current=old or old=current makes the two array refer to the same thing, so if you subsequently modify current, old will be modified too. To copy the content of an array to another array, use the for loop

for(int i=0; i<old.length; i++)
  for(int j=0; j<old[i].length; j++)
    old[i][j]=current[i][j];

PS: For a one-dimensional array, you can avoid creating your own for loop by using Arrays.copyOf

There is really no universal maximum URL length. The max length is determined only by what the client browser chooses to support, which varies widely. The 2,083 limit is only present in Internet Explorer (all versions up to 7.0). The max length in Firefox and Safari seems to be unlimited, although instability occurs with URLs reaching around 65,000 characters. Opera seems to have no max URL length whatsoever, and doesn't suffer instability at extremely long lengths.

Edit your Run/Debug Configuration so that Build option is selected before launching

After Build option is selected

The above solution worked for me while working on my JBehave test suite

I only know that when we call session.flush() our statements are execute in database but not committed.

Suppose we don't call flush() method on session object and if we call commit method it will internally do the work of executing statements on the database and then committing.

commit=flush+commit (in case of functionality)

Thus, I conclude that when we call method flush() on Session object, then it doesn't get commit but hits the database and executes the query and gets rollback too.

In order to commit we use commit() on Transaction object.

Even adding responseType, I dealt with it for days with no success. Finally I got it. Make sure that in your backend script you don't define header as -("Content-Type: application/json);

Becuase if you turn it to text but backend asks for json, it will return an error...

We can append or prepend two lists or list&array
Append:

var l = List(1,2,3)    
l = l :+ 4 
Result : 1 2 3 4  
var ar = Array(4, 5, 6)    
for(x <- ar)    
{ l = l :+ x }  
  l.foreach(println)

Result:1 2 3 4 5 6

Prepending:

var l = List[Int]()  
   for(x <- ar)  
    { l= x :: l } //prepending    
     l.foreach(println)   

Result:6 5 4 1 2 3

String str = new String("SOME")

always create a new object on the heap

String str="SOME" 

uses the String pool

Try this small example:

        String s1 = new String("hello");
        String s2 = "hello";
        String s3 = "hello";

        System.err.println(s1 == s2);
        System.err.println(s2 == s3);

To avoid creating unnecesary objects on the heap use the second form.

    Intent in = new Intent(getApplicationContext(),SecondaryScreen.class);    
    startActivity(in);

    This is an explicit intent to start secondscreen activity.

Here are the complete steps after reading many answers here

How to set up Multiple SSH Keys settings for different github account

You might want to start checking your currently saved keys

$ ssh-add -l

If you decide to delete all cached keys before (optional, carefull about this)

$ ssh-add -D

Then you can create a ssh pub/priv key linked to each email/account that you wish/need to use

$ cd ~/.ssh
$ ssh-keygen -t rsa -C "[email protected]" <-- save it as "id_rsa_work"
$ ssh-keygen -t rsa -C "[email protected]" <-- save it as "id_rsa_pers"

After performing this commands you will have the following files created

~/.ssh/id_rsa_work      
~/.ssh/id_rsa_work.pub

~/.ssh/id_rsa_pers
~/.ssh/id_rsa_pers.pub 

Make sure authentication agent is running

$ eval `ssh-agent -s`

Add the generated keys as following (from the ~/.ssh folder)

$ ssh-add id_rsa_work
$ ssh-add id_rsa_pers

Now you can check your saved keys again

$ ssh-add -l

Now you need to add the generated public keys to your github/bickbuket server Acces Keys

Clone each of the repos to different folders

Go to the folder where the user work will work and execute this

$ git config user.name "Working Hard"
$ git config user.email "[email protected]" 

Just to see what this does check the contents of the ".git/config"

Go to the folder where the user pers will work and execute this

$ git config user.name "Personal Account"
$ git config user.email "[email protected]" 

Just to see what this does check the contents of the ".git/config"

After all this you will be able to commit your personal and work code by just switching between those two folders

In case you are using Git Bash and need to generate ssh keys under Windows follow this steps:

https://support.automaticsync.com/hc/en-us/articles/202357115-Generating-an-SSH-Key-on-Windows

I found that the following worked for me. These steps come from BTD's YouTube video, Managing Zipfile's in R:

zip.url <- "url_address.zip"

dir <- getwd()

zip.file <- "file_name.zip"

zip.combine <- as.character(paste(dir, zip.file, sep = "/"))

download.file(zip.url, destfile = zip.combine)

unzip(zip.file)

JSON (= JavaScript Object Notation), is a lightweight and fast mechanism to convert Javascript objects into a string and vice versa.

Since Javascripts objects consists of key/value pairs its very easy to use and access JSON that way.

So if we have an object:

var myObj = {
    foo:   'bar',
    base:  'ball',
    deep:  {
       java:  'script'
    }
};

We can convert that into a string by calling window.JSON.stringify(myObj); with the result of "{"foo":"bar","base":"ball","deep":{"java":"script"}}".

The other way around, we would call window.JSON.parse("a json string like the above");.

JSON.parse() returns a javascript object/array on success.

alert(myObj.deep.java);  // 'script'

window.JSON is not natively available in all browser. Some "older" browser need a little javascript plugin which offers the above mentioned functionality. Check http://www.json.org for further information.

Use Thread.currentThread().isAlive() to see if the thread is alive[output should be true] which means thread is still running the code inside the run() method or use Thread.currentThread.getState() method to get the exact state of the thread.

In Java 1.7+

Do not use "UTF-8" string, instead use Charset type parameter:

import java.nio.charset.StandardCharsets

...

new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8);

as per @cyberbikepunk answer pycharm supports Anaconda since pycharm5!

Have a look how easy is to add an environment:

This should get you started:

log4j.rootLogger=QuietAppender, LoudAppender, TRACE
# setup A1
log4j.appender.QuietAppender=org.apache.log4j.RollingFileAppender
log4j.appender.QuietAppender.Threshold=INFO
log4j.appender.QuietAppender.File=quiet.log
...


# setup A2
log4j.appender.LoudAppender=org.apache.log4j.RollingFileAppender
log4j.appender.LoudAppender.Threshold=DEBUG
log4j.appender.LoudAppender.File=loud.log
...

log4j.logger.com.yourpackage.yourclazz=TRACE

You could try using a Polyfill. The following Polyfill was published in 2019 and did the trick for me. It assigns the Promise function to the window object.

used like: window.Promise https://www.npmjs.com/package/promise-polyfill

If you want more information on Polyfills check out the following MDN web doc https://developer.mozilla.org/en-US/docs/Glossary/Polyfill

NetHogs is probably what you're looking for:

a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process.

NetHogs does not rely on a special kernel module to be loaded. If there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this. This makes it easy to identify programs that have gone wild and are suddenly taking up your bandwidth.

Since NetHogs heavily relies on /proc, most features are only available on Linux. NetHogs can be built on Mac OS X and FreeBSD, but it will only show connections, not processes...

I use hebrew(RTL language) in strings.xml. I have manually searched the string.xml for this char: ' than I added the escape char \ infront of it (now it looks like \' ) and still got the same error!

I searched again for the char ' and I replaced the char ' with \'(eng writing) , since it shows a right to left it looks like that '\ in the strings.xml !!

Problem solved.

[What you have is just an object, not a "json-object". JSON is a textual notation. What you've quoted is JavaScript code using an array initializer and an object initializer (aka, "object literal syntax").]

If you can rely on having ECMAScript5 features available, you can use the Object.keys function to get an array of the keys (property names) in an object. All modern browsers have Object.keys (including IE9+).

Object.keys(jsonData).forEach(function(key) {
    var value = jsonData[key];
    // ...
});

The rest of this answer was written in 2011. In today's world, A) You don't need to polyfill this unless you need to support IE8 or earlier (!), and B) If you did, you wouldn't do it with a one-off you wrote yourself or grabbed from an SO answer (and probably shouldn't have in 2011, either). You'd use a curated polyfill, possibly from es5-shim or via a transpiler like Babel that can be configured to include polyfills (which may come from es5-shim).

Here's the rest of the answer from 2011:

Note that older browsers won't have it. If not, this is one of the ones you can supply yourself:

if (typeof Object.keys !== "function") {
    (function() {
        var hasOwn = Object.prototype.hasOwnProperty;
        Object.keys = Object_keys;
        function Object_keys(obj) {
            var keys = [], name;
            for (name in obj) {
                if (hasOwn.call(obj, name)) {
                    keys.push(name);
                }
            }
            return keys;
        }
    })();
}

That uses a for..in loop (more info here) to loop through all of the property names the object has, and uses Object.prototype.hasOwnProperty to check that the property is owned directly by the object rather than being inherited.

(I could have done it without the self-executing function, but I prefer my functions to have names, and to be compatible with IE you can't use named function expressions [well, not without great care]. So the self-executing function is there to avoid having the function declaration create a global symbol.)

Web Developers use javascript:void(0) because it is the easiest way to prevent the default behavior of a tag. void(*anything*) returns undefined and it is a falsy value. and returning a falsy value is like return false in onclick event of a tag that prevents its default behavior.

So I think javascript:void(0) is the simplest way to prevent the default behavior of a tag.

A C++ identifier is a name used to identify a variable, function, class, module, or any other user-defined item. In C++ all names have to be declared before they are used. If you try to use the name of a such that hasn't been declared you will get an "undeclared identifier" compile-error.

According to the documentation, the declaration of printf() is in cstdio i.e. you have to include it, before using the function.

$count = DB::table('category_issue')->count();

will give you the number of items.

For more detailed information check Fluent Query Builder section in beautiful Laravel Documentation.

I use :

int convertToInt(char a[1000]){
    int i = 0;
    int num = 0;
    while (a[i] != 0)
    {
        num =  (a[i] - '0')  + (num * 10);
        i++;
    }
    return num;;
}

1) Your existing web.config: you have declared rewrite map .. but have not created any rules that will use it. RewriteMap on its' own does absolutely nothing.

2) Below is how you can do it (it does not utilise rewrite maps -- rules only, which is fine for small amount of rewrites/redirects):

This rule will do SINGLE EXACT rewrite (internal redirect) /page to /page.html. URL in browser will remain unchanged.

<system.webServer>
    <rewrite>
        <rules>
            <rule name="SpecificRewrite" stopProcessing="true">
                <match url="^page$" />
                <action type="Rewrite" url="/page.html" />
            </rule>
        </rules>
    </rewrite>
</system.webServer>

This rule #2 will do the same as above, but will do 301 redirect (Permanent Redirect) where URL will change in browser.

<system.webServer>
    <rewrite>
        <rules>
            <rule name="SpecificRedirect" stopProcessing="true">
                <match url="^page$" />
                <action type="Redirect" url="/page.html" />
            </rule>
        </rules>
    </rewrite>
</system.webServer>

Rule #3 will attempt to execute such rewrite for ANY URL if there are such file with .html extension (i.e. for /page it will check if /page.html exists, and if it does then rewrite occurs):

<system.webServer>
    <rewrite>
        <rules>
            <rule name="DynamicRewrite" stopProcessing="true">
                <match url="(.*)" />
                <conditions>
                    <add input="{REQUEST_FILENAME}\.html" matchType="IsFile" />
                </conditions>
                <action type="Rewrite" url="/{R:1}.html" />
            </rule>
        </rules>
    </rewrite>
</system.webServer>

Using the ternary :? operator ^[spec].

var hasName = (name === 'true') ? 'Y' :'N';

The ternary operator lets us write shorthand if..else statements exactly like you want.

It looks like:

(name === 'true') - our condition

? - the ternary operator itself

'Y' - the result if the condition evaluates to true

'N' - the result if the condition evaluates to false

So in short (question)?(result if true):(result is false) , as you can see - it returns the value of the expression so we can simply assign it to a variable just like in the example above.

Double check if you are not able to use keys.

Otherwise use expect:

#!/usr/bin/expect -f
spawn ssh [email protected]
expect "assword:"
send "mypassword\r"
interact

The DateTime class takes a string in the constructor. If you prefix the timestamp with a @-character you create a DateTime object with the timestamp. For formating use the 'c' format ... a predefined ISO 8601 compound format.

If could use the DateTime class like this ... set the right timezone or leave it out if you want a UTC time.

$dt = new DateTime('@1333699439');
$dt->setTimezone(new DateTimeZone('America/New_York'));
echo $dt->format('c');

• https://www.php.net/manual/en/book.datetime.php
• https://www.php.net/manual/en/datetime.format.php
• more examples and timezones https://time.einfach.jetzt/?t=1333699439

for regular Joins, it doesn't. TableA join TableB will produce the same execution plan as TableB join TableA (so your C and D examples would be the same)

for left and right joins it does. TableA left Join TableB is different than TableB left Join TableA, BUT its the same than TableB right Join TableA

As already explained by the other contributers, you could print out the counter and then replace the return with a break statement.

N = int(input("enter a positive integer:"))
counter = 1
while (N > 0):
    counter = counter * N
    N = N - 1
    print(counter)
    break

Ref : Youtube Video Download (Android/Java)

private static final HashMap<String, Meta> typeMap = new HashMap<String, Meta>();

initTypeMap(); call first

class Meta {
    public String num;
    public String type;
    public String ext;

    Meta(String num, String ext, String type) {
        this.num = num;
        this.ext = ext;
        this.type = type;
    }
}

class Video {
    public String ext = "";
    public String type = "";
    public String url = "";

    Video(String ext, String type, String url) {
        this.ext = ext;
        this.type = type;
        this.url = url;
    }
}

public ArrayList<Video> getStreamingUrisFromYouTubePage(String ytUrl)
        throws IOException {
    if (ytUrl == null) {
        return null;
    }

    // Remove any query params in query string after the watch?v=<vid> in
    // e.g.
    // http://www.youtube.com/watch?v=0RUPACpf8Vs&feature=youtube_gdata_player
    int andIdx = ytUrl.indexOf('&');
    if (andIdx >= 0) {
        ytUrl = ytUrl.substring(0, andIdx);
    }

    // Get the HTML response
    /* String userAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:8.0.1)";*/
   /* HttpClient client = new DefaultHttpClient();
    client.getParams().setParameter(CoreProtocolPNames.USER_AGENT,
            userAgent);
    HttpGet request = new HttpGet(ytUrl);
    HttpResponse response = client.execute(request);*/
    String html = "";
    HttpsURLConnection c = (HttpsURLConnection) new URL(ytUrl).openConnection();
    c.setRequestMethod("GET");
    c.setDoOutput(true);
    c.connect();
    InputStream in = c.getInputStream();
    BufferedReader reader = new BufferedReader(new InputStreamReader(in));
    StringBuilder str = new StringBuilder();
    String line = null;
    while ((line = reader.readLine()) != null) {
        str.append(line.replace("\\u0026", "&"));
    }
    in.close();
    html = str.toString();

    // Parse the HTML response and extract the streaming URIs
    if (html.contains("verify-age-thumb")) {
        Log.e("Downloader", "YouTube is asking for age verification. We can't handle that sorry.");
        return null;
    }

    if (html.contains("das_captcha")) {
        Log.e("Downloader", "Captcha found, please try with different IP address.");
        return null;
    }

    Pattern p = Pattern.compile("stream_map\":\"(.*?)?\"");
    // Pattern p = Pattern.compile("/stream_map=(.[^&]*?)\"/");
    Matcher m = p.matcher(html);
    List<String> matches = new ArrayList<String>();
    while (m.find()) {
        matches.add(m.group());
    }

    if (matches.size() != 1) {
        Log.e("Downloader", "Found zero or too many stream maps.");
        return null;
    }

    String urls[] = matches.get(0).split(",");
    HashMap<String, String> foundArray = new HashMap<String, String>();
    for (String ppUrl : urls) {
        String url = URLDecoder.decode(ppUrl, "UTF-8");
        Log.e("URL","URL : "+url);

        Pattern p1 = Pattern.compile("itag=([0-9]+?)[&]");
        Matcher m1 = p1.matcher(url);
        String itag = null;
        if (m1.find()) {
            itag = m1.group(1);
        }

        Pattern p2 = Pattern.compile("signature=(.*?)[&]");
        Matcher m2 = p2.matcher(url);
        String sig = null;
        if (m2.find()) {
            sig = m2.group(1);
        } else {
            Pattern p23 = Pattern.compile("signature&s=(.*?)[&]");
            Matcher m23 = p23.matcher(url);
            if (m23.find()) {
                sig = m23.group(1);
            }
        }

        Pattern p3 = Pattern.compile("url=(.*?)[&]");
        Matcher m3 = p3.matcher(ppUrl);
        String um = null;
        if (m3.find()) {
            um = m3.group(1);
        }

        if (itag != null && sig != null && um != null) {
            Log.e("foundArray","Adding Value");
            foundArray.put(itag, URLDecoder.decode(um, "UTF-8") + "&"
                    + "signature=" + sig);
        }
    }
    Log.e("foundArray","Size : "+foundArray.size());
    if (foundArray.size() == 0) {
        Log.e("Downloader", "Couldn't find any URLs and corresponding signatures");
        return null;
    }


    ArrayList<Video> videos = new ArrayList<Video>();

    for (String format : typeMap.keySet()) {
        Meta meta = typeMap.get(format);

        if (foundArray.containsKey(format)) {
            Video newVideo = new Video(meta.ext, meta.type,
                    foundArray.get(format));
            videos.add(newVideo);
            Log.d("Downloader", "YouTube Video streaming details: ext:" + newVideo.ext
                    + ", type:" + newVideo.type + ", url:" + newVideo.url);
        }
    }

    return videos;
}

private class YouTubePageStreamUriGetter extends AsyncTask<String, String, ArrayList<Video>> {
    ProgressDialog progressDialog;

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressDialog = ProgressDialog.show(webViewActivity.this, "",
                "Connecting to YouTube...", true);
    }

