iloc

df1 = datasX.iloc[:, :72]
df2 = datasX.iloc[:, 72:]

(iloc docs)

Try

let bytes = [65,108,105,99,101,39,115,32,65,100,118,101,110,116,117,114,101];_x000D_
_x000D_
let base64data = btoa(String.fromCharCode.apply(null, bytes));_x000D_
_x000D_
let a = document.createElement('a');_x000D_
a.href = 'data:;base64,' + base64data;_x000D_
a.download = 'binFile.txt'; _x000D_
a.click();

I convert here binary data to base64 (for bigger data conversion use this) - during downloading browser decode it automatically and save raw data in file. 2020.06.14 I upgrade Chrome to 83.0 and above SO snippet stop working (probably due to sandbox security restrictions) - but JSFiddle version works - here

If the server only supports higher TLS version like TLS 1.2 only, it will still fail unless your client PC is configured to use higher TLS version by default. To overcome this problem add the following in your code.

System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

Modifying your example code, it would be

HttpClient httpClient = new HttpClient();   

//specify to use TLS 1.2 as default connection
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

httpClient.BaseAddress = new Uri("https://foobar.com/");
httpClient.DefaultRequestHeaders.Accept.Clear();
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/xml"));

var task = httpClient.PostAsXmlAsync<DeviceRequest>("api/SaveData", request);

There is jq for parsing json on the command line:

 jq '.Body'

Visit this for jq: https://stedolan.github.io/jq/

Ftrujillo's answer works well but if you only have one package to scan this is the shortest form::

    @Bean
    public Jaxb2Marshaller marshaller() {
        Jaxb2Marshaller marshaller = new Jaxb2Marshaller();
        marshaller.setContextPath("your.package.to.scan");
        return marshaller;
    }

Had one of these as well, but the parameter of the action was an interface with no public properties. Ended up using It.Is() with a seperate method and within this method had to do some mocking of the interface

public interface IQuery
{
    IQuery SetSomeFields(string info);
}

void DoSomeQuerying(Action<IQuery> queryThing);

mockedObject.Setup(m => m.DoSomeQuerying(It.Is<Action<IQuery>>(q => MyCheckingMethod(q)));

private bool MyCheckingMethod(Action<IQuery> queryAction)
{
    var mockQuery = new Mock<IQuery>();
    mockQuery.Setup(m => m.SetSomeFields(It.Is<string>(s => s.MeetsSomeCondition())
    queryAction.Invoke(mockQuery.Object);
    mockQuery.Verify(m => m.SetSomeFields(It.Is<string>(s => s.MeetsSomeCondition(), Times.Once)
    return true
}

I too had this kind of headache. Got rid of of it by simply representing time fields as primitive long in my POJO. Now the generation of my WS client code handle everything correctly and no more XML-to-Java crap. And of course dealing with millis on the Java side is simple and painless. KISS principle rocks!

This should unstage a <file> for you (without removing or otherwise modifying the file):

git reset <file>

I got this error: "Type does not contain a definition for GetProperty" when tying the accepted answer.

This is what i ended up with:

using System.Reflection;

if (productModel.GetType().GetTypeInfo().GetDeclaredProperty(propertyName) != null)
{

}

I see two things missing from the other answers:

• canvas.toBlob (when available) is more performant than canvas.toDataURL, and also async.
• the file -> image -> canvas -> file conversion loses EXIF data; in particular, data about image rotation commonly set by modern phones/tablets.

The following script deals with both points:

// From https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob, needed for Safari:
if (!HTMLCanvasElement.prototype.toBlob) {
    Object.defineProperty(HTMLCanvasElement.prototype, 'toBlob', {
        value: function(callback, type, quality) {

            var binStr = atob(this.toDataURL(type, quality).split(',')[1]),
                len = binStr.length,
                arr = new Uint8Array(len);

            for (var i = 0; i < len; i++) {
                arr[i] = binStr.charCodeAt(i);
            }

            callback(new Blob([arr], {type: type || 'image/png'}));
        }
    });
}

window.URL = window.URL || window.webkitURL;

// Modified from https://stackoverflow.com/a/32490603, cc by-sa 3.0
// -2 = not jpeg, -1 = no data, 1..8 = orientations
function getExifOrientation(file, callback) {
    // Suggestion from http://code.flickr.net/2012/06/01/parsing-exif-client-side-using-javascript-2/:
    if (file.slice) {
        file = file.slice(0, 131072);
    } else if (file.webkitSlice) {
        file = file.webkitSlice(0, 131072);
    }

    var reader = new FileReader();
    reader.onload = function(e) {
        var view = new DataView(e.target.result);
        if (view.getUint16(0, false) != 0xFFD8) {
            callback(-2);
            return;
        }
        var length = view.byteLength, offset = 2;
        while (offset < length) {
            var marker = view.getUint16(offset, false);
            offset += 2;
            if (marker == 0xFFE1) {
                if (view.getUint32(offset += 2, false) != 0x45786966) {
                    callback(-1);
                    return;
                }
                var little = view.getUint16(offset += 6, false) == 0x4949;
                offset += view.getUint32(offset + 4, little);
                var tags = view.getUint16(offset, little);
                offset += 2;
                for (var i = 0; i < tags; i++)
                    if (view.getUint16(offset + (i * 12), little) == 0x0112) {
                        callback(view.getUint16(offset + (i * 12) + 8, little));
                        return;
                    }
            }
            else if ((marker & 0xFF00) != 0xFF00) break;
            else offset += view.getUint16(offset, false);
        }
        callback(-1);
    };
    reader.readAsArrayBuffer(file);
}

// Derived from https://stackoverflow.com/a/40867559, cc by-sa
function imgToCanvasWithOrientation(img, rawWidth, rawHeight, orientation) {
    var canvas = document.createElement('canvas');
    if (orientation > 4) {
        canvas.width = rawHeight;
        canvas.height = rawWidth;
    } else {
        canvas.width = rawWidth;
        canvas.height = rawHeight;
    }

    if (orientation > 1) {
        console.log("EXIF orientation = " + orientation + ", rotating picture");
    }

    var ctx = canvas.getContext('2d');
    switch (orientation) {
        case 2: ctx.transform(-1, 0, 0, 1, rawWidth, 0); break;
        case 3: ctx.transform(-1, 0, 0, -1, rawWidth, rawHeight); break;
        case 4: ctx.transform(1, 0, 0, -1, 0, rawHeight); break;
        case 5: ctx.transform(0, 1, 1, 0, 0, 0); break;
        case 6: ctx.transform(0, 1, -1, 0, rawHeight, 0); break;
        case 7: ctx.transform(0, -1, -1, 0, rawHeight, rawWidth); break;
        case 8: ctx.transform(0, -1, 1, 0, 0, rawWidth); break;
    }
    ctx.drawImage(img, 0, 0, rawWidth, rawHeight);
    return canvas;
}

function reduceFileSize(file, acceptFileSize, maxWidth, maxHeight, quality, callback) {
    if (file.size <= acceptFileSize) {
        callback(file);
        return;
    }
    var img = new Image();
    img.onerror = function() {
        URL.revokeObjectURL(this.src);
        callback(file);
    };
    img.onload = function() {
        URL.revokeObjectURL(this.src);
        getExifOrientation(file, function(orientation) {
            var w = img.width, h = img.height;
            var scale = (orientation > 4 ?
                Math.min(maxHeight / w, maxWidth / h, 1) :
                Math.min(maxWidth / w, maxHeight / h, 1));
            h = Math.round(h * scale);
            w = Math.round(w * scale);

            var canvas = imgToCanvasWithOrientation(img, w, h, orientation);
            canvas.toBlob(function(blob) {
                console.log("Resized image to " + w + "x" + h + ", " + (blob.size >> 10) + "kB");
                callback(blob);
            }, 'image/jpeg', quality);
        });
    };
    img.src = URL.createObjectURL(file);
}

Example usage:

inputfile.onchange = function() {
    // If file size > 500kB, resize such that width <= 1000, quality = 0.9
    reduceFileSize(this.files[0], 500*1024, 1000, Infinity, 0.9, blob => {
        let body = new FormData();
        body.set('file', blob, blob.name || "file.jpg");
        fetch('/upload-image', {method: 'POST', body}).then(...);
    });
};

What about hex()?

hex(255)  # 0xff

If you really want to have \ in front you can do:

print '\\' + hex(255)[1:]

Nothing. It was added to the C99 standard.

The above method works good.

Another method (I am assuming web here) is to create your page. Add controls to the page. Then while in design mode go to: Tools > Generate Local Resource. A resource file will automatically appear in the solution with all the controls in the page mapped in the resource file.

To create resources for other languages, append the 4 character language to the end of the file name, before the extension (Account.aspx.en-US.resx, Account.aspx.es-ES.resx...etc).

To retrieve specific entries in the code-behind, simply call this method: GetLocalResourceObject([resource entry key/name]).

JSON.stringify takes more optional arguments.

Try:

 JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, 4); // Indented 4 spaces
 JSON.stringify({a:1,b:2,c:{d:1,e:[1,2]}}, null, "\t"); // Indented with tab

From:

How can I beautify JSON programmatically?

Should work in modern browsers, and it is included in json2.js if you need a fallback for browsers that don't support the JSON helper functions. For display purposes, put the output in a <pre> tag to get newlines to show.

If you use UITableViewController, implement this method:

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath;

In the function of a row you can choose Height. For example,

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (indexPath.row == 0) {
       return 100;
    } 
    else {
       return 60;
    }
}

In this exemple, the first row height is 100 pixels, and the others are 60 pixels.

I hope this one can help you.

Mongo shell command that worked for me:

db.getCollection(<collection_name>).aggregate([{"$match": {'<key>': '<value to match>'}}, {"$group": {'_id': {'<group_by_attribute>': "$group_by_attribute"}}}])

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");

Seems like you are going to have limited options since you want the check to occur before the upload. I think the best you are going to get is to use javascript to validate the extension of the file. You could build a hash of valid extensions and then look to see if the extension of the file being uploaded existed in the hash.

HTML:

<input type="file" name="FILENAME"  size="20" onchange="check_extension(this.value,"upload");"/>
<input type="submit" id="upload" name="upload" value="Attach" disabled="disabled" />

Javascript:

var hash = {
  'xls'  : 1,
  'xlsx' : 1,
};

function check_extension(filename,submitId) {
      var re = /\..+$/;
      var ext = filename.match(re);
      var submitEl = document.getElementById(submitId);
      if (hash[ext]) {
        submitEl.disabled = false;
        return true;
      } else {
        alert("Invalid filename, please select another file");
        submitEl.disabled = true;

        return false;
      }
}

I would recommend Apache HttpComponents HttpClient, a successor of Commons HttpClient

I would also recommend to take a look at HtmlUnit. HtmlUnit is a "GUI-Less browser for Java programs". http://htmlunit.sourceforge.net/

In my opinion, it is not possible for the like button (and I hope it is not possible).

But, you can trigger a custom OpenGraph v2 action, or display a like button linked to your facebook page.

This method converts an int to a String, length=bits. Either padded with 0s or with the most significant bits truncated.

static String toBitString( int x, int bits ){
    String bitString = Integer.toBinaryString(x);
    int size = bitString.length();
    StringBuilder sb = new StringBuilder( bits );
    if( bits > size ){
        for( int i=0; i<bits-size; i++ )
            sb.append('0');
        sb.append( bitString );
    }else
        sb = sb.append( bitString.substring(size-bits, size) );

    return sb.toString();
}

I have reformatted your slow sql query with www.prettysql.net

SELECT *
FROM some_table
WHERE
 relevant_field in
 (
  SELECT relevant_field
  FROM some_table
  GROUP BY relevant_field
  HAVING COUNT ( * ) > 1
 );

When using a table in both the query and the subquery, you should always alias both, like this:

SELECT *
FROM some_table as t1
WHERE
 t1.relevant_field in
 (
  SELECT t2.relevant_field
  FROM some_table as t2
  GROUP BY t2.relevant_field
  HAVING COUNT ( t2.relevant_field ) > 1
 );

Does that help?

There is a computer vision package called HALCON from MVTec whose demos could give you good algorithm ideas. There is plenty of examples similar to your problem that you could run in demo mode and then look at the operators in the code and see how to implement them from existing OpenCV operators.

I have used this package to quickly prototype complex algorithms for problems like this and then find how to implement them using existing OpenCV features. In particular for your case you could try to implement in OpenCV the functionality embedded in the operator find_scaled_shape_model. Some operators point to the scientific paper regarding algorithm implementation which can help to find out how to do something similar in OpenCV. Hope this helps...

Did you try using the -ArgumentList parameter:

invoke-command -ComputerName studio -ScriptBlock { param ( $myarg ) ping.exe $myarg } -ArgumentList localhost   

http://technet.microsoft.com/en-us/library/dd347578.aspx

An example of invoking a program that is not in the path and has a space in it's folder path:

invoke-command -ComputerName Computer1 -ScriptBlock { param ($myarg) & 'C:\Program Files\program.exe' -something $myarg } -ArgumentList "myArgValue"

If the value of the argument is static you can just provide it in the script block like this:

invoke-command -ComputerName Computer1 -ScriptBlock { & 'C:\Program Files\program.exe' -something "myArgValue" } 

Right click the .tt file and select "Run Custom Tool", that should update it:

How about passing the controller function with bidirectional binding? Then you can use it in the directive exactly the same way as in a regular template (I stripped irrelevant parts for simplicity):

<div ng-controller="testCtrl">

   <!-- pass the function with no arguments -->
   <test color1="color1" update-fn="updateFn"></test>
</div>

<script>
   angular.module('dr', [])
   .controller("testCtrl", function($scope) {
      $scope.updateFn = function(msg) {
         alert(msg);
      }
   })
   .directive('test', function() {
      return {
         scope: {
            updateFn: '=' // '=' bidirectional binding
         },
         template: "<button ng-click='updateFn(1337)'>Click</button>"
      }
   });
</script>

I landed at this question, because I tried the method above befire, but somehow it didn't work. Now it works perfectly.

The loc parameter specifies in which corner of the bounding box the legend is placed. The default for loc is loc="best" which gives unpredictable results when the bbox_to_anchor argument is used.
Therefore, when specifying bbox_to_anchor, always specify loc as well.

