I'll add my solution, even thought his thread is old. Maybe this will help someone anyway.
First, I need to generate the PDF. I use XeLaTeX for that:
xelatex test.tex
Now, ImageMagick and GraphicMagic both parse parameters from left to right, so the leftmost parameter, will be executed first. I ended up using this sequence for optimal processing:
gm convert -trim -transparent white -background transparent -density 1200x1200 -resize 25% test.pdf test.png
It gives nice graphics on transparent background, trimmed to what is actually on the page. The -density
and -resize
parameters, give a better granularity, and increase overall resolution.
I suggest checking if the density can be decreased for you. It'll cut down converting time.
Even though this question is 10 years old, it is still valid and as technology changes so does a valid answer.
In searching the current answers noticed none of them note WOFF (Web Open Font Format) (W3C) (Wikipedia) which can be used to recreate the individual characters (glyphs) and display them in a web page accurately.
Using the free online web page by IDR Solutions, PDF to HTML5 (link), convert a PDF to a zip file. In the resulting zip will be a font directory of woff file types. Current Internet browsers support woff files if you were not aware. (reference) These can be examined at the online site FontDrop! (link).
WOFF files can be converted to/from OTF or TTF at WOFFer – WOFF font converter
Also the zip file from PDF to HTML5 will contain an HTML file for each page of the PDF that can be opened in an Internet browser and is one of the best and most accurate PDF translations I have found or seen.
While I am just learning how to use WOFF files, this is worth passing along. Enjoy.
PS, I will probably update with more info as I learn more about using woff file types, but as this is creative commons, feel free to edit this answer if you have something of value to pass along.
An efficient command line tool, open source, free of any fee, available on both linux & windows : simply named pdftotext. This tool is a part of the xpdf library.
This is always fascinating. I am not a cloud developer, but based on my research there is nothing significantly different than what many of us have been doing off and on for decades. The server is platform specific. If you want to write platform agnostic code for your server that is fine, but unnecessary based on whoever your cloud server provider is. I think the biggest difference I've seen so far is the concept of providing a large set of services for the front end client to process. the front end, I'm assuming is predominantly web or web app development. As most browsers can handle LAMP vs Microsoft stack well enough, then you are still back to whatever your flavor of the month is. The only difference I truly am seeing from what I did 20 years ago in a highly distributed network environment are higher level protocol (HTTP vs. TCP/UDP). Maybe I am wrong and would welcome the education, but then again I've been doing this a long time and still have not seen anything I would consider revolutionary or significantly different, though languages like Java, C#, Python, Ruby, etc are significantly simpler to program in which is a mixed bag as the bar is lowered for those are are not familiar with writing optimized code. PAAS and SAAS to me seem to be some of the keys in the new technology, but been doing some of this to off and on for 20 years :)
The 'file' protocol is not a network protocol. Therefore file://192.168.1.57/~User/2ndFile.html simply does not make much sense.
Question is how you load the first file. Is that really done using a web server? Does not really sound like. If it is, then why not use the same protocol, most likely http? You cannot expect to simply switch the protocol and use two different protocols the same way...
I suspect the first file is really loaded using the apache server at all, but simply by opening the file? href="2ndFile.html" simply works because it uses a "relative url". This makes the browser use the same protocol and path as where he got the first (current) file from.
You can use a heredoc. e.g. from a prompt:
$ sqlplus -s username/password@oracle_instance <<EOF
set feed off
set pages 0
select count(*) from table;
exit
EOF
so sqlplus
will consume everything up to the EOF
marker as stdin.
Yes.
When calling file_get_contents
on a URL, one should use the stream_create_context
function, which is fairly well documented on php.net.
This is more or less exactly covered on the following page at php.net in the user comments section: http://php.net/manual/en/function.stream-context-create.php
FWIW, here's what I used:
expr "${arr[*]}" : ".*\<$item\>"
This works where there are no delimiters in any of the array items or in the search target. I didn't need to solve the general case for my applicaiton.
$ pip install -U requests[security]
When this question was opened (2012-05) the Requests version was 0.13.1. On version 2.4.1 (2014-09) the "security" extras were introduced, using certifi
package if available.
Right now (2016-09) the main version is 2.11.1, that works good without verify=False
. No need to use requests.get(url, verify=False)
, if installed with requests[security]
extras.
For a VB or C# app, one way to do this is by using Office Interop. This depends on which version of Excel you're working with.
For Excel 2003, this MSDN article is a good place to start. Understanding the Excel Object Model from a Visual Studio 2005 Developer's Perspective
You'll basically need to do the following:
Excel.Range allCellsRng;
string lowerRightCell = "IV65536";
allCellsRng = ws.get_Range("A1", lowerRightCell).Cells;
foreach (Range cell in allCellsRng)
{
if (null == cell.Value2 || isBlank(cell.Value2))
{
// Do something.
}
else if (isText(cell.Value2))
{
// Do something.
}
else if (isNumeric(cell.Value2))
{
// Do something.
}
}
For Excel 2007, try this MSDN reference.
Try to set more reasonable logging level. Setting logging level to info
means that only log event at info
or higher level (warn
, error
and fatal
) are logged, that is debug
logging events are ignored.
log4j.logger.org.hibernate=info
or in XML version of log4j config file:
<logger name="org.hibernate">
<level value="info"/>
</logger>
See also log4j manual.
Looking at the neural network from the outside, it is just a function that takes some arguments and produces a result. As with all functions, it has a domain (i.e. a set of legal arguments). You have to normalize the values that you want to pass to the neural net in order to make sure it is in the domain. As with all functions, if the arguments are not in the domain, the result is not guaranteed to be appropriate.
The exact behavior of the neural net on arguments outside of the domain depends on the implementation of the neural net. But overall, the result is useless if the arguments are not within the domain.
Enter the following command to check if a private key and public key are a matched set (identical) or not a matched set (differ) in $USER/.ssh directory. The cut command prevents the comment at the end of the line in the public key from being compared, allowing only the key to be compared.
ssh-keygen -y -f ~/.ssh/id_rsa | diff -s - <(cut -d ' ' -f 1,2 ~/.ssh/id_rsa.pub)
Output will look like either one of these lines.
Files - and /dev/fd/63 are identical
Files - and /dev/fd/63 differ
I wrote a shell script that users use to check file permission of their ~/.ssh/files and matched key set. It solves my challenges with user incidents setting up ssh. It may help you. https://github.com/BradleyA/docker-security-infrastructure/tree/master/ssh
Note: My previous answer (in Mar 2018) no longer works with the latest releases of openssh. Previous answer: diff -qs <(ssh-keygen -yf ~/.ssh/id_rsa) <(cut -d ' ' -f 1,2 ~/.ssh/id_rsa.pub)
The following transact SQL script works for all languages (international). The solution is not to check for alphanumeric but to check for not containing special characters.
DECLARE @teststring nvarchar(max)
SET @teststring = 'Test''Me'
SELECT 'IS ALPHANUMERIC: ' + @teststring
WHERE @teststring NOT LIKE '%[-!#%&+,./:;<=>@`{|}~"()*\\\_\^\?\[\]\'']%' {ESCAPE '\'}
Just in case someone still needs it. The successful, not official, way to rename indexes are:
If you happen to get this error "dangled index directory name is", remove index folder in all master nodes (not data nodes), and restart one of the data nodes.
Xcode 9 introduced new tricks with XCTWaiter
Test case waits explicitly
wait(for: [documentExpectation], timeout: 10)
Waiter instance delegates to test
XCTWaiter(delegate: self).wait(for: [documentExpectation], timeout: 10)
Waiter class returns result
let result = XCTWaiter.wait(for: [documentExpectation], timeout: 10)
switch(result) {
case .completed:
//all expectations were fulfilled before timeout!
case .timedOut:
//timed out before all of its expectations were fulfilled
case .incorrectOrder:
//expectations were not fulfilled in the required order
case .invertedFulfillment:
//an inverted expectation was fulfilled
case .interrupted:
//waiter was interrupted before completed or timedOut
}
Before Xcode 9
Objective C
- (void)waitForElementToAppear:(XCUIElement *)element withTimeout:(NSTimeInterval)timeout
{
NSUInteger line = __LINE__;
NSString *file = [NSString stringWithUTF8String:__FILE__];
NSPredicate *existsPredicate = [NSPredicate predicateWithFormat:@"exists == true"];
[self expectationForPredicate:existsPredicate evaluatedWithObject:element handler:nil];
[self waitForExpectationsWithTimeout:timeout handler:^(NSError * _Nullable error) {
if (error != nil) {
NSString *message = [NSString stringWithFormat:@"Failed to find %@ after %f seconds",element,timeout];
[self recordFailureWithDescription:message inFile:file atLine:line expected:YES];
}
}];
}
USAGE
XCUIElement *element = app.staticTexts["Name of your element"];
[self waitForElementToAppear:element withTimeout:5];
Swift
func waitForElementToAppear(element: XCUIElement, timeout: NSTimeInterval = 5, file: String = #file, line: UInt = #line) {
let existsPredicate = NSPredicate(format: "exists == true")
expectationForPredicate(existsPredicate,
evaluatedWithObject: element, handler: nil)
waitForExpectationsWithTimeout(timeout) { (error) -> Void in
if (error != nil) {
let message = "Failed to find \(element) after \(timeout) seconds."
self.recordFailureWithDescription(message, inFile: file, atLine: line, expected: true)
}
}
}
USAGE
let element = app.staticTexts["Name of your element"]
self.waitForElementToAppear(element)
or
let element = app.staticTexts["Name of your element"]
self.waitForElementToAppear(element, timeout: 10)
I use JSONP.
Basically, you add
<script src="http://..../someData.js?callback=some_func"/>
on your page.
some_func() should get called so that you are notified that the data is in.
Edit 08/13/2018: There is now support for native array operations in Cloud Firestore. See Doug's answer below.
There is currently no way to update a single array element (or add/remove a single element) in Cloud Firestore.
This code here:
firebase.firestore()
.collection('proprietary')
.doc(docID)
.set(
{ sharedWith: [{ who: "[email protected]", when: new Date() }] },
{ merge: true }
)
This says to set the document at proprietary/docID
such that sharedWith = [{ who: "[email protected]", when: new Date() }
but to not affect any existing document properties. It's very similar to the update()
call you provided however the set()
call with create the document if it does not exist while the update()
call will fail.
So you have two options to achieve what you want.
Option 1 - Set the whole array
Call set()
with the entire contents of the array, which will require reading the current data from the DB first. If you're concerned about concurrent updates you can do all of this in a transaction.
Option 2 - Use a subcollection
You could make sharedWith
a subcollection of the main document. Then
adding a single item would look like this:
firebase.firestore()
.collection('proprietary')
.doc(docID)
.collection('sharedWith')
.add({ who: "[email protected]", when: new Date() })
Of course this comes with new limitations. You would not be able to query
documents based on who they are shared with, nor would you be able to
get the doc and all of the sharedWith
data in a single operation.
If you have more than one element with the same ID, then you have invalid HTML.
But you can acheive the same result using classes instead. That's what they're designed for.
<input class='b' ... >
You can give it an ID as well if you need to, but it should be unique.
Once you've got the class in there, you can reference it with a dot instead of the hash, like so:
var value = $('#a .b').val();
or
var value = $('#a input.b').val();
which will limit it to 'b' class elements that are inputs within the form (which seems to be close to what you're asking for).
If you want a simple sugar sintax oneliner you can just:
(elements = elements.filter(element => element.id !== updatedElement.id)).push(updatedElement);
Like:
let elements = [ { id: 1, name: 'element one' }, { id: 2, name: 'element two'} ];
const updatedElement = { id: 1, name: 'updated element one' };
If you don't have id you could stringify the element like:
(elements = elements.filter(element => JSON.stringify(element) !== JSON.stringify(updatedElement))).push(updatedElement);
//objects
var array = [{id:'12', name:'Smith', value:1},{id:'13', name:'Jones', value:2}];
array.sort(function(a, b){
var a1= a.name.toLower(), b1= b.name.toLower();
if(a1== b1) return 0;
return a1> b1? 1: -1;
});
//arrays
var array =[ ['12', ,'Smith',1],['13', 'Jones',2]];
array.sort(function(a, b){
var a1= a[1], b1= b[1];
if(a1== b1) return 0;
return a1> b1? 1: -1;
});
I think this should do it.
let today = new Date();
let form_date=new Date('2019-10-23')
let difference=form_date>today ? form_date-today : today-form_date
let diff_days=Math.floor(difference/(1000*3600*24))
If it's available to you, then it's difficult to think of a reason not to use the Java 5 executor framework. Calling:
ScheduledExecutorService ex = Executors.newSingleThreadScheduledExecutor();
will give you a ScheduledExecutorService
with similar functionality to Timer
(i.e. it will be single-threaded) but whose access may be slightly more scalable (under the hood, it uses concurrent structures rather than complete synchronization as with the Timer
class). Using a ScheduledExecutorService
also gives you advantages such as:
newScheduledThreadPoolExecutor()
or the ScheduledThreadPoolExecutor
class)About the only reasons for sticking to Timer
I can think of are:
Since this is the number one hit to the question: Read multi sheet excel to list:
here is the openxlsx
solution:
filename <-"myFilePath"
sheets <- openxlsx::getSheetNames(filename)
SheetList <- lapply(sheets,openxlsx::read.xlsx,xlsxFile=filename)
names(SheetList) <- sheets
You need to convert it to milliseconds by multiplying the timestamp by 1000:
java.util.Date dateTime=new java.util.Date((long)timeStamp*1000);
With Typescript 2.1+, use Partial < T > instead of making your interface properties optional.
export interface Props {
obj: Model,
a: boolean
b: boolean
}
public static defaultProps: Partial<Props> = {
a: true
};
You can accomplish this using the function FILL to create filled polygons under the sections of your plots. You will want to plot the lines and polygons in the order you want them to be stacked on the screen, starting with the bottom-most one. Here's an example with some sample data:
x = 1:100; %# X range
y1 = rand(1,100)+1.5; %# One set of data ranging from 1.5 to 2.5
y2 = rand(1,100)+0.5; %# Another set of data ranging from 0.5 to 1.5
baseLine = 0.2; %# Baseline value for filling under the curves
index = 30:70; %# Indices of points to fill under
plot(x,y1,'b'); %# Plot the first line
hold on; %# Add to the plot
h1 = fill(x(index([1 1:end end])),... %# Plot the first filled polygon
[baseLine y1(index) baseLine],...
