Like others have stated, you first need to have the CORS configuration in your S3 bucket:

<CORSConfiguration>
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>HEAD</AllowedMethod> <!-- Add this -->
    <MaxAgeSeconds>3000</MaxAgeSeconds>
    <AllowedHeader>Authorization</AllowedHeader>
</CORSRule>
</CORSConfiguration>

But in my case after doing that, it was still not working. I was using Chrome (probably the same problem with other browsers).

The problem was that Chrome was caching the image with the headers (not containing the CORS data), so no matter what I tried to change in AWS, I would not see my CORS headers.

After clearing Chrome cache and reloading the page, the image had the expected CORS Headers

You can use setOnClickListener like this in Kotlin

button.setOnClickListener(View.OnClickListener {        
       //code
})

What if you do this (as was suggested earlier):

new_time = dfs['XYF']['TimeUS'].astype(float)
new_time_F = new_time / 1000000

I struggled for a couple of days to find anything that would work for me as was passing multiple arrays of ids and returning a blob. Turns out if using .NET CORE I'm using 2.1, you need to use [FromBody] and as can only use once you need to create a viewmodel to hold the data.

Wrap up content like below,

var params = {
            "IDs": IDs,
            "ID2s": IDs2,
            "id": 1
        };

In my case I had already json'd the arrays and passed the result to the function

var IDs = JsonConvert.SerializeObject(Model.Select(s => s.ID).ToArray());

Then call the XMLHttpRequest POST and stringify the object

var ajax = new XMLHttpRequest();
ajax.open("POST", '@Url.Action("MyAction", "MyController")', true);
ajax.responseType = "blob";
ajax.setRequestHeader("Content-Type", "application/json;charset=UTF-8");           
ajax.onreadystatechange = function () {
    if (this.readyState == 4) {
       var blob = new Blob([this.response], { type: "application/octet-stream" });
       saveAs(blob, "filename.zip");
    }
};

ajax.send(JSON.stringify(params));

Then have a model like this

public class MyModel
{
    public int[] IDs { get; set; }
    public int[] ID2s { get; set; }
    public int id { get; set; }
}

Then pass in Action like

public async Task<IActionResult> MyAction([FromBody] MyModel model)

Use this add-on if your returning a file

<script src="https://cdnjs.cloudflare.com/ajax/libs/FileSaver.js/1.3.3/FileSaver.min.js"></script>

I had similar issues when using 'java' at the beginning of the package name, e.g. java.jem.pc

Check your console output, I was receiving:

Exception in thread "main" java.lang.SecurityException: Prohibited package name: java.jem.pc

When we want to copy an array using the assignment operator ( = ) it doesn't create a copy it merely copies the pointer/reference to the array. For example:

const oldArr = [1,2,3];_x000D_
_x000D_
const newArr = oldArr;  // now oldArr points to the same place in memory _x000D_
_x000D_
console.log(oldArr === newArr);  // Points to the same place in memory thus is true_x000D_
_x000D_
const copy = [1,2,3];_x000D_
_x000D_
console.log(copy === newArr);  // Doesn't point to the same place in memory and thus is false

Often when we transform data we want to keep our initial datastructure (e.g. Array) intact. We do this by making a exact copy of our array so this one can be transformed while the initial one stays intact.

Ways of copying an array:

const oldArr = [1,2,3];_x000D_
_x000D_
// Uses the spread operator to spread out old values into the new array literal_x000D_
const newArr1 = [...oldArr];_x000D_
_x000D_
// Slice with no arguments returns the newly copied Array_x000D_
const newArr2 = oldArr.slice();_x000D_
_x000D_
// Map applies the callback to every element in the array and returns a new array_x000D_
const newArr3 = oldArr.map((el) => el);_x000D_
_x000D_
// Concat is used to merge arrays and returns a new array. Concat with no args copies an array_x000D_
const newArr4 = oldArr.concat();_x000D_
_x000D_
// Object.assign can be used to transfer all the properties into a new array literal_x000D_
const newArr5 = Object.assign([], oldArr);_x000D_
_x000D_
// Creating via the Array constructor using the new keyword_x000D_
const newArr6 = new Array(...oldArr);_x000D_
_x000D_
// For loop_x000D_
function clone(base) {_x000D_
 const newArray = [];_x000D_
    for(let i= 0; i < base.length; i++) {_x000D_
     newArray[i] = base[i];_x000D_
 }_x000D_
 return newArray;_x000D_
}_x000D_
_x000D_
const newArr7 = clone(oldArr);_x000D_
_x000D_
console.log(newArr1, newArr2, newArr3, newArr4, newArr5, newArr6, newArr7);

Be careful when arrays or objects are nested!:

When arrays are nested the values are copied by reference. Here is an example of how this could lead to issues:

let arr1 = [1,2,[1,2,3]]_x000D_
_x000D_
let arr2 = [...arr1];_x000D_
_x000D_
arr2[2][0] = 5;  // we change arr2_x000D_
_x000D_
console.log(arr1);  // arr1 is also changed because the array inside arr1 was copied by reference

So don't use these methods when there are objects or arrays inside your array you want to copy. i.e. Use these methods on arrays of primitives only.

If you do want to deepclone a javascript array use JSON.parse in conjunction with JSON.stringify, like this:

let arr1 = [1,2,[1,2,3]]_x000D_
_x000D_
let arr2 = JSON.parse(JSON.stringify(arr1)) ;_x000D_
_x000D_
arr2[2][0] = 5;_x000D_
_x000D_
console.log(arr1);  // now I'm not modified because I'm a deep clone

Performance of copying:

So which one do we choose for optimal performance. It turns out that the most verbose method, the for loop has the highest performance. Use the for loop for really CPU intensive copying (large/many arrays).

After that the .slice() method also has decent performance and is also less verbose and easier for the programmer to implement. I suggest to use .slice() for your everyday copying of arrays which aren't very CPU intensive. Also avoid using the JSON.parse(JSON.stringify(arr)) (lots of overhead) if no deep clone is required and performance is an issue.

Source performance test

You can export the private key with the command-line tool from GPG. It works on the Windows-shell. Use the following command:

gpg --export-secret-keys

A normal export with --export will not include any private keys, therefore you have to use --export-secret-keys.

Edit:

To sum up the information given in my comments, this is the command that allows you to export a specific key with the ID 1234ABCD to the file secret.asc:

gpg --export-secret-keys --armor 1234ABCD > secret.asc

You can find the ID that you need using the following command. The ID is the second part of the second column:

gpg --list-keys

To Export just 1 specific secret key instead of all of them:

gpg --export-secret-keys keyIDNumber > exportedKeyFilename.asc

keyIDNumber is the number of the key id for the desired key you are trying to export.

Doesn't all of this assume that the base class is a new-style class?

class A:
    def __init__(self):
        print("A.__init__()")

class B(A):
    def __init__(self):
        print("B.__init__()")
        super(B, self).__init__()

Will not work in Python 2. class A must be new-style, i.e: class A(object)

java.lang.NoSuchMethodError: javax.servlet.ServletContext.getContextPath()Ljava/lang/String;

That method was added in Servlet 2.5.

So this problem can have at least 3 causes:

1. The servlet container does not support Servlet 2.5.
2. The web.xml is not declared conform Servlet 2.5 or newer.
3. The webapp's runtime classpath is littered with servlet container specific JAR files of a different servlet container make/version which does not support Servlet 2.5.

To solve it,

1. Make sure that your servlet container supports at least Servlet 2.5. That are at least Tomcat 6, Glassfish 2, JBoss AS 4.1, etcetera. Tomcat 5.5 for example supports at highest Servlet 2.4. If you can't upgrade Tomcat, then you'd need to downgrade Spring to a Servlet 2.4 compatible version.
2. Make sure that the root declaration of web.xml complies Servlet 2.5 (or newer, at least the highest whatever your target runtime supports). For an example, see also somewhere halfway our servlets wiki page.
3. Make sure that you don't have any servlet container specific libraries like servlet-api.jar or j2ee.jar in /WEB-INF/lib or even worse, the JRE/lib or JRE/lib/ext. They do not belong there. This is a pretty common beginner's mistake in an attempt to circumvent compilation errors in an IDE, see also How do I import the javax.servlet API in my Eclipse project?.

select partition_name,column_name,high_value,partition_position
from ALL_TAB_PARTITIONS a , ALL_PART_KEY_COLUMNS b 
where table_name='YOUR_TABLE' and a.table_name = b.name;

This query lists the column name used as key and the allowed values. make sure, you insert the allowed values(high_value). Else, if default partition is defined, it would go there.

EDIT:

I presume, your TABLE DDL would be like this.

CREATE TABLE HE0_DT_INF_INTERFAZ_MES
  (
    COD_PAIS NUMBER,
    FEC_DATA NUMBER,
    INTERFAZ VARCHAR2(100)
  )
  partition BY RANGE(COD_PAIS, FEC_DATA)
  (
    PARTITION PDIA_98_20091023 VALUES LESS THAN (98,20091024)
  );

Which means I had created a partition with multiple columns which holds value less than the composite range (98,20091024);

That is first COD_PAIS <= 98 and Also FEC_DATA < 20091024

Combinations And Result:

98, 20091024     FAIL
98, 20091023     PASS
99, ********     FAIL
97, ********     PASS
 < 98, ********     PASS

So the below INSERT fails with ORA-14400; because (98,20091024) in INSERT is EQUAL to the one in DDL but NOT less than it.

SQL> INSERT INTO HE0_DT_INF_INTERFAZ_MES(COD_PAIS, FEC_DATA, INTERFAZ)
                                  VALUES(98, 20091024, 'CTA');  2
INSERT INTO HE0_DT_INF_INTERFAZ_MES(COD_PAIS, FEC_DATA, INTERFAZ)
            *
ERROR at line 1:
ORA-14400: inserted partition key does not map to any partition

But, we I attempt (97,20091024), it goes through

SQL> INSERT INTO HE0_DT_INF_INTERFAZ_MES(COD_PAIS, FEC_DATA, INTERFAZ)
  2                                    VALUES(97, 20091024, 'CTA');

1 row created.

If you are using redux and redux-thunk the best solution will be using react-router-redux

// then, in redux actions for example
import { push } from 'react-router-redux'

dispatch(push('/some/path'))

It's important to see the docs to do some configurations.

There is a new API called URLSearchParams in browsers which allow you to extract and change the values of the query string.

Currently, it seems to be supported in Firefox 44+, Chrome 49+ and Opera 36+.

Initialize/Input

To get started, create a new URLSearchParams object. For current implementations, you need to remove the "?" at the beginning of the query string, using slice(1) on the querystring, as Jake Archibald suggests:

var params = new URLSearchParams(window.location.search.slice(1)); // myParam=12

In later implementations, you should be able to use it without slice:

var params = new URLSearchParams(window.location.search); // myParam=12

Get

You can get params from it via the .get method:

params.get('myParam'); // 12

Set

Params can be changed using .set:

params.set('myParam', 'newValue');

Output

And if the current querystring is needed again, the .toString method provides it:

params.toString(); // myParam=newValue

There are a host of other methods in this API.

Polyfill

As browser support is still pretty thin, there is a small polyfill by Andrea Giammarchi (<3kB).

I was trying to solve the same problem, but found an interesting advice by Basarat Ali Syed, of TypeScript Deep Dive fame, that we should avoid the generic export default declaration for a class, and instead append the export tag to the class declaration. The imported class should be instead listed in the import command of the module.

That is: instead of

class Foo {
    // ...
}
export default Foo;

and the simple import Foo from './foo'; in the module that will import, one should use

export class Foo {
    // ...
}

and import {Foo} from './foo' in the importer.

The reason for that is difficulties in the refactoring of classes, and the added work for exportation. The original post by Basarat is in export default can lead to problems

Using Jquery and sending the data with ajax, you can solve your problem:

<script>

$('#form_id').submit(function() {
    $("#input_disabled_id").prop('disabled', false);

    //Rest of code
    })
</script>

I just installed Jest as global, ran jest myFileToTest.spec.js, and it worked.

It works for me. See this solution - https://alvarotrigo.com/blog/firing-resize-event-only-once-when-resizing-is-finished/

var resizeId;_x000D_
$(window).resize(function() {_x000D_
    clearTimeout(resizeId);_x000D_
    resizeId = setTimeout(doneResizing, 500);_x000D_
});_x000D_
function doneResizing(){_x000D_
    //whatever we want to do _x000D_
}

You can try something like this:

<context:property-placeholder 
        location="${ext.properties.dir:classpath:}/servlet.properties" />

And define ext.properties.dir property in your application server / jvm, otherwise the default properties location "classpath:/" (i.e., classes dir of .jar or .war) would be used:

-Dext.properties.dir=file:/usr/local/etc/

BTW, very useful blog post.

Python can use all memory available to its environment. My simple "memory test" crashes on ActiveState Python 2.6 after using about

1959167 [MiB]

On jython 2.5 it crashes earlier:

 239000 [MiB]

probably I can configure Jython to use more memory (it uses limits from JVM)

Test app:

import sys

sl = []
i = 0
# some magic 1024 - overhead of string object
fill_size = 1024
if sys.version.startswith('2.7'):
    fill_size = 1003
if sys.version.startswith('3'):
    fill_size = 497
print(fill_size)
MiB = 0
while True:
    s = str(i).zfill(fill_size)
    sl.append(s)
    if i == 0:
        try:
            sys.stderr.write('size of one string %d\n' % (sys.getsizeof(s)))
        except AttributeError:
            pass
    i += 1
    if i % 1024 == 0:
        MiB += 1
        if MiB % 25 == 0:
            sys.stderr.write('%d [MiB]\n' % (MiB))

In your app you read whole file at once. For such big files you should read the line by line.

Because the bootstrap-select is a bootstrap component and therefore you need to include it in your code as you did for your V3

NOTE: this component only works in boostrap-4 since version 1.13.0

$('select').selectpicker();

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">_x000D_
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/css/bootstrap-select.css" />_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.bundle.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.13.1/js/bootstrap-select.min.js"></script>_x000D_
_x000D_
_x000D_
_x000D_
<select class="selectpicker" multiple data-live-search="true">_x000D_
  <option>Mustard</option>_x000D_
  <option>Ketchup</option>_x000D_
  <option>Relish</option>_x000D_
</select>

Arrays can't be resized, so you need to allocte a new array that is larger, write the new byte at the beginning of it, and use Buffer.BlockCopy to transfer the contents of the old array across.

In PHP there are a lot of variables that I should check. Is it the same on Go?

This has nothing to do with Go (or PHP for that matter). It just depends on what the client, proxy, load-balancer, or server is sending. Get the one you need depending on your environment.

http.Request.RemoteAddr contains the remote IP address. It may or may not be your actual client.

And is the request case sensitive? for example x-forwarded-for is the same as X-Forwarded-For and X-FORWARDED-FOR? (from req.Header.Get("X-FORWARDED-FOR"))

No, why not try it yourself? http://play.golang.org/p/YMf_UBvDsH

s = "BINGO"
print(" ".join(s))

Should do it.

Browsers and OS's determine the style of the select boxes in most cases, and it's next to impossible to alter them with CSS alone. You'll have to look into replacement methods. The main trick is to apply appearance: none which lets you override some of the styling.

My favourite method is this one:

http://cssdeck.com/item/265/styling-select-box-with-css3

It doesn't replace the OS select menu UI element so all the problems related to doing that are non-existant (not being able to break out of the browser window with a long list being the main one).

