One of the Roslyn engineers who specializes in understanding optimization of stack usage took a look at this and reports to me that there seems to be a problem in the interaction between the way the C# compiler generates local variable stores and the way the JIT compiler does register scheduling in the corresponding x86 code. The result is suboptimal code generation on the loads and stores of the locals.
For some reason unclear to all of us, the problematic code generation path is avoided when the JITter knows that the block is in a try-protected region.
This is pretty weird. We'll follow up with the JITter team and see whether we can get a bug entered so that they can fix this.
Also, we are working on improvements for Roslyn to the C# and VB compilers' algorithms for determining when locals can be made "ephemeral" -- that is, just pushed and popped on the stack, rather than allocated a specific location on the stack for the duration of the activation. We believe that the JITter will be able to do a better job of register allocation and whatnot if we give it better hints about when locals can be made "dead" earlier.
Thanks for bringing this to our attention, and apologies for the odd behaviour.
Download last version (not 2.5.1 or other old ones) from jmeter.apache.org
Unzip file
Ensure you install a version of JAVA which is compatible, Java 6 or 7 for JMeter 2.11
In bin folder click on jmeter.sh not on jar or execute sh ./apache-jmeter-x.x.x/bin/jmeter
in the terminal.
x.x.x is the version you use.
Finally, when started you may want to select System Look and feel for Mac OSX better integration. Menu > Options > Look and Feel > System
Just a word on drawing (incorrect) conclusions from any of the performance measurement commands referred to in the answers. There are a number of pitfalls that should taken in consideration aside from looking to the bare invocation time of a (custom) function or command.
'Sjoemelsoftware' voted Dutch word of the year 2015
Sjoemelen means cheating, and the word sjoemelsoftware came into being due to the Volkswagen emissions scandal. The official definition is "software used to influence test results".
Personally, I think that "Sjoemelsoftware" is not always deliberately created to cheat test results but might originate from accommodating practical situation that are similar to test cases as shown below.
As an example, using the listed performance measurement commands, Language Integrated Query (LINQ)(1), is often qualified as the fasted way to get something done and it often is, but certainly not always! Anybody who measures a speed increase of a factor 40 or more in comparison with native PowerShell commands, is probably incorrectly measuring or drawing an incorrect conclusion.
The point is that some .Net classes (like LINQ) using a lazy evaluation (also referred to as deferred execution(2)). Meaning that when assign an expression to a variable, it almost immediately appears to be done but in fact it didn't process anything yet!
Let presume that you dot-source your . .\Dosomething.ps1
command which has either a PowerShell or a more sophisticated Linq expression (for the ease of explanation, I have directly embedded the expressions directly into the Measure-Command
):
$Data = @(1..100000).ForEach{[PSCustomObject]@{Index=$_;Property=(Get-Random)}}
(Measure-Command {
$PowerShell = $Data.Where{$_.Index -eq 12345}
}).totalmilliseconds
864.5237
(Measure-Command {
$Linq = [Linq.Enumerable]::Where($Data, [Func[object,bool]] { param($Item); Return $Item.Index -eq 12345})
}).totalmilliseconds
24.5949
The result appears obvious, the later Linq command is a about 40 times faster than the first PowerShell command. Unfortunately, it is not that simple...
Let's display the results:
PS C:\> $PowerShell
Index Property
----- --------
12345 104123841
PS C:\> $Linq
Index Property
----- --------
12345 104123841
As expected, the results are the same but if you have paid close attention, you will have noticed that it took a lot longer to display the $Linq
results then the $PowerShell
results.
Let's specifically measure that by just retrieving a property of the resulted object:
PS C:\> (Measure-Command {$PowerShell.Property}).totalmilliseconds
14.8798
PS C:\> (Measure-Command {$Linq.Property}).totalmilliseconds
1360.9435
It took about a factor 90 longer to retrieve a property of the $Linq
object then the $PowerShell
object and that was just a single object!
Also notice an other pitfall that if you do it again, certain steps might appear a lot faster then before, this is because some of the expressions have been cached.
Bottom line, if you want to compare the performance between two functions, you will need to implement them in your used case, start with a fresh PowerShell session and base your conclusion on the actual performance of the complete solution.
(1) For more background and examples on PowerShell and LINQ, I recommend tihis site: High Performance PowerShell with LINQ
(2) I think there is a minor difference between the two concepts as with lazy evaluation the result is calculated when needed as apposed to deferred execution were the result is calculated when the system is idle
It's been a while since I read it (so, I'm not sure how much of it is still relevant), but my recollection is that Joe Celko's SQL for Smarties book provides a lot of info on writing elegant, effective, and efficient queries.
This works for me:
<body>
<form>
[...]
<div style="position:absolute; top:60px; left:10px; width:500px; height:500px;">
<canvas id="cv_values"></canvas>
<script type="text/javascript">
var indicatedValueData = {
labels: ["1", "2", "3"],
datasets: [
{
[...]
};
var cv_values = document.getElementById("cv_values").getContext("2d");
var myChart = new Chart(cv_values, { type: "line", data: indicatedValueData });
</script>
</div>
</form>
</body>
The essential fact is that we have to set the size of the canvas in the div-tag.
I might suggest 2 things.
1) If your query takes a lot of time because it´s using several tables that might involve locks, a quite fast solution is to run your queries with the "NoLock" hint.
Simply add Select * from YourTable WITH (NOLOCK)
in all your table references an that will prevent your query to block for concurrent transactions.
2) if you want to be sure that all of your queries runs in (let´s say) less than 5 seconds, then you could add what @talha proposed, that worked sweet for me
Just add at the top of your execution
SET LOCK_TIMEOUT 5000; --5 seconds.
And that will cause that your query takes less than 5 or fail. Then you should catch the exception and rollback if needed.
Hope it helps.
Redirect non-www to www (both: http + https)
RewriteCond %{HTTPS} off
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]
RewriteCond %{HTTPS} on
RewriteCond %{HTTP_HOST} !^www\.(.*)$ [NC]
RewriteRule ^(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L]
$array = array(
'something' => array(1,2,3),
'somethingelse' => array(1,2,3,4)
);
$last_value = end($array);
$last_key = key($array); // 'somethingelse'
This works because PHP moves it's array pointer internally for $array
You do like this:
List<int>[] a = new List<int>[100];
Now you have an array of type List<int>
containing 100 null references. You have to create lists and put in the array, for example:
a[0] = new List<int>();
The exec
built-in command mirrors functions in the kernel, there are a family of them based on execve
, which is usually called from C.
exec
replaces the current program in the current process, without fork
ing a new process. It is not something you would use in every script you write, but it comes in handy on occasion. Here are some scenarios I have used it;
We want the user to run a specific application program without access to the shell. We could change the sign-in program in /etc/passwd, but maybe we want environment setting to be used from start-up files. So, in (say) .profile
, the last statement says something like:
exec appln-program
so now there is no shell to go back to. Even if appln-program
crashes, the end-user cannot get to a shell, because it is not there - the exec
replaced it.
We want to use a different shell to the one in /etc/passwd. Stupid as it may seem, some sites do not allow users to alter their sign-in shell. One site I know had everyone start with csh
, and everyone just put into their .login
(csh start-up file) a call to ksh
. While that worked, it left a stray csh
process running, and the logout was two stage which could get confusing. So we changed it to exec ksh
which just replaced the c-shell program with the korn shell, and made everything simpler (there are other issues with this, such as the fact that the ksh
is not a login-shell).
Just to save processes. If we call prog1 -> prog2 -> prog3 -> prog4
etc. and never go back, then make each call an exec. It saves resources (not much, admittedly, unless repeated) and makes shutdown simplier.
You have obviously seen exec
used somewhere, perhaps if you showed the code that's bugging you we could justify its use.
Edit: I realised that my answer above is incomplete. There are two uses of exec
in shells like ksh
and bash
- used for opening file descriptors. Here are some examples:
exec 3< thisfile # open "thisfile" for reading on file descriptor 3
exec 4> thatfile # open "thatfile" for writing on file descriptor 4
exec 8<> tother # open "tother" for reading and writing on fd 8
exec 6>> other # open "other" for appending on file descriptor 6
exec 5<&0 # copy read file descriptor 0 onto file descriptor 5
exec 7>&4 # copy write file descriptor 4 onto 7
exec 3<&- # close the read file descriptor 3
exec 6>&- # close the write file descriptor 6
Note that spacing is very important here. If you place a space between the fd number and the redirection symbol then exec
reverts to the original meaning:
exec 3 < thisfile # oops, overwrite the current program with command "3"
There are several ways you can use these, on ksh use read -u
or print -u
, on bash
, for example:
read <&3
echo stuff >&4
You can also use the logname
command from the BSD General Commands Manual under Linux or MacOS to see the username of the user currently logged in, even if the user is performing a sudo
operation. This is useful, for instance, when modifying a user's crontab while installing a system-wide package with sudo: crontab -u $(logname)
Per man logname
:
LOGNAME(1)
NAME
logname -- display user's login name
Maven setup:
a. install maven from https://maven.apache.org/download.cgi
b. unzip maven and keep in C drive.
Use this style
<div class="form-control"
style="height:100px;
width:55%;
overflow:hidden;
cursor:pointer">
</div>
I had this problem too. I had used stateSave
option and that made this problem.
Remove this option and problem is solved.
In my case, it was a misconfigured IntelliJ instance.
Project Structure -> SDKs -> Remove and add the Java SDK again
ALTER TABLE `ALLITEMS`
CHANGE COLUMN `itemid` `itemid` INT(10) UNSIGNED NOT NULL AUTO_INCREMENT;
Two steps worked for me:
gem install bundler
bundle install --redownload # Forces a redownload of all gems on the gemfile, assigning them to the new bundler
There are two simple & elegant ways to do it.
Pure CSS:
After first form submission, despite the form validity, Angular will add a ng-submitted
class to all form elements inside the form just submitted.
We can use .ng-submitted
to controller our element via CSS.
if you want to display an error text only when user have submitted e.g.
.error { display: none }
.ng-submitted .error {
display: block;
}
Using a value from Scope:
After first form submission, despite the form validity, Angular will set [your form name].$submitted
to true. Thus, we can use that value to control elements.
<div ng-show="yourFormName.$submitted">error message</div>
<form name="yourFormName"></form>
Motion is an alternative to Zoneminder. It has a steeper setup curve as everything is configured via config files.However, the config files are nicely commented and it's easier than it sounds. It's very reliable once running as well.
To add a Foscam camera (mentioned above) use the following syntax to stream the video from the camera.
netcam_url http://<IPADDRESS>/videostream.cgi?user=admin?pwd=
Where the user is admin with a blank password (the default for Foscam cameras).
For really high uptime/reliablity consider using a monitoring tool such as Monit. This works well with Motion.
You can only Extend a single class. And implement Interfaces from many sources.
Extending multiple classes is not available. The only solution I can think of is not inheriting either class but instead having an internal variable of each class and doing more of a proxy by redirecting the requests to your object to the object that you want them to go to.
public class CustomActivity extends Activity {
private AnotherClass mClass;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mClass = new AnotherClass(this);
}
//Implement each method you want to use.
public String getInfoFromOtherClass()
{
return mClass.getInfoFromOtherClass();
}
}
this is the best solution I have come up with. You can get the functionality from both classes and Still only actually be of one class type.
The drawback is that you cannot fit into the Mold of the Internal class using a cast.
Either !=
or ne
will work, but you need to get the accessor syntax and nested quotes sorted out.
<c:if test="${content.contentType.name ne 'MCE'}">
<%-- snip --%>
</c:if>
Try this:
public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
DataPickerListener listener;
public DatePickerFragment(DataPickerListener l) {
listener = l;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the date picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
return new DatePickerDialog(getActivity(),
AlertDialog.THEME_HOLO_LIGHT, this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
month = month + 1;
String stringOfDate = day + "-" + month + "-" + year;
listener.setDate(stringOfDate);
Util.Log(stringOfDate);
}
@Override
public void onCancel(DialogInterface dialog) {
// TODO Auto-generated method stub
super.onCancel(dialog);
listener.cancel();
}
public static interface DataPickerListener {
void setDate(String date);
void cancel();
}
}
// use this function to open datePicker popup
DialogFragment newFragment;
public void pickDate() {
if (newFragment == null)
newFragment = new DatePickerFragment(new PickDateListener());
newFragment.show(getFragmentManager(), "Date Picker");
}
class PickDateListener implements DataPickerListener {
@Override
public void setDate(String date) {
createSpiner(date);
onetouch = false;
}
@Override
public void cancel() {
onetouch = false;
}
}
In case you have a BottomBar:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
if (mBottomBar.getCurrentTabId() == R.id.tab_more) {
getMenuInflater().inflate(R.menu.more_menu, menu);
}
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.preferences:
startActivity(new Intent(this, PreferenceActivity.class));
break;
}
return super.onOptionsItemSelected(item);
}
Then you just need to call:
@Override
public void onBottomBarClick(int tabId) {
supportInvalidateOptionsMenu();
}
You can use online converter, developed by me at N'counter.
This is the easiest way to open SPSS file in Excel.
1) You just have to upload your file to SPSS coN'verter at https://secure.ncounter.de/SpssConverter
2) Select some options
3) And your converted Excel file will be downloaded
No information about your file contents is retained on our server. The file travels to our server, is converted in-memory, and is immediately discarded: We don't peer into your data at any time!
Using ToString("HH:mm")
certainly gives you what you want as a string.
If you want the current hour/minute as numbers, string manipulation isn't necessary; you can use the TimeOfDay
property:
TimeSpan timeOfDay = fechaHora.TimeOfDay;
int hour = timeOfDay.Hours;
int minute = timeOfDay.Minutes;
For upgrade code retrieval: How can I find the Upgrade Code for an installed MSI file?
The information below has grown considerably over time and may have become a little too elaborate. How to get product codes quickly? (four approaches):
Use the Powershell "one-liner"
Scroll down for screenshot and step-by-step. Disclaimer also below - minor or moderate risks depending on who you ask. Works OK for me. Any self-repair triggered by this option should generally be possible to cancel. The package integrity checks triggered does add some event log "noise" though. Note! IdentifyingNumber
is the ProductCode
(WMI peculiarity).
get-wmiobject Win32_Product | Sort-Object -Property Name |Format-Table IdentifyingNumber, Name, LocalPackage -AutoSize
Quick start of Powershell: hold Windows key, tap R, type in "powershell" and press Enter
Use VBScript
(script on github.com)Described below under "Alternative Tools" (section 3). This option may be safer than Powershell for reasons explained in detail below. In essence it is (much) faster and not capable of triggering MSI self-repair since it does not go through WMI (it accesses the MSI COM API directly - at blistering speed). However, it is more involved than the Powershell option (several lines of code).