'b','EdgeColor','none');
plot(x,y2,'g'); %# Plot the second line
h2 = fill(x(index([1 1:end end])),... %# Plot the second filled polygon
[baseLine y2(index) baseLine],...
'g','EdgeColor','none');
plot(x(index),baseLine.*ones(size(index)),'r'); %# Plot the red line
And here's the resulting figure:
You can also change the stacking order of the objects in the figure after you've plotted them by modifying the order of handles in the 'Children'
property of the axes object. For example, this code reverses the stacking order, hiding the green polygon behind the blue polygon:
kids = get(gca,'Children'); %# Get the child object handles
set(gca,'Children',flipud(kids)); %# Set them to the reverse order
Finally, if you don't know exactly what order you want to stack your polygons ahead of time (i.e. either one could be the smaller polygon, which you probably want on top), then you could adjust the 'FaceAlpha'
property so that one or both polygons will appear partially transparent and show the other beneath it. For example, the following will make the green polygon partially transparent:
set(h2,'FaceAlpha',0.5);
contents = open(filename).read()
Style your change the Submit button to an anchor tag instead and submit using javascript:
<a class="link-button" href="javascript:submit();">Submit</a>
<a class="link-button" href="some_url">Cancel</a>
function submit() {
var form = document.getElementById("form_id");
form.submit();
}
Try this for revert all changes uncommited in local branch
$ git reset --hard HEAD
But if you see a error like this:
fatal: Unable to create '/directory/for/your/project/.git/index.lock': File exists.
You can navigate to '.git' folder then delete index.lock file:
$ cd /directory/for/your/project/.git/
$ rm index.lock
Finaly, run again the command:
$ git reset --hard HEAD
Bootstrap 3 has options to create toggle buttons based on checkboxes or radio buttons: http://getbootstrap.com/javascript/#buttons
Checkboxes
<div class="btn-group" data-toggle="buttons">
<label class="btn btn-primary active">
<input type="checkbox" checked> Option 1 (pre-checked)
</label>
<label class="btn btn-primary">
<input type="checkbox"> Option 2
</label>
<label class="btn btn-primary">
<input type="checkbox"> Option 3
</label>
</div>
Radio buttons
<div class="btn-group" data-toggle="buttons">
<label class="btn btn-primary active">
<input type="radio" name="options" id="option1" checked> Option 1 (preselected)
</label>
<label class="btn btn-primary">
<input type="radio" name="options" id="option2"> Option 2
</label>
<label class="btn btn-primary">
<input type="radio" name="options" id="option3"> Option 3
</label>
</div>
For these to work you must initialize .btn
s with Bootstrap's Javascript:
$('.btn').button();
Source Control: Anything But SourceSafe
Also: Exclusive locking is evil.
I once worked somewhere where they argued that exclusive locks meant that you were guaranteeing that people were not overwriting someone else's changes when you checked in. The problem was that in order to get any work done, if a file was locked devs would just change their local file to writable and merging (or overwriting) the source control with their version when they had the chance.
You code should look like this:
public int getElement(int[] arrayOfInts, int index) {
return arrayOfInts[index];
}
Main points here are method return type, it should match with array elements type and if you are working from main()
- this method must be static also.
CPU Bound means the rate at which process progresses is limited by the speed of the CPU. A task that performs calculations on a small set of numbers, for example multiplying small matrices, is likely to be CPU bound.
I/O Bound means the rate at which a process progresses is limited by the speed of the I/O subsystem. A task that processes data from disk, for example, counting the number of lines in a file is likely to be I/O bound.
Memory bound means the rate at which a process progresses is limited by the amount memory available and the speed of that memory access. A task that processes large amounts of in memory data, for example multiplying large matrices, is likely to be Memory Bound.
Cache bound means the rate at which a process progress is limited by the amount and speed of the cache available. A task that simply processes more data than fits in the cache will be cache bound.
I/O Bound would be slower than Memory Bound would be slower than Cache Bound would be slower than CPU Bound.
The solution to being I/O bound isn't necessarily to get more Memory. In some situations, the access algorithm could be designed around the I/O, Memory or Cache limitations. See Cache Oblivious Algorithms.
Summary: Disable scrolling of your text view, and don't constraint its height.
To do this programmatically, put the following code in viewDidLoad
:
let textView = UITextView(frame: .zero, textContainer: nil)
textView.backgroundColor = .yellow // visual debugging
textView.isScrollEnabled = false // causes expanding height
view.addSubview(textView)
// Auto Layout
textView.translatesAutoresizingMaskIntoConstraints = false
let safeArea = view.safeAreaLayoutGuide
NSLayoutConstraint.activate([
textView.topAnchor.constraint(equalTo: safeArea.topAnchor),
textView.leadingAnchor.constraint(equalTo: safeArea.leadingAnchor),
textView.trailingAnchor.constraint(equalTo: safeArea.trailingAnchor)
])
To do this in Interface Builder, select the text view, uncheck Scrolling Enabled in the Attributes Inspector, and add the constraints manually.
Note: If you have other view/s above/below your text view, consider using a UIStackView
to arrange them all.
I think the question is incomplete. if you meant that you wish to get the type information of some typeclass then below:
If you wish to print as you have specified then:
scala> def manOf[T: Manifest](t: T): Manifest[T] = manifest[T]
manOf: [T](t: T)(implicit evidence$1: Manifest[T])Manifest[T]
scala> val x = List(1,2,3)
x: List[Int] = List(1, 2, 3)
scala> println(manOf(x))
scala.collection.immutable.List[Int]
If you are in repl mode then
scala> :type List(1,2,3)
List[Int]
Or if you just wish to know what the class type then as @monkjack explains "string".getClass
might solve the purpose
One general approach I haven't seen mentioned here is to run HTML through Tidy, which can be set to spit out guaranteed-valid XHTML. Then you can use any old XML library on it.
But to your specific problem, you should take a look at this project: http://fivefilters.org/content-only/ -- it's a modified version of the Readability algorithm, which is designed to extract just the textual content (not headers and footers) from a page.
This kind of a setup is simple and elegant :
env.json
{
"development": {
"facebook_app_id": "facebook_dummy_dev_app_id",
"facebook_app_secret": "facebook_dummy_dev_app_secret",
},
"production": {
"facebook_app_id": "facebook_dummy_prod_app_id",
"facebook_app_secret": "facebook_dummy_prod_app_secret",
}
}
common.js
var env = require('env.json');
exports.config = function() {
var node_env = process.env.NODE_ENV || 'development';
return env[node_env];
};
app.js
var common = require('./routes/common')
var config = common.config();
var facebook_app_id = config.facebook_app_id;
// do something with facebook_app_id
To run in production mode :
$ NODE_ENV=production node app.js
This solution is from : http://himanshu.gilani.info/blog/2012/09/26/bootstraping-a-node-dot-js-app-for-dev-slash-prod-environment/, check it out for more detail.
You could try:
agg <- aggregate(list(x$val1, x$val2, x$val3, x$val4), by = list(x$id1, x$id2), mean)
Taken from the ReactKonvaCore.d.ts file:
onClick?(evt: Konva.KonvaEventObject<MouseEvent>): void;
So, I'd say your event type is Konva.KonvaEventObject<MouseEvent>
I use varargs frequently for constructors that can take some sort of filter object. For example, a large part of our system based on Hadoop is based on a Mapper that handles serialization and deserialization of items to JSON, and applies a number of processors that each take an item of content and either modify and return it, or return null to reject.
I suggest using the amazing tool direnv. With it you can inject environment variables once you cd into the project. These steps worked for me:
.envrc file
source_up
dotenv
.env file
_JAVA_OPTIONS="-DYourEnvHere=123"
I want to mention something that caught me first when I was trying to adapt a SpriteKit-based app to avoid the round edges and "notch" of the new iPhone X, as suggested by the latest Human Interface Guidelines: The new property safeAreaLayoutGuide
of UIView
needs to be queried after the view has been added to the hierarchy (for example, on -viewDidAppear:
) in order to report a meaningful layout frame (otherwise, it just returns the full screen size).
From the property's documentation:
The layout guide representing the portion of your view that is unobscured by bars and other content. When the view is visible onscreen, this guide reflects the portion of the view that is not covered by navigation bars, tab bars, toolbars, and other ancestor views. (In tvOS, the safe area reflects the area not covered the screen's bezel.) If the view is not currently installed in a view hierarchy, or is not yet visible onscreen, the layout guide edges are equal to the edges of the view.
(emphasis mine)
If you read it as early as -viewDidLoad:
, the layoutFrame
of the guide will be {{0, 0}, {375, 812}}
instead of the expected {{0, 44}, {375, 734}}
HOST=gmail-pop.l.google.com
PORT=995
openssl s_client -servername $HOST -connect $HOST:$PORT < /dev/null 2>/dev/null | openssl x509 -outform pem
You should use the sumif function in Excel:
=SUMIF(A5:C10;"Text_to_find";C5:C10)
This function takes a range like this square A5:C10 then you have some text to find this text can be in A or B then it will add the number from the C-row.
You are seeing the result of Type Erasure. From that page...
When a generic type is instantiated, the compiler translates those types by a technique called type erasure — a process where the compiler removes all information related to type parameters and type arguments within a class or method. Type erasure enables Java applications that use generics to maintain binary compatibility with Java libraries and applications that were created before generics.
For instance, Box<String> is translated to type Box, which is called the raw type — a raw type is a generic class or interface name without any type arguments. This means that you can't find out what type of Object a generic class is using at runtime.
This also looks like this question which has a pretty good answer as well.
In addition to the answer of Dyppl, I think it would be nice to place this inside the OnDataContextChanged
event:
private void OnDataContextChanged(object sender, DependencyPropertyChangedEventArgs e)
{
// Unforunately we cannot bind from the viewmodel to the code behind so easily, the dependency property is not available in XAML. (for some reason).
// To work around this, we create the binding once we get the viewmodel through the datacontext.
var newViewModel = e.NewValue as MyViewModel;
var executablePathBinding = new Binding
{
Source = newViewModel,
Path = new PropertyPath(nameof(newViewModel.ExecutablePath))
};
BindingOperations.SetBinding(LayoutRoot, ExecutablePathProperty, executablePathBinding);
}
We have also had cases were we just saved the DataContext
to a local property and used that to access viewmodel properties. The choice is of course yours, I like this approach because it is more consistent with the rest. You can also add some validation, like null checks. If you actually change your DataContext
around, I think it would be nice to also call:
BindingOperations.ClearBinding(myText, TextBlock.TextProperty);
to clear the binding of the old viewmodel (e.oldValue
in the event handler).
I had the same problem and was able to run a schema-less query using an existing Mongoose connection with the code below. I've added a simple constraint 'a=b' to show where you would add such a constraint:
var action = function (err, collection) {
// Locate all the entries using find
collection.find({'a':'b'}).toArray(function(err, results) {
/* whatever you want to do with the results in node such as the following
res.render('home', {
'title': 'MyTitle',
'data': results
});
*/
});
};
mongoose.connection.db.collection('question', action);
Another good solution to read and write CSV-files is filehelpers (open source).
<input type='text' minlength=3 /><br />
if browser supports html5,
it will automatical be validate attributes(minlength) in tag
but Safari(iOS) doesn't working
@this.ViewContext.RouteData.Values["controller"].ToString();
Mongodb and Mongoose are two completely different things!
Mongodb is the database itself, while Mongoose is an object modeling tool for Mongodb
EDIT: As pointed out MongoDB is the npm package, thanks!
You can find it in Nuget Package Microsoft ASP.NET Web Pages Version 3.2.0
If you have a reference to an earlier version than 3.0.0.0, Delete the reference, add the reference to the correct .dll in your packages folder and make sure "Copy Local" is set to "True" in the properties of the .dll.
Then in your web.config (as mentioned by @MichaelEvanchik)
<runtime>
<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
<dependentAssembly>
<assemblyIdentity name="System.Web.WebPages.Razor" PublicKeyToken="31bf3856ad364e35"/>
<bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0"/>
</dependentAssembly>
</assemblyBinding>
I hope this clarifies those two:
x | 2
0001 //x
0010 //2
0011 //result = 3
x & 1
0001 //x
0001 //1
0001 //result = 1
You need to specify both source and destination, and if you want to copy directories you should look at the -r option.
