In a REST API, you shouldn't be overly concerned by predictable URI's. The very suggestion of URI predictability alludes to a misunderstanding of RESTful architecture. It assumes that a client should be constructing URIs themselves, which they really shouldn't have to.
However, I assume that you are not creating a true REST API, but a 'REST inspired' API (such as the Google Drive one). In these cases the rule of thumb is 'path params = resource identification' and 'query params = resource sorting'. So, the question becomes, can you uniquely identify your resource WITHOUT status / region? If yes, then perhaps its a query param. If no, then its a path param.
HTH.
Interesting discussion regarding Designing REST API for returning count of multiple objects: https://groups.google.com/g/api-craft/c/qbI2QRrpFew/m/h30DYnrqEwAJ?pli=1
As an API consumer, I would expect each count value to be represented either as a subresource to the countable resource (i.e. GET /tasks/count for a count of tasks), or as a field in a bigger aggregation of metadata related to the concerned resource (i.e. GET /tasks/metadata). By scoping related endpoints under the same parent resource (i.e. /tasks), the API becomes intuitive, and the purpose of an endpoint can (usually) be inferred from its path and HTTP method.
Additional thoughts:
- If each individual count is only useful in combination with other counts (for a statistics dashboard, for example), you could possibly expose a single endpoint which aggregates and returns all counts at once.
- If you have an existing endpoint for listing all resources (i.e. GET /tasks for listing all tasks), the count could be included in the response as metadata, either as HTTP headers or in the response body. Doing this will incur unnecessary load on the API, which might be negligible depending on your use case.
Welcome to the wonderful world of Angular !!
I am very new to angularJS. I am searching for accessing services from RESTful API but I didn't get any idea. please help me to do that. Thank you
There are two (very big) hurdles to writing your first Angular scripts, if you're currently using 'GET' services.
First, your services must implement the "Access-Control-Allow-Origin" property, otherwise the services will work a treat when called from, say, a web browser, but fail miserably when called from Angular.
So, you'll need to add a few lines to your web.config file:
<configuration>
...
<system.webServer>
<httpErrors errorMode="Detailed"/>
<validation validateIntegratedModeConfiguration="false"/>
<!-- We need the following 6 lines, to let AngularJS call our REST web services -->
<httpProtocol>
<customHeaders>
<add name="Access-Control-Allow-Origin" value="*"/>
<add name="Access-Control-Allow-Headers" value="Content-Type"/>
</customHeaders>
</httpProtocol>
</system.webServer>
...
</configuration>
Next, you need to add a little bit of code to your HTML file, to force Angular to call 'GET' web services:
// Make sure AngularJS calls our WCF Service as a "GET", rather than as an "OPTION"
var myApp = angular.module('myApp', []);
myApp.config(['$httpProvider', function ($httpProvider) {
$httpProvider.defaults.useXDomain = true;
delete $httpProvider.defaults.headers.common['X-Requested-With'];
}]);
Once you have these fixes in place, actually calling a RESTful API is really straightforward.
function YourAngularController($scope, $http)
{
$http.get('http://www.iNorthwind.com/Service1.svc/getAllCustomers')
.success(function (data) {
//
// Do something with the data !
//
});
}
You can find a really clear walkthrough of these steps on this webpage:
Good luck !
Mike
As @Ravi_MCA mentioned, /users?ids[]=id1&ids[]=id2
worked for me, too.
{"params":["arg1", "arg2", ...]}
You can even use JSON object instead of array.
Well, apparently I had to change my PUT calling function updateUser
. I removed the @Consumes
, the @RequestMapping
and also added a @ResponseBody
to the function. So my method looked like this:
@RequestMapping(value="/{id}",method = RequestMethod.PUT)
@ResponseStatus(HttpStatus.OK)
@ResponseBody
public void updateUser(@PathVariable int id, @RequestBody User temp){
Set<User> set1= obj2.getUsers();
for(User a:set1)
{
if(id==a.getId())
{
set1.remove(a);
a.setId(temp.getId());
a.setName(temp.getName());
set1.add(a);
}
}
Userlist obj3=new Userlist(set1);
obj2=obj3;
}
And it worked!!! Thank you all for the response.
It is recommended to use the spinal-case (which is highlighted by RFC3986), this case is used by Google, PayPal, and other big companies.
source:- https://blog.restcase.com/5-basic-rest-api-design-guidelines/
I had a similar problem with ASP with my pages. I've resolved so:
1) Inserted at the begin of the ASP file called by Jquery ajax method the instruction:
Response.Charset = "windows-1252"
In My asp page before the charset wasn't defined and i had saved my file with ANSI encoding (with a text editor as notepad++)
2) In the html file that calls the ASP file with the jquery ajax method i've inserted the parameter content-type that you see below:
$.ajax({
data: parameters,
type: "POST",
url: ajax_url,
datatype: 'html',
contentType: "text/html;charset=windows-1252",
Briefly, it's important to define in your ASP file called the charset. Strangely, I see that my jquery works with windows-1252 but doesn't work with ISO-8859-1 charset: in this case jquery ajax method give an exception.
The default location for python.exe should be here: c:\users\xxx\anaconda3
One solution to find where it is, is to open the Anaconda Prompt then execute:
> where python
This will return the absolute path of locations of python eg:
(base) C:\>where python
C:\Users\Chad\Anaconda3\python.exe
C:\ProgramData\Miniconda2\python.exe
C:\dev\Python27\python.exe
C:\dev\Python34\python.exe
You could try this:
<input type="file" capture="camera" accept="image/*" id="cameraInput" name="cameraInput">
but it has to be iOS 6+ to work. That will give you a nice dialogue for you to choose either to take a picture or to upload one from your album i.e.
An example can be found here: Capturing camera/picture data without PhoneGap
Edit: now there is yet an easier way to do this - when creating your group, just mention the full bot name (eg. @UniversalAgent1Bot) and it will list it as you type. Then you can just tap on it to add it.
Old answer:
I like the approach and implemented it on server-side without doing any authentication related thing on front-end
My 'technique' on my latest app is.. the client doesn't care about Auth. Every single thing in the app requires a login first, so the server just always serves a login page unless an existing user is detected in the session. If session.user is found, the server just sends index.html. Bam :-o
Look for the comment by "Andrew Joslin".
There is a free library called barcode4j
You could use Canvas
in HTML, simply add a canva
<canvas id="locations" width="400" height="300" style="border:1px solid #d3d3d3;">
Your browser can't read canvas</canvas>
And in Javascript (only an example, that will draw a rectangle on the picture)
var c = document.getElementById("locations");
var ctx = c.getContext("2d");
var img = new Image();
img.src = '{main_photo}';
img.onload = function() { // after the pic is loaded
ctx.drawImage(this,0,0); // add the picture
ctx.beginPath(); // start the rectangle
ctx.moveTo(50,50);
ctx.lineTo(200,50);
ctx.lineTo(200,200);
ctx.lineTo(50,200);
ctx.lineTo(50,50);
ctx.strokeStyle = "sienna"; // set color
ctx.stroke(); // apply color
ctx.lineWidth = 5;
// ctx.closePath();
};
fwrite()
is a smidgen faster and file_put_contents()
is just a wrapper around those three methods anyway, so you would lose the overhead.
Article
file_put_contents(file,data,mode,context):
The file_put_contents
writes a string to a file.
This function follows these rules when accessing a file.If FILE_USE_INCLUDE_PATH is set, check the include path for a copy of filename Create the file if it does not exist then Open the file and Lock the file if LOCK_EX is set and If FILE_APPEND is set, move to the end of the file. Otherwise, clear the file content Write the data into the file and Close the file and release any locks. This function returns the number of the character written into the file on success, or FALSE on failure.
fwrite(file,string,length):
The fwrite
writes to an open file.The function will stop at the end of the file or when it reaches the specified length,
whichever comes first.This function returns the number of bytes written or FALSE on failure.
autoconf
and automake
:configure
, make
and sudo make install
:./configure # Creates Makefile (from Makefile.in).
make # Creates the application (from the Makefile just created).
sudo make install # Installs the application
# Often, by default its files are installed into /usr/local
Notation below is roughly: inputs --> programs --> outputs
DEVELOPER runs these:
configure.ac -> autoconf -> configure (script) --- (*.ac = autoconf)
configure.in --> autoconf -> configure (script) --- (configure.in
depreciated. Use configure.ac)
Makefile.am -> automake -> Makefile.in ----------- (*.am = automake)
INSTALLER runs these:
Makefile.in -> configure -> Makefile (*.in = input file)
Makefile -> make ----------> (puts new software in your downloads or temporary directory)
Makefile -> make install -> (puts new software in system directories)
"autoconf is an extensible package of M4 macros that produce shell scripts to automatically configure software source code packages. These scripts can adapt the packages to many kinds of UNIX-like systems without manual user intervention. Autoconf creates a configuration script for a package from a template file that lists the operating system features that the package can use, in the form of M4 macro calls."
"automake is a tool for automatically generating Makefile.in files compliant with the GNU Coding Standards. Automake requires the use of Autoconf."
Manuals:
GNU AutoTools (The definitive manual on this stuff)
m4 (used by autoconf)
Free online tutorials:
The main configure.ac used to build LibreOffice is over 12k lines of code, (but there are also 57 other configure.ac files in subfolders.)
From this my generated configure is over 41k lines of code.
And while the Makefile.in and Makefile are both only 493 lines of code. (But, there are also 768 more Makefile.in's in subfolders.)
Looking forward to Web Animations in 2020.
async function moveToPosition(el, durationInMs) {
return new Promise((resolve) => {
const animation = el.animate([{
opacity: '0'
},
{
transform: `translateY(${el.getBoundingClientRect().top}px)`
},
], {
duration: durationInMs,
easing: 'ease-in',
iterations: 1,
direction: 'normal',
fill: 'forwards',
delay: 0,
endDelay: 0
});
animation.onfinish = () => resolve();
});
}
async function fadeIn(el, durationInMs) {
return new Promise((resolve) => {
const animation = el.animate([{
opacity: '0'
},
{
opacity: '0.5',
offset: 0.5
},
{
opacity: '1',
offset: 1
}
], {
duration: durationInMs,
easing: 'linear',
iterations: 1,
direction: 'normal',
fill: 'forwards',
delay: 0,
endDelay: 0
});
animation.onfinish = () => resolve();
});
}
async function fadeInSections() {
for (const section of document.getElementsByTagName('section')) {
await fadeIn(section, 200);
}
}
window.addEventListener('load', async() => {
await moveToPosition(document.getElementById('headerContent'), 500);
await fadeInSections();
await fadeIn(document.getElementsByTagName('footer')[0], 200);
});
_x000D_
body,
html {
height: 100vh;
}
header {
height: 20%;
}
.text-center {
text-align: center;
}
.leading-none {
line-height: 1;
}
.leading-3 {
line-height: .75rem;
}
.leading-2 {
line-height: .25rem;
}
.bg-black {
background-color: rgba(0, 0, 0, 1);
}
.bg-gray-50 {
background-color: rgba(249, 250, 251, 1);
}
.pt-12 {
padding-top: 3rem;
}
.pt-2 {
padding-top: 0.5rem;
}
.text-lightGray {
color: lightGray;
}
.container {
display: flex;
/* or inline-flex */
justify-content: space-between;
}
.container section {
padding: 0.5rem;
}
.opacity-0 {
opacity: 0;
}
_x000D_
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<link rel="icon" href="/favicon.ico" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Web site created using create-snowpack-app" />
<link rel="stylesheet" type="text/css" href="./assets/syles/index.css" />
</head>
<body>
<header class="bg-gray-50">
<div id="headerContent">
<h1 class="text-center leading-none pt-2 leading-2">Hello</h1>
<p class="text-center leading-2"><i>Ipsum lipmsum emus tiris mism</i></p>
</div>
</header>
<div class="container">
<section class="opacity-0">
<h2 class="text-center"><i>ipsum 1</i></h2>
<p>Cras purus ante, dictum non ultricies eu, dapibus non tellus. Nam et ipsum nec nunc vestibulum efficitur nec nec magna. Proin sodales ex et finibus congue</p>
</section>
<section class="opacity-0">
<h2 class="text-center"><i>ipsum 2</i></h2>
<p>Cras purus ante, dictum non ultricies eu, dapibus non tellus. Nam et ipsum nec nunc vestibulum efficitur nec nec magna. Proin sodales ex et finibus congue</p>
</section>
<section class="opacity-0">
<h2 class="text-center"><i>ipsum 3</i></h2>
<p>Cras purus ante, dictum non ultricies eu, dapibus non tellus. Nam et ipsum nec nunc vestibulum efficitur nec nec magna. Proin sodales ex et finibus congue</p>
</section>
</div>
<footer class="opacity-0">
<h1 class="text-center leading-3 text-lightGray"><i>dictum non ultricies eu, dapibus non tellus</i></h1>
<p class="text-center leading-3"><i>Ipsum lipmsum emus tiris mism</i></p>
</footer>
</body>
</html>
_x000D_
It's in https://console.firebase.google.com/project/(your-project-id)/settings/cloudmessaging
You can find the API KEY in:
(gear-next-to-project-name) > Project Settings > Cloud Messaging
Server Key is the API key.
Here's what I came up with.
(function () {
var staticVar = 0;
var yrObj = function () {
var private = {"a":1,"b":2};
var MyObj = function () {
private.a += staticVar;
staticVar++;
};
MyObj.prototype = {
"test" : function () {
console.log(private.a);
}
};
return new MyObj;
};
window.YrObj = yrObj;
}());
var obj1 = new YrObj;
var obj2 = new YrObj;
obj1.test(); // 1
obj2.test(); // 2
the main problem with this implementation is that it redefines the prototypes on every instanciation.
It seem to ignore the settings for the current active transaction, it only apply settings to a new transaction:
org.springframework.transaction.PlatformTransactionManager TransactionStatus getTransaction(TransactionDefinition definition) throws TransactionException Return a currently active transaction or create a new one, according to the specified propagation behavior. Note that parameters like isolation level or timeout will only be applied to new transactions, and thus be ignored when participating in active ones. Furthermore, not all transaction definition settings will be supported by every transaction manager: A proper transaction manager implementation should throw an exception when unsupported settings are encountered. An exception to the above rule is the read-only flag, which should be ignored if no explicit read-only mode is supported. Essentially, the read-only flag is just a hint for potential optimization.
You can use request.build_absolute_uri()
By default, it will return a full path.
But if you pass in a parameter like this:
request.build_absolute_uri('/')
This would return the domain name.
This is what I did:
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component {
selectedEntry = [allEntries objectAtIndex:row];
}
The selectedEntry
is a NSString
and will hold the currently selected entry in the pickerview. I am new to objective C but I think this is much easier.
There is simple answer in the official guide:
What does it not do?
It does not cause a full page reload when the browser URL is changed. To reload the page after changing the URL, use the lower-level API, $window.location.href.
In short, if you have multiple routes defined for your app's routing, enclosed with Switch
component like this;
<Switch>
<Route exact path="/" component={Home} />
<Route path="/detail" component={Detail} />
<Route exact path="/functions" component={Functions} />
<Route path="/functions/:functionName" component={FunctionDetails} />
</Switch>
Then you have to put exact
keyword to the Route which it's path is also included by another Route's path. For example home path /
is included in all paths so it needs to have exact
keyword to differentiate it from other paths which start with /
. The reason is also similar to /functions
path. If you want to use another route path like /functions-detail
or /functions/open-door
which includes /functions
in it then you need to use exact
for the /functions
route.
For Swift 5, we can check it in view will disappear
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
if self.isMovingFromParent {
delegate?.passValue(clickedImage: selectedImage)
}
}
use get_loaded_extensions()
PHP function
You can add a form onsubmit handler, something like:
<form onsubmit="return validate();">
</form>
<script>function validate() {
// check if input is bigger than 3
var value = document.getElementById('titleeee').value;
if (value.length < 3) {
return false; // keep form from submitting
}
// else form is good let it submit, of course you will
// probably want to alert the user WHAT went wrong.
return true;
}</script>
Apply this style to your TextBox and that's it (inspired from this article):
<Style x:Key="SelectableTextBlockLikeStyle" TargetType="TextBox" BasedOn="{StaticResource {x:Type TextBox}}">
<Setter Property="IsReadOnly" Value="True"/>
<Setter Property="IsTabStop" Value="False"/>
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Padding" Value="-2,0,0,0"/>
<!-- The Padding -2,0,0,0 is required because the TextBox
seems to have an inherent "Padding" of about 2 pixels.
