The ViewBag
is an System.Dynamic.ExpandoObject
as suggested. The properties in the ViewBag
are essentially KeyValue
pairs, where you access the value by the key. In this sense these are equivalent:
ViewBag.Foo = "Bar";
ViewBag["Foo"] = "Bar";
I updated webpages:Version under in ./Views/Web.Config folder but this setting was also present in web.config in root. Update both or remove from root web.config
I recently had a need to take this one step further, which was to make the property additions in the dynamic object, dynamic themselves, based on user defined entries. The examples here, and from Microsoft's ExpandoObject documentation, do not specifically address adding properties dynamically, but, can be surmised from how you enumerate and delete properties. Anyhow, I thought this might be helpful to someone. Here is an extremely simplified version of how to add truly dynamic properties to an ExpandoObject (ignoring keyword and other handling):
// my pretend dataset
List<string> fields = new List<string>();
// my 'columns'
fields.Add("this_thing");
fields.Add("that_thing");
fields.Add("the_other");
dynamic exo = new System.Dynamic.ExpandoObject();
foreach (string field in fields)
{
((IDictionary<String, Object>)exo).Add(field, field + "_data");
}
// output - from Json.Net NuGet package
textBox1.Text = Newtonsoft.Json.JsonConvert.SerializeObject(exo);
<script type="text/javascript">
$(document).ready(function() {
showWarning('@ViewBag.Message');
});
</script>
You can use ViewBag.PropertyName in javascript like this.
If you are trying to simply return a string to a View, try this:
public string Test()
{
return "test";
}
This will return a view with the word test in it. You can insert some html in the string.
You can also try this:
public ActionResult Index()
{
return Content("<html><b>test</b></html>");
}
Controller :
public ActionResult Refresh(string ID)
{
DetailsViewModel vm = new DetailsViewModel(); // Model
vm.productDetails = _product.GetproductDetails(ID);
/* "productDetails " is a property in "DetailsViewModel"
"GetProductDetails" is a method in "Product" class
"_product" is an interface of "Product" class */
return PartialView("_Details", vm); // Details is a partial view
}
In yore index page you should to have refresh link :
<a href="#" id="refreshItem">Refresh</a>
This Script should be also in your index page:
<script type="text/javascript">
$(function () {
$('a[id=refreshItem]:last').click(function (e) {
e.preventDefault();
var url = MVC.Url.action('Refresh', 'MyController', { itemId: '@(Model.itemProp.itemId )' }); // Refresh is an Action in controller, MyController is a controller name
$.ajax({
type: 'GET',
url: url,
cache: false,
success: function (grid) {
$('#tabItemDetails').html(grid);
clientBehaviors.applyPlugins($("#tabProductDetails")); // "tabProductDetails" is an id of div in your "Details partial view"
}
});
});
});
viewdata: is a dictionary used to store data between View and controller , u need to cast the view data object to its corresponding model in the view to be able to retrieve data from it ...
ViewBag: is a dynamic property similar in its working to the view data, However it is better cuz it doesn't need to be casted to its corressponding model before using it in the view ...
@Html.DropDownListFor(m => m.Departments.id, (SelectList)ViewBag.Department, "Select", htmlAttributes: new { @class = "form-control" })
I had the problem that I wanted to use my ViewBag to send a list of elements through a RenderPartial as the object, and to this you have to do the cast first, I had to cast the ViewBag in the controller and in the View too.
In the Controller:
ViewBag.visitList = (List<CLIENTES_VIP_DB.VISITAS.VISITA>)
visitaRepo.ObtenerLista().Where(m => m.Id_Contacto == id).ToList()
In the View:
List<CLIENTES_VIP_DB.VISITAS.VISITA> VisitaList = (List<CLIENTES_VIP_DB.VISITAS.VISITA>)ViewBag.visitList ;
I think there is no fixed way to solve this problem since it might be caused by different reason. I also had this problem last week, I don't know when and exactly what cause this problem, only when I run it on simulator with Xcode or try to install it onto the phone, then it reports such kind of error, But when I run it with react-native run-ios with terminal, there is no problem.
I checked all the ways posted on the internet, like renew certificate, change settings in Xcode (all of ways mentions above), actually all of settings in Xcode were already set as it requested before, none of ways works for me. Until this morning when I delete the pods and reinstall, the error finally gonna after a week. If you are also using cocoapod and then error was just show up without any specific reason, maybe you can try my way.
Check that ruby interpreter is already installed and try "ruby setup.rb" in command prompt.
In regards to the question in your comment:
Assuming that you've previously bound your function to the click event of the radio button, add this to your $(document).ready
function:
$('#[radioButtonOptionID]').click()
Without a parameter, that simulates the click event.
This is what i did for merging two datatables and bind the final result to the gridview
DataTable dtTemp=new DataTable();
for (int k = 0; k < GridView2.Rows.Count; k++)
{
string roomno = GridView2.Rows[k].Cells[1].Text;
DataTable dtx = GetRoomDetails(chk, roomno, out msg);
if (dtx.Rows.Count > 0)
{
dtTemp.Merge(dtx);
dtTemp.AcceptChanges();
}
}
you can try something like this
set the parent to rotate
and the image to scale
so that the rotate
and scale
time can be different
div {_x000D_
position: absolute;_x000D_
top: 50%;_x000D_
left: 50%;_x000D_
width: 120px;_x000D_
height: 120px;_x000D_
margin: -60px 0 0 -60px;_x000D_
-webkit-animation: spin 2s linear infinite;_x000D_
}_x000D_
.image {_x000D_
position: absolute;_x000D_
top: 50%;_x000D_
left: 50%;_x000D_
width: 120px;_x000D_
height: 120px;_x000D_
margin: -60px 0 0 -60px;_x000D_
-webkit-animation: scale 4s linear infinite;_x000D_
}_x000D_
@-webkit-keyframes spin {_x000D_
100% {_x000D_
transform: rotate(180deg);_x000D_
}_x000D_
}_x000D_
@-webkit-keyframes scale {_x000D_
100% {_x000D_
transform: scale(2);_x000D_
}_x000D_
}
_x000D_
<div>_x000D_
<img class="image" src="http://makeameme.org/media/templates/120/grumpy_cat.jpg" alt="" width="120" height="120" />_x000D_
</div>
_x000D_
The following appears to work:
table td {
vertical-align: middle !important;
}
You can apply to a specific table as well like so:
#some_table td {
vertical-align: middle !important;
}
The cool thing about anaconda is, that you can manage virtual environments for several projects. Those also have the benefit of keeping several python installations apart. This could be a problem when several installations of a module or package are interfering with each other.
Try the following:
user@machine:~$ conda create -n pandas_env python=2.7
user@machine:~$ source activate pandas_env
on Linux/OSX or $ activate pandas_env
on Windows. On Linux the active environment is shown in parenthesis in front of the user name in the shell. (I am not sure how windows handles this, but you can see it by typing $ conda info -e
. The one with the * next to it is the active one)(pandas_env)user@machine:~$ conda list
to show a list of all installed modules.(pandas_env)user@machine:~$ conda install pandas
, as @Fiabetto suggested.(pandas_env)user@machine:~$ python
and try to load pandas again. Note that now you are working in a python environment, that only knows the modules installed inside the pandas_env
environment. Every time you want to use it you have to activate the environment. This might feel a little bit clunky at first, but really shines once you have to manage different versions of python (like 2.7 or 3.4) or you need a specific version of a module (like numpy 1.7).
If this still does not work you have several options:
Check if the right pandas module is found:
`(pandas_env)user@machine:~$ python`
Python 2.7.10 |Continuum Analytics, Inc.| (default, Sep 15 2015, 14:50:01)
>>> import imp
>>> imp.find_module("pandas")
(None, '/path/to/miniconda3/envs/foo/lib/python2.7/site-packages/pandas', ('', '', 5))
# See what this returns on your system.
Reinstall pandas in your environment with $ conda install -f pandas
. This might help if you files have been corrupted somehow.
pip
). To do this, create a new environment like above (make sure to pick a different name to avoid clashes here) but replace point 4 by (pandas_env)user@machine:~$ pip install pandas
.This will get you the timezone as a PHP variable. I wrote a function using jQuery and PHP. This is tested, and does work!
On the PHP page where you are want to have the timezone as a variable, have this snippet of code somewhere near the top of the page:
<?php
session_start();
$timezone = $_SESSION['time'];
?>
This will read the session variable "time", which we are now about to create.
On the same page, in the <head>
section, first of all you need to include jQuery:
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
Also in the <head>
section, paste this jQuery:
<script type="text/javascript">
$(document).ready(function() {
if("<?php echo $timezone; ?>".length==0){
var visitortime = new Date();
var visitortimezone = "GMT " + -visitortime.getTimezoneOffset()/60;
$.ajax({
type: "GET",
url: "http://example.com/timezone.php",
data: 'time='+ visitortimezone,
success: function(){
location.reload();
}
});
}
});
</script>
You may or may not have noticed, but you need to change the url to your actual domain.
One last thing. You are probably wondering what the heck timezone.php is. Well, it is simply this: (create a new file called timezone.php and point to it with the above url)
<?php
session_start();
$_SESSION['time'] = $_GET['time'];
?>
If this works correctly, it will first load the page, execute the JavaScript, and reload the page. You will then be able to read the $timezone variable and use it to your pleasure! It returns the current UTC/GMT time zone offset (GMT -7) or whatever timezone you are in.
You can read more about this on my blog
If both arrays are in the correct order; where each item corresponds to its associated member identifier then you can simply use.
var merge = _.merge(arr1, arr2);
Which is the short version of:
var merge = _.chain(arr1).zip(arr2).map(function(item) {
return _.merge.apply(null, item);
}).value();
Or, if the data in the arrays is not in any particular order, you can look up the associated item by the member value.
var merge = _.map(arr1, function(item) {
return _.merge(item, _.find(arr2, { 'member' : item.member }));
});
You can easily convert this to a mixin. See the example below:
_.mixin({_x000D_
'mergeByKey' : function(arr1, arr2, key) {_x000D_
var criteria = {};_x000D_
criteria[key] = null;_x000D_
return _.map(arr1, function(item) {_x000D_
criteria[key] = item[key];_x000D_
return _.merge(item, _.find(arr2, criteria));_x000D_
});_x000D_
}_x000D_
});_x000D_
_x000D_
var arr1 = [{_x000D_
"member": 'ObjectId("57989cbe54cf5d2ce83ff9d6")',_x000D_
"bank": 'ObjectId("575b052ca6f66a5732749ecc")',_x000D_
"country": 'ObjectId("575b0523a6f66a5732749ecb")'_x000D_
}, {_x000D_
"member": 'ObjectId("57989cbe54cf5d2ce83ff9d8")',_x000D_
"bank": 'ObjectId("575b052ca6f66a5732749ecc")',_x000D_
"country": 'ObjectId("575b0523a6f66a5732749ecb")'_x000D_
}];_x000D_
_x000D_
var arr2 = [{_x000D_
"member": 'ObjectId("57989cbe54cf5d2ce83ff9d8")',_x000D_
"name": 'yyyyyyyyyy',_x000D_
"age": 26_x000D_
}, {_x000D_
"member": 'ObjectId("57989cbe54cf5d2ce83ff9d6")',_x000D_
"name": 'xxxxxx',_x000D_
"age": 25_x000D_
}];_x000D_
_x000D_
var arr3 = _.mergeByKey(arr1, arr2, 'member');_x000D_
_x000D_
document.body.innerHTML = JSON.stringify(arr3, null, 4);
_x000D_
body { font-family: monospace; white-space: pre; }
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.14.0/lodash.min.js"></script>
_x000D_
How about Application.EnableCancelKey - Use the Esc button
On Error GoTo handleCancel
Application.EnableCancelKey = xlErrorHandler
MsgBox "This may take a long time: press ESC to cancel"
For x = 1 To 1000000 ' Do something 1,000,000 times (long!)
' do something here
Next x
handleCancel:
If Err = 18 Then
MsgBox "You cancelled"
End If
Snippet from http://msdn.microsoft.com/en-us/library/aa214566(office.11).aspx
isset('user.permissions.saveProject', args);
function isset(string, context) {
try {
var arr = string.split('.');
var checkObj = context || window;
for (var i in arr) {
if (checkObj[arr[i]] === undefined) return false;
checkObj = checkObj[arr[i]];
}
return true;
} catch (e) {
return false;
}
}
This is because the content of
<p myHighlight>Highlight me!</p>
has not been rendered when the constructor of the HighlightDirective is called so there is no content yet.
If you implement the AfterContentInit hook you will get the element and its content.
import { Directive, ElementRef, AfterContentInit } from '@angular/core';
@Directive({ selector: '[myHighlight]' })
export class HighlightDirective {
constructor(private el: ElementRef) {
//el.nativeElement.style.backgroundColor = 'yellow';
}
ngAfterContentInit(){
//you can get to the element content here
//this.el.nativeElement
}
}
This should work:
/^((?!PART).)*$/
If you only wanted to exclude it from the beginning of the line (I know you don't, but just FYI), you could use this:
/^(?!PART)/
The (?!...)
syntax is a negative lookahead, which I've always found tough to explain. Basically, it means "whatever follows this point must not match the regular expression /PART/
." The site I've linked explains this far better than I can, but I'll try to break this down:
^ #Start matching from the beginning of the string.
(?!PART) #This position must not be followed by the string "PART".
. #Matches any character except line breaks (it will include those in single-line mode).
$ #Match all the way until the end of the string.
The ((?!xxx).)*
idiom is probably hardest to understand. As we saw, (?!PART)
looks at the string ahead and says that whatever comes next can't match the subpattern /PART/
. So what we're doing with ((?!xxx).)*
is going through the string letter by letter and applying the rule to all of them. Each character can be anything, but if you take that character and the next few characters after it, you'd better not get the word PART.
The ^
and $
anchors are there to demand that the rule be applied to the entire string, from beginning to end. Without those anchors, any piece of the string that didn't begin with PART would be a match. Even PART itself would have matches in it, because (for example) the letter A isn't followed by the exact string PART.
Since we do have ^
and $
, if PART were anywhere in the string, one of the characters would match (?=PART).
and the overall match would fail. Hope that's clear enough to be helpful.
You can fix this issue by adding a project ext property googlePlayServicesVersion
to app/App_Resources/Android/app.gradle
file like this:
project.ext {
googlePlayServicesVersion = "+"
}
In the Divi Theme Documentation, it says that the theme comes with access to 'ePanel' which also has an 'Integration' section.
You should be able to add this code:
<script>
$( ".et-pb-icon" ).click(function() {
$( this ).toggleClass( "active" );
});
</script>
into the the box that says 'Add code to the head of your blog' under the 'Integration' tab, which should get the jQuery working.
Then, you should be able to style your class to what ever you need.
I had a very messy cody that loaded facebook's javascript via AJAX and i had to make sure that the js file has been completely loaded before calling FB.init this seem to work for me
$jQuery.load( document.location.protocol + '//connect.facebook.net/en_US/all.js',
function (obj) {
FB.init({
appId : 'YOUR APP ID',
status : true, // check login status
cookie : true, // enable cookies to allow the server to access the session
xfbml : true // parse XFBML
});
//ANy other FB.related javascript here
});
This code uses jquery to load the javascript and do the function callback onLoad of the javascript. it's a lot less messier than having creating an onLoad eventlistener for the block which in the end didn't work very well on IE6, 7 and 8
Having included a dependency on spring-boot-configuration-processor
in build.gradle
:
annotationProcessor "org.springframework.boot:spring-boot-configuration-processor:2.4.1"
the only thing that worked for me, besides invalidating caches of IntelliJ and restarting, is
Reload All Gradle Projects
Clean
Build
.bak files are database backups. You can restore the backup with the method below:
How to: Restore a Database Backup (SQL Server Management Studio)
Building on Alexei's comment. This should work for DST too.
import time
import datetime
def utc_to_local(dt):
if time.localtime().tm_isdst:
return dt - datetime.timedelta(seconds = time.altzone)
else:
return dt - datetime.timedelta(seconds = time.timezone)
sudo snap install androidsdk
You can use the sdkmanager to perform the following tasks.
androidsdk --list [options]
androidsdk packages [options]
The packages argument is an SDK-style path as shown with the --list command, wrapped in quotes (for example, "build-tools;29.0.0" or "platforms;android-28"). You can pass multiple package paths, separated with a space, but they must each be wrapped in their own set of quotes.