So to recursively copy /home/user/whatever from remote server to your current directory:
scp -pr user@remoteserver:whatever .
outside device,we can use :
adb install file.apk
or adb install -r file.apk
adb install [-l] [-r] [-s] [--algo <algorithm name> --key <hex-encoded key> --iv <hex-encoded iv>] <file>
- push this package file to the device and install it
('-l' means forward-lock the app)
('-r' means reinstall the app, keeping its data)
('-s' means install on SD card instead of internal storage)
('--algo', '--key', and '--iv' mean the file is encrypted already)
inside devices also, we can use:
pm install file.apk
or pm install -r file.apk
pm install: installs a package to the system. Options:
-l: install the package with FORWARD_LOCK.
-r: reinstall an exisiting app, keeping its data.
-t: allow test .apks to be installed.
-i: specify the installer package name.
-s: install package on sdcard.
-f: install package on internal flash.
-d: allow version code downgrade.
For more then one apk file on Linux we can use xargs
and on windows we can use for loop
.
Linux / Unix sample :
ls -1 *.apk | xargs -I xxx adb install -r xxx
Only you want to set default value parameter. This calling third overloading method.
dt.Columns.Add("MyRow", type(System.Int32),0);
You can see many options as answer for your question, however you can use "-1" where the session never expires. Since you do not know how much time it will take for the thread to complete. E.g.:
<session-config>
<session-timeout>-1</session-timeout>
</session-config>
Or if you don't want a timeout happening for some purpose:
<session-config>
<session-timeout>0</session-timeout>
</session-config>
Another option could be increase the number to 1000, etc, etc, bla, bla, bla.
But if you really want to stop and you consider that is unnecessary for your application to force the user to logout, just add a logout button and the user will decide when to leave.
Here is what you can do to solve the problem if you do not need to force to logout, and in you are loading files that could take time base on server and your computer speed and the size of the file.
<!-- sets the default session timeout to 60 minutes. -->
<!-- <session-config>
<session-timeout>60</session-timeout>
</session-config> -->
Just comment it or deleted that's it! Tan tararantan, tan tan!
In addition to what provided in the other answers, the keyword "zorder" allows one to decide the order in which different objects are plotted vertically. E.g.:
plt.plot(x,y,zorder=1)
plt.scatter(x,y,zorder=2)
plots the scatter symbols on top of the line, while
plt.plot(x,y,zorder=2)
plt.scatter(x,y,zorder=1)
plots the line over the scatter symbols.
See, e.g., the zorder demo
Use this for example:
cv2.namedWindow('finalImg', cv2.WINDOW_NORMAL)
cv2.imshow("finalImg",finalImg)
Depending on the answer from KyungHun Jeon, but the appendChild expect a dom node, so add a index to jquery object to return the node:
document.body.appendChild(form[0])
You should use cm
or mm
as unit when you specify for printing. Using pixels will cause the browser to translate it to something similar to what it looks like on screen. Using cm
or mm
will ensure consistent size on the paper.
body
{
margin: 25mm 25mm 25mm 25mm;
}
For font sizes, use pt
for the print media.
Note that setting the margin on the body in css style will not adjust the margin in the printer driver that defines the printable area of the printer, or margin controlled by the browser (may be adjustable in print preview on some browsers)... It will just set margin on the document inside the printable area.
You should also be aware that IE7++ automatically adjusts the size to best fit, and causes everything to be wrong even if you use cm
or mm
. To override this behaviour, the user must select 'Print preview' and then set the print size to 100%
(default is Shrink To Fit
).
A better option for full control on printed margins is to use the @page
directive to set the paper margin, which will affect the margin on paper outside the html body element, which is normally controlled by the browser. See http://www.w3.org/TR/1998/REC-CSS2-19980512/page.html.
This currently works in all major browsers except Safari.
In Internet explorer, the margin is actually set to this value in the settings for this printing, and if you do Preview you will get this as default, but the user can change it in the preview.
@page
{
size: auto; /* auto is the initial value */
/* this affects the margin in the printer settings */
margin: 25mm 25mm 25mm 25mm;
}
body
{
/* this affects the margin on the content before sending to printer */
margin: 0px;
}
Related answer: Disabling browser print options (headers, footers, margins) from page?
You can use
sudo apt-get install php7-mysql
or
sudo apt-get install php5-mysql
or
sudo apt-get install php-mysql
This worked for me.
In addition to @Aleksandr Tukallo's answer, you could also obtain the output and error message (if occurs). Compressing a folder using tar
is explained pretty well on the following answer.
import traceback
import subprocess
try:
cmd = ['tar', 'czfj', output_filename, file_to_archive]
output = subprocess.check_output(cmd).decode("utf-8").strip()
print(output)
except Exception:
print(f"E: {traceback.format_exc()}")
With the following you can insert multiple values and also have default values but you're creating a new dictionary.
d = {**{ key: value }, **default_values}
I've tested it with the most voted answer and on average this is faster as it can be seen in the following example, .
Speed test comparing a for loop based method with a dict comprehension with unpack operator method.
if no copy (d = default_vals.copy()
) is made on the first case then the most voted answer would be faster once we reach orders of magnitude of 10**5
and greater. Memory footprint of both methods are the same.
I suggest writing a little script and doing multiple searches with Grep. I've never found a way to search for multiple patterns, and believe me, I've looked!
Like so, your shell file, with an embedded string:
#!/bin/bash
grep *A6* "Alex A1 Alex A6 Alex A7 Bob A1 Chris A9 Chris A6";
grep *A7* "Alex A1 Alex A6 Alex A7 Bob A1 Chris A9 Chris A6";
grep *A8* "Alex A1 Alex A6 Alex A7 Bob A1 Chris A9 Chris A6";
Then run by typing myshell.sh.
If you want to be able to pass in the string on the command line, do it like this, with a shell argument--this is bash notation btw:
#!/bin/bash
$stingtomatch = "${1}";
grep *A6* "${stingtomatch}";
grep *A7* "${stingtomatch}";
grep *A8* "${stingtomatch}";
And so forth.
If there are a lot of patterns to match, you can put it in a for loop.
replace
isn't available for XSLT 1.0.
Codesling has a template for string-replace you can use as a substitute for the function:
<xsl:template name="string-replace-all">
<xsl:param name="text" />
<xsl:param name="replace" />
<xsl:param name="by" />
<xsl:choose>
<xsl:when test="$text = '' or $replace = ''or not($replace)" >
<!-- Prevent this routine from hanging -->
<xsl:value-of select="$text" />
</xsl:when>
<xsl:when test="contains($text, $replace)">
<xsl:value-of select="substring-before($text,$replace)" />
<xsl:value-of select="$by" />
<xsl:call-template name="string-replace-all">
<xsl:with-param name="text" select="substring-after($text,$replace)" />
<xsl:with-param name="replace" select="$replace" />
<xsl:with-param name="by" select="$by" />
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$text" />
</xsl:otherwise>
</xsl:choose>
</xsl:template>
invoked as:
<xsl:variable name="newtext">
<xsl:call-template name="string-replace-all">
<xsl:with-param name="text" select="$text" />
<xsl:with-param name="replace" select="a" />
<xsl:with-param name="by" select="b" />
</xsl:call-template>
</xsl:variable>
On the other hand, if you literally only need to replace one character with another, you can call translate
which has a similar signature. Something like this should work fine:
<xsl:variable name="newtext" select="translate($text,'a','b')"/>
Also, note, in this example, I changed the variable name to "newtext", in XSLT variables are immutable, so you can't do the equivalent of $foo = $foo
like you had in your original code.
Everything is fine, just one mistake is there. Change this:
$query = mysql_query("SELECT username FROM Users WHERE username=$username", $con);
$query = mysql_query("SELECT Count(*) FROM Users WHERE username=$username, $con");
if (mysql_num_rows($query) != 0)
{
echo "Username already exists";
}
else
{
...
}
SELECT *
will not work, use with SELECT COUNT(*)
.
Like you I also faced many problems implementing OCR in Android, but after much Googling I found the solution, and it surely is the best example of OCR.
Let me explain using step-by-step guidance.
First, download the source code from https://github.com/rmtheis/tess-two.
Import all three projects. After importing you will get an error.
To solve the error you have to create a res
folder in the tess-two project
First, just create res folder in tess-two by tess-two->RightClick->new Folder->Name it "res"
After doing this in all three project the error should be gone.
Now download the source code from https://github.com/rmtheis/android-ocr, here you will get best example.
Now you just need to import it into your workspace, but first you have to download android-ndk from this site:
http://developer.android.com/tools/sdk/ndk/index.html i have windows 7 - 32 bit PC so I have download http://dl.google.com/android/ndk/android-ndk-r9-windows-x86.zip this file
Now extract it suppose I have extract it into E:\Software\android-ndk-r9 so I will set this path on Environment Variable
Right Click on MyComputer->Property->Advance-System-Settings->Advance->Environment Variable-> find PATH on second below Box and set like path like below picture
done it
Now open cmd and go to on D:\Android Workspace\tess-two like below
If you have successfully set up environment variable of NDK then just type ndk-build just like above picture than enter you will not get any kind of error and all file will be compiled successfully:
Now download other source code also from https://github.com/rmtheis/tess-two , and extract and import it and give it name OCRTest, like in my PC which is in D:\Android Workspace\OCRTest
Import test-two in this and run OCRTest and run it; you will get the best example of OCR.
Simplest answer if your browser supports the trim()
function
if (myString && !myString.trim()) {
//First condition to check if string is not empty
//Second condition checks if string contains just whitespace
}
Here's the nearly shortest possible solution to your question. The solution works in python 3.x. For python 2.x change the import
to Tkinter
rather than tkinter
(the difference being the capitalization):
import tkinter as tk
#import Tkinter as tk # for python 2
def create_window():
window = tk.Toplevel(root)
root = tk.Tk()
b = tk.Button(root, text="Create new window", command=create_window)
b.pack()
root.mainloop()
This is definitely not what I recommend as an example of good coding style, but it illustrates the basic concepts: a button with a command, and a function that creates a window.
The Solution on top won't work because a submit redirects the page to the endpoint of form and wait for response to redirect. I see that this is an old Question but Most Asked and even i came to know the answer.Still here is my solution what i am implementing. I tried to keep it secure with Nonce but if you don't care then not required.
Method 1: You need to Pop up the form.
document.getElementById('edit_info_button').addEventListener('click',function(){
window.open('{% url "updateuserinfo" %}','newwindow', 'width=400,height=600,scrollbars=no');
});
Then you have the form open.
Submit the form normally.
Then return an HTTPResponse in render to a template(HTML file) With a STRICT Content Security Policy. A Variable that contains the following script. Nonce contains a Base64 128bits or larger randomly generated string for every request made to server.
<script nonce="{{nonce}}">window.close()</script>
Method 2:
Or you can redirect to another Page which is suppose to close ...
Which already Contains the window.close()
script.
This will close the pop up window.
Method 3:
Otherwise the simplest will be Use a Ajax call if you are comfortable with one.Use then() and check your condition to the httpresponse from the server.Close the window when success.
Here is a CoffeeScript solution.
I was looking for the same solution and found seomething very intersting from this answer: Rejecting promises with multiple arguments (like $http) in AngularJS
the answer of this guy Florian
promise = deferred.promise
promise.success = (fn) ->
promise.then (data) ->
fn(data.payload, data.status, {additional: 42})
return promise
promise.error = (fn) ->
promise.then null, (err) ->
fn(err)
return promise
return promise
And to use it:
service.get().success (arg1, arg2, arg3) ->
# => arg1 is data.payload, arg2 is data.status, arg3 is the additional object
service.get().error (err) ->
# => err
While using formControl
, you have to import ReactiveFormsModule
to your imports
array.
Example:
import {FormsModule, ReactiveFormsModule} from '@angular/forms';
@NgModule({
imports: [
BrowserModule,
FormsModule,
ReactiveFormsModule,
MaterialModule,
],
...
})
export class AppModule {}
I did it by writing a little C# app that just wakes up to launch periodic tasks -- don't know if it is doable from a batch file without downloading extensions to support a sleep command. (For my purposes the Windows scheduler didn't work because the apps launched had no graphics context available.)
Try out Following:
DataRow rows = DataTable.Select("[Name]<>'n/a'")
For Null check in This:
DataRow rows = DataTable.Select("[Name] <> 'n/a' OR [Name] is NULL" )
There is nothing wrong with your code. It's the NBC.com doing tricks on you. When NBC.com decides that your browser is not capable of displaying PDF, it simply sends back a webpage regardless what you are requesting, even if it doesn't exist.
