clear site data in your browser. and it will be fixed. sometimes when you run proxies, vpns or some other programs this error happens.

I've been programming for 8 years professionally, and since I was 12 as a hobby.

Math is not necessary, logic is. Math is horribly helpful though, to say it's not necessary is like saying that to kill a man, a gun isn't necessary, you can use a knife. Well, it is true, but that gun makes it a lot easier.

There are a couple bare minimums, which you should already meet. You need to know basic algebraic expressions and notation, and the common computer equivalents. For example, you need to know what an exponential is (3 to the 3rd is 27), and the common computer expression is 3^3. The common notations for algebra does change between languages, but many of them use a somewhat unified methodology. Others (looking at you LISP) don't. You also need to know order of operations.

You need to understand algorithmic thought. First this, then this, produces this which is used in this calculation. Chances are you understand this or you don't, and it's a fairly hard hurdle to jump if you don't understand it; I've found that this is something you 'get', and not really something you can learn. Conversely, some people don't 'get' art. They should not become painters. Also, there have been students in CS curriculum who cannot figure out why this does not work: x = z + w; z = 3; y = 5; It's not that they don't understand addition, it's that they aren't grasping the requirement of unambiguous express. If they understand it, the computer should too, right? If you can't see what's wrong with the above three lines, then don't become a programmer.

Lastly, you need to know whatever math is under your domain of programming. Accounting software could stop at basic algebra. If you are programming physics, you'll need to know physics (loosely) and math in 3-dimensional geometry (Euclidean). If you're programming architecture software, you'll need to know trigonometry.

This goes farther then math though; whatever domain you are programming for, you need to soundly understand the basics. If you are programming language analysis software, you'll need to know probability, statistics, grammar theory (multiple languages), etc.

Often times, certain domains need, or can benefit from, knowledge you'd think is unrelated. For example, if you were programming audio software, you actually need to know trigonometry to deal with waveforms.

Magnitude changes things also. If you are sorting a financial data set of 1000 items, it's no big thing. If it was 10 million records, however, you would benefit greatly from knowing vector math actually, and having a deep understanding of sorting at the binary level (how does a system sort alphabetically? How does it know 'a' is less than 'b'?)

You are going to find that as a programmer, your general knowledge base is going to explode, because each project will necessitate more learning outside of the direct sphere of programming. If you are squeamish or lazy about self-learning, and do not like the idea of spending 10+ hours a week doing essentially 'homework', do not become a programmer.

If you like thought exercises, if you like learning, if you can think about abstract things like math without a calculator or design without a sketchpad, if you have broad tastes in life and hobbies, if you are self-critical and can throw away 'favorited' ideas, if you like perfecting things, then become a programmer. Do not base this decision on math, but rather, the ability to think logically and learn. Those are what is important; math is just the by-product.

Just check the bootstrap. CSS and search for the class panel-heading and copy the default code.

Copy the default CSS to your personal CSS but vive it a diference classname like my-panel-header for example.

Edit the css Code from the new clones class created.

Try this:

string baseUrl = Request.Url.Scheme + "://" + Request.Url.Authority + 
    Request.ApplicationPath.TrimEnd('/') + "/";

I don't know, since when this is possible, but you can simply add <font> </font> to your string.xml which will automatically change the color per text. No need to add any additional code such as spannable text etc.

Example

<string name="my_formatted_text">
    <font color="#FF0707">THIS IS RED</font>
    <font color="#0B132B">AND NOW BLUE</font>
</string>

You can check like this

public void checktype() {
    ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    if (activeNetwork != null) { // connected to the internet
        if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI) {
            // connected to wifi
            Toast.makeText(this, activeNetwork.getTypeName(), Toast.LENGTH_SHORT).show();
        } else if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
            // connected to the mobile provider's data plan
            Toast.makeText(this, activeNetwork.getTypeName(), Toast.LENGTH_SHORT).show();
        }
    }
}

For me same error occurred because I renamed the namespace of the Program class.
The "Startup object" field in "Application" tab of the project still referenced the old namespace. Selecting new startup object solved the problem and also removed the obsolete entry from that list.
You may also want to update "Default namespace" field in the same "Application" tab.

This happens when you have installed app with diffrent versions on your mobile/emulator phone.

Simply uninstall existing app will solve the problem

You should look at something like nodemon.

Nodemon will watch the files in the directory in which nodemon was started, and if they change, it will automatically restart your node application.

Example:

nodemon ./server.js localhost 8080

or simply

nodemon server

The name of an array is the address of its first element, so name is a pointer to memory containing the string "siva".

Also you don't need a pointer to display a character; you are just electing to use it directly from the array in this case. You could do this instead:

char c = *name;
printf("%c\n", c);

Run the command below using the HDFS OS user to disable safe mode:

sudo -u hdfs hadoop dfsadmin -safemode leave

function truncate(string, length, delimiter) {
   delimiter = delimiter || "…";
   return string.length > length ? string.substr(0, length) + delimiter : string;
};

var long = "Very long text here and here",
    short = "Short";

truncate(long, 10); // -> "Very long ..."
truncate(long, 10, ">>"); // -> "Very long >>"
truncate(short, 10); // -> "Short"

If you know the target paper size, you can place your content in a DIV with that specific size and add a margin to that DIV to simulate the print margin. Unfortunately, I don't believe you have extra control over the print functionality apart from just show the print dialog box.

A couple of suggestions are provided as answers to this question. I had suggested the technique described in this post, with the relevant code:

+ (UIImage*)imageWithImage:(UIImage*)image 
               scaledToSize:(CGSize)newSize;
{
   UIGraphicsBeginImageContext( newSize );
   [image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
   UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
   UIGraphicsEndImageContext();

   return newImage;
}

As far as storage of the image, the fastest image format to use with the iPhone is PNG, because it has optimizations for that format. However, if you want to store these images as JPEGs, you can take your UIImage and do the following:

NSData *dataForJPEGFile = UIImageJPEGRepresentation(theImage, 0.6);

This creates an NSData instance containing the raw bytes for a JPEG image at a 60% quality setting. The contents of that NSData instance can then be written to disk or cached in memory.

multi-map

This is really helpful if you want to create a multimap without resorting to the Google Guava library for its implementation of MultiMap.

For example, suppose you want to store a list of students who enrolled for a particular subject.

The normal solution for this using JDK library is:

Map<String,List<String>> studentListSubjectWise = new TreeMap<>();
List<String>lis = studentListSubjectWise.get("a");
if(lis == null) {
    lis = new ArrayList<>();
}
lis.add("John");

//continue....

Since it have some boilerplate code, people tend to use Guava Mutltimap.

Using Map.computeIfAbsent, we can write in a single line without guava Multimap as follows.

studentListSubjectWise.computeIfAbsent("a", (x -> new ArrayList<>())).add("John");

Stuart Marks & Brian Goetz did a good talk about this https://www.youtube.com/watch?v=9uTVXxJjuco

Easy method is try os.system:

import os
text = 'this is text'
os.system("echo %s | grep 't*'" % text)

Event bubbling and capturing are two ways of event propagation in the HTML DOM API, when an event occurs in an element inside another element, and both elements have registered a handle for that event. The event propagation mode determines in which order the elements receive the event.

With bubbling, the event is first captured and handled by the innermost element and then propagated to outer elements.

With capturing, the event is first captured by the outermost element and propagated to the inner elements.

Capturing is also called "trickling", which helps remember the propagation order:

trickle down, bubble up

Back in the old days, Netscape advocated event capturing, while Microsoft promoted event bubbling. Both are part of the W3C Document Object Model Events standard (2000).

IE < 9 uses only event bubbling, whereas IE9+ and all major browsers support both. On the other hand, the performance of event bubbling may be slightly lower for complex DOMs.

We can use the addEventListener(type, listener, useCapture) to register event handlers for in either bubbling (default) or capturing mode. To use the capturing model pass the third argument as true.

Example

<div>
    <ul>
        <li></li>
    </ul>
</div>

In the structure above, assume that a click event occurred in the li element.

In capturing model, the event will be handled by the div first (click event handlers in the div will fire first), then in the ul, then at the last in the target element, li.

In the bubbling model, the opposite will happen: the event will be first handled by the li, then by the ul, and at last by the div element.

For more information, see

• Event Order on QuirksMode
• addEventListener on MDN
• Events Advanced on QuirksMode

In the example below, if you click on any of the highlighted elements, you can see that the capturing phase of the event propagation flow occurs first, followed by the bubbling phase.

var logElement = document.getElementById('log');_x000D_
_x000D_
function log(msg) {_x000D_
    logElement.innerHTML += ('<p>' + msg + '</p>');_x000D_
}_x000D_
_x000D_
function capture() {_x000D_
    log('capture: ' + this.firstChild.nodeValue.trim());_x000D_
}_x000D_
_x000D_
function bubble() {_x000D_
    log('bubble: ' + this.firstChild.nodeValue.trim());_x000D_
}_x000D_
_x000D_
function clearOutput() {_x000D_
    logElement.innerHTML = "";_x000D_
}_x000D_
_x000D_
var divs = document.getElementsByTagName('div');_x000D_
for (var i = 0; i < divs.length; i++) {_x000D_
    divs[i].addEventListener('click', capture, true);_x000D_
    divs[i].addEventListener('click', bubble, false);_x000D_
}_x000D_
var clearButton = document.getElementById('clear');_x000D_
clearButton.addEventListener('click', clearOutput);

p {_x000D_
    line-height: 0;_x000D_
}_x000D_
_x000D_
div {_x000D_
    display:inline-block;_x000D_
    padding: 5px;_x000D_
_x000D_
    background: #fff;_x000D_
    border: 1px solid #aaa;_x000D_
    cursor: pointer;_x000D_
}_x000D_
_x000D_
div:hover {_x000D_
    border: 1px solid #faa;_x000D_
    background: #fdd;_x000D_
}

<div>1_x000D_
    <div>2_x000D_
        <div>3_x000D_
            <div>4_x000D_
                <div>5</div>_x000D_
            </div>_x000D_
        </div>_x000D_
    </div>_x000D_
</div>_x000D_
<button id="clear">clear output</button>_x000D_
<section id="log"></section>

Another example at JSFiddle.

