compile 'org.json:json:20160212'
for JSONObject
in build.gradle file if required.
Try that:
if(WIN32)
set(ADDITIONAL_LIBRARIES wsock32)
else()
set(ADDITIONAL_LIBRARIES "")
endif()
target_link_libraries(${PROJECT_NAME} bioutils ${ADDITIONAL_LIBRARIES})
You can find other useful variables here.
onchange
will work only if the value of the textbox changed compared to the value it had before, so for the first time it won't work because the state didn't change.
So it is better to use onblur
event or on submitting the form.
function checkTextField(field) {_x000D_
document.getElementById("error").innerText =_x000D_
(field.value === "") ? "Field is empty." : "Field is filled.";_x000D_
}
_x000D_
<input type="text" onblur="checkTextField(this);" />_x000D_
<p id="error"></p>
_x000D_
Sine you are new to html here are three ready to use examples on how to use CSS together with html. You can simply put them into a file, save it and open it up with the browser of your choice:
This one directly embeds your CSS style into your tags/elements. Generally this is not a very nice approach, because you should always separate the content/html from design.
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Hi, I'm bold!</title>
</head>
<body>
<p style="font-weight:bold;">Hi, I'm very bold!</p>
</body>
</html>
The next one is a more general approach and works on all "p" (stands for paragraph) tags in your document and additionaly makes them HUGE. Btw. Google uses this approach on his search:
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Hi, I'm bold!</title>
<style type="text/css">
p {
font-weight:bold;
font-size:26px;
}
</style>
</head>
<body>
<p>Hi, I'm very bold and HUGE!</p>
</body>
</html>
You probably will take a couple of days playing around with the first examples, however here is the last one. In this you finally fully seperate design (css) and content (html) from each other in two different files. stackoverflow takes this approach.
In one file you put all the CSS (call it 'hello_world.css'):
p {
font-weight:bold;
font-size:26px;
}
In another file you should put the html (call it 'hello_world.html'):
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="de">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Hi, I'm bold!</title>
<link rel="stylesheet" type="text/css" href="hello_world.css" />
</head>
<body>
<p>Hi, I'm very bold and HUGE!</p>
</body>
</html>
Hope this helps a little. To address specific elements in your document and not all tags you should make yourself familiar with the class
, id
and name
attributes. Have fun!
Here's a piece of code that checks whether a number is an integer or not, it works for both Python 2 and Python 3.
import sys
if sys.version < '3':
integer_types = (int, long,)
else:
integer_types = (int,)
isinstance(yourNumber, integer_types) # returns True if it's an integer
isinstance(yourNumber, float) # returns True if it's a float
Notice that Python 2 has both types int
and long
, while Python 3 has only type int
. Source.
If you want to check whether your number is a float
that represents an int
, do this
(isinstance(yourNumber, float) and (yourNumber).is_integer()) # True for 3.0
If you don't need to distinguish between int and float, and are ok with either, then ninjagecko's answer is the way to go
import numbers
isinstance(yourNumber, numbers.Real)
Try writting the lambda with the same conditions as the delegate. like this:
List<AnalysisObject> analysisObjects =
analysisObjectRepository.FindAll().Where(
(x =>
(x.ID == packageId)
|| (x.Parent != null && x.Parent.ID == packageId)
|| (x.Parent != null && x.Parent.Parent != null && x.Parent.Parent.ID == packageId)
).ToList();
You can export a certificate using Firefox, this site has instructions. Then you use keytool to add the certificate.
I think you need this ..
Dim n as Integer
For n = 5 to 17
msgbox cells(n,3) '--> sched waste
msgbox cells(n,4) '--> type of treatm
msgbox format(cells(n,5),"dd/MM/yyyy") '--> Lic exp
msgbox cells(n,6) '--> email col
Next
Did you verify that the control causing the post back has CausesValidation set to tru and that it does not have a validation group assigned to it?
I'm not sure what else might cause this behavior.
Instead of:
$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00' AND created<='{$end} 23:59:59' ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error());
while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
$result.="{$row['email']},";
$result.="\n";
echo $result;
}
Use:
$query = "SELECT * FROM customers WHERE created>='{$start} 00:00:00' AND created<='{$end} 23:59:59' ORDER BY id";
$select_c = mysql_query($query) or die(mysql_error());
while ($row = mysql_fetch_array($select_c, MYSQL_ASSOC))
{
echo implode(",", $row)."\n";
}
ps -axf | grep parent_pid
Above command prints respective processes generated from parent_pid
, hope it helps.
+++++++++++++++++++++++++++++++++++++++++++
root@root:~/chk_prgrm/lp#
parent...18685
child... 18686
root@root:~/chk_prgrm/lp# ps axf | grep frk
18685 pts/45 R 0:11 | \_ ./frk
18686 pts/45 R 0:11 | | \_ ./frk
18688 pts/45 S+ 0:00 | \_ grep frk
If the newline is expected to be at the end of the string, then:
if (!s.empty() && s[s.length()-1] == '\n') {
s.erase(s.length()-1);
}
If the string can contain many newlines anywhere in the string:
std::string::size_type i = 0;
while (i < s.length()) {
i = s.find('\n', i);
if (i == std::string:npos) {
break;
}
s.erase(i);
}
Move points into test:
def test():
points = 0
addpoint = raw_input ("type ""add"" to add a point")
...
or use global statement, but it is bad practice. But better way it move points to parameters:
def test(points=0):
addpoint = raw_input ("type ""add"" to add a point")
...
You should be able to use Windows "UNC" paths with robocopy. For example:
robocopy \\myServer\myFolder\myFile.txt \\myOtherServer\myOtherFolder
Robocopy has the ability to recover from certain types of network hiccups automatically.
