useEffect has its own state/lifecycle, it will not update until you pass a function in parameters or effect destroyed.
object and array spread or rest will not work inside useEffect.
React.useEffect(() => {
console.log("effect");
(async () => {
try {
let result = await fetch("/query/countries");
const res = await result.json();
let result1 = await fetch("/query/projects");
const res1 = await result1.json();
let result11 = await fetch("/query/regions");
const res11 = await result11.json();
setData({
countries: res,
projects: res1,
regions: res11
});
} catch {}
})(data)
}, [setData])
# or use this
useEffect(() => {
(async () => {
try {
await Promise.all([
fetch("/query/countries").then((response) => response.json()),
fetch("/query/projects").then((response) => response.json()),
fetch("/query/regions").then((response) => response.json())
]).then(([country, project, region]) => {
// console.log(country, project, region);
setData({
countries: country,
projects: project,
regions: region
});
})
} catch {
console.log("data fetch error")
}
})()
}, [setData]);
Boolean is the object wrapper class for the primitive boolean. This class, as any class, can indeed be null. For performance and memory reasons it is always best to use the primitive.
The wrapper classes in the Java API serve two primary purposes:
./gradlew
Your directory with gradlew is not included in the PATH, so you must specify path to the gradlew. .
means "current directory".
There is no better way but since it's an operation you usually do quite often, you'd better automatize the process.
Most frameworks offer a way to make arguments parsing an easy task. You can build you own object for that. Quick and dirty example :
class Request
{
// This is the spirit but you may want to make that cleaner :-)
function get($key, $default=null, $from=null)
{
if ($from) :
if (isset(${'_'.$from}[$key]));
return sanitize(${'_'.strtoupper($from)}[$key]); // didn't test that but it should work
else
if isset($_REQUEST[$key])
return sanitize($_REQUEST[$key]);
return $default;
}
// basics. Enforce it with filters according to your needs
function sanitize($data)
{
return addslashes(trim($data));
}
// your rules here
function isEmptyString($data)
{
return (trim($data) === "" or $data === null);
}
function exists($key) {}
function setFlash($name, $value) {}
[...]
}
$request = new Request();
$question= $request->get('question', '', 'post');
print $request->isEmptyString($question);
Symfony use that kind of sugar massively.
But you are talking about more than that, with your "// Handle error here ". You are mixing 2 jobs : getting the data and processing it. This is not the same at all.
There are other mechanisms you can use to validate data. Again, frameworks can show you best pratices.
Create objects that represent the data of your form, then attach processses and fall back to it. It sounds far more work that hacking a quick PHP script (and it is the first time), but it's reusable, flexible, and much less error prone since form validation with usual PHP tends to quickly become spaguetti code.
In my case, it was due to Same Origin policies. To explain it further, MDN states the following:
If the iframe and the iframe's parent document are Same Origin, returns a Document (that is, the active document in the inline frame's nested browsing context), else returns null.
Ben Nadel has written a good article about this, he points out the difference in the parameters to these functions:
String.slice( begin [, end ] )
String.substring( from [, to ] )
String.substr( start [, length ] )
He also points out that if the parameters to slice are negative, they reference the string from the end. Substring and substr doesn't.
Here is his article about this.
The sessions parameter is derived from the processes parameter and changes accordingly when you change the number of max processes. See the Oracle docs for further info.
To get only the info about the sessions:
select current_utilization, limit_value
from v$resource_limit
where resource_name='sessions';
CURRENT_UTILIZATION LIMIT_VALUE ------------------- ----------- 110 792
Try this to show info about both:
select resource_name, current_utilization, max_utilization, limit_value
from v$resource_limit
where resource_name in ('sessions', 'processes');
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION LIMIT_VALUE ------------- ------------------- --------------- ----------- processes 96 309 500 sessions 104 323 792
I've seen the same thing and tried all the suggestions above without success. Here are steps that resolve it for me: - turn off wifi - npm start (this should work) - turn on wifi
I'm not exactly sure what the root issue is but that resolved it for me.
I had similar issues and below is how i fixed it:
press f10
key to select or open BIOS Settings.Virtual Technology-x
option under Device Configuration SettingsTry this bit:
input type="button"
data-bind="css:{on:toggleButton, off:toggleButton!=true},value:toggleButton,click: function() { $data.toggleButton(!($data.toggleButton()))}" />
in viewModel
self.toggleButton = ko.observable(false);
Another option using factories
export class A {
id: number;
date: Date;
bId: number;
readonly b: B;
}
export class B {
id: number;
}
export class AFactory {
constructor(
private readonly createB: BFactory
) { }
create(data: any): A {
const createB = this.createB.create;
return Object.assign(new A(),
data,
{
get b(): B {
return createB({ id: data.bId });
},
date: new Date(data.date)
});
}
}
export class BFactory {
create(data: any): B {
return Object.assign(new B(), data);
}
}
https://github.com/MrAntix/ts-deserialize
use like this
import { A, B, AFactory, BFactory } from "./deserialize";
// create a factory, simplified by DI
const aFactory = new AFactory(new BFactory());
// get an anon js object like you'd get from the http call
const data = { bId: 1, date: '2017-1-1' };
// create a real model from the anon js object
const a = aFactory.create(data);
// confirm instances e.g. dates are Dates
console.log('a.date is instanceof Date', a.date instanceof Date);
console.log('a.b is instanceof B', a.b instanceof B);
Open a command prompt as an Administrator.
Enter slmgr /upk
and wait for this to complete. This will uninstall the current product key from Windows and put it into an unlicensed state.
Enter slmgr /cpky
and wait for this to complete. This will remove the product key from the registry if it's still there.
Enter slmgr /rearm
and wait for this to complete. This is to reset the Windows activation timers so the new users will be prompted to activate Windows when they put in the key.
This should put the system back to a pre-key state.
Hope this helps you out!
Need to pull both branch data on your local drive first.
What is happening is your trying to cherry-pick from branch-a to branch-b, where in you are currently on branch-b, but the local copy of branch-a is not updated yet (you need to perform a git pull on both branches first).
steps:
- git checkout branch-a
- git pull origin branch-a
- git checkout branch-b
- git pull origin branch-b
- git cherry-pick <hash>
output:
[branch-b <hash>] log data
Author: Author <Author
1 file changed, 1 insertion(+), 3 deletions(-)
I am working behind a proxy and just installed SASS by downloading directly from http://rubygems.org.
I then ran sudo gem install [path/to/downloaded/gem/file]
. I cannot say this will work for all gems, but it may help some people.
Use System.Diagnostics.Process.Start()
method.
Check out this article on how to use it.
Process.Start("notepad", "readme.txt");
string winpath = Environment.GetEnvironmentVariable("windir");
string path = System.IO.Path.GetDirectoryName(
System.Windows.Forms.Application.ExecutablePath);
Process.Start(winpath + @"\Microsoft.NET\Framework\v1.0.3705\Installutil.exe",
path + "\\MyService.exe");
Note the ""
at the beginning and at the end!
Run a program and pass a Long Filename
cmd /c write.exe "c:\sample documents\sample.txt"
Spaces in Program Path
cmd /c ""c:\Program Files\Microsoft Office\Office\Winword.exe""
Spaces in Program Path + parameters
cmd /c ""c:\Program Files\demo.cmd"" Parameter1 Param2
Spaces in Program Path + parameters with spaces
cmd /k ""c:\batch files\demo.cmd" "Parameter 1 with space" "Parameter2 with space""
Launch Demo1 and then Launch Demo2
cmd /c ""c:\Program Files\demo1.cmd" & "c:\Program Files\demo2.cmd""
Without a doubt, the simplest method uses an invisible FORM element in HTML specifying the desired REST method. Then the arguments can be inserted into input type=hidden
value fields using JavaScript and the form can be submitted from the button click event listener or onclick event using one line of JavaScript. Here is an example that assumes the REST API is in file REST.php:
<body>
<h2>REST-test</h2>
<input type=button onclick="document.getElementById('a').submit();"
value="Do It">
<form id=a action="REST.php" method=post>
<input type=hidden name="arg" value="val">
</form>
</body>
Note that this example will replace the page with the output from page REST.php. I'm not sure how to modify this if you wish the API to be called with no visible effect on the current page. But it's certainly simple.
I'm not a regex guru by any means. But try:
<[A-Z0-9][A-Z0-9]+>
< start of word
[A-Z0-9] one character
[A-Z0-9]+ and one or more of them
> end of word
I won't try for the bonus points of the whole upper case sentence. hehe
I don't know if this still is an issue, but i prefere just to use the My.Settings in my code.
Visual Studio generates a simple class with functions for reading settings from the app.config file.
You can simply access it using My.Settings.ConnectionString.
Using Context As New Data.Context.DataClasses()
Context.Connection.ConnectionString = My.Settings.ConnectionString
End Using
Most likely the socket is held by some process. Use netstat -o
to find which one.
1.
Find out where Git thinks 'origin/master' is usinggit-remote
git remote show origin
..which will return something like..
* remote origin
URL: [email protected]:~/something.git
Remote branch merged with 'git pull' while on branch master
master
Tracked remote branch
master
A remote is basically a link to a remote repository. When you do..
git remote add unfuddle [email protected]/myrepo.git
git push unfuddle
..git will push changes to that address you added. It's like a bookmark, for remote repositories.
When you run git status
, it checks if the remote is missing commits (compared to your local repository), and if so, by how many commits. If you push all your changes to "origin", both will be in sync, so you wont get that message.
2.
If it's somewhere else, how do I turn my laptop into the 'origin/master'?
There is no point in doing this. Say "origin" is renamed to "laptop" - you never want to do git push laptop
from your laptop.
If you want to remove the origin remote, you do..
git remote rm origin
This wont delete anything (in terms of file-content/revisions-history). This will stop the "your branch is ahead by.." message, as it will no longer compare your repository with the remote (because it's gone!)
One thing to remember is that there is nothing special about origin
, it's just a default name git uses.
Git does use origin
by default when you do things like git push
or git pull
. So, if you have a remote you use a lot (Unfuddle, in your case), I would recommend adding unfuddle as "origin":
git remote rm origin
git remote add origin [email protected]:subdomain/abbreviation.git
or do the above in one command using set-url:
git remote set-url origin [email protected]:subdomain/abbreviation.git
Then you can simply do git push
or git pull
to update, instead of git push unfuddle master
If they all have the same extension (for example .jpg), you can use this:
for picture in *.jpg ; do
echo "the next file is $picture"
done
(This solution also works if the filename has spaces)
Flow chart describes the program (see old fortran flow charts - surely, there are some floating around on google).
Data flow diagram determines the flow of data, for example, between subroutines, or between different programs.
At least on the current maven version you need to add the switch -DreResolve=false if you intend to remove the dependencies from your local repo without re-downloading them.
mvn dependency:purge-local-repository -DreResolve=false
removes the dependencies without downloading them again.
The assembly coming with Powershell SDK (C:\Program Files\Reference Assemblies\Microsoft\WindowsPowerShell\v1.0) does not come with Powershell 2 specific types.
Manually editing the csproj file solved my problem.
You can plot the means without resorting to external calculations and additional tables using stat_summary(...)
. In fact, stat_summary(...)
was designed for exactly what you are doing.
library(ggplot2)
library(reshape2) # for melt(...)
gg <- melt(df,id="gender") # df is your original table
ggplot(gg, aes(x=variable, y=value, fill=factor(gender))) +
stat_summary(fun.y=mean, geom="bar",position=position_dodge(1)) +
scale_color_discrete("Gender")
stat_summary(fun.ymin=min,fun.ymax=max,geom="errorbar",
color="grey80",position=position_dodge(1), width=.2)
To add "error bars" you cna also use stat_summary(...)
