dex2jar helps to decompile your apk but not 100%. You will have some problems with .smali files. Dex2jar cannot convert it to java. I know one application that can decompile your apk source files and no problems with .smali files. Here is a link http://www.hensence.com/en/smali2java/

I had exactly the same error. My network is an internal one of a company. The proxy has been disabled from the IT team so for that we do not have to enable any proxy settings. I have commented the proxy setting in settings.xml file from the below mentioned locations C:\Users\vijay.singh.m2\settings.xml This fixed the same issue for me

Run this program from commandline:

// File: Main.java
public class Main {

    public static void main(String[] args) {
       System.out.println(System.getProperty("java.home"));
    }

}


$ javac Main.java
$ java Main

I know this question is resolved but, for the benefit of anyone else reading it; if you have all of the types involved as strings, you could do this as a one liner:

IYourInterface o = (Activator.CreateInstance(Type.GetType("Namespace.TaskA`1[OtherNamespace.TypeParam]") as IYourInterface);

Whenever I've done this kind of thing, I've had an interface which I wanted subsequent code to utilise, so I've casted the created instance to an interface.

Logback natively implements the SLF4J API. This means that if you are using logback, you are actually using the SLF4J API. You could theoretically use the internals of the logback API directly for logging, but that is highly discouraged. All logback documentation and examples on loggers are written in terms of the SLF4J API.

So by using logback, you'd be actually using SLF4J and if for any reason you wanted to switch back to log4j, you could do so within minutes by simply dropping slf4j-log4j12.jar onto your class path.

When migrating from logback to log4j, logback specific parts, specifically those contained in logback.xml configuration file would still need to be migrated to its log4j equivalent, i.e. log4j.properties. When migrating in the other direction, log4j configuration, i.e. log4j.properties, would need to be converted to its logback equivalent. There is an on-line tool for that. The amount of work involved in migrating configuration files is much less than the work required to migrate logger calls disseminated throughout all your software's source code and its dependencies.

use np.split(..., axis=1):

Demo:

In [255]: df = pd.DataFrame(np.random.rand(5, 6), columns=list('abcdef'))

In [256]: df
Out[256]:
          a         b         c         d         e         f
0  0.823638  0.767999  0.460358  0.034578  0.592420  0.776803
1  0.344320  0.754412  0.274944  0.545039  0.031752  0.784564
2  0.238826  0.610893  0.861127  0.189441  0.294646  0.557034
3  0.478562  0.571750  0.116209  0.534039  0.869545  0.855520
4  0.130601  0.678583  0.157052  0.899672  0.093976  0.268974

In [257]: dfs = np.split(df, [4], axis=1)

In [258]: dfs[0]
Out[258]:
          a         b         c         d
0  0.823638  0.767999  0.460358  0.034578
1  0.344320  0.754412  0.274944  0.545039
2  0.238826  0.610893  0.861127  0.189441
3  0.478562  0.571750  0.116209  0.534039
4  0.130601  0.678583  0.157052  0.899672

In [259]: dfs[1]
Out[259]:
          e         f
0  0.592420  0.776803
1  0.031752  0.784564
2  0.294646  0.557034
3  0.869545  0.855520
4  0.093976  0.268974

np.split() is pretty flexible - let's split an original DF into 3 DFs at columns with indexes [2,3]:

In [260]: dfs = np.split(df, [2,3], axis=1)

In [261]: dfs[0]
Out[261]:
          a         b
0  0.823638  0.767999
1  0.344320  0.754412
2  0.238826  0.610893
3  0.478562  0.571750
4  0.130601  0.678583

In [262]: dfs[1]
Out[262]:
          c
0  0.460358
1  0.274944
2  0.861127
3  0.116209
4  0.157052

In [263]: dfs[2]
Out[263]:
          d         e         f
0  0.034578  0.592420  0.776803
1  0.545039  0.031752  0.784564
2  0.189441  0.294646  0.557034
3  0.534039  0.869545  0.855520
4  0.899672  0.093976  0.268974

Try this:

using System.Data.Linq;
var result = from i in list
             where i.age > 45
             select i;

Using lambda expression please use this Statement:

var result = list.where(i => i.age > 45);

Use nnz instead of sum. No need for the double call to collapse matrices to vectors and it is likely faster than sum.

nnz(your_matrix == 5)

Doc

Perhaps you were looking at the space complexity? That is O(n). The other complexities are as expected on the hash table entry. The search complexity approaches O(1) as the number of buckets increases. If at the worst case you have only one bucket in the hash table, then the search complexity is O(n).

Edit in response to comment I don't think it is correct to say O(1) is the average case. It really is (as the wikipedia page says) O(1+n/k) where K is the hash table size. If K is large enough, then the result is effectively O(1). But suppose K is 10 and N is 100. In that case each bucket will have on average 10 entries, so the search time is definitely not O(1); it is a linear search through up to 10 entries.

Since Java 7 this is very easy and intuitive to do.

List<String> fileContent = new ArrayList<>(Files.readAllLines(FILE_PATH, StandardCharsets.UTF_8));

for (int i = 0; i < fileContent.size(); i++) {
    if (fileContent.get(i).equals("old line")) {
        fileContent.set(i, "new line");
        break;
    }
}

Files.write(FILE_PATH, fileContent, StandardCharsets.UTF_8);

Basically you read the whole file to a List, edit the list and finally write the list back to file.

FILE_PATH represents the Path of the file.

One simple example for return SQL table as formatted JSON and fix error as he had @Whitecat

I get the error datetime.datetime(1941, 10, 31, 0, 0) is not JSON serializable

In that example you should use JSONEncoder.

import json
import pymssql

# subclass JSONEncoder
class DateTimeEncoder(JSONEncoder):
        #Override the default method
        def default(self, obj):
            if isinstance(obj, (datetime.date, datetime.datetime)):
                return obj.isoformat()

def mssql_connection():
    try:
        return pymssql.connect(server="IP.COM", user="USERNAME", password="PASSWORD", database="DATABASE")
    except Exception:
        print("\nERROR: Unable to connect to the server.")
        exit(-1)

def query_db(query):
    cur = mssql_connection().cursor()
    cur.execute(query)
    r = [dict((cur.description[i][0], value) for i, value in enumerate(row)) for row in cur.fetchall()]
    cur.connection.close()
    return r

def write_json(query_path):
    # read sql from file
    with open("../sql/my_sql.txt", 'r') as f:
        sql = f.read().replace('\n', ' ')
    # creating and writing to a json file and Encode DateTime Object into JSON using custom JSONEncoder
    with open("../output/my_json.json", 'w', encoding='utf-8') as f:
        json.dump(query_db(sql), f, ensure_ascii=False, indent=4, cls=DateTimeEncoder) 

if __name__ == "__main__":
    write_json()

# You get formatted my_json.json, for example:
[
   {
      "divroad":"N",
      "featcat":null,
      "countyfp":"001",
      "date":"2020-08-28"
   }
]

The Activity which you want it to be the very first screen if your app is opened, then mention it as LAUNCHER in the intent category and remaining activities mention Default in intent category.

For example :- There is 2 activity A and B
The activity A is LAUNCHER so make it as LAUNCHER in the intent Category and B is child for Activity A so make it as DEFAULT.

<application android:icon="@drawable/icon" android:label="@string/app_name">
    <activity android:name=".ListAllActivity"
              android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".AddNewActivity" android:label="@string/app_name">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.DEFAULT" />
        </intent-filter>
    </activity>
</application>

I'm not sure how stuck you are:

You must have a web server (Windows comes with one called IIS, but it may not be installed)

1. Make sure you actually have IIS installed! Try typing http://localhost/ in your browser and see what happens. If nothing happens it means that you may not have IIS installed. See Installing IIS
2. Set up IIS How to set up your first IIS Web site
3. You may even need to Install the .NET Framework (or your server will only serve static html pages, and not asp.net pages)

Installing your application

Once you have done that, you can more or less just copy your application to c:\wwwroot\inetpub\. Read Installing ASP.NET Applications (IIS 6.0) for more information

Accessing the web site from another machine

In theory, once you have a web server running, and the application installed, you only need the IP address of your web server to access the application.

To find your IP address try: Start -> Run -> type cmd (hit ENTER) -> type ipconfig (hit ENTER)

Once

• you have the IP address AND
• IIS running AND
• the application is installed

you can access your website from another machine in your LAN by just typing in the IP Address of you web server and the correct path to your application.

If you put your application in a directory called NewApp, you will need to type something like http://your_ip_address/NewApp/default.aspx

Turn off your firewall

If you do have a firewall turn it off while you try connecting for the first time, you can sort that out later.

I can think of doing it in two ways:

1.

Storing the file in file system in any directory (say dir1) and renaming it which ensures that the name is unique for every file (may be a timestamp) (say xyz123.jpg), and then storing this name in some DataBase. Then while generating the JSON you pull this filename and generate a complete URL (which will be http://example.com/dir1/xyz123.png )and insert it in the JSON.

2.

Base 64 Encoding, It's basically a way of encoding arbitrary binary data in ASCII text. It takes 4 characters per 3 bytes of data, plus potentially a bit of padding at the end. Essentially each 6 bits of the input is encoded in a 64-character alphabet. The "standard" alphabet uses A-Z, a-z, 0-9 and + and /, with = as a padding character. There are URL-safe variants. So this approach will allow you to put your image directly in the MongoDB, while storing it Encode the image and decode while fetching it, it has some of its own drawbacks:

• base64 encoding makes file sizes roughly 33% larger than their original binary representations, which means more data down the wire (this might be exceptionally painful on mobile networks)
• data URIs aren’t supported on IE6 or IE7.
• base64 encoded data may possibly take longer to process than binary data.

Source

Converting Image to DATA URI

A.) Canvas

Load the image into an Image-Object, paint it to a canvas and convert the canvas back to a dataURL.

function convertToDataURLviaCanvas(url, callback, outputFormat){
    var img = new Image();
    img.crossOrigin = 'Anonymous';
    img.onload = function(){
        var canvas = document.createElement('CANVAS');
        var ctx = canvas.getContext('2d');
        var dataURL;
        canvas.height = this.height;
        canvas.width = this.width;
        ctx.drawImage(this, 0, 0);
        dataURL = canvas.toDataURL(outputFormat);
        callback(dataURL);
        canvas = null; 
    };
    img.src = url;
}

Usage

convertToDataURLviaCanvas('http://bit.ly/18g0VNp', function(base64Img){
    // Base64DataURL
});

Supported input formats image/png, image/jpeg, image/jpg, image/gif, image/bmp, image/tiff, image/x-icon, image/svg+xml, image/webp, image/xxx

B.) FileReader

Load the image as blob via XMLHttpRequest and use the FileReader API to convert it to a data URL.

function convertFileToBase64viaFileReader(url, callback){
    var xhr = new XMLHttpRequest();
    xhr.responseType = 'blob';
    xhr.onload = function() {
      var reader  = new FileReader();
      reader.onloadend = function () {
          callback(reader.result);
      }
      reader.readAsDataURL(xhr.response);
    };
    xhr.open('GET', url);
    xhr.send();
}

This approach

• lacks in browser support
• has better compression
• works for other file types as well.

Usage

convertFileToBase64viaFileReader('http://bit.ly/18g0VNp', function(base64Img){
    // Base64DataURL
});

Source

Another possibility is to use regular expressions which is what Perl is famous for:

if ($mystring =~ /s1\.domain\.com/) {
   print qq("$mystring" contains "s1.domain.com"\n);
}

The backslashes are needed because a . can match any character. You can get around this by using the \Q and \E operators.

my $substring = "s1.domain.com";
    if ($mystring =~ /\Q$substring\E/) {
   print qq("$mystring" contains "$substring"\n);
}

Or, you can do as eugene y stated and use the index function. Just a word of warning: Index returns a -1 when it can't find a match instead of an undef or 0.

Thus, this is an error:

my $substring = "s1.domain.com";
if (not index($mystring, $substr)) {
    print qq("$mystring" doesn't contains "$substring"\n";
} 

This will be wrong if s1.domain.com is at the beginning of your string. I've personally been burned on this more than once.

Oracle DateDiff is from a different product, probably mysql (which is now owned by Oracle).

The difference between two dates (in oracle's usual database product) is in days (which can have fractional parts). Factor by 24 to get hours, 24*60 to get minutes, 24*60*60 to get seconds (that's as small as dates go). The math is 100% accurate for dates within a couple of hundred years or so. E.g. to get the date one second before midnight of today, you could say

select trunc(sysdate) - 1/24/60/60 from dual;

That means "the time right now", truncated to be just the date (i.e. the midnight that occurred this morning). Then it subtracts a number which is the fraction of 1 day that measures one second. That gives you the date from the previous day with the time component of 23:59:59.

You should be able to start your workspace after deleting the following file: .metadata.plugins\org.eclipse.e4.workbench\workbench.xmi as shown here :

Standard SQL disallows references to column aliases in a WHERE clause. This restriction is imposed because when the WHERE clause is evaluated, the column value may not yet have been determined. For example, the following query is illegal:

SELECT id, COUNT(*) AS cnt FROM tbl_name WHERE cnt > 0 GROUP BY id;

I have tested it. It works fine.

.row.vdivide [class*='col-']:not(:last-child):after {
      background: #e0e0e0;
      width: 1px;
      content: "";
      display:block;
      position: absolute;
      top:0;
      bottom: 0;
      right: 0;
      min-height: 70px;
    }

    <div class="container">
      <div class="row vdivide">
        <div class="col-sm-3 text-center"><h1>One</h1></div>
        <div class="col-sm-3 text-center"><h1>Two</h1></div>
        <div class="col-sm-3 text-center"><h1>Three</h1></div>
        <div class="col-sm-3 text-center"><h1>Four</h1></div>
      </div>
    </div>

def findReplace(find, replace):

    import os 

    src = os.path.join(os.getcwd(), os.pardir) 

    for path, dirs, files in os.walk(os.path.abspath(src)):

        for name in files: 

            if name.endswith('.py'): 

                filepath = os.path.join(path, name)

                with open(filepath) as f: 

                    s = f.read()

                s = s.replace(find, replace) 

                with open(filepath, "w") as f:

                    f.write(s) 

I was able to install tensorflow on windows following the instructions on tensorflow.org, using the conda method of installation, as given here: https://www.tensorflow.org/get_started/os_setup#anaconda_installation. There are small differences on how to activate an 'environment' on windows, you call 'activate' directly without the 'source'. So, for me after installing anaconda the steps where:

C:\Users\Dunschm>conda create -n tensorflow python=3.5
C:\Users\Dunschm>activate tensorflow
(tensorflow) C:\Users\Dunschm>conda install -c conda-forge tensorflow

use window.open("file2.html"); to open on new window,

or use window.location.href = "file2.html" to open on same window.