The default for bbox_to_anchor is (0,0,1,1), which is a bounding box over the complete axes. If a different bounding box is specified, is is usually sufficient to use the first two values, which give (x0, y0) of the bounding box.

Below is an example where the bounding box is set to position (0.6,0.5) (green dot) and different loc parameters are tested. Because the legend extents outside the bounding box, the loc parameter may be interpreted as "which corner of the legend shall be placed at position given by the 2-tuple bbox_to_anchor argument".

import matplotlib.pyplot as plt
plt.rcParams["figure.figsize"] = 6, 3
fig, axes = plt.subplots(ncols=3)
locs = ["upper left", "lower left", "center right"]
for l, ax in zip(locs, axes.flatten()):
    ax.set_title(l)
    ax.plot([1,2,3],[2,3,1], "b-", label="blue")
    ax.plot([1,2,3],[1,2,1], "r-", label="red")
    ax.legend(loc=l, bbox_to_anchor=(0.6,0.5))
    ax.scatter((0.6),(0.5), s=81, c="limegreen", transform=ax.transAxes)

plt.tight_layout()    
plt.show()

See especially this answer for a detailed explanation and the question What does a 4-element tuple argument for 'bbox_to_anchor' mean in matplotlib? .

ax.legend(bbox_to_anchor=(1,0), loc="lower right",  bbox_transform=fig.transFigure)

It may not make too much sense to use data coordinates, but since you asked for it this would be done via bbox_transform=ax.transData.

For finding value use below

if let a = companies["AAPL"] {
   // a is the value
}

For traversing through the dictionary

for (key, value) in companies {
    print(key,"---", value)
}

Finally for searching key by value you firstly add the extension

extension Dictionary where Value: Equatable {
    func findKey(forValue val: Value) -> Key? {
        return first(where: { $1 == val })?.key
    }
}

Then just call

companies.findKey(val : "Apple Inc")

You can pass variable on the command line via --extra-vars "name=value". Sudo password variable is ansible_sudo_pass. So your command would look like:

ansible-playbook playbook.yml -i inventory.ini --user=username \
                              --extra-vars "ansible_sudo_pass=yourPassword"

Update 2017: Ansible 2.2.1.0 now uses var ansible_become_pass. Either seems to work.

I have managed to to do it in a way. Perform all the steps as referenced by Michal Rowicki above.

1. Open Visual Paradigm software.
2. Create a new Project
3. There would be an option on the Tools bar above that states Code and select Instant Reverse... from the drop down menu with Java language(or other)
4. Select your application folder where your project is located and add it to the project(i have selected the complete folder application)
5. The application should now appear on the left pane in Class Repository
6. Then all you do is right click the project that you have added and select Reverse to new class diagram
7. Select either you wish to have the packages included in the class diagram or just the class diagram of the project

Then it should appear on your screen and customize it as you wish

However i do not know if the plugin in Android Studio was necessary nevertheless it has worked in a way for me.

Here is what I did and it works perfectly on every version of Android.

toolbar.xml

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="56dp"
    android:background="@color/primary_color"
    app:theme="@style/ThemeOverlay.AppCompat"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

    <TextView
        android:id="@+id/toolbar_title"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginLeft="16dp" <!-- Add margin -->
        android:layout_marginStart="16dp"
        android:gravity="left|center"
        android:text="Toolbar Title" <!-- Your title text -->
        android:textColor="@color/white" <!-- Matches default title styles -->
        android:textSize="20sp"
        android:fontFamily="sans-serif-medium"/>

</android.support.v7.widget.Toolbar>

MyActivity.java (To hide default toolbar title)

getSupportActionBar().setDisplayShowTitleEnabled(false); // Hide default toolbar title

Result with Keylines Shown

remove yarn

# macOS & brew
$ brew uninstall yarn

remove npm package

yarn global remove

# yarn global remove
$ sudo yarn global remove @tarojs/cli


# yarn global add 
$ sudo yarn global add @tarojs/cli

refs

https://classic.yarnpkg.com/en/docs/cli/global/

https://classic.yarnpkg.com/en/docs/cli/remove/

You can use this code snippet to scroll:

C#

var element = Driver.FindElement(By.Id("element-id"));
Actions actions = new Actions(Driver);
actions.MoveToElement(element).Perform();

There you have it

<select required>
  <option value="" disabled selected>None</option>
  <option value="volvo">Volvo</option>
  <option value="saab">Saab</option>
  <option value="mercedes">Mercedes</option>
  <option value="audi">Audi</option>
</select>

You can avoid custom validation in this case.

I came across the same issue installing my signed certificate on an Amazon Elastic Load Balancer instance.

All seemed find via a browser (Chrome) but accessing the site via my java client produced the exception javax.net.ssl.SSLPeerUnverifiedException

What I had not done was provide a "certificate chain" file when installing my certificate on my ELB instance (see https://serverfault.com/questions/419432/install-ssl-on-amazon-elastic-load-balancer-with-godaddy-wildcard-certificate)

We were only sent our signed public key from the signing authority so I had to create my own certificate chain file. Using my browser's certificate viewer panel I exported each certificate in the signing chain. (The order of the certificate chain in important, see https://forums.aws.amazon.com/message.jspa?messageID=222086)

Note that there's some confusion about location of the autocomplete attribute. It can be applied either to the whole FORM tag or to individual INPUT tags, and this wasn't really standardized before HTML5 (that explicitly allows both locations). Older docs most notably this Mozilla article only mentions FORM tag. At the same time some security scanners will only look for autocomplete in INPUT tag and complain if it's missing (even if it is in the parent FORM). A more detailed analysis of this mess is posted here: Confusion over AUTOCOMPLETE=OFF attributes in HTML forms.

I solved this issue after changing the "Gradle Version" and "Android Plugin version".

You just goto "File>>Project Structure>>Project>>" and make changes here. I have worked a combination of versions from another working project of mine and added to the Project where I was getting this problem.

You can also use your intuition.

The area of a circle is pi*r^2

For r=1

This give us an area of pi. Let us assume that we have some kind of function fthat would uniformly distrubute N=10 points inside a circle. The ratio here is 10 / pi

Now we double the area and the number of points

For r=2 and N=20

This gives an area of 4pi and the ratio is now 20/4pi or 10/2pi. The ratio will get smaller and smaller the bigger the radius is, because its growth is quadratic and the N scales linearly.

To fix this we can just say

x = r^2
sqrt(x) = r

If you would generate a vector in polar coordinates like this

length = random_0_1();
angle = random_0_2pi();

More points would land around the center.

length = sqrt(random_0_1());
angle = random_0_2pi();

length is not uniformly distributed anymore, but the vector will now be uniformly distributed.

SCENARIO 1 - wait for async task completion: I agree that WaitHandle/Auto|ManualResetEvent should be used in scenario where a thread is waiting for task on another thread to complete.

SCENARIO 2 - timing while loop: However, as a crude timing mechanism (while+Thread.Sleep) is perfectly fine for 99% of applications which does NOT require knowing exactly when the blocked Thread should "wake up*. The argument that it takes 200k cycles to create the thread is also invalid - the timing loop thread needs be created anyway and 200k cycles is just another big number (tell me how many cycles to open a file/socket/db calls?).

So if while+Thread.Sleep works, why complicate things? Only syntax lawyers would, be practical!

SOURCE: https://git-scm.com/book/en/v2/Distributed-Git-Maintaining-a-Project#Integrating-Contributed-Work

The other way to move introduced work from one branch to another is to cherry-pick it. A cherry-pick in Git is like a rebase for a single commit. It takes the patch that was introduced in a commit and tries to reapply it on the branch you’re currently on. This is useful if you have a number of commits on a topic branch and you want to integrate only one of them, or if you only have one commit on a topic branch and you’d prefer to cherry-pick it rather than run rebase. For example, suppose you have a project that looks like this:

If you want to pull commit e43a6 into your master branch, you can run

$ git cherry-pick e43a6
Finished one cherry-pick.
[master]: created a0a41a9: "More friendly message when locking the index fails."
 3 files changed, 17 insertions(+), 3 deletions(-)

This pulls the same change introduced in e43a6, but you get a new commit SHA-1 value, because the date applied is different. Now your history looks like this:

Now you can remove your topic branch and drop the commits you didn’t want to pull in.

You can write like that. This is for whenever you change context path you don't need to modify your jsp file.

<link rel="stylesheet" href="${pageContext.request.contextPath}/css/styles.css" />

after you get the response just do call this function to append data to your body element

function createDiv(responsetext)
{
    var _body = document.getElementsByTagName('body')[0];
    var _div = document.createElement('div');
    _div.innerHTML = responsetext;
    _body.appendChild(_div);
}

@satya code modified as below

function httpGet(theUrl)
{
    if (window.XMLHttpRequest)
    {// code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    }
    else
    {// code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function()
    {
        if (xmlhttp.readyState==4 && xmlhttp.status==200)
        {
            createDiv(xmlhttp.responseText);
        }
    }
    xmlhttp.open("GET", theUrl, false);
    xmlhttp.send();    
}

Yesterday Date can be calculated as:-

let now = new Date();
    var defaultDate = now - 1000 * 60 * 60 * 24 * 1;
    defaultDate = new Date(defaultDate);

Unfortunately you can't declare database names with a variable in that format.

For what you're trying to accomplish, you're going to need to wrap your statements within an EXEC() statement. So you'd have something like:

DECLARE @Sql varchar(max) ='CREATE DATABASE ' + @DBNAME

Then call

EXECUTE(@Sql) or sp_executesql(@Sql)

to execute the sql string.

If you're just using a python datetime.date (not a full datetime.datetime), just cast the date as a string. This is very simple and works for me (mysql, python 2.7, Ubuntu). The column published_date is a MySQL date field, the python variable publish_date is datetime.date.

# make the record for the passed link info
sql_stmt = "INSERT INTO snippet_links (" + \
    "link_headline, link_url, published_date, author, source, coco_id, link_id)" + \
    "VALUES(%s, %s, %s, %s, %s, %s, %s) ;"

sql_data = ( title, link, str(publish_date), \
             author, posted_by, \
             str(coco_id), str(link_id) )

try:
    dbc.execute(sql_stmt, sql_data )
except Exception, e:
    ...

Endpoint, in the OpenID authentication lingo, is the URL to which you send (POST) the authentication request.

Excerpts from Google authentication API

To get the Google OpenID endpoint, perform discovery by sending either a GET or HEAD HTTP request to https://www.google.com/accounts/o8/id. When using a GET, we recommend setting the Accept header to "application/xrds+xml". Google returns an XRDS document containing an OpenID provider endpoint URL.The endpoint address is annotated as:

<Service priority="0">
<Type>http://specs.openid.net/auth/2.0/server</Type> 
<URI>{Google's login endpoint URI}</URI> 
</Service>

Once you've acquired the Google endpoint, you can send authentication requests to it, specifying the appropriate parameters (available at the linked page). You connect to the endpoint by sending a request to the URL or by making an HTTP POST request.

Use HAVING MIN(...)

Something like:

SELECT MIN(price) AS price, pricegroup
FROM articles_prices
WHERE articleID=10
GROUP BY pricegroup
HAVING MIN(price) > 0;

Normally that error occurs when a } was missed somewhere in the code, for example:

void mi_start_curr_serv(void){
    #if 0
    //stmt
    #endif

would fail with this error due to the missing } at the end of the function. The code you posted doesn't have this error, so it is likely coming from some other part of your source.

As mentioned by Nacho.L PBKDF2WithHmacSHA1 derivation is used as it is more secured.

import android.util.Base64;

import java.security.NoSuchAlgorithmException;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.KeySpec;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec;

public class AESEncyption {

    private static final int pswdIterations = 10;
    private static final int keySize = 128;
    private static final String cypherInstance = "AES/CBC/PKCS5Padding";
    private static final String secretKeyInstance = "PBKDF2WithHmacSHA1";
    private static final String plainText = "sampleText";
    private static final String AESSalt = "exampleSalt";
    private static final String initializationVector = "8119745113154120";

    public static String encrypt(String textToEncrypt) throws Exception {

        SecretKeySpec skeySpec = new SecretKeySpec(getRaw(plainText, AESSalt), "AES");
        Cipher cipher = Cipher.getInstance(cypherInstance);
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec, new IvParameterSpec(initializationVector.getBytes()));
        byte[] encrypted = cipher.doFinal(textToEncrypt.getBytes());
        return Base64.encodeToString(encrypted, Base64.DEFAULT);
    }

    public static String decrypt(String textToDecrypt) throws Exception {

        byte[] encryted_bytes = Base64.decode(textToDecrypt, Base64.DEFAULT);
        SecretKeySpec skeySpec = new SecretKeySpec(getRaw(plainText, AESSalt), "AES");
        Cipher cipher = Cipher.getInstance(cypherInstance);
        cipher.init(Cipher.DECRYPT_MODE, skeySpec, new IvParameterSpec(initializationVector.getBytes()));
        byte[] decrypted = cipher.doFinal(encryted_bytes);
        return new String(decrypted, "UTF-8");
    }

    private static byte[] getRaw(String plainText, String salt) {
        try {
            SecretKeyFactory factory = SecretKeyFactory.getInstance(secretKeyInstance);
            KeySpec spec = new PBEKeySpec(plainText.toCharArray(), salt.getBytes(), pswdIterations, keySize);
            return factory.generateSecret(spec).getEncoded();
        } catch (InvalidKeySpecException e) {
            e.printStackTrace();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return new byte[0];
    }

}

Remember you can access good old ECMAScript APIs, in this case, JSON.stringify().

For simple arrays like the one in your example:

require('fs').writeFile(

    './my.json',

    JSON.stringify(myArray),

    function (err) {
        if (err) {
            console.error('Crap happens');
        }
    }
);

I wanted a one-time solution:

ssh -o ServerAliveInterval=60 [email protected]

Stored it in an alias:

alias sshprod='ssh -v -o ServerAliveInterval=60 [email protected]'

Now can connect like this:

me@MyMachine:~$ sshprod

In Gson 2.7.2 it's as easy as

Gson gson = new Gson();
String serialized = gson.toJson(map);

Older MySQL versions this is enough:

SELECT
    `userName`,
    `carPrice`
FROM `users`
LEFT JOIN (SELECT * FROM `cars` ORDER BY `carPrice`) as `cars`
ON cars.belongsToUser=users.id
WHERE `id`='4'

Nowdays, if you use MariaDB the subquery should be limited.

