Programs & Examples On #Machine code

Usually you don't have to worry about calculating them as your assembler (or linker) will take of getting the calculations right. Let's say you have a small function:

func:
  slti $t0, $a0, 2
  beq $t0, $zero, cont
  ori $v0, $zero, 1
  jr $ra
cont:
  ...
  jal func
  ... 

When translating the above code into a binary stream of instructions the assembler (or linker if you first assembled into an object file) it will be determined where in memory the function will reside (let's ignore position independent code for now). Where in memory it will reside is usually specified in the ABI or given to you if you're using a simulator (like SPIM which loads the code at 0x400000 - note the link also contains a good explanation of the process).

Assuming we're talking about the SPIM case and our function is first in memory, the slti instruction will reside at 0x400000, the beq at 0x400004 and so on. Now we're almost there! For the beq instruction the branch target address is that of cont (0x400010) looking at a MIPS instruction reference we see that it is encoded as a 16-bit signed immediate relative to the next instruction (divided by 4 as all instructions must reside on a 4-byte aligned address anyway).

That is:

Current address of instruction + 4 = 0x400004 + 4 = 0x400008
Branch target = 0x400010
Difference = 0x400010 - 0x400008 = 0x8
To encode = Difference / 4 = 0x8 / 4 = 0x2 = 0b10

Encoding of beq $t0, $zero, cont

0001 00ss ssst tttt iiii iiii iiii iiii
---------------------------------------
0001 0001 0000 0000 0000 0000 0000 0010

As you can see you can branch to within -0x1fffc .. 0x20000 bytes. If for some reason, you need to jump further you can use a trampoline (an unconditional jump to the real target placed placed within the given limit).

Jump target addresses are, unlike branch target addresses, encoded using the absolute address (again divided by 4). Since the instruction encoding uses 6 bits for the opcode, this only leaves 26 bits for the address (effectively 28 given that the 2 last bits will be 0) therefore the 4 bits most significant bits of the PC register are used when forming the address (won't matter unless you intend to jump across 256 MB boundaries).

Returning to the above example the encoding for jal func is:

Destination address = absolute address of func = 0x400000
Divided by 4 = 0x400000 / 4 = 0x100000
Lower 26 bits = 0x100000 & 0x03ffffff = 0x100000 = 0b100000000000000000000

0000 11ii iiii iiii iiii iiii iiii iiii
---------------------------------------
0000 1100 0001 0000 0000 0000 0000 0000

You can quickly verify this, and play around with different instructions, using this online MIPS assembler i ran across (note it doesn't support all opcodes, for example slti, so I just changed that to slt here):

00400000: <func>    ; <input:0> func:
00400000: 0000002a  ; <input:1> slt $t0, $a0, 2
00400004: 11000002  ; <input:2> beq $t0, $zero, cont
00400008: 34020001  ; <input:3> ori $v0, $zero, 1
0040000c: 03e00008  ; <input:4> jr $ra
00400010: <cont>    ; <input:5> cont:
00400010: 0c100000  ; <input:7> jal func

In TASM (x86 assembly) it can look like this:

cmp BL, BH
je EQUAL       ; BL = BH
jg GREATER     ; BL > BH
jmp LESS       ; BL < BH

in this case it compares two 8bit numbers that we temporarily store in the higher and the lower part of the register B. Alternatively you might also consider using jbe (if BL <= BH) or jge/jae (if BL >= BH).

Hopefully someone finds it helpful :)

Assembly code is a human readable representation of machine code:

mov eax, 77
jmp anywhere

Machine code is pure hexadecimal code:

5F 3A E3 F1

I assume you mean object code as in an object file. This is a variant of machine code, with a difference that the jumps are sort of parameterized such that a linker can fill them in.

An assembler is used to convert assembly code into machine code (object code) A linker links several object (and library) files to generate an executable.

I have once written an assembler program in pure hex (no assembler available) luckily this was way back on the good old (ancient) 6502. But I'm glad there are assemblers for the pentium opcodes.

The format is as follows:

MINUTE (0-59), HOUR (0-23), DAY (1-31), MONTH (1-12), DAY OF THE WEEK (0-6)

The letter H, representing the word Hash can be inserted instead of any of the values. It will calculate the parameter based on the hash code of you project name.

This is so that if you are building several projects on your build machine at the same time, let’s say midnight each day, they do not all start their build execution at the same time. Each project starts its execution at a different minute depending on its hash code.

You can also specify the value to be between numbers, i.e. H(0,30) will return the hash code of the project where the possible hashes are 0-30.

Examples:

1. Start build daily at 08:30 in the morning, Monday - Friday: 30 08 * * 1-5

2. Weekday daily build twice a day, at lunchtime 12:00 and midnight 00:00, Sunday to Thursday: 00 0,12 * * 0-4

3. Start build daily in the late afternoon between 4:00 p.m. - 4:59 p.m. or 16:00 -16:59 depending on the projects hash: H 16 * * 1-5

4. Start build at midnight: @midnight or start build at midnight, every Saturday: 59 23 * * 6

5. Every first of every month between 2:00 a.m. - 02:30 a.m.: H(0,30) 02 01 * *

I try in this example to show you a complete example to personalize your OrderBy sorts

 import java.util.List;
 import org.springframework.data.domain.Page;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jpa.repository.*;
 import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 import org.springframework.data.domain.Sort;
 /**
 * Spring Data  repository for the User entity.
 */
 @SuppressWarnings("unused")
 @Repository
 public interface UserRepository extends JpaRepository<User, Long> {
 List <User> findAllWithCustomOrderBy(Sort sort);
 }

you will use this example : A method for build dynamically a object that instance of Sort :

import org.springframework.data.domain.Sort;
public class SampleOrderBySpring{
 Sort dynamicOrderBySort = createSort();
     public static void main( String[] args )
     {
       System.out.println("default sort \"firstName\",\"name\",\"age\",\"size\" ");
       Sort defaultSort = createStaticSort();
       System.out.println(userRepository.findAllWithCustomOrderBy(defaultSort ));


       String[] orderBySortedArray = {"name", "firstName"};
       System.out.println("default sort ,\"name\",\"firstName\" ");
       Sort dynamicSort = createDynamicSort(orderBySortedArray );
       System.out.println(userRepository.findAllWithCustomOrderBy(dynamicSort ));
      }
      public Sort createDynamicSort(String[] arrayOrdre) {
        return  Sort.by(arrayOrdre);
        }

   public Sort createStaticSort() {
        String[] arrayOrdre  ={"firstName","name","age","size");
        return  Sort.by(arrayOrdre);
        }
}

Using an OnClickListener

Inside your Activity instance's onCreate() method you need to first find your Button by it's id using findViewById() and then set an OnClickListener for your button and implement the onClick() method so that it starts your new Activity.

Button yourButton = (Button) findViewById(R.id.your_buttons_id);

yourButton.setOnClickListener(new OnClickListener(){
    public void onClick(View v){                        
        startActivity(new Intent(YourCurrentActivity.this, YourNewActivity.class));
    }
});

This is probably most developers preferred method. However, there is a common alternative.

Using onClick in XML

Alternatively you can use the android:onClick="yourMethodName" to declare the method name in your Activity which is called when you click your Button, and then declare your method like so;

public void yourMethodName(View v){
    startActivity(new Intent(YourCurrentActivity.this, YourNewActivity.class));
}

Also, don't forget to declare your new Activity in your manifest.xml. I hope this helps.

References;

• Starting Another Activity (Official API Guide)

You can use a Python script with scp and os library to make a system call.

1. ssh-keygen -t rsa -b 2048 (local machine)
2. ssh-copy-id user@remote_server_address
3. create a Python script like:

    import os
    cmd = 'scp user@remote_server_address:remote_file_path local_file_path'
    os.system(cmd)

4. create a rule in crontab to automate your script
5. done

The default string representation for a dictionary seems to be just right:

>>> a={3: 'foo', 17: 'bar' }
>>> a
{17: 'bar', 3: 'foo'}
>>> print a
{17: 'bar', 3: 'foo'}
>>> print "a=", a
a= {17: 'bar', 3: 'foo'}

Not sure if you can get at the "variable name", since variables in Python are just labels for values. See this question.

Depends on the consistency of the data - assuming a single space is the separator between what you want to appear in column one vs two:

SELECT SUBSTR(t.column_one, 1, INSTR(t.column_one, ' ')-1) AS col_one,
       SUBSTR(t.column_one, INSTR(t.column_one, ' ')+1) AS col_two
  FROM YOUR_TABLE t

Oracle 10g+ has regex support, allowing more flexibility depending on the situation you need to solve. It also has a regex substring method...

Reference:

• SUBSTR
• INSTR

Use this syntax:

mysql -u $user -p$passsword -Bse "command1;command2;....;commandn"

https://firebase.google.com/docs/firestore/manage-data/transactions

Use transactions and keep a number in the database somewhere that you can increase by one. This way you can get a nice numeric and simple id.

You could use the following style with opacity

input[disabled="disabled"], select[disabled="disabled"], textarea[disabled="disabled"] {
    opacity: 0.85 !important;
}

or a specific CSS class

.ui-state-disabled{
    opacity: 0.85 !important;
}

you can use awk, for example, cut off 1st,2nd and last 3 columns

awk '{for(i=3;i<=NF-3;i++} print $i}' file

if you have a programing language such as Ruby (1.9+)

$ ruby -F"\t" -ane 'print $F[2..-3].join("\t")' file

Arne Andersson trees are a simpler alternative to red-black trees, in which only right links can be red. This greatly simplifies maintenance, while keeping performance on par with red-black trees. The original paper gives a nice and short implementation for insertion and deletion.

In Angular v2 and up it is now:

@Component({ selector:'my-app', providers: [NameService], template: ... })

in your server side the code looks like:

var request = require('request');

app.post('/add', function(req, res){
  console.log(req.body);
  request.post(
    {
    url:'http://localhost:6001/add',
    json: {
      unit_name:req.body.unit_name,
      unit_price:req.body.unit_price
        },
    headers: {
        'Content-Type': 'application/json'
    }
    },
  function(error, response, body){
    // console.log(error);
    // console.log(response);
    console.log(body);
    res.send(body);
  });
  // res.send("body");
});

in receiving end server code looks like:

app.post('/add', function(req, res){
console.log('received request')
console.log(req.body);
let adunit = new AdUnit(req.body);
adunit.save()
.then(game => {
res.status(200).json({'adUnit':'AdUnit is added successfully'})
})
.catch(err => {
res.status(400).send('unable to save to database');
})
});

Schema is just two properties unit_name and unit_price.

Use the oninput event

<input type="text" oninput="myFunction();" />

You should put this line in your application context:

<context:component-scan base-package="com.cinebot.service" />

Read more about Automatically detecting classes and registering bean definitions in documentation.

The fact that the first digit has to be in the range 5-9 only applies in case of two digits. So, check for that in the case of 2 digits, and allow any more digits directly:

^([5-9]\d|\d{3,})$

This regexp has beginning/ending anchors to make sure you're checking all digits, and the string actually represents a number. The | means "or", so either [5-9]\d or any number with 3 or more digits. \d is simply a shortcut for [0-9].

Edit: To disallow numbers like 001:

^([5-9]\d|[1-9]\d{2,})$

This forces the first digit to be not a zero in the case of 3 or more digits.

Use the apache commons-lang3 lib

import org.apache.commons.lang3.exception.ExceptionUtils;

//...

String[] ss = ExceptionUtils.getRootCauseStackTrace(e);
logger.error(StringUtils.join(ss, System.lineSeparator()));

If you're not afraid of old java-style (non type safe generic) semantics, this also works and is simple'ish:

ArgumentCaptor<List> argument = ArgumentCaptor.forClass(List.class);
verify(subject.method(argument.capture()); // run your code
List<SomeType> list = argument.getValue(); // first captured List, etc.

The difference between Func and Action is simply whether you want the delegate to return a value (use Func) or not (use Action).

Func is probably most commonly used in LINQ - for example in projections:

 list.Select(x => x.SomeProperty)

or filtering:

 list.Where(x => x.SomeValue == someOtherValue)

or key selection:

 list.Join(otherList, x => x.FirstKey, y => y.SecondKey, ...)

Action is more commonly used for things like List<T>.ForEach: execute the given action for each item in the list. I use this less often than Func, although I do sometimes use the parameterless version for things like Control.BeginInvoke and Dispatcher.BeginInvoke.

Predicate is just a special cased Func<T, bool> really, introduced before all of the Func and most of the Action delegates came along. I suspect that if we'd already had Func and Action in their various guises, Predicate wouldn't have been introduced... although it does impart a certain meaning to the use of the delegate, whereas Func and Action are used for widely disparate purposes.

Predicate is mostly used in List<T> for methods like FindAll and RemoveAll.

So many ways to do this... for #NetCore use Lib..

    using System;
    using System.Collections.Generic;
    using System.Linq; // only required when .AsEnumerable() is used
    using System.ComponentModel.DataAnnotations;
    using Microsoft.AspNetCore.Mvc.Rendering;

Model...

namespace MyProject.Models
{
  public class MyModel
  {
    [Required]
    [Display(Name = "State")]
    public string StatePick { get; set; }
    public string state { get; set; }
    [StringLength(35, ErrorMessage = "State cannot be longer than 35 characters.")]
    public SelectList StateList { get; set; }
  }
}

Controller...

namespace MyProject.Controllers
{
    /// <summary>
    /// create SelectListItem from strings
    /// </summary>
    /// <param name="isValue">defaultValue is SelectListItem.Value is true, SelectListItem.Text if false</param>
    /// <returns></returns>
    private SelectListItem newItem(string value, string text, string defaultValue = "", bool isValue = false)
    {
        SelectListItem ss = new SelectListItem();
        ss.Text = text;
        ss.Value = value;

        // select default by Value or Text
        if (isValue && ss.Value == defaultValue || !isValue && ss.Text == defaultValue)
        {
            ss.Selected = true;
        }

        return ss;
    }

    /// <summary>
    /// this pulls the state name from _context and sets it as the default for the selectList
    /// </summary>
    /// <param name="myState">sets default value for list of states</param>
    /// <returns></returns>
    private SelectList getStateList(string myState = "")
    {
        List<SelectListItem> states = new List<SelectListItem>();
        SelectListItem chosen = new SelectListItem();

