An other solution (object-oriented) is to use DateTime::add
Example:
$now = new DateTime(); //current date/time
$now->add(new DateInterval("PT{$hours}H"));
$new_time = $now->format('Y-m-d H:i:s');
In my case I wanted to access an array inside a custom helper like so,
{{#ifCond arr.[@index] "foo" }}
Which did not work, but the answer suggested by @julesbou worked.
Working code:
{{#ifCond (lookup arr @index) "" }}
Hope this helps! Cheers.
Although ididak's response is pretty cool, and Handyman5 provides a script to use it, I found it a little restricted to use that approach.
Sometimes you need to search for something that can appear/disappear over time, so why not search against all commits? Besides that, sometimes you need a verbose response, and other times only commit matches. Here are two versions of those options. Put these scripts on your path:
git-find-file
for branch in $(git rev-list --all)
do
if (git ls-tree -r --name-only $branch | grep --quiet "$1")
then
echo $branch
fi
done
git-find-file-verbose
for branch in $(git rev-list --all)
do
git ls-tree -r --name-only $branch | grep "$1" | sed 's/^/'$branch': /'
done
Now you can do
$ git find-file <regex>
sha1
sha2
$ git find-file-verbose <regex>
sha1: path/to/<regex>/searched
sha1: path/to/another/<regex>/in/same/sha
sha2: path/to/other/<regex>/in/other/sha
See that using getopt you can modify that script to alternate searching all commits, refs, refs/heads, been verbose, etc.
$ git find-file <regex>
$ git find-file --verbose <regex>
$ git find-file --verbose --decorated --color <regex>
Checkout https://github.com/albfan/git-find-file for a possible implementation.
To download a file please use the following code ... Store the File name with location in $file variable. It supports all mime type
$file = "location of file to download"
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.basename($file));
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();
flush();
readfile($file);
To know about Mime types please refer to this link: http://php.net/manual/en/function.mime-content-type.php
I can't say for sure but after hours of random disconnections from my device (especially when trying to debug anything), I switched to a USB port that is NOT USB3.0 and that seem to solve the issue.
if you are building a maven project through a command console, make sure the following is at the end of the command:
eclipse:eclipse -Dwtpversion=2.0
Using the function above, you would do:
var myHash = new Hash('one',[1,10,5],'two', [2], 'three',[3,30,300]);
Of course, the following would also work:
var myHash = {}; // New object
myHash['one'] = [1,10,5];
myHash['two'] = [2];
myHash['three'] = [3, 30, 300];
since all objects in JavaScript are hash tables! It would, however, be harder to iterate over since using foreach(var item in object)
would also get you all its functions, etc., but that might be enough depending on your needs.
I encountered this insertion performance problem as well. My solution is spawn some go routines to finish the insertion work. In the meantime, SetMaxOpenConns
should be given a proper number otherwise too many open connection error would be alerted.
db, _ := sql.open()
db.SetMaxOpenConns(SOME CONFIG INTEGER NUMBER)
var wg sync.WaitGroup
for _, query := range queries {
wg.Add(1)
go func(msg string) {
defer wg.Done()
_, err := db.Exec(msg)
if err != nil {
fmt.Println(err)
}
}(query)
}
wg.Wait()
The loading speed is much faster for my project. This code snippet just gave an idea how it works. Readers should be able to modify it easily.
So, the concept of a "wildcard" in Regular Expressions works a bit differently. In order to match "any character" you would use "." The "*" modifier means, match any number of times.
try $conn = mysql_connect("localhost", "root")
or $conn = mysql_connect("localhost", "root", "")
You don't need to specify the module path per se. CMake ships with its own set of built-in find_package scripts, and their location is in the default CMAKE_MODULE_PATH.
The more normal use case for dependent projects that have been CMakeified would be to use CMake's external_project command and then include the Use[Project].cmake file from the subproject. If you just need the Find[Project].cmake script, copy it out of the subproject and into your own project's source code, and then you won't need to augment the CMAKE_MODULE_PATH in order to find the subproject at the system level.
you need the set key and value in foreach loop for that:
foreach($item AS $key -> $value) {
echo $value;
}
this should do the trick :)
Add a preview text input event. Like so: <TextBox PreviewTextInput="PreviewTextInput" />
.
Then inside that set the e.Handled
if the text isn't allowed. e.Handled = !IsTextAllowed(e.Text);
I use a simple regex in IsTextAllowed
method to see if I should allow what they've typed. In my case I only want to allow numbers, dots and dashes.
private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text
private static bool IsTextAllowed(string text)
{
return !_regex.IsMatch(text);
}
If you want to prevent pasting of incorrect data hook up the DataObject.Pasting
event DataObject.Pasting="TextBoxPasting"
as shown here (code excerpted):
// Use the DataObject.Pasting Handler
private void TextBoxPasting(object sender, DataObjectPastingEventArgs e)
{
if (e.DataObject.GetDataPresent(typeof(String)))
{
String text = (String)e.DataObject.GetData(typeof(String));
if (!IsTextAllowed(text))
{
e.CancelCommand();
}
}
else
{
e.CancelCommand();
}
}
<input type="file" id="picfile" name="picf" />
<input type="text" id="txtName" style="width: 144px;" />
$("#btncatsave").click(function () {
var Name = $("#txtName").val();
var formData = new FormData();
var totalFiles = document.getElementById("picfile").files.length;
var file = document.getElementById("picfile").files[0];
formData.append("FileUpload", file);
formData.append("Name", Name);
$.ajax({
type: "POST",
url: '/Category_Subcategory/Save_Category',
data: formData,
dataType: 'json',
contentType: false,
processData: false,
success: function (msg) {
alert(msg);
},
error: function (error) {
alert("errror");
}
});
});
[HttpPost]
public ActionResult Save_Category()
{
string Name=Request.Form[1];
if (Request.Files.Count > 0)
{
HttpPostedFileBase file = Request.Files[0];
}
}
Calling unshift
only returns the length of the new array.
So, to add an element in the beginning and to return a new array, I did this:
let newVal = 'someValue';
let array = ['hello', 'world'];
[ newVal ].concat(array);
or simply with spread operator:
[ newVal, ...array ]
This way, the original array remains untouched.
You can use (hidden) cells as variables. E.g., you could hide Column C, set C1 to
=20
and use it as
=c1*20
Alternatively you can write VBA Macros which set and read a global variable.
Edit: AKX renders my Answer partially incorrect. I had no idea you could name cells in Excel.
<script type="text/javascript">_x000D_
function get_param(param) {_x000D_
var search = window.location.search.substring(1);_x000D_
var compareKeyValuePair = function(pair) {_x000D_
var key_value = pair.split('=');_x000D_
var decodedKey = decodeURIComponent(key_value[0]);_x000D_
var decodedValue = decodeURIComponent(key_value[1]);_x000D_
if(decodedKey == param) return decodedValue;_x000D_
return null;_x000D_
};_x000D_
_x000D_
var comparisonResult = null;_x000D_
_x000D_
if(search.indexOf('&') > -1) {_x000D_
var params = search.split('&');_x000D_
for(var i = 0; i < params.length; i++) {_x000D_
comparisonResult = compareKeyValuePair(params[i]); _x000D_
if(comparisonResult !== null) {_x000D_
break;_x000D_
}_x000D_
}_x000D_
} else {_x000D_
comparisonResult = compareKeyValuePair(search);_x000D_
}_x000D_
_x000D_
return comparisonResult;_x000D_
}_x000D_
_x000D_
var parcelNumber = get_param('parcelNumber'); //abc_x000D_
var registryId = get_param('registryId'); //abc_x000D_
var registrySectionId = get_param('registrySectionId'); //abc_x000D_
var apartmentNumber = get_param('apartmentNumber'); //abc_x000D_
_x000D_
_x000D_
</script>
_x000D_
then in the page i call the values like so:
<td class="tinfodd"> <script type="text/javascript">_x000D_
document.write(registrySectionId)_x000D_
</script></td>
_x000D_
If you are using a new domain name, and you have done all the above and you are still getting the same error, check to see if you clear the DNS cache on your PC. Clear your DNS for more details.
Windows® 8
To clear your DNS cache if you use Windows 8, perform the following steps:
On your keyboard, press Win+X to open the WinX Menu.
Right-click Command Prompt and select Run as Administrator.
Run the following command:
ipconfig /flushdns
If the command succeeds, the system returns the following message:
Windows IP configuration successfully flushed the DNS Resolver Cache.
Windows® 7
To clear your DNS cache if you use Windows 7, perform the following steps:
Click Start.
Enter cmd in the Start menu search text box.
Right-click Command Prompt and select Run as Administrator.
Run the following command:
ipconfig /flushdns
If the command succeeds, the system returns the following message: Windows IP configuration successfully flushed the DNS Resolver Cache.
as described in http://channel9.msdn.com/posts/Anders-Hejlsberg-Steve-Lucco-and-Luke-Hoban-Inside-TypeScript at 00:33:52 they had built a tool to convert WebIDL and WinRT metadata into TypeScript d.ts
If you are using Spring MVC version 5 you can set the encoding also using the @GetMapping
annotation. Here is an example which sets the content type to JSON and also the encoding type to UTF-8:
@GetMapping(value="/rest/events", produces = "application/json; charset=UTF-8")
More information on the @GetMapping annotation here:
Here is full component example
import { Component } from '@angular/core';
@Component({
selector: 'app-text-box',
template: `
<h1>Text ({{textValue}})</h1>
<input #textbox type="text" [(ngModel)]="textValue" required>
<button (click)="logText(textbox.value)">Update Log</button>
<button (click)="textValue=''">Clear</button>
<h2>Template Reference Variable</h2>
Type: '{{textbox.type}}', required: '{{textbox.hasAttribute('required')}}',
upper: '{{textbox.value.toUpperCase()}}'
<h2>Log <button (click)="log=''">Clear</button></h2>
<pre>{{log}}</pre>`
})
export class TextComponent {
textValue = 'initial value';
log = '';
logText(value: string): void {
this.log += `Text changed to '${value}'\n`;
}
}
Since Docker ver. 1.13.0 (January 2017) there's the system prune
command:
$ docker system prune --help
Usage: docker system prune [OPTIONS]
Remove unused data
Options:
-a, --all Remove all unused images not just dangling ones
-f, --force Do not prompt for confirmation
--help Print usage
Using inline-block
allows for white-space in your HTML, This usually equates to .25em (or 4px).
You can either comment out the white-space or, a more commons solution, is to set the parent's font-size
to 0 and the reset it back to the required size on the inline-block elements.
You can do it with a little bit of refactoring:
public class MySQLDatabaseConnectionFactory implements DatabaseConnectionFactory {
@Override public Connection getConnection() {
try {
return _getConnection(...some params...);
} catch (SQLException e) {
throw new RuntimeException(e);
}
}
//method to forward parameters, enabling mocking, extension, etc
Connection _getConnection(...some params...) throws SQLException {
return DriverManager.getConnection(...some params...);
}
}
Then you can extend your class MySQLDatabaseConnectionFactory
to return a mocked connection, do assertions on the parameters, etc.
The extended class can reside within the test case, if it's located in the same package (which I encourage you to do)
public class MockedConnectionFactory extends MySQLDatabaseConnectionFactory {
Connection _getConnection(...some params...) throws SQLException {
if (some param != something) throw new InvalidParameterException();
//consider mocking some methods with when(yourMock.something()).thenReturn(value)
return Mockito.mock(Connection.class);
}
}
If you don't want the success message in the URL, then one option is to put it in the session (in the processForm method) and then check for it (and remove it) in the setupForm method.
Edited to add: if this is a pain to do manually, then you could write a subclass of RedirectView that adds a "message" attribute and wraps the process of inserting it into the session. Not sure, though, if there's an easy way to wrap getting the message back out of the session...
Honestly, I don't think there's an easy answer -- the nature of an HTTP redirect is that state isn't carried over; if you want to maintain state anyway, you're stuck with the various usual ways to maintain state in web applications: the session, a cookie, a querystring...
You can use setdefault
.
for line in list:
d.setdefault(year, []).append(value)
This works because setdefault returns the list as well as setting it on the dictionary, and because a list is mutable, appending to the version returned by setdefault is the same as appending it to the version inside the dictionary itself. If that makes any sense.
You have to check unique identifier column and you have to give a diff value to that particular field if you give the same value it will not work. It enforces uniqueness of the key.
Here is the code:
Insert into production.product
(Name,ProductNumber,MakeFlag,FinishedGoodsFlag,Color,SafetyStockLevel,ReorderPoint,StandardCost,ListPrice,Size
,SizeUnitMeasureCode,WeightUnitMeasureCode,Weight,DaysToManufacture,
ProductLine,
Class,
Style ,
ProductSubcategoryID
,ProductModelID
,SellStartDate
,SellEndDate
,DiscontinuedDate
,rowguid
,ModifiedDate
)
values ('LL lemon' ,'BC-1234',0,0,'blue',400,960,0.00,100.00,Null,Null,Null,null,1,null,null,null,null,null,'1998-06-01 00:00:00.000',null,null,'C4244F0C-ABCE-451B-A895-83C0E6D1F468','2004-03-11 10:01:36.827')
You could simply convert the datetime. Something like:
@Convert.ToString(string.Format("{0:dd/MM/yyyy}", Model.Returndate))
The invisibility can also be due to timing when the element is supposed to slowly appear. Forcing the browser to wait a bit might help in that case.
See, e.g., the question on letting WebDriver wait until an element is present.