SELECT
    `userName`,
    `carPrice`
FROM `users`
LEFT JOIN (SELECT * FROM `cars` ORDER BY `carPrice` LIMIT 18446744073709551615) as `cars`
ON cars.belongsToUser=users.id
WHERE `id`='4'

Sebastian's answer was the only answer that worked for me while examining a xaml document. If, like me, you'd like a list of all the elements then the method would look a lot like Sebastian's answer above but just returning a list...

    private static List<XElement> GetElements(XDocument doc, string elementName)
    {
        List<XElement> elements = new List<XElement>();

        foreach (XNode node in doc.DescendantNodes())
        {
            if (node is XElement)
            {
                XElement element = (XElement)node;
                if (element.Name.LocalName.Equals(elementName))
                    elements.Add(element);
            }
        }
        return elements;
    }

Call it thus:

var elements = GetElements(xamlFile, "Band");

or in the case of my xaml doc where I wanted all the TextBlocks, call it thus:

var elements = GetElements(xamlFile, "TextBlock");

I dont't know why nobody has pointed this out but here's is a way of doing it without any Javascript and it's also compatible with any browser.

EDIT: In Safari, the input gets disabled when hidden with display: none. A better approach would be to use position: fixed; top: -100em.

<label>
  Open file dialog
  <input type="file" style="position: fixed; top: -100em">
</label>

If you prefer you can go the "correct way" by using for in the label pointing to the id of the input like this:

<label for="inputId">file dialog</label>
<input id="inputId" type="file" style="position: fixed; top: -100em">

It's possible to make the multiple transitions set with different values for duration, delay and timing function. To split different transitions use ,

button{
  transition: background 1s ease-in-out 2s, width 2s linear;
  -webkit-transition: background 1s ease-in-out 2s, width 2s linear; /* Safari */
}

Reference: https://kolosek.com/css-transition/

In the navigator under SCHEMAS, right click your schema/database and select "Table Data Import Wizard"

Works for mac too.

Use PHP error handling functions to handle errors. How you do it depends on your needs. This system will intercept all errors and forward it however you want it Or supress it if you ask it to do so

http://php.net/manual/en/book.errorfunc.php

You can try this with python 3:

from termcolor import colored
print(colored('Hello, World!', 'green', 'on_red'))

If you are using windows operating system, the above code may not work for you. Then you can try this code:

from colorama import init
from termcolor import colored

# use Colorama to make Termcolor work on Windows too
init()

# then use Termcolor for all colored text output
print(colored('Hello, World!', 'green', 'on_red'))

Hope that helps.

You could do something like this if you wanted

package main

import "fmt"

type Pair struct {
    a, b interface{}
}

func main() {
    p1 := Pair{"finished", 42}
    p2 := Pair{6.1, "hello"}
    fmt.Println("p1=", p1, "p2=", p2)
    fmt.Println("p1.b", p1.b)
    // But to use the values you'll need a type assertion
    s := p1.a.(string) + " now"
    fmt.Println("p1.a", s)
}

However I think what you have already is perfectly idiomatic and the struct describes your data perfectly which is a big advantage over using plain tuples.

Go to c drive and run the command as below

C:\xampp\php>php -v

kindly executed these commands.

pip install google
pip install google-core-api

will definitely solve your problem

osx could be using launchctl to launch mysql. Try this:

sudo launchctl unload -w /Library/LaunchDaemons/com.mysql.mysqld.plist

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

This answer has been lifted from here and is posted here in case the other thread gets deleted:

The fact that you have non-distributed LSN in the log is the problem. I have seen this once before not sure why we dont unmark the transaction as replicated. We will investigate this internally. You can execute the following command to unmark the transaction as replicated

EXEC sp_repldone @xactid = NULL, @xact_segno = NULL, @numtrans = 0, @time = 0, @reset = 1

At this point you should be able to truncate the log.

This scenario is not so common in real-world programming, but not so strange too. It happens sometimes that two classes in different packages have same name and we need both of them.

It is not mandatory that if two classes have same name, then both will contain same functionalities and we should pick only one of them.

If we need both, then there is no harm in using that. And it's not a bad programming idea too.

But we should use fully qualified names of the classes (that have same name) in order to make it clear which class we are referring too.

:)

Yes there is something similar to pointers in PHP but may not match with what exactly happens in c or c++. Following is one of the example.

$a = "test";
$b = "a";
echo $a;
echo $b;
echo $$b;

//output
test
a
test

This illustrates similar concept of pointers in PHP.

Bootstrap 4

Use the data-parent="" attribute on the collapse element (instead of the trigger element)

<div id="accordion">
  <div class="card">
    <div class="card-header">
      <h5>
        <button class="btn btn-link" data-toggle="collapse" data-target="#collapseOne">
          Collapsible #1 trigger
        </button>
      </h5>
    </div>
    <div id="collapseOne" class="collapse show" data-parent="#accordion">
      <div class="card-body">
        Collapsible #1 element
      </div>
    </div>
  </div>
  ... (more cards/collapsibles inside #accordion parent)
</div>

Bootstrap 3

See this issue on GitHub: https://github.com/twbs/bootstrap/issues/10966

There is a "bug" that makes the accordion dependent on the .panel class when using the data-parent attribute. To workaround it, you can wrap each accordion group in a 'panel' div..

http://bootply.com/88288

<div class="accordion" id="myAccordion">
    <div class="panel">
        <button type="button" class="btn btn-danger" data-toggle="collapse" data-target="#collapsible-1" data-parent="#myAccordion">Question 1?</button>
        <div id="collapsible-1" class="collapse">
            ..
        </div>
    </div>
    <div class="panel">
        <button type="button" class="btn btn-danger" data-toggle="collapse" data-target="#collapsible-2" data-parent="#myAccordion">Question 2?</button>
        <div id="collapsible-2" class="collapse">
            ..
        </div>
    </div>
    <div class="panel">
        <button type="button" class="btn btn-danger" data-toggle="collapse" data-target="#collapsible-3" data-parent="#myAccordion">Question 3?</button>
        <div id="collapsible-3" class="collapse">
           ...
        </div>
    </div>
</div>

Edit

As mentioned in the comments, each section doesn't have to be a .panel. However...

• .panel must be a direct child of the element used as data-parent=
• each accordion section (data-toggle=) must be a direct child of the .panel (http://www.bootply.com/AbiRW7BdD6#)

The API Doc are very clear on this.

All generators implement the interface org.hibernate.id.IdentifierGenerator. This is a very simple interface. Some applications can choose to provide their own specialized implementations, however, Hibernate provides a range of built-in implementations. The shortcut names for the built-in generators are as follows:

increment

generates identifiers of type long, short or int that are unique only when no other process is inserting data into the same table. Do not use in a cluster.

identity

supports identity columns in DB2, MySQL, MS SQL Server, Sybase and HypersonicSQL. The returned identifier is of type long, short or int.

sequence

uses a sequence in DB2, PostgreSQL, Oracle, SAP DB, McKoi or a generator in Interbase. The returned identifier is of type long, short or int

hilo

uses a hi/lo algorithm to efficiently generate identifiers of type long, short or int, given a table and column (by default hibernate_unique_key and next_hi respectively) as a source of hi values. The hi/lo algorithm generates identifiers that are unique only for a particular database.

seqhilo

uses a hi/lo algorithm to efficiently generate identifiers of type long, short or int, given a named database sequence.

uuid

uses a 128-bit UUID algorithm to generate identifiers of type string that are unique within a network (the IP address is used). The UUID is encoded as a string of 32 hexadecimal digits in length.

guid

uses a database-generated GUID string on MS SQL Server and MySQL.

native

selects identity, sequence or hilo depending upon the capabilities of the underlying database.

assigned

lets the application assign an identifier to the object before save() is called. This is the default strategy if no element is specified.

select

retrieves a primary key, assigned by a database trigger, by selecting the row by some unique key and retrieving the primary key value.

foreign

uses the identifier of another associated object. It is usually used in conjunction with a primary key association.

sequence-identity

a specialized sequence generation strategy that utilizes a database sequence for the actual value generation, but combines this with JDBC3 getGeneratedKeys to return the generated identifier value as part of the insert statement execution. This strategy is only supported on Oracle 10g drivers targeted for JDK 1.4. Comments on these insert statements are disabled due to a bug in the Oracle drivers.

If you are building a simple application with not much concurrent users, you can go for increment, identity, hilo etc.. These are simple to configure and did not need much coding inside the db.

You should choose sequence or guid depending on your database. These are safe and better because the id generation will happen inside the database.

Update: Recently we had an an issue with idendity where primitive type (int) this was fixed by using warapper type (Integer) instead.

It means, essentially, what it says; that 'this is important, ignore subsequent rules, and any usual specificity issues, apply this rule!'

In normal use a rule defined in an external stylesheet is overruled by a style defined in the head of the document, which, in turn, is overruled by an in-line style within the element itself (assuming equal specificity of the selectors). Defining a rule with the !important 'attribute' (?) discards the normal concerns as regards the 'later' rule overriding the 'earlier' ones.

Also, ordinarily, a more specific rule will override a less-specific rule. So:

a {
    /* css */
}

Is normally overruled by:

body div #elementID ul li a {
    /* css */
}

As the latter selector is more specific (and it doesn't, normally, matter where the more-specific selector is found (in the head or the external stylesheet) it will still override the less-specific selector (in-line style attributes will always override the 'more-', or the 'less-', specific selector as it's always more specific.

If, however, you add !important to the less-specific selector's CSS declaration, it will have priority.

Using !important has its purposes (though I struggle to think of them), but it's much like using a nuclear explosion to stop the foxes killing your chickens; yes, the foxes will be killed, but so will the chickens. And the neighbourhood.

It also makes debugging your CSS a nightmare (from personal, empirical, experience).

sent = "".join(e for e in sent if e.isalpha())

Create a script similar to this:

#!/bin/sh -e

location=~/`date +%Y%m%d_%H%M%S`.db

mysqldump -u root --password=<your password> database_name > $location

gzip $location

Then you can edit the crontab of the user that the script is going to run as:

$> crontab -e

And append the entry

01 * * * * ~/script_path.sh

This will make it run on the first minute of every hour every day.

Then you just have to add in your rolls and other functionality and you are good to go.

<a [routerLink]="['../']" [queryParams]="{name: 'ferret'}" [fragment]="nose">Ferret Nose</a>

foo://example.com:8042/over/there?name=ferret#nose
\_/   \______________/\_________/ \_________/ \__/
 |           |            |            |        |
scheme    authority      path        query   fragment

For more info - https://angular.io/guide/router#query-parameters-and-fragments

  String dateTime="15-3-2019 09:50 AM" //time should be two digit like 08,09,10 
   DateTimeFormatter dtf  = DateTimeFormatter.ofPattern("dd-MM-yyyy hh:mm a");
        LocalDateTime zdt  = LocalDateTime.parse(dateTime,dtf);
        LocalDateTime now = LocalDateTime.now();
        ZoneId zone = ZoneId.of("Asia/Kolkata");
        ZoneOffset zoneOffSet = zone.getRules().getOffset(now);
        long a= zdt.toInstant(zoneOffSet).toEpochMilli();
        Log.d("time","---"+a);

you can get zone id form this a link!

if for some reason you need to add via code, you can use this:

mTextView.setCompoundDrawablesWithIntrinsicBounds(left, top, right, bottom);

where left, top, right bottom are Drawables

express-error-handler lets you specify custom templates, static pages, or error handlers for your errors. It also does other useful error-handling things that every app should implement, like protect against 4xx error DOS attacks, and graceful shutdown on unrecoverable errors. Here's how you do what you're asking for:

var errorHandler = require('express-error-handler'),
  handler = errorHandler({
    static: {
      '404': 'path/to/static/404.html'
    }
  });

// After all your routes...
// Pass a 404 into next(err)
app.use( errorHandler.httpError(404) );

// Handle all unhandled errors:
app.use( handler );

Or for a custom handler:

handler = errorHandler({
  handlers: {
    '404': function err404() {
      // do some custom thing here...
    }
  }
}); 

Or for a custom view:

handler = errorHandler({
  views: {
    '404': '404.jade'
  }
});

An alternative to assume-unchanged is skip-worktree. The latter has a different meaning, something like "Git should not track this file. Developers can, and are encouraged, to make local changes."

In your situation where you do not wish to track changes to (typically large) build files, assume-unchanged is a good choice.

In the situation where the file should have default contents and the developer is free to modify the file locally, but should not check their local changes back to the remote repo, skip-worktree is a better choice.

Another elegant option is to have a default file in the repo. Say the filename is BuildConfig.Default.cfg. The developer is expected to rename this locally to BuildConfig.cfg and they can make whatever local changes they need. Now add BuildConfig.cfg to .gitignore so the file is untracked.

See this question which has some nice background information in the accepted answer.

Events in modern DOM implementations have two phases, capturing and bubbling. The capturing phase is the first phase, flowing from the defaultView of the document to the event target, followed by the bubbling phase, flowing from the event target back to the defaultView. For more information, see http://www.w3.org/TR/DOM-Level-3-Events/#event-flow.

To handle the capturing phase of an event, you need to set the third argument for addEventListener to true:

document.body.addEventListener('click', fn, true); 

Sadly, as Wesley mentioned, the capturing phase of an event cannot be handled reliably, or at all, in older browsers.

One possible solution is to handle the mouseup event instead, since event order for clicks is:

1. mousedown
2. mouseup
3. click

If you can be sure you have no handlers cancelling the mouseup event, then this is one way (and, arguably, a better way) to go. Another thing to note is that many, if not most (if not all), UI menus disappear on mouse down.

There is no canonical answer, since XML fundamentally has no null concept. But I assume you want Xml/Object mapping (since object graphs have nulls); so the answer for you is "whatever your tool uses". If you write handling, that means whatever you prefer. For tools that use XML Schema, xsi:nil is the way to go. For most mappers, omitting matching element/attribute is the way to do it.

