Does Jochen Kalmbach's Memory Leak Detector qualify?
PS: The URL to the latest version is buried somewhere in the article's comment thread.
If you use Safari, you can write
console.log("your message here");
and it appears right on the console of the browser.
As someone familiar with Visual Studio, I've looked at several open source IDE's to replace it, and KDevelop comes the closest IMO to being something that a Visual C++ person can just sit down and start using. When you run the project in debugging mode, it uses gdb but kdevelop pretty much handles the whole thing so that you don't have to know it's gdb; you're just single stepping or assigning watches to variables.
It still isn't as good as the Visual Studio Debugger, unfortunately.
Everytime docker successfully executes a RUN
command from a Dockerfile, a new layer in the image filesystem is committed. Conveniently you can use those layers ids as images to start a new container.
Take the following Dockerfile:
FROM busybox
RUN echo 'foo' > /tmp/foo.txt
RUN echo 'bar' >> /tmp/foo.txt
and build it:
$ docker build -t so-2622957 .
Sending build context to Docker daemon 47.62 kB
Step 1/3 : FROM busybox
---> 00f017a8c2a6
Step 2/3 : RUN echo 'foo' > /tmp/foo.txt
---> Running in 4dbd01ebf27f
---> 044e1532c690
Removing intermediate container 4dbd01ebf27f
Step 3/3 : RUN echo 'bar' >> /tmp/foo.txt
---> Running in 74d81cb9d2b1
---> 5bd8172529c1
Removing intermediate container 74d81cb9d2b1
Successfully built 5bd8172529c1
You can now start a new container from 00f017a8c2a6
, 044e1532c690
and 5bd8172529c1
:
$ docker run --rm 00f017a8c2a6 cat /tmp/foo.txt
cat: /tmp/foo.txt: No such file or directory
$ docker run --rm 044e1532c690 cat /tmp/foo.txt
foo
$ docker run --rm 5bd8172529c1 cat /tmp/foo.txt
foo
bar
of course you might want to start a shell to explore the filesystem and try out commands:
$ docker run --rm -it 044e1532c690 sh
/ # ls -l /tmp
total 4
-rw-r--r-- 1 root root 4 Mar 9 19:09 foo.txt
/ # cat /tmp/foo.txt
foo
When one of the Dockerfile command fails, what you need to do is to look for the id of the preceding layer and run a shell in a container created from that id:
docker run --rm -it <id_last_working_layer> bash -il
Once in the container:
If you really need to experiment in the actual layer that failed instead of working from the last working layer, see Drew's answer.
I know this is very old and possibly talking about an older version of Visual studio and so this might not have been an option before but anyway, my way would be when at a breakpoint use the locals window to see all current variable values ( Debug >> Windows >> Locals )
the right, easy, cool, exact answer for the question is to use %run macro with -d flag.
In [4]: run -d myscript.py
NOTE: Enter 'c' at the ipdb> prompt to continue execution.
> /cygdrive/c/Users/mycodefolder/myscript.py(4)<module>()
2
3
----> 4 a=1
5 b=2
In order to complete BlueM's accepted answer, you can desactivate it here:
Tools > Options > Debugging > General Output Settings > Thread Exit Messages : Off
Like @Nycen I also got this error because of a link to Cloudfare. Mine was for the Select2 plugin.
to fix it I just removed
src="//cdnjs.cloudflare.com/ajax/libs/select2/4.0.0/js/select2.min.js"
and the error went away.
This video does an excellent job of showing you how to set breakpoints and watch variables in the Eclipse Debugger. http://youtu.be/9gAjIQc4bPU
A technique I use is something like the following. Define a global variable that you can use for one or multiple try catch blocks depending on what you're trying to debug and use the following structure:
if(!GlobalTestingBool)
{
try
{
SomeErrorProneMethod();
}
catch (...)
{
// ... Error handling ...
}
}
else
{
SomeErrorProneMethod();
}
I find this gives me a bit more flexibility in terms of testing because there are still some exceptions I don't want the IDE to break on.
Are you using smart pointers such as Boost shared_ptr
? If so, check if you are directly using the raw pointer anywhere by calling get()
. I've found this to be quite a common problem.
For example, imagine a scenario where a raw pointer is passed (maybe as a callback handler, say) to your code. You might decide to assign this to a smart pointer in order to cope with reference counting etc. Big mistake: your code doesn't own this pointer unless you take a deep copy. When your code is done with the smart pointer it will destroy it and attempt to destroy the memory it points to since it thinks that no-one else needs it, but the calling code will then try to delete it and you'll get a double free problem.
Of course, that might not be your problem here. At it's simplest here's an example which shows how it can happen. The first delete is fine but the compiler senses that it's already deleted that memory and causes a problem. That's why assigning 0 to a pointer immediately after deletion is a good idea.
int main(int argc, char* argv[])
{
char* ptr = new char[20];
delete[] ptr;
ptr = 0; // Comment me out and watch me crash and burn.
delete[] ptr;
}
Edit: changed delete
to delete[]
, as ptr is an array of char.
Really old post but in case someone is unaware...
In Visual Studio 2015, you can place a breakpoint on the set
accessor of an Auto-Implemented Property and the debugger will break when the property is updated
public bool IsUpdated
{
get;
set; //set breakpoint on this line
}
Update
Alternatively; @AbdulRaufMujahid has pointed out in the comments that if the auto implemented property is on a single line, you can position your cursor at the get;
or set;
and hit F9
and a breakpoint will be placed accordingly. Nice!
public bool IsUpdated { get; set; }
In addition to already suggested p
and puts
— well, actually in most cases you do can write logger.info "blah"
just as you suggested yourself. It works in console too, not only in server mode.
But if all you want is console debugging, puts
and p
are much shorter to write, anyway.
Use the -S switch
g++ -S main.cpp
or also with gcc
gcc -S main.c
Also see this
type : BOOL DATA (YES/NO) OR(1/0)
BOOL dtBool = 0;
OR
BOOL dtBool = NO;
NSLog(dtBool ? @"Yes" : @"No");
OUTPUT : NO
type : Long
long aLong = 2015;
NSLog(@"Display Long: %ld”, aLong);
OUTPUT : Display Long: 2015
long long veryLong = 20152015;
NSLog(@"Display very Long: %lld", veryLong);
OUTPUT : Display very Long: 20152015
type : String
NSString *aString = @"A string";
NSLog(@"Display string: %@", aString);
OUTPUT : Display String: a String
type : Float
float aFloat = 5.34245;
NSLog(@"Display Float: %F", aFloat);
OUTPUT : isplay Float: 5.342450
type : Integer
int aInteger = 3;
NSLog(@"Display Integer: %i", aInteger);
OUTPUT : Display Integer: 3
NSLog(@"\nDisplay String: %@ \n\n Display Float: %f \n\n Display Integer: %i", aString, aFloat, aInteger);
OUTPUT : String: a String
Display Float: 5.342450
Display Integer: 3
http://luterr.blogspot.sg/2015/04/example-code-nslog-console-commands-to.html
Please un check this from the Eclipse Menu.
Run->Skip all breakpoints.
I think this will be enabled permanently once You select the Remove all Break points option in the Debug/Breakpoints window.
You should be using the unwind library.
unw_cursor_t cursor; unw_context_t uc;
unw_word_t ip, sp;
unw_getcontext(&uc);
unw_init_local(&cursor, &uc);
unsigned long a[100];
int ctr = 0;
while (unw_step(&cursor) > 0) {
unw_get_reg(&cursor, UNW_REG_IP, &ip);
unw_get_reg(&cursor, UNW_REG_SP, &sp);
if (ctr >= 10) break;
a[ctr++] = ip;
}
Your approach also would work fine unless you make a call from a shared library.
You can use the addr2line
command on Linux to get the source function / line number of the corresponding PC.
You can simply add an inspect()
method to your object which will override the representation of object in console.log
messages
eg:
var myObject = {
"a":"a",
"b":{
"c":"c",
"d":{
"e":"e",
"f":{
"g":"g",
"h":{
"i":"i"
}
}
}
}
};
myObject.inspect = function(){ return JSON.stringify( this, null, ' ' ); }
then, your object will be represented as required in both console.log and node shell
Update:
object.inspect has been deprecated ( https://github.com/nodejs/node/issues/15549). Use myObject[util.inspect.custom] instead:
const util = require('util')
var myObject = {
/* nested properties not shown */
}
myObject[util.inspect.custom] = function(){ return JSON.stringify( this, null, 4 ); }
console.log(util.inspect(myObject))
The other posts describe what a stack trace is, but it can still be hard to work with.
If you get a stack trace and want to trace the cause of the exception, a good start point in understanding it is to use the Java Stack Trace Console in Eclipse. If you use another IDE there may be a similar feature, but this answer is about Eclipse.
First, ensure that you have all of your Java sources accessible in an Eclipse project.
Then in the Java perspective, click on the Console tab (usually at the bottom). If the Console view is not visible, go to the menu option Window -> Show View and select Console.
Then in the console window, click on the following button (on the right)
and then select Java Stack Trace Console from the drop-down list.
Paste your stack trace into the console. It will then provide a list of links into your source code and any other source code available.
This is what you might see (image from the Eclipse documentation):
The most recent method call made will be the top of the stack, which is the top line (excluding the message text). Going down the stack goes back in time. The second line is the method that calls the first line, etc.
If you are using open-source software, you might need to download and attach to your project the sources if you want to examine. Download the source jars, in your project, open the Referenced Libraries folder to find your jar for your open-source module (the one with the class files) then right click, select Properties and attach the source jar.
I feel a bit stupid on this but let this be a lesson to everyone...Make sure you target the right selector!
Basically the console wasn't logging anything because this particular code snippet was attempting to grab the scrolling area of my window, when in fact my code was setup differently to scroll an entire DIV instead. As soon as I changed:
$(window).scroll(function() {
to this:
$('#scroller').scroll(function() {
The console started logging the correct messages.
Configure in Tools, Options, Debugging, Symbols.
You can watch the output window (view, output) to see what it's doing usually. If it's really slow that probably means it's hitting a symbol server, probably Microsoft's, to download missing symbols. This takes three HTTP hits for each file it can't find on every startup - you can sometimes see this in the status bar at the bottom or in e.g. Fiddler. You can see which modules have loaded symbols in Debug, Windows, Modules whilst you're debugging.
Symbols mean you get useful stack trace information into third party and system assemblies. You definitely need them for your own code, but I think those get loaded regardless. Your best bet is to turn off any non-local symbol sources in that menu and, if you're loading lots of symbols for system assemblies that you don't need to debug into you can temporarily disable loading those to speed up debug start - but they're often useful to have loaded.
From Eclipsepedia on how to set a conditional breakpoint:
First, set a breakpoint at a given location. Then, use the context menu on the breakpoint in the left editor margin or in the Breakpoints view in the Debug perspective, and select the breakpoint’s properties. In the dialog box, check Enable Condition, and enter an arbitrary Java condition, such as
list.size()==0
. Now, each time the breakpoint is reached, the expression is evaluated in the context of the breakpoint execution, and the breakpoint is either ignored or honored, depending on the outcome of the expression.Conditions can also be expressed in terms of other breakpoint attributes, such as hit count.
You need to use LogLevel rewrite:trace3
to your httpd.conf
in newer version
http://httpd.apache.org/docs/2.4/mod/mod_rewrite.html#logging
zitao xiong's answer is pretty close to what I use; I also include the file name (by stripping off the path of FILE).
#ifdef DEBUG
#define NSLogDebug(format, ...) \
NSLog(@"<%s:%d> %s, " format, \
strrchr("/" __FILE__, '/') + 1, __LINE__, __PRETTY_FUNCTION__, ## __VA_ARGS__)
#else
#define NSLogDebug(format, ...)
#endif
Run cscript.exe for full command args, I think
cscript //X scriptfile.vbs MyArg1 MyArg2
will run the script in a debugger.
I use pyDev with Eclipse really good, set break points, step into code, view values on any objects and variables, try it.
FYI: g++ offers the non-standard __PRETTY_FUNCTION__ macro. Until just now I did not know about C99 __func__ (thanks Evan!). I think I still prefer __PRETTY_FUNCTION__ when it's available for the extra class scoping.
PS:
static string getScopedClassMethod( string thePrettyFunction )
{
size_t index = thePrettyFunction . find( "(" );
if ( index == string::npos )
return thePrettyFunction; /* Degenerate case */
thePrettyFunction . erase( index );
index = thePrettyFunction . rfind( " " );
if ( index == string::npos )
return thePrettyFunction; /* Degenerate case */
thePrettyFunction . erase( 0, index + 1 );
return thePrettyFunction; /* The scoped class name. */
}
Guessing from the information I have, you're not actually compiling the program, but trying to run it. That is, ALL_BUILD is set as your startup project. (It should be in a bold font, unlike the other projects in your solution) If you then try to run/debug, you will get the error you describe, because there is simply nothing to run.
The project is most likely generated via CMAKE and included in your Visual Studio solution. Set any of the projects that do generate a .exe as the startup project (by right-clicking on the project and selecting "set as startup project") and you will most likely will be able to start those from within Visual Studio.
<application android:debuggable="true">
</application>
This no longer works! No need to use debuggable="true" in manifest.
Instead, you should set the Build Variants to "debug"
In Android Studio, go to BUILD -> Select Build Variant
Now try debugging. Thanks
I faced similar problem using ui bootstrap directive for angularjs - uib-datepicker, when pressing am/pm toggle.
Error in event handler for (unknown): SyntaxError: Unexpected end of JSON input angular timepicker
Turned out it was because of plugin 'Trans-over' (which translates a word when it is clicked). Maybe my answer will help someone, because I didn't found anything on the internet.
The best way is using ADBConnect (Eclipse plugin) and ADB Wireless (app for Android device).
I think it may be worth mentioning that [ConditionalAttribute]
is in the System.Diagnostics;
namespace. I stumbled a bit when I got:
Error 2 The type or namespace name 'ConditionalAttribute' could not be found (are you missing a using directive or an assembly reference?)
after using it for the first time (I thought it would have been in System
).
Improving on Andru's idea, you can write a script which creates console functions if they don't exist:
if (!window.console) console = {};
console.log = console.log || function(){};
console.warn = console.warn || function(){};
console.error = console.error || function(){};
console.info = console.info || function(){};
Then, use any of the following:
console.log(...);
console.error(...);
console.info(...);
console.warn(...);
These functions will log different types of items (which can be filtered based on log, info, error or warn) and will not cause errors when console is not available. These functions will work in Firebug and Chrome consoles.
...How can I step through my javascript code line by line using Google Chromes developer tools without it going into javascript libraries?...
For the record: At this time (Feb/2015) both Google Chrome and Firefox have exactly what you (and I) need to avoid going inside libraries and scripts, and go beyond the code that we are interested, It's called Black Boxing:
When you blackbox a source file, the debugger will not jump into that file when stepping through code you're debugging.
More info:
Generally, the backtrace is used to get the stack of the current thread, but if there is a necessity to get the stack trace of all the threads, use the following command.
thread apply all bt
There are more than one way to increment a variable in bash, but what you tried is not correct.
You can use for example arithmetic expansion:
i=$((i+1))
or only:
((i=i+1))
or:
((i+=1))
or even:
((i++))
Or you can use let:
let "i=i+1"
or only:
let "i+=1"
or even:
let "i++"
See also: http://tldp.org/LDP/abs/html/dblparens.html.
ddd is a graphical front-end to gdb that is pretty nice. One of the down sides is a classic X interface, but I seem to recall it being pretty intuitive.
Try: Console.WriteLine
(type out
for a Visual Studio snippet)
Console.WriteLine(stuff);
Another way is to use System.Diagnostics.Debug.WriteLine
:
System.Diagnostics.Debug.WriteLine(stuff);
Debug.WriteLine
may suit better for Output window in IDE because it will be rendered for both Console and Windows applications. Whereas Console.WriteLine
won't be rendered in Output window but only in the Console itself in case of Console Application type.