        // set default selected state to OHIO
        string defaultValue = "OH";
        if (!string.IsNullOrEmpty(myState))
        {
            defaultValue = myState;
        }

        try
        {
            states.Add(newItem("AL", "Alabama", defaultValue, true));
            states.Add(newItem("AK", "Alaska", defaultValue, true));
            states.Add(newItem("AZ", "Arizona", defaultValue, true));
            states.Add(newItem("AR", "Arkansas", defaultValue, true));
            states.Add(newItem("CA", "California", defaultValue, true));
            states.Add(newItem("CO", "Colorado", defaultValue, true));
            states.Add(newItem("CT", "Connecticut", defaultValue, true));
            states.Add(newItem("DE", "Delaware", defaultValue, true));
            states.Add(newItem("DC", "District of Columbia", defaultValue, true));
            states.Add(newItem("FL", "Florida", defaultValue, true));
            states.Add(newItem("GA", "Georgia", defaultValue, true));
            states.Add(newItem("HI", "Hawaii", defaultValue, true));
            states.Add(newItem("ID", "Idaho", defaultValue, true));
            states.Add(newItem("IL", "Illinois", defaultValue, true));
            states.Add(newItem("IN", "Indiana", defaultValue, true));
            states.Add(newItem("IA", "Iowa", defaultValue, true));
            states.Add(newItem("KS", "Kansas", defaultValue, true));
            states.Add(newItem("KY", "Kentucky", defaultValue, true));
            states.Add(newItem("LA", "Louisiana", defaultValue, true));
            states.Add(newItem("ME", "Maine", defaultValue, true));
            states.Add(newItem("MD", "Maryland", defaultValue, true));
            states.Add(newItem("MA", "Massachusetts", defaultValue, true));
            states.Add(newItem("MI", "Michigan", defaultValue, true));
            states.Add(newItem("MN", "Minnesota", defaultValue, true));
            states.Add(newItem("MS", "Mississippi", defaultValue, true));
            states.Add(newItem("MO", "Missouri", defaultValue, true));
            states.Add(newItem("MT", "Montana", defaultValue, true));
            states.Add(newItem("NE", "Nebraska", defaultValue, true));
            states.Add(newItem("NV", "Nevada", defaultValue, true));
            states.Add(newItem("NH", "New Hampshire", defaultValue, true));
            states.Add(newItem("NJ", "New Jersey", defaultValue, true));
            states.Add(newItem("NM", "New Mexico", defaultValue, true));
            states.Add(newItem("NY", "New York", defaultValue, true));
            states.Add(newItem("NC", "North Carolina", defaultValue, true));
            states.Add(newItem("ND", "North Dakota", defaultValue, true));
            states.Add(newItem("OH", "Ohio", defaultValue, true));
            states.Add(newItem("OK", "Oklahoma", defaultValue, true));
            states.Add(newItem("OR", "Oregon", defaultValue, true));
            states.Add(newItem("PA", "Pennsylvania", defaultValue, true));
            states.Add(newItem("RI", "Rhode Island", defaultValue, true));
            states.Add(newItem("SC", "South Carolina", defaultValue, true));
            states.Add(newItem("SD", "South Dakota", defaultValue, true));
            states.Add(newItem("TN", "Tennessee", defaultValue, true));
            states.Add(newItem("TX", "Texas", defaultValue, true));
            states.Add(newItem("UT", "Utah", defaultValue, true));
            states.Add(newItem("VT", "Vermont", defaultValue, true));
            states.Add(newItem("VA", "Virginia", defaultValue, true));
            states.Add(newItem("WA", "Washington", defaultValue, true));
            states.Add(newItem("WV", "West Virginia", defaultValue, true));
            states.Add(newItem("WI", "Wisconsin", defaultValue, true));
            states.Add(newItem("WY", "Wyoming", defaultValue, true));

            foreach (SelectListItem state in states)
            {
                if (state.Selected)
                {
                    chosen = state;
                    break;
                }
            }
        }
        catch (Exception err)
        {
            string ss = "ERR!   " + err.Source + "   " + err.GetType().ToString() + "\r\n" + err.Message.Replace("\r\n", "   ");
            ss = this.sendError("Online getStateList Request", ss, _errPassword);
            // return error
        }

        // .AsEnumerable() is not required in the pass.. it is an extension of Linq
        SelectList myList = new SelectList(states.AsEnumerable(), "Value", "Text", chosen);

        object val = myList.SelectedValue;

        return myList;
    }

    public ActionResult pickState(MyModel pData)
    {
        if (pData.StateList == null)
        {
            if (String.IsNullOrEmpty(pData.StatePick)) // state abbrev, value collected onchange
            {
                pData.StateList = getStateList();
            }
            else
            {
                pData.StateList = getStateList(pData.StatePick);
            }

            // assign values to state list items
            try
            {
                SelectListItem si = (SelectListItem)pData.StateList.SelectedValue;
                pData.state = si.Value;
                pData.StatePick = si.Value;
            }
            catch { }
        } 
    return View(pData);
    }
}

pickState.cshtml...

@model MyProject.Models.MyModel

@{
ViewBag.Title = "United States of America";
Layout = "~/Views/Shared/_Layout.cshtml";
}
<h2>@ViewBag.Title - Where are you...</h2>

@using (Html.BeginForm()) {
@Html.AntiForgeryToken()
@Html.ValidationSummary(true)

<fieldset>

    <div class="editor-label">
        @Html.DisplayNameFor(model => model.state)
    </div>
    <div class="display-field">            
        @Html.DropDownListFor(m => m.StatePick, Model.StateList, new { OnChange = "state.value = this.value;" })
        @Html.EditorFor(model => model.state)
        @Html.ValidationMessageFor(model => model.StateList)
    </div>         
</fieldset>
}

<div>
@Html.ActionLink("Back to List", "Index")
</div>

Easier way is to use the getString() function within the activity.

String myString = getString(R.string.mystring);

Reference: http://developer.android.com/guide/topics/resources/string-resource.html

I think this feature is added in a recent Android version, anyone who knows the history can comment on this.

PHP > 5.3 use fgetcsv() or str_getcsv(). Couldn't be simpler.

select to_number(exception_value) from exception where to_number(exception_value) = 105

Sometimes using   instead of spaces will work. Clearly it has drawbacks, though.

The ALL_DIRECTORIES data dictionary view will have information about all the directories that you have access to. That includes the operating system path

SELECT owner, directory_name, directory_path
  FROM all_directories

Are you testing/seeing this behaviour using IE? It's possible that IE is serving up those pages from the cache. It is notoriously hard to get IE to flush it's cache, and so on many occasions, even after you log out, typing the url of one of the "secured" pages would show the cached content from before.

(I've seen this behaviour even when you log as a different user, and IE shows the "Welcome " bar at the top of your page, with the old user's username. Nowadays, usually a reload will update it, but if it's persistant, it could still be a caching issue.)

Here is a really elegant solution from Chris Thielen ui-router-extras: $previousState

var previous = $previousState.get(); //Gets a reference to the previous state.

previous is an object that looks like: { state: fromState, params: fromParams } where fromState is the previous state and fromParams is the previous state parameters.

Sub AddColor()
    For Each cell In Selection
        R = Round(cell.Value)
        G = Round(cell.Offset(0, 1).Value)
        B = Round(cell.Offset(0, 2).Value)
        Cells(cell.Row, 1).Resize(1, 4).Interior.Color = RGB(R, G, B)
    Next cell
End Sub

Assuming that there are 3 columns R, G and B (in this order). Select first column ie R. press alt+F11 and run the above code. We have to select the first column (containing R or red values) and run the code every time we change the values to reflect the changes.

I hope this simpler code helps !

import numpy as np
df1 = df.replace(np.nan, '', regex=True)

This might help. It will replace all NaNs with an empty string.

Set oShell = CreateObject ("WScript.Shell") 
oShell.run "cmd.exe /C copy ""S:Claims\Sound.wav"" ""C:\WINDOWS\Media\Sound.wav"" "

Small And Best One

#test{
width: 202px;
}
<select id="test" size="1" name="mrraja">

For anyone who comes across this late, like me.

As others have stated, name isn't a valid attribute of an option element. Combining the accepted answer above with the answer from this other question, you get:

$(this).find('option:selected').text();

To create your cell styles see: http://poi.apache.org/spreadsheet/quick-guide.html#CustomColors.

Custom colors

HSSF:

HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet();
HSSFRow row = sheet.createRow((short) 0);
HSSFCell cell = row.createCell((short) 0);
cell.setCellValue("Default Palette");

//apply some colors from the standard palette,
// as in the previous examples.
//we'll use red text on a lime background

HSSFCellStyle style = wb.createCellStyle();
style.setFillForegroundColor(HSSFColor.LIME.index);
style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

HSSFFont font = wb.createFont();
font.setColor(HSSFColor.RED.index);
style.setFont(font);

cell.setCellStyle(style);

//save with the default palette
FileOutputStream out = new FileOutputStream("default_palette.xls");
wb.write(out);
out.close();

//now, let's replace RED and LIME in the palette
// with a more attractive combination
// (lovingly borrowed from freebsd.org)

cell.setCellValue("Modified Palette");

//creating a custom palette for the workbook
HSSFPalette palette = wb.getCustomPalette();

//replacing the standard red with freebsd.org red
palette.setColorAtIndex(HSSFColor.RED.index,
        (byte) 153,  //RGB red (0-255)
        (byte) 0,    //RGB green
        (byte) 0     //RGB blue
);
//replacing lime with freebsd.org gold
palette.setColorAtIndex(HSSFColor.LIME.index, (byte) 255, (byte) 204, (byte) 102);

//save with the modified palette
// note that wherever we have previously used RED or LIME, the
// new colors magically appear
out = new FileOutputStream("modified_palette.xls");
wb.write(out);
out.close();

XSSF:

 XSSFWorkbook wb = new XSSFWorkbook();
    XSSFSheet sheet = wb.createSheet();
    XSSFRow row = sheet.createRow(0);
    XSSFCell cell = row.createCell( 0);
    cell.setCellValue("custom XSSF colors");

    XSSFCellStyle style1 = wb.createCellStyle();
    style1.setFillForegroundColor(new XSSFColor(new java.awt.Color(128, 0, 128)));
    style1.setFillPattern(CellStyle.SOLID_FOREGROUND);

It's not implemented in C++. (also, char* strings? I hope not).

Usually if you have so many parameters it is a fairly serious code smell. But instead, why not simply value-initialize the struct and then assign each member?

header won't work for all

Use below simple code

<?php
        echo "<script> location.href='new_url'; </script>";
        exit;
?>

ill find easy way to find first element in Dictionary :)

 Dictionary<string, Dictionary<string, string>> like = 
 newDictionary<string,Dictionary<string, string>>();

 foreach(KeyValuePair<string, Dictionary<string, string>> _element in like)
 {
   Console.WriteLine(_element.Key); // or do something
   break;
 }

If you are using angular-cli, simply use command:

ng v

This could be an answer to your question:

JSONArray msg1 = (JSONArray) json.get("source");
for(int i = 0; i < msg1.length(); i++){
  String name = msg1.getString("name");
  int age     = msg1.getInt("age");
}

If performance matters to you make sure you time:

import sys
import timeit
import pandas as pd

print('Python %s on %s' % (sys.version, sys.platform))
print('Pandas version %s' % pd.__version__)

repeat = 3
numbers = 100

def time(statement, _setup=None):
    print (min(
        timeit.Timer(statement, setup=_setup or setup).repeat(
            repeat, numbers)))

print("Format %m/%d/%y")
setup = """import pandas as pd
import io

data = io.StringIO('''\
ProductCode,Date
''' + '''\
x1,07/29/15
x2,07/29/15
x3,07/29/15
x4,07/30/15
x5,07/29/15
x6,07/29/15
x7,07/29/15
y7,08/05/15
x8,08/05/15
z3,08/05/15
''' * 100)"""

time('pd.read_csv(data); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"]); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
     'infer_datetime_format=True); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
     'date_parser=lambda x: pd.datetime.strptime(x, "%m/%d/%y")); data.seek(0)')

print("Format %Y-%m-%d %H:%M:%S")
setup = """import pandas as pd
import io

data = io.StringIO('''\
ProductCode,Date
''' + '''\
x1,2016-10-15 00:00:43
x2,2016-10-15 00:00:56
x3,2016-10-15 00:00:56
x4,2016-10-15 00:00:12
x5,2016-10-15 00:00:34
x6,2016-10-15 00:00:55
x7,2016-10-15 00:00:06
y7,2016-10-15 00:00:01
x8,2016-10-15 00:00:00
z3,2016-10-15 00:00:02
''' * 1000)"""

time('pd.read_csv(data); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"]); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
     'infer_datetime_format=True); data.seek(0)')
time('pd.read_csv(data, parse_dates=["Date"],'
     'date_parser=lambda x: pd.datetime.strptime(x, "%Y-%m-%d %H:%M:%S")); data.seek(0)')

prints:

Python 3.7.1 (v3.7.1:260ec2c36a, Oct 20 2018, 03:13:28) 
[Clang 6.0 (clang-600.0.57)] on darwin
Pandas version 0.23.4
Format %m/%d/%y
0.19123052499999993
8.20691274
8.143124389
1.2384357139999977
Format %Y-%m-%d %H:%M:%S
0.5238807110000039
0.9202787830000005
0.9832778819999959
12.002349824999996

So with iso8601-formatted date (%Y-%m-%d %H:%M:%S is apparently an iso8601-formatted date, I guess the T can be dropped and replaced by a space) you should not specify infer_datetime_format (which does not make a difference with more common ones either apparently) and passing your own parser in just cripples performance. On the other hand, date_parser does make a difference with not so standard day formats. Be sure to time before you optimize, as usual.

From Linux this is what I did:

Remove the .AndroidStudioBeta folder:

rm -r ~/.AndroidStudioBeta

Remove the project folder. For example:

rm -r ~/AndroidStudioProjects

I needed to do both or stuff kept hanging around.

Hope this helps.

Python is neither pass-by-value nor pass-by-reference. It's more of "object references are passed by value" as described here:

1. Here's why it's not pass-by-value. Because

   def append(list):
       list.append(1)
   
   list = [0]
   reassign(list)
   append(list)
   

returns [0,1] showing that some kind of reference was clearly passed as pass-by-value does not allow a function to alter the parent scope at all.

Looks like pass-by-reference then, hu? Nope.

2. Here's why it's not pass-by-reference. Because

   def reassign(list):
     list = [0, 1]
   
   list = [0]
   reassign(list)
   print list
   

returns [0] showing that the original reference was destroyed when list was reassigned. pass-by-reference would have returned [0,1].

For more information look here:

If you want your function to not manipulate outside scope, you need to make a copy of the input parameters that creates a new object.

from copy import copy

def append(list):
  list2 = copy(list)
  list2.append(1)
  print list2

list = [0]
append(list)
print list

As of TypeScript 0.9 (currently an alpha release) you can use the enum definition like this:

enum TShirtSize {
  Small,
  Medium,
  Large
}

var mySize = TShirtSize.Large;

By default, these enumerations will be assigned 0, 1 and 2 respectively. If you want to explicitly set these numbers, you can do so as part of the enum declaration.

Listing 6.2 Enumerations with explicit members

enum TShirtSize {
  Small = 3,
  Medium = 5,
  Large = 8
}

var mySize = TShirtSize.Large;

Both of these examples lifted directly out of TypeScript for JavaScript Programmers.

Note that this is different to the 0.8 specification. The 0.8 specification looked like this - but it was marked as experimental and likely to change, so you'll have to update any old code:

Disclaimer - this 0.8 example would be broken in newer versions of the TypeScript compiler.

enum TShirtSize {
  Small: 3,
  Medium: 5,
  Large: 8
}

var mySize = TShirtSize.Large;

Disclaimer: I'm a developer of Cytoscape.js

Cytoscape.js is a HTML5 graph visualisation library. The API is sophisticated and follows jQuery conventions, including

• selectors for querying and filtering (cy.elements("node[weight >= 50].someClass") does much as you would expect),
• chaining (e.g. cy.nodes().unselect().trigger("mycustomevent")),
• jQuery-like functions for binding to events,
• elements as collections (like jQuery has collections of HTMLDomElements),
• extensibility (can add custom layouts, UI, core & collection functions, and so on),
• and more.

If you're thinking about building a serious webapp with graphs, you should at least consider Cytoscape.js. It's free and open-source:

http://js.cytoscape.org

I am wondering why you cannot put this in a batch file. Example:

cd D:\VBS\
WSCript Converter.vbs

Put the above code in a text file and save the text file with .bat extension. Now you have to simply run this .bat file.

Why not simply use angular.isObject with negation? e.g.

if (!angular.isObject(obj)) {
    return;
}

/*$mpdf = new mPDF('',    // mode - default ''
 '',    // format - A4, for example, default ''
 0,     // font size - default 0
 '',    // default font family
 15,    // margin_left
 15,    // margin right
 16,     // margin top
 16,    // margin bottom
 9,     // margin header
 9,     // margin footer
 'L');  // L - landscape, P - portrait*/

Try to check the length of the selector, if it returns you something then the element must exists else not.

if( $('#selector').length )         // use this if you are using id to check
{
     // it exists
}


if( $('.selector').length )         // use this if you are using class to check
{
     // it exists
}

Use the first if condition for id and the 2nd one for class.

