Hadley Wickham
dplyr
packages is always a saver in case of data wrangling.
To add the desired division as a third variable I would use mutate()
d <- mutate(d, new = min / count2.freq)
request.args
is a MultiDict with the parsed contents of the query string.
From the documentation of get
method:
get(key, default=None, type=None)
Return the default value if the requested data doesn’t exist. If type is provided and is a callable it should convert the value, return it or raise a ValueError if that is not possible.
You can use the onload
event to detect when the iframe has finished loading, and there you can use the scrollTo function on the contentWindow of the iframe, to scroll to a defined position of pixels, from left and top (x, y):
var myIframe = document.getElementById('iframe');
myIframe.onload = function () {
myIframe.contentWindow.scrollTo(xcoord,ycoord);
}
You can check a working example here.
Note: This will work if both pages reside on the same domain.
First Create Procedure as Below:
CREATE DEFINER=`root`@`%` PROCEDURE `sp_split`(str nvarchar(6500), dilimiter varchar(15), tmp_name varchar(50))
BEGIN
declare end_index int;
declare part nvarchar(6500);
declare remain_len int;
set end_index = INSTR(str, dilimiter);
while(end_index != 0) do
/* Split a part */
set part = SUBSTRING(str, 1, end_index - 1);
/* insert record to temp table */
call `sp_split_insert`(tmp_name, part);
set remain_len = length(str) - end_index;
set str = substring(str, end_index + 1, remain_len);
set end_index = INSTR(str, dilimiter);
end while;
if(length(str) > 0) then
/* insert record to temp table */
call `sp_split_insert`(tmp_name, str);
end if;
END
After that create procedure as below:
CREATE DEFINER=`root`@`%` PROCEDURE `sp_split_insert`(tb_name varchar(255), tb_value nvarchar(6500))
BEGIN
SET @sql = CONCAT('Insert Into ', tb_name,'(item) Values(?)');
PREPARE s1 from @sql;
SET @paramA = tb_value;
EXECUTE s1 USING @paramA;
END
How call test
CREATE DEFINER=`root`@`%` PROCEDURE `test_split`(test_text nvarchar(255))
BEGIN
create temporary table if not exists tb_search
(
item nvarchar(6500)
);
call sp_split(test_split, ',', 'tb_search');
select * from tb_search where length(trim(item)) > 0;
drop table tb_search;
END
call `test_split`('Apple,Banana,Mengo');
If you moved the modules, modify your workspace.xml file and settings.gradle file to use the new paths of your module. Otherwise you will need to try using the import module feature.
Redirection of program output is performed by the shell.
grep ... > output.txt
grep
has no mechanism for adding blank lines between each match, but does provide options such as context around the matched line and colorization of the match itself. See the grep(1)
man page for details, specifically the -C
and --color
options.
I am afraid there is no way to get the query string parameters parsed separately from the post parameters. BTW the fact that such API absent may mean that probably you should check your design. Why are you using query string when sending POST? If you really want to send more data into URL use REST-like convention, e.g. instead of sending
http://mycompany.com/myapp/myservlet?first=11&second=22
say:
If you would like to support really old browsers you should parse the date string, since using the ISO8601 date format with the Date
constructor is not supported pre IE9:
var queryDate = '2009-11-01',
dateParts = queryDate.match(/(\d+)/g)
realDate = new Date(dateParts[0], dateParts[1] - 1, dateParts[2]);
// months are 0-based!
// For >= IE9
var realDate = new Date('2009-11-01');
$('#datePicker').datepicker({ dateFormat: 'yy-mm-dd' }); // format to show
$('#datePicker').datepicker('setDate', realDate);
Check the above example here.
A solution which work with Google Chrome and Firefox (not tested with Internet Explorer) is to set display: table-cell
as a block element.
public static int GetHowManyTimeOccurenceCharInString(string text, char c)
{
int count = 0;
foreach(char ch in text)
{
if(ch.Equals(c))
{
count++;
}
}
return count;
}
You can use the below C# Method to generate the insert scripts using Excel sheet just you need import OfficeOpenXml Package from NuGet Package Manager before executing the method.
public string GenerateSQLInsertScripts() {
var outputQuery = new StringBuilder();
var tableName = "Your Table Name";
if (file != null)
{
var filePath = @"D:\FileName.xsls";
using (OfficeOpenXml.ExcelPackage xlPackage = new OfficeOpenXml.ExcelPackage(new FileInfo(filePath)))
{
var myWorksheet = xlPackage.Workbook.Worksheets.First(); //select the first sheet here
var totalRows = myWorksheet.Dimension.End.Row;
var totalColumns = myWorksheet.Dimension.End.Column;
var columns = new StringBuilder(); //this is your columns
var columnRows = myWorksheet.Cells[1, 1, 1, totalColumns].Select(c => c.Value == null ? string.Empty : c.Value.ToString());
columns.Append("INSERT INTO["+ tableName +"] (");
foreach (var colrow in columnRows)
{
columns.Append("[");
columns.Append(colrow);
columns.Append("]");
columns.Append(",");
}
columns.Length--;
columns.Append(") VALUES (");
for (int rowNum = 2; rowNum <= totalRows; rowNum++) //selet starting row here
{
var dataRows = myWorksheet.Cells[rowNum, 1, rowNum, totalColumns].Select(c => c.Value == null ? string.Empty : c.Value.ToString());
var finalQuery = new StringBuilder();
finalQuery.Append(columns);
foreach (var dataRow in dataRows)
{
finalQuery.Append("'");
finalQuery.Append(dataRow);
finalQuery.Append("'");
finalQuery.Append(",");
}
finalQuery.Length--;
finalQuery.Append(");");
outputQuery.Append(finalQuery);
}
}
}
return outputQuery.ToString();}
I had the same problem and I prefer not to replace the entire ArrayAdapter with a new instance continuously. Thus I have the AdapterHelper do the heavy lifting somewhere else.
Add this where you would normally (try to) call notify
new AdapterHelper().update((ArrayAdapter)adapter, new ArrayList<Object>(yourArrayList));
adapter.notifyDataSetChanged();
AdapterHelper class
public class AdapterHelper {
@SuppressWarnings({ "rawtypes", "unchecked" })
public void update(ArrayAdapter arrayAdapter, ArrayList<Object> listOfObject){
arrayAdapter.clear();
for (Object object : listOfObject){
arrayAdapter.add(object);
}
}
}
The first bin in the FFT is DC (0 Hz), the second bin is Fs / N
, where Fs
is the sample rate and N
is the size of the FFT. The next bin is 2 * Fs / N
. To express this in general terms, the nth bin is n * Fs / N
.
So if your sample rate, Fs
is say 44.1 kHz and your FFT size, N
is 1024, then the FFT output bins are at:
0: 0 * 44100 / 1024 = 0.0 Hz
1: 1 * 44100 / 1024 = 43.1 Hz
2: 2 * 44100 / 1024 = 86.1 Hz
3: 3 * 44100 / 1024 = 129.2 Hz
4: ...
5: ...
...
511: 511 * 44100 / 1024 = 22006.9 Hz
Note that for a real input signal (imaginary parts all zero) the second half of the FFT (bins from N / 2 + 1
to N - 1
) contain no useful additional information (they have complex conjugate symmetry with the first N / 2 - 1
bins). The last useful bin (for practical aplications) is at N / 2 - 1
, which corresponds to 22006.9 Hz in the above example. The bin at N / 2
represents energy at the Nyquist frequency, i.e. Fs / 2
( = 22050 Hz in this example), but this is in general not of any practical use, since anti-aliasing filters will typically attenuate any signals at and above Fs / 2
.
You don't need to use JsonObject
. You should be using Gson to convert to/from JSON strings and your own Java objects.
See the Gson User Guide:
(Serialization)
Gson gson = new Gson(); gson.toJson(1); // prints 1 gson.toJson("abcd"); // prints "abcd" gson.toJson(new Long(10)); // prints 10 int[] values = { 1 }; gson.toJson(values); // prints [1]
(Deserialization)
int one = gson.fromJson("1", int.class); Integer one = gson.fromJson("1", Integer.class); Long one = gson.fromJson("1", Long.class); Boolean false = gson.fromJson("false", Boolean.class); String str = gson.fromJson("\"abc\"", String.class); String anotherStr = gson.fromJson("[\"abc\"]", String.class)
Just a simple folder drill down.
sub sample()
Dim FileSystem As Object
Dim HostFolder As String
HostFolder = "C:\"
Set FileSystem = CreateObject("Scripting.FileSystemObject")
DoFolder FileSystem.GetFolder(HostFolder)
end sub
Sub DoFolder(Folder)
Dim SubFolder
For Each SubFolder In Folder.SubFolders
DoFolder SubFolder
Next
Dim File
For Each File In Folder.Files
' Operate on each file
Next
End Sub
This is long detailed explanation. I hope this will help the beginners. I will make it very simple.
First, let's create a class
<?php
class Class1
{
}
You can omit the php closing tag ?>
if you are using php code only.
Now let's add properties and a method inside Class1
.
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
return "I am Method 1";
}
}
The property is just a simple variable , but we give it the name property cuz its inside a class.
The method is just a simple function , but we say method cuz its also inside a class.
The public
keyword mean that the method or a property can be accessed anywhere in the script.
Now, how we can use the properties and the method inside Class1
?
The answer is creating an instance or an object, think of an object as a copy of the class.
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
return "I am Method 1";
}
}
$object1 = new Class1;
var_dump($object1);
We created an object, which is $object1
, which is a copy of Class1
with all its contents. And we dumped all the contents of $object1
using var_dump()
.
This will give you
object(Class1)#1 (2) { ["property1"]=> string(15) "I am property 1" ["property2"]=> string(15) "I am property 2" }
So all the contents of Class1
are in $object1
, except Method1
, i don't know why methods doesn't show while dumping objects.
Now what if we want to access $property1
only. Its simple , we do var_dump($object1->property1);
, we just added ->property1
, we pointed to it.
we can also access Method1()
, we do var_dump($object1->Method1());
.
Now suppose i want to access $property1
from inside Method1()
, i will do this
<?php
class Class1
{
public $property1 = "I am property 1";
public $property2 = "I am property 2";
public function Method1()
{
$object2 = new Class1;
return $object2->property1;
}
}
$object1 = new Class1;
var_dump($object1->Method1());
we created $object2 = new Class1;
which is a new copy of Class1
or we can say an instance. Then we pointed to property1
from $object2
return $object2->property1;
This will print string(15) "I am property 1"
in the browser.
Now instead of doing this inside Method1()
$object2 = new Class1;
return $object2->property1;
We do this
return $this->property1;
The $this
object is used inside the class to refer to the class itself.
It is an alternative for creating new object and then returning it like this
$object2 = new Class1;
return $object2->property1;
Another example
<?php
class Class1
{
public $property1 = 119;
public $property2 = 666;
public $result;
public function Method1()
{
$this->result = $this->property1 + $this->property2;
return $this->result;
}
}
$object1 = new Class1;
var_dump($object1->Method1());
We created 2 properties containing integers and then we added them and put the result in $this->result
.
Do not forget that
$this->property1
= $property1
= 119
they have that same value .. etc
I hope that explains the idea.
This series of videos will help you a lot in OOP
https://www.youtube.com/playlist?list=PLe30vg_FG4OSEHH6bRF8FrA7wmoAMUZLv
With Java 8:
List<String> stringList = Pattern.compile("-")
.splitAsStream("004-034556")
.collect(Collectors.toList());
stringList.forEach(s -> System.out.println(s));
Yes, there is. The -r
option tells rm
to be recursive, and remove the entire file hierarchy rooted at its arguments; in other words, if given a directory, it will remove all of its contents and then perform what is effectively an rmdir
.
The other two options you should know are -i
and -f
. -i
stands for interactive; it makes rm
prompt you before deleting each and every file. -f
stands for force; it goes ahead and deletes everything without asking. -i
is safer, but -f
is faster; only use it if you're absolutely sure you're deleting the right thing. You can specify these with -r
or not; it's an independent setting.
And as usual, you can combine switches: rm -r -i
is just rm -ri
, and rm -r -f
is rm -rf
.
Also note that what you're learning applies to bash
on every Unix OS: OS X, Linux, FreeBSD, etc. In fact, rm
's syntax is the same in pretty much every shell on every Unix OS. OS X, under the hood, is really a BSD Unix system.
A very detailed and analytic discussion on the topic is available on THIS page
It has the example codes and the pros/cons of different options.
struct Connectivity {
static let sharedInstance = NetworkReachabilityManager()!
static var isConnectedToInternet:Bool {
return self.sharedInstance.isReachable
}
}
Now call it
if Connectivity.isConnectedToInternet{
call_your_methods_here()
} else{
show_alert_for_noInternet()
}
In My case (Using Javascript insidde Razor) This worked perfectly inside an Foreach loop
google.maps.event.addListener(marker, 'click', function() {
marker.info.open(map, this);
});
As shown below, range
only supports integers:
>>> range(15.0)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: range() integer end argument expected, got float.
