slide modification changed Helper

     public static IHtmlString ActionImageLink(this HtmlHelper html, string action, object routeValues, string styleClass, string alt)
    {
        var url = new UrlHelper(html.ViewContext.RequestContext);
        var anchorBuilder = new TagBuilder("a");
        anchorBuilder.MergeAttribute("href", url.Action(action, routeValues));
        anchorBuilder.AddCssClass(styleClass);
        string anchorHtml = anchorBuilder.ToString(TagRenderMode.Normal);

        return new HtmlString(anchorHtml);
    }

CSS Class

.Edit {
       background: url('../images/edit.png') no-repeat right;
       display: inline-block;
       height: 16px;
       width: 16px;
      }

Create the link just pass the class name

     @Html.ActionImageLink("Edit", new { id = item.ID }, "Edit" , "Edit") 

This is an old post, but for video you might want to consider using MPEG-DASH to obfuscate your files. Plus, it will provide a better streaming experience for your users without the need for a separate streaming server. More info in this post: How to disable video/audio downloading in web pages?

if c:\folder1\folder2\folder3\bin is the path then the following code will return the path base folder of bin folder

//string directory=System.IO.Directory.GetParent(Environment.CurrentDirectory).ToString());

string directory=System.IO.Directory.GetParent(Environment.CurrentDirectory).ToString();

ie,c:\folder1\folder2\folder3

if you want folder2 path then you can get the directory by

string directory = System.IO.Directory.GetParent(System.IO.Directory.GetParent(Environment.CurrentDirectory).ToString()).ToString();

then you will get path as c:\folder1\folder2\

You've got it nearly correct, but you haven't accounted for the this value supplied to the inline code.

<a href="#" onclick="alert(this)">Click Me</a>

is actually closer to:

<a href="#" id="click_me">Click Me</a>
<script type="text/javascript">
document.getElementById('click_me').addEventListener("click", function(event) {
    (function(event) {
        alert(this);
    }).call(document.getElementById('click_me'), event);
});
</script>

Inline event handlers set this equal to the target of the event. You can also use anonymous function in inline script

<a href="#" onclick="(function(){alert(this);})()">Click Me</a>

If you use as following, your code can be more effective than you wrote. You should add another feature.

.abc, .xyz {
margin-left:20px;
width: 100px;
height: 100px;
} 

OR

a.abc, a.xyz {
margin-left:20px;
width: 100px;
height: 100px;
} 

OR

a {
margin-left:20px;
width: 100px;
height: 100px;
} 

Java Strings aren't character Iterable. You'll need:

for (int i = 0; i < examplestring.length(); i++) {
  char c = examplestring.charAt(i);
  ...
}

Awkward I know.

While this is essentially just @Brad's answer again, I thought it might be worth including a slightly modified function which will return the index of the item you're searching for if it exists in the array. If the item is not in the array, it returns -1 instead.

The output of this can be checked just like the "in string" function, If InStr(...) > 0 Then, so I made a little test function below it as an example.

Option Explicit

Public Function IsInArrayIndex(stringToFind As String, arr As Variant) As Long

    IsInArrayIndex = -1

    Dim i As Long
    For i = LBound(arr, 1) To UBound(arr, 1)
        If arr(i) = stringToFind Then
            IsInArrayIndex = i
            Exit Function
        End If
    Next i

End Function

Sub test()

    Dim fruitArray As Variant
    fruitArray = Array("orange", "apple", "banana", "berry")

    Dim result As Long
    result = IsInArrayIndex("apple", fruitArray)

    If result >= 0 Then
        Debug.Print chr(34) & fruitArray(result) & chr(34) & " exists in array at index " & result
    Else
        Debug.Print "does not exist in array"
    End If

End Sub

Then I went a little overboard and fleshed out one for two dimensional arrays because when you generate an array based on a range it's generally in this form.

It returns a single dimension variant array with just two values, the two indices of the array used as an input (assuming the value is found). If the value is not found, it returns an array of (-1, -1).

Option Explicit

Public Function IsInArray2DIndex(stringToFind As String, arr As Variant) As Variant

    IsInArray2DIndex= Array(-1, -1)

    Dim i As Long
    Dim j As Long

    For i = LBound(arr, 1) To UBound(arr, 1)
        For j = LBound(arr, 2) To UBound(arr, 2)
            If arr(i, j) = stringToFind Then
                IsInArray2DIndex= Array(i, j)
                Exit Function
            End If
        Next j
    Next i

End Function

Here's a picture of the data that I set up for the test, followed by the test:

Sub test2()

    Dim fruitArray2D As Variant
    fruitArray2D = sheets("Sheet1").Range("A1:B2").value

    Dim result As Variant
    result = IsInArray2DIndex("apple", fruitArray2D)

    If result(0) >= 0 And result(1) >= 0 Then
        Debug.Print chr(34) & fruitArray2D(result(0), result(1)) & chr(34) & " exists in array at row: " & result(0) & ", col: " & result(1)
    Else
        Debug.Print "does not exist in array"
    End If

End Sub

Code:

using System;
using System.Diagnostics;
namespace playSound
{
    class Program
    {
        public static void Main(string[] args)
        {
            Console.WriteLine(args[0]);

            Process amixerMediaProcess = new Process();
            amixerMediaProcess.StartInfo.CreateNoWindow = false;
            amixerMediaProcess.StartInfo.UseShellExecute = false;
            amixerMediaProcess.StartInfo.ErrorDialog = false;
            amixerMediaProcess.StartInfo.RedirectStandardOutput = false;
            amixerMediaProcess.StartInfo.RedirectStandardInput = false;
            amixerMediaProcess.StartInfo.RedirectStandardError = false;
            amixerMediaProcess.EnableRaisingEvents = true;

            amixerMediaProcess.StartInfo.Arguments = string.Format("{0}","-ssh username@"+args[0]+" -pw password -m commands.txt");
            amixerMediaProcess.StartInfo.FileName = "plink.exe";
            amixerMediaProcess.Start();


            Console.Write("Presskey to continue . . . ");
            Console.ReadKey(true);
    }
}

}

Sample commands.txt:

ps

Link: https://huseyincakir.wordpress.com/2015/08/27/send-commands-to-a-remote-device-over-puttyssh-putty-send-command-from-command-line/

Use Reflection to do this

SomeClass A = SomeClass(...)
PropertyInfo[] properties = A.GetType().GetProperties();

I managed to find the correct one. It is below.

bool val1 = System.Web.HttpContext.Current.User.Identity.IsAuthenticated

EDIT

The credit of this edit goes to @Gianpiero Caretti who suggested this in comment.

bool val1 = (System.Web.HttpContext.Current.User != null) && System.Web.HttpContext.Current.User.Identity.IsAuthenticated

There is a lot of confusion about IdentityDbContext, a quick search in Stackoverflow and you'll find these questions:
" Why is Asp.Net Identity IdentityDbContext a Black-Box?
How can I change the table names when using Visual Studio 2013 AspNet Identity?
Merge MyDbContext with IdentityDbContext"

To answer to all of these questions we need to understand that IdentityDbContext is just a class inherited from DbContext.
Let's take a look at IdentityDbContext source:

/// <summary>
/// Base class for the Entity Framework database context used for identity.
/// </summary>
/// <typeparam name="TUser">The type of user objects.</typeparam>
/// <typeparam name="TRole">The type of role objects.</typeparam>
/// <typeparam name="TKey">The type of the primary key for users and roles.</typeparam>
/// <typeparam name="TUserClaim">The type of the user claim object.</typeparam>
/// <typeparam name="TUserRole">The type of the user role object.</typeparam>
/// <typeparam name="TUserLogin">The type of the user login object.</typeparam>
/// <typeparam name="TRoleClaim">The type of the role claim object.</typeparam>
/// <typeparam name="TUserToken">The type of the user token object.</typeparam>
public abstract class IdentityDbContext<TUser, TRole, TKey, TUserClaim, TUserRole, TUserLogin, TRoleClaim, TUserToken> : DbContext
    where TUser : IdentityUser<TKey, TUserClaim, TUserRole, TUserLogin>
    where TRole : IdentityRole<TKey, TUserRole, TRoleClaim>
    where TKey : IEquatable<TKey>
    where TUserClaim : IdentityUserClaim<TKey>
    where TUserRole : IdentityUserRole<TKey>
    where TUserLogin : IdentityUserLogin<TKey>
    where TRoleClaim : IdentityRoleClaim<TKey>
    where TUserToken : IdentityUserToken<TKey>
{
    /// <summary>
    /// Initializes a new instance of <see cref="IdentityDbContext"/>.
    /// </summary>
    /// <param name="options">The options to be used by a <see cref="DbContext"/>.</param>
    public IdentityDbContext(DbContextOptions options) : base(options)
    { }

    /// <summary>
    /// Initializes a new instance of the <see cref="IdentityDbContext" /> class.
    /// </summary>
    protected IdentityDbContext()
    { }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of Users.
    /// </summary>
    public DbSet<TUser> Users { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of User claims.
    /// </summary>
    public DbSet<TUserClaim> UserClaims { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of User logins.
    /// </summary>
    public DbSet<TUserLogin> UserLogins { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of User roles.
    /// </summary>
    public DbSet<TUserRole> UserRoles { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of User tokens.
    /// </summary>
    public DbSet<TUserToken> UserTokens { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of roles.
    /// </summary>
    public DbSet<TRole> Roles { get; set; }

    /// <summary>
    /// Gets or sets the <see cref="DbSet{TEntity}"/> of role claims.
    /// </summary>
    public DbSet<TRoleClaim> RoleClaims { get; set; }

    /// <summary>
    /// Configures the schema needed for the identity framework.
    /// </summary>
    /// <param name="builder">
    /// The builder being used to construct the model for this context.
    /// </param>
    protected override void OnModelCreating(ModelBuilder builder)
    {
        builder.Entity<TUser>(b =>
        {
            b.HasKey(u => u.Id);
            b.HasIndex(u => u.NormalizedUserName).HasName("UserNameIndex").IsUnique();
            b.HasIndex(u => u.NormalizedEmail).HasName("EmailIndex");
            b.ToTable("AspNetUsers");
            b.Property(u => u.ConcurrencyStamp).IsConcurrencyToken();

            b.Property(u => u.UserName).HasMaxLength(256);
            b.Property(u => u.NormalizedUserName).HasMaxLength(256);
            b.Property(u => u.Email).HasMaxLength(256);
            b.Property(u => u.NormalizedEmail).HasMaxLength(256);
            b.HasMany(u => u.Claims).WithOne().HasForeignKey(uc => uc.UserId).IsRequired();
            b.HasMany(u => u.Logins).WithOne().HasForeignKey(ul => ul.UserId).IsRequired();
            b.HasMany(u => u.Roles).WithOne().HasForeignKey(ur => ur.UserId).IsRequired();
        });

        builder.Entity<TRole>(b =>
        {
            b.HasKey(r => r.Id);
            b.HasIndex(r => r.NormalizedName).HasName("RoleNameIndex");
            b.ToTable("AspNetRoles");
            b.Property(r => r.ConcurrencyStamp).IsConcurrencyToken();

            b.Property(u => u.Name).HasMaxLength(256);
            b.Property(u => u.NormalizedName).HasMaxLength(256);

            b.HasMany(r => r.Users).WithOne().HasForeignKey(ur => ur.RoleId).IsRequired();
            b.HasMany(r => r.Claims).WithOne().HasForeignKey(rc => rc.RoleId).IsRequired();
        });

        builder.Entity<TUserClaim>(b => 
        {
            b.HasKey(uc => uc.Id);
            b.ToTable("AspNetUserClaims");
        });

        builder.Entity<TRoleClaim>(b => 
        {
            b.HasKey(rc => rc.Id);
            b.ToTable("AspNetRoleClaims");
        });

        builder.Entity<TUserRole>(b => 
        {
            b.HasKey(r => new { r.UserId, r.RoleId });
            b.ToTable("AspNetUserRoles");
        });

        builder.Entity<TUserLogin>(b =>
        {
            b.HasKey(l => new { l.LoginProvider, l.ProviderKey });
            b.ToTable("AspNetUserLogins");
        });

        builder.Entity<TUserToken>(b => 
        {
            b.HasKey(l => new { l.UserId, l.LoginProvider, l.Name });
            b.ToTable("AspNetUserTokens");
        });
    }
}

Based on the source code if we want to merge IdentityDbContext with our DbContext we have two options:

First Option:
Create a DbContext which inherits from IdentityDbContext and have access to the classes.

   public class ApplicationDbContext 
    : IdentityDbContext
{
    public ApplicationDbContext()
        : base("DefaultConnection")
    {
    }

    static ApplicationDbContext()
    {
        Database.SetInitializer<ApplicationDbContext>(new ApplicationDbInitializer());
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }

    // Add additional items here as needed
}

Extra Notes:

1) We can also change asp.net Identity default table names with the following solution:

    public class ApplicationDbContext : IdentityDbContext
    {    
        public ApplicationDbContext(): base("DefaultConnection")
        {
        }

        protected override void OnModelCreating(System.Data.Entity.DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);
            modelBuilder.Entity<IdentityUser>().ToTable("user");
            modelBuilder.Entity<ApplicationUser>().ToTable("user");

            modelBuilder.Entity<IdentityRole>().ToTable("role");
            modelBuilder.Entity<IdentityUserRole>().ToTable("userrole");
            modelBuilder.Entity<IdentityUserClaim>().ToTable("userclaim");
            modelBuilder.Entity<IdentityUserLogin>().ToTable("userlogin");
        }
    }

2) Furthermore we can extend each class and add any property to classes like 'IdentityUser', 'IdentityRole', ...

    public class ApplicationRole : IdentityRole<string, ApplicationUserRole>
{
    public ApplicationRole() 
    {
        this.Id = Guid.NewGuid().ToString();
    }

    public ApplicationRole(string name)
        : this()
    {
        this.Name = name;
    }

    // Add any custom Role properties/code here
}


// Must be expressed in terms of our custom types:
public class ApplicationDbContext 
    : IdentityDbContext<ApplicationUser, ApplicationRole, 
    string, ApplicationUserLogin, ApplicationUserRole, ApplicationUserClaim>
{
    public ApplicationDbContext()
        : base("DefaultConnection")
    {
    }

    static ApplicationDbContext()
    {
        Database.SetInitializer<ApplicationDbContext>(new ApplicationDbInitializer());
    }

    public static ApplicationDbContext Create()
    {
        return new ApplicationDbContext();
    }

    // Add additional items here as needed
}

To save time we can use AspNet Identity 2.0 Extensible Project Template to extend all the classes.

