I ran into this issue around the time MVC1 was first released. See Generating PDF, error with IE and HTTPS regarding the Cache-Control header.
You may get the following error while creating an optimized production build when using query-string module.
Failed to minify the code from this file: ./node_modules/query-string/index.js:8
To overcome this, kindly use the alternative module called stringquery which does the same process well without any issues while running the build.
import querySearch from "stringquery";
var query = querySearch(this.props.location.search);
quit()
: Quits this driver, closing every associated window that was open.
close()
: Close the current window, quitting the browser if it's the last window currently open.
Here's how you do it.
First, decorate your list this way:
<div class="p">
<div class="text-bullet-centered">⁕</div>
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
</div>
<div class="p">
<div class="text-bullet-centered">⁕</div>
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
text text text text text text text text text text text text text text text text
</div>
Add this CSS:
.p {
position: relative;
margin: 20px;
margin-left: 50px;
}
.text-bullet-centered {
position: absolute;
left: -40px;
top: 50%;
transform: translate(0%,-50%);
font-weight: bold;
}
And voila, it works. Resize a window, to see that it indeed works.
As a bonus, you can easily change font and color of bullets, which is very hard to do with normal lists.
.p {_x000D_
position: relative;_x000D_
margin: 20px;_x000D_
margin-left: 50px;_x000D_
}_x000D_
_x000D_
.text-bullet-centered {_x000D_
position: absolute;_x000D_
left: -40px;_x000D_
top: 50%;_x000D_
transform: translate(0%, -50%);_x000D_
font-weight: bold;_x000D_
}
_x000D_
<div class="p">_x000D_
<div class="text-bullet-centered">⁕</div>_x000D_
text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text_x000D_
text text text text text text text text text text text text text_x000D_
</div>_x000D_
<div class="p">_x000D_
<div class="text-bullet-centered">⁕</div>_x000D_
text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text text_x000D_
text text text text text text text text text text text text text_x000D_
</div>
_x000D_
Since I wrote this answer, github released a native windows client which makes all the below steps redundant.
You can also use sourcetree to get both git and mercurial setup on Windows.
Here is how you would do it in Windows:
git init
. This will say "Initialized empty git repository in ....git" (...
is the path).git add filename
. If you want to add all your files, you can do git add .
git commit -m "adding files"
. -m
lets you add the commit message in line.So far, the above steps is what you would do even if you were not using github. They are the normal steps to start a git repository. Remember that git is distributed (decentralized), means you don't need to have a "central server" (or even a network connection), to use git.
Now you want to push the changes to your git repository hosted with github. To you this by telling git to add a remote location, and you do that with this command:
git remote add origin https://github.com/yourusername/your-repo-name.git
*Note: your-repo-name
should be created in GitHub before you do a git remote add origin ...
Once you have done that, git now knows about your remote repository. You can then tell it to push (which is "upload") your commited files:
git push -u origin master
Implement toString() on the class.
I recommend the Apache Commons ToStringBuilder to make this easier. With it, you just have to write this sort of method:
public String toString() {
return new ToStringBuilder(this).
append("name", name).
append("age", age).
toString();
}
In order to get this sort of output:
Person@7f54[name=Stephen,age=29]
There is also a reflective implementation.
Also seems nobody noticed -x operator on symlinks. A symlink (chain) to a regular file (not classified as executable) fails the test.
Crude, but does what you want, breaks the execution scope:
$(function(){
setTimeout(function(){
//Code to call
},1);
});
I'm seeing this a bit too often lately. Just today I had the issue with a class in the same package as the affected (red-flagged) class !
Exiting eclipse and restarting generally works to resolve the red flag on the affected class but sometimes a red flag is left on the project, then I also need to close the project and reopen it as well to get rid of the standalone red flag. It looks quite weird to see a red flag on a project, with no red flags in any of its child directories.
With maven project clusters, I close and open all of the projects in the cluster after restarting eclipse.
I took what you had, and added another X-Testing
header
var config = {headers: {
'Authorization': 'Basic d2VudHdvcnRobWFuOkNoYW5nZV9tZQ==',
'Accept': 'application/json;odata=verbose',
"X-Testing" : "testing"
}
};
$http.get("/test", config);
And in the Chrome network tab, I see them being sent.
GET /test HTTP/1.1
Host: localhost:3000
Connection: keep-alive
Accept: application/json;odata=verbose
X-Requested-With: XMLHttpRequest
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_3) AppleWebKit/537.22 (KHTML, like Gecko) Chrome/25.0.1364.172 Safari/537.22
Authorization: Basic d2VudHdvcnRobWFuOkNoYW5nZV9tZQ==
X-Testing: testing
Referer: http://localhost:3000/
Accept-Encoding: gzip,deflate,sdch
Accept-Language: en-US,en;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
Are you not seeing them from the browser, or on the server? Try the browser tooling or a debug proxy and see what is being sent out.
I'm late to the party, but for Mac users who don't want to go down the XQuartz path, here is a working example that builds a Fedora Image, with a Desktop Environment (xfce) using Xvfb
and VNC
. It's simple, and works:
On a Mac, you can just access it using the Screen Sharing (default) application, connecting to localhost:5901
.
Dockerfile:
FROM fedora
USER root
# Set root password, so I know it for the future
RUN echo "root:password123" | chpasswd
# Install Java, Open SSL, etc.
RUN dnf update -y --setopt=deltarpm=false \
&& dnf install -y --setopt=deltarpm=false \
openssl.x86_64 \
java-1.8.0-openjdk.x86_64 \
xorg-x11-server-Xvfb \
x11vnc \
firefox \
@xfce-desktop-environment \
&& dnf clean all
# Create developer user (password: password123, uid: 11111)
RUN useradd -u 11111 -g users -d /home/developer -s /bin/bash -p $(echo password123 | openssl passwd -1 -stdin) developer
# Copy startup script over to the developer home
COPY start-vnc.sh /home/developer/start-vnc.sh
RUN chmod 700 /home/developer/start-vnc.sh
RUN chown developer.users /home/developer/start-vnc.sh
# Expose VNC, SSH
EXPOSE 5901 22
# Set up VNC Password and DisplayEnvVar to point to Display1Screen0
USER developer
ENV DISPLAY :1.0
RUN mkdir ~/.x11vnc
RUN x11vnc -storepasswd letmein ~/.x11vnc/passwd
WORKDIR /home/developer
CMD ["/home/developer/start-vnc.sh"]
start-vnc.sh
#!/bin/sh
Xvfb :1 -screen 0 1024x768x24 &
sleep 5
x11vnc -noxdamage -many -display :1 -rfbport 5901 -rfbauth ~/.x11vnc/passwd -bg
sleep 2
xfce4-session &
bash
# while true; do sleep 1000; done
Check the linked readme for build and run commands if you want/need.
Hope this Helps:
public String getSystemTimeInBelowFormat() {
String timestamp = new SimpleDateFormat("yyyy-mm-dd 'T' HH:MM:SS.mmm-HH:SS").format(new Date());
return timestamp;
}
quux00's answer only tells about comparing basic types.
If you need to compare types you defined, you shouldn't use reflect.TypeOf(xxx)
. Instead, use reflect.TypeOf(xxx).Kind()
.
There are two categories of types:
Here is a full example:
type MyFloat float64
type Vertex struct {
X, Y float64
}
type EmptyInterface interface {}
type Abser interface {
Abs() float64
}
func (v Vertex) Abs() float64 {
return math.Sqrt(v.X*v.X + v.Y*v.Y)
}
func (f MyFloat) Abs() float64 {
return math.Abs(float64(f))
}
var ia, ib Abser
ia = Vertex{1, 2}
ib = MyFloat(1)
fmt.Println(reflect.TypeOf(ia))
fmt.Println(reflect.TypeOf(ia).Kind())
fmt.Println(reflect.TypeOf(ib))
fmt.Println(reflect.TypeOf(ib).Kind())
if reflect.TypeOf(ia) != reflect.TypeOf(ib) {
fmt.Println("Not equal typeOf")
}
if reflect.TypeOf(ia).Kind() != reflect.TypeOf(ib).Kind() {
fmt.Println("Not equal kind")
}
ib = Vertex{3, 4}
if reflect.TypeOf(ia) == reflect.TypeOf(ib) {
fmt.Println("Equal typeOf")
}
if reflect.TypeOf(ia).Kind() == reflect.TypeOf(ib).Kind() {
fmt.Println("Equal kind")
}
The output would be:
main.Vertex
struct
main.MyFloat
float64
Not equal typeOf
Not equal kind
Equal typeOf
Equal kind
As you can see, reflect.TypeOf(xxx)
returns the direct types which you might want to use, while reflect.TypeOf(xxx).Kind()
returns the basic types.
Here's the conclusion. If you need to compare with basic types, use reflect.TypeOf(xxx).Kind()
; and if you need to compare with self-defined types, use reflect.TypeOf(xxx)
.
if reflect.TypeOf(ia) == reflect.TypeOf(Vertex{}) {
fmt.Println("self-defined")
} else if reflect.TypeOf(ia).Kind() == reflect.Float64 {
fmt.Println("basic types")
}
Quoting text from Apple's Technical Note on Unwind Segue: To add an unwind segue that will only be triggered programmatically, control+drag from the scene's view controller icon to its exit icon, then select an unwind action for the new segue from the popup menu.
Asynchronous action methods are useful when an action must perform several independent long running operations.
A typical use for the AsyncController class is long-running Web service calls.
Should my database calls be asynchronous ?
The IIS thread pool can often handle many more simultaneous blocking requests than a database server. If the database is the bottleneck, asynchronous calls will not speed up the database response. Without a throttling mechanism, efficiently dispatching more work to an overwhelmed database server by using asynchronous calls merely shifts more of the burden to the database. If your DB is the bottleneck, asynchronous calls won’t be the magic bullet.
You should have a look at 1 and 2 references
Derived from @PanagiotisKanavos comments:
Moreover, async doesn't mean parallel. Asynchronous execution frees a valuable threadpool thread from blocking for an external resource, for no complexity or performance cost. This means the same IIS machine can handle more concurrent requests, not that it will run faster.
You should also consider that blocking calls start with a CPU-intensive spinwait. During stress times, blocking calls will result in escalating delays and app pool recycling. Asynchronous calls simply avoid this
string[] servers = new string[] {
"nist1-ny.ustiming.org",
"nist1-nj.ustiming.org",
"nist1-pa.ustiming.org",
"time-a.nist.gov",
"time-b.nist.gov",
"nist1.aol-va.symmetricom.com",
"nist1.columbiacountyga.gov",
"nist1-chi.ustiming.org",
"nist.expertsmi.com",
"nist.netservicesgroup.com"
};
string dateStart, dateEnd;
void SetDateToday()
{
Random rnd = new Random();
DateTime result = new DateTime();
int found = 0;
foreach (string server in servers.OrderBy(s => rnd.NextDouble()).Take(5))
{
Console.Write(".");
try
{
string serverResponse = string.Empty;
using (var reader = new StreamReader(new System.Net.Sockets.TcpClient(server, 13).GetStream()))
{
serverResponse = reader.ReadToEnd();
Console.WriteLine(serverResponse);
}
if (!string.IsNullOrEmpty(serverResponse))
{
string[] tokens = serverResponse.Split(' ');
string[] date = tokens[1].Split(' ');
string time = tokens[2];
string properTime;
dateStart = date[2] + "/" + date[0] + "/" + date[1];
int month = Convert.ToInt16(date[0]), day = Convert.ToInt16(date[2]), year = Convert.ToInt16(date[1]);
day = day + 30;
if ((month % 2) == 0)
{
//MAX DAYS IS 30
if (day > 30)
{
day = day - 30;
month++;
if (month > 12)
{
month = 1;
year++;
}
}
}
else
{
//MAX DAYS IS 31
if (day > 31)
{
day = day - 31;
month++;
if (month > 12)
{
month = 1;
year++;
}
}
}
string sday, smonth;
if (day < 10)
{
sday = "0" + day;
}
if (month < 10)
{
smonth = "0" + month;
}
dateEnd = sday + "/" + smonth + "/" + year.ToString();
}
}
catch
{
// Ignore exception and try the next server
}
}
if (found == 0)
{
MessageBox.Show(this, "Internet Connection is required to complete Registration. Please check your internet connection and try again.", "Not connected", MessageBoxButtons.OK, MessageBoxIcon.Information);
Success = false;
}
}
I saw that code in some part of some website. Doing the example above exposes a glitch: Changing the current Time and Date to the start date would prolong the application expiration.
The solution? Refer to a online time server.
the Microsoft XSD inference tool is a good, free solution. Many XML editing tools, such as XmlSpy (mentioned by @Garth Gilmour) or OxygenXML Editor also have that feature. They're rather expensive, though. BizTalk Server also has an XSD inferring tool as well.
edit: I just discovered the .net XmlSchemaInference class, so if you're using .net you should consider that
You have to replace YourID and value="3" for your current ones.
$(document).ready(function() {_x000D_
$('#YourID option[value="3"]').attr("selected", "selected");_x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.2.3/jquery.min.js"></script>_x000D_
<select id="YourID">_x000D_
<option value="1">A</option>_x000D_
<option value="2">B</option>_x000D_
<option value="3">C</option>_x000D_
<option value="4">D</option>_x000D_
</select>
_x000D_
and value="3" for your current ones.
$('#YourID option[value="3"]').attr("selected", "selected");
<select id="YourID" >
<option value="1">A </option>
<option value="2">B</option>
<option value="3">C</option>
<option value="4">D</option>
</select>
We can use this:
DELETE FROM table_name WHERE date_column <
CAST(CONVERT(char(8), (DATEADD(day,-30,GETDATE())), 112) AS datetime)
But a better option is to use:
DELETE FROM table_name WHERE DATEDIFF(dd, date_column, GETDATE()) > 30
The former is not sargable (i.e. functions on the right side of the expression so it can’t use index) and takes 30 seconds, the latter is sargable and takes less than a second.
As a specific instance of one of the two hard things in computing, it’s interesting to see how the answers to this question have changed since this question was originally posted. Thankfully, the powers that be have brought order to the chaos:
In February this year (2017), the W3C published the Standards Track RFC 8081: The "font" Top-Level Media Type which greatly simplifies the appropriate media types for font files:
This memo serves to register and document the "font" top-level media type, under which subtypes for representation formats for fonts may be registered. This document also serves as a registration application for a set of intended subtypes, which are representative of some existing subtypes already in use, and currently registered under the "application" tree by their separate registrations.
It’s quite a readable document and it describes the historical context (lack of “a registration of formats for font”) which gave rise to the confusing mix of media types and sub-types. With the (relatively) recent rise in popularity of downloadable web fonts, the W3C recognised the need for an “intuitive top-level font type”. What they came up with is … font
.
Accordingly, the IANA have since updated their official list of Media types with the font
media type and all its sub-types that they currently recognise:
collection font/collection
otf font/otf
sfnt font/sfnt
ttf font/ttf
woff font/woff
woff2 font/woff2
Here’s hoping this is the last answer this question needs.