>>> range(15)
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14]
>>>
However, c/10
is a float because /
always returns a float.
Before you put it in range
, you need to make c/10
an integer. This can be done by putting it in int
:
range(int(c/10))
or by using //
, which returns an integer:
range(c//10)
Your syntax isn't quite right: you need to list the fields in order before the INTO, and the corresponding target variables after:
SELECT Id, dateCreated
INTO iId, dCreate
FROM products
WHERE pName = iName
NumberFormat.getNumberInstance(java.util.Locale.US).format(num);
p*.dat
or something like that (like in old' dos)you could also :browse confirm e (for a graphical window)
but you should also probably specify what vim version you're using, and how that thing in emacs works. Maybe we could find you an exact vim alternative.
What could be easier than something like this:
import tempfile
for i in range(400):
with tempfile.TemporaryFile() as tf:
for j in range(1000):
tf.write('Line {} of file {}'.format(j,i))
That creates 400 temp files and writes 1000 lines to each temp file. It executes in less than 1/2 second on my unremarkable machine. Each temp file of the total is created and deleted as the context manager opens and closes in this case. It is fast, secure, and cross platform.
Using tempfile is a lot better than trying to reinvent it.
It's not at all related to "tidyr" and "dplyr", but here's another option to consider: merged.stack
from my "splitstackshape" package, V1.4.0 and above.
library(splitstackshape)
merged.stack(df, id.vars = c("id", "time"),
var.stubs = c("Q3.2.", "Q3.3."),
sep = "var.stubs")
# id time .time_1 Q3.2. Q3.3.
# 1: 1 2009-01-01 1. -0.62645381 1.35867955
# 2: 1 2009-01-01 2. 1.51178117 -0.16452360
# 3: 1 2009-01-01 3. 0.91897737 0.39810588
# 4: 2 2009-01-02 1. 0.18364332 -0.10278773
# 5: 2 2009-01-02 2. 0.38984324 -0.25336168
# 6: 2 2009-01-02 3. 0.78213630 -0.61202639
# 7: 3 2009-01-03 1. -0.83562861 0.38767161
# <<:::SNIP:::>>
# 24: 8 2009-01-08 3. -1.47075238 -1.04413463
# 25: 9 2009-01-09 1. 0.57578135 1.10002537
# 26: 9 2009-01-09 2. 0.82122120 -0.11234621
# 27: 9 2009-01-09 3. -0.47815006 0.56971963
# 28: 10 2009-01-10 1. -0.30538839 0.76317575
# 29: 10 2009-01-10 2. 0.59390132 0.88110773
# 30: 10 2009-01-10 3. 0.41794156 -0.13505460
# id time .time_1 Q3.2. Q3.3.
With typescript we can leverage type aliases, like so:
type KeyboardEvent = {
target: HTMLInputElement,
key: string,
};
const onKeyPress = (e: KeyboardEvent) => {
if ('Enter' === e.key) { // Enter keyboard was pressed!
submit(e.target.value);
e.target.value = '';
return;
}
// continue handle onKeyPress input events...
};
sed -e '8iProject_Name=sowstest' -i start
using GNU sed
Sample run:
[root@node23 ~]# for ((i=1; i<=10; i++)); do echo "Line #$i"; done > a_file
[root@node23 ~]# cat a_file
Line #1
Line #2
Line #3
Line #4
Line #5
Line #6
Line #7
Line #8
Line #9
Line #10
[root@node23 ~]# sed -e '3ixxx inserted line xxx' -i a_file
[root@node23 ~]# cat -An a_file
1 Line #1$
2 Line #2$
3 xxx inserted line xxx$
4 Line #3$
5 Line #4$
6 Line #5$
7 Line #6$
8 Line #7$
9 Line #8$
10 Line #9$
11 Line #10$
[root@node23 ~]#
[root@node23 ~]# sed -e '5ixxx (inserted) "line" xxx' -i a_file
[root@node23 ~]# cat -n a_file
1 Line #1
2 Line #2
3 xxx inserted line xxx
4 Line #3
5 xxx (inserted) "line" xxx
6 Line #4
7 Line #5
8 Line #6
9 Line #7
10 Line #8
11 Line #9
12 Line #10
[root@node23 ~]#
If you are using lodash or npm
, use lodash's merge function to deep copy all of the object's properties to a new empty object like so:
var objectCopy = lodash.merge({}, originalObject);
In addition to the other answers, the fmod
documentation has some interesting things to say on the subject:
math.fmod(x, y)
Return
fmod(x, y)
, as defined by the platform C library. Note that the Python expressionx % y
may not return the same result. The intent of the C standard is thatfmod(x, y)
be exactly (mathematically; to infinite precision) equal tox - n*y
for some integer n such that the result has the same sign asx
and magnitude less thanabs(y)
. Python’sx % y
returns a result with the sign ofy
instead, and may not be exactly computable for float arguments. For example,fmod(-1e-100, 1e100)
is-1e-100
, but the result of Python’s-1e-100 % 1e100
is1e100-1e-100
, which cannot be represented exactly as a float, and rounds to the surprising1e100
. For this reason, functionfmod()
is generally preferred when working with floats, while Python’sx % y
is preferred when working with integers.
Happens mostly when you have multiple versions of pgadmin installed or while trying to upgrade. Even I tried everything from killing the "running PID on port 5432" to "changing the server mode". In my case I uninstall postgres and re-install it again on different port(5433). Later, I opened it through cmd(right click on cmd and select "run cmd as an Administrator").
Add this line to your method, If you are using a API.
HttpContext.Current.Response.AddHeader("Access-Control-Allow-Origin", "*");
Len(word)
Although that's not what your question title asks =)
Couldn't find any official documentation (no surprise there) but according to this interesting article, those elements are injected in order to enable Word to convert the HTML back to fully compatible Word document, with everything preserved.
The relevant paragraph:
Microsoft added the special tags to Word's HTML with an eye toward backward compatibility. Microsoft wanted you to be able to save files in HTML complete with all of the tracking, comments, formatting, and other special Word features found in traditional DOC files. If you save a file in HTML and then reload it in Word, theoretically you don't loose anything at all.
This makes lots of sense.
For your specific question.. the o
in the <o:p>
means "Office namespace" so anything following the o:
in a tag means "I'm part of Office namespace" - in case of <o:p>
it just means paragraph, the equivalent of the ordinary <p>
tag.
I assume that every HTML tag has its Office "equivalent" and they have more.
An alternative way to (not dynamically) link a text to activate a worksheet without macros is to make the selected string an actual link. You can do this by selecting the cell that contains the text and press CTRL+K then select the option/tab 'Place in this document' and select the tab you want to activate. If you would click the text (that is now a link) the configured sheet will become active/selected.
please set dataType config property in your ajax call and give it another try!
another point is you are using ajax call setup configuration properties as string and it is wrong as reference site
$.ajax({
url : 'http://voicebunny.comeze.com/index.php',
type : 'GET',
data : {
'numberOfWords' : 10
},
dataType:'json',
success : function(data) {
alert('Data: '+data);
},
error : function(request,error)
{
alert("Request: "+JSON.stringify(request));
}
});
I hope be helpful!
I guess this would only work if the directory is fairly static and its contents don't change between the execution of the two dir commands. Maybe a way to combine this into one command to avoid that, but this worked for my purpose (I didn't want the full listing; just the summary).
GetDirSummary.bat Script:
@echo off
rem get total number of lines from dir output
FOR /F "delims=" %%i IN ('dir /S %1 ^| find "asdfasdfasdf" /C /V') DO set lineCount=%%i
rem dir summary is always last 3 lines; calculate starting line of summary info
set /a summaryStart="lineCount-3"
rem now output just the last 3 lines
dir /S %1 | more +%summaryStart%
Usage:
GetDirSummary.bat c:\temp
Output:
Total Files Listed:
22 File(s) 63,600 bytes
8 Dir(s) 104,350,330,880 bytes free
usually i don't use for loop in R, but here is my solution using for loops and two packages : plyr and dostats
plyr is on cran and you can download dostats on https://github.com/halpo/dostats (may be using install_github from Hadley devtools package)
Assuming that i have your first two data.frame (Df.1 and Df.2) in csv files, you can do something like this.
require(plyr)
require(dostats)
files <- list.files(pattern = ".csv")
for (i in seq_along(files)) {
assign(paste("Df", i, sep = "."), read.csv(files[i]))
assign(paste(paste("Df", i, sep = ""), "summary", sep = "."),
ldply(get(paste("Df", i, sep = ".")), dostats, sum, min, mean, median, max))
}
Here is the output
R> Df1.summary
.id sum min mean median max
1 A 34 4 5.6667 5.5 8
2 B 22 1 3.6667 3.0 9
R> Df2.summary
.id sum min mean median max
1 A 21 1 3.5000 3.5 6
2 B 16 1 2.6667 2.5 5
This expands on Paul's answer. In Pandas, indexing a DataFrame returns a reference to the initial DataFrame. Thus, changing the subset will change the initial DataFrame. Thus, you'd want to use the copy if you want to make sure the initial DataFrame shouldn't change. Consider the following code:
df = DataFrame({'x': [1,2]})
df_sub = df[0:1]
df_sub.x = -1
print(df)
You'll get:
x
0 -1
1 2
In contrast, the following leaves df unchanged:
df_sub_copy = df[0:1].copy()
df_sub_copy.x = -1
Replacing substrings should not be that hard.
std::string ReplaceString(std::string subject, const std::string& search,
const std::string& replace) {
size_t pos = 0;
while((pos = subject.find(search, pos)) != std::string::npos) {
subject.replace(pos, search.length(), replace);
pos += replace.length();
}
return subject;
}
If you need performance, here is an optimized function that modifies the input string, it does not create a copy of the string:
void ReplaceStringInPlace(std::string& subject, const std::string& search,
const std::string& replace) {
size_t pos = 0;
while((pos = subject.find(search, pos)) != std::string::npos) {
subject.replace(pos, search.length(), replace);
pos += replace.length();
}
}
Tests:
std::string input = "abc abc def";
std::cout << "Input string: " << input << std::endl;
std::cout << "ReplaceString() return value: "
<< ReplaceString(input, "bc", "!!") << std::endl;
std::cout << "ReplaceString() input string not changed: "
<< input << std::endl;
ReplaceStringInPlace(input, "bc", "??");
std::cout << "ReplaceStringInPlace() input string modified: "
<< input << std::endl;
Output:
Input string: abc abc def
ReplaceString() return value: a!! a!! def
ReplaceString() input string not modified: abc abc def
ReplaceStringInPlace() input string modified: a?? a?? def
Very close! In your select
expression, you have to use a pipe (|
) before contains
.
This filter produces the expected output.
. - map(select(.Names[] | contains ("data"))) | .[] .Id
The jq Cookbook has an example of the syntax.
Filter objects based on the contents of a key
E.g., I only want objects whose genre key contains "house".
$ json='[{"genre":"deep house"}, {"genre": "progressive house"}, {"genre": "dubstep"}]' $ echo "$json" | jq -c '.[] | select(.genre | contains("house"))' {"genre":"deep house"} {"genre":"progressive house"}
Colin D asks how to preserve the JSON structure of the array, so that the final output is a single JSON array rather than a stream of JSON objects.
The simplest way is to wrap the whole expression in an array constructor:
$ echo "$json" | jq -c '[ .[] | select( .genre | contains("house")) ]'
[{"genre":"deep house"},{"genre":"progressive house"}]
You can also use the map function:
$ echo "$json" | jq -c 'map(select(.genre | contains("house")))'
[{"genre":"deep house"},{"genre":"progressive house"}]
map unpacks the input array, applies the filter to every element, and creates a new array. In other words, map(f)
is equivalent to [.[]|f]
.
using System.Diagnostics;
The following will print to your output as long as the dropdown is set to 'Debug' as shown below.
Debug.WriteLine("Hello, world!");
$ThatTime ="14:08:10";
if (time() >= strtotime($ThatTime)) {
echo "ok";
}
A solution using DateTime
(that also regards the timezone).
$dateTime = new DateTime($ThatTime);
if ($dateTime->diff(new DateTime)->format('%R') == '+') {
echo "OK";
}
Hope this will help you a little what I have learned in oops (core java) during my college.
Implements denotes defining an implementation for the methods of an interface. However interfaces have no implementation so that's not possible. An interface can however extend another interface, which means it can add more methods and inherit its type.
