Form validation can be enabled in markup via the data-api or via JavaScript. Automatically enable form validation by adding data-toggle="validator" to your form element.

<form role="form" data-toggle="validator">
   ...
</form>

Or activate validation via JavaScript:

$('#myForm').validator()

and you need to use required flag in input field

For more details Click Here

basic info

• system: mac os 18.0.0
• current user: yutou

the key

1. add the current account to wheel group

sudo dscl . -append /Groups/wheel wheel $(whoami)

2. modify python package mode to 775.

chmod -R 775 ${this_is_your_python_package_path}

the whole thing

• when python3 compiled well, the infomation is just like the question said.
• I try to use pip3 install requests and got:

File "/usr/local/python3/lib/python3.6/os.py", line 220, in makedirs
    mkdir(name, mode)
PermissionError: [Errno 13] Permission denied: 
'/usr/local/python3/lib/python3.6/site-packages/requests'

• so i cd /usr/local/python3/lib/python3.6/site-packages, then ls -al and got:

drwxr-xr-x    6 root   wheel   192B  2 27 18:06 requests/

when i saw this, i understood, makedirs is an action of write, but the requests mode drwxrwxr-x displaied only user root can write the requests file. If add yutou(whoami) to the group wheel, and modify the package to the group wheel can write, then i can write, and the problem solved.

How to add yutou to group wheel? + detect group wheel, sudo dscl . -list /groups GroupMembership, you will find:

wheel                    root

the group wheel only one member root. + add yutou to group wheel, sudo dscl . -append /Groups/wheel wheel yutou. + check, sudo dscl . -list /groups GroupMembership:

wheel                    root yutou

modify the python package mode

chmod -R 775 /usr/local/python3/lib/python3.6

I have a .Net Core 3.1 MSTest project with similar issue. This post provided clues to fix it.

Breaking this down to a simple answer for .Net core 3.1:

• add/ensure nuget package: System.Configuration.ConfigurationManager to project
• add your app.config(xml) to project.

If it is a MSTest project:

• rename file in project to testhost.dll.config

  OR

• Use post-build command provided by DeepSpace101

To substantiate @deceze's claim that the default JSON encoding is UTF-8...

From IETF RFC4627:

JSON text SHALL be encoded in Unicode. The default encoding is UTF-8.

Since the first two characters of a JSON text will always be ASCII characters [RFC0020], it is possible to determine whether an octet stream is UTF-8, UTF-16 (BE or LE), or UTF-32 (BE or LE) by looking at the pattern of nulls in the first four octets.

      00 00 00 xx  UTF-32BE
      00 xx 00 xx  UTF-16BE
      xx 00 00 00  UTF-32LE
      xx 00 xx 00  UTF-16LE
      xx xx xx xx  UTF-8

array=[0,10,20,40]
for e in reversed(array):
  print e

Just wrote before for the same reason (works with any amount of arrays):

/**
 * Returns with the union of the given arrays.
 *
 * @param Any amount of arrays to be united.
 * @returns {array} The union array.
 */
function uniteArrays()
{
    var union = [];
    for (var argumentIndex = 0; argumentIndex < arguments.length; argumentIndex++)
    {
        eachArgument = arguments[argumentIndex];
        if (typeof eachArgument !== 'array')
        {
            eachArray = eachArgument;
            for (var index = 0; index < eachArray.length; index++)
            {
                eachValue = eachArray[index];
                if (arrayHasValue(union, eachValue) == false)
                union.push(eachValue);
            }
        }
    }

    return union;
}    

function arrayHasValue(array, value)
{ return array.indexOf(value) != -1; }

Lots of good answers here, just out of curiosity after looking into this today, is it not best to use setInterval rather than the setTimeout?

setInterval(function() {
location.reload();
}, 30000);

let me know you thoughts.

They serve different purposes. clear() clears an instance of the class, removeAll() removes all the given objects and returns the state of the operation.

Just addition to above answers ..

[FromUri] can also be used to bind complex types from uri parameters instead of passing parameters from querystring

For Ex..

public class GeoPoint
{
    public double Latitude { get; set; } 
    public double Longitude { get; set; }
}

[RoutePrefix("api/Values")]
public ValuesController : ApiController
{
    [Route("{Latitude}/{Longitude}")]
    public HttpResponseMessage Get([FromUri] GeoPoint location) { ... }
}

Can be called like:

http://localhost/api/values/47.678558/-122.130989

Short one:

=IF(D2>C2, ABS((D2-C2)/C2), -1*ABS((D2-C2)/C2)) 

or confusing one (my first attempt):

=IF(D2>C2, IF(C2>0, (D2-C2)/C2, (D2-C2)/ABS(C2)), IF(OR(D2>0,C2>0), (D2-C2)/C2, IF(AND(D2<0, C2<0), (D2-C2)/ABS(C2), 0)))

D2 is this year, C2 is last year.

Use the left function:

QString yourString = "This is a string";
QString leftSide = yourString.left(5);
qDebug() << leftSide; // output "This "

Also have a look at mid() if you want more control.

Array(repeating: a, count: b).reduce(1, *)

Workaround: Rename directory which is not 'working copy' Checkout/update/restore this directory again Move files from renamed directory to new Commit changes

Reason: You made some changes to some files under .svn directory, this breaks 'working copy'

For me, close all application and restart the computer.

When window start, Open Visual studio first, then open browser and click run(F5).

Now it works. I don't know why.

This is the way you should be doing it, and I say this because you are clearly new to C# and should probably try to understand how some basic stuff works!

public int Sum(params int[] customerssalary)
{
   int result = 0;

   for(int i = 0; i < customerssalary.Length; i++)
   {
      result += customerssalary[i];
   }

   return result;
}

with this Sum function, you can use this to calculate the average too...

public decimal Average(params int[] customerssalary)
{
   int sum = Sum(customerssalary);
   decimal result = (decimal)sum / customerssalary.Length;
   return result;
}

the reason for using a decimal type in the second function is because the division can easily return a non-integer result

Others have provided a Linq alternative which is what I would use myself anyway, but with Linq there is no point in having your own functions anyway. I have made the assumption that you have been asked to implement such functions as a task to demonstrate your understanding of C#, but I could be wrong.

Presuming that you are running the 64bit Ubuntu, the fix suggested for "Issue 82711" should solve your problem.

sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 lib32stdc++6

Update: For Ubuntu 15.10 & 16.04 sudo apt-get install lib32z1 lib32ncurses5 lib32stdc++6

From javadoc:

Unlike commit(), which writes its preferences out to persistent storage synchronously, apply() commits its changes to the in-memory SharedPreferences immediately but starts an asynchronous commit to disk and you won't be notified of any failures. If another editor on this SharedPreferences does a regular commit() while a > apply() is still outstanding, the commit() will block until all async commits are completed as well as the commit itself

I seemed to solve this by manually removing the unicorn gem via bundler ("sudo bundler exec gem uninstall unicorn"), then rebundling ("sudo bundle install").

Not sure why it happened though, although the above fix does seem to work.

java.util.Arrays has an 'asList' method. Together with the java.util.List/ArrayList API this gives you all you need:;

private static String[] join(String[] array1, String[] array2) {

    List<String> list = new ArrayList<String>(Arrays.asList(array1));
    list.addAll(Arrays.asList(array2));
    return list.toArray(new String[0]);
}

Update: Sep 2019

As a few people have mentioned, the parameters in paramMap should be accessed using the common MapAPI:

To get a snapshot of the params, when you don't care that they may change:

this.bankName = this.route.snapshot.paramMap.get('bank');

To subscribe and be alerted to changes in the parameter values (typically as a result of the router's navigation)

this.route.paramMap.subscribe( paramMap => {
    this.bankName = paramMap.get('bank');
})

Update: Aug 2017

Since Angular 4, params have been deprecated in favor of the new interface paramMap. The code for the problem above should work if you simply substitute one for the other.

Original Answer

If you inject ActivatedRoute in your component, you'll be able to extract the route parameters

    import {ActivatedRoute} from '@angular/router';
    ...
    
    constructor(private route:ActivatedRoute){}
    bankName:string;
    
    ngOnInit(){
        // 'bank' is the name of the route parameter
        this.bankName = this.route.snapshot.params['bank'];
    }

If you expect users to navigate from bank to bank directly, without navigating to another component first, you ought to access the parameter through an observable:

    ngOnInit(){
        this.route.params.subscribe( params =>
            this.bankName = params['bank'];
        )
    }

For the docs, including the differences between the two check out this link and search for "activatedroute"

As of Java 7:

System.lineSeparator()

Java API : System.lineSeparator

Returns the system-dependent line separator string. It always returns the same value - the initial value of the system property line.separator. On UNIX systems, it returns "\n"; on Microsoft Windows systems it returns "\r\n".

For testing on both laptops on the same wireless and across the internet you could use a service like http://localhost.run/ or https://ngrok.com/

First, the enum methods shouldn't be in all caps. They are methods just like other methods, with the same naming convention.

Second, what you are doing is not the best possible way to set up your enum. Instead of using an array of values for the values, you should use separate variables for each value. You can then implement the constructor like you would any other class.

Here's how you should do it with all the suggestions above:

public enum States {
    ...
    MASSACHUSETTS("Massachusetts",  "MA",   true),
    MICHIGAN     ("Michigan",       "MI",   false),
    ...; // all 50 of those

    private final String full;
    private final String abbr;
    private final boolean originalColony;

    private States(String full, String abbr, boolean originalColony) {
        this.full = full;
        this.abbr = abbr;
        this.originalColony = originalColony;
    }

    public String getFullName() {
        return full;
    }

    public String getAbbreviatedName() {
        return abbr;
    }

    public boolean isOriginalColony(){
        return originalColony;
    }
}

I wanted to sort of add why you would do things that way to the already great answers.

No idea what language you are coming from, but assuming it is a static language, this sort of thing will look familiar. This is how you read a file in java

public class FileInput {

  public static void main(String[] args) {

    File file = new File("C:\\MyFile.txt");
    FileInputStream fis = null;
    BufferedInputStream bis = null;
    DataInputStream dis = null;

    try {
      fis = new FileInputStream(file);

      // Here BufferedInputStream is added for fast reading.
      bis = new BufferedInputStream(fis);
      dis = new DataInputStream(bis);

      // dis.available() returns 0 if the file does not have more lines.
      while (dis.available() != 0) {

      // this statement reads the line from the file and print it to
        // the console.
        System.out.println(dis.readLine());
      }

      // dispose all the resources after using them.
      fis.close();
      bis.close();
      dis.close();

    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
}

Ignoring the whole stream chaining thing, The idea is this

1. Initialize resource that needs to be cleaned up
2. use resource
3. make sure to clean it up

This is how you do it in ruby

File.open("readfile.rb", "r") do |infile|
    while (line = infile.gets)
        puts "#{counter}: #{line}"
        counter = counter + 1
    end
end

Wildly different. Breaking this one down

1. tell the File class how to initialize the resource
2. tell the file class what to do with it
3. laugh at the java guys who are still typing ;-)

Here, instead of handling step one and two, you basically delegate that off into another class. As you can see, that dramatically brings down the amount of code you have to write, which makes things easier to read, and reduces the chances of things like memory leaks, or file locks not getting cleared.

Now, its not like you can't do something similar in java, in fact, people have been doing it for decades now. It's called the Strategy pattern. The difference is that without blocks, for something simple like the file example, strategy becomes overkill due to the amount of classes and methods you need to write. With blocks, it is such a simple and elegant way of doing it, that it doesn't make any sense NOT to structure your code that way.

This isn't the only way blocks are used, but the others (like the Builder pattern, which you can see in the form_for api in rails) are similar enough that it should be obvious whats going on once you wrap your head around this. When you see blocks, its usually safe to assume that the method call is what you want to do, and the block is describing how you want to do it.

This is an example from real life work, I was asked to supply a list of users that bought from our site in the last 6 months but not in the last 3 months.

For me, the most understandable way I can think of is like so:

--Users that bought from us 6 months ago and between 3 months ago.
DECLARE @6To3MonthsUsers table (UserID int,OrderDate datetime)
INSERT @6To3MonthsUsers
    select u.ID,opd.OrderDate
        from OrdersPaid opd
        inner join Orders o
        on opd.OrderID = o.ID
        inner join Users u
        on o.BuyerID = u.ID
        where 1=1 
        and opd.OrderDate BETWEEN DATEADD(m,-6,GETDATE()) and DATEADD(m,-3,GETDATE())

--Users that bought from us in the last 3 months
DECLARE @Last3MonthsUsers table (UserID int,OrderDate datetime)
INSERT @Last3MonthsUsers
    select u.ID,opd.OrderDate
        from OrdersPaid opd
        inner join Orders o
        on opd.OrderID = o.ID
        inner join Users u
        on o.BuyerID = u.ID
        where 1=1 
        and opd.OrderDate BETWEEN DATEADD(m,-3,GETDATE()) and GETDATE()

Now, with these 2 tables in my hands I need to get only the users from the table @6To3MonthsUsers that are not in @Last3MonthsUsers table.

There are 2 simple ways to achieve that:

1. Using Left Join:

   select distinct a.UserID
   from @6To3MonthsUsers a
   left join @Last3MonthsUsers b
   on a.UserID = b.UserID
   where b.UserID is null
   

2. Not in:

   select distinct a.UserID
   from @6To3MonthsUsers a
   where a.UserID not in (select b.UserID from @Last3MonthsUsers b)
   

Both ways will get me the same result, I personally prefer the second way because it's more readable.

You're missing a GROUP BY clause:

SELECT news.id, users.username, news.title, news.date, news.body, COUNT(comments.id)
FROM news
LEFT JOIN users
ON news.user_id = users.id
LEFT JOIN comments
ON comments.news_id = news.id
GROUP BY news.id

The left join is correct. If you used an INNER or RIGHT JOIN then you wouldn't get news items that didn't have comments.

If you need just file names like:

dir/subdir/file1.txt
dir/subdir2/file2.sql
dir2/subdir3/file6.php

(which I use as a source for tar command) you will also need to filter out commit messages.

In order to do this I use following command:

git log --name-only --oneline | grep -v '.{7} '

Grep command excludes (-v param) every line which starts with seven symbols (which is the length of my git hash for git log command) followed by space. So it filters out every git hash message line and leave only lines with file names.

