If you paste

A.do() {
  if (condition1) {
   X.doSomething
  } else if (condition2) {
   Y.doSomethingElse
  } else {
   donotDoAnything
  }
}

onto https://www.zenuml.com. It will generate a diagram for you.

We can encode two numbers into one in O(1) space and O(N) time. Suppose you want to encode numbers in the range 0-9 into one, eg. 5 and 6. How to do it? Simple,

  5*10 + 6 = 56. 
   
    5 can be obtained by doing 56/10 
    6 can be obtained by doing 56%10.

Even for two digit integer let's say 56 and 45, 56*100 + 45 = 5645. We can again obtain individual numbers by doing 5645/100 and 5645%100

But for an array of size n, eg. a = {4,0,2,1,3}, let's say we want to encode 3 and 4, so:

 3 * 5 + 4 = 19               OR         3 + 5 * 4 = 23
 3 :- 19 / 5 = 3                         3 :- 23 % 5 = 3
 4 :- 19 % 5 = 4                         4 :- 23 / 5 = 4

Upon generalising it, we get

    x * n + y     OR       x + n * y

But we also need to take care of the value we changed; so it ends up as

    (x%n)*n + y  OR x + n*(y%n)

You can obtain each number individually by dividing and finding mod of the resultant number.

Just subtract:

var a = new Date();
alert("Wait a few seconds, then click OK");

var b = new Date();
var difference = (b - a) / 1000;

alert("You waited: " + difference + " seconds");

You can't, at least not directly. That would be a nasty security risk.

While you can specify a Domain attribute, the specification says "The user agent will reject cookies unless the Domain attribute specifies a scope for the cookie that would include the origin server."

Since the origin server is a.com and that does not include b.com, it can't be set.

You would need to get b.com to set the cookie instead. You could do this via (for example) HTTP redirects to b.com and back.

Yor $.post has no data. You need to pass the form data. You can use serialize() to post the form data. Try this

$("#post-btn").click(function(){
    $.post("process.php", $('#reg-form').serialize() ,function(data){
        alert(data);
    });
});

I don't have enough reputation to comment, but if you like working with QT, they have their own version.

    #include <QtCore/qmath.h>
    qPow(x, y); // returns x raised to the y power.

Or if you aren't using QT, cmath has basically the same thing.

    #include <cmath>
    double x = 5, y = 7; //As an example, 5 ^ 7 = 78125
    pow(x, y); //Should return this: 78125

Gradients?

div {
  width: 400px; height: 400px;
  background: radial-gradient(ellipse at center,  #f73134 0%,#ff0000 47%,#ff0000 47%,#23bc2b 47%,#23bc2b 48%);
}

https://fiddle.jshell.net/su5oyd4L/

I had to run this for a column introduced in the later stages of a product, on 10+ tables. So wrote this quick untidy script to generate the alter command for all 'relevant' tables.

SET @NeighboringColumn = '<YOUR COLUMN SHOULD COME AFTER THIS COLUMN>';

SELECT CONCAT("ALTER TABLE `",t.TABLE_NAME,"` CHANGE COLUMN `",COLUMN_NAME,"` 
`",COLUMN_NAME,"` ", c.DATA_TYPE, CASE WHEN c.CHARACTER_MAXIMUM_LENGTH IS NOT 
NULL THEN CONCAT("(", c.CHARACTER_MAXIMUM_LENGTH, ")") ELSE "" END ,"  AFTER 
`",@NeighboringColumn,"`;")
FROM information_schema.COLUMNS c, information_schema.TABLES t
WHERE c.TABLE_SCHEMA = '<YOUR SCHEMA NAME>'
AND c.COLUMN_NAME = '<COLUMN TO MOVE>'
AND c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
AND t.TABLE_TYPE = 'BASE TABLE'
AND @NeighboringColumn IN (SELECT COLUMN_NAME 
    FROM information_schema.COLUMNS c2 
    WHERE c2.TABLE_NAME = t.TABLE_NAME);

I quite like using INFORMATION_SCHEMA for this as I get the DB name for free. That and - realising from @KM post that multiple results sets insert nicely - I came up with:

select top 0 * 
    into #temp
    from INFORMATION_SCHEMA.TABLES

insert into #temp
    exec sp_msforeachdb 'select * from [?].INFORMATION_SCHEMA.TABLES'

select * from #temp

drop table #temp

The official answer from Facebook (http://developers.facebook.com/bugs/282710765082535):

Mikhail,

The facebook android sdk no longer supports android 1.5 and 1.6. Please upgrade to the next api version.

Good luck with your implementation.

Your code may work without document.ready() just be sure that your script is after the #clicker. Checkout this demo: http://jsbin.com/aPAsaZo/1/

The idea in the ready concept. If you sure that your script is the latest thing in your page or it is after the affected element, it will work.

<!DOCTYPE html>
<html>
<head>


<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
  <script src="https://code.jquery.com/jquery-latest.min.js"
        type="text/javascript"></script>
  <a href="#" id="clicker" value="Click Me!" >Click Me</a>
  <script type="text/javascript">

        $("#clicker").click(function () {
            alert("Hello!");
            $(".hide_div").hide();

        });


</script>

</body>
</html>

Notice: In the jsbin demo replace http with https there in the code, or use this variant Demo

Try wkhtmltopdf with either one of the following wrappers

django-wkhtmltopdf or python-pdfkit

This worked great for me,supports javascript and css or anything for that matter which a webkit browser supports.

For more detailed tutorial please see this blog post

Guava almost always has what you need.

ThreadFactory namedThreadFactory = 
  new ThreadFactoryBuilder().setNameFormat("my-sad-thread-%d").build()

and pass it off to your ExecutorService.

Just because it's not on here Nvidia has a nice package that simplifies getting it set up and running with an added bonus of supporting 3D acceleration on capable TEGRA enabled devices.

You may find it here.

• Saved the "vs_professional.exe" in my user Download directory, didn't work in any other disk or path.
• Installed the certificate, without the reboot.
• Executed the customized (2 languages and some workloads) command from administrative Command Prompt window targetting an offline root folder on a secondary disk "E:\vs2017offline".

Never thought MS could distribute this way, I understand that people downloading Visual Studio should have advanced knowledge of computers and OS but this is like a jump in time to 30 years back.

Works for me:

std::wstring CStringToWString(const CString& s)
{
    std::string s2;
    s2 = std::string((LPCTSTR)s);
    return std::wstring(s2.begin(),s2.end());
}

CString WStringToCString(std::wstring s)
{
    std::string s2;
    s2 = std::string(s.begin(),s.end());
    return s2.c_str();
}

Without jQuery:

document.getElementById('file').onchange = function(){

  var file = this.files[0];

  var reader = new FileReader();
  reader.onload = function(progressEvent){
    // Entire file
    console.log(this.result);

    // By lines
    var lines = this.result.split('\n');
    for(var line = 0; line < lines.length; line++){
      console.log(lines[line]);
    }
  };
  reader.readAsText(file);
};

HTML:

<input type="file" name="file" id="file">

Remember to put your javascript code after the file field is rendered.

Starting in iOS 6, you can use

-tableView:shouldHighlightRowAtIndexPath:

If you return NO, it disables both the selection highlighting and the storyboard triggered segues connected to that cell.

The method is called when a touch comes down on a row. Returning NO to that message halts the selection process and does not cause the currently selected row to lose its selected look while the touch is down.

UITableViewDelegate Protocol Reference

import os
import os.path
import shutil

You find your current directory:

d = os.getcwd() #Gets the current working directory

Then you change one directory up:

os.chdir("..") #Go up one directory from working directory

Then you can get a tupple/list of all the directories, for one directory up:

o = [os.path.join(d,o) for o in os.listdir(d) if os.path.isdir(os.path.join(d,o))] # Gets all directories in the folder as a tuple

Then you can search the tuple for the directory you want and open the file in that directory:

for item in o:
    if os.path.exists(item + '\\testfile.txt'):
    file = item + '\\testfile.txt'

Then you can do stuf with the full file path 'file'

It won't be exactly refering to the given problem, but I wanna share my mistake here, maybe some1 will make simmilar one and will also land with his/her problem here:

Ive got Unexpected token ILLEGAL error because I named a function with a number as 1st char.

It was 3x3check(). Changing it to check3x3() solved my problem.

I had this issue happening often. I found SQL Server Agent service was not running. Once I started the service manually, it got fixed. Double check if the service is running or not:

1. Run prompt, type services.msc and hit enter
2. Find the service name - SQL Server Agent(Instance Name)

If SQL Server Agent is not running, double-click the service to open properties window. Then click on Start button. Hope it will help someone.

Try to use

https://www.youtube.com/embed/YOUR_VIDEO_CODE

You can find all embeded code in 'Embeded Code' section and that looks like this

<iframe width="560" height="315"  src="https://www.youtube.com/embed/YOUR_VIDEO_CODE" frameborder="0" allowfullscreen></iframe>

Let's say you have two models, one named Person and another one named Companies.

By definition, one person can create more than one company.

Considering a company can have one and only one person, we want that when a person is deleted that all the companies associated with that person also be deleted.

So, we start by creating a Person model, like this

class Person(models.Model):
    id = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=20)

    def __str__(self):
        return self.id+self.name

Then, the Companies model can look like this

class Companies(models.Model):
    title = models.CharField(max_length=20)
    description=models.CharField(max_length=10)
    person= models.ForeignKey(Person,related_name='persons',on_delete=models.CASCADE)

Notice the usage of on_delete=models.CASCADE in the model Companies. That is to delete all companies when the person that owns it (instance of class Person) is deleted.

If you need to get the first img that's down exactly one level, you can do

$(this).children("img:first")

I think what you're looking for is an IP Geolocation database or service provider. There are many out there and some are free (get what you pay for).

Although I haven't used this service before, it claims to be in real-time. https://kickfire.com/kf-api

Here's another IP geo location API from Abstract API - https://www.abstractapi.com/ip-geolocation-api

But just do a google search on IP geo and you'll get more results than you need.

USE [TSQL2012]
GO

/****** Object:  Table [dbo].[Table_1]    Script Date: 11/22/2015 12:45:47 PM ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[Table_1](
    [seq] [bigint] IDENTITY(1,1) NOT NULL,
    [ID] [int] NOT NULL,
    [name] [nvarchar](50) NULL,
    [cat] [nvarchar](50) NULL,
 CONSTRAINT [PK_Table_1] PRIMARY KEY CLUSTERED 
(
    [ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY],
 CONSTRAINT [IX_Table_1] UNIQUE NONCLUSTERED 
(
    [name] ASC,
    [cat] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]

GO

I see no mention here of serial versioning or backcompat, so I will post my solution which I've been using for a bit. I probably have a lot more to learn from, specifically Java and Javascript are probably more mature than me here but here goes

https://gist.github.com/andy-d/b7878d0044a4242c0498ed6d67fd50fe

Use the name of the id with the getElementById, no # sign before it. Then you can get the span child nodes using getElementsByTagName, and loop through them to find the one with the right class:

var doc = document.getElementById('test');

var c = doc.getElementsByTagName('span');

var e = null;
for (var i = 0; i < c.length; i++) {
    if (c[i].className == '4') {
        e = c[i];
        break;
    }
}

if (e != null) {
    alert(e.innerHTML);
}

Demo: http://jsfiddle.net/Guffa/xB62U/

Use the Integer class' static toString() method.

int sdRate=5;
text_Rate.setText(Integer.toString(sdRate));

I find that code gets messy fast when C# code is used to modify CSS values. Perhaps a better approach is for your code to dynamically set the class attribute on the div tag and then store any specific CSS settings in the style sheet.

That might not work for your situation, but its a decent default position if you need to change the style on the fly in server side code.

Assuming your data frame is named d,

d[order(as.Date(d$V3, format="%d/%m/%Y")),]

Read my blog post, Sorting a data frame by the contents of a column, if that doesn't make sense.

select  ISNULL(CONVERT(VARCHAR(23), WorkingDate,121),'') from uv_Employee

#!/usr/bin/python
file=open("D:\\zzzz\\names2.txt","r+")
wordcount={}
for word in file.read().split():
    if word not in wordcount:
        wordcount[word] = 1
    else:
        wordcount[word] += 1
for k,v in wordcount.items():
    print k, v

Fix this by moving my jdk folder to other disk

I agree with Rup. I guess the main reason is to avoid confusion on relative paths. I think wordpress can work from scratch with relative paths but the problem might come when using multiple plugins, how the theme is configured etc.

I've once used this plugin for relative paths, when working on testing servers:

Root Relative URLs
Converts all URLs to root-relative URLs for hosting the same site on multiple IPs, easier production migration and better mobile device testing.

The below solution worked for me.

1. In the parameter tab of your dataset properties click on the expression icon (!http://chittagongit.com//images/fx-icon/fx-icon-16.jpg [fx symbol]) beside the parameter you need to allow comma delimited entry for.

2. In the expression window that appears, use the Split function (Common Functions -> Text). Example shown below:

=Split(Parameters!ParameterName.Value,",")

Here’s the modern answer (valid from 2014 and on). The accepted answer was a very fine answer in 2011. These days I recommend no one uses the Date, DateFormat and SimpleDateFormat classes. It all goes more natural with the modern Java date and time API.

To get a date-time object from your millis:

    ZonedDateTime dateTime = Instant.ofEpochMilli(millis)
            .atZone(ZoneId.of("Australia/Sydney"));

If millis equals 1318388699000L, this gives you 2011-10-12T14:04:59+11:00[Australia/Sydney]. Should the code in some strange way end up on a JVM that doesn’t know Australia/Sydney time zone, you can be sure to be notified through an exception.

If you want the date-time in your string format for presentation:

String formatted = dateTime.format(DateTimeFormatter.ofPattern("dd/MM/yyyy HH:mm:ss"));

Result:

12/10/2011 14:04:59

PS I don’t know what you mean by “The above doesn't work.” On my computer your code in the question too prints 12/10/2011 14:04:59.