Second Option:(Not recommended)
We actually don't have to inherit from IdentityDbContext if we write all the code ourselves.
So basically we can just inherit from DbContext and implement our customized version of "OnModelCreating(ModelBuilder builder)" from the IdentityDbContext source code

Use this function begining from SQL SERVER 2016

Select Count(value) From STRING_SPLIT('AAA AAA AAA',' ');

-- Output : 3 

When This function used with count function it gives you how many character exists in string

Evidently, sometimes, the display properties of parent of the element containing the matter that shouldn't overflow should also be set to overflow:hidden as well, e.g.:

<div style="overflow: hidden">
  <div style="overflow: hidden">some text that should not overflow<div>
</div>

Why? I have no idea but it worked for me. See https://medium.com/@crrollyson/overflow-hidden-not-working-check-the-child-element-c33ac0c4f565 (ignore the sniping at stackoverflow!)

You can use below query to create table and insert distinct values into this table:

Select Distinct Column1, Column2, Column3 into New_Users from Old_Users

It did not worked for me until i created:

#created cc string
cc = ""[email protected];
#added cc to header
msg['Cc'] = cc

and than added cc in recipient [list] like:

s.sendmail(me, [you,cc], msg.as_string())

To UPLOAD a single file, you will need to create a bash script. Something like the following should work on OS X if you have sshpass installed.

Usage:

sftpx <password> <user@hostname> <localfile> <remotefile>

Put this script somewhere in your path and call it sftpx:

#!/bin/bash

export RND=`cat /dev/urandom | env LC_CTYPE=C tr -cd 'a-f0-9' | head -c 32`
export TMPDIR=/tmp/$RND
export FILENAME=$(basename "$4")
export DSTDIR=$(dirname "$4")

mkdir $TMPDIR
cp "$3" $TMPDIR/$FILENAME

export SSHPASS=$1
sshpass -e sftp -oBatchMode=no -b - $2 << !
   lcd $TMPDIR
   cd $DSTDIR
   put $FILENAME
   bye
!

rm $TMPDIR/$FILENAME
rmdir $TMPDIR

Git 2.7 (Q4 2015) will introduce -local as an instruction.
It means that, in addition to:

--date=(relative|local|default|iso|iso-strict|rfc|short|raw)

you will also have:

--date=(default-local|iso-local|iso-strict-local|rfc-local|short-local)

The -local suffix cannot be used with raw or relative. Reference.

You now can ask for any date format using the local timezone. See

• commit 99264e9,
• commit db7bae2,
• commit dc6d782,
• commit f3c1ba5,
• commit f95cecf,
• commit 4b1c5e1,
• commit 8f50d26,
• commit 78a8441,
• commit 2df4e29 (03 Sep 2015) by John Keeping (johnkeeping).

See commit add00ba, commit 547ed71 (03 Sep 2015) by Jeff King (peff).
^{(Merged by Junio C Hamano -- gitster -- in commit 7b09c45, 05 Oct 2015)}

In particular, the last from above (commit add00ba) mentions:

date: make "local" orthogonal to date format:

Most of our "--date" modes are about the format of the date: which items we show and in what order.
But "--date=local" is a bit of an oddball. It means "show the date in the normal format, but using the local timezone".
The timezone we use is orthogonal to the actual format, and there is no reason we could not have "localized iso8601", etc.

This patch adds a "local" boolean field to "struct date_mode", and drops the DATE_LOCAL element from the date_mode_type enum (it's now just DATE_NORMAL plus local=1).
The new feature is accessible to users by adding "-local" to any date mode (e.g., "iso-local"), and we retain "local" as an alias for "default-local" for backwards compatibility.

Use the download attribute.

var link = document.createElement('a');
link.href = url;
link.download = 'file.pdf';
link.dispatchEvent(new MouseEvent('click'));

I tried to manage using the below command. This will write the output in log file as well as print on console.

#!/bin/bash

# Log Location on Server.
LOG_LOCATION=/home/user/scripts/logs
exec > >(tee -i $LOG_LOCATION/MylogFile.log)
exec 2>&1

echo "Log Location should be: [ $LOG_LOCATION ]"

Please note: This is bash code so if you run it using sh it will through syntax error

Use the put method: https://developer.android.com/reference/org/json/JSONObject.html

JSONObject person =  jsonArray.getJSONObject(0).getJSONObject("person");
person.put("name", "Sammie");

The relevant part of C11 standard draft n1570 6.7.9 initialization says:

14 An array of character type may be initialized by a character string literal or UTF-8 string literal, optionally enclosed in braces. Successive bytes of the string literal (including the terminating null character if there is room or if the array is of unknown size) initialize the elements of the array.

and

21 If there are fewer initializers in a brace-enclosed list than there are elements or members of an aggregate, or fewer characters in a string literal used to initialize an array of known size than there are elements in the array, the remainder of the aggregate shall be initialized implicitly the same as objects that have static storage duration.

Thus, the '\0' is appended, if there is enough space, and the remaining characters are initialized with the value that a static char c; would be initialized within a function.

Finally,

10 If an object that has automatic storage duration is not initialized explicitly, its value is indeterminate. If an object that has static or thread storage duration is not initialized explicitly, then:

[--]

• if it has arithmetic type, it is initialized to (positive or unsigned) zero;

[--]

Thus, char being an arithmetic type the remainder of the array is also guaranteed to be initialized with zeroes.

With EF or LINQ to SQL:

var item = db.Items.OrderByDescending(i => i.Value).FirstOrDefault();

With LINQ to Objects I suggest to use morelinq extension MaxBy (get morelinq from nuget):

var item = items.MaxBy(i => i.Value);

As of pip 1.3, there is a pip show command.

$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe

In older versions, pip freeze and grep should do the job nicely.

$ pip freeze | grep Jinja2
Jinja2==2.7.3

This can be done without specifying the columns in the INSERT INTO part if you are supplying values for all columns in the SELECT part.

Let's say table1 has two columns. This query should work:

INSERT INTO table1
SELECT  col1, col2
FROM    table2

This WOULD NOT work (value for col2 is not specified):

INSERT INTO table1
SELECT  col1
FROM    table2

I'm using MS SQL Server. I don't know how other RDMS work.

Could this do for you? Check my JSFiddle

And the code:

HTML

<div class="container">
    <div class="div1">Div 1</div>
    <div class="div2">Div 2</div>
</div>

CSS

div.container {
    background-color: #FF0000;
    margin: auto;   
    width: 304px;
}

div.div1 {
    border: 1px solid #000;
    float: left;
    width: 150px;
}

div.div2 {
    border: 1px solid red;
    float: left;
    width: 150px;
}

another way, will also work on MySQL and PostgreSQL

select TABLE_NAME from INFORMATION_SCHEMA.TABLES
where TABLE_TYPE = 'BASE TABLE'

JavaScript

var myObj = {
   id: "c001",
   name: "Hello Test"
}

Result(JSON)

{
   "id": "c001",
   "name": "Hello Test"
}

You can use import data with wizard and there you can choose destination table.

Run the wizard. In selecting source tables and views window you see two parts. Source and Destination.

Click on the field under Destination part to open the drop down and select you destination table and edit its mappings if needed.

EDIT

Merely typing the name of the table does not work. It appears that the name of the table must include the schema (dbo) and possibly brackets. Note the dropdown on the right hand side of the text field.

There is a standards based replacement,DOMContentLoaded that is supported by over 90%+ of browsers, but not IE8 (So below code use by JQuery for browser support):

document.addEventListener("DOMContentLoaded", function(event) { 
  //do work
});

jQuery's native function is much more complicated than just window.onload, as depicted below.

function bindReady(){
    if ( readyBound ) return;
    readyBound = true;

    // Mozilla, Opera and webkit nightlies currently support this event
    if ( document.addEventListener ) {
        // Use the handy event callback
        document.addEventListener( "DOMContentLoaded", function(){
            document.removeEventListener( "DOMContentLoaded", arguments.callee, false );
            jQuery.ready();
        }, false );

    // If IE event model is used
    } else if ( document.attachEvent ) {
        // ensure firing before onload,
        // maybe late but safe also for iframes
        document.attachEvent("onreadystatechange", function(){
            if ( document.readyState === "complete" ) {
                document.detachEvent( "onreadystatechange", arguments.callee );
                jQuery.ready();
            }
        });

        // If IE and not an iframe
        // continually check to see if the document is ready
        if ( document.documentElement.doScroll && window == window.top ) (function(){
            if ( jQuery.isReady ) return;

            try {
                // If IE is used, use the trick by Diego Perini
                // http://javascript.nwbox.com/IEContentLoaded/
                document.documentElement.doScroll("left");
            } catch( error ) {
                setTimeout( arguments.callee, 0 );
                return;
            }

            // and execute any waiting functions
            jQuery.ready();
        })();
    }

    // A fallback to window.onload, that will always work
    jQuery.event.add( window, "load", jQuery.ready );
}

When you do not provide mapDispatchToProps as a second argument, like this:

export default connect(mapStateToProps)(Checkbox)

then you are automatically getting the dispatch to component's props, so you can just:

class SomeComp extends React.Component {
  constructor(props, context) {
    super(props, context);
  }
  componentDidMount() {
    this.props.dispatch(ACTION GOES HERE);
  }
....

without any mapDispatchToProps

The following script returns a new array containing only unique values. It works on string and numbers. No requirement for additional libraries only vanilla JS.

Browser support:

Feature Chrome  Firefox (Gecko)     Internet Explorer   Opera   Safari
Basic support   (Yes)   1.5 (1.8)   9                   (Yes)   (Yes)

https://jsfiddle.net/fzmcgcxv/3/

var duplicates = ["Mike","Matt","Nancy","Adam","Jenny","Nancy","Carl","Mike","Mike","Nancy","Carl"]; 
var unique = duplicates.filter(function(elem, pos) {
    return duplicates.indexOf(elem) == pos;
  }); 
alert(unique);

I looked into this once a long time ago, and you can read my little write-up on it. Here’s the Mathematica source.

By using generating functions, you can get a closed-form constant-time solution to the problem. Graham, Knuth, and Patashnik’s Concrete Mathematics is the book for this, and contains a fairly extensive discussion of the problem. Essentially you define a polynomial where the nth coefficient is the number of ways of making change for n dollars.

Pages 4-5 of the writeup show how you can use Mathematica (or any other convenient computer algebra system) to compute the answer for 10^10^6 dollars in a couple seconds in three lines of code.

(And this was long enough ago that that’s a couple of seconds on a 75Mhz Pentium...)

You should be able to access the INSERTED table and retrieve ID or table's primary key. Something similar to this example ...

CREATE TRIGGER [dbo].[after_update] ON [dbo].[MYTABLE]
AFTER UPDATE AS 
BEGIN
    DECLARE @id AS INT
    SELECT @id = [IdColumnName]
    FROM INSERTED

    UPDATE MYTABLE 
    SET mytable.CHANGED_ON = GETDATE(),
    CHANGED_BY=USER_NAME(USER_ID())
    WHERE [IdColumnName] = @id

Here's a link on MSDN on the INSERTED and DELETED tables available when using triggers: http://msdn.microsoft.com/en-au/library/ms191300.aspx

It depends on what you mean. Do you want actual tab characters in your file to appear 4 spaces wide, or by "tab" do you actually mean an indent, generated by pressing the tab key, which would result in the file literally containing (up to) 4 space characters for each "tab" you type?