One useful improvement is to append uniq to remove duplicate lines so it will looks as follow:

git log --name-only --oneline | grep -v '.{7} ' | uniq

I had the same problem except I did not know in advance what were the thousands separators and the decimal separator. I ended up writing a library to do this. If you are interested it here it is : https://github.com/GuillaumeLeclerc/number-parsing

You can try this:

//Your class instance
Publication publication = new Publication();

//Get class with full path(with package name)
Class<?> c = Class.forName("com.example.publication.models.Publication");

//Get method
Method  method = c.getDeclaredMethod ("setTitle", String.class);

//set value
method.invoke (publication,  "Value to want to set here...");

The #include directive literally means "copy all the data in that file to this spot." So when you include the header file, it's textually within the code file, and everything in it will be there, give or take the effect of other directives or macro replacements, when the code file (now called the compilation unit or translation unit) is handed off from the preprocessor module to the compiler module.

Which means the declaration and definition of your static member function were really in the same file all along...

Three important steps - How to Task Schedule an excel.xls(m) file

simply:

1. make sure the .vbs file is correct
2. set the Action tab correctly in Task Scheduler
3. don't turn on "Run whether user is logged on or not"

IN MORE DETAIL...

1. Here is an example .vbs file:

`

'   a .vbs file is just a text file containing visual basic code that has the extension renamed from .txt  to .vbs

'Write Excel.xls  Sheet's full path here
strPath = "C:\RodsData.xlsm" 

'Write the macro name - could try including module name
strMacro = "Update" '    "Sheet1.Macro2" 

'Create an Excel instance and set visibility of the instance
Set objApp = CreateObject("Excel.Application") 
objApp.Visible = True   '   or False 

'Open workbook; Run Macro; Save Workbook with changes; Close; Quit Excel
Set wbToRun = objApp.Workbooks.Open(strPath) 
objApp.Run strMacro     '   wbToRun.Name & "!" & strMacro 
wbToRun.Save 
wbToRun.Close 
objApp.Quit 

'Leaves an onscreen message!
MsgBox strPath & " " & strMacro & " macro and .vbs successfully completed!",         vbInformation 
'

`

2. In the Action tab (Task Scheduler):

set Program/script: = C:\Windows\System32\cscript.exe

set Add arguments (optional): = C:\MyVbsFile.vbs

3. Finally, don't turn on "Run whether user is logged on or not".

That should work.

Let me know!

Rod Bowen

Edit: It's been a few years since I originally posted this answer, and even though I got a few upvotes, I'm not really happy with my previous answer, so I have redone it completely. I hope this helps.

When to use GET and POST:

One way to get rid of this error message is to make your form use GET instead of POST. Just keep in mind that this is not always an appropriate solution (read below).

Always use POST if you are performing an action that you don't want to be repeated, if sensitive information is being transferred or if your form contains either a file upload or the length of all data sent is longer than ~2000 characters.

Examples of when to use POST would include:

• A login form
• A contact form
• A submit payment form
• Something that adds, edits or deletes entries from a database
• An image uploader (note, if using GET with an <input type="file"> field, only the filename will be sent to the server, which 99.73% of the time is not what you want.)
• A form with many fields (which would create a long URL if using GET)

In any of these cases, you don't want people refreshing the page and re-sending the data. If you are sending sensitive information, using GET would not only be inappropriate, it would be a security issue (even if the form is sent by AJAX) since the sensitive item (e.g. user's password) is sent in the URL and will therefore show up in server access logs.

Use GET for basically anything else. This means, when you don't mind if it is repeated, for anything that you could provide a direct link to, when no sensitive information is being transferred, when you are pretty sure your URL lengths are not going to get out of control and when your forms don't have any file uploads.

Examples would include:

• Performing a search in a search engine
• A navigation form for navigating around the website
• Performing one-time actions using a nonce or single use password (such as an "unsubscribe" link in an email).

In these cases POST would be completely inappropriate. Imagine if search engines used POST for their searches. You would receive this message every time you refreshed the page and you wouldn't be able to just copy and paste the results URL to people, they would have to manually fill out the form themselves.

If you use POST:

To me, in most cases even having the "Confirm form resubmission" dialog pop up shows that there is a design flaw. By the very nature of POST being used to perform destructive actions, web designers should prevent users from ever performing them more than once by accidentally (or intentionally) refreshing the page. Many users do not even know what this dialog means and will therefore just click on "Continue". What if that was after a "submit payment" request? Does the payment get sent again?

So what do you do? Fortunately we have the Post/Redirect/Get design pattern. The user submits a POST request to the server, the server redirects the user's browser to another page and that page is then retrieved using GET.

Here is a simple example using PHP:

if(!empty($_POST['username'] && !empty($_POST['password'])) {
    $user = new User;
    $user->login($_POST['username'], $_POST['password']);

    if ($user->isLoggedIn()) {
        header("Location: /admin/welcome.php");
        exit;
    }
    else {
        header("Location: /login.php?invalid_login");
    }
}

Notice how in this example even when the password is incorrect, I am still redirecting back to the login form. To display an invalid login message to the user, just do something like:

if (isset($_GET['invalid_login'])) {
    echo "Your username and password combination is invalid";
}

(fiddle: https://jsfiddle.net/ya3ya6/7hfkdnrg/2/ )

1. Usage

Html:

<textarea id='tbMain' ></textarea>
<a id='btnOpen' href='#' >Open</a>

Js:

document.getElementById('btnOpen').onclick = function(){
    openFile(function(txt){
        document.getElementById('tbMain').value = txt; 
    });
}

2. Js Helper functions

function openFile(callBack){
  var element = document.createElement('input');
  element.setAttribute('type', "file");
  element.setAttribute('id', "btnOpenFile");
  element.onchange = function(){
      readText(this,callBack);
      document.body.removeChild(this);
      }

  element.style.display = 'none';
  document.body.appendChild(element);

  element.click();
}

function readText(filePath,callBack) {
    var reader;
    if (window.File && window.FileReader && window.FileList && window.Blob) {
        reader = new FileReader();
    } else {
        alert('The File APIs are not fully supported by your browser. Fallback required.');
        return false;
    }
    var output = ""; //placeholder for text output
    if(filePath.files && filePath.files[0]) {           
        reader.onload = function (e) {
            output = e.target.result;
            callBack(output);
        };//end onload()
        reader.readAsText(filePath.files[0]);
    }//end if html5 filelist support
    else { //this is where you could fallback to Java Applet, Flash or similar
        return false;
    }       
    return true;
}

You have to drop the constraint before drop your table.

You can use those queries to find all FKs in your table and find the FKs in the tables in which your table is used.

Declare @SchemaName VarChar(200) = 'Your Schema name'
Declare @TableName VarChar(200) = 'Your Table Name'

-- Find FK in This table.
SELECT 
    ' IF  EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = 
OBJECT_ID(N''' + 
      '[' + OBJECT_SCHEMA_NAME(FK.parent_object_id) + '].[' + FK.name + ']'
+ ''') AND parent_object_id = OBJECT_ID(N''' + 
      '[' + OBJECT_SCHEMA_NAME(FK.parent_object_id) + '].[' + 
OBJECT_NAME(FK.parent_object_id) + ']' + ''')) ' +

    'ALTER TABLE ' +  OBJECT_SCHEMA_NAME(FK.parent_object_id) +
    '.[' + OBJECT_NAME(FK.parent_object_id) + 
    '] DROP CONSTRAINT ' + FK.name
    , S.name , O.name, OBJECT_NAME(FK.parent_object_id)
FROM sys.foreign_keys AS FK
INNER JOIN Sys.objects As O 
  ON (O.object_id = FK.parent_object_id )
INNER JOIN SYS.schemas AS S 
  ON (O.schema_id = S.schema_id)  
WHERE 
      O.name = @TableName
      And S.name = @SchemaName


-- Find the FKs in the tables in which this table is used
  SELECT 
    ' IF  EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id =   
      OBJECT_ID(N''' + 
      '[' + OBJECT_SCHEMA_NAME(FK.parent_object_id) + '].[' + FK.name + ']'
  + ''') AND parent_object_id = OBJECT_ID(N''' + 
      '[' + OBJECT_SCHEMA_NAME(FK.parent_object_id) + '].[' + 
 OBJECT_NAME(FK.parent_object_id) + ']' + ''')) ' +

    ' ALTER TABLE ' +  OBJECT_SCHEMA_NAME(FK.parent_object_id) +
    '.[' + OBJECT_NAME(FK.parent_object_id) + 
    '] DROP CONSTRAINT ' + FK.name
    , S.name , O.name, OBJECT_NAME(FK.parent_object_id)
FROM sys.foreign_keys AS FK
INNER JOIN Sys.objects As O 
  ON (O.object_id = FK.referenced_object_id )
INNER JOIN SYS.schemas AS S 
  ON (O.schema_id = S.schema_id)  
WHERE 
      O.name = @TableName
      And S.name = @SchemaName 

The quick answer …

As of Swift 2.0, you can use #available in an if or guard to protect code that should only be run on certain systems.

if #available(iOS 9, *) {}


In Objective-C, you need to check the system version and perform a comparison.

[[NSProcessInfo processInfo] operatingSystemVersion] in iOS 8 and above.

As of Xcode 9:

if (@available(iOS 9, *)) {}

The full answer …

In Objective-C, and Swift in rare cases, it's better to avoid relying on the operating system version as an indication of device or OS capabilities. There is usually a more reliable method of checking whether a particular feature or class is available.

Checking for the presence of APIs:

For example, you can check if UIPopoverController is available on the current device using NSClassFromString:

if (NSClassFromString(@"UIPopoverController")) {
    // Do something
}

For weakly linked classes, it is safe to message the class, directly. Notably, this works for frameworks that aren't explicitly linked as "Required". For missing classes, the expression evaluates to nil, failing the condition:

if ([LAContext class]) {
    // Do something
}

Some classes, like CLLocationManager and UIDevice, provide methods to check device capabilities:

if ([CLLocationManager headingAvailable]) {
    // Do something
}

Checking for the presence of symbols:

Very occasionally, you must check for the presence of a constant. This came up in iOS 8 with the introduction of UIApplicationOpenSettingsURLString, used to load Settings app via -openURL:. The value didn't exist prior to iOS 8. Passing nil to this API will crash, so you must take care to verify the existence of the constant first:

if (&UIApplicationOpenSettingsURLString != NULL) {
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
}

Comparing against the operating system version:

Let's assume you're faced with the relatively rare need to check the operating system version. For projects targeting iOS 8 and above, NSProcessInfo includes a method for performing version comparisons with less chance of error:

- (BOOL)isOperatingSystemAtLeastVersion:(NSOperatingSystemVersion)version

Projects targeting older systems can use systemVersion on UIDevice. Apple uses it in their GLSprite sample code.

// A system version of 3.1 or greater is required to use CADisplayLink. The NSTimer
// class is used as fallback when it isn't available.
NSString *reqSysVer = @"3.1";
NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
if ([currSysVer compare:reqSysVer options:NSNumericSearch] != NSOrderedAscending) {
    displayLinkSupported = TRUE;
}

If for whatever reason you decide that systemVersion is what you want, make sure to treat it as an string or you risk truncating the patch revision number (eg. 3.1.2 -> 3.1).

OpenSSL provides a passwd command that can encrypt but doesn't decrypt as it only does hashes. You could also download something like aesutil so you can use a capable and well-known symmetric encryption routine.

For example:

#!/bin/sh    
# using aesutil
SALT=$(mkrand 15) # mkrand generates a 15-character random passwd
MYENCPASS="i/b9pkcpQAPy7BzH2JlqHVoJc2mNTBM=" # echo "passwd" | aes -e -b -B -p $SALT 
MYPASS=$(echo "$MYENCPASS" | aes -d -b -p $SALT)

# and usage
serverControl.sh -u admin -p $MYPASS -c shutdown

Here are two solutions:

Select count(columnname) as countofNotNulls, count(isnull(columnname,1))-count(columnname) AS Countofnulls from table name

OR

Select count(columnname) as countofNotNulls, count(*)-count(columnname) AS Countofnulls from table name

Ensure you are editing the correct configuration file for VIM. Especially if you are using windows, where the file could be named _vimrc instead of .vimrc as on other platforms.

In vim type

:help vimrc

and check your path to the _vimrc/.vimrc file with

:echo $HOME

:echo $VIM

Make sure you are only using one file. If you want to split your configuration into smaller chunks you can source other files from inside your _vimrc file.

:help source

Null Coalescing operator performs just two tasks: it checks whether the variable is set and whether it is null. Have a look at the following example:

<?php
# case 1:
$greeting = 'Hola';
echo $greeting ?? 'Hi There'; # outputs: 'Hola'

# case 2:
$greeting = null;
echo $greeting ?? 'Hi There'; # outputs: 'Hi There'

# case 3:
unset($greeting);
echo $greeting ?? 'Hi There'; # outputs: 'Hi There'

The above code example states that Null Coalescing operator treats a non-existing variable and a variable which is set to NULL in the same way.

Null Coalescing operator is an improvement over the ternary operator. Have a look at the following code snippet comparing the two:

<?php /* example: checking for the $_POST field that goes by the name of 'fullname'*/
# in ternary operator
echo "Welcome ", (isset($_POST['fullname']) && !is_null($_POST['fullname']) ? $_POST['fullname'] : 'Mr. Whosoever.'); # outputs: Welcome Mr. Whosoever.
# in null coalecing operator
echo "Welcome ", ($_POST['fullname'] ?? 'Mr. Whosoever.'); # outputs: Welcome Mr. Whosoever.

So, the difference between the two is that Null Coalescing operator operator is designed to handle undefined variables better than the ternary operator. Whereas, the ternary operator is a shorthand for if-else.

Null Coalescing operator is not meant to replace ternary operator, but in some use cases like in the above example, it allows you to write clean code with less hassle.