Registry Lookup
Some swear by looking things up in the registry. Not my recommended approach - I like going through proper APIs (or in other words: OS function calls). There are always weird exceptions accounted for only by the internals of the API-implementation:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall
HKLM\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall
HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall
Original MSI File / WiX Source
You can find the Product Code
in the Property table
of any MSI file (and any other property as well). However, the GUID could conceivably (rarely) be overridden by a transform applied at install time and hence not match the GUID the product is registered under (approach 1 and 2 above will report the real product code - that is registered with Windows - in such rare scenarios).
You need a tool to view MSI files. See towards the bottom of the following answer for a list of free tools you can download (or see quick option below): How can I compare the content of two (or more) MSI files?
UPDATE: For convenience and need for speed :-), download SuperOrca without delay and fuss from this direct-download hotlink - the tool is good enough to get the job done - install, open MSI and go straight to the Property table and find the ProductCode
row (please always virus check a direct-download hotlink - obviously - you can use virustotal.com to do so - online scan utilizing dozens of anti-virus and malware suites to scan what you upload).
Orca is Microsoft's own tool, it is installed with Visual Studio and the Windows SDK. Try searching for
Orca-x86_en-us.msi
- underProgram Files (x86)
and install the MSI if found.
- Current path:
C:\Program Files (x86)\Windows Kits\10\bin\10.0.17763.0\x86
- Change version numbers as appropriate
And below you will find the original answer which "organically grew" into a lot of detail.
Maybe see "Uninstall MSI Packages" section below if this is the task you need to perform.
UPDATE: If you also need the upgrade code, check this answer: How can I find the Upgrade Code for an installed MSI file? (retrieves associated product codes, upgrade codes & product names in a table output - similar to the one below).
- Can't use PowerShell? See "Alternative Tools" section below.
- Looking to uninstall? See "Uninstall MSI packages" section below.
Fire up Powershell (hold down the Windows key, tap R, release the Windows key, type in "powershell" and press OK) and run the command below to get a list of installed MSI package product codes along with the local cache package path and the product name (maximize the PowerShell window to avoid truncated names).
Before running this command line, please read the disclaimer below (nothing dangerous, just some potential nuisances). Section 3 under "Alternative Tools" shows an alternative non-WMI way to get the same information using VBScript. If you are trying to uninstall a package there is a section below with some sample msiexec.exe command lines:
get-wmiobject Win32_Product | Format-Table IdentifyingNumber, Name, LocalPackage -AutoSize
The output should be similar to this:
Note! For some strange reason the "ProductCode" is referred to as "IdentifyingNumber" in WMI. So in other words - in the picture above the IdentifyingNumber is the ProductCode.
If you need to run this query remotely against lots of remote computer, see "Retrieve Product Codes From A Remote Computer" section below.
DISCLAIMER (important, please read before running the command!): Due to strange Microsoft design, any WMI call to
Win32_Product
(like the PowerShell command below) will trigger a validation of the package estate. Besides being quite slow, this can in rare cases trigger an MSI self-repair. This can be a small package or something huge - like Visual Studio. In most cases this does not happen - but there is a risk. Don't run this command right before an important meeting - it is not ever dangerous (it is read-only), but it might lead to a long repair in very rare cases (I think you can cancel the self-repair as well - unless actively prevented by the package in question, but it will restart if you call Win32_Product again and this will persist until you let the self-repair finish - sometimes it might continue even if you do let it finish: How can I determine what causes repeated Windows Installer self-repair?).And just for the record: some people report their event logs filling up with MsiInstaller EventID 1035 entries (see code chief's answer) - apparently caused by WMI queries to the Win32_Product class (personally I have never seen this). This is not directly related to the Powershell command suggested above, it is in context of general use of the WIM class Win32_Product.
You can also get the output in list form (instead of table):
get-wmiobject -class Win32_Product
In this case the output is similar to this:
In theory you should just be able to specify a remote computer name as part of the command itself. Here is the same command as above set up to run on the machine "RemoteMachine" (-ComputerName RemoteMachine
section added):
get-wmiobject Win32_Product -ComputerName RemoteMachine | Format-Table IdentifyingNumber, Name, LocalPackage -AutoSize
This might work if you are running with domain admin rights on a proper domain. In a workgroup environment (small office / home network), you probably have to add user credentials directly to the WMI calls to make it work.
Additionally, remote connections in WMI are affected by (at least) the Windows Firewall, DCOM settings, and User Account Control (UAC) (plus any additional non-Microsoft factors - for instance real firewalls, third party software firewalls, security software of various kinds, etc...). Whether it will work or not depends on your exact setup.
UPDATE: An extensive section on remote WMI running can be found in this answer: How can I find the Upgrade Code for an installed MSI file?. It appears a firewall rule and suppression of the UAC prompt via a registry tweak can make things work in a workgroup network environment. Not recommended changes security-wise, but it worked for me.
PowerShell requires the .NET framework to be installed (currently in version 3.5.1 it seems? October, 2017). The actual PowerShell application itself can also be missing from the machine even if .NET is installed. Finally I believe PowerShell can be disabled or locked by various system policies and privileges.
If this is the case, you can try a few other ways to retrieve product codes. My preferred alternative is VBScript - it is fast and flexible (but can also be locked on certain machines, and scripting is always a little more involved than using tools).
wbemtest.exe
.wbemtest.exe
(Hold down the Windows key, tap R, release the Windows key, type in "wbemtest.exe" and press OK).SELECT IdentifyingNumber,Name,Version FROM Win32_Product
and click "Use" (or equivalent - the tool will be localized).WMIExplorer.exe
SELECT IdentifyingNumber,Name,Version FROM Win32_Product
and press Execute.msiinfo.csv
.' Retrieve all ProductCodes (with ProductName and ProductVersion)
Set fso = CreateObject("Scripting.FileSystemObject")
Set output = fso.CreateTextFile("msiinfo.csv", True, True)
Set installer = CreateObject("WindowsInstaller.Installer")
On Error Resume Next ' we ignore all errors
For Each product In installer.ProductsEx("", "", 7)
productcode = product.ProductCode
name = product.InstallProperty("ProductName")
version=product.InstallProperty("VersionString")
output.writeline (productcode & ", " & name & ", " & version)
Next
output.Close
I can't think of any further general purpose options to retrieve product codes at the moment, please add if you know of any. Just edit inline rather than adding too many comments please.
You can certainly access this information from within your application by calling the MSI automation interface (COM based) OR the C++ MSI installer functions (Win32 API). Or even use WMI queries from within your application like you do in the samples above using
PowerShell
,wbemtest.exe
orWMIExplorer.exe
.
If what you want to do is to uninstall the MSI package you found the product code for, you can do this as follows using an elevated command prompt (search for cmd.exe, right click and run as admin):
Option 1: Basic, interactive uninstall without logging (quick and easy):
msiexec.exe /x {00000000-0000-0000-0000-00000000000C}
Quick Parameter Explanation:
/X = run uninstall sequence
{00000000-0000-0000-0000-00000000000C} = product code for product to uninstall
You can also enable (verbose) logging and run in silent mode if you want to, leading us to option 2:
Option 2: Silent uninstall with verbose logging (better for batch files):
msiexec.exe /x {00000000-0000-0000-0000-00000000000C} /QN /L*V "C:\My.log" REBOOT=ReallySuppress
Quick Parameter Explanation:
/X = run uninstall sequence
{00000000-0000-0000-0000-00000000000C} = product code for product to uninstall
/QN = run completely silently
/L*V "C:\My.log"= verbose logging at specified path
REBOOT=ReallySuppress = avoid unexpected, sudden reboot
There is a comprehensive reference for MSI uninstall here (various different ways to uninstall MSI packages): Uninstalling an MSI file from the command line without using msiexec. There is a plethora of different ways to uninstall.
If you are writing a batch file, please have a look at section 3 in the above, linked answer for a few common and standard uninstall command line variants.
And a quick link to msiexec.exe (command line options) (overview of the command line for msiexec.exe from MSDN). And the Technet version as well.
UPDATE: please find a new answer on how to find the upgrade code for installed packages instead of manually looking up the code in MSI files. For installed packages this is much more reliable. If the package is not installed, you still need to look in the MSI file (or the source file used to compile the MSI) to find the upgrade code. Leaving in older section below:
If you want to get the UpgradeCode or other MSI properties, you can open the cached installation MSI for the product from the location specified by "LocalPackage" in the image show above (something like: C:\WINDOWS\Installer\50c080ae.msi
- it is a hex file name, unique on each system). Then you look in the "Property table" for UpgradeCode (it is possible for the UpgradeCode to be redefined in a transform - to be sure you get the right value you need to retrieve the code programatically from the system - I will provide a script for this shortly. However, the UpgradeCode found in the cached MSI is generally correct).
To open the cached MSI files, use Orca or another packaging tool. Here is a discussion of different tools (any of them will do): What installation product to use? InstallShield, WiX, Wise, Advanced Installer, etc. If you don't have such a tool installed, your fastest bet might be to try Super Orca (it is simple to use, but not extensively tested by me).
UPDATE: here is a new answer with information on various free products you can use to view MSI files: How can I compare the content of two (or more) MSI files?
If you have Visual Studio installed, try searching for Orca-x86_en-us.msi
- under Program Files (x86)
- and install it (this is Microsoft's own, official MSI viewer and editor). Then find Orca in the start menu. Go time in no time :-). Technically Orca is installed as part of Windows SDK (not Visual Studio), but Windows SDK is bundled with the Visual Studio install. If you don't have Visual Studio installed, perhaps you know someone who does? Just have them search for this MSI and send you (it is a tiny half mb file) - should take them seconds. UPDATE: you need several CAB files as well as the MSI - these are found in the same folder where the MSI is found. If not, you can always download the Windows SDK (it is free, but it is big - and everything you install will slow down your PC). I am not sure which part of the SDK installs the Orca MSI. If you do, please just edit and add details here.
Similar topics (for reference and easy access - I should clean this list up):
Note that utility behaviour can genuinely vary between the two.
For example, Cygwin tar can fork - because fork() is supported in the DLL - where the mingw version cannot. This is a problem when trying to compile mysql from source.
if you write while(true). its means that loop will not stop in any situation for stop this loop you have to use break statement between while block.
package com.java.demo;
/**
* @author Ankit Sood Apr 20, 2017
*/
public class Demo {
/**
* The main method.
*
* @param args
* the arguments
*/
public static void main(String[] args) {
/* Initialize while loop */
while (true) {
/*
* You have to declare some condition to stop while loop
* In which situation or condition you want to terminate while loop.
* conditions like: if(condition){break}, if(var==10){break} etc...
*/
/* break keyword is for stop while loop */
break;
}
}
}
You could use Javascript's substring method. For example:
var list = ["bird1", "bird2", "pig1"]
for (var i = 0; i < list.length; i++) {
if (list[i].substring(0,4) == "bird") {
console.log(list[i]);
}
}
Which outputs:
bird1
bird2
Basically, you're checking each item in the array to see if the first four letters are 'bird'. This does assume that 'bird' will always be at the front of the string.
So let's say your getting a pathname from a URL :
Let's say your at bird1?=letsfly - you could use this code to check the URL:
var listOfUrls = [
"bird1?=letsfly",
"bird",
"pigs?=dontfly",
]
for (var i = 0; i < list.length; i++) {
if (listOfUrls[i].substring(0,4) === 'bird') {
// do something
}
}
The above would match the first to URL's, but not the third (not the pig). You could easily swap out url.substring(0,4)
with a regex, or even another javascript method like .contains()
Using the .contains()
method might be a little more secure. You won't need to know which part of the URL 'bird' is at. For instance:
var url = 'www.example.com/bird?=fly'
if (url.contains('bird')) {
// this is true
// do something
}
I found that the repo that had the package was not enabled. On OEL7,
$ vi /etc/yum.repos.d/ULN-Base.repo
Set enabled to 1 for ol7_optional_latest
$ yum install php-bcmath
and that worked...
I used the following command to find where the package was
$ yum --noplugins --showduplicates --enablerepo \* --disablerepo \*-source --disablerepo C5.\*,c5-media,\*debug\*,\*-source list \*bcmath
Why didn't someone tell me I was being a total noob? All I had to do was copy the dateutil
directory to someplace in my Python path, and it was good to go.
In Firefox, these function behave quite differently: log
only prints out a toString
representation, whereas dir
prints out a navigable tree.
In Chrome, log
already prints out a tree -- most of the time. However, Chrome's log
still stringifies certain classes of objects, even if they have properties. Perhaps the clearest example of a difference is a regular expression:
> console.log(/foo/);
/foo/
> console.dir(/foo/);
* /foo/
global: false
ignoreCase: false
lastIndex: 0
...
You can also see a clear difference with arrays (e.g., console.dir([1,2,3])
) which are log
ged differently from normal objects:
> console.log([1,2,3])
[1, 2, 3]
> console.dir([1,2,3])
* Array[3]
0: 1
1: 2
2: 3
length: 3
* __proto__: Array[0]
concat: function concat() { [native code] }
constructor: function Array() { [native code] }
entries: function entries() { [native code] }
...
DOM objects also exhibit differing behavior, as noted on another answer.
target_compile_options
solution above is wrong, it won't link the library.
Use:
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -pthread")
OR
target_link_libraries(XXX PUBLIC pthread)
OR
set_target_properties(XXX PROPERTIES LINK_LIBRARIES -pthread)
It works for me when I define the complete border
property. (JSFiddle here)
.field_set{
border: 1px #F00 solid;
}?
the reason is the border-style
that is set to none
by default for fieldsets. You need to override that as well.
In my case, the problem was that I had different dimensions compared to normal one. I had 48x48 px
whereas it was expecting 32x32 px
and my extension was png so I had to change it to ico
See adjacent selectors on W3.org.
In this case, the selector means that the style applies only to paragraphs directly following another paragraph.
A plain p
selector would apply the style to every paragraph in the page.
This will only work on IE7 or above. In IE6, the style will not be applied to any elements. This also goes for the >
combinator, by the way.
See also Microsoft's overview for CSS compatibility in Internet Explorer.
