Try this: service crond restart
, Hence it's crond
not cron
.
My understanding is this:
display date and time for all timezones
import java.util.Calendar;
import java.util.TimeZone;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
static final String ISO8601 = "yyyy-MM-dd'T'HH:mm:ssZ";
DateFormat dateFormat = new SimpleDateFormat(ISO8601);
Calendar c = Calendar.getInstance();
String formattedTime;
for (String availableID : TimeZone.getAvailableIDs()) {
dateFormat.setTimeZone(TimeZone.getTimeZone(availableID));
formattedTime = dateFormat.format(c.getTime());
System.out.println(formattedTime + " " + availableID);
}
This function handles also the invalid 29.2.2001 date.
function parseDate(str) {
var dateParts = str.split(".");
if (dateParts.length != 3)
return null;
var year = dateParts[2];
var month = dateParts[1];
var day = dateParts[0];
if (isNaN(day) || isNaN(month) || isNaN(year))
return null;
var result = new Date(year, (month - 1), day);
if (result == null)
return null;
if (result.getDate() != day)
return null;
if (result.getMonth() != (month - 1))
return null;
if (result.getFullYear() != year)
return null;
return result;
}
Actually I cannot agree to each statement.
"COALESCE expects all arguments to be of same datatype."
This is wrong, see below. Arguments can be different data types, that is also documented: If all occurrences of expr are numeric data type or any nonnumeric data type that can be implicitly converted to a numeric data type, then Oracle Database determines the argument with the highest numeric precedence, implicitly converts the remaining arguments to that data type, and returns that data type.. Actually this is even in contradiction to common expression "COALESCE stops at first occurrence of a non-Null value", otherwise test case No. 4 should not raise an error.
Also according to test case No. 5 COALESCE
does an implicit conversion of arguments.
DECLARE
int_val INTEGER := 1;
string_val VARCHAR2(10) := 'foo';
BEGIN
BEGIN
DBMS_OUTPUT.PUT_LINE( '1. NVL(int_val,string_val) -> '|| NVL(int_val,string_val) );
EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('1. NVL(int_val,string_val) -> '||SQLERRM );
END;
BEGIN
DBMS_OUTPUT.PUT_LINE( '2. NVL(string_val, int_val) -> '|| NVL(string_val, int_val) );
EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('2. NVL(string_val, int_val) -> '||SQLERRM );
END;
BEGIN
DBMS_OUTPUT.PUT_LINE( '3. COALESCE(int_val,string_val) -> '|| COALESCE(int_val,string_val) );
EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('3. COALESCE(int_val,string_val) -> '||SQLERRM );
END;
BEGIN
DBMS_OUTPUT.PUT_LINE( '4. COALESCE(string_val, int_val) -> '|| COALESCE(string_val, int_val) );
EXCEPTION WHEN OTHERS THEN DBMS_OUTPUT.PUT_LINE('4. COALESCE(string_val, int_val) -> '||SQLERRM );
END;
DBMS_OUTPUT.PUT_LINE( '5. COALESCE(SYSDATE,SYSTIMESTAMP) -> '|| COALESCE(SYSDATE,SYSTIMESTAMP) );
END;
Output:
1. NVL(int_val,string_val) -> ORA-06502: PL/SQL: numeric or value error: character to number conversion error
2. NVL(string_val, int_val) -> foo
3. COALESCE(int_val,string_val) -> 1
4. COALESCE(string_val, int_val) -> ORA-06502: PL/SQL: numeric or value error: character to number conversion error
5. COALESCE(SYSDATE,SYSTIMESTAMP) -> 2016-11-30 09:55:55.000000 +1:0 --> This is a TIMESTAMP value, not a DATE value!
I found that inserting \\n
works. I.e., you escape the escaped new line character
DISTINCT
: will gives you unique values.
SELECT GROUP_CONCAT(DISTINCT(categories )) AS categories FROM table
Use the following to check if text box is empty or have more than 1 white spaces
var name = jQuery.trim($("#ContactUsName").val());
if ((name.length == 0))
{
Your code
}
else
{
Your code
}
after you get the image path, try either of following ways
(as you need to set more attr than just the src) build the html and replace to the target region
$('#target_div').html('<img src="'+ imgPaht +'" width=100 height=100 alt="Hello Image" />');
you may need to add some delay if changing the "SRC" attr
setTimeout(function(){///this function fire after 1ms delay
$('#target_img_tag_id').attr('src',imgPaht);
}, 1);
npm init
It is all you need. It will create the package.json file on the fly for you.
Newcomer to Python, I had this issue when I was using the Python's **
feature in a wrong way. Trying to call this definition from somewhere:
def create_properties_frame(self, parent, **kwargs):
using a call without a double star was causing the problem:
self.create_properties_frame(frame, kw_gsp)
TypeError: create_properties_frame() takes 2 positional arguments but 3 were given
The solution is to add **
to the argument:
self.create_properties_frame(frame, **kw_gsp)
First lets take a look at how can we define a variable in mysql
To define a varible in mysql it should start with '@' like @{variable_name} and this '{variable_name}', we can replace it with our variable name.
Now, how to assign a value in a variable in mysql. For this we have many ways to do that
Example :-
mysql > SET @a = 1;
Example:-
mysql > @a:=1;
Example:-
mysql > select 1 into @a;
Here @a is user defined variable and 1 is going to be assigned in @a.
Now how to get or select the value of @{variable_name}.
we can use select statement like
Example :-
mysql > select @a;
it will show the output and show the value of @a.
Now how to assign a value from a table in a variable.
For this we can use two statement like :-
1.
@a := (select emp_name from employee where emp_id = 1);
select emp_name into @a from employee where emp_id = 1;
Always be careful emp_name must return single value otherwise it will throw you a error in this type statements.
refer this:- http://www.easysolutionweb.com/sql-pl-sql/how-to-assign-a-value-in-a-variable-in-mysql
I use this simple one-liner:
public static DateTime GetLastDayOfPreviousMonth(this DateTime date)
{
return date.AddDays(-date.Day);
}
Be aware, that it retains the time.
C# is a programming language.
.Net is a framework used for building applications on Windows.
.Net framework is not limited to C#. Different languages can target .Net framework and build applications using that framework. Examples are F# or VB.Net
What's happening is that the form is getting submitted, and so the page is being refreshed (with its original content). You're handling the click
event on a submit button.
If you want to remove the element and not submit the form, handle the submit
event on the form instead, and return false
from your handler:
HTML:
<form onsubmit="return removeDummy(); ">
<input type="submit" value="Remove DUMMY"/>
</form>
JavaScript:
function removeDummy() {
var elem = document.getElementById('dummy');
elem.parentNode.removeChild(elem);
return false;
}
But you don't need (or want) a form for that at all, not if its sole purpose is to remove the dummy div. Instead:
HTML:
<input type="button" value="Remove DUMMY" onclick="removeDummy()" />
JavaScript:
function removeDummy() {
var elem = document.getElementById('dummy');
elem.parentNode.removeChild(elem);
return false;
}
However, that style of setting up event handlers is old-fashioned. You seem to have good instincts in that your JavaScript code is in its own file and such. The next step is to take it further and avoid using onXYZ
attributes for hooking up event handlers. Instead, in your JavaScript, you can hook them up with the newer (circa year 2000) way instead:
HTML:
<input id='btnRemoveDummy' type="button" value="Remove DUMMY"/>
JavaScript:
function removeDummy() {
var elem = document.getElementById('dummy');
elem.parentNode.removeChild(elem);
return false;
}
function pageInit() {
// Hook up the "remove dummy" button
var btn = document.getElementById('btnRemoveDummy');
if (btn.addEventListener) {
// DOM2 standard
btn.addEventListener('click', removeDummy, false);
}
else if (btn.attachEvent) {
// IE (IE9 finally supports the above, though)
btn.attachEvent('onclick', removeDummy);
}
else {
// Really old or non-standard browser, try DOM0
btn.onclick = removeDummy;
}
}
...then call pageInit();
from a script
tag at the very end of your page body
(just before the closing </body>
tag), or from within the window
load
event, though that happens very late in the page load cycle and so usually isn't good for hooking up event handlers (it happens after all images have finally loaded, for instance).
Note that I've had to put in some handling to deal with browser differences. You'll probably want a function for hooking up events so you don't have to repeat that logic every time. Or consider using a library like jQuery, Prototype, YUI, Closure, or any of several others to smooth over those browser differences for you. It's very important to understand the underlying stuff going on, both in terms of JavaScript fundamentals and DOM fundamentals, but libraries deal with a lot of inconsistencies, and also provide a lot of handy utilities — like a means of hooking up event handlers that deals with browser differences. Most of them also provide a way to set up a function (like pageInit
) to run as soon as the DOM is ready to be manipulated, long before window
load
fires.
Example how to run program and write stdout and stderr to file with timestamp:
cmd /c ""C:\Program Files (x86)\program.exe" -param fooo >> "c:\dir space\Log_%date:~10,4%%date:~4,2%%date:~7,2%_%time:~0,2%%time:~3,2%%time:~6,2%.txt" 2>&1"
Key part is to double quote whole part behind cmd /c
and inside it use double quotes as usual. Also note that date is locale dependent, this example works using US locale.
This should be tested in mysql, not postgresql:
SELECT table_schema, # "DB Name",
Round(Sum(data_length + index_length) / 1024 / 1024, 1) # "DB Size in MB"
FROM information_schema.tables
GROUP BY table_schema;
If you have control to the {this.props.match.description} and if you are using JSX. I would recommend not to use "dangerouslySetInnerHTML".
// In JSX, you can define a html object rather than a string to contain raw HTML
let description = <h1>Hi there!</h1>;
// Here is how you print
return (
{description}
);
Steps to convert .py to .exe in Python 3.6
pip install cx_Freeze
.pip install idna
..py
program named myfirstprog.py
.setup.py
on the current directory of your script.setup.py
file, copy the code below and save it.python setup.py build
build
. It has another folder in it. Within that folder you can find your application. Run it. Make yourself happy.See the original script in my blog.
setup.py:
from cx_Freeze import setup, Executable
base = None
executables = [Executable("myfirstprog.py", base=base)]
packages = ["idna"]
options = {
'build_exe': {
'packages':packages,
},
}
setup(
name = "<any name>",
options = options,
version = "<any number>",
description = '<any description>',
executables = executables
)
EDIT:
myfirstprog.py
you should put your .py
extension file name as created in step 4;import
ed package in your .py
into packages
list (ex: packages = ["idna", "os","sys"]
)any name, any number, any description
in setup.py
file should not remain the same, you should change it accordingly (ex:name = "<first_ever>", version = "0.11", description = ''
)import
ed packages must be installed before you start step 8.Here is my extension method for Control
, using LINQ, as an adaptation of @PsychoCoder version:
It takes a list of type instead that allows you to not need multiple calls of GetAll
to get what you want. I currently use it as an overload version.
public static IEnumerable<Control> GetAll(this Control control, IEnumerable<Type> filteringTypes)
{
var ctrls = control.Controls.Cast<Control>();
return ctrls.SelectMany(ctrl => GetAll(ctrl, filteringTypes))
.Concat(ctrls)
.Where(ctl => filteringTypes.Any(t => ctl.GetType() == t));
}
Usage:
// The types you want to select
var typeToBeSelected = new List<Type>
{
typeof(TextBox)
, typeof(MaskedTextBox)
, typeof(Button)
};
// Only one call
var allControls = MyControlThatContainsOtherControls.GetAll(typeToBeSelected);
// Do something with it
foreach(var ctrl in allControls)
{
ctrl.Enabled = true;
}
I am not a cron specialist, but how about:
0 */72 * * *
It will run every 72 hours non-interrupted.
The use
operator is for giving aliases to names of classes, interfaces or other namespaces. Most use
statements refer to a namespace or class that you'd like to shorten:
use My\Full\Namespace;
is equivalent to:
use My\Full\Namespace as Namespace;
// Namespace\Foo is now shorthand for My\Full\Namespace\Foo
If the use
operator is used with a class or interface name, it has the following uses:
// after this, "new DifferentName();" would instantiate a My\Full\Classname
use My\Full\Classname as DifferentName;
// global class - making "new ArrayObject()" and "new \ArrayObject()" equivalent
use ArrayObject;
The use
operator is not to be confused with autoloading. A class is autoloaded (negating the need for include
) by registering an autoloader (e.g. with spl_autoload_register
). You might want to read PSR-4 to see a suitable autoloader implementation.
It will depend on your environment. If you're running a Swing UI via javaw
for example, then there isn't a console to display. If you're running within an IDE, it will very much depend on the specific IDE's handling of console IO.
From the command line, it should be fine though. Sample:
import java.io.Console;
public class Test {
public static void main(String[] args) throws Exception {
Console console = System.console();
if (console == null) {
System.out.println("Unable to fetch console");
return;
}
String line = console.readLine();
console.printf("I saw this line: %s", line);
}
}
Run this just with java
:
> javac Test.java
> java Test
Foo <---- entered by the user
I saw this line: Foo <---- program output
Another option is to use System.in
, which you may want to wrap in a BufferedReader
to read lines, or use Scanner
(again wrapping System.in
).
