Your function expects a reference to an actual string pointer in the calling scope, not an anonymous string pointer. Thus:
string s;
string* _s = &s;
myfunc(_s);
should compile just fine.
However, this is only useful if you intend to modify the pointer you pass to the function. If you intend to modify the string itself you should use a reference to the string as Sake suggested. With that in mind it should be more obvious why the compiler complains about you original code. In your code the pointer is created 'on the fly', modifying that pointer would have no consequence and that is not what is intended. The idea of a reference (vs. a pointer) is that a reference always points to an actual object.
This is a known bug: link. Upcoming release 6.2.2 fixes this for OS X (Unfortunately, Linux version is still broken).
At least on my computer it's not dissapeared, just folded, and it's edge is almost merged with the edge of 'Action Output' block. When you move your mouse to that edge, the cursor starts looking like a dash with two arrows. Slowly move it couple of pixels higher until you catch the small 1px area where the cursor changes to a dash with a single arrow. Then catch it and pull : )
I've made a couple of photos to illustrate this.
Most likely the reason your push did not work is order of execution.
use
is a compile time directive. You push
is done at execution time:
push ( @INC,"directory_path/more_path");
use Foo.pm; # In directory path/more_path
You can use a BEGIN block to get around this problem:
BEGIN {
push ( @INC,"directory_path/more_path");
}
use Foo.pm; # In directory path/more_path
IMO, it's clearest, and therefore best to use lib
:
use lib "directory_path/more_path";
use Foo.pm; # In directory path/more_path
See perlmod for information about BEGIN and other special blocks and when they execute.
Edit
For loading code relative to your script/library, I strongly endorse File::FindLib
You can say use File::FindLib 'my/test/libs';
to look for a library directory anywhere above your script in the path.
Say your work is structured like this:
/home/me/projects/
|- shared/
| |- bin/
| `- lib/
`- ossum-thing/
`- scripts
|- bin/
`- lib/
Inside a script in ossum-thing/scripts/bin
:
use File::FindLib 'lib/';
use File::FindLib 'shared/lib/';
Will find your library directories and add them to your @INC
.
It's also useful to create a module that contains all the environment set-up needed to run your suite of tools and just load it in all the executables in your project.
use File::FindLib 'lib/MyEnvironment.pm'
Make sure it's referenced in your web.config:
Well, I would do it like this:
select datediff(minute,'1990-1-1',datetime)
where '1990-1-1' is an arbitrary base datetime.
Size of a pointer should be 8 byte on any 64-bit C/C++ compiler, but not necessarily size of int.
import subprocess
filepath="D:/path/to/batch/myBatch.bat"
p = subprocess.Popen(filepath, shell=True, stdout = subprocess.PIPE)
stdout, stderr = p.communicate()
print p.returncode # is 0 if success
if you just want to close form1 from form2 without closing form2 as well in the process, as the title suggests, then you could pass a reference to form 1 along to form 2 when you create it and use that to close form 1
for example you could add a
public class Form2 : Form
{
Form2(Form1 parentForm):base()
{
this.parentForm = parentForm;
}
Form1 parentForm;
.....
}
field and constructor to Form2
if you want to first close form2 and then form1 as the text of the question suggests, I'd go with Justins answer of returning an appropriate result to form1 on upon closing form2
I was looking for something like this. It works well.
So get the mobile number in WooCommerce plugin like this -
$customer_id = get_current_user_id();
print get_user_meta($customer_id, 'billing_phone', true);
You can get the base path by using the following code and append your needed path with that.
string path = System.AppDomain.CurrentDomain.BaseDirectory;
GET / SET answer that also works in react native (you can't assign to Object.prototype
currently):
Object.defineProperty(Object.prototype, 'getNestedProp', {
value: function(desc) {
var obj = this;
var arr = desc.split(".");
while(arr.length && (obj = obj[arr.shift()]));
return obj;
},
enumerable: false
});
Object.defineProperty(Object.prototype, 'setNestedProp', {
value: function(desc, value) {
var obj = this;
var arr = desc.split(".");
var last = arr.pop();
while(arr.length && (obj = obj[arr.shift()]));
obj[last] = value;
},
enumerable: false
});
Usage:
var a = { values: [{ value: null }] };
var b = { one: { two: 'foo' } };
a.setNestedProp('values.0.value', b.getNestedProp('one.two'));
console.log(a.values[0].value); // foo
You're right using div.container-fluid
and you also need a div.row
child. Then, the content must be placed inside without any grid columns.
If you have a look at the docs you can find this text:
- Rows must be placed within a .container (fixed-width) or .container-fluid (full-width) for proper alignment and padding.
- Use rows to create horizontal groups of columns.
Not using grid columns it's ok as stated here:
- Content should be placed within columns, and only columns may be immediate children of rows.
And looking at this example, you can read this text:
Full width, single column: No grid classes are necessary for full-width elements.
Here's a live example showing some elements using the correct layout. This way you don't need any custom CSS or hack.
You could use urllib as @roippi said:
import urllib2
data = '{"nw_src": "10.0.0.1/32", "nw_dst": "10.0.0.2/32", "nw_proto": "ICMP", "actions": "ALLOW", "priority": "10"}'
url = 'http://localhost:8080/firewall/rules/0000000000000001'
req = urllib2.Request(url, data, {'Content-Type': 'application/json'})
f = urllib2.urlopen(req)
for x in f:
print(x)
f.close()
NPM
- Manages packages but doesn't make life easy executing any.NPX
- A tool for executing Node packages.
NPX
comes bundled withNPM
version5.2+
NPM
by itself does not simply run any package. it doesn't run any package in a matter of fact. If you want to run a package using NPM, you must specify that package in your package.json
file.
When executables are installed via NPM packages, NPM links to them:
./node_modules/.bin/
directory.bin/
directory (e.g. /usr/local/bin
) on Linux or at %AppData%/npm
on Windows.One might install a package locally on a certain project:
npm install some-package
Now let's say you want NodeJS to execute that package from the command line:
$ some-package
The above will fail. Only globally installed packages can be executed by typing their name only.
To fix this, and have it run, you must type the local path:
$ ./node_modules/.bin/some-package
You can technically run a locally installed package by editing your packages.json
file and adding that package in the scripts
section:
{
"name": "whatever",
"version": "1.0.0",
"scripts": {
"some-package": "some-package"
}
}
Then run the script using npm run-script
(or npm run
):
npm run some-package
npx
will check whether <command>
exists in $PATH
, or in the local project binaries, and execute it. So, for the above example, if you wish to execute the locally-installed package some-package
all you need to do is type:
npx some-package
Another major advantage of npx
is the ability to execute a package which wasn't previously installed:
$ npx create-react-app my-app
The above example will generate a react
app boilerplate within the path the command had run in, and ensures that you always use the latest version of a generator or build tool without having to upgrade each time you’re about to use it.
npx
command may be helpful in the script
section of a package.json
file,
when it is unwanted to define a dependency which might not be commonly used or any other reason:
"scripts": {
"start": "npx [email protected]",
"serve": "npx http-server"
}
Call with: npm run serve
sudo chown -R yourname:www-data cake
then
sudo chmod -R g+s cake
First command changes owner and group.
Second command adds s attribute which will keep new files and directories within cake having the same group permissions.
Landed here.....ended up here: https://html.spec.whatwg.org/multipage/forms.html#valid-e-mail-address
...which provided the following regex:
/^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/
...which I found thanks to a note on the jQuery Validation plugin readme: https://github.com/jzaefferer/jquery-validation/blob/master/README.md#reporting-an-issue
So, the updated version of @Fabian's answer would be:
function IsEmail(email) {
var regex = /^[a-zA-Z0-9.!#$%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$/;
return regex.test(email);
}
Hope that helps
This worked for me using python 3.
It gets a list of URLs from the csv file and starts downloading them into a folder. In case the content or image does not exist it takes that exception and continues making its magic.
import urllib.request
import csv
import os
errorCount=0
file_list = "/Users/$USER/Desktop/YOUR-FILE-TO-DOWNLOAD-IMAGES/image_{0}.jpg"
# CSV file must separate by commas
# urls.csv is set to your current working directory make sure your cd into or add the corresponding path
with open ('urls.csv') as images:
images = csv.reader(images)
img_count = 1
print("Please Wait.. it will take some time")
for image in images:
try:
urllib.request.urlretrieve(image[0],
file_list.format(img_count))
img_count += 1
except IOError:
errorCount+=1
# Stop in case you reach 100 errors downloading images
if errorCount>100:
break
else:
print ("File does not exist")
print ("Done!")
I wouldn't bother doing it in Linq2SQL. Create a stored Procedure for the query you want and understand and then create the object to the stored procedure in the framework or just connect direct to it.
One can access the "Find in Files" window via the drop-down menu selection and search all files in the Entire Solution: Edit > Find and Replace > Find in Files
Other, alternative is to open the "Find in Files" window via the "Standard Toolbars" button as highlighted in the below screen-short:
Assuming you are trying to find if a div exists
$('div').length ? alert('div found') : alert('Div not found')
The other way around, if you have problems ADDING the lines to your panel dont forget to add the to your TABLE. By default (http://getbootstrap.com/components/#panels), it is suppose to add the line but It helped me to add the tag so now the row lines are shown.
The following example "probably" wont display the lines between rows:
<div class="panel panel-default">
<!-- Default panel contents -->
<div class="panel-heading">Panel heading</div>
<!-- Table -->
<table class="table">
<tr><td> Hi 1! </td></tr>
<tr><td> Hi 2! </td></tr>
</table>
</div>
The following example WILL display the lines between rows:
<div class="panel panel-default">
<!-- Default panel contents -->
<div class="panel-heading">Panel heading</div>
<!-- Table -->
<table class="table">
<thead></thead>
<tr><td> Hi 1! </td></tr>
<tr><td> Hi 2! </td></tr>
</table>
</div>
I suggest you to read the Enumeration: Traversing a Collection’s Elements part of the Collections Programming Guide for Cocoa. There is a sample code for your need.
Lets first create a table with dummy data -->
Create Table CUMULATIVESUM (id tinyint , SomeValue tinyint)
**Now let put some data in the table**
Insert Into CUMULATIVESUM
Select 1, 10 union
Select 2, 2 union
Select 3, 6 union
Select 4, 10
here I am joining same table (SELF Joining)
Select c1.ID, c1.SomeValue, c2.SomeValue
From CumulativeSum c1, CumulativeSum c2
Where c1.id >= c2.ID
Order By c1.id Asc
RESULT :
ID SomeValue SomeValue
1 10 10
2 2 10
2 2 2
3 6 10
3 6 2
3 6 6
4 10 10
4 10 2
4 10 6
4 10 10
here we go now just sum the Somevalue of t2 and we`ll get the ans
Select c1.ID, c1.SomeValue, Sum(c2.SomeValue) CumulativeSumValue
From CumulativeSum c1, CumulativeSum c2
Where c1.id >= c2.ID
Group By c1.ID, c1.SomeValue
Order By c1.id Asc
FOR SQL SERVER 2012 and above(Much better perform)
Select c1.ID, c1.SomeValue,
SUM (SomeValue) OVER (ORDER BY c1.ID )
From CumulativeSum c1
Order By c1.id Asc
Desired Result
ID SomeValue CumlativeSumValue
1 10 10
2 2 12
3 6 18
4 10 28
Drop Table CumulativeSum
Clear the dummytable
I ended up installing a new copy of Eclipse - JAVA EE, and it all works now.
Add that component to entryComponents in @NgModule of your app's module:
entryComponents:[ConfirmComponent],
as well as Declarations:
declarations: [
AppComponent,
ConfirmComponent
]
In your .htaccess you can add:
PHP 5.x
<IfModule mod_php5.c>
php_value memory_limit 64M
</IfModule>
PHP 7.x
<IfModule mod_php7.c>
php_value memory_limit 64M
</IfModule>
If page breaks again, then you are using PHP as mod_php in apache, but error is due to something else.
If page does not break, then you are using PHP as CGI module and therefore cannot use php values - in the link I've provided might be solution but I'm not sure you will be able to apply it.
Read more on http://support.tigertech.net/php-value
Why use a constructor and prototyping for a single object?
The above is equivalent to:
var earth= {
someMethod: function () {
if (console && console.log)
console.log('some method');
}
};
privateFunction1();
privateFunction2();
return {
Person: Constructors.Person,
PlanetEarth: earth
};
Instead of using Bitmap
, you can also do this through a trivial InputStream
. Well, I am not sure, but I think it's a bit efficient.
InputStream inputStream = new FileInputStream(fileName); // You can get an inputStream using any I/O API
byte[] bytes;
byte[] buffer = new byte[8192];
int bytesRead;
ByteArrayOutputStream output = new ByteArrayOutputStream();
try {
while ((bytesRead = inputStream.read(buffer)) != -1) {
output.write(buffer, 0, bytesRead);
}
}
catch (IOException e) {
e.printStackTrace();
}
bytes = output.toByteArray();
String encodedString = Base64.encodeToString(bytes, Base64.DEFAULT);
I tried many solutions for this, and this is the one that worked for me :
1.commit/save container to new image :
ps:"Our container CONTAINER_NAME has a mounted volume at '/var/home'" ( you have to inspect your container to specify its volume path : # docker inspect CONTAINER_NAME )
Now when you look at ${pwd}/backup , you will find our volume under tar format.
Until now, we have our conatainer's image 'IMAGE_NAME.tar' and its volume 'volume_backup.tar'.
Now you can , recreate the same old container on a new host.
DateTime temp;
try
{
temp = Convert.ToDateTime(grd.Rows[e.RowIndex].Cells["dateg"].Value);
grd.Rows[e.RowIndex].Cells["dateg"].Value = temp.ToString("yyyy/MM/dd");
}
catch
{
MessageBox.Show("Sorry The date not valid", "Error", MessageBoxButtons.OK, MessageBoxIcon.Stop,MessageBoxDefaultButton.Button1,MessageBoxOptions .RightAlign);
grd.Rows[e.RowIndex].Cells["dateg"].Value = null;
}
Use the @Input() decorator in your child component to allow the parent to bind to this input.
In the child component you declare it as is :
@Input() myInputName: myType
To bind a property from parent to a child you must add in you template the binding brackets and the name of your input between them.
Example :
<my-child-component [myChildInputName]="myParentVar"></my-child-component>
But beware, objects are passed as a reference, so if the object is updated in the child the parent's var will be too updated. This might lead to some unwanted behaviour sometime. With primary types the value is copied.
To go further read this :
Docs : https://angular.io/docs/ts/latest/cookbook/component-communication.html
You can get these parameter list in ControllerContext.RoutValues object as key-value pair.
You can store it in some variable and you make use of that variable in your logic.
Directly, you can't, and that's a good thing. The browser's alert is there for a reason. This thread should answer your question:
Prevent Back button from showing POST confirmation alert
Two key workarounds suggested were the PRG pattern, and an AJAX submit followed by a scripting relocation.
Note that if your method allows for a GET and not a POST submission method, then that would both solve the problem and better fit with convention. Those solutions are provided on the assumption you want/need to POST data.
Play with tcpdump
or wireshark
and see what commands are sent to the server itself
Try this
printf (printf "$username\r\n$password\r\nwhoami\r\nexit\r\n") | ncat $target 23
Some servers require a delay with the password as it does not hold lines on the stack
printf (printf "$username\r\n";sleep 1;printf "$password\r\nwhoami\r\nexit\r\n") | ncat $target 23**
Here's one explanation:
Once a socket is no longer required, the calling program can discard the socket by applying a close subroutine to the socket descriptor. If a reliable delivery socket has data associated with it when a close takes place, the system continues to attempt data transfer. However, if the data is still undelivered, the system discards the data. Should the application program have no use for any pending data, it can use the shutdown subroutine on the socket prior to closing it.