Without the Padding property,
the text seems to be 2 pixels to the left
compared to a TextBlock
-->
<Style.Triggers>
<MultiTrigger>
<MultiTrigger.Conditions>
<Condition Property="IsMouseOver" Value="False" />
<Condition Property="IsFocused" Value="False" />
</MultiTrigger.Conditions>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TextBox}">
<TextBlock Text="{TemplateBinding Text}"
FontSize="{TemplateBinding FontSize}"
FontStyle="{TemplateBinding FontStyle}"
FontFamily="{TemplateBinding FontFamily}"
FontWeight="{TemplateBinding FontWeight}"
TextWrapping="{TemplateBinding TextWrapping}"
Foreground="{DynamicResource NormalText}"
Padding="0,0,0,0"
/>
</ControlTemplate>
</Setter.Value>
</Setter>
</MultiTrigger>
</Style.Triggers>
</Style>
Try these:
window.location.href = 'http://www.google.com';
window.location.assign("http://www.w3schools.com");
window.location = 'http://www.google.com';
For more see this link: other ways to reload the page with JavaScript
There is a case I often use. I have a IdUtil
class with static methods to work with objects implementing a very simple Identifiable
interface:
public interface Identifiable<K> {
K getId();
}
public abstract class IdUtil {
public static <T extends Enum<T> & Identifiable<S>, S> T get(Class<T> type, S id) {
for (T t : type.getEnumConstants()) {
if (Util.equals(t.getId(), id)) {
return t;
}
}
return null;
}
public static <T extends Enum<T> & Identifiable<S>, S extends Comparable<? super S>> List<T> getLower(T en) {
List<T> list = new ArrayList<>();
for (T t : en.getDeclaringClass().getEnumConstants()) {
if (t.getId().compareTo(en.getId()) < 0) {
list.add(t);
}
}
return list;
}
}
If I create an Identifiable
enum
:
public enum MyEnum implements Identifiable<Integer> {
FIRST(1), SECOND(2);
private int id;
private MyEnum(int id) {
this.id = id;
}
public Integer getId() {
return id;
}
}
Then I can get it by its id
this way:
MyEnum e = IdUtil.get(MyEnum.class, 1);
For me, the model was fine. It was because I had 2 different versions of entity framework. One version for the web project and another one for the common project which contains the models.
I just had to consolidate the nuget packages.
Enjoy!
In my case, this error occur when i tried to use gridView
I resolved it by removing this line from build.grade(Module) file
implementation 'com.android.support:gridlayout-v7:28.0.0-alpha3'
An enhanced for
loop is just limiting the number of parameters inside the parenthesis.
for (int i = 0; i < myArray.length; i++) {
System.out.println(myArray[i]);
}
Can be written as:
for (int myValue : myArray) {
System.out.println(myValue);
}
For my case, below worked on Mac:
I could not access container IPs directly on Mac. I need to use localhost
with port forwarding, e.g. if the port is 8000, then http://localhost:8000
See https://docs.docker.com/docker-for-mac/networking/#known-limitations-use-cases-and-workarounds
The original answer was from: https://github.com/docker/for-mac/issues/2670#issuecomment-371249949
This is here:
<button onClick="window.location='page_name.php';" value="click here" />
Only the first argument differs:
In more detail...
When an object's method is called, it is automatically given an extra argument self
as its first argument. That is, method
def f(self, x, y)
must be called with 2 arguments. self
is automatically passed, and it is the object itself.
When the method is decorated
@classmethod
def f(cls, x, y)
the automatically provided argument is not self
, but the class of self
.
When the method is decorated
@staticmethod
def f(x, y)
the method is not given any automatic argument at all. It is only given the parameters that it is called with.
classmethod
is mostly used for alternative constructors.staticmethod
does not use the state of the object. It could be a function external to a class. It only put inside the class for grouping functions with similar functionality (for example, like Java's Math
class static methods)class Point
def __init__(self, x, y):
self.x = x
self.y = y
@classmethod
def frompolar(cls, radius, angle):
"""The `cls` argument is the `Point` class itself"""
return cls(radius * cos(angle), radius * sin(angle))
@staticmethod
def angle(x, y):
"""this could be outside the class, but we put it here
just because we think it is logically related to the class."""
return atan(y, x)
p1 = Point(3, 2)
p2 = Point.frompolar(3, pi/4)
angle = Point.angle(3, 2)
You should use white-space with display table
Example:
legend {
display:table; /* Enable line-wrapping in IE8+ */
white-space:normal; /* Enable line-wrapping in old versions of some other browsers */
}
The kind of floating-point math that can be implemented in a digital computer necessarily uses an approximation of the real numbers and operations on them. (The standard version runs to over fifty pages of documentation and has a committee to deal with its errata and further refinement.)
This approximation is a mixture of approximations of different kinds, each of which can either be ignored or carefully accounted for due to its specific manner of deviation from exactitude. It also involves a number of explicit exceptional cases at both the hardware and software levels that most people walk right past while pretending not to notice.
If you need infinite precision (using the number p, for example, instead of one of its many shorter stand-ins), you should write or use a symbolic math program instead.
But if you're okay with the idea that sometimes floating-point math is fuzzy in value and logic and errors can accumulate quickly, and you can write your requirements and tests to allow for that, then your code can frequently get by with what's in your FPU.
There is no event raised when a class changes. The alternative is to manually raise an event when you programatically change the class:
$someElement.on('event', function() {
$('#myDiv').addClass('submission-ok').trigger('classChange');
});
// in another js file, far, far away
$('#myDiv').on('classChange', function() {
// do stuff
});
UPDATE
This question seems to be gathering some visitors, so here is an update with an approach which can be used without having to modify existing code using the new MutationObserver
:
var $div = $("#foo");_x000D_
var observer = new MutationObserver(function(mutations) {_x000D_
mutations.forEach(function(mutation) {_x000D_
if (mutation.attributeName === "class") {_x000D_
var attributeValue = $(mutation.target).prop(mutation.attributeName);_x000D_
console.log("Class attribute changed to:", attributeValue);_x000D_
}_x000D_
});_x000D_
});_x000D_
observer.observe($div[0], {_x000D_
attributes: true_x000D_
});_x000D_
_x000D_
$div.addClass('red');
_x000D_
.red { color: #C00; }
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="foo" class="bar">#foo.bar</div>
_x000D_
Be aware that the MutationObserver
is only available for newer browsers, specifically Chrome 26, FF 14, IE 11, Opera 15 and Safari 6. See MDN for more details. If you need to support legacy browsers then you will need to use the method I outlined in my first example.
Lets say each code is a function and its already written then the following can be used to iter through your coding list and exit the for-loop when a function is executed without error using the "break".
def a(): code a
def b(): code b
def c(): code c
def d(): code d
for func in [a, b, c, d]: # change list order to change execution order.
try:
func()
break
except Exception as err:
print (err)
continue
I used "Exception " here so you can see any error printed. Turn-off the print if you know what to expect and you're not caring (e.g. in case the code returns two or three list items (i,j = msg.split('.')).
You can create your own view and display it when application starts and hide it with timer. Please avoid delaying app start as its bad idea
I think that for simple HTTP requests like this it's better to use the request
module. You need to install it with npm (npm install request
) and then your code can look like this:
const request = require('request')
,url = 'http://graph.facebook.com/517267866/?fields=picture'
request(url, (error, response, body)=> {
if (!error && response.statusCode === 200) {
const fbResponse = JSON.parse(body)
console.log("Got a response: ", fbResponse.picture)
} else {
console.log("Got an error: ", error, ", status code: ", response.statusCode)
}
})
UTF-8 is a method for encoding Unicode characters using 8-bit sequences.
Unicode is a standard for representing a great variety of characters from many languages.
Pawel Sawicz .NET blog has a real good explanation and example code, explaining how to call the library;
GET:
var client = new RestClient("192.168.0.1");
var request = new RestRequest("api/item/", Method.GET);
var queryResult = client.Execute<List<Items>>(request).Data;
POST:
var client = new RestClient("http://192.168.0.1");
var request = new RestRequest("api/item/", Method.POST);
request.RequestFormat = DataFormat.Json;
request.AddBody(new Item
{
ItemName = someName,
Price = 19.99
});
client.Execute(request);
DELETE:
var item = new Item(){//body};
var client = new RestClient("http://192.168.0.1");
var request = new RestRequest("api/item/{id}", Method.DELETE);
request.AddParameter("id", idItem);
client.Execute(request)
The RestSharp GitHub page has quite an exhaustive sample halfway down the page. To get started install the RestSharp NuGet package in your project, then include the necessary namespace references in your code, then above code should work (possibly negating your need for a full example application).
This solved my problem, from preventign that an event gets fired by a children:
doSmth(){_x000D_
// what ever_x000D_
}
_x000D_
<div (click)="doSmth()">_x000D_
<div (click)="$event.stopPropagation()">_x000D_
<my-component></my-component>_x000D_
</div>_x000D_
</div>
_x000D_
I think you've picked a bad example with System.Threading.Thread.Sleep
Point of an async
Task is to let it execute in background without locking the main thread, such as doing a DownloadFileAsync
System.Threading.Thread.Sleep
isn't something that is "being done", it just sleeps, and therefore your next line is reached after 5 seconds ...
Read this article, I think it is a great explanation of async
and await
concept: http://msdn.microsoft.com/en-us/library/vstudio/hh191443.aspx
There is no easy way to catch such exception unfortunately. What I do is either override the OnError method at the page level or the Application_Error in global.asax, then check if it was a Max Request failure and, if so, transfer to an error page.
protected override void OnError(EventArgs e) .....
private void Application_Error(object sender, EventArgs e)
{
if (GlobalHelper.IsMaxRequestExceededException(this.Server.GetLastError()))
{
this.Server.ClearError();
this.Server.Transfer("~/error/UploadTooLarge.aspx");
}
}
It's a hack but the code below works for me
const int TimedOutExceptionCode = -2147467259;
public static bool IsMaxRequestExceededException(Exception e)
{
// unhandled errors = caught at global.ascx level
// http exception = caught at page level
Exception main;
var unhandled = e as HttpUnhandledException;
if (unhandled != null && unhandled.ErrorCode == TimedOutExceptionCode)
{
main = unhandled.InnerException;
}
else
{
main = e;
}
var http = main as HttpException;
if (http != null && http.ErrorCode == TimedOutExceptionCode)
{
// hack: no real method of identifying if the error is max request exceeded as
// it is treated as a timeout exception
if (http.StackTrace.Contains("GetEntireRawContent"))
{
// MAX REQUEST HAS BEEN EXCEEDED
return true;
}
}
return false;
}
Change this property and try this at design time:
FormBorderStyle = FormBorderStyle.FixedDialog;
Designer view before the change:
other example - my reader with FileReader class
<html>
<head>
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.3/themes/smoothness/jquery-ui.css">
<script src="http://code.jquery.com/jquery-1.10.2.js"></script>
<script src="http://code.jquery.com/ui/1.11.3/jquery-ui.js"></script>
</head>
<body>
<script>
function PreviewText() {
var oFReader = new FileReader();
oFReader.readAsDataURL(document.getElementById("uploadText").files[0]);
oFReader.onload = function (oFREvent) {
document.getElementById("uploadTextValue").value = oFREvent.target.result;
document.getElementById("obj").data = oFREvent.target.result;
};
};
jQuery(document).ready(function(){
$('#viewSource').click(function ()
{
var text = $('#uploadTextValue').val();
alert(text);
//here ajax
});
});
</script>
<object width="100%" height="400" data="" id="obj"></object>
<div>
<input type="hidden" id="uploadTextValue" name="uploadTextValue" value="" />
<input id="uploadText" style="width:120px" type="file" size="10" onchange="PreviewText();" />
</div>
<a href="#" id="viewSource">Source file</a>
</body>
</html>
Or simply:
Date.now
From MDN documentation:
The Date.now() method returns the number of milliseconds elapsed since January 1, 1970
Available since ECMAScript 5.1
It's the same as was mentioned above (new Date().getTime()
), but more shortcutted version.
Postgres hasn't implemented an equivalent to INSERT OR REPLACE
. From the ON CONFLICT
docs (emphasis mine):
It can be either DO NOTHING, or a DO UPDATE clause specifying the exact details of the UPDATE action to be performed in case of a conflict.
Though it doesn't give you shorthand for replacement, ON CONFLICT DO UPDATE
applies more generally, since it lets you set new values based on preexisting data. For example:
INSERT INTO users (id, level)
VALUES (1, 0)
ON CONFLICT (id) DO UPDATE
SET level = users.level + 1;
compareTo()
is called on one object, to compare it to another object.
compare()
is called on some object to compare two other objects.
The difference is where the logic that does actual comparison is defined.
Try this one -
"SELECT
ID, Salt, password, BannedEndDate
, (
SELECT COUNT(1)
FROM dbo.LoginFails l
WHERE l.UserName = u.UserName
AND IP = '" + Request.ServerVariables["REMOTE_ADDR"] + "'
) AS cnt
FROM dbo.Users u
WHERE u.UserName = '" + LoginModel.Username + "'"
Vivek's answer has worked for me, but resulted in an expression has changed after it was checked error. None of the comments worked for me, but what I did was change the change detection strategy.
import { Component, ChangeDetectionStrategy } from '@angular/core';
@Component({
changeDetection: ChangeDetectionStrategy.OnPush,
selector: 'page1',
templateUrl: 'page1.html',
})
You can use as many colors and images as you desire.
Please note that the priority with which the background images are rendered is FILO, the first specified image is on the top layer, the last specified image is on the bottom layer (see the snippet).
#composition {_x000D_
width: 400px;_x000D_
height: 200px;_x000D_
background-image:_x000D_
linear-gradient(to right, #FF0000, #FF0000), /* gradient 1 as solid color */_x000D_
linear-gradient(to right, #00FF00, #00FF00), /* gradient 2 as solid color */_x000D_
linear-gradient(to right, #0000FF, #0000FF), /* gradient 3 as solid color */_x000D_
url('http://lorempixel.com/400/200/'); /* image */_x000D_
background-repeat: no-repeat; /* same as no-repeat, no-repeat, no-repeat */_x000D_
background-position:_x000D_
0 0, /* gradient 1 */_x000D_
20px 0, /* gradient 2 */_x000D_
40px 0, /* gradient 3 */_x000D_
0 0; /* image position */_x000D_
background-size:_x000D_
30px 30px,_x000D_
30px 30px,_x000D_
30px 30px,_x000D_
100% 100%;_x000D_
}
_x000D_
<div id="composition">_x000D_
</div>
_x000D_
Select * from people p, address a where p.id = a.person_id and a.zip='97229';
Or you must TRY using JOIN
which is a more efficient and better way to do this as Gordon Linoff in the comments below also says that you need to learn this.
SELECT p.*, a.street, a.city FROM persons AS p
JOIN address AS a ON p.id = a.person_id
WHERE a.zip = '97299';
Here p.*
means it will show all the columns of PERSONS table.
Step over the next function(F10)
button beside Resume(F8)
in the upper top center of the chrome until you freeze the popup you want to see. To execute a python script in a bash script you need to call the same command that you would within a terminal. For instance
> python python_script.py var1 var2
To access these variables within python you will need
import sys
print sys.argv[0] # prints python_script.py
print sys.argv[1] # prints var1
print sys.argv[2] # prints var2
It is printing the statement twice because it is printing it for both the parent and the child. The parent has a parent id of 0
Try something like this:
pid_t pid;
pid = fork();
if (pid == 0)
printf("This is the child process. My pid is %d and my parent's id is %d.\n", getpid(),getppid());
else
printf("This is the parent process. My pid is %d and my parent's id is %d.\n", getpid(), getppid() );
You are getting AttributeError
because you're calling groups
on None
, which hasn't any methods.
regex.search
returning None
means the regex couldn't find anything matching the pattern from supplied string.
when using regex, it is nice to check whether a match has been made:
Result = re.search(SearchStr, htmlString)
if Result:
print Result.groups()
do tab, then the + sign, then space, then your content
So
* level one
+ level two tabbed
I think you can solve it in one line using the map function:
pos = myArray.map(function(e) { return e.hello; }).indexOf('stevie');
SELECT [ReportId],
SUBSTRING(d.EmailList,1, LEN(d.EmailList) - 1) EmailList
FROM
(
SELECT DISTINCT [ReportId]
FROM Table1
) a
CROSS APPLY
(
SELECT [Email] + ', '
FROM Table1 AS B
WHERE A.[ReportId] = B.[ReportId]
FOR XML PATH('')
) D (EmailList)
I have encountered the same problem and now I have an answer I like more (may be you too). I have bounded each checkbox to an array index.
First I defined an Object like this:
SelectionStatusOfMutants: any = {};
Then the checkboxes are like this:
<input *ngFor="let Mutant of Mutants" type="checkbox"
[(ngModel)]="SelectionStatusOfMutants[Mutant.Id]" [value]="Mutant.Id" />
As you know objects in JS are arrays with arbitrary indices. So the result are being fetched so simple:
Count selected ones like this:
let count = 0;
Object.keys(SelectionStatusOfMutants).forEach((item, index) => {
if (SelectionStatusOfMutants[item])
count++;
});
And similar to that fetch selected ones like this:
let selecteds = Object.keys(SelectionStatusOfMutants).filter((item, index) => {
return SelectionStatusOfMutants[item];
});
You see?! Very simple very beautiful. TG.
You can use .present? which comes included with ActiveSupport.
@city = @user.city.present?
# etc ...
You could even write it like this
def show
%w(city state bio contact twitter mail).each do |attr|
instance_variable_set "@#{attr}", @user[attr].present?
end
end
It's worth noting that if you want to test if something is blank, you can use .blank?
(this is the opposite of .present?
)
Also, don't use foo == nil
. Use foo.nil?
instead.
You can bind to dom directly
<div dangerouslySetInnerHTML={{__html: '<p>First · Second</p>'}}></div>
Here is an example for passing parameters to a fxml document through namespace.