(here, I'm using the min and max value rather than sd because you have so little data).
ggplot(gg, aes(x=variable, y=value, fill=factor(gender))) +
stat_summary(fun.y=mean, geom="bar",position=position_dodge(1)) +
stat_summary(fun.ymin=min,fun.ymax=max,geom="errorbar",
color="grey40",position=position_dodge(1), width=.2) +
scale_fill_discrete("Gender")
If anyone is looking for the angular version of this answer then I would suggest creating a directive would be a great idea.
NOTE: ngx-bootstrap is used.
import { Directive, Host, Self, Optional, Input, Renderer2, OnInit, ElementRef } from '@angular/core';
import { CarouselComponent } from 'ngx-bootstrap/carousel';
@Directive({
selector: '[appCarouselSwipe]'
})
export class AppCarouselSwipeDirective implements OnInit {
@Input() swipeThreshold = 50;
private start: number;
private stillMoving: boolean;
private moveListener: Function;
constructor(
@Host() @Self() @Optional() private carousel: CarouselComponent,
private renderer: Renderer2,
private element: ElementRef
) {
}
ngOnInit(): void {
if ('ontouchstart' in document.documentElement) {
this.renderer.listen(this.element.nativeElement, 'touchstart', this.onTouchStart.bind(this));
this.renderer.listen(this.element.nativeElement, 'touchend', this.onTouchEnd.bind(this));
}
}
private onTouchStart(e: TouchEvent): void {
if (e.touches.length === 1) {
this.start = e.touches[0].pageX;
this.stillMoving = true;
this.moveListener = this.renderer.listen(this.element.nativeElement, 'touchmove', this.onTouchMove.bind(this));
}
}
private onTouchMove(e: TouchEvent): void {
if (this.stillMoving) {
const x = e.touches[0].pageX;
const difference = this.start - x;
if (Math.abs(difference) >= this.swipeThreshold) {
this.cancelTouch();
if (difference > 0) {
if (this.carousel.activeSlide < this.carousel.slides.length - 1) {
this.carousel.activeSlide = this.carousel.activeSlide + 1;
}
} else {
if (this.carousel.activeSlide > 0) {
this.carousel.activeSlide = this.carousel.activeSlide - 1;
}
}
}
}
}
private onTouchEnd(e: TouchEvent): void {
this.cancelTouch();
}
private cancelTouch() {
if (this.moveListener) {
this.moveListener();
this.moveListener = undefined;
}
this.start = null;
this.stillMoving = false;
}
}
in html:
<carousel appCarouselSwipe>
...
</carousel>
I think that error from Nginx is indicating that the connection was closed by your nodejs server (i.e., "upstream"). How is nodejs configured?
remove href
attribute:
<a id="" onclick="f1()">jhhghj</a>
if link styles are important then:
<a href="javascript:void(f1())">jhhghj</a>
I achieved this in Bootstrap 3 with the following code:
.modal-dialog {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
.modal-content {
height: auto;
min-height: 100%;
border-radius: 0;
}
In general, when you have questions about spacing / padding issues, try right+clicking (or cmd+clicking on mac) the element and select "inspect element" on Chrome or "inspect element with firebug" on Firefox. Try selecting different HTML elements in the "elements" panel and editing the CSS on the right in real-time until you get the padding / spacing you want.
It works perfect if you do File>Open... and then select pom.xml file. Be sure to change the dropdown at the top-left of the sidebar that says "Android" to "Project" to see all your files. Also I think it helps if the folder your pom.xml file is in a folder called "app/".
Disclaimer: My java project was generated by Google App Engine.
The first line of a paragraph is indented by default, thus whether or not you have \indent
there won't make a difference. \indent
and \noindent
can be used to override default behavior. You can see this by replacing your line with the following:
Now we are engaged in a great civil war.\\
\indent this is indented\\
this isn't indented
\noindent override default indentation (not indented)\\
asdf
M.Ali's answer could be modified as
select Cast(Cast((37.0/38.0)*100 as decimal(18,2)) as varchar(5)) + ' %' as Percentage
The Parcelable interface is a good way to pass an object with an Intent.
How can I make my custom objects Parcelable? is a pretty good answer on how to use Parcelable
The official google docs also include an example
To change the font size, you don't need to know a lot of html for this. Open the html output with notepad ++. Control F search for "font-size". You should see a section with font sizes for the headers (h1, h2, h3,...).
Add the following somewhere in this section.
body {
font-size: 16px;
}
The font size above is 16 pt font. You can change the number to whatever you want.
A little extension on the answer of jsbueno:
#!/usr/bin/env python
import cairo
import rsvg
from xml.dom import minidom
def convert_svg_to_png(svg_file, output_file):
# Get the svg files content
with open(svg_file) as f:
svg_data = f.read()
# Get the width / height inside of the SVG
doc = minidom.parse(svg_file)
width = int([path.getAttribute('width') for path
in doc.getElementsByTagName('svg')][0])
height = int([path.getAttribute('height') for path
in doc.getElementsByTagName('svg')][0])
doc.unlink()
# create the png
img = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
ctx = cairo.Context(img)
handler = rsvg.Handle(None, str(svg_data))
handler.render_cairo(ctx)
img.write_to_png(output_file)
if __name__ == '__main__':
from argparse import ArgumentParser
parser = ArgumentParser()
parser.add_argument("-f", "--file", dest="svg_file",
help="SVG input file", metavar="FILE")
parser.add_argument("-o", "--output", dest="output", default="svg.png",
help="PNG output file", metavar="FILE")
args = parser.parse_args()
convert_svg_to_png(args.svg_file, args.output)
df.groupby(['Fruit','Name'])['Number'].sum()
You can select different columns to sum numbers.
In this case, you are thinking of the String comparing function "String".equals("some_text")
. Chars do not need to use this function. Instead a standard ==
comparison operator will suffice.
private static int countNumChars(String s) {
for(char c : s.toCharArray()){
if (c == ' ') // your resulting outcome
}
}
you can stop using the shutdown.bat inside tomcat installation directory. Or you may click "stop" button at the servers view of eclipse. To get to the view select Window - Show View - Servers
I use the following code to create PDF
protected void CreatePDF(Stream stream)
{
using (var document = new Document(PageSize.A4, 40, 40, 40, 30))
{
var writer = PdfWriter.GetInstance(document, stream);
writer.PageEvent = new ITextEvents();
document.Open();
// instantiate custom tag processor and add to `HtmlPipelineContext`.
var tagProcessorFactory = Tags.GetHtmlTagProcessorFactory();
tagProcessorFactory.AddProcessor(
new TableProcessor(),
new string[] { HTML.Tag.TABLE }
);
//Register Fonts.
XMLWorkerFontProvider fontProvider = new XMLWorkerFontProvider(XMLWorkerFontProvider.DONTLOOKFORFONTS);
fontProvider.Register(HttpContext.Current.Server.MapPath("~/Content/Fonts/GothamRounded-Medium.ttf"), "Gotham Rounded Medium");
CssAppliers cssAppliers = new CssAppliersImpl(fontProvider);
var htmlPipelineContext = new HtmlPipelineContext(cssAppliers);
htmlPipelineContext.SetTagFactory(tagProcessorFactory);
var pdfWriterPipeline = new PdfWriterPipeline(document, writer);
var htmlPipeline = new HtmlPipeline(htmlPipelineContext, pdfWriterPipeline);
// get an ICssResolver and add the custom CSS
var cssResolver = XMLWorkerHelper.GetInstance().GetDefaultCssResolver(true);
cssResolver.AddCss(CSSSource, "utf-8", true);
var cssResolverPipeline = new CssResolverPipeline(
cssResolver, htmlPipeline
);
var worker = new XMLWorker(cssResolverPipeline, true);
var parser = new XMLParser(worker);
using (var stringReader = new StringReader(HTMLSource))
{
parser.Parse(stringReader);
document.Close();
HttpContext.Current.Response.ContentType = "application /pdf";
if (base.View)
HttpContext.Current.Response.AddHeader("content-disposition", "inline;filename=\"" + OutputFileName + ".pdf\"");
else
HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=\"" + OutputFileName + ".pdf\"");
HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
HttpContext.Current.Response.WriteFile(OutputPath);
HttpContext.Current.Response.End();
}
}
}
Cast the Boolean to an integer and sum.
SELECT count(*),sum(myCol::int);
You get 6,3
.
It looks like you're confused by the working of slices and the string storage format, which is different from what you have in C.
len
operation : there is no need to count1
after slicing by adding an empty string.To remove the last char (if it's a one byte char), simply do
inputFmt:=input[:len(input)-1]
From the git-diff
manpage:
git diff [--options] <commit> <commit> [--] [<path>...]
For instance, to see the difference for a file "main.c" between now and two commits back, here are three equivalent commands:
$ git diff HEAD^^ HEAD main.c
$ git diff HEAD^^..HEAD -- main.c
$ git diff HEAD~2 HEAD -- main.c
I had the same problem when installing spaCy module. And I checked control panel I have several visual C++ redistributables installed already.
What I did was select "Microsoft Visual Studio Community 2015" which is already installed on my PC --> "Modify" -->check "Common Tools for Visual C++ 2015". Then it will take some time and download more than 1 GB to install it.
This fixed my issue. Now I have spaCy installed.
I use this, and it works well for me:
TYPE \\Server\Share\Folder\*.csv >> C:\Folder\ConcatenatedFile.csv
Of course, before every run, you have to DELETE C:\Folder\ConcatenatedFile.csv
The only issue is that if all files have headers, then it will be repeated in all files.
The easiest way to do this is with type casting.
return <MyClass>{ Field1: "ASD", Field2: "QWE" };
You can generate a stack trace and use the informations in the StackTraceElements.
For example an utility class can return you the calling class name :
public class KDebug {
public static String getCallerClassName() {
StackTraceElement[] stElements = Thread.currentThread().getStackTrace();
for (int i=1; i<stElements.length; i++) {
StackTraceElement ste = stElements[i];
if (!ste.getClassName().equals(KDebug.class.getName()) && ste.getClassName().indexOf("java.lang.Thread")!=0) {
return ste.getClassName();
}
}
return null;
}
}
If you call KDebug.getCallerClassName()
from bar()
, you'll get "foo"
.
Now supposing you want to know the class of the method calling bar
(which is more interesting and maybe what you really wanted). You could use this method :
public static String getCallerCallerClassName() {
StackTraceElement[] stElements = Thread.currentThread().getStackTrace();
String callerClassName = null;
for (int i=1; i<stElements.length; i++) {
StackTraceElement ste = stElements[i];
if (!ste.getClassName().equals(KDebug.class.getName())&& ste.getClassName().indexOf("java.lang.Thread")!=0) {
if (callerClassName==null) {
callerClassName = ste.getClassName();
} else if (!callerClassName.equals(ste.getClassName())) {
return ste.getClassName();
}
}
}
return null;
}
Is that for debugging ? If not, there may be a better solution to your problem.
import json
row = [1L,[0.1,0.2],[[1234L,1],[134L,2]]]
row_json = json.dumps(row)
Make sure that your self-signed certificate matches your site URL. If it does not, you will continue to get a certificate error even after explicitly trusting the certificate in Internet Explorer 8 (I don't have Internet Explorer 7, but Firefox will trust the certificate regardless of a URL mismatch).
If this is the problem, the red "Certificate Error" box in Internet Explorer 8 will show "Mismatched Address" as the error after you add your certificate. Also, "View Certificates" has an Issued to: label which shows what URL the certificate is valid against.
The unambiguous way to write this is (i.e. increase the 2nd date by 1 and make it <
)
select *
from xxx
where dates >= '20121026'
and dates < '20121028'
If you're using SQL Server 2008 or above, you can safety CAST as DATE while retaining SARGability, e.g.
select *
from xxx
where CAST(dates as DATE) between '20121026' and '20121027'
This explicitly tells SQL Server that you are only interested in the DATE portion of the dates
column for comparison against the BETWEEN range.