This question looks closely related. And BTW, here's a mergesort in Bash (without external processes):
mergesort() {
local -n -r input_reference="$1"
local -n output_reference="$2"
local -r -i size="${#input_reference[@]}"
local merge previous
local -a -i runs indices
local -i index previous_idx merged_idx \
run_a_idx run_a_stop \
run_b_idx run_b_stop
output_reference=("${input_reference[@]}")
if ((size == 0)); then return; fi
previous="${output_reference[0]}"
runs=(0)
for ((index = 0;;)) do
for ((++index;; ++index)); do
if ((index >= size)); then break 2; fi
if [[ "${output_reference[index]}" < "$previous" ]]; then break; fi
previous="${output_reference[index]}"
done
previous="${output_reference[index]}"
runs+=(index)
done
runs+=(size)
while (("${#runs[@]}" > 2)); do
indices=("${!runs[@]}")
merge=("${output_reference[@]}")
for ((index = 0; index < "${#indices[@]}" - 2; index += 2)); do
merged_idx=runs[indices[index]]
run_a_idx=merged_idx
previous_idx=indices[$((index + 1))]
run_a_stop=runs[previous_idx]
run_b_idx=runs[previous_idx]
run_b_stop=runs[indices[$((index + 2))]]
unset runs[previous_idx]
while ((run_a_idx < run_a_stop && run_b_idx < run_b_stop)); do
if [[ "${merge[run_a_idx]}" < "${merge[run_b_idx]}" ]]; then
output_reference[merged_idx++]="${merge[run_a_idx++]}"
else
output_reference[merged_idx++]="${merge[run_b_idx++]}"
fi
done
while ((run_a_idx < run_a_stop)); do
output_reference[merged_idx++]="${merge[run_a_idx++]}"
done
while ((run_b_idx < run_b_stop)); do
output_reference[merged_idx++]="${merge[run_b_idx++]}"
done
done
done
}
declare -ar input=({z..a}{z..a})
declare -a output
mergesort input output
echo "${input[@]}"
echo "${output[@]}"
For GWT 2.x I just discovered that if you use
<set-property name="user.agent" value="ie6"/>
<extend-property values="ie8,gecko1_8" name="user.agent"/>
You can even specify more than one permutation.
JavaScript is what you need. If you are loading iframe when loading the page, insert the test for iframe using the onload event. If iframe is inserted in realtime, then create a callback function on insertion and hook in whatever action you need to take :)
I know that this is an old question, but if you are building an API, as the author of the question does, use output transformers to perform such tasks.
Transofrmer is a layer between your actual database query result and a controller. It allows to easily control and modify what is going to be output to a user or an API consumer.
I recommend Fractal as a solid foundation of your output transformation layer. You can read the documentation here.
@Future-searchers: you can use aspell to do the dictionary checks, it has bindings in ruby and python. It would make your job much simpler.
Here is my solution, the good thing about this one is that you can pass as many params as you like.
function console_log()
{
$js_code = 'console.log(' . json_encode(func_get_args(), JSON_HEX_TAG) .
');';
$js_code = '<script>' . $js_code . '</script>';
echo $js_code;
}
Call it this way
console_log('DEBUG>>', 'Param 1', 'Param 2');
console_log('Console DEBUG:', $someRealVar1, $someVar, $someArray, $someObj);
Now you should be able to see output in your console, happy coding :)
it needs ONLY to popup when inside a vm, so technically, there should be some code like:
if %machine_type% == virtual_machine then
echo message box code
else
continue normal installation code
I found that there is height of div still showing, when it have text or not. So you can use this for best results.
<div style=" overflow:auto;max-height:300px; max-width:300px;"></div>
For those who switched to Kotlin just use
string.toLong()
That will call Long.parseLong(string)
under the hood
For getting the buffer size in c/c++ program the following is the flow
int n;
unsigned int m = sizeof(n);
int fdsocket;
fdsocket = socket(AF_INET,SOCK_DGRAM,IPPROTO_UDP); // example
getsockopt(fdsocket,SOL_SOCKET,SO_RCVBUF,(void *)&n, &m);
// now the variable n will have the socket size
As some sugested you can use apache or jax-ws. You can also use tools that generate code from WSDL such as ws-import but in my opinion the best way to consume web service is to create a dynamic client and invoke only operations you want not everything from wsdl. You can do this by creating a dynamic client: Sample code:
String endpointUrl = ...;
QName serviceName = new QName("http://com/ibm/was/wssample/echo/",
"EchoService");
QName portName = new QName("http://com/ibm/was/wssample/echo/",
"EchoServicePort");
/** Create a service and add at least one port to it. **/
Service service = Service.create(serviceName);
service.addPort(portName, SOAPBinding.SOAP11HTTP_BINDING, endpointUrl);
/** Create a Dispatch instance from a service.**/
Dispatch<SOAPMessage> dispatch = service.createDispatch(portName,
SOAPMessage.class, Service.Mode.MESSAGE);
/** Create SOAPMessage request. **/
// compose a request message
MessageFactory mf = MessageFactory.newInstance(SOAPConstants.SOAP_1_1_PROTOCOL);
// Create a message. This example works with the SOAPPART.
SOAPMessage request = mf.createMessage();
SOAPPart part = request.getSOAPPart();
// Obtain the SOAPEnvelope and header and body elements.
SOAPEnvelope env = part.getEnvelope();
SOAPHeader header = env.getHeader();
SOAPBody body = env.getBody();
// Construct the message payload.
SOAPElement operation = body.addChildElement("invoke", "ns1",
"http://com/ibm/was/wssample/echo/");
SOAPElement value = operation.addChildElement("arg0");
value.addTextNode("ping");
request.saveChanges();
/** Invoke the service endpoint. **/
SOAPMessage response = dispatch.invoke(request);
/** Process the response. **/
If you are running a bomebrew on OSX, I used the following to install it:
brew install php56-ssh2
That worked for me. I pulled it from here. There should also be Ubuntu and OSX using mac port as well.
It's really hard to tell, but one of the 9001 ads on the page may be clobbering the $
object.
jQuery provides the global jQuery
object (which is present on your page). You can do the following to "get" $
back:
jQuery(document).ready(function ($) {
// Your code here
});
If you think you're having jQuery problems, please use the debug (non-production) versions of the library.
Also, it's probably not best to be editing a live site like that ...
If no file available for download, I needed to disable the asp:linkButton, change it to grey and eliminate the underline on the hover. This worked:
.disabled {
color: grey;
text-decoration: none !important;
}
LinkButton button = item.FindControl("lnkFileDownload") as LinkButton;
button.Enabled = false;
button.CssClass = "disabled";
You want
strchr (const char *s, int c)
If the character c is in the string s it returns a pointer to the location in s. Otherwise it returns NULL. So just use your list of invalid characters as the string.
var text = 'price[5][68]';
var regex = /price\[(\d+)\]\[(\d+)\]/gi;
match = regex.exec(text);
match[1] and match[2] will contain the numbers you're looking for.
um why not just set an image to the bottom layer and forgo all the annoyances
<img src='yourmom.png' style='position:fixed;top:0px;left:0px;width:100%;height:100%;z-index:-1;'>
I had trouble passing parameters to the Commands.AddScript method.
C:\Foo1.PS1 Hello World Hunger
C:\Foo2.PS1 Hello World
scriptFile = "C:\Foo1.PS1"
parameters = "parm1 parm2 parm3" ... variable length of params
I Resolved this by passing null
as the name and the param as value into a collection of CommandParameters
Here is my function:
private static void RunPowershellScript(string scriptFile, string scriptParameters)
{
RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);
runspace.Open();
RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);
Pipeline pipeline = runspace.CreatePipeline();
Command scriptCommand = new Command(scriptFile);
Collection<CommandParameter> commandParameters = new Collection<CommandParameter>();
foreach (string scriptParameter in scriptParameters.Split(' '))
{
CommandParameter commandParm = new CommandParameter(null, scriptParameter);
commandParameters.Add(commandParm);
scriptCommand.Parameters.Add(commandParm);
}
pipeline.Commands.Add(scriptCommand);
Collection<PSObject> psObjects;
psObjects = pipeline.Invoke();
}
How to find it yourself with objdump -Sr
To actually understand what is going on, you must understand linker relocation. If you've never touched that, consider reading this post first.
Let's analyze a Linux x86-64 ELF example to see it ourselves:
#include <stdio.h>
int f() {
static int i = 1;
i++;
return i;
}
int main() {
printf("%d\n", f());
printf("%d\n", f());
return 0;
}
Compile with:
gcc -ggdb -c main.c
Decompile the code with:
objdump -Sr main.o
-S
decompiles the code with the original source intermingled-r
shows relocation informationInside the decompilation of f
we see:
static int i = 1;
i++;
4: 8b 05 00 00 00 00 mov 0x0(%rip),%eax # a <f+0xa>
6: R_X86_64_PC32 .data-0x4
and the .data-0x4
says that it will go to the first byte of the .data
segment.
The -0x4
is there because we are using RIP relative addressing, thus the %rip
in the instruction and R_X86_64_PC32
.
It is required because RIP points to the following instruction, which starts 4 bytes after 00 00 00 00
which is what will get relocated. I have explained this in more detail at: https://stackoverflow.com/a/30515926/895245
Then, if we modify the source to i = 1
and do the same analysis, we conclude that:
static int i = 0
goes on .bss
static int i = 1
goes on .data
Try the following to see if you have the proper repository installed:
# yum search java | grep 'java-'
This is going to return a list of available packages that have java in the title. Specifically we are interested in the java- anything, as the jdk will typically be in 'java-version#' type format... Anyhow, if you have to install a repo look at Dag Wieers repo:
http://dag.wieers.com/rpm/FAQ.php#B
After you've got it installed try yum search again... This time you'll have a bunch of java stuff.
# yum search java | grep 'java-'
This will return the list of the available java packages. You can install one like this:
# yum install java-1.7.0-openjdk.x86_64
In your layout you'll need something to display the text. A TextView
is the obvious choice. So you'll have something like this:
<TextView
android:id="@+id/text_view"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
And your code will look like this:
//Find the directory for the SD Card using the API
//*Don't* hardcode "/sdcard"
File sdcard = Environment.getExternalStorageDirectory();
//Get the text file
File file = new File(sdcard,"file.txt");
//Read text from file
StringBuilder text = new StringBuilder();
try {
BufferedReader br = new BufferedReader(new FileReader(file));
String line;
while ((line = br.readLine()) != null) {
text.append(line);
text.append('\n');
}
br.close();
}
catch (IOException e) {
//You'll need to add proper error handling here
}
//Find the view by its id
TextView tv = (TextView)findViewById(R.id.text_view);
//Set the text
tv.setText(text);
This could go in the onCreate()
method of your Activity
, or somewhere else depending on just what it is you want to do.
Try this which uses globs rather than regular expressions so it will only pick out the file names that end in .dbf
filenames <- Sys.glob("*.dbf")
As far as I know Celery does not give API for examining tasks that are waiting in the queue. This is broker-specific. If you use Redis as a broker for an example, then examining tasks that are waiting in the celery
(default) queue is as simple as:
celery
list (LRANGE command for an example)Keep in mind that these are tasks WAITING to be picked by available workers. Your cluster may have some tasks running - those will not be in this list as they have already been picked.
This is the only syntax that worked for me
$('input[name="assReq"][value="' + obj["AssociationReq"] + '"]').prop('checked', 'checked');
Update for React 16.3 alpha introduced static getDerivedStateFromProps(nextProps, prevState)
(docs) as a replacement for componentWillReceiveProps
.
getDerivedStateFromProps is invoked after a component is instantiated as well as when it receives new props. It should return an object to update state, or null to indicate that the new props do not require any state updates.
Note that if a parent component causes your component to re-render, this method will be called even if props have not changed. You may want to compare new and previous values if you only want to handle changes.
https://reactjs.org/docs/react-component.html#static-getderivedstatefromprops
It is static, therefore it does not have direct access to this
(however it does have access to prevState
, which could store things normally attached to this
e.g. refs
)
edited to reflect @nerfologist's correction in comments
Python 2.x
Return the next row of the reader’s iterable object as a list, parsed according to the current dialect.
csv_data = csv.reader(open('sample.csv'))
csv_data.next() # skip first row
for row in csv_data:
print(row) # should print second row
Python 3.x
Return the next row of the reader’s iterable object as a list (if the object was returned from reader()) or a dict (if it is a DictReader instance), parsed according to the current dialect. Usually you should call this as next(reader).
csv_data = csv.reader(open('sample.csv'))
csv_data.__next__() # skip first row
for row in csv_data:
print(row) # should print second row
It's unclear whether your question is asking for the get_or_create method (available from at least Django 1.3) or the update_or_create method (new in Django 1.7). It depends on how you want to update the user object.
Sample use is as follows:
# In both cases, the call will get a person object with matching
# identifier or create one if none exists; if a person is created,
# it will be created with name equal to the value in `name`.
# In this case, if the Person already exists, its existing name is preserved
person, created = Person.objects.get_or_create(
identifier=identifier, defaults={"name": name}
)
# In this case, if the Person already exists, its name is updated
person, created = Person.objects.update_or_create(
identifier=identifier, defaults={"name": name}
)
Just use Entry (as in java.util.Map.Entry) as the list type, and populate it using (java.util.AbstractMap’s) SimpleImmutableEntry:
List<Entry<Integer, String>> sections = new ArrayList<>();
sections.add(new SimpleImmutableEntry<>(anInteger, orString)):
Wanted to share what caused the error in my case. Spend couple hours to figure this out, so hopefully it will help to save someone some time.