Good luck :)

I was able to resolve this very easily my simply enqueuing jQuery wp_enqueue_script("jquery");

Simple, make a simple asp page with the designer (just for the beginning) Lets say the body is something like this:

<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
        <br />
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
    </div>
    <p>
        <asp:Button ID="Button1" runat="server" Text="Button" />
    </p>
    </form>
</body>

Great, now every asp object IS an object. So you can access it in the asp's CS code. The asp's CS code is triggered by events (mostly). The class will probably inherit from System.Web.UI.Page

If you go to the cs file of the asp page, you'll see a protected void Page_Load(object sender, EventArgs e) ... That's the load event, you can use that to populate data into your objects when the page loads.

Now, go to the button in your designer (Button1) and look at its properties, you can design it, or add events from there. Just change to the events view, and create a method for the event.

The button is a web control Button Add a Click event to the button call it Button1Click:

void Button1Click(Object sender,EventArgs e) { }

Now when you click the button, this method will be called. Because ASP is object oriented, you can think of the page as the actual class, and the objects will hold the actual current data.

So if for example you want to access the text in TextBox1 you just need to call that object in the C# code:

String firstBox = TextBox1.Text;

In the same way you can populate the objects when event occur.

Now that you have the data the user posted in the textboxes , you can use regular C# SQL connections to add the data to your database.

VT-x can normally be disabled/enabled in your BIOS.

When your PC is just starting up you should press DEL (or something) to get to the BIOS settings. There you'll find an option to enable VT-technology (or something).

Try the following:

List<string> test1 = new List<string> { "@bob.com", "@tom.com" };
List<string> test2 = new List<string> { "[email protected]", "[email protected]" };
var output = from goodEmails in test2
            where !(from email in test2
                from domain in test1
                where email.EndsWith(domain)
                select email).Contains(goodEmails)
            select goodEmails;

This works with the test set provided (and looks correct).

Converted DateID having date in Int format to date format: Presto Query

Select CAST(date_format(date_parse(cast(dateid as varchar(10)), '%Y%m%d'), '%Y/%m-%d') AS DATE)
from
     Table_Name
limit 10;

You can think of O(log N) intuitively by saying the time is proportional to the number of digits in N.

If an operation performs constant time work on each digit or bit of an input, the whole operation will take time proportional to the number of digits or bits in the input, not the magnitude of the input; thus, O(log N) rather than O(N).

If an operation makes a series of constant time decisions each of which halves (reduces by a factor of 3, 4, 5..) the size of the input to be considered, the whole will take time proportional to log base 2 (base 3, base 4, base 5...) of the size N of the input, rather than being O(N).

And so on.

My solution:

1. remove all projects in current workspace
2. import all again
3. maven update project (Alt + F5) -> Select All and check Force Update of Snapshots/Releases
4. maven build (Ctrl + B) until there is nothing to build

It worked for me after the second try.

The server may need read permission for your home directory and .htaccess therein

You can also do ORDER BY TITLE COLLATE NOCASE.

Edit: If you need to specify ASC or DESC, add this after NOCASE like

ORDER BY TITLE COLLATE NOCASE ASC

or

ORDER BY TITLE COLLATE NOCASE DESC

Maybe this could be a little older article. but must of the above answers don´t help me as I need. Then I wrote a little snippet for that.

This accepts any XML that hast at least 3 levels (Like this sample):

<XmlData>
    <XmlRow>
        <XmlField1>Data 1</XmlField1>  
        <XmlField2>Data 2</XmlField2>  
        <XmlField3>Data 3</XmlField3>  
        .......
    </XmlRow>
</XmlData>

public static class XmlParser
{
    /// <summary>
    /// Converts XML string to DataTable
    /// </summary>
    /// <param name="Name">DataTable name</param>
    /// <param name="XMLString">XML string</param>
    /// <returns></returns>
    public static DataTable BuildDataTableFromXml(string Name, string XMLString)
    {
        XmlDocument doc = new XmlDocument();
        doc.Load(new StringReader(XMLString));
        DataTable Dt = new DataTable(Name);
        try
        {

            XmlNode NodoEstructura = doc.FirstChild.FirstChild;
            //  Table structure (columns definition) 
            foreach (XmlNode columna in NodoEstructura.ChildNodes)
            {
                Dt.Columns.Add(columna.Name, typeof(String));
            }

            XmlNode Filas = doc.FirstChild;
            //  Data Rows 
            foreach (XmlNode Fila in Filas.ChildNodes)
            {
                List<string> Valores = new List<string>();
                foreach (XmlNode Columna in Fila.ChildNodes)
                {
                    Valores.Add(Columna.InnerText);
                }
                Dt.Rows.Add(Valores.ToArray());
            }
        } catch(Exception)
        {

        }

        return Dt;
    }
}

This solve my problem

try this ,hope it helps

select user_display_image as user_image,
user_display_name as user_name,
invitee_phone,
(
 CASE 
    WHEN invitee_status=1 THEN "attending" 
    WHEN invitee_status=2 THEN "unsure" 
    WHEN invitee_status=3 THEN "declined" 
    WHEN invitee_status=0 THEN "notreviwed" END
) AS  invitee_status
 FROM your_tbl

-> Testing the app with maximum number of user and input is defined as load testing. While testing the app with more than maximum number of user and input is defined as stress testing.

->In Load testing we measure the system performance based on a volume of users. While in Stress testing we measure the breakpoint of a system.

->Load Testing is testing the application for a given load requirements which may include any of the following criteria:

 .Total number of users.

 .Response Time

 .Through Put

Some parameters to check State of servers/application.

-> While stress testing is testing the application for unexpected load. It includes

 .Vusers

 .Think-Time

Example:

If an app is build for 500 users, then for load testing we check up to 500 users and for stress testing we check greater than 500.

Here is the correct SOLUTION! Since the button doesn't have a defined attribute type, angular maybe attempting to issue the keyup event as a submit request and triggers the click event on the button.

<button type="button" ...></button>

Big thanks to DeborahK!

Angular2 - Enter Key executes first (click) function present on the form

I have experienced this problem in some projects with Xcode 9.3.1 and in my case the problem is due to some swift code that for some reason Xcode doesn't like. This problem is hard to solve because is difficult to find what file is causing the problem.

When I have this problem, I removing some files from the Xcode project (removing references) and I try to test if indexing works. My process to do so

1. Remove some files
2. Close Xcode
3. Open Xcode
4. If indexing finish try to rename some method if works probably the files you have removed they have something strange for Xcode.

In my case I had a class definition with a reactive extension in the same file and for some reason Xcode doesn't like it, I moved the reactive extension to another file and now the indexing works fine.

I had a button where the background-image had a shadow below it so the text alignment was off from the top. Changing the line-height wouldn't help. I added padding-bottom to it and it worked.

So what you have to do is determine the line-height you want to play with. So, for example, if I have a button who's height is truly 90px but I want the line-height to be 80px I would have something like this:

input[type=butotn].mybutton{
    background: url(my/image.png) no-repeat center top; /*Image is 90px x 150px*/
    width: 150px;
    height: 80px; /*shadow at the bottom is 10px (90px-10px)*/
    padding-bottom: 10px; /*the padding will make up for the lost height while maintaining the line-height to the proper height */

}

I hope this helps.

@Ryan, you are right, hard-coding the height will make it work bad in case of custom navbars. This is the code I am using for BS 3.0.0 happily:

$(window).resize(function () { 
   $('body').css('padding-top', parseInt($('#main-navbar').css("height"))+10);
});

$(window).load(function () { 
   $('body').css('padding-top', parseInt($('#main-navbar').css("height"))+10);         
}); 

Be careful of race conditions: if the file disappears between the "exists" check and the time you open it, your program will fail unexpectedly.

It's better to go and open the file, check for failure and if all is good then do something with the file. It's even more important with security-critical code.

Details about security and race conditions: http://www.ibm.com/developerworks/library/l-sprace.html

The currently accepted answer wasn't working for me. You need to use Object.assign() properly:

class Person {
    constructor(name, age){
        this.name = name;
        this.age = age;
    }

    greet(){
        return `hello my name is ${ this.name } and i am ${ this.age } years old`;
    }
}

You create objects of this class normally:

let matt = new Person('matt', 12);
console.log(matt.greet()); // prints "hello my name is matt and i am 12 years old"

If you have a json string you need to parse into the Person class, do it like so:

let str = '{"name": "john", "age": 15}';
let john = JSON.parse(str); // parses string into normal Object type

console.log(john.greet()); // error!!

john = Object.assign(Person.prototype, john); // now john is a Person type
console.log(john.greet()); // now this works

You can go for this :

getActivity().getSystemService(Context.CONNECTIVITY_SERVICE);

You need to change from queue import Queue to from multiprocessing import Queue.

The root reason is the former Queue is designed for threading module Queue while the latter is for multiprocessing.Process module.

For details, you can read some source code or contact me!

John Sansom and Ed Harper have great solutions. However, I was unable to get them to work when dealing with ID fields (i.e. Integers). I modified the split function below to CAST the values as integers so the table will join with primary key columns. I also commented the code and added a column for order, in case the delimited list order was significant.

CREATE FUNCTION [dbo].[fn_SplitInt]
(
    @List       nvarchar(4000),
    @Delimiter  char(1)= ','
)
RETURNS @Values TABLE
(
    Position int IDENTITY PRIMARY KEY,
    Number int
)

AS

  BEGIN

  -- set up working variables
  DECLARE @Index INT
  DECLARE @ItemValue nvarchar(100)
  SELECT @Index = 1 

  -- iterate until we have no more characters to work with
  WHILE @Index > 0

    BEGIN

      -- find first delimiter
      SELECT @Index = CHARINDEX(@Delimiter,@List)

      -- extract the item value
      IF @Index  > 0     -- if found, take the value left of the delimiter
        SELECT @ItemValue = LEFT(@List,@Index - 1)
      ELSE               -- if none, take the remainder as the last value
        SELECT @ItemValue = @List

      -- insert the value into our new table
      INSERT INTO @Values (Number) VALUES (CAST(@ItemValue AS int))

      -- remove the found item from the working list
      SELECT @List = RIGHT(@List,LEN(@List) - @Index)

      -- if list is empty, we are done
      IF LEN(@List) = 0 BREAK

    END

  RETURN

  END

Use this function as previously noted with:

WHERE id IN (SELECT Number FROM dbo.fn_SplitInt(@sParameterString,','))

There's an alternative approach to this:

#include <iterator>
#include <algorithm>

// ...

    copy(istream_iterator<int>(iFile), istream_iterator<int>(),
         ostream_iterator<int>(cerr, "\n"));

To untrack a file that has already been added/initialized to your repository, ie stop tracking the file but not delete it from your system use: git rm --cached filename

Just get a handle to the root logger and add the StreamHandler. The StreamHandler writes to stderr. Not sure if you really need stdout over stderr, but this is what I use when I setup the Python logger and I also add the FileHandler as well. Then all my logs go to both places (which is what it sounds like you want).

import logging
logging.getLogger().addHandler(logging.StreamHandler())

If you want to output to stdout instead of stderr, you just need to specify it to the StreamHandler constructor.

import sys
# ...
logging.getLogger().addHandler(logging.StreamHandler(sys.stdout))

You could also add a Formatter to it so all your log lines have a common header.

ie:

import logging
logFormatter = logging.Formatter("%(asctime)s [%(threadName)-12.12s] [%(levelname)-5.5s]  %(message)s")
rootLogger = logging.getLogger()

fileHandler = logging.FileHandler("{0}/{1}.log".format(logPath, fileName))
fileHandler.setFormatter(logFormatter)
rootLogger.addHandler(fileHandler)

consoleHandler = logging.StreamHandler()
consoleHandler.setFormatter(logFormatter)
rootLogger.addHandler(consoleHandler)

Prints to the format of:

2012-12-05 16:58:26,618 [MainThread  ] [INFO ]  my message

Here is a Python function that splits a Pandas dataframe into train, validation, and test dataframes with stratified sampling. It performs this split by calling scikit-learn's function train_test_split() twice.

import pandas as pd
from sklearn.model_selection import train_test_split

def split_stratified_into_train_val_test(df_input, stratify_colname='y',
                                         frac_train=0.6, frac_val=0.15, frac_test=0.25,
                                         random_state=None):
    '''
    Splits a Pandas dataframe into three subsets (train, val, and test)
    following fractional ratios provided by the user, where each subset is
    stratified by the values in a specific column (that is, each subset has
    the same relative frequency of the values in the column). It performs this
    splitting by running train_test_split() twice.

    Parameters
    ----------
    df_input : Pandas dataframe
        Input dataframe to be split.
    stratify_colname : str
        The name of the column that will be used for stratification. Usually
        this column would be for the label.
    frac_train : float
    frac_val   : float
    frac_test  : float
        The ratios with which the dataframe will be split into train, val, and
        test data. The values should be expressed as float fractions and should
        sum to 1.0.
    random_state : int, None, or RandomStateInstance
        Value to be passed to train_test_split().

    Returns
    -------
    df_train, df_val, df_test :
        Dataframes containing the three splits.
    '''

    if frac_train + frac_val + frac_test != 1.0:
        raise ValueError('fractions %f, %f, %f do not add up to 1.0' % \
                         (frac_train, frac_val, frac_test))

    if stratify_colname not in df_input.columns:
        raise ValueError('%s is not a column in the dataframe' % (stratify_colname))

    X = df_input # Contains all columns.
    y = df_input[[stratify_colname]] # Dataframe of just the column on which to stratify.

    # Split original dataframe into train and temp dataframes.
    df_train, df_temp, y_train, y_temp = train_test_split(X,
                                                          y,
                                                          stratify=y,
                                                          test_size=(1.0 - frac_train),
                                                          random_state=random_state)

    # Split the temp dataframe into val and test dataframes.
    relative_frac_test = frac_test / (frac_val + frac_test)
    df_val, df_test, y_val, y_test = train_test_split(df_temp,
                                                      y_temp,
                                                      stratify=y_temp,
                                                      test_size=relative_frac_test,
                                                      random_state=random_state)

    assert len(df_input) == len(df_train) + len(df_val) + len(df_test)

    return df_train, df_val, df_test

Below is a complete working example.

Consider a dataset that has a label upon which you want to perform the stratification. This label has its own distribution in the original dataset, say 75% foo, 15% bar and 10% baz. Now let's split the dataset into train, validation, and test into subsets using a 60/20/20 ratio, where each split retains the same distribution of the labels. See the illustration below:

Here is the example dataset:

df = pd.DataFrame( { 'A': list(range(0, 100)),
                     'B': list(range(100, 0, -1)),
                     'label': ['foo'] * 75 + ['bar'] * 15 + ['baz'] * 10 } )

df.head()
#    A    B label
# 0  0  100   foo
# 1  1   99   foo
# 2  2   98   foo
# 3  3   97   foo
# 4  4   96   foo

df.shape
# (100, 3)

df.label.value_counts()
# foo    75
# bar    15
# baz    10
# Name: label, dtype: int64

Now, let's call the split_stratified_into_train_val_test() function from above to get train, validation, and test dataframes following a 60/20/20 ratio.

df_train, df_val, df_test = \
    split_stratified_into_train_val_test(df, stratify_colname='label', frac_train=0.60, frac_val=0.20, frac_test=0.20)

The three dataframes df_train, df_val, and df_test contain all the original rows but their sizes will follow the above ratio.

df_train.shape
#(60, 3)

df_val.shape
#(20, 3)

df_test.shape
#(20, 3)

Further, each of the three splits will have the same distribution of the label, namely 75% foo, 15% bar and 10% baz.

df_train.label.value_counts()
# foo    45
# bar     9
# baz     6
# Name: label, dtype: int64

df_val.label.value_counts()
# foo    15
# bar     3
# baz     2
# Name: label, dtype: int64

df_test.label.value_counts()
# foo    15
# bar     3
# baz     2
# Name: label, dtype: int64

Here is my method:

import re
# Compile
p = re.compile(r'hi')
# Match and print
print bool(p.match("abcdefghijkl"))

It's actually not really clearly stated in the standard (RFC 3986) whether a percent-encoded version of . or .. is supposed to have the same this-folder/up-a-folder meaning as the unescaped version. Section 3.3 only talks about “The path segments . and ..”, without clarifying whether they match . and .. before or after pct-encoding.