Another difference is that Debug.WriteLine
will not print anything in Release configuration.
One the reasons could be that the XMLHttpRequest.abort() was called somewhere in the code, in this case, the request will have the cancelled
status in the Chrome Developer tools Network tab.
I've accidentally found that DebugView (with enabled Capture > Capture Win32
option) will capture writes to System.Console
.
Example test:
[Test]
public void FooTest()
{
for (int i = 0; i < 5; i++)
Console.WriteLine($"[{DateTime.UtcNow.ToString("G")}] Hello World");
}
<?php var_dump(obj) ?>
or
<?php print_r(obj) ?>
These are the same things you use for arrays too.
These will show protected and private properties of objects with PHP 5. Static class members will not be shown according to the manual.
If you want to know the member methods you can use get_class_methods():
$class_methods = get_class_methods('myclass');
// or
$class_methods = get_class_methods(new myclass());
foreach ($class_methods as $method_name)
{
echo "$method_name<br/>";
}
Related stuff:
get_class() <-- for the name of the instance
I just simply place select statements in key areas of the stored procedure to check on current status of data sets, and then comment them out (--select...) or remove them before production.
To complement the list, also be aware of http://mitmproxy.org/
In 2015, there are at least six choices for JavaScript debugging in Eclipse:
Adding to the above, here are a couple of videos which focus on "debugging JavaScript using eclipse"
in AndroidStudio or idea
add "VM Options" Config
“-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005”
remember "address"
http://www.eclipsezone.com/eclipse/forums/t53459.html
Basically run it with:
-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=1044
The application, at launch, will wait until you connect from another source.
Put breakpoints - double click on the margin. Run > Debug > Yes (if dialog appears), then use commands from Run menu or shortcuts - F5, F6, F7, F8.
I was looking for a way to change the script and debug that new script. Way I managed to do that is:
Set the breakpoint in the first line of the script you want to change and debug.
Reload the page so the breakpoint is being hit
Paste your new script and set desired breakpoints in it
Ctrl+s, and the page will refresh causing that breakpoint in first line to be hit.
F8 to continue, and now your newly pasted script replaces original one as long as no redirections and reloads are made.
.exe - the 'normal' executable
.vshost.exe - a special version of the executable to aid debuging; see MSDN for details
.pdb - the Program Data Base with debug symbols
.vshost.exe.manifest - a kind of configuration file containing mostly dependencies on libraries
I'm using GDB7.1.1, as --help
shows:
gdb [options] --args executable-file [inferior-arguments ...]
IMHO, the order is a bit unintuitive at first.
HTTPScoop is awesome for inspecting the web traffic on your Mac. It's been incredibly helpful for me. I didn't think twice about the $15 price tag. There is a 14 day trial.
Before Java 5.0, use -Xdebug
and -Xrunjdwp
arguments. These options will still work in later versions, but it will run in interpreted mode instead of JIT, which will be slower.
From Java 5.0, it is better to use the -agentlib:jdwp
single option:
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=1044
Options on -Xrunjdwp
or agentlib:jdwp
arguments are :
transport=dt_socket
: means the way used to connect to JVM (socket is a good choice, it can be used to debug a distant computer)address=8000
: TCP/IP port exposed, to connect from the debugger, suspend=y
: if 'y', tell the JVM to wait until debugger is attached to begin execution, otherwise (if 'n'), starts execution right away.Command where or frame can be used. where command will give more info with the function name
I was having the same issue, went to the 'About Google Chrome'->Help and it said I needed to restart my browser to get the latest updates.
I did this, and suddenly, I can now change local variables. Simply click the variable you want to edit in the Scope Variables window, and type in your new value.
I did notice some oddities though, that I had to step over some unrelated var assignments before I could alter the text in the right hand window (Scope Variables).
In the Developer Tools in Chrome, there is a bar along the top, called the Execution Context Selector
(h/t felipe-sabino), just under the Elements, Network, Sources... tabs, that changes depending on the context of the current tab. When in the Console tab there is a dropdown in that bar that allows you to select the frame context in which the Console will operate. Select your frame in this drop down and you will find yourself in the appropriate frame context. :D
Chrome v59
Chrome v33
Chrome v32 & lower
Where do you want to see the output?
Messages being output via Debug.Print
will be displayed in the immediate window which you can open by pressing Ctrl+G.
You can also Activate the so called Immediate Window by clicking View -> Immediate Window on the VBE toolbar
If you can't use bat files to set up your environment, then your only likely option is to set up a system wide environment variable. You can find these by doing
I don't know if you'd have to restart visual studio, but seems unlikely. HTH
I tried renaming the .pdb
file in obj\debug
folder and did a clean solution and rebuild.
It created a new .pdb
file and I was able to hit breakpoints correctly.
'Watching' STL containers while debugging is somewhat of a problem. Here are 3 different solutions I have used in the past, none of them is perfect.
1) Use GDB scripts from http://clith.com/gdb_stl_utils/ These scripts allow you to print the contents of almost all STL containers. The problem is that this does not work for nested containers like a stack of sets.
2) Visual Studio 2005 has fantastic support for watching STL containers. This works for nested containers but this is for their implementation for STL only and does not work if you are putting a STL container in a Boost container.
3) Write your own 'print' function (or method) for the specific item you want to print while debugging and use 'call' while in GDB to print the item. Note that if your print function is not being called anywhere in the code g++ will do dead code elimination and the 'print' function will not be found by GDB (you will get a message saying that the function is inlined). So compile with -fkeep-inline-functions
Adding to what deceze said above. This is a parse error, so in order to debug a parse error, create a new file in the root named debugSyntax.php. Put this in it:
<?php
/////// SYNTAX ERROR CHECK ////////////
error_reporting(E_ALL);
ini_set('display_errors','On');
//replace "pageToTest.php" with the file path that you want to test.
include('pageToTest.php');
?>
Run the debugSyntax.php page and it will display parse errors from the page that you chose to test.
One workaround is just to use select without any other clauses.
probleme : unit test result are not the same runing with eclipse and maven due ti order of library used by eclipse and maven. In my case the test was success with maven but i want to debug my unit test using eclipse, so the most easy way to debug unit test class with eclipse and runing maven is :
1) mvn -Dtest=MySuperClassTest -Dmaven.surefire.debug test ==> it will listen to the 5005 port (default port)
2) Go to eclipse, open a debug configuration, add a new java remote application and change the port to 5005 and debug
3) of course you must add break point somewhere in the class that you want to debug
You can use app.run(debug=True)
for the Werkzeug Debugger edit as mentioned below, and I should have known.
you can use cmd \k
at the end of your script to see the error. it won't close your command prompt after the execution is done
Please see http://java.dzone.com/articles/how-debug-remote-java-applicat to enable the remote debugging. If you are using tomcat to run your application, start tomcat with remote debug parameters or you can start tomcat with JPDA support by using following command.
Windows
<tomcat bin dir>/startup.bat jpda
*nix
<tomcat bin dir>/startup.sh jpda
this will enable remote debugging on port 8000
The cause of that problem has to do with system permissions (thanks @ IsaacCisneros for this suggestion). Somehow HTC Wildfire (and maybe the others) need something more from the system than Samsung devices. Simple solution is to run Eclipse as a root, but this is not very comfortable with non-sudo Linux systems like Fedora.
I've found another way of achieving the same goal, which seems to be more user friendly and is lesser security hole then running entire IDE with super user privileges. Mind this is still only a workaround of the problem. System root usage should be minimalized only to administrative tasks, and “adb” was designed to work with normal user account without SUID. Despite of the fact that the proper setting of SUID is quite secure, every single permission increase is a potential system security hole.
1.Setting ownership of the adb binary (owner – root, owner group - user_group):
chown root:user_group adb
2.Setting permissions with SUID:
chmod 4550 adb
This should result something similar to this (ls -llh):
-r-sr-x---. 1 root user_name 1.2M Jan 8 11:42 adb
After that you will be able to run adb as a root, event though you'll be using your normal user account. You can run Eclipse as a normal user and your HTC should be discovered properly.
./adb devices
List of devices attached
HT0BPPY15230 device
Just turn off your WiFi in Mac OSX this works a treat!
import traceback
traceback.print_stack()
Unfortunately, it the Developer Tools in Chrome seem to be unable to "stop on all errors", as Firebug does.
Easiest way is to provide the process id.
gdb -p `pidof your_running_program_name`
Please get the full list of option in man gdb
command.
In case there are multiple process for the same program running, then the following command will list the processes.
ps -C program -o pid h
<number>
Then the output process id (number) can be used as argument to gdb.
gdb -p <process id>
I had a new VirtualHost configuration file that was not showing when using the apachectl -S
command. After much head scratching I realised that my file did not have suffix ".conf". Once I renamed the file with that suffix my Vhost started showing and working!
There is an interesting discussion here: http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/307d658a-f677-40f2-bdef-e6352b0bfe9e/ My understanding of this thread is that freeing small allocations are not reflected in Private Bytes or Working Set.
Long story short:
if I call
p=malloc(1000);
free(p);
then the Private Bytes reflect only the allocation, not the deallocation.
if I call
p=malloc(>512k);
free(p);
then the Private Bytes correctly reflect the allocation and the deallocation.
A Worker Process is user mode code whose role is to process requests, such as processing requests to return a static page.
The worker process is controlled by the www service.
worker processes also run application code, Such as ASP .NET applications and XML web Services.
When Application pool receive the request, it simply pass the request to worker process (w3wp.exe) . The worker process“w3wp.exe” looks up the URL of the request in order to load the correct ISAPI extension. ISAPI extensions are the IIS way to handle requests for different resources. Once ASP.NET is installed, it installs its own ISAPI extension (aspnet_isapi.dll)and adds the mapping into IIS.
When Worker process loads the aspnet_isapi.dll, it start an HTTPRuntime, which is the entry point of an application. HTTPRuntime is a class which calls the ProcessRequest method to start Processing.
For more detail refer URL http://aspnetnova.blogspot.in/2011/12/how-iis-process-for-aspnet-requests.html
I never tried, but doing a google search, Jailcoder looks like a solution. The problem is the device need to be jailbroken. If anyone try this, please comment and let us know how it worked.
As @MilacH pointed out, there is an error in the implementation. If an statusCode > 400 is returned a IOException is thrown, as the errorHandler is not invoked, from interceptors. The exception can be ignored and is then caught again in the handler method.
package net.sprd.fulfillment.common;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import static java.nio.charset.StandardCharsets.UTF_8;
public class LoggingRequestInterceptor implements ClientHttpRequestInterceptor {
final static Logger log = LoggerFactory.getLogger(LoggingRequestInterceptor.class);
@SuppressWarnings("HardcodedLineSeparator")
public static final char LINE_BREAK = '\n';
@Override
public ClientHttpResponse intercept(HttpRequest request, byte[] body, ClientHttpRequestExecution execution) throws IOException {
try {
traceRequest(request, body);
} catch (Exception e) {
log.warn("Exception in LoggingRequestInterceptor while tracing request", e);
}
ClientHttpResponse response = execution.execute(request, body);
try {
traceResponse(response);
} catch (IOException e) {
// ignore the exception here, as it will be handled by the error handler of the restTemplate
log.warn("Exception in LoggingRequestInterceptor", e);
}
return response;
}
private void traceRequest(HttpRequest request, byte[] body) {
log.info("===========================request begin================================================");
log.info("URI : {}", request.getURI());
log.info("Method : {}", request.getMethod());
log.info("Headers : {}", request.getHeaders());
log.info("Request body: {}", new String(body, UTF_8));
log.info("==========================request end================================================");
}
private void traceResponse(ClientHttpResponse response) throws IOException {
StringBuilder inputStringBuilder = new StringBuilder();
try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(response.getBody(), UTF_8))) {
String line = bufferedReader.readLine();
while (line != null) {
inputStringBuilder.append(line);
inputStringBuilder.append(LINE_BREAK);
line = bufferedReader.readLine();
}
}
log.info("============================response begin==========================================");
log.info("Status code : {}", response.getStatusCode());
log.info("Status text : {}", response.getStatusText());
log.info("Headers : {}", response.getHeaders());
log.info("Response body: {}", inputStringBuilder);
log.info("=======================response end=================================================");
}
}
To debug Windows Services I combine GFlags and a .reg file created by regedit.
Or save the following snippets and replace servicename.exe with the desired executable name.
debugon.reg:
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\servicename.exe] "GlobalFlag"="0x00000000" "Debugger"="vsjitdebugger.exe"
debugoff.reg:
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\servicename.exe] "GlobalFlag"="0x00000000"
Nope.
While in debug configuration there is a DEBUG
defined constant (automatically defined by Visual Studio) while there is no such constant defined for release mode. Check your project settings under build.
Selecting [Define DEBUG constant] under Project -> Build is like including #define DEBUG at the beginning of every file.
If you want to define a RELEASE constant for the release configuration go to:
When you open phpinfo() see if the thread safety is enable or not enable also see the version of php and see MSVC-- what is the number in place of -- and see the architecture these all things help u to get the suitable php driver
here a url help u to get a php driver https://s3.amazonaws.com/drivers.mongodb.org/php/index.html
Visual Studio defines _DEBUG
when you specify the /MTd
or /MDd
option, NDEBUG
disables standard-C assertions. Use them when appropriate, ie _DEBUG
if you want your debugging code to be consistent with the MS CRT debugging techniques and NDEBUG
if you want to be consistent with assert()
.
If you define your own debugging macros (and you don't hack the compiler or C runtime), avoid starting names with an underscore, as these are reserved.
Yes, it's in the Debugging section of the properties page of the project.
In Visual Studio since 2008: right-click the project, choose Properties, go to the Debugging section -- there is a box for "Command Arguments". (Tip: not solution, but project).
Here's what works for me to get the line number in Python 3.7.3 in VSCode 1.39.2 (dmsg
is my mnemonic for debug message):
import inspect
def dmsg(text_s):
print (str(inspect.currentframe().f_back.f_lineno) + '| ' + text_s)
To call showing a variable name_s
and its value:
name_s = put_code_here
dmsg('name_s: ' + name_s)
Output looks like this:
37| name_s: value_of_variable_at_line_37
My coworker had this problem, followed similar steps as those here, but the solution was different than any of these given.
The code she wanted to debug was in a project referenced by the current project, and it was never running within the Visual Studio session. The DLL was running from the GAC folder, after she deleted that the project wouldn't run at all, throwing an exception as soon as it tried to run. The solution was to include the referenced project in the local folder.
From the SolutionExplorer:
Try again. (It worked for her!)
I have found Transform Feedback to be a useful tool for debugging vertex shaders. You can use this to capture the values of VS outputs, and read them back on the CPU side, without having to go through the rasterizer.
Here is another link to a tutorial on Transform Feedback.
CTRL+SHIFT+I brings up the developers tools.
If you have the script editor open you will see the logs under View->Logs. If your script has an onedit trigger, make a change to the spreadsheet which should trigger the function with the script editor opened in a second tab. Then go to the script editor tab and open the log. You will see whatever your function passes to the logger.
Basically as long as the script editor is open, the event will write to the log and show it for you. It will not show if someone else is in the file elsewhere.
My comprehensive solution to disable/override all console.*
functions is here.
Of course, please make sure you are including it after checking necessary context. For example, only including in production release, it's not bombing any other crucial components etc.
Quoting it here:
"use strict";_x000D_
(() => {_x000D_
var console = (window.console = window.console || {});_x000D_
[_x000D_
"assert", "clear", "count", "debug", "dir", "dirxml",_x000D_
"error", "exception", "group", "groupCollapsed", "groupEnd",_x000D_
"info", "log", "markTimeline", "profile", "profileEnd", "table",_x000D_
"time", "timeEnd", "timeStamp", "trace", "warn"_x000D_
].forEach(method => {_x000D_
console[method] = () => {};_x000D_
});_x000D_
console.log("This message shouldn't be visible in console log");_x000D_
})();
_x000D_
I tried out most options mentioned previously but found this small and intuitive package to be the best: pympler
It's quite straight forward to trace objects that were not garbage-collected, check this small example:
install package via pip install pympler
from pympler.tracker import SummaryTracker
tracker = SummaryTracker()
# ... some code you want to investigate ...
tracker.print_diff()
The output shows you all the objects that have been added, plus the memory they consumed.