When the normType is NORM_MINMAX, cv::normalize normalizes _src in such a way that the min value of dst is alpha and max value of dst is beta. cv::normalize does its magic using only scales and shifts (i.e. adding constants and multiplying by constants).

CV_8UC1 says how many channels dst has.

The documentation here is pretty clear: http://docs.opencv.org/modules/core/doc/operations_on_arrays.html#normalize

This may be what you are looking for:

http://jsfiddle.net/L4L67/

body>div {_x000D_
  background: #aaa;_x000D_
  display: flex;_x000D_
  flex-wrap: wrap;_x000D_
}_x000D_
_x000D_
body>div>div {_x000D_
  flex-grow: 1;_x000D_
  width: 33%;_x000D_
  height: 100px;_x000D_
}_x000D_
_x000D_
body>div>div:nth-child(even) {_x000D_
  background: #23a;_x000D_
}_x000D_
_x000D_
body>div>div:nth-child(odd) {_x000D_
  background: #49b;_x000D_
}

<div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
  <div></div>_x000D_
</div>

I'm a bit late but here's how I did this. The steps:

1. Create a list of all columns
2. Use itertools to take x combinations
3. Append each result R squared value to a result dataframe along with excluded column list
4. Sort the result DF in descending order of R squared to see which is the best fit.

This is the code I used on DataFrame called aft_tmt. Feel free to extrapolate to your use case..

import pandas as pd
# setting options to print without truncating output
pd.set_option('display.max_columns', None)
pd.set_option('display.max_colwidth', None)

import statsmodels.formula.api as smf
import itertools

# This section gets the column names of the DF and removes some columns which I don't want to use as predictors.
itercols = aft_tmt.columns.tolist()
itercols.remove("sc97")
itercols.remove("sc")
itercols.remove("grc")
itercols.remove("grc97")
print itercols
len(itercols)

# results DF
regression_res = pd.DataFrame(columns = ["Rsq", "predictors", "excluded"])

# excluded cols
exc = []

# change 9 to the number of columns you want to combine from N columns.
#Possibly run an outer loop from 0 to N/2?
for x in itertools.combinations(itercols, 9):
    lmstr = "+".join(x)
    m = smf.ols(formula = "sc ~ " + lmstr, data = aft_tmt)
    f = m.fit()
    exc = [item for item in x if item not in itercols]
    regression_res = regression_res.append(pd.DataFrame([[f.rsquared, lmstr, "+".join([y for y in itercols if y not in list(x)])]], columns = ["Rsq", "predictors", "excluded"]))

regression_res.sort_values(by="Rsq", ascending = False)

I use babel-plugin-transform-inline-environment-variables.

What I did was put a configuration files within S3 with my different environments.

s3://example-bucket/dev-env.sh
s3://example-bucket/prod-env.sh
s3://example-bucket/stage-env.sh

EACH env file:

FIRSTENV=FIRSTVALUE
SECONDENV=SECONDVALUE

Afterwards, I added a new script in my package.json that runs a script for bundling

if [ "$ENV" == "production" ]
then
  eval $(aws s3 cp s3://example-bucket/prod-env.sh - | sed 's/^/export /')
elif [ "$ENV" == "staging" ]
then
  eval $(aws s3 cp s3://example-bucket/stage-env.sh - | sed 's/^/export /')
else
  eval $(aws s3 cp s3://example-bucket/development-env.sh - | sed 's/^/export /')
fi

react-native start

Within your app you will probably have a config file that has:

const FIRSTENV = process.env['FIRSTENV']
const SECONDENV = process.env['SECONDENV']

which will be replaced by babel to:

const FIRSTENV = 'FIRSTVALUE'
const SECONDENV = 'SECONDVALUE'

REMEMBER you have to use process.env['STRING'] NOT process.env.STRING or it won't convert properly.

There is not a Transparent color code, but there is an Opacity styling. Check out the documentation about it over at developer.mozilla.org

You will probably want to set the color of the element and then apply the opacity to it.

.transparent-style{

    background-color: #ffffff;
    opacity: .4;

}

You can use some online transparancy generatory which will also give you browser specific stylings. e.g. take a look at http://www.css-opacity.pascal-seven.de/

Note though that when you set the transparency of an element, any child element becomes transparent also. So you really need to overlay any other elements.

You may also want to try using an RGBA colour using the Alpha (A) setting to change the opacity. e.g.

.transparent-style{
    background-color: rgba(255, 255, 255, .4);
}

Using RGBA over opacity means that your child elements are not transparent.

HTTP VS HTTPS PERFORMANCE COMPARISON

I have always associated HTTPS with slower page load times when compared to plain old HTTP. As a web developer, web page performance is important to me and anything that will slow down the performance of my web pages is a no-no.

In order to understand the performance implications involved, the diagram below gives you a basic idea of what happens under the hood when you make a request for a resource using HTTPS.

As you can see from the diagram above, there are a few extra steps that need to take place when using HTTPS compared to using plain HTTP. When you make a request using HTTPS, a handshake needs to occur in order to verify the authenticity of the request. This handshake is an extra step when compared to an HTTP request and does unfortunately incur some overhead.

In order to understand the performance implications and see for myself whether or not the performance impact would be significant, I used this site as a testing platform. I headed over to webpagetest.org and used the visual comparison tool to compare this site loading using HTTPS vs HTTP.

As you can see from Here is Test video Result using HTTPS did have an impact on my page load times, however the difference is negligible and I only noticed a 300 millisecond difference. It's important to note that these times depend on many factors, such as computer performance, connection speed, server load, and distance from server.

Your site may be different, and it is important to test your site thoroughly and check the performance impact involved in switching to HTTPS.

Here is the answer for those of you who need a Boostrap 3 solution.

In bootstrap 3 use 'shown.bs.tab' instead of 'shown' in the next line

// tab
$('#rowTab a:first').tab('show');

$('a[data-toggle="tab"]').on('shown.bs.tab', function (e) {
//show selected tab / active
 console.log ( $(e.target).attr('id') );
});

A way to write a common subset of HTML and XHTML

In the hope of greater portability.

In HTML, <script> is magic escapes everything until </script> appears.

So you can write:

<script>x = '<br/>';

and <br/> won't be considered a tag.

This is why strings such as:

x = '</scripts>'

must be escaped like:

x = '</scri' + 'pts>'

See: Why split the <script> tag when writing it with document.write()?

But XML (and thus XHTML, which is a "subset" of XML, unlike HTML), doesn't have that magic: <br/> would be seen as a tag.

<![CDATA[ is the XHTML way to say:

don't parse any tags until the next ]]>, consider it all a string

The // is added to make the CDATA work well in HTML as well.

In HTML <![CDATA[ is not magic, so it would be run by JavaScript. So // is used to comment it out.

The XHTML also sees the //, but will observe it as an empty comment line which is not a problem:

//

That said:

• compliant browsers should recognize if the document is HTML or XHTML from the initial doctype <!DOCTYPE html> vs <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
• compliant websites could rely on compliant browsers, and coordinate doctype with a single valid script syntax

But that violates the golden rule of the Internet:

don't trust third parties, or your product will break

Even in base Python you can do the computation in generic form

result = sum(x**2 for x in some_vector) ** 0.5

x ** 2 is surely not an hack and the computation performed is the same (I checked with cpython source code). I actually find it more readable (and readability counts).

Using instead x ** 0.5 to take the square root doesn't do the exact same computations as math.sqrt as the former (probably) is computed using logarithms and the latter (probably) using the specific numeric instruction of the math processor.

I often use x ** 0.5 simply because I don't want to add math just for that. I'd expect however a specific instruction for the square root to work better (more accurately) than a multi-step operation with logarithms.

If SUDO or apt-get is not accessible inside the Container, You can use, below option in running container.

docker exec -u root -it f83b5c5bf413 ash

"f83b5c5bf413" is my container ID & here is working example from my terminal:

You need to knock your console into raw mode. There is no built-in platform-independent way of getting there. jCurses might be interesting, though.

On a Unix system, this might work:

String[] cmd = {"/bin/sh", "-c", "stty raw </dev/tty"};
Runtime.getRuntime().exec(cmd).waitFor();

For example, if you want to take into account the time between keystrokes, here's sample code to get there.

You can use the grid feature for the second unused axis x2, which is the most natural way of drawing a set of regular spaced lines.

set grid x2tics
set x2tics 10 format "" scale 0

In general, the grid is drawn at the same position as the tics on the axis. In case the position of the lines does not correspond to the tics position, gnuplot provides an additional set of tics, called x2tics. format "" and scale 0 hides the x2tics so you only see the grid lines.

You can style the lines as usual with linewith, linecolor.

To check the database connection state you can just simple do the following

if(con.State == ConnectionState.Open){}

You can use the following script to add swap on Amazon Linux.

https://github.com/chetankapoor/swap

Download the script using wget:

wget https://raw.githubusercontent.com/chetankapoor/swap/master/swap.sh -O swap.sh

Then run the script with the following format:

sh swap.sh 2G

For a complete tutorial you can visit:

https://installvirtual.com/shell-script-to-create-swap/

Please find example below, it might help you

package jersey.rest.test;

import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.HEAD;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.Response;

@Path("/hello")
public class SimpleService {
    @GET
    @Path("/{param}")
    public Response getMsg(@PathParam("param") String msg) {
        String output = "Get:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/{param}")
    public Response postMsg(@PathParam("param") String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @POST
    @Path("/post")
    //@Consumes(MediaType.TEXT_XML)
    public Response postStrMsg( String msg) {
        String output = "POST:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @PUT
    @Path("/{param}")
    public Response putMsg(@PathParam("param") String msg) {
        String output = "PUT: Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @DELETE
    @Path("/{param}")
    public Response deleteMsg(@PathParam("param") String msg) {
        String output = "DELETE:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }

    @HEAD
    @Path("/{param}")
    public Response headMsg(@PathParam("param") String msg) {
        String output = "HEAD:Jersey say : " + msg;
        return Response.status(200).entity(output).build();
    }
}

for testing you can use any tool like RestClient (http://code.google.com/p/rest-client/)

You should implement a Custom List View, such that you define a Layout once and draw it for every row in the list view.

Like this:

sed 's/aaa=.*/aaa=xxx/'

If you want to guarantee that the aaa= is at the start of the line, make it:

sed 's/^aaa=.*/aaa=xxx/'

Since Python 3.5, subprocess.run() is recommended over subprocess.check_output():

>>> subprocess.run(['cat','/tmp/text.txt'], stdout=subprocess.PIPE).stdout
b'First line\nSecond line\n'

Since Python 3.7, instead of the above, you can use capture_output=true parameter to capture stdout and stderr:

>>> subprocess.run(['cat','/tmp/text.txt'], capture_output=True).stdout
b'First line\nSecond line\n'

Also, you may want to use universal_newlines=True or its equivalent since Python 3.7 text=True to work with text instead of binary:

>>> stdout = subprocess.run(['cat', '/tmp/text.txt'], capture_output=True, text=True).stdout
>>> print(stdout)
First line
Second line

See subprocess.run() documentation for more information.

This was once written for Gradle 2.x / 3.x in 2016 and is far outdated!! Please have a look at the documented solutions in Gradle 4 and up

To sum up both old answers (get best and minimum viable of both worlds):

some warm words first:

1. first, we need to define the sourceSet:

   sourceSets {
       integrationTest
   }
   

2. next we expand the sourceSet from test, therefor we use the test.runtimeClasspath (which includes all dependenciess from test AND test itself) as classpath for the derived sourceSet:

   sourceSets {
       integrationTest {
           compileClasspath += sourceSets.test.runtimeClasspath
           runtimeClasspath += sourceSets.test.runtimeClasspath // ***)
       }
   }
   

   • note) somehow this redeclaration / extend for sourceSets.integrationTest.runtimeClasspath is needed, but should be irrelevant since runtimeClasspath always expands output + runtimeSourceSet, don't get it

3. we define a dedicated task for just running integration tests:

   task integrationTest(type: Test) {
   }
   

4. Configure the integrationTest test classes and classpaths use. The defaults from the java plugin use the test sourceSet

   task integrationTest(type: Test) {
       testClassesDir = sourceSets.integrationTest.output.classesDir
       classpath = sourceSets.integrationTest.runtimeClasspath
   }
   

5. (optional) auto run after test

   integrationTest.dependsOn test
   

6. (optional) add dependency from check (so it always runs when build or check are executed)

   tasks.check.dependsOn(tasks.integrationTest)
   

7. (optional) add java,resources to the sourceSet to support auto-detection and create these "partials" in your IDE. i.e. IntelliJ IDEA will auto create sourceSet directories java and resources for each set if it doesn't exist:

   sourceSets {
        integrationTest {
            java
            resources
        }
   }
   

tl;dr

apply plugin: 'java'

// apply the runtimeClasspath from "test" sourceSet to the new one
// to include any needed assets: test, main, test-dependencies and main-dependencies
sourceSets {
    integrationTest {
        // not necessary but nice for IDEa's
        java
        resources

        compileClasspath += sourceSets.test.runtimeClasspath
        // somehow this redeclaration is needed, but should be irrelevant
        // since runtimeClasspath always expands compileClasspath
        runtimeClasspath += sourceSets.test.runtimeClasspath
    }
}

// define custom test task for running integration tests
task integrationTest(type: Test) {
    testClassesDir = sourceSets.integrationTest.output.classesDir
    classpath = sourceSets.integrationTest.runtimeClasspath
}
tasks.integrationTest.dependsOn(tasks.test)

referring to:

• gradle java chapter 45.7.1. Source set properties
• gradle java chapter 45.7.3. Some source set examples

Unfortunatly, the example code on github.com/gradle/gradle/subprojects/docs/src/samples/java/customizedLayout/build.gradle or …/gradle/…/withIntegrationTests/build.gradle seems not to handle this or has a different / more complex / for me no clearer solution anyway!

You can try this:

this.activatedRoute.paramMap.subscribe(x => {
    let id = x.get('id');
    console.log(id);  
});

Use JSON.

In the following example $php_variable can be any PHP variable.

<script type="text/javascript">
    var obj = <?php echo json_encode($php_variable); ?>;
</script>

In your code, you could use like the following:

drawChart(600/50, <?php echo json_encode($day); ?>, ...)

In cases where you need to parse out an object from JSON-string (like in an AJAX request), the safe way is to use JSON.parse(..) like the below:

var s = "<JSON-String>";
var obj = JSON.parse(s);

Here is another way of doing this for pyspark:

#import concat and lit functions from pyspark.sql.functions 
from pyspark.sql.functions import concat, lit

#Create your data frame
countryDF = sqlContext.createDataFrame([('Ethiopia',), ('Kenya',), ('Uganda',), ('Rwanda',)], ['East Africa'])

#Use select, concat, and lit functions to do the concatenation
personDF = countryDF.select(concat(countryDF['East Africa'], lit('n')).alias('East African'))

#Show the new data frame
personDF.show()

----------RESULT-------------------------

84
+------------+
|East African|
+------------+
|   Ethiopian|
|      Kenyan|
|     Ugandan|
|     Rwandan|
+------------+

Update
From v0.24.0 onwards, you can merge on DataFrame and Series as long as the Series is named.

df.merge(s.rename('new'), left_index=True, right_index=True)
# If series is already named,
# df.merge(s, left_index=True, right_index=True)

Nowadays, you can simply convert the Series to a DataFrame with to_frame(). So (if joining on index):

df.merge(s.to_frame(), left_index=True, right_index=True)

Try http://support.microsoft.com/kb/207438 which will work for 2007 if you follow v12.0 in the registry.

I know this is a very old thread, but still like to add my penny worth.