You need to trick it back by telling it your browser is capable, something like,
conn.setRequestProperty("User-Agent",
"Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.13) Gecko/2009073021 Firefox/3.0.13");
You can use selectedOptions
var selectedValues = Array.from(document.getElementById('select-meal-type').selectedOptions).map(el=>el.value);
console.log(selectedValues);
_x000D_
<select id="select-meal-type" multiple="multiple">
<option value="1">Breakfast</option>
<option value="2" selected>Lunch</option>
<option value="3">Dinner</option>
<option value="4" selected>Snacks</option>
<option value="5">Dessert</option>
</select>
_x000D_
Just be aware of TempData persistence, it's a bit tricky. For example if you even simply read TempData inside the current request, it would be removed and consequently you don't have it for the next request. Instead, you can use Peek
method. I would recommend reading this cool article:
As of Visual Studio 2012, Microsoft no longer provides the built-in deployment package. If you wish to use this package, you will need to use VS2010.
In 2013 you have several options:
In my projects I create my own installers from scratch, which, since I do not use Windows Installer, have the advantage of being super fast, even on old machines.
Supplement to Mario Knezovic 's answer:
class IA
{
public:
virtual int getNum() const = 0;
};
class BaseA : public IA
{
public:
inline virtual int getNum() const final {return ...};
};
class ImplA : public BaseA {...};
IA* pa = ...;
...
ImplA* impla = static_cast<ImplA*>(pa);
//the following line should cause compiler to use the inlined function BaseA::getNum(),
//instead of dynamic binding (via vtable or something).
//any class/subclass of BaseA will benefit from it
int n = impla->getNum();
The above code shows the theory, but not actually tested on real compilers. Much appreciated if anyone paste a disassembled output.
The syntax for creating a new table is
CREATE TABLE new_table
AS
SELECT *
FROM old_table
This will create a new table named new_table
with whatever columns are in old_table
and copy the data over. It will not replicate the constraints on the table, it won't replicate the storage attributes, and it won't replicate any triggers defined on the table.
SELECT INTO
is used in PL/SQL when you want to fetch data from a table into a local variable in your PL/SQL block.
I tried the other solutions in the answers here but had no luck. Since I only needed to extract the value from a single xml node I gave in and wrote my function to do so:
def ParseXmlTagContents(source, tag, tagContentsRegex):
openTagString = "<"+tag+">"
closeTagString = "</"+tag+">"
found = re.search(openTagString + tagContentsRegex + closeTagString, source)
if found:
start = found.regs[0][0]
end = found.regs[0][1]
return source[start+len(openTagString):end-len(closeTagString)]
return ""
Example usage would be:
<?xml version="1.0" encoding="utf-16"?>
<parentNode>
<childNode>123</childNode>
</parentNode>
ParseXmlTagContents(xmlString, "childNode", "[0-9]+")
In CFEclipse: Preferences > CFEclipse > Editor > Code Folding > Initially Collapse column, you can uncheck to see all expanded when opening, or check all boxes to close all when opening a file.
I can't speak for the 2nd or 3rd, but if you install Node first, Sublime-HTMLPrettify works pretty well. You have to setup your own key shortcut once it is installed. One thing I noticed on Windows, you may need to edit your path for Node in the %PATH% variable if it is already long (I think the limit is 1024 for the %PATH% variable, and anything after that is ignored.)
There is a Windows bug, but in the issues there is a fix for it. You'll need to edit the HTMLPrettify.py file - https://github.com/victorporof/Sublime-HTMLPrettify/issues/12
I hope this complete example will help you.
This is the TaxiInfo class which holds information about a taxi ride:
namespace Taxi.Models
{
public class TaxiInfo
{
public String Driver { get; set; }
public Double Fare { get; set; }
public Double Distance { get; set; }
public String StartLocation { get; set; }
public String EndLocation { get; set; }
}
}
We also have a convenience model which holds a List of TaxiInfo(s):
namespace Taxi.Models
{
public class TaxiInfoSet
{
public List<TaxiInfo> TaxiInfoList { get; set; }
public TaxiInfoSet(params TaxiInfo[] TaxiInfos)
{
TaxiInfoList = new List<TaxiInfo>();
foreach(var TaxiInfo in TaxiInfos)
{
TaxiInfoList.Add(TaxiInfo);
}
}
}
}
Now in the home controller we have the default Index action which for this example makes two taxi drivers and adds them to the list contained in a TaxiInfo:
public ActionResult Index()
{
var taxi1 = new TaxiInfo() { Fare = 20.2, Distance = 15, Driver = "Billy", StartLocation = "Perth", EndLocation = "Brisbane" };
var taxi2 = new TaxiInfo() { Fare = 2339.2, Distance = 1500, Driver = "Smith", StartLocation = "Perth", EndLocation = "America" };
return View(new TaxiInfoSet(taxi1,taxi2));
}
The code for the view is as follows:
@model Taxi.Models.TaxiInfoSet
@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
@foreach(var TaxiInfo in Model.TaxiInfoList){
<form>
<h1>Cost: [email protected]</h1>
<h2>Distance: @(TaxiInfo.Distance) km</h2>
<p>
Our diver, @TaxiInfo.Driver will take you from @TaxiInfo.StartLocation to @TaxiInfo.EndLocation
</p>
@Html.ActionLink("Home","Booking",TaxiInfo)
</form>
}
The ActionLink is responsible for the re-directing to the booking action of the Home controller (and passing in the appropriate TaxiInfo object) which is defiend as follows:
public ActionResult Booking(TaxiInfo Taxi)
{
return View(Taxi);
}
This returns a the following view:
@model Taxi.Models.TaxiInfo
@{
ViewBag.Title = "Booking";
}
<h2>Booking For</h2>
<h1>@Model.Driver, going from @Model.StartLocation to @Model.EndLocation (a total of @Model.Distance km) for [email protected]</h1>
A visual tour:
Here are some examples from this blog mentioned earlier:
<configuration>
<Database>
<add key="ConnectionString" value="data source=.;initial catalog=NorthWind;integrated security=SSPI"/>
</Database>
</configuration>
get values:
NameValueCollection db = (NameValueCollection)ConfigurationSettings.GetConfig("Database");
labelConnection2.Text = db["ConnectionString"];
-
Another example:
<Locations
ImportDirectory="C:\Import\Inbox"
ProcessedDirectory ="C:\Import\Processed"
RejectedDirectory ="C:\Import\Rejected"
/>
get value:
Hashtable loc = (Hashtable)ConfigurationSettings.GetConfig("Locations");
labelImport2.Text = loc["ImportDirectory"].ToString();
labelProcessed2.Text = loc["ProcessedDirectory"].ToString();
Always use double quotes when using a variable inside a string and backslash any other double quotes except the starting and ending ones. You could also use the brackets like below so it's easier to find your variables inside the strings and make them look cleaner.
$var = 'my variable';
echo "I love ${var}";
or
$var = 'my variable';
echo "I love {$var}";
Above would return the following: I love my variable
int secondDimensionSize = nir[0].length;
Each element of the first dimension is actually another array with the length of the second dimension.
Araxis Merge http://www.araxis.com/merge I'm using it on Mac OS X but I've used it on windows... it's not free... but it has some nice features... nicer on windows though.
First of all Arrays class is an utility class which contains no. of utility methods to operate on Arrays (thanks to Arrays class otherwise we would have needed to create our own methods to act on Array objects)
asList
method is one of the utility methods of Array
class ,it is static method thats why we can call this method by its class name (like Arrays.asList(T...a)
)ArrayList
object, it just returns a List reference to existing Array
object(so now after using asList
method, two references to existing Array
object gets created)List
object , may NOT work on this Array object using List
reference like
for example, Array
s size is fixed in length, hence you obviously can not add or remove elements from Array
object using this List
reference (like list.add(10)
or list.remove(10);
else it will throw UnsupportedOperationException)Array
s object ( as you are operating on existing Array object by using list reference)In first case you are creating a new Arraylist
object (in 2nd case only reference to existing Array object is created but not a new ArrayList
object) ,so now there are two different objects one is Array
object and another is ArrayList
object and no connection between them ( so changes in one object will not be reflected/affected in another object ( that is in case 2 Array
and Arraylist
are two different objects)
Integer [] ia = {1,2,3,4};
System.out.println("Array : "+Arrays.toString(ia));
List<Integer> list1 = new ArrayList<Integer>(Arrays.asList(ia)); // new ArrayList object is created , no connection between existing Array Object
list1.add(5);
list1.add(6);
list1.remove(0);
list1.remove(0);
System.out.println("list1 : "+list1);
System.out.println("Array : "+Arrays.toString(ia));
Integer [] ia = {1,2,3,4};
System.out.println("Array : "+Arrays.toString(ia));
List<Integer> list2 = Arrays.asList(ia); // creates only a (new ) List reference to existing Array object (and NOT a new ArrayList Object)
// list2.add(5); // it will throw java.lang.UnsupportedOperationException - invalid operation (as Array size is fixed)
list2.set(0,10); // making changes in existing Array object using List reference - valid
list2.set(1,11);
ia[2]=12; // making changes in existing Array object using Array reference - valid
System.out.println("list2 : "+list2);
System.out.println("Array : "+Arrays.toString(ia));
Just add the following rules to the parent element:
display: flex;
justify-content: center; /* align horizontal */
align-items: center; /* align vertical */
Here's a sample demo (Resize window to see the image align)
Browser support for Flexbox nowadays is quite good.
For cross-browser compatibility for display: flex
and align-items
, you can add the older flexbox syntax as well:
display: -webkit-box;
display: -webkit-flex;
display: -moz-box;
display: -ms-flexbox;
display: flex;
-webkit-flex-align: center;
-ms-flex-align: center;
-webkit-align-items: center;
align-items: center;
Function makeRed
and makeBlack
use queue
and dequeue
to execute each other. The effect is that, the '#wow' element blinks continuously.
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$('#wow').click(function(){
$(this).delay(200).queue(makeRed);
});
});
function makeRed(){
$('#wow').css('color', 'red');
$('#wow').delay(200).queue(makeBlack);
$('#wow').dequeue();
}
function makeBlack(){
$('#wow').css('color', 'black');
$('#wow').delay(200).queue(makeRed);
$('#wow').dequeue();
}
</script>
</head>
<body>
<div id="wow"><p>wow</p></div>
</body>
</html>
Just to complement Mr @potatosalad answer.
You don't actually need to access the function scope to get the result on the onload callback, you can freely do the following on the event parameter:
var arrayBuffer;
var fileReader = new FileReader();
fileReader.onload = function(event) {
arrayBuffer = event.target.result;
};
fileReader.readAsArrayBuffer(blob);
Why this is better? Because then we may use arrow function without losing the context
var fileReader = new FileReader();
fileReader.onload = (event) => {
this.externalScopeVariable = event.target.result;
};
fileReader.readAsArrayBuffer(blob);
It's a tradeoff, that only the programmer can decide to make.
Case 1 saves some memory and startup time by not importing the datetime module (and doing whatever initialization it might require) until needed. Note that doing the import 'only when called' also means doing it 'every time when called', so each call after the first one is still incurring the additional overhead of doing the import.
Case 2 save some execution time and latency by importing datetime beforehand so that not_often_called() will return more quickly when it is called, and also by not incurring the overhead of an import on every call.
Besides efficiency, it's easier to see module dependencies up front if the import statements are ... up front. Hiding them down in the code can make it more difficult to easily find what modules something depends on.
Personally I generally follow the PEP except for things like unit tests and such that I don't want always loaded because I know they aren't going to be used except for test code.
You get the Dimension first and then manipulate it through flex style
var Dimensions = require('Dimensions')
var {width, height} = Dimensions.get('window')
In render
<View style={{flex: 1}}>
<View style={{width: width, height: height - 200}}>main</View>
<View style={{width: width, height: 200}}>footer</View>
</View>
The other method is to use flex
<View style={{flex: 1}}>
<View style={{flex: .8}}>main</View>
<View style={{flex: .2}}>footer</View>
</View>
There's now add_row()
from the tibble
or tidyverse
packages.
library(tidyverse)
df %>% add_row(hello = "hola", goodbye = "ciao")
Unspecified columns get an NA
.
This approach can be used to automate this (the following exemplary solution is in python, although obviously it can be ported to any language):
you can strip the whitespace beforehand AND save the positions of non-whitespace characters so you can use them later to find out the matched string boundary positions in the original string like the following:
def regex_search_ignore_space(regex, string):
no_spaces = ''
char_positions = []
for pos, char in enumerate(string):
if re.match(r'\S', char): # upper \S matches non-whitespace chars
no_spaces += char
char_positions.append(pos)
match = re.search(regex, no_spaces)
if not match:
return match
# match.start() and match.end() are indices of start and end
# of the found string in the spaceless string
# (as we have searched in it).
start = char_positions[match.start()] # in the original string
end = char_positions[match.end()] # in the original string
matched_string = string[start:end] # see
# the match WITH spaces is returned.
return matched_string
with_spaces = 'a li on and a cat'
print(regex_search_ignore_space('lion', with_spaces))
# prints 'li on'
If you want to go further you can construct the match object and return it instead, so the use of this helper will be more handy.
And the performance of this function can of course also be optimized, this example is just to show the path to a solution.
Originally, I created a database and then restored the backup file to my new empty database:
Right click on Databases > Restore Database > General : Device: [the path of back up file] ? OK
This was wrong. I shouldn't have first created the database.
Now, instead, I do this:
Right click on Databases > Restore Database > General : Device: [the path of back up file] ? OK
As of 2019, this solution has worked for me:
document.dispatchEvent(
new KeyboardEvent("keydown", {
key: "e",
keyCode: 69, // example values.
code: "KeyE", // put everything you need in this object.
which: 69,
shiftKey: false, // you don't need to include values
ctrlKey: false, // if you aren't going to use them.
metaKey: false // these are here for example's sake.