The answer of Uttam didnt work for me. I just got null when I do:
Bitmap bitmap = BitmapFactory.decodeByteArray(bitmapdata, 0, bitmapdata.length);
In my case, bitmapdata only has the buffer of the pixels, so it is imposible for the function decodeByteArray to guess which the width, the height and the color bits use. So I tried this and it worked:
//Create bitmap with width, height, and 4 bytes color (RGBA)
Bitmap bmp = Bitmap.createBitmap(imageWidth, imageHeight, Bitmap.Config.ARGB_8888);
ByteBuffer buffer = ByteBuffer.wrap(bitmapdata);
bmp.copyPixelsFromBuffer(buffer);
Check https://developer.android.com/reference/android/graphics/Bitmap.Config.html for different color options
If you're using Java 9, there's an easy way with less number of lines without needing to initialize or add
method.
List<String> list = List.of("first", "second", "third");
You need to use JNI.
First of all use create a .dll using visual studio, that call system("cls"). After that use JNI to use this DDL.
I found this article that is nice:
http://www.planet-source-code.com/vb/scripts/ShowCode.asp?txtCodeId=5170&lngWId=2
I returned to a system after a while, and even though it had Node 12.x, there was no npx
or even npm
available. I had installed Node via nvm
, so I removed it, reinstalled it and then installed the latest Node LTS. This got me both npm
and npx
.
basically hidden fields will be more useful and advantages to use with multi step form. we can use hidden fields to pass one step information to next step using hidden and keep it forwarding till the end step.
Cross-site request forgery is a very common website vulnerability. Requiring a secret, user-specific token in all form submissions will prevent CSRF attacks since attack sites cannot guess what the proper token is and any form submissions they perform on the behalf of the user will always fail.
If you need to store what step in a multi-page form the user is currently on, use hidden input fields. The user doesn't need to see this information, so hide it in a hidden input field.
General rule: Use the field to store anything that the user doesn't need to see, but that you want to send to the server on form submission.
Thought I would give Sugar.js a mention. It has a truncate method that is pretty smart.
From the documentation:
Truncates a string. Unless split is true, truncate will not split words up, and instead discard the word where the truncation occurred.
Example:
'just sittin on the dock of the bay'.truncate(20)
Output:
just sitting on...
In xml edittext
:
android:id="@+id/text"
In program:
EditText text=(EditText) findViewById(R.id.text);
text.setRawInputType(Configuration.KEYBOARDHIDDEN_YES);
Here's how you'd do it if you were using C++ TR1.
As Douglas Leeder said you need a separate process for timeout to signal to. Workaround by exporting function to subshells and running subshell manually.
export -f echoFooBar
timeout 10s bash -c echoFooBar
How big is m?
You could do something like:
create table two select null foo union all select null;
create temporary table seq ( foo int primary key auto_increment ) auto_increment=9 select a.foo from two a, two b, two c, two d;
select * from seq where foo <= 23;
where the auto_increment is set to n and the where clause compares to m and the number of times the two table is repeated is at least ceil(log(m-n+1)/log(2)).
(The non-temporary two table could be omitted by replacing two with (select null foo union all select null) in the create temporary table seq.)
Web Developers use javascript:void(0)
because it is the easiest way to prevent the default behavior of a
tag. void(*anything*)
returns undefined
and it is a falsy value. and returning a falsy value is like return false
in onclick
event of a
tag that prevents its default behavior.
So I think javascript:void(0)
is the simplest way to prevent the default behavior of a
tag.
If you're working in a virtual environment (virtualenv), you'll definitely need to update the python.lintint.pylintPath
setting (and probably the python.pythonPath
setting, as well, if you haven't already) if you want linting to work, like this:
// File "settings.json" (workspace-specific one is probably best)
{
// ...
"python.linting.pylintPath": "C:/myproject/venv/Scripts/pylint.exe",
"python.pythonPath": "C:/myproject/venv/Scripts/python.exe",
// ...
}
That's for Windows, but other OSs are similar. The .exe
extension was necessary for it to work for me on Windows, even though it's not required when actually running it in the console.
If you just want to disable it, then use the python.linting.pylintEnabled": false
setting as mentioned in Ben Delaney's answer.
Interesting observation using Java 11 and switching off loop unrolling with the following VM option:
-XX:LoopUnrollLimit=0
The loop with the 2 * (i * i)
expression results in more compact native code1:
L0001: add eax,r11d
inc r8d
mov r11d,r8d
imul r11d,r8d
shl r11d,1h
cmp r8d,r10d
jl L0001
in comparison with the 2 * i * i
version:
L0001: add eax,r11d
mov r11d,r8d
shl r11d,1h
add r11d,2h
inc r8d
imul r11d,r8d
cmp r8d,r10d
jl L0001
Java version:
java version "11" 2018-09-25
Java(TM) SE Runtime Environment 18.9 (build 11+28)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11+28, mixed mode)
Benchmark results:
Benchmark (size) Mode Cnt Score Error Units
LoopTest.fast 1000000000 avgt 5 694,868 ± 36,470 ms/op
LoopTest.slow 1000000000 avgt 5 769,840 ± 135,006 ms/op
Benchmark source code:
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.MILLISECONDS)
@Warmup(iterations = 5, time = 5, timeUnit = TimeUnit.SECONDS)
@Measurement(iterations = 5, time = 5, timeUnit = TimeUnit.SECONDS)
@State(Scope.Thread)
@Fork(1)
public class LoopTest {
@Param("1000000000") private int size;
public static void main(String[] args) throws RunnerException {
Options opt = new OptionsBuilder()
.include(LoopTest.class.getSimpleName())
.jvmArgs("-XX:LoopUnrollLimit=0")
.build();
new Runner(opt).run();
}
@Benchmark
public int slow() {
int n = 0;
for (int i = 0; i < size; i++)
n += 2 * i * i;
return n;
}
@Benchmark
public int fast() {
int n = 0;
for (int i = 0; i < size; i++)
n += 2 * (i * i);
return n;
}
}
1 - VM options used: -XX:+UnlockDiagnosticVMOptions -XX:+PrintAssembly -XX:LoopUnrollLimit=0
This works perfect for me
{
test: /\.(js|jsx)$/,
loader: 'babel-loader',
exclude: /node_modules/,
query: {
presets: ['es2015','react']
}
},
I wrote a bash script that looks at the type of a file then copies it to a location, I use it to look through the videos I've watched online from my firefox cache:
#!/bin/bash
# flvcache script
CACHE=~/.mozilla/firefox/xxxxxxxx.default/Cache
OUTPUTDIR=~/Videos/flvs
MINFILESIZE=2M
for f in `find $CACHE -size +$MINFILESIZE`
do
a=$(file $f | cut -f2 -d ' ')
o=$(basename $f)
if [ "$a" = "Macromedia" ]
then
cp "$f" "$OUTPUTDIR/$o"
fi
done
nautilus "$OUTPUTDIR"&
It uses similar ideas to those presented here, hope this is helpful to someone.
I have the same problem.then I create a new project and the path only use English alphabet,the problem is resolved.
I ended up using (note the '.log' filename and the single quotes around 'myfilename_'):
<rollingStyle value="Date" />
<datePattern value="'myfilename_'yyyy-MM-dd"/>
<preserveLogFileNameExtension value="true" />
<staticLogFileName value="false" />
<file type="log4net.Util.PatternString" value="c:\\Logs\\.log" />
This gives me:
myfilename_2015-09-22.log
myfilename_2015-09-23.log
.
.
I had this error when I tried to update npm, but had a really old version (1.3.6 !) installed from yum in AWS Linux. I was able to manually install a newer npm version and everything was remedied.
Add the code snippet in JS file used in master page or used globally.
<script language="javascript">
if (typeof browseris !== 'undefined') {
browseris.ie = false;
}
</script>
For more information refer blog: http://blogs2share.blogspot.in/2016/11/object-doesnt-support-property-or.html
My phone is xiaomi Redmi note 8 with MIUI 11.0.9 . There is no option for create hyperlink :
So I use Telegram desktop or Telegram X for create hyperlink because Telegram X supports markdown. Type url and send message (in Telegram X) or there is an alternate way which is the easiest!
Select the text using Xiaomi's Word Editor and click in the three dots on the top right corner of the chat. It is usually used for accessing settings but if you select a text and click there, you can see Telegram's own Formatter!
Try BeanComparator from Apache Commons.
import org.apache.commons.beanutils.BeanComparator;
BeanComparator fieldComparator = new BeanComparator("fruitName");
Collections.sort(fruits, fieldComparator);
I see this being possible using either some regex, or a few substr calls (assuming the input is always of that format, and doesn't change length etc.)
something like
$in = "+11234567890"; $output = substr($in,2,3)."-".substr($in,6,3)."-".substr($in,10,4);
should do it.
Check "Getting a list of all subdirectories in the current directory".
Here's a Python 3 version:
import os
dir_list = next(os.walk('.'))[1]
print(dir_list)
there are two way:
First :
Inside your CD
of SQL Server 2012
you can go to this path \redist\VisualStudioShell
.
And you most install this file VS10sp1-KB983509.msp
.
After several minutes your problem fix.
Restart your computer and then fire SetUp
of SQL Server 2012
.
See this picture.
Secound :
But if you want download online Service Pack 1
view This Link
And press download.
After download run this exe file and let it download and fix your VS2010 to VS2010 SP1.
And then restart your windows.
After this operation you can install SQL Server 2012
I'm surprised nobody has mentioned the -exec argument to find, which is intended for this type of use-case, although it will start a process for each matching file name:
find . -type f -name 'xa*' -exec sed -i 's/asd/dsg/g' {} \;
Alternatively, one could use xargs, which will invoke fewer processes:
find . -type f -name 'xa*' | xargs sed -i 's/asd/dsg/g'
Or more simply use the +
exec variant instead of ;
in find to allow find to provide more than one file per subprocess call:
find . -type f -name 'xa*' -exec sed -i 's/asd/dsg/g' {} +
NO NEED FOR DUMMY IN CODE
Just :
add a Reference to the Executeable Project
or/and ensure that the reference in the executeable project has "Copy Local"
set to TRUE
(which was my "fault") is seems that this "overwrote" the setting in the base referenced library-project...
I think you set the marquee width related to 5 images total width. It works fine
ex: <marquee style="width:700px"></marquee>
Switch to Branch2
git checkout Branch2
Apply the current (Branch2) changes on top of the Branch1 changes, staying in Branch2:
git rebase Branch1
Which would leave you with the desired result in Branch2:
a -- b -- c <-- Master
\
d -- e <-- Branch1
\
d -- e -- f' -- g' <-- Branch2
You can delete Branch1.
One of the way is Using below sql queries
--Size of All Table Space
--1. Used Space
SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS "USED SPACE(IN GB)" FROM USER_SEGMENTS GROUP BY TABLESPACE_NAME
--2. Free Space
SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS "FREE SPACE(IN GB)" FROM USER_FREE_SPACE GROUP BY TABLESPACE_NAME
--3. Both Free & Used
SELECT USED.TABLESPACE_NAME, USED.USED_BYTES AS "USED SPACE(IN GB)", FREE.FREE_BYTES AS "FREE SPACE(IN GB)"
FROM
(SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS USED_BYTES FROM USER_SEGMENTS GROUP BY TABLESPACE_NAME) USED
INNER JOIN
(SELECT TABLESPACE_NAME,TO_CHAR(SUM(NVL(BYTES,0))/1024/1024/1024, '99,999,990.99') AS FREE_BYTES FROM USER_FREE_SPACE GROUP BY TABLESPACE_NAME) FREE
ON (USED.TABLESPACE_NAME = FREE.TABLESPACE_NAME);
Just omit the [Required] attribute from the string somefield
property. This will make it create a NULL
able column in the db.