It depends if you consider if a subclass of a given class is equals to its parent.

class LastName
{
(...)
}


class FamilyName
extends LastName
{
(..)
}

here I would use 'instanceof', because I want a LastName to be compared to FamilyName

class Organism
{
}

class Gorilla extends Organism
{
}

here I would use 'getClass', because the class already says that the two instances are not equivalent.

I know the answer has already been provided. But I just wanted to elaborate with regards to doing this in a Blazor app (razor)...

You will need to inject IJSRuntime, in order to perform JSInterop (running javascript functions from C#)

IN YOUR RAZOR PAGE:

@inject IJSRuntime JSRuntime

Once you have that injected, create a button with a click event that calls a C# method:

<MatFAB Icon="@MatIconNames.Print" OnClick="@(async () => await print())"></MatFAB>

(or something more simple if you don't use MatBlazor)

<button @onclick="@(async () => await print())">PRINT</button>

For the C# method:

public async Task print()
{
    await JSRuntime.InvokeVoidAsync("printDocument");
}

NOW IN YOUR index.html:

<script>
    function printDocument() {
        window.print();
    }
</script>

Something to note, the reason the onclick events are asynchronous is because IJSRuntime awaits it's calls such as InvokeVoidAsync

PS: If you wanted to message box in asp net core for instance:

await JSRuntime.InvokeAsync<string>("alert", "Hello user, this is the message box");

To have a confirm message box:

bool question = await JSRuntime.InvokeAsync<bool>("confirm", "Are you sure you want to do this?");
    if(question == true)
    {
        //user clicked yes
    }
    else
    {
        //user clicked no
    }

Hope this helps :)

I had this same problem; I had a master sheet which was a summary of information on other worksheets in my workbook.

If you just want to filter/sort in a worksheet where you have your data stored, and then return it to its original state (no matter what you are filtering/sorting by) just make your first column a Line Item Number.

After your initial filter/sort you can then just resort by the “Line Item Number” to return everything back to normal. NOTE: This only works if you always add new rows to the end of the list in sequence.

You're thinking too complicated. It's actually just $('#'+openaddress).

If you are working in XAMPP and your query of drop database doesn't work then you can go to the operations tag where you find the column (drop the database(drop)), click that button and your database will be deleted.

Use the Linux Command Line

Use the command line, as described in this related question: How do I check if my SSL Certificate is SHA1 or SHA2 on the commandline.

Command

Here's the command. Replace www.yoursite.com:443 to fit your needs. Default SSL port is 443:

openssl s_client -connect www.yoursite.com:443 < /dev/null 2>/dev/null \
    | openssl x509 -text -in /dev/stdin | grep "Signature Algorithm"

Results

This should return something like this for the sha1:

Signature Algorithm: sha1WithRSAEncryption

or this for the newer version:

Signature Algorithm: sha256WithRSAEncryption

References

The article Why Google is Hurrying the Web to Kill SHA-1 describes exactly what you would expect and has a pretty graphic, too.

    function ArrayToObject( arr ) {
    var obj = {};
    for (var i = 0; i < arr.length; ++i){
        var name = arr[i].name;
        var value = arr[i].value;
        obj[name] = arr[i].value;
    }
    return obj;
    }

      var form_data = $('#my_form').serializeArray();
            form_data = ArrayToObject( form_data );
            form_data.action = event.target.id;
            form_data.target = event.target.dataset.event;
            console.log( form_data );
            $.post("/api/v1/control/", form_data, function( response ){
                console.log(response);
            }).done(function( response ) {
                $('#message_box').html('SUCCESS');
            })
            .fail(function(  ) { $('#message_box').html('FAIL'); })
            .always(function(  ) { /*$('#message_box').html('SUCCESS');*/ });

Try this. It works with me. Hope you too!

List<YOUR_OBJECT> testList = new ArrayList<>();_x000D_
testList.add(test1);_x000D_
_x000D_
Gson gson = new Gson();_x000D_
_x000D_
String json = gson.toJson(testList);_x000D_
_x000D_
Type type = new TypeToken<ArrayList<YOUR_OBJECT>>(){}.getType();_x000D_
_x000D_
ArrayList<YOUR_OBJECT> array = gson.fromJson(json, type);

I have worked extensively in Excel and have found the following 3 points very useful

Find if there are cells which apparently do not hold any data but Excel considers them to have data

You can find this by using the following property on a sheet

ActiveSheet.UsedRange.Rows.Count
ActiveSheet.UsedRange.Columns.Count

If this range is more than the cells on which you have data, delete the rest of the rows/columns

You will be surprised to see the amount of space it can free

Convert files to .xlsb format

XLSM format is to make Excel compliant with Open XML, but there are very few instances when we actually use the XML format of Excel. This reduces size by almost 50% if not more

Optimum way of storing information

For example if you have to save the stock price for around 10 years, and you need to save Open, High, Low, Close for a stock, this would result in (252*10) * (4) cells being used

Instead, of using separate columns for Open,High,Low,Close save them in a single column with a field separator Open:High:Low:Close

You can easily write a function to extract info from the single column whenever you want to, but it will free up almost 2/3rd space that you are currently taking up

try {
    Intent smsIntent = new Intent(Intent.ACTION_VIEW);
    smsIntent.setData(Uri.parse("smsto:" + Uri.encode(number)));
    smsIntent.putExtra("address", number);
    smsIntent.putExtra("sms_body", message);

    PackageManager pm = activity.getPackageManager();
    List<ResolveInfo> resInfo = pm.queryIntentActivities(smsIntent, 0);

    for (int i = 0; i < resInfo.size(); i++) {
        ResolveInfo ri = resInfo.get(i);
        String packageName = ri.activityInfo.packageName;

        if (packageName.contains("sms")) {
            //Log.d("TAG", packageName + " : " + ri.activityInfo.name);
            smsIntent.setComponent(new ComponentName(packageName, ri.activityInfo.name));
        }
    }
    activity.startActivity(smsIntent);
} catch (Exception e) {
    // Handle Error
}

Best way of doing this.

http://www.cplusplus.com/reference/std/iterator/ has a handy chart that details the specs of § 24.2.2 of the C++11 standard. Basically, the iterators have tags that describe the valid operations, and the tags have a hierarchy. Below is purely symbolic, these classes don't actually exist as such.

iterator {
    iterator(const iterator&);
    ~iterator();
    iterator& operator=(const iterator&);
    iterator& operator++(); //prefix increment
    reference operator*() const;
    friend void swap(iterator& lhs, iterator& rhs); //C++11 I think
};

input_iterator : public virtual iterator {
    iterator operator++(int); //postfix increment
    value_type operator*() const;
    pointer operator->() const;
    friend bool operator==(const iterator&, const iterator&);
    friend bool operator!=(const iterator&, const iterator&); 
};
//once an input iterator has been dereferenced, it is 
//undefined to dereference one before that.

output_iterator : public virtual iterator {
    reference operator*() const;
    iterator operator++(int); //postfix increment
};
//dereferences may only be on the left side of an assignment
//once an output iterator has been dereferenced, it is 
//undefined to dereference one before that.

forward_iterator : input_iterator, output_iterator {
    forward_iterator();
};
//multiple passes allowed

bidirectional_iterator : forward_iterator {
    iterator& operator--(); //prefix decrement
    iterator operator--(int); //postfix decrement
};

random_access_iterator : bidirectional_iterator {
    friend bool operator<(const iterator&, const iterator&);
    friend bool operator>(const iterator&, const iterator&);
    friend bool operator<=(const iterator&, const iterator&);
    friend bool operator>=(const iterator&, const iterator&);

    iterator& operator+=(size_type);
    friend iterator operator+(const iterator&, size_type);
    friend iterator operator+(size_type, const iterator&);
    iterator& operator-=(size_type);  
    friend iterator operator-(const iterator&, size_type);
    friend difference_type operator-(iterator, iterator);

    reference operator[](size_type) const;
};

contiguous_iterator : random_access_iterator { //C++17
}; //elements are stored contiguously in memory.

You can either specialize std::iterator_traits<youriterator>, or put the same typedefs in the iterator itself, or inherit from std::iterator (which has these typedefs). I prefer the second option, to avoid changing things in the std namespace, and for readability, but most people inherit from std::iterator.

struct std::iterator_traits<youriterator> {        
    typedef ???? difference_type; //almost always ptrdiff_t
    typedef ???? value_type; //almost always T
    typedef ???? reference; //almost always T& or const T&
    typedef ???? pointer; //almost always T* or const T*
    typedef ???? iterator_category;  //usually std::forward_iterator_tag or similar
};

Note the iterator_category should be one of std::input_iterator_tag, std::output_iterator_tag, std::forward_iterator_tag, std::bidirectional_iterator_tag, or std::random_access_iterator_tag, depending on which requirements your iterator satisfies. Depending on your iterator, you may choose to specialize std::next, std::prev, std::advance, and std::distance as well, but this is rarely needed. In extremely rare cases you may wish to specialize std::begin and std::end.