Which WebControl are you using? Did you try?
DateTime.Now.ToString("yyyy-MM-dd");
urllib
has been split up in Python 3
.
The urllib.urlencode()
function is now urllib.parse.urlencode()
,
the urllib.urlopen()
function is now urllib.request.urlopen()
.
How about this one using BlueBird?
function fetchUserDetails(arr) {
return Promise.each(arr, function(email) {
return db.getUser(email).done(function(res) {
logger.log(res);
});
});
}
A great way for cloning an array is with an array literal and the spread syntax. This is made possible by ES2015.
const objArray = [{name:'first'}, {name:'second'}, {name:'third'}, {name:'fourth'}];
const clonedArr = [...objArray];
console.log(clonedArr) // [Object, Object, Object, Object]
You can find this copy option in MDN's documentation: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Spread_operator#Copy_an_array
It is also an Airbnb's best practice. https://github.com/airbnb/javascript#es6-array-spreads
Note: The spread syntax in ES2015 goes one level deep while copying an array. Therefore, they are unsuitable for copying multidimensional arrays.
Reminder: the Android Emulator internet connection does not work if you turn on a VPN system on you computer.
public void javascriptclick(String element)
{
WebElement webElement=driver.findElement(By.xpath(element));
JavascriptExecutor js = (JavascriptExecutor) driver;
js.executeScript("arguments[0].click();",webElement);
System.out.println("javascriptclick"+" "+ element);
}
UPDATE: You do not need XVFB to run headless Firefox anymore. Firefox v55+ on Linux and Firefox v56+ on Windows/Mac now supports headless execution.
I added some how-to-use documentation here:
https://developer.mozilla.org/en-US/Firefox/Headless_mode#Selenium_in_Java
I would use python-dpkt. Here is the documentation: http://www.commercialventvac.com/dpkt.html
This is all I know how to do though sorry.
#!/usr/local/bin/python2.7
import dpkt
counter=0
ipcounter=0
tcpcounter=0
udpcounter=0
filename='sampledata.pcap'
for ts, pkt in dpkt.pcap.Reader(open(filename,'r')):
counter+=1
eth=dpkt.ethernet.Ethernet(pkt)
if eth.type!=dpkt.ethernet.ETH_TYPE_IP:
continue
ip=eth.data
ipcounter+=1
if ip.p==dpkt.ip.IP_PROTO_TCP:
tcpcounter+=1
if ip.p==dpkt.ip.IP_PROTO_UDP:
udpcounter+=1
print "Total number of packets in the pcap file: ", counter
print "Total number of ip packets: ", ipcounter
print "Total number of tcp packets: ", tcpcounter
print "Total number of udp packets: ", udpcounter
Update:
This is probably a bit clearer when written with brackets as follows:
hsb.s = (max != 0) ? (255 * delta / max) : 0;
What it does is evaluate the part in the first brackets. If the result is true then the part after the ? and before the : is returned. If it is false, then what follows the : is returned.
$("video").prop('muted', true); //mute
AND
$("video").prop('muted', false); //unmute
See all events here
(side note: use attr
if in jQuery < 1.6)
I think you're looking for something like freopen()
I don't see df.write.saveAsTable(...)
deprecated in Spark 2.0 documentation. It has worked for us on Amazon EMR. We were perfectly able to read data from S3 into a dataframe, process it, create a table from the result and read it with MicroStrategy.
Vinays answer has also worked though.
Nowadays people are just using CSS3 transitions because it's a lot easier than messing with JS, browser support is reasonably good and it's merely cosmetic so it doesn't matter if it doesn't work.
Something like this gets the job done:
a {
color:blue;
/* First we need to help some browsers along for this to work.
Just because a vendor prefix is there, doesn't mean it will
work in a browser made by that vendor either, it's just for
future-proofing purposes I guess. */
-o-transition:.5s;
-ms-transition:.5s;
-moz-transition:.5s;
-webkit-transition:.5s;
/* ...and now for the proper property */
transition:.5s;
}
a:hover { color:red; }
You can also transition specific CSS properties with different timings and easing functions by separating each declaration with a comma, like so:
a {
color:blue; background:white;
-o-transition:color .2s ease-out, background 1s ease-in;
-ms-transition:color .2s ease-out, background 1s ease-in;
-moz-transition:color .2s ease-out, background 1s ease-in;
-webkit-transition:color .2s ease-out, background 1s ease-in;
/* ...and now override with proper CSS property */
transition:color .2s ease-out, background 1s ease-in;
}
a:hover { color:red; background:yellow; }
select min (salary) from Employee where Salary in (Select Top 3 Salary from Employee order by Salary desc)
In you app config file change the url
to localhost/example/public
Then when you want to link to something
<a href="{{ url('page') }}">Some Text</a>
without blade
<a href="<?php echo url('page') ?>">Some Text</a>
For me maven was downloading the dependency but was unable to add it to the classpath. I saw my .classpath of the project,it didnt have any maven-related entry. When I added
<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER"/>
the issue got resolved for me.
For me the most elegant solution is this one:
XMLGregorianCalendar result = DatatypeFactory.newInstance()
.newXMLGregorianCalendar("2014-01-07");
Using Java 8.
Extended example:
XMLGregorianCalendar result = DatatypeFactory.newInstance()
.newXMLGregorianCalendar("2014-01-07");
System.out.println(result.getDay());
System.out.println(result.getMonth());
System.out.println(result.getYear());
This prints out:
7
1
2014
Some advantages to the second option:
You can use this
inside onclick
to reference the anchor itself (doing the same in option 1 will give you window
instead).
You can set the href
to a non-JS compatible URL to support older browsers (or those that have JS disabled); browsers that support JavaScript will execute the function instead (to stay on the page you have to use onclick="return someFunction();"
and return false
from inside the function or onclick="return someFunction(); return false;"
to prevent default action).
I've seen weird stuff happen when using href="javascript:someFunction()"
and the function returns a value; the whole page would get replaced by just that value.
Pitfalls
Inline code:
Runs in document
scope as opposed to code defined inside <script>
tags which runs in window
scope; therefore, symbols may be resolved based on an element's name
or id
attribute, causing the unintended effect of attempting to treat an element as a function.
Is harder to reuse; delicate copy-paste is required to move it from one project to another.
Adds weight to your pages, whereas external code files can be cached by the browser.
Never parallelize an infinite stream with a limit. Here is what happens:
public static void main(String[] args) {
// let's count to 1 in parallel
System.out.println(
IntStream.iterate(0, i -> i + 1)
.parallel()
.skip(1)
.findFirst()
.getAsInt());
}
Result
Exception in thread "main" java.lang.OutOfMemoryError
at ...
at java.base/java.util.stream.IntPipeline.findFirst(IntPipeline.java:528)
at InfiniteTest.main(InfiniteTest.java:24)
Caused by: java.lang.OutOfMemoryError: Java heap space
at java.base/java.util.stream.SpinedBuffer$OfInt.newArray(SpinedBuffer.java:750)
at ...
Same if you use .limit(...)
Explanation here: Java 8, using .parallel in a stream causes OOM error
Similarly, don't use parallel if the stream is ordered and has much more elements than you want to process, e.g.
public static void main(String[] args) {
// let's count to 1 in parallel
System.out.println(
IntStream.range(1, 1000_000_000)
.parallel()
.skip(100)
.findFirst()
.getAsInt());
}
This may run much longer because the parallel threads may work on plenty of number ranges instead of the crucial one 0-100, causing this to take very long time.
ASP.NET MVC doesn't support custom 404 pages very well. Custom controller factory, catch-all route, base controller class with HandleUnknownAction
- argh!
IIS custom error pages are better alternative so far:
<system.webServer>
<httpErrors errorMode="Custom" existingResponse="Replace">
<remove statusCode="404" />
<error statusCode="404" responseMode="ExecuteURL" path="/Error/PageNotFound" />
</httpErrors>
</system.webServer>
public class ErrorController : Controller
{
public ActionResult PageNotFound()
{
Response.StatusCode = 404;
return View();
}
}
A cleaner alternative would be the following:
Due to the fact that every async function is technically a promise
You can add catches to functions when calling them with await
async function a(){
let error;
// log the error on the parent
await b().catch((err)=>console.log('b.failed'))
// change an error variable
await c().catch((err)=>{error=true; console.log(err)})
// return whatever you want
return error ? d() : null;
}
a().catch(()=>console.log('main program failed'))
No need for try catch, as all promises errors are handled, and you have no code errors, you can omit that in the parent!!
Lets say you are working with mongodb, if there is an error you might prefer to handle it in the function calling it than making wrappers, or using try catches.
Use the dec argument to set ","
as the decimal point by adding:
ce <- read.table("file.txt", header = TRUE, dec = ",")
Try to put
doc.fromHTML($('#target').get(0), 15, 15, {
'width': 170,'elementHandlers': specialElementHandlers
});
instead of
doc.fromHTML($('#target').html(), 15, 15, {
'width': 170,'elementHandlers': specialElementHandlers
});
Both LINQ and SQL have their places. Both have their disadvantages and advantages.
Sometimes for complex data retrieval you might need stored procs. And sometimes you may want other people to use your stored proc in Sql Server Management Studio.
Linq to Entities is great for fast CRUD development.
Sure you can build an app using only one or the other. Or you can mix it up. It all comes down to your requirements. But SQL stored procs will no go away any time soon.
Be careful using connector .net, Connector 6.6.5 have a bug, it is not working for inserting tinyint values as identity, for example:
create table person(
Id tinyint unsigned primary key auto_increment,
Name varchar(30)
);
if you try to insert an object like this:
Person p;
p = new Person();
p.Name = 'Oware'
context.Person.Add(p);
context.SaveChanges();
You will get a Null Reference Exception:
Referencia a objeto no establecida como instancia de un objeto.:
en MySql.Data.Entity.ListFragment.WriteSql(StringBuilder sql)
en MySql.Data.Entity.SelectStatement.WriteSql(StringBuilder sql)
en MySql.Data.Entity.InsertStatement.WriteSql(StringBuilder sql)
en MySql.Data.Entity.SqlFragment.ToString()
en MySql.Data.Entity.InsertGenerator.GenerateSQL(DbCommandTree tree)
en MySql.Data.MySqlClient.MySqlProviderServices.CreateDbCommandDefinition(DbProviderManifest providerManifest, DbCommandTree commandTree)
en System.Data.Common.DbProviderServices.CreateCommandDefinition(DbCommandTree commandTree)
en System.Data.Common.DbProviderServices.CreateCommand(DbCommandTree commandTree)
en System.Data.Mapping.Update.Internal.UpdateTranslator.CreateCommand(DbModificationCommandTree commandTree)
en System.Data.Mapping.Update.Internal.DynamicUpdateCommand.CreateCommand(UpdateTranslator translator, Dictionary`2 identifierValues)
en System.Data.Mapping.Update.Internal.DynamicUpdateCommand.Execute(UpdateTranslator translator, EntityConnection connection, Dictionary`2 identifierValues, List`1 generatedValues)
en System.Data.Mapping.Update.Internal.UpdateTranslator.Update(IEntityStateManager stateManager, IEntityAdapter adapter)
en System.Data.EntityClient.EntityAdapter.Update(IEntityStateManager entityCache)
en System.Data.Objects.ObjectContext.SaveChanges(SaveOptions options)
en System.Data.Entity.Internal.InternalContext.SaveChanges()
en System.Data.Entity.Internal.LazyInternalContext.SaveChanges()
en System.Data.Entity.DbContext.SaveChanges()
Until now I haven't found a solution, I had to change my tinyint identity to unsigned int identity, this solved the problem but this is not the right solution.
If you use an older version of Connector.net (I used 6.4.4) you won't have this problem.
If someone knows about the solution, please contact me.
Cheers!
Oware
In Gradle build file, add dependency:
implementation 'com.android.support:multidex:1.0.2'
or
implementation 'com.android.support:multidex:1.0.3'
or
implementation 'com.android.support:multidex:2.0.0'
And then in the "defaultConfig" section, add:
multiDexEnabled true
Under targetSdkVersion
minSdkVersion 17
targetSdkVersion 27
multiDexEnabled true
Now if you encounter this error
Error:Failed to resolve: multidex-instrumentation Open File
You need to change your gradle to 3.0.1
classpath 'com.android.tools.build:gradle:3.0.1'
And put the following code in the file gradle-wrapper.properties
distributionUrl=https://services.gradle.org/distributions/gradle-4.1-all.zip
Finally
add class Applition in project And introduce it to the AndroidManifest Which is extends from MultiDexApplication
public class App extends MultiDexApplication {
@Override
public void onCreate( ) {
super.onCreate( );
}
}
Run the project first to create an error, then clean the project
Finally, Re-launch the project and enjoy it
Try joblib http://pythonhosted.org/joblib/memory.html
from joblib import Memory
memory = Memory(cachedir=cachedir, verbose=0)
@memory.cache
def f(x):
print('Running f(%s)' % x)
return x
Try this:
#include <stdio.h>
#include <unistd.h>
#include <string.h> /* for strncpy */
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <net/if.h>
#include <arpa/inet.h>
int
main()
{
int fd;
struct ifreq ifr;
fd = socket(AF_INET, SOCK_DGRAM, 0);
/* I want to get an IPv4 IP address */
ifr.ifr_addr.sa_family = AF_INET;
/* I want IP address attached to "eth0" */
strncpy(ifr.ifr_name, "eth0", IFNAMSIZ-1);
ioctl(fd, SIOCGIFADDR, &ifr);
close(fd);
/* display result */
printf("%s\n", inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr));
return 0;
}
The code sample is taken from here.
Being a computer nerd and not a maths nerd I'd do:
char buffer[64];
int len = sprintf(buffer, "%d", theNum);
maybe you can try using
SELECT user_name
FROM user_master
WHERE upper(user_name) LIKE '%ME%'
http://lkml.iu.edu/hypermail/linux/kernel/9608/0191.html
Linus Torvalds ([email protected])
Tue, 6 Aug 1996 12:47:31 +0300 (EET DST)
Messages sorted by: [ date ][ thread ][ subject ][ author ]
Next message: Bernd P. Ziller: "Re: Oops in get_hash_table"
Previous message: Linus Torvalds: "Re: I/O request ordering"
On Mon, 5 Aug 1996, Peter P. Eiserloh wrote:
We need to keep a clear the concept of threads. Too many people seem to confuse a thread with a process. The following discussion does not reflect the current state of linux, but rather is an attempt to stay at a high level discussion.
NO!
There is NO reason to think that "threads" and "processes" are separate entities. That's how it's traditionally done, but I personally think it's a major mistake to think that way. The only reason to think that way is historical baggage.
Both threads and processes are really just one thing: a "context of execution". Trying to artificially distinguish different cases is just self-limiting.