Personally I find Firefox's interpretation that %2E does not mean . most practical, but unfortunately all the other browsers disagree. This would mean that you can't have a path component containing only . or ...

I think the only possible suggestion is “don't do that”! There are other path components that are troublesome too, typically due to server limitations: %2F, %00 and %5C sequences in paths may also be blocked by some web servers, and the empty path segment can also cause problems. So in general it's not possible to fit all possible byte sequences into a path component.

Here is a solution under 19API lvl:

• First of all. Make a Gson obj. --> Gson gson = new Gson();

• Second step is get your jsonObj as String with StringRequest(instead of JsonObjectRequest)

• The last step to get JsonArray...

YoursObjArray[] yoursObjArray = gson.fromJson(response, YoursObjArray[].class);

Imp. TIP :

Whenever you have heavyweight initialization that should be done once for many RDD elements rather than once per RDD element, and if this initialization, such as creation of objects from a third-party library, cannot be serialized (so that Spark can transmit it across the cluster to the worker nodes), use mapPartitions() instead of map(). mapPartitions() provides for the initialization to be done once per worker task/thread/partition instead of once per RDD data element for example : see below.

val newRd = myRdd.mapPartitions(partition => {
  val connection = new DbConnection /*creates a db connection per partition*/

  val newPartition = partition.map(record => {
    readMatchingFromDB(record, connection)
  }).toList // consumes the iterator, thus calls readMatchingFromDB 

  connection.close() // close dbconnection here
  newPartition.iterator // create a new iterator
})

Q2. does flatMap behave like map or like mapPartitions?

Yes. please see example 2 of flatmap.. its self explanatory.

Q1. What's the difference between an RDD's map and mapPartitions

map works the function being utilized at a per element level while mapPartitions exercises the function at the partition level.

Example Scenario : if we have 100K elements in a particular RDD partition then we will fire off the function being used by the mapping transformation 100K times when we use map.

Conversely, if we use mapPartitions then we will only call the particular function one time, but we will pass in all 100K records and get back all responses in one function call.

There will be performance gain since map works on a particular function so many times, especially if the function is doing something expensive each time that it wouldn't need to do if we passed in all the elements at once(in case of mappartitions).

map

Applies a transformation function on each item of the RDD and returns the result as a new RDD.

Listing Variants

def map[U: ClassTag](f: T => U): RDD[U]

Example :

val a = sc.parallelize(List("dog", "salmon", "salmon", "rat", "elephant"), 3)
 val b = a.map(_.length)
 val c = a.zip(b)
 c.collect
 res0: Array[(String, Int)] = Array((dog,3), (salmon,6), (salmon,6), (rat,3), (elephant,8)) 

mapPartitions

This is a specialized map that is called only once for each partition. The entire content of the respective partitions is available as a sequential stream of values via the input argument (Iterarator[T]). The custom function must return yet another Iterator[U]. The combined result iterators are automatically converted into a new RDD. Please note, that the tuples (3,4) and (6,7) are missing from the following result due to the partitioning we chose.

preservesPartitioning indicates whether the input function preserves the partitioner, which should be false unless this is a pair RDD and the input function doesn't modify the keys.

Listing Variants

def mapPartitions[U: ClassTag](f: Iterator[T] => Iterator[U], preservesPartitioning: Boolean = false): RDD[U]

Example 1

val a = sc.parallelize(1 to 9, 3)
 def myfunc[T](iter: Iterator[T]) : Iterator[(T, T)] = {
   var res = List[(T, T)]()
   var pre = iter.next
   while (iter.hasNext)
   {
     val cur = iter.next;
     res .::= (pre, cur)
     pre = cur;
   }
   res.iterator
 }
 a.mapPartitions(myfunc).collect
 res0: Array[(Int, Int)] = Array((2,3), (1,2), (5,6), (4,5), (8,9), (7,8)) 

Example 2

val x = sc.parallelize(List(1, 2, 3, 4, 5, 6, 7, 8, 9,10), 3)
 def myfunc(iter: Iterator[Int]) : Iterator[Int] = {
   var res = List[Int]()
   while (iter.hasNext) {
     val cur = iter.next;
     res = res ::: List.fill(scala.util.Random.nextInt(10))(cur)
   }
   res.iterator
 }
 x.mapPartitions(myfunc).collect
 // some of the number are not outputted at all. This is because the random number generated for it is zero.
 res8: Array[Int] = Array(1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 5, 7, 7, 7, 9, 9, 10) 

The above program can also be written using flatMap as follows.

Example 2 using flatmap

val x  = sc.parallelize(1 to 10, 3)
 x.flatMap(List.fill(scala.util.Random.nextInt(10))(_)).collect

 res1: Array[Int] = Array(1, 2, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10) 

Conclusion :

mapPartitions transformation is faster than map since it calls your function once/partition, not once/element..

Further reading : foreach Vs foreachPartitions When to use What?

This link has some useful suggestions: http://forums.iis.net/t/1085990.aspx

It depends on where you have the config settings stored. By default IIS7 will have all of it's configuration settings stored in a file called "ApplicationHost.Config". If you have delegation configured then you will see site/app related config settings getting written to web.config file for the site/app. With IIS7 on vista there is an automatica backup file for master configuration is created. This file is called "application.config.backup" and it resides inside "C:\Windows\System32\inetsrv\config" You could rename this file to applicationHost.config and replace it with the applicationHost.config inside the config folder. IIS7 on server release will have better configuration back up story, but for now I recommend using APPCMD to backup/restore your configuration on regualr basis. Example: APPCMD ADD BACK "MYBACKUP" Another option (really the last option) is to uninstall/reinstall IIS along with WPAS (Windows Process activation service).

And for webkit enabled browsers I've had good results with:

.myElement {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth; // Added in from answer from Felix
    overflow-x: scroll;
}

This makes scrolling behave much more like the standard browser behavior - at least it works well on the iPhone we were testing on!

Hope that helps,

Ed

It looks like you are trying to parse each line. You've been shown by another answer how to use getline in a loop to seperate each line. The other tool you are going to want is istringstream, to seperate each token.

std::string line;
while(std::getline(file, line))
{
    std::istringstream iss(line);
    std::string token;
    while (iss >> token)
    {
        // do something with token
    }
}

Since ASP.NET MVC 3 RTM is out there is no need for config section for Razor. And these sections can be safely removed.

Is the Canvas crucial in your window? If not, try removing it and keep the Grid as the main panel. Canvas has no size unless specified, while a Grid normally takes up all available space. Inside the Canvas, the Grid will have no available space.

The normal method to send a file upload is POST, thus also post_max_size should be 16 Mb or more.

Incidentally, also memory_limit plays a role. It should be bigger than 16Mb, but since the default value is 128Mb, you won't see this problem. Example php.ini configuration:

post_max_size = 16M
upload_max_filesize = 16M
memory_limit = 128M

Change these value in php.ini if you've access to it, otherwise you can try to change them in an .htaccess file.

php_value upload_max_filesize 16M
php_value post_max_size 16M 

This will work only if the AllowOverride settings permit it. Otherwise, you've to ask to your hosting company.

SyncToy is a free application from Microsoft with a "Preview" mode for comparing two paths. For example:

You can then choose one of three modes ("Synchronize", "Echo" and "Contribute") to resolve the differences.

Lastly, it comes with SyncToyCmd for creating and synchronizing folder pairs from the CLI or a Scheduled Task.

By declaring it global inside the function that accesses it:

g_c = 0

class TestClass():
    def run(self):
        global g_c
        for i in range(10):
            g_c = 1
            print(g_c)

The Python documentation says this, about the global statement:

The global statement is a declaration which holds for the entire current code block.

You just wrap your query in another one:

SELECT COUNT(*), SUM(Age)
FROM (
    SELECT availables.bookdate AS Count, DATEDIFF(now(),availables.updated_at) as Age
    FROM availables
    INNER JOIN rooms
    ON availables.room_id=rooms.id
    WHERE availables.bookdate BETWEEN '2009-06-25' AND date_add('2009-06-25', INTERVAL 4 DAY) AND rooms.hostel_id = 5094
    GROUP BY availables.bookdate
) AS tmp;

One option is to use a numbers/tally table to drive an iterative process via a pseudo-set based query.

The general idea of char replacement can be demonstrated with a simple character map table approach:

create table charMap (srcChar char(1), replaceChar char(1))
insert charMap values ('a', 'z')
insert charMap values ('b', 'y')


create table testChar(srcChar char(1))
insert testChar values ('1')
insert testChar values ('a')
insert testChar values ('2')
insert testChar values ('b')

select 
coalesce(charMap.replaceChar, testChar.srcChar) as charData
from testChar left join charMap on testChar.srcChar = charMap.srcChar

Then you can bring in the tally table approach to do the lookup on each character position in the string.

create table tally (i int)
declare @i int
set @i = 1
while @i <= 256 begin
    insert tally values (@i)
    set @i = @i + 1
end

create table testData (testString char(10))
insert testData values ('123a456')
insert testData values ('123ab456')
insert testData values ('123b456')

select
    i,
    SUBSTRING(testString, i, 1) as srcChar,
    coalesce(charMap.replaceChar, SUBSTRING(testString, i, 1)) as charData
from testData cross join tally
    left join charMap on SUBSTRING(testString, i, 1) = charMap.srcChar
where i <= LEN(testString)

I ran into a problem with this as well as my JUnit assertEquals were failing comparing Dates to Hibernate emitted 'java.util.Date' types (which as described in the question are really Timestamps). It turns out that by changing the mapping to 'date' rather than 'java.util.Date' Hibernate generates java.util.Date members. I am using an XML mapping file with Hibernate version 4.1.12.

This version emits 'java.util.Timestamp':

<property name="date" column="DAY" type="java.util.Date" unique-key="KONSTRAINT_DATE_IDX" unique="false" not-null="true" />

This version emits 'java.util.Date':

<property name="date" column="DAY" type="date" unique-key="KONSTRAINT_DATE_IDX" unique="false" not-null="true" />

Note, however, if Hibernate is used to generate the DDL, then these will generate different SQL types (Date for 'date' and Timestamp for 'java.util.Date').

Have your tried using the 'return' keyword?

def rps():
    return True

Not taking anything away from Nikos' awesome answer, perhaps you can do this more simply:

<form name="telForm">
  <input name="cb" type='checkbox' data-ng-modal='requireTel'>
  <input name="tel" type="text" ng-model="..." ng-if='requireTel' ng-pattern="phoneNumberPattern" required/>
  <button type="submit" ng-disabled="telForm.$invalid || telForm.$pristine">Submit</button>
</form>

Pay attention to the second input: We can use an ng-if to control rendering and validation in forms. If the requireTel variable is unset, the second input would not only be hidden, but not rendered at all, thus the form will pass validation and the button will become enabled, and you'll get what you need.

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

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

Just use the function for parsing a CSV file

http://php.net/manual/en/function.fgetcsv.php

$row = 1;
if (($handle = fopen("test.csv", "r")) !== FALSE) {
  while (($data = fgetcsv($handle, 1000, ",")) !== FALSE) {
    $num = count($data);
    echo "<p> $num fields in line $row: <br /></p>\n";
    $row++;
    for ($c=0; $c < $num; $c++) {
        echo $data[$c] . "<br />\n";
    }
  }
  fclose($handle);
}

class Testclass
{
  public $testvar;

  function dosomething()
  {
    echo $this->testvar;
  }
}

$Testclass = new Testclass();
$Testclass->testvar = "another value";    
$Testclass->dosomething(); ////It will print "another value"

If you don't have an id on the image but have a parent div this is also a technique you can use.

<div id="myDiv"><img src="http://www.example.com/image.png"></div>

var myVar = document.querySelectorAll('#myDiv img')[0].src

my local and remote machines are both OS X. I was having trouble until I checked the file structure of the git repo that xCode Server provides me. Essentially everything is chmod 777 * in that repo so to setup a separate non xCode repo on the same machine in my remote account there I did this:

REMOTE MACHINE

1. Login to your account
2. Create a master dir for all projects 'mkdir git'
3. chmod 775 git then cd into it
4. make a project folder 'mkdir project1'
5. chmod 777 project1 then cd into it
6. run command 'git init' to make the repo
7. this creates a .git dir. do command 'chmod 777 .git' then cd into it
8. run command 'chmod 777 *' to make all files in .git 777 mod
9. cd back out to myproject1 (cd ..)
10. setup a test file in the new repo w/command 'touch test.php'
11. add it to the repo staging area with command 'git add test.php'
12. run command "git commit -m 'new file'" to add file to repo
13. run command 'git status' and you should get "working dir clean" msg
14. cd back to master dir with 'cd ..'
15. in the master dir make a symlink 'ln -s project1 project1.git'
16. run command 'pwd' to get full path
17. in my case the full path was "/Users/myname/git/project1.git'
18. write down the full path for later use in URL
19. exit from the REMOTE MACHINE

LOCAL MACHINE

1. create a project folder somewhere 'newproj1' with 'mkdir newproj1'
2. cd into it
3. run command 'git init'
4. make an alias to the REMOTE MACHINE
5. the alias command format is 'git remote add your_alias_here URL'
6. make sure your URL is correct. This caused me headaches initially
7. URL = 'ssh://[email protected]/Users/myname/git/project1.git'
8. after you do 'git remote add alias URL' do 'git remote -v'
9. the command should respond with a fetch and push line
10. run cmd 'git pull your_alias master' to get test.php from REMOTE repo
11. after the command in #10 you should see a nice message.
12. run command 'git push --set-upstream your_alias master'
13. after command in 12 you should see nice message
14. command in #12 sets up REMOTE as the project master (root)

For me, i learned getting a clean start with a git repo on a LOCAL and REMOTE requires all initial work in a shell first. Then, after the above i was able to easily setup the LOCAL and REMOTE git repos in my IDE and do all the basic git commands using the GUI of the IDE.

I had difficulty until I started at the remote first, then did the local, and until i opened up all the permissions on remote. In addition, having the exact full path in the URL to the symlink was critical to succeed.

Again, this all worked on OS X, local and remote machines.

The input won't have a value if it doesn't exist. Try this...

if($('.input1').val())

Huffman has a static cost, the Huffman table, so I disagree it's a good choice.

There are adaptative versions which do away with this, but the compression rate may suffer. Actually, the question you should ask is "what algorithm to compress text strings with these characteristics". For instance, if long repetitions are expected, simple Run-Lengh Encoding might be enough. If you can guarantee that only English words, spaces, punctiation and the occasional digits will be present, then Huffman with a pre-defined Huffman table might yield good results.