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.layout.BorderPane?>
<?import javafx.scene.layout.VBox?>
<VBox xmlns="http://javafx.com/javafx/null" xmlns:fx="http://javafx.com/fxml/1">
<BorderPane>
<center>
<Label text="$labelText"/>
</center>
</BorderPane>
</VBox>
Define value External Text
for namespace variable labelText
:
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
import java.io.IOException;
public class NamespaceParameterExampleApplication extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) throws IOException {
final FXMLLoader fxmlLoader = new FXMLLoader(getClass().getResource("namespace-parameter-example.fxml"));
fxmlLoader.getNamespace()
.put("labelText", "External Text");
final Parent root = fxmlLoader.load();
primaryStage.setTitle("Namespace Parameter Example");
primaryStage.setScene(new Scene(root, 400, 400));
primaryStage.show();
}
}
chunks = [data[100*i:100*(i+1)] for i in range(len(data)/100 + 1)]
This is equivalent to the accepted answer. For example, shortening to batches of 10 for readability:
data = range(35)
print [data[x:x+10] for x in xrange(0, len(data), 10)]
print [data[10*i:10*(i+1)] for i in range(len(data)/10 + 1)]
Outputs:
[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [10, 11, 12, 13, 14, 15, 16, 17, 18, 19], [20, 21, 22, 23, 24, 25, 26, 27, 28, 29], [30, 31, 32, 33, 34]]
[[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [10, 11, 12, 13, 14, 15, 16, 17, 18, 19], [20, 21, 22, 23, 24, 25, 26, 27, 28, 29], [30, 31, 32, 33, 34]]
you should android sdk manager install 4.2 api 17 -> ARM EABI v7a System Image
if not installed ARM EABI v7a System Image, you should install all.
switch (String.valueOf(value)){
case "null":
default:
}
Both of these two top-rated answers are wrong. Check out the MDN description on the concurrency model and the event loop, and it should become clear what's going on (that MDN resource is a real gem). And simply using setTimeout
can be adding unexpected problems in your code in addition to "solving" this little problem.
What's actually going on here is not that "the browser might not be quite ready yet because concurrency," or something based on "each line is an event that gets added to the back of the queue".
The jsfiddle provided by DVK indeed illustrates a problem, but his explanation for it isn't correct.
What's happening in his code is that he's first attaching an event handler to the click
event on the #do
button.
Then, when you actually click the button, a message
is created referencing the event handler function, which gets added to the message queue
. When the event loop
reaches this message, it creates a frame
on the stack, with the function call to the click event handler in the jsfiddle.
And this is where it gets interesting. We're so used to thinking of Javascript as being asynchronous that we're prone to overlook this tiny fact: Any frame has to be executed, in full, before the next frame can be executed. No concurrency, people.
What does this mean? It means that whenever a function is invoked from the message queue, it blocks the queue until the stack it generates has been emptied. Or, in more general terms, it blocks until the function has returned. And it blocks everything, including DOM rendering operations, scrolling, and whatnot. If you want confirmation, just try to increase the duration of the long running operation in the fiddle (e.g. run the outer loop 10 more times), and you'll notice that while it runs, you cannot scroll the page. If it runs long enough, your browser will ask you if you want to kill the process, because it's making the page unresponsive. The frame is being executed, and the event loop and message queue are stuck until it finishes.
So why this side-effect of the text not updating? Because while you have changed the value of the element in the DOM — you can console.log()
its value immediately after changing it and see that it has been changed (which shows why DVK's explanation isn't correct) — the browser is waiting for the stack to deplete (the on
handler function to return) and thus the message to finish, so that it can eventually get around to executing the message that has been added by the runtime as a reaction to our mutation operation, and in order to reflect that mutation in the UI.
This is because we are actually waiting for code to finish running. We haven't said "someone fetch this and then call this function with the results, thanks, and now I'm done so imma return, do whatever now," like we usually do with our event-based asynchronous Javascript. We enter a click event handler function, we update a DOM element, we call another function, the other function works for a long time and then returns, we then update the same DOM element, and then we return from the initial function, effectively emptying the stack. And then the browser can get to the next message in the queue, which might very well be a message generated by us by triggering some internal "on-DOM-mutation" type event.
The browser UI cannot (or chooses not to) update the UI until the currently executing frame has completed (the function has returned). Personally, I think this is rather by design than restriction.
Why does the setTimeout
thing work then? It does so, because it effectively removes the call to the long-running function from its own frame, scheduling it to be executed later in the window
context, so that it itself can return immediately and allow the message queue to process other messages. And the idea is that the UI "on update" message that has been triggered by us in Javascript when changing the text in the DOM is now ahead of the message queued for the long-running function, so that the UI update happens before we block for a long time.
Note that a) The long-running function still blocks everything when it runs, and b) you're not guaranteed that the UI update is actually ahead of it in the message queue. On my June 2018 Chrome browser, a value of 0
does not "fix" the problem the fiddle demonstrates — 10 does. I'm actually a bit stifled by this, because it seems logical to me that the UI update message should be queued up before it, since its trigger is executed before scheduling the long-running function to be run "later". But perhaps there're some optimisations in the V8 engine that may interfere, or maybe my understanding is just lacking.
Okay, so what's the problem with using setTimeout
, and what's a better solution for this particular case?
First off, the problem with using setTimeout
on any event handler like this, to try to alleviate another problem, is prone to mess with other code. Here's a real-life example from my work:
A colleague, in a mis-informed understanding on the event loop, tried to "thread" Javascript by having some template rendering code use setTimeout 0
for its rendering. He's no longer here to ask, but I can presume that perhaps he inserted timers to gauge the rendering speed (which would be the return immediacy of functions) and found that using this approach would make for blisteringly fast responses from that function.
First problem is obvious; you cannot thread javascript, so you win nothing here while you add obfuscation. Secondly, you have now effectively detached the rendering of a template from the stack of possible event listeners that might expect that very template to have been rendered, while it may very well not have been. The actual behaviour of that function was now non-deterministic, as was — unknowingly so — any function that would run it, or depend on it. You can make educated guesses, but you cannot properly code for its behaviour.
The "fix" when writing a new event handler that depended on its logic was to also use setTimeout 0
. But, that's not a fix, it is hard to understand, and it is no fun to debug errors that are caused by code like this. Sometimes there's no problem ever, other times it concistently fails, and then again, sometimes it works and breaks sporadically, depending on the current performance of the platform and whatever else happens to going on at the time. This is why I personally would advise against using this hack (it is a hack, and we should all know that it is), unless you really know what you're doing and what the consequences are.
But what can we do instead? Well, as the referenced MDN article suggests, either split the work into multiple messages (if you can) so that other messages that are queued up may be interleaved with your work and executed while it runs, or use a web worker, which can run in tandem with your page and return results when done with its calculations.
Oh, and if you're thinking, "Well, couldn't I just put a callback in the long-running function to make it asynchronous?," then no. The callback doesn't make it asynchronous, it'll still have to run the long-running code before explicitly calling your callback.
You can do this also in kotlin like this:
contentView.apply {
// Set the content view to 0% opacity but visible, so that it is visible
// (but fully transparent) during the animation.
alpha = 0f
visibility = View.VISIBLE
// Animate the content view to 100% opacity, and clear any animation
// listener set on the view.
animate()
.alpha(1f)
.setDuration(resources.getInteger(android.R.integer.config_mediumAnimTime).toLong())
.setListener(null)
}
div.abc.xyz {
/* rules go here */
}
... or simply:
.abc.xyz {
/* rules go here */
}
I juste wrote a proxy in nodejs that take care of HTTPS with optional decoding of the message. This proxy also can add proxy-authentification header in order to go through a corporate proxy. You need to give as argument the url to find the proxy.pac file in order to configurate the usage of corporate proxy.
This applies to "IntelliJ IDEA-2019.2.4" on Mac.
MAKE THIS YOUR config.js file code
CKEDITOR.editorConfig = function( config ) {
// config.enterMode = 2; //disabled <p> completely
config.enterMode = CKEDITOR.ENTER_BR; // pressing the ENTER KEY input <br/>
config.shiftEnterMode = CKEDITOR.ENTER_P; //pressing the SHIFT + ENTER KEYS input <p>
config.autoParagraph = false; // stops automatic insertion of <p> on focus
};
Here's the one liner.
${empty value?'value is empty or null':'value is NOT empty or null'}
As offer_date
is an number, and is of lower accuracy than your real dates, this may work...
- Convert your real date to a string of format YYYYMM
- Conver that value to an INT
- Compare the result you your offer_date
SELECT
*
FROM
offers
WHERE
offer_date = (SELECT CAST(to_char(create_date, 'YYYYMM') AS INT) FROM customers where id = '12345678')
AND offer_rate > 0
Also, by doing all the manipulation on the create_date
you only do the processing on one value.
Additionally, had you manipulated the offer_date
you would not be able to utilise any index on that field, and so force SCANs instead of SEEKs.
The Python csv library can do your parsing and your code can translate them into Products()
.
For anyone looking for how to do this in macOS Catalina or above (10.15+ incl. Big Sur 11.0) which has deprecated bash in favour of zsh, here is my .zshrc file:
parse_git_branch() {
git branch 2> /dev/null | sed -n -e 's/^\* \(.*\)/[\1]/p'
}
COLOR_DEF='%f'
COLOR_USR='%F{243}'
COLOR_DIR='%F{197}'
COLOR_GIT='%F{39}'
NEWLINE=$'%{\n%}'
setopt PROMPT_SUBST
export PROMPT='${COLOR_USR}%n@%M ${COLOR_DIR}%d ${COLOR_GIT}$(parse_git_branch)${COLOR_DEF}${NEWLINE}%% '
If you don't like the colours I have used, replace the 243/197/39 values with the colour codes as defined here: https://misc.flogisoft.com/bash/tip_colors_and_formatting
you can add security provider by editing java.security by adding security.provider.=org.bouncycastle.jce.provider.BouncyCastleProvider
or add a line in your top of your class
Security.addProvider(new BouncyCastleProvider());
you can use below line to specify provider while specifying algorithms
Cipher cipher = Cipher.getInstance("AES", "SunJCE");
if you are using other provider like Bouncy Castle then
Cipher cipher = Cipher.getInstance("AES", "BC");
Use array_unique().
Example:
$array = array(1, 2, 2, 3);
$array = array_unique($array); // Array is now (1, 2, 3)
myImageView.isUserInteractionEnabled = true
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(imageTapped))
tapGestureRecognizer.numberOfTapsRequired = 1
myImageView.addGestureRecognizer(tapGestureRecognizer)
and when tapped:
@objc func imageTapped(_ sender: UITapGestureRecognizer) {
// do something when image tapped
print("image tapped")
}
You can embed a variable into a double quoted string like my first example, or you can use concantenation(the period) like in my second example:
echo "<a href=\"http://www.whatever.com/$param\">Click Here</a>";
echo '<a href="http://www.whatever.com/' . $param . '">Click Here</a>';
Notice that I escaped the double quotes inside my first example using a backslash.
By using exploits or on badly configured servers it could be possible to download your PHP source. You could however either obfuscate and/or encrypt your code (using Zend Guard, Ioncube or a similar app) if you want to make sure your source will not be readable (to be accurate, obfuscation by itself could be reversed given enough time/resources, but I haven't found an IonCube or Zend Guard decryptor yet...).
same result as others, different style:
extension UIImage {
func withAlpha(_ alpha: CGFloat) -> UIImage {
return UIGraphicsImageRenderer(size: size).image { _ in
draw(at: .zero, blendMode: .normal, alpha: alpha)
}
}
}
As a complement of @stefano 's answer,
It is better to use command with -f
when generate a new SSH key for another account,
ssh-keygen -t rsa -f ~/.ssh/id_rsa_work -C "[email protected]"
Since id_rsa_work
file doesn't exist in path ~/.ssh/
, and I create this file manually, and it doesn't work :(
2020 - NOV
This worked for me:
final File file = new File(getFilesDir(), "test.wav");//OR path to existing file
mediaPlayer = MediaPlayer.create(getApplicationContext(), Uri.fromFile(file));
mediaPlayer.start();
Use gem environment
to find out about your gem environment:
RubyGems Environment:
- RUBYGEMS VERSION: 2.1.5
- RUBY VERSION: 2.0.0 (2013-06-27 patchlevel 247) [x86_64-darwin12.4.0]
- INSTALLATION DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- RUBY EXECUTABLE: /Users/ttm/.rbenv/versions/2.0.0-p247/bin/ruby
- EXECUTABLE DIRECTORY: /Users/ttm/.rbenv/versions/2.0.0-p247/bin
- SPEC CACHE DIRECTORY: /Users/ttm/.gem/specs
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-12
- GEM PATHS:
- /Users/ttm/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0
- /Users/ttm/.gem/ruby/2.0.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /Users/ttm/.rbenv/versions/2.0.0-p247/bin
- /Users/ttm/.rbenv/libexec
- /Users/ttm/.rbenv/plugins/ruby-build/bin
- /Users/ttm/perl5/perlbrew/bin
- /Users/ttm/perl5/perlbrew/perls/perl-5.18.1/bin
- /Users/ttm/.pyenv/shims
- /Users/ttm/.pyenv/bin
- /Users/ttm/.rbenv/shims
- /Users/ttm/.rbenv/bin
- /Users/ttm/bin
- /usr/local/mysql-5.6.12-osx10.7-x86_64/bin
- /Users/ttm/libsmi/bin
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /usr/local/bin
Notice the two sections for:
INSTALLATION DIRECTORY
GEM PATHS
json-schema-generator is a neat Ruby based JSON schema generator. It supports both draft 3 and 4 of the JSON schema. It can be run as a standalone executable, or it can be embedded inside of a Ruby script.
Then you can use json-schema to validate JSON samples against your newly generated schema if you want.
I don't have enough reputation to comment on the relevant answers, but to people reading this; adding .btn does not just add the pointer cursor but adds a lot of other styling as well. Which is great if it's a button and you want the bootstap button styling, but in other cases it would mess a lot up for other elements.
The best thing you can do, like Hari Das suggested, and which I also always do, is to add the following css:
.cursor-pointer {
cursor: pointer;
}
After which you can add it to any element
<div class="cursor-pointer"> .. </div>
Strings in Python are immutable (meaning that their data cannot be modified) so the replace method doesn't modify the string - it returns a new string. You could fix your code as follows:
for i in hello:
j = i.replace(' ','')
k.append(j)
However a better way to achieve your aim is to use a list comprehension. For example the following code removes leading and trailing spaces from every string in the list using strip
:
hello = [x.strip(' ') for x in hello]
As of 2018,
use MiniCssExtractPlugin
for Webpack(> 4.0) will solve this problem.
https://github.com/webpack-contrib/mini-css-extract-plugin
Using extract-text-webpack-plugin
in the accepted answer is NOT recommended for Webpack 4.0+.
This rule is intended to avoid conflicts in legacy code that still uses raw types.
Here's an illustration of why this was not allowed, drawn from the JLS. Suppose, before generics were introduced to Java, I wrote some code like this:
class CollectionConverter {
List toList(Collection c) {...}
}
You extend my class, like this:
class Overrider extends CollectionConverter{
List toList(Collection c) {...}
}
After the introduction of generics, I decided to update my library.
class CollectionConverter {
<T> List<T> toList(Collection<T> c) {...}
}
You aren't ready to make any updates, so you leave your Overrider
class alone. In order to correctly override the toList()
method, the language designers decided that a raw type was "override-equivalent" to any generified type. This means that although your method signature is no longer formally equal to my superclass' signature, your method still overrides.
Now, time passes and you decide you are ready to update your class. But you screw up a little, and instead of editing the existing, raw toList()
method, you add a new method like this:
class Overrider extends CollectionConverter {
@Override
List toList(Collection c) {...}
@Override
<T> List<T> toList(Collection<T> c) {...}
}
Because of the override equivalence of raw types, both methods are in a valid form to override the toList(Collection<T>)
method. But of course, the compiler needs to resolve a single method. To eliminate this ambiguity, classes are not allowed to have multiple methods that are override-equivalent—that is, multiple methods with the same parameter types after erasure.
The key is that this is a language rule designed to maintain compatibility with old code using raw types. It is not a limitation required by the erasure of type parameters; because method resolution occurs at compile-time, adding generic types to the method identifier would have been sufficient.
I figured it out already:
as.data.frame.matrix(mytable)
does what I need -- apparently, the table needs to somehow be converted to a matrix in order to be appropriately translated into a data frame. I found more details on this as.data.frame.matrix() function for contingency tables at the Computational Ecology blog.
Designing You Model:
Public class ModelName
{
...// Properties
public IEnumerable<SelectListItem> ListName { get; set; }
}
Prepare and bind List to Model in Controller :
public ActionResult Index(ModelName model)
{
var items = // Your List of data
model.ListName = items.Select(x=> new SelectListItem() {
Text = x.prop,
Value = x.prop2
});
}
In You View :
@Html.DropDownListFor(m => Model.prop2,Model.ListName)
You are right. Here is how write()
method of BufferedWriter
looks:
public void write(int c) throws IOException {
synchronized (lock) {
ensureOpen();
if (nextChar >= nChars)
flushBuffer();
cb[nextChar++] = (char) c;
}
}
As you can see it indeed checks whether the buffer is full (if (nextChar >= nChars)
) and flushes the buffer. Then it adds new character to buffer (cb[nextChar++] = (char) c;
).