    @Override
    protected ArrayList<Video> doInBackground(String... params) {
        ArrayList<Video> fVideos = new ArrayList<>();
        String url = params[0];
        try {
            ArrayList<Video> videos = getStreamingUrisFromYouTubePage(url);
            /*                Log.e("Downloader","Size of Video : "+videos.size());*/
            if (videos != null && !videos.isEmpty()) {
                for (Video video : videos)
                {
                    Log.e("Downloader", "ext : " + video.ext);
                    if (video.ext.toLowerCase().contains("mp4") || video.ext.toLowerCase().contains("3gp") || video.ext.toLowerCase().contains("flv") || video.ext.toLowerCase().contains("webm")) {
                        ext = video.ext.toLowerCase();
                        fVideos.add(new Video(video.ext,video.type,video.url));
                    }
                }


                return fVideos;
            }
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("Downloader", "Couldn't get YouTube streaming URL", e);
        }
        Log.e("Downloader", "Couldn't get stream URI for " + url);
        return null;
    }

    @Override
    protected void onPostExecute(ArrayList<Video> streamingUrl) {
        super.onPostExecute(streamingUrl);
        progressDialog.dismiss();
        if (streamingUrl != null) {
            if (!streamingUrl.isEmpty()) {
                //Log.e("Steaming Url", "Value : " + streamingUrl);

                for (int i = 0; i < streamingUrl.size(); i++) {
                    Video fX = streamingUrl.get(i);
                    Log.e("Founded Video", "URL : " + fX.url);
                    Log.e("Founded Video", "TYPE : " + fX.type);
                    Log.e("Founded Video", "EXT : " + fX.ext);
                }
                //new ProgressBack().execute(new String[]{streamingUrl, filename + "." + ext});
            }
        }
    }
}
public void initTypeMap()
{
    typeMap.put("13", new Meta("13", "3GP", "Low Quality - 176x144"));
    typeMap.put("17", new Meta("17", "3GP", "Medium Quality - 176x144"));
    typeMap.put("36", new Meta("36", "3GP", "High Quality - 320x240"));
    typeMap.put("5", new Meta("5", "FLV", "Low Quality - 400x226"));
    typeMap.put("6", new Meta("6", "FLV", "Medium Quality - 640x360"));
    typeMap.put("34", new Meta("34", "FLV", "Medium Quality - 640x360"));
    typeMap.put("35", new Meta("35", "FLV", "High Quality - 854x480"));
    typeMap.put("43", new Meta("43", "WEBM", "Low Quality - 640x360"));
    typeMap.put("44", new Meta("44", "WEBM", "Medium Quality - 854x480"));
    typeMap.put("45", new Meta("45", "WEBM", "High Quality - 1280x720"));
    typeMap.put("18", new Meta("18", "MP4", "Medium Quality - 480x360"));
    typeMap.put("22", new Meta("22", "MP4", "High Quality - 1280x720"));
    typeMap.put("37", new Meta("37", "MP4", "High Quality - 1920x1080"));
    typeMap.put("33", new Meta("38", "MP4", "High Quality - 4096x230"));
}

Edit 2:

Some time This Code Not worked proper

Same-origin policy

https://en.wikipedia.org/wiki/Same-origin_policy

https://en.wikipedia.org/wiki/Cross-origin_resource_sharing

problem of Same-origin policy. Essentially, you cannot download this file from www.youtube.com because they are different domains. A workaround of this problem is [CORS][1]. 

Ref : https://superuser.com/questions/773719/how-do-all-of-these-save-video-from-youtube-services-work/773998#773998

url_encoded_fmt_stream_map // traditional: contains video and audio stream
adaptive_fmts              // DASH: contains video or audio stream

Each of these is a comma separated array of what I would call "stream objects". Each "stream object" will contain values like this

url  // direct HTTP link to a video
itag // code specifying the quality
s    // signature, security measure to counter downloading

Each URL will be encoded so you will need to decode them. Now the tricky part.

YouTube has at least 3 security levels for their videos

unsecured // as expected, you can download these with just the unencoded URL
s         // see below
RTMPE     // uses "rtmpe://" protocol, no known method for these

The RTMPE videos are typically used on official full length movies, and are protected with SWF Verification Type 2. This has been around since 2011 and has yet to be reverse engineered.

The type "s" videos are the most difficult that can actually be downloaded. You will typcially see these on VEVO videos and the like. They start with a signature such as

AA5D05FA7771AD4868BA4C977C3DEAAC620DE020E.0F421820F42978A1F8EAFCDAC4EF507DB5 Then the signature is scrambled with a function like this

function mo(a) {
  a = a.split("");
  a = lo.rw(a, 1);
  a = lo.rw(a, 32);
  a = lo.IC(a, 1);
  a = lo.wS(a, 77);
  a = lo.IC(a, 3);
  a = lo.wS(a, 77);
  a = lo.IC(a, 3);
  a = lo.wS(a, 44);
  return a.join("")
}

This function is dynamic, it typically changes every day. To make it more difficult the function is hosted at a URL such as

http://s.ytimg.com/yts/jsbin/html5player-en_US-vflycBCEX.js

this introduces the problem of Same-origin policy. Essentially, you cannot download this file from www.youtube.com because they are different domains. A workaround of this problem is CORS. With CORS, s.ytimg.com could add this header

Access-Control-Allow-Origin: http://www.youtube.com

and it would allow the JavaScript to download from www.youtube.com. Of course they do not do this. A workaround for this workaround is to use a CORS proxy. This is a proxy that responds with the following header to all requests

Access-Control-Allow-Origin: *

So, now that you have proxied your JS file, and used the function to scramble the signature, you can use that in the querystring to download a video.

Add this to method to UIView Category

- (UIImage*) capture {
    UIGraphicsBeginImageContext(self.bounds.size);
    CGContextRef context = UIGraphicsGetCurrentContext();
    [self.layer renderInContext:context];
    UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return img;
}

Pretty sure this solves what you're looking for:

HTML:

<table>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
    <tr><td><button class="editbtn">edit</button></td></tr>
</table>

Javascript (using jQuery):

$(document).ready(function(){
    $('.editbtn').click(function(){
        $(this).html($(this).html() == 'edit' ? 'modify' : 'edit');
    });
});

Edit:

Apparently I should have looked at your sample code first ;)

You need to change (at least) the ID attribute of each element. The ID is the unique identifier for each element on the page, meaning that if you have multiple items with the same ID, you'll get conflicts.

By using classes, you can apply the same logic to multiple elements without any conflicts.

JSFiddle sample

int value, *ptr;

value = 8;
ptr = &value;
// ptr points to value, which lives on a stack frame.
// you are not responsible for managing its lifetime.

ptr = new int;
delete ptr;
// yes this is the normal way to manage the lifetime of
// dynamically allocated memory, you new'ed it, you delete it.

ptr = nullptr;
delete ptr;
// this is illogical, essentially you are saying delete nothing.

You can have it this way:

It is important to mind the commas after each struct item or set of items.

earnings := []LineItemsType{

        LineItemsType{

            TypeName: "Earnings",

            Totals: 0.0,

            HasTotal: true,

            items: []LineItems{

                LineItems{

                    name: "Basic Pay",

                    amount: 100.0,
                },

                LineItems{

                    name: "Commuter Allowance",

                    amount: 100.0,
                },
            },
        },
        LineItemsType{

            TypeName: "Earnings",

            Totals: 0.0,

            HasTotal: true,

            items: []LineItems{

                LineItems{

                    name: "Basic Pay",

                    amount: 100.0,
                },

                LineItems{

                    name: "Commuter Allowance",

                    amount: 100.0,
                },
            },
        },
    }

Here is a trick though. You can map the Ctrl+Z keys. This can be achieved by editing the .vimrc file. Add the following lines in the '.vimrc` file.

nnoremap <c-z> :u<CR>      " Avoid using this**
inoremap <c-z> <c-o>:u<CR>

This may not the a preferred way, but can be used.

** Ctrl+Z is used in Linux to suspend the ongoing program/process.

Option 1

If you do not need to use Authentication you can add configs to ngrok commands

ngrok http 9000 --host-header=rewrite

or

ngrok http 9000 --host-header="localhost:9000"

But in this case Authentication will not work on your website because ngrok rewriting headers and session is not valid for your ngrok domain

Option 2

If you are using webpack you can add the following configuration

devServer: {
    disableHostCheck: true
}

In that case Authentication header will be valid for your ngrok domain

I was having same problem while installing tomcat in docker. I have solved by adding "^.*$" instead of "127.\d+.\d+.\d+|::1|0:0:0:0:0:0:0:1|123.123.123.123"

Restart the tomcat.

Add this android:screenOrientation="portrait" in your manifest file where you declare your activity like this

<activity android:name=".yourActivity"
    ....
    android:screenOrientation="portrait" />

If you want to do using java code try

setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); 

before you call setContentView method for your activity in onCreate().

Hope this help and easily understandable for all...

for i,j in dictionary .items():
    if i=='C1':
        c=[]
        for k in j:
            j=k+10
            c.append(j)
            dictionary .update({i:c})

In general you can concatenate a whole sequence of arrays along any axis:

numpy.concatenate( LIST, axis=0 )

but you do have to worry about the shape and dimensionality of each array in the list (for a 2-dimensional 3x5 output, you need to ensure that they are all 2-dimensional n-by-5 arrays already). If you want to concatenate 1-dimensional arrays as the rows of a 2-dimensional output, you need to expand their dimensionality.

As Jorge's answer points out, there is also the function stack, introduced in numpy 1.10:

numpy.stack( LIST, axis=0 )

This takes the complementary approach: it creates a new view of each input array and adds an extra dimension (in this case, on the left, so each n-element 1D array becomes a 1-by-n 2D array) before concatenating. It will only work if all the input arrays have the same shape—even along the axis of concatenation.

vstack (or equivalently row_stack) is often an easier-to-use solution because it will take a sequence of 1- and/or 2-dimensional arrays and expand the dimensionality automatically where necessary and only where necessary, before concatenating the whole list together. Where a new dimension is required, it is added on the left. Again, you can concatenate a whole list at once without needing to iterate:

numpy.vstack( LIST )

This flexible behavior is also exhibited by the syntactic shortcut numpy.r_[ array1, ...., arrayN ] (note the square brackets). This is good for concatenating a few explicitly-named arrays but is no good for your situation because this syntax will not accept a sequence of arrays, like your LIST.

There is also an analogous function column_stack and shortcut c_[...], for horizontal (column-wise) stacking, as well as an almost-analogous function hstack—although for some reason the latter is less flexible (it is stricter about input arrays' dimensionality, and tries to concatenate 1-D arrays end-to-end instead of treating them as columns).

Finally, in the specific case of vertical stacking of 1-D arrays, the following also works:

numpy.array( LIST )

...because arrays can be constructed out of a sequence of other arrays, adding a new dimension to the beginning.

I normally use on instead of click. It allow me to add more events listeners to a specific function.

$(document).on("click touchend", ".class1, .class2, .class3", function () {
     //do stuff
});

You can request a path in this format:

/package/path/to/the/resource.ext

Even the bytes for creating the classes in memory are found this way:

my.Class -> /my/Class.class

and getResource will give you a URL which can be used to retrieve an InputStream.

But... I'd recommend using directly getClass().getResourceAsStream(...) with the same argument, because it returns directly the InputStream and don't have to worry about creating a (probably complex) URL object that has to know how to create the InputStream.

In short: try using getResourceAsStream and some constructor of ImageIcon that uses an InputStream as an argument.

Classloaders

Be careful if your app has many classloaders. If you have a simple standalone application (no servers or complex things) you shouldn't worry. I don't think it's the case provided ImageIcon was capable of finding it.

Edit: classpath

getResource is—as mattb says—for loading resources from the classpath (from your .jar or classpath directory). If you are bundling an app it's nice to have altogether, so you could include the icon file inside the jar of your app and obtain it this way.

You need to enclose that in <%! %> as follows:

<%!

public String getQuarter(int i){
String quarter;
switch(i){
        case 1: quarter = "Winter";
        break;

        case 2: quarter = "Spring";
        break;

        case 3: quarter = "Summer I";
        break;

        case 4: quarter = "Summer II";
        break;

        case 5: quarter = "Fall";
        break;

        default: quarter = "ERROR";
}

return quarter;
}

%>

You can then invoke the function within scriptlets or expressions:

<%
     out.print(getQuarter(4));
%>

or

<%= getQuarter(17) %>

For example two class A,B having same method m1(). And class C extends both A, B.

 class C extends A, B // for explaining purpose.

Now, class C will search the definition of m1. First, it will search in class if it didn't find then it will check to parents class. Both A, B having the definition So here ambiguity occur which definition should choose. So JAVA DOESN'T SUPPORT MULTIPLE INHERITANCE.

I'm not sure what you mean by "then again by the parser". After the splitting has been done, there's no further traversal of the string, only a traversal of the list of split strings. This will probably actually be the fastest way to accomplish this, so long as the size of your string isn't absolutely huge. The fact that python uses immutable strings means that you must always create a new string, so this has to be done at some point anyway.

If your string is very large, the disadvantage is in memory usage: you'll have the original string and a list of split strings in memory at the same time, doubling the memory required. An iterator approach can save you this, building a string as needed, though it still pays the "splitting" penalty. However, if your string is that large, you generally want to avoid even the unsplit string being in memory. It would be better just to read the string from a file, which already allows you to iterate through it as lines.

However if you do have a huge string in memory already, one approach would be to use StringIO, which presents a file-like interface to a string, including allowing iterating by line (internally using .find to find the next newline). You then get:

import StringIO
s = StringIO.StringIO(myString)
for line in s:
    do_something_with(line)

In the MySQL Workbech version 6.2 don't exits the PreferenceSQLQueriesoptions.

difference in both is just the View Point
Encapsulation word is used for hiding data if our aim is to prevent client seeing inside view of our logic

Abstraction word is used for hiding data if our aim is to show our client a out side view

Outside view means that let suppose

BubbleSort(){
//code 
swap(x,y);
}

here we use swap in bubble sort for just showing our client what logic we are applying, If we replace swap(x,y) with whole code here, In a single instance he/she can't understand our logic

You need to Open the SQL Developer first and then click on File option and browse to the location where your .sql is placed. Once you are at the location where file is placed double click on it, this will get the file open in SQL Developer. Now select all of the content of file (CTRL + A) and press F9 key. Just make sure there is a commit statement at the end of the .sql script so that the changes are persisted in the database

If anyone from the future also wanders up here:

docker-compose exec container_name sh

or

docker-compose exec container_name bash

or you can run single lines like

docker-compose exec container_name php -v

That is after you already have your containers up and running

var lastname = "Hi";

if(typeof lastname !== "undefined")
{
  alert("Hi. Variable is defined.");
} 

Add the below code in your page. Trust me, no changes made to button events, to disable/enable button simply add/remove the button class in Javascript.

Method 1

 <asp Button ID="btnSave" CssClass="disabledContent" runat="server" />

<style type="text/css">
    .disabledContent 
    {
        cursor: not-allowed;
        background-color: rgb(229, 229, 229) !important;
    }

    .disabledContent > * 
    {
        pointer-events:none;
    }
</style>

Method 2

<asp Button ID="btnSubmit" CssClass="btn-disable" runat="server" />

<style type="text/css">
    .btn-disable
        {
        cursor: not-allowed;
        pointer-events: none;

        /*Button disabled - CSS color class*/
        color: #c0c0c0;
        background-color: #ffffff;

        }
</style>

Brendan is correct. You can edit the Select command to edit a filtered list of records. For instance "WHERE dept_no = 200".

The accepted answer of how to create an Index inline a Table creation script did not work for me. This did:

CREATE TABLE [dbo].[TableToBeCreated]
(
    [Id] BIGINT IDENTITY(1, 1) NOT NULL PRIMARY KEY
    ,[ForeignKeyId] BIGINT NOT NULL
    ,CONSTRAINT [FK_TableToBeCreated_ForeignKeyId_OtherTable_Id] FOREIGN KEY ([ForeignKeyId]) REFERENCES [dbo].[OtherTable]([Id])
    ,INDEX [IX_TableToBeCreated_ForeignKeyId] NONCLUSTERED ([ForeignKeyId])
)

Remember, Foreign Keys do not create Indexes, so it is good practice to index them as you will more than likely be joining on them.

You have two issues in your code.. First you need reference to capture the element on click. Try adding another parameter to your function to reference this. Also active class is for li element initially while you are tryin to add it to "a" element in the function. try this..

<div class="row" style="padding-left:21px;">
 <ul class="nav nav-tabs" style="padding-left:40px;">
      <li class="active filter"><a href="#month" onclick="Data('month',this)">This Month</a></li>
      <li class="filter"><a href="#year" onclick="Data('year',this)">Year</a></li>
      <li class="filter"><a href="#last60"  onclick="Data('last60',this)">60 Days</a></li>
      <li class="filter"><a href="#last90"  onclick="Data('last90',this)">90 Days</a></li>
    </ul> 

</div>

<script>
  function Data(string,element)
    { 
      //1. get some data from server according to month year etc.,
      //2. unactive all the remaining li's and make the current clicked element active by adding "active" class to the element
      $('.filter').removeClass('active');

      $(element).parent().addClass('active') ;

    } 
</script>

for me the shortest way is to type ./gradlew signingReport in the terminal command line.

P.s : if you are in Windows use .\gradlew signingReport instead.

You have a selector ul on line 252 which is setting list-style: square outside none (a square bullet). You'll have to change it to list-style: none or just remove the line.