You need astype
:
df['zipcode'] = df.zipcode.astype(str)
#df.zipcode = df.zipcode.astype(str)
For converting to categorical
:
df['zipcode'] = df.zipcode.astype('category')
#df.zipcode = df.zipcode.astype('category')
Another solution is Categorical
:
df['zipcode'] = pd.Categorical(df.zipcode)
Sample with data:
import pandas as pd
df = pd.DataFrame({'zipcode': {17384: 98125, 2680: 98107, 722: 98005, 18754: 98109, 14554: 98155}, 'bathrooms': {17384: 1.5, 2680: 0.75, 722: 3.25, 18754: 1.0, 14554: 2.5}, 'sqft_lot': {17384: 1650, 2680: 3700, 722: 51836, 18754: 2640, 14554: 9603}, 'bedrooms': {17384: 2, 2680: 2, 722: 4, 18754: 2, 14554: 4}, 'sqft_living': {17384: 1430, 2680: 1440, 722: 4670, 18754: 1130, 14554: 3180}, 'floors': {17384: 3.0, 2680: 1.0, 722: 2.0, 18754: 1.0, 14554: 2.0}})
print (df)
bathrooms bedrooms floors sqft_living sqft_lot zipcode
722 3.25 4 2.0 4670 51836 98005
2680 0.75 2 1.0 1440 3700 98107
14554 2.50 4 2.0 3180 9603 98155
17384 1.50 2 3.0 1430 1650 98125
18754 1.00 2 1.0 1130 2640 98109
print (df.dtypes)
bathrooms float64
bedrooms int64
floors float64
sqft_living int64
sqft_lot int64
zipcode int64
dtype: object
df['zipcode'] = df.zipcode.astype('category')
print (df)
bathrooms bedrooms floors sqft_living sqft_lot zipcode
722 3.25 4 2.0 4670 51836 98005
2680 0.75 2 1.0 1440 3700 98107
14554 2.50 4 2.0 3180 9603 98155
17384 1.50 2 3.0 1430 1650 98125
18754 1.00 2 1.0 1130 2640 98109
print (df.dtypes)
bathrooms float64
bedrooms int64
floors float64
sqft_living int64
sqft_lot int64
zipcode category
dtype: object
If you have resharper, remove all unused reference on your solution.
Most Java developers currently use the third party package Joda-Time. It is widely regarded to be a much better implementation.
Java 8 however will have a new java.time.* package. See this article, Introducing the New Date and Time API for JDK 8.
Just type ma
and press Ctrl + Space, you will get an option for it.
The answer of Pascal Thivent helped me out, too.
But if you manage your plugins within the <pluginManagement>
element, you have to define the assembly again outside of the plugin management, or else the dependencies are not packed in the jar if you run mvn install
.
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<version>1.0.0-SNAPSHOT</version>
<packaging>jar</packaging>
<build>
<pluginManagement>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<mainClass>main.App</mainClass>
</manifest>
</archive>
<descriptorRefs>
<descriptorRef>jar-with-dependencies</descriptorRef>
</descriptorRefs>
</configuration>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</pluginManagement>
<plugins> <!-- did NOT work without this -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-assembly-plugin</artifactId>
</plugin>
</plugins>
</build>
<dependencies>
<!-- dependencies commented out to shorten example -->
</dependencies>
</project>
This solution:
Minimum version of jQuery is 1.12
$(document).ready(function () {
function poll () {
$.get({
url: '/api/stream/',
success: function (data) {
console.log(data)
},
timeout: 10000 // == 10 seconds timeout
}).always(function () {
setTimeout(poll, 30000) // == 30 seconds polling period
})
}
// start polling
poll()
})
For me reinstalling and then upgrading the pip worked.
Reinstall pip by using below command or following link How do I install pip on macOS or OS X?
curl https://bootstrap.pypa.io/get-pip.py -o - | python
Upgrade pip after it's installed
pip install -U pip
It's very simple.
You create a css property to this image.
img { transition: all 0.3s ease-in-out 0s; }
You add an animation like that:
img:hover
{
cursor: default;
transform: rotate(360deg);
transition: all 0.3s ease-in-out 0s;
}
After searching for best implementation how to get best precise user location I managed to combine all the best methods and come up with following class:
/**
* Retrieve accurate location from GPS or network services.
*
*
* Class usage example:
*
* public void onCreate(Bundle savedInstanceState) {
* ...
* my_location = new MyLocation();
* my_location.init(main.this, locationResult);
* }
*
*
* public LocationResult locationResult = new LocationResult(){
* @Override
* public void gotLocation(final Location location){
* // do something
* location.getLongitude();
* location.getLatitude();
* }
* };
*/
class MyLocation{
/**
* If GPS is enabled.
* Use minimal connected satellites count.
*/
private static final int min_gps_sat_count = 5;
/**
* Iteration step time.
*/
private static final int iteration_timeout_step = 500;
LocationResult locationResult;
private Location bestLocation = null;
private Handler handler = new Handler();
private LocationManager myLocationManager;
public Context context;
private boolean gps_enabled = false;
private int counts = 0;
private int sat_count = 0;
private Runnable showTime = new Runnable() {
public void run() {
boolean stop = false;
counts++;
System.println("counts=" + counts);
//if timeout (1 min) exceeded, stop tying
if(counts > 120){
stop = true;
}
//update last best location
bestLocation = getLocation(context);
//if location is not ready or don`t exists, try again
if(bestLocation == null && gps_enabled){
System.println("BestLocation not ready, continue to wait");
handler.postDelayed(this, iteration_timeout_step);
}else{
//if best location is known, calculate if we need to continue to look for better location
//if gps is enabled and min satellites count has not been connected or min check count is smaller then 4 (2 sec)
if(stop == false && !needToStop()){
System.println("Connected " + sat_count + " sattelites. continue waiting..");
handler.postDelayed(this, iteration_timeout_step);
}else{
System.println("#########################################");
System.println("BestLocation finded return result to main. sat_count=" + sat_count);
System.println("#########################################");
// removing all updates and listeners
myLocationManager.removeUpdates(gpsLocationListener);
myLocationManager.removeUpdates(networkLocationListener);
myLocationManager.removeGpsStatusListener(gpsStatusListener);
sat_count = 0;
// send best location to locationResult
locationResult.gotLocation(bestLocation);
}
}
}
};
/**
* Determine if continue to try to find best location
*/
private Boolean needToStop(){
if(!gps_enabled){
return true;
}
else if(counts <= 4){
return false;
}
if(sat_count < min_gps_sat_count){
//if 20-25 sec and 3 satellites found then stop
if(counts >= 40 && sat_count >= 3){
return true;
}
return false;
}
}
return true;
}
/**
* Best location abstract result class
*/
public static abstract class LocationResult{
public abstract void gotLocation(Location location);
}
/**
* Initialize starting values and starting best location listeners
*
* @param Context ctx
* @param LocationResult result
*/
public void init(Context ctx, LocationResult result){
context = ctx;
locationResult = result;
myLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
gps_enabled = (Boolean) myLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
bestLocation = null;
counts = 0;
// turning on location updates
myLocationManager.requestLocationUpdates("network", 0, 0, networkLocationListener);
myLocationManager.requestLocationUpdates("gps", 0, 0, gpsLocationListener);
myLocationManager.addGpsStatusListener(gpsStatusListener);
// starting best location finder loop
handler.postDelayed(showTime, iteration_timeout_step);
}
/**
* GpsStatus listener. OnChainged counts connected satellites count.
*/
public final GpsStatus.Listener gpsStatusListener = new GpsStatus.Listener() {
public void onGpsStatusChanged(int event) {
if(event == GpsStatus.GPS_EVENT_SATELLITE_STATUS){
try {
// Check number of satellites in list to determine fix state
GpsStatus status = myLocationManager.getGpsStatus(null);
Iterable<GpsSatellite>satellites = status.getSatellites();
sat_count = 0;
Iterator<GpsSatellite>satI = satellites.iterator();
while(satI.hasNext()) {
GpsSatellite satellite = satI.next();
System.println("Satellite: snr=" + satellite.getSnr() + ", elevation=" + satellite.getElevation());
sat_count++;
}
} catch (Exception e) {
e.printStackTrace();
sat_count = min_gps_sat_count + 1;
}
System.println("#### sat_count = " + sat_count);
}
}
};
/**
* Gps location listener.
*/
public final LocationListener gpsLocationListener = new LocationListener(){
@Override
public void onLocationChanged(Location location){
}
public void onProviderDisabled(String provider){}
public void onProviderEnabled(String provider){}
public void onStatusChanged(String provider, int status, Bundle extras){}
};
/**
* Network location listener.
*/
public final LocationListener networkLocationListener = new LocationListener(){
@Override
public void onLocationChanged(Location location){
}
public void onProviderDisabled(String provider){}
public void onProviderEnabled(String provider){}
public void onStatusChanged(String provider, int status, Bundle extras){}
};
/**
* Returns best location using LocationManager.getBestProvider()
*
* @param context
* @return Location|null
*/
public static Location getLocation(Context context){
System.println("getLocation()");
// fetch last known location and update it
try {
LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
String strLocationProvider = lm.getBestProvider(criteria, true);
System.println("strLocationProvider=" + strLocationProvider);
Location location = lm.getLastKnownLocation(strLocationProvider);
if(location != null){
return location;
}
return null;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
This class tries to connect to min_gps_sat_count
satellites if GPS is enabled. Else returns LocationManager.getBestProvider()
location. Check the code!
use this..
$(".content_box a:not('.button')")
Looking at man 3 printf
on Linux, OS X, and OpenBSD all show support for %z
for size_t
and %t
for ptrdiff_t
(for C99), but none of those mention off_t
. Suggestions in the wild usually offer up the %u
conversion for off_t
, which is "correct enough" as far as I can tell (both unsigned int
and off_t
vary identically between 64-bit and 32-bit systems).
To answer your second question:
view.setPadding(0,padding,0,0);
like SpK and Jave suggested, will set the padding in pixels. You can set it in dp by calculating the dp value as follows:
int paddingDp = 25;
float density = context.getResources().getDisplayMetrics().density
int paddingPixel = (int)(paddingDp * density);
view.setPadding(0,paddingPixel,0,0);
Hope that helps!
In my case, I had a textbox that was attached to a datepicker. The only solution that worked for me was to handle it inside the onSelect event of the datepicker.
<input type="text" id="bookdate">
$("#bookdate").datepicker({
onSelect: function (selected) {
//handle change event here
}
});
There are below things to do.
git
command can be run successfully in CMDThat means you need to add git
to path when install git or add it to system environment later.
profile.json
Open Settings
, add following snippet inside the word profiles
:
{
"tabTitle": "Git Bash",
"acrylicOpacity" : 0.75,
"closeOnExit" : true,
"colorScheme" : "Campbell",
"commandline" : "C:/Program Files/Git/bin/bash.exe --login",
"cursorColor" : "#FFFFFF",
"cursorShape" : "bar",
"fontFace" : "Consolas",
"fontSize" : 12,
"guid" : "{14ad203f-52cc-4110-90d6-d96e0f41b64d}",
"historySize" : 9001,
"icon": "ms-appdata:///roaming/git-bash_32px.ico",
"name" : "Git Bash",
"padding" : "0, 0, 0, 0",
"snapOnInput" : true,
"useAcrylic" : true
}
The icon can be obtained here: git-bash_32px.ico
You can add icons for Tab to this location:
%LOCALAPPDATA%\packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\RoamingState
Put 32x32 PNG/icons in this folder, and then in profile.json
you can reference the image resource with the path starting with ms-appdata:// .
Note that, please make sure the Guid
is correct and it matches the corresponding correct configs.
Windows Terminal
This error occurred to me when I was debugging the PHP header() function:
header('Location: /aaa/bbb/ccc'); // error
If I use a relative path it works:
header('Location: aaa/bbb/ccc'); // success, but not what I wanted
However when I use an absolute path like /aaa/bbb/ccc
, it gives the exact error:
Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace.
It appears the header function redirects internally without going HTTP at all which is weird. After some tests and trials, I found the solution of adding exit after header():
header('Location: /aaa/bbb/ccc');
exit;
And it works properly.
EDIT: I'm torn on whether to delete this post. As a matter of understanding the CSS syntax, it's good that people know all
exists, and it may at times be preferable to a million individual declarations, depending on the structure of your CSS. On the other hand, it may have a performance penalty, although I've yet to see any data supporting that hypothesis. For now, I'll leave it, but I want people to be aware it's a mixed bag.
You can also simply significantly with:
.nav a {
transition: all .2s;
}
FWIW: all
is implied if not specified, so transition: .2s;
will get you to the same place.
Try using String.replace()
or String.replaceAll()
instead.
String my_new_str = my_str.replace("&", "&");
(Both replace all occurrences; replaceAll
allows use of regex.)
for x in numbers:
print "{:10.4f}".format(x)
prints
23.2300
0.1233
1.0000
4.2230
9887.2000
The format specifier inside the curly braces follows the Python format string syntax. Specifically, in this case, it consists of the following parts:
format()
" – in this case the x
as the only argument.10.4f
part after the colon is the format specification.f
denotes fixed-point notation.10
is the total width of the field being printed, lefted-padded by spaces.4
is the number of digits after the decimal point.Based on kynan's answer, here are the same aliases, modified so they can handle spaces and initial dashes in filenames:
accept-ours = "!f() { [ -z \"$@\" ] && set - '.'; git checkout --ours -- \"$@\"; git add -u -- \"$@\"; }; f"
accept-theirs = "!f() { [ -z \"$@\" ] && set - '.'; git checkout --theirs -- \"$@\"; git add -u -- \"$@\"; }; f"
Use your bean class like this, if your JSON data starts with an an array object. it helps you.
Users[] bean = gson.fromJson(response,Users[].class);
Users is my bean class.
Response is my JSON data.
If you are using MySql Wamp. This code work.
string con="SERVER=localhost; user id=root; password=; database=dbname";
public void delete()
{
try
{
MySqlConnection connect = new MySqlConnection(con);
MySqlDataAdapter da = new MySqlDataAdapter();
connect.Open();
da.DeleteCommand = new MySqlCommand("DELETE FROM table WHERE ID='" + ID.Text + "'", connect);
da.DeleteCommand.ExecuteNonQuery();
MessageBox.Show("Successfully Deleted");
}
catch(Exception e)
{
MessageBox.Show(e.Message);
}
}
SELECT ...
SELECT SLEEP(5);
SELECT ...
But what are you using this for? Are you trying to circumvent/reinvent mutexes or transactions?
You have to do this to echo it:
echo $row['note'];
(The data is coming as an array)
Please note that CSS3 viewport units (vh,vw) wouldn't play well on iOS When you scroll the page, viewport size is somehow recalculated and your size of element which uses viewport units also increases. So, actually some javascript is required.
Rowz = Application.WorksheetFunction.Subtotal(2, Range("A2:A" & Rows(Rows.Count).End(xlUp).Row))
I have simplified NeTeInStEiN's code to be like this:
mWebView.setWebViewClient(new WebViewClient() {
private int webViewPreviousState;
private final int PAGE_STARTED = 0x1;
private final int PAGE_REDIRECTED = 0x2;
@Override
public boolean shouldOverrideUrlLoading(WebView view, String urlNewString) {
webViewPreviousState = PAGE_REDIRECTED;
mWebView.loadUrl(urlNewString);
return true;
}
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
super.onPageStarted(view, url, favicon);
webViewPreviousState = PAGE_STARTED;
if (dialog == null || !dialog.isShowing())
dialog = ProgressDialog.show(WebViewActivity.this, "", getString(R.string.loadingMessege), true, true,
new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// do something
}
});
}
@Override
public void onPageFinished(WebView view, String url) {
if (webViewPreviousState == PAGE_STARTED) {
dialog.dismiss();
dialog = null;
}
}
});
It is easy to understand, OnPageFinished if the previous callback is on onPageStarted, so the page is completely loaded.
head
and pipe with tail
will be slow for a huge file. I would suggest sed
like this:
sed 'NUMq;d' file
Where NUM
is the number of the line you want to print; so, for example, sed '10q;d' file
to print the 10th line of file
.