A "context of execution", hereby called COE, is just the conglomerate of all the state of that COE. That state includes things like CPU state (registers etc), MMU state (page mappings), permission state (uid, gid) and various "communication states" (open files, signal handlers etc). Traditionally, the difference between a "thread" and a "process" has been mainly that a threads has CPU state (+ possibly some other minimal state), while all the other context comes from the process. However, that's just one way of dividing up the total state of the COE, and there is nothing that says that it's the right way to do it. Limiting yourself to that kind of image is just plain stupid.
The way Linux thinks about this (and the way I want things to work) is that there is no such thing as a "process" or a "thread". There is only the totality of the COE (called "task" by Linux). Different COE's can share parts of their context with each other, and one subset of that sharing is the traditional "thread"/"process" setup, but that should really be seen as ONLY a subset (it's an important subset, but that importance comes not from design, but from standards: we obviusly want to run standards-conforming threads programs on top of Linux too).
In short: do NOT design around the thread/process way of thinking. The kernel should be designed around the COE way of thinking, and then the pthreads library can export the limited pthreads interface to users who want to use that way of looking at COE's.
Just as an example of what becomes possible when you think COE as opposed to thread/process:
- You can do a external "cd" program, something that is traditionally impossible in UNIX and/or process/thread (silly example, but the idea is that you can have these kinds of "modules" that aren't limited to the traditional UNIX/threads setup). Do a:
clone(CLONE_VM|CLONE_FS);
child: execve("external-cd");
/* the "execve()" will disassociate the VM, so the only reason we used CLONE_VM was to make the act of cloning faster */
- You can do "vfork()" naturally (it meeds minimal kernel support, but that support fits the CUA way of thinking perfectly):
clone(CLONE_VM);
child: continue to run, eventually execve()
mother: wait for execve
- you can do external "IO deamons":
clone(CLONE_FILES);
child: open file descriptors etc
mother: use the fd's the child opened and vv.
All of the above work because you aren't tied to the thread/process way of thinking. Think of a web server for example, where the CGI scripts are done as "threads of execution". You can't do that with traditional threads, because traditional threads always have to share the whole address space, so you'd have to link in everything you ever wanted to do in the web server itself (a "thread" can't run another executable).
Thinking of this as a "context of execution" problem instead, your tasks can now chose to execute external programs (= separate the address space from the parent) etc if they want to, or they can for example share everything with the parent except for the file descriptors (so that the sub-"threads" can open lots of files without the parent needing to worry about them: they close automatically when the sub-"thread" exits, and it doesn't use up fd's in the parent).
Think of a threaded "inetd", for example. You want low overhead fork+exec, so with the Linux way you can instead of using a "fork()" you write a multi-threaded inetd where each thread is created with just CLONE_VM (share address space, but don't share file descriptors etc). Then the child can execve if it was a external service (rlogind, for example), or maybe it was one of the internal inetd services (echo, timeofday) in which case it just does it's thing and exits.
You can't do that with "thread"/"process".
Linus
Python prefers English keywords to punctuation. Use not x
, i.e. not os.path.exists(...)
. The same thing goes for &&
and ||
which are and
and or
in Python.
You should have one class-level Random object initiated once in the constructor and reused on each call (this continues the same sequence of pseudo-random numbers). The parameterless constructor already seeds the generator with Environment.TickCount internally.
Assuming ruby interpreter is in your PATH (it should be), you simply run
ruby your_file.rb
JavaScript is case sensitive.
So, if you want to change the font size, you have to go:
span.style.fontSize = "25px";
Leaving a reply (and an answer to the question title), For the future googlers...
You can use .length
to get the length of a string.
var x = 'Mozilla'; var empty = '';
console.log('Mozilla is ' + x.length + ' code units long');
/*"Mozilla is 7 code units long" */
console.log('The empty string has a length of ' + empty.length);
/*"The empty string has a length of 0" */
If you intend to get the length of a textarea
say id="txtarea"
then you can use the following code.
txtarea = document.getElementById('txtarea');
console.log(txtarea.value.length);
You should be able to get away with using this with BMP Unicode symbols. If you want to support "non BMP Symbols" like (), then its an edge case, and you need to find some work around.
str1.toLowerCase().contains(str2.toLowerCase())
for example
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
public class ComboboxExample {
private JFrame frame = new JFrame("Test");
private JComboBox comboBox = new JComboBox();
public ComboboxExample() {
createGui();
}
private void createGui() {
comboBox.addItem("One");
comboBox.addItem("Two");
comboBox.addItem("Three");
JButton button = new JButton("Show Selected");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(frame, "Selected item: " + comboBox.getSelectedItem());
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.requestFocus();
comboBox.requestFocusInWindow();
}
});
}
});
JButton button1 = new JButton("Append Items");
button1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
appendCbItem();
}
});
JButton button2 = new JButton("Reduce Items");
button2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
reduceCbItem();
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridLayout(4, 1));
frame.add(comboBox);
frame.add(button);
frame.add(button1);
frame.add(button2);
frame.setLocation(200, 200);
frame.pack();
frame.setVisible(true);
selectFirstItem();
}
public void appendCbItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.addItem("Four");
comboBox.addItem("Five");
comboBox.addItem("Six");
comboBox.setSelectedItem("Six");
requestCbFocus();
}
});
}
public void reduceCbItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.removeItem("Four");
comboBox.removeItem("Five");
comboBox.removeItem("Six");
selectFirstItem();
}
});
}
public void selectFirstItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.setSelectedIndex(0);
requestCbFocus();
}
});
}
public void requestCbFocus() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.requestFocus();
comboBox.requestFocusInWindow();
}
});
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
ComboboxExample comboboxExample = new ComboboxExample();
}
});
}
}
try this,
mongoimport --db dbName --collection collectionName <fileName.json
Example,
mongoimport --db foo --collection myCollections < /Users/file.json
connected to: *.*.*.*
Sat Mar 2 15:01:08 imported 11 objects
Issue is because of you date format.
I used same JSON with modified date as below and it worked
{jobID:"2597401",
account:"XXXXX",
user:"YYYYY",
pkgT:{"pgi/7.2-5":{libA:["libpgc.so"],flavor:["default"]}},
startEpoch:"1338497979",
runTime:"1022",
execType:"user:binary",
exec:"/share/home/01482/XXXXX/appker/ranger/NPB3.3.1/NPB3.3-MPI/bin/ft.D.64",
numNodes:"4",
sha1:"5a79879235aa31b6a46e73b43879428e2a175db5",
execEpoch:1336766742,
execModify:{"$date" : 1343779200000},
startTime:{"$date" : 1343779200000},
numCores:"64",
sizeT:{bss:"1881400168",text:"239574",data:"22504"}}
hope this helps
A little contribution to the two-bit-fool's answer:
As described on the table on droid phones "orientationchange" event gets fired earlier than "resize" event thus blocking the next resize call (because of the if statement). Width property is still not set.
A workaround though maybe not a perfect one could be to not fire the "orientationchange" event. That can be archived by wrapping "orientationchange" event binding in "if" statement:
if (!navigator.userAgent.match(/android/i))
{
window.addEventListener("orientationchange", checkOrientation, false);
}
Hope it helps
(tests were done on Nexus S)
public void paintComponent(Graphics g) {
super.paintComponent(g);
Graphics2D g2d = (Graphics2D)g;
// Assume x, y, and diameter are instance variables.
Ellipse2D.Double circle = new Ellipse2D.Double(x, y, diameter, diameter);
g2d.fill(circle);
...
}
Here are some docs about paintComponent (link).
You should override that method in your JPanel and do something similar to the code snippet above.
In your ActionListener you should specify x, y, diameter
and call repaint()
.
The simplest way would be to use FOpen or one of FOpen's Wrappers.
$page = file_get_contents("http://www.domain.com/filename");
This does require FOpen which some web hosts disable and some web hosts will allow FOpen, but not allow access to external files. You may want to check where you are going to run the script to see if you have access to External FOpen.
+ this happens because sql sometimes doesn't recognize dd/mm/yyyy format
+ so we should always check if the input string is a valid date or not and the accordingly convert it to mm/dd/yyyy and so , i have shown below how it can be done, i have created a function to rearrange in mm/dd/yyyy from dd/mm/yyyy
select case when isdate('yourdate')=1 then CAST('yourdate' AS datetime)
else (select * from dbo.fn_convertdate(yourdate))
Create function dbo.fn_convertdate( @Stringdate nvarchar(29))
RETURNS @output TABLE(splitdata NVARCHAR(MAX)
)
Begin
Declare @table table(id int identity(1,1), data varchar(255))
Declare @firstpart nvarchar(255)
Declare @tableout table(id int identity(1,1), data varchar(255))
Declare @Secondpart nvarchar(255)
Declare @Thirdpart nvarchar(255)
declare @date datetime
insert into @table
select * from dbo.fnSplitString(@Stringdate,'/')
select @firstpart=data from @table where id=2
select @Secondpart=data from @table where id=1
select @Thirdpart=data from @table where id=3
set @date=@firstpart+'/'+@Secondpart+'/'+@Thirdpart
insert into @output(splitdata) values(
@date)
return
End
I would like to provide another variant that should be both performant and powerful, because
Match
)String
, Integer
, Boolean
etc. (not String
-only)...
'-1 if not found
'https://stackoverflow.com/a/56327647/1915920
Public Function IsInArray( _
item As Variant, _
arr As Variant, _
Optional nthOccurrence As Long = 1 _
) As Long
IsInArray = -1
Dim i As Long: For i = LBound(arr, 1) To UBound(arr, 1)
If arr(i) = item Then
If nthOccurrence > 1 Then
nthOccurrence = nthOccurrence - 1
GoTo continue
End If
IsInArray = i
Exit Function
End If
continue:
Next i
End Function
use it like this:
Sub testInt()
Debug.Print IsInArray(2, Array(1, 2, 3)) '=> 1
End Sub
Sub testString1()
Debug.Print IsInArray("b", Array("a", "b", "c", "a")) '=> 1
End Sub
Sub testString2()
Debug.Print IsInArray("b", Array("a", "b", "c", "b"), 2) '=> 3
End Sub
Sub testBool1()
Debug.Print IsInArray(False, Array(True, False, True)) '=> 1
End Sub
Sub testBool2()
Debug.Print IsInArray(True, Array(True, False, True), 2) '=> 2
End Sub
I have been researching a lot about the EOF signal. In the book on Programming in C by Dennis Ritchie it is first encountered while introducing putchar() and getchar() commands. It basically marks the end of the character string input.
For eg. Let us write a program that seeks two numerical inputs and prints their sum. You'll notice after each numerical input you press Enter to mark the signal that you have completed the iput action. But while working with character strings Enter is read as just another character ['\n': newline character]. To mark the termination of input you enter ^Z(Ctrl + Z on keyboard) in a completely new line and then enter. That signals the next lines of command to get executed.
#include <stdio.h>
int main()
{
char c;
int i = 0;
printf("INPUT:\t");
c = getchar();
while (c != EOF)
{
++i;
c = getchar();
};
printf("NUMBER OF CHARACTERS %d.", i);
return 0;}
The above is the code to count number of characters including '\n'(newline) and '\t'( space) characters. If you don't wanna count the newline characters do this :
#include <stdio.h>
int main()
{
char c;
int i = 0;
printf("INPUT:\t");
c = getchar();
while (c != EOF)
{
if (c != '\n')
{
++i;
}
c = getchar();
};
printf("NUMBER OF CHARACTERS %d.", i);
return 0;}.
NOW THE MAIN THINK HOOW TO GIVE INPUT. IT'S SIMPLE: Write all the story you want then go in a new line and enter ^Z and then enter again.
There is a super() in python also.
Example for how a super class method is called from a sub class method
class Dog(object):
name = ''
moves = []
def __init__(self, name):
self.name = name
def moves_setup(self,x):
self.moves.append('walk')
self.moves.append('run')
self.moves.append(x)
def get_moves(self):
return self.moves
class Superdog(Dog):
#Let's try to append new fly ability to our Superdog
def moves_setup(self):
#Set default moves by calling method of parent class
super().moves_setup("hello world")
self.moves.append('fly')
dog = Superdog('Freddy')
print (dog.name)
dog.moves_setup()
print (dog.get_moves())
This example is similar to the one explained above.However there is one difference that super doesn't have any arguments passed to it.This above code is executable in python 3.4 version.
I can see a number of reasons:
Readability
string s = string.Format("Hey, {0} it is the {1}st day of {2}. I feel {3}!", _name, _day, _month, _feeling);
vs:
string s = "Hey," + _name + " it is the " + _day + "st day of " + _month + ". I feel " + feeling + "!";
Format Specifiers (and this includes the fact you can write custom formatters)
string s = string.Format("Invoice number: {0:0000}", _invoiceNum);
vs:
string s = "Invoice Number = " + ("0000" + _invoiceNum).Substr(..... /*can't even be bothered to type it*/)
String Template Persistence
What if I want to store string templates in the database? With string formatting:
_id _translation
1 Welcome {0} to {1}. Today is {2}.
2 You have {0} products in your basket.
3 Thank-you for your order. Your {0} will arrive in {1} working days.
vs:
_id _translation
1 Welcome
2 to
3 . Today is
4 .
5 You have
6 products in your basket.
7 Someone
8 just shoot
9 the developer.
If you develop for Android KitKat or newer, you could also use a switch statement (see: Android coding with switch (String)). e.g.
switch(yourString)
{
case "john":
//do something for john
case "mary":
//do something for mary
}
This is not exactly answering the question, but since every of the solution given here has some drawbacks, I suggest to try to refactor your code a little bit so you need to return only one value.
Case one.
You need something inside as well as outside of your method. Why not calculate it outside and pass it to the method?
Instead of:
[thingA, thingB] = createThings(...); // just a conceptual syntax of method returning two values, not valid in Java
Try:
thingA = createThingA(...);
thingB = createThingB(thingA, ...);
This should cover most of your needs, since in most situations one value is created before the other and you can split creating them in two methods. The drawback is that method createThingsB
has an extra parameter comparing to createThings
, and possibly you are passing exactly the same list of parameters twice to different methods.
Case two.
Most obvious solution ever and a simplified version of case one. It's not always possible, but maybe both of the values can be created independently of each other?