If you only want to remove the bullets from that specific instance, you can use the specific selector for that list and its items as follows:

ul#groups-list.items-list { list-style: none }

Since version 2.10, one can use Scala's string interpolation feature:

implicit class RegexOps(sc: StringContext) {
  def r = new util.matching.Regex(sc.parts.mkString, sc.parts.tail.map(_ => "x"): _*)
}

scala> "123" match { case r"\d+" => true case _ => false }
res34: Boolean = true

Even better one can bind regular expression groups:

scala> "123" match { case r"(\d+)$d" => d.toInt case _ => 0 }
res36: Int = 123

scala> "10+15" match { case r"(\d\d)${first}\+(\d\d)${second}" => first.toInt+second.toInt case _ => 0 }
res38: Int = 25

It is also possible to set more detailed binding mechanisms:

scala> object Doubler { def unapply(s: String) = Some(s.toInt*2) }
defined module Doubler

scala> "10" match { case r"(\d\d)${Doubler(d)}" => d case _ => 0 }
res40: Int = 20

scala> object isPositive { def unapply(s: String) = s.toInt >= 0 }
defined module isPositive

scala> "10" match { case r"(\d\d)${d @ isPositive()}" => d.toInt case _ => 0 }
res56: Int = 10

An impressive example on what's possible with Dynamic is shown in the blog post Introduction to Type Dynamic:

object T {

  class RegexpExtractor(params: List[String]) {
    def unapplySeq(str: String) =
      params.headOption flatMap (_.r unapplySeq str)
  }

  class StartsWithExtractor(params: List[String]) {
    def unapply(str: String) =
      params.headOption filter (str startsWith _) map (_ => str)
  }

  class MapExtractor(keys: List[String]) {
    def unapplySeq[T](map: Map[String, T]) =
      Some(keys.map(map get _))
  }

  import scala.language.dynamics

  class ExtractorParams(params: List[String]) extends Dynamic {
    val Map = new MapExtractor(params)
    val StartsWith = new StartsWithExtractor(params)
    val Regexp = new RegexpExtractor(params)

    def selectDynamic(name: String) =
      new ExtractorParams(params :+ name)
  }

  object p extends ExtractorParams(Nil)

  Map("firstName" -> "John", "lastName" -> "Doe") match {
    case p.firstName.lastName.Map(
          Some(p.Jo.StartsWith(fn)),
          Some(p.`.*(\\w)$`.Regexp(lastChar))) =>
      println(s"Match! $fn ...$lastChar")
    case _ => println("nope")
  }
}

No, don't do it that way.

From your Eclipse workspace, right click your project on the left pane -> Properties -> Java Build Path -> Add Jars -> add your jars here.

Tadaa!! :)

Instead of

beforeEach(() => {..

use

beforeEach(fakeAsync(() => {..

why don't u try using an absolute xPath

//soap:Envelope[1]/soap:Body[1]/PaymentNotification[1]/payment

or since u know that it is a payment and payment doesn't have any attributes just select directly from payment

//soap:Envelope[1]/soap:Body[1]/PaymentNotification[1]/payment/*

Here is a C implementation that is doing the word reversing inlace, and it has O(n) complexity.

char* reverse(char *str, char wordend=0)
{
    char c;
    size_t len = 0;
    if (wordend==0) {
        len = strlen(str);
    }
    else {
        for(size_t i=0;str[i]!=wordend && str[i]!=0;i++)
            len = i+1;
    }
            for(size_t i=0;i<len/2;i++) {
                c = str[i];
                str[i] = str[len-i-1];
                str[len-i-1] = c;
            }
    return str;
}

char* inplace_reverse_words(char *w)
{
    reverse(w); // reverse all letters first
    bool is_word_start = (w[0]!=0x20);

    for(size_t i=0;i<strlen(w);i++){
        if(w[i]!=0x20 && is_word_start) {
            reverse(&w[i], 0x20); // reverse one word only
            is_word_start = false;
        }
        if (!is_word_start && w[i]==0x20) // found new word
            is_word_start = true;
    }
    return w;
}

Arrays in Java have a defined size, you cannot change it later by adding or removing elements (you can read some basics here).

Instead, use a List:

ArrayList<String> mylist = new ArrayList<String>();
mylist.add(mystring); //this adds an element to the list.

Of course, if you know beforehand how many strings you are going to put in your array, you can create an array of that size and set the elements by using the correct position:

String[] myarray = new String[numberofstrings];
myarray[23] = string24; //this sets the 24'th (first index is 0) element to string24.

Do a cross-domain AJAX call

Your web-service must support method injection in order to do JSONP.

Your code seems fine and it should work if your web services and your web application hosted in the same domain.

When you do a $.ajax with dataType: 'jsonp' meaning that jQuery is actually adding a new parameter to the query URL.

For instance, if your URL is http://10.211.2.219:8080/SampleWebService/sample.do then jQuery will add ?callback={some_random_dynamically_generated_method}.

This method is more kind of a proxy actually attached in window object. This is nothing specific but does look something like this:

window.some_random_dynamically_generated_method = function(actualJsonpData) {
    //here actually has reference to the success function mentioned with $.ajax
    //so it just calls the success method like this: 
    successCallback(actualJsonData);
}

Check the following for more information

Make cross-domain ajax JSONP request with jQuery

I wasted hours on this stupid issue. None of the above solutions worked for me on their own.

I'm running Windows 10. I had an old manual install of the Android SDK as well as Android Studio's SDK. I deleted my manually installed SDK and all my devices stopped working. These were the symptoms:

$ adb usb
error: device unauthorized.
This adb server's $ADB_VENDOR_KEYS is not set
Try 'adb kill-server' if that seems wrong.
Otherwise check for a confirmation dialog on your device.

as well as

$ adb devices
List of devices attached
id1        unauthorized
id2        unauthorized
id3        unauthorized

To be honest I'm not sure which of these steps got me my Allow USB debugging? prompts back so I listed EVERYTHING for completeness. Goes in order from easiest to hardest. Most people seem to be back on their feet after the first two sections.

Restart ADB

I would perform this after each of the sections below.

adb kill-server
adb usb

Go crazy with developer options

1. Turn Developer options off and back on
2. Turn USB debugging off and back on
3. Revoke USB debugging authorizations. Try this while USB debugging is on and if possible try also when USB debugging is off.

Replug devices

1. Unplug and replug USB cable into phone.
2. Switch physical ports on your PC that your USB cable is connected into
3. Switch physical USB cables you're using to connect your devices

Start rebooting everything

1. Reboot all your devices and connect again
2. Reboot your PC
3. Toggle WIFI on and off

Start deleting things

1. CAUTION Delete your ~/.android folder. Sometimes this folder can have the wrong permissions which can cause issues. You might want to back this folder up first.
2. Uninstall all manufacturer specific drivers from add/remove programs. I uninstalled the following (names are not exact)
   • LG United USB Driver
   • HTC Mobile USB Driver
   • OnePlus USB Drivers 1.00
   • Samsung USB Driver
3. I also uninstalled all emulators and their respective drivers (optional)
   • Nox & related drivers
   • Bluestacks
   • Genymotion

Erase all Android related environment variables.

1. Delete %ANDROID_HOME% if you have it set
2. Delete %ANDROID_SDK_HOME% if you have it set

At this point all my devices magically came to life and started displaying the Allow USB debugging? prompts and connecting properly through ADB. If you've made it this far and haven't found a solution, I am truly sorry you're in this predicament. Make sure you've restarted all devices and your dev machine at the end of all of these steps and connect to a fresh USB port using a new cable.

If that still doesn't work try some of these other SO posts on the subject:

• Android ADB device offline, can't issue commands
• Can't connect Nexus 4 to adb: unauthorized
• How to solve ADB device unauthorized in Android ADB host device?

data = File.read("/path/to/file")

a) Can you explain to me the difference between int64_t and long (long int)? In my understanding, both are 64 bit integers. Is there any reason to choose one over the other?

The former is a signed integer type with exactly 64 bits. The latter is a signed integer type with at least 32 bits.

b) I tried to look up the definition of int64_t on the web, without much success. Is there an authoritative source I need to consult for such questions?

http://cppreference.com covers this here: http://en.cppreference.com/w/cpp/types/integer. The authoritative source, however, is the C++ standard (this particular bit can be found in §18.4 Integer types [cstdint]).

c) For code using int64_t to compile, I am including <iostream>, which doesn't make much sense to me. Are there other includes that provide a declaration of int64_t?

It is declared in <cstdint> or <cinttypes> (under namespace std), or in <stdint.h> or <inttypes.h> (in the global namespace).

As of MongoDB 2.4, you can use $setOnInsert (http://docs.mongodb.org/manual/reference/operator/setOnInsert/)

Set 'insertion_date' using $setOnInsert and 'last_update_date' using $set in your upsert command.

To turn your pseudocode into a working example:

now = datetime.utcnow()
for document in update:
    collection.update_one(
        {"_id": document["_id"]},
        {
            "$setOnInsert": {"insertion_date": now},
            "$set": {"last_update_date": now},
        },
        upsert=True,
    )

Well, I guess the question is, what do you mean by 'roll back'? If you can't reset because it's public and you want to keep the commit history intact, do you mean you just want your working copy to reflect a specific commit? Use git checkout and the commit hash.

Edit: As was pointed out in the comments, using git checkout without specifying a branch will leave you in a "no branch" state. Use git checkout <commit> -b <branchname> to checkout into a branch, or git checkout <commit> . to checkout into the current branch.

You forgot the () at the end. It is not a variable, but a function and when there are not parameters, you still need the () at the end.

For future coding practices, I would highly recommend reforming the code a little bit as this can become frustrating to read:

 public string LastName
 { get { return lastName; } set { lastName = value; } }

If there is any kind of processing which happens in here (thankfully doesn't happen here), it will become very confusing. If you're going to pass your code onto someone else, I would recommend:

public string LastName
{
  get
  {
     return lastName;
  }
  set
  {
     lastName = value;
  }
}

It's a lot longer, but it's much easier to read when glancing at a huge section of code.

unittest comes with the standard library, but I would recomend you nosetests.

"nose extends unittest to make testing easier."

I would also recomend you pylint

"analyzes Python source code looking for bugs and signs of poor quality."

You can use eval(jsonString) if you trust the data in the string, otherwise you'll need to parse it properly - check json.org for some code samples.

export class Dashboard {
    innerHeight: any;
    innerWidth: any;
    constructor() {
        this.innerHeight = (window.screen.height) + "px";
        this.innerWidth = (window.screen.width) + "px";
    }
}

To create a thread you normally create your own implementation of Runnable. Pass the parameters to the thread in the constructor of this class.

class MyThread implements Runnable{
   private int a;
   private String b;
   private double c;

   public MyThread(int a, String b, double c){
      this.a = a;
      this.b = b;
      this.c = c;
   }

   public void run(){
      doSomething(a, b, c);
   }
}

    $("#select_location_id").val(value);
    $("#select_location_id").select2().trigger('change');

I solved my problem with this simple code. Where #select_location_id is an ID of select box and value is value of an option listed in select2 box.

I had to call a function once my dataService was initialized, instead, I called it inside the constructor, that worked for me.

As others have stated, the String type in .NET is immutable and it's reference is passed by value.

In the original code, as soon as this line executes:

test = "after passing";

then test is no longer referring to the original object. We've created a new String object and assigned test to reference that object on the managed heap.

I feel that many people get tripped up here since there's no visible formal constructor to remind them. In this case, it's happening behind the scenes since the String type has language support in how it is constructed.

Hence, this is why the change to test is not visible outside the scope of the TestI(string) method - we've passed the reference by value and now that value has changed! But if the String reference were passed by reference, then when the reference changed we will see it outside the scope of the TestI(string) method.

Either the ref or out keyword are needed in this case. I feel the out keyword might be slightly better suited for this particular situation.

class Program
{
    static void Main(string[] args)
    {
        string test = "before passing";
        Console.WriteLine(test);
        TestI(out test);
        Console.WriteLine(test);
        Console.ReadLine();
    }

    public static void TestI(out string test)
    {
        test = "after passing";
    }
}

Try below command:

chmod +x gradlew && ./gradlew compileDebug --stacktrace

The reason your attempt wasn't working, is because the two animations (fade-in and fade-out) were working against each other.

Right before an object became visible, it was still invisible and so the animation for fading-out would run. Then, the fraction of a second later when that same object had become visible, the fade-in animation would try to run, but the fade-out was still running. So they would work against each other and you would see nothing.

Eventually the object would become visible (most of the time), but it would take a while. And if you would scroll down by using the arrow-button at the button of the scrollbar, the animation would sort of work, because you would scroll using bigger increments, creating less scroll-events.

Enough explanation, the solution (JS, CSS, HTML):

$(window).on("load",function() {_x000D_
  $(window).scroll(function() {_x000D_
    var windowBottom = $(this).scrollTop() + $(this).innerHeight();_x000D_
    $(".fade").each(function() {_x000D_
      /* Check the location of each desired element */_x000D_
      var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
      _x000D_
      /* If the element is completely within bounds of the window, fade it in */_x000D_
      if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
        if ($(this).css("opacity")==0) {$(this).fadeTo(500,1);}_x000D_
      } else { //object goes out of view (scrolling up)_x000D_
        if ($(this).css("opacity")==1) {$(this).fadeTo(500,0);}_x000D_
      }_x000D_
    });_x000D_
  }).scroll(); //invoke scroll-handler on page-load_x000D_
});

.fade {_x000D_
  margin: 50px;_x000D_
  padding: 50px;_x000D_
  background-color: lightgreen;_x000D_
  opacity: 1;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
  <div class="fade">Fade In 01</div>_x000D_
  <div class="fade">Fade In 02</div>_x000D_
  <div class="fade">Fade In 03</div>_x000D_
  <div class="fade">Fade In 04</div>_x000D_
  <div class="fade">Fade In 05</div>_x000D_
  <div class="fade">Fade In 06</div>_x000D_
  <div class="fade">Fade In 07</div>_x000D_
  <div class="fade">Fade In 08</div>_x000D_
  <div class="fade">Fade In 09</div>_x000D_
  <div class="fade">Fade In 10</div>_x000D_
</div>

• I wrapped the fade-codeline in an if-clause: if ($(this).css("opacity")==0) {...}. This makes sure the object is only faded in when the opacity is 0. Same goes for fading out. And this prevents the fade-in and fade-out from working against each other, because now there's ever only one of the two running at one time on an object.
• I changed .animate() to .fadeTo(). It's jQuery's specialized function for opacity, a lot shorter to write and probably lighter than animate.
• I changed .position() to .offset(). This always calculates relative to the body, whereas position is relative to the parent. For your case I believe offset is the way to go.
• I changed $(window).height() to $(window).innerHeight(). The latter is more reliable in my experience.
• Directly after the scroll-handler, I invoke that handler once on page-load with $(window).scroll();. Now you can give all desired objects on the page the .fade class, and objects that should be invisible at page-load, will be faded out immediately.
• I removed #container from both HTML and CSS, because (at least for this answer) it isn't necessary. (I thought maybe you needed the height:2000px because you used .position() instead of .offset(), otherwise I don't know. Feel free of course to leave it in your code.)

UPDATE

If you want opacity values other than 0 and 1, use the following code:

$(window).on("load",function() {_x000D_
  function fade(pageLoad) {_x000D_
    var windowBottom = $(window).scrollTop() + $(window).innerHeight();_x000D_
    var min = 0.3;_x000D_
    var max = 0.7;_x000D_
    var threshold = 0.01;_x000D_
    _x000D_
    $(".fade").each(function() {_x000D_
      /* Check the location of each desired element */_x000D_
      var objectBottom = $(this).offset().top + $(this).outerHeight();_x000D_
      _x000D_
      /* If the element is completely within bounds of the window, fade it in */_x000D_
      if (objectBottom < windowBottom) { //object comes into view (scrolling down)_x000D_
        if ($(this).css("opacity")<=min+threshold || pageLoad) {$(this).fadeTo(500,max);}_x000D_
      } else { //object goes out of view (scrolling up)_x000D_
        if ($(this).css("opacity")>=max-threshold || pageLoad) {$(this).fadeTo(500,min);}_x000D_
      }_x000D_
    });_x000D_
  } fade(true); //fade elements on page-load_x000D_
  $(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});

.fade {_x000D_
  margin: 50px;_x000D_
  padding: 50px;_x000D_
  background-color: lightgreen;_x000D_
  opacity: 1;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
  <div class="fade">Fade In 01</div>_x000D_
  <div class="fade">Fade In 02</div>_x000D_
  <div class="fade">Fade In 03</div>_x000D_
  <div class="fade">Fade In 04</div>_x000D_
  <div class="fade">Fade In 05</div>_x000D_
  <div class="fade">Fade In 06</div>_x000D_
  <div class="fade">Fade In 07</div>_x000D_
  <div class="fade">Fade In 08</div>_x000D_
  <div class="fade">Fade In 09</div>_x000D_
  <div class="fade">Fade In 10</div>_x000D_
</div>

• I added a threshold to the if-clause, see explanation below.
• I created variables for the threshold and for min/max at the start of the function. In the rest of the function these variables are referenced. This way, if you ever want to change the values again, you only have to do it in one place.
• I also added || pageLoad to the if-clause. This was necessary to make sure all objects are faded to the correct opacity on page-load. pageLoad is a boolean that is send along as an argument when fade() is invoked.
  I had to put the fade-code inside the extra function fade() {...}, in order to be able to send along the pageLoad boolean when the scroll-handler is invoked.
  I did't see any other way to do this, if anyone else does, please leave a comment.

Explanation:
The reason the code in your fiddle didn't work, is because the actual opacity values are always a little off from the value you set it to. So if you set the opacity to 0.3, the actual value (in this case) is 0.300000011920929. That's just one of those little bugs you have to learn along the way by trail and error. That's why this if-clause won't work: if ($(this).css("opacity") == 0.3) {...}.

I added a threshold, to take that difference into account: == 0.3 becomes <= 0.31.
(I've set the threshold to 0.01, this can be changed of course, just as long as the actual opacity will fall between the set value and this threshold.)

The operators are now changed from == to <= and >=.