For example, here's how to install the latest platform tools (which includes adb and fastboot) and the SDK tools for API level 28:
androidsdk "platform-tools" "platforms;android-28"
Alternatively, you can pass a text file that specifies all packages:
androidsdk --package_file=package_file [options]
The package_file argument is the location of a text file in which each line is an SDK-style path of a package to install (without quotes).
To uninstall, simply add the --uninstall flag:
androidsdk --uninstall packages [options]
androidsdk --uninstall --package_file=package_file [options]
Update all installed packages
androidsdk --update [options]
androidsdk it is snap wraper of sdkmanager all options of sdkmanager work with androidsdk
Location of installed android sdk files : /home/user/AndroidSDK
See all sdkmanager options in google documentation
You could use wmic with the /locale option
call wmic /locale:ms_409 service where (name="wsearch") get state /value | findstr State=Running
if %ErrorLevel% EQU 0 (
echo Running
) else (
echo Not running
)
{% for days in days_list %}
<h2># Day {{ forloop.counter }} - From {{ days.from_location }} to {{ days.to_location }}</h2>
{% endfor %}
or if you want to start from 0
{% for days in days_list %}
<h2># Day {{ forloop.counter0 }} - From {{ days.from_location }} to {{ days.to_location }}</h2>
{% endfor %}
After spending few hours, adding the following css class fixed my issue.
Work with Bootstrap 3.0.*
.tnav .navbar .container { height: 28px; }
Work with Bootstrap 3.3.4
.navbar-nav > li > a, .navbar-brand {
padding-top:4px !important;
padding-bottom:0 !important;
height: 28px;
}
.navbar {min-height:28px !important;}
Update Complete code to customize and decrease height of navbar with screenshot.
CSS:
/* navbar */
.navbar-primary .navbar { background:#9f58b5; border-bottom:none; }
.navbar-primary .navbar .nav > li > a {color: #501762;}
.navbar-primary .navbar .nav > li > a:hover {color: #fff; background-color: #8e49a3;}
.navbar-primary .navbar .nav .active > a,.navbar .nav .active > a:hover {color: #fff; background-color: #501762;}
.navbar-primary .navbar .nav li > a .caret, .tnav .navbar .nav li > a:hover .caret {border-top-color: #fff;border-bottom-color: #fff;}
.navbar-primary .navbar .nav > li.dropdown.open.active > a:hover {}
.navbar-primary .navbar .nav > li.dropdown.open > a {color: #fff;background-color: #9f58b5;border-color: #fff;}
.navbar-primary .navbar .nav > li.dropdown.open.active > a:hover .caret, .tnav .navbar .nav > li.dropdown.open > a .caret {border-top-color: #fff;}
.navbar-primary .navbar .navbar-brand {color:#fff;}
.navbar-primary .navbar .nav.pull-right {margin-left: 10px; margin-right: 0;}
.navbar-xs .navbar-primary .navbar { min-height:28px; height: 28px; }
.navbar-xs .navbar-primary .navbar .navbar-brand{ padding: 0px 12px;font-size: 16px;line-height: 28px; }
.navbar-xs .navbar-primary .navbar .navbar-nav > li > a { padding-top: 0px; padding-bottom: 0px; line-height: 28px; }
.navbar-sm .navbar-primary .navbar { min-height:40px; height: 40px; }
.navbar-sm .navbar-primary .navbar .navbar-brand{ padding: 0px 12px;font-size: 16px;line-height: 40px; }
.navbar-sm .navbar-primary .navbar .navbar-nav > li > a { padding-top: 0px; padding-bottom: 0px; line-height: 40px; }
Usage Code:
<div class="navbar-xs">
<div class="navbar-primary">
<nav class="navbar navbar-static-top" role="navigation">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-8">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Brand</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-8">
<ul class="nav navbar-nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</div><!-- /.navbar-collapse -->
</nav>
</div>
</div>
This is what worked for me: From Visual Studio click on
Tools --> NuGet Package Manager --> Package Manager Console
Then you can run Add-Migration
, for example:
Add-Migration InitialCreate
Have a look at using FileInfo.Name Property
something like
string[] files = Directory.GetFiles(dir);
for (int iFile = 0; iFile < files.Length; iFile++)
string fn = new FileInfo(files[iFile]).Name;
Also have a look at using DirectoryInfo Class and FileInfo Class
Without any server side solution, Theres is only one way in which a secure page can get something from a insecure page/request and that's thought postMessage and a popup
I said popup cuz the site isn't allowed to mix content. But a popup isn't really mixing. It has it's own window but are still able to communicate with the opener with postMessage.
So you can open a new http-page with window.open(...)
and have that making the request for you (that is if the site is using CORS as well)
XDomain came to mind when i wrote this but here is a modern approach using the new fetch api, the advantage is the streaming of large files, the downside is that it won't work in all browser
You put this proxy script on any http page
onmessage = evt => {
const port = evt.ports[0]
fetch(...evt.data).then(res => {
// the response is not clonable
// so we make a new plain object
const obj = {
bodyUsed: false,
headers: [...res.headers],
ok: res.ok,
redirected: res.redurected,
status: res.status,
statusText: res.statusText,
type: res.type,
url: res.url
}
port.postMessage(obj)
// Pipe the request to the port (MessageChannel)
const reader = res.body.getReader()
const pump = () => reader.read()
.then(({value, done}) => done
? port.postMessage(done)
: (port.postMessage(value), pump())
)
// start the pipe
pump()
})
}
Then you open a popup window in your https page (note that you can only do this on a user interaction event or else it will be blocked)
window.popup = window.open(http://.../proxy.html)
create your utility function
function xfetch(...args) {
// tell the proxy to make the request
const ms = new MessageChannel
popup.postMessage(args, '*', [ms.port1])
// Resolves when the headers comes
return new Promise((rs, rj) => {
// First message will resolve the Response Object
ms.port2.onmessage = ({data}) => {
const stream = new ReadableStream({
start(controller) {
// Change the onmessage to pipe the remaning request
ms.port2.onmessage = evt => {
if (evt.data === true) // Done?
controller.close()
else // enqueue the buffer to the stream
controller.enqueue(evt.data)
}
}
})
// Construct a new response with the
// response headers and a stream
rs(new Response(stream, data))
}
})
}
And make the request like you normally do with the fetch api
xfetch('http://httpbin.org/get')
.then(res => res.text())
.then(console.log)
The SSL errors are often thrown by network management software such as Cyberroam.
To answer your question,
you will have to enter badidea into Chrome every time you visit a website.
You might at times have to enter it more than once, as the site may try to pull in various resources before load, hence causing multiple SSL errors
Understand does a very good job of creating call graphs.
From: http://www.danrigsby.com/blog/index.php/2008/06/17/rest-and-max-url-size/
(number/10**x)%10
You can use this in a loop, where number is the full number, x is each iteration of the loop (0,1,2,3,...,n) with n being the stop point. x = 0 gives the ones place, x = 1 gives the tens, x = 2 gives the hundreds, and so on. Keep in mind that this will give the value of the digits from right to left, so this might not be the for an ISBN but it will still isolate each digit.
If you are using windows os, you can download your desired opencv unofficial windows binary from here, and type
something like pip install opencv_python-2.4.13.2-cp27-cp27m-win_amd64.whl
in the directory of binary file.
You can use VARRAY for a fixed-size array:
declare
type array_t is varray(3) of varchar2(10);
array array_t := array_t('Matt', 'Joanne', 'Robert');
begin
for i in 1..array.count loop
dbms_output.put_line(array(i));
end loop;
end;
Or TABLE for an unbounded array:
...
type array_t is table of varchar2(10);
...
The word "table" here has nothing to do with database tables, confusingly. Both methods create in-memory arrays.
With either of these you need to both initialise and extend the collection before adding elements:
declare
type array_t is varray(3) of varchar2(10);
array array_t := array_t(); -- Initialise it
begin
for i in 1..3 loop
array.extend(); -- Extend it
array(i) := 'x';
end loop;
end;
The first index is 1 not 0.
if ($string =~ m/something/) {
# Do work
}
Where something
is a regular expression.
Also with dict
a = []
b = {1:'one'}
a.append(dict(b))
print a
b[1]='iuqsdgf'
print a
result
[{1: 'one'}]
[{1: 'one'}]
string s = "9quali52ty3";
foreach(char c in s)
{
Console.WriteLine((int)c);
}
<ui:include>
Most basic way is <ui:include>
. The included content must be placed inside <ui:composition>
.
Kickoff example of the master page /page.xhtml
:
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title>Include demo</title>
</h:head>
<h:body>
<h1>Master page</h1>
<p>Master page blah blah lorem ipsum</p>
<ui:include src="/WEB-INF/include.xhtml" />
</h:body>
</html>
The include page /WEB-INF/include.xhtml
(yes, this is the file in its entirety, any tags outside <ui:composition>
are unnecessary as they are ignored by Facelets anyway):
<ui:composition
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h2>Include page</h2>
<p>Include page blah blah lorem ipsum</p>
</ui:composition>
This needs to be opened by /page.xhtml
. Do note that you don't need to repeat <html>
, <h:head>
and <h:body>
inside the include file as that would otherwise result in invalid HTML.
You can use a dynamic EL expression in <ui:include src>
. See also How to ajax-refresh dynamic include content by navigation menu? (JSF SPA).
<ui:define>
/<ui:insert>
A more advanced way of including is templating. This includes basically the other way round. The master template page should use <ui:insert>
to declare places to insert defined template content. The template client page which is using the master template page should use <ui:define>
to define the template content which is to be inserted.
Master template page /WEB-INF/template.xhtml
(as a design hint: the header, menu and footer can in turn even be <ui:include>
files):
<!DOCTYPE html>
<html lang="en"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<h:head>
<title><ui:insert name="title">Default title</ui:insert></title>
</h:head>
<h:body>
<div id="header">Header</div>
<div id="menu">Menu</div>
<div id="content"><ui:insert name="content">Default content</ui:insert></div>
<div id="footer">Footer</div>
</h:body>
</html>
Template client page /page.xhtml
(note the template
attribute; also here, this is the file in its entirety):
<ui:composition template="/WEB-INF/template.xhtml"
xmlns="http://www.w3.org/1999/xhtml"
xmlns:f="http://xmlns.jcp.org/jsf/core"
xmlns:h="http://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets">
<ui:define name="title">
New page title here
</ui:define>
<ui:define name="content">
<h1>New content here</h1>
<p>Blah blah</p>
</ui:define>
</ui:composition>
This needs to be opened by /page.xhtml
. If there is no <ui:define>
, then the default content inside <ui:insert>
will be displayed instead, if any.
<ui:param>
You can pass parameters to <ui:include>
or <ui:composition template>
by <ui:param>
.
<ui:include ...>
<ui:param name="foo" value="#{bean.foo}" />
</ui:include>
<ui:composition template="...">
<ui:param name="foo" value="#{bean.foo}" />
...
</ui:composition >
Inside the include/template file, it'll be available as #{foo}
. In case you need to pass "many" parameters to <ui:include>
, then you'd better consider registering the include file as a tagfile, so that you can ultimately use it like so <my:tagname foo="#{bean.foo}">
. See also When to use <ui:include>, tag files, composite components and/or custom components?
You can even pass whole beans, methods and parameters via <ui:param>
. See also JSF 2: how to pass an action including an argument to be invoked to a Facelets sub view (using ui:include and ui:param)?
The files which aren't supposed to be publicly accessible by just entering/guessing its URL, need to be placed in /WEB-INF
folder, like as the include file and the template file in above example. See also Which XHTML files do I need to put in /WEB-INF and which not?
There doesn't need to be any markup (HTML code) outside <ui:composition>
and <ui:define>
. You can put any, but they will be ignored by Facelets. Putting markup in there is only useful for web designers. See also Is there a way to run a JSF page without building the whole project?
The HTML5 doctype is the recommended doctype these days, "in spite of" that it's a XHTML file. You should see XHTML as a language which allows you to produce HTML output using a XML based tool. See also Is it possible to use JSF+Facelets with HTML 4/5? and JavaServer Faces 2.2 and HTML5 support, why is XHTML still being used.
CSS/JS/image files can be included as dynamically relocatable/localized/versioned resources. See also How to reference CSS / JS / image resource in Facelets template?
You can put Facelets files in a reusable JAR file. See also Structure for multiple JSF projects with shared code.
For real world examples of advanced Facelets templating, check the src/main/webapp
folder of Java EE Kickoff App source code and OmniFaces showcase site source code.
Recently I was learning about chrono library and thought of implementing a sleep function on my own. Here is the code,
#include <cmath>
#include <chrono>
template <typename rep = std::chrono::seconds::rep,
typename period = std::chrono::seconds::period>
void sleep(std::chrono::duration<rep, period> sec)
{
using sleep_duration = std::chrono::duration<long double, std::nano>;
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
long double elapsed_time =
std::chrono::duration_cast<sleep_duration>(end - start).count();
long double sleep_time =
std::chrono::duration_cast<sleep_duration>(sec).count();
while (std::isgreater(sleep_time, elapsed_time)) {
end = std::chrono::steady_clock::now();
elapsed_time = std::chrono::duration_cast<sleep_duration>(end - start).count();
}
}
We can use it with any std::chrono::duration
type (By default it takes std::chrono::seconds
as argument). For example,
#include <cmath>
#include <chrono>
template <typename rep = std::chrono::seconds::rep,
typename period = std::chrono::seconds::period>
void sleep(std::chrono::duration<rep, period> sec)
{
using sleep_duration = std::chrono::duration<long double, std::nano>;
std::chrono::steady_clock::time_point start = std::chrono::steady_clock::now();
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
long double elapsed_time =
std::chrono::duration_cast<sleep_duration>(end - start).count();
long double sleep_time =
std::chrono::duration_cast<sleep_duration>(sec).count();
while (std::isgreater(sleep_time, elapsed_time)) {
end = std::chrono::steady_clock::now();
elapsed_time = std::chrono::duration_cast<sleep_duration>(end - start).count();
}
}
using namespace std::chrono_literals;
int main (void) {
std::chrono::steady_clock::time_point start1 = std::chrono::steady_clock::now();
sleep(5s); // sleep for 5 seconds
std::chrono::steady_clock::time_point end1 = std::chrono::steady_clock::now();
std::cout << std::setprecision(9) << std::fixed;
std::cout << "Elapsed time was: " << std::chrono::duration_cast<std::chrono::seconds>(end1-start1).count() << "s\n";
std::chrono::steady_clock::time_point start2 = std::chrono::steady_clock::now();
sleep(500000ns); // sleep for 500000 nano seconds/500 micro seconds
// same as writing: sleep(500us)
std::chrono::steady_clock::time_point end2 = std::chrono::steady_clock::now();
std::cout << "Elapsed time was: " << std::chrono::duration_cast<std::chrono::microseconds>(end2-start2).count() << "us\n";
return 0;
}
For more information, visit https://en.cppreference.com/w/cpp/header/chrono
and see this cppcon talk of Howard Hinnant, https://www.youtube.com/watch?v=P32hvk8b13M.
He has two more talks on chrono library. And you can always use the library function, std::this_thread::sleep_for
Note: Outputs may not be accurate. So, don't expect it to give exact timings.