Strangely enough, the error was raised with the Enable drop directory quota
setting being enabled for the domain.
I am not the expert and don't know the technical explanation, but unticking the mentioned setting sorted the problem.
Meteor's strength is in it's real-time updates feature which works well for some of the social applications you see nowadays where you see everyone's updates for what you're working on. These updates center around replicating subsets of a MongoDB collection underneath the covers as local mini-mongo (their client side MongoDB subset) database updates on your web browser (which causes multiple render events to be fired on your templates). The latter part about multiple render updates is also the weakness. If you want your UI to control when the UI refreshes (e.g., classic jQuery AJAX pages where you load up the HTML and you control all the AJAX calls and UI updates), you'll be fighting this mechanism.
Meteor uses a nice stack of Node.js plugins (Handlebars.js, Spark.js, Bootstrap css, etc. but using it's own packaging mechanism instead of npm) underneath along w/ MongoDB for the storage layer that you don't have to think about. But sometimes you end up fighting it as well...e.g., if you want to customize the Bootstrap theme, it messes up the loading sequence of Bootstrap's responsive.css file so it no longer is responsive (but this will probably fix itself when Bootstrap 3.0 is released soon).
So like all "full stack frameworks", things work great as long as your app fits what's intended. Once you go beyond that scope and push the edge boundaries, you might end up fighting the framework...
<html>
<head>
<script language="javascript" type="text/javascript" scr="asd.js"></script>
</head>
<body>
<form name="form1" action="#" method="get">
name:<input type ="text" id="name" name="n">
<input type="submit" value="next" >
<button type="button" id="print" onClick="testJS()"> Print </button>
</form>
</body>
client side scripting
function testJS(){
var name = jQuery("#name").val();
jQuery.load("next.html",function(){
jQuery("#here").html(name);
});
}
jQuery is a js library and it simplifies its programming. So I recommend to use jQuery rathar then js. Here I just took value of input elemnt(id = name) on submit button click event ,then loaded the desired page(next.html), if the load function executes successfully i am calling a function which will put the data in desired place.
jquery load function http://api.jquery.com/load/
For Oracle SQL Developer I was able to calculate the difference in years using the below line of SQL. This was to get Years that were within 0 to 10 years difference. You can do a case like shown in some of the other responses to handle your ifs as well. Happy Coding!
TRUNC((MONTHS_BETWEEN(<DATE_ONE>, <DATE_TWO>) * 31) / 365) > 0 and TRUNC((MONTHS_BETWEEN(<DATE_ONE>, <DATE_TWO>) * 31) / 365) < 10
Place them inside of the success:
of the one it relies on.
$.ajax({
url: 'http://www.xxxxxxxxxxxxx',
data: {name: 'xxxxxx'},
dataType: 'jsonp',
success: function(data){
// do stuff
// call next ajax function
$.ajax({ xxx });
}
});
The discussion I had with Asaph may be unclear to follow as we went back and forth quite a bit.
I thought that I might clarify the upshot of our discourse for others who might face similar situations in the future to benefit from:
ENUM
-type columns are very difficult beasts to manipulate. I wanted to add two countries (Malaysia & Sweden) to the existing set of countries in my ENUM.
It seems that MySQL 5.1 (which is what I am running) can only update the ENUM by redefining the existing set in addition to what I want:
This did not work:
ALTER TABLE carmake CHANGE country country ENUM('Sweden','Malaysia') DEFAULT NULL;
The reason was that the MySQL statement was replacing the existing ENUM with another containing the entries 'Malaysia'
and 'Sweden'
only. MySQL threw up an error because the carmake
table already had values like 'England'
and 'USA'
which were not part of the new ENUM
's definition.
Surprisingly, the following did not work either:
ALTER TABLE carmake CHANGE country country ENUM('Australia','England','USA'...'Sweden','Malaysia') DEFAULT NULL;
It turns out that even the order of elements of the existing ENUM
needs to be preserved while adding new members to it. So if my existing ENUM
looks something like ENUM('England','USA')
, then my new ENUM
has to be defined as ENUM('England','USA','Sweden','Malaysia')
and not ENUM('USA','England','Sweden','Malaysia')
. This problem only becomes manifest when there are records in the existing table that use 'USA'
or 'England'
values.
BOTTOM LINE:
Only use ENUM
s when you do not expect your set of members to change once defined. Otherwise, lookup tables are much easier to update and modify.
It's just the required syntax:
void Func(int (&myArray)[100])
^ Pass array of 100 int
by reference the parameters name is myArray
;
void Func(int* myArray)
^ Pass an array. Array decays to a pointer. Thus you lose size information.
void Func(int (*myFunc)(double))
^ Pass a function pointer. The function returns an int
and takes a double
. The parameter name is myFunc
.
Here is a nifty solution with a filter:
app.filter('status', function() {
var statusDict = {
0: "No payment",
1: "Late",
2: "Late",
3: "Some payment made",
4: "Some payment made",
5: "Some payment made",
6: "Late and further taken out"
};
return function(status) {
return statusDict[status] || 'Error';
};
});
Markup:
<div ng-repeat="details in myDataSet">
<p>{{ details.Name }}</p>
<p>{{ details.DOB }}</p>
<p>{{ details.Payment[0].Status | status }}</p>
<p>{{ details.Gender}}</p>
</div>
Use sort.
You just have to do this:
All elements in the list must implement the Comparable interface.
(Or use the version below it, as others already said.)
The hashes are just because your column width is not enough to display the "number".
About the sorting, you should review how you system region and language is configured. For the US region, Excel date input should be "5/17/2012" not "17/05/2012" (this 17-may-12).
Regards
Its best to use it for every method intended as an override, and Java 6+, every method intended as an implementation of an interface.
First, it catches misspellings like "hashcode()
" instead of "hashCode()
" at compile-time. It can be baffling to debug why the result of your method doesn't seem to match your code when the real cause is that your code is never invoked.
Also, if a superclass changes a method signature, overrides of the older signature can be "orphaned", left behind as confusing dead code. The @Override
annotation will help you identify these orphans so that they can be modified to match the new signature.
It's not built into the Swift library but you can add what you want with operator overloading, e.g:
func + <K,V>(left: Dictionary<K,V>, right: Dictionary<K,V>)
-> Dictionary<K,V>
{
var map = Dictionary<K,V>()
for (k, v) in left {
map[k] = v
}
for (k, v) in right {
map[k] = v
}
return map
}
This overloads the +
operator for Dictionaries which you can now use to add dictionaries with the +
operator, e.g:
var dict1 = ["a" : "foo"]
var dict2 = ["b" : "bar"]
var dict3 = dict1 + dict2 // ["a": "foo", "b": "bar"]
If you have it available, using curl is your best option.
You can see if it is enabled by doing phpinfo()
and searching the page for curl.
If it is enabled, try this:
$curl_handle=curl_init();
curl_setopt($curl_handle, CURLOPT_URL, SITE_PATH . 'cms/data.php');
$xml_file = curl_exec($curl_handle);
curl_close($curl_handle);
This still loops through the cartesian product of the two lists, but it does it one line:
>>> lines1 = ['soup', 'butter', 'venison']
>>> lines2 = ['prune', 'rye', 'turkey']
>>> search_strings = ['a', 'b', 'c']
>>> any(s in l for l in lines1 for s in search_strings)
True
>>> any(s in l for l in lines2 for s in search_strings)
False
This also have the advantage that any
short-circuits, and so the looping stops as soon as a match is found. Also, this only finds the first occurrence of a string from search_strings
in linesX
. If you want to find multiple occurrences you could do something like this:
>>> lines3 = ['corn', 'butter', 'apples']
>>> [(s, l) for l in lines3 for s in search_strings if s in l]
[('c', 'corn'), ('b', 'butter'), ('a', 'apples')]
If you feel like coding something more complex, it seems the Aho-Corasick algorithm can test for the presence of multiple substrings in a given input string. (Thanks to Niklas B. for pointing that out.) I still think it would result in quadratic performance for your use-case since you'll still have to call it multiple times to search multiple lines. However, it would beat the above (cubic, on average) algorithm.
August 2018 I didn't find a working example on the iframe implementation. Other questions were related to Chrome only, which gave it away a little.
You'll have to mute sound mute=1
in order to autoplay on Chrome. FF and IE seem to be working just fine using autoplay=1
as parameter.
<iframe src="//www.youtube.com/embed/{{YOUTUBE-ID}}?autoplay=1&mute=1" name="youtube embed" allow="autoplay; encrypted-media" allowfullscreen></iframe>
There are two problems we need to solve
The first problem can be solved using qoomon's docker-host image, as given by other answers.
You will need to add this container to the same bridge network as your other container so that you can access it. Open a terminal inside your container and ensure that you can ping dockerhost
.
bash-5.0# ping dockerhost
PING dockerhost (172.20.0.2): 56 data bytes
64 bytes from 172.20.0.2: seq=0 ttl=64 time=0.523 ms
Now, the harder problem, making the service accessible to docker.
We can use telnet to check if we can access a port on the host (you may need to install this).
The problem is that our container will only be able to access services that bind to all interfaces, such as SSH:
bash-5.0# telnet dockerhost 22
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.3
But services bound only to localhost will be inaccessible:
bash-5.0# telnet dockerhost 1025
telnet: can't connect to remote host (172.20.0.2): Connection refused
The proper solution here would be to bind the service to dockers bridge network. However, this answer assumes that it is not possible for you to change this. So we will instead use iptables
.
First, we need to find the name of the bridge network that docker is using with ifconfig
. If you are using an unnamed bridge, this will just be docker0
. However, if you are using a named network you will have a bridge starting with br-
that docker will be using instead. Mine is br-5cd80298d6f4
.
Once we have the name of this bridge, we need to allow routing from this bridge to localhost. This is disabled by default for security reasons:
sysctl -w net.ipv4.conf.<bridge_name>.route_localnet=1
Now to set up our iptables
rule. Since our container can only access ports on the docker bridge network, we are going to pretend that our service is actually bound to a port on this network.
To do this, we will forward all requests to <docker_bridge>:port
to localhost:port
iptables -t nat -A PREROUTING -p tcp -i <docker_bridge_name> --dport <service_port> -j DNAT --to-destination 127.0.0.1:<service_port>
For example, for my service on port 1025
iptables -t nat -A PREROUTING -p tcp -i br-5cd80298d6f4 --dport 1025 -j DNAT --to-destination 127.0.0.1:1025
You should now be able to access your service from the container:
bash-5.0# telnet dockerhost 1025
220 127.0.0.1 ESMTP Service Ready
While this is old if someone comes across this again (via search). The correct answer with jQuery 1.7 onwards is now:
$('.pChk').click(function() {
if( $(this).is(':checked')) {
$("#ProjectListButton").show();
} else {
$("#ProjectListButton").hide();
}
});
The CSS place-items shorthand property sets the align-items and justify-items properties, respectively. If the second value is not set, the first value is also used for it.
.parent {
display: grid;
place-items: center;
}
There is a "way" to get some part of fan list with their profile ids of some fanpage without token.
https://www.facebook.com/{PAGENAME}
as in example below based on og tags present on the fanpage.<meta property="al:android:url" content="fb://profile/{PROFILE_ID}" />
And now is the best part: try to refresh (F5) the link in point 2.. There is a new full set of another fans of Coca-Cola. Take only uniques and you will be able to get some nice, almost full list of fans.
Why don't you use my ready PHP script to fetch some fans? :)
UPDATE 2016.04.30: Updated example script to use new methods after Facebook started to require access token to get public data from graph api.
function fetch_fb_fans($fanpage_name, $no_of_retries = 10, $pause = 500000 /* 500ms */){
$ret = array();
// prepare real like user agent and accept headers
$context = stream_context_create(array('http' => array('header' => 'User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/49.0.2623.108 Chrome/49.0.2623.108 Safari/537.36\r\nAccept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8\r\nAccept-encoding: gzip, deflate, sdch\r\nAccept-language: en-US,en;q=0.8,pl;q=0.6\r\n')));
// get page id from facebook html og tags for mobile apps
$fanpage_html = file_get_contents('https://www.facebook.com/' . $fanpage_name, false, $context);
if(!preg_match('{fb://page/(\d+)}', $fanpage_html, $id_matches)){
// invalid fanpage name
return $ret;
}
$url = 'http://www.facebook.com/plugins/fan.php?connections=100&id=' . $id_matches[1];
for($a = 0; $a < $no_of_retries; $a++){
$like_html = file_get_contents($url, false, $context);
preg_match_all('{href="https?://www\.facebook\.com/([a-zA-Z0-9\._-]+)" class="link" data-jsid="anchor" target="_blank"}', $like_html, $matches);
if(empty($matches[1])){
// failed to fetch any fans - convert returning array, cause it might be not empty
return array_keys($ret);
}else{
// merge profiles as array keys so they will stay unique
$ret = array_merge($ret, array_flip($matches[1]));
}
// don't get banned as flooder
usleep($pause);
}
return array_keys($ret);
}
print_r(fetch_fb_fans('TigerPolska', 2, 400000));
The delete[]
operator is used to delete arrays. The delete
operator is used to delete non-array objects. It calls operator delete[]
and operator delete
function respectively to delete the memory that the array or non-array object occupied after (eventually) calling the destructors for the array's elements or the non-array object.