Here is an example below, this is my understanding and what I have learnt in oops.
interface ParentInterface{
void myMethod();
}
interface SubInterface extends ParentInterface{
void anotherMethod();
}
and keep one thing in a mind one interface can only extend another interface and if you want to define it's function on some class then only a interface in implemented eg below
public interface Dog
{
public boolean Barks();
public boolean isGoldenRetriever();
}
Now, if a class were to implement this interface, this is what it would look like:
public class SomeClass implements Dog
{
public boolean Barks{
// method definition here
}
public boolean isGoldenRetriever{
// method definition here
}
}
and if a abstract class has some abstract function define and declare and you want to define those function or you can say implement those function then you suppose to extends that class because abstract class can only be extended. here is example below.
public abstract class MyAbstractClass {
public abstract void abstractMethod();
}
Here is an example subclass of MyAbstractClass:
public class MySubClass extends MyAbstractClass {
public void abstractMethod() {
System.out.println("My method implementation");
}
}
You can create fully custom spinner design like as
Step1: In drawable folder make background.xml for a border of the spinner.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="@android:color/transparent" />
<corners android:radius="5dp" />
<stroke
android:width="1dp"
android:color="@android:color/darker_gray" />
</shape>
Step2: for layout design of spinner use this drop-down icon or any image drop.png
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginRight="3dp"
android:layout_weight=".28"
android:background="@drawable/spinner_border"
android:orientation="horizontal">
<Spinner
android:id="@+id/spinner2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:background="@android:color/transparent"
android:gravity="center"
android:layout_marginLeft="5dp"
android:spinnerMode="dropdown" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_gravity="center"
android:src="@mipmap/drop" />
</RelativeLayout>
Finally looks like below image and it is everywhere clickable in round area and no need to write click Lister for imageView.
Step3: For drop-down design, remove the line from Dropdown ListView and change the background color, Create custom adapter like as
Spinner spinner = (Spinner) findViewById(R.id.spinner1);
String[] years = {"1996","1997","1998","1998"};
ArrayAdapter<CharSequence> langAdapter = new ArrayAdapter<CharSequence>(getActivity(), R.layout.spinner_text, years );
langAdapter.setDropDownViewResource(R.layout.simple_spinner_dropdown);
mSpinner5.setAdapter(langAdapter);
In layout folder create R.layout.spinner_text.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layoutDirection="ltr"
android:id="@android:id/text1"
style="@style/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:paddingLeft="2dp"
/>
In layout folder create simple_spinner_dropdown.xml
<?xml version="1.0" encoding="utf-8"?>
<CheckedTextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="@style/spinnerDropDownItemStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:paddingBottom="5dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="5dp"
android:singleLine="true" />
In styles, you can add custom dimensions and height as per your requirement.
<style name="spinnerItemStyle" parent="android:Widget.TextView.SpinnerItem">
</style>
<style name="spinnerDropDownItemStyle" parent="android:TextAppearance.Widget.TextView.SpinnerItem">
</style>
Finally looks like as
According to the requirement, you can change background color and text of drop-down color by changing the background color or text color of simple_spinner_dropdown.xml
How about defining your own view? I have used the class below, using a LinearLayout around a view whose background color is set. This allows me to pre-define layout parameters for it. If you don't need that just extend View and set the background color instead.
public class HorizontalRulerView extends LinearLayout {
static final int COLOR = Color.DKGRAY;
static final int HEIGHT = 2;
static final int VERTICAL_MARGIN = 10;
static final int HORIZONTAL_MARGIN = 5;
static final int TOP_MARGIN = VERTICAL_MARGIN;
static final int BOTTOM_MARGIN = VERTICAL_MARGIN;
static final int LEFT_MARGIN = HORIZONTAL_MARGIN;
static final int RIGHT_MARGIN = HORIZONTAL_MARGIN;
public HorizontalRulerView(Context context) {
this(context, null);
}
public HorizontalRulerView(Context context, AttributeSet attrs) {
this(context, attrs, android.R.attr.textViewStyle);
}
public HorizontalRulerView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
setOrientation(VERTICAL);
View v = new View(context);
v.setBackgroundColor(COLOR);
LayoutParams lp = new LayoutParams(
LayoutParams.MATCH_PARENT,
HEIGHT
);
lp.topMargin = TOP_MARGIN;
lp.bottomMargin = BOTTOM_MARGIN;
lp.leftMargin = LEFT_MARGIN;
lp.rightMargin = RIGHT_MARGIN;
addView(v, lp);
}
}
Use it programmatically or in Eclipse (Custom & Library Views -- just pull it into your layout).
The best option is prepared statements. Messing around with quotes and escapes is harder work to begin with, and difficult to maintain. Sooner or later you will end up accidentally forgetting to quote something or end up escaping the same string twice, or mess up something like that. Might be years before you find those type of bugs.
An alternative to the answer of asselin for use with ES2015 classes
class InvalidArgumentException extends Error {
constructor(message) {
super();
Error.captureStackTrace(this, this.constructor);
this.name = "InvalidArgumentException";
this.message = message;
}
}
I just love getting information like BalusC gives here - and he is kind enough to help SO many people with such GOOD information that I regard his words as gospel, but I was not able to use that order of events to solve this same kind of timing issue in my project. Since BalusC put a great general reference here that I even bookmarked, I thought I would donate my solution for some advanced timing issues in the same place since it does solve the original poster's timing issues as well. I hope this code helps someone:
<p:pickList id="formPickList"
value="#{mediaDetail.availableMedia}"
converter="MediaPicklistConverter"
widgetVar="formsPicklistWidget"
var="mediaFiles"
itemLabel="#{mediaFiles.mediaTitle}"
itemValue="#{mediaFiles}" >
<f:facet name="sourceCaption">Available Media</f:facet>
<f:facet name="targetCaption">Chosen Media</f:facet>
</p:pickList>
<p:commandButton id="viewStream_btn"
value="Stream chosen media"
icon="fa fa-download"
ajax="true"
action="#{mediaDetail.prepareStreams}"
update=":streamDialogPanel"
oncomplete="PF('streamingDialog').show()"
styleClass="ui-priority-primary"
style="margin-top:5px" >
<p:ajax process="formPickList" />
</p:commandButton>
The dialog is at the top of the XHTML outside this form and it has a form of its own embedded in the dialog along with a datatable which holds additional commands for streaming the media that all needed to be primed and ready to go when the dialog is presented. You can use this same technique to do things like download customized documents that need to be prepared before they are streamed to the user's computer via fileDownload buttons in the dialog box as well.
As I said, this is a more complicated example, but it hits all the high points of your problem and mine. When the command button is clicked, the result is to first insure the backing bean is updated with the results of the pickList, then tell the backing bean to prepare streams for the user based on their selections in the pick list, then update the controls in the dynamic dialog with an update, then show the dialog box ready for the user to start streaming their content.
The trick to it was to use BalusC's order of events for the main commandButton and then to add the <p:ajax process="formPickList" />
bit to ensure it was executed first - because nothing happens correctly unless the pickList updated the backing bean first (something that was not happening for me before I added it). So, yea, that commandButton rocks because you can affect previous, pending and current components as well as the backing beans - but the timing to interrelate all of them is not easy to get a handle on sometimes.
Happy coding!
Use stream_context_set_default
function. It is much easier to use as you can directly use file_get_contents or similar functions without passing any additional parameters
This blog post explains how to use it. Here is the code from that page.
<?php
// Edit the four values below
$PROXY_HOST = "proxy.example.com"; // Proxy server address
$PROXY_PORT = "1234"; // Proxy server port
$PROXY_USER = "LOGIN"; // Username
$PROXY_PASS = "PASSWORD"; // Password
// Username and Password are required only if your proxy server needs basic authentication
$auth = base64_encode("$PROXY_USER:$PROXY_PASS");
stream_context_set_default(
array(
'http' => array(
'proxy' => "tcp://$PROXY_HOST:$PROXY_PORT",
'request_fulluri' => true,
'header' => "Proxy-Authorization: Basic $auth"
// Remove the 'header' option if proxy authentication is not required
)
)
);
$url = "http://www.pirob.com/";
print_r( get_headers($url) );
echo file_get_contents($url);
?>
DroidDraw seems to be very useful. It has a clean and easy interface and it is a freeware. Available for Windows, Linux and Mac OS X. I advice a donation.
If you don't like it, you should take a look at this site. There are some other options and other useful tools.
If you don't have a .gitignore file. You can create a new one by
touch .gitignore
And you can exclude a folder by entering the below command in the .gitignore file
/folderName
push this file into your git repository so that when a new person clone your project he don't have to add the same again
For checking for a time of day use:
TimeSpan start = new TimeSpan(10, 0, 0); //10 o'clock
TimeSpan end = new TimeSpan(12, 0, 0); //12 o'clock
TimeSpan now = DateTime.Now.TimeOfDay;
if ((now > start) && (now < end))
{
//match found
}
For absolute times use:
DateTime start = new DateTime(2009, 12, 9, 10, 0, 0)); //10 o'clock
DateTime end = new DateTime(2009, 12, 10, 12, 0, 0)); //12 o'clock
DateTime now = DateTime.Now;
if ((now > start) && (now < end))
{
//match found
}
You can try this also:
private void Page_Loaded_1(object sender, RoutedEventArgs e)
{
Uri iconUri = new Uri(@"C:\Apps\R&D\WPFNavigation\WPFNavigation\Images\airport.ico", UriKind.RelativeOrAbsolute);
(this.Parent as Window).Icon = BitmapFrame.Create(iconUri);
}
package will generate Jar/war as per POM file. install will install generated jar file to the local repository for other dependencies if any.
install phase comes after package phase
No need to use grep. ps
in Android can filter by COMM
value (last 15 characters of the package name in case of java app)
Let's say we want to check if com.android.phone
is running:
adb shell ps m.android.phone
USER PID PPID VSIZE RSS WCHAN PC NAME
radio 1389 277 515960 33964 ffffffff 4024c270 S com.android.phone
Filtering by COMM
value option has been removed from ps
in Android 7.0. To check for a running process by name in Android 7.0 you can use pidof
command:
adb shell pidof com.android.phone
It returns the PID if such process was found or an empty string otherwise.
Simpler yet:
idx = (-arr).argsort()[:n]
where n is the number of maximum values.
The delete
operator allows you to remove a property from an object.
The following examples all do the same thing.
// Example 1
var key = "Cow";
delete thisIsObject[key];
// Example 2
delete thisIsObject["Cow"];
// Example 3
delete thisIsObject.Cow;
If you're interested, read Understanding Delete for an in-depth explanation.
You're synchronizing twice, which is pointless and possibly slows down the code: changes while iterating over the list need a synchronnization over the entire operation, which you are doing with synchronized (in_queue_list)
Using Collections.synchronizedList()
is superfluous in that case (it creates a wrapper that synchronizes individual operations).
However, since you are emptying the list completely, the iterated removal of the first element is the worst possible way to do it, sice for each element all following elements have to be copied, making this an O(n^2) operation - horribly slow for larger lists.
Instead, simply call clear()
- no iteration needed.
Edit:
If you need the single-method synchronization of Collections.synchronizedList()
later on, then this is the correct way:
List<Record> in_queue_list = Collections.synchronizedList(in_queue);
in_queue_list.clear(); // synchronized implicitly,
But in many cases, the single-method synchronization is insufficient (e.g. for all iteration, or when you get a value, do computations based on it, and replace it with the result). In that case, you have to use manual synchronization anyway, so Collections.synchronizedList()
is just useless additional overhead.
I'm going to answer my own question.
Therefore, the following works for me
$qb->select('c')
->innerJoin('c.phones', 'p', 'WITH', 'p.phone = :phone')
->where('c.username = :username');
or
$qb->select('c')
->innerJoin('c.phones', 'p', Join::WITH, $qb->expr()->eq('p.phone', ':phone'))
->where('c.username = :username');
Atleast it is not mandatory in Java. According to JLS, it says atmost one default case can be present. Which means no default case is acceptable . It at times also depends on the context that you are using the switch statement. For example in Java, the following switch block does not require default case
private static void switch1(String name) {
switch (name) {
case "Monday":
System.out.println("Monday");
break;
case "Tuesday":
System.out.println("Tuesday");
break;
}
}
But in the following method which expects to return a String, default case comes handy to avoid compilation errors
private static String switch2(String name) {
switch (name) {
case "Monday":
System.out.println("Monday");
return name;
case "Tuesday":
System.out.println("Tuesday");
return name;
default:
return name;
}
}
though you can avoid compilation error for the above method without having default case by just having a return statement at the end, but providing default case makes it more readable.
DTO
is an abbreviation for Data Transfer Object, so it is used to transfer the data between classes and modules of your application.
DTO
should only contain private fields for your data, getters, setters, and constructors.DTO
is not recommended to add business logic methods to such classes, but it is OK to add some util methods.DAO
is an abbreviation for Data Access Object, so it should encapsulate the logic for retrieving, saving and updating data in your data storage (a database, a file-system, whatever).
Here is an example of how the DAO and DTO interfaces would look like:
interface PersonDTO {
String getName();
void setName(String name);
//.....
}
interface PersonDAO {
PersonDTO findById(long id);
void save(PersonDTO person);
//.....
}
The MVC
is a wider pattern. The DTO/DAO would be your model in the MVC pattern.
It tells you how to organize the whole application, not just the part responsible for data retrieval.