Explanation:
NUMq
will quit immediately when the line number is NUM
.
d
will delete the line instead of printing it; this is inhibited on the last line because the q
causes the rest of the script to be skipped when quitting.
If you have NUM
in a variable, you will want to use double quotes instead of single:
sed "${NUM}q;d" file
Stream operations flatMap
and map
accept a function as input.
flatMap
expects the function to return a new stream for each element of the stream and returns a stream which combines all the elements of the streams returned by the function for each element. In other words, with flatMap
, for each element from the source, multiple elements will be created by the function. http://www.zoftino.com/java-stream-examples#flatmap-operation
map
expects the function to return a transformed value and returns a new stream containing the transformed elements. In other words, with map
, for each element from the source, one transformed element will be created by the function.
http://www.zoftino.com/java-stream-examples#map-operation
No, it only contains a free 30 day trial. But I think there would be a package if you buy Visual Studio + Xamarin.
GitHub Flavored Markdown doesn't support footnotes, but you can manually fake it¹ with Unicode characters or superscript tags, e.g. <sup>1</sup>
.
¹Of course this isn't ideal, as you are now responsible for maintaining the numbering of your footnotes. It works reasonably well if you only have one or two, though.
First off:
public class ProfileCollection implements Iterable<Profile> {
Second:
return m_Profiles.get(m_ActiveProfile);
You can directly convert using the list
keyword.
For example:
obj=emp.objects.all()
list1=list(obj)
Using the above code you can directly convert a query set result into a
list
.
Here list
is keyword and obj
is result of query set and list1
is variable in that variable we are storing the converted result which in list
.
Save your username, password and sever name in an RDP file and run the RDP file from your script
I think what you're trying to do is:
-(void) score2 {
[self score];
}
The [object message]
syntax is the normal way to call a method in objective-c. I think the @selector
syntax is used when the method to be called needs to be determined at run-time, but I don't know objective-c well enough to give you more information on that.
install.packages("ggplot2movies")
data(movies, package="ggplot2movies")
Plot average Length vs Rating
rating_by_len = tapply(movies$length,
movies$rating,
mean)
plot(names(rating_by_len), rating_by_len, ylim=c(0, 200)
,xlab = "Rating", ylab = "Length", main="Average Rating by Movie Length", pch=21)
Add error bars to the plot: mean - sd, mean + sd
sds = tapply(movies$length, movies$rating, sd)
upper = rating_by_len + sds
lower = rating_by_len - sds
segments(x0=as.numeric(names(rating_by_len)),
y0=lower,
y1=upper)
Hope that helps.
function ConvertDateFromDiv(divTimeStr) {
//eg:-divTimeStr=18/03/2013 12:53:00
var tmstr = divTimeStr.toString().split(' '); //'21-01-2013 PM 3:20:24'
var dt = tmstr[0].split('/');
var str = dt[2] + "/" + dt[1] + "/" + dt[0] + " " + tmstr[1]; //+ " " + tmstr[1]//'2013/01/20 3:20:24 pm'
var time = new Date(str);
if (time == "Invalid Date") {
time = new Date(divTimeStr);
}
return time;
}
I also had same kind of issue. But managed to solve by Invalidate Cash.
From File Menu - > Invalidate Caches/ Restart..
It solved the problem for me.
Check out my answer here: Git submodules: Specify a branch/tag
If you want, you can add the "branch = master" line into your .gitmodules file manually. Read the link to see what I mean.
EDIT: To track an existing submodule project at a branch, follow VonC's instructions here instead:
I just had the exact same issue. Before trying some of the solutions posted here, you might want to check if the component really doesn't work. For me, the error was shown in my IDE (WebStorm), but it turned out that the code worked perfectly when i ran it in the browser.
After I shut down the terminal (that was running ng serve) and restarted my IDE, the message stopped showing up.
I used this method to change choosing Text Field
- (BOOL)textFieldShouldReturn:(UITextField *)textField {
if ([textField isEqual:self.emailRegisterTextField]) {
[self.usernameRegisterTextField becomeFirstResponder];
} else if ([textField isEqual:self.usernameRegisterTextField]) {
[self.passwordRegisterTextField becomeFirstResponder];
} else {
[textField resignFirstResponder];
// To click button for registration when you clicking button "Done" on the keyboard
[self createMyAccount:self.registrationButton];
}
return YES;
}
I see two problems:
DOUBLE(10) precision definitions need a total number of digits, as well as a total number of digits after the decimal:
DOUBLE(10,8) would make be ten total digits, with 8 allowed after the decimal.
Also, you'll need to specify your id column as a key :
CREATE TABLE transactions(
id int NOT NULL AUTO_INCREMENT,
location varchar(50) NOT NULL,
description varchar(50) NOT NULL,
category varchar(50) NOT NULL,
amount double(10,9) NOT NULL,
type varchar(6) NOT NULL,
notes varchar(512),
receipt int(10),
PRIMARY KEY(id) );
Online APK Decompiler
http://www.decompileandroid.com/
https://www.decompiler.com/
APK Decompiler App for Windows
http://forum.xda-developers.com/showthread.php?t=2493107
Update 2015/12/04
ClassyShark you can open APK/Zip/Class/Jar files and analyze their contents.
https://github.com/google/android-classyshark
Update 2021/1/28
https://ibotpeaches.github.io/Apktool/
https://github.com/skylot/jadx
Javascript Functions allow no suspension. With synchronous Javascript procedures are implemented. Procedures await i/o operations and sleep timeouts. Available for javascript 1.7.
Create class with namespace name might resovle your issue
namespace.Employee employee = new namespace.Employee();
employee.ExampleMethod();
The utf8mb4
character set is useful because nowadays we need support for storing not only language characters but also symbols, newly introduced emojis, and so on.
A nice read on How to support full Unicode in MySQL databases by Mathias Bynens can also shed some light on this.
To save and load an arraylist of public static ArrayList data = new ArrayList ();
I used (to write)...
static void saveDatabase() {
try {
FileOutputStream fos = new FileOutputStream("mydb.fil");
ObjectOutputStream oos = new ObjectOutputStream(fos);
oos.writeObject(data);
oos.close();
databaseIsSaved = true;
}
catch (IOException e) {
e.printStackTrace();
}
} // End of saveDatabase
And used (to read) ...
static void loadDatabase() {
try {
FileInputStream fis = new FileInputStream("mydb.fil");
ObjectInputStream ois = new ObjectInputStream(fis);
data = (ArrayList<User>)ois.readObject();
ois.close();
}
catch (IOException e) {
System.out.println("***catch ERROR***");
e.printStackTrace();
}
catch (ClassNotFoundException e) {
System.out.println("***catch ERROR***");
e.printStackTrace();
}
} // End of loadDatabase
You can also use the didSet
to set the variable to a different value. This does not cause the observer to be called again as stated in Properties guide. For example, it is useful when you want to limit the value as below:
let minValue = 1
var value = 1 {
didSet {
if value < minValue {
value = minValue
}
}
}
value = -10 // value is minValue now.
Firstly name
isn't a valid attribute of an option
element. Instead you could use a data
parameter, like this:
<option value="foo" data-name="bar">Foo Bar</option>
The main issue you have is that the JS is looking at the name
attribute of the select
element, not the chosen option. Try this:
$('#band_type_choices').on('change', function() {
$('.checkboxlist').hide();
$('#checkboxlist_' + $('option:selected', this).data("name")).css("display", "block");
});
Note the option:selected
selector within the context of the select
which raised the change event.
One can simply use the pydoc.locate
function.
from pydoc import locate
my_class = locate("module.submodule.myclass")
instance = my_class()
Well, I'm not sure that merge would be the way to go. Personally I would build a new data frame by creating an index of the dates and then constructing the columns using list comprehensions. Possibly not the most pythonic way, but it seems to work for me!
import pandas as pd
import numpy as np
df1 = pd.DataFrame(np.random.randn(5,3), index=pd.date_range('01/02/2014',periods=5,freq='D'), columns=['a','b','c'] )
df2 = pd.DataFrame(np.random.randn(8,3), index=pd.date_range('01/01/2014',periods=8,freq='D'), columns=['a','b','c'] )
# Create an index list from the set of dates in both data frames
Index = list(set(list(df1.index) + list(df2.index)))
Index.sort()
df3 = pd.DataFrame({'df1': [df1.loc[Date, 'c'] if Date in df1.index else np.nan for Date in Index],\
'df2': [df2.loc[Date, 'c'] if Date in df2.index else np.nan for Date in Index],},\
index = Index)
df3
I believe this would also work:
select count(distinct switch_id)
from [email protected]
where
dealer_name = 'XXXX'
and (creation_date BETWEEN add_months(trunc(sysdate,'mm'),-1) and trunc(sysdate, 'mm'))
It has the advantage of using BETWEEN which is the way the OP used his date selection criteria.
A better way to handle this as of now (1.1) is to do this in Startup.cs
's Configure()
:
app.UseExceptionHandler("/Error");
This will execute the route for /Error
. This will save you from adding try-catch blocks to every action you write.
Of course, you'll need to add an ErrorController similar to this:
[Route("[controller]")]
public class ErrorController : Controller
{
[Route("")]
[AllowAnonymous]
public IActionResult Get()
{
return StatusCode(StatusCodes.Status500InternalServerError);
}
}
More information here.
In case you want to get the actual exception data, you may add this to the above Get()
right before the return
statement.
// Get the details of the exception that occurred
var exceptionFeature = HttpContext.Features.Get<IExceptionHandlerPathFeature>();
if (exceptionFeature != null)
{
// Get which route the exception occurred at
string routeWhereExceptionOccurred = exceptionFeature.Path;
// Get the exception that occurred
Exception exceptionThatOccurred = exceptionFeature.Error;
// TODO: Do something with the exception
// Log it with Serilog?
// Send an e-mail, text, fax, or carrier pidgeon? Maybe all of the above?
// Whatever you do, be careful to catch any exceptions, otherwise you'll end up with a blank page and throwing a 500
}
Above snippet taken from Scott Sauber's blog.
It's a language abstraction - some languages have both, some one, some neither.
In the case of C++, the code is not run in either the stack or the heap. You can test what happens if you run out of heap memory by repeatingly calling new
to allocate memory in a loop without calling delete
to free it it. But make a system backup before doing this.
Its late, yet it's worth your time nothing that, there are some differences in browser level implementation of focusin and focusout events and react synthetic onFocus and onBlur. focusin and focusout actually bubble, while onFocus and onBlur dont. So there is no exact same implementation for focusin and focusout as of now for react. Anyway most cases will be covered in onFocus and onBlur.
You just have to use your local IP address:using the cmd command "ipconfig" and your server port number like this:
String webServiceUrl = "http://192.168.X.X:your_local_server_port/your_web_service_name.php"
And make sure you did set the internet permission in your project manifest
It's working perfectly for me
Good Luck
If you are in a network of users, then the username will be different:
Environment.UserName
- Will Display format : 'Username'
rather than
System.Security.Principal.WindowsIdentity.GetCurrent().Name
- Will Display format : 'NetworkName\Username'
Choose the format you want.
What does
$ git config --get-regexp '^(remote|branch)\.'
returns (executed within your git repository) ?
Origin is just a default naming convention for referring to a remote Git repository.
If it does not refer to GitHub (but rather a path to your teammate repository, path which may no longer be valid or available), just add another origin, like in this Bloggitation entry
$ git remote add origin2 [email protected]:myLogin/myProject.git
$ git push origin2 master
(I would actually use the name 'github' rather than 'origin' or 'origin2')
Permission denied (publickey).
fatal: The remote end hung up unexpectedly
Check if your gitHub identity is correctly declared in your local Git repository, as mentioned in the GitHub Help guide. (both user.name and github.name -- and github.token)
Then, stonean blog suggests (as does Marcio Garcia):
$ cd ~/.ssh
$ ssh-add id_rsa
Aral Balkan adds: create a config file
The solution was to create a config file under ~/.ssh/ as outlined at the bottom of the OS X section of this page.
Here's the file I added, as per the instructions on the page, and my pushes started working again:
Host github.com
User git
Port 22
Hostname github.com
IdentityFile ~/.ssh/id_rsa
TCPKeepAlive yes
IdentitiesOnly yes
You can also post the result of
ssh -v [email protected]
to have more information as to why GitHub ssh connection rejects you.
Check also you did enter correctly your public key (it needs to end with '==
').
Do not paste your private key, but your public one. A public key would look something like:
ssh-rsa AAAAB3<big string here>== [email protected]
(Note: did you use a passphrase for your ssh keys ? It would be easier without a passphrase)
Check also the url used when pushing ([email protected]/...
, not git://github.com/...
)
Check that you do have a SSH Agent to use and cache your key.
Try this:
$ ssh -i path/to/public/key [email protected]
If that works, then it means your key is not being sent to GitHub by your ssh client.
You can't read mouse position in jQuery without using an event. Note firstly that the event.pageX
and event.pageY
properties exists on any event, so you could do:
$('#myEl').click(function(e) {
console.log(e.pageX);
});
Your other option is to use a closure to give your whole code access to a variable that is updated by a mousemove handler:
var mouseX, mouseY;
$(document).mousemove(function(e) {
mouseX = e.pageX;
mouseY = e.pageY;
}).mouseover(); // call the handler immediately
// do something with mouseX and mouseY
Have you tried calling BigInteger#intValue() ?
You need to understand java generics. You have a list of ClientThread
but trying to get String
. You have other errors, but this one is very basic.
This is my implementation based on many answers above:
var activeRequest = false; //global var
var filters = {...};
apply_filters(filters);
//function triggering the ajax request
function apply_filters(filters){
//prepare data and other functionalities
var data = {};
//limit the ajax calls
if (activeRequest === false){
activeRequest = true;
}else{
//abort if another ajax call is pending
$request.abort();
//just to be sure the ajax didn't complete before and activeRequest it's already false
activeRequest = true;
}
$request = $.ajax({
url : window.location.origin + '/your-url.php',
data: data,
type:'POST',
beforeSend: function(){
$('#ajax-loader-custom').show();
$('#blur-on-loading').addClass('blur');
},
success:function(data_filters){
data_filters = $.parseJSON(data_filters);
if( data_filters.posts ) {
$(document).find('#multiple-products ul.products li:last-child').after(data_filters.posts).fadeIn();
}
else{
return;
}
$('#ajax-loader-custom').fadeOut();
},
complete: function() {
activeRequest = false;
}
});
}
$date = strtotime("+1 day");
echo date('m-d-y',$date);
By using to_string
print(df.Name.to_string(index=False))
Adam
Bob
Cathy
This is made from the other solutions above.