Credits: http://dwellupper.io/post/6/php7-null-coalescing-operator-usage-and-examples

The following solution works for ASP.NET 5 (vNext) and it uses QueryHelpers class to build a URI with parameters.

    public Uri GetUri()
    {
        var location = _config.Get("http://iberia.com");
        Dictionary<string, string> values = GetDictionaryParameters();

        var uri = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(location, values);
        return new Uri(uri);
    }

    private Dictionary<string,string> GetDictionaryParameters()
    {
        Dictionary<string, string> values = new Dictionary<string, string>
        {
            { "param1", "value1" },
            { "param2", "value2"},
            { "param3", "value3"}
        };
        return values;
    }

The result URI would have http://iberia.com?param1=value1&param2=value2&param3=value3

Well I argue for not using 0 or NULL pointers at all whenever possible.

Using them will sooner or later lead to segmentation faults in your code. In my experience this, and pointers in gereral is one of the biggest source of bugs in C++

also, it leads to "if-not-null" statements all over your code. Much nicer if you can rely on always a valid state.

There is almost always a better alternative.

Iterate through the string, and use charAt() to get the char. Then treat it as an int, and see if it has a unicode value (a superset of ASCII) which you like.

Break at the first you don't like.

Not a direct answer to your question, but you can get the most commonly used utilities from http://www.mingw.org/ without having to jump through the hoops with that horrible Cygwin installer.

Here is a slightly more informative link http://sourceforge.net/apps/mediawiki/cobcurses/index.php?title=Install-MSYS.

Place ojdbc6.jar in your project resources folder of eclipse. then add the following dependency code in your pom.xml

<dependency>
<groupId> oracle </groupId>
 <artifactId>ojdbc6</artifactId>
 <version>11.2.0</version>
  <scope>system</scope>
  <systemPath>${project.basedir}/src/main/resources/ojdbc6.jar</systemPath>
</dependency>

create a folder in main. like: 'res_notification_btn'

and create tree folder in. like 'drawable' or 'layout'

then in 'build.gradle' add this

sourceSets
            {
                main
                {
                    res
                    {
                        srcDirs = ['src/main/res_notification_btn', 'src/main/res']
                      or
                        srcDir 'src/main/res_notification_btn'
                    }
                }
            }

I wanted to post an answer that there is a case where the variable won't be found.

Cyclical imports may break the module behavior.

For example:

first.py

import second
var = 1

second.py

import first
print(first.var)  # will throw an error because the order of execution happens before var gets declared.

main.py

import first

On this is example it should be obvious, but in a large code-base, this can be really confusing.

If you're on a page and this does not work:

$page_object = get_queried_object();
$page_id     = get_queried_object_id();

you can try to build the permalink manually with PHP so you can lookup the post ID:

// get or make permalink
$url = !empty(get_the_permalink()) ? get_the_permalink() : (isset($_SERVER['HTTPS']) ? "https" : "http") . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
$permalink = strtok($url, '?');

// get post_id using url/permalink
$post_id = url_to_postid($url);

// want the post or postmeta? use get_post() or get_post_meta()
$post = get_post($post_id);
$postmeta = get_post_meta($post_id);

It may not catch every possible permalink (especially since I'm stripping out the query string), but you can modify it to fit your use case.

You can effectively remove scientific notation in printing with this code:

options(scipen=999)

You can try a list comp

>>> exampleSet = [{'type':'type1'},{'type':'type2'},{'type':'type2'}, {'type':'type3'}]
>>> keyValList = ['type2','type3']
>>> expectedResult = [d for d in exampleSet if d['type'] in keyValList]
>>> expectedResult
[{'type': 'type2'}, {'type': 'type2'}, {'type': 'type3'}]

Another way is by using filter

>>> list(filter(lambda d: d['type'] in keyValList, exampleSet))
[{'type': 'type2'}, {'type': 'type2'}, {'type': 'type3'}]

ViewData: It requires type casting for complex data types and checks for null values to avoid errors.

ViewBag: It doesn’t require type casting for complex data types.

Consider the following example:

public class HomeController : Controller
{
    public ActionResult Index()
    {
        var emp = new Employee
        {
            EmpID=101,
            Name = "Deepak",
            Salary = 35000,
            Address = "Delhi"
        };

        ViewData["emp"] = emp;
        ViewBag.Employee = emp;

        return View(); 
    }
}

And the code for View is as follows:

@model MyProject.Models.EmpModel;
@{ 
 Layout = "~/Views/Shared/_Layout.cshtml"; 
 ViewBag.Title = "Welcome to Home Page";
 var viewDataEmployee = ViewData["emp"] as Employee; //need type casting
}

<h2>Welcome to Home Page</h2>
This Year Best Employee is!
<h4>@ViewBag.Employee.Name</h4>
<h3>@viewDataEmployee.Name</h3>

The answer is definitely implementation-specific. To find out definitively for your platform/compiler, just add this output somewhere in your code:

printf ("sizeof time_t is: %d\n", sizeof(time_t));

If the answer is 4 (32 bits) and your data is meant to go beyond 2038, then you have 25 years to migrate your code.

Your data will be fine if you store your data as a string, even if it's something simple like:

FILE *stream = [stream file pointer that you've opened correctly];
fprintf (stream, "%d\n", (int)time_t);

Then just read it back the same way (fread, fscanf, etc. into an int), and you have your epoch offset time. A similar workaround exists in .Net. I pass 64-bit epoch numbers between Win and Linux systems with no problem (over a communications channel). That brings up byte-ordering issues, but that's another subject.

To answer paxdiablo's query, I'd say that it printed "19100" because the program was written this way (and I admit I did this myself in the '80's):

time_t now;
struct tm local_date_time;
now = time(NULL);
// convert, then copy internal object to our object
memcpy (&local_date_time, localtime(&now), sizeof(local_date_time));
printf ("Year is: 19%02d\n", local_date_time.tm_year);

The printf statement prints the fixed string "Year is: 19" followed by a zero-padded string with the "years since 1900" (definition of tm->tm_year). In 2000, that value is 100, obviously. "%02d" pads with two zeros but does not truncate if longer than two digits.

The correct way is (change to last line only):

printf ("Year is: %d\n", local_date_time.tm_year + 1900);

New question: What's the rationale for that thinking?

Another way of accomplishing this is using animation which provides more control.

#content #nav a {
    background-color: #FF0;
    
    /* only animation-duration here is required, rest are optional (also animation-name but it will be set on hover)*/
    animation-duration: 1s; /* same as transition duration */
    animation-timing-function: linear; /* kind of same as transition timing */
    animation-delay: 0ms; /* same as transition delay */
    animation-iteration-count: 1; /* set to 2 to make it run twice, or Infinite to run forever!*/
    animation-direction: normal; /* can be set to "alternate" to run animation, then run it backwards.*/
    animation-fill-mode: none; /* can be used to retain keyframe styling after animation, with "forwards" */
    animation-play-state: running; /* can be set dynamically to pause mid animation*/
    
    /* declaring the states of the animation to transition through */
    /* optionally add other properties that will change here, or new states (50% etc) */
    @keyframes onHoverAnimation {
    0% {
      background-color: #FF0;  
    }
    100% {
      background-color: #AD310B;
    }
  }
}

#content #nav a:hover {
    /* animation wont run unless the element is given the name of the animation. This is set on hover */
    animation-name: onHoverAnimation;
}

trunk8 jQuery plugin supports multiple lines, and can use any html, not just ellipsis characters, for the truncation suffix: https://github.com/rviscomi/trunk8

Demo here: http://jrvis.com/trunk8/

As you can see in the below source code, BeanUtils.copyProperties internally uses reflection and there's additional internal cache lookup steps as well which is going to add cost wrt performance

 private static void copyProperties(Object source, Object target, @Nullable Class<?> editable,
                @Nullable String... ignoreProperties) throws BeansException {

            Assert.notNull(source, "Source must not be null");
            Assert.notNull(target, "Target must not be null");

            Class<?> actualEditable = target.getClass();
            if (editable != null) {
                if (!editable.isInstance(target)) {
                    throw new IllegalArgumentException("Target class [" + target.getClass().getName() +
                            "] not assignable to Editable class [" + editable.getName() + "]");
                }
                actualEditable = editable;
            }
            **PropertyDescriptor[] targetPds = getPropertyDescriptors(actualEditable);**
            List<String> ignoreList = (ignoreProperties != null ? Arrays.asList(ignoreProperties) : null);

            for (PropertyDescriptor targetPd : targetPds) {
                Method writeMethod = targetPd.getWriteMethod();
                if (writeMethod != null && (ignoreList == null || !ignoreList.contains(targetPd.getName()))) {
                    PropertyDescriptor sourcePd = getPropertyDescriptor(source.getClass(), targetPd.getName());
                    if (sourcePd != null) {
                        Method readMethod = sourcePd.getReadMethod();
                        if (readMethod != null &&
                                ClassUtils.isAssignable(writeMethod.getParameterTypes()[0], readMethod.getReturnType())) {
                            try {
                                if (!Modifier.isPublic(readMethod.getDeclaringClass().getModifiers())) {
                                    readMethod.setAccessible(true);
                                }
                                Object value = readMethod.invoke(source);
                                if (!Modifier.isPublic(writeMethod.getDeclaringClass().getModifiers())) {
                                    writeMethod.setAccessible(true);
                                }
                                writeMethod.invoke(target, value);
                            }
                            catch (Throwable ex) {
                                throw new FatalBeanException(
                                        "Could not copy property '" + targetPd.getName() + "' from source to target", ex);
                            }
                        }
                    }
                }
            }
        }

So it's better to use plain setters given the cost reflection

I found logs of Apache Tomcat/9.0.33 version in below path:

In tail -f /opt/tomcat/logs/catalina.out

Thanks.

Before answering when to use which one, a little background:

edit: I should mention that this comparison is really from the perspective of using them in a browser with JavaScript. It's not the way either data format has to be used, and there are plenty of good parsers which will change the details to make what I'm saying not quite valid.

JSON is both more compact and (in my view) more readable - in transmission it can be "faster" simply because less data is transferred.

In parsing, it depends on your parser. A parser turning the code (be it JSON or XML) into a data structure (like a map) may benefit from the strict nature of XML (XML Schemas disambiguate the data structure nicely) - however in JSON the type of an item (String/Number/Nested JSON Object) can be inferred syntactically, e.g:

myJSON = {"age" : 12,
          "name" : "Danielle"}

The parser doesn't need to be intelligent enough to realise that 12 represents a number, (and Danielle is a string like any other). So in javascript we can do:

anObject = JSON.parse(myJSON);
anObject.age === 12 // True
anObject.name == "Danielle" // True
anObject.age === "12" // False

In XML we'd have to do something like the following:

<person>
    <age>12</age>
    <name>Danielle</name>
</person>

(as an aside, this illustrates the point that XML is rather more verbose; a concern for data transmission). To use this data, we'd run it through a parser, then we'd have to call something like:

myObject = parseThatXMLPlease();
thePeople = myObject.getChildren("person");
thePerson = thePeople[0];
thePerson.getChildren("name")[0].value() == "Danielle" // True
thePerson.getChildren("age")[0].value() == "12" // True

Actually, a good parser might well type the age for you (on the other hand, you might well not want it to). What's going on when we access this data is - instead of doing an attribute lookup like in the JSON example above - we're doing a map lookup on the key name. It might be more intuitive to form the XML like this:

<person name="Danielle" age="12" />

But we'd still have to do map lookups to access our data:

myObject = parseThatXMLPlease();
age = myObject.getChildren("person")[0].getAttr("age");

EDIT: Original:

In most programming languages (not all, by any stretch) a map lookup such as this will be more costly than an attribute lookup (like we got above when we parsed the JSON).

This is misleading: remember that in JavaScript (and other dynamic languages) there's no difference between a map lookup and a field lookup. In fact, a field lookup is just a map lookup.

If you want a really worthwhile comparison, the best is to benchmark it - do the benchmarks in the context where you plan to use the data.

As I have been typing, Felix Kling has already put up a fairly succinct answer comparing them in terms of when to use each one, so I won't go on any further.

I'm not sure how helpful this answer is for your current application, but it may prove helpful for the next applications that you will be developing.

As iOS does not use Java like Android, your options are quite limited:

1) if your application is written mostly in C/C++ using JNI, you can write a wrapper and interface it with the iOS (i.e. provide callbacks from iOS to your JNI written function). There may be frameworks out there that help you do this easier, but there's still the problem of integrating the application and adapting it to the framework (and of course the fact that the application has to be written in C/C++).

2) rewrite it for iOS. I don't know whether there are any good companies that do this for you. Also, due to the variety of applications that can be written which can use different services and API, there may not be any software that can port it for you (I guess this kind of software is like a gold mine heh) or do a very good job at that.

3) I think that there are Java->C/C++ converters, but there won't help you at all when it comes to API differences. Also, you may find yourself struggling more to get the converted code working on any of the platforms rather than rewriting your application from scratch for iOS.

The problem depends quite a bit on the services and APIs your application is using. I haven't really look this up, but there may be some APIs that provide certain functionality in Android that iOS doesn't provide.

Using C/C++ and natively compiling it for the desired platform looks like the way to go for Android-iOS-Win7Mobile cross-platform development. This gets you somewhat of an application core/kernel which you can use to do the actual application logic.

As for the OS specific parts (APIs) that your application is using, you'll have to set up communication interfaces between them and your application's core.

C# version of @yonatan-kiron's answer, and Selenium's using statement from their example code.

ChromeOptions chromeOptions = new ChromeOptions();
chromeOptions.AddArgument("--window-size=1300,1000");

using (IWebDriver driver = new ChromeDriver(chromeOptions))
{
    ...
}

For Windows HTTP, you can't beat Fiddler. You can use it as a reverse proxy for port-forwarding on a web server. It doesn't necessarily need IE, either. It can use other clients.