There are a several things you need to address to get it working
@ouput
its @code
AddWithValue
since its not supposed to have a value just you Add
.ExecuteNonQuery
if you're not returning rows Try
SqlParameter output = new SqlParameter("@code", SqlDbType.Int);
output.Direction = ParameterDirection.Output;
cmd.Parameters.Add(output);
cmd.ExecuteNonQuery();
MessageBox.Show(output.Value.ToString());
I took a list and used,
!MyList.Contains(table.columb.tostring())
Note: Make sure to use List and not Ilist
This is the autofilter macro you could base a function off of:
Selection.AutoFilter
ActiveSheet.Range("$A$1:$A$10").AutoFilter Field:=1, Criteria1:="=*-*", Operator:=xlAnd
Selection.AutoFilter
I use this autofilter function to delete matching rows:
Public Sub FindDelete(sCol As String, vSearch As Variant)
'Simple find and Delete
Dim lLastRow As Integer
Dim rng As Range
Dim rngDelete As Range
Range(sCol & 1).Select
[2:2].Insert
Range(sCol & 2) = "temp"
With ActiveSheet
.usedrange
lLastRow = .Cells.SpecialCells(xlCellTypeLastCell).Row
Set rng = Range(sCol & 2, Cells(lLastRow, sCol))
rng.AutoFilter Field:=1, Criteria1:=vSearch, Operator:=xlAnd
Set rngDelete = rng.SpecialCells(xlCellTypeVisible)
rng.AutoFilter
rngDelete.EntireRow.Delete
.usedrange
End With
End Sub
call it like:
call FindDelete "A", "=*-*"
It's saved me a lot of work. Good luck!
I created this simple example from different search results on the internet.
public static ServiceHost CreateServiceHost(Type serviceInterface, Type implementation)
{
//Create base address
string baseAddress = "net.pipe://localhost/MyService";
ServiceHost serviceHost = new ServiceHost(implementation, new Uri(baseAddress));
//Net named pipe
NetNamedPipeBinding binding = new NetNamedPipeBinding { MaxReceivedMessageSize = 2147483647 };
serviceHost.AddServiceEndpoint(serviceInterface, binding, baseAddress);
//MEX - Meta data exchange
ServiceMetadataBehavior behavior = new ServiceMetadataBehavior();
serviceHost.Description.Behaviors.Add(behavior);
serviceHost.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexNamedPipeBinding(), baseAddress + "/mex/");
return serviceHost;
}
Using the above URI I can add a reference in my client to the web service.
Your Maven project doesn't seem to be configured as a Eclipse Java project, that is the Java nature is missing (the little 'J' in the project icon).
To enable this, the <packaging>
element in your pom.xml should be jar
(or similar).
Then, right-click the project and select Maven > Update Project Configuration
For this to work, you need to have m2eclipse installed. But since you had the _ New ... > New Maven Project_ wizard, I assume you have m2eclipse installed.
I was only interested for a trigger when a width of an element was changed (I don' care about height), so I created a jquery event that does exactly that, using an invisible iframe element.
$.event.special.widthChanged = {
remove: function() {
$(this).children('iframe.width-changed').remove();
},
add: function () {
var elm = $(this);
var iframe = elm.children('iframe.width-changed');
if (!iframe.length) {
iframe = $('<iframe/>').addClass('width-changed').prependTo(this);
}
var oldWidth = elm.width();
function elmResized() {
var width = elm.width();
if (oldWidth != width) {
elm.trigger('widthChanged', [width, oldWidth]);
oldWidth = width;
}
}
var timer = 0;
var ielm = iframe[0];
(ielm.contentWindow || ielm).onresize = function() {
clearTimeout(timer);
timer = setTimeout(elmResized, 20);
};
}
}
It requires the following css :
iframe.width-changed {
width: 100%;
display: block;
border: 0;
height: 0;
margin: 0;
}
You can see it in action here widthChanged fiddle
Yes you can. Assume a process foo
is running...
ps -elf | grep foo look for the PID number gdb -a {PID number}
I solved it by interfacing my program with a discord server, where it checks in a specific chat if the product key entered by the user exists and is still valid. In this way to receive a product key the user would be forced to hack discord and it is very difficult.
Quick fix. Create whole structure tr > td > button; then find button inside; attach event on it; end filtering of chain and at the and insert it into dom.
$("#myButton").click(function () {
var test = $('<tr><td><button>Test</button></td></tr>').find('button').click(function () {
alert('hi');
}).end();
$("#nodeAttributeHeader").attr('style', 'display: table-row;');
$("#addNodeTable tr:last").before(test);
});
I am able to have my emulator to run my app with Google Map V.2 (with Google Play Service V.4). I followed steps that others suggested with some failures, however I learned from it and somehow make it work. This is how:
First of all: You must have coded your map app. correctly with all the appropriate permissions setup in your metafile XML, and have Google Play Services APK part of your app. To verify this is true, you must run your app on REAL device and know it works with its map there. Then you can proceed to process your emulator as shown below.
Create a new emulator, or use your existing emulator with specs:
Run you emulator (your target emulator must be running!)
Download the following APKs (available via dropbox per 4/2/2013) to your local directory (scan for virus!):
com.android.vending.apk, (Google Play Store, v.3.10.9)
com.google.android.gms.apk, (Google Play Service, v.2.0.12)
Install these two APK into your running (target) emulator with ADB command:
DOS/Console Prompt> adb -e install [path-to-APK-file]
NOTE: Possibly, you have had these APKs installed in your emulator during this trial-error, and need to re-install for some reason. You must uninstall them first by: adb -e uninstall (com.google.android.gms or com.android.vending)
Here, it is where things could get tricky. You think you were done, but when you open your app with Map again, but all you get is an error saying something in the form of: "Google Play services out of date. Requires 2012100 but found 2010110", and may see a button to "Update" Google Play. If this is the case, do NOT attempt to click the update button since it won't do anything. I got this error too, and I resolved it by both of these additional steps:
That's it, it works now nicely.
Just bumped into this post, by getting the same error, trying to test if two variables are both empty (or non-empty). That turns out to be a compound comparison - 7.3. Other Comparison Operators - Advanced Bash-Scripting Guide; and I thought I should note the following:
-e
-z
for testing empty variable (string)test
s and &&
them: [ ... ] && [ ... ]
-a
operator in a single test
: [ ... -a ... ]
Here is a working command (searching through all txt files in a directory, and dumping those that grep
finds contain both of two words):
find /usr/share/doc -name '*.txt' | while read file; do \
a1=$(grep -H "description" $file); \
a2=$(grep -H "changes" $file); \
[ ! -z "$a1" -a ! -z "$a2" ] && echo -e "$a1 \n $a2" ; \
done
Edit 12 Aug 2013: related problem note:
Note that when checking string equality with classic test
(single square bracket [
), you MUST have a space between the "is equal" operator, which in this case is a single "equals" =
sign (although two equals' signs ==
seem to be accepted as equality operator too). Thus, this fails (silently):
$ if [ "1"=="" ] ; then echo A; else echo B; fi
A
$ if [ "1"="" ] ; then echo A; else echo B; fi
A
$ if [ "1"="" ] && [ "1"="1" ] ; then echo A; else echo B; fi
A
$ if [ "1"=="" ] && [ "1"=="1" ] ; then echo A; else echo B; fi
A
... but add the space - and all looks good:
$ if [ "1" = "" ] ; then echo A; else echo B; fi
B
$ if [ "1" == "" ] ; then echo A; else echo B; fi
B
$ if [ "1" = "" -a "1" = "1" ] ; then echo A; else echo B; fi
B
$ if [ "1" == "" -a "1" == "1" ] ; then echo A; else echo B; fi
B
Simple: [boolean](get-variable "Varname" -ErrorAction SilentlyContinue)
For some reason none of the above fixes worked for me (I had the same problem), but this did:
Try putting all of the floated elements in a div element:
<div class="row">...</div>
.
Then add this CCS:
.row::after {content: ""; clear: both; display: table;}
Create a css and set the value style="width:50px;"
in css code. Call the class of CSS in the drop down list. Then it will work.
Sometimes I have this error when videostream from imutils package doesn't recognize frame or give an empty frame. In that case, solution will be figuring out why you have such a bad frame or use a standard VideoCapture(0) method from opencv2
Oracle have announced a "statement of direction" for ODP.net and the Entity Framework:
In summary, ODP.Net beta around the end of 2010, production sometime in 2011.
Not tested but this should work:
/\?v=([a-z0-9\-]+)\&?/i
window.setTimeout(func,1000);
This will run func after 1000 milliseconds. So at the end of func you can call window.setTimeout again to go in a loop of 1 sec. You just need to define a terminate condition.
Simple function for Get cookie with cookie name:
function getCookie(cn) {
var name = cn+"=";
var allCookie = decodeURIComponent(document.cookie).split(';');
var cval = [];
for(var i=0; i < allCookie.length; i++) {
if (allCookie[i].trim().indexOf(name) == 0) {
cval = allCookie[i].trim().split("=");
}
}
return (cval.length > 0) ? cval[1] : "";
}
You could compile and link in one command:
gcc file1.c file2.c -o myprogram
And run with:
./myprogram
But to answer the question as asked, simply pass the object files to gcc
:
gcc file1.o file2.o -o myprogram
It's a very late answer but I resolved the issue turning off the lazy loading:
db.Configuration.LazyLoadingEnabled = false;
It sounds like you want something like:
var query = from order in workOrders
join plan in plans
on order.WorkOrderNumber equals plan.WorkOrderNumber
select new
{
order.WorkOrderNumber,
order.Description,
plan.ScheduledDate
};
When calling java use the -Xmx Flag for example -Xmx512m for 512 megs for the heap size. You may also want to consider the -xms flag to start the heap larger if you are going to have it grow right from the start. The default size is 128megs.
- Where does
user.id
go afterpassport.serializeUser
has been called?
The user id (you provide as the second argument of the done
function) is saved in the session and is later used to retrieve the whole object via the deserializeUser
function.
serializeUser
determines which data of the user object should be stored in the session. The result of the serializeUser method is attached to the session as req.session.passport.user = {}
. Here for instance, it would be (as we provide the user id as the key) req.session.passport.user = {id: 'xyz'}
- We are calling
passport.deserializeUser
right after it where does it fit in the workflow?
The first argument of deserializeUser
corresponds to the key of the user object that was given to the done
function (see 1.). So your whole object is retrieved with help of that key. That key here is the user id (key can be any key of the user object i.e. name,email etc).
In deserializeUser
that key is matched with the in memory array / database or any data resource.
The fetched object is attached to the request object as req.user
Visual Flow
passport.serializeUser(function(user, done) {
done(null, user.id);
}); ¦
¦
¦
+--------------------? saved to session
¦ req.session.passport.user = {id: '..'}
¦
?
passport.deserializeUser(function(id, done) {
+---------------+
¦
?
User.findById(id, function(err, user) {
done(err, user);
}); +--------------? user object attaches to the request as req.user
});
I think if you add margin: auto; to the div below it should work.
div#iframe-wrapper iframe {
position: absolute;
top: 0;
bottom: 0;
left: 0;
margin: auto;
right: 100px;
height: 100%;
width: 100%;
}
FILE1 = /usr/bin/perl
FILE2 = /nofile
ifeq ($(shell test -e $(FILE1) && echo -n yes),yes)
RESULT1=$(FILE1) exists.
else
RESULT1=$(FILE1) does not exist.
endif
ifeq ($(shell test -e $(FILE2) && echo -n yes),yes)
RESULT2=$(FILE2) exists.
else
RESULT2=$(FILE2) does not exist.
endif
all:
@echo $(RESULT1)
@echo $(RESULT2)
execution results:
bash> make
/usr/bin/perl exists.
/nofile does not exist.
I realize you needed a solution for IE6/7 but I'm just throwing this out for anyone else.
If you can't use table-layout: fixed
and you don't care about IE < 9 this works for all browsers.
td {
overflow-x: hidden;
overflow-y: hidden;
white-space: nowrap;
max-width: 30px;
}
Use the --force
(-f
) flag on your mysql import. Rather than stopping on the offending statement, MySQL will continue and just log the errors to the console.
For example:
mysql -u userName -p -f -D dbName < script.sql
You should use the excellent OpenCSV for reading and writing CSV files. To adapt your example to use the library it would look like this:
public class ParseCSV {
public static void main(String[] args) {
try {
//csv file containing data
String strFile = "C:/Users/rsaluja/CMS_Evaluation/Drupal_12_08_27.csv";
CSVReader reader = new CSVReader(new FileReader(strFile));
String [] nextLine;
int lineNumber = 0;
while ((nextLine = reader.readNext()) != null) {
lineNumber++;
System.out.println("Line # " + lineNumber);
// nextLine[] is an array of values from the line
System.out.println(nextLine[4] + "etc...");
}
}
}
}
I found this solution for my project
I just set the minimum SDK version to 21 and that solves my problem
android {
defaultConfig {
...
minSdkVersion 21 //set the minimum sdk version 21
targetSdkVersion 29
}
...
}
if your minSdkVersion is 21 or higher multidex is enabled by default, and you do not need the multidex support library. To read more about multidex https://developer.android.com/studio/build/multidex.html
I have written comments below to understand code sample. Some one if using, they can follow it , as I named the files accordingly.
IF server is sending blob in the response, then our client should be able to produce it.
As my purpose is solved by using these. I can able to download files, as I have used type: 'application/*' for all files.
Created "downloadLink" variable is just technique used in response so that, it would fill like some clicked on link, then response comes and then its href would be triggered.
controller.js_x000D_
//this function is in controller, which will be trigered on download button hit. _x000D_
_x000D_
$scope.downloadSampleFile = function() {_x000D_
//create sample hidden link in document, to accept Blob returned in the response from back end_x000D_
_x000D_
var downloadLink = document.createElement("a");_x000D_
_x000D_
document.body.appendChild(downloadLink);_x000D_
downloadLink.style = "display: none";_x000D_
_x000D_
//This service is written Below how does it work, by aceepting necessary params_x000D_
downloadFile.downloadfile(data).then(function (result) {_x000D_
_x000D_
var fName = result.filename;_x000D_
var file = new Blob([result.data], {type: 'application/*'});_x000D_
var fileURL = (window.URL || window.webkitURL).createObjectURL(file);_x000D_
_x000D_
_x000D_
//Blob, client side object created to with holding browser specific download popup, on the URL created with the help of window obj._x000D_
_x000D_
downloadLink.href = fileURL;_x000D_
downloadLink.download = fName;_x000D_
downloadLink.click();_x000D_
});_x000D_
};_x000D_
_x000D_
_x000D_
_x000D_
_x000D_
services.js_x000D_
_x000D_
.factory('downloadFile', ["$http", function ($http) {_x000D_
return {_x000D_
downloadfile : function () {_x000D_
return $http.get(//here server endpoint to which you want to hit the request_x000D_
, {_x000D_
responseType: 'arraybuffer',_x000D_
params: {_x000D_
//Required params_x000D_
},_x000D_
}).then(function (response, status, headers, config) {_x000D_
return response;_x000D_
});_x000D_
},_x000D_
};_x000D_
}])
_x000D_
Default sorting is ascending, you need to add the keyword DESC to both your orders:
ORDER BY article_rating DESC, article_time DESC
The question is dead but still knowing one more way doesn't hurt:
my_list = [ (old1, new1), (old2, new2), (old3, new3), ... (oldN, newN)]
for first,*args in my_list:
if first == Value:
PAIR_FOUND = True
MATCHING_VALUE = args
break
GitHub is the entire site. Gists are a particular service offered on that site, namely code snippets akin to pastebin. However, everything is driven by git revision control, so gists also have complete revision histories.