Your container should probably also have a const_iterator, which is a (possibly mutable) iterator to constant data that is similar to your iterator except it should be implicitly constructable from a iterator and users should be unable to modify the data. It is common for its internal pointer to be a pointer to non-constant data, and have iterator inherit from const_iterator so as to minimize code duplication.

My post at Writing your own STL Container has a more complete container/iterator prototype.

Try using the net use command in your script to map the share first, because you can provide it credentials. Then, your copy command should use those credentials.

net use \\<network-location>\<some-share> password /USER:username

Don't leave a trailing \ at the end of the

This solution worked for me:

import pandas as pd
data = pd.read_csv("training.csv", encoding = 'unicode_escape')

variable=$(ps -ef | awk '/[p]ort 10/ {print $12}')

The [p] is a neat trick to remove the search from showing from ps

@Jeremy If you post the output of ps -ef | grep "port 10", and what you need from the line, it would be more easy to help you getting correct syntax

To mark a lambda async, simply prepend async before its argument list:

// Add a command to delete the current Group
contextMenu.Commands.Add(new UICommand("Delete this Group", async (contextMenuCmd) =>
{
    SQLiteUtils slu = new SQLiteUtils();
    await slu.DeleteGroupAsync(groupName);
}));

Another good resource is http://www.javacamp.org/javavscsharp/ This site enumerates many examples that ilustrate almost all the differences between these two programming languages.

About the Attributes, Java has Annotations, that work almost the same way.

I assume that you haven't set the TableName property of the DataTable, for example via constructor:

var tbl = new DataTable("dtImage");

If you don't provide a name, it will be automatically created with "Table1", the next table will get "Table2" and so on.

Then the solution would be to provide the TableName and then check with Contains(nameOfTable).

To clarify it: You'll get an ArgumentException if that DataTable already belongs to the DataSet (the same reference). You'll get a DuplicateNameException if there's already a DataTable in the DataSet with the same name(not case-sensitive).

http://msdn.microsoft.com/en-us/library/as4zy2kc.aspx

Installing the Microsoft Visual C++ Redistributable for Visual Studio 2015, 2017 and 2019 worked for me with a similar problem, and helped with another (slightly different) driver issue.

Put http.request.method == "POST" in the display filter of wireshark to only show POST requests. Click on the packet, then expand the Hypertext Transfer Protocol field. The POST data will be right there on top.

There's the rlist package (http://cran.r-project.org/web/packages/rlist/index.html) to deal with various kinds of list operations.

Example (http://cran.r-project.org/web/packages/rlist/vignettes/Filtering.html):

library(rlist)
devs <- 
  list(
    p1=list(name="Ken",age=24,
      interest=c("reading","music","movies"),
      lang=list(r=2,csharp=4,python=3)),
    p2=list(name="James",age=25,
      interest=c("sports","music"),
      lang=list(r=3,java=2,cpp=5)),
    p3=list(name="Penny",age=24,
      interest=c("movies","reading"),
      lang=list(r=1,cpp=4,python=2)))

list.remove(devs, c("p1","p2"))

Results in:

# $p3
# $p3$name
# [1] "Penny"
# 
# $p3$age
# [1] 24
# 
# $p3$interest
# [1] "movies"  "reading"
# 
# $p3$lang
# $p3$lang$r
# [1] 1
# 
# $p3$lang$cpp
# [1] 4
# 
# $p3$lang$python
# [1] 2

This is not possible in Lombok. Although it would be a really nice feature, it requires resolution to find the constructors of the super class. The super class is only known by name the moment Lombok gets invoked. Using the import statements and the classpath to find the actual class is not trivial. And during compilation you cannot just use reflection to get a list of constructors.

It is not entirely impossible but the results using resolution in val and @ExtensionMethod have taught us that is it hard and error-prone.

Disclosure: I am a Lombok developer.

Another way to do this is described below.

First, turn on iterative calculations on under File - Options - Formulas - Enable Iterative Calculation. Then set maximum iterations to 1000.

After doing this, use the following formula.

=If(D55="","",IF(C55="",NOW(),C55))

Once anything is typed into cell D55 (for this example) then C55 populates today's date and/or time depending on the cell format. This date/time will not change again even if new data is entered into cell C55 so it shows the date/time that the data was entered originally.

This is a circular reference formula so you will get a warning about it every time you open the workbook. Regardless, the formula works and is easy to use anywhere you would like in the worksheet.

If you use internationalization (i18n), and after switch to another language, something like ?locale=fror ?fr might be added at the end of the url. But when you go to another page on click event, translation switch wont be stable.

For this kind of cases a DOM click event handler function must be produced to handle all the a.href attributes by storing the switch state as a variable and add it to all a tags’ tail.

I created a folder named a in /home/prasanth and copied your code to a file named A.java. I compiled from /home/prasanth as javac a/A.java and run javac a.A. I got output as

a!

You use RAISE_APPLICATION_ERROR in order to create an Oracle style exception/error that is specific to your code/needs. Good use of these help to produce code that is clearer, more maintainable, and easier to debug.

For example, if I have an application calling a stored procedure that adds a user and that user already exists, you'll usually get back an error like:

ORA-00001: unique constraint (USERS.PK_USER_KEY) violated

Obviously this error and associated message are not unique to the task you were trying to do. Creating your own Oracle application errors allow you to be clearer on the intent of the action and the cause of the issue.

raise_application_error(-20101, 'User ' || in_user || ' already exists!');

Now your application code can write an exception handler in order to process this specific error condition. Think of it as a way to make Oracle communicate error conditions that your application expects in a "language" (for lack of a better term) that you have defined and is more meaningful to your application's problem domain.

Note that user defined errors must be in the range between -20000 and -20999.

The following link provides lots of good information on this topic and Oracle exceptions in general.

I asked the same question myself over here, and just posted an answer that I recently found. Short answer is: inject a SecurityContext, and refer to SecurityContextHolder only in your Spring config to obtain the SecurityContext

You should be able to use clientHeight instead of checking for the display attribute, since a parent could be hiding this element:

function setFocus() {
    var forms = document.forms || [];
        for (var i = 0; i < forms.length; i++) {
            for (var j = 0; j < forms[i].length; j++) {
            var widget = forms[i][j];
                if ((widget && widget.domNode && widget.domNode.clientHeight > 0) && typeof widget.focus === "function")
                 && (typeof widget.disabled === "undefined" || widget.disabled === false)
                 && (typeof widget.readOnly === "undefined" || widget.readOnly === false)) {
                        widget.focus();
                        break;
                }
            }
        }
    }   
}

Adding my 2 cents .If you are using scala and sbt and scala-logging as dependency ;then this can happen because scala-logging's earlier version had the name scala-logging-api.So;essentially the dependency resolutions do not happen because of different names leading to runtime errors while launching the scala application.

one working but not very efficient way is to add a rule to the document with the new content and reference it with a class. depending on what is needed the class might need an unique id for each value in content.

$("<style type='text/css'>span.id-after:after{content:bar;}</style>").appendTo($("head"));
$('span').addClass('id-after');

If you serialize the object that you have, you can do something like this by using "System.Xml.Serialization.XmlAttributeAttribute" on every property that you want to be specified as an attribute in your model, which in my opinion is a lot easier:

[System.Xml.Serialization.XmlTypeAttribute(AnonymousType = true)]
public class UserNode
{
    [System.Xml.Serialization.XmlAttributeAttribute()]
    public string userName { get; set; }

    [System.Xml.Serialization.XmlAttributeAttribute()]
    public string passWord { get; set; }

    public int Age { get; set; }
    public string Name { get; set; }         
 }

 public class LoginNode 
 {
    public UserNode id { get; set; }
 }

Then you just serialize to XML an instance of LoginNode called "Login", and that's it!

Here you have a few examples to serialize and object to XML, but I would suggest to create an extension method in order to be reusable for other objects.

Since this is a question you come along on google using jquery tagname first child as a query I'll post another example:

<div><p>Some text, whatever</p></div>

$('div').children(':first-child').get(0).tagName); // ...and not $('div:first-child')[...]

The jquery result is an (uppercase) tagname: P

Find: value="([\d]+|[\d])"

Replace: \1

It will really return you

4
403
200
201
116
15

js:

a='value="4"\nvalue="403"\nvalue="200"\nvalue="201"\nvalue="116"\nvalue="15"';
a = a.replace(/value="([\d]+|[\d])"/g, '$1');
console.log(a);

Noticing that user 42-'s perfect approach {
* "do while" = "repeat until not"
* The code equivalence:

do while (condition) # in other language
..statements..
endo

repeat{ # in R
  ..statements..
  if(! condition){ break } # Negation is crucial here!
}

} did not receive enough attention from the others, I'll emphasize and bring forward his approach via a concrete example. If one does not negate the condition in do-while (via ! or by taking negation), then distorted situations (1. value persistence 2. infinite loop) exist depending on the course of the code.