The following shows the relations:
typedef int array_type[1];
// create and destroy a int[1]
array_type *a = new array_type;
delete [] a;
// create and destroy an int
int *b = new int;
delete b;
// create and destroy an int[1]
int *c = new int[1];
delete[] c;
// create and destroy an int[1][2]
int (*d)[2] = new int[1][2];
delete [] d;
For the new
that creates an array (so, either the new type[]
or new
applied to an array type construct), the Standard looks for an operator new[]
in the array's element type class or in the global scope, and passes the amount of memory requested. It may request more than N * sizeof(ElementType)
if it wants (for instance to store the number of elements, so it later when deleting knows how many destructor calls to done). If the class declares an operator new[]
that additional to the amount of memory accepts another size_t
, that second parameter will receive the number of elements allocated - it may use this for any purpose it wants (debugging, etc...).
For the new
that creates a non-array object, it will look for an operator new
in the element's class or in the global scope. It passes the amount of memory requested (exactly sizeof(T)
always).
For the delete[]
, it looks into the arrays' element class type and calls their destructors. The operator delete[]
function used is the one in the element type's class, or if there is none then in the global scope.
For the delete
, if the pointer passed is a base class of the actual object's type, the base class must have a virtual destructor (otherwise, behavior is undefined). If it is not a base class, then the destructor of that class is called, and an operator delete
in that class or the global operator delete
is used. If a base class was passed, then the actual object type's destructor is called, and the operator delete
found in that class is used, or if there is none, a global operator delete
is called. If the operator delete
in the class has a second parameter of type size_t
, it will receive the number of elements to deallocate.
Change the project interpreter to ~/anaconda2/python/bin
by going to File -> Settings -> Project -> Project Interpreter
. Also update the run configuration to use the project default Python interpreter via Run -> Edit Configurations
. This makes PyCharm
use Anaconda
instead of the default Python interpreter under usr/bin/python27
.
For JPA fixed using EntityManager merge() instead of persist()
EntityManager em = getEntityManager();
try {
em.getTransaction().begin();
em.merge(fieldValue);
em.getTransaction().commit();
} catch (Exception e) {
//do smthng
} finally {
em.close();
}
Assuming that you want all rows for which there is another row with the exact same Chromosome
and Locus
:
You can achieve this by joining the table to itself, but only returning the columns from one "side" of the join.
The trick is to set the join condition to "the same locus and chromosome":
select left.*
from Genes left
inner join Genes right
on left.Locus = right.Locus and
left.Chromosome = right.Chromosome and left.ID != right.ID
You can also easily extend this by adding a filter in a where
-clause.
Im putting this in an answer because it's too long for a comment:
If you need the VM to be aware when the CheckBox
is changed, you should really bind the CheckBox
to the VM, and not a static value:
public class ViewModel
{
private bool _caseSensitive;
public bool CaseSensitive
{
get { return _caseSensitive; }
set
{
_caseSensitive = value;
NotifyPropertyChange(() => CaseSensitive);
Settings.Default.bSearchCaseSensitive = value;
}
}
}
XAML:
<CheckBox Content="Case Sensitive" IsChecked="{Binding CaseSensitive}"/>
If you are parsing string data from the console or similar, the best way is to use regular expressions. Read more on that here: http://java.sun.com/developer/technicalArticles/releases/1.4regex/
Otherwise, to parse an int from a string, try Integer.parseInt(string). If the string is not a number, you will get an exception. Otherise you can then perform your checks on that value to make sure it is not negative.
String input;
int number;
try
{
number = Integer.parseInt(input);
if(number > 0)
{
System.out.println("You positive number is " + number);
}
} catch (NumberFormatException ex)
{
System.out.println("That is not a positive number!");
}
To get a character-only string, you would probably be better of looping over each character checking for digits, using for instance Character.isLetter(char).
String input
for(int i = 0; i<input.length(); i++)
{
if(!Character.isLetter(input.charAt(i)))
{
System.out.println("This string does not contain only letters!");
break;
}
}
Good luck!
on the form2.buttonclick put
this.close();
form1 should have object of form2.
you need to subscribe Closing event of form2.
and in closing method put
this.close();
You have to add the below permission in Info.plist. More Referance
Camera :
Key : Privacy - Camera Usage Description
Value : $(PRODUCT_NAME) camera use
Photo :
Key : Privacy - Photo Library Usage Description
Value : $(PRODUCT_NAME) photo use
Little Angular filter if anyone wants it:
angular.module('filters').filter('decimalPlace', function() {
return function(num, precision) {
var multiplier = Math.pow(10, precision || 0);
return Math.round(num * multiplier) / multiplier;
};
});
use if via:
{{model.value| decimalPlace}}
{{model.value| decimalPlace:1}}
{{model.value| decimalPlace:2}}
:)
This seems to be one of the hardest problems in CS ;)
Here's another incomplete solution that works well enough for me and better than the others I've seen here. I'm using a input[type=url] for this in order to support IE11, otherwise it would be much simpler using window.URL to perform the validation instead:
const ipv4Regex = /^(\d{1,3}\.){3}\d{1,3}$/;_x000D_
function isValidIpv4(ip) {_x000D_
if (!ipv4Regex.test(ip)) return false;_x000D_
return !ip.split('.').find(n => n > 255);_x000D_
}_x000D_
_x000D_
const domainRegex = /(?:[a-z0-9-]{1,63}\.){1,125}[a-z]{2,63}$/i;_x000D_
function isValidDomain(domain) {_x000D_
return isValidIpv4(domain) || domainRegex.test(domain);_x000D_
}_x000D_
_x000D_
let input;_x000D_
function validateUrl(url) {_x000D_
if (! /^https?:\/\//.test(url)) url = `http://${url}`; // assuming Babel is used_x000D_
// to support IE11 we'll resort to input[type=url] instead of window.URL:_x000D_
// try { return isValidDomain(new URL(url).host) && url; } catch(e) { return false; }_x000D_
if (!input) { input = document.createElement('input'); input.type = 'url'; }_x000D_
input.value = url;_x000D_
if (! input.validity.valid) return false;_x000D_
const domain = url.split(/^https?:\/\//)[1].split('/')[0].split('@').pop();_x000D_
return isValidDomain(domain) && url;_x000D_
}_x000D_
_x000D_
console.log(validateUrl('google'), // false_x000D_
validateUrl('user:[email protected]'),_x000D_
validateUrl('https://google.com'),_x000D_
validateUrl('100.100.100.100/abc'),_x000D_
validateUrl('100.100.100.256/abc')); // false
_x000D_
In order to accept incomplete inputs such as "www.mydomain.com" it will also make it valid assuming the protocol is "http" in those cases and returning the valid URL if the address is valid. It returns false when invalid.
It also supports IPv4 domains, but not IPv6.
IF you have array in your array, you'll have to adapt the function by Eran a little bit...
function sortArrayByArray($array,$orderArray) {
$ordered = array();
foreach($orderArray as $key => $value) {
if(array_key_exists($key,$array)) {
$ordered[$key] = $array[$key];
unset($array[$key]);
}
}
return $ordered + $array;
}
The whole thing to em is, that the size is relative to the base. So I would say you could keep the font sizes by altering the base.
Example: If you base is 16px, and p is .75em (which is 12px) you would have to raise the base to about 20px. In this case p would then equal about 15px which is the minimum I personally require for mobile phones.
The question is about SQL Server 2005, many of the answers here are for later version SQL Server.
select convert (varchar(7), getdate(),20)
--Typical output 2015-04
SQL Server 2005 does not have date function which was introduced in SQL Server 2008
You can handle the attribute onClick for both i.e. 'ok' & 'cancel' condition like ternary operator
Scenario: Here is the scenario that I wants to show confirm box which will ask for 'ok' or 'cancel' while performing a delete action. In that I want if user click on 'ok' then the form action will redirect to page location and on cancel page will not respond.
Adding further explanation i'm having one button with type="submit" which is originally use default form action of form tag. and I want above scenario on delete button with same input type.
So below code is working properly for me
onClick="return confirm('Are you sure you want to Delete ?')?this.form.action='<?php echo $_SERVER['PHP_SELF'] ?>':false;"
Full code
<input type="submit" name="action" id="Delete" value="Delete" onClick="return confirm('Are you sure you want to Delete ?')?this.form.action='<?php echo $_SERVER['PHP_SELF'] ?>':false;">
And by the way I'm implementing this code as inline in html element using PHP. so that's why I used 'echo $_SERVER['PHP_SELF']'.
I hope it will work for you also. Thank You
Or take the .not() method
$(".thisClass").not("#thisId").doAction();
Other way to solve the problem of space reclaiming is, Create multiple partitions within table - Range based, Value based partitions and just drop/truncate the partition to reclaim the space, which will release the space used by whole data stored in the particular partition.
There will be some changes needed in table schema when you introduce the partitioning for your table like - Unique Keys, Indexes to include partition column etc.
Yes its possible.
Return a RedirectToAction()
method like this:
return RedirectToAction("ActionOrViewName", "ControllerName");
If you dont have an entry point defined in your manifest invoking java -jar foo.jar
will not work.
Use this command if you dont have a manifest or to run a different main class than the one specified in the manifest:
java -cp foo.jar full.package.name.ClassName
See also instructions on how to create a manifest with an entry point: https://docs.oracle.com/javase/tutorial/deployment/jar/appman.html
1 Way
Use document.cloneNode()
Performance is:
Call to document.cloneNode()
took ~0.22499999977299012 milliseconds.
and maybe will be more.
var t0, t1, html;
t0 = performance.now();
html = document.cloneNode(true);
t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")
html.documentElement.innerHTML = '<!DOCTYPE html><html><head><title>Test</title></head><body><div id="test1">test1</div></body></html>';
console.log(html.getElementById("test1"));
_x000D_
2 Way
Use document.implementation.createHTMLDocument()
Performance is:
Call to document.implementation.createHTMLDocument()
took ~0.14000000010128133 milliseconds.
var t0, t1, html;
t0 = performance.now();
html = document.implementation.createHTMLDocument("test");
t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")
html.documentElement.innerHTML = '<!DOCTYPE html><html><head><title>Test</title></head><body><div id="test1">test1</div></body></html>';
console.log(html.getElementById("test1"));
_x000D_
3 Way
Use document.implementation.createDocument()
Performance is:
Call to document.implementation.createHTMLDocument()
took ~0.14000000010128133 milliseconds.
var t0 = performance.now();
html = document.implementation.createDocument('', 'html',
document.implementation.createDocumentType('html', '', '')
);
var t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")
html.documentElement.innerHTML = '<html><head><title>Test</title></head><body><div id="test1">test</div></body></html>';
console.log(html.getElementById("test1"));
4 Way
Use new Document()
Performance is:
Call to document.implementation.createHTMLDocument()
took ~0.13499999840860255 milliseconds.
ParentNode.append
is experimental technology in 2020 year.
var t0, t1, html;
t0 = performance.now();
//---------------
html = new Document();
html.append(
html.implementation.createDocumentType('html', '', '')
);
html.append(
html.createElement('html')
);
//---------------
t1 = performance.now();
console.log("Call to doSomething took " + (t1 - t0) + " milliseconds.")
html.documentElement.innerHTML = '<html><head><title>Test</title></head><body><div id="test1">test1</div></body></html>';
console.log(html.getElementById("test1"));
@Rollerball is right. The wait()
is called, so that the thread can wait for some condition to occur when this wait()
call happens, the thread is forced to give up its lock.
To give up something, you need to own it first. Thread needs to own the lock first.
Hence the need to call it inside a synchronized
method/block.
Yes, I do agree with all the above answers regarding the potential damages/inconsistencies if you did not check the condition within synchronized
method/block. However as @shrini1000 has pointed out, just calling wait()
within synchronized block will not avert this inconsistency from happening.
I recently posted a free software library for this: "html5csv.js" -- GitHub
It is intended to help streamline the creation of small simulator apps in Javascript that might need to import or export csv files, manipulate, display, edit the data, perform various mathematical procedures like fitting, etc.
After loading "html5csv.js" the problem of scanning a table and creating a CSV is a one-liner:
CSV.begin('#PrintDiv').download('MyData.csv').go();
Here is a JSFiddle demo of your example with this code.
Internally, for Firefox/Chrome this is a data URL oriented solution, similar to that proposed by @italo, @lepe, and @adeneo (on another question). For IE
The CSV.begin()
call sets up the system to read the data into an internal array. That fetch then occurs. Then the .download()
generates a data URL link internally and clicks it with a link-clicker. This pushes a file to the end user.
