There is another way of doing it or if you wish to move back to more than just one commit.

Here is a an example to move back to n number of commits:

git branch topic master~n

For the sake of this question, this can also be done:

git branch topic master~1

The command works perfectly on git version 2.7.4. Haven't tested it on any other version.

If you're using .NET 4 or above and you don't want to reference System.Web, you can use WebUtility.HtmlEncode from System

var encoded = WebUtility.HtmlEncode(unencoded);

This has the same effect as HttpUtility.HtmlEncode and should be preferred over System.Security.SecurityElement.Escape.

<div id="contentse "><br>
      <h2>Percentage Calculator</h2>
    <form action="/charactercount" class="align-items-center" style="border: 1px solid #eee;padding:15px;" method="post" enctype="multipart/form-data" name="form">
        <input type="hidden" name="csrfmiddlewaretoken" value="NCBdw9beXfKV07Tc1epTBPqJ0gzfkmHNXKrAauE34n3jn4TGeL8Vv6miOShhqv6O">
        <div style="border: 0px solid white;color:#eee;padding:5px;width:900px">
        <br><div class="input-float" style="float: left;"> what is <input type="text" id="aa" required=""> % of <input type="text" id="ab"> ? </div><div class="output-float"><input type="button" class="crm-submit" value="calculate" onclick="calculatea()"> &nbsp; <input type="text" id="ac" readonly="">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</div><br style="clear: both;"> </div><br>
        <hr><br>
        
        <div style="border: 0px solid white;color:#eee;padding:5px;width:900px">
        <div class="input-float" style="float: left;"><input type="text" id="ba"> is what percent of <input type="text" id="bb"> ? </div><div class="output-float"><input type="button" class="crm-submit" value="calculate" onclick="calculateb()"> &nbsp; <input type="text" id="bc" readonly=""> &nbsp; % </div><br style="clear: both;"></div><br>
        <hr><br>
        
        <div style="border: 0px solid white;color:#eee;padding:5px;width:900px">
        Find percentage change(increase/decrease) <br><br>
        <div class="input-float" style="float: left;">from <input type="text" id="ca"> to <input type="text" id="cb">&nbsp;?  </div><div class="output-float"><input type="button" class="crm-submit" value="calculate" onclick="calculatec()"> &nbsp; <input type="text" id="cc" readonly="">&nbsp;%</div><br style="clear: both;"></div>
    </form>
    </div>

Live example here: setool-percentage-calculator

Use this code:

'{:x}'.format(int(line))

it allows you to specify a number of digits too:

'{:06x}'.format(123)
# '00007b'

For Python 2.6 use

'{0:x}'.format(int(line))

or

'{0:06x}'.format(int(line))

Spend a whole week, after all the following setting worked ! and finally saved. Removing the UrlScan from ISAPI fileters in IIS fixes the problem in our case

Add this to your Dockerfile

RUN cat /run.sh | tr -d '\r' > /run.sh

A good question. Should tell you it took some time to crack this one. Here is my result.

DECLARE @TABLE TABLE
(  
ID INT,  
USERS VARCHAR(10),  
ACTIVITY VARCHAR(10),  
PAGEURL VARCHAR(10)  
)

INSERT INTO @TABLE  
VALUES  (1, 'Me', 'act1', 'ab'),
        (2, 'Me', 'act1', 'cd'),
        (3, 'You', 'act2', 'xy'),
        (4, 'You', 'act2', 'st')


SELECT T1.USERS, T1.ACTIVITY,   
        STUFF(  
        (  
        SELECT ',' + T2.PAGEURL  
        FROM @TABLE T2  
        WHERE T1.USERS = T2.USERS  
        FOR XML PATH ('')  
        ),1,1,'')  
FROM @TABLE T1  
GROUP BY T1.USERS, T1.ACTIVITY

If you just want to get the information of current directory, you can type:

pwd

and you don't need to use the Nautilus, or you can use a teamviewer software to remote connect to the computer, you can get everything you want.

I'm using Object.keys(chars).map(...) to loop in render

// chars = {a:true, b:false, ..., z:false}

render() {
    return (
       <div>
        {chars && Object.keys(chars).map(function(char, idx) {
            return <span key={idx}>{char}</span>;
        }.bind(this))}
        "Some text value"
       </div>
    );
}

Create a new method for Array class in core level file and use it all over your project.

// say in app.js
Array.prototype.occurrence = function(val) {
  return this.filter(e => e === val).length;
}

Use this anywhere in your project -

[1, 2, 4, 5, 2, 7, 2, 9].occurrence(2);
// above line returns 3

You want str replace, because performance-wise it's much cheaper and still fits your needs!

$title = str_replace( array( '\'', '"', ',' , ';', '<', '>' ), ' ', $rawtitle);

(Unless this is all about security and sql injection, in that case, I'd rather to go with a POSITIVE list of ALLOWED characters... even better, stick with tested, proven routines.)

Btw, since the OP talked about title-setting: I wouldn't replace special chars with nothing, but with a space. A superficious space is less of a problem than two words glued together...

In Jersey Rest Services just use the JacksonFeatures annotation ...

@JacksonFeatures(serializationDisable = {SerializationFeature.FAIL_ON_EMPTY_BEANS})
public Response getSomething() {
    Object entity = doSomething();
    return Response.ok(entity).build();
}

if you want to use it inside a 'for' to copy the last generated files for a every-day bacakup...

j=0  
var="`find /backup/path/ -name 'something*' -type f -mtime -1`"  
#we have in $var some files with last day change date

for i in $var  
  do  
  j=$(( $j + 1 ))  
  dirname="`dirname $i`"  
  filename="`basename $i`"  
  /usr/bin/ftp -in >> /tmp/ftp.good 2>> /tmp/ftp.bad << EOF  
    open 123.456.789.012  
    user user_name passwd  
    bin  
    lcd $dirname  
    put $filename  
    quit  
  EOF      #end of ftp  
done       #end of for iteration

Swift 3

Orientation rotation is more complicated if a view controller is embedded in UINavigationController or UITabBarController the navigation or tab bar controller takes precedence and makes the decisions on autorotation and supported orientations.

Use the following extensions on UINavigationController and UITabBarController so that view controllers that are embedded in one of these controllers get to make the decisions:

UINavigationController extension

extension UINavigationController {

override open var shouldAutorotate: Bool {
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.shouldAutorotate
        }
        return super.shouldAutorotate
    }
}

override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.preferredInterfaceOrientationForPresentation
        }
        return super.preferredInterfaceOrientationForPresentation
    }
}

override open var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        if let visibleVC = visibleViewController {
            return visibleVC.supportedInterfaceOrientations
        }
        return super.supportedInterfaceOrientations
    }
 }}

UITabBarController extension

extension UITabBarController {

override open var shouldAutorotate: Bool {
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.shouldAutorotate
        }
        return super.shouldAutorotate
    }
}

override open var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.preferredInterfaceOrientationForPresentation
        }
        return super.preferredInterfaceOrientationForPresentation
    }
}

override open var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        if let selectedVC = selectedViewController{
            return selectedVC.supportedInterfaceOrientations
        }
        return super.supportedInterfaceOrientations
    }
}}

Now you can override the supportedInterfaceOrientations, shouldAutoRotate and preferredInterfaceOrientationForPresentation in the view controller you want to lock down otherwise you can leave out the overrides in other view controllers that you want to inherit the default orientation behavior specified in your app's plist.

Lock to Specific Orientation

class YourViewController: UIViewController {
open override var supportedInterfaceOrientations: UIInterfaceOrientationMask{
    get {
        return .portrait
    }
}}

Disable Rotation

    class YourViewController: UIViewController {
open override var shouldAutorotate: Bool {
    get {
        return false
    }
}}

Change Preferred Interface Orientation For Presentation

class YourViewController: UIViewController {
open override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
    get {
        return .portrait
    }
}}

You say "I am not using a forms to manipulate the data." But you are doing a POST. Therefore, you are, in fact, using a form, even if it's empty.

$.ajax's dataType tells jQuery what type the server will return, not what you are passing. POST can only pass a form. jQuery will convert data to key/value pairs and pass it as a query string. From the docs:

Data to be sent to the server. It is converted to a query string, if not already a string. It's appended to the url for GET-requests. See processData option to prevent this automatic processing. Object must be Key/Value pairs. If value is an Array, jQuery serializes multiple values with same key i.e. {foo:["bar1", "bar2"]} becomes '&foo=bar1&foo=bar2'.

Therefore:

1. You aren't passing JSON to the server. You're passing JSON to jQuery.
2. Model binding happens in the same way it happens in any other case.

No one has posted an optimal answer for time and space complexity, so I thought I would give it a shot. Here is a solution that removes all occurrences of a specific value without creating a new array and at an efficient time complexity. The drawback is that the elements do not maintain order.

Time complexity: O(n)
Additional space complexity: O(1)

def main():
    test_case([1, 2, 3, 4, 2, 2, 3], 2)     # [1, 3, 3, 4]
    test_case([3, 3, 3], 3)                 # []
    test_case([1, 1, 1], 3)                 # [1, 1, 1]


def test_case(test_val, remove_val):
    remove_element_in_place(test_val, remove_val)
    print(test_val)


def remove_element_in_place(my_list, remove_value):
    length_my_list = len(my_list)
    swap_idx = length_my_list - 1

    for idx in range(length_my_list - 1, -1, -1):
        if my_list[idx] == remove_value:
            my_list[idx], my_list[swap_idx] = my_list[swap_idx], my_list[idx]
            swap_idx -= 1

    for pop_idx in range(length_my_list - swap_idx - 1):
        my_list.pop() # O(1) operation


if __name__ == '__main__':
    main()

Using Eddy's answer worked very well as I had kind of the same problem. Just call your url with the parameters : "www.mypage.html#myAnchor"

Then, in mypage.html :

$(document).ready(function(){
  var hash = window.location.hash;
  if(hash.length > 0){
    // your action with the hash
  }
});

Edit: This is out of date, see @Merlin's answer.

[False], being a nonempty list, is not the same as False. You should write:

test = df.sort('one', ascending=False)

Arrays have a property .length that returns the number of elements.

var st =
    {
        "itema":{},
        "itemb":
        [
            {"id":"s01","cd":"c01","dd":"d01"},
            {"id":"s02","cd":"c02","dd":"d02"}
        ]
    };

st.itemb.length // 2

1 for month is February. The 30th of February is changed to 1st of March. You should set 0 for month. The best is to use the constant defined in Calendar:

c1.set(2000, Calendar.JANUARY, 30);

After all files have been added, the next step is a "git commit".

"git status" will suggest what to do: files yet to add are listed at the bottom, and once they are all done, it will suggest a commit at the top, where it explains the merge status of the current branch.

I was facing this issue and fixed by putting a check in form attribute. This issue can happen when the FormGroup is not initialized.

<form [formGroup]="loginForm" *ngIf="loginForm">
OR
<form [formGroup]="loginForm" *ngIf="this.loginForm">

This will not render the form until it is initialized.

Here the strsplit solution for a dataframe using dplyr package

col1 = c("TGAS_1121", "MGAS_1432", "ATGAS_1121") 
col2 = c("T", "M", "A") 
df = data.frame(col1, col2)
df
        col1 col2
1  TGAS_1121    T
2  MGAS_1432    M
3 ATGAS_1121    A

df<-mutate(df,col1=as.character(col1))
df2<-mutate(df,col1=sapply(strsplit(df$col1, split='_', fixed=TRUE),function(x) (x[2])))
df2

  col1 col2
1 1121    T
2 1432    M
3 1121    A

I would definitely go with AdeptSQL if you're using MSSQL. It's the least good looking but the most talented db compare tool amongst the ones I've tried. It can compare both the structure and the data. It tells you which tables exist on one db but does not exist on the other, compares the structure and data of the common ones and it can produce the script to synchronize the two. It's not free but has a 30 day trial (as far as I can remember)

Are you removing or splitting? This will remove all the non-numeric characters.

myStr = myStr.replaceAll( "[^\\d]", "" )

Whenever you access an Object (not being a String) in a String context then the toString() is called under the covers by the compiler.

This is why

Map map = new HashMap();
System.out.println("map=" + map);

works, and by overriding the standard toString() from Object in your own classes, you can make your objects useful in String contexts too.

(and consider it a black box! Never, ever use the contents for anything else than presenting to a human)

On CentOS with cPanel sudo /etc/init.d/crond reload does the trick.

On CentOS7: sudo systemctl start crond.service

try this

public static string cleanPhone(string inVal)
        {
            char[] newPhon = new char[inVal.Length];
            int i = 0;
            foreach (char c in inVal)
                if (c.CompareTo('0') > 0 && c.CompareTo('9') < 0)
                    newPhon[i++] = c;
            return newPhon.ToString();
        }

Sometimes when we do these steps:

 alter table my_table drop constraint my_pk; 
 alter table my_table add constraint my_pk primary key (city_id, buildtime, time);

The last statement fails with

ORA-00955 "name is already used by an existing object"

Oracle usually creates an unique index with the same name my_pk. In such a case you can drop the unique index or rename it based on whether the constraint is still relevant.

You can combine the dropping of primary key constraint and unique index into a single sql statement:

alter table my_table drop constraint my_pk drop index; 

check this: ORA-00955 "name is already used by an existing object"

JodaTime

To convert JodaTime's org.joda.time.LocalDate to java.sql.Timestamp, just do

Timestamp timestamp = new Timestamp(localDate.toDateTimeAtStartOfDay().getMillis());

To convert JodaTime's org.joda.time.LocalDateTime to java.sql.Timestamp, just do

Timestamp timestamp = new Timestamp(localDateTime.toDateTime().getMillis());

JavaTime

To convert Java8's java.time.LocalDate to java.sql.Timestamp, just do

Timestamp timestamp = Timestamp.valueOf(localDate.atStartOfDay());

To convert Java8's java.time.LocalDateTime to java.sql.Timestamp, just do

Timestamp timestamp = Timestamp.valueOf(localDateTime);

Or do the following:

...