All the answers here are better, but just in case... There is a way of getting 10 last added records. (thou this is quite unreliable :) ) still you can do something like

SELECT * FROM table LIMIT 10 OFFSET N-10

N - should be the total amount of rows in the table (SELECT count(*) FROM table). You can put it in a single query using prepared queries but I'll not get into that.

You need to compile the bibtex file.

Suppose you have article.tex and article.bib. You need to run:

• latex article.tex (this will generate a document with question marks in place of unknown references)
• bibtex article (this will parse all the .bib files that were included in the article and generate metainformation regarding references)
• latex article.tex (this will generate document with all the references in the correct places)
• latex article.tex (just in case if adding references broke page numbering somewhere)

Just a note that in Java 9 and above, the naming convention is different. System.getProperty("java.version") returns "9" rather than "1.9".

You should try using Type.IsAssignableFrom instead.

Select / Option elements are rendered by the OS, not HTML. You cannot change the style for these elements.

You can use Java 8 Stream API.
You can create a Stream of objects and collect them as a List.

private List<String> symbolsPresent = Stream.of("ONE", "TWO", "THREE", "FOUR")
    .collect(Collectors.toList());

Map <Integer, Point2D.Double> hm = new HashMap<Integer, Point2D>();
hm.put(1, new Point2D.Double(50, 50));

Thanks for help. This is the solution: I created the subview and i add a gesture to remove it

@IBAction func infoView(sender: UIButton) {
    var testView: UIView = UIView(frame: CGRectMake(0, 0, 320, 568))
    testView.backgroundColor = UIColor.blueColor()
    testView.alpha = 0.5
    testView.tag = 100
    testView.userInteractionEnabled = true
    self.view.addSubview(testView)

    let aSelector : Selector = "removeSubview"
    let tapGesture = UITapGestureRecognizer(target:self, action: aSelector)
    testView.addGestureRecognizer(tapGesture)
}

func removeSubview(){
    println("Start remove sibview")
    if let viewWithTag = self.view.viewWithTag(100) {
        viewWithTag.removeFromSuperview()
    }else{
        println("No!")
    }
}

Update:

Swift 3+

@IBAction func infoView(sender: UIButton) {
    let testView: UIView = UIView(frame: CGRect(x: 0, y: 0, width: 320, height: 568))
    testView.backgroundColor = .blue
    testView.alpha = 0.5
    testView.tag = 100
    testView.isUserInteractionEnabled = true
    self.view.addSubview(testView)

    let aSelector : Selector = #selector(GasMapViewController.removeSubview)
    let tapGesture = UITapGestureRecognizer(target:self, action: aSelector)
    testView.addGestureRecognizer(tapGesture)
}

func removeSubview(){
    print("Start remove sibview")
    if let viewWithTag = self.view.viewWithTag(100) {
        viewWithTag.removeFromSuperview()
    }else{
        print("No!")
    }
}

I suppose you want to commit the changes to one branch and then make those changes visible in the other branch. In git you should have no changes on top of HEAD when changing branches.

You commit only the changed files by:

git commit [some files]

Or if you are sure that you have a clean staging area you can

git add [some files]       # add [some files] to staging area
git add [some more files]  # add [some more files] to staging area
git commit                 # commit [some files] and [some more files]

If you want to make that commit available on both branches you do

git stash                     # remove all changes from HEAD and save them somewhere else
git checkout <other-project>  # change branches
git cherry-pick <commit-id>   # pick a commit from ANY branch and apply it to the current
git checkout <first-project>  # change to the other branch
git stash pop                 # restore all changes again

Use std::cout, since cout is defined within the std namespace. Alternatively, add a using std::cout; directive.

I would prefer to shelve changes instead of stashing them if I am not sharing my changes elsewhere.

Stashing is a git feature and doesn't give you the option to select specific files or changes inside a file. Shelving can do that but this is an IDE-specific feature, not a git feature:

As you can see I am able to choose to specify which files/lines to include on my shelve. Note that I can't do that with stashing.

Beware using shelves in the IDE may limit the portability of your patches because those changes are not stored in a .git folder.

Some helpful links:

• https://www.jetbrains.com/help/idea/shelving-and-unshelving-changes.html
• https://www.jetbrains.com/help/idea/work-on-several-features-simultaneously.html

A suggestion - when using cross join please take care of the duplicate scenarios. For example in your case:

• Table 1 may have >1 columns as part of primary keys(say table1_id, id2, id3, table2_id)
• Table 2 may have >1 columns as part of primary keys(say table2_id, id3, id4)

since there are common keys between these two tables (i.e. foreign keys in one/other) - we will end up with duplicate results. hence using the following form is good:

WITH data_mined_table (col1, col2, col3, etc....) AS
SELECT DISTINCT col1, col2, col3, blabla
FROM table_1 (NOLOCK), table_2(NOLOCK))
SELECT * from data_mined WHERE data_mined_table.col1 = :my_param_value

Since you're using GNUmake, use a pattern rule for compiling object files:

$(OBJDIR)/%.o: %.c
    $(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<

If you tried profiling, and then it didn't work, and now you cannot build, go into your Target pane (via the Project Icon), Switch to the Build Settings tab, search for PROFILE - and set CLANG_USE_OPTIMIZATION_PROFILE to "No".

Another approach is to use ls when reading the file list within a directory so as to give you what you want, i.e. "just the file name/s". As opposed to reading the full file path and then extracting the "file name" component in the body of the for loop.

Example below that follows your original:

for filename in $(ls /home/user/)
do
  echo $filename
done;

If you are running the script in the same directory as the files, then it simply becomes:

for filename in $(ls)
do
  echo $filename
done;

So within the render method comments are allowed but in order to use them within JSX, you have to wrap them in braces and use multi-line style comments.

<div className="dropdown">
    {/* whenClicked is a property not an event, per se. */}
    <Button whenClicked={this.handleClick} className="btn-default" title={this.props.title} subTitleClassName="caret"></Button>
    <UnorderedList />
</div>

You can read more about how comments work in JSX here

A servlet container is definitely the way to go. If Tomcat or Jetty are too heavyweight for you, consider Winstone or TTiny.

You can fix this by simple two steps:

Add your componnet(HomeComponent) to declarations array entryComponents array.

As this component is accesses neither throw selector nor router, adding this to entryComponnets array is important

see how to do:

@NgModule({
  declarations: [
    AppComponent,
    ....
    HomeComponent
  ],
  imports: [
    BrowserModule,
    HttpModule,
    ...

  ],
  providers: [],
  bootstrap: [AppComponent],
  entryComponents: [HomeComponent]
})
export class AppModule {} 

The answers above are correct, and what I'd consider the "best" answers. But just to be as complete as possible, you can also do this directly in CF using queryAddColumn.

See http://www.cfquickdocs.com/cf9/#queryaddcolumn

Again, it's more efficient to do it at the database level... but it's good to be aware of as many alternatives as possible (IMO, of course) :)

If you're wanting this as a script, the following Bash script should do what you want (plus tell you when the file already exists):

#!/bin/bash
if [ -e $1 ]; then
  echo "File $1 already exists!"
else
  echo >> $1
fi

If you don't want the "already exists" message, you can use:

#!/bin/bash
if [ ! -e $1 ]; then
  echo >> $1
fi

Edit about using:

Save whichever version with a name you like, let's say "create_file" (quotes mine, you don't want them in the file name). Then, to make the file executatble, at a command prompt do:

chmod u+x create_file

Put the file in a directory in your path, then use it with:

create_file NAME_OF_NEW_FILE

The $1 is a special shell variable which takes the first argument on the command line after the program name; i.e. $1 will pick up NAME_OF_NEW_FILE in the above usage example.

you could use is_displayed() like below

res = driver.find_element_by_id("some_id").is_displayed()
assert res, 'element not displayed!'

Are they identical?

> identical(A,C)
[1] FALSE

Which elements disagree:

> which(A != C)
[1] 2 4

In short:

• OpenJDK has multiple meanings and can refer to:
  • free and open source implementation of the Java Platform, Standard Edition (Java SE)
  • open source repository — the Java source code aka OpenJDK project
  • prebuilt OpenJDK binaries maintained by Oracle
  • prebuilt OpenJDK binaries maintained by the OpenJDK community
• AdoptOpenJDK — prebuilt OpenJDK binaries maintained by community (open source licensed)

Explanation:

Prebuilt OpenJDK (or distribution) — binaries, built from http://hg.openjdk.java.net/, provided as an archive or installer, offered for various platforms, with a possible support contract.

OpenJDK, the source repository (also called OpenJDK project) - is a Mercurial-based open source repository, hosted at http://hg.openjdk.java.net. The Java source code. The vast majority of Java features (from the VM and the core libraries to the compiler) are based solely on this source repository. Oracle have an alternate fork of this.

OpenJDK, the distribution (see the list of providers below) - is free as in beer and kind of free as in speech, but, you do not get to call Oracle if you have problems with it. There is no support contract. Furthermore, Oracle will only release updates to any OpenJDK (the distribution) version if that release is the most recent Java release, including LTS (long-term support) releases. The day Oracle releases OpenJDK (the distribution) version 12.0, even if there's a security issue with OpenJDK (the distribution) version 11.0, Oracle will not release an update for 11.0. Maintained solely by Oracle.

Some OpenJDK projects - such as OpenJDK 8 and OpenJDK 11 - are maintained by the OpenJDK community and provide releases for some OpenJDK versions for some platforms. The community members have taken responsibility for releasing fixes for security vulnerabilities in these OpenJDK versions.

AdoptOpenJDK, the distribution is very similar to Oracle's OpenJDK distribution (in that it is free, and it is a build produced by compiling the sources from the OpenJDK source repository). AdoptOpenJDK as an entity will not be backporting patches, i.e. there won't be an AdoptOpenJDK 'fork/version' that is materially different from upstream (except for some build script patches for things like Win32 support). Meaning, if members of the community (Oracle or others, but not AdoptOpenJDK as an entity) backport security fixes to updates of OpenJDK LTS versions, then AdoptOpenJDK will provide builds for those. Maintained by OpenJDK community.

OracleJDK - is yet another distribution. Starting with JDK12 there will be no free version of OracleJDK. Oracle's JDK distribution offering is intended for commercial support. You pay for this, but then you get to rely on Oracle for support. Unlike Oracle's OpenJDK offering, OracleJDK comes with longer support for LTS versions. As a developer you can get a free license for personal/development use only of this particular JDK, but that's mostly a red herring, as 'just the binary' is basically the same as the OpenJDK binary. I guess it means you can download security-patched versions of LTS JDKs from Oracle's websites as long as you promise not to use them commercially.

Note. It may be best to call the OpenJDK builds by Oracle the "Oracle OpenJDK builds".

Donald Smith, Java product manager at Oracle writes:

Ideally, we would simply refer to all Oracle JDK builds as the "Oracle JDK", either under the GPL or the commercial license, depending on your situation. However, for historical reasons, while the small remaining differences exist, we will refer to them separately as Oracle’s OpenJDK builds and the Oracle JDK.

OpenJDK Providers and Comparison

• AdoptOpenJDK - https://adoptopenjdk.net
• Amazon – Corretto - https://aws.amazon.com/corretto
• Azul Zulu - https://www.azul.com/downloads/zulu/
• BellSoft Liberica - https://bell-sw.com/java.html
• IBM - https://www.ibm.com/developerworks/java/jdk
• jClarity - https://www.jclarity.com/adoptopenjdk-support/
• OpenJDK Upstream - https://adoptopenjdk.net/upstream.html
• Oracle JDK - https://www.oracle.com/technetwork/java/javase/downloads
• Oracle OpenJDK - http://jdk.java.net
• ojdkbuild - https://github.com/ojdkbuild/ojdkbuild
• RedHat - https://developers.redhat.com/products/openjdk/overview
• SapMachine - https://sap.github.io/SapMachine

----------------------------------------------------------------------------------------
|     Provider      | Free Builds | Free Binary   | Extended | Commercial | Permissive |
|                   | from Source | Distributions | Updates  | Support    | License    |
|--------------------------------------------------------------------------------------|
| AdoptOpenJDK      |    Yes      |    Yes        |   Yes    |   No       |   Yes      |
| Amazon – Corretto |    Yes      |    Yes        |   Yes    |   No       |   Yes      |
| Azul Zulu         |    No       |    Yes        |   Yes    |   Yes      |   Yes      |
| BellSoft Liberica |    No       |    Yes        |   Yes    |   Yes      |   Yes      |
| IBM               |    No       |    No         |   Yes    |   Yes      |   Yes      |
| jClarity          |    No       |    No         |   Yes    |   Yes      |   Yes      |
| OpenJDK           |    Yes      |    Yes        |   Yes    |   No       |   Yes      |
| Oracle JDK        |    No       |    Yes        |   No**   |   Yes      |   No       |
| Oracle OpenJDK    |    Yes      |    Yes        |   No     |   No       |   Yes      |
| ojdkbuild         |    Yes      |    Yes        |   No     |   No       |   Yes      |
| RedHat            |    Yes      |    Yes        |   Yes    |   Yes      |   Yes      |
| SapMachine        |    Yes      |    Yes        |   Yes    |   Yes      |   Yes      |
----------------------------------------------------------------------------------------

_{Free Builds from Source - the distribution source code is publicly available and one can assemble its own build}

_{Free Binary Distributions - the distribution binaries are publicly available for download and usage}

_{Extended Updates - aka LTS (long-term support) - Public Updates beyond the 6-month release lifecycle}

_{Commercial Support - some providers offer extended updates and customer support to paying customers, e.g. Oracle JDK (support details)}

_{Permissive License - the distribution license is non-protective, e.g. Apache 2.0}

Which Java Distribution Should I Use?