I am not sure it's possible with an "automatic" variable. You can always declare one for yourself and increment it:

$letters = { 'A', 'B', 'C' }
$letters | % {$counter = 0}{...;$counter++}

Or use a for loop instead...

for ($counter=0; $counter -lt $letters.Length; $counter++){...}

Select JoiningDate ,Dateadd (day , 30 , JoiningDate)
from Emp

Select JoiningDate ,DateAdd (month , 10 , JoiningDate)
from Emp

Select JoiningDate ,DateAdd (year , 10 , JoiningDate )
from Emp

Select DateAdd(Hour, 10 , JoiningDate )
from emp


Select dateadd (hour , 10 , getdate()), getdate()

Select dateadd (hour , 10 , joiningDate)
from Emp


Select DateAdd (Second , 120 , JoiningDate ) , JoiningDate 
From EMP

Use this:

android:background="@android:color/transparent"

Use a progress bar with the style set to Marquee. This represents an indeterminate progress bar.

myProgressBar.Style = ProgressBarStyle.Marquee;

You can also use the MarqueeAnimationSpeed property to set how long it will take the little block of color to animate across your progress bar.

you can also use this code

public static double roundToDecimals(double d, int c)  
{   
   int temp = (int)(d * Math.pow(10 , c));  
   return ((double)temp)/Math.pow(10 , c);  
}

It gives you control of how many numbers after the point are needed.

d = number to round;   
c = number of decimal places  

think it will be helpful

Separate the business rules for age from the actions e.g. (NB just typed, not checked)

enum eAgerange { eChild, eYouth, eAdult, eAncient};
eAgeRange ar;
if(age <= 8) ar = eChild;
else if(age <= 15) ar = eYouth;
else if(age <= 100) ar = eAdult;
else ar = eAncient;
switch(ar)
{
 case eChild: 
     // action
 case eYouth:
     // action
 case eAdult:
     // action
 case eAncient:
     // action
 default: throw new NotImplementedException($"Oops {ar.ToString()} not handled");
}   

`

First name would be

"([a-zA-Z]{3,30}\s*)+"

If you need the whole first name part to be shorter than 30 letters, you need to check that seperately, I think. The expression ".{3,30}" should do that.

Your last name requirements would translate into

"[a-zA-Z]{3,30}"

but you should check these. There are plenty of last names containing spaces.

Observation

• If there is a single object and you want to push whole object into an array then no need to iterate the object.

Try this :

var feed = {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"};_x000D_
_x000D_
var data = [];_x000D_
data.push(feed);_x000D_
_x000D_
console.log(data);

Instead of :

var my_json = {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"};_x000D_
_x000D_
var data = [];_x000D_
for(var i in my_json) {_x000D_
    data.push(my_json[i]);_x000D_
}_x000D_
_x000D_
console.log(data);

Here is the another implementation from NGenerics team:

NGenerics PriorityQueue

Make a batch file and call the bacth file in Window.open. Here how it works

1. make a file in notepad
2. write your script : start wmplayer "\dotnet\sc\1234.mp4" /fullscreen
3. save as : test.bat in \dotnet\sc\test.bat

in html

window.open('file://dotnet/sc/test.bat')

Enjoy..

Read this doc which will explain to you what to do.
https://devcenter.heroku.com/articles/buildpacks

Setting a buildpack on an application

You can change the buildpack used by an application by setting the buildpack value.
When the application is next pushed, the new buildpack will be used.

$ heroku buildpacks:set heroku/php

Buildpack set. Next release on random-app-1234 will use heroku/php.
Run git push heroku master to create a new release using this buildpack.

This is whay its not working for you since you did not set it up.

... When the application is next pushed, the new buildpack will be used.

You may also specify a buildpack during app creation:

$ heroku create myapp --buildpack heroku/python

This is what worked for me:

In the build.gradle file, setting the minSdkVersion under defaultConfig:

Good Luck...

Time complexity :

The caching feature reduces the normal way of calculating Fibonacci series from O(2^n) to O(n) by eliminating the repeats in the recursive tree of Fibonacci series :

Code :

import sys

table = [0]*1000

def FastFib(n):
    if n<=1:
        return n
    else:
        if(table[n-1]==0):
            table[n-1] = FastFib(n-1)
        if(table[n-2]==0):
            table[n-2] = FastFib(n-2)
        table[n] = table[n-1] + table[n-2]
        return table[n]

def main():
    print('Enter a number : ')
    num = int(sys.stdin.readline())
    print(FastFib(num))

if __name__=='__main__':
    main()

I just create a "help" version of the function. Shows up right below the function in autocomplete - the user can select it instead in an adjacent cell for instructions.

Public Function Foo(param1 as range, param2 as string) As String

    Foo = "Hello world"

End Function

Public Function Foo_Help() as String

Foo_Help = "The Foo function was designed to return the Foo value for a specified range a cells given a specified constant." & CHR(10) & "Parameters:" & CHR(10)
& "  param1 as Range   :   Specifies the range of cells the Foo function should operate on." & CHR(10)
&"  param2 as String  :   Specifies the constant the function should use to calculate Foo"
&" contact the Foo master at [email protected] for more information."

END FUNCTION

The carriage returns improve readability with wordwrap on. 2 birds with one stone, now the function has some documentation.

ArgumentException:

ArgumentException is thrown when a method is invoked and at least one of the passed arguments does not meet the parameter specification of the called method. All instances of ArgumentException should carry a meaningful error message describing the invalid argument, as well as the expected range of values for the argument.

A few subclasses also exist for specific types of invalidity. The link has summaries of the subtypes and when they should apply.

Set $JAVA_HOME environment variable on latest or older Mac OSX.

Download & Install install JDK

1. First, install JDK
2. Open terminal check java version

$ java -version

Set JAVA_HOME environment variable

1. Open .zprofile file

$ open -t .zprofile

Or create . zprofile file

$ open -t .zprofile

2. write in .zprofile

export JAVA_HOME=$(/usr/libexec/java_home)

Save .zprofile and close the bash file & then write in the terminal for work perfectly.

$ source .zprofile

Setup test in terminal

$ echo $JAVA_HOME  
/Library/Java/JavaVirtualMachines/jdk-13.0.1.jdk/Contents/Home

You can create a file that attempts to include a bogus system header. If you run gcc in verbose mode on such a source, it will list all the system include locations as it looks for the bogus header.

$ echo "#include <bogus.h>" > t.c; gcc -v t.c; rm t.c

[..]

#include "..." search starts here:
#include <...> search starts here:
 /usr/local/include
 /usr/lib/gcc/i686-apple-darwin9/4.0.1/include
 /usr/include
 /System/Library/Frameworks (framework directory)
 /Library/Frameworks (framework directory)
End of search list.

[..]

t.c:1:32: error: bogus.h: No such file or directory

Just to add in the reverse as a trick, at a PowerShell prompt you can do:

ii .

or

start .

to open a Windows Explorer window in your current directory.

string.Format("{0}", myObj);

string.Format will format null as an empty string and call ToString() on non-null objects. As I understand it, this is what you were looking for.

You'd need a custom-designed select box with CSS and JavaScript. You'd need to make absolutely sure it degrades perfectly to a standard select element should a user have JavaScript disabled.

IMO, it's just not worth the effort. Stick with font stylings within the select to make it close to your site's design; leave the borders, etc., to the box elements.

Another way this could be accomplished is by using the Start-Transcript and Stop-Transcript commands, respectively before and after command execution. This would capture the entire session including commands.

Start-Transcript

Stop-Transcript

For this particular case Out-File is probably your best bet though.

System.String (with capital S) is already nullable, you do not need to declare it as such.

(string? myStr) is wrong.

Simply add spaces for { 2 3 4 5 6 } like these:

cout<<"{";

for(){
    cout<<" "<<n;    //n is the element to print !
}

cout<<" }";

Using a simple link for an action such as removing a record looks dangerous to me : what if a crawler is trying to index your pages ? It will ignore any javascript and follow every link, probably not a good thing.

You'd better use a form with method="POST".

And then you will have an event "OnSubmit" to do exactly what you want...

var y = [1,2,3,4,5,6,7,8,9,10];_x000D_
_x000D_
console.log(y.slice((y.length - 5), y.length))

you can do this!

I was fetching a windows-1252 encoded file via cURL and the mb_detect_encoding(curl_exec($ch)); returned UTF-8. Tried utf8_encode(curl_exec($ch)); and the characters were correct.

I was having issue with connecting to MS SQL 2005 using Windows Authentication. I was able to solve the issue with help from this and other forums. Here is what I did:

1. Install the JTDS driver
2. Do not use the "domain= " property in the jdbc:jtds:://[:][/][;=[;...]] string
3. Install the ntlmauth.dll in c:\windows\system32 directory (registration of the dll was not required) on the web server machine.
4. Change the logon identity for the Apache Tomcat service to a domain User with access to the SQL database server (it was not necessary for the user to have access to the dbo.master).

My environment: Windows XP clinet hosting Apache Tomcat 6 with MS SQL 2005 backend on Windows 2003

For MIUI users, apart for usual USB debugging option be sure to enable these settings as well:

Install via USB
USB debugging(Security settings)

then accept the prompt when you try installing app again.

Michael's suggestion of running your own nbviewer instance is a good one I used in the past with an Enterprise Github server.

Another lightweight alternative is to have a cell at the end of your notebook that does a shell call to nbconvert so that it's automatically refreshed after running the whole thing:

!ipython nbconvert <notebook name>.ipynb --to html

EDIT: With Jupyter/IPython's Big Split, you'll probably want to change this to !jupyter nbconvert <notebook name>.ipynb --to html now.

git checkout branch_name file_name

Example:

git checkout master App.java

This will not work if your branch name has a period in it.

git checkout "fix.june" alive.html
error: pathspec 'fix.june' did not match any file(s) known to git.

Using aggregate is the right approach, but you need to $unwind the list array before applying the $match so that you can filter individual elements and then use $group to put it back together:

db.test.aggregate([
    { $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
    { $unwind: '$list'},
    { $match: {'list.a': {$gt: 3}}},
    { $group: {_id: '$_id', list: {$push: '$list.a'}}}
])

outputs:

{
  "result": [
    {
      "_id": ObjectId("512e28984815cbfcb21646a7"),
      "list": [
        4,
        5
      ]
    }
  ],
  "ok": 1
}

MongoDB 3.2 Update

Starting with the 3.2 release, you can use the new $filter aggregation operator to do this more efficiently by only including the list elements you want during a $project:

db.test.aggregate([
    { $match: {_id: ObjectId("512e28984815cbfcb21646a7")}},
    { $project: {
        list: {$filter: {
            input: '$list',
            as: 'item',
            cond: {$gt: ['$$item.a', 3]}
        }}
    }}
])

The active firewall on the server might be causing this. You can try to (temporarily) turn it off and see if it resolves the issue.

If it is indeed caused by the firewall, you should allegedly be able to resolve it by adding an inbound rule for TCP port 1433 set to allowed, but I personally haven't been able to connect this way.

There are several ways to achieve this.

Probably the easiest would be to use JavaScript to change the form's action.

<input type="submit" value="SecondServlet" onclick="form.action='SecondServlet';">

But this of course won't work when the enduser has JS disabled (mobile browsers, screenreaders, etc).

Another way is to put the second button in a different form, which may or may not be what you need, depending on the concrete functional requirement, which is not clear from the question at all.

<form action="FirstServlet" method="Post">
    Last Name: <input type="text" name="lastName" size="20">
    <br><br>
    <input type="submit" value="FirstServlet">
</form>
<form action="SecondServlet" method="Post">
    <input type="submit"value="SecondServlet">
</form>

Note that a form would on submit only send the input data contained in the very same form, not in the other form.

Again another way is to just create another single entry point servlet which delegates further to the right servlets (or preferably, the right business actions) depending on the button pressed (which is by itself available as a request parameter by its name):

<form action="MainServlet" method="Post">
    Last Name: <input type="text" name="lastName" size="20">
    <br><br>
    <input type="submit" name="action" value="FirstServlet">
    <input type="submit" name="action" value="SecondServlet">
</form>

with the following in MainServlet

String action = request.getParameter("action");

if ("FirstServlet".equals(action)) {
    // Invoke FirstServlet's job here.
} else if ("SecondServlet".equals(action)) {
    // Invoke SecondServlet's job here.
}

This is only not very i18n/maintenance friendly. What if you need to show buttons in a different language or change the button values while forgetting to take the servlet code into account?

A slight change is to give the buttons its own fixed and unique name, so that its presence as request parameter could be checked instead of its value which would be sensitive to i18n/maintenance:

<form action="MainServlet" method="Post">
    Last Name: <input type="text" name="lastName" size="20">
    <br><br>
    <input type="submit" name="first" value="FirstServlet">
    <input type="submit" name="second" value="SecondServlet">
</form>

with the following in MainServlet

if (request.getParameter("first") != null) {
    // Invoke FirstServlet's job here.
} else if (request.getParameter("second") != null) {
    // Invoke SecondServlet's job here.
}

Last way would be to just use a MVC framework like JSF so that you can directly bind javabean methods to buttons, but that would require drastic changes to your existing code.

<h:form>
    Last Name: <h:inputText value="#{bean.lastName}" size="20" />
    <br/><br/>
    <h:commandButton value="First" action="#{bean.first}" />
    <h:commandButton value="Second" action="#{bean.Second}" />
</h:form>

with just the following javabean instead of a servlet

@ManagedBean
@RequestScoped
public class Bean {

    private String lastName; // +getter+setter

    public void first() {
        // Invoke original FirstServlet's job here.
    }

    public void second() {
        // Invoke original SecondServlet's job here.
    }

}

Here is a working plunkr with a filter and sortBy pipe. https://plnkr.co/edit/vRvnNUULmBpkbLUYk4uw?p=preview

As developer033 mentioned in a comment, you are passing in a single value to the filter pipe, when the filter pipe is expecting an array of values. I would tell the pipe to expect a single value instead of an array

export class FilterPipe implements PipeTransform {
    transform(items: any[], term: string): any {
        // I am unsure what id is here. did you mean title?
        return items.filter(item => item.id.indexOf(term) !== -1);
    }
}

I would agree with DeborahK that impure pipes should be avoided for performance reasons. The plunkr includes console logs where you can see how much the impure pipe is called.

While working on windows, I've installed webpack locally and it fixed my problem

So, on your command prompt, go to the directory of which you want to run webpack, install webpack locally (without the -g) and enjoy...

ALTER TABLE TABLE_NAME ADD (COLUMN_NAME_NEW varchar2(4000 char));
update TABLE_NAME set COLUMN_NAME_NEW = COLUMN_NAME;

ALTER TABLE TABLE_NAME DROP COLUMN COLUMN_NAME;
ALTER TABLE TABLE_NAME rename column COLUMN_NAME_NEW to COLUMN_NAME;

Instead of using background-image you can use img directly and to get the image to spread all the width of the viewport try using max-width:100%; and please remember don't apply any padding or margin to your main container div as they will increase the total width of the container. Using this rule you can have a image width equal to the width of the browser and the height will also change according to the aspect ratio. Thanks.