In Gauss:

proc(0)=printvalues(y);
DO WHILE y < 5;    
y+1;
 y=y+1;
ENDO;
ENDP;
printvalues(0); @ run selected code via F4 to get the following @
       1.0000000 
       2.0000000 
       3.0000000 
       4.0000000 
       5.0000000 

In R:

printvalues <- function(y) {
repeat {
 y=y+1;
print(y)
if (! (y < 5) ) {break}   # Negation is crucial here!
}
}
printvalues(0)
# [1] 1
# [1] 2
# [1] 3
# [1] 4
# [1] 5

I still insist that without the negation of the condition in do-while, Salcedo's answer is wrong. One can check this via removing negation symbol in the above code.

One thing to keep in mind here is the MS Access product is much more than just the raw database engine. It provides a full application development platform, including form and menu designer, client application language and environment (VBA), and report designer. When you take all those things together, MS Access really has no peer.

But for the scope of this question, we're concerned with the raw database engine. With that in mind:

SQLlite,
Firebird,
VistaDB (not free),
SQL Server Compact Edition (not Express)
and now SQL Server LocalDB
all come to mind.

Another thought: while the original question does ask about desktop databases, its likely some people will land here looking for a database to use with a web site. It's important to remember that these are all in-process databases, and as such are rarely if ever appropriate for use on the web. If you want to build a web site, where it's common to need to support significant concurrent access, you generally want a database server engine, like MS SQL, Postgresql, MySQL, Oracle, or their brethren. At the same time, those server engines are rarely if ever appropriate for a single-user desktop application.

About the progressbar control in a userform, it won't show any progress if you don't use the repaint event. You have to code this event inside the looping (and obviously increment the progressbar value).

Example of use:

userFormName.repaint

I'm lately here. But somethings I just known that might help you a bit.

If you are using Java, there is nothing much to change. But for kotlin developers, here is some following snippet I think that can make you a basement to run on:

• Parent fragment:

inline fun <reified T : SampleFragment> newInstance(text: String): T {
    return T::class.java.newInstance().apply {
        arguments = Bundle().also { it.putString("key_text_arg", text) }
    }
}

• Normal call

val f: SampleFragment = SampleFragment.newInstance("ABC")
// or val f = SampleFragment.newInstance<SampleFragment>("ABC")

• You can extend the parent init operation in child fragment class by:

fun newInstance(): ChildSampleFragment {
    val child = UserProfileFragment.newInstance<ChildSampleFragment>("XYZ")
    // Do anything with the current initialized args bundle here
    // with child.arguments = ....
    return child
}

Happy coding.

Check the NPM docs for install

With the --production flag (or when the NODE_ENV environment variable is set to production), npm will not install modules listed in devDependencies."

The --only={prod[uction]|dev[elopment]} argument will cause either only devDependencies or only non-devDependencies to be installed regardless of the NODE_ENV."

Have you tried

npm install --only=dev

If you are worried that your package.json might be incorrect, best thing to do is this. Create a new folder, and run:

npm init --yes

Then:

npm install --save-dev brunch@^2.0.4
npm install --save-dev cssnano-brunch@^1.1.5
npm install --save-dev javascript-brunch@^1.8.0
npm install --save-dev sass-brunch@^1.9.2
npm install --save-dev uglify-js-brunch@^1.7.8
npm install jquery@^2.1.4 --save

And you should be good to go! Otherwise, will keep posting other options.

Check your npm configuration:

npm config list

npm gets its config settings from the command line, environment variables, and npmrc files. So check environment variables, and the npmrc file.

Still failing?

Ok, create a new folder, ideally somewhere else on your filesystem. ie. not in same folder hierarchy. For instance, C:\myNewFolder - the closer to the base C: drive the better.

Then run:

npm init --yes

Now run:

npm install underscore --save

and finally:

npm install mocha --save-dev

Does everything work as expected?

What I am trying to do is understand whether your problem is global, or something local to the previous folder and dependencies.

Hi this is odd way but try it once

1. Read the file content into a string
2. print the string and check whether you are getting proper XML or not
3. you can use XMLDocument.LoadXML(xmlstring)

I try with your code and same XML without adding any XML declaration it works for me

XmlDocument doc = new XmlDocument();
        doc.Load(@"H:\WorkSpace\C#\TestDemos\TestDemos\XMLFile1.xml");
        XmlNodeList nodes = doc.GetElementsByTagName("Product");
        XmlNode node = null;
        foreach (XmlNode n in nodes)
        {
            Console.WriteLine("HI");
        }

Its working perfectly fine

I'm using HttpClient 4.5.3, using CloseableHttpResponse#close worked for me.

    CloseableHttpResponse response = client.execute(request);

    try {
        HttpEntity entity = response.getEntity();
        String body = EntityUtils.toString(entity);
        checkResult(body);
        EntityUtils.consume(entity);
    } finally {
        response.close();
    }

With Java7 and beyond:

try (CloseableHttpResponse response = client.execute(request)) {
   ...
}

Have a look at the respective sitepoint reference pages for background-image and URIs

1. It does not have to be in quotes but can use them if you like. (I think IE5/Mac does not support single quotes).
2. Both relative and absolute is possible; a relative path is relative to the path of the css file.

When you use a code like this:

using (var rsa = new RSACryptoServiceProvider(1024))
{
   // Do something with the key...
   // Encrypt, export, etc.
}

.NET (actually Windows) stores your key in a persistent key container forever. The container is randomly generated by .NET

This means:

1. Any random RSA/DSA key you have EVER generated for the purpose of protecting data, creating custom X.509 certificate, etc. may have been exposed without your awareness in the Windows file system. Accessible by anyone who has access to your account.

2. Your disk is being slowly filled with data. Normally not a big concern but it depends on your application (e.g. it might generates hundreds of keys every minute).

To resolve these issues:

using (var rsa = new RSACryptoServiceProvider(1024))
{
   try
   {
      // Do something with the key...
      // Encrypt, export, etc.
   }
   finally
   {
      rsa.PersistKeyInCsp = false;
   }
}

ALWAYS

Here is another nice and easy solution:

$maxDim = 800;
$file_name = $_FILES['myFile']['tmp_name'];
list($width, $height, $type, $attr) = getimagesize( $file_name );
if ( $width > $maxDim || $height > $maxDim ) {
    $target_filename = $file_name;
    $ratio = $width/$height;
    if( $ratio > 1) {
        $new_width = $maxDim;
        $new_height = $maxDim/$ratio;
    } else {
        $new_width = $maxDim*$ratio;
        $new_height = $maxDim;
    }
    $src = imagecreatefromstring( file_get_contents( $file_name ) );
    $dst = imagecreatetruecolor( $new_width, $new_height );
    imagecopyresampled( $dst, $src, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
    imagedestroy( $src );
    imagepng( $dst, $target_filename ); // adjust format as needed
    imagedestroy( $dst );
}

Reference: PHP resize image proportionally with max width or weight

Edit: Cleaned up and simplified the code a bit. Thanks @jan-mirus for your comment.

Simplest solution is to just make the left div width equal 100% - the width of the right div plus any margin between them.

<div class="cont">
  <div class="search">
    Big Logo Text
  </div>
  <nav>
    <ul class="navbar">
      <li><a href="#1">NavLink1</a></li>
      <li><a href="#2">NavLink2</a></li>
      <li><a href="#3">NavLink3</a></li>
      <li><a href="#4">NavLink4</a></li>
      <li><a href="#5">NavLink5</a></li>
    </ul>
  </nav>
</div>

.cont{
  display: inline-grid;
  grid-template-columns: 160px 10px calc(100% - 170px);
  grid-template-rows: auto;
  grid-template-areas: "search .  navigation";
  width: 100%;
  height: auto;
  text-align: center;
}

.search {
  grid-area: search;
  height: 90px;
  background-color: #00FF00;
  line-height: 80px;
  font-size: 1.4rem;
  font-weight: 600;
}
nav {
  grid-area: navigation;
  height: 90px;
  background-color: #A53030;
}

.navbar{
  display: flex;
  height: 30px;
  width: 100%;
  padding: 0%;
  list-style-type: none;
  flex-flow: row wrap;
  flex: 0 1 auto;
  justify-content: space-between;
  align-content: flex-start;
  align-items: flex-start;
}

.navbar a{
    outline: 0;
    text-decoration: none;
}

https://codepen.io/tamjk/pen/dybqKBN

Kindly take advantage of the Task Manager provided by your OS for a quick and easy solution. Below is the screengrab from/for Windows 10. Right-click on the highlighted process and select stop. Select start, if already stopped.

Please Note: Internally the commands are doing the same thing which you have to do manually using a GUI (Task Manager), provided by Windows/your OS. Though, this approach to be used for study/practice purpose to get started and you won't be blocked due to this.

I had same problem (I'm from the Czech Republic). I have an English installation of Windows, and I have to work with files on a shared drive. Paths to the files include Czech-specific characters.

The solution that works for me is:

In the batch file, change the charset page

My batch file:

chcp 1250
copy "O:\VEREJNÉ\ŽŽŽŽŽŽ\Ž.xls" c:\temp

The batch file has to be saved in CP 1250.

Note that the console will not show characters correctly, but it will understand them...

import json

json_data = json.dumps({
  "result":[
    {
      "run":[
        {
          "action":"stop"
        },
        {
          "action":"start"
        },
        {
          "action":"start"
        }
      ],
      "find": "true"
    }
  ]
})

item_dict = json.loads(json_data)
print len(item_dict['result'][0]['run'])

Convert it in dict.