Sample output:
types | # objects | total size
====================================== | =========== | ============
list | 1095 | 160.78 KB
str | 1093 | 66.33 KB
int | 120 | 2.81 KB
dict | 3 | 840 B
frame (codename: create_summary) | 1 | 560 B
frame (codename: print_diff) | 1 | 480 B
This package provides a number of more features. Check pympler's documentation, in particular the section Identifying memory leaks.
Hover your mouse cursor over the name of the array, then hover over the little (+) icon that appears.
All of the above answers are correct and recommended; this answer is intended only as a last-resort if none of the aforementioned approaches can be used.
If all else fails, you can always recompile your program with various temporary debug-print statements (e.g. fprintf(stderr, "CHECKPOINT REACHED @ %s:%i\n", __FILE__, __LINE__);
) sprinkled throughout what you believe to be the relevant parts of your code. Then run the program, and observe what the was last debug-print printed just before the crash occurred -- you know your program got that far, so the crash must have happened after that point. Add or remove debug-prints, recompile, and run the test again, until you have narrowed it down to a single line of code. At that point you can fix the bug and remove all of the temporary debug-prints.
It's quite tedious, but it has the advantage of working just about anywhere -- the only times it might not is if you don't have access to stdout or stderr for some reason, or if the bug you are trying to fix is a race-condition whose behavior changes when the timing of the program changes (since the debug-prints will slow down the program and change its timing)
Well the answer was sitting right in front of me the whole time.
In SQL Server Management Studio 2008 there is a Debug button in the toolbar. Set a break point in a query window to step through.
I dismissed this functionality at the beginning because I didn't think of stepping INTO the stored procedure, which you can do with ease.
SSMS basically does what FinnNK mentioned with the MSDN walkthrough but automatically.
So easy! Thanks for your help FinnNK.
Edit: I should add a step in there to find the stored procedure call with parameters I used SQL Profiler on my database.
If you navigate to Sources you can see the pause button at the bottom of the DevTools. Basically there are 3 possible pause option in DevTools while debugging js file,
Don't pause on exceptions() :
The pause button will be in grey colour as if "Don't pause on exceptions" is active.
Pause on all exceptions() :
The pause button will be in blue colour as if "Pause on all exceptions" is active.
Pause on uncaught exceptions() :
The pause button will be in purple colour as if "Pause on uncaught exceptions" is active.
In your case, if you don't want to pause, select Don't pause on exceptions. To select, toggle the pause button till it become grey.
In all honesty, a combination of print and print_r() to print out the variables. I know that many prefer to use other more advanced methods but I find this the easiest to use.
I will say that I didn't fully appreciate this until I did some Microprocessor programming at Uni and was not able to use even this.
Since GDB 7.5 you can use these native Convenience Functions:
$_memeq(buf1, buf2, length)
$_regex(str, regex)
$_streq(str1, str2)
$_strlen(str)
Seems quite less problematic than having to execute a "foreign" strcmp()
on the process' stack each time the breakpoint is hit. This is especially true for debugging multithreaded processes.
Note your GDB needs to be compiled with Python support, which is not an issue with current linux distros. To be sure, you can check it by running
show configuration
inside GDB and searching for--with-python
. This little oneliner does the trick, too:$ gdb -n -quiet -batch -ex 'show configuration' | grep 'with-python' --with-python=/usr (relocatable)
For your demo case, the usage would be
break <where> if $_streq(x, "hello")
or, if your breakpoint already exists and you just want to add the condition to it
condition <breakpoint number> $_streq(x, "hello")
$_streq
only matches the whole string, so if you want something more cunning you should use $_regex
, which supports the Python regular expression syntax.
I find that the Browse With..
menu item only appears in Visual Studio 2010 when I Run as administrator
. And in that case it is available even while in debug mode.
This a great tool for debugging & logging php: PHp Debugger & Logger
It works right out of the box with just 3 lines of code. It can send messages to the js console for ajax debugging and can replace the error handler. It also dumps information about variables like var_dump() and print_r(), but in a more readable format. Very nice tool!
Chrome has a wonderful feature that simply takes the actual Android Chrome contents (incl. inspection etc.) onto the PC screen...
adb devices
to trigger the "allow communication with..." dialogue on the mobile device,chrome://inspect/#devices
on the PC.There's also a detailled manual on the net: https://www.till.net/technologie/html-javascript/remote-web-debugging-unter-android-und-chrome
(found that after adb logcat
showed nothing from the browser)
You can set this bookmarklet in your "Bookmarks Bar" in order to have Firebug lite always available in Chrome/Chromium browser (put this as the URL):
javascript:var firebug=document.createElement('script');firebug.setAttribute('src','http://getfirebug.com/releases/lite/1.2/firebug-lite-compressed.js');document.body.appendChild(firebug);(function(){if(window.firebug.version){firebug.init();}else{setTimeout(arguments.callee);}})();void(firebug);
While you are debugging in Visual Studio, display the "Output" window (View->Output). It will show there.
You have to check the Stack trace
How to do that?
on Your IDE Check the windows form LOGCAT
If you cant see the logcat windows go to this path and open it
window->show view->others->Android->Logcat
if you are using Google-Api go to this path
adb logcat > logcat.txt
There is no way to get the old password back. Log into the SQL server management console as a machine or domain admin using integrated authentication, you can then change any password (including sa).
Start the SQL service again and use the new created login (recovery in my example) Go via the security panel to the properties and change the password of the SA account.
Now write down the new SA password.
I think there's cleaner way where you don't have to create a new webclient (and it'll work with 3rd party libraries as well)
internal static class MyWebRequestCreator
{
private static IWebRequestCreate myCreator;
public static IWebRequestCreate MyHttp
{
get
{
if (myCreator == null)
{
myCreator = new MyHttpRequestCreator();
}
return myCreator;
}
}
private class MyHttpRequestCreator : IWebRequestCreate
{
public WebRequest Create(Uri uri)
{
var req = System.Net.WebRequest.CreateHttp(uri);
req.CookieContainer = new CookieContainer();
return req;
}
}
}
Now all you have to do is opt in for which domains you want to use this:
WebRequest.RegisterPrefix("http://example.com/", MyWebRequestCreator.MyHttp);
That means ANY webrequest that goes to example.com will now use your custom webrequest creator, including the standard webclient. This approach means you don't have to touch all you code. You just call the register prefix once and be done with it. You can also register for "http" prefix to opt in for everything everywhere.
use:
i.ToString("D10")
See Int32.ToString (MSDN), and Standard Numeric Format Strings (MSDN).
Or use String.PadLeft
. For example,
int i = 321;
Key = i.ToString().PadLeft(10, '0');
Would result in 0000000321
. Though String.PadLeft
would not work for negative numbers.
See String.PadLeft (MSDN).
Use CultureInfo
class to change your culture info.
var dutchCultureInfo = CultureInfo.CreateSpecificCulture("nl-NL");
var date1 = DateTime.ParseExact(date, "dd.MM.yyyy HH:mm:ss", dutchCultureInfo);
You could use a negative look-ahead assertion:
^(?!tbd_).+
Or a negative look-behind assertion:
(^.{1,3}$|^.{4}(?<!tbd_).*)
Or just plain old character sets and alternations:
^([^t]|t($|[^b]|b($|[^d]|d($|[^_])))).*
You can use this snippet with Jaydip answer for more than one button. just call it after getting a reference to the ET and Button Elements. I used vecotr button so you have to change the Button element to ImageButton:
private void setRemovableET(final EditText et, final ImageButton resetIB) {
et.setOnFocusChangeListener(new View.OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (hasFocus && et.getText().toString().length() > 0)
resetIB.setVisibility(View.VISIBLE);
else
resetIB.setVisibility(View.INVISIBLE);
}
});
resetIB.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
et.setText("");
resetIB.setVisibility(View.INVISIBLE);
}
});
et.addTextChangedListener(new TextWatcher() {
@Override
public void afterTextChanged(Editable s) {}
@Override
public void beforeTextChanged(CharSequence s, int start,
int count, int after) {
}
@Override
public void onTextChanged(CharSequence s, int start,
int before, int count) {
if(s.length() != 0){
resetIB.setVisibility(View.VISIBLE);
}else{
resetIB.setVisibility(View.INVISIBLE);
}
}
});
}
//by importing Decimal format we can do...
import java.util.Scanner;
import java.text.DecimalFormat;
public class Average
{
public static void main(String[] args)
{
int sub1,sub2,sub3,total;
Scanner in = new Scanner(System.in);
System.out.print("Enter Subject 1 Marks : ");
sub1 = in.nextInt();
System.out.print("Enter Subject 2 Marks : ");
sub2 = in.nextInt();
System.out.print("Enter Subject 3 Marks : ");
sub3 = in.nextInt();
total = sub1 + sub2 + sub3;
System.out.println("Total Marks of Subjects = " + total);
res = (float)total;
average = res/3;
System.out.println("Before Rounding Decimal.. Average = " +average +"%");
DecimalFormat df = new DecimalFormat("###.##");
System.out.println("After Rounding Decimal.. Average = " +df.format(average)+"%");
}
}
/* Output
Enter Subject 1 Marks : 72
Enter Subject 2 Marks : 42
Enter Subject 3 Marks : 52
Total Marks of Subjects = 166
Before Rounding Decimal.. Average = 55.333332%
After Rounding Decimal.. Average = 55.33%
*/
/* Output
Enter Subject 1 Marks : 98
Enter Subject 2 Marks : 88
Enter Subject 3 Marks : 78
Total Marks of Subjects = 264
Before Rounding Decimal.. Average = 88.0%
After Rounding Decimal.. Average = 88%
*/
/* You can Find Avrerage values in two ouputs before rounding average
And After rounding Average..*/
For me, setting JAVA_HOME did the trick (instead of unsetting, as in another answer given here). Either in Windows:
set JAVA_HOME="C:\Program Files\Java\jre7\"
Or inside R:
Sys.setenv(JAVA_HOME="C:\\Program Files\\Java\\jre7\\")
But what's probably the best solution (since rJava 0.9-4) is overriding within R the Windows JAVA_HOME setting altogether:
options(java.home="C:\\Program Files\\Java\\jre7\\")
library(rJava)
Another way of doing this would be using Aggregation. You should be able to achieve a similar result using a single query. Such as this:
Item.objects.values("contest").annotate(Count("id"))
I did not test this specific query, but this should output a count of the items for each value in contests as a dictionary.
In browsers up to and including IE9, this is done through conditional comments.
<!--[if IE]>
<style type="text/css">
IE specific CSS rules go here
</style>
<![endif]-->
I think you meant that you want to see the XML at the client, not trace it at the server. In that case, your answer is in the question I linked above, and also at How to Inspect or Modify Messages on the Client. But, since the .NET 4 version of that article is missing its C#, and the .NET 3.5 example has some confusion (if not a bug) in it, here it is expanded for your purpose.
You can intercept the message before it goes out using an IClientMessageInspector:
using System.ServiceModel.Dispatcher;
public class MyMessageInspector : IClientMessageInspector
{ }
The methods in that interface, BeforeSendRequest
and AfterReceiveReply
, give you access to the request and reply. To use the inspector, you need to add it to an IEndpointBehavior:
using System.ServiceModel.Description;
public class InspectorBehavior : IEndpointBehavior
{
public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
{
clientRuntime.MessageInspectors.Add(new MyMessageInspector());
}
}
You can leave the other methods of that interface as empty implementations, unless you want to use their functionality, too. Read the how-to for more details.
After you instantiate the client, add the behavior to the endpoint. Using default names from the sample WCF project:
ServiceReference1.Service1Client client = new ServiceReference1.Service1Client();
client.Endpoint.Behaviors.Add(new InspectorBehavior());
client.GetData(123);
Set a breakpoint in MyMessageInspector.BeforeSendRequest()
; request.ToString()
is overloaded to show the XML.
If you are going to manipulate the messages at all, you have to work on a copy of the message. See Using the Message Class for details.
Thanks to Zach Bonham's answer at another question for finding these links.
this query will alter the multiple column test it.
create table test(a int,B int,C int);
alter table test drop(a,B);
As vim's own help on set background
says, "Setting this option does not change the background color, it tells Vim what the background color looks like. For changing the background color, see |:hi-normal|."
For example
:highlight Normal ctermfg=grey ctermbg=darkblue
will write in white on blue on your color terminal.
After a data connection update, some UDF's were not executing. Using a subroutine, I was trying to recalcuate a single column with:
Sheets("mysheet").Columns("D").Calculate
But above statement had no effect. None of above solutions helped, except kambeeks suggestion to replace formulas worked and was fast if manual recalc turned on during update. Below code solved my problem, even if not exactly responsible to OP "kluge" comment, it provided a fast/reliable solution to force recalculation of user-specified cells.
Application.Calculation = xlManual
DoEvents
For Each mycell In Sheets("mysheet").Range("D9:D750").Cells
mycell.Formula = mycell.Formula
Next
DoEvents
Application.Calculation = xlAutomatic
Each component has a unique id which can be accessed as this._uid
.
<template>
<div>
<label :for="id">Label text for {{id}}</label>
<input :id="id" type="text" />
</div>
</template>
<script>
export default {
data () {
return {
id: null
}
},
mounted () {
this.id = this._uid
}
}
</script>
If you want more control over the ids you can for example, generate them inside a parent component.
>>> a="Hello\u2026"
>>> print a.decode('unicode-escape')
Hello…
The <a>
tag without the "href" can be handy when using multi-level menus and you need to expand the next level but don't want that menu label to be an active link. I have never had any issues using it that way.
Something like this (not tested, but should work)
Pass this as parameter in Html:
<input type="text" placeholder="some text" class="search" onkeydown="search(this)"/>
And alert the value of the parameter passed into the search function:
function search(e){
alert(e.value);
}
Using bash:
readarray -t LINES < file.txt
COUNT=${#LINES[@]}
for I in "${!LINES[@]}"; do
INDEX=$(( (I * 12 - 1) / COUNT + 1 ))
echo "${LINES[I]}" >> "file${INDEX}.txt"
done
Using awk:
awk '{
a[NR] = $0
}
END {
for (i = 1; i in a; ++i) {
x = (i * 12 - 1) / NR + 1
sub(/\..*$/, "", x)
print a[i] > "file" x ".txt"
}
}' file.txt
Unlike split
this one makes sure that number of lines are most even.
To populate ComboBox with JSON, you can consider using the: jqwidgets combobox, too.