As for the second question, if you have a small application it is completely OK, however, if you want to follow the MVC pattern it would be better to have a separate controller, which would contain the business logic for your frame in a separate class and dispatch messages to this controller from the event handlers.
This would separate your business logic from the view.
You mean fast enumeration? You question is very unclear.
A normal for loop would look a bit like this:
unsigned int i, cnt = [someArray count];
for(i = 0; i < cnt; i++)
{
// do loop stuff
id someObject = [someArray objectAtIndex:i];
}
And a loop with fast enumeration, which is optimized by the compiler, would look like this:
for(id someObject in someArray)
{
// do stuff with object
}
Keep in mind that you cannot change the array you are using in fast enumeration, thus no deleting nor adding when using fast enumeration
There is no installation required. Just add jQuery to your application folder and give a reference to the js file.
<script type="text/javascript" src="jQuery.js"></script>
if jQuery is in the same folder of your referenced file.
I have come up with two statements that can divide positive and negative numbers into integers and fractions without compromising accuracy (bit overflow) and speed.
x = 100.1323 # A number to be divided into integers and fractions
# The two statement to divided a number into integers and fractions
i = int(x) # A positive or negative integer
f = (x*1e17-i*1e17)/1e17 # A positive or negative fraction
E.g. 100.1323
-> 100
, 0.1323
or -100.1323
-> -100
, -0.1323
Speedtest
The performance test shows that the two statements are faster than math.modf
, as long as they are not put into their own function or method.
test.py
:
#!/usr/bin/env python
import math
import cProfile
""" Get the performance of both statements and math.modf. """
X = -100.1323 # The number to be divided into integers and fractions
LOOPS = range(5*10**6) # Number of loops
def scenario_a():
""" The integers (i) and the fractions (f)
come out as integer and float. """
for _ in LOOPS:
i = int(X) # -100
f = (X*1e17-i*1e17)/1e17 # -0.1323
def scenario_b():
""" The integers (i) and the fractions (f)
come out as float.
NOTE: The only difference between this
and math.modf is the accuracy. """
for _ in LOOPS:
i = int(X) # -100
i, f = float(i), (X*1e17-i*1e17)/1e17 # (-100.0, -0.1323)
def scenario_c():
""" Performance test of the statements in a function. """
def modf(x):
i = int(x)
return i, (x*1e17-i*1e17)/1e17
for _ in LOOPS:
i, f = modf(X) # (-100, -0.1323)
def scenario_d():
for _ in LOOPS:
f, i = math.modf(X) # (-100.0, -0.13230000000000075)
def scenario_e():
""" Convert the integer part to real integer. """
for _ in LOOPS:
f, i = math.modf(X) # (-100.0, -0.13230000000000075)
i = int(i) # -100
if __name__ == '__main__':
cProfile.run('scenario_a()')
cProfile.run('scenario_b()')
cProfile.run('scenario_c()')
cProfile.run('scenario_d()')
cProfile.run('scenario_e()')
Output:
4 function calls in 1.312 seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 1.312 1.312 <string>:1(<module>)
1 1.312 1.312 1.312 1.312 test.py:10(scenario_a)
1 0.000 0.000 1.312 1.312 {built-in method builtins.exec}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}
4 function calls in 1.887 seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 1.887 1.887 <string>:1(<module>)
1 1.887 1.887 1.887 1.887 test.py:18(scenario_b)
1 0.000 0.000 1.887 1.887 {built-in method builtins.exec}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}
5000004 function calls in 2.797 seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 2.797 2.797 <string>:1(<module>)
1 1.261 1.261 2.797 2.797 test.py:27(scenario_c)
5000000 1.536 0.000 1.536 0.000 test.py:31(modf)
1 0.000 0.000 2.797 2.797 {built-in method builtins.exec}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}
5000004 function calls in 1.852 seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 1.852 1.852 <string>:1(<module>)
1 1.050 1.050 1.852 1.852 test.py:38(scenario_d)
1 0.000 0.000 1.852 1.852 {built-in method builtins.exec}
5000000 0.802 0.000 0.802 0.000 {built-in method math.modf}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}
5000004 function calls in 2.467 seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 2.467 2.467 <string>:1(<module>)
1 1.652 1.652 2.467 2.467 test.py:42(scenario_e)
1 0.000 0.000 2.467 2.467 {built-in method builtins.exec}
5000000 0.815 0.000 0.815 0.000 {built-in method math.modf}
1 0.000 0.000 0.000 0.000 {method 'disable' of '_lsprof.Profiler' objects}
NOTE:
The statement can be faster with modulo, but modulo can not be used to split negative numbers into integer and fraction parts.
i, f = int(x), x*1e17%1e17/1e17 # x can not be negative
Please find below the code that generates automatically the content of the txt local file and display it html. Good luck!
<html>
<head>
<meta charset="utf-8">
<script type="text/javascript">
var x;
if(navigator.appName.search('Microsoft')>-1) { x = new ActiveXObject('MSXML2.XMLHTTP'); }
else { x = new XMLHttpRequest(); }
function getdata() {
x.open('get', 'data1.txt', true);
x.onreadystatechange= showdata;
x.send(null);
}
function showdata() {
if(x.readyState==4) {
var el = document.getElementById('content');
el.innerHTML = x.responseText;
}
}
</script>
</head>
<body onload="getdata();showdata();">
<div id="content"></div>
</body>
</html>
Use Java Decompiler to turn the jar file into source code file, and then use WinMerge to perform comparison.
You should consult the copyright holder of the source code, to see whether it is OK to do so.
You could also use the coalesce function. I tested this in PostgreSQL, but it should also work for MySQL or MS SQL server.
INNER JOIN x ON coalesce(x.qid, -1) = coalesce(y.qid, -1)
This will replace NULL
with -1
before evaluating it. Hence there must be no -1
in qid
.
Try this, its working in FF
body,
input,
select,
button {
font-family: Arial,Helvetica,sans-serif;
font-size: 14px;
}
Kinda late, but you need to access the original event, not the jQuery massaged one. Also, since these are multi-touch events, other changes need to be made:
$('#box').live('touchstart', function(e) {
var xPos = e.originalEvent.touches[0].pageX;
});
If you want other fingers, you can find them in other indices of the touches list.
UPDATE FOR NEWER JQUERY:
$(document).on('touchstart', '#box', function(e) {
var xPos = e.originalEvent.touches[0].pageX;
});
I would really opt for FlowPaper, especially their new Elements mode that can be found here : https://flowpaper.com/demo/
It flattens the PDFs significantly at the same time as keeping text sharp which means that it will load much faster on mobile devices
If sheet contains unused area on the top, UsedRange.Rows.Count
is not the maximum row.
This is the correct max row number.
maxrow = Sheets("..name..").UsedRange.Rows(Sheets("..name..").UsedRange.Rows.Count).Row
How about a dictionary list?
Dictionary<string, int> list = new Dictionary<string, int>();
foreach( var item in Enum.GetNames(typeof(MyEnum)) )
{
list.Add(item, (int)Enum.Parse(typeof(MyEnum), item));
}
and of course you can change the dictionary value type to whatever your enum values are.
there might be a problem at your web hosting company from where you are testing the secure communication for gateway, that they might not allow you to do that.
also there might be a username, password that must be provided before connecting to remote host.
or your IP might need to be in the list of approved IP for the remote server for communication to initiate.
When using promises they can be used in a promise chain. async=false will be deprecated so using promises is your best option.
function functABC() {
return new Promise(function(resolve, reject) {
$.ajax({
url: 'myPage.php',
data: {id: id},
success: function(data) {
resolve(data) // Resolve promise and go to then()
},
error: function(err) {
reject(err) // Reject the promise and go to catch()
}
});
});
}
functABC().then(function(data) {
// Run this when your request was successful
console.log(data)
}).catch(function(err) {
// Run this when promise was rejected via reject()
console.log(err)
})
To change this:
<TextView
android:text="My text"
android:background="@drawable/top_bottom_border"/>
I prefer this approach in "drawable/top_bottom_border.xml":
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape>
<gradient
android:angle="270"
android:startColor="#000"
android:centerColor="@android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
<item>
<shape>
<gradient
android:angle="90"
android:startColor="#000"
android:centerColor="@android:color/transparent"
android:centerX="0.01" />
</shape>
</item>
</layer-list>
This only makes the borders, not a rectangle that will appear if your background has a color.
You need to uncomment max_input_vars value in php.ini file and increase it (exp. 2000), also dont forget to restart your server this will help for 99,99%.
git checkout
modifies your working tree,git reset
modifies which reference the branch you're on points to,git revert
adds a commit undoing changes.This worked perfectly for me:
$ git reset -- foo/bar.txt
$ git checkout foo/bar.txt
By default hibernate lazily loads the collections (relationships) which means whenver you use the collection
in your code(here comments
field
in Topic
class)
the hibernate gets that from database, now the problem is that you are getting the collection in your controller (where the
JPA session is closed).This is the line of code that causes the exception
(where you are loading the comments
collection):
Collection<Comment> commentList = topicById.getComments();
You are getting "comments" collection (topic.getComments()) in your controller(where JPA session
has ended) and that causes the exception. Also if you had got
the comments
collection in your jsp file like this(instead of getting it in your controller):
<c:forEach items="topic.comments" var="item">
//some code
</c:forEach>
You would still have the same exception for the same reason.
Because you just can have only two collections with the FetchType.Eager
(eagerly fetched collection) in an Entity class and because lazy loading is more
efficient than eagerly loading, I think this way of solving your problem is better than just changing the FetchType
to eager:
If you want to have collection lazy initialized, and also make this work,
it is better to add this snippet of code to your web.xml
:
<filter>
<filter-name>SpringOpenEntityManagerInViewFilter</filter-name>
<filter-class>org.springframework.orm.jpa.support.OpenEntityManagerInViewFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>SpringOpenEntityManagerInViewFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
What this code does is that it will increase the length of your JPA session
or as the documentation says, it is used "to allow for lazy loading in web views despite the original transactions already being completed."
so
this way the JPA session will be open a bit longer and because of that
you can lazily load collections in your jsp files and controller classes.
I solved this by doing the following:
<body class="container-fluid">
<div class="row">
<div class="span6" style="float: none; margin: 0 auto;">
....
</div>
</div>
</body>
I adapt dave's answer, and add a recursive feature. I'm still working on a more user friendly version. For example, a number string in the map should be able to be converted to int in the struct.
package main
import (
"fmt"
"reflect"
)
func SetField(obj interface{}, name string, value interface{}) error {
structValue := reflect.ValueOf(obj).Elem()
fieldVal := structValue.FieldByName(name)
if !fieldVal.IsValid() {
return fmt.Errorf("No such field: %s in obj", name)
}
if !fieldVal.CanSet() {
return fmt.Errorf("Cannot set %s field value", name)
}
val := reflect.ValueOf(value)
if fieldVal.Type() != val.Type() {
if m,ok := value.(map[string]interface{}); ok {
// if field value is struct
if fieldVal.Kind() == reflect.Struct {
return FillStruct(m, fieldVal.Addr().Interface())
}
// if field value is a pointer to struct
if fieldVal.Kind()==reflect.Ptr && fieldVal.Type().Elem().Kind() == reflect.Struct {
if fieldVal.IsNil() {
fieldVal.Set(reflect.New(fieldVal.Type().Elem()))
}
// fmt.Printf("recursive: %v %v\n", m,fieldVal.Interface())
return FillStruct(m, fieldVal.Interface())
}
}
return fmt.Errorf("Provided value type didn't match obj field type")
}
fieldVal.Set(val)
return nil
}
func FillStruct(m map[string]interface{}, s interface{}) error {
for k, v := range m {
err := SetField(s, k, v)
if err != nil {
return err
}
}
return nil
}
type OtherStruct struct {
Name string
Age int64
}
type MyStruct struct {
Name string
Age int64
OtherStruct *OtherStruct
}
func main() {
myData := make(map[string]interface{})
myData["Name"] = "Tony"
myData["Age"] = int64(23)
OtherStruct := make(map[string]interface{})
myData["OtherStruct"] = OtherStruct
OtherStruct["Name"] = "roxma"
OtherStruct["Age"] = int64(23)
result := &MyStruct{}
err := FillStruct(myData,result)
fmt.Println(err)
fmt.Printf("%v %v\n",result,result.OtherStruct)
}
Consider this one: https://github.com/NanoHttpd/nanohttpd. Very small, written in Java. I used it without any problem.