Instead of:
[thingA, thingB] = createThings(...); // see above
Try:
thingA = createThingA(...);
thingB = createThingB(...);
To make it more useful, these two methods can share some common logic:
public ThingA createThingA(...) {
doCommonThings(); // common logic
// create thing A
}
public ThingB createThingB(...) {
doCommonThings(); // common logic
// create thing B
}
This is a more generic solution, that can be use for any Enum object, so be free of used.
static public List<Object> constFromEnumToList(Class enumType) {
List<Object> nueva = new ArrayList<Object>();
if (enumType.isEnum()) {
try {
Class<?> cls = Class.forName(enumType.getCanonicalName());
Object[] consts = cls.getEnumConstants();
nueva.addAll(Arrays.asList(consts));
} catch (ClassNotFoundException e) {
System.out.println("No se localizo la clase");
}
}
return nueva;
}
Now you must call this way:
constFromEnumToList(MiEnum.class);
This is a sample which demonstrates how to create a watermark textbox in WPF:
<Window x:Class="WaterMarkTextBoxDemo.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WaterMarkTextBoxDemo"
Height="200" Width="400">
<Window.Resources>
<SolidColorBrush x:Key="brushWatermarkBackground" Color="White" />
<SolidColorBrush x:Key="brushWatermarkForeground" Color="LightSteelBlue" />
<SolidColorBrush x:Key="brushWatermarkBorder" Color="Indigo" />
<BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
<local:TextInputToVisibilityConverter x:Key="TextInputToVisibilityConverter" />
<Style x:Key="EntryFieldStyle" TargetType="Grid" >
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="Margin" Value="20,0" />
</Style>
</Window.Resources>
<Grid Background="LightBlue">
<Grid.RowDefinitions>
<RowDefinition />
<RowDefinition />
<RowDefinition />
</Grid.RowDefinitions>
<Grid Grid.Row="0" Background="{StaticResource brushWatermarkBackground}" Style="{StaticResource EntryFieldStyle}" >
<TextBlock Margin="5,2" Text="This prompt dissappears as you type..." Foreground="{StaticResource brushWatermarkForeground}"
Visibility="{Binding ElementName=txtUserEntry, Path=Text.IsEmpty, Converter={StaticResource BooleanToVisibilityConverter}}" />
<TextBox Name="txtUserEntry" Background="Transparent" BorderBrush="{StaticResource brushWatermarkBorder}" />
</Grid>
<Grid Grid.Row="1" Background="{StaticResource brushWatermarkBackground}" Style="{StaticResource EntryFieldStyle}" >
<TextBlock Margin="5,2" Text="This dissappears as the control gets focus..." Foreground="{StaticResource brushWatermarkForeground}" >
<TextBlock.Visibility>
<MultiBinding Converter="{StaticResource TextInputToVisibilityConverter}">
<Binding ElementName="txtUserEntry2" Path="Text.IsEmpty" />
<Binding ElementName="txtUserEntry2" Path="IsFocused" />
</MultiBinding>
</TextBlock.Visibility>
</TextBlock>
<TextBox Name="txtUserEntry2" Background="Transparent" BorderBrush="{StaticResource brushWatermarkBorder}" />
</Grid>
</Grid>
</Window>
TextInputToVisibilityConverter is defined as:
using System;
using System.Windows.Data;
using System.Windows;
namespace WaterMarkTextBoxDemo
{
public class TextInputToVisibilityConverter : IMultiValueConverter
{
public object Convert( object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture )
{
// Always test MultiValueConverter inputs for non-null
// (to avoid crash bugs for views in the designer)
if (values[0] is bool && values[1] is bool)
{
bool hasText = !(bool)values[0];
bool hasFocus = (bool)values[1];
if (hasFocus || hasText)
return Visibility.Collapsed;
}
return Visibility.Visible;
}
public object[] ConvertBack( object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture )
{
throw new NotImplementedException();
}
}
}
Note: This is not my code. I found it here, but I think this is the best approach.
There are three states of button
button
button:hover
button:active
Normal:
.button
{
//your css
}
Active
.button:active
{
//your css
}
Hover
.button:hover
{
//your css
}
SNIPPET:
Use :active
to style the active state of button.
button:active{_x000D_
background-color:red;_x000D_
}
_x000D_
<button>Click Me</button>
_x000D_
If you want to remove or unset all $_SESSION 's then try this
session_destroy();
If you want to remove specific $_SESSION['name'] then try this
session_unset('name');
To create these constraints through the GUI you need the "indexes and keys" dialogue not the check constraints one.
But in your case you just need to run the piece of code you already have. It doesn't need to be entered into the expression dialogue at all.
We don't have any way to add volume in running container, but to achieve this objective you may use the below commands:
Copy files/folders between a container and the local filesystem:
docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH
docker cp [OPTIONS] SRC_PATH CONTAINER:DEST_PATH
For reference see:
Hibernate has a built-in "yes_no" type that would do what you want. It maps to a CHAR(1) column in the database.
Basic mapping: <property name="some_flag" type="yes_no"/>
Annotation mapping (Hibernate extensions):
@Type(type="yes_no")
public boolean getFlag();
In my case it was because I didn't connect to databases yet when first opened solution. click connection manager tab, establish connection to every datasource in that tab, run project
You could do it this way:
-- Notice how STATE got moved inside the condition:
CASE WHEN STATE = 2 AND RetailerProcessType IN (1, 2) THEN '"AUTHORISED"'
WHEN STATE = 1 AND RetailerProcessType = 2 THEN '"PENDING"'
ELSE '"DECLINED"'
END
The reason you can do an AND
here is that you are not checking the CASE
of STATE
, but instead you are CASING Conditions.
The key part here is that the STATE
condition is a part of the WHEN
.
You can use the Y-combinator: (Wikipedia)
// ES5 syntax
var Y = function Y(a) {
return (function (a) {
return a(a);
})(function (b) {
return a(function (a) {
return b(b)(a);
});
});
};
// ES6 syntax
const Y = a=>(a=>a(a))(b=>a(a=>b(b)(a)));
// If the function accepts more than one parameter:
const Y = a=>(a=>a(a))(b=>a((...a)=>b(b)(...a)));
And you can use it as this:
// ES5
var fn = Y(function(fn) {
return function(counter) {
console.log(counter);
if (counter > 0) {
fn(counter - 1);
}
}
});
// ES6
const fn = Y(fn => counter => {
console.log(counter);
if (counter > 0) {
fn(counter - 1);
}
});
This macro adds a hyperlink to the worksheet with the same name, I also modify the range to be more flexible, just change the first cell in the code. Works like a charm
Sub hyper()
Dim cl As Range
Dim nS As String
Set MyRange = Sheets("Sheet1").Range("B16")
Set MyRange = Range(MyRange, MyRange.End(xlDown))
For Each cl In MyRange
nS = cl.Value
cl.Hyperlinks.Add Anchor:=cl, Address:="", SubAddress:="'" & nS & "'" & "!B16", TextToDisplay:=nS
Next
End Sub
You need to understand that a Git repository is not just a tree of directories and files, but also stores a history of those trees - which might contain branches and merges.
When fetching from a repository, you will copy all or some of the branches there to your repository. These are then in your repository as "remote tracking branches", e.g. branches named like remotes/origin/master
or such.
Fetching new commits from the remote repository will not change anything about your local working copy.
Your working copy has normally a commit checked out, called HEAD
. This commit is usually the tip of one of your local branches.
I think you want to update your local branch (or maybe all the local branches?) to the corresponding remote branch, and then check out the latest branch.
To avoid any conflicts with your working copy (which might have local changes), you first clean everything which is not versioned (using git clean
). Then you check out the local branch corresponding to the remote branch you want to update to, and use git reset
to switch it to the fetched remote branch. (git pull
will incorporate all updates of the remote branch in your local one, which might do the same, or create a merge commit if you have local commits.)
(But then you will really lose any local changes - both in working copy and local commits. Make sure that you really want this - otherwise better use a new branch, this saves your local commits. And use git stash
to save changes which are not yet committed.)
Edit: If you have only one local branch and are tracking one remote branch, all you need to do is
git pull
from inside the working directory.
This will fetch the current version of all tracked remote branches and update the current branch (and the working directory) to the current version of the remote branch it is tracking.
function parseIt(){
return new Promise(function(res){
try{
var fs = require('fs');
const dirPath = 'K:\\merge-xml-junit\\xml-results\\master.json';
fs.readFile(dirPath,'utf8',function(err,data){
if(err) throw err;
res(data);
})}
catch(err){
res(err);
}
});
}
async function test(){
jsonData = await parseIt();
var parsedJSON = JSON.parse(jsonData);
var testSuite = parsedJSON['testsuites']['testsuite'];
console.log(testSuite);
}
test();
You can do this by using @ViewChild
for more info check this link
With type selector
child component
@Component({
selector: 'child-cmp',
template: '<p>child</p>'
})
class ChildCmp {
doSomething() {}
}
parent component
@Component({
selector: 'some-cmp',
template: '<child-cmp></child-cmp>',
directives: [ChildCmp]
})
class SomeCmp {
@ViewChild(ChildCmp) child:ChildCmp;
ngAfterViewInit() {
// child is set
this.child.doSomething();
}
}
With string selector
child component
@Component({
selector: 'child-cmp',
template: '<p>child</p>'
})
class ChildCmp {
doSomething() {}
}
parent component
@Component({
selector: 'some-cmp',
template: '<child-cmp #child></child-cmp>',
directives: [ChildCmp]
})
class SomeCmp {
@ViewChild('child') child:ChildCmp;
ngAfterViewInit() {
// child is set
this.child.doSomething();
}
}
I feel this question need a bit more details. My answer is inspired from the Android Programming, The Big Nerd Ranch Guide (2nd edition).
By default, JavaScript is off in WebView. You do not always need to have it on, but for some apps, might do require it.
Loading the URL has to be done after configuring the WebView, so you do that last. Before that, you turn JavaScript on by calling getSettings()
to get an instance of WebSettings and calling WebSettings.setJavaScriptEnabled(true)
. WebSettings is the first of the three ways you can modify your WebView. It has various properties you can set, like the user agent string and text size.
After that, you configure your WebViewClient. WebViewClient is an event interface. By providing your own implementation of WebViewClient, you can respond to rendering events. For example, you could detect when the renderer starts loading an image from a particular URL or decide whether to resubmit a POST request to the server.
WebViewClient has many methods you can override, most of which you will not deal with. However, you do need to replace the default WebViewClient’s implementation of shouldOverrideUrlLoading(WebView, String)
. This method determines what will happen when a new URL is loaded in the WebView, like by pressing a link. If you return true, you are saying, “Do not handle this URL, I am handling it myself.” If you return false, you are saying, “Go ahead and load this URL, WebView, I’m not doing anything with it.”
The default implementation fires an implicit intent with the URL, just like you did earlier. Now, though, this would be a severe problem. The first thing some Web Applications does is redirect you to the mobile version of the website. With the default WebViewClient, that means that you are immediately sent to the user’s default web browser. This is just what you are trying to avoid. The fix is simple – just override the default implementation and return false.
Use WebChromeClient to spruce things up Since you are taking the time to create your own WebView, let’s spruce it up a bit by adding a progress bar and updating the toolbar’s subtitle with the title of the loaded page.
To hook up the ProgressBar, you will use the second callback on WebView: WebChromeClient
.
WebViewClient is an interface for responding to rendering events; WebChromeClient is an event interface for reacting to events that should change elements of chrome around the browser. This includes JavaScript alerts, favicons, and of course updates for loading progress and the title of the current page.
Hook it up in onCreateView(…)
. Using WebChromeClient to spruce things up
Progress updates and title updates each have their own callback method,
onProgressChanged(WebView, int)
and onReceivedTitle(WebView, String)
. The progress you receive from onProgressChanged(WebView, int)
is an integer from 0 to 100. If it is 100, you know
that the page is done loading, so you hide the ProgressBar by setting its visibility to View.GONE
.
Disclaimer: This information was taken from Android Programming: The Big Nerd Ranch Guide with permission from the authors. For more information on this book or to purchase a copy, please visit bignerdranch.com.
You can achieve this by adding border class of bootstrap
like for border left ,you can use border-left
working code
<div class="row">
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right border-bottom" id="one"><h5>Rich Media Ad Production</h5><img src="images/richmedia.png"></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right border-bottom" id="two"><h5>Web Design & Development</h5> <img src="images/web.png" ></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right border-bottom" id="three"><h5>Mobile Apps Development</h5> <img src="images/mobile.png"></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center rightspan border-bottom" id="four"><h5>Creative Design</h5> <img src="images/mobile.png"> </div>
<div class="col-xs-12"><hr></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right" id="five"><h5>Web Analytics</h5> <img src="images/analytics.png"></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right" id="six"><h5>Search Engine Marketing</h5> <img src="images/searchengine.png"></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center leftspan border-right" id="seven"><h5>Mobile Apps Development</h5> <img src="images/socialmedia.png"></div>
<div class="col-xs-6 col-sm-6 col-md-3 text-center rightspan" id="eight"><h5>Quality Assurance</h5> <img src="images/qa.png"></div>
<hr>
</div>
for more refrence al bootstrap classes all classes ,search for border
I propose an alternative method using seaborn
Working code:
import pandas as pd
import seaborn as sns
data=np.random.rand(10,2)*100
df = pd.DataFrame(data, columns=['A', 'B'])
ax= sns.lineplot(data=df, markers= True)
ax.set(xlabel='xlabel', ylabel='ylabel', title='title')
#changing ylables ticks
y_value=['{:,.2f}'.format(x) + '%' for x in ax.get_yticks()]
ax.set_yticklabels(y_value)
when you open the Jenkins panel it will show available package from their latest version. you can download it via wget command in the server.after download the latest package you should take .war backup file.
Eg-: wget http://updates.jenkins-ci.org/download/war/2.205/jenkins.war
Jenkins war file path for Ubuntu - /usr/share/jenkins/
Jenkins war file path for centos - /usr/lib/jenkins/
after taking backup overwrite the war file and restart the jenkins service.
Ubuntu - service jenkins restart , centos - systemctl restart jenkins.service
There's a much simpler way to convert your XmlDocument to a string; use the OuterXml property. The OuterXml property returns a string version of the xml.
public string GetXMLAsString(XmlDocument myxml)
{
return myxml.OuterXml;
}
This piece of vba worked for me:
Sub connect()
Dim Password As String
Dim SQLStr As String
'OMIT Dim Cn statement
Dim Server_Name As String
Dim User_ID As String
Dim Database_Name As String
'OMIT Dim rs statement
Set rs = CreateObject("ADODB.Recordset") 'EBGen-Daily
Server_Name = Range("b2").Value
Database_name = Range("b3").Value ' Name of database
User_ID = Range("b4").Value 'id user or username
Password = Range("b5").Value 'Password
SQLStr = "SELECT * FROM ComputingNotesTable"
Set Cn = CreateObject("ADODB.Connection") 'NEW STATEMENT
Cn.Open "Driver={MySQL ODBC 5.2.2 Driver};Server=" & _
Server_Name & ";Database=" & Database_Name & _
";Uid=" & User_ID & ";Pwd=" & Password & ";"
rs.Open SQLStr, Cn, adOpenStatic
Dim myArray()
myArray = rs.GetRows()
kolumner = UBound(myArray, 1)
rader = UBound(myArray, 2)
For K = 0 To kolumner ' Using For loop data are displayed
Range("a5").Offset(0, K).Value = rs.Fields(K).Name
For R = 0 To rader
Range("A5").Offset(R + 1, K).Value = myArray(K, R)
Next
Next
rs.Close
Set rs = Nothing
Cn.Close
Set Cn = Nothing
End Sub
You can use map
:
List<String> names =
personList.stream()
.map(Person::getName)
.collect(Collectors.toList());
EDIT :
In order to combine the Lists of friend names, you need to use flatMap
:
List<String> friendNames =
personList.stream()
.flatMap(e->e.getFriends().stream())
.collect(Collectors.toList());
Top answer with most upvotes isn't wrong but still the opposite of what I would post. I say it will totally work to start an exe file and you can do this in the context of any user. Logically you just can't have any user interface or ask for user input...