To make int types allow NULLs in the database, they must be declared as nullable ints in the model:
// an int can never be null, so it will be created as NOT NULL in db
public int someintfield { get; set; }
// to have a nullable int, you need to declare it as an int?
// or as a System.Nullable<int>
public int? somenullableintfield { get; set; }
public System.Nullable<int> someothernullableintfield { get; set; }
Use Css Selector for this, or learn more about Css Selector just go here
https://www.w3schools.com/cssref/css_selectors.asp
#main_text > .title {
/* Style goes here */
}
#main_text .title {
/* Style goes here */
}
The easiest way to do it is to use the End
method, which is gives you the cell that you reach by pressing the end key and then a direction when you're on a cell (in this case B6). This won't give you what you expect if B6 or B7 is empty, though.
Dim start_cell As Range
Set start_cell = Range("[Workbook1.xlsx]Sheet1!B6")
Range(start_cell, start_cell.End(xlDown)).Copy Range("[Workbook2.xlsx]Sheet1!A2")
If you can't use End
, then you would have to use a loop.
Dim start_cell As Range, end_cell As Range
Set start_cell = Range("[Workbook1.xlsx]Sheet1!B6")
Set end_cell = start_cell
Do Until IsEmpty(end_cell.Offset(1, 0))
Set end_cell = end_cell.Offset(1, 0)
Loop
Range(start_cell, end_cell).Copy Range("[Workbook2.xlsx]Sheet1!A2")
Your quotes are in the wrong spot. Here's a simple example:
<div style={{backgroundColor: "#FF0000"}}>red</div>
As a summary, I would describe the wider impact of the repository pattern. It allows all of your code to use objects without having to know how the objects are persisted. All of the knowledge of persistence, including mapping from tables to objects, is safely contained in the repository.
Very often, you will find SQL queries scattered in the codebase and when you come to add a column to a table you have to search code files to try and find usages of a table. The impact of the change is far-reaching.
With the repository pattern, you would only need to change one object and one repository. The impact is very small.
Perhaps it would help to think about why you would use the repository pattern. Here are some reasons:
You have a single place to make changes to your data access
You have a single place responsible for a set of tables (usually)
It is easy to replace a repository with a fake implementation for testing - so you don't need to have a database available to your unit tests
There are other benefits too, for example, if you were using MySQL and wanted to switch to SQL Server - but I have never actually seen this in practice!
You can also use join:
yourstring = ''.join(('L','yourstring','LL'))
Result:
>>> yourstring
'LyourstringLL'
Here's another couple of scss mixins.
These mixins assume that you are not going to use js plugins like Isotope (they don't respect html markup order, thus messing up with css nth rules).
Also, you will be able to take full advantage of them especially if you're writing your responsive breakpoints in a mobile first manner. You ideally will use flexbox_grid() on the smaller breakpoint and flexbox_cell() on the following breakpoints. flexbox_cell() will take care of resetting previously setted margins no longer used on larger breakpoints.
And by the way, as long as you correctly setup your container's flex properties, you can also use only flexbox_cell() on the items, if you need to.
Here's the code:
// apply to the container (for ex. <UL> element)
@mixin flexbox_grid($columns, $gutter_width){
display: flex;
flex-direction:row;
flex-wrap:wrap;
justify-content: flex-start;
> *{
@include flexbox_cell($columns, $gutter_width);
}
}
// apply to the cell (for ex. a <LI> element)
@mixin flexbox_cell($columns, $gutter_width){
$base_width: 100 / $columns;
$gutters: $columns - 1;
$gutter_offset: $gutter_width * $gutters / $columns;
flex-grow: 0;
flex-shrink: 1;
flex-basis: auto; // IE10 doesn't support calc() here
box-sizing:border-box; // so you can freely apply borders/paddings to items
width: calc( #{$base_width}% - #{$gutter_offset} );
// remove useless margins (for cascading breakponts)
&:nth-child(#{$columns}n){
margin-right: 0;
}
// apply margin
@for $i from 0 through ($gutters){
@if($i != 0){
&:nth-child(#{$columns}n+#{$i}){
margin-right: $gutter_width;
}
}
}
}
Usage:
ul{
// just this:
@include flexbox_grid(3,20px);
}
// and maybe in following breakpoints,
// where the container is already setted up,
// just change only the cells:
li{
@include flexbox_cell(4,40px);
}
Obviously, it's up to you to eventually set container's padding/margin/width and cell's bottom margins and the like.
Hope it helps!
There could be a global variable, likely set with argparse
from sys.argv
, that stands for whether the program should be verbose or not.
Then a decorator could be written such that if verbosity was on, then the standard input would be diverted into the null device as long as the function were to run:
import os
from contextlib import redirect_stdout
verbose = False
def louder(f):
def loud_f(*args, **kwargs):
if not verbose:
with open(os.devnull, 'w') as void:
with redirect_stdout(void):
return f(*args, **kwargs)
return f(*args, **kwargs)
return loud_f
@louder
def foo(s):
print(s*3)
foo("bar")
This answer is inspired by this code; actually, I was going to just use it as a module in my program, but I got errors I couldn't understand, so I adapted a portion of it.
The downside of this solution is that verbosity is binary, unlike with logging
, which allows for finer-tuning of how verbose the program can be.
Also, all print
calls are diverted, which might be unwanted for.
I find I occasionally need to explicitly kill and restart the server manually:
adb kill-server
adb start-server
This shock is generally enough to get it back on its feet again, and prevents repeated adb server is out of date. killing...
messages.
Use this code (taken from css-tricks) that will work on all browser
overflow-wrap: break-word;
word-wrap: break-word;
-ms-word-break: break-all;
/* This is the dangerous one in WebKit, as it breaks things wherever */
word-break: break-all;
/* Instead use this non-standard one: */
word-break: break-word;
/* Adds a hyphen where the word breaks, if supported (No Blink) */
-ms-hyphens: auto;
-moz-hyphens: auto;
-webkit-hyphens: auto;
hyphens: auto;
There are two ways I can think of to make this happen in a reusable way. One is to rename all of your columns with a prefix for the table they have come from. I have seen this many times, but I really don't like it. I find that it's redundant, causes a lot of typing, and you can always use aliases when you need to cover the case of a column name having an unclear origin.
The other way, which I would recommend you do in your situation if you are committed to seeing this through, is to create views for each table that alias the table names. Then you join against those views, rather than the tables. That way, you are free to use * if you wish, free to use the original tables with original column names if you wish, and it also makes writing any subsequent queries easier because you have already done the renaming work in the views.
Finally, I am not clear why you need to know which table each of the columns came from. Does this matter? Ultimately what matters is the data they contain. Whether UserID came from the User table or the UserQuestion table doesn't really matter. It matters, of course, when you need to update it, but at that point you should already know your schema well enough to determine that.
Please try CURRENT_TIME()
or now()
functions
"INSERT INTO contactinfo (name, email, subject, date, comments)
VALUES ('$name', '$email', '$subject', NOW(), '$comments')"
OR
"INSERT INTO contactinfo (name, email, subject, date, comments)
VALUES ('$name', '$email', '$subject', CURRENT_TIME(), '$comments')"
OR you could try with PHP date
function here:
$date = date("Y-m-d H:i:s");
You're almost there. As you can see, the onItemSelected
will give you a position
parameter, you can use this to retrieve the object from your adapter, as in getItemAtPosition(position)
.
Example:
spinner.setOnItemSelectedListener(this);
...
public void onItemSelected(AdapterView<?> parent, View view, int pos,long id) {
Toast.makeText(parent.getContext(),
"OnItemSelectedListener : " + parent.getItemAtPosition(pos).toString(),
Toast.LENGTH_SHORT).show();
}
This will put a message on screen, with the selected item printed by its toString() method.
There's a ton of answers now, but I found using height: 100vh;
to work on the div element that needs to fill up the entire vertical space available.
In this way, I do not need to play around with display or positioning. This came in handy when using Bootstrap to make a dashboard wherein I had a sidebar and a main. I wanted the main to stretch and fill the entire vertical space so that I could apply a background colour.
div {
height: 100vh;
}
Supports IE9 and up: click to see the link
best explanation of Cohesion comes from Uncle Bob's Clean Code:
Classes should have a small number of instance variables. Each of the methods of a class should manipulate one or more of those variables. In general the more variables a method manipulates the more cohesive that method is to its class. A class in which each variable is used by each method is maximally cohesive.
In general it is neither advisable nor possible to create such maximally cohesive classes; on the other hand, we would like cohesion to be high. When cohesion is high, it means that the methods and variables of the class are co-dependent and hang together as a logical whole.
The strategy of keeping functions small and keeping parameter lists short can sometimes lead to a proliferation of instance variables that are used by a subset of methods. When this happens, it almost always means that there is at least one other class trying to get out of the larger class. You should try to separate the variables and methods into two or more classes such that the new classes are more cohesive.
Let's break down your examples one by one.
@media (max-width:632px)
This one is saying for a window with a max-width
of 632px that you want to apply these styles. At that size you would be talking about anything smaller than a desktop screen in most cases.
@media screen and (max-width:632px)
This one is saying for a device with a screen
and a window with max-width
of 632px apply the style. This is almost identical to the above except you are specifying screen
as opposed to the other available media types the most common other one being print
.
@media only screen and (max-width:632px)
Here is a quote straight from W3C to explain this one.
The keyword ‘only’ can also be used to hide style sheets from older user agents. User agents must process media queries starting with ‘only’ as if the ‘only’ keyword was not present.
As there is no such media type as "only", the style sheet should be ignored by older browsers.
Here's the link to that quote that is shown in example 9 on that page.
Hopefully this sheds some light on media queries.
EDIT:
Be sure to check out @hybrids excellent answer on how the only
keyword is really handled.
Many folks, including myself, need an xor
function that behaves like an n-input xor circuit, where n is variable. (See https://en.wikipedia.org/wiki/XOR_gate). The following simple function implements this.
def xor(*args):
"""
This function accepts an arbitrary number of input arguments, returning True
if and only if bool() evaluates to True for an odd number of the input arguments.
"""
return bool(sum(map(bool,args)) % 2)
Sample I/O follows:
In [1]: xor(False, True)
Out[1]: True
In [2]: xor(True, True)
Out[2]: False
In [3]: xor(True, True, True)
Out[3]: True
$articles =DB::table('articles')
->join('categories','articles.id', '=', 'categories.id')
->join('user', 'articles.user_id', '=', 'user.id')
->select('articles.id','articles.title','articles.body','user.user_name', 'categories.category_name')
->get();
return view('myarticlesview',['articles'=>$articles]);
You can use dropzone.js if you want to use simple and easy upload manager with resizing before upload functions.
It has builtin resize functions, but you can provide your own if you want.
Usage of final keyword in method calls.
For example why does the method test in below code does not give any compile error despite using final qualifier for the method parameter.
class Name {
private String name;
public Name (String s) {
this.name = s;
}
public void setName(String s) {
this.name = s;
}
}
private void test (final Name n) {
n.setName("test");
}
Add:
fastcgi_buffers 16 16k;
fastcgi_buffer_size 32k;
proxy_buffer_size 128k;
proxy_buffers 4 256k;
proxy_busy_buffers_size 256k;
To server{} in nginx.conf
Works for me.
Here is a one-liner for ignoring the tar exit status if it is 1. There is no need to set +e
as in sandeep's script. If the tar exit status is 0 or 1, this one-liner will return with exit status 0. Otherwise it will return with exit status 1. This is different from sandeep's script where the original exit status value is preserved if it is different from 1.
tar -czf sample.tar.gz dir1 dir2 || [[ $? -eq 1 ]]
You could try to set title to null.