You can use CSS gradient - although there are not consistent across browsers so You would have to code it for every one
Like that: CSS3 Transparency + Gradient
Gradient should be more transparent on top or on top right corner (depending on capabilities)
Yes,
You are trying to access an element of the list that does not exist.
MyList = ["item1", "item2"]
print MyList[0] # Will work
print MyList[1] # Will Work
print MyList[2] # Will crash.
Have you got an off-by-one error?
Chrome only
As I'm trying to remove an EventListener within a Protractor test and do not have access to the Listener in the test, the following works to remove all event listeners of a single type:
function(eventType){
getEventListeners(window).[eventType].forEach(
function(e){
window.removeEventListener(eventType, e.listener)
}
);
}
I hope this helps someone as previous answer were using the "remove" method which since then does not work anymore.
You can use:
git rev-parse --is-inside-work-tree
Which will print 'true' if you are in a git repos working tree.
Note that it still returns output to STDERR if you are outside of a git repo (and does not print 'false').
Taken from this answer: https://stackoverflow.com/a/2044714/12983
In computer science terms, a Task
is a future or a promise. (Some people use those two terms synonymously, some use them differently, nobody can agree on a precise definition.) Basically, a Task<T>
"promises" to return you a T
, but not right now honey, I'm kinda busy, why don't you come back later?
A Thread
is a way of fulfilling that promise. But not every Task
needs a brand-new Thread
. (In fact, creating a thread is often undesirable, because doing so is much more expensive than re-using an existing thread from the thread pool. More on that in a moment.) If the value you are waiting for comes from the filesystem or a database or the network, then there is no need for a thread to sit around and wait for the data when it can be servicing other requests. Instead, the Task
might register a callback to receive the value(s) when they're ready.
In particular, the Task
does not say why it is that it takes such a long time to return the value. It might be that it takes a long time to compute, or it might that it takes a long time to fetch. Only in the former case would you use a Thread
to run a Task
. (In .NET, threads are freaking expensive, so you generally want to avoid them as much as possible and really only use them if you want to run multiple heavy computations on multiple CPUs. For example, in Windows, a thread weighs 12 KiByte (I think), in Linux, a thread weighs as little as 4 KiByte, in Erlang/BEAM even just 400 Byte. In .NET, it's 1 MiByte!)
In PL/SQL you can't use operators such as '=' or '<>' to test for NULL
because all comparisons to NULL
return NULL
. To compare something against NULL
you need to use the special operators IS NULL
or IS NOT NULL
which are there for precisely this purpose. Thus, instead of writing
IF var = NULL THEN...
you should write
IF VAR IS NULL THEN...
In the case you've given you also have the option of using the NVL
built-in function. NVL
takes two arguments, the first being a variable and the second being a value (constant or computed). NVL
looks at its first argument and, if it finds that the first argument is NULL
, returns the second argument. If the first argument to NVL
is not NULL
, the first argument is returned. So you could rewrite
IF var IS NULL THEN
var := 5;
END IF;
as
var := NVL(var, 5);
I hope this helps.
And because it's nearly ten years since I wrote this answer, let's celebrate by expanding it just a bit.
The COALESCE
function is the ANSI equivalent of Oracle's NVL
. It differs from NVL
in a couple of IMO good ways:
It takes any number of arguments, and returns the first one which is not NULL. If all the arguments passed to COALESCE
are NULL, it returns NULL.
In contrast to NVL
, COALESCE
only evaluates arguments if it must, while NVL
evaluates both of its arguments and then determines if the first one is NULL, etc. So COALESCE
can be more efficient, because it doesn't spend time evaluating things which won't be used (and which can potentially cause unwanted side effects), but it also means that COALESCE
is not a 100% straightforward drop-in replacement for NVL
.
I tried many things (even those included in this post) but nothing worked. I decided to clear the data for the google account manager since so many mentioned to delete the account and recreate the account. It worked for my Nexus 7 (Android 4.2.2). Received 17 updates :-).
Go to Settings ? Apps ? ALL ? Google Account Manager ? Clear Data.
Reboot device.
Done.
How about writing out some escape sequences?
echo "\033[01;31m Request has been sent. Please wait for my reply! \033[0m";
Won't work through browser though, only from console ;))
EDIT: As noted in comments, these days I'm happy to use Interlocked
for the cases of a single variable where it's obviously okay. When it gets more complicated, I'll still revert to locking...
Using volatile
won't help when you need to increment - because the read and the write are separate instructions. Another thread could change the value after you've read but before you write back.
Personally I almost always just lock - it's easier to get right in a way which is obviously right than either volatility or Interlocked.Increment. As far as I'm concerned, lock-free multi-threading is for real threading experts, of which I'm not one. If Joe Duffy and his team build nice libraries which will parallelise things without as much locking as something I'd build, that's fabulous, and I'll use it in a heartbeat - but when I'm doing the threading myself, I try to keep it simple.
just go to google docs and paste this as a formula, where URL is a link to your img
=image("URL", 1)
afterwards, from google docs options, download for excel and you'll have your image on the cell EDIT Per comments, you dont need to keep the image URL alive that long, just long enough for the excel to download it. Then it will stay embedded on the file.
According to the spec
Dynamically modifying a source element and its attribute when the element is already inserted in a video or audio element will have no effect. To change what is playing, just use the src attribute on the media element directly, possibly making use of the canPlayType() method to pick from amongst available resources. Generally, manipulating source elements manually after the document has been parsed is an unncessarily complicated approach.
So what you are trying to do is apparently not supposed to work.
The MemoryError
exception that you are seeing is the direct result of running out of available RAM. This could be caused by either the 2GB per program limit imposed by Windows (32bit programs), or lack of available RAM on your computer. (This link is to a previous question).
You should be able to extend the 2GB by using 64bit copy of Python, provided you are using a 64bit copy of windows.
The IndexError
would be caused because Python hit the MemoryError
exception before calculating the entire array. Again this is a memory issue.
To get around this problem you could try to use a 64bit copy of Python or better still find a way to write you results to file. To this end look at numpy's memory mapped arrays.
You should be able to run you entire set of calculation into one of these arrays as the actual data will be written disk, and only a small portion of it held in memory.
You can do the following:
df =DataFrame({'a':[1,2,3,4],'b':[2,4,6,8]})
df['x']=df.a + df.b
df['y']=df.a - df.b
create column title whatever order you want in this way:
column_titles = ['x','y','a','b']
df.reindex(columns=column_titles)
This will give you desired output
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
$(document).on('click', '.close', function(){
var rowid='row'+this.id;
var sl = '#tblData tr[id='+rowid+']';
console.log(sl);
$(sl).remove();
});
$("#addrow").click(function(){
var row='';
for(var i=0;i<10;i++){
row=i;
row='<tr id=row'+i+'>'
+ '<td>'+i+'</td>'
+ '<td>ID'+i+'</td>'
+ '<td>NAME'+i+'</td>'
+ '<td><input class=close type=button id='+i+' value=X></td>'
+'</tr>';
console.log(row);
$('#tblData tr:last').after(row);
}
});
});
</script>
</head>
<body>
<br/><input type="button" id="addrow" value="Create Table"/>
<table id="tblData" border="1" width="40%">
<thead>
<tr>
<th>Sr</th>
<th>ID</th>
<th>Name</th>
<th>Delete</th>
</tr>
</thead>
</table>
</body>
</html>
If you're using .NET 4.5.1 or higher checkout Dapper.FluentColumnMapping for mapping the LINQ style. It lets you fully separate the db mapping from your model (no need for annotations)
IMPORTANT:
<button>
should never be a descendent of<a>
.
Try <a href="http://stackoverflow.com"><button>Link Text</button></a>
in any html validator like https://validator.w3.org and you'll get an error. There's really no point in using a button if you're not using the button. Just style the <a>
with css to look like a button. If you're using a framework like Bootstrap, you could apply the button style(s) btn
, btn-primary
etc.
jsfiddle : button styled link
.btnStack {_x000D_
font-family: Oswald;_x000D_
background-color: orange;_x000D_
color: white;_x000D_
text-decoration: none;_x000D_
display: inline-block;_x000D_
padding: 6px 12px;_x000D_
margin-bottom: 0;_x000D_
font-size: 14px;_x000D_
font-weight: normal;_x000D_
line-height: 1.428571429;_x000D_
text-align: center;_x000D_
white-space: nowrap;_x000D_
vertical-align: middle;_x000D_
cursor: pointer;_x000D_
border: 1px solid transparent;_x000D_
border-radius: 4px;_x000D_
-webkit-user-select: none;_x000D_
-moz-user-select: none;_x000D_
-ms-user-select: none;_x000D_
-o-user-select: none;_x000D_
user-select: none;_x000D_
}_x000D_
_x000D_
a.btnStack:hover {_x000D_
background-color: #000;_x000D_
}
_x000D_
<link href='https://fonts.googleapis.com/css?family=Oswald:400' rel='stylesheet' type='text/css'>_x000D_
<a href="http://stackoverflow.com" class="btnStack">stackoverflow.com</a>
_x000D_
You can try this:
<a href="link.html">
<input type="button" value="Visit Page" />
</a>
This will create button inside a link and it works on any browser
Try to run xcrun simctl delete unavailable
in your terminal.
Original answer: Xcode - free to clear devices folder?
This worked for me: Open task manager (of your OS) and kill adb.exe process. Now start adb again, now adb should start normally.
Git keeps all of its files in the .git
directory. Just remove that one and init again.
If you can't find it, it's because it is hidden.
In Windows 7, you need to go to your folder, click on Organize on the top left, then click on Folder and search options, then click on the View tab and click on the Show hidden files, folders and drives radio button.
On a Mac OS:
Open a Terminal (via Spotlight: press CMD + SPACE, type terminal
and press Enter) and run:
defaults write com.apple.finder AppleShowAllFiles 1 && killall Finder
Note: The keyboard shortcut to show hidden files in Finder is CMD + SHIFT + . so it is no longer necessary to modify the finder config this way
You could also type cd
(the space is important), drag and drop your git repo folder from Finder to the terminal window, press return, then type rm -fr .git
, then return again.
On Ubuntu, use shortcut Ctrl + H.
This is handled by adding some padding
to the top of the <body>
.
As per Bootstrap's documentation on .navbar-fixed-top
, try out your own values or use our snippet below. Tip: By default, the navbar
is 50px
high.
body {
padding-top: 70px;
}
Also, take a look at the source for this example and open starter-template.css
.
Yes, but not with that version of the constructor. You can do this:
>>> dict([(1, 2), (3, 4)])
{1: 2, 3: 4}
There are several different ways to make a dict. As documented, "providing keyword arguments [...] only works for keys that are valid Python identifiers."
To put it short 'value' is not an valid attribute of div. So it's absolutely correct to return undefined.
What you could do was something in the line of using one of the HTML5 attributes 'data-*'
<div id="demo" align="center" data-value="1">
And the script would be:
var val = document.getElementById('demo').getAttribute('data-value');
This should work in most modern browsers
Just remember to put your doctype as <!DOCTYPE html>
to get it valid
You can use ES6 arrays instead of classnames. The answer is based on Dr. Axel Rauschmayer article: Conditionally adding entries inside Array and object literals.
<div className={[
"classAlwaysPresent",
...Array.from(condition && ["classIfTrue"])
].join(" ")} />
powershell Set-Date -Da (Get-Date -Y 1980 -Mon 11 -Day 17)
You can use Telerik's numerictextbox for a lot of functionality
<input id="account_rate" data-role="numerictextbox" data-format="#.000" data-min="0.001" data-max="100" data-decimals="3" data-spinners="false" data-bind="value: account_rate_value" onchange="APP.models.rates.buttons_state(true);" />
the core code is free to download
On Windows 7 I solved this by going into my environment settings (try this link for how) and adding user variables http_proxy
and https_proxy
with my proxy details.
If you are using JDK 7 you can use the following code..
import java.nio.file.Files;
import java.io.File;
File fi = new File("myfile.jpg");
byte[] fileContent = Files.readAllBytes(fi.toPath())
Since Multiple SCMs Plugin is deprecated.
With Jenkins Pipeline its possible to checkout multiple git repos and after building it using gradle
node {
def gradleHome
stage('Prepare/Checkout') { // for display purposes
git branch: 'develop', url: 'https://github.com/WtfJoke/Any.git'
dir('a-child-repo') {
git branch: 'develop', url: 'https://github.com/WtfJoke/AnyChild.git'
}
env.JAVA_HOME="${tool 'JDK8'}"
env.PATH="${env.JAVA_HOME}/bin:${env.PATH}" // set java home in jdk environment
gradleHome = tool '3.4.1'
}
stage('Build') {
// Run the gradle build
if (isUnix()) {
sh "'${gradleHome}/bin/gradle' clean build"
} else {
bat(/"${gradleHome}\bin\gradle" clean build/)
}
}
}
You might want to consider using git submodules instead of a custom pipeline like this.
Container(
height: 50,
// margin: EdgeInsets.only(top: 20),
decoration: BoxDecoration(
color: Colors.tealAccent,
borderRadius: BorderRadius.circular(32)),
child: TextFormField(
cursorColor: Colors.black,
// keyboardType: TextInputType.,
decoration: InputDecoration(
hintStyle: TextStyle(fontSize: 17),
hintText: 'Search your trips',
suffixIcon: Icon(Icons.search),
border: InputBorder.none,
contentPadding: EdgeInsets.all(18),
),
),
),
Refer to the "undo" and "redo" part of Vim document.