  Integer[] integerArray = new Integer[integerList.size()];
  integerList.toArray(integerArray);

  return integerArray;

}

This is an option:

dbContext.Entry(entity).State = EntityState.Detached;

Your program has no knowledge of where your VS project is, so see get path for my .exe and go ../.. to get your project's path.

Well this might appear weird but after installing pycrypto or pycryptodome , we need to update the directory name crypto to Crypto in lib/site-packages

Reference

With Java 8 Streams:

Sometimes brute force casting is fine:

List<MyClass> mythings = (List<MyClass>) (Object) objects

But here's a more versatile solution:

List<Object> objects = Arrays.asList("String1", "String2");

List<String> strings = objects.stream()
                       .map(element->(String) element)
                       .collect(Collectors.toList());

There's a ton of benefits, but one is that you can cast your list more elegantly if you can't be sure what it contains:

objects.stream()
    .filter(element->element instanceof String)
    .map(element->(String)element)
    .collect(Collectors.toList());

I had the same issue too, to solve this, check in References of your project if the version of Newtonsoft.Json was updated (probablly don´t), then remove it and check in your either Web.config or App.config wheter the element dependentAssembly was updated as follows:

<dependentAssembly>
  <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
  <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
</dependentAssembly>

After that, rebuild the project again (the dll will be replaced with the correct version)

To clear the Output screen, you can simulate a real person pressing CTRL + L (which clears the output). You can achieve this by using the Robot() class, here is how you can do this:

try {
        Robot robbie = new Robot();
        robbie.keyPress(17); // Holds CTRL key.
        robbie.keyPress(76); // Holds L key.
        robbie.keyRelease(17); // Releases CTRL key.
        robbie.keyRelease(76); // Releases L key.
    } catch (AWTException ex) {
        Logger.getLogger(LoginPage.class.getName()).log(Level.SEVERE, null, ex);
}

Let's assume that you have a List<String> strings that you want the first item from.

There are several ways to do that:

Java (pre-8):

String firstElement = null;
if (!strings.isEmpty() && strings.size() > 0) {
    firstElement = strings.get(0);
}

Java 8:

Optional<String> firstElement = strings.stream().findFirst();

Guava

String firstElement = Iterables.getFirst(strings, null);

Apache commons (4+)

String firstElement = (String) IteratorUtils.get(strings, 0);

Apache commons (before 4)

String firstElement = (String) CollectionUtils.get(strings, 0);

Followed by or encapsulated within the appropriate checks or try-catch blocks.

Kotlin:

In Kotlin both Arrays and most of the Collections (eg: List) have a first method call. So your code would look something like this

for a List:

val stringsList: List<String?> = listOf("a", "b", null)
val first: String? = stringsList.first()

for an Array:

val stringArray: Array<String?> = arrayOf("a", "b", null)
val first: String? = stringArray.first()

Followed by or encapsulated within the appropriate checks or try-catch blocks.

Kotlin also includes safer ways to do that for kotlin.collections, for example firstOrNull or getOrElse, or getOrDefault when using JRE8

I had the same error, but while I was connected and other previous statements in a script ran fine before! (So the connection was already open and some successful statements ran fine in auto-commit mode) The error was reproducable for some minutes. Then it had just disappeared. I don't know if somebody or some internal mechanism did some maintenance work or similar within this time - maybe.

Some more facts of my env:

• 11.2
• connected as: sys as sysdba
• operations involved ... reading from all_tables, all_views and granting select on them for another user

Say I want to import data into a component from src/mylib.js:

var test = {
  foo () { console.log('foo') },
  bar () { console.log('bar') },
  baz () { console.log('baz') }
}

export default test

In my .Vue file I simply imported test from src/mylib.js:

<script> 
  import test from '@/mylib'

  console.log(test.foo())
  ...
</script>

bellow are cause above “org.xml.sax.SAXParseException: Content is not allowed in prolog” exception.

1. First check the file path of schema.xsd and file.xml.
2. The encoding in your XML and XSD (or DTD) should be same.
   XML file header: <?xml version='1.0' encoding='utf-8'?>
   XSD file header: <?xml version='1.0' encoding='utf-8'?>
3. if anything comes before the XML document type declaration.i.e: hello<?xml version='1.0' encoding='utf-16'?>

Not a simple way, no.

Let's say that by "active" you mean "hasn't passed the maximum lifetime" and hasn't been explicitly destroyed and that you're using the default session handler.

• First, the maximum lifetime is defined as a php.ini config and is defined in terms of the last activity on the session. So the "expiry" mechanism would have to read the content of the sessions to determine the application-defined expiry.
• Second, you'd have to manually read the sessions directory and read the files, whose format I don't even know they're in.

If you really need this, you must implement some sort of custom session handler. See session_set_save_handler.

Take also in consideration that you'll have no feedback if the user just closes the browser or moves away from your site without explciitly logging out. Depending on much inactivity you consider the threshold to deem a session "inactive", the number of false positives you'll get may be very high.

Someone asked about adding attributes (specifically, 'rows' and 'cols'). If you're using Razor, you could just do this:

@Html.TextAreaFor(model => model.Text, new { cols = 35, @rows = 3 })

That works for me. The '@' is used to escape keywords so they are treated as variables/properties.

Adding an answer that exclusively uses the pandas library to read in a .csv file and save as a .xlsx file. This example makes use of pandas.read_csv (Link to docs) and pandas.dataframe.to_excel (Link to docs).

The fully reproducible example uses numpy to generate random numbers only, and this can be removed if you would like to use your own .csv file.

import pandas as pd
import numpy as np

# Creating a dataframe and saving as test.csv in current directory
df = pd.DataFrame(np.random.randn(100000, 3), columns=list('ABC'))
df.to_csv('test.csv', index = False)

# Reading in test.csv and saving as test.xlsx

df_new = pd.read_csv('test.csv')
writer = pd.ExcelWriter('test.xlsx')
df_new.to_excel(writer, index = False)
writer.save()

Security is a major concern. Ideally your database server should be sitting behind a firewall with only the ports required to perform data access opened. Your web application should be connecting to the database server with a SQL account that has just enough rights for the application to function and no more. For example you should remove rights that permit dropping of objects and most certainly you shouldn't be connecting using accounts such as 'sa'.

In the event that you lose the web server to a hijack (i.e. a full blown privilege escalation to administrator rights), the worst case scenario is that your application's database may be compromised but not the whole database server (as would be the case if the database server and web server were the same machine). If you've encrypted your database connection strings and the hacker isn't savvy enough to decrypt them then all you've lost is the web server.

Convert your document to utf8. LaTeX just reads your text as it is. If you want to use the utf8 input encoding, your document has to be encoded in utf8. This can usually be set by the editor. There is also the program iconv that is useful for converting files from iso encodings to utf.

In the end, you'll have to use an editor that is capable of supporting utf. (I have no idea about the status of utf support on windows, but any reasonable editor on linux should be fine).

In Adapter:

public void setFilter(List<Channel> newList){
        mChannels = new ArrayList<>();
        mChannels.addAll(newList);
        notifyDataSetChanged();
    }

In Activity:

searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return false;
            }

            @Override
            public boolean onQueryTextChange(String newText) {
                newText = newText.toLowerCase();
                ArrayList<Channel> newList = new ArrayList<>();
                for (Channel channel: channels){
                    String channelName = channel.getmChannelName().toLowerCase();
                    if (channelName.contains(newText)){
                        newList.add(channel);
                    }
                }
                mAdapter.setFilter(newList);
                return true;
            }
        });

String actual = list.stream().reduce((t, u) -> t + "," + u).get();

Basically onSaveInstanceState(Bundle outBundle) will give you a bundle. When you look at the Bundle class, you will see that you can put lots of different stuff inside it. At the next call of onCreate(), you just get that Bundle back as an argument. Then you can read your values again and restore your activity.

Lets say you have an activity with an EditText. The user wrote some text inside it. After that the system calls your onSaveInstanceState(). You read the text from the EditText and write it into the Bundle via Bundle.putString("edit_text_value", theValue).

Now onCreate is called. You check if the supplied bundle is not null. If thats the case, you can restore your value via Bundle.getString("edit_text_value") and put it back into your EditText.

function gitcheckoutall() {
    git diff --name-only --diff-filter=U | sed 's/^/"/;s/$/"/' | xargs git checkout --$1
}

I've added this function in .zshrc file.

Use them this way: gitcheckoutall theirs or gitcheckoutall ours

This should do it:

#!/usr/local/cpython-2.7/bin/python  # offer users choice for how large of a song list they want to create # in order to determine (roughly) how many songs to copy print "\nHow much space should the random song list occupy?\n" print "1. 100Mb" print "2. 250Mb\n"  tSizeAns = int(raw_input())  if tSizeAns == 1:     tSize = "100Mb" elif tSizeAns == 2:     tSize = "250Mb" else:     tSize = "100Mb"    # in case user fails to enter either a 1 or 2  print "\nYou  want to create a random song list that is {}.".format(tSize) 

BTW, in case you're open to moving to Python 3.x, the differences are slight:

#!/usr/local/cpython-3.3/bin/python  # offer users choice for how large of a song list they want to create # in order to determine (roughly) how many songs to copy print("\nHow much space should the random song list occupy?\n") print("1. 100Mb") print("2. 250Mb\n")  tSizeAns = int(input())  if tSizeAns == 1:     tSize = "100Mb" elif tSizeAns == 2:     tSize = "250Mb" else:     tSize = "100Mb"    # in case user fails to enter either a 1 or 2  print("\nYou want to create a random song list that is {}.".format(tSize)) 

HTH

A stateful server keeps state between connections. A stateless server does not.

So, when you send a request to a stateful server, it may create some kind of connection object that tracks what information you request. When you send another request, that request operates on the state from the previous request. So you can send a request to "open" something. And then you can send a request to "close" it later. In-between the two requests, that thing is "open" on the server.

When you send a request to a stateless server, it does not create any objects that track information regarding your requests. If you "open" something on the server, the server retains no information at all that you have something open. A "close" operation would make no sense, since there would be nothing to close.

HTTP and NFS are stateless protocols. Each request stands on its own.

Sometimes cookies are used to add some state to a stateless protocol. In HTTP (web pages), the server sends you a cookie and then the browser holds the state, only to send it back to the server on a subsequent request.

SMB is a stateful protocol. A client can open a file on the server, and the server may deny other clients access to that file until the client closes it.

use ack its simple. just type ack <string to be searched>

I needed to generate mongodb ids on client side.

After digging into the mongodb source code i found they generate ObjectIDs using npm bson lib.

If ever you need only to generate an ObjectID without installing the whole mongodb / mongoose package, you can import the lighter bson library :

const bson = require('bson');
new bson.ObjectId(); // 5cabe64dcf0d4447fa60f5e2

Note: There is also an npm project named bson-objectid being even lighter

You just need to iterate the anchors in the two links.

<a href="#hide2" class="hide" id="hide2">+</a>
<a href="#show2" class="show" id="show2">-</a>

See this jsfiddle http://jsfiddle.net/eJX8z/

I also added some margin to the FAQ call to improve the format.

The structs testing.T and testing.B both have a .Log and .Logf method that sound to be what you are looking for. .Log and .Logf are similar to fmt.Print and fmt.Printf respectively.

See more details here: http://golang.org/pkg/testing/#pkg-index

fmt.X print statements do work inside tests, but you will find their output is probably not on screen where you expect to find it and, hence, why you should use the logging methods in testing.

If, as in your case, you want to see the logs for tests that are not failing, you have to provide go test the -v flag (v for verbosity). More details on testing flags can be found here: https://golang.org/cmd/go/#hdr-Testing_flags

Yes, DELETE is slower, TRUNCATE is faster. Why?

DELETE must read the records, check constraints, update the block, update indexes, and generate redo/undo. All of that takes time.

TRUNCATE simply adjusts a pointer in the database for the table (the High Water Mark) and poof! the data is gone.

This is Oracle specific, AFAIK.

The shell built-in compgen can help here. It can take a list with the -W flag and return any of the potential matches it finds.

# My list can contain spaces so I want to set the internal
# file separator to newline to preserve the original strings.
IFS=$'\n'

# Create a list of acceptable strings.
accept=( 'foo' 'bar' 'foo bar' )

# The string we will check
word='foo'

# compgen will return a list of possible matches of the 
# variable 'word' with the best match being first.
compgen -W "${accept[*]}" "$word"

# Returns:
# foo
# foo bar

We can write a function to test if a string equals the best match of acceptable strings. This allows you to return a 0 or 1 for a pass or fail respectively.

function validate {
  local IFS=$'\n'
  local accept=( 'foo' 'bar' 'foo bar' )
  if [ "$1" == "$(compgen -W "${accept[*]}" "$1" | head -1)" ] ; then
    return 0
  else
    return 1
  fi
}

Now you can write very clean tests to validate if a string is acceptable.

validate "blah" || echo unacceptable

if validate "foo" ; then
  echo acceptable
else 
  echo unacceptable
fi

uh? imo this is much simpler

  set /p texte=< file.txt  
  echo %texte%

The reason to make an App with no activity or service could be making a Homescreen Widget app that doesn't need to be started.
Once you start a project don't create any activities. After you created the project just hit run. Android studio will say No default activity found.