Suggestions:
for example,
type
functionname( arguments )
{
if (something)
{
do stuff
}
else
{
do other stuff
}
switch (value)
{
case 'a':
astuff
break;
case 'b':
bstuff
//fallthrough //always comment fallthrough as intentional
case 'c':
break;
default: //always consider default, and handle it explicitly
break;
}
while ( the lights are on )
{
if ( something happened )
{
run around in circles
if ( you are scared ) //yeah, much more than 3-4 levels of indent are too many!
{
scream and shout
}
}
}
return typevalue; //always return something, you'll thank me later
}
On Arch Linux, the following works really great (should work on all systemd-based distros):
Create a systemd user service, by putting the following to ~/.config/systemd/user/ssh-agent.service
:
[Unit]
Description=SSH key agent
[Service]
Type=simple
Environment=SSH_AUTH_SOCK=%t/ssh-agent.socket
ExecStart=/usr/bin/ssh-agent -D -a $SSH_AUTH_SOCK
[Install]
WantedBy=default.target
Setup shell to have an environment variable for the socket (.bash_profile, .zshrc, ...
):
export SSH_AUTH_SOCK="$XDG_RUNTIME_DIR/ssh-agent.socket"
Enable the service, so it'll be started automatically on login, and start it:
systemctl --user enable ssh-agent
systemctl --user start ssh-agent
Add the following configuration setting to your local ssh config file ~/.ssh/config
(this works since SSH 7.2):
AddKeysToAgent yes
This will instruct the ssh client to always add the key to a running agent, so there's no need to ssh-add it beforehand.
Apply style="text-align: right"
to the input tag. This will allow entry to be right-justified, and (at least in Firefox 3, IE 7 and Safari) will even appear to flow from the right.
file = request.FILES['filename']
file.name # Gives name
file.content_type # Gives Content type text/html etc
file.size # Gives file's size in byte
file.read() # Reads file
NATIVE is Non access modifier.it can be applied only to METHOD. It indicates the PLATFORM-DEPENDENT implementation of method or code.
This worked for me..
I was trying to automate multiple telnet logins which require a username and password. The telnet session needs to run in the background indefinitely since I am saving logs from different servers to my machine.
telnet.sh automates telnet login using the 'expect' command. More info can be found here: http://osix.net/modules/article/?id=30
telnet.sh
#!/usr/bin/expect
set timeout 20
set hostName [lindex $argv 0]
set userName [lindex $argv 1]
set password [lindex $argv 2]
spawn telnet $hostName
expect "User Access Verification"
expect "Username:"
send "$userName\r"
expect "Password:"
send "$password\r";
interact
sample_script.sh is used to create a background process for each of the telnet sessions by running telnet.sh. More information can be found in the comments section of the code.
sample_script.sh
#!/bin/bash
#start screen in detached mode with session-name 'default_session'
screen -dmS default_session -t screen_name
#save the generated logs in a log file 'abc.log'
screen -S default_session -p screen_name -X stuff "script -f /tmp/abc.log $(printf \\r)"
#start the telnet session and generate logs
screen -S default_session -p screen_name -X stuff "expect telnet.sh hostname username password $(printf \\r)"
As per Wikipedia's list of punctuations I had to build the following regex which detects punctuations :
[\.’'\[\](){}??:,??-–—-…!.‹›«»-\-?‘’“”'";//·\&*@\•^†‡°”¡¿?#?÷׺ª%‰+-=?¶'"?§~_|?¦©?®?™¤???¢¢?$????€ƒ??????M??P??£?????????¥]
mainWB.Sheets.Add(After:=Sheets(Sheets.Count)).Name = new_sheet_name
should probably be
mainWB.Sheets.Add(After:=mainWB.Sheets(mainWB.Sheets.Count)).Name = new_sheet_name
Try this:
x = a > b and 10 or 11
This is a sample of execution:
>>> a,b=5,7
>>> x = a > b and 10 or 11
>>> print x
11
After years of using XAMPP finally I've given up, and started looking for alternatives. XAMPP has not received any updates for quite a while and it kept breaking down once every two weeks.
The one I've just found and I could absolutely recommend is The Uniform Server
It's really frequently updated, has much more emphasis on security and looks like a much more mature project compared to XAMPP.
They have a wiki where they list all the latest versions of packages. As the time of writing, their newest release is only 4 days old!
Versions in Uniform Server as of today:
Versions in XAMPP as of today:
You can also use DEV_RANDOM, where 128 = 1/2 the generated token length. Code below generates 256 token.
$token = bin2hex(mcrypt_create_iv(128, MCRYPT_DEV_RANDOM));
dict.iteritems
was removed because dict.items
now does the thing dict.iteritems
did in python 2.x and even improved it a bit by making it an itemview
.
Git is just trying to guess for you what you are trying to do. It is making every attempt to preserve unbroken history. Of course, it is not perfect. So git mv
allows you to be explicit with your intention and to avoid some errors.
Consider this example. Starting with an empty repo,
git init
echo "First" >a
echo "Second" >b
git add *
git commit -m "initial commit"
mv a c
mv b a
git status
Result:
# On branch master
# Changes not staged for commit:
# (use "git add/rm <file>..." to update what will be committed)
# (use "git checkout -- <file>..." to discard changes in working directory)
#
# modified: a
# deleted: b
#
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# c
no changes added to commit (use "git add" and/or "git commit -a")
Autodetection failed :( Or did it?
$ git add *
$ git commit -m "change"
$ git log c
commit 0c5425be1121c20cc45df04734398dfbac689c39
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:24:56 2013 -0400
change
and then
$ git log --follow c
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:24:56 2013 -0400
change
commit 50c2a4604a27be2a1f4b95399d5e0f96c3dbf70a
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:24:45 2013 -0400
initial commit
Now try instead (remember to delete the .git
folder when experimenting):
git init
echo "First" >a
echo "Second" >b
git add *
git commit -m "initial commit"
git mv a c
git status
So far so good:
# On branch master
# Changes to be committed:
# (use "git reset HEAD <file>..." to unstage)
#
# renamed: a -> c
git mv b a
git status
Now, nobody is perfect:
# On branch master
# Changes to be committed:
# (use "git reset HEAD <file>..." to unstage)
#
# modified: a
# deleted: b
# new file: c
#
Really? But of course...
git add *
git commit -m "change"
git log c
git log --follow c
...and the result is the same as above: only --follow
shows the full history.
Now, be careful with renaming, as either option can still produce weird effects. Example:
git init
echo "First" >a
git add a
git commit -m "initial a"
echo "Second" >b
git add b
git commit -m "initial b"
git mv a c
git commit -m "first move"
git mv b a
git commit -m "second move"
git log --follow a
commit 81b80f5690deec1864ebff294f875980216a059d
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:35:58 2013 -0400
second move
commit f284fba9dc8455295b1abdaae9cc6ee941b66e7f
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:34:54 2013 -0400
initial b
Contrast it with:
git init
echo "First" >a
git add a
git commit -m "initial a"
echo "Second" >b
git add b
git commit -m "initial b"
git mv a c
git mv b a
git commit -m "both moves at the same time"
git log --follow a
Result:
commit 84bf29b01f32ea6b746857e0d8401654c4413ecd
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:37:13 2013 -0400
both moves at the same time
commit ec0de3c5358758ffda462913f6e6294731400455
Author: Sergey Orshanskiy <*****@gmail.com>
Date: Sat Oct 12 00:36:52 2013 -0400
initial a
Ups... Now the history is going back to initial a instead of initial b, which is wrong. So when we did two moves at a time, Git became confused and did not track the changes properly. By the way, in my experiments the same happened when I deleted/created files instead of using git mv
. Proceed with care; you've been warned...
You have to select the sheet before you can select the range.
I've simplified the example to isolate the problem. Try this:
Option Explicit
Sub RangeError()
Dim sourceBook As Workbook
Dim sourceSheet As Worksheet
Dim sourceSheetSum As Worksheet
Set sourceBook = ActiveWorkbook
Set sourceSheet = sourceBook.Sheets("Sheet1")
Set sourceSheetSum = sourceBook.Sheets("Sheet2")
sourceSheetSum.Select
sourceSheetSum.Range("C3").Select 'THIS IS THE PROBLEM LINE
End Sub
Replace Sheet1 and Sheet2 with your sheet names.
IMPORTANT NOTE: Using Variants is dangerous and can lead to difficult-to-kill bugs. Use them only if you have a very specific reason for doing so.
Git will recognise the file from the contents, rather than seeing it as a new untracked file
That's where you went wrong.
It's only after you add the file, that git will recognize it from content.
<span style='color:blue '> your message/text </span>
So here it is a perfect html css style entry inside a notebook ipynb file.
Of course you can choose your favourite color here and then your text.
I had the same problem :) Verify the "Source code" folder on the "Solution Explorer", if it doesn't contain any "source code" file then :
Right click on "Source code" > Add > Existing Item > Choose the file You want to build and run.
Good luck ;)
=if([Logical Test 1],[Action 1],if([Logical Test 2],[Action 1],if([Logical Test 3],[Action 3],[Value if all logical tests return false])))
Replace the components in the square brackets as necessary.
now
returns the current date and time
The need for C++ delegate implementations are a long lasting embarassment to the C++ community. Every C++ programmer would love to have them, so they eventually use them despite the facts that:
std::function()
uses heap operations (and is out of reach for serious embedded programming).
All other implementations make concessions towards either portability or standard conformity to larger or lesser degrees (please verify by inspecting the various delegate implementations here and on codeproject). I have yet to see an implementation which does not use wild reinterpret_casts, Nested class "prototypes" which hopefully produce function pointers of the same size as the one passed in by the user, compiler tricks like first forward declare, then typedef then declare again, this time inheriting from another class or similar shady techniques. While it is a great accomplishment for the implementers who built that, it is still a sad testimoney on how C++ evolves.
Only rarely is it pointed out, that now over 3 C++ standard revisions, delegates were not properly addressed. (Or the lack of language features which allow for straightforward delegate implementations.)
With the way C++11 lambda functions are defined by the standard (each lambda has anonymous, different type), the situation has only improved in some use cases. But for the use case of using delegates in (DLL) library APIs, lambdas alone are still not usable. The common technique here, is to first pack the lambda into a std::function and then pass it across the API.
You want:
if (document.getElementById('customx').value === ""){
//do something
}
The value
property will give you a string value and you need to compare that against an empty string.
In my case there was a static variable which was not initialized. When I initialized it, the error was removed. I don't know the logic behind it but worked for me. I know its a little late but other people with similar problem might get some help.
Architecture are "the design decisions that are hard to change."
After working with TDD, which practically means that your design changes all the time, I often found myself struggling with this question. The definition above is extracted from Patterns of Enterprise Application Architecture, By Martin Fowler
It means that the architecture depends on the Language, Framework and the Domain of your system. If your can just extract an interface from your Java Class in 5 minutes it is no longer and architecture decision.
I could be wrong, but I'm pretty sure that the "interrupt kernel" button just sends a SIGINT signal to the code that you're currently running (this idea is supported by Fernando's comment here), which is the same thing that hitting CTRL+C would do. Some processes within python handle SIGINTs more abruptly than others.
If you desperately need to stop something that is running in iPython Notebook and you started iPython Notebook from a terminal, you can hit CTRL+C twice in that terminal to interrupt the entire iPython Notebook server. This will stop iPython Notebook alltogether, which means it won't be possible to restart or save your work, so this is obviously not a great solution (you need to hit CTRL+C twice because it's a safety feature so that people don't do it by accident). In case of emergency, however, it generally kills the process more quickly than the "interrupt kernel" button.
The nebula-facet plugin eliminates the boilerplate:
apply plugin: 'nebula.facet'
facets {
integrationTest {
parentSourceSet = 'test'
}
}
For integration tests specifically, even this is done for you, just apply:
apply plugin: 'nebula.integtest'
The Gradle plugin portal links for each are:
You have to be specific about the columns you are selecting. If your user
table had four columns id, name, username, opted_in
you must select exactly those four columns from the query. The syntax looks like:
INSERT INTO user (id, name, username, opted_in)
SELECT id, name, username, opted_in
FROM user LEFT JOIN user_permission AS userPerm ON user.id = userPerm.user_id
However, there does not appear to be any reason to join against user_permission
here, since none of the columns from that table would be inserted into user
. In fact, this INSERT
seems bound to fail with primary key uniqueness violations.
MySQL does not support inserts into multiple tables at the same time. You either need to perform two INSERT
statements in your code, using the last insert id from the first query, or create an AFTER INSERT
trigger on the primary table.
INSERT INTO user (name, username, email, opted_in) VALUES ('a','b','c',0);
/* Gets the id of the new row and inserts into the other table */
INSERT INTO user_permission (user_id, permission_id) VALUES (LAST_INSERT_ID(), 4)
Or using a trigger:
CREATE TRIGGER creat_perms AFTER INSERT ON `user`
FOR EACH ROW
BEGIN
INSERT INTO user_permission (user_id, permission_id) VALUES (NEW.id, 4)
END
Maybe you should try removing "new" keyword and see if works.
Because last time I got this error when I tried creating Typeface
something like this:
Typeface typeface = new Typeface().create("Arial",Typeface.BOLD);
You can fetch the list of tables and schemata by querying the SQLITE_MASTER table:
sqlite> .tab
job snmptarget t1 t2 t3
sqlite> select name from sqlite_master where type = 'table';
job
t1
t2
snmptarget
t3
sqlite> .schema job
CREATE TABLE job (
id INTEGER PRIMARY KEY,
data VARCHAR
);
sqlite> select sql from sqlite_master where type = 'table' and name = 'job';
CREATE TABLE job (
id INTEGER PRIMARY KEY,
data VARCHAR
)
You array is being allocated on the stack in this case attempt to allocate an array of the same size using alloc.
No. This is not possible at all.
As others have noted, you need to declare a variable global
in a function when you want that function to be able to modify the global variable. If you only want to access it, then you don't need global
.
To go into a bit more detail on that, what "modify" means is this: if you want to re-bind the global name so it points to a different object, the name must be declared global
in the function.
Many operations that modify (mutate) an object do not re-bind the global name to point to a different object, and so they are all valid without declaring the name global
in the function.
d = {}
l = []
o = type("object", (object,), {})()
def valid(): # these are all valid without declaring any names global!
d[0] = 1 # changes what's in d, but d still points to the same object
d[0] += 1 # ditto
d.clear() # ditto! d is now empty but it`s still the same object!
l.append(0) # l is still the same list but has an additional member
o.test = 1 # creating new attribute on o, but o is still the same object
JavaScript is single-threaded, and all the time you work on a normal synchronous code-flow execution.
Good examples of the asynchronous behavior that JavaScript can have are events (user interaction, Ajax request results, etc) and timers, basically actions that might happen at any time.
I would recommend you to give a look to the following article:
That article will help you to understand the single-threaded nature of JavaScript and how timers work internally and how asynchronous JavaScript execution works.
plt.gca().xaxis.grid(True)
proved to be the solution for me
System.Windows.Forms.Clipboard.SetText
(Windows Forms) or System.Windows.Clipboard.SetText
(WPF)
I'm not so thrilled about the InetAddress.getLocalHost().getHostName()
solution that you can find so many places on the Internet and indeed also here. That method will get you the hostname as seen from a network perspective. I can see two problems with this:
What if the host has multiple network interfaces ? The host may be known on the network by multiple names. The one returned by said method is indeterminate afaik.
What if the host is not connected to any network and has no network interfaces ?
All OS'es that I know of have the concept of naming a node/host irrespective of network. Sad that Java cannot return this in an easy way. This would be the environment variable COMPUTERNAME
on all versions of Windows and the environment variable HOSTNAME
on Unix/Linux/MacOS (or alternatively the output from host command hostname
if the HOSTNAME
environment variable is not available as is the case in old shells like Bourne and Korn).
I would write a method that would retrieve (depending on OS) those OS vars and only as a last resort use the InetAddress.getLocalHost().getHostName()
method. But that's just me.
As others have pointed out the HOSTNAME
environment variable is typically not available to a Java application on Unix/Linux as it is not exported by default. Hence not a reliable method unless you are in control of the clients. This really sucks. Why isn't there a standard property with this information?