Here is the example:
SQL> set define off;
SQL> select * from dual where dummy='&var';
no rows selected
SQL> set define on
SQL> /
Enter value for var: X
old 1: select * from dual where dummy='&var'
new 1: select * from dual where dummy='X'
D
-
X
With set define off
, it took a row with &var
value, prompted a user to enter a value for it and replaced &var
with the entered value (in this case, X
).
First solution:
1. switch off Xorg access control: xhost +
2. Now start google chrome as normal user "anonymous" :
sudo -i -u anonymous /opt/google/chrome/chrome
3. When done browsing, re-enable Xorg access control:
xhost -
More info : Howto run google-chrome as root
Second solution:
1. Edit the file /opt/google/chrome/google-chrome
2. find exec -a "$0" "$HERE/chrome" "$@"
or exec -a "$0" "$HERE/chrome" "$PROFILE_DIRECTORY_FLAG" \ "$@"
3. change as
exec -a "$0" "$HERE/chrome" "$@" --user-data-dir ”/root/.config/google-chrome”
Third solution:
Run Google Chrome Browser as Root on Ubuntu Linux systems
If git fetch -p origin
does not work for some reason (like because the origin repo no longer exists or you are unable to reach it), another solution is to remove the information which is stored locally on that branch by doing from the root of the repo:
rm .git/refs/remotes/origin/DELETED_BRANCH
or if it is stored in the file .git/packed-refs
by deleting the corresponding line which is like
7a9930974b02a3b31cb2ebd17df6667514962685 refs/remotes/origin/DELETED_BRANCH
$("a[rel=popover]").each(function(){
var thisPopover=$(this);
var thisPopoverContent ='';
if('you want a data inside an html div tag') {
thisPopoverContent = $(thisPopover.attr('data-content-id')).html();
}elseif('you want ajax content') {
$.get(thisPopover.attr('href'),function(e){
thisPopoverContent = e;
});
}
$(this).attr( 'data-original-title',$(this).attr('title') );
thisPopover.popover({
content: thisPopoverContent
})
.click(function(e) {
e.preventDefault()
});
});
note that I used the same href tag and made it so that it doesn't change pages when clicked, this is a good thing for SEO and also if user doesn't have javascript!
It's probably because you are directly or indirectly through a library call accessing a NULL pointer. In this particular case, it looks like you've jumped to a NULL address, which is a b bit hairier.
In my experience, the easiest way to track these down are to run it with a debugger, and dump a stack trace.
Alternatively, you can do it "by hand" and add lots of logging until you can track down exactly which function (and possibly LOC) this violation occurred in.
Take a look at Stack Tracer, which might help you improve your debugging.
I have done it like:
using (StreamReader sr = File.OpenText(jsonFilePath))
{
var myObject = JsonConvert.DeserializeObject<List<YourObject>>(sr.ReadToEnd());
}
also, you can do this with async call like: sr.ReadToEndAsync(). using Newtonsoft.Json as reference.
Hope, this helps.
Use accept attribute with the MIME_type as values
<input type="file" accept="image/gif, image/jpeg" />
sudo apt-get install qt5-default
works for me.
$ aptitude show qt5-default
tells that
This package sets Qt 5 to be the default Qt version to be used when using development binaries like qmake. It provides a default configuration for qtchooser, but does not prevent alternative Qt installations from being used.
I also like itertuples()
for row in df.itertuples():
print(row.A)
print(row.Index)
since row is a named tuples, if you meant to access values on each row this should be MUCH faster
speed run :
df = pd.DataFrame([x for x in range(1000*1000)], columns=['A'])
st=time.time()
for index, row in df.iterrows():
row.A
print(time.time()-st)
45.05799984931946
st=time.time()
for row in df.itertuples():
row.A
print(time.time() - st)
0.48400020599365234
You can use %in%
data[data$Code %in% selected,]
Code Value
1 A 1
2 B 2
7 A 3
8 A 4
left = None
left is None #evaluates to True
I have some code in my game that displays live score. It is in a function for quick access.
def texts(score):
font=pygame.font.Font(None,30)
scoretext=font.render("Score:"+str(score), 1,(255,255,255))
screen.blit(scoretext, (500, 457))
and I call it using this in my while loop:
texts(score)
You can do it in CSS3:
background-position: right 20px bottom 20px;
It works in Firefox, Chrome, IE9+
Source: MDN
Since I wrote the MSDN article you are referring to, I guess I have to answer this one.
First, I anticipated this question and that's why I wrote a blog post that shows a more or less real use case for ExpandoObject: Dynamic in C# 4.0: Introducing the ExpandoObject.
Shortly, ExpandoObject can help you create complex hierarchical objects. For example, imagine that you have a dictionary within a dictionary:
Dictionary<String, object> dict = new Dictionary<string, object>();
Dictionary<String, object> address = new Dictionary<string,object>();
dict["Address"] = address;
address["State"] = "WA";
Console.WriteLine(((Dictionary<string,object>)dict["Address"])["State"]);
The deeper is the hierarchy, the uglier is the code. With ExpandoObject it stays elegant and readable.
dynamic expando = new ExpandoObject();
expando.Address = new ExpandoObject();
expando.Address.State = "WA";
Console.WriteLine(expando.Address.State);
Second, as it was already pointed out, ExpandoObject implements INotifyPropertyChanged interface which gives you more control over properties than a dictionary.
Finally, you can add events to ExpandoObject like here:
class Program
{
static void Main(string[] args)
{
dynamic d = new ExpandoObject();
// Initialize the event to null (meaning no handlers)
d.MyEvent = null;
// Add some handlers
d.MyEvent += new EventHandler(OnMyEvent);
d.MyEvent += new EventHandler(OnMyEvent2);
// Fire the event
EventHandler e = d.MyEvent;
e?.Invoke(d, new EventArgs());
}
static void OnMyEvent(object sender, EventArgs e)
{
Console.WriteLine("OnMyEvent fired by: {0}", sender);
}
static void OnMyEvent2(object sender, EventArgs e)
{
Console.WriteLine("OnMyEvent2 fired by: {0}", sender);
}
}
Also, keep in mind that nothing is preventing you from accepting event arguments in a dynamic way. In other words, instead of using EventHandler
, you can use EventHandler<dynamic>
which would cause the second argument of the handler to be dynamic
.
I had a similar issue and ended up with this:
For me this has the advantage that data and annotation are not overlapping.
from matplotlib import pyplot as plt
import numpy as np
fig = plt.figure()
ax = fig.add_subplot(111)
A = -0.75, -0.25, 0, 0.25, 0.5, 0.75, 1.0
B = 0.73, 0.97, 1.0, 0.97, 0.88, 0.73, 0.54
plt.plot(A,B)
# annotations at the side (ordered by B values)
x0,x1=ax.get_xlim()
y0,y1=ax.get_ylim()
for ii, ind in enumerate(np.argsort(B)):
x = A[ind]
y = B[ind]
xPos = x1 + .02 * (x1 - x0)
yPos = y0 + ii * (y1 - y0)/(len(B) - 1)
ax.annotate('',#label,
xy=(x, y), xycoords='data',
xytext=(xPos, yPos), textcoords='data',
arrowprops=dict(
connectionstyle="arc3,rad=0.",
shrinkA=0, shrinkB=10,
arrowstyle= '-|>', ls= '-', linewidth=2
),
va='bottom', ha='left', zorder=19
)
ax.text(xPos + .01 * (x1 - x0), yPos,
'({:.2f}, {:.2f})'.format(x,y),
transform=ax.transData, va='center')
plt.grid()
plt.show()
Using the text argument in .annotate
ended up with unfavorable text positions.
Drawing lines between a legend and the data points is a mess, as the location of the legend is hard to address.
If you want to use glyph icons with bootstrap 2.3.2, Add the font files from bootstrap 3 to your project folder then copy this to your css file
@font-face {
font-family: 'Glyphicons Halflings';
src: url('../fonts/glyphicons-halflings-regular.eot');
src: url('../fonts/glyphicons-halflings-regular.eot?#iefix') format('embedded-opentype'), url('../fonts/glyphicons-halflings-regular.woff') format('woff'), url('../fonts/glyphicons-halflings-regular.ttf') format('truetype'), url('../fonts/glyphicons-halflings-regular.svg#glyphicons-halflingsregular') format('svg');
}
Instead of calling containsKey() it is faster just to call map.get and check if the returned value is null or not.
Integer count = map.get(word);
if(count == null){
count = 0;
}
map.put(word, count + 1);
I had to run this for a column introduced in the later stages of a product, on 10+ tables. So wrote this quick untidy script to generate the alter command for all 'relevant' tables.
SET @NeighboringColumn = '<YOUR COLUMN SHOULD COME AFTER THIS COLUMN>';
SELECT CONCAT("ALTER TABLE `",t.TABLE_NAME,"` CHANGE COLUMN `",COLUMN_NAME,"`
`",COLUMN_NAME,"` ", c.DATA_TYPE, CASE WHEN c.CHARACTER_MAXIMUM_LENGTH IS NOT
NULL THEN CONCAT("(", c.CHARACTER_MAXIMUM_LENGTH, ")") ELSE "" END ," AFTER
`",@NeighboringColumn,"`;")
FROM information_schema.COLUMNS c, information_schema.TABLES t
WHERE c.TABLE_SCHEMA = '<YOUR SCHEMA NAME>'
AND c.COLUMN_NAME = '<COLUMN TO MOVE>'
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
AND t.TABLE_TYPE = 'BASE TABLE'
AND @NeighboringColumn IN (SELECT COLUMN_NAME
FROM information_schema.COLUMNS c2
WHERE c2.TABLE_NAME = t.TABLE_NAME);
You can also use std::vectors
for achieving this:
using std::vector< std::vector<int> >
Example:
std::vector< std::vector<int> > a;
//m * n is the size of the matrix
int m = 2, n = 4;
//Grow rows by m
a.resize(m);
for(int i = 0 ; i < m ; ++i)
{
//Grow Columns by n
a[i].resize(n);
}
//Now you have matrix m*n with default values
//you can use the Matrix, now
a[1][0]=1;
a[1][1]=2;
a[1][2]=3;
a[1][3]=4;
//OR
for(i = 0 ; i < m ; ++i)
{
for(int j = 0 ; j < n ; ++j)
{ //modify matrix
int x = a[i][j];
}
}
try this one, which simulates a click on an anchor.
var a = document.createElement('a');
a.href='http://www.google.com';
a.target = '_blank';
document.body.appendChild(a);
a.click();
I highly recommend axios https://www.npmjs.com/package/axios install it with npm or yarn
const axios = require('axios');
axios.get('http://your_server/your_script.php')
.then( response => {
console.log('Respuesta', response.data);
})
.catch( response => {
console.log('Error', response);
})
.finally( () => {
console.log('Finalmente...');
});
You need to check one if you have two
if(rbMale.Checked)
{
}
else
{
}
You need to check all the checkboxes if more then two
if(rb1.Checked)
{
}
else if(rb2.Checked)
{
}
else if(rb3.Checked)
{
}
There is no hostname verification in standard Java SSL sockets or indeed SSL, so that's why you can't set it at that level. Hostname verification is part of HTTPS (RFC 2818): that's why it manifests itself as javax.net.ssl.HostnameVerifier, which is applied to an HttpsURLConnection.
-qscale:v
to control qualityUse -qscale:v
(or the alias -q:v
) as an output option.
-qmin 1
output option (because the default is -qmin 2
).ffmpeg -i input.mp4 -qscale:v 2 output_%03d.jpg
See the image muxer documentation for more options involving image outputs.
ffmpeg -ss 60 -i input.mp4 -qscale:v 4 -frames:v 1 output.jpg
For anyone who is using anaconda, you would install the certifi
package, see more at:
https://anaconda.org/anaconda/certifi
To install, type this line in your terminal:
conda install -c anaconda certifi
I know this is an old question, but there is a simple, one line solution which works consistently for Chrome, Firefox, etc., as well as IE8 and above (and, for the most part, works on IE7 too - see http://www.quirksmode.org/css/selectors/ for details):
table td + td { border-left:2px solid red; }
The output is something like this:
Col1 | Col2 | Col3
What is making this work is that you are defining a border only on table cells which are adjacent to another table cell. In other words, you're applying the CSS to all cells in a row except the first one.
By applying a left border to the second through the last child, it gives the appearance of the line being "between" the cells.
The problem is probably somewhere else. Try this code for example:
Sub test()
origNum = "006260006"
creditOrDebit = "D"
If (origNum = "006260006" Or origNum = "30062600006") And creditOrDebit = "D" Then
MsgBox "OK"
End If
End Sub
And you will see that your Or
works as expected. Are you sure that your ElseIf
statement is executed (it will not be executed if any of the if/elseif before is true)?
Found new way to do it :
- (void)didMoveToParentViewController:(UIViewController *)parent{
if (parent == NULL) {
NSLog(@"Back Pressed");
}
}
override func didMoveToParentViewController(parent: UIViewController?) {
if parent == nil {
println("Back Pressed")
}
}
A lot of the answers in this thread get the point of using refs, but I think a complete example would be good. Since you're operating on an actual DOM node by using the event listener and stepping out of the React context, a ref should be considered the standard solution. Here's a complete example:
class someComponent extends Component {
constructor(props) {
super(props)
this.node = null
}
render() {
return (
<div ref={node => { this.node = node }}>Content</div>
)
}
handleEvent(event) {
if (this.node) {
this.setState({...})
}
}
componentDidMount() {
//as soon as render completes, the node will be registered.
const handleEvent = this.handleEvent.bind(this)
this.node.addEventListener('click', handleEvent)
}
componentWillUnmount() {
const handleEvent = this.handleEvent.bind(this)
this.node.removeEventListener('click', handleEvent)
}
}
It's been more than 10 years and not sure if anyone still finding this question or answer relevant.
But a quick workaround is just to wrap the asp control
within a html container
<div id="myElement" style="display: inline-block">
<asp:TextBox ID="textBox1" runat="server"></asp:TextBox>
</div>
Whenever the Javascript Event
is triggered, if it needs to be an event by the asp control
, just wrap the asp control
around the div
container.
<div id="testG">
<asp:Button ID="Button2" runat="server" CssClass="btn" Text="Activate" />
</div>
The jQuery Code is below:
$(document).ready(function () {
$("#testG").click(function () {
$("#myElement").css("display", "none");
});
});
another way, will also work on MySQL and PostgreSQL
select TABLE_NAME from INFORMATION_SCHEMA.TABLES
where TABLE_TYPE = 'BASE TABLE'
If I'm on my local branch A, and I want to force push local branch B to the origin branch C I can use the following syntax:
git push --force origin B:C
Tested on WinXP, Python 2.6 (3.x also tested) after installing pywin32 (pywin32-214.win32-py2.6.exe in my case):
import win32api, win32con
def click(x,y):
win32api.SetCursorPos((x,y))
win32api.mouse_event(win32con.MOUSEEVENTF_LEFTDOWN,x,y,0,0)
win32api.mouse_event(win32con.MOUSEEVENTF_LEFTUP,x,y,0,0)
click(10,10)
Unfortunately the answers did not solve the problem of asking for password for ssh+svn with a protected private key. After some research I found:
ssh-add
utility if you have a Linux computer. Make sure that you have your keys stored in /home/username/.ssh/
and type this command on Terminal.
I wrote a full replacement for sys.stderr
and just duplicated the code renaming stderr
to stdout
to make it also available to replace sys.stdout
.
To do this I create the same object type as the current stderr
and stdout
, and forward all methods to the original system stderr
and stdout
:
import os
import sys
import logging
class StdErrReplament(object):
"""
How to redirect stdout and stderr to logger in Python
https://stackoverflow.com/questions/19425736/how-to-redirect-stdout-and-stderr-to-logger-in-python
Set a Read-Only Attribute in Python?
https://stackoverflow.com/questions/24497316/set-a-read-only-attribute-in-python
"""
is_active = False
@classmethod
def lock(cls, logger):
"""
Attach this singleton logger to the `sys.stderr` permanently.
"""
global _stderr_singleton
global _stderr_default
global _stderr_default_class_type
# On Sublime Text, `sys.__stderr__` is set to None, because they already replaced `sys.stderr`
# by some `_LogWriter()` class, then just save the current one over there.
if not sys.__stderr__:
sys.__stderr__ = sys.stderr
try:
_stderr_default
_stderr_default_class_type
except NameError:
_stderr_default = sys.stderr
_stderr_default_class_type = type( _stderr_default )
# Recreate the sys.stderr logger when it was reset by `unlock()`
if not cls.is_active:
cls.is_active = True
_stderr_write = _stderr_default.write
logger_call = logger.debug
clean_formatter = logger.clean_formatter
global _sys_stderr_write
global _sys_stderr_write_hidden
if sys.version_info <= (3,2):
logger.file_handler.terminator = '\n'
# Always recreate/override the internal write function used by `_sys_stderr_write`
def _sys_stderr_write_hidden(*args, **kwargs):
"""
Suppress newline in Python logging module
https://stackoverflow.com/questions/7168790/suppress-newline-in-python-logging-module
"""
try:
_stderr_write( *args, **kwargs )
file_handler = logger.file_handler
formatter = file_handler.formatter
terminator = file_handler.terminator
file_handler.formatter = clean_formatter
file_handler.terminator = ""
kwargs['extra'] = {'_duplicated_from_file': True}
logger_call( *args, **kwargs )
file_handler.formatter = formatter
file_handler.terminator = terminator
except Exception:
logger.exception( "Could not write to the file_handler: %s(%s)", file_handler, logger )
cls.unlock()
# Only create one `_sys_stderr_write` function pointer ever
try:
_sys_stderr_write
except NameError:
def _sys_stderr_write(*args, **kwargs):
"""
Hides the actual function pointer. This allow the external function pointer to
be cached while the internal written can be exchanged between the standard
`sys.stderr.write` and our custom wrapper around it.