Click Edit Configuration (From the Run menu) and in the Launch option part set the Launch value to Nothing. Then click ok and run the App.

(Since there is no launcher activity, No app will be show in the Apps menu.).

String objects in Java use the UTF-16 encoding that can't be modified.

The only thing that can have a different encoding is a byte[]. So if you need UTF-8 data, then you need a byte[]. If you have a String that contains unexpected data, then the problem is at some earlier place that incorrectly converted some binary data to a String (i.e. it was using the wrong encoding).

If you only have one reference to a string and you concatenate another string to the end, CPython now special cases this and tries to extend the string in place.

The end result is that the operation is amortized O(n).

e.g.

s = ""
for i in range(n):
    s+=str(i)

used to be O(n^2), but now it is O(n).

From the source (bytesobject.c):

void
PyBytes_ConcatAndDel(register PyObject **pv, register PyObject *w)
{
    PyBytes_Concat(pv, w);
    Py_XDECREF(w);
}


/* The following function breaks the notion that strings are immutable:
   it changes the size of a string.  We get away with this only if there
   is only one module referencing the object.  You can also think of it
   as creating a new string object and destroying the old one, only
   more efficiently.  In any case, don't use this if the string may
   already be known to some other part of the code...
   Note that if there's not enough memory to resize the string, the original
   string object at *pv is deallocated, *pv is set to NULL, an "out of
   memory" exception is set, and -1 is returned.  Else (on success) 0 is
   returned, and the value in *pv may or may not be the same as on input.
   As always, an extra byte is allocated for a trailing \0 byte (newsize
   does *not* include that), and a trailing \0 byte is stored.
*/

int
_PyBytes_Resize(PyObject **pv, Py_ssize_t newsize)
{
    register PyObject *v;
    register PyBytesObject *sv;
    v = *pv;
    if (!PyBytes_Check(v) || Py_REFCNT(v) != 1 || newsize < 0) {
        *pv = 0;
        Py_DECREF(v);
        PyErr_BadInternalCall();
        return -1;
    }
    /* XXX UNREF/NEWREF interface should be more symmetrical */
    _Py_DEC_REFTOTAL;
    _Py_ForgetReference(v);
    *pv = (PyObject *)
        PyObject_REALLOC((char *)v, PyBytesObject_SIZE + newsize);
    if (*pv == NULL) {
        PyObject_Del(v);
        PyErr_NoMemory();
        return -1;
    }
    _Py_NewReference(*pv);
    sv = (PyBytesObject *) *pv;
    Py_SIZE(sv) = newsize;
    sv->ob_sval[newsize] = '\0';
    sv->ob_shash = -1;          /* invalidate cached hash value */
    return 0;
}

It's easy enough to verify empirically.

$ python -m timeit -s"s=''" "for i in xrange(10):s+='a'"
1000000 loops, best of 3: 1.85 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(100):s+='a'"
10000 loops, best of 3: 16.8 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(1000):s+='a'"
10000 loops, best of 3: 158 usec per loop
$ python -m timeit -s"s=''" "for i in xrange(10000):s+='a'"
1000 loops, best of 3: 1.71 msec per loop
$ python -m timeit -s"s=''" "for i in xrange(100000):s+='a'"
10 loops, best of 3: 14.6 msec per loop
$ python -m timeit -s"s=''" "for i in xrange(1000000):s+='a'"
10 loops, best of 3: 173 msec per loop

It's important however to note that this optimisation isn't part of the Python spec. It's only in the cPython implementation as far as I know. The same empirical testing on pypy or jython for example might show the older O(n**2) performance .

$ pypy -m timeit -s"s=''" "for i in xrange(10):s+='a'"
10000 loops, best of 3: 90.8 usec per loop
$ pypy -m timeit -s"s=''" "for i in xrange(100):s+='a'"
1000 loops, best of 3: 896 usec per loop
$ pypy -m timeit -s"s=''" "for i in xrange(1000):s+='a'"
100 loops, best of 3: 9.03 msec per loop
$ pypy -m timeit -s"s=''" "for i in xrange(10000):s+='a'"
10 loops, best of 3: 89.5 msec per loop

So far so good, but then,

$ pypy -m timeit -s"s=''" "for i in xrange(100000):s+='a'"
10 loops, best of 3: 12.8 sec per loop

ouch even worse than quadratic. So pypy is doing something that works well with short strings, but performs poorly for larger strings.

One can specify the port with: php artisan serve --port=8080.

Just for those interested you can avoid writing custom function by passing NULL as last parameter (if you do not intend to do extra processing of returned data).
In this case default internal function is used.

Details
http://curl.haxx.se/libcurl/c/curl_easy_setopt.html#CURLOPTWRITEDATA

Example

#include <stdio.h>
#include <curl/curl.h>

int main(void)
{
    CURL *curl;
    FILE *fp;
    CURLcode res;
    char *url = "http://stackoverflow.com";
    char outfilename[FILENAME_MAX] = "page.html";
    curl = curl_easy_init();                                                                                                                                                                                                                                                           
    if (curl)
    {   
        fp = fopen(outfilename,"wb");
        curl_easy_setopt(curl, CURLOPT_URL, url);
        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, NULL);
        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
        res = curl_easy_perform(curl);
        curl_easy_cleanup(curl);
        fclose(fp);
    }   
    return 0;
}

Have to think about the decimal precision, so you must to limit the bitstring length. Anyway, using BigDecimal is a good choice.

public BigDecimal bitStringToBigDecimal(String bitStr){

    BigDecimal sum = new BigDecimal("0");
    BigDecimal base = new BigDecimal(2);
    BigDecimal temp;
    for(int i=0;i<bitStr.length();i++){
        if(bitStr.charAt(i)== '1'){
            int exponent= bitStr.length()-1-i;
            temp=base.pow(exponent);
            sum=sum.add(temp);
        }

    }
    return sum;
}

Hi in my case solutions here won't work My code:

index.js

import App from './App';

let store = createStore(App);

render(
    <Provider store={store}>
        <Router history={browserHistory}>
            <Route path="/" name='Strona glówna' component={App}>
                <IndexRoute name='' component={Welcome}/>
                <Route name='Dashboard' path="dashboard" component={ReatEstateList}/>

Error apeares in App.js after import

Uncaught TypeError: Cannot call a class as a function

You can start Eclipse in clean mode from the command line:

eclipse -clean

If you have xclip an easy way of copying text to the clipboard is as follows:

1. Yank text you want to copy. (y command in vanilla vim)
2. Type in :call system("xclip -selection clipboard", @")

:call system() runs a terminal command. It takes two arguments, the first the command, the second what to pipe to that command. For example :echom system("head -1", "Hello\nWorld") returns Hello (With some padding). echom returns the output of a command, call doesn't.

xclip -selection clipboard just copies text into the system clipboard as opposed to the default X clipboard, (Accessed by the middle moue button).

@" returns the last yanked text. " is the default register, but you could use any register. To see the contents of all registers, type :registers.

                //smalest number in the array//
    double small = x[0];
    for(t=0;t<x[t];t++)
    {
         if(x[t]<small)
             {
                small=x[t];
            }
    }
    printf("\nThe smallest number is  %0.2lf  \n",small);

I personally like new lines at the end of source code files.

It may have its origin with Linux or all UNIX systems for that matter. I remember there compilation errors (gcc if I'm not mistaken) because source code files did not end with an empty new line. Why was it made this way one is left to wonder.

On any other element, I would use the scrollHeight of the DOM object and set the height accordingly. I don't know if this would work on an iframe (because they're a bit kooky about everything) but it's certainly worth a try.

Edit: Having had a look around, the popular consensus is setting the height from within the iframe using the offsetHeight:

function setHeight() {
    parent.document.getElementById('the-iframe-id').style.height = document['body'].offsetHeight + 'px';
}

And attach that to run with the iframe-body's onLoad event.

Instead of

css=#container

use

css=div.container:nth-of-type(1),css=div.container:nth-of-type(2)

Try to do this...

{
    this.Hide();
    Form1 sistema = new Form1();
    sistema.ShowDialog();
    this.Close();
}

On top of all the previous answers, dont forget to hide your alert before using it with a simple style="display:none;"

<div class="alert alert-success" id="passwordsNoMatchRegister" role="alert" style="display:none;" >Message of the Alert</div>

Then use either:

$('#passwordsNoMatchRegister').show();

$('#passwordsNoMatchRegister').fadeIn();

$('#passwordsNoMatchRegister').slideDown();

1. del /s /q c:\where ever the file is\*
2. rmdir /s /q c:\where ever the file is\
3. mkdir c:\where ever the file is\

If you want a module to simply never be cached (sometimes useful for development, but remember to remove it when done!) you can just put delete require.cache[module.id]; inside the module.

There are a couple of ways:

If you want to use raw Javascript (without a helper like JQuery), then you could do something like:

var link = "http://google.com";
var element = document.createElement("a");
element.setAttribute("href", link);
element.innerHTML = "your text";

// and append it to where you'd like it to go:
document.body.appendChild(element);

The other method is to write the link directly into the document:

document.write("<a href='" + link + "'>" + text + "</a>");

Since you already have all the files in a folder, say "Project", you simply have to open Netbeans and go to File -> Open Project (or Ctrl + Shift+ O on Windows) and then from the dialog box navigate to the folder containing the Folder "Project".

You will see in the dialog box of Netbeans a 'Java cup'. Well, that's your project.

Second Question

Will my existing implementations continue to work? If not, is there an easy to implement alternative.

The answer is yes, but not without a little work.

$.browser is an official plugin which was included in older versions of jQuery, so like any plugin you can simple copy it and incorporate it into your project or you can simply add it to the end of any jQuery release.

I have extracted the code for you incase you wish to use it.

// Limit scope pollution from any deprecated API
(function() {

    var matched, browser;

// Use of jQuery.browser is frowned upon.
// More details: http://api.jquery.com/jQuery.browser
// jQuery.uaMatch maintained for back-compat
    jQuery.uaMatch = function( ua ) {
        ua = ua.toLowerCase();

        var match = /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
            /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
            /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
            /(msie) ([\w.]+)/.exec( ua ) ||
            ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
            [];

        return {
            browser: match[ 1 ] || "",
            version: match[ 2 ] || "0"
        };
    };

    matched = jQuery.uaMatch( navigator.userAgent );
    browser = {};

    if ( matched.browser ) {
        browser[ matched.browser ] = true;
        browser.version = matched.version;
    }

// Chrome is Webkit, but Webkit is also Safari.
    if ( browser.chrome ) {
        browser.webkit = true;
    } else if ( browser.webkit ) {
        browser.safari = true;
    }

    jQuery.browser = browser;

    jQuery.sub = function() {
        function jQuerySub( selector, context ) {
            return new jQuerySub.fn.init( selector, context );
        }
        jQuery.extend( true, jQuerySub, this );
        jQuerySub.superclass = this;
        jQuerySub.fn = jQuerySub.prototype = this();
        jQuerySub.fn.constructor = jQuerySub;
        jQuerySub.sub = this.sub;
        jQuerySub.fn.init = function init( selector, context ) {
            if ( context && context instanceof jQuery && !(context instanceof jQuerySub) ) {
                context = jQuerySub( context );
            }

            return jQuery.fn.init.call( this, selector, context, rootjQuerySub );
        };
        jQuerySub.fn.init.prototype = jQuerySub.fn;
        var rootjQuerySub = jQuerySub(document);
        return jQuerySub;
    };

})();

If you're asking why anyone would need a depreciated plugin, I have prepared the following answer.

First and foremost the answer is compatibility. Since jQuery is plugin based, some developers opted to use $.browser and with the latest releases of jQuery which doesn't include $.browser all those plugins where rendered useless.

jQuery did release a migration plugin, which was created for developers to detect whether their plugin's used any depreciated dependencies such as $.browser.

Although this helped developers patch their plugin's. jQuery dropped $.browser completely so the above fix is probably the only solution until your developers patch or incorporate the above.

About: jQuery.browser

I encountered this error when the JDK that I compiled the app under was different from the tomcat JVM. I verified that the Tomcat manager was running jvm 1.6.0 but the app was compiled under java 1.7.0.

After upgrading Java and changing JAVA_HOME in our startup script (/etc/init.d/tomcat) the error went away.

<android.support.v4.widget.NestedScrollView
    android:layout_width="match_parent"
    android:layout_height="100dp">
<EditText
    android:id="@+id/question_input"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:ems="10"
    android:inputType="text|textMultiLine"
    android:lineSpacingExtra="5sp"
    android:padding="5dp"
    android:textAlignment="textEnd"
    android:typeface="normal" />

</android.support.v4.widget.NestedScrollView>

Your problem is not that the div is not at 100% height, but that the container around it is not.This will help in the browser I suspect you are using:

html,body { height:100%; }

You may need to adjust padding and margins as well, but this will get you 90% of the way there.If you need to make it work with all browsers you will have to mess around with it a bit.

This site has some excellent examples:

http://www.brunildo.org/test/html_body_0.html
http://www.brunildo.org/test/html_body_11b.html
http://www.brunildo.org/test/index.html

I also recommend going to http://quirksmode.org/

As skaffman suggested, JSP 2.0 Tag Files are the bee's knees.

Let's take your simple example.

Put the following in WEB-INF/tags/wrapper.tag

<%@tag description="Simple Wrapper Tag" pageEncoding="UTF-8"%>
<html><body>
  <jsp:doBody/>
</body></html>

Now in your example.jsp page:

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>

<t:wrapper>
    <h1>Welcome</h1>
</t:wrapper>

That does exactly what you think it does.