:red[o] (Redo one change which was undone) and {count} Ctrl+r (Redo {count} changes which were undone) are both ok.
Also, the :earlier {count} (go to older text state {count} times) could always be a substitute for undo and redo.
I wanted to do the same thing from a script using a variable and achieved it by putting quotes around the $variable to separate the variable name from the p:
sed -n "$first","$count"p imagelist.txt >"$imageblock"
I wanted to split a list into separate folders and found the initial question and answer a useful step. (split command not an option on the old os I have to port code to).
In stall PuTTY in our system and set the environment variable PATH Pointing to putty path. open the command prompt and move to putty folder. Using PSCP command
When you use a Range
object, you cannot simply use the following syntax:
Dim myRange as Range
myRange = Range("A1")
You must use the set
keyword to assign Range objects:
Function getData(currentWorksheet As Worksheet, dataStartRow As Integer, dataEndRow As Integer, DataStartCol As Integer, dataEndCol As Integer)
Dim dataTable As Range
Set dataTable = currentWorksheet.Range(currentWorksheet.Cells(dataStartRow, DataStartCol), currentWorksheet.Cells(dataEndRow, dataEndCol))
Set getData = dataTable
End Function
Sub main()
Dim test As Range
Set test = getData(ActiveSheet, 1, 3, 2, 5)
test.select
End Sub
Note that every time a range is declared I use the Set
keyword.
You can also allow your getData
function to return a Range
object instead of a Variant
although this is unrelated to the problem you are having.
Adding more info to the accepted answer, you can refer to my blog to see a running version of the code, using AWS Signature version 4.
Will summarize here:
As soon as the user selects a file to be uploaded, do the followings: 1. Make a call to the web server to initiate a service to generate required params
In this service, make a call to AWS IAM service to get temporary cred
Once you have the cred, create a bucket policy (base 64 encoded string). Then sign the bucket policy with the temporary secret access key to generate final signature
send the necessary parameters back to the UI
Once this is received, create a html form object, set the required params and POST it.
For detailed info, please refer https://wordpress1763.wordpress.com/2016/10/03/browser-based-upload-aws-signature-version-4/
For a general solution that works regardless of how many digits are in data$anim
, use the sprintf
function. It works like this:
sprintf("%04d", 1)
# [1] "0001"
sprintf("%04d", 104)
# [1] "0104"
sprintf("%010d", 104)
# [1] "0000000104"
In your case, you probably want: data$anim <- sprintf("%06d", data$anim)
There are many ways, as listed above, but I find that I just want to import he contents of a file, and don't want to have to write lines and lines and have to import other modules. So, I came up with a way to get the contents of a file, even with the dot syntax (file.property
) as opposed to merging the imported file with yours.
First of all, here is my file which I'll import, data.py
testString= "A string literal to import and test with"
Note: You could use the .txt
extension instead.
In mainfile.py
, start by opening and getting the contents.
#!usr/bin/env python3
Data=open('data.txt','r+').read()
Now you have the contents as a string, but trying to access data.testString
will cause an error, as data
is an instance of the str
class, and even if it does have a property testString
it will not do what you expected.
Next, create a class. For instance (pun intended), ImportedFile
class ImportedFile:
And put this into it (with the appropriate indentation):
exec(data)
And finally, re-assign data
like so:
data=ImportedFile()
And that's it! Just access like you would for any-other module, typing print(data.testString)
will print to the console A string literal to import and test with
.
If, however, you want the equivalent of from mod import *
just drop the class, instance assignment, and de-dent the exec
.
Hope this helps:)
-Benji
To fully overload it you also need to implement the __setitem__
and __delitem__
methods.
edit
I almost forgot... if you want to completely emulate a list, you also need __getslice__, __setslice__ and __delslice__
.
There are all documented in http://docs.python.org/reference/datamodel.html
html { overflow-y: scroll; }
This css
rule causes a vertical scrollbar to always appear.
Source: http://css-tricks.com/snippets/css/force-vertical-scrollbar/
If an axes (generated by code below the code shown in the question) is sharing the range with the first axes, make sure that you set the range after the last plot of that axes.
Your problem is that when you do this:
a = Button(win, text="plant", command=setText("plant"))
it tries to evaluate what to set for the command. So when instantiating the Button
object, it actually calls setText("plant")
. This is wrong, because you don't want to call the setText method yet. Then it takes the return value of this call (which is None
), and sets that to the command of the button. That's why clicking the button does nothing, because there is no command set for it.
If you do as Milan Skála suggested and use a lambda expression instead, then your code will work (assuming you fix the indentation and the parentheses).
Instead of command=setText("plant")
, which actually calls the function, you can set command=lambda:setText("plant")
which specifies something which will call the function later, when you want to call it.
If you don't like lambdas, another (slightly more cumbersome) way would be to define a pair of functions to do what you want:
def set_to_plant():
set_text("plant")
def set_to_animal():
set_text("animal")
and then you can use command=set_to_plant
and command=set_to_animal
- these will evaluate to the corresponding functions, but are definitely not the same as command=set_to_plant()
which would of course evaluate to None
again.
Mark Longair’s answer is excellent, but I have found this simpler version to work for me.
git log -S whatever
What is blob url? Why it is used?
BLOB is just byte sequence. Browser recognize it as byte stream. It is used to get byte stream from source.
A Blob object represents a file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.
Can i make my own blob url on a server?
Yes you can there are serveral ways to do so for example try http://php.net/manual/en/function.ibase-blob-echo.php
Read more on
If you have access to netstat
, that can do precisely that.
import itertools
A = list(zip([1,3,5,7,9],[2,4,6,8,10]))
B = [1,3,5,7,9]+[2,4,6,8,10]
C = list(set([1,3,5,7,9] + [2,4,6,8,10]))
D = [1,3,5,7,9]
D.append([2,4,6,8,10])
E = [1,3,5,7,9]
E.extend([2,4,6,8,10])
F = []
for a in itertools.chain([1,3,5,7,9], [2,4,6,8,10]):
F.append(a)
print ("A: " + str(A))
print ("B: " + str(B))
print ("C: " + str(C))
print ("D: " + str(D))
print ("E: " + str(E))
print ("F: " + str(F))
Output:
A: [(1, 2), (3, 4), (5, 6), (7, 8), (9, 10)]
B: [1, 3, 5, 7, 9, 2, 4, 6, 8, 10]
C: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
D: [1, 3, 5, 7, 9, [2, 4, 6, 8, 10]]
E: [1, 3, 5, 7, 9, 2, 4, 6, 8, 10]
F: [1, 3, 5, 7, 9, 2, 4, 6, 8, 10]
array hash_algos(void)
echo hash('sha384', 'Message to be hashed'.'salt');
Here is a link to reference http://php.net/manual/en/function.hash.php
We'll never convince people to leave IE6 if we keep striving to deliver quality websites to those users.
Only IE7+ understood "position: fixed".
https://developer.mozilla.org/en-US/docs/Web/CSS/position
So you're out of luck for IE6. To get the footer semi-sticky try this:
.main {
min-height: 100%;
margin-bottom: -60px;
}
.footer {
height: 60px;
}
You could also use an iFrame maybe.
This will keep the footer from 'lifting off' from the bottom of the page. If you have more than one page of content then it will push down out of site.
On a philosophical note, I'd rather point IE6 users to http://browsehappy.com/ and spend the time I save hacking for IE6 on something else.
Generate a number in the range from 100000
to 999999
.
// pseudo code
int n = 100000 + random_float() * 900000;
For more details see the documentation for Random
I have updated the build.gradle(Module: app): Old Code:
compile 'com.android.support:appcompat-v7:23.0.1'
New Code:
compile 'com.android.support:appcompat-v7:22.2.0'
Works for me in android studio.
func callForMenuView() {
if(!isOpen)
{
isOpen = true
let menuVC : MenuViewController = self.storyboard!.instantiateViewController(withIdentifier: "menu") as! MenuViewController
self.view.addSubview(menuVC.view)
self.addChildViewController(menuVC)
menuVC.view.layoutIfNeeded()
menuVC.view.frame=CGRect(x: 0 - UIScreen.main.bounds.size.width, y: 0, width: UIScreen.main.bounds.size.width-90, height: UIScreen.main.bounds.size.height);
UIView.animate(withDuration: 0.3, animations: { () -> Void in
menuVC.view.frame=CGRect(x: 0, y: 0, width: UIScreen.main.bounds.size.width-90, height: UIScreen.main.bounds.size.height);
}, completion:nil)
}else if(isOpen)
{
isOpen = false
let viewMenuBack : UIView = view.subviews.last!
UIView.animate(withDuration: 0.3, animations: { () -> Void in
var frameMenu : CGRect = viewMenuBack.frame
frameMenu.origin.x = -1 * UIScreen.main.bounds.size.width
viewMenuBack.frame = frameMenu
viewMenuBack.layoutIfNeeded()
viewMenuBack.backgroundColor = UIColor.clear
}, completion: { (finished) -> Void in
viewMenuBack.removeFromSuperview()
})
}
Try to do an UPDATE. If it doesn't modify any row that means it didn't exist, so do an insert. Obviously, you do this inside a transaction.
You can of course wrap this in a function if you don't want to put the extra code on the client side. You also need a loop for the very rare race condition in that thinking.
There's an example of this in the documentation: http://www.postgresql.org/docs/9.3/static/plpgsql-control-structures.html, example 40-2 right at the bottom.
That's usually the easiest way. You can do some magic with rules, but it's likely going to be a lot messier. I'd recommend the wrap-in-function approach over that any day.
This works for single row, or few row, values. If you're dealing with large amounts of rows for example from a subquery, you're best of splitting it into two queries, one for INSERT and one for UPDATE (as an appropriate join/subselect of course - no need to write your main filter twice)
There is a class in iOS 4 which supports sending messages with body and recipents from your application. It works the same as sending mail. You can find the documentation here: link text
You can use code like:
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<script>window.jQuery || document.write('<script type="text/javascript" src="./scripts/jquery.min.js">\x3C/script>')</script>
But also there are libraries you can use to setup several possible fallbacks for your scripts and optimize the loading process:
Examples:
basket.js I think the best variant for now. Will cach your script in the localStorage, that will speed up next loadings. The simplest call:
basket.require({ url: '/path/to/jquery.js' });
This will return a promise and you can do next call on error, or load dependencies on success:
basket
.require({ url: '/path/to/jquery.js' })
.then(function () {
// Success
}, function (error) {
// There was an error fetching the script
// Try to load jquery from the next cdn
});
RequireJS
requirejs.config({
enforceDefine: true,
paths: {
jquery: [
'//ajax.aspnetcdn.com/ajax/jquery/jquery-2.0.0.min',
//If the CDN location fails, load from this location
'js/jquery-2.0.0.min'
]
}
});
//Later
require(['jquery'], function ($) {
});
yepnope
yepnope([{
load: 'http://ajax.aspnetcdn.com/ajax/jquery/jquery-2.0.0.min.js',
complete: function () {
if (!window.jQuery) {
yepnope('js/jquery-2.0.0.min.js');
}
}
}]);
First a disclaimer beforehand: the posted code snippets are all basic examples. You'll need to handle trivial IOException
s and RuntimeException
s like NullPointerException
, ArrayIndexOutOfBoundsException
and consorts yourself.
We first need to know at least the URL and the charset. The parameters are optional and depend on the functional requirements.
String url = "http://example.com";
String charset = "UTF-8"; // Or in Java 7 and later, use the constant: java.nio.charset.StandardCharsets.UTF_8.name()
String param1 = "value1";
String param2 = "value2";
// ...
String query = String.format("param1=%s¶m2=%s",
URLEncoder.encode(param1, charset),
URLEncoder.encode(param2, charset));
The query parameters must be in name=value
format and be concatenated by &
. You would normally also URL-encode the query parameters with the specified charset using URLEncoder#encode()
.
The String#format()
is just for convenience. I prefer it when I would need the String concatenation operator +
more than twice.
It's a trivial task. It's the default request method.
URLConnection connection = new URL(url + "?" + query).openConnection();
connection.setRequestProperty("Accept-Charset", charset);
InputStream response = connection.getInputStream();
// ...
Any query string should be concatenated to the URL using ?
. The Accept-Charset
header may hint the server what encoding the parameters are in. If you don't send any query string, then you can leave the Accept-Charset
header away. If you don't need to set any headers, then you can even use the URL#openStream()
shortcut method.
InputStream response = new URL(url).openStream();
// ...
Either way, if the other side is an HttpServlet
, then its doGet()
method will be called and the parameters will be available by HttpServletRequest#getParameter()
.
For testing purposes, you can print the response body to stdout as below:
try (Scanner scanner = new Scanner(response)) {
String responseBody = scanner.useDelimiter("\\A").next();
System.out.println(responseBody);
}
Setting the URLConnection#setDoOutput()
to true
implicitly sets the request method to POST. The standard HTTP POST as web forms do is of type application/x-www-form-urlencoded
wherein the query string is written to the request body.
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true); // Triggers POST.
connection.setRequestProperty("Accept-Charset", charset);
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
try (OutputStream output = connection.getOutputStream()) {
output.write(query.getBytes(charset));
}
InputStream response = connection.getInputStream();
// ...
Note: whenever you'd like to submit a HTML form programmatically, don't forget to take the name=value
pairs of any <input type="hidden">
elements into the query string and of course also the name=value
pair of the <input type="submit">
element which you'd like to "press" programmatically (because that's usually been used in the server side to distinguish if a button was pressed and if so, which one).
You can also cast the obtained URLConnection
to HttpURLConnection
and use its HttpURLConnection#setRequestMethod()
instead. But if you're trying to use the connection for output you still need to set URLConnection#setDoOutput()
to true
.
HttpURLConnection httpConnection = (HttpURLConnection) new URL(url).openConnection();
httpConnection.setRequestMethod("POST");
// ...
Either way, if the other side is an HttpServlet
, then its doPost()
method will be called and the parameters will be available by HttpServletRequest#getParameter()
.
You can fire the HTTP request explicitly with URLConnection#connect()
, but the request will automatically be fired on demand when you want to get any information about the HTTP response, such as the response body using URLConnection#getInputStream()
and so on. The above examples does exactly that, so the connect()
call is in fact superfluous.