"""
_sys_stderr_write_hidden( *args, **kwargs )
try:
# Only create one singleton instance ever
_stderr_singleton
except NameError:
class StdErrReplamentHidden(_stderr_default_class_type):
"""
Which special methods bypasses __getattribute__ in Python?
https://stackoverflow.com/questions/12872695/which-special-methods-bypasses-getattribute-in-python
"""
if hasattr( _stderr_default, "__abstractmethods__" ):
__abstractmethods__ = _stderr_default.__abstractmethods__
if hasattr( _stderr_default, "__base__" ):
__base__ = _stderr_default.__base__
if hasattr( _stderr_default, "__bases__" ):
__bases__ = _stderr_default.__bases__
if hasattr( _stderr_default, "__basicsize__" ):
__basicsize__ = _stderr_default.__basicsize__
if hasattr( _stderr_default, "__call__" ):
__call__ = _stderr_default.__call__
if hasattr( _stderr_default, "__class__" ):
__class__ = _stderr_default.__class__
if hasattr( _stderr_default, "__delattr__" ):
__delattr__ = _stderr_default.__delattr__
if hasattr( _stderr_default, "__dict__" ):
__dict__ = _stderr_default.__dict__
if hasattr( _stderr_default, "__dictoffset__" ):
__dictoffset__ = _stderr_default.__dictoffset__
if hasattr( _stderr_default, "__dir__" ):
__dir__ = _stderr_default.__dir__
if hasattr( _stderr_default, "__doc__" ):
__doc__ = _stderr_default.__doc__
if hasattr( _stderr_default, "__eq__" ):
__eq__ = _stderr_default.__eq__
if hasattr( _stderr_default, "__flags__" ):
__flags__ = _stderr_default.__flags__
if hasattr( _stderr_default, "__format__" ):
__format__ = _stderr_default.__format__
if hasattr( _stderr_default, "__ge__" ):
__ge__ = _stderr_default.__ge__
if hasattr( _stderr_default, "__getattribute__" ):
__getattribute__ = _stderr_default.__getattribute__
if hasattr( _stderr_default, "__gt__" ):
__gt__ = _stderr_default.__gt__
if hasattr( _stderr_default, "__hash__" ):
__hash__ = _stderr_default.__hash__
if hasattr( _stderr_default, "__init__" ):
__init__ = _stderr_default.__init__
if hasattr( _stderr_default, "__init_subclass__" ):
__init_subclass__ = _stderr_default.__init_subclass__
if hasattr( _stderr_default, "__instancecheck__" ):
__instancecheck__ = _stderr_default.__instancecheck__
if hasattr( _stderr_default, "__itemsize__" ):
__itemsize__ = _stderr_default.__itemsize__
if hasattr( _stderr_default, "__le__" ):
__le__ = _stderr_default.__le__
if hasattr( _stderr_default, "__lt__" ):
__lt__ = _stderr_default.__lt__
if hasattr( _stderr_default, "__module__" ):
__module__ = _stderr_default.__module__
if hasattr( _stderr_default, "__mro__" ):
__mro__ = _stderr_default.__mro__
if hasattr( _stderr_default, "__name__" ):
__name__ = _stderr_default.__name__
if hasattr( _stderr_default, "__ne__" ):
__ne__ = _stderr_default.__ne__
if hasattr( _stderr_default, "__new__" ):
__new__ = _stderr_default.__new__
if hasattr( _stderr_default, "__prepare__" ):
__prepare__ = _stderr_default.__prepare__
if hasattr( _stderr_default, "__qualname__" ):
__qualname__ = _stderr_default.__qualname__
if hasattr( _stderr_default, "__reduce__" ):
__reduce__ = _stderr_default.__reduce__
if hasattr( _stderr_default, "__reduce_ex__" ):
__reduce_ex__ = _stderr_default.__reduce_ex__
if hasattr( _stderr_default, "__repr__" ):
__repr__ = _stderr_default.__repr__
if hasattr( _stderr_default, "__setattr__" ):
__setattr__ = _stderr_default.__setattr__
if hasattr( _stderr_default, "__sizeof__" ):
__sizeof__ = _stderr_default.__sizeof__
if hasattr( _stderr_default, "__str__" ):
__str__ = _stderr_default.__str__
if hasattr( _stderr_default, "__subclasscheck__" ):
__subclasscheck__ = _stderr_default.__subclasscheck__
if hasattr( _stderr_default, "__subclasses__" ):
__subclasses__ = _stderr_default.__subclasses__
if hasattr( _stderr_default, "__subclasshook__" ):
__subclasshook__ = _stderr_default.__subclasshook__
if hasattr( _stderr_default, "__text_signature__" ):
__text_signature__ = _stderr_default.__text_signature__
if hasattr( _stderr_default, "__weakrefoffset__" ):
__weakrefoffset__ = _stderr_default.__weakrefoffset__
if hasattr( _stderr_default, "mro" ):
mro = _stderr_default.mro
def __init__(self):
"""
Override any super class `type( _stderr_default )` constructor, so we can
instantiate any kind of `sys.stderr` replacement object, in case it was already
replaced by something else like on Sublime Text with `_LogWriter()`.
Assures all attributes were statically replaced just above. This should happen in case
some new attribute is added to the python language.
This also ignores the only two methods which are not equal, `__init__()` and `__getattribute__()`.
"""
different_methods = ("__init__", "__getattribute__")
attributes_to_check = set( dir( object ) + dir( type ) )
for attribute in attributes_to_check:
if attribute not in different_methods \
and hasattr( _stderr_default, attribute ):
base_class_attribute = super( _stderr_default_class_type, self ).__getattribute__( attribute )
target_class_attribute = _stderr_default.__getattribute__( attribute )
if base_class_attribute != target_class_attribute:
sys.stderr.write( " The base class attribute `%s` is different from the target class:\n%s\n%s\n\n" % (
attribute, base_class_attribute, target_class_attribute ) )
def __getattribute__(self, item):
if item == 'write':
return _sys_stderr_write
try:
return _stderr_default.__getattribute__( item )
except AttributeError:
return super( _stderr_default_class_type, _stderr_default ).__getattribute__( item )
_stderr_singleton = StdErrReplamentHidden()
sys.stderr = _stderr_singleton
return cls
@classmethod
def unlock(cls):
"""
Detach this `stderr` writer from `sys.stderr` and allow the next call to `lock()` create
a new writer for the stderr.
"""
if cls.is_active:
global _sys_stderr_write_hidden
cls.is_active = False
_sys_stderr_write_hidden = _stderr_default.write
class StdOutReplament(object):
"""
How to redirect stdout and stderr to logger in Python
https://stackoverflow.com/questions/19425736/how-to-redirect-stdout-and-stderr-to-logger-in-python
Set a Read-Only Attribute in Python?
https://stackoverflow.com/questions/24497316/set-a-read-only-attribute-in-python
"""
is_active = False
@classmethod
def lock(cls, logger):
"""
Attach this singleton logger to the `sys.stdout` permanently.
"""
global _stdout_singleton
global _stdout_default
global _stdout_default_class_type
# On Sublime Text, `sys.__stdout__` is set to None, because they already replaced `sys.stdout`
# by some `_LogWriter()` class, then just save the current one over there.
if not sys.__stdout__:
sys.__stdout__ = sys.stdout
try:
_stdout_default
_stdout_default_class_type
except NameError:
_stdout_default = sys.stdout
_stdout_default_class_type = type( _stdout_default )
# Recreate the sys.stdout logger when it was reset by `unlock()`
if not cls.is_active:
cls.is_active = True
_stdout_write = _stdout_default.write
logger_call = logger.debug
clean_formatter = logger.clean_formatter
global _sys_stdout_write
global _sys_stdout_write_hidden
if sys.version_info <= (3,2):
logger.file_handler.terminator = '\n'
# Always recreate/override the internal write function used by `_sys_stdout_write`
def _sys_stdout_write_hidden(*args, **kwargs):
"""
Suppress newline in Python logging module
https://stackoverflow.com/questions/7168790/suppress-newline-in-python-logging-module
"""
try:
_stdout_write( *args, **kwargs )
file_handler = logger.file_handler
formatter = file_handler.formatter
terminator = file_handler.terminator
file_handler.formatter = clean_formatter
file_handler.terminator = ""
kwargs['extra'] = {'_duplicated_from_file': True}
logger_call( *args, **kwargs )
file_handler.formatter = formatter
file_handler.terminator = terminator
except Exception:
logger.exception( "Could not write to the file_handler: %s(%s)", file_handler, logger )
cls.unlock()
# Only create one `_sys_stdout_write` function pointer ever
try:
_sys_stdout_write
except NameError:
def _sys_stdout_write(*args, **kwargs):
"""
Hides the actual function pointer. This allow the external function pointer to
be cached while the internal written can be exchanged between the standard
`sys.stdout.write` and our custom wrapper around it.
"""
_sys_stdout_write_hidden( *args, **kwargs )
try:
# Only create one singleton instance ever
_stdout_singleton
except NameError:
class StdOutReplamentHidden(_stdout_default_class_type):
"""
Which special methods bypasses __getattribute__ in Python?
https://stackoverflow.com/questions/12872695/which-special-methods-bypasses-getattribute-in-python
"""
if hasattr( _stdout_default, "__abstractmethods__" ):
__abstractmethods__ = _stdout_default.__abstractmethods__
if hasattr( _stdout_default, "__base__" ):
__base__ = _stdout_default.__base__
if hasattr( _stdout_default, "__bases__" ):
__bases__ = _stdout_default.__bases__
if hasattr( _stdout_default, "__basicsize__" ):
__basicsize__ = _stdout_default.__basicsize__
if hasattr( _stdout_default, "__call__" ):
__call__ = _stdout_default.__call__
if hasattr( _stdout_default, "__class__" ):
__class__ = _stdout_default.__class__
if hasattr( _stdout_default, "__delattr__" ):
__delattr__ = _stdout_default.__delattr__
if hasattr( _stdout_default, "__dict__" ):
__dict__ = _stdout_default.__dict__
if hasattr( _stdout_default, "__dictoffset__" ):
__dictoffset__ = _stdout_default.__dictoffset__
if hasattr( _stdout_default, "__dir__" ):
__dir__ = _stdout_default.__dir__
if hasattr( _stdout_default, "__doc__" ):
__doc__ = _stdout_default.__doc__
if hasattr( _stdout_default, "__eq__" ):
__eq__ = _stdout_default.__eq__
if hasattr( _stdout_default, "__flags__" ):
__flags__ = _stdout_default.__flags__
if hasattr( _stdout_default, "__format__" ):
__format__ = _stdout_default.__format__
if hasattr( _stdout_default, "__ge__" ):
__ge__ = _stdout_default.__ge__
if hasattr( _stdout_default, "__getattribute__" ):
__getattribute__ = _stdout_default.__getattribute__
if hasattr( _stdout_default, "__gt__" ):
__gt__ = _stdout_default.__gt__
if hasattr( _stdout_default, "__hash__" ):
__hash__ = _stdout_default.__hash__
if hasattr( _stdout_default, "__init__" ):
__init__ = _stdout_default.__init__
if hasattr( _stdout_default, "__init_subclass__" ):
__init_subclass__ = _stdout_default.__init_subclass__
if hasattr( _stdout_default, "__instancecheck__" ):
__instancecheck__ = _stdout_default.__instancecheck__
if hasattr( _stdout_default, "__itemsize__" ):
__itemsize__ = _stdout_default.__itemsize__
if hasattr( _stdout_default, "__le__" ):
__le__ = _stdout_default.__le__
if hasattr( _stdout_default, "__lt__" ):
__lt__ = _stdout_default.__lt__
if hasattr( _stdout_default, "__module__" ):
__module__ = _stdout_default.__module__
if hasattr( _stdout_default, "__mro__" ):
__mro__ = _stdout_default.__mro__
if hasattr( _stdout_default, "__name__" ):
__name__ = _stdout_default.__name__
if hasattr( _stdout_default, "__ne__" ):
__ne__ = _stdout_default.__ne__
if hasattr( _stdout_default, "__new__" ):
__new__ = _stdout_default.__new__
if hasattr( _stdout_default, "__prepare__" ):
__prepare__ = _stdout_default.__prepare__
if hasattr( _stdout_default, "__qualname__" ):
__qualname__ = _stdout_default.__qualname__
if hasattr( _stdout_default, "__reduce__" ):
__reduce__ = _stdout_default.__reduce__
if hasattr( _stdout_default, "__reduce_ex__" ):
__reduce_ex__ = _stdout_default.__reduce_ex__
if hasattr( _stdout_default, "__repr__" ):
__repr__ = _stdout_default.__repr__
if hasattr( _stdout_default, "__setattr__" ):
__setattr__ = _stdout_default.__setattr__
if hasattr( _stdout_default, "__sizeof__" ):
__sizeof__ = _stdout_default.__sizeof__
if hasattr( _stdout_default, "__str__" ):
__str__ = _stdout_default.__str__
if hasattr( _stdout_default, "__subclasscheck__" ):
__subclasscheck__ = _stdout_default.__subclasscheck__
if hasattr( _stdout_default, "__subclasses__" ):
__subclasses__ = _stdout_default.__subclasses__
if hasattr( _stdout_default, "__subclasshook__" ):
__subclasshook__ = _stdout_default.__subclasshook__
if hasattr( _stdout_default, "__text_signature__" ):
__text_signature__ = _stdout_default.__text_signature__
if hasattr( _stdout_default, "__weakrefoffset__" ):
__weakrefoffset__ = _stdout_default.__weakrefoffset__
if hasattr( _stdout_default, "mro" ):
mro = _stdout_default.mro
def __init__(self):
"""
Override any super class `type( _stdout_default )` constructor, so we can
instantiate any kind of `sys.stdout` replacement object, in case it was already
replaced by something else like on Sublime Text with `_LogWriter()`.
Assures all attributes were statically replaced just above. This should happen in case
some new attribute is added to the python language.
This also ignores the only two methods which are not equal, `__init__()` and `__getattribute__()`.
"""
different_methods = ("__init__", "__getattribute__")
attributes_to_check = set( dir( object ) + dir( type ) )
for attribute in attributes_to_check:
if attribute not in different_methods \
and hasattr( _stdout_default, attribute ):
base_class_attribute = super( _stdout_default_class_type, self ).__getattribute__( attribute )
target_class_attribute = _stdout_default.__getattribute__( attribute )
if base_class_attribute != target_class_attribute:
sys.stdout.write( " The base class attribute `%s` is different from the target class:\n%s\n%s\n\n" % (
attribute, base_class_attribute, target_class_attribute ) )
def __getattribute__(self, item):
if item == 'write':
return _sys_stdout_write
try:
return _stdout_default.__getattribute__( item )
except AttributeError:
return super( _stdout_default_class_type, _stdout_default ).__getattribute__( item )
_stdout_singleton = StdOutReplamentHidden()
sys.stdout = _stdout_singleton
return cls
@classmethod
def unlock(cls):
"""
Detach this `stdout` writer from `sys.stdout` and allow the next call to `lock()` create
a new writer for the stdout.
"""
if cls.is_active:
global _sys_stdout_write_hidden
cls.is_active = False
_sys_stdout_write_hidden = _stdout_default.write
To use this you can just call StdErrReplament::lock(logger)
and StdOutReplament::lock(logger)
passing the logger you want to use to send the output text. For example:
import os
import sys
import logging
current_folder = os.path.dirname( os.path.realpath( __file__ ) )
log_file_path = os.path.join( current_folder, "my_log_file.txt" )
file_handler = logging.FileHandler( log_file_path, 'a' )
file_handler.formatter = logging.Formatter( "%(asctime)s %(name)s %(levelname)s - %(message)s", "%Y-%m-%d %H:%M:%S" )
log = logging.getLogger( __name__ )
log.setLevel( "DEBUG" )
log.addHandler( file_handler )
log.file_handler = file_handler
log.clean_formatter = logging.Formatter( "", "" )
StdOutReplament.lock( log )
StdErrReplament.lock( log )
log.debug( "I am doing usual logging debug..." )
sys.stderr.write( "Tests 1...\n" )
sys.stdout.write( "Tests 2...\n" )
Running this code, you will see on the screen:
And on the file contents:
If you would like to also see the contents of the log.debug
calls on the screen, you will need to add a stream handler to your logger. On this case it would be like this:
import os
import sys
import logging
class ContextFilter(logging.Filter):
""" This filter avoids duplicated information to be displayed to the StreamHandler log. """
def filter(self, record):
return not "_duplicated_from_file" in record.__dict__
current_folder = os.path.dirname( os.path.realpath( __file__ ) )
log_file_path = os.path.join( current_folder, "my_log_file.txt" )
stream_handler = logging.StreamHandler()
file_handler = logging.FileHandler( log_file_path, 'a' )
formatter = logging.Formatter( "%(asctime)s %(name)s %(levelname)s - %(message)s", "%Y-%m-%d %H:%M:%S" )
file_handler.formatter = formatter
stream_handler.formatter = formatter
stream_handler.addFilter( ContextFilter() )
log = logging.getLogger( __name__ )
log.setLevel( "DEBUG" )
log.addHandler( file_handler )
log.addHandler( stream_handler )
log.file_handler = file_handler
log.stream_handler = stream_handler
log.clean_formatter = logging.Formatter( "", "" )
StdOutReplament.lock( log )
StdErrReplament.lock( log )
log.debug( "I am doing usual logging debug..." )
sys.stderr.write( "Tests 1...\n" )
sys.stdout.write( "Tests 2...\n" )
Which would output like this when running:
While it would still saving this to the file my_log_file.txt
:
When disabling this with StdErrReplament:unlock()
, it will only restore the standard behavior of the stderr
stream, as the attached logger cannot be never detached because someone else can have a reference to its older version. This is why it is a global singleton which can never dies. Therefore, in case of reloading this module with imp
or something else, it will never recapture the current sys.stderr
as it was already injected on it and have it saved internally.