Depending on your answer, one of the following sets of settings should work for you:

• For tab characters that appear 4-spaces-wide:

  set tabstop=4
  

  If you're using actual tab character in your source code you probably also want these settings (these are actually the defaults, but you may want to set them defensively):

  set softtabstop=0 noexpandtab
  

  Finally, if you want an indent to correspond to a single tab, you should also use:

  set shiftwidth=4
  

• For indents that consist of 4 space characters but are entered with the tab key:

  set tabstop=8 softtabstop=0 expandtab shiftwidth=4 smarttab
  

To make the above settings permanent add these lines to your vimrc.

In case you need to make adjustments, or would simply like to understand what these options all mean, here's a breakdown of what each option means:

tabstop

The width of a hard tabstop measured in "spaces" -- effectively the (maximum) width of an actual tab character.

shiftwidth

The size of an "indent". It's also measured in spaces, so if your code base indents with tab characters then you want shiftwidth to equal the number of tab characters times tabstop. This is also used by things like the =, > and < commands.

softtabstop

Setting this to a non-zero value other than tabstop will make the tab key (in insert mode) insert a combination of spaces (and possibly tabs) to simulate tab stops at this width.

expandtab

Enabling this will make the tab key (in insert mode) insert spaces instead of tab characters. This also affects the behavior of the retab command.

smarttab

Enabling this will make the tab key (in insert mode) insert spaces or tabs to go to the next indent of the next tabstop when the cursor is at the beginning of a line (i.e. the only preceding characters are whitespace).

For more details on any of these see :help 'optionname' in vim (e.g. :help 'tabstop')

I was facing this issue after i updated to Android-Studio 3.6 the only way that worked for me was downgrading project build.gradle setting by changing

from

dependencies {
    classpath 'com.android.tools.build:gradle:3.6.0'
}

to

dependencies {
    classpath 'com.android.tools.build:gradle:3.3.0'
}

After some initial research I thought songdetails might fit my use case, but it doesn't handle .m4b files. Mutagen does. Note that while some have (reasonably) taken issue with Mutagen's surfacing of format-native keys, that vary from format to format (TIT2 for mp3, title for ogg, \xa9nam for mp4, Title for WMA etc.), mutagen.File() has a (new?) easy=True parameter that provides EasyMP3/EasyID3 tags, which have a consistent, albeit limited, set of keys. I've only done limited testing so far, but the common keys, like album, artist, albumartist, genre, tracknumber, discnumber, etc. are all present and identical for .mb4 and .mp3 files when using easy=True, making it very convenient for my purposes.

unset is the command you're looking for.

unset GNUPLOT_DRIVER_DIR

The Google style guide contains an excellent Python style guide. It includes conventions for readable docstring syntax that offers better guidance than PEP-257. For example:

def square_root(n):
    """Calculate the square root of a number.

    Args:
        n: the number to get the square root of.
    Returns:
        the square root of n.
    Raises:
        TypeError: if n is not a number.
        ValueError: if n is negative.

    """
    pass

I like to extend this to also include type information in the arguments, as described in this Sphinx documentation tutorial. For example:

def add_value(self, value):
    """Add a new value.

       Args:
           value (str): the value to add.
    """
    pass

In latin1 each character is exactly one byte long. In utf8 a character can consist of more than one byte. Consequently utf8 has more characters than latin1 (and the characters they do have in common aren't necessarily represented by the same byte/bytesequence).

You can use easy_date to make it easy:

import date_converter
my_date = date_converter.date_to_string(today, '%Y-%m-%d')

An other solution (with the assumption you know your date formats are always YYYY/MM/DD with lead zeros) is the max() and min() function. I figure this is okay given all the other answers assume the yyyy-mm-dd format too and it's the common naming convention for folders in file systems if ever you wanted to make sure they sorted in date order.

As others have said, given the order of the numbers you can compare the strings, no need for strtotime() function.

Examples:

$biggest = max("2018/10/01","2018/10/02");

The advantage being you can stick more dates in there instead of just comparing two.

$biggest = max("2018/04/10","2019/12/02","2016/03/20");

To work out if a date is in between two dates you could compare the result of min() and max()

$startDate="2018/04/10";
$endDate="2018/07/24";
$check="2018/05/03";
if(max($startDate,$check)==min($endDate,$check)){
    // It's in the middle
}

It wouldn't work with any other date format, but for that one it does. No need to convert to seconds and no need for date functions.

VARCHAR(512) (or similar) should be sufficient. However, since you don't really know the maximum length of the URLs in question, I might just go direct to TEXT. The danger with this is of course loss of efficiency due to CLOBs being far slower than a simple string datatype like VARCHAR.

Update for mid 2016:

The things are changing so fast that if it's late 2017 this answer might not be up to date anymore!

Beginners can quickly get lost in choice of build tools and workflows, but what's most up to date in 2016 is not using Bower, Grunt or Gulp at all! With help of Webpack you can do everything directly in NPM!

• Google "npm as build tool" result: https://medium.com/@dabit3/introduction-to-using-npm-as-a-build-tool-b41076f488b0#.c33e74tsa

• Webpack: https://webpack.github.io/docs/installation.html

Don't get me wrong people use other workflows and I still use GULP in my legacy project(but slowly moving out of it), but this is how it's done in the best companies and developers working in this workflow make a LOT of money!

Look at this template it's a very up-to-date setup consisting of a mixture of the best and the latest technologies: https://github.com/coryhouse/react-slingshot

• Webpack
• NPM as a build tool (no Gulp, Grunt or Bower)
• React with Redux
• ESLint
• the list is long. Go and explore!

Your questions:

When I want to add a package (and check in the dependency into git), where does it belong - into package.json or into bower.json

• Everything belongs in package.json now

• Dependencies required for build are in "devDependencies" i.e. npm install require-dir --save-dev (--save-dev updates your package.json by adding an entry to devDependencies)

• Dependencies required for your application during runtime are in "dependencies" i.e. npm install lodash --save (--save updates your package.json by adding an entry to dependencies)

If that is the case, when should I ever install packages explicitly like that without adding them to the file that manages dependencies (apart from installing command line tools globally)?

Always. Just because of comfort. When you add a flag (--save-dev or --save) the file that manages deps (package.json) gets updated automatically. Don't waste time by editing dependencies in it manually. Shortcut for npm install --save-dev package-name is npm i -D package-name and shortcut for npm install --save package-name is npm i -S package-name

Try with:

#! /bin/bash

i=0
while read line
do
    array[ $i ]="$line"        
    (( i++ ))
done < <(ls -ls)

echo ${array[1]}

In your version, the while runs in a subshell, the environment variables you modify in the loop are not visible outside it.

(Do keep in mind that parsing the output of ls is generally not a good idea at all.)

Webservices require unique namespaces so they don't confuse each others schemas and whatever with each other. A URL (domain, subdomain, subsubdomain, etc) is a clever identifier as it's "guaranteed" to be unique, and in most circumstances you've already got one.

Check out your table index. If that field got index (e.g. B+ tree index.) At that time update or insert query throws these kinds of error.

Remove indexing and then try to fire same query.

If there is no such mechanism, what is a pattern/convention for such problems?

The term 'cleanup' might be more appropriate, but will use 'destructor' to match OP

Suppose you write some javascript entirely with 'function's and 'var's. Then you can use the pattern of writing all the functions code within the framework of a try/catch/finally lattice. Within finally perform the destruction code.

Instead of the C++ style of writing object classes with unspecified lifetimes, and then specifying the lifetime by arbitrary scopes and the implicit call to ~() at scope end (~() is destructor in C++), in this javascript pattern the object is the function, the scope is exactly the function scope, and the destructor is the finally block.

If you are now thinking this pattern is inherently flawed because try/catch/finally doesn't encompass asynchronous execution which is essential to javascript, then you are correct. Fortunately, since 2018 the asynchronous programming helper object Promise has had a prototype function finally added to the already existing resolve and catch prototype functions. That means that that asynchronous scopes requiring destructors can be written with a Promise object, using finally as the destructor. Furthermore you can use try/catch/finally in an async function calling Promises with or without await, but must be aware that Promises called without await will be execute asynchronously outside the scope and so handle the desctructor code in a final then.

In the following code PromiseA and PromiseB are some legacy API level promises which don't have finally function arguments specified. PromiseC DOES have a finally argument defined.

async function afunc(a,b){
    try {
        function resolveB(r){ ... }
        function catchB(e){ ... }
        function cleanupB(){ ... }
        function resolveC(r){ ... }
        function catchC(e){ ... }
        function cleanupC(){ ... }
        ...
        // PromiseA preced by await sp will finish before finally block.  
        // If no rush then safe to handle PromiseA cleanup in finally block 
        var x = await PromiseA(a);
        // PromiseB,PromiseC not preceded by await - will execute asynchronously
        // so might finish after finally block so we must provide 
        // explicit cleanup (if necessary)
        PromiseB(b).then(resolveB,catchB).then(cleanupB,cleanupB);
        PromiseC(c).then(resolveC,catchC,cleanupC);
    }
    catch(e) { ... }
    finally { /* scope destructor/cleanup code here */ }
}

I am not advocating that every object in javascript be written as a function. Instead, consider the case where you have a scope identified which really 'wants' a destructor to be called at its end of life. Formulate that scope as a function object, using the pattern's finally block (or finally function in the case of an asynchronous scope) as the destructor. It is quite like likely that formulating that functional object obviated the need for a non-function class which would otherwise have been written - no extra code was required, aligning scope and class might even be cleaner.

Note: As others have written, we should not confuse destructors and garbage collection. As it happens C++ destructors are often or mainly concerned with manual garbage collection, but not exclusively so. Javascript has no need for manual garbage collection, but asynchronous scope end-of-life is often a place for (de)registering event listeners, etc..

On Linux, you can get ELF header information by using either of the following two commands:

file {YOUR_JRE_LOCATION_HERE}/bin/java

o/p: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.4.0, dynamically linked (uses shared libs), for GNU/Linux 2.4.0, not stripped

or

readelf -h {YOUR_JRE_LOCATION_HERE}/bin/java | grep 'Class'

o/p: Class: ELF64

Assuming you have your debug view just how you like it and don't want to have to reset it everytime this bug appears, try this. This assumes your "Debug View" has both "Expressions" and "Variables" views open.

Double-Click the Expressions tab (the actual tab with the text, not the 'window bar'). This will maximise it. Repeat to restore it to previous size/location. That should reset everything except Expressions. Repeat for the variables tab and it will reset expressions.

This worked for me on Windows 10 with Eclipse:
Version: 2018-09 (4.9.0)
Build id: 20180917-1800
Java: jdk1.8.0_171

Here's a quick way to do it, won't require anything besides sys.. though functionality is limited:

flag = "--flag" in sys.argv[1:]

[1:] is in case if the full file name is --flag

You can use the -as operator. If casting succeed you get back a number:

$numberAsString -as [int]

It is very dependent of the engine that you use for generating html files. If you are using Hugo for generating htmls you have to write down like this:

<a href="https://example.com" target="_blank" rel="noopener"><span>Example Text</span> </a>.

If I understand the situation correctly, you are just passing json data through the http body, instead of application/x-www-form-urlencoded data.

You can fetch this data with this snippet:

$request_body = file_get_contents('php://input');

If you are passing json, then you can do:

$data = json_decode($request_body);

$data then contains the json data is php array.

php://input is a so called wrapper.

php://input is a read-only stream that allows you to read raw data from the request body. In the case of POST requests, it is preferable to use php://input instead of $HTTP_RAW_POST_DATA as it does not depend on special php.ini directives. Moreover, for those cases where $HTTP_RAW_POST_DATA is not populated by default, it is a potentially less memory intensive alternative to activating always_populate_raw_post_data. php://input is not available with enctype="multipart/form-data".

Clear Instructions On How to Add A Collaborator - 2020 Update

Pictures are worth a thousand words. Let's put that to the test:

Picture Instructions (Click to Zoom in):

.......and videos/gifs are worth another thousand more:

Gif Instructions (Click to Zoom in):

Hopefully the pictures/gif make it easier for you to configure this!

Here is working version:

var newVal = 10;
var slider = $('#slider');        
var s = $(slider);
$(slider).val(newVal);
$(slider).slider('refresh');

In angular 7 got this fixed by adding these lines to .module.ts file:

import { CommonModule } from '@angular/common'; imports: [CommonModule]

For Vue2 this applies:

var bus = new Vue()

// in component A's method

bus.$emit('id-selected', 1)

// in component B's created hook

bus.$on('id-selected', function (id) {

  // ...
})

See here for the Vue docs. And here is more detail on how to set up this event bus exactly.

If you'd like more info on when to use properties, events and/ or centralized state management see this article.

See below comment of Thomas regarding Vue 3.

Add a class with a "paddingtop" so it works ;)

<h1><a class="paddingtop">Bar</a></h1>

And for css you have:

.paddingtop { 
   padding-top: 90px; 
}

Login to virtual machine use below command to check ip address. (anyone will work)

1. ifconfig
2. ip addr show

If you used NAT for your virtual machine settings(your machine ip will be 10.0.2.15), then you have to use port forwarding to connect to machine. IP address will be 127.0.0.1

If you used bridged networking/Host only networking, then you will have separate Ip address. Use that IP address to connect virtual machine

Just to add, when overriding prefersStatusBarHidden method or variable, the View controller-based status bar appearance in Info.plist must be YES, otherwise the override will have no effect

You need to make your regex pattern 'non-greedy' by adding a '?' after the '.+'

By default, '*' and '+' are greedy in that they will match as long a string of chars as possible, ignoring any matches that might occur within the string.