Humm, what? ssh is not something built in to Windows like in most *nix cases.
You'd probably want to use Putty to begin with. And: http://kb.siteground.com/how_to_generate_an_ssh_key_on_windows_using_putty/
Along the lines of erik's response, you should also be able to calculate the ROC directly by comparing all possible pairs of values from pos.scores and neg.scores:
score.pairs <- merge(pos.scores, neg.scores)
names(score.pairs) <- c("pos.score", "neg.score")
sum(score.pairs$pos.score > score.pairs$neg.score) / nrow(score.pairs)
Certainly less efficient than the sample approach or the pROC::auc, but more stable than the former and requiring less installation than the latter.
Related: when I tried this it gave similar results to pROC's value, but not exactly the same (off by 0.02 or so); the result was closer to the sample approach with very high N. If anyone has ideas why that might be I'd be interested.
mysqldump -u (user) -p(passwd) -h (host_or_IP) database_to_backup > backup_file.sql
example:
mysqldump -u god -pheaven -h 10.0.10.10 accounting > accounting_20141209.sql
this would create sql backup file for the accounting database on server 10.0.10.10. Sometimes your error is seen when localhost is not in config. Designating ip of server may help.
Since MyClass
is a POD class type, those non-static data members will have indeterminate initial values when you create a non-static instance of MyClass
, so no, that is not a valid way to check if they have been initialized to a specific non-zero value ... you are basically assuming they will be zero-initialized, which is not going to be the case since you have not value-initialized them in a constructor.
If you want to zero-initialize your class's non-static data members, it would be best to create an initialization list and class-constructor. For example:
class MyClass
{
void SomeMethod();
char mCharacter;
double mDecimal;
public:
MyClass();
};
MyClass::MyClass(): mCharacter(0), mDecimal(0) {}
The initialization list in the constructor above value-initializes your data-members to zero. You can now properly assume that any non-zero value for mCharacter
and mDecimal
must have been specifically set by you somewhere else in your code, and contain non-zero values you can properly act on.
Use the rename() function.
rename("user/image1.jpg", "user/del/image1.jpg");
This is the way I prefer:
class Klass(object):
@staticmethod
def stat_func():
return 42
_ANS = stat_func.__func__()
def method(self):
return self.__class__.stat_func() + self.__class__._ANS
I prefer this solution to Klass.stat_func
, because of the DRY principle.
Reminds me of the reason why there is a new super()
in Python 3 :)
But I agree with the others, usually the best choice is to define a module level function.
For instance with @staticmethod
function, the recursion might not look very good (You would need to break DRY principle by calling Klass.stat_func
inside Klass.stat_func
). That's because you don't have reference to self
inside static method.
With module level function, everything will look OK.
There are many ways to create protection against session hijack, however all of them are either reducing user satisfaction or are not secure.
IP and/or X-FORWARDED-FOR checks. These work, and are pretty secure... but imagine the pain of users. They come to an office with WiFi, they get new IP address and lose the session. Got to log-in again.
User Agent checks. Same as above, new version of browser is out, and you lose a session. Additionally, these are really easy to "hack". It's trivial for hackers to send fake UA strings.
localStorage token. On log-on generate a token, store it in browser storage and store it to encrypted cookie (encrypted on server-side). This has no side-effects for user (localStorage persists through browser upgrades). It's not as secure - as it's just security through obscurity. Additionally you could add some logic (encryption/decryption) to JS to further obscure it.
Cookie reissuing. This is probably the right way to do it. The trick is to only allow one client to use a cookie at a time. So, active user will have cookie re-issued every hour or less. Old cookie is invalidated if new one is issued. Hacks are still possible, but much harder to do - either hacker or valid user will get access rejected.
Finally got this working!
Tested with a IPA signed with cert1 for app store submission with no devices added in the provisioning profile. Results in a new IPA signed with a enterprise account and a mobile provisioning profile for in house deployment (the mobile provisioning profile gets embedded to the IPA).
Solution:
Unzip the IPA
unzip Application.ipa
Remove old CodeSignature
rm -r "Payload/Application.app/_CodeSignature" "Payload/Application.app/CodeResources" 2> /dev/null | true
Replace embedded mobile provisioning profile
cp "MyEnterprise.mobileprovision" "Payload/Application.app/embedded.mobileprovision"
Re-sign
/usr/bin/codesign -f -s "iPhone Distribution: Certificate Name" --resource-rules "Payload/Application.app/ResourceRules.plist" "Payload/Application.app"
Re-package
zip -qr "Application.resigned.ipa" Payload
Edit: Removed the Entitlement part (see alleys comment, thanks)
Only want to clone the structure of table:
CREATE TABLE foo SELECT * FROM bar WHERE 1 = 2;
Also wants to copy the data:
CREATE TABLE foo as SELECT * FROM bar;
For those of you looking for a solution for this problem with the OpenGL SuperBible 6th source code samples, the solution is building in Release instead of Debug. All projects have disabled the incremental linking option in the Release version.
You are in the "Output" tab instead of the Terminal. The output tab is actually only for you to read from.
Press F5
to begin Debugging
and it'll bring you into the Terminal tab.
The terminal is interactive, so you can read output AND type back. It is indeed a console prompt/ terminal (hence its name).
I see that my response would be quite outdated, but never the less. I faced with the same problem. So here's my solution. The most useful code snipped was KGA's one. But it isn't totally working and is a bit complicated. But I simplified it.
Also, the main trouble maker was that fact, that 'change' event doesn't come instantly after focus, so we have to wait for some time.
"#appendfile" - which user clicks on to append a new file. Hrefs get focus events.