@Bangonkali provide the right answer, but this syntax seems more readable and just nicer to me:

eventChange($event: KeyboardEvent): void {
    (<HTMLInputElement>$event.target).value;
}

Change your maximum size,

label1.MaximumSize = new Size(100, 0);

And set your autosize to true.

label1.AutoSize = true;

That's it!

You can just change the reference of input value, as below

<div>
    <input type="text" placeholder="Search..." #reference>
    <button (click)="reference.value=''">Clear</button>
</div>

SELECT * FROM `table_name` 
ORDER BY `table_name`.`column_name` DESC
LIMIT 1 

Note: You can first preview what your patch will do:

First the stats:

git apply --stat a_file.patch

Then a dry run to detect errors:

git apply --check a_file.patch

Finally, you can use git am to apply your patch as a commit. This also allows you to sign off an applied patch.
This can be useful for later reference.

git am --signoff < a_file.patch 

See an example in this article:

In your git log, you’ll find that the commit messages contain a “Signed-off-by” tag. This tag will be read by Github and others to provide useful info about how the commit ended up in the code.

Explanation by analogy

Imagine that you wrote a letter to your pen pal but that you wrote it in different languages each time.

For example, you might have chosen to write your first letter in Tamil, and the second in German etc.

In order for your friend to translate those letters, your friend would need to:

• (i) identify the language type, and
• (ii) and then translate it accordingly. But identifying a language is not that easy - it's going to take a lot of computational energy. It would be much easier if you wrote the language you are sending across on the top of your letter - that would make life a lot easier for your friend.

So then, in order to highlight the language you are writing in, you simple annotate the language (e.g. "French") on the top of your letter.

How would your friend know or be able to read or distinguish between the different language types you are specifying at the top of your letter? That's easy: you agree upon this beforehand.

Tying the analogy back in with HTML

Because there are different types of data formats which need to be sent over the internet, specifying the data type up front would allow the corresponding client to properly interpret and render the data accordingly to the user.

Why do we have different data formats?

Principally because they serve different purposes and have different abilities.

For example, a PDF format is very different from a picture format - which is also different from a sound format - both serve very different purposes and accordingly are written different prior to being sent over the internet.

This is what I use to display images from blob:

echo '<img src="data:image/jpeg;base64,'.base64_encode($image->load()) .'" />';

console.log() calls process.stdout.write with formatted output. See format() in console.js for the implementation.

Currently (v0.10.ish):

Console.prototype.log = function() {
  this._stdout.write(util.format.apply(this, arguments) + '\n');
};

There is no reason to limit MongoDB cache as by default the mongod process will take 1/2 of the memory on the machine and no more. The default storage engine is WiredTiger. "With WiredTiger, MongoDB utilizes both the WiredTiger internal cache and the filesystem cache."

You are probably looking at top and assuming that Mongo is using all the memory on your machine. That is virtual memory. Use free -m:

              total        used        free      shared  buff/cache   available
Mem:           7982        1487        5601           8         893        6204
Swap:             0           0           0

Only when the available metric goes to zero is your computer swapping memory out to disk. In that case your database is too large for your machine. Add another mongodb instance to your cluster.

Use these two commands in the mongod console to get information about how much virtual and physical memory Mongodb is using:

var mem = db.serverStatus().tcmalloc;

mem.tcmalloc.formattedString

------------------------------------------------
MALLOC:      360509952 (  343.8 MiB) Bytes in use by application
MALLOC: +    477704192 (  455.6 MiB) Bytes in page heap freelist
MALLOC: +     33152680 (   31.6 MiB) Bytes in central cache freelist
MALLOC: +      2684032 (    2.6 MiB) Bytes in transfer cache freelist
MALLOC: +      3508952 (    3.3 MiB) Bytes in thread cache freelists
MALLOC: +      6349056 (    6.1 MiB) Bytes in malloc metadata
MALLOC:   ------------
MALLOC: =    883908864 (  843.0 MiB) Actual memory used (physical + swap)
MALLOC: +     33611776 (   32.1 MiB) Bytes released to OS (aka unmapped)
MALLOC:   ------------
MALLOC: =    917520640 (  875.0 MiB) Virtual address space used
MALLOC:
MALLOC:          26695              Spans in use
MALLOC:             22              Thread heaps in use
MALLOC:           4096              Tcmalloc page size

To the latest setup and information if you have installed the Android Studio (i.e. 1.5) and trying to target SDK 4.0 then you may not be able to locate and setup the and AVD Emulator with SDK-vX.XX (with Google API's).

See following steps in order to download the required library and start with that. AVD Emulator setup -setting up Emulator for SDK4.0 with GoogleAPI so Map application can work- In Android Studio

But unfortunately above method did not work well on my side. And was not able to created Emulator with API Level 17 (SDK 4.2). So I followed this post that worked on my side well. The reason seems that the Android Studio Emulator creation window has limited options/features.

Google Play Services in emulator, implementing Google Plus login button etc

With Java 7 or above you could use

ThreadLocalRandom.current().nextInt(int origin, int bound)

Javadoc: ThreadLocalRandom.nextInt

For formatting code in Android Studio on Linux you could instead use Ctrl + Alt + Super + L. You could use this and avoid having to change the system shortcut. (Super key is the Windows icon key besides the Alt key).

The function returns too early. I've added a comment to the code below:

$(document).ready(function(){
    $(document).bind("contextmenu",function(e){
        return false;
        $('.alert').fadeToggle(); // this line never gets called
    });
});

Try swapping the return false; with the next line.

add this styles

animation-iteration-count:infinite;

/**
 * Not applicable to Static Inner Class (nested class)
 */
public static Object getDeclaringTopLevelClassObject(Object object) {
    if (object == null) {
        return null;
    }
    Class cls = object.getClass();
    if (cls == null) {
        return object;
    }
    Class outerCls = cls.getEnclosingClass();
    if (outerCls == null) {
        // this is top-level class
        return object;
    }
    // get outer class object
    Object outerObj = null;
    try {
        Field[] fields = cls.getDeclaredFields();
        for (Field field : fields) {
            if (field != null && field.getType() == outerCls
                    && field.getName() != null && field.getName().startsWith("this$")) {
                field.setAccessible(true);
                outerObj = field.get(object);
                break;
            }
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return getDeclaringTopLevelClassObject(outerObj);
}

Of course, the name of the implicit reference is unreliable, so you shouldn't use reflection for the job.

There is no create or replace table in Oracle.

You must:

DROP TABLE foo;
CREATE TABLE foo (....);

MessageBox::Show uses function from user32.dll, and its style is dependent on Windows, so you cannot change it like that, you have to create your own form

This is the safest and most concise way I see as of POI 3.1.7 up to POI 4:

boolean isBlankCell = CellType.BLANK == cell.getCellTypeEnum();
boolean isEmptyStringCell = CellType.STRING == cell.getCellTypeEnum() && cell.getStringCellValue().trim().isEmpty(); 

if (isBlankCell || isEmptyStringCell) {
    ...

As of POI 4 getCellTypeEnum() will be deprecated if favor of getCellType() but the return type should stay the same.

Just keep as android:windowSoftInputMode="adjustResize". Because it is given to keep only one out of "adjustResize" and "adjustPan"(The window adjustment mode is specified with either adjustResize or adjustPan. It is highly recommended that you always specify one or the other). You can find it out here: http://developer.android.com/resources/articles/on-screen-inputs.html

It works perfectly for me.

This is the already proposed and accepted solution as a method on the Array prototype:

Array.prototype.sortNumeric = function () {
    return this.sort((a, b) => a - b);
};
Array.prototype.sortNumericDesc = function () {
    return this.sort((a, b) => b - a);
};

show variables

Show variables like "`secure_file_priv`";

Note: keep your csv file in location given by the above command.

create table assessments (course_code varchar(5),batch_code varchar(7),id_assessment int, assessment_type varchar(10), date int , weight int);

Note: here the 'date' column has some blank values in the csv file.

LOAD DATA INFILE 'C:/ProgramData/MySQL/MySQL Server 8.0/Uploads/assessments.csv' 
INTO TABLE assessments
FIELDS TERMINATED BY ',' 
OPTIONALLY ENCLOSED BY '' 
LINES TERMINATED BY '\n' 
IGNORE 1 ROWS 
(course_code,batch_code,id_assessment,assessment_type,@date,weight)
SET date = IF(@date = '', NULL, @date);

Personally, I'd append the element to the form instead of hacking the serialized data, e.g.

moredata = 'your custom data here';

// do what you like with the input
$input = $('<input type="text" name="moredata"/>').val(morevalue);

// append to the form
$('#myForm').append($input);

// then..
data: $('#myForm').serialize()

That way, you don't have to worry about ? or &

This is accomplished in web.config for your webservice. Set the bindingBehavior to <webHttp> and you will see the clean JSON. The extra "[d]" is set by the default behavior which you need to overwrite.

See in addition this blogpost: http://blog.clauskonrad.net/2010/11/how-to-expose-json-endpoint-from-wcf.html

I just solved this problem within my project. Turned out my connection string had a typo and differed from the valid database auth. credentials. Dumb mistake on my part, hopefully somebody else saves time by reading this.

Permitting a nested object :

params.permit( {:school => [:id , :name]}, 
               {:student => [:id, 
                            :name, 
                            :address, 
                            :city]},
                {:records => [:marks, :subject]})

That will open a new window, not tab (with JavaScript, but quite laconically):

<a href="print.html"  
    onclick="window.open('print.html', 
                         'newwindow', 
                         'width=300,height=250'); 
              return false;"
 >Print</a>

Customize the filter, and determine what kind of abnormality, there should be a better method than this

public class ExceptionFilter extends OncePerRequestFilter {

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws IOException, ServletException {
    String msg = "";
    try {
        filterChain.doFilter(request, response);
    } catch (Exception e) {
        if (e instanceof JwtException) {
            msg = e.getMessage();
        }
        response.setCharacterEncoding("UTF-8");
        response.setContentType(MediaType.APPLICATION_JSON.getType());
        response.getWriter().write(JSON.toJSONString(Resp.error(msg)));
        return;
    }
}

}

If using MS Visual C++ 10.0, you can do this with standard library facilities:

Concurrency::wait(milliseconds);

you will need:

#include <concrt.h>

select name, price
  from (
    select name, price, 
    row_number() over (order by price) r
      from items
  )
where r between 1 and 5; 

You can also do this without using groupby or loc. By simply including the condition in code. Let the name of dataframe be df. Then you can try :

df[df['a']==1]['b'].sum()

or you can also try :

sum(df[df['a']==1]['b'])

Another way could be to use the numpy library of python :

import numpy as np
print(np.where(df['a']==1, df['b'],0).sum())

In general, EqualityComparer<T>.Default.Equals should do the job with anything that implements IEquatable<T>, or that has a sensible Equals implementation.

If, however, == and Equals are implemented differently for some reason, then my work on generic operators should be useful; it supports the operator versions of (among others):

• Equal(T value1, T value2)
• NotEqual(T value1, T value2)
• GreaterThan(T value1, T value2)
• LessThan(T value1, T value2)
• GreaterThanOrEqual(T value1, T value2)
• LessThanOrEqual(T value1, T value2)

```{r results='hide', message=FALSE, warning=FALSE}
library(RJSONIO)
library(AnotherPackage)
```

see Chunk Options in the Knitr docs

Remove star from COPY, with this Dockerfile:

FROM ubuntu
COPY files/ /files/
RUN ls -la /files/*

Structure is there:

$ docker build .
Sending build context to Docker daemon 5.632 kB
Sending build context to Docker daemon 
Step 0 : FROM ubuntu
 ---> d0955f21bf24
Step 1 : COPY files/ /files/
 ---> 5cc4ae8708a6
Removing intermediate container c6f7f7ec8ccf
Step 2 : RUN ls -la /files/*
 ---> Running in 08ab9a1e042f
/files/folder1:
total 8
drwxr-xr-x 2 root root 4096 May 13 16:04 .
drwxr-xr-x 4 root root 4096 May 13 16:05 ..
-rw-r--r-- 1 root root    0 May 13 16:04 file1
-rw-r--r-- 1 root root    0 May 13 16:04 file2

/files/folder2:
total 8
drwxr-xr-x 2 root root 4096 May 13 16:04 .
drwxr-xr-x 4 root root 4096 May 13 16:05 ..
-rw-r--r-- 1 root root    0 May 13 16:04 file1
-rw-r--r-- 1 root root    0 May 13 16:04 file2
 ---> 03ff0a5d0e4b
Removing intermediate container 08ab9a1e042f
Successfully built 03ff0a5d0e4b

Override method authenticationManagerBean in WebSecurityConfigurerAdapter to expose the AuthenticationManager built using configure(AuthenticationManagerBuilder) as a Spring bean:

For example:

   @Bean(name = BeanIds.AUTHENTICATION_MANAGER)
   @Override
   public AuthenticationManager authenticationManagerBean() throws Exception {
       return super.authenticationManagerBean();
   }

The best you are going to be able to do for now is create an array with an initial count repeating nil:

var sprites = [SKSpriteNode?](count: 64, repeatedValue: nil)

You can then fill in whatever values you want.

In Swift 3.0 :

var sprites = [SKSpriteNode?](repeating: nil, count: 64)

You were setting BCC but then overwriting the variable with the FROM

$to = "[email protected]";
     $subject .= "".$emailSubject."";
 $headers .= "Bcc: ".$emailList."\r\n";
 $headers .= "From: [email protected]\r\n" .
     "X-Mailer: php";
     $headers .= "MIME-Version: 1.0\r\n";
     $headers .= "Content-Type: text/html; charset=ISO-8859-1\r\n";
 $message = '<html><body>';
 $message .= 'THE MESSAGE FROM THE FORM';

     if (mail($to, $subject, $message, $headers)) {
     $sent = "Your email was sent!";
     } else {
      $sent = ("Error sending email.");
     }

Yes, if bar is not None is more explicit, and thus better, assuming it is indeed what you want. That's not always the case, there are subtle differences: if not bar: will execute if bar is any kind of zero or empty container, or False. Many people do use not bar where they really do mean bar is not None.

