Yet another reason may be that your entity class has several properties named somhow /.*id/i
- so ending with ID case insensitive AND elementary type AND there is no [Key]
attribute.
EF will namely try to figure out the PK by itself by looking for elementary typed properties ending in ID.
See my case:
public class MyTest, IMustHaveTenant
{
public long Id { get; set; }
public int TenantId { get; set; }
[MaxLength(32)]
public virtual string Signum{ get; set; }
public virtual string ID { get; set; }
public virtual string ID_Other { get; set; }
}
don't ask - lecacy code. The Id
was even inherited, so I could not use [Key]
(just simplifying the code here)
But here EF is totally confused.
What helped was using modelbuilder this in DBContext class.
modelBuilder.Entity<MyTest>(f =>
{
f.HasKey(e => e.Id);
f.HasIndex(e => new { e.TenantId });
f.HasIndex(e => new { e.TenantId, e.ID_Other });
});
the index on PK is implicit.
If you use CMake you have to set WIN32 flag in add_executable
add_executable(${name} WIN32 ${source_files})
See CMake Doc for more information.
Value cannot be null. Parameter name: source
Above error comes in situation when you are querying the collection which is null.
For demonstration below code will result in such an exception.
Console.WriteLine("Hello World");
IEnumerable<int> list = null;
list.Where(d => d ==4).FirstOrDefault();
Here is the output of the above code.
Hello World Run-time exception (line 11): Value cannot be null. Parameter name: source
Stack Trace:
[System.ArgumentNullException: Value cannot be null. Parameter name: source] at Program.Main(): line 11
In your case ListMetadataKor
is null.
Here is the fiddle if you want to play around.
I hate to point out the obvious, but System.IO.FileNotFoundException means the program did not find the file you specified. So what you need to do is check what file your code is looking for in production.
To see what file your program is looking for in production (look at the FileName property of the exception), try these techniques:
Then look at the file system on the machine and see if the file exists. Most likely the case is that it doesn't exist.
Update your connection string as shown below (without port
variable as well):
MysqlConn.ConnectionString = "Server=127.0.0.1;Database=patholabs;Uid=pankaj;Pwd=master;"
Hope this helps...
You'd need to register DHTMLED.ocx
During debug, break on all exceptions thrown. Debug->Exceptions
Check all 'Thrown' exceptions. F5, the code will stop on the offending line.
This answer is likely wrong wrong the context. I thought VBA now run on the CLR these days, but it does not. In any case, this reply may be useful to someone. Or not.
If you run Office 2010 32-bit mode then it's the same as Office 2007. (The "issue" is Office running in 64-bit mode). It's the bitness of the execution context (VBA/CLR) which is important here and the bitness of the loaded VBA/CLR depends upon the bitness of the host process.
Between 32/64-bit calls, most notable things that go wrong are using long
or int
(constant-sized in CLR) instead of IntPtr
(dynamic sized based on bitness) for "pointer types".
The ShellExecute function has a signature of:
HINSTANCE ShellExecute(
__in_opt HWND hwnd,
__in_opt LPCTSTR lpOperation,
__in LPCTSTR lpFile,
__in_opt LPCTSTR lpParameters,
__in_opt LPCTSTR lpDirectory,
__in INT nShowCmd
);
In this case, it is important HWND is IntPtr
(this is because a HWND is a "HANDLE" which is void*
/"void pointer") and not long
. See pinvoke.net ShellExecute as an example. (While some "solutions" are shady on pinvoke.net, it's a good place to look initially).
Happy coding.
As far as any "new syntax", I have no idea.
It's much simpler to run the task on the thread pool, rather than trying to trick the scheduler to run it synchronously. That way you can be sure that it won't deadlock. Performance is affected because of the context switch.
Task<MyResult> DoSomethingAsync() { ... }
// Starts the asynchronous task on a thread-pool thread.
// Returns a proxy to the original task.
Task<MyResult> task = Task.Run(() => DoSomethingAsync());
// Will block until the task is completed...
MyResult result = task.Result;
You are almost there. (note change in the return value of FindWindow declaration). I'd recommend using RegisterWindowMessage in this case so you don't have to worry about the ins and outs of WM_USER.
[DllImport("user32.dll")]
public static extern IntPtr FindWindow(string lpClassName, String lpWindowName);
[DllImport("user32.dll")]
public static extern int SendMessage(IntPtr hWnd, int wMsg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll", SetLastError=true, CharSet=CharSet.Auto)]
static extern uint RegisterWindowMessage(string lpString);
public void button1_Click(object sender, EventArgs e)
{
// this would likely go in a constructor because you only need to call it
// once per process to get the id - multiple calls in the same instance
// of a windows session return the same value for a given string
uint id = RegisterWindowMessage("MyUniqueMessageIdentifier");
IntPtr WindowToFind = FindWindow(null, "Form1");
Debug.Assert(WindowToFind != IntPtr.Zero);
SendMessage(WindowToFind, id, IntPtr.Zero, IntPtr.Zero);
}
And then in your Form1 class:
class Form1 : Form
{
[DllImport("user32.dll", SetLastError=true, CharSet=CharSet.Auto)]
static extern uint RegisterWindowMessage(string lpString);
private uint _messageId = RegisterWindowMessage("MyUniqueMessageIdentifier");
protected override void WndProc(ref Message m)
{
if (m.Msg == _messageId)
{
// do stuff
}
base.WndProc(ref m);
}
}
Bear in mind I haven't compiled any of the above so some tweaking may be necessary.
Also bear in mind that other answers warning you away from SendMessage
are spot on. It's not the preferred way of inter module communication nowadays and genrally speaking overriding the WndProc
and using SendMessage/PostMessage
implies a good understanding of how the Win32 message infrastructure works.
But if you want/need to go this route I think the above will get you going in the right direction.
I had the same problem. For me, it was caused by the default settings in the local IIS server on my machine. So the easy way to fix it, was to use the built in Visual Studio development server instead :)
Newer IIS versions on x64 machines have a setting that doesn't allow 32 bit applications to run by default. To enable 32 bit applications in the local IIS, select the relevant application pool in IIS manager, click "Advanced settings", and change "Enable 32-Bit Applications" from False to True
It's a long pointer to a constant, wide string (i.e. a string of wide characters).
Since it's a wide string, you want to make your constant look like: L"TestWindow"
. I wouldn't create the intermediate a
either, I'd just pass L"TestWindow"
for the parameter:
ghTest = FindWindowEx(NULL, NULL, NULL, L"TestWindow");
If you want to be pedantically correct, an "LPCTSTR" is a "text" string -- a wide string in a Unicode build and a narrow string in an ANSI build, so you should use the appropriate macro:
ghTest = FindWindow(NULL, NULL, NULL, _T("TestWindow"));
Few people care about producing code that can compile for both Unicode and ANSI character sets though, and if you don't getting it to really work correctly can be quite a bit of extra work for little gain. In this particular case, there's not much extra work, but if you're manipulating strings, there's a whole set of string manipulation macros that resolve to the correct functions.
You can also try this
Private Declare Function GetWindowText Lib "user32.dll" (ByVal hwnd As IntPtr, ByVal lpString As StringBuilder, ByVal cch As Integer) As Integer
I always use Declare Function instead of DllImport... Its more simply, its shorter and does the same
I got this error when I modified an Nlog configuration file and didn't format the XML correctly.
I had the same problem after upgrading from .NET 4.5 to .NET 4.5.1. What fixed it for me was running this command:
netsh winsock reset
What you want to do is use Page.RegisterStartupScript(key, script) :
See here for more details: http://msdn.microsoft.com/en-us/library/aa478975.aspx
What you basically do is build your javascript string, pass it to that method and give it a unique id( in case you try to register it twice on a page.)
EDIT: This is what you call trigger happy. Feel free to down it. :)
Another place you could stop the timer is the FormClosing event - this happens before the form is actually closed, so is a good place to stop things before they might access unavailable resources.
You can wrap your TextInput
in View
.
<View>_x000D_
<TextInput/>_x000D_
<Icon/>_x000D_
<View>
_x000D_
and dynamically calculate width, if you want add an icon,
iconWidth = 0.05*viewWidth
textInputWidth = 0.95*viewWidth
otherwise textInputwWidth = viewWidth
.
View
and TextInput
background color are both white. (Small hack)
egrep -ir --include=*.{php,html,js} "(document.cookie|setcookie)" .
The r
flag means to search recursively (search subdirectories). The i
flag means case insensitive.
If you just want file names add the l
(lowercase L
) flag:
egrep -lir --include=*.{php,html,js} "(document.cookie|setcookie)" .
I believe there is a maximum number of concurrent http requests that browsers will make to the same domain, which is in the order of 4-8 requests depending on the user's settings and browser.
You could set up your requests to go to different domains, which may or may not be feasible. The Yahoo guys did a lot of research in this area, which you can read about (here). Remember that every new domain you add also requires a DNS lookup. The YSlow guys recommend between 2 and 4 domains to achieve a good compromise between parallel requests and DNS lookups, although this is focusing on the page's loading time, not subsequent AJAX requests.
Can I ask why you want to make so many requests? There is good reasons for the browsers limiting the number of requests to the same domain. You will be better off bundling requests if possible.
While the other answers are mostly fine, you could try another, more space-efficient, encoding method like yEnc. (yEnc wikipedia link) With yEnc also get checksum capability right "out of the box". Read and links below. Of course, because XML does not have a native yEnc type your XML schema should be updated to properly describe the encoded node.
Why: Due to the encoding strategies base64/63, uuencode et al. encodings increase the amount of data (overhead) you need to store and transfer by roughly 40% (vs. yEnc's 1-2%). Depending on what you're encoding, 40% overhead could be/become an issue.
yEnc - Wikipedia abstract: https://en.wikipedia.org/wiki/YEnc yEnc is a binary-to-text encoding scheme for transferring binary files in messages on Usenet or via e-mail. ... An additional advantage of yEnc over previous encoding methods, such as uuencode and Base64, is the inclusion of a CRC checksum to verify that the decoded file has been delivered intact. ?
This worked for me:
export _JAVA_OPTIONS="-Xmx1g"
It's important that you have no spaces because for me it did not work. I would suggest just copying and pasting. Then I ran:
java -XshowSettings:vm
and it will tell you:
Picked up _JAVA_OPTIONS: -Xmx1g
open http://localhost:8080/ in browser, if you get tomcat home page. it means tomcat is running
I was looking for a really simple way to get PHP to send a socket.io message to clients.
This doesn't require any additional PHP libraries - it just uses sockets.
Instead of trying to connect to the websocket interface like so many other solutions, just connect to the node.js server and use .on('data')
to receive the message.
Then, socket.io
can forward it along to clients.
Detect a connection from your PHP server in Node.js like this:
//You might have something like this - just included to show object setup
var app = express();
var server = http.createServer(app);
var io = require('socket.io').listen(server);
server.on("connection", function(s) {
//If connection is from our server (localhost)
if(s.remoteAddress == "::ffff:127.0.0.1") {
s.on('data', function(buf) {
var js = JSON.parse(buf);
io.emit(js.msg,js.data); //Send the msg to socket.io clients
});
}
});
Here's the incredibly simple php code - I wrapped it in a function - you may come up with something better.
Note that 8080
is the port to my Node.js server - you may want to change.
function sio_message($message, $data) {
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
$result = socket_connect($socket, '127.0.0.1', 8080);
if(!$result) {
die('cannot connect '.socket_strerror(socket_last_error()).PHP_EOL);
}
$bytes = socket_write($socket, json_encode(Array("msg" => $message, "data" => $data)));
socket_close($socket);
}
You can use it like this:
sio_message("chat message","Hello from PHP!");
You can also send arrays which are converted to json and passed along to clients.
sio_message("DataUpdate",Array("Data1" => "something", "Data2" => "something else"));
This is a useful way to "trust" that your clients are getting legitimate messages from the server.
You can also have PHP pass along database updates without having hundreds of clients query the database.
I wish I'd found this sooner - hope this helps!
The XML is invalid.
<![CDATA[
{INVALID XML}
]]>
CDATA should be wrapped around all special XML characters, as per W3C
<span class="txt">Some Text</span>
.txt:hover {
text-decoration: underline;
}
Here is the simple explanation of Redux over Flux. Redux does not have a dispatcher.It relies on pure functions called reducers. It does not need a dispatcher. Each actions are handled by one or more reducers to update the single store. Since data is immutable, reducers returns a new updated state that updates the store
For more information Flux vs Redux
Remove the semi-colon after no-repeat
, in the url and try it .
$("#globalsearchstr").focus(function(){
$(this).parent().css("background", "url(/images/r-srchbg_white.png) no-repeat");
});
h1 {_x000D_
color: black;_x000D_
-webkit-text-fill-color: white; /* Will override color (regardless of order) */_x000D_
-webkit-text-stroke-width: 1px;_x000D_
-webkit-text-stroke-color: black;_x000D_
}
_x000D_
<h1>Properly stroked!</h1>
_x000D_
The better option is create a new table copy the rows to the destination table, drop the actual table and rename the newly created table . This method is good for small tables,
let string = " Test Trimmed String "
For Removing white Space and New line use below code :-
let str_trimmed = yourString.trimmingCharacters(in: .whitespacesAndNewlines)
For Removing only Spaces from string use below code :-
let str_trimmed = yourString.trimmingCharacters(in: .whitespaces)
Create a css and set the value style="width:50px;"
in css code. Call the class of CSS in the drop down list. Then it will work.