Alas, as far as I can see the only reliable way on Unix/Linux would be to make a JNI call to gethostname() or to use Runtime.exec()
to capture the output from the hostname
command. I don't particularly like any of these ideas but if anyone has a better idea I'm all ears. (update: I recently came across gethostname4j which seems to be the answer to my prayers).
I've created a long explanation in another answer on another post. In particular you may want to read it because it attempts to establish some terminology, gives concrete examples of when the InetAddress.getLocalHost().getHostName()
solution will fail, and points to the only safe solution that I know of currently, namely gethostname4j.
It's sad that Java doesn't provide a method for obtaining the computername. Vote for JDK-8169296 if you are able to.
Just copy war file to standalone/deployments/ folder, it should deploy it automatically. It'll also create your_app_name.deployed file, when your application is deployed. Also be sure that you start server with bin/standalone.sh script.
if you just type
$ git update
on bash git will inform you that 'update' command is no longer working and will display the correct command which is 'update-git-for-windows'
but still the update will continue you just have to press " y "
if you are having issues on it run the bashh as administrator or add the 'git.exe' path to the "allowed apps through controlled folder access".
Simple and Easy. Remove all columns after the 22th.
df.drop(columns=df.columns[22:]) # love it
Mohammed Radwan, Your solution is elegant. To detect iframe clicks in Firefox and IE, you can use a simple method with document.activeElement and a timer, however... I have searched all over the interwebs for a method to detect clicks on an iframe in Chrome and Safari. At the brink of giving up, I find your answer. Thank you, sir!
Some tips: I have found your solution to be more reliable when calling the init() function directly, rather than through attachOnloadEvent(). Of course to do that, you must call init() only after the iframe html. So it would look something like:
<script>
var isOverIFrame = false;
function processMouseOut() {
isOverIFrame = false;
top.focus();
}
function processMouseOver() { isOverIFrame = true; }
function processIFrameClick() {
if(isOverIFrame) {
//was clicked
}
}
function init() {
var element = document.getElementsByTagName("iframe");
for (var i=0; i<element.length; i++) {
element[i].onmouseover = processMouseOver;
element[i].onmouseout = processMouseOut;
}
if (typeof window.attachEvent != 'undefined') {
top.attachEvent('onblur', processIFrameClick);
}
else if (typeof window.addEventListener != 'undefined') {
top.addEventListener('blur', processIFrameClick, false);
}
}
</script>
<iframe src="http://google.com"></iframe>
<script>init();</script>
Since Java 1.5, you can get a more precise time value with System.nanoTime()
, which obviously returns nanoseconds instead.
There is probably some caching going on in the instances when you get an immediate result.
The first one is invalid syntax. You cannot have object properties inside a plain array. The second one is right although it is not strict JSON. It's a relaxed form of JSON wherein quotes in string keys are omitted.
This tutorial by Patrick Hunlock, may help to learn about JSON and this site may help to validate JSON.
names[] = {"Ankit","Bohra","Xyz"};
is an initializer and used solely when constructing or creating a new array object. It cannot be used to set the array. You can use it when declared as:
String[] names= {"Ankit","Bohra","Xyz"};
You may also use:
names=new String[] {"Ankit","Bohra","Xyz"};
Something to be aware of, the $_SESSION
variables are still set in the same page after calling session_destroy()
where as this is not the case when using unset($_SESSION)
or $_SESSION = array()
. Also, unset($_SESSION)
blows away the $_SESSION
superglobal so only do this when you're destroying a session.
With all that said, it's best to do like the PHP docs has it in the first example for session_destroy()
.
In your case, to fast-forward, run:
$ git merge --ff-only origin/master
This uses the --ff-only
option of git merge
, as the question specifically asks for "fast-forward".
Here is an excerpt from git-merge(1)
that shows more fast-forward options:
--ff, --no-ff, --ff-only
Specifies how a merge is handled when the merged-in history is already a descendant of the current history. --ff is the default unless merging an annotated
(and possibly signed) tag that is not stored in its natural place in the refs/tags/ hierarchy, in which case --no-ff is assumed.
With --ff, when possible resolve the merge as a fast-forward (only update the branch pointer to match the merged branch; do not create a merge commit). When
not possible (when the merged-in history is not a descendant of the current history), create a merge commit.
With --no-ff, create a merge commit in all cases, even when the merge could instead be resolved as a fast-forward.
With --ff-only, resolve the merge as a fast-forward when possible. When not possible, refuse to merge and exit with a non-zero status.
I fast-forward often enough that it warranted an alias:
$ git config --global alias.ff 'merge --ff-only @{upstream}'
Now I can run this to fast-forward:
$ git ff
Just like you do for getting something from the CNode
you also need to do for the ANode
XmlNodeList xnList = xml.SelectNodes("/Element[@*]");
foreach (XmlNode xn in xnList)
{
XmlNode anode = xn.SelectSingleNode("ANode");
if (anode!= null)
{
string id = anode["ID"].InnerText;
string date = anode["Date"].InnerText;
XmlNodeList CNodes = xn.SelectNodes("ANode/BNode/CNode");
foreach (XmlNode node in CNodes)
{
XmlNode example = node.SelectSingleNode("Example");
if (example != null)
{
string na = example["Name"].InnerText;
string no = example["NO"].InnerText;
}
}
}
}
You could do something like
<a href="http://home.com"><img src="images/logo.png" alt="" id="logo"></a>
in HTML
use the variable, Oracle does not support SQL in that context without an INTO. With a properly named variable your code will be more legible anyway.
have you tried?
<td title="This is Title">
its working fine here on Firefox v 18 (Aurora), Internet Explorer 8 & Google Chrome v 23x
value = value.setScale(2, RoundingMode.CEILING)
theres krugle and koders but both are expensive. Both have ide plugins for eclipse.
You can turn off GPU usage by Chrome without Windows restart in safe mode. Options:
1) by inserting section in Chrome config file "%USERPROFILE%\AppData\Local\Google\Chrome\User Data\Local State":
"hardware_acceleration_mode": { "enabled": false },
2) chrome.exe --disable-gpu
Anything that is part of Outer should have access to all of Outer's members, public or private.
Edit: your compiler is correct, var is not a member of Inner. But if you have a reference or pointer to an instance of Outer, it could access that.
clearfix
should contain the floating elements but in your html you have added clearfix
only after floating right that is your pull-right
so you should do like this:
<div class="clearfix">
<div id="sidebar">
<ul>
<li>A</li>
<li>A</li>
<li>C</li>
<li>D</li>
<li>E</li>
<li>F</li>
<li>...</li>
<li>Z</li>
</ul>
</div>
<div id="main">
<div>
<div class="pull-right">
<a>RIGHT</a>
</div>
</div>
<div>MOVED BELOW Z</div>
</div>
Happy to know you solved the problem by setting overflow properties. However this is also good idea to clear the float. Where you have floated your elements you could add overflow: hidden;
as you have done in your main.
Sure, why not? Let's say you have a Person
table, with id
, name
, age
, and parent_id
, where parent_id
is a foreign key to the same table. You wouldn't need to normalize the Person
table to Parent
and Child
tables, that would be overkill.
Person
| id | name | age | parent_id |
|----|-------|-----|-----------|
| 1 | Tom | 50 | null |
| 2 | Billy | 15 | 1 |
Something like this.
I suppose to maintain consistency, there would need to be at least 1 null value for parent_id
, though. The one "alpha male" row.
EDIT: As the comments show, Sam found a good reason not to do this. It seems that in MySQL when you attempt to make edits to the primary key, even if you specify CASCADE ON UPDATE
it won’t propagate the edit properly. Although primary keys are (usually) off-limits to editing in production, it is nevertheless a limitation not to be ignored. Thus I change my answer to:- you should probably avoid this practice unless you have pretty tight control over the production system (and can guarantee no one will implement a control that edits the PKs). I haven't tested it outside of MySQL.
$('#textbox').live('keypress', function(e) {
if (e.keyCode === 9) {
e.preventDefault();
// do work
}
});
I've preferred using the params filter for parameter-centric content-type.. I believe that should work in conjunction with the produces attribute.
@GetMapping(value="/person/{id}/",
params="format=json",
produces=MediaType.APPLICATION_JSON_VALUE)
public ResponseEntity<Person> getPerson(@PathVariable Integer id){
Person person = personMapRepository.findPerson(id);
return ResponseEntity.ok(person);
}
@GetMapping(value="/person/{id}/",
params="format=xml",
produces=MediaType.APPLICATION_XML_VALUE)
public ResponseEntity<Person> getPersonXML(@PathVariable Integer id){
return GetPerson(id); // delegate
}
The easiest way to do this is to open the database directly and use the .dump
command, rather than attaching it after invoking the SQLite 3 shell tool.
So... (assume your OS command line prompt is $) instead of $sqlite3
:
sqlite3> ATTACH database.sqlite as "attached"
From your OS command line, open the database directly:
$sqlite3 database.sqlite
sqlite3> .dump
The Javadocs from Sun for each collection class will generally tell you exactly what you want. HashMap, for example:
This implementation provides constant-time performance for the basic operations (get and put), assuming the hash function disperses the elements properly among the buckets. Iteration over collection views requires time proportional to the "capacity" of the HashMap instance (the number of buckets) plus its size (the number of key-value mappings).
This implementation provides guaranteed log(n) time cost for the containsKey, get, put and remove operations.
This implementation provides guaranteed log(n) time cost for the basic operations (add, remove and contains).
(emphasis mine)
Make sure that you have php-xml module installed and enabled in php.ini
.
You can also change response format to json which is easier to handle. In that case you have to only add &format=json
to url query string.
$rest_url = "http://api.facebook.com/restserver.php?method=links.getStats&format=json&urls=".urlencode($source_url);
And then use json_decode()
to retrieve data in your script:
$result = json_decode($content, true);
$fb_like_count = $result['like_count'];
Hi i tried this it is working.
$("#change_align").css({"margin-top":"-39px","margin-right":"0px","margin-bottom":"0px","margin-left":"719px"});
Another example is:
$(".myClass").on("click", function () {
var $this = $(this);
if ($this.hasClass("show") {
$this.removeClass("show");
} else {
$this.addClass("show");
}
});
<?php foreach ($sidemenus->mname as $sidemenu): ?>
<?php echo $sidemenu ."<br />";?>
or
$sidemenus = mysql_fetch_array($results);
then
<?php echo $sidemenu['mname']."<br />";?>
Obj-C has much more dynamic capabilities in the language itself, whereas C++ is more focused on compile-time capabilities with some dynamic capabilities.
In, C++ parametric polymorphism is checked at compile-time, whereas in Obj-C, parametric polymorphism is achieved through dynamic dispatch and is not checked at compile-time.
Obj-C is very dynamic in nature. You can add methods to a class during run-time. Also, it has introspection at run-time to look at classes. In C++, the definition of class can't change, and all introspection must be done at compile-time. Although, the dynamic nature of Obj-C could be achieved in C++ using a map of functions(or something like that), it is still more verbose than in Obj-C.
In C++, there is a lot more checks that can be done at compile time. For example, using a variant type(like a union) the compiler can enforce that all cases are written or handled. So you don't forget about handling the edge cases of a problem. However, all these checks come at a price when compiling. Obj-C is much faster at compiling than C++.
tow table join not rename the joined key
// method 1: create a new DF
day1 = day1.toDF(day1.columns.map(x => if (x.equals(key)) x else s"${x}_d1"): _*)
// method 2: use withColumnRenamed
for ((x, y) <- day1.columns.filter(!_.equals(key)).map(x => (x, s"${x}_d1"))) {
day1 = day1.withColumnRenamed(x, y)
}
works!
You can get the path via fp.name
. Example:
>>> f = open('foo/bar.txt')
>>> f.name
'foo/bar.txt'
You might need os.path.basename
if you want only the file name:
>>> import os
>>> f = open('foo/bar.txt')
>>> os.path.basename(f.name)
'bar.txt'
File object docs (for Python 2) here.
I have done this for Retina/Non-Retina display as
BOOL isRetina = FALSE;
if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)]) {
if ([[UIScreen mainScreen] scale] == 2.0) {
isRetina = TRUE;
} else {
isRetina = FALSE;
}
}
if (isRetina) {
self.edgesForExtendedLayout=UIRectEdgeNone;
self.extendedLayoutIncludesOpaqueBars=NO;
self.automaticallyAdjustsScrollViewInsets=NO;
}
A generic answer on how to handle click
events with KnockoutJS...
Not a straight up answer to the question as asked, but probably an answer to the question most Googlers landing here have: use the click
binding from KnockoutJS instead of onclick
. Like this:
function Item(parent, txt) {_x000D_
var self = this;_x000D_
_x000D_
self.doStuff = function(data, event) {_x000D_
console.log(data, event);_x000D_
parent.log(parent.log() + "\n data = " + ko.toJSON(data));_x000D_
};_x000D_
_x000D_
self.doOtherStuff = function(customParam, data, event) {_x000D_
console.log(data, event);_x000D_
parent.log(parent.log() + "\n data = " + ko.toJSON(data) + ", customParam = " + customParam);_x000D_
};_x000D_
_x000D_
self.txt = ko.observable(txt);_x000D_
}_x000D_
_x000D_
function RootVm(items) {_x000D_
var self = this;_x000D_
_x000D_
self.doParentStuff = function(data, event) {_x000D_
console.log(data, event);_x000D_
self.log(self.log() + "\n data = " + ko.toJSON(data));_x000D_
};_x000D_
_x000D_
self.items = ko.observableArray([_x000D_
new Item(self, "John Doe"),_x000D_
new Item(self, "Marcus Aurelius")_x000D_
]);_x000D_
self.log = ko.observable("Started logging...");_x000D_
}_x000D_
_x000D_
ko.applyBindings(new RootVm());
_x000D_
.parent { background: rgba(150, 150, 200, 0.5); padding: 2px; margin: 5px; }_x000D_
button { margin: 2px 0; font-family: consolas; font-size: 11px; }_x000D_
pre { background: #eee; border: 1px solid #ccc; padding: 5px; }
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.0/knockout-min.js"></script>_x000D_
_x000D_
<div data-bind="foreach: items">_x000D_
<div class="parent">_x000D_
<span data-bind="text: txt"></span><br>_x000D_
<button data-bind="click: doStuff">click: doStuff</button><br>_x000D_
<button data-bind="click: $parent.doParentStuff">click: $parent.doParentStuff</button><br>_x000D_
<button data-bind="click: $root.doParentStuff">click: $root.doParentStuff</button><br>_x000D_
<button data-bind="click: function(data, event) { $parent.log($parent.log() + '\n data = ' + ko.toJSON(data)); }">click: function(data, event) { $parent.log($parent.log() + '\n data = ' + ko.toJSON(data)); }</button><br>_x000D_
<button data-bind="click: doOtherStuff.bind($data, 'test 123')">click: doOtherStuff.bind($data, 'test 123')</button><br>_x000D_
<button data-bind="click: function(data, event) { doOtherStuff('test 123', $data, event); }">click: function(data, event) { doOtherStuff($data, 'test 123', event); }</button><br>_x000D_
</div>_x000D_
</div>_x000D_
_x000D_
Click log:_x000D_
<pre data-bind="text: log"></pre>
_x000D_
**A note about the actual question...*
The actual question has one interesting bit:
// Uh oh! Modifying the DOM....
place.innerHTML = "somthing"
Don't do that! Don't modify the DOM like that when using an MVVM framework like KnockoutJS, especially not the piece of the DOM that is your own parent. If you would do this the button would disappear (if you replace your parent's innerHTML
you yourself will be gone forever ever!).