On my machine:

C:\Program Files (x86)\OpenERP 6.1-20121026-233219\PostgreSQL\data

use the val() method:

$(document).ready(function () {
    var j = $("textarea");
    if (j.val().length > 0) {
        alert(j.val());
    }
});

Here's my take on Carpetsmoker's answer (which I liked due to it being dynamic), cleaned up and updated for select2 v4:

$('#selectField').on('select2:open', function (e) {
  var container = $(this).select('select2-container');
  var position = container.offset().top;
  var availableHeight = $(window).height() - position - container.outerHeight();
  var bottomPadding = 50; // Set as needed
  $('ul.select2-results__options').css('max-height', (availableHeight - bottomPadding) + 'px');
});

You can't get the number of rows returned in a ResultSet without iterating through it. And why would you return a ResultSet without iterating through it? There'd be no point in executing the query in the first place.

A better solution would be to separate persistence from view. Create a separate Data Access Object that handles all the database queries for you. Let it get the values to be displayed in the JTable, load them into a data structure, and then return it to the UI for display. The UI will have all the information it needs then.

Try to use appendChild method:

select.appendChild(option);

This method work for me:

DELIMITER $$
DROP PROCEDURE IF EXISTS db.test $$
CREATE PROCEDURE db.test(IN id INT(12),IN NAME VARCHAR(255))
 BEGIN
 INSERT INTO USER VALUES(id,NAME);
 END$$
DELIMITER ;

This is one solution. If you want to make it more generic, you can use the StringUtils library.

String value = "{first_name = naresh,last_name = kumar,gender = male}";
value = value.substring(1, value.length()-1);           //remove curly brackets
String[] keyValuePairs = value.split(",");              //split the string to creat key-value pairs
Map<String,String> map = new HashMap<>();               

for(String pair : keyValuePairs)                        //iterate over the pairs
{
    String[] entry = pair.split("=");                   //split the pairs to get key and value 
    map.put(entry[0].trim(), entry[1].trim());          //add them to the hashmap and trim whitespaces
}

For example you can switch

 value = value.substring(1, value.length()-1);

to

 value = StringUtils.substringBetween(value, "{", "}");

if you are using StringUtils which is contained in apache.commons.lang package.

Read the input continuously within the loop so that the variable line is assigned a value other than the initial value

while ((line = br.readLine()) !=null) {
  ...
}

Aside: This problem has already been solved using CSV libraries such as OpenCSV. Here are examples for reading and writing CSV files

The simplest, and best long-term solution

Go to the main menu on top of Eclipse and locate Window next to Run and expand it.

 Window->Reset Perspective... to restore all views to their defaults

It will reset the default setting.

There is timeline.sty floating around.

The syntax is simpler than using tikz:

%%% In LaTeX:
%%% \begin{timeline}{length}(start,stop)
%%%   .
%%%   .
%%%   .
%%% \end{timeline}
%%%
%%% in plain TeX
%%% \timeline{length}(start,stop)
%%%   .
%%%   .
%%%   .
%%% \endtimeline
%%% in between the two, we may have:
%%% \item{date}{description}
%%% \item[sortkey]{date}{description}
%%% \optrule
%%%
%%% the options to timeline are:
%%%      length The amount of vertical space that the timeline should
%%%                use.
%%%      (start,stop) indicate the range of the timeline. All dates or
%%%                sortkeys should lie in the range [start,stop]
%%%
%%% \item without the sort key expects date to be a number (such as a
%%%      year).
%%% \item with the sort key expects the sort key to be a number; date
%%%      can be anything. This can be used for log scale time lines
%%%      or dates that include months or days.
%%% putting \optrule inside of the timeline environment will cause a
%%%      vertical rule to be drawn down the center of the timeline.

I've used python's datetime.data.toordinal to convert dates to 'sort keys' in the context of the package.

remove {{}} braces around foo.bar because angular expressions cannot be used in angular directives.

For More: https://docs.angularjs.org/api/ng/directive/ngShow

example

  <body ng-app="changeExample">
    <div ng-controller="ExampleController">
    <p ng-show="foo.bar">I could be shown, or I could be hidden</p>
    <p ng-hide="foo.bar">I could be shown, or I could be hidden</p>
    </div>
    </body>

<script>
     angular.module('changeExample', [])
        .controller('ExampleController', ['$scope', function($scope) {
          $scope.foo ={};
          $scope.foo.bar = true;
        }]);
</script>

At least at STS (SpringSource Tool Suite) groups are numbered starting form 0, so replace string will be

replace: ((TypeName)$0)

Since sockstat wasn't natively installed on my machine I hacked up stanwise's answer to use netstat instead..

netstat -nlp | grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\:2000" | awk '{print $7}' | sed -e "s/\/.*//g""

This is generic code for configuration collection :

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

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

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

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

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

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

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

The Config Element is config Here:

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

The config file would look like this:

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

Hope it help !

I had a similar problem. I searched conda.exe and I found it on Scripts folder. So, In Anaconda3 you need to add two variables to PATH. The first is Anaconda_folder_path and the second is Anaconda_folder_path\Scripts

What about creating an additional wrapper class?

package com.naveen.research.sql;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public abstract class PreparedStatementWrapper implements AutoCloseable {

    protected PreparedStatement stat;

    public PreparedStatementWrapper(Connection con, String query, Object ... params) throws SQLException {
        this.stat = con.prepareStatement(query);
        this.prepareStatement(params);
    }

    protected abstract void prepareStatement(Object ... params) throws SQLException;

    public ResultSet executeQuery() throws SQLException {
        return this.stat.executeQuery();
    }

    public int executeUpdate() throws SQLException {
        return this.stat.executeUpdate();
    }

    @Override
    public void close() {
        try {
            this.stat.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

Then in the calling class you can implement prepareStatement method as:

try (Connection con = DriverManager.getConnection(JDBC_URL, prop);
    PreparedStatementWrapper stat = new PreparedStatementWrapper(con, query,
                new Object[] { 123L, "TEST" }) {
            @Override
            protected void prepareStatement(Object... params) throws SQLException {
                stat.setLong(1, Long.class.cast(params[0]));
                stat.setString(2, String.valueOf(params[1]));
            }
        };
        ResultSet rs = stat.executeQuery();) {
    while (rs.next())
        System.out.println(String.format("%s, %s", rs.getString(2), rs.getString(1)));
} catch (SQLException e) {
    e.printStackTrace();
}

Compiling PIL on Windows x64 is apparently a bit of a pain. (Well, compiling anything on Windows is a bit of a pain in my experience. But still.) As well as PIL itself you'll need to build many dependencies. See these notes from the mailing list too.

There's an unofficial precompiled binary for x64 linked from this message, but I haven't tried it myself. Might be worth a go if you don't mind the download being from one of those slightly dodgy file-upload sites. Other than that... well, you could always give up and instead the 32-bit Python binary instead.

Static cast

char c = 10;       // 1 byte
int *p = (int*)&c; // 4 bytes

Since this results in a 4-byte pointer pointing to 1 byte of allocated memory, writing to this pointer will either cause a run-time error or will overwrite some adjacent memory.

*p = 5; // run-time error: stack corruption

In contrast to the C-style cast, the static cast will allow the compiler to check that the pointer and pointee data types are compatible, which allows the programmer to catch this incorrect pointer assignment during compilation.

int *q = static_cast<int*>(&c); // compile-time error

Reinterpret cast

To force the pointer conversion, in the same way as the C-style cast does in the background, the reinterpret cast would be used instead.

int *r = reinterpret_cast<int*>(&c); // forced conversion

This cast handles conversions between certain unrelated types, such as from one pointer type to another incompatible pointer type. It will simply perform a binary copy of the data without altering the underlying bit pattern. Note that the result of such a low-level operation is system-specific and therefore not portable. It should be used with caution if it cannot be avoided altogether.

Dynamic cast

This one is only used to convert object pointers and object references into other pointer or reference types in the inheritance hierarchy. It is the only cast that makes sure that the object pointed to can be converted, by performing a run-time check that the pointer refers to a complete object of the destination type. For this run-time check to be possible the object must be polymorphic. That is, the class must define or inherit at least one virtual function. This is because the compiler will only generate the needed run-time type information for such objects.

Dynamic cast examples

In the example below, a MyChild pointer is converted into a MyBase pointer using a dynamic cast. This derived-to-base conversion succeeds, because the Child object includes a complete Base object.

class MyBase 
{ 
  public:
  virtual void test() {}
};
class MyChild : public MyBase {};



int main()
{
  MyChild *child = new MyChild();
  MyBase  *base = dynamic_cast<MyBase*>(child); // ok
}

The next example attempts to convert a MyBase pointer to a MyChild pointer. Since the Base object does not contain a complete Child object this pointer conversion will fail. To indicate this, the dynamic cast returns a null pointer. This gives a convenient way to check whether or not a conversion has succeeded during run-time.

MyBase  *base = new MyBase();
MyChild *child = dynamic_cast<MyChild*>(base);

 
if (child == 0) 
std::cout << "Null pointer returned";

If a reference is converted instead of a pointer, the dynamic cast will then fail by throwing a bad_cast exception. This needs to be handled using a try-catch statement.

#include <exception>
// …  
try
{ 
  MyChild &child = dynamic_cast<MyChild&>(*base);
}
catch(std::bad_cast &e) 
{ 
  std::cout << e.what(); // bad dynamic_cast
}

Dynamic or static cast

The advantage of using a dynamic cast is that it allows the programmer to check whether or not a conversion has succeeded during run-time. The disadvantage is that there is a performance overhead associated with doing this check. For this reason using a static cast would have been preferable in the first example, because a derived-to-base conversion will never fail.

MyBase *base = static_cast<MyBase*>(child); // ok

However, in the second example the conversion may either succeed or fail. It will fail if the MyBase object contains a MyBase instance and it will succeed if it contains a MyChild instance. In some situations this may not be known until run-time. When this is the case dynamic cast is a better choice than static cast.

// Succeeds for a MyChild object
MyChild *child = dynamic_cast<MyChild*>(base);

If the base-to-derived conversion had been performed using a static cast instead of a dynamic cast the conversion would not have failed. It would have returned a pointer that referred to an incomplete object. Dereferencing such a pointer can lead to run-time errors.

// Allowed, but invalid
MyChild *child = static_cast<MyChild*>(base);
 
// Incomplete MyChild object dereferenced
(*child);

Const cast

This one is primarily used to add or remove the const modifier of a variable.

const int myConst = 5;
int *nonConst = const_cast<int*>(&myConst); // removes const

Although const cast allows the value of a constant to be changed, doing so is still invalid code that may cause a run-time error. This could occur for example if the constant was located in a section of read-only memory.

*nonConst = 10; // potential run-time error

Const cast is instead used mainly when there is a function that takes a non-constant pointer argument, even though it does not modify the pointee.

void print(int *p) 
{
   std::cout << *p;
}

The function can then be passed a constant variable by using a const cast.

print(&myConst); // error: cannot convert 
                 // const int* to int*
 
print(nonConst); // allowed

Source and More Explanations

Yes, Daniel is correct, but to expand upon his answer, your primary app component would need to have a navbar component within it. That way, when you render the primary app (any page under the '/' path), it would also display the navbar. I am guessing that you wouldn't want your login page to display the navbar, so that shouldn't be a nested component, and should instead be by itself. So your routes would end up looking something like this:

<Router>
  <Route path="/" component={App}>
    <Route path="page1" component={Page1} />
    <Route path="page2" component={Page2} />
  </Route>
  <Route path="/login" component={Login} />
</Router>

And the other components would look something like this:

var NavBar = React.createClass({
  render() {
    return (
      <div>
        <ul>
          <a onClick={() => history.push('page1') }>Page 1</a>
          <a onClick={() => history.push('page2') }>Page 2</a>
        </ul>
      </div>
    )
  }
});

var App = React.createClass({
  render() {
    return (
      <div>
        <NavBar />
        <div>Other Content</div>
        {this.props.children}
      </div>
    )
  }
});

Summary:

• @HostBinding: This decorator binds a class property to a property of the host element.
• @HostListener: This decorator binds a class method to an event of the host element.

Example:

import { Component, HostListener, HostBinding } from '@angular/core';

@Component({
  selector: 'app-root',
  template: `<p>This is nice text<p>`,
})
export class AppComponent  {

  @HostBinding('style.color') color; 

  @HostListener('click')
  onclick() {
    this.color =  'blue';
  }

}

In the above example the following occurs:

• An event listener is added to the click event which will be fired when a click event occurs anywhere within the component
• The color property in our AppComponent class is bound to the style.color property on the component. So whenever the color property is updated so will the style.color property of our component
• The result will be that whenever someone clicks on the component the color will be updated.

Usage in @Directive:

Although it can be used on component these decorators are often used in a attribute directives. When used in an @Directive the host changes the element on which the directive is placed. For example take a look at this component template:

<p p_Dir>some paragraph</p>

Here p_Dir is a directive on the <p> element. When @HostBinding or @HostListener is used within the directive class the host will now refer to the <p>.

Let me seperate up everything and solve approach each problem in isolation:

Authentication

For authentication, baseauth has the advantage that it is a mature solution on the protocol level. This means a lot of "might crop up later" problems are already solved for you. For example, with BaseAuth, user agents know the password is a password so they don't cache it.

Auth server load

If you dispense a token to the user instead of caching the authentication on your server, you are still doing the same thing: Caching authentication information. The only difference is that you are turning the responsibility for the caching to the user. This seems like unnecessary labor for the user with no gains, so I recommend to handle this transparently on your server as you suggested.

Transmission Security

If can use an SSL connection, that's all there is to it, the connection is secure*. To prevent accidental multiple execution, you can filter multiple urls or ask users to include a random component ("nonce") in the URL.

url = username:[email protected]/api/call/nonce

If that is not possible, and the transmitted information is not secret, I recommend securing the request with a hash, as you suggested in the token approach. Since the hash provides the security, you could instruct your users to provide the hash as the baseauth password. For improved robustness, I recommend using a random string instead of the timestamp as a "nonce" to prevent replay attacks (two legit requests could be made during the same second). Instead of providing seperate "shared secret" and "api key" fields, you can simply use the api key as shared secret, and then use a salt that doesn't change to prevent rainbow table attacks. The username field seems like a good place to put the nonce too, since it is part of the auth. So now you have a clean call like this:

nonce = generate_secure_password(length: 16);
one_time_key = nonce + '-' + sha1(nonce+salt+shared_key);
url = username:[email protected]/api/call

It is true that this is a bit laborious. This is because you aren't using a protocol level solution (like SSL). So it might be a good idea to provide some kind of SDK to users so at least they don't have to go through it themselves. If you need to do it this way, I find the security level appropriate (just-right-kill).