Here is my advice:
Example to start e.g. plink.exe. You could even listen to the output:
var psi = new ProcessStartInfo()
{
FileName = "./Client/plink.exe", //path to your *.exe
Arguments = "-telnet -P 23 127.0.0.1 -l myUsername -raw", //arguments
RedirectStandardError = true,
RedirectStandardOutput = true,
RedirectStandardInput = true,
UseShellExecute = false,
CreateNoWindow = true //no window, you can't show it anyway
};
var p = Process.Start(psi);
I took LocalSystem account which is default and more than Local Service. It worked fine without having to enter login information of a specific user. I didn't even tick the checkbox "Allow service to interact with desktop" which you could if you need higher permissions.
Lastly I just want to say how funny it is that the top answer says quite the opposite of my answer and still both of us are right it's just how you interpret the question :-D. If you now say but you can't with the windows service project type - You CAN but I had this before and installation was sketchy and it was maybe kind of an unintentional hack until I found NSSM.
This has been discussed on SO multiple times. Here are a few links to get you started:
SO: Capturing image from webcam in java?
openCVF applet: http://www.colorfulwolf.com/blog/2011/07/05/accessing-the-webcam-from-inside-a-java-applet/
config: http://ganeshtiwaridotcomdotnp.blogspot.in/2011/12/opencv-javacv-eclipse-project.html
Copypastable version of wearesicc's 5 col solution with bootstrap variables:
.col-xs-15,
.col-sm-15,
.col-md-15,
.col-lg-15 {
position: relative;
min-height: 1px;
padding-right: ($gutter / 2);
padding-left: ($gutter / 2);
}
.col-xs-15 {
width: 20%;
float: left;
}
@media (min-width: $screen-sm) {
.col-sm-15 {
width: 20%;
float: left;
}
}
@media (min-width: $screen-md) {
.col-md-15 {
width: 20%;
float: left;
}
}
@media (min-width: $screen-lg) {
.col-lg-15 {
width: 20%;
float: left;
}
}
If you installed OpenCV using the opencv-python pip package at any point in time, be aware of the following note, taken from https://pypi.python.org/pypi/opencv-python
IMPORTANT NOTE MacOS and Linux wheels have currently some limitations:
- video related functionality is not supported (not compiled with FFmpeg)
- for example
cv2.imshow()
will not work (not compiled with GTK+ 2.x or Carbon support)
Also note that to install from another source, first you must remove the opencv-python package
To change the default setting to display line numbers in vi/vim:
vi ~/.vimrc
then add the following line to the file:
set number
Either we can source ~/.vimrc
or save and quit by :wq
, now future vi/vim sessions will have numbering :)
The trait is same as a class we can use for multiple inheritance purposes and also code reusability.
We can use trait inside the class and also we can use multiple traits in the same class with 'use keyword'.
The interface is using for code reusability same as a trait
the interface is extend multiple interfaces so we can solve the multiple inheritance problems but when we implement the interface then we should create all the methods inside the class. For more info click below link:
http://php.net/manual/en/language.oop5.traits.php http://php.net/manual/en/language.oop5.interfaces.php
We need to specify the INITIAL_CONTEXT_FACTORY, PROVIDER_URL, USERNAME, PASSWORD etc. of JNDI to create an InitialContext
.
In a standalone application, you can specify that as below
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "ldap://ldap.wiz.com:389");
env.put(Context.SECURITY_PRINCIPAL, "joeuser");
env.put(Context.SECURITY_CREDENTIALS, "joepassword");
Context ctx = new InitialContext(env);
But if you are running your code in a Java EE container, these values will be fetched by the container and used to create an InitialContext
as below
System.getProperty(Context.PROVIDER_URL);
and
these values will be set while starting the container as JVM arguments. So if you are running the code in a container, the following will work
InitialContext ctx = new InitialContext();
Run the following Command: npm install --save-dev @angular/cli@latest
After running the above command the console might popup the below message
The Angular CLI configuration format has been changed, and your existing configuration can be updated automatically by running the following command: ng update @angular/cli
Generally, I don't really see a possible way to do this. I've exhausted all of the options that the earlier comments gave you, and they don't seem to work. You could try this:
`private void button1_Click(object sender, EventArgs e)
{
Stream myStream = null;
OpenFileDialog openFileDialog1 = new OpenFileDialog();
openFileDialog1.InitialDirectory = "This PC\\Documents";
openFileDialog1.Filter = "All Files (*.*)|*.*";
openFileDialog1.FilterIndex = 1;
openFileDialog1.RestoreDirectory = true;
openFileDialog1.Title = "Open a file with code";
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
string exeCode = string.Empty;
using (BinaryReader br = new BinaryReader(File.OpenRead(openFileDialog1.FileName))) //Sets a new integer to the BinaryReader
{
br.BaseStream.Seek(0x4D, SeekOrigin.Begin); //The seek is starting from 0x4D
exeCode = Encoding.UTF8.GetString(br.ReadBytes(1000000000)); //Reads as many bytes as it can from the beginning of the .exe file
}
using (BinaryReader br = new BinaryReader(File.OpenRead(openFileDialog1.FileName)))
br.Close(); //Closes the BinaryReader. Without it, opening the file with any other command will result the error "This file is being used by another process".
richTextBox1.Text = exeCode;
}
}`
That's the code for the "Open..." button, but here's the code for the "Save..." button:
` private void button2_Click(object sender, EventArgs e) { SaveFileDialog save = new SaveFileDialog();
save.Filter = "All Files (*.*)|*.*";
save.Title = "Save Your Changes";
save.InitialDirectory = "This PC\\Documents";
save.FilterIndex = 1;
if (save.ShowDialog() == DialogResult.OK)
{
using (BinaryWriter bw = new BinaryWriter(File.OpenWrite(save.FileName))) //Sets a new integer to the BinaryReader
{
bw.BaseStream.Seek(0x4D, SeekOrigin.Begin); //The seek is starting from 0x4D
bw.Write(richTextBox1.Text);
}
}
}`
That's the save button. This works fine, but only shows the '!This cannot be run in DOS-Mode!' - Otherwise, if you can fix this, I don't know what to do.
When adding support for mimetype (as suggested by @ProVega) then it is also best practice to remove the type before adding it - this is to prevent unexpected errors when deploying to servers where support for the type already exists, for example:
<staticContent>
<remove fileExtension=".json" />
<mimeMap fileExtension=".json" mimeType="application/json" />
</staticContent>
I'd be more inclined to do it this way, using (optionally) automatic properties and defaults. You haven't suggested that the two fields are part of a data structure, so that's why I chose this way.
You could have the properties on the class and then assign them the usual way. And obviously they may or may not be required, so that's something else too. It's just that this is such nice syntactic sugar.
class MyClass{
constructor(public Field1:string = "", public Field2:string = "")
{
// other constructor stuff
}
}
var myClass = new MyClass("ASD", "QWE");
alert(myClass.Field1); // voila! statement completion on these properties
Agreed that it is probably best practice to keep Objects as objects and Arrays as arrays. However, if you have an Object with named properties that you are treating as an array, here is how it can be done:
let tempArr = [];
Object.keys(objectArr).forEach( (element) => {
tempArr.push(objectArr[element]);
});
let json = JSON.stringify(tempArr);
Perhaps str.to_s.downcase == 'true'
for completeness. Then nothing can crash even if str
is nil or 0.
In simple format
$curMonth = date('F');
$curYear = date('Y');
$timestamp = strtotime($curMonth.' '.$curYear);
$first_second = date('Y-m-01 00:00:00', $timestamp);
$last_second = date('Y-m-t 12:59:59', $timestamp);
For next month change $curMonth to $curMonth = date('F',strtotime("+1 months"));
Use whichever suits your need.
GridView.count(...)
GridView.count(
crossAxisCount: 2,
children: <Widget>[
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
],
)
GridView.builder(...)
GridView.builder(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),
itemBuilder: (_, index) => FlutterLogo(),
itemCount: 4,
)
GridView(...)
GridView(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),
children: <Widget>[
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
],
)
GridView.custom(...)
GridView.custom(
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(crossAxisCount: 2),
childrenDelegate: SliverChildListDelegate(
[
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
],
),
)
GridView.extent(...)
GridView.extent(
maxCrossAxisExtent: 400,
children: <Widget>[
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
FlutterLogo(),
],
)
Output (same for all):
A JAR file is just a .zip in disguise. The zipped folder contains .class
files.
If you're on macOS:
.class
file with your new .class file.Miscellaneous - Compiling a single .class file, with reference to a original jar, on macOS
javac -classpath originalJar.jar myClass.java
This will create your compiled class called myClass.class.From here, follow the steps above. You can also use Eclipse to compile it, simply reference the original jar by right clicking on the project, 'Build Path' -> 'Add External Archives'. From here you should be able to compile it as a jar, and use the zip technique above to retrieve the class from the jar.
I always seem to find myself landing here only to realize that the title and question are not quite aligned.
If you want a moment date from a string:
const myMomentObject = moment(str, 'YYYY-MM-DD')
From moment documentation:
Instead of modifying the native Date.prototype, Moment.js creates a wrapper for the Date object.
If you instead want a javascript Date object from a string:
const myDate = moment(str, 'YYYY-MM-DD').toDate();
Another similar option that I think Nick briefly alluded to in the comments is to create multiple wrapper jars. I haven't tried it, but I think they could be completely empty other than the manifest file, which should specify the main class to load as well as the inclusion of the MyJar.jar to the classpath.
MyJar1.jar\META-INF\MANIFEST.MF
Manifest-Version: 1.0
Main-Class: com.mycomp.myproj.dir1.MainClass1
Class-Path: MyJar.jar
MyJar2.jar\META-INF\MANIFEST.MF
Manifest-Version: 1.0
Main-Class: com.mycomp.myproj.dir2.MainClass2
Class-Path: MyJar.jar
etc.
Then just run it with java -jar MyJar2.jar
I had the same issue to connect an SQL_server 2008 to an SQL_server 2016 hosted in a remote server. @Domnic answer didn't worked for me straightforward. I write my tweaked solution here as I think it may be useful for someone else.
An extended answer for remote IP db connections:
Step 1: Link servers
EXEC sp_addlinkedserver @server='SRV_NAME',
@srvproduct=N'',
@provider=N'SQLNCLI',
@datasrc=N'aaa.bbb.ccc.ddd';
EXEC sp_addlinkedsrvlogin 'SRV_NAME', 'false', NULL, 'your_remote_db_login_user', 'your_remote_db_login_password'
...where SRV_NAME
is an invented name. We will use it to refer to the remote server from our queries. aaa.bbb.ccc.ddd
is the ip address of the remote server hosting your SQLserver DB.
Step 2: Run your queries For instance:
SELECT * FROM [SRV_NAME].your_remote_db_name.dbo.your_table
...and that's it!
Syntax details: sp_addlinkedserver and sp_addlinkedsrvlogin
You can use virtualenv --clear
. which won't install any packages, then install the ones you want.
It seemed quite hard to find this information, but eventually, I came across this question
You have to look at the 'System' event log, and filter by the WAS source.
Here is more info about the WAS (Windows Process Activation Service)
You can use value_counts()
to get a count series, and get the first row:
import pandas as pd
source = pd.DataFrame({'Country' : ['USA', 'USA', 'Russia','USA'],
'City' : ['New-York', 'New-York', 'Sankt-Petersburg', 'New-York'],
'Short name' : ['NY','New','Spb','NY']})
source.groupby(['Country','City']).agg(lambda x:x.value_counts().index[0])
In case you are wondering about performing other agg functions in the .agg() try this.
# Let's add a new col, account
source['account'] = [1,2,3,3]
source.groupby(['Country','City']).agg(mod = ('Short name', \
lambda x: x.value_counts().index[0]),
avg = ('account', 'mean') \
)
Similar question has been asked in stackoverflow before.
See here: PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
Also see this article: http://shiflett.org/blog/2006/mar/server-name-versus-http-host
Recommended using HTTP_HOST, and falling back on SERVER_NAME only if HTTP_HOST was not set. He said that SERVER_NAME could be unreliable on the server for a variety of reasons, including:
- no DNS support
- misconfigured
- behind load balancing software
You can multiply numpy arrays by scalars and it just works.
>>> import numpy as np
>>> np.array([1, 2, 3]) * 2
array([2, 4, 6])
>>> np.array([[1, 2, 3], [4, 5, 6]]) * 2
array([[ 2, 4, 6],
[ 8, 10, 12]])
This is also a very fast and efficient operation. With your example:
>>> a_1 = np.array([1.0, 2.0, 3.0])
>>> a_2 = np.array([[1., 2.], [3., 4.]])
>>> b = 2.0
>>> a_1 * b
array([2., 4., 6.])
>>> a_2 * b
array([[2., 4.],
[6., 8.]])
This technique is now deprecated.
This used to tell Google how to index the page.
https://developers.google.com/webmasters/ajax-crawling/
This technique has mostly been supplanted by the ability to use the JavaScript History API that was introduced alongside HTML5. For a URL like www.example.com/ajax.html#!key=value
, Google will check the URL www.example.com/ajax.html?_escaped_fragment_=key=value
to fetch a non-AJAX version of the contents.
If you have only these regular shapes, there is a simple procedure as follows :
approxPolyDP
function.Below is my example in Python:
import numpy as np
import cv2
img = cv2.imread('shapes.png')
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
ret,thresh = cv2.threshold(gray,127,255,1)
contours,h = cv2.findContours(thresh,1,2)
for cnt in contours:
approx = cv2.approxPolyDP(cnt,0.01*cv2.arcLength(cnt,True),True)
print len(approx)
if len(approx)==5:
print "pentagon"
cv2.drawContours(img,[cnt],0,255,-1)
elif len(approx)==3:
print "triangle"
cv2.drawContours(img,[cnt],0,(0,255,0),-1)
elif len(approx)==4:
print "square"
cv2.drawContours(img,[cnt],0,(0,0,255),-1)
elif len(approx) == 9:
print "half-circle"
cv2.drawContours(img,[cnt],0,(255,255,0),-1)
elif len(approx) > 15:
print "circle"
cv2.drawContours(img,[cnt],0,(0,255,255),-1)
cv2.imshow('img',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
Below is the output:
Remember, it works only for regular shapes.
Alternatively to find circles, you can use houghcircles
. You can find a tutorial here.
Regarding iOS, OpenCV devs are developing some iOS samples this summer, So visit their site : www.code.opencv.org and contact them.