$("#appendfile").one("focusin", function () {
// no matter - user uploaded file or canceled,
// appendfile gets focus
// change doesn't come instantly after focus, so we have to wait for some time
// wrapper represents an element where a new file input is placed into
setTimeout(function(){
if (wrapper.find("input.fileinput").val() != "") {
// user has uploaded some file
// add your logic for new file here
}
else {
// user canceled file upload
// you have to remove a fileinput element from DOM
}
}, 900);
});
If you have a unique key, you may use COUNT(*) OVER ( ORDER BY unique_key ) as ROWNUM
SELECT t.*, count(*) OVER (ORDER BY k ) ROWNUM
FROM yourtable t;
| k | n | rownum |
|---|-------|--------|
| a | TEST1 | 1 |
| b | TEST2 | 2 |
| c | TEST2 | 3 |
| d | TEST4 | 4 |
Update: For an all configuration based approach using Groovy see Dean Hiller's answer.
--
You can do some interesting things with Logback filters. The below configuration will only print warn and error messages to stderr, and everything else to stdout.
logback.xml
<appender name="stdout" class="ch.qos.logback.core.ConsoleAppender">
<target>System.out</target>
<filter class="com.foo.StdOutFilter" />
...
</appender>
<appender name="stderr" class="ch.qos.logback.core.ConsoleAppender">
<target>System.err</target>
<filter class="com.foo.ErrOutFilter" />
...
</appender>
<logger name="mylogger" level="debug">
<appender-ref ref="stdout" />
<appender-ref ref="stderr" />
</logger>
com.foo.StdOutFilter
public class StdOutFilter extends ch.qos.logback.core.filter.AbstractMatcherFilter
{
@Override
public FilterReply decide(Object event)
{
if (!isStarted())
{
return FilterReply.NEUTRAL;
}
LoggingEvent loggingEvent = (LoggingEvent) event;
List<Level> eventsToKeep = Arrays.asList(Level.TRACE, Level.DEBUG, Level.INFO);
if (eventsToKeep.contains(loggingEvent.getLevel()))
{
return FilterReply.NEUTRAL;
}
else
{
return FilterReply.DENY;
}
}
}
com.foo.ErrOutFilter
public class ErrOutFilter extends ch.qos.logback.core.filter.AbstractMatcherFilter
{
@Override
public FilterReply decide(Object event)
{
if (!isStarted())
{
return FilterReply.NEUTRAL;
}
LoggingEvent loggingEvent = (LoggingEvent) event;
List<Level> eventsToKeep = Arrays.asList(Level.WARN, Level.ERROR);
if (eventsToKeep.contains(loggingEvent.getLevel()))
{
return FilterReply.NEUTRAL;
}
else
{
return FilterReply.DENY;
}
}
}
For a string I just write "\n"
to give me a new line. For example, typing console.log("First Name: Rex" + "\n" + "Last Name: Blythe");
Will type:
First Name: Rex
Last Name: Blythe
I believe this does it:
http://bassistance.de/jquery-plugins/jquery-plugin-validation/
It's got built-in patterns for stuff like URLs and e-mail addresses, and I think you can have it use your own as well.
I am using the Asp.Net Core angular template project with an Angular 4 front end and webpack. I had to use '/dist/assets/images/' in front of the image name, and store the image in the assets/images directory in the dist directory. eg:
<img class="img-responsive" src="/dist/assets/images/UnitBadge.jpg">
You're declaring a virtual
function and not defining it:
virtual void calculateCredits();
Either define it or declare it as:
virtual void calculateCredits() = 0;
Or simply:
virtual void calculateCredits() { };
Read more about vftable: http://en.wikipedia.org/wiki/Virtual_method_table
Change color values in the array
val gradientDrawable = GradientDrawable(
GradientDrawable.Orientation.TOP_BOTTOM,
intArrayOf(Color.parseColor("#008000"),
Color.parseColor("#ADFF2F"))
);
gradientDrawable.cornerRadius = 0f;
//Set Gradient
linearLayout.setBackground(gradientDrawable);
Result
This is a very obscure fault that WCF services throw. The issue is that WCF is unable to verify the security of the message that was passed to the service.
This is almost always because of a server time skew. The remote server and the client's system time must be within (typically) 10 minutes of each other. If they are not, security validation will fail.
I'd call eloqua.com and find out what their server time is, and compare that to your server time.
@Mahender, you probably meant the difference between \W
(instead of \w
) and \b
. If not, then I would agree with @BoltClock and @jwismar above. Otherwise continue reading.
\W
would match any non-word character and so its easy to try to use it to match word boundaries. The problem is that it will not match the start or end of a line. \b
is more suited for matching word boundaries as it will also match the start or end of a line. Roughly speaking (more experienced users can correct me here) \b
can be thought of as (\W|^|$)
. [Edit: as @?mega mentions below, \b
is a zero-length match so (\W|^|$)
is not strictly correct, but hopefully helps explain the diff]
Quick example: For the string Hello World
, .+\W
would match Hello_
(with the space) but will not match World
. .+\b
would match both Hello
and World
.
This worked for me in angular:
var a = document.createElement("a");
a.href = 'fileURL';
a.download = 'fileName';
a.click();
An ideal solution will:
Using a simple ul
menu inside of an nav
container, we can build a solution that meets the above requirements.
<nav>
<ul>
<li>Home</li>
<li>About</li>
<li>Basic Services</li>
<li>Specialty Services</li>
<li>Our Staff</li>
<li>Contact Us</li>
</ul>
</nav>
First, we need to force the ul
to have the full width of its nav
container. To accomplish this, we will use the :after
psuedo-element with width: 100%
.