If I really need to code up a simple hex string to binary converter, I'd like to do it as follows.

public static byte[] hexToBinary(String s){

  /*
   * skipped any input validation code
   */

  byte[] data = new byte[s.length()/2];

  for( int i=0, j=0; 
       i<s.length() && j<data.length; 
       i+=2, j++)
  {
     data[j] = (byte)Integer.parseInt(s.substring(i, i+2), 16);
  }

  return data;
}

Not sure if you have all this setup, but for me I am using PHP and MYSQL. So I use a PHP class PHPExcel. This takes a file in nearly any format, xls, xlsx, cvs,... and then lets you read and / or insert.

So what I wind up doing is loading the excel in to a phpexcel object and then loop through all the rows. Based on what I want, I write a simple SQL insert command to insert the data in the excel file into my table.

On the front end it is a little work, but its just a matter of tweaking some of the existing code examples. But when you have it dialed in making changes to the import is simple and fast.

I was thundered when the following code worked.

import os

for file in os.listdir("../FutureBookList"):
    if file.endswith(".adoc"):
        filename, file_extension = os.path.splitext(file)
        print(filename)
        print(file_extension)
        continue
    else:
        continue

So, I checked the documentation and it says:

Changed in version 3.6: Accepts a path-like object.

path-like object:

An object representing a file system path. A path-like object is either a str or...

I did a little more digging and the following also works:

with open("../FutureBookList/file.txt") as file:
   data = file.read()

Yes, it is a bit puzzling at first.

In Ruby, methods may receive a code block in order to perform arbitrary segments of code.

When a method expects a block, it invokes it by calling the yield function.

This is very handy, for instance, to iterate over a list or to provide a custom algorithm.

Take the following example:

I'm going to define a Person class initialized with a name, and provide a do_with_name method that when invoked, would just pass the name attribute, to the block received.

class Person 
    def initialize( name ) 
         @name = name
    end

    def do_with_name 
        yield( @name ) 
    end
end

This would allow us to call that method and pass an arbitrary code block.

For instance, to print the name we would do:

person = Person.new("Oscar")

#invoking the method passing a block
person.do_with_name do |name|
    puts "Hey, his name is #{name}"
end

Would print:

Hey, his name is Oscar

Notice, the block receives, as a parameter, a variable called name (N.B. you can call this variable anything you like, but it makes sense to call it name). When the code invokes yield it fills this parameter with the value of @name.

yield( @name )

We could provide another block to perform a different action. For example, reverse the name:

#variable to hold the name reversed
reversed_name = ""

#invoke the method passing a different block
person.do_with_name do |name| 
    reversed_name = name.reverse
end

puts reversed_name

=> "racsO"

We used exactly the same method (do_with_name) - it is just a different block.

This example is trivial. More interesting usages are to filter all the elements in an array:

 days = ["monday", "tuesday", "wednesday", "thursday", "friday"]  

 # select those which start with 't' 
 days.select do | item |
     item.match /^t/
 end

=> ["tuesday", "thursday"]

Or, we can also provide a custom sort algorithm, for instance based on the string size:

 days.sort do |x,y|
    x.size <=> y.size
 end

=> ["monday", "friday", "tuesday", "thursday", "wednesday"]

I hope this helps you to understand it better.

BTW, if the block is optional you should call it like:

yield(value) if block_given?

If is not optional, just invoke it.

EDIT

@hmak created a repl.it for these examples: https://repl.it/@makstaks/blocksandyieldsrubyexample

The error you have is because -credential without -computername can't exist.

You can try this way:

Invoke-Command -Credential $migratorCreds  -ScriptBlock ${function:Get-LocalUsers} -ArgumentList $xmlPRE,$migratorCreds -computername YOURCOMPUTERNAME

Using jQuery, you can like the map() method like so;

 $.map(arr, function(val,i) { 
     return parseInt(val); 
 });

Since the question is How to generate random colors in matplotlib? and as I was searching for an answer concerning pie plots, I think it is worth to put an answer here (for pies)

import numpy as np
from random import sample
import matplotlib.pyplot as plt
import matplotlib.colors as pltc
all_colors = [k for k,v in pltc.cnames.items()]

fracs = np.array([600, 179, 154, 139, 126, 1185])
labels = ["label1", "label2", "label3", "label4", "label5", "label6"]
explode = ((fracs == max(fracs)).astype(int) / 20).tolist()

for val in range(2):
    colors = sample(all_colors, len(fracs))
    plt.figure(figsize=(8,8))
    plt.pie(fracs, labels=labels, autopct='%1.1f%%', 
            shadow=True, explode=explode, colors=colors)
    plt.legend(labels, loc=(1.05, 0.7), shadow=True)
    plt.show()

Output

I would also like to recommend vscode extension Peep, which allows you to toggle hide on the excluded files in your projects settings.json.

Hit F1 for vscode command line (command palette), then

ext install [enter] peep [enter]

You can bind "extension.peepToggle" to a key like Ctrl+Shift+P (same as F1 by default) for easy toggling. Hit Ctrl+K Ctrl+S for key bindings, enter peep, select Peep Toggle and add your binding.

A few days ago I've encountered to same situation. A very simple trick solved this problem. I set hidden my initial view controller before launch2. If initial view controller is the right controller it's set to visible in viewDidLoad. Else, a segue is performed to desired view controller. It works perfectly in iOS 6.1 and above. I'm sure it works on earlier versions of iOS.

If you can use a Database project in Visual Studio, you can make your changes in the project and use schema compare to synchronize the changes to your database.

This way, dropping and recreating the dependent objects is handled by the change script.

This code does not require permission at all. It is restricted only to Wi-Fi network connectivity state changes (any other network is not taken into account). The receiver is statically published in the AndroidManifest.xml file and does not need to be exported as it will be invoked by the system protected broadcast, NETWORK_STATE_CHANGED_ACTION, at every network connectivity state change.

AndroidManifest:

<receiver
    android:name=".WifiReceiver"
    android:enabled="true"
    android:exported="false">

    <intent-filter>
        <!--protected-broadcast: Special broadcast that only the system can send-->
        <!--Corresponds to: android.net.wifi.WifiManager.NETWORK_STATE_CHANGED_ACTION-->
        <action android:name="android.net.wifi.STATE_CHANGE" />
    </intent-filter>

</receiver>

BroadcastReceiver class:

public class WifiReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
/*
 Tested (I didn't test with the WPS "Wi-Fi Protected Setup" standard):
 In API15 (ICE_CREAM_SANDWICH) this method is called when the new Wi-Fi network state is:
 DISCONNECTED, OBTAINING_IPADDR, CONNECTED or SCANNING

 In API19 (KITKAT) this method is called when the new Wi-Fi network state is:
 DISCONNECTED (twice), OBTAINING_IPADDR, VERIFYING_POOR_LINK, CAPTIVE_PORTAL_CHECK
 or CONNECTED

 (Those states can be obtained as NetworkInfo.DetailedState objects by calling
 the NetworkInfo object method: "networkInfo.getDetailedState()")
*/
    /*
     * NetworkInfo object associated with the Wi-Fi network.
     * It won't be null when "android.net.wifi.STATE_CHANGE" action intent arrives.
     */
    NetworkInfo networkInfo = intent.getParcelableExtra(WifiManager.EXTRA_NETWORK_INFO);

    if (networkInfo != null && networkInfo.isConnected()) {
        // TODO: Place the work here, like retrieving the access point's SSID

        /*
         * WifiInfo object giving information about the access point we are connected to.
         * It shouldn't be null when the new Wi-Fi network state is CONNECTED, but it got
         * null sometimes when connecting to a "virtualized Wi-Fi router" in API15.
         */
        WifiInfo wifiInfo = intent.getParcelableExtra(WifiManager.EXTRA_WIFI_INFO);
        String ssid = wifiInfo.getSSID();
    }
}
}

Permissions:

None

The character in question &#65279 is the Unicode Character 'ZERO WIDTH NO-BREAK SPACE' (U+FEFF). It may be that you copied it into your code via a copy/paste without realizing it. The fact that it's not visible makes it hard to tell if you're using an editor that displays actual unicode characters.

One option is to open the file in a very basic text editor that doesn't understand unicode, or one that understands it but has the ability to display any non-ascii characters using their actual codes.

Once you locate it, you can delete the small block of text around it and retype that text manually.

This specifies the default collation for the database. Every text field that you create in tables in the database will use that collation, unless you specify a different one.

A database always has a default collation. If you don't specify any, the default collation of the SQL Server instance is used.

The name of the collation that you use shows that it uses the Latin1 code page 1, is case insensitive (CI) and accent sensitive (AS). This collation is used in the USA, so it will contain sorting rules that are used in the USA.

The collation decides how text values are compared for equality and likeness, and how they are compared when sorting. The code page is used when storing non-unicode data, e.g. varchar fields.

Sorry to dig up an old question but in case someone stumbles onto this thread and wants a quicker solution.

Bulk inserting a unknown width file with \n row terminators into a temp table that is created outside of the EXEC statement.

DECLARE     @SQL VARCHAR(8000)

IF OBJECT_ID('TempDB..#BulkInsert') IS NOT NULL
BEGIN
    DROP TABLE #BulkInsert
END

CREATE TABLE #BulkInsert
(
    Line    VARCHAR(MAX)
)

SET @SQL = 'BULK INSERT #BulkInser FROM ''##FILEPATH##'' WITH (ROWTERMINATOR = ''\n'')'
EXEC (@SQL)

SELECT * FROM #BulkInsert

Further support that dynamic SQL within an EXEC statement has access to temp tables outside of the EXEC statement. http://sqlfiddle.com/#!3/d41d8/19343

DECLARE     @SQL VARCHAR(8000)

IF OBJECT_ID('TempDB..#BulkInsert') IS NOT NULL
BEGIN
    DROP TABLE #BulkInsert
END

CREATE TABLE #BulkInsert
(
    Line    VARCHAR(MAX)
)
INSERT INTO #BulkInsert
(
    Line
)
SELECT 1
UNION SELECT 2
UNION SELECT 3

SET @SQL = 'SELECT * FROM #BulkInsert'
EXEC (@SQL)

Further support, written for MSSQL2000 http://technet.microsoft.com/en-us/library/aa175921(v=sql.80).aspx

Example at the bottom of the link

DECLARE @cmd VARCHAR(1000), @ExecError INT
CREATE TABLE #ErrFile (ExecError INT)
SET @cmd = 'EXEC GetTableCount ' + 
'''pubs.dbo.authors''' + 
'INSERT #ErrFile VALUES(@@ERROR)'
EXEC(@cmd)
SET @ExecError = (SELECT * FROM #ErrFile)
SELECT @ExecError AS '@@ERROR'

MSDN has provided easy way to debug the stored procedure. Please check this link-
How to: Debug Stored Procedures

Command go

Download and install packages and dependencies

Usage:

go get [-d] [-f] [-t] [-u] [-v] [-fix] [-insecure] [build flags] [packages]

Get downloads the packages named by the import paths, along with their dependencies. It then installs the named packages, like 'go install'.

The -d flag instructs get to stop after downloading the packages; that is, it instructs get not to install the packages.

The -f flag, valid only when -u is set, forces get -u not to verify that each package has been checked out from the source control repository implied by its import path. This can be useful if the source is a local fork of the original.

The -fix flag instructs get to run the fix tool on the downloaded packages before resolving dependencies or building the code.

The -insecure flag permits fetching from repositories and resolving custom domains using insecure schemes such as HTTP. Use with caution.

The -t flag instructs get to also download the packages required to build the tests for the specified packages.

The -u flag instructs get to use the network to update the named packages and their dependencies. By default, get uses the network to check out missing packages but does not use it to look for updates to existing packages.

The -v flag enables verbose progress and debug output.

Get also accepts build flags to control the installation. See 'go help build'.

When checking out a new package, get creates the target directory GOPATH/src/. If the GOPATH contains multiple entries, get uses the first one. For more details see: 'go help gopath'.

When checking out or updating a package, get looks for a branch or tag that matches the locally installed version of Go. The most important rule is that if the local installation is running version "go1", get searches for a branch or tag named "go1". If no such version exists it retrieves the default branch of the package.

When go get checks out or updates a Git repository, it also updates any git submodules referenced by the repository.

Get never checks out or updates code stored in vendor directories.

For more about specifying packages, see 'go help packages'.

For more about how 'go get' finds source code to download, see 'go help importpath'.

This text describes the behavior of get when using GOPATH to manage source code and dependencies. If instead the go command is running in module-aware mode, the details of get's flags and effects change, as does 'go help get'. See 'go help modules' and 'go help module-get'.

See also: go build, go install, go clean.

For example, showing verbose output,

$ go get -v github.com/capotej/groupcache-db-experiment/...
github.com/capotej/groupcache-db-experiment (download)
github.com/golang/groupcache (download)
github.com/golang/protobuf (download)
github.com/capotej/groupcache-db-experiment/api
github.com/capotej/groupcache-db-experiment/client
github.com/capotej/groupcache-db-experiment/slowdb
github.com/golang/groupcache/consistenthash
github.com/golang/protobuf/proto
github.com/golang/groupcache/lru
github.com/capotej/groupcache-db-experiment/dbserver
github.com/capotej/groupcache-db-experiment/cli
github.com/golang/groupcache/singleflight
github.com/golang/groupcache/groupcachepb
github.com/golang/groupcache
github.com/capotej/groupcache-db-experiment/frontend
$ 

It is very simple, just add a property:

public string Value {
  get { return textBox1.Text; }
  set { textBox1.Text = value; }
}

Using the Text property is a bit trickier, the UserControl class intentionally hides it. You'll need to override the attributes to put it back in working order:

[Browsable(true), EditorBrowsable(EditorBrowsableState.Always), Bindable(true)]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public override string Text {
  get { return textBox1.Text; }
  set { textBox1.Text = value; }
}

What you're trying to insert is not a date, I think, but a string. You need to use to_date() function, like this:

insert into table t1 (id, date_field) values (1, to_date('20.06.2013', 'dd.mm.yyyy'));

from http://code.google.com/p/fast-serialization/wiki/QuickStartHeapOff

What is Heap-Offloading ?

Usually all non-temporary objects you allocate are managed by java's garbage collector. Although the VM does a decent job doing garbage collection, at a certain point the VM has to do a so called 'Full GC'. A full GC involves scanning the complete allocated Heap, which means GC pauses/slowdowns are proportional to an applications heap size. So don't trust any person telling you 'Memory is Cheap'. In java memory consumtion hurts performance. Additionally you may get notable pauses using heap sizes > 1 Gb. This can be nasty if you have any near-real-time stuff going on, in a cluster or grid a java process might get unresponsive and get dropped from the cluster.

However todays server applications (frequently built on top of bloaty frameworks ;-) ) easily require heaps far beyond 4Gb.

One solution to these memory requirements, is to 'offload' parts of the objects to the non-java heap (directly allocated from the OS). Fortunately java.nio provides classes to directly allocate/read and write 'unmanaged' chunks of memory (even memory mapped files).

So one can allocate large amounts of 'unmanaged' memory and use this to save objects there. In order to save arbitrary objects into unmanaged memory, the most viable solution is the use of Serialization. This means the application serializes objects into the offheap memory, later on the object can be read using deserialization.

The heap size managed by the java VM can be kept small, so GC pauses are in the millis, everybody is happy, job done.

It is clear, that the performance of such an off heap buffer depends mostly on the performance of the serialization implementation. Good news: for some reason FST-serialization is pretty fast :-).

Sample usage scenarios:

• Session cache in a server application. Use a memory mapped file to store gigabytes of (inactive) user sessions. Once the user logs into your application, you can quickly access user-related data without having to deal with a database.
• Caching of computational results (queries, html pages, ..) (only applicable if computation is slower than deserializing the result object ofc).
• very simple and fast persistance using memory mapped files

Edit: For some scenarios one might choose more sophisticated Garbage Collection algorithms such as ConcurrentMarkAndSweep or G1 to support larger heaps (but this also has its limits beyond 16GB heaps). There is also a commercial JVM with improved 'pauseless' GC (Azul) available.

text/xml is for documents that would be meaningful to a human if presented as text without further processing, application/xml is for everything else

Every XML entity is suitable for use with the application/xml media type without modification. But this does not exploit the fact that XML can be treated as plain text in many cases. MIME user agents (and web user agents) that do not have explicit support for application/xml will treat it as application/octet-stream, for example, by offering to save it to a file.