In the Sun/Oracle days, it was usually Sun/Oracle producing the proprietary downstream JDK distributions based on OpenJDK sources. Recently, Oracle had decided to do their own proprietary builds only with the commercial support attached. They graciously publish the OpenJDK builds as well on their https://jdk.java.net/ site.

What is happening starting JDK 11 is the shift from single-vendor (Oracle) mindset to the mindset where you select a provider that gives you a distribution for the product, under the conditions you like: platforms they build for, frequency and promptness of releases, how support is structured, etc. If you don't trust any of existing vendors, you can even build OpenJDK yourself.

Each build of OpenJDK is usually made from the same original upstream source repository (OpenJDK “the project”). However each build is quite unique - $free or commercial, branded or unbranded, pure or bundled (e.g., BellSoft Liberica JDK offers bundled JavaFX, which was removed from Oracle builds starting JDK 11).

If no environment (e.g., Linux) and/or license requirement defines specific distribution and if you want the most standard JDK build, then probably the best option is to use OpenJDK by Oracle or AdoptOpenJDK.

Additional information

Time to look beyond Oracle's JDK by Stephen Colebourne

Java Is Still Free by Java Champions community (published on September 17, 2018)

Java is Still Free 2.0.0 by Java Champions community (published on March 3, 2019)

Aleksey Shipilev about JDK updates interview by Opsian (published on June 27, 2019)

I written also a URL validation function base on rfc1738 and rfc3986 to check http and https urls. I try to hold this modular, so it can be better maintained and adapted to own requirements.

The RegExp in one line is show at end of this post.

The RegExp accept HTTP and HTTPS URLs with some international domain or IPv4 number. IPv6 is not supported yet.

window.isValidURL = (function() {// wrapped in self calling function to prevent global pollution

     //URL pattern based on rfc1738 and rfc3986
    var rg_pctEncoded = "%[0-9a-fA-F]{2}";
    var rg_protocol = "(http|https):\\/\\/";

    var rg_userinfo = "([a-zA-Z0-9$\\-_.+!*'(),;:&=]|" + rg_pctEncoded + ")+" + "@";

    var rg_decOctet = "(25[0-5]|2[0-4][0-9]|[0-1][0-9][0-9]|[1-9][0-9]|[0-9])"; // 0-255
    var rg_ipv4address = "(" + rg_decOctet + "(\\." + rg_decOctet + "){3}" + ")";
    var rg_hostname = "([a-zA-Z0-9\\-\\u00C0-\\u017F]+\\.)+([a-zA-Z]{2,})";
    var rg_port = "[0-9]+";

    var rg_hostport = "(" + rg_ipv4address + "|localhost|" + rg_hostname + ")(:" + rg_port + ")?";

    // chars sets
    // safe           = "$" | "-" | "_" | "." | "+"
    // extra          = "!" | "*" | "'" | "(" | ")" | ","
    // hsegment       = *[ alpha | digit | safe | extra | ";" | ":" | "@" | "&" | "=" | escape ]
    var rg_pchar = "a-zA-Z0-9$\\-_.+!*'(),;:@&=";
    var rg_segment = "([" + rg_pchar + "]|" + rg_pctEncoded + ")*";

    var rg_path = rg_segment + "(\\/" + rg_segment + ")*";
    var rg_query = "\\?" + "([" + rg_pchar + "/?]|" + rg_pctEncoded + ")*";
    var rg_fragment = "\\#" + "([" + rg_pchar + "/?]|" + rg_pctEncoded + ")*";

    var rgHttpUrl = new RegExp( 
        "^"
        + rg_protocol
        + "(" + rg_userinfo + ")?"
        + rg_hostport
        + "(\\/"
        + "(" + rg_path + ")?"
        + "(" + rg_query + ")?"
        + "(" + rg_fragment + ")?"
        + ")?"
        + "$"
    );

    // export public function
    return function (url) {
        if (rgHttpUrl.test(url)) {
            return true;
        } else {
            return false;
        }
    };
})();

RegExp in one line:

var rg = /^(http|https):\/\/(([a-zA-Z0-9$\-_.+!*'(),;:&=]|%[0-9a-fA-F]{2})+@)?(((25[0-5]|2[0-4][0-9]|[0-1][0-9][0-9]|[1-9][0-9]|[0-9])(\.(25[0-5]|2[0-4][0-9]|[0-1][0-9][0-9]|[1-9][0-9]|[0-9])){3})|localhost|([a-zA-Z0-9\-\u00C0-\u017F]+\.)+([a-zA-Z]{2,}))(:[0-9]+)?(\/(([a-zA-Z0-9$\-_.+!*'(),;:@&=]|%[0-9a-fA-F]{2})*(\/([a-zA-Z0-9$\-_.+!*'(),;:@&=]|%[0-9a-fA-F]{2})*)*)?(\?([a-zA-Z0-9$\-_.+!*'(),;:@&=\/?]|%[0-9a-fA-F]{2})*)?(\#([a-zA-Z0-9$\-_.+!*'(),;:@&=\/?]|%[0-9a-fA-F]{2})*)?)?$/;

response.setContentType("text/html");

Above code would be include in "HTTP response" to inform the browser about the format of the response, so that the browser can interpret it.

Floating Point Exception happens because of an unexpected infinity or NaN. You can track that using gdb, which allows you to see what is going on inside your C program while it runs. For more details: https://www.cs.swarthmore.edu/~newhall/unixhelp/howto_gdb.php

In a nutshell, these commands might be useful...

gcc -g myprog.c

gdb a.out

gdb core a.out

ddd a.out

To check if browser is Google Chrome:

var isChrome = navigator.userAgent.includes("Chrome") && navigator.vendor.includes("Google Inc");

console.log(navigator.vendor);
// "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36 "

console.log(navigator.userAgent); 
// "Google Inc."

Create initMap method between "" tag or load javascript file before call google api.

<script src="Scripts/main.js"></script>_x000D_
_x000D_
<script src="https://maps.googleapis.com/maps/api/js?key=abcde&libraries=places&callback=initMap" async defer></script>

In PHP functions will not be evaluated inside strings, because there are different rules for variables.

<?php
function name() {
  return 'Mark';
}

echo 'My name is: name()';   // Output: My name is name()
echo 'My name is: '. name(); // Output: My name is Mark

The action parameter to the tag in HTML should not reference the PHP function you want to run. Action should refer to a page on the web server that will process the form input and return new HTML to the user. This can be the same location as the PHP script that outputs the form, or some people prefer to make a separate PHP file to handle actions.

The basic process is the same either way:

1. Generate HTML form to the user.
2. User fills in the form, clicks submit.
3. The form data is sent to the locations defined by action on the server.
4. The script validates the data and does something with it.
5. Usually a new HTML page is returned.

A simple example would be:

<?php
// $_POST is a magic PHP variable that will always contain
// any form data that was posted to this page.
// We check here to see if the textfield called 'name' had
// some data entered into it, if so we process it, if not we
// output the form.
if (isset($_POST['name'])) {
  print_name($_POST['name']);
}
else {
  print_form();
}

// In this function we print the name the user provided.
function print_name($name) {
  // $name should be validated and checked here depending on use.
  // In this case we just HTML escape it so nothing nasty should
  // be able to get through:
  echo 'Your name is: '. htmlentities($name);
}

// This function is called when no name was sent to us over HTTP.
function print_form() {
  echo '
    <form name="form1" method="post" action="">
    <p><label><input type="text" name="name" id="textfield"></label></p>
    <p><label><input type="submit" name="button" id="button" value="Submit"></label></p>
    </form>
  ';
}
?>

For future information I recommend reading the PHP tutorials: http://php.net/tut.php

There is even a section about Dealing with forms.

I've made a plugin vim-textobj-quotes: https://github.com/beloglazov/vim-textobj-quotes

It provides text objects for the closest pairs of quotes of any type. Using only iq or aq it allows you to operate on the content of single ('), double ("), or back (`) quotes that currently surround the cursor, are in front of the cursor, or behind (in that order of preference). In other words, it jumps forward or backwards when needed to reach the quotes.

It's easier to understand by looking at examples (the cursor is shown with |):

1. Before: foo '1, |2, 3' bar; after pressing diq: foo '|' bar
2. Before: foo| '1, 2, 3' bar; after pressing diq: foo '|' bar
3. Before: foo '1, 2, 3' |bar; after pressing diq: foo '|' bar
4. Before: foo '1, |2, 3' bar; after pressing daq: foo | bar
5. Before: foo| '1, 2, 3' bar; after pressing daq: foo | bar
6. Before: foo '1, 2, 3' |bar; after pressing daq: foo | bar

The examples above are given for single quotes, the plugin works exactly the same way for double (") and back (`) quotes.

You can also use any other operators: ciq, diq, yiq, viq, etc.

Please have a look at the github page linked above for more details.

Here is another solution:

>>>list1=["C:\\","D:\\","E:\\","C:\\"]
>>>set1=set(list1)
>>>set1
set(['E:\\', 'D:\\', 'C:\\'])

In this code I have used the set method in order to turn it into a set and then it removed all duplicate values from the list

Package & install are various phases in maven build lifecycle. package phase will execute all phases prior to that & it will stop with packaging the project as a jar. Similarly install phase will execute all prior phases & finally install the project locally for other dependent projects.

For understanding maven build lifecycle please go through the following link https://ayolajayamaha.blogspot.in/2014/05/difference-between-mvn-clean-install.html

If you want to select last numbers of rows from a table.

Syntax will be like

 select * from table_name except select top 
 (numbers of rows - how many rows you want)* from table_name

These statements work but differrent ways. thank you guys.

 select * from Products except select top (77-10) * from Products

in this way you can get last 10 rows but order will show descnding way

select top 10 * from products
 order by productId desc 

 select * from products
 where productid in (select top 10 productID from products)
 order by productID desc

 select * from products where productID not in 
 (select top((select COUNT(*) from products ) -10 )productID from products)

You can use httpx for that.

import httpx

async def get_async(url):
    async with httpx.AsyncClient() as client:
        return await client.get(url)

urls = ["http://google.com", "http://wikipedia.org"]

# Note that you need an async context to use `await`.
await asyncio.gather(*map(get_async, urls))

if you want a functional syntax, the gamla lib wraps this into get_async.

Then you can do

await gamla.map(gamla.get_async(10))(["http://google.com", "http://wikipedia.org"])

The 10 is the timeout in seconds.

(disclaimer: I am its author)

Its blank because you are writing to file. you should write to output using php://output instead and also send header information to indicate that it's csv.

Example

header('Content-Type: text/csv');
header('Content-Disposition: attachment; filename="sample.csv"');
$data = array(
        'aaa,bbb,ccc,dddd',
        '123,456,789',
        '"aaa","bbb"'
);

$fp = fopen('php://output', 'wb');
foreach ( $data as $line ) {
    $val = explode(",", $line);
    fputcsv($fp, $val);
}
fclose($fp);

To plot multiple graphs on the same figure you will have to do:

from numpy import *
import math
import matplotlib.pyplot as plt

t = linspace(0, 2*math.pi, 400)
a = sin(t)
b = cos(t)
c = a + b

plt.plot(t, a, 'r') # plotting t, a separately 
plt.plot(t, b, 'b') # plotting t, b separately 
plt.plot(t, c, 'g') # plotting t, c separately 
plt.show()

To add jquery to laravel you first have to add the Scaffolded javascript file, app.js

This can easily be done adding this tag.

<script src="{{ asset('js/app.js') }}"></script>

There are two main procesess depending on the version but at the end of both you will have to execute:

npm run dev

That adds all the dependencies to the app.js file. But if you want this process to be done automatically for you, you can also run:

npm run watch

Wich will keep watching for changes and add them.

Version 5.*

jQuery is already included in this version of laravel as a dev dependency.

You just have to run:

npm install

This first command will install the dependencies. jquery will be added.

Version 6.* and 7*

jQuery has been taken out of laravel that means you need to import it manually.

I'll import it here as a development dependency:

npm i -D jquery

Then add it to the bootstrap.js file in resources/js/bootstrap.js You may notice that axios and lodash are imported there as well so in the same way we can import jquery.

Just add wherever you want there:

//In resources/js/bootstrap.js
window.$ = require('jquery');

If you follow this process in the 5.* version it won't affect laravel but it will install a more updated version of jquery.

The problem is that you do not insert your canvas element in the document body.

Just do the following:

document.body.appendChild(canvas);

Example:

var canvas = document.createElement('canvas');_x000D_
_x000D_
canvas.id = "CursorLayer";_x000D_
canvas.width = 1224;_x000D_
canvas.height = 768;_x000D_
canvas.style.zIndex = 8;_x000D_
canvas.style.position = "absolute";_x000D_
canvas.style.border = "1px solid";_x000D_
_x000D_
_x000D_
var body = document.getElementsByTagName("body")[0];_x000D_
body.appendChild(canvas);_x000D_
_x000D_
cursorLayer = document.getElementById("CursorLayer");_x000D_
_x000D_
console.log(cursorLayer);_x000D_
_x000D_
// below is optional_x000D_
_x000D_
var ctx = canvas.getContext("2d");_x000D_
ctx.fillStyle = "rgba(255, 0, 0, 0.2)";_x000D_
ctx.fillRect(100, 100, 200, 200);_x000D_
ctx.fillStyle = "rgba(0, 255, 0, 0.2)";_x000D_
ctx.fillRect(150, 150, 200, 200);_x000D_
ctx.fillStyle = "rgba(0, 0, 255, 0.2)";_x000D_
ctx.fillRect(200, 50, 200, 200);

Option 1

Open a different console and run

jupyter notebook stop [PORT]

The default [PORT] is 8888, so, assuming that Jupyter Notebooks is running on port 8888, just run

jupyter notebook stop

If it is on port 9000, then

jupyter notebook stop 9000

Option 2 (Source)

1. Check runtime folder location

   jupyter --paths
   

2. Remove all files in the runtime folder

   rm -r [RUNTIME FOLDER PATH]/*
   

3. Use top to find any Jupyter Notebook running processes left and if so kill their PID.

   top | grep jupyter &
   kill [PID]
   

One can boilt it down to

TARGET_PORT=8888
kill -9 $(lsof -n -i4TCP:$TARGET_PORT | cut -f 2 -d " ")

Note: If one wants to launch one's Notebook on a specific IP/Port

jupyter notebook --ip=[ADD_IP] --port=[ADD_PORT] --allow-root &

Configuring the CORS response headers on the server wasn't really an option. You should configure a proxy in client side.