If you have multiple active buttons on one page then you can do something like this:
Mark the first button you want to trigger on the Enter keypress as the default button on the form. For the second button, associate it to the Backspace button on the keyboard. The Backspace eventcode is 8.
$(document).on("keydown", function(event) {_x000D_
if (event.which.toString() == "8") {_x000D_
var findActiveElementsClosestForm = $(document.activeElement).closest("form");_x000D_
_x000D_
if (findActiveElementsClosestForm && findActiveElementsClosestForm.length) {_x000D_
$("form#" + findActiveElementsClosestForm[0].id + " .secondary_button").trigger("click");_x000D_
}_x000D_
}_x000D_
});
_x000D_
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.2.1.min.js"></script>_x000D_
_x000D_
<form action="action" method="get" defaultbutton="TriggerOnEnter">_x000D_
<input type="submit" id="PreviousButton" name="prev" value="Prev" class="secondary_button" />_x000D_
<input type="submit" id='TriggerOnEnter' name="next" value="Next" class="primary_button" />_x000D_
</form>
_x000D_
This works for me for Django 1.9 . The Python script to execute was in the root of the Django project.
import django
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "PROJECT_NAME.settings")
django.setup()
from APP_NAME.models import *
Set PROJECT_NAME and APP_NAME to yours
You can use the Task Parallel Library. To be more exact, you can use Task.Wait(TimeSpan)
:
using System.Threading.Tasks;
var task = Task.Run(() => SomeMethod(input));
if (task.Wait(TimeSpan.FromSeconds(10)))
return task.Result;
else
throw new Exception("Timed out");
If there is no vertical scrolling then you can use position:absolute
and height:100%
declared on html and body elements.
Another option is to use viewport height units, see Make div 100% height of browser window
Absolute position Example:
html, body {_x000D_
height:100%;_x000D_
position: absolute;_x000D_
background-color:red;_x000D_
}_x000D_
.button{_x000D_
height:50%;_x000D_
background-color:white;_x000D_
}
_x000D_
<div class="button">BUTTON</div>
_x000D_
html, body {min-height:100vh;background:gray;_x000D_
}_x000D_
.col-100vh {_x000D_
height:100vh;_x000D_
}_x000D_
.col-50vh {_x000D_
height:50vh;_x000D_
}_x000D_
#mmenu_screen--information{_x000D_
background:teal;_x000D_
}_x000D_
#mmenu_screen--book{_x000D_
background:blue;_x000D_
}_x000D_
.mmenu_screen--direktaction{_x000D_
background:red;_x000D_
}
_x000D_
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
<div id="mmenu_screen" class="col-100vh container-fluid main_container">_x000D_
_x000D_
<div class="row col-100vh">_x000D_
<div class="col-xs-6 col-100vh">_x000D_
_x000D_
<div class="col-50vh col-xs-12" id="mmenu_screen--book">_x000D_
BOOKING BUTTON_x000D_
</div>_x000D_
_x000D_
<div class="col-50vh col-xs-12" id="mmenu_screen--information">_x000D_
INFO BUTTON_x000D_
</div>_x000D_
_x000D_
</div>_x000D_
<div class="col-100vh col-xs-6 mmenu_screen--direktaction">_x000D_
DIRECT ACTION BUTTON_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
</div>
_x000D_
You have to update your
scanBasePackages = { "com.exm.java" }
to add the path to your service (after annotating it with @service )
If you have bash completion for make
installed, the completion script will define a function _make_target_extract_script
. This function is meant to create a sed
script which can be used to obtain the targets as a list.
Use it like this:
# Make sure bash completion is enabled
source /etc/bash_completion
# List targets from Makefile
sed -nrf <(_make_target_extract_script --) Makefile
Sounds like a job for the UNIX command split:
split MyBigFile.csv
Just split my 55 GB csv file in 21k chunks in less than 10 minutes.
It's not native to PowerShell though, but comes with, for instance, the git for windows package https://git-scm.com/download/win
The only half-way proper way to do this is
<p>
<span style="float: right">Text on the right</span>
<span style="float: left">Text on the left</span>
</p>
however, this will get you into trouble if the text overflows. If you can, use div
s (block level elements) and give them a fixed width
.
A table (or a number of div
s with the according display: table / table-row / table-cell
properties) would in fact be the safest solution for this - it will be impossible to break, even if you have lots of difficult content.
This answer is not something new. It's similar to what @andy_t has mentioned. But I use the below pattern for two reasons.
Clean implementation with No external npm dependencies
Merge the default config settings with the environment based settings.
Javascript implementation
const settings = {
_default: {
timeout: 100
baseUrl: "http://some.api/",
},
production: {
baseUrl: "http://some.prod.api/",
},
}
// If you are not using ECMAScript 2018 Standard
// https://stackoverflow.com/a/171256/1251350
module.exports = { ...settings._default, ...settings[process.env.NODE_ENV] }
I usually use typescript in my node project. Below is my actual implementation copy-pasted.
Typescript implementation
const settings: { default: ISettings, production: any } = {
_default: {
timeout: 100,
baseUrl: "",
},
production: {
baseUrl: "",
},
}
export interface ISettings {
baseUrl: string
}
export const config = ({ ...settings._default, ...settings[process.env.NODE_ENV] } as ISettings)
For those not willing to use jQuery here is a Vanilla Javascript way of doing the same using classList:
function runOnScroll() {
var element = document.getElementsByTagName('nav') ;
if(document.body.scrollTop >= 50) {
element[0].classList.add('shrink')
} else {
element[0].classList.remove('shrink')
}
console.log(topMenu[0].classList)
};
There might be a nicer way of doing it using toggle, but the above works fine in Chrome
See the RETURNING clause of the INSERT statement. Basically, the INSERT doubles as a query and gives you back the value that was inserted.
To add one day to a date object:
var date = new Date();
// add a day
date.setDate(date.getDate() + 1);
On Linux you can use clock_gettime()
:
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &start); // get initial time-stamp
// ... do stuff ... //
clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end); // get final time-stamp
double t_ns = (double)(end.tv_sec - start.tv_sec) * 1.0e9 +
(double)(end.tv_nsec - start.tv_nsec);
// subtract time-stamps and
// multiply to get elapsed
// time in ns
The easiest way to convert a byte array to a stream is using the MemoryStream
class:
Stream stream = new MemoryStream(byteArray);
import * as utils from './utils.js';
If you do the above, you will be able to use functions in utils.js as
utils.someFunction()
ALTER TABLE dbo.<tablename> ADD CONSTRAINT
<namingconventionconstraint> UNIQUE NONCLUSTERED
(
<columnname>
) ON [PRIMARY]
You can also use bitwise operators to truncate the decimal.
e.g.
var x = 9 / 2;
console.log(x); // 4.5
x = ~~x;
console.log(x); // 4
x = -3.7
console.log(~~x) // -3
console.log(x | 0) // -3
console.log(x << 0) // -3
Bitwise operations are considerably more efficient than the Math functions. The double not bitwise operator also seems to slightly outperform the x | 0
and x << 0
bitwise operations by a negligible amount.
// 952 milliseconds
for (var i = 0; i < 1000000; i++) {
(i * 0.5) | 0;
}
// 1150 milliseconds
for (var i = 0; i < 1000000; i++) {
(i * 0.5) << 0;
}
// 1284 milliseconds
for (var i = 0; i < 1000000; i++) {
Math.trunc(i * 0.5);
}
// 939 milliseconds
for (var i = 0; i < 1000000; i++) {
~~(i * 0.5);
}
Also worth noting is that the bitwise not operator takes precedence over arithmetic operations, so you may need to surround calculations with parentheses to have the intended result:
x = -3.7
console.log(~~x * 2) // -6
console.log(x * 2 | 0) // -7
console.log(x * 2 << 0) // -7
console.log(~~(x * 2)) // -7
console.log(x * 2 | 0) // -7
console.log(x * 2 << 0) // -7
More info about the double bitwise not operator can be found at Double bitwise NOT (~~)
This problem is from VS 2015 silently failing to copy ucrtbased.dll
(debug) and ucrtbase.dll
(release) into the appropriate system folders during the installation of Visual Studio. (Or you did not select "Common Tools for Visual C++ 2015" during installation.) This is why reinstalling may help. However, reinstalling is an extreme measure... this can be fixed without a complete reinstall.
First, if you don't really care about the underlying problem and just want to get this one project working quickly, then here is a fast solution: just copy ucrtbased.dll
from C:\Program Files (x86)\Windows Kits\10\bin\x86\ucrt\ucrtbased.dll
(for 32bit debug) into your application's \debug directory alongside the executable. Then it WILL be found and the error will go away. But, this will only work for this one project.
A more permanent solution is to get ucrtbased.dll
and ucrtbase.dll
into the correct system folders. Now we could start copying these files into \Windows\System32 and \SysWOW64, and it might fix the problem. However, this isn't the best solution. There was a reason this failed in the first place, and forcing the use of specific .dll's this way could cause problems.
The best solution is to open up the control panel --> Programs and Features --> Microsoft Visual Studio 2015 --> Modify. Then uncheck and re-check "Visual C++ --> Common Tools for Visual C++ 2015". Click Next, then and click Update, and after a few minutes, it should be working.
If it still doesn't work, run the modify tool again, uncheck the "Common Tools for Visual C++ 2015", and apply to uninstall that component. Then run again, check it, and apply to reinstall. Make sure anti-virus is disabled, no other tasks are open, etc. and it should work. This is the best way to ensure that these files are copied exactly where they should be.
Note that if the modify tool gives an error code at this point, then the problem is almost certainly specific to your system. Research the error code to find what is going wrong and hopefully, how to fix it.
This is no easy feat.
The following link is to a working demo:
Link Updated according to lanoxx's comment
http://jsfiddle.net/C8Dtf/366/
Just remember to add these:
<script type="text/javascript" charset="utf-8" src="http://datatables.net/release-datatables/media/js/jquery.js"></script>
<script type="text/javascript" charset="utf-8" src="http://datatables.net/release-datatables/media/js/jquery.dataTables.js"></script>
<script type="text/javascript" charset="utf-8" src="http://datatables.net/release-datatables/extras/FixedColumns/media/js/FixedColumns.js"></script>
i don't see any other way of achieving this. Especially not by using css only.
This is a lot to go through. Hope this helps :)
Previously, I faced a similar problem, I needed to play .gif
file in your project. I had two choices:
using PictureBox from WinForms
using a third-party library, such as WPFAnimatedGif from codeplex.com.
Version with PictureBox
did not work for me, and the project could not use external libraries for it. So I made it for myself through Bitmap
with help ImageAnimator
. Because, standard BitmapImage
does not support playback of .gif
files.
Full example:
XAML
<Window x:Class="PlayGifHelp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525" Loaded="MainWindow_Loaded">
<Grid>
<Image x:Name="SampleImage" />
</Grid>
</Window>
Code behind
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
Bitmap _bitmap;
BitmapSource _source;
private BitmapSource GetSource()
{
if (_bitmap == null)
{
string path = Directory.GetCurrentDirectory();
// Check the path to the .gif file
_bitmap = new Bitmap(path + @"\anim.gif");
}
IntPtr handle = IntPtr.Zero;
handle = _bitmap.GetHbitmap();
return Imaging.CreateBitmapSourceFromHBitmap(handle, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
_source = GetSource();
SampleImage.Source = _source;
ImageAnimator.Animate(_bitmap, OnFrameChanged);
}
private void FrameUpdatedCallback()
{
ImageAnimator.UpdateFrames();
if (_source != null)
{
_source.Freeze();
}
_source = GetSource();
SampleImage.Source = _source;
InvalidateVisual();
}
private void OnFrameChanged(object sender, EventArgs e)
{
Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(FrameUpdatedCallback));
}
}
Bitmap
does not support URI directive, so I load .gif
file from the current directory.
Mysql has this handy UPDATE INTO command ;)
edit Looks like they renamed it to REPLACE
REPLACE works exactly like INSERT, except that if an old row in the table has the same value as a new row for a PRIMARY KEY or a UNIQUE index, the old row is deleted before the new row is inserted
Here is another possible solution assuming matrix have one column( you can reshape original Mat to one column Mat via reshape):
Mat matrix= Mat::zeros(20, 1, CV_32FC1);
vector<float> vec;
matrix.col(0).copyTo(vec);
myString += Environment.NewLine;
myString = myString + Environment.NewLine;
Missing ;
after var_dump($row)
Ok, to remove all variables, maybe the prettiest is
$url = strtok($url, '?');
See about strtok
here.
Its the fastest (see below), and handles urls without a '?' properly.
To take a url+querystring and remove just one variable (without using a regex replace, which may be faster in some cases), you might do something like:
function removeqsvar($url, $varname) {
list($urlpart, $qspart) = array_pad(explode('?', $url), 2, '');
parse_str($qspart, $qsvars);
unset($qsvars[$varname]);
$newqs = http_build_query($qsvars);
return $urlpart . '?' . $newqs;
}
A regex replace to remove a single var might look like:
function removeqsvar($url, $varname) {
return preg_replace('/([?&])'.$varname.'=[^&]+(&|$)/','$1',$url);
}
Heres the timings of a few different methods, ensuring timing is reset inbetween runs.
<?php
$number_of_tests = 40000;
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$starttime = $mtime;
for($i = 0; $i < $number_of_tests; $i++){
$str = "http://www.example.com?test=test";
preg_replace('/\\?.*/', '', $str);
}
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$endtime = $mtime;
$totaltime = ($endtime - $starttime);
echo "regexp execution time: ".$totaltime." seconds; ";
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$starttime = $mtime;
for($i = 0; $i < $number_of_tests; $i++){
$str = "http://www.example.com?test=test";
$str = explode('?', $str);
}
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$endtime = $mtime;
$totaltime = ($endtime - $starttime);
echo "explode execution time: ".$totaltime." seconds; ";
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$starttime = $mtime;
for($i = 0; $i < $number_of_tests; $i++){
$str = "http://www.example.com?test=test";
$qPos = strpos($str, "?");
$url_without_query_string = substr($str, 0, $qPos);
}
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$endtime = $mtime;
$totaltime = ($endtime - $starttime);
echo "strpos execution time: ".$totaltime." seconds; ";
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$starttime = $mtime;
for($i = 0; $i < $number_of_tests; $i++){
$str = "http://www.example.com?test=test";
$url_without_query_string = strtok($str, '?');
}
$mtime = microtime();
$mtime = explode(" ",$mtime);
$mtime = $mtime[1] + $mtime[0];
$endtime = $mtime;
$totaltime = ($endtime - $starttime);
echo "tok execution time: ".$totaltime." seconds; ";
shows
regexp execution time: 0.14604902267456 seconds; explode execution time: 0.068033933639526 seconds; strpos execution time: 0.064775943756104 seconds; tok execution time: 0.045819044113159 seconds;
regexp execution time: 0.1408839225769 seconds; explode execution time: 0.06751012802124 seconds; strpos execution time: 0.064877986907959 seconds; tok execution time: 0.047760963439941 seconds;
regexp execution time: 0.14162802696228 seconds; explode execution time: 0.065848112106323 seconds; strpos execution time: 0.064821004867554 seconds; tok execution time: 0.041788101196289 seconds;
regexp execution time: 0.14043688774109 seconds; explode execution time: 0.066350221633911 seconds; strpos execution time: 0.066242933273315 seconds; tok execution time: 0.041517972946167 seconds;
regexp execution time: 0.14228296279907 seconds; explode execution time: 0.06665301322937 seconds; strpos execution time: 0.063700199127197 seconds; tok execution time: 0.041836977005005 seconds;
strtok wins, and is by far the smallest code.