})
);
I used this in my browser game, in order to support mobile devices with a simulated keypad.
Clarification: This code dispatches a single keydown
event, while a real key press would trigger one keydown
event (or several of them if it is held longer), and then one keyup
event when you release that key. If you need keyup
events too, it is also possible to simulate keyup
events by changing "keydown"
to "keyup"
in the code snippet.
This also sends the event to the entire webpage, hence the document
. If you want only a specific element to receive the event, you can substitute document
for the desired element.
You can't do it with just CSS, but you can do it with Javascript, and (optionally) jQuery.
If you want to do it without jQuery:
<script>
window.onload = function() {
var anchors = document.getElementsByTagName('a');
for(var i = 0; i < anchors.length; i++) {
var anchor = anchors[i];
anchor.onclick = function() {
alert('ho ho ho');
}
}
}
</script>
And to do it without jQuery, and only on a specific class (ex: hohoho
):
<script>
window.onload = function() {
var anchors = document.getElementsByTagName('a');
for(var i = 0; i < anchors.length; i++) {
var anchor = anchors[i];
if(/\bhohoho\b/).match(anchor.className)) {
anchor.onclick = function() {
alert('ho ho ho');
}
}
}
}
</script>
If you are okay with using jQuery, then you can do this for all anchors:
<script>
$(document).ready(function() {
$('a').click(function() {
alert('ho ho ho');
});
});
</script>
And this jQuery snippet to only apply it to anchors with a specific class:
<script>
$(document).ready(function() {
$('a.hohoho').click(function() {
alert('ho ho ho');
});
});
</script>
You can use stack
from the base package. But, you need first to coerce your matrix to a data.frame
and to reorder the columns once the data is stacked.
mat <- as.data.frame(mat)
res <- data.frame(time= mat$time,stack(mat,select=-time))
res[,c(3,1,2)]
ind time values
1 C_0 0.0 0.1
2 C_0 0.5 0.2
3 C_0 1.0 0.3
4 C_1 0.0 0.3
5 C_1 0.5 0.4
6 C_1 1.0 0.5
Note that stack
is generally more efficient than the reshape2
package.
You can also have a global user git .gitignore
file that will apply automatically to all your repos. This is useful for IDE and editor files (e.g. swp
and *~
files for Vim). Change directory locations to suit your OS.
Add to your ~/.gitconfig
file:
[core]
excludesfile = /home/username/.gitignore
Create a ~/.gitignore
file with file patterns to be ignored.
Save your dot files in another repo so you have a backup (optional).
Any time you copy, init or clone a repo, your global gitignore file will be used as well.
This is a solution that, in addition to checking state when writing, also toggles the warning message each time the Caps Lock key is pressed (with some limitations).
It also supports non-english letters outside the A-Z range, as it checks the string character against toUpperCase()
and toLowerCase()
instead of checking against character range.
$(function(){_x000D_
//Initialize to hide caps-lock-warning_x000D_
$('.caps-lock-warning').hide();_x000D_
_x000D_
//Sniff for Caps-Lock state_x000D_
$("#password").keypress(function(e) {_x000D_
var s = String.fromCharCode( e.which );_x000D_
if((s.toUpperCase() === s && s.toLowerCase() !== s && !e.shiftKey)||_x000D_
(s.toUpperCase() !== s && s.toLowerCase() === s && e.shiftKey)) {_x000D_
this.caps = true; // Enables to do something on Caps-Lock keypress_x000D_
$(this).next('.caps-lock-warning').show();_x000D_
} else if((s.toLowerCase() === s && s.toUpperCase() !== s && !e.shiftKey)||_x000D_
(s.toLowerCase() !== s && s.toUpperCase() === s && e.shiftKey)) {_x000D_
this.caps = false; // Enables to do something on Caps-Lock keypress_x000D_
$(this).next('.caps-lock-warning').hide();_x000D_
}//else else do nothing if not a letter we can use to differentiate_x000D_
});_x000D_
_x000D_
//Toggle warning message on Caps-Lock toggle (with some limitation)_x000D_
$(document).keydown(function(e){_x000D_
if(e.which==20){ // Caps-Lock keypress_x000D_
var pass = document.getElementById("password");_x000D_
if(typeof(pass.caps) === 'boolean'){_x000D_
//State has been set to a known value by keypress_x000D_
pass.caps = !pass.caps;_x000D_
$(pass).next('.caps-lock-warning').toggle(pass.caps);_x000D_
}_x000D_
}_x000D_
});_x000D_
_x000D_
//Disable on window lost focus (because we loose track of state)_x000D_
$(window).blur(function(e){_x000D_
// If window is inactive, we have no control on the caps lock toggling_x000D_
// so better to re-set state_x000D_
var pass = document.getElementById("password");_x000D_
if(typeof(pass.caps) === 'boolean'){_x000D_
pass.caps = null;_x000D_
$(pass).next('.caps-lock-warning').hide();_x000D_
}_x000D_
});_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<input type="password" id="password" />_x000D_
<span class="caps-lock-warning" title="Caps lock is on!">CAPS</span>
_x000D_
Note that observing caps lock toggling is only useful if we know the state of the caps lock before the Caps Lock key is pressed. The current caps lock state is kept with a caps
JavaScript property on the password element. This is set the first time we have a validation of the caps lock state when the user presses a letter that can be upper or lower case. If the window loses focus, we can no longer observe caps lock toggling, so we need to reset to an unknown state.
One potential gotcha that has bitten me before:
I like to have at most one @Before
method in each test class, because order of running the @Before
methods defined within a class is not guaranteed. Typically, I will call such a method setUpTest()
.
But, although @Before
is documented as The @Before methods of superclasses will be run before those of the current class. No other ordering is defined.
, this only applies if each method marked with @Before
has a unique name in the class hierarchy.
For example, I had the following:
public class AbstractFooTest {
@Before
public void setUpTest() {
...
}
}
public void FooTest extends AbstractFooTest {
@Before
public void setUpTest() {
...
}
}
I expected AbstractFooTest.setUpTest()
to run before FooTest.setUpTest()
, but only FooTest.setupTest()
was executed. AbstractFooTest.setUpTest()
was not called at all.
The code must be modified as follows to work:
public void FooTest extends AbstractFooTest {
@Before
public void setUpTest() {
super.setUpTest();
...
}
}
On my website, to check if registering people is 18 years old, I simply used the following :
$legalAge = date('Y-m-d', strtotime('-18 year'));
After, only compare the the two dates.
Hope it could help someone.
I had an issue uploading images to my React JS project. I was trying to use the file-loader to load the images; I was also using Babel-loader in my react.
I used the following settings in the webpack:
{test: /\.(jpe?g|png|gif|svg)$/i, loader: "file-loader?name=app/images/[name].[ext]"},
This helped load my images, but the images loaded were kind of corrupted. Then after some research I came to know that file-loader has a bug of corrupting the images when babel-loader is installed.
Hence, to work around the issue I tried to use URL-loader which worked perfectly for me.
I updated my webpack with the following settings
{test: /\.(jpe?g|png|gif|svg)$/i, loader: "url-loader?name=app/images/[name].[ext]"},
I then used the following command to import the images
import img from 'app/images/GM_logo_2.jpg'
<div className="large-8 columns">
<img style={{ width: 300, height: 150 }} src={img} />
</div>
For me, brew
had updated the gnupg
or gpg
so all I had to do to fix this is.
brew link --overwrite gnupg
That linked the gpg
to the right place, as I can confirm via which gpg
and everything worked after that.
Just add those below line in pom.xml file on the top of <modelversion>
tag:
<repositories>
<repository>
<id>central</id>
<name>Central Repository</name>
<url>http://repo.maven.apache.org/maven2</url>
<layout>default</layout>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
I ran into this problem and was solved by checking the min sdk version in the manifest. It was set to 15 (ICS), but my phone was running 10(Gingerbread)
The actual URL syntax is pretty complicated and not easy to represent in regex. Most of the simple-looking regexes out there will give many false negatives as well as false positives. See for amusement these efforts but even the end result is not good.
Plus these days you would generally want to allow IRI as well as old-school URI, so we can link to valid addresses like:
http://en.wikipedia.org/wiki/Þ
http://??.???/
I would go only for simple checks: does it start with a known-good method: name? Is it free of spaces and double-quotes? If so then hell, it's probably good enough.
Amiram's answer is correct, but Distinct() as implemented is an N2 operation; for each item in the list, the algorithm compares it to all the already processed elements, and returns it if it's unique or ignores it if not. We can do better.
A sorted list can be deduped in linear time; if the current element equals the previous element, ignore it, otherwise return it. Sorting is NlogN, so even having to sort the collection, we get some benefit:
public static IEnumerable<T> SortAndDedupe<T>(this IEnumerable<T> input)
{
var toDedupe = input.OrderBy(x=>x);
T prev;
foreach(var element in toDedupe)
{
if(element == prev) continue;
yield return element;
prev = element;
}
}
//Usage
dtList = dtList.Where(s => !string.IsNullOrWhitespace(s)).SortAndDedupe().ToList();
This returns the same elements; they're just sorted.
This will print out boolean value as it is, instead of 1/0.
$bool = false;
echo json_encode($bool); //false
This question comes in top of Google search when you find "golang current time format" so, for all the people that want to use another format, remember that you can always call to:
t := time.Now()
t.Year()
t.Month()
t.Day()
t.Hour()
t.Minute()
t.Second()
For example, to get current date time as "YYYY-MM-DDTHH:MM:SS" (for example 2019-01-22T12:40:55) you can use these methods with fmt.Sprintf:
t := time.Now()
formatted := fmt.Sprintf("%d-%02d-%02dT%02d:%02d:%02d",
t.Year(), t.Month(), t.Day(),
t.Hour(), t.Minute(), t.Second())
As always, remember that docs are the best source of learning: https://golang.org/pkg/time/
If I understand correct you will have something like this:
<input value="default" id="sth" name="sth" type="hidden">
And to get it you have to write:
@Html.HiddenFor(m => m.sth, new { Value = "default" })
for Strongly-typed view.
In my case removing 2 factor authentication solves my problem.
The AtomicBoolean
class gives you a boolean value that you can update atomically. Use it when you have multiple threads accessing a boolean variable.
The java.util.concurrent.atomic package overview gives you a good high-level description of what the classes in this package do and when to use them. I'd also recommend the book Java Concurrency in Practice by Brian Goetz.
In SQL Server 2016 (13.x) and above
DROP TABLE IF EXISTS dbo.Scores
In earlier versions
IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL
DROP TABLE dbo.Scores;
U is your table type
I had similar issue while running emulator on mac os. After lot of struggle I found that I had incorrect sdk path set in .bash_profile. I have two installations of android and it was causing that issue. I managed to fix by matching ANDROID_SDK_ROOT path in .bash_profile with sdk I am using inside android studio.
If you want to extend the amount of time permitted for an ASP.NET script to execute then increase the Server.ScriptTimeout
value. The default is 90 seconds for .NET 1.x and 110 seconds for .NET 2.0 and later.
For example:
// Increase script timeout for current page to five minutes
Server.ScriptTimeout = 300;
This value can also be configured in your web.config
file in the httpRuntime
configuration element:
<!-- Increase script timeout to five minutes -->
<httpRuntime executionTimeout="300"
... other configuration attributes ...
/>
Please note according to the MSDN documentation:
"This time-out applies only if the debug attribute in the compilation element is False. Therefore, if the debug attribute is True, you do not have to set this attribute to a large value in order to avoid application shutdown while you are debugging."
If you've already done this but are finding that your session is expiring then increase the
ASP.NET HttpSessionState.Timeout
value:
For example:
// Increase session timeout to thirty minutes
Session.Timeout = 30;
This value can also be configured in your web.config
file in the sessionState
configuration element:
<configuration>
<system.web>
<sessionState
mode="InProc"
cookieless="true"
timeout="30" />
</system.web>
</configuration>
If your script is taking several minutes to execute and there are many concurrent users then consider changing the page to an Asynchronous Page. This will increase the scalability of your application.
The other alternative, if you have administrator access to the server, is to consider this long running operation as a candidate for implementing as a scheduled task or a windows service.
Refer this question: The mouseEvent.offsetX I am getting is much larger than actual canvas size .I have given a function there which will exactly suit in your situation
Well why don't you simply write:
if b:
print a
else:
print 'b is false'
SELECT user_id
FROM user_logs
WHERE login_date BETWEEN '2014-02-01' AND '2014-03-01'
Between keyword works exceptionally for a date. it assumes the time is at 00:00:00 (i.e. midnight) for dates.