Sample to Angular - So, I created a proxy.conf.json file to act as a proxy server. Below is my proxy.conf.json file:

{
  "/api": {
    "target": "http://localhost:49389",
    "secure": true,
    "pathRewrite": {
      "^/api": "/api"
    },
    "changeOrigin": true
  }
}

Put the file in the same directory the package.json then I modified the start command in the package.json file like below

"start": "ng serve --proxy-config proxy.conf.json"

now, the http call from the app component is as follows:

return this.http.get('/api/customers').map((res: Response) => res.json());

Lastly to run use npm start or ng serve --proxy-config proxy.conf.json

I have written a complete utility class (inspired by Askar's proposal) that can take Java 8 lambda expression and turn them (if applicable) into any typed standard Java 8 lambda defined in the package java.util.function. You can for example do:

• asPredicate(String::isEmpty).negate()
• asBiPredicate(String::equals).negate()

Because there would be numerous ambiguities if all the static methods would be named just as(), I opted to call the method "as" followed by the returned type. This gives us full control of the lambda interpretation. Below is the first part of the (somewhat large) utility class revealing the pattern used.

Have a look at the complete class here (at gist).

public class FunctionCastUtil {

    public static <T, U> BiConsumer<T, U> asBiConsumer(BiConsumer<T, U> biConsumer) {
        return biConsumer;
    }

    public static <T, U, R> BiFunction<T, U, R> asBiFunction(BiFunction<T, U, R> biFunction) {
        return biFunction;
    }

     public static <T> BinaryOperator<T> asBinaryOperator(BinaryOperator<T> binaryOperator) {
        return binaryOperator;
    }

    ... and so on...
}

Simply use \1 instead of $1:

In [1]: import re

In [2]: method = 'images/:id/huge'

In [3]: re.sub(r'(:[a-z]+)', r'<span>\1</span>', method)
Out[3]: 'images/<span>:id</span>/huge'

Also note the use of raw strings (r'...') for regular expressions. It is not mandatory but removes the need to escape backslashes, arguably making the code slightly more readable.

I built quicktype exactly for this purpose. Just paste your sample JSON and quicktype generates this type hierarchy for your API data:

struct Forecast {
    let hourly: Hourly
    let daily: Daily
    let currently: Currently
    let flags: Flags
    let longitude: Double
    let latitude: Double
    let offset: Int
    let timezone: String
}

struct Hourly {
    let icon: String
    let data: [Currently]
    let summary: String
}

struct Daily {
    let icon: String
    let data: [Datum]
    let summary: String
}

struct Datum {
    let precipIntensityMax: Double
    let apparentTemperatureMinTime: Int
    let apparentTemperatureLowTime: Int
    let apparentTemperatureHighTime: Int
    let apparentTemperatureHigh: Double
    let apparentTemperatureLow: Double
    let apparentTemperatureMaxTime: Int
    let apparentTemperatureMax: Double
    let apparentTemperatureMin: Double
    let icon: String
    let dewPoint: Double
    let cloudCover: Double
    let humidity: Double
    let ozone: Double
    let moonPhase: Double
    let precipIntensity: Double
    let temperatureHigh: Double
    let pressure: Double
    let precipProbability: Double
    let precipIntensityMaxTime: Int
    let precipType: String?
    let sunriseTime: Int
    let summary: String
    let sunsetTime: Int
    let temperatureMax: Double
    let time: Int
    let temperatureLow: Double
    let temperatureHighTime: Int
    let temperatureLowTime: Int
    let temperatureMin: Double
    let temperatureMaxTime: Int
    let temperatureMinTime: Int
    let uvIndexTime: Int
    let windGust: Double
    let uvIndex: Int
    let windBearing: Int
    let windGustTime: Int
    let windSpeed: Double
}

struct Currently {
    let precipProbability: Double
    let humidity: Double
    let cloudCover: Double
    let apparentTemperature: Double
    let dewPoint: Double
    let ozone: Double
    let icon: String
    let precipIntensity: Double
    let temperature: Double
    let pressure: Double
    let precipType: String?
    let summary: String
    let uvIndex: Int
    let windGust: Double
    let time: Int
    let windBearing: Int
    let windSpeed: Double
}

struct Flags {
    let sources: [String]
    let isdStations: [String]
    let units: String
}

It also generates dependency-free marshaling code to coax the return value of JSONSerialization.jsonObject into a Forecast, including a convenience constructor that takes a JSON string so you can quickly parse a strongly typed Forecast value and access its fields:

let forecast = Forecast.from(json: jsonString)!
print(forecast.daily.data[0].windGustTime)

You can install quicktype from npm with npm i -g quicktype or use the web UI to get the complete generated code to paste into your playground.

Some explanation (at least for Fragments - never tried with pure Activity). Hope it helps someone to understand Android better.

Most popular answer by Arun George is correct but don't work in some cases.
The answer by Marco HC uses Runnable wich is a last resort due to additional CPU load.

The answer is - you should simply choose correct place to call to setSelection(), for example it works for me:

@Override
public void onResume() {
    super.onResume();

    yourSpinner.setSelection(pos);
 }

But it won't work in onCreateView(). I suspect that is the reason for the interest to this topic.

The secret is that with Android you can't do anything you want in any method - oops:( - components may just not be ready. As another example - you can't scroll ScrollView neither in onCreateView() nor in onResume() (see the answer here)

The accepted answer here indeed makes a json from a form, but the json contents is really a string with url-encoded contents.

To make a more realistic json POST, use some solution from Serialize form data to JSON to make formToJson function and add contentType: 'application/json;charset=UTF-8' to the jQuery ajax call parameters.

$.ajax({
    url: 'test.php',
    type: "POST",
    dataType: 'json',
    data: formToJson($("form")),
    contentType: 'application/json;charset=UTF-8',
    ...
})

I recently wrote a gem to simplify this process and to neaten up your views, etc etc.

Check it out at: http://github.com/platform45/easy_dates

Best way to do this without blocking the UI thread is to use Async and Await introduced in .net 4.5.
You can paste this in your code just change the Browser to your webbrowser name. This way, your thread awaits the page to load, if it doesnt on time, it stops waiting and your code continues to run:

private async Task PageLoad(int TimeOut)
    {
        TaskCompletionSource<bool> PageLoaded = null;
        PageLoaded = new TaskCompletionSource<bool>();
        int TimeElapsed = 0;
        Browser.DocumentCompleted += (s, e) =>
        {
            if (Browser.ReadyState != WebBrowserReadyState.Complete) return;
            if (PageLoaded.Task.IsCompleted) return; PageLoaded.SetResult(true);
        };
        //
        while (PageLoaded.Task.Status != TaskStatus.RanToCompletion)
        {
            await Task.Delay(10);//interval of 10 ms worked good for me
            TimeElapsed++;
            if (TimeElapsed >= TimeOut * 100) PageLoaded.TrySetResult(true);
        }
    }

And you can use it like this, with in an async method, or in a button click event, just make it async:

private async void Button1_Click(object sender, EventArgs e)
{
   Browser.Navigate("www.example.com");
   await PageLoad(10);//await for page to load, timeout 10 seconds.
   //your code will run after the page loaded or timeout.
}

I know it's already answered but couldn't you just synchronize the settings in the settings designer to move back to your default settings?

Going further on Pekka's answer, I had a style "style1" on some of my textboxes. You can create a "style1[disabled]" so you style only the disabled textboxes using "style1" style:

.style1[disabled] { ... }

Worked ok on IE8.

Starting with MongoDB 3.4, the recommended way to perform fast case-insensitive searches is to use a Case Insensitive Index.

I personally emailed one of the founders to please get this working, and he made it happen! It was an issue on JIRA since 2009, and many have requested the feature. Here's how it works:

A case-insensitive index is made by specifying a collation with a strength of either 1 or 2. You can create a case-insensitive index like this:

db.cities.createIndex(
  { city: 1 },
  { 
    collation: {
      locale: 'en',
      strength: 2
    }
  }
);

You can also specify a default collation per collection when you create them:

db.createCollection('cities', { collation: { locale: 'en', strength: 2 } } );

In either case, in order to use the case-insensitive index, you need to specify the same collation in the find operation that was used when creating the index or the collection:

db.cities.find(
  { city: 'new york' }
).collation(
  { locale: 'en', strength: 2 }
);

This will return "New York", "new york", "New york" etc.

Other notes

• The answers suggesting to use full-text search are wrong in this case (and potentially dangerous). The question was about making a case-insensitive query, e.g. username: 'bill' matching BILL or Bill, not a full-text search query, which would also match stemmed words of bill, such as Bills, billed etc.

• The answers suggesting to use regular expressions are slow, because even with indexes, the documentation states:

  "Case insensitive regular expression queries generally cannot use indexes effectively. The $regex implementation is not collation-aware and is unable to utilize case-insensitive indexes."

  $regex answers also run the risk of user input injection.

What happens if you try the following?

Instead of your double REPLACE statement, try:

REPLACE(IFNULL(ts.description, ''),'\r\n', '\n')

Also, I think it should be LINES TERMINATED BY '\r\n' instead of just '\n'

$(document).ready(function () {
    $('#tags').on('change', function () {
        $('#tagsname').html('You selected: ' + this.value);
    }).change();
    $('#tags').on('blur', function (e, ui) {
        $('#tagsname').html('You selected: ' + ui.item.value);
    });
});

You are correct, but note that you can do it the other way around - use Android Wifi tethering that sets up the phone as a base station and connect to said base station from the laptop.

When I'm in a C mood, I usually use zip and list comprehensions for scanf-like behavior. Like this:

input = '1 3.0 false hello'
(a, b, c, d) = [t(s) for t,s in zip((int,float,strtobool,str),input.split())]
print (a, b, c, d)

Note that for more complex format strings, you do need to use regular expressions:

import re
input = '1:3.0 false,hello'
(a, b, c, d) = [t(s) for t,s in zip((int,float,strtobool,str),re.search('^(\d+):([\d.]+) (\w+),(\w+)$',input).groups())]
print (a, b, c, d)

Note also that you need conversion functions for all types you want to convert. For example, above I used something like:

strtobool = lambda s: {'true': True, 'false': False}[s]

Aus_lacy's post gave me the idea of trying related methods, of which join does work:

In [196]:

hl.name = 'hl'
Out[196]:
'hl'
In [199]:

df.join(hl).head(4)
Out[199]:
high    low loc_h   loc_l   hl
2014-01-01 17:00:00 1.376235    1.375945    1.376235    1.375945    1.376090
2014-01-01 17:01:00 1.376005    1.375775    NaN NaN NaN
2014-01-01 17:02:00 1.375795    1.375445    NaN 1.375445    1.375445
2014-01-01 17:03:00 1.375625    1.375515    NaN NaN NaN

Some insight into why concat works on the example but not this data would be nice though!

You'll want to look into JavaScript's substr or split, as this is not really a task suited for jQuery.

Your LD_LIBRARY_PATH doesn't include the path to libsvmlight.so.

$ export LD_LIBRARY_PATH=/home/tim/program_files/ICMCluster/svm_light/release/lib:$LD_LIBRARY_PATH

My answer will focus on WHEN we can use while/for-else.

At the first glance, it seems there is no different when using

while CONDITION:
    EXPRESSIONS
print 'ELSE'
print 'The next statement'

and

while CONDITION:
    EXPRESSIONS
else:
    print 'ELSE'
print 'The next statement'

Because the print 'ELSE' statement seems always executed in both cases (both when the while loop finished or not run).

Then, it's only different when the statement print 'ELSE' will not be executed. It's when there is a breakinside the code block under while

In [17]: i = 0

In [18]: while i < 5:
    print i
    if i == 2:
        break
    i = i +1
else:
    print 'ELSE'
print 'The next statement'
   ....:
0
1
2
The next statement

If differ to:

In [19]: i = 0

In [20]: while i < 5:
    print i
    if i == 2:
        break
    i = i +1
print 'ELSE'
print 'The next statement'
   ....:
0
1
2
ELSE
The next statement

return is not in this category, because it does the same effect for two above cases.

exception raise also does not cause difference, because when it raises, where the next code will be executed is in exception handler (except block), the code in else clause or right after the while clause will not be executed.

Try this to get all the list at first, then your desired element (say the First in your case):

var desiredElementCompoundValueList = new List<YourType>();
dic.Values.ToList().ForEach( elem => 
{
   desiredElementCompoundValue.Add(elem.ComponentValue("Dep"));
});
var x = desiredElementCompoundValueList.FirstOrDefault();

To get directly the first element value without a lot of foreach iteration and variable assignment:

var desiredCompoundValue = dic.Values.ToList().Select( elem => elem.CompoundValue("Dep")).FirstOrDefault();

See the difference between the two approaches: in the first one you get the list through a ForEach, then your element. In the second you can get your value in a straight way.