You can do

display/i $pc

and every time GDB stops, it will display the disassembly of the next instruction.

GDB-7.0 also supports set disassemble-next-line on, which will disassemble the entire next line, and give you more of the disassembly context.

You can pass in the data to be used in the mouseover like this- the mouseover event uses a function with your previously entered data as an argument (and the index as a second argument) so you don't need to use enter() a second time.

vis.selectAll("circle")
.data(datafiltered).enter().append("svg:circle")
.attr("cx", function(d) { return x(d.x);})
.attr("cy", function(d) {return y(d.y)})
.attr("fill", "red").attr("r", 15)
.on("mouseover", function(d,i) {
    d3.select(this).append("text")
        .text( d.x)
        .attr("x", x(d.x))
        .attr("y", y(d.y)); 
});

Something like this?

div {_x000D_
  border: 1px solid #202020;_x000D_
  margin-top: 25px;_x000D_
  margin-left: 25px;_x000D_
  width: 158px;_x000D_
  height: 158px;_x000D_
  padding-top: 25px;_x000D_
  -webkit-box-shadow: 0px -4px 3px rgba(50, 50, 50, 0.75);_x000D_
  -moz-box-shadow: 0px -4px 3px rgba(50, 50, 50, 0.75);_x000D_
  box-shadow: 0px -4px 3px rgba(50, 50, 50, 0.75);_x000D_
}

<div></div>

I submit that it is better to leave your data stacked as it is:

df = pandas.DataFrame(data, columns=['R_Number', 'C_Number', 'Avg', 'Std'])

# Possibly also this if these can always be the indexes:
# df = df.set_index(['R_Number', 'C_Number'])

Then it's a bit more intuitive to say

df.set_index(['R_Number', 'C_Number']).Avg.unstack(level=1)

This way it is implicit that you're seeking to reshape the averages, or the standard deviations. Whereas, just using pivot, it's purely based on column convention as to what semantic entity it is that you are reshaping.

All inputs should be replaced with custom directive that reads a single global variable to toggle readonly status.

// template
<your-input [readonly]="!childmessage"></your-input>

// component value
childmessage = false;

you can use map function

 toArray= fromArray.map(x => x);

You can use the UIScrollView's setContentOffset:animated: function to scroll to any part of the content view. Here's some code that would scroll to the bottom, assuming your scrollView is self.scrollView:

Objective-C:

CGPoint bottomOffset = CGPointMake(0, self.scrollView.contentSize.height - self.scrollView.bounds.size.height + self.scrollView.contentInset.bottom);
[self.scrollView setContentOffset:bottomOffset animated:YES];

Swift:

let bottomOffset = CGPoint(x: 0, y: scrollView.contentSize.height - scrollView.bounds.height + scrollView.contentInset.bottom)
scrollView.setContentOffset(bottomOffset, animated: true)

Hope that helps!

I believe that C++ is the language that you are looking for. The majority of game development is in C++ because it is a multi-paradigm language (OOP, meta-programming, etc.) and because it allows memory management. What makes C++ even better is that it can be used to develop on a multitude of platforms whereas C# cannot do so on such a big scale.

Many will say that with C# you will not have to worry about memory allocation and this is true at a certain price. You will have the burden of the .NET framework on your shoulders and will slowly see the limitations of C# in the way certain tasks must be done.

Probably you have read from some answers that C++ is a hard programming language. This is mostly true, but perhaps you haven't heard about C++0x. Some features found in C# such as garbage collection will become available (optional for you to use) with C++0x. Also, multi-threading will finally be supported by the language with this revision of the C++ standard.

I would recommend that you buy a few C++ books as well as C++ DirectX/OpenGL books.

you can call window.open without browser blocking only if user does directly some action. Browser send some flag and determine that window opened by user action.

So, you can try this scenario:

1. var myWindow = window.open('')
2. draw any loading message in this window
3. when request done, just call myWindow.location = 'http://google.com'

In windows using "Windows PowerShell" I used the command mentioned below to achieve this

Get-Content .\file.txt | Group-Object | Select Name, Count

Also we can use the where-object Cmdlet to filter the result

Get-Content .\file.txt | Group-Object | Where-Object { $_.Count -gt 1 } | Select Name, Count

  default LocalDateTime getDateFromLong(long timestamp) {
    try {
        return LocalDateTime.ofInstant(Instant.ofEpochMilli(timestamp), ZoneOffset.UTC);
    } catch (DateTimeException tdException) {
      //  throw new 
    }
}

default Long getLongFromDateTime(LocalDateTime dateTime) {
    return dateTime.atOffset(ZoneOffset.UTC).toInstant().toEpochMilli();
}

It's too late to answer for this question. But if someone is searching for this answer now I've made it to run with no errors.

First of all make sure to download and add maven to path. [ mvn --version ] will give you version specifications of it if you have added to the path correctly.

Now , add following code to the maven project [ pom.xml ] , in the following code replace with your own main file entry point for eg [ com.example.test.Test ].

      <plugin>
            <!-- Build an executable JAR -->
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.4</version>
            <configuration>
                <archive>
                    <manifest>
                    <mainClass>
            your_package_to_class_that_contains_main_file .MainFileName</mainClass>
                    </manifest>
                </archive>
            </configuration>
        </plugin>

Now go to the command line [CMD] in your project and type mvn package and it will generate a jar file as something like ProjectName-0.0.1-SNAPSHOT.jar under target directory.

Now navigate to the target directory by cd target.

Finally type java -jar jar-file-name.jar and yes this should work successfully if you don't have any errors in your program.

well, as an easier alternative and shorter, you could do this too!!

var fd = new FormData();

var file_data = object.get(0).files[i];
var other_data = $('form').serialize(); //page_id=&category_id=15&method=upload&required%5Bcategory_id%5D=Category+ID

fd.append("file", file_data);

$.ajax({
    url: 'add.php?'+ other_data,  //<== just add it to the end of url ***
    data: fd,
    contentType: false,
    processData: false,
    type: 'POST',
    success: function(data){
        alert(data);
    }
});

A cookie is simply a short text string that is sent back and forth between the client and the server. You could store name=bob; password=asdfas in a cookie and send that back and forth to identify the client on the server side. You could think of this as carrying on an exchange with a bank teller who has no short term memory, and needs you to identify yourself for each and every transaction. Of course using a cookie to store this kind information is horrible insecure. Cookies are also limited in size.

Now, when the bank teller knows about his/her memory problem, He/She can write down your information on a piece of paper and assign you a short id number. Then, instead of giving your account number and driver's license for each transaction, you can just say "I'm client 12"

Translating that to Web Servers: The server will store the pertinent information in the session object, and create a session ID which it will send back to the client in a cookie. When the client sends back the cookie, the server can simply look up the session object using the ID. So, if you delete the cookie, the session will be lost.

One other alternative is for the server to use URL rewriting to exchange the session id.

Suppose you had a link - www.myserver.com/myApp.jsp You could go through the page and rewrite every URL as www.myserver.com/myApp.jsp?sessionID=asdf or even www.myserver.com/asdf/myApp.jsp and exchange the identifier that way. This technique is handled by the web application container and is usually turned on by setting the configuration to use cookieless sessions.

This simple function works for me:

public static String leftPad(String string, int length, String pad) {
      return pad.repeat(length - string.length()) + string;
    }

Invocation:

String s = leftPad(myString, 10, "0");

<pre><form name="myform"  method="post" enctype="multipart/form-data">
    <input type="text"   id="name"   name="name" /> 
<input type="submit"/>
</form></pre>

<script language="JavaScript" type="text/javascript">
 var frmvalidator  = new Validator("myform");
    frmvalidator.EnableFocusOnError(false); 
    frmvalidator.EnableMsgsTogether(); 
    frmvalidator.addValidation("name","req","Plese Enter Name"); 

</script>

Note: before using the code above you have to add the gen_validatorv31.js file.

You don't need case in the where statement, just use parentheses and or:

Select * From Times
WHERE StartDate <= @Date AND EndDate >= @Date
AND (
    (@day = 'Monday' AND Monday = 1)
    OR (@day = 'Tuesday' AND Tuesday = 1)
    OR Wednesday = 1
)

Additionally, your syntax is wrong for a case. It doesn't append things to the string--it returns a single value. You'd want something like this, if you were actually going to use a case statement (which you shouldn't):

Select * From Times
WHERE (StartDate <= @Date) AND (EndDate >= @Date)
AND 1 = CASE WHEN @day = 'Monday' THEN Monday
             WHEN @day = 'Tuesday' THEN Tuesday
             ELSE Wednesday
        END 

And just for an extra umph, you can use the between operator for your date:

where @Date between StartDate and EndDate

Making your final query:

select
    * 
from 
    Times
where
    @Date between StartDate and EndDate
    and (
        (@day = 'Monday' and Monday = 1)
        or (@day = 'Tuesday' and Tuesday = 1)
        or Wednesday = 1
    )

Please put this code in head section

<link href='http://fonts.googleapis.com/css?family=Lato:400,700' rel='stylesheet' type='text/css'>

and use font-family: 'Lato', sans-serif; in your css. For example:

h1 {
    font-family: 'Lato', sans-serif;
    font-weight: 400;
}

Or you can use manually also

Generate .ttf font from fontSquiral

and can try this option

    @font-face {
        font-family: "Lato";
        src: url('698242188-Lato-Bla.eot');
        src: url('698242188-Lato-Bla.eot?#iefix') format('embedded-opentype'),
        url('698242188-Lato-Bla.svg#Lato Black') format('svg'),
        url('698242188-Lato-Bla.woff') format('woff'),
        url('698242188-Lato-Bla.ttf') format('truetype');
        font-weight: normal;
        font-style: normal;
}

Called like this

body {
  font-family: 'Lato', sans-serif;
}

New commands for installing Java via Homebrew:

• brew cask install adoptopenjdk/openjdk/adoptopenjdk8
• brew cask install adoptopenjdk/openjdk/adoptopenjdk11

See the homebrew-openjdk repo for the latest commands.