This should help -
var json = "{'@STARTDATE': '2016-02-17 00:00:00.000', '@ENDDATE': '2016-02-18 23:59:00.000' }";
var fdate = JObject.Parse(json)["@STARTDATE"];
Also try to dos2unix
the shell script, because sometimes it has Windows line endings and the shell does not recognize it.
$ dos2unix MigrateNshell.sh
This helps sometimes.
pandas.Series.astype
You can do something like this :
weather["Temp"] = weather.Temp.astype(float)
You can also use pd.to_numeric
that will convert the column from object to float
Example :
s = pd.Series(['apple', '1.0', '2', -3])
print(pd.to_numeric(s, errors='ignore'))
print("=========================")
print(pd.to_numeric(s, errors='coerce'))
Output:
0 apple
1 1.0
2 2
3 -3
=========================
dtype: object
0 NaN
1 1.0
2 2.0
3 -3.0
dtype: float64
In your case you can do something like this:
weather["Temp"] = pd.to_numeric(weather.Temp, errors='coerce')
convert_objects
Example is as follows
>> pd.Series([1,2,3,4,'.']).convert_objects(convert_numeric=True)
0 1
1 2
2 3
3 4
4 NaN
dtype: float64
You can use this as follows:
weather["Temp"] = weather.Temp.convert_objects(convert_numeric=True)
NaN
... so be careful while using it.int is a binary representation of a whole number, double is a double-precision floating point number.
Here is the best solution if you want some extra flexibility and don't want to change your model field. Just add this custom validator:
#Imports
from django.core.exceptions import ValidationError
class validate_range_or_null(object):
compare = lambda self, a, b, c: a > c or a < b
clean = lambda self, x: x
message = ('Ensure this value is between %(limit_min)s and %(limit_max)s (it is %(show_value)s).')
code = 'limit_value'
def __init__(self, limit_min, limit_max):
self.limit_min = limit_min
self.limit_max = limit_max
def __call__(self, value):
cleaned = self.clean(value)
params = {'limit_min': self.limit_min, 'limit_max': self.limit_max, 'show_value': cleaned}
if value: # make it optional, remove it to make required, or make required on the model
if self.compare(cleaned, self.limit_min, self.limit_max):
raise ValidationError(self.message, code=self.code, params=params)
And it can be used as such:
class YourModel(models.Model):
....
no_dependents = models.PositiveSmallIntegerField("How many dependants?", blank=True, null=True, default=0, validators=[validate_range_or_null(1,100)])
The two parameters are max and min, and it allows nulls. You can customize the validator if you like by getting rid of the marked if statement or change your field to be blank=False, null=False in the model. That will of course require a migration.
Note: I had to add the validator because Django does not validate the range on PositiveSmallIntegerField, instead it creates a smallint (in postgres) for this field and you get a DB error if the numeric specified is out of range.
Hope this helps :) More on Validators in Django.
PS. I based my answer on BaseValidator in django.core.validators, but everything is different except for the code.
I got this error message while running tests in Visual Studio: Firefox simply wouldn't load and I got OP's error message.
I manually opened Firefox and found out that it needed to update itself (it did so before loading). Once finished I reran the test suite and Firefox showed up nicely, the tests were properly ran. If you get this error all of a sudden please try this answer before updating anything on your machine.
The possible values for page-break-after are: auto, always, avoid, left, right
I believe that you can’t use thie page-break-after property on absolutely positioned elements.
You may set the default file association of ps1
files to be powershell.exe
which will allow you to execute a powershell script by double clicking on it.
In Windows 10,
ps1
fileOpen with
Choose another app
More apps
Look for another app on this PC
. C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
. That will change the file association and ps1
files will execute by double-clicking them. You may change it back to its default behavior by setting notepad.exe
to the default app.
Just to document if someone has the same problem...
In my situation I've been using :uuid
fields, and the above answers does not work to my case, because rails 5 are creating a column using :bigint
instead :uuid
:
add_reference :uploads, :user, index: true, type: :uuid
Reference: Active Record Postgresql UUID
You should make x
and y
numpy arrays, not lists:
x = np.array([0.46,0.59,0.68,0.99,0.39,0.31,1.09,
0.77,0.72,0.49,0.55,0.62,0.58,0.88,0.78])
y = np.array([0.315,0.383,0.452,0.650,0.279,0.215,0.727,0.512,
0.478,0.335,0.365,0.424,0.390,0.585,0.511])
With this change, it produces the expect plot. If they are lists, m * x
will not produce the result you expect, but an empty list. Note that m
is anumpy.float64
scalar, not a standard Python float
.
I actually consider this a bit dubious behavior of Numpy. In normal Python, multiplying a list with an integer just repeats the list:
In [42]: 2 * [1, 2, 3]
Out[42]: [1, 2, 3, 1, 2, 3]
while multiplying a list with a float gives an error (as I think it should):
In [43]: 1.5 * [1, 2, 3]
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
<ipython-input-43-d710bb467cdd> in <module>()
----> 1 1.5 * [1, 2, 3]
TypeError: can't multiply sequence by non-int of type 'float'
The weird thing is that multiplying a Python list with a Numpy scalar apparently works:
In [45]: np.float64(0.5) * [1, 2, 3]
Out[45]: []
In [46]: np.float64(1.5) * [1, 2, 3]
Out[46]: [1, 2, 3]
In [47]: np.float64(2.5) * [1, 2, 3]
Out[47]: [1, 2, 3, 1, 2, 3]
So it seems that the float gets truncated to an int, after which you get the standard Python behavior of repeating the list, which is quite unexpected behavior. The best thing would have been to raise an error (so that you would have spotted the problem yourself instead of having to ask your question on Stackoverflow) or to just show the expected element-wise multiplication (in which your code would have just worked). Interestingly, addition between a list and a Numpy scalar does work:
In [69]: np.float64(0.123) + [1, 2, 3]
Out[69]: array([ 1.123, 2.123, 3.123])
Just drag and drop the DLL file into folder C:\Windows\assembly
using Windows Explorer.
Caveat:
In earlier versions of the .NET Framework, the Shfusion.dll Windows shell extension let you install assemblies by dragging them to File Explorer. Beginning with .NET Framework 4, Shfusion.dll is obsolete.
Source: How to: Install an assembly into the global assembly cache
I run the service at IPLocate.io, which you can hook into for free with one easy call:
<?php
$res = file_get_contents('https://www.iplocate.io/api/lookup/8.8.8.8');
$res = json_decode($res);
echo $res->country; // United States
echo $res->continent; // North America
echo $res->latitude; // 37.751
echo $res->longitude; // -97.822
var_dump($res);
The $res
object will contain your geolocation fields like country
, city
, etc.
Check out the docs for more information.
You can do this with JSONP like this:
function insertReply(content) {
document.getElementById('output').innerHTML = content;
}
// create script element
var script = document.createElement('script');
// assing src with callback name
script.src = 'http://url.to.json?callback=insertReply';
// insert script to document and load content
document.body.appendChild(script);
But source must be aware that you want it to call function passed as callback parameter to it.
With google API it would look like this:
function insertReply(content) {
document.getElementById('output').innerHTML = content;
}
// create script element
var script = document.createElement('script');
// assing src with callback name
script.src = 'https://www.googleapis.com/freebase/v1/text/en/bob_dylan?callback=insertReply';
// insert script to document and load content
document.body.appendChild(script);
Check how data looks like when you pass callback to google api: https://www.googleapis.com/freebase/v1/text/en/bob_dylan?callback=insertReply
Here is quite good explanation of JSONP: http://en.wikipedia.org/wiki/JSONP
This is a bit old but I want to add a thing I think is relevant.
(I meant to comment on one or 2 threads above but it seems I need reputation 50 and I have only 21 at the time I'm writing this. :) )
Just want to say that there are times when it's much better to access the elements of a form by name rather than by id. I'm not talking about the form itself. The form, OK, you can give it an id and then access it by it. But if you have a radio button in a form, it's much easier to use it as a single object (getting and setting its value) and you can only do this by name, as far as I know.
Example:
<form id="mainForm" name="mainForm">
<input type="radio" name="R1" value="V1">choice 1<br/>
<input type="radio" name="R1" value="V2">choice 2<br/>
<input type="radio" name="R1" value="V3">choice 3
</form>
You can get/set the checked value of the radio button R1 as a whole by using
document.mainForm.R1.value
or
document.getElementById("mainForm").R1.value
So if you want to have a unitary style, you might want to always use this method, regardless of the type of form element. Me, I'm perfectly comfortable accessing radio buttons by name and text boxes by id.
The ability to search commits has recently been added to GitHub.
To search for a hash, just enter at least the first 7 characters in the search box. Then on the results page, click the "Commits" tab to see matching commits (but only on the default branch, usually master
), or the "Issues" tab to see pull requests containing the commit.
To be more explicit you can add the hash:
prefix to the search, but it's not really necessary.
There is also a REST API (at the time of writing it is still in preview).
You can also look at the event.metaKey
attribute on the event if you are working with keydown events. Worked wonderfully for me! You can try it here.
IF the table is alias t
SELECT t.Present , t.previous, t.previous- t.Present AS Difference
FROM temp1 as t
Except for the first time, each time a word is seen the if statement's test fails. If you are counting a large number of words, many will probably occur multiple times. In a situation where the initialization of a value is only going to occur once and the augmentation of that value will occur many times it is cheaper to use a try statement:
urls_d = {}
for url in list_of_urls:
try:
urls_d[url] += 1
except KeyError:
urls_d[url] = 1
you can read more about this: https://wiki.python.org/moin/PythonSpeed/PerformanceTips
You need to use : "$@"
(WITH the quotes) or "${@}"
(same, but also telling the shell where the variable name starts and ends).
(and do NOT use : $@
, or "$*"
, or $*
).
ex:
#testscript1:
echo "TestScript1 Arguments:"
for an_arg in "$@" ; do
echo "${an_arg}"
done
echo "nb of args: $#"
./testscript2 "$@" #invokes testscript2 with the same arguments we received
I'm not sure I understood your other requirement ( you want to invoke './testscript2' in single quotes?) so here are 2 wild guesses (changing the last line above) :
'./testscript2' "$@" #only makes sense if "/path/to/testscript2" containes spaces?
./testscript2 '"some thing" "another"' "$var" "$var2" #3 args to testscript2
Please give me the exact thing you are trying to do
edit: after his comment saying he attempts tesscript1 "$1" "$2" "$3" "$4" "$5" "$6" to run : salt 'remote host' cmd.run './testscript2 $1 $2 $3 $4 $5 $6'
You have many levels of intermediate: testscript1 on host 1, needs to run "salt", and give it a string launching "testscrit2" with arguments in quotes...
You could maybe "simplify" by having:
#testscript1
#we receive args, we generate a custom script simulating 'testscript2 "$@"'
theargs="'$1'"
shift
for i in "$@" ; do
theargs="${theargs} '$i'"
done
salt 'remote host' cmd.run "./testscript2 ${theargs}"
if THAt doesn't work, then instead of running "testscript2 ${theargs}", replace THE LAST LINE above by
echo "./testscript2 ${theargs}" >/tmp/runtestscript2.$$ #generate custom script locally ($$ is current pid in bash/sh/...)
scp /tmp/runtestscript2.$$ user@remotehost:/tmp/runtestscript2.$$ #copy it to remotehost
salt 'remotehost' cmd.run "./runtestscript2.$$" #the args are inside the custom script!
ssh user@remotehost "rm /tmp/runtestscript2.$$" #delete the remote one
rm /tmp/runtestscript2.$$ #and the local one
just in case someone need it, in firefox for me it work like this
<iframe src="filename.pdf#zoom=FitH" style="position:absolute;right:0; top:0; bottom:0; width:100%;"></iframe>
i edit the html page with notepad ++ ,set encoding to utf-8 and its work
From WebService returns XML even when ResponseFormat set to JSON:
Make sure that the request is a POST request, not a GET. Scott Guthrie has a post explaining why.
Though it's written specifically for jQuery, this may also be useful to you:
Using jQuery to Consume ASP.NET JSON Web Services
Assuming you have installed Android studio properly,Open a command prompt and type
emulator -list-avds
which will display all the devices and then type emulator @avd_name
where avd_name is the the name of your emulator installed.
or just use $.trim(str)
Put all the 6 classes to 6 different projects. Then create jar files of all the 6 projects. In this manner you will get 6 executable jar files.
You are declaring a local variable, not a class variable. To set an instance variable (attribute), use
class Example(object):
def the_example(self):
self.itsProblem = "problem" # <-- remember the 'self.'
theExample = Example()
theExample.the_example()
print(theExample.itsProblem)
To set a class variable (a.k.a. static member), use
class Example(object):
def the_example(self):
Example.itsProblem = "problem"
# or, type(self).itsProblem = "problem"
# depending what you want to do when the class is derived.
The easiest way to do it is to link the CSV-file into the Access database as a table. Then you can work on this table as if it was an ordinary access table, for instance by creating an appropriate query based on this table that returns exactly what you want.