This is so called file local variables, that are understood by Emacs and set correspondingly. See corresponding section in Emacs manual - you can define them either in header or in footer of file
Here is a function that does the conversion of a PDF file with one or multiple pages to a single merged JPEG image.
import os
import tempfile
from pdf2image import convert_from_path
from PIL import Image
def convert_pdf_to_image(file_path, output_path):
# save temp image files in temp dir, delete them after we are finished
with tempfile.TemporaryDirectory() as temp_dir:
# convert pdf to multiple image
images = convert_from_path(file_path, output_folder=temp_dir)
# save images to temporary directory
temp_images = []
for i in range(len(images)):
image_path = f'{temp_dir}/{i}.jpg'
images[i].save(image_path, 'JPEG')
temp_images.append(image_path)
# read images into pillow.Image
imgs = list(map(Image.open, temp_images))
# find minimum width of images
min_img_width = min(i.width for i in imgs)
# find total height of all images
total_height = 0
for i, img in enumerate(imgs):
total_height += imgs[i].height
# create new image object with width and total height
merged_image = Image.new(imgs[0].mode, (min_img_width, total_height))
# paste images together one by one
y = 0
for img in imgs:
merged_image.paste(img, (0, y))
y += img.height
# save merged image
merged_image.save(output_path)
return output_path
Example usage: -
convert_pdf_to_image("path_to_Pdf/1.pdf", "output_path/output.jpeg")
Or another old school solution:
var someArray = [9, 2, 5];
let i = 0;
for (var item of someArray) {
console.log(item); // 9,2,5
i++;
}
I guess you looking for CURDATE()
or NOW()
.
SELECT name, datum
FROM tasks
WHERE datum >= CURDATE()
LooK the rsult of NOW and CURDATE
NOW() CURDATE()
2008-11-11 12:45:34 2008-11-11
SOLUTIONS
g++
. So install g++
first and then recreate your project. This worked for me.CMAKE_CXX_COMPILER:FILEPATH=/usr/bin/c++
Note the path to g++
depends on OS. I have used my fedora path obtained using which g++
Public Function VLOOKUP1(ByVal lookup_value As String, ByVal table_array As Range, ByVal col_index_num As Integer) As String
Dim i As Long
For i = 1 To table_array.Rows.Count
If lookup_value = table_array.Cells(table_array.Row + i - 1, 1) Then
VLOOKUP1 = table_array.Cells(table_array.Row + i - 1, col_index_num)
Exit For
End If
Next i
End Function
Try this:
import matplotlib as plt
after importing the file we can use matplotlib library but remember to use it as plt
df.plt(kind='line',figsize=(10,5))
after that the plot will be done and size increased. In figsize the 10 is for breadth and 5 is for height. Also other attributes can be added to the plot too.
You can grant system privileges with or without the admin option. The default being without admin option.
GRANT CREATE SESSION TO username
or with admin option:
GRANT CREATE SESSION TO username WITH ADMIN OPTION
The Grantee with the ADMIN OPTION
can grant and revoke privileges to other users
How about something like this:
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
table[row][col] = (char) ('1' + row * 3 + col);
The following complete Java program:
class Test {
public static void main(String[] args) {
char[][] table = new char[3][3];
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
table[row][col] = (char) ('1' + row * 3 + col);
for (int row = 0; row < 3; row ++)
for (int col = 0; col < 3; col++)
System.out.println (table[row][col]);
}
}
outputs:
1
2
3
4
5
6
7
8
9
This works because the digits in Unicode are consecutive starting at \u0030 (which is what you get from '0'
).
The expression '1' + row * 3 + col
(where you vary row
and col
between 0
and 2
inclusive) simply gives you a character from 1
to 9
.
Obviously, this won't give you the character 10
(since that's two characters) if you go further but it works just fine for the 3x3 case. You would have to change the method of generating the array contents at that point such as with something like:
String[][] table = new String[5][5];
for (int row = 0; row < 5; row ++)
for (int col = 0; col < 5; col++)
table[row][col] = String.format("%d", row * 5 + col + 1);
If your detached HEAD is a fast forward of master and you just want the commits upstream, you can
git push origin HEAD:master
to push directly, or
git checkout master && git merge [ref of HEAD]
will merge it back into your local master.
You can use the Median of Medians algorithm to find median of an unsorted array in linear time.
Only dictionaries, Lists and primitive object types (int, string, bool) are available in JSON.
I have Visual Studio Team System 2008 Development Edition, and had to remove all updates and Hotfixes:
KB972221
KB973674
KB971091
Reboot, then the following Hotfix appeared, which I then removed as per @riaraos' answer:
KB952241
Before the Change/Remove would work!
Hope that helps someone else.
Best option would be
Add a compare validator to the web form. Set its controlToValidate. Set its Type property to Date. Set its operator property to DataTypeCheck eg:
<asp:CompareValidator
id="dateValidator" runat="server"
Type="Date"
Operator="DataTypeCheck"
ControlToValidate="txtDatecompleted"
ErrorMessage="Please enter a valid date.">
</asp:CompareValidator>
The next version of Windows (Windows 7) will be able to snap windows to the left or right half of the screen. Doesn't help right now, but it's something to look forward to.
http://arstechnica.com/news.ars/post/20081028-first-look-at-windows-7.html
I had problems with the relative source in Silverlight. After searching and reading I did not find a suitable solution without using some additional Binding library. But, here is another approach for gaining access to the parent DataContext by directly referencing an element of which you know the data context. It uses Binding ElementName
and works quite well, as long as you respect your own naming and don't have heavy reuse of templates
/styles
across components:
<ItemsControl x:Name="level1Lister" ItemsSource={Binding MyLevel1List}>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Content={Binding MyLevel2Property}
Command={Binding ElementName=level1Lister,
Path=DataContext.MyLevel1Command}
CommandParameter={Binding MyLevel2Property}>
</Button>
<DataTemplate>
<ItemsControl.ItemTemplate>
</ItemsControl>
This also works if you put the button into Style
/Template
:
<Border.Resources>
<Style x:Key="buttonStyle" TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Button Command={Binding ElementName=level1Lister,
Path=DataContext.MyLevel1Command}
CommandParameter={Binding MyLevel2Property}>
<ContentPresenter/>
</Button>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Border.Resources>
<ItemsControl x:Name="level1Lister" ItemsSource={Binding MyLevel1List}>
<ItemsControl.ItemTemplate>
<DataTemplate>
<Button Content="{Binding MyLevel2Property}"
Style="{StaticResource buttonStyle}"/>
<DataTemplate>
<ItemsControl.ItemTemplate>
</ItemsControl>
At first I thought that the x:Names
of parent elements are not accessible from within a templated item, but since I found no better solution, I just tried, and it works fine.
This answer may not apply universally, but it fixed the occurrence of this error I was encountering when importing a small text file. The flat file provider was importing based on fixed 50-character text columns in the source, which was incorrect. No amount of remapping the destination columns affected the issue.
To solve the issue, in the "Choose a Data Source" for the flat-file provider, after selecting the file, a "Suggest Types.." button appears beneath the input column list. After hitting this button, even if no changes were made to the enusing dialog, the Flat File provider then re-queried the source .csv file and then correctly determined the lengths of the fields in the source file.
Once this was done, the import proceeded with no further issues.
Use this SQL code
copy table_name(atribute1,attribute2,attribute3...)
from 'E:\test.csv' delimiter ',' csv header
the header keyword lets the DBMS know that the csv file have a header with attributes
for more visit http://www.postgresqltutorial.com/import-csv-file-into-posgresql-table/
download rpm packages and run the following command:
rpm -Uvh glibc-2.15-60.el6.x86_64.rpm \
glibc-common-2.15-60.el6.x86_64.rpm \
glibc-devel-2.15-60.el6.x86_64.rpm \
glibc-headers-2.15-60.el6.x86_64.rpm
This is an answer to this question (Export Heroku App to a new GitHub repo) which has been marked as duplicate of this one and redirected here.
I wanted to mirror my repo from Heroku to Github personal so that it shows all commits etc also which I made in Heroku. https://docs.github.com/en/free-pro-team@latest/github/importing-your-projects-to-github/importing-a-git-repository-using-the-command-line in Github documentation was useful.
You need to define something in the interface, such as:
public interface ITest
{
string Name { get; }
}
Implement ITest
in your classes:
public class MyClass1 : ITest
{
public string Name { get { return "Test1"; } }
}
public class MyClass2 : ITest
{
public string Name { get { return "Test2"; } }
}
Then restrict your generic Print
function, to ITest
:
public void Print<T>(T test) where T : ITest
{
}
Just use this code
QPixmap pixmap("path_to_icon");
QIcon iconBack(pixmap);
Note that:"path_to_icon"
is the path of image icon in file .qrc
of your project You can find how to add .qrc
file here
select FOUND_ROWS();
will return no. of records selected by select query.
const destroy = container => {
document.getElementById(container).innerHTML = '';
};
Faster previous
const destroyFast = container => {
const el = document.getElementById(container);
while (el.firstChild) el.removeChild(el.firstChild);
};
You can do it by ordering to do the operation with a list of files with names equal to the name(s) you need. It is much easier and direct than to create a special target. And you needn't any additional tools, just pure Ant.
<delete>
<fileset includes="name or names of file or files you need to delete"/>
</delete>
See: FileSet.
The quick and dirty way to check what string you need it to look at the generated .resources files.
Your .resources are generated in the resources projects obj/Debug directory. (if not right click on .resx file in solution explorer and hit 'Run Custom Tool' to generate the .resources files)
Navigate to this directory and have a look at the filenames. You should see a file ending in XYZ.resources. Copy that filename and remove the trailing .resources and that is the file you should be loading.
For example in my obj/Bin directory I have the file:
MyLocalisation.Properties.Resources.resources
If the resource files are in the same Class library/Application I would use the following C#
ResourceManager RM = new ResourceManager("MyLocalisation.Properties.Resources", Assembly.GetExecutingAssembly());
However, as it sounds like you are using the resources file from a separate Class library/Application you probably want
Assembly localisationAssembly = Assembly.Load("MyLocalisation");
ResourceManager RM = new ResourceManager("MyLocalisation.Properties.Resources", localisationAssembly);
Best I can give you is a "works for me" on SVN 1.5. You may try adding --no-auth-cache
to your svn update
to see if that lets you override more easily.
If you want to permanently switch from user2 to user1, head into ~/.subversion/auth/ on *nix and delete the auth cache file for domain.com (most likely in ~/.subversion/auth/svn.simple/ -- just read through them and you'll find the one you want to drop). While it is possible to update the current auth cache, you have to make sure to update the length tokens as well. Simpler just to get prompted again next time you update.
class Test extends Thread
{
public void run(){
try{
Thread.sleep(10000);
}catch(InterruptedException e){
System.out.println("test1");
throw new RuntimeException("Thread interrupted..."+e);
}
}
public static void main(String args[]){
Test t1=new Test1();
t1.start();
try{
t1.interrupt();
}catch(Exception e){
System.out.println("test2");
System.out.println("Exception handled "+e);
}
}
}
Its output doesn't contain test2 , so its not handling runtime exception. @jon skeet, @Jan Zyka
In this case, random is actually pseudo-random. Given a seed, it will generate numbers with an equal distribution. But with the same seed, it will generate the same number sequence every time. If you want it to change, you'll have to change your seed. A lot of people like to generate a seed based on the current time or something.
What do you intend to do with the overlay? If it's static, say, a simple box overlapping some content, just use absolute positioning with CSS. If it's dynamic (I believe this is called a lightbox), you can write some CSS-modifying jQuery code to show/hide the overlay on-demand.
If you're like me and want to use Google Guava and not Apache Commons. You can use the repeat method in the Guava Strings class.
Strings.repeat("-", 60);
No, it's not possible.
It's really, if not use native selects, if you create custom select widget from html elements, t.e. "li".
In general I use system
, open
, IPC::Open2
, or IPC::Open3
depending on what I want to do. The qx//
operator, while simple, is too constraining in its functionality to be very useful outside of quick hacks. I find open
to much handier.
system
: run a command and wait for it to returnUse system
when you want to run a command, don't care about its output, and don't want the Perl script to do anything until the command finishes.
#doesn't spawn a shell, arguments are passed as they are
system("command", "arg1", "arg2", "arg3");
or
#spawns a shell, arguments are interpreted by the shell, use only if you
#want the shell to do globbing (e.g. *.txt) for you or you want to redirect
#output
system("command arg1 arg2 arg3");
qx//
or ``: run a command and capture its STDOUTUse qx//
when you want to run a command, capture what it writes to STDOUT, and don't want the Perl script to do anything until the command finishes.
#arguments are always processed by the shell
#in list context it returns the output as a list of lines
my @lines = qx/command arg1 arg2 arg3/;
#in scalar context it returns the output as one string
my $output = qx/command arg1 arg2 arg3/;
exec
: replace the current process with another process.Use exec
along with fork
when you want to run a command, don't care about its output, and don't want to wait for it to return. system
is really just
sub my_system {
die "could not fork\n" unless defined(my $pid = fork);
return waitpid $pid, 0 if $pid; #parent waits for child
exec @_; #replace child with new process
}
You may also want to read the waitpid
and perlipc
manuals.
open
: run a process and create a pipe to its STDIN or STDERRUse open
when you want to write data to a process's STDIN or read data from a process's STDOUT (but not both at the same time).