You can find slides of their tutorial here : http://code.opencv.org/svn/gsoc2012/ios/trunk/doc/CVPR2012_OpenCV4IOS_Tutorial.pdf
In addition to forcats::fct_infreq, mentioned by @HolgerBrandl, there is forcats::fct_rev, which reverses the factor order.
theTable <- data.frame(
Position=
c("Zoalkeeper", "Zoalkeeper", "Defense",
"Defense", "Defense", "Striker"),
Name=c("James", "Frank","Jean",
"Steve","John", "Tim"))
p1 <- ggplot(theTable, aes(x = Position)) + geom_bar()
p2 <- ggplot(theTable, aes(x = fct_infreq(Position))) + geom_bar()
p3 <- ggplot(theTable, aes(x = fct_rev(fct_infreq(Position)))) + geom_bar()
gridExtra::grid.arrange(p1, p2, p3, nrow=3)
Example 1:
RestTemplate restTemplate = new RestTemplate();
// Add the Jackson message converter
restTemplate.getMessageConverters()
.add(new MappingJackson2HttpMessageConverter());
HttpHeaders headers = new HttpHeaders();
headers.setContentType(MediaType.APPLICATION_JSON);
headers.set("Authorization", "Basic XXXXXXXXXXXXXXXX=");
HttpEntity<String> entity = new HttpEntity<String>("parameters", headers);
restTemplate.getInterceptors()
.add(new BasicAuthorizationInterceptor(USERID, PWORD));
String requestJson = getRequetJson(Code, emailAddr, firstName, lastName);
response = restTemplate.postForObject(URL, requestJson, MYObject.class);
Example 2:
RestTemplate restTemplate = new RestTemplate();
String requestJson = getRequetJson(code, emil, name, lastName);
HttpHeaders headers = new HttpHeaders();
String userPass = USERID + ":" + PWORD;
String authHeader =
"Basic " + Base64.getEncoder().encodeToString(userPass.getBytes());
headers.set(HttpHeaders.AUTHORIZATION, authHeader);
headers.setContentType(MediaType.APPLICATION_JSON);
headers.setAccept(Collections.singletonList(MediaType.APPLICATION_JSON));
HttpEntity<String> request = new HttpEntity<String>(requestJson, headers);
ResponseEntity<MyObject> responseEntity;
responseEntity =
this.restTemplate.exchange(URI, HttpMethod.POST, request, Object.class);
responseEntity.getBody()
The getRequestJson
method creates a JSON Object:
private String getRequetJson(String Code, String emailAddr, String name) {
ObjectMapper mapper = new ObjectMapper();
JsonNode rootNode = mapper.createObjectNode();
((ObjectNode) rootNode).put("code", Code);
((ObjectNode) rootNode).put("email", emailAdd);
((ObjectNode) rootNode).put("firstName", name);
String jsonString = null;
try {
jsonString = mapper.writerWithDefaultPrettyPrinter()
.writeValueAsString(rootNode);
}
catch (JsonProcessingException e) {
e.printStackTrace();
}
return jsonString;
}
> grepl("^[^_]+_1",s)
[1] FALSE
> grepl("^[^_]+_2",s)
[1] TRUE
basically, look for everything at the beginning except _
, and then the _2
.
+1 to @Ananda_Mahto for suggesting grepl
instead of grep
.
On iOS 9.2 Profiles
renamed to Device Management
.
Now navigation looks like that:
Settings -> General -> Device Management -> Tap on necessary profile in list -> Trust.
I would recommend you to use background-image instead of default list.
.listStyle {
list-style: none;
background: url(image_path.jpg) no-repeat left center;
padding-left: 30px;
width: 20px;
height: 20px;
}
Or, if you don't want to use background-image as bullet, there is an option to do it with pseudo element:
.liststyle{
list-style: none;
margin: 0;
padding: 0;
}
.liststyle:before {
content: "• ";
color: red; /* or whatever color you prefer */
font-size: 20px;/* or whatever the bullet size you prefer */
}
My case: Seeing the same INFO message.
Centos 6.2 x86_64 Tomcat 6.0.24
This fixed the problem for me:
yum install tomcat-native
boom!
For the first solution proposed by Joe Kington ( .copy_from_bbox & .draw_artist & canvas.blit), I had to capture the backgrounds after the fig.canvas.draw() line, otherwise the background had no effect and I got the same result as you mentioned. If you put it after the fig.show() it still does not work as proposed by Michael Browne.
So just put the background line after the canvas.draw():
[...]
fig.show()
# We need to draw the canvas before we start animating...
fig.canvas.draw()
# Let's capture the background of the figure
backgrounds = [fig.canvas.copy_from_bbox(ax.bbox) for ax in axes]
VERSION NOTE: You must be using SQL Server 2005 or greater with Compatibility Level set to 90 or greater for this solution.
See this MSDN article for the first example of creating a user-defined aggregate function that concatenates a set of string values taken from a column in a table.
My humble recommendation would be to leave out the appended comma so you can use your own ad-hoc delimiter, if any.
Referring to the C# version of Example 1:
change: this.intermediateResult.Append(value.Value).Append(',');
to: this.intermediateResult.Append(value.Value);
And
change: output = this.intermediateResult.ToString(0, this.intermediateResult.Length - 1);
to: output = this.intermediateResult.ToString();
That way when you use your custom aggregate, you can opt to use your own delimiter, or none at all, such as:
SELECT dbo.CONCATENATE(column1 + '|') from table1
NOTE: Be careful about the amount of the data you attempt to process in your aggregate. If you try to concatenate thousands of rows or many very large datatypes you may get a .NET Framework error stating "[t]he buffer is insufficient."
I suggest Freewall
. It is a cross-browser and responsive jQuery plugin to help you create many types of grid layouts: flexible layouts, images layouts, nested grid layouts, metro style layouts, pinterest like layouts ... with nice CSS3 animation effects and call back events. Freewall is all-in-one solution for creating dynamic grid layouts for desktop, mobile, and tablet.
Home page and document: also found here
.
PLOTYY allows two different y-axes. Or you might look into LayerPlot from the File Exchange. I guess I should ask if you've considered using HOLD or just rescaling the data and using regular old plot?
OLD, not what the OP was looking for: SUBPLOT allows you to break a figure window into multiple axes. Then if you want to have only one x-axis showing, or some other customization, you can manipulate each axis independently.
return 0;
put that wherever you want within int main()
and the program will immediately close.
I just figured it out! What I did was I created the batch file like I had it originally:
net use P: "\\server\foldername\foldername"
I then saved it to the desktop and right clicked the properties and checked run as administrator. I then copied the file to C:\Users\"TheUser"\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Where "TheUser" was the desired user I wanted to add it to.
There are already so many good answers on this thread! I am going to post this to help anybody trying to do this automatically! To automatically remove unused imports for the whole project this article was really helpful to me.
In the article the author explains it like this:
Make a stand alone tslint file that has the following in it:
{
"extends": ["tslint-etc"],
"rules": {
"no-unused-declaration": true
}
}
Then run the following command to fix the imports:
tslint --config tslint-imports.json --fix --project .
Consider fixing any other errors it throws. (I did)
Then check the project works by building it:
ng build
or
ng build name_of_project --configuration=production
End: If it builds correctly, you have successfully removed imports automatically!
NOTE: This only removes unnecessary imports. It does not provide the other features that VS Code does when using one of the commands previously mentioned.
Basically in this case, System.Data.OracleClient need access to some of the oracle dll which are not part of .Net. Solutions:
Or Using promises:
const AWS = require('aws-sdk');
AWS.config.update({
accessKeyId: 'accessKeyId',
secretAccessKey: 'secretAccessKey',
region: 'region'
});
let params = {
Bucket: "yourBucketName",
Key: 'someUniqueKey',
Body: 'someFile'
};
try {
let uploadPromise = await new AWS.S3().putObject(params).promise();
console.log("Successfully uploaded data to bucket");
} catch (e) {
console.log("Error uploading data: ", e);
}
Apply the below code where you want to make code to exit application.
System.Windows.Forms.Application.Exit( )
Just in response to Torsten, I wasn't able to call addressof()
on a regular python object. Furthermore, id(a) != addressof(a)
. This is in CPython, don't know about anything else.
>>> from ctypes import c_int, addressof
>>> a = 69
>>> addressof(a)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: invalid type
>>> b = c_int(69)
>>> addressof(b)
4300673472
>>> id(b)
4300673392
I encountered this error during refactoring where I renamed some files/folders and the prexisiting *.g.cs files needed to be re-generated.
For me the right answer was
echo '<pre>' . var_export($var, true) . '</pre>';
Since var_dump($var)
and var_export($var)
do not return a string, you have to use var_export($var, true)
to force var_export
to return the result as a value.
In the examples below the client is the browser and the server is the webserver hosting the website.
Before you can understand these technologies, you have to understand classic HTTP web traffic first.
The server sends an event to the client when there's new information available.
The server and the client can now send each other messages when new data (on either side) is available.
Comet is a collection of techniques prior to HTML5 which use streaming and long-polling to achieve real time applications. Read more on wikipedia or this article.
Now, which one of them should I use for a realtime app (that I need to code). I have been hearing a lot about websockets (with socket.io [a node.js library]) but why not PHP ?
You can use PHP with WebSockets, check out Ratchet.
I would just use a Union
In your second query add the extra column name and add a ''
in all the corresponding locations in the other queries
Example
//reverse order to get the column names
select top 10 personId, '' from Telephone//No Column name assigned
Union
select top 10 personId, loanId from loan
For individual variables you want to make available on a one off basis you can make it part of the command.
sudo http_proxy=$http_proxy wget "http://stackoverflow.com"
Yes you can run JavaFX application on iOS, android, desktop, RaspberryPI (no windows8 mobile yet).
Work in Action :
We did it! JavaFX8 multimedia project on iPad, Android, Windows and Mac!
Ensemble8 Javafx8 Android Demo
My Sample JavaFX application Running on Raspberry Pi
My Sample Application Running on Android
Dev Resources :
Android :
Building and deploying JavaFX Applications on Android
iOS :
NetBeans support for JavaFX for iOS is out!
Develop a JavaFX + iOS app with RoboVM + e(fx)clipse tools in 10 minutes
If you are going to develop serious applications here is some more info
Misc :
At present for JavaFX Oracle priority list is Desktop (Mac,windows,linux) and Embedded (Raspberry Pi, beagle Board etc) .For iOS/android oracle done most of the hardwork and opnesourced javafxports of these platforms as part of OpenJFX ,but there is no JVM from oracle for ios/android.Community is putting all together by filling missing piece(JVM) for ios/android,Community made good progress in running JavaFX on ios (RoboVM) / android(DalvikVM). If you want you can also contribute to the community by sponsoring (Become a RoboVM sponsor) or start developing apps and report issues.
Edit 06/23/2014 :
Johan Vos created a website for javafx ports JavaFX on Mobile and Tablets,check this for updated info ..
Imagine you are the manager of a software company and you just bought a brand new server. Just the hardware.
Think of Dockerfile
as a set of instructions you would tell your system adminstrator what to install on this brand new server. For example:
/var/www
)By contrast, think of docker-compose.yml
as a set of instructions you would tell your system administrator how the server can interact with the rest of the world. For example,
(This is not a precise explanation but good enough to start with.)
The getFilesDir()
somehow didn't work.
Using a method, which returns the entire path and filename gave the desired result. Here is the code:
File file = new File(inputHandle.getImgPath(id));
boolean deleted = file.delete();
Move the data retrieval at the top of the script, and after that use:
<title>Ultan.me - <?php echo htmlspecialchars($title, ENT_QUOTES, 'UTF-8'); ?></title>
If your values are integers, and you use Python 2.7 or newer, you can use collections.Counter
instead of dict
. The most_common
method will give you all items, sorted by the value.
By mid-2016 the Chromium engine (v53) supports just 3 emphasis styles:
Plain text, bold, and super-bold...
<div style="font:normal 400 14px Arial;">Testing</div>
<div style="font:normal 700 14px Arial;">Testing</div>
<div style="font:normal 800 14px Arial;">Testing</div>
you can try below code
public class UploadImage
{
public string ImageFile { get; set; }
public string ImageName { get; set; }
public string ImageDescription { get; set; }
}
<form class="form-horizontal" asp-controller="Image" asp-action="UploadImage" method="POST" enctype="multipart/form-data">
<input type="file" asp-for="ImageFile">
<input type="text" asp-for="ImageName">
<input type="text" asp-for="ImageDescription">
</form>
public class Image
{
private IHostingEnvironment _hostingEnv;
public Image(IHostingEnvironment hostingEnv)
{
_hostingEnv = hostingEnv;
}
[HttpPost]
public async Task<IActionResult> UploadImage(UploadImage model, IFormFile ImageFile)
{
if (ModelState.IsValid)
{
var filename = ContentDispositionHeaderValue.Parse(ImageFile.ContentDisposition).FileName.Trim('"');
var path = Path.Combine(Directory.GetCurrentDirectory(), "wwwroot", "images", ImageFile.FileName);
using (System.IO.Stream stream = new FileStream(path, FileMode.Create))
{
await ImageFile.CopyToAsync(stream);
}
model.ImageFile = filename;
_context.Add(model);
_context.SaveChanges();
}
return RedirectToAction("Index","Home");
}
You can do it via FileInfo or DirectoryInfo:
DirectoryInfo di = new DirectoryInfo("TempDir");
di.Delete(true);
And then recreate the directory
Actually... you can't use a simple regex here, at least not one. You probably need to worry about comments! Someone may write:
<!-- <content> blah </content> -->
You can take two approaches here:
Be careful.
I am also not so sure you can match all new lines at once. @Quartz suggested this one:
<content>([^\n]*\n+)+</content>
This will match any content tags that have a newline character RIGHT BEFORE the closing tag... but I'm not sure what you mean by matching all newlines. Do you want to be able to access all the matched newline characters? If so, your best bet is to grab all content tags, and then search for all the newline chars that are nested in between. Something more like this:
<content>.*</content>
BUT THERE IS ONE CAVEAT: regexes are greedy, so this regex will match the first opening tag to the last closing one. Instead, you HAVE to suppress the regex so it is not greedy. In languages like python, you can do this with the "?" regex symbol.
I hope with this you can see some of the pitfalls and figure out how you want to proceed. You are probably better off using an XML parsing library, then iterating over all the content tags.
I know I may not be offering the best solution, but at least I hope you will see the difficulty in this and why other answers may not be right...
UPDATE 1:
Let me summarize a bit more and add some more detail to my response. I am going to use python's regex syntax because it is what I am more used to (forgive me ahead of time... you may need to escape some characters... comment on my post and I will correct it):
To strip out comments, use this regex: Notice the "?" suppresses the .* to make it non-greedy.
Similarly, to search for content tags, use: .*?
Also, You may be able to try this out, and access each newline character with the match objects groups():
<content>(.*?(\n))+.*?</content>
I know my escaping is off, but it captures the idea. This last example probably won't work, but I think it's your best bet at expressing what you want. My suggestion remains: either grab all the content tags and do it yourself, or use a parsing library.