Generally, algorithms of the Lempel-Ziv family have very good compression and performance, and libraries for them abound. I'd go with that.

With the information that what's being compressed are URLs, then I'd suggest that, before compressing (with whatever algorithm is easily available), you CODIFY them. URLs follow well-defined patterns, and some parts of it are highly predictable. By making use of this knowledge, you can codify the URLs into something smaller to begin with, and ideas behind Huffman encoding can help you here.

For example, translating the URL into a bit stream, you could replace "http" with the bit 1, and anything else with the bit "0" followed by the actual procotol (or use a table to get other common protocols, like https, ftp, file). The "://" can be dropped altogether, as long as you can mark the end of the protocol. Etc. Go read about URL format, and think on how they can be codified to take less space.

Here is a new solution of doing it with doing WMI calls.
Then all you need to do is just to call :

queryAndPrintResult(L"SELECT * FROM Win32_DiskDrive", L"Name");

Declare the following delay function:

var delay = (function () {
    var timer = 0;
    return function (callback, ms) {
        clearTimeout(timer);
        timer = setTimeout(callback, ms);
    };
})()

and then use it:

let $filter = $('#item-filter');
$filter.on('keydown', function () {
    delay(function () {            
        console.log('this will hit, once user has not typed for 1 second');            
    }, 1000);
});    

A String is a type of Object. So any method that accepts Object as parameter will surely accept String also. Please provide more of your code if you still do not find a solution.

You may use java.util.Date class and then use SimpleDateFormat to format the Date.

Date date=new Date(millis);

We can use java.time package (tutorial) - DateTime APIs introduced in the Java SE 8.

var instance = java.time.Instant.ofEpochMilli(millis);
var localDateTime = java.time.LocalDateTime
                        .ofInstant(instance, java.time.ZoneId.of("Asia/Kolkata"));
var zonedDateTime = java.time.ZonedDateTime
                            .ofInstant(instance,java.time.ZoneId.of("Asia/Kolkata"));

// Format the date

var formatter = java.time.format.DateTimeFormatter.ofPattern("u-M-d hh:mm:ss a O");
var string = zonedDateTime.format(formatter);

you can follow this link to know more about How to convert a string/number into number/float/decimal in PHP. HERE IS WHAT THIS LINK SAYS...

Method 1: Using number_format() Function. The number_format() function is used to convert a string into a number. It returns the formatted number on success otherwise it gives E_WARNING on failure.

$num = "1000.314"; 

//Convert string in number using  
//number_format(), function 
echo number_format($num), "\n"; 

//Convert string in number using  
//number_format(), function 
echo number_format($num, 2); 

Method 2: Using type casting: Typecasting can directly convert a string into a float, double, or integer primitive type. This is the best way to convert a string into a number without any function.

// Number in string format 
$num = "1000.314"; 

// Type cast using int 
echo (int)$num, "\n"; 

// Type cast using float 
echo (float)$num, "\n"; 

// Type cast using double 
echo (double)$num; 

Method 3: Using intval() and floatval() Function. The intval() and floatval() functions can also be used to convert the string into its corresponding integer and float values respectively.

// Number in string format 
$num = "1000.314"; 

// intval() function to convert  
// string into integer 
echo intval($num), "\n"; 

// floatval() function to convert 
// string to float 
echo floatval($num); 

Method 4: By adding 0 or by performing mathematical operations. The string number can also be converted into an integer or float by adding 0 with the string. In PHP, performing mathematical operations, the string is converted to an integer or float implicitly.

// Number into string format 
$num = "1000.314"; 

// Performing mathematical operation  
// to implicitly type conversion 
echo $num + 0, "\n"; 

// Performing mathematical operation  
// to implicitly type conversion 
echo $num + 0.0, "\n"; 

// Performing mathematical operation  
// to implicitly type conversion 
echo $num + 0.1;

List.subList(int startIndex, int endIndex)

I believe that you are looking for the java.lang.BigDecimal class.

In short:

defaultdict(int) - the argument int indicates that the values will be int type.

defaultdict(list) - the argument list indicates that the values will be list type.

The problem shall have solved if you specify your path.

e.g.

"require 'st.rb'" --> "require './st.rb'"

See if your problem get solved or not.

Here is one of my mistakes that produced this exception: I had a try block without any except or finally blocks. This will not work:

try:
    lets_do_something_beneficial()

To fix this, add an except or finally block:

try:
    lets_do_something_beneficial()
finally:
    lets_go_to_sleep()

I had a same issue. It was working fine on the local machine but it had issues on the server. I have changed the SMTP setting. It works fine for me.

If you're using GoDaddy Plesk Hosting, use the following SMTP details.

Host = relay-hosting.secureserver.net
Port = 25 

Twisted has SSH support : http://www.devshed.com/c/a/Python/SSH-with-Twisted/

The twisted.conch package adds SSH support to Twisted. This chapter shows how you can use the modules in twisted.conch to build SSH servers and clients.

Setting Up a Custom SSH Server

The command line is an incredibly efficient interface for certain tasks. System administrators love the ability to manage applications by typing commands without having to click through a graphical user interface. An SSH shell is even better, as it’s accessible from anywhere on the Internet.

You can use twisted.conch to create an SSH server that provides access to a custom shell with commands you define. This shell will even support some extra features like command history, so that you can scroll through the commands you’ve already typed.

How Do I Do That? Write a subclass of twisted.conch.recvline.HistoricRecvLine that implements your shell protocol. HistoricRecvLine is similar to twisted.protocols.basic.LineReceiver , but with higher-level features for controlling the terminal.

Write a subclass of twisted.conch.recvline.HistoricRecvLine that implements your shell protocol. HistoricRecvLine is similar to twisted.protocols.basic.LineReceiver, but with higher-level features for controlling the terminal.

To make your shell available through SSH, you need to implement a few different classes that twisted.conch needs to build an SSH server. First, you need the twisted.cred authentication classes: a portal, credentials checkers, and a realm that returns avatars. Use twisted.conch.avatar.ConchUser as the base class for your avatar. Your avatar class should also implement twisted.conch.interfaces.ISession , which includes an openShell method in which you create a Protocol to manage the user’s interactive session. Finally, create a twisted.conch.ssh.factory.SSHFactory object and set its portal attribute to an instance of your portal.

Example 10-1 demonstrates a custom SSH server that authenticates users by their username and password. It gives each user a shell that provides several commands.

Example 10-1. sshserver.py

from twisted.cred import portal, checkers, credentials
from twisted.conch import error, avatar, recvline, interfaces as conchinterfaces
from twisted.conch.ssh import factory, userauth, connection, keys, session, common from twisted.conch.insults import insults from twisted.application import service, internet
from zope.interface import implements
import os

class SSHDemoProtocol(recvline.HistoricRecvLine):
    def __init__(self, user):
        self.user = user

    def connectionMade(self) : 
     recvline.HistoricRecvLine.connectionMade(self)
        self.terminal.write("Welcome to my test SSH server.")
        self.terminal.nextLine() 
        self.do_help()
        self.showPrompt()

    def showPrompt(self): 
        self.terminal.write("$ ")

    def getCommandFunc(self, cmd):
        return getattr(self, ‘do_’ + cmd, None)

    def lineReceived(self, line):
        line = line.strip()
        if line: 
            cmdAndArgs = line.split()
            cmd = cmdAndArgs[0]
            args = cmdAndArgs[1:]
            func = self.getCommandFunc(cmd)
            if func: 
               try:
                   func(*args)
               except Exception, e: 
                   self.terminal.write("Error: %s" % e)
                   self.terminal.nextLine()
            else:
               self.terminal.write("No such command.")
               self.terminal.nextLine()
        self.showPrompt()

    def do_help(self, cmd=”):
        "Get help on a command. Usage: help command"
        if cmd: 
            func = self.getCommandFunc(cmd)
            if func:
                self.terminal.write(func.__doc__)
                self.terminal.nextLine()
                return

        publicMethods = filter(
            lambda funcname: funcname.startswith(‘do_’), dir(self)) 
        commands = [cmd.replace(‘do_’, ”, 1) for cmd in publicMethods] 
        self.terminal.write("Commands: " + " ".join(commands))
        self.terminal.nextLine()

    def do_echo(self, *args):
        "Echo a string. Usage: echo my line of text"
        self.terminal.write(" ".join(args)) 
        self.terminal.nextLine()

    def do_whoami(self):
        "Prints your user name. Usage: whoami"
        self.terminal.write(self.user.username)
        self.terminal.nextLine()

    def do_quit(self):
        "Ends your session. Usage: quit" 
        self.terminal.write("Thanks for playing!")
        self.terminal.nextLine() 
        self.terminal.loseConnection()

    def do_clear(self):
        "Clears the screen. Usage: clear" 
        self.terminal.reset()

class SSHDemoAvatar(avatar.ConchUser): 
    implements(conchinterfaces.ISession)

    def __init__(self, username): 
        avatar.ConchUser.__init__(self) 
        self.username = username 
        self.channelLookup.update({‘session’:session.SSHSession})

    def openShell(self, protocol): 
        serverProtocol = insults.ServerProtocol(SSHDemoProtocol, self)
        serverProtocol.makeConnection(protocol)
        protocol.makeConnection(session.wrapProtocol(serverProtocol))

    def getPty(self, terminal, windowSize, attrs):
        return None

    def execCommand(self, protocol, cmd): 
        raise NotImplementedError

    def closed(self):
        pass

class SSHDemoRealm:
    implements(portal.IRealm)

    def requestAvatar(self, avatarId, mind, *interfaces):
        if conchinterfaces.IConchUser in interfaces:
            return interfaces[0], SSHDemoAvatar(avatarId), lambda: None
        else:
            raise Exception, "No supported interfaces found."

def getRSAKeys():
    if not (os.path.exists(‘public.key’) and os.path.exists(‘private.key’)):
        # generate a RSA keypair
        print "Generating RSA keypair…" 
        from Crypto.PublicKey import RSA 
        KEY_LENGTH = 1024
        rsaKey = RSA.generate(KEY_LENGTH, common.entropy.get_bytes)
        publicKeyString = keys.makePublicKeyString(rsaKey) 
        privateKeyString = keys.makePrivateKeyString(rsaKey)
        # save keys for next time
        file(‘public.key’, ‘w+b’).write(publicKeyString)
        file(‘private.key’, ‘w+b’).write(privateKeyString)
        print "done."
    else:
        publicKeyString = file(‘public.key’).read()
        privateKeyString = file(‘private.key’).read() 
    return publicKeyString, privateKeyString

if __name__ == "__main__":
    sshFactory = factory.SSHFactory() 
    sshFactory.portal = portal.Portal(SSHDemoRealm())
    users = {‘admin’: ‘aaa’, ‘guest’: ‘bbb’}
    sshFactory.portal.registerChecker(
 checkers.InMemoryUsernamePasswordDatabaseDontUse(**users))

    pubKeyString, privKeyString =
getRSAKeys()
    sshFactory.publicKeys = {
        ‘ssh-rsa’: keys.getPublicKeyString(data=pubKeyString)}
    sshFactory.privateKeys = {
        ‘ssh-rsa’: keys.getPrivateKeyObject(data=privKeyString)}

    from twisted.internet import reactor 
    reactor.listenTCP(2222, sshFactory) 
    reactor.run()

{mospagebreak title=Setting Up a Custom SSH Server continued}

sshserver.py will run an SSH server on port 2222. Connect to this server with an SSH client using the username admin and password aaa, and try typing some commands:

$ ssh admin@localhost -p 2222 
admin@localhost’s password: aaa

>>> Welcome to my test SSH server.  
Commands: clear echo help quit whoami
$ whoami
admin
$ help echo
Echo a string. Usage: echo my line of text
$ echo hello SSH world!
hello SSH world!
$ quit

Connection to localhost closed.

Ok if anyone else is having this problem this may be your answer:

If you are trying to hide absolute positioned elements make sure the container of those absolute positioned elements is relatively positioned.

A call to EntityManager.flush(); will force the data to be persist in the database immediately as EntityManager.persist() will not (depending on how the EntityManager is configured : FlushModeType (AUTO or COMMIT) by default it's set to AUTO and a flush will be done automatically by if it's set to COMMIT the persitence of the data to the underlying database will be delayed when the transaction is commited).

Are you calling getWidth() before the view is actually laid out on the screen?

A common mistake made by new Android developers is to use the width and height of a view inside its constructor. When a view’s constructor is called, Android doesn’t know yet how big the view will be, so the sizes are set to zero. The real sizes are calculated during the layout stage, which occurs after construction but before anything is drawn. You can use the onSizeChanged() method to be notified of the values when they are known, or you can use the getWidth() and getHeight() methods later, such as in the onDraw() method.

I also faced that problem and there are two ways to solve this in laravel.

1. first one is you can set the default value as null. I will show you an example:

   public function up()
   {
       Schema::create('users', function (Blueprint $table) {
           $table->increments('id');
           $table->string('name');
           $table->string('gender');
           $table->string('slug');
           $table->string('pic')->nullable();
           $table->string('email')->unique();
           $table->string('password');
           $table->rememberToken();
           $table->timestamps();
       });
   }
   

as the above example, you can set nullable() for that feature. then when you are inserting data MySQL set the default value as null.

2. second one is in your model set your input field in protected $fillable field. as example:

   protected $fillable = [
       'name', 'email', 'password', 'slug', 'gender','pic'
   ];
   

I think the second one is fine than the first one and also you can set nullable feature as well as fillable in the same time without a problem.

This seems a little bit like homework. So I'll give you some hints. The good news is that you're almost there! You've done most of the hard work already!

• Think about a construct that can help you iterate over the array. Is there some sort of construct (a loop perhaps?) that you can use to iterate over each location in the array?
• Within this construct, for each iteration of the loop, you will assign the value returned by randomFill() to the current location of the array.

Note: Your array is double, but you are returning ints from randomFill. So there's something you need to fix there.

I think saving dicts in a list is not an ideal solution here proposed by @falsetru.

Better way is, iterating through dicts and saving them to .json by adding a new line.

our 2 dictionaries are

d1 = {'a':1}

d2 = {'b':2}

you can write them to .json

import json
with open('sample.json','a') as sample:
    for dict in [d1,d2]:
        sample.write('{}\n'.format(json.dumps(dict)))

and you can read json file without any issues

with open('sample.json','r') as sample:
    for line in sample:
        line = json.loads(line.strip())

simple and efficient

The standard .NET way of doing this is to read from the Process' StandardOutput stream. There is an example in the linked MSDN docs. Similar, you can read from StandardError, and write to StandardInput.

In my experience the solution is twofold:

1. You need to handle changes to the development database that are done by multiple developers during development.

2. You need to handle database upgrades in customers sites.

In order to handle #1 you'll need a strong database diff/merge tool. The best tool should be able to perform automatic merge as much as possible while allowing you to resolve unhandled conflicts manually.

The perfect tool should handle merge operations by using a 3-way merge algorithm that brings into account the changes that were made in the THEIRS database and the MINE database, relative to the BASE database.

I wrote a commercial tool that provides manual merge support for SQLite databases and I'm currently adding support for 3-way merge algorithm for SQLite. Check it out at http://www.sqlitecompare.com

In order to handle #2 you will need an upgrade framework in place.

The basic idea is to develop an automatic upgrade framework that knows how to upgrade from an existing SQL schema to the newer SQL schema and can build an upgrade path for every existing DB installation.

Check out my article on the subject in http://www.codeproject.com/KB/database/sqlite_upgrade.aspx to get a general idea of what I'm talking about.