You can link the table either manually or with VBA like this
DoCmd.TransferText TransferType:=acLinkDelim, TableName:="tblImport", _
FileName:="C:\MyData.csv", HasFieldNames:=true
Dim db As DAO.Database
' Re-link the CSV Table
Set db = CurrentDb
On Error Resume Next: db.TableDefs.Delete "tblImport": On Error GoTo 0
db.TableDefs.Refresh
DoCmd.TransferText TransferType:=acLinkDelim, TableName:="tblImport", _
FileName:="C:\MyData.csv", HasFieldNames:=true
db.TableDefs.Refresh
' Perform the import
db.Execute "INSERT INTO someTable SELECT col1, col2, ... FROM tblImport " _
& "WHERE NOT F1 IN ('A1', 'A2', 'A3')"
db.Close: Set db = Nothing
Another way of implementing s1m0nw1's answer would be to access it through a variable. Not that its any more efficient but it saves you from having to type ().
val ClosedRange<Int>.random: Int
get() = Random().nextInt((endInclusive + 1) - start) + start
And now it can be accessed as such
(1..10).random
Take a try on the tiny free tool:
http://keyangxiang.com/csvtojson/
It utilises node.js csvtojson module
You have something like
class B
{
A * a;
}
B * b = new B;
b->a = new A;
If you then call delete b;
, nothing happens to a, and you have a memory leak. Trying to remember to delete b->a;
is not a good solution, but there are a couple of others.
B::~B() {delete a;}
This is a destructor for B that will delete a. (If a is 0, that delete does nothing. If a is not 0 but doesn't point to memory from new, you get heap corruption.)
auto_ptr<A> a;
...
b->a.reset(new A);
This way you don't have a as a pointer, but rather an auto_ptr<> (shared_ptr<> will do as well, or other smart pointers), and it is automatically deleted when b is.
Either of these ways works well, and I've used both.
small command-line web server on Node.js: miptleha-http
full source code (80 lines)
please check the following code, it can help
public class CountSpace {
public static void main(String[] args) {
String word = "S N PRASAD RAO";
String data[];int k=0;
data=word.split("");
for(int i=0;i<data.length;i++){
if(data[i].equals(" ")){
k++;
}
}
System.out.println(k);
}
}
Rename file extensions for all files under current directory and sub directories without any other packages (only use shell script):
Create a shell script rename.sh
under current directory with the following code:
#!/bin/bash
for file in $(find . -name "*$1"); do
mv "$file" "${file%$1}$2"
done
Run it by ./rename.sh .old .new
.
Eg. ./rename.sh .html .txt
// display git commit log
$ git log --pretty=oneline --abbrev-commit
// show last two commit and open in your default editor
// then delete second commit line and save it
$ git rebase -i HEAD~2
Nonatomic
will not generate threadsafe routines thru @synthesize
accessors. atomic
will generate threadsafe accessors so atomic
variables are threadsafe (can be accessed from multiple threads without botching of data)
copy
is required when the object is mutable. Use this if you need the value of the object as it is at this moment, and you don't want that value to reflect any changes made by other owners of the object. You will need to release the object when you are finished with it because you are retaining the copy.
Assign
is somewhat the opposite to copy
. When calling the getter of an assign
property, it returns a reference to the actual data. Typically you use this attribute when you have a property of primitive type (float, int, BOOL...)
retain
is required when the attribute is a pointer to a reference counted object that was allocated on the heap. Allocation should look something like:
NSObject* obj = [[NSObject alloc] init]; // ref counted var
The setter generated by @synthesize
will add a reference count to the object when it is copied so the underlying object is not autodestroyed if the original copy goes out of scope.
You will need to release the object when you are finished with it. @property
s using retain
will increase the reference count and occupy memory in the autorelease pool.
strong
is a replacement for the retain attribute, as part of Objective-C Automated Reference Counting (ARC). In non-ARC code it's just a synonym for retain.
This is a good website to learn about strong
and weak
for iOS 5.
http://www.raywenderlich.com/5677/beginning-arc-in-ios-5-part-1
Weak
weak
is similar to strong
except that it won't increase the reference count by 1. It does not become an owner of that object but just holds a reference to it. If the object's reference count drops to 0, even though you may still be pointing to it here, it will be deallocated from memory.
The above link contain both Good information regarding Weak and Strong.
Try to open it with pandas:
import pandas as pd
data = pd.read_html('filename.xls')
Or try any other html python parser.
That's not a proper excel file, but an html readable with excel.
Seems like you are looking for the Mode value (Statistical Mode) , have a look at Apache's Docs for Statistical functions.
Like Andrew said /exclude
parameter of xcopy should be existing file that has list of excludes.
Documentation of xcopy says:
Using /exclude
List each string in a separate line in each file. If any of the listed strings match any part of the absolute path of the file to be copied, that file is then excluded from the copying process. For example, if you specify the string "\Obj\", you exclude all files underneath the Obj directory. If you specify the string ".obj", you exclude all files with the .obj extension.
Example:
xcopy c:\t1 c:\t2 /EXCLUDE:list-of-excluded-files.txt
and list-of-excluded-files.txt
should exist in current folder (otherwise pass full path), with listing of files/folders to exclude - one file/folder per line. In your case that would be:
exclusion.txt
REST = Representational State Transfer
REST is a set of rules, that when followed, enable you to build a distributed application that has a specific set of desirable constraints.
REST is a protocol to exchange any(XML, JSON etc ) messages that can use HTTP to transport those messages.
Features:
It is stateless which means that ideally no connection should be maintained between the client and server. It is the responsibility of the client to pass its context to the server and then the server can store this context to process the client's further request. For example, session maintained by server is identified by session identifier passed by the client.
Advantages of Statelessness:
Disadvantages of Statelessness:
HTTP Methods supported by REST:
GET: /string/someotherstring It is idempotent and should ideally return the same results every time a call is made
PUT: Same like GET. Idempotent and is used to update resources.
POST: should contain a url and body Used for creating resources. Multiple calls should ideally return different results and should create multiple products.
DELETE: Used to delete resources on the server.
HEAD:
The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The meta information contained in the HTTP headers in response to a HEAD request SHOULD be identical to the information sent in response to a GET request.
OPTIONS:
This method allows the client to determine the options and/or requirements associated with a resource, or the capabilities of a server, without implying a resource action or initiating a resource retrieval.
HTTP Responses
Go here for all the responses.
Here are a few important ones:
200 - OK
3XX - Additional information needed from the client and url redirection
400 - Bad request
401 - Unauthorized to access
403 - Forbidden
The request was valid, but the server is refusing action. The user might not have the necessary permissions for a resource, or may need an account of some sort.
404 - Not Found
The requested resource could not be found but may be available in the future. Subsequent requests by the client are permissible.
405 - Method Not Allowed A request method is not supported for the requested resource; for example, a GET request on a form that requires data to be presented via POST, or a PUT request on a read-only resource.
404 - Request not found
500 - Internal Server Failure
502 - Bad Gateway Error
I don't accept the naysayers' answers.
If you find some special package that makes it work, then you can do it yourself! So, I don't buy those answers.
onClick
is a kludge that involves the end-user, hence not acceptable.
@umesh came close, but it was not a standalone program. Here is such (adapted from his Answer):
<script type="text/javascript">
function JSFunction() {
alert('In test Function'); // This demonstrates that the function was called
}
</script>
<?php
// Call a JS function "from" php
if (true) { // This if() is to point out that you might
// want to call JSFunction conditionally
// An echo like this is how you implant the 'call' in a way
// that it will be invoked in the client.
echo '<script type="text/javascript">
JSFunction();
</script>';
}
This is basically available in a 'protected' attribute of the Enum class:
list(Color._value2member_map_.keys())
To Remove an Item
$("select#mySelect option[value='option1']").remove();
To Add an item
$("#mySelect").append('<option value="option1">Option</option>');
To Check for an option
$('#yourSelect option[value=yourValue]').length > 0;
To remove a selected option
$('#mySelect :selected').remove();
You are printing the wrong value. Instead if the string you print the scanners object. Try this
Scanner input = new Scanner(System.in);
String s = input.next();
System.out.println(s);
It helped me to follow instructions in here:
https://packaging.python.org/guides/installing-using-linux-tools/
Debian/Ubuntu
Python 2:
sudo apt install python-pip
Python 3:
sudo apt install python3-venv python3-pip
Fetch the remote branch from the origin first.
git fetch origin remote_branch_name
Merge the remote branch to the local branch
git merge origin/remote_branch_name
In my case was Promise with no reject neither resolve, because my Promise function threw an exception. This mistake cause UnhandledPromiseRejectionWarning message.
If you need just a left margin, you can try this:
UItextField *textField = [[UITextField alloc] initWithFrame:...];
UIView *leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, textField.frame.size.height)];
leftView.backgroundColor = textField.backgroundColor;
textField.leftView = leftView;
textField.leftViewMode = UITextFieldViewModeAlways;
It works for me. I hope this may help.
I am taking the one from DShook and providing a dedupe example where you would keep only the record with the highest date.
In this example say I have 3 records all with the same app_id, and I only want to keep the one with the highest date:
DELETE t
FROM @USER_OUTBOX_APPS t
INNER JOIN
(
SELECT
app_id
,max(processed_date) as max_processed_date
FROM @USER_OUTBOX_APPS
GROUP BY app_id
HAVING count(*) > 1
) t2 on
t.app_id = t2.app_id
WHERE
t.processed_date < t2.max_processed_date
inspect.trace will let you get local variables after an exception has been thrown. You can then wrap the unit tests with a decorator like the following one to save off those local variables for examination during the post mortem.
import random
import unittest
import inspect
def store_result(f):
"""
Store the results of a test
On success, store the return value.
On failure, store the local variables where the exception was thrown.
"""
def wrapped(self):
if 'results' not in self.__dict__:
self.results = {}
# If a test throws an exception, store local variables in results:
try:
result = f(self)
except Exception as e:
self.results[f.__name__] = {'success':False, 'locals':inspect.trace()[-1][0].f_locals}
raise e
self.results[f.__name__] = {'success':True, 'result':result}
return result
return wrapped
def suite_results(suite):
"""
Get all the results from a test suite
"""
ans = {}
for test in suite:
if 'results' in test.__dict__:
ans.update(test.results)
return ans
# Example:
class TestSequenceFunctions(unittest.TestCase):
def setUp(self):
self.seq = range(10)
@store_result
def test_shuffle(self):
# make sure the shuffled sequence does not lose any elements
random.shuffle(self.seq)
self.seq.sort()
self.assertEqual(self.seq, range(10))
# should raise an exception for an immutable sequence
self.assertRaises(TypeError, random.shuffle, (1,2,3))
return {1:2}
@store_result
def test_choice(self):
element = random.choice(self.seq)
self.assertTrue(element in self.seq)
return {7:2}
@store_result
def test_sample(self):
x = 799
with self.assertRaises(ValueError):
random.sample(self.seq, 20)
for element in random.sample(self.seq, 5):
self.assertTrue(element in self.seq)
return {1:99999}
suite = unittest.TestLoader().loadTestsFromTestCase(TestSequenceFunctions)
unittest.TextTestRunner(verbosity=2).run(suite)
from pprint import pprint
pprint(suite_results(suite))
The last line will print the returned values where the test succeeded and the local variables, in this case x, when it fails:
{'test_choice': {'result': {7: 2}, 'success': True},
'test_sample': {'locals': {'self': <__main__.TestSequenceFunctions testMethod=test_sample>,
'x': 799},
'success': False},
'test_shuffle': {'result': {1: 2}, 'success': True}}
Har det gøy :-)
Here is the solution.
The HTML:
<table cellspacing="0" cellpadding="0">
<tr>
<td>
123
</td>
</tr>
</table>
The CSS:
table {
border-spacing:0;
border-collapse:collapse;
}
Hope this helps.
EDIT
td, th {padding:0}
Just like everyone else said, you can't control border height. But there are workarounds, here's what I do:
table {
position: relative;
}
table::before { /* ::after works too */
content: "";
position: absolute;
right: 0; /* Change direction for a different side*/
z-index: 100;
width: 3px; /* Thickness */
height: 10px;
background: #555; /* Color */
}
You can set height
to inherit
for the height of the table or calc(inherit - 2px)
for a 2px smaller border.
Remember, inherit
has no effect when the table height isn't set.
Use height: 50%
for half a border.
Case 1 : Yes, this works fine.
Case 2 : This will fail with the error ORA-01441 : cannot decrease column length because some value is too big.
Share and enjoy.
I fixed this by changing the ownership of /usr/local
and ~/Users/user-name
like so:
sudo chown -R my_name /usr/local
This allowed me to do everything without sudo
()
behind function names in bash unless you like to define them.[23]
in case to match 2
or 3
''
instead of ""
If enclosed in ""
, the interpreter (needlessly) tries to expand possible variables in the value before matching.
case "$C" in
'1')
do_this
;;
[23])
do_what_you_are_supposed_to_do
;;
*)
do_nothing
;;
esac
For case insensitive matching, you can use character classes (like [23]
):
case "$C" in
# will match C='Abra' and C='abra'
[Aa]'bra')
do_mysterious_things
;;
# will match all letter cases at any char like `abra`, `ABRA` or `AbRa`
[Aa][Bb][Rr][Aa])
do_wild_mysterious_things
;;
esac
But abra
didn't hit anytime because it will be matched by the first case.
If needed, you can omit ;;
in the first case to continue testing for matches in following cases too. (;;
jumps to esac
)
It's really simple. It's a new feature introduced in J2SE 5. Specifying angular brackets after the class name means you are creating a temporary data type which can hold any type of data.