See ?Control
or the R Language Definition:
> y=0
> while(y <5){ print( y<-y+1) }
[1] 1
[1] 2
[1] 3
[1] 4
[1] 5
So do_while
does not exist as a separate construct in R, but you can fake it with:
repeat( { expressions}; if (! end_cond_expr ) {break} )
If you want to see the help page you cannot type ?while
or ?repeat
at the console but rather need to use ?'repeat'
or ?'while'
. All the "control-constructs" including if
are on the same page and all need character quoting after the "?" so the interpreter doesn't see them as incomplete code and give you a continuation "+".
public string between2finer(string line, string delimiterFirst, string delimiterLast)
{
string[] splitterFirst = new string[] { delimiterFirst };
string[] splitterLast = new string[] { delimiterLast };
string[] splitRes;
string buildBuffer;
splitRes = line.Split(splitterFirst, 100000, System.StringSplitOptions.RemoveEmptyEntries);
buildBuffer = splitRes[1];
splitRes = buildBuffer.Split(splitterLast, 100000, System.StringSplitOptions.RemoveEmptyEntries);
return splitRes[0];
}
private void button1_Click(object sender, EventArgs e)
{
string manyLines = "Received: from exim by isp2.ihc.ru with local (Exim 4.77) \nX-Failed-Recipients: [email protected]\nFrom: Mail Delivery System <[email protected]>";
MessageBox.Show(between2finer(manyLines, "X-Failed-Recipients: ", "\n"));
}
How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": pd.Series.nunique})
duration user_id
date
2013-04-01 65 2
2013-04-02 45 1
>>> df.groupby("date").agg({"duration": np.sum, "user_id": lambda x: x.nunique()})
duration user_id
date
2013-04-01 65 2
2013-04-02 45 1
Below piece of code may help you out.
var infowindow = new google.maps.InfoWindow();
google.maps.event.addListener(marker, 'mouseover', (function(marker) {
return function() {
var content = address;
infowindow.setContent(content);
infowindow.open(map, marker);
}
})(marker));
Here is an article < How to locate multiple addresses on google maps with perfect zoom > that helped me achieved this. You can refer it for working JS Fiddle link and complete example.
you should use tagName
property and attr('type')
for inputs
Never use .onclick()
, or similar attributes from a userscript! (It's also poor practice in a regular web page).
The reason is that userscripts operate in a sandbox ("isolated world"), and onclick
operates in the target-page scope and cannot see any functions your script creates.
Always use addEventListener()
Doc (or an equivalent library function, like jQuery .on()).
So instead of code like:
something.outerHTML += '<input onclick="resetEmotes()" id="btnsave" ...>'
You would use:
something.outerHTML += '<input id="btnsave" ...>'
document.getElementById ("btnsave").addEventListener ("click", resetEmotes, false);
For the loop, you can't pass data to an event listener like that See the doc. Plus every time you change innerHTML
like that, you destroy the previous event listeners!
Without refactoring your code much, you can pass data with data attributes. So use code like this:
for (i = 0; i < EmoteURLLines.length; i++) {
if (checkIMG (EmoteURLLines[i])) {
localStorage.setItem ("nameEmotes", JSON.stringify (EmoteNameLines));
localStorage.setItem ("urlEmotes", JSON.stringify (EmoteURLLines));
localStorage.setItem ("usageEmotes", JSON.stringify (EmoteUsageLines));
if (i == 0) {
console.log (resetSlot ());
}
emoteTab[2].innerHTML += '<span style="cursor:pointer;" id="'
+ EmoteNameLines[i]
+ '" data-usage="' + EmoteUsageLines[i] + '">'
+ '<img src="' + EmoteURLLines[i] + '" /></span>'
;
} else {
alert ("The maximum emote (" + EmoteNameLines[i] + ") size is (36x36)");
}
}
//-- Only add events when innerHTML overwrites are done.
var targetSpans = emoteTab[2].querySelectorAll ("span[data-usage]");
for (var J in targetSpans) {
targetSpans[J].addEventListener ("click", appendEmote, false);
}
Where appendEmote is like:
function appendEmote (zEvent) {
//-- this and the parameter are special in event handlers. see the linked doc.
var emoteUsage = this.getAttribute ("data-usage");
shoutdata.value += emoteUsage;
}
.outerHTML
or .innerHTML
, you trash any event handlers on the affected nodes. If you use this method beware of that fact.Create a property (or method) on FormOptions
, say GetMyResult
:
using (FormOptions formOptions = new FormOptions())
{
formOptions.ShowDialog();
string result = formOptions.GetMyResult;
// do what ever with result...
}
You have to add the selector parameter, otherwise the event is directly bound instead of delegated, which only works if the element already exists (so it doesn't work for dynamically loaded content).
See http://api.jquery.com/on/#direct-and-delegated-events
Change your code to
$(document.body).on('click', '.update' ,function(){
The jQuery set receives the event then delegates it to elements matching the selector given as argument. This means that contrary to when using live
, the jQuery set elements must exist when you execute the code.
As this answers receives a lot of attention, here are two supplementary advises :
1) When it's possible, try to bind the event listener to the most precise element, to avoid useless event handling.
That is, if you're adding an element of class b
to an existing element of id a
, then don't use
$(document.body).on('click', '#a .b', function(){
but use
$('#a').on('click', '.b', function(){
2) Be careful, when you add an element with an id, to ensure you're not adding it twice. Not only is it "illegal" in HTML to have two elements with the same id but it breaks a lot of things. For example a selector "#c"
would retrieve only one element with this id.
Thanks jbaliuka for the suggestion. I opened the registry editor (by typing regedit in cmd) and going to HKEY_CLASSES_ROOT > jarfile > shell > open > command, then opening (Default) and changing the value from
"C:\Program Files\Java\jre7\bin\javaw.exe" -jar "%1" %*
to
"C:\Program Files\Java\jre7\bin\java.exe" -jar "%1" %*
(I just removed the w in javaw.exe.) After that you have to right click a jar -> open with -> choose default program -> navigate to your java folder and open \jre7\bin\java.exe (or any other java.exe file in you java folder). If it doesn't work, try switching to javaw.exe, open a jar file with it, then switch back.
I don't know anything about editing the registry except that it's dangerous, so you might wanna back it up before doing this (in the top bar, File>Export).
If the above solutions are not working for me, one thing to check is that you actually have the public key too (typically id_rsa.pub
). It is unusual not to, but that was the cause for me.
To create your public key from your private key:
ssh-keygen -y -f ~/.ssh/id_rsa > ~/.ssh/id_rsa.pub
Implementing the SearchView without the use of the menu.xml
file and open through button
In your Activity
we need to use the method of the onCreateOptionsMenu
method in which we will programmatically inflate the SearchView
private MenuItem searchMenu;
private String mSearchString="";
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
SearchManager searchManager = (SearchManager) StoreActivity.this.getSystemService(Context.SEARCH_SERVICE);
SearchView mSearchView = new SearchView(getSupportActionBar().getThemedContext());
mSearchView.setQueryHint(getString(R.string.prompt_search)); /// YOUR HINT MESSAGE
mSearchView.setMaxWidth(Integer.MAX_VALUE);
searchMenu = menu.add("searchMenu").setVisible(false).setActionView(mSearchView);
searchMenu.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM | MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
assert searchManager != null;
mSearchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
mSearchView.setIconifiedByDefault(false);
SearchView.OnQueryTextListener queryTextListener = new SearchView.OnQueryTextListener() {
public boolean onQueryTextChange(String newText) {
mSearchString = newText;
return true;
}
public boolean onQueryTextSubmit(String query) {
mSearchString = query;
searchMenu.collapseActionView();
return true;
}
};
mSearchView.setOnQueryTextListener(queryTextListener);
return true;
}
And in your Activity class, you can open the SearchView
on any button click on toolbar like below
YOUR_BUTTON.setOnClickListener(view -> {
searchMenu.expandActionView();
});
I have done this as following.I have use getDropDownView() and getView() methods.
Use getDropDownView()
for opened Spinner.
@Override
public View getDropDownView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
if (!((LabelItem) getItem(position)).isEnabled()) {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
} else {
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item));
}
return view;
}
And Use getView()
for closed Spinner.
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater vi = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = vi.inflate(R.layout.context_row_icon, null);
}
TextView mTitle = (TextView) view.findViewById(R.id.context_label);
ImageView flag = (ImageView) view.findViewById(R.id.context_icon);
mTitle.setText(values[position].getLabel(activity));
mTitle.setTextColor(activity.getResources().getColor(R.color.context_item_disabled));
return view;
}
You need to pass it as an XML parameter.
Edit: quick code from my project to give you an idea:
CREATE PROCEDURE [dbo].[GetArrivalsReport]
@DateTimeFrom AS DATETIME,
@DateTimeTo AS DATETIME,
@HostIds AS XML(xsdArrayOfULong)
AS
BEGIN
DECLARE @hosts TABLE (HostId BIGINT)
INSERT INTO @hosts
SELECT arrayOfUlong.HostId.value('.','bigint') data
FROM @HostIds.nodes('/arrayOfUlong/u') as arrayOfUlong(HostId)
Then you can use the temp table to join with your tables. We defined arrayOfUlong as a built in XML schema to maintain data integrity, but you don't have to do that. I'd recommend using it so here's a quick code for to make sure you always get an XML with longs.
IF NOT EXISTS (SELECT * FROM sys.xml_schema_collections WHERE name = 'xsdArrayOfULong')
BEGIN
CREATE XML SCHEMA COLLECTION [dbo].[xsdArrayOfULong]
AS N'<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="arrayOfUlong">
<xs:complexType>
<xs:sequence>
<xs:element maxOccurs="unbounded"
name="u"
type="xs:unsignedLong" />
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>';
END
GO
'Is not possible!'
Oh yes it is ....
//------------------------------
function unloadJS(scriptName) {
var head = document.getElementsByTagName('head').item(0);
var js = document.getElementById(scriptName);
js.parentNode.removeChild(js);
}
//----------------------
function unloadAllJS() {
var jsArray = new Array();
jsArray = document.getElementsByTagName('script');
for (i = 0; i < jsArray.length; i++){
if (jsArray[i].id){
unloadJS(jsArray[i].id)
}else{
jsArray[i].parentNode.removeChild(jsArray[i]);
}
}
}
How about trying this:
using (XmlTextReader reader = new XmlTextReader(xmlPath))
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
//do your code here
}
}
}
I usually place commands in parentheses $(commandStr)
, if that doesn't help I find bash debug mode great, run the script as bash -x script
You also can do it with functional programming:
from functools import reduce
reduce(lambda df1, df2: df1.merge(df2, "outer"), mydfs)
MyComponentComponent
in MyComponentModule
MyComponentComponent
to exports
attribute of MyComponentModule
mycomponentModule.ts
@NgModule({
imports: [],
exports: [MyComponentComponent],
declarations: [MyComponentComponent],
providers: [],
})
export class MyComponentModule {
}
MyComponentModule
to your AppModule imports
attributeapp.module.ts
@NgModule({
imports: [MyComponentModule]
declarations: [AppComponent],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule {}
Important If your still have that error, Stop your server ctrl+c
from terminal, and run it again ng serve -o
OSX users can follow by Nicolay77 or mikkom that uses the mdbtools utility. You can install it via Homebrew. Just have your homebrew installed and then go
$ homebrew install mdbtools
Then create one of the scripts described by the guys and use it. I've used mikkom's one, converted all my mdb files into sql.
$ ./to_mysql.sh myfile.mdb > myfile.sql
(which btw contains more than 1 table)
Enum singleton
The simplest way to implement a Singleton that is thread-safe is using an Enum
public enum SingletonEnum {
INSTANCE;
public void doSomething(){
System.out.println("This is a singleton");
}
}
This code works since the introduction of Enum in Java 1.5
Double checked locking
If you want to code a “classic” singleton that works in a multithreaded environment (starting from Java 1.5) you should use this one.
public class Singleton {
private static volatile Singleton instance = null;
private Singleton() {
}
public static Singleton getInstance() {
if (instance == null) {
synchronized (Singleton.class){
if (instance == null) {
instance = new Singleton();
}
}
}
return instance ;
}
}
This is not thread-safe before 1.5 because the implementation of the volatile keyword was different.
Early loading Singleton (works even before Java 1.5)
This implementation instantiates the singleton when the class is loaded and provides thread safety.
public class Singleton {
private static final Singleton instance = new Singleton();
private Singleton() {
}
public static Singleton getInstance() {
return instance;
}
public void doSomething(){
System.out.println("This is a singleton");
}
}
This is not an error, it is a warning from your Microsoft compiler.
Select your project and click "Properties" in the context menu.
In the dialog, chose Configuration Properties
-> C/C++
-> Preprocessor
In the field PreprocessorDefinitions add ;_CRT_SECURE_NO_WARNINGS
to turn those warnings off.
You've an number of options, depending on how you want to play it:
isNaN(val)
Returns true if val is not a number, false if it is. In your case, this is probably what you need.
isFinite(val)
Returns true if val, when cast to a String, is a number and it is not equal to +/- Infinity
/^\d+$/.test(val)
Returns true if val, when cast to a String, has only digits (probably not what you need).
You can use the Android NDK, but answers should note that the Android NDK app is not free to use and there's no clear open source route to programming Android on Android in an increasingly Android-driven market that began as open source, with Android developer support or the extensiveness of the NDK app, meaning you're looking at abandoning Android as any kind of first steps programming platform without payments.
Note: I consider subscription requests as payments under duress and this is a freemium context which continues to go undefeated by the open source community.
2,147,483,647 bytes, since the value is a signed integer (Int32). That's probably more than you'll need.
result_list = [int(v) for k,v in qs[0].items()]
qs is a list, qs[0] is the dict which you want!
Service
extends ContextWrapper
ContextWrapper
extends Context
So....
Context context = this;
(in Service or Activity Class)
public static void BubbleSort(int[] a)
{
for (int i = 1; i <= a.Length - 1; ++i)
for (int j = 0; j < a.Length - i; ++j)
if (a[j] > a[j + 1])
Swap(ref a[j], ref a[j + 1]);
}
public static void Swap(ref int x, ref int y)
{
int temp = x;
x = y;
y = temp;
}
Thank you @Blorgbeard for the genious idea.
By the way Blorgbeard's query was not working for me so I edited it:
DECLARE @Table_Name as VARCHAR(50) SET @Table_Name = 'MyTable' -- put here you table name
DECLARE @Column_Like as VARCHAR(20) SET @Column_Like = '%something%' -- put here you element
DECLARE @sql NVARCHAR(MAX) SET @sql = 'select '
SELECT @sql = @sql + '[' + sys.columns.name + '],'
FROM sys.columns
JOIN sys.tables ON sys.columns.object_id = tables.object_id
WHERE sys.columns.name like @Column_Like
and sys.tables.name = @Table_Name
SET @sql = left(@sql,len(@sql)-1) -- remove trailing comma
SET @sql = @sql + ' from ' + @Table_Name
EXEC sp_executesql @sql
On linux
download slimerjs (slimerjs.org)
download firefox version 59
add this environment variable: export SLIMERJSLAUNCHER=/home/en/Letöltések/firefox59/firefox/firefox
on slimerjs download page use this .js program (./slomerjs program.js):
var page = require('webpage').create();
page.open(
'http://www.google.com/search?q=görény',
function()
{
page.render('goo2.pdf');
phantom.exit();
}
);
Use pdftotext to get text on the page.
I think you should make a class for this anonymous type. That'd be the most sensible thing to do in my opinion. But if you really don't want to, you could use dynamics:
public void LogEmployees (IEnumerable<dynamic> list)
{
foreach (dynamic item in list)
{
string name = item.Name;
int id = item.Id;
}
}
Note that this is not strongly typed, so if, for example, Name changes to EmployeeName, you won't know there's a problem until runtime.
For Chrome Version 52.0.2743.116:
In Chrome's Developer Tools, bring up the 'Search' panel by hitting Ctrl
+Shift
+F
.
Type in the name of the element you're trying to find.
Results for binded elements should appear in the panel and state the file they're located in.
For the replacement portion, Python uses \1
the way sed and vi do, not $1
the way Perl, Java, and Javascript (amongst others) do. Furthermore, because \1
interpolates in regular strings as the character U+0001, you need to use a raw string or \escape it.
Python 3.2 (r32:88445, Jul 27 2011, 13:41:33)
[GCC 4.0.1 (Apple Inc. build 5465)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> method = 'images/:id/huge'
>>> import re
>>> re.sub(':([a-z]+)', r'<span>\1</span>', method)
'images/<span>id</span>/huge'
>>>
DateTime birthDate = new DateTime(1981, 8, 9);
Console.WriteLine ("I was born on the {0}. of {1}, {2}.", birthDate.Day, birthDate.ToString("MMMM"), birthDate.Year);
/* The above code will say:
"I was born on the 9. of august, 1981."
"dd" converts to the day (01 thru 31).