According to caniuse IE10 doesn't support <a download=...>
. So for IE my library calls navigator.msSaveBlob()
internally, as suggested by @Manu Sharma
In material ui, state of checkbox can be fetched as
this.refs.complete.state.switched
I wrote this function:
public static String encode(@NonNull String uriString) {
if (TextUtils.isEmpty(uriString)) {
Assert.fail("Uri string cannot be empty!");
return uriString;
}
// getQueryParameterNames is not exist then cannot iterate on queries
if (Build.VERSION.SDK_INT < 11) {
return uriString;
}
// Check if uri has valid characters
// See https://tools.ietf.org/html/rfc3986
Pattern allowedUrlCharacters = Pattern.compile("([A-Za-z0-9_.~:/?\\#\\[\\]@!$&'()*+,;" +
"=-]|%[0-9a-fA-F]{2})+");
Matcher matcher = allowedUrlCharacters.matcher(uriString);
String validUri = null;
if (matcher.find()) {
validUri = matcher.group();
}
if (TextUtils.isEmpty(validUri) || uriString.length() == validUri.length()) {
return uriString;
}
// The uriString is not encoded. Then recreate the uri and encode it this time
Uri uri = Uri.parse(uriString);
Uri.Builder uriBuilder = new Uri.Builder()
.scheme(uri.getScheme())
.authority(uri.getAuthority());
for (String path : uri.getPathSegments()) {
uriBuilder.appendPath(path);
}
for (String key : uri.getQueryParameterNames()) {
uriBuilder.appendQueryParameter(key, uri.getQueryParameter(key));
}
String correctUrl = uriBuilder.build().toString();
return correctUrl;
}
This actually is possible, and I discovered how quite by accident while designing my first large-scale responsive design site.
<div class="wrapper">
<div class="box">
<img src="/logo.png" alt="">
</div>
</div>
.wrapper { position:relative; overflow:hidden; }
.box { float:left; } //Note: 'float:right' would work too
.box > img { width:50%; }
The overflow:hidden gives the wrapper height and width, despite the floating contents, without using the clearfix hack. You can then position your content using margins. You can even make the wrapper div an inline-block.
Since Qt 5.5 you can use QTextStream::readLineInto
. It behaves similar to std::getline
and is maybe faster as QTextStream::readLine
, because it reuses the string:
QIODevice* device;
QTextStream in(&device);
QString line;
while (in.readLineInto(&line)) {
// ...
}
I believe that, if you need to use the %20
variant, you could perhaps use rawurlencode()
.
>>> import numpy
>>> print numpy.power.__doc__
power(x1, x2[, out])
First array elements raised to powers from second array, element-wise.
Raise each base in `x1` to the positionally-corresponding power in
`x2`. `x1` and `x2` must be broadcastable to the same shape.
Parameters
----------
x1 : array_like
The bases.
x2 : array_like
The exponents.
Returns
-------
y : ndarray
The bases in `x1` raised to the exponents in `x2`.
Examples
--------
Cube each element in a list.
>>> x1 = range(6)
>>> x1
[0, 1, 2, 3, 4, 5]
>>> np.power(x1, 3)
array([ 0, 1, 8, 27, 64, 125])
Raise the bases to different exponents.
>>> x2 = [1.0, 2.0, 3.0, 3.0, 2.0, 1.0]
>>> np.power(x1, x2)
array([ 0., 1., 8., 27., 16., 5.])
The effect of broadcasting.
>>> x2 = np.array([[1, 2, 3, 3, 2, 1], [1, 2, 3, 3, 2, 1]])
>>> x2
array([[1, 2, 3, 3, 2, 1],
[1, 2, 3, 3, 2, 1]])
>>> np.power(x1, x2)
array([[ 0, 1, 8, 27, 16, 5],
[ 0, 1, 8, 27, 16, 5]])
>>>
As per the discussed observation on numerical precision as per @GarethRees objection in comments:
>>> a = numpy.ones( (3,3), dtype = numpy.float96 ) # yields exact output
>>> a[0,0] = 0.46002700024131926
>>> a
array([[ 0.460027, 1.0, 1.0],
[ 1.0, 1.0, 1.0],
[ 1.0, 1.0, 1.0]], dtype=float96)
>>> b = numpy.power( a, 2 )
>>> b
array([[ 0.21162484, 1.0, 1.0],
[ 1.0, 1.0, 1.0],
[ 1.0, 1.0, 1.0]], dtype=float96)
>>> a.dtype
dtype('float96')
>>> a[0,0]
0.46002700024131926
>>> b[0,0]
0.21162484095102677
>>> print b[0,0]
0.211624840951
>>> print a[0,0]
0.460027000241
>>> c = numpy.random.random( ( 1000, 1000 ) ).astype( numpy.float96 )
>>> import zmq
>>> aClk = zmq.Stopwatch()
>>> aClk.start(), c**2, aClk.stop()
(None, array([[ ...]], dtype=float96), 5663L) # 5 663 [usec]
>>> aClk.start(), c*c, aClk.stop()
(None, array([[ ...]], dtype=float96), 6395L) # 6 395 [usec]
>>> aClk.start(), c[:,:]*c[:,:], aClk.stop()
(None, array([[ ...]], dtype=float96), 6930L) # 6 930 [usec]
>>> aClk.start(), c[:,:]**2, aClk.stop()
(None, array([[ ...]], dtype=float96), 6285L) # 6 285 [usec]
>>> aClk.start(), numpy.power( c, 2 ), aClk.stop()
(None, array([[ ... ]], dtype=float96), 384515L) # 384 515 [usec]
In Kotlin, use the following codes to get Application Name:
// Get App Name
var appName: String = ""
val applicationInfo = this.getApplicationInfo()
val stringId = applicationInfo.labelRes
if (stringId == 0) {
appName = applicationInfo.nonLocalizedLabel.toString()
}
else {
appName = this.getString(stringId)
}
I guess all other options would be more cryptic. For those who like readable and non-cryptic code:
IF "%ID%"=="0" (
REM do something
) ELSE IF "%ID%"=="1" (
REM do something else
) ELSE IF "%ID%"=="2" (
REM do another thing
) ELSE (
REM default case...
)
It's like an anecdote:
Magician: Put the egg under the hat, do the magic passes ... Remove the hat and ... get the same egg but in the side view ...
The IF
ELSE
solution isn't that bad. It's almost as good as python's if
elif
else
. More cryptic 'eggs' can be found here.
I found solution. It works fine when I throw away next line from form:
enctype="multipart/form-data"
And now it pass all parameters at request ok:
<form action="/registration" method="post">
<%-- error messages --%>
<div class="form-group">
<c:forEach items="${registrationErrors}" var="error">
<p class="error">${error}</p>
</c:forEach>
</div>
This is a variation to get all checked checkboxes in all_location_id
without using an "if" statement
var all_location_id = document.querySelectorAll('input[name="location[]"]:checked');
var aIds = [];
for(var x = 0, l = all_location_id.length; x < l; x++)
{
aIds.push(all_location_id[x].value);
}
var str = aIds.join(', ');
console.log(str);
A similar problem happened to me, I simply mixed the order of the callback params. Make sure your are setting up the callback functions in the correct order. At least for anyone having the same problem.
router.post('/', function(req, res){});
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<HTML>
<HEAD>
<STYLE type="text/css">
body
{
font-weight: bold;
}
</STYLE>
</HEAD>
<BODY>
Body text is now bold.
</BODY>
</HTML>
If you want:
underline, you can use 1 pixel height background image with repeat-x
and 100% 100%
position:
display: inline;
background: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAIAAAABCAYAAAD0In+KAAAAEUlEQVQIW2M0Lvz//2w/IyMAFJoEAis2CPEAAAAASUVORK5CYII=') repeat-x 100% 100%;
You can replace the second 100%
by something else like px
or em
to adjust the vertical position of the underline. Also you can use calc
if you want to add vertical padding, e.g.:
padding-bottom: 5px;
background-position-y: calc(100% - 5px);
Of course you can also make your own base64 png pattern with another color, height and design, e.g. here: http://www.patternify.com/ - just set square width & height at 2x1.
Source of inspiration: http://alistapart.com/article/customunderlines
I also had this problem and found the solution.
Below is the code which will work for iOS 8.0 and also for below versions.
I have tested it on iOS 7 and 8.0 (Xcode Version 6.0.1)
- (void)addButtonToKeyboard
{
// create custom button
self.doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
//This code will work on iOS 8.3 and 8.4.
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.3) {
self.doneButton.frame = CGRectMake(0, [[UIScreen mainScreen] bounds].size.height - 53, 106, 53);
} else {
self.doneButton.frame = CGRectMake(0, 163+44, 106, 53);
}
self.doneButton.adjustsImageWhenHighlighted = NO;
[self.doneButton setTag:67123];
[self.doneButton setImage:[UIImage imageNamed:@"doneup1.png"] forState:UIControlStateNormal];
[self.doneButton setImage:[UIImage imageNamed:@"donedown1.png"] forState:UIControlStateHighlighted];
[self.doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
// locate keyboard view
int windowCount = [[[UIApplication sharedApplication] windows] count];
if (windowCount < 2) {
return;
}
UIWindow *tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView *keyboard;
for (int i = 0; i < [tempWindow.subviews count]; i++) {
keyboard = [tempWindow.subviews objectAtIndex:i];
// keyboard found, add the button
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.3) {
UIButton *searchbtn = (UIButton *)[keyboard viewWithTag:67123];
if (searchbtn == nil)
[keyboard addSubview:self.doneButton];
} else {
if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES) {
UIButton *searchbtn = (UIButton *)[keyboard viewWithTag:67123];
if (searchbtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
[keyboard addSubview:self.doneButton];
} //This code will work on iOS 8.0
else if([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES) {
for (int i = 0; i < [keyboard.subviews count]; i++)
{
UIView *hostkeyboard = [keyboard.subviews objectAtIndex:i];
if([[hostkeyboard description] hasPrefix:@"<UIInputSetHost"] == YES) {
UIButton *donebtn = (UIButton *)[hostkeyboard viewWithTag:67123];
if (donebtn == nil)//to avoid adding again and again as per my requirement (previous and next button on keyboard)
[hostkeyboard addSubview:self.doneButton];
}
}
}
}
}
}
>
- (void)removedSearchButtonFromKeypad
{
int windowCount = [[[UIApplication sharedApplication] windows] count];
if (windowCount < 2) {
return;
}
UIWindow *tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
for (int i = 0 ; i < [tempWindow.subviews count] ; i++)
{
UIView *keyboard = [tempWindow.subviews objectAtIndex:i];
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.3){
[self removeButton:keyboard];
} else if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES) {
[self removeButton:keyboard];
} else if([[keyboard description] hasPrefix:@"<UIInputSetContainerView"] == YES){
for (int i = 0 ; i < [keyboard.subviews count] ; i++)
{
UIView *hostkeyboard = [keyboard.subviews objectAtIndex:i];
if([[hostkeyboard description] hasPrefix:@"<UIInputSetHost"] == YES) {
[self removeButton:hostkeyboard];
}
}
}
}
}
- (void)removeButton:(UIView *)keypadView
{
UIButton *donebtn = (UIButton *)[keypadView viewWithTag:67123];
if(donebtn) {
[donebtn removeFromSuperview];
donebtn = nil;
}
}
Hope this helps.
But , I still getting this warning:
Can't find keyplane that supports type 4 for keyboard iPhone-Portrait-NumberPad; using 3876877096_Portrait_iPhone-Simple-Pad_Default
Ignoring this warning, I got it working. Please, let me know if you able to get relief from this warning.
Rather give names of the column on which you want to merge:
exporttab <- merge(x=dwd_nogap, y=dwd_gap, by.x='x1', by.y='x2', fill=-9999)
CSS Grid layout
Like tables, grid layout enables an author to align elements into columns and rows.
https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout
To change the column sizes, take a look at the grid-template-columns
property.
dl {_x000D_
display: grid;_x000D_
grid-template-columns: max-content auto;_x000D_
}_x000D_
_x000D_
dt {_x000D_
grid-column-start: 1;_x000D_
}_x000D_
_x000D_
dd {_x000D_
grid-column-start: 2;_x000D_
}
_x000D_
<dl>_x000D_
<dt>Mercury</dt>_x000D_
<dd>Mercury (0.4 AU from the Sun) is the closest planet to the Sun and the smallest planet.</dd>_x000D_
<dt>Venus</dt>_x000D_
<dd>Venus (0.7 AU) is close in size to Earth, (0.815 Earth masses) and like Earth, has a thick silicate mantle around an iron core.</dd>_x000D_
<dt>Earth</dt>_x000D_
<dd>Earth (1 AU) is the largest and densest of the inner planets, the only one known to have current geological activity.</dd>_x000D_
</dl>
_x000D_
The spring docs are great on this: 3.8.1. BeanFactory or ApplicationContext?. They have a table with a comparison, I'll post a snippet:
Bean Factory
Application Context
So if you need any of the points presented on the Application Context side, you should use ApplicationContext.
This is annoying, I wish IntelliJ would handle this better than a startup nag..
If you are using TortoiseSVN 1.8+ on Windows, do this:
Modify
.C:\Program Files\TortoiseSVN\bin
to your Path
environment variable.git stash --include-untracked
You should use Application.Volatile
in the top of your function:
Function doubleMe(d)
Application.Volatile
doubleMe = d * 2
End Function
It will then reevaluate whenever the workbook changes (if your calculation is set to automatic).
Try this it works
<ul class="sub-menu" type="none">
<li class="sub-menu-list" ng-repeat="menu in list.components">
<a class="sub-menu-link">
{{ menu.component }}
</a>
</li>
</ul>
With PostgreSQL there are a number of date/time functions available, see here.