So, lets expand upon that to something a bit more general. WEB-INF/tags/genericpage.tag

<%@tag description="Overall Page template" pageEncoding="UTF-8"%>
<%@attribute name="header" fragment="true" %>
<%@attribute name="footer" fragment="true" %>
<html>
  <body>
    <div id="pageheader">
      <jsp:invoke fragment="header"/>
    </div>
    <div id="body">
      <jsp:doBody/>
    </div>
    <div id="pagefooter">
      <jsp:invoke fragment="footer"/>
    </div>
  </body>
</html>

To use this:

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>

<t:genericpage>
    <jsp:attribute name="header">
      <h1>Welcome</h1>
    </jsp:attribute>
    <jsp:attribute name="footer">
      <p id="copyright">Copyright 1927, Future Bits When There Be Bits Inc.</p>
    </jsp:attribute>
    <jsp:body>
        <p>Hi I'm the heart of the message</p>
    </jsp:body>
</t:genericpage>

What does that buy you? A lot really, but it gets even better...

WEB-INF/tags/userpage.tag

<%@tag description="User Page template" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>
<%@attribute name="userName" required="true"%>

<t:genericpage>
    <jsp:attribute name="header">
      <h1>Welcome ${userName}</h1>
    </jsp:attribute>
    <jsp:attribute name="footer">
      <p id="copyright">Copyright 1927, Future Bits When There Be Bits Inc.</p>
    </jsp:attribute>
    <jsp:body>
        <jsp:doBody/>
    </jsp:body>
</t:genericpage>

To use this: (assume we have a user variable in the request)

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>

<t:userpage userName="${user.fullName}">
  <p>
    First Name: ${user.firstName} <br/>
    Last Name: ${user.lastName} <br/>
    Phone: ${user.phone}<br/>
  </p>
</t:userpage>

But it turns you like to use that user detail block in other places. So, we'll refactor it. WEB-INF/tags/userdetail.tag

<%@tag description="User Page template" pageEncoding="UTF-8"%>
<%@tag import="com.example.User" %>
<%@attribute name="user" required="true" type="com.example.User"%>

First Name: ${user.firstName} <br/>
Last Name: ${user.lastName} <br/>
Phone: ${user.phone}<br/>

Now the previous example becomes:

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@taglib prefix="t" tagdir="/WEB-INF/tags" %>

<t:userpage userName="${user.fullName}">
  <p>
    <t:userdetail user="${user}"/>
  </p>
</t:userpage>

The beauty of JSP Tag files is that it lets you basically tag generic markup and then refactor it to your heart's content.

JSP Tag Files have pretty much usurped things like Tiles etc., at least for me. I find them much easier to use as the only structure is what you give it, nothing preconceived. Plus you can use JSP tag files for other things (like the user detail fragment above).

Here's an example that is similar to DisplayTag that I've done, but this is all done with Tag Files (and the Stripes framework, that's the s: tags..). This results in a table of rows, alternating colors, page navigation, etc:

<t:table items="${actionBean.customerList}" var="obj" css_class="display">
  <t:col css_class="checkboxcol">
    <s:checkbox name="customerIds" value="${obj.customerId}"
                onclick="handleCheckboxRangeSelection(this, event);"/>
  </t:col>
  <t:col name="customerId" title="ID"/>
  <t:col name="firstName" title="First Name"/>
  <t:col name="lastName" title="Last Name"/>
  <t:col>
    <s:link href="/Customer.action" event="preEdit">
      Edit
      <s:param name="customer.customerId" value="${obj.customerId}"/>
      <s:param name="page" value="${actionBean.page}"/>
    </s:link>
  </t:col>
</t:table>

Of course the tags work with the JSTL tags (like c:if, etc.). The only thing you can't do within the body of a tag file tag is add Java scriptlet code, but this isn't as much of a limitation as you might think. If I need scriptlet stuff, I just put the logic in to a tag and drop the tag in. Easy.

So, tag files can be pretty much whatever you want them to be. At the most basic level, it's simple cut and paste refactoring. Grab a chunk of layout, cut it out, do some simple parameterization, and replace it with a tag invocation.

At a higher level, you can do sophisticated things like this table tag I have here.

You can try the code

<View
    style={{
      alignItems: 'center',
      justifyContent: 'center'
    }}
  >
    <View
      style={{
        position: 'absolute',
        margin: 'auto',
        width: 50,
        height: 50
      }}
    />
  </View>

Short answer

The device pixel ratio is the ratio between physical pixels and logical pixels. For instance, the iPhone 4 and iPhone 4S report a device pixel ratio of 2, because the physical linear resolution is double the logical linear resolution.

• Physical resolution: 960 x 640
• Logical resolution: 480 x 320

The formula is:

Where:

is the physical linear resolution

and:

is the logical linear resolution

Other devices report different device pixel ratios, including non-integer ones. For example, the Nokia Lumia 1020 reports 1.6667, the Samsumg Galaxy S4 reports 3, and the Apple iPhone 6 Plus reports 2.46 (source: dpilove). But this does not change anything in principle, as you should never design for any one specific device.

Discussion

The CSS "pixel" is not even defined as "one picture element on some screen", but rather as a non-linear angular measurement of viewing angle, which is approximately of an inch at arm's length. Source: CSS Absolute Lengths

This has lots of implications when it comes to web design, such as preparing high-definition image resources and carefully applying different images at different device pixel ratios. You wouldn't want to force a low-end device to download a very high resolution image, only to downscale it locally. You also don't want high-end devices to upscale low resolution images for a blurry user experience.

If you are stuck with bitmap images, to accommodate for many different device pixel ratios, you should use CSS Media Queries to provide different sets of resources for different groups of devices. Combine this with nice tricks like background-size: cover or explicitly set the background-size to percentage values.

Example

#element { background-image: url('lores.png'); }

@media only screen and (min-device-pixel-ratio: 2) {
    #element { background-image: url('hires.png'); }
}

@media only screen and (min-device-pixel-ratio: 3) {
    #element { background-image: url('superhires.png'); }
}

This way, each device type only loads the correct image resource. Also keep in mind that the px unit in CSS always operates on logical pixels.

A case for vector graphics

As more and more device types appear, it gets trickier to provide all of them with adequate bitmap resources. In CSS, media queries is currently the only way, and in HTML5, the picture element lets you use different sources for different media queries, but the support is still not 100 % since most web developers still have to support IE11 for a while more (source: caniuse).

If you need crisp images for icons, line-art, design elements that are not photos, you need to start thinking about SVG, which scales beautifully to all resolutions.

A clear way without any need of regExp and any external libraries.

public static String trimLeadingZeros(String source) {
    for (int i = 0; i < source.length(); ++i) {
        char c = source.charAt(i);
        if (c != '0') {
            return source.substring(i);
        }
    }
    return ""; // or return "0";
}

You can store images in MySQL as blobs. However, this is problematic for a couple of reasons:

• The images can be harder to manipulate: you must first retrieve them from the database before bulk operations can be performed.
• Except in very rare cases where the entire database is stored in RAM, MySQL databases are ultimately stored on disk. This means that your DB images are converted to blobs, inserted into a database, and then stored on disk; you can save a lot of overhead by simply storing them on disk.

Instead, consider updating your table to add an image_path field. For example:

ALTER TABLE `your_table`
ADD COLUMN `image_path` varchar(1024)

Then store your images on disk, and update the table with the image path. When you need to use the images, retrieve them from disk using the path specified.

An advantageous side-effect of this approach is that the images do not necessarily be stored on disk; you could just as easily store a URL instead of an image path, and retrieve images from any internet-connected location.

There is a Symfony package for this: https://symfony.com/doc/current/components/var_dumper.html.

string s = o as string; // 2

Is prefered, as it avoids the performance penalty of double casting.

I added the following aliases to my .gitconfig file. This allows me to delete branches with or without specifying the branch name. Branch name is defaulted to the current branch if no argument is passed in.

[alias]
    branch-name = rev-parse --abbrev-ref HEAD     

    rm-remote-branch = !"f() { branch=${1-$(git branch-name)}; git push origin :$branch; }; f"
    rm-local-branch = !"f() { branch=${1-$(git branch-name)}; git checkout master; git branch -d $branch; }; f"
    rm-branch-fully = !"f() { branch=${1-$(git branch-name)}; git rm-local-branch $branch; git rm-remote-branch $branch; }; f"

The following steps work fine on macOS Sierra 10.12.4. Note that after brew installs Docker, the docker command (symbolic link) is not available at /usr/local/bin. Running the Docker app for the first time creates this symbolic link. See the detailed steps below.

1. Install Docker.

   brew cask install docker
   

2. Launch Docker.

   • Press ? + Space to bring up Spotlight Search and enter Docker to launch Docker.
   • In the Docker needs privileged access dialog box, click OK.
   • Enter password and click OK.

   When Docker is launched in this manner, a Docker whale icon appears in the status menu. As soon as the whale icon appears, the symbolic links for docker, docker-compose, docker-credential-osxkeychain and docker-machine are created in /usr/local/bin.

   $ ls -l /usr/local/bin/docker*
   lrwxr-xr-x  1 susam  domain Users  67 Apr 12 14:14 /usr/local/bin/docker -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker
   lrwxr-xr-x  1 susam  domain Users  75 Apr 12 14:14 /usr/local/bin/docker-compose -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-compose
   lrwxr-xr-x  1 susam  domain Users  90 Apr 12 14:14 /usr/local/bin/docker-credential-osxkeychain -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-credential-osxkeychain
   lrwxr-xr-x  1 susam  domain Users  75 Apr 12 14:14 /usr/local/bin/docker-machine -> /Users/susam/Library/Group Containers/group.com.docker/bin/docker-machine
   

3. Click on the docker whale icon in the status menu and wait for it to show Docker is running.

   

4. Test that docker works fine.

   $ docker run hello-world
   Unable to find image 'hello-world:latest' locally
   latest: Pulling from library/hello-world
   78445dd45222: Pull complete
   Digest: sha256:c5515758d4c5e1e838e9cd307f6c6a0d620b5e07e6f927b07d05f6d12a1ac8d7
   Status: Downloaded newer image for hello-world:latest
   
   Hello from Docker!
   This message shows that your installation appears to be working correctly.
   
   To generate this message, Docker took the following steps:
    1. The Docker client contacted the Docker daemon.
    2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
    3. The Docker daemon created a new container from that image which runs the
       executable that produces the output you are currently reading.
    4. The Docker daemon streamed that output to the Docker client, which sent it
       to your terminal.
   
   To try something more ambitious, you can run an Ubuntu container with:
    $ docker run -it ubuntu bash
   
   Share images, automate workflows, and more with a free Docker ID:
    https://cloud.docker.com/
   
   For more examples and ideas, visit:
    https://docs.docker.com/engine/userguide/
   
   $ docker version
   Client:
    Version:      17.03.1-ce
    API version:  1.27
    Go version:   go1.7.5
    Git commit:   c6d412e
    Built:        Tue Mar 28 00:40:02 2017
    OS/Arch:      darwin/amd64
   
   Server:
    Version:      17.03.1-ce
    API version:  1.27 (minimum version 1.12)
    Go version:   go1.7.5
    Git commit:   c6d412e
    Built:        Fri Mar 24 00:00:50 2017
    OS/Arch:      linux/amd64
    Experimental: true
   

5. If you are going to use docker-machine to create virtual machines, install VirtualBox.

   brew cask install virtualbox
   

   Note that if VirtualBox is not installed, then docker-machine fails with the following error.

   $ docker-machine create manager
   Running pre-create checks...
   Error with pre-create check: "VBoxManage not found. Make sure VirtualBox is installed and VBoxManage is in the path"
   

As many people suggested, you could use std::make_pair.

But I would like to point out another method of doing the same:

revenue.push_back({"string",map[i].second});

push_back() accepts a single parameter, so you could use "{}" to achieve this!

The other answers answer your question. Another important thing to know about names in Python is that they are either local or global on a per-scope basis.

Consider this, for example:

value = 42

def doit():
    print value
    value = 0

doit()
print value

You can probably guess that the value = 0 statement will be assigning to a local variable and not affect the value of the same variable declared outside the doit() function. You may be more surprised to discover that the code above won't run. The statement print value inside the function produces an UnboundLocalError.

The reason is that Python has noticed that, elsewhere in the function, you assign the name value, and also value is nowhere declared global. That makes it a local variable. But when you try to print it, the local name hasn't been defined yet. Python in this case does not fall back to looking for the name as a global variable, as some other languages do. Essentially, you cannot access a global variable if you have defined a local variable of the same name anywhere in the function.

Since iOS 11, you can use the native framework called PDFKit for displaying and manipulating PDFs.

After importing PDFKit, you should initialize a PDFView with a local or a remote URL and display it in your view.

if let url = Bundle.main.url(forResource: "example", withExtension: "pdf") {
    let pdfView = PDFView(frame: view.frame)
    pdfView.document = PDFDocument(url: url)
    view.addSubview(pdfView)
}

Read more about PDFKit in the Apple Developer documentation.

Check to make sure that your imports are correct. I had a similar problem where R was pointing to the Android system R file, not my local one.

var statuses = new[] { "A", "B", "C" };

var filteredOrders = from order in orders.Order
                             where statuses.Contains(order.StatusCode)
                             select order;

Split Method

data = input_string
df = pd.DataFrame([x.split(';') for x in data.split('\n')])
print(df)

For anyone who came here looking for these files (Like me), you can usually find them by adding .map to the end of the URL:

https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css.map

Be sure to replace the version with whatever version of Bootstrap you're using.