To indicate that an XML entity should be treated as plain text by default, use the text/xml media type. This restricts the encoding used in the XML entity to those that are compatible with the requirements for text media types as described in [RFC-2045] and [RFC-2046], e.g., UTF-8, but not UTF-16 (except for HTTP).

— http://www.ietf.org/rfc/rfc2376.txt

In the first example, you are reassigning the variable a, while in the second one you are modifying the data in-place, using the += operator.

See the section about 7.2.1. Augmented assignment statements :

An augmented assignment expression like x += 1 can be rewritten as x = x + 1 to achieve a similar, but not exactly equal effect. In the augmented version, x is only evaluated once. Also, when possible, the actual operation is performed in-place, meaning that rather than creating a new object and assigning that to the target, the old object is modified instead.

+= operator calls __iadd__. This function makes the change in-place, and only after its execution, the result is set back to the object you are "applying" the += on.

__add__ on the other hand takes the parameters and returns their sum (without modifying them).

As of September 2016 (VSCode 1.6), this is now officially supported.

Add the following to your settings.json file:

"editor.formatOnSave": true

Using docker-compose, I accomplished this by creating a service that mounts the volumes that I need and committing the image of the container. Then, in the subsequent service, I rely on the previously committed image, which has all of the data stored at mounted locations. You will then have have to copy these files to their ultimate destination, as host mounted directories do not get committed when running a docker commit command

You don't have to use docker-compose to accomplish this, but it makes life a bit easier

# docker-compose.yml

version: '3'
  services:
    stage:
      image: alpine
      volumes:
        - /host/machine/path:/tmp/container/path
      command: bash -c "cp -r /tmp/container/path /final/container/path"
    setup:
      image: stage

# setup.sh

# Start "stage" service
docker-compose up stage

# Commit changes to an image named "stage"
docker commit $(docker-compose ps -q stage) stage

# Start setup service off of stage image
docker-compose up setup

Like said in docs, use

<meta property="og:url"           content="http://www.your-domain.com/your-page.html" />
<meta property="og:type"          content="website" />
<meta property="og:title"         content="Your Website Title" />
<meta property="og:description"   content="Your description" />
<meta property="og:image"         content="http://www.your-domain.com/path/image.jpg" />

image size recommended: 1 200 x 630

Use typings to access node functions from TypeScript:

typings install env~node --global

If you don't have typings install it:

npm install typings --global

I saw that the question is already answered, but if you'd like to learn more details, there are a total of 3 cases of communication between components:

• Case 1: Parent to Child communication
• Case 2: Child to Parent communication
• Case 3: Not-related components (any component to any component) communication

I was the same problem and as Pengyy suggest, that is the fix. Thanks a lot.

My problem on the Browser Console:

PortafolioComponent.html:3 ERROR Error: Error trying to diff '[object Object]'. Only arrays and iterables are allowed(…)

In my case my code fix was:

//productos.service.ts
import { Injectable } from '@angular/core';
import { Http } from '@angular/http';

@Injectable()
export class ProductosService {

  productos:any[] = [];
  cargando:boolean = true;

  constructor( private http:Http) {
    this.cargar_productos();
  }

  public cargar_productos(){

    this.cargando = true;

    this.http.get('https://webpage-88888a1.firebaseio.com/productos.json')
      .subscribe( res => {
        console.log(res.json());
        this.cargando = false;
        this.productos = res.json().productos; // Before this.productos = res.json(); 
      });
  }

}

I was able to use

return View::make('myviewfolder.myview', compact('view1','view2','view3'));

I don't know if it's because I am using PHP 5.5 it works great :)

Make your Project and Workspace to point to JDK7 which will resolve the issue. https://developers.google.com/eclipse/docs/jdk_compliance has given ways to modify Compliance and Facet level changes.

Try This:

I think that you want something like this.

HTML:

<div id="1">
    My Content 1
</div>

<div id="2" style="display:none;">
    My Dynamic Content
</div>
<button id="btnClick">Click me!</button>

jQuery:

$('#btnClick').on('click',function(){
if($('#1').css('display')!='none'){
$('#2').show().siblings('div').hide();
}else if($('#2').css('display')!='none'){
    $('#1').show().siblings('div').hide();
}
});

JsFiddle:
http://jsfiddle.net/ha6qp7w4/1113/ <--- see this I hope You want something like this.

Try converting to a string and then use "%4.4s" as the format specifier. This makes it a fixed width format.

Reference taken from this Article:

The main differences:

TIMESTAMP used to track changes to records, and update every time when the record is changed. DATETIME used to store specific and static value which is not affected by any changes in records.

TIMESTAMP also affected by different TIME ZONE related setting. DATETIME is constant.

TIMESTAMP internally converted current time zone to UTC for storage, and during retrieval converted back to the current time zone. DATETIME can not do this.

TIMESTAMP supported range: ‘1970-01-01 00:00:01' UTC to ‘2038-01-19 03:14:07' UTC DATETIME supported range: ‘1000-01-01 00:00:00' to ‘9999-12-31 23:59:59'

In singleton pattern you can create the singleton as an instance of a derived type, you can't do that with a static class.

Quick Example:

if( useD3D )
    IRenderer::instance = new D3DRenderer
else
    IRenderer::instance = new OpenGLRenderer

Though OP is asking about Windows, this error also occurs on Ubuntu Linux and Google lists this result first when you search for the error"QtCreator: No valid kits found".

On Ubuntu this is solved by running:

For Qt5:

sudo apt-get install qt5-default

For Qt4:

sudo apt-get install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui

This question is answered here and here, though those entries are less SEO-friendly...

TL;DR: If you are using VirtualBox shared folders, do not create the Chrome profile there!

I ran into this error under Debian 10, but it did not occur under Ubuntu 18.04.

In my Selenium tests, I wanted to install an extension, and use the following Chrome options:

chromeOptions.addArguments(
  `load-extension=${this.extensionDir}`,
  `user-data-dir=${this.profileDir}`,
  `disable-gpu`,
  `no-sandbox`,
  `disable-setuid-sandbox`,
  `disable-dev-shm-usage`,
);

The issue was that I was attempting to create a Chrome profile under a nonstandard directory which was part of a VirtualBox shared folder. Despite using the exact same version of Chrome and Chromedriver, it didn't work under Debian.

The solution was to choose a profile directory somewhere else (e.g. ~/chrome-profile).

C++20 will add constexpr strings and vectors

The following proposal has been accepted apparently: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0980r0.pdf and it adds constructors such as:

// 20.3.2.2, construct/copy/destroy
constexpr
basic_string() noexcept(noexcept(Allocator())) : basic_string(Allocator()) { }
constexpr
explicit basic_string(const Allocator& a) noexcept;
constexpr
basic_string(const basic_string& str);
constexpr
basic_string(basic_string&& str) noexcept;

in addition to constexpr versions of all / most methods.

There is no support as of GCC 9.1.0, the following fails to compile:

#include <string>

int main() {
    constexpr std::string s("abc");
}

with:

g++-9 -std=c++2a main.cpp

with error:

error: the type ‘const string’ {aka ‘const std::__cxx11::basic_string<char>’} of ‘constexpr’ variable ‘s’ is not literal

std::vector discussed at: Cannot create constexpr std::vector

Tested in Ubuntu 19.04.

Below it's an approach to detect Debian and RedHat based Linux OS making use of the /etc/lsb-release and /etc/os-release (depending on the Linux flavor you're using) and take a simple action based on it.

#!/bin/bash
set -e

YUM_PACKAGE_NAME="python python-devl python-pip openssl-devel"
DEB_PACKAGE_NAME="python2.7 python-dev python-pip libssl-dev"

 if cat /etc/*release | grep ^NAME | grep CentOS; then
    echo "==============================================="
    echo "Installing packages $YUM_PACKAGE_NAME on CentOS"
    echo "==============================================="
    yum install -y $YUM_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Red; then
    echo "==============================================="
    echo "Installing packages $YUM_PACKAGE_NAME on RedHat"
    echo "==============================================="
    yum install -y $YUM_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Fedora; then
    echo "================================================"
    echo "Installing packages $YUM_PACKAGE_NAME on Fedorea"
    echo "================================================"
    yum install -y $YUM_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Ubuntu; then
    echo "==============================================="
    echo "Installing packages $DEB_PACKAGE_NAME on Ubuntu"
    echo "==============================================="
    apt-get update
    apt-get install -y $DEB_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Debian ; then
    echo "==============================================="
    echo "Installing packages $DEB_PACKAGE_NAME on Debian"
    echo "==============================================="
    apt-get update
    apt-get install -y $DEB_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Mint ; then
    echo "============================================="
    echo "Installing packages $DEB_PACKAGE_NAME on Mint"
    echo "============================================="
    apt-get update
    apt-get install -y $DEB_PACKAGE_NAME
 elif cat /etc/*release | grep ^NAME | grep Knoppix ; then
    echo "================================================="
    echo "Installing packages $DEB_PACKAGE_NAME on Kanoppix"
    echo "================================================="
    apt-get update
    apt-get install -y $DEB_PACKAGE_NAME
 else
    echo "OS NOT DETECTED, couldn't install package $PACKAGE"
    exit 1;
 fi

exit 0

Output example for Ubuntu Linux:

delivery@delivery-E5450$ sudo sh detect_os.sh
[sudo] password for delivery: 
NAME="Ubuntu"
===============================================
Installing packages python2.7 python-dev python-pip libssl-dev on Ubuntu
===============================================
Ign http://dl.google.com stable InRelease
Get:1 http://dl.google.com stable Release.gpg [916 B]                          
Get:2 http://dl.google.com stable Release [1.189 B] 
...            

For anyone using Ionic 3 and Angular 5, I had the same error pop up and I didn't find any solutions here. But I did find some steps that worked for me.

Steps to reproduce:

• npm install -g cordova ionic
• ionic start myApp tabs
• cd myApp
• cd node_modules/angular/common (no http module exists).

ionic:(run ionic info from a terminal/cmd prompt), check versions and make sure they're up to date. You can also check the angular versions and packages in the package.json folder in your project.

I checked my dependencies and packages and installed cordova. Restarted atom and the error went away. Hope this helps!

As ping works, but telnetto port 80 does not, the HTTP port 80 is closed on your machine. I assume that your browser's HTTP connection goes through a proxy (as browsing works, how else would you read stackoverflow?). You need to add some code to your python program, that handles the proxy, like described here:

Using an HTTP PROXY - Python

One of the top answers did not work for me, because, after a little bit trial and error, the li:before also needed the css rule display:inline-block.

So this is a fully working answer for me:

ul.dashes{
  list-style: none;
  padding-left: 2em;
  li{
    &:before{
      content: "-";
      text-indent: -2em;
      display: inline-block;
    }
  }
}

I have tried the following option in Helios Version of Eclipse. Simply press CTRL+F you will get the "Find/Replace" Window on your screen

You can use a FileReader object to read text file here is example code:

  <div id="page-wrapper">

        <h1>Text File Reader</h1>
        <div>
            Select a text file: 
            <input type="file" id="fileInput">
        </div>
        <pre id="fileDisplayArea"><pre>

    </div>
<script>
window.onload = function() {
        var fileInput = document.getElementById('fileInput');
        var fileDisplayArea = document.getElementById('fileDisplayArea');

        fileInput.addEventListener('change', function(e) {
            var file = fileInput.files[0];
            var textType = /text.*/;

            if (file.type.match(textType)) {
                var reader = new FileReader();

                reader.onload = function(e) {
                    fileDisplayArea.innerText = reader.result;
                }

                reader.readAsText(file);    
            } else {
                fileDisplayArea.innerText = "File not supported!"
            }
        });
}

</script>

Here is the codepen demo

If you have a fixed file to read every time your application load then you can use this code :

<script>
var fileDisplayArea = document.getElementById('fileDisplayArea');
function readTextFile(file)
{
    var rawFile = new XMLHttpRequest();
    rawFile.open("GET", file, false);
    rawFile.onreadystatechange = function ()
    {
        if(rawFile.readyState === 4)
        {
            if(rawFile.status === 200 || rawFile.status == 0)
            {
                var allText = rawFile.responseText;
                fileDisplayArea.innerText = allText 
            }
        }
    }
    rawFile.send(null);
}

readTextFile("file:///C:/your/path/to/file.txt");
</script>

if (window.console && 'function' === typeof window.console.log) {
    window.console.log(o);
}

The accepted answer needs a little clarification. The row will be there if CLR is enabled or disabled. Value will be 1 if enabled, or 0 if disabled.

I use this script to enable on a server, if the option is disabled:

if not exists(
    SELECT value
    FROM sys.configurations
    WHERE name = 'clr enabled'
     and value = 1
)
begin
    exec sp_configure @configname=clr_enabled, @configvalue=1
    reconfigure
end

Use escape characters: "full\\path\\here", "\\" and "\\\\"

For rows you can simply use wc -l file

-l stands for total line

for columns uou can simply use head -1 file | tr ";" "\n" | wc -l

Explanation
head -1 file
Grabbing the first line of your file, which should be the headers, and sending to it to the next cmd through the pipe
| tr ";" "\n"

tr stands for translate.
It will translate all ; characters into a newline character.
In this example ; is your delimiter.

Then it sends data to next command.

wc -l
Counts the total number of lines.

The accepted answer is great, but here's the short answer:

<key>CFBundleIconFiles</key>
<array>
    <string>[email protected]</string>
    <string>icon.png</string>
    <string>Icon-Small.png</string>
    <string>[email protected]</string>
    <string>Default.png</string>
    <string>[email protected]</string>
    <string>icon-72.png</string>
    <string>[email protected]</string>
    <string>Icon-Small-50.png</string>
    <string>[email protected]</string>
    <string>Default-Landscape.png</string>
    <string>[email protected]</string>
    <string>Default-Portrait.png</string>
    <string>[email protected]</string>

New icons below here

    <string>icon-40.png</string>
    <string>[email protected]</string>
    <string>icon-60.png</string>
    <string>[email protected]</string>
    <string>icon-76.png</string>
    <string>[email protected]</string>
</array>

Found this here by searching for "The bundle does not contain an app icon for iPhone / iPod Touch of exactly '120x120' pixels, in .png format." in Google.

Python's sets (and dictionaries) will iterate and print out in some order, but exactly what that order will be is arbitrary, and not guaranteed to remain the same after additions and removals.

Here's an example of a set changing order after a lot of values are added and then removed:

>>> s = set([1,6,8])
>>> print(s)
{8, 1, 6}
>>> s.update(range(10,100000))
>>> for v in range(10, 100000):
    s.remove(v)
>>> print(s)
{1, 6, 8}

This is implementation dependent though, and so you should not rely upon it.

You will need to read the bytes from that File into a byte[] and put that object into your JSONObject.

You should also have a look at the following posts :

• ByteArray in JSON
• Binary Data in JSON String. Something better than Base64
• BSON library for java

Hope this helps.

This worked for me, curly braces are not required.

ng-style="{'background-image':'url(../../../app/img/notification/'+notification.icon+'.png)'}"

notification.icon here is scope variable.

I think some of the above may work but using the get_the_category function seems tricky and may give unexpected results.

I think the most direct and simple way to access the cat ID in a category page is:

$wp_query->query_vars['cat']

Cheers

Dim: you are defining a variable (here: r is a variable of type Range)

Set: you are setting the property (here: set the value of r to Range("A1") - this is not a type, but a value).