Edit: Changing the image on different size of the window

$(window).resize(function(){_x000D_
  var windowWidth = $(window).width();_x000D_
  var imgSrc = $('#image');_x000D_
  if(windowWidth <= 400){   _x000D_
    imgSrc.attr('src','http://cdn.sstatic.net/Sites/stackoverflow/company/img/logos/so/so-icon.png?v=c78bd457575a');_x000D_
  }_x000D_
  else if(windowWidth > 400){_x000D_
    imgSrc.attr('src','http://i.stack.imgur.com/oURrw.png');_x000D_
  }_x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="image-container">_x000D_
  <img id="image" src="http://cdn.sstatic.net/Sites/stackoverflow/company/img/logos/so/so-icon.png?v=c78bd457575a" alt=""/>_x000D_
</div>

In this way you change your image in different size of the browser.

If you are using the application context, like this:

final AlertDialog.Builder builder = new AlertDialog.Builder(getApplicationContext());

change it to an activity context like this:

final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);

I like Mozzi's answer but found that it did not retain the default fonts that are user specific. The text all appeared in a system font as normal text. The code below retains the user's favourite fonts, while making it only a little longer. It is based on Mozzi's approach, uses a regular expression to replace the default body text and places the user's chosen Body text where it belongs by using GetInspector.WordEditor. I found that the call to GetInspector did not populate the HTMLbody as dimitry streblechenko says above in this thread, at least, not in Office 2010, so the object is still displayed in my code. In passing, please note that it is important that the MailItem is created as an Object, not as a straightforward MailItem - see here for more. (Oh, and sorry to those of different tastes, but I prefer longer descriptive variable names so that I can find routines!)

Public Function GetSignedMailItemAsObject(ByVal ToAddress As String, _
                      ByVal Subject As String, _
                      ByVal Body As String, _
                      SignatureName As String) As Object
'================================================================================================================='Creates a new MailItem in HTML format as an Object.
'Body, if provided, replaces all text in the default message.
'A Signature is appended at the end of the message.
'If SignatureName is invalid any existing default signature is left in place.
'=================================================================================================================
' REQUIRED REFERENCES
' VBScript regular expressions (5.5)
' Microsoft Scripting Runtime
'=================================================================================================================
Dim OlM As Object               'Do not define this as Outlook.MailItem.  If you do, some things will work and some won't (i.e. SendUsingAccount)
Dim Signature As String
Dim Doc As Word.Document
Dim Regex As New VBScript_RegExp_55.RegExp       '(can also use use Object if VBScript is not Referenced)

Set OlM = Application.CreateItem(olMailItem)
With OlM
    .To = ToAddress
    .Subject = Subject
    'SignatureName is the exactname that you gave your signature in the Message>Insert>Signature Dialog
    Signature = GetSignature(SignatureName)
    If Signature <> vbNullString Then
'        Should really strip the terminal </body tag out of signature by removing all characters from the start of the tag
'        but Outlook seems to handle this OK if you don't bother.
        .Display                                'Needed.  Without it, there is no existing HTMLbody available to work with.
        Set Doc = OlM.GetInspector.WordEditor   'Get any existing body with the WordEditor and delete all of it
        Doc.Range(Doc.Content.Start, Doc.Content.End) = vbNullString 'Delete all existing content - we don't want any default signature
        'Preserve all local email formatting by placing any new body text, followed by the Signature, into the empty HTMLbody.
        With Regex
            .IgnoreCase = True                  'Case insensitive
            .Global = False                     'Regex finds only the first match
            .MultiLine = True                   'In case there are stray EndOfLines (there shouldn't be in HTML but Word exports of HTML can be dire)
            .Pattern = "(<body.*)(?=<\/body)"   'Look for the whole HTMLbody but do NOT include the terminal </body tag in the value returned
            OlM.HTMLbody = .Replace(OlM.HTMLbody, "$1" & Signature)
        End With ' Regex
        Doc.Range(Doc.Content.Start, Doc.Content.Start) = Body 'Place the required Body before the signature (it will get the default style)
        .Close olSave                           'Close the Displayed MailItem (actually Object) and Save it.  If it is left open some later updates may fail.
    End If ' Signature <> vbNullString
End With ' OlM
Set GetSignedMailItemAsObject = OlM
End Function

Private Function GetSignature(sigName As String) As String
Dim oTextStream As Scripting.TextStream
Dim oSig As Object
Dim appDataDir, Signature, sigPath, fileName As String
Dim FileSys As Scripting.FileSystemObject        'Requires Microsoft Scripting Runtime to be available
    appDataDir = Environ("APPDATA") & "\Microsoft\Signatures"
    sigPath = appDataDir & "\" & sigName & ".htm"
    Set FileSys = CreateObject("Scripting.FileSystemObject")
    Set oTextStream = FileSys.OpenTextFile(sigPath)
    Signature = oTextStream.ReadAll
    ' fix relative references to images, etc. in Signature
    ' by making them absolute paths, OL will find the image
    fileName = Replace(sigName, ".htm", "") & "_files/"
    Signature = Replace(Signature, fileName, appDataDir & "\" & fileName)
    GetSignature = Signature
End Function

If you make your parent element be "position: relative", then it will be the "offset parent" for the stuff you're tracking mouse events over. Thus the jQuery "position()" will be relative to that.

You need to add it to your ~/.profile or ~/.bashrc file. 

export PATH="$PATH:/path/to/dir"

Depending on what you're doing, you also may want to symlink to binaries:

cd /usr/bin
sudo ln -s /path/to/binary binary-name

Note that this will not automatically update your path for the remainder of the session. To do this, you should run:

source ~/.profile 
or
source ~/.bashrc

The following reads a file passed as an argument line by line:

while IFS= read -r line; do
    echo "Text read from file: $line"
done < my_filename.txt

This is the standard form for reading lines from a file in a loop. Explanation:

• IFS= (or IFS='') prevents leading/trailing whitespace from being trimmed.
• -r prevents backslash escapes from being interpreted.

Or you can put it in a bash file helper script, example contents:

#!/bin/bash
while IFS= read -r line; do
    echo "Text read from file: $line"
done < "$1"

If the above is saved to a script with filename readfile, it can be run as follows:

chmod +x readfile
./readfile filename.txt

If the file isn’t a standard POSIX text file (= not terminated by a newline character), the loop can be modified to handle trailing partial lines:

while IFS= read -r line || [[ -n "$line" ]]; do
    echo "Text read from file: $line"
done < "$1"

Here, || [[ -n $line ]] prevents the last line from being ignored if it doesn't end with a \n (since read returns a non-zero exit code when it encounters EOF).

If the commands inside the loop also read from standard input, the file descriptor used by read can be chanced to something else (avoid the standard file descriptors), e.g.:

while IFS= read -r -u3 line; do
    echo "Text read from file: $line"
done 3< "$1"

(Non-Bash shells might not know read -u3; use read <&3 instead.)

Execute:

ng v

or

ng --version

tell you the current angular cli version number

In the new rspec expect syntax this would be:

expect(subject).to receive(:bar).with("an argument I want")

Please store your JSON file with the .js extension and make sure that your JSON should be in same directory.

// WPF

// Defined Color
button1.Background = Brushes.Green;

// Color from RGB
button2.Background = new SolidColorBrush(Color.FromArgb(255, 0, 255, 0));

list.insert with any index >= len(of_the_list) places the value at the end of list. It behaves like append

Python 3.7.4
>>>lst=[10,20,30]
>>>lst.insert(len(lst), 101)
>>>lst
[10, 20, 30, 101]
>>>lst.insert(len(lst)+50, 202)
>>>lst
[10, 20, 30, 101, 202]

Time complexity, append O(1), insert O(n)

You can enable SSL on XAMPP by creating self signed certificates and then installing those certificates. Type the below commands to generate and move the certificates to ssl folders.

openssl genrsa -des3 -out server.key 1024

openssl req -new -key server.key -out server.csr

cp server.key server.key.org

openssl rsa -in server.key.org -out server.key

openssl x509 -req -days 365 -in server.csr -signkey server.key -out server.crt

cp server.crt /opt/lampp/etc/ssl.crt/domainname.crt

cp server.key /opt/lampp/etc/ssl.key/domainname.key

(Use sudo with each command if you are not the super user)

Now, Check that mod_ssl is enabled in [XAMPP_HOME]/etc/httpd.conf:

LoadModule ssl_module modules/mod_ssl.so

Add a virtual host, in this example "localhost.domainname.com" by editing [XAMPP_HOME]/etc/extra/httpd-ssl.conf as follows:

<virtualhost 127.0.1.4:443>
    ServerName localhost.domainname.com
    ServerAlias localhost.domainname.com *.localhost.domainname.com
    ServerAdmin admin@localhost

    DocumentRoot "/opt/lampp/htdocs/"

    DirectoryIndex index.php

    ErrorLog /opt/lampp/logs/domainname.local.error.log
    CustomLog /opt/lampp/logs/domainname.local.access.log combined

    SSLEngine on
    SSLCipherSuite ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP:+eNULL
    SSLCertificateFile /opt/lampp/etc/ssl.crt/domainname.crt
    SSLCertificateKeyFile /opt/lampp/etc/ssl.key/domainname.key

    <directory /opt/lampp/htdocs/>
            Options Indexes FollowSymLinks
            AllowOverride All
            Order allow,deny
            Allow from all
    </directory>
    BrowserMatch ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
</virtualhost>

Add the following entry to /etc/hosts:

127.0.1.4 localhost.domainname.com

Now, try installing the certificate/ try importing certificate to browser. I have checked this and this worked on Ubuntu.

I meet the same problem,but ,at last I solve the problem by followed way

((ViewGroup)dialog.getWindow().getDecorView())
.getChildAt(0).startAnimation(AnimationUtils.loadAnimation(
context,android.R.anim.slide_in_left));

Adding the System.Configuration as reference to all the projects will solve this.

1. Go to Project -> Add Reference

2. In the box that appears, click the All assemblies list tab in the left hand list.

3. In the central list, scroll to System.Configuration and make sure the box is checked.

4. Click ok to apply, and you'll now be able to access the ConfigurationManager class.

I had to add the npm path to the user PATH environment variable as well. You can do that by running the following PowerShell script as admin:

$path = npm config get prefix    
$userPath = [Environment]::GetEnvironmentVariable("Path", "User")

if (($userPath -split ';') -notcontains $path) 
{
    [Environment]::SetEnvironmentVariable("PATH", ('{0};{1}' -f $userPath, $path), "User")
}

next

also, look at redo which redoes the current iteration.

I was facing the same issue and just updated the JAVA_HOME worked for me.

previously it was like this: C:\Program Files\Java\jdk1.6.0_45\bin Just removed the \bin and it worked for me.

Since there were no exact answers to my question, I made some investigation why my code doesn't work when there are other solutions that works, and decided to post what I found to complete the subject.
As it turns out:

"ssh uses direct TTY access to make sure that the password is indeed issued by an interactive keyboard user." sshpass manpage

which answers the question, why the pipes don't work in this case. The obvious solution was to create conditions so that ssh "thought" that it is run in the regular terminal and since it may be accomplished by simple posix functions, it is beyond what simple bash offers.

The stack pointer stores the address of the most recent entry that was pushed onto the stack.

To push a value onto the stack, the stack pointer is incremented to point to the next physical memory address, and the new value is copied to that address in memory.

To pop a value from the stack, the value is copied from the address of the stack pointer, and the stack pointer is decremented, pointing it to the next available item in the stack.

The most typical use of a hardware stack is to store the return address of a subroutine call. When the subroutine is finished executing, the return address is popped off the top of the stack and placed in the Program Counter register, causing the processor to resume execution at the next instruction following the call to the subroutine.

http://en.wikipedia.org/wiki/Stack_%28data_structure%29#Hardware_stacks

i founded here, its ok with me for linkedin: https://auth0.com/docs/flows/guides/auth-code/call-api-auth-code so my code with with linkedin login here:

ref = 'https://api.linkedin.com/v2/me'
headers = {"content-type": "application/json; charset=UTF-8",'Authorization':'Bearer {}'.format(access_token)}
Linkedin_user_info = requests.get(ref1, headers=headers).json()

Usually if you use space as delimiter, you want to treat multiple spaces as one, because you parse the output of a command aligning some columns with spaces. (and the google search for that lead me here)

In this case a single cut command is not sufficient, and you need to use:

tr -s ' ' | cut -d ' ' -f 2

Or

awk '{print $2}'

It looks to me like the background images aren't actually background images...the site has the background images and the quotes in sibling divs with the children of the div containing the images having been assigned position: fixed; The quotes div is also given a transparent background.

wrapper div{
   image wrapper div{
       div for individual image{ <--- Fixed position
          image <--- relative position
       }
   }
   quote wrapper div{
       div for individual quote{
          quote
       }
   }
 }

Is it possible to have multiple version of tensorflow on the same OS?

Yes, you can use python virtual environments for this. From the docs:

A Virtual Environment is a tool to keep the dependencies required by different projects in separate places, by creating virtual Python environments for them. It solves the “Project X depends on version 1.x but, Project Y needs 4.x” dilemma, and keeps your global site-packages directory clean and manageable.

After you have install virtualenv (see the docs), you can create a virtual environment for the tutorial and install the tensorflow version you need in it:

PATH_TO_PYTHON=/usr/bin/python3.5
virtualenv -p $PATH_TO_PYTHON my_tutorial_env 
source my_tutorial_env/bin/activate # this activates your new environment
pip install tensorflow==1.1

PATH_TO_PYTHON should point to where python is installed on your system. When you want to use the other version of tensorflow execute:

deactivate my_tutorial_env

Now you can work again with the tensorflow version that was already installed on your system.

View and check the reference paths in your csproj.