This worked for me.
error('This is the ',null,1000)
Suppose we have table the table 'Student' with 2 columns:
student_id int
student_name varchar
Records:
+------------+---------------------+
| student_id | student_name |
+------------+---------------------+
| 101 | usman |
| 101 | usman |
| 101 | usman |
| 102 | usmanyaqoob |
| 103 | muhammadusmanyaqoob |
| 103 | muhammadusmanyaqoob |
+------------+---------------------+
Now we want to see duplicate records Use this query:
select student_name,student_id ,count(*) c from student group by student_id,student_name having c>1;
+---------------------+------------+---+
| student_name | student_id | c |
+---------------------+------------+---+
| usman | 101 | 3 |
| muhammadusmanyaqoob | 103 | 2 |
+---------------------+------------+---+
Just check for some preference with default value indicating that it's a first run. So if you get default value, do your initialization and set this preference to different value to indicate that the app is initialized already.
Yes in Notepad++ you can do that!
Some hotkeys regarding comments:
Source: shortcutworld.com from the Comment / uncomment section.
On the link you will find many other useful shortcuts too.
select one.*, two.meal
from table1 as one
left join table2 as two
on (one.weddingtable = two.weddingtable and one.tableseat = two.tableseat)
It turns out that my understanding of the error message was wrong. I'd say it features very poor choice of words. Googling around shown me someone else misunderstood the message exactly like I did - see PHP bug #66763.
After totally unhelpful "This is the way the RMs wanted it to be." response to that bug by Mike, Tyrael explains that setting it to "-1" doesn't make just the warning to go away. It does the right thing, i.e. it completely disables populating the culprit variable. Turns out that having it set to 0 STILL populates data under some circumstances. Talk about bad design! To cite PHP RFC:
Change always_populate_raw_post_data INI setting to accept three values instead of two.
- -1: The behavior of master; don't ever populate $GLOBALS[HTTP_RAW_POST_DATA]
- 0/off/whatever: BC behavior (populate if content-type is not registered or request method is other than POST)
- 1/on/yes/true: BC behavior (always populate $GLOBALS[HTTP_RAW_POST_DATA])
So yeah, setting it to -1 not only avoids the warning, like the message said, but it also finally disables populating this variable, which is what I wanted.
An alternative to the many solutions already provided is making use of the glob **
. When you use bash
with the option globstar
(shopt -s globstar
) or you make use of zsh
, you can just use the glob **
for this.
**/bar
does a recursive directory search for files named bar
(potentially including the file bar
in the current directory). Remark that this cannot be combined with other forms of globbing within the same path segment; in that case, the *
operators revert to their usual effect.
Note that there is a subtle difference between zsh
and bash
here. While bash
will traverse soft-links to directories, zsh
will not. For this you have to use the glob ***/
in zsh
.
Only such dialog is FileDialog. Its part of WinForms, but its actually only wrapper around WinAPI standard OS file dialog. And I don't think it is ugly, its actually part of OS, so it looks like OS it is run on.
Other way, there is nothing to help you with. You either need to look for 3rd party implementation, either free (and I don't think there are any good) or paid.
The problem is that in IE (which is what I presume you're testing in), the <iframe>
element has a document
property that refers to the document containing the iframe, and this is getting used before the contentDocument
or contentWindow.document
properties. What you need is:
function GetDoc(x) {
return x.contentDocument || x.contentWindow.document;
}
Also, document.all
is not available in all browsers and is non-standard. Use document.getElementById()
instead.
Maybe you are trying to set it in Apache's php.ini
, but your CLI (Command Line Interface) php.ini
is not good.
Find your php.ini
file with the following command:
php -i | grep php.ini
And then search for date.timezone
and set it to "Europe/Amsterdam"
. all valid timezone will be found here http://php.net/manual/en/timezones.php
Another way (if the other does not work), search for the file AppKernel.php
, which should be under the folder app
of your Symfony project directory. Overwrite the __construct
function below in the class AppKernel
:
<?php
class AppKernel extends Kernel
{
// Other methods and variables
// Append this init function below
public function __construct($environment, $debug)
{
date_default_timezone_set( 'Europe/Paris' );
parent::__construct($environment, $debug);
}
}
The same issue with 7.1
apt-get install php7.1-json
sudo nano /etc/php/7.1/mods-available/json.ini
This is super simple with format
:
>>> a = "John"
>>> "{:<15}".format(a)
'John '
You have to put \ before an apostrophe. Like this \' , Also check that you are editing strings.xml and not values.xml (android studio directs you to this file when shows the error). Because if you edit values.xml and try to compile again, the error persists. This was happening to me recently.
Timer.Elapsed
expects method of specific signature (with arguments object
and EventArgs
). If you want to use your PlayMusicEvent
method with additional argument evaluated during event registration, you can use lambda expression as an adapter:
myTimer.Elapsed += new ElapsedEventHandler((sender, e) => PlayMusicEvent(sender, e, musicNote));
Edit: you can also use shorter version:
myTimer.Elapsed += (sender, e) => PlayMusicEvent(sender, e, musicNote);
You can create your own extension method to do this:
public static bool Contains(this string source, string toCheck, StringComparison comp)
{
return source != null && toCheck != null && source.IndexOf(toCheck, comp) >= 0;
}
And then call:
mystring.Contains(myStringToCheck, StringComparison.OrdinalIgnoreCase);
Same problem with the 'script' plugin in the Atom editor, which is an old version of node, not having btoa(), nor atob(), nor does it support the Buffer datatype. Following code does the trick:
var Base64 = new function() {_x000D_
var keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="_x000D_
this.encode = function(input) {_x000D_
var output = "";_x000D_
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;_x000D_
var i = 0;_x000D_
input = Base64._utf8_encode(input);_x000D_
while (i < input.length) {_x000D_
chr1 = input.charCodeAt(i++);_x000D_
chr2 = input.charCodeAt(i++);_x000D_
chr3 = input.charCodeAt(i++);_x000D_
enc1 = chr1 >> 2;_x000D_
enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);_x000D_
enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);_x000D_
enc4 = chr3 & 63;_x000D_
if (isNaN(chr2)) {_x000D_
enc3 = enc4 = 64;_x000D_
} else if (isNaN(chr3)) {_x000D_
enc4 = 64;_x000D_
}_x000D_
output = output + keyStr.charAt(enc1) + keyStr.charAt(enc2) + keyStr.charAt(enc3) + keyStr.charAt(enc4);_x000D_
}_x000D_
return output;_x000D_
}_x000D_
_x000D_
this.decode = function(input) {_x000D_
var output = "";_x000D_
var chr1, chr2, chr3;_x000D_
var enc1, enc2, enc3, enc4;_x000D_
var i = 0;_x000D_
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");_x000D_
while (i < input.length) {_x000D_
enc1 = keyStr.indexOf(input.charAt(i++));_x000D_
enc2 = keyStr.indexOf(input.charAt(i++));_x000D_
enc3 = keyStr.indexOf(input.charAt(i++));_x000D_
enc4 = keyStr.indexOf(input.charAt(i++));_x000D_
chr1 = (enc1 << 2) | (enc2 >> 4);_x000D_
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);_x000D_
chr3 = ((enc3 & 3) << 6) | enc4;_x000D_
output = output + String.fromCharCode(chr1);_x000D_
if (enc3 != 64) {_x000D_
output = output + String.fromCharCode(chr2);_x000D_
}_x000D_
if (enc4 != 64) {_x000D_
output = output + String.fromCharCode(chr3);_x000D_
}_x000D_
}_x000D_
output = Base64._utf8_decode(output);_x000D_
return output;_x000D_
}_x000D_
_x000D_
this._utf8_encode = function(string) {_x000D_
string = string.replace(/\r\n/g, "\n");_x000D_
var utftext = "";_x000D_
for (var n = 0; n < string.length; n++) {_x000D_
var c = string.charCodeAt(n);_x000D_
if (c < 128) {_x000D_
utftext += String.fromCharCode(c);_x000D_
} else if ((c > 127) && (c < 2048)) {_x000D_
utftext += String.fromCharCode((c >> 6) | 192);_x000D_
utftext += String.fromCharCode((c & 63) | 128);_x000D_
} else {_x000D_
utftext += String.fromCharCode((c >> 12) | 224);_x000D_
utftext += String.fromCharCode(((c >> 6) & 63) | 128);_x000D_
utftext += String.fromCharCode((c & 63) | 128);_x000D_
}_x000D_
}_x000D_
return utftext;_x000D_
}_x000D_
_x000D_
this._utf8_decode = function(utftext) {_x000D_
var string = "";_x000D_
var i = 0;_x000D_
var c = 0,_x000D_
c1 = 0,_x000D_
c2 = 0,_x000D_
c3 = 0;_x000D_
while (i < utftext.length) {_x000D_
c = utftext.charCodeAt(i);_x000D_
if (c < 128) {_x000D_
string += String.fromCharCode(c);_x000D_
i++;_x000D_
} else if ((c > 191) && (c < 224)) {_x000D_
c2 = utftext.charCodeAt(i + 1);_x000D_
string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));_x000D_
i += 2;_x000D_
} else {_x000D_
c2 = utftext.charCodeAt(i + 1);_x000D_
c3 = utftext.charCodeAt(i + 2);_x000D_
string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));_x000D_
i += 3;_x000D_
}_x000D_
}_x000D_
return string;_x000D_
}_x000D_
}()_x000D_
_x000D_
var btoa = Base64.encode;_x000D_
var atob = Base64.decode;_x000D_
_x000D_
console.log("btoa('A') = " + btoa('A'));_x000D_
console.log("btoa('QQ==') = " + atob('QQ=='));_x000D_
console.log("btoa('B') = " + btoa('B'));_x000D_
console.log("btoa('Qg==') = " + atob('Qg=='));
_x000D_
A minor update to this: a sender should never set the Return-Path:
header. There's no such thing as a Return-Path:
header for a message in transit. That header is set by the MTA that makes final delivery, and is generally set to the value of the 5321.From
unless the local system needs some kind of quirky routing.