I use this command to print the status code without any other output. Additionally, it will only perform a HEAD request and follow the redirection (respectively -I
and -L
).
curl -o -I -L -s -w "%{http_code}" http://localhost
This makes it very easy to check the status code in a health script:
sh -c '[ $(curl -o -I -L -s -w "%{http_code}" http://localhost) -eq 200 ]'
First you may check query
when the target column is type bool
(PS: about how to use it please check link )
df.query('BoolCol')
Out[123]:
BoolCol
10 True
40 True
50 True
After we filter the original df by the Boolean column we can pick the index .
df=df.query('BoolCol')
df.index
Out[125]: Int64Index([10, 40, 50], dtype='int64')
Also pandas have nonzero
, we just select the position of True
row and using it slice the DataFrame
or index
df.index[df.BoolCol.nonzero()[0]]
Out[128]: Int64Index([10, 40, 50], dtype='int64')
Follow this procedures
1 .Add MessageUI.Framework
to project
2 . Import #import <MessageUI/MessageUI.h>
in .h file.
3 . Copy this code for sending message
if ([MFMessageComposeViewController canSendText]) {
MFMessageComposeViewController *messageComposer =
[[MFMessageComposeViewController alloc] init];
NSString *message = @"Message!!!";
[messageComposer setBody:message];
messageComposer.messageComposeDelegate = self;
[self presentViewController:messageComposer animated:YES completion:nil];
}
4 . Implement delegate
method if you want to.
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result{
///your stuff here
[self dismissViewControllerAnimated:YES completion:nil];
}
Run And GO!
Test castEnum = static_cast<Test>(a-1);
will cast a
to A
. If you don't want to substruct 1, you can redefine the enum
:
enum Test
{
A:1, B
};
In this case Test castEnum = static_cast<Test>(a);
could be used to cast a
to A
.
Based on your edit and comments.. would this be what you're after?
byte[] newByteArray = UTF8Encoding.UTF8.GetBytes(Convert.ToBase64String(currentByteArray));
Instructions for editing your PYTHONPATH or fixing import resolution problems for code inspection are as follows:
?,
).Look for Project Structure
in the sidebar on the left under Project: Your Project Name
Add or remove modules on the right sidebar
EDIT: I have updated this screen shot for PyCharm 4.5
it is the problem of misunderstand of cookie. Browsers recognize cookie values for not just keys also compare the options path & domain. So Browsers recognize different value which cookie values that key is 'name' with server setting option(path='/'; domain='mydomain.com') and key is 'name' with no option.
via npm:
# npm cache clean -f
# npm install -g n
# n stable
and also you can specify a desired version:
# n 0.8.21
Use the "Edit top 200" option, then click on "Show SQL panel", modify your query with your WHERE clause, and execute the query. You'll be able to edit the results.
as the error says 'No installed build tools found' it means that
1 : It really really really did not found build tools
2 : To make him find build tools you need to define these paths correctly
PATH IS SAME FOR UBUNTU(.bashrc) AND MAC(.bash_profile)
export ANDROID_HOME=/Users/vijay/Software/android-sdk-macosx
export PATH=${PATH}:/Users/vijay/Software/android-sdk-macosx/tools
export PATH=${PATH}:/Users/vijay/Software/android-sdk-macosx/platform-tools
3 : IMPORTANT IMPORTANT as soon as you set environmental variables you need to reload evnironmental variables.
//For ubuntu
$source .bashrc
//For macos
$source .bash_profile
4 : Then check in terminal
$printenv ANDROID_HOME
$printenv PATH
Note : if you did not find your changes in printenv then restart the pc and try again printenv PATH, printenv ANDROID_HOME .There is also command to reload environmental variables .
4 : then open terminal and write HALF TEXT '$and' and hit tab. On hitting tab you should see full '$android' name.this verifys all paths are correct
5 : write $android in terminal and hit enter
max_connections
You can change max_connections
while MySQL is running via SET
:
mysql> SET GLOBAL max_connections = 5000;
Query OK, 0 rows affected (0.00 sec)
mysql> SHOW VARIABLES LIKE "max_connections";
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| max_connections | 5000 |
+-----------------+-------+
1 row in set (0.00 sec)
timeout
relatedI had never seen your error message before, so I googled. probably, you are using Connector/Net. Connector/Net Manual says there is max connection pool size. (default is 100) see table 22.21.
I suggest that you increase this value to 100k or disable connection pooling Pooling=false
he has two questions.
Q1 - what happens if I disable pooling
Slow down making DB connection. connection pooling
is a mechanism that use already made DB connection. cost of Making new connection is high. http://en.wikipedia.org/wiki/Connection_pool
Q2 - Can the value of pooling be increased or the maximum is 100?
you can increase but I'm sure what is MAX value, maybe max_connections
in my.cnf
My suggestion is that do not turn off Pooling, increase value by 100 until there is no connection error.
If you have Stress Test tool like JMeter
you can test youself.
To accomodate both data scenarios you have, you will want to use this:
datevalue(text(a2,"mm/dd/yyyy"))
That will give you the date number representation for a cell that Excel has in date, or in text datatype.
I just want to notice that the geneated code is offen the same if you use pre/post incrementation where the semantic (of pre/post) doesn't matter.
example:
pre.cpp:
#include <iostream>
int main()
{
int i = 13;
i++;
for (; i < 42; i++)
{
std::cout << i << std::endl;
}
}
post.cpp:
#include <iostream>
int main()
{
int i = 13;
++i;
for (; i < 42; ++i)
{
std::cout << i << std::endl;
}
}
_
$> g++ -S pre.cpp
$> g++ -S post.cpp
$> diff pre.s post.s
1c1
< .file "pre.cpp"
---
> .file "post.cpp"
If you're looking to retrieve records within the last 7 days, you can use the snippet below:
SELECT date FROM table_name WHERE DATE(date) >= CURDATE() - INTERVAL 7 DAY;
I think you want to access list values and their indices simultaneously and separately:
l = [[2,2,2],[3,3,3],[4,4,4],[5,5,5]]
l_len = len(l)
l_item_len = len(l[0])
for i in range(l_len):
for j in range(l_item_len):
print(f'List[{i}][{j}] : {l[i][j]}' )
You can do it using javascript
Plain javascript
var iframe = document.getElementsByTagName('iframe')[0];
iframe.style.background = 'white';
iframe.contentWindow.document.body.style.backgroundColor = 'white';
jQuery
$('iframe').css('background', 'white');
$('iframe').contents().find('body').css('backgroundColor', 'white');
I could use the GetBody
from Request package.
Look this comment in source code from request.go in net/http:
GetBody defines an optional func to return a new copy of Body. It is used for client requests when a redirect requires reading the body more than once. Use of GetBody still requires setting Body. For server requests it is unused."
GetBody func() (io.ReadCloser, error)
This way you can get the body request without make it empty.
Sample:
getBody := request.GetBody
copyBody, err := getBody()
if err != nil {
// Do something return err
}
http.DefaultClient.Do(request)
If elem.find()
is not working for you, check that you are including JQuery script before angular script....
To keep the change in file but not to commit I did this
git add .
git reset -- main/dontcheckmein.txt
git commit -m "commit message"
to verify the file is excluded do
git status
You're better off looking at argparse for argument parsing.
http://docs.python.org/dev/library/argparse.html
Just makes it easy, no need to do the heavy lifting yourself.
What you want can be achieved by modifying the hosts file through Fiddler 2 application.
Follow these steps:
Install Fiddler2
Navigate to Fiddler2 menu:- Tools > HOSTS.. (Click to select)
Add a line like this:-
localhost:8080 www.mydomainname.com
Save the file & then checkout
www.mydomainname.com
in browser.
HTML
<!-- Button trigger modal -->
<button type="button" class="btn btn-primary btn-lg">
Launch demo modal
</button>
<!-- Modal -->
<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
<h4 class="modal-title" id="myModalLabel">Modal title</h4>
</div>
<div class="modal-body">
...
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary">Save changes</button>
</div>
</div>
</div>
</div>
JS
$('button').click(function(){
$('#myModal').modal('show');
});
you can define it like this :
let table = $('.datatable-sales').DataTable({
processing: true,
responsive: true,
serverSide: true,
ajax: {
url: "<?php echo site_url("your url"); ?>",
cache: false,
type: "POST",
data: {
<?php echo your api; ?>,
}
}
or like this :
$.get({url: <?php echo json_encode(site_url('your api'))?>, cache: false})
hope it helps
I was getting same error while I tried to connect mlab db that is because my organization network has some restriction, I switched to mobile hotspot and it worked.
I needed a solution for this issue as well and I used the answers in this thread to come up with the following:
.directive('tpReport', ['$parse', '$http', '$compile', '$templateCache', function($parse, $http, $compile, $templateCache)
{
var getTemplateUrl = function(type)
{
var templateUrl = '';
switch (type)
{
case 1: // Table
templateUrl = 'modules/tpReport/directives/table-report.tpl.html';
break;
case 0:
templateUrl = 'modules/tpReport/directives/default.tpl.html';
break;
default:
templateUrl = '';
console.log("Type not defined for tpReport");
break;
}
return templateUrl;
};
var linker = function (scope, element, attrs)
{
scope.$watch('data', function(){
var templateUrl = getTemplateUrl(scope.data[0].typeID);
var data = $templateCache.get(templateUrl);
element.html(data);
$compile(element.contents())(scope);
});
};
return {
controller: 'tpReportCtrl',
template: '<div>{{data}}</div>',
// Remove all existing content of the directive.
transclude: true,
restrict: "E",
scope: {
data: '='
},
link: linker
};
}])
;
Include in your html:
<tp-report data='data'></tp-report>
This directive is used for dynamically loading report templates based on the dataset retrieved from the server.
It sets a watch on the scope.data property and whenever this gets updated (when the users requests a new dataset from the server) it loads the corresponding directive to show the data.
I my case, I had to switch from API 21 to API 19, clean and build and everything was fine again. I am using a Mac and apparently API 21 is not fully supported on Yosemite.
While its not bad practice to use break and there are many excellent uses for it, it should not be all you rely upon. Almost any use of a break can be written into the loop condition. Code is far more readable when real conditions are used, but in the case of a long-running or infinite loop, breaks make perfect sense. They also make sense when searching for data, as shown above.
All current answers provide the offset differece at current time, not at a given date.
moment(date).utcOffset()
returns the time difference in minutes between browser time and UTC at the date passed as argument (or today, if no date passed).
Here's a function to parse correct offset at the picked date:
function getUtcOffset(date) {
return moment(date)
.subtract(
moment(date).utcOffset(),
'minutes')
.utc()
}
If you are looking inside dockerfile while creating image, add this line:
RUN apk add --update yourPackageName
below code works for me, for getting text from input
return(this.webelement.getAttribute('value').then(function(text)
{
console.log("--------" + text);
}))
I know it's an older post, but i wanna add some extra informations about that.
Firstly, i think that rvm
does great BUT it wasn't updating ruby from my system (MAC OS Yosemite).
What rvm
was doing : installing to another location and setting up the path there to my environment variable ... And i was kinda bored, because i had two ruby now on my system.
So to fix that, i uninstalled the rvm
, then used the Homebrew package manager available here and installed ruby throw terminal command by doing brew install ruby
.
And then, everything was working perfectly ! The ruby from my system was updated ! Hope it will help for the next adventurers !
You need to add your files to your working copy, before you commit your changes to the repository:
svn add <file|folder>
Afterwards:
svn commit
See here for detailed information about svn add
.
TortoiseSVN
It works with TortoiseSVN, because it adds the file to your working copy automatically (commit dialog):
If you want to include an unversioned file, just check that file to add it to the commit.
It is an error about react-scripts file missing in your node_modules/
directory at the time of installation.
Check your react-script dependency is avaliable or not in package.json
.
If not available then add it manually via:
npm install react-scripts --save
IMHO, a very nice solution is to use c++11 emplace_back function:
revenue.emplace_back("string", map[i].second);
It just creates a new element in place.
Assuming Java as the implementation language then a, b, and c would all be references to type Complex with initial values of null. Also assuming that Complex is immutable as the mentioned BigInteger and similar immutable BigDecimal, I'd I think you mean the following, as you're assigning the reference to the Complex returned from adding b and c, and not comparing this reference to a.
Isn't :
Complex a, b, c; a = b + c;
much simpler than:
Complex a, b, c; a = b.add(c);
One issue is that reindex
will fail if there are duplicate values. Say we're working with timestamped data, which we want to index by date:
df = pd.DataFrame({
'timestamps': pd.to_datetime(
['2016-11-15 1:00','2016-11-16 2:00','2016-11-16 3:00','2016-11-18 4:00']),
'values':['a','b','c','d']})
df.index = pd.DatetimeIndex(df['timestamps']).floor('D')
df
yields
timestamps values
2016-11-15 "2016-11-15 01:00:00" a
2016-11-16 "2016-11-16 02:00:00" b
2016-11-16 "2016-11-16 03:00:00" c
2016-11-18 "2016-11-18 04:00:00" d
Due to the duplicate 2016-11-16
date, an attempt to reindex:
all_days = pd.date_range(df.index.min(), df.index.max(), freq='D')
df.reindex(all_days)
fails with:
...
ValueError: cannot reindex from a duplicate axis
(by this it means the index has duplicates, not that it is itself a dup)
Instead, we can use .loc
to look up entries for all dates in range:
df.loc[all_days]
yields
timestamps values
2016-11-15 "2016-11-15 01:00:00" a
2016-11-16 "2016-11-16 02:00:00" b
2016-11-16 "2016-11-16 03:00:00" c
2016-11-17 NaN NaN
2016-11-18 "2016-11-18 04:00:00" d
fillna
can be used on the column series to fill blanks if needed.