Same result, different computation ;)

On Windows 10, for me

ngrok http 80

behaves like this:

• works from Command Prompt (cmd.exe)
• does not work from Git Bash
• does not work from Windows PowerShell

Use my custome class to check or request permisson

public class Permissons {

        //Request Permisson
        public static void Request_STORAGE(Activity act,int code)
        {

            ActivityCompat.requestPermissions(act, new
                    String[]{android.Manifest.permission.WRITE_EXTERNAL_STORAGE},code);
        }
        public static void Request_CAMERA(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.CAMERA},code);
        }
        public static void Request_FINE_LOCATION(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.ACCESS_FINE_LOCATION},code);
        }
        public static void Request_READ_SMS(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.READ_SMS},code);
        }
        public static void Request_READ_CONTACTS(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.READ_CONTACTS},code);
        }
        public static void Request_READ_CALENDAR(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.READ_CALENDAR},code);
        }
        public static void Request_RECORD_AUDIO(Activity act,int code)
        {
            ActivityCompat.requestPermissions(act, new
                    String[]{Manifest.permission.RECORD_AUDIO},code);
        }

        //Check Permisson
        public static boolean Check_STORAGE(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act,android.Manifest.permission.WRITE_EXTERNAL_STORAGE);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_CAMERA(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.CAMERA);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_FINE_LOCATION(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.ACCESS_FINE_LOCATION);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_READ_SMS(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.READ_SMS);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_READ_CONTACTS(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.READ_CONTACTS);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_READ_CALENDAR(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.READ_CALENDAR);
            return result == PackageManager.PERMISSION_GRANTED;
        }
        public static boolean Check_RECORD_AUDIO(Activity act)
        {
            int result = ContextCompat.checkSelfPermission(act, Manifest.permission.RECORD_AUDIO);
            return result == PackageManager.PERMISSION_GRANTED;
        }
    }

Example

if(!Permissons.Check_STORAGE(MainActivity.this))
{
   //if not permisson granted so request permisson with request code
   Permissons.Request_STORAGE(MainActivity.this,22);
}

The problem with all the approaches based on gethostbyname is that you will not get all IP addresses assigned to a particular machine. Servers usually have more than one adapter.

Here is an example of how you can iterate through all Ipv4 and Ipv6 addresses on the host machine:

void ListIpAddresses(IpAddresses& ipAddrs)
{
  IP_ADAPTER_ADDRESSES* adapter_addresses(NULL);
  IP_ADAPTER_ADDRESSES* adapter(NULL);

  // Start with a 16 KB buffer and resize if needed -
  // multiple attempts in case interfaces change while
  // we are in the middle of querying them.
  DWORD adapter_addresses_buffer_size = 16 * KB;
  for (int attempts = 0; attempts != 3; ++attempts)
  {
    adapter_addresses = (IP_ADAPTER_ADDRESSES*)malloc(adapter_addresses_buffer_size);
    assert(adapter_addresses);

    DWORD error = ::GetAdaptersAddresses(
      AF_UNSPEC, 
      GAA_FLAG_SKIP_ANYCAST | 
        GAA_FLAG_SKIP_MULTICAST | 
        GAA_FLAG_SKIP_DNS_SERVER |
        GAA_FLAG_SKIP_FRIENDLY_NAME, 
      NULL, 
      adapter_addresses,
      &adapter_addresses_buffer_size);

    if (ERROR_SUCCESS == error)
    {
      // We're done here, people!
      break;
    }
    else if (ERROR_BUFFER_OVERFLOW == error)
    {
      // Try again with the new size
      free(adapter_addresses);
      adapter_addresses = NULL;

      continue;
    }
    else
    {
      // Unexpected error code - log and throw
      free(adapter_addresses);
      adapter_addresses = NULL;

      // @todo
      LOG_AND_THROW_HERE();
    }
  }

  // Iterate through all of the adapters
  for (adapter = adapter_addresses; NULL != adapter; adapter = adapter->Next)
  {
    // Skip loopback adapters
    if (IF_TYPE_SOFTWARE_LOOPBACK == adapter->IfType)
    {
      continue;
    }

    // Parse all IPv4 and IPv6 addresses
    for (
      IP_ADAPTER_UNICAST_ADDRESS* address = adapter->FirstUnicastAddress; 
      NULL != address;
      address = address->Next)
    {
      auto family = address->Address.lpSockaddr->sa_family;
      if (AF_INET == family)
      {
        // IPv4
        SOCKADDR_IN* ipv4 = reinterpret_cast<SOCKADDR_IN*>(address->Address.lpSockaddr);

        char str_buffer[INET_ADDRSTRLEN] = {0};
        inet_ntop(AF_INET, &(ipv4->sin_addr), str_buffer, INET_ADDRSTRLEN);
        ipAddrs.mIpv4.push_back(str_buffer);
      }
      else if (AF_INET6 == family)
      {
        // IPv6
        SOCKADDR_IN6* ipv6 = reinterpret_cast<SOCKADDR_IN6*>(address->Address.lpSockaddr);

        char str_buffer[INET6_ADDRSTRLEN] = {0};
        inet_ntop(AF_INET6, &(ipv6->sin6_addr), str_buffer, INET6_ADDRSTRLEN);

        std::string ipv6_str(str_buffer);

        // Detect and skip non-external addresses
        bool is_link_local(false);
        bool is_special_use(false);

        if (0 == ipv6_str.find("fe"))
        {
          char c = ipv6_str[2];
          if (c == '8' || c == '9' || c == 'a' || c == 'b')
          {
            is_link_local = true;
          }
        }
        else if (0 == ipv6_str.find("2001:0:"))
        {
          is_special_use = true;
        }

        if (! (is_link_local || is_special_use))
        {
          ipAddrs.mIpv6.push_back(ipv6_str);
        }
      }
      else
      {
        // Skip all other types of addresses
        continue;
      }
    }
  }

  // Cleanup
  free(adapter_addresses);
  adapter_addresses = NULL;

  // Cheers!
}

I was trying to to the same, I found lots of information on reading .docx but much less on .doc; Anyway, I managed to read the text using the following:

import win32com.client

word = win32com.client.Dispatch("Word.Application")
word.visible = False
wb = word.Documents.Open("myfile.doc")
doc = word.ActiveDocument
print(doc.Range().Text)

A rewrite of the answer by Sarfraz would be something like this, I think:

<script>

    document.getElementById('change').onclick = changeColor;   

    function changeColor() {
        document.body.style.color = "purple";
        return false;
    }   

</script>

You'd either have to put this script at the bottom of your page, right before the closing body tag, or put the handler assignment in a function called onload - or if you're using jQuery there's the very elegant $(document).ready(function() { ... } );

Note that when you assign event handlers this way, it takes the functionality out of your HTML. Also note you set it equal to the function name -- no (). If you did onclick = myFunc(); the function would actually execute when the handler is being set.

And I'm curious -- you knew enough to script changing the background color, but not the text color? strange:)

Try either

• sudo apt-get install php-zip or
• sudo apt-get install php5.6-zip

Then, you might have to restart your web server.

• sudo service apache2 restart or
• sudo service nginx restart

If you are installing on centos or fedora OS then use yum in place of apt-get. example:-

sudo yum install php-zip or sudo yum install php5.6-zip and sudo service httpd restart

To get the full file path of a selected file or files, then you need to use FileName property for one file or FileNames property for multiple files.

var file = choofdlog.FileName; // for one file

or for multiple files

var files = choofdlog.FileNames; // for multiple files.

To get the directory of the file, you can use Path.GetDirectoryName
Here is Jon Keet's answer to a similar question about getting directories from path

var request = (HttpWebRequest)WebRequest.Create("sendrequesturl");
var response = (HttpWebResponse)request.GetResponse();
string responseString;
using (var stream = response.GetResponseStream())
{
    using (var reader = new StreamReader(stream))
    {
        responseString = reader.ReadToEnd();
    }
}

reload current route in angular 2 very helpful link to reload current route in angualr 2 or 4

in this define two technique to do this

1. with dummy query params
2. with dummy route

for more see above link

Been dealing with this issue for a while every time I tried opening a project.

I always receive this error even though I knew I had not made any changes that should of caused this apart from exporting to zip.

To Fix:

• Make a new project or open project that works
• Go to file > open > "your project"
• Make sure your dummy project stays open. The project you were getting errors should be opened in a new window.

This fixed it for me without doing any changes or deleting anything.

The solution to the issue when i had this earlier today was that there was an additional set of tags bolted on the end of my Web.config. Once removed the functionality returned.

Using Linux? And only want easy to access and clean working tree ? without bothering rest of code on your machine. try symlinks!

git clone https://github.com:{user}/{repo}.git ~/my-project
ln -s ~/my-project/my-subfolder ~/Desktop/my-subfolder

Test

cd ~/Desktop/my-subfolder
git status

I found this nice and easy-to-follow guide on how to download the GIT source and compile it yourself (and install it). If the accepted answer does not give you the version you want, try the following instructions:

http://tecadmin.net/install-git-2-0-on-centos-rhel-fedora/

(And pasted/reformatted from above source in case it is removed later)

Step 1: Install Required Packages

Firstly we need to make sure that we have installed required packages on your system. Use following command to install required packages before compiling Git source.

# yum install curl-devel expat-devel gettext-devel openssl-devel zlib-devel
# yum install  gcc perl-ExtUtils-MakeMaker

Step 2: Uninstall old Git RPM

Now remove any prior installation of Git through RPM file or Yum package manager. If your older version is also compiled through source, then skip this step.

# yum remove git

Step 3: Download and Compile Git Source

Download git source code from kernel git or simply use following command to download Git 2.5.3.

# cd /usr/src
# wget https://www.kernel.org/pub/software/scm/git/git-2.5.3.tar.gz
# tar xzf git-2.5.3.tar.gz

After downloading and extracting Git source code, Use following command to compile source code.

# cd git-2.5.3
# make prefix=/usr/local/git all
# make prefix=/usr/local/git install
# echo 'pathmunge /usr/local/git/bin/' > /etc/profile.d/git.sh 
# chmod +x /etc/profile.d/git.sh
# source /etc/bashrc

Step 4. Check Git Version

On completion of above steps, you have successfully install Git in your system. Use the following command to check the git version

# git --version

git version 2.5.3

I also wanted to add that the "Getting Started" guide at the GIT website also includes instructions on how to download and compile it yourself:

http://git-scm.com/book/en/v2/Getting-Started-Installing-Git

Your code was compiled with Java Version 1.8 while it is being executed with Java Version 1.7 or below.

In your case it seems that two different Java installations are used, the newer to compile and the older to execute your code.

Try recompiling your code with Java 1.7 or upgrade your Java Plugin.

System.out.println("wassup"); refers to when you have to output a certain result pertaining to the proper input given by the user whereas System.err.println("duh, that's wrong); is a reference to show that the input provided is wrong or there is some other error.

Most of the IDEs show this in red color (System.err.print).

That is because you have continuous text, means single long word without space. To break it add word-break: break-all;

.submenu div p {
    color:#fff;
    margin: 0;
    padding:0;
    width:100%;
    position: relative; word-break: break-all; background:red
}

DEMO

You can do something like this:

    public myform()
    {
         InitializeComponent(); // this will be called in ComboBox ComboBox = new System.Windows.Forms.ComboBox();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        // TODO: This line of code loads data into the 'myDataSet.someTable' table. You can move, or remove it, as needed.
        this.myTableAdapter.Fill(this.myDataSet.someTable);
        comboBox1.SelectedItem = null;
        comboBox1.SelectedText = "--select--";           
    }

JS does not have a sleep function, it has setTimeout() or setInterval() functions.

If you can move the code that you need to run after the pause into the setTimeout() callback, you can do something like this:

//code before the pause
setTimeout(function(){
    //do what you need here
}, 2000);

see example here : http://jsfiddle.net/9LZQp/

This won't halt the execution of your script, but due to the fact that setTimeout() is an asynchronous function, this code

console.log("HELLO");
setTimeout(function(){
    console.log("THIS IS");
}, 2000);
console.log("DOG");

will print this in the console:

HELLO
DOG
THIS IS

(note that DOG is printed before THIS IS)

You can use the following code to simulate a sleep for short periods of time:

function sleep(milliseconds) {
  var start = new Date().getTime();
  for (var i = 0; i < 1e7; i++) {
    if ((new Date().getTime() - start) > milliseconds){
      break;
    }
  }
}

now, if you want to sleep for 1 second, just use:

sleep(1000);

example: http://jsfiddle.net/HrJku/1/

please note that this code will keep your script busy for n milliseconds. This will not only stop execution of Javascript on your page, but depending on the browser implementation, may possibly make the page completely unresponsive, and possibly make the entire browser unresponsive. In other words this is almost always the wrong thing to do.

Monkey is right, according to the link given by monkey

Basically it's a way to map a combined/minified file back to an unbuilt state. When you build for production, along with minifying and combining your JavaScript files, you generate a source map which holds information about your original files. When you query a certain line and column number in your generated JavaScript you can do a lookup in the source map which returns the original location.

I am not sure if it is angular's fault that no map files were generated. But you can turn off source map files by unchecking this option in chrome console setting

user6779899's answer is neat and more generic However, based on the request by Imad El Hitti, a light weight solution is proposed here. This can be used when a child component is tightly connected to one parent only.

Parent.component.ts

export class Notifier {
    valueChanged: (data: number) => void = (d: number) => { };
}

export class Parent {
    notifyObj = new Notifier();
    tellChild(newValue: number) {
        this.notifyObj.valueChanged(newValue); // inform child
    }
}

Parent.component.html

<my-child-comp [notify]="notifyObj"></my-child-comp>

Child.component.ts

export class ChildComp implements OnInit{
    @Input() notify = new Notifier(); // create object to satisfy typescript
    ngOnInit(){
      this.notify.valueChanged = (d: number) => {
            console.log(`Parent has notified changes to ${d}`);
            // do something with the new value 
        };
    }
 }

Simple way is generating code as bellow:

<!DOCTYPE html>_x000D_
<html>_x000D_
<head>_x000D_
_x000D_
<style>_x000D_
  table, td {_x000D_
      border:1px solid black;_x000D_
  }_x000D_
</style>_x000D_
_x000D_
</head>_x000D_
<body>_x000D_
<p>Click on each tr element to alert its index position in the table:</p>_x000D_
<table>_x000D_
  <tr onclick="myFunction(this)">_x000D_
    <td>Click to show rowIndex</td>_x000D_
  </tr>_x000D_
  <tr onclick="myFunction(this)">_x000D_
    <td>Click to show rowIndex</td>_x000D_
  </tr>_x000D_
  <tr onclick="myFunction(this)">_x000D_
    <td>Click to show rowIndex</td>_x000D_
  </tr>_x000D_
</table>_x000D_
_x000D_
<script>_x000D_
  function myFunction(x) {_x000D_
      alert("Row index is: " + x.rowIndex);_x000D_
  }_x000D_
</script>_x000D_
_x000D_
</body>_x000D_
</html>

This is confusing. When you say "form object", do you mean "<select> element"? If not, your code won't work, so I'll assume your form variable is in fact a reference to a <select> element. Why do you want to rewrite this code? What you have has worked in all scriptable browsers since around 1996, and won't stop working any time soon. Doing it with jQuery will immediately make your code slower, more error-prone and less compatible across browsers.