This achieves our goal perfectly, but adds trailing whitespace from the psuedo-element. We can remove this whitespace across all browsers through IE8 by setting the line-height
of the ul
to 0 and setting it back to 100% on its li
children. See the example CodePen and solution below:
nav {
width: 900px;
}
nav ul {
text-align: justify;
line-height: 0;
margin: 0;
padding: 0;
}
nav ul:after {
content: '';
display: inline-block;
width: 100%;
}
nav ul li {
display: inline-block;
line-height: 100%;
}
I like to think about interfaces and implementations of interfaces. In C++ speak interface is pure virtual class. Destructor is part of the interface and expected to implemented. Therefore destructor should be pure virtual. How about constructor? Constructor is actually not part of the interface because object is always instantiated explicitly.
In ES6, import
s are live read-only views on exported-values. As a result, when you do import a from "somemodule";
, you cannot assign to a
no matter how you declare a
in the module.
However, since imported variables are live views, they do change according to the "raw" exported variable in exports. Consider the following code (borrowed from the reference article below):
//------ lib.js ------
export let counter = 3;
export function incCounter() {
counter++;
}
//------ main1.js ------
import { counter, incCounter } from './lib';
// The imported value `counter` is live
console.log(counter); // 3
incCounter();
console.log(counter); // 4
// The imported value can’t be changed
counter++; // TypeError
As you can see, the difference really lies in lib.js
, not main1.js
.
To summarize:
import
-ed variables, no matter how you declare the corresponding variables in the module.let
-vs-const
semantics applies to the declared variable in the module.
const
, it cannot be reassigned or rebound in anywhere.let
, it can only be reassigned in the module (but not the user). If it is changed, the import
-ed variable changes accordingly.<form onsubmit="return false;" id="myForm">
</form>
$('#myForm').submit(function() {
doSomething();
});
$name = str_replace(' ', '_', $name);
Framework will handle switching the views for you once you setup your cell's backgroundView
and selectedBackgroundView
, see example from Managing the Visual State for Selections and Highlights:
UIView* backgroundView = [[UIView alloc] initWithFrame:self.bounds];
backgroundView.backgroundColor = [UIColor redColor];
self.backgroundView = backgroundView;
UIView* selectedBGView = [[UIView alloc] initWithFrame:self.bounds];
selectedBGView.backgroundColor = [UIColor whiteColor];
self.selectedBackgroundView = selectedBGView;
you only need in your class that implements UICollectionViewDelegate
enable cells to be highlighted and selected like this:
- (BOOL)collectionView:(UICollectionView *)collectionView
shouldHighlightItemAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
- (BOOL)collectionView:(UICollectionView *)collectionView
shouldSelectItemAtIndexPath:(NSIndexPath *)indexPath;
{
return YES;
}
This works me.
You have two syntax options:
Option 1
CREATE TABLE Table1 (
id int identity(1, 1) not null,
LongIntColumn1 int,
CurrencyColumn money
)
CREATE TABLE Table2 (
id int identity(1, 1) not null,
LongIntColumn2 int,
CurrencyColumn2 money
)
INSERT INTO Table1 VALUES(12, 12.00)
INSERT INTO Table1 VALUES(11, 13.00)
INSERT INTO Table2
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1 FROM Table1 GROUP BY LongIntColumn1
Option 2
CREATE TABLE Table1 (
id int identity(1, 1) not null,
LongIntColumn1 int,
CurrencyColumn money
)
INSERT INTO Table1 VALUES(12, 12.00)
INSERT INTO Table1 VALUES(11, 13.00)
SELECT LongIntColumn1, Avg(CurrencyColumn) as CurrencyColumn1
INTO Table2
FROM Table1
GROUP BY LongIntColumn1
Bear in mind that Option 2 will create a table with only the columns on the projection (those on the SELECT).
Sadly, elements of the enum are 'global'. You access them by doing day = Saturday
. That means that you cannot have enum A { a, b } ;
and enum B { b, a } ;
for they are in conflict.
One way to get this error is trying to add a usercontrol to a form while the project is set to compile as x64. Visual Studio throws the unhelpful: "Failed to load toolbox item . It will be removed from the toolbox."
Workaround is to design with "Any CPU" and compile to x64 as necessary.
Altering the class model-dialog
you can achieve expected result. These small tricks work for me. Hope it will help you to solve this issue.
.modal-dialog {
width: 70%;
}
Updated 2018
In Bootstrap 4, the centering methods have changed..
Horizontal Center in BS4
text-center
is still used for display:inline
elementsmx-auto
replaces center-block
to center display:flex
childrenoffset-*
or mx-auto
can be used to center grid columnsmx-auto
(auto x-axis margins) will center display:block
or display:flex
elements that have a defined width, (%
, vw
, px
, etc..). Flexbox is used by default on grid columns, so there are also various flexbox centering methods.
Demo Bootstrap 4 Horizontal Centering
For vertical centering in BS4 see https://stackoverflow.com/a/41464397/171456
If you have a string and you know the index you want to put the two variables in the string you can use:
string temp = temp.Substring(0,index) + textbox1.Text + ":" + textbox2.Text +temp.Substring(index);
But if it is a simple line you can use it this way:
string temp = string.Format("your text goes here {0} rest of the text goes here : {1} , textBox1.Text , textBox2.Text ) ;"
Provide the :name
option to add_index
, e.g.:
add_index :studies,
["user_id", "university_id", "subject_name_id", "subject_type_id"],
unique: true,
name: 'my_index'
If using the :index
option on references
in a create_table
block, it takes the same options hash as add_index
as its value:
t.references :long_name, index: { name: :my_index }
I have modified one of the answers (by @op1ekun):
123-(apple(?=-)|banana(?=-)|(?!-))-?456
The reason is that the answer from @op1ekun also matches "123-apple456"
, without the hyphen after apple.