You need an HttpURLConnection
here. Cast it first if necessary.
int status = httpConnection.getResponseCode();
for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
System.out.println(header.getKey() + "=" + header.getValue());
}
When the Content-Type
contains a charset
parameter, then the response body is likely text based and we'd like to process the response body with the server-side specified character encoding then.
String contentType = connection.getHeaderField("Content-Type");
String charset = null;
for (String param : contentType.replace(" ", "").split(";")) {
if (param.startsWith("charset=")) {
charset = param.split("=", 2)[1];
break;
}
}
if (charset != null) {
try (BufferedReader reader = new BufferedReader(new InputStreamReader(response, charset))) {
for (String line; (line = reader.readLine()) != null;) {
// ... System.out.println(line) ?
}
}
} else {
// It's likely binary content, use InputStream/OutputStream.
}
The server side session is usually backed by a cookie. Some web forms require that you're logged in and/or are tracked by a session. You can use the CookieHandler
API to maintain cookies. You need to prepare a CookieManager
with a CookiePolicy
of ACCEPT_ALL
before sending all HTTP requests.
// First set the default cookie manager.
CookieHandler.setDefault(new CookieManager(null, CookiePolicy.ACCEPT_ALL));
// All the following subsequent URLConnections will use the same cookie manager.
URLConnection connection = new URL(url).openConnection();
// ...
connection = new URL(url).openConnection();
// ...
connection = new URL(url).openConnection();
// ...
Note that this is known to not always work properly in all circumstances. If it fails for you, then best is to manually gather and set the cookie headers. You basically need to grab all Set-Cookie
headers from the response of the login or the first GET
request and then pass this through the subsequent requests.
// Gather all cookies on the first request.
URLConnection connection = new URL(url).openConnection();
List<String> cookies = connection.getHeaderFields().get("Set-Cookie");
// ...
// Then use the same cookies on all subsequent requests.
connection = new URL(url).openConnection();
for (String cookie : cookies) {
connection.addRequestProperty("Cookie", cookie.split(";", 2)[0]);
}
// ...
The split(";", 2)[0]
is there to get rid of cookie attributes which are irrelevant for the server side like expires
, path
, etc. Alternatively, you could also use cookie.substring(0, cookie.indexOf(';'))
instead of split()
.
The HttpURLConnection
will by default buffer the entire request body before actually sending it, regardless of whether you've set a fixed content length yourself using connection.setRequestProperty("Content-Length", contentLength);
. This may cause OutOfMemoryException
s whenever you concurrently send large POST requests (e.g. uploading files). To avoid this, you would like to set the HttpURLConnection#setFixedLengthStreamingMode()
.
httpConnection.setFixedLengthStreamingMode(contentLength);
But if the content length is really not known beforehand, then you can make use of chunked streaming mode by setting the HttpURLConnection#setChunkedStreamingMode()
accordingly. This will set the HTTP Transfer-Encoding
header to chunked
which will force the request body being sent in chunks. The below example will send the body in chunks of 1KB.
httpConnection.setChunkedStreamingMode(1024);
It can happen that a request returns an unexpected response, while it works fine with a real web browser. The server side is probably blocking requests based on the User-Agent
request header. The URLConnection
will by default set it to Java/1.6.0_19
where the last part is obviously the JRE version. You can override this as follows:
connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"); // Do as if you're using Chrome 41 on Windows 7.
Use the User-Agent string from a recent browser.
If the HTTP response code is 4nn
(Client Error) or 5nn
(Server Error), then you may want to read the HttpURLConnection#getErrorStream()
to see if the server has sent any useful error information.
InputStream error = ((HttpURLConnection) connection).getErrorStream();
If the HTTP response code is -1, then something went wrong with connection and response handling. The HttpURLConnection
implementation is in older JREs somewhat buggy with keeping connections alive. You may want to turn it off by setting the http.keepAlive
system property to false
. You can do this programmatically in the beginning of your application by:
System.setProperty("http.keepAlive", "false");
You'd normally use multipart/form-data
encoding for mixed POST content (binary and character data). The encoding is in more detail described in RFC2388.
String param = "value";
File textFile = new File("/path/to/file.txt");
File binaryFile = new File("/path/to/file.bin");
String boundary = Long.toHexString(System.currentTimeMillis()); // Just generate some unique random value.
String CRLF = "\r\n"; // Line separator required by multipart/form-data.
URLConnection connection = new URL(url).openConnection();
connection.setDoOutput(true);
connection.setRequestProperty("Content-Type", "multipart/form-data; boundary=" + boundary);
try (
OutputStream output = connection.getOutputStream();
PrintWriter writer = new PrintWriter(new OutputStreamWriter(output, charset), true);
) {
// Send normal param.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"param\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=" + charset).append(CRLF);
writer.append(CRLF).append(param).append(CRLF).flush();
// Send text file.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"textFile\"; filename=\"" + textFile.getName() + "\"").append(CRLF);
writer.append("Content-Type: text/plain; charset=" + charset).append(CRLF); // Text file itself must be saved in this charset!
writer.append(CRLF).flush();
Files.copy(textFile.toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
// Send binary file.
writer.append("--" + boundary).append(CRLF);
writer.append("Content-Disposition: form-data; name=\"binaryFile\"; filename=\"" + binaryFile.getName() + "\"").append(CRLF);
writer.append("Content-Type: " + URLConnection.guessContentTypeFromName(binaryFile.getName())).append(CRLF);
writer.append("Content-Transfer-Encoding: binary").append(CRLF);
writer.append(CRLF).flush();
Files.copy(binaryFile.toPath(), output);
output.flush(); // Important before continuing with writer!
writer.append(CRLF).flush(); // CRLF is important! It indicates end of boundary.
// End of multipart/form-data.
writer.append("--" + boundary + "--").append(CRLF).flush();
}
If the other side is an HttpServlet
, then its doPost()
method will be called and the parts will be available by HttpServletRequest#getPart()
(note, thus not getParameter()
and so on!). The getPart()
method is however relatively new, it's introduced in Servlet 3.0 (Glassfish 3, Tomcat 7, etc). Prior to Servlet 3.0, your best choice is using Apache Commons FileUpload to parse a multipart/form-data
request. Also see this answer for examples of both the FileUpload and the Servelt 3.0 approaches.
Sometimes you need to connect an HTTPS URL, perhaps because you're writing a web scraper. In that case, you may likely face a javax.net.ssl.SSLException: Not trusted server certificate
on some HTTPS sites who doesn't keep their SSL certificates up to date, or a java.security.cert.CertificateException: No subject alternative DNS name matching [hostname] found
or javax.net.ssl.SSLProtocolException: handshake alert: unrecognized_name
on some misconfigured HTTPS sites.
The following one-time-run static
initializer in your web scraper class should make HttpsURLConnection
more lenient as to those HTTPS sites and thus not throw those exceptions anymore.
static {
TrustManager[] trustAllCertificates = new TrustManager[] {
new X509TrustManager() {
@Override
public X509Certificate[] getAcceptedIssuers() {
return null; // Not relevant.
}
@Override
public void checkClientTrusted(X509Certificate[] certs, String authType) {
// Do nothing. Just allow them all.
}
@Override
public void checkServerTrusted(X509Certificate[] certs, String authType) {
// Do nothing. Just allow them all.
}
}
};
HostnameVerifier trustAllHostnames = new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true; // Just allow them all.
}
};
try {
System.setProperty("jsse.enableSNIExtension", "false");
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, trustAllCertificates, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
HttpsURLConnection.setDefaultHostnameVerifier(trustAllHostnames);
}
catch (GeneralSecurityException e) {
throw new ExceptionInInitializerError(e);
}
}
The Apache HttpComponents HttpClient is much more convenient in this all :)
If all you want is parsing and extracting data from HTML, then better use a HTML parser like Jsoup
I have another solution for your question .
In the first when use date
the output is like this :
Thu 28 Jan 2021 22:29:40 IST
Then if you want only to show current time in hours and minutes you can use this command :
date | cut -d " " -f5 | cut -d ":" -f1-2
Then the output :
22:29
I like Consolas
a lot. This top-10 list is a good resource for others. It includes examples and descriptions.
OSError: [Errno 8] Exec format error
can happen if there is no shebang line at the top of the shell script and you are trying to execute the script directly. Here's an example that reproduces the issue:
>>> with open('a','w') as f: f.write('exit 0') # create the script
...
>>> import os
>>> os.chmod('a', 0b111101101) # rwxr-xr-x make it executable
>>> os.execl('./a', './a') # execute it
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python2.7/os.py", line 312, in execl
execv(file, args)
OSError: [Errno 8] Exec format error
To fix it, just add the shebang e.g., if it is a shell script; prepend #!/bin/sh
at the top of your script:
>>> with open('a','w') as f: f.write('#!/bin/sh\nexit 0')
...
>>> os.execl('./a', './a')
It executes exit 0
without any errors.
On POSIX systems, shell parses the command line i.e., your script won't see spaces around =
e.g., if script
is:
#!/usr/bin/env python
import sys
print(sys.argv)
then running it in the shell:
$ /usr/local/bin/script hostname = '<hostname>' -p LONGLIST
produces:
['/usr/local/bin/script', 'hostname', '=', '<hostname>', '-p', 'LONGLIST']
Note: no spaces around '='
. I've added quotes around <hostname>
to escape the redirection metacharacters <>
.
To emulate the shell command in Python, run:
from subprocess import check_call
cmd = ['/usr/local/bin/script', 'hostname', '=', '<hostname>', '-p', 'LONGLIST']
check_call(cmd)
Note: no shell=True
. And you don't need to escape <>
because no shell is run.
"Exec format error"
might indicate that your script
has invalid format, run:
$ file /usr/local/bin/script
to find out what it is. Compare the architecture with the output of:
$ uname -m
string myText =
@"<div class=""firstLine""></div>
<div class=""secondLine""></div>
<div class=""thirdLine""></div>";
that's not it:
string myText =
@"<div class=\"firstLine\"></div>
<div class=\"secondLine\"></div>
<div class=\"thirdLine\"></div>";
This function (ManagementQuery
) works on Windows XP and later:
private static string ManagementQuery(string query, string parameter, string scope = null) {
string result = string.Empty;
var searcher = string.IsNullOrEmpty(scope) ? new ManagementObjectSearcher(query) : new ManagementObjectSearcher(scope, query);
foreach (var os in searcher.Get()) {
try {
result = os[parameter].ToString();
}
catch {
//ignore
}
if (!string.IsNullOrEmpty(result)) {
break;
}
}
return result;
}
Usage:
Console.WriteLine(BytesToMb(Convert.ToInt64(ManagementQuery("SELECT TotalPhysicalMemory FROM Win32_ComputerSystem", "TotalPhysicalMemory", "root\\CIMV2"))));
If you are using version 0.14.0 or higher of the gradle plugin, you should replace "runProguard" with "minifyEnabled" in your build.gradle files.
runProguard was renamed to minifyEnabled in version 0.14.0. For more info, See Android Build System
In my opinion the main form should be responsible for opening both child form. Here is some pseudo that explains what I would do:
// MainForm
private ChildForm childForm;
private MoreForm moreForm;
ButtonThatOpenTheFirstChildForm_Click()
{
childForm = CreateTheChildForm();
childForm.MoreClick += More_Click;
childForm.Show();
}
More_Click()
{
childForm.Close();
moreForm = new MoreForm();
moreForm.Show();
}
You will just need to create a simple event MoreClick in the first child. The main benefit of this approach is that you can replicate it as needed and you can very easily model some sort of basic workflow.
For those who want to know the changes just made in an after_save
callback:
model.saved_changes
model.previous_changes
Also see: http://api.rubyonrails.org/classes/ActiveModel/Dirty.html#method-i-previous_changes
Works on Windows
open command prompt (press Windows Key + R then type "cmd" without quotations in the appearing dialogue box and then press Enter Key).
then type the code sniff below :
then type following command
Then it will ask for Keystore password now. The default password is "android" type and enter or just hit enter "DONT TYPE ANY PASSWORD".
hbn's answer won't work out of the box if the file to load is in a subdirectory or is named with dashes.
In such a case you may consider this alternative :
exec open(myconfig.py).read()
Or the simpler but deprecated in python3 :
execfile(myconfig.py)
I guess Stephan202's warning applies to both options, though, and maybe the loop on lines is safer.
You can use white-space:pre-wrap
on the tooltip. This will make the tooltip respect new lines. Lines will still wrap if they are longer than the default max-width of the container.
.tooltip-inner {
white-space:pre-wrap;
}
http://jsfiddle.net/chad/TSZSL/52/
If you want to prevent text from wrapping, do the following instead.
.tooltip-inner {
white-space:pre;
max-width:none;
}
http://jsfiddle.net/chad/TSZSL/53/
Neither of these will work with a \n
in the html, they must actually be actual newlines. Alternatively, you can use encoded newlines 
, but that's probably even less desirable than using <br>
's.
This would work for inserting any character any particular position in your String.
public static String insertCharacterForEveryNDistance(int distance, String original, char c){
StringBuilder sb = new StringBuilder();
char[] charArrayOfOriginal = original.toCharArray();
for(int ch = 0 ; ch < charArrayOfOriginal.length ; ch++){
if(ch % distance == 0)
sb.append(c).append(charArrayOfOriginal[ch]);
else
sb.append(charArrayOfOriginal[ch]);
}
return sb.toString();
}
Then call it like this
String result = InsertSpaces.insertCharacterForEveryNDistance(1, "5434567845678965", ' ');
System.out.println(result);
Postgres Enterprise Manager from EnterpriseDB is probably the most advanced you'll find. It includes all the features of pgAdmin, plus monitoring of your hosts and database servers, predictive reporting, alerting and a SQL Profiler.
http://www.enterprisedb.com/products-services-training/products/postgres-enterprise-manager
Ninja edit disclaimer/notice: it seems that this user is affiliated with EnterpriseDB, as the linked Postgres Enterprise Manager website contains a video of one Dave Page.
The easiest thing I can think of is to grab the fingerprint from the debug.keystore (paths are mentioned in other answers) and add that to your project. No need to copy keystores or add new apps. Just append to the list of fingerprints for each machine you develop on.