The WebSocket connection starts its life with an HTTP or HTTPS handshake. When the page is accessed through HTTP, you can use WS or WSS (WebSocket secure: WS over TLS) . However, when your page is loaded through HTTPS, you can only use WSS - browsers don't allow to "downgrade" security.
A
and B
reference the same object, so A.a
and B.a
reference the same property of the same object.
Here's a "copy" function that may do the job, it can do both shallow and deep clones. Note the caveats. It copies all enumerable properties of an object (not inherited properties), including those with falsey values (I don't understand why other approaches ignore them), it also doesn't copy non–existent properties of sparse arrays.
There is no general copy or clone function because there are many different ideas on what a copy or clone should do in every case. Most rule out host objects, or anything other than Objects or Arrays. This one also copies primitives. What should happen with functions?
So have a look at the following, it's a slightly different approach to others.
/* Only works for native objects, host objects are not
** included. Copies Objects, Arrays, Functions and primitives.
** Any other type of object (Number, String, etc.) will likely give
** unexpected results, e.g. copy(new Number(5)) ==> 0 since the value
** is stored in a non-enumerable property.
**
** Expects that objects have a properly set *constructor* property.
*/
function copy(source, deep) {
var o, prop, type;
if (typeof source != 'object' || source === null) {
// What do to with functions, throw an error?
o = source;
return o;
}
o = new source.constructor();
for (prop in source) {
if (source.hasOwnProperty(prop)) {
type = typeof source[prop];
if (deep && type == 'object' && source[prop] !== null) {
o[prop] = copy(source[prop]);
} else {
o[prop] = source[prop];
}
}
}
return o;
}
You might want to check the target of the click event that fires for the body instead of relying on stopPropagation.
Something like:
$("body").click
(
function(e)
{
if(e.target.className !== "form_wrapper")
{
$(".form_wrapper").hide();
}
}
);
Also, the body element may not include the entire visual space shown in the browser. If you notice that your clicks are not registering, you may need to add the click handler for the HTML element instead.
Whether you're using Team System Test or NUnit, the best practice is to create a separate Class Library for your tests. Simply adding an App.config to your Test project will automatically get copied to your bin folder when you compile.
If your code is reliant on specific configuration tests, the very first test I would write validates that the configuration file is available (so that I know I'm not insane) :
<configuration>
<appSettings>
<add key="TestValue" value="true" />
</appSettings>
</configuration>
And the test:
[TestFixture]
public class GeneralFixture
{
[Test]
public void VerifyAppDomainHasConfigurationSettings()
{
string value = ConfigurationManager.AppSettings["TestValue"];
Assert.IsFalse(String.IsNullOrEmpty(value), "No App.Config found.");
}
}
Ideally, you should be writing code such that your configuration objects are passed into your classes. This not only separates you from the configuration file issue, but it also allows you to write tests for different configuration scenarios.
public class MyObject
{
public void Configure(MyConfigurationObject config)
{
_enabled = config.Enabled;
}
public string Foo()
{
if (_enabled)
{
return "foo!";
}
return String.Empty;
}
private bool _enabled;
}
[TestFixture]
public class MyObjectTestFixture
{
[Test]
public void CanInitializeWithProperConfig()
{
MyConfigurationObject config = new MyConfigurationObject();
config.Enabled = true;
MyObject myObj = new MyObject();
myObj.Configure(config);
Assert.AreEqual("foo!", myObj.Foo());
}
}
This should do it
shell_exec("crontab -l | { cat; echo '*/1 * * * * command'; } |crontab -");
I use when I do a big commit, above all when I remove more files from the repository.. after, the commits are faster
python supports arbitrarily large integers naturally:
example:
>>> 10**1000
10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
You could even get, for example of a huge integer value, fib(4000000).
But still it does not (for now) supports an arbitrarily large float !!
If you need one big, large, float then check up on the decimal Module. There are examples of use on these foruns: OverflowError: (34, 'Result too large')
Another reference: http://docs.python.org/2/library/decimal.html
You can even using the gmpy module if you need a speed-up (which is likely to be of your interest): Handling big numbers in code
Another reference: https://code.google.com/p/gmpy/
try this new DecimalFormat("#.00");
update:
double angle = 20.3034;
DecimalFormat df = new DecimalFormat("#.00");
String angleFormated = df.format(angle);
System.out.println(angleFormated); //output 20.30
Your code wasn't using the decimalformat correctly
The 0 in the pattern means an obligatory digit, the # means optional digit.
update 2: check bellow answer
If you want 0.2677
formatted as 0.27
you should use new DecimalFormat("0.00");
otherwise it will be .27
Try
safeRunCommand() {
"$@"
if [ $? != 0 ]; then
printf "Error when executing command: '$1'"
exit $ERROR_CODE
fi
}
Edit: This works, but the accepted answer using Json.NET is much more straightforward. Leaving this one in case someone needs BCL-only code.
It’s not supported by the .NET framework out of the box. A glaring oversight – not everyone needs to deserialize into objects with named properties. So I ended up rolling my own:
<Serializable()> Public Class StringStringDictionary
Implements ISerializable
Public dict As System.Collections.Generic.Dictionary(Of String, String)
Public Sub New()
dict = New System.Collections.Generic.Dictionary(Of String, String)
End Sub
Protected Sub New(info As SerializationInfo, _
context As StreamingContext)
dict = New System.Collections.Generic.Dictionary(Of String, String)
For Each entry As SerializationEntry In info
dict.Add(entry.Name, DirectCast(entry.Value, String))
Next
End Sub
Public Sub GetObjectData(info As SerializationInfo, context As StreamingContext) Implements ISerializable.GetObjectData
For Each key As String in dict.Keys
info.AddValue(key, dict.Item(key))
Next
End Sub
End Class
Called with:
string MyJsonString = "{ \"key1\": \"value1\", \"key2\": \"value2\"}";
System.Runtime.Serialization.Json.DataContractJsonSerializer dcjs = new
System.Runtime.Serialization.Json.DataContractJsonSerializer(
typeof(StringStringDictionary));
System.IO.MemoryStream ms = new
System.IO.MemoryStream(Encoding.UTF8.GetBytes(MyJsonString));
StringStringDictionary myfields = (StringStringDictionary)dcjs.ReadObject(ms);
Response.Write("Value of key2: " + myfields.dict["key2"]);
Sorry for the mix of C# and VB.NET…
Actually, Settings font size affects only sizes in sp
. So all You need to do - define textSize
in dp
instead of sp
, then settings won't change text size in Your app.
Here's a link to the documentation: Dimensions
However please note that the expected behavior is that the fonts in all apps respect the user's preferences. There are many reasons a user might want to adjust the font sizes and some of them might even be medical - visually impaired users. Using dp
instead of sp
for text might lead to unwillingly discriminating against some of your app's users.
i.e:
android:textSize="32dp"
Typing brew install cmake
as you did installs cmake
. Now you can type cmake
and use it.
If typing cmake
doesn’t work make sure /usr/local/bin
is your PATH
. You can see it with echo $PATH
. If you don’t see /usr/local/bin
in it add the following to your ~/.bashrc
:
export PATH="/usr/local/bin:$PATH"
Then reload your shell session and try again.
(all the above assumes Homebrew is installed in its default location, /usr/local
. If not you’ll have to replace /usr/local
with $(brew --prefix)
in the export
line)
Use \0
.
color: green\0;
I however do recommend conditional comments since you'd like to exclude IE9 as well and it's yet unpredictable whether this hack will affect IE9 as well or not.
Regardless, I've never had the need for an IE8 specific hack. What is it, the IE8 specific problem which you'd like to solve? Is it rendering in IE8 standards mode anyway? Its renderer is pretty good.
value="<?php echo htmlspecialchars($name); ?>"
You can easily create your own extension method on IEnumerable or IQueryable:
public static IOrderedEnumerable<TSource> OrderByWithDirection<TSource,TKey>
(this IEnumerable<TSource> source,
Func<TSource, TKey> keySelector,
bool descending)
{
return descending ? source.OrderByDescending(keySelector)
: source.OrderBy(keySelector);
}
public static IOrderedQueryable<TSource> OrderByWithDirection<TSource,TKey>
(this IQueryable<TSource> source,
Expression<Func<TSource, TKey>> keySelector,
bool descending)
{
return descending ? source.OrderByDescending(keySelector)
: source.OrderBy(keySelector);
}
Yes, you lose the ability to use a query expression here - but frankly I don't think you're actually benefiting from a query expression anyway in this case. Query expressions are great for complex things, but if you're only doing a single operation it's simpler to just put that one operation:
var query = dataList.OrderByWithDirection(x => x.Property, direction);
To expand on Jon Skeets answer the code for this in .Net 4
is:
string myCommaSeperatedString = string.Join(",",ls);
According to the Go specification:
For an expression x of interface type and a type T, the primary expression x.(T) asserts that x is not nil and that the value stored in x is of type T.
A "type assertion" allows you to declare an interface value contains a certain concrete type or that its concrete type satisfies another interface.
In your example, you were asserting data (type interface{}) has the concrete type string. If you are wrong, the program will panic at runtime. You do not need to worry about efficiency, checking just requires comparing two pointer values.
If you were unsure if it was a string or not, you could test using the two return syntax.
str, ok := data.(string)
If data is not a string, ok will be false. It is then common to wrap such a statement into an if statement like so:
if str, ok := data.(string); ok {
/* act on str */
} else {
/* not string */
}
This should do it:
Ctrl+A
- select all.Ctrl+Shift+L
- split selection into lines.left/right
, select with Shift+left/right
. Move all cursors to start of line with Home
.You can also do this:
<ul id="example">
<li>First</li>
<li>Second</li>
<li>Third</li>
<li>Fourth</li>
</ul>
// possibility 1
$('#example li:last').val();
// possibility 2
$('#example').children().last()
// possibility 3
$('#example li:last-child').val();
Your storage directory may be missing, or one of its sub-directories. The storage directory must have all the sub-directories that shipped with the Laravel installation.
Use
getActivity().getApplicationContext()
to obtain the context in any fragment
In terms of comparing two numpy arrays and counting the number of matches (e.g. correct class prediction in machine learning), I found the below example for two dimensions useful:
import numpy as np
result = np.random.randint(3,size=(5,2)) # 5x2 random integer array
target = np.random.randint(3,size=(5,2)) # 5x2 random integer array
res = np.equal(result,target)
print result
print target
print np.sum(res[:,0])
print np.sum(res[:,1])
which can be extended to D dimensions.
The results are:
Prediction:
[[1 2]
[2 0]
[2 0]
[1 2]
[1 2]]
Target:
[[0 1]
[1 0]
[2 0]
[0 0]
[2 1]]
Count of correct prediction for D=1: 1
Count of correct prediction for D=2: 2
The "adjustment" in adjusted R-squared is related to the number of variables and the number of observations.
If you keep adding variables (predictors) to your model, R-squared will improve - that is, the predictors will appear to explain the variance - but some of that improvement may be due to chance alone. So adjusted R-squared tries to correct for this, by taking into account the ratio (N-1)/(N-k-1) where N = number of observations and k = number of variables (predictors).
It's probably not a concern in your case, since you have a single variate.
Some references:
IIS 7.5 and possibly newer versions have the header text stored in iiscore.dll
Using a hex editor, find the string and the word "Server" 53 65 72 76 65 72
after it and replace those with null bytes. In IIS 7.5 it looks like this:
4D 69 63 72 6F 73 6F 66 74 2D 49 49 53 2F 37 2E 35 00 00 00 53 65 72 76 65 72
Unlike some other methods this does not result in a performance penalty. The header is also removed from all requests, even internal errors.
The answer is wrong, it only works when the file does not exist. If the file exists, using the first does nothing, the second adds a line at the end of the file.
The correct answer is:
copy /b filename.ext +,,
I found it here: https://superuser.com/questions/10426/windows-equivalent-of-the-linux-command-touch/764721#764721
It looks like the latest version of anaconda forces install of pyqt5.6 over any pyqt build, which will be fatal for your applications. In a terminal, Try:
conda install -c anaconda pyqt=4.11.4
It will prompt to downgrade conda client. After that, it should be good.
UPDATE: If you want to know what pyqt versions are available for install, try:
conda search pyqt
UPDATE: The most recent version of conda installs anaconda-navigator. This depends on qt5, and should first be removed:
conda uninstall anaconda-navigator
Then install "newest" qt4:
conda install qt=4
Curly braces are always needed for accessing array elements and carrying out brace expansion.
It's good to be not over-cautious and use {}
for shell variable expansion even when there is no scope for ambiguity.
For example:
dir=log
prog=foo
path=/var/${dir}/${prog} # excessive use of {}, not needed since / can't be a part of a shell variable name
logfile=${path}/${prog}.log # same as above, . can't be a part of a shell variable name
path_copy=${path} # {} is totally unnecessary
archive=${logfile}_arch # {} is needed since _ can be a part of shell variable name
So, it is better to write the three lines as:
path=/var/$dir/$prog
logfile=$path/$prog.log
path_copy=$path
which is definitely more readable.