UPDATE 2:

If you want to fade the elements based on their visible percentage, use the following code:

$(window).on("load",function() {_x000D_
  function fade(pageLoad) {_x000D_
    var windowTop=$(window).scrollTop(), windowBottom=windowTop+$(window).innerHeight();_x000D_
    var min=0.3, max=0.7, threshold=0.01;_x000D_
    _x000D_
    $(".fade").each(function() {_x000D_
      /* Check the location of each desired element */_x000D_
      var objectHeight=$(this).outerHeight(), objectTop=$(this).offset().top, objectBottom=$(this).offset().top+objectHeight;_x000D_
      _x000D_
      /* Fade element in/out based on its visible percentage */_x000D_
      if (objectTop < windowTop) {_x000D_
        if (objectBottom > windowTop) {$(this).fadeTo(0,min+((max-min)*((objectBottom-windowTop)/objectHeight)));}_x000D_
        else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
      } else if (objectBottom > windowBottom) {_x000D_
        if (objectTop < windowBottom) {$(this).fadeTo(0,min+((max-min)*((windowBottom-objectTop)/objectHeight)));}_x000D_
        else if ($(this).css("opacity")>=min+threshold || pageLoad) {$(this).fadeTo(0,min);}_x000D_
      } else if ($(this).css("opacity")<=max-threshold || pageLoad) {$(this).fadeTo(0,max);}_x000D_
    });_x000D_
  } fade(true); //fade elements on page-load_x000D_
  $(window).scroll(function(){fade(false);}); //fade elements on scroll_x000D_
});

.fade {_x000D_
  margin: 50px;_x000D_
  padding: 50px;_x000D_
  background-color: lightgreen;_x000D_
  opacity: 1;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>_x000D_
_x000D_
<div>_x000D_
  <div class="fade">Fade In 01</div>_x000D_
  <div class="fade">Fade In 02</div>_x000D_
  <div class="fade">Fade In 03</div>_x000D_
  <div class="fade">Fade In 04</div>_x000D_
  <div class="fade">Fade In 05</div>_x000D_
  <div class="fade">Fade In 06</div>_x000D_
  <div class="fade">Fade In 07</div>_x000D_
  <div class="fade">Fade In 08</div>_x000D_
  <div class="fade">Fade In 09</div>_x000D_
  <div class="fade">Fade In 10</div>_x000D_
</div>

You can use Ruby's open classes to make your code much more readable. For instance, this:

class String
  def initial
    self[0,1]
  end
end

will allow you to use the initial method on any string. So if you have the following variables:

last_name = "Smith"
first_name = "John"

Then you can get the initials very cleanly and readably:

puts first_name.initial   # prints J
puts last_name.initial    # prints S

The other method mentioned here doesn't work on Ruby 1.8 (not that you should be using 1.8 anymore anyway!--but when this answer was posted it was still quite common):

puts 'Smith'[0]           # prints 83

Of course, if you're not doing it on a regular basis, then defining the method might be overkill, and you could just do it directly:

puts last_name[0,1] 

jQuery uses a .call(...) method to assign the current node to this inside the function you pass as the parameter.

EDIT:

Don't be afraid to look inside jQuery's code when you have a doubt, it's all in clear and well documented Javascript.

ie: the answer to this question is around line 574,
callback.call( object[ name ], name, object[ name ] ) === false

As Michelle Tilley said, but with the appropriate control flow:

var http = require('http');
var fs = require('fs');

var download = function(url, dest, cb) {
  var file = fs.createWriteStream(dest);
  http.get(url, function(response) {
    response.pipe(file);
    file.on('finish', function() {
      file.close(cb);
    });
  });
}

Without waiting for the finish event, naive scripts may end up with an incomplete file.

Edit: Thanks to @Augusto Roman for pointing out that cb should be passed to file.close, not called explicitly.

This is old, but I put exports in my alias for connecting to the db:

alias schema_one.con="PGOPTIONS='--search_path=schema_one' psql -h host -U user -d database etc"

And for another schema:

alias schema_two.con="PGOPTIONS='--search_path=schema_two' psql -h host -U user -d database etc"

It seems strange that you would write arrays without commas (is that a MATLAB syntax?)

Have you tried going through NumPy's documentation on multi-dimensional arrays?

It seems NumPy has a "Python-like" append method to add items to a NumPy n-dimensional array:

>>> p = np.array([[1,2],[3,4]])

>>> p = np.append(p, [[5,6]], 0)

>>> p = np.append(p, [[7],[8],[9]],1)

>>> p
array([[1, 2, 7], [3, 4, 8], [5, 6, 9]])

It has also been answered already...

From the documentation for MATLAB users:

You could use a matrix constructor which takes a string in the form of a matrix MATLAB literal:

mat("1 2 3; 4 5 6")

or

matrix("[1 2 3; 4 5 6]")

Please give it a try and tell me how it goes.

jar xf myFile.jar
change myFile to name of your file
this will save the contents in the current folder of .jar file
that should do :)

You can also do:

tree | grep filename

This pipes the output of the tree command to grep for a search. This will only tell you whether the file exists though.

public static bool EqualsAny<T>(IEquatable<T> value, params T[] possibleMatches) {
    foreach (T t in possibleMatches) {
        if (value.Equals(t))
            return true;
    }
    return false;
}
public static bool EqualsAny<T>(IEquatable<T> value, IEnumerable<T> possibleMatches) {
    foreach (T t in possibleMatches) {
        if (value.Equals(t))
            return true;
    }
    return false;
}

Here's the painful route:

    SSLContext ctx = null;
    try {
        KeyStore trustStore;
        trustStore = KeyStore.getInstance("JKS");
        trustStore.load(new FileInputStream("C:\\truststore_client"),
                "asdfgh".toCharArray());
        TrustManagerFactory tmf = TrustManagerFactory
                .getInstance("SunX509");
        tmf.init(trustStore);
        ctx = SSLContext.getInstance("SSL");
        ctx.init(null, tmf.getTrustManagers(), null);
    } catch (NoSuchAlgorithmException e1) {
        e1.printStackTrace();
    } catch (KeyStoreException e) {
        e.printStackTrace();
    } catch (CertificateException e) {
        e.printStackTrace();
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    } catch (KeyManagementException e) {
        e.printStackTrace();
    }
    ClientConfig config = new DefaultClientConfig();
    config.getProperties().put(HTTPSProperties.PROPERTY_HTTPS_PROPERTIES,
            new HTTPSProperties(null, ctx));

    WebResource service = Client.create(config).resource(
            "https://localhost:9999/");
    service.addFilter(new HTTPBasicAuthFilter(username, password));

    // Attempt to view the user's page.
    try {
        service.path("user/" + username).get(String.class);
    } catch (Exception e) {
        e.printStackTrace();
    }

Gotta love those six different caught exceptions :). There are certainly some refactoring to simplify the code a bit. But, I like delfuego's -D options on the VM. I wish there was a javax.net.ssl.trustStore static property that I could just set. Just two lines of code and done. Anyone know where that would be?

This may be too much to ask, but, ideally the keytool would not be used. Instead, the trustedStore would be created dynamically by the code and the cert is added at runtime.

There must be a better answer.

Congratulations, you've hit my favorite pet peeve with JDBC: Date class handling.

Basically databases usually support at least three forms of datetime fields which are date, time and timestamp. Each of these have a corresponding class in JDBC and each of them extend java.util.Date. Quick semantics of each of these three are the following:

• java.sql.Date corresponds to SQL DATE which means it stores years, months and days while hour, minute, second and millisecond are ignored. Additionally sql.Date isn't tied to timezones.
• java.sql.Time corresponds to SQL TIME and as should be obvious, only contains information about hour, minutes, seconds and milliseconds.
• java.sql.Timestamp corresponds to SQL TIMESTAMP which is exact date to the nanosecond (note that util.Date only supports milliseconds!) with customizable precision.

One of the most common bugs when using JDBC drivers in relation to these three types is that the types are handled incorrectly. This means that sql.Date is timezone specific, sql.Time contains current year, month and day et cetera et cetera.

Finally: Which one to use?

Depends on the SQL type of the field, really. PreparedStatement has setters for all three values, #setDate() being the one for sql.Date, #setTime() for sql.Time and #setTimestamp() for sql.Timestamp.

Do note that if you use ps.setObject(fieldIndex, utilDateObject); you can actually give a normal util.Date to most JDBC drivers which will happily devour it as if it was of the correct type but when you request the data afterwards, you may notice that you're actually missing stuff.

I'm really saying that none of the Dates should be used at all.

What I am saying that save the milliseconds/nanoseconds as plain longs and convert them to whatever objects you are using (obligatory joda-time plug). One hacky way which can be done is to store the date component as one long and time component as another, for example right now would be 20100221 and 154536123. These magic numbers can be used in SQL queries and will be portable from database to another and will let you avoid this part of JDBC/Java Date API:s entirely.

Your string is invalid, but assuming it was valid, you'd have to do:

var finalData = str.replace(/\\/g, "");

When you want to replace all the occurences with .replace, the first parameter must be a regex, if you supply a string, only the first occurrence will be replaced, that's why your replace wouldn't work.

Cheers

They don't get focus events, so you'll have to use a trick like this: only way to clear it is to clear the entire form

<script type="text/javascript">
    $(function() {
        $("#wrapper").bind("mouseover", function() {
            $("form").get(0).reset();
        });
    });
</script>

<form>
<div id="wrapper">
    <input type=file value="" />
</div>
</form>

My issue has been resolved after I deleted the redundant assembly files from the bin folder.

Lock-free solution(?)

I had the same issue, but I wanted a solution that didn't use locks.

Problem: I have at most one thread consuming from a queue. Multiple producer threads are constantly inserting into the queue and need to notify the consumer if it's waiting. The queue is lock-free so using locks for notification causes unnecessary blocking in producer threads. Each producer thread needs to acquire the lock before it can notify the waiting consumer. I believe I came up with a lock-free solution using LockSupport and AtomicReferenceFieldUpdater. If a lock-free barrier exists within the JDK, I couldn't find it. Both CyclicBarrier and CoundDownLatch use locks internally from what I could find.

This is my slightly abbreviated code. Just to be clear, this code will only allow one thread to wait at a time. It could be modified to allow for multiple awaiters/consumers by using some type of atomic collection to store multiple owner (a ConcurrentMap may work).

I have used this code and it seems to work. I have not tested it extensively. I suggest you read the documentation for LockSupport before use.

/* I release this code into the public domain.
 * http://unlicense.org/UNLICENSE
 */

import java.util.concurrent.atomic.AtomicReferenceFieldUpdater;
import java.util.concurrent.locks.LockSupport;

/**
 * A simple barrier for awaiting a signal.
 * Only one thread at a time may await the signal.
 */
public class SignalBarrier {
    /**
     * The Thread that is currently awaiting the signal.
     * !!! Don't call this directly !!!
     */
    @SuppressWarnings("unused")
    private volatile Thread _owner;

    /** Used to update the owner atomically */
    private static final AtomicReferenceFieldUpdater<SignalBarrier, Thread> ownerAccess =
        AtomicReferenceFieldUpdater.newUpdater(SignalBarrier.class, Thread.class, "_owner");

    /** Create a new SignalBarrier without an owner. */
    public SignalBarrier() {
        _owner = null;
    }

    /**
     * Signal the owner that the barrier is ready.
     * This has no effect if the SignalBarrer is unowned.
     */
    public void signal() {
        // Remove the current owner of this barrier.
        Thread t = ownerAccess.getAndSet(this, null);

        // If the owner wasn't null, unpark it.
        if (t != null) {
            LockSupport.unpark(t);
        }
    }

    /**
     * Claim the SignalBarrier and block until signaled.
     *
     * @throws IllegalStateException If the SignalBarrier already has an owner.
     * @throws InterruptedException If the thread is interrupted while waiting.
     */
    public void await() throws InterruptedException {
        // Get the thread that would like to await the signal.
        Thread t = Thread.currentThread();

        // If a thread is attempting to await, the current owner should be null.
        if (!ownerAccess.compareAndSet(this, null, t)) {
            throw new IllegalStateException("A second thread tried to acquire a signal barrier that is already owned.");
        }

        // The current thread has taken ownership of this barrier.
        // Park the current thread until the signal. Record this
        // signal barrier as the 'blocker'.
        LockSupport.park(this);
        // If a thread has called #signal() the owner should already be null.
        // However the documentation for LockSupport.unpark makes it clear that
        // threads can wake up for absolutely no reason. Do a compare and set
        // to make sure we don't wipe out a new owner, keeping in mind that only
        // thread should be awaiting at any given moment!
        ownerAccess.compareAndSet(this, t, null);

        // Check to see if we've been unparked because of a thread interrupt.
        if (t.isInterrupted())
            throw new InterruptedException();
    }

    /**
     * Claim the SignalBarrier and block until signaled or the timeout expires.
     *
     * @throws IllegalStateException If the SignalBarrier already has an owner.
     * @throws InterruptedException If the thread is interrupted while waiting.
     *
     * @param timeout The timeout duration in nanoseconds.
     * @return The timeout minus the number of nanoseconds that passed while waiting.
     */
    public long awaitNanos(long timeout) throws InterruptedException {
        if (timeout <= 0)
            return 0;
        // Get the thread that would like to await the signal.
        Thread t = Thread.currentThread();

        // If a thread is attempting to await, the current owner should be null.
        if (!ownerAccess.compareAndSet(this, null, t)) {
            throw new IllegalStateException("A second thread tried to acquire a signal barrier is already owned.");
        }

        // The current thread owns this barrier.
        // Park the current thread until the signal. Record this
        // signal barrier as the 'blocker'.
        // Time the park.
        long start = System.nanoTime();
        LockSupport.parkNanos(this, timeout);
        ownerAccess.compareAndSet(this, t, null);
        long stop = System.nanoTime();

        // Check to see if we've been unparked because of a thread interrupt.
        if (t.isInterrupted())
            throw new InterruptedException();

        // Return the number of nanoseconds left in the timeout after what we
        // just waited.
        return Math.max(timeout - stop + start, 0L);
    }
}

To give a vague example of usage, I'll adopt james large's example:

SignalBarrier barrier = new SignalBarrier();

Consumer thread (singular, not plural!):

try {
    while(!conditionIsTrue()) {
        barrier.await();
    }
    doSomethingThatRequiresConditionToBeTrue();
} catch (InterruptedException e) {
    handleInterruption();
}

Producer thread(s):

doSomethingThatMakesConditionTrue();
barrier.signal();

PowerShell 3 has the $PSScriptRoot automatic variable:

Contains the directory from which a script is being run.

In Windows PowerShell 2.0, this variable is valid only in script modules (.psm1). Beginning in Windows PowerShell 3.0, it is valid in all scripts.

Don't be fooled by the poor wording. PSScriptRoot is the directory of the current file.

In PowerShell 2, you can calculate the value of $PSScriptRoot yourself:

# PowerShell v2
$PSScriptRoot = Split-Path -Parent -Path $MyInvocation.MyCommand.Definition

My awk version is 3.1.5.

Yes, the input file is space separated, no tabs.

According to arutaku's answer, here's what I tried that worked:

awk '$8 ~ "ClNonZ"{ print $3; }' test  
0.180467091
0.010615711
0.492569002


$ awk '$8 ~ "ClNonZ" { print $3}' test  
0.180467091
0.010615711
0.492569002

What didn't work(I don't know why and maybe due to my awk version:),

$awk '$8 ~ "^ClNonZ$"{ print $3; }' test
$awk '$8 == "ClNonZ" { print $3 }' test

Thank you all for your answers, comments and help!

You can disconnect everyone and roll back their transactions with:

alter database [MyDatbase] set single_user with rollback immediate

After that, you can safely drop the database :)

Here is a component that incorporates much of this by lovasoa: https://github.com/lovasoa/react-contenteditable/blob/master/index.js

He shims the event in the emitChange

emitChange: function(evt){
    var html = this.getDOMNode().innerHTML;
    if (this.props.onChange && html !== this.lastHtml) {
        evt.target = { value: html };
        this.props.onChange(evt);
    }
    this.lastHtml = html;
}

I'm using a similar approach successfully

Summary

As mentioned by Ignacio, it updates your .config for you after you update the kernel source, e.g. with git pull.

It tries to keep your existing options.

Having a script for that is helpful because:

• new options may have been added, or old ones removed

• the kernel's Kconfig configuration format has options that:

  • imply one another via select
  • depend on another via depends

  Those option relationships make manual config resolution even harder.

Let's modify .config manually to understand how it resolves configurations

First generate a default configuration with:

make defconfig

Now edit the generated .config file manually to emulate a kernel update and run:

make oldconfig

to see what happens. Some conclusions:

1. Lines of type:

   # CONFIG_XXX is not set
   

   are not mere comments, but actually indicate that the parameter is not set.

   For example, if we remove the line:

   # CONFIG_DEBUG_INFO is not set
   

   and run make oldconfig, it will ask us:

   Compile the kernel with debug info (DEBUG_INFO) [N/y/?] (NEW)
   

   When it is over, the .config file will be updated.

   If you change any character of the line, e.g. to # CONFIG_DEBUG_INFO, it does not count.

2. Lines of type:

   # CONFIG_XXX is not set
   

   are always used for the negation of a property, although:

   CONFIG_XXX=n
   

   is also understood as the negation.

   For example, if you remove # CONFIG_DEBUG_INFO is not set and answer:

   Compile the kernel with debug info (DEBUG_INFO) [N/y/?] (NEW)
   

   with N, then the output file contains:

   # CONFIG_DEBUG_INFO is not set
   

   and not:

   CONFIG_DEBUG_INFO=n
   

   Also, if we manually modify the line to:

   CONFIG_DEBUG_INFO=n
   

   and run make oldconfig, then the line gets modified to:

   # CONFIG_DEBUG_INFO is not set
   

   without oldconfig asking us.

3. Configs whose dependencies are not met, do not appear on the .config. All others do.

   For example, set:

   CONFIG_DEBUG_INFO=y
   

   and run make oldconfig. It will now ask us for: DEBUG_INFO_REDUCED, DEBUG_INFO_SPLIT, etc. configs.

   Those properties did not appear on the defconfig before.