Secure secret storage

It depends who you are trying to thwart. If you are preventing people with access to the user's phone from using your REST service in the user's name, then it would be a good idea to find some kind of keyring API on the target OS and have the SDK (or the implementor) store the key there. If that's not possible, you can at least make it a bit harder to get the secret by encrypting it, and storing the encrypted data and the encryption key in seperate places.

If you are trying to keep other software vendors from getting your API key to prevent the development of alternate clients, only the encrypt-and-store-seperately approach almost works. This is whitebox crypto, and to date, no one has come up with a truly secure solution to problems of this class. The least you can do is still issue a single key for each user so you can ban abused keys.

(*) EDIT: SSL connections should no longer be considered secure without taking additional steps to verify them.

iOS 8 ~/Library/Developer/CoreSimulator/Devices/[Device ID]/data/Applications/[appGUID]/Documents/

With introduction of React hooks the state management (including forms state) became very simple and, in my opinion, way more understandable and predictable comparing with magic of other frameworks. For example:

const MyComponent = () => {
    const [value, setValue] = React.useState('some initial value');
    return <input value={value} onChange={e => setValue(e.target.value)} />;
}

This one-way flow makes it trivial to understand how the data is updated and when rendering happens. Simple but powerful to do any complex stuff in predictable and clear way. In this case, do "two-way" form state binding.

The example uses the primitive string value. Complex state management, eg. objects, arrays, nested data, can be managed this way too, but it is easier with help of libraries, like Hookstate (Disclaimer: I am the author of this library). Here is the example of complex state management.

When a form grows, there is an issue with rendering performance: form state is changed (so rerendering is needed) on every keystroke on any form field. This issue is also addressed by Hookstate. Here is the example of the form with 5000 fields: the state is updated on every keystore and there is no performance lag at all.

EventArgs e is a parameter called e that contains the event data, see the EventArgs MSDN page for more information.

Object Sender is a parameter called Sender that contains a reference to the control/object that raised the event.

Event Arg Class: http://msdn.microsoft.com/en-us/library/system.eventargs.aspx

Example:

protected void btn_Click (object sender, EventArgs e){
   Button btn = sender as Button;
   btn.Text = "clicked!";
}

Edit: When Button is clicked, the btn_Click event handler will be fired. The "object sender" portion will be a reference to the button which was clicked

Add this to your <head> section:

<script>
  function resizeIframe(obj) {
    obj.style.height = obj.contentWindow.document.documentElement.scrollHeight + 'px';
  }
</script>

And change your iframe to this:

<iframe src="..." frameborder="0" scrolling="no" onload="resizeIframe(this)" />

As found on sitepoint discussion.

WordPress does not execute PHP in post/page content by default unless it has a shortcode.

The quickest and easiest way to do this is to use a plugin that allows you to run PHP embedded in post content.

There are two other "quick and easy" ways to accomplish it without a plugin:

• Make it a shortcode (put it in functions.php and have it echo the country name) which is very easy - see here: Shortcode API at WP Codex

• Put it in a template file - make a custom template for that page based on your default page template and add the PHP into the template file rather than the post content: Custom Page Templates

Alternative: Install adb the easy way

If you don't want to have to worry about your path or updating adb manually, you can use homebrew instead.

brew cask install android-platform-tools

with open("test.txt", "a") as myfile:
    myfile.write("appended text")

You can

1. set it as type text
2. convert to date on focus
3. make click on it
4. ...let user check date
5. on change store the value
6. set input to type text
7. set text type input value to the stored value

like this...

$("#dateplaceholder").change(function(evt) {_x000D_
  var date = new Date($("#dateplaceholder").val());_x000D_
  $("#dateplaceholder").attr("type", "text");_x000D_
  $("#dateplaceholder").val(date.getDate() + "/" + (date.getMonth() + 1) + "/" + date.getFullYear());_x000D_
});_x000D_
$("#dateplaceholder").focus(function(evt) {_x000D_
  $("#dateplaceholder").attr("type", "date");_x000D_
  setTimeout('$("#dateplaceholder").click();', 500);_x000D_
});_x000D_
$("#dateplaceholder").attr("type", "text");

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>_x000D_
<input type="date" id="dateplaceholder" placeholder="Set the date" />

They changed the packaging for psycopg2. Installing the binary version fixed this issue for me. The above answers still hold up if you want to compile the binary yourself.

See http://initd.org/psycopg/docs/news.html#what-s-new-in-psycopg-2-8.

Binary packages no longer installed by default. The ‘psycopg2-binary’ package must be used explicitly.

And http://initd.org/psycopg/docs/install.html#binary-install-from-pypi

So if you don't need to compile your own binary, use:

pip install psycopg2-binary

With a = subprocess.Popen("cdrecord --help",stdout = subprocess.PIPE) , you need to either use a list or use shell=True;

Either of these will work. The former is preferable.

a = subprocess.Popen(['cdrecord', '--help'], stdout=subprocess.PIPE)

a = subprocess.Popen('cdrecord --help', shell=True, stdout=subprocess.PIPE)

Also, instead of using Popen.stdout.read/Popen.stderr.read, you should use .communicate() (refer to the subprocess documentation for why).

proc = subprocess.Popen(['cdrecord', '--help'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
stdout, stderr = proc.communicate()

By the way, in case you dont know what is the exact location of your JSONObject inside your JSONArray i suggest using the following code: (I assumed that "jsonArray" is your main variable with all the data, and i'm searching the exact object inside the array with equals function)

    JSONArray list = new JSONArray(); 
    if (jsonArray != null){
        int len = jsonArray.length();
        for (int i=0;i<len;i++)
        { 
            boolean flag;
            try {
                flag = jsonArray.get(i).toString().equals(obj.toString());
                //Excluding the item at position
                if (!flag) 
                {
                    list.put(jsonArray.get(i));
                }
            } catch (JSONException e) {
                e.printStackTrace();
            }  
        } 
    }
    jsonArray = list;

my case was a little different - unintentionally I have changed owner of git repository (project.git directory in my case), changing owner back to the git user helped

How you are running your script? If you did with

$ sh myscript

you should try:

$ bash myscript

or, if the script is executable:

$ ./myscript

sh and bash are two different shells. While in the first case you are passing your script as an argument to the sh interpreter, in the second case you decide on the very first line which interpreter will be used.

Just use the unary minus operator:

int x = 5;
...
x = -x; // Here's the mystery library function - the single character "-"

Java has two minus operators:

• the familiar arithmetic version (eg 0 - x), and
• the unary minus operation (used here), which negates the (single) operand

This compiles and works as expected.

Paging events are handled in this way,

 $(document).ready(function() {

    $('#example')
        .on( 'order.dt',  function () { console.log('Order' ); } )
        .on( 'search.dt', function () {console.log('Search' ); } )
        .on( 'page.dt',   function () { console.log('Page' ); } )
        .dataTable();
} );

documented in the official website, here http://www.datatables.net/examples/advanced_init/dt_events.html

The length.dt event is fired whenever the table's page length is changed

$('#example').dataTable();

$('#example').on( 'length.dt', function ( e, settings, len ) {
    console.log( 'New page length: '+len );
} );

http://datatables.net/reference/event/length

More events here

datatables.net/reference/event/

On a MAC, you need to use nm *.o | c++filt, as there is no -C option in nm.

fopen() will open a resource in the same directory as the file executing the command. In other words, if you're just running the file ~/test.php, your script will create ~/myText.txt.

This can get a little confusing if you're using any URL rewriting (such as in an MVC framework) as it will likely create the new file in whatever the directory contains the root index.php file.

Also, you must have correct permissions set and may want to test before writing to the file. The following would help you debug:

$fp = fopen("myText.txt","wb");
if( $fp == false ){
    //do debugging or logging here
}else{
    fwrite($fp,$content);
    fclose($fp);
}

In PHP, If your network under proxy. You should set the proxy URL and port

curl_setopt($ch, CURLOPT_PROXY, "http://url.com"); //your proxy url
curl_setopt($ch, CURLOPT_PROXYPORT, "80"); // your proxy port number

This is solves my problem

In the current version of Web API, the usage of multiple complex objects (like your Content and Config complex objects) within the Web API method signature is not allowed. I'm betting good money that config (your second parameter) is always coming back as NULL. This is because only one complex object can be parsed from the body for one request. For performance reasons, the Web API request body is only allowed to be accessed and parsed once. So after the scan and parsing occurs of the request body for the "content" parameter, all subsequent body parses will end in "NULL". So basically:

• Only one item can be attributed with [FromBody].
• Any number of items can be attributed with [FromUri].

Below is a useful extract from Mike Stall's excellent blog article (oldie but goldie!). You'll want to pay attention to item 4:

Here are the basic rules to determine whether a parameter is read with model binding or a formatter:

1. If the parameter has no attribute on it, then the decision is made purely on the parameter's .NET type. "Simple types" use model binding. Complex types use the formatters. A "simple type" includes: primitives, TimeSpan, DateTime, Guid, Decimal, String, or something with a TypeConverter that converts from strings.
2. You can use a [FromBody] attribute to specify that a parameter should be from the body.
3. You can use a [ModelBinder] attribute on the parameter or the parameter's type to specify that a parameter should be model bound. This attribute also lets you configure the model binder. [FromUri] is a derived instance of [ModelBinder] that specifically configures a model binder to only look in the URI.
4. The body can only be read once. So if you have 2 complex types in the signature, at least one of them must have a [ModelBinder] attribute on it.

It was a key design goal for these rules to be static and predictable.

A key difference between MVC and Web API is that MVC buffers the content (e.g. request body). This means that MVC's parameter binding can repeatedly search through the body to look for pieces of the parameters. Whereas in Web API, the request body (an HttpContent) may be a read-only, infinite, non-buffered, non-rewindable stream.

You can read the rest of this incredibly useful article on your own so, to cut a long story short, what you're trying to do is not currently possible in that way (meaning, you have to get creative). What follows is not a solution, but a workaround and only one possibility; there are other ways.

Solution/Workaround

(Disclaimer: I've not used it myself, I'm just aware of the theory!)

One possible "solution" is to use the JObject object. This objects provides a concrete type specifically designed for working with JSON.

You simply need to adjust the signature to accept just one complex object from the body, the JObject, let's call it stuff. Then, you manually need to parse properties of the JSON object and use generics to hydrate the concrete types.

For example, below is a quick'n'dirty example to give you an idea:

public void StartProcessiong([FromBody]JObject stuff)
{
  // Extract your concrete objects from the json object.
  var content = stuff["content"].ToObject<Content>();
  var config = stuff["config"].ToObject<Config>();

  . . . // Now do your thing!
}

I did say there are other ways, for example you can simply wrap your two objects in a super-object of your own creation and pass that to your action method. Or you can simply eliminate the need for two complex parameters in the request body by supplying one of them in the URI. Or ... well, you get the point.

Let me just reiterate I've not tried any of this myself, although it should all work in theory.

One more trick, search photos by hashtags:

GET https://www.instagram.com/graphql/query/?query_hash=3e7706b09c6184d5eafd8b032dbcf487&variables={"tag_name":"nature","first":25,"after":""}

Where:

query_hash - permanent value(i belive its hash of 17888483320059182, can be changed in future)

tag_name - the title speaks for itself

first - amount of items to get (I do not know why, but this value does not work as expected. The actual number of returned photos is slightly larger than the value multiplied by 4.5 (about 110 for the value 25, and about 460 for the value 100))

after - id of the last item if you want to get items from that id. Value of end_cursor from JSON response can be used here.

Had this problem in VS 2017 caused by:

static async Task Main(string[] args)

(Feature 'async main' is not available in C# 7.0. Please use language version 7.1 or greater)

Adding

<LangVersion>latest</LangVersion>

to app.csproj helped.

Blowfish isn't better than MD5 or SHA512, as they serve different purposes. MD5 and SHA512 are hashing algorithms, Blowfish is an encryption algorithm. Two entirely different cryptographic functions.

If you want to clear the build history of MultiBranchProject (e.g. pipeline), go to your Jenkins home page ? Manage Jenkins ? Script Console and run the following script:

def projectName = "ProjectName"
def project = Jenkins.instance.getItem(projectName)
def jobs = project.getItems().each {
  def job = it
  job.getBuilds().each { it.delete() }
  job.nextBuildNumber = 1
  job.save()
}

../htmlfilename with .html User can do this This will solve your problem of redirection to anypage for local files.

Really stupid question: Are you sure the string is being truncated, and not just broken at the linebreak you specify (and possibly not showing in your interface)? Ie, do you expect the field to show as

This will be inserted \n This will not be

or

This will be inserted

This will not be

Also, what interface are you using? Is it possible that something along the way is eating your backslashes?

It seems like you installed a zip version of sbt, which is fine. But I suggest you install the native debian package if you are on Ubuntu. That is how I managed to install it on my Ubuntu 12.04. Check it out here: http://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html Or simply directly download it from here.

Try this,

get-music:
 rsync -avzru --delete-excluded server:/media/10001/music/ /media/Incoming/music/

put-music:
 rsync -avzru --delete-excluded /media/Incoming/music/ server:/media/10001/music/

sync-music: get-music put-music

I just test this and it worked for me. I'm doing a 2-way sync between Windows7 (using cygwin with the rsync package installed) and FreeNAS fileserver (FreeNAS runs on FreeBSD with rsync package pre-installed).

Try this, it work for me

DECLARE @spname sysname;
DECLARE SPCursor CURSOR FOR
SELECT SCHEMA_NAME(schema_id) + '.' + name
FROM sys.objects
WHERE type = 'P';
OPEN SPCursor;
FETCH NEXT FROM SPCursor INTO @spname;
WHILE @@FETCH_STATUS = 0
BEGIN
EXEC('DROP PROCEDURE ' + @spname);
FETCH NEXT FROM SPCursor INTO @spname;
END
CLOSE SPCursor;
DEALLOCATE SPCursor;

A BufferedReader can be opened and closed but a File is never opened, it just represents a path in the filesystem.