#read from a gzip file as if it were a normal file
open my $read_fh, "-|", "gzip", "-d", $filename
or die "could not open $filename: $!";
#write to a gzip compressed file as if were a normal file
open my $write_fh, "|-", "gzip", $filename
or die "could not open $filename: $!";
Use IPC::Open2
when you need to read from and write to a process's STDIN and STDOUT.
use IPC::Open2;
open2 my $out, my $in, "/usr/bin/bc"
or die "could not run bc";
print $in "5+6\n";
my $answer = <$out>;
use IPC::Open3
when you need to capture all three standard file handles of the process. I would write an example, but it works mostly the same way IPC::Open2 does, but with a slightly different order to the arguments and a third file handle.
There is a way of displaying 3 Y axis see here.
Excel supports Secondary Axis, i.e. only 2 Y axis. Other way would be to chart the 3rd one separately, and overlay on top of the main chart.
The following converts decimal to Binary with Time Complexity : O(n) Linear Time and with out any java inbuilt function
private static int decimalToBinary(int N) {
StringBuilder builder = new StringBuilder();
int base = 2;
while (N != 0) {
int reminder = N % base;
builder.append(reminder);
N = N / base;
}
return Integer.parseInt(builder.reverse().toString());
}
This question is quite dated yet I wanted to leave an answer that leverages the current version of the language. Unfortunately static classes still don't exist in TypeScript however you can write a class that behaves similar with only a small overhead using a private constructor which prevents instantiation of classes from outside.
class MyStaticClass {
public static readonly property: number = 42;
public static myMethod(): void { /* ... */ }
private constructor() { /* noop */ }
}
This snippet will allow you to use "static" classes similar to the C# counterpart with the only downside that it is still possible to instantiate them from inside. Fortunately though you cannot extend classes with private constructors.
No, because there's no precompiler. However, in your case you could achieve the same thing as follows:
class MyClass
{
private static final int PROTEINS = 0;
...
MyArray[] foo = new MyArray[PROTEINS];
}
The compiler will notice that PROTEINS
can never, ever change and so will inline it, which is more or less what you want.
Note that the access modifier on the constant is unimportant here, so it could be public
or protected
instead of private, if you wanted to reuse the same constant across multiple classes.
use the request()
helper instead. You don't have to worry about use
statements and thus this sort of problem wont happen again.
$input = request()->all();
simple
You need to use a global regular expression for this. Try it this way:
str.replace(/"/g, '\\"');
Check out regex syntax and options for the replace function in Using Regular Expressions with JavaScript.
You can download IE Driver (both 32 and 64-bit) from Selenium official site: http://docs.seleniumhq.org/download/
IE Driver is also available in the following site:
Note that, from March 15th, 2013, you can move or rename a file directly from GitHub:
(you don't even need to clone that repo, git mv xx
and git push
back to GitHub!)
You can also move files to entirely new locations using just the filename field.
To navigate down into a folder, just type the name of the folder you want to move the file into followed by/
.
The folder can be one that’s already part of your repository, or it can even be a brand-new folder that doesn’t exist yet!
In this case you might want to use the functions np.hstack and np.vstack
arr = np.array([])
arr = np.hstack((arr, np.array([1,2,3])))
# arr is now [1,2,3]
arr = np.vstack((arr, np.array([4,5,6])))
# arr is now [[1,2,3],[4,5,6]]
You also can use the np.concatenate function.
Cheers
on Mac, how I usually solve it
Hope this helps OP or someone else reading
If you face this problem in Angular 6, you can fix it by adding the parameter scrollPositionRestoration: 'enabled'
to app-routing.module.ts 's RouterModule:
@NgModule({
imports: [RouterModule.forRoot(routes,{
scrollPositionRestoration: 'enabled'
})],
exports: [RouterModule]
})
dic = {'female':1, 'male':0}
w['female'] = w['female'].replace(dic)
.replace has as argument a dictionary in which you may change and do whatever you want or need.
With the modification of a single line you could alter the fullcalendar.js script to allow a line break and put multiple information on the same line.
In FullCalendar.js on line ~3922 find htmlEscape(s) function and add .replace(/<br\s?/?>/g, '
') to the end of it.
function htmlEscape(s) {
return s.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/'/g, ''')
.replace(/"/g, '"')
.replace(/\n/g, '<br />')
.replace(/<br\s?\/?>/g, '<br />');
}
This will allow you to have multiple lines for the title, separating the information. Example replace the event.title with title: 'All Day Event' + '<br />' + 'Other Description'
For people looking for UIImage resizing,
@implementation UIImage (Resize)
- (UIImage *)scaledToSize:(CGSize)size
{
UIGraphicsBeginImageContextWithOptions(size, NO, 0.0f);
[self drawInRect:CGRectMake(0.0f, 0.0f, size.width, size.height)];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
- (UIImage *)aspectFitToSize:(CGSize)size
{
CGFloat aspect = self.size.width / self.size.height;
if (size.width / aspect <= size.height)
{
return [self scaledToSize:CGSizeMake(size.width, size.width / aspect)];
} else {
return [self scaledToSize:CGSizeMake(size.height * aspect, size.height)];
}
}
- (UIImage *)aspectFillToSize:(CGSize)size
{
CGFloat imgAspect = self.size.width / self.size.height;
CGFloat sizeAspect = size.width/size.height;
CGSize scaledSize;
if (sizeAspect > imgAspect) { // increase width, crop height
scaledSize = CGSizeMake(size.width, size.width / imgAspect);
} else { // increase height, crop width
scaledSize = CGSizeMake(size.height * imgAspect, size.height);
}
UIGraphicsBeginImageContextWithOptions(size, NO, 0.0f);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextClipToRect(context, CGRectMake(0, 0, size.width, size.height));
[self drawInRect:CGRectMake(0.0f, 0.0f, scaledSize.width, scaledSize.height)];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
@end
A very interesting project is disruptor. It has a ringbuffer and is used from what I know in financial applications.
See here: code of ringbuffer
I checked both Guava's EvictingQueue and ArrayDeque.
ArrayDeque does not limit growth if it's full it will double size and hence is not precisely acting like a ringbuffer.
EvictingQueue does what it promises but internally uses a Deque to store things and just bounds memory.
Hence, if you care about memory being bounded ArrayDeque is not fullfilling your promise. If you care about object count EvictingQueue uses internal composition (bigger object size).
A simple and memory efficient one can be stolen from jmonkeyengine. verbatim copy
import java.util.Iterator;
import java.util.NoSuchElementException;
public class RingBuffer<T> implements Iterable<T> {
private T[] buffer; // queue elements
private int count = 0; // number of elements on queue
private int indexOut = 0; // index of first element of queue
private int indexIn = 0; // index of next available slot
// cast needed since no generic array creation in Java
public RingBuffer(int capacity) {
buffer = (T[]) new Object[capacity];
}
public boolean isEmpty() {
return count == 0;
}
public int size() {
return count;
}
public void push(T item) {
if (count == buffer.length) {
throw new RuntimeException("Ring buffer overflow");
}
buffer[indexIn] = item;
indexIn = (indexIn + 1) % buffer.length; // wrap-around
count++;
}
public T pop() {
if (isEmpty()) {
throw new RuntimeException("Ring buffer underflow");
}
T item = buffer[indexOut];
buffer[indexOut] = null; // to help with garbage collection
count--;
indexOut = (indexOut + 1) % buffer.length; // wrap-around
return item;
}
public Iterator<T> iterator() {
return new RingBufferIterator();
}
// an iterator, doesn't implement remove() since it's optional
private class RingBufferIterator implements Iterator<T> {
private int i = 0;
public boolean hasNext() {
return i < count;
}
public void remove() {
throw new UnsupportedOperationException();
}
public T next() {
if (!hasNext()) {
throw new NoSuchElementException();
}
return buffer[i++];
}
}
}
go to canvas page.. view it in browser.. copy the address bar text. now go to your facebook app go to edit settings
in website, in site url paste that address
in facebook integration , again paste the that address in canvas url
and also the same code wherever you require canvas url or redirect url..
hope it will help..
The other thing that you can do is delete the table created manually.
Along with that, you will have to delete that particular migration file. Also, you will have to delete that particular entry in the django-migrations table(probably the last one in your case) which correlates to that particular migration.
At some point I too tried to do this, but the Android Studio doesn’t work quite like Eclipse does.
It's simpler: if you create a project at, say /home/USER/Projects/AndroidStudio/MyApplication
from there on all new projects will default to /home/USER/Projects/AndroidStudio
.
You can also edit ~/.AndroidStudioPreview/config/options/ide.general.xml
(in linux) and change the line that reads <option name="lastProjectLocation" value="$USER_HOME$/AndroidStudioProjects" />
to <option name="lastProjectLocation" value="$USER_HOME$/Projects/AndroidStudio" />
, but be aware that as soon as you create a project anywhere else this will change to that place and all new projects will default to it.
Hope this helps, but the truth is there really isn't much more to it other than what I explained here.
Let me know if you need anything else.
Array.from()
takes an iterable object to convert to an array and an optional map function. You could create an object with a .length
property as follows:
return Array.from({length: this.props.level}, (item, index) =>
<span className="indent" key={index}></span>
);
I wrote a class to normalize the data in my dictionary. The 'element' in the NormalizeData class below, needs to be of dict type. And you need to replace in the __iterate() with either your custom class object or any other object type that you would like to normalize.
class NormalizeData:
def __init__(self, element):
self.element = element
def execute(self):
if isinstance(self.element, dict):
self.__iterate()
else:
return
def __iterate(self):
for key in self.element:
if isinstance(self.element[key], <ClassName>):
self.element[key] = str(self.element[key])
node = NormalizeData(self.element[key])
node.execute()
The double space generally works well. However, sometimes the lacking newline in the PDF still occurs to me when using four pound sign sub titles #### in Jupyter Notebook, as the next paragraph is put into the subtitle as a single paragraph. No amount of double spaces and returns fixed this, until I created a notebook copy 'v. PDF' and started using a single backslash '\' which also indents the next paragraph nicely:
#### 1.1 My Subtitle \
1.1 My Subtitle
Next paragraph text.
An alternative to this, is to upgrade the level of your four # titles to three # titles, etc. up the title chain, which will remove the next paragraph indent and format the indent of the title itself (#### My Subtitle ---> ### My Subtitle).
### My Subtitle
1.1 My Subtitle
Next paragraph text.
I think this code will help you:
public class PingExample {
public static void main(String[] args){
try{
InetAddress address = InetAddress.getByName("192.168.1.103");
boolean reachable = address.isReachable(10000);
System.out.println("Is host reachable? " + reachable);
} catch (Exception e){
e.printStackTrace();
}
}
}
From the Express site, define a NotFound exception and throw it whenever you want to have a 404 page OR redirect to /404 in the below case:
function NotFound(msg){
this.name = 'NotFound';
Error.call(this, msg);
Error.captureStackTrace(this, arguments.callee);
}
NotFound.prototype.__proto__ = Error.prototype;
app.get('/404', function(req, res){
throw new NotFound;
});
app.get('/500', function(req, res){
throw new Error('keyboard cat!');
});
you can use decoration like this :
Container(
width: 60,
height: 60,
child: Icon(CustomIcons.option, size: 20,),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Color(0xFFe0f2f1)),
)
Now you have circle shape and Icon on it.
When using NOT IN you should ensure that none of the values are NULL:
SELECT mac, creation_date
FROM logs
WHERE logs_type_id=11
AND mac NOT IN (
SELECT mac
FROM consols
WHERE mac IS NOT NULL -- add this
)
You can use a HybridDictionary which automaticly detects the breaking point, and accepts null-values, making it essentialy the same as a HashSet.
That's the code I use:
<?php
$path="C:/foopath/";
$file="foofile.txt";
//read file contents
$content="
<h2>$file</h2>
<code>
<pre>".htmlspecialchars(file_get_contents("$path/$file"))."</pre>
</code>";
//display
echo $content;
?>
Keep in mind that if the user can modify $path or $file (for example via $_GET or $_POST), he/she will be able to see all your source files (danger!)
In C++ you can access fields or methods, using different operators, depending on it's type:
Note that :: should be used with a class name rather than a class instance, since static fields or methods are common to all instances of a class.
class AClass{
public:
static int static_field;
int instance_field;
static void static_method();
void method();
};
then you access this way:
AClass instance;
AClass *pointer = new AClass();
instance.instance_field; //access instance_field through a reference to AClass
instance.method();
pointer->instance_field; //access instance_field through a pointer to AClass
pointer->method();
AClass::static_field;
AClass::static_method();
I had exactly this problem with the exception that the Person class had a embedded key class. My own solution was to join them in the query AND remove
@Fetch(FetchMode.JOIN)
My embedded id class:
@Embeddable
public class MessageRecipientId implements Serializable {
@ManyToOne(targetEntity = Message.class, fetch = FetchType.LAZY)
@JoinColumn(name="messageId")
private Message message;
private String governmentId;
public MessageRecipientId() {
}
public Message getMessage() {
return message;
}
public void setMessage(Message message) {
this.message = message;
}
public String getGovernmentId() {
return governmentId;
}
public void setGovernmentId(String governmentId) {
this.governmentId = governmentId;
}
public MessageRecipientId(Message message, GovernmentId governmentId) {
this.message = message;
this.governmentId = governmentId.getValue();
}
}
/* cellpadding */
th, td { padding: 5px; }
/* cellspacing */
table { border-collapse: separate; border-spacing: 5px; } /* cellspacing="5" */
table { border-collapse: collapse; border-spacing: 0; } /* cellspacing="0" */
/* valign */
th, td { vertical-align: top; }
/* align (center) */
table { margin: 0 auto; }
The practical way is setting font-family
to a value that is the specific name of the semibold version, such as
font-family: "Myriad pro Semibold"
if that’s the name. (Personally I use my own font listing tool, which runs on Internet Explorer only to see the fonts in my system by names as usable in CSS.)