Example:
class A<T>{
T obj;
void add(T obj){
this.obj=obj;
}
T get(){
return obj;
}
}
public class generics {
static<E> void print(E[] elements){
for(E element:elements){
System.out.println(element);
}
}
public static void main(String[] args) {
A<String> obj=new A<String>();
A<Integer> obj1=new A<Integer>();
obj.add("hello");
obj1.add(6);
System.out.println(obj.get());
System.out.println(obj1.get());
Integer[] arr={1,3,5,7};
print(arr);
}
}
Instead of <T>
, you can actually write anything and it will work the same way. Try writing <ABC>
in place of <T>
.
This is just for convenience:
<T>
is referred to as any type<E>
as element type<N>
as number type<V>
as value<K>
as keyBut you can name it anything you want, it doesn't really matter.
Moreover, Integer
, String
, Boolean
etc are wrapper classes of Java which help in checking of types during compilation. For example, in the above code, obj
is of type String
, so you can't add any other type to it (try obj.add(1)
, it will cast an error). Similarly, obj1
is of the Integer
type, you can't add any other type to it (try obj1.add("hello")
, error will be there).
Open IntelliJ Idea
, Go to
File > Other Settings > Default Settings... > Maven (Preferences) > Importing or|
Preferences > Maven > Importing
Click on Enable Auto-import in the console.
The approach is wrong, you need to apply the border-radius
to the container div
instead of the actual image.
This would work:
.image-cropper {
width: 100px;
height: 100px;
position: relative;
overflow: hidden;
border-radius: 50%;
}
img {
display: inline;
margin: 0 auto;
height: 100%;
width: auto;
}
_x000D_
<div class="image-cropper">
<img src="https://via.placeholder.com/150" class="rounded" />
</div>
_x000D_
You have a numpy array of strings, not floats. This is what is meant by dtype('<U9')
-- a little endian encoded unicode string with up to 9 characters.
try:
return sum(np.asarray(listOfEmb, dtype=float)) / float(len(listOfEmb))
However, you don't need numpy here at all. You can really just do:
return sum(float(embedding) for embedding in listOfEmb) / len(listOfEmb)
Or if you're really set on using numpy.
return np.asarray(listOfEmb, dtype=float).mean()
putting NOW() in quotes won't work as Active Records will put escape the NOW() into a string and tries to push it into the db as a string of "NOW()"... you will need to use
$this->db->set('time', 'NOW()', FALSE);
to set it correctly.
you can always check your sql afterward with
$this->db->last_query();
Using cookies is a easy way. You can use jquery and a pluging as jquery.cookie or create your own. Using Jquery + jquery.cookie, by example
<script>
var php_value = '<?php echo $php_variable; ?>';
var infobar_active = $.cookie('php_value');
var infobar_alert = any_process(infobar_active);
//set a cookie to readit via php
$.cookie('infobar_alerta', infobar_alerta );
</script>
<?php
var js_value = code to read a cookie
?>
I've found this usefull Server-Side and Hybrid Frameworks: http://www.phplivex.com/ http://www.ashleyit.com/rs/
I've been using Ashley's RSJS Script to update values in HTML without any problem for a long time until I met JQuery (ajax, load, etc.)
Until MySQL implements a bit datatype, if your processing is truly pressed for space and/or time, such as with high volume transactions, create a TINYINT field called bit_flags
for all your boolean variables, and mask and shift the boolean bit you desire in your SQL query.
For instance, if your left-most bit represents your bool field, and the 7 rightmost bits represent nothing, then your bit_flags
field will equal 128 (binary 10000000). Mask (hide) the seven rightmost bits (using the bitwise operator &
), and shift the 8th bit seven spaces to the right, ending up with 00000001. Now the entire number (which, in this case, is 1) is your value.
SELECT (t.bit_flags & 128) >> 7 AS myBool FROM myTable t;
if bit_flags = 128 ==> 1 (true)
if bit_flags = 0 ==> 0 (false)
You can run statements like these as you test
SELECT (128 & 128) >> 7;
SELECT (0 & 128) >> 7;
etc.
Since you have 8 bits, you have potentially 8 boolean variables from one byte. Some future programmer will invariably use the next seven bits, so you must mask. Don’t just shift, or you will create hell for yourself and others in the future. Make sure you have MySQL do your masking and shifting — this will be significantly faster than having the web-scripting language (PHP, ASP, etc.) do it. Also, make sure that you place a comment in the MySQL comment field for your bit_flags
field.
You’ll find these sites useful when implementing this method:
You can setup an interval to keep checking if the user has scrolled then do something accordingly.
Borrowing from the great John Resig in his article.
Example:
let didScroll = false;
window.onscroll = () => didScroll = true;
setInterval(() => {
if ( didScroll ) {
didScroll = false;
console.log('Someone scrolled me!')
}
}, 250);
You cannot use var
in a field, only on local variables.
But even this won't work:
Site master = Master as Site;
Because you cannot use this
in a field and Master as Site
is the same as this.Master as Site
. So just initialize the field from Page_Init
when the page is fully initialized and you can use this
:
Site master = null;
protected void Page_Init(object sender, EventArgs e)
{
master = this.Master as Site;
}
Reportlab. There is an open source version, and a paid version which adds the Report Markup Language (an alternative method of defining your document).
If you are talking about the length of the string, you can use len()
:
>>> s = 'please answer my question'
>>> len(s) # number of characters in s
25
If you need the size of the string in bytes, you need sys.getsizeof()
:
>>> import sys
>>> sys.getsizeof(s)
58
Also, don't call your string variable str
. It shadows the built-in str()
function.
Different tools may interpret the meaning of @Nullable
differently. For example, the Checker Framework and FindBugs handle @Nullable
differently.
Assuming you are trying to pass the command line arguments as well.
import sys
import myModule
def main():
# this will just pass all of the system arguments as is
myModule.main(*sys.argv)
# all the argv but the script name
myModule.main(*sys.argv[1:])
There is a free open source tool called Anchore that you can use to scan container images. This command will allow you to list all files in a container image
anchore-cli image content myrepo/app:latest files
If you are doing this through phpMyAdmin:
I'm assuming you already Created a new MySQL Database on Live Site (by live site I mean the company your hosting with (in my case Bluehost)).
Go to phpMyAdmin on live site - log in to the database you just created.
Now IMPORTANT! Before clicking the "import" option on the top bar, select your database on the left side of the page (grey bar, on the top has PHP Myadmin written, below it two options:information_schema and name of database you just logged into.
once you click the database you just created/logged into it will show you that database and then click the import option.
That did the trick for me. Really hope that helps
If the string is very large then copy will affect performance and two copies of the large string will use more memory.
You can do this:
$('.searchbychar').click(function () {
var divID = '#' + this.id;
$('html, body').animate({
scrollTop: $(divID).offset().top
}, 2000);
});
F.Y.I.
.
(dot) like in your first line of code.$( 'searchbychar' ).click(function() {
$('.searchbychar').attr('id')
will return a string ID not a jQuery object. Hence, you can not apply .offset()
method to it.If you want to remove all new line characters and replace them with some character (say comma) then you can use the following.
(Get-Content test.txt) -join ","
This works because Get-Content returns array of lines. You can see it as tokenize function available in many languages.
Collapse to definitions
CTRL + M, O
Expand all outlining
CTRL + M, X
Expand or collapse everything
CTRL + M, L
This also works with other languages like TypeScript and JavaScript
For Unicode support:
public class HexadecimalEncoding
{
public static string ToHexString(string str)
{
var sb = new StringBuilder();
var bytes = Encoding.Unicode.GetBytes(str);
foreach (var t in bytes)
{
sb.Append(t.ToString("X2"));
}
return sb.ToString(); // returns: "48656C6C6F20776F726C64" for "Hello world"
}
public static string FromHexString(string hexString)
{
var bytes = new byte[hexString.Length / 2];
for (var i = 0; i < bytes.Length; i++)
{
bytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
}
return Encoding.Unicode.GetString(bytes); // returns: "Hello world" for "48656C6C6F20776F726C64"
}
}
You can use the curses.h
library in linux as mentioned in the other answer.
You can install it in Ubuntu by:
sudo apt-get update
sudo apt-get install ncurses-dev
I took the installation part from here.
I had to control this in a script that ran on a machine with French locale, but a specific Java program had to run with en_US. As already pointed out, the following works:
java -Duser.language=en -Duser.country=US ...
Alternatively,
LC_ALL=en_US.UTF-8 java ...
I prefer the latter.
You can also DB tool Navicat, which does it more easier.
Right Click Your Database & select DB Properties & Change as you desired in Drop Down
Are you meaning?
data2 <- data1[good,]
With
data1[good]
you're selecting columns in a wrong way (using a logical vector of complete rows).
Consider that parameter pollutant
is not used; is it a column name that you want to extract? if so it should be something like
data2 <- data1[good, pollutant]
Furthermore consider that you have to rbind
the data.frame
s inside the for
loop, otherwise you get only the last data.frame (its completed.cases)
And last but not least, i'd prefer generating filenames eg with
id <- 1:322
paste0( directory, "/", gsub(" ", "0", sprintf("%3d",id)), ".csv")
A little modified chunk of ?sprintf
The string fmt
(in our case "%3d"
) contains normal characters, which are passed through to the output string, and also conversion specifications which operate on the arguments provided through ...
. The allowed conversion specifications start with a %
and end with one of the letters in the set aAdifeEgGosxX%
. These letters denote the following types:
d
: integerEg a more general example
sprintf("I am %10d years old", 25)
[1] "I am 25 years old"
^^^^^^^^^^
| |
1 10
if (var) {
// This is the most concise equivalent of Php's isset().
}
This warning comes because your dataframe x
is a copy of a slice. This is not easy to know why, but it has something to do with how you have come to the current state of it.
You can either create a proper dataframe
out of x by doing
x = x.copy()
This will remove the warning, but it is not the proper way
You should be using the DataFrame.loc
method, as the warning suggests, like this:
x.loc[:,'Mass32s'] = pandas.rolling_mean(x.Mass32, 5).shift(-2)
This regex matches embed, share and link URLs.
const youTubeIdFromLink = (url) => url.match(/(?:https?:\/\/)?(?:www\.)?youtu(?:be)?\.(?:com|be)(?:\/watch\/?\?v=|\/embed\/|\/)([^\s&]+)/)[1];
console.log(youTubeIdFromLink('https://youtu.be/YOUTUBE_ID')); //YOUTUBE_ID
console.log(youTubeIdFromLink('https://www.youtube.com/embed/YOUTUBE_ID')); //YOUTUBE_ID
console.log(youTubeIdFromLink('https://www.youtube.com/watch?v=YOUTUBE_ID')); //YOUTUBE_ID
I would prevent loops in general if i can, set approaches are much more efficient:
INSERT INTO tblFoo
SELECT TOP (300) n = ROW_NUMBER()OVER (ORDER BY [object_id])
FROM sys.all_objects ORDER BY n;
The standard function atoi()
will likely do what you want.
A simple example using "atoi":
#include <unistd.h>
int main(int argc, char *argv[])
{
int useconds = atoi(argv[1]);
usleep(useconds);
}
This will remove all listeners from children but will be slow for large pages. Brutally simple to write.
element.outerHTML = element.outerHTML;
To start an Activity
in java we wrote Intent(this, Page2.class)
, basically you have to define Context
in first parameter and destination class in second parameter. According to Intent
method in source code -
public Intent(Context packageContext, Class<?> cls)
As you can see we have to pass Class<?>
type in second parameter.
By writing Intent(this, Page2)
we never specify we are going to pass class, we are trying to pass class
type which is not acceptable.
Use ::class.java
which is alternative of .class
in kotlin. Use below code to start your Activity
Intent(this, Page2::class.java)
Example -
val intent = Intent(this, NextActivity::class.java)
// To pass any data to next activity
intent.putExtra("keyIdentifier", value)
// start your next activity
startActivity(intent)
I've had the same error and I solve it with: git merge -s recursive -X theirs origin/master
(this answer was added to provide shorter and more generic examples to the question - without including all the case-specific details in the original question).
There are two distinct "problems" here, the first is if a table or subquery has no rows, the second is if there are NULL values in the query.
For all versions I've tested, postgres and mysql will ignore all NULL values when averaging, and it will return NULL if there is nothing to average over. This generally makes sense, as NULL is to be considered "unknown". If you want to override this you can use coalesce (as suggested by Luc M).
$ create table foo (bar int);
CREATE TABLE
$ select avg(bar) from foo;
avg
-----
(1 row)
$ select coalesce(avg(bar), 0) from foo;
coalesce
----------
0
(1 row)
$ insert into foo values (3);
INSERT 0 1
$ insert into foo values (9);
INSERT 0 1
$ insert into foo values (NULL);
INSERT 0 1
$ select coalesce(avg(bar), 0) from foo;
coalesce
--------------------
6.0000000000000000
(1 row)
of course, "from foo" can be replaced by "from (... any complicated logic here ...) as foo"
Now, should the NULL row in the table be counted as 0? Then coalesce has to be used inside the avg call.
$ select coalesce(avg(coalesce(bar, 0)), 0) from foo;
coalesce
--------------------
4.0000000000000000
(1 row)
if (!obj) {
// object (not class!) doesn't exist yet
}
else ...
Use the following:
echo (text here) >> (name here).txt
Ex. echo my name is jeff >> test.txt
test.txt
my name is jeff
You can use it in a script too.