Here's a function that uses your current code as a starting point and populates a <select> element from an object:

<select id="mySelect"></select>

<script type="text/javascript>

function populateSelect(select, optionsData) {
    var options = select.options, o, selected;
    options.length = 0;
    for (var i = 0, len = optionsData.length; i < len; ++i) {
        o = optionsData[i];
        selected = !!o.selected;
        options[i] = new Option(o.text, o.value, selected, selected);
    }
}

var optionsData = [
    {
        text: "Select a city / town in Sweden",
        value: ""
    },
    {
        text: "Melbourne",
        value: "Melbourne",
        selected: true
    }
];

populateSelect(document.getElementById("mySelect"), optionsData);

</script>

Found method to see your own html file (from here (scroll down to answer from prac): https://productforums.google.com/forum/#!topic/drive/YY_fou2vo0A)

-- use Get Link to get URL with id=... substring -- put uc instead of open in URL

link_to "+ Service", controller_action_path(:account_id => acct.id)

If it is still not working check the path:

$ rake routes

I was just searching for an answer to this exact question, come to find out the command itself adjusts the buffer!

mode con:cols=140 lines=70

The lines=70 part actually adjusts the Height in the 'Screen Buffer Size' setting, NOT the Height in the 'Window Size' setting.

Easily proven by running the command with a setting for 'lines=2500' (or whatever buffer you want) and then check the 'Properties' of the window, you'll see that indeed the buffer is now set to 2500.

My batch script ends up looking like this:

@echo off
cmd "mode con:cols=140 lines=2500"

I know my answer would be weird but that's what I have experienced just now.

I got the similar error when installing tensorflow package and I tried the same by opening powershell in windows as administrator but in vain.

Later I found out that I was already using numpy in one of the python scripts in an active python session. So I closed the Spyder IDE and tried to install the tensorflow package by running powershell as administrator and it worked.

Hope this will help somebody else like me who will open this older but useful post in upcoming days

Generate a migration to remove a column such that if it is migrated (rake db:migrate), it should drop the column. And it should add column back if this migration is rollbacked (rake db:rollback).

The syntax:

remove_column :table_name, :column_name, :type

Removes column, also adds column back if migration is rollbacked.

Example:

remove_column :users, :last_name, :string

Note: If you skip the data_type, the migration will remove the column successfully but if you rollback the migration it will throw an error.

h1 {
  font-weight: bold;
  color: #fff;
  font-size: 32px;
}

h2 {
  font-weight: bold;
  color: #fff;
  font-size: 24px;
}

Note that after color you can use a word (e.g. white), a hex code (e.g. #fff) or RGB (e.g. rgb(255,255,255)) or RGBA (e.g. rgba(255,255,255,0.3)).

Thread.currentThread().getStackTrace();

is available since JDK1.5.

For an older version, you can redirect exception.printStackTrace() to a StringWriter() :

StringWriter sw = new StringWriter();
new Throwable("").printStackTrace(new PrintWriter(sw));
String stackTrace = sw.toString();

Per this npm issue list, one work around could be done through npm config

name: 'foo'
config: { path: "baz" },
scripts: { start: "node ./$npm_package_config_path" }

Under windows, the scripts could be { start: "node ./%npm_package_config_path%" }

Then run the command line as below

npm start --foo:path=myapp

Also, note that XDocument is supported in Xbox 360 and Windows Phone OS 7.0. If you target them, develop for XDocument or migrate from XmlDocument.

You can

1. create a table variable to hold the result set from the stored proc and then
2. insert the output of the stored proc into the table variable, and then
3. use the table variable exactly as you would any other table...

... sql ....

Declare @T Table ([column definitions here])
Insert @T Exec storedProcname params 
Select * from @T Where ...

Try this:

Integer startIn = null;

try {
  startIn = Integer.valueOf(startField.getText());
} catch (NumberFormatException e) {
  .
  .
  .
}

if (startIn == null) {
  // Prompt for value...
}

Really human comprehensible example (as this is the first time I am using %in%), how to compare two data frames and keep only rows containing the equal values in specific column:

# Set seed for reproducibility.
set.seed(1)

# Create two sample data frames.
data_A <- data.frame(id=c(1,2,3), value=c(1,2,3))
data_B <- data.frame(id=c(1,2,3,4), value=c(5,6,7,8))

# compare data frames by specific columns and keep only 
# the rows with equal values 
data_A[data_A$id %in% data_B$id,]   # will keep data in data_A
data_B[data_B$id %in% data_A$id,]   # will keep data in data_b

Results:

> data_A[data_A$id %in% data_B$id,]
  id value
1  1     1
2  2     2
3  3     3

> data_B[data_B$id %in% data_A$id,]
  id value
1  1     5
2  2     6
3  3     7

To answer the question as asked (without repeating unduly what appears in other answers)

Lexers and parsers are not very different, as suggested by the accepted answer. Both are based on simple language formalisms: regular languages for lexers and, almost always, context-free (CF) languages for parsers. They both are associated with fairly simple computational models, the finite state automaton and the push-down stack automaton. Regular languages are a special case of context-free languages, so that lexers could be produced with the somewhat more complex CF technology. But it is not a good idea for at least two reasons.

A fundamental point in programming is that a system component should be buit with the most appropriate technology, so that it is easy to produce, to understand and to maintain. The technology should not be overkill (using techniques much more complex and costly than needed), nor should it be at the limit of its power, thus requiring technical contortions to achieve the desired goal.

That is why "It seems fashionable to hate regular expressions". Though they can do a lot, they sometimes require very unreadable coding to achieve it, not to mention the fact that various extensions and restrictions in implementation somewhat reduce their theoretical simplicity. Lexers do not usually do that, and are usually a simple, efficient, and appropriate technology to parse token. Using CF parsers for token would be overkill, though it is possible.

Another reason not to use CF formalism for lexers is that it might then be tempting to use the full CF power. But that might raise sructural problems regarding the reading of programs.

Fundamentally, most of the structure of program text, from which meaning is extracted, is a tree structure. It expresses how the parse sentence (program) is generated from syntax rules. Semantics is derived by compositional techniques (homomorphism for the mathematically oriented) from the way syntax rules are composed to build the parse tree. Hence the tree structure is essential. The fact that tokens are identified with a regular set based lexer does not change the situation, because CF composed with regular still gives CF (I am speaking very loosely about regular transducers, that transform a stream of characters into a stream of token).

However, CF composed with CF (via CF transducers ... sorry for the math), does not necessarily give CF, and might makes things more general, but less tractable in practice. So CF is not the appropriate tool for lexers, even though it can be used.

One of the major differences between regular and CF is that regular languages (and transducers) compose very well with almost any formalism in various ways, while CF languages (and transducers) do not, not even with themselves (with a few exceptions).

(Note that regular transducers may have others uses, such as formalization of some syntax error handling techniques.)

BNF is just a specific syntax for presenting CF grammars.

EBNF is a syntactic sugar for BNF, using the facilities of regular notation to give terser version of BNF grammars. It can always be transformed into an equivalent pure BNF.

However, the regular notation is often used in EBNF only to emphasize these parts of the syntax that correspond to the structure of lexical elements, and should be recognized with the lexer, while the rest with be rather presented in straight BNF. But it is not an absolute rule.

To summarize, the simpler structure of token is better analyzed with the simpler technology of regular languages, while the tree oriented structure of the language (of program syntax) is better handled by CF grammars.

I would suggest also looking at AHR's answer.

But this leaves a question open: Why trees?

Trees are a good basis for specifying syntax because

• they give a simple structure to the text

• there are very convenient for associating semantics with the text on the basis of that structure, with a mathematically well understood technology (compositionality via homomorphisms), as indicated above. It is a fundamental algebraic tool to define the semantics of mathematical formalisms.

Hence it is a good intermediate representation, as shown by the success of Abstract Syntax Trees (AST). Note that AST are often different from parse tree because the parsing technology used by many professionals (Such as LL or LR) applies only to a subset of CF grammars, thus forcing grammatical distorsions which are later corrected in AST. This can be avoided with more general parsing technology (based on dynamic programming) that accepts any CF grammar.

Statement about the fact that programming languages are context-sensitive (CS) rather than CF are arbitrary and disputable.

The problem is that the separation of syntax and semantics is arbitrary. Checking declarations or type agreement may be seen as either part of syntax, or part of semantics. The same would be true of gender and number agreement in natural languages. But there are natural languages where plural agreement depends on the actual semantic meaning of words, so that it does not fit well with syntax.

Many definitions of programming languages in denotational semantics place declarations and type checking in the semantics. So stating as done by Ira Baxter that CF parsers are being hacked to get a context sensitivity required by syntax is at best an arbitrary view of the situation. It may be organized as a hack in some compilers, but it does not have to be.

Also it is not just that CS parsers (in the sense used in other answers here) are hard to build, and less efficient. They are are also inadequate to express perspicuously the kinf of context-sensitivity that might be needed. And they do not naturally produce a syntactic structure (such as parse-trees) that is convenient to derive the semantics of the program, i.e. to generate the compiled code.

If you use "127.0.0.1" instead of localhost mysql will use tcp method and you should be able to connect container with:

mysql -h 127.0.0.1 -P 3306 -u root

You can use find_all in the following way to find every a element that has an href attribute, and print each one:

from BeautifulSoup import BeautifulSoup

html = '''<a href="some_url">next</a>
<span class="class"><a href="another_url">later</a></span>'''

soup = BeautifulSoup(html)

for a in soup.find_all('a', href=True):
    print "Found the URL:", a['href']

The output would be:

Found the URL: some_url
Found the URL: another_url

Note that if you're using an older version of BeautifulSoup (before version 4) the name of this method is findAll. In version 4, BeautifulSoup's method names were changed to be PEP 8 compliant, so you should use find_all instead.

If you want all tags with an href, you can omit the name parameter:

href_tags = soup.find_all(href=True)

If origin points to a bare repository on disk, this error can happen if that directory has been moved (even if you update the working copy's remotes). For example

$ mv /path/to/origin /somewhere/else
$ git remote set-url origin /somewhere/else
$ git diff origin/master
fatal: ambiguous argument 'origin': unknown revision or path not in the working tree.

Pulling once from the new origin solves the problem:

$ git stash
$ git pull origin master
$ git stash pop

For me it works:

document.getElementById("checkyear").value = "1";
alert(document.getElementById("checkyear").value);

http://jsfiddle.net/zKNqg/

Maybe your JS is not executed and you need to add a function() {} around it all.

In this answer I am using an example posted by Justin Grammens.

About JSON

JSON stands for JavaScript Object Notation. In JavaScript properties can be referenced both like this object1.name and like this object['name'];. The example from the article uses this bit of JSON.

The Parts
A fan object with email as a key and [email protected] as a value

{
  fan:
    {
      email : '[email protected]'
    }
}

So the object equivalent would be fan.email; or fan['email'];. Both would have the same value of '[email protected]'.

About HttpClient Request

The following is what our author used to make a HttpClient Request. I do not claim to be an expert at all this so if anyone has a better way to word some of the terminology feel free.

public static HttpResponse makeRequest(String path, Map params) throws Exception 
{
    //instantiates httpclient to make request
    DefaultHttpClient httpclient = new DefaultHttpClient();

    //url with the post data
    HttpPost httpost = new HttpPost(path);

    //convert parameters into JSON object
    JSONObject holder = getJsonObjectFromMap(params);

    //passes the results to a string builder/entity
    StringEntity se = new StringEntity(holder.toString());

    //sets the post request as the resulting string
    httpost.setEntity(se);
    //sets a request header so the page receving the request
    //will know what to do with it
    httpost.setHeader("Accept", "application/json");
    httpost.setHeader("Content-type", "application/json");

    //Handles what is returned from the page 
    ResponseHandler responseHandler = new BasicResponseHandler();
    return httpclient.execute(httpost, responseHandler);
}

Map

If you are not familiar with the Map data structure please take a look at the Java Map reference. In short, a map is similar to a dictionary or a hash.

private static JSONObject getJsonObjectFromMap(Map params) throws JSONException {

    //all the passed parameters from the post request
    //iterator used to loop through all the parameters
    //passed in the post request
    Iterator iter = params.entrySet().iterator();

    //Stores JSON
    JSONObject holder = new JSONObject();

    //using the earlier example your first entry would get email
    //and the inner while would get the value which would be '[email protected]' 
    //{ fan: { email : '[email protected]' } }

    //While there is another entry
    while (iter.hasNext()) 
    {
        //gets an entry in the params
        Map.Entry pairs = (Map.Entry)iter.next();

        //creates a key for Map
        String key = (String)pairs.getKey();

        //Create a new map
        Map m = (Map)pairs.getValue();   

        //object for storing Json
        JSONObject data = new JSONObject();

        //gets the value
        Iterator iter2 = m.entrySet().iterator();
        while (iter2.hasNext()) 
        {
            Map.Entry pairs2 = (Map.Entry)iter2.next();
            data.put((String)pairs2.getKey(), (String)pairs2.getValue());
        }

        //puts email and '[email protected]'  together in map
        holder.put(key, data);
    }
    return holder;
}

(I will take down if Justin Grammens does not approve. But if not then thanks Justin for being cool about it.)