Instead, modify the View Model in your handler instead, and have the View respond. For example:
function RootVm() {_x000D_
var self = this;_x000D_
self.buttonWasClickedOnce = ko.observable(false);_x000D_
self.toggle = function(data, event) {_x000D_
self.buttonWasClickedOnce(!self.buttonWasClickedOnce());_x000D_
};_x000D_
}_x000D_
_x000D_
ko.applyBindings(new RootVm());
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.0/knockout-min.js"></script>_x000D_
_x000D_
<div>_x000D_
<div data-bind="visible: !buttonWasClickedOnce()">_x000D_
<button data-bind="click: toggle">Toggle!</button>_x000D_
</div>_x000D_
<div data-bind="visible: buttonWasClickedOnce">_x000D_
Can be made visible with toggle..._x000D_
<button data-bind="click: toggle">Untoggle!</button>_x000D_
</div>_x000D_
</div>
_x000D_
You can't, and you shouldn't. That's what polymorphism is for, so that each object has its own way of doing some "base" things.
Select the code you want to comment, then use Ctr + / to comment and Ctrl + / also to uncomment. It may not work for all types of source files, but it works great for Java code.
Since Sept 2020, flutter 1.22.0:
Both "RaisedButton" and "FlatButton" are deprecated.
ElevatedButton
:Code:
ElevatedButton(
child: Text("ElevatedButton"),
onPressed: () => print("it's pressed"),
style: ElevatedButton.styleFrom(
primary: Colors.red,
onPrimary: Colors.white,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(32.0),
),
),
)
Don't forget, there's also an .icon
constructor to add an icon easily:
ElevatedButton.icon(
icon: Icon(Icons.thumb_up),
label: Text("Like"),
onPressed: () => print("it's pressed"),
style: ElevatedButton.styleFrom(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(32.0),
),
),
)
OutlinedButton
:Code:
OutlinedButton.icon(
icon: Icon(Icons.star_outline),
label: Text("OutlinedButton"),
onPressed: () => print("it's pressed"),
style: ElevatedButton.styleFrom(
side: BorderSide(width: 2.0, color: Colors.blue),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(32.0),
),
),
)
TextButton
:You can always use TextButton
if you don't want outline or color fill.
You are consuming a line at, which is discarded
while((str=input.readLine())!=null && str.length()!=0)
and reading a bigint at
BigInteger n = new BigInteger(input.readLine());
so try getting the bigint from string which is read as
BigInteger n = new BigInteger(str);
Constructor used: BigInteger(String val)
Aslo change while((str=input.readLine())!=null && str.length()!=0)
to
while((str=input.readLine())!=null)
see related post string to bigint
readLine()
Returns:
A String containing the contents of the line, not including any line-termination characters, or null if the end of the stream has been reached
see javadocs
Execute SELECT 1
and check if ExecuteScalar returns 1.
When you put the username and password in front of the host, this data is not sent that way to the server. It is instead transformed to a request header depending on the authentication schema used. Most of the time this is going to be Basic Auth which I describe below. A similar (but significantly less often used) authentication scheme is Digest Auth which nowadays provides comparable security features.
With Basic Auth, the HTTP request from the question will look something like this:
GET / HTTP/1.1
Host: example.com
Authorization: Basic Zm9vOnBhc3N3b3Jk
The hash like string you see there is created by the browser like this: base64_encode(username + ":" + password)
.
To outsiders of the HTTPS transfer, this information is hidden (as everything else on the HTTP level). You should take care of logging on the client and all intermediate servers though. The username will normally be shown in server logs, but the password won't. This is not guaranteed though. When you call that URL on the client with e.g. curl
, the username and password will be clearly visible on the process list and might turn up in the bash history file.
When you send passwords in a GET request as e.g. http://example.com/login.php?username=me&password=secure the username and password will always turn up in server logs of your webserver, application server, caches, ... unless you specifically configure your servers to not log it. This only applies to servers being able to read the unencrypted http data, like your application server or any middleboxes such as loadbalancers, CDNs, proxies, etc. though.
Basic auth is standardized and implemented by browsers by showing this little username/password popup you might have seen already. When you put the username/password into an HTML form sent via GET or POST, you have to implement all the login/logout logic yourself (which might be an advantage and allows you to more control over the login/logout flow for the added "cost" of having to implement this securely again). But you should never transfer usernames and passwords by GET parameters. If you have to, use POST instead. The prevents the logging of this data by default.
When implementing an authentication mechanism with a user/password entry form and a subsequent cookie-based session as it is commonly used today, you have to make sure that the password is either transported with POST requests or one of the standardized authentication schemes above only.
Concluding I could say, that transfering data that way over HTTPS is likely safe, as long as you take care that the password does not turn up in unexpected places. But that advice applies to every transfer of any password in any way.
When you use df.apply()
, each row of your DataFrame will be passed to your lambda function as a pandas Series. The frame's columns will then be the index of the series and you can access values using series[label]
.
So this should work:
df['D'] = (df.apply(lambda x: myfunc(x[colNames[0]], x[colNames[1]]), axis=1))
You need to tell the run to wait until the process is finished. Something like:
const DontWaitUntilFinished = false, ShowWindow = 1, DontShowWindow = 0, WaitUntilFinished = true
set oShell = WScript.CreateObject("WScript.Shell")
command = "cmd /c C:\windows\system32\wscript.exe <path>\myScript.vbs " & args
oShell.Run command, DontShowWindow, WaitUntilFinished
In the script itself, start Excel like so. While debugging start visible:
File = "c:\test\myfile.xls"
oShell.run """C:\Program Files\Microsoft Office\Office14\EXCEL.EXE"" " & File, 1, true
Simple way to format a date and convert into string
Date date= new Date();
String dateStr=String.format("%td/%tm/%tY", date,date,date);
System.out.println("Date with format of dd/mm/dd: "+dateStr);
output:Date with format of dd/mm/dd: 21/10/2015
WARNING THIS WILL POTENTIALLY OVERWRITE THE REMOTE REPOSITORY
This worked for me:
git push origin master --force
Here's a compact way to do something different in all four cases:
if(empty($youtube)) {
if(empty($link)) {
# both empty
} else {
# only $youtube not empty
}
} else {
if(empty($link)) {
# only $link empty
} else {
# both not empty
}
}
If you want to use an expression instead, you can use ?:
instead:
echo empty($youtube) ? ( empty($link) ? 'both empty' : 'only $youtube not empty' )
: ( empty($link) ? 'only $link empty' : 'both not empty' );
Okay, I'll write another instruction, because didn't find the clear answer here. So if you faced such problems, follow this:
You should not just create empty .env file, but fill it with content of .env.example.
php artisan key:generate
Application key [base64:wbvPP9pBOwifnwu84BeKAVzmwM4TLvcVFowLcPAi6nA=] set successfully.
APP_KEY=base64:wbvPP9pBOwifnwu84BeKAVzmwM4TLvcVFowLcPAi6nA=
php artisan config:cache
That's it.
You can determine that the connection is lost by making failed XHR requests.
The standard approach is to retry the request a few times. If it doesn't go through, alert the user to check the connection, and fail gracefully.
Sidenote: To put the entire application in an "offline" state may lead to a lot of error-prone work of handling state.. wireless connections may come and go, etc. So your best bet may be to just fail gracefully, preserve the data, and alert the user.. allowing them to eventually fix the connection problem if there is one, and to continue using your app with a fair amount of forgiveness.
Sidenote: You could check a reliable site like google for connectivity, but this may not be entirely useful as just trying to make your own request, because while Google may be available, your own application may not be, and you're still going to have to handle your own connection problem. Trying to send a ping to google would be a good way to confirm that the internet connection itself is down, so if that information is useful to you, then it might be worth the trouble.
Sidenote: Sending a Ping could be achieved in the same way that you would make any kind of two-way ajax request, but sending a ping to google, in this case, would pose some challenges. First, we'd have the same cross-domain issues that are typically encountered in making Ajax communications. One option is to set up a server-side proxy, wherein we actually ping
google (or whatever site), and return the results of the ping to the app. This is a catch-22 because if the internet connection is actually the problem, we won't be able to get to the server, and if the connection problem is only on our own domain, we won't be able to tell the difference. Other cross-domain techniques could be tried, for example, embedding an iframe in your page which points to google.com, and then polling the iframe for success/failure (examine the contents, etc). Embedding an image may not really tell us anything, because we need a useful response from the communication mechanism in order to draw a good conclusion about what's going on. So again, determining the state of the internet connection as a whole may be more trouble than it's worth. You'll have to weight these options out for your specific app.
I find the solution in spring.io,like this:
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
response.setHeader("Access-Control-Max-Age", "3600");
response.setHeader("Access-Control-Allow-Headers", "x-requested-with");
All the metadata about the columns in Oracle Database is accessible using one of the following views.
user_tab_cols; -- For all tables owned by the user
all_tab_cols ; -- For all tables accessible to the user
dba_tab_cols; -- For all tables in the Database.
So, if you are looking for a column like ADD_TMS in SCOTT.EMP Table and add the column only if it does not exist, the PL/SQL Code would be along these lines..
DECLARE
v_column_exists number := 0;
BEGIN
Select count(*) into v_column_exists
from user_tab_cols
where upper(column_name) = 'ADD_TMS'
and upper(table_name) = 'EMP';
--and owner = 'SCOTT --*might be required if you are using all/dba views
if (v_column_exists = 0) then
execute immediate 'alter table emp add (ADD_TMS date)';
end if;
end;
/
If you are planning to run this as a script (not part of a procedure), the easiest way would be to include the alter command in the script and see the errors at the end of the script, assuming you have no Begin-End for the script..
If you have file1.sql
alter table t1 add col1 date;
alter table t1 add col2 date;
alter table t1 add col3 date;
And col2 is present,when the script is run, the other two columns would be added to the table and the log would show the error saying "col2" already exists, so you should be ok.
place a setenv.sh in the the bin directory with
JAVA_HOME=/usr/java/jdk1.6.0_43/
JRE_HOME=/usr/java/jdk1.6.0_43/jre
or an other version your running.
The problem is with your curl options – the RCurl
package doesn't seem to use internet2.dll
.
You need to specify the port separately, and will probably need to give your user login details as network credentials, e.g.,
opts <- list(
proxy = "999.999.999.999",
proxyusername = "mydomain\\myusername",
proxypassword = "mypassword",
proxyport = 8080
)
getURL("http://stackoverflow.com", .opts = opts)
Remember to escape any backslashes in your password. You may also need to wrap the URL in a call to curlEscape
.
write direct password into config>database.php
'password' => env('DB_PASSWORD', '')
Change to
'password' => 'your password',
If you want to do a redirect, you can either:
ViewBag.Error = "error message";
or
TempData["Error"] = "error message";
You are probably looking for System.Guid.NewGuid()
.
One option is just to use the regex |
character to try to match each of the substrings in the words in your Series s
(still using str.contains
).
You can construct the regex by joining the words in searchfor
with |
:
>>> searchfor = ['og', 'at']
>>> s[s.str.contains('|'.join(searchfor))]
0 cat
1 hat
2 dog
3 fog
dtype: object
As @AndyHayden noted in the comments below, take care if your substrings have special characters such as $
and ^
which you want to match literally. These characters have specific meanings in the context of regular expressions and will affect the matching.
You can make your list of substrings safer by escaping non-alphanumeric characters with re.escape
:
>>> import re
>>> matches = ['$money', 'x^y']
>>> safe_matches = [re.escape(m) for m in matches]
>>> safe_matches
['\\$money', 'x\\^y']
The strings with in this new list will match each character literally when used with str.contains
.
The best way to watch store changes is to use mapGetters
as Gabriel said.
But there is a case when you can't do it through mapGetters
e.g. you want to get something from store using parameter:
getters: {
getTodoById: (state, getters) => (id) => {
return state.todos.find(todo => todo.id === id)
}
}
in that case you can't use mapGetters
. You may try to do something like this instead:
computed: {
todoById() {
return this.$store.getters.getTodoById(this.id)
}
}
But unfortunately todoById
will be updated only if this.id
is changed
If you want you component update in such case use this.$store.watch
solution provided by Gong. Or handle your component consciously and update this.id
when you need to update todoById
.
public class DataModel {
String name;
String type;
String version_number;
String feature;
public DataModel(String name, String type, String version_number, String feature ) {
this.name=name;
this.type=type;
this.version_number=version_number;
this.feature=feature;
}
public String getName() {
return name;
}
public String getType() {
return type;
}
public String getVersion_number() {
return version_number;
}
public String getFeature() {
return feature;
}
}
public class CustomAdapter extends ArrayAdapter<DataModel> implements View.OnClickListener{
private ArrayList<DataModel> dataSet;
Context mContext;
// View lookup cache
private static class ViewHolder {
TextView txtName;
TextView txtType;
TextView txtVersion;
ImageView info;
}
public CustomAdapter(ArrayList<DataModel> data, Context context) {
super(context, R.layout.row_item, data);
this.dataSet = data;
this.mContext=context;
}
@Override
public void onClick(View v) {
int position=(Integer) v.getTag();
Object object= getItem(position);
DataModel dataModel=(DataModel)object;
switch (v.getId())
{
case R.id.item_info:
Snackbar.make(v, "Release date " +dataModel.getFeature(), Snackbar.LENGTH_LONG)
.setAction("No action", null).show();
break;
}
}
private int lastPosition = -1;
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// Get the data item for this position
DataModel dataModel = getItem(position);
// Check if an existing view is being reused, otherwise inflate the view
ViewHolder viewHolder; // view lookup cache stored in tag
final View result;
if (convertView == null) {
viewHolder = new ViewHolder();
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(R.layout.row_item, parent, false);
viewHolder.txtName = (TextView) convertView.findViewById(R.id.name);
viewHolder.txtType = (TextView) convertView.findViewById(R.id.type);
viewHolder.txtVersion = (TextView) convertView.findViewById(R.id.version_number);
viewHolder.info = (ImageView) convertView.findViewById(R.id.item_info);
result=convertView;
convertView.setTag(viewHolder);
} else {
viewHolder = (ViewHolder) convertView.getTag();
result=convertView;
}
Animation animation = AnimationUtils.loadAnimation(mContext, (position > lastPosition) ? R.anim.up_from_bottom : R.anim.down_from_top);
result.startAnimation(animation);
lastPosition = position;
viewHolder.txtName.setText(dataModel.getName());
viewHolder.txtType.setText(dataModel.getType());
viewHolder.txtVersion.setText(dataModel.getVersion_number());
viewHolder.info.setOnClickListener(this);
viewHolder.info.setTag(position);
// Return the completed view to render on screen
return convertView;
}
}
public class MainActivity extends AppCompatActivity {
ArrayList<DataModel> dataModels;
ListView listView;
private static CustomAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
listView=(ListView)findViewById(R.id.list);
dataModels= new ArrayList<>();
dataModels.add(new DataModel("Apple Pie", "Android 1.0", "1","September 23, 2008"));
dataModels.add(new DataModel("Banana Bread", "Android 1.1", "2","February 9, 2009"));
dataModels.add(new DataModel("Cupcake", "Android 1.5", "3","April 27, 2009"));
dataModels.add(new DataModel("Donut","Android 1.6","4","September 15, 2009"));
dataModels.add(new DataModel("Eclair", "Android 2.0", "5","October 26, 2009"));
dataModels.add(new DataModel("Froyo", "Android 2.2", "8","May 20, 2010"));
dataModels.add(new DataModel("Gingerbread", "Android 2.3", "9","December 6, 2010"));
dataModels.add(new DataModel("Honeycomb","Android 3.0","11","February 22, 2011"));
dataModels.add(new DataModel("Ice Cream Sandwich", "Android 4.0", "14","October 18, 2011"));
dataModels.add(new DataModel("Jelly Bean", "Android 4.2", "16","July 9, 2012"));
dataModels.add(new DataModel("Kitkat", "Android 4.4", "19","October 31, 2013"));
dataModels.add(new DataModel("Lollipop","Android 5.0","21","November 12, 2014"));
dataModels.add(new DataModel("Marshmallow", "Android 6.0", "23","October 5, 2015"));
adapter= new CustomAdapter(dataModels,getApplicationContext());
listView.setAdapter(adapter);
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
DataModel dataModel= dataModels.get(position);
Snackbar.make(view, dataModel.getName()+"\n"+dataModel.getType()+" API: "+dataModel.getVersion_number(), Snackbar.LENGTH_LONG)
.setAction("No action", null).show();
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="10dp">
<TextView
android:id="@+id/name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="Marshmallow"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textColor="@android:color/black" />
<TextView
android:id="@+id/type"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/name"
android:layout_marginTop="5dp"
android:text="Android 6.0"
android:textColor="@android:color/black" />
<ImageView
android:id="@+id/item_info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:src="@android:drawable/ic_dialog_info" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true">
<TextView
android:id="@+id/version_heading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="API: "
android:textColor="@android:color/black"
android:textStyle="bold" />
<TextView
android:id="@+id/version_number"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="23"
android:textAppearance="?android:attr/textAppearanceButton"
android:textColor="@android:color/black"
android:textStyle="bold" />
</LinearLayout>
</RelativeLayout>
For impatient:
Without passing argument, persist()
and cache()
are the same, with default settings:
RDD
: MEMORY_ONLYDataset
: MEMORY_AND_DISKUnlike cache()
, persist()
allows you to pass argument inside the bracket, in order to specify the level:
persist(MEMORY_ONLY)
persist(MEMORY_ONLY_SER)
persist(MEMORY_AND_DISK)
persist(MEMORY_AND_DISK_SER )
persist(DISK_ONLY )
Voilà!