Installing Java

You can install Java via Homebrew, Jabba, SDKMAN or manually. See this answer for details on all the commands.

Switching Java versions*

You can switch Java versions with jenv Jabba, SDKMAN or manually. See details on all the switching commands here.

Best solutions

• Jabba is designed to work on multiple platforms, so it's a good option if you want a solution that'll also work on Windows
• Using Homebrew to download Java versions and jenv to switch versions provides a nice workflow. jenv makes it easy to work with Java versions stored in any directory on your machine, so it's a good alternative if you're interested in storing Java in non-default directories.
• Using SDKMAN to download Javas and switch versions is another great alternative
• Manually switching should be avoided because it's an unnecessary headache.

Function to manually switch Java versions

Here's the Bash / ZSH function for manually switching Java versions (by OpenJDK):

jdk() {
        version=$1
        export JAVA_HOME=$(/usr/libexec/java_home -v"$version");
        java -version
 }

There are great tools for switching Java versions, so I highly recommend against doing it manually.

Before apply .setBounds(..) try to convert current Drawable into ScaleDrawable

drawable = new ScaleDrawable(drawable, 0, width, height).getDrawable();

after that

drawable.setBounds(0, 0, width, height);

will work

if you are getting id from url try

$id = (isset($_GET['id']) ? $_GET['id'] : '');

if getting from form you need to use POST method cause your form has method="post"

 $id = (isset($_POST['id']) ? $_POST['id'] : '');

For php notices use isset() or empty() to check values exist or not or initialize variable first with blank or a value

$id= '';

SELECT TOP 10 * FROM TABLE_NAME ORDER BY ORDERED_UNIQUE_COLUMN DESC

ORDERED_UNIQUE_COLUMN could be your incrementing primary key or a timestamp

This is what i used:

var culture = System.Globalization.CultureInfo.CurrentCulture;

and it's working :)

The answer is, "No."

What C programmers do is store the size of the array somewhere. It can be part of a structure, or the programmer can cheat a bit and malloc() more memory than requested in order to store a length value before the start of the array.

As @Devart says, the total length of your index is too long.

The short answer is that you shouldn't be indexing such long VARCHAR columns anyway, because the index will be very bulky and inefficient.

The best practice is to use prefix indexes so you're only indexing a left substring of the data. Most of your data will be a lot shorter than 255 characters anyway.

You can declare a prefix length per column as you define the index. For example:

...
KEY `index` (`parent_menu_id`,`menu_link`(50),`plugin`(50),`alias`(50))
...

But what's the best prefix length for a given column? Here's a method to find out:

SELECT
 ROUND(SUM(LENGTH(`menu_link`)<10)*100/COUNT(`menu_link`),2) AS pct_length_10,
 ROUND(SUM(LENGTH(`menu_link`)<20)*100/COUNT(`menu_link`),2) AS pct_length_20,
 ROUND(SUM(LENGTH(`menu_link`)<50)*100/COUNT(`menu_link`),2) AS pct_length_50,
 ROUND(SUM(LENGTH(`menu_link`)<100)*100/COUNT(`menu_link`),2) AS pct_length_100
FROM `pds_core_menu_items`;

It tells you the proportion of rows that have no more than a given string length in the menu_link column. You might see output like this:

+---------------+---------------+---------------+----------------+
| pct_length_10 | pct_length_20 | pct_length_50 | pct_length_100 |
+---------------+---------------+---------------+----------------+
|         21.78 |         80.20 |        100.00 |         100.00 |
+---------------+---------------+---------------+----------------+

This tells you that 80% of your strings are less than 20 characters, and all of your strings are less than 50 characters. So there's no need to index more than a prefix length of 50, and certainly no need to index the full length of 255 characters.

PS: The INT(1) and INT(32) data types indicates another misunderstanding about MySQL. The numeric argument has no effect related to storage or the range of values allowed for the column. INT is always 4 bytes, and it always allows values from -2147483648 to 2147483647. The numeric argument is about padding values during display, which has no effect unless you use the ZEROFILL option.

You definitely want to use the second expression since months in JS are enumerated from 0.

Also you may use Date.parse method, but it uses different date format:

var timestamp = Date.parse("11/30/2011");
var dateObject = new Date(timestamp);

The second option is feasible also if you're using safe updates mode (and you're getting an error indicating that you've tried to update a table without a WHERE that uses a KEY column), by adding:

UPDATE TableB  
SET TableB.value = (  
SELECT TableA.value  
    FROM TableA  
    WHERE TableA.name = TableB.name  
)  
**where TableB.id < X**  
;

I don't know whether this has appeared obvious here. I would like to point out that as far as client-side (browser) JavaScript is concerned, you can add type="module" to both external as well as internal js scripts.

Say, you have a file 'module.js':

var a = 10;
export {a};

You can use it in an external script, in which you do the import, eg.:

<!DOCTYPE html><html><body>
<script type="module" src="test.js"></script><!-- Here use type="module" rather than type="text/javascript" -->
</body></html>

test.js:

import {a} from "./module.js";
alert(a);

You can also use it in an internal script, eg.:

<!DOCTYPE html><html><body>
<script type="module">
    import {a} from "./module.js";
    alert(a);
</script>
</body></html>

It is worthwhile mentioning that for relative paths, you must not omit the "./" characters, ie.:

import {a} from "module.js";     // this won't work

EntityFunctions is obsolete. Consider using DbFunctions instead.

var eventsCustom = eventCustomRepository.FindAllEventsCustomByUniqueStudentReference(userDevice.UniqueStudentReference)
   .Where(x => DbFunctions.TruncateTime(x.DateTimeStart) == currentDate.Date);

If you order a vector x, and find the values that is half way through the vector, you just found a median, or 50th percentile. Same logic applies for any percentage. Here are two examples.

x <- rnorm(100)
quantile(x, probs = c(0, 0.25, 0.5, 0.75, 1)) # quartile
quantile(x, probs = seq(0, 1, by= 0.1)) # decile

Check your Entity class. Use String instead of Long and float instead of double .

I'm not really sure, I guess it depends on the task: how often to run, how much complicated and how much direct communication with the rails project is needed etc. I guess if there was just "One Best Way" to do something, there wouldn't be so many different ways to do it.

At my last job in a Rails project, we needed to make a batch invitation mailer (survey invitations, not spamming) which should send the planned mails whenever the server had time. I think we were going to use daemon tools to run the rake tasks I had created.

Unfortunately, our company had some money problems and was "bought" by the main rival so the project was never completed, so I don't know what we would eventually have used.

Simply splitting by comma will also split commas that are within fields (e.g. a,b,"1,2,3",c), so it's not recommended. zero323's answer is good if you want to use the DataFrames API, but if you want to stick to base Spark, you can parse csvs in base Python with the csv module:

# works for both python 2 and 3
import csv
rdd = sc.textFile("file.csv")
rdd = rdd.mapPartitions(lambda x: csv.reader(x))

EDIT: As @muon mentioned in the comments, this will treat the header like any other row so you'll need to extract it manually. For example, header = rdd.first(); rdd = rdd.filter(lambda x: x != header) (make sure not to modify header before the filter evaluates). But at this point, you're probably better off using a built-in csv parser.

Same here, I try

source ~/.bashrc

Then, It worked

select 
 relname as table 
from 
 pg_stat_user_tables 
where schemaname = 'public'

• This will not work if track_activities is disabled

select 
  tablename as table 
from 
  pg_tables  
where schemaname = 'public'

• Read more about pg_tables

You can also force the application to open as administrator, if you have an administrator account, of course.

Locate the file, right click > properties > Shortcut > Advanced and check Run as Administrator

Then Click OK.

I have used a LogUtils class like in the Google IO example application. I modified this to use an application specific DEBUG constant instead of BuildConfig.DEBUG because BuildConfig.DEBUG is unreliable. Then in my Classes I have the following.

import static my.app.util.LogUtils.makeLogTag;
import static my.app.util.LogUtils.LOGV;

public class MyActivity extends FragmentActivity {
  private static final String TAG = makeLogTag(MyActivity.class);

  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    LOGV(TAG, "my message");
  }
}

Some code for a variation on this problem. Using the above code got me my click events as needed, but I was then stuck trying to work out which button had been clicked. My scenario is I have a dynamic amount of tab pages. On each tab page are (all dynamically created) 2 charts, 2 DGVs and a pair of radio buttons. Each control has a unique name relative to the tab, but there could be 20 radio buttons with the same name if I had 20 tab pages. The radio buttons switch between which of the 2 graphs and DGVs you get to see. Here is the code for when one of the radio buttons gets checked (There's a nearly identical block that swaps the charts and DGVs back):

   Private Sub radioFit_Components_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)

    If sender.name = "radioFit_Components" And sender.visible Then
        If sender.checked Then
            For Each ctrl As Control In TabControl1.SelectedTab.Controls
                Select Case ctrl.Name
                    Case "embChartSSE_Components"
                        ctrl.BringToFront()
                    Case "embChartSSE_Fit_Curve"
                        ctrl.SendToBack()
                    Case "dgvFit_Components"
                        ctrl.BringToFront()
                End Select
            Next

        End If
    End If

End Sub

This code will fire for any of the tab pages and swap the charts and DGVs over on any of the tab pages. The sender.visible check is to stop the code firing when the form is being created.