   If we look under lib/Kconfig.debug where they are defined, we see that they depend on DEBUG_INFO:

   config DEBUG_INFO_REDUCED
       bool "Reduce debugging information"
       depends on DEBUG_INFO
   

   So when DEBUG_INFO was off, they did not show up at all.

4. Configs which are selected by turned on configs are automatically set without asking the user.

   For example, if CONFIG_X86=y and we remove the line:

   CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
   

   and run make oldconfig, the line gets recreated without asking us, unlike DEBUG_INFO.

   This happens because arch/x86/Kconfig contains:

   config X86
       def_bool y
       [...]
       select ARCH_MIGHT_HAVE_PC_PARPORT
   

   and select forces that option to be true. See also: https://unix.stackexchange.com/questions/117521/select-vs-depends-in-kernel-kconfig

5. Configs whose constraints are not met are asked for.

   For example, defconfig had set:

   CONFIG_64BIT=y
   CONFIG_RCU_FANOUT=64
   

   If we edit:

   CONFIG_64BIT=n
   

   and run make oldconfig, it will ask us:

   Tree-based hierarchical RCU fanout value (RCU_FANOUT) [32] (NEW)
   

   This is because RCU_FANOUT is defined at init/Kconfig as:

   config RCU_FANOUT
       int "Tree-based hierarchical RCU fanout value"
       range 2 64 if 64BIT
       range 2 32 if !64BIT
   

   Therefore, without 64BIT, the maximum value is 32, but we had 64 set on the .config, which would make it inconsistent.

Bonuses

make olddefconfig sets every option to their default value without asking interactively. It gets run automatically on make to ensure that the .config is consistent in case you've modified it manually like we did. See also: https://serverfault.com/questions/116299/automatically-answer-defaults-when-doing-make-oldconfig-on-a-kernel-tree

make alldefconfig is like make olddefconfig, but it also accepts a config fragment to merge. This target is used by the merge_config.sh script: https://stackoverflow.com/a/39440863/895245

And if you want to automate the .config modification, that is not too simple: How do you non-interactively turn on features in a Linux kernel .config file?

You can also install awscli and use it to get all the info you wish:

AWS_DEFAULT_REGION=your-region aws ec2 describe-instances

You'll get lots of output so be sure to grep by your idetifier such as ip and print some more lines:

AWS_DEFAULT_REGION=your-region aws ec2 describe-instances | grep your-ip -A 10 | grep InstanceId

There are various ways to print size of an array. Here are the meanings of all:

Let’s say our array is my @arr = (3,4);

Method 1: scalar

This is the right way to get the size of arrays.

print scalar @arr;  # Prints size, here 2

Method 2: Index number

$#arr gives the last index of an array. So if array is of size 10 then its last index would be 9.

print $#arr;     # Prints 1, as last index is 1
print $#arr + 1; # Adds 1 to the last index to get the array size

We are adding 1 here, considering the array as 0-indexed. But, if it's not zero-based then, this logic will fail.

perl -le 'local $[ = 4; my @arr = (3, 4); print $#arr + 1;'   # prints 6

The above example prints 6, because we have set its initial index to 4. Now the index would be 5 and 6, with elements 3 and 4 respectively.

Method 3:

When an array is used in a scalar context, then it returns the size of the array

my $size = @arr;
print $size;   # Prints size, here 2

Actually, method 3 and method 1 are same.

NSString * path = [[NSBundle mainBundle] pathForResource:@"filename" ofType:@"jpg"];
UIImage * img = [[UIImage alloc]initWithContentsOfFile:path];
CGImageRef image = [img CGImage];
CFDataRef data = CGDataProviderCopyData(CGImageGetDataProvider(image));
const unsigned char * buffer =  CFDataGetBytePtr(data);

Taken from the bottom of QUnit

function triggerEvent( elem, type, event ) {
    if ( $.browser.mozilla || $.browser.opera ) {
        event = document.createEvent("MouseEvents");
        event.initMouseEvent(type, true, true, elem.ownerDocument.defaultView,
            0, 0, 0, 0, 0, false, false, false, false, 0, null);
        elem.dispatchEvent( event );
    } else if ( $.browser.msie ) {
        elem.fireEvent("on"+type);
    }
}

You can, of course, replace the $.browser stuff to your own browser detection methods to make it jQuery independent.

To use this function:

var event;
triggerEvent(ele, "change", event);

This will basically fire the real DOM event as if something had actually changed.

This depends very much on the specific case. Preferably, I think one should use the switch over the if-else if there are many nested if-elses.

The question is how much is many?

Yesterday I was asking myself the same question:

public enum ProgramType {
    NEW, OLD
}

if (progType == OLD) {
    // ...
} else if (progType == NEW) {
    // ...
}

if (progType == OLD) {
    // ...
} else {
    // ...
}

switch (progType) {
case OLD:
    // ...
    break;
case NEW:
    // ...
    break;
default:
    break;
}

In this case, the 1st if has an unnecessary second test. The 2nd feels a little bad because it hides the NEW.

I ended up choosing the switch because it just reads better.

Get the graphviz-2.24.msi Graphviz.org. Then get zgrviewer.

Zgrviewer requires java (probably 1.5+). You might have to set the paths to the Graphviz binaries in Zgrviewer's preferences.

File -> Open -> Open with dot -> SVG pipeline (standard) ... Pick your .dot file.

You can zoom in, export, all kinds of fun stuff.

For anyone who is looking a way to watch a specific file to exist in VBS:

Function bIsFileDownloaded(strPath, timeout)
  Dim FSO, fileIsDownloaded
  set FSO = CreateObject("Scripting.FileSystemObject")
  fileIsDownloaded = false
  limit = DateAdd("s", timeout, Now)
  Do While Now < limit
    If FSO.FileExists(strPath) Then : fileIsDownloaded = True : Exit Do : End If
    WScript.Sleep 1000      
  Loop
  Set FSO = Nothing
  bIsFileDownloaded = fileIsDownloaded
End Function

Usage:

FileName = "C:\test.txt"
fileIsDownloaded = bIsFileDownloaded(FileName, 5) ' keep watching for 5 seconds

If fileIsDownloaded Then
  WScript.Echo Now & " File is Downloaded: " & FileName
Else
  WScript.Echo Now & " Timeout, file not found: " & FileName 
End If

changing:

collection.fetch({ data: { page: 1} });

to:

collection.fetch({ data: $.param({ page: 1}) });

So with out over doing it, this is called with your {data: {page:1}} object as options

Backbone.sync = function(method, model, options) {
    var type = methodMap[method];

    // Default JSON-request options.
    var params = _.extend({
      type:         type,
      dataType:     'json',
      processData:  false
    }, options);

    // Ensure that we have a URL.
    if (!params.url) {
      params.url = getUrl(model) || urlError();
    }

    // Ensure that we have the appropriate request data.
    if (!params.data && model && (method == 'create' || method == 'update')) {
      params.contentType = 'application/json';
      params.data = JSON.stringify(model.toJSON());
    }

    // For older servers, emulate JSON by encoding the request into an HTML-form.
    if (Backbone.emulateJSON) {
      params.contentType = 'application/x-www-form-urlencoded';
      params.processData = true;
      params.data        = params.data ? {model : params.data} : {};
    }

    // For older servers, emulate HTTP by mimicking the HTTP method with `_method`
    // And an `X-HTTP-Method-Override` header.
    if (Backbone.emulateHTTP) {
      if (type === 'PUT' || type === 'DELETE') {
        if (Backbone.emulateJSON) params.data._method = type;
        params.type = 'POST';
        params.beforeSend = function(xhr) {
          xhr.setRequestHeader('X-HTTP-Method-Override', type);
        };
      }
    }

    // Make the request.
    return $.ajax(params);
};

So it sends the 'data' to jQuery.ajax which will do its best to append whatever params.data is to the URL.

Perhaps I am missing something, but although the other solutions do call the parent scope function there is no ability to pass arguments from directive code, this is because the update-fn is calling updateFn() with fixed parameters, in for example {msg: "Hello World"}. A slight change allows the directive to pass arguments, which I would think is far more useful.

<test color1="color1" update-fn="updateFn"></test>

Note the HTML is passing a function reference, i.e., without () brackets.

JS

var app = angular.module('dr', []);

app.controller("testCtrl", function($scope) {
    $scope.color1 = "color";
    $scope.updateFn = function(msg) {        
        alert(msg);
    }
});

app.directive('test', function() {
    return {
        restrict: 'E',
        scope: {
            color1: '=',
            updateFn: '&'
        },
        // object is passed while making the call
        template: "<button ng-click='callUpdate()'>
            Click</button>",
        replace: true,        
        link: function(scope, elm, attrs) {       
          scope.callUpdate = function() {
            scope.updateFn()("Directive Args");
          }
        }
    }
});

So in the above, the HTML is calling local scope callUpdate function, which then 'fetches' the updateFn from the parent scope and calls the returned function with parameters that the directive can generate.

http://jsfiddle.net/mygknek2/

Just write

@section Scripts{
    <script src="@System.Web.Optimization.BundleTable.Bundles.ResolveBundleUrl("~/bundles/jqueryval")"></script>
}

As simple as this-

figure, plot(yourfigure);

Using LINQ to xml if you are using framework 3.5:

using System.Xml.Linq;

XDocument xmlFile = XDocument.Load("books.xml"); 

var query = from c in xmlFile.Elements("catalog").Elements("book")    
            select c; 

foreach (XElement book in query) 
{
   book.Attribute("attr1").Value = "MyNewValue";
}

xmlFile.Save("books.xml");

for(j = 0; j<=90; j = j+3)
{

}

j+3 will not assign the new value to j, add j=j+3 will assign the new value to j and the loop will move up by 3.

j++ is like saying j = j+1, so in that case your assigning the new value to j just like the one above.

setx FOOBAR ""

just causes the value of FOOBAR to be a null string. (Although, it shows with the set command with the "" so maybe double-quotes is the string.)

I used:

set FOOBAR=

and then FOOBAR was no longer listed in the set command. (Log-off was not required.)

Windows 7 32 bit, using the command prompt, non-administrator is what I used. (Not cmd or Windows + R, which might be different.)

BTW, I did not see the variable I created anywhere in the registry after I created it. I'm using RegEdit not as administrator.

Or you can do this without using Delay.

set /a "counter=0"

-> your for loop here

do (
   statement1
   statement2
   call :increaseby1
 )

:increaseby1
set /a "counter+=1"

<input type="hidden" id="date"/>
<script>document.getElementById("date").value = new Date().toJSON().slice(0,10)</script>

Hope, this would be of some help.

$('input[type=checkbox]').change(function () {
    if ($(this).prop("checked")) {
        //do the stuff that you would do when 'checked'

        return;
    }
    //Here do the stuff you want to do when 'unchecked'
});

The attribute packed means that the compiler will not add padding between fields of the struct. Padding is usually used to make fields aligned to their natural size, because some architectures impose penalties for unaligned access or don't allow it at all.

aligned(4) means that the struct should be aligned to an address that is divisible by 4.

Try the following:

grep -v -e '^$'

If U want commit to a new empty Repo ,You can checkout the new empty Repo and commit to new remote repo.
chekout a new empty Repo won't delete your local files.
try this: for example, remote repo url : https://example.com/SVNTest cd [YOUR PROJECT PATH] rm -rf .svn svn co https://example.com/SVNTest ../[YOUR PROJECT DIR NAME] svn add ./* svn ci -m"changed repo url"

If you want to get the exception "asynchronously", you could do:

  MyAsyncMethod().
    ContinueWith(t => Console.WriteLine(t.Exception),
        TaskContinuationOptions.OnlyOnFaulted);

This will allow you to deal with an exception on a thread other than the "main" thread. This means you don't have to "wait" for the call to MyAsyncMethod() from the thread that calls MyAsyncMethod; but, still allows you to do something with an exception--but only if an exception occurs.

Update:

technically, you could do something similar with await:

try
{
    await MyAsyncMethod().ConfigureAwait(false);
}
catch (Exception ex)
{
    Trace.WriteLine(ex);
}

...which would be useful if you needed to specifically use try/catch (or using) but I find the ContinueWith to be a little more explicit because you have to know what ConfigureAwait(false) means.

Try this,

select to_char(sysdate,'dd') from dual; -> 08 (date)
select to_char(sysdate,'mm') from dual; -> 02 (month in number)
select to_char(sysdate,'yyyy') from dual; -> 2013 (Full year)

str_replace('"', "", $string);
str_replace("'", "", $string);

I assume you mean quotation marks?

Otherwise, go for some regex, this will work for html quotes for example:

preg_replace("/<!--.*?-->/", "", $string);

C-style quotes:

preg_replace("/\/\/.*?\n/", "\n", $string);

CSS-style quotes:

preg_replace("/\/*.*?\*\//", "", $string);

bash-style quotes:

preg-replace("/#.*?\n/", "\n", $string);

Etc etc...

I've made simple test of setInterval(func, milisec), because I was curious what happens when function time consumption is greater than interval duration.

setInterval will generally schedule next iteration just after the start of the previous iteration, unless the function is still ongoing. If so, setInterval will wait, till the function ends. As soon as it happens, the function is immediately fired again - there is no waiting for next iteration according to schedule (as it would be under conditions without time exceeded function). There is also no situation with parallel iterations running.

I've tested this on Chrome v23. I hope it is deterministic implementation across all modern browsers.

window.setInterval(function(start) {
    console.log('fired: ' + (new Date().getTime() - start));
    wait();
  }, 1000, new Date().getTime());

Console output:

fired: 1000    + ~2500 ajax call -.
fired: 3522    <------------------'
fired: 6032
fired: 8540
fired: 11048

The wait function is just a thread blocking helper - synchronous ajax call which takes exactly 2500 milliseconds of processing at the server side:

function wait() {
    $.ajax({
        url: "...",
        async: false
    });
}

With perl:

fg@erwin ~ $ perl -ne 'push @l, (split(/\s+/))[1]; END { print join(",", @l) . "\n" }' <<EOF
something1:    +12.0   (some unnecessary trailing data (this must go))
something2:    +15.5   (some more unnecessary trailing data)
something4:    +9.0   (some other unnecessary data)
something1:    +13.5  (blah blah blah)
EOF

+12.0,+15.5,+9.0,+13.5

This is my own implementation. I tried to make it the shortest an clearest way possible:

public static boolean isBraceBalanced(String braces) {
    Stack<Character> stack = new Stack<Character>();

    for(char c : braces.toCharArray()) {
        if(c == '(' || c == '[' || c == '{') {
            stack.push(c);
        } else if((c == ')' && (stack.isEmpty() || stack.pop() != '(')) ||
                  (c == ']' && (stack.isEmpty() || stack.pop() != '[')) ||
                  (c == '}' && (stack.isEmpty() || stack.pop() != '{'))) {
            return false;
        }
    }

    return stack.isEmpty();
}

for windows use & in between command also. Like,

  "scripts": {
    "start": "SET NODE_ENV=development & nodemon app/app.js",
  }

Very late but try this out:

SELECT ColumnID, Column1, value  --Do not change 'value' name. Leave it as it is.
FROM tbl_Sample  
CROSS APPLY STRING_SPLIT(Tags, ','); --'Tags' is the name of column containing comma separated values

So we were having this: tbl_Sample :

ColumnID|   Column1 |   Tags
--------|-----------|-------------
1       |   ABC     |   10,11,12    
2       |   PQR     |   20,21,22

After running this query:

ColumnID|   Column1 |   value
--------|-----------|-----------
1       |   ABC     |   10
1       |   ABC     |   11
1       |   ABC     |   12
2       |   PQR     |   20
2       |   PQR     |   21
2       |   PQR     |   22

Thanks!

I am working on TestNG Maven project, This worked for me by adding <resources> tag in pom.xml, this happens to be the path of my custom configuration file log4j2.xml.

<url>http://maven.apache.org</url>
<properties>
  <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
</properties>
<build>
  <resources>
    <resource>
      <directory>src/main/java/resources</directory>
      <filtering>true</filtering>
    </resource>
  </resources>
  <pluginManagement>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>3.0.0-M3</version>
        <configuration>
          <suiteXmlFiles>
            <suiteXmlFile>testng.xml</suiteXmlFile>
          </suiteXmlFiles>
        </configuration>
      </plugin>
    </plugins>
  </pluginManagement>
</build>
<dependencies>
  <dependency>

I don't like that much solutions based on multiplying text-shadows, it's not really flexible, it may work for a 2 pixels stroke where directions to add are 8, but with just 3 pixels stroke directions became 16, and so on... Not really confortable to manage.

The right tool exists, it's SVG <text> The browsers' support problem worth nothing in this case, 'cause the usage of text-shadow has its own support problem too, filter: progid:DXImageTransform can be used or IE < 10 but often doesn't work as expected.

To me the best solution remains SVG with a fallback in not-stroked text for older browser:

This kind of approuch works on pratically all versions of Chrome and Firefox, Safari since version 3.04, Opera 8, IE 9

Compared to text-shadow whose supports are: Chrome 4.0, FF 3.5, IE 10, Safari 4.0, Opera 9, it results even more compatible.

.stroke {_x000D_
  margin: 0;_x000D_
  font-family: arial;_x000D_
  font-size:70px;_x000D_
  font-weight: bold;_x000D_
  }_x000D_
  _x000D_
  svg {_x000D_
    display: block;_x000D_
  }_x000D_
  _x000D_
  text {_x000D_
    fill: black;_x000D_
    stroke: red;_x000D_
    stroke-width: 3;_x000D_
  }

<p class="stroke">_x000D_
  <svg xmlns="http://www.w3.org/2000/svg" width="700" height="72" viewBox="0 0 700 72">_x000D_
    <text x="0" y="70">Stroked text</text>_x000D_
  </svg>_x000D_
</p>

Both will generate the same columns when you run the migration. In rails console, you can see that this is the case:

:001 > Micropost
=> Micropost(id: integer, user_id: integer, created_at: datetime, updated_at: datetime)

The second command adds a belongs_to :user relationship in your Micropost model whereas the first does not. When this relationship is specified, ActiveRecord will assume that the foreign key is kept in the user_id column and it will use a model named User to instantiate the specific user.