Just come across this, the answer is simple, use ISNULL. SQL won't return rows if the field you are testing has no value (in some of the records) when doing a text comparison search, eg:

WHERE wpp.comment NOT LIKE '%CORE%'

So, you have temporarily substitute a value in the null (empty) records by using the ISNULL command, eg

WHERE (ISNULL(wpp.comment,'')) NOT LIKE '%CORE%'

This will then show all your records that have nulls and omit any that have your matching criteria. If you wanted, you could put something in the commas to help you remember, eg

WHERE (ISNULL(wpp.comment,'some_records_have_no_value')) NOT LIKE '%CORE%'

You need to install the es2015 preset:

npm install babel-preset-es2015

and then configure babel-loader:

{
    test: /\.jsx?$/,
    loader: 'babel-loader',
    exclude: /node_modules/,
    query: {
        presets: ['es2015']
    }
}

This script works!

#/bin/bash
if [[ ( "$#" < 1 ) || ( !( "$1" == 1 ) && !( "$1" == 0 ) ) ]] ; then
    echo this script requires a 1 or 0 as first parameter.
else
    echo "first parameter is $1"
    xinput set-prop 12 "Device Enabled" $0
fi

But this also works, and in addition keeps the logic of the OP, since the question is about calculations. Here it is with only arithmetic expressions:

#/bin/bash
if (( $# )) && (( $1 == 0 || $1 == 1 )); then
    echo "first parameter is $1"
    xinput set-prop 12 "Device Enabled" $0
else
    echo this script requires a 1 or 0 as first parameter.
fi

The output is the same¹:

$ ./tmp.sh 
this script requires a 1 or 0 as first parameter.

$ ./tmp.sh 0
first parameter is 0

$ ./tmp.sh 1
first parameter is 1

$ ./tmp.sh 2
this script requires a 1 or 0 as first parameter.

_{[1] the second fails if the first argument is a string}

I think what you want is something like:

=INDEX(B:B,MATCH(C2,A:A,0))  

I should mention that MATCH checks the position at which the value can be found within A:A (given the 0, or FALSE, parameter, it looks only for an exact match and given its nature, only the first instance found) then INDEX returns the value at that position within B:B.

I wanted a more compact output than the great answers above using lapply, so here's an alternative wrapped as a small function.

# Example data
df <-
    data.frame(
        w = seq.int(10),
        x = LETTERS[seq.int(10)],
        y = factor(letters[seq.int(10)]),
        z = seq(
            as.POSIXct('2020-01-01'),
            as.POSIXct('2020-10-01'),
            length.out = 10
        )
    )

# Function returning compact column classes
col_classes <- function(df) {
    t(as.data.frame(lapply(df, function(x) paste(class(x), collapse = ','))))
}

# Return example data's column classes
col_classes(df)

  [,1]            
w "integer"       
x "character"     
y "factor"        
z "POSIXct,POSIXt"

You can try c#

public string ProcessMyDataItem(object myValue)
 {
  if (myValue == null)
   {
   return "0 %"";
  }
   else
  {
     if(Convert.ToInt32(myValue) < 50)
       return "0";
     else
      return myValue.ToString() + "%";
  }

 }

asp

 <div class="tooltip" style="display: none">                                                                  
      <div style="text-align: center; font-weight: normal">
   Value =<%# ProcessMyDataItem(Eval("Percentage")) %> </div>
 </div>

Open the hosts file located at : **C:\windows\system32\drivers\etc**.

Hosts file is for what?

Add the following at end of this file :

YourServerIP YourDNS

Example:

198.168.1.1 maps.google.com

It looks like this issue has to do with the difference between the Content-Type and Accept headers. In HTTP, Content-Type is used in request and response payloads to convey the media type of the current payload. Accept is used in request payloads to say what media types the server may use in the response payload.

So, having a Content-Type in a request without a body (like your GET request) has no meaning. When you do a POST request, you are sending a message body, so the Content-Type does matter.

If a server is not able to process the Content-Type of the request, it will return a 415 HTTP error. (If a server is not able to satisfy any of the media types in the request Accept header, it will return a 406 error.)

In OData v3, the media type "application/json" is interpreted to mean the new JSON format ("JSON light"). If the server does not support reading JSON light, it will throw a 415 error when it sees that the incoming request is JSON light. In your payload, your request body is verbose JSON, not JSON light, so the server should be able to process your request. It just doesn't because it sees the JSON light content type.

You could fix this in one of two ways:

1. Make the Content-Type "application/json;odata=verbose" in your POST request, or

2. Include the DataServiceVersion header in the request and set it be less than v3. For example:

   DataServiceVersion: 2.0;
   

(Option 2 assumes that you aren't using any v3 features in your request payload.)

Try this:

private int hour;
public int Hour
{
    get { return hour; }
    set
    {
        //make sure hour is positive
        if (value < MIN_HOUR)
        {
            hour = 0;
            MessageBox.Show("Hour value " + value.ToString() + " cannot be negative. Reset to " + MIN_HOUR.ToString(),
            "Invalid Hour", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
        }
        else
        {
            //take the modulus to ensure always less than 24 hours
            //works even if the value is already within range, or value equal to 24
            hour = value % MAX_HOUR;
        }
    }
}

To complete other answers, the gem-path gem can find the installation path of a particular gem.

Installation:

gem install gem-path

Usage:

gem path rails
=> /home/cbliard/.rvm/gems/ruby-2.1.5/gems/rails-4.0.13
gem path rails '< 4'
=> /home/cbliard/.rvm/gems/ruby-2.1.5/gems/rails-3.2.21

This is really handy as you can use it to grep or edit files:

grep -R 'Internal server error' "$(gem path thin)"
subl "$(gem path thin)"

Here is a table that is not a SELECT * FROM

SHOW TABLES FROM `db` LIKE 'tablename'; //zero rows = not exist

Got this from a database pro, here is what I was told:

select 1 from `tablename`; //avoids a function call
select * from INFORMATION_SCHEMA.tables where schema = 'db' and table = 'table' // slow. Field names not accurate
SHOW TABLES FROM `db` LIKE 'tablename'; //zero rows = does not exist

raise ValueError('could not find %c in %s' % (ch,str))

I agree with Charles Duffy that a proper XML parser is the right way to go.

But as to what's wrong with your sed command (or did you do it on purpose?).

• $data was not quoted, so $data is subject to shell's word splitting, filename expansion among other things. One of the consequences being that the spacing in the XML snippet is not preserved.

So given your specific XML structure, this modified sed command should work

title=$(sed -ne '/title/{s/.*<title>\(.*\)<\/title>.*/\1/p;q;}' <<< "$data")

Basically for the line that contains title, extract the text between the tags, then quit (so you don't extract the 2nd <title>)

It could be the way you are applying the DataContext to the Page. In WPF, everytime you navigate to a Page everything gets re-initialized, constructor gets called, loaded methods, everything. so if you are setting your DataContext inside your View you will no doubt be blowing away that SelectedItem that the user selected. In order to avoid that use the KeepAlive property of your pages.

<Page KeepAlive="True" ...>
   ...
</Page>

This will result in only the Loaded event being fired when navigating back to a page you have already visited. So you will need to ensure that you are setting the DataContext on Initialize (either externally or within the constructor) rather than Load.

However, this will only work for that instance of the Page. If you navigate to a new instance of that page it constructor will be called again.

The java design of the "enhanced for loop" was to not expose the iterator to code, but the only way to safely remove an item is to access the iterator. So in this case you have to do it old school:

 for(Iterator<String> i = names.iterator(); i.hasNext();) {
       String name = i.next();
       //Do Something
       i.remove();
 }

If in the real code the enhanced for loop is really worth it, then you could add the items to a temporary collection and call removeAll on the list after the loop.

EDIT (re addendum): No, changing the list in any way outside the iterator.remove() method while iterating will cause problems. The only way around this is to use a CopyOnWriteArrayList, but that is really intended for concurrency issues.

The cheapest (in terms of lines of code) way to remove duplicates is to dump the list into a LinkedHashSet (and then back into a List if you need). This preserves insertion order while removing duplicates.

You are most likely pushing a string 'NULL' to the table, rather then an actual NULL, but other things may be going on as well, an illustration:

mysql> CREATE TABLE date_test (pdd DATE NOT NULL);
Query OK, 0 rows affected (0.11 sec)

mysql> INSERT INTO date_test VALUES (NULL);
ERROR 1048 (23000): Column 'pdd' cannot be null
mysql> INSERT INTO date_test VALUES ('NULL');
Query OK, 1 row affected, 1 warning (0.05 sec)

mysql> show warnings;
+---------+------+------------------------------------------+
| Level   | Code | Message                                  |
+---------+------+------------------------------------------+
| Warning | 1265 | Data truncated for column 'pdd' at row 1 |
+---------+------+------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT * FROM date_test;
+------------+
| pdd        |
+------------+
| 0000-00-00 |
+------------+
1 row in set (0.00 sec)

mysql> ALTER TABLE date_test MODIFY COLUMN pdd DATE NULL;
Query OK, 1 row affected (0.15 sec)
Records: 1  Duplicates: 0  Warnings: 0

mysql> INSERT INTO date_test VALUES (NULL);
Query OK, 1 row affected (0.06 sec)

mysql> SELECT * FROM date_test;
+------------+
| pdd        |
+------------+
| 0000-00-00 |
| NULL       |
+------------+
2 rows in set (0.00 sec)

You can use the TryParse method that returns true if it successful:

Age age;

if(Enum.TryParse<Age>("myString", out age))
{
   //Here you can use age
}

Full disclosure, I am one of the maintainers of pdfminer.six.

Nowadays, there are multiple api's to extract text from a PDF, depending on your needs. Behind the scenes, all of these api's use the same logic for parsing and analyzing the layout.

(All the examples assume your PDF file is called example.pdf)

Commandline

If you want to extract text just once you can use the commandline tool pdf2txt.py:

$ pdf2txt.py example.pdf

High-level api

If you want to extract text with Python, you can use the high-level api. This approach is the go-to solution if you want to extract text programmatically from many PDF's.

from pdfminer.high_level import extract_text

text = extract_text('example.pdf')

Composable api

There is also a composable api that gives a lot of flexibility in handling the resulting objects. For example, you can implement your own layout algorithm using that. This method is suggested in the other answers, but I would only recommend this when you need to customize the way pdfminer.six behaves.

from io import StringIO

from pdfminer.converter import TextConverter
from pdfminer.layout import LAParams
from pdfminer.pdfdocument import PDFDocument
from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
from pdfminer.pdfpage import PDFPage
from pdfminer.pdfparser import PDFParser

output_string = StringIO()
with open('example.pdf', 'rb') as in_file:
    parser = PDFParser(in_file)
    doc = PDFDocument(parser)
    rsrcmgr = PDFResourceManager()
    device = TextConverter(rsrcmgr, output_string, laparams=LAParams())
    interpreter = PDFPageInterpreter(rsrcmgr, device)
    for page in PDFPage.create_pages(doc):
        interpreter.process_page(page)

print(output_string.getvalue())

// removing the viewcontrollers by class names from stack and then dismissing the current view.

 self.navigationController?.viewControllers.removeAll(where: { (vc) -> Bool in
      if vc.isKind(of: ViewController.self) || vc.isKind(of: ViewController2.self) 
       {
        return true
        } 
     else 
        {
         return false
         }
        })
self.navigationController?.popViewController(animated: false)
self.dismiss(animated: true, completion: nil)

This can also be a issue when you enter wrong password for your sign key.

You can use fiddler as webdebugger http://www.telerik.com/fiddler/web-debugging

Fiddler is a debugging tool from telerik software, which helps you to intercept every request that is initiated from your machine.

Spring source code to explain how ApplicationContextAware work
when you use ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
In AbstractApplicationContext class,the refresh() method have the following code:

// Prepare the bean factory for use in this context.
prepareBeanFactory(beanFactory);

enter this method,beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this)); will add ApplicationContextAwareProcessor to AbstractrBeanFactory.

protected void prepareBeanFactory(ConfigurableListableBeanFactory beanFactory) {
        // Tell the internal bean factory to use the context's class loader etc.
        beanFactory.setBeanClassLoader(getClassLoader());
        beanFactory.setBeanExpressionResolver(new StandardBeanExpressionResolver(beanFactory.getBeanClassLoader()));
        beanFactory.addPropertyEditorRegistrar(new ResourceEditorRegistrar(this, getEnvironment()));
        // Configure the bean factory with context callbacks.
        beanFactory.addBeanPostProcessor(new ApplicationContextAwareProcessor(this));
...........

When spring initialize bean in AbstractAutowireCapableBeanFactory, in method initializeBean,call applyBeanPostProcessorsBeforeInitialization to implement the bean post process. the process include inject the applicationContext.

@Override
    public Object applyBeanPostProcessorsBeforeInitialization(Object existingBean, String beanName)
            throws BeansException {
        Object result = existingBean;
        for (BeanPostProcessor beanProcessor : getBeanPostProcessors()) {
            result = beanProcessor.postProcessBeforeInitialization(result, beanName);
            if (result == null) {
                return result;
            }
        }
        return result;
    }

when BeanPostProcessor implement Objectto execute the postProcessBeforeInitialization method,for example ApplicationContextAwareProcessor that added before.

private void invokeAwareInterfaces(Object bean) {
        if (bean instanceof Aware) {
            if (bean instanceof EnvironmentAware) {
                ((EnvironmentAware) bean).setEnvironment(this.applicationContext.getEnvironment());
            }
            if (bean instanceof EmbeddedValueResolverAware) {
                ((EmbeddedValueResolverAware) bean).setEmbeddedValueResolver(
                        new EmbeddedValueResolver(this.applicationContext.getBeanFactory()));
            }
            if (bean instanceof ResourceLoaderAware) {
                ((ResourceLoaderAware) bean).setResourceLoader(this.applicationContext);
            }
            if (bean instanceof ApplicationEventPublisherAware) {
                ((ApplicationEventPublisherAware) bean).setApplicationEventPublisher(this.applicationContext);
            }
            if (bean instanceof MessageSourceAware) {
                ((MessageSourceAware) bean).setMessageSource(this.applicationContext);
            }
            if (bean instanceof ApplicationContextAware) {
                ((ApplicationContextAware) bean).setApplicationContext(this.applicationContext);
            }
        }
    }

Most answers here are pretty old.

In the past when un managed nand was the most popular storage technology, yaffs2 was the most common file system. This days there are few devices using un-managed nand, and those still in use are slowly migrating to ubifs.