I think it will be easier using syntax-based query:
var entryPoint = (from ep in dbContext.tbl_EntryPoint
join e in dbContext.tbl_Entry on ep.EID equals e.EID
join t in dbContext.tbl_Title on e.TID equals t.TID
where e.OwnerID == user.UID
select new {
UID = e.OwnerID,
TID = e.TID,
Title = t.Title,
EID = e.EID
}).Take(10);
And you should probably add orderby
clause, to make sure Top(10)
returns correct top ten items.
refer below link for getting ScanResult with redundant ssid removed from the list
Use this function:
function is_checkbox(selector) {
var $result = $(selector);
return $result[0] && $result[0].type === 'checkbox';
};
Or this jquery plugin:
$.fn.is_checkbox = function () { return this.is(':checkbox'); };
Basically, use whatever makes the code most readable. There are definitely places where one or the other constructs makes for cleaner, more readable and more maintainable. This is far more important that perhaps saving a few nanoseconds in JavaScript code.
You Can simply Right Click Formula Fields- > new Give it a name like TotalCount then Right this code:
if(isnull(sum(count({YOURCOLUMN})))) then
0
else
(sum(count({YOURCOLUMN})))
and Save then Drag and drop TotalCount this field in header/footer. After you open the "count" bracket you can drop your column there from the above section.See the example in the Picture
I've just found the answer to this with some more exhaustive googling:
Melvyn Harbour has a thorough explanation of why MVC works with dates the way it does, and how you can override this if necessary:
http://weblogs.asp.net/melvynharbour/archive/2008/11/21/mvc-modelbinder-and-localization.aspx
When looking for the value to parse, the framework looks in a specific order namely:
- RouteData (not shown above)
- URI query string
- Request form
Only the last of these will be culture aware however. There is a very good reason for this, from a localization perspective. Imagine that I have written a web application showing airline flight information that I publish online. I look up flights on a certain date by clicking on a link for that day (perhaps something like http://www.melsflighttimes.com/Flights/2008-11-21), and then want to email that link to my colleague in the US. The only way that we could guarantee that we will both be looking at the same page of data is if the InvariantCulture is used. By contrast, if I'm using a form to book my flight, everything is happening in a tight cycle. The data can respect the CurrentCulture when it is written to the form, and so needs to respect it when coming back from the form.
int? here = (list.ElementAtOrDefault(2) != 0 ? list[2]:(int?) null);
SELECT DISTINCT groups.id,
(SELECT COUNT(*) FROM group_members
WHERE member_id = groups.id) AS memberCount
FROM groups
I assume that you are using MasterPage so within your master page you should have
<head runat="server">
<asp:ContentPlaceHolder ID="head" runat="server">
</asp:ContentPlaceHolder>
</head>
And within any of your pages based on that MasterPage add this
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="server">
<script src="js/yourscript.js" type="text/javascript"></script>
</asp:Content>
There's an easier way:
find ... | while read -r file; do
echo "look at my $file, my $file is amazing";
done
Alternatively:
while read -r file; do
echo "look at my $file, my $file is amazing";
done <<< "$(find ...)"
This works for me in my onClickListener
:
yourView.postDelayed(new Runnable() {
@Override
public void run() {
yourView.invalidate();
System.out.println("Height yourView: " + yourView.getHeight());
System.out.println("Width yourView: " + yourView.getWidth());
}
}, 1);
I was in a situation where I was looking for -s theirs
but of course, this strategy doesn't exist. My history was that I had forked a project on GitHub, and now for some reason, my local master
could not be merged with upstream/master
although I had made no local changes to this branch. (Really don't know what happened there -- I guess upstream had done some dirty pushes behind the scenes, maybe?)
What I ended up doing was
# as per https://help.github.com/articles/syncing-a-fork/
git fetch upstream
git checkout master
git merge upstream/master
....
# Lots of conflicts, ended up just abandonging this approach
git reset --hard # Ditch failed merge
git checkout upstream/master
# Now in detached state
git branch -d master # !
git checkout -b master # create new master from upstream/master
So now my master
is again in sync with upstream/master
(and you could repeat the above for any other branch you also want to sync similarly).
Some great examples (and a ready-made JavaScript SOAP client!) here: http://plugins.jquery.com/soap/
Check the readme, and beware the same-origin browser restriction.
Include required imports and you can make ur decision in handleError method Error status will give the error code
import { HttpClient, HttpErrorResponse } from '@angular/common/http';
import {Observable, throwError} from "rxjs/index";
import { catchError, retry } from 'rxjs/operators';
import {ApiResponse} from "../model/api.response";
import { TaxType } from '../model/taxtype.model';
private handleError(error: HttpErrorResponse) {
if (error.error instanceof ErrorEvent) {
// A client-side or network error occurred. Handle it accordingly.
console.error('An error occurred:', error.error.message);
} else {
// The backend returned an unsuccessful response code.
// The response body may contain clues as to what went wrong,
console.error(
`Backend returned code ${error.status}, ` +
`body was: ${error.error}`);
}
// return an observable with a user-facing error message
return throwError(
'Something bad happened; please try again later.');
};
getTaxTypes() : Observable<ApiResponse> {
return this.http.get<ApiResponse>(this.baseUrl).pipe(
catchError(this.handleError)
);
}
There's a much easier way than recompiling PHP. Just yum install the required mbstring library:
Example: How to install PHP mbstring on CentOS 6.2
yum --enablerepo=remi install php-mbstring
Oh, and don't forget to restart apache afterward.
It's not generally correct that you can "remove an item from a database" with both methods. To be precise it is like so:
ObjectContext.DeleteObject(entity)
marks the entity as Deleted
in the context. (It's EntityState
is Deleted
after that.) If you call SaveChanges
afterwards EF sends a SQL DELETE
statement to the database. If no referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
EntityCollection.Remove(childEntity)
marks the relationship between parent and childEntity
as Deleted
. If the childEntity
itself is deleted from the database and what exactly happens when you call SaveChanges
depends on the kind of relationship between the two:
If the relationship is optional, i.e. the foreign key that refers from the child to the parent in the database allows NULL
values, this foreign will be set to null and if you call SaveChanges
this NULL
value for the childEntity
will be written to the database (i.e. the relationship between the two is removed). This happens with a SQL UPDATE
statement. No DELETE
statement occurs.
If the relationship is required (the FK doesn't allow NULL
values) and the relationship is not identifying (which means that the foreign key is not part of the child's (composite) primary key) you have to either add the child to another parent or you have to explicitly delete the child (with DeleteObject
then). If you don't do any of these a referential constraint is violated and EF will throw an exception when you call SaveChanges
- the infamous "The relationship could not be changed because one or more of the foreign-key properties is non-nullable" exception or similar.
If the relationship is identifying (it's necessarily required then because any part of the primary key cannot be NULL
) EF will mark the childEntity
as Deleted
as well. If you call SaveChanges
a SQL DELETE
statement will be sent to the database. If no other referential constraints in the database are violated the entity will be deleted, otherwise an exception is thrown.
I am actually a bit confused about the Remarks section on the MSDN page you have linked because it says: "If the relationship has a referential integrity constraint, calling the Remove method on a dependent object marks both the relationship and the dependent object for deletion.". This seems unprecise or even wrong to me because all three cases above have a "referential integrity constraint" but only in the last case the child is in fact deleted. (Unless they mean with "dependent object" an object that participates in an identifying relationship which would be an unusual terminology though.)
I don't yet see a viable answer for 2.7 which doesn't require installing additional dependencies and also starts from the file's directory. It's not nice as a single-line solution, but there's nothing wrong with using the standard utilities.
import os
grandparent_dir = os.path.abspath( # Convert into absolute path string
os.path.join( # Current file's grandparent directory
os.path.join( # Current file's parent directory
os.path.dirname( # Current file's directory
os.path.abspath(__file__) # Current file path
),
os.pardir
),
os.pardir
)
)
print grandparent_dir
And to prove it works, here I start out in ~/Documents/notes
just so that I show the current directory doesn't influence outcome. I put the file grandpa.py
with that script in a folder called "scripts". It crawls up to the Documents dir and then to the user dir on a Mac.
(testing)AlanSE-OSX:notes AlanSE$ echo ~/Documents/scripts/grandpa.py
/Users/alancoding/Documents/scripts/grandpa.py
(testing)AlanSE-OSX:notes AlanSE$ python2.7 ~/Documents/scripts/grandpa.py
/Users/alancoding
This is the obvious extrapolation of the answer for the parent dir. Better to use a general solution than a less-good solution in fewer lines.
private void MainTimesheetForm_Load(object sender, EventArgs e)
{
ListViewItem newList = new ListViewItem("1");
newList.SubItems.Add("2");
newList.SubItems.Add(DateTime.Now.ToLongTimeString());
newList.SubItems.Add("3");
newList.SubItems.Add("4");
newList.SubItems.Add("5");
newList.SubItems.Add("6");
listViewTimeSheet.Items.Add(newList);
}
I'd re-iterate Donny V. answer and Josh's
"The only reason I wouldn't use the async version is if I were trying to support an older version of .NET that does not already have built in async support."
(and upvote if I had the reputation.)
I can't remember the last time if ever, I was grateful of the fact HttpWebRequest threw exceptions for status codes >= 400. To get around these issues you need to catch the exceptions immediately, and map them to some non-exception response mechanisms in your code...boring, tedious and error prone in itself. Whether it be communicating with a database, or implementing a bespoke web proxy, its 'nearly' always desirable that the Http driver just tell your application code what was returned, and leave it up to you to decide how to behave.
Hence HttpClient is preferable.
In C++11 and beyond, you can use the back
member function:
char ch = myStr.back();
In C++03, std::string::back
is not available due to an oversight, but you can get around this by dereferencing the reverse_iterator
you get back from rbegin
:
char ch = *myStr.rbegin();
In both cases, be careful to make sure the string actually has at least one character in it! Otherwise, you'll get undefined behavior, which is a Bad Thing.
Hope this helps!
Try this script to get your browser language
<script type="text/javascript">_x000D_
var userLang = navigator.language || navigator.userLanguage; _x000D_
alert ("The language is: " + userLang);_x000D_
</script>
_x000D_
Cheers
As ant31 already pointed out you can use the synchronize
module to this. By default, the module transfers files between the control machine and the current remote host (inventory_host
), however that can be changed using the task's delegate_to
parameter (it's important to note that this is a parameter of the task, not of the module).
You can place the task on either ServerA
or ServerB
, but you have to adjust the direction of the transfer accordingly (using the mode
parameter of synchronize
).
Placing the task on ServerB
- hosts: ServerB
tasks:
- name: Transfer file from ServerA to ServerB
synchronize:
src: /path/on/server_a
dest: /path/on/server_b
delegate_to: ServerA
This uses the default mode: push
, so the file gets transferred from the delegate (ServerA
) to the current remote (ServerB
).
This might sound like strange, since the task has been placed on ServerB
(via hosts: ServerB
). However, one has to keep in mind that the task is actually executed on the delegated host, which in this case is ServerA
. So pushing (from ServerA
to ServerB
) is indeed the correct direction. Also remember that we cannot simply choose not to delegate at all, since that would mean that the transfer happens between the control machine and ServerB
.
Placing the task on ServerA
- hosts: ServerA
tasks:
- name: Transfer file from ServerA to ServerB
synchronize:
src: /path/on/server_a
dest: /path/on/server_b
mode: pull
delegate_to: ServerB
This uses mode: pull
to invert the transfer direction. Again, keep in mind that the task is actually executed on ServerB
, so pulling is the right choice.
For those of you developing on localhost follow these steps:
Information Property List
and add App Transport Security Settings
and assign it a Dictionary
TypeApp Transport Security Settings
entry and add NSExceptionAllowsInsecureHTTPLoads
of type Boolean
and set its value to YES
. NSExceptionAllowsInsecureHTTPLoads
entry and click the "Shift Row Right" option to make it a child of the above entry. NSExceptionAllowsInsecureHTTPLoads
entry and add Allow Arbitrary Loads
of type Boolean
and set its value to YES
Note: It should in the end look something like presented in the following picture
You need to create a keystore by the keytool for signed apps for android like the procedure described in Android Site and then you have to install cygwin and then you need to install openssl from google code then just execute the following command and you will get the hash key for android and then put that hash key into the facebook application you created. And then you can access the facebook application through the Android Application for posting wall ("publish_stream") could be an example.
$ keytool -exportcert -alias alias_name -keystore sample_keystore.keystore | openssl sha1 -binary | openssl base64
You need to execute the above command from cygwin.
The most important consideration is whether the item in question should be able to be traversed more than once. This is because you can always rewind an Iterable by calling iterator() again, but there is no way to rewind an Iterator.
How about this ? Example illusrated using a file:
f = open('abc.log','r')
content = f.readlines()
for line in content:
m = re.search(r"\[(.*?)\]", line)
print m.group(1)
Hope this helps:
Magic regex : \[(.*?)\]
Explanation:
\[
: [
is a meta char and needs to be escaped if you want to match it literally.
(.*?)
: match everything in a non-greedy way and capture it.
\]
: ]
is a meta char and needs to be escaped if you want to match it literally.
includes() is not supported by most browsers. Your options are either to use
-polyfill from MDN https://developer.mozilla.org/en/docs/Web/JavaScript/Reference/Global_Objects/String/includes
or to use
-indexof()
var str = "abcde";
var n = str.indexOf("cd");
Which gives you n=2
This is widely supported.
Passive event listeners are an emerging web standard, new feature shipped in Chrome 51 that provide a major potential boost to scroll performance. Chrome Release Notes.
It enables developers to opt-in to better scroll performance by eliminating the need for scrolling to block on touch and wheel event listeners.
Problem: All modern browsers have a threaded scrolling feature to permit scrolling to run smoothly even when expensive JavaScript is running, but this optimization is partially defeated by the need to wait for the results of any touchstart
and touchmove
handlers, which may prevent the scroll entirely by calling preventDefault()
on the event.