You have to use set with objects, if r were a simple type (e.g. int, string), then you would just write:

Dim r As Integer
r=5

The first problem is, that you are trying to return an incorrect value at the end of the main function. C++ standard dictates that the return type of main() is int, but instead you are trying to return the empty set.

The other problem is - at least with g++ - that the compiler deduces the language used from the file suffix. From g++(1):

For any given input file, the file name suffix determines what kind of compilation is done:

file.cc file.cp file.cxx file.cpp file.CPP file.c++ file.C

C ++ source code which must be preprocessed. Note that in .cxx, the last two letters must both be literally x. Likewise, .C refers to a literal capital C.

Fixing these should leave you with a fully working Hello World application, as can be seen from the demo here.

I have also commented **@section Scripts than it's running smoothly. :)

I fixed this issue by deleting and inserting new platform-tools folder inside android sdk folder. But it is caused by my Avast anti virus software. Where I can found my adb.exe in Avast chest. You can also solve by restoring it from Avast chest.

Well then: welcome to the R world ;-)

Here you go

Setting up the code

urls <- c(
    "http://stat.ethz.ch/R-manual/R-devel/library/base/html/connections.html",
    "http://en.wikipedia.org/wiki/Xz",
    "xxxxx"
)
readUrl <- function(url) {
    out <- tryCatch(
        {
            # Just to highlight: if you want to use more than one 
            # R expression in the "try" part then you'll have to 
            # use curly brackets.
            # 'tryCatch()' will return the last evaluated expression 
            # in case the "try" part was completed successfully

            message("This is the 'try' part")

            readLines(con=url, warn=FALSE) 
            # The return value of `readLines()` is the actual value 
            # that will be returned in case there is no condition 
            # (e.g. warning or error). 
            # You don't need to state the return value via `return()` as code 
            # in the "try" part is not wrapped inside a function (unlike that
            # for the condition handlers for warnings and error below)
        },
        error=function(cond) {
            message(paste("URL does not seem to exist:", url))
            message("Here's the original error message:")
            message(cond)
            # Choose a return value in case of error
            return(NA)
        },
        warning=function(cond) {
            message(paste("URL caused a warning:", url))
            message("Here's the original warning message:")
            message(cond)
            # Choose a return value in case of warning
            return(NULL)
        },
        finally={
        # NOTE:
        # Here goes everything that should be executed at the end,
        # regardless of success or error.
        # If you want more than one expression to be executed, then you 
        # need to wrap them in curly brackets ({...}); otherwise you could
        # just have written 'finally=<expression>' 
            message(paste("Processed URL:", url))
            message("Some other message at the end")
        }
    )    
    return(out)
}

Applying the code

> y <- lapply(urls, readUrl)
Processed URL: http://stat.ethz.ch/R-manual/R-devel/library/base/html/connections.html
Some other message at the end
Processed URL: http://en.wikipedia.org/wiki/Xz
Some other message at the end
URL does not seem to exist: xxxxx
Here's the original error message:
cannot open the connection
Processed URL: xxxxx
Some other message at the end
Warning message:
In file(con, "r") : cannot open file 'xxxxx': No such file or directory

Investigating the output

> head(y[[1]])
[1] "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">"      
[2] "<html><head><title>R: Functions to Manipulate Connections</title>"      
[3] "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">"
[4] "<link rel=\"stylesheet\" type=\"text/css\" href=\"R.css\">"             
[5] "</head><body>"                                                          
[6] ""    

> length(y)
[1] 3

> y[[3]]
[1] NA

Additional remarks

tryCatch

tryCatch returns the value associated to executing expr unless there's an error or a warning. In this case, specific return values (see return(NA) above) can be specified by supplying a respective handler function (see arguments error and warning in ?tryCatch). These can be functions that already exist, but you can also define them within tryCatch() (as I did above).

The implications of choosing specific return values of the handler functions

As we've specified that NA should be returned in case of error, the third element in y is NA. If we'd have chosen NULL to be the return value, the length of y would just have been 2 instead of 3 as lapply() will simply "ignore" return values that are NULL. Also note that if you don't specify an explicit return value via return(), the handler functions will return NULL (i.e. in case of an error or a warning condition).

"Undesired" warning message

As warn=FALSE doesn't seem to have any effect, an alternative way to suppress the warning (which in this case isn't really of interest) is to use

suppressWarnings(readLines(con=url))

instead of

readLines(con=url, warn=FALSE)

Multiple expressions

Note that you can also place multiple expressions in the "actual expressions part" (argument expr of tryCatch()) if you wrap them in curly brackets (just like I illustrated in the finally part).

Is it standard behaviour for browsers to only send the checkbox input value data if it is checked upon form submission?

Yes, because otherwise there'd be no solid way of determining if the checkbox was actually checked or not (if it changed the value, the case may exist when your desired value if it were checked would be the same as the one that it was swapped to).

And if no value data is supplied, is the default value always "on"?

Other answers confirm that "on" is the default. However, if you are not interested in the value, just use:

if (isset($_POST['the_checkbox'])){
    // name="the_checkbox" is checked
}

Try using this code:

ALTER TABLE `table name` 
    CHANGE COLUMN `column name` `column name` datatype NOT NULL, 
    ADD PRIMARY KEY (`column name`) ;

You need an scp client. Putty is not one. You can use WinSCP or PSCP. Both are free software.

Just tried on my machine compiling this :

int a = ...;
int b = a * 10;

When disassembling it produces output :

MOV EAX,DWORD PTR SS:[ESP+1C] ; Move a into EAX
LEA EAX,DWORD PTR DS:[EAX+EAX*4] ; Multiply by 5 without shift !
SHL EAX, 1 ; Multiply by 2 using shift

This version is faster than your hand-optimized code with pure shifting and addition.

You really never know what the compiler is going to come up with, so it's better to simply write a normal multiplication and let him optimize the way he wants to, except in very precise cases where you know the compiler cannot optimize.

Use the getTime method to get the time in total milliseconds since 1970-01-01, and subtract those:

var time = new Date().getTime() - new Date("2013-02-20T12:01:04.753Z").getTime();

macOS

I'm running Virtual Box on macOS (previously OS X), using Virtual Box to test IE on Windows, etc.

Go to IE in Virtual Box and access localhost via http://10.0.2.2 for localhost, or http://10.0.2.2:3000 for localhost:3000.

I kept Network settings as NAT, no need for bridge as suggested above in my case. There is no need to edit any config files.

Old question, but I see that this thread was fairly recently active, so I'll go ahead and throw in my two cents:

Pretty much exactly what Mitch said. Assuming proper indexing, you can just go ahead and use square bracket notation as if you were accessing an array. In addition to using the numeric index, though, if your members have specific names, you can often do kind of a simultaneous search/access by typing something like:

var temp = list1["DesiredMember"];

The more you know, right?

VBA is not VB/VB.NET

The correct reference to use is Do..Loop Statement (VBA). Also see the article Excel VBA For, Do While, and Do Until. One way to write this is:

Do While counter < 20
    counter = counter + 1
Loop

(But a For..Next might be more appropriate here.)

Happy coding.

I never heard of this one before.

How is

if (doSomething()) {
} else {
   // blah
}

better than

if (!doSomething()) {
   // blah
}

The later is more clear and concise.

Besides the ! operator can appear in complex conditions such as (!a || b). How do you avoid it then?

Use the ! operator when you need.

Swift 2.0 For 'Not Running' State (Local & Remote Notification)

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {


// Handle notification
if (launchOptions != nil) {

    // For local Notification
    if let localNotificationInfo = launchOptions?[UIApplicationLaunchOptionsLocalNotificationKey] as? UILocalNotification {

        if let something = localNotificationInfo.userInfo!["yourKey"] as? String {
            self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))
        }


    } else

    // For remote Notification
    if let remoteNotification = launchOptions?[UIApplicationLaunchOptionsRemoteNotificationKey] as! [NSObject : AnyObject]? {

        if let something = remoteNotification["yourKey"] as? String {
            self.window!.rootViewController = UINavigationController(rootViewController: YourController(yourMember: something))
        }
    }

}


return true
}

I'm not aware of any particular convention for javascript files as they aren't really unique on the web versus css files or html files or any other type of file like that. There are some "safe" things you can do that make it less likely you will accidentally run into a cross platform issue:

1. Use all lowercase filenames. There are some operating systems that are not case sensitive for filenames and using all lowercase prevents inadvertently using two files that differ only in case that might not work on some operating systems.
2. Don't use spaces in the filename. While this technically can be made to work there are lots of reasons why spaces in filenames can lead to problems.
3. A hyphen is OK for a word separator. If you want to use some sort of separator for multiple words instead of a space or camelcase as in various-scripts.js, a hyphen is a safe and useful and commonly used separator.
4. Think about using version numbers in your filenames. When you want to upgrade your scripts, plan for the effects of browser or CDN caching. The simplest way to use long term caching (for speed and efficiency), but immediate and safe upgrades when you upgrade a JS file is to include a version number in the deployed filename or path (like jQuery does with jquery-1.6.2.js) and then you bump/change that version number whenever you upgrade/change the file. This will guarantee that no page that requests the newer version is ever served the older version from a cache.

The heart of a state machine is the transition table, which takes a state and a symbol (what you're calling an event) to a new state. That's just a two-index array of states. For sanity and type safety, declare the states and symbols as enumerations. I always add a "length" member in some way (language-specific) for checking array bounds. When I've hand-coded FSM's, I format the code in row and column format with whitespace fiddling. The other elements of a state machine are the initial state and the set of accepting states. The most direct implementation of the set of accepting states is an array of booleans indexed by the states. In Java, however, enumerations are classes, and you can specify an argument "accepting" in the declaration for each enumerated value and initialize it in the constructor for the enumeration.

For the machine type, you can write it as a generic class. It would take two type arguments, one for the states and one for the symbols, an array argument for the transition table, a single state for the initial. The only other detail (though it's critical) is that you have to call Enum.ordinal() to get an integer suitable for indexing the transition array, since you there's no syntax for directly declaring an array with a enumeration index (though there ought to be).

To preempt one issue, EnumMap won't work for the transition table, because the key required is a pair of enumeration values, not a single one.

enum State {
    Initial( false ),
    Final( true ),
    Error( false );
    static public final Integer length = 1 + Error.ordinal();

    final boolean accepting;

    State( boolean accepting ) {
        this.accepting = accepting;
    }
}

enum Symbol {
    A, B, C;
    static public final Integer length = 1 + C.ordinal();
}

State transition[][] = {
    //  A               B               C
    {
        State.Initial,  State.Final,    State.Error
    }, {
        State.Final,    State.Initial,  State.Error
    }
};

I just had the same issue on visual studio 2012. For a internet application project. How to resolve “Server Error in '/' Application” error?

Searching for answer I came across this post, but none of these answer help me. Than I found another post here on stackoverflow that has the answer for resolving this issue. Specified argument was out of the range of valid values. Parameter name: site

Your thread's locale is set to one in which the decimal mark is "," instead of ".".

Try using this:

float.Parse("41.00027357629127", CultureInfo.InvariantCulture.NumberFormat);

Note, however, that a float cannot hold that many digits of precision. You would have to use double or Decimal to do so.

I can't get to your google docs file at the moment but there are some issues with your code that I will try to address while answering

Sub stituterangersNEW()
Dim t As Range
Dim x As Range
Dim dify As Boolean
Dim difx As Boolean
Dim time2 As Date
Dim time1 As Date

    'You said time1 doesn't change, so I left it in a singe cell.
    'If that is not correct, you will have to play with this some more.
    time1 = Range("A6").Value

    'Looping through each of our output cells.
    For Each t In Range("B7:E9") 'Change these to match your real ranges.

        'Looping through each departure date/time.
        '(Only one row in your example. This can be adjusted if needed.)
        For Each x In Range("B2:E2") 'Change these to match your real ranges.
            'Check to see if our dep time corresponds to
            'the matching column in our output
            If t.Column = x.Column Then
                'If it does, then check to see what our time value is
                If x > 0 Then
                    time2 = x.Value
                    'Apply the change to the output cell.
                    t.Value = time1 - time2
                    'Exit out of this loop and move to the next output cell.
                    Exit For
                End If
            End If
            'If the columns don't match, or the x value is not a time
            'then we'll move to the next dep time (x)
        Next x
    Next t

End Sub

EDIT

I changed you worksheet to play with (see above for the new Sub). This probably does not suite your needs directly, but hopefully it will demonstrate the conept behind what I think you want to do. Please keep in mind that this code does not follow all the coding best preactices I would recommend (e.g. validating the time is actually a TIME and not some random other data type).

     A                      B                   C                   D                  E
1    LOAD_NUMBER            1                   2                   3                  4
2    DEPARTURE_TIME_DATE    11/12/2011 19:30    11/12/2011 19:30    11/12/2011 19:30    11/12/2011 20:00                
4    Dry_Refrig 7585.1  0   10099.8 16700
6    1/4/2012 19:30

Using the sub I got this output:

    A           B             C             D             E
7   Friday      1272:00:00    1272:00:00    1272:00:00    1271:30:00
8   Saturday    1272:00:00    1272:00:00    1272:00:00    1271:30:00
9   Thursday    1272:00:00    1272:00:00    1272:00:00    1271:30:00

I'm sure you have your reasons, but just in case... you should also consider using a "merge" query instead:

begin
    merge into some_table st
    using (select 'some' name, 'values' value from dual) v
    on (st.name=v.name)
    when matched then update set st.value=v.value
    when not matched then insert (name, value) values (v.name, v.value);
end;

(modified the above to be in the begin/end block; obviously you can run it independantly of the procedure too).

Java is a byte-compiled language targeting a platform called the Java Virtual Machine which is stack-based and has some very fast implementations on many platforms.

The way to check for null is to check for it:

DataRow[] myResultSet = myDataTable.Select("[COLUMN NAME] is null");

You can use and and or in the Select statement.

Or you can use relative units, e.g.

#thing {
    position: absolute;
    width: 50vw;
    right: 25vw;
}

If your Xcode version 3.x , you should use "User Script" With Uncrustify , here this a Example:

#!/bin/sh

echo -n "%%%{PBXSelection}%%%"
$YOURPATH_TO_UNCRUSTIFY/uncrustify -q -c $YOURPATH_TO_UNCRUSTIFY_CONFIG/CodeFormatConfig.cfg -l OC+
echo -n "%%%{PBXSelection}%%%"

add above to your Xcode "User Script".

if Xcode version 4.x , I think you should read this blog : Code Formatting in Xcode 4,

In this way , used the "Apple Services" , but it's not good enough , cause too slow experience, does anyone has the same thing ?

why apple drop "user script" .... xD

for item in do_not_use_list_as_a_name[1:-1]:
    #...do whatever

The best solution I found when dealing with Typescript classes and json objects: add a constructor in your Typescript class that takes the json data as parameter. In that constructor you extend your json object with jQuery, like this: $.extend( this, jsonData). $.extend allows keeping the javascript prototypes while adding the json object's properties.

export class Foo
{
    Name: string;
    getName(): string { return this.Name };

    constructor( jsonFoo: any )
    {
        $.extend( this, jsonFoo);
    }
}

In your ajax callback, translate your jsons in a your typescript object like this:

onNewFoo( jsonFoos : any[] )
{
  let receviedFoos = $.map( jsonFoos, (json) => { return new Foo( json ); } );

  // then call a method:
  let firstFooName = receviedFoos[0].GetName();
}

If you don't add the constructor, juste call in your ajax callback:

let newFoo = new Foo();
$.extend( newFoo, jsonData);
let name = newFoo.GetName()

...but the constructor will be useful if you want to convert the children json object too. See my detailed answer here.

The variable in the for loop is an integer sequence, and so eventually you do this:

> y=as.integer(60000)*as.integer(60000)
Warning message:
In as.integer(60000) * as.integer(60000) : NAs produced by integer overflow

whereas in the while loop you are creating a floating point number.