From ggplot 2.2.0
labels can easily be stacked by using position = position_stack(vjust = 0.5)
in geom_text
.
ggplot(Data, aes(x = Year, y = Frequency, fill = Category, label = Frequency)) +
geom_bar(stat = "identity") +
geom_text(size = 3, position = position_stack(vjust = 0.5))
Also note that "position_stack()
and position_fill()
now stack values in the reverse order of the grouping, which makes the default stack order match the legend."
Answer valid for older versions of ggplot
:
Here is one approach, which calculates the midpoints of the bars.
library(ggplot2)
library(plyr)
# calculate midpoints of bars (simplified using comment by @DWin)
Data <- ddply(Data, .(Year),
transform, pos = cumsum(Frequency) - (0.5 * Frequency)
)
# library(dplyr) ## If using dplyr...
# Data <- group_by(Data,Year) %>%
# mutate(pos = cumsum(Frequency) - (0.5 * Frequency))
# plot bars and add text
p <- ggplot(Data, aes(x = Year, y = Frequency)) +
geom_bar(aes(fill = Category), stat="identity") +
geom_text(aes(label = Frequency, y = pos), size = 3)
Five ways, 4 for bash and 1 addition for zsh:
type foobar &> /dev/null
hash foobar &> /dev/null
command -v foobar &> /dev/null
which foobar &> /dev/null
(( $+commands[foobar] ))
(zsh only)You can put any of them to your if
clause. According to my tests (https://www.topbug.net/blog/2016/10/11/speed-test-check-the-existence-of-a-command-in-bash-and-zsh/), the 1st and 3rd method are recommended in bash and the 5th method is recommended in zsh in terms of speed.
For example, if you have a users
entity you want to store, with fields (firstname, lastname , email)
and you want autogenerated id, you do this.
@Entity(tableName = "users")
data class Users(
@PrimaryKey(autoGenerate = true)
val id: Long,
val firstname: String,
val lastname: String,
val email: String
)
Room will then autogenerate and auto-increment the id
field.
You should call plt.show()
only at the end after creating all the plots.
when I generate sha1 key using android studio
Gradle -> Tasks -> android-> signingReport
and double click
That sha1 key is worked in debug mode but not worked when i build singed APK
so I generated sha 1 key using cmd it work
example
C:\>cd C:\Program Files\Java\jdk1.8.0_121\bin
and type
keytool -exportcert -keystore {path of sign jks key } -list -v
example
keytool -exportcert -keystore F:\testkey\damithk.jks -list -v
Some programs can't process output stream very well, using pipe to Out-Null
may not block it.
And Start-Process
needs the -ArgumentList
switch to pass arguments, not so convenient.
There is also another approach.
$exitCode = [Diagnostics.Process]::Start(<process>,<arguments>).WaitForExit(<timeout>)
In Solution Explorer Under Project Click on Dependencies->NuGet->Microsoft.NetCore.All-> Here list of all Microsoft .NetCore pakcages will appear. Search for Microsoft.EntityFrameworkCore(2.0.3) in bracket version can be seen Like this
SleepEx
function (see http://msdn.microsoft.com/en-us/library/ms686307.aspx) is the best choise if your program directly or indirectly creates windows (for example use some COM objects). In the simples cases you can also use Sleep
.
You need to do it through an ArrayAdapter
which will adapt your ArrayList (or any other collection) to your items in your layout (ListView, Spinner etc.).
This is what the Android developer guide says:
A
ListAdapter
that manages aListView
backed by an array of arbitrary objects. By default this class expects that the provided resource id references a singleTextView
. If you want to use a more complex layout, use the constructors that also takes a field id. That field id should reference aTextView
in the larger layout resource.However the
TextView
is referenced, it will be filled with thetoString()
of each object in the array. You can add lists or arrays of custom objects. Override thetoString()
method of your objects to determine what text will be displayed for the item in the list.To use something other than
TextViews
for the array display, for instanceImageViews
, or to have some of data besidestoString()
results fill the views, overridegetView(int, View, ViewGroup)
to return the type of view you want.
So your code should look like:
public class YourActivity extends Activity {
private ListView lv;
public void onCreate(Bundle saveInstanceState) {
setContentView(R.layout.your_layout);
lv = (ListView) findViewById(R.id.your_list_view_id);
// Instanciating an array list (you don't need to do this,
// you already have yours).
List<String> your_array_list = new ArrayList<String>();
your_array_list.add("foo");
your_array_list.add("bar");
// This is the array adapter, it takes the context of the activity as a
// first parameter, the type of list view as a second parameter and your
// array as a third parameter.
ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(
this,
android.R.layout.simple_list_item_1,
your_array_list );
lv.setAdapter(arrayAdapter);
}
}
The day C++ coders agree on The Way, lambs will lie down with lions, Palestinians will embrace Israelis, and cats and dogs will be allowed to marry.
The separation between .h and .cpp files is mostly arbitrary at this point, a vestige of compiler optimizations long past. To my eye, declarations belong in the header and definitions belong in the implementation file. But, that's just habit, not religion.
You can reach main page with parent command (parent is the window) after the step you can make everything...
function funcx() {
var result = confirm('bla bla bla.!');
if(result)
//parent.location.assign("http://localhost:58250/Ekocc/" + document.getElementById('hdnLink').value + "");
parent.location.assign("http://blabla.com/" + document.getElementById('hdnLink').value + "");
}
Try the below code and then call, sendSMS("99999999999", "message");
to send sms in desired number.