Maybe you can leverage the std::bitset
type available in C++11. It can be used to represent a fixed sequence of N
bits, which can be manipulated by conventional logic.
#include<iostream>
#include<bitset>
class MissileLauncher {
public:
MissileLauncher() {}
void show_bits() const {
std::cout<<m_abc[2]<<", "<<m_abc[1]<<", "<<m_abc[0]<<std::endl;
}
bool toggle_a() {
// toggles (i.e., flips) the value of `a` bit and returns the
// resulting logical value
m_abc[0].flip();
return m_abc[0];
}
bool toggle_c() {
// toggles (i.e., flips) the value of `c` bit and returns the
// resulting logical value
m_abc[2].flip();
return m_abc[2];
}
bool matches(const std::bitset<3>& mask) {
// tests whether all the bits specified in `mask` are turned on in
// this instance's bitfield
return ((m_abc & mask) == mask);
}
private:
std::bitset<3> m_abc;
};
typedef std::bitset<3> Mask;
int main() {
MissileLauncher ml;
// notice that the bitset can be "built" from a string - this masks
// can be made available as constants to test whether certain bits
// or bit combinations are "on" or "off"
Mask has_a("001"); // the zeroth bit
Mask has_b("010"); // the first bit
Mask has_c("100"); // the second bit
Mask has_a_and_c("101"); // zeroth and second bits
Mask has_all_on("111"); // all on!
Mask has_all_off("000"); // all off!
// I can even create masks using standard logic (in this case I use
// the or "|" operator)
Mask has_a_and_b = has_a | has_b;
std::cout<<"This should be 011: "<<has_a_and_b<<std::endl;
// print "true" and "false" instead of "1" and "0"
std::cout<<std::boolalpha;
std::cout<<"Bits, as created"<<std::endl;
ml.show_bits();
std::cout<<"is a turned on? "<<ml.matches(has_a)<<std::endl;
std::cout<<"I will toggle a"<<std::endl;
ml.toggle_a();
std::cout<<"Resulting bits:"<<std::endl;
ml.show_bits();
std::cout<<"is a turned on now? "<<ml.matches(has_a)<<std::endl;
std::cout<<"are both a and c on? "<<ml.matches(has_a_and_c)<<std::endl;
std::cout<<"Toggle c"<<std::endl;
ml.toggle_c();
std::cout<<"Resulting bits:"<<std::endl;
ml.show_bits();
std::cout<<"are both a and c on now? "<<ml.matches(has_a_and_c)<<std::endl;
std::cout<<"but, are all bits on? "<<ml.matches(has_all_on)<<std::endl;
return 0;
}
Compiling using gcc 4.7.2
g++ example.cpp -std=c++11
I get:
This should be 011: 011
Bits, as created
false, false, false
is a turned on? false
I will toggle a
Resulting bits:
false, false, true
is a turned on now? true
are both a and c on? false
Toggle c
Resulting bits:
true, false, true
are both a and c on now? true
but, are all bits on? false
ASP.NET spawns and kills worker processes all the time as needed. Your thread may just be getting shut down by ASP.NET.
Old Answer:
Known issue: PRB: ThreadAbortException Occurs If You Use Response.End, Response.Redirect, or Server.Transfer
Response.Redirect ("bla.aspx", false);
or
try
{
Response.Redirect("bla.aspx");
}
catch (ThreadAbortException ex)
{
}
The WSDL is a kind of contract between API provider and the client it's describe the web service : the public function , optional/required field ...
But The soap message is a data transferred between client and provider (payload)
Not true for the OP, but this error can be caused by using single quotation marks ('
) instead of double ("
) for strings.
The JSON spec requires double quotation marks for strings.
E.g:
JSON.parse(`{"myparam": 'myString'}`)
gives the error, whereas
JSON.parse(`{"myparam": "myString"}`)
does not. Note the quotation marks around myString
.
Building on a previous answer by @user1172173 that addressed SQL Injection vulnerabilities, see below:
CREATE PROCEDURE [dbo].[spQ_SomeColumnByCustomerId](
@CustomerId int,
@SchemaName varchar(20),
@TableName nvarchar(200)) AS
SET Nocount ON
DECLARE @SQLQuery AS NVARCHAR(500)
DECLARE @ParameterDefinition AS NVARCHAR(100)
DECLARE @Table_ObjectId int;
DECLARE @Schema_ObjectId int;
DECLARE @Schema_Table_SecuredFromSqlInjection NVARCHAR(125)
SET @Table_ObjectId = OBJECT_ID(@TableName)
SET @Schema_ObjectId = SCHEMA_ID(@SchemaName)
SET @Schema_Table_SecuredFromSqlInjection = SCHEMA_NAME(@Schema_ObjectId) + '.' + OBJECT_NAME(@Table_ObjectId)
SET @SQLQuery = N'SELECT TOP 1 ' + @Schema_Table_SecuredFromSqlInjection + '.SomeColumn
FROM dbo.Customer
INNER JOIN ' + @Schema_Table_SecuredFromSqlInjection + '
ON dbo.Customer.Customerid = ' + @Schema_Table_SecuredFromSqlInjection + '.CustomerId
WHERE dbo.Customer.CustomerID = @CustomerIdParam
ORDER BY ' + @Schema_Table_SecuredFromSqlInjection + '.SomeColumn DESC'
SET @ParameterDefinition = N'@CustomerIdParam INT'
EXECUTE sp_executesql @SQLQuery, @ParameterDefinition, @CustomerIdParam = @CustomerId; RETURN
There is an open source project called auto-py-to-exe on GitHub. Actually it also just uses PyInstaller internally but since it is has a simple GUI that controls PyInstaller it may be a comfortable alternative. It can also output a standalone file in contrast to other solutions. They also provide a video showing how to set it up.
GUI:
Output:
If the format of the id's in the two table varies then you want to join them, as such you can select to use an id from one-main table, say if you have table_customes
and table_orders
, and tha id for orders is like "101","102"..."110", just use one for customers
select customers.id, name, amount, date from customers.orders;
It should be Ctrl + J.
None of the above helped me.
After a little research I found that as of M50 (April 2016) - Chrome now requires a secure origin (such as HTTPS) for Geolocation.
Deprecated Features on Insecure Origins
The host "localhost" is special b/c its "potentially secure". You may not see errors during development if you are deploying to your development machine.
Don't use a reg-ex.
Apparently the following is a reg-ex that correctly validates most e-mails addresses that conform to RFC 2822, (and will still fail on things like "[email protected]", as will org.apache.commons.validator.routines.EmailValidator)
(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\])
Possibly the easiest way to validate an e-mail to just send a confirmation e-mail to the address provided and it it bounces then it's not valid.
If you want to perform some basic checks you could just check that it's in the form *@*
If you have some business logic specific validation then you could perform that using a regex, e.g. must be a gmail.com account or something.
Seems like answered here: https://public-inbox.org/git/[email protected]/
So in a similar way, running
$ git diff --cc $M $M^1 $M^2 $(git merge-base $M^1 $M^2)
should show a combined patch that explains the state at $M relative to the states recorded in its parents and the merge base.
Based on the previous answers and personnal experience, here is the code I use to monitor CPU use. The code of this class is written in pure Java.
import java.io.IOException;
import java.io.RandomAccessFile;
/**
* Utilities available only on Linux Operating System.
*
* <p>
* A typical use is to assign a thread to CPU monitoring:
* </p>
*
* <pre>
* @Override
* public void run() {
* while (CpuUtil.monitorCpu) {
*
* LinuxUtils linuxUtils = new LinuxUtils();
*
* int pid = android.os.Process.myPid();
* String cpuStat1 = linuxUtils.readSystemStat();
* String pidStat1 = linuxUtils.readProcessStat(pid);
*
* try {
* Thread.sleep(CPU_WINDOW);
* } catch (Exception e) {
* }
*
* String cpuStat2 = linuxUtils.readSystemStat();
* String pidStat2 = linuxUtils.readProcessStat(pid);
*
* float cpu = linuxUtils.getSystemCpuUsage(cpuStat1, cpuStat2);
* if (cpu >= 0.0f) {
* _printLine(mOutput, "total", Float.toString(cpu));
* }
*
* String[] toks = cpuStat1.split(" ");
* long cpu1 = linuxUtils.getSystemUptime(toks);
*
* toks = cpuStat2.split(" ");
* long cpu2 = linuxUtils.getSystemUptime(toks);
*
* cpu = linuxUtils.getProcessCpuUsage(pidStat1, pidStat2, cpu2 - cpu1);
* if (cpu >= 0.0f) {
* _printLine(mOutput, "" + pid, Float.toString(cpu));
* }
*
* try {
* synchronized (this) {
* wait(CPU_REFRESH_RATE);
* }
* } catch (InterruptedException e) {
* e.printStackTrace();
* return;
* }
* }
*
* Log.i("THREAD CPU", "Finishing");
* }
* </pre>
*/
public final class LinuxUtils {
// Warning: there appears to be an issue with the column index with android linux:
// it was observed that on most present devices there are actually
// two spaces between the 'cpu' of the first column and the value of
// the next column with data. The thing is the index of the idle
// column should have been 4 and the first column with data should have index 1.
// The indexes defined below are coping with the double space situation.
// If your file contains only one space then use index 1 and 4 instead of 2 and 5.
// A better way to deal with this problem may be to use a split method
// not preserving blanks or compute an offset and add it to the indexes 1 and 4.
private static final int FIRST_SYS_CPU_COLUMN_INDEX = 2;
private static final int IDLE_SYS_CPU_COLUMN_INDEX = 5;
/** Return the first line of /proc/stat or null if failed. */
public String readSystemStat() {
RandomAccessFile reader = null;
String load = null;
try {
reader = new RandomAccessFile("/proc/stat", "r");
load = reader.readLine();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
Streams.close(reader);
}
return load;
}
/**
* Compute and return the total CPU usage, in percent.
*
* @param start
* first content of /proc/stat. Not null.
* @param end
* second content of /proc/stat. Not null.
* @return 12.7 for a CPU usage of 12.7% or -1 if the value is not
* available.
* @see {@link #readSystemStat()}
*/
public float getSystemCpuUsage(String start, String end) {
String[] stat = start.split("\\s");
long idle1 = getSystemIdleTime(stat);
long up1 = getSystemUptime(stat);
stat = end.split("\\s");
long idle2 = getSystemIdleTime(stat);
long up2 = getSystemUptime(stat);
// don't know how it is possible but we should care about zero and
// negative values.
float cpu = -1f;
if (idle1 >= 0 && up1 >= 0 && idle2 >= 0 && up2 >= 0) {
if ((up2 + idle2) > (up1 + idle1) && up2 >= up1) {
cpu = (up2 - up1) / (float) ((up2 + idle2) - (up1 + idle1));
cpu *= 100.0f;
}
}
return cpu;
}
/**
* Return the sum of uptimes read from /proc/stat.
*
* @param stat
* see {@link #readSystemStat()}
*/
public long getSystemUptime(String[] stat) {
/*
* (from man/5/proc) /proc/stat kernel/system statistics. Varies with
* architecture. Common entries include: cpu 3357 0 4313 1362393
*
* The amount of time, measured in units of USER_HZ (1/100ths of a
* second on most architectures, use sysconf(_SC_CLK_TCK) to obtain the
* right value), that the system spent in user mode, user mode with low
* priority (nice), system mode, and the idle task, respectively. The
* last value should be USER_HZ times the second entry in the uptime
* pseudo-file.
*
* In Linux 2.6 this line includes three additional columns: iowait -
* time waiting for I/O to complete (since 2.5.41); irq - time servicing
* interrupts (since 2.6.0-test4); softirq - time servicing softirqs
* (since 2.6.0-test4).
*
* Since Linux 2.6.11, there is an eighth column, steal - stolen time,
* which is the time spent in other operating systems when running in a
* virtualized environment
*
* Since Linux 2.6.24, there is a ninth column, guest, which is the time
* spent running a virtual CPU for guest operating systems under the
* control of the Linux kernel.
*/
// with the following algorithm, we should cope with all versions and
// probably new ones.
long l = 0L;
for (int i = FIRST_SYS_CPU_COLUMN_INDEX; i < stat.length; i++) {
if (i != IDLE_SYS_CPU_COLUMN_INDEX ) { // bypass any idle mode. There is currently only one.
try {
l += Long.parseLong(stat[i]);
} catch (NumberFormatException ex) {
ex.printStackTrace();
return -1L;
}
}
}
return l;
}
/**
* Return the sum of idle times read from /proc/stat.
*
* @param stat
* see {@link #readSystemStat()}
*/
public long getSystemIdleTime(String[] stat) {
try {
return Long.parseLong(stat[IDLE_SYS_CPU_COLUMN_INDEX]);
} catch (NumberFormatException ex) {
ex.printStackTrace();
}
return -1L;
}
/** Return the first line of /proc/pid/stat or null if failed. */
public String readProcessStat(int pid) {
RandomAccessFile reader = null;
String line = null;
try {
reader = new RandomAccessFile("/proc/" + pid + "/stat", "r");
line = reader.readLine();
} catch (IOException ex) {
ex.printStackTrace();
} finally {
Streams.close(reader);
}
return line;
}
/**
* Compute and return the CPU usage for a process, in percent.
*
* <p>
* The parameters {@code totalCpuTime} is to be the one for the same period
* of time delimited by {@code statStart} and {@code statEnd}.
* </p>
*
* @param start
* first content of /proc/pid/stat. Not null.
* @param end
* second content of /proc/pid/stat. Not null.
* @return the CPU use in percent or -1f if the stats are inverted or on
* error
* @param uptime
* sum of user and kernel times for the entire system for the
* same period of time.
* @return 12.7 for a cpu usage of 12.7% or -1 if the value is not available
* or an error occurred.
* @see {@link #readProcessStat(int)}
*/
public float getProcessCpuUsage(String start, String end, long uptime) {
String[] stat = start.split("\\s");
long up1 = getProcessUptime(stat);
stat = end.split("\\s");
long up2 = getProcessUptime(stat);
float ret = -1f;
if (up1 >= 0 && up2 >= up1 && uptime > 0.) {
ret = 100.f * (up2 - up1) / (float) uptime;
}
return ret;
}
/**
* Decode the fields of the file {@code /proc/pid/stat} and return (utime +
* stime)
*
* @param stat
* obtained with {@link #readProcessStat(int)}
*/
public long getProcessUptime(String[] stat) {
return Long.parseLong(stat[14]) + Long.parseLong(stat[15]);
}
/**
* Decode the fields of the file {@code /proc/pid/stat} and return (cutime +
* cstime)
*
* @param stat
* obtained with {@link #readProcessStat(int)}
*/
public long getProcessIdleTime(String[] stat) {
return Long.parseLong(stat[16]) + Long.parseLong(stat[17]);
}
/**
* Return the total CPU usage, in percent.
* <p>
* The call is blocking for the time specified by elapse.
* </p>
*
* @param elapse
* the time in milliseconds between reads.
* @return 12.7 for a CPU usage of 12.7% or -1 if the value is not
* available.
*/
public float syncGetSystemCpuUsage(long elapse) {
String stat1 = readSystemStat();
if (stat1 == null) {
return -1.f;
}
try {
Thread.sleep(elapse);
} catch (Exception e) {
}
String stat2 = readSystemStat();
if (stat2 == null) {
return -1.f;
}
return getSystemCpuUsage(stat1, stat2);
}
/**
* Return the CPU usage of a process, in percent.