Good Luck

Liron Levi

use a negative character class:

[^,;]+

cmd.Parameters.Add(String parameterName, Object value) is deprecated now. Instead use cmd.Parameters.AddWithValue(String parameterName, Object value)

Add(String parameterName, Object value) has been deprecated. Use AddWithValue(String parameterName, Object value)

There is no difference in terms of functionality. The reason they deprecated the cmd.Parameters.Add(String parameterName, Object value) in favor of AddWithValue(String parameterName, Object value) is to give more clarity. Here is the MSDN reference for the same

private void button1_Click(object sender, EventArgs e) {
  using (SqlConnection con = new SqlConnection(dc.Con)) {
    using (SqlCommand cmd = new SqlCommand("sp_Add_contact", con)) {
      cmd.CommandType = CommandType.StoredProcedure;

      cmd.Parameters.AddWithValue("@FirstName", SqlDbType.VarChar).Value = txtFirstName.Text;
      cmd.Parameters.AddWithValue("@LastName", SqlDbType.VarChar).Value = txtLastName.Text;

      con.Open();
      cmd.ExecuteNonQuery();
    }
  }
}

I found the generated set of drop statements useful, and recommend these tweaks:

1. Limit the generated drops to your database like this:

SELECT concat('DROP TABLE IF EXISTS `', table_name, '`;')
FROM information_schema.tables
WHERE table_schema = 'MyDatabaseName';

Note 1: This does not execute the DROP statements, it just gives you a list of them. You will need to cut and paste the output into your SQL engine to execute them.

Note 2: If you have VIEWs, you'll have to correct each DROP TABLE `VIEW_NAME` statement to DROP VIEW `VIEW_NAME` manually.

2. Note, per http://dev.mysql.com/doc/refman/5.5/en/drop-table.html, dropping with cascade is pointless / misleading:

"RESTRICT and CASCADE are permitted to make porting easier. In MySQL 5.5, they do nothing."

Therefore, in order for the drop statements to work if you need:

SET FOREIGN_KEY_CHECKS = 0

This will disable referential integrity checks - so when you are done performing the drops you need, you will want to reset key checking with

SET FOREIGN_KEY_CHECKS = 1

3. The final execution should look like:

SET FOREIGN_KEY_CHECKS = 0;
-- Your semicolon separated list of DROP statements here
SET FOREIGN_KEY_CHECKS = 1;

NB: to use output of SELECT easier, mysql -B option can help.

The answer by Georgy is the cleanest to implement, by far. Had to chase this down, since the brycboe example, while simple as well, had issues with colinearity.

Code for testing:

#!/usr/bin/python
#
# Notes on intersection:
#
# https://bryceboe.com/2006/10/23/line-segment-intersection-algorithm/
#
# https://stackoverflow.com/questions/3838329/how-can-i-check-if-two-segments-intersect

from shapely.geometry import LineString

class Point:
    def __init__(self,x,y):
        self.x = x
        self.y = y

def ccw(A,B,C):
    return (C.y-A.y)*(B.x-A.x) > (B.y-A.y)*(C.x-A.x)

def intersect(A,B,C,D):
    return ccw(A,C,D) != ccw(B,C,D) and ccw(A,B,C) != ccw(A,B,D)


def ShapelyIntersect(A,B,C,D):
    return LineString([(A.x,A.y),(B.x,B.y)]).intersects(LineString([(C.x,C.y),(D.x,D.y)]))


a = Point(0,0)
b = Point(0,1)
c = Point(1,1)
d = Point(1,0)

'''
Test points:

b(0,1)   c(1,1)




a(0,0)   d(1,0)
'''

# F
print(intersect(a,b,c,d))

# T
print(intersect(a,c,b,d))
print(intersect(b,d,a,c))
print(intersect(d,b,a,c))

# F
print(intersect(a,d,b,c))

# same end point cases:
print("same end points")
# F - not intersected
print(intersect(a,b,a,d))
# T - This shows as intersected
print(intersect(b,a,a,d))
# F - this does not
print(intersect(b,a,d,a))
# F - this does not
print(intersect(a,b,d,a))

print("same end points, using shapely")
# T
print(ShapelyIntersect(a,b,a,d))
# T
print(ShapelyIntersect(b,a,a,d))
# T
print(ShapelyIntersect(b,a,d,a))
# T
print(ShapelyIntersect(a,b,d,a))

I'm not sure when this was written, but currently to add or remove a default from a column in a migration, you can use the following:

change_column_null :products, :name, false

Rails 5:

change_column_default :products, :approved, from: true, to: false

http://edgeguides.rubyonrails.org/active_record_migrations.html#changing-columns

Rails 4.2:

change_column_default :products, :approved, false

http://guides.rubyonrails.org/v4.2/active_record_migrations.html#changing-columns

Which is a neat way of avoiding looking through your migrations or schema for the column specifications.

res/drawble/circle_shape.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>

        <shape android:shape="oval">
            <solid android:color="#e42828"/>
            <stroke android:color="#3b91d7" android:width="5dp"/>
            <!-- Set the same value for both width and height to get a circular shape -->
            <size android:width="250dp" android:height="250dp"/>
        </shape>
    </item>
</selector>

Having the AVD android emulator:

1. Open the simulator ( "..\android-sdk\AVD Manager.exe")
2. Go to Tools
3. Go to Options
4. On Proxy settings:

On the first field(HTTP Proxy Server) set only the IP address where is your proxy (XXX.XXX.XXX.XXX) on the second field set the port of your proxy (example: 8080)

Then, click Close on the window and start the emulator

---- Added ... Then the alex steps works on my case:

Click on Menu
Click on Settings
Click on Wireless & Networks
Go to Mobile Networks
Go to Access Point Names
Here you will Telkila Internet (or other name), click on it.
In the Edit access point section, input the "proxy" and "port"

In React Native 0.43: (Maybe later than 0.43 is OK.)

_handlePress(event) {
    var username= this.refs.username._lastNativeText;

GoJS supports this, with its State Chart example, that supports dragging and dropping of elements, and editing of connections.

This answer is based off of Walter Northwoods' answer.

Added a few optional parameters for creating "future safe" sequences.

CREATE SEQUENCE <NAME>
  START WITH 1
  INCREMENT BY 1
  NO MAXVALUE
  NO CYCLE
  CACHE 10;

The most cross-compatible way I've found of doing this is not very obvious. You need to remove the float from the second column, and apply overflow:hidden to it. Although this would seem to be hiding any content that goes outside of the div, it actually forces the div to stay within its parent.

Using your code, this is an example of how it could be done:

<div style="width: 100px; float: left;">menu</div>
<div style="overflow: hidden;">content</div>

Hope this is useful to anyone having this issue, it's what I found works the best for the site I was building, after trying to get it to adjust to other resolutions. Unfortunately, this doesn't to work if you include a right-floated div after the content as well, if anyone knows a good way to get that to work, with good IE compatibility, I'd be very happy to hear it.

New, better option using display: flex;

Now that the Flexbox model is fairly widely implemented, I'd actually recommend using it instead, since it allows much more flexibility with the layout. Here's a simple two-column like the original:

<div style="display: flex;">
    <div style="width: 100px;">menu</div>
    <div style="flex: 1;">content</div>
</div>

And here's a three-column with a flexible-width center column!

<div style="display: flex;">
    <div style="width: 100px;">menu</div>
    <div style="flex:1;">content</div>
    <div style="width: 100px;">sidebar</div>
</div>

I added this on my project and it seems to work:

HTMLElement.prototype.prependHtml = function (element) {
    const div = document.createElement('div');
    div.innerHTML = element;
    this.insertBefore(div, this.firstChild);
};

HTMLElement.prototype.appendHtml = function (element) {
    const div = document.createElement('div');
    div.innerHTML = element;
    while (div.children.length > 0) {
        this.appendChild(div.children[0]);
    }
};

Example:

document.body.prependHtml(`<a href="#">Hello World</a>`);
document.body.appendHtml(`<a href="#">Hello World</a>`);

This is a general solution to loading data into a C++ program, and uses the readline function. This could be modified for CSV files, but the delimiter is a space here.

int n = 5, p = 2;

int X[n][p];

ifstream myfile;

myfile.open("data.txt");

string line;
string temp = "";
int a = 0; // row index 

while (getline(myfile, line)) { //while there is a line
     int b = 0; // column index
     for (int i = 0; i < line.size(); i++) { // for each character in rowstring
          if (!isblank(line[i])) { // if it is not blank, do this
              string d(1, line[i]); // convert character to string
              temp.append(d); // append the two strings
        } else {
              X[a][b] = stod(temp);  // convert string to double
              temp = ""; // reset the capture
              b++; // increment b cause we have a new number
        }
    }

  X[a][b] = stod(temp);
  temp = "";
  a++; // onto next row
}

In Python, how do you get the last element of a list?

To just get the last element,

• without modifying the list, and
• assuming you know the list has a last element (i.e. it is nonempty)

pass -1 to the subscript notation:

>>> a_list = ['zero', 'one', 'two', 'three']
>>> a_list[-1]
'three'

Explanation

Indexes and slices can take negative integers as arguments.

I have modified an example from the documentation to indicate which item in a sequence each index references, in this case, in the string "Python", -1 references the last element, the character, 'n':

 +---+---+---+---+---+---+
 | P | y | t | h | o | n |
 +---+---+---+---+---+---+
   0   1   2   3   4   5 
  -6  -5  -4  -3  -2  -1

>>> p = 'Python'
>>> p[-1]
'n'

Assignment via iterable unpacking

This method may unnecessarily materialize a second list for the purposes of just getting the last element, but for the sake of completeness (and since it supports any iterable - not just lists):

>>> *head, last = a_list
>>> last
'three'

The variable name, head is bound to the unnecessary newly created list:

>>> head
['zero', 'one', 'two']

If you intend to do nothing with that list, this would be more apropos:

*_, last = a_list

Or, really, if you know it's a list (or at least accepts subscript notation):

last = a_list[-1]

In a function

A commenter said:

I wish Python had a function for first() and last() like Lisp does... it would get rid of a lot of unnecessary lambda functions.

These would be quite simple to define:

def last(a_list):
    return a_list[-1]

def first(a_list):
    return a_list[0]

Or use operator.itemgetter:

>>> import operator
>>> last = operator.itemgetter(-1)
>>> first = operator.itemgetter(0)

In either case:

>>> last(a_list)
'three'
>>> first(a_list)
'zero'

Special cases

If you're doing something more complicated, you may find it more performant to get the last element in slightly different ways.

If you're new to programming, you should avoid this section, because it couples otherwise semantically different parts of algorithms together. If you change your algorithm in one place, it may have an unintended impact on another line of code.

I try to provide caveats and conditions as completely as I can, but I may have missed something. Please comment if you think I'm leaving a caveat out.

Slicing

A slice of a list returns a new list - so we can slice from -1 to the end if we are going to want the element in a new list:

>>> a_slice = a_list[-1:]
>>> a_slice
['three']

This has the upside of not failing if the list is empty:

>>> empty_list = []
>>> tail = empty_list[-1:]
>>> if tail:
...     do_something(tail)

Whereas attempting to access by index raises an IndexError which would need to be handled:

>>> empty_list[-1]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
IndexError: list index out of range

But again, slicing for this purpose should only be done if you need:

• a new list created
• and the new list to be empty if the prior list was empty.

for loops

As a feature of Python, there is no inner scoping in a for loop.

If you're performing a complete iteration over the list already, the last element will still be referenced by the variable name assigned in the loop:

>>> def do_something(arg): pass
>>> for item in a_list:
...     do_something(item)
...     
>>> item
'three'

This is not semantically the last thing in the list. This is semantically the last thing that the name, item, was bound to.

>>> def do_something(arg): raise Exception
>>> for item in a_list:
...     do_something(item)
...
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "<stdin>", line 1, in do_something
Exception
>>> item
'zero'

Thus this should only be used to get the last element if you

• are already looping, and
• you know the loop will finish (not break or exit due to errors), otherwise it will point to the last element referenced by the loop.

Getting and removing it

We can also mutate our original list by removing and returning the last element:

>>> a_list.pop(-1)
'three'
>>> a_list
['zero', 'one', 'two']

But now the original list is modified.

(-1 is actually the default argument, so list.pop can be used without an index argument):

>>> a_list.pop()
'two'

Only do this if

• you know the list has elements in it, or are prepared to handle the exception if it is empty, and
• you do intend to remove the last element from the list, treating it like a stack.

These are valid use-cases, but not very common.

Saving the rest of the reverse for later:

I don't know why you'd do it, but for completeness, since reversed returns an iterator (which supports the iterator protocol) you can pass its result to next:

>>> next(reversed([1,2,3]))
3

So it's like doing the reverse of this:

>>> next(iter([1,2,3]))
1

But I can't think of a good reason to do this, unless you'll need the rest of the reverse iterator later, which would probably look more like this:

reverse_iterator = reversed([1,2,3])
last_element = next(reverse_iterator)

use_later = list(reverse_iterator)

and now:

>>> use_later
[2, 1]
>>> last_element
3

We finally found an answer of sorts. First, the problem: the table always sizes itself around the content, rather than forcing the content to fit in the table. That limits your options.

We did it by setting the content div to display:none, letting the table size itself, and then in javascript setting the height and width of the content div to the inner height and width of the enclosing td tag. Show the content div. Repeat the process when the window is resized.

I am suggesting you to stop the images first and then remove.

You could go like:

$ docker stop $(docker ps -a)
$ docker rm $(docker ps -a)

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

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

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

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

The basic process is the same either way:

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

A simple example would be:

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

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

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

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

There is even a section about Dealing with forms.

I'd like to add complementary information: In postman app you may use the "request" object to see your subsituted input data. (refer to https://www.getpostman.com/docs/postman/scripts/postman_sandbox in paragraph "Request/response related properties", ie.

console.log("header : " + request.headers["Content-Type"]);
console.log("body : " + request.data);
console.log("url : " + request.url);

I didn't test for header substitution but it works for url and body.

Alex

In Python the definition of package is very simple. Like Java the hierarchical structure and the directory structure are the same. But you have to have __init__.py in a package. I will explain the __init__.py file with the example below:

package_x/
|--  __init__.py
|--    subPackage_a/
|------  __init__.py
|------  module_m1.py
|--    subPackage_b/
|------  __init__.py
|------  module_n1.py
|------  module_n2.py
|------  module_n3.py

__init__.py can be empty, as long as it exists. It indicates that the directory should be regarded as a package. Of course, __init__.py can also set the appropriate content.

If we add a function in module_n1:

def function_X():
    print "function_X in module_n1"
    return

After running:

>>>from package_x.subPackage_b.module_n1 import function_X
>>>function_X()

function_X in module_n1 

Then we followed the hierarchy package and called module_n1 the function. We can use __init__.py in subPackage_b like this:

__all__ = ['module_n2', 'module_n3']

After running:

>>>from package_x.subPackage_b import * 
>>>module_n1.function_X()

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named module_n1

Hence using * importing, module package is subject to __init__.py content.

I used the code of @Spajus and wrote a more extended jQuery plugin.