In your example, you could use:
SELECT * FROM myTable WHERE date_trunc('day', dt) = 'YYYY-MM-DD';
If you are running this query regularly, it is possible to create an index using the date_trunc
function as well:
CREATE INDEX date_trunc_dt_idx ON myTable ( date_trunc('day', dt) );
One advantage of this is there is some more flexibility with timezones if required, for example:
CREATE INDEX date_trunc_dt_idx ON myTable ( date_trunc('day', dt at time zone 'Australia/Sydney') );
SELECT * FROM myTable WHERE date_trunc('day', dt at time zone 'Australia/Sydney') = 'YYYY-MM-DD';
userType = (user.Type == 0) ? "Admin" : (user.type == 1) ? "User" : "Admin";
should do the trick.
The problem is a simple typo. You named your variable 'conc' on line 2 but then referenced 'conn' on line 4.
If you have already tried using the git add .
command to add all your untracked files, make sure you're not under a subfolder of your root project.
git add .
will stage all your files under the current subfolder.
Unless you are using Bytecode Enhancement, you cannot fetch lazily the parent-side @OneToOne
association.
However, most often, you don't even need the parent-side association if you use @MapsId
on the client side:
@Entity(name = "PostDetails")
@Table(name = "post_details")
public class PostDetails {
@Id
private Long id;
@Column(name = "created_on")
private Date createdOn;
@Column(name = "created_by")
private String createdBy;
@OneToOne(fetch = FetchType.LAZY)
@MapsId
private Post post;
public PostDetails() {}
public PostDetails(String createdBy) {
createdOn = new Date();
this.createdBy = createdBy;
}
//Getters and setters omitted for brevity
}
With @MapsId
, the id
property in the child table serves as both Primary Key and Foreign Key to the parent table Primary Key.
So, if you have a reference to the parent Post
entity, you can easily fetch the child entity using the parent entity identifier:
PostDetails details = entityManager.find(
PostDetails.class,
post.getId()
);
This way, you won't have N+1 query issues that could be caused by the mappedBy
@OneToOne
association on the parent side.
By default, the value property of input element cleared after selection of files if the input have multiple attributes. If you do not clean this property then "change" event will not be fired if you select the same file. You can manage this behavior using multiple
attribute.
<!-- will be cleared -->
<input type="file" onchange="yourFunction()" multiple/>
<!-- won't be cleared -->
<input type="file" onchange="yourFunction()"/>
You need to enable navigation and edit navigationText:
version 1.3.2
owlgraphic.com/owlcarousel/#customizing
Note: It appears the site for Owl 1.3 is now down, so here is a forked Codepen example.
$("#owl-example").owlCarousel({
navigation: true,
navigationText: ["<img src='myprevimage.png'>","<img src='mynextimage.png'>"]
});
version 2
:https://owlcarousel2.github.io/OwlCarousel2/docs/api-options.html#nav
$("#owl-example").owlCarousel({
nav: true,
navText: ["<img src='myprevimage.png'>","<img src='mynextimage.png'>"]
});
Personal suggestion: Use Slick over Owl
Personal suggestion update: Tiny slider is great too.
import javax.persistence.Id;
LINQ is very effective for juggling with collections.
Your types and structure are unclear to me, but I will try to fit your example to the best of my ability.
From your code it appears that, for each item, you are adding to that item everything from its own 'Enumerable' property. This is very simple:
foreach (var item in Enumerable)
{
item = item.AddRange(item.Enumerable));
}
As a more general example, let's say we want to iterate a collection and remove items where a certain condition is true. Avoiding foreach
, using LINQ:
myCollection = myCollection.Where(item => item.ShouldBeKept);
Add an item based on each existing item? No problem:
myCollection = myCollection.Concat(myCollection.Select(item => new Item(item.SomeProp)));
Of all the solutions given here and in other forums, I liked Mark Byers the most. That description actually made me think and code it myself.
Too bad I cannot voteup his solution as I am newbie.
Anyways here is my implementation of his description
public class PermTest {
public static void main(String[] args) throws Exception {
String str = "abcdef";
StringBuffer strBuf = new StringBuffer(str);
doPerm(strBuf,0);
}
private static void doPerm(StringBuffer str, int index){
if(index == str.length())
System.out.println(str);
else { //recursively solve this by placing all other chars at current first pos
doPerm(str, index+1);
for (int i = index+1; i < str.length(); i++) {//start swapping all other chars with current first char
swap(str,index, i);
doPerm(str, index+1);
swap(str,i, index);//restore back my string buffer
}
}
}
private static void swap(StringBuffer str, int pos1, int pos2){
char t1 = str.charAt(pos1);
str.setCharAt(pos1, str.charAt(pos2));
str.setCharAt(pos2, t1);
}
}
I prefer this solution ahead of the first one in this thread because this solution uses StringBuffer. I wouldn't say my solution doesn't create any temporary string (it actually does in system.out.println
where the toString()
of StringBuffer is called). But I just feel this is better than the first solution where too many string literals are created. May be some performance guy out there can evalute this in terms of 'memory' (for 'time' it already lags due to that extra 'swap')
table
in a div
(e.g. if the HTML is generated from Markdown) but still want to have scrollbars:table {_x000D_
display: block;_x000D_
max-width: -moz-fit-content;_x000D_
max-width: fit-content;_x000D_
margin: 0 auto;_x000D_
overflow-x: auto;_x000D_
white-space: nowrap;_x000D_
}
_x000D_
<table>_x000D_
<tr>_x000D_
<td>Especially on mobile, a table can easily become wider than the viewport.</td>_x000D_
<td>Using the right CSS, you can get scrollbars on the table without wrapping it.</td>_x000D_
</tr>_x000D_
</table>_x000D_
_x000D_
<table>_x000D_
<tr>_x000D_
<td>A centered table.</td>_x000D_
</tr>_x000D_
</table>
_x000D_
Explanation: display: block;
makes it possible to have scrollbars. By default (and unlike tables), blocks span the full width of the parent element. This can be prevented with max-width: fit-content;
, which allows you to still horizontally center tables with less content using margin: 0 auto;
. white-space: nowrap;
is optional (but useful for this demonstration).
On the top of the screen you can find the Finder. Click Go -> Go to Folder -> search ~/.m2
If it is not found, as m2
is a hidden file you need to enable visibility by typing the following command in terminal:
defaults write com.apple.finder AppleShowAllFiles YES
ALTER TABLE [table_name] ALTER COLUMN [column_name] varchar(150)
$.datepicker.regional["vi-VN"] = { closeText: "Ðóng", prevText: "Tru?c", nextText: "Sau", currentText: "Hôm nay", monthNames: ["Tháng m?t", "Tháng hai", "Tháng ba", "Tháng tu", "Tháng nam", "Tháng sáu", "Tháng b?y", "Tháng tám", "Tháng chín", "Tháng mu?i", "Tháng mu?i m?t", "Tháng mu?i hai"], monthNamesShort: ["M?t", "Hai", "Ba", "B?n", "Nam", "Sáu", "B?y", "Tám", "Chín", "Mu?i", "Mu?i m?t", "Mu?i hai"], dayNames: ["Ch? nh?t", "Th? hai", "Th? ba", "Th? tu", "Th? nam", "Th? sáu", "Th? b?y"], dayNamesShort: ["CN", "Hai", "Ba", "Tu", "Nam", "Sáu", "B?y"], dayNamesMin: ["CN", "T2", "T3", "T4", "T5", "T6", "T7"], weekHeader: "Tu?n", dateFormat: "dd/mm/yy", firstDay: 1, isRTL: false, showMonthAfterYear: false, yearSuffix: "" };
$.datepicker.setDefaults($.datepicker.regional["vi-VN"]);
There's also a DailyRollingFileAppender
Edit: after reading this worrying statement:
DailyRollingFileAppender has been observed to exhibit synchronization issues and data loss. The log4j extras companion includes alternatives which should be considered for new deployments and which are discussed in the documentation for org.apache.log4j.rolling.RollingFileAppender.
from the above URL (which I never realized before), then the log4j-extras looks to be a better option.
var str1 = "STACKOVERFLOW";_x000D_
var str2 = "OVER";_x000D_
if(str1.indexOf(str2) != -1){_x000D_
console.log(str2 + " found");_x000D_
}
_x000D_
You could let your DataAdapter
do the work. DataAdapter.Fill(DataTable)
will append your new rows to any existing rows in DataTable
.
Rune Kaagaard provided a great and compact solution that worked for me, I expanded on it a little:
def urljoin(*args):
trailing_slash = '/' if args[-1].endswith('/') else ''
return "/".join(map(lambda x: str(x).strip('/'), args)) + trailing_slash
This allows all arguments to be joined regardless of trailing and ending slashes while preserving the last slash if present.
With Android Studio 2.1 you can enable "Dex In Process" for faster app builds.
You can get more info about it here: https://medium.com/google-developers/faster-android-studio-builds-with-dex-in-process-5988ed8aa37e#.vijksflyn
No. HTML explicitly forbids nested forms.
From the HTML 5 draft:
Content model: Flow content, but with no form element descendants.
From the HTML 4.01 Recommendation:
<!ELEMENT FORM - - (%block;|SCRIPT)+ -(FORM) -- interactive form -->
(Note the -(FORM) section).
You could do something like this:
>>> j = [4, 5, 6, 7, 1, 3, 7, 5]
>>> sum(i > 5 for i in j)
3
It might initially seem strange to add True
to True
this way, but I don't think it's unpythonic; after all, bool
is a subclass of int
in all versions since 2.3:
>>> issubclass(bool, int)
True
I assume that the main idea is to find if number is negative and display it in correct format.
For those who use PHP5.3 might be interested in using Number Formatter Class - http://php.net/manual/en/class.numberformatter.php. This function, as well as range of other useful things, can format your number.
$profitLoss = 25000 - 55000;
$a= new \NumberFormatter("en-UK", \NumberFormatter::CURRENCY);
$a->formatCurrency($profitLoss, 'EUR');
// would display (€30,000.00)
Here also a reference to why brackets are used for negative numbers: http://www.open.edu/openlearn/money-management/introduction-bookkeeping-and-accounting/content-section-1.7
If your system is using dpkg and apt (debian, ubuntu, etc), try running the following commands in that order (be careful with the sudo rm
commands):
sudo apt-get -f install
sudo dpkg -P phpmyadmin
sudo rm -vf /etc/apache2/conf.d/phpmyadmin.conf
sudo rm -vfR /usr/share/phpmyadmin
sudo service apache2 restart
Have you tried Advanced Filter? Using your short list as the 'Criteria' and long list as the 'List Range'. Use the options: 'Filter in Place' and 'Unique Values'.
You should be presented with the list of unique values that only appear in your short list.
Alternatively, you can paste your Unique list to another location (on the same sheet), if you prefer. Choose the option 'Copy to another Location' and in the 'Copy to' box enter the cell reference (say F1) where you want the Unique list.
Note: this will work with the two columns (name/ID) too, if you select the two columns as both 'Criteria' and 'List Range'.
If using MacOSX, press control p
to cycle up and control n
to cycle down. I am using IDLE Python 3.4.1 Shell.
git checkout -b your-new-branch
git add <files>
git commit -m <message>
First, checkout your new branch. Then add all the files you want to commit to staging.
Lastly, commit all the files you just added. You might want to do a git push origin your-new-branch
afterward so your changes show up on the remote.
window.location.href = "/somewhere/else";
Simply go to project Explorer and change your View
from Android to project from drop Down and you are good to go.There you can simply create folder like we do in Eclipse.
And in android project view it is hidden but when you switch to project. You can create folder like drawable-hdpi,drawable-xhdpi
.
Edit (2017-10-12):
@MechaLynx and @Kevin-Weber note that unescape()
is deprecated from non-browser environments and does not exist in TypeScript. decodeURIComponent
is a drop-in replacement. For broader compatibility, use the below instead:
decodeURIComponent(JSON.parse('"http\\u00253A\\u00252F\\u00252Fexample.com"'));
> 'http://example.com'
Original answer:
unescape(JSON.parse('"http\\u00253A\\u00252F\\u00252Fexample.com"'));
> 'http://example.com'
You can offload all the work to JSON.parse
If you are using web api then you should make a http POST
call to URL : https://www.googleapis.com/oauth2/v4/token
with following request body
client_id: <YOUR_CLIENT_ID>
client_secret: <YOUR_CLIENT_SECRET>
refresh_token: <REFRESH_TOKEN_FOR_THE_USER>
grant_type: refresh_token
refresh token never expires so you can use it any number of times. The response will be a JSON like this:
{
"access_token": "your refreshed access token",
"expires_in": 3599,
"scope": "Set of scope which you have given",
"token_type": "Bearer"
}
Python 3.6 will add literal string interpolation similar to Ruby's string interpolation. Starting with that version of Python (which is scheduled to be released by the end of 2016), you will be able to include expressions in "f-strings", e.g.
name = "Spongebob Squarepants"
print(f"Who lives in a Pineapple under the sea? {name}.")
Prior to 3.6, the closest you can get to this is
name = "Spongebob Squarepants"
print("Who lives in a Pineapple under the sea? %(name)s." % locals())
The %
operator can be used for string interpolation in Python. The first operand is the string to be interpolated, the second can have different types including a "mapping", mapping field names to the values to be interpolated. Here I used the dictionary of local variables locals()
to map the field name name
to its value as a local variable.