There's no need to write a custom directive. Angular's documentation is good but not complete. In fact, there is a directive called ngRequired, that takes an Angular expression.

<input type='email'
       name='email'
       ng-model='contact.email' 
       placeholder='[email protected]'
       ng-required='!contact.phone' />

<input type='text'
       ng-model='contact.phone'             
       placeholder='(xxx) xxx-xxxx'
       ng-required='!contact.email' />  

Here's a more complete example: http://jsfiddle.net/uptnx/1/

The accepted answer works, but if:

• you don't know the content's dimensions
• the content is dynamic
• you want to be future proof

use this:

.centered {
  position: fixed; /* or absolute */
  top: 50%;
  left: 50%;
  /* bring your own prefixes */
  transform: translate(-50%, -50%);
}

More information about centering content in this excellent CSS-Tricks article.

.center{
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

Another great guide about flexboxs from CSS Tricks; http://css-tricks.com/snippets/css/a-guide-to-flexbox/

... is syntax for variadic arguments.

I think it is implemented by the complier using slice ([]Type), just like the function append :

func append(slice []Type, elems ...Type) []Type

when you use "elems" in "append", actually it is a slice([]type). So "a = append(a[:0], a[1:]...)" means "a = append(a[0:0], a[1:])"

a[0:0] is a slice which has nothing

a[1:] is "Hello2 Hello3"

This is how it works

you can try:

services:
  nameis:
    container_name: hi_my
    build: .
    image: hi_my_nameis:v1.0.0

JUST REMOVE the import.android.R;

Then the R.layout.(XML LAYOUTNAME) will turn to BLUE

IT TOOK ME HOURS TO FIND THIS ONE ERROR

I had the same problem. What I did was:

sudo apt-get update

And then reinstall ruby-full

sudo apt-get install ruby-full

According to W3Schools, HTML 5 lets you do this using a new "srcdoc" attribute, but the browser support seems very limited.

Somewhere, you need to tell Apache that people are allowed to see contents of this directory.

<Directory "F:/bar/public">
    Order Allow,Deny
    Allow from All
    # Any other directory-specific stuff
</Directory>

More info

Arrays.toString(int []) works for me.

You can also create the application.properties file manually.

SpringApplication will load properties from application.properties files in the following locations and add them to the Spring Environment:

• A /config subdirectory of the current directory.
• The current directory
• A classpath /config package
• The classpath root

The list is ordered by precedence (properties defined in locations higher in the list override those defined in lower locations). (From the Spring boot features external configuration doc page)

So just go ahead and create it

Update - As stated in some of the comments, running brew cleanup could possibly fix this error, if that alone doesn't fix it, you might try upgrading individual packages or all your brew packages.

I just had this same problem. Upgrading Homebrew and then cleaning up worked for me. This error likely showed up for me because of a mismatch in package versions. None of the above solutions resolved my error, but running the following homebrew commands did.

Caution - This will upgrade all your brew packages, including, but not limited to PHP. If you only want to upgrade specific packages make sure to be specific.

brew upgrade // for upgrading all packages -- this is the command I used

brew upgrade {package} // for upgrading a specific package

and finally

brew cleanup

If you can use bootstrap3 then you can use css "navbar-fixed-top" also you need to add below css to push your page content down

body{

   margin-top:100px;
}

data=np.genfromtxt(csv_file, delimiter=',', dtype='unicode')

It works fine for me.

This is the code with a variable that defines the random index:

import random

foo = ['a', 'b', 'c', 'd', 'e']
randomindex = random.randint(0,len(foo)-1) 
print (foo[randomindex])
## print (randomindex)

This is the code without the variable:

import random

foo = ['a', 'b', 'c', 'd', 'e']
print (foo[random.randint(0,len(foo)-1)])

And this is the code in the shortest and smartest way to do it:

import random

foo = ['a', 'b', 'c', 'd', 'e']
print(random.choice(foo))

(python 2.7)

An HTML parser should be used for this purpose rather than regular expressions. A Perl program that makes use of HTML::TreeBuilder:

Program

#!/usr/bin/env perl

use strict;
use warnings;

use HTML::TreeBuilder;

my $tree = HTML::TreeBuilder->new_from_file( \*DATA );
my @elements = $tree->look_down(
    sub { defined $_[0]->attr('name') }
);

for (@elements) {
    print $_->attr('name'), "\n";
}

__DATA__
<table name="content_analyzer" primary-key="id">
  <type="global" />
</table>
<table name="content_analyzer2" primary-key="id">
  <type="global" />
</table>
<table name="content_analyzer_items" primary-key="id">
  <type="global" />
</table>

Output

content_analyzer
content_analyzer2
content_analyzer_items

Have a look at this list on Wikipedia about which browsers support SVG. It also provides links to more details in the footnotes. Firefox for example supports basic SVG, but at the moment lacks most animation features.

A tutorial about how to create SVG objects using Javascript can be found here:

var svgns = "http://www.w3.org/2000/svg";
var svgDocument = evt.target.ownerDocument;
var shape = svgDocument.createElementNS(svgns, "circle");
shape.setAttributeNS(null, "cx", 25);
shape.setAttributeNS(null, "cy", 25);
shape.setAttributeNS(null, "r",  20);
shape.setAttributeNS(null, "fill", "green"); 

In JBoss Developer 4.0 and above (Eclipse-based), this is a tad easier. Just right-click on your file or folder that contains xml-based files, choose "Exclude Validation", then click "Yes" to confirm. Then right-click the same files/folder again and click on "Validate", which will remove the errors with a confirmation.

For this frame:

    <iframe src="" name="" id=""></iframe>

I tried this on my css code:

    iframe#put the value of id here::-webkit-scrollbar {
         display: none;
    }

Just import tensortflow and use keras, it's that easy.

import tensorflow as tf
# your code here
with tf.device('/gpu:0'):
    model.fit(X, y, epochs=20, batch_size=128, callbacks=callbacks_list)

Use the ToDictionary method directly.

var result = 
  // as Jon Skeet pointed out, OrderBy is useless here, I just leave it 
  // show how to use OrderBy in a LINQ query
  myClassCollection.OrderBy(mc => mc.SomePropToSortOn)
                   .ToDictionary(mc => mc.KeyProp.ToString(), 
                                 mc => mc.ValueProp.ToString(), 
                                 StringComparer.OrdinalIgnoreCase);

You probably meant this:

require 'active_support/core_ext' # for titleize

myHash = {company_name:"MyCompany", street:"Mainstreet", postcode:"1234", city:"MyCity", free_seats:"3"}

def cleanup string
  string.titleize
end

def format(hash)
  output = {}
  output[:company_name] = cleanup(hash[:company_name])
  output[:street] = cleanup(hash[:street])
  output
end

format(myHash) # => {:company_name=>"My Company", :street=>"Mainstreet"}

Please read documentation on Hash#each

The checkbox is in a td, so need to get the parent first:

$("input:checkbox").on("change", function() {
    $(this).parent().next().find("label").text("TESTTTT");
});

Alternatively, find a label which has a for with the same id (perhaps more performant than reverse traversal) :

$("input:checkbox").on("change", function() {
    $("label[for='" + $(this).attr('id') + "']").text("TESTTTT");
});

Or, to be more succinct just this.id:

$("input:checkbox").on("change", function() {
    $("label[for='" + this.id + "']").text("TESTTTT");
});

PLease make sure to backup your changes before running these commmand in a separate folder

git checkout branch_name

Checkout on your branch

git merge --abort

Abort the merge

git status

Check status of the code after aborting the merge

git reset --hard origin/branch_name

these command will reset your changes and align your code with the branch_name (branch) code.

@Nazar Medeiros - Your solution uses passport with Express. I am not using passport, just express-jwt. I might be doing something wrong, but when a user logs in, the token needs to return to the client side. From what I have found so far, this means we have to return a json with the token and therefor cannot call redirect. Is there something I am missing there?

To get around this, I simply return the token, store it in my cookies and then make a ajax GET request (with the valid token). When that ajax call returns I replace the body's html with the returned HTML. This is probably not the right way to do it, but I can't find a better way. Here is my JQuery JavaScript code.

function loginUser(){
  $.post("/users/login", {
    username: $( '#login_input_username' ).val(),
   password: $( '#login_input_password' ).val()
 }).done(function(res){
    document.cookie = "token = " + res.token;
    redirectToHome();
  })
}

function redirectToHome(){
  var settings = {
    "async": true,
    "crossDomain": true,
    "url": "/home",
    "type": "GET",
    "headers": {
      "authorization": "Bearer " + getCookie('token'),
      "cache-control": "no-cache"
    }
  }

  $.ajax(settings).done(function (response) {
    $('body').replaceWith(response);
  });
}

function getCookie(cname) {
    var name = cname + "=";
    var decodedCookie = decodeURIComponent(document.cookie);
    var ca = decodedCookie.split(';');
    for(var i = 0; i <ca.length; i++) {
        var c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return "";
}

Keys must be comparable, but you haven't defined a suitable operator< for your custom class.

This is not a solution but I hope it helps: This comes close except that when the KEY = %userprofile%\desktop the copy fails even though zdesktop=%userprofile%\desktop. I think because the embedded %userprofile% is not getting translated.

REG QUERY "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v Desktop>z.out
for /f "tokens=3 skip=4" %%t in (z.out) do set zdesktop=%%t
copy myicon %zdesktop%
set zdesktop=
del z.out

So it sucessfully parses out the REG key but if the key contains an embedded %var% it doesn't get translated during the copy command.

Not entirely sure what you are after but in PL/SQL you would simply

DECLARE
  v_variable INTEGER;
BEGIN
  SELECT mycolumn
    INTO v_variable
    FROM myTable;
END;

Ollie.

Rails 4

GroupUser.where.not(user_id: me)

Give permission in .htaccess as follows:

<Directory "Your directory path/uploads/">
Allow from all
</Directory>

If you want to plot lines instead of points, see this example, modified here to plot good/bad points representing a function as a black/red as appropriate:

def plot(xx, yy, good):
    """Plot data

    Good parts are plotted as black, bad parts as red.

    Parameters
    ----------
    xx, yy : 1D arrays
        Data to plot.
    good : `numpy.ndarray`, boolean
        Boolean array indicating if point is good.
    """
    import numpy as np
    import matplotlib.pyplot as plt
    fig, ax = plt.subplots()
    from matplotlib.colors import from_levels_and_colors
    from matplotlib.collections import LineCollection
    cmap, norm = from_levels_and_colors([0.0, 0.5, 1.5], ['red', 'black'])
    points = np.array([xx, yy]).T.reshape(-1, 1, 2)
    segments = np.concatenate([points[:-1], points[1:]], axis=1)
    lines = LineCollection(segments, cmap=cmap, norm=norm)
    lines.set_array(good.astype(int))
    ax.add_collection(lines)
    plt.show()

You have your storyboard set up to expect an outlet called tableView but the actual outlet name is myTableView.

If you delete the connection in the storyboard and reconnect to the right variable name, it should fix the problem.

What you're trying to do is to monitor the property of attribute in directive. You can watch the property of attribute changes using $observe() as follows:

angular.module('myApp').directive('conversation', function() {
  return {
    restrict: 'E',
    replace: true,
    compile: function(tElement, attr) {
      attr.$observe('typeId', function(data) {
            console.log("Updated data ", data);
      }, true);

    }
  };
});

Keep in mind that I used the 'compile' function in the directive here because you haven't mentioned if you have any models and whether this is performance sensitive.

If you have models, you need to change the 'compile' function to 'link' or use 'controller' and to monitor the property of a model changes, you should use $watch(), and take of the angular {{}} brackets from the property, example:

<conversation style="height:300px" type="convo" type-id="some_prop"></conversation>

And in the directive:

angular.module('myApp').directive('conversation', function() {
  return {
    scope: {
      typeId: '=',
    },
    link: function(scope, elm, attr) {

      scope.$watch('typeId', function(newValue, oldValue) {
          if (newValue !== oldValue) {
            // You actions here
            console.log("I got the new value! ", newValue);
          }
      }, true);

    }
  };
});

To remove everything before a specific char, use below.

string1 = string1.Substring(string1.IndexOf('$') + 1);

What this does is, takes everything before the $ char and removes it. Now if you want to remove the items after a character, just change the +1 to a -1 and you are set!

But for a URL, I would use the built in .NET class to take of that.

This while else statement should only execute the else code when the condition is false, this means it will always execute it. But, there is a catch, when you use the break keyword within the while loop, the else statement should not execute.

The code that satisfies does condition is only:

boolean entered = false;
while (condition) {
   entered = true; // Set it to true stright away
   // While loop code


   // If you want to break out of this loop
   if (condition) {
      entered = false;
      break;
   }
} if (!entered) {
   // else code
}

Now it has full support in latest version of major browsers like Chrome, Edge, Firefox , Safari etc. Here's the comparison between the null operator and Nullish Coalescing Operator

const response = {
        settings: {
            nullValue: null,
            height: 400,
            animationDuration: 0,
            headerText: '',
            showSplashScreen: false
        }
    };
    /* OR Operator */
    const undefinedValue = response.settings.undefinedValue || 'Default Value'; // 'Default Value'
    const nullValue = response.settings.nullValue || 'Default Value'; // 'Default Value'
    const headerText = response.settings.headerText || 'Hello, world!'; //  'Hello, world!'
    const animationDuration = response.settings.animationDuration || 300; //  300
    const showSplashScreen = response.settings.showSplashScreen || true; //  true
    /* Nullish Coalescing Operator */
    const undefinedValue = response.settings.undefinedValue ?? 'Default Value'; // 'Default Value'
    const nullValue = response.settings.nullValue ?? ''Default Value'; // 'Default Value'
    const headerText = response.settings.headerText ?? 'Hello, world!'; // ''
    const animationDuration = response.settings.animationDuration ?? 300; // 0
    const showSplashScreen = response.settings.showSplashScreen ?? true; //  false

Your best bet is

$(document).keyup(function(e) { 
    if (e.which === 13) $('.save').click();   // enter 
    if (e.which === 27) $('.cancel').click(); // esc   

    /* OPTIONAL: Only if you want other elements to ignore event */
    e.preventDefault();
    e.stopPropagation();
});

Summary

• which is more preferable than keyCode because it is normalized
• keyup is more preferable than keydown because keydown may occur multiple times if user keeps it pressed.
• Do not use keypress unless you want to capture actual characters.