FWIW, I ran into this when I switched from one laptop to another. I bounce around a lot.
https://support.google.com/firebase/answer/7000104?hl=en#sha1
Hope that helps some folks out! :)
Set the loop iterations to 10,000.
Find the time in milliseconds>Run Loop>find time in milliseconds and subtract the first timer.
Do it for both codes, what ever one has the lowest milliseconds it runs faster. You might want to run the test multiple times and average them out to reduce the likelihood of background processes influencing the test.
You are likely to get really similar times on both of them, but I am interested to see if one is always just slightly faster.
Brace expansion doesn't work, but *
, ?
and []
do. If you set shopt -s extglob
then you can also use extended pattern matching:
?()
- zero or one occurrences of pattern*()
- zero or more occurrences of pattern+()
- one or more occurrences of pattern@()
- one occurrence of pattern!()
- anything except the patternHere's an example:
shopt -s extglob
for arg in apple be cd meet o mississippi
do
# call functions based on arguments
case "$arg" in
a* ) foo;; # matches anything starting with "a"
b? ) bar;; # matches any two-character string starting with "b"
c[de] ) baz;; # matches "cd" or "ce"
me?(e)t ) qux;; # matches "met" or "meet"
@(a|e|i|o|u) ) fuzz;; # matches one vowel
m+(iss)?(ippi) ) fizz;; # matches "miss" or "mississippi" or others
* ) bazinga;; # catchall, matches anything not matched above
esac
done
I'd solve it with a javascript solution (jQUery) if the sizes can vary.
window.setTimeout(function () {
$(document).ready(function () {
var ResizeTarget = $('#B');
ResizeTarget.resize(function () {
var target = $('#B2');
target.css('height', ResizeTarget.height());
}).trigger('resize');
});
}, 500);
purls $.params()
used without a parameter will give you a key-value object of the parameters.
jQuerys $.param()
will build a querystring from the supplied object/array.
var params = parsedUrl.param();
delete params["page"];
var newUrl = "?page=" + $(this).val() + "&" + $.param(params);
Update
I've no idea why I used delete
here...
var params = parsedUrl.param();
params["page"] = $(this).val();
var newUrl = "?" + $.param(params);
I'm trying to send a request to URL_server with request module in python 3. This works for me:
# -*- coding: utf-8 *-*
import json, requests
URL_SERVER_TO_POST_DATA = "URL_to_send_POST_request"
HEADERS = {"Content-Type" : "multipart/form-data;"}
def getPointsCC_Function():
file_data = {
'var1': (None, "valueOfYourVariable_1"),
'var2': (None, "valueOfYourVariable_2")
}
try:
resElastic = requests.post(URL_GET_BALANCE, files=file_data)
res = resElastic.json()
except Exception as e:
print(e)
print (json.dumps(res, indent=4, sort_keys=True))
getPointsCC_Function()
Where:
You can use the RTrim function to trim all whitespace from the right. Use LTrim to trim all whitespace from the left. For example
UPDATE Table SET Name = RTrim(Name)
Or for both left and right trim
UPDATE Table SET Name = LTrim(RTrim(Name))
This will allow you to see the whole response not just the "responseText" value
error: function(xhr, status, error) {
var acc = []
$.each(xhr, function(index, value) {
acc.push(index + ': ' + value);
});
alert(JSON.stringify(acc));
}
I have a function which returns a CLOB and I was seeing the above error when I'd forgotten to declare the return value as an output parameter. Initially I had:
protected SimpleJdbcCall buildJdbcCall(JdbcTemplate jdbcTemplate)
{
SimpleJdbcCall call = new SimpleJdbcCall(jdbcTemplate)
.withSchemaName(schema)
.withCatalogName(catalog)
.withFunctionName(functionName)
.withReturnValue()
.declareParameters(buildSqlParameters());
return call;
}
public SqlParameter[] buildSqlParameters() {
return new SqlParameter[]{
new SqlParameter("p_names", Types.VARCHAR),
new SqlParameter("p_format", Types.VARCHAR),
new SqlParameter("p_units", Types.VARCHAR),
new SqlParameter("p_datums", Types.VARCHAR),
new SqlParameter("p_start", Types.VARCHAR),
new SqlParameter("p_end", Types.VARCHAR),
new SqlParameter("p_timezone", Types.VARCHAR),
new SqlParameter("p_office_id", Types.VARCHAR),
};
}
The buildSqlParameters method should have included the SqlOutParameter:
public SqlParameter[] buildSqlParameters() {
return new SqlParameter[]{
new SqlParameter("p_names", Types.VARCHAR),
new SqlParameter("p_format", Types.VARCHAR),
new SqlParameter("p_units", Types.VARCHAR),
new SqlParameter("p_datums", Types.VARCHAR),
new SqlParameter("p_start", Types.VARCHAR),
new SqlParameter("p_end", Types.VARCHAR),
new SqlParameter("p_timezone", Types.VARCHAR),
new SqlParameter("p_office_id", Types.VARCHAR),
new SqlOutParameter("l_clob", Types.CLOB) // <-- This was missing!
};
}
If u need to connect your application to a server you can do it through PHP/MySQL and JSON http://www.androidhive.info/2012/05/how-to-connect-android-with-php-mysql/ .Mysql Connection code should be in AsynTask class. Dont run it in Main Thread.
User Pumbaa80's answer is great if you have an object you want pretty printed. If you're starting from a valid JSON string that you want to pretty printed, you need to convert it to an object first:
var jsonString = '{"some":"json"}';
var jsonPretty = JSON.stringify(JSON.parse(jsonString),null,2);
This builds a JSON object from the string, and then converts it back to a string using JSON stringify's pretty print.
This is a nice way of sorting a table:
$(document).ready(function () {_x000D_
$('th').each(function (col) {_x000D_
$(this).hover(_x000D_
function () {_x000D_
$(this).addClass('focus');_x000D_
},_x000D_
function () {_x000D_
$(this).removeClass('focus');_x000D_
}_x000D_
);_x000D_
$(this).click(function () {_x000D_
if ($(this).is('.asc')) {_x000D_
$(this).removeClass('asc');_x000D_
$(this).addClass('desc selected');_x000D_
sortOrder = -1;_x000D_
} else {_x000D_
$(this).addClass('asc selected');_x000D_
$(this).removeClass('desc');_x000D_
sortOrder = 1;_x000D_
}_x000D_
$(this).siblings().removeClass('asc selected');_x000D_
$(this).siblings().removeClass('desc selected');_x000D_
var arrData = $('table').find('tbody >tr:has(td)').get();_x000D_
arrData.sort(function (a, b) {_x000D_
var val1 = $(a).children('td').eq(col).text().toUpperCase();_x000D_
var val2 = $(b).children('td').eq(col).text().toUpperCase();_x000D_
if ($.isNumeric(val1) && $.isNumeric(val2))_x000D_
return sortOrder == 1 ? val1 - val2 : val2 - val1;_x000D_
else_x000D_
return (val1 < val2) ? -sortOrder : (val1 > val2) ? sortOrder : 0;_x000D_
});_x000D_
$.each(arrData, function (index, row) {_x000D_
$('tbody').append(row);_x000D_
});_x000D_
});_x000D_
});_x000D_
});
_x000D_
table, th, td {_x000D_
border: 1px solid black;_x000D_
}_x000D_
th {_x000D_
cursor: pointer;_x000D_
}
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<table>_x000D_
<tr><th>id</th><th>name</th><th>age</th></tr>_x000D_
<tr><td>1</td><td>Julian</td><td>31</td></tr>_x000D_
<tr><td>2</td><td>Bert</td><td>12</td></tr>_x000D_
<tr><td>3</td><td>Xavier</td><td>25</td></tr>_x000D_
<tr><td>4</td><td>Mindy</td><td>32</td></tr>_x000D_
<tr><td>5</td><td>David</td><td>40</td></tr>_x000D_
</table>
_x000D_
The fiddle can be found here:
https://jsfiddle.net/e3s84Luw/
The explanation can be found here: https://www.learningjquery.com/2017/03/how-to-sort-html-table-using-jquery-code
Using an example data.frame and example function (just +1 to all values)
A <- function(x) x + 1
wifi <- data.frame(replicate(9,1:4))
wifi
# X1 X2 X3 X4 X5 X6 X7 X8 X9
#1 1 1 1 1 1 1 1 1 1
#2 2 2 2 2 2 2 2 2 2
#3 3 3 3 3 3 3 3 3 3
#4 4 4 4 4 4 4 4 4 4
data.frame(wifi[1:3], apply(wifi[4:9],2, A) )
#or
cbind(wifi[1:3], apply(wifi[4:9],2, A) )
# X1 X2 X3 X4 X5 X6 X7 X8 X9
#1 1 1 1 2 2 2 2 2 2
#2 2 2 2 3 3 3 3 3 3
#3 3 3 3 4 4 4 4 4 4
#4 4 4 4 5 5 5 5 5 5
Or even:
data.frame(wifi[1:3], lapply(wifi[4:9], A) )
#or
cbind(wifi[1:3], lapply(wifi[4:9], A) )
# X1 X2 X3 X4 X5 X6 X7 X8 X9
#1 1 1 1 2 2 2 2 2 2
#2 2 2 2 3 3 3 3 3 3
#3 3 3 3 4 4 4 4 4 4
#4 4 4 4 5 5 5 5 5 5
According to the Angular team and this Github issue:
we now have $viewContentLoaded and $includeContentLoaded events that are emitted in ng-view and ng-include respectively. I think this is as close as one can get to knowing when we are done with the compilation.
Based on this, it seems this is currently not possible to do in a reliable way, otherwise Angular would have provided the event out of the box.
Bootstrapping the app implies running the digest cycle on the root scope, and there is also not a digest cycle finished event.
According to the Angular 2 design docs:
Because of multiple digests, it is impossible to determine and notify the component that the model is stable. This is because notification can further change data, which can restart the binding process.
According to this, the fact that this is not possible is one the reasons why the decision was taken to go for a rewrite in Angular 2.
other option In Load Url in Same Application using Webview
webView = (WebView) findViewById(R.id.webView1);
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl("http://www.google.com");
For Windows/WSL/Cygwin etc users:
Make sure that your line endings are standard Unix line feeds, i.e. \n
(LF) only.
Using Windows line endings \r\n
(CRLF) line endings will break the command line break.
This is because having \
at the end of a line with Windows line ending translates to
\
\r
\n
.
As Mark correctly explains above:
The line-continuation will fail if you have whitespace after the backslash and before the newline.
This includes not just space () or tabs (
\t
) but also the carriage return (\r
).
http://en.wikipedia.org/wiki/Hexspeak
http://www.urbandictionary.com/define.php?term=dead%3Abeef
"Dead beef" is a very popular sentence in programming, because it is built only from letters a-f, which are used in hexadecimal notation. Colons in the beginning and in the middle of the sentence make this sentence a (theoretically) valid IPv6 address.
The top answers here correctly speak to the difference in Kotlin between read-only List
(NOTE: it's read-only, not "immutable"), and MutableList
.
In general, one should strive to use read-only lists, however, mutability is still often useful at construction time, especially when dealing with third-party libraries with non-functional interfaces. For cases in which alternate construction techniques are not available, such as using listOf
directly, or applying a functional construct like fold
or reduce
, a simple "builder function" construct like the following nicely produces a read-only list from a temporary mutable one:
val readonlyList = mutableListOf<...>().apply {
// manipulate your list here using whatever logic you need
// the `apply` function sets `this` to the `MutableList`
add(foo1)
addAll(foos)
// etc.
}.toList()
and this can be nicely encapsulated into a re-usable inline utility function:
inline fun <T> buildList(block: MutableList<T>.() -> Unit) =
mutableListOf<T>().apply(block).toList()
which can be called like this:
val readonlyList = buildList<String> {
add("foo")
add("bar")
}
Now, all of the mutability is isolated to one block scope used for construction of the read-only list, and the rest of your code uses the read-only list that is output from the builder.
UPDATE: As of Kotlin 1.3.70, the exact buildList
function above is available in the standard library as an experimental function, along with its analogues buildSet
and buildMap
. See https://blog.jetbrains.com/kotlin/2020/03/kotlin-1-3-70-released/.
Both of these operations restore a set of files to a previous state and are essentially faster, safer ways of undoing mistakes than using the p4 obliterate
command (and you don't need admin access to use them).
In the case of "Rollback...", this could be any number of files, even an entire depot. You can tell it to rollback to a specific revision, changelist, or label. The files are restored to the state they were in at the time of creation of that revision, changelist, or label.
In the case of "Back Out Submitted Changelist #####", the restore operation is restricted to the files that were submitted in changelist #####. Those files are restored to the state they were in before you submitted that changelist, provided no changes have been made to those files since. If subsequent changes have been made to any of those files, Perforce will tell you that those files are now out of date. You will have to sync to the head revision and then resolve the differences. This way you don't inadvertently clobber any changes that you actually want to keep.
Both operations work by essentially submitting old revisions as new revisions. When you perform a "Rollback...", you are restoring the files to the state they were in at a specific point in time, regardless of what has happened to them since. When you perform a "Back out...", you are attempting to undo the changes you made at a specific point in time, while maintaining the changes that have occurred since.
Reuses cells while scrolling up/down - this is possible with implementing View Holder in the listView adapter, but it was an optional thing, while in the RecycleView it's the default way of writing adapter.
Decouples list from its container - so you can put list items easily at run time in the different containers (linearLayout, gridLayout) with setting LayoutManager.
Example:
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
//or
mRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));
mRecyclerView.setLayoutManager(new GridLayoutManager(this, 3));
Animates common list actions.
Animations are decoupled and delegated to ItemAnimator
.
There is more about RecyclerView, but I think these points are the main ones.
LayoutManager
i) LinearLayoutManager - which supports both vertical and horizontal lists,
ii) StaggeredLayoutManager - which supports Pinterest like staggered lists,
iii) GridLayoutManager - which supports displaying grids as seen in Gallery apps.
And the best thing is that we can do all these dynamically as we want.