I had removed references to System.Web.Mvc (and others) and readded them to a custom path. C:\Project\OurWebReferences

However, after doing this, the reference path in the still csproj did not change. WAS

<Reference Include="System.Web.Mvc, Version=4.0.0.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
  <SpecificVersion>False</SpecificVersion>
  <HintPath>..\..\..\..\OurWebProject\bin\Debug\System.Web.Mvc.dll</HintPath>
</Reference>

Changed to manually

<Reference Include="System.Web.Mvc, Version=4.0.0.1, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
  <SpecificVersion>False</SpecificVersion>
        <HintPath>..\..\..\..\OurWebReferences\System.Web.Mvc.dll</HintPath>
</Reference>

Paths are an example only.

The other option

is that you can make Apache (www-data), the owner of the folder

sudo chown -R www-data:www-data /var/www

that should make file_put_contents work now. But for more security you better also set the permissions like below

find /var/www -type d -print0 | xargs -0 chmod 0755 # folder
find /var/www -type f -print0 | xargs -0 chmod 0644 # files

• change /var/www to the root folder of your php files

For debugging purposes, you could use print(repr(data)).

To display text, always print Unicode. Don't hardcode the character encoding of your environment such as Cp850 inside your script. To decode the HTTP response, see A good way to get the charset/encoding of an HTTP response in Python.

To print Unicode to Windows console, you could use win-unicode-console package.

For mysql 8.0 version you can do this:

mysql.server stop
mysql.server start --secure-file-priv=''

It worked for me on Mac High Sierra.

It is not possible prolly cuz it would be so easy to XSS. Also , current HTML sanitizers that are available don't disallow content property.

(Definitely not the greatest answer here but I just wanted to share an insight other than the "according to spec... ")

In a nutshell

if your enums is as below:

export enum Colors1 {
  Red = 1,
  Green = 2,
  Blue = 3
}

to get specific text and value:

console.log(Colors1.Red); // 1 
console.log(Colors1[Colors1.Red]); // Red

to get list of value and text:

public getTextAndValues(e: { [s: number]: string }) {
  for (const enumMember in e) {
    if (parseInt(enumMember, 10) >= 0) {
      console.log(e[enumMember]) // Value, such as 1,2,3
      console.log(parseInt(enumMember, 10)) // Text, such as Red,Green,Blue
    }
  }
}
thsi.getTextAndValues(Colors1)

if your enums is as below:

export enum Colors2 {
  Red = "Red",
  Green = "Green",
  Blue = "Blue"
}

to get specific text and value:

console.log(Colors2.Red); // Red
console.log(Colors2["Red"]); // Red

to get list of value and text:

public getTextAndValues(e: { [s: string]: string }) {
  for (const enumMember in e) {
    console.log(e[enumMember]);// Value, such as Red,Green,Blue
    console.log(enumMember); //  Text, such as Red,Green,Blue
  }
}
this.getTextAndValues(Colors2)

Check this:

UIAlertController *alertctrl =[UIAlertController alertControllerWithTitle:@"choose Image" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    UIAlertAction *camera =[UIAlertAction actionWithTitle:@"camera" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        [self Action];  //call Action need to perform 
    }];

[alertctrl addAction:camera];
-(void)Action 

{

}

Generally speaking that is correct. Without knowing anything more about why you are looking for the differences I can't think of any other differentiators between signed and unsigned.

If you are using RVM you can install your gems into gemsets. That way when you want to perform a full cleanup you can simply remove the gemset, which in turn removes all the gems installed in it. Your other option is to simply uninstall your unused gems and re-run your bundle install command.

Since bundler is meant to be a project-per-project gem versioning tool it does not provide a bundle clean command. Doing so would mean the possibility of removing gems associated with other projects as well, which would not be desirable. That means that bundler is probably the wrong tool to use to manage your gem directory. My personal recommendation would be to use RVM gemsets to sandbox your gems in certain projects or ruby versions.

With code like this:

const int node_ct = 8;
const int expected[node_ct] = { 1, 3, 4, 2, 5, 6, 7, 8 };

And in the configure.ac

AC_PROG_CC_C99

The compiler on my dev box was happy. The compiler on the server complained with:

error: variable-sized object may not be initialized
   const int expected[node_ct] = { 1, 3, 4, 2, 5, 6, 7, 8 };

and

warning: excess elements in array initializer
   const int expected[node_ct] = { 1, 3, 4, 2, 5, 6, 7, 8 };

for each element

It doesn't complain at all about, for example:

int expected[] = { 1, 2, 3, 4, 5 };

however, I decided that I like the check on size.

Rather than fighting, I went with a varargs initializer:

#include <stdarg.h>

void int_array_init(int *a, const int ct, ...) {
  va_list args;
  va_start(args, ct);
  for(int i = 0; i < ct; ++i) {
    a[i] = va_arg(args, int);
  }
  va_end(args);
}

called like,

const int node_ct = 8;
int expected[node_ct];
int_array_init(expected, node_ct, 1, 3, 4, 2, 5, 6, 7, 8);

As such, the varargs support is more robust than the support for the array initializer.

Someone might be able to do something like this in a macro.

Find PR with sample code at https://github.com/wbreeze/davenport/pull/15/files

Regarding https://stackoverflow.com/a/3535455/608359 from @paxdiablo, I liked it; but, felt insecure about having the number of times the initializaion pointer advances synchronized with the number of elements allocated to the array. Worst case, the initializing pointer moves beyond the allocated length. As such, the diff in the PR contains,

  int expected[node_ct];
- int *p = expected;
- *p++ = 1; *p++ = 2; *p++ = 3; *p++ = 4;
+ int_array_init(expected, node_ct, 1, 2, 3, 4);

The int_array_init method will safely assign junk if the number of arguments is fewer than the node_ct. The junk assignment ought to be easier to catch and debug.

There is an important detail:

set PATH="C:\linutils;C:\wingit\bin;%PATH%"

does not work, while

set PATH=C:\linutils;C:\wingit\bin;%PATH%

works. The difference is the quotes!

UPD also see the comment by venimus

One obvious solution would be to use javascript (which is not JSF). To implement this by JSF you should use AJAX. In this example, I use a radio button group to show and hide two set of components. In the back bean, I define a boolean switch.

private boolean switchComponents;

public boolean isSwitchComponents() {
    return switchComponents;
}

public void setSwitchComponents(boolean switchComponents) {
    this.switchComponents = switchComponents;
}

When the switch is true, one set of components will be shown and when it is false the other set will be shown.

 <h:selectOneRadio value="#{backbean.switchValue}">
   <f:selectItem itemLabel="showComponentSetOne" itemValue='true'/>
   <f:selectItem itemLabel="showComponentSetTwo" itemValue='false'/>
   <f:ajax event="change" execute="@this" render="componentsRoot"/>
 </h:selectOneRadio>


<H:panelGroup id="componentsRoot">
     <h:panelGroup rendered="#{backbean.switchValue}">
       <!--switchValue to be shown on switch value == true-->
     </h:panelGroup>

   <h:panelGroup rendered="#{!backbean.switchValue}">
      <!--switchValue to be shown on switch value == false-->
   </h:panelGroup>
</H:panelGroup>

Note: on the ajax event we render components root. because components which are not rendered in the first place can't be re-rendered on the ajax event.

Also, note that if the "componentsRoot" and radio buttons are under different component hierarchy. you should reference it from the root (form root).

Configure basic authentication using the instructions from microsoft. But for the Default Domain Name, type your computer name. To find your computer name, click start, right-click computer, click properties, and search for your computer name there :)

Next, create users like you would normally do on windows 7. or if you don't know how to do it, go control-panel, users, add account.....blah blah blah.... Get It?

Next go to iis and set permissions for the user you just created. Be carefull to set the permissions to make it exactly how you want it.

That's all! To login, the username and password!

NOTE: The username should be simple letters, not capital. I'm not sure about this, that's why i told you this.

I am using a ListView instead of a GridView in 3.5. When the user wants to edit I have set the selected item of the dropdown to the exising value of that column for the record. I am able to access the dropdown in the ItemDataBound event. Here's the code:

protected void listViewABC_ItemDataBound(object sender, ListViewItemEventArgs e)
{
    // This stmt is used to execute the code only in case of edit 
    if (((ListView)(sender)).EditIndex != -1 && ((ListViewDataItem)(e.Item)).DisplayIndex == ((ListView)(sender)).EditIndex)
    {
        ((DropDownList)(e.Item.FindControl("ddlXType"))).SelectedValue = ((MyClass)((ListViewDataItem)e.Item).DataItem).XTypeId.ToString();
        ((DropDownList)(e.Item.FindControl("ddlIType"))).SelectedValue = ((MyClass)((ListViewDataItem)e.Item).DataItem).ITypeId.ToString();
    }
}

It works in my react project:

import FileSaver from 'file-saver';
// ...
onTestSaveFile() {
    var blob = new Blob(["Hello, world!"], {type: "text/plain;charset=utf-8"});
    FileSaver.saveAs(blob, "hello world.txt");
}

// is unconditionally "flooring division", e.g:

>>> 4.0//1.5
2.0

As you see, even though both operands are floats, // still floors -- so you always know securely what it's going to do.

Single / may or may not floor depending on Python release, future imports, and even flags on which Python's run, e.g.:

$ python2.6 -Qold -c 'print 2/3'
0
$ python2.6 -Qnew -c 'print 2/3'
0.666666666667

As you see, single / may floor, or it may return a float, based on completely non-local issues, up to and including the value of the -Q flag...;-).

So, if and when you know you want flooring, always use //, which guarantees it. If and when you know you don't want flooring, slap a float() around other operand and use /. Any other combination, and you're at the mercy of version, imports, and flags!-)

Replace below characters

~ ! @ # $ % ^ & * ( ) _ +
` - = 
{ } |
[ ] \
: " 
; '

< > ?
, . 

with this SQL

SELECT note as note_original, 

    REPLACE(
        REPLACE(
            REPLACE(
                REPLACE(
                    REPLACE(
                        REPLACE(
                            REPLACE(
                                REPLACE(
                                    REPLACE(
                                        REPLACE(
                                            REPLACE(
                                                REPLACE(
                                                    REPLACE(
                                                        REPLACE(
                                                            REPLACE(
                                                                REPLACE(
                                                                    REPLACE(
                                                                        REPLACE(
                                                                            REPLACE(
                                                                                REPLACE(
                                                                                    REPLACE(
                                                                                        REPLACE(
                                                                                            REPLACE(
                                                                                                REPLACE(
                                                                                                    REPLACE(
                                                                                                        REPLACE(
                                                                    REPLACE(
                                                                        REPLACE(
                                                                            REPLACE(
                                                                                REPLACE(
                                                                                    REPLACE(
                                                                                        REPLACE(
                                                                                            REPLACE(note, '\"', ''),
                                                                                        '.', ''),
                                                                                    '?', ''),
                                                                                '`', ''),
                                                                            '<', ''),
                                                                        '=', ''),
                                                                    '{', ''),
                                                                                                        '}', ''),
                                                                                                    '[', ''),
                                                                                                ']', ''),
                                                                                            '|', ''),
                                                                                        '\'', ''),
                                                                                    ':', ''),
                                                                                ';', ''),
                                                                            '~', ''),
                                                                        '!', ''),
                                                                    '@', ''),
                                                                '#', ''),
                                                            '$', ''),
                                                        '%', ''),
                                                    '^', ''),
                                                '&', ''),
                                            '*', ''),
                                        '_', ''),
                                    '+', ''),
                                ',', ''),
                            '/', ''),
                        '(', ''),
                    ')', ''),
                '-', ''),
            '>', ''),
        ' ', '-'),
    '--', '-') as note_changed FROM invheader

To declare different layouts and bitmaps you'd like to use for the different screens, you must place these alternative resources in separate directories/folders.

This means that if you generate a 200x200 image for xhdpi devices, you should generate the same resource in 150x150 for hdpi, 100x100 for mdpi, and 75x75 for ldpi devices.

Then, place the files in the appropriate drawable resource directory:

MyProject/
    res/
        drawable-xhdpi/
            awesomeimage.png
        drawable-hdpi/
            awesomeimage.png
        drawable-mdpi/
            awesomeimage.png
        drawable-ldpi/
            awesomeimage.png

Any time you reference @drawable/awesomeimage, the system selects the appropriate bitmap based on the screen's density.

A reference object has no size. If you write sizeof(referenceVariable), it will give you the size of the object referenced by referenceVariable, not that of the reference itself. It has no size of its own, which is why the compiler can't calculate how much size the array would require.

Encapsulate your writer to provide char replacement, like this:

public class WindowsFileWriter extends Writer {

    private Writer writer;

    public WindowsFileWriter(File file) throws IOException {
        try {
            writer = new OutputStreamWriter(new FileOutputStream(file), "ISO-8859-15");
        } catch (UnsupportedEncodingException e) {
            writer = new FileWriter(logfile);
        }
    }

    @Override
    public void write(char[] cbuf, int off, int len) throws IOException {
        writer.write(new String(cbuf, off, len).replace("\n", "\r\n"));
    }

    @Override
    public void flush() throws IOException {
        writer.flush();
    }

    @Override
    public void close() throws IOException {
        writer.close();
    }

}

You don't want to stretch the span in height?
You have the possiblity to affect one or more flex-items to don't stretch the full height of the container.

To affect all flex-items of the container, choose this:
You have to set align-items: flex-start; to div and all flex-items of this container get the height of their content.

div {_x000D_
  align-items: flex-start;_x000D_
  background: tan;_x000D_
  display: flex;_x000D_
  height: 200px;_x000D_
}_x000D_
span {_x000D_
  background: red;_x000D_
}

<div>_x000D_
  <span>This is some text.</span>_x000D_
</div>

To affect only a single flex-item, choose this:
If you want to unstretch a single flex-item on the container, you have to set align-self: flex-start; to this flex-item. All other flex-items of the container aren't affected.

div {_x000D_
  display: flex;_x000D_
  height: 200px;_x000D_
  background: tan;_x000D_
}_x000D_
span.only {_x000D_
  background: red;_x000D_
  align-self:flex-start;_x000D_
}_x000D_
span {_x000D_
    background:green;_x000D_
}

<div>_x000D_
  <span class="only">This is some text.</span>_x000D_
  <span>This is more text.</span>_x000D_
</div>

Why is this happening to the span?
The default value of the property align-items is stretch. This is the reason why the span fill the height of the div.