EDIT: Thanks for the comments - I looked it up in the C99 standard, which says in section 6.5.3.4:

The value of the result is implementation-defined, and its type (an unsigned integer type) is size_t, defined in <stddef.h> (and other headers)

So, the size of size_t is not specified, only that it has to be an unsigned integer type. However, an interesting specification can be found in chapter 7.18.3 of the standard:

limit of size_t

SIZE_MAX 65535

Which basically means that, irrespective of the size of size_t, the allowed value range is from 0-65535, the rest is implementation dependent.

If anyone has the same problem, one possible solution is to set the bindto stream context configuration parameter (assuming you're connecting from 11.22.33.44 to 55.66.77.88):

$context = [
    'socket' => [
        'bindto' => '55.66.77.88'
    ]
];

$options = [
    'soapVersion' => SOAP_1_1,
    'stream_context' => stream_context_create($context)
];

$client = new Client('11.22.33.44', $options);

NOTE: In 2016, you can probably use flexbox to solve this problem easier.

This method works correctly IE7+ and all major browsers, it's been tried and tested in a number of complex viewport-based web applications.

<style>
    .container {
        font-size: 0;
    }

    .ie7 .column {
        font-size: 16px; 
        display: inline; 
        zoom: 1;
    }

    .ie8 .column {
        font-size:16px;
    }

    .ie9_and_newer .column { 
        display: inline-block; 
        width: 50%; 
        font-size: 1rem;
    }
</style>

<div class="container">
    <div class="column">text that can wrap</div>
    <div class="column">text that can wrap</div>
</div>

Live demo: http://output.jsbin.com/sekeco/2

The only downside to this method for IE7/8, is relying on body {font-size:??px} as basis for em/%-based font-sizing.

IE7/IE8 specific CSS could be served using IE's Conditional comments

The best way to apply a class is to use ng-class.It can be used to apply classes based on some condition.

<div ng-repeat="product in products">
   <div ng-class="getRowClass($index)">
       <div class="col-sm-4" >
           <!-- your code -->
       </div>
   </div>

and then in your controller

$scope.getRowClass = function(index){
    if(index%3 == 0){
     return "row";
    }
}

I think Scapy is what are you looking for.

http://www.secdev.org/projects/scapy/

you can build and send frames (packets) with it

Just remember to specify the file extension on windows. Otherwise, you have to write a much complicated is_exe for windows using PATHEXT environment variable. You may just want to use FindPath.

OTOH, why are you even bothering to search for the executable? The operating system will do it for you as part of popen call & will raise an exception if the executable is not found. All you need to do is catch the correct exception for given OS. Note that on Windows, subprocess.Popen(exe, shell=True) will fail silently if exe is not found.

Incorporating PATHEXT into the above implementation of which (in Jay's answer):

def which(program):
    def is_exe(fpath):
        return os.path.exists(fpath) and os.access(fpath, os.X_OK) and os.path.isfile(fpath)

    def ext_candidates(fpath):
        yield fpath
        for ext in os.environ.get("PATHEXT", "").split(os.pathsep):
            yield fpath + ext

    fpath, fname = os.path.split(program)
    if fpath:
        if is_exe(program):
            return program
    else:
        for path in os.environ["PATH"].split(os.pathsep):
            exe_file = os.path.join(path, program)
            for candidate in ext_candidates(exe_file):
                if is_exe(candidate):
                    return candidate

    return None

To Bind the DataTable into the DataGridTextColumn in CodeBehind xaml

<DataGrid
  Name="TrkDataGrid"
  AutoGenerateColumns="False"
  ItemsSource="{Binding}">
</DataGrid>

xaml.cs

  foreach (DataColumn col in dt.Columns)
  {
    TrkDataGrid.Columns.Add(
      new DataGridTextColumn
      {
        Header = col.ColumnName,
        Binding = new Binding(string.Format("[{0}]", col.ColumnName))
      });
  }

  TrkDataGrid.ItemsSource= dt.DefaultView;

If you're using a module, that means you're bringing all the methods into your class. If you extend a class with a module, that means you're "bringing in" the module's methods as class methods. If you include a class with a module, that means you're "bringing in" the module's methods as instance methods.

EX:

 module A
   def say
     puts "this is module A"
   end
 end

 class B
   include A
 end

 class C
   extend A
 end

B.say => undefined method 'say' for B:Class

B.new.say => this is module A

C.say => this is module A

C.new.say => undefined method 'say' for C:Class

Try this :

   $i = 0;    
    while($row = mysqli_fetch_array($result)) {  

            $posts['post_id'] = $row[$i]['post_id'];
            $posts['post_title'] = $row[$i]['post_title'];
            $posts['type'] = $row[$i]['type'];
            $posts['author'] = $row[$i]['author'];  

        }   
    $i++;
    }

print_r($posts);

Though the previou answer are almost similar to what I am going to do, but using the index method does not require using another indexing method .loc(). It can be done in a similar but precise manner as

df.drop(df.index[df['line_race'] == 0], inplace = True)

After spending a lot of time trying to resolve this issue, finally found a solution that works. The solution makes use of Spring's ResourceUtils. Should work for json files as well.

Thanks for the well written page by Lokesh Gupta : Blog

package utils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.util.ResourceUtils;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Properties;
import java.io.File;


public class Utils {

    private static final Logger LOGGER = LoggerFactory.getLogger(Utils.class.getName());

    public static Properties fetchProperties(){
        Properties properties = new Properties();
        try {
            File file = ResourceUtils.getFile("classpath:application.properties");
            InputStream in = new FileInputStream(file);
            properties.load(in);
        } catch (IOException e) {
            LOGGER.error(e.getMessage());
        }
        return properties;
    }
}

To answer a few concerns on the comments :

Pretty sure I had this running on Amazon EC2 using java -jar target/image-service-slave-1.0-SNAPSHOT.jar

Look at my github repo : https://github.com/johnsanthosh/image-service to figure out the right way to run this from a JAR.

There are two storage areas involved: the stack and the heap.The stack is where the current state of a method call is kept (ie local variables and references), and the heap is where objects are stored. recursion and memory

I gues there are too many keys in the counter dict that will consume too much memory of the heap region, so the Python runtime will raise a OutOfMemory exception.

To save it, don't create a giant object, e.g. the counter.

1.StackOverflow

a program that create too many local variables.

Python 2.7.9 (default, Mar  1 2015, 12:57:24) 
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> f = open('stack_overflow.py','w')
>>> f.write('def foo():\n')
>>> for x in xrange(10000000):
...   f.write('\tx%d = %d\n' % (x, x))
... 
>>> f.write('foo()')
>>> f.close()
>>> execfile('stack_overflow.py')
Killed

2.OutOfMemory

a program that creats a giant dict includes too many keys.

>>> f = open('out_of_memory.py','w')
>>> f.write('def foo():\n')
>>> f.write('\tcounter = {}\n')
>>> for x in xrange(10000000):
...   f.write('counter[%d] = %d\n' % (x, x))
... 
>>> f.write('foo()\n')
>>> f.close()
>>> execfile('out_of_memory.py')
Killed

• 7. Memory : Stack vs Heap
• recursion and memory

Use this code on button click in activity and When return back to another activity just finish previous activity by setting flag in intent then put only one Activity in the Stack and destroy the previous one.

  Intent i=new Intent("this","YourClassName.Class");
  i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
  startActivity(i);

Object[] possibleValues = enumValue.getDeclaringClass().getEnumConstants();

I guess a better option is to put $("#idname").autocomplete( "search", "" ); into the onclick paramter of the text box . Since on select, a focus is put in by jquery , this can be a workaround . Dont know if it should be an acceptable solution.

Swift 4

You Can Easily Move Up And Down UITextField With Keyboard With Animation

import UIKit

class ViewController: UIViewController {

    @IBOutlet var textField: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()
        NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillChange), name: .UIKeyboardWillChangeFrame, object: nil)
    }

    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        textField.resignFirstResponder()
    }

    @objc func keyboardWillChange(notification: NSNotification) {

        let duration = notification.userInfo![UIKeyboardAnimationDurationUserInfoKey] as! Double
        let curve = notification.userInfo![UIKeyboardAnimationCurveUserInfoKey] as! UInt
        let curFrame = (notification.userInfo![UIKeyboardFrameBeginUserInfoKey] as! NSValue).cgRectValue
        let targetFrame = (notification.userInfo![UIKeyboardFrameEndUserInfoKey] as! NSValue).cgRectValue
        let deltaY = targetFrame.origin.y - curFrame.origin.y

        UIView.animateKeyframes(withDuration: duration, delay: 0.0, options: UIViewKeyframeAnimationOptions(rawValue: curve), animations: {
            self.textField.frame.origin.y+=deltaY

        },completion: nil)
    }

A neat way to chain multiple operators:

f = lambda x,y: 'greater' if x > y else 'less' if y > x else 'equal'

array = [(0,0),(0,1),(1,0),(1,1)]

for a in array:
  x, y = a[0], a[1]
  print(f(x,y))

# Output is:
#   equal,
#   less,
#   greater,
#   equal

In Excel 2013 and resent versions, you can use F2 and F4 to speed things up when you want to toggle the lock.

About the keys:

• F2 - With a cell selected, it places the cell in formula edit mode.

• F4 - Toggles the cell reference lock (the $ signs).

• Example scenario with 'A4'.

  • Pressing F4 will convert 'A4' into '$A$4'
  • Pressing F4 again converts '$A$4' into 'A$4'
  • Pressing F4 again converts 'A$4' into '$A4'
  • Pressing F4 again converts '$A4' back to the original 'A4'

How To:

• In Excel, select a cell with a formula and hit F2 to enter formula edit mode. You can also perform these next steps directly in the Formula bar. (Issue with F2 ? Double check that 'F Lock' is on)

  • If the formula has one cell reference;
    • Hit F4 as needed and the single cell reference will toggle.
  • If the forumla has more than one cell reference, hitting F4 (without highlighting anything) will toggle the last cell reference in the formula.
  • If the formula has more than one cell reference and you want to change them all;
    • You can use your mouse to highlight the entire formula or you can use the following keyboard shortcuts;
    • Hit End key (If needed. Cursor is at end by default)
    • Hit Ctrl + Shift + Home keys to highlight the entire formula
    • Hit F4 as needed
  • If the formula has more than one cell reference and you only want to edit specific ones;
    • Highlight the specific values with your mouse or keyboard ( Shift and arrow keys) and then hit F4 as needed.

Notes:

• These notes are based on my observations while I was looking into this for one of my own projects.
• It only works on one cell formula at a time.
• Hitting F4 without selecting anything will update the locking on the last cell reference in the formula.
• Hitting F4 when you have mixed locking in the formula will convert everything to the same thing. Example two different cell references like '$A4' and 'A$4' will both become 'A4'. This is nice because it can prevent a lot of second guessing and cleanup.
• Ctrl+A does not work in the formula editor but you can hit the End key and then Ctrl + Shift + Home to highlight the entire formula. Hitting Home and then Ctrl + Shift + End.
• OS and Hardware manufactures have many different keyboard bindings for the Function (F Lock) keys so F2 and F4 may do different things. As an example, some users may have to hold down you 'F Lock' key on some laptops.
• 'DrStrangepork' commented about F4 actually closes Excel which can be true but it depends on what you last selected. Excel changes the behavior of F4 depending on the current state of Excel. If you have the cell selected and are in formula edit mode (F2), F4 will toggle cell reference locking as Alexandre had originally suggested. While playing with this, I've had F4 do at least 5 different things. I view F4 in Excel as an all purpose function key that behaves something like this; "As an Excel user, given my last action, automate or repeat logical next step for me".

Only if the people who created the computers are bad with boolean logic. Which they shouldn't be.

Every comparison (>= <= > <) can be done in the same speed.

What every comparison is, is just a subtraction (the difference) and seeing if it's positive/negative.
(If the msb is set, the number is negative)

How to check a >= b? Sub a-b >= 0 Check if a-b is positive.
How to check a <= b? Sub 0 <= b-a Check if b-a is positive.
How to check a < b? Sub a-b < 0 Check if a-b is negative.
How to check a > b? Sub 0 > b-a Check if b-a is negative.

Simply put, the computer can just do this underneath the hood for the given op:

a >= b == msb(a-b)==0
a <= b == msb(b-a)==0
a > b == msb(b-a)==1
a < b == msb(a-b)==1

and of course the computer wouldn't actually need to do the ==0 or ==1 either.
for the ==0 it could just invert the msb from the circuit.

Anyway, they most certainly wouldn't have made a >= b be calculated as a>b || a==b lol

use binary search

public class FindSqrt {

    public static void main(String[] strings) {

        int num = 10000;
        System.out.println(sqrt(num, 0, num));
    }

    private static int sqrt(int num, int min, int max) {
        int middle = (min + max) / 2;
        int x = middle * middle;
        if (x == num) {
            return middle;
        } else if (x < num) {
            return sqrt(num, middle, max);
        } else {
            return sqrt(num, min, middle);
        }
    }
}

As already stated ??!??! is essentially two trigraphs (??! and ??! again) mushed together that get replaced-translated to ||, i.e the logical OR, by the preprocessor.

The following table containing every trigraph should help disambiguate alternate trigraph combinations:

Trigraph   Replaces

??(        [
??)        ]
??<        {
??>        }
??/        \
??'        ^
??=        #
??!        |
??-        ~

^{Source: C: A Reference Manual 5th Edition}

So a trigraph that looks like ??(??) will eventually map to [], ??(??)??(??) will get replaced by [][] and so on, you get the idea.

Since trigraphs are substituted during preprocessing you could use cpp to get a view of the output yourself, using a silly trigr.c program:

void main(){ const char *s = "??!??!"; } 

and processing it with:

cpp -trigraphs trigr.c 

You'll get a console output of

void main(){ const char *s = "||"; }

As you can notice, the option -trigraphs must be specified or else cpp will issue a warning; this indicates how trigraphs are a thing of the past and of no modern value other than confusing people who might bump into them.

As for the rationale behind the introduction of trigraphs, it is better understood when looking at the history section of ISO/IEC 646:

ISO/IEC 646 and its predecessor ASCII (ANSI X3.4) largely endorsed existing practice regarding character encodings in the telecommunications industry.

As ASCII did not provide a number of characters needed for languages other than English, a number of national variants were made that substituted some less-used characters with needed ones.

^{(emphasis mine)}

So, in essence, some needed characters (those for which a trigraph exists) were replaced in certain national variants. This leads to the alternate representation using trigraphs comprised of characters that other variants still had around.