The second command also adds an index on the new user_id column.

# database Intraction

$SQLServer = "YourServerName" #use Server\Instance for named SQL instances!
$SQLDBName = "YourDBName"
$SqlConnection = New-Object System.Data.SqlClient.SqlConnection
$SqlConnection.ConnectionString = "Server = $SQLServer; Database = $SQLDBName; 
User ID= YourUserID; Password= YourPassword" 
$SqlCmd = New-Object System.Data.SqlClient.SqlCommand
$SqlCmd.CommandText = 'StoredProcName'
$SqlCmd.Connection = $SqlConnection 
$SqlAdapter = New-Object System.Data.SqlClient.SqlDataAdapter
$SqlAdapter.SelectCommand = $SqlCmd 
$DataSet = New-Object System.Data.DataSet
$SqlAdapter.Fill($DataSet) 
$SqlConnection.Close() 

#End :database Intraction
clear

If, like me, none of the above quite works, it might be worth also specifically trying a lower TLS version alone. I had tried both of the following, but didn't seem to solve my problem:

[Net.ServicePointManager]::SecurityProtocol = "tls12, tls11, tls"
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 -bor [Net.SecurityProtocolType]::Tls11 -bor [Net.SecurityProtocolType]::Tls

In the end, it was only when I targetted TLS 1.0 (specifically remove 1.1 and 1.2 in the code) that it worked:

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls

The local server (that this was being attempted on) is fine with TLS 1.2, although the remote server (which was previously "confirmed" as fine for TLS 1.2 by a 3rd party) seems not to be.

Hope this helps someone.

If you want to enumerate all possible subsets have a look at this paper. They discuss different approaches such as lexicographical order, gray coding and the banker's sequence. They give an example implementation of the banker's sequence and discuss different characteristics of the solutions e.g. performance.

The book Java Generics and Collections has this information (pages: 188, 211, 222, 240).

List implementations:

                      get  add  contains next remove(0) iterator.remove
ArrayList             O(1) O(1) O(n)     O(1) O(n)      O(n)
LinkedList            O(n) O(1) O(n)     O(1) O(1)      O(1)
CopyOnWrite-ArrayList O(1) O(n) O(n)     O(1) O(n)      O(n)

Set implementations:

                      add      contains next     notes
HashSet               O(1)     O(1)     O(h/n)   h is the table capacity
LinkedHashSet         O(1)     O(1)     O(1) 
CopyOnWriteArraySet   O(n)     O(n)     O(1) 
EnumSet               O(1)     O(1)     O(1) 
TreeSet               O(log n) O(log n) O(log n)
ConcurrentSkipListSet O(log n) O(log n) O(1)

Map implementations:

                      get      containsKey next     Notes
HashMap               O(1)     O(1)        O(h/n)   h is the table capacity
LinkedHashMap         O(1)     O(1)        O(1) 
IdentityHashMap       O(1)     O(1)        O(h/n)   h is the table capacity 
EnumMap               O(1)     O(1)        O(1) 
TreeMap               O(log n) O(log n)    O(log n) 
ConcurrentHashMap     O(1)     O(1)        O(h/n)   h is the table capacity 
ConcurrentSkipListMap O(log n) O(log n)    O(1)

Queue implementations:

                      offer    peek poll     size
PriorityQueue         O(log n) O(1) O(log n) O(1)
ConcurrentLinkedQueue O(1)     O(1) O(1)     O(n)
ArrayBlockingQueue    O(1)     O(1) O(1)     O(1)
LinkedBlockingQueue   O(1)     O(1) O(1)     O(1)
PriorityBlockingQueue O(log n) O(1) O(log n) O(1)
DelayQueue            O(log n) O(1) O(log n) O(1)
LinkedList            O(1)     O(1) O(1)     O(1)
ArrayDeque            O(1)     O(1) O(1)     O(1)
LinkedBlockingDeque   O(1)     O(1) O(1)     O(1)

The bottom of the javadoc for the java.util package contains some good links:

• Collections Overview has a nice summary table.
• Annotated Outline lists all of the implementations on one page.

Use traceback.extract_stack() if you want convenient access to module and function names and line numbers.

Use ''.join(traceback.format_stack()) if you just want a string that looks like the traceback.print_stack() output.

Notice that even with ''.join() you will get a multi-line string, since the elements of format_stack() contain \n. See output below.

Remember to import traceback.

Here's the output from traceback.extract_stack(). Formatting added for readability.

>>> traceback.extract_stack()
[
   ('<string>', 1, '<module>', None),
   ('C:\\Python\\lib\\idlelib\\run.py', 126, 'main', 'ret = method(*args, **kwargs)'),
   ('C:\\Python\\lib\\idlelib\\run.py', 353, 'runcode', 'exec(code, self.locals)'),
   ('<pyshell#1>', 1, '<module>', None)
]

Here's the output from ''.join(traceback.format_stack()). Formatting added for readability.

>>> ''.join(traceback.format_stack())
'  File "<string>", line 1, in <module>\n
   File "C:\\Python\\lib\\idlelib\\run.py", line 126, in main\n
       ret = method(*args, **kwargs)\n
   File "C:\\Python\\lib\\idlelib\\run.py", line 353, in runcode\n
       exec(code, self.locals)\n  File "<pyshell#2>", line 1, in <module>\n'

In general, the following regular expression fragment is what you are looking for:

"(.*?)"

This uses the non-greedy *? operator to capture everything up to but not including the next double quote. Then, you use a language-specific mechanism to extract the matched text.

In Python, you could do:

>>> import re
>>> string = '"Foo Bar" "Another Value"'
>>> print re.findall(r'"(.*?)"', string)
['Foo Bar', 'Another Value']

I know that it's a bit old topic but, here is another thing you can do. I work on a developer VM with no internet access and quite limited free disk space, so I made use of the java installed on it.

Compile small java program that prints regex matches to the console. Put the jar somewhere on your system, create a batch to execute it and add the folder to your PATH variable:

JGrep.java:

package com.jgrep;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class JGrep {

    public static void main(String[] args) throws FileNotFoundException, IOException {
        int printGroup = -1;
        if (args.length < 2) {
            System.out.println("Invalid arguments. Usage:");
            System.out.println("jgrep [...-MODIFIERS] [PATTERN] [FILENAME]");
            System.out.println("Available modifiers:");
            System.out.println(" -printGroup            - will print the given group only instead of the whole match. Eg: -printGroup=1");
            System.out.println("Current arguments:");
            for (int i = 0; i < args.length; i++) {
                System.out.println("args[" + i + "]=" + args[i]);
            }
            return;
        }
        Pattern pattern = null;
        String filename = args[args.length - 1];
        String patternArg = args[args.length - 2];        
        pattern = Pattern.compile(patternArg);

        int argCount = 2;
        while (args.length - argCount - 1 >= 0) {
            String arg = args[args.length - argCount - 1];
            argCount++;
            if (arg.startsWith("-printGroup=")) {
                printGroup = Integer.parseInt(arg.substring("-printGroup=".length()));
            }
        }
        StringBuilder sb = new StringBuilder();
        try (BufferedReader br = new BufferedReader(new FileReader(filename))) {
            sb = new StringBuilder();
            String line = br.readLine();

            while (line != null) {
                sb.append(line);
                sb.append(System.lineSeparator());
                line = br.readLine();
            }
        }
        Matcher matcher = pattern.matcher(sb.toString());
        int matchesCount = 0;
        while (matcher.find()) {
            if (printGroup > 0) {
                System.out.println(matcher.group(printGroup));
            } else {
                System.out.println(matcher.group());
            }
            matchesCount++;
        }
        System.out.println("----------------------------------------");
        System.out.println("File: " + filename);
        System.out.println("Pattern: " + pattern.pattern());
        System.out.println("PrintGroup: " + printGroup);
        System.out.println("Matches: " + matchesCount);
    }
}

c:\jgrep\jgrep.bat (together with jgrep.jar):

@echo off
java -cp c:\jgrep\jgrep.jar com.jgrep.JGrep %*

and add c:\jgrep in the end of the PATH environment variable.

Now simply call jgrep "expression" file.txt from anywhere.

I needed to print some specific groups from my expression so I added a modifier and call it like jgrep -printGroup=1 "expression" file.txt.

What the PHP Notice means and how to reproduce it:

If you send a PHP array into a function that expects a string like: echo or print, then the PHP interpreter will convert your array to the literal string Array, throw this Notice and keep going. For example:

php> print(array(1,2,3))

PHP Notice:  Array to string conversion in 
/usr/local/lib/python2.7/dist-packages/phpsh/phpsh.php(591) :
eval()'d code on line 1
Array

In this case, the function print dumps the literal string: Array to stdout and then logs the Notice to stderr and keeps going.

Another example in a PHP script:

<?php
    $stuff = array(1,2,3);
    print $stuff;  //PHP Notice:  Array to string conversion in yourfile on line 3
?>

Correction 1: use foreach loop to access array elements

http://php.net/foreach

$stuff = array(1,2,3);
foreach ($stuff as $value) {
    echo $value, "\n";
}

Prints:

1
2
3

Or along with array keys

$stuff = array('name' => 'Joe', 'email' => '[email protected]');
foreach ($stuff as $key => $value) {
    echo "$key: $value\n";
}

Prints:

name: Joe
email: [email protected]

Note that array elements could be arrays as well. In this case either use foreach again or access this inner array elements using array syntax, e.g. $row['name']

Correction 2: Joining all the cells in the array together:

In case it's just a plain 1-demensional array, you can simply join all the cells into a string using a delimiter:

<?php
    $stuff = array(1,2,3);
    print implode(", ", $stuff);    //prints 1, 2, 3
    print join(',', $stuff);        //prints 1,2,3

Correction 3: Stringify an array with complex structure:

In case your array has a complex structure but you need to convert it to a string anyway, then use http://php.net/json_encode

$stuff = array('name' => 'Joe', 'email' => '[email protected]');
print json_encode($stuff);

Prints

{"name":"Joe","email":"[email protected]"}

A quick peek into array structure: use the builtin php functions

If you want just to inspect the array contents for the debugging purpose, use one of the following functions. Keep in mind that var_dump is most informative of them and thus usually being preferred for the purpose

• http://php.net/print_r
• http://php.net/var_dump
• http://php.net/var_export

examples

$stuff = array(1,2,3);
print_r($stuff);
$stuff = array(3,4,5);
var_dump($stuff);

Prints:

Array
(
    [0] => 1
    [1] => 2
    [2] => 3
)
array(3) {
  [0]=>
  int(3)
  [1]=>
  int(4)
  [2]=>
  int(5)
}

Try File > New > Project... > Android Project From Existing Code. Don't copy your project from pc into workspace, copy it elsewhere and let the eclipse copy it into workspace by menu commands above and checking copy in existing workspace.

You can create a new keystore, but the Android Market wont allow you to upload the apk as an update - worse still, if you try uploading the apk as a new app it will not allow it either as it knows there is a 'different' version of the same apk already in the market even if you delete your previous version from the market

Do your absolute best to find that keystore!!

When you find it, email it to yourself so you have a copy on your gmail that you can go and get in the case you loose it from your hard drive!

Your Question contains the first step, but you need width and height. you can get the width and height of the screen. Here is a small edit

//gets the screen width and height
double Width = MediaQuery.of(context).size.width;
double Height = MediaQuery.of(context).size.height;

Widget background = new Image.asset(
  asset.background,
  fit: BoxFit.fill,
  width: Width,
  height: Height,
);

return new Stack(
  children: <Widget>[
    background,
    foreground,
  ],
);

You can also use Width and Height to size other objects based on screen size.

ex: width: Height/2, height: Height/2 //using height for both keeps aspect ratio

It is not necessary to specify a transform or have crazy subdirectory paths. After much troubleshooting I isolated it to this "simple" rule (is it a bug?)...

If your bundle path does not start with relative root of the items being included, then the web application root will not be taken into account.

Sounds like more of a bug to me, but anyway that's how you fix it with the current .NET 4.51 version. Perhaps the other answers were necessary on older ASP.NET builds, can't say don't have time to retrospectively test all that.

To clarify, here is an example:

I have these files...

~/Content/Images/Backgrounds/Some_Background_Tile.gif
~/Content/Site.css  - references the background image relatively, i.e. background: url('Images/...')

Then setup the bundle like...

BundleTable.Add(new StyleBundle("~/Bundles/Styles").Include("~/Content/Site.css"));

And render it like...

@Styles.Render("~/Bundles/Styles")

And get the "behaviour" (bug), the CSS files themselves have the application root (e.g. "http://localhost:1234/MySite/Content/Site.css") but the CSS image within all start "/Content/Images/..." or "/Images/..." depending on whether I add the transform or not.

Even tried creating the "Bundles" folder to see if it was to do with the path existing or not, but that didn't change anything. The solution to the problem is really the requirement that the name of the bundle must start with the path root.

Meaning this example is fixed by registering and rendering the bundle path like..

BundleTable.Add(new StyleBundle("~/Content/StylesBundle").Include("~/Content/Site.css"));
...
@Styles.Render("~/Content/StylesBundle")

So of course you could say this is RTFM, but I am quite sure me and others picked-up this "~/Bundles/..." path from the default template or somewhere in documentation at MSDN or ASP.NET web site, or just stumbled upon it because actually it's a quite logical name for a virtual path and makes sense to choose such virtual paths which do not conflict with real directories.

Anyway, that's the way it is. Microsoft see no bug. I don't agree with this, either it should work as expected or some exception should be thrown, or an additional override to adding the bundle path which opts to include the application root or not. I can't imagine why anyone would not want the application root included when there was one (normally unless you installed your web site with a DNS alias/default web site root). So actually that should be the default anyway.

You can send some flag to stop while loop in server

for example

Server side:

import socket
s = socket.socket()
s.bind(("localhost", 5000))
s.listen(1)
c,a = s.accept()
filetodown = open("img.png", "wb")
while True:
   print("Receiving....")
   data = c.recv(1024)
   if data == b"DONE":
           print("Done Receiving.")
           break
   filetodown.write(data)
filetodown.close()
c.send("Thank you for connecting.")
c.shutdown(2)
c.close()
s.close()
#Done :)

Client side:

import socket
s = socket.socket()
s.connect(("localhost", 5000))
filetosend = open("img.png", "rb")
data = filetosend.read(1024)
while data:
    print("Sending...")
    s.send(data)
    data = filetosend.read(1024)
filetosend.close()
s.send(b"DONE")
print("Done Sending.")
print(s.recv(1024))
s.shutdown(2)
s.close()
#Done :)

list is mutable

Change

last_list=last_list.append(p.last_name)

to

last_list.append(p.last_name)

will work

I have the following config in my private project:

git config alias.auto 'commit -a -m "changes made from [device name]"'

That way, when I'm in a hurry I do

git auto
git push

And at least I know what device the commit was made from.

If not done yet, you need to integrate Tomcat in your Servers view. Rightclick there and choose New > Server. Select the appropriate Tomcat version from the list and complete the wizard.

When you create a new Dynamic Web Project, you should select the integrated server from the list as Targeted Runtime in the 1st wizard step.

Or when you have an existing Dynamic Web Project, you can set/change it in Targeted Runtimes entry in project's properties. Eclipse will then automagically add all its libraries to the build path (without having a copy of them in the project!).

http://ora-01775.ora-code.com/ suggests:

ORA-01775: looping chain of synonyms
Cause: Through a series of CREATE synonym statements, a synonym was defined that referred to itself. For example, the following definitions are circular:
CREATE SYNONYM s1 for s2 CREATE SYNONYM s2 for s3 CREATE SYNONYM s3 for s1
Action: Change one synonym definition so that it applies to a base table or view and retry the operation.

To check the status of Hyper-v in Windows 10,

right click <"start"> ? Run ? OptionalFeatures.exe, ? look for the "Hyper-V" option.

The box should be empty, not checked or shaded.

Make sure to fully power down and reboot the host after changing the Hyper-v setting.

PS

Docker known for activating this "Hyper-V" without asking for user opinion and then Oracle VirtualBox does not want to work.

empty and isset should do it.

if(!isset($_POST['submit'])) exit();

$vars = array('login', 'password','confirm', 'name', 'email', 'phone');
$verified = TRUE;
foreach($vars as $v) {
   if(!isset($_POST[$v]) || empty($_POST[$v])) {
      $verified = FALSE;
   }
}
if(!$verified) {
  //error here...
  exit();
}
//process here...

You can use window.postMessage to call a function between page and his iframe (cross domain or not).

Documentation

page.html

<!DOCTYPE html>
<html>
<head>
    <title>Page with an iframe</title>
    <meta charset="UTF-8" />
    <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
    <script>
    var Page = {
        id:'page',
        variable:'This is the page.'
    };

    $(window).on('message', function(e) {
        var event = e.originalEvent;
        if(window.console) {
            console.log(event);
        }
        alert(event.origin + '\n' + event.data);
    });
    function iframeReady(iframe) {
        if(iframe.contentWindow.postMessage) {
            iframe.contentWindow.postMessage('Hello ' + Page.id, '*');
        }
    }
    </script>
</head>
<body>
    <h1>Page with an iframe</h1>
    <iframe src="iframe.html" onload="iframeReady(this);"></iframe>
</body>
</html>

iframe.html

<!DOCTYPE html>
<html>
<head>
    <title>iframe</title>
    <meta charset="UTF-8" />
    <script src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
    <script>
    var Page = {
        id:'iframe',
        variable:'The iframe.'
    };

    $(window).on('message', function(e) {
        var event = e.originalEvent;
        if(window.console) {
            console.log(event);
        }
        alert(event.origin + '\n' + event.data);
    });
    $(window).on('load', function() {
        if(window.parent.postMessage) {
            window.parent.postMessage('Hello ' + Page.id, '*');
        }
    });
    </script>
</head>
<body>
    <h1>iframe</h1>
    <p>It's the iframe.</p>
</body>
</html>

Just store the index generated in a variable, and then access the array using this varaible:

int idx = new Random().nextInt(fruits.length);
String random = (fruits[idx]);

P.S. I usually don't like generating new Random object per randoization - I prefer using a single Random in the program - and re-use it. It allows me to easily reproduce a problematic sequence if I later find any bug in the program.