The following works fine:
backgroundColor: 'rgba(52, 52, 52, alpha)'
You could also try:
backgroundColor: 'transparent'
You can use &
in place of &
A similar question was asked on the Spring forums, where it was pointed out that to apply pagination, a second subquery must be derived. Because the subquery is referring to the same fields, you need to ensure that your query uses aliases for the entities/tables it refers to. This means that where you wrote:
select * from internal_uddi where urn like
You should instead have:
select * from internal_uddi iu where iu.urn like ...
when a derived class object is assigned to a base class object, additional attributes of a derived class object are sliced off (discard) form the base class object.
class Base {
int x;
};
class Derived : public Base {
int z;
};
int main()
{
Derived d;
Base b = d; // Object Slicing, z of d is sliced off
}
Apparently \r
is the key!
$ sed 's/, /\r/g' file3.txt > file4.txt
Transformed this:
ABFS, AIRM, AMED, BOSC, CALI, ECPG, FRGI, GERN, GTIV, HSON, IQNT, JRCC, LTRE,
MACK, MIDD, NKTR, NPSP, PME, PTIX, REFR, RSOL, UBNT, UPI, YONG, ZEUS
To this:
ABFS
AIRM
AMED
BOSC
CALI
ECPG
FRGI
GERN
GTIV
HSON
IQNT
JRCC
LTRE
MACK
MIDD
NKTR
NPSP
PME
PTIX
REFR
RSOL
UBNT
UPI
YONG
ZEUS
Hope this can help
<LinearLayout android:layout_width="fill_parent"
android:layout_height="fill_parent" android:orientation="horizontal">
<LinearLayout android:layout_width="0dip"
android:layout_height="wrap_content" android:orientation="horizontal"
android:id="@+id/linearLayout_dummy1" android:layout_weight=".15">
</LinearLayout>
<LinearLayout android:layout_height="wrap_content"
android:id="@+id/linearLayout1" android:orientation="vertical"
android:layout_width="0dip" android:layout_weight=".7">
<Button android:text="Button" android:id="@+id/button1"
android:layout_width="wrap_content" android:layout_height="wrap_content"
android:layout_gravity="center">
</Button>
<Button android:layout_width="wrap_content" android:id="@+id/button2"
android:layout_height="wrap_content" android:text="Button"
android:layout_gravity="center"></Button>
<Button android:layout_width="wrap_content" android:id="@+id/button3"
android:layout_height="wrap_content" android:text="Button"
android:layout_gravity="center"></Button>
</LinearLayout>
<LinearLayout android:layout_width="0dip"
android:layout_height="wrap_content" android:orientation="horizontal"
android:id="@+id/linearLayout_dummy2" android:layout_weight=".15">
</LinearLayout>
</LinearLayout>
(1) Set layout_width to "0dip" (2) Set the layout_height to .xx (% you want)
Awk can fix up the output to give just what the questioner asked for. On my Solaris 10 system, find -ls prints size in KB as the second field, so:
% find . -name '*.ear' -ls | awk '{print $2, $11}'
5400 ./dir1/dir2/earFile2.ear
5400 ./dir1/dir2/earFile3.ear
5400 ./dir1/dir2/earFile1.ear
Otherwise, use -exec ls -lh and pick out the size field from the output. Again on Solaris 10:
% find . -name '*.ear' -exec ls -lh {} \; | awk '{print $5, $9}'
5.3M ./dir1/dir2/earFile2.ear
5.3M ./dir1/dir2/earFile3.ear
5.3M ./dir1/dir2/earFile1.ear
I noticed this wasn't working with a static-first-then-reverse-proxy setup. Here's what that looks like:
location @app {
proxy_pass http://localhost:3000$request_uri;
}
location / {
try_files $uri $uri/ @app;
error_page 405 @app;
}
That should work - so no, there is nothing wrong with your code. However, it could also be done with a dict:
{type(str()): do_something_with_a_string,
type(dict()): do_something_with_a_dict}.get(type(x), errorhandler)()
A bit more concise and pythonic wouldn't you say?
Edit.. Heeding Avisser's advice, the code also works like this, and looks nicer:
{str: do_something_with_a_string,
dict: do_something_with_a_dict}.get(type(x), errorhandler)()
variable = id if variable.to_s.empty?
SAX
parser is working differently with a DOM
parser, it neither load any XML
document into memory nor create any object representation of the XML
document. Instead, the SAX
parser use callback function org.xml.sax.helpers.DefaultHandler
to informs clients of the XML
document structure.
SAX
Parser is faster and uses less memory than DOM
parser.
See following SAX
callback methods :
startDocument()
and endDocument()
– Method called at the start and end of an XML document.
startElement()
and endElement()
– Method called at the start and end of a document element.
characters()
– Method called with the text contents in between the start and end tags of an XML document element.
Create a simple XML file.
<?xml version="1.0"?>
<company>
<staff>
<firstname>yong</firstname>
<lastname>mook kim</lastname>
<nickname>mkyong</nickname>
<salary>100000</salary>
</staff>
<staff>
<firstname>low</firstname>
<lastname>yin fong</lastname>
<nickname>fong fong</nickname>
<salary>200000</salary>
</staff>
</company>
Java file Use SAX parser to parse the XML file.
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
public class ReadXMLFile {
public static void main(String argv[]) {
try {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
DefaultHandler handler = new DefaultHandler() {
boolean bfname = false;
boolean blname = false;
boolean bnname = false;
boolean bsalary = false;
public void startElement(String uri, String localName,String qName,
Attributes attributes) throws SAXException {
System.out.println("Start Element :" + qName);
if (qName.equalsIgnoreCase("FIRSTNAME")) {
bfname = true;
}
if (qName.equalsIgnoreCase("LASTNAME")) {
blname = true;
}
if (qName.equalsIgnoreCase("NICKNAME")) {
bnname = true;
}
if (qName.equalsIgnoreCase("SALARY")) {
bsalary = true;
}
}
public void endElement(String uri, String localName,
String qName) throws SAXException {
System.out.println("End Element :" + qName);
}
public void characters(char ch[], int start, int length) throws SAXException {
if (bfname) {
System.out.println("First Name : " + new String(ch, start, length));
bfname = false;
}
if (blname) {
System.out.println("Last Name : " + new String(ch, start, length));
blname = false;
}
if (bnname) {
System.out.println("Nick Name : " + new String(ch, start, length));
bnname = false;
}
if (bsalary) {
System.out.println("Salary : " + new String(ch, start, length));
bsalary = false;
}
}
};
saxParser.parse("c:\\file.xml", handler);
} catch (Exception e) {
e.printStackTrace();
}
}
}
Result
Start Element :company
Start Element :staff
Start Element :firstname
First Name : yong
End Element :firstname
Start Element :lastname
Last Name : mook kim
End Element :lastname
Start Element :nickname
Nick Name : mkyong
End Element :nickname
and so on...
Source(MyKong) - http://www.mkyong.com/java/how-to-read-xml-file-in-java-sax-parser/
I think onMouseEnter and onMouseLeave are the ways to go, but I don't see the need for an additional wrapper component. Here is how I implemented it:
var Link = React.createClass({
getInitialState: function(){
return {hover: false}
},
toggleHover: function(){
this.setState({hover: !this.state.hover})
},
render: function() {
var linkStyle;
if (this.state.hover) {
linkStyle = {backgroundColor: 'red'}
} else {
linkStyle = {backgroundColor: 'blue'}
}
return(
<div>
<a style={linkStyle} onMouseEnter={this.toggleHover} onMouseLeave={this.toggleHover}>Link</a>
</div>
)
}
You can then use the state of hover (true/false) to change the style of the link.
I have written a little JavaScript library called balanced to help with this task. You can accomplish this by doing
balanced.matches({
source: source,
open: '(',
close: ')'
});
You can even do replacements:
balanced.replacements({
source: source,
open: '(',
close: ')',
replace: function (source, head, tail) {
return head + source + tail;
}
});
Here's a more complex and interactive example JSFiddle.
You can use a custom style:
<!-- Alert Dialog -->
<style name="ThemeOverlay.MaterialComponents.MaterialAlertDialog_Background" parent="@style/ThemeOverlay.MaterialComponents.MaterialAlertDialog">
<!-- Background Color-->
<item name="android:background">@color/.....</item>
<!-- Text Color for title and message -->
<item name="colorOnSurface">@color/......</item>
<!-- Style for positive button -->
<item name="buttonBarPositiveButtonStyle">@style/PositiveButtonStyle</item>
<!-- Style for negative button -->
<item name="buttonBarNegativeButtonStyle">@style/NegativeButtonStyle</item>
</style>
<style name="PositiveButtonStyle" parent="@style/Widget.MaterialComponents.Button">
<!-- text color for the button -->
<item name="android:textColor">@color/.....</item>
<!-- Background tint for the button -->
<item name="backgroundTint">@color/primaryDarkColor</item>
</style>
And just use the default MaterialAlertDialogBuilder
:
new MaterialAlertDialogBuilder(AlertDialogActivity.this,
R.style.ThemeOverlay_MaterialComponents_MaterialAlertDialog_Background)
.setTitle("Dialog")
.setMessage("Message... ....")
.setPositiveButton("Ok", /* listener = */ null)
.show();
You could use the same mechanism the XAML reading system uses: Type converters
var converter = new System.Windows.Media.BrushConverter();
var brush = (Brush)converter.ConvertFromString("#FFFFFF90");
Fill = brush;
Also, in addition to torek's answer: one thing that stands out is that you're using a lazily-evaluated macro assignment.
If you're on GNU Make, use the :=
assignment instead of =
. This assignment causes the right hand side to be expanded immediately, and stored in the left hand variable.
FILES := $(shell ...) # expand now; FILES is now the result of $(shell ...)
FILES = $(shell ...) # expand later: FILES holds the syntax $(shell ...)
If you use the =
assignment, it means that every single occurrence of $(FILES)
will be expanding the $(shell ...)
syntax and thus invoking the shell command. This will make your make job run slower, or even have some surprising consequences.
Use mongodump
:
$ ./mongodump --host prod.example.com
connected to: prod.example.com
all dbs
DATABASE: log to dump/log
log.errors to dump/log/errors.bson
713 objects
log.analytics to dump/log/analytics.bson
234810 objects
DATABASE: blog to dump/blog
blog.posts to dump/log/blog.posts.bson
59 objects
DATABASE: admin to dump/admin
Source: http://www.mongodb.org/display/DOCS/Import+Export+Tools
body-parser is a piece of express middleware that reads a form's input and stores it as a javascript object accessible through
req.body
'body-parser' must be installed (vianpm install --save body-parser
) For more info see: https://github.com/expressjs/body-parser
var bodyParser = require('body-parser');
app.use(bodyParser.json()); // support json encoded bodies
app.use(bodyParser.urlencoded({ extended: true })); // support encoded bodies
When extended
is set to true, then deflated (compressed) bodies will be inflated; when extended
is set to false, deflated bodies are rejected.
document.head.innerHTML += `_x000D_
<style>_x000D_
h1 {_x000D_
color: red; _x000D_
}_x000D_
p {_x000D_
color: blue;_x000D_
}_x000D_
</style>`
_x000D_
<h1>I'm red!</h1>_x000D_
<p>I'm blue!</p>
_x000D_
By far the most straightforward solution. All you have to do is type the same as how you'd normally declare style
tags, between the backticks
I had the same error
[Vue warn]: Unknown custom element: - did you register the component correctly? For recursive components, make sure to provide the "name" option.
however, I totally forgot to run npm install && npm run dev
to compiling the js files.
maybe this helps newbies like me.
LOESS is a very good approach, as Dirk said.
Another option is using Bezier splines, which may in some cases work better than LOESS if you don't have many data points.
Here you'll find an example: http://rosettacode.org/wiki/Cubic_bezier_curves#R
# x, y: the x and y coordinates of the hull points
# n: the number of points in the curve.
bezierCurve <- function(x, y, n=10)
{
outx <- NULL
outy <- NULL
i <- 1
for (t in seq(0, 1, length.out=n))
{
b <- bez(x, y, t)
outx[i] <- b$x
outy[i] <- b$y
i <- i+1
}
return (list(x=outx, y=outy))
}
bez <- function(x, y, t)
{
outx <- 0
outy <- 0
n <- length(x)-1
for (i in 0:n)
{
outx <- outx + choose(n, i)*((1-t)^(n-i))*t^i*x[i+1]
outy <- outy + choose(n, i)*((1-t)^(n-i))*t^i*y[i+1]
}
return (list(x=outx, y=outy))
}
# Example usage
x <- c(4,6,4,5,6,7)
y <- 1:6
plot(x, y, "o", pch=20)
points(bezierCurve(x,y,20), type="l", col="red")
<html>
<head>
<style type="text/css">
.div-main{
height:200px;
width:200px;
overflow: hidden;
background:url(img.jpg) no-repeat center center
}
</style>
</head>
<body>
<div class="div-main">
</div>
</body>
I going to contribute my approach to handling this rotation issue. This may not be relevant to OP as he's not using AsyncTask
, but maybe others will find it useful. It's pretty simple but it seems to do the job for me:
I have a login activity with a nested AsyncTask
class called BackgroundLoginTask
.
In my BackgroundLoginTask
I don't do anything out of the ordinary except to add a null check upon calling ProgressDialog
's dismiss:
@Override
protected void onPostExecute(Boolean result)
{
if (pleaseWaitDialog != null)
pleaseWaitDialog.dismiss();
[...]
}
This is to handle the case where the background task finishes while the Activity
is not visible and, therefore, the progress dialog has already been dismissed by the onPause()
method.
Next, in my parent Activity
class, I create global static handles to my AsyncTask
class and my ProgressDialog
(the AsyncTask
, being nested, can access these variables):
private static BackgroundLoginTask backgroundLoginTask;
private static ProgressDialog pleaseWaitDialog;
This serves two purposes: First, it allows my Activity
to always access the AsyncTask
object even from a new, post-rotated activity. Second, it allows my BackgroundLoginTask
to access and dismiss the ProgressDialog
even after a rotate.
Next, I add this to onPause()
, causing the progress dialog to disappear when our Activity
is leaving the foreground (preventing that ugly "force close" crash):
if (pleaseWaitDialog != null)
pleaseWaitDialog.dismiss();
Finally, I have the following in my onResume()
method:
if ((backgroundLoginTask != null) && (backgroundLoginTask.getStatus() == Status.RUNNING))
{
if (pleaseWaitDialog != null)
pleaseWaitDialog.show();
}
This allows the Dialog
to reappear after the Activity
is recreated.