Before you return your model from the controller, set your ReturnDate
property to DateTime.Now()
myModel.ReturnDate = DateTime.Now()
return View(myModel)
Your view is not the right place to set values on properties so the controller is the better place for this.
You could even have it so that the getter on ReturnDate
returns the current date/time.
private DateTime _returnDate = DateTime.MinValue;
public DateTime ReturnDate{
get{
return (_returnDate == DateTime.MinValue)? DateTime.Now() : _returnDate;
}
set{_returnDate = value;}
}
Try  
as per the docs :
The character entities
 
and 
denote an en space and an em space respectively, where an en space is half the point size and an em space is equal to the point size of the current font. For fixed pitch fonts, the user agent can treat the en space as being equivalent to A space character, and the em space as being equuivalent to two space characters.
Docs link : https://www.w3.org/MarkUp/html3/specialchars.html
IE supports CSS expressions:
width:expression(document.body.clientWidth > 955 ? "955px": "100%" );
but they are not standard and are not portable across browsers. Avoid them if possible. They are deprecated since IE8.
cq.select(cb.construct(entityClazz.class, root.get("ID"), root.get("VERSION"))); // HERE IS NO ERROR
Other answers did not work for me.
In other answers the findAll
is being used on the soup object itself, but I needed a way to do a find by class name on objects inside a specific element extracted from the object I obtained after doing findAll
.
If you are trying to do a search inside nested HTML elements to get objects by class name, try below -
# parse html
page_soup = soup(web_page.read(), "html.parser")
# filter out items matching class name
all_songs = page_soup.findAll("li", "song_item")
# traverse through all_songs
for song in all_songs:
# get text out of span element matching class 'song_name'
# doing a 'find' by class name within a specific song element taken out of 'all_songs' collection
song.find("span", "song_name").text
Points to note:
I'm not explicitly defining the search to be on 'class' attribute findAll("li", {"class": "song_item"})
, since it's the only attribute I'm searching on and it will by default search for class attribute if you don't exclusively tell which attribute you want to find on.
When you do a findAll
or find
, the resulting object is of class bs4.element.ResultSet
which is a subclass of list
. You can utilize all methods of ResultSet
, inside any number of nested elements (as long as they are of type ResultSet
) to do a find or find all.
My BS4 version - 4.9.1, Python version - 3.8.1
This may be a bit off-topic, since you are asking about static file serving via Node.js specifically (where fs.createReadStream('./image/demo.jpg').pipe(res)
is actually a good idea), but in production you may want to have your Node app handle tasks, that cannot be tackled otherwise, and off-load static serving to e.g Nginx.
This means less coding inside your app, and better efficiency since reverse proxies are by design ideal for this.
The part you should be interested in is the /?
part, which should solve most other questions you have with the tool.
Microsoft Windows XP [Version 5.1.2600] (C) Copyright 1985-2001 Microsoft Corp. C:\>cmd /? Starts a new instance of the Windows XP command interpreter CMD [/A | /U] [/Q] [/D] [/E:ON | /E:OFF] [/F:ON | /F:OFF] [/V:ON | /V:OFF] [[/S] [/C | /K] string] /C Carries out the command specified by string and then terminates /K Carries out the command specified by string but remains /S Modifies the treatment of string after /C or /K (see below) /Q Turns echo off /D Disable execution of AutoRun commands from registry (see below) /A Causes the output of internal commands to a pipe or file to be ANSI /U Causes the output of internal commands to a pipe or file to be Unicode /T:fg Sets the foreground/background colors (see COLOR /? for more info) /E:ON Enable command extensions (see below) /E:OFF Disable command extensions (see below) /F:ON Enable file and directory name completion characters (see below) /F:OFF Disable file and directory name completion characters (see below) /V:ON Enable delayed environment variable expansion using ! as the delimiter. For example, /V:ON would allow !var! to expand the variable var at execution time. The var syntax expands variables at input time, which is quite a different thing when inside of a FOR loop. /V:OFF Disable delayed environment expansion.
Well Lorenz Lo Sauer already have a good question for this. but if you want to resolve this problem through the Pycharm Tuning (without turning off Pycharm code inspection). you can tuning the heap size as you need. since I prefer to use increasing Heap Size solution for slow running Pycharm Application.
You can tune up Heap Size by editing pycharm.exe.vmoptions file. and pycharm64.exe.vmoptions for 64bit application. and then edit -Xmx and -Xms value on it.
So I allocate 2048m for xmx and xms value (which is 2GB) for my Pycharm Heap Size. Here it is My Configuration. I have 8GB memory so I had set it up with this setting:
-server
-Xms2048m
-Xmx2048m
-XX:MaxPermSize=2048m
-XX:ReservedCodeCacheSize=2048m
save the setting, and restart IDE. And I enable "Show memory indicator" in settings->Appearance & Behavior->Appearance. to see it in action :
and Pycharm is quick and running fine now.
Reference : https://www.jetbrains.com/help/pycharm/2017.1/tuning-pycharm.html#d176794e266
You didn't bind all your bindings here
$sql = "SELECT SQL_CALC_FOUND_ROWS *, UNIX_TIMESTAMP(publicationDate) AS publicationDate FROM comments WHERE articleid = :art
ORDER BY " . mysqli_escape_string($order) . " LIMIT :numRows";
$st = $conn->prepare( $sql );
$st->bindValue( ":art", $art, PDO::PARAM_INT );
You've declared a binding called :numRows but you never actually bind anything to it.
UPDATE 2019: I keep getting upvotes on this and that reminded me of another suggestion
Double quotes are string interpolation in PHP, so if you're going to use variables in a double quotes string, it's pointless to use the concat operator. On the flip side, single quotes are not string interpolation, so if you've only got like one variable at the end of a string it can make sense, or just use it for the whole string.
In fact, there's a micro op available here since the interpreter doesn't care about parsing the string for variables. The boost is nearly unnoticable and totally ignorable on a small scale. However, in a very large application, especially good old legacy monoliths, there can be a noticeable performance increase if strings are used like this. (and IMO, it's easier to read anyway)
The type="date" is not an actual specification at this point. It is a concept Google came up with and is in their whatwg specifications (not official) and is only partially supported by Chrome.
http://caniuse.com/#search=date
I would not rely on this input type at this point. It would be nice to have, but I do not foresee this one actually making it. The #1 reason is it puts too much burden on the browser to determine the best UI for a somewhat complicated input. Think about it from a responsive perspective, how would any of the vendors know what will work best with your UI say at 400 pixels, 800 pixels and 1200 pixels wide?
Solution for MAC. run the command
sudo gem update
then type your Mac password when prompted
From cppreference when incrementing iterators:
You should prefer pre-increment operator (++iter) to post-increment operator (iter++) if you are not going to use the old value. Post-increment is generally implemented as follows:
Iter operator++(int) {
Iter tmp(*this); // store the old value in a temporary object
++*this; // call pre-increment
return tmp; // return the old value }
Obviously, it's less efficient than pre-increment.
Pre-increment does not generate the temporary object. This can make a significant difference if your object is expensive to create.
For any javadoc (not just the ones available for download) you can use the DownThemAll addon for Firefox with a suitable renaming mask, for example:
*subdirs*/*name*.*ext*
https://addons.mozilla.org/en-us/firefox/addon/downthemall/
https://www.downthemall.org/main/install-it/downthemall-3-0-7/
Edit: It's possible to use some older versions of the DownThemAll add-on with Pale Moon browser.
d3 = [[[0 for col in range(4)]for row in range(4)] for x in range(6)]
d3[1][2][1] = 144
d3[4][3][0] = 3.12
for x in range(len(d3)):
print d3[x]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 144, 0, 0], [0, 0, 0, 0]]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [3.12, 0, 0, 0]]
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
So I found a pretty good answer at this link: https://www.thomasmaurer.ch/2011/03/powershell-search-for-string-or-grep-for-powershell/
But essentially it is:
Select-String -Path "C:\file\Path\*.txt" -Pattern "^Enter REGEX Here$"
This gives a directory file search (*or you can just specify a file) and a file-content search all in one line of PowerShell, very similar to grep. The output will be similar to:
doc.txt:31: Enter REGEX Here
HelloWorld.txt:13: Enter REGEX Here
Its not mentioned on doc, but Left sidebar on Bootstrap 3 is possible using "Collapse" method.
As mentioned by bootstrap.js :
Collapse.prototype.dimension = function () {
var hasWidth = this.$element.hasClass('width')
return hasWidth ? 'width' : 'height'
}
This mean, adding class "width" into target, will expand by width instead of height :
The settings you need are "Local echo" and "Line editing" under the "Terminal" category on the left.
To get the characters to display on the screen as you enter them, set "Local echo" to "Force on".
To get the terminal to not send the command until you press Enter, set "Local line editing" to "Force on".
Explanation:
From the PuTTY User Manual (Found by clicking on the "Help" button in PuTTY):
4.3.8 ‘Local echo’
With local echo disabled, characters you type into the PuTTY window are not echoed in the window by PuTTY. They are simply sent to the server. (The server might choose to echo them back to you; this can't be controlled from the PuTTY control panel.)
Some types of session need local echo, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local echo is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local echo to be turned on, or force it to be turned off, instead of relying on the automatic detection.
4.3.9 ‘Local line editing’ Normally, every character you type into the PuTTY window is sent immediately to the server the moment you type it.
If you enable local line editing, this changes. PuTTY will let you edit a whole line at a time locally, and the line will only be sent to the server when you press Return. If you make a mistake, you can use the Backspace key to correct it before you press Return, and the server will never see the mistake.
Since it is hard to edit a line locally without being able to see it, local line editing is mostly used in conjunction with local echo (section 4.3.8). This makes it ideal for use in raw mode or when connecting to MUDs or talkers. (Although some more advanced MUDs do occasionally turn local line editing on and turn local echo off, in order to accept a password from the user.)
Some types of session need local line editing, and many do not. In its default mode, PuTTY will automatically attempt to deduce whether or not local line editing is appropriate for the session you are working in. If you find it has made the wrong decision, you can use this configuration option to override its choice: you can force local line editing to be turned on, or force it to be turned off, instead of relying on the automatic detection.
Putty sometimes makes wrong choices when "Auto" is enabled for these options because it tries to detect the connection configuration. Applied to serial line, this is a bit trickier to do.
Try this:
$str = '123456789';
$char_array = preg_split('//', $str, -1, PREG_SPLIT_NO_EMPTY);
For me, the error was a result of a third-party library that I imported that used older Google Support Library modules. I simply updated them to the latest version (checking on Github for example), and the error was gone. I suggest checking all the non-Google libraries that you included in your build.gradle
are up to date.
It depends on which version of Oracle? Older versions require exp (export), newer versions use expdp (data pump); exp was deprecated but still works most of the time.
Before starting, note that Data Pump exports to the server-side Oracle "directory", which is an Oracle symbolic location mapped in the database to a physical location. There may be a default directory (DATA_PUMP_DIR), check by querying DBA_DIRECTORIES:
SQL> select * from dba_directories;
... and if not, create one
SQL> create directory DATA_PUMP_DIR as '/oracle/dumps';
SQL> grant all on directory DATA_PUMP_DIR to myuser; -- DBAs dont need this grant
Assuming you can connect as the SYSTEM user, or another DBA, you can export any schema like so, to the default directory:
$ expdp system/manager schemas=user1 dumpfile=user1.dpdmp
Or specifying a specific directory, add directory=<directory name>
:
C:\> expdp system/manager schemas=user1 dumpfile=user1.dpdmp directory=DUMPDIR
With older export utility, you can export to your working directory, and even on a client machine that is remote from the server, using:
$ exp system/manager owner=user1 file=user1.dmp
Make sure the export is done in the correct charset. If you haven't setup your environment, the Oracle client charset may not match the DB charset, and Oracle will do charset conversion, which may not be what you want. You'll see a warning, if so, then you'll want to repeat the export after setting NLS_LANG environment variable so the client charset matches the database charset. This will cause Oracle to skip charset conversion.
Example for American UTF8 (UNIX):
$ export NLS_LANG=AMERICAN_AMERICA.AL32UTF8
Windows uses SET, example using Japanese UTF8:
C:\> set NLS_LANG=Japanese_Japan.AL32UTF8
More info on Data Pump here: http://docs.oracle.com/cd/B28359_01/server.111/b28319/dp_export.htm#g1022624
The XTend language — which is a super-set of Java, and compiles to Java source code1 — supports this.
This will add a path to your Python process / instance (i.e. the running executable). The path will not be modified for any other Python processes. Another running Python program will not have its path modified, and if you exit your program and run again the path will not include what you added before. What are you are doing is generally correct.
set.py:
import sys
sys.path.append("/tmp/TEST")
loop.py
import sys
import time
while True:
print sys.path
time.sleep(1)
run: python loop.py &
This will run loop.py, connected to your STDOUT, and it will continue to run in the background. You can then run python set.py
. Each has a different set of environment variables. Observe that the output from loop.py
does not change because set.py
does not change loop.py
's environment.
A note on importing
Python imports are dynamic, like the rest of the language. There is no static linking going on. The import is an executable line, just like sys.path.append...
.
If you use ng-show or ng-hide
the content (eg. thumbnails from server) will be loaded irrespective of the value of expression but will be displayed based on the value of the expression.
If you use ng-if
the content will be loaded only if the expression of the ng-if evaluates to truthy.
Using ng-if is a good idea in a situation where you are going to load data or images from the server and show those only depending on users interaction. This way your page load will not be blocked by unnecessary nw intensive tasks.
A simple alternative solution:
Paste the URL into a json to csv converter
Open the CSV file in either Excel or Open Office
Use the spreadsheet tools to parse the data
I don't see the simplified formula in other responses. The logic is covered but I wanted a most basic form for my embedded use:
Unpadded = ((4 * n) + 2) / 3
Padded = 4 * ((n + 2) / 3)
NOTE: When calculating the unpadded count we round up the integer division i.e. add Divisor-1 which is +2 in this case
I use this subtle alias:
alias vim='gnome-terminal -- vim'
-x is deprecated now. We need to use -- instead
Another method that no one has talked about so far is the substr method to produce strings out of another string...this is useful if your string has defined length and the characters your removing are on either end of the string...or within some "static dimension" of the string.
You can get the maximum key this way:
<?php
$arr = array("a"=>"test", "b"=>"ztest");
$max = max(array_keys($arr));
?>
Try this:
function getYesterdaysDate() {
var date = new Date();
date.setDate(date.getDate()-1);
return date.getDate() + '/' + (date.getMonth()+1) + '/' + date.getFullYear();
}
For fromating output date use format
. Second moment argument is for parsing - however if you omit it then you testDate
will cause deprecation warning
Deprecation warning: value provided is not in a recognized RFC2822 or ISO format...
var testDate= "Fri Apr 12 2013 19:08:55 GMT-0500 (CDT)"_x000D_
_x000D_
let s= moment(testDate).format('MM/DD/YYYY');_x000D_
_x000D_
msg.innerText= s;
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>_x000D_
_x000D_
<div id="msg"></div>
_x000D_
to omit this warning you should provide parsing format
var testDate= "Fri Apr 12 2013 19:08:55 GMT-0500 (CDT)"_x000D_
_x000D_
let s= moment(testDate, 'ddd MMM D YYYY HH:mm:ss ZZ').format('MM/DD/YYYY');_x000D_
_x000D_
console.log(s);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>
_x000D_
hash {}
hash[:a] = 'a'
hash[:b] = 'b'
hash = {:a => 'a' , :b = > b}
You might get your key and value from user input, so you can use Ruby .to_sym can convert a string to a symbol, and .to_i will convert a string to an integer.
For example:
movies ={}
movie = gets.chomp
rating = gets.chomp
movies[movie.to_sym] = rating.to_int
# movie will convert to a symbol as a key in our hash, and
# rating will be an integer as a value.
The answer above covers everything in great detail, apart from a couple of things.
First, if there are no styles, then the (Context context, AttributeSet attrs)
method signature will be used to instantiate the preference. In this case just use context.obtainStyledAttributes(attrs, R.styleable.MyCustomView)
to get the TypedArray.