The same code using the .format()
method of recent Python versions would look like this:
name = "Spongebob Squarepants"
print("Who lives in a Pineapple under the sea? {name!s}.".format(**locals()))
There is also the string.Template
class:
tmpl = string.Template("Who lives in a Pineapple under the sea? $name.")
print(tmpl.substitute(name="Spongebob Squarepants"))
Very useful I had a slightly different scenario where I the request xml was itself the body of the POST and not a param. For that the following code can be used - Posting as an answer just in case anyone else having similar issue will benefit.
final HttpHeaders headers = new HttpHeaders();
headers.add("header1", "9998");
headers.add("username", "xxxxx");
headers.add("password", "xxxxx");
headers.add("header2", "yyyyyy");
headers.add("header3", "zzzzz");
headers.setContentType(MediaType.APPLICATION_XML);
headers.setAccept(Arrays.asList(MediaType.APPLICATION_XML));
final HttpEntity<MyXmlbeansRequestDocument> httpEntity = new HttpEntity<MyXmlbeansRequestDocument>(
MyXmlbeansRequestDocument.Factory.parse(request), headers);
final ResponseEntity<MyXmlbeansResponseDocument> responseEntity = restTemplate.exchange(url, HttpMethod.POST, httpEntity,MyXmlbeansResponseDocument.class);
log.info(responseEntity.getBody());
Referring to the WHATWG (Writing a form's user interface) it is not wrong to put the input field inside the label. This saves you code because the for
attribute from the label
is no longer needed.
echo $'Create the snapshots\nSnapshot created\n'
I have tried all the solutions and this one worked for me
let temp = base64String.components(separatedBy: ",")
let dataDecoded : Data = Data(base64Encoded: temp[1], options:
.ignoreUnknownCharacters)!
let decodedimage = UIImage(data: dataDecoded)
yourImage.image = decodedimage
Adding the following two lines before importing pylab seems to work for me
import matplotlib
matplotlib.use("gtk")
import sys
import pylab
import numpy as np
Just a small addition to Jeff Bowman's excellent answer, as I found this question when searching for a solution to one of my own problems:
If a call to a method matches more than one mock's when
trained calls, the order of the when
calls is important, and should be from the most wider to the most specific. Starting from one of Jeff's examples:
when(foo.quux(anyInt(), anyInt())).thenReturn(true);
when(foo.quux(anyInt(), eq(5))).thenReturn(false);
is the order that ensures the (probably) desired result:
foo.quux(3 /*any int*/, 8 /*any other int than 5*/) //returns true
foo.quux(2 /*any int*/, 5) //returns false
If you inverse the when calls then the result would always be true
.
I've managed to achieve it with minimal effort (just as simple as with ASP.NET Core).
For that I use OWIN Startup.cs
file and Microsoft.Owin.Security.Jwt
library.
In order for the app to hit Startup.cs
we need to amend Web.config
:
<configuration>
<appSettings>
<add key="owin:AutomaticAppStartup" value="true" />
...
Here's how Startup.cs
should look:
using MyApp.Helpers;
using Microsoft.IdentityModel.Tokens;
using Microsoft.Owin;
using Microsoft.Owin.Security;
using Microsoft.Owin.Security.Jwt;
using Owin;
[assembly: OwinStartup(typeof(MyApp.App_Start.Startup))]
namespace MyApp.App_Start
{
public class Startup
{
public void Configuration(IAppBuilder app)
{
app.UseJwtBearerAuthentication(
new JwtBearerAuthenticationOptions
{
AuthenticationMode = AuthenticationMode.Active,
TokenValidationParameters = new TokenValidationParameters()
{
ValidAudience = ConfigHelper.GetAudience(),
ValidIssuer = ConfigHelper.GetIssuer(),
IssuerSigningKey = ConfigHelper.GetSymmetricSecurityKey(),
ValidateLifetime = true,
ValidateIssuerSigningKey = true
}
});
}
}
}
Many of you guys use ASP.NET Core nowadays, so as you can see it doesn't differ a lot from what we have there.
It really got me perplexed first, I was trying to implement custom providers, etc. But I didn't expect it to be so simple. OWIN
just rocks!
Just one thing to mention - after I enabled OWIN Startup NSWag
library stopped working for me (e.g. some of you might want to auto-generate typescript HTTP proxies for Angular app).
The solution was also very simple - I replaced NSWag
with Swashbuckle
and didn't have any further issues.
Ok, now sharing ConfigHelper
code:
public class ConfigHelper
{
public static string GetIssuer()
{
string result = System.Configuration.ConfigurationManager.AppSettings["Issuer"];
return result;
}
public static string GetAudience()
{
string result = System.Configuration.ConfigurationManager.AppSettings["Audience"];
return result;
}
public static SigningCredentials GetSigningCredentials()
{
var result = new SigningCredentials(GetSymmetricSecurityKey(), SecurityAlgorithms.HmacSha256);
return result;
}
public static string GetSecurityKey()
{
string result = System.Configuration.ConfigurationManager.AppSettings["SecurityKey"];
return result;
}
public static byte[] GetSymmetricSecurityKeyAsBytes()
{
var issuerSigningKey = GetSecurityKey();
byte[] data = Encoding.UTF8.GetBytes(issuerSigningKey);
return data;
}
public static SymmetricSecurityKey GetSymmetricSecurityKey()
{
byte[] data = GetSymmetricSecurityKeyAsBytes();
var result = new SymmetricSecurityKey(data);
return result;
}
public static string GetCorsOrigins()
{
string result = System.Configuration.ConfigurationManager.AppSettings["CorsOrigins"];
return result;
}
}
Another important aspect - I sent JWT Token via Authorization header, so typescript code looks for me as follows:
(the code below is generated by NSWag)
@Injectable()
export class TeamsServiceProxy {
private http: HttpClient;
private baseUrl: string;
protected jsonParseReviver: ((key: string, value: any) => any) | undefined = undefined;
constructor(@Inject(HttpClient) http: HttpClient, @Optional() @Inject(API_BASE_URL) baseUrl?: string) {
this.http = http;
this.baseUrl = baseUrl ? baseUrl : "https://localhost:44384";
}
add(input: TeamDto | null): Observable<boolean> {
let url_ = this.baseUrl + "/api/Teams/Add";
url_ = url_.replace(/[?&]$/, "");
const content_ = JSON.stringify(input);
let options_ : any = {
body: content_,
observe: "response",
responseType: "blob",
headers: new HttpHeaders({
"Content-Type": "application/json",
"Accept": "application/json",
"Authorization": "Bearer " + localStorage.getItem('token')
})
};
See headers part - "Authorization": "Bearer " + localStorage.getItem('token')
As we recently posted on the React blog, in the vast majority of cases you don't need getDerivedStateFromProps
at all.
If you just want to compute some derived data, either:
render
memoize-one
.Here's the simplest "after" example:
import memoize from "memoize-one";
class ExampleComponent extends React.Component {
getDerivedData = memoize(computeDerivedState);
render() {
const derivedData = this.getDerivedData(this.props.someValue);
// ...
}
}
Check out this section of the blog post to learn more.
Note if you want to count FULL 24h days between 2 dates, datediff can return wrong values for you.
As documentation states:
Only the date parts of the values are used in the calculation.
which results in
select datediff('2016-04-14 11:59:00', '2016-04-13 12:00:00')
returns 1 instead of expected 0.
Solution is using select timestampdiff(DAY, '2016-04-13 11:00:01', '2016-04-14 11:00:00');
(note the opposite order of arguments compared to datediff).
Some examples:
select timestampdiff(DAY, '2016-04-13 11:00:01', '2016-04-14 11:00:00');
returns 0select timestampdiff(DAY, '2016-04-13 11:00:00', '2016-04-14 11:00:00');
returns 1select timestampdiff(DAY, '2016-04-13 11:00:00', now());
returns how many full 24h days has passed since 2016-04-13 11:00:00 until now.Hope it will help someone, because at first it isn't much obvious why datediff returns values which seems to be unexpected or wrong.
Probably the "best" way to do this (quoted since "best" is a subjective term) is to keep a running (non-integral) tally of where you are, and round that value.
Then use that along with the history to work out what value should be used. For example, using the values you gave:
Value CumulValue CumulRounded PrevBaseline Need
--------- ---------- ------------ ------------ ----
0
13.626332 13.626332 14 0 14 ( 14 - 0)
47.989636 61.615968 62 14 48 ( 62 - 14)
9.596008 71.211976 71 62 9 ( 71 - 62)
28.788024 100.000000 100 71 29 (100 - 71)
---
100
At each stage, you don't round the number itself. Instead, you round the accumulated value and work out the best integer that reaches that value from the previous baseline - that baseline is the cumulative value (rounded) of the previous row.
This works because you're not losing information at each stage but rather using the information more intelligently. The 'correct' rounded values are in the final column and you can see that they sum to 100.
You can see the difference between this and blindly rounding each value, in the third value above. While 9.596008
would normally round up to 10
, the accumulated 71.211976
correctly rounds down to 71
- this means that only 9
is needed to add to the previous baseline of 62
.
This also works for "problematic" sequence like three roughly-1/3
values, where one of them should be rounded up:
Value CumulValue CumulRounded PrevBaseline Need
--------- ---------- ------------ ------------ ----
0
33.333333 33.333333 33 0 33 ( 33 - 0)
33.333333 66.666666 67 33 34 ( 67 - 33)
33.333333 99.999999 100 67 33 (100 - 67)
---
100
The rouine is pretty good, however it causes my app to hang, so I needed to add the case:
<xsl:when test="$text = '' or $replace = ''or not($replace)" >
<xsl:value-of select="$text" />
<!-- Prevent thsi routine from hanging -->
</xsl:when>
before the function gets called recursively.
I got the answer from here: When test hanging in an infinite loop
Thank you!
You can do this:
CSS:
#container {
height:175px;
}
#container h3{
position:absolute;
bottom:0;
left:0;
}
Then in HTML:
<div class="row">
<div class="col-sm-6">
<img src="//placehold.it/600x300" alt="Logo" />
</div>
<div id="container" class="col-sm-6">
<h3>Some Text</h3>
</div>
</div>
EDIT: add the <
Does this do what you want?
print range(0, (m+1)*n, n)[1:]
For m=5, n=20
[20, 40, 60, 80, 100]
Or better yet,
>>> print range(n, (m+1)*n, n)
[20, 40, 60, 80, 100]
For Python3+
>>> print(list(range(n, (m+1)*n, n)))
[20, 40, 60, 80, 100]
I used Jackson to convert Java Object to JSON string and send as follows.
PrintWriter out = response.getWriter();
ObjectMapper objectMapper= new ObjectMapper();
String jsonString = objectMapper.writeValueAsString(MyObject);
response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");
out.print(jsonString);
out.flush();
A void pointer is known as generic pointer. I would like to explain with a sample pthread scenario.
The thread function will have the prototype as
void *(*start_routine)(void*)
The pthread API designers considered the argument and return values of thread function. If those thing are made generic, we can type cast to void* while sending as argument. similarly the return value can be retrieved from void*(But i never used return values from thread function).
void *PrintHello(void *threadid)
{
long tid;
// ***Arg sent in main is retrieved ***
tid = (long)threadid;
printf("Hello World! It's me, thread #%ld!\n", tid);
pthread_exit(NULL);
}
int main (int argc, char *argv[])
{
pthread_t threads[NUM_THREADS];
int rc;
long t;
for(t=0; t<NUM_THREADS; t++){
//*** t will be type cast to void* and send as argument.
rc = pthread_create(&threads[t], NULL, PrintHello, (void *)t);
if (rc){
printf("ERROR; return code from pthread_create() is %d\n", rc);
exit(-1);
}
}
/* Last thing that main() should do */
pthread_exit(NULL);
}
To follow up on the comment by suhendri to Rory McCrossan answer. Here is an Action delegate example:
In child add:
public Action UpdateProgress; // In place of event handler declaration
// declare an Action delegate
.
.
.
private LoadData() {
this.UpdateProgress(); // call to Action delegate - MyMethod in
// parent
}
In parent add:
// The 3 lines in the parent becomes:
ChildClass child = new ChildClass();
child.UpdateProgress = this.MyMethod; // assigns MyMethod to child delegate
sometimes, you can use regex
>>> import re
>>> re.search('^\s*[0-9]',"0abc")
<_sre.SRE_Match object at 0xb7722fa8>
As the 'margin' doesn't work in Chrome, that's why I used 'border' instead.
br {
display: block;
content: "";
border-bottom: 10px solid transparent; // Works in Chrome/Safari
}
@-moz-document url-prefix() {
br {
margin-bottom: 10px; // As 'border-bottom' doesn't work in firefox and 'margin-bottom' doesn't work in Chrome/Safari.
}
}
DONT: This is not a solution!
My first approach was:
public int longToInt(long theLongOne) {
return Long.valueOf(theLongOne).intValue();
}
But that merely just casts the long to an int, potentially creating new Long
instances or retrieving them from the Long pool.
The drawbacks
Long.valueOf
creates a new Long
instance if the number is not within Long
's pool range [-128, 127].
The intValue
implementation does nothing more than:
return (int)value;
So this can be considered even worse than just casting the long
to int
.
I add those key in InfoPlist.strings
in iOS 8.4, iPad mini 2. It works too. I don't set any key, like NSLocationWhenInUseUsageDescription
, in my Info.plist
.
InfoPlist.strings:
"NSLocationWhenInUseUsageDescription" = "I need GPS information....";
Base on this thread, it said, as in iOS 7
, can be localized in the InfoPlist.strings. In my test, those keys can be configured directly in the file InfoPlist.strings
.