Taking xcramps' suggestion one step further, I can't tell you how many times I've used:

:%!sort

to sort a list of items in a file.

Details:

:range!command

will execute a shell command on the specified range of lines. A range is usually specified as start,end

Examples:
1,3 specifies the first 3 lines
'a,'b selects the text between bookmarks a and b
.,$ selects the entire document (. = first line; $ = last line)
% is a shortcut for .,$ and also selects the entire document.

Feel free to mix and match numbers, bookmarks, ., and $.

You should use something like this:

<div style="text-align:center">  
    <input type="submit" />  
</div>  

Or you could use something like this. By giving the element a width and specifying auto for the left and right margins the element will center itself in its parent.

<input type="submit" style="width: 300px; margin: 0 auto;" />

If you need to store the keys separately, here's a solution that requires less typing than every other solution presented thus far, using Extended Iterable Unpacking (python3.x+).

newdict = {1: 0, 2: 0, 3: 0}
*k, = newdict

k
# [1, 2, 3]

            +---------------------------------------------------------+
            ¦ k = list(d)   ¦   9 characters (excluding whitespace)   ¦
            +---------------+-----------------------------------------¦
            ¦ k = [*d]      ¦   6 characters                          ¦
            +---------------+-----------------------------------------¦
            ¦ *k, = d       ¦   5 characters                          ¦
            +---------------------------------------------------------+

Use getElementById:

document.getElementById ('frmProduct').submit ()

BEST ANSWER 1:

ActionNameSelectorAttribute mentioned in

1. How do you handle multiple submit buttons in ASP.NET MVC Framework?

2. ASP.Net MVC 4 Form with 2 submit buttons/actions

http://weblogs.asp.net/scottgu/archive/2007/12/09/asp-net-mvc-framework-part-4-handling-form-edit-and-post-scenarios.aspx

ANSWER 2

Reference: dotnet-tricks - Handling multiple submit buttons on the same form - MVC Razor

Second Approach

Adding a new Form for handling Cancel button click. Now, on Cancel button click we will post the second form and will redirect to the home page.

Third Approach: Client Script

<button name="ClientCancel" type="button" 
    onclick=" document.location.href = $('#cancelUrl').attr('href');">Cancel (Client Side)
</button>
<a id="cancelUrl" href="@Html.AttributeEncode(Url.Action("Index", "Home"))" 
style="display:none;"></a>

You can use one liner javascript with array reduce method and ES6 destructuring to convert array of key value pairs to object.

arr.reduce((map, { name, input }) => ({ ...map, [name]: input }), {});

For me, the only thing that worked in Java 7 on OS X 10.9 was this:

// driver = new RemoteWebDriver(new URL(grid), capability);
driver.manage().window().setPosition(new Point(0,0));
driver.manage().window().setSize(new Dimension(1024,768));

Where 1024 is the width, and 768 is the height.

Still seems crazy to have to pull anything back from the server just to delete it, but at least getting back just the IDs is a lot leaner than pulling down the full entities:

var ids = from w in context.Widgets where w.WidgetId == widgetId select w.Id;
context.Widgets.RemoveRange(from id in ids.AsEnumerable() select new Widget { Id = id });

I also had this problem and I solved it inserting my Flutter SDK path which was

C:\...\flutter_windows_v0.6.0-beta\flutter

MySQL :

SELECT * 
FROM table_name
WHERE table_name.the_date > DATE_SUB(NOW(), INTERVAL 24 HOUR)

The INTERVAL can be in YEAR, MONTH, DAY, HOUR, MINUTE, SECOND

For example, In the last 10 minutes

SELECT * 
FROM table_name
WHERE table_name.the_date > DATE_SUB(NOW(), INTERVAL 10 MINUTE)

VBScript doesn't have Try/Catch. (VBScript language reference. If it had Try, it would be listed in the Statements section.)

On Error Resume Next is the only error handling in VBScript. Sorry. If you want try/catch, JScript is an option. It's supported everywhere that VBScript is and has the same capabilities.

Try:

/usr/local/mysql/bin/mysqladmin -u root -p shutdown 

Or:

sudo mysqld stop

Or:

sudo /usr/local/mysql/bin/mysqld stop

Or:

sudo mysql.server stop

If you install the Launchctl in OSX you can try:

MacPorts

sudo launchctl unload -w /Library/LaunchDaemons/org.macports.mysql.plist
sudo launchctl load -w /Library/LaunchDaemons/org.macports.mysql.plist

Note: this is persistent after reboot.

Homebrew

launchctl unload -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.mysql.plist

Binary installer

sudo /Library/StartupItems/MySQLCOM/MySQLCOM stop
sudo /Library/StartupItems/MySQLCOM/MySQLCOM start
sudo /Library/StartupItems/MySQLCOM/MySQLCOM restart

I found that in: https://stackoverflow.com/a/102094/58768

The following is a method for using closures to address the issue to which you refer. It also takes into account the fact that may which to change the message over time without affecting the binding. And it uses jQuery to be succinct.

var msg = (function(message){
  var _message = message;
  return {
    say:function(){alert(_message)},
    change:function(message){_message = message}
  };
})("My Message");
$("#myButton").click(msg.say);

var arrayDiv = new Array();
    for(var i=0; i <= 1; i++){
        arrayDiv[i] = document.createElement('div');
        arrayDiv[i].id = 'block' + i;
        arrayDiv[i].className = 'block' + i;
    }
    document.body.appendChild(arrayDiv[0].appendChild(arrayDiv[1]));

You might find Perl or Python useful to get data from the serial port. To send data to the server, the solution could be easy if the server is (let's say) an HTTP application or even a popular database. The solution would be not so easy if it is some custom/proprietary TCP application.

It is important to remember the evaluations to true and false in JavaScript:

• Everything with a "Value" is true (namely truthy), for example:

  • 101,
  • 3.1415,
  • -11,
  • "Lucky Brain",
  • new Object()
  • and, of course, true

• Everything without a "Value" is false (namely falsy), for example:

  • 0,
  • -0,
  • "" (empty string),
  • undefined,
  • null,
  • NaN (not a number)
  • and, of course, false

Applying the "logical not" operator (!) evaluates the operand, converting it to boolean and then negating it. Applying it twice will negate the negation, effectively converting the value to boolean. Not applying the operator will just be a regular assignment of the exact value. Examples:

var value = 23; // number
var valueAsNegatedBoolean = !value; // boolean falsy (because 23 is truthy)
var valueAsBoolean = !!value; // boolean truthy
var copyOfValue = value; // number 23

var value2 = 0;
var value2AsNegatedBoolean = !value2; // boolean truthy (because 0 is falsy)
var value2AsBoolean = !!value2; // boolean falsy
var copyOfValue2 = value2; // number 0

• value2 = value; assigns the exact object value even if it is not boolean hence value2 won't necessarily end up being boolean.
• value2 = !!value; assigns a guaranteed boolean as the result of the double negation of the operand value and it is equivalent to the following but much shorter and readable:

if (value) {
  value2 = true;
} else {
  value2 = false;
}

I have try this and it works for me:

Private Sub DelayMs(ms As Long)
    Debug.Print TimeValue(Now)
    Application.Wait (Now + (ms * 0.00000001))
    Debug.Print TimeValue(Now)
End Sub

Private Sub test()
    Call DelayMs (2000)  'test code with delay of 2 seconds, see debug window
End Sub

Use this Retrofit Client

class RetrofitClient2(context: Context) : OkHttpClient() {

    private var mContext:Context = context
    private var retrofit: Retrofit? = null

    val client: Retrofit?
        get() {
            val logging = HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY)

            val client = OkHttpClient.Builder()
                    .connectTimeout(Constants.TIME_OUT, TimeUnit.SECONDS)
                    .readTimeout(Constants.TIME_OUT, TimeUnit.SECONDS)
                    .writeTimeout(Constants.TIME_OUT, TimeUnit.SECONDS)
            client.addInterceptor(logging)
            client.interceptors().add(AddCookiesInterceptor(mContext))

            val gson = GsonBuilder().setDateFormat("yyyy-MM-dd'T'HH:mm:ssZ").create()
            if (retrofit == null) {

                retrofit = Retrofit.Builder()
                        .baseUrl(Constants.URL)
                        .addConverterFactory(GsonConverterFactory.create(gson))
                        .client(client.build())
                        .build()
            }
            return retrofit
        }
}

I'm passing the JWT along with every request. Please don't mind the variable names, it's a bit confusing.

class AddCookiesInterceptor(context: Context) : Interceptor {
    val mContext: Context = context
    @Throws(IOException::class)
    override fun intercept(chain: Interceptor.Chain): Response {
        val builder = chain.request().newBuilder()
        val preferences = CookieStore().getCookies(mContext)
        if (preferences != null) {
            for (cookie in preferences!!) {
                builder.addHeader("Authorization", cookie)
            }
        }
        return chain.proceed(builder.build())
    }
}

I like Consolas a lot. This top-10 list is a good resource for others. It includes examples and descriptions.

I know this is really late but I did have a similar situation where I used a hybrid approach of maintaining RDBMS standards of normalizing tables upto a point and then storing data in JSON as text value beyond that point. So for example I store data in 4 tables following RDBMS rules of normalization. However in the 4th table to accomodate dynamic schema I store data in JSON format. Every time I want to retrieve data I retrieve the JSON data, parse it and display it in Java. This has worked for me so far and to ensure that I am still able to index the fields I transform to json data in the table to a normalized manner using an ETL. This ensures that while the user is working on the application he faces minimal lag and the fields are transformed to a RDBMS friendly format for data analysis etc. I see this approach working well and believe that given MYSQL (5.7+) also allows parsing of JSON this approach gives you the benefits of both RDBMS and NOSQL databases.

There are several correct ways to display a down-pointing and upward-pointing triangle.

Method 1 : use decimal HTML entity

HTML :

▲
▼

Method 2 : use hexidecimal HTML entity

HTML :

▲
▼

Method 3 : use character directly

HTML :

?
?

Method 4 : use CSS

HTML :

<span class='icon-up'></span>
<span class='icon-down'></span>

CSS :

.icon-up:before {
    content: "\25B2";
}

.icon-down:before {
    content: "\25BC";
}

Each of these three methods should have the same output. For other symbols, the same three options exist. Some even have a fourth option, allowing you to use a string based reference (eg. ♥ to display ?).

You can use a reference website like Unicode-table.com to find which icons are supported in UNICODE and which codes they correspond with. For example, you find the values for the down-pointing triangle at http://unicode-table.com/en/25BC/.

Note that these methods are sufficient only for icons that are available by default in every browser. For symbols like ?,?,?,?,?,? or ?, this is far less likely to be the case. While it is possible to provide cross-browser support for other UNICODE symbols, the procedure is a bit more complicated.

If you want to know how to add support for less common UNICODE characters, see Create webfont with Unicode Supplementary Multilingual Plane symbols for more info on how to do this.

Background images

A totally different strategy is the use of background-images instead of fonts. For optimal performance, it's best to embed the image in your CSS file by base-encoding it, as mentioned by eg. @weasel5i2 and @Obsidian. I would recommend the use of SVG rather than GIF, however, is that's better both for performance and for the sharpness of your symbols.

This following code is the base64 for and SVG version of the icon :

/* size: 0.9kb */
url(data:image/svg+xml;base64,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

When to use background-images or fonts

For many use cases, SVG-based background images and icon fonts are largely equivalent with regards to performance and flexibility. To decide which to pick, consider the following differences:

SVG images

• They can have multiple colors
• They can embed their own CSS and/or be styled by the HTML document
• They can be loaded as a seperate file, embedded in CSS AND embedded in HTML
• Each symbol is represented by XML code or base64 code. You cannot use the character directly within your code editor or use an HTML entity
• Multiple uses of the same symbol implies duplication of the symbol when XML code is embedded in the HTML. Duplication is not required when embedding the file in the CSS or loading it as a seperate file
• You can not use color, font-size, line-height, background-color or other font related styling rules to change the display of your icon, but you can reference different components of the icon as shapes individually.
• You need some knowledge of SVG and/or base64 encoding
• Limited or no support in old versions of IE

Icon fonts

• An icon can have but one fill color, one background color, etc.
• An icon can be embedded in CSS or HTML. In HTML, you can use the character directly or use an HTML entity to represent it.
• Some symbols can be displayed without the use of a webfont. Most symbols cannot.
• Multiple uses of the same symbol implies duplication of the symbol when your character embedded in the HTML. Duplication is not required when embedding the file in the CSS.
• You can use color, font-size, line-height, background-color or other font related styling rules to change the display of your icon
• You need no special technical knowledge
• Support in all major browsers, including old versions of IE

Personally, I would recommend the use of background-images only when you need multiple colors and those color can't be achieved by means of color, background-color and other color-related CSS rules for fonts.

The main benefit of using SVG images is that you can give different components of a symbol their own styling. If you embed your SVG XML code in the HTML document, this is very similar to styling the HTML. This would, however, result in a web page that uses both HTML tags and SVG tags, which could significantly reduce the readability of a webpage. It also adds extra bloat if the symbol is repeated across multiple pages and you need to consider that old versions of IE have no or limited support for SVG.

From what I've read, the need for constexpr comes from an issue in metaprogramming. Trait classes may have constants represented as functions, think: numeric_limits::max(). With constexpr, those types of functions can be used in metaprogramming, or as array bounds, etc etc.

Another example off of the top of my head would be that for class interfaces, you may want derived types define their own constants for some operation.

Edit:

After poking around on SO, it looks like others have come up with some examples of what might be possible with constexprs.

Simpliest and easiest way is by creating a reusable model and trigger.... https://onecompiler.com/java/3wejrcby2?fbclid=IwAR0dHbGDChRUJoCZ3CIDW-JQu7Dz3iYGNGYjxYVCPCWfEqQDogFGTwuOuO8

Probably the simplest way to do it is to create a delegate and then BeginInvoke, followed by a wait at some time in the future, and an EndInvoke.

public bool Foo(){
    Thread.Sleep(100000); // Do work
    return true;
}

public SomeMethod()
{
    var fooCaller = new Func<bool>(Foo);
    // Call the method asynchronously
    var asyncResult = fooCaller.BeginInvoke(null, null);

    // Potentially do other work while the asynchronous method is executing.