I wrote these four jQuery functions:

• upperFirstAll() to capitalize ALL words in an inputfield
• upperFirst() to capitalize only the FIRST word
• upperCase() to convert the hole text to upper case
• lowerCase() to convert the hole text to lower case

You can use and chain them like any other jQuery function:
$('#firstname').upperFirstAll()

My complete jQuery plugin:

(function ($) {
    $.fn.extend({

    // With every keystroke capitalize first letter of ALL words in the text
    upperFirstAll: function() {
        $(this).keyup(function(event) {
            var box = event.target;
            var txt = $(this).val();
            var start = box.selectionStart;
            var end = box.selectionEnd;

            $(this).val(txt.toLowerCase().replace(/^(.)|(\s|\-)(.)/g,
            function(c) {
                return c.toUpperCase();
            }));
            box.setSelectionRange(start, end);
        });
        return this;
    },

    // With every keystroke capitalize first letter of the FIRST word in the text
    upperFirst: function() {
        $(this).keyup(function(event) {
            var box = event.target;
            var txt = $(this).val();
            var start = box.selectionStart;
            var end = box.selectionEnd;

            $(this).val(txt.toLowerCase().replace(/^(.)/g,
            function(c) {
                return c.toUpperCase();
            }));
            box.setSelectionRange(start, end);
        });
        return this;
    },

    // Converts with every keystroke the hole text to lowercase
    lowerCase: function() {
        $(this).keyup(function(event) {
            var box = event.target;
            var txt = $(this).val();
            var start = box.selectionStart;
            var end = box.selectionEnd;

            $(this).val(txt.toLowerCase());
            box.setSelectionRange(start, end);
        });
        return this;
    },

    // Converts with every keystroke the hole text to uppercase
    upperCase: function() {
        $(this).keyup(function(event) {
            var box = event.target;
            var txt = $(this).val();
            var start = box.selectionStart;
            var end = box.selectionEnd;

            $(this).val(txt.toUpperCase());
            box.setSelectionRange(start, end);
        });
        return this;
    }

    });
}(jQuery));

Groetjes :)

The memory for a & b is not allocated by you. The compiler is free to choose a read-only memory location to store the characters. So if you try to change it may result in seg fault. So I suggest you to create a character array yourself. Something like: char a[10]; strcpy(a, "Hello");

This works cross browser

var img = new Image();
$(img).bind('load error', function(e)
{
    $.data(img, 'dimensions', { 'width': img.width, 'height': img.height });                    
});
img.src = imgs[i];              

get the dimensions by using

$(this).data('dimensions').width;
$(this).data('dimensions').height;

Cheers!

Jquery 3.0 has some breaking changes that remove certain methods due to conflicts. Your error is most likely due to one of these changes such as the removal of the .load() event.

Read more in the jQuery Core 3.0 Upgrade Guide

To fix this you either need to rewrite the code to be compatible with Jquery 3.0 or else you can use the JQuery Migrate plugin which restores the deprecated and/or removed APIs and behaviours.

If above answers don't work maybe you didn't add return value into getItem method in the custom adapter see this question and check out first answer.

You can just call a method on your scope to reverse it for you, like this:

<!doctype html>
<html ng-app="myApp">
<head>
    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://code.angularjs.org/1.0.5/angular.min.js"></script>
    <script>
    angular.module('myApp', []).controller('Ctrl', function($scope) {
        $scope.items = [1, 2, 3, 4];
        $scope.reverse = function(array) {
            var copy = [].concat(array);
            return copy.reverse();
        }
    });
    </script>
</head>
<body ng-controller="Ctrl">
    <ul>
        <li ng-repeat="item in items">{{item}}</li>
    </ul>
    <ul>
        <li ng-repeat="item in reverse(items)">{{item}}</li>
    </ul>
</body>
</html>

Note that the $scope.reverse creates a copy of the array since Array.prototype.reverse modifies the original array.

By using below method you can convert java.math.BigDecimal to String.

   BigDecimal bigDecimal = new BigDecimal("10.0001");
   String bigDecimalString = String.valueOf(bigDecimal.doubleValue());
   System.out.println("bigDecimal value in String: "+bigDecimalString);

Output:
bigDecimal value in String: 10.0001

The "onchange" is only fired when the attribute is programmatically changed or when the user makes a change and then focuses away from the field.

Have you looked at using YUI's calendar object? I've coded up a solution that puts the yui calendar inside a yui panel and hides the panel until an associated image is clicked. I'm able to see changes from either.

http://developer.yahoo.com/yui/examples/calendar/formtxt.html

I wanted to just add this as a comment to the previous answer, but I can't. I tried Dave Sexton's answer but had problems if the count was 1. This forces an array even if one object is returned.

([System.Object[]](gci c:\pstback\ -Filter *.pst | 
    ? { $_.LastWriteTime -gt (Get-Date).AddDays(-3)})).Count

It still doesn't return zero if empty, but testing '-lt 1' works.

'temp_C' is a key inside dictionary that is inside a list that is inside a dictionary

This way works:

wjson['data']['current_condition'][0]['temp_C']
>> '10'

All of the variables listed in .env file will be loaded into the $_ENV PHP super-global when your application receives a request. Check out the Laravel configuration page.

$_ENV['yourkeyhere'];

Assuming dateTime1 and dateTime2 are DateTime values:

var diffInSeconds = (dateTime1 - dateTime2).TotalSeconds;

In your case, you 'd use DateTime.Now as one of the values and the time in the list as the other. Be careful of the order, as the result can be negative if dateTime1 is earlier than dateTime2.

Module new is deprecated since python 2.6 and removed in 3.0, use types

see http://docs.python.org/library/new.html

In the example below I've deliberately removed return value from patch_me() function. I think that giving return value may make one believe that patch returns a new object, which is not true - it modifies the incoming one. Probably this can facilitate a more disciplined use of monkeypatching.

import types

class A(object):#but seems to work for old style objects too
    pass

def patch_me(target):
    def method(target,x):
        print "x=",x
        print "called from", target
    target.method = types.MethodType(method,target)
    #add more if needed

a = A()
print a
#out: <__main__.A object at 0x2b73ac88bfd0>  
patch_me(a)    #patch instance
a.method(5)
#out: x= 5
#out: called from <__main__.A object at 0x2b73ac88bfd0>
patch_me(A)
A.method(6)        #can patch class too
#out: x= 6
#out: called from <class '__main__.A'>

You should create a structure that represents JSON keys (in case if you exactly know it) and then you can easily deserialize JSON string into your structure. In my examle I've deserialized a response from Google Cloud Message server:

class templateResponse
{
    public String multicast_id;
    public String success;
    public String failure;
    public String canonical_ids;
    public Result[] results;

    public class Result
    {
        public String message_id;
        public String registration_id;
        public String error;
    };
}

incoming JSON was:

"\"multicast_id\":7400896764380883211,\"success\":1,\"failure\":0,\"canonical_ids\":0,\"results\":[{\"message_id\":\"0:1351777805148960%39895cf0f9fd7ecd\"}]}"

So, use

templateResponse result = new JavaScriptSerializer().Deserialize<templateResponse>(json);

and you will get deserialized result object

Debugging by raising exceptions is far easier than squinting through print log statements, and for most bugs, its generally much faster than opening up an irb debugger like pry or byebug. Those tools should not always be your first step.

Debugging Ruby/Rails Quickly:

1. Fast Method: Raise an Exception then and .inspect its result

The fastest way to debug Ruby (especially Rails) code is to raise an exception along the execution path of your code while calling .inspect on the method or object (e.g. foo):

raise foo.inspect

In the above code, raise triggers an Exception that halts execution of your code, and returns an error message that conveniently contains .inspect information about the object/method (i.e. foo) on the line that you're trying to debug.

This technique is useful for quickly examining an object or method (e.g. is it nil?) and for immediately confirming whether a line of code is even getting executed at all within a given context.

2. Fallback: Use a ruby IRB debugger like byebug or pry

Only after you have information about the state of your codes execution flow should you consider moving to a ruby gem irb debugger like pry or byebug where you can delve more deeply into the state of objects within your execution path.

General Beginner Advice

When you are trying to debug a problem, good advice is to always: Read The !@#$ing Error Message (RTFM)

That means reading error messages carefully and completely before acting so that you understand what it's trying to tell you. When you debug, ask the following mental questions, in this order, when reading an error message:

1. What class does the error reference? (i.e. do I have the correct object class or is my object nil?)
2. What method does the error reference? (i.e. is their a type in the method; can I call this method on this type/class of object?)
3. Finally, using what I can infer from my last two questions, what lines of code should I investigate? (remember: the last line of code in the stack trace is not necessarily where the problem lies.)

In the stack trace pay particular attention to lines of code that come from your project (e.g. lines starting with app/... if you are using Rails). 99% of the time the problem is with your own code.

To illustrate why interpreting in this order is important...

E.g. a Ruby error message that confuses many beginners:

You execute code that at some point executes as such:

@foo = Foo.new

...

@foo.bar

and you get an error that states:

undefined method "bar" for Nil:nilClass

Beginners see this error and think the problem is that the method bar is undefined. It's not. In this error the real part that matters is:

for Nil:nilClass

for Nil:nilClass means that @foo is Nil! @foo is not a Foo instance variable! You have an object that is Nil. When you see this error, it's simply ruby trying to tell you that the method bar doesn't exist for objects of the class Nil. (well duh! since we are trying to use a method for an object of the class Foo not Nil).

Unfortunately, due to how this error is written (undefined method "bar" for Nil:nilClass) its easy to get tricked into thinking this error has to do with bar being undefined. When not read carefully this error causes beginners to mistakenly go digging into the details of the bar method on Foo, entirely missing the part of the error that hints that the object is of the wrong class (in this case: nil). It's a mistake that's easily avoided by reading error messages in their entirety.

Summary:

Always carefully read the entire error message before beginning any debugging. That means: Always check the class type of an object in an error message first, then its methods, before you begin sleuthing into any stacktrace or line of code where you think the error may be occurring. Those 5 seconds can save you 5 hours of frustration.

tl;dr: Don't squint at print logs: raise exceptions or use an irb debugger instead. Avoid rabbit holes by reading errors carefully before debugging.

In Lubuntu I had to deal with the opposite situation. Skype start running after booting and I found in ~/.config/autostart/ the file skypeforlinux.desktop. The content of the file is as follows:

[Desktop Entry]
Name=Skype for Linux
Comment=Skype Internet Telephony
Exec=/usr/bin/skypeforlinux
Icon=skypeforlinux
Terminal=false
Type=Application
StartupNotify=false
X-GNOME-Autostart-enabled=true

Deleting this file helped me.

Edit: By request, I added a check to make sure the value entered was within the ASCII range of 0 to 127. Whether you want to limit this is up to you. In C# (and I believe .NET in general), chars are represented using UTF-16, so any valid UTF-16 character value could be cast into it. However, it is possible a system does not know what every Unicode character should look like so it may show up incorrectly.

// Read a line of input
string input = Console.ReadLine();

int value;
// Try to parse the input into an Int32
if (Int32.TryParse(input, out value)) {
    // Parse was successful
    if (value >= 0 and value < 128) {
        //value entered was within the valid ASCII range
        //cast value to a char and print it
        char c = (char)value;
        Console.WriteLine(c);
    }
}

My problem was overwriting my query string parameters with default values:

routes.MapRoute(
    "apiRoute", 
    "api/{action}/{key}", 
    new { controller = "Api", action = "Prices", key = ""}
);

No matter what I plugged into query string or how only key="" results.

Then got rid of default overwrites using UrlParameter.Optional:

routes.MapRoute(
    "apiRoute", 
    "api/{action}/{key}", 
    new { controller = "Api", action = "Prices", key = UrlParameter.Optional }
);

now

prices/{key} 

or

prices?key={key} 

both work fine.

you can try this too. I use just framelayout.

 <FrameLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="@drawable/cover"
                android:gravity="bottom">

                <TextView
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAppearance="?android:attr/textAppearanceMedium"
                    android:text="Hello !"
                    android:id="@+id/welcomeTV"
                    android:textColor="@color/textColor"
                    android:layout_gravity="left|bottom" />
            </FrameLayout>

Try this:

BufferedReader br = new BufferedReader(new FileReader("java_module_name/src/file_name.txt"));

for x in y[:-1]

If y is a generator, then the above will not work.

It seems that Luiggi Mendoza and joey rohan both already answered this, but I think it can be clarified a little.

You can write it as a single if statement:

if (inventory.contains("bread") && !inventory.contains("water")) {
    // do something
}

Do a SELECT COUNT(*) FROM ... query instead.

OR

int size =0;
if (rs != null) 
{
  rs.last();    // moves cursor to the last row
  size = rs.getRow(); // get row id 
}

In either of the case, you won't have to loop over the entire data.

Both pandas and matplotlib.dates use matplotlib.units for locating the ticks.

But while matplotlib.dates has convenient ways to set the ticks manually, pandas seems to have the focus on auto formatting so far (you can have a look at the code for date conversion and formatting in pandas).

So for the moment it seems more reasonable to use matplotlib.dates (as mentioned by @BrenBarn in his comment).

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt 
import matplotlib.dates as dates

idx = pd.date_range('2011-05-01', '2011-07-01')
s = pd.Series(np.random.randn(len(idx)), index=idx)

fig, ax = plt.subplots()
ax.plot_date(idx.to_pydatetime(), s, 'v-')
ax.xaxis.set_minor_locator(dates.WeekdayLocator(byweekday=(1),
                                                interval=1))
ax.xaxis.set_minor_formatter(dates.DateFormatter('%d\n%a'))
ax.xaxis.grid(True, which="minor")
ax.yaxis.grid()
ax.xaxis.set_major_locator(dates.MonthLocator())
ax.xaxis.set_major_formatter(dates.DateFormatter('\n\n\n%b\n%Y'))
plt.tight_layout()
plt.show()

(my locale is German, so that Tuesday [Tue] becomes Dienstag [Di])

You could add \singlespacing near the beginning of your table. See the setspace instructions for more options.

On mac you can install the cli using brew:

brew install awsebcli

With the command line tool you can then ssh with:

eb ssh environment-name

and also do other operations. This assumes you have added a security group that allows ssh from your ip.

Here is the most inefficient way to get the count in all answers. But you'll get a Dictionary that contains key-value pairs as a bonus.

string test = "key1=value1&key2=value2&key3=value3";

var keyValues = Regex.Matches(test, @"([\w\d]+)=([\w\d]+)[&$]*")
                     .Cast<Match>()
                     .ToDictionary(m => m.Groups[1].Value, m => m.Groups[2].Value);

var count = keyValues.Count - 1;

You should give the container an id and use that in your custom css file (which should be linked after the bootstrap css):

#container { box-shadow: values }

If you would like to handle quotes:

sudo -s -- <<EOF
id
pwd
echo "Done."
EOF

No, this isn't possible. In order for you to send messages of any kind to a Facebook user, you need that user's permission to do so.

If someone logs into your site with Facebook Connect, they are explicitly agreeing to share their Facebook data with your site, and you will then be able to send that person a message through the normal channels. You would also be able to fetch their friend list. However, you can not send messages to the friends.

The brief difference in layman's term is:

• If you are working on an interface or module that provides support to other modules by exposing the members of the stated dependency you should be using 'api'.
• If you are making an application or module that is going to implement or use the stated dependency internally, use 'implementation'.
• 'compile' worked same as 'api', however, if you are only implementing or using any library, 'implementation' will work better and save you resources.

read the answer by @aldok for a comprehensive example.