$(document).ready(function(){
$("button").click(function(event){
$(".area").toggle();
event.stopPropagation(); //stops the click event to go "throu" the button an hit the document
});
$(document).click(function() {
$(".area").hide();
});
$(".interface").click(function(event) {
event.stopPropagation();
return false;
});
});
<div>
<div>
<button> Press here for content</button>
<div class="area">
<div class="interface"> Content</div>
</div>
</div>
</div>
I like the following because it puts the results into a vector, supports a string as a delim and gives control over keeping empty values. But, it doesn't look as good then.
#include <ostream>
#include <string>
#include <vector>
#include <algorithm>
#include <iterator>
using namespace std;
vector<string> split(const string& s, const string& delim, const bool keep_empty = true) {
vector<string> result;
if (delim.empty()) {
result.push_back(s);
return result;
}
string::const_iterator substart = s.begin(), subend;
while (true) {
subend = search(substart, s.end(), delim.begin(), delim.end());
string temp(substart, subend);
if (keep_empty || !temp.empty()) {
result.push_back(temp);
}
if (subend == s.end()) {
break;
}
substart = subend + delim.size();
}
return result;
}
int main() {
const vector<string> words = split("So close no matter how far", " ");
copy(words.begin(), words.end(), ostream_iterator<string>(cout, "\n"));
}
Of course, Boost has a split()
that works partially like that. And, if by 'white-space', you really do mean any type of white-space, using Boost's split with is_any_of()
works great.
I know I'm late, but this is my version:
from time import perf_counter
board = [
[8, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 3, 6, 0, 0, 0, 0, 0],
[0, 7, 0, 0, 9, 0, 2, 0, 0],
[0, 5, 0, 0, 0, 7, 0, 0, 0],
[0, 0, 0, 0, 4, 5, 7, 0, 0],
[0, 0, 0, 1, 0, 0, 0, 3, 0],
[0, 0, 1, 0, 0, 0, 0, 6, 8],
[0, 0, 8, 5, 0, 0, 0, 1, 0],
[0, 9, 0, 0, 0, 0, 4, 0, 0]
]
def solve(bo):
find = find_empty(bo)
if not find: # if find is None or False
return True
else:
row, col = find
for num in range(1, 10):
if valid(bo, num, (row, col)):
bo[row][col] = num
if solve(bo):
return True
bo[row][col] = 0
return False
def valid(bo, num, pos):
# Check row
for i in range(len(bo[0])):
if bo[pos[0]][i] == num and pos[1] != i:
return False
# Check column
for i in range(len(bo)):
if bo[i][pos[1]] == num and pos[0] != i:
return False
# Check box
box_x = pos[1] // 3
box_y = pos[0] // 3
for i in range(box_y*3, box_y*3 + 3):
for j in range(box_x*3, box_x*3 + 3):
if bo[i][j] == num and (i, j) != pos:
return False
return True
def print_board(bo):
for i in range(len(bo)):
if i % 3 == 0:
if i == 0:
print(" ?-------------------------?")
else:
print(" ?-------------------------?")
for j in range(len(bo[0])):
if j % 3 == 0:
print(" ? ", end=" ")
if j == 8:
print(bo[i][j], " ?")
else:
print(bo[i][j], end=" ")
print(" ?-------------------------?")
def find_empty(bo):
for i in range(len(bo)):
for j in range(len(bo[0])):
if bo[i][j] == 0:
return i, j # row, column
return None
print('\n--------------------------------------\n')
print('× Unsolved Suduku :-')
print_board(board)
print('\n--------------------------------------\n')
t1 = perf_counter()
solve(board)
t2 = perf_counter()
print('× Solved Suduku :-')
print_board(board)
print('\n--------------------------------------\n')
print(f' TIME TAKEN = {round(t2-t1,3)} SECONDS')
print('\n--------------------------------------\n')
It uses backtracking. But is not coded by me, it's Tech With Tim's. That list contains the world hardest sudoku, and by implementing the timing function, the time is:
===========================
[Finished in 2.838 seconds]
===========================
But with a simple sudoku puzzle like:
board = [
[7, 8, 0, 4, 0, 0, 1, 2, 0],
[6, 0, 0, 0, 7, 5, 0, 0, 9],
[0, 0, 0, 6, 0, 1, 0, 7, 8],
[0, 0, 7, 0, 4, 0, 2, 6, 0],
[0, 0, 1, 0, 5, 0, 9, 3, 0],
[9, 0, 4, 0, 6, 0, 0, 0, 5],
[0, 7, 0, 3, 0, 0, 0, 1, 2],
[1, 2, 0, 0, 0, 7, 4, 0, 0],
[0, 4, 9, 2, 0, 6, 0, 0, 7]
]
The result is :
===========================
[Finished in 0.011 seconds]
===========================
Pretty fast I can say.
requests
does not handle parsing XML responses, no. XML responses are much more complex in nature than JSON responses, how you'd serialize XML data into Python structures is not nearly as straightforward.
Python comes with built-in XML parsers. I recommend you use the ElementTree API:
import requests
from xml.etree import ElementTree
response = requests.get(url)
tree = ElementTree.fromstring(response.content)
or, if the response is particularly large, use an incremental approach:
response = requests.get(url, stream=True)
# if the server sent a Gzip or Deflate compressed response, decompress
# as we read the raw stream:
response.raw.decode_content = True
events = ElementTree.iterparse(response.raw)
for event, elem in events:
# do something with `elem`
The external lxml project builds on the same API to give you more features and power still.
The best approach would depend on how you plan to arrange those components. A few example scenarios that come to mind right now:
<Filters />
is a child component of <List />
<Filters />
and <List />
are children of a parent component<Filters />
and <List />
live in separate root components entirely.There may be other scenarios that I'm not thinking of. If yours doesn't fit within these, then let me know. Here are some very rough examples of how I've been handling the first two scenarios:
You could pass a handler from <List />
to <Filters />
, which could then be called on the onChange
event to filter the list with the current value.
/** @jsx React.DOM */
var Filters = React.createClass({
handleFilterChange: function() {
var value = this.refs.filterInput.getDOMNode().value;
this.props.updateFilter(value);
},
render: function() {
return <input type="text" ref="filterInput" onChange={this.handleFilterChange} placeholder="Filter" />;
}
});
var List = React.createClass({
getInitialState: function() {
return {
listItems: ['Chicago', 'New York', 'Tokyo', 'London', 'San Francisco', 'Amsterdam', 'Hong Kong'],
nameFilter: ''
};
},
handleFilterUpdate: function(filterValue) {
this.setState({
nameFilter: filterValue
});
},
render: function() {
var displayedItems = this.state.listItems.filter(function(item) {
var match = item.toLowerCase().indexOf(this.state.nameFilter.toLowerCase());
return (match !== -1);
}.bind(this));
var content;
if (displayedItems.length > 0) {
var items = displayedItems.map(function(item) {
return <li>{item}</li>;
});
content = <ul>{items}</ul>
} else {
content = <p>No items matching this filter</p>;
}
return (
<div>
<Filters updateFilter={this.handleFilterUpdate} />
<h4>Results</h4>
{content}
</div>
);
}
});
React.renderComponent(<List />, document.body);
Similar to scenario #1, but the parent component will be the one passing down the handler function to <Filters />
, and will pass the filtered list to <List />
. I like this method better since it decouples the <List />
from the <Filters />
.
/** @jsx React.DOM */
var Filters = React.createClass({
handleFilterChange: function() {
var value = this.refs.filterInput.getDOMNode().value;
this.props.updateFilter(value);
},
render: function() {
return <input type="text" ref="filterInput" onChange={this.handleFilterChange} placeholder="Filter" />;
}
});
var List = React.createClass({
render: function() {
var content;
if (this.props.items.length > 0) {
var items = this.props.items.map(function(item) {
return <li>{item}</li>;
});
content = <ul>{items}</ul>
} else {
content = <p>No items matching this filter</p>;
}
return (
<div className="results">
<h4>Results</h4>
{content}
</div>
);
}
});
var ListContainer = React.createClass({
getInitialState: function() {
return {
listItems: ['Chicago', 'New York', 'Tokyo', 'London', 'San Francisco', 'Amsterdam', 'Hong Kong'],
nameFilter: ''
};
},
handleFilterUpdate: function(filterValue) {
this.setState({
nameFilter: filterValue
});
},
render: function() {
var displayedItems = this.state.listItems.filter(function(item) {
var match = item.toLowerCase().indexOf(this.state.nameFilter.toLowerCase());
return (match !== -1);
}.bind(this));
return (
<div>
<Filters updateFilter={this.handleFilterUpdate} />
<List items={displayedItems} />
</div>
);
}
});
React.renderComponent(<ListContainer />, document.body);
When the components can't communicate between any sort of parent-child relationship, the documentation recommends setting up a global event system.
Here's a nice answer from the FAQ on the scipy.org website:
What advantages do NumPy arrays offer over (nested) Python lists?
Python’s lists are efficient general-purpose containers. They support (fairly) efficient insertion, deletion, appending, and concatenation, and Python’s list comprehensions make them easy to construct and manipulate. However, they have certain limitations: they don’t support “vectorized” operations like elementwise addition and multiplication, and the fact that they can contain objects of differing types mean that Python must store type information for every element, and must execute type dispatching code when operating on each element. This also means that very few list operations can be carried out by efficient C loops – each iteration would require type checks and other Python API bookkeeping.
Easiest way:
// Prefs.h
#define PREFS_MY_CONSTANT @"prefs_my_constant"
Better way:
// Prefs.h
extern NSString * const PREFS_MY_CONSTANT;
// Prefs.m
NSString * const PREFS_MY_CONSTANT = @"prefs_my_constant";
One benefit of the second is that changing the value of a constant does not cause a rebuild of your entire program.
Based on @Ross's answer answer for Chart.js 2.0 and up, I had to include a little tweak to guard against the case when the bar's heights comes too chose to the scale boundary.
The animation
attribute of the bar chart's option:
animation: {
duration: 500,
easing: "easeOutQuart",
onComplete: function () {
var ctx = this.chart.ctx;
ctx.font = Chart.helpers.fontString(Chart.defaults.global.defaultFontFamily, 'normal', Chart.defaults.global.defaultFontFamily);
ctx.textAlign = 'center';
ctx.textBaseline = 'bottom';
this.data.datasets.forEach(function (dataset) {
for (var i = 0; i < dataset.data.length; i++) {
var model = dataset._meta[Object.keys(dataset._meta)[0]].data[i]._model,
scale_max = dataset._meta[Object.keys(dataset._meta)[0]].data[i]._yScale.maxHeight;
ctx.fillStyle = '#444';
var y_pos = model.y - 5;
// Make sure data value does not get overflown and hidden
// when the bar's value is too close to max value of scale
// Note: The y value is reverse, it counts from top down
if ((scale_max - model.y) / scale_max >= 0.93)
y_pos = model.y + 20;
ctx.fillText(dataset.data[i], model.x, y_pos);
}
});
}
}
You cannot session_start(); when your buffer has already been partly sent.
This mean, if your script already sent informations (something you want, or an error report) to the client, session_start() will fail.
To add to craig_h's comment above (I currently don't have enough rep to add this as a comment to his answer, sorry), if your primary key is not an integer, you'll also want to tell your model what data type it is, by setting keyType at the top of the model definition.
public $keyType = 'string'
Eloquent understands any of the types defined in the castAttribute()
function, which as of Laravel 5.4 are: int, float, string, bool, object, array, collection, date and timestamp.
This will ensure that your primary key is correctly cast into the equivalent PHP data type.
Here is perhaps a different way for you to achieve this. Pass into the directive both the index and the item and let the directive setup the html in a template:
Demo: http://plnkr.co/edit/ybcNosdPA76J1IqXjcGG?p=preview
html:
<ul id="thumbnails">
<li class="thumbnail" ng-repeat="item in items" options='#my-container' itemdata='item' index="$index">
</li>
</ul>
js directive:
app.directive('thumbnail', [function() {
return {
restrict: 'CA',
replace: false,
transclude: false,
scope: {
index: '=index',
item: '=itemdata'
},
template: '<a href="#"><img src="{{item.src}}" alt="{{item.alt}}" /></a>',
link: function(scope, elem, attrs) {
if (parseInt(scope.index) == 0) {
angular.element(attrs.options).css({'background-image':'url('+ scope.item.src +')'});
}
elem.bind('click', function() {
var src = elem.find('img').attr('src');
// call your SmoothZoom here
angular.element(attrs.options).css({'background-image':'url('+ scope.item.src +')'});
});
}
}
}]);
You probably would be better off adding a ng-click to the image as pointed out in another answer.
Update
The link for the demo was incorrect. It has been updated to: http://plnkr.co/edit/ybcNosdPA76J1IqXjcGG?p=preview
Just to further complicate things, you are not guaranteed to get a valid filename just by removing invalid characters. Since allowed characters differ on different filenames, a conservative approach could end up turning a valid name into an invalid one. You may want to add special handling for the cases where:
The string is all invalid characters (leaving you with an empty string)
You end up with a string with a special meaning, eg "." or ".."
On windows, certain device names are reserved. For instance, you can't create a file named "nul", "nul.txt" (or nul.anything in fact) The reserved names are:
CON, PRN, AUX, NUL, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, and LPT9
You can probably work around these issues by prepending some string to the filenames that can never result in one of these cases, and stripping invalid characters.
This is another valid way to make a copy of a vector, just use its constructor:
std::vector<int> newvector(oldvector);
This is even simpler than using std::copy
to walk the entire vector from start to finish to std::back_insert
them into the new vector.
That being said, your .swap()
one is not a copy, instead it swaps the two vectors. You would modify the original to not contain anything anymore! Which is not a copy.
You need to either put the code below the HTML or load if using the document load event:
<input type="text" id="goal-input" name="goal" />
<script type="text/javascript">
$(function(){
$("#goal-input").focus();
});
</script>
Update:
Switching divs doesn't trigger the document load event since everything already have been loaded. You need to focus it when you switch div:
if (goal) {
step1.fadeOut('fast', function() {
step1.hide();
step2.fadeIn('fast', function() {
$("#name").focus();
});
});
}
Tthe problems may be caused by incorrect mapping. Are you sure you have your result set in "data"? In my example, the backend code returns results under "items" key, so the mapping should look like:
results: $.map(data.items, function (item) {
....
}
and not:
results: $.map(data, function (item) {
....
}
<?PHP
echo "Firstline";
include('classes/connection.php');
echo "I will run if include but not on Require";
?>
A very simple Practical example with code. The first echo will be displayed. No matter you use include or require because its runs before include or required.
To check the result, In second line of a code intentionally provide the wrong path to the file or make error in file name. Thus the second echo to be displayed or not will be totally dependent on whether you use require or include.