Its also the reason these things are different:

> seq(0,2,1)
[1] 0 1 2
> seq(0,2)
[1] 0 1 2

Don't believe me?

> identical(seq(0,2),seq(0,2,1))
[1] FALSE

because:

> is.integer(seq(0,2))
[1] TRUE
> is.integer(seq(0,2,1))
[1] FALSE

My guess is that the buttons you created are not yet on the page by the time you bind the button. Either bind each button in the $.getJSON function, or use a dynamic binding method like:

$('body').on('click', 'button', function() {
    ...
});

Note you probably don't want to do this on the 'body' tag, but instead wrap the buttons in another div or something and call on on it.

jQuery On Method

This is for create a text file

For i = 1 to 10
    createFile( i )
Next

Public Sub createFile(a)

    Dim fso,MyFile
    filePath = "C:\file_name" & a & ".txt"
    Set fso = CreateObject("Scripting.FileSystemObject")
    Set MyFile = fso.CreateTextFile(filePath)
    MyFile.WriteLine("This is a separate file")
    MyFile.close

End Sub

And this for read a text file

Dim fso
Set fso = CreateObject("Scripting.FileSystemObject")
Set dict = CreateObject("Scripting.Dictionary")
Set file = fso.OpenTextFile ("test.txt", 1)
row = 0
Do Until file.AtEndOfStream
  line = file.Readline
  dict.Add row, line
  row = row + 1
Loop

file.Close

For Each line in dict.Items
  WScript.Echo line
  WScript.Sleep 1000
Next

var values = {};
$('td input').each(function(){
  values[$(this).attr('name')] = $(this).val();
}

Haven't tested, but that should do it...

For future visitors - use this for range: ($A$1:$A$10)

Example
=COUNTIF($G$6:$G$9;J6)>0

async() => {
let body = await model.find().or([
  { name: 'something'},
  { nickname: 'somethang'}
]).exec();
console.log(body);
}
/* Gives an array of the searched query!
returns [] if not found */

This did it for me:

python -m pip install --upgrade pip

Environment: OSX && Python installed via brew

If you want it visually formatted to two decimals as a string (for output) use toFixed():

var priceString = someValue.toFixed(2);

The answer by @David has two problems:

1. It leaves the result as a floating point number, and consequently holds the possibility of displaying a particular result with many decimal places, e.g. 134.1999999999 instead of "134.20".

2. If your value is an integer or rounds to one tenth, you will not see the additional decimal value:

   var n = 1.099;
   (Math.round( n * 100 )/100 ).toString() //-> "1.1"
   n.toFixed(2)                            //-> "1.10"
   
   var n = 3;
   (Math.round( n * 100 )/100 ).toString() //-> "3"
   n.toFixed(2)                            //-> "3.00"
   

And, as you can see above, using toFixed() is also far easier to type. ;)

Here is a simple functional approach. Specify sort order using array. Prepend minus to specify descending order.

var homes = [
    {"h_id":"3", "city":"Dallas", "state":"TX","zip":"75201","price":"162500"},
    {"h_id":"4","city":"Bevery Hills", "state":"CA", "zip":"90210", "price":"319250"},
    {"h_id":"6", "city":"Dallas", "state":"TX", "zip":"75000", "price":"556699"},
    {"h_id":"5", "city":"New York", "state":"NY", "zip":"00010", "price":"962500"}
    ];

homes.sort(fieldSorter(['city', '-price']));
// homes.sort(fieldSorter(['zip', '-state', 'price'])); // alternative

function fieldSorter(fields) {
    return function (a, b) {
        return fields
            .map(function (o) {
                var dir = 1;
                if (o[0] === '-') {
                   dir = -1;
                   o=o.substring(1);
                }
                if (a[o] > b[o]) return dir;
                if (a[o] < b[o]) return -(dir);
                return 0;
            })
            .reduce(function firstNonZeroValue (p,n) {
                return p ? p : n;
            }, 0);
    };
}

Edit: in ES6 it's even shorter!

"use strict";_x000D_
const fieldSorter = (fields) => (a, b) => fields.map(o => {_x000D_
    let dir = 1;_x000D_
    if (o[0] === '-') { dir = -1; o=o.substring(1); }_x000D_
    return a[o] > b[o] ? dir : a[o] < b[o] ? -(dir) : 0;_x000D_
}).reduce((p, n) => p ? p : n, 0);_x000D_
_x000D_
const homes = [{"h_id":"3", "city":"Dallas", "state":"TX","zip":"75201","price":162500},     {"h_id":"4","city":"Bevery Hills", "state":"CA", "zip":"90210", "price":319250},{"h_id":"6", "city":"Dallas", "state":"TX", "zip":"75000", "price":556699},{"h_id":"5", "city":"New York", "state":"NY", "zip":"00010", "price":962500}];_x000D_
const sortedHomes = homes.sort(fieldSorter(['state', '-price']));_x000D_
_x000D_
document.write('<pre>' + JSON.stringify(sortedHomes, null, '\t') + '</pre>')

I think you missed a equal sign at:

Cursor c = ourDatabase.query(DATABASE_TABLE, column, KEY_ROWID + "" + l, null, null, null, null);  

Change to:

Cursor c = ourDatabase.query(DATABASE_TABLE, column, KEY_ROWID + " = " + l, null, null, null, null); 

I had a unique key, just had to pass it as a prop like this:

<CompName key={msg._id} message={msg} />

This page was helpful:

https://reactjs.org/docs/lists-and-keys.html#keys

I had the same problem. The reason is quite simple. I installed 2 mysql server. One from Mac Port, the other from downloaded package. So I just follow the instruction here and uninstalled the one from package. How do you uninstall MySQL from Mac OS X? After that, mysql is working well.

This behavior is explicitly documented in String.split(String regex) (emphasis mine):

This method works as if by invoking the two-argument split method with the given expression and a limit argument of zero. Trailing empty strings are therefore not included in the resulting array.

If you want those trailing empty strings included, you need to use String.split(String regex, int limit) with a negative value for the second parameter (limit):

String[] array = values.split("\\|", -1);

MDN suggests that there's a much cleaner way of doing this in modern browsers:

// Assuming we're listening for e.g. a 'change' event on `element`

// Create a new 'change' event
var event = new Event('change');

// Dispatch it.
element.dispatchEvent(event);

You have to use br when using echo , like this :

echo "Thanks for your email" ."<br>". "Your orders details are below:"

and it will work properly

Nested loop method for removing duplicates in array and preserving original order of elements.

var array = [1, 3, 2, 1, [5], 2, [4]]; // INPUT

var element = 0;
var decrement = array.length - 1;
while(element < array.length) {
  while(element < decrement) {
    if (array[element] === array[decrement]) {
      array.splice(decrement, 1);
      decrement--;
    } else {
      decrement--;
    }
  }
  decrement = array.length - 1;
  element++;
}

console.log(array);// [1, 3, 2, [5], [4]]

Explanation: Inner loop compares first element of array with all other elements starting with element at highest index. Decrementing towards the first element a duplicate is spliced from the array.

When inner loop is finished the outer loop increments to the next element for comparison and resets the new length of the array.

One other option which is arguably more intuitive is:

SELECT [name] 
FROM sys.columns 
WHERE object_id = OBJECT_ID('[yourSchemaType].[yourTableName]') 

This gives you all your column names in a single column. If you care about other metadata, you can change edit the SELECT STATEMENT TO SELECT *.

This question might still be visited often enough that it's worth offering an addendum to Mr Kassies' answer. The dict built-in class can be sub-classed so that a default is returned for 'missing' keys. This mechanism works well for pandas. But see below.

In this way it's possible to avoid key errors.

>>> import pandas as pd
>>> data = { 'ID': [ 101, 201, 301, 401 ] }
>>> df = pd.DataFrame(data)
>>> class SurnameMap(dict):
...     def __missing__(self, key):
...         return ''
...     
>>> surnamemap = SurnameMap()
>>> surnamemap[101] = 'Mohanty'
>>> surnamemap[301] = 'Drake'
>>> df['Surname'] = df['ID'].apply(lambda x: surnamemap[x])
>>> df
    ID  Surname
0  101  Mohanty
1  201         
2  301    Drake
3  401         

The same thing can be done more simply in the following way. The use of the 'default' argument for the get method of a dict object makes it unnecessary to subclass a dict.

>>> import pandas as pd
>>> data = { 'ID': [ 101, 201, 301, 401 ] }
>>> df = pd.DataFrame(data)
>>> surnamemap = {}
>>> surnamemap[101] = 'Mohanty'
>>> surnamemap[301] = 'Drake'
>>> df['Surname'] = df['ID'].apply(lambda x: surnamemap.get(x, ''))
>>> df
    ID  Surname
0  101  Mohanty
1  201         
2  301    Drake
3  401         

If you're targeting modern css3 compliant browsers (Browser support: https://caniuse.com/#feat=css-sticky) you can use position:sticky, which doesn't require JS and won't break the table layout miss-aligning th and td of the same column. Nor does it require fixed column width to work properly.

Example for a single header row:

thead th
{
    position: sticky;
    top: 0px;
}

For theads with 1 or 2 rows, you can use something like this:

thead > :last-child th
{
    position: sticky;
    top: 30px; /* This is for all the the "th" elements in the second row, (in this casa is the last child element into the thead) */
}

thead > :first-child th
{
    position: sticky;
    top: 0px; /* This is for all the the "th" elements in the first child row */
}

You might need to play a bit with the top property of the last child changing the number of pixels to match the height of the first row (+ the margin + the border + the padding, if any), so the second row sticks just down bellow the first one.

Also both solutions work even if you have more than one table in the same page: the th element of each one starts to be sticky when its top position is the one indicated into the css definition and just disappear when all the table scrolls down. So if there are more tables all work beautifully the same way.

Why to use last-child before and first-child after in the css?

Because css rules are rendered by the browser in the same order as you write them into the css file and because of this if you have just 1 row into the thead element the first row is simultaneously the last row too and the first-child rule need to override the last-child one. If not you will have an offset of the row 30 px from the top margin which I suppose you don't want to.

A known problem of position: sticky is that it doesn't work on thead elements or table rows: you must target th elements. Hopping this issue will be solved on future browser versions.

You can map another entity based on this class (you should use entity-name in order to distinct the two) and the second one will be kind of dto (dont forget that dto has design issues ). you should define the second one as readonly and give it a good name in order to be clear that this is not a regular entity. by the way select only few columns is called projection , so google with it will be easier.

alternative - you can create named query with the list of fields that you need (you put them in the select ) or use criteria with projection

You can set the Main-Class attribute in the jar file's manifest to point to which file you want to run automatically.

function ajax_form(selector, obj)
{

    var form = document.querySelectorAll(selector);

    if(obj)
    {

        var before = obj.before ? obj.before : function(){return true;};

        var $success = obj.success ? obj.success: function(){return true;};

        for (var i = 0; i < form.length; i++)
        {

            var url = form[i].hasAttribute('action') ? form[i].getAttribute('action') : window.location;

            var $form = form[i];

            form[i].submit = function()
            {

                var xhttp = new XMLHttpRequest();

                xhttp.open("POST", url, true);

                var FD = new FormData($form);

                /** prevent submiting twice */
                if($form.disable === true)

                    return this;

                $form.disable = true;

                if(before() === false)

                    return;

                xhttp.addEventListener('load', function()
                {

                    $form.disable = false;

                    return $success(JSON.parse(this.response));

                });

                xhttp.send(FD);

            }
        }
    }

    return form;
}

Didn't check how it works. You can also bind(this) so it will work like jquery ajaxForm

use it like:

ajax_form('form',
{
    before: function()
    {
        alert('submiting form');
        // if return false form shouldn't be submitted
    },
    success:function(data)
    {
        console.log(data)
    }
}
)[0].submit();

it return nodes so you can do something like submit i above example

so far from perfection but it suppose to work, you should add error handling or remove disable condition

Another possible problem is a missing builder (it will prevent from your .class file from being built).

Check that your .project file has the following lines

<buildSpec>
  <buildCommand>
    <name>org.eclipse.jdt.core.javabuilder</name>
    <arguments>
    </arguments>
  </buildCommand>
</buildSpec>
<natures>
  <nature>org.eclipse.jdt.core.javanature</nature>
</natures>

Use the sizing utility classes...

• h-50 = height 50%
• h-100 = height 100%

http://www.codeply.com/go/Y3nG0io2uE

 <div class="container">
        <div class="row">
            <div class="col-md-8 col-lg-6 B">
                <div class="card card-inverse card-primary">
                    <img src="http://lorempicsum.com/rio/800/500/4" class="img-fluid" alt="Responsive image">
                </div>
            </div>
            <div class="col-md-4 col-lg-3 G">
                <div class="row h-100">
                    <div class="col-md-6 col-lg-6 B h-50 pb-3">
                        <div class="card card-inverse card-success h-100">

                        </div>
                    </div>
                    <div class="col-md-6 col-lg-6 B h-50 pb-3">
                        <div class="card card-inverse bg-success h-100">

                        </div>
                    </div>
                    <div class="col-md-12 h-50">
                        <div class="card card-inverse bg-danger h-100">

                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>

Or, for an unknown number of child columns, use flexbox and the cols will fill height. See the d-flex flex-column on the row, and h-100 on the child cols.

<div class="container">
    <div class="row">
        <div class="col-md-8 col-lg-6 B">
            <div class="card card-inverse card-primary">
                <img src="http://lorempicsum.com/rio/800/500/4" class="img-fluid" alt="Responsive image">
            </div>
        </div>
        <div class="col-md-4 col-lg-3 G ">
            <div class="row d-flex flex-column h-100">
                <div class="col-md-6 col-lg-6 B h-100">
                    <div class="card bg-success h-100">

                    </div>
                </div>
                <div class="col-md-6 col-lg-6 B h-100">
                    <div class="card bg-success h-100">

                    </div>
                </div>
                <div class="col-md-12 h-100">
                    <div class="card bg-danger h-100">

                    </div>
                </div>
            </div>
        </div>
    </div>
</div>

https://www.codeply.com/go/tgzFAH8vaW

It all depends, personally I prefer the traditional syntax with echos and plenty of indentations, since it's just so much easier to read.

<?php
    if($something){
        doThis();
    }else{
        echo '<h1>Title</h1>
            <p>This is a paragraph</p>
            <p>and another paragraph</p>';
    }
?>

I agree alt syntax is cleaner with the different end clauses, but I really have a hard time dealing with them without help from text-editor highlighting, and I'm just not used to seeing "condensed" code like this:

<?php if( $this->isEnabledViewSwitcher() ): ?>
<p class="view-mode">
    <?php $_modes = $this->getModes(); ?>
    <?php if($_modes && count($_modes)>1): ?>
    <label><?php echo $this->__('View as') ?>:</label>
    <?php foreach ($this->getModes() as $_code=>$_label): ?>
        <?php if($this->isModeActive($_code)): ?>
            <strong title="<?php echo $_label ?>" class="<?php echo strtolower($_code); ?>"><?php echo $_label ?></strong>&nbsp;
        <?php else: ?>
            <a href="<?php echo $this->getModeUrl($_code) ?>" title="<?php echo $_label ?>" class="<?php echo strtolower($_code); ?>"><?php echo $_label ?></a>&nbsp;
        <?php endif; ?>
    <?php endforeach; ?>
    <?php endif; ?>
</p>
<?php endif; ?>

int countRow = dt.Rows.Count;
int countCol = dt.Columns.Count;

for (int iCol = 0; iCol < countCol; iCol++)
{
     DataColumn col = dt.Columns[iCol];

     for (int iRow = 0; iRow < countRow; iRow++)
     {
         object cell = dt.Rows[iRow].ItemArray[iCol];

     }
}

When the LinkButton Enabled property is false it just renders a standard hyperlink. When you right click any disabled hyperlink you don't get the option to open in anything.

try

lbnkVidTtile1.Enabled = true;

I'm sorry if I misunderstood. Could I just make sure that you understand the purpose of a LinkButton? It is to give the appearance of a HyperLink but the behaviour of a Button. This means that it will have an anchor tag, but there is JavaScript wired up that performs a PostBack to the page. If you want to link to another page then it is recommended here that you use a standard HyperLink control.