Difference between baseline and flex-start?
If you have some text on the flex-items, with different font-sizes, you can use the baseline of the first line to place the flex-item vertically. A flex-item with a smaller font-size have some space between the container and itself at top. With flex-start the flex-item will be set to the top of the container (without space).

div {_x000D_
  align-items: baseline;_x000D_
  background: tan;_x000D_
  display: flex;_x000D_
  height: 200px;_x000D_
}_x000D_
span {_x000D_
  background: red;_x000D_
}_x000D_
span.fontsize {_x000D_
  font-size:2em;_x000D_
}

<div>_x000D_
  <span class="fontsize">This is some text.</span>_x000D_
  <span>This is more text.</span>_x000D_
</div>

You can find more information about the difference between baseline and flex-start here:
What's the difference between flex-start and baseline?

You shouldn't call viewDidLoad method manually, Instead if you want to reload any data or any UI, you can use this:

override func viewDidLoad() {
    super.viewDidLoad();

    let myButton = UIButton()

    // When user touch myButton, we're going to call loadData method
    myButton.addTarget(self, action: #selector(self.loadData), forControlEvents: .TouchUpInside)

    // Load the data
    self.loadData();
}

func loadData() {
    // code to load data from network, and refresh the interface
    tableView.reloadData()
}

Whenever you want to reload the data and refresh the interface, you can call self.loadData()

How to convert a number to a string in C++03

1. Do not use the itoa or itof functions because they are non-standard and therefore not portable.
   

2. Use string streams
   

    #include <sstream>  //include this to use string streams
    #include <string> 
   
   int main()
   {    
       int number = 1234;
   
       std::ostringstream ostr; //output string stream
       ostr << number; //use the string stream just like cout,
       //except the stream prints not to stdout but to a string.
   
       std::string theNumberString = ostr.str(); //the str() function of the stream 
       //returns the string.
   
       //now  theNumberString is "1234"  
   }
   

   Note that you can use string streams also to convert floating-point numbers to string, and also to format the string as you wish, just like with cout

   std::ostringstream ostr;
   float f = 1.2;
   int i = 3;
   ostr << f << " + " i << " = " << f + i;   
   std::string s = ostr.str();
   //now s is "1.2 + 3 = 4.2" 
   

   You can use stream manipulators, such as std::endl, std::hex and functions std::setw(), std::setprecision() etc. with string streams in exactly the same manner as with cout

   Do not confuse std::ostringstream with std::ostrstream. The latter is deprecated

3. Use boost lexical cast. If you are not familiar with boost, it is a good idea to start with a small library like this lexical_cast. To download and install boost and its documentation go here. Although boost isn't in C++ standard many libraries of boost get standardized eventually and boost is widely considered of the best C++ libraries.

   Lexical cast uses streams underneath, so basically this option is the same as the previous one, just less verbose.

   #include <boost/lexical_cast.hpp>
   #include <string>
   
   int main()
   {
      float f = 1.2;
      int i = 42;
      std::string sf = boost::lexical_cast<std::string>(f); //sf is "1.2"
      std::string si = boost::lexical_cast<std::string>(i); //sf is "42"
   }
   

How to convert a string to a number in C++03

1. The most lightweight option, inherited from C, is the functions atoi (for integers (alphabetical to integer)) and atof (for floating-point values (alphabetical to float)). These functions take a C-style string as an argument (const char *) and therefore their usage may be considered a not exactly good C++ practice. cplusplus.com has easy-to-understand documentation on both atoi and atof including how they behave in case of bad input. However the link contains an error in that according to the standard if the input number is too large to fit in the target type, the behavior is undefined.

   #include <cstdlib> //the standard C library header
   #include <string>
   int main()
   {
       std::string si = "12";
       std::string sf = "1.2";
       int i = atoi(si.c_str()); //the c_str() function "converts" 
       double f = atof(sf.c_str()); //std::string to const char*
   }
   

2. Use string streams (this time input string stream, istringstream). Again, istringstream is used just like cin. Again, do not confuse istringstream with istrstream. The latter is deprecated.

   #include <sstream>
   #include <string>
   int main()
   {
      std::string inputString = "1234 12.3 44";
      std::istringstream istr(inputString);
      int i1, i2;
      float f;
      istr >> i1 >> f >> i2;
      //i1 is 1234, f is 12.3, i2 is 44  
   }
   

3. Use boost lexical cast.

   #include <boost/lexical_cast.hpp>
   #include <string>
   
   int main()
   {
      std::string sf = "42.2"; 
      std::string si = "42";
      float f = boost::lexical_cast<float>(sf); //f is 42.2
      int i = boost::lexical_cast<int>(si);  //i is 42
   }       
   

   In case of a bad input, lexical_cast throws an exception of type boost::bad_lexical_cast

For anyone who wants to pass in arbitrary strings which are exact matches (And not worry about escaping regex special characters), git log takes a --fixed-strings option

git log --fixed-strings --grep "$SEARCH_TERM" 

In this line ...

if (*message == "\0") {

... as you can see in the warning ...

warning: comparison between pointer and integer
      ('int' and 'char *')

... you are actually comparing an int with a char *, or more specifically, an int with an address to a char.

To fix this, use one of the following:

if(*message == '\0') ...
if(message[0] == '\0') ...
if(!*message) ...

On a side note, if you'd like to compare strings you should use strcmp or strncmp, found in string.h.

To diagnose better, you can capture the standard output and standard error streams of the external program, in order to see what output was generated and why it might not be running as expected.

Look up:

• ProcessStartInfo.RedirectStandardError and
• ProcessStartInfo.RedirectStandardOutput.

If you set each of those to true, then you can later call process.StandardOutput.ReadToEnd() and process.StandardError.ReadToEnd() to get the output into string variables, which you can easily inspect under the debugger, or output to trace or your log file.

Just add the following:

#define __USE_C99_MATH

#include <stdbool.h>

If you just want a count of the distinct pairs.

The simplest way to do that is as follows SELECT COUNT(DISTINCT a,b) FROM pairs

The previous solutions would list all the pairs and then you'd have to do a second query to count them.

If you are using Git (for example, Git Bash) under Windows (and if you don't want to switch from HTTPS to SSH), you could also use Git Credential Manager for Windows

This application will keep the username and password for you...

Try to change the loop like this:

for line in $(cat filename); do
    read input
    echo $input;
done

Unit test:

for line in $(cat /etc/passwd); do
    read input
    echo $input;
    echo "[$line]"
done

Another possibility is to use the options with data attributes, like this(minimum date 1 week before):

<input class='datepicker' data-date-start-date="-1w">

More info: http://bootstrap-datepicker.readthedocs.io/en/latest/options.html

if you are making a RecyclerView and using an adapter, what worked for me was:

@Override
public void onBindViewHolder(ADAPTERVIEWHOLDER holder, int position) {
    MODEL model = LIST.get(position);
    holder.TEXTVIEW.setText(service.getTitle());
    holder.TEXTVIEW.setText(service.getDesc());

    Context context = holder.IMAGEVIEW.getContext();
    Picasso.with(context).load(model.getImage()).into(holder.IMAGEVIEW);
}

Addition to the accepted answer:

struct immutableint {
    immutableint(int i) : i_(i) {}

    const int& get() const { return i_; }
private:
    int i_;
};

I'd argue that this example is not okay and should be avoided if possible. Why? It is very easy to end-up with a dangling reference.

To illustrate the point with an example:

struct Foo
{
    Foo(int i = 42) : boo_(i) {}
    immutableint boo()
    {
        return boo_;
    }  
private:
    immutableint boo_;
};

entering the danger-zone:

Foo foo;
const int& dangling = foo.boo().get(); // dangling reference!

The default value for a GUID is empty. (eg: 00000000-0000-0000-0000-000000000000)

This can be invoked using Guid.Empty or new Guid()

If you want a new GUID, you use Guid.NewGuid()

Filter with glob module:

Import glob

import glob

Wild Cards:

files=glob.glob("data/*")
print(files)

Out:

['data/ks_10000_0', 'data/ks_1000_0', 'data/ks_100_0', 'data/ks_100_1',
'data/ks_100_2', 'data/ks_106_0', 'data/ks_19_0', 'data/ks_200_0', 'data/ks_200_1', 
'data/ks_300_0', 'data/ks_30_0', 'data/ks_400_0', 'data/ks_40_0', 'data/ks_45_0', 
'data/ks_4_0', 'data/ks_500_0', 'data/ks_50_0', 'data/ks_50_1', 'data/ks_60_0', 
'data/ks_82_0', 'data/ks_lecture_dp_1', 'data/ks_lecture_dp_2']

Fiter extension .txt:

files = glob.glob("/home/ach/*/*.txt")

A single character

glob.glob("/home/ach/file?.txt")

Number Ranges

glob.glob("/home/ach/*[0-9]*")

Alphabet Ranges

glob.glob("/home/ach/[a-c]*")

Combining CodeIgniter and JavaScript:

//for using the base_url() function
$this->load->helper('url');

echo "<script type='javascript/text'>";
echo "alert('There are no fields to generate a report');"
echo "window.location.href = '" . base_url() . "admin/ahm/panel';"
echo "</script>";

Note: The redirect() function automatically includes the base_url path that is why it wasn't required there.

You have to use start and $NUL for this in Windows PowerShell:

Type in this command assuming mySum is the name of your application and 5 10 are command line arguments you are sending.

start .\mySum  5 10 > $NUL 2>&1

The start command will start a detached process, a similar effect to &. The /B option prevents start from opening a new terminal window if the program you are running is a console application. and NUL is Windows' equivalent of /dev/null. The 2>&1 at the end will redirect stderr to stdout, which will all go to NUL.

Thanks to the folks on Freenode's #macdev, here is some information:

In the old days before Xcode was on the app-store, it included commandline tools.

Now you get it from the store, and with this new mechanism it can't install extra things outside of the Xcode.app, so you have to manually do it yourself, by:

xcode-select --install

On Xcode 4.x you can check to see if they are installed from within the Xcode UI:

On Xcode 5.x it is now here:

My problem of finding gcc/gdb is that they have been superseded by clang/lldb: GDB missing in OS X v10.9 (Mavericks)

Also note that Xcode contains compiler and debugger, so one of the things installing commandline tools will do is symlink or modify $PATH. It also downloads certain things like git.

In my case I just needed to remove Homebrew's executable using:

sudo rm -f `which brew`

Then reinstall Homebrew:

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

It turns out that, out of the four possible permutations of including or excluding trailing or leading forward slashes on the BaseAddress and the relative URI passed to the GetAsync method -- or whichever other method of HttpClient -- only one permutation works. You must place a slash at the end of the BaseAddress, and you must not place a slash at the beginning of your relative URI, as in the following example.

using (var handler = new HttpClientHandler())
using (var client = new HttpClient(handler))
{
    client.BaseAddress = new Uri("http://something.com/api/");
    var response = await client.GetAsync("resource/7");
}

Even though I answered my own question, I figured I'd contribute the solution here since, again, this unfriendly behavior is undocumented. My colleague and I spent most of the day trying to fix a problem that was ultimately caused by this oddity of HttpClient.

I got same error. Because i used v4 alpha class names like carousel-control-next When i changed with v3, problem solved.

This is work for me !

<script type="text/javascript">
$(document).ready(function(){
        countnumber(0,40,"stat1",50);
        function countnumber(start,end,idtarget,duration){
            cc=setInterval(function(){
                if(start==end)
                {
                    $("#"+idtarget).html(start);
                    clearInterval(cc);
                }
                else
                {
                   $("#"+idtarget).html(start);
                   start++;
                }
            },duration);
        }
    });
</script>
<span id="span1"></span>

You can't have duplicated keys in a dictionary. Use a dict of lists:

for line in data_list:
  regNumber = line[0]
  name = line[1]
  phoneExtn = line[2]
  carpark = line[3].strip()
  details = (name,phoneExtn,carpark)
  if not data_dict.has_key(regNumber):
    data_dict[regNumber] = [details]
  else:
    data_dict[regNumber].append(details)

The lstrip() method will remove leading whitespaces, newline and tab characters on a string beginning:

>>> '     hello world!'.lstrip()
'hello world!'

Edit

As balpha pointed out in the comments, in order to remove only spaces from the beginning of the string, lstrip(' ') should be used:

>>> '   hello world with 2 spaces and a tab!'.lstrip(' ')
'\thello world with 2 spaces and a tab!'

Related question:

• Trimming a string in Python

This hasn't been mentioned yet. It works and I think it looks better than using !(child is IContainer)

if (part is IContainer is false)
{
    return;
}

New In C# 9.0

https://devblogs.microsoft.com/dotnet/welcome-to-c-9-0/#logical-patterns

if (part is not IContainer)
{
    return;
}

if you are a exists project, maybe should execute npm install.

guntjs getting started step 2.

The problem is database connection string, one of your MySQL database connection function parameter is not correct ,so there is an error message in the browser output, Just right click output webpage and view html source code you will see error line followed by correct XML output data(file). I had same problem and the above solution worked perfectly.

UILabel has a property lineBreakMode that you can set as per your requirement.

Change the Target version to new updates you have. Otherwise, change what SDK version you have in the Android manifest file.

android:minSdkVersion="8"
android:targetSdkVersion="18"

Alternative constructors are the classic example.

In your test, you are comparing the two TestParent beans, not the single TestedChild bean.

Also, Spring proxies your @Configuration class so that when you call one of the @Bean annotated methods, it caches the result and always returns the same object on future calls.

See here:

• How does Spring @Configuration cache references to beans

Unfortunately I have a unique build (stuck with Gentoo for the moment) of PHP 5.5, and what I found was that

 $xml->tagName['attribute']

was the only solution that worked. I tried all of Bora's methods above, including the 'Right & Quick' format, and they all failed.

The fact that this is the easiest format is a plus, but didn't enjoy thinking I was insane trying all of the formats others were saying worked.

Njoy for what its worth (did I mention unique build?).

I had this problem. As stated it is probably a static declaration issue. In my case it was because I had a static within a DEBUG clause. That is (in c#)

#if DEBUG
    public static bool DOTHISISINDEBUGONLY = false;
#endif

Everything worked fine until I complied a Release version of the code and after that I got this error - even on old release versions of the code. Once I took the variable out of the DEBUG clause everything returned to normal.

hope it will help in jQuery

define a function first, if there is an existing function skip to next step.

 function someFun() {
 //use your code
 }

browser resize use like these.