Solution: {passive: true}
By marking a touch or wheel listener as passive, the developer is promising the handler won't call preventDefault
to disable scrolling. This frees the browser up to respond to scrolling immediately without waiting for JavaScript, thus ensuring a reliably smooth scrolling experience for the user
.
document.addEventListener("touchstart", function(e) {
console.log(e.defaultPrevented); // will be false
e.preventDefault(); // does nothing since the listener is passive
console.log(e.defaultPrevented); // still false
}, Modernizr.passiveeventlisteners ? {passive: true} : false);
You should use Enum.TryParse to achive your goal
This is a example:
[Flags]
private enum TestEnum
{
Value1 = 1,
Value2 = 2
}
static void Main(string[] args)
{
var enumName = "Value1";
TestEnum enumValue;
if (!TestEnum.TryParse(enumName, out enumValue))
{
throw new Exception("Wrong enum value");
}
// enumValue contains parsed value
}
An answer with an important explanation:
There are two parameters of "TestNG" who are supposed to determine the order of execution the tests:
@Test(dependsOnGroups= "someGroup")
And:
@Test(dependsOnMethods= "someMethod")
In both cases these functions will depend on the method or group,
But the differences:
In this case:
@Test(dependsOnGroups= "someGroup")
The method will be dependent on the whole group, so it is not necessarily that immediately after the execution of the dependent function, this method will also be executed, but it may occur later in the run and even after other tests run.
It is important to note that in case and there is more than one use within the same set of tests in this parameter, this is a safe recipe for problems, because the dependent methods of the entire set of tests will run first and only then the methods that depend on them.
However, in this case:
@Test(dependsOnMethods= "someMethod")
Even if this parameter is used more than once within the same set of tests, the dependent method will still be executed after the dependent method is executed immediately.
Hope it's clearly and help.
I think this is what you are looking for:
df.drop('Region', axis=1).apply(lambda x: x.mean(), axis=1)
new
isn't required and should be avoidedvar str = new String('asd'); // type: object
var str = String('asd'); // type: string
var num = new Number(12); // type: object
var num = Number(12); // type: number
new
is required, otherwise you'll get an errornew Date().getFullYear(); // correct, returns the current year, i.e. 2010
Date().getFullYear(); // invalid, returns an error
Image by default is displayed as inline-block, you need to display it as block in order to center it with .mx-auto
. This can be done with built-in .d-block
:
<div class="container">
<div class="row">
<div class="col-4">
<img class="mx-auto d-block" src="...">
</div>
</div>
</div>
Or leave it as inline-block and wrapped it in a div with .text-center
:
<div class="container">
<div class="row">
<div class="col-4">
<div class="text-center">
<img src="...">
</div>
</div>
</div>
</div>
I made a fiddle showing both ways. They are documented here as well.
We can set the width for ul tag then it will align center.
#header ul {
display: block;
margin: 0 auto;
width: 420px;
max-width: 100%;
}
This is my piece of Groovy code for that. Tested.
private static void copyLargeDir(File dirFrom, File dirTo){
// creation the target dir
if (!dirTo.exists()){
dirTo.mkdir();
}
// copying the daughter files
dirFrom.eachFile(FILES){File source ->
File target = new File(dirTo,source.getName());
target.bytes = source.bytes;
}
// copying the daughter dirs - recursion
dirFrom.eachFile(DIRECTORIES){File source ->
File target = new File(dirTo,source.getName());
copyLargeDir(source, target)
}
}
class Student{
//instance variable or data members.
Map<Integer, List<Object>> mapp = new HashMap<Integer, List<Object>>();
Scanner s1 = new Scanner(System.in);
String name = s1.nextLine();
int regno ;
int mark1;
int mark2;
int total;
List<Object> list = new ArrayList<Object>();
mapp.put(regno,list); //what wrong in this part?
list.add(mark1);
list.add(mark2);**
//String mark2=mapp.get(regno)[2];
}
while True
is true -- ie always. This is an infinite loop
Note the important distinction here between True
which is a keyword in the language denoting a constant value of a particular type, and 'true' which is a mathematical concept.
Semantically, you're probably looking for the one-liner
new Date().toLocaleString()
which formats the date in the locale of the user.
If you're really looking for a specific way to format dates, I recommend the moment.js library.
I believe you need to map the result before you subscribe to it. You configure it like this:
updateProfileInformation(user: User) {
var headers = new Headers();
headers.append('Content-Type', this.constants.jsonContentType);
var t = localStorage.getItem("accessToken");
headers.append("Authorization", "Bearer " + t;
var body = JSON.stringify(user);
return this.http.post(this.constants.userUrl + "UpdateUser", body, { headers: headers })
.map((response: Response) => {
var result = response.json();
return result;
})
.catch(this.handleError)
.subscribe(
status => this.statusMessage = status,
error => this.errorMessage = error,
() => this.completeUpdateUser()
);
}
Similar problem - same error message. I got the same message when trying to clone something from bitbucket with ssh. The problem was in my ssh configuration configured in the mercurial.ini: I used the wrong bitbucket username. After I corrected the user name things worked.
SQL Server returns messages after a batch of statements has been executed. Normally, you'd use SQL GO
to indicate the end of a batch and to retrieve the results:
PRINT '1'
GO
WAITFOR DELAY '00:00:05'
PRINT '2'
GO
WAITFOR DELAY '00:00:05'
PRINT '3'
GO
In this case, however, the print statement you want returned immediately is in the middle of a loop, so the print statements cannot be in their own batch. The only command I know of that will return in the middle of a batch is RAISERROR (...) WITH NOWAIT
, which gbn has provided as an answer as I type this.
To resolve the issue on a Debian/Ubuntu system modify the /etc/apache2/ports.conf
settings file by adding NameVirtualHost *:443
to it. My ports.conf
is the following at the moment:
# /etc/apache/ports.conf
# If you just change the port or add more ports here, you will likely also
# have to change the VirtualHost statement in
# /etc/apache2/sites-enabled/000-default
# This is also true if you have upgraded from before 2.2.9-3 (i.e. from
# Debian etch). See /usr/share/doc/apache2.2-common/NEWS.Debian.gz and
# README.Debian.gz
NameVirtualHost *:80
Listen 80
<IfModule mod_ssl.c>
# If you add NameVirtualHost *:443 here, you will also have to change
# the VirtualHost statement in /etc/apache2/sites-available/default-ssl
# to <VirtualHost *:443>
# Server Name Indication for SSL named virtual hosts is currently not
# supported by MSIE on Windows XP.
NameVirtualHost *:443
Listen 443
</IfModule>
<IfModule mod_gnutls.c>
NameVirtualHost *:443
Listen 443
</IfModule>
Furthermore ensure that 'sites-available/default-ssl' is not enabled, type a2dissite default-ssl
to disable the site. While you're at it type a2dissite
by itself to get a list and see if there is any other site settings that you have enabled that might be mapping onto port 443.
You can download a native OpenSSL for Windows, or you can always use Cygwin.
You are correct that the GPL is more restrictive than the MIT license.
You cannot include GPL code in a MIT licensed product. If you distribute a combined work that combines GPL and MIT code (except in some particular situations, e.g. 'mere aggregation'), that distribution must be compliant with the GPL.
You can include MIT licensed code in a GPL product. The whole combined work must be distributed in a way compliant with the GPL. If you have made changes to the MIT parts of the code, you would be required to publish the source for those changes if you distribute an application that contains GPL and MIT code.
If you are the copyright owner of the GPL code, you can of course choose to release that code under the MIT license instead - in that case it's your code and you can publish it under as many licenses as you want.
I prefer this (below):
public class User
{
public int Id { get; set; }
public int? CountryId { get; set; }
[ForeignKey("CountryId")]
public virtual Country Country { get; set; }
}
Because EF was creating 2 foreign keys in the database table: CountryId, and CountryId1, but the code above fixed that.
While I agree with everyone, this is no-nice behavior, here is code:
[DllImport("User32.dll")]
public static extern Int32 SetForegroundWindow(int hWnd);
SetForegroundWindow(Handle.ToInt32());
Update
David is completely right, for completeness I include the list of conditions that must apply for this to work (+1 for David!):
Remember Running Background, Running continuously are two different tasks.
For long-term background processes, Threads aren't optimal with Android. However, here's the code and do it at your own risk...
Remember Service or Thread will run in the background but our task needs to make trigger (call again and again) to get updates, i.e. once the task is completed we need to recall the function for next update.
Timer (periodic trigger), Alarm (Timebase trigger), Broadcast (Event base Trigger), recursion will awake our functions.
public static boolean isRecursionEnable = true;
void runInBackground() {
if (!isRecursionEnable)
// Handle not to start multiple parallel threads
return;
// isRecursionEnable = false; when u want to stop
// on exception on thread make it true again
new Thread(new Runnable() {
@Override
public void run() {
// DO your work here
// get the data
if (activity_is_not_in_background) {
runOnUiThread(new Runnable() {
@Override
public void run() {
// update UI
runInBackground();
}
});
} else {
runInBackground();
}
}
}).start();
}
Using Service: If you launch a Service it will start, It will execute the task, and it will terminate itself. after the task execution. terminated might also be caused by exception, or user killed it manually from settings. START_STICKY (Sticky Service) is the option given by android that service will restart itself if service terminated.
Remember the question difference between multiprocessing and multithreading? Service is a background process (Just like activity without UI), The same way how you launch thread in the activity to avoid load on the main thread (Activity thread), the same way you need to launch threads(or async tasks) on service to avoid load on service.
In a single statement, if you want a run a background continues task, you need to launch a StickyService and run the thread in the service on event base
You can track all calls to [ASIdentifierManager advertisingIdentifier]
with symbolic breakpoint in Xcode:
You can create a folder with os.makedirs()
and use os.path.exists() to see if it already exists:
newpath = r'C:\Program Files\arbitrary'
if not os.path.exists(newpath):
os.makedirs(newpath)
If you're trying to make an installer: Windows Installer does a lot of work for you.
Here is how you set the date and time:
update user set expiry_date=TO_DATE('31/DEC/2017 12:59:59', 'dd/mm/yyyy hh24:mi:ss') where id=123;
Another version using SHA-3, I am using bouncycastle:
The interface:
public interface IPasswords {
/**
* Generates a random salt.
*
* @return a byte array with a 64 byte length salt.
*/
byte[] getSalt64();
/**
* Generates a random salt
*
* @return a byte array with a 32 byte length salt.
*/
byte[] getSalt32();
/**
* Generates a new salt, minimum must be 32 bytes long, 64 bytes even better.
*
* @param size the size of the salt
* @return a random salt.
*/
byte[] getSalt(final int size);
/**
* Generates a new hashed password
*
* @param password to be hashed
* @param salt the randomly generated salt
* @return a hashed password
*/
byte[] hash(final String password, final byte[] salt);
/**
* Expected password
*
* @param password to be verified
* @param salt the generated salt (coming from database)
* @param hash the generated hash (coming from database)
* @return true if password matches, false otherwise
*/
boolean isExpectedPassword(final String password, final byte[] salt, final byte[] hash);
/**
* Generates a random password
*
* @param length desired password length
* @return a random password
*/
String generateRandomPassword(final int length);
}
The implementation:
import org.apache.commons.lang3.ArrayUtils;
import org.apache.commons.lang3.Validate;
import org.apache.log4j.Logger;
import org.bouncycastle.jcajce.provider.digest.SHA3;
import java.io.Serializable;
import java.io.UnsupportedEncodingException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
public final class Passwords implements IPasswords, Serializable {
/*serialVersionUID*/
private static final long serialVersionUID = 8036397974428641579L;
private static final Logger LOGGER = Logger.getLogger(Passwords.class);
private static final Random RANDOM = new SecureRandom();
private static final int DEFAULT_SIZE = 64;
private static final char[] symbols;
static {
final StringBuilder tmp = new StringBuilder();
for (char ch = '0'; ch <= '9'; ++ch) {
tmp.append(ch);
}
for (char ch = 'a'; ch <= 'z'; ++ch) {
tmp.append(ch);
}
symbols = tmp.toString().toCharArray();
}
@Override public byte[] getSalt64() {
return getSalt(DEFAULT_SIZE);
}
@Override public byte[] getSalt32() {
return getSalt(32);
}
@Override public byte[] getSalt(int size) {
final byte[] salt;
if (size < 32) {
final String message = String.format("Size < 32, using default of: %d", DEFAULT_SIZE);
LOGGER.warn(message);
salt = new byte[DEFAULT_SIZE];
} else {
salt = new byte[size];
}
RANDOM.nextBytes(salt);
return salt;
}
@Override public byte[] hash(String password, byte[] salt) {
Validate.notNull(password, "Password must not be null");
Validate.notNull(salt, "Salt must not be null");
try {
final byte[] passwordBytes = password.getBytes("UTF-8");
final byte[] all = ArrayUtils.addAll(passwordBytes, salt);
SHA3.DigestSHA3 md = new SHA3.Digest512();
md.update(all);
return md.digest();
} catch (UnsupportedEncodingException e) {
final String message = String
.format("Caught UnsupportedEncodingException e: <%s>", e.getMessage());
LOGGER.error(message);
}
return new byte[0];
}
@Override public boolean isExpectedPassword(final String password, final byte[] salt, final byte[] hash) {
Validate.notNull(password, "Password must not be null");
Validate.notNull(salt, "Salt must not be null");
Validate.notNull(hash, "Hash must not be null");
try {
final byte[] passwordBytes = password.getBytes("UTF-8");
final byte[] all = ArrayUtils.addAll(passwordBytes, salt);
SHA3.DigestSHA3 md = new SHA3.Digest512();
md.update(all);
final byte[] digest = md.digest();
return Arrays.equals(digest, hash);
}catch(UnsupportedEncodingException e){
final String message =
String.format("Caught UnsupportedEncodingException e: <%s>", e.getMessage());
LOGGER.error(message);
}
return false;
}
@Override public String generateRandomPassword(final int length) {
if (length < 1) {
throw new IllegalArgumentException("length must be greater than 0");
}
final char[] buf = new char[length];
for (int idx = 0; idx < buf.length; ++idx) {
buf[idx] = symbols[RANDOM.nextInt(symbols.length)];
}
return shuffle(new String(buf));
}
private String shuffle(final String input){
final List<Character> characters = new ArrayList<Character>();
for(char c:input.toCharArray()){
characters.add(c);
}
final StringBuilder output = new StringBuilder(input.length());
while(characters.size()!=0){
int randPicker = (int)(Math.random()*characters.size());
output.append(characters.remove(randPicker));
}
return output.toString();
}
}
The test cases:
public class PasswordsTest {
private static final Logger LOGGER = Logger.getLogger(PasswordsTest.class);
@Before
public void setup(){
BasicConfigurator.configure();
}
@Test
public void testGeSalt() throws Exception {
IPasswords passwords = new Passwords();
final byte[] bytes = passwords.getSalt(0);
int arrayLength = bytes.length;
assertThat("Expected length is", arrayLength, is(64));
}
@Test
public void testGeSalt32() throws Exception {
IPasswords passwords = new Passwords();
final byte[] bytes = passwords.getSalt32();
int arrayLength = bytes.length;
assertThat("Expected length is", arrayLength, is(32));
}
@Test
public void testGeSalt64() throws Exception {
IPasswords passwords = new Passwords();
final byte[] bytes = passwords.getSalt64();
int arrayLength = bytes.length;
assertThat("Expected length is", arrayLength, is(64));
}
@Test
public void testHash() throws Exception {
IPasswords passwords = new Passwords();
final byte[] hash = passwords.hash("holacomoestas", passwords.getSalt64());
assertThat("Array is not null", hash, Matchers.notNullValue());
}
@Test
public void testSHA3() throws UnsupportedEncodingException {
SHA3.DigestSHA3 md = new SHA3.Digest256();
md.update("holasa".getBytes("UTF-8"));
final byte[] digest = md.digest();
assertThat("expected digest is:",digest,Matchers.notNullValue());
}
@Test
public void testIsExpectedPasswordIncorrect() throws Exception {
String password = "givemebeer";
IPasswords passwords = new Passwords();
final byte[] salt64 = passwords.getSalt64();
final byte[] hash = passwords.hash(password, salt64);
//The salt and the hash go to database.
final boolean isPasswordCorrect = passwords.isExpectedPassword("jfjdsjfsd", salt64, hash);
assertThat("Password is not correct", isPasswordCorrect, is(false));
}
@Test
public void testIsExpectedPasswordCorrect() throws Exception {
String password = "givemebeer";
IPasswords passwords = new Passwords();
final byte[] salt64 = passwords.getSalt64();
final byte[] hash = passwords.hash(password, salt64);
//The salt and the hash go to database.
final boolean isPasswordCorrect = passwords.isExpectedPassword("givemebeer", salt64, hash);
assertThat("Password is correct", isPasswordCorrect, is(true));
}
@Test
public void testGenerateRandomPassword() throws Exception {
IPasswords passwords = new Passwords();
final String randomPassword = passwords.generateRandomPassword(10);
LOGGER.info(randomPassword);
assertThat("Random password is not null", randomPassword, Matchers.notNullValue());
}
}
pom.xml (only dependencies):
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<version>6.1.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.hamcrest</groupId>
<artifactId>hamcrest-all</artifactId>
<version>1.3</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>
<dependency>
<groupId>org.bouncycastle</groupId>
<artifactId>bcprov-jdk15on</artifactId>
<version>1.51</version>
<type>jar</type>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.3.2</version>
</dependency>
</dependencies>
If you need Set
rather than List
, you can use EnumSet.allOf().