It's a common misunderstanding because users rarely see an email without a Return-Path:
header in their mailboxes. This is because they always see delivered messages, but an MTA should never see a Return-Path:
header on a message in transit. See http://tools.ietf.org/html/rfc5321#section-4.4
CONVERT(DateTime, ExpireDate, 121) AS ExpireDate
will do what is needed, result:
2012-04-24 00:00:00.000
see NSURLError.h Define
NSURLErrorUnknown = -1,
NSURLErrorCancelled = -999,
NSURLErrorBadURL = -1000,
NSURLErrorTimedOut = -1001,
NSURLErrorUnsupportedURL = -1002,
NSURLErrorCannotFindHost = -1003,
NSURLErrorCannotConnectToHost = -1004,
NSURLErrorNetworkConnectionLost = -1005,
NSURLErrorDNSLookupFailed = -1006,
NSURLErrorHTTPTooManyRedirects = -1007,
NSURLErrorResourceUnavailable = -1008,
NSURLErrorNotConnectedToInternet = -1009,
NSURLErrorRedirectToNonExistentLocation = -1010,
NSURLErrorBadServerResponse = -1011,
NSURLErrorUserCancelledAuthentication = -1012,
NSURLErrorUserAuthenticationRequired = -1013,
NSURLErrorZeroByteResource = -1014,
NSURLErrorCannotDecodeRawData = -1015,
NSURLErrorCannotDecodeContentData = -1016,
NSURLErrorCannotParseResponse = -1017,
NSURLErrorAppTransportSecurityRequiresSecureConnection NS_ENUM_AVAILABLE(10_11, 9_0) = -1022,
NSURLErrorFileDoesNotExist = -1100,
NSURLErrorFileIsDirectory = -1101,
NSURLErrorNoPermissionsToReadFile = -1102,
NSURLErrorDataLengthExceedsMaximum NS_ENUM_AVAILABLE(10_5, 2_0) = -1103,
// SSL errors
NSURLErrorSecureConnectionFailed = -1200,
NSURLErrorServerCertificateHasBadDate = -1201,
NSURLErrorServerCertificateUntrusted = -1202,
NSURLErrorServerCertificateHasUnknownRoot = -1203,
NSURLErrorServerCertificateNotYetValid = -1204,
NSURLErrorClientCertificateRejected = -1205,
NSURLErrorClientCertificateRequired = -1206,
NSURLErrorCannotLoadFromNetwork = -2000,
// Download and file I/O errors
NSURLErrorCannotCreateFile = -3000,
NSURLErrorCannotOpenFile = -3001,
NSURLErrorCannotCloseFile = -3002,
NSURLErrorCannotWriteToFile = -3003,
NSURLErrorCannotRemoveFile = -3004,
NSURLErrorCannotMoveFile = -3005,
NSURLErrorDownloadDecodingFailedMidStream = -3006,
NSURLErrorDownloadDecodingFailedToComplete =-3007,
NSURLErrorInternationalRoamingOff NS_ENUM_AVAILABLE(10_7, 3_0) = -1018,
NSURLErrorCallIsActive NS_ENUM_AVAILABLE(10_7, 3_0) = -1019,
NSURLErrorDataNotAllowed NS_ENUM_AVAILABLE(10_7, 3_0) = -1020,
NSURLErrorRequestBodyStreamExhausted NS_ENUM_AVAILABLE(10_7, 3_0) = -1021,
NSURLErrorBackgroundSessionRequiresSharedContainer NS_ENUM_AVAILABLE(10_10, 8_0) = -995,
NSURLErrorBackgroundSessionInUseByAnotherProcess NS_ENUM_AVAILABLE(10_10, 8_0) = -996,
NSURLErrorBackgroundSessionWasDisconnected NS_ENUM_AVAILABLE(10_10, 8_0)= -997,
You can do all that by using just one RelativeLayout
(which, btw, don't need android:orientation
parameter). So, instead of having a LinearLayout
, containing a bunch of stuff, you can do something like:
<RelativeLayout>
<ImageButton
android:layout_width="wrap_content"
android:id="@+id/the_first_one"
android:layout_alignParentLeft="true"/>
<ImageButton
android:layout_width="wrap_content"
android:layout_toRightOf="@+id/the_first_one"/>
<ImageButton
android:layout_width="wrap_content"
android:layout_alignParentRight="true"/>
</RelativeLayout>
As you noticed, there are some XML parameters missing. I was just showing the basic parameters you had to put. You can complete the rest.
I did it many times. To bypass the JavaScript warning, I add two parens:
if ((result = get_something())) { }
You should avoid it, if you really want to use it, write a comment above it saying what you are doing.
I have been using the ArrayListAdapter to dynamically put in the entries into the respective fields ; This can be useful , for future queries
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)item.getMenuInfo();
And then , you can fetch any arraylist item as below :
arrayListName(info.position);
just simply use list.pop()
now if you want it the other way use : list.popleft()
arange
generates lists (well, numpy arrays); type help(np.arange)
for the details. You don't need to call it on existing lists.
>>> x = [1,2,3,4]
>>> y = [3,5,7,9]
>>>
>>> m,b = np.polyfit(x, y, 1)
>>> m
2.0000000000000009
>>> b
0.99999999999999833
I should add that I tend to use poly1d
here rather than write out "m*x+b" and the higher-order equivalents, so my version of your code would look something like this:
import numpy as np
import matplotlib.pyplot as plt
x = [1,2,3,4]
y = [3,5,7,10] # 10, not 9, so the fit isn't perfect
coef = np.polyfit(x,y,1)
poly1d_fn = np.poly1d(coef)
# poly1d_fn is now a function which takes in x and returns an estimate for y
plt.plot(x,y, 'yo', x, poly1d_fn(x), '--k')
plt.xlim(0, 5)
plt.ylim(0, 12)
What is a unique index?
A unique index on a column is an index on that column that also enforces the constraint that you cannot have two equal values in that column in two different rows. Example:
CREATE TABLE table1 (foo int, bar int); CREATE UNIQUE INDEX ux_table1_foo ON table1(foo); -- Create unique index on foo. INSERT INTO table1 (foo, bar) VALUES (1, 2); -- OK INSERT INTO table1 (foo, bar) VALUES (2, 2); -- OK INSERT INTO table1 (foo, bar) VALUES (3, 1); -- OK INSERT INTO table1 (foo, bar) VALUES (1, 4); -- Fails! Duplicate entry '1' for key 'ux_table1_foo'
The last insert fails because it violates the unique index on column foo
when it tries to insert the value 1 into this column for a second time.
In MySQL a unique constraint allows multiple NULLs.
It is possible to make a unique index on mutiple columns.
Primary key versus unique index
Things that are the same:
Things that are different:
<!-- index.php -->
<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
</head>
<body>
<form id="myForm">
<input type="text" name="fname" id="fname"/>
<input type="submit" name="click" value="button" />
</form>
<script>
$(document).ready(function(){
$(function(){
$("#myForm").submit(function(event){
event.preventDefault();
$.ajax({
method: 'POST',
url: 'submit.php',
dataType: "json",
contentType: "application/json",
data : $('#myForm').serialize(),
success: function(data){
alert(data);
},
error: function(xhr, desc, err){
console.log(err);
}
});
});
});
});
</script>
</body>
</html>
<!-- submit.php -->
<?php
$value ="call";
header('Content-Type: application/json');
echo json_encode($value);
?>
A more concise--but not necessarily faster--method is to use DataFrame.isin()
and DataFrame.any()
In [27]: n = 10
In [28]: df = DataFrame(randint(4, size=(n, 2)), columns=list('ab'))
In [29]: df
Out[29]:
a b
0 0 0
1 1 1
2 1 1
3 2 3
4 2 3
5 0 2
6 1 2
7 3 0
8 1 1
9 2 2
[10 rows x 2 columns]
In [30]: df.isin([1, 2])
Out[30]:
a b
0 False False
1 True True
2 True True
3 True False
4 True False
5 False True
6 True True
7 False False
8 True True
9 True True
[10 rows x 2 columns]
In [31]: df.isin([1, 2]).any(1)
Out[31]:
0 False
1 True
2 True
3 True
4 True
5 True
6 True
7 False
8 True
9 True
dtype: bool
In [32]: df.loc[df.isin([1, 2]).any(1)]
Out[32]:
a b
1 1 1
2 1 1
3 2 3
4 2 3
5 0 2
6 1 2
8 1 1
9 2 2
[8 rows x 2 columns]
Are you trying to submit a form?
Listen to the submit
event instead.
This will handle click
and enter
.
If you must use enter key...
document.querySelector('#txtSearch').addEventListener('keypress', function (e) {
if (e.key === 'Enter') {
// code for enter
}
});
there is an official YouTube Android Player API wich you can use. This is a bit more complicated but it is working better than other solutions using webclients.
First you must register your app in Googles API Console. This is completely free until your app gets over 25k request a month (or something like that). There are complete anf great tutorials under the link. I hope you can understand them. If not, ask! :)
I found this question when I want do some calculate on two date, but the date have hours and minutes value, I modified @michael-liu 's answer to fit my requirement, and it passed my test.
diff days 2012-12-31 23:00
and 2013-01-01 01:00
should equal 1. (2 hour)
diff days 2012-12-31 01:00
and 2013-01-01 23:00
should equal 1. (46 hour)
function treatAsUTC(date) {
var result = new Date(date);
result.setMinutes(result.getMinutes() - result.getTimezoneOffset());
return result;
}
var millisecondsPerDay = 24 * 60 * 60 * 1000;
function diffDays(startDate, endDate) {
return Math.floor(treatAsUTC(endDate) / millisecondsPerDay) - Math.floor(treatAsUTC(startDate) / millisecondsPerDay);
}
Tested and working 100%
public class MainActivity extends ActionBarActivity {
Context context = this;
MediaPlayer mp;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_layout);
mp = MediaPlayer.create(context, R.raw.sound);
final Button b = (Button) findViewById(R.id.Button);
b.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try {
if (mp.isPlaying()) {
mp.stop();
mp.release();
mp = MediaPlayer.create(context, R.raw.sound);
} mp.start();
} catch(Exception e) { e.printStackTrace(); }
}
});
}
}
This was all we had to do
if (mp.isPlaying()) {
mp.stop();
mp.release();
mp = MediaPlayer.create(context, R.raw.sound);
}
In my site, I use this:
<!-- for FF, Chrome, Opera -->
<link rel="icon" type="image/png" href="/assets/favicons/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="/assets/favicons/favicon-32x32.png" sizes="32x32">
<!-- for IE -->
<link rel="icon" type="image/x-icon" href="/assets/favicons/favicon.ico" >
<link rel="shortcut icon" type="image/x-icon" href="/assets/favicons/favicon.ico"/>
To simplify your life, use this favicons generator http://realfavicongenerator.net
Use below css to align Label with Checkbox
.chkbox label
{
position: relative;
top: -2px;
}
<div class="chkbox">
<asp:CheckBox ID="Ckbox" runat="server" Text="Check Box Alignment"/>
</div>
$("[style*=block]").hide();
If you change your time
column into row names, then you can use as.data.frame(as.table(mat))
for simple cases like this.
Example:
data <- c(0.1, 0.2, 0.3, 0.3, 0.4, 0.5)
dimnames <- list(time=c(0, 0.5, 1), name=c("C_0", "C_1"))
mat <- matrix(data, ncol=2, nrow=3, dimnames=dimnames)
as.data.frame(as.table(mat))
time name Freq
1 0 C_0 0.1
2 0.5 C_0 0.2
3 1 C_0 0.3
4 0 C_1 0.3
5 0.5 C_1 0.4
6 1 C_1 0.5
In this case time and name are both factors. You may want to convert time back to numeric, or it may not matter.
There is a library called BoofCV which claims to better than ZBar and other libraries.
Here are the steps to use that (any OS).
Pre-requisites:
pip install pyboof
Class to decode:
import os
import numpy as np
import pyboof as pb
pb.init_memmap() #Optional
class QR_Extractor:
# Src: github.com/lessthanoptimal/PyBoof/blob/master/examples/qrcode_detect.py
def __init__(self):
self.detector = pb.FactoryFiducial(np.uint8).qrcode()
def extract(self, img_path):
if not os.path.isfile(img_path):
print('File not found:', img_path)
return None
image = pb.load_single_band(img_path, np.uint8)
self.detector.detect(image)
qr_codes = []
for qr in self.detector.detections:
qr_codes.append({
'text': qr.message,
'points': qr.bounds.convert_tuple()
})
return qr_codes
Usage:
qr_scanner = QR_Extractor()
output = qr_scanner.extract('Your-Image.jpg')
print(output)
Tested and works on Python 3.8 (Windows & Ubuntu)
I had hard times figuring it out myself and this post helped me to find the right answer for my case. When working with financial messaging as ISO-8583 the 3DES requirements are quite specific, so for my especial case the "DESede/CBC/PKCS5Padding" combinations wasn't solving the problem. After some comparative testing of my results against some 3DES calculators designed for the financial world I found the the value "DESede/ECB/Nopadding" is more suited for the the specific task.