In this approach, font-weight
is not needed (and probably better not set).
Web browsers have been poor at implementing font weights by the book: they largely cannot find the specific weight version, except bold. The workaround is to include the information in the font family name, even though this is not how things are supposed to work.
Testing with Segoe UI, which often exists in different font weight versions on Windows systems, I was able to make Internet Explorer 9 select the proper version when using the logical approach (of using the font family name Segoe UI and different font-weight
values), but it failed on Firefox 9 and Chrome 16 (only normal and bold work). On all of these browsers, for example, setting font-family: Segoe UI Light
works OK.
Javascript is base of jQuery.
jQuery is a wrapper of JavaScript, with much pre-written functionality and DOM traversing.
List does not implement IBindingList
so the grid does not know about your new items.
Bind your DataGridView to a BindingList<T>
instead.
var list = new BindingList<Person>(persons);
myGrid.DataSource = list;
But I would even go further and bind your grid to a BindingSource
var list = new List<Person>()
{
new Person { Name = "Joe", },
new Person { Name = "Misha", },
};
var bindingList = new BindingList<Person>(list);
var source = new BindingSource(bindingList, null);
grid.DataSource = source;
So this happened! I accidently clicked on "assume unchanged"! I tried searching on Internet, but could not find any working solution! So, I tried few things here and there and finally I found the solution (easiest one) for this which will undo the assume unchanged!
Right click on "Your Project" then Team > Advanced > No assume Unchanged
.
Consider creating an index. A dictionary can do the trick. If you need the list semantics, subclass and keep the index as a private member...
To create a new object within generic code, you need to refer to the type by its constructor function. So instead of writing this:
function activatorNotWorking<T extends IActivatable>(type: T): T {
return new T(); // compile error could not find symbol T
}
You need to write this:
function activator<T extends IActivatable>(type: { new(): T ;} ): T {
return new type();
}
var classA: ClassA = activator(ClassA);
See this question: Generic Type Inference with Class Argument
Each key in a HashMap must be unique.
When "adding a duplicate key" the old value (for the same key, as keys must be unique) is simply replaced; see HashMap.put:
Associates the specified value with the specified key in this map. If the map previously contained a mapping for the key, the old value is replaced.
Returns the previous value associated with key, or null if there was no mapping for key.
As far as nulls: a single null key is allowed (as keys must be unique) but the HashMap can have any number of null values, and a null key need not have a null value. Per the documentation:
[.. HashMap] permits null values and [a] null key.
However, the documentation says nothing about null/null needing to be a specific key/value pair or null/"a" being invalid.
function ready(fn){var d=document;(d.readyState=='loading')?d.addEventListener('DOMContentLoaded',fn):fn();}
Use like
ready(function(){
//some code
});
(function(fn){var d=document;(d.readyState=='loading')?d.addEventListener('DOMContentLoaded',fn):fn();})(function(){
//Some Code here
//DOM is avaliable
//var h1s = document.querySelector("h1");
});
Support: IE9+
Please check below trick to find the date difference between two dates
DATEDIFF(DAY,ordr.DocDate,RDR1.U_ProgDate) datedifff
where you can change according your requirement as you want difference of days or month or year or time.
SELECT terms.*
FROM terms JOIN terms_relation ON id=term_id
WHERE taxonomy='categ'
Synalyze It! allows to compare text or bytes in all encodings the ICU library offers. Using that feature you usually see immediately which code page makes sense for your data.
Never recommended to mutate the state directly.
The recommended approach in later React versions is to use an updater function when modifying states to prevent race conditions:
Push string to end of the array
this.setState(prevState => ({
myArray: [...prevState.myArray, "new value"]
}))
Push string to beginning of the array
this.setState(prevState => ({
myArray: ["new value", ...prevState.myArray]
}))
Push object to end of the array
this.setState(prevState => ({
myArray: [...prevState.myArray, {"name": "object"}]
}))
Push object to beginning of the array
this.setState(prevState => ({
myArray: [ {"name": "object"}, ...prevState.myArray]
}))
install MySQLWorkbench, then
export PATH=$PATH:/Applications/MySQLWorkbench.app/Contents/MacOS
Marc's answer got me most of the way to what I needed, but I had to go with patIndex
rather than charIndex
because sometimes characters other than spaces mark the ends of my data's words. Here I'm using '%[ /-]%'
to look for space, slash, or dash.
Select race_id, race_description
, Case patIndex ('%[ /-]%', LTrim (race_description))
When 0 Then LTrim (race_description)
Else substring (LTrim (race_description), 1, patIndex ('%[ /-]%', LTrim (race_description)) - 1)
End race_abbreviation
from tbl_races
Results...
race_id race_description race_abbreviation
------- ------------------------- -----------------
1 White White
2 Black or African American Black
3 Hispanic/Latino Hispanic
Caveat: this is for a small data set (US federal race reporting categories); I don't know what would happen to performance when scaled up to huge numbers.
This is another way to shuffle the data.frame
using package dplyr
:
row-wise:
df2 <- slice(df1, sample(1:n()))
or
df2 <- sample_frac(df1, 1L)
column-wise:
df2 <- select(df1, one_of(sample(names(df1))))
<html>
<head>
<script>
function dayDiff()
{
var start = document.getElementById("datepicker").value;
var end= document.getElementById("date_picker").value;
var oneDay = 24*60*60*1000;
var firstDate = new Date(start);
var secondDate = new Date(end);
var diffDays = Math.round(Math.abs((firstDate.getTime() - secondDate.getTime())/(oneDay)));
document.getElementById("leave").value =diffDays ;
}
</script>
</head>
<body>
<input type="text" name="datepicker"value=""/>
<input type="text" name="date_picker" onclick="function dayDiff()" value=""/>
<input type="text" name="leave" value=""/>
</body>
</html>
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
@Configuration
public class RestTemplateClient {
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
}
This is my solution is use display: inline
Some text <div class="dropdown" style="display:inline">
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
Dropdown
<span class="caret"></span>
</button>
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">
<li><a href="#">Action</a></li>
<li><a href="#">Another action</a></li>
<li><a href="#">Something else here</a></li>
<li><a href="#">Separated link</a></li>
</ul>
</div> is here
a
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
_x000D_
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css" rel="stylesheet" />_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet" />Your text_x000D_
<div class="dropdown" style="display: inline">_x000D_
<button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">_x000D_
Dropdown_x000D_
<span class="caret"></span>_x000D_
</button>_x000D_
<ul class="dropdown-menu" aria-labelledby="dropdownMenu1">_x000D_
<li><a href="#">Action</a>_x000D_
</li>_x000D_
<li><a href="#">Another action</a>_x000D_
</li>_x000D_
<li><a href="#">Something else here</a>_x000D_
</li>_x000D_
<li><a href="#">Separated link</a>_x000D_
</li>_x000D_
</ul>_x000D_
</div>is here
_x000D_
There is some basic pattern matching available through using LIKE, where % matches any number and combination of characters, _ matches any one character, and [abc] could match a, b, or c... There is more info on the MSDN site.
Note: All of the following instructions apply universally (aka to all OSes) unless otherwise specified.
You will need:
Change the file extension of the .apk
file by either adding a .zip
extension to the filename, or to change .apk
to .zip
.
For example, com.example.apk
becomes com.example.zip
, or com.example.apk.zip
. Note that on Windows and macOS, it may prompt you whether you are sure you want to change the file extension. Click OK or Add if you're using macOS:
Extract the renamed APK file in a specific folder. For example, let that folder be demofolder
.
If it didn't work, try opening the file in another application such as WinZip or 7-Zip.
For macOS, you can try running unzip
in Terminal (available at /Applications/Terminal.app
), where it takes one or more arguments: the file to unzip + optional arguments. See man unzip
for documentation and arguments.
Download dex2jar
(see all releases on GitHub) and extract that zip file in the same folder as stated in the previous point.
Open command prompt (or a terminal) and change your current directory to the folder created in the previous point and type the command d2j-dex2jar.bat classes.dex
and press enter. This will generate classes-dex2jar.jar
file in the same folder.
d2j-dex2jar.bat
with d2j-dex2jar.sh
. In other words, run d2j-jar2dex.sh classes.dex
in the terminal and press enter.Download Java Decompiler (see all releases on Github) and extract it and start (aka double click) the executable/application.
From the JD-GUI window, either drag and drop the generated classes-dex2jar.jar
file into it, or go to File > Open File...
and browse for the jar.
Next, in the menu, go to File > Save All Sources
(Windows: Ctrl+Alt+S, macOS: ?+?+S). This should open a dialog asking you where to save a zip file named `classes-dex2jar.jar.src.zip" consisting of all packages and java files. (You can rename the zip file to be saved)
Extract that zip file (classes-dex2jar.jar.src.zip
) and you should get all java files of the application.
xml
files from APKapktool
website for installation instructions and moreWindows:
myxmlfolder
).myxmlfolder
folder and rename the apktool jar file to apktool.jar
..apk
file in the same folder (i.e myxmlfolder
).Open the command prompt (or terminal) and change your current directory to the folder where apktool
is stored (in this case, myxmlfolder
). Next, type the command apktool if framework-res.apk
.
What we're doing here is that we are installing a framework. For more info, see the docs.
In the command prompt, type the command apktool d filename.apk
(where filename
is the name of apk file). This should decode the file. For more info, see the docs.
This should result in a folder filename.out
being outputted, where filename
is the original name of the apk file without the .apk
file extension. In this folder are all the XML files such as layout, drawables etc.
Source: How to get source code from APK file - Comptech Blogspot
Add CDN Files of toastr.css and toastr.js
<link href="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/css/toastr.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/toastr.js/2.0.1/js/toastr.js"></script>
function toasterOptions() {
toastr.options = {
"closeButton": false,
"debug": false,
"newestOnTop": false,
"progressBar": true,
"positionClass": "toast-top-center",
"preventDuplicates": true,
"onclick": null,
"showDuration": "100",
"hideDuration": "1000",
"timeOut": "5000",
"extendedTimeOut": "1000",
"showEasing": "swing",
"hideEasing": "linear",
"showMethod": "show",
"hideMethod": "hide"
};
};
toasterOptions();
toastr.error("Error Message from toastr");
If using JDBC driver you may use function escape sequence like this:
select {fn MOD(5, 2)}
#Result 1
select mod(5, 2)
#SQL Error [195] [S00010]: 'mod' is not a recognized built-in function name.
try
sudo dnf update
and then
sudo dnf install gcc-c++
Old question but worth adding an answer if using .NET Core 3.0 or later. JSON serialization/deserialization is built into the framework (System.Text.Json), so you don't have to use third party libraries any more. Here's an example based off the top answer given by @Icarus
using System;
using System.Collections.Generic;
namespace ConsoleApp
{
class Program
{
static void Main(string[] args)
{
var json = "[{\"Name\":\"John Smith\", \"Age\":35}, {\"Name\":\"Pablo Perez\", \"Age\":34}]";
// use the built in Json deserializer to convert the string to a list of Person objects
var people = System.Text.Json.JsonSerializer.Deserialize<List<Person>>(json);
foreach (var person in people)
{
Console.WriteLine(person.Name + " is " + person.Age + " years old.");
}
}
public class Person
{
public int Age { get; set; }
public string Name { get; set; }
}
}
}
Presumably, since you're not providing a value for the DB_ID
column, that value is being populated by a row-level before insert trigger defined on the table. That trigger, presumably, is selecting the value from a sequence.
Since the data was moved (presumably recently) from the production database, my wager would be that when the data was copied, the sequence was not modified as well. I would guess that the sequence is generating values that are much lower than the largest DB_ID
that is currently in the table leading to the error.
You could confirm this suspicion by looking at the trigger to determine which sequence is being used and doing a
SELECT <<sequence name>>.nextval
FROM dual
and comparing that to
SELECT MAX(db_id)
FROM cmdb_db
If, as I suspect, the sequence is generating values that already exist in the database, you could increment the sequence until it was generating unused values or you could alter it to set the INCREMENT
to something very large, get the nextval once, and set the INCREMENT
back to 1.