If you use require the second echo will not execute but if you use include not matter what error comes you will see the result of second echo too.
This script worked for me for recursive renaming with directories/file names possibly containing white-spaces:
find . -type f -name "*\;*" | while read fname; do
dirname=`dirname "$fname"`
filename=`basename "$fname"`
newname=`echo "$filename" | sed -e "s/;/ /g"`
mv "${dirname}/$filename" "${dirname}/$newname"
done
Notice the sed
expression which in this example replaces all occurrences of ;
with space . This should of course be replaced according to the specific needs.
Good quote taken from a blog
The DOM component is "garbage collected", as is the JScript component, which means that if you create an object within either component, and then lose track of that object, it will eventually be cleaned up.
For example:
function makeABigObject() {
var bigArray = new Array(20000);
}
When you call that function, the JScript component creates an object (named bigArray) that is accessible within the function. As soon as the function returns, though, you "lose track" of bigArray because there's no way to refer to it anymore. Well, the JScript component realizes that you've lost track of it, and so bigArray is cleaned up--its memory is reclaimed. The same sort of thing works in the DOM component. If you say document.createElement('div')
, or something similar, then the DOM component creates an object for you. Once you lose track of that object somehow, the DOM component will clean up the related.
The native DOM method does the right thing:
$('.cssbuttongo')[0].click();
^
Important!
This works regardless of whether the href
is a URL, a fragment (e.g. #blah
) or even a javascript:
.
Note that this calls the DOM click
method instead of the jQuery click
method (which is very incomplete and completely ignores href
).
Since you are using namedtuple
as a data class, you should be aware that python 3.7 will introduce a @dataclass
decorator for this very purpose -- and of course it has default values.
@dataclass
class C:
a: int # 'a' has no default value
b: int = 0 # assign a default value for 'b'
Much cleaner, readable and usable than hacking namedtuple
. It is not hard to predict that usage of namedtuple
s will drop with the adoption of 3.7.
Dunno if something like this works in js, in PHP and Python which i use quite often it is possible. Maybe just use for loop like:
function doStuff(){
for(i=1; i<=4; i++){
var i = document.getElementById("myCiricle"+i);
}
}
You can speed up your Eclipse or Android Studio work, you just follow these:
I am also using Android Studio with 4-GB installed main memory but following these statements really boost my Android Studio performance.
You can transform array of strings to array of numbers in one line:
const arrayOfNumbers = arrayOfStrings.map(e => +e);
An enum is just another class in Java, it should be possible.
More accurately, an enum is an instance of Object: http://docs.oracle.com/javase/6/docs/api/java/lang/Enum.html
So yes, it should work.
For Android Studio 3.1, select the icon below the Build one in the Build window.
By Android Studio 3.3 (possibly in 3.2.1), the icon has changed, though the location is the same:
The build window should open when you run a build action (e.g. from the Build menu). If you don't see it, you can try the "Build" button along the bottom of the window (also visible in the above screenshots), or through the menus View ? Tool Windows ? Build.
Here is a polyglot program for BASH and Windows CMD that runs a series of commands and quits out if any of them fail:
#!/bin/bash 2> nul
:; set -o errexit
:; function goto() { return $?; }
command 1 || goto :error
command 2 || goto :error
command 3 || goto :error
:; exit 0
exit /b 0
:error
exit /b %errorlevel%
I have used this type of thing in the past for a multiple platform continuous integration script.
First, make sure you ask yourself the question "Should I really be using an Array here"?
Unless you're building something where speed is of the utmost importance, a typed List, like List<int>
is probably the way to go. The only time I ever use arrays are for byte arrays when sending stuff over the network. Other than that, I never touch them.
This is basically an updated version of the accepted answer for connect version 3:
var connect = require('connect');
var serveStatic = require('serve-static');
var app = connect();
app.use(serveStatic(__dirname, {'index': ['index.html']}));
app.listen(3000);
I also added a default option so that index.html is served as a default.
You can try the following tutorial, it may help you to move forward:
I collected some ideas from other SO question (largely from here and this css page)
The idea is to use relative and absolute positioning to move your line to the bottom:
@media (min-width: 768px ) {
.row {
position: relative;
}
#bottom-align-text {
position: absolute;
bottom: 0;
right: 0;
}}
The display:flex
option is at the moment a solution to make the div get the same size as its parent. This breaks on the other hand the bootstrap possibilities to auto-linebreak on small devices by adding col-sx-12
class. (This is why the media query is needed)
My 2p...
string Serialise<T>(T serialisableObject)
{
var xmlSerializer = new XmlSerializer(serialisableObject.GetType());
using (var ms = new MemoryStream())
{
using (var xw = XmlWriter.Create(ms,
new XmlWriterSettings()
{
Encoding = new UTF8Encoding(false),
Indent = true,
NewLineOnAttributes = true,
}))
{
xmlSerializer.Serialize(xw,serialisableObject);
return Encoding.UTF8.GetString(ms.ToArray());
}
}
}
You can place a TEXTAREA of similar size under your DIV, so the standard control's frame would be visible around div.
It's probably good to set it to be disabled, to prevent accidental focus stealing.
You could use the SQL%ROWCOUNT
Oracle variable:
UPDATE table1
SET field2 = value2,
field3 = value3
WHERE field1 = value1;
IF (SQL%ROWCOUNT = 0) THEN
INSERT INTO table (field1, field2, field3)
VALUES (value1, value2, value3);
END IF;
It would be easier just to determine if your primary key (i.e. field1
) has a value and then perform an insert or update accordingly. That is, if you use said values as parameters for a stored procedure.
In addition to this:
input:-webkit-autofill{
-webkit-box-shadow: 0 0 0px 1000px white inset;
}
You might also want to add
input:-webkit-autofill:focus{
-webkit-box-shadow: 0 0 0px 1000px white inset, 0 0 8px rgba(82, 168, 236, 0.6);
}
Other wise, when you click on the input, the yellow color will come back. For the focus, if you are using bootstrap, the second part is for the border highlighting 0 0 8px rgba(82, 168, 236, 0.6);
Such that it will just look like any bootstrap input.
I've just had the same issue but using sourcetree on windows Same steps for normal GIT on Windows as well. Following the following steps I was able to solve this issue.
This should solve your issue with the self-signed certificates and using GIT.
I tried using the "http.sslcapath" configuration but this did not work. Also if i did not include the whole chain in the certificates file then this would also fail. If anyone has pointers on these please let me know as the above has to be repeated for a new install.
If this is the system GIT then you can use the options in TOOLS -> options GIt tab to use the system GIT and this then solves the issue in sourcetree as well.
Same error, I upgrade my Junit
and resolve it
org.junit.jupiter:junit-jupiter-api:5.0.0-M6
to
org.junit.jupiter:junit-jupiter-api:5.0.0
We all agree that SAF is horribly designed and slow, but Google has been pushing us to it. Given that getExternalStorageDirectory()
had been long deprecated, and possibly won't work since 11, I would rather not using these solutions, as it is one update away from crashing...
SQL tables have no implicit ordering, the order has to come from the data. Perhaps you should add a field to your table (e.g. an int counter) and re-import the data.
However that will only give the order of the import and not the data. If your data has no ordering you have to find out how to add it.
EDIT: you say
...to make sure it imported everything.
What's wrong with using row count?
If you want to upload the file /Applications/XAMPP/htdocs/keypairfile.pem
to ec2-user@publicdns:/var/www/html
, you can simply do:
scp -Cr /Applications/XAMPP/htdocs/keypairfile.pem/uploads/ ec2-user@publicdns:/var/www/html/
Where:
-C
- Compress data-r
- RecursiveYou can insert object items to an array as this
let obj = {_x000D_
'1st': {_x000D_
name: 'stackoverflow'_x000D_
},_x000D_
'2nd': {_x000D_
name: 'stackexchange'_x000D_
}_x000D_
};_x000D_
_x000D_
let wholeArray = Object.keys(obj).map(key => obj[key]);_x000D_
_x000D_
console.log(wholeArray);
_x000D_
HashSet<T>
is what you're looking for. From MSDN (emphasis added):
The
HashSet<T>
class provides high-performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order.
Note that the HashSet<T>.Add(T item)
method returns a bool
-- true
if the item was added to the collection; false
if the item was already present.
list.insert with any index >= len(of_the_list) places the value at the end of list. It behaves like append
Python 3.7.4
>>>lst=[10,20,30]
>>>lst.insert(len(lst), 101)
>>>lst
[10, 20, 30, 101]
>>>lst.insert(len(lst)+50, 202)
>>>lst
[10, 20, 30, 101, 202]
Time complexity, append O(1), insert O(n)
you can also use Boost.
boost::filesystem::exists( filename );
it works for files and folders.
And you will have an implementation close to something ready for C++14 in which filesystem should be part of the STL (see here).
I'd use standard javascript:
for (var m in myMap){
for (var i=0;i<myMap[m].length;i++){
... do something with myMap[m][i] ...
}
}
Note the different ways of treating objects and arrays.
You are trying to access an XLS file. However, you are using XSSFWorkbook and XSSFSheet class objects. These classes are mainly used for XLSX files.
For XLS file: HSSFWorkbook
& HSSFSheet
For XLSX file: XSSFSheet
& XSSFSheet
So in place of XSSFWorkbook
use HSSFWorkbook
and in place of XSSFSheet
use HSSFSheet
.
So your code should look like this after the changes are made:
HSSFWorkbook workbook = new HSSFWorkbook(file);
HSSFSheet sheet = workbook.getSheetAt(0);
curl 7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.19.1 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
You are using a very old version of curl. My guess is that you run into the bug described 6 years ago. Fix is to update your curl.
# python
d={320:1, 321:0, 322:3}
reduce(lambda x,y: x if d[x]<=d[y] else y, d.iterkeys())
321
As an addition to brilliant answers of Daniel and 0__, I have to say that Scala understands Unicode analogs for some of the symbols, so instead of
for (n <- 1 to 10) n % 2 match {
case 0 => println("even")
case 1 => println("odd")
}
one may write
for (n ? 1 to 10) n % 2 match {
case 0 ? println("even")
case 1 ? println("odd")
}
You should use java.time classes with Java 8 and later. To use java.time, add:
import java.time.* ;
Below is an example, how you can format date.
DateTimeFormatter format = DateTimeFormatter.ofPattern("dd-MMM-yyyy");
String date = "15-Oct-2018";
LocalDate localDate = LocalDate.parse(date, formatter);
System.out.println(localDate);
System.out.println(formatter.format(localDate));
Thanks for above answer , here is my jQuery code that is working now:
$(".header-login-li").click(function(){
activaTab('pane_login');
});
$(".header-register-li").click(function(){
activaTab('pane_reg');
$("#reg_log_modal_header_text").css()
});
function activaTab(tab){
$('.nav-tabs a[href="#' + tab + '"]').tab('show');
};
Dump the configuration:
$ nginx -T
...
server {
...
location / {
root /usr/share/nginx/html;
...
}
...
}
What you get might be different since it depends on how your nginx
was configured/installed.
References:
Update: There's some confusion on the issue of if/when the -T
option was added to nginx
. It was documented in the man page by vl-homutov on 2015 June 16, which became part of the v1.9.2 release. It's even mentioned in the release notes. The -T
option has been present in every nginx
release since, including the one available on Ubuntu 16.04.1 LTS:
root@23cc8e58640e:/# nginx -h
nginx version: nginx/1.10.0 (Ubuntu)
Usage: nginx [-?hvVtTq] [-s signal] [-c filename] [-p prefix] [-g directives]
Options:
-?,-h : this help
-v : show version and exit
-V : show version and configure options then exit
-t : test configuration and exit
-T : test configuration, dump it and exit
-q : suppress non-error messages during configuration testing
-s signal : send signal to a master process: stop, quit, reopen, reload
-p prefix : set prefix path (default: /usr/share/nginx/)
-c filename : set configuration file (default: /etc/nginx/nginx.conf)
-g directives : set global directives out of configuration file
.attr()
can do that .prop()
can't: affect CSS selectorsHere's an issue I didn't see in the other answers.
CSS selector [name=value]
.attr('name', 'value')
.prop('name', 'value')
.prop()
affects only a few attribute-selectors
input[name]
(thanks @TimDown).attr()
affects all attribute-selectors
input[value]
input[naame]
span[name]
input[data-custom-attribute]
(neither will .data('custom-attribute')
affect this selector)You could consider 'for loop' for this:
d = {'data': 100, 'data2': 200, 'data3': 500}
total = 0
for i in d.values():
total += i
total = 800
For the ones who are getting the error while requesting JSON data:
If your are requesting JSON data, the JSON might be too large and that what cause the error to happen.
My solution is to copy the request link to new tab (get
request from browser)
copy the data to JSON viewer online where you have auto parsing and work on it there.
Because Neils answer helped me so much here is a Python translation with no dependencies:
import os
import logging
import subprocess
def check_for_updates(directory:str) -> None:
"""Check git repo state in respect to remote"""
git_cmd = lambda cmd: subprocess.run(
["git"] + cmd,
cwd=directory,
stdout=subprocess.PIPE,
check=True,
universal_newlines=True).stdout.rstrip("\n")
origin = git_cmd(["config", "--get", "remote.origin.url"])
logging.debug("Git repo origin: %r", origin)
for line in git_cmd(["fetch"]):
logging.debug(line)
local_sha = git_cmd(["rev-parse", "@"])
remote_sha = git_cmd(["rev-parse", "@{u}"])
base_sha = git_cmd(["merge-base", "@", "@{u}"])
if local_sha == remote_sha:
logging.info("Repo is up to date")
elif local_sha == base_sha:
logging.info("You need to pull")
elif remote_sha == base_sha:
logging.info("You need to push")
else:
logging.info("Diverged")
check_for_updates(os.path.dirname(__file__))
hth
Launch adb shell and enter the command as follows
am start -n yourpackagename/.activityname
Try this.
string path = @"E:\AppServ\Example.txt";
if (!File.Exists(path))
{
using (var txtFile = File.AppendText(path))
{
txtFile.WriteLine("The very first line!");
}
}
else if (File.Exists(path))
{
using (var txtFile = File.AppendText(path))
{
txtFile.WriteLine("The next line!");
}
}
Here's a bash function that makes it easy to view the logs on a remote. It takes two optional arguments. The first one is the branch, it defaults to master. The second one is the remote, it defaults to staging.
git_log_remote() {
branch=${1:-master}
remote=${2:-staging}
git fetch $remote
git checkout $remote/$branch
git log
git checkout -
}
examples:
$ git_log_remote
$ git_log_remote development origin
I thing you should try this in EXCEL: =norminv(rand();0;1)
. This will product the random numbers which should be normally distributed with the zero mean and unite variance. "0" can be supplied with any value, so that the numbers will be of desired mean, and by changing "1", you will get the variance equal to the square of your input.
For example: =norminv(rand();50;3)
will yield to the normally distributed numbers with MEAN = 50 VARIANCE = 9.