Here is the entire class:
public class NSFkioskLoginActivity extends NSFkioskBaseActivity {
private static BackgroundLoginTask backgroundLoginTask;
private static ProgressDialog pleaseWaitDialog;
private Controller cont;
// This is the app entry point.
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (CredentialsAvailableAndValidated())
{
//Go to main menu and don't run rest of onCreate method.
gotoMainMenu();
return;
}
setContentView(R.layout.login);
populateStoredCredentials();
}
//Save current progress to options when app is leaving foreground
@Override
public void onPause()
{
super.onPause();
saveCredentialsToPreferences(false);
//Get rid of progress dialog in the event of a screen rotation. Prevents a crash.
if (pleaseWaitDialog != null)
pleaseWaitDialog.dismiss();
}
@Override
public void onResume()
{
super.onResume();
if ((backgroundLoginTask != null) && (backgroundLoginTask.getStatus() == Status.RUNNING))
{
if (pleaseWaitDialog != null)
pleaseWaitDialog.show();
}
}
/**
* Go to main menu, finishing this activity
*/
private void gotoMainMenu()
{
startActivity(new Intent(getApplicationContext(), NSFkioskMainMenuActivity.class));
finish();
}
/**
*
* @param setValidatedBooleanTrue If set true, method will set CREDS_HAVE_BEEN_VALIDATED to true in addition to saving username/password.
*/
private void saveCredentialsToPreferences(boolean setValidatedBooleanTrue)
{
SharedPreferences settings = getSharedPreferences(APP_PREFERENCES, MODE_PRIVATE);
SharedPreferences.Editor prefEditor = settings.edit();
EditText usernameText = (EditText) findViewById(R.id.editTextUsername);
EditText pswText = (EditText) findViewById(R.id.editTextPassword);
prefEditor.putString(USERNAME, usernameText.getText().toString());
prefEditor.putString(PASSWORD, pswText.getText().toString());
if (setValidatedBooleanTrue)
prefEditor.putBoolean(CREDS_HAVE_BEEN_VALIDATED, true);
prefEditor.commit();
}
/**
* Checks if user is already signed in
*/
private boolean CredentialsAvailableAndValidated() {
SharedPreferences settings = getSharedPreferences(APP_PREFERENCES,
MODE_PRIVATE);
if (settings.contains(USERNAME) && settings.contains(PASSWORD) && settings.getBoolean(CREDS_HAVE_BEEN_VALIDATED, false) == true)
return true;
else
return false;
}
//Populate stored credentials, if any available
private void populateStoredCredentials()
{
SharedPreferences settings = getSharedPreferences(APP_PREFERENCES,
MODE_PRIVATE);
settings.getString(USERNAME, "");
EditText usernameText = (EditText) findViewById(R.id.editTextUsername);
usernameText.setText(settings.getString(USERNAME, ""));
EditText pswText = (EditText) findViewById(R.id.editTextPassword);
pswText.setText(settings.getString(PASSWORD, ""));
}
/**
* Validate credentials in a seperate thread, displaying a progress circle in the meantime
* If successful, save credentials in preferences and proceed to main menu activity
* If not, display an error message
*/
public void loginButtonClick(View view)
{
if (phoneIsOnline())
{
EditText usernameText = (EditText) findViewById(R.id.editTextUsername);
EditText pswText = (EditText) findViewById(R.id.editTextPassword);
//Call background task worker with username and password params
backgroundLoginTask = new BackgroundLoginTask();
backgroundLoginTask.execute(usernameText.getText().toString(), pswText.getText().toString());
}
else
{
//Display toast informing of no internet access
String notOnlineMessage = getResources().getString(R.string.noNetworkAccessAvailable);
Toast toast = Toast.makeText(getApplicationContext(), notOnlineMessage, Toast.LENGTH_SHORT);
toast.show();
}
}
/**
*
* Takes two params: username and password
*
*/
public class BackgroundLoginTask extends AsyncTask<Object, String, Boolean>
{
private Exception e = null;
@Override
protected void onPreExecute()
{
cont = Controller.getInstance();
//Show progress dialog
String pleaseWait = getResources().getString(R.string.pleaseWait);
String commWithServer = getResources().getString(R.string.communicatingWithServer);
if (pleaseWaitDialog == null)
pleaseWaitDialog= ProgressDialog.show(NSFkioskLoginActivity.this, pleaseWait, commWithServer, true);
}
@Override
protected Boolean doInBackground(Object... params)
{
try {
//Returns true if credentials were valid. False if not. Exception if server could not be reached.
return cont.validateCredentials((String)params[0], (String)params[1]);
} catch (Exception e) {
this.e=e;
return false;
}
}
/**
* result is passed from doInBackground. Indicates whether credentials were validated.
*/
@Override
protected void onPostExecute(Boolean result)
{
//Hide progress dialog and handle exceptions
//Progress dialog may be null if rotation has been switched
if (pleaseWaitDialog != null)
{
pleaseWaitDialog.dismiss();
pleaseWaitDialog = null;
}
if (e != null)
{
//Show toast with exception text
String networkError = getResources().getString(R.string.serverErrorException);
Toast toast = Toast.makeText(getApplicationContext(), networkError, Toast.LENGTH_SHORT);
toast.show();
}
else
{
if (result == true)
{
saveCredentialsToPreferences(true);
gotoMainMenu();
}
else
{
String toastText = getResources().getString(R.string.invalidCredentialsEntered);
Toast toast = Toast.makeText(getApplicationContext(), toastText, Toast.LENGTH_SHORT);
toast.show();
}
}
}
}
}
I am by no means a seasoned Android developer, so feel free to comment.
I added a directory to svn, then I accidentally deleted the .svn folder within.
I used
svn delete --keep-local folderName
to fix my problem.
When entered as the reference of a Named range
, it refers to range on the sheet the named range is used on.
For example, create a named range MyName
refering to =SUM(!B1:!K1)
Place a formula on Sheet1
=MyName
. This will sum Sheet1!B1:K1
Now place the same formula (=MyName
) on Sheet2
. That formula will sum Sheet2!B1:K1
Note: (as pnuts commented) this and the regular SheetName!B1:K1
format are relative, so reference different cells as the =MyName
formula is entered into different cells.
The PID is stored in $$
.
Example: kill -9 $$
will kill the shell instance it is called from.
getText is a member of the your Activity so it must be called when "this" exists. Your static variable is initialized when your class is loaded before your Activity is created.
Since you want the variable to be initialized from a Resource string then it cannot be static. If you want it to be static you can initialize it with the String value.
Try using TextView.setRawInputType() it corresponds to the android:inputType
attribute.
After trying to solve this issue for some time, I managed to come with a working solution that is also valid:
var event = new MouseEvent('mousedown');
element.dispatchEvent(event);
I've tried to implement this in Jquery as well, using trigger
and mousedown
or only mousedown
but with no success.
<form method="post" action="">
<table>
<tr><td><input name="Submit" type="submit" value="refresh"></td></tr>
</table>
</form>
<?php
if(isset($_POST['Submit']))
{
header("Location: http://yourpagehere.com");
}
?>
No, this is not possible. In documents that make use of CSS, an inline style
attribute can only contain property declarations; the same set of statements that appears in each ruleset in a stylesheet. From the Style Attributes spec:
The value of the style attribute must match the syntax of the contents of a CSS declaration block (excluding the delimiting braces), whose formal grammar is given below in the terms and conventions of the CSS core grammar:
declaration-list : S* declaration? [ ';' S* declaration? ]* ;
Neither selectors (including pseudo-elements), nor at-rules, nor any other CSS construct are allowed.
Think of inline styles as the styles applied to some anonymous super-specific ID selector: those styles only apply to that one very element with the style
attribute. (They take precedence over an ID selector in a stylesheet too, if that element has that ID.) Technically it doesn't work like that; this is just to help you understand why the attribute doesn't support pseudo-class or pseudo-element styles (it has more to do with how pseudo-classes and pseudo-elements provide abstractions of the document tree that can't be expressed in the document language).
Note that inline styles participate in the same cascade as selectors in rule sets, and take highest precedence in the cascade (!important
notwithstanding). So they take precedence even over pseudo-class states. Allowing pseudo-classes or any other selectors in inline styles would possibly introduce a new cascade level, and with it a new set of complications.
Note also that very old revisions of the Style Attributes spec did originally propose allowing this, however it was scrapped, presumably for the reason given above, or because implementing it was not a viable option.
Based on all the above I suggest a slightly modified version (python3):
None
Code:
import subprocess
proc = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, universal_newlines=True)
while True:
rd = proc.stdout.readline()
print(rd, end='') # and whatever you want to do...
if not rd: # EOF
returncode = proc.poll()
if returncode is not None:
break
time.sleep(0.1) # cmd closed stdout, but not exited yet
# You may want to check on ReturnCode here
Based on Guy Daher's answer.
I try to avoid using ? because it can cause an application crash if the GetCurrentContext() returns nil.
I would do nil check if statement:
class CustomView: UIView
{
override func draw(_ rect: CGRect)
{
super.draw(rect)
if let context = UIGraphicsGetCurrentContext()
{
context.setStrokeColor(UIColor.gray.cgColor)
context.setLineWidth(1)
context.move(to: CGPoint(x: 0, y: bounds.height))
context.addLine(to: CGPoint(x: bounds.width, y: bounds.height))
context.strokePath()
}
}
}
I was trying to build a jar from a multi-module Kotlin app and was getting the notorious 'no main manifest attribute' error. Creating the manifest directory in src/main/resources
didn't work either.
Instead, it works when creating it in src
directly: src/META-INF/MANIFEST.MF
.
The syntax is wrong, it should instead be
svn merge <what(the range)> <from(your dev branch)> <to(trunk/trunk local copy)>
try{
let vari = obj.propTest; // obj may be don't have propTest property
...
} catch(NullException){
// do something here
}
I think using try catch will avoid any error of null check, also in Angular or JavaScript Just catching null exception and process in it.
var inValid = new RegExp('^[_A-z0-9]{1,}$');
var value = "test string";
var k = inValid.test(value);
alert(k);
Try this...
You don't need to override onCreateOptionsMenu() in your Fragment class again. Menu items visibility can be changed by overriding onPrepareOptionsMenu() method available in Fragment class.
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
}
@Override
public void onPrepareOptionsMenu(Menu menu) {
menu.findItem(R.id.action_search).setVisible(false);
super.onPrepareOptionsMenu(menu);
}
A simple example of O(1)
might be return 23;
-- whatever the input, this will return in a fixed, finite time.
A typical example of O(N log N)
would be sorting an input array with a good algorithm (e.g. mergesort).
A typical example if O(log N)
would be looking up a value in a sorted input array by bisection.
There is actually a media query for that:
@media (hover: none) { … }
Apart from Firefox, it's fairly well supported. Safari and Chrome being the most common browsers on mobile devices, it might suffice untill greater adoption.
It would seem that is.nan
doesn't actually have a method for data frames, unlike is.na
. So, let's fix that!
is.nan.data.frame <- function(x)
do.call(cbind, lapply(x, is.nan))
data123[is.nan(data123)] <- 0
editTextObject.setText(CharSequence)
http://developer.android.com/reference/android/widget/TextView.html#setText(java.lang.CharSequence)
Very similar to already posted answers, but piping seems more PowerShell-like:
$PSCommandPath | Split-Path -Parent
Use the std::getline()
from <string>
.
istream & getline(istream & is,std::string& str)
So, for your case it would be:
std::getline(read,x);
Try adding parentheses around the row in table1
e.g.
DELETE
FROM table1
WHERE (stn, year(datum)) IN (SELECT stn, jaar FROM table2);
The above is Standard SQL-92 code. If that doesn't work, it could be that your SQL product of choice doesn't support it.
Here's another Standard SQL approach that is more widely implemented among vendors e.g. tested on SQL Server 2008:
MERGE INTO table1 AS t1
USING table2 AS s1
ON t1.stn = s1.stn
AND s1.jaar = YEAR(t1.datum)
WHEN MATCHED THEN DELETE;
Encode or decode byte arrays:
byte[] encoded = Base64.getEncoder().encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = Base64.getDecoder().decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
String encoded = Base64.getEncoder().encodeToString("Hello".getBytes());
println(encoded); // Outputs "SGVsbG8="
String decoded = new String(Base64.getDecoder().decode(encoded.getBytes()));
println(decoded) // Outputs "Hello"
For more info, see Base64.
Base64 is not bundled with Java versions less than 8. I recommend using Apache Commons Codec.
For direct byte arrays:
Base64 codec = new Base64();
byte[] encoded = codec.encode("Hello".getBytes());
println(new String(encoded)); // Outputs "SGVsbG8="
byte[] decoded = codec.decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
Base64 codec = new Base64();
String encoded = codec.encodeBase64String("Hello".getBytes());
println(encoded); // Outputs "SGVsbG8="
String decoded = new String(codec.decodeBase64(encoded));
println(decoded) // Outputs "Hello"
If you're working in a Spring project already, you may find their org.springframework.util.Base64Utils
class more ergonomic:
For direct byte arrays:
byte[] encoded = Base64Utils.encode("Hello".getBytes());
println(new String(encoded)) // Outputs "SGVsbG8="
byte[] decoded = Base64Utils.decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
String encoded = Base64Utils.encodeToString("Hello".getBytes());
println(encoded); // Outputs "SGVsbG8="
String decoded = Base64Utils.decodeFromString(encoded);
println(new String(decoded)) // Outputs "Hello"
If you are using the Android SDK before Java 8 then your best option is to use the bundled android.util.Base64
.
For direct byte arrays:
byte[] encoded = Base64.encode("Hello".getBytes());
println(new String(encoded)) // Outputs "SGVsbG8="
byte [] decoded = Base64.decode(encoded);
println(new String(decoded)) // Outputs "Hello"
Or if you just want the strings:
String encoded = Base64.encodeToString("Hello".getBytes());
println(encoded); // Outputs "SGVsbG8="
String decoded = new String(Base64.decode(encoded));
println(decoded) // Outputs "Hello"