"ddd" converts to 3-letter name of day (e.g. mon).
"dddd" converts to full name of day (e.g. monday).
"MMM" converts to 3-letter name of month (e.g. aug).
"MMMM" converts to full name of month (e.g. august).
"yyyy" converts to year.
*/
I've found that the simplejson
module gives more descriptive errors in many cases where the built-in json
module is vague. For instance, for the case of having a comma after the last item in a list:
json.loads('[1,2,]')
....
ValueError: No JSON object could be decoded
which is not very descriptive. The same operation with simplejson
:
simplejson.loads('[1,2,]')
...
simplejson.decoder.JSONDecodeError: Expecting object: line 1 column 5 (char 5)
Much better! Likewise for other common errors like capitalizing True
.
You can make a method just like new Date(year,month,date)
in your code by using Calendar
class.
private Date getDate(int year,int month,int date){
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month-1);
cal.set(Calendar.DAY_OF_MONTH, day);
return cal.getTime();
}
It will work just like the deprecated constructor of Date
You can use this Autoit script to handle the login popup:
WinWaitActive("Authentication Required","","10")
If WinExists("Authentication Required") Then
Send("username{TAB}")
Send("Password{Enter}")
EndIf'
The source element as a jQuery object should be obtained via
var $el = $(event.target);
This gets you the source of the click, rather than the element that the click function was assigned too. Can be useful when the click event is on a parent object EG.a click event on a table row, and you need the cell that was clicked
$("tr").click(function(event){
var $td = $(event.target);
});
As per this link you may also have to prefix your param with &rp if not using proxy syntax
A simpler solution:
progess_drawable_blue
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<solid
android:color="@color/disabled" />
</shape>
</item>
<item
android:id="@android:id/progress">
<clip>
<shape>
<solid
android:color="@color/blue" />
</shape>
</clip>
</item>
</layer-list>
lapsList() {
return this.state.laps.map((data) => {
return (
<View><Text>{data.time}</Text></View>
)
})
}
You forgot to return the map. this code will resolve the issue.
In HTML:
<div (mouseover)="funcName1() (mouseout)="funcName2()">
// Do what you want
</div>
In TypeScript:
funcName1(){
//Do Something
}
funcName2(){
//Do Something
}
You can regroup your steps functions calls in a facade function :
sub facade()
call step1()
call step2()
call step3()
call step4()
call step5()
end sub
Then, let your error handling be in an upper function that calls the facade :
sub main()
On error resume next
call facade()
If Err.Number <> 0 Then
' MsgBox or whatever. You may want to display or log your error there
msgbox Err.Description
Err.Clear
End If
On Error Goto 0
end sub
Now, let's suppose step3()
raises an error. Since facade()
doesn't handle errors (there is no On error resume next
in facade()
), the error will be returned to main()
and step4()
and step5()
won't be executed.
Your error handling is now refactored in 1 code block
I just copy the file name Queue.py in the */lib/python2.7/
to queue.py and that solved my problem.
The solution provided by ebeneditos works perfectly.
But if you have cv2.imwrite()
in several sections of a large code snippet and you want to change the path where the images get saved, you will have to change the path at every occurrence of cv2.imwrite()
individually.
As Soltius stated, here is a better way. Declare a path and pass it as a string into cv2.imwrite()
import cv2
import os
img = cv2.imread('1.jpg', 1)
path = 'D:/OpenCV/Scripts/Images'
cv2.imwrite(os.path.join(path , 'waka.jpg'), img)
cv2.waitKey(0)
Now if you want to modify the path, you just have to change the path
variable.
Edited based on solution provided by Kallz
Here is a simple snippet that sorts a javascript representation of a Json.
function isObject(v) {
return '[object Object]' === Object.prototype.toString.call(v);
};
JSON.sort = function(o) {
if (Array.isArray(o)) {
return o.sort().map(JSON.sort);
} else if (isObject(o)) {
return Object
.keys(o)
.sort()
.reduce(function(a, k) {
a[k] = JSON.sort(o[k]);
return a;
}, {});
}
return o;
}
It can be used as follows:
JSON.sort({
c: {
c3: null,
c1: undefined,
c2: [3, 2, 1, 0],
},
a: 0,
b: 'Fun'
});
That will output:
{
a: 0,
b: 'Fun',
c: {
c2: [3, 2, 1, 0],
c3: null
}
}
@Pantelis answer somehow steered me to a solution for a similar misunderstanding. A message board project I'm working on needs to show an optional image. I was having fits trying to get the src=imagefile to concatenate a fixed path and variable filename string until I saw the quirky use of "''" quotes :-)
<template id="symp-tmpl">
<div>
<div v-for="item in items" style="clear: both;">
<div v-if="(item.imagefile !== '[none]')">
<img v-bind:src="'/storage/userimages/' + item.imagefile">
</div>
sub: <span>@{{ item.subject }}</span>
<span v-if="(login == item.author)">[edit]</span>
<br>@{{ item.author }}
<br>msg: <span>@{{ item.message }}</span>
</div>
</div>
</template>
var pdf = MyPdf.pdf;
window.open(pdf);
This will open the pdf document in a full window from JavaScript
A function to open windows would look like this:
function openPDF(pdf){
window.open(pdf);
return false;
}
Late answer - I found the other answers useful - and wanted to add a bit extra.
How do I dump preprocessor macros coming from a particular header file?
echo "#include <sys/socket.h>" | gcc -E -dM -
or (thanks to @mymedia for the suggestion):
gcc -E -dM -include sys/socket.h - < /dev/null
In particular, I wanted to see what SOMAXCONN was defined to on my system. I know I could just open up the standard header file, but sometimes I have to search around a bit to find the header file locations. Instead I can just use this one-liner:
$ gcc -E -dM -include sys/socket.h - < /dev/null | grep SOMAXCONN
#define SOMAXCONN 128
$
You can send email natively from within SQL Server using Database Mail. This is a great tool for notifying sysadmins about errors or other database events. You could also use it to send a report or an email message to an end user. The basic syntax for this is:
EXEC msdb.dbo.sp_send_dbmail
@recipients='[email protected]',
@subject='Testing Email from SQL Server',
@body='<p>It Worked!</p><p>Email sent successfully</p>',
@body_format='HTML',
@from_address='Sender Name <[email protected]>',
@reply_to='[email protected]'
Before use, Database Mail must be enabled using the Database Mail Configuration Wizard, or sp_configure. A database or Exchange admin might need to help you configure this. See http://msdn.microsoft.com/en-us/library/ms190307.aspx and http://www.codeproject.com/Articles/485124/Configuring-Database-Mail-in-SQL-Server for more information.
Here is how you do it:
$http.get("/url/to/resource/", {params:{"param1": val1, "param2": val2}})
.then(function (response) { /* */ })...
Angular takes care of encoding the parameters.
Maxim Shoustin's answer does not work ({method:'GET', url:'/search', jsonData}
is not a valid JavaScript literal) and JeyTheva's answer, although simple, is dangerous as it allows XSS (unsafe values are not escaped when you concatenate them).
For this your android application must have uploaded into the android market. when you upload it on the android market then use the following code to open the market with your android application.
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("market://details?id=<packagename>"));
startActivity(intent);
If you want it to download and install from your own server then use the following code
Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.example.com/sample/test.apk"));
startActivity(intent);
The below examples might help understand:
def add_nums1(x,y):
print(x+y)
def add_nums2(x,y):
return x+y
#----Function output is usable for further processing
add_nums2(10,20)/2
15.0
#----Function output can't be used further (gives TypeError)
add_nums1(10,20)/2
30
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-124-e11302d7195e> in <module>
----> 1 add_nums1(10,20)/2
TypeError: unsupported operand type(s) for /: 'NoneType' and 'int'
You can use all
> all(1:6 %in% 0:36)
[1] TRUE
> all(1:60 %in% 0:36)
[1] FALSE
On a similar note, if you want to check whether any of the elements is TRUE you can use any
> any(1:6 %in% 0:36)
[1] TRUE
> any(1:60 %in% 0:36)
[1] TRUE
> any(50:60 %in% 0:36)
[1] FALSE
I solved the problem using Dmitry Komin solution, but with different CSS syntax to make it works directly in browser.
CSS
@media(min-width: 1400px){
.my-modal > .modal-lg {
width: 1308px;
}
}
JS is the same:
var modal = $modal.open({
animation: true,
templateUrl: 'modalTemplate.html',
controller: 'modalController',
size: 'lg',
windowClass: 'my-modal'
});
The way I think of it is Debug.Assert is a way to establish a contract about how a method is supposed to be called, focusing on specifics about the values of a paramter (instead of just the type). For example, if you are not supposed to send a null in the second parameter you add the Assert around that parameter to tell the consumer not to do that.
It prevents someone from using your code in a boneheaded way. But it also allows that boneheaded way to go through to production and not give the nasty message to a customer (assuming you build a Release build).
All error codes are on "CFNetwork Errors Codes References" on the documentation (link)
A small extraction for CFURL and CFURLConnection Errors:
kCFURLErrorUnknown = -998,
kCFURLErrorCancelled = -999,
kCFURLErrorBadURL = -1000,
kCFURLErrorTimedOut = -1001,
kCFURLErrorUnsupportedURL = -1002,
kCFURLErrorCannotFindHost = -1003,
kCFURLErrorCannotConnectToHost = -1004,
kCFURLErrorNetworkConnectionLost = -1005,
kCFURLErrorDNSLookupFailed = -1006,
kCFURLErrorHTTPTooManyRedirects = -1007,
kCFURLErrorResourceUnavailable = -1008,
kCFURLErrorNotConnectedToInternet = -1009,
kCFURLErrorRedirectToNonExistentLocation = -1010,
kCFURLErrorBadServerResponse = -1011,
kCFURLErrorUserCancelledAuthentication = -1012,
kCFURLErrorUserAuthenticationRequired = -1013,
kCFURLErrorZeroByteResource = -1014,
kCFURLErrorCannotDecodeRawData = -1015,
kCFURLErrorCannotDecodeContentData = -1016,
kCFURLErrorCannotParseResponse = -1017,
kCFURLErrorInternationalRoamingOff = -1018,
kCFURLErrorCallIsActive = -1019,
kCFURLErrorDataNotAllowed = -1020,
kCFURLErrorRequestBodyStreamExhausted = -1021,
kCFURLErrorFileDoesNotExist = -1100,
kCFURLErrorFileIsDirectory = -1101,
kCFURLErrorNoPermissionsToReadFile = -1102,
kCFURLErrorDataLengthExceedsMaximum = -1103,
You could use Thread.Sleep()
function, e.g.
int milliseconds = 2000;
Thread.Sleep(milliseconds);
that completely stops the execution of the current thread for 2 seconds.
Probably the most appropriate scenario for Thread.Sleep
is when you want to delay the operations in another thread, different from the main e.g. :
MAIN THREAD --------------------------------------------------------->
(UI, CONSOLE ETC.) | |
| |
OTHER THREAD ----- ADD A DELAY (Thread.Sleep) ------>
For other scenarios (e.g. starting operations after some time etc.) check Cody's answer.
Decimal. If you choose double you're leaving yourself open to rounding errors
It's probably because MySQL is installed but not yet running.
To verify that it's running, open up Activity Monitor and under "All Processes", search and verify you see the process "mysqld".
You can start it by installing "MySQL.prefPane".
Here is the complete tutorial which helped me: http://obscuredclarity.blogspot.in/2009/08/install-mysql-on-mac-os-x.html
If you will divide by some large value you will get a huge amount of duplicates one after other. What you need to do is to take modulo of the %RANDOM% value:
@echo off
REM
SET maxvalue=10
SET minvalue=1
SETLOCAL
SET /A tmpRandom=((%RANDOM%)%%(%maxvalue%))+(%minvalue%)
echo "Tmp random: %tmpRandom%"
echo "Random: %RANDOM%"
ENDLOCAL
I previously had this problem with my EC2 instance (I was serving couchdb to serve resources -- am considering Amazon's S3 for the future).
One thing to check (assuming Ec2) is that the couchdb port is added to your open ports within your security policy.
I specifically encountered
"[Errno 111] Connection refused"
over EC2 when the instance was stopped and started. The problem seems to be a pidfile race. The solution for me was killing couchdb (entirely and properly) via:
pkill -f couchdb
and then restarting with:
/etc/init.d/couchdb restart
Use DateTime.AddDays()
(MSDN Documentation DateTime.AddDays Method).
DateTime tomorrow = DateTime.Now.AddDays(1);
DateTime yesterday = DateTime.Now.AddDays(-1);
No need to create overload methods, just use one single method with params as shown below
// Call params method with one to four integer constant parameters.
//
int sum0 = addTwoEach();
int sum1 = addTwoEach(1);
int sum2 = addTwoEach(1, 2);
int sum3 = addTwoEach(3, 3, 3);
int sum4 = addTwoEach(2, 2, 2, 2);
You can have both formats as an argument to the function date():
date("d-m-Y H:i:s")
Check the manual for more info : http://php.net/manual/en/function.date.php
As pointed out by @ThomasVdBerge to display minutes you need the 'i' character
A good example of the 307 Internal Redirect
in action is when Google Chrome encounters a HTTP call to a domain it knows as requiring Strict Transport Security.
The browser redirects seamlessly, using the same method as the original call.
I've had a stubborn image too, that wouldn't go away by setting the Image and InitialImage to null. To remove the image from the pictureBox for good, I had to use the code below, by calling Application.DoEvents() repeatedly:
Application.DoEvents();
if (_pictureBox.Image != null)
_pictureBox.Image.Dispose();
_pictureBox.Image = null;
Application.DoEvents();
if (_pictureBox.InitialImage != null)
_pictureBox.InitialImage.Dispose();
_pictureBox.InitialImage = null;
_pictureBox.Update();
Application.DoEvents();
_pictureBox.Refresh();
It is depends on the case and the usage. Generally, in TypeScript there are no default values for interfaces.
If you don't use the default values
You can declare x
as:
let x: IX | undefined; // declaration: x = undefined
Then, in your init function you can set real values:
x = {
a: 'xyz'
b: 123
c: new AnotherType()
};
In this way, x
can be undefined or defined - undefined
represents that the object is uninitialized, without set the default values, if they are unnecessary. This is loggically better than define "garbage".
If you want to partially assign the object:
You can define the type with optional properties like:
interface IX {
a: string,
b?: any,
c?: AnotherType
}
In this case you have to set only a
. The other types are marked with ?
which mean that they are optional and have undefined
as default value.
In any case you can use undefined
as a default value, it is just depends on your use case.
If are using some auth function of firebase, you can take token using this:
//------GET USER TOKEN-------
FirebaseUser mUser = FirebaseAuth.getInstance().getCurrentUser();
mUser.getToken(true)
.addOnCompleteListener(new OnCompleteListener<GetTokenResult>() {
public void onComplete(@NonNull Task<GetTokenResult> task) {
if (task.isSuccessful()) {
String idToken = task.getResult().getToken();
// ...
}
}
});
Work well if user are logged. getCurrentUser()
I ran into this exact exception, except it had nothing to do with parsing numerical inputs. So this isn't an answer to the OP's question, but I think it's acceptable to share the knowledge.
I'd declared a string and was formatting it for use with JQTree which requires curly braces ({}). You have to use doubled curly braces for it to be accepted as a properly formatted string:
string measurements = string.empty;
measurements += string.Format(@"
{{label: 'Measurement Name: {0}',
children: [
{{label: 'Measured Value: {1}'}},
{{label: 'Min: {2}'}},
{{label: 'Max: {3}'}},
{{label: 'Measured String: {4}'}},
{{label: 'Expected String: {5}'}},
]
}},",
drv["MeasurementName"] == null ? "NULL" : drv["MeasurementName"],
drv["MeasuredValue"] == null ? "NULL" : drv["MeasuredValue"],
drv["Min"] == null ? "NULL" : drv["Min"],
drv["Max"] == null ? "NULL" : drv["Max"],
drv["MeasuredString"] == null ? "NULL" : drv["MeasuredString"],
drv["ExpectedString"] == null ? "NULL" : drv["ExpectedString"]);
Hopefully this will help other folks who find this question but aren't parsing numerical data.