//---sends an SMS message to another device---
@SuppressWarnings("deprecation")
private void sendSMS(String phoneNumber, String message)
{
Log.v("phoneNumber",phoneNumber);
Log.v("MEssage",message);
PendingIntent pi = PendingIntent.getActivity(this, 0,
new Intent(this, **DummyClasshere.class**), 0);
SmsManager sms = SmsManager.getDefault();
sms.sendTextMessage(phoneNumber, null, message, pi, null);
}
Please place the following permission into AndroidManifest.xml
file.
<uses-permission android:name="android.permission.SEND_SMS"/>
Hope this might help.
Update From the comment: DummyClasshere.class is an activity without doing any process or the class in which u need to navigate.
You can use Object.class in place of DummyClasshere.class.
/dev/tty
is a synonym for the controlling terminal (if any) of the current process. As jtl999 says, it's a character special file; that's what the c
in the ls -l
output means.
man 4 tty
or man -s 4 tty
should give you more information, or you can read the man page online here.
Incidentally, pwd > /dev/tty
doesn't necessarily print to the shell's stdout (though it is the pwd
command's standard output). If the shell's standard output has been redirected to something other than the terminal, /dev/tty
still refers to the terminal.
You can also read from /dev/tty
, which will normally read from the keyboard.
For context, I created a project using the ASP.NET Core 2 Web Application template. Then, select the Web Application (MVC) then hit the Change Authentication button and select Individual User accounts.
There is a lot of infrastructure built up for you from this template. Find the ManageController
in the Controllers folder.
This ManageController
class constructor requires this UserManager variable to populated:
private readonly UserManager<ApplicationUser> _userManager;
Then, take a look at the the [HttpPost] Index method in this class. They get the current user in this fashion:
var user = await _userManager.GetUserAsync(User);
As a bonus note, this is where you want to update any custom fields to the user Profile you've added to the AspNetUsers table. Add the fields to the view, then submit those values to the IndexViewModel which is then submitted to this Post method. I added this code after the default logic to set the email address and phone number:
user.FirstName = model.FirstName;
user.LastName = model.LastName;
user.Address1 = model.Address1;
user.Address2 = model.Address2;
user.City = model.City;
user.State = model.State;
user.Zip = model.Zip;
user.Company = model.Company;
user.Country = model.Country;
user.SetDisplayName();
user.SetProfileID();
_dbContext.Attach(user).State = EntityState.Modified;
_dbContext.SaveChanges();
Array(repeating: a, count: b).reduce(1, *)
A slightly extended example to initialize all missing arguments with None
:
from collections import namedtuple
class Node(namedtuple('Node', ['value', 'left', 'right'])):
__slots__ = ()
def __new__(cls, *args, **kwargs):
# initialize missing kwargs with None
all_kwargs = {key: kwargs.get(key) for key in cls._fields}
return super(Node, cls).__new__(cls, *args, **all_kwargs)
You should start by profiling the SQL commands actually issued by the Entity Framework. Depending on your configuration (POCO, Self-Tracking entities) there is a lot room for optimizations. You can debug the SQL commands (which shouldn't differ between debug and release mode) using the ObjectSet<T>.ToTraceString()
method. If you encounter a query that requires further optimization you can use some projections to give EF more information about what you trying to accomplish.
Example:
Product product = db.Products.SingleOrDefault(p => p.Id == 10);
// executes SELECT * FROM Products WHERE Id = 10
ProductDto dto = new ProductDto();
foreach (Category category in product.Categories)
// executes SELECT * FROM Categories WHERE ProductId = 10
{
dto.Categories.Add(new CategoryDto { Name = category.Name });
}
Could be replaced with:
var query = from p in db.Products
where p.Id == 10
select new
{
p.Name,
Categories = from c in p.Categories select c.Name
};
ProductDto dto = new ProductDto();
foreach (var categoryName in query.Single().Categories)
// Executes SELECT p.Id, c.Name FROM Products as p, Categories as c WHERE p.Id = 10 AND p.Id = c.ProductId
{
dto.Categories.Add(new CategoryDto { Name = categoryName });
}
I just typed that out of my head, so this isn't exactly how it would be executed, but EF actually does some nice optimizations if you tell it everything you know about the query (in this case, that we will need the category-names). But this isn't like eager-loading (db.Products.Include("Categories")) because projections can further reduce the amount of data to load.
This works for me on the Northwind sample DB, note that SearchLetter has 2 characters to it and SearchLetter also has to be declared for this to run:
declare @SearchLetter2 char(2)
declare @SearchLetter char(1)
Set @SearchLetter = 'A'
Set @SearchLetter2 = @SearchLetter+'%'
select * from Customers where ContactName like @SearchLetter2 and Region='WY'
All the above commands create a new branch and with the latest commit being the one specified in the command, but just in case you want your current branch HEAD
to move to the specified commit, below is the command:
git checkout <commit_hash>
It detaches and point the HEAD
to specified commit and saves from creating a new branch when the user just wants to view the branch state till that particular commit.
You then might want to go back to the latest commit & fix the detached HEAD:
A more robust method: This takes care of also removing the initial and trailing spaces, if they exist. Eg:
// NOTE the possible initial and trailing spaces
var str = " The dog has a long tail, and it is RED! "
str = str.replace(/^\s+|\s+$|\s+(?=\s)/g, "");
// str -> "The dog has a long tail, and it is RED !"
Your example didn't have those spaces but they are a very common scenario too, and the accepted answer was only trimming those into single spaces, like: " The ... RED! ", which is not what you will typically need.
Oracle will try to recompile invalid objects as they are referred to. Here the trigger is invalid, and every time you try to insert a row it will try to recompile the trigger, and fail, which leads to the ORA-04098 error.