Non-greedy makes the pattern only match the shortest possible match.

See Watch Out for The Greediness! for a better explanation.

Or alternately, change your regex to

\(([^\)]+)\)

which will match any grouping of parens that do not, themselves, contain parens.

All the answers assume that the functions can be accessed through global scope (window). However, the OP did not make this assumption.

If the functions live in a local scope (aka closure) and are not referenced by some other local object, bad luck: You have to use eval() AFAIK, see dynamically call local function in javascript

Images have display: inline by default.
You might want to put the image inside the paragraph.
<p><img /></p>

Try this

SELECT Count(*) AS N
FROM
(SELECT DISTINCT Name FROM table1) AS T;

Read this for more info.

Use Predefined Character Ranges

echo $words= preg_replace('/[[:digit:]]/','', $words);

Bundle extras = getIntent().getExtras();
Set<String> ks = extras.keySet();
Iterator<String> iterator = ks.iterator();
while (iterator.hasNext()) {
    Log.d("KEY", iterator.next());
}

You can use the CSS property max-width and use it with ch unit.
And, as this is a <span>, use a display: inline-block; (or block).

Here is an example:

<span style="
  display:inline-block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 13ch;">
Lorem ipsum dolor sit amet
</span>

Which outputs:

Lorem ipsum...

<span style="_x000D_
  display:inline-block;_x000D_
  white-space: nowrap;_x000D_
  overflow: hidden;_x000D_
  text-overflow: ellipsis;_x000D_
  max-width: 13ch;">_x000D_
Lorem ipsum dolor sit amet_x000D_
</span>

add this at the top of file,

header('content-type: application/json; charset=utf-8');
header("access-control-allow-origin: *");

The Visual Studio Build tools are a different download than the IDE. They appear to be a pretty small subset, and they're called Build Tools for Visual Studio 2019 (download).

You can use the GUI to do the installation, or you can script the installation of msbuild:

vs_buildtools.exe --add Microsoft.VisualStudio.Workload.MSBuildTools --quiet

Microsoft.VisualStudio.Workload.MSBuildTools is a "wrapper" ID for the three subcomponents you need:

• Microsoft.Component.MSBuild
• Microsoft.VisualStudio.Component.CoreBuildTools
• Microsoft.VisualStudio.Component.Roslyn.Compiler

You can find documentation about the other available CLI switches here.

The build tools installation is much quicker than the full IDE. In my test, it took 5-10 seconds. With --quiet there is no progress indicator other than a brief cursor change. If the installation was successful, you should be able to see the build tools in %programfiles(x86)%\Microsoft Visual Studio\2019\BuildTools\MSBuild\Current\Bin.

If you don't see them there, try running without --quiet to see any error messages that may occur during installation.

Revoke USB debugging authorizations and then disable USB debugging on your mobile. Re-enable USB debugging, then connect to the USB port. It will ask USB debugging permission for the specific computer. Select "Always allow from this computer", then press OK. This worked for me.

You can try the following

import datetime

now = datetime.datetime.now()
print(now)

or

import datetime

now = datetime.datetime.now()
print(now.strftime("%Y-%b-%d, %A %I:%M:%S"))

You can with regular expressions Input Patterns (check browser compatibility)

<input id="password" name="password" type="password" pattern="^\S{6,}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'Must have at least 6 characters' : ''); if(this.checkValidity()) form.password_two.pattern = this.value;" placeholder="Password" required>

<input id="password_two" name="password_two" type="password" pattern="^\S{6,}$" onchange="this.setCustomValidity(this.validity.patternMismatch ? 'Please enter the same Password as above' : '');" placeholder="Verify Password" required>

If "SOMETHING DONE" doesn't invovle any output via echo/print/etc, then:

<?php
   // SOMETHING DONE

   header('Location: http://stackoverflow.com');
?>

#!/usr/bin/env python
"""Print a field specified by row, column numbers from given csv file.

USAGE:
    %prog csv_filename row_number column_number
"""
import csv
import sys

filename = sys.argv[1]
row_number, column_number = [int(arg, 10)-1 for arg in sys.argv[2:])]

with open(filename, 'rb') as f:
     rows = list(csv.reader(f))
     print rows[row_number][column_number]

Example

$ python print-csv-field.py input.csv 2 2
ddddd

Note: list(csv.reader(f)) loads the whole file in memory. To avoid that you could use itertools:

import itertools
# ...
with open(filename, 'rb') as f:
     row = next(itertools.islice(csv.reader(f), row_number, row_number+1))
     print row[column_number]

$uuid = vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex(random_bytes(16)), 4));

If you search the first char of string in Sql string

SELECT CHARINDEX('char', 'my char')

=> return 4

Use this to set the orientation of the screen:

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

or

setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);

and don't forget to add this to your manifest:

android:configChanges = "orientation"

This is one way

<div style="position: relative; 
            width: 200px; 
            height: 150px; 
            border: 1px solid black;">

    <div style="position: absolute; 
                bottom: 0; 
                width: 100%; 
                height: 50px; 
                border: 1px solid red;">
    </div>
</div>

But because the inner div is positioned absolutely, you'll always have to worry about other content in the outer div overlapping it (and you'll always have to set fixed heights).

If you can do it, it's better to make that inner div the last DOM object in your outer div and have it set to "clear: both".

Use java -cp myjar.jar com.mypackage.myClass.

1. If the class is not in a package then simply java -cp myjar.jar myClass.

2. If you are not within the directory where myJar.jar is located, then you can do:

   1. On Unix or Linux platforms:

      java -cp /location_of_jar/myjar.jar com.mypackage.myClass

   2. On Windows:

      java -cp c:\location_of_jar\myjar.jar com.mypackage.myClass

def main(argv):
    host = argv[0]
    type = argv[1]
    val = argv[2]

    ping = subprocess.Popen(['python ftp.py %s %s %s'%(host,type,val)],stdout = subprocess.PIPE,stderr = subprocess.PIPE,shell=True)
    out = ping.communicate()[0]
    output = str(out)
    print output

mvn install:install-file -DgroupId=com.paic.maven -DartifactId=tplconfig-maven-plugin -Dversion=1.0 -Dpackaging=jar -Dfile=tplconfig-maven-plugin-1.0.jar -DgeneratePom=true

Install the jar to local repository.

Using getimagesize function, we can also get these properties of that specific image-

<?php

list($width, $height, $type, $attr) = getimagesize("image_name.jpg");

echo "Width: " .$width. "<br />";
echo "Height: " .$height. "<br />";
echo "Type: " .$type. "<br />";
echo "Attribute: " .$attr. "<br />";

//Using array
$arr = array('h' => $height, 'w' => $width, 't' => $type, 'a' => $attr);
?>

Result like this -

Width: 200
Height: 100
Type: 2
Attribute: width='200' height='100'

Type of image consider like -

1 = GIF
2 = JPG
3 = PNG
4 = SWF
5 = PSD
6 = BMP
7 = TIFF(intel byte order)
8 = TIFF(motorola byte order)
9 = JPC
10 = JP2
11 = JPX
12 = JB2
13 = SWC
14 = IFF
15 = WBMP
16 = XBM

Since pip is an executable and which returns path of executables or filenames in environment. It is correct. Pip module is installed in site-packages but the executable is installed in bin.

From Oracle 11gR2, the LISTAGG clause should do the trick:

SELECT question_id,
       LISTAGG(element_id, ',') WITHIN GROUP (ORDER BY element_id)
FROM YOUR_TABLE
GROUP BY question_id;

Beware if the resulting string is too big (more than 4000 chars for a VARCHAR2, for instance): from version 12cR2, we can use ON OVERFLOW TRUNCATE/ERROR to deal with this issue.

You should use bootstarp's variables to control your font-weight if you want a more customized value and/or you're following a scheme that needs to be repeated ; Variables are used throughout the entire project as a way to centralize and share commonly used values like colors, spacing, or font stacks;

you can find all the documentation at http://getbootstrap.com/css.

Another way is to set the version number in appDelegate didFinishLaunchingWithOptions:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
     NSString * ver = [self myVersion];
     NSLog(@"version: %@",ver);

     NSUserDefaults* userDefaults = [NSUserDefaults standardUserDefaults];
     [userDefaults setObject:ver forKey:@"version"];
     return YES;
}

- (NSString *) myVersion {
    NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"];
    NSString *build = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleVersion"];
    return [NSString stringWithFormat:@"%@ build %@", version, build];
}

try this

@media handheld{
    #title_message { display: none; }
}

To set align text in dataGridCell you have two ways:

Set the align for a specific cell or set for each cell of row.

For one column go to Columns->DataGridViewCellStyle

or

For each column go to RowDefaultCellStyle

The control panel is the same as the follow:

It seems daft, but I think when you use the same bind variable twice you have to set it twice:

cmd.Parameters.Add("VarA", "24");
cmd.Parameters.Add("VarB", "test");
cmd.Parameters.Add("VarB", "test");
cmd.Parameters.Add("VarC", "1234");
cmd.Parameters.Add("VarC", "1234");

Certainly that's true with Native Dynamic SQL in PL/SQL:

SQL> begin
  2     execute immediate 'select * from emp where ename=:name and ename=:name'
  3     using 'KING';
  4  end;
  5  /
begin
*
ERROR at line 1:
ORA-01008: not all variables bound


SQL> begin
  2     execute immediate 'select * from emp where ename=:name and ename=:name' 
  3     using 'KING', 'KING';
  4  end;
  5  /

PL/SQL procedure successfully completed.

Yet another solution.

Add ErrorControllers or static page to with 404 error information.

Modify your web.config (in case of controller).

<system.web>
    <customErrors mode="On" >
       <error statusCode="404" redirect="~/Errors/Error404" />
    </customErrors>
</system.web>

Or in case of static page

<system.web>
    <customErrors mode="On" >
        <error statusCode="404" redirect="~/Static404.html" />
    </customErrors>
</system.web>

This will handle both missed routes and missed actions.

You can also do this progamatically, rather than through xml, but it's a bit more "hackish". But give a man no options and you leave him no choice :p.. Here's the code:

TableLayout table = new TableLayout(this);
TableRow tr = new TableRow(this);
tr.setBackgroundColor(Color.BLACK);
tr.setPadding(0, 0, 0, 2); //Border between rows

TableRow.LayoutParams llp = new TableRow.LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
llp.setMargins(0, 0, 2, 0);//2px right-margin

//New Cell
LinearLayout cell = new LinearLayout(this);
cell.setBackgroundColor(Color.WHITE);
cell.setLayoutParams(llp);//2px border on the right for the cell


TextView tv = new TextView(this);
tv.setText("Some Text");
tv.setPadding(0, 0, 4, 3);

cell.addView(tv);
tr.addView(cell);
//add as many cells you want to a row, using the same approach

table.addView(tr);

Günters answer is great, I just want to point out another way without using Observables.

Here we though have to remember that these objects are passed by reference, so if you want to do some work on the object in the child and not affect the parent object, I would suggest using Günther's solution. But if it doesn't matter, or actually is desired behavior, I would suggest the following.

@Injectable()
export class SharedService {

    sharedNode = {
      // properties
    };
}

In your parent you can assign the value:

this.sharedService.sharedNode = this.node;

And in your children (AND parent), inject the shared Service in your constructor. Remember to provide the service at module level providers array if you want a singleton service all over the components in that module. Alternatively, just add the service in the providers array in the parent only, then the parent and child will share the same instance of service.

node: Node;

ngOnInit() {
    this.node = this.sharedService.sharedNode;    
}

And as newman kindly pointed, you can also have this.sharedService.sharedNode in the html template or a getter:

get sharedNode(){
  return this.sharedService.sharedNode;
}

This is working i Angular 8 without setTimeout:

import {AfterContentChecked, Directive, ElementRef} from '@angular/core';

@Directive({
  selector: 'input[inputAutoFocus]'
})
export class InputFocusDirective implements AfterContentChecked {
  constructor(private element: ElementRef<HTMLInputElement>) {}

  ngAfterContentChecked(): void {
    this.element.nativeElement.focus();
  }
}

Explanation: Ok so this works because of: Change detection. It's the same reason that setTimout works, but when running a setTimeout in Angular it will bypass Zone.js and run all checks again, and it works because when the setTimeout is complete all changes are completed. With the correct lifecycle hook (AfterContentChecked) the same result can be be reached, but with the advantage that the extra cycle won't be run. The function will fire when all changes are checked and passed, and runs after the hooks AfterContentInit and DoCheck. If i'm wrong here please correct me.

More one lifecycles and change detection on https://angular.io/guide/lifecycle-hooks

UPDATE: I found an even better way to do this if one is using Angular Material CDK, the a11y-package. First import A11yModule in the the module declaring the component you have the input-field in. Then use cdkTrapFocus and cdkTrapFocusAutoCapture directives and use like this in html and set tabIndex on the input:

<div class="dropdown" cdkTrapFocus cdkTrapFocusAutoCapture>
    <input type="text tabIndex="0">
</div>

We had some issues with our dropdowns regarding positioning and responsiveness and started using the OverlayModule from the cdk instead, and this method using A11yModule works flawlessly.