Update

I just happend to get a comment about how to use the code and realized that there was a mistake in the return type. The method signature was set to return a string but in this case it wasnt returning anything. I changed the signature to HttpResponse and will refer you to this link on Getting Response Body of HttpResponse the path variable is the url and I updated to fix a mistake in the code.

You could also use this Powershell script I wrote to do just this, and all other Firefox settings as well.

https://bitbucket.org/remyservices/powershell-firefoxpref/wiki/Home

Using this you could easily manage Firefox using computer startup and user logon scripts. See the wiki page for directions on how to use it.

First import the following

import Firebase
import FirebaseAuth

Then

    // Check if logged in
    if (Auth.auth().currentUser != null) {
      // User is logged in   
    }else{
      // User is not logged in
    }

Mac already has Python and a package manager called easy_install, so open Terminal and type

sudo easy_install selenium

Also if you want to check WatchOS.

Swift

let watchOSVersion = WKInterfaceDevice.currentDevice().systemVersion
print("WatchOS version: \(watchOSVersion)")

Objective-C

NSString *watchOSVersion = [[WKInterfaceDevice currentDevice] systemVersion];
NSLog(@"WatchOS version: %@", watchOSVersion);

For those who are newbie like me, Open IIS, expand your server name, choose sites, click on your website. On new install, it is Default web site. Click it. On the right side you have Default document option. Double click it. You will see default.htm, default.asp, index.htm etc.. to the extreme right click add. Enter the full name of your file(including extension) that you want to set it as default. click ok. Open cmd prompt as admin and reset iis. Remove all files from c:\inetpub\wwwroot folder like iisstart.html, index.html etc.

Note: This will automatically create web.config file in your c:\inetpub\wwwroot folder. I didnt have any web.config files in my inetpub or wwwroot folders. This automatically created one for me.

Next time when you enter http(s)://servername, it opens the default page you set.

What about this

def file_len(fname):
  counts = itertools.count()
  with open(fname) as f: 
    for _ in f: counts.next()
  return counts.next()

Please try this (if the browser does not support "onbeforeunload"):

jQuery(document).ready(function($) {

  if (window.history && window.history.pushState) {

    $(window).on('popstate', function() {
      var hashLocation = location.hash;
      var hashSplit = hashLocation.split("#!/");
      var hashName = hashSplit[1];

      if (hashName !== '') {
        var hash = window.location.hash;
        if (hash === '') {
          alert('Back button was pressed.');
        }
      }
    });

    window.history.pushState('forward', null, './#forward');
  }

});

This should do what you want:

preg_replace("/[^0-9]/", "",$c);

Dialect means "the variant of a language". Hibernate, as we know, is database agnostic. It can work with different databases. However, databases have proprietary extensions/native SQL variations, and set/sub-set of SQL standard implementations. Therefore at some point hibernate has to use database specific SQL. Hibernate uses "dialect" configuration to know which database you are using so that it can switch to the database specific SQL generator code wherever/whenever necessary.

In DOS you couldn't use environment variables on the command line, only in batch files, where they used the % sign as a delimiter. If you wanted a literal % sign in a batch file, e.g. in an echo statement, you needed to double it.

This carried over to Windows NT which allowed environment variables on the command line, however for backwards compatibility you still need to double your % signs in a .cmd file.

you have many HTML and java script mistakes includes: tag, using non UTF-8 encoding for form submission, no need,... You must use document.forms.FORMNAME or document.forms[0] for first appear form in page Corrected:

 function validate_frm_new_user_request()_x000D_
{_x000D_
    alert('test');_x000D_
    var valid = true;_x000D_
_x000D_
    if ( document.forms.frm_new_user_request.u_userid.value == "" )_x000D_
    {_x000D_
        alert ( "Please enter your valid ISID Information." );_x000D_
        document.forms.frm_new_user_request.u_userid.focus();_x000D_
        valid = false;_x000D_
  console.log("FALSE::Empty Value ");_x000D_
    }_x000D_
return valid;_x000D_
}

<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml">_x000D_
<head>_x000D_
    <title></title>_x000D_
    <meta content="text/html;charset=UTF-8" http-equiv="content-type" />_x000D_
_x000D_
_x000D_
</head>_x000D_
<body>_x000D_
<form method="post" action="" name="frm_new_user_request" id="frm_new_user_request" onsubmit="return validate_frm_new_user_request();">_x000D_
<center>_x000D_
<table>_x000D_
_x000D_
        <tr align="left">_x000D_
            <td><Label>ISID<em>*:</Label><input maxlength="15" id="u_userid" name="u_userid" size="20" type="text"/></td>_x000D_
            </tr>_x000D_
_x000D_
<tr>_x000D_
            <td align="center" colspan="4">_x000D_
                <input type="image" src="btn.png" border="0" ALT="Create New Request">_x000D_
_x000D_
                </td>_x000D_
        </tr>_x000D_
    </table>_x000D_
</form>_x000D_
</body>_x000D_
</html>

why not just pass an data an object with your key/value pairs then you don't have to worry about encoding

$.ajax({
    type: "Post",
    url: "getdata.php",
    data:{
       timestamp: timestamp,
       uid: id,
       uname: name
    },
    async: true,
    cache: false,
    success: function(data) {


    };
}?);?

For people who are using AppCompatActivity with Toolbar as white background. Do use this code.

Updated: December, 2017

<android.support.design.widget.AppBarLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:theme="@style/ThemeOverlay.AppCompat.Light">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar_edit"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:popupTheme="@style/AppTheme.AppBarOverlay"
        app:title="Edit Your Profile"/>

</android.support.design.widget.AppBarLayout>

unsafe.park is pretty much the same as thread.wait, except that it's using architecture specific code (thus the reason it's 'unsafe'). unsafe is not made available publicly, but is used within java internal libraries where architecture specific code would offer significant optimization benefits. It's used a lot for thread pooling.

So, to answer your question, all the thread is doing is waiting for something, it's not really using any CPU. Considering that your original stack trace shows that you're using a lock I would assume a deadlock is going on in your case.

Yes I know you have almost certainly already solved this issue by now. However, you're one of the top results if someone googles sun.misc.unsafe.park. I figure answering the question may help others trying to understand what this method that seems to be using all their CPU is.

if your table is like this

rowId     col1    col2    col3    col4
 1          a       e       12       2
 2          b       f       42       5
 3          a       e       32       2
 4          b       f       44       5


var grouped = myTable.AsEnumerable().GroupBy(r=> new {pp1 =  r.Field<int>("col1"), pp2 = r.Field<int>("col2")});

in bootstrap use .list-inline css class

<ul class="list-inline">
    <li>Coffee</li>
    <li>Tea</li>
    <li>Milk</li>
</ul>

Ref: https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_ref_txt_list-inline&stacked=h

All steps are correct just change the Step 4 as below

• Step 4: Install the last stable MongoDB version and all the necessary packages on our system

Command: sudo apt-get install mongodb

It has worked for me.

Have you considered installing MacPorts 1.8.0 (release candidate), and keeping MySQL up-to-date that way? That will build MySQL for the architecture and OS that you're using, rather than installing a 10.5 version on 10.6.

You could also use ld option -Bdynamic

gcc <objectfiles> -static -lstatic1 -lstatic2 -Wl,-Bdynamic -ldynamic1 -ldynamic2

All libraries after it (including system ones linked by gcc automatically) will be linked dynamically.

This lightweight version, while not configurable, is pretty easy to tailor as needed, and works in old pythons. Also it is rigid - meaning the results are the same regardless of the existence of attributes.

import xml.etree.ElementTree as ET

from copy import copy

def dictify(r,root=True):
    if root:
        return {r.tag : dictify(r, False)}
    d=copy(r.attrib)
    if r.text:
        d["_text"]=r.text
    for x in r.findall("./*"):
        if x.tag not in d:
            d[x.tag]=[]
        d[x.tag].append(dictify(x,False))
    return d

So:

root = ET.fromstring("<erik><a x='1'>v</a><a y='2'>w</a></erik>")

dictify(root)

Results in:

{'erik': {'a': [{'x': '1', '_text': 'v'}, {'y': '2', '_text': 'w'}]}}

You can use array.nbytes for numpy arrays, for example:

>>> import numpy as np
>>> from sys import getsizeof
>>> a = [0] * 1024
>>> b = np.array(a)
>>> getsizeof(a)
8264
>>> b.nbytes
8192

Hi curious you can validate your google recaptcha at client side also 100% work for me to verify your google recaptcha just see below code
This code at the html body:

 <div class="g-recaptcha" id="rcaptcha" style="margin-left: 90px;" data-sitekey="my_key"></div>
 <span id="captcha" style="margin-left:100px;color:red" />

This code put at head section on call get_action(this) method form button:

function get_action(form) {

var v = grecaptcha.getResponse();
if(v.length == 0)
{
    document.getElementById('captcha').innerHTML="You can't leave Captcha Code empty";
    return false;
}
 if(v.length != 0)
 {
    document.getElementById('captcha').innerHTML="Captcha completed";
    return true; 
 }
}

First, you have to add a ListView, an EditText and a button into your activity_main.xml.

Now, in your ActivityMain:

private EditText editTxt;
private Button btn;
private ListView list;
private ArrayAdapter<String> adapter;
private ArrayList<String> arrayList;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    editTxt = (EditText) findViewById(R.id.editText);
    btn = (Button) findViewById(R.id.button);
    list = (ListView) findViewById(R.id.listView);
    arrayList = new ArrayList<String>();

    // Adapter: You need three parameters 'the context, id of the layout (it will be where the data is shown),
    // and the array that contains the data
    adapter = new ArrayAdapter<String>(getApplicationContext(), android.R.layout.simple_spinner_item, arrayList);

    // Here, you set the data in your ListView
    list.setAdapter(adapter);

    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            // this line adds the data of your EditText and puts in your array
            arrayList.add(editTxt.getText().toString());
            // next thing you have to do is check if your adapter has changed
            adapter.notifyDataSetChanged();
        }
    });
}

This works for me, I hope I helped you

The Old Way: UIAlertView

let alertView = UIAlertView(title: "Default Style", message: "A standard alert.", delegate: self, cancelButtonTitle: "Cancel", otherButtonTitles: "OK")
alertView.alertViewStyle = .Default
alertView.show()

// MARK: UIAlertViewDelegate

 func alertView(alertView: UIAlertView, clickedButtonAtIndex buttonIndex: Int) {
 switch buttonIndex {

    // ...
   }
  }

The New Way: UIAlertController

let alertController = UIAlertController(title: "Default Style", message: "A standard alert.", preferredStyle: .Alert)

let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) { (action) in
// ...
 }
 alertController.addAction(cancelAction)

 let OKAction = UIAlertAction(title: "OK", style: .Default) { (action) in
// ...
 }
 alertController.addAction(OKAction)
 self.presentViewController(alertController, animated: true) {
 // ...
}

Update for Swift 3.0 and higher

    let actionSheetController: UIAlertController = UIAlertController(title: "SomeTitle", message: nil, preferredStyle: .actionSheet)

    let editAction: UIAlertAction = UIAlertAction(title: "Edit Details", style: .default) { action -> Void in

        print("Edit Details")
    }

    let deleteAction: UIAlertAction = UIAlertAction(title: "Delete Item", style: .default) { action -> Void in

        print("Delete Item")
    }

    let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .cancel) { action -> Void in }

    actionSheetController.addAction(editAction)
    actionSheetController.addAction(deleteAction)
    actionSheetController.addAction(cancelAction)

//        present(actionSheetController, animated: true, completion: nil)   // doesn't work for iPad

    actionSheetController.popoverPresentationController?.sourceView = yourSourceViewName // works for both iPhone & iPad

    present(actionSheetController, animated: true) {
        print("option menu presented")
    }

I'm not sure what you're doing, but this will go from JSON to CSV using JavaScript. This is using the open source JSON library, so just download JSON.js into the same folder you saved the code below into, and it will parse the static JSON value in json3 into CSV and prompt you to download/open in Excel.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>JSON to CSV</title>
    <script src="scripts/json.js" type="text/javascript"></script>
    <script type="text/javascript">
    var json3 = { "d": "[{\"Id\":1,\"UserName\":\"Sam Smith\"},{\"Id\":2,\"UserName\":\"Fred Frankly\"},{\"Id\":1,\"UserName\":\"Zachary Zupers\"}]" }

    DownloadJSON2CSV(json3.d);

    function DownloadJSON2CSV(objArray)
    {
        var array = typeof objArray != 'object' ? JSON.parse(objArray) : objArray;

        var str = '';

        for (var i = 0; i < array.length; i++) {
            var line = '';

            for (var index in array[i]) {
                line += array[i][index] + ',';
            }

            // Here is an example where you would wrap the values in double quotes
            // for (var index in array[i]) {
            //    line += '"' + array[i][index] + '",';
            // }

            line.slice(0,line.Length-1); 

            str += line + '\r\n';
        }
        window.open( "data:text/csv;charset=utf-8," + escape(str))
    }

    </script>

</head>
<body>
    <h1>This page does nothing....</h1>
</body>
</html>

Below code is most suitable way to verify a text on page. You can use any one out of 8 locators as per your convenience.

String Verifytext= driver.findElement(By.tagName("body")).getText().trim(); Assert.assertEquals(Verifytext, "Paste the text here which needs to be verified");

I have cooked up a plugin for IntelliJ that – in a way – gives you var in Java. It's a hack, so the usual disclaimers apply, but if you use IntelliJ for your Java development and want to try it out, it's at https://bitbucket.org/balpha/varsity.