With Git 2.3.2+ (Q1 2015), there is one other case where Git will not follow symlink anymore: see commit e0d201b by Junio C Hamano (gitster) (main Git maintainer)

apply: do not touch a file beyond a symbolic link

Because Git tracks symbolic links as symbolic links, a path that has a symbolic link in its leading part (e.g. path/to/dir/file, where path/to/dir is a symbolic link to somewhere else, be it inside or outside the working tree) can never appear in a patch that validly applies, unless the same patch first removes the symbolic link to allow a directory to be created there.

Detect and reject such a patch.

Similarly, when an input creates a symbolic link path/to/dir and then creates a file path/to/dir/file, we need to flag it as an error without actually creating path/to/dir symbolic link in the filesystem.

Instead, for any patch in the input that leaves a path (i.e. a non deletion) in the result, we check all leading paths against the resulting tree that the patch would create by inspecting all the patches in the input and then the target of patch application (either the index or the working tree).

This way, we:

• catch a mischief or a mistake to add a symbolic link path/to/dir and a file path/to/dir/file at the same time,
• while allowing a valid patch that removes a symbolic link path/to/dir and then adds a file path/to/dir/file.

That means, in that case, the error message won't be a generic one like "%s: patch does not apply", but a more specific one:

affected file '%s' is beyond a symbolic link

I prefer to use NULL as it makes clear that your intent is the value represents a pointer not an arithmetic value. The fact that it's a macro is unfortunate, but since it's so widely ingrained there's little danger (unless someone does something really boneheaded). I do wish it were a keyword from the beginning, but what can you do?

That said, I have no problem with using pointers as truth values in themselves. Just as with NULL, it's an ingrained idiom.

C++09 will add the the nullptr construct which I think is long overdue.

You can download the wheel corresponding to your configuration here ("Pillow-4.1.1-cp36-cp36m-win_amd64.whl" in your case) and install it with:

pip install some-package.whl

If you have problem to install the wheel read this answer

My experience is the same as some others mentioned. The meta tag...

<meta name = "format-detection" content = "telephone=no">

...works when the website is running in Mobile Safari (i.e., with chrome) but stops working when run as a webapp (i.e., is saved to home screen and runs without chrome).

My less-than-ideal solution is to insert the values into input fields...

<input type="text" readonly="readonly" style="border:none;" value="3105551212">

It's less than ideal because, despite the border being set to none, iOS renders a multi-pixel gray bar above the field. But, it's better than seeing the number as a link.

Simple way is:

Math.Ceiling(decimal.Parse(yourNumber + ""));

function seconds_to_time($seconds){
     // extract hours
    $hours = floor($seconds / (60 * 60));

    // extract minutes
    $divisor_for_minutes = $seconds % (60 * 60);
    $minutes = floor($divisor_for_minutes / 60);

    // extract the remaining seconds
    $divisor_for_seconds = $divisor_for_minutes % 60;
    $seconds = ceil($divisor_for_seconds);

    //create string HH:MM:SS
    $ret = $hours.":".$minutes.":".$seconds;
    return($ret);
}

This still isn't automatic, as I wish there was an option for - and there should be some checking to make sure that this can only happen for fast-forward updates (which is why manually doing a pull is far safer!!), but caveats aside you can:

git fetch origin
git update-ref refs/heads/other-branch origin/other-branch

to update the position of your local branch without having to check it out.

Note: you will be losing your current branch position and moving it to where the origin's branch is, which means that if you need to merge you will lose data!

I had the same issue. I checked the version of System.Data.SqlServerCe in C:\Windows\assembly. It was 3.5.1.0. So I installed version 4.0.0 from below link (x86) and works fine.

http://www.microsoft.com/download/en/details.aspx?id=17876

Referring to the article https://blog.angularindepth.com/everything-you-need-to-know-about-the-expressionchangedafterithasbeencheckederror-error-e3fd9ce7dbb4

So the mechanics behind change detection actually works in a way that both change detection and verification digests are performed synchronously. That means, if we update properties asynchronously the values will not be updated when the verification loop is running and we will not get ExpressionChanged... error. The reason we get this error is, during the verification process, Angular sees different values then what it recorded during change detection phase. So to avoid that....

1) Use changeDetectorRef

2) use setTimeOut. This will execute your code in another VM as a macro-task. Angular will not see these changes during verification process and you will not get that error.

 setTimeout(() => {
        this.isLoading = true;
    });

3) If you really want to execute your code on same VM use like

Promise.resolve(null).then(() => this.isLoading = true);

This will create a micro-task. The micro-task queue is processed after the current synchronous code has finished executing hence the update to the property will happen after the verification step.

The answer may depend on the target OS. For example, at least one RTOS implementation I'm familiar with will allow multiple sequential "get" operations against a single OS mutex, so long as they're all from within the same thread context. The multiple gets must be replaced by an equal number of puts before another thread will be allowed to get the mutex. This differs from binary semaphores, for which only a single get is allowed at a time, regardless of thread contexts.

The idea behind this type of mutex is that you protect an object by only allowing a single context to modify the data at a time. Even if the thread gets the mutex and then calls a function that further modifies the object (and gets/puts the protector mutex around its own operations), the operations should still be safe because they're all happening under a single thread.

{
    mutexGet();  // Other threads can no longer get the mutex.

    // Make changes to the protected object.
    // ...

    objectModify();  // Also gets/puts the mutex.  Only allowed from this thread context.

    // Make more changes to the protected object.
    // ...

    mutexPut();  // Finally allows other threads to get the mutex.
}

Of course, when using this feature, you must be certain that all accesses within a single thread really are safe!

I'm not sure how common this approach is, or whether it applies outside of the systems with which I'm familiar. For an example of this kind of mutex, see the ThreadX RTOS.

Here are my "answers" (trying to be unique here, I don't actually recommend either for this particular case :-)

Using ord() and the special a <= b <= c form:

//starts_with_digit = ord('0') <= ord(mystring[0]) <= ord('9')
//I was thinking too much in C. Strings are perfectly comparable.
starts_with_digit = '0' <= mystring[0] <= '9'

(This a <= b <= c, like a < b < c, is a special Python construct and it's kind of neat: compare 1 < 2 < 3 (true) and 1 < 3 < 2 (false) and (1 < 3) < 2 (true). This isn't how it works in most other languages.)

Using a regular expression:

import re
//starts_with_digit = re.match(r"^\d", mystring) is not None
//re.match is already anchored
starts_with_digit = re.match(r"\d", mystring) is not None

You get a nice header output with the following command:

 curl -L -v -s -o /dev/null google.de

• -L, --location follow redirects
• -v, --verbose more output, indicates the direction
• -s, --silent don't show a progress bar
• -o, --output /dev/null don't show received body

Or the shorter version:

 curl -Lvso /dev/null google.de

Results in:

* Rebuilt URL to: google.de/
*   Trying 2a00:1450:4008:802::2003...
* Connected to google.de (2a00:1450:4008:802::2003) port 80 (#0)
> GET / HTTP/1.1
> Host: google.de
> User-Agent: curl/7.43.0
> Accept: */*
>
< HTTP/1.1 301 Moved Permanently
< Location: http://www.google.de/
< Content-Type: text/html; charset=UTF-8
< Date: Fri, 12 Aug 2016 15:45:36 GMT
< Expires: Sun, 11 Sep 2016 15:45:36 GMT
< Cache-Control: public, max-age=2592000
< Server: gws
< Content-Length: 218
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
<
* Ignoring the response-body
{ [218 bytes data]
* Connection #0 to host google.de left intact
* Issue another request to this URL: 'http://www.google.de/'
*   Trying 2a00:1450:4008:800::2003...
* Connected to www.google.de (2a00:1450:4008:800::2003) port 80 (#1)
> GET / HTTP/1.1
> Host: www.google.de
> User-Agent: curl/7.43.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Fri, 12 Aug 2016 15:45:36 GMT
< Expires: -1
< Cache-Control: private, max-age=0
< Content-Type: text/html; charset=ISO-8859-1
< P3P: CP="This is not a P3P policy! See https://www.google.com/support/accounts/answer/151657?hl=en for more info."
< Server: gws
< X-XSS-Protection: 1; mode=block
< X-Frame-Options: SAMEORIGIN
< Set-Cookie: NID=84=Z0WT_INFoDbf_0FIe_uHqzL9mf3DMSQs0mHyTEDAQOGY2sOrQaKVgN2domEw8frXvo4I3x3QVLqCH340HME3t1-6gNu8R-ArecuaneSURXNxSXYMhW2kBIE8Duty-_w7; expires=Sat, 11-Feb-2017 15:45:36 GMT; path=/; domain=.google.de; HttpOnly
< Accept-Ranges: none
< Vary: Accept-Encoding
< Transfer-Encoding: chunked
<
{ [11080 bytes data]
* Connection #1 to host www.google.de left intact

As you can see curl outputs both the outgoing and the incoming headers and skips the bodydata althought telling you how big the body is.

Additionally for every line the direction is indicated so that it is easy to read. I found it particular useful to trace down long chains of redirects.

The Google Play Store doesn't provide this data, so the sites must just be scraping it.

A form is not allowed to be a child element of a table, tbody or tr. Attempting to put one there will tend to cause the browser to move the form to it appears after the table (while leaving its contents — table rows, table cells, inputs, etc — behind).

You can have an entire table inside a form. You can have a form inside a table cell. You cannot have part of a table inside a form.

Use one form around the entire table. Then either use the clicked submit button to determine which row to process (to be quick) or process every row (allowing bulk updates).

HTML 5 introduces the form attribute. This allows you to provide one form per row outside the table and then associate all the form control in a given row with one of those forms using its id.

The heap is the place in memory where your dynamically allocated objects live. If you used new then it's on the heap. That's as opposed to stack space, which is where the function stack lives. If you have a local variable then that reference is on the stack. Java's heap is subject to garbage collection and the objects are usable directly.

EHCache's off-heap storage takes your regular object off the heap, serializes it, and stores it as bytes in a chunk of memory that EHCache manages. It's like storing it to disk but it's still in RAM. The objects are not directly usable in this state, they have to be deserialized first. Also not subject to garbage collection.

If you don't have a company, leave your name, it doesn't matter as long as both bundle id in info.plist file and the one you've submitted in iTunes Connect match.

In Bundle ID Suffix you should write full name of bundle ID.

Example:

Bundle ID suffix = thebestapp (NOT CORRECT!!!!)

Bundle ID suffix = com.awesomeapps.thebestapp (CORRECT!!)

The reason for this is explained in the Developer Portal:

The App ID string contains two parts separated by a period (.) — an App ID Prefix (your Team ID by default, e.g. ABCDE12345), and an App ID Suffix (a Bundle ID search string, e.g. com.mycompany.appname). [emphasis added]

So in this case the suffix is the full string com.awesomeapps.thebestapp.

You could do a simple calculation, pimped with an regex, if the chosen date format is 'YYYYMM':

echo $(($(date +"%Y%m") - 1)) | sed -e 's/99$/12/'

In January of 2020 it will return 201912 ;-) But, it's only a workaround, when date does not have calculation options and other dateinterpreter options (e.g. using perl) not available ;-)

Thanks for the input guys, I was able to find the fix, I added and defined the json on top of the app.component.ts file:

var json = require('./[yourFileNameHere].json');

This ultimately produced the markers and is a simple line of code.

Try this using this single code:

import javax.ws.rs.POST;
import javax.ws.rs.Path;

@Path("/serviceX")
public class MyClassRESTService {

    @POST
    @Path("/doSomething")   
    public void someMethod(String x) {

        System.out.println(x);
                // String x contains the body, you can process
                // it, parse it using JAXB and so on ...

    }
}

The url for try rest services ends .... /serviceX/doSomething

>>> import math
>>> import numpy as np
>>> import scipy
>>> math.pi == np.pi == scipy.pi
True

So it doesn't matter, they are all the same value.

The only reason all three modules provide a pi value is so if you are using just one of the three modules, you can conveniently have access to pi without having to import another module. They're not providing different values for pi.

Yes we can check the length of queue object created from collections.

from collections import deque
class Queue():
    def __init__(self,batchSize=32):
        #self.batchSie = batchSize
        self._queue = deque(maxlen=batchSize)

    def enqueue(self, items):
        ''' Appending the items to the queue'''
        self._queue.append(items)

    def dequeue(self):
        '''remoe the items from the top if the queue becomes full '''
        return self._queue.popleft()

Creating an object of class

q = Queue(batchSize=64)
q.enqueue([1,2])
q.enqueue([2,3])
q.enqueue([1,4])
q.enqueue([1,22])

Now retrieving the length of the queue

#check the len of queue
print(len(q._queue)) 
#you can print the content of the queue
print(q._queue)
#Can check the content of the queue
print(q.dequeue())
#Check the length of retrieved item 
print(len(q.dequeue()))

check the results in attached screen shot

Hope this helps...

Make sure that the selected DB is the one where the table is. I was running the Script on Master. In my case, I had to switch to hr_db.

Rookie mistake but, could help someone.

If you get strange colors switches in the middle of your image using the above C++ function. Be sure to open the outstream in binary mode: imgFile.open(filename, std::ios_base::out | std::ios_base::binary);
Otherwise windows inserts unwanted characters in the middle of your file! (been banging my head on this issue for hours)

See related question here: Why does ofstream insert a 0x0D byte before 0x0A?

I ran into the same problem and found that I have to request the permissions at run time, even if I have declared it in the manifest. Just as stated as Justin Fiedler's answer.

The official documentation about this are here: https://developer.android.com/training/permissions/requesting.html

My implementation is slightly different from Justin Fiedler's answer that it also implement v4 fragment's onRequestPermissionsResult method to handle the permissions request response.

public static final int REQUEST_EXTERNAL_PERMISSION_CODE = 666;

@RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
public static final String[] PERMISSIONS_EXTERNAL_STORAGE = {
        READ_EXTERNAL_STORAGE,
        WRITE_EXTERNAL_STORAGE
};

public boolean checkExternalStoragePermission(Activity activity) {
    if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN) {
        return true;
    }

    int readStoragePermissionState = ContextCompat.checkSelfPermission(activity, READ_EXTERNAL_STORAGE);
    int writeStoragePermissionState = ContextCompat.checkSelfPermission(activity, WRITE_EXTERNAL_STORAGE);
    boolean externalStoragePermissionGranted = readStoragePermissionState == PackageManager.PERMISSION_GRANTED &&
            writeStoragePermissionState == PackageManager.PERMISSION_GRANTED;
    if (!externalStoragePermissionGranted) {
        requestPermissions(PERMISSIONS_EXTERNAL_STORAGE, REQUEST_EXTERNAL_PERMISSION_CODE);
    }

    return externalStoragePermissionGranted;
}

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
        if (requestCode == REQUEST_EXTERNAL_PERMISSION_CODE) {
            if (checkExternalStoragePermission(getActivity())) {
                // Continue with your action after permission request succeed
            }
        }
    }
}

When using Visual Studio Code on Linux/Windows, you can use CTRL + PAGE_UP to switch to the previous tab, and CTRL + PAGE_DN to switch to the next tab. You also have the ability to switch to tabs based on their (non-zero relative) index. You can do so, by pressing and holding ALT , followed by a number (1 through 9).

For more details: check here

Form elements can be accessed via the form's DOM element by name, not by "id" value. Give your form elements names if you want to access them like that, or else access them directly by "id" value:

document.getElementById("color").disabled = true;

edit — oh also, as pointed out by others, it's just "text", not "TextBox", for the "type" attribute.

You might want to invest a little time in reading some front-end development tutorials.