I was looking for the same solution and Pawel gave me 99% of the answer. The only thing that was missing that I needed for the Extension to display was adding the following Razor Code into the cshtml(view) page:

@using programname.Models.Extensions

I was looking for the FirstName, to display in the top right of my NavBar after the user logged in.

I thought I would post this incase it helps someone else, So here is my code:

I created a new folder called Extensions(Under my Models Folder) and created the new class as Pawel specified above: IdentityExtensions.cs

using System.Security.Claims;
using System.Security.Principal;

namespace ProgramName.Models.Extensions
{
    public static class IdentityExtensions
    {
        public static string GetUserFirstname(this IIdentity identity)
        {
            var claim = ((ClaimsIdentity)identity).FindFirst("FirstName");
            // Test for null to avoid issues during local testing
            return (claim != null) ? claim.Value : string.Empty;
        }
    }
}

IdentityModels.cs :

public class ApplicationUser : IdentityUser
{

    //Extended Properties
    public string FirstName { get; internal set; }
    public string Surname { get; internal set; }
    public bool isAuthorized { get; set; }
    public bool isActive { get; set; }

    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
    {
        // Note the authenticationType must match the one defined in CookieAuthenticationOptions.AuthenticationType
        var userIdentity = await manager.CreateIdentityAsync(this, DefaultAuthenticationTypes.ApplicationCookie);
        // Add custom user claims here
        userIdentity.AddClaim(new Claim("FirstName", this.FirstName));

        return userIdentity;
    }
}

Then in my _LoginPartial.cshtml(Under Views/Shared Folders) I added @using.ProgramName.Models.Extensions

I then added the change to the folling line of code that was going to use the Users First name after Logging in :

@Html.ActionLink("Hello " + User.Identity.GetUserFirstname() + "!", "Index", "Manage", routeValues: null, htmlAttributes: new { title = "Manage" })

Perhaps this helps someone else down the line.

Sometimes, a row contain double quote column. When csv reader try read this row, not understood end of column and fire this raise. Solution is below:

reader = csv.reader(cf, quoting=csv.QUOTE_MINIMAL)

This will work fast:

Case 1 - File2 = File1 + extra text appended.

grep -Fxvf File2.txt File1.txt >> File3.txt

File 1: 80 Lines File 2: 100 Lines File 3: 20 Lines

As @arpanmangal, the solutions above do not work for me (matplotlib 3.0.3, python 3.5.2).

It seems that using .show() in a figure, e.g., figure.show(), is not recommended, because this method does not manage a GUI event loop and therefore the figure is just shown briefly. (See figure.show() documentation). However, I do not find any another way to show only a figure.

In my solution I get to prevent the figure for instantly closing by using click events. We do not have to close the figure — closing the figure deletes it.

I present two options: - waitforbuttonpress(timeout=-1) will close the figure window when clicking on the figure, so we cannot use some window functions like zooming. - ginput(n=-1,show_clicks=False) will wait until we close the window, but it releases an error :-.

Example:

import matplotlib.pyplot as plt

fig1, ax1 = plt.subplots(1) # Creates figure fig1 and add an axes, ax1
fig2, ax2 = plt.subplots(1) # Another figure fig2 and add an axes, ax2

ax1.plot(range(20),c='red') #Add a red straight line to the axes of fig1.
ax2.plot(range(100),c='blue') #Add a blue straight line to the axes of fig2.

#Option1: This command will hold the window of fig2 open until you click on the figure
fig2.waitforbuttonpress(timeout=-1) #Alternatively, use fig1

#Option2: This command will hold the window open until you close the window, but
#it releases an error.
#fig2.ginput(n=-1,show_clicks=False) #Alternatively, use fig1

#We show only fig2
fig2.show() #Alternatively, use fig1

All the above answers are correct. Just providing with your dataset to find perfect divisor:

#include <stdio.h>

int main() 
{

int arr[7] = {3,5,7,8,9,17,19};
int j = 51;
int i = 0;

for (i=0 ; i < 7; i++) {
    if (j % arr[i] == 0)
        printf("%d is the perfect divisor of %d\n", arr[i], j);
}

return 0;
}

Perhaps this:

str = str.Split(",").First();

Your submission will cancel the redirect or vice versa.

I do not see the reason for the redirect in the first place since why do you have an order form that does nothing.

That said, here is how to do it. Firstly NEVER put code on the submit button but do it in the onsubmit, secondly return false to stop the submission

NOTE This code will IGNORE the action and ONLY execute the script due to the return false/preventDefault

function redirect() {
  window.location.replace("login.php");
  return false;
}

using

<form name="form1" id="form1" method="post" onsubmit="return redirect()">  
  <input type="submit" class="button4" name="order" id="order" value="Place Order" >
</form>

Or unobtrusively:

window.onload=function() {
  document.getElementById("form1").onsubmit=function() {
    window.location.replace("login.php");
    return false;
  }
}

using

<form id="form1" method="post">  
  <input type="submit" class="button4" value="Place Order" >
</form>

jQuery:

$("#form1").on("submit",function(e) {
   e.preventDefault(); // cancel submission
   window.location.replace("login.php");
});

-----

Example:

$("#form1").on("submit", function(e) {_x000D_
  e.preventDefault(); // cancel submission_x000D_
  alert("this could redirect to login.php"); _x000D_
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>_x000D_
_x000D_
_x000D_
<form id="form1" method="post" action="javascript:alert('Action!!!')">_x000D_
  <input type="submit" class="button4" value="Place Order">_x000D_
</form>

In your comment on @Kenneth's answer you're saying that ReadAsStringAsync() is returning empty string.

That's because you (or something - like model binder) already read the content, so position of internal stream in Request.Content is on the end.

What you can do is this:

public static string GetRequestBody()
{
    var bodyStream = new StreamReader(HttpContext.Current.Request.InputStream);
    bodyStream.BaseStream.Seek(0, SeekOrigin.Begin);
    var bodyText = bodyStream.ReadToEnd();
    return bodyText;
}

Don't.

Use a regex for a quick sanity check, something like .@.., but almost all langauges / frameworks have better methods for checking an e-mail address. Use that.

It is possible to validate an e-mail address with a regex, but it is a long regex. Very long.
And in the end you will be none the wiser. You'll only know that the format is valid, but you still don't know if it's an active e-mail address. The only way to find out, is by sending a confirmation e-mail.

If Install before Mongodb Just Start with this code :

brew services start mongodb-community
next => mongod

If Not Install before this Way

1.brew tap mongodb/brew
2.brew install mongodb-community
3.brew services start mongodb-community
4.mongod

try this, you can control the min/max value :

import 'dart:math';

void main(){
  random(min, max){
    var rn = new Random();
    return min + rn.nextInt(max - min);
  }
  print(random(5,20)); // Output : 19, 6, 15..
}

I want this function to work with all positive 64-bit signed integers

Math.sqrt() works with doubles as input parameters, so you won't get accurate results for integers bigger than 2^53.

To Open a File in Android Programatically,you can use this code :- We use File Provider for internal file access .You can also see details about File Provider here in this linkfileprovidr1,file provider2,file provider3. Create a File Provider and defined in Manifest File .

<provider
    android:name="android.support.v4.content.FileProvider"
    android:authorities="com.packagename.app.fileprovider"
    android:exported="false"
    android:grantUriPermissions="true">

    <meta-data
        android:name="android.support.FILE_PROVIDER_PATHS"
        android:resource="@xml/file_paths">
    </meta-data>

</provider>

Define file_path in resources file.

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-path
        name="my_images"
        path="Android/data/com.packagename.app/files/Pictures" />

    <external-files-path name="vivalinkComProp" path="Android/data/com.vivalink.app/vivalinkComProp/docs"/>
    <external-path
        name="external"
        path="." />
    <external-files-path
        name="external_files"
        path="." />
    <cache-path
        name="cache"
        path="." />
    <external-cache-path
        name="external_cache"
        path="." />
    <files-path
        name="files"
        path="." />

</paths>

Define Intent For View

String directory_path = Environment.getExternalStorageDirectory().getPath() + "/MyFile/";
String targetPdf = directory_path + fileName + ".pdf";
File filePath = new File(targetPdf);

Intent intentShareFile = new Intent(Intent.ACTION_VIEW);
File fileWithinMyDir = new File(targetPdf);
Uri bmpUri = FileProvider.getUriForFile(activity, "com.packagename.app.fileprovider", filePath);
if (fileWithinMyDir.exists()) {
    intentShareFile.setDataAndType(bmpUri,"application/pdf");
    intentShareFile.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    intentShareFile.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_ACTIVITY_CLEAR_TOP);
    startActivity(Intent.createChooser(intentShareFile, "Open File Using..."));

}

You can use different way to create a file provider in android . Hope this will help you.

Java objects reside in an area called the heap, while metadata such as class objects and method objects reside in the permanent generation or Perm Gen area. The permanent generation is not part of the heap.