You wrote:
var divNode = document.createElement("div");
divNode.innerHTML = "<br><style>h1 { background: red; }</style>";
document.body.appendChild(divNode);
Why not this?
var styleNode = document.createElement("style");
document.head.appendChild(styleNode);
Henceforward you can append CSS rules easily to the HTML code:
styleNode.innerHTML = "h1 { background: red; }\n";
styleNode.innerHTML += "h2 { background: green; }\n";
...or directly to the DOM:
styleNode.sheet.insertRule("h1 { background: red; }");
styleNode.sheet.insertRule("h2 { background: green; }");
I expect this to work everywhere except archaic browsers.
Definitely works in Chrome in year 2019.
For me I had issues with history and location... As the accepted answer using window before history and location (i.e) window.history and window.location solved mine
>>> text=u'abcd'
>>> str(text)
'abcd'
If the string only contains ascii characters.
Try this code:
$('.entry_details').dialog({
width:800,
height:500,
draggable: true,
title: entry.short_description,
closeText: "Zamknij",
open: function(){
// blokowanie scrolla dla body
var body_scroll = $(window).scrollTop();
$(window).on('scroll', function(){
$(document).scrollTop(body_scroll);
});
},
close: function(){
$(window).off('scroll');
}
});
If you want install python libs and their dependencies offline, finish following these steps on a machine with the same os, network connected, and python installed:
1) Create a requirements.txt
file with similar content (Note - these are the libraries you wish to download):
Flask==0.12
requests>=2.7.0
scikit-learn==0.19.1
numpy==1.14.3
pandas==0.22.0
One option for creating the requirements file is to use pip freeze > requirements.txt
. This will list all libraries in your environment. Then you can go in to requirements.txt
and remove un-needed ones.
2) Execute command mkdir wheelhouse && pip download -r requirements.txt -d wheelhouse
to download libs and their dependencies to directory wheelhouse
3) Copy requirements.txt into wheelhouse
directory
4) Archive wheelhouse into wheelhouse.tar.gz
with tar -zcf wheelhouse.tar.gz wheelhouse
Then upload wheelhouse.tar.gz
to your target machine:
1) Execute tar -zxf wheelhouse.tar.gz
to extract the files
2) Execute pip install -r wheelhouse/requirements.txt --no-index --find-links wheelhouse
to install the libs and their dependencies
Try
sudo -su db2inst1 /opt/ibm/db2/V9.7/bin/db2 force application \(1995\)
To deal with any type of files for my own APP, I use this configuration for CFBundleDocumentTypes:
<key>CFBundleDocumentTypes</key>
<array>
<dict>
<key>CFBundleTypeName</key>
<string>IPA</string>
<key>LSItemContentTypes</key>
<array>
<string>public.item</string>
<string>public.content</string>
<string>public.data</string>
<string>public.database</string>
<string>public.composite-content</string>
<string>public.contact</string>
<string>public.archive</string>
<string>public.url-name</string>
<string>public.text</string>
<string>public.plain-text</string>
<string>public.source-code</string>
<string>public.executable</string>
<string>public.script</string>
<string>public.shell-script</string>
<string>public.xml</string>
<string>public.symlink</string>
<string>org.gnu.gnu-zip-archve</string>
<string>org.gnu.gnu-tar-archive</string>
<string>public.image</string>
<string>public.movie</string>
<string>public.audiovisual-?content</string>
<string>public.audio</string>
<string>public.directory</string>
<string>public.folder</string>
<string>com.apple.bundle</string>
<string>com.apple.package</string>
<string>com.apple.plugin</string>
<string>com.apple.application-?bundle</string>
<string>com.pkware.zip-archive</string>
<string>public.filename-extension</string>
<string>public.mime-type</string>
<string>com.apple.ostype</string>
<string>com.apple.nspboard-typ</string>
<string>com.adobe.pdf</string>
<string>com.adobe.postscript</string>
<string>com.adobe.encapsulated-?postscript</string>
<string>com.adobe.photoshop-?image</string>
<string>com.adobe.illustrator.ai-?image</string>
<string>com.compuserve.gif</string>
<string>com.microsoft.word.doc</string>
<string>com.microsoft.excel.xls</string>
<string>com.microsoft.powerpoint.?ppt</string>
<string>com.microsoft.waveform-?audio</string>
<string>com.microsoft.advanced-?systems-format</string>
<string>com.microsoft.advanced-?stream-redirector</string>
<string>com.microsoft.windows-?media-wmv</string>
<string>com.microsoft.windows-?media-wmp</string>
<string>com.microsoft.windows-?media-wma</string>
<string>com.apple.keynote.key</string>
<string>com.apple.keynote.kth</string>
<string>com.truevision.tga-image</string>
</array>
<key>CFBundleTypeIconFiles</key>
<array>
<string>Icon-76@2x</string>
</array>
</dict>
</array>
You can combine multiple selectors with a comma:
$('#Create .myClass,#Edit .myClass').plugin({options here});
Or if you're going to have a bunch of them, you could add a class to all your form elements and then search within that class. This doesn't get you the supposed speed savings of restricting the search, but I honestly wouldn't worry too much about that if I were you. Browsers do a lot of fancy things to optimize common operations behind your back -- the simple class selector might be faster.
In MySQL itself, you can specify CSV output like:
SELECT order_id,product_name,qty
FROM orders
INTO OUTFILE '/tmp/orders.csv'
FIELDS TERMINATED BY ','
ENCLOSED BY '"'
LINES TERMINATED BY '\n'
From http://www.tech-recipes.com/rx/1475/save-mysql-query-results-into-a-text-or-csv-file/
If your web server is IIS, you need to make sure that the new Office 2007 (I see the xlsx suffix) mime types are added to the list of mime types in IIS, otherwise it will refuse to serve the unknown file type.
Here's one link to tell you how:
/* EXAMPLE: /MONDAY/ SET DATEFIRST 1 SELECT dbo.FUNC_GETDATEDIFFERENCE_WO_WEEKEND('2019-02-01','2019-02-12') */ CREATE FUNCTION FUNC_GETDATEDIFFERENCE_WO_WEEKEND ( @pdtmaLastLoanPayDate DATETIME, @pdtmaDisbursedDate DATETIME ) RETURNS BIGINT BEGIN
DECLARE
@mintDaysDifference BIGINT
SET @mintDaysDifference = 0
WHILE CONVERT(NCHAR(10),@pdtmaLastLoanPayDate,121) <= CONVERT(NCHAR(10),@pdtmaDisbursedDate,121)
BEGIN
IF DATEPART(WEEKDAY,@pdtmaLastLoanPayDate) NOT IN (6,7)
BEGIN
SET @mintDaysDifference = @mintDaysDifference + 1
END
SET @pdtmaLastLoanPayDate = DATEADD(DAY,1,@pdtmaLastLoanPayDate)
END
RETURN ISNULL(@mintDaysDifference,0)
END
Yours and VladLosevs' solutions are probably better than mine. If you want a brute-force solution, however, try this:
SET(CMAKE_EXE_LINKER_FLAGS /NODEFAULTLIB:\"msvcprtd.lib;MSVCRTD.lib\")
FOREACH(flag_var
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if(${flag_var} MATCHES "/MD")
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif(${flag_var} MATCHES "/MD")
ENDFOREACH(flag_var)
As you may have already figured, Asp.Net MVC is a different paradigm than Asp.Net (webforms). Accessing form elements between the server and client take a different approach in Asp.Net MVC.
You can google more reading material on this on the web. For now, I would suggest using Ajax to get or post data to the server. You can still employ input type="hidden"
, but initialize it with a value from the ViewData
or for Razor, ViewBag
.
For example, your controller may look like this:
public ActionResult Index()
{
ViewBag.MyInitialValue = true;
return View();
}
In your view, you can have an input elemet that is initialized by the value in your ViewBag
:
<input type="hidden" name="myHiddenInput" id="myHiddenInput" value="@ViewBag.MyInitialValue" />
Then you can pass data between the client and server via ajax. For example, using jQuery:
$.get('GetMyNewValue?oldValue=' + $('#myHiddenInput').val(), function (e) {
// blah
});
You can alternatively use $.ajax
, $.getJSON
, $.post
depending on your requirement.
You can use in
to look for an item in a collection, and a list comprehension to extract the field you are interested in. This (works for lists, sets, tuples, and anything that defines __contains__
or __getitem__
).
if 5 in [data.n for data in myList]:
print "Found it"
See also:
The syntax for REPLACE:
REPLACE (string_expression,string_pattern,string_replacement)
So that the SQL you need should be:
UPDATE [DataTable] SET [ColumnValue] = REPLACE([ColumnValue], 'domain2', 'domain1')
java.exe is the command where it waits for application to complete untill it takes the next command. javaw.exe is the command which will not wait for the application to complete. you can go ahead with another commands.
I don't know if there's any solution to do this in a database-agnostic way, since you most likely will need some form of string manipulation, and those are typically different between vendors.
For SQL Server 2005 and up, you could use:
SELECT
r.ID, r.Name,
Resources = STUFF(
(SELECT ','+a.Name
FROM dbo.Applications a
INNER JOIN dbo.ApplicationsResources ar ON ar.app_id = a.id
WHERE ar.resource_id = r.id
FOR XML PATH('')), 1, 1, '')
FROM
dbo.Resources r
It uses the SQL Server 2005 FOR XML PATH
construct to list the subitems (the applications for a given resource) as a comma-separated list.
Marc
There are a few things to keep in mind while declaring primitive type values.
They are:
So in your code:
public class Main {
int instanceVariable;
static int staticVariable;
public static void main(String[] args) {
Main mainInstance = new Main()
int localVariable;
int localVariableTwo = 2;
System.out.println(mainInstance.instanceVariable);
System.out.println(staticVariable);
// System.out.println(localVariable); // Will throw a compilation error
System.out.println(localVariableTwo);
}
}
Using Java 8 APIs,
List<Long> empNoList = Arrays.asList(1234, 7678, 2432, 9756556, 3354646);
List<String> parameters = new ArrayList<>();
empNoList.forEach(empNo -> parameters.add("?")); //Use forEach to add required no. of '?'
String commaSepParameters = String.join(",", parameters); //Use String to join '?' with ','
StringBuilder selectQuery = new StringBuilder().append("SELECT COUNT(EMP_ID) FROM EMPLOYEE WHERE EMP_ID IN (").append(commaSepParameters).append(")");
Seems you need to use JToggleButton
:
JToggleButton tb = new JToggleButton("push me");
tb.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JToggleButton btn = (JToggleButton) e.getSource();
btn.setText(btn.isSelected() ? "pushed" : "push me");
}
});
Useful tip - if you use __FILE__
and __LINE__
then format your debug as:
"file(line): Your output here"
then when you click on that line in the output window Visual Studio will jump directly to that line of code. An example:
#include <Windows.h>
#include <iostream>
#include <sstream>
void DBOut(const char *file, const int line, const WCHAR *s)
{
std::wostringstream os_;
os_ << file << "(" << line << "): ";
os_ << s;
OutputDebugStringW(os_.str().c_str());
}
#define DBOUT(s) DBOut(__FILE__, __LINE__, s)
I wrote a blog post about this so I always knew where I could look it up: https://windowscecleaner.blogspot.co.nz/2013/04/debug-output-tricks-for-visual-studio.html
Most applications I've worked with use decimal
to represent money. This is based on the assumption that the application will never be concerned with more than one currency.
This assumption may be based on another assumption, that the application will never be used in other countries with different currencies. I've seen cases where that proved to be false.
Now that assumption is being challenged in a new way: New currencies such as Bitcoin are becoming more common, and they aren't specific to any country. It's not unrealistic that an application used in just one country may still need to support multiple currencies.
Some people will say that creating or even using a type just for money is "gold plating," or adding extra complexity beyond the known requirements. I strongly disagree. The more ubiquitous a concept is within your domain, the more important it is to make a reasonable effort to use the correct abstraction up front. If you want to see complexity, try working in an application that used to use decimal
and now there's an additional Currency
property next to every decimal
property.
If you use the wrong abstraction up front, replacing it later will be a hundred times more work. That means potentially introducing defects into existing code, and the best part is that those defects will likely involve amounts of money, transactions with money, or just anything with money.
And it's not that difficult to use something other than decimal. Google "nuget money type" and you'll see that numerous developers have created such abstractions (including me.) It's easy. It's as easy as using DateTime
instead of storing a date in a string
.
$this is a special variable and it refers to the same object ie. itself.
it actually refer instance of current class
here is an example which will clear the above statement
<?php
class Books {
/* Member variables */
var $price;
var $title;
/* Member functions */
function setPrice($par){
$this->price = $par;
}
function getPrice(){
echo $this->price ."<br/>";
}
function setTitle($par){
$this->title = $par;
}
function getTitle(){
echo $this->title ." <br/>";
}
}
?>
I used the Multiple SCMs Plugin in conjunction with the Git Plugin successfully with Jenkins.
While LIKE
is suitable for this case, a more general purpose solution is to use instr
, which doesn't require characters in the search string to be escaped. Note: instr
is available starting from Sqlite 3.7.15.
SELECT *
FROM TABLE
WHERE instr(column, 'cats') > 0;
Also, keep in mind that LIKE
is case-insensitive, whereas instr
is case-sensitive.
Should use ngChange instead of ngClick if trigger source is not from click.