Interestingly Bootstrap uses keydown and keyCode in its dropdown component (as of 3.0.2)! I think it's probably poor choice there.

Related snippet from JQuery doc

While browsers use differing properties to store this information, jQuery normalizes the .which property so you can reliably use it to retrieve the key code. This code corresponds to a key on the keyboard, including codes for special keys such as arrows. For catching actual text entry, .keypress() may be a better choice.

Other item of interest: JavaScript Keypress Library

You can use a for loop:

for file in * ; do
   echo "$file"
done

Note that if the command in question accepts multiple arguments, then using xargs is almost always more efficient as it only has to spawn the utility in question once instead of multiple times.

For Windows, launch cmd prompt and route to the path(usually bin) where you have your tomcat startup script.

C:\opt\isv\tomcat-7.0\grid\bin>version
Using CATALINA_BASE:   "C:\opt\isv\tomcat-7.0\grid"
Using CATALINA_HOME:   "C:\opt\isv\tomcat-7.0\grid"
Using CATALINA_TMPDIR: "C:\opt\isv\tomcat-7.0\grid\temp"
Using JRE_HOME:        "C:\opt\isv\devtools\jdk1.8.0_45"
Using CLASSPATH:       "C:\opt\isv\tomcat-7.0\grid\bin\bootstrap.jar;C:\opt\isv\tomcat-7.0\grid\bin\tomcat-juli.jar"
Server version: Apache Tomcat/7.0.55
Server built:   Jul 18 2014 05:34:04
Server number:  7.0.55.0
OS Name:        Windows 7
OS Version:     6.1
Architecture:   x86
JVM Version:    1.8.0_45-b15
JVM Vendor:     Oracle Corporation
C:\opt\isv\tomcat-7.0\grid\bin>

use like this:

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

    WebView myWebView = (WebView) findViewById(R.id.webView1);
    myWebView.setWebViewClient(new WebViewClient());
    myWebView.loadUrl("https://google.com");
}

When you call sqlite3_open() you specify the filepath the database is opened from/saved to, if it is not an absolute path it is specified relative to your current working directory.

Node.js:

var fs = require('fs');
fs.writeFile("test.txt", jsonData, function(err) {
    if (err) {
        console.log(err);
    }
});

Browser (webapi):

function download(content, fileName, contentType) {
    var a = document.createElement("a");
    var file = new Blob([content], {type: contentType});
    a.href = URL.createObjectURL(file);
    a.download = fileName;
    a.click();
}
download(jsonData, 'json.txt', 'text/plain');

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' 
    IDENTIFIED BY 'YOUR_PASS' 
    WITH GRANT OPTION;
FLUSH PRIVILEGES;  

*.* = DB.TABLE you can restrict user to specific database and specific table.

'root'@'%' you can change root with any user you created and % is to allow all IP. You can restrict it by changing %.168.1.1 etc too.

If that doesn't resolve, then also modify my.cnf or my.ini and comment these lines

bind-address = 127.0.0.1 to #bind-address = 127.0.0.1
and
skip-networking to #skip-networking

• Restart MySQL and repeat above steps again.

Raspberry Pi, I found bind-address configuration under \etc\mysql\mariadb.conf.d\50-server.cnf

You can also check if you have an empty string as argument so you can call like:

foo('blah', "", 'non-default y value', null);

Below the function:

function foo($blah, $x = null, $y = null, $z = null) {
    if (null === $x || "" === $x) {
        $x = "some value";
    }

    if (null === $y || "" === $y) {
        $y = "some other value";
    }

    if (null === $z || "" === $z) {
        $z = "some other value";
    }

    code here!

}

It doesn't matter if you fill null or "", you will still get the same result.

I am referencing Microsoft.CommerceServer.Runtime.Orders and experienced this error. This project is old and has Target framework .NET 2.0. In output I had this error:

C:\Windows\Microsoft.NET\Framework\v4.0.30319\Microsoft.Common.targets(1605,5): warning MSB3268: The primary reference "Microsoft.CommerceServer.Runtime" could not be resolved because it has an indirect dependency on the framework assembly "System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" which could not be resolved in the currently targeted framework. ".NETFramework,Version=v2.0". To resolve this problem, either remove the reference "Microsoft.CommerceServer.Runtime" or retarget your application to a framework version which contains "System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"

I simply changed the target framework to .NET 4 and now it builds.

The PictureBox.Load(string url) method "sets the ImageLocation to the specified URL and displays the image indicated."

all answers are great but I just want to give you a good example

select replace('this value from table', 'table',  'table but updated')

this SQL statement will replace the existence of the word "table" (second parameter) inside the given statement(first parameter) with the third parameter

the initial value is this value from table but after executing replace function it will be this value from table but updated

and here is a real example

UPDATE publication
SET doi = replace(doi, '10.7440/perifrasis', '10.25025/perifrasis')
WHERE doi like '10.7440/perifrasis%'

for example if we have this value

10.7440/perifrasis.2010.1.issue-1

it will become

10.25025/perifrasis.2010.1.issue-1

hope this gives you better visualization

I have not used Bootstrap but I worked on Zurb Foundation. On that I used to add space like this.

<div id="main" class="container" role="main">
    <div class="row">

        <div class="span5 offset1">
            <h2>Welcome</h2>
            <p>Hello and welcome to my website.</p>
        </div>
        <div class="span6">
            Image Here (TODO)
        </div>
    </div>

Visit this link: http://getbootstrap.com/2.3.2/scaffolding.html and read the section: Offsetting columns.

I think I know what you are doing wrong. If you are applying padding to the span6 like this:

<div class="span6" style="padding-left:5px;">
    <h2>Welcome</h2>
    <p>Hello and welcome to my website.</p>
</div>

It is wrong. What you have to do is add padding to the elements inside:

<div class="span6">
    <h2 style="padding-left:5px;">Welcome</h2>
    <p  style="padding-left:5px;">Hello and welcome to my website.</p>
</div>

<Button x:Name="myBtn_DetailsTab_Save" FlowDirection="LeftToRight"  HorizontalAlignment="Left" Margin="835,544,0,0" VerticalAlignment="Top"  Width="143" Height="53" BorderBrush="#FF0F6287" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontFamily="B Titr" FontSize="15" FontWeight="Bold" BorderThickness="2" Click="myBtn_DetailsTab_Save_Click">
    <StackPanel HorizontalAlignment="Stretch" Background="#FF1FB3F5" Cursor="Hand" >
        <Image HorizontalAlignment="Left"  Source="image/bg/Save.png" Height="36" Width="124" />
        <TextBlock HorizontalAlignment="Center" Width="84" Height="22" VerticalAlignment="Top" Margin="0,-31,-58,0" Text="??? ?????" />
    </StackPanel>
</Button>

this prototype:

  int execlp(const char *file, const char *arg, ...);

Says that execlp ìs a variable argument function. It takes 2 const char *. The rest of the arguments, if any, are the additional arguments to hand over to program we want to run - also char * - all these are C strings (and the last argument must be a NULL pointer)

So, the file argument is the path name of an executable file to be executed. arg is the string we want to appear as argv[0] in the executable. By convention, argv[0] is just the file name of the executable, normally it's set to the same as file.

The ... are now the additional arguments to give to the executable.

Say you run this from a commandline/shell:

$ ls

That'd be execlp("ls", "ls", (char *)NULL); Or if you run

$ ls -l /

That'd be execlp("ls", "ls", "-l", "/", (char *)NULL);

So on to execlp("/bin/sh", ..., "ls -l /bin/??", ...);

Here you are going to the shell, /bin/sh , and you're giving the shell a command to execute. That command is "ls -l /bin/??". You can run that manually from a commandline/shell:

 $ ls -l /bin/??

Now, how do you run a shell and tell it to execute a command ? You open up the documentation/man page for your shell and read it.

What you want to run is:

$ /bin/sh -c "ls -l /bin/??"

This becomes

  execlp("/bin/sh","/bin/sh", "-c", "ls -l /bin/??", (char *)NULL);

Side note: The /bin/?? is doing pattern matching, this pattern matching is done by the shell, and it expands to all files under /bin/ with 2 characters. If you simply did

  execlp("ls","ls", "-l", "/bin/??", (char *)NULL);

Probably nothing would happen (unless there's a file actually named /bin/??) as there's no shell that interprets and expands /bin/??

Expanding on Dejw's answer (edit2):

File.open(filename,'w'){ |f|
  uri = URI.parse(url)
  Net::HTTP.start(uri.host,uri.port){ |http| 
    http.request_get(uri.path){ |res| 
      res.read_body{ |seg|
        f << seg
#hack -- adjust to suit:
        sleep 0.005 
      }
    }
  }
}

where filename and url are strings.

The sleep command is a hack that can dramatically reduce CPU usage when the network is the limiting factor. Net::HTTP doesn't wait for the buffer (16kB in v1.9.2) to fill before yielding, so the CPU busies itself moving small chunks around. Sleeping for a moment gives the buffer a chance to fill between writes, and CPU usage is comparable to a curl solution, 4-5x difference in my application. A more robust solution might examine progress of f.pos and adjust the timeout to target, say, 95% of the buffer size -- in fact that's how I got the 0.005 number in my example.

Sorry, but I don't know a more elegant way of having Ruby wait for the buffer to fill.

Edit:

This is a version that automatically adjusts itself to keep the buffer just at or below capacity. It's an inelegant solution, but it seems to be just as fast, and to use as little CPU time, as it's calling out to curl.

It works in three stages. A brief learning period with a deliberately long sleep time establishes the size of a full buffer. The drop period reduces the sleep time quickly with each iteration, by multiplying it by a larger factor, until it finds an under-filled buffer. Then, during the normal period, it adjusts up and down by a smaller factor.

My Ruby's a little rusty, so I'm sure this can be improved upon. First of all, there's no error handling. Also, maybe it could be separated into an object, away from the downloading itself, so that you'd just call autosleep.sleep(f.pos) in your loop? Even better, Net::HTTP could be changed to wait for a full buffer before yielding :-)

def http_to_file(filename,url,opt={})
  opt = {
    :init_pause => 0.1,    #start by waiting this long each time
                           # it's deliberately long so we can see 
                           # what a full buffer looks like
    :learn_period => 0.3,  #keep the initial pause for at least this many seconds
    :drop => 1.5,          #fast reducing factor to find roughly optimized pause time
    :adjust => 1.05        #during the normal period, adjust up or down by this factor
  }.merge(opt)
  pause = opt[:init_pause]
  learn = 1 + (opt[:learn_period]/pause).to_i
  drop_period = true
  delta = 0
  max_delta = 0
  last_pos = 0
  File.open(filename,'w'){ |f|
    uri = URI.parse(url)
    Net::HTTP.start(uri.host,uri.port){ |http|
      http.request_get(uri.path){ |res|
        res.read_body{ |seg|
          f << seg
          delta = f.pos - last_pos
          last_pos += delta
          if delta > max_delta then max_delta = delta end
          if learn <= 0 then
            learn -= 1
          elsif delta == max_delta then
            if drop_period then
              pause /= opt[:drop_factor]
            else
              pause /= opt[:adjust]
            end
          elsif delta < max_delta then
            drop_period = false
            pause *= opt[:adjust]
          end
          sleep(pause)
        }
      }
    }
  }
end

Yeah, I had the same question for a long time and I found the perfect one. Here are some parameters from it.

https://maps.google.com/?parameter=value

q=

Used to specify the search query in Google maps search.
eg :

https://maps.google.com/?q=newyork or
https://maps.google.com/?q=51.03841,-114.01679

near=

Used to specify the location instead of putting it into q. Also has the added effect of allowing you to increase the AddressDetails Accuracy value by being more precise. Mostly only useful if q is a business or suchlike.

z=

Zoom level. Can be set 19 normally, but in certain cases can go up to 23.

ll=

Latitude and longitude of the map centre point. Must be in that order. Requires decimal format. Interestingly, you can use this without q, in which case it doesn’t show a marker.

sll=

Similar to ll, only this sets the lat/long of the centre point for a business search. Requires the same input criteria as ll.

t=

Sets the kind of map shown. Can be set to:

m – normal  map
k – satellite
h – hybrid
p – terrain

saddr=

Sets the starting point for directions searches. You can also add text into this in brackets to bold it in the directions sidebar.

daddr=

Sets the end point for directions searches, and again will bold any text added in brackets.You can also add "+to:" which will set via points. These can be added multiple times.

via=

Allows you to insert via points in directions. Must be in CSV format. For example, via=1,5 addresses 1 and 5 will be via points without entries in the sidebar. The start point (which is set as 0), and 2, 3 and 4 will all show full addresses.

doflg=

Changes the units used to measure distance (will default to the standard unit in country of origin). Change to ptk for metric or ptm for imperial.

msa=

Does stuff with My Maps. Set to 0 show defined My Maps, b to turn the My Maps sidebar on, 1 to show the My Maps tab on its own, or 2 to go to the new My Map creator form.

reference : http://moz.com/ugc/everything-you-never-wanted-to-know-about-google-maps-parameters

I know this is an old question, but as per my recent experience, this happens because the build resources are either deleted or Idea cannot recognize them as the source.