SendRedirect() will search the content between the servers. it is slow because it has to intimate the browser by sending the URL of the content. then browser will create a new request for the content within the same server or in another one.

RquestDispatcher is for searching the content within the server i think. its the server side process and it is faster compare to the SendRedirect() method. but the thing is that it will not intimate the browser in which server it is searching the required date or content, neither it will not ask the browser to change the URL in URL tab. so it causes little inconvenience to the user.

Please take a look here:

• RS-232 for Linux and Windows ¹⁾
• Windows Serial Port Programming ²⁾
• Using the Serial Ports in Visual C++ ³⁾
• Serial Communication in Windows

¹⁾ You can use this with Windows (incl. MinGW) as well as Linux. Alternative you can only use the code as an example.

²⁾ Step-by-step tutorial how to use serial ports on windows

³⁾ You can use this literally on MinGW

Here's some very, very simple code (without any error handling or settings):

#include <windows.h>

/* ... */


// Open serial port
HANDLE serialHandle;

serialHandle = CreateFile("\\\\.\\COM1", GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);

// Do some basic settings
DCB serialParams = { 0 };
serialParams.DCBlength = sizeof(serialParams);

GetCommState(serialHandle, &serialParams);
serialParams.BaudRate = baudrate;
serialParams.ByteSize = byteSize;
serialParams.StopBits = stopBits;
serialParams.Parity = parity;
SetCommState(serialHandle, &serialParams);

// Set timeouts
COMMTIMEOUTS timeout = { 0 };
timeout.ReadIntervalTimeout = 50;
timeout.ReadTotalTimeoutConstant = 50;
timeout.ReadTotalTimeoutMultiplier = 50;
timeout.WriteTotalTimeoutConstant = 50;
timeout.WriteTotalTimeoutMultiplier = 10;

SetCommTimeouts(serialHandle, &timeout);

Now you can use WriteFile() / ReadFile() to write / read bytes. Don't forget to close your connection:

CloseHandle(serialHandle);

You just have to make up your mind on how many decimal digits you actually want - can't have the cake and eat it too :-)

Numerical errors accumulate with every further operation and if you don't cut it off early it's just going to grow. Numerical libraries which present results that look clean simply cut off the last 2 digits at every step, numerical co-processors also have a "normal" and "full" lenght for the same reason. Cuf-offs are cheap for a processor but very expensive for you in a script (multiplying and dividing and using pov(...)). Good math lib would provide floor(x,n) to do the cut-off for you.

So at the very least you should make global var/constant with pov(10,n) - meaning that you decided on the precision you need :-) Then do:

Math.floor(x*PREC_LIM)/PREC_LIM  // floor - you are cutting off, not rounding

You could also keep doing math and only cut-off at the end - assuming that you are only displaying and not doing if-s with results. If you can do that, then .toFixed(...) might be more efficient.

If you are doing if-s/comparisons and don't want to cut of then you also need a small constant, usually called eps, which is one decimal place higher than max expected error. Say that your cut-off is last two decimals - then your eps has 1 at the 3rd place from the last (3rd least significant) and you can use it to compare whether the result is within eps range of expected (0.02 -eps < 0.1*0.2 < 0.02 +eps).

In C# 8.0 and later you can use [^5..] to get the last five characters combined with a ? operator to avoid a potential ArgumentOutOfRangeException.

string input1 = "0123456789";
string input2 = "0123";
Console.WriteLine(input1.Length >= 5 ? input1[^5..] : input1); //returns 56789
Console.WriteLine(input2.Length >= 5 ? input2[^5..] : input2); //returns 0123

index-from-end-operator and range-operator

I've made some string functions in order to split values, by using less pointers as I could because this code is intended to run on PIC18F processors. Those processors does not handle really good with pointers when you have few free RAM available:

#include <stdio.h>
#include <string.h>

char POSTREQ[255] = "pwd=123456&apply=Apply&d1=88&d2=100&pwr=1&mpx=Internal&stmo=Stereo&proc=Processor&cmp=Compressor&ip1=192&ip2=168&ip3=10&ip4=131&gw1=192&gw2=168&gw3=10&gw4=192&pt=80&lic=&A=A";

int findchar(char *string, int Start, char C) {
    while((string[Start] != 0)) { Start++; if(string[Start] == C) return Start; }
    return -1;
}

int findcharn(char *string, int Times, char C) {
   int i = 0, pos = 0, fnd = 0;

    while(i < Times) {
       fnd = findchar(string, pos, C);
        if(fnd < 0) return -1;
        if(fnd > 0) pos = fnd;
       i++;
   }
   return fnd;
}

void mid(char *in, char *out, int start, int end) {
    int i = 0;
    int size = end - start;

    for(i = 0; i < size; i++){
        out[i] = in[start + i + 1];
    }
    out[size] = 0;
}

void getvalue(char *out, int index) {
    mid(POSTREQ, out, findcharn(POSTREQ, index, '='), (findcharn(POSTREQ, index, '&') - 1));
}

void main() {
   char n_pwd[7];
   char n_d1[7];

   getvalue(n_d1, 1);

   printf("Value: %s\n", n_d1);
} 

As of Java 7 (and Android API level 19):

System.lineSeparator()

Documentation: Java Platform SE 7

For older versions of Java, use:

System.getProperty("line.separator");

See https://java.sun.com/docs/books/tutorial/essential/environment/sysprop.html for other properties.

A small usage of np.nan ! = np.nan

s[s==s]
Out[953]: 
0    1.0
1    2.0
2    3.0
3    4.0
5    5.0
dtype: float64

More Info

np.nan == np.nan
Out[954]: False

I changed the DrawerLayout a bit to get the events and be able to consume and event, such as if you want to use the actionToggle as back if you are in detail view:

public class ListenableDrawerLayout extends DrawerLayout {

    private OnToggleButtonClickedListener mOnToggleButtonClickedListener;
    private boolean mManualCall;

    public ListenableDrawerLayout(Context context) {
        super(context);
    }

    public ListenableDrawerLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public ListenableDrawerLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    /**
     * Sets the listener for the toggle button
     *
     * @param mOnToggleButtonClickedListener
     */
    public void setOnToggleButtonClickedListener(OnToggleButtonClickedListener mOnToggleButtonClickedListener) {
        this.mOnToggleButtonClickedListener = mOnToggleButtonClickedListener;
    }

    /**
     * Opens the navigation drawer manually from code<br>
     * <b>NOTE: </b>Use this function instead of the normal openDrawer method
     *
     * @param drawerView
     */
    public void openDrawerManual(View drawerView) {
        mManualCall = true;
        openDrawer(drawerView);
    }

    /**
     * Closes the navigation drawer manually from code<br>
     * <b>NOTE: </b>Use this function instead of the normal closeDrawer method
     *
     * @param drawerView
     */
    public void closeDrawerManual(View drawerView) {
        mManualCall = true;
        closeDrawer(drawerView);
    }


    @Override
    public void openDrawer(View drawerView) {

        // Check for listener and for not manual open
        if (!mManualCall && mOnToggleButtonClickedListener != null) {

            // Notify the listener and behave on its reaction
            if (mOnToggleButtonClickedListener.toggleOpenDrawer()) {
                return;
            }

        }
        // Manual call done
        mManualCall = false;

        // Let the drawer layout to its stuff
        super.openDrawer(drawerView);
    }

    @Override
    public void closeDrawer(View drawerView) {

        // Check for listener and for not manual close
        if (!mManualCall && mOnToggleButtonClickedListener != null) {

            // Notify the listener and behave on its reaction
            if (mOnToggleButtonClickedListener.toggleCloseDrawer()) {
                return;
            }

        }
        // Manual call done
        mManualCall = false;

        // Let the drawer layout to its stuff
        super.closeDrawer(drawerView);
    }

    /**
     * Interface for toggle button callbacks
     */
    public static interface OnToggleButtonClickedListener {

        /**
         * The ActionBarDrawerToggle has been pressed in order to open the drawer
         *
         * @return true if we want to consume the event, false if we want the normal behaviour
         */
        public boolean toggleOpenDrawer();

        /**
         * The ActionBarDrawerToggle has been pressed in order to close the drawer
         *
         * @return true if we want to consume the event, false if we want the normal behaviour
         */
        public boolean toggleCloseDrawer();
    }

}

If you are using gradle build system, follow these steps:

1. put jar files inside respective libs folder of your android app. You will generally find it at Project > app > libs. If libs folder is missing, create one.

2. add this to your build.gradle file your app. (Not to your Project's build.gradle)

   dependencies {
       compile fileTree(dir: 'libs', include: '*.jar')
       // other dependencies
   }
   

   This will include all your jar files available in libs folder.

If don't want to include all jar files, then you can add it individually.

compile fileTree(dir: 'libs', include: 'file.jar')

Note: This does not directly answer your question. This is deliberate.

A List Apart has an excellent CSS Positioning 101 article that is worth reading ... more than once. It has numerous examples that include, amongst others, your specific problem. I highly recommend it.

Converting clob to string:

Clob clob=rs.getClob(2);      
String str=(String)clob.getSubString(1,(int)clob.length());      
System.out.println("Clob Data is : "+str);

How about SymPy? Their solver looks like what you need. Have a look at their source code if you want to build the library yourself…

You can check out my small free utility for service create\edit\delete operations. Here is create example:

Go to Service -> Modify -> Create

Executable file (google drive): [Download]

Source code: [Download]

Blog post: [BlogLink]

Service editor class: WinServiceUtils.cs

As far as I know python will compile all modules you "import". However python will NOT compile a python script run using: "python script.py" (it will however compile any modules that the script imports).

The real questions is why you don't want python to compile the modules? You could probably automate a way of cleaning these up if they are getting in the way.

You are missing a comma in your statement.

Try this:

data[data[, "Var1"]>10, ]

Or:

data[data$Var1>10, ]

Or:

subset(data, Var1>10)

As an example, try it on the built-in dataset, mtcars

data(mtcars)

mtcars[mtcars[, "mpg"]>25, ]

                mpg cyl  disp  hp drat    wt  qsec vs am gear carb
Fiat 128       32.4   4  78.7  66 4.08 2.200 19.47  1  1    4    1
Honda Civic    30.4   4  75.7  52 4.93 1.615 18.52  1  1    4    2
Toyota Corolla 33.9   4  71.1  65 4.22 1.835 19.90  1  1    4    1
Fiat X1-9      27.3   4  79.0  66 4.08 1.935 18.90  1  1    4    1
Porsche 914-2  26.0   4 120.3  91 4.43 2.140 16.70  0  1    5    2
Lotus Europa   30.4   4  95.1 113 3.77 1.513 16.90  1  1    5    2


mtcars[mtcars$mpg>25, ]

                mpg cyl  disp  hp drat    wt  qsec vs am gear carb
Fiat 128       32.4   4  78.7  66 4.08 2.200 19.47  1  1    4    1
Honda Civic    30.4   4  75.7  52 4.93 1.615 18.52  1  1    4    2
Toyota Corolla 33.9   4  71.1  65 4.22 1.835 19.90  1  1    4    1
Fiat X1-9      27.3   4  79.0  66 4.08 1.935 18.90  1  1    4    1
Porsche 914-2  26.0   4 120.3  91 4.43 2.140 16.70  0  1    5    2
Lotus Europa   30.4   4  95.1 113 3.77 1.513 16.90  1  1    5    2

subset(mtcars, mpg>25)

                mpg cyl  disp  hp drat    wt  qsec vs am gear carb
Fiat 128       32.4   4  78.7  66 4.08 2.200 19.47  1  1    4    1
Honda Civic    30.4   4  75.7  52 4.93 1.615 18.52  1  1    4    2
Toyota Corolla 33.9   4  71.1  65 4.22 1.835 19.90  1  1    4    1
Fiat X1-9      27.3   4  79.0  66 4.08 1.935 18.90  1  1    4    1
Porsche 914-2  26.0   4 120.3  91 4.43 2.140 16.70  0  1    5    2
Lotus Europa   30.4   4  95.1 113 3.77 1.513 16.90  1  1    5    2

Maybe you need to active you api keys in the web console, I just saw that mine were inactive for some reason...

My code :

$("input.numeric").keypress(function(e) { /* pour les champs qui ne prennent que du numeric en entrée */          
            var key = e.charCode || e.keyCode || 0;                     
            var keychar = String.fromCharCode(key);
            /*alert("keychar:"+keychar + " \n charCode:" + e.charCode + " \n key:" +key);*/
            if (  ((key == 8 || key == 9 || key == 46 || key == 35 || key == 36 || (key >= 37 && key <= 40)) && e.charCode==0) /* backspace, end, begin, top, bottom, right, left, del, tab */
                    || (key >= 48 && key <= 57) ) { /* 0-9 */
                return;
            } else {
                e.preventDefault();
            }
        });

This one I implemented for my website , If some one got more no's of menu item and longer search bar can use this

Here is the code

       <style>
        .navbar-inverse .navbar-nav > li > a {
            color: white !important;
        }

            .navbar-inverse .navbar-nav > li > a:hover {
                text-decoration: underline;
            }

        .navbar-collapse ul li {
            padding-top: 0px;
            padding-bottom: 0px;
        }

            .navbar-collapse ul li a {
                padding-top: 0px;
                padding-bottom: 0px;
            }

        .navbar-brand img {
            width: 200px;
            height: 40px;
        }

        .navbar-inverse {
            background-color: #3A1B37;
        }
    </style>
   <div class="navbar navbar-inverse navbar-fixed-top">
        <div class="container">
            <div class="navbar-header">
                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                    <span class="icon-bar"></span>
                </button>
                <a class="navbar-brand" runat="server" href="~/">
                    <img src="http://placehold.it/200x40/3A1B37/ffffff/?text=Apllicatin"></a>
                <div class="col-md-6 col-sm-8 col-xs-11 navbar-left">
                    <div class="navbar-form " role="search">
                        <div class="input-group">
                            <input type="text" class="form-control" placeholder="Search" name="srch-term" id="srch-term" style="max-width: 100%; width: 100%;">
                            <div class="input-group-btn">
                                <button class="btn btn-default" style="background: rgb(72, 166, 72);" type="submit"><i class="glyphicon glyphicon-search"></i></button>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div class="navbar-collapse collapse">
                <ul class="nav navbar-nav">
                    <li class="navbar-brand  visible-md visible-lg visible-sm" style="visibility: hidden;" runat="server">
                        <img src="http://placehold.it/200x40/3A1B37/ffffff/?text=Apllicatin" />
                    </li>
                    <li><a runat="server" href="~/">Home</a></li>
                    <li><a runat="server" href="~/About">About</a></li>
                    <li><a runat="server" href="~/Contact">Contact</a></li>
                    <li><a runat="server" href="~/">Somthing</a></li>
                    <li><a runat="server" href="~/">Somthing</a></li>
                </ul>
                <ul class="nav navbar-nav navbar-right">
                    <li><a runat="server" href="~/Account/Register">Register</a></li>
                    <li><a runat="server" href="~/Account/Login">Log in</a></li>
                </ul> </div>

        </div>
    </div>

There's a setting in Safari under "Tabs" that labeled Open pages in tabs instead of windows: with a drop down with a few options. I'm thinking yours may be set to Always. Bottom line is you can't rely on a browser opening a new window.

A double primitive in Java can never be null. It will be initialized to 0.0 if no value has been given for it (except when declaring a local double variable and not assigning a value, but this will produce a compile-time error).

More info on default primitive values here.

key 13 keycode is for ENTER key.

Use View.getLocationOnScreen() and/or getLocationInWindow().