I think the following class code will help you. It supports multithreading but you can do some improvement like remove sync block and and sync to getRandomId() method.
public class RandomNumberGenerator {
private static final Set<String> generatedNumbers = new HashSet<String>();
public RandomNumberGenerator() {
}
public static void main(String[] args) {
final int maxLength = 7;
final int maxTry = 10;
for (int i = 0; i < 10; i++) {
System.out.println(i + ". studentId=" + RandomNumberGenerator.getRandomId(maxLength, maxTry));
}
}
public static String getRandomId(final int maxLength, final int maxTry) {
final Random random = new Random(System.nanoTime());
final int max = (int) Math.pow(10, maxLength);
final int maxMin = (int) Math.pow(10, maxLength-1);
int i = 0;
boolean unique = false;
int randomId = -1;
while (i < maxTry) {
randomId = random.nextInt(max - maxMin - 1) + maxMin;
synchronized (generatedNumbers) {
if (generatedNumbers.contains(randomId) == false) {
unique = true;
break;
}
}
i++;
}
if (unique == false) {
throw new RuntimeException("Cannot generate unique id!");
}
synchronized (generatedNumbers) {
generatedNumbers.add(String.valueOf(randomId));
}
return String.valueOf(randomId);
}
}
You can find those maven properties in the super pom.
You find the jar here:
${M2_HOME}/lib/maven-model-builder-3.0.3.jar
Open the jar with 7-zip or some other archiver (or use the jar tool).
Navigate to
org/apache/maven/model
There you'll find the pom-4.0.0.xml
.
It contains all those "short cuts":
<project>
...
<build>
<directory>${project.basedir}/target</directory>
<outputDirectory>${project.build.directory}/classes</outputDirectory>
<finalName>${project.artifactId}-${project.version}</finalName>
<testOutputDirectory>${project.build.directory}/test-classes</testOutputDirectory>
<sourceDirectory>${project.basedir}/src/main/java</sourceDirectory>
<scriptSourceDirectory>src/main/scripts</scriptSourceDirectory>
<testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory>
<resources>
<resource>
<directory>${project.basedir}/src/main/resources</directory>
</resource>
</resources>
<testResources>
<testResource>
<directory>${project.basedir}/src/test/resources</directory>
</testResource>
</testResources>
...
</build>
...
</project>
After some lobbying I am adding a link to the pom-4.0.0.xml
. This allows you to see the properties without opening up the local jar file.
By turning them into integers instead:
percent = (int(pyc) / int(tpy)) * 100;
In python 3, the input()
function returns a string. Always. This is a change from Python 2; the raw_input()
function was renamed to input()
.
The portable way to do this is:
sed -e 's/[ \t][ \t]*/\
/g'
That's an actual newline between the backslash and the slash-g. Many sed implementations don't know about \n
, so you need a literal newline. The backslash before the newline prevents sed from getting upset about the newline. (in sed scripts the commands are normally terminated by newlines)
With GNU sed you can use \n
in the substitution, and \s in the regex:
sed -e 's/\s\s*/\n/g'
GNU sed also supports "extended" regular expressions (that's egrep style, not perl-style) if you give it the -r flag, so then you can use +
:
sed -r -e 's/\s+/\n/g'
If this is for Linux only, you can probably go with the GNU command, but if you want this to work on systems with a non-GNU sed (eg: BSD, Mac OS-X), you might want to go with the more portable option.
I know this topic is old, but it ranks very well in Google. I found out that putting this in your header works well;
<meta Http-Equiv="Cache-Control" Content="no-cache">
<meta Http-Equiv="Pragma" Content="no-cache">
<meta Http-Equiv="Expires" Content="0">
<meta Http-Equiv="Pragma-directive: no-cache">
<meta Http-Equiv="Cache-directive: no-cache">
This would require me to reformat the data into lists inside lists, which seems to defeat the purpose of using pandas in the first place.
No it doesn't, just convert to a NumPy array:
>>> data = np.asarray(df)
This takes constant time because it just creates a view on your data. Then feed it to scikit-learn:
>>> from sklearn.linear_model import LinearRegression
>>> lr = LinearRegression()
>>> X, y = data[:, 1:], data[:, 0]
>>> lr.fit(X, y)
LinearRegression(copy_X=True, fit_intercept=True, normalize=False)
>>> lr.coef_
array([ 4.01182386e-01, 3.51587361e-04])
>>> lr.intercept_
14.952479503953672
The application is a server which simply runs until the system shuts down or it receives a Ctrl+C or the console window is closed.
Due to the extraordinary nature of the application, it is not feasible to "gracefully" exit. (It may be that I could code another application which would send a "server shutdown" message but that would be overkill for one application and still insufficient for certain circumstances like when the server (Actual OS) is actually shutting down.)
Because of these circumstances I added a "ConsoleCtrlHandler" where I stop my threads and clean up my COM objects etc...
Public Declare Auto Function SetConsoleCtrlHandler Lib "kernel32.dll" (ByVal Handler As HandlerRoutine, ByVal Add As Boolean) As Boolean
Public Delegate Function HandlerRoutine(ByVal CtrlType As CtrlTypes) As Boolean
Public Enum CtrlTypes
CTRL_C_EVENT = 0
CTRL_BREAK_EVENT
CTRL_CLOSE_EVENT
CTRL_LOGOFF_EVENT = 5
CTRL_SHUTDOWN_EVENT
End Enum
Public Function ControlHandler(ByVal ctrlType As CtrlTypes) As Boolean
.
.clean up code here
.
End Function
Public Sub Main()
.
.
.
SetConsoleCtrlHandler(New HandlerRoutine(AddressOf ControlHandler), True)
.
.
End Sub
This setup seems to work out perfectly. Here is a link to some C# code for the same thing.
Approach i used some years ago -
We need a jsp file , a servlet java file and a filter java file.
Give access of jsp file to user. User type url of jsp file .
Case 1 -
Using Printwriter , it will render the response to user .
Meanwhile, Servlet will create a key file .
When servlet try to execute the xxxx.js file within it , Filter
will activate and will detect key file exist and hence delete key
file .
Thus one cycle is over.
In short ,key file will created by server and will be immediatly deleted by filter .
This will happen upon every hit .
Case 2 -
Instead of File creation , one may use setting value in session variable .
Just resetting the sequence and updating all rows may cause duplicate id errors. In many cases you have to update all rows twice. First with higher ids to avoid the duplicates, then with the ids you actually want.
Please avoid to add a fixed amount to all ids (as recommended in other comments). What happens if you have more rows than this fixed amount? Assuming the next value of the sequence is higher than all the ids of the existing rows (you just want to fill the gaps), i would do it like:
UPDATE table SET id = DEFAULT;
ALTER SEQUENCE seq RESTART;
UPDATE table SET id = DEFAULT;
Try this:
div {
border: 1px solid black;
width: 70px;
overflow: hidden;
white-space: nowrap;
}
For applications such as Squirrel SQL Client (http://squirrel-sql.sourceforge.net/) version 4 you can set "serverTimezone" under "driver properties" to GMT+1
(example of timezone "Europe/Vienna).
I did it like this
echo "NEO4J_ULIMIT_NOFILE=50000" >> neo4j
mv neo4j /etc/default/
Here's your problem:
if(imgArray[i] == img)
You're comparing an array element to a DOM object.
Since this only came up hidden in comments, difficult to find as a solution:
You can use java -Dhttps.protocols=TLSv1,TLSv1.1
, but you need to use also useSystemProperties()
client = HttpClientBuilder.create().useSystemProperties();
We use this setup in our system now as this enables us to set this only for some usage of the code.
In our case we still have some Java 7 running and one API end point disallowed TLSv1,
so we use java -Dhttps.protocols=TLSv1,TLSv1.1,TLSv1.2
to enable current TLS versions.
Thanks @jebeaudet for pointing in this direction.
If you just want to move the location of your static files, then the simplest method is to declare the paths in the constructor. In the example below, I have moved my templates and static files into a sub-folder called web
.
app = Flask(__name__,
static_url_path='',
static_folder='web/static',
template_folder='web/templates')
static_url_path=''
removes any preceding path from the URL (i.e.
the default /static
).static_folder='web/static'
to serve any files found in the folder
web/static
as static files.template_folder='web/templates'
similarly, this changes the
templates folder.Using this method, the following URL will return a CSS file:
<link rel="stylesheet" type="text/css" href="/css/bootstrap.min.css">
And finally, here's a snap of the folder structure, where flask_server.py
is the Flask instance:
Try this out:
public static char[] myABCs = {'a', 'b', 'c'};
public static int numInput;
static Scanner in = new Scanner(System.in);
public static void main(String[] args) {
System.out.print("Enter Number of Times to repeat: ");
numInput = in.nextInt();
repeatArray(numInput);
}
public static int repeatArray(int y) {
for (int a = 0; a < y; a++) {
for (int b = 0; b < myABCs.length; b++) {
System.out.print(myABCs[b]);
}
System.out.print(" ");
}
return y;
}
You can also try this
function Person(obj) {
'use strict';
if (typeof obj === "undefined") {
this.name = "Bob";
this.age = 32;
this.company = "Facebook";
} else {
this.name = obj.name;
this.age = obj.age;
this.company = obj.company;
}
}
Person.prototype.print = function () {
'use strict';
console.log("Name: " + this.name + " Age : " + this.age + " Company : " + this.company);
};
var p1 = new Person({name: "Alex", age: 23, company: "Google"});
p1.print();
with open('file.txt', 'r') as searchfile:
for line in searchfile:
if 'searchphrase' in line:
print line
With apologies to senderle who I blatantly copied.
There is another simple sql like option. With Spark 1.6 below also should work.
df.filter("state = 'TX'")
This is a new way of specifying sql like filters. For a full list of supported operators, check out this class.
Back in the ole days of CGI we had many forms that would trigger various backend actions. Such as text notifications to groups, print jobs, farming of data, etc.
If the user was on a page that was saying "Please wait... Performing some HUGE job that could take some time.". They were more likely to hit REFRESH and this would be BAD!
WHY? Because it would trigger more slow jobs and eventually bog down the whole thing.
The solution? Allow them to do their form. When they submit their form... Start your job and then direct them to another page that tells them to wait.
Where the page in the middle actually held the form data that was needed to start the job. The WAIT page however contains a javascript history destroy. So they can RELOAD that wait page all they want and it will never trigger the original job to start in the background as that WAIT page only contains the form data needed for the WAIT itself.
Hope that makes sense.
The history destroy function also prevented them from clicking BACK and then refreshing as well.
It was very seamless and worked great for MANY MANY years until the non-profit was wound down.
Example: FORM ENTRY - Collect all their info and when submitted, this triggers your backend job.
RESPONSE from form entry - Returns HTML that performs a redirect to your static wait page and/or POST/GET to another form (the WAIT page).
WAIT PAGE - Only contains FORM data related to wait page as well as javascript to destroy the most recent history. Like (-1 OR -2) to only destroy the most recent pages, but still allows them to go back to their original FORM entry page.
Once they are at your WAIT page, they can click REFRESH as much as they want and it will never spawn the original FORM job on the backend. Instead, your WAIT page should embrace a META timed refresh itself so it can always check on the status of their job. When their job is completed, they are redirected away from the wait page to whereever you wish.
If they do manually REFRESH... They are simply adding one more check of their job status in there.
Hope that helps. Good luck.
Stored procedure that worked for me
create or replace
procedure reset_sequence( p_seq_name in varchar2, tablename in varchar2 )
is
l_val number;
maxvalueid number;
begin
execute immediate 'select ' || p_seq_name || '.nextval from dual' INTO l_val;
execute immediate 'select max(id) from ' || tablename INTO maxvalueid;
execute immediate 'alter sequence ' || p_seq_name || ' increment by -' || l_val || ' minvalue 0';
execute immediate 'select ' || p_seq_name || '.nextval from dual' INTO l_val;
execute immediate 'alter sequence ' || p_seq_name || ' increment by '|| maxvalueid ||' minvalue 0';
execute immediate 'select ' || p_seq_name || '.nextval from dual' INTO l_val;
execute immediate 'alter sequence ' || p_seq_name || ' increment by 1 minvalue 0';
end;
How to use the stored procedure:
execute reset_sequence('company_sequence','company');
See the above definition where it states that a callback function is passed off to some other function and at some point it is called.
In C++ it is desirable to have callback functions call a classes method. When you do this you have access to the member data. If you use the C way of defining a callback you will have to point it to a static member function. This is not very desirable.
Here is how you can use callbacks in C++. Assume 4 files. A pair of .CPP/.H files for each class. Class C1 is the class with a method we want to callback. C2 calls back to C1's method. In this example the callback function takes 1 parameter which I added for the readers sake. The example doesn't show any objects being instantiated and used. One use case for this implementation is when you have one class that reads and stores data into temporary space and another that post processes the data. With a callback function, for every row of data read the callback can then process it. This technique cuts outs the overhead of the temporary space required. It is particularly useful for SQL queries that return a large amount of data which then has to be post-processed.
/////////////////////////////////////////////////////////////////////
// C1 H file
class C1
{
public:
C1() {};
~C1() {};
void CALLBACK F1(int i);
};
/////////////////////////////////////////////////////////////////////
// C1 CPP file
void CALLBACK C1::F1(int i)
{
// Do stuff with C1, its methods and data, and even do stuff with the passed in parameter
}
/////////////////////////////////////////////////////////////////////
// C2 H File
class C1; // Forward declaration
class C2
{
typedef void (CALLBACK C1::* pfnCallBack)(int i);
public:
C2() {};
~C2() {};
void Fn(C1 * pThat,pfnCallBack pFn);
};
/////////////////////////////////////////////////////////////////////
// C2 CPP File
void C2::Fn(C1 * pThat,pfnCallBack pFn)
{
// Call a non-static method in C1
int i = 1;
(pThat->*pFn)(i);
}
You are getting undefined
because you probably have the components outside React Router.
Remember that you need to make sure that the component from which you are calling this.props.location
is inside a <Route />
component such as this:
<Route path="/dashboard" component={Dashboard} />
Then inside the Dashboard component, you have access to this.props.location
...
You can use the row_number()
function for this.
INSERT INTO PM_Ingrediants_Arrangements_Temp(AdminID, ArrangementID, IngrediantID, Sequence)
SELECT @AdminID, @ArrangementID, PM_Ingrediants.ID,
row_number() over (order by (select NULL))
FROM PM_Ingrediants
WHERE PM_Ingrediants.ID IN (SELECT ID FROM GetIDsTableFromIDsList(@IngrediantsIDs)
)
If you want to start with the maximum already in the table then do:
INSERT INTO PM_Ingrediants_Arrangements_Temp(AdminID, ArrangementID, IngrediantID, Sequence)
SELECT @AdminID, @ArrangementID, PM_Ingrediants.ID,
coalesce(const.maxs, 0) + row_number() over (order by (select NULL))
FROM PM_Ingrediants cross join
(select max(sequence) as maxs from PM_Ingrediants_Arrangement_Temp) const
WHERE PM_Ingrediants.ID IN (SELECT ID FROM GetIDsTableFromIDsList(@IngrediantsIDs)
)
Finally, you can just make the sequence
column an auto-incrementing identity column. This saves the need to increment it each time:
create table PM_Ingrediants_Arrangement_Temp ( . . .
sequence int identity(1, 1) -- and might consider making this a primary key too
. . .