    // Finally, wait for result
    asyncResult.AsyncWaitHandle.WaitOne();
    bool fooResult = fooCaller.EndInvoke(asyncResult);

    Console.WriteLine("Foo returned {0}", fooResult);
}

Whenever you have a module followed by a variable on the same line in ansible the parser will treat the reference variable as the beginning of an in-line dictionary. For example:

- name: some example
  command: {{ myapp }} -a foo

The default here is to parse the first part of {{ myapp }} -a foo as a dictionary instead of a string and you will get an error.

So you must quote the argument like so:

- name: some example
  command: "{{ myapp }} -a foo"

You were almost done without any changes besides how you spyOn. When you use the spy, you have two options: spyOn the App.prototype, or component component.instance().

const spy = jest.spyOn(Class.prototype, "method")

The order of attaching the spy on the class prototype and rendering (shallow rendering) your instance is important.

const spy = jest.spyOn(App.prototype, "myClickFn");
const instance = shallow(<App />);

The App.prototype bit on the first line there are what you needed to make things work. A JavaScript class doesn't have any of its methods until you instantiate it with new MyClass(), or you dip into the MyClass.prototype. For your particular question, you just needed to spy on the App.prototype method myClickFn.

jest.spyOn(component.instance(), "method")

const component = shallow(<App />);
const spy = jest.spyOn(component.instance(), "myClickFn");

This method requires a shallow/render/mount instance of a React.Component to be available. Essentially spyOn is just looking for something to hijack and shove into a jest.fn(). It could be:

A plain object:

const obj = {a: x => (true)};
const spy = jest.spyOn(obj, "a");

A class:

class Foo {
    bar() {}
}

const nope = jest.spyOn(Foo, "bar");
// THROWS ERROR. Foo has no "bar" method.
// Only an instance of Foo has "bar".
const fooSpy = jest.spyOn(Foo.prototype, "bar");
// Any call to "bar" will trigger this spy; prototype or instance

const fooInstance = new Foo();
const fooInstanceSpy = jest.spyOn(fooInstance, "bar");
// Any call fooInstance makes to "bar" will trigger this spy.

Or a React.Component instance:

const component = shallow(<App />);
/*
component.instance()
-> {myClickFn: f(), render: f(), ...etc}
*/
const spy = jest.spyOn(component.instance(), "myClickFn");

Or a React.Component.prototype:

/*
App.prototype
-> {myClickFn: f(), render: f(), ...etc}
*/
const spy = jest.spyOn(App.prototype, "myClickFn");
// Any call to "myClickFn" from any instance of App will trigger this spy.

I've used and seen both methods. When I have a beforeEach() or beforeAll() block, I might go with the first approach. If I just need a quick spy, I'll use the second. Just mind the order of attaching the spy.

EDIT: If you want to check the side effects of your myClickFn you can just invoke it in a separate test.

const app = shallow(<App />);
app.instance().myClickFn()
/*
Now assert your function does what it is supposed to do...
eg.
expect(app.state("foo")).toEqual("bar");
*/

EDIT: Here is an example of using a functional component. Keep in mind that any methods scoped within your functional component are not available for spying. You would be spying on function props passed into your functional component and testing the invocation of those. This example explores the use of jest.fn() as opposed to jest.spyOn, both of which share the mock function API. While it does not answer the original question, it still provides insight on other techniques that could suit cases indirectly related to the question.

function Component({ myClickFn, items }) {
   const handleClick = (id) => {
       return () => myClickFn(id);
   };
   return (<>
       {items.map(({id, name}) => (
           <div key={id} onClick={handleClick(id)}>{name}</div>
       ))}
   </>);
}

const props = { myClickFn: jest.fn(), items: [/*...{id, name}*/] };
const component = render(<Component {...props} />);
// Do stuff to fire a click event
expect(props.myClickFn).toHaveBeenCalledWith(/*whatever*/);

Use format with no parameters:

var date = moment();
date.format(); // "2014-09-08T08:02:17-05:00"

(http://jsfiddle.net/8gvhL1dz/)

Why not have a setSize method.

A* arrayOfAs = new A[5];
for (int i = 0; i < 5; ++i)
{
    arrayOfAs[i].SetSize(3);
}

I like the "copy" but in this case the default constructor isn't really doing anything. The SetSize could copy the data out of the original m_array (if it exists).. You'd have to store the size of the array within the class to do that.
OR
The SetSize could delete the original m_array.

void SetSize(unsigned int p_newSize)
{
    //I don't care if it's null because delete is smart enough to deal with that.
    delete myArray;
    myArray = new int[p_newSize];
    ASSERT(myArray);
}

In the MSDN blog post Many Questions: switch on type is some information on why .NET does not provide switching on types.

As usual - workarounds always exists.

This one isn't mine, but unfortunately I have lost the source. It makes switching on types possible, but I personally think it's quite awkward (the dictionary idea is better):

  public class Switch
  {
      public Switch(Object o)
      {
          Object = o;
      }

      public Object Object { get; private set; }
  }


  /// <summary>
  /// Extensions, because otherwise casing fails on Switch==null
  /// </summary>
  public static class SwitchExtensions
  {
      public static Switch Case<T>(this Switch s, Action<T> a)
            where T : class
      {
          return Case(s, o => true, a, false);
      }

      public static Switch Case<T>(this Switch s, Action<T> a,
           bool fallThrough) where T : class
      {
          return Case(s, o => true, a, fallThrough);
      }

      public static Switch Case<T>(this Switch s,
          Func<T, bool> c, Action<T> a) where T : class
      {
          return Case(s, c, a, false);
      }

      public static Switch Case<T>(this Switch s,
          Func<T, bool> c, Action<T> a, bool fallThrough) where T : class
      {
          if (s == null)
          {
              return null;
          }

          T t = s.Object as T;
          if (t != null)
          {
              if (c(t))
              {
                  a(t);
                  return fallThrough ? s : null;
              }
          }

          return s;
      }
  }

Usage:

 new Switch(foo)
     .Case<Fizz>
         (action => { doingSomething = FirstMethodCall(); })
     .Case<Buzz>
         (action => { return false; })

You can create bitmap with captured image as below:

Bitmap bitmap = Bitmap.createScaledBitmap(capturedImage, width, height, true);

Here you can specify width and height of the bitmap that you want to set to your ImageView. The height and width you can set according to the screen dpi of the device also, by reading the screen dpi of different devices programmatically.

Try this:

String numberStr = "3.5";
Float number = null;
try {
   number = Float.parseFloat(numberStr);
} catch (NumberFormatException e) {
    System.out.println("numberStr is not a number");
}

var array = []
    $("input:checkbox[name=type]:checked").each(function(){
        array.push($(this).val());
    });

Readability can be improved by static factory methods:

Compare

public class Foo{
  public Foo(boolean withBar){
    //...
  }
}

//...

// What exactly does this mean?
Foo foo = new Foo(true);
// You have to lookup the documentation to be sure.
// Even if you remember that the boolean has something to do with a Bar
// you might not remember whether it specified withBar or withoutBar.

to

public class Foo{
  public static Foo createWithBar(){
    //...
  }

  public static Foo createWithoutBar(){
    //...
  }
}

// ...

// This is much easier to read!
Foo foo = Foo.createWithBar();

Go to build path... delete existing maven library u added... click add library ... click maven managed dependencies... then click maven project settings... check resolve maven dependencies check box..it'll download all maven dependencies

ENV['RAILS_ENV'] is now deprecated.

You should use Rails.env which is clearly much nicer.

For Google Chrome (Tested on ver. 62)

I was trying to keep a socket connection alive from the google chrome's fetch API to a remote express server and found the request headers have to match Node.JS's native <net.socket> connection settings.

I set the headers object on my client-side script with the following options:

/* ----- */
head = new headers();
head.append("Connnection", "keep-alive")
head.append("Keep-Alive", `timeout=${1*60*5}`) //in seconds, not milliseconds
/* apply more definitions to the header */
fetch(url, {
    method: 'OPTIONS',
    credentials: "include",
    body: JSON.stringify(data),
    cors: 'cors',
    headers: head, //could be object literal too
    cache: 'default'
 })
 .then(response=>{
    ....
  }).catch(err=>{...});

And on my express server I setup my router as follows:

 router.head('absolute or regex', (request, response, next)=>{
  req.setTimeout(1000*60*5, ()=>{
     console.info("socket timed out");
   });
  console.info("Proceeding down the middleware chain link...\n\n");
  next();
 });

 /*Keep the socket alive by enabling it on the server, with an optional 
  delay on the last packet sent 
 */
server.on('connection', (socket)=>socket.setKeepAlive(true, 10))

WARNING

Please use common sense and make sure the users you're keeping the socket connection open to is validated and serialized. It works for Firefox as well, but it's really vulnerable if you keep the TCP connection open for longer than 5 minutes.

I'm not sure how some of the lesser known browsers operate, but I'll append to this answer with the Microsoft browser details as well.

The code above exports data without the heading columns which is weird. Here's how to do it. You have to merge the two files later though using text a editor.

SELECT column_name FROM information_schema.columns WHERE table_schema = 'my_app_db' AND table_name = 'customers' INTO OUTFILE 'C:/ProgramData/MySQL/MySQL Server 5.6/Uploads/customers_heading_cols.csv' FIELDS TERMINATED BY '' OPTIONALLY ENCLOSED BY '"' LINES TERMINATED BY ',';

You can pass it as Action<string> - which means it is a method with a single parameter of type string that doesn't return anything (void) :

public void DoRequest(string request, Action<string> callback)
{
    // do stuff....
    callback("asdf");
}

<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">

<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="@drawable/title_bar_background">

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:gravity="center"
    android:textAppearance="?android:attr/textAppearanceLarge"
    android:padding="10dp"
    android:text="HELLO WORLD" />

</LinearLayout>

As I was saying in this question, I'd suggest you avoid redirecting all HTTP requests to their HTTPS equivalent blindly, as it may cause you a false impression of security. Instead, you should probably redirect the "root" of your HTTP site to the root of your HTTPS site and link from there, only to HTTPS.

The problem is that if some link or form on the HTTPS site makes the client send a request to the HTTP site, its content will be visible, before the redirection.

For example, if one of your pages served over HTTPS has a form that says <form action="http://example.com/doSomething"> and sends some data that shouldn't be sent in clear, the browser will first send the full request (including entity, if it's a POST) to the HTTP site first. The redirection will be sent immediately to the browser and, since a large number of users disable or ignore the warnings, it's likely to be ignored.

Of course, the mistake of providing the links that should be to the HTTPS site but that end up being for the HTTP site may cause problems as soon as you get something listening on the HTTP port on the same IP address as your HTTPS site. However, I think keeping the two sites as a "mirror" only increases the chances of making mistakes, as you may tend to make the assumption that it will auto-correct itself by redirecting the user to HTTPS, whereas it's often too late. (There were similar discussions in this question.)

How does spring know which polymorphic type to use.

As long as there is only a single implementation of the interface and that implementation is annotated with @Component with Spring's component scan enabled, Spring framework can find out the (interface, implementation) pair. If component scan is not enabled, then you have to define the bean explicitly in your application-config.xml (or equivalent spring configuration file).

Do I need @Qualifier or @Resource?

Once you have more than one implementation, then you need to qualify each of them and during auto-wiring, you would need to use the @Qualifier annotation to inject the right implementation, along with @Autowired annotation. If you are using @Resource (J2EE semantics), then you should specify the bean name using the name attribute of this annotation.

Why do we autowire the interface and not the implemented class?

Firstly, it is always a good practice to code to interfaces in general. Secondly, in case of spring, you can inject any implementation at runtime. A typical use case is to inject mock implementation during testing stage.

interface IA
{
  public void someFunction();
}


class B implements IA
{
  public void someFunction()
  {
    //busy code block
  }
  public void someBfunc()
  {
     //doing b things
  }
}


class C implements IA
{
  public void someFunction()
  {
    //busy code block
  }
  public void someCfunc()
  {
     //doing C things
  }
}

class MyRunner
{
     @Autowire
     @Qualifier("b") 
     IA worker;

     ....
     worker.someFunction();
}

Your bean configuration should look like this:

<bean id="b" class="B" />
<bean id="c" class="C" />
<bean id="runner" class="MyRunner" />

Alternatively, if you enabled component scan on the package where these are present, then you should qualify each class with @Component as follows:

interface IA
{
  public void someFunction();
}

@Component(value="b")
class B implements IA
{
  public void someFunction()
  {
    //busy code block
  }
  public void someBfunc()
  {
     //doing b things
  }
}


@Component(value="c")
class C implements IA
{
  public void someFunction()
  {
    //busy code block
  }
  public void someCfunc()
  {
     //doing C things
  }
}

@Component    
class MyRunner
{
     @Autowire
     @Qualifier("b") 
     IA worker;

     ....
     worker.someFunction();
}

Then worker in MyRunner will be injected with an instance of type B.

I use a personnal blend of the phantomjs waitfor.js example.

This is my main.js file:

'use strict';

var wasSuccessful = phantom.injectJs('./lib/waitFor.js');
var page = require('webpage').create();

page.open('http://foo.com', function(status) {
  if (status === 'success') {
    page.includeJs('https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js', function() {
      waitFor(function() {
        return page.evaluate(function() {
          if ('complete' === document.readyState) {
            return true;
          }

          return false;
        });
      }, function() {
        var fooText = page.evaluate(function() {
          return $('#foo').text();
        });

        phantom.exit();
      });
    });
  } else {
    console.log('error');
    phantom.exit(1);
  }
});

And the lib/waitFor.js file (which is just a copy and paste of the waifFor() function from the phantomjs waitfor.js example):

function waitFor(testFx, onReady, timeOutMillis) {
    var maxtimeOutMillis = timeOutMillis ? timeOutMillis : 3000, //< Default Max Timout is 3s
        start = new Date().getTime(),
        condition = false,
        interval = setInterval(function() {
            if ( (new Date().getTime() - start < maxtimeOutMillis) && !condition ) {
                // If not time-out yet and condition not yet fulfilled
                condition = (typeof(testFx) === "string" ? eval(testFx) : testFx()); //< defensive code
            } else {
                if(!condition) {
                    // If condition still not fulfilled (timeout but condition is 'false')
                    console.log("'waitFor()' timeout");
                    phantom.exit(1);
                } else {
                    // Condition fulfilled (timeout and/or condition is 'true')
                    // console.log("'waitFor()' finished in " + (new Date().getTime() - start) + "ms.");
                    typeof(onReady) === "string" ? eval(onReady) : onReady(); //< Do what it's supposed to do once the condi>
                    clearInterval(interval); //< Stop this interval
                }
            }
        }, 250); //< repeat check every 250ms
}

This method is not asynchronous but at least am I assured that all the resources were loaded before I try using them.