You can select * from user_errors where type = 'TRIGGER' and name = 'NEWALERT'
to see what error(s) the trigger actually gets and why it won't compile. In this case it appears you're missing a semicolon at the end of the insert
line:
INSERT INTO Users (userID, firstName, lastName, password)
VALUES ('how', 'im', 'testing', 'this trigger')
So make it:
CREATE OR REPLACE TRIGGER newAlert
AFTER INSERT OR UPDATE ON Alerts
BEGIN
INSERT INTO Users (userID, firstName, lastName, password)
VALUES ('how', 'im', 'testing', 'this trigger');
END;
/
If you get a compilation warning when you do that you can do show errors
if you're in SQL*Plus or SQL Developer, or query user_errors
again.
Of course, this assumes your Users
tables does have those column names, and they are all varchar2
... but presumably you'll be doing something more interesting with the trigger really.
You could pass the messages as explicit URL parameter (appropriately encoded), or store the messages into session
(cookie) variable before redirecting and then get the variable before rendering the template. For example:
from flask import session, url_for
def do_baz():
messages = json.dumps({"main":"Condition failed on page baz"})
session['messages'] = messages
return redirect(url_for('.do_foo', messages=messages))
@app.route('/foo')
def do_foo():
messages = request.args['messages'] # counterpart for url_for()
messages = session['messages'] # counterpart for session
return render_template("foo.html", messages=json.loads(messages))
(encoding the session variable might not be necessary, flask may be handling it for you, but can't recall the details)
Or you could probably just use Flask Message Flashing if you just need to show simple messages.
Just happened to me after upgrading to Android Studio 3.1. The Offline Work checkbox was unchecked, so no luck there.
I went to Settings > Build, Execution, Deployment > Compiler
and the Command-line Options
textfield contained --offline
, so I just deleted that and everything worked.
You can create an empty vector like so
vec <- numeric(0)
And then add elements using c()
vec <- c(vec, 1:5)
However as romunov says, it's much better to pre-allocate a vector and then populate it (as this avoids reallocating a new copy of your vector every time you add elements)
Using parameter binding is definitely the way to go here. Not only is it very quick to write (just add [Parameter(Mandatory=$true)]
above your mandatory parameters), but it's also the only option that you won't hate yourself for later.
More below:
[Console]::ReadLine
is explicitly forbidden by the FxCop rules for PowerShell. Why? Because it only works in PowerShell.exe, not PowerShell ISE, PowerGUI, etc.
Read-Host is, quite simply, bad form. Read-Host uncontrollably stops the script to prompt the user, which means that you can never have another script that includes the script that uses Read-Host.
You're trying to ask for parameters.
You should use the [Parameter(Mandatory=$true)]
attribute, and correct typing, to ask for the parameters.
If you use this on a [SecureString]
, it will prompt for a password field. If you use this on a Credential type, ([Management.Automation.PSCredential]
), the credentials dialog will pop up, if the parameter isn't there. A string will just become a plain old text box. If you add a HelpMessage to the parameter attribute (that is, [Parameter(Mandatory = $true, HelpMessage = 'New User Credentials')]
) then it will become help text for the prompt.
I know this is an old post, but figured I'd add my two penneth. How about the seldom used and oft' forgot Description list? With a simple bit of css you can get a really clean markup.
<dl>
<dt></dt><dd></dd>
<dt></dt><dd></dd>
<dt></dt><dd></dd>
</dl>
take a look at this example http://codepen.io/butlerps/pen/wGmXPL
This also works:
...
WHERE
(FirstName IS NULL OR FirstName = ISNULL(@FirstName, FirstName)) AND
(LastName IS NULL OR LastName = ISNULL(@LastName, LastName)) AND
(Title IS NULL OR Title = ISNULL(@Title, Title))
Current answers are perfectly correct on how to create the aggregations, but none actually address the column alias/renaming that is also requested in the question.
Typically, this is how I handle this case:
val dimensionFields = List("col1")
val metrics = List("col2", "col3", "col4")
val columnOfInterests = dimensions ++ metrics
val df = spark.read.table("some_table").
.select(columnOfInterests.map(c => col(c)):_*)
.groupBy(dimensions.map(d => col(d)): _*)
.agg(metrics.map( m => m -> "sum").toMap)
.toDF(columnOfInterests:_*) // that's the interesting part
The last line essentially renames every columns of the aggregated dataframe to the original fields, essentially changing sum(col2)
and sum(col3)
to simply col2
and col3
.
find the numbers and then replaced with strings which specified. It is achieved by two methods
Using a regular expression literal
Using keyword RegExp object
Using a regular expression literal:
<script type="text/javascript">
var string = "my contact number is 9545554545. my age is 27.";
alert(string.replace(/\d+/g, "XXX"));
</script>
**Output:**my contact number is XXX. my age is XXX.
for more details:
http://www.infinetsoft.com/Post/How-to-replace-number-with-string-in-JavaScript/1156
Unless there is a strong advantage to running your user form in Excel then I would go with a 100% Access solution that would export the reports and data to Excel on an ad-hoc basis.
From what you describe, Access seems the stronger contender as it is built for working with data:
you would have a lot more tools at your disposal to solve any data problems than have to go around the limitations of Excel and shoehorn it into becoming Access...
As for your questions:
Very easy. There have been some other questions on SO on that subject.
See for instance this one and that one.
Don't know, but I would guess that there could be a small penalty.
The biggest difficulty I see is trying to get all the functionalities that Access gives you and re-creating some of these in Excel.
Yes, you can have multiple Excel users and a single Access database.
Here again, using Access as a front-end and keeping the data in a linked Access database on your network would make more sense and it's easy as pie, there's even a wizard in Access to help you do that: it's just 1 click away.
Really, as most other people have said, take a tiny bit of time to get acquainted with Access, it will save you a lot of time and trouble.