Use the TRUNCATE TABLE command.

Allowing the execution flow to leave main by returning a value or allowing execution to reach the end of the function is the way a program should terminate except under unrecoverable circumstances. Returning a value is optional in C++, but I typically prefer to return EXIT_SUCCESS found in cstdlib (a platform-specific value that indicates the program executed successfully).

#include <cstdlib>

int main(int argc, char *argv[]) {
  ...
  return EXIT_SUCCESS;
}

If, however, your program reaches an unrecoverable state, it should throw an exception. It's important to realise the implications of doing so, however. There are no widely-accepted best practices for deciding what should or should not be an exception, but there are some general rules you need to be aware of.

For example, throwing an exception from a destructor is nearly always a terrible idea because the object being destroyed might have been destroyed because an exception had already been thrown. If a second exception is thrown, terminate is called and your program will halt without any further clean-up having been performed. You can use uncaught_exception to determine if it's safe, but it's generally better practice to never allow exceptions to leave a destructor.

While it's generally always possible for functions you call but didn't write to throw exceptions (for example, new will throw std::bad_alloc if it can't allocate enough memory), it's often difficult for beginner programmers to keep track of or even know about all of the special rules surrounding exceptions in C++. For this reason, I recommend only using them in situations where there's no sensible way for your program to continue execution.

#include <stdexcept>
#include <cstdlib>
#include <iostream>

int foo(int i) {
  if (i != 5) {
    throw std::runtime_error("foo: i is not 5!");
  }
  return i * 2;
}

int main(int argc, char *argv[]) {
  try {
    foo(3);
  }
  catch (const std::exception &e) {
    std::cout << e.what() << std::endl;
    return EXIT_FAILURE;
  }
  return EXIT_SUCCESS;
}

exit is a hold-over from C and may result in objects with automatic storage to not be cleaned up properly. abort and terminate effectively causes the program to commit suicide and definitely won't clean up resources.

Whatever you do, don't use exceptions, exit, or abort/terminate as a crutch to get around writing a properly structured program. Save them for exceptional situations.

$res_arr_values = array();
while ($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
    $res_arr_values[] = $row;
}


array_push == $res_arr_values[] = $row;

example 

<?php
$stack = array("orange", "banana");
array_push($stack, "apple", "raspberry");
print_r($stack);

Array
(
    [0] => orange
    [1] => banana
    [2] => apple
    [3] => raspberry
)
?>

may be you can write like this:

#graphic { 
 background-image: url(image.jpg); 
 background-position: 0 -50px; 
 width: 200px; 
 height: 100px;
}

Just do: document.getElementById('idselect').options.selectedIndex

Then you i'll get select index value, starting in 0.

For me i wanted to implement a 2-way handshake, meaning:
- the parent window will load faster then the iframe
- the iframe should talk to the parent window as soon as its ready
- the parent is ready to receive the iframe message and replay

this code is used to set white label in the iframe using [CSS custom property]
code:
iframe

$(function() {
    window.onload = function() {
        // create listener
        function receiveMessage(e) {
            document.documentElement.style.setProperty('--header_bg', e.data.wl.header_bg);
            document.documentElement.style.setProperty('--header_text', e.data.wl.header_text);
            document.documentElement.style.setProperty('--button_bg', e.data.wl.button_bg);
            //alert(e.data.data.header_bg);
        }
        window.addEventListener('message', receiveMessage);
        // call parent
        parent.postMessage("GetWhiteLabel","*");
    }
});

parent

$(function() {
    // create listener
    var eventMethod = window.addEventListener ? "addEventListener" : "attachEvent";
    var eventer = window[eventMethod];
    var messageEvent = eventMethod == "attachEvent" ? "onmessage" : "message";
    eventer(messageEvent, function (e) {
        // replay to child (iframe) 
        document.getElementById('wrapper-iframe').contentWindow.postMessage(
            {
                event_id: 'white_label_message',
                wl: {
                    header_bg: $('#Header').css('background-color'),
                    header_text: $('#Header .HoverMenu a').css('color'),
                    button_bg: $('#Header .HoverMenu a').css('background-color')
                }
            },
            '*'
        );
    }, false);
});

naturally you can limit the origins and the text, this is easy-to-work-with code
i found this examlpe to be helpful:
[Cross-Domain Messaging With postMessage]

Like this?

var item = "Hello World";
var array = [];
if (array.indexOf(item) === -1) array.push(item);

With object

var item = {name: "tom", text: "tasty"}
var array = [{}]
if (!array.find(o => o.name === 'tom' && o.text === 'tasty'))
    array.push(item)

For future reference Python is strongly typed. Unlike other dynamic languages, it will not automagically cast objects from one type or the other (say from str to int) so you must do this yourself. You'll like that in the long-run, trust me!

You need geopy

pip install geopy

and then:

from geopy.geocoders import Nominatim
geolocator = Nominatim()
location = geolocator.reverse("48.8588443, 2.2943506")

print(location.address)

to get more information:

print (location.raw)

{'place_id': '24066644', 'osm_id': '2387784956', 'lat': '41.442115', 'lon': '-8.2939909', 'boundingbox': ['41.442015', '41.442215', '-8.2940909', '-8.2938909'], 'address': {'country': 'Portugal', 'suburb': 'Oliveira do Castelo', 'house_number': '99', 'city_district': 'Oliveira do Castelo', 'country_code': 'pt', 'city': 'Oliveira, São Paio e São Sebastião', 'state': 'Norte', 'state_district': 'Ave', 'pedestrian': 'Rua Doutor Avelino Germano', 'postcode': '4800-443', 'county': 'Guimarães'}, 'osm_type': 'node', 'display_name': '99, Rua Doutor Avelino Germano, Oliveira do Castelo, Oliveira, São Paio e São Sebastião, Guimarães, Braga, Ave, Norte, 4800-443, Portugal', 'licence': 'Data © OpenStreetMap contributors, ODbL 1.0. http://www.openstreetmap.org/copyright'}

The ultimate JavaScript workaround to this annoying issue -

Simply wrap the jQuery command in a setTimeout. The interval can be extremely small, I use 10 milliseconds and it seems to be working great. The delay is so small that it is virtually undetectable to the end users.

setTimeout(function(){
  $("#radio-element").attr('checked','checked');
},10);

This will also work with

• $("#radio-element").trigger('click');
• $("#radio-element").attr('checked',true);
• $("#radio-element").attr('checked',ANYTHING_THAT_IS_NOT_FALSE);

Hacky...hacky...hacky...hacky... Yes I know... hence this is a workaround....

This question is was originally tagged as [C] and [C++] at the same time. The original code is indeed invalid in both C and C++, but for completely different unrelated reasons.

• In C++ this code is invalid because the case ANOTHER_VAL: label jumps into the scope of variable newVal bypassing its initialization. Jumps that bypass initialization of automatic objects are illegal in C++. This side of the issue is correctly addressed by most answers.

• However, in C language bypassing variable initialization is not an error. Jumping into the scope of a variable over its initialization is legal in C. It simply means that the variable is left uninitialized. The original code does not compile in C for a completely different reason. Label case VAL: in the original code is attached to the declaration of variable newVal. In C language declarations are not statements. They cannot be labeled. And this is what causes the error when this code is interpreted as C code.

  switch (val)  
  {  
  case VAL:             /* <- C error is here */
    int newVal = 42;  
    break;
  case ANOTHER_VAL:     /* <- C++ error is here */
    ...
    break;
  }
  

Adding an extra {} block fixes both C++ and C problems, even though these problems happen to be very different. On the C++ side it restricts the scope of newVal, making sure that case ANOTHER_VAL: no longer jumps into that scope, which eliminates the C++ issue. On the C side that extra {} introduces a compound statement, thus making the case VAL: label to apply to a statement, which eliminates the C issue.

• In C case the problem can be easily solved without the {}. Just add an empty statement after the case VAL: label and the code will become valid

  switch (val)  
  {  
  case VAL:;            /* Now it works in C! */
    int newVal = 42;  
    break;
  case ANOTHER_VAL:  
    ...
    break;
  }
  

  Note that even though it is now valid from C point of view, it remains invalid from C++ point of view.

• Symmetrically, in C++ case the the problem can be easily solved without the {}. Just remove the initializer from variable declaration and the code will become valid

  switch (val)  
  {  
  case VAL: 
    int newVal;
    newVal = 42;  
    break;
  case ANOTHER_VAL:     /* Now it works in C++! */
    ...
    break;
  }
  

  Note that even though it is now valid from C++ point of view, it remains invalid from C point of view.

css

div { 
    width: 200px;
    height: 200px;
    display: block;
    position: relative;
}

div::after {
    content: "";
    background: url(image.jpg); 
    opacity: 0.5;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    position: absolute;
    z-index: -1;
}

html

<div> put your div content</div>

git read-tree -um @ $commit_to_revert_to

will do it. It's "git checkout" but without updating HEAD.

You can achieve the same effect with

git checkout $commit_to_revert_to
git reset --soft @{1}

if you prefer stringing convenience commands together.

These leave you with your worktree and index in the desired state, you can just git commit to finish.

There should be three pages here:

1. Initial login page with a form that asks for your username, but not your password.
2. You didn't mention this one, but I'd check whether the client computer is recognized, and if not, then challenge the user with either a CAPTCHA or else a security question. Otherwise the phishing site can simply use the tendered username to query the real site for the security image, which defeats the purpose of having a security image. (A security question is probably better here since with a CAPTCHA the attacker could have humans sitting there answering the CAPTCHAs to get at the security images. Depends how paranoid you want to be.)
3. A page after that that displays the security image and asks for the password.

I don't see this short, linear flow being sufficiently complex to warrant using Spring Web Flow.

I would just use straight Spring Web MVC for steps 1 and 2. I wouldn't use Spring Security for the initial login form, because Spring Security's login form expects a password and a login processing URL. Similarly, Spring Security doesn't provide special support for CAPTCHAs or security questions, so you can just use Spring Web MVC once again.

You can handle step 3 using Spring Security, since now you have a username and a password. The form login page should display the security image, and it should include the user-provided username as a hidden form field to make Spring Security happy when the user submits the login form. The only way to get to step 3 is to have a successful POST submission on step 1 (and 2 if applicable).

It's the other way round:

Vehicle[] car = new Vehicle[N];

This makes more sense, as the number of elements in the array isn't part of the type of car, but it is part of the initialization of the array whose reference you're initially assigning to car. You can then reassign it in another statement:

car = new Vehicle[10]; // Creates a new array

(Note that I've changed the type name to match Java naming conventions.)

For further information about arrays, see section 10 of the Java Language Specification.

Paint.NET will create and edit PNGs with gusto. It's an excellent program in many respects. It's free as in beer and speech.

This seems simple enough and works both in python 2 and 3

try: subprocess.check_output('which executable',shell=True)
except: sys.exit('ERROR: executable not found')

Apart from cool solutions above I'd mention also about supervisord and monit tools which allow to start process, monitor its presence and start it if it died. With 'monit' you can also run some active checks like check if process responds for http request

You will find multiple different methods that people use and they each have there own place.

<?php if($first_condition): ?>
  /*$first_condition is true*/
<?php elseif ($second_condition): ?>
  /*$first_condition is false and $second_condition is true*/
<?php else: ?>
  /*$first_condition and $second_condition are false*/
<?php endif; ?>

If in your php.ini attribute short_open_tag = true (this is normally found on line 141 of the default php.ini file) you can replace your php open tag from <?php to <?. This is not advised as most live server environments have this turned off (including many CMS's like Drupal, WordPress and Joomla). I have already tested short hand open tags in Drupal and confirmed that it will break your site, so stick with <?php. short_open_tag is not on by default in all server configurations and must not be assumed as such when developing for unknown server configurations. Many hosting companies have short_open_tag turned off.

A quick search of short_open_tag in stackExchange shows 830 results. https://stackoverflow.com/search?q=short_open_tag That's a lot of people having problems with something they should just not play with.

with some server environments and applications, short hand php open tags will still crash your code even with short_open_tag set to true.

short_open_tag will be removed in PHP6 so don't use short hand tags.

all future PHP versions will be dropping short_open_tag

• http://www.askapache.com/php/shorthand-short_open_tag.html
• https://softwareengineering.stackexchange.com/questions/151661/is-it-bad-practice-to-use-tag-in-php

"It's been recommended for several years that you not use the short tag "short cut" and instead to use the full tag combination. With the wide spread use of XML and use of these tags by other languages, the server can become easily confused and end up parsing the wrong code in the wrong context. But because this short cut has been a feature for such a long time, it's currently still supported for backwards compatibility, but we recommend you don't use them." – Jelmer Sep 25 '12 at 9:00 php: "short_open_tag = On" not working

and

Normally you write PHP like so: . However if allow_short_tags directive is enabled you're able to use: . Also sort tags provides extra syntax: which is equal to .