The heap is created when the JVM starts up and may increase or decrease in size while the application runs. When the heap becomes full, garbage is collected. During the garbage collection objects that are no longer used are cleared, thus making space for new objects.

-Xmssize Specifies the initial heap size.

-Xmxsize Specifies the maximum heap size.

-XX:MaxPermSize=size Sets the maximum permanent generation space size. This option was deprecated in JDK 8, and superseded by the -XX:MaxMetaspaceSize option.

Sizes are expressed in bytes. Append the letter k or K to indicate kilobytes, m or M to indicate megabytes, g or G to indicate gigabytes.

References:

How is the java memory pool divided?

What is perm space?

Java (JVM) Memory Model – Memory Management in Java

Java 7 SE Command Line Options

Java 7 HotSpot VM Options

The text before each parameter is part of the method name. From your example, the name of the method is actually

-getBusStops:forTime:

Each : represents an argument. In a method call, the method name is split at the :s and arguments appear after the :s. e.g.

[getBusStops: arg1 forTime: arg2]

It is reasonable to expect that you cannot do any better than O(N log N) in running time.

However, the interesting part is to investigate whether you can sort it in-place, stably, its worst-case behavior and so on.

Simon Tatham, of Putty fame, explains how to sort a linked list with merge sort. He concludes with the following comments:

Like any self-respecting sort algorithm, this has running time O(N log N). Because this is Mergesort, the worst-case running time is still O(N log N); there are no pathological cases.

Auxiliary storage requirement is small and constant (i.e. a few variables within the sorting routine). Thanks to the inherently different behaviour of linked lists from arrays, this Mergesort implementation avoids the O(N) auxiliary storage cost normally associated with the algorithm.

There is also an example implementation in C that work for both singly and doubly linked lists.

As @Jørgen Fogh mentions below, big-O notation may hide some constant factors that can cause one algorithm to perform better because of memory locality, because of a low number of items, etc.

The only reason that I know of why a formula wouldn't be available to summarize on is if it didn't reference any database fields or whose value wasn't dynamic throughout sections of the report. For example, if you have a formula that returns a constant it won't be available. Or if it only references a field that is set throughout the report and returns a value based on that field, like "if {parameter}=1 then 1" would not be available either.

In general, the formula's value should not be static through the sections of the report you're summarizing over (Though the way Crystal determines this is beyond me and this doesn't seem to be a hard and fast rule)

EDIT: One other reason why a formula wouldn't be available is if you're already using a summary function in that formula. Only one level of summaries at a time!

If you use vue cli with the Webpack template (default config), you can create and add your environment variables to a .env file.

The variables will automatically be accessible under process.env.variableName in your project. Loaded variables are also available to all vue-cli-service commands, plugins and dependencies.

You have a few options, this is from the Environment Variables and Modes documentation:

.env                # loaded in all cases
.env.local          # loaded in all cases, ignored by git
.env.[mode]         # only loaded in specified mode
.env.[mode].local   # only loaded in specified mode, ignored by git

Your .env file should look like this:

VUE_APP_MY_ENV_VARIABLE=value
VUE_APP_ANOTHER_VARIABLE=value

It is my understanding that all you need to do is create the .env file and add your variables then you're ready to go! :)

As noted in comment below: If you are using Vue cli 3, only variables that start with VUE_APP_ will be loaded.

Don't forget to restart serve if it is currently running.

If you want to keep it simple go ahead and try this out.

$page_number = mysqli_escape_string($con, $_GET['page']);
$count_per_page = 20;
$next_offset = $page_number * $count_per_page;
$cat =mysqli_query($con, "SELECT * FROM categories LIMIT $count_per_page OFFSET $next_offset");
while ($row = mysqli_fetch_array($cat))
        $count = $row[0];

The rest is up to you. If you have result comming from two tables i suggest you try a different approach.

MySQL says:

All integer types can have an optional (nonstandard) attribute UNSIGNED. Unsigned type can be used to permit only nonnegative numbers in a column or when you need a larger upper numeric range for the column. For example, if an INT column is UNSIGNED, the size of the column's range is the same but its endpoints shift from -2147483648 and 2147483647 up to 0 and 4294967295.

When do I use it ?

Ask yourself this question: Will this field ever contain a negative value?
If the answer is no, then you want an UNSIGNED data type.

A common mistake is to use a primary key that is an auto-increment INT starting at zero, yet the type is SIGNED, in that case you’ll never touch any of the negative numbers and you are reducing the range of possible id's to half.

You shouldn't need to configure the consumes or produces attribute at all. Spring will automatically serve JSON based on the following factors.

• The accepts header of the request is application/json
• @ResponseBody annotated method
• Jackson library on classpath

You should also follow Wim's suggestion and define your controller with the @RestController annotation. This will save you from annotating each request method with @ResponseBody

Another benefit of this approach would be if a client wants XML instead of JSON, they would get it. They would just need to specify xml in the accepts header.

Try out this package to tail all the queries (without oplog operations): https://www.npmjs.com/package/mongo-tail-queries

(Disclaimer: I wrote this package exactly for this need)

Check

man paste

possible followed by some command like untabify or tabs2spaces

Shutting down the computer always kills the process for me.

Your modification of sys.path assumes the current working directory is always in main/. This is not the case. Instead, just add the parent directory to sys.path:

import sys
import os.path

sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
import gen_py.lib

Don't forget to include a file __init__.py in gen_py and lib - otherwise, they won't be recognized as Python modules.

On the command line:

> php yourfile.php

You can use the following example to store a query result in a variable using PL/pgSQL:

 select * into demo from maintenanceactivitytrack ; 
    raise notice'p_maintenanceid:%',demo;

Here's what I think is a better method:

public int getYearsBetweenDates(Date first, Date second) {
    Calendar firstCal = GregorianCalendar.getInstance();
    Calendar secondCal = GregorianCalendar.getInstance();

    firstCal.setTime(first);
    secondCal.setTime(second);

    secondCal.add(Calendar.DAY_OF_YEAR, 1 - firstCal.get(Calendar.DAY_OF_YEAR));

    return secondCal.get(Calendar.YEAR) - firstCal.get(Calendar.YEAR);
}

EDIT

Apart from a bug which I fixed, this method does not work well with leap years. Here's a complete test suite. I guess you're better off using the accepted answer.

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;

class YearsBetweenDates {
    public static int getYearsBetweenDates(Date first, Date second) {
        Calendar firstCal = GregorianCalendar.getInstance();
        Calendar secondCal = GregorianCalendar.getInstance();

        firstCal.setTime(first);
        secondCal.setTime(second);

        secondCal.add(Calendar.DAY_OF_YEAR, 1 - firstCal.get(Calendar.DAY_OF_YEAR));

        return secondCal.get(Calendar.YEAR) - firstCal.get(Calendar.YEAR);
    }

    private static class TestCase {
        public Calendar date1;
        public Calendar date2;
        public int expectedYearDiff;
        public String comment;

        public TestCase(Calendar date1, Calendar date2, int expectedYearDiff, String comment) {
            this.date1 = date1;
            this.date2 = date2;
            this.expectedYearDiff = expectedYearDiff;
            this.comment = comment;
        }
    }

    private static TestCase[] tests = {
        new TestCase(
                new GregorianCalendar(2014, Calendar.JULY, 15),
                new GregorianCalendar(2015, Calendar.JULY, 15),
                1,
                "exactly one year"),
        new TestCase(
                new GregorianCalendar(2014, Calendar.JULY, 15),
                new GregorianCalendar(2017, Calendar.JULY, 14),
                2,
                "one day less than 3 years"),
        new TestCase(
                new GregorianCalendar(2015, Calendar.NOVEMBER, 3),
                new GregorianCalendar(2017, Calendar.MAY, 3),
                1,
                "a year and a half"),
        new TestCase(
                new GregorianCalendar(2016, Calendar.JULY, 15),
                new GregorianCalendar(2017, Calendar.JULY, 15),
                1,
                "leap years do not compare correctly"),
    };

    public static void main(String[] args) {
        SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        for (TestCase t : tests) {
            int diff = getYearsBetweenDates(t.date1.getTime(), t.date2.getTime());
            String result = diff == t.expectedYearDiff ? "PASS" : "FAIL";
            System.out.println(t.comment + ": " +
                    df.format(t.date1.getTime()) + " -> " +
                    df.format(t.date2.getTime()) + " = " +
                    diff + ": " + result);
        }
    }
}

The following sequence of commands does remove every name from the current module:

>>> import sys
>>> sys.modules[__name__].__dict__.clear()

I doubt you actually DO want to do this, because "every name" includes all built-ins, so there's not much you can do after such a total wipe-out. Remember, in Python there is really no such thing as a "variable" -- there are objects, of many kinds (including modules, functions, class, numbers, strings, ...), and there are names, bound to objects; what the sequence does is remove every name from a module (the corresponding objects go away if and only if every reference to them has just been removed).

Maybe you want to be more selective, but it's hard to guess exactly what you mean unless you want to be more specific. But, just to give an example:

>>> import sys
>>> this = sys.modules[__name__]
>>> for n in dir():
...   if n[0]!='_': delattr(this, n)
... 
>>>

This sequence leaves alone names that are private or magical, including the __builtins__ special name which houses all built-in names. So, built-ins still work -- for example:

>>> dir()
['__builtins__', '__doc__', '__name__', '__package__', 'n