Today most common storage is emmc (managed nand), for such devices ext4 is far more popular, but, this file system is slowly clears its way for f2fs (flash friendly fs).

Edit: f2fs will probably won't make it as the common fs for flash devices (including android)

You have already got sufficient answer for your question. But may be my answer help you more about |= kind of binary operators.

I am writing table for bitwise operators:
Following are valid:

----------------------------------------------------------------------------------------
Operator   Description                                   Example
----------------------------------------------------------------------------------------
|=        bitwise inclusive OR and assignment operator   C |= 2 is same as C = C | 2
^=        bitwise exclusive OR and assignment operator   C ^= 2 is same as C = C ^ 2
&=        Bitwise AND assignment operator                C &= 2 is same as C = C & 2
<<=       Left shift AND assignment operator             C <<= 2 is same as C = C << 2
>>=       Right shift AND assignment operator            C >>= 2 is same as C = C >> 2  
----------------------------------------------------------------------------------------

note all operators are binary operators.

Also Note: _{(for below points I wanted to add my answer)}

• >>> is bitwise operator in Java that is called Unsigned shift
  but >>>= not an operator in Java. >>>= operator

• ~ is bitwise complement bits, 0 to 1 and 1 to 0 (Unary operator) but ~= not an operator.

• Additionally, ! Called Logical NOT Operator, but != Checks if the value of two operands are equal or not, if values are not equal then condition becomes true. e.g. (A != B) is true. where as A=!B means if B is true then A become false (and if B is false then A become true).

_{side note: | is not called pipe, instead its called OR, pipe is shell terminology transfer one process out to next..}

Try using %0A in the URL, just like you've used %20 instead of the space character.

for JPA 2+ this does the trick

 <jar-file></jar-file>

scan all jars in war for annotated @Entity classes

ALTER TABLE myTable ALTER COLUMN myColumn {DataType} NULL

where {DataType} is the current data type of that column (For example int or varchar(10))

document.getElementById('myRadio') returns you the DOM element, i'll reference it as elem in this answer.

elem.checked accesses the property named checked of the DOM element. This property is always a boolean.

When writing HTML you use checked="checked" in XHTML; in HTML you can simply use checked. When setting the attribute (this is done via .setAttribute('checked', 'checked')) you need to provide a value since some browsers consider an empty value being non-existent.

However, since you have the DOM element you have no reason to set the attribute since you can simply use the - much more comfortable - boolean property for it. Since non-empty strings are considered true in a boolean context, setting elem.checked to 'checked' or anything else that is not a falsy value (even 'false' or '0') will check the checkbox. There is not reason not to use true and false though so you should stick with the proper values.

You cannot guarantee that the automatically-generated WSDL will match the WSDL from which you create the service interface.

In your scenario, you should place the WSDL file on your web site somewhere, and have consumers use that URL. You should disable the Documentation protocol in the web.config so that "?wsdl" does not return a WSDL. See <protocols> Element.

Also, note the first paragraph of that article:

This topic is specific to a legacy technology. XML Web services and XML Web service clients should now be created using Windows Communication Foundation (WCF).

select * from table order by random() limit 1000;

If you know how many rows you want, check out tsm_system_rows.

tsm_system_rows

module provides the table sampling method SYSTEM_ROWS, which can be used in the TABLESAMPLE clause of a SELECT command.

This table sampling method accepts a single integer argument that is the maximum number of rows to read. The resulting sample will always contain exactly that many rows, unless the table does not contain enough rows, in which case the whole table is selected. Like the built-in SYSTEM sampling method, SYSTEM_ROWS performs block-level sampling, so that the sample is not completely random but may be subject to clustering effects, especially if only a small number of rows are requested.

First install the extension

CREATE EXTENSION tsm_system_rows;

Then your query,

SELECT *
FROM table
TABLESAMPLE SYSTEM_ROWS(1000);

1st preference external style sheet.

<span class="myClass">test</span>

css

.myClass
{
color:red;
}

2nd preference inline style

<span style="color:red">test</span>

<font> as mentioned is deprecated.

I got this error when my server ran out of disk space and closed the connection midway during generating the response and simply closed the connection

Given a floating point value, we can round it trivially with printf:

# round $1 to $2 decimal places
round() {
    printf "%.{$2:-0}f" "$1"
}

Then,

# do some math, bc style
math() {
    echo "$*" | bc -l
}

$ echo "Pi, to five decimal places, is $(round $(math "4*a(1)") 5)"
Pi, to five decimal places, is 3.14159

Or, to use the original request:

$ echo "3/2, rounded to the nearest integer, is $(round $(math "3/2") 0)"
3/2, rounded to the nearest integer, is 2

Method 1

Word boundaries would work perfectly here, such as with:

\b\w{3,8}\b
\b\w{2,}
\b\w{,10}\b
\b\w{5}\b

RegEx Demo 1

Java

Some languages such as Java and C++ are double-escape required:

\\b\\w{3,8}\\b
\\b\\w{2,}
\\b\\w{,10}\\b
\\b\\w{5}\\b

^{PS: \\b\\w{,10}\\b may not work for all languages or flavors.}

Test 1

import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class RegularExpression{

    public static void main(String[] args){


        final String regex = "\\b\\w{3,8}\\b";
        final String string = "words with length three to eight";

        final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
        final Matcher matcher = pattern.matcher(string);

        while (matcher.find()) {
            System.out.println("Full match: " + matcher.group(0));
        }

    }
}

Output 1

Full match: words
Full match: with
Full match: length
Full match: three
Full match: eight

Method 2

Another good-to-know method is to use negative lookarounds:

(?<!\w)\w{3,8}(?!\w)
(?<!\w)\w{2,}
(?<!\w)\w{,10}(?!\w)
(?<!\w)\w{5}(?!\w)

Java

(?<!\\w)\\w{3,8}(?!\\w)
(?<!\\w)\\w{2,}
(?<!\\w)\\w{,10}(?!\\w)
(?<!\\w)\\w{5}(?!\\w)

RegEx Demo 2

Test 2

import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class RegularExpression{

    public static void main(String[] args){


        final String regex = "(?<!\\w)\\w{1,10}(?!\\w)";
        final String string = "words with length three to eight";

        final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
        final Matcher matcher = pattern.matcher(string);

        while (matcher.find()) {
            System.out.println("Full match: " + matcher.group(0));
        }

    }
}

Output 2

Full match: words
Full match: with
Full match: length
Full match: three
Full match: to
Full match: eight

RegEx Circuit

jex.im visualizes regular expressions:

If you wish to simplify/modify/explore the expression, it's been explained on the top right panel of regex101.com. If you'd like, you can also watch in this link, how it would match against some sample inputs.

I wasn't able to get mine working from the command-line switch but I have been able to do it just by setting my HTTP_PROXY environment variable. (Note that case seems to be important). I have a batch file that has a line like this in it:

SET HTTP_PROXY=http://%USER%:%PASSWORD%@%SERVER%:%PORT%

I set the four referenced variables before I get to this line obviously. As an example if my username is "wolfbyte", my password is "secret" and my proxy is called "pigsy" and operates on port 8080:

SET HTTP_PROXY=http://wolfbyte:secret@pigsy:8080

You might want to be careful how you manage that because it stores your password in plain text in the machine's session but I don't think it should be too much of an issue.

Update for 4.0

Android 4.0.3 Platform

Arabic, Egypt (ar_EG)
Arabic, Israel (ar_IL)
Bulgarian, Bulgaria (bg_BG)
Catalan, Spain (ca_ES)
Chinese, PRC (zh_CN)
Chinese, Taiwan (zh_TW)
Croatian, Croatia (hr_HR)
Czech, Czech Republic (cs_CZ)
Danish, Denmark(da_DK)
Dutch, Belgium (nl_BE)
Dutch, Netherlands (nl_NL)
English, Australia (en_AU)
English, Britain (en_GB)
English, Canada (en_CA)
English, India (en_IN)
English, Ireland (en_IE)
English, New Zealand (en_NZ)
English, Singapore(en_SG)
English, South Africa (en_ZA)
English, US (en_US)
Finnish, Finland (fi_FI)
French, Belgium (fr_BE)
French, Canada (fr_CA)
French, France (fr_FR)
French, Switzerland (fr_CH)
German, Austria (de_AT)
German, Germany (de_DE)
German, Liechtenstein (de_LI)
German, Switzerland (de_CH)
Greek, Greece (el_GR)
Hebrew, Israel (he_IL)
Hindi, India (hi_IN)
Hungarian, Hungary (hu_HU)
Indonesian, Indonesia (id_ID)
Italian, Italy (it_IT)
Italian, Switzerland (it_CH)
Japanese (ja_JP)
Korean (ko_KR)
Latvian, Latvia (lv_LV)
Lithuanian, Lithuania (lt_LT)
Norwegian bokmål, Norway (nb_NO)
Polish (pl_PL)
Portuguese, Brazil (pt_BR)
Portuguese, Portugal (pt_PT)
Romanian, Romania (ro_RO)
Russian (ru_RU)
Serbian (sr_RS)
Slovak, Slovakia (sk_SK)
Slovenian, Slovenia (sl_SI)
Spanish (es_ES)
Spanish, US (es_US)
Swedish, Sweden (sv_SE)
Tagalog, Philippines (tl_PH)
Thai, Thailand (th_TH)
Turkish, Turkey (tr_TR)
Ukrainian, Ukraine (uk_UA)
Vietnamese, Vietnam (vi_VN)

SOURCE: http://us.dinodirect.com/Forum/Latest-Posts-5/Android-Versions-and-their-Locales-1-86587/

I don't see much details about performance and optimizer in the other answers.

Sometimes it is good to know that only INNER JOIN is associative which means the optimizer has the most option to play with it. It can reorder the join order to make it faster keeping the same result. The optimizer can use the most join modes.

Generally it is a good practice to try to use INNER JOIN instead of the different kind of joins. (Of course if it is possible considering the expected result set.)

There are a couple of good examples and explanation here about this strange associative behavior:

• Are left outer joins associative?
• Does the join order matter in SQL?

There is one interesting option in this scenario I haven`t found in answers here.

You can Nack messages with "requeue" feature in one consumer to process them in another. Generally speaking it is not a right way, but maybe it will be good enough for someone.

https://www.rabbitmq.com/nack.html

And beware of loops (when all concumers nack+requeue message)!

For Microsoft Access

UPDATE TableA A
    INNER JOIN TableB B
    ON A.ID = B.ID
SET A.Name = B.Name

Note for anyone running Vagrant: this can be caused by a bug with their shared folders. Specify NFS for your shared folders in your Vagrantfile to avoid this happening.

Simply adding type: "nfs" to the end will do the trick, like so:

config.vm.synced_folder ".", "/vagrant", type: "nfs"

try this -

awk '{print $0|"sort -t',' -nk3 "}' user.csv

OR

sort -t',' -nk3 user.csv

Here are several ways. Choose most convenient.

1. Configure your web server to redirect all non-secure requests to https. Example of a nginx config:

   server {
       listen 80 default_server;
       listen [::]:80 default_server;
       server_name example.com www.example.com;
       return 301 https://example.com$request_uri;
   }
   

2. Set your environment variable APP_URL using https:

   APP_URL=https://example.com
   

3. Use helper secure_url() (Laravel5.6)

4. Add following string to AppServiceProvider::boot() method (for version 5.4+):

   \Illuminate\Support\Facades\URL::forceScheme('https');
   

Update:

5. Implicitly setting scheme for route group (Laravel5.6):

   Route::group(['scheme' => 'https'], function () {
       // Route::get(...)->name(...);
   });
   

Complete working code would look like this:

<script> 
$(document).ready(function(){
setInterval(function(){
      $("#here").load(window.location.href + " #here" );
}, 3000);
});
</script>

<div id="here">dynamic content ?</div>

self reloading div container refreshing every 3 sec.

You need to create the project on GitHub first. After that go to the project directory and run in terminal:

git init
git remote add origin https://github.com/xxx/yyy.git
git add .
git commit -m "first commit"
git push -u origin master

There are two ways you can do this. You can use the throw the values into a hash for a lookup table, as suggested by the other posts. ( I'll add just another idiom. )

my %bad_param_lookup;
@bad_param_lookup{ @bad_params } = ( 1 ) x @bad_params;

But if it's data of mostly word characters and not too many meta, you can dump it into a regex alternation:

use English qw<$LIST_SEPARATOR>;

my $regex_str = do { 
    local $LIST_SEPARATOR = '|';
    "(?:@bad_params)";
 };

 # $front_delim and $back_delim being any characters that come before and after. 
 my $regex = qr/$front_delim$regex_str$back_delim/;

This solution would have to be tuned for the types of "bad values" you're looking for. And again, it might be totally inappropriate for certain types of strings, so caveat emptor.

Use the checked attribute.

<input type="radio" name="imgsel"  value="" checked /> 

or

<input type="radio" name="imgsel"  value="" checked="checked" /> 

Unfortunately you can't do this with out adding a little extra HTML and having one piece of CSS rely on another.

HTML

First you need to wrap your header,footer and #body into a #holder div:

<div id="holder">
    <header>.....</header>
    <div id="body">....</div>
    <footer>....</footer>
</div>

CSS

Then set height: 100% to html and body (actual body, not your #body div) to ensure you can set minimum height as a percentage on child elements.

Now set min-height: 100% on the #holder div so it fills the content of the screen and use position: absolute to sit the footer at the bottom of the #holder div.

Unfortunately, you have to apply padding-bottom to the #body div that is the same height as the footer to ensure that the footer does not sit above any content:

html,body{
    height: 100%
}

#holder{
    min-height: 100%;
    position:relative;
}

#body{
    padding-bottom: 100px;    /* height of footer */
}

footer{
    height: 100px; 
    width:100%;
    position: absolute;
    left: 0;
    bottom: 0; 
}

Working example, short body: http://jsfiddle.net/ELUGc/

Working example, long body: http://jsfiddle.net/ELUGc/1/

Getting the Text of ComboBox when the item is changed

     self.ui.comboBox.activated.connect(self.pass_Net_Adap)

  def pass_Net_Adap(self):
      print str(self.ui.comboBox.currentText())

ExiRe wrote:

Such behavior of ruby is really frustrating. I mean if you move to private section self.method then it is NOT private. But if you move it to class << self then it suddenly works. It is just disgusting.