 $(window).on('resize', function () {
    someFun();  //call your function.
 });

I use always:

• quality in 85
• progressive (comprobed compression)
• a very tiny gausssian blur to optimize the size (0.05 or 0.5 of radius) depends on the quality and size of the picture, this notably optimizes the size of the jpeg.
• Strip any comment or EXIF metadata

in imagemagick should be

convert -strip -interlace Plane -gaussian-blur 0.05 -quality 85% source.jpg result.jpg

or in the newer version:

magick source.jpg -strip -interlace Plane -gaussian-blur 0.05 -quality 85% result.jpg

Source.

From @Fordi in the comments (Don't forget to upvote him if you like this): If you dislike blurring, use -sampling-factor 4:2:0 instead. What this does is reduce the chroma channel's resolution to half, without messing with the luminance resolution that your eyes latch onto. If you want better fidelity in the conversion, you can get a slight improvement without an increase in filesize by specifying -define jpeg:dct-method=float - that is, use the more accurate floating point discrete cosine transform, rather than the default fast integer version.

Another alternative to the != null check is (if you can't get rid of it design-wise):

Optional.ofNullable(someobject).ifPresent(someobject -> someobject.doCalc());

or

Optional.ofNullable(someobject).ifPresent(SomeClass::doCalc);

With SomeClass being someobject's type.

You can't get a return value back from doCalc() though, so only useful for void methods.

There may be different reason for reported issue, few days back also face this issue 'duplicate jar', after upgrading studio. From all stackoverflow I tried all the suggestion but nothing worked for me.

But this is for sure some duplicate jar is there, For me it was present in one library libs folder as well as project libs folder. So I removed from project libs folder as it was not required here. So be careful while updating the studio, and try to understand all the gradle error.

If you've just killed a big query, it will take time to rollback. If you issue another query before the killed query is done rolling back, you might get a lock timeout error. That's what happened to me. The solution was just to wait a bit.

Details:

I had issued a DELETE query to remove about 900,000 out of about 1 million rows.

I ran this by mistake (removes only 10% of the rows): DELETE FROM table WHERE MOD(id,10) = 0

Instead of this (removes 90% of the rows): DELETE FROM table WHERE MOD(id,10) != 0

I wanted to remove 90% of the rows, not 10%. So I killed the process in the MySQL command line, knowing that it would roll back all the rows it had deleted so far.

Then I ran the correct command immediately, and got a lock timeout exceeded error soon after. I realized that the lock might actually be the rollback of the killed query still happening in the background. So I waited a few seconds and re-ran the query.

Asking for purpose, there are different answers:

Using JSON to serialize objects (JavaScriptObjectNotation), each dictionary element maps to an indivual object property, so different entries defining a value for the same property has no meaning.

However, I came over the same question from a very specific use case: Writing JSON samples for API testing, I was wondering how to add comments into our JSON file without breaking the usability. The JSON spec does not know comments, so I came up with a very simple approach:

To use duplicate keys to comment our JSON samples. Example:

{ "property1" : "value1", "REMARK" : "... prop1 controls ...", "property2" : "value2", "REMARK" : "... value2 raises an exception ...", }

The JSON serializers which we are using have no problems with these "REMARK" duplicates and our application code simply ignores this little overhead.

So, even though there is no meaning on the application layer, these duplicates for us provide a valuable workaround to add comments to our testing samples without breaking the usability of the JSON.

Try this:

str.replace("\"", "\\\""); // (Escape backslashes and embedded double-quotes)

Or, use single-quotes to quote your search and replace strings:

str.replace('"', '\\"');   // (Still need to escape the backslash)

As pointed out by helmus, if the first parameter passed to .replace() is a string it will only replace the first occurrence. To replace globally, you have to pass a regex with the g (global) flag:

str.replace(/"/g, "\\\"");
// or
str.replace(/"/g, '\\"');

But why are you even doing this in JavaScript? It's OK to use these escape characters if you have a string literal like:

var str = "Dude, he totally said that \"You Rock!\"";

But this is necessary only in a string literal. That is, if your JavaScript variable is set to a value that a user typed in a form field you don't need to this escaping.

Regarding your question about storing such a string in an SQL database, again you only need to escape the characters if you're embedding a string literal in your SQL statement - and remember that the escape characters that apply in SQL aren't (usually) the same as for JavaScript. You'd do any SQL-related escaping server-side.

Here's how to implement this from the official page:

http://getbootstrap.com/2.3.2/examples/sticky-footer.html

I just tested it right now and it WORKS GREAT! :)

HTML

<body>

    <!-- Part 1: Wrap all page content here -->
    <div id="wrap">

      <!-- Begin page content -->
      <div class="container">
        <div class="page-header">
          <h1>Sticky footer</h1>
        </div>
        <p class="lead">Pin a fixed-height footer to the bottom of the viewport in desktop browsers with this custom HTML and CSS.</p>
      </div>

      <div id="push"></div>
    </div>

    <div id="footer">
      <div class="container">
        <p class="muted credit">Example courtesy <a href="http://martinbean.co.uk">Martin Bean</a> and <a href="http://ryanfait.com/sticky-footer/">Ryan Fait</a>.</p>
      </div>
    </div>
</body>

The relevant CSS code is this:

/* Sticky footer styles
-------------------------------------------------- */
html,
body {
    height: 100%;
    /* The html and body elements cannot have any padding or margin. */
}

/* Wrapper for page content to push down footer */
#wrap {
    min-height: 100%;
    height: auto !important;
    height: 100%;
    /* Negative indent footer by it's height */
    margin: 0 auto -30px;
}

/* Set the fixed height of the footer here */
#push,
#footer {
    height: 30px;
}

#footer {
    background-color: #f5f5f5;
}

/* Lastly, apply responsive CSS fixes as necessary */
@media (max-width: 767px) {
    #footer {
        margin-left: -20px;
        margin-right: -20px;
        padding-left: 20px;
        padding-right: 20px;
    }
}

Since Python is a strongly typed language, concatenating a string and an integer as you may do in Perl makes no sense, because there's no defined way to "add" strings and numbers to each other.

Explicit is better than implicit.

...says "The Zen of Python", so you have to concatenate two string objects. You can do this by creating a string from the integer using the built-in str() function:

>>> "abc" + str(9)
'abc9'

Alternatively use Python's string formatting operations:

>>> 'abc%d' % 9
'abc9'

Perhaps better still, use str.format():

>>> 'abc{0}'.format(9)
'abc9'

The Zen also says:

There should be one-- and preferably only one --obvious way to do it.

Which is why I've given three options. It goes on to say...

Although that way may not be obvious at first unless you're Dutch.

I think this is the syntax you are looking for:

if [ -z != $errorstatus ] 
then
commands
else
commands
fi

In my case it turned out to be commented out HTML in a master page!

Who knew that commented out HTML such as this were actually interpreted by ASP.NET!

<!--
<link rel="icon" href="../../favicon.ico">
-->

declare it "static" like this:

static void MyClass::printInformation() { return; }

You could also preprocess the source file and see what the preprocessor value evaluates to.

EasyMock templates

Create Mock

${:importStatic(org.easymock.EasyMock.createMock)}
${type} ${name} = createMock(${type}.class);

Reset Mock

${:importStatic(org.easymock.EasyMock.reset)}
reset(${var});

Replay Mock

${:importStatic(org.easymock.EasyMock.replay)}
replay(${var});

Verify Mock

${:importStatic(org.easymock.EasyMock.verify)}
verify(${var});

There is Mozilla official solution: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/indexOf

(function() {
    /**Array*/
    // Production steps of ECMA-262, Edition 5, 15.4.4.14
    // Reference: http://es5.github.io/#x15.4.4.14
    if (!Array.prototype.indexOf) {
        Array.prototype.indexOf = function(searchElement, fromIndex) {
            var k;
            // 1. Let O be the result of calling ToObject passing
            //    the this value as the argument.
            if (null === this || undefined === this) {
                throw new TypeError('"this" is null or not defined');
            }
            var O = Object(this);
            // 2. Let lenValue be the result of calling the Get
            //    internal method of O with the argument "length".
            // 3. Let len be ToUint32(lenValue).
            var len = O.length >>> 0;
            // 4. If len is 0, return -1.
            if (len === 0) {
                return -1;
            }
            // 5. If argument fromIndex was passed let n be
            //    ToInteger(fromIndex); else let n be 0.
            var n = +fromIndex || 0;
            if (Math.abs(n) === Infinity) {
                n = 0;
            }
            // 6. If n >= len, return -1.
            if (n >= len) {
                return -1;
            }
            // 7. If n >= 0, then Let k be n.
            // 8. Else, n<0, Let k be len - abs(n).
            //    If k is less than 0, then let k be 0.
            k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
            // 9. Repeat, while k < len
            while (k < len) {
                // a. Let Pk be ToString(k).
                //   This is implicit for LHS operands of the in operator
                // b. Let kPresent be the result of calling the
                //    HasProperty internal method of O with argument Pk.
                //   This step can be combined with c
                // c. If kPresent is true, then
                //    i.  Let elementK be the result of calling the Get
                //        internal method of O with the argument ToString(k).
                //   ii.  Let same be the result of applying the
                //        Strict Equality Comparison Algorithm to
                //        searchElement and elementK.
                //  iii.  If same is true, return k.
                if (k in O && O[k] === searchElement) {
                    return k;
                }
                k++;
            }
            return -1;
        };
    }
})();

In my case, I have to get 2 values what are objects. I share this simple solution.

$ran = array("a","b","c","d");
$ranval = array_map(function($i) use($ran){return $ran[$i];},array_rand($ran,2));

Stick to php...

Why not only allow the button to appear once an above criteria is met.

<?
if (whatever == something) {
    $display = '<input id="Button" type="button" value="+" style="background-color:grey" onclick="Me();"/>';
    return $display;
}
?>

Pass it as an argument to Date():

var st = "date in some format"
var dt = new Date(st);

You can access the date, month, year using, for example: dt.getMonth().

Printing the STACK trace, logging it or send message to the user, are very bad ways to process the exceptions. Does any one can describe solutions to fix the exception in proper steps then can trying the broken instruction again?

By 'JSON array containing objects' I guess you mean a string containing JSON?

If so you can use the safe var myArray = JSON.parse(myJSON) method (either native or included using JSON2), or the usafe var myArray = eval("(" + myJSON + ")"). eval should normally be avoided, but if you are certain that the content is safe, then there is no problem.

After that you just iterate over the array as normal.

for (var i = 0; i < myArray.length; i++) {
    alert(myArray[i].Title);
}

I figured out below would work:

my_df.dropna().quantile([0.0, .9])

Its easy, dont Align it to anything

<Button_x000D_
        android:id="@+id/the_button"_x000D_
        android:layout_width="wrap_content"_x000D_
        android:layout_height="wrap_content" _x000D_
        android:layout_centerInParent="true"_x000D_
        android:text="Centered Button"/>

On Firefox for Ubuntu, just using

    input[type='number'] {
    -moz-appearance:textfield;
}

did the trick for me.

Adding

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

Would lead me to

Unknown pseudo-class or pseudo-element ‘-webkit-outer-spin-button’. Ruleset ignored due to bad selector.

everytime I tried. Same for the inner spin button.

How about this ? Example illusrated using a file:

f = open('abc.log','r')
content = f.readlines()
for line in content:
    m = re.search(r"\[(.*?)\]", line)
    print m.group(1)
    

Hope this helps:

Magic regex : \[(.*?)\]

Explanation:

\[ : [ is a meta char and needs to be escaped if you want to match it literally.

(.*?) : match everything in a non-greedy way and capture it.

\] : ] is a meta char and needs to be escaped if you want to match it literally.

C# version of nirg's answer is here: I'll just share the code. It may save someone some time.

public static bool IsPointInPolygon(IList<Point> polygon, Point testPoint) {
            bool result = false;
            int j = polygon.Count() - 1;
            for (int i = 0; i < polygon.Count(); i++) {
                if (polygon[i].Y < testPoint.Y && polygon[j].Y >= testPoint.Y || polygon[j].Y < testPoint.Y && polygon[i].Y >= testPoint.Y) {
                    if (polygon[i].X + (testPoint.Y - polygon[i].Y) / (polygon[j].Y - polygon[i].Y) * (polygon[j].X - polygon[i].X) < testPoint.X) {
                        result = !result;
                    }
                }
                j = i;
            }
            return result;
        }

As it turns out, the problem wasn't actually a looping chain of synonyms, but the fact that the synonym was pointing to a view that did not exist.

Oracle apparently errors out as a looping chain in this condition.

Sounds like you want to do an "upsert". MongoDB has built-in support for this. Pass an extra parameter to your update() call: {upsert:true}. For example:

key = {'key':'value'}
data = {'key2':'value2', 'key3':'value3'};
coll.update(key, data, upsert=True); #In python upsert must be passed as a keyword argument

This replaces your if-find-else-update block entirely. It will insert if the key doesn't exist and will update if it does.

Before:

{"key":"value", "key2":"Ohai."}

After:

{"key":"value", "key2":"value2", "key3":"value3"}

You can also specify what data you want to write:

data = {"$set":{"key2":"value2"}}

Now your selected document will update the value of "key2" only and leave everything else untouched.

To differentiate between scroll up/down in jQuery, you could use:

var mousewheelevt = (/Firefox/i.test(navigator.userAgent)) ? "DOMMouseScroll" : "mousewheel" //FF doesn't recognize mousewheel as of FF3.x
$('#yourDiv').bind(mousewheelevt, function(e){

    var evt = window.event || e //equalize event object     
    evt = evt.originalEvent ? evt.originalEvent : evt; //convert to originalEvent if possible               
    var delta = evt.detail ? evt.detail*(-40) : evt.wheelDelta //check for detail first, because it is used by Opera and FF

    if(delta > 0) {
        //scroll up
    }
    else{
        //scroll down
    }   
});

This method also works in divs that have overflow:hidden.

I successfully tested it in FireFox, IE and Chrome.