Set<EnumerationClass> set = EnumSet.allOf(EnumerationClass.class);
Update: JakeRobb is right. My answer is about java.lang.Enum instead of java.util.Enumeration. Sorry for unrelated answer.
.show-grid [class*="span"]
It's a CSS selector that selects all elements with the class show-grid that has a child element whose class contains the name span.
Maybe what you need is par(xpd=TRUE)
to enable things to be drawn outside the plot region. So if you do the main plot with bty='L'
you'll have some space on the right for a legend. Normally this would get clipped to the plot region, but do par(xpd=TRUE)
and with a bit of adjustment you can get a legend as far right as it can go:
set.seed(1) # just to get the same random numbers
par(xpd=FALSE) # this is usually the default
plot(1:3, rnorm(3), pch = 1, lty = 1, type = "o", ylim=c(-2,2), bty='L')
# this legend gets clipped:
legend(2.8,0,c("group A", "group B"), pch = c(1,2), lty = c(1,2))
# so turn off clipping:
par(xpd=TRUE)
legend(2.8,-1,c("group A", "group B"), pch = c(1,2), lty = c(1,2))
A more general solution
axios({
url: 'http://api.dev/file-download', //your url
method: 'GET',
responseType: 'blob', // important
}).then((response) => {
const url = window.URL.createObjectURL(new Blob([response.data]));
const link = document.createElement('a');
link.href = url;
link.setAttribute('download', 'file.pdf'); //or any other extension
document.body.appendChild(link);
link.click();
});
Check out the quirks at https://gist.github.com/javilobo8/097c30a233786be52070986d8cdb1743
Full credits to: https://gist.github.com/javilobo8
If you have background on that element, then, adding padding would be useless.
So, in this case, you can use background-clip: content-box; or outline-offset
Explanation: If you use wrapper, then it would be simple to separate the background from border. But if you want to style the same element, which has a background, no matter how much padding you would add, there would be no space between background and border, unless you use background-clip or outline-offset
Both do the same work as they are used for routing purposes in SPA(Single Page Application).
URLs to controllers and views (HTML partials). It watches $location.url() and tries to map the path to an existing route definition.
HTML
<div ng-view></div>
Above tag will render the template from the $routeProvider.when()
condition which you had mentioned in .config
(configuration phase) of angular
Limitations:-
ng-view
on page$routeProvider
fails. (to achieve that, we need to use directives like ng-include
, ng-switch
, ng-if
, ng-show
, which looks bad to have them in SPA)AngularUI Router is a routing framework for AngularJS, which allows you to organize the parts of your interface into a state machine. UI-Router is organized around states, which may optionally have routes, as well as other behavior, attached.
Multiple & Named Views
Another great feature is the ability to have multiple ui-views in a template.
While multiple parallel views are a powerful feature, you'll often be able to manage your interfaces more effectively by nesting your view
s, and pairing those views with nested states.
HTML
<div ui-view>
<div ui-view='header'></div>
<div ui-view='content'></div>
<div ui-view='footer'></div>
</div>
The majority of ui-router
's power is it can manage nested state & views.
Pros
ui-view
on single pageui-view="some"
of state just by using absolute routing using @
with state name.@
to change ui-view="some"
. This will replace the ui-view
rather than checking if it is nested or not.ui-sref
to create a href
URL dynamically on the basis of URL
mentioned in a state, also you could give a state params in the json
format.For more Information Angular ui-router
For better flexibility with various nested view with states, I'd prefer you to go for ui-router
The following might help you:
ini_set('max_execution_time', 100000);
And in your mysql - max_allowed_packet=100M
in some cases where queries are too long sql also produce and error "MySQL server has gone away";
Change the values to whatever you need.
I've always used the term "magic number" differently, as an obscure value stored within a data structure which can be verified as a quick validity check. For example gzip files contain 0x1f8b08 as their first three bytes, Java class files start with 0xcafebabe, etc.
You often see magic numbers embedded in file formats, because files can be sent around rather promiscuously and lose any metadata about how they were created. However magic numbers are also sometimes used for in-memory data structures, like ioctl() calls.
A quick check of the magic number before processing the file or data structure allows one to signal errors early, rather than schlep all the way through potentially lengthy processing in order to announce that the input was complete balderdash.
GCM is being replaced with FCM
Have a look at developers.android.com - Google replaced C2DM with GCM Demo Implementation / How To
1) You need to check on the server what HTTP response you are getting from the Google servers. Make sure it is a 200 OK response, so you know the message was sent. If you get another response (302, etc) then the message is not being sent successfully.
2) You also need to check that the Registration ID you are using is correct. If you provide the wrong Registration ID (as a destination for the message - specifying the app, on a specific device) then the Google servers cannot successfully send it.
3) You also need to check that your app is successfully registering with the Google servers, to receive push notifications. If the registration fails, you will not receive messages.
Here is a good question you may should have a look at it: How to add a push notification in my own android app
Also here is a good blog with a really simple how to: http://blog.serverdensity.com/android-push-notifications-tutorial/
This solution helped me to skip the number of lines specified by the linetostart
variable.
You get the index (int) and the line (string) if you want to keep track of those too.
In your case, you substitute linetostart with 18, or assign 18 to linetostart variable.
f = open("file.txt", 'r')
for i, line in enumerate(f, linetostart):
#Your code
Python 3
class MyClass(object):
= New-style classclass MyClass:
= New-style class (implicitly inherits from object
)Python 2
class MyClass(object):
= New-style classclass MyClass:
= OLD-STYLE CLASSExplanation:
When defining base classes in Python 3.x, you’re allowed to drop the object
from the definition. However, this can open the door for a seriously hard to track problem…
Python introduced new-style classes back in Python 2.2, and by now old-style classes are really quite old. Discussion of old-style classes is buried in the 2.x docs, and non-existent in the 3.x docs.
The problem is, the syntax for old-style classes in Python 2.x is the same as the alternative syntax for new-style classes in Python 3.x. Python 2.x is still very widely used (e.g. GAE, Web2Py), and any code (or coder) unwittingly bringing 3.x-style class definitions into 2.x code is going to end up with some seriously outdated base objects. And because old-style classes aren’t on anyone’s radar, they likely won’t know what hit them.
So just spell it out the long way and save some 2.x developer the tears.
You can use Database Engine Tuning Advisor.
This tool is for improving the query performances by examining the way queries are processed and recommended enhancements by specific indexes.
How to use the Database Engine Tuning Advisor?
1- Copy the select statement that you need to speed up into the new query.
2- Parse (Ctrl+F5).
3- Press The Icon of the (Database Engine Tuning Advisor).
Since this issue happened because calling model another time. Work around to this issue by wrapping your model code in try catch block. typescript code is like this -
Import {Schema, model} from 'mongoose';
export function user(){
try{
return model('user', new Schema ({
FirstName: String,
Last name: String
}));
}
catch{
return model('user');
}
}
Similarly you can write code in js too.
Actually I used my script in html directly. But in javascript when you add oninput event listener for this event it gives the data automatically.You just need to assign the value as per your requirement.
[slider] {_x000D_
width: 300px;_x000D_
position: relative;_x000D_
height: 5px;_x000D_
margin: 45px 0 10px 0;_x000D_
}_x000D_
_x000D_
[slider] > div {_x000D_
position: absolute;_x000D_
left: 13px;_x000D_
right: 15px;_x000D_
height: 5px;_x000D_
}_x000D_
[slider] > div > [inverse-left] {_x000D_
position: absolute;_x000D_
left: 0;_x000D_
height: 5px;_x000D_
border-radius: 10px;_x000D_
background-color: #CCC;_x000D_
margin: 0 7px;_x000D_
}_x000D_
_x000D_
[slider] > div > [inverse-right] {_x000D_
position: absolute;_x000D_
right: 0;_x000D_
height: 5px;_x000D_
border-radius: 10px;_x000D_
background-color: #CCC;_x000D_
margin: 0 7px;_x000D_
}_x000D_
_x000D_
_x000D_
[slider] > div > [range] {_x000D_
position: absolute;_x000D_
left: 0;_x000D_
height: 5px;_x000D_
border-radius: 14px;_x000D_
background-color: #d02128;_x000D_
}_x000D_
_x000D_
[slider] > div > [thumb] {_x000D_
position: absolute;_x000D_
top: -7px;_x000D_
z-index: 2;_x000D_
height: 20px;_x000D_
width: 20px;_x000D_
text-align: left;_x000D_
margin-left: -11px;_x000D_
cursor: pointer;_x000D_
box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);_x000D_
background-color: #FFF;_x000D_
border-radius: 50%;_x000D_
outline: none;_x000D_
}_x000D_
_x000D_
[slider] > input[type=range] {_x000D_
position: absolute;_x000D_
pointer-events: none;_x000D_
-webkit-appearance: none;_x000D_
z-index: 3;_x000D_
height: 14px;_x000D_
top: -2px;_x000D_
width: 100%;_x000D_
opacity: 0;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]:focus::-webkit-slider-runnable-track {_x000D_
background: transparent;_x000D_
border: transparent;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]:focus {_x000D_
outline: none;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]::-webkit-slider-thumb {_x000D_
pointer-events: all;_x000D_
width: 28px;_x000D_
height: 28px;_x000D_
border-radius: 0px;_x000D_
border: 0 none;_x000D_
background: red;_x000D_
-webkit-appearance: none;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]::-ms-fill-lower {_x000D_
background: transparent;_x000D_
border: 0 none;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]::-ms-fill-upper {_x000D_
background: transparent;_x000D_
border: 0 none;_x000D_
}_x000D_
_x000D_
div[slider] > input[type=range]::-ms-tooltip {_x000D_
display: none;_x000D_
}_x000D_
_x000D_
[slider] > div > [sign] {_x000D_
opacity: 0;_x000D_
position: absolute;_x000D_
margin-left: -11px;_x000D_
top: -39px;_x000D_
z-index:3;_x000D_
background-color: #d02128;_x000D_
color: #fff;_x000D_
width: 28px;_x000D_
height: 28px;_x000D_
border-radius: 28px;_x000D_
-webkit-border-radius: 28px;_x000D_
align-items: center;_x000D_
-webkit-justify-content: center;_x000D_
justify-content: center;_x000D_
text-align: center;_x000D_
}_x000D_
_x000D_
[slider] > div > [sign]:after {_x000D_
position: absolute;_x000D_
content: '';_x000D_
left: 0;_x000D_
border-radius: 16px;_x000D_
top: 19px;_x000D_
border-left: 14px solid transparent;_x000D_
border-right: 14px solid transparent;_x000D_
border-top-width: 16px;_x000D_
border-top-style: solid;_x000D_
border-top-color: #d02128;_x000D_
}_x000D_
_x000D_
[slider] > div > [sign] > span {_x000D_
font-size: 12px;_x000D_
font-weight: 700;_x000D_
line-height: 28px;_x000D_
}_x000D_
_x000D_
[slider]:hover > div > [sign] {_x000D_
opacity: 1;_x000D_
}
_x000D_
<div slider id="slider-distance">_x000D_
<div>_x000D_
<div inverse-left style="width:70%;"></div>_x000D_
<div inverse-right style="width:70%;"></div>_x000D_
<div range style="left:0%;right:0%;"></div>_x000D_
<span thumb style="left:0%;"></span>_x000D_
<span thumb style="left:100%;"></span>_x000D_
<div sign style="left:0%;">_x000D_
<span id="value">0</span>_x000D_
</div>_x000D_
<div sign style="left:100%;">_x000D_
<span id="value">100</span>_x000D_
</div>_x000D_
</div>_x000D_
<input type="range" value="0" max="100" min="0" step="1" oninput="_x000D_
this.value=Math.min(this.value,this.parentNode.childNodes[5].value-1);_x000D_
let value = (this.value/parseInt(this.max))*100_x000D_
var children = this.parentNode.childNodes[1].childNodes;_x000D_
children[1].style.width=value+'%';_x000D_
children[5].style.left=value+'%';_x000D_
children[7].style.left=value+'%';children[11].style.left=value+'%';_x000D_
children[11].childNodes[1].innerHTML=this.value;" />_x000D_
_x000D_
<input type="range" value="100" max="100" min="0" step="1" oninput="_x000D_
this.value=Math.max(this.value,this.parentNode.childNodes[3].value-(-1));_x000D_
let value = (this.value/parseInt(this.max))*100_x000D_
var children = this.parentNode.childNodes[1].childNodes;_x000D_
children[3].style.width=(100-value)+'%';_x000D_
children[5].style.right=(100-value)+'%';_x000D_
children[9].style.left=value+'%';children[13].style.left=value+'%';_x000D_
children[13].childNodes[1].innerHTML=this.value;" />_x000D_
</div>
_x000D_
Simple, ORDER BY
orders the data and GROUP BY
groups, or combines the data.
ORDER BY
orders the result set as per the mentioned field, by default in ascending order.
Suppose you are firing a query as ORDER BY (student_roll_number)
, it will show you result in ascending order of student's roll numbers. Here, student_roll_number
entry might occur more than once.
In GROUP BY
case, we use this with aggregate functions, and it groups the data as per the aggregate function, and we get the result. Here, if our query has SUM (marks)
along with GROUP BY (student_first_name)
it will show the sum of marks of students belonging to each group (where all members of a group will have the same first name).
You could follow this example:
#!/usr/bin/env python
"""
Use a pcolor or imshow with a custom colormap to make a contour plot.
Since this example was initially written, a proper contour routine was
added to matplotlib - see contour_demo.py and
http://matplotlib.sf.net/matplotlib.pylab.html#-contour.
"""
from pylab import *
delta = 0.01
x = arange(-3.0, 3.0, delta)
y = arange(-3.0, 3.0, delta)
X,Y = meshgrid(x, y)
Z1 = bivariate_normal(X, Y, 1.0, 1.0, 0.0, 0.0)
Z2 = bivariate_normal(X, Y, 1.5, 0.5, 1, 1)
Z = Z2 - Z1 # difference of Gaussians
cmap = cm.get_cmap('PiYG', 11) # 11 discrete colors
im = imshow(Z, cmap=cmap, interpolation='bilinear',
vmax=abs(Z).max(), vmin=-abs(Z).max())
axis('off')
colorbar()
show()
which produces the following image:
Trailing_commas is recognized as a non-standard JSON format, which is recognized as the correct format under the RFC 8259/RFC 7159 standard (you can verify it here JSON Formatter/Validator), but there will be warnings. However, it is being parsed Sometimes, Trailing_commas will be abnormal
If you go to http://github.com/my_user_name/my_repo you will see a textbox where you can select the git path to your repository. You'll want to use this!
Also you can bind to the public static members of the enum directly by using reflection:
typeof(Suit).GetMembers(BindingFlags.Public | BindingFlags.Static)
.ToList().ForEach(x => DoSomething(x.Name));