Wherever the error appears, provide sources for the folder/directory and this error must be resolved.

Sometimes even when we assign sources for the whole folder, individual classes might still be unavailable. For novice users simple solution is to import a fresh copy and build the application again to be good to go.

It is advisable to do a clean install after this.

[Android] if someone looking to implement timer on android using java.

you need use UI thread like this to perform operations.

Timer timer = new Timer();
timer.schedule(new TimerTask() {
           @Override
            public void run() {
                ActivityName.this.runOnUiThread(new Runnable(){
                    @Override
                      public void run() {
                       // do something
                      }        
                });
            }
        }, 2000));

another way to do is get the UriInfo instead of all the QueryParam

Then you will be able to get the queryParam as per needed in your code

@GET
@Path("/query")
public Response getUsers(@Context UriInfo info) {

    String param_1 = info.getQueryParameters().getFirst("param_1");
    String param_2 = info.getQueryParameters().getFirst("param_2");


    return Response ;

}

I had the same problem (forms with tons of text fields and unskilled users).

I solved it in this way:

function chkSubmit() {
    if (window.confirm('Do you want to store the data?')) {
        return true;
    } else {
        // some code to focus on a specific field
        return false;
    }
}

using this in the HTML code:

<form
    action="go.php" 
    method="post"
    accept-charset="utf-8"  
    enctype="multipart/form-data"
    onsubmit="return chkSubmit()"
>

In this way the ENTER key works as planned, but a confirmation (a second ENTER tap, usually) is required.

I leave to the readers the quest for a script sending the user in the field where he pressed ENTER if he decide to stay on the form.

Clone is broken, so dont use it.

THE CLONE METHOD of the Object class is a somewhat magical method that does what no pure Java method could ever do: It produces an identical copy of its object. It has been present in the primordial Object superclass since the Beta-release days of the Java compiler*; and it, like all ancient magic, requires the appropriate incantation to prevent the spell from unexpectedly backfiring

Prefer a method that copies the object

Foo copyFoo (Foo foo){
  Foo f = new Foo();
  //for all properties in FOo
  f.set(foo.get());
  return f;
}

Read more http://adtmag.com/articles/2000/01/18/effective-javaeffective-cloning.aspx

If you can create your sql statement dynamically you can do following workaround:

String myArray[][] = { { "1-1", "1-2" }, { "2-1", "2-2" }, { "3-1", "3-2" } };

StringBuffer mySql = new StringBuffer("insert into MyTable (col1, col2) values (?, ?)");

for (int i = 0; i < myArray.length - 1; i++) {
    mySql.append(", (?, ?)");
}

myStatement = myConnection.prepareStatement(mySql.toString());

for (int i = 0; i < myArray.length; i++) {
    myStatement.setString(i, myArray[i][1]);
    myStatement.setString(i, myArray[i][2]);
}
myStatement.executeUpdate();

Also worth mentioning, in C# the OR operator is short-circuiting. In your example, Close seems to be a property, but if it were a method, it's worth noting that:

if (ActionsLogWriter.Close() || ErrorDumpWriter.Close())

is fundamentally different from

if (ErrorDumpWriter.Close() || ActionsLogWriter.Close())

In C#, if the first expression returns true, the second expression will not be evaluated at all. Just be aware of this. It actually works to your advantage most of the time.

Alternatively you can use:

this.element=$(id)[0];

AFAIK you can simply use

iVal = rs.getInt("ID_PARENT");
if (rs.wasNull()) {
  // do somthing interesting to handle this situation
}

even if it is NULL.

var path = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase)?.Replace("file:\\", "");

I had the same problem, which went away after I listed my library last: gcc prog.c -lm

Async:

fs.readFile('test.txt', 'utf8', callback);

Sync:

var content = fs.readFileSync('test.txt', 'utf8');

If you really want to match only the dot, then StringComparison.Ordinal would be fastest, as there is no case-difference.

"Ordinal" doesn't use culture and/or casing rules that are not applicable anyway on a symbol like a ..

TLDR: In one line the command you are looking for:

angular.element(document.body).injector().get('serviceName')

Deep dive

AngularJS uses Dependency Injection (DI) to inject services/factories into your components,directives and other services. So what you need to do to get a service is to get the injector of AngularJS first (the injector is responsible for wiring up all the dependencies and providing them to components).

To get the injector of your app you need to grab it from an element that angular is handling. For example if your app is registered on the body element you call injector = angular.element(document.body).injector()

From the retrieved injector you can then get whatever service you like with injector.get('ServiceName')

More information on that in this answer: Can't retrieve the injector from angular
And even more here: Call AngularJS from legacy code

Another useful trick to get the $scope of a particular element. Select the element with the DOM inspection tool of your developer tools and then run the following line ($0 is always the selected element):
angular.element($0).scope()

As others mentioned, Justin's answer was close, but not quite right. I tested this using Visual Studio's "Paste JSON as C# Classes"

{
    "foos" : [
        {
            "prop1":"value1",
            "prop2":"value2"
        },
        {
            "prop1":"value3", 
            "prop2":"value4"
        }
    ]
}

The recommended way to write validation and authorization logic is to put that logic in separate request classes. This way your controller code will remain clean.

You can create a request class by executing php artisan make:request SomeRequest.

In each request class's rules() method define your validation rules:

//SomeRequest.php
public function rules()
{
   return [
    "name"    => [
          'required',
          'array', // input must be an array
          'min:3'  // there must be three members in the array
    ],
    "name.*"  => [
          'required',
          'string',   // input must be of type string
          'distinct', // members of the array must be unique
          'min:3'     // each string must have min 3 chars
    ]
  ];
}

In your controller write your route function like this:

// SomeController.php
public function store(SomeRequest $request) 
{
  // Request is already validated before reaching this point.
  // Your controller logic goes here.
}

public function update(SomeRequest $request)
{
  // It isn't uncommon for the same validation to be required
  // in multiple places in the same controller. A request class
  // can be beneficial in this way.
}

Each request class comes with pre- and post-validation hooks/methods which can be customized based on business logic and special cases in order to modify the normal behavior of request class.

You may create parent request classes for similar types of requests (e.g. web and api) requests and then encapsulate some common request logic in these parent classes.

Update

RouteData.Values["id"] + Request.Url.Query

Will match all your examples

It is not entirely clear what you are trying to achieve. MVC passes URL parameters for you through model binding.

public class CustomerController : Controller {

  public ActionResult Edit(int id) {

    int customerId = id //the id in the URL

    return View();
  }

}


public class ProductController : Controller {

  public ActionResult Edit(int id, bool allowed) { 

    int productId = id; // the id in the URL
    bool isAllowed = allowed  // the ?allowed=true in the URL

    return View();
  }

}

Adding a route mapping to your global.asax.cs file before the default will handle the /administration/ part. Or you might want to look into MVC Areas.

routes.MapRoute(
  "Admin", // Route name
  "Administration/{controller}/{action}/{id}", // URL with parameters
  new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults

If it's the raw URL data you are after then you can use one of the various URL and Request properties available in your controller action

string url = Request.RawUrl;
string query= Request.Url.Query;
string isAllowed= Request.QueryString["allowed"];

It sounds like Request.Url.PathAndQuery could be what you want.

If you want access to the raw posted data you can use

string isAllowed = Request.Params["allowed"];
string id = RouteData.Values["id"];

The information there is I think partially correct:

That's not true. An URL can use spaces. Nothing defines that a space is replaced with a + sign.

As you noted, an URL can NOT use spaces. The HTTP request would get screwed over. I'm not sure where the + is defined, though %20 is standard.

Why not simply use a range and os.walk combined with the zip? Is not the best solution, but would work too.

For example like this:

# your part before
for count, (root, dirs, files) in zip(range(0, 1), os.walk(dir_name)):
    # logic stuff
# your later part

Works for me on python 3.

Also: A break is simpler too btw. (Look at the answer from @Pieter)

The command select username from all_users; requires less privileges

In my opinion the bare minimum implementation has two requirements. A state that keeps track of whether the modal is open or not, and a portal to render the modal outside of the standard react tree.

The ModalContainer component below implements those requirements along with corresponding render functions for the modal and the trigger, which is responsible for executing the callback to open the modal.

import React from 'react';
import PropTypes from 'prop-types';
import Portal from 'react-portal';

class ModalContainer extends React.Component {
  state = {
    isOpen: false,
  };

  openModal = () => {
    this.setState(() => ({ isOpen: true }));
  }

  closeModal = () => {
    this.setState(() => ({ isOpen: false }));
  }

  renderModal() {
    return (
      this.props.renderModal({
        isOpen: this.state.isOpen,
        closeModal: this.closeModal,
      })
    );
  }

  renderTrigger() {
     return (
       this.props.renderTrigger({
         openModal: this.openModal
       })
     )
  }

  render() {
    return (
      <React.Fragment>
        <Portal>
          {this.renderModal()}
        </Portal>
        {this.renderTrigger()}
      </React.Fragment>
    );
  }
}

ModalContainer.propTypes = {
  renderModal: PropTypes.func.isRequired,
  renderTrigger: PropTypes.func.isRequired,
};

export default ModalContainer;

And here's a simple use case...

import React from 'react';
import Modal from 'react-modal';
import Fade from 'components/Animations/Fade';
import ModalContainer from 'components/ModalContainer';

const SimpleModal = ({ isOpen, closeModal }) => (
  <Fade visible={isOpen}> // example use case with animation components
    <Modal>
      <Button onClick={closeModal}>
        close modal
      </Button>
    </Modal>
  </Fade>
);

const SimpleModalButton = ({ openModal }) => (
  <button onClick={openModal}>
    open modal
  </button>
);

const SimpleButtonWithModal = () => (
   <ModalContainer
     renderModal={props => <SimpleModal {...props} />}
     renderTrigger={props => <SimpleModalButton {...props} />}
   />
);

export default SimpleButtonWithModal;

I use render functions, because I want to isolate state management and boilerplate logic from the implementation of the rendered modal and trigger component. This allows the rendered components to be whatever you want them to be. In your case, I suppose the modal component could be a connected component that receives a callback function that dispatches an asynchronous action.

If you need to send dynamic props to the modal component from the trigger component, which hopefully doesn't happen too often, I recommend wrapping the ModalContainer with a container component that manages the dynamic props in its own state and enhance the original render methods like so.

import React from 'react'
import partialRight from 'lodash/partialRight';
import ModalContainer from 'components/ModalContainer';

class ErrorModalContainer extends React.Component {
  state = { message: '' }

  onError = (message, callback) => {
    this.setState(
      () => ({ message }),
      () => callback && callback()
    );
  }

  renderModal = (props) => (
    this.props.renderModal({
       ...props,
       message: this.state.message,
    })
  )

  renderTrigger = (props) => (
    this.props.renderTrigger({
      openModal: partialRight(this.onError, props.openModal)
    })
  )

  render() {
    return (
      <ModalContainer
        renderModal={this.renderModal}
        renderTrigger={this.renderTrigger}
      />
    )
  }
}

ErrorModalContainer.propTypes = (
  ModalContainer.propTypes
);

export default ErrorModalContainer;

The short answer would be: use friend when it actually improves encapsulation. Improving readability and usability (operators << and >> are the canonical example) is also a good reason.

As for examples of improving encapsulation, classes specifically designed to work with the internals of other classes (test classes come to mind) are good candidates.

It looks like you're using python 3.x. In python3, filter, map, zip, etc return an object which is iterable, but not a list. In other words,

filter(func,data) #python 2.x

is equivalent to:

list(filter(func,data)) #python 3.x

I think it was changed because you (often) want to do the filtering in a lazy sense -- You don't need to consume all of the memory to create a list up front, as long as the iterator returns the same thing a list would during iteration.

If you're familiar with list comprehensions and generator expressions, the above filter is now (almost) equivalent to the following in python3.x:

( x for x in data if func(x) ) 

As opposed to:

[ x for x in data if func(x) ]

in python 2.x

For what it's worth.

$('.js-toggle-edit').on('click', function (e) {
    var bool = $('.js-editable').prop('readonly');
    $('.js-editable').prop('readonly', ! bool);
})

Keep in mind you can pass a closure to .prop(), and do a per element check. But in this case it doesn't matter, it's just a mass toggle.

I found 'running steps' (win32) software doing exactly what I was looking for: http://www.steppingsoftware.com/

You can load a bat file, place breakpoints / start stepping through it while seeing the output and environment variables.

The evaluation version only allows to step through 50 lines... Does anyone have a free alternative with similar functionality?

Using command prompt in windows you can use below command to get class files.

wsimport "complete file path of your .wsdl file"
example : wsimport C:\Users\schemas\com\myprofile\myprofile2019.wsdl

if you want to generate source code you should be using below commnad.

wsimport -keep -s src "complete file path of your .wsdl file"
example : wsimport -keep -s src C:\Users\schemas\com\myprofile\myprofile2019.wsdl

Note : Here "-s" means source directory and "src" is name of folder that should be created before executing this command. Wsimport is a tool which is bundled along with JAVA SE, no seperate download is required.