Short tags might seem cool but they're not. They causes only more problems. Oh... and IIRC they'll be removed from PHP6. Crozin answered Aug 24 '10 at 22:12 php short_open_tag problem

and

To answer the why part, I'd quote Zend PHP 5 certification guide: "Short tags were, for a time, the standard in the PHP world; however, they do have the major drawback of conflicting with XML headers and, therefore, have somewhat fallen by the wayside." – Fluffy Apr 13 '11 at 14:40 Are PHP short tags acceptable to use?

You may also see people use the following example:

<?php if($first_condition){ ?>
  /*$first_condition is true*/
<?php }else if ($second_condition){ ?>
  /*$first_condition is false and $second_condition is true*/
<?php }else{ ?>
  /*$first_condition and $second_condition are false*/
<?php } ?>

This will work but it is highly frowned upon as it's not considered as legible and is not what you would use this format for. If you had a PHP file where you had a block of PHP code that didn't have embedded tags inside, then you would use the bracket format.

The following example shows when to use the bracket method

<?php
if($first_condition){
   /*$first_condition is true*/
}else if ($second_condition){
   /*$first_condition is false and $second_condition is true*/
}else{
   /*$first_condition and $second_condition are false*/
}
?>

If you're doing this code for yourself you can do what you like, but if your working with a team at a job it is advised to use the correct format for the correct circumstance. If you use brackets in embedded html/php scripts that is a good way to get fired, as no one will want to clean up your code after you. IT bosses will care about code legibility and college professors grade on legibility.

UPDATE

based on comments from duskwuff its still unclear if shorthand is discouraged (by the php standards) or not. I'll update this answer as I get more information. But based on many documents found on the web about shorthand being bad for portability. I would still personally not use it as it gives no advantage and you must rely on a setting being on that is not on for every web host.

use the nextSibling and previousSibling properties:

<div id="foo1"></div>
<div id="foo2"></div>
<div id="foo3"></div>

document.getElementById('foo2').nextSibling; // #foo3
document.getElementById('foo2').previousSibling; // #foo1

However in some browsers (I forget which) you also need to check for whitespace and comment nodes:

var div = document.getElementById('foo2');
var nextSibling = div.nextSibling;
while(nextSibling && nextSibling.nodeType != 1) {
    nextSibling = nextSibling.nextSibling
}

Libraries like jQuery handle all these cross-browser checks for you out of the box.

You can also affect differente DOM elements using :target pseudo class. If an element is the destination of an anchor target it will get the :target pseudo element.

<style>
p { color:black; }
p:target { color:red; }
</style>

<a href="#elem">Click me</a>
<p id="elem">And I will change</p>

Here is a fiddle : https://jsfiddle.net/k86b81jv/

Step 1: Go to directory where the classes are kept using command prompt (or Linux shell prompt)
Like for Project.
C:/workspace/MyProj/bin/classess/com/test/*.class

Go directory bin using command:

cd C:/workspace/MyProj/bin

Step 2: Use below command to generate jar file.

jar cvf helloworld.jar com\test\hello\Hello.class  com\test\orld\HelloWorld.class

Using the above command the classes will be placed in a jar in a directory structure.

I also had this issue. My solution is remove file Gemfile.lock, and install gems again: bundle install

def exit(self):
    self.frame.destroy()
exit_btn=Button(self.frame,text='Exit',command=self.exit,activebackground='grey',activeforeground='#AB78F1',bg='#58F0AB',highlightcolor='red',padx='10px',pady='3px')
exit_btn.place(relx=0.45,rely=0.35)

This worked for me to destroy my Tkinter frame on clicking the exit button.

The var keyword in C#'s main benefit is to enhance readability, not functionality. Technically, the var keywords allows for some other unlocks (e.g. use of anonymous objects), but that seems to be outside the scope of this question. Every variable declared with the var keyword has a type. For instance, you'll find that the following code outputs "String".

var myString = "";
Console.Write(myString.GetType().Name);

Furthermore, the code above is equivalent to:

String myString = "";
Console.Write(myString.GetType().Name);

The var keyword is simply C#'s way of saying "I can figure out the type for myString from the context, so don't worry about specifying the type."

var myVariable = (MyType)null or MyType myVariable = null should work because you are giving the C# compiler context to figure out what type myVariable should will be.

For more information:

• How to initialize var?
• http://msdn.microsoft.com/en-us/library/bb397696.aspx

You can solve your problem most concisely with a predicate written using anonymous method syntax:

MyClass found = list.Find(item => item.GetID() == ID);

This is what I had to do to get started with a Less compiler to avoid issues as mentionned in the OP:

1. Install node.js
2. Install NPM with Terminal: sudo npm install npm -g
3. Install a Less compiler with Terminal: sudo npm install -g less (the sudo makes all the difference)
4. If you're using PHPstorm: Go to "Preferences… > Plugins" and install NodeJS-plugin (might need to "browse repositories" to find it) and restart PHPstorm (as prompted)
5. After that go to Plugins once again: Install Less compiler (might need to "browse repositories" to find it) and restart PHPstorm (as prompted)
6. Once you have a project set up, go to "Settings > Tools > Filewatchers" and add "Less". The path (of the "Program") should read something like this: /usr/local/bin/lessc
7. Make sure Track only root files is checked in the settings of 6.

I would suggest taking a look JetBrains AppCode IDE. It has a Reformat Code command. I have come from a C# background and used Visual Studio with Jetbrains Resharper plugin, so learning AppCode has been a pleasure because many of the features in Resharper also exist in AppCode!

Theres too many features to list here but could well be worth checking out

• http://www.jetbrains.com/objc/features/index.html
• http://www.jetbrains.com/objc/

How about statusid = statusid. Null is never equal to null.

When you start the app from the GUI, adb logcat might show you the corresponding action/category/component:

$ adb logcat
[...]
I/ActivityManager( 1607): START {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10200000 cmp=com.android.browser/.BrowserActivity} from pid 1792
[...]

How about making an alias ?

alias gc="git rev-list --all --count"      #Or whatever name you wish

When your program is waiting for I/O (ie. a disk read/write or network read/write etc), the CPU is free to do other tasks even if your program is stopped. The speed of your program will mostly depend on how fast that IO can happen, and if you want to speed it up you will need to speed up the I/O.

If your program is running lots of program instructions and not waiting for I/O, then it is said to be CPU bound. Speeding up the CPU will make the program run faster.

In either case, the key to speeding up the program might not be to speed up the hardware, but to optimize the program to reduce the amount of IO or CPU it needs, or to have it do I/O while it also does CPU intensive stuff.

1. Declare object of EditText on top of class:

    EditText myEditText;
   

2. Find EditText in onCreate Function and setOnFocusChangeListener of EditText:

   myEditText = findViewById(R.id.yourEditTextNameInxml); 
   
   myEditText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
               @Override
               public void onFocusChange(View view, boolean hasFocus) {
                   if (!hasFocus) {
                        Toast.makeText(this, "Focus Lose", Toast.LENGTH_SHORT).show();
                   }else{
                       Toast.makeText(this, "Get Focus", Toast.LENGTH_SHORT).show();
                   }
   
               }
           });
   

It works fine.

To follow up the answer above, for a .war artifact, I found I had to apply the equivalent configuration to maven-war-plugin, rather than maven-jar-plugin:

<plugin>
    <artifactId>maven-war-plugin</artifactId>
    <version>2.1</version>
    <configuration>
        <archive>                   
            <manifest>
                <addDefaultImplementationEntries>true</addDefaultImplementationEntries>
                <addDefaultSpecificationEntries>true</addDefaultSpecificationEntries>
            </manifest>
        </archive>
    </configuration>
</plugin>

This added the version information to MANIFEST.MF in the project's .jar (included in WEB-INF/lib of the .war)

I think it is better to explain at the beginning.

Suppose you run the command docker run hello-world. What happens?

It calls Docker CLI which is responsible to take Docker commands and transform to call Docker server commands. As soon as Docker server gets a command to run an image, it checks weather the images cache holds an image with such a name.

Suppose hello-world do not exists. Docker server goes to Docker Hub (Docker Hub is just a free repository of images) and asks, hey Hub, do you have an image called hello-world? Hub responses - yes, I do. Then give it to me, please. And the download process starts. As soon as the Docker image is downloaded, the Docker server puts it in the image cache.

So before we explain what Docker images and Docker containers are, let's start with an introduction about the operation system on your computer and how it runs software.

When you run, for example, Chrome on your computer, it calls the operating system, the operating system itself calls the kernel and asks, hey I want to run this program. The kernel manages to run files from your hard disk.

Now imagine that you have two programs, Chrome and Node.js. Chrome requires Python version 2 to run and Node.js requires Python version 3 to run. If you only have installed Python v2 on your computer, only Chrome will be run.

To make both cases work, somehow you need to use an operating system feature known as namespacing. A namespace is a feature which gives you the opportunity to isolate processes, hard drive, network, users, hostnames and so on.

So, when we talk about an image we actually talk about a file system snapshot. An image is a physical file which contains directions and metadata to build a specific container. The container itself is an instance of an image; it isolates the hard drive using namespacing which is available only for this container. So a container is a process or set of processes which groups different resources assigned to it.

There's no benefit to using properties with primitive types. @property is used with heap allocated NSObjects like NSString*, NSNumber*, UIButton*, and etc, because memory managed accessors are created for free. When you create a BOOL, the value is always allocated on the stack and does not require any special accessors to prevent memory leakage. isWorking is simply the popular way of expressing the state of a boolean value.

In another OO language you would make a variable private bool working; and two accessors: SetWorking for the setter and IsWorking for the accessor.

You can configure individual ObjectMappers like this:

ObjectMapper mapper  = new ObjectMapper();
mapper.setVisibility(mapper.getSerializationConfig().getDefaultVisibilityChecker()
                .withFieldVisibility(JsonAutoDetect.Visibility.ANY)
                .withGetterVisibility(JsonAutoDetect.Visibility.NONE)
                .withSetterVisibility(JsonAutoDetect.Visibility.NONE)
                .withCreatorVisibility(JsonAutoDetect.Visibility.NONE));

If you want it set globally, I usually access a configured mapper through a wrapper class.

URL url = new URL(yourUrl, "/api/v1/status.xml");

According to the javadocs this constructor just appends whatever resource to the end of your domain, so you would want to create 2 urls:

URL domain = new URL("http://example.com");
URL url = new URL(domain + "/files/resource.xml");

Sources: http://docs.oracle.com/javase/6/docs/api/java/net/URL.html

I had the same issue with a maven project in Eclipse IDE. I was able to resolve it by replacing the .classpath file with the correct format. After replacing close and open the project.

Sample .classpath file

<?xml version="1.0" encoding="UTF-8"?>
<classpath>
    <classpathentry kind="src" output="target/classes" path="src/main/java">
        <attributes>
            <attribute name="optional" value="true"/>
            <attribute name="maven.pomderived" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
        <attributes>
            <attribute name="maven.pomderived" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry excluding="**" kind="src" output="target/classes" path="src/main/webapp">
        <attributes>
            <attribute name="maven.pomderived" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry kind="src" output="target/test-classes" path="src/test/java">
        <attributes>
            <attribute name="optional" value="true"/>
            <attribute name="maven.pomderived" value="true"/>
            <attribute name="test" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
        <attributes>
            <attribute name="maven.pomderived" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
        <attributes>
            <attribute name="maven.pomderived" value="true"/>
        </attributes>
    </classpathentry>
    <classpathentry kind="output" path="target/classes"/>
</classpath>

To my knowledge the file has to be right in the folder where the 'this' class resides, i.e. not in WEB-INF/classes but nested even deeper (unless you write in a default package):

net/domain/pkg1/MyClass.java  
net/domain/pkg1/abc.txt

Putting the file in to your java sources should work, compiler copies that file together with class files.

Well I know this might be a big change or even not suitable for your project, but did you consider not performing the push until you already have the data? That way you only need to draw the view once and the user experience will also be better - the push will move in already loaded.

The way you do this is in the UITableView didSelectRowAtIndexPath you asynchronously ask for the data. Once you receive the response, you manually perform the segue and pass the data to your viewController in prepareForSegue. Meanwhile you may want to show some activity indicator, for simple loading indicator check https://github.com/jdg/MBProgressHUD

here is the commend which is tested Sqlcmd -E -S "server name" -d "DB name" -i "SQL file path"

-E stand for windows trusted

Maybe this might work:

Sh.Range("A1", Sh.Range("A" & Rows.Count).End(xlUp))

We usually use One Main Window for the application and other windows can be used in situations like when you need popups because instead of using popup controls in XAML which are not visible we can use a Window that is visible at design time so that'll be easy to work with

on the other hand we use many pages to navigate from one screen to another like User management screen to Order Screen etc In the main Window we can use Frame control for navigation like below XAML

    <Frame Name="mainWinFrame" NavigationUIVisibility="Hidden"  ButtonBase.Click="mainWinFrame_Click">
    </Frame>

C#

     private void mainWinFrame_Click(object sender, RoutedEventArgs e)
    {
        try
        {
            if (e.OriginalSource is Button)
            {
                Button btn = (Button)e.OriginalSource;

                if ((btn.CommandParameter != null) && (btn.CommandParameter.Equals("Order")))
                {

                    mainWinFrame.Navigate(OrderPage);
                }
            }
        }
        catch (Exception ex)
        {
            MessageBox.Show(ex.Message, "Error");
        }
    }

That's one way of doing it We can also use a Tab Control instead of Fram and Add pages to it using a Dictionary while adding new page check if the control already exists then only navigate otherwise add and navigate. I hope that'll help someone

Yes, it will block the other method because synchronized method applies to the WHOLE class object as pointed .... but anyway it will block the other thread execution ONLY while performing the sum in whatever method addA or addB it enters, because when it finish ... the one thread will FREE the object and the other thread will access the other method and so on perfectly working.