Changes all spaces to tab :%s/\s/\t/g

Obfuscation is only adding another layer of potential bugs and security vulnerabilities to your program. Please don't do it.

The kind of people who write obfuscation software usually seem very sketchy and non-skilled anyway.

If your code is "great", crackers will go through great lengths to spread it, regardless of whether or not it is obfuscated. If nobody knows/cares about your code, they probably won't, either.

It is not only the table cell which is growing, the table itself can grow, too. To avoid this you can assign a fixed width to the table which in return forces the cell width to be respected:

table {
  table-layout: fixed;
  width: 120px; /* Important */
}
td {
  width: 30px;
}

(Using overflow: hidden and/or text-overflow: ellipsis is optional but highly recommended for a better visual experience)

So if your situation allows you to assign a fixed width to your table, this solution might be a better alternative to the other given answers (which do work with or without a fixed width)

The big difference is perfectly explained here.

Basically, lightweight tags are just pointers to specific commits. No further information is saved; on the other hand, annotated tags are regular objects, which have an author and a date and can be referred because they have their own SHA key.

If knowing who tagged what and when is relevant for you, then use annotated tags. If you just want to tag a specific point in your development, no matter who and when did that, then lightweight tags are good enough.

Normally you'd go for annotated tags, but it is really up to the Git master of the project.

This might be possible that your view is present even though it shows the error. So to solve this issue you need to stop the server and run this command on the terminal.

php artisan config:cache

then restart the server

Ryan's Solution @Ryan in swift code

use:

 func imageWithSize(image: UIImage,size: CGSize)->UIImage{
    if UIScreen.mainScreen().respondsToSelector("scale"){
        UIGraphicsBeginImageContextWithOptions(size,false,UIScreen.mainScreen().scale);
    }
    else
    {
         UIGraphicsBeginImageContext(size);
    }

    image.drawInRect(CGRectMake(0, 0, size.width, size.height));
    var newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return newImage;
}

//Summon this function VVV
func resizeImageWithAspect(image: UIImage,scaledToMaxWidth width:CGFloat,maxHeight height :CGFloat)->UIImage
{
    let oldWidth = image.size.width;
    let oldHeight = image.size.height;

    let scaleFactor = (oldWidth > oldHeight) ? width / oldWidth : height / oldHeight;

    let newHeight = oldHeight * scaleFactor;
    let newWidth = oldWidth * scaleFactor;
    let newSize = CGSizeMake(newWidth, newHeight);

    return imageWithSize(image, size: newSize);
}

Robert Rossney has a good solution. Here's an alternative solution I've used in the past that separates out the "Overlay" from the rest of the content. This solution takes advantage of the attached property Panel.ZIndex to place the "Overlay" on top of everything else. You can either set the Visibility of the "Overlay" in code or use a DataTrigger.

<Grid x:Name="LayoutRoot">

 <Grid x:Name="Overlay" Panel.ZIndex="1000" Visibility="Collapsed">
    <Grid.Background>
      <SolidColorBrush Color="Black" Opacity=".5"/>
    </Grid.Background>

    <!-- Add controls as needed -->
  </Grid>

  <!-- Use whatever layout you need -->
  <ContentControl x:Name="MainContent" />

</Grid>

set.seed is a base function that it is able to generate (every time you want) together other functions (rnorm, runif, sample) the same random value.

Below an example without set.seed

> set.seed(NULL)
> rnorm(5)
[1]  1.5982677 -2.2572974  2.3057461  0.5935456  0.1143519
> rnorm(5)
[1]  0.15135371  0.20266228  0.95084266  0.09319339 -1.11049182
> set.seed(NULL)
> runif(5)
[1] 0.05697712 0.31892399 0.92547023 0.88360393 0.90015169
> runif(5)
[1] 0.09374559 0.64406494 0.65817582 0.30179009 0.19760375
> set.seed(NULL)
> sample(5)
[1] 5 4 3 1 2
> sample(5)
[1] 2 1 5 4 3

Below an example with set.seed

> set.seed(123)
> rnorm(5)
[1] -0.56047565 -0.23017749  1.55870831  0.07050839  0.12928774
> set.seed(123)
> rnorm(5)
[1] -0.56047565 -0.23017749  1.55870831  0.07050839  0.12928774
> set.seed(123)
> runif(5)
[1] 0.2875775 0.7883051 0.4089769 0.8830174 0.9404673
> set.seed(123)
> runif(5)
[1] 0.2875775 0.7883051 0.4089769 0.8830174 0.9404673
> set.seed(123)
> sample(5)
[1] 3 2 5 4 1
> set.seed(123)
> sample(5)
[1] 3 2 5 4 1

Live Plotting

import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 2 * np.pi, 100)
# plt.axis([x[0], x[-1], -1, 1])      # disable autoscaling
for point in x:
    plt.plot(point, np.sin(2 * point), '.', color='b')
    plt.draw()
    plt.pause(0.01)
# plt.clf()                           # clear the current figure

if the amount of data is too much you can lower the update rate with a simple counter

cnt += 1
if (cnt == 10):       # update plot each 10 points
    plt.draw()
    plt.pause(0.01)
    cnt = 0

Holding Plot after Program Exit

This was my actual problem that couldn't find satisfactory answer for, I wanted plotting that didn't close after the script was finished (like MATLAB),

If you think about it, after the script is finished, the program is terminated and there is no logical way to hold the plot this way, so there are two options

1. block the script from exiting (that's plt.show() and not what I want)
2. run the plot on a separate thread (too complicated)

this wasn't satisfactory for me so I found another solution outside of the box

SaveToFile and View in external viewer

For this the saving and viewing should be both fast and the viewer shouldn't lock the file and should update the content automatically

Selecting Format for Saving

vector based formats are both small and fast

• SVG is good but coudn't find good viewer for it except the web browser which by default needs manual refresh
• PDF can support vector formats and there are lightweight viewers which support live updating

Fast Lightweight Viewer with Live Update

For PDF there are several good options

• On Windows I use SumatraPDF which is free, fast and light (only uses 1.8MB RAM for my case)

• On Linux there are several options such as Evince (GNOME) and Ocular (KDE)

Sample Code & Results

Sample code for outputing plot to a file

import numpy as np
import matplotlib.pyplot as plt

x = np.linspace(0, 2 * np.pi, 100)
y = np.sin(2 * x)
plt.plot(x, y)
plt.savefig("fig.pdf")

after first run, open the output file in one of the viewers mentioned above and enjoy.

Here is a screenshot of VSCode alongside SumatraPDF, also the process is fast enough to get semi-live update rate (I can get near 10Hz on my setup just use time.sleep() between intervals)

If you are using nodejs try:

require('net').isIP('10.0.0.1')

doc net.isIP()

Generic:

ALTER TABLE table_name DROP COLUMN column_name;

In your case:

ALTER TABLE MEN DROP COLUMN Lname;

In a Spring Boot app, I used the following to get the file URL,

Thread.currentThread().getContextClassLoader().getResource("PromotionalOfferIdServiceV2.wsdl")

structure is collection of different data type where different type of data can reside in it and every one get its own block of memory

we usually used union when we sure that only one of the variable will be used at once and you want fully utilization of present memory because it get only one block of memory which is equal to the biggest type.

struct emp
{
    char x;//1 byte
    float y; //4 byte
} e;

total memory it get =>5 byte

union emp
{
    char x;//1 byte
    float y; //4 byte
} e;

total memory it get =4 byte

I know this is old, but now Underscore has a new map for objects :

_.mapObject(object, iteratee, [context]) 

You can of course build a flexible map for both arrays and objects

_.fmap = function(arrayOrObject, fn, context){
    if(this.isArray(arrayOrObject))
      return _.map(arrayOrObject, fn, context);
    else
      return _.mapObject(arrayOrObject, fn, context);
}

Reason is to have some value other than zero. General practice to have it short globally and long for long working scripts like parsers, crawlers, dumpers, exporting & importing scripts etc.

1. You can halt server, corrupt work of other people by memory consuming script without even knowing it.
2. You will not be seeing mistakes where something, let's say, infinite loop happened, and it will be harder to diagnose.
3. Such site may be easily DoSed by single user, when requesting pages with long execution time

To add to Matt wilson's answer I had a bunch of code-first entity classes but no database as I hadn't taken a backup. So I did the following on my Entity Framework project:

Open Package Manager console in Visual Studio and type the following:

Enable-Migrations

Add-Migration

Give your migration a name such as 'Initial' and then create the migration. Finally type the following:

Update-Database

Update-Database -Script -SourceMigration:0

The final command will create your database tables from your entity classes (provided your entity classes are well formed).

Handling the input event is a consistent solution: it is supported for textarea and input elements in all contemporary browsers and it fires exactly when you need it:

function edValueKeyPress() {
    var edValue = document.getElementById("edValue");
    var s = edValue.value;

    var lblValue = document.getElementById("lblValue");
    lblValue.innerText = "The text box contains: " + s;
}

<input id="edValue" type="text" onInput="edValueKeyPress()"><br>
<span id="lblValue">The text box contains: </span>

I'd rewrite this a bit, though:

function showCurrentValue(event)
{
    const value = event.target.value;
    document.getElementById("label").innerText = value;
}

<input type="text" onInput="showCurrentValue(event)"><br>
The text box contains: <span id="label"></span>

I'm using the minimum image size (200 x 200) and getting good results. Take a look:

https://developers.facebook.com/tools/debug/og/object?q=origgami.com.br

This squared size is better than rectangles because it is the format that appears on facebook comments. The rectangle format gets cropped.

This size is on facebook documentation

Note: In case you wish to use the already-mentioned algo for cases where you need to replace huge number of instances in the source string (e.g. new lines in long text) there is high probability you'll end up with StackOverflowException because of the recursive call.

I resolved this issue thanks to Xalan's (didn't look how to do it in Saxon) built-in Java type embedding:

<xsl:stylesheet version="1.0" exclude-result-prefixes="xalan str"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:xalan="http://xml.apache.org/xalan"
                xmlns:str="xalan://java.lang.String"
        >
...
<xsl:value-of select="str:replaceAll(
    str:new(text()),
    $search_string,
    $replace_string)"/>
...
</xsl:stylesheet>

In my case when I get this message IE suggest me to install add-on from Microsoft. After install problem solved.

My software:
IE9 but work also on older
SQL SERVER 2008 R2

You should store your images, css and JS files in a public directory. To create a link to any of them, use asset() helper:

{{ asset('img/myimage.png') }}

https://laravel.com/docs/5.1/helpers#method-asset

As alternative, you could use amazing Laravel Collective package for building forms and HTML elements, so your code will look like this:

{{ HTML::image('img/myimage.png', 'a picture') }}

Use Polly

https://github.com/App-vNext/Polly-Samples

Here is a retry-generic I use with Polly

public T Retry<T>(Func<T> action, int retryCount = 0)
{
    PolicyResult<T> policyResult = Policy
     .Handle<Exception>()
     .Retry(retryCount)
     .ExecuteAndCapture<T>(action);

    if (policyResult.Outcome == OutcomeType.Failure)
    {
        throw policyResult.FinalException;
    }

    return policyResult.Result;
}

Use it like this

var result = Retry(() => MyFunction()), 3);

I ran into this and while I had the og:image (and others), I was missing og:url and og:type, so I added those and then it worked.

<meta property="og:url" content="<? 
 $url = 'https://' . $_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']."?".$_SERVER['QUERY_STRING'];; 
echo htmlentities($url,ENT_QUOTES); ?>"/> 

In Rails 4.1.0, I have faced problem with saving latitude and longitude to MySql database. It can't save large fraction number with float data type. And I change the data type to decimal and working for me.

  def change
    change_column :cities, :latitude, :decimal, :precision => 15, :scale => 13
    change_column :cities, :longitude, :decimal, :precision => 15, :scale => 13
  end

Use max():

 
Using itemgetter():

In [53]: lis=[(101, 153), (255, 827), (361, 961)]

In [81]: from operator import itemgetter

In [82]: max(lis,key=itemgetter(1))[0]    #faster solution
Out[82]: 361

using lambda:

In [54]: max(lis,key=lambda item:item[1])
Out[54]: (361, 961)

In [55]: max(lis,key=lambda item:item[1])[0]
Out[55]: 361

timeit comparison:

In [30]: %timeit max(lis,key=itemgetter(1))
1000 loops, best of 3: 232 us per loop

In [31]: %timeit max(lis,key=lambda item:item[1])
1000 loops, best of 3: 556 us per loop

I know you're interested in Integer numbers so I won't re answer that but if you ever wanted to check for Floating Point numbers you could do this.

function isFloat( x )
{
    return ( typeof x === "number" && Math.abs( x % 1 ) > 0);
}

Note: This MAY treat numbers ending in .0 (or any logically equivalent number of 0's) as an INTEGER. It actually needs a floating point precision error to occur to detect the floating point values in that case.

Ex.

alert(isFloat(5.2));   //returns true
alert(isFloat(5));     //returns false
alert(isFloat(5.0));   //return could be either true or false

1. Download the package
2. unzip it if it is zipped
3. cd into the directory containing setup.py
4. If there are any installation instructions contained in documentation contianed herein, read and follow the instructions OTHERWISE
5. type in python setup.py install

You may need administrator privileges for step 5. What you do here thus depends on your operating system. For example in Ubuntu you would say sudo python setup.py install

EDIT- thanks to kwatford (see first comment)

To bypass the need for administrator privileges during step 5 above you may be able to make use of the --user flag. In this way you can install the package only for the current user.

The docs say:

Files will be installed into subdirectories of site.USER_BASE (written as userbase hereafter). This scheme installs pure Python modules and extension modules in the same location (also known as site.USER_SITE). Here are the values for UNIX, including Mac OS X:

More details can be found here: http://docs.python.org/2.7/install/index.html

This whole setup seems a little unstable to me.

Talk to the ffmpegx folks about having a GUI front-end over a command-line backend. It doesn't seem to bother them.

Indeed, I submit that a GUI (or web) front-end over a command-line backend is actually more stable, since you have a very, very clean interface between GUI and command. The command can evolve at a different pace from the web, as long as the command-line options are compatible, you have no possibility of breakage.