UPDATE 2:
So here is python code that ought to work. I am still unsure what you mean by "find" all newlines. Do you want the entire lines? Or just to count how many newlines. To get the actual lines, try:
#!/usr/bin/python
import re
def FindContentNewlines(xml_text):
# May want to compile these regexes elsewhere, but I do it here for brevity
comments = re.compile(r"<!--.*?-->", re.DOTALL)
content = re.compile(r"<content>(.*?)</content>", re.DOTALL)
newlines = re.compile(r"^(.*?)$", re.MULTILINE|re.DOTALL)
# strip comments: this actually may not be reliable for "nested comments"
# How does xml handle <!-- <!-- --> -->. I am not sure. But that COULD
# be trouble.
xml_text = re.sub(comments, "", xml_text)
result = []
all_contents = re.findall(content, xml_text)
for c in all_contents:
result.extend(re.findall(newlines, c))
return result
if __name__ == "__main__":
example = """
<!-- This stuff
ought to be omitted
<content>
omitted
</content>
-->
This stuff is good
<content>
<p>
haha!
</p>
</content>
This is not found
"""
print FindContentNewlines(example)
This program prints the result:
['', '<p>', ' haha!', '</p>', '']
The first and last empty strings come from the newline chars immediately preceeding the first <p>
and the one coming right after the </p>
. All in all this (for the most part) does the trick. Experiment with this code and refine it for your needs. Print out stuff in the middle so you can see what the regexes are matching and not matching.
Hope this helps :-).
PS - I didn't have much luck trying out my regex from my first update to capture all the newlines... let me know if you do.
To search all the words with start with "icon-" the following command works perfect. I am using Ack here which is similar to grep but with better options and nice formatting.
ack -oh --type=html "\w*icon-\w*" | sort | uniq
You need to move it to another file (rather than a folder), this can also be used to rename.
Move:
File.Move(@"c:\test\SomeFile.txt", @"c:\test\Test\SomeFile.txt");
Rename:
File.Move(@"c:\test\SomeFile.txt", @"c:\test\SomeFile2.txt");
The reason it says "File already exists" in your example, is because C:\test\Test
tries to create a file Test
without an extension, but cannot do so as a folder already exists with the same name.
If the display of the div is block by default, you can just use .show()
and .hide()
, or even simpler, .toggle()
to toggle between visibility.
You can solve the problem without any new logic by just casting the thing into the number, which prevents the warning and is equivalent to the behavior in PHP 7.0 and below:
$sub_total += ((int)$item['quantity'] * (int)$product['price']);
(The answer from Daniel Schroeder is not equivalent because $sub_total would remain unset if non-numeric values are encountered. For example, if you print out $sub_total, you would get an empty string, which is probably wrong in an invoice. - by casting you make sure that $sub_total is an integer.)
Since everyone else is posting their methods, I figured I'd post the extension method I usually use for this:
EDIT: added int/long variants...and fixed a copypasta typo...
public static class Ext
{
private const long OneKb = 1024;
private const long OneMb = OneKb * 1024;
private const long OneGb = OneMb * 1024;
private const long OneTb = OneGb * 1024;
public static string ToPrettySize(this int value, int decimalPlaces = 0)
{
return ((long)value).ToPrettySize(decimalPlaces);
}
public static string ToPrettySize(this long value, int decimalPlaces = 0)
{
var asTb = Math.Round((double)value / OneTb, decimalPlaces);
var asGb = Math.Round((double)value / OneGb, decimalPlaces);
var asMb = Math.Round((double)value / OneMb, decimalPlaces);
var asKb = Math.Round((double)value / OneKb, decimalPlaces);
string chosenValue = asTb > 1 ? string.Format("{0}Tb",asTb)
: asGb > 1 ? string.Format("{0}Gb",asGb)
: asMb > 1 ? string.Format("{0}Mb",asMb)
: asKb > 1 ? string.Format("{0}Kb",asKb)
: string.Format("{0}B", Math.Round((double)value, decimalPlaces));
return chosenValue;
}
}
In a VBA worksheet function UDF you use Application.Caller to get the range of cell(s) that contain the formula that called the UDF.
Actually, You can achieve this with current typescript:
type Grow<T, A extends Array<T>> = ((x: T, ...xs: A) => void) extends ((...a: infer X) => void) ? X : never;
type GrowToSize<T, A extends Array<T>, N extends number> = { 0: A, 1: GrowToSize<T, Grow<T, A>, N> }[A['length'] extends N ? 0 : 1];
export type FixedArray<T, N extends number> = GrowToSize<T, [], N>;
Examples:
// OK
const fixedArr3: FixedArray<string, 3> = ['a', 'b', 'c'];
// Error:
// Type '[string, string, string]' is not assignable to type '[string, string]'.
// Types of property 'length' are incompatible.
// Type '3' is not assignable to type '2'.ts(2322)
const fixedArr2: FixedArray<string, 2> = ['a', 'b', 'c'];
// Error:
// Property '3' is missing in type '[string, string, string]' but required in type
// '[string, string, string, string]'.ts(2741)
const fixedArr4: FixedArray<string, 4> = ['a', 'b', 'c'];
EDIT (after a long time)
This should handle bigger sizes (as basically it grows array exponentially until we get to closest power of two):
type Shift<A extends Array<any>> = ((...args: A) => void) extends ((...args: [A[0], ...infer R]) => void) ? R : never;
type GrowExpRev<A extends Array<any>, N extends number, P extends Array<Array<any>>> = A['length'] extends N ? A : {
0: GrowExpRev<[...A, ...P[0]], N, P>,
1: GrowExpRev<A, N, Shift<P>>
}[[...A, ...P[0]][N] extends undefined ? 0 : 1];
type GrowExp<A extends Array<any>, N extends number, P extends Array<Array<any>>> = A['length'] extends N ? A : {
0: GrowExp<[...A, ...A], N, [A, ...P]>,
1: GrowExpRev<A, N, P>
}[[...A, ...A][N] extends undefined ? 0 : 1];
export type FixedSizeArray<T, N extends number> = N extends 0 ? [] : N extends 1 ? [T] : GrowExp<[T, T], N, [[T]]>;
While jm-'s answer is the best way to handle this case, for future reference it is possible to access child scopes using a scope's $$childHead, $$childTail, $$nextSibling and $$prevSibling members. These aren't documented so they might change without notice, but they're there if you really need to traverse scopes.
// get $$childHead first and then iterate that scope's $$nextSiblings
for(var cs = scope.$$childHead; cs; cs = cs.$$nextSibling) {
// cs is child scope
}
Right, after a lot of hair tearing I have a compiling system.
Cleaning the .m2 cache was one thing that helped (thanks to Brian)
One of the mistakes I had made was to put 2 versions of each dependency in the parent pom dependencyManagement section - one with <scope>runtime</scope>
and one without - this was to try and make eclipse happy (ie not show up rogue compile errors) as well as being able to run on the command line. This was just complicating matters, so I removed the runtime ones.
Explicitly setting the version of the parent seemed to work also (it's a shame that maven doesn't have more wide-ranging support for using properties like this!)
<parent>
<groupId>com.sw.system4</groupId>
<artifactId>system4-parent</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
I was then getting weird 'failed to collect dependencies for' errors in the child module for all the dependencies, saying it couldn't locate the parent - even though it was set up the same as other modules which did compile.
I finally solved things by compiling from the parent pom instead of trying to compile each module individually. This told me of an error with a relatively simple fix in a different module, which strangely then made it all compile.
In other words, if you get maven errors relating to child module A, it may actually be a problem with unrelated child module Z, so look there. (and delete your cache)
by splitting with newlines.
for line in wallop_of_a_string_with_many_lines.split('\n'):
#do_something..
if you iterate over a string, you are iterating char by char in that string, not by line.
>>>string = 'abc'
>>>for line in string:
print line
a
b
c
My problem: I don't want any style in my HTML content. I want my body directly scrollable without any scrollbar, and only a vertical scroll, working with CSS grids for any screen size.
The box-sizing value impact padding or margin solutions, they works with box-sizing:content-box.
I still need the "-moz-scrollbars-none" directive, and like gdoron and Mr_Green, I had to hide the scrollbar. I tried -moz-transform
and -moz-padding-start
, to impact only Firefox, but there was responsive side effects that needed too much work.
This solution works for HTML body content with "display: grid" style, and it is responsive.
/* Hide HTML and body scroll bar in CSS grid context */
html, body {
position: static; /* Or relative or fixed ... */
box-sizing: content-box; /* Important for hidding scrollbar */
display: grid; /* For CSS grid */
/* Full screen */
width: 100vw;
min-width: 100vw;
max-width: 100vw;
height: 100vh;
min-height: 100vh;
max-height: 100vh;
margin: 0;
padding: 0;
}
html {
-ms-overflow-style: none; /* Internet Explorer 10+ */
overflow: -moz-scrollbars-none; /* Should hide the scroll bar */
}
/* No scroll bar for Safari and Chrome */
html::-webkit-scrollbar,
body::-webkit-scrollbar {
display: none; /* Might be enough */
background: transparent;
visibility: hidden;
width: 0px;
}
/* Firefox only workaround */
@-moz-document url-prefix() {
/* Make HTML with overflow hidden */
html {
overflow: hidden;
}
/* Make body max height auto */
/* Set right scroll bar out the screen */
body {
/* Enable scrolling content */
max-height: auto;
/* 100vw +15px: trick to set the scroll bar out the screen */
width: calc(100vw + 15px);
min-width: calc(100vw + 15px);
max-width: calc(100vw + 15px);
/* Set back the content inside the screen */
padding-right: 15px;
}
}
body {
/* Allow vertical scroll */
overflow-y: scroll;
}
Since the year 2015 kernel patch that adds SwapPss
(https://lore.kernel.org/patchwork/patch/570506/) one can finally get proportional swap count meaning that if a process has swapped a lot and then it forks, both forked processes will be reported to swap 50% each. And if either then forks, each process is counted 33% of the swapped pages so if you count all those swap usages together, you get real swap usage instead of value multiplied by process count.
In short:
(cd /proc; for pid in [0-9]*; do printf "%5s %6s %s\n" "$pid" "$(awk 'BEGIN{sum=0} /SwapPss:/{sum+=$2} END{print sum}' $pid/smaps)" "$(cat $pid/comm)"; done | sort -k2n,2 -k1n,1)
First column is pid, second column is swap usage in KiB and rest of the line is command being executed. Identical swap counts are sorted by pid.
Above may emit lines such as
awk: cmd. line:1: fatal: cannot open file `15407/smaps' for reading (No such file or directory)
which simply means that process with pid 15407 ended between seeing it in the list for /proc/
and reading the process smaps
file. If that matters to you, simply add 2>/dev/null
to the end. Note that you'll potentially lose any other possible diagnostics as well.
In real world example case, this changes other tools reporting ~40 MB swap usage for each apache child running on one server to actual usage of between 7-3630 KB really used per child.
Sooooo, I had this same question. here's my answer: COUNTIFS(sheet1!$A:$A,">="&D1,sheet1!$A:$A,"<="&D2)
you don't need to specify A2:A50, unless there are dates beyond row 50 that you wish to exclude. this is cleaner in the sense that you don't have to go back and adjust the rows as more PO data comes in on sheet1.
also, the reference to D1 and D2 are start and end dates (respectively) for each month. On sheet2, you could have a hidden column that translates April to 4/1/2014, May into 5/1/2014, etc. THen, D1 would reference the cell that contains 4/1/2014, and D2 would reference the cell that contains 5/1/2014.
if you want to sum, it works the same way, except that the first argument is the sum array (column or row) and then the rest of the ranges/arrays and arguments are the same as the countifs formula.
btw-this works in excel AND google sheets. cheers
trim off everything after the last instance of ":"
cat fileListingPathsAndFiles.txt | grep -o '^.*:'
and if you wanted to drop that last ":"
cat file.txt | grep -o '^.*:' | sed 's/:$//'
@kp123: you'd want to replace :
with /
(where the sed colon should be \/
)
Simple solution:
int str_case_ins_cmp(const char* a, const char* b) {
int rc;
while (1) {
rc = tolower((unsigned char)*a) - tolower((unsigned char)*b);
if (rc || !*a) {
break;
}
++a;
++b;
}
return rc;
}
You can do this with .htaccess:
php_value upload_max_filesize 20M
php_value post_max_size 20M
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my);
titolorecuperato = (TextView) findViewById(R.id.textView);
String stitolo = titolorecuperato.getText().toString();
Button btnHome = (Button) findViewById(R.id.button);
btnHome.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
}
});
same thing as Nic007 said before.
You do need to write code inside "onCreate" method. Sorry me too for the indent... (first comment here)
If you have more than one image and you need something generic that doesn't depend on a naming convention.
HTML
<img data-other-src="big-zebra.jpg" src="small-cat.jpg">
<img data-other-src="huge-elephant.jpg" src="white-mouse.jpg">
<img data-other-src="friendly-bear.jpg" src="penguin.jpg">
JavaScript
$('img').bind('mouseenter mouseleave', function() {
$(this).attr({
src: $(this).attr('data-other-src')
, 'data-other-src': $(this).attr('src')
})
});
This has been more than adequately answered, but you may find this useful: The Function Pointer Tutorials. It is a truly comprehensive treatment of the subject in five chapters!
The Console.CancelKeyPress event is used for this. This is how it's used:
public static void Main(string[] args)
{
Console.CancelKeyPress += delegate {
// call methods to clean up
};
while (true) {}
}
When the user presses Ctrl + C the code in the delegate is run and the program exits. This allows you to perform cleanup by calling necessairy methods. Note that no code after the delegate is executed.
There are other situations where this won't cut it. For example, if the program is currently performing important calculations that can't be immediately stopped. In that case, the correct strategy might be to tell the program to exit after the calculation is complete. The following code gives an example of how this can be implemented:
class MainClass
{
private static bool keepRunning = true;
public static void Main(string[] args)
{
Console.CancelKeyPress += delegate(object sender, ConsoleCancelEventArgs e) {
e.Cancel = true;
MainClass.keepRunning = false;
};
while (MainClass.keepRunning) {
// Do your work in here, in small chunks.
// If you literally just want to wait until ctrl-c,
// not doing anything, see the answer using set-reset events.
}
Console.WriteLine("exited gracefully");
}
}
The difference between this code and the first example is that e.Cancel
is set to true, which means the execution continues after the delegate. If run, the program waits for the user to press Ctrl + C. When that happens the keepRunning
variable changes value which causes the while loop to exit. This is a way to make the program exit gracefully.
They take up different amounts of space and they have different ranges of acceptable values.