Confusing it probably is, frustrating it may well be, but disgusting it is definitely not.

It makes perfect sense once you understand Ruby's object model and the corresponding method lookup flow, especially when taking into consideration that private is NOT an access/visibility modifier, but actually a method call (with the class as its recipient) as discussed here... there's no such thing as "a private section" in Ruby.

To define private instance methods, you call private on the instance's class to set the default visibility for subsequently defined methods to private... and hence it makes perfect sense to define private class methods by calling private on the class's class, ie. its metaclass.

Other mainstream, self-proclaimed OO languages may give you a less confusing syntax, but you definitely trade that off against a confusing and less consistent (inconsistent?) object model without the power of Ruby's metaprogramming facilities.

In my case, I need to dump the sql result into a file on the client side. This is the most typical use case to off load data from the database. In many situations, you don't have access to the server or don't want to write your result to the server.

mysql -h hostname -u username -ppwd -e "mysql simple sql statement that last for less than a line" DATABASE_NAME > outputfile_on_the.client

The problem comes when you have a complicated query that last for several lines; you cannot use the command line to dump the result to a file easily. In such cases, you can put your complicated query into a file, such as longquery_file.sql, then execute the command.

mysql -h hn -u un -ppwd < longquery_file.sql DBNAME > output.txt

This worked for me. The only difficulty with me is the tab character; sometimes I use for group_cancat(foo SEPARATOR 0x09) will be written as '\t' in the output file. The 0x09 character is ASCII TAB. But this problem is not particular to the way we dump sql results to file. It may be related to my pager. Let me know when you find an answer to this problem. I will update this post.

In addition to above answers suggesting (1) the modification of the configuration files pg_hba.conf and (2) postgresql.conf and (3) restarting the PostgreSQL service, some Windows computers might also require incoming TCP traffic to be allowed on the port (usually 5432).

To do this, you would need to open Windows Firewall and add an inbound rule for the port (e.g. 5432).

Head to Control Panel\System and Security\Windows Defender Firewall > Advanced Settings > Actions (right tab) > Inbound Rules > New Rule… > Port > Specific local ports and type in the port your using, usually 5432 > (defaults settings for the rest and type any name you'd like)

Now, try connecting again from pgAdmin on the client computer. Restarting the service is not required.

Short answer:

There is no difference in semantic.

Specifically, @GetMapping is a composed annotation that acts as a shortcut for @RequestMapping(method = RequestMethod.GET).

Further reading:

RequestMapping can be used at class level:

This annotation can be used both at the class and at the method level. In most cases, at the method level applications will prefer to use one of the HTTP method specific variants @GetMapping, @PostMapping, @PutMapping, @DeleteMapping, or @PatchMapping.

while GetMapping only applies to method:

Annotation for mapping HTTP GET requests onto specific handler methods.

https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/bind/annotation/GetMapping.html

https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/web/bind/annotation/RequestMapping.html

Simplest way I can think of:

# checking whether foo is a boolean
!!foo == foo

you may use

ImageSourceConverter class

to get what you want

    img1.Source = (ImageSource)new ImageSourceConverter().ConvertFromString("/Assets/check.png");

Even if you do xcode-select --install it was not fixing that for me as it showed some network error. The problem was that it could not connect to the app store. I did the following to fix it.

1. Open keystore
2. Go to system root and select certificates.
3. Open digicert high assurance EV.
4. Expand the trust section, mark it as never trust.
5. Restart system now repeat step 1, 2, 3. and mark the trust policy as back to use system defaults.

Your app store should work now and you should be able to run xcode-select --install

Please make use of the code below to display images inline:

<img style='vertical-align:middle;' src='somefolder/icon.gif'>
<div style='vertical-align:middle; display:inline;'>
Your text here
</div>

You can use the command:

grep --color='auto' -P -n "[\x80-\xFF]" file.xml

This will give you the line number, and will highlight non-ascii chars in red.

In some systems, depending on your settings, the above will not work, so you can grep by the inverse

grep --color='auto' -P -n "[^\x00-\x7F]" file.xml

Note also, that the important bit is the -P flag which equates to --perl-regexp: so it will interpret your pattern as a Perl regular expression. It also says that

this is highly experimental and grep -P may warn of unimplemented features.

var stack = [1,2,3,4,5,6];

stack.reverse().shift();

stack.push(0);

Output will be: Array[0,1,2,3,4,5]. This will allow you to keep the same amount of array elements as you push a new value in.

In your controller, you are using an http scheme, but I think you should be using a ws scheme, as you are using websockets. Try to use ws://localhost:3000 in your connect function.

For those trying to update config

If having trouble updating your npm config, try instead running using the -g flag. This solved the issue on Win 10 for me after trying everything else.

npm config edit -g

I am able to update the config and changes are reflected everywhere. This may be due to running npm in an organizational scope.

Looks like the path you gave doesn't have any bootstrap files in them.

href="~/lib/bootstrap/dist/css/bootstrap.min.css"

Make sure the files exist over there , else point the files to the correct path, which should be in your case

href="~/node_modules/bootstrap/dist/css/bootstrap.min.css"

No need for jQuery

JavaScript does have a native .trim() method.

var name = "    John Smith  ";
name = name.trim();

console.log(name); // "John Smith"

Example Here

String.prototype.trim()

The trim() method removes whitespace from both ends of a string. Whitespace in this context is all the whitespace characters (space, tab, no-break space, etc.) and all the line terminator characters (LF, CR, etc.).

Try following query to format datetime in sql server

FORMAT (frr.valid_from , 'dd/MM/yyyy hh:mm:ss')

in addition to a watchpoint nested inside a breakpoint you can also set a single breakpoint on the 'filename:line_number' and use a condition. I find it sometimes easier.

(gdb) break iter.c:6 if i == 5
Breakpoint 2 at 0x4004dc: file iter.c, line 6.
(gdb) c
Continuing.
0
1
2
3
4

Breakpoint 2, main () at iter.c:6
6           printf("%d\n", i);

If like me you get tired of line numbers changing, you can add a label then set the breakpoint on the label like so:

#include <stdio.h>
main()
{ 
     int i = 0;
     for(i=0;i<7;++i) {
       looping:
        printf("%d\n", i);
     }
     return 0;
}

(gdb) break main:looping if i == 5

Here is the latest sample of Google's geocode Web Service

https://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&key=YOUR_API_KEY

Simply change the YOUR_API_KEY to the API key you get from Google Geocoding API

P/S: Geocoding API is under Places NOT Maps ;)

ES6 Update - ES6 (ES2015 specification) allows for default parameters

The following will work just fine in an ES6 (ES015) environment...

function(nodeBox, str="hai")
{
  // ...
}

With .split:

var arr = str.split( /(?<=^(?:.{3})+)(?!$)/ )  // [ 'abc', 'def', 'ghi', 'jkl' ]

and .replace will be:

var replaced = str.replace( /(?<=^(.{3})+)(?!$)/g, ' || ' )  // 'abc || def || ghi || jkl'

/(?!$)/ is to to stop before end/$/, without is:

var arr      = str.split( /(?<=^(?:.{3})+)/ )        // [ 'abc', 'def', 'ghi', 'jkl' ]     // I don't know why is not [ 'abc', 'def', 'ghi', 'jkl' , '' ], comment?
var replaced = str.replace( /(?<=^(.{3})+)/g, ' || ')  // 'abc || def || ghi || jkl || '

ignoring group /(?:...)/ is no need in .replace but in .split is adding groups to arr:

var arr = str.split( /(?<=^(.{3})+)(?!$)/ )  // [ 'abc', 'abc', 'def', 'abc', 'ghi', 'abc', 'jkl' ]

For the MVC using Model. Model:

public class UserInfo
{
    public string UserID { get; set; }
    public string UserName { get; set; }
    public string Password { get; set; }
    public bool RememberMe { get; set; }
}

HTML:

<input type="checkbox" value="true" id="checkbox1" name="RememberMe" checked="@Model.RememberMe"/>
<label for="checkbox1"></label>

In [HttpPost] function, we can get its properties.

[HttpPost]
public ActionResult Login(UserInfo user)
{
   //...
   return View(user);
}

This would restore focus to the previous application and exit the script if the answer was empty.

a=$(osascript -e 'try
tell app "SystemUIServer"
set answer to text returned of (display dialog "" default answer "")
end
end
activate app (path to frontmost application as text)
answer' | tr '\r' ' ')
[[ -z "$a" ]] && exit

If you told System Events to display the dialog, there would be a small delay if it wasn't running before.

For documentation about display dialog, open the dictionary of Standard Additions in AppleScript Editor or see the AppleScript Language Guide.

here is my implementation

public static byte[] intToByteArray(int a) {
    return BigInteger.valueOf(a).toByteArray();
}

public static int byteArrayToInt(byte[] b) {
    return new BigInteger(b).intValue();
}

Ahh... nevermind. It's always the search after the question is posed that yields the answer. My object that is being serialized is obj and has already been defined. Adding an XMLSerializerNamespace with a single empty namespace to the collection does the trick.

In VB like this:

Dim xs As New XmlSerializer(GetType(cEmploymentDetail))
Dim ns As New XmlSerializerNamespaces()
ns.Add("", "")

Dim settings As New XmlWriterSettings()
settings.OmitXmlDeclaration = True

Using ms As New MemoryStream(), _
    sw As XmlWriter = XmlWriter.Create(ms, settings), _
    sr As New StreamReader(ms)
xs.Serialize(sw, obj, ns)
ms.Position = 0
Console.WriteLine(sr.ReadToEnd())
End Using

in C# like this:

//Create our own namespaces for the output
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();

//Add an empty namespace and empty value
ns.Add("", "");

//Create the serializer
XmlSerializer slz = new XmlSerializer(someType);

//Serialize the object with our own namespaces (notice the overload)
slz.Serialize(myXmlTextWriter, someObject, ns);

Add cast RemoteWebDriver to driver initialize and you will have the .setLogLevel method:

import java.util.logging.Level;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.remote.RemoteWebDriver;

public class PrintLogTest {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver", "/Users/.../chromedriver");
        WebDriver driver = new ChromeDriver();

        //here
        ((RemoteWebDriver) driver).setLogLevel(Level.INFO);

        driver.get("https://google.com/");
        driver.findElement(By.name("q")).sendKeys("automation test");
        driver.quit();
    }
}

Example output:

Jun 15, 2020 4:27:04 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executing: get [430aec21a9beb6340a4185c4ea6a693d, get {url=https://google.com/}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executed: [430aec21a9beb6340a4185c4ea6a693d, get {url=https://google.com/}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executing: findElement [430aec21a9beb6340a4185c4ea6a693d, findElement {using=name, value=q}]
Jun 15, 2020 4:27:06 PM org.openqa.selenium.remote.RemoteWebDriver log
INFO: Executed: [430aec21a9beb6340a4185c4ea6a693d, findElement {using=name, value=q}]
...
...

At least I've tried it on ChromeDriver() and FirefoxDriver() and it working fine.

I wanted to be able to add locationchange event listeners. After the modification below, we'll be able to do it, like this

window.addEventListener('locationchange', function(){
    console.log('location changed!');
})

In contrast, window.addEventListener('hashchange',()=>{}) would only fire if the part after a hashtag in a url changes, and window.addEventListener('popstate',()=>{}) doesn't always work.

This modification, similar to Christian's answer, modifies the history object to add some functionality.

By default, before these modifications, there's a popstate event, but there are no events for pushstate, and replacestate.

This modifies these three functions so that all fire a custom locationchange event for you to use, and also pushstate and replacestate events if you want to use those.

These are the modifications:

history.pushState = ( f => function pushState(){
    var ret = f.apply(this, arguments);
    window.dispatchEvent(new Event('pushstate'));
    window.dispatchEvent(new Event('locationchange'));
    return ret;
})(history.pushState);

history.replaceState = ( f => function replaceState(){
    var ret = f.apply(this, arguments);
    window.dispatchEvent(new Event('replacestate'));
    window.dispatchEvent(new Event('locationchange'));
    return ret;
})(history.replaceState);

window.addEventListener('popstate',()=>{
    window.dispatchEvent(new Event('locationchange'))
});

Note:

We're creating a closure, old = (f=>function new(){f();...})(old) replaces old with a new function that contains the previous old saved within it (old is not run at this moment, but it will be run inside of new)

The situation you describe is pretty fishy. Whenever you close your program's startup form, the entire application should quit automatically, including closing all other open forms. Make sure that you're closing the correct form, and you should not experience any problems.

The other possibility is that you've changed your project (using its Properties page) not to close until all open windows have been closed. In this mode, your application will not exit until the last remaining open form has been closed. If you've chosen this setting, you have to make sure that you call the Close method of all forms that you've shown during the course of application, not just the startup/main form.

The first setting is the default for a reason, and if you've changed it, you probably want to go fix it back.
It is by far the most intuitive model for normal applications, and it prevents exactly the situation you describe. For it to work properly, make sure that you have specified your main form as the "Startup form" (rather than a splash screen or log-in form).

The settings I'm talking about are highlighted here:

But primarily, note that you should never have to call Application.Exit in a properly-designed application. If you find yourself having to do this in order for your program to close completely, then you are doing something wrong. Doing it is not a bad practice in itself, as long as you have a good reason. The other two answers fail to explain that, and thus I feel are incomplete at best.

Python's tuples, dicts, and objects offer the programmer a smooth tradeoff between formality and convenience for small data structures ("things"). For me, the choice of how to represent a thing is dictated mainly by how I'm going to use the structure. In C++, it's a common convention to use struct for data-only items and class for objects with methods, even though you can legally put methods on a struct; my habit is similar in Python, with dict and tuple in place of struct.

For coordinate sets, I'll use a tuple rather than a point class or a dict (and note that you can use a tuple as a dictionary key, so dicts make great sparse multidimensional arrays).

If I'm going to be iterating over a list of things, I prefer unpacking tuples on the iteration:

for score,id,name in scoreAllTheThings():
    if score > goodScoreThreshold:
        print "%6.3f #%6d %s"%(score,id,name)

...as the object version is more cluttered to read:

for entry in scoreAllTheThings():
    if entry.score > goodScoreThreshold:
        print "%6.3f #%6d %s"%(entry.score,entry.id,entry.name)

...let alone the dict.

for entry in scoreAllTheThings():
    if entry['score'] > goodScoreThreshold:
        print "%6.3f #%6d %s"%(entry['score'],entry['id'],entry['name'])

If the thing is widely used, and you find yourself doing similar non-trivial operations on it in multiple places in the code, then it's usually worthwhile to make it a class object with appropriate methods.