Use a CountDownLatch with a counter of 1.
CountDownLatch latch = new CountDownLatch(1);
Now in the app thread do-
latch.await();
In the db thread, after you are done, do -
latch.countDown();
A little late to the party but I thought I would try to clear up some common misconceptions in jQuery event handlers. As of jQuery 1.7, .on()
should be used instead of the deprecated .live()
, to delegate event handlers to elements that are dynamically created at any point after the event handler is assigned.
That said, it is not a simple of switching live
for on
because the syntax is slightly different:
New method (example 1):
$(document).on('click', '#someting', function(){
});
Deprecated method (example 2):
$('#something').live(function(){
});
As shown above, there is a difference. The twist is .on()
can actually be called similar to .live()
, by passing the selector to the jQuery function itself:
Example 3:
$('#something').on('click', function(){
});
However, without using $(document)
as in example 1, example 3 will not work for dynamically created elements. The example 3 is absolutely fine if you don't need the dynamic delegation.
Should $(document).on() be used for everything?
It will work but if you don't need the dynamic delegation, it would be more appropriate to use example 3 because example 1 requires slightly more work from the browser. There won't be any real impact on performance but it makes sense to use the most appropriate method for your use.
Should .on() be used instead of .click() if no dynamic delegation is needed?
Not necessarily. The following is just a shortcut for example 3:
$('#something').click(function(){
});
The above is perfectly valid and so it's really a matter of personal preference as to which method is used when no dynamic delegation is required.
References:
To add to the above: If interrupt is not working, you can restart the kernel.
Go to the kernel dropdown >> restart >> restart and clear output. This usually does the trick. If this still doesn't work, kill the kernel in the terminal (or task manager) and then restart.
Interrupt doesn't work well for all processes. I especially have this problem using the R kernel.
This helped in my case:
options: {
responsive: true,
scales: {
yAxes: [{
display: true,
ticks: {
min:0,
max:100
}
}]
}
}
JPanel jPanel = new JPanel();
jPanel.setBorder(BorderFactory.createLineBorder(Color.black));
Here not only jPanel, you can add border to any Jcomponent
ALTER TABLE TABLENAME ADD FOREIGN KEY (Column Name) REFERENCES TableName(column name)
Example:-
ALTER TABLE Department ADD FOREIGN KEY (EmployeeId) REFERENCES Employee(EmployeeId)
BCP can dump your data to a file and in SQL Server Management Studio, right click on the table, and select "script table as" then "create to", then "file..." and it will produce a complete table script.
BCP info
https://web.archive.org/web/1/http://blogs.techrepublic%2ecom%2ecom/datacenter/?p=319
http://msdn.microsoft.com/en-us/library/aa174646%28SQL.80%29.aspx
No, but you could go with something like border-bottom: 1px solid #000
and padding-bottom: 3px
.
If you want the same color of the "underline" (which in my example is a border), you just leave out the color declaration, i.e. border-bottom-width: 1px
and border-bottom-style: solid
.
For multiline, you can wrap you multiline texts in a span inside the element. E.g. <a href="#"><span>insert multiline texts here</span></a>
then just add border-bottom
and padding
on the <span>
- Demo
You are accessing an object that is not defined.
The solution is check for null or undefined (to see whether the object exists) and only then iterate.
All that the call to urlopen()
does (according to the docs) is return a file-like object. Once you have that, you need to call its read()
method to actually pull the JSON data across the network.
Something like:
jsonurl = urlopen(url)
text = json.loads(jsonurl.read())
print text
You could put a crontab file in /etc/cron.d
which would run a script that would run your command and then delete the crontab file in /etc/cron.d
. Of course, that means your script would need to run as root.
It's the default configuration for a Java web application; it's required.
WicketFilter
is applied to every HTTP request that's sent to this web app.
img
in the center of its parent.img
is an inline element, text-center
aligns inline elements in the center of its container should the container be a block
element. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col text-center">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
mx-auto
centers block
elements. In order to so, change display
of the img from inline
to block
with d-block
class. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid d-block mx-auto">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
d-flex
and justify-content-center
on its parent. <link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.1/css/bootstrap.css" rel="stylesheet"/>_x000D_
<div class="container mt-5">_x000D_
<div class="row">_x000D_
<div class="col d-flex justify-content-center">_x000D_
<img src="https://upload.wikimedia.org/wikipedia/en/8/80/Wikipedia-logo-v2.svg" alt="" class="img-fluid">_x000D_
</div>_x000D_
</div>_x000D_
</div>
_x000D_
I was experiencing this problem on Samsung devices (fine on others). like zyamys suggested in his/her comment, I added the manifest.permission line but in addition to rather than instead of the original line, so:
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.Manifest.permission.READ_PHONE_STATE" />
I'm targeting API 22, so don't need to explicitly ask for permissions.
$("ul[data-group='Companies'] li[data-company='Microsoft']") //Get all elements with data-company="Microsoft" below "Companies"
$("ul[data-group='Companies'] li:not([data-company='Microsoft'])") //get all elements with data-company!="Microsoft" below "Companies"
Look in to jQuery Selectors :contains is a selector
here is info on the :contains selector
This one worked for me:
>> print(df)
TotalVolume Symbol
2016-04-15 09:00:00 108400 2802.T
2016-04-15 09:05:00 50300 2802.T
>> print(df.set_index(pd.to_datetime(df.index.values) - datetime(2016, 4, 15)))
TotalVolume Symbol
09:00:00 108400 2802.T
09:05:00 50300 2802.T
Edit: I have just explained logic to pair here. If anybody want to go with the complete code then see my another answer. I have answered here for logic only but I was not able to explain properly, So I have added another answer in the same thread.
Try this to do pairing:
If you are able to search the devices then this would be your next step
ArrayList<BluetoothDevice> arrayListBluetoothDevices = NEW ArrayList<BluetoothDevice>;
I am assuming that you have the list of Bluetooth devices added in the arrayListBluetoothDevices
:
BluetoothDevice bdDevice;
bdDevice = arrayListBluetoothDevices.get(PASS_THE_POSITION_TO_GET_THE_BLUETOOTH_DEVICE);
Boolean isBonded = false;
try {
isBonded = createBond(bdDevice);
if(isBonded)
{
Log.i("Log","Paired");
}
} catch (Exception e)
{
e.printStackTrace();
}
The createBond()
method:
public boolean createBond(BluetoothDevice btDevice)
throws Exception
{
Class class1 = Class.forName("android.bluetooth.BluetoothDevice");
Method createBondMethod = class1.getMethod("createBond");
Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);
return returnValue.booleanValue();
}
Add this line into your Receiver in the ACTION_FOUND
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
arrayListBluetoothDevices.add(device);
}
Here are the steps that worked for me for Ubuntu OS and using nvm
Go to nodejs website and get the last LTS version (for example in your current dater the version will be: x.y.z)
nvm install x.y.z
# In my case current version is: 14.15.4 (and had 14.15.3)
After that, execute nvm list
and you will get list of node versions installed by nvm.
Now you need to switch to the default last installed one by executing:
nvm alias default x.y.z
List again or run nvm --version
to check:
Update: sometimes even if i go over the steps above it doesn't work, so what i did was removing the symbolic links in /usr/local/bin
cd /usr/local/bin
sudo rm node npm npx
And relink:
sudo ln -s $(which node) /usr/local/bin/node
sudo ln -s $(which npm) /usr/local/bin/npm
sudo ln -s $(which npx) /usr/local/bin/npx
I thought I'd share my solution since it works under special circumstances. I my case the table with duplicate values did not have a foreign key (because the values were duplicated from another db).
begin transaction
-- create temp table with identical structure as source table
Select * Into #temp From tableName Where 1 = 2
-- insert distinct values into temp
insert into #temp
select distinct *
from tableName
-- delete from source
delete from tableName
-- insert into source from temp
insert into tableName
select *
from #temp
rollback transaction
-- if this works, change rollback to commit and execute again to keep you changes!!
PS: when working on things like this I always use a transaction, this not only ensures everything is executed as a whole, but also allows me to test without risking anything. But off course you should take a backup anyway just to be sure...
The equivalent JPA mapping for the DDL ON DELETE CASCADE
is cascade=CascadeType.REMOVE
. Orphan removal means that dependent entities are removed when the relationship to their "parent" entity is destroyed. For example if a child is removed from a @OneToMany
relationship without explicitely removing it in the entity manager.
JSON.stringify
returns a String
. So, for example:
var data = [
{ id: 1, name: "bob" },
{ id: 2, name: "john" },
{ id: 3, name: "jake" },
];
JSON.stringify(data)
will return the equivalent of:
"[{\"id\":1,\"name\":\"bob\"},{\"id\":2,\"name\":\"john\"},{\"id\":3,\"name\":\"jake\"}]"
as a String
value.
So when you have
<% for(var i=0; i<JSON.stringify(data).length; i++) {%>
what that ends up looking like is:
<% for(var i=0; i<"[{\"id\":1,\"name\":\"bob\"},{\"id\":2,\"name\":\"john\"},{\"id\":3,\"name\":\"jake\"}]".length; i++) {%>
which is probably not what you want. What you probably do want is something like this:
<table>
<% for(var i=0; i < data.length; i++) { %>
<tr>
<td><%= data[i].id %></td>
<td><%= data[i].name %></td>
</tr>
<% } %>
</table>
This will output the following table (using the example data
from above):
<table>
<tr>
<td>1</td>
<td>bob</td>
</tr>
<tr>
<td>2</td>
<td>john</td>
</tr>
<tr>
<td>3</td>
<td>jake</td>
</tr>
</table>
VBA has a CurDir keyword that will return the "current directory" as stored in Excel. I'm not sure all the things that affect the current directory, but definitely opening or saving a workbook will change it.
MyWorkbook.SaveAs CurDir & Application.PathSeparator & "MySavedWorkbook.xls"
This assumes that the sheet you want to save has never been saved and you want to define the file name in code.
If you trust the path, path.resolve is an option:
var path = require('path');
// All other routes should redirect to the index.html
app.route('/*')
.get(function(req, res) {
res.sendFile(path.resolve(app.get('appPath') + '/index.html'));
});
Solution is just simple.
If you are trying to access server using your local IP address and you are getting error saying like Forbidden You don't have permission to access / on this server
Just open your httpd.conf file from (in my case C:/wamp/bin/apache/apache2.2.21/conf/httpd.conf
)
Search for
<Directory "D:/wamp/www/">
....
.....
</Directory>
Replace Allow from 127.0.0.1
to
Allow from all
Save changes and restart your server.
Now you can access your server using your IP address
Note: Laravel 7 replaced MAIL_DRIVER by MAIL_MAILER
MAIL_MAILER=smtp
MAIL_HOST=smtp.gmail.com
MAIL_PORT=587
MAIL_USERNAME=yourgmailaddress
MAIL_PASSWORD=yourgmailpassword
MAIL_ENCRYPTION=tls
Allow less secure apps from "Google Account" - https://myaccount.google.com/ - Settings - Less secure app access (Turn On)
Flush cache config:
php artisan config:cache
For Apache:
sudo service apache2 restart
After looking into the Chart.Bar.js file I've managed to find the solution. I've used this function to generate a random color:
function getRandomColor() {
var letters = '0123456789ABCDEF'.split('');
var color = '#';
for (var i = 0; i < 6; i++ ) {
color += letters[Math.floor(Math.random() * 16)];
}
return color;
}
I've added it to the end of the file and i called this function right inside the "fillColor:" under
helpers.each(dataset.data,function(dataPoint,index){
//Add a new point for each piece of data, passing any required data to draw.
so now it looks like this:
helpers.each(dataset.data,function(dataPoint,index){
//Add a new point for each piece of data, passing any required data to draw.
datasetObject.bars.push(new this.BarClass({
value : dataPoint,
label : data.labels[index],
datasetLabel: dataset.label,
strokeColor : dataset.strokeColor,
fillColor : getRandomColor(),
highlightFill : dataset.highlightFill || dataset.fillColor,
highlightStroke : dataset.highlightStroke || dataset.strokeColor
}));
},this);
and it works I get different color for each bar.
For playing sound in java, you can refer to the following code.
import java.io.*;
import java.net.URL;
import javax.sound.sampled.*;
import javax.swing.*;
// To play sound using Clip, the process need to be alive.
// Hence, we use a Swing application.
public class SoundClipTest extends JFrame {
public SoundClipTest() {
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setTitle("Test Sound Clip");
this.setSize(300, 200);
this.setVisible(true);
try {
// Open an audio input stream.
URL url = this.getClass().getClassLoader().getResource("gameover.wav");
AudioInputStream audioIn = AudioSystem.getAudioInputStream(url);
// Get a sound clip resource.
Clip clip = AudioSystem.getClip();
// Open audio clip and load samples from the audio input stream.
clip.open(audioIn);
clip.start();
} catch (UnsupportedAudioFileException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (LineUnavailableException e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
new SoundClipTest();
}
}