This is for those who want to overwrite the column cells quickly (without cutting and copying). This is the same as double-clicking the cell box but unlike double-clicking, it still works after the first try.
BONUS:
The shortcut for going to the bottom-most content (to double-check the copy) is Ctrl+⇓. To go back up you can use Ctrl+⇑ but if your top rows are frozen you'll also have to press Enter a few times.
mkdir -p newDir/subdir{1..8}
ls newDir/
subdir1 subdir2 subdir3 subdir4 subdir5 subdir6 subdir7 subdir8
Go to 'Applications', enter 'Python' folder, there should be a bash script called 'Update Shell Profile.command' or similar. Run that script and it should do it.
Update: It looks like you should not update it: how to change default python version?
on body tag's onLoad try setting it like
document.getElementById("subEmail").style.backgroundColor = "yellow";
and after that on change of that input field check if some value is there, or paint it yellow like
function checkFilled() {
var inputVal = document.getElementById("subEmail");
if (inputVal.value == "") {
inputVal.style.backgroundColor = "yellow";
}
}
If you want to ignore multiple API endpoints you can use as follow:
@Override
protected void configure(HttpSecurity httpSecurity) throws Exception {
httpSecurity.csrf().disable().authorizeRequests()
.antMatchers("/api/v1/**").authenticated()
.antMatchers("api/v1/authenticate**").permitAll()
.antMatchers("**").permitAll()
.and().exceptionHandling().and().sessionManagement()
.sessionCreationPolicy(SessionCreationPolicy.STATELESS);
}
You can simply import the data from the source file, read it, and save what you want to append to a variable. Then open the destination file, assign the list data inside to a new variable (presumably this will all be valid JSON), then use the 'append' function on this list variable and append the first variable to it. Viola, you have appended to the JSON list. Now just overwrite your destination file with the newly appended list (as JSON).
The 'a' mode in your 'open' function will not work here because it will just tack everything on to the end of the file, which will make it non-valid JSON format.
Your rules should be like this for this case however the message says that it is not the suggested way, but if you do this you can do inserts with no permission error
rules_version = '2';
service cloud.firestore {
match /databases/{database}/documents {
match /{document=**} {
allow read, write;
}
}
}
cd C:\path\dir
svn checkout https://server/path/to/trunk/dir/dir/parent_dir--depth empty
cd C:\path\dir\parent_dir
svn update filename.log
(Edit filename.log)
svn commit -m "this is a comment."
I have been trying different values with JSON.parse(value)
and it seems to do the work:
// true
Boolean(JSON.parse("true"));
Boolean(JSON.parse("1"));
Boolean(JSON.parse(1));
Boolean(JSON.parse(true));
// false
Boolean(JSON.parse("0"));
Boolean(JSON.parse(0));
Boolean(JSON.parse("false"));
Boolean(JSON.parse(false));
In your Safari menu bar click Safari > Preferences & then select the Advanced tab.
Select: "Show Develop menu in menu bar"
Now you can click Develop in your menu bar and choose Show Web Inspector
You can also right-click and press "Inspect element".
Normally it happens when the target is null. So better check the invoke target first then do the linq query.
Can't see anything wrong with your code, I use SqlExpress and it works fine when I use a connection string in the constructor.
You have created an App_Data folder in your project, haven't you?
To split a string to an array in awk
we use the function split()
:
awk '{split($0, a, ":")}'
# ^^ ^ ^^^
# | | |
# string | delimiter
# |
# array to store the pieces
If no separator is given, it uses the FS
, which defaults to the space:
$ awk '{split($0, a); print a[2]}' <<< "a:b c:d e"
c:d
We can give a separator, for example :
:
$ awk '{split($0, a, ":"); print a[2]}' <<< "a:b c:d e"
b c
Which is equivalent to setting it through the FS
:
$ awk -F: '{split($0, a); print a[1]}' <<< "a:b c:d e"
b c
In gawk you can also provide the separator as a regexp:
$ awk '{split($0, a, ":*"); print a[2]}' <<< "a:::b c::d e" #note multiple :
b c
And even see what the delimiter was on every step by using its fourth parameter:
$ awk '{split($0, a, ":*", sep); print a[2]; print sep[1]}' <<< "a:::b c::d e"
b c
:::
Let's quote the man page of GNU awk:
split(string, array [, fieldsep [, seps ] ])
Divide string into pieces separated by fieldsep and store the pieces in array and the separator strings in the seps array. The first piece is stored in
array[1]
, the second piece inarray[2]
, and so forth. The string value of the third argument, fieldsep, is a regexp describing where to split string (much as FS can be a regexp describing where to split input records). If fieldsep is omitted, the value of FS is used.split()
returns the number of elements created. seps is agawk
extension, withseps[i]
being the separator string betweenarray[i]
andarray[i+1]
. If fieldsep is a single space, then any leading whitespace goes intoseps[0]
and any trailing whitespace goes intoseps[n]
, where n is the return value ofsplit()
(i.e., the number of elements in array).
I tried on rooted Android 4.2.2 and this method works for me:
private void installApk(String filename) {
File file = new File(filename);
if(file.exists()){
try {
final String command = "pm install -r " + file.getAbsolutePath();
Process proc = Runtime.getRuntime().exec(new String[] { "su", "-c", command });
proc.waitFor();
} catch (Exception e) {
e.printStackTrace();
}
}
}
Here is a possible solution the solution #3 on my comments to blubill's answer:
yourscript.php
========================
<?php
$dir = '/home/user/Pictures';
$file_display = array('jpg', 'jpeg', 'png', 'gif');
if (file_exists($dir) == false)
{
echo 'Directory "', $dir, '" not found!';
}
else
{
$dir_contents = scandir($dir);
foreach ($dir_contents as $file)
{
$file_type = strtolower(end(explode('.', $file)));
if ($file !== '.' && $file !== '..' && in_array($file_type, $file_display) == true)
{
$name = basename($file);
echo "<img src='img.php?name={$name}' />";
}
}
}
?>
img.php
========================
<?php
$name = $_GET['name'];
$mimes = array
(
'jpg' => 'image/jpg',
'jpeg' => 'image/jpg',
'gif' => 'image/gif',
'png' => 'image/png'
);
$ext = strtolower(end(explode('.', $name)));
$file = '/home/users/Pictures/'.$name;
header('content-type: '. $mimes[$ext]);
header('content-disposition: inline; filename="'.$name.'";');
readfile($file);
?>
count of the contained lists in the outmost list
int count = data.size();
lambda to get the count of the contained inner lists
int count = data.stream().collect( summingInt(l -> l.size()) );
why don't you give LiteralControl a try?
myLitCtrl.Text="<h2><p>Notify:</p> Alert</h2>";
You can have multiple registries for scoped packages in your .npmrc
file. For example:
@polymer:registry=<url register A>
registry=http://localhost:4873/
Packages under @polymer
scope will be received from https://registry.npmjs.org, but the rest will be received from your local NPM.
There are three basic options:
1) If retrieval performance is paramount and it is practical to do so, use a form of hash table built once (and altered as/if the List changes).
2) If the List is conveniently sorted or it is practical to sort it and O(log n) retrieval is sufficient, sort and search.
3) If O(n) retrieval is fast enough or if it is impractical to manipulate/maintain the data structure or an alternate, iterate over the List.
Before writing code more complex than a simple iteration over the List, it is worth thinking through some questions.
Why is something different needed? (Time) performance? Elegance? Maintainability? Reuse? All of these are okay reasons, apart or together, but they influence the solution.
How much control do you have over the data structure in question? Can you influence how it is built? Managed later?
What is the life cycle of the data structure (and underlying objects)? Is it built up all at once and never changed, or highly dynamic? Can your code monitor (or even alter) its life cycle?
Are there other important constraints, such as memory footprint? Does information about duplicates matter? Etc.
In general, i agree with above answers that recommend to add maven dependency, but i prefer following solution.
Add a dependency with API classes for full JavaEE profile:
<properties>
<javaee-api.version>7.0</javaee-api.version>
<hibernate-entitymanager.version>5.1.3.Final</hibernate-entitymanager.version>
</properties>
<depencies>
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>${javaee-api.version}</version>
<scope>provided</scope>
</dependency>
</dependencies>
Also add dependency with particular JPA provider like antonycc suggested:
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-entitymanager</artifactId>
<version>${hibernate-entitymanager.version}</version>
</dependency>
Note <scope>provided</scope>
in API dependency section: this means that corresponding jar will not be exported into artifact's lib/
, but will be provided by application server. Make sure your application server implements specified version of JavaEE API.
You should use data.response
in your JS instead of json.response
.
As th function is not using $this
at all, you can add a static
keyword just after public and then call
Functions::filter($_GET['params']);
Avoiding the creation of an object just for one method call
If you want to wait for enter (so the user knocking the keyboard does not cause something un-intended to happen) use
sys.stdin.readline()
Arrays in JS have two types of properties:
Regular elements and associative properties (which are nothing but objects)
When you define a = new Array()
, you are defining an empty array. Note that there are no associative objects yet
When you define b = new Array(2)
, you are defining an array with two undefined locations.
In both your examples of 'a' and 'b', you are adding associative properties i.e. objects to these arrays.
console.log (a)
or console.log(b)
prints the array elements i.e. []
and [undefined, undefined]
respectively. But since a1/a2
and b1/b2
are associative objects inside their arrays, they can be logged only by console.log(a.a1, a.a2)
kind of syntax
The answer is given in @dku-rajkumar post.
ArrayList commonList = CollectionUtils.retainAll(list1,list2);
If you can't follow Max's suggestion of installing Blat (or any other utility) on your server, then perhaps your server already has software installed that can send emails.
I know that both Oracle and SqlServer have the capability to send email. You might have to work with your DBA to get that feature enabled and/or get the privilege to use it. Of course I can see how that might present its own set of problems and red tape. Assuming you can access the feature, it is fairly simple to have a batch file login to a database and send mail.
A batch file can easily run a VBScript via CSCRIPT. A quick google search finds many links showing how to send email with VBScript. The first one I happened to look at was http://www.activexperts.com/activmonitor/windowsmanagement/adminscripts/enterprise/mail/. It looks straight forward.
sys.argv
is a list.
This list is created by your command line, it's a list of your command line arguments.
For example:
in your command line you input something like this,
python3.2 file.py something
sys.argv
will become a list ['file.py', 'something']
In this case sys.argv[1] = 'something'
You can use this if you want to assign a background image on the backend:
divContent.Attributes.Add("style"," background-image:
url('images/icon_stock.gif');");
const cars = ['Volvo', 'Saab', 'Mervedes', 'Audi'];_x000D_
_x000D_
let domSelect = document.createElement('select');_x000D_
domSelect.multiple = true;_x000D_
document.getElementsByTagName('body')[0].appendChild(domSelect);_x000D_
_x000D_
_x000D_
for (const i in cars) {_x000D_
let optionSelect = document.createElement('option');_x000D_
_x000D_
let optText = document.createTextNode(cars[i]);_x000D_
optionSelect.appendChild(optText);_x000D_
_x000D_
document.getElementsByTagName('select')[0].appendChild(optionSelect);_x000D_
}
_x000D_
@@IDENTITY
returns the last identity value generated for any table in the current session, across all scopes. You need to be careful here, since it's across scopes. You could get a value from a trigger, instead of your current statement.
SCOPE_IDENTITY()
returns the last identity value generated for any table in the current session and the current scope. Generally what you want to use.
IDENT_CURRENT('tableName')
returns the last identity value generated for a specific table in any session and any scope. This lets you specify which table you want the value from, in case the two above aren't quite what you need (very rare). Also, as @Guy Starbuck mentioned, "You could use this if you want to get the current IDENTITY value for a table that you have not inserted a record into."
The OUTPUT
clause of the INSERT
statement will let you access every row that was inserted via that statement. Since it's scoped to the specific statement, it's more straightforward than the other functions above. However, it's a little more verbose (you'll need to insert into a table variable/temp table and then query that) and it gives results even in an error scenario where the statement is rolled back. That said, if your query uses a parallel execution plan, this is the only guaranteed method for getting the identity (short of turning off parallelism). However, it is executed before triggers and cannot be used to return trigger-generated values.
I like this one:
(viewController.navigationController?.presentingViewController
?? viewController.presentingViewController
?? viewController).dismiss(animated: true)
With Bash (not POSIX) you can use process substitution to get the current line inside a variable. This enables you to use quotes to escape special characters:
while read line ; do cp "$line" ~/bar ; done < <(find . | grep foo)
Just use like this
$("#sample_id").css("width", "");
$("#sample_id").css("height", "");
A "const function", denoted with the keyword const
after a function declaration, makes it a compiler error for this class function to change a member variable of the class. However, reading of a class variables is okay inside of the function, but writing inside of this function will generate a compiler error.
Another way of thinking about such "const function" is by viewing a class function as a normal function taking an implicit this
pointer. So a method int Foo::Bar(int random_arg)
(without the const at the end) results in a function like int Foo_Bar(Foo* this, int random_arg)
, and a call such as Foo f; f.Bar(4)
will internally correspond to something like Foo f; Foo_Bar(&f, 4)
. Now adding the const at the end (int Foo::Bar(int random_arg) const
) can then be understood as a declaration with a const this pointer: int Foo_Bar(const Foo* this, int random_arg)
. Since the type of this
in such case is const, no modifications of member variables are possible.
It is possible to loosen the "const function" restriction of not allowing the function to write to any variable of a class. To allow some of the variables to be writable even when the function is marked as a "const function", these class variables are marked with the keyword mutable
. Thus, if a class variable is marked as mutable, and a "const function" writes to this variable then the code will compile cleanly and the variable is possible to change. (C++11)
As usual when dealing with the const
keyword, changing the location of the const key word in a C++ statement has entirely different meanings. The above usage of const
only applies when adding const
to the end of the function declaration after the parenthesis.
const
is a highly overused qualifier in C++: the syntax and ordering is often not straightforward in combination with pointers. Some readings about const
correctness and the const
keyword:
There are many other answers suggesting different ways to do this, but they're all batch operations, and some of them throw away the original order. That might be okay depending on what you need, but if you want to iterate over the values in the order of the first instance of each value, and you want to remove the duplicates on-the-fly versus all at once, you could use this generator:
def uniqify(iterable):
seen = set()
for item in iterable:
if item not in seen:
seen.add(item)
yield item
This returns a generator/iterator, so you can use it anywhere that you can use an iterator.
for unique_item in uniqify([1, 2, 3, 4, 3, 2, 4, 5, 6, 7, 6, 8, 8]):
print(unique_item, end=' ')
print()
Output:
1 2 3 4 5 6 7 8
If you do want a list
, you can do this:
unique_list = list(uniqify([1, 2, 3, 4, 3, 2, 4, 5, 6, 7, 6, 8, 8]))
print(unique_list)
Output:
[1, 2, 3, 4, 5, 6, 7, 8]
If you have this problem here's a python script to change all the columns of your mysql database automatically.