Finally, if I'm going to be exchanging data with non-Python system components, I'll most often keep them in a dict because that's best suited to JSON serialization.

From app.module.ts:

• erase import line for the specific component;
• erase its declaration from @NgModule;

Then delete the folder of the component you want to delete and its included files (.component.ts, .component.html, .component.css and .component.spec.ts).

Done.

-

I read people saying about erasing it from main.ts. You were not supposed to import it from there in the first place as it already imports AppModule, and AppModule is the one importing all the components you created.

ToString("X2") prints the input in Hexadecimal

Go to Manage Jenkins > Configure Global Security and select the Enable Security checkbox.

For the basic username/password authentication, I would recommend selecting Jenkins Own User Database for the security realm and then selecting Logged in Users can do anything or a matrix based strategy (in case when you have multiple users with different permissions) for the Authorization.

This week in milliseconds:

// get today and clear time of day
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 0); // ! clear would not reset the hour of day !
cal.clear(Calendar.MINUTE);
cal.clear(Calendar.SECOND);
cal.clear(Calendar.MILLISECOND);

// get start of this week in milliseconds
cal.set(Calendar.DAY_OF_WEEK, cal.getFirstDayOfWeek());
System.out.println("Start of this week:       " + cal.getTime());
System.out.println("... in milliseconds:      " + cal.getTimeInMillis());

// start of the next week
cal.add(Calendar.WEEK_OF_YEAR, 1);
System.out.println("Start of the next week:   " + cal.getTime());
System.out.println("... in milliseconds:      " + cal.getTimeInMillis());

This month in milliseconds:

// get today and clear time of day
Calendar cal = Calendar.getInstance();
cal.set(Calendar.HOUR_OF_DAY, 0); // ! clear would not reset the hour of day !
cal.clear(Calendar.MINUTE);
cal.clear(Calendar.SECOND);
cal.clear(Calendar.MILLISECOND);

// get start of the month
cal.set(Calendar.DAY_OF_MONTH, 1);
System.out.println("Start of the month:       " + cal.getTime());
System.out.println("... in milliseconds:      " + cal.getTimeInMillis());

// get start of the next month
cal.add(Calendar.MONTH, 1);
System.out.println("Start of the next month:  " + cal.getTime());
System.out.println("... in milliseconds:      " + cal.getTimeInMillis());

min(df['some_property'])
max(df['some_property'])

The built-in functions work well with Pandas Dataframes.

Actually I cannot reproduce the problem. The script as written in the question works fine, except for the case where $1 is empty.

However, there is a problem in the script related to redirection of stderr. Although the two forms &> and >& exist, in your case you want to use >&. You already redirected stdout, that's why the form &> does not work. You can easily verify it this way:

getent /etc/passwd username >/dev/null 2&>1
ls

You will see a file named 1 in the current directory. You want to use 2>&1 instead, or use this:

getent /etc/passwd username &>/dev/null

This also redirects stdout and stderr to /dev/null.

Warning Redirecting stderr to /dev/null might not be such a good idea. When things go wrong, you will have no clue why.

You can't influence neither type (tab/window) nor dimensions that way. You'll have to use JavaScript's window.open() for that.

Actually, the HTML 4.01 spec says that these attributes do not require values. I haven't personally encountered a situation where providing a value rendered these controls as unselected.

Here are the respective links to the spec document for selected and checked.

Edit: Firebug renders the checkbox as checked regardless of any values I put in quotes for the checked attribute (including just typing "checked" with no values whatsoever), and IE 8's Developer Tools forces checked="checked". I'm not sure if any similar tools exist for other browsers that might alter the rendered state of a checkbox, however.

This should work:

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

The solution is already answered here above (long ago).

But the implicit question "why does it work in FF and IE but not in Chrome and Safari" is found in the error text "Not allowed to load local resource": Chrome and Safari seem to use a more strict implementation of sandboxing (for security reasons) than the other two (at this time 2011).

This applies for local access. In a (normal) server environment (apache ...) the file would simply not have been found.

Try making your constructor private like this:

private Foo newClass = new Foo();

Just a note...

If you add that code to setclasspath.bat or setclasspath.sh, it will actually be used by all of Tomcat's scripts you could run, rather than just Catalina.

The method for setting the variable is as the other's have described.

This is a very good function file available on Matlab Central File Exchange.

countmember.m link

This function file is totally vectorized and hence very quick. Plus, in comparison to the function being referred to in aioobe's answer, this function doesn't use the accumarray function, which is why this is even compatible with older versions of Matlab. Also, it works for cell arrays as well as numeric arrays.

SOLUTION : You can use this function in conjunction with the built in matlab function, "unique".

occurance_count = countmember(unique(M),M)

occurance_count will be a numeric array with the same size as that of unique(M) and the different values of occurance_count array will correspond to the count of corresponding values (same index) in unique(M).

I had the same issue after installing the 64 bit Oracle client on Windows 7 64 bit. The solution that worked for me:

1. Open a command prompt in administrator mode
2. cd \oracle\product\11.2.0\client_64\BIN
3. c:\Windows\system32\regsvr32.exe OraOLEDB11.dll

some times need to use name of pc on windows

first step) put in config file of mysql:

mysqld.cnf SET bind-address= 0.0.0.0

(to let recibe connections over tcp/ip)

second step) make user in mysql, table users, with name of pc on windows propierties, NOT ip

Typically for a use case which involves a sequence of pages and in the final stage or page we post the data to the server. In this scenario we need to maintain the state. In the below snippet we maintain the state on the client side

As mentioned in the above post. The session is created using the factory recipe.

Client side session can be maintained using the value provider recipe as well.

Please refer to my post for the complete details. session-tracking-in-angularjs

Let's take an example of a shopping cart which we need to maintain across various pages / angularjs controller.

In typical shopping cart we buy products on various product / category pages and keep updating the cart. Here are the steps.

Here we create the custom injectable service having a cart inside using the "value provider recipe".

'use strict';
function Cart() {
    return {
        'cartId': '',
        'cartItem': []
    };
}
// custom service maintains the cart along with its behavior to clear itself , create new , delete Item or update cart 

app.value('sessionService', {
    cart: new Cart(),
    clear: function () {
        this.cart = new Cart();
        // mechanism to create the cart id 
        this.cart.cartId = 1;
    },
    save: function (session) {
        this.cart = session.cart;
    },
    updateCart: function (productId, productQty) {
        this.cart.cartItem.push({
            'productId': productId,
            'productQty': productQty
        });
    },
    //deleteItem and other cart operations function goes here...
});

I just found this quite impressive tutorial about jquery to javascript conversion from Jeffrey Way on Jan 19th 2012 *Copyright © 2014 Envato* :

http://net.tutsplus.com/tutorials/javascript-ajax/from-jquery-to-javascript-a-reference/

Whether we like it or not, more and more developers are being introduced to the world of JavaScript through jQuery first. In many ways, these newcomers are the lucky ones. They have access to a plethora of new JavaScript APIs, which make the process of DOM traversal (something that many folks depend on jQuery for) considerably easier. Unfortunately, they don’t know about these APIs!

In this article, we’ll take a variety of common jQuery tasks, and convert them to both modern and legacy JavaScript.

I proposed it in a comment to OP, and after his suggestion, i publish it has an answer for everyone to refer to.

Also, Jeffrey Way mentioned about his inspiration witch seems to be a good primer for understanding : http://sharedfil.es/js-48hIfQE4XK.html

Has a teaser, this document comparison of jQuery to javascript :

$(document).ready(function() {
  // code…
});

document.addEventListener("DOMContentLoaded", function() {
  // code…
});

$("a").click(function() {
  // code…
})

[].forEach.call(document.querySelectorAll("a"), function(el) {
  el.addEventListener("click", function() {
    // code…
  });
});

You should take a look.

Usually git bash here can be run only on directories so you have to go up a directory and right click on the previous directory then select git bash here (of course on Windows OS).
Note: context menu inside a directory does not have a git bash here option.

With the use of Google Guava:

import com.google.common.base.Charsets;
import com.google.common.io.Resources;

public String readResource(final String fileName, Charset charset) throws Exception {
        try {
            return Resources.toString(Resources.getResource(fileName), charset);
        } catch (IOException e) {
            throw new IllegalArgumentException(e);
        }
}

Example:

String fixture = this.readResource("filename.txt", Charsets.UTF_8)

Assuming that your branch is called master both here and remotely, and that your remote is called origin you could do:

git reset --hard <commit-hash>
git push -f origin master

However, you should avoid doing this if anyone else is working with your remote repository and has pulled your changes. In that case, it would be better to revert the commits that you don't want, then push as normal.

To answer TJJ: But is it also possible to do this without copying the whole file? So, just to somehow create an additional vmdk-metafile, that references the raw dd-image.

Yes, it's possible. Here's how to use a flat disk image in VirtualBox:

First you create an image with dd in the usual way:

dd bs=512 count=60000 if=/dev/zero of=usbdrv.img

Then you can create a file for VirtualBox that references this image:

VBoxManage internalcommands createrawvmdk -filename "usbdrv.vmdk" -rawdisk "usbdrv.img"

You can use this image in VirtualBox as is, but depending on the guest OS it might not be visible immediately. For example, I experimented on using this method with a Windows guest OS and I had to do the following to give it a drive letter:

• Go to the Control Panel.
• Go to Administrative Tools.
• Go to Computer Management.
• Go to Storage\Disk Management in the left side panel.
• You'll see your disk here. Create a partition on it and format it. Use FAT for small volumes, FAT32 or NTFS for large volumes.

You might want to access your files on Linux. First dismount it from the guest OS to be sure and remove it from the virtual machine. Now we need to create a virtual device that references the partition.

sfdisk -d usbdrv.img

Response:

label: dos
label-id: 0xd367a714
device: usbdrv.img
unit: sectors

usbdrv.img1 : start=          63, size=       48132, type=4

Take note of the start position of the partition: 63. In the command below I used loop4 because it was the first available loop device in my case.

sudo losetup -o $((63*512)) loop4 usbdrv.img
mkdir usbdrv
sudo mount /dev/loop4 usbdrv
ls usbdrv -l

Response:

total 0
-rwxr-xr-x. 1 root root 0 Apr  5 17:13 'Test file.txt'

Yay!

Abstraction is about identifying commonalities and reducing features that you have to work with at different levels of your code.

e.g. I may have a Vehicle class. A Car would derive from a Vehicle, as would a Motorbike. I can ask each Vehicle for the number of wheels, passengers etc. and that info has been abstracted and identified as common from Cars and Motorbikes.

In my code I can often just deal with Vehicles via common methods go(), stop() etc. When I add a new Vehicle type later (e.g. Scooter) the majority of my code would remain oblivious to this fact, and the implementation of Scooter alone worries about Scooter particularities.

Presumably, those columns are integer columns - which will be the reason as the result of the calculation will be of the same type.

e.g. if you do this:

SELECT 1 / 2

you will get 0, which is obviously not the real answer. So, convert the values to e.g. decimal and do the calculation based on that datatype instead.

e.g.

SELECT CAST(1 AS DECIMAL) / 2

gives 0.500000

You can do this using dataset property of the element, using with or without jquery it work... i'm not aware of old browser Note: that when you use dash ('-') sign, you need to use capital case. Eg. a-b => aB

function onContentLoad() {_x000D_
  var item = document.getElementById("id1");_x000D_
  var x = item.dataset.x;_x000D_
  var data = item.dataset.myData;_x000D_
_x000D_
  var resX = document.getElementById("resX");_x000D_
  var resData = document.getElementById("resData");_x000D_
_x000D_
  resX.innerText = x;_x000D_
  resData.innerText = data;_x000D_
_x000D_
  console.log(x);_x000D_
  console.log(data);_x000D_
}

<body onload="onContentLoad()">_x000D_
  <div id="id1" data-x="a" data-my-data="b"></div>_x000D_
_x000D_
  Read 'x':_x000D_
  <label id="resX"></label>_x000D_
  <br/>Read 'my-data':_x000D_
  <label id="resData"></label>_x000D_
</body>

If you are working with url, You might want to check if you "Enable Mod Rewrite"

It's hard to tell what you're going for in that example. exports = is about exporting from external modules, but the code sample you linked is an internal module.

Rule of thumb: If you write module foo { ... }, you're writing an internal module; if you write export something something at top-level in a file, you're writing an external module. It's somewhat rare that you'd actually write export module foo at top-level (since then you'd be double-nesting the name), and it's even rarer that you'd write module foo in a file that had a top-level export (since foo would not be externally visible).

The following things make sense (each scenario delineated by a horizontal rule):

// An internal module named SayHi with an exported function 'foo'
module SayHi {
    export function foo() {
       console.log("Hi");
    }

    export class bar { }
}

// N.B. this line could be in another file that has a
// <reference> tag to the file that has 'module SayHi' in it
SayHi.foo();
var b = new SayHi.bar();

file1.ts

// This *file* is an external module because it has a top-level 'export'
export function foo() {
    console.log('hi');
}

export class bar { }

file2.ts

// This file is also an external module because it has an 'import' declaration
import f1 = module('file1');
f1.foo();
var b = new f1.bar();

file1.ts

// This will only work in 0.9.0+. This file is an external
// module because it has a top-level 'export'
function f() { }
function g() { }
export = { alpha: f, beta: g };

file2.ts

// This file is also an external module because it has an 'import' declaration
import f1 = require('file1');
f1.alpha(); // invokes f
f1.beta(); // invokes g

@Combii I found a way to swap

CMD+1, CMD+2, CMD+3 with CTRL+1, CTRL+2, CTRL+3, ...

In macOS, go to:

Code > Preferences > Keyboard Shortcuts

On that page, click the button on the top right of the page...

and append the configuration below, then save.