You may know Excel better but if you've gone 80% of the way already if you know VBA and are familiar with the Office object model.
Other advantages of doing it in Access: the Access 2007 runtime is free, meaning that if you were to deploy to app to 1 or 30 PC it would cost you the same: nothing.
You only need one full version of Access for your development work (the Runtime doesn't have the designers).
Neither, because both are quite verbose for a very simple task. You can just do:
let result = ({
1: 'One',
2: 'Two',
3: 'Three'
})[opt] ?? 'Default' // opt can be 1, 2, 3 or anything (default)
This, of course, also works with strings, a mix of both or without a default case:
let result = ({
'first': 'One',
'second': 'Two',
3: 'Three'
})[opt] // opt can be 'first', 'second' or 3
It works by creating an object where the options/cases are the keys and the results are the values. By putting the option into the brackets you access the value of the key that matches the expression via the bracket notation.
This returns undefined
if the expression inside the brackets is not a valid key. We can detect this undefined-case by using the nullish coalescing operator ??
and return a default value.
console.log('Using a valid case:', ({
1: 'One',
2: 'Two',
3: 'Three'
})[1] ?? 'Default')
console.log('Using an invalid case/defaulting:', ({
1: 'One',
2: 'Two',
3: 'Three'
})[7] ?? 'Default')
_x000D_
.as-console-wrapper {max-height: 100% !important;top: 0;}
_x000D_
What does return; mean?
return;
really means it returns nothing void
. That's it.
why return; or other codes can write below the statement of System.exit(0);
It is allowed since compiler doesn't know calling System.exit(0)
will terminate the JVM
. The compiler will just give a warning - unnecessary return statement
First, if you develop an application with Java EE 6 within a server (JBoss), you should better use a DataSource. Then you can obtain the Connection from this DataSource. It's better to use connections pools.
Then, as of JBoss AS 7, the JDBC driver must be declared as a module. This is described here.
With OJDBC 6 (11.x), the name of the driver should be "oracle.jdbc.OracleDriver".
This is the name registered in SPI mode (see the content of this file : META-INF/services/java.sql.Driver).
Since Java 6 and JDBC 4.0, the JDBC Drivers are auto-registered.
Finally you will have to declare a DataSource within JBoss : DataSource configuration.
References :
Some people seem to be confusing these macros with assert()
.
These macros implement a compile-time test, while assert()
is a runtime test.
For Spring 4, using Spring Boot we can have the following example without using the anti-pattern of getting the Bean from the ApplicationContext directly:
package com.yourproject;
@SpringBootApplication
public class TestBed implements CommandLineRunner {
private MyService myService;
@Autowired
public TestBed(MyService myService){
this.myService = myService;
}
public static void main(String... args) {
SpringApplication.run(TestBed.class, args);
}
@Override
public void run(String... strings) throws Exception {
System.out.println("myService: " + MyService );
}
}
@Service
public class MyService{
public String getSomething() {
return "something";
}
}
Make sure that all your injected services are under com.yourproject
or its subpackages.
Use Assembly.GetTypes
. For example:
Assembly mscorlib = typeof(string).Assembly;
foreach (Type type in mscorlib.GetTypes())
{
Console.WriteLine(type.FullName);
}
A boundary across which two systems communicate.
Interfaces are how some OO languages achieve ad hoc polymorphism. Ad hoc polymorphism is simply functions with the same names operating on different types.
The syntax is wrong, it should instead be
svn merge <what(the range)> <from(your dev branch)> <to(trunk/trunk local copy)>
This question has been answered before, but wanted to add another quick/easy workaround that might help other visitors to this question.
import seasborn as sns
sns.kdeplot(mydata1)
sns.kdeplot(mydata2)
Some helpful examples are here for kde vs histogram comparison.
I had the same thing. All came down to a "d" instead of a "D" in a tag name in the schema.
You have to add a condition in your componentDidUpdate
method.
The example is using fast-deep-equal
to compare the objects.
import equal from 'fast-deep-equal'
...
constructor(){
this.updateUser = this.updateUser.bind(this);
}
componentDidMount() {
this.updateUser();
}
componentDidUpdate(prevProps) {
if(!equal(this.props.user, prevProps.user)) // Check if it's a new user, you can also use some unique property, like the ID (this.props.user.id !== prevProps.user.id)
{
this.updateUser();
}
}
updateUser() {
if (this.props.isManager) {
this.props.dispatch(actions.fetchAllSites())
} else {
const currentUserId = this.props.user.get('id')
this.props.dispatch(actions.fetchUsersSites(currentUserId))
}
}
Using Hooks (React 16.8.0+)
import React, { useEffect } from 'react';
const SitesTableContainer = ({
user,
isManager,
dispatch,
sites,
}) => {
useEffect(() => {
if(isManager) {
dispatch(actions.fetchAllSites())
} else {
const currentUserId = user.get('id')
dispatch(actions.fetchUsersSites(currentUserId))
}
}, [user]);
return (
return <SitesTable sites={sites}/>
)
}
If the prop you are comparing is an object or an array, you should use useDeepCompareEffect
instead of useEffect
.
Since the default for block elements is to order one on top of the other you should also be able to do this:
<div>
<img src="path/to/img">
<div>Text Under Image</div>
</div
img {
display: block;
}
$('#saveBtn').off('click').on('click',function(){
saveQuestion(id)
});
Go through http://www.w3.org/TR/css3-fonts/
Try this:
@font-face {
font-family: 'EntezareZohoor2';
src: url('EntezareZohoor2.eot');
src: local('EntezareZohoor2'), local('EntezareZohoor2'), url('EntezareZohoor2.ttf') format('svg');
font-weight: normal;
font-style: normal;
}