Since a variable name can't start with a digit, shell doesn't need {}
around numbered variables (like $1
, $2
etc.) unless such expansion is followed by a digit. That's too subtle and it does make to explicitly use {}
in such contexts:
set app # set $1 to app
fruit=$1le # sets fruit to apple, but confusing
fruit=${1}le # sets fruit to apple, makes the intention clear
See:
For substracting in moment.js:
moment().subtract(1, 'months').format('MMM YYYY');
Documentation:
http://momentjs.com/docs/#/manipulating/subtract/
Before version 2.8.0, the moment#subtract(String, Number) syntax was also supported. It has been deprecated in favor of moment#subtract(Number, String).
moment().subtract('seconds', 1); // Deprecated in 2.8.0
moment().subtract(1, 'seconds');
As of 2.12.0 when decimal values are passed for days and months, they are rounded to the nearest integer. Weeks, quarters, and years are converted to days or months, and then rounded to the nearest integer.
moment().subtract(1.5, 'months') == moment().subtract(2, 'months')
moment().subtract(.7, 'years') == moment().subtract(8, 'months') //.7*12 = 8.4, rounded to 8
This is my solution using only CSS (Jsfiddle: http://jsfiddle.net/xykPT/).
div.options > label > input {_x000D_
visibility: hidden;_x000D_
}_x000D_
_x000D_
div.options > label {_x000D_
display: block;_x000D_
margin: 0 0 0 -10px;_x000D_
padding: 0 0 20px 0; _x000D_
height: 20px;_x000D_
width: 150px;_x000D_
}_x000D_
_x000D_
div.options > label > img {_x000D_
display: inline-block;_x000D_
padding: 0px;_x000D_
height:30px;_x000D_
width:30px;_x000D_
background: none;_x000D_
}_x000D_
_x000D_
div.options > label > input:checked +img { _x000D_
background: url(http://cdn1.iconfinder.com/data/icons/onebit/PNG/onebit_34.png);_x000D_
background-repeat: no-repeat;_x000D_
background-position:center center;_x000D_
background-size:30px 30px;_x000D_
}
_x000D_
<div class="options">_x000D_
<label title="item1">_x000D_
<input type="radio" name="foo" value="0" /> _x000D_
Item 1_x000D_
<img />_x000D_
</label>_x000D_
<label title="item2">_x000D_
<input type="radio" name="foo" value="1" />_x000D_
Item 2_x000D_
<img />_x000D_
</label> _x000D_
<label title="item3">_x000D_
<input type="radio" name="foo" value="2" />_x000D_
Item 3_x000D_
<img />_x000D_
</label>_x000D_
</div>
_x000D_
Project Euler is mentioned in the tags and many of the problems in it require checking numbers >> 2^64
. Most of the optimizations mentioned above don't work easily when you are working with an 80 byte buffer.
I used java BigInteger and a slightly modified version of Newton's method, one that works better with integers. The problem was that exact squares n^2
converged to (n-1)
instead of n
because n^2-1 = (n-1)(n+1)
and the final error was just one step below the final divisor and the algorithm terminated. It was easy to fix by adding one to the original argument before computing the error. (Add two for cube roots, etc.)
One nice attribute of this algorithm is that you can immediately tell if the number is a perfect square - the final error (not correction) in Newton's method will be zero. A simple modification also lets you quickly calculate floor(sqrt(x))
instead of the closest integer. This is handy with several Euler problems.
Note that as of Microsoft SQL Server 2016, UTF-8 is supported by bcp
, BULK_INSERT
, and OPENROWSET
.
Addendum 2016-12-21: SQL Server 2016 SP1 now enables Unicode Compression (and most other previously Enterprise-only features) for all versions of MS SQL including Standard and Express. This is not the same as UTF-8 support, but it yields a similar benefit if the goal is disk space reduction for Western alphabets.
To get the entire contents of a file:
$content = [IO.File]::ReadAllText(".\test.txt")
Number of lines:
([IO.File]::ReadAllLines(".\test.txt")).length
or
(gc .\test.ps1).length
Sort of hackish to include trailing empty line:
[io.file]::ReadAllText(".\desktop\git-python\test.ps1").split("`n").count
selector is used for applying multiple alternate drawables for different status of the view, so in this case, there is no need for selector
instead use shape
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#ffffff" />
<stroke android:width="1dip" android:color="#ff9900" />
</shape>
I had the same issue.For me the problem was how to configure a cache limit to images.And i came across this site which gave some insights to the procedure on how the issue can be handled.Hope it will be helpful for you too Link:[https://varvy.com/pagespeed/cache-control.html]
This will work:
select * into DestinationDatabase.dbo.[TableName1] from (
Select * from sourceDatabase.dbo.[TableName1])Temp
To Alan Bellows answer: !(e.altKey) added for users who use AltGr when typing (e.g Poland). Without this pressing AltGr+S will give same result as Ctrl+S
$(document).keydown(function(e) {
if ((e.which == '115' || e.which == '83' ) && (e.ctrlKey || e.metaKey) && !(e.altKey))
{
e.preventDefault();
alert("Ctrl-s pressed");
return false;
}
return true; });
Android has all the tools you need to parse json built-in. Example follows, no need for GSON or anything like that.
Get your JSON:
Assume you have a json string
String result = "{\"someKey\":\"someValue\"}";
Create a JSONObject:
JSONObject jObject = new JSONObject(result);
If your json string is an array, e.g.:
String result = "[{\"someKey\":\"someValue\"}]"
then you should use JSONArray
as demonstrated below and not JSONObject
To get a specific string
String aJsonString = jObject.getString("STRINGNAME");
To get a specific boolean
boolean aJsonBoolean = jObject.getBoolean("BOOLEANNAME");
To get a specific integer
int aJsonInteger = jObject.getInt("INTEGERNAME");
To get a specific long
long aJsonLong = jObject.getLong("LONGNAME");
To get a specific double
double aJsonDouble = jObject.getDouble("DOUBLENAME");
To get a specific JSONArray:
JSONArray jArray = jObject.getJSONArray("ARRAYNAME");
To get the items from the array
for (int i=0; i < jArray.length(); i++)
{
try {
JSONObject oneObject = jArray.getJSONObject(i);
// Pulling items from the array
String oneObjectsItem = oneObject.getString("STRINGNAMEinTHEarray");
String oneObjectsItem2 = oneObject.getString("anotherSTRINGNAMEINtheARRAY");
} catch (JSONException e) {
// Oops
}
}
For Laravel 5.5 and probably 5.4
In App\Http\Middleware\RedirectIfAuthenticated change redirect('/home')
to redirect()->intended('/home')
in the handle function:
public function handle($request, Closure $next, $guard = null)
{
if (Auth::guard($guard)->check()) {
return redirect()->intended('/home');
}
return $next($request);
}
in App\Http\Controllers\Auth\LoginController create the showLoginForm()
function as follows:
public function showLoginForm()
{
if(!session()->has('url.intended'))
{
session(['url.intended' => url()->previous()]);
}
return view('auth.login');
}
This way if there was an intent for another page it will redirect there otherwise it will redirect home.
If you want to use a file:
ClassPathResource classPathResource = new ClassPathResource("static/something.txt");
InputStream inputStream = classPathResource.getInputStream();
File somethingFile = File.createTempFile("test", ".txt");
try {
FileUtils.copyInputStreamToFile(inputStream, somethingFile);
} finally {
IOUtils.closeQuietly(inputStream);
}
I don't care if the page reloads or displays the results immediately;
Good!
Note: If you don't want to refresh the page see "Ok... but how do I Use Ajax anyway?" below.
I just want to have a button on my website make a PHP file run.
That can be done with a form with a single button:
<form action="">
<input type="submit" value="my button"/>
</form>
That's it.
Pretty much. Also note that there are cases where ajax is really the way to go.
That depends on what you want. In general terms you only need ajax when you want to avoid realoading the page. Still you have said that you don't care about that.
If I can write the code inside HTML just fine, why can't I just reference the file for it in there or make a simple call for it in Javascript?
Because the PHP code is not in the HTML just fine
. That's an illusion created by the way most server side scripting languages works (including PHP, JSP, and ASP). That code only exists on the server, and it is no reachable form the client (the browser) without a remote call of some sort.
You can see evidence of this if you ask your browser to show the source code of the page. There you will not see the PHP code, that is because the PHP code is not send to the client, therefore it cannot be executed from the client. That's why you need to do a remote call to be able to have the client trigger the execution of PHP code.
If you don't use a form (as shown above) you can do that remote call from JavaScript with a little thing called Ajax. You may also want to consider if what you want to do in PHP can be done directly in JavaScript.
Use a form to do the call. You can have it to direct the user to a particlar file:
<form action="myphpfile.php">
<input type="submit" value="click on me!">
</form>
The user will end up in the page myphpfile.php
. To make it work for the current page, set action to an empty string (which is what I did in the example I gave you early).
I just want to link it to a PHP file that will create the permanent blog post on the server so that when I reload the page, the post is still there.
You want to make an operation on the server, you should make your form have the fields you need (even if type="hidden"
and use POST
):
<form action="" method="POST">
<input type="text" value="default value, you can edit it" name="myfield">
<input type="submit" value = "post">
</form>
What do I need to know about it to call a PHP file that will create a text file on a button press?
see: How to write into a file in PHP.
I'm glad you ask... Since you are a newb begginer, I'll give you a little template you can follow:
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
//Ok we got a POST, probably from a FORM, read from $_POST.
var_dump($_PSOT); //Use this to see what info we got!
}
else
{
//You could assume you got a GET
var_dump($_GET); //Use this to see what info we got!
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta char-set="utf-8">
<title>Page title</title>
</head>
<body>
<form action="" method="POST">
<input type="text" value="default value, you can edit it" name="myfield">
<input type="submit" value = "post">
</form>
</body>
</html>
Note: you can remove var_dump
, it is just for debugging purposes.
I know the next stage, you will be asking how to:
There is a single answer for that: Sessions.
I'll give a more extensive template for Post-Redirect-Get
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
var_dump($_PSOT);
//Do stuff...
//Write results to session
session_start();
$_SESSION['stuff'] = $something;
//You can store stuff such as the user ID, so you can remeember him.
//redirect:
header('Location: ', true, 303);
//The redirection will cause the browser to request with GET
//The results of the operation are in the session variable
//It has empty location because we are redirecting to the same page
//Otherwise use `header('Location: anotherpage.php', true, 303);`
exit();
}
else
{
//You could assume you got a GET
var_dump($_GET); //Use this to see what info we got!
//Get stuff from session
session_start();
if (array_key_exists('stuff', $_SESSION))
{
$something = $_SESSION['stuff'];
//we got stuff
//later use present the results of the operation to the user.
}
//clear stuff from session:
unset($_SESSION['stuff']);
//set headers
header('Content-Type: text/html; charset=utf-8');
//This header is telling the browser what are we sending.
//And it says we are sending HTML in UTF-8 encoding
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta char-set="utf-8">
<title>Page title</title>
</head>
<body>
<?php if (isset($something)){ echo '<span>'.$something.'</span>'}?>;
<form action="" method="POST">
<input type="text" value="default value, you can edit it" name="myfield">
<input type="submit" value = "post">
</form>
</body>
</html>
Please look at php.net for any function call you don't recognize. Also - if you don't have already - get a good tutorial on HTML5.
Also, use UTF-8 because UTF-8!
Notes:
I'm making a simple blog site for myself and I've got the code for the site and the javascript that can take the post I write in a textarea and display it immediately.
If are you using a CMS (Codepress, Joomla, Drupal... etc)? That make put some contraints on how you got to do things.
Also, if you are using a framework, you should look at their documentation or ask at their forum/mailing list/discussion page/contact or try to ask the authors.
Well... Ajax is made easy by some JavaScript libraries. Since you are a begginer, I'll recomend jQuery.
So, let's send something to the server via Ajax with jQuery, I'll use $.post instead of $.ajax for this example.
<?php
if ($_SERVER['REQUEST_METHOD'] === 'POST')
{
var_dump($_PSOT);
header('Location: ', true, 303);
exit();
}
else
{
var_dump($_GET);
header('Content-Type: text/html; charset=utf-8');
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta char-set="utf-8">
<title>Page title</title>
<script>
function ajaxmagic()
{
$.post( //call the server
"test.php", //At this url
{
field: "value",
name: "John"
} //And send this data to it
).done( //And when it's done
function(data)
{
$('#fromAjax').html(data); //Update here with the response
}
);
}
</script>
</head>
<body>
<input type="button" value = "use ajax", onclick="ajaxmagic()">
<span id="fromAjax"></span>
</body>
</html>
The above code will send a POST request to the page test.php
.
Note: You can mix sessions
with ajax
and stuff if you want.
... for these or any other, please make another questions. That's too much for this one.
The duplicate values in any column can be deleted with a simple for loop.
Sub remove()
Dim a As Long
For a = Cells(Rows.Count, 1).End(xlUp).Row To 1 Step -1
If WorksheetFunction.CountIf(Range("A1:A" & a), Cells(a, 1)) > 1 Then Rows(a).Delete
Next
End Sub
check your casing, the name is typically stored in upper case
SELECT * FROM all_source WHERE name = 'DAILY_UPDATE' ORDER BY TYPE, LINE;
List<ProjectResources> list = new List<ProjectResources>();
IList<ProjectResources> obj = `Your Data Will Be Here`;
list = obj.ToList<ProjectResources>();
This Would Convert IList Object to List Object.