What's wrong with this approach:

class Example {
    FileOutputStream fileOutputStream;

    public Example() {
        //System.out.println("Example.Example()");

        debug("Example.Example()",false); // toggle

        try {
            fileOutputStream = new FileOutputStream("debug.txt");
        } catch (Exception exception) {
             debug(exception + Calendar.getInstance().getTime());
        }
    }

    private boolean was911AnInsideJob() {
        System.out.println("Example.was911AnInsideJob()");
        return true;
    }

    public boolean shouldGWBushBeImpeached(){
        System.out.println("Example.shouldGWBushBeImpeached()");
        return true;
    }

    public void setPunishment(int yearsInJail){
        debug("Server.setPunishment(int yearsInJail=" + yearsInJail + ")",true);
    }
}

And before people go crazy about using System.out.println(...) you could always, and should, create some method so that output can be redirected, e.g:

    private void debug (Object object) {
        debug(object,true);
    }

    private void dedub(Object object, boolean debug) {
        if (debug) {
            System.out.println(object);

            // you can also write to a file but make sure the output stream
            // ISN'T opened every time debug(Object object) is called

            fileOutputStream.write(object.toString().getBytes());
        }
    }

use the following from mysql command prompt-

source \\home\\user\\Desktop\\test.sql;

Use no quotation. Even if the path contains space(' ') use no quotation at all.

A Python 2+3 compatible solution is:

import sys

if sys.version_info[0] == 3:
    from urllib.request import urlopen
else:
    # Not Python 3 - today, it is most likely to be Python 2
    # But note that this might need an update when Python 4
    # might be around one day
    from urllib import urlopen


# Your code where you can use urlopen
with urlopen("http://www.python.org") as url:
    s = url.read()

print(s)

Since "Guid" is not nullable, use "Guid.Empty" as default value.

try this

var express = require('express');

var mysql     =    require('mysql');

var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');

var routes = require('./routes/index');
var users = require('./routes/users');

var app = express();

// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');

// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));

app.use('/', routes);
app.use('/users', users);

// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});

// error handlers

// development error handler
// will print stacktrace
console.log(app);
if (app.get('env') === 'development') {
  app.use(function(err, req, res, next) {
    res.status(err.status || 500);
    res.render('error', {
      message: err.message,
      error: err
    });
  });
}

// production error handler
// no stacktraces leaked to user
app.use(function(err, req, res, next) {
  res.status(err.status || 500);
  res.render('error', {
    message: err.message,
    error: {}
  });
});

var con = mysql.createConnection({
  host: "localhost",
  user: "root",
  password: "admin123",
  database: "sitepoint"
});

con.connect(function(err){
  if(err){
    console.log('Error connecting to Db');
    return;
  }
  console.log('Connection established');
});



module.exports = app;

this works for me.....

comboBox.DataSource.To<DataTable>().Select(" valueMember = '" + valueToBeSelected + "'")[0]["DislplayMember"];

I used this and it worked for me in Laravel 5.3.18:

<?php echo URL::to('resources/assets/css/yourcssfile.css') ?>

IMPORTANT NOTE: This will only work when you have already removed "public" from your URL. To do this, you may check out this helpful tutorial.

To compile separately without linking you need to add -c option:

g++ -c myclass.cpp
g++ -c main.cpp
g++ myclass.o main.o
./a.out

This is how you do it column-wise using list comprehension:

[df[col].update((df[col] - df[col].min()) / (df[col].max() - df[col].min())) for col in df.columns]

I got this error because I had forgotten to add my username behind the key in the GCE metadata section. For instance, you are meant to add an entry into the metadata section which looks like this:

sshKeys    username:key

I forgot the username: part and thus when I tried to login with that username, I got the no supported auth methods error.

Or, to turn off the ssh key requirement entirely, check out my other answer.

You can verify your SSH key passphrase by attempting to load it into your SSH agent. With OpenSSH this is done via ssh-add.

Once you're done, remember to unload your SSH passphrase from the terminal by running ssh-add -d.

I know there are many other answers, but here is another way to do it using the sort and rle functions. The function rle stands for Run Length Encoding. It can be used for counts of runs of numbers (see the R man docs on rle), but can also be applied here.

test.data = rep(c(1, 2, 2, 2), 25)
rle(sort(test.data))
## Run Length Encoding
##   lengths: int [1:2] 25 75
##   values : num [1:2] 1 2

If you capture the result, you can access the lengths and values as follows:

## rle returns a list with two items.
result.counts <- rle(sort(test.data))
result.counts$lengths
## [1] 25 75
result.counts$values
## [1] 1 2

All objects in python are implemented via references so the distinction between objects and pointers to objects does not exist in source code.

The python equivalent of NULL is called None (good info here). As all objects in python are implemented via references, you can re-write your struct to look like this:

class Node:
    def __init__(self): #object initializer to set attributes (fields)
        self.val = 0
        self.right = None
        self.left = None

And then it works pretty much like you would expect:

node = Node()
node.val = some_val #always use . as everything is a reference and -> is not used
node.left = Node()

Note that unlike in NULL in C, None is not a "pointer to nowhere": it is actually the only instance of class NoneType. Therefore, as None is a regular object, you can test for it just like any other object:

if node.left == None:
   print("The left node is None/Null.")

Although since None is a singleton instance, it is considered more idiomatic to use is and compare for reference equality:

if node.left is None:
   print("The left node is None/Null.")

For SQL Server 2008

SELECT email,
       CASE
         WHEN EXISTS(SELECT *
                     FROM   Users U
                     WHERE  E.email = U.email) THEN 'Exist'
         ELSE 'Not Exist'
       END AS [Status]
FROM   (VALUES('email1'),
              ('email2'),
              ('email3'),
              ('email4')) E(email)  

For previous versions you can do something similar with a derived table UNION ALL-ing the constants.

/*The SELECT list is the same as previously*/
FROM (
SELECT 'email1' UNION ALL
SELECT 'email2' UNION ALL
SELECT 'email3' UNION ALL
SELECT 'email4'
)  E(email)

Or if you want just the non-existing ones (as implied by the title) rather than the exact resultset given in the question, you can simply do this

SELECT email
FROM   (VALUES('email1'),
              ('email2'),
              ('email3'),
              ('email4')) E(email)  
EXCEPT
SELECT email
FROM Users

For IntelliJ IDEA 2017.2 I did the following to fix this issue: Go to your project structure Now go to SDKs under platform settings and click the green add button. Add your JDK path. In my case it was this path C:\Program Files\Java\jdk1.8.0_144 Now Just go Project under Project settings and select the project SDK.

nmap is a useful tool for this kind of thing

I had similar issue, my problem was with the side padding, and the solution was with, text-indent, I wasn't realize that text indent effect the placeholder side position.

input{
  text-indent: 10px;
}

Isn't just Python doing round half to even, as prescribed by IEEE 754?

Be careful redefining, or using "non-standard" rounding…

(See also https://stackoverflow.com/a/33019948/109839)

Try,

  string[] files =  new DirectoryInfo(dir).GetFiles().Select(o => o.Name).ToArray();

Above line may throw UnauthorizedAccessException. To handle this check out below link

C# Handle System.UnauthorizedAccessException in LINQ

Swift 4 Transition

    UIView.transition(with: view, duration: 3, options: .transitionCurlDown,
                      animations: {
                        // Animations
                        view.isHidden = hidden
    },
                      completion: { finished in
                        // Compeleted
    })

If you use the approach for older swift versions you'll get an error :

Cannot convert value of type '(_) -> ()' to expected argument type '(() -> Void)?'

Useful reference.

MAC users may face this issue when xcode tools are not installed properly. Below is the command to get rid of the issue.

xcode-select --install

From the fine manual:

ALTER TABLE mytable ALTER COLUMN mycolumn DROP NOT NULL;

There's no need to specify the type when you're just changing the nullability.

Here's an extremely simple answer

yourPlot +
  theme(
    panel.border = element_blank(), 
    panel.grid.major = element_blank(),
    panel.grid.minor = element_blank(), 
    axis.line = element_line(colour = "black")
    )

It's that easy. Source: the end of this article

I am using ANGULAR and since it gave me problems the routerLink just add the data-toggle and target in the li tag.... or use jquery like "ZimSystem"

<div class="collapse navbar-collapse" id="navbarSupportedContent">_x000D_
      <ul class="navbar-nav mr-auto">_x000D_
        <li class="nav-item" data-toggle="collapse" data-target=".navbar-collapse.show">_x000D_
          <a class="nav-link" routerLink="/inicio" routerLinkActive="active" >Inicio</a>_x000D_
        </li>_x000D_
      </ul>_x000D_
</div>

This is a similar way I'm using here to generate an unique error code, based on Anton Purin answer, but relying on the more appropriate org.apache.commons.text.RandomStringGenerator instead of the (once, not anymore) deprecated org.apache.commons.lang3.RandomStringUtils:

@Singleton
@Component
public class ErrorCodeGenerator implements Supplier<String> {

    private RandomStringGenerator errorCodeGenerator;

    public ErrorCodeGenerator() {
        errorCodeGenerator = new RandomStringGenerator.Builder()
                .withinRange('0', 'z')
                .filteredBy(t -> t >= '0' && t <= '9', t -> t >= 'A' && t <= 'Z', t -> t >= 'a' && t <= 'z')
                .build();
    }

    @Override
    public String get() {
        return errorCodeGenerator.generate(8);
    }

}

All advices about collision still apply, please be aware of them.

to get this working for a date error I had to delete the error first before calling $setValidity for the form to be marked valid.

delete currentmodal.form.$error.date;
currentmodal.form.$setValidity('myDate', true);

If the XAMPP server is running for the moment, stop XAMPP server.

Follow these steps to change the port number.

Open the file in following location.

[XAMPP Installation Folder]/apache/conf/httpd.conf

Open the httpd.conf file and search for the String:

Listen 80

This is the port number used by XAMMP.

Then search for the string ServerName and update the Port Number which you entered earlier for Listen

Now save and re-start XAMPP server.

The new ASP.NET Web API is a continuation of the previous WCF Web API project (although some of the concepts have changed).

WCF was originally created to enable SOAP-based services. For simpler RESTful or RPCish services (think clients like jQuery) ASP.NET Web API should be good choice.

For us, WCF is used for SOAP and Web API for REST. I wish Web API supported SOAP too. We are not using advanced features of WCF. Here is comparison from MSDN:

ASP.net Web API is all about HTTP and REST based GET,POST,PUT,DELETE with well know ASP.net MVC style of programming and JSON returnable; web API is for all the light weight process and pure HTTP based components. For one to go ahead with WCF even for simple or simplest single web service it will bring all the extra baggage. For light weight simple service for ajax or dynamic calls always WebApi just solves the need. This neatly complements or helps in parallel to the ASP.net MVC.

Check out the podcast : Hanselminutes Podcast 264 - This is not your father's WCF - All about the WebAPI with Glenn Block by Scott Hanselman for more information.

In the scenarios listed below you should go for WCF:

1. If you need to send data on protocols like TCP, MSMQ or MIME
2. If the consuming client just knows how to consume SOAP messages

WEB API is a framework for developing RESTful/HTTP services.

There are so many clients that do not understand SOAP like Browsers, HTML5, in those cases WEB APIs are a good choice.

HTTP services header specifies how to secure service, how to cache the information, type of the message body and HTTP body can specify any type of content like HTML not just XML as SOAP services.

You can either change the thread identity, or P/Invoke WNetAddConnection2. I prefer the latter, as I sometimes need to maintain multiple credentials for different locations. I wrap it into an IDisposable and call WNetCancelConnection2 to remove the creds afterwards (avoiding the multiple usernames error):

using (new NetworkConnection(@"\\server\read", readCredentials))
using (new NetworkConnection(@"\\server2\write", writeCredentials)) {
   File.Copy(@"\\server\read\file", @"\\server2\write\file");
}

It's a one-liner with mutate_at:

dat %>% mutate_at("l1", factor) %>% mutate_at("l2", as.numeric)

Correct syntax looks like this. See MSDN.

SELECT *
  FROM [FAEB].[dbo].[ExportaComisiones] AS f
  JOIN [zCredifiel].[dbo].[optPerson] AS p

  ON p.vTreasuryId COLLATE Latin1_General_CI_AS = f.RFC COLLATE Latin1_General_CI_AS 

Another alternative, combining several of the answers.

zip(*sorted(zip(Y,X)))[1]

In order to work for python3:

list(zip(*sorted(zip(B,A))))[1]

for nested arrays you can use:

$data = [
  'name[0]' = 'value 1',
  'name[1]' = 'value 2',
  'name[2]' = 'value 3',
  'id' = 'value 4',
  ....
];

Script its left and top properties as the number of pixels from the left edge and top edge respectively. It must have position: absolute;

var d = document.getElementById('yourDivId');
d.style.position = "absolute";
d.style.left = x_pos+'px';
d.style.top = y_pos+'px';

Or do it as a function so you can attach it to an event like onmousedown

function placeDiv(x_pos, y_pos) {
  var d = document.getElementById('yourDivId');
  d.style.position = "absolute";
  d.style.left = x_pos+'px';
  d.style.top = y_pos+'px';
}

I use this query

column "Tablespace" format a13
column "Used MB"    format 99,999,999
column "Free MB"    format 99,999,999
column "Total MB"   format 99,999,999
select
   fs.tablespace_name                          "Tablespace",
   (df.totalspace - fs.freespace)              "Used MB",
   fs.freespace                                "Free MB",
   df.totalspace                               "Total MB",
   round(100 * (fs.freespace / df.totalspace)) "Pct. Free"
from
   (select
      tablespace_name,
      round(sum(bytes) / 1048576) TotalSpace
   from
      dba_data_files
   group by
      tablespace_name
   ) df,
   (select
      tablespace_name,
      round(sum(bytes) / 1048576) FreeSpace
   from
      dba_free_space
   group by
      tablespace_name
   ) fs
where
   df.tablespace_name = fs.tablespace_name;