#! /usr/bin/env python
import MySQLdb
host = "localhost"
passwd = "passwd"
user = "youruser"
dbname = "yourdbname"
db = MySQLdb.connect(host=host, user=user, passwd=passwd, db=dbname)
cursor = db.cursor()
cursor.execute("ALTER DATABASE `%s` CHARACTER SET 'utf8' COLLATE 'utf8_unicode_ci'" % dbname)
sql = "SELECT DISTINCT(table_name) FROM information_schema.columns WHERE table_schema = '%s'" % dbname
cursor.execute(sql)
results = cursor.fetchall()
for row in results:
sql = "ALTER TABLE `%s` convert to character set DEFAULT COLLATE DEFAULT" % (row[0])
cursor.execute(sql)
db.close()
I was facing an issue where Slick carousel wasn't refreshing on new data, it was appending new slides to previous ones, I found an answer which solved my problem, it's very simple.
try unslick, then assign your new data which is being rendered inside slick carousel, and then initialize slick again. these were the steps for me:
jQuery('.class-or-#id').slick('unslick');
myData = my-new-data;
jQuery('.class-or-#id').slick({slick options});
Note: check slick website for syntax just in case. also make sure you are not using unslick before slick is even initialized, what that means is simply initialize (like this jquery('.my-class').slick({options}
); the first ajax call and once it is initialized then follow above steps, you may wanna use if else
You need to open the file first. This doesn't work:
json_file = json.load('test.json')
But this works:
f = open('test.json')
json_file = json.load(f)
Try to do this:
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setDisplayHomeAsUpEnabled(false);
getSupportActionBar().setDisplayShowTitleEnabled(false);
and if you made your custom toolbar (which i presume you did) then you can use the simplest way possible to do this:
toolbarTitle = (TextView)findViewById(R.id.toolbar_title);
toolbarSubTitle = (TextView)findViewById(R.id.toolbar_subtitle);
toolbarTitle.setText("Title");
toolbarSubTitle.setText("Subtitle");
Same goes for any other views you put in your toolbar. Hope it helps.
reload current route in angular 2 very helpful link to reload current route in angualr 2 or 4
in this define two technique to do this
for more see above link
A better solution for "today" is:
SELECT * FROM jokes WHERE DATE(date) = DATE(NOW())
winrm set winrm/config/client '@{TrustedHosts="machineA,machineB"}'
There is a CocoaPods to facilitate the observation on NSNotificationCentr
for the keyboard's visibility here: https://github.com/levantAJ/Keyhi
pod 'Keyhi'
It could also be because, it might not be able to found the .dll file required. Either the file is not in the folder or is renamed. I faced the same issue and found that .dll file was missing in my bin folder some how.
According to the Python os module documentation os.popen has been deprecated since Python 2.6.
I think the solution for modern Python is to use check_output() from the subprocess module.
From the subprocess Python documentation:
subprocess.check_output(args, *, stdin=None, stderr=None, shell=False, universal_newlines=False) Run command with arguments and return its output as a byte string.
If the return code was non-zero it raises a CalledProcessError. The CalledProcessError object will have the return code in the returncode attribute and any output in the output attribute.
If you run through the following code in Python 2.7 (or later):
import subprocess
try:
print subprocess.check_output(["ping", "-n", "2", "-w", "2", "1.1.1.1"])
except subprocess.CalledProcessError, e:
print "Ping stdout output:\n", e.output
You should see an output that looks something like this:
Ping stdout output:
Pinging 1.1.1.1 with 32 bytes of data:
Request timed out.
Request timed out.
Ping statistics for 1.1.1.1:
Packets: Sent = 2, Received = 0, Lost = 2 (100% loss),
The e.output string can be parsed to suit the OPs needs.
If you want the returncode or other attributes, they are in CalledProccessError as can be seen by stepping through with pdb
(Pdb)!dir(e)
['__class__', '__delattr__', '__dict__', '__doc__', '__format__',
'__getattribute__', '__getitem__', '__getslice__', '__hash__', '__init__',
'__module__', '__new__', '__reduce__', '__reduce_ex__', '__repr__',
'__setattr__', '__setstate__', '__sizeof__', '__str__', '__subclasshook__',
'__unicode__', '__weakref__', 'args', 'cmd', 'message', 'output', 'returncode']
Although similar answers have been posted I'd like to contribute what seemed to be the easiest and cleanest fix to me. Assuming you are using the AngularUI datepicker and your initial value for the ng-Model does not get formatted simply adding the following directive to your project will fix the issue:
angular.module('yourAppName')
.directive('datepickerPopup', function (){
return {
restrict: 'EAC',
require: 'ngModel',
link: function(scope, element, attr, controller) {
//remove the default formatter from the input directive to prevent conflict
controller.$formatters.shift();
}
}
});
I found this solution in the Github AngularUI issues and therefore all credit goes to the people over there.
To replace anything that starts with "text" until the last character:
text.+(.*)$
Example
text hsjh sdjh sd jhsjhsdjhsdj hsd ^ last character
text.+(\ 123)
Example
text fuhfh283nfnd03no3 d90d3nd 3d 123 udauhdah au dauh ej2e ^ ^ From here To here
This is taken from the MVC sample project
@if (ViewBag.ShowRemoveButton)
{
using (Html.BeginForm("RemoveLogin", "Manage"))
{
@Html.AntiForgeryToken()
<div>
@Html.Hidden("company_name", account)
@Html.Hidden("returnUrl", Model.returnUrl)
<input type="submit" class="btn btn-default" value="Remove" title="Remove your email address from @account" />
</div>
}
}
You can use try
and catch
to use the different browser error messages.
IE and edge were mixed up, but I used the duck typing from Rob W (based on this project here: https://www.khanacademy.org/computer-programming/i-have-opera/2395080328).
var getBrowser = function() {
try {
var e;
var f = e.width;
} catch(e) {
var err = e.toString();
if(err.indexOf("not an object") !== -1) {
return "safari";
} else if(err.indexOf("Cannot read") !== -1) {
return "chrome";
} else if(err.indexOf("e is undefined") !== -1) {
return "firefox";
} else if(err.indexOf("Unable to get property 'width' of undefined or null reference") !== -1) {
if(!(false || !!document.documentMode) && !!window.StyleMedia) {
return "edge";
} else {
return "IE";
}
} else if(err.indexOf("cannot convert e into object") !== -1) {
return "opera";
} else {
return undefined;
}
}
};
Have you been using menu Analyze → Performance and Diagnostics? I have! It's awesome! But you may want to clean up.
Open the Performance Explorer. If you collapse all of the items in there, select all, then you can right click and do Delete.
My solution opens faster and is in general running much faster now.
Also you may notice changes to your sln
file as shown. For me, this section was deleted from the sln.
GlobalSection(Performance) = preSolution
HasPerformanceSessions = true
EndGlobalSection
FWIW regarding Apache 2.2 VirtualHosting and mod_mime tested on Debian Linux and OS X Leopard and Snow Leopard:
If you have a VirtualHost configuration you will want to add the types via the AddType Directive as follows at least at the bottom of the configuration as follows:
....
AddType font/opentype .otf
AddType font/ttf .ttf
</VirtualHost>
Tested against Chrome Unstable/Trunk and Safari WebKit Nightly which eliminates the mime octet-stream warnings for both the ttf and otf font types.
Note: .htaccess has zero effect when dealing with VirtualHosting. If you're developing for several sites you'll be using VirtualHosting development and each configuration will need these AddType additions.
Android's MVC pattern is (kind-of) implemented with their Adapter classes. They replace a controller with an "adapter." The description for the adapter states:
An Adapter object acts as a bridge between an AdapterView and the underlying data for that view.
I'm just looking into this for an Android application that reads from a database, so I don't know how well it works yet. However, it seems a little like Qt's Model-View-Delegate architecture, which they claim is a step up from a traditional MVC pattern. At least on the PC, Qt's pattern works fairly well.
Open the notebook in Jupyter Notebooks and look in the upper right corner of the screen.
It should say, for example, "Python [env_name]" if the language is Python and it's using an environment called env_name.
Activate a conda environment in your terminal using source activate <environment name>
before you run jupyter notebook
. This sets the default environment for Jupyter Notebooks. Otherwise, the [Root] environment is the default.
You can also create new environments from within Jupyter Notebook (home screen, Conda tab, and then click the plus sign).
And you can create a notebook in any environment you want. Select the "Files" tab on the home screen and click the "New" dropdown menu, and in that menu select a Python environment from the list.
Suppose I have integer = 0123456789101112
. Now, this integer can be converted into a string by the stringstream
class.
Here is the code in C++:
#include <bits/stdc++.h>
using namespace std;
int main()
{
int n,i;
string s;
stringstream st;
for(i=0;i<=12;i++)
{
st<<i;
}
s=st.str();
cout<<s<<endl;
return 0;
}
Also see...
How can I tell if I have uncommitted work in an Oracle transaction?
As explained in this thread on the cxf-user mailing list, rather than having the CXFServlet load its own spring context from user-webservice-servlet.xml
, you can just load the whole lot into the root context. Rename your existing user-webservice-servlet.xml
to some other name (e.g. user-webservice-beans.xml
) then change your contextConfigLocation
parameter to something like:
<servlet>
<servlet-name>myservlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>myservlet</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
/WEB-INF/user-webservice-beans.xml
</param-value>
</context-param>
<servlet>
<servlet-name>user-webservice</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>user-webservice</servlet-name>
<url-pattern>/UserService/*</url-pattern>
</servlet-mapping>
Use:
Get-ChildItem \\myserver\myshare\myshare\ -Directory | Select-Object -Property name | convertto-csv -NoTypeInformation | Out-File c:\temp\mydirectorylist.csv
Which does the following
Get-ChildItem \\myserver\myshare\myshare\ -Directory
Select-Object -Property name
convertto-csv -NoTypeInformation
Out-File c:\temp\mydirectorylist.csv
If you want access to a Docker container where there is a DB, you have to add a bash:
docker exec -it postgresql bash
postgresql is the container name.
Once inside, from the bash, access to DB e.g:
$psql -U postgres
If cars
is a sequence you can just do
for car in cars[1:-1]:
pass
source_list[::10]
is the most obvious, but this doesn't work for any iterable and is not memory efficient for large lists.itertools.islice(source_sequence, 0, None, 10)
works for any iterable and is memory-efficient, but probably is not the fastest solution for large list and big step.(source_list[i] for i in xrange(0, len(source_list), 10))
function addAttr(scope, el, attrName, attrValue) {
el.replaceWith($compile(el.clone().attr(attrName, attrValue))(scope));
}
To copy an already existing index.html
file into the dist
directory you can simply use the HtmlWebpackPlugin by specifying the source index.html
as a template.
const HtmlWebpackPlugin = require('html-webpack-plugin');
module.exports = {
// ...
plugins: [
new HtmlWebpackPlugin({
template: './path/to/index.html',
})
],
// ...
};
The created dist/index.html
file will be basically the same as your source file with the difference that bundled resources like .js files are injected with <script>
tags by webpack. Minification and further options can be configured and are documented on github.
Yes, below is a link of docs.Oracle where you can find complete list of escape characters in Java.
Escape characters are always preceded with "\" and used to perform some specific task like go to next line etc.
For more Details on Escape Character Refer following link:
https://docs.oracle.com/javase/tutorial/java/data/characters.html
One obvious and straightforward possibility is to use "if-else conditions". In that example
x <- c(1, 2, 4)
y <- c(1, 4, 5)
w <- ifelse(x <= 1, "good", ifelse((x >= 3) & (x <= 5), "bad", "fair"))
data.frame(x, y, w)
** For the additional question in the edit** Is that what you expect ?
> d1 <- c("e", "c", "a")
> d2 <- c("e", "a", "b")
>
> w <- ifelse((d1 == "e") & (d2 == "e"), 1,
+ ifelse((d1=="a") & (d2 == "b"), 2,
+ ifelse((d1 == "e"), 3, 99)))
>
> data.frame(d1, d2, w)
d1 d2 w
1 e e 1
2 c a 99
3 a b 2
If you do not feel comfortable with the ifelse
function, you can also work with the if
and else
statements for such applications.
In a talk about core containers internals in Python at PyCon 2012, Raymond Hettinger is suggesting to use [None] * n
to pre-allocate the length you want.
Slides available as PPT or via Google
The whole slide deck is quite interesting. The presentation is available on YouTube, but it doesn't add much to the slides.
http://codemachine.com/downloads.html
Has all the individual msi files
If you are getting back a sun.awt.image.ToolkitImage
, you can cast the Image to that, and then use getBufferedImage() to get the BufferedImage
.
So instead of your last line of code where you are casting you would just do:
BufferedImage buffered = ((ToolkitImage) image).getBufferedImage();
Have you considered doing this from the layout.xml
? You could set for your ImageView
the ScaleType to android:scaleType="centerCrop"
and set the dimensions of the image in the ImageView
inside the layout.xml
.
CDasherComponent
has a body for the destructor? It's definitely not here - the question is if it is in the .cc file.CDasherModule
should explicitly define its destructor virtual
.CGameModule
has an extra }
at the end (after the }; // for the class
).CGameModule
being linked against the libraries that define CDasherModule
and CDasherComponent
?While you cannot prevent orientation change from taking effect you can emulate no change as stated in other answers.
First detect device orientation or reorientation and, using JavaScript, add a class name to your wrapping element (in this example I use the body tag).
function deviceOrientation() {
var body = document.body;
switch(window.orientation) {
case 90:
body.classList = '';
body.classList.add('rotation90');
break;
case -90:
body.classList = '';
body.classList.add('rotation-90');
break;
default:
body.classList = '';
body.classList.add('portrait');
break;
}
}
window.addEventListener('orientationchange', deviceOrientation);
deviceOrientation();
Then if the device is landscape, use CSS to set the body width to the viewport height and the body height to the viewport width. And let’s set the transform origin while we’re at it.
@media screen and (orientation: landscape) {
body {
width: 100vh;
height: 100vw;
transform-origin: 0 0;
}
}
Now, reorient the body element and slide (translate) it into position.
body.rotation-90 {
transform: rotate(90deg) translateY(-100%);
}
body.rotation90 {
transform: rotate(-90deg) translateX(-100%);
}
It's worth trying faulthandler to identify the line or the library that is causing the issue as mentioned here https://stackoverflow.com/a/58825725/2160809 and in the comments by Karuhanga
faulthandler.enable()
// bad code goes here
or
$ python3 -q -X faulthandler
>>> /// bad cod goes here
Now I'm using this:
Dialoglar.Confirm = function (_title, _question, callback_OK) {
var confirmArguments = arguments;
bootbox.dialog({
title: "<b>" + _title + "</b>",
message: _question,
buttons: {
success: {
label: "OK",
className: "btn-success",
callback: function () {
if (typeof(callback_OK) == "function") { callback_OK.apply(this,Array.prototype.slice.call(confirmArguments, 3));
}
}
},
danger: {
label: "Cancel",
className: "btn-danger",
callback: function () {
$(this).hide();
}
}
}
});
};
I struggled with a similar problem for hours. It then turned out that jQuery was included twice, once by the program that I was adding a jQuery function to and once by our in-house debugger.
I'm using Android Studio Beta version 0.8.1 and I have the same problem. I now I sold my problem by changing the AVD (I'm using Genymotion) to API 19. and here is my build.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 19
buildToolsVersion "19.1.0"
defaultConfig {
applicationId "com.example.daroath.actionbar"
minSdkVersion 14
targetSdkVersion 19
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
}
Hope this help!
(Not everyone likes doing things through the git command line interface)
Once this has been set up, you only need to do steps 7-13 from then on.
Fetch > checkout master branch > reset to their master > Push changes to server
Double click on your "master" branch to check it out if it is not checked out already.
Find the commit that you want to reset to, if you called the repo "master" you will most likely want to find the commit with the "master/master" tag on it.
Right click on the commit > "Reset current branch to this commit".
In the dialog, set the "Using mode:" field to "Hard - discard all working copy changes" then press "OK" (make sure to put any changes that you don't want to lose onto a separate branch first).
Your Done!