Here are the sizes and ranges of values for SQL Server, other RDBMSes have similar documentation:
Turns out they all use the same specification (with a few minor exceptions noted below) but support various combinations of those types (Oracle not included because it has just a NUMBER
datatype, see the above link):
| SQL Server MySQL Postgres DB2
---------------------------------------------------
tinyint | X X
smallint | X X X X
mediumint | X
int/integer | X X X X
bigint | X X X X
And they support the same value ranges (with one exception below) and all have the same storage requirements:
| Bytes Range (signed) Range (unsigned)
--------------------------------------------------------------------------------------------
tinyint | 1 byte -128 to 127 0 to 255
smallint | 2 bytes -32768 to 32767 0 to 65535
mediumint | 3 bytes -8388608 to 8388607 0 to 16777215
int/integer | 4 bytes -2147483648 to 2147483647 0 to 4294967295
bigint | 8 bytes -9223372036854775808 to 9223372036854775807 0 to 18446744073709551615
The "unsigned" types are only available in MySQL, and the rest just use the signed ranges, with one notable exception: tinyint
in SQL Server is unsigned and has a value range of 0 to 255
This works with multiple statements:
if condition1 Then stmt1:stmt2 Else if condition2 Then stmt3:stmt4 Else stmt5:stmt6
Or you can split it over multiple lines:
if condition1 Then stmt1:stmt2
Else if condition2 Then stmt3:stmt4
Else stmt5:stmt6
In my case this is the solving of this problem
Make sure you have installed the android SDK. Usually the location of SDK is located to this location
/Users/your-user/Library/Android/sdk
After that cd to that directory.
Once you are in that directory type this command ./platform-tools/adb install your-location-of apk
There are two issues I encountered with the other suggestions
The alternative that doesn't suffer from these issues is to use GetDiskFreeSpaceEx with a UNC path:
function getDiskSpaceInfoUNC($p_UNCpath, $p_unit = 1tb, $p_format = '{0:N1}')
{
# unit, one of --> 1kb, 1mb, 1gb, 1tb, 1pb
$l_typeDefinition = @'
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetDiskFreeSpaceEx(string lpDirectoryName,
out ulong lpFreeBytesAvailable,
out ulong lpTotalNumberOfBytes,
out ulong lpTotalNumberOfFreeBytes);
'@
$l_type = Add-Type -MemberDefinition $l_typeDefinition -Name Win32Utils -Namespace GetDiskFreeSpaceEx -PassThru
$freeBytesAvailable = New-Object System.UInt64 # differs from totalNumberOfFreeBytes when per-user disk quotas are in place
$totalNumberOfBytes = New-Object System.UInt64
$totalNumberOfFreeBytes = New-Object System.UInt64
$l_result = $l_type::GetDiskFreeSpaceEx($p_UNCpath,([ref]$freeBytesAvailable),([ref]$totalNumberOfBytes),([ref]$totalNumberOfFreeBytes))
$totalBytes = if($l_result) { $totalNumberOfBytes /$p_unit } else { '' }
$totalFreeBytes = if($l_result) { $totalNumberOfFreeBytes/$p_unit } else { '' }
New-Object PSObject -Property @{
Success = $l_result
Path = $p_UNCpath
Total = $p_format -f $totalBytes
Free = $p_format -f $totalFreeBytes
}
}
Great then. Let's create a simple function that takes an array and prints our an ordered listview/list inside a div tag.
Step 1: Let's say you have an div with "contentSectionID" id.<div id="contentSectionID"></div>
Step 2: We then create our javascript function that returns a list component and takes in an array:
function createList(spacecrafts){
var listView=document.createElement('ol');
for(var i=0;i<spacecrafts.length;i++)
{
var listViewItem=document.createElement('li');
listViewItem.appendChild(document.createTextNode(spacecrafts[i]));
listView.appendChild(listViewItem);
}
return listView;
}
Step 3: Finally we select our div and create a listview in it:
document.getElementById("contentSectionID").appendChild(createList(myArr));
As mentioned above by @Ricky vue-router automatically applies two active classes, .router-link-active
and .router-link-exact-active
, to the component.
So, to change active link css use:
.router-link-exact-active{
//your desired design when link is clicked
font-weight: 700;
}
A fast approach is to use the following according to ie that you want to focus (check the comments), inside your css files (where margin-top, set whatever css attribute you like):
margin-top: 10px\9; /*It will apply to all ie from 8 and below */
*margin-top: 10px; /*It will apply to ie 7 and below */
_margin-top: 10px; /*It will apply to ie 6 and below*/
A better approach would be to check user agent or a conditional if, in order to avoid the loading of unnecessary CSS in other browsers.
I am not sure it's possible with an "automatic" variable. You can always declare one for yourself and increment it:
$letters = { 'A', 'B', 'C' }
$letters | % {$counter = 0}{...;$counter++}
Or use a for
loop instead...
for ($counter=0; $counter -lt $letters.Length; $counter++){...}
Depending on your needs you might go for the more feature-rich libraries. I tried most/all of the solutions suggested, but what stood out head & shoulders was Html Agility Pack. It is a very forgiving and flexible parser.
This is the commandline for removing plugins in Cordova
cordova plugin remove <pluginid>
For example I ran cordova plugin
and got a list of plugins then I used the id for the plugin to uninstall
cordova plugin remove com.monday.contact-chooser
You can get help in the commandline by typing
cordova help <command>
Here is the example to sort implemented linked list in java without using any standard java libraries.
package SelFrDemo;
class NodeeSort {
Object value;
NodeeSort next;
NodeeSort(Object val) {
value = val;
next = null;
}
public Object getValue() {
return value;
}
public void setValue(Object value) {
this.value = value;
}
public NodeeSort getNext() {
return next;
}
public void setNext(NodeeSort next) {
this.next = next;
}
}
public class SortLinkList {
NodeeSort head;
int size = 0;
NodeeSort add(Object val) {
// TODO Auto-generated method stub
if (head == null) {
NodeeSort nodee = new NodeeSort(val);
head = nodee;
size++;
return head;
}
NodeeSort temp = head;
while (temp.next != null) {
temp = temp.next;
}
NodeeSort newNode = new NodeeSort(val);
temp.setNext(newNode);
newNode.setNext(null);
size++;
return head;
}
NodeeSort sort(NodeeSort nodeSort) {
for (int i = size - 1; i >= 1; i--) {
NodeeSort finalval = nodeSort;
NodeeSort tempNode = nodeSort;
for (int j = 0; j < i; j++) {
int val1 = (int) nodeSort.value;
NodeeSort nextnode = nodeSort.next;
int val2 = (int) nextnode.value;
if (val1 > val2) {
if (nodeSort.next.next != null) {
NodeeSort CurrentNext = nodeSort.next.next;
nextnode.next = nodeSort;
nextnode.next.next = CurrentNext;
if (j == 0) {
finalval = nextnode;
} else
nodeSort = nextnode;
for (int l = 1; l < j; l++) {
tempNode = tempNode.next;
}
if (j != 0) {
tempNode.next = nextnode;
nodeSort = tempNode;
}
} else if (nodeSort.next.next == null) {
nextnode.next = nodeSort;
nextnode.next.next = null;
for (int l = 1; l < j; l++) {
tempNode = tempNode.next;
}
tempNode.next = nextnode;
nextnode = tempNode;
nodeSort = tempNode;
}
} else
nodeSort = tempNode;
nodeSort = finalval;
tempNode = nodeSort;
for (int k = 0; k <= j && j < i - 1; k++) {
nodeSort = nodeSort.next;
}
}
}
return nodeSort;
}
public static void main(String[] args) {
SortLinkList objsort = new SortLinkList();
NodeeSort nl1 = objsort.add(9);
NodeeSort nl2 = objsort.add(71);
NodeeSort nl3 = objsort.add(6);
NodeeSort nl4 = objsort.add(81);
NodeeSort nl5 = objsort.add(2);
NodeeSort NodeSort = nl5;
NodeeSort finalsort = objsort.sort(NodeSort);
while (finalsort != null) {
System.out.println(finalsort.getValue());
finalsort = finalsort.getNext();
}
}
}
for i in count:
means for i in 7:
, which won't work. The bit after the in
should be of an iterable type, not a number. Try this:
for i in range(count):
Most of the solutions are directly using grep
command to find the class. However, it would not give you the package name of the class. Also if the jar is compressed, grep
will not work.
This solution is using jar
command to list the contents of the file and grep
the class you are looking for.
It will print out the class with package name and also the jar file name.
find . -type f -name '*.jar' -print0 | xargs -0 -I '{}' sh -c 'jar tf {} | grep Hello.class && echo {}'
You can also search with your package name like below:
find . -type f -name '*.jar' -print0 | xargs -0 -I '{}' sh -c 'jar tf {} | grep com/mypackage/Hello.class && echo {}'
You only need to exclude UserDetailsServiceAutoConfiguration.
spring:
autoconfigure:
exclude: org.springframework.boot.autoconfigure.security.servlet.UserDetailsServiceAutoConfiguration
You can access the USB drive by its drive letter. To know the drive letter you can run this command:
C:\>wmic logicaldisk where drivetype=2 get deviceid, volumename, description
From here you will get the drive letter (Device ID) of your USB drive.
For example if its F: then run the following command in command prompt to see its contents:
C:\> F:
F:\> dir
If you have some given list, and want to iterate over its items and indices, you can use enumerate()
:
for index, item in enumerate(my_list):
print index, item
If you only need the indices, you can use range()
:
for i in range(len(my_list)):
print i
One thing to note is if you are testing this locally using file:///, it will not work on chrome as the function in the iframe will appear as undefined. However once on a web server it will work.
Why do you want to do that?
However, You can do this:
public void foo(int param1)
{
int param2 = 2;
// rest of code
}
or:
public void foo(int param1, int param2)
{
// rest of code
}
public void foo(int param1)
{
foo(param1, 2);
}
Apache Commons IO provides the FilenameUtils class which gives you a pretty rich set of utility functions for easily obtaining the various components of filenames, although The java.io.File class provides the basics.
Also, you can just set the ViewName:
return View("ViewName");
Full controller example:
public ActionResult SomeAction() {
if (condition)
{
return View("CustomView");
}else{
return View();
}
}
This works on MVC 5.
If you want to fetch + merge, run
git pull
if you want simply to fetch :
git fetch
var pass = new SecureString();
pass.AppendChar('s');
pass.AppendChar('e');
pass.AppendChar('c');
pass.AppendChar('r');
pass.AppendChar('e');
pass.AppendChar('t');
Process.Start("notepad", "admin", pass, "");
Works also with ProcessStartInfo:
var psi = new ProcessStartInfo
{
FileName = "notepad",
UserName = "admin",
Domain = "",
Password = pass,
UseShellExecute = false,
RedirectStandardOutput = true,
RedirectStandardError = true
};
Process.Start(psi);
If another module calls yours and you'd still like to know the location of the main file being run you can use a modification of @Jason's code:
var path = require('path'),
__parentDir = path.dirname(process.mainModule.filename);
fs.readFile(__parentDir + '/foo.bar');
That way you'll get the location of the script actually being run.
private void buttonNextForm(object sender, EventArgs e)
{
NextForm nf = new NextForm();//Object of the form that you want to open
this.hide();//Hide cirrent form.
nf.ShowModel();//Display the next form window
this.Close();//While closing the NextForm, control will come again and will close this form as well
}
You cannot install an unsigned application on a phone. You can only use it to test with an emulator. If you still want to go ahead, you can try self-signing the application.
Also, since you are installing the application from an SD card, I hope you have the necessary permissions set. Do go through stackoverflow.com and look at questions regarding installation of applications from an SD card - there have been many and they have been asked before.
Hope that helps.
In addition to grants, you can try creating synonyms. It will avoid the need for specifying the table owner schema every time.
From the connecting schema:
CREATE SYNONYM pi_int FOR pct.pi_int;
Then you can query pi_int
as:
SELECT * FROM pi_int;
letter = ["a", "b", "c", "d"]
letter.extend(["e", "f", "g", "h"])
letter.extend(("e", "f", "g", "h"))
print(letter)
...
['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'e', 'f', 'g', 'h']
css:
header.sticky {
font-size: 24px;
line-height: 48px;
height: 48px;
background: #efc47D;
text-align: left;
padding-left: 20px;
}
JS:
$(window).scroll(function() {
if ($(this).scrollTop() > 100){
$('header').addClass("sticky");
}
else{
$('header').removeClass("sticky");
}
});
jsPDF is able to use plugins. In order to enable it to print HTML, you have to include certain plugins and therefore have to do the following:
If you want to ignore certain elements, you have to mark them with an ID, which you can then ignore in a special element handler of jsPDF. Therefore your HTML should look like this:
<!DOCTYPE html>
<html>
<body>
<p id="ignorePDF">don't print this to pdf</p>
<div>
<p><font size="3" color="red">print this to pdf</font></p>
</div>
</body>
</html>
Then you use the following JavaScript code to open the created PDF in a PopUp:
var doc = new jsPDF();
var elementHandler = {
'#ignorePDF': function (element, renderer) {
return true;
}
};
var source = window.document.getElementsByTagName("body")[0];
doc.fromHTML(
source,
15,
15,
{
'width': 180,'elementHandlers': elementHandler
});
doc.output("dataurlnewwindow");
For me this created a nice and tidy PDF that only included the line 'print this to pdf'.
Please note that the special element handlers only deal with IDs in the current version, which is also stated in a GitHub Issue. It states:
Because the matching is done against every element in the node tree, my desire was to make it as fast as possible. In that case, it meant "Only element IDs are matched" The element IDs are still done in jQuery style "#id", but it does not mean that all jQuery selectors are supported.
Therefore replacing '#ignorePDF' with class selectors like '.ignorePDF' did not work for me. Instead you will have to add the same handler for each and every element, which you want to ignore like:
var elementHandler = {
'#ignoreElement': function (element, renderer) {
return true;
},
'#anotherIdToBeIgnored': function (element, renderer) {
return true;
}
};
From the examples it is also stated that it is possible to select tags like 'a' or 'li'. That might be a little bit to unrestrictive for the most usecases though:
We support special element handlers. Register them with jQuery-style ID selector for either ID or node name. ("#iAmID", "div", "span" etc.) There is no support for any other type of selectors (class, of compound) at this time.
One very important thing to add is that you lose all your style information (CSS). Luckily jsPDF is able to nicely format h1, h2, h3 etc., which was enough for my purposes. Additionally it will only print text within text nodes, which means that it will not print the values of textareas and the like. Example:
<body>
<ul>
<!-- This is printed as the element contains a textnode -->
<li>Print me!</li>
</ul>
<div>
<!-- This is not printed because jsPDF doesn't deal with the value attribute -->
<input type="textarea" value="Please print me, too!">
</div>
</body>
In case you want to use the class and pseudo-class:
.simple-control
is your css class
:disabled
is pseudo class
select.simple-control:disabled{
/*For FireFox*/
-webkit-appearance: none;
/*For Chrome*/
-moz-appearance: none;
}
/*For IE10+*/
select:disabled.simple-control::-ms-expand {
display: none;
}
You can not "attach" a SASS/SCSS file to an HTML document.
SASS/SCSS is a CSS preprocessor that runs on the server and compiles to CSS code that your browser understands.
There are client-side alternatives to SASS that can be compiled in the browser using javascript such as LESS CSS, though I advise you compile to CSS for production use.
It's as simple as adding 2 lines of code to your HTML file.
<link rel="stylesheet/less" type="text/css" href="styles.less" />
<script src="less.js" type="text/javascript"></script>