Secondly it does not cover how to deal with plaurals resources (quantity strings). These cannot be dealt with using TypedArray. Here is a code snippet from my SeekBarPreference that sets the summary of the preference formatting its value according to the value of the preference. If the xml for the preference sets android:summary to a text string or a string resouce the value of the preference is formatted into the string (it should have %d in it, to pick up the value). If android:summary is set to a plaurals resource, then that is used to format the result.
// Use your own name space if not using an android resource.
final static private String ANDROID_NS =
"http://schemas.android.com/apk/res/android";
private int pluralResource;
private Resources resources;
private String summary;
public SeekBarPreference(Context context, AttributeSet attrs) {
// ...
TypedArray attributes = context.obtainStyledAttributes(
attrs, R.styleable.SeekBarPreference);
pluralResource = attrs.getAttributeResourceValue(ANDROID_NS, "summary", 0);
if (pluralResource != 0) {
if (! resources.getResourceTypeName(pluralResource).equals("plurals")) {
pluralResource = 0;
}
}
if (pluralResource == 0) {
summary = attributes.getString(
R.styleable.SeekBarPreference_android_summary);
}
attributes.recycle();
}
@Override
public CharSequence getSummary() {
int value = getPersistedInt(defaultValue);
if (pluralResource != 0) {
return resources.getQuantityString(pluralResource, value, value);
}
return (summary == null) ? null : String.format(summary, value);
}
notifyChanged()
in the preference's onDialogClosed
method.Go to Manage Access
page under settings (https://github.com/user/repo/settings/access) and add the collaborators as needed.
Screenshot:
I've had a hard time with ssh2 in php mostly because the output stream sometimes works and sometimes it doesn't. I'm just gonna paste my lib here which works for me very well. If there are small inconsistencies in code it's because I have it plugged in a framework but you should be fine porting it:
<?php
class Components_Ssh {
private $host;
private $user;
private $pass;
private $port;
private $conn = false;
private $error;
private $stream;
private $stream_timeout = 100;
private $log;
private $lastLog;
public function __construct ( $host, $user, $pass, $port, $serverLog ) {
$this->host = $host;
$this->user = $user;
$this->pass = $pass;
$this->port = $port;
$this->sLog = $serverLog;
if ( $this->connect ()->authenticate () ) {
return true;
}
}
public function isConnected () {
return ( boolean ) $this->conn;
}
public function __get ( $name ) {
return $this->$name;
}
public function connect () {
$this->logAction ( "Connecting to {$this->host}" );
if ( $this->conn = ssh2_connect ( $this->host, $this->port ) ) {
return $this;
}
$this->logAction ( "Connection to {$this->host} failed" );
throw new Exception ( "Unable to connect to {$this->host}" );
}
public function authenticate () {
$this->logAction ( "Authenticating to {$this->host}" );
if ( ssh2_auth_password ( $this->conn, $this->user, $this->pass ) ) {
return $this;
}
$this->logAction ( "Authentication to {$this->host} failed" );
throw new Exception ( "Unable to authenticate to {$this->host}" );
}
public function sendFile ( $localFile, $remoteFile, $permision = 0644 ) {
if ( ! is_file ( $localFile ) ) throw new Exception ( "Local file {$localFile} does not exist" );
$this->logAction ( "Sending file $localFile as $remoteFile" );
$sftp = ssh2_sftp ( $this->conn );
$sftpStream = @fopen ( 'ssh2.sftp://' . $sftp . $remoteFile, 'w' );
if ( ! $sftpStream ) {
// if 1 method failes try the other one
if ( ! @ssh2_scp_send ( $this->conn, $localFile, $remoteFile, $permision ) ) {
throw new Exception ( "Could not open remote file: $remoteFile" );
}
else {
return true;
}
}
$data_to_send = @file_get_contents ( $localFile );
if ( @fwrite ( $sftpStream, $data_to_send ) === false ) {
throw new Exception ( "Could not send data from file: $localFile." );
}
fclose ( $sftpStream );
$this->logAction ( "Sending file $localFile as $remoteFile succeeded" );
return true;
}
public function getFile ( $remoteFile, $localFile ) {
$this->logAction ( "Receiving file $remoteFile as $localFile" );
if ( ssh2_scp_recv ( $this->conn, $remoteFile, $localFile ) ) {
return true;
}
$this->logAction ( "Receiving file $remoteFile as $localFile failed" );
throw new Exception ( "Unable to get file to {$remoteFile}" );
}
public function cmd ( $cmd, $returnOutput = false ) {
$this->logAction ( "Executing command $cmd" );
$this->stream = ssh2_exec ( $this->conn, $cmd );
if ( FALSE === $this->stream ) {
$this->logAction ( "Unable to execute command $cmd" );
throw new Exception ( "Unable to execute command '$cmd'" );
}
$this->logAction ( "$cmd was executed" );
stream_set_blocking ( $this->stream, true );
stream_set_timeout ( $this->stream, $this->stream_timeout );
$this->lastLog = stream_get_contents ( $this->stream );
$this->logAction ( "$cmd output: {$this->lastLog}" );
fclose ( $this->stream );
$this->log .= $this->lastLog . "\n";
return ( $returnOutput ) ? $this->lastLog : $this;
}
public function shellCmd ( $cmds = array () ) {
$this->logAction ( "Openning ssh2 shell" );
$this->shellStream = ssh2_shell ( $this->conn );
sleep ( 1 );
$out = '';
while ( $line = fgets ( $this->shellStream ) ) {
$out .= $line;
}
$this->logAction ( "ssh2 shell output: $out" );
foreach ( $cmds as $cmd ) {
$out = '';
$this->logAction ( "Writing ssh2 shell command: $cmd" );
fwrite ( $this->shellStream, "$cmd" . PHP_EOL );
sleep ( 1 );
while ( $line = fgets ( $this->shellStream ) ) {
$out .= $line;
sleep ( 1 );
}
$this->logAction ( "ssh2 shell command $cmd output: $out" );
}
$this->logAction ( "Closing shell stream" );
fclose ( $this->shellStream );
}
public function getLastOutput () {
return $this->lastLog;
}
public function getOutput () {
return $this->log;
}
public function disconnect () {
$this->logAction ( "Disconnecting from {$this->host}" );
// if disconnect function is available call it..
if ( function_exists ( 'ssh2_disconnect' ) ) {
ssh2_disconnect ( $this->conn );
}
else { // if no disconnect func is available, close conn, unset var
@fclose ( $this->conn );
$this->conn = false;
}
// return null always
return NULL;
}
public function fileExists ( $path ) {
$output = $this->cmd ( "[ -f $path ] && echo 1 || echo 0", true );
return ( bool ) trim ( $output );
}
}
To open in a new tab use:
target = "_blank"
To open in the same tab use:
target = "_self"
The psych
package has a great option for grouped summary stats:
library(psych)
describeBy(dt, group="grp")
produces lots of useful stats including mean, median, range, sd, se.
Non VBA Solution:
Use Conditional Formatting rule with formula: =ISNA(A1)
(to highlight cells with all errors - not only #N/A
, use =ISERROR(A1)
)
VBA Solution:
Your code loops through 50 mln cells. To reduce number of cells, I use .SpecialCells(xlCellTypeFormulas, 16)
and .SpecialCells(xlCellTypeConstants, 16)
to return only cells with errors (note, I'm using If cell.Text = "#N/A" Then
)
Sub ColorCells()
Dim Data As Range, Data2 As Range, cell As Range
Dim currentsheet As Worksheet
Set currentsheet = ActiveWorkbook.Sheets("Comparison")
With currentsheet.Range("A2:AW" & Rows.Count)
.Interior.Color = xlNone
On Error Resume Next
'select only cells with errors
Set Data = .SpecialCells(xlCellTypeFormulas, 16)
Set Data2 = .SpecialCells(xlCellTypeConstants, 16)
On Error GoTo 0
End With
If Not Data2 Is Nothing Then
If Not Data Is Nothing Then
Set Data = Union(Data, Data2)
Else
Set Data = Data2
End If
End If
If Not Data Is Nothing Then
For Each cell In Data
If cell.Text = "#N/A" Then
cell.Interior.ColorIndex = 4
End If
Next
End If
End Sub
Note, to highlight cells witn any error (not only "#N/A"
), replace following code
If Not Data Is Nothing Then
For Each cell In Data
If cell.Text = "#N/A" Then
cell.Interior.ColorIndex = 3
End If
Next
End If
with
If Not Data Is Nothing Then Data.Interior.ColorIndex = 3
UPD: (how to add CF rule through VBA)
Sub test()
With ActiveWorkbook.Sheets("Comparison").Range("A2:AW" & Rows.Count).FormatConditions
.Delete
.Add Type:=xlExpression, Formula1:="=ISNA(A1)"
.Item(1).Interior.ColorIndex = 3
End With
End Sub
Just to make use of updated solution try using lodash utility https://lodash.com/docs#get
Code here working for me.
// Activity
public void setTitle(String title){
getSupportActionBar().setHomeButtonEnabled(true);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
TextView textView = new TextView(this);
textView.setText(title);
textView.setTextSize(20);
textView.setTypeface(null, Typeface.BOLD);
textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
textView.setGravity(Gravity.CENTER);
textView.setTextColor(getResources().getColor(R.color.white));
getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
getSupportActionBar().setCustomView(textView);
}
// Fragment
public void setTitle(String title){
((AppCompatActivity)getActivity()).getSupportActionBar().setHomeButtonEnabled(true);
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayHomeAsUpEnabled(true);
TextView textView = new TextView(getActivity());
textView.setText(title);
textView.setTextSize(20);
textView.setTypeface(null, Typeface.BOLD);
textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
textView.setGravity(Gravity.CENTER);
textView.setTextColor(getResources().getColor(R.color.white));
((AppCompatActivity)getActivity()).getSupportActionBar().setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
((AppCompatActivity)getActivity()).getSupportActionBar().setCustomView(textView);
}
With ireport 4.7.1, after setting jdkhome in etc/ireport.conf
, ireport.exe
doesn't start. No splash, no window.
When I launch ireport_w.exe
in a cmd, I get this message:
Error occurred during initialization of VM
Could not reserve enough space for object heap
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Solution:
In file etc/ireport.conf, on the line starting with default_options, I have reduced the value of -J-XX:MaxPermSize
to 256m instead of 512m
default_options="--branding ireport -J-Xms256m -J-Xmx512m
-J-Dorg.netbeans.ProxyClassLoader.level=1000 -J-XX:MaxPermSize=256m"
It's really straightforward to set up! Just go to the Compiler settings at Android Studio 2.2.3 and set the --stacktrace
command:
Then run the app again
Depth first traversal of a binary tree is of order O(n).
Algo -- <b>
PreOrderTrav():-----------------T(n)<b>
if root is null---------------O(1)<b>
return null-----------------O(1)<b>
else:-------------------------O(1)<b>
print(root)-----------------O(1)<b>
PreOrderTrav(root.left)-----T(n/2)<b>
PreOrderTrav(root.right)----T(n/2)<b>
If the time complexity of the algo is T(n) then it can be written as T(n) = 2*T(n/2) + O(1). If we apply back substitution we will get T(n) = O(n).
It looks like whichever program or process you're trying to initialize either isn't installed on your machine, has a damaged installation or needs to be registered.
Either install it, repair it (via Add/Remove Programs) or register it (via Regsvr32.exe).
You haven't provided enough information for us to help you any more than this.
This is the simplest way you can have your own javascript function be called when an onSubmit
occurs.
HTML
<form>
<input type="text" name="name">
<input type="submit" name="submit">
</form>
JavaScript
window.onload = function() {
var form = document.querySelector("form");
form.onsubmit = submitted.bind(form);
}
function submitted(event) {
event.preventDefault();
}
You might want to try this online service for cosine document similarity http://www.scurtu.it/documentSimilarity.html
import urllib,urllib2
import json
API_URL="http://www.scurtu.it/apis/documentSimilarity"
inputDict={}
inputDict['doc1']='Document with some text'
inputDict['doc2']='Other document with some text'
params = urllib.urlencode(inputDict)
f = urllib2.urlopen(API_URL, params)
response= f.read()
responseObject=json.loads(response)
print responseObject
In Python you may use the in
operator. You can do stuff like this:
>>> "c" in "abc"
True
Taking this further, you can check for complex structures, like tuples:
>>> (2, 4, 8) in ((1, 2, 3), (2, 4, 8))
True
try this, hope it will help you to get the current location, every time the location changes.
public class MyClass implements LocationListener {
double currentLatitude, currentLongitude;
public void onLocationChanged(Location location) {
currentLatitude = location.getLatitude();
currentLongitude = location.getLongitude();
}
}
Here's a class I wrote do multiple inserts with purge option:
<?php
/**
* $pdo->beginTransaction();
* $pmi = new PDOMultiLineInserter($pdo, "foo", array("a","b","c","e"), 10);
* $pmi->insertRow($data);
* ....
* $pmi->insertRow($data);
* $pmi->purgeRemainingInserts();
* $pdo->commit();
*
*/
class PDOMultiLineInserter {
private $_purgeAtCount;
private $_bigInsertQuery, $_singleInsertQuery;
private $_currentlyInsertingRows = array();
private $_currentlyInsertingCount = 0;
private $_numberOfFields;
private $_error;
private $_insertCount = 0;
function __construct(\PDO $pdo, $tableName, $fieldsAsArray, $bigInsertCount = 100) {
$this->_numberOfFields = count($fieldsAsArray);
$insertIntoPortion = "INSERT INTO `$tableName` (`".implode("`,`", $fieldsAsArray)."`) VALUES";
$questionMarks = " (?".str_repeat(",?", $this->_numberOfFields - 1).")";
$this->_purgeAtCount = $bigInsertCount;
$this->_bigInsertQuery = $pdo->prepare($insertIntoPortion.$questionMarks.str_repeat(", ".$questionMarks, $bigInsertCount - 1));
$this->_singleInsertQuery = $pdo->prepare($insertIntoPortion.$questionMarks);
}
function insertRow($rowData) {
// @todo Compare speed
// $this->_currentlyInsertingRows = array_merge($this->_currentlyInsertingRows, $rowData);
foreach($rowData as $v) array_push($this->_currentlyInsertingRows, $v);
//
if (++$this->_currentlyInsertingCount == $this->_purgeAtCount) {
if ($this->_bigInsertQuery->execute($this->_currentlyInsertingRows) === FALSE) {
$this->_error = "Failed to perform a multi-insert (after {$this->_insertCount} inserts), the following errors occurred:".implode('<br/>', $this->_bigInsertQuery->errorInfo());
return false;
}
$this->_insertCount++;
$this->_currentlyInsertingCount = 0;
$this->_currentlyInsertingRows = array();
}
return true;
}
function purgeRemainingInserts() {
while ($this->_currentlyInsertingCount > 0) {
$singleInsertData = array();
// @todo Compare speed - http://www.evardsson.com/blog/2010/02/05/comparing-php-array_shift-to-array_pop/
// for ($i = 0; $i < $this->_numberOfFields; $i++) $singleInsertData[] = array_pop($this->_currentlyInsertingRows); array_reverse($singleInsertData);
for ($i = 0; $i < $this->_numberOfFields; $i++) array_unshift($singleInsertData, array_pop($this->_currentlyInsertingRows));
if ($this->_singleInsertQuery->execute($singleInsertData) === FALSE) {
$this->_error = "Failed to perform a small-insert (whilst purging the remaining rows; the following errors occurred:".implode('<br/>', $this->_singleInsertQuery->errorInfo());
return false;
}
$this->_currentlyInsertingCount--;
}
}
public function getError() {
return $this->_error;
}
}
1st start Powershell "as Administrator" that will also prevent the error you got from docker version
.
The try to start the docker service: start-service docker
If that fails delete the docker.pid file you will find with cd $env:programfiles\docker; rm docker.pid
Finally you should change HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Virtualization\Containers\VSmbDisableOplocks
to 0
or delete the value.
This line:
private dynamic defaultReminder =
reminder.TimeSpanText[TimeSpan.FromMinutes(15)];
You cannot use an instance variable to initialize another instance variable. Why? Because the compiler can rearrange these - there is no guarantee that reminder
will be initialized before defaultReminder
, so the above line might throw a NullReferenceException
.
Instead, just use:
private dynamic defaultReminder = TimeSpan.FromMinutes(15);
Alternatively, set up the value in the constructor:
private dynamic defaultReminder;
public Reminders()
{
defaultReminder = reminder.TimeSpanText[TimeSpan.FromMinutes(15)];
}
There are more details about this compiler error on MSDN - Compiler Error CS0236.
I was getting the same error in python 3.4.3 too and I tried using the solutions mentioned here and elsewhere with no success.
Microsoft makes a compiler available for Python 2.7 but it didn't do me much good since I am on 3.4.3.
Python since 3.3 has transitioned over to 2010 and you can download and install Visual C++ 2010 Express for free here: https://www.visualstudio.com/downloads/download-visual-studio-vs#d-2010-express
Here is the official blog post talking about the transition to 2010 for 3.3: http://blog.python.org/2012/05/recent-windows-changes-in-python-33.html
Because previous versions gave a different error for vcvarsall.bat I would double check the version you are using with "pip -V"
C:\Users\B>pip -V
pip 6.0.8 from C:\Python34\lib\site-packages (python 3.4)
As a side note, I too tried using the latest version of VC++ (2013) first but it required installing 2010 express.