Is the below what you want ? what exactly doesn't work in your case ?
var myApp = angular.module('myApp', []);
function MyCtrl($scope) {
$scope.value = "none" ;
$scope.isChecked = false;
$scope.checkStuff = function () {
$scope.isChecked = !$scope.isChecked;
}
}
<div ng-controller="MyCtrl">
<input type="radio" ng-model="value" value="one" ng-change="checkStuff()" />
<span> {{value}} isCheck:{{isChecked}} </span>
</div>
$sql = "SELECT * FROM tablename WHERE condition";
$res = mysql_query($sql);
while ($row = mysql_fetch_assoc($res)) {
foreach($row as $key => $field) {
echo "<br>";
if(empty($row[$key])){
echo $key." : empty field :"."<br>";
}else{
echo $key." =" . $field."<br>";
}
}
}
Change 'middle' to 'center'. Like so:
<img align="center" ....>
I understand you asked for sendmail but why not use the default mail? It can easily send html emails.
Works on: RHEL 5.10/6.x & CentOS 5.8
Example:
cat ~/campaigns/release-status.html | mail -s "$(echo -e "Release Status [Green]\nContent-Type: text/html")" [email protected] -v
CodeShare: http://www.codeshare.io/8udx5
Assume that you need to launch ps script from shared folder
copy \\\server\script.ps1 c:\tmp.ps1 /y && PowerShell.exe -ExecutionPolicy Bypass -File c:\tmp.ps1 && del /f c:\tmp.ps1
P.S. Reduce googling)
I was missing the below line in my app/build.gradle file
apply plugin: 'com.google.gms.google-services'
and once clean project and run again. That fixed it for me.
If you want to completely destroy the target, you have a couple of options. First you can remove the object from the DOM as described above...
console.log($target); // jQuery object
$target.remove(); // remove target from the DOM
console.log($target); // $target still exists
Option 1 - Then replace target with an empty jQuery object (jQuery 1.4+)
$target = $();
console.log($target); // empty jQuery object
Option 2 - Or delete the property entirely (will cause an error if you reference it elsewhere)
delete $target;
console.log($target); // error: $target is not defined
More reading: info about empty jQuery object, and info about delete
Just like any other collection. With the addition of the List<T>.ForEach
method.
foreach (var item in myMoney)
Console.WriteLine("amount is {0}, and type is {1}", item.amount, item.type);
for (int i = 0; i < myMoney.Count; i++)
Console.WriteLine("amount is {0}, and type is {1}", myMoney[i].amount, myMoney[i].type);
myMoney.ForEach(item => Console.WriteLine("amount is {0}, and type is {1}", item.amount, item.type));
What about anonymous fields? I'm not sure if that will constitute a "nested struct" but it's cleaner than having a nested struct declaration. What if you want to reuse the nested element elsewhere?
type NestedElement struct{
someNumber int `json:"number"`
someString string `json:"string"`
}
type BaseElement struct {
NestedElement `json:"bar"`
}
Here is an answer that's simple so you can see how it works, small and cross-platform.
It only uses built-in modules (os
, sys
and inspect
) so should work
on any operating system (OS) because Python is designed for that.
from inspect import getsourcefile
import os.path as path, sys
current_dir = path.dirname(path.abspath(getsourcefile(lambda:0)))
sys.path.insert(0, current_dir[:current_dir.rfind(path.sep)])
import my_module # Replace "my_module" here with the module name.
sys.path.pop(0)
For less lines than this, replace the second line with import os.path as path, sys, inspect
,
add inspect.
at the start of getsourcefile
(line 3) and remove the first line.
- however this imports all of the module so could need more time, memory and resources.
from inspect import getsourcefile
import os.path
import sys
current_path = os.path.abspath(getsourcefile(lambda:0))
current_dir = os.path.dirname(current_path)
parent_dir = current_dir[:current_dir.rfind(os.path.sep)]
sys.path.insert(0, parent_dir)
import my_module # Replace "my_module" here with the module name.
It uses an example from a Stack Overflow answer How do I get the path of the current
executed file in Python? to find the source (filename) of running code with a built-in tool.
from inspect import getsourcefile from os.path import abspath
Next, wherever you want to find the source file from you just use:
abspath(getsourcefile(lambda:0))
My code adds a file path to sys.path
, the python path list
because this allows Python to import modules from that folder.
After importing a module in the code, it's a good idea to run sys.path.pop(0)
on a new line
when that added folder has a module with the same name as another module that is imported
later in the program. You need to remove the list item added before the import, not other paths.
If your program doesn't import other modules, it's safe to not delete the file path because
after a program ends (or restarting the Python shell), any edits made to sys.path
disappear.
My answer doesn't use the __file__
variable to get the file path/filename of running
code because users here have often described it as unreliable. You shouldn't use it
for importing modules from parent folder in programs used by other people.
Some examples where it doesn't work (quote from this Stack Overflow question):
• it can't be found on some platforms • it sometimes isn't the full file path
py2exe
doesn't have a__file__
attribute, but there is a workaround- When you run from IDLE with
execute()
there is no__file__
attribute- OS X 10.6 where I get
NameError: global name '__file__' is not defined
While most answers are a copy of SolutionYogi's answer, they all miss an important check to see if 'cell' is not null which will return an error if clicking on the headers. So, here is the answer with the check included:
function addRowHandlers() {
var table = document.getElementById("tableId");
var rows = table.getElementsByTagName("tr");
for (i = 0; i < rows.length; i++) {
var currentRow = table.rows[i];
var createClickHandler = function(row) {
return function() {
var cell = row.getElementsByTagName("td")[0];
// check if not null
if(!cell) return; // no errors!
var id = cell.innerHTML;
alert("id:" + id);
};
};
currentRow.onclick = createClickHandler(currentRow);
}
}
One option is to use the delete method as follows:
StringBuffer sb = new StringBuffer();
for (int n = 0; n < 10; n++) {
sb.append("a");
// This will clear the buffer
sb.delete(0, sb.length());
}
Another option (bit cleaner) uses setLength(int len):
sb.setLength(0);
See Javadoc for more info:
You can use these commands:
npm cache clean
npm update -g [package....]
If you are upgrading from a previous version of node, then you will want to update all existing global packages. You can also specify the package name to be updated.
I have written a custom code for setInterval function which can also help
let interval;
function startInterval(){
interval = setInterval(appendDateToBody, 1000);
console.log(interval);
}
function appendDateToBody() {
document.body.appendChild(
document.createTextNode(new Date() + " "));
}
function stopInterval() {
clearInterval(interval);
console.log(interval);
}
_x000D_
<!DOCTYPE html>
<html>
<head>
<title>setInterval</title>
</head>
<body>
<input type="button" value="Stop" onclick="stopInterval();" />
<input type="button" value="Start" onclick="startInterval();" />
</body>
</html>
_x000D_
Don't hardcode ip of containers in nginx config, docker link adds the hostname of the linked machine to the hosts file of the container and you should be able to ping by hostname.
EDIT: Docker 1.9 Networking no longer requires you to link containers, when multiple containers are connected to the same network, their hosts file will be updated so they can reach each other by hostname.
Every time a docker container spins up from an image (even stop/start-ing an existing container) the containers get new ip's assigned by the docker host. These ip's are not in the same subnet as your actual machines.
see docker linking docs (this is what compose uses in the background)
but more clearly explained in the docker-compose
docs on links & expose
links
links: - db - db:database - redis
An entry with the alias' name will be created in /etc/hosts inside containers for this service, e.g:
172.17.2.186 db 172.17.2.186 database 172.17.2.187 redis
expose
Expose ports without publishing them to the host machine - they'll only be accessible to linked services. Only the internal port can be specified.
and if you set up your project to get the ports + other credentials through environment variables, links automatically set a bunch of system variables:
To see what environment variables are available to a service, run
docker-compose run SERVICE env
.
name_PORT
Full URL, e.g. DB_PORT=tcp://172.17.0.5:5432
name_PORT_num_protocol
Full URL, e.g.
DB_PORT_5432_TCP=tcp://172.17.0.5:5432
name_PORT_num_protocol_ADDR
Container's IP address, e.g.
DB_PORT_5432_TCP_ADDR=172.17.0.5
name_PORT_num_protocol_PORT
Exposed port number, e.g.
DB_PORT_5432_TCP_PORT=5432
name_PORT_num_protocol_PROTO
Protocol (tcp or udp), e.g.
DB_PORT_5432_TCP_PROTO=tcp
name_NAME
Fully qualified container name, e.g.
DB_1_NAME=/myapp_web_1/myapp_db_1
When clicking on the button for search you can find it without a loop.
Just add to the option an attribute with the value you need (like id
) and search for it specific.
$('#search_wrapper button').on('click', function(){
console.log($('option[value="'+
$('#autocomplete_input').val() +'"]').data('value'));
})
You can't run PHP
in an html page ending with .html
. Unless the page is actually PHP and the extension was changed with .htaccess
from .php
to .html
What you mean is:
index.html
<html>
...
<?php echo "Hello world";?> //This is impossible
index.php //The file extension can be changed using htaccess, ex: its type stays php but will be visible to visitors as index.html
<?php echo "Hello world";?>
The problem is that if you try to write a <table>
or a <tr>
or <td>
tag using JS every time you insert a new tag the browser will try to close it as it will think that there is an error on the code.
Instead of writing your table line by line, concatenate your table into a variable and insert it once created:
<script language="javascript" type="text/javascript">
<!--
var myArray = new Array();
myArray[0] = 1;
myArray[1] = 2.218;
myArray[2] = 33;
myArray[3] = 114.94;
myArray[4] = 5;
myArray[5] = 33;
myArray[6] = 114.980;
myArray[7] = 5;
var myTable= "<table><tr><td style='width: 100px; color: red;'>Col Head 1</td>";
myTable+= "<td style='width: 100px; color: red; text-align: right;'>Col Head 2</td>";
myTable+="<td style='width: 100px; color: red; text-align: right;'>Col Head 3</td></tr>";
myTable+="<tr><td style='width: 100px; '>---------------</td>";
myTable+="<td style='width: 100px; text-align: right;'>---------------</td>";
myTable+="<td style='width: 100px; text-align: right;'>---------------</td></tr>";
for (var i=0; i<8; i++) {
myTable+="<tr><td style='width: 100px;'>Number " + i + " is:</td>";
myArray[i] = myArray[i].toFixed(3);
myTable+="<td style='width: 100px; text-align: right;'>" + myArray[i] + "</td>";
myTable+="<td style='width: 100px; text-align: right;'>" + myArray[i] + "</td></tr>";
}
myTable+="</table>";
document.write( myTable);
//-->
</script>
If your code is in an external JS file, in HTML create an element with an ID where you want your table to appear:
<div id="tablePrint"> </div>
And in JS instead of document.write(myTable)
use the following code:
document.getElementById('tablePrint').innerHTML = myTable;
Try memory profiler. memory profiler
Line # Mem usage Increment Line Contents
==============================================
3 @profile
4 5.97 MB 0.00 MB def my_func():
5 13.61 MB 7.64 MB a = [1] * (10 ** 6)
6 166.20 MB 152.59 MB b = [2] * (2 * 10 ** 7)
7 13.61 MB -152.59 MB del b
8 13.61 MB 0.00 MB return a
I depends on what is the regexp language you use, but informally, it would be:
[:alpha:][:alpha:][:digit:][:digit:][:digit:][:digit:][:digit:][:digit:]
where [:alpha:] = [a-zA-Z]
and [:digit:] = [0-9]
If you use a regexp language that allows finite repetitions, that would look like:
[:alpha:]{2}[:digit:]{6}
The correct syntax depends on the particular language you're using, but that is the idea.
If you want a localized number of days between two dates (startDate
, endDate
):
var currentLocaleData = moment.localeData("en");
var duration = moment.duration(endDate.diff(startDate));
var nbDays = Math.floor(duration.asDays()); // complete days
var nbDaysStr = currentLocaleData.relativeTime(returnVal.days, false, "dd", false);
nbDaysStr
will contain something like '3 days';
See https://momentjs.com/docs/#/i18n/changing-locale/ for information on how to display the amount of hours or month, for example.
Easiest way would probably be with jQuery, as follows:
$(document).ready(function(){
$("#_1234").attr("checked","checked");
})
This adds a new attribute "checked" (which in HTML does not need a value). Just remember to include the jQuery library:
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
They are very similar but not really the same.
In terms of efficiency, I've found the left join is null statement more efficient (when an abundance of rows are to be selected that is)
Use the following Imports
Imports System.Data.SqlClient
Imports System.Data.Sql
Public SQLConn As New SqlConnection With {.ConnectionString = "Server=Desktop1[enter image description here][1];Database=Infostudio; Trusted_Connection=true;"}
Once should avoid emulating classical OO and use prototypical OO instead. A nice utility library for prototypical OO is traits.
Rather then overwriting methods and setting up inheritance chains (one should always favour object composition over object inheritance) you should be bundling re-usable functions into traits and creating objects with those.
var modifyA = {
modify: function() {
this.x = 300;
this.y = 400;
}
};
var modifyB = {
modify: function() {
this.x = 3000;
this.y = 4000;
}
};
C = function(trait) {
var o = Object.create(Object.prototype, Trait(trait));
o.modify();
console.log("sum : " + (o.x + o.y));
return o;
}
//C(modifyA);
C(modifyB);
This is what a constant expression in Java looks like:
package com.mycompany.mypackage;
public class MyLinks {
// constant expression
public static final String GUESTBOOK_URL = "/guestbook";
}
You can use it with annotations as following:
import com.mycompany.mypackage.MyLinks;
@WebServlet(urlPatterns = {MyLinks.GUESTBOOK_URL})
public class GuestbookServlet extends HttpServlet {
// ...