* <p>
* The call is blocking for the time specified by elapse.
* </p>
*
* @param pid
* @param elapse
* the time in milliseconds between reads.
* @return 6.32 for a CPU usage of 6.32% or -1 if the value is not
* available.
*/
public float syncGetProcessCpuUsage(int pid, long elapse) {
String pidStat1 = readProcessStat(pid);
String totalStat1 = readSystemStat();
if (pidStat1 == null || totalStat1 == null) {
return -1.f;
}
try {
Thread.sleep(elapse);
} catch (Exception e) {
e.printStackTrace();
return -1.f;
}
String pidStat2 = readProcessStat(pid);
String totalStat2 = readSystemStat();
if (pidStat2 == null || totalStat2 == null) {
return -1.f;
}
String[] toks = totalStat1.split("\\s");
long cpu1 = getSystemUptime(toks);
toks = totalStat2.split("\\s");
long cpu2 = getSystemUptime(toks);
return getProcessCpuUsage(pidStat1, pidStat2, cpu2 - cpu1);
}
}
There are several ways of exploiting this class. You can call either syncGetSystemCpuUsage
or syncGetProcessCpuUsage
but each is blocking the calling thread. Since a common issue is to monitor the total CPU usage and the CPU use of the current process at the same time, I have designed a class computing both of them. That class contains a dedicated thread. The output management is implementation specific and you need to code your own.
The class can be customized by a few means. The constant CPU_WINDOW
defines the depth of a read, i.e. the number of milliseconds between readings and computing of the corresponding CPU load. CPU_REFRESH_RATE
is the time between each CPU load measurement. Do not set CPU_REFRESH_RATE
to 0 because it will suspend the thread after the first read.
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.OutputStream;
import android.app.Application;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Log;
import my.app.LinuxUtils;
import my.app.Streams;
import my.app.TestReport;
import my.app.Utils;
public final class CpuUtil {
private static final int CPU_WINDOW = 1000;
private static final int CPU_REFRESH_RATE = 100; // Warning: anything but > 0
private static HandlerThread handlerThread;
private static TestReport output;
static {
output = new TestReport();
output.setDateFormat(Utils.getDateFormat(Utils.DATE_FORMAT_ENGLISH));
}
private static boolean monitorCpu;
/**
* Construct the class singleton. This method should be called in
* {@link Application#onCreate()}
*
* @param dir
* the parent directory
* @param append
* mode
*/
public static void setOutput(File dir, boolean append) {
try {
File file = new File(dir, "cpu.txt");
output.setOutputStream(new FileOutputStream(file, append));
if (!append) {
output.println(file.getAbsolutePath());
output.newLine(1);
// print header
_printLine(output, "Process", "CPU%");
output.flush();
}
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
/** Start CPU monitoring */
public static boolean startCpuMonitoring() {
CpuUtil.monitorCpu = true;
handlerThread = new HandlerThread("CPU monitoring"); //$NON-NLS-1$
handlerThread.start();
Handler handler = new Handler(handlerThread.getLooper());
handler.post(new Runnable() {
@Override
public void run() {
while (CpuUtil.monitorCpu) {
LinuxUtils linuxUtils = new LinuxUtils();
int pid = android.os.Process.myPid();
String cpuStat1 = linuxUtils.readSystemStat();
String pidStat1 = linuxUtils.readProcessStat(pid);
try {
Thread.sleep(CPU_WINDOW);
} catch (Exception e) {
}
String cpuStat2 = linuxUtils.readSystemStat();
String pidStat2 = linuxUtils.readProcessStat(pid);
float cpu = linuxUtils
.getSystemCpuUsage(cpuStat1, cpuStat2);
if (cpu >= 0.0f) {
_printLine(output, "total", Float.toString(cpu));
}
String[] toks = cpuStat1.split(" ");
long cpu1 = linuxUtils.getSystemUptime(toks);
toks = cpuStat2.split(" ");
long cpu2 = linuxUtils.getSystemUptime(toks);
cpu = linuxUtils.getProcessCpuUsage(pidStat1, pidStat2,
cpu2 - cpu1);
if (cpu >= 0.0f) {
_printLine(output, "" + pid, Float.toString(cpu));
}
try {
synchronized (this) {
wait(CPU_REFRESH_RATE);
}
} catch (InterruptedException e) {
e.printStackTrace();
return;
}
}
Log.i("THREAD CPU", "Finishing");
}
});
return CpuUtil.monitorCpu;
}
/** Stop CPU monitoring */
public static void stopCpuMonitoring() {
if (handlerThread != null) {
monitorCpu = false;
handlerThread.quit();
handlerThread = null;
}
}
/** Dispose of the object and release the resources allocated for it */
public void dispose() {
monitorCpu = false;
if (output != null) {
OutputStream os = output.getOutputStream();
if (os != null) {
Streams.close(os);
output.setOutputStream(null);
}
output = null;
}
}
private static void _printLine(TestReport output, String process, String cpu) {
output.stampln(process + ";" + cpu);
}
}
I'm not sure how I ended up on this post but since most of the answers are using floats, absolute positioning, and other options which aren't optimal now a days, I figured I'd give a new answer that's more up to date on it's standards (float isn't really kosher anymore).
.parent {_x000D_
display: flex;_x000D_
flex-direction:row;_x000D_
}_x000D_
_x000D_
.column {_x000D_
flex: 1 1 0px;_x000D_
border: 1px solid black;_x000D_
}
_x000D_
<div class="parent">_x000D_
<div class="column">Column 1</div>_x000D_
<div class="column">Column 2<br>Column 2<br>Column 2<br>Column 2<br></div>_x000D_
<div class="column">Column 3</div>_x000D_
</div>
_x000D_
All procedure at once. Based on @Till Schäfer answer.
In KB...
jstat -gc $(ps axf | egrep -i "*/bin/java *" | egrep -v grep | awk '{print $1}') | tail -n 1 | awk '{split($0,a," "); sum=(a[3]+a[4]+a[6]+a[8]+a[10]); printf("%.2f KB\n",sum)}'
In MB...
jstat -gc $(ps axf | egrep -i "*/bin/java *" | egrep -v grep | awk '{print $1}') | tail -n 1 | awk '{split($0,a," "); sum=(a[3]+a[4]+a[6]+a[8]+a[10])/1024; printf("%.2f MB\n",sum)}'
"Awk sum" reference:
a[1] - S0C
a[2] - S1C
a[3] - S0U
a[4] - S1U
a[5] - EC
a[6] - EU
a[7] - OC
a[8] - OU
a[9] - PC
a[10] - PU
a[11] - YGC
a[12] - YGCT
a[13] - FGC
a[14] - FGCT
a[15] - GCT
Used for "Awk sum":
a[3] -- (S0U) Survivor space 0 utilization (KB).
a[4] -- (S1U) Survivor space 1 utilization (KB).
a[6] -- (EU) Eden space utilization (KB).
a[8] -- (OU) Old space utilization (KB).
a[10] - (PU) Permanent space utilization (KB).
[Ref.: https://docs.oracle.com/javase/7/docs/technotes/tools/share/jstat.html ]
Thanks!
NOTE: Works to OpenJDK!
FURTHER QUESTION: Wrong information?
If you check memory usage with the ps
command, you will see that the java process consumes much more...
ps -eo size,pid,user,command --sort -size | egrep -i "*/bin/java *" | egrep -v grep | awk '{ hr=$1/1024 ; printf("%.2f MB ",hr) } { for ( x=4 ; x<=NF ; x++ ) { printf("%s ",$x) } print "" }' | cut -d "" -f2 | cut -d "-" -f1
UPDATE (2021-02-16):
According to the reference below (and @Till Schäfer comment) "ps can show total reserved memory from OS" (adapted) and "jstat can show used space of heap and stack" (adapted). So, we see a difference between what is pointed out by the ps
command and the jstat
command.
According to our understanding, the most "realistic" information would be the ps
output since we will have an effective response of how much of the system's memory is compromised. The command jstat
serves for a more detailed analysis regarding the java performance in the consumption of reserved memory from OS.
[Ref.: http://www.openkb.info/2014/06/how-to-check-java-memory-usage.html ]
Here is a very quick and simple solution:
self.navigationController.hidesBarsOnTap = YES;
This will work on single tap instead of double tap. Also it will change the behavior for the navigation controller even after pushing or popping the current view controller.
You can always modify this behavior in your controller within the viewWillAppear: and viewWillDisappear: actions if you would like to set the behavior only for a single view controller.
Here is the documentation:
RequireJS implements the AMD API (source).
CommonJS is a way of defining modules with the help of an exports
object, that defines the module contents. Simply put, a CommonJS implementation might work like this:
// someModule.js
exports.doSomething = function() { return "foo"; };
//otherModule.js
var someModule = require('someModule'); // in the vein of node
exports.doSomethingElse = function() { return someModule.doSomething() + "bar"; };
Basically, CommonJS specifies that you need to have a require()
function to fetch dependencies, an exports
variable to export module contents and a module identifier (which describes the location of the module in question in relation to this module) that is used to require the dependencies (source). CommonJS has various implementations, including Node.js, which you mentioned.
CommonJS was not particularly designed with browsers in mind, so it doesn't fit in the browser environment very well (I really have no source for this--it just says so everywhere, including the RequireJS site.) Apparently, this has something to do with asynchronous loading, etc.
On the other hand, RequireJS implements AMD, which is designed to suit the browser environment (source). Apparently, AMD started as a spinoff of the CommonJS Transport format and evolved into its own module definition API. Hence the similarities between the two. The new feature in AMD is the define()
function that allows the module to declare its dependencies before being loaded. For example, the definition could be:
define('module/id/string', ['module', 'dependency', 'array'],
function(module, factory function) {
return ModuleContents;
});
So, CommonJS and AMD are JavaScript module definition APIs that have different implementations, but both come from the same origins.
To confuse you even more, RequireJS, while being an AMD implementation, offers a CommonJS wrapper so CommonJS modules can almost directly be imported for use with RequireJS.
define(function(require, exports, module) {
var someModule = require('someModule'); // in the vein of node
exports.doSomethingElse = function() { return someModule.doSomething() + "bar"; };
});
I hope this helps to clarify things!
Changing between timezones
import pytz
from datetime import datetime
other_tz = pytz.timezone('Europe/Madrid')
# From random aware datetime...
aware_datetime = datetime.utcnow().astimezone(other_tz)
>> 2020-05-21 08:28:26.984948+02:00
# 1. Change aware datetime to UTC and remove tzinfo to obtain an unaware datetime
unaware_datetime = aware_datetime.astimezone(pytz.UTC).replace(tzinfo=None)
>> 2020-05-21 06:28:26.984948
# 2. Set tzinfo to UTC directly on an unaware datetime to obtain an utc aware datetime
aware_datetime_utc = unaware_datetime.replace(tzinfo=pytz.UTC)
>> 2020-05-21 06:28:26.984948+00:00
# 3. Convert the aware utc datetime into another timezone
reconverted_aware_datetime = aware_datetime_utc.astimezone(other_tz)
>> 2020-05-21 08:28:26.984948+02:00
# Initial Aware Datetime and Reconverted Aware Datetime are equal
print(aware_datetime1 == aware_datetime2)
>> True
Just to give an option, writing a dictionary to csv file could also be done with the pandas package. With the given example it could be something like this:
mydict = {'key1': 'a', 'key2': 'b', 'key3': 'c'}
import pandas as pd
(pd.DataFrame.from_dict(data=mydict, orient='index')
.to_csv('dict_file.csv', header=False))
The main thing to take into account is to set the 'orient' parameter to 'index' inside the from_dict method. This lets you choose if you want to write each dictionary key in a new row.
Additionaly, inside the to_csv method the header parameter is set to False just to have only the dictionary elements without annoying rows. You can always set column and index names inside the to_csv method.
Your output would look like this:
key1,a
key2,b
key3,c
If instead you want the keys to be the column's names, just use the default 'orient' parameter that is 'columns', as you could check in the documentation links.
This will be possible with setiosflags(ios::showpoint).
You can use jQuery toggle
to show and hide the div. The script will be like this
<script type="text/javascript">
jQuery(function(){
jQuery("#music").click(function () {
jQuery("#musicinfo").toggle("slow");
});
});
</script>
As a general rule, you can use Database_Default collation so you don't need to figure out which one to use. However, I strongly suggest reading Simons Liew's excellent article Understanding the COLLATE DATABASE_DEFAULT clause in SQL Server
SELECT *
FROM [FAEB].[dbo].[ExportaComisiones] AS f
JOIN [zCredifiel].[dbo].[optPerson] AS p
ON (p.vTreasuryId = f.RFC) COLLATE Database_Default
I would suggest to use ASIHTTPRequest
ASIHTTPRequest is an easy to use wrapper around the CFNetwork API that makes some of the more tedious aspects of communicating with web servers easier. It is written in Objective-C and works in both Mac OS X and iPhone applications.
It is suitable performing basic HTTP requests and interacting with REST-based services (GET / POST / PUT / DELETE). The included ASIFormDataRequest subclass makes it easy to submit POST data and files using multipart/form-data.
Please note, that the original author discontinued with this project. See the followring post for reasons and alternatives: http://allseeing-i.com/%5Brequest_release%5D;
Personally I am a big fan of AFNetworking
If you want to insert HTML code inside existing page's tag use Jnerator. This tool was created specially for this goal.
Instead of writing next code
var htmlCode = '<ul class=\'menu-countries\'><li
class=\'item\'><img src=\'au.png\'></img><span>Australia </span></li><li
class=\'item\'><img src=\'br.png\'> </img><span>Brazil</span></li><li
class=\'item\'> <img src=\'ca.png\'></img><span>Canada</span></li></ul>';
var element = document.getElementById('myTag');
element.innerHTML = htmlCode;
You can write more understandable structure
var jtag = $j.ul({
class: 'menu-countries',
child: [
$j.li({ class: 'item', child: [
$j.img({ src: 'au.png' }),
$j.span({ child: 'Australia' })
]}),
$j.li({ class: 'item', child: [
$j.img({ src: 'br.png' }),
$j.span({ child: 'Brazil' })
]}),
$j.li({ class: 'item', child: [
$j.img({ src: 'ca.png' }),
$j.span({ child: 'Canada' })
]})
]
});
var htmlCode = jtag.html();
var element = document.getElementById('myTag');
element.innerHTML = htmlCode;
0 [main] us 0 init_cheap: VirtualAlloc pointer is null, Win32 error 487
AllocationBase 0x0, BaseAddress 0x68570000, RegionSize 0x2A0000, State 0x10000
PortableGit\bin\bash.exe: *** Couldn't reserve space for cygwin's heap, Win32 error 0
This symptom by itself has nothing to do with image bases of executables, corrupted Cygwin's shared memory sections, conflicting versions of DLLs etc.
It's Cygwin code failing to allocate a ~5 MB large chunk of memory for its heap at this fixed address 0x68570000, while only a hole ~2.5 MB large was apparently available there. The relevant code can be seen in msysgit source.
There can be many reasons. In my case it was some other modules loaded at a conflicting address:
The last address would be around 0x68570000 + 5 MB = 0x68C50000, but there are these WOW64-related DLLs loaded from 0x68810000 upwards, which block the allocation.
Whenever there is some shared DLL, Windows in general tries to load it at the same virtual address in all processes to save some relocation processing. It's just a matter of bad luck that these system components got somehow loaded at a conflicting address this time.
Because Git is a rich suite consisting of some low level commands and a lot of helpful utilities, and mostly developed on Unix-like systems. In order to be able to build it and run it without massive rewriting, it need at least a partial Unix-like environment.