Here is a demo implementation of my TripleDes class (using the Bouncy Castle provider)
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Security;
import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
/**
*
* @author Jose Luis Montes de Oca
*/
public class TripleDesCipher {
private static String TRIPLE_DES_TRANSFORMATION = "DESede/ECB/Nopadding";
private static String ALGORITHM = "DESede";
private static String BOUNCY_CASTLE_PROVIDER = "BC";
private Cipher encrypter;
private Cipher decrypter;
public TripleDesCipher(byte[] key) throws NoSuchAlgorithmException, NoSuchProviderException, NoSuchPaddingException,
InvalidKeyException {
Security.addProvider(new BouncyCastleProvider());
SecretKey keySpec = new SecretKeySpec(key, ALGORITHM);
encrypter = Cipher.getInstance(TRIPLE_DES_TRANSFORMATION, BOUNCY_CASTLE_PROVIDER);
encrypter.init(Cipher.ENCRYPT_MODE, keySpec);
decrypter = Cipher.getInstance(TRIPLE_DES_TRANSFORMATION, BOUNCY_CASTLE_PROVIDER);
decrypter.init(Cipher.DECRYPT_MODE, keySpec);
}
public byte[] encode(byte[] input) throws IllegalBlockSizeException, BadPaddingException {
return encrypter.doFinal(input);
}
public byte[] decode(byte[] input) throws IllegalBlockSizeException, BadPaddingException {
return decrypter.doFinal(input);
}
}
what about that simple way)
$(document).ready ->
$('#datepicker').datepicker( dateFormat: 'yy-mm-dd', onSelect: (dateStr) ->
alert dateStr # yy-mm-dd
#OR
alert $("#datepicker").val(); # yy-mm-dd
You could use a helper method to get rid of @SuppressWarnings("unchecked")
all over a class.
@SuppressWarnings("unchecked")
private static <T> Class<T> generify(Class<?> cls) {
return (Class<T>)cls;
}
Then you could write
Class<List<Foo>> cls = generify(List.class);
Other usage examples are
Class<Map<String, Integer>> cls;
cls = generify(Map.class);
cls = TheClass.<Map<String, Integer>>generify(Map.class);
funWithTypeParam(generify(Map.class));
public void funWithTypeParam(Class<Map<String, Integer>> cls) {
}
However, since it is rarely really useful, and the usage of the method defeats the compiler's type checking, I would not recommend to implement it in a place where it is publicly accessible.
you can build and execute dynamic sql to do this, but its really not ideal
JSONArray
may be what you want.
String message;
JSONObject json = new JSONObject();
json.put("name", "student");
JSONArray array = new JSONArray();
JSONObject item = new JSONObject();
item.put("information", "test");
item.put("id", 3);
item.put("name", "course1");
array.put(item);
json.put("course", array);
message = json.toString();
// message
// {"course":[{"id":3,"information":"test","name":"course1"}],"name":"student"}
You can do it with DOCTYPE
, but you have to use table
. Check this out:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<style>
*{margin:0;padding:0}
html, body {height:100%;width:100%;overflow:hidden}
table {height:100%;width:100%;table-layout:static;border-collapse:collapse}
iframe {height:100%;width:100%}
.header {border-bottom:1px solid #000}
.content {height:100%}
</style>
</head>
<body>
<table>
<tr><td class="header"><div><h1>Header</h1></div></td></tr>
<tr><td class="content">
<iframe src="http://google.com/" frameborder="0"></iframe></td></tr>
</table>
</body>
</html>
I just downloaded Git 2.7.0 and added an alias to the .bashrc for editing files with VS Code:
alias code='/c/Program\ Files\ \(x86\)/Microsoft\ VS\ Code/bin/code.cmd'
Should also work with other Editors...
Yes, sql can do this, but with a different syntax. The sqlite documentation is pretty good, by the way. It will also tell you that the only way to insert several row is use a select statement as the source of the data to be inserted.
A slight tangent -- if you want to parse and evaluate an entire expression string which contains (nested!) functions, consider NCalc (http://ncalc.codeplex.com/ and nuget)
Ex. slightly modified from the project documentation:
// the expression to evaluate, e.g. from user input (like a calculator program, hint hint college students)
var exprStr = "10 + MyFunction(3, 6)";
Expression e = new Expression(exprString);
// tell it how to handle your custom function
e.EvaluateFunction += delegate(string name, FunctionArgs args) {
if (name == "MyFunction")
args.Result = (int)args.Parameters[0].Evaluate() + (int)args.Parameters[1].Evaluate();
};
// confirm it worked
Debug.Assert(19 == e.Evaluate());
And within the EvaluateFunction
delegate you would call your existing function.
<asp:GridView ID="GridView1" AutoGenerateEditButton="True"
ondatabound="gv_DataBound" runat="server" DataSourceID="SqlDataSource1"
AutoGenerateColumns="False" width="600px">
<Columns>
<asp:BoundField HeaderText="UserId"
DataField="UserId"
SortExpression="UserId" ItemStyle-Width="400px"></asp:BoundField>
</Columns>
</asp:GridView>
In Windows 7 I did this:
Done!
Since -f
caused another problem, I developed another solution.
The -f
flag does not solved my problem because my onbuild
image looks for a file in a folder and had to call like this:
-f foo/bar/Dockerfile foo/bar
instead of
-f foo/bar/Dockerfile .
Also note that this is only solution for some cases as -f
flag
In my case (admittedly very arcane and not likely to be reproduced often), this was causing the problem (this code is related to PDF generation using iTextSharp):
PdfPTable tblDuckbilledPlatypi = new PdfPTable(3);
float[] DuckbilledPlatypiRowWidths = new float[] { 42f, 76f };
tblDuckbilledPlatypi.SetWidths(DuckbilledPlatypiRowWidths);
The declaration of a 3-celled/columned table, and then setting only two vals for the width was what caused the problem, apparently. Once I changed "PdfPTable(3)" to "PdfPTable(2)" the problem went the way of the convection oven.
Your PersonSheets has a property int Id
, Id
isn't in the post, so modelbinding fails. Make Id nullable (int?) or send atleast Id = 0 with the POst .
for property, value in vars(theObject).items():
print(property, ":", value)
Be aware that in some rare cases there's a __slots__
property, such classes often have no __dict__
.
Docker for Mac (Beta)
~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/log/d??ocker.log
<a href="#" onClick="window.open('http://www.yahoo.com', '_blank')">test</a>
Easy as that.
Or without JS
<a href="http://yahoo.com" target="_blank">test</a>
The keyword this can be used to call a constructor from a constructor, when writing several constructor for a class, there are times when you'd like to call one constructor from another to avoid duplicate code.
Bellow is a link that I explain other topic about constructor and getters() and setters() and I used a class with two constructors. I hope the explanations and examples help you.
I use the following and it works very well!
window.open(url, '_blank').focus();
Yes , Jared and Kelly Orr are right. I use the following code like in edit exception.
foreach (var issue in dinner.GetRuleViolations())
{
ModelState.AddModelError(issue.PropertyName, issue.ErrorMessage);
}
in stead of
ModelState.AddRuleViolations(dinner.GetRuleViolations());
To answer one of the questions, it is necessary to have both a global and local install for the tools to work.
If you try to run ng serve
on an application without the local install of the CLI (global install only), you will get the following error.
You have to be inside an Angular CLI project in order to use the serve command.
It will also print this message:
Please take the following steps to avoid issues:
"npm install --save-dev @angular/cli@latest"
Run that npm
command to update the CLI locally, and avoid the warning that you are getting.
Other question: It looks like they do not have to be in sync, but it's probably best that they are in order to avoid any unusual behavior with the tool, or any inconsistencies with the code the tool generates.
Why do we need both the global install, and a local install?
The global install is needed to start a new application. The ng new <app-name>
command is run using the global installation of the CLI. In fact, if you try to run ng new
while inside the folder structure of an existing CLI application, you get this lovely error:
You cannot use the
new
command inside an Angular CLI project.
Other commands that can be run from the global install are ng help
, ng get/set
with the --global
option, ng version
, ng doc
, and ng completion
.
The local install of the CLI is used after an application has been built. This way, when new versions of the CLI are available, you can update your global install, and not affect the local install. This is good for the stability of a project. Most ng
commands only make sense with the local version, like lint
, build
and serve
, etc.
According to the CLI GitHub readme, to update the CLI you must update the global and local package. However, I have used the CLI where the global and local version vary without any trouble so far. If I ever run across an error related to having the global and local CLI versions out of sync, I will post that here.
For me the solution was:
<input type="number" min="0" oninput="this.value = Math.abs(this.value)">
_x000D_
As suggested on the comments with a minor change to work if 0 is the min value.
<input type="number" min="0" oninput="this.value =
!!this.value && Math.abs(this.value) >= 0 ? Math.abs(this.value) : null">
_x000D_
I had this problem, where I was trying to read in a CSV without passing in column names.
df = pd.read_csv(filename, header=None)
I specified the column names in a list beforehand and then pass them into names
, and it solved it immediately. If you don't have set column names, you could just create as many placeholder names as the maximum number of columns that might be in your data.
col_names = ["col1", "col2", "col3", ...]
df = pd.read_csv(filename, names=col_names)
Simple solution would be to remove padding from .panel-heading
and add to .panel-title a
.
.panel-heading {
padding: 0;
}
.panel-title a {
display: block;
padding: 10px 15px;
}
This solution is similar to the above one posted by calfzhou, slightly different.
I managed to get this working using the code from @jluckyiv's answer but I had to add in @JavascriptInterface annotation to the processHTML method in the MyJavaScriptInterface.
class MyJavaScriptInterface
{
@SuppressWarnings("unused")
@JavascriptInterface
public void processHTML(String html)
{
// process the html as needed by the app
}
}
Nodemon emits events upon every change in state; start, restart crash, etc. You can add a Nodemon configuration file (nodemon.json) like so:
{
"events": {
"start": "npm run *your_file*"
}
}
Read more in Nodemon events — run tasks at server start, restart, crash, exit.
For me the better solution was the following. Since the initiative of closing the connection was done by the server, the setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
had no effect and the TIME_WAIT was avoiding a new connection on the same port with error:
[Errno 10048]: Address already in use. Only one usage of each socket address (protocol/IP address/port) is normally permitted
I finally used the solution to let the OS choose the port itself, then another port is used if the precedent is still in TIME_WAIT.
I replaced:
self._socket.bind((guest, port))
with:
self._socket.bind((guest, 0))
As it was indicated in the python socket documentation of a tcp address:
If supplied, source_address must be a 2-tuple (host, port) for the socket to bind to as its source address before connecting. If host or port are ‘’ or 0 respectively the OS default behavior will be used.
It's the Substring method of String
, with the first argument set to 0.
myString.Substring(0,1);
[The following was added by Almo; see Justin J Stark's comment. —Peter O.]
Warning:
If the string's length is less than the number of characters you're taking, you'll get an ArgumentOutOfRangeException
.
try something like this :
$.ajax({
type: 'POST',
url: 'loginCheck',
data: $(formLogin).serialize(),
dataType: 'json',
success: function (textStatus, status) {
console.log(textStatus);
console.log(status);
},
error: function(xhr, textStatus, error) {
console.log(xhr.responseText);
console.log(xhr.statusText);
console.log(textStatus);
console.log(error);
}
});
You're getting errors because you're attempting to read post variables that haven't been set, they only get set on form submission. Wrap your php code at the bottom in an
if ($_SERVER['REQUEST_METHOD'] === 'POST') { ... }
Also, your code is ripe for SQL injection. At the very least use mysql_real_escape_string
on the post vars before using them in SQL queries. mysql_real_escape_string
is not good enough for a production site, but should score you extra points in class.
Define a class like this :
public class myclass {
string id ;
string title ;
string content;
}
public class program {
public void Main () {
List<myclass> objlist = new List<myclass> () ;
foreach (var value in objlist) {
TextBox1.Text = value.id ;
TextBox2.Text= value.title;
TextBox3.Text= value.content ;
}
}
}
I tried to draw a sketch and you can improve it in many ways. Instead of defining class "myclass", you can define struct.