}
you need to convert to char first because converting to int adds those days to 1900-01-01
select CONVERT (datetime,convert(char(8),rnwl_efctv_dt ))
here are some examples
select CONVERT (datetime,5)
1900-01-06 00:00:00.000
select CONVERT (datetime,20100101)
blows up, because you can't add 20100101 days to 1900-01-01..you go above the limit
convert to char first
declare @i int
select @i = 20100101
select CONVERT (datetime,convert(char(8),@i))
I ended up with the following function ...
function HasNoteProperty(
[object]$testObject,
[string]$propertyName
)
{
$members = Get-Member -InputObject $testObject
if ($members -ne $null -and $members.count -gt 0)
{
foreach($member in $members)
{
if ( ($member.MemberType -eq "NoteProperty" ) -and `
($member.Name -eq $propertyName) )
{
return $true
}
}
return $false
}
else
{
return $false;
}
}
The following works as of April 2014. Delimiting each component of the URL with +
and &
for spaces and addition statements, respectively.
Full HTML:
<iframe src="http://maps.google.com/maps?q=Scottish+Rite+Hamilton+ON&loc:43.25911+-79.879494&z=15&output=embed"></iframe>
Broken down:
http://maps.google.com/maps?q=
where ?q= starts the general search, which I provide a venue, city, province info using +
for spaces.
Scottish+Rite+Hamilton+ON
Next the geo-data. Lat and lng.
&loc:43.25911+-79.879494
Zoom level
&z=15
Required for iframes:
&output=embed
We chose a combination of Mongo/Dynamo for a healthcare product. Basically mongo allows better searching, but the hosted Dynamo is great because its HIPAA compliant without any extra work. So we host the mongo portion with no personal data on a standard setup and allow amazon to deal with the HIPAA portion in terms of infrastructure. We can query certain items from mongo which bring up documents with pointers (ID's) of the relatable Dynamo document.
The main reason we chose to do this using mongo instead of hosting the entire application on dynamo was for 2 reasons. First, we needed to preform location based searches which mongo is great at and at the time, Dynamo was not, but they do have an option now.
Secondly was that some documents were unstructured and we did not know ahead of time what the data would be, so for example lets say user a inputs a document in the "form" collection like this: {"username": "user1", "email": "[email protected]"}. And another user puts this in the same collection {"phone": "813-555-3333", "location": [28.1234,-83.2342]}. With mongo we can search any of these dynamic and unknown fields at any time, with Dynamo, you could do this but would have to make a index every time a new field was added that you wanted searchable. So if you have never had a phone field in your Dynamo document before and then all of the sudden, some one adds it, its completely unsearchable.
Now this brings up another point in which you have mentioned. Sometimes choosing the right solution for the job does not always mean choosing the best product for the job. For example you may have a client who needs and will use the system you created for 10+ years. Going with a SaaS/IaaS solution that is good enough to get the job done may be a better option as you can rely on amazon to have up-kept and maintained their systems over the long haul.
try this
$tz = new DateTimeZone('Your Time Zone');
$date = new DateTime($today,$tz);
$interval = new DateInterval('P1D');
$date->sub($interval);
echo $date->format('d.m.y');
?>
Presuming you get the timestamp in Helsinki time, I would create a date object set to midnight January 1 1970 UTC (for disregarding the local timezone settings of the browser). Then just add the needed number of milliseconds to it.
var _date = new Date( Date.UTC(1970, 0, 1, 0, 0, 0, 0) );_x000D_
_date.setUTCMilliseconds(1270544790922);_x000D_
_x000D_
alert(_date); //date shown shifted corresponding to local time settings_x000D_
alert(_date.getUTCFullYear()); //the UTC year value_x000D_
alert(_date.getUTCMonth()); //the UTC month value_x000D_
alert(_date.getUTCDate()); //the UTC day of month value_x000D_
alert(_date.getUTCHours()); //the UTC hour value_x000D_
alert(_date.getUTCMinutes()); //the UTC minutes value
_x000D_
Watch out later, to always ask UTC values from the date object. This way users will see the same date values regardless of local settings. Otherwise date values will be shifted corresponding to local time settings.
James's answer works just fine if you know the name of the actual constraint. The tricky thing is that in legacy and other real world scenarios you may not know what the constraint is called.
If this is the case you risk creating duplicate constraints, to avoid you can use:
create function fnGetForeignKeyName
(
@ParentTableName nvarchar(255),
@ParentColumnName nvarchar(255),
@ReferencedTableName nvarchar(255),
@ReferencedColumnName nvarchar(255)
)
returns nvarchar(255)
as
begin
declare @name nvarchar(255)
select @name = fk.name from sys.foreign_key_columns fc
join sys.columns pc on pc.column_id = parent_column_id and parent_object_id = pc.object_id
join sys.columns rc on rc.column_id = referenced_column_id and referenced_object_id = rc.object_id
join sys.objects po on po.object_id = pc.object_id
join sys.objects ro on ro.object_id = rc.object_id
join sys.foreign_keys fk on fk.object_id = fc.constraint_object_id
where
po.object_id = object_id(@ParentTableName) and
ro.object_id = object_id(@ReferencedTableName) and
pc.name = @ParentColumnName and
rc.name = @ReferencedColumnName
return @name
end
go
declare @name nvarchar(255)
declare @sql nvarchar(4000)
-- hunt for the constraint name on 'Badges.BadgeReasonTypeId' table refs the 'BadgeReasonTypes.Id'
select @name = dbo.fnGetForeignKeyName('dbo.Badges', 'BadgeReasonTypeId', 'dbo.BadgeReasonTypes', 'Id')
-- if we find it, the name will not be null
if @name is not null
begin
set @sql = 'alter table Badges drop constraint ' + replace(@name,']', ']]')
exec (@sql)
end
We should have the projects which include (at least) all the filtered tags, or said in a different way, exclude the ones which doesn't include all those filtered tags.
So we can use Linq Except
to get those tags which are not included. Then we can use Count() == 0
to have only those which excluded no tags:
var res = projects.Where(p => filteredTags.Except(p.Tags).Count() == 0);
Or we can make it slightly faster with by replacing Count() == 0
with !Any()
:
var res = projects.Where(p => !filteredTags.Except(p.Tags).Any());
That character is the BOM or "Byte Order Mark". It is usually received as the first few bytes of a file, telling you how to interpret the encoding of the rest of the data. You can simply remove the character to continue. Although, since the error says you were trying to convert to 'ascii', you should probably pick another encoding for whatever you were trying to do.
If you want to upload a single file with Python requests
library, then requests lib supports streaming uploads, which allow you to send large files or streams without reading into memory.
with open('massive-body', 'rb') as f:
requests.post('http://some.url/streamed', data=f)
Then store the file on the server.py
side such that save the stream into file without loading into the memory. Following is an example with using Flask file uploads.
@app.route("/upload", methods=['POST'])
def upload_file():
from werkzeug.datastructures import FileStorage
FileStorage(request.stream).save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
return 'OK', 200
Or use werkzeug Form Data Parsing as mentioned in a fix for the issue of "large file uploads eating up memory" in order to avoid using memory inefficiently on large files upload (s.t. 22 GiB file in ~60 seconds. Memory usage is constant at about 13 MiB.).
@app.route("/upload", methods=['POST'])
def upload_file():
def custom_stream_factory(total_content_length, filename, content_type, content_length=None):
import tempfile
tmpfile = tempfile.NamedTemporaryFile('wb+', prefix='flaskapp', suffix='.nc')
app.logger.info("start receiving file ... filename => " + str(tmpfile.name))
return tmpfile
import werkzeug, flask
stream, form, files = werkzeug.formparser.parse_form_data(flask.request.environ, stream_factory=custom_stream_factory)
for fil in files.values():
app.logger.info(" ".join(["saved form name", fil.name, "submitted as", fil.filename, "to temporary file", fil.stream.name]))
# Do whatever with stored file at `fil.stream.name`
return 'OK', 200
You need to look at the return value of the call to showConfirmDialog
. I.E.:
int dialogResult = JOptionPane.showConfirmDialog (null, "Would You Like to Save your Previous Note First?","Warning",dialogButton);
if(dialogResult == JOptionPane.YES_OPTION){
// Saving code here
}
You were testing against dialogButton
, which you were using to set the buttons that should be displayed by the dialog, and this variable was never updated - so dialogButton
would never have been anything other than JOptionPane.YES_NO_OPTION
.
Per the Javadoc for showConfirmDialog
:
Returns: an integer indicating the option selected by the user
We can use the CONCAT
SQL function.
PreparedStatement pstmt = con.prepareStatement(
"SELECT * FROM analysis WHERE notes like CONCAT( '%',?,'%')";
pstmt.setString(1, notes);
ResultSet rs = pstmt.executeQuery();
This works perfectly for my case.
Related to how to link to the README.md
of a GitHub repository to a specific line number of code
You have three cases:
We can link to (custom commit)
But Link will ALWAYS link to old file version, which will NOT contains new updates in the master branch for example. Example:
https://github.com/username/projectname/blob/b8d94367354011a0470f1b73c8f135f095e28dd4/file.txt#L10
We can link to (custom branch) like (master-branch). But the link will ALWAYS link to the latest file version which will contain new updates. Due to new updates, the link may point to an invalid business line number. Example:
https://github.com/username/projectname/blob/master/file.txt#L10
GitHub can NOT make AUTO-link to any file either to (custom commit) nor (master-branch) Because of following business issues:
Try paint.setStyle(Paint.Style.STROKE)
?
For the 2017 CC release this has been moved (after many years of habit development). Find it now at:
Edit > Code > Apply Source Formatting.
It may be prudent to set up a keyboard shortcut if this is something you'll need regularly.
Edit > Keyboard Shortcuts
Only integer and hex directly, I'm afraid (ECMA 334v4):
9.4.4.2 Integer literals Integer literals are used to write values of types int, uint, long, and ulong. Integer literals have two possible forms: decimal and hexadecimal.
To parse, you can use:
int i = Convert.ToInt32("01101101", 2);
You cannot always make a branch or pull an existing branch and push back to it, because you are not registered as a collaborator for that specific project.
Forking is nothing more than a clone on the GitHub server side:
You keep a fork in sync with the original project by:
The rebase allows you to make sure your changes are straightforward (no merge conflict to handle), making your pulling request that more easy when you want the maintainer of the original project to include your patches in his project.
The goal is really to allow collaboration even though direct participation is not always possible.
The fact that you clone on the GitHub side means you have now two "central" repository ("central" as "visible from several collaborators).
If you can add them directly as collaborator for one project, you don't need to manage another one with a fork.
The merge experience would be about the same, but with an extra level of indirection (push first on the fork, then ask for a pull, with the risk of evolutions on the original repo making your fast-forward merges not fast-forward anymore).
That means the correct workflow is to git pull --rebase upstream
(rebase your work on top of new commits from upstream), and then git push --force origin
, in order to rewrite the history in such a way your own commits are always on top of the commits from the original (upstream) repo.
See also:
Why not use the System.Drawing.Image.GetThumbnailImage
method?
public Image GetThumbnailImage(
int thumbWidth,
int thumbHeight,
Image.GetThumbnailImageAbort callback,
IntPtr callbackData)
Example:
Image originalImage = System.Drawing.Image.FromStream(inputStream, true, true);
Image resizedImage = originalImage.GetThumbnailImage(newWidth, (newWidth * originalImage.Height) / originalWidth, null, IntPtr.Zero);
resizedImage.Save(imagePath, ImageFormat.Png);
Source: http://msdn.microsoft.com/en-us/library/system.drawing.image.getthumbnailimage.aspx
You can use the following solution to accomplish your goal:
struct student
{
char name[20];
char country[20];
};
void main()
{
struct student S={"Wolverine","America"};
struct student X;
X=S;
printf("%s%s",X.name,X.country);
}
If your content type is already UTF8 , then it is likely the data is already arriving in the wrong encoding. If you are getting the data from a database, make sure the database connection uses UTF-8.
If this is data from a file, make sure the file is encoded correctly as UTF-8. You can usually set this in the "Save as..." Dialog of the editor of your choice.
If the data is already broken when you view it in the source file, chances are that it used to be a UTF-8 file but was saved in the wrong encoding somewhere along the way.
You can use unionByName to make this:
df = df_1.unionByName(df_2)
unionByName is available since Spark 2.3.0.
No, you can't undo, rollback or reverse a commit.
(Note: if you deleted the data directory off the filesystem, do NOT stop the database. The following advice applies to an accidental commit of a DELETE
or similar, not an rm -rf /data/directory
scenario).
If this data was important, STOP YOUR DATABASE NOW and do not restart it. Use pg_ctl stop -m immediate
so that no checkpoint is run on shutdown.
You cannot roll back a transaction once it has commited. You will need to restore the data from backups, or use point-in-time recovery, which must have been set up before the accident happened.
If you didn't have any PITR / WAL archiving set up and don't have backups, you're in real trouble.
Once your database is stopped, you should make a file system level copy of the whole data directory - the folder that contains base
, pg_clog
, etc. Copy all of it to a new location. Do not do anything to the copy in the new location, it is your only hope of recovering your data if you do not have backups. Make another copy on some removable storage if you can, and then unplug that storage from the computer. Remember, you need absolutely every part of the data directory, including pg_xlog
etc. No part is unimportant.
Exactly how to make the copy depends on which operating system you're running. Where the data dir is depends on which OS you're running and how you installed PostgreSQL.