To accomplish that, people have invented MinGW and MSYS - a minimal set of build tools to develop programs on Windows in an Unix-like fashion. MSYS also contains a shared library, this msys-1.0.dll
, which helps with some of the compatibility issues between the two platforms during runtime. And many parts of that have been taken from Cygwin, because someone already had to solve the same problems there.
So it's not Cygwin, it's MinGW's runtime DLL what's behaving weird here.
In Cygwin, this code has actually changed a lot since what's in MSYS 1.0 - the last commit message for that file says "Import Cygwin 1.3.4", which is from 2001!
Both current Cygwin and the new version of MSYS - MSYS2 - already have different logic in place, which is hopefully more robust. It's only old versions of Git for Windows which have been still built using the old broken MSYS system.
PATH
can sometimes work because there might be different versions of msys-1.0.dll
in different versions of Git or other MSYS-based applications, which perhaps use different address, different size of this heap etc.msys-1.0.dll
might be a waste of time, because 1) being a DLL, it already has relocation information and 2) "in any version of Windows OS there is no guarantee that a (...) DLL will always load at same address space" anyway (source). The only way this can help is if the msys-1.0.dll
itself loads at the conflicting address it's then trying to use. Apparently that's the case sometimes, as this is what the Git for Windows guys are doing automatically on 32-bit systems.msys-1.0.dll
binary to use a different value for _cygheap_start
and that resolved the problem immediately.To find a div
of a certain class that contains a span
at any depth containing certain text, try:
//div[contains(@class, 'measure-tab') and contains(.//span, 'someText')]
That said, this solution looks extremely fragile. If the table happens to contain a span
with the text you're looking for, the div
containing the table will be matched, too. I'd suggest to find a more robust way of filtering the elements. For example by using IDs or top-level document structure.
This is a known bug at MySQL.
As you can see this has been a known issue since 2008 and they have not fixed it yet!!!
WORK AROUND
You first need to create the database to import. It doesn't need any tables. Then you can import your database.
first start your MySQL command line (apply username and password if you need to)
C:\>mysql -u user -p
Create your database and exit
mysql> DROP DATABASE database;
mysql> CREATE DATABASE database;
mysql> Exit
Import your selected database from the dump file
C:\>mysql -u user -p -h localhost -D database -o < dumpfile.sql
You can replace localhost with an IP or domain for any MySQL server you want to import to. The reason for the DROP command in the mysql prompt is to be sure we start with an empty and clean database.
There are few named constructors in GridView
for different scenarios,
Constructors
GridView
GridView.builder
GridView.count
GridView.custom
GridView.extent
Below is a example of GridView
constructor:
import 'package:flutter/material.dart';
void main() => runApp(
MaterialApp(
home: ExampleGrid(),
),
);
class ExampleGrid extends StatelessWidget {
List<String> images = [
"https://uae.microless.com/cdn/no_image.jpg",
"https://images-na.ssl-images-amazon.com/images/I/81aF3Ob-2KL._UX679_.jpg",
"https://www.boostmobile.com/content/dam/boostmobile/en/products/phones/apple/iphone-7/silver/device-front.png.transform/pdpCarousel/image.jpg",
"https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcSgUgs8_kmuhScsx-J01d8fA1mhlCR5-1jyvMYxqCB8h3LCqcgl9Q",
"https://ae01.alicdn.com/kf/HTB11tA5aiAKL1JjSZFoq6ygCFXaw/Unlocked-Samsung-GALAXY-S2-I9100-Mobile-Phone-Android-Wi-Fi-GPS-8-0MP-camera-Core-4.jpg_640x640.jpg",
"https://media.ed.edmunds-media.com/gmc/sierra-3500hd/2018/td/2018_gmc_sierra-3500hd_f34_td_411183_1600.jpg",
"https://hips.hearstapps.com/amv-prod-cad-assets.s3.amazonaws.com/images/16q1/665019/2016-chevrolet-silverado-2500hd-high-country-diesel-test-review-car-and-driver-photo-665520-s-original.jpg",
"https://www.galeanasvandykedodge.net/assets/stock/ColorMatched_01/White/640/cc_2018DOV170002_01_640/cc_2018DOV170002_01_640_PSC.jpg",
"https://media.onthemarket.com/properties/6191869/797156548/composite.jpg",
"https://media.onthemarket.com/properties/6191840/797152761/composite.jpg",
];
@override
Widget build(BuildContext context) {
return Scaffold(
body: GridView(
physics: BouncingScrollPhysics(), // if you want IOS bouncing effect, otherwise remove this line
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),//change the number as you want
children: images.map((url) {
return Card(child: Image.network(url));
}).toList(),
),
);
}
}
If you want your GridView items to be dynamic according to the content, you can few lines to do that but the simplest way to use StaggeredGridView
package. I have provided an answer with example here.
Below is an example for a GridView.count
:
import 'package:flutter/material.dart';
void main() => runApp(
MaterialApp(
home: ExampleGrid(),
),
);
class ExampleGrid extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: GridView.count(
crossAxisCount: 4,
children: List.generate(40, (index) {
return Card(
child: Image.network("https://robohash.org/$index"),
); //robohash.org api provide you different images for any number you are giving
}),
),
);
}
}
Screenshot for above snippet:
Example for a SliverGridView
:
import 'package:flutter/material.dart';
void main() => runApp(
MaterialApp(
home: ExampleGrid(),
),
);
class ExampleGrid extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
body: CustomScrollView(
primary: false,
slivers: <Widget>[
SliverPadding(
padding: const EdgeInsets.all(20.0),
sliver: SliverGrid.count(
crossAxisSpacing: 10.0,
crossAxisCount: 2,
children: List.generate(20, (index) {
return Card(child: Image.network("https://robohash.org/$index"));
}),
),
),
],
)
);
}
}
This is the syntax you need:
CASE WHEN countries LIKE '%'+@selCountry+'%' THEN 'national' ELSE 'regional' END
Although, as per your original problem, I'd solve it differently, splitting the content of @selcountry int a table form and joining to it.
Try this code my friend...
#include<stdio.h>
int main(){
char *s1, *s2;
char str[10];
printf("type a string: ");
scanf("%s", str);
s1 = &str[0];
s2 = &str[2];
printf("%c\n", *s1); //use %c instead of %s and *s1 which is the content of position 1
printf("%c\n", *s2); //use %c instead of %s and *s3 which is the content of position 1
return 0;
}
You can call $setUnion
on a single array, which also filters dupes:
{ $project: {Package: 1, deps: {'$setUnion': '$deps.Package'}}}
SELECT left(NAME, charindex('_', NAME) - 1)
FROM tempdb..sysobjects
WHERE NAME LIKE '#%'
AND NAME NOT LIKE '##%'
AND upper(xtype) = 'U'
AND NOT object_id('tempdb..' + NAME) IS NULL
you can remove the ## line if you want to include global temp tables.
Indeed 465 works and the exception that you're getting is may be due to the un open SMTP port 25. By default the port number is 25. Yet you can configure it using the mail agent that is available as open source - Mercury
For simplicity, just use the following configuration and you'll be fine.
// Setup your mail server
props.put("mail.smtp.host", SMTP_HOST);
props.put("mail.smtp.user",FROM_NAME);
props.put("mail.smtp.ssl.enable", "true");
props.put("mail.smtp.port", "25");
props.put("mail.debug", "true");
props.put("mail.smtp.auth", "true");
props.put("mail.smtp.starttls.enable","true");
props.put("mail.smtp.EnableSSL.enable","true");
props.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
props.setProperty("mail.smtp.socketFactory.fallback", "false");
props.setProperty("mail.smtp.port", "465");
props.setProperty("mail.smtp.socketFactory.port", "465");
For even more: check out the complete working example from scratch here
If you ask me. try this one
import urllib2
resp = urllib2.urlopen('http://hiscore.runescape.com/index_lite.ws?player=zezima')
and read the normal way ie
page = resp.read()
Good luck though
Just hit the same problem... For some reason, the freezepanes command just caused crosshairs to appear in the centre of the screen. It turns oout I had switched ScreenUpdating off! Solved with the following code:
Application.ScreenUpdating = True
Cells(2, 1).Select
ActiveWindow.FreezePanes = True
Now it works fine.
private readonly UserManager<AppUser> _userManager;
public AccountsController(UserManager<AppUser> userManager)
{
_userManager = userManager;
}
[Authorize(Policy = "ApiUser")]
[HttpGet("api/accounts/GetProfile", Name = "GetProfile")]
public async Task<IActionResult> GetProfile()
{
var userId = ((ClaimsIdentity)User.Identity).FindFirst("Id").Value;
var user = await _userManager.FindByIdAsync(userId);
ProfileUpdateModel model = new ProfileUpdateModel();
model.Email = user.Email;
model.FirstName = user.FirstName;
model.LastName = user.LastName;
model.PhoneNumber = user.PhoneNumber;
return new OkObjectResult(model);
}
There are many reasons to discourage including a .cpp file, but it isn't strictly disallowed. Your example should compile fine.
The problem is probably that you're compiling both main.cpp and foop.cpp, which means two copies of foop.cpp are being linked together. The linker is complaining about the duplication.
If you prefer using column names, you could do something like this as an alternative:
min(data$column_name)
The pipe, |
, is a special-character in regex (meaning "or") and you'll have to escape it with a \
.
Using your current regex:
\|.*$
I've tried this in Notepad++, as you've mentioned, and it appears to work well.
This works for me, in MVC5:
@Html.TextBoxFor(m => m.Name, new { @class = "form-control", id = "theID" , @Value="test" })
If navigating to another page . Navigator.pushReplacement()
can be used. It can be used If you're navigating from login to home screen. Or you can use .
AppBar(automaticallyImplyLeading: false)
To answer the question more generally, the answer is:
select: function( event , ui ) {
alert( "You selected: " + ui.item.label );
}
Complete example :
$('#test').each(function(i, el) {_x000D_
var that = $(el);_x000D_
that.autocomplete({_x000D_
source: ['apple','banana','orange'],_x000D_
select: function( event , ui ) {_x000D_
alert( "You selected: " + ui.item.label );_x000D_
}_x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>_x000D_
<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/themes/smoothness/jquery-ui.css" />_x000D_
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"></script>_x000D_
_x000D_
Type a fruit here: <input type="text" id="test" />
_x000D_
<html>
<body>
<script type="text/javascript">
var str="http://xyz.html?ID={0}&TId={1}&STId={2}&RId={3},14,480,3,38";
document.write(FormatString(str));
function FormatString(str) {
var args = str.split(',');
for (var i = 0; i < args.length; i++) {
var reg = new RegExp("\\{" + i + "\\}", "");
args[0]=args[0].replace(reg, args [i+1]);
}
return args[0];
}
</script>
</body>
</html>
You should do that in GridView's RowDataBound
event which is triggered for every GridViewRow
after it was databound.
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.Header)
{
e.Row.Cells[0].Text = "Date";
}
}
or you can set AutogenerateColumns
to false
and add the columns declaratively on aspx:
<asp:gridview id="GridView1"
onrowdatabound="GridView1_RowDataBound"
autogeneratecolumns="False"
emptydatatext="No data available."
runat="server">
<Columns>
<asp:BoundField DataField="DateField" HeaderText="Date"
SortExpression="DateField" />
</Columns>
</asp:gridview>
The .bashrc file is in your user home directory (~/.bashrc or ~vagrant/.bashrc both resolve to the same path), inside the VM's filesystem. This file is invisible on the host machine, so you can't use any Windows editors to edit it directly.
You have two simple choices:
Learn how to use a console-based text editor. My favourite is vi (or vim), which takes 15 minutes to learn the basics and is much quicker for simple edits than anything else.
vi .bashrc
Copy .bashrc out to /vagrant (which is a shared directory) and edit it using your Windows editors. Make sure not to save it back with any extensions.
cp .bashrc /vagrant ... edit using your host machine ... cp /vagrant/.bashrc .
I'd recommend getting to know the command-line based editors. Once you're working inside the VM, it's best to stay there as otherwise you might just get confused.
You (the vagrant user) are the owner of your home .bashrc so you do have permissions to edit it.
Once edited, you can execute it by typing source .bashrc I prefer to logout and in again (there may be more than one file executed on login).
To assign value of a text box whose id is "textbox" in JQuery please do the following
$("#textbox").get(0).value = "blah"
Because the final is always be called in whatever cases you have. You don't have exception, it is still called, catch exception, it is still called
In Chrome 72 (2019-02-09) I've discovered that the :in-range
attribute is applied to empty date
inputs, for some reason!
So this works for me: (I added the :not([max]):not([min])
selectors to avoid breaking date inputs that do have a range applied to them:
input[type=date]:not([max]):not([min]):in-range {
color: blue;
}
Screenshot:
Here's a runnable sample:
window.addEventListener( 'DOMContentLoaded', onLoad );_x000D_
_x000D_
function onLoad() {_x000D_
_x000D_
document.getElementById( 'date4' ).value = "2019-02-09";_x000D_
_x000D_
document.getElementById( 'date5' ).value = null;_x000D_
_x000D_
}
_x000D_
label {_x000D_
display: block;_x000D_
margin: 1em;_x000D_
}_x000D_
_x000D_
input[type=date]:not([max]):not([min]):in-range {_x000D_
color: blue;_x000D_
}
_x000D_
<label>_x000D_
<input type="date" id="date1" />_x000D_
Without HTML value=""_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date2" value="2019-02-09" />_x000D_
With HTML value=""_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date3" />_x000D_
Without HTML value="" but modified by user_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date4" />_x000D_
Without HTML value="" but set by script_x000D_
</label>_x000D_
_x000D_
<label>_x000D_
<input type="date" id="date5" value="2019-02-09" />_x000D_
With HTML value="" but cleared by script_x000D_
</label>
_x000D_
Another sed
,
sed '/cdef/r add.txt' input.txt
input.txt:
abcd
accd
cdef
line
web
add.txt:
line1
line2
line3
line4
Test:
sat:~# sed '/cdef/r add.txt' input.txt
abcd
accd
cdef
line1
line2
line3
line4
line
web
If you want to apply the changes in input.txt
file. Then, use -i
with sed
.
sed -i '/cdef/r add.txt' input.txt
If you want to use a regex as an expression you have to use the -E
tag with sed
.
sed -E '/RegexPattern/r add.txt' input.txt
If you want to add more than one:
hash = {:a => 1, :b => 2}
hash.merge! :c => 3, :d => 4
p hash
What you do is correct, but the correct syntax for 'auto increment' should be without space:
CREATE TABLE people (id integer primary key autoincrement, first_name string, last_name string);
(Please also note that I changed your varchars to strings. That's because SQLite internally transforms a varchar into a string, so why bother?)
then your insert should be, in SQL language as standard as possible:
INSERT INTO people(id, first_name, last_name) VALUES (null, 'john', 'doe');
while it is true that if you omit id it will automatically incremented and assigned, I personally prefer not to rely on automatic mechanisms which could change in the future.
A note on autoincrement: although, as many pointed out, it is not recommended by SQLite people, I do not like the automatic reuse of ids of deleted records if autoincrement is not used. In other words, I like that the id of a deleted record will never, ever appear again.