In the spirit of a DVCS (as in "Distributed"), you don't cancel something you have published:
Pull requests are essentially patches you have send (normally by email, here by GitHub webapp), and you wouldn't cancel an email either ;)

But since the GitHub Pull Request system also includes a discussion section, that would be there that you could voice your concern to the recipient of those changes, asking him/her to disregards 29 of your 30 commits.

Finally, remember:

• a/ you have a preview section when making a pull request, allowing you to see the number of commits about to be included in it, and to review their diff.
• b/ it is preferable to rebase the work you want to publish as pull request on top of the remote branch which will receive said work. Then you can make a pull request which could be safely applied in a fast forward manner by the recipient.

That being said, since January 2011 ("Refreshed Pull Request Discussions"), and mentioned in the answer above, you can close a pull request in the comments.
Look for that "Comment and Close" button at the bottom of the discussion page:

maybe useful for somebody, I got next problem on windows 8, apache 2.4, php 7+.

php.ini conf>

extension_dir="C:/Server/PHP7/ext"

php on apache works ok but on cli problem with libs loading, as a result, I changed to

extension_dir="C:/server/PHP7/ext"

You could use

=CELL("width", INDIRECT(ADDRESS(ROW(), COLUMN())))

<?php

session_start();

session_unset();

session_destroy();

header("location:home.php");

exit();

?>

There is also one more option than @: and <text></text>.

Using <script> block itself.

When you need to do large chunks of JavaScript depending on Razor code, you can do it like this:

@if(Utils.FeatureEnabled("Feature")) {
    <script>
        // If this feature is enabled
    </script>
}

<script>
    // Other JavaScript code
</script>

Pros of this manner is that it doesn't mix JavaScript and Razor too much, because mixing them a lot will cause readability issues eventually. Also large text blocks are not very readable either.

I'll share a straight-forward way that worked for me.

[" ".join([str(elem) for elem in tup]) for tup in df.columns.tolist()]
#df = df.reset_index() if needed

This is how I did this on an existing table and column (named id):

UPDATE table SET id=ROWNUM;
DECLARE
  maxval NUMBER;
BEGIN
  SELECT MAX(id) INTO maxval FROM table;
  EXECUTE IMMEDIATE 'DROP SEQUENCE table_seq';
  EXECUTE IMMEDIATE 'CREATE SEQUENCE table_seq START WITH '|| TO_CHAR(TO_NUMBER(maxval)+1) ||' INCREMENT BY 1 NOMAXVALUE';
END;
CREATE TRIGGER table_trigger
  BEFORE INSERT ON table
  FOR EACH ROW
BEGIN
  :new.id := table_seq.NEXTVAL;
END;

Use time module to convert data.

Code snippet:

import time 
tring='20150103040500'
var = int(time.mktime(time.strptime(tring, '%Y%m%d%H%M%S')))
print var

getParentFragmentManager().setFragmentResultListener is the 2020 way of doing this. Your only limitation is to use a bundle to pass the data. Check out the docs for more info and examples.

Some other ways

• Call to getActivity() and cast it to the shared activity between your fragments, then use it as a bridge to pass the data. This solution is highly not recommended because of the cupelling it requires between the activity and the fragments, but it used to be the popular way of doing this back in the KitKat days...
• Use callbacks. Any events mechanism will do. This would be a Java vanilla solution. The benefit over FragmentManager is that it's not limited to Bundles. The downside, however, is that you may run into edge cases bugs where you mess up the activity life cycle and get exceptions like IllegalStateException when the fragment manager is in the middle of saving state or the activity were destroyed. Also, it does not support cross-processing communication.

In Oracle, you could do this:

create table D (
  ID numeric(1),
  CODE varchar(2),
  constraint PK_D primary key (ID, CODE)
);

The combination of <scope>provided</scope> and <exclusions> didn't work for me.

I had to use this:

<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <scope>system</scope>
    <systemPath>${project.basedir}/empty.jar</systemPath>
</dependency>

Where empty.jar is a jar file with literally nothing in it.

Function names should be lowercase, with words separated by underscores as necessary to improve readability. mixedCase is allowed only in contexts where that's already the prevailing style

Check out its already been answered, click here

From angular 6 you can run the command below to fix that issue

npm install --save-dev @angular-devkit/build-angular

OR

yarn add @angular-devkit/build-angular --dev 

If your you still can not resolve issues, you can see other option from an unhandled exception occurred: cannot find module '@angular-devkit/build-angular/package.json'

Here is another twist on it. My .gitignore file seemed to have been modified / corrupted so that a file I was ignoring

e.g.

/Project/Folder/StyleCop.cache

got changed to this (Note now 2 separate lines)

/Project/Folder
StyleCop.cache

so git was ignoring any files I added to the project and below.

Very weird, no idea how the .gitignore file was changed, but took me a while to spot. Once fixed, the hundreds of css and js files I added went in.

Based on Andi Wilkinson's answer (the second one), I improved a little, make sure the center of the image is shown (like the accepted answer did):

HTML:

<div class="crop">
   <img src="img.png">
</div>

CSS:

.crop{
  height: 150px;
  width: 200px;
  overflow: hidden;
}
.crop img{
  width: 100%;
  height: auto;
  position: relative;
  top: 50%;
  -webkit-transform: translateY(-50%); /* Ch <36, Saf 5.1+, iOS < 9.2, An =<4.4.4 */
  -ms-transform: translateY(-50%); /* IE 9 */
  transform: translateY(-50%); /* IE 10, Fx 16+, Op 12.1+ */
}

This is generic code for configuration collection :

public class GenericConfigurationElementCollection<T> :   ConfigurationElementCollection, IEnumerable<T> where T : ConfigurationElement, new()
{
    List<T> _elements = new List<T>();

    protected override ConfigurationElement CreateNewElement()
    {
        T newElement = new T();
        _elements.Add(newElement);
        return newElement;
    }

    protected override object GetElementKey(ConfigurationElement element)
    {
        return _elements.Find(e => e.Equals(element));
    }

    public new IEnumerator<T> GetEnumerator()
    {
        return _elements.GetEnumerator();
    }
}

After you have GenericConfigurationElementCollection, you can simple use it in the config section (this is an example from my Dispatcher):

public class  DispatcherConfigurationSection: ConfigurationSection
{
    [ConfigurationProperty("maxRetry", IsRequired = false, DefaultValue = 5)]
    public int MaxRetry
    {
        get
        {
            return (int)this["maxRetry"];
        }
        set
        {
            this["maxRetry"] = value;
        }
    }

    [ConfigurationProperty("eventsDispatches", IsRequired = true)]
    [ConfigurationCollection(typeof(EventsDispatchConfigurationElement), AddItemName = "add", ClearItemsName = "clear", RemoveItemName = "remove")]
    public GenericConfigurationElementCollection<EventsDispatchConfigurationElement> EventsDispatches
    {
        get { return (GenericConfigurationElementCollection<EventsDispatchConfigurationElement>)this["eventsDispatches"]; }
    }
}

The Config Element is config Here:

public class EventsDispatchConfigurationElement : ConfigurationElement
{
    [ConfigurationProperty("name", IsRequired = true)]
    public string Name
    {
        get
        {
            return (string) this["name"];
        }
        set
        {
            this["name"] = value;
        }
    }
}

The config file would look like this:

<?xml version="1.0" encoding="utf-8" ?>
  <dispatcherConfigurationSection>
    <eventsDispatches>
      <add name="Log" ></add>
      <add name="Notification" ></add>
      <add name="tester" ></add>
    </eventsDispatches>
  </dispatcherConfigurationSection>

Hope it help !

Sometimes it may be better to use chrome.storage API. It's better then localStorage because you can:

• store information from your content script without the need for message passing between content script and extension;
• store your data as JavaScript objects without serializing them to JSON (localStorage only stores strings).

Here's a simple code demonstrating the use of chrome.storage. Content script gets the url of visited page and timestamp and stores it, popup.js gets it from storage area.

content_script.js

(function () {
    var visited = window.location.href;
    var time = +new Date();
    chrome.storage.sync.set({'visitedPages':{pageUrl:visited,time:time}}, function () {
        console.log("Just visited",visited)
    });
})();

popup.js

(function () {
    chrome.storage.onChanged.addListener(function (changes,areaName) {
        console.log("New item in storage",changes.visitedPages.newValue);
    })
})();

"Changes" here is an object that contains old and new value for a given key. "AreaName" argument refers to name of storage area, either 'local', 'sync' or 'managed'.

Remember to declare storage permission in manifest.json.

manifest.json

...
"permissions": [
    "storage"
 ],
...

Paste my contains example here:

//table[contains(@class, "EC_result")]/tbody

I was trying to select a table row, so that it can be easily copied to the clipboard and then pasted in Excel. Below is a small adaptation of your solution.

References:

• Where I took the window.prompt line from (Jarek Milewski):

  The user is presented with the prompt box, where the text to be copied is already selected...

• For selecting a complete table (Tim Down). Very interesting, but I was not able to adapt for a <tr> element.

<!DOCTYPE html>
<html>
<body>

<div>
    <table id="tableId" border=1>
      <tbody>
        <tr><td>Item <b>A1</b></td><td>Item <b>B1</b></td></tr>
        <tr><td>Item <b>A2</b></td><td>Item <b>B2</b></td></tr>
        <tr><td>Item <b>A3</b></td><td>Item <b>B3</b></td></tr>
      </tbody>
    </table>
</div>

<script>
function addRowHandlers() {
    var table = document.getElementById("tableId");
    var rows = table.getElementsByTagName("tr");
    for (i = 0; i < rows.length; i++) {
        var currentRow = table.rows[i];
        var createClickHandler = 
            function(row) 
            {
                return function() { 
                                        var cell = row.getElementsByTagName("td")[0];
                                        var id = cell.innerHTML;

                                        var cell1 = row.getElementsByTagName("td")[1];
                                        var id2 = cell1.innerHTML;
                                        // alert(id + " - " + id2);
                                        window.prompt("Copy to clipboard: Ctrl+C, Enter", "<table><tr><td>" + id + "</td><td>" + id2 + "</td></tr></table>")
                                 };
            };

        currentRow.onclick = createClickHandler(currentRow);
    }
}
window.onload = addRowHandlers();
</script>
</body>
</html> 

[Caveat: Might not be the most efficient way to do it]:

(SELECT <some columns>
FROM mytable
<maybe some joins here>
WHERE <various conditions>
ORDER BY date DESC
LIMIT 1)

UNION ALL

(SELECT <some columns>
FROM mytable
<maybe some joins here>
WHERE <various conditions>
ORDER BY date ASC    
LIMIT 1)

why dont you add a "source" column to each of the queries with a static value like

select 'source 1' as Source, column1, column2...
from table1

UNION ALL

select 'source 2' as Source, column1, column2...
from table2

There's no reason for the {} command not to work. The semi-obvious questions are:

1. You are sure that the product is actually installed! There's something in ARP/Programs&Features.

2. The original install is in fact visible in the current context. It looks as if it might have been a per-user install, and if you are logged in as somebody else now then it won't know about it - you'd need to log in under the same account as the original install.

3. If the \windows\installer directory was damaged the cached file would be missing, and that's used to do the uninstall.

Extending the contains function you linked to:

containsRegex(a, regex){
  for(var i = 0; i < a.length; i++) {
    if(a[i].search(regex) > -1){
      return i;
    }
  }
  return -1;
}

Then you call the function with an array of strings and a regex, in your case to look for height:

containsRegex([ '<param name=\"bgcolor\" value=\"#FFFFFF\" />', 'sdafkdf' ], /height/)

You could additionally also return the index where height was found:

containsRegex(a, regex){
  for(var i = 0; i < a.length; i++) {
    int pos = a[i].search(regex);
    if(pos > -1){
      return [i, pos];
    }
  }
  return null;
}

@Autowired
private RestOperations restTemplate;

You can only autowire interfaces with implementations.

python enumerate function will be satisfied your requirements

result = list(enumerate([1,3,7,12]))
print result

output

[(0, 1), (1, 3), (2, 7),(3,12)]

Take a step back! Firstly, you're assuming the user is using a foreign locale on their device, which is not a sound assumption for justifying taking over the button text of the file picker, and making it say what you want it to.

It is reasonable that you want to control every item of language visible on your page. The content of the File Upload control is not part of the HTML though. There is more content behind this control, for example, in WebKit, it also says "No file chosen" next to the button.

There are very hacky workarounds that attempt this (e.g. like those mentioned in @ChristopheD's answer), but none of them truly succeed:

• To a screen reader, the file control will still say "Browse..." or "Choose File", and a custom file upload will not be announced as a file upload control, but just a button or a text input.
• Many of them fail to display the chosen file, or to show that the user has no longer chosen a file
• Many of them look nothing like the native control, so might look strange on non-standard devices.
• Keyboard support is typically poor.
• An author-created UI component can never be as fully functional as its native equivalent (and the closer you get it to behave to suppose IE10 on Windows 7, the more it will deviate from other Browser and Operating System combinations).
• Modern browsers support drag & drop into the native file upload control.
• Some techniques may trigger heuristics in security software as a potential ‘click-jacking’ attempt to trick the user into uploading file.

Deviating from the native controls is always a risky thing, there is a whole host of different devices your users could be using, and whatever workaround you choose, you will not have tested it in every one of those devices.

However, there is an even bigger reason why all attempts fail from a User Experience perspective: there is even more non-localized content behind this control, the file selection dialog itself. Once the user is subject to traversing their file system or what not to select a file to upload, they will be subjected to the host Operating System locale.

Are you sure you're doing your user any justice by deviating from the native control, just to localize the text, when as soon as they click it, they're just going to get the Operating System locale anyway?

The best you can do for your users is to ensure you have adequate localised guidance surrounding your file input control. (e.g. Form field label, hint text, tooltip text).

Sorry. :-(

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This answer is for those looking for any justification not to localise the file upload control.

You're most likely looking at using a flash/silverlight/activeX control. The <input type="file" /> control doesn't handle that.

If you don't mind the user selecting a file as a means to getting its directory, you may be able to bind to that control's change event then strip the filename portion and save the path somewhere--but that's about as good as it gets.

Keep in mind that webpages are designed to interact with servers. Nothing about providing a local directory to a remote server is "typical" (a server can't access it so why ask for it?); however files are a means to selectively passing information.

This is the best solution I came up with taking hints from @Vinayak's answer. All the other solutions have different drawbacks.

First of all create a function like this.

void addClickEffect(View view)
{
    Drawable drawableNormal = view.getBackground();

    Drawable drawablePressed = view.getBackground().getConstantState().newDrawable();
    drawablePressed.mutate();
    drawablePressed.setColorFilter(Color.argb(50, 0, 0, 0), PorterDuff.Mode.SRC_ATOP);

    StateListDrawable listDrawable = new StateListDrawable();
    listDrawable.addState(new int[] {android.R.attr.state_pressed}, drawablePressed);
    listDrawable.addState(new int[] {}, drawableNormal);
    view.setBackground(listDrawable);
}

Explanation:

getConstantState().newDrawable() is used to clone the existing Drawable otherwise the same drawable will be used. Read more from here: Android: Cloning a drawable in order to make a StateListDrawable with filters

mutate() is used to make the Drawable clone not share its state with other instances of Drawable. Read more about it here: https://developer.android.com/reference/android/graphics/drawable/Drawable.html#mutate()

Usage:

You can pass any type of View (Button, ImageButton, View etc) as the parameter to the function and they will get the click effect applied to them.

addClickEffect(myButton);
addClickEffect(myImageButton);