If you stop your DB quickly enough you might have a hope of recovering some data from the tables. That's because PostgreSQL uses multi-version concurrency control (MVCC) to manage concurrent access to its storage. Sometimes it will write new versions of the rows you update to the table, leaving the old ones in place but marked as "deleted". After a while autovaccum comes along and marks the rows as free space, so they can be overwritten by a later INSERT
or UPDATE
. Thus, the old versions of the UPDATE
d rows might still be lying around, present but inaccessible.
Additionally, Pg writes in two phases. First data is written to the write-ahead log (WAL). Only once it's been written to the WAL and hit disk, it's then copied to the "heap" (the main tables), possibly overwriting old data that was there. The WAL content is copied to the main heap by the bgwriter
and by periodic checkpoints. By default checkpoints happen every 5 minutes. If you manage to stop the database before a checkpoint has happened and stopped it by hard-killing it, pulling the plug on the machine, or using pg_ctl
in immediate
mode you might've captured the data from before the checkpoint happened, so your old data is more likely to still be in the heap.
Now that you have made a complete file-system-level copy of the data dir you can start your database back up if you really need to; the data will still be gone, but you've done what you can to give yourself some hope of maybe recovering it. Given the choice I'd probably keep the DB shut down just to be safe.
You may now need to hire an expert in PostgreSQL's innards to assist you in a data recovery attempt. Be prepared to pay a professional for their time, possibly quite a bit of time.
I posted about this on the Pg mailing list, and ?????? ?????? linked to depesz's post on pg_dirtyread, which looks like just what you want, though it doesn't recover TOAST
ed data so it's of limited utility. Give it a try, if you're lucky it might work.
See: pg_dirtyread on GitHub.
I've removed what I'd written in this section as it's obsoleted by that tool.
See also PostgreSQL row storage fundamentals
See my blog entry Preventing PostgreSQL database corruption.
On a semi-related side-note, if you were using two phase commit you could ROLLBACK PREPARED
for a transction that was prepared for commit but not fully commited. That's about the closest you get to rolling back an already-committed transaction, and does not apply to your situation.
Generate a number during the build and write it to a file. Whenever you make a release, commit that file with the comment "Build 147" (or whatever the build number currently is). Don't commit the file during normal development. This way, you can easily map between build numbers and versions in Git.
jQuery.load() is probably the easiest way to load data asynchronously using a selector, but you can also use any of the jquery ajax methods (get, post, getJSON, ajax, etc.)
Note that load allows you to use a selector to specify what piece of the loaded script you want to load, as in
$("#mydiv").load(location.href + " #mydiv");
Note that this technically does load the whole page and jquery removes everything but what you have selected, but that's all done internally.
Here are some branch naming conventions that I use and the reasons for them
Branch naming conventions
Group tokens
Use "grouping" tokens in front of your branch names.
group1/foo
group2/foo
group1/bar
group2/bar
group3/bar
group1/baz
The groups can be named whatever you like to match your workflow. I like to use short nouns for mine. Read on for more clarity.
Short well-defined tokens
Choose short tokens so they do not add too much noise to every one of your branch names. I use these:
wip Works in progress; stuff I know won't be finished soon
feat Feature I'm adding or expanding
bug Bug fix or experiment
junk Throwaway branch created to experiment
Each of these tokens can be used to tell you to which part of your workflow each branch belongs.
It sounds like you have multiple branches for different cycles of a change. I do not know what your cycles are, but let's assume they are 'new', 'testing' and 'verified'. You can name your branches with abbreviated versions of these tags, always spelled the same way, to both group them and to remind you which stage you're in.
new/frabnotz
new/foo
new/bar
test/foo
test/frabnotz
ver/foo
You can quickly tell which branches have reached each different stage, and you can group them together easily using Git's pattern matching options.
$ git branch --list "test/*"
test/foo
test/frabnotz
$ git branch --list "*/foo"
new/foo
test/foo
ver/foo
$ gitk --branches="*/foo"
Use slashes to separate parts
You may use most any delimiter you like in branch names, but I find slashes to be the most flexible. You might prefer to use dashes or dots. But slashes let you do some branch renaming when pushing or fetching to/from a remote.
$ git push origin 'refs/heads/feature/*:refs/heads/phord/feat/*'
$ git push origin 'refs/heads/bug/*:refs/heads/review/bugfix/*'
For me, slashes also work better for tab expansion (command completion) in my shell. The way I have it configured I can search for branches with different sub-parts by typing the first characters of the part and pressing the TAB key. Zsh then gives me a list of branches which match the part of the token I have typed. This works for preceding tokens as well as embedded ones.
$ git checkout new<TAB>
Menu: new/frabnotz new/foo new/bar
$ git checkout foo<TAB>
Menu: new/foo test/foo ver/foo
(Zshell is very configurable about command completion and I could also configure it to handle dashes, underscores or dots the same way. But I choose not to.)
It also lets you search for branches in many git commands, like this:
git branch --list "feature/*"
git log --graph --oneline --decorate --branches="feature/*"
gitk --branches="feature/*"
Caveat: As Slipp points out in the comments, slashes can cause problems. Because branches are implemented as paths, you cannot have a branch named "foo" and another branch named "foo/bar". This can be confusing for new users.
Do not use bare numbers
Do not use use bare numbers (or hex numbers) as part of your branch naming scheme. Inside tab-expansion of a reference name, git may decide that a number is part of a sha-1 instead of a branch name. For example, my issue tracker names bugs with decimal numbers. I name my related branches CRnnnnn rather than just nnnnn to avoid confusion.
$ git checkout CR15032<TAB>
Menu: fix/CR15032 test/CR15032
If I tried to expand just 15032, git would be unsure whether I wanted to search SHA-1's or branch names, and my choices would be somewhat limited.
Avoid long descriptive names
Long branch names can be very helpful when you are looking at a list of branches. But it can get in the way when looking at decorated one-line logs as the branch names can eat up most of the single line and abbreviate the visible part of the log.
On the other hand long branch names can be more helpful in "merge commits" if you do not habitually rewrite them by hand. The default merge commit message is Merge branch 'branch-name'
. You may find it more helpful to have merge messages show up as Merge branch 'fix/CR15032/crash-when-unformatted-disk-inserted'
instead of just Merge branch 'fix/CR15032'
.
str_split
can do the trick. Note that strings in PHP can be accessed just like a chars array, in most cases, you won't need to split your string into a "new" array.
Static Array :
Dynamic Array :
NOTE: The recommended way to do string formatting in Python is to use format()
, as outlined in the accepted answer. I'm preserving this answer as an example of the C-style syntax that's also supported.
# NOTE: format() is a better choice!
string1 = "go"
string2 = "now"
string3 = "great"
s = """
I will %s there
I will go %s
%s
""" % (string1, string2, string3)
print(s)
Some reading:
Here is an example showing some text in circles with data from a json file: http://bl.ocks.org/4474971. Which gives the following:
The main idea behind this is to encapsulate the text and the circle in the same "div
" as you would do in html to have the logo and the name of the company in the same div
in a page header.
The main code is:
var width = 960,
height = 500;
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height)
d3.json("data.json", function(json) {
/* Define the data for the circles */
var elem = svg.selectAll("g")
.data(json.nodes)
/*Create and place the "blocks" containing the circle and the text */
var elemEnter = elem.enter()
.append("g")
.attr("transform", function(d){return "translate("+d.x+",80)"})
/*Create the circle for each block */
var circle = elemEnter.append("circle")
.attr("r", function(d){return d.r} )
.attr("stroke","black")
.attr("fill", "white")
/* Create the text for each block */
elemEnter.append("text")
.attr("dx", function(d){return -20})
.text(function(d){return d.label})
})
and the json file is:
{"nodes":[
{"x":80, "r":40, "label":"Node 1"},
{"x":200, "r":60, "label":"Node 2"},
{"x":380, "r":80, "label":"Node 3"}
]}
The resulting html code shows the encapsulation you want:
<svg width="960" height="500">
<g transform="translate(80,80)">
<circle r="40" stroke="black" fill="white"></circle>
<text dx="-20">Node 1</text>
</g>
<g transform="translate(200,80)">
<circle r="60" stroke="black" fill="white"></circle>
<text dx="-20">Node 2</text>
</g>
<g transform="translate(380,80)">
<circle r="80" stroke="black" fill="white"></circle>
<text dx="-20">Node 3</text>
</g>
</svg>
select sysdate + 1/24 from dual;
sysdate is a function without arguments which returns DATE type
+ 1/24 adds 1 hour to a date
select to_char(to_date('2014-10-15 03:30:00 pm', 'YYYY-MM-DD HH:MI:SS pm') + 1/24, 'YYYY-MM-DD HH:MI:SS pm') from dual;
If you don't want to or can't use instanceof
, then compare with equals
:
if(obj.getClass().equals(MyObject.class)) System.out.println("true");
BTW - it's strange because the two Class
instances in your statement really should be the same, at least in your example code. They may be different if:
This is my sample code for rebuild url query string with JS
//function get current parameters_x000D_
$.urlParam = function(name){_x000D_
var results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);_x000D_
if (results==null){_x000D_
return null;_x000D_
}_x000D_
else{_x000D_
return results[1] || 0;_x000D_
}_x000D_
};_x000D_
_x000D_
//build a new parameters_x000D_
var param1 = $.urlParam('param1');_x000D_
var param2 = $.urlParam('param2');_x000D_
_x000D_
//check and create an array to save parameters_x000D_
var params = {};_x000D_
if (param1 != null) {_x000D_
params['param1'] = param1;_x000D_
}_x000D_
if (order != null) {_x000D_
params['param2'] = param2;_x000D_
}_x000D_
_x000D_
//build a new url with new parameters using jQuery param_x000D_
window.location.href = window.location.origin + window.location.pathname + '?' + $.param(params);
_x000D_
I used JQUERY param: http://api.jquery.com/jquery.param/ to create a new url with new parameters.
That is a binary operator in hibernate you should use
is not null
Have a look at 14.10. Expressions
msiexec.exe /x "{588A9A11-1E20-4B91-8817-2D36ACBBBF9F}" /q
Look at stat
for checking if the directory exists,
And mkdir
, to create a directory.
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
struct stat st = {0};
if (stat("/some/directory", &st) == -1) {
mkdir("/some/directory", 0700);
}
You can see the manual of these functions with the man 2 stat
and man 2 mkdir
commands.
Try this:
Dim Lastrow As Integer
Lastrow = ActiveSheet.Cells(Rows.Count, 1).End(xlUp).Row
Range("A2:L" & Lastrow).Select
Let's pretend that the value of Lastrow
is 50. When you use the following:
Range("A2:L2" & Lastrow).Select
Then it is selecting a range from A2 to L250.
I'd do it like this:
colnames=['TIME', 'X', 'Y', 'Z']
user1 = pd.read_csv('dataset/1.csv', names=colnames, header=None)
if it was an IPv6 address, have a look at this: https://code.google.com/p/android/issues/detail?id=33046
Looks like there was a bug in Android that was fixed in 4.3(?).
Note that Visual C++ compilers are removed when you upgrade Visual Studio 2010 Professional or Visual Studio 2010 Express to Visual Studio 2010 SP1 if Windows SDK v7.1 is installed.
For instructions on resolving this, see KB2519277 on the Microsoft Support site.
os.system()
returns the (encoded) process exit value. 0
means success:
On Unix, the return value is the exit status of the process encoded in the format specified for
wait()
. Note that POSIX does not specify the meaning of the return value of the C system() function, so the return value of the Python function is system-dependent.
The output you see is written to stdout
, so your console or terminal, and not returned to the Python caller.
If you wanted to capture stdout
, use subprocess.check_output()
instead:
x = subprocess.check_output(['whoami'])
Any seaborn plots suported by facetgrid won't work with (e.g. catplot)
g.set_xticklabels(rotation=30)
however barplot, countplot, etc. will work as they are not supported by facetgrid. Below will work for them.
g.set_xticklabels(g.get_xticklabels(), rotation=30)
Also, in case you have 2 graphs overlayed on top of each other, try set_xticklabels on graph which supports it.
You first have to tell Gnuplot to use a style that uses points, e.g. with points
or with linespoints
. Try for example:
plot sin(x) with points
Output:
Now try:
plot sin(x) with points pointtype 5
Output:
You may also want to look at the output from the test
command which shows you the capabilities of the current terminal. Here are the capabilities for my pngairo terminal:
Try these ...
Option1
window.location=document.referrer;
Option2
window.location.reload(history.back());
Sort the unsorted hashmap in ascending order.
// Sorting the list based on values
Collections.sort(list, new Comparator<Entry<String, Integer>>() {
public int compare(Entry<String, Integer> o1, Entry<String, Integer> o2)
{
return o2.getValue().compareTo(o1.getValue());
}
});
// Maintaining insertion order with the help of LinkedList
Map<String, Integer> sortedMap = new LinkedHashMap<String, Integer>();
for (Entry<String, Integer> entry : list) {
sortedMap.put(entry.getKey(), entry.getValue());
}
Ruby's just the same, btw, offering both #length
and #size
as synonyms for the number of items in arrays and hashes (C++ only does it for strings).
Minimalists and people who believe "there ought to be one, and ideally only one, obvious way to do it" (as the Zen of Python recites) will, I guess, mostly agree with your doubts, @Naveen, while fans of Perl's "There's more than one way to do it" (or SQL's syntax with a bazillion optional "noise words" giving umpteen identically equivalent syntactic forms to express one concept) will no doubt be complaining that Ruby, and especially C++, just don't go far enough in offering such synonymical redundancy;-).