HTH
I had the same problem,
what you have to do is declare the second cursor as: DECLARE [second_cursor] Cursor LOCAL For
You see"CURSOR LOCAL FOR" instead of "CURSOR FOR"
To understand what a FOR loop does
The image above shows that FOR can be converted to WHILE, as they eventually have totally the same assembly code (at least in gcc). So we can break down FOR into a couple of pieces, to undertand what it does.
for (i = 0; i < 5; ++i) {
DoSomethingA();
DoSomethingB();
}
is equal to the WHILE version
i = 0; //first argument (a statement) of for
while (i < 5 /*second argument (a condition) of for*/) {
DoSomethingA();
DoSomethingB();
++i; //third argument (another statement) of for
}
It means that you can use FOR as a simple version of WHILE:
The first argument of FOR (int i) is executed, outside, before the loop.
The third argument of FOR (i++ or ++i) is executed, inside, in the last line of the loop.
TL:DR: no matter whether
i++
or++i
, we know that when they are standalone, they make no difference but +1 on themselves.In school, they usually teach the i++ way, but there are also lots of people prefer the ++i way due to several reasons.
NOTE: In the past, i++ has very little impact on the performance, as it does not only plus one by itself, but also keeps the original value in the register. But for now, it makes no difference as the compiler makes the plus one part the same.
UNNEST
function with arrays can be used along with multirow VALUES syntax. I'm think that this method is slower than using COPY
but it is useful to me in work with psycopg and python (python list
passed to cursor.execute
becomes pg ARRAY
):
INSERT INTO tablename (fieldname1, fieldname2, fieldname3)
VALUES (
UNNEST(ARRAY[1, 2, 3]),
UNNEST(ARRAY[100, 200, 300]),
UNNEST(ARRAY['a', 'b', 'c'])
);
without VALUES
using subselect with additional existance check:
INSERT INTO tablename (fieldname1, fieldname2, fieldname3)
SELECT * FROM (
SELECT UNNEST(ARRAY[1, 2, 3]),
UNNEST(ARRAY[100, 200, 300]),
UNNEST(ARRAY['a', 'b', 'c'])
) AS temptable
WHERE NOT EXISTS (
SELECT 1 FROM tablename tt
WHERE tt.fieldname1=temptable.fieldname1
);
the same syntax to bulk updates:
UPDATE tablename
SET fieldname1=temptable.data
FROM (
SELECT UNNEST(ARRAY[1,2]) AS id,
UNNEST(ARRAY['a', 'b']) AS data
) AS temptable
WHERE tablename.id=temptable.id;
If you are going to use this conversion a lot, consider calculating once and putting the results in a dictionary:
>>> import string
>>> di=dict(zip(string.letters,[ord(c)%32 for c in string.letters]))
>>> di['c']
3
The advantage is dictionary lookups are very fast vs iterating over a list on every call.
>>> for c in sorted(di.keys()):
>>> print "{0}:{1} ".format(c, di[c])
# what you would expect....
Set Arg = WScript.Arguments
set WshShell = createObject("Wscript.Shell")
Set Inp = WScript.Stdin
Set Outp = Wscript.Stdout
Set rs = CreateObject("ADODB.Recordset")
With rs
.Fields.Append "LineNumber", 4
.Fields.Append "Txt", 201, 5000
.Open
LineCount = 0
Do Until Inp.AtEndOfStream
LineCount = LineCount + 1
.AddNew
.Fields("LineNumber").value = LineCount
.Fields("Txt").value = Inp.readline
.UpDate
Loop
.Sort = "LineNumber ASC"
If LCase(Arg(1)) = "t" then
If LCase(Arg(2)) = "i" then
.filter = "LineNumber < " & LCase(Arg(3)) + 1
ElseIf LCase(Arg(2)) = "x" then
.filter = "LineNumber > " & LCase(Arg(3))
End If
ElseIf LCase(Arg(1)) = "b" then
If LCase(Arg(2)) = "i" then
.filter = "LineNumber > " & LineCount - LCase(Arg(3))
ElseIf LCase(Arg(2)) = "x" then
.filter = "LineNumber < " & LineCount - LCase(Arg(3)) + 1
End If
End If
Do While not .EOF
Outp.writeline .Fields("Txt").Value
.MoveNext
Loop
End With
Cut
filter cut {t|b} {i|x} NumOfLines
Cuts the number of lines from the top or bottom of file.
t - top of the file
b - bottom of the file
i - include n lines
x - exclude n lines
Example
cscript /nologo filter.vbs cut t i 5 < "%systemroot%\win.ini"
Another way This outputs lines 5001+, adapt for your use. This uses almost no memory.
Do Until Inp.AtEndOfStream
Count = Count + 1
If count > 5000 then
OutP.WriteLine Inp.Readline
End If
Loop
[Update April 2016] This answer is now outdated, custom naked domain mapping is supported, see Lawrence Mok's answer.
I have figured it out!
First off: it is impossible to link something like mydomain.com
with your appspot app. This is considered a naked domain, which is not supported by Google App Engine (anymore). Strictly speaking, the answer to my question has to be "impossible". Read on...
All you can do is add subdomains pointing to your app, e.g myappid.mydomain.com
. The key to get your top level domain linked to your app is to realize that www
is a subdomain like any other!
myappid.mydomain.com
is treated exactly the same as www.mydomain.com
!
Here are the steps:
www
and click Addwww
for your domain and point to ghs.googlehosted.com
Now you have www.mydomain.com
linked to your app.
I wished this would have been more obvious in the documentation...Good luck!
There is a good article on this topic: PL/SQL: Sleep without using DBMS_LOCK that helped me out. I used Option 2 wrapped in a custom package. Proposed solutions are:
Option 1: APEX_UTIL.sleep
If APEX is installed you can use the procedure “PAUSE” from the publicly available package APEX_UTIL.
Example – “Wait 5 seconds”:
SET SERVEROUTPUT ON ;
BEGIN
DBMS_OUTPUT.PUT_LINE('Start ' || to_char(SYSDATE, 'YYYY-MM-DD HH24:MI:SS'));
APEX_UTIL.PAUSE(5);
DBMS_OUTPUT.PUT_LINE('End ' || to_char(SYSDATE, 'YYYY-MM-DD HH24:MI:SS'));
END;
/
Option 2: java.lang.Thread.sleep
An other option is the use of the method “sleep” from the Java class “Thread”, which you can easily use through providing a simple PL/SQL wrapper procedure:
Note: Please remember, that “Thread.sleep” uses milliseconds!
--- create ---
CREATE OR REPLACE PROCEDURE SLEEP (P_MILLI_SECONDS IN NUMBER)
AS LANGUAGE JAVA NAME 'java.lang.Thread.sleep(long)';
--- use ---
SET SERVEROUTPUT ON ;
BEGIN
DBMS_OUTPUT.PUT_LINE('Start ' || to_char(SYSDATE, 'YYYY-MM-DD HH24:MI:SS'));
SLEEP(5 * 1000);
DBMS_OUTPUT.PUT_LINE('End ' || to_char(SYSDATE, 'YYYY-MM-DD HH24:MI:SS'));
END;
/
Try cleaning your hosts file.
I spent about half a day on this, and none of these answers worked for me. I finally found the solution hinted at on OTN (the last place I look when I run into Oracle issues), and someone mentioned looking at the hosts file. I had recently modified the hosts file because this particular machine didn't have access to DNS.
I had a line for this host:
123.123.123.123 fully.qualified.domain.name.com hostname
Commenting out the line above allowed me to install the Oracle client.
You want sys.exit()
. From Python's docs:
>>> import sys
>>> print sys.exit.__doc__
exit([status])
Exit the interpreter by raising SystemExit(status).
If the status is omitted or None, it defaults to zero (i.e., success).
If the status is numeric, it will be used as the system exit status.
If it is another kind of object, it will be printed and the system
exit status will be one (i.e., failure).
So, basically, you'll do something like this:
from sys import exit
# Code!
exit(0) # Successful exit
Other people have suggested using in.nextLine()
to clear the buffer, which works for single-line input. As comments point out, however, sometimes System.in input can be multi-line.
You can instead create a new Scanner object where you want to clear the buffer if you are using System.in and not some other InputStream.
in = new Scanner(System.in);
If you do this, don't call in.close()
first. Doing so will close System.in, and so you will get NoSuchElementExceptions on subsequent calls to in.nextInt();
System.in probably shouldn't be closed during your program.
(The above approach is specific to System.in. It might not be appropriate for other input streams.)
If you really need to close your Scanner object before creating a new one, this StackOverflow answer suggests creating an InputStream wrapper for System.in that has its own close() method that doesn't close the wrapped System.in stream. This is overkill for simple programs, though.
There are only two ways to be 100% certain that the COUNT(*)
and the actual query will give consistent results:
COUNT(*)
with the query, as in your Approach 2. I recommend the form you show in your example, not the correlated subquery form shown in the comment from kogus.SNAPSHOT
or SERIALIZABLE
isolation level. Using one of those isolation levels is important because any other isolation level allows new rows created by other clients to become visible in your current transaction. Read the MSDN documentation on SET TRANSACTION ISOLATION
for more details.
Using ES6, you can have user.js
:
export default class User {
constructor() {
...
}
}
And then use it in server.js
const User = require('./user.js').default;
const user = new User();
just use CustomEvent
Node.prototype.fire=function(type,options){
var event=new CustomEvent(type);
for(var p in options){
event[p]=options[p];
}
this.dispatchEvent(event);
}
4 ex want to simulate ctrl+z
window.addEventListener("keyup",function(ev){
if(ev.ctrlKey && ev.keyCode === 90) console.log(ev); // or do smth
})
document.fire("keyup",{ctrlKey:true,keyCode:90,bubbles:true})
I had this problem and just decided to rename one of the programs from python.exe to python2.7.exe. Now I can specify on command prompt which program to run easily without introducing any scripts or changing environmental paths. So i have two programs: python2.7 and python (the latter which is v.3.8 aka default).
We can also do this using randint.
from random import randint
l= ['a','b','c']
def get_rand_element(l):
if l:
return l[randint(0,len(l)-1)]
else:
return None
get_rand_element(l)
in undergrad, we used NERO (a combination of neural network and genetic algorithm) to teach in-game robots to make intelligent decisions. It was pretty cool.
What you could do, is display a file-input and overlay it with your transparent drop-area, being careful to use a name like file[1]
. {Be sure to have the enctype="multipart/form-data"
inside your FORM tag.}
Then have the drop-area handle the extra files by dynamically creating more file inputs for files 2..number_of_files, be sure to use the same base name, populating the value-attribute appropriately.
Lastly (front-end) submit the form.
All that's required to handle this method is to alter your procedure to handle an array of files.
Well, PHP json_encode() returns a string.
You can use parseFloat() or parseInt() in the js code though:
parseFloat('122.5'); // returns 122.5
parseInt('22'); // returns 22
parseInt('22.5'); // returns 22
As said above -- use Euclidean distance.
from math import hypot
def in_radius(c_x, c_y, r, x, y):
return math.hypot(c_x-x, c_y-y) <= r
import os
import os.path
def get_files(target_dir):
item_list = os.listdir(target_dir)
file_list = list()
for item in item_list:
item_dir = os.path.join(target_dir,item)
if os.path.isdir(item_dir):
file_list += get_files(item_dir)
else:
file_list.append(item_dir)
return file_list
Here I use a recursive structure.
Your first usage of Map
is inside a function in the combat
class. That happens before Map
is defined, hence the error.
A forward declaration only says that a particular class will be defined later, so it's ok to reference it or have pointers to objects, etc. However a forward declaration does not say what members a class has, so as far as the compiler is concerned you can't use any of them until Map
is fully declared.
The solution is to follow the C++ pattern of the class declaration in a .h
file and the function bodies in a .cpp
. That way all the declarations appear before the first definitions, and the compiler knows what it's working with.
I know this question is old but populating Excell Cells with Dates via VSTO has a couple of gotchas.
Formatting the entire column did NOT work for me.
Not even this approach from Microsoft worked: http://msdn.microsoft.com/en-us/library/microsoft.office.tools.excel.namedrange.numberformat.aspx
I found Formula's don't work on dates with yyyy-mmm-dd format - even though the cells were DATE FORMAT! You have to translate Dates to a dd/mm/yyyy format for use in formula's.
For example the dates I am getting come back from SQL Analysis Server and I had to flip them and then format them:
using (var dateRn = xlApp.Range["A1"].WithComCleanup())
{
dateRn.Resource.Value2 = Convert.ToDateTime(dateRn.Resource.Value2).ToString("dd-MMM-yyyy");
}
using (var rn = xlApp.Range["A1:A10"].WithComCleanup())
{
rn.Resource.Select();
rn.Resource.NumberFormat = "d-mmm-yyyy;@";
}
Otherwise formula's using Dates doesn't work - the formula in cell C4 is the same as C3:
Write the queue job information in long format to text file
qstat -f > queue.txt
Grep job names
grep 'Job_Name' queue.txt
Found the solution:
It should be:
"{'Id1':'2','Id2':'2'}"
and not
"{'Id1':'2'},{'Id2':'2'}"
It should be legal to put a semicolon directly before the WITH keyword.
If you've created your project using:
vue init webpack myproject
You'd need to set your NODE_ENV
to production and run, because the project has web pack configured for both development and production:
NODE_ENV=production npm run build
Copy dist/
directory into your website root directory.
If you're deploying with Docker, you'd need an express server, serving the dist/
directory.
Dockerfile
FROM node:carbon
RUN mkdir -p /usr/src/app
WORKDIR /usr/src/app
ADD . /usr/src/app
RUN npm install
ENV NODE_ENV=production
RUN npm run build
# Remove unused directories
RUN rm -rf ./src
RUN rm -rf ./build
# Port to expose
EXPOSE 8080
CMD [ "npm", "start" ]
@erikkallen is close but not quite right.
theta_rad = atan2(y,x);
theta_deg = (theta_rad/M_PI*180) + (theta_rad > 0 ? 0 : 360);
This should work in C++: (depending on how fmod is implemented, it may be faster or slower than the conditional expression)
theta_deg = fmod(atan2(y,x)/M_PI*180,360);
Alternatively you could do this:
theta_deg = atan2(-y,-x)/M_PI*180 + 180;
since (x,y) and (-x,-y) differ in angles by 180 degrees.
I had to set
C:\ProgramData\MySQL\MySQL Server 8.0/my.ini secure-file-priv=""
When I commented line with secure-file-priv
, secure-file-priv was null and I couldn't download data.
As with any other kind of C++ object, arrays can be stored either directly in named variables (then the size must be a compile-time constant; C++ does not support VLAs), or they can be stored anonymously on the heap and accessed indirectly via pointers (only then can the size be computed at runtime).
Automatic arrays (arrays living "on the stack") are created each time the flow of control passes through the definition of a non-static local array variable:
void foo()
{
int automatic_array[8];
}
Initialization is performed in ascending order. Note that the initial values depend on the element type T
:
T
is a POD (like int
in the above example), no initialization takes place.T
initializes all the elements.T
provides no accessible default-constructor, the program does not compile.Alternatively, the initial values can be explicitly specified in the array initializer, a comma-separated list surrounded by curly brackets:
int primes[8] = {2, 3, 5, 7, 11, 13, 17, 19};
Since in this case the number of elements in the array initializer is equal to the size of the array, specifying the size manually is redundant. It can automatically be deduced by the compiler:
int primes[] = {2, 3, 5, 7, 11, 13, 17, 19}; // size 8 is deduced
It is also possible to specify the size and provide a shorter array initializer:
int fibonacci[50] = {0, 1, 1}; // 47 trailing zeros are deduced
In that case, the remaining elements are zero-initialized. Note that C++ allows an empty array initializer (all elements are zero-initialized), whereas C89 does not (at least one value is required). Also note that array initializers can only be used to initialize arrays; they cannot later be used in assignments.