From that point forward it should work for anyone using the 32 bit version, if you are on the 64 bit version you will then get the ValueError: ['path'] message because VC++ 2010 doesn't have a 64 bit compuler. For that you have to get the Microsoft SDK 7.1. I can't hyperlink the instruction for 64 bit because I am limited to 2 links per post but its at
Python PIP has issues with path for MS Visual Studio 2010 Express for 64-bit install on Windows 7
Visual Basic, C#, and C++ all have syntax for accessing the Item property without using its name. Instead, the variable containing the List is used as if it were an array.
List[index]
See for instance: https://msdn.microsoft.com/en-us/library/0ebtbkkc(v=vs.110).aspx
Project&Targets Properties -> "Your Provision Profile"-> OK
Everything works again!
Trivial solution with expressions. Note that with NewArrayInit you can create just one-dimensional array.
NewArrayExpression expr = Expression.NewArrayInit(typeof(int), new[] { Expression.Constant(2), Expression.Constant(3) });
int[] array = Expression.Lambda<Func<int[]>>(expr).Compile()(); // compile and call callback
Pass true
as the append
parameter of the constructor:
TextWriter tsw = new StreamWriter(@"C:\Hello.txt", true);
You are opening the file as "w"
, which stands for writable.
Using "w"
you won't be able to read the file. Use the following instead:
file = open("File.txt","r")
Additionally, here are the other options:
"r" Opens a file for reading only.
"r+" Opens a file for both reading and writing.
"rb" Opens a file for reading only in binary format.
"rb+" Opens a file for both reading and writing in binary format.
"w" Opens a file for writing only.
"a" Open for writing. The file is created if it does not exist.
"a+" Open for reading and writing. The file is created if it does not exist.
Use a HashSet<T>
. For example:
var items = "A B A D A C".Split(' ');
var unique_items = new HashSet<string>(items);
foreach (string s in unique_items)
Console.WriteLine(s);
prints
A B D C
It works the same way for axes: parse(text='70^o*N')
will raise the o
as a superscript (the *N
is to make sure the N doesn't get raised too).
labelsX=parse(text=paste(abs(seq(-100, -50, 10)), "^o ", "*W", sep=""))
labelsY=parse(text=paste(seq(50,100,10), "^o ", "*N", sep=""))
plot(-100:-50, 50:100, type="n", xlab="", ylab="", axes=FALSE)
axis(1, seq(-100, -50, 10), labels=labelsX)
axis(2, seq(50, 100, 10), labels=labelsY)
box()
if u want to use them as an array u already knew, else u can use every one of them as a different parameter ... try this :
parameter1,parameter2,parameter3,parameter4,parameter5 = ex.split(",")
I have made a small library to ease changing and translating the error messages. You can even change the texts by error type which is currently not available using title
in Chrome or x-moz-errormessage
in Firefox. Go check it out on GitHub, and give feedback.
It's used like:
<input type="email" required data-errormessage-value-missing="Please input something">
There's a demo available at jsFiddle.
Session.Abandon();
did not work for me either.
The way I had to write it to get it to work was like this. Might work for you too.
HttpContext.Current.Session.Abandon();
according to Android docs, Monitor was deprecated in Android Studio 3.1 and removed from Android Studio 3.2. To access files, there is a tab in android studio called "Device File Explorer" bottom-right side of developing window which you can access your emulator file system. Just follow
/data/data/package_name/databases
good luck.
...
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:local="urn:local" extension-element-prefixes="msxsl">
<msxsl:script language="CSharp" implements-prefix="local">
public string dateTimeNow()
{
return DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ssZ");
}
</msxsl:script>
...
<xsl:value-of select="local:dateTimeNow()"/>
I had to do this recently as well for both Mac and Linux OS's and after browsing through many posts and trying many things out, in my particular opinion I never got to where I wanted to which is: a simple enough to understand solution using well known and standard commands with simple patterns, one liner, portable, expandable to add in more constraints. Then I tried to looked at it with a different perspective, that's when I realized i could do without the "one liner" option if a "2-liner" met the rest of my criteria. At the end I came up with this solution I like that works in both Ubuntu and Mac which i wanted to share with everyone:
insertLine=$(( $(grep -n "foo" sample.txt | cut -f1 -d: | head -1) + 1 ))
sed -i -e "$insertLine"' i\'$'\n''bar'$'\n' sample.txt
In first command, grep looks for line numbers containing "foo", cut/head selects 1st occurrence, and the arithmetic op increments that first occurrence line number by 1 since I want to insert after the occurrence. In second command, it's an in-place file edit, "i" for inserting: an ansi-c quoting new line, "bar", then another new line. The result is adding a new line containing "bar" after the "foo" line. Each of these 2 commands can be expanded to more complex operations and matching.
I also came across the same issue. I was trying to build the project with a clean install
goal. I simply changed it to clean package -o
in the run configuration. Then I re-built the project and it worked for me.
You can install it by first extracting all the files from the ISO and then overwriting those files with the files from the ZIP. Then you can run the batch file as administrator to do the installation. Most of the packages install on windows 7, but I haven't tested yet how well they work.
String str1="this is a string";
String str2=str1.clone();
How about copy like this?
I think to get a new copy is better, so that the data of str1
won't be affected when str2
is reference and modified in futher action.
Or you can use reject
method
$newColection = $collection->reject(function($element) {
return $item->selected != true;
});
or pull
method
$selected = [];
foreach ($collection as $key => $item) {
if ($item->selected == true) {
$selected[] = $collection->pull($key);
}
}
Basically, you get connections in the Sleep state when :
So, you generally end up with many processes in a Sleep state when you have a lot of PHP processes that stay connected, without actually doing anything on the database-side.
A basic idea, so : make sure you don't have PHP processes that run for too long -- or force them to disconnect as soon as they don't need to access the database anymore.
Another thing, that I often see when there is some load on the server :
A solution that can help is to reduce the time your queries take -- optimizing the longest ones.
The accepted solution only works on arrays, but not objects or associative arrays. Unfortunately, since Angular depends on the JavaScript implementation of array enumeration, the order of object properties cannot be consistently controlled. Some browsers may iterate through object properties lexicographically, but this cannot be guaranteed.
e.g. Given the following assignment:
$scope.cards = {
"card2": {
values: {
opt1: 9,
opt2: 12
}
},
"card1": {
values: {
opt1: 9,
opt2: 11
}
}
};
and the directive <ul ng-repeat="(key, card) in cards | orderBy:myValueFunction">
, ng-repeat may iterate over "card1" prior to "card2", regardless of sort order.
To workaround this, we can create a custom filter to convert the object to an array, and then apply a custom sort function before returning the collection.
myApp.filter('orderByValue', function () {
// custom value function for sorting
function myValueFunction(card) {
return card.values.opt1 + card.values.opt2;
}
return function (obj) {
var array = [];
Object.keys(obj).forEach(function (key) {
// inject key into each object so we can refer to it from the template
obj[key].name = key;
array.push(obj[key]);
});
// apply a custom sorting function
array.sort(function (a, b) {
return myValueFunction(b) - myValueFunction(a);
});
return array;
};
});
We cannot iterate over (key, value) pairings in conjunction with custom filters (since the keys for arrays are numerical indexes), so the template should be updated to reference the injected key names.
<ul ng-repeat="card in cards | orderByValue">
<li>{{card.name}} {{value(card)}}</li>
</ul>
Here is a working fiddle utilizing a custom filter on an associative array: http://jsfiddle.net/av1mLpqx/1/
Reference: https://github.com/angular/angular.js/issues/1286#issuecomment-22193332
The worst way:
>>> def hex_to_int(x):
return eval("0x" + x)
>>> hex_to_int("c0ffee")
12648430
A workaround for this I used was to include the data as a js file, that implements a function returning the raw data as a string:
<!DOCTYPE html>
<html>
<head>
<script src="script.js"></script>
<script type="text/javascript">
function loadData() {
// getData() will return the string of data...
document.getElementById('data').innerHTML = getData().replace('\n', '<br>');
}
</script>
</head>
<body onload='loadData()'>
<h1>check out the data!</h1>
<div id='data'></div>
</body>
</html>
// function wrapper, just return the string of data (csv etc)
function getData () {
return 'look at this line of data\n\
oh, look at this line'
}
See it in action here- http://plnkr.co/edit/EllyY7nsEjhLMIZ4clyv?p=preview
The downside is you have to do some preprocessing on the file to support multilines (append each line in the string with '\n\'
).
You can use this API to retrieve public info of the instagram user:
https://api.lityapp.com/instagrams/thebrainscoop?limit=2
(edit: broken/malware link on Feb 2021)
If you don't set the limit parameter, the posts are limited at 12 by default
This api was made in SpringBoot with HtmlUnit as you can see in the code:
public JSONObject getPublicInstagramByUserName(String userName, Integer limit) {
String html;
WebClient webClient = new WebClient();
try {
webClient.getOptions().setCssEnabled(false);
webClient.getOptions().setJavaScriptEnabled(false);
webClient.getOptions().setThrowExceptionOnScriptError(false);
webClient.getCookieManager().setCookiesEnabled(true);
Page page = webClient.getPage("https://www.instagram.com/" + userName);
WebResponse response = page.getWebResponse();
html = response.getContentAsString();
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException("Ocorreu um erro no Instagram");
}
String prefix = "static/bundles/es6/ProfilePageContainer.js";
String suffix = "\"";
String script = html.substring(html.indexOf(prefix));
script = script.substring(0, script.indexOf(suffix));
try {
Page page = webClient.getPage("https://www.instagram.com/" + script);
WebResponse response = page.getWebResponse();
script = response.getContentAsString();
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException("Ocorreu um erro no Instagram");
}
prefix = "l.pagination},queryId:\"";
String queryHash = script.substring(script.indexOf(prefix) + prefix.length());
queryHash = queryHash.substring(0, queryHash.indexOf(suffix));
prefix = "<script type=\"text/javascript\">window._sharedData = ";
suffix = ";</script>";
html = html.substring(html.indexOf(prefix) + prefix.length());
html = html.substring(0, html.indexOf(suffix));
JSONObject json = new JSONObject(html);
JSONObject entryData = json.getJSONObject("entry_data");
JSONObject profilePage = (JSONObject) entryData.getJSONArray("ProfilePage").get(0);
JSONObject graphql = profilePage.getJSONObject("graphql");
JSONObject user = graphql.getJSONObject("user");
JSONObject response = new JSONObject();
response.put("id", user.getString("id"));
response.put("username", user.getString("username"));
response.put("fullName", user.getString("full_name"));
response.put("followedBy", user.getJSONObject("edge_followed_by").getLong("count"));
response.put("following", user.getJSONObject("edge_follow").getLong("count"));
response.put("isBusinessAccount", user.getBoolean("is_business_account"));
response.put("photoUrl", user.getString("profile_pic_url"));
response.put("photoUrlHD", user.getString("profile_pic_url_hd"));
JSONObject edgeOwnerToTimelineMedia = user.getJSONObject("edge_owner_to_timeline_media");
JSONArray posts = new JSONArray();
try {
loadPublicInstagramPosts(webClient, queryHash, user.getString("id"), posts, edgeOwnerToTimelineMedia, limit == null ? 12 : limit);
} catch (Exception ex) {
ex.printStackTrace();
throw new RuntimeException("Você fez muitas chamadas, tente mais tarde");
}
response.put("posts", posts);
return response;
}
private void loadPublicInstagramPosts(WebClient webClient, String queryHash, String userId, JSONArray posts, JSONObject edgeOwnerToTimelineMedia, Integer limit) throws IOException {
JSONArray edges = edgeOwnerToTimelineMedia.getJSONArray("edges");
for (Object elem : edges) {
if (limit != null && posts.length() == limit) {
return;
}
JSONObject node = ((JSONObject) elem).getJSONObject("node");
if (node.getBoolean("is_video")) {
continue;
}
JSONObject post = new JSONObject();
post.put("id", node.getString("id"));
post.put("shortcode", node.getString("shortcode"));
JSONArray captionEdges = node.getJSONObject("edge_media_to_caption").getJSONArray("edges");
if (captionEdges.length() > 0) {
JSONObject captionNode = ((JSONObject) captionEdges.get(0)).getJSONObject("node");
post.put("caption", captionNode.getString("text"));
} else {
post.put("caption", (Object) null);
}
post.put("photoUrl", node.getString("display_url"));
JSONObject dimensions = node.getJSONObject("dimensions");
post.put("photoWidth", dimensions.getLong("width"));
post.put("photoHeight", dimensions.getLong("height"));
JSONArray thumbnailResources = node.getJSONArray("thumbnail_resources");
JSONArray thumbnails = new JSONArray();
for (Object elem2 : thumbnailResources) {
JSONObject obj = (JSONObject) elem2;
JSONObject thumbnail = new JSONObject();
thumbnail.put("photoUrl", obj.getString("src"));
thumbnail.put("photoWidth", obj.getLong("config_width"));
thumbnail.put("photoHeight", obj.getLong("config_height"));
thumbnails.put(thumbnail);
}
post.put("thumbnails", thumbnails);
posts.put(post);
}
JSONObject pageInfo = edgeOwnerToTimelineMedia.getJSONObject("page_info");
if (!pageInfo.getBoolean("has_next_page")) {
return;
}
String endCursor = pageInfo.getString("end_cursor");
String variables = "{\"id\":\"" + userId + "\",\"first\":12,\"after\":\"" + endCursor + "\"}";
String url = "https://www.instagram.com/graphql/query/?query_hash=" + queryHash + "&variables=" + URLEncoder.encode(variables, "UTF-8");
Page page = webClient.getPage(url);
WebResponse response = page.getWebResponse();
String content = response.getContentAsString();
JSONObject json = new JSONObject(content);
loadPublicInstagramPosts(webClient, queryHash, userId, posts, json.getJSONObject("data").getJSONObject("user").getJSONObject("edge_owner_to_timeline_media"), limit);
}
{
"id": "290482318",
"username": "thebrainscoop",
"fullName": "Official Fan Page",
"followedBy": 1023,
"following": 6,
"isBusinessAccount": false,
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/447ffd0262082f373acf3d467435f130/5C709C77/t51.2885-19/11351770_612904665516559_678168252_a.jpg",
"photoUrlHD": "https://scontent-gru2-1.cdninstagram.com/vp/447ffd0262082f373acf3d467435f130/5C709C77/t51.2885-19/11351770_612904665516559_678168252_a.jpg",
"posts": [
{
"id": "1430331382090378714",
"shortcode": "BPZjtBUly3a",
"caption": "If I have any active followers anymore; hello! I'm Brianna, and I created this account when I was just 12 years old to show my love for The Brain Scoop. I'm now nearly finished high school, and just rediscovered it. I just wanted to see if anyone is still active on here, and also correct some of my past mistakes - being a child at the time, I didn't realise I had to credit artists for their work, so I'm going to try to correct that post haste. Also; the font in my bio is horrendous. Why'd I think that was a good idea? Anyway, this is a beautiful artwork of the long-tailed pangolin by @chelsealinaeve . Check her out!",
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/ab823331376ca46136457f4654bf2880/5CAD48E4/t51.2885-15/e35/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 640,
"photoHeight": 457,
"thumbnails": [
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/43b195566d0ef2ad5f4663ff76d62d23/5C76D756/t51.2885-15/e35/c91.0.457.457/s150x150/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 150,
"photoHeight": 150
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/ae39043a7ac050c56d741d8b4355c185/5C93971C/t51.2885-15/e35/c91.0.457.457/s240x240/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 240,
"photoHeight": 240
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/ae7a22d09e3ef98d0a6bbf31d621a3b7/5CACBBA6/t51.2885-15/e35/c91.0.457.457/s320x320/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 320,
"photoHeight": 320
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/1439dc72b70e7c0c0a3afcc30970bb13/5C8E2923/t51.2885-15/e35/c91.0.457.457/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 480,
"photoHeight": 480
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/1439dc72b70e7c0c0a3afcc30970bb13/5C8E2923/t51.2885-15/e35/c91.0.457.457/16110915_400942200241213_3503127351280009216_n.jpg",
"photoWidth": 640,
"photoHeight": 640
}
]
},
{
"id": "442527661838057235",
"shortcode": "YkLJBXJD8T",
"caption": null,
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/dc94b38da679826b9ac94ccd2bcc4928/5C7CDF93/t51.2885-15/e15/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 612,
"photoHeight": 612,
"thumbnails": [
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/c1153c6513c44a6463d897e14b2d8f06/5CB13ADD/t51.2885-15/e15/s150x150/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 150,
"photoHeight": 150
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/47e60ec8bca5a1382cd9ac562439d48c/5CAE6A82/t51.2885-15/e15/s240x240/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 240,
"photoHeight": 240
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/da0ee5b666ab40e4adc1119e2edca014/5CADCB59/t51.2885-15/e15/s320x320/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 320,
"photoHeight": 320
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/02ee23571322ea8d0992e81e72f80ef2/5C741048/t51.2885-15/e15/s480x480/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 480,
"photoHeight": 480
},
{
"photoUrl": "https://scontent-gru2-1.cdninstagram.com/vp/dc94b38da679826b9ac94ccd2bcc4928/5C7CDF93/t51.2885-15/e15/11327349_860747310663863_2105199307_n.jpg",
"photoWidth": 640,
"photoHeight": 640
}
]
}
]
}