[
    {
        "key": "cmd+0",
        "command": "workbench.action.openLastEditorInGroup"
    },
    {
        "key": "cmd+1",
        "command": "workbench.action.openEditorAtIndex1"
    },
    {
        "key": "cmd+2",
        "command": "workbench.action.openEditorAtIndex2"
    },
    {
        "key": "cmd+3",
        "command": "workbench.action.openEditorAtIndex3"
    },
    {
        "key": "cmd+4",
        "command": "workbench.action.openEditorAtIndex4"
    },
    {
        "key": "cmd+5",
        "command": "workbench.action.openEditorAtIndex5"
    },
    {
        "key": "cmd+6",
        "command": "workbench.action.openEditorAtIndex6"
    },
    {
        "key": "cmd+7",
        "command": "workbench.action.openEditorAtIndex7"
    },
    {
        "key": "cmd+8",
        "command": "workbench.action.openEditorAtIndex8"
    },
    {
        "key": "cmd+9",
        "command": "workbench.action.openEditorAtIndex9"
    },
    {
        "key": "ctrl+1",
        "command": "workbench.action.focusFirstEditorGroup"
    },
    {
        "key": "ctrl+2",
        "command": "workbench.action.focusSecondEditorGroup"
    },
    {
        "key": "ctrl+3",
        "command": "workbench.action.focusThirdEditorGroup"
    }
]

You now can use CMD+[1-9] to switch between tabs and CTRL+[1-3] to focus editor groups! Hope this answer is helpful.

here is simple JQuery to do this to make div draggable with in only container :

$("#containerdiv div").draggable( {containment: "#containerdiv ", scroll: false} );

Angular Material 10 now includes a new date range picker.

To use the new date range picker, you can use the mat-date-range-input and mat-date-range-picker components.

Example

HTML

<mat-form-field>
  <mat-label>Enter a date range</mat-label>
  <mat-date-range-input [rangePicker]="picker">
    <input matStartDate matInput placeholder="Start date">
    <input matEndDate matInput placeholder="End date">
  </mat-date-range-input>
  <mat-datepicker-toggle matSuffix [for]="picker"></mat-datepicker-toggle>
  <mat-date-range-picker #picker></mat-date-range-picker>
</mat-form-field>

You can read and learn more about this in their official documentation.

Unfortunately, they still haven't build a timepicker on this release.

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.

As long as your list is initialized with values and that value actually exists in the list, then Contains should return true.

I tried the following:

var list = new List<int> {1,2,3,4,5};
var intVar = 4;
var exists = list.Contains(intVar);

And exists is indeed set to true.

These are automatic variables, like $null, $true, $false etc.

about_Automatic_Variables, see https://technet.microsoft.com/en-us/library/hh847768.aspx?f=255&MSPPError=-2147217396

$NULL
$null is an automatic variable that contains a NULL or empty value. You can use this variable to represent an absent or undefined value in commands and scripts.

Windows PowerShell treats $null as an object with a value, that is, as an explicit placeholder, so you can use $null to represent an empty value in a series of values.

For example, when $null is included in a collection, it is counted as one of the objects.

C:\PS> $a = ".dir", $null, ".pdf"
C:\PS> $a.count
3

If you pipe the $null variable to the ForEach-Object cmdlet, it generates a value for $null, just as it does for the other objects.

PS C:\ps-test> ".dir", $null, ".pdf" | Foreach {"Hello"}
Hello
Hello
Hello

As a result, you cannot use $null to mean "no parameter value." A parameter value of $null overrides the default parameter value.

However, because Windows PowerShell treats the $null variable as a placeholder, you can use it scripts like the following one, which would not work if $null were ignored.

$calendar = @($null, $null, “Meeting”, $null, $null, “Team Lunch”, $null)
$days = Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"
$currentDay = 0

foreach($day in $calendar)
{
    if($day –ne $null)
    {
        "Appointment on $($days[$currentDay]): $day"
    }

    $currentDay++
}

output:

Appointment on Tuesday: Meeting
Appointment on Friday: Team lunch

XCODE 8, Swift 3: You need to add a row: **

"App transport Security Setting"

** in the info.plist inside information Property list.

A simple return statement will 'stop' or return the function; in precise terms, it 'returns' function execution to the point at which the function was called - the function is terminated without further action.

That means you could have a number of places throughout your function where it might return. Like this:

def player():
    # do something here
    check_winner_variable = check_winner()  # check something 
    if check_winner_variable == '1': 
        return
    second_test_variable = second_test()
    if second_test_variable == '1': 
        return
       
    # let the computer do something
    computer()

I find Jack Aidley's suggested answer a useful one.

I wanted to throw out another option. Suppose you have a series with many small numbers, and you want to ensure the axis labels write out the full decimal point (e.g. 5e-05 -> 0.0005), then:

NotFancy <- function(l) {
 l <- format(l, scientific = FALSE)
 parse(text=l)
}

ggplot(data = data.frame(x = 1:100, 
                         y = seq(from=0.00005,to = 0.0000000000001,length.out=100) + runif(n=100,-0.0000005,0.0000005)), 
       aes(x=x, y=y)) +
     geom_point() +
     scale_y_continuous(labels=NotFancy) 

Kompare is fine for diff, but I use dirdiff. Although it looks ugly, dirdiff can do 3-way merge - and you can get everything done inside the tool (both diff and merge).

HTML

<h1> Target Bar Elements </h1>

<div class="foo">Foo Element</div>
<div class="bar">Bar Element</div>
<div class="baz">Baz Element</div>
<div class="bar">Bar Second Element</div>
<div class="jar">Jar Element</div>
<div class="kar">Kar Element</div>
<div class="bar">Bar Third Element</div>

CSS

.bar {background:red;}
.bar~.bar {background:green;}
.bar~.bar~.bar {background:yellow;}

DEMO https://jsfiddle.net/ssuryar/6ka13xve/

import cv2 as cv

im_color = cv.imread("lena.png", cv.IMREAD_COLOR)
im_gray = cv.cvtColor(im_color, cv.COLOR_BGR2GRAY)

At this point you have a color and a gray image. We are dealing with 8-bit, uint8 images here. That means the images can have pixel values in the range of [0, 255] and the values have to be integers.

Let's do a binary thresholding operation. It creates a black and white masked image. The black regions have value 0 and the white regions 255

_, mask = cv.threshold(im_gray, thresh=180, maxval=255, type=cv.THRESH_BINARY)
im_thresh_gray = cv.bitwise_and(im_gray, mask)

The mask can be seen below on the left. The image on it's right is the result of applying bitwise_and operation between the gray image and the mask. What happened is, the spatial locations where the mask had a pixel value zero (black), became pixel value zero in the result image. The locations where the mask had pixel value 255 (white), the resulting image retained it's original gray value.

To apply this mask to our original color image, we need to convert the mask into a 3 channel image as the original color image is a 3 channel image.

mask3 = cv.cvtColor(mask, cv.COLOR_GRAY2BGR)  # 3 channel mask

Then, we can apply this 3 channel mask to our color image using the same bitwise_and function.

im_thresh_color = cv.bitwise_and(im_color, mask3)

mask3 from the code is the image below on the left, and im_thresh_color is on its right.

You can plot the results and see for yourself.

cv.imshow("original image", im_color)
cv.imshow("binary mask", mask)
cv.imshow("3 channel mask", mask3)
cv.imshow("im_thresh_gray", im_thresh_gray)
cv.imshow("im_thresh_color", im_thresh_color)
cv.waitKey(0)

The original image is lenacolor.png that I found here.

Answering my own question.

curl -X GET --basic --user username:password \
     https://www.example.com/mobile/resource

curl -X DELETE --basic --user username:password \
     https://www.example.com/mobile/resource

curl -X PUT --basic --user username:password -d 'param1_name=param1_value' \
     -d 'param2_name=param2_value' https://www.example.com/mobile/resource

POSTing a file and additional parameter

curl -X POST -F 'param_name=@/filepath/filename' \
     -F 'extra_param_name=extra_param_value' --basic --user username:password \
     https://www.example.com/mobile/resource

In C# These ways you can Solve the problem, In UIkit these methods are available.

Label.Font = Label.Font.WithSize(5.0f);
       Or
Label.Font = UIFont.FromName("Copperplate", 10.0f);  
       Or
Label.Font = UIFont.WithSize(5.0f);

You can use ymd from lubridate

lubridate::ymd(v)
#[1] "2008-11-01"

Or anytime::anydate

anytime::anydate(v)
#[1] "2008-11-01"

For fitting y = A + B log x, just fit y against (log x).

>>> x = numpy.array([1, 7, 20, 50, 79])
>>> y = numpy.array([10, 19, 30, 35, 51])
>>> numpy.polyfit(numpy.log(x), y, 1)
array([ 8.46295607,  6.61867463])
# y ˜ 8.46 log(x) + 6.62

For fitting y = Ae^Bx, take the logarithm of both side gives log y = log A + Bx. So fit (log y) against x.

Note that fitting (log y) as if it is linear will emphasize small values of y, causing large deviation for large y. This is because polyfit (linear regression) works by minimizing ?_i (?Y)² = ?_i (Y_i − Y_i)². When Y_i = log y_i, the residues ?Y_i = ?(log y_i) ˜ ?y_i / |y_i|. So even if polyfit makes a very bad decision for large y, the "divide-by-|y|" factor will compensate for it, causing polyfit favors small values.

This could be alleviated by giving each entry a "weight" proportional to y. polyfit supports weighted-least-squares via the w keyword argument.

>>> x = numpy.array([10, 19, 30, 35, 51])
>>> y = numpy.array([1, 7, 20, 50, 79])
>>> numpy.polyfit(x, numpy.log(y), 1)
array([ 0.10502711, -0.40116352])
#    y ˜ exp(-0.401) * exp(0.105 * x) = 0.670 * exp(0.105 * x)
# (^ biased towards small values)
>>> numpy.polyfit(x, numpy.log(y), 1, w=numpy.sqrt(y))
array([ 0.06009446,  1.41648096])
#    y ˜ exp(1.42) * exp(0.0601 * x) = 4.12 * exp(0.0601 * x)
# (^ not so biased)

Note that Excel, LibreOffice and most scientific calculators typically use the unweighted (biased) formula for the exponential regression / trend lines. If you want your results to be compatible with these platforms, do not include the weights even if it provides better results.

Now, if you can use scipy, you could use scipy.optimize.curve_fit to fit any model without transformations.

For y = A + B log x the result is the same as the transformation method:

>>> x = numpy.array([1, 7, 20, 50, 79])
>>> y = numpy.array([10, 19, 30, 35, 51])
>>> scipy.optimize.curve_fit(lambda t,a,b: a+b*numpy.log(t),  x,  y)
(array([ 6.61867467,  8.46295606]), 
 array([[ 28.15948002,  -7.89609542],
        [ -7.89609542,   2.9857172 ]]))
# y ˜ 6.62 + 8.46 log(x)

For y = Ae^Bx, however, we can get a better fit since it computes ?(log y) directly. But we need to provide an initialize guess so curve_fit can reach the desired local minimum.

>>> x = numpy.array([10, 19, 30, 35, 51])
>>> y = numpy.array([1, 7, 20, 50, 79])
>>> scipy.optimize.curve_fit(lambda t,a,b: a*numpy.exp(b*t),  x,  y)
(array([  5.60728326e-21,   9.99993501e-01]),
 array([[  4.14809412e-27,  -1.45078961e-08],
        [ -1.45078961e-08,   5.07411462e+10]]))
# oops, definitely wrong.
>>> scipy.optimize.curve_fit(lambda t,a,b: a*numpy.exp(b*t),  x,  y,  p0=(4, 0.1))
(array([ 4.88003249,  0.05531256]),
 array([[  1.01261314e+01,  -4.31940132e-02],
        [ -4.31940132e-02,   1.91188656e-04]]))
# y ˜ 4.88 exp(0.0553 x). much better.

Thanks.. only one that fixed mine was the command prompt. Devenv is located under VisualStudio 12.0 Directory under common7\IDE if it helps..

The follows is often used:

select field_SQ.nextval from dual;
select field_SQ.currval from DUAL;

However the following is able to change the sequence to what you expected. The 1 can be an integer (negative or positive)

alter sequence field_SQ increment by 1 minvalue 0

You're on the right track with using document.getElementById() as you have done for your first two text boxes. Use something like document.getElementById("textbox3") to retrieve the element. Then you can just set its value property: document.getElementById("textbox3").value = answer;

For the "Your answer is: --", I'd recommend wrapping the "--" in a <span/> (e.g. <span id="answerDisplay">--</span>). Then use document.getElementById("answerDisplay").textContent = answer; to display it.

There is no character encoded for use as a pause symbol, though various characters or combinations of characters may look more or less like a pause symbol, depending on font.

In a discussion in the public Unicode mailing list in 2005, a suggestion was made to use two copies of the U+275A HEAVY VERTICAL BAR character: ??. But the adequacy of the result depends on font; for example, the glyph might have been designed so that the bars are too much apart. – The list discussion explains why a pause symbol had not been encoded, and this has not changed.

Thus, the best option is to use an image. If you need to use the symbol in text, it is best to create it in a suitably large size (say 60 by 60 pixels) and scale it down to text size with CSS (e.g., setting height: 0.8em on the img element).

$ ps -fA | grep python
501 81211 12368   0  10:11PM ttys000    0:03.12  
python -m SimpleHTTPServer

$ kill 81211

It's worked for me. Try this:

double od = Double.parseDouble("1.15");
int oi = (int) od;

Filtering IP Address in Wireshark:

(1)single IP filtering:

ip.addr==X.X.X.X

ip.src==X.X.X.X

ip.dst==X.X.X.X

(2)Multiple IP filtering based on logical conditions:

OR condition:

(ip.src==192.168.2.25)||(ip.dst==192.168.2.25)

AND condition:

(ip.src==192.168.2.25) && (ip.dst==74.125.236.16)

From System Preferences, turn on the "Show Keyboard & Character Viewer in menu bar" setting.

Then, the "Character Viewer" menu will pop up a tool that will let you search for any unicode character (by name) and insert it ? you're all set.

it's in there by default. It's the id field.

Ok, first e.preventDefault(); it's not a Jquery element, it's a method of javascript, now what it's true it's if you add this method you avoid the submit the event, now what you could do it's send the form by ajax something like this

$('#subscription_order_form').submit(function(e){
    $.ajax({
     url: $(this).attr('action'),
     data : $(this).serialize(),
     success : function (data){

      }
   });
    e.preventDefault();
});