Static arrays (arrays living "in the data segment") are local array variables defined with the static
keyword and array variables at namespace scope ("global variables"):
int global_static_array[8];
void foo()
{
static int local_static_array[8];
}
(Note that variables at namespace scope are implicitly static. Adding the static
keyword to their definition has a completely different, deprecated meaning.)
Here is how static arrays behave differently from automatic arrays:
(None of the above is specific to arrays. These rules apply equally well to other kinds of static objects.)
Array data members are created when their owning object is created. Unfortunately, C++03 provides no means to initialize arrays in the member initializer list, so initialization must be faked with assignments:
class Foo
{
int primes[8];
public:
Foo()
{
primes[0] = 2;
primes[1] = 3;
primes[2] = 5;
// ...
}
};
Alternatively, you can define an automatic array in the constructor body and copy the elements over:
class Foo
{
int primes[8];
public:
Foo()
{
int local_array[] = {2, 3, 5, 7, 11, 13, 17, 19};
std::copy(local_array + 0, local_array + 8, primes + 0);
}
};
In C++0x, arrays can be initialized in the member initializer list thanks to uniform initialization:
class Foo
{
int primes[8];
public:
Foo() : primes { 2, 3, 5, 7, 11, 13, 17, 19 }
{
}
};
This is the only solution that works with element types that have no default constructor.
Dynamic arrays have no names, hence the only means of accessing them is via pointers. Because they have no names, I will refer to them as "anonymous arrays" from now on.
In C, anonymous arrays are created via malloc
and friends. In C++, anonymous arrays are created using the new T[size]
syntax which returns a pointer to the first element of an anonymous array:
std::size_t size = compute_size_at_runtime();
int* p = new int[size];
The following ASCII art depicts the memory layout if the size is computed as 8 at runtime:
+---+---+---+---+---+---+---+---+
(anonymous) | | | | | | | | |
+---+---+---+---+---+---+---+---+
^
|
|
+-|-+
p: | | | int*
+---+
Obviously, anonymous arrays require more memory than named arrays due to the extra pointer that must be stored separately. (There is also some additional overhead on the free store.)
Note that there is no array-to-pointer decay going on here. Although evaluating new int[size]
does in fact create an array of integers, the result of the expression new int[size]
is already a pointer to a single integer (the first element), not an array of integers or a pointer to an array of integers of unknown size. That would be impossible, because the static type system requires array sizes to be compile-time constants. (Hence, I did not annotate the anonymous array with static type information in the picture.)
Concerning default values for elements, anonymous arrays behave similar to automatic arrays. Normally, anonymous POD arrays are not initialized, but there is a special syntax that triggers value-initialization:
int* p = new int[some_computed_size]();
(Note the trailing pair of parenthesis right before the semicolon.) Again, C++0x simplifies the rules and allows specifying initial values for anonymous arrays thanks to uniform initialization:
int* p = new int[8] { 2, 3, 5, 7, 11, 13, 17, 19 };
If you are done using an anonymous array, you have to release it back to the system:
delete[] p;
You must release each anonymous array exactly once and then never touch it again afterwards. Not releasing it at all results in a memory leak (or more generally, depending on the element type, a resource leak), and trying to release it multiple times results in undefined behavior. Using the non-array form delete
(or free
) instead of delete[]
to release the array is also undefined behavior.
I think the simplest way is that:
type InputEvent = React.ChangeEvent<HTMLInputElement>;
type ButtonEvent = React.MouseEvent<HTMLButtonElement>;
update = (e: InputEvent): void => this.props.login[e.target.name] = e.target.value;
submit = (e: ButtonEvent): void => {
this.props.login.logIn();
e.preventDefault();
}
I just wanted a polyfill that exactly replicated ES2020 behaviour since I'm locked into node versions a lot earlier than 12.9 (when Promise.allSettled
appeared), unfortunately. So for what it's worth, this is my version:
const settle = (promise) => (promise instanceof Promise) ?
promise.then(val => ({ value: val, status: "fulfilled" }),
err => ({ reason: err, status: "rejected" })) :
{ value: promise, status: 'fulfilled' };
const allSettled = async (parr) => Promise.all(parr.map(settle));
This handles a mixed array of promise and non-promise values, as does the ES version. It hands back the same array of { status, value/reason }
objects as the native version.
take example if we want to compare "a" and "b", i.e ("a" == this)
If using the latest iteration of Android Studio 3.0 and generating your Activity classes, in your styles files change this:
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
To this:
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.ActionBar" />
To properly load functions from ~/.config/fish/functions
You may set only ONE function inside file and name file the same as function name + add .fish extension.
This way changing file contents reload functions in opened terminals (note some delay may occur ~1-5s)
That way if you edit either by commandline
function name; function_content; end
then
funcsave name
you have user defined functions in console and custom made in the same order.
You can now use the GTEST_SKIP()
macro to conditionally skip a test at runtime. For example:
TEST(Foo, Bar)
{
if (blah)
GTEST_SKIP();
...
}
Note that this is a very recent feature so you may need to update your GoogleTest library to use it.
Using the Range.Find method, as pointed out above, along with a loop for each worksheet in the workbook, is the fastest way to do this. The following, for example, locates the string "Question?" in each worksheet and replaces it with the string "Answered!".
Sub FindAndExecute()
Dim Sh As Worksheet
Dim Loc As Range
For Each Sh In ThisWorkbook.Worksheets
With Sh.UsedRange
Set Loc = .Cells.Find(What:="Question?")
If Not Loc Is Nothing Then
Do Until Loc Is Nothing
Loc.Value = "Answered!"
Set Loc = .FindNext(Loc)
Loop
End If
End With
Set Loc = Nothing
Next
End Sub
This will detect any version of Firefox:
var isFirefox = navigator.userAgent.toLowerCase().indexOf('firefox') > -1;
more specifically:
if(navigator.userAgent.toLowerCase().indexOf('firefox') > -1){
// Do Firefox-related activities
}
You may want to consider using feature-detection ala Modernizr, or a related tool, to accomplish what you need.
While you can't use floating point division in Bash you can use fixed point division. All that you need to do is multiply your integers by a power of 10 and then divide off the integer part and use a modulo operation to get the fractional part. Rounding as needed.
#!/bin/bash
n=$1
d=$2
# because of rounding this should be 10^{i+1}
# where i is the number of decimal digits wanted
i=4
P=$((10**(i+1)))
Pn=$(($P / 10))
# here we 'fix' the decimal place, divide and round tward zero
t=$(($n * $P / $d + ($n < 0 ? -5 : 5)))
# then we print the number by dividing off the interger part and
# using the modulo operator (after removing the rounding digit) to get the factional part.
printf "%d.%0${i}d\n" $(($t / $P)) $(((t < 0 ? -t : t) / 10 % $Pn))
If you are using com.google.android.gms:play-services-maps:16.0.0 or below and your app is targeting API level 28 (Android 9.0) or above, you must include the following declaration within the element of AndroidManifest.xml.
<uses-library
android:name="org.apache.http.legacy"
android:required="false" />
This is handled for you if you are using com.google.android.gms:play-services-maps:16.1.0 and is not necessary if your app is targeting a lower API level.
In Notepad++, use replace all with regular expression. This has advantage over conversion command in menu that you can operate on entire folder w/o having to open each file or drag n drop (on several hundred files it will noticeably become slower) plus you can also set filename wildcard filter.
(\r?\n)|(\r\n?)
to
\n
This will match every possible line ending pattern (single \r, \n or \r\n) back to \n. (Or \r\n if you are converting to windows-style)
To operate on multiple files, either:
You can also use map:
a = [1, 1, 1, 1, 1]
b = 1
list(map(lambda x: x + b, a))
It gives:
[2, 2, 2, 2, 2]
Since for some reason white isn't available for selection, I have found that mat-palette($mat-grey, 50)
was close enough to white, for my needs at least.
QPushButton *button = new QPushButton;
button->setIcon(QIcon(":/icons/..."));
button->setIconSize(QSize(65, 65));
-Module name gulp-task
-Project name project-x
You want to link gulp-task:
1: Go to the gulp-task directory then do npm link
this will symlink the project to your global modules
2: Go to your project project-x then do npm install
make sure to remove the current node_modules directory
Now you want to remove this madness and use the real gulp-task, we have two options:
1: Go to your project and do npm unlink gulp-task
this will remove the linked installed module
2: Go to the gulp-task directory and do npm unlink
to remove symlink. Notice we didn't use the name of the module
3: celebrate
What if this didn't work, verify by locating your global installed module. My are location ls -la /usr/local/lib/node_modules/
if you are using nvm it will be a different path
1: locate your global dependencies cd /usr/local/lib/node_modules/
2: removing symlink is simply using the rm
command
rm gulp-task
make sure you don't have /
at the end
rm gulp-task/
is wrong
rm gulp-task
??
If you want lines instead of line ranges, you can do it with perl: eg. if you want to get line 1, 3 and 5 from a file, say /etc/passwd:
perl -e 'while(<>){if(++$l~~[1,3,5]){print}}' < /etc/passwd
I know you can look up IP address to get approximate location, but it's not always accurate. Perhaps they're using that?
update:
Typically, your browser uses information about the Wi-Fi access points around you to estimate your location. If no Wi-Fi access points are in range, or your computer doesn't have Wi-Fi, it may resort to using your computer's IP address to get an approximate location.
Wrap it in a function.
NodeT = namedtuple('Node', 'val left right')
def Node(val, left=None, right=None):
return NodeT(val, left, right)
An internal version number. This number is used only to determine whether one version is more recent than another, with higher numbers indicating more recent versions. This is not the version number shown to users; that number is set by the versionName attribute. The value must be set as an integer, such as "100". You can define it however you want, as long as each successive version has a higher number. [...]
The version name shown to users. This attribute can be set as a raw string or as a reference to a string resource. The string has no other purpose than to be displayed to users. The versionCode attribute holds the significant version number used internally.
Reading that it's pretty clear that versionName is just something that's shown to the user, versionCode is what matters. Just keep increasing it and everything should be good.
This question seems to have been put to rest, but in my quest for a solution that I could more easily understand (and written in Swift), I arrived at this (also posted to: How to crop the UIImage?)
I wanted to be able to crop from a region based on an aspect ratio, and scale to a size based on a outer bounding extent. Here is my variation:
import AVFoundation
import ImageIO
class Image {
class func crop(image:UIImage, crop source:CGRect, aspect:CGSize, outputExtent:CGSize) -> UIImage {
let sourceRect = AVMakeRectWithAspectRatioInsideRect(aspect, source)
let targetRect = AVMakeRectWithAspectRatioInsideRect(aspect, CGRect(origin: CGPointZero, size: outputExtent))
let opaque = true, deviceScale:CGFloat = 0.0 // use scale of device's main screen
UIGraphicsBeginImageContextWithOptions(targetRect.size, opaque, deviceScale)
let scale = max(
targetRect.size.width / sourceRect.size.width,
targetRect.size.height / sourceRect.size.height)
let drawRect = CGRect(origin: -sourceRect.origin * scale, size: image.size * scale)
image.drawInRect(drawRect)
let scaledImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return scaledImage
}
}
There are a couple things that I found confusing, the separate concerns of cropping and resizing. Cropping is handled with the origin of the rect that you pass to drawInRect, and scaling is handled by the size portion. In my case, I needed to relate the size of the cropping rect on the source, to my output rect of the same aspect ratio. The scale factor is then output / input, and this needs to be applied to the drawRect (passed to drawInRect).
One caveat is that this approach effectively assumes that the image you are drawing is larger than the image context. I have not tested this, but I think you can use this code to handle cropping / zooming, but explicitly defining the scale parameter to be the aforementioned scale parameter. By default, UIKit applies a multiplier based on the screen resolution.
Finally, it should be noted that this UIKit approach is higher level than CoreGraphics / Quartz and Core Image approaches, and seems to handle image orientation issues. It is also worth mentioning that it is pretty fast, second to ImageIO, according to this post here: http://nshipster.com/image-resizing/
Clearing a list in place will affect all other references of the same list.
For example, this method doesn't affect other references:
>>> a = [1, 2, 3]
>>> b = a
>>> a = []
>>> print(a)
[]
>>> print(b)
[1, 2, 3]
But this one does:
>>> a = [1, 2, 3]
>>> b = a
>>> del a[:] # equivalent to del a[0:len(a)]
>>> print(a)
[]
>>> print(b)
[]
>>> a is b
True
You could also do:
>>> a[:] = []
Finally, I added the headers this way:
@Override
public Response intercept(Interceptor.Chain chain) throws IOException {
Request request = chain.request();
Request newRequest;
newRequest = request.newBuilder()
.addHeader(HeadersContract.HEADER_AUTHONRIZATION, O_AUTH_AUTHENTICATION)
.addHeader(HeadersContract.HEADER_X_CLIENT_ID, CLIENT_ID)
.build();
return chain.proceed(newRequest);
}
Set to null. Then there are no references anymore and the object will become eligible for Garbage Collection. GC will automatically remove the object from the heap.
This is what worked for me:
I was using the Microsoft.IdentityModel.Clients.ActiveDirectory
version 3.19 in a class library project but only had version 2.22 installed in the actual ASP.NET Web Application project. Upgrading to 3.19 in the web app project got me past the error.
I found this question and none of the solutions here worked for me. I found another solution that got rid of the gaps below images in Chrome. I had to add line-height:0;
to the img selector in my CSS and the gaps below images went away.
Crazy that this problem persists in browsers in 2013.
how about making the heading a list-element with different styles like so
<ul>
<li class="heading">heading</li>
<li>list item</li>
<li>list item</li>
<li>list item</li>
<li>list item</li>
</ul>
and the CSS
ul .heading {font-weight: normal; list-style: none;}
additionally, use a reset CSS to set margins and paddings right on the ul and li. here's a good reset CSS. once you've reset the margins and paddings, you can apply some margin on the list-elements other than the one's with the heading class, to indent them.
http://www.manning.com/hethmon/ -- "Illustrated Guide to HTTP by Paul S. Hethmon" from Manning is a very good book to learn HTTP protocol and will be very useful to someone implementing it /extending it.
Apple provides detailed, illustrated instructions covering every step of the process. Log in to the iPhone developer site and click the "program portal" link. In the program portal you'll find a link to the program portal user's guide, which is a really good reference and guide on this topic.
Just download and install "Samsung Kies" from this link. and everything would work as required.
Before installing, uninstall the drivers you have installed for your device.
Update:
Two possible solutions:
OK, two steps to this - first is to write a function that does the translation you want - I've put an example together based on your pseudo-code:
def label_race (row):
if row['eri_hispanic'] == 1 :
return 'Hispanic'
if row['eri_afr_amer'] + row['eri_asian'] + row['eri_hawaiian'] + row['eri_nat_amer'] + row['eri_white'] > 1 :
return 'Two Or More'
if row['eri_nat_amer'] == 1 :
return 'A/I AK Native'
if row['eri_asian'] == 1:
return 'Asian'
if row['eri_afr_amer'] == 1:
return 'Black/AA'
if row['eri_hawaiian'] == 1:
return 'Haw/Pac Isl.'
if row['eri_white'] == 1:
return 'White'
return 'Other'
You may want to go over this, but it seems to do the trick - notice that the parameter going into the function is considered to be a Series object labelled "row".
