Echo counter always on the same screen location? - echo

I am looking for a way to have a counter (which is giving user feedback during a lengthy process). That is easy enough, but the thing is that the counter should display its digits always in the same screen location.
The process consists of about 50,000 repeated steps. Is such a counter possible in PHP? Or in a combination with Javascript? I would so much love to get a working example.
This is the rough logic:
$Counter = 0;
While ($counter < 50000) {
$x = DoSomething();
echo $counter; // **always in the same location!**
Counter++;
} ;
Hoping for the best!

Obviously, all (PHP) problems have their solution, hidden somewhere here on StackOverflow. My thingy about having Echo use always the same location on screen, has been answered here:
Show progress for long running PHP script . About halfway down, there is a beautiful neat solution, without Javascript of Ajax, only in PHP. For me it does the trick!
Thanks, Stack.

Related

Qt Save form take 3-4 second to open

i'm using this on push button click in Qt:
QString fileName = QFileDialog::getSaveFileName(this, tr("Save file"),
QString(),
tr("(*.csv));
it take 3-4 second to open the save Form. why? how i can improve speed?
Try to connect this slot to a QPushButton:
void MainWindow::openFD(){
QTime myopentime=QTime::currentTime();
for (int i=0;i<1000000;i++) ;//comment out this line for the real test
QString fileName = QFileDialog::getSaveFileName(this,QString(),QString(myopentime.toString("m.s.zzz")+" "+QTime::currentTime().toString("m.s.zzz"))
,tr("*.csv") );
}
Then try to run it with and without the count part.
You will see, that the count part adds some ms... without it there is not even ms (mili-second) of difference in the time shown in filename place.
So, you have to search somewhere else in your code or give us a better example.
PS:
1) You will need :
#include <QTime>
2) The line that counting is there to show you that my method works (since you will see some difference when uncomment)
Result and Answer: The problem is not on QFileDialog if this test will not give you differences but somewhere else in your code or possibly in the Window manager of your OS.

mt4 indicator count day

I need to use "Count Day" code for indicator.
It does work fine, but this indicator keeps previous day object till I restart MT4.
What is wrong below code?
if(day >= drowDays) {
break;}
Also you can see chart screenshot link.
You're not providing sufficient information to your problem :'(
With the limited info, what I can say is that you need to delete the graphical objects created for previous day.
Assuming your indicator will plot the latest line, then you MIGHT (again, this is a guess as there is not enough information of your code) be able to achieve it with the ObjectsDeleteAll() function at the start of your OnCalculate(). Obviously, this is not efficient, but is something you can think about.

document.getElementsByClassName() works, but inconsistent

I was trying to create a greasemonkey script which removes Facebook and twitter from a website.
In my case 9gag.
I looked and I need to hide the classes:
1. 'social-action' (works fine)
2. 'badge-sticky-social sticky-social' (every second post)
3. 'post-afterbar-a in-list-view' (every second post)
my Code so far (differing classes)
(function() {
var ads=document.getElementsByClassName('badge-sticky-social sticky-social');
for (var i=0; i<ads.length; i++) {
ads[i].parentNode.removeChild(ads[i]);
}
})()
I don't know why it only works on half the post and not all of them
Because you're removing the very elements that you're iterating over, the iteration ends up in the wrong place. That is, you look at the first one and then remove it, and then try to look at the second one. But the one that had been the second one is now the first one, so that one gets skipped.
The solution, as CBroe says, is to run the loop from high to low, so that you're not trying to count things that already have been removed:
for (var i=ads.length-1; i>=0; i--)

How to ignore some subroutine calls in NYTProf reporting

I'm trying to profile a Perl script, but CORE::sleep gobble all the space (and time) of my report.
How can i tell NYTProf to ignore sleep calls ?
Assuming we have the following script :
sub BrandNewSubroutine {
sleep 10;
print "Odelay\n";
}
BrandNewSubroutine();
I want to get rid of the following line of the report :
Exclusive Time;Inclusive Time;Subroutine
10.0s;10.0s;main::::CORE:sleepmain::CORE:sleep
(opcode)
Edit: Using DB::disable_profile() and DB::enable_profile() won't do the trick, as it add sleep time to BrandNewSubroutine Inclusive time.
Thanks in advance.
I'd suggest either wrapping the calls to sleep (possibly by use of method mentioned in perlsub) with DB::disable_profile() and DB::enable_profile() calls (RUN-TIME CONTROL OF PROFILING in NYTProf documentation), or post processing the report to remove the offending calls.
CORE::accept is already ignored in the way you'd like CORE::sleep to be, so the mechanism is already in place. See this code in NYTProf.xs:
/* XXX make configurable eg for wait(), and maybe even subs like FCGI::Accept
* so perhaps use $hide_sub_calls->{$package}{$subname} to make it general.
* Then the logic would have to move out of this block.
*/
if (OP_ACCEPT == op_type)
subr_entry->hide_subr_call_time = 1;
So with a little hacking (OP_SLEEP==op_type || OP_ACCEPT == op_type) you'd be able to ignore CORE::sleep in the same way.
I'd accept a patch to enable that as an option.

What is better approach to wait for elements on a page Waitforcomplete() or system.threading.thread.sleep()

I am Using WaitforComplete() in watiN but it doesnt seems to work well. As it executes the next statement even if you have given longer time to wait. I am using thread.sleep() to stop my application until it gets the desired page or element. But the thing is pages are so much dynamic that sometimes it takes much longer time as specified.
Any better solution. Any thing that will catch the page return dynamically and dont go to execute next statments in application.
Sample of Code
'Show Details page
Assert.AreEqual("Confirmation", _internetExplorer.Title)
If (_internetExplorer.Button(Find.ById(New Regex("btnFinish"))).Exists) Then
_internetExplorer.Button(Find.ById(New Regex("btnFinish"))).Click()
Else
Assert.Fail("Could not Find Finish Booking Button on Confirmation Page")
End If
System.Threading.Thread.Sleep(100000)
'Show Booking Summary page
Assert.AreEqual("Display Booking", _internetExplorer.Title)
I want something that detect the return of page dynamically. instead of giving some constant value.
WaitForComplete only works well if there is a postback after some action. Otherwise you have to find something else to wait for. Following an example on how to wait for the specified title:
_internetExplorer.Element("title", "Confirmation").WaitUntilExists();
I would always prefer to use one of the WaitXXX methods instead of Thread.Sleep cause the WaitXXX methods do only wait until the contraint is met. Where as Sleep waits for the time you specified. If its to long, time is waisted. If its to short, problems arise.
HTH,
Jeroen
The WaitForComplete method esentially moves on once the browser has set it's readystate to comllete and the busy state to false.
What I typically do is to try and access what you need to, then perform a thread.sleep for say half a second, then try again. I also have a global timeout that quits after say 10 seconds.
int timeout = 20;
bool controlFound = false;
for (int i = 0; i < timeout; i++)
{
if (_internetExplorer.Button(Find.ById(New Regex("btnFinish"))).Exists)
{
_internetExplorer.Button(Find.ById(New Regex("btnFinish"))).Click();
controlFound = true;
break;
}
else
{
System.Threading.Thread.Sleep(500);
}
}
if (!controlFound)
{
Assert.Fail("Control not found");
}
If it is executing the next statement, it should be finding the corresponding element. I suggest posting a sample of the code you are trying.