So the first thing you need to do is to add one or both of the > following keys to your Info.plist file:
- NSLocationWhenInUseUsageDescription
- NSLocationAlwaysUsageDescription
Both of these keys take a string which is a description of why you need location services. You can enter a string like “Location is required to find out where you are” which, as in iOS 7, can be localized in the InfoPlist.strings file.
UPDATE:
I think @IOS
's method is better. Add key to Info.plist
with empty value and add localized strings to InfoPlist.strings
.
We can use another way as well for example to insert the value with special characters 'Java_22 & Oracle_14' into db we can use the following format..
'Java_22 '||'&'||' Oracle_14'
Though it consider as 3 different tokens we dont have any option as the handling of escape sequence provided in the oracle documentation is incorrect.
Modify password for role postgres:
sudo -u postgres psql postgres
alter user postgres with password 'postgres';
Now connect to pgadmin using username postgres and password postgres
Now you can create roles & databases using pgAdmin
First, what is the result of git branch -a
on machine B?
Second, you have already deleted heads/devel
on origin
, so that's why you can't delete it from machine B.
Try
git branch -r -d origin/devel
or
git remote prune origin
or
git fetch origin --prune
and feel free to add --dry-run
to the end of your git
statement to see the result of running it without actually running it.
Docs for git remote prune
and git branch
.
Jack M. is right. Do it this way:
>>> class City:
... def __init__(self, city=None):
... self.city = city
... def __repr__(self):
... if self.city: return self.city
... return ''
...
>>> c = City('Berlin')
>>> print c
Berlin
>>> c = City()
>>> print c
>>>
You should be able to set the className property of the element. You could do a += to append it.
I had this concern when working on a Rails application with Docker.
My most preferred approach is to generally not use quotes. This includes not using quotes for:
${RAILS_ENV}
postgres-log:/var/log/postgresql
I, however, use double-quotes for integer
values that need to be converted to strings like:
version: "3.8"
"8080:8080"
However, for special cases like booleans
, floats
, integers
, and other cases, where using double-quotes for the entry values could be interpreted as strings
, please do not use double-quotes.
Here's a sample docker-compose.yml
file to explain this concept:
version: "3"
services:
traefik:
image: traefik:v2.2.1
command:
- --api.insecure=true # Don't do that in production
- --providers.docker=true
- --providers.docker.exposedbydefault=false
- --entrypoints.web.address=:80
ports:
- "80:80"
- "8080:8080"
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
That's all.
I hope this helps
If you are e using ES6+ - why not just use Array.filter
method?
Auction.auctions = Auction.auctions.filter((auction) => {
auction['seconds'] --;
return (auction.seconds > 0)
})
Note that modifying the array element during filter iteration only works for objects and will not work for array of primitive values.
Visual Studio Express SP1 Right click in Solution Explorer > References > Add Library Package Reference > EntityFramework
I am using CentOS 7.
$ cd /etc/profile.d
$ vim yourstuffs.sh
Type the following into the yourstuffs.sh script.
type whatever you want here to execute
export LD_LIBRARY_PATH=/usr/local/cuda-7.0/lib64:$LD_LIBRARY_PATH
Save and reboot the OS.
Functionality is supposed to be broken in jQuery 1.5.
Since jQuery 1.5.1 you should use xhrFields param.
$.ajaxSetup({
type: "POST",
data: {},
dataType: 'json',
xhrFields: {
withCredentials: true
},
crossDomain: true
});
Docs: http://api.jquery.com/jQuery.ajax/
Reported bug: http://bugs.jquery.com/ticket/8146
In my case, I was using Relative Layout
for a emptyString
After struggling on this for an hour. Only this worked for me:
android:layout_toRightOf="@id/welcome"
android:layout_toEndOf="@id/welcome"
android:layout_alignBaseline="@id/welcome"
layout_toRightOf
or layout_toEndOf
both works, but to support it better, I used both.
To make it more clear:
This was what I was trying to do:
And this was the emulator's output
Layout:
<TextView
android:id="@+id/welcome"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="16dp"
android:text="Welcome "
android:textSize="16sp" />
<TextView
android:id="@+id/username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignBaseline="@id/welcome"
android:layout_toRightOf="@id/welcome"
android:text="@string/emptyString"
android:textSize="16sp" />
Notice that:
android:layout_width="wrap_content"
worksGravity
is not usedYou can just use mkdir
and catch the error if the folder exists.
This is async (so best practice) and safe.
fs.mkdir('/path', err => {
if (err && err.code != 'EEXIST') throw 'up'
.. safely do your stuff here
})
(Optionally add a second argument with the mode.)
Other thoughts:
You could use then or await by using native promisify.
const util = require('util'), fs = require('fs');
const mkdir = util.promisify(fs.mkdir);
var myFunc = () => { ..do something.. }
mkdir('/path')
.then(myFunc)
.catch(err => { if (err.code != 'EEXIST') throw err; myFunc() })
You can make your own promise method, something like (untested):
let mkdirAsync = (path, mode) => new Promise(
(resolve, reject) => mkdir (path, mode,
err => (err && err.code !== 'EEXIST') ? reject(err) : resolve()
)
)
For synchronous checking, you can use:
fs.existsSync(path) || fs.mkdirSync(path)
Or you can use a library, the two most popular being
Check in the folder structure of the project the files within the /gradle/wrapper/ The gradle-wrapper.jar version should be the one specified in the gradle-wrapper.properties
If the problem is not solved by above answer, check whether the Windows SDK version is 10.0.15063.0.
Project -> Properties -> General -> Windows SDK Version -> select 10.0.15063.0
After this rebuild the solution.
You can also debug with chrome your html5 apps
I create a .bat to open chrome in debug mode
cd C:\Program Files (x86)\Google\Chrome\Application
chrome.exe "file:///C:\Users\***.html" --allow-file-access-from-files --disable-web-security
An "em" is a typographical unit of width, the width of a wide-ish letter like "m" pronounced "em". Similarly there is an "en". Similarly "en-dash" and "em-dash" for – and —
why do I have to pass seconds = uptime to timedelta
Because timedelta objects can be passed seconds, milliseconds, days, etc... so you need to specify what are you passing in (this is why you use the explicit key). Typecasting to int
is superfluous as they could also accept floats.
and why does the string casting works so nicely that I get HH:MM:SS ?
It's not the typecasting that formats, is the internal __str__
method of the object. In fact you will achieve the same result if you write:
print datetime.timedelta(seconds=int(uptime))
The following is the right method
$(document).ready(function() {
$('#btnSun').click(function(){
$(this).myFunction();
});
$.fn.myFunction = function() {
alert('hi');
}
});
You can also collect
with an appropriate summing collector like Collectors#summingInt(ToIntFunction)
Returns a
Collector
that produces the sum of a integer-valued function applied to the input elements. If no elements are present, the result is 0.
For example
Stream<Obj> filtered = list.stream().filter(o -> o.field > 10);
int sum = filtered.collect(Collectors.summingInt(o -> o.field));
Based on @EdChum's answer, you can try the following solution:
df[df.columns[pd.Series(df.columns).str.contains("foo")]]
This will be really helpful in case not all the columns you want to select start with foo
. This method selects all the columns that contain the substring foo
and it could be placed in at any point of a column's name.
In essence, I replaced .startswith()
with .contains()
.
I had the same problem and my problem had nothing to do with paths. One of my dll-s was written in c++ and it turnes out that if your visual studio doesn't know how to open a dll file it will say that it did not find it. What i did was locate which dll it did not find, than searched for that dll in my directories and opened it in a separate visual studio window. When trying to navigate through Solution explorer of that project, visual studio said that it cannot show what is inside and that i need some extra extensions, so that it can open those files. Surely enough, after installing the recomended extension (in my case something to do with c++) the
"This application has failed to start because xxx.dll was not found."
error miraculously dissapeared.
From my limited experience with python, is
is used to compare two objects to see if they are the same object as opposed to two different objects with the same value. ==
is used to determine if the values are identical.
Here is a good example:
>>> s1 = u'public'
>>> s2 = 'public'
>>> s1 is s2
False
>>> s1 == s2
True
s1
is a unicode string, and s2
is a normal string. They are not the same type, but are the same value.
You can still use the Authorization header with OAuth 2.0. There is a Bearer type specified in the Authorization header for use with OAuth bearer tokens (meaning the client app simply has to present ("bear") the token). The value of the header is the access token the client received from the Authorization Server.
It's documented in this spec: https://tools.ietf.org/html/rfc6750#section-2.1
E.g.:
GET /resource HTTP/1.1
Host: server.example.com
Authorization: Bearer mF_9.B5f-4.1JqM
Where mF_9.B5f-4.1JqM is your OAuth access token.
Simple thing I did after Someone said here to restart the VSCode and I did that, and now everything works fine.
For me it was because just when I was creating project I got an notification for updating my dart(or related) extension and for that I did it and boom as my project started, it just gave me around 30 errors which do scared but the simple FIX was to RESTART THE EDITOR.
This is badly formed HTML. You need to either have a single id or space separated classes. Either way if you're new I'd look into jQuery.
<div id="sub1">some text</div>
or
<div class="sub1 sub2 sub3">some text</div>
If you had the following HTML:
<div id="sub1">some text</div>
<div id="welcome" style="display:none;">Some welcome message</div>
$(document).ready(function() {
$('#sub1').hover(
function() { $('#welcome').show(); },
function() { $('#welcome').hide(); }
);
});
you'd probably want to include the events on your html:
<div id="sub1" onmouseover="showWelcome();" onmouseout="hideWelcome();">some text</div>
then your javascript would have these two functions
function showWelcome()
{
var welcome = document.getElementById('welcome');
welcome.style.display = 'block';
}
function hideWelcome()
{
var welcome = document.getElementById('welcome');
welcome.style.display = 'none';
}
Please note: this javascript doesn't take cross browser issues into consideration. for this you'd need to elaborate on your code, just another reason to use jquery.
Search All Files with Control+Shift+F or Console->[Search tab]
NOTE: Global Search shows up next to the CONSOLE menu
i installed Oracle virtualbox (Download link) then everything working fine
# To read data from csv file
Dataset = pd.read_csv('Data.csv')
X = Dataset.iloc[:, :-1].values
# To calculate mean use imputer class
from sklearn.impute import SimpleImputer
imputer = SimpleImputer(missing_values=np.nan, strategy='mean')
imputer = imputer.fit(X[:, 1:3])
X[:, 1:3] = imputer.transform(X[:, 1:3])
Here is my full post with topic: PHP find difference between two datetimes
USAGE EXAMPLE
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2017-08-30 00:01:59', 'Y-m-d H:i:s', false, '%a days %h hours');
#459 days 22 hours (string)
echo timeDifference('2016-05-27 02:00:00', 'Y-m-d H:i:s', '2016-05-27 07:00:00', 'Y-m-d H:i:s', true, 'hours',true);
#-5 (int)
How about this?
CREATE FUNCTION dbo.StripWWWandCom (@input VARCHAR(250))
RETURNS VARCHAR(250)
AS BEGIN
DECLARE @Work VARCHAR(250)
SET @Work = @Input
SET @Work = REPLACE(@Work, 'www.', '')
SET @Work = REPLACE(@Work, '.com', '')
RETURN @work
END
and then use:
SELECT ID, dbo.StripWWWandCom (WebsiteName)
FROM dbo.YourTable .....
Of course, this is severely limited in that it will only strip www.
at the beginning and .com
at the end - nothing else (so it won't work on other host machine names like smtp.yahoo.com
and other internet domains such as .org
, .edu
, .de
and etc.)
how do I programmatically add an event to the user's calendar?
Which calendar?
Is there a common API they all share?
No, no more than there is a "common API they all share" for Windows calendar apps. There are some common data formats (e.g., iCalendar) and Internet protocols (e.g., CalDAV), but no common API. Some calendar apps don't even offer an API.
If there are specific calendar applications you wish to integrate with, contact their developers and determine if they offer an API. So, for example, the Calendar application from the Android open source project, that Mayra cites, offers no documented and supported APIs. Google has even explicitly told developers to not use the techniques outlined in the tutorial Mayra cites.
Another option is for you to add events to the Internet calendar in question. For example, the best way to add events to the Calendar application from the Android open source project is to add the event to the user's Google Calendar via the appropriate GData APIs.
UPDATE
Android 4.0 (API Level 14) added a CalendarContract
ContentProvider
.
The easiest way that I know of to get the number of entries in a table is with '#'. #tableName gets the number of entries as long as they are numbered:
tbl={
[1]
[2]
[3]
[4]
[5]
}
print(#tbl)--prints the highest number in the table: 5
Sadly, if they are not numbered, it won't work.
My guess is that the directory ~/bin/sbt/bin is not in your PATH.
To execute programs or scripts that are in the current directory you need to prefix the command with ./, as in:
./sbt
This is a security feature in linux, so to prevent overriding of system commands (and other programs) by a malicious party dropping a file in your home directory (for example). Imagine a script called 'ls' that emails your /etc/passwd file to 3rd party before executing the ls command... Or one that executes 'rm -rf .'...
That said, unless you need something specific from the latest source code, you're best off doing what paradigmatic said in his post, and install it from the Typesafe repository.