Next, use the apply function in pandas to apply the function - e.g.
df.apply (lambda row: label_race(row), axis=1)
Note the axis=1 specifier, that means that the application is done at a row, rather than a column level. The results are here:
0 White
1 Hispanic
2 White
3 White
4 Other
5 White
6 Two Or More
7 White
8 Haw/Pac Isl.
9 White
If you're happy with those results, then run it again, saving the results into a new column in your original dataframe.
df['race_label'] = df.apply (lambda row: label_race(row), axis=1)
The resultant dataframe looks like this (scroll to the right to see the new column):
lname fname rno_cd eri_afr_amer eri_asian eri_hawaiian eri_hispanic eri_nat_amer eri_white rno_defined race_label
0 MOST JEFF E 0 0 0 0 0 1 White White
1 CRUISE TOM E 0 0 0 1 0 0 White Hispanic
2 DEPP JOHNNY NaN 0 0 0 0 0 1 Unknown White
3 DICAP LEO NaN 0 0 0 0 0 1 Unknown White
4 BRANDO MARLON E 0 0 0 0 0 0 White Other
5 HANKS TOM NaN 0 0 0 0 0 1 Unknown White
6 DENIRO ROBERT E 0 1 0 0 0 1 White Two Or More
7 PACINO AL E 0 0 0 0 0 1 White White
8 WILLIAMS ROBIN E 0 0 1 0 0 0 White Haw/Pac Isl.
9 EASTWOOD CLINT E 0 0 0 0 0 1 White White
Intent intent=new Intent(String) is defined for parameter task, whereas you are passing parameter componentname into this, use instead:
Intent i = new Intent(Settings.this, com.scytec.datamobile.vd.gui.android.AppPreferenceActivity.class);
startActivity(i);
In this statement replace ActivityName by Name of Class of Activity, this code resides in.
open key.properties and check your path is correct. (replace from \ to /)
example:-
replace from "storeFile=D:\Projects\Flutter\Key\key.jks" to "storeFile=D:/Projects/Flutter/Key/key.jks"
I usually use data-* attributes in HTML.
<div class="service-container" data-service="<?php echo $myService->getValue(); ?>">
</div>
<script>
$(document).ready(function() {
$('.service-container').each(function() {
var container = $(this);
var service = container.data('service');
// Variable "service" now contains the value of $myService->getValue();
});
});
</script>
This example uses jQuery, but it can be adapted for another library or vanilla JavaScript.
You can read more about the dataset property here: https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement.dataset
This is really just a syntax switch. OK, so we have this method call:
[NSPredicate predicateWithFormat:@"name contains[c] %@", searchText];
In Swift, constructors skip the "blahWith…" part and just use the class name as a function and then go straight to the arguments, so [NSPredicate predicateWithFormat: …]
would become NSPredicate(format: …)
. (For another example, [NSArray arrayWithObject: …]
would become NSArray(object: …)
. This is a regular pattern in Swift.)
So now we just need to pass the arguments to the constructor. In Objective-C, NSString literals look like @""
, but in Swift we just use quotation marks for strings. So that gives us:
let resultPredicate = NSPredicate(format: "name contains[c] %@", searchText)
And in fact that is exactly what we need here.
(Incidentally, you'll notice some of the other answers instead use a format string like "name contains[c] \(searchText)"
. That is not correct. That uses string interpolation, which is different from predicate formatting and will generally not work for this.)
Complement with an additional example, you can access all job parameters in JavaConfig class:
@Bean
@StepScope
public ItemStreamReader<GenericMessage> reader(@Value("#{jobParameters}") Map<String,Object> jobParameters){
....
}
Solved it by setting gradle version 3.2.1
buildscript {
dependencies {
classpath 'com.android.tools.build:gradle:3.2.1'
}
In Project level Gradle
sed "s/^[ \t]*//" -i youfile
Warning: this will overwrite the original file.
To get the key IDs (8 bytes, 16 hex digits), this is the command which worked for me in GPG 1.4.16, 2.1.18 and 2.2.19:
gpg --list-packets <key.asc | awk '$1=="keyid:"{print$2}'
To get some more information (in addition to the key ID):
gpg --list-packets <key.asc
To get even more information:
gpg --list-packets -vvv --debug 0x2 <key.asc
The command
gpg --dry-run --import <key.asc
also works in all 3 versions, but in GPG 1.4.16 it prints only a short (4 bytes, 8 hex digits) key ID, so it's less secure to identify keys.
Some commands in other answers (e.g. gpg --show-keys
, gpg --with-fingerprint
, gpg --import --import-options show-only
) don't work in some of the 3 GPG versions above, thus they are not portable when targeting multiple versions of GPG.
I know its pretty old but I just encounter the problem and there is what I saw in the SQL doc :
[For best results when using BETWEEN with date or time values,] use CAST() to explicitly convert the values to the desired data type. Examples: If you compare a DATETIME to two DATE values, convert the DATE values to DATETIME values. If you use a string constant such as '2001-1-1' in a comparison to a DATE, cast the string to a DATE.
I assume it's better to use STR_TO_DATE since they took the time to make a function just for that and also the fact that i found this in the BETWEEN doc...
While yourTextField.requestFocus()
is A solution, it is not the best since in the official Java documentation this is discourage as the method requestFocus()
is platform dependent.
The documentation says:
Note that the use of this method is discouraged because its behavior is platform dependent. Instead we recommend the use of requestFocusInWindow().
Use yourJTextField.requestFocusInWindow()
instead.
Here's Microsoft's write up on using SET IDENTITY_INSERT, which might be helpful to others seeing this post if they, like me, found this post when trying to recreate deleted records while maintaining the original identity column value.
to recreate deleted records with original identity column value: http://msdn.microsoft.com/en-us/library/aa259221(v=sql.80).aspx
If you want it outside of loop then use the below code.
<?php
$author_id = get_post_field ('post_author', $cause_id);
$display_name = get_the_author_meta( 'display_name' , $author_id );
echo $display_name;
?>
In SQL 2005 and above, there's a trick to solve this problem without changing the table's data pages. This is important for large tables where touching every data page can take minutes or hours. The trick also works even if the identity column is a primary key, is part of a clustered or non-clustered index, or other gotchas which can trip up the the simpler "add/remove/rename column" solution.
Here's the trick: you can use SQL Server's ALTER TABLE...SWITCH statement to change the schema of a table without changing the data, meaning you can replace a table with an IDENTITY with an identical table schema, but without an IDENTITY column. The same trick works to add IDENTITY to an existing column.
Normally, ALTER TABLE...SWITCH is used to efficiently replace a full partition in a partitioned table with a new, empty partition. But it can also be used in non-partitioned tables too.
I've used this trick to convert, in under 5 seconds, a column of a of a 2.5 billion row table from IDENTITY to a non-IDENTITY (in order to run a multi-hour query whose query plan worked better for non-IDENTITY columns), and then restored the IDENTITY setting, again in less than 5 seconds.
Here's a code sample of how it works.
CREATE TABLE Test
(
id int identity(1,1),
somecolumn varchar(10)
);
INSERT INTO Test VALUES ('Hello');
INSERT INTO Test VALUES ('World');
-- copy the table. use same schema, but no identity
CREATE TABLE Test2
(
id int NOT NULL,
somecolumn varchar(10)
);
ALTER TABLE Test SWITCH TO Test2;
-- drop the original (now empty) table
DROP TABLE Test;
-- rename new table to old table's name
EXEC sp_rename 'Test2','Test';
-- update the identity seed
DBCC CHECKIDENT('Test');
-- see same records
SELECT * FROM Test;
This is obviously more involved than the solutions in other answers, but if your table is large this can be a real life-saver. There are some caveats:
There's a good article on TechNet detailing the requirements above.
UPDATE - Eric Wu had a comment below that adds important info about this solution. Copying it here to make sure it gets more attention:
There's another caveat here that is worth mentioning. Although the new table will happily receive data from the old table, and all the new rows will be inserted following a identity pattern, they will start at 1 and potentially break if the said column is a primary key. Consider running
DBCC CHECKIDENT('<newTableName>')
immediately after switching. See msdn.microsoft.com/en-us/library/ms176057.aspx for more info.
If the table is actively being extended with new rows (meaning you don't have much if any downtime between adding IDENTITY and adding new rows, then instead of DBCC CHECKIDENT
you'll want to manually set the identity seed value in the new table schema to be larger than the largest existing ID in the table, e.g. IDENTITY (2435457, 1)
. You might be able to include both the ALTER TABLE...SWITCH
and the DBCC CHECKIDENT
in a transaction (or not-- haven't tested this) but seems like setting the seed value manually will be easier and safer.
Obviously, if no new rows are being added to the table (or they're only added occasionally, like a daily ETL process) then this race condition won't happen so DBCC CHECKIDENT
is fine.
For the first rule,
Click "greater than", then in the value option box, click on the cell criteria you want it to be less than, than use the format drop-down to select your color.
For the second,
Click "less than", then in the value option box, type "=.9*" and then click the cell criteria, then use the formatting just like step 1.
For the third,
Same as the second, except your formula is =".8*" rather than .9.
Directory pull is available on new android tools. ( I don't know from which version it was added, but its working on latest ADT 21.1 )
adb pull /sdcard/Robotium-Screenshots
pull: building file list...
pull: /sdcard/Robotium-Screenshots/090313-110415.jpg -> ./090313-110415.jpg
pull: /sdcard/Robotium-Screenshots/090313-110412.jpg -> ./090313-110412.jpg
pull: /sdcard/Robotium-Screenshots/090313-110408.jpg -> ./090313-110408.jpg
pull: /sdcard/Robotium-Screenshots/090313-110406.jpg -> ./090313-110406.jpg
pull: /sdcard/Robotium-Screenshots/090313-110404.jpg -> ./090313-110404.jpg
5 files pulled. 0 files skipped.
61 KB/s (338736 bytes in 5.409s)
Work out the solution according to what you want...
There are two things that getResource
/getResourceAsStream()
will get from the class it is called on...
So if you do
this.getClass().getResource("foo.txt");
it will attempt to load foo.txt from the same package as the "this" class and with the class loader of the "this" class. If you put a "/" in front then you are absolutely referencing the resource.
this.getClass().getResource("/x/y/z/foo.txt")
will load the resource from the class loader of "this" and from the x.y.z package (it will need to be in the same directory as classes in that package).
Thread.currentThread().getContextClassLoader().getResource(name)
will load with the context class loader but will not resolve the name according to any package (it must be absolutely referenced)
System.class.getResource(name)
Will load the resource with the system class loader (it would have to be absolutely referenced as well, as you won't be able to put anything into the java.lang package (the package of System).
Just take a look at the source. Also indicates that getResourceAsStream just calls "openStream" on the URL returned from getResource and returns that.
Seems like you are going to have limited options since you want the check to occur before the upload. I think the best you are going to get is to use javascript to validate the extension of the file. You could build a hash of valid extensions and then look to see if the extension of the file being uploaded existed in the hash.
HTML:
<input type="file" name="FILENAME" size="20" onchange="check_extension(this.value,"upload");"/>
<input type="submit" id="upload" name="upload" value="Attach" disabled="disabled" />
Javascript:
var hash = {
'xls' : 1,
'xlsx' : 1,
};
function check_extension(filename,submitId) {
var re = /\..+$/;
var ext = filename.match(re);
var submitEl = document.getElementById(submitId);
if (hash[ext]) {
submitEl.disabled = false;
return true;
} else {
alert("Invalid filename, please select another file");
submitEl.disabled = true;
return false;
}
}
getDerivedStateFromProps is used whenever you want to update state before render and update with the condition of props
GetDerivedStateFromPropd updating the stats value with the help of props value
Small update: Incase if you get below error in regard to node-sass follow the steps given below.
code EPERM
npm ERR! syscall unlink
steps to solve the issue:
with v1.31.1 in RegEx mode the Replace All functionality is broken. clicking that button replaces only one instance
Download latest JDK and install. Go toVS2015 Tools > Options > Xamarin and change the java to the latest JDK location
The source release is the raw, uncompiled code. You could read it yourself. To use it, it must be compiled on your machine. Binary means the code was compiled into a machine language format that the computer can read, then execute. No human can understand the binary file unless its been dissected, or opened with some program that let's you read the executable as code.
Another option is setting the log levels for specific tags:
adb logcat SensorService:S PowerManagerService:S NfcService:S power:I Sensors:E
If you just want to set the log levels for some tags you can do it on a tag by tag basis.
Purpose is different:
The transient
keyword and @Transient
annotation have two different purposes: one deals with serialization and one deals with persistence. As programmers, we often marry these two concepts into one, but this is not accurate in general. Persistence refers to the characteristic of state that outlives the process that created it. Serialization in Java refers to the process of encoding/decoding an object's state as a byte stream.
The transient
keyword is a stronger condition than @Transient
:
If a field uses the transient
keyword, that field will not be serialized when the object is converted to a byte stream. Furthermore, since JPA treats fields marked with the transient
keyword as having the @Transient
annotation, the field will not be persisted by JPA either.
On the other hand, fields annotated @Transient
alone will be converted to a byte stream when the object is serialized, but it will not be persisted by JPA. Therefore, the transient
keyword is a stronger condition than the @Transient
annotation.
Example
This begs the question: Why would anyone want to serialize a field that is not persisted to the application's database? The reality is that serialization is used for more than just persistence. In an Enterprise Java application there needs to be a mechanism to exchange objects between distributed components; serialization provides a common communication protocol to handle this. Thus, a field may hold critical information for the purpose of inter-component communication; but that same field may have no value from a persistence perspective.
For example, suppose an optimization algorithm is run on a server, and suppose this algorithm takes several hours to complete. To a client, having the most up-to-date set of solutions is important. So, a client can subscribe to the server and receive periodic updates during the algorithm's execution phase. These updates are provided using the ProgressReport
object:
@Entity
public class ProgressReport implements Serializable{
private static final long serialVersionUID = 1L;
@Transient
long estimatedMinutesRemaining;
String statusMessage;
Solution currentBestSolution;
}
The Solution
class might look like this:
@Entity
public class Solution implements Serializable{
private static final long serialVersionUID = 1L;
double[][] dataArray;
Properties properties;
}
The server persists each ProgressReport
to its database. The server does not care to persist estimatedMinutesRemaining
, but the client certainly cares about this information. Therefore, the estimatedMinutesRemaining
is annotated using @Transient
. When the final Solution
is located by the algorithm, it is persisted by JPA directly without using a ProgressReport
.
If you have a gridview containing more than one checkbox .... you should try this ....
Object[] o=new Object[6];
for (int i = 0; i < dgverlist.RowCount; i++)
{
for (int j = 2; j < dgverlist.ColumnCount; j++)
{
DataGridViewCheckBoxCell ch1 = new DataGridViewCheckBoxCell();
ch1 = (DataGridViewCheckBoxCell)dgverlist.Rows[i].Cells[j];
if (ch1.Value != null)
{
o[i] = ch1.OwningColumn.HeaderText.ToString();
MessageBox.Show(o[i].ToString());
}
}
}
I resolved my problem, if i configure like follow:
location = /login {
index login2.html;
}
It'll show the 403 error.
[error] 4212#2916: *2 directory index of "D:\path/to/login/" is forbidden
I've tried autoindex on
, but not working.
If i change my configure like this, it works.
location = /login/ {
index login2.html;
}
I think the exact matching, if it's a path should be a directory.
A GridView is a ViewGroup that displays items in two-dimensional scrolling grid. The items in the grid come from the ListAdapter associated with this view.
This is what you'd want to use (keep using). Because a GridView gets its data from a ListAdapter, the only data loaded in memory will be the one displayed on screen. GridViews, much like ListViews reuse and recycle their views for better performance.
Whereas a GridLayout is a layout that places its children in a rectangular grid.
It was introduced in API level 14, and was recently backported in the Support Library. Its main purpose is to solve alignment and performance problems in other layouts. Check out this tutorial if you want to learn more about GridLayout.