Destructuring assignment with dynamic properties

This solution not only applies to your specific example but is more generally applicable:

const subset2 = (x, y) => ({[x]:a, [y]:b}) => ({[x]:a, [y]:b});_x000D_
_x000D_
const subset3 = (x, y, z) => ({[x]:a, [y]:b, [z]:c}) => ({[x]:a, [y]:b, [z]:c});_x000D_
_x000D_
// const subset4...etc._x000D_
_x000D_
_x000D_
const o = {a:1, b:2, c:3, d:4, e:5};_x000D_
_x000D_
_x000D_
const pickBD = subset2("b", "d");_x000D_
const pickACE = subset3("a", "c", "e");_x000D_
_x000D_
_x000D_
console.log(_x000D_
  pickBD(o), // {b:2, d:4}_x000D_
  pickACE(o) // {a:1, c:3, e:5}_x000D_
);

You can easily define subset4 etc. to take more properties into account.

If your context is android application , then make sure your android device time is set to current date and time. The underlying exception is "The SSL certificates was not getting authenticated."

There is one more way to solve this problem. 1)Go to Project Explorer. Go to the target folder of your project, right-click and delete the target folder. 2)Right-click on your project, select run as Maven Build. 3)After you get Build Success on the console; right click on the project folder and select refresh. After performing the above steps, try to run your project.Your problem should be solved now.

This should work:

soup = BeautifulSoup(sdata)
mydivs = soup.findAll('div')
for div in mydivs: 
    if (div.find(class_ == "stylelistrow"):
        print div

The main differenece is that bidirectional relationship provides navigational access in both directions, so that you can access the other side without explicit queries. Also it allows you to apply cascading options to both directions.

Note that navigational access is not always good, especially for "one-to-very-many" and "many-to-very-many" relationships. Imagine a Group that contains thousands of Users:

• How would you access them? With so many Users, you usually need to apply some filtering and/or pagination, so that you need to execute a query anyway (unless you use collection filtering, which looks like a hack for me). Some developers may tend to apply filtering in memory in such cases, which is obviously not good for performance. Note that having such a relationship can encourage this kind of developers to use it without considering performance implications.

• How would you add new Users to the Group? Fortunately, Hibernate looks at the owning side of relationship when persisting it, so you can only set User.group. However, if you want to keep objects in memory consistent, you also need to add User to Group.users. But it would make Hibernate to fetch all elements of Group.users from the database!

So, I can't agree with the recommendation from the Best Practices. You need to design bidirectional relationships carefully, considering use cases (do you need navigational access in both directions?) and possible performance implications.

See also:

• Deterring “ToMany” Relationships in JPA models
• Hibernate mapped collections performance problems

I read all the answers here, and it took a while to figure out what was going on. The following is based on the answer by Moe Sisko and some related research

If your SQL query does not return any data there is not a field with a null value so neither ISNULL nor COALESCE will work as you want them to. By using a sub query, the top level query gets a field with a null value, and both ISNULL and COALESCE will work as you want/expect them to.

My query

select isnull(
 (select ASSIGNMENTM1.NAME
 from dbo.ASSIGNMENTM1
 where ASSIGNMENTM1.NAME = ?)
, 'Nothing Found') as 'ASSIGNMENTM1.NAME'

My query with comments

select isnull(
--sub query either returns a value or returns nothing (no value)
 (select ASSIGNMENTM1.NAME
 from dbo.ASSIGNMENTM1
 where ASSIGNMENTM1.NAME = ?)
 --If there is a value it is displayed 
 --If no value, it is perceived as a field with a null value, 
 --so the isnull function can give the desired results
, 'Nothing Found') as 'ASSIGNMENTM1.NAME'

First of all, the easiest way to run things at startup is to add them to the file /etc/rc.local.

Another simple way is to use @reboot in your crontab. Read the cron manpage for details.

However, if you want to do things properly, in addition to adding a script to /etc/init.d you need to tell ubuntu when the script should be run and with what parameters. This is done with the command update-rc.d which creates a symlink from some of the /etc/rc* directories to your script. So, you'd need to do something like:

update-rc.d yourscriptname start 2

However, real init scripts should be able to handle a variety of command line options and otherwise integrate to the startup process. The file /etc/init.d/README has some details and further pointers.

I think you need to define an object and then push in array

var obj = {};
obj[name] = val;
ary.push(obj);

Segmentation is more hierarchal and "pretty" but can be limiting.

For example, if you have a url with three segments, each one passing different parameters to search for a car via make, model and color:

www.example.com/search/honda/civic/blue

This is a very pretty url and more easily remembered by the end user, but now your kind of stuck with this structure. Say you want to make it so that in the search the user could search for ALL blue cars, or ALL Honda Civics? A query parameter solves this because it give a key value pair. So you could pass:

www.example.com/search?color=blue
www.example.com/search?make=civic

Now you have a way to reference the value via it's key - either "color" or "make" in your query code.

You could get around this by possibly using more segments to create a kind of key value structure like:

www.example.com/search/make/honda/model/civic/color/blue

Hope that makes sense..

I use them sparingly, but they can be pretty convenient:

def log(msg):
   log.logfile.write(msg)

Now I can use log throughout my module, and redirect output simply by setting log.logfile. There are lots and lots of other ways to accomplish that, but this one's lightweight and dirt simple. And while it smelled funny the first time I did it, I've come to believe that it smells better than having a global logfile variable.

Edit: I have just explained logic to pair here. If anybody want to go with the complete code then see my another answer. I have answered here for logic only but I was not able to explain properly, So I have added another answer in the same thread.

Try this to do pairing:

If you are able to search the devices then this would be your next step

ArrayList<BluetoothDevice> arrayListBluetoothDevices = NEW ArrayList<BluetoothDevice>;

I am assuming that you have the list of Bluetooth devices added in the arrayListBluetoothDevices:

BluetoothDevice bdDevice;
bdDevice = arrayListBluetoothDevices.get(PASS_THE_POSITION_TO_GET_THE_BLUETOOTH_DEVICE);

Boolean isBonded = false;
try {
isBonded = createBond(bdDevice);
if(isBonded)
{
    Log.i("Log","Paired");
}
} catch (Exception e) 
{
    e.printStackTrace(); 
}

The createBond() method:

public boolean createBond(BluetoothDevice btDevice)  
    throws Exception  
    { 
        Class class1 = Class.forName("android.bluetooth.BluetoothDevice");
        Method createBondMethod = class1.getMethod("createBond");  
        Boolean returnValue = (Boolean) createBondMethod.invoke(btDevice);  
        return returnValue.booleanValue();  
    }  

Add this line into your Receiver in the ACTION_FOUND

if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
                    mNewDevicesArrayAdapter.add(device.getName() + "\n" + device.getAddress());
                    arrayListBluetoothDevices.add(device);
                }

Bootstrap V3:

Once i was searching for laravel features then i got to know this amazing form validation. Later on, i amended glyphicon icon features. Now, it looks great.

<div class="col-md-12">
<div class="form-group has-error has-feedback">
    <input id="enter email" name="email" type="text" placeholder="Enter email" class="form-control ">
    <span class="glyphicon glyphicon-remove form-control-feedback"></span>       
    <span class="help-block"><p>The Email field is required.</p></span>                                        
</div>
</div>
<div class="clearfix"></div>

<div class="col-md-6">
<div class="form-group has-error has-feedback">
    <input id="account_holder_name" name="name" type="text" placeholder="Name" class="form-control ">
    <span class="glyphicon glyphicon-remove form-control-feedback"></span>                                            
    <span class="help-block"><p>The Name field is required.</p></span>                                        
</div>
</div>
<div class="col-md-6">
<div class="form-group has-error has-feedback">
 <input id="check_np" name="check_no" type="text" placeholder="Check no" class="form-control ">
 <span class="glyphicon glyphicon-remove form-control-feedback"></span>
<span class="help-block"><p>The Check No. field is required.</p></span>                                       
</div>
</div>

This is what it looks like:

Once i completed it i thought i should implement it in Codeigniter as well. So here is the Codeigniter-3 validation with Bootstrap:

Controller

function addData()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('email','Email','trim|required|valid_email|max_length[128]');
if($this->form_validation->run() == FALSE)
{
//validation fails. Load your view.
$this->loadViews('Load your view','pass your data to view if any');
}
else
{  
 //validation pass. Your code here.
}
}

View

<div class="col-md-12">
<?php 
 $email_error = (form_error('email') ? 'has-error has-feedback' : '');
 if(!empty($email_error)){
 $emailData = '<span class="help-block">'.form_error('email').'</span>';
 $emailClass = $email_error;
 $emailIcon = '<span class="glyphicon glyphicon-remove form-control-feedback"></span>';
}
else{
    $emailClass = $emailIcon = $emailData = '';
 } 
 ?>
<div class="form-group <?= $emailClass ?>">
<input id="enter email" name="email" type="text" placeholder="Enter email" class="form-control ">
<?= $emailIcon ?>
<?= $emailData ?>
</div>
</div>

Output:

I think you can find your answer here : Is an anchor tag without the href attribute safe?

Also if you want to no link operation with href , you can use it like :

<a href="javascript:void(0);">something</a>

import pandas as pd
header=['a','b','v']
df=pd.DataFrame(columns=header)
for i in range(len(doc_list)):
  d_id=(test_data.filenames[i]).split('\\')
  doc_id.append(d_id[len(d_id)-1])
  df['a']=doc_id
print(df.head())
df[column_names_to_be_updated]=np.asanyarray(data)
print(df.head())
df.to_csv('output.csv')

Using pandas dataframe,we can write to csv. First create a dataframe as per the your needs for storing in csv. Then create csv of the dataframe using pd.DataFrame.to_csv() API.

Read the documentation.

http://www.postgresql.org/docs/9.1/static/functions-datetime.html

I used a query like that:

WHERE
(
    date_trunc('day',table1.date_eval) = '2015-02-09'
)

or

WHERE(date_trunc('day',table1.date_eval) >='2015-02-09'AND date_trunc('day',table1.date_eval) <'2015-02-09')    

Juanitos Ingenier.

It took me hours to solve it. Given that someone is using custom scripts to sign and pack while others are using xcode itself, there's only one way to check what ended in your app. Dump you entitlements with

codesign --display --entitlements :- path/to/MyApp.app

and check aps-environment and application-identifier.

Another fast and easy way to semi-automate these steps is to:

1. take the JSON you want to parse and paste it here: https://app.quicktype.io/ . Change language to C# in the drop down.
2. Update the name in the top left to your class name, it defaults to "Welcome".
3. In visual studio go to Website -> Manage Packages and use NuGet to add Json.Net from Newtonsoft.

4. app.quicktype.io generated serialize methods based on Newtonsoft. Alternatively, you can now use code like:

   WebClient client = new WebClient();

   string myJSON = client.DownloadString("https://URL_FOR_JSON.com/JSON_STUFF");

   var myClass = Newtonsoft.Json.JsonConvert.DeserializeObject(myJSON);

I was also interested in this and I've compared all the suggested answers with perfplot. (Disclaimer: I'm the author of perfplot.)

If you know that the array you're looking through is already sorted, then

numpy.searchsorted(a, alpha)

is for you. It's O(log(n)) operation, i.e., the speed hardly depends on the size of the array. You can't get faster than that.

If you don't know anything about your array, you're not going wrong with

numpy.argmax(a > alpha)

Already sorted:

Unsorted:

Code to reproduce the plot:

import numpy
import perfplot


alpha = 0.5
numpy.random.seed(0)


def argmax(data):
    return numpy.argmax(data > alpha)


def where(data):
    return numpy.where(data > alpha)[0][0]


def nonzero(data):
    return numpy.nonzero(data > alpha)[0][0]


def searchsorted(data):
    return numpy.searchsorted(data, alpha)


perfplot.save(
    "out.png",
    # setup=numpy.random.rand,
    setup=lambda n: numpy.sort(numpy.random.rand(n)),
    kernels=[argmax, where, nonzero, searchsorted],
    n_range=[2 ** k for k in range(2, 23)],
    xlabel="len(array)",
)

Just want to point out

Apart from MaxRecivedMessageSize, there are also attributes under ReaderQuotas, you might hit number of items limit instead of size limit. MSDN link is here

Strings are immutable, so you need to say

sInputString = sInputString("\"","");

not just the right side of the =

Checkout TickTick.

It's a true Bash JSON parser.

#!/bin/bash
. /path/to/ticktick.sh

# File
DATA=`cat data.json`
# cURL
#DATA=`curl http://foobar3000.com/echo/request.json`

tickParse "$DATA"

echo ``pathname``
echo ``headers["user-agent"]``

I think I may have a better solution for having a fully responsive iframe (a vimeo video in my case) embed on your site. Nest the iframe in a div. Give them the following styles:

div {
    width: 100%;
    height: 0;
    padding-bottom: 56%; /* Change this till it fits the dimensions of your video */
    position: relative;
}

div iframe {
    width: 100%;
    height: 100%;
    position: absolute;
    display: block;
    top: 0;
    left: 0;
}

Just did it now for a client, and it seems to be working: http://themilkrunsa.co.za/

For my case gulp-ignore was perfect. As option you may pass a function there:

function condition(file) {
 // do whatever with file.path
 // return boolean true if needed to exclude file 
}

And the task would look like this:

var gulpIgnore = require('gulp-ignore');

gulp.task('task', function() {
  gulp.src('./**/*.js')
    .pipe(gulpIgnore.exclude(condition))
    .pipe(gulp.dest('./dist/'));
});

The "trunk", "branches", and "tags" directories are conventions in Subversion. Subversion does not require you to have these directories nor assign special meaning to them. However, this convention is very common and, unless you have a really good reason, you should follow the convention. The book links that other readers have given describe the convention and how to use it.