I mean the "synchronized" is made precisely for blocking the other thread from accessing another while in a specific code execution. SO FINALLY THIS CODE WILL WORK FINE.

As a final note, if there is an 'a' and 'b' variables, not just an unique variable 'a' or whatever other name, there is no need to synchronize this methods cause it is perfectly safe accesing other var (Other memory location).

class X {

private int a;
private int b;

public void addA(){
    a++;
}

public void addB(){
    b++;
}}

Will work as well

String[] errorSoon = new String[n];

With n being how many strings it needs to hold.

You can do that in the declaration, or do it without the String[] later on, so long as it's before you try use them.

post_max_size:

• Sets max size of post data allowed. This setting also affects file upload
• To upload large files, this value must be larger than upload_max_filesize
• Generally speaking, memory_limit should be larger than post_max_size.
• PHP Default: 8M

upload_max_filesize:

• The maximum size of an uploaded file
• PHP Default: 2M

memory_limit > post_max_size > upload_max_filesize

PHP Default: 128M > 8M > 2M

By default, post_max_size should be 4 times greater than upload_max_filesize.
In turn memory_limit should be 16 times greater than post_max_size

Javascript now has a specific built in object called Map, you can call as follows :

   var myMap = new Map()

You can update it with .set :

   myMap.set("key0","value")

This has the advantage of methods you can use to handle look ups, like the boolean .has

  myMap.has("key1"); // evaluates to false 

You can use this before calling .get on your Map object to handle looking up non-existent keys

If you're using an OS (like OS X) that doesn't have the dos2unix command but does have a Python interpreter (version 2.5+), this command is equivalent to the dos2unix command:

python -c "import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))"

This handles both named files on the command line as well as pipes and redirects, just like dos2unix. If you add this line to your ~/.bashrc file (or equivalent profile file for other shells):

alias dos2unix="python -c \"import sys; import fileinput; sys.stdout.writelines(line.replace('\r', '\n') for line in fileinput.input(mode='rU'))\""

... the next time you log in (or run source ~/.bashrc in the current session) you will be able to use the dos2unix name on the command line in the same manner as in the other examples.

I use these git alias and it pretty much does the job automatic:

git config --global alias.move '!git checkout master; git branch -m $1 $2; git status; git push --delete origin $1; git status; git push -u origin $2; git branch -a; exit;'

Usage: git move FROM_BRANCH TO_BRANCH

It works if you have the default names like master, origin etc. You can modify as you wish but it gives you the idea.

public class Main {
    public static void main(String[] args) {

        String number;

        while(true){

            try{
                number = JOptionPane.showInputDialog(null);

                if( Main.isNumber(number) )
                    break;

            }catch(NumberFormatException e){
                System.out.println(e.getMessage());
            }

        }

        System.out.println("Your number is " + number);

    }

    public static boolean isNumber(Object o){
        boolean isNumber = true;

        for( byte b : o.toString().getBytes() ){
            char c = (char)b;
            if(!Character.isDigit(c))
                isNumber = false;
        }

        return isNumber;
    }

}

import numpy as np

mylist = [3, 4, 5, np.nan]
l = [x for x in mylist if ~np.isnan(x)]

This should remove all NaN. Of course, I assume that it is not a string here but actual NaN (np.nan).

I got around this by temporarily rewriting my function to something like this:

IF OBJECT_ID ('[dbo].[fx_dosomething]', 'TF') IS NOT NULL
  drop function [dbo].[fx_dosomething];
GO

create FUNCTION dbo.fx_dosomething ( @x numeric )
returns @t table (debug varchar(100), x2 numeric)
as
begin
 declare @debug varchar(100)
 set @debug = 'printme';

 declare @x2 numeric
 set @x2 = 0.123456;

 insert into @t values (@debug, @x2)
 return 
end
go

select * from fx_dosomething(0.1)

Similar solution but much cleaner to use

Write this function out side of class

fun delay(duration: Long, `do`: () -> Unit) {

    Handler().postDelayed(`do`, duration)

}

Usage:

delay(5000) {
    //Do your work here
}

Looks like PostgreSQL supports a schema object called a rule.

http://www.postgresql.org/docs/current/static/rules-update.html

You could create a rule ON INSERT for a given table, making it do NOTHING if a row exists with the given primary key value, or else making it do an UPDATE instead of the INSERT if a row exists with the given primary key value.

I haven't tried this myself, so I can't speak from experience or offer an example.

Just restating what Tomasz said.

There are many examples of FOO__in=... style filters in the many-to-many and many-to-one tests. Here is syntax for your specific problem:

users_in_1zone = User.objects.filter(zones__id=<id1>)
# same thing but using in
users_in_1zone = User.objects.filter(zones__in=[<id1>])

# filtering on a few zones, by id
users_in_zones = User.objects.filter(zones__in=[<id1>, <id2>, <id3>])
# and by zone object (object gets converted to pk under the covers)
users_in_zones = User.objects.filter(zones__in=[zone1, zone2, zone3])

The double underscore (__) syntax is used all over the place when working with querysets.

You can just share the contact with your bot and, via /getUpdates, you get the "contact" object

Nowadays - using C++11 - you can use enum class for this:

enum class Color { RED, BLUE, WHITE };

AFAII this does exactly what you want.

I think the best and simplest way to extract only the package name in Linux is

aapt dump badging <APK_path> | grep package | sed -r "s/package: name='([a-z0-9.]*)'.*/\1/"

Explanation:

1. AAPT extracts the APK information
2. Grep "package" to keep only the line about the package information
3. Make sed replace the whole line with the package name only using the following regex: package: name='([a-z0-9.]*)'.* and replacing with the first (and only) matching group.

Or try my solution: http://robau.wordpress.com/2011/08/16/unobtrusive-table-column-resize-with-jquery-as-plugin/ :)

You can only break a block scope if you label it. For example:

myBlock: {
  var a = 0;
  break myBlock;
  a = 1; // this is never run
};
a === 0;

You cannot break a block scope from within a function in the scope. This means you can't do stuff like:

foo: { // this doesn't work
  (function() {
    break foo;
  }());
}

You can do something similar though with functions:

function myFunction() {myFunction:{
  // you can now use break myFunction; instead of return;
}}

Swift 3.0.1+ (Some of the other swift 3.0 answers are not up to date)

textField.addTarget(self, action: #selector(ViewController.textFieldDidChange(_:)),
                          for: UIControlEvents.editingChanged)

func textFieldDidChange(_ textField: UITextField) {

}

Instead of the hack you currently use to hide the button, it would be much simpler to set visibility: collapse; in the style attribute. However, I would still recommend using a bit of simple Javascript to submit the form. As far as I understand, support for such things is ubiquitous nowadays.

Update for 2016

A lot of great editors have come out since my original answer. I currently use the following text editors: Sublime Text 3 (Mac/Windows), Visual Studio Code (Mac/Windows) and Atom (Mac/Windows). I also use the following IDEs: Visual Studio 2015 (Windows/Paid & Free Versions) and Jetrbrains WebStorm (Windows/Paid, tried the demo and liked it).

My preference is using Sublime Text 3.

Original Answer

Microsoft Web Matrix and Dreamweaver are great.

Visual Studio and Expression Web are also great but may be overkill for you.

For just plain text editors, Sublime Text 2 is really cool

have you tried using document.getElementbyID('id') where id is the id of the label or is the situation that you dont know which one you are looking for

You can simply add @HostBinding('class') class = 'someClass'; inside your @Component class.

Example:

@Component({
   selector: 'body',
   template: 'app-element'       
})
export class App implements OnInit {

  @HostBinding('class') class = 'someClass';

  constructor() {}      

  ngOnInit() {}
}

you must be in centos or redhat and compile python yourself, it is python‘s bug do this in your python source code dir and do this below

curl -sk https://gist.github.com/msabramo/2727063/raw/59ea097a1f4c6f114c32f7743308a061698b17fd/gistfile1.diff | patch -p1

This code makes numbering style same as headers of li content.

<style>
    h4 {font-size: 18px}
    ol.list-h4 {counter-reset: item; padding-left:27px}
    ol.list-h4 > li {display: block}
    ol.list-h4 > li::before {display: block; position:absolute;  left:16px;  top:auto; content: counter(item)"."; counter-increment: item; font-size: 18px}
    ol.list-h4 > li > h4 {padding-top:3px}
</style>

<ol class="list-h4">
    <li>
        <h4>...</h4>
        <p>...</p> 
    </li>
    <li>...</li>
</ol>

Update July 2012 (git 1.7.12+)

You now can rebase all commits up to root, and select the second commit Y to be squashed with the first X.

git rebase -i --root master

pick sha1 X
squash sha1 Y
pick sha1 Z

git rebase [-i] --root $tip

This command can now be used to rewrite all the history leading from "$tip" down to the root commit.

See commit df5df20c1308f936ea542c86df1e9c6974168472 on GitHub from Chris Webb (arachsys).

Original answer (February 2009)

I believe you will find different recipes for that in the SO question "How do I combine the first two commits of a git repository?"

Charles Bailey provided there the most detailed answer, reminding us that a commit is a full tree (not just diffs from a previous states).
And here the old commit (the "initial commit") and the new commit (result of the squashing) will have no common ancestor.
That mean you can not "commit --amend" the initial commit into new one, and then rebase onto the new initial commit the history of the previous initial commit (lots of conflicts)

(That last sentence is no longer true with git rebase -i --root <aBranch>)

Rather (with A the original "initial commit", and B a subsequent commit needed to be squashed into the initial one):

1. Go back to the last commit that we want to form the initial commit (detach HEAD):

   git checkout <sha1_for_B>
   

2. Reset the branch pointer to the initial commit, but leaving the index and working tree intact:

   git reset --soft <sha1_for_A>
   

3. Amend the initial tree using the tree from 'B':

   git commit --amend
   

4. Temporarily tag this new initial commit (or you could remember the new commit sha1 manually):

   git tag tmp
   

5. Go back to the original branch (assume master for this example):

   git checkout master
   

6. Replay all the commits after B onto the new initial commit:

   git rebase --onto tmp <sha1_for_B>
   

7. Remove the temporary tag:

   git tag -d tmp
   

That way, the "rebase --onto" does not introduce conflicts during the merge, since it rebases history made after the last commit (B) to be squashed into the initial one (which was A) to tmp (representing the squashed new initial commit): trivial fast-forward merges only.

That works for "A-B", but also "A-...-...-...-B" (any number of commits can be squashed into the initial one this way)

That's not how ASP.NET MVC is supposed to be used. You do not redirect from views. You redirect from the corresponding controller action:

public ActionResult SomeAction()
{
    ...
    return RedirectToAction("SomeAction", "SomeController");
}

Now since I see that in your example you are attempting to redirect to the LogOn action, you don't really need to do this redirect manually, but simply decorate the controller action that requires authentication with the [Authorize] attribute:

[Authorize]
public ActionResult SomeProtectedAction()
{
    ...
}

Now when some anonymous user attempts to access this controller action, the Forms Authentication module will automatically intercept the request much before it hits the action and redirect the user to the LogOn action that you have specified in your web.config (loginUrl).

Enter cron using sudo:

sudo crontab -e

Add a command to run upon start up, in this case a script:

@reboot sh /home/user/test.sh

Save:

Press ESC then :x to save and exit, or hit ESC then ZZ (that's shift+zz)

Test Test Test:

1. Run your test script without cron to make sure it actually works.

2. Make sure you saved your command in cron, use sudo crontab -e

3. Reboot the server to confirm it all works sudo @reboot

Ohh what a mess! My advise: When its comes to messy poms or project packaging, Eclipse is really bad at showing the real problem. It will tell you some dependencies are missing, when in fact for pom is malformed or some other problem are present in your pom.

Leave Eclipse alone are run a maven install. You will get to the real problem really quick!

This Step Is Proper Working.

Pod Install

[ 1 ] Open terminal and type:

sudo gem install cocoapods

Gem will get installed in Ruby inside the System library. Or try on 10.11 Mac OSX El Capitan, type:

sudo gem install -n /usr/local/bin cocoapods

If there is an error "activesupport requires Ruby version >= 2.xx", then install the latest active support first by typing in the terminal.

sudo gem install activesupport -v 4.2.6

[ 2 ] After installation, there will be a lot of messages, read them and if no error found, it means cocoa pod installation is done. Next, you need to set up the cocoa pod master repo. Type in terminal:

pod setup

And wait it will download the master repo. The size is very big (370.0MB in Dec 2016). So it can be a while. You can track the download by opening Activity and go to the Network tab and search for git-remote-https. Alternatively, you can try adding verbose to the command like so:

pod setup --verbose

[ 3 ] Once done it will output "Setup Complete", and you can create your XCode project and save it.