In addition to The Go Programming Language Specification, you should read Effective Go. In the section on maps, they say, amongst other things:
An attempt to fetch a map value with a key that is not present in the map will return the zero value for the type of the entries in the map. For instance, if the map contains integers, looking up a non-existent key will return 0. A set can be implemented as a map with value type bool. Set the map entry to true to put the value in the set, and then test it by simple indexing.
attended := map[string]bool{ "Ann": true, "Joe": true, ... } if attended[person] { // will be false if person is not in the map fmt.Println(person, "was at the meeting") }
Sometimes you need to distinguish a missing entry from a zero value. Is there an entry for "UTC" or is that 0 because it's not in the map at all? You can discriminate with a form of multiple assignment.
var seconds int var ok bool seconds, ok = timeZone[tz]
For obvious reasons this is called the “comma ok” idiom. In this example, if tz is present, seconds will be set appropriately and ok will be true; if not, seconds will be set to zero and ok will be false. Here's a function that puts it together with a nice error report:
func offset(tz string) int { if seconds, ok := timeZone[tz]; ok { return seconds } log.Println("unknown time zone:", tz) return 0 }
To test for presence in the map without worrying about the actual value, you can use the blank identifier (_) in place of the usual variable for the value.
_, present := timeZone[tz]
Vohuman's answer lead me to my own implementation:
$(document).on("vclick", ".className", function() {
// Whatever you want to do
});
Instead of:
$(document).ready(function($) {
$('.className').click(function(){
// Whatever you want to do
});
});
I hope this helps!
There are various management views built into the product. On SQL 2000 you'd use sysprocesses. On SQL 2K5 there are more views like sys.dm_exec_connections, sys.dm_exec_sessions and sys.dm_exec_requests.
There are also procedures like sp_who that leverage these views. In 2K5 Management Studio you also get Activity Monitor.
And last but not least there are community contributed scripts like the Who Is Active by Adam Machanic.
gettimeofday() will probably do what you want.
If you're on Intel hardware, here's how to read the CPU real-time instruction counter. It will tell you the number of CPU cycles executed since the processor was booted. This is probably the finest-grained, lowest overhead counter you can get for performance measurement.
Note that this is the number of CPU cycles. On linux you can get the CPU speed from /proc/cpuinfo and divide to get the number of seconds. Converting this to a double is quite handy.
When I run this on my box, I get
11867927879484732 11867927879692217 it took this long to call printf: 207485
Here's the Intel developer's guide that gives tons of detail.
#include <stdio.h>
#include <stdint.h>
inline uint64_t rdtsc() {
uint32_t lo, hi;
__asm__ __volatile__ (
"xorl %%eax, %%eax\n"
"cpuid\n"
"rdtsc\n"
: "=a" (lo), "=d" (hi)
:
: "%ebx", "%ecx");
return (uint64_t)hi << 32 | lo;
}
main()
{
unsigned long long x;
unsigned long long y;
x = rdtsc();
printf("%lld\n",x);
y = rdtsc();
printf("%lld\n",y);
printf("it took this long to call printf: %lld\n",y-x);
}
Value 127 is returned by /bin/sh
when the given command is not found within your PATH
system variable and it is not a built-in shell command. In other words, the system doesn't understand your command, because it doesn't know where to find the binary you're trying to call.
You can use dirname
:
os.path.dirname(path)
Return the directory name of pathname path. This is the first element of the pair returned by passing path to the function split().
And given the full path, then you can split normally to get the last portion of the path. For example, by using basename
:
os.path.basename(path)
Return the base name of pathname path. This is the second element of the pair returned by passing path to the function split(). Note that the result of this function is different from the Unix basename program; where basename for '/foo/bar/' returns 'bar', the basename() function returns an empty string ('').
All together:
>>> import os
>>> path=os.path.dirname("C:/folder1/folder2/filename.xml")
>>> path
'C:/folder1/folder2'
>>> os.path.basename(path)
'folder2'
Do not use more than one style attribute. Just seperate styles in the style attribute with ;
It is a block of inline CSS, so think of this as you would do CSS in a separate stylesheet.
So in this case its:
style="height:100px;width:100px;"
You can use this for any CSS style, so if you wanted to change the colour of the text to white:
style="height:100px;width:100px;color:#ffffff"
and so on.
However, it is worth using inline CSS sparingly, as it can make code less manageable in future. Using an external stylesheet may be a better option for this. It depends really on your requirements. Inline CSS does make for quicker coding.
Convert binary file to base64 & vice versa. Prove in python 3.5.2
import base64
read_file = open('/tmp/newgalax.png', 'rb')
data = read_file.read()
b64 = base64.b64encode(data)
print (b64)
# Save file
decode_b64 = base64.b64decode(b64)
out_file = open('/tmp/out_newgalax.png', 'wb')
out_file.write(decode_b64)
# Test in python 3.5.2
Template driven method
#receiverInput="ngModel" (blur)="receiverInput.control.setValue('')"
The instructions by peter_budo worked perfectly. I had to add the jars under /Library/Java/JavaVirtualMachines/JDK 1.7.0 Developer Preview.jdk/Contents/Home/jre/lib/ to my IntelliJ project libraries. Now it works like a charm. Note that I didn't need my IDE itself to run under 1.7; rather, I only needed to be able to compile and run against 1.7. I'll most likely continue to use Apple's JRE for running the IDE since it's probably more stable with respect to graphics routines (Swing, AWT). Like the OP, I was really keen on testing out the new NIO2 API. Looking good so far. Thanks, Peter.
Here is a version of Carlo's answer that can be used in a class:
class Formatter
{
public function objectToArray($data)
{
if (is_object($data)) {
$data = get_object_vars($data);
}
if (is_array($data)) {
return array_map(array($this, 'objectToArray'), $data);
}
return $data;
}
}
Id go for:
Math.abs(parseFloat($(this).css("property")));
Facelets is a XML based view technology. The &
is a special character in XML representing the start of an entity like &
which ends with the ;
character. You'd need to either escape it, which is ugly:
rendered="#{beanA.prompt == true && beanB.currentBase != null}"
or to use the and
keyword instead, which is preferred as to readability and maintainability:
rendered="#{beanA.prompt == true and beanB.currentBase != null}"
Unrelated to the concrete problem, comparing booleans with booleans makes little sense when the expression expects a boolean outcome already. I'd get rid of == true
:
rendered="#{beanA.prompt and beanB.currentBase != null}"
Here is what I had and what caused my "incomplete type error":
#include "X.h" // another already declared class
class Big {...} // full declaration of class A
class Small : Big {
Small() {}
Small(X); // line 6
}
//.... all other stuff
What I did in the file "Big.cpp", where I declared the A2's constructor with X as a parameter is..
Small::Big(X my_x) { // line 9 <--- LOOK at this !
}
I wrote "Small::Big" instead of "Small::Small", what a dumb mistake.. I received the error "incomplete type is now allowed" for the class X all the time (in lines 6 and 9), which made a total confusion..
Anyways, that is where a mistake can happen, and the main reason is that I was tired when I wrote it and I needed 2 hours of exploring and rewriting the code to reveal it.
You can use the Conditional Formatting to replace text and NOT effect any formulas. Simply go to the Rule's format where you will see Number, Font, Border and Fill.
Go to the Number tab and select CUSTOM
. Then simply type where it says TYPE
: what you want to say in QUOTES.
Example.. "OTHER"
You can copy subscribers dictionary object to a same type of temporary dictionary object and then iterate the temporary dictionary object using foreach loop.
/// <summary>
/// Contains global variables for project.
/// </summary>
public static class GlobalVar
{
/// <summary>
/// Global variable that is constant.
/// </summary>
public const string GlobalString = "Important Text";
/// <summary>
/// Static value protected by access routine.
/// </summary>
static int _globalValue;
/// <summary>
/// Access routine for global variable.
/// </summary>
public static int GlobalValue
{
get
{
return _globalValue;
}
set
{
_globalValue = value;
}
}
/// <summary>
/// Global static field.
/// </summary>
public static bool GlobalBoolean;
}
A simple way to call it from anywhere is just use "null" and "RoutedEventArgs.Empty", like this:
SubGraphButton_Click(null, RoutedEventArgs.Empty);
Here's a creative idea using box-shadow
:
#header {
background-image: url("apple.jpg");
box-shadow: inset 0 0 99999px rgba(0, 120, 255, 0.5);
}
The background
sets the background for your element.
The box-shadow
is the important bit. It basically sets a really big shadow on the inside of the element, on top of the background, that is semi-transparent
$("#DateOfBirth").datepicker({
yearRange: "-100:+0",
changeMonth: true,
changeYear: true,
});
yearRange: '1950:2013', // specifying a hard coded year range or this way
yearRange: "-100:+0", // last hundred years
It will help to show drop down for year and month selection.
You are looking for the __getitem__
method. See http://docs.python.org/reference/datamodel.html, section 3.4.6
You might be able to use Object.assign(...)
to apply your properties to the created element. See comments for additional details.
Keep in mind that height
and width
attributes are defined in pixels, not percents. You'll have to use CSS to make it fluid.
var elem = document.createElement('img')_x000D_
Object.assign(elem, {_x000D_
className: 'my-image-class',_x000D_
src: 'https://dummyimage.com/320x240/ccc/fff.jpg',_x000D_
height: 120, // pixels_x000D_
width: 160, // pixels_x000D_
onclick: function () {_x000D_
alert('Clicked!')_x000D_
}_x000D_
})_x000D_
document.body.appendChild(elem)_x000D_
_x000D_
// One-liner:_x000D_
// document.body.appendChild(Object.assign(document.createElement(...), {...}))
_x000D_
.my-image-class {_x000D_
height: 100%;_x000D_
width: 100%;_x000D_
border: solid 5px transparent;_x000D_
box-sizing: border-box_x000D_
}_x000D_
_x000D_
.my-image-class:hover {_x000D_
cursor: pointer;_x000D_
border-color: red_x000D_
}_x000D_
_x000D_
body { margin:0 }
_x000D_
To link to a YouTube video so it plays in HD by default, use the following URL:
https://www.youtube.com/v/VIDEOID?version=3&vq=hd1080
Change VIDEOID to the YouTube video ID that you want to link to. When someone follows the link, it will display the highest-resolution available (up to 1080p) in full-screen mode. Unfortunately, vq=hd1080 does not work on the normal YouTube site (with comments and related videos).
Simply outputting something is PowerShell is a thing of beauty - and one its greatest strengths. For example, the common Hello, World! application is reduced to a single line:
"Hello, World!"
It creates a string object, assigns the aforementioned value, and being the last item on the command pipeline it calls the .toString()
method and outputs the result to STDOUT
(by default). A thing of beauty.
The other Write-*
commands are specific to outputting the text to their associated streams, and have their place as such.
You can pass PHP arrays to JavaScript using json_encode
PHP function.
<?php
$phpArray = array(
0 => "Mon",
1 => "Tue",
2 => "Wed",
3 => "Thu",
4 => "Fri",
5 => "Sat",
6 => "Sun",
)
?>
<script type="text/javascript">
var jArray = <?php echo json_encode($phpArray); ?>;
for(var i=0; i<jArray.length; i++){
alert(jArray[i]);
}
</script>
You can do this conversion with the OpenSSL library
Windows binaries can be found here:
http://www.slproweb.com/products/Win32OpenSSL.html
Once you have the library installed, the command you need to issue is:
openssl x509 -in mycert.crt -out mycert.pem -outform PEM
I was using Android Pie and nothing seemed to worked so I played around with app:tabTextAppearance attribute. I know its not the perfect answer but might help someone.
<android.support.design.widget.TabLayout
android:id="@+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabTextAppearance="@style/TextAppearance.AppCompat.Caption" />
You can also use unshift() to prepend to a list
Have you tried something like:
textbox.text = "text" & system.environment.newline & "some more text"