A third great alternative is using the package data.table
, which also has the class data.frame, but operations like you are looking for are computed much faster.
library(data.table)
mydt <- structure(list(Name = c("Aira", "Aira", "Aira", "Ben", "Ben", "Ben", "Cat", "Cat", "Cat"), Month = c(1L, 2L, 3L, 1L, 2L, 3L, 1L, 2L, 3L), Rate1 = c(15.6396600443877, 2.15649279424609, 6.24692918928743, 2.37658797276116, 34.7500663272292, 3.28750138697048, 29.3265553981065, 17.9821839334431, 10.8639802575958), Rate2 = c(17.1680489538369, 5.84231656330206, 8.54330866437461, 5.88415184986176, 3.02064294862551, 17.2053351400752, 16.9552950199166, 2.56058000170089, 15.7496228048122)), .Names = c("Name", "Month", "Rate1", "Rate2"), row.names = c(NA, -9L), class = c("data.table", "data.frame"))
Now to take the mean of Rate1 and Rate2 for all 3 months, for each person (Name): First, decide which columns you want to take the mean of
colstoavg <- names(mydt)[3:4]
Now we use lapply to take the mean over the columns we want to avg (colstoavg)
mydt.mean <- mydt[,lapply(.SD,mean,na.rm=TRUE),by=Name,.SDcols=colstoavg]
mydt.mean
Name Rate1 Rate2
1: Aira 8.014361 10.517891
2: Ben 13.471385 8.703377
3: Cat 19.390907 11.755166
In Win 7, navigate to the directory where your text files are. On the command prompt use:
copy *.txt combined.txt
Where combined.txt
is the name of the newly created text file.
Here is pro example of using multi proptypes and single proptype.
import React, { Component } from 'react';
import { string, shape, array, oneOfType } from 'prop-types';
class MyComponent extends Component {
/**
* Render
*/
render() {
const { title, data } = this.props;
return (
<>
{title}
<br />
{data}
</>
);
}
}
/**
* Define component props
*/
MyComponent.propTypes = {
data: oneOfType([array, string, shape({})]),
title: string,
};
export default MyComponent;
Duration in seconds using Python 2.7 and the YouTube API v3:
try:
dur = entry['contentDetails']['duration']
try:
minutes = int(dur[2:4]) * 60
except:
minutes = 0
try:
hours = int(dur[:2]) * 60 * 60
except:
hours = 0
secs = int(dur[5:7])
print hours, minutes, secs
video.duration = hours + minutes + secs
print video.duration
except Exception as e:
print "Couldnt extract time: %s" % e
pass
public static void copyInputStreamToFile(InputStream input, File file) {
try (OutputStream output = new FileOutputStream(file)) {
input.transferTo(output);
} catch (IOException ioException) {
ioException.printStackTrace();
}
}
java.io.InputStream#transferTo is available since Java 9.
call function on load:
<video onload="doWhatYouNeedTo()" src="demo.mp4" id="video">
get video duration
var video = document.getElementById("video");
var duration = video.duration;
Use atof()
But this is deprecated, use this instead:
const char* flt = "4.0800";
float f;
sscanf(flt, "%f", &f);
http://www.cplusplus.com/reference/clibrary/cstdlib/atof/
atof()
returns 0
for both failure and on conversion of 0.0
, best to not use it.
I did install git and tried again and got the same error. But running 'npm install' in a new command prompt window worked for me. Restarting the machine is not required.
I used ini_set('display_errors','off');
and it worked great.
Neither did I get GetSchemaTable
to work, until I found this way.
Basically I do this:
Dim myView As DataView = dr.GetSchemaTable().DefaultView
myView.RowFilter = "ColumnName = 'ColumnToBeChecked'"
If myView.Count > 0 AndAlso dr.GetOrdinal("ColumnToBeChecked") <> -1 Then
obj.ColumnToBeChecked = ColumnFromDb(dr, "ColumnToBeChecked")
End If
The overall dimensions of a range are in its Width
and Height
properties.
Dim r As Range
Set r = ActiveSheet.Range("A4:H12")
Debug.Print r.Width
Debug.Print r.Height
Personally i wouldnt store the image in the database, Instead put it in a folder not accessable from outside, and use the database for keeping track of its location. keeps database size down and you can just include it by using PHP. There would be no way without PHP to access that image then
my take....
listofcols = ['col1','col2','col3']
df['combined_cols'] = ''
for column in listofcols:
df['combined_cols'] = df['combined_cols'] + ' ' + df[column]
'''
jQuery("[name='test']")
Although you should avoid it and if possible select by ID (e.g. #myId
) as this has better performance because it invokes the native getElementById
.
You Can not Use the Intent's Context
for Creating Intent. So You need to use your Fragment's
Parent Activity
Context
Intent intent = new Intent(getActivity(),MyClass.class);
For Windows
A Way to get all the pids of programs on your computer without downloading any modules:
import os
pids = []
a = os.popen("tasklist").readlines()
for x in a:
try:
pids.append(int(x[29:34]))
except:
pass
for each in pids:
print(each)
If you just wanted one program or all programs with the same name and you wanted to kill the process or something:
import os, sys, win32api
tasklistrl = os.popen("tasklist").readlines()
tasklistr = os.popen("tasklist").read()
print(tasklistr)
def kill(process):
process_exists_forsure = False
gotpid = False
for examine in tasklistrl:
if process == examine[0:len(process)]:
process_exists_forsure = True
if process_exists_forsure:
print("That process exists.")
else:
print("That process does not exist.")
raw_input()
sys.exit()
for getpid in tasklistrl:
if process == getpid[0:len(process)]:
pid = int(getpid[29:34])
gotpid = True
try:
handle = win32api.OpenProcess(1, False, pid)
win32api.TerminateProcess(handle, 0)
win32api.CloseHandle(handle)
print("Successfully killed process %s on pid %d." % (getpid[0:len(prompt)], pid))
except win32api.error as err:
print(err)
raw_input()
sys.exit()
if not gotpid:
print("Could not get process pid.")
raw_input()
sys.exit()
raw_input()
sys.exit()
prompt = raw_input("Which process would you like to kill? ")
kill(prompt)
That was just a paste of my process kill program I could make it a whole lot better but it is okay.
zero(myarray);
is all you need in C++.
Just add this to a header:
template<typename T, size_t SIZE> inline void zero(T(&arr)[SIZE]){
memset(arr, 0, SIZE*sizeof(T));
}
To add on to Andrea's solution, if you are passing an array of JSONs for instance
[
{"name":"value"},
{"name":"value2"}
]
Then you will need to set up the Spring Boot Controller like so:
@RequestMapping(
value = "/process",
method = RequestMethod.POST)
public void process(@RequestBody Map<String, Object>[] payload)
throws Exception {
System.out.println(payload);
}
Change this.foo()
to module.exports.foo()
word = ' '
while True:
if ' ' in word:
word = raw_input("Please enter a single word: ")
else:
print "Thanks"
break
This is more idiomatic python - comparison against True or False is not necessary - just use the value returned by the expression ' ' in word
.
Also, you don't need to use pastebin for such a small snippet of code - just copy the code into your post and use the little 1s and 0s button to make your code look like code.
Ok, after all the possibilities I have chosen to work with "Java Monitoring and Management"
Overview is here
That allows you to control one application from another one in relatively easy way. You can call the controlling application from a script to stop controlled application gracefully before killing it.
Here is the simplified code:
Controlled application:
run it with the folowing VM parameters:
-Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.port=9999
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false
//ThreadMonitorMBean.java
public interface ThreadMonitorMBean
{
String getName();
void start();
void stop();
boolean isRunning();
}
// ThreadMonitor.java
public class ThreadMonitor implements ThreadMonitorMBean
{
private Thread m_thrd = null;
public ThreadMonitor(Thread thrd)
{
m_thrd = thrd;
}
@Override
public String getName()
{
return "JMX Controlled App";
}
@Override
public void start()
{
// TODO: start application here
System.out.println("remote start called");
}
@Override
public void stop()
{
// TODO: stop application here
System.out.println("remote stop called");
m_thrd.interrupt();
}
public boolean isRunning()
{
return Thread.currentThread().isAlive();
}
public static void main(String[] args)
{
try
{
System.out.println("JMX started");
ThreadMonitorMBean monitor = new ThreadMonitor(Thread.currentThread());
MBeanServer server = ManagementFactory.getPlatformMBeanServer();
ObjectName name = new ObjectName("com.example:type=ThreadMonitor");
server.registerMBean(monitor, name);
while(!Thread.interrupted())
{
// loop until interrupted
System.out.println(".");
try
{
Thread.sleep(1000);
}
catch(InterruptedException ex)
{
Thread.currentThread().interrupt();
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
finally
{
// TODO: some final clean up could be here also
System.out.println("JMX stopped");
}
}
}
Controlling application:
run it with the stop or start as the command line argument
public class ThreadMonitorConsole
{
public static void main(String[] args)
{
try
{
// connecting to JMX
System.out.println("Connect to JMX service.");
JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://:9999/jmxrmi");
JMXConnector jmxc = JMXConnectorFactory.connect(url, null);
MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
// Construct proxy for the the MBean object
ObjectName mbeanName = new ObjectName("com.example:type=ThreadMonitor");
ThreadMonitorMBean mbeanProxy = JMX.newMBeanProxy(mbsc, mbeanName, ThreadMonitorMBean.class, true);
System.out.println("Connected to: "+mbeanProxy.getName()+", the app is "+(mbeanProxy.isRunning() ? "" : "not ")+"running");
// parse command line arguments
if(args[0].equalsIgnoreCase("start"))
{
System.out.println("Invoke \"start\" method");
mbeanProxy.start();
}
else if(args[0].equalsIgnoreCase("stop"))
{
System.out.println("Invoke \"stop\" method");
mbeanProxy.stop();
}
// clean up and exit
jmxc.close();
System.out.println("Done.");
}
catch(Exception e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
That's it. :-)
Strange behaviour while debugging my app: require "active_support/notifications" (rdb:1) p ENV['RAILS_ENV'] "test" (rdb:1) p Rails.env "development"
I would say that you should stick to one or another (and preferably Rails.env)
In PowerShell v5+, there is an Expand-Archive command (as well as Compress-Archive) built in:
Expand-Archive c:\a.zip -DestinationPath c:\a
String s1="arshad";
char[] s2=s1.toCharArray();
int s3= s2.length;
System.out.println(s3);
int i=0;
// for(int j=0;j<s3;j++)
// System.out.println(s2[j]);
for(i=0;i<((s3)/2);i++) {
char z,f=10;
z=(char) (s2[i] * f);
s2[i]=s2[(s3-1)-i];
s2[(s3-1)-i]=z;
String b=new String(s2);
print(b); }
As a note ,
for those who need to have null value for things other than "true" or "false" strings , you can use the function below
public Boolean tryParseBoolean(String inputBoolean)
{
if(!inputBoolean.equals("true")&&!inputBoolean.equals("false")) return null;
return Boolean.valueOf(inputBoolean);
}
It seems you may be more comfortable with developing in PHP you let this hold you back from utilizing the full potential with web applications.
It is indeed possible to have PHP render partials and whole views, but I would not recommend it.
To fully utilize the possibilities of HTML and javascript to make a web application, that is, a web page that acts more like an application and relies heavily on client side rendering, you should consider letting the client maintain all responsibility of managing state and presentation. This will be easier to maintain, and will be more user friendly.
I would recommend you to get more comfortable thinking in a more API centric approach. Rather than having PHP output a pre-rendered view, and use angular for mere DOM manipulation, you should consider having the PHP backend output the data that should be acted upon RESTFully, and have Angular present it.
Using PHP to render the view:
/user/account
if($loggedIn)
{
echo "<p>Logged in as ".$user."</p>";
}
else
{
echo "Please log in.";
}
How the same problem can be solved with an API centric approach by outputting JSON like this:
api/auth/
{
authorized:true,
user: {
username: 'Joe',
securityToken: 'secret'
}
}
and in Angular you could do a get, and handle the response client side.
$http.post("http://example.com/api/auth", {})
.success(function(data) {
$scope.isLoggedIn = data.authorized;
});
To blend both client side and server side the way you proposed may be fit for smaller projects where maintainance is not important and you are the single author, but I lean more towards the API centric way as this will be more correct separation of conserns and will be easier to maintain.
This will require Node.js 7 or later with a support for Promises and Async/Await.
Create a wrapper function that leverage promises to control the behavior of the child_process.exec
command.
Using promises and an asynchronous function, you can mimic the behavior of a shell returning the output, without falling into a callback hell and with a pretty neat API. Using the await
keyword, you can create a script that reads easily, while still be able to get the work of child_process.exec
done.
const childProcess = require("child_process");
/**
* @param {string} command A shell command to execute
* @return {Promise<string>} A promise that resolve to the output of the shell command, or an error
* @example const output = await execute("ls -alh");
*/
function execute(command) {
/**
* @param {Function} resolve A function that resolves the promise
* @param {Function} reject A function that fails the promise
* @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise
*/
return new Promise(function(resolve, reject) {
/**
* @param {Error} error An error triggered during the execution of the childProcess.exec command
* @param {string|Buffer} standardOutput The result of the shell command execution
* @param {string|Buffer} standardError The error resulting of the shell command execution
* @see https://nodejs.org/api/child_process.html#child_process_child_process_exec_command_options_callback
*/
childProcess.exec(command, function(error, standardOutput, standardError) {
if (error) {
reject();
return;
}
if (standardError) {
reject(standardError);
return;
}
resolve(standardOutput);
});
});
}
async function main() {
try {
const passwdContent = await execute("cat /etc/passwd");
console.log(passwdContent);
} catch (error) {
console.error(error.toString());
}
try {
const shadowContent = await execute("cat /etc/shadow");
console.log(shadowContent);
} catch (error) {
console.error(error.toString());
}
}
main();
root:x:0:0::/root:/bin/bash
[output trimmed, bottom line it succeeded]
Error: Command failed: cat /etc/shadow
cat: /etc/shadow: Permission denied
What you are doing is making a JSON string in your example. Either don't use the JSON.stringify()
or if you ever do have JSON data coming back and you don't want quotations, Simply use JSON.parse()
to remove quotations around JSON responses! Don't use regex, there's no need to.
I think requests.head instead of requests.get will be more safe to call when handling url redirect,check the github issue here:
r = requests.head(url, allow_redirects=True)
print(r.url)
Just wrap your WebElement into Select Object as shown below
Select dropdown = new Select(driver.findElement(By.id("identifier")));
Once this is done you can select the required value in 3 ways. Consider an HTML file like this
<html>
<body>
<select id = "designation">
<option value = "MD">MD</option>
<option value = "prog"> Programmer </option>
<option value = "CEO"> CEO </option>
</option>
</select>
<body>
</html>
Now to identify dropdown do
Select dropdown = new Select(driver.findElement(By.id("designation")));
To select its option say 'Programmer' you can do
dropdown.selectByVisibleText("Programmer ");
or
dropdown.selectByIndex(1);
or
dropdown.selectByValue("prog");
An instance variable is a variable that is a member of an instance of a class (i.e., associated with something created with a new
), whereas a class variable is a member of the class itself.
Every instance of a class will have its own copy of an instance variable, whereas there is only one of each static (or class) variable, associated with the class itself.
What’s the difference between a class variable and an instance variable?
This test class illustrates the difference:
public class Test {
public static String classVariable = "I am associated with the class";
public String instanceVariable = "I am associated with the instance";
public void setText(String string){
this.instanceVariable = string;
}
public static void setClassText(String string){
classVariable = string;
}
public static void main(String[] args) {
Test test1 = new Test();
Test test2 = new Test();
// Change test1's instance variable
test1.setText("Changed");
System.out.println(test1.instanceVariable); // Prints "Changed"
// test2 is unaffected
System.out.println(test2.instanceVariable); // Prints "I am associated with the instance"
// Change class variable (associated with the class itself)
Test.setClassText("Changed class text");
System.out.println(Test.classVariable); // Prints "Changed class text"
// Can access static fields through an instance, but there still is only one
// (not best practice to access static variables through instance)
System.out.println(test1.classVariable); // Prints "Changed class text"
System.out.println(test2.classVariable); // Prints "Changed class text"
}
}
The below command is enough to get the path of the file from a dialog box -
my_FileName = Application.GetOpenFilename("Excel Files (*.tsv), *.txt")