)
I know this is old, but was hunting for the same thing and ended up coming up with another solution which is fairly concise andsimple. Here's my way of finding the next or previous element, taking into account traversal over elements that aren't of the type we're looking for:
var ClosestPrev = $( StartObject ).prevAll( '.selectorClass' ).first();
var ClosestNext = $( StartObject ).nextAll( '.selectorClass' ).first();
I'm not 100% sure of the order that the collection from the nextAll/prevAll functions return, but in my test case, it appears that the array is in the direction expected. Might be helpful if someone could clarify the internals of jquery for that for a strong guarantee of reliability.
Create a function in a package and return a SYS_REFCURSOR:
FUNCTION Function1 return SYS_REFCURSOR IS
l_cursor SYS_REFCURSOR;
BEGIN
open l_cursor for SELECT foo,bar FROM foobar;
return l_cursor;
END Function1;
It is possible of course, use -l:
instead of -l
. For example -l:libXYZ.a
to link with libXYZ.a
. Notice the lib
written out, as opposed to -lXYZ
which would auto expand to libXYZ
.
On Linux, you can use ldconfig
, which maintains the ld.so configuration and cache, to print out the directories search by ld.so
with
ldconfig -v 2>/dev/null | grep -v ^$'\t'
ldconfig -v
prints out the directories search by the linker (without a leading tab) and the shared libraries found in those directories (with a leading tab); the grep
gets the directories. On my machine, this line prints out
/usr/lib64/atlas:
/usr/lib/llvm:
/usr/lib64/llvm:
/usr/lib64/mysql:
/usr/lib64/nvidia:
/usr/lib64/tracker-0.12:
/usr/lib/wine:
/usr/lib64/wine:
/usr/lib64/xulrunner-2:
/lib:
/lib64:
/usr/lib:
/usr/lib64:
/usr/lib64/nvidia/tls: (hwcap: 0x8000000000000000)
/lib/i686: (hwcap: 0x0008000000000000)
/lib64/tls: (hwcap: 0x8000000000000000)
/usr/lib/sse2: (hwcap: 0x0000000004000000)
/usr/lib64/tls: (hwcap: 0x8000000000000000)
/usr/lib64/sse2: (hwcap: 0x0000000004000000)
The first paths, without hwcap
in the line, are either built-in or read from /etc/ld.so.conf.
The linker can then search additional directories under the basic library search path, with names like sse2
corresponding to additional CPU capabilities.
These paths, with hwcap
in the line, can contain additional libraries tailored for these CPU capabilities.
One final note: using -p
instead of -v
above searches the ld.so
cache instead.
In windows 7, I Got it resolved after adding the environment variables in system level.
If you do not have enough permission try to set the %JAVA_HOME%
and the %M2_HOME%
in System variables instead of User Variables.
As mentioned above, you could also write a makeEnum()
helper function:
function makeEnum(arr){
let obj = {};
for (let val of arr){
obj[val] = Symbol(val);
}
return Object.freeze(obj);
}
Use it like this:
const Colors = makeEnum(["red","green","blue"]);
let startColor = Colors.red;
console.log(startColor); // Symbol(red)
if(startColor == Colors.red){
console.log("Do red things");
}else{
console.log("Do non-red things");
}
A div is a block element and by default 100% wide. You should just have to set the textarea width to 100%.
On npm version 3.7.3
npm set registry=http://whatever/
I believe this answer from UIFuel
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Drop Shadow Stack -->
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#00CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#10CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#20CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#30CCCCCC" />
</shape>
</item>
<item>
<shape>
<padding android:top="1dp" android:right="1dp" android:bottom="1dp" android:left="1dp" />
<solid android:color="#50CCCCCC" />
</shape>
</item>
<!-- Background -->
<item>
<shape>
<solid android:color="@color/white" />
<corners android:radius="3dp" />
</shape>
</item>
</layer-list>
Have a look at the git clean
command.
git-clean - Remove untracked files from the working tree
Cleans the working tree by recursively removing files that are not under version control, starting from the current directory.
Normally, only files unknown to git are removed, but if the -x option is specified, ignored files are also removed. This can, for example, be useful to remove all build products.
It makes no sense to return values from a callback. Instead, do the "foo()" work you want to do inside your callback.
Asynchronous callbacks are invoked by the browser or by some framework like the Google geocoding library when events happen. There's no place for returned values to go. A callback function can return a value, in other words, but the code that calls the function won't pay attention to the return value.
Use copy()
instead, which is willing to overwrite destination files. If you then want the first tree to go away, just rmtree()
it separately once you are done iterating over it.
http://docs.python.org/library/shutil.html#shutil.copy
http://docs.python.org/library/shutil.html#shutil.rmtree
Update:
Do an os.walk()
over the source tree. For each directory, check if it exists on the destination side, and os.makedirs()
it if it is missing. For each file, simply shutil.copy()
and the file will be created or overwritten, whichever is appropriate.
You would use the command Mechanical snail listed. Notice the uppercase O. Full command line to use could be:
wget www.examplesite.com/textfile.txt --output-document=newfile.txt
or
wget www.examplesite.com/textfile.txt -O newfile.txt
Hope that helps.
Try this:
your_command 2>stderr.log 1>stdout.log
The numerals 0
through 9
are file descriptors in bash.
0
stands for standard input, 1
stands for standard output, 2
stands for standard error. 3
through 9
are spare for any other temporary usage.
Any file descriptor can be redirected to a file or to another file descriptor using the operator >
. You can instead use the operator >>
to appends to a file instead of creating an empty one.
Usage:
file_descriptor > filename
file_descriptor > &file_descriptor
Please refer to Advanced Bash-Scripting Guide: Chapter 20. I/O Redirection.
If you're on Oracle 11g, you may also want to check out dbms_index_utl.
If you want to do it (what I think you are trying right now) then replace this line
<input type="submit" <a href="#" onclick="history.back();">"Back"</a>
with this
<button type="button" onclick="history.back();">Back</button>
If you don't want to rely on JavaScript then you could get the HTTP_REFERER
variable an then provide it in a link like this:
<a href="<?php echo $_SERVER['HTTP_REFERER'] ?>">Back</a>
Octave and matlab have many similarities. But Octave is a command line interface. You have to type each command in the command prompt, while matlab comes with best GUI. I recommend first you use matlab student version; after learning basic lessons use gnu octave permentaly. Now gnu octave comes with gui, but it is a development version now. There are some gui front end for gnu octave, like guioctave, xoctave(not free), DomainMath IDE,etc.
I agree with @maverik above, I prefer not to hide the details with a typedef. Especially when you are trying to understand what is going on. I also prefer to see everything instead of a partial code snippet. With that said, here is a malloc and free of a complex structure.
The code uses the ms visual studio leak detector so you can experiment with the potential leaks.
#include "stdafx.h"
#include <string.h>
#include "msc-lzw.h"
#define _CRTDBG_MAP_ALLOC
#include <stdlib.h>
#include <crtdbg.h>
// 32-bit version
int hash_fun(unsigned int key, int try_num, int max) {
return (key + try_num) % max; // the hash fun returns a number bounded by the number of slots.
}
// this hash table has
// key is int
// value is char buffer
struct key_value_pair {
int key; // use this field as the key
char *pValue; // use this field to store a variable length string
};
struct hash_table {
int max;
int number_of_elements;
struct key_value_pair **elements; // This is an array of pointers to mystruct objects
};
int hash_insert(struct key_value_pair *data, struct hash_table *hash_table) {
int try_num, hash;
int max_number_of_retries = hash_table->max;
if (hash_table->number_of_elements >= hash_table->max) {
return 0; // FULL
}
for (try_num = 0; try_num < max_number_of_retries; try_num++) {
hash = hash_fun(data->key, try_num, hash_table->max);
if (NULL == hash_table->elements[hash]) { // an unallocated slot
hash_table->elements[hash] = data;
hash_table->number_of_elements++;
return RC_OK;
}
}
return RC_ERROR;
}
// returns the corresponding key value pair struct
// If a value is not found, it returns null
//
// 32-bit version
struct key_value_pair *hash_retrieve(unsigned int key, struct hash_table *hash_table) {
unsigned int try_num, hash;
unsigned int max_number_of_retries = hash_table->max;
for (try_num = 0; try_num < max_number_of_retries; try_num++) {
hash = hash_fun(key, try_num, hash_table->max);
if (hash_table->elements[hash] == 0) {
return NULL; // Nothing found
}
if (hash_table->elements[hash]->key == key) {
return hash_table->elements[hash];
}
}
return NULL;
}
// Returns the number of keys in the dictionary
// The list of keys in the dictionary is returned as a parameter. It will need to be freed afterwards
int keys(struct hash_table *pHashTable, int **ppKeys) {
int num_keys = 0;
*ppKeys = (int *) malloc( pHashTable->number_of_elements * sizeof(int) );
for (int i = 0; i < pHashTable->max; i++) {
if (NULL != pHashTable->elements[i]) {
(*ppKeys)[num_keys] = pHashTable->elements[i]->key;
num_keys++;
}
}
return num_keys;
}
// The dictionary will need to be freed afterwards
int allocate_the_dictionary(struct hash_table *pHashTable) {
// Allocate the hash table slots
pHashTable->elements = (struct key_value_pair **) malloc(pHashTable->max * sizeof(struct key_value_pair)); // allocate max number of key_value_pair entries
for (int i = 0; i < pHashTable->max; i++) {
pHashTable->elements[i] = NULL;
}
// alloc all the slots
//struct key_value_pair *pa_slot;
//for (int i = 0; i < pHashTable->max; i++) {
// // all that he could see was babylon
// pa_slot = (struct key_value_pair *) malloc(sizeof(struct key_value_pair));
// if (NULL == pa_slot) {
// printf("alloc of slot failed\n");
// while (1);
// }
// pHashTable->elements[i] = pa_slot;
// pHashTable->elements[i]->key = 0;
//}
return RC_OK;
}
// This will make a dictionary entry where
// o key is an int
// o value is a character buffer
//
// The buffer in the key_value_pair will need to be freed afterwards
int make_dict_entry(int a_key, char * buffer, struct key_value_pair *pMyStruct) {
// determine the len of the buffer assuming it is a string
int len = strlen(buffer);
// alloc the buffer to hold the string
pMyStruct->pValue = (char *) malloc(len + 1); // add one for the null terminator byte
if (NULL == pMyStruct->pValue) {
printf("Failed to allocate the buffer for the dictionary string value.");
return RC_ERROR;
}
strcpy(pMyStruct->pValue, buffer);
pMyStruct->key = a_key;
return RC_OK;
}
// Assumes the hash table has already been allocated.
int add_key_val_pair_to_dict(struct hash_table *pHashTable, int key, char *pBuff) {
int rc;
struct key_value_pair *pKeyValuePair;
if (NULL == pHashTable) {
printf("Hash table is null.\n");
return RC_ERROR;
}
// Allocate the dictionary key value pair struct
pKeyValuePair = (struct key_value_pair *) malloc(sizeof(struct key_value_pair));
if (NULL == pKeyValuePair) {
printf("Failed to allocate key value pair struct.\n");
return RC_ERROR;
}
rc = make_dict_entry(key, pBuff, pKeyValuePair); // a_hash_table[1221] = "abba"
if (RC_ERROR == rc) {
printf("Failed to add buff to key value pair struct.\n");
return RC_ERROR;
}
rc = hash_insert(pKeyValuePair, pHashTable);
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
return RC_OK;
}
void dump_hash_table(struct hash_table *pHashTable) {
// Iterate the dictionary by keys
char * pValue;
struct key_value_pair *pMyStruct;
int *pKeyList;
int num_keys;
printf("i\tKey\tValue\n");
printf("-----------------------------\n");
num_keys = keys(pHashTable, &pKeyList);
for (int i = 0; i < num_keys; i++) {
pMyStruct = hash_retrieve(pKeyList[i], pHashTable);
pValue = pMyStruct->pValue;
printf("%d\t%d\t%s\n", i, pKeyList[i], pValue);
}
// Free the key list
free(pKeyList);
}
int main(int argc, char *argv[]) {
int rc;
int i;
struct hash_table a_hash_table;
a_hash_table.max = 20; // The dictionary can hold at most 20 entries.
a_hash_table.number_of_elements = 0; // The intial dictionary has 0 entries.
allocate_the_dictionary(&a_hash_table);
rc = add_key_val_pair_to_dict(&a_hash_table, 1221, "abba");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
rc = add_key_val_pair_to_dict(&a_hash_table, 2211, "bbaa");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
rc = add_key_val_pair_to_dict(&a_hash_table, 1122, "aabb");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
rc = add_key_val_pair_to_dict(&a_hash_table, 2112, "baab");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
rc = add_key_val_pair_to_dict(&a_hash_table, 1212, "abab");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
rc = add_key_val_pair_to_dict(&a_hash_table, 2121, "baba");
if (RC_ERROR == rc) {
printf("insert has failed!\n");
return RC_ERROR;
}
// Iterate the dictionary by keys
dump_hash_table(&a_hash_table);
// Free the individual slots
for (i = 0; i < a_hash_table.max; i++) {
// all that he could see was babylon
if (NULL != a_hash_table.elements[i]) {
free(a_hash_table.elements[i]->pValue); // free the buffer in the struct
free(a_hash_table.elements[i]); // free the key_value_pair entry
a_hash_table.elements[i] = NULL;
}
}
// Free the overall dictionary
free(a_hash_table.elements);
_CrtDumpMemoryLeaks();
return 0;
}
If you want to do it with multiline/multiple command/s then you can do this:
output=$( bash <<EOF
# Multiline/multiple command/s
EOF
)
Or:
output=$(
# Multiline/multiple command/s
)
Example:
#!/bin/bash
output="$( bash <<EOF
echo first
echo second
echo third
EOF
)"
echo "$output"
Output:
first
second
third
Using heredoc, you can simplify things pretty easily by breaking down your long single line code into a multiline one. Another example:
output="$( ssh -p $port $user@$domain <<EOF
# Breakdown your long ssh command into multiline here.
EOF
)"
For simplicity you could create an extension:-
public static SolidColorBrush ToSolidColorBrush(this string hex_code)
{
return (SolidColorBrush)new BrushConverter().ConvertFromString(hex_code);
}
And then to use:-
SolidColorBrush accentBlue = "#3CACDC".ToSolidColorBrush();