According to this approach, I will have some variable Random r somewhere, and I will just use:

int idx = r.nextInt(fruits.length)

However, your approach is OK as well, but you might have hard time reproducing a specific sequence if you need to later on.

I have two demos, one with jQuery and one without. Neither use date functions and are about as simple as it gets.

Demo with vanilla JavaScript

function startTimer(duration, display) {_x000D_
    var timer = duration, minutes, seconds;_x000D_
    setInterval(function () {_x000D_
        minutes = parseInt(timer / 60, 10);_x000D_
        seconds = parseInt(timer % 60, 10);_x000D_
_x000D_
        minutes = minutes < 10 ? "0" + minutes : minutes;_x000D_
        seconds = seconds < 10 ? "0" + seconds : seconds;_x000D_
_x000D_
        display.textContent = minutes + ":" + seconds;_x000D_
_x000D_
        if (--timer < 0) {_x000D_
            timer = duration;_x000D_
        }_x000D_
    }, 1000);_x000D_
}_x000D_
_x000D_
window.onload = function () {_x000D_
    var fiveMinutes = 60 * 5,_x000D_
        display = document.querySelector('#time');_x000D_
    startTimer(fiveMinutes, display);_x000D_
};

<body>_x000D_
    <div>Registration closes in <span id="time">05:00</span> minutes!</div>_x000D_
</body>

Demo with jQuery

function startTimer(duration, display) {
    var timer = duration, minutes, seconds;
    setInterval(function () {
        minutes = parseInt(timer / 60, 10);
        seconds = parseInt(timer % 60, 10);

        minutes = minutes < 10 ? "0" + minutes : minutes;
        seconds = seconds < 10 ? "0" + seconds : seconds;

        display.text(minutes + ":" + seconds);

        if (--timer < 0) {
            timer = duration;
        }
    }, 1000);
}

jQuery(function ($) {
    var fiveMinutes = 60 * 5,
        display = $('#time');
    startTimer(fiveMinutes, display);
});

However if you want a more accurate timer that is only slightly more complicated:

function startTimer(duration, display) {_x000D_
    var start = Date.now(),_x000D_
        diff,_x000D_
        minutes,_x000D_
        seconds;_x000D_
    function timer() {_x000D_
        // get the number of seconds that have elapsed since _x000D_
        // startTimer() was called_x000D_
        diff = duration - (((Date.now() - start) / 1000) | 0);_x000D_
_x000D_
        // does the same job as parseInt truncates the float_x000D_
        minutes = (diff / 60) | 0;_x000D_
        seconds = (diff % 60) | 0;_x000D_
_x000D_
        minutes = minutes < 10 ? "0" + minutes : minutes;_x000D_
        seconds = seconds < 10 ? "0" + seconds : seconds;_x000D_
_x000D_
        display.textContent = minutes + ":" + seconds; _x000D_
_x000D_
        if (diff <= 0) {_x000D_
            // add one second so that the count down starts at the full duration_x000D_
            // example 05:00 not 04:59_x000D_
            start = Date.now() + 1000;_x000D_
        }_x000D_
    };_x000D_
    // we don't want to wait a full second before the timer starts_x000D_
    timer();_x000D_
    setInterval(timer, 1000);_x000D_
}_x000D_
_x000D_
window.onload = function () {_x000D_
    var fiveMinutes = 60 * 5,_x000D_
        display = document.querySelector('#time');_x000D_
    startTimer(fiveMinutes, display);_x000D_
};

<body>_x000D_
    <div>Registration closes in <span id="time"></span> minutes!</div>_x000D_
</body>

Now that we have made a few pretty simple timers we can start to think about re-usability and separating concerns. We can do this by asking "what should a count down timer do?"

• Should a count down timer count down? Yes
• Should a count down timer know how to display itself on the DOM? No
• Should a count down timer know to restart itself when it reaches 0? No
• Should a count down timer provide a way for a client to access how much time is left? Yes

So with these things in mind lets write a better (but still very simple) CountDownTimer

function CountDownTimer(duration, granularity) {
  this.duration = duration;
  this.granularity = granularity || 1000;
  this.tickFtns = [];
  this.running = false;
}

CountDownTimer.prototype.start = function() {
  if (this.running) {
    return;
  }
  this.running = true;
  var start = Date.now(),
      that = this,
      diff, obj;

  (function timer() {
    diff = that.duration - (((Date.now() - start) / 1000) | 0);

    if (diff > 0) {
      setTimeout(timer, that.granularity);
    } else {
      diff = 0;
      that.running = false;
    }

    obj = CountDownTimer.parse(diff);
    that.tickFtns.forEach(function(ftn) {
      ftn.call(this, obj.minutes, obj.seconds);
    }, that);
  }());
};

CountDownTimer.prototype.onTick = function(ftn) {
  if (typeof ftn === 'function') {
    this.tickFtns.push(ftn);
  }
  return this;
};

CountDownTimer.prototype.expired = function() {
  return !this.running;
};

CountDownTimer.parse = function(seconds) {
  return {
    'minutes': (seconds / 60) | 0,
    'seconds': (seconds % 60) | 0
  };
};

So why is this implementation better than the others? Here are some examples of what you can do with it. Note that all but the first example can't be achieved by the startTimer functions.

An example that displays the time in XX:XX format and restarts after reaching 00:00

An example that displays the time in two different formats

An example that has two different timers and only one restarts

An example that starts the count down timer when a button is pressed

Maybe you can use pandas crosstab function

test5 = pd.crosstab(index=faultdf['Site Name'], columns=faultdf[''Abuse/NFF''])

test5.plot(kind='bar', stacked=True)

The justify-self and justify-items properties are not implemented in flexbox. This is due to the one-dimensional nature of flexbox, and that there may be multiple items along the axis, making it impossible to justify a single item. To align items along the main, inline axis in flexbox you use the justify-content property.

Reference: Box alignment in CSS Grid Layout

You can use following format:

  <connectionStrings>
    <add name="ConStringBDName" connectionString="Data Source=serverpath;Initial Catalog=YourDataBaseName;Integrated Security=SSPI;" providerName="System.Data.SqlClient" />
  </connectionStrings>

Most probably you will fing connectionstring tag in web.config after <appSettings>

Try out this.

Yaml and Json are the simplest and most commonly used file formats to store settings/config. PyYaml can be used to parse yaml. Json is already part of python from 2.5. Yaml is a superset of Json. Json will solve most uses cases except multi line strings where escaping is required. Yaml takes care of these cases too.

>>> import json
>>> config = {'handler' : 'adminhandler.py', 'timeoutsec' : 5 }
>>> json.dump(config, open('/tmp/config.json', 'w'))
>>> json.load(open('/tmp/config.json'))   
{u'handler': u'adminhandler.py', u'timeoutsec': 5}

<select name="foo" id="foo">
 <option value="1">a</option>
 <option value="2">b</option>
 <option value="3">c</option>
  </select>
  <input type="button" id="button" value="Button" />
  });
  <script> ("#foo").val() </script>

which returns 1 if you have selected a and so on..

I created the following procedure:

if object_id('tool.create_insert', 'P') is null
begin
  exec('create procedure tool.create_insert as');
end;
go

alter procedure tool.create_insert(@schema    varchar(200) = 'dbo',
                                   @table     varchar(200),
                                   @where     varchar(max) = null,
                                   @top       int = null,
                                   @insert    varchar(max) output)
as
begin
  declare @insert_fields varchar(max),
          @select        varchar(max),
          @error         varchar(500),
          @query         varchar(max);

  declare @values table(description varchar(max));

  set nocount on;

  -- Get columns
  select @insert_fields = isnull(@insert_fields + ', ', '') + c.name,
         @select = case type_name(c.system_type_id)
                      when 'varchar' then isnull(@select + ' + '', '' + ', '') + ' isnull('''''''' + cast(' + c.name + ' as varchar) + '''''''', ''null'')'
                      when 'datetime' then isnull(@select + ' + '', '' + ', '') + ' isnull('''''''' + convert(varchar, ' + c.name + ', 121) + '''''''', ''null'')'
                      else isnull(@select + ' + '', '' + ', '') + 'isnull(cast(' + c.name + ' as varchar), ''null'')'
                    end
    from sys.columns c with(nolock)
         inner join sys.tables t with(nolock) on t.object_id = c.object_id
         inner join sys.schemas s with(nolock) on s.schema_id = t.schema_id
   where s.name = @schema
     and t.name = @table;

  -- If there's no columns...
  if @insert_fields is null or @select is null
  begin
    set @error = 'There''s no ' + @schema + '.' + @table + ' inside the target database.';
    raiserror(@error, 16, 1);
    return;
  end;

  set @insert_fields = 'insert into ' + @schema + '.' + @table + '(' + @insert_fields + ')';

  if isnull(@where, '') <> '' and charindex('where', ltrim(rtrim(@where))) < 1
  begin
    set @where = 'where ' + @where;
  end
  else
  begin
    set @where = '';
  end;

  set @query = 'select ' + isnull('top(' + cast(@top as varchar) + ')', '') + @select + ' from ' + @schema + '.' + @table + ' with (nolock) ' + @where;

  insert into @values(description)
  exec(@query);

  set @insert = isnull(@insert + char(10), '') + '--' + upper(@schema + '.' + @table);

  select @insert = @insert + char(10) + @insert_fields + char(10) + 'values(' + v.description + ');' + char(10) + 'go' + char(10)
    from @values v
   where isnull(v.description, '') <> '';
end;
go

Then you can use it that way:

declare @insert varchar(max),
        @part   varchar(max),
        @start  int,
        @end    int;

set @start = 1;

exec tool.create_insert @schema = 'dbo',
                        @table = 'myTable',
                        @where  = 'Fk_CompanyId = 1',
                        @insert = @insert output;

-- Print one line to avoid the maximum 8000 characters problem
while len(@insert) > 0
begin
  set @end = charindex(char(10), @insert);

  if @end = 0
  begin
    set @end = len(@insert) + 1;
  end;

  print substring(@insert, @start, @end - 1);
  set @insert = substring(@insert, @end + 1, len(@insert) - @end + 1);
end;

The output would be something like that:

--DBO.MYTABLE
insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(1, 'AMX', 1, 10.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(2, 'ABC', 1, 11.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(3, 'APEX', 1, 12.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(4, 'AMX', 1, 10.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(5, 'ABC', 1, 11.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(6, 'APEX', 1, 12.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(7, 'AMX', 2, 10.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(8, 'ABC', 2, 11.00);
go

insert into dbo.myTable(Pk_Id, ProductName, Fk_CompanyId, Price)
values(9, 'APEX', 2, 12.00);
go

If you just want to get a range of rows, use the @top parameter as bellow:

declare @insert varchar(max),
        @part   varchar(max),
        @start  int,
        @end    int;

set @start = 1;

exec tool.create_insert @schema = 'dbo',
                        @table = 'myTable',
                        @top    = 100,
                        @insert = @insert output;

-- Print one line to avoid the maximum 8000 characters problem
while len(@insert) > 0
begin
  set @end = charindex(char(10), @insert);

  if @end = 0
  begin
    set @end = len(@insert) + 1;
  end;

  print substring(@insert, @start, @end - 1);
  set @insert = substring(@insert, @end + 1, len(@insert) - @end + 1);
end;

When it comes to DiSaSteR's answer, I noticed a different behavior. textBox.Text shows the text in the TextBox as it was before the user entered a new character, while e.Text shows the single character the user just entered. One challenge is that this character might not get appended to the end, but it will be inserted at the carret position:

private void salary_texbox_PreviewTextInput(object sender, TextCompositionEventArgs e){
  Regex regex = new Regex ( "[^0-9]+" );

  string text;
  if (textBox.CaretIndex==textBox.Text.Length) {
    text = textBox.Text + e.Text;
  } else {
    text = textBox.Text.Substring(0, textBox.CaretIndex)  + e.Text + textBox.Text.Substring(textBox.CaretIndex);
  }

  if(regex.IsMatch(text)){
      MessageBox.Show("Error");
  }
}

For win7 chrome can be found at:

C:\Users\[UserName]\AppData\Local\Google\Chrome\Application\chrome.exe

For VS2017 click the little down arrow next to the run in debug/release mode button to find the "browse with..." option.

It's not a direct answer to the question, however I would suggest in most cases to simply set multiple classes to each element:

<div class="myclass one"></div>
<div class="myclass two></div>
<div class="myclass three"></div>

In this way you can set rules for all myclass elements and then more specific rules for one, two and three.

.myclass { color: #f00; }

.two { font-weight: bold; }

etc.

Right, there is no way to remove this 'no file choosen', even if you have a list of pre-upload files.

Simplest solution I've found (and works on IE, FF, CR) is the following

1. Hide your input and add a 'files' button
2. then call the 'files' button and ask him to bind fileupload (I'm using JQuery in this example)

$('.addfiles').on('click', function() { $('#fileupload').click();return false;});

<button class="addfiles">Add Files</button>_x000D_
<input id="fileupload" type="file" name="files[]" multiple style='display: none;'>

It's done, works perfectly :)

Fred

All the answers here use third party libraries while rendering HTML to an image can be relatively simple in pure Javascript. There is was even an article about it on the canvas section on MDN.

The trick is this:

• create an SVG with a foreignObject node containing your XHTML
• set the src of an image to the data url of that SVG
• drawImage onto the canvas
• set canvas data to target image.src

const {body} = document_x000D_
_x000D_
const canvas = document.createElement('canvas')_x000D_
const ctx = canvas.getContext('2d')_x000D_
canvas.width = canvas.height = 100_x000D_
_x000D_
const tempImg = document.createElement('img')_x000D_
tempImg.addEventListener('load', onTempImageLoad)_x000D_
tempImg.src = 'data:image/svg+xml,' + encodeURIComponent('<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100"><foreignObject width="100%" height="100%"><div xmlns="http://www.w3.org/1999/xhtml"><style>em{color:red;}</style><em>I</em> lick <span>cheese</span></div></foreignObject></svg>')_x000D_
_x000D_
const targetImg = document.createElement('img')_x000D_
body.appendChild(targetImg)_x000D_
_x000D_
function onTempImageLoad(e){_x000D_
  ctx.drawImage(e.target, 0, 0)_x000D_
  targetImg.src = canvas.toDataURL()_x000D_
}

Some things to note

• The HTML inside the SVG has to be XHTML
• For security reasons the SVG as data url of an image acts as an isolated CSS scope for the HTML since no external sources can be loaded. So a Google font for instance has to be inlined using a tool like this one.
• Even when the HTML inside the SVG exceeds the size of the image it wil draw onto the canvas correctly. But the actual height cannot be measured from that image. A fixed height solution will work just fine but dynamic height will require a bit more work. The best is to render the SVG data into an iframe (for isolated CSS scope) and use the resulting size for the canvas.

The sep='\t' can be use in many forms, for example if you want to read tab separated value: Example: I have a dataset tsv = tab separated value NOT comma separated value df = pd.read_csv('gapminder.tsv'). when you try to read this, it will give you an error because you have tab separated value not csv. so you need to give read csv a different parameter called sep='\t'.

Now you can read: df = pd.read_csv('gapminder.tsv, sep='\t'), with this you can read the it.

None of those will do any extra copying. Even if RVO isn't used, the new standard says that move construction is preferred to copy when doing returns I believe.

I do believe that your second example causes undefined behavior though because you're returning a reference to a local variable.

INSERT INTO Test([col1],[col2]) (
    SELECT 
        a.Name AS [col1],
        b.sub AS [col2] 
    FROM IdTable b 
    INNER JOIN Nametable a ON b.no = a.no
)

In case anyone else ends up here using Jupyter Notebooks, you just need

%matplotlib inline

Purpose of "%matplotlib inline"

Use this:

SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS RowNum FROM
    (SELECT DISTINCT id FROM table WHERE fid = 64) Base

and put the "output" of a query as the "input" of another.

Using CTE:

; WITH Base AS (
    SELECT DISTINCT id FROM table WHERE fid = 64
)

SELECT *, ROW_NUMBER() OVER (ORDER BY id) AS RowNum FROM Base

The two queries should be equivalent.

Technically you could

SELECT DISTINCT id, ROW_NUMBER() OVER (PARTITION BY id ORDER BY id) AS RowNum 
    FROM table
    WHERE fid = 64

but if you increase the number of DISTINCT fields, you have to put all these fields in the PARTITION BY, so for example

SELECT DISTINCT id, description,
    ROW_NUMBER() OVER (PARTITION BY id, description ORDER BY id) AS RowNum 
    FROM table
    WHERE fid = 64

I even hope you comprehend that you are going against standard naming conventions here, id should probably be a primary key, so unique by definition, so a DISTINCT would be useless on it, unless you coupled the query with some JOINs/UNION ALL...

You need to separate the arguments from the file path:

powershell.exe -noexit "& 'D:\Work\SQLExecutor.ps1 ' -gettedServerName 'MY-PC'"

Another option that may ease the syntax using the File parameter and positional parameters:

powershell.exe -noexit -file "D:\Work\SQLExecutor.ps1" "MY-PC"

With lodash:

const items = [
    { key: 'foo', value: 'bar' },
    { key: 'hello', value: 'world' }
];

const map = _.fromPairs(items.map(item => [item.key, item.val]));

// OR: if you want to index the whole item by key:
// const map = _.fromPairs(items.map(item => [item.key, item]));

The lodash fromPairs function reminds me about zip function in Python

Link to lodash

The accepted answer has some holes in it. The beauty of the SparseArray is that it allows gaps in the indeces. So, we could have two maps like so, in a SparseArray...