[ 4 ] Then in a terminal cd to "your XCode project root directory" (where your .xcodeproj file resides) and type:

pod init

[ 5 ] Then open your project's podfile by typing in terminal:

open -a Xcode Podfile

[ 6 ] Your Podfile will get open in text mode. Initially, there will be some default commands in there. Here is where you add your project's dependencies. For example, in the podfile, type

/****** These are Third party pods names ******/
pod 'OpenSSL-Universal'
pod 'IQKeyboardManager'
pod 'FTPopOverMenu'
pod 'TYMActivityIndicatorView'
pod 'SCSkypeActivityIndicatorView'
pod 'Google/SignIn'
pod 'UPStackMenu'

(this is For example of adding library to your project).

When you are done editing the podfile, save it and close XCode.

[ 7 ] Then install pods into your project by typing in terminal:

pod install

Depending on how many libraries you added to your podfile for your project, the time to complete this varies. Once completed, there will be a message that says

"Pod installation complete! There are X dependencies from the Podfile and X total pods installed."

In case someone else stumbles here... you can set padding as well, for instance:

Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);

int padding = 200 // padding left and right

toolbar.setPadding(padding, toolbar.getPaddingTop(), padding, toolbar.getPaddingBottom());

Or contentInset:

toolbar.setContentInsetsAbsolute(toolbar.getContentInsetLeft(), 200);

I download Java 8 SDK

1. unistall java sdk previuse
2. close android studio
3. install java 8
4. run-> cmd-> flutter doctor --install -licenses and after

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[v] Flutter (Channel stable, v1.12.13+hotfix.9, on Microsoft Windows [Version 10.0.19041.388], locale en-US)
[v] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[v] Android Studio (version 4.0)
[v] VS Code (version 1.47.3)
[!] Connected device
    ! No devices available

! Doctor found issues in 1 category
display  and finish

Just use a bytearray (Python 2.6 and later) which represents a mutable sequence of bytes

>>> key = bytearray([0x13, 0x00, 0x00, 0x00, 0x08, 0x00])
>>> key
bytearray(b'\x13\x00\x00\x00\x08\x00')

Indexing get and sets the individual bytes

>>> key[0]
19
>>> key[1]=0xff
>>> key
bytearray(b'\x13\xff\x00\x00\x08\x00')

and if you need it as a str (or bytes in Python 3), it's as simple as

>>> bytes(key)
'\x13\xff\x00\x00\x08\x00'

mozilla::CheckedInt<T> provides overflow-checked integer math for integer type T (using compiler intrinsics on clang and gcc as available). The code is under MPL 2.0 and depends on three (IntegerTypeTraits.h, Attributes.h and Compiler.h) other header-only non-standard library headers plus Mozilla-specific assertion machinery. You probably want to replace the assertion machinery if you import the code.

We now have a more modern way to do this work.

java.time

The java.time framework is bundled with Java 8 and later. See Tutorial. These new classes are inspired by Joda-Time, defined by JSR 310, and extended by the ThreeTen-Extra project. They are a vast improvement over the troublesome old classes, java.util.Date/.Calendar et al.

Note that the 3-4 letter codes like EDT are neither standardized nor unique. Avoid them whenever possible. Learn to use ISO 8601 standard formats instead. The java.time framework may take a stab at translating, but many of the commonly used codes have duplicate values.

By the way, note how java.time by default generates strings using the ISO 8601 formats but extended by appending the name of the time zone in brackets.

String input = "Thu Jun 18 20:56:02 EDT 2009";
DateTimeFormatter formatter = DateTimeFormatter.ofPattern ( "EEE MMM d HH:mm:ss zzz yyyy" , Locale.ENGLISH );
ZonedDateTime zdt = formatter.parse ( input , ZonedDateTime :: from );

Dump to console.

System.out.println ( "zdt : " + zdt );

When run.

zdt : 2009-06-18T20:56:02-04:00[America/New_York]

Adjust Time Zone

For fun let's adjust to the India time zone.

ZonedDateTime zdtKolkata = zdt.withZoneSameInstant ( ZoneId.of ( "Asia/Kolkata" ) );

zdtKolkata : 2009-06-19T06:26:02+05:30[Asia/Kolkata]

Convert to j.u.Date

If you really need a java.util.Date object for use with classes not yet updated to the java.time types, convert. Note that you are losing the assigned time zone, but have the same moment automatically adjusted to UTC.

java.util.Date date = java.util.Date.from( zdt.toInstant() );

you would need to first open your file in read format, save it to a variable, then open the second file in write format where you would write or append the variable using a the [::-1] slice, completely reversing the file. You can also use readlines() to make it into a list of lines, which you can manipulate

def copy_and_reverse(filename, newfile):
    with open(filename) as file:
        text = file.read()
    with open(newfile, "w") as file2:
        file2.write(text[::-1])

Do you have a firewall ? make sure that port 3306 is open.

On windows , by default mysql root account is created that is permitted to have access from localhost only unless you have selected the option to enable access from remote machines during installation .

creating or update the desired user with '%' as hostname .

example :

CREATE USER 'krish'@'%' IDENTIFIED BY 'password';

How to Creating an Arraylist of Objects.

Create an array to store the objects:

ArrayList<MyObject> list = new ArrayList<MyObject>();

In a single step:

list.add(new MyObject (1, 2, 3)); //Create a new object and adding it to list. 

or

MyObject myObject = new MyObject (1, 2, 3); //Create a new object.
list.add(myObject); // Adding it to the list.

Use this code, where li is the LinearLayout: li.setBackgroundColor(Color.parseColor("#ffff00"));

false == 0 and true = !false

i.e. anything that is not zero and can be converted to a boolean is not false, thus it must be true.

Some examples to clarify:

if(0)          // false
if(1)          // true
if(2)          // true
if(0 == false) // true
if(0 == true)  // false
if(1 == false) // false
if(1 == true)  // true
if(2 == false) // false
if(2 == true)  // false
cout << false  // 0
cout << true   // 1

true evaluates to 1, but any int that is not false (i.e. 0) evaluates to true but is not equal to true since it isn't equal to 1.

"A series of data manipulation statements that must either fully complete or fully fail, leaving the database in a consistent state"

The download property of links is new and not is supported in Internet Explorer (see the compatibility table here). For a cross-browser solution to this problem I would take a look at FileSaver.js

The simplest make file can be

all : test

test : test.o
        gcc -o test test.o 

test.o : test.c
        gcc -c test.c

clean :
        rm test *.o

For some picky web services, the request needs to have the content type set to JSON and the body to be a JSON string. For example:

Invoke-WebRequest -UseBasicParsing http://example.com/service -ContentType "application/json" -Method POST -Body "{ 'ItemID':3661515, 'Name':'test'}"

or the equivalent for XML, etc.

I used Ataturk's font like this. I didn't use "TTF" version. I translated orginal font version ("otf" version) to "eot" and "woof" version. Then It works in local but not working when I uploaded the files to server. So I added "TTF" version too like this. Now, It's working on Chrome and Firefox but Internet Explorer still defence. When you installed on your computer "Ataturk" font, then working IE too. But I wanted to use this font without installing.

@font-face {
    font-family: 'Ataturk';
    font-style: normal;
    font-weight: normal;
    src: url('font/ataturk.eot');
    src: local('Ataturk Regular'), url('font/ataturk.ttf') format('truetype'), 
    url('font/ataturk.woff') format('woff');
}

You can see it on my website here: http://www.canotur.com

Use the Font-property on the gridview. See MSDN for details and samples:

http://msdn.microsoft.com/en-us/library/system.windows.forms.datagridview.font.aspx

Once you have cloned the repo, you have everything: you can then hg up branchname or hg up tagname to update your working copy.

UP: hg up is a shortcut of hg update, which also has hg checkout alias for people with git habits.

.aspx is a rendered page. If you need a view, use an .aspx page. If all you need is backend functionality but will be staying on the same view, use an .ashx page.

(.*?) does not work for me. I am trying to match comments surrounded by /* */, which may contain multiple lines.

Try this:

([a]|[^a])

This regex matches a or anything else expect a. Absolutely, it means matching everything.

BTW, in my situation, /\*([a]|[^a])*/ matches C style comments.

Thank @mpen for a more concise way.

[\s\S]

In python 3

>>> from pathlib import Path    
>>> Path("/tmp/d/a.dat").name
'a.dat'

Just a quick change to wp-config.php

define('FS_METHOD','direct');

That’s it, enjoy your wordpress updates without ftp!

Alternate Method:

There are hosts out there that will prevent this method from working to ease your WordPress updating. Fortunately, there is another way to keep this pest from prompting you for your FTP user name and password.

Again, after the MYSQL login declarations in your wp-config.php file, add the following:

define("FTP_HOST", "localhost");
define("FTP_USER", "yourftpusername");
define("FTP_PASS", "yourftppassword");

You map your dispatcher on *.do:

<servlet-mapping>
   <servlet-name>Dispatcher</servlet-name>
   <url-pattern>*.do</url-pattern>
</servlet-mapping>

but your controller is mapped on an url without .do:

@RequestMapping("/editPresPage")

Try changing this to:

@RequestMapping("/editPresPage.do")

I encountered a similar problem only with a nested img in my anchor:

<a href="some/link">
   <img src="some/src">
</a>

When I applied

@media print {
   a[href]:after {
      content: none !important;
   }
}

I lost my img and the entire anchor width for some reason, so instead I used:

@media print {
   a[href]:after {
      visibility: hidden;
   }
}

which worked perfectly.

Bonus tip: inspect print preview

Use parameter substitution:

string=${string// /.}

This visualization can help us to find out difference between concept of element and tag (each indent means contain):

- element

        - content:

            - text 

            - other elements 

            - or empty

        - and its markup

            - tags (start or end tag)

                - element name

                - angle brackets < >

                - or attributes (just for start tag)

                - or slash / 

If you are doing this in a browser, you can capture keyboard events.

• keydown
• keypress
• keyup

Can all be listened to on HTML nodes in most browsers.

Webkit also supports...

• textInput

See for more details .. http://unixpapa.com/js/key.html

map.entrySet().stream()
                .sorted((k1, k2) -> -k1.getValue().compareTo(k2.getValue()))
                .forEach(k -> System.out.println(k.getKey() + ": " + k.getValue()));

Hashtable is synchronized, whereas HashMap isn't. That makes Hashtable slower than Hashmap.

For single thread applications, use HashMap since they are otherwise the same in terms of functionality.

This will give you duplicate rows:

vocabulary[duplicated(vocabulary$id),]

This will give you the number of duplicates:

dim(vocabulary[duplicated(vocabulary$id),])[1]

Example:

vocabulary2 <-rbind(vocabulary,vocabulary[1,]) #creates a duplicate at the end
vocabulary2[duplicated(vocabulary2$id),]
#            id year    sex education vocabulary
#21639 20040001 2004 Female         9          3
dim(vocabulary2[duplicated(vocabulary2$id),])[1]
#[1] 1 #=1 duplicate

EDIT

OK, with the additional information, here's what you should do: duplicated has a fromLast option which allows you to get duplicates from the end. If you combine this with the normal duplicated, you get all duplicates. The following example adds duplicates to the original vocabulary object (line 1 is duplicated twice and line 5 is duplicated once). I then use table to get the total number of duplicates per ID.

#Create vocabulary object with duplicates
voc.dups <-rbind(vocabulary,vocabulary[1,],vocabulary[1,],vocabulary[5,])

#List duplicates
dups <-voc.dups[duplicated(voc.dups$id)|duplicated(voc.dups$id, fromLast=TRUE),]
dups
#            id year    sex education vocabulary
#1     20040001 2004 Female         9          3
#5     20040008 2004   Male        14          1
#21639 20040001 2004 Female         9          3
#21640 20040001 2004 Female         9          3
#51000 20040008 2004   Male        14          1

#Count duplicates by id
table(dups$id)
#20040001 20040008 
#       3        2 

You should try

$ sudo gem install json -v '1.8.2'

in my case (Ubuntu 14.04) that didn't work directly and I had to do this:

$ sudo apt-get install ruby-dev

and then I could install the gem and continue. Had one more problem that was fixed by:

$ sudo apt-get install libsqlite3-dev

Hoping helps.

For Django 2:

from django.utils.deprecation import MiddlewareMixin


class DisableCSRF(MiddlewareMixin):
    def process_request(self, request):
        setattr(request, '_dont_enforce_csrf_checks', True)

That middleware must be added to settings.MIDDLEWARE when appropriate (in your test settings for example).

Note: the setting isn't not called MIDDLEWARE_CLASSES anymore.

Look at Process.Start and Process.StartInfo

Update for Swift 4:

let now = Date() // the current date/time
let oneDayFromNow = Calendar.current.date(byAdding: .day, value: 1, to: now) // Tomorrow with same time of day as now

I was trying to setup a Rails project in my freshly installed Ubuntu 16.04. I ran into the same issue while running bundle. Running

sudo apt-get install aptitude

followed by

sudo apt-get install libpq-dev

Solved it for me.