(0,true)
(250,true)

Notice the size here would be 2. If we iterate over size, we will only get values for the values mapped to index 0 and index 1. So the mapping with a key of 250 is not accessed.

for(int i = 0; i < sparseArray.size(); i++) {
   int key = sparseArray.keyAt(i);
   // get the object by the key.
   Object obj = sparseArray.get(key);
}

The best way to do this is to iterate over the size of your data set, then check those indeces with a get() on the array. Here is an example with an adapter where I am allowing batch delete of items.

for (int index = 0; index < mAdapter.getItemCount(); index++) {
     if (toDelete.get(index) == true) {
        long idOfItemToDelete = (allItems.get(index).getId());
        mDbManager.markItemForDeletion(idOfItemToDelete);
        }
    }

I think ideally the SparseArray family would have a getKeys() method, but alas it does not.

For some reason I was having trouble deleting the workspace from the command-line utility. Luckily I found Team Foundation Sidekicks 2010 (from this post) which is free and provides a GUI for viewing and deleting TFS workspaces, and many more useful TFS features.

First, let's clear up some terminology: "asynchronous" (async) means that it may yield control back to the calling thread before it starts. In an async method, those "yield" points are await expressions.

This is very different than the term "asynchronous", as (mis)used by the MSDN documentation for years to mean "executes on a background thread".

To futher confuse the issue, async is very different than "awaitable"; there are some async methods whose return types are not awaitable, and many methods returning awaitable types that are not async.

Enough about what they aren't; here's what they are:

• The async keyword allows an asynchronous method (that is, it allows await expressions). async methods may return Task, Task<T>, or (if you must) void.
• Any type that follows a certain pattern can be awaitable. The most common awaitable types are Task and Task<T>.

So, if we reformulate your question to "how can I run an operation on a background thread in a way that it's awaitable", the answer is to use Task.Run:

private Task<int> DoWorkAsync() // No async because the method does not need await
{
  return Task.Run(() =>
  {
    return 1 + 2;
  });
}

(But this pattern is a poor approach; see below).

But if your question is "how do I create an async method that can yield back to its caller instead of blocking", the answer is to declare the method async and use await for its "yielding" points:

private async Task<int> GetWebPageHtmlSizeAsync()
{
  var client = new HttpClient();
  var html = await client.GetAsync("http://www.example.com/");
  return html.Length;
}

So, the basic pattern of things is to have async code depend on "awaitables" in its await expressions. These "awaitables" can be other async methods or just regular methods returning awaitables. Regular methods returning Task/Task<T> can use Task.Run to execute code on a background thread, or (more commonly) they can use TaskCompletionSource<T> or one of its shortcuts (TaskFactory.FromAsync, Task.FromResult, etc). I don't recommend wrapping an entire method in Task.Run; synchronous methods should have synchronous signatures, and it should be left up to the consumer whether it should be wrapped in a Task.Run:

private int DoWork()
{
  return 1 + 2;
}

private void MoreSynchronousProcessing()
{
  // Execute it directly (synchronously), since we are also a synchronous method.
  var result = DoWork();
  ...
}

private async Task DoVariousThingsFromTheUIThreadAsync()
{
  // I have a bunch of async work to do, and I am executed on the UI thread.
  var result = await Task.Run(() => DoWork());
  ...
}

I have an async/await intro on my blog; at the end are some good followup resources. The MSDN docs for async are unusually good, too.

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

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

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

Reference:

• SUBSTR
• INSTR

This worked for me too. Later, I ended-up switching to the maven-antrun-plugin to avoid warnings in Eclipse. And I prefer using default plugins when possible. Example:

<plugin>
    <artifactId>maven-antrun-plugin</artifactId>
    <version>3.0.0</version>
    <executions>
        <execution>
            <id>get-the-hostname</id>
            <phase>package</phase>
            <configuration>
                <target>
                    <exec executable="bash">
                        <arg value="-c"/>
                        <arg value="hostname"/>
                    </exec>
                </target>
            </configuration>
            <goals>
                <goal>run</goal>
            </goals>
        </execution>
    </executions>
</plugin>

Strangely, I had to do this today! I ended up using Perl because I couldn't get grep/egrep to work (even in -P mode). Something like:

cat blah | perl -en '/\xCA\xFE\xBA\xBE/ && print "found"'

For unicode characters (like \u2212 in example below) use this:

find . ... -exec perl -CA -e '$ARGV = @ARGV[0]; open IN, $ARGV; binmode(IN, ":utf8"); binmode(STDOUT, ":utf8"); while (<IN>) { next unless /\N{U+2212}/; print "$ARGV: $&: $_"; exit }' '{}' \;

Try using Response.SetCookie(), because Response.Cookies.Add() can cause multiple cookies to be added, whereas SetCookie will update an existing cookie.

If I had to guess, you did this:

import datetime

at the top of your code. This means that you have to do this:

datetime.datetime.strptime(date, "%Y-%m-%d")

to access the strptime method. Or, you could change the import statement to this:

from datetime import datetime

and access it as you are.

The people who made the datetime module also named their class datetime:

#module  class    method
datetime.datetime.strptime(date, "%Y-%m-%d")

// This will work prefectly in all :D
function basedInDocument(el) {

    // This function is used for checking if this element in the real DOM
    while (el.parentElement != null) {
        if (el.parentElement == document.body) {
            return true;
        }
        el = el.parentElement; // For checking the parent of.
    } // If the loop breaks, it will return false, meaning
      // the element is not in the real DOM.

    return false;
}

I had the same Issue, I checked the php.net site. And found the right format.
This is my updated code.

$headers = 'MIME-Version: 1.0' . "\r\n";
$headers .= 'Content-type: text/html; charset=iso-8859-1' . "\r\n";
$headers .= 'From:  ' . $fromName . ' <' . $fromEmail .'>' . " \r\n" .
            'Reply-To: '.  $fromEmail . "\r\n" .
            'X-Mailer: PHP/' . phpversion();

The \r\n should be in double quotes(") itself, the single quotes(') will not work.

I tried a lot many things, but my drop down was inside a table and I was not able to perform a simple select operation. Only the below solution worked. Here I am highlighting drop down elem and pressing down arrow until getting the desired value -

        #identify the drop down element
        elem = browser.find_element_by_name(objectVal)
        for option in elem.find_elements_by_tag_name('option'):
            if option.text == value:
                break

            else:
                ARROW_DOWN = u'\ue015'
                elem.send_keys(ARROW_DOWN)

In the Latest Xcode version 12+ Follow the below steps, I found here https://handyopinion.com/solution-failed-to-load-info-plist-from-bundle-at-path-in-xcode/

1.

2.

It will navigate to the Derived Data folder then you can remove the content of the folder.

I know people have answered your question but in layman terms:

5 / 2 = 2 //since both 5 and 2 are integers and integers division always truncates decimals

5.0 / 2 or 5 / 2.0 or 5.0 /2.0 = 2.5 //here either 5 or 2 or both has decimal hence the quotient you will get will be in decimal.

Don't the height and font-size CSS properties work for you ?

It's easy in VS2012; just use the change mapping feature:

1. Create the folder where you want the solution to be moved to.
2. Check-in all your project files (if you want to keep you changes), or rollback any checked out files.
3. Close the solution.
4. Open the Source Control Explorer.
5. Right-click the solution, and select "Advanced -> Remove Mapping..."
6. Change the "Local Folder" value to the one you created in step #1.
7. Select "Change".
8. Open the solution by double-clicking it in the source control explorer.

You will have to change some of your data types but the basics of what you just posted could be converted to something similar to this given the data types I used may not be accurate.

Dim DateToday As String: DateToday = Format(Date, "yyyy/MM/dd")
Dim Computers As New Collection
Dim disabledList As New Collection
Dim compArray(1 To 1) As String

'Assign data to first item in array
compArray(1) = "asdf"

'Format = Item, Key
Computers.Add "ErrorState", "Computer Name"

'Prints "ErrorState"
Debug.Print Computers("Computer Name")

Collections cannot be sorted so if you need to sort data you will probably want to use an array.

Here is a link to the outlook developer reference. http://msdn.microsoft.com/en-us/library/office/ff866465%28v=office.14%29.aspx

Another great site to help you get started is http://www.cpearson.com/Excel/Topic.aspx

Moving everything over to VBA from VB.Net is not going to be simple since not all the data types are the same and you do not have the .Net framework. If you get stuck just post the code you're stuck converting and you will surely get some help!

Edit:

Sub ArrayExample()
    Dim subject As String
    Dim TestArray() As String
    Dim counter As Long

    subject = "Example"
    counter = Len(subject)

    ReDim TestArray(1 To counter) As String

    For counter = 1 To Len(subject)
        TestArray(counter) = Right(Left(subject, counter), 1)
    Next
End Sub

For me this works perfect

insert into oehr.employees select * from employees where employee_id=99

I am not sure why you get error. The nature of the error code you have produced is the columns didn't match.

One good approach will be to use the answer @Parodo specified

time.clock()

Deprecated since version 3.3: The behavior of this function depends on the platform: use perf_counter() or process_time() instead, depending on your requirements, to have a well-defined behavior.

time.perf_counter()

Return the value (in fractional seconds) of a performance counter, i.e. a clock with the highest available resolution to measure a short duration. It does include time elapsed during sleep and is system-wide.

time.process_time()

Return the value (in fractional seconds) of the sum of the system and user CPU time of the current process. It does not include time elapsed during sleep.

start = time.process_time()
... do something
elapsed = (time.process_time() - start)

Cannot update first answer.
Anyway, after Go1 release, there are some breaking changes, so I updated as shown below:

package main

import (
    "os"
    "bufio"
    "bytes"
    "io"
    "fmt"
    "strings"
)

// Read a whole file into the memory and store it as array of lines
func readLines(path string) (lines []string, err error) {
    var (
        file *os.File
        part []byte
        prefix bool
    )
    if file, err = os.Open(path); err != nil {
        return
    }
    defer file.Close()

    reader := bufio.NewReader(file)
    buffer := bytes.NewBuffer(make([]byte, 0))
    for {
        if part, prefix, err = reader.ReadLine(); err != nil {
            break
        }
        buffer.Write(part)
        if !prefix {
            lines = append(lines, buffer.String())
            buffer.Reset()
        }
    }
    if err == io.EOF {
        err = nil
    }
    return
}

func writeLines(lines []string, path string) (err error) {
    var (
        file *os.File
    )

    if file, err = os.Create(path); err != nil {
        return
    }
    defer file.Close()

    //writer := bufio.NewWriter(file)
    for _,item := range lines {
        //fmt.Println(item)
        _, err := file.WriteString(strings.TrimSpace(item) + "\n"); 
        //file.Write([]byte(item)); 
        if err != nil {
            //fmt.Println("debug")
            fmt.Println(err)
            break
        }
    }
    /*content := strings.Join(lines, "\n")
    _, err = writer.WriteString(content)*/
    return
}

func main() {
    lines, err := readLines("foo.txt")
    if err != nil {
        fmt.Println("Error: %s\n", err)
        return
    }
    for _, line := range lines {
        fmt.Println(line)
    }
    //array := []string{"7.0", "8.5", "9.1"}
    err = writeLines(lines, "foo2.txt")
    fmt.Println(err)
}

I had this error message with boot2docker on windows with the docker-oracle-xe-11g image (https://registry.hub.docker.com/u/wnameless/oracle-xe-11g/).

The reason was that the virtual box disk was full (check with boot2docker.exe ssh df). Deleting old images and restarting the container solved the problem.

You want nohup. See http://nixcraft.com/linux-software/313-ssh-nohup-connection.html

cleanText = strInputCode.replace(/<\/?[^>]+(>|$)/g, "");

Distilled from this website (web.achive).

This regex looks for <, an optional slash /, one or more characters that are not >, then either > or $ (the end of the line)

Examples:

'<div>Hello</div>' ==> 'Hello'
 ^^^^^     ^^^^^^
'Unterminated Tag <b' ==> 'Unterminated Tag '
                  ^^

But it is not bulletproof:

'If you are < 13 you cannot register' ==> 'If you are '
            ^^^^^^^^^^^^^^^^^^^^^^^^
'<div data="score > 42">Hello</div>' ==> ' 42">Hello'
 ^^^^^^^^^^^^^^^^^^          ^^^^^^

If someone is trying to break your application, this regex will not protect you. It should only be used if you already know the format of your input. As other knowledgable and mostly sane people have pointed out, to safely strip tags, you must use a parser.

If you do not have acccess to a convenient parser like the DOM, and you cannot trust your input to be in the right format, you may be better off using a package like sanitize-html, and also other sanitizers are available.

I came across a situation in which I had to send a long message as part of a command argument and had to adhere to the line length limitation. The commands looks something like this:

somecommand --message="I am a long message" args

The way I solved this is to move the message out as a here document (like @tripleee suggested). But a here document becomes a stdin, so it needs to be read back in, I went with the below approach:

message=$(
    tr "\n" " " <<- END
        This is a
        long message
END
)
somecommand --message="$message" args

This has the advantage that $message can be used exactly as the string constant with no extra whitespace or line breaks.

Note that the actual message lines above are prefixed with a tab character each, which is stripped by here document itself (because of the use of <<-). There are still line breaks at the end, which are then replaced by dd with spaces.

Note also that if you don't remove newlines, they will appear as is when "$message" is expanded. In some cases, you may be able to workaround by removing the double-quotes around $message, but the message will no longer be a single argument.

For new projects, I've started having every class I write extend the same base class where I can put all the utility methods that are annoyingly missing from Java like this one, the equivalent for collections (tired of writing list != null && ! list.isEmpty()), null-safe equals, etc. I still use Apache Commons for the implementation but this saves a small amount of typing and I haven't seen any negative effects.

I was getting the same error on a restored database when I tried to insert a new record using the EntityFramework. It turned out that the Indentity/Seed was screwing things up.

Using a reseed command fixed it.

DBCC CHECKIDENT ('[Prices]', RESEED, 4747030);GO

In the current documentation we can specify a build.json with the keystore:

{
     "android": {
         "debug": {
             "keystore": "..\android.keystore",
             "storePassword": "android",
             "alias": "mykey1",
             "password" : "password",
             "keystoreType": ""
         },
         "release": {
             "keystore": "..\android.keystore",
             "storePassword": "",
             "alias": "mykey2",
             "password" : "password",
             "keystoreType": ""
         }
     }
 }

And then, execute the commando with --buildConfig argumente, this way:

cordova run android --buildConfig

An example under Linux (Fedora 16) shows that memory is freed when R is closed:

$ free -m                                                                                                                                                                                                                                    
             total       used       free     shared    buffers     cached                                                                                                                                                                    
Mem:          3829       2854        974          0        344       1440                                                                                                                                                                    
-/+ buffers/cache:       1069       2759                                                                                                                                                                                                     
Swap:         4095         85       4010     

2854 megabytes is used. Next I open an R session and create a large matrix of random numbers:

m = matrix(runif(10e7), 10000, 1000)

when the matrix is created, 3714 MB is used:

$ free -m                                                                                                                                                                                                                                    
             total       used       free     shared    buffers     cached                                                                                                                                                                    
Mem:          3829       3714        115          0        344       1442                                                                                                                                                                    
-/+ buffers/cache:       1927       1902                                                                                                                                                                                                     
Swap:         4095         85       4010     

After closing the R session, I nicely get back the memory I used (2856 MB free):

$ free -m                                                                                                                                                                                                                                    
             total       used       free     shared    buffers     cached                                                                                                                                                                    
Mem:          3829       2856        972          0        344       1442                                                                                                                                                                    
-/+ buffers/cache:       1069       2759                                                                                                                                                                                                     
Swap:         4095         85       4010   

Ofcourse you use Windows, but you could repeat this excercise in Windows and report how the available memory develops before and after you create this large dataset in R.

If you are like me whose Java Control Panel does not show Security slider under Security Tab to change security level from High to Medium then follow these instructions: Java known bug: security slider not visible.

Symptoms:

After installation, the checkbox to enable/disable Java and the security level slider do not appear in the Java Control Panel Security tab. This can occur with 7u10 and above.

Cause

This is due to a conflict that Java 7u10 and above have with standalone installations of JavaFX. Example: If Java 7u5 and JavaFX 2.1.1 are installed and if Java is updated to 7u11, the Java Control Panel does not show the checkbox or security slider.

Resolution

It is recommended to uninstall all versions of Java and JavaFX before installing Java 7u10 and above.
Please follow the steps below for resolving this issue.
1. Remove all versions of Java and JavaFX through the Windows Uninstall Control Panel. Instructions on uninstalling Java.
2. Run the Microsoft uninstall utility to repair corrupted registry keys that prevents programs from being completely uninstalled or blocking new installations and updates.
3. Download and install the Windows offline installer package.

For your first array, use array_splice():

$array_1 = array(
  '0' => 'zero',
  '1' => 'one',
  '2' => 'two',
  '3' => 'three',
);

array_splice($array_1, 3, 0, 'more');
print_r($array_1);

output:

Array(
    [0] => zero
    [1] => one
    [2] => two
    [3] => more
    [4] => three
)

for the second one there is no order so you just have to do :

$array_2['more'] = '2.5';
print_r($array_2);

And sort the keys by whatever you want.

This solution works with complex JSONs:

public Object toJSON(Object object) throws JSONException {
    if (object instanceof HashMap) {
        JSONObject json = new JSONObject();
        HashMap map = (HashMap) object;
        for (Object key : map.keySet()) {
            json.put(key.toString(), toJSON(map.get(key)));
        }
        return json;
    } else if (object instanceof Iterable) {
        JSONArray json = new JSONArray();
        for (Object value : ((Iterable) object)) {
            json.put(toJSON(value));
        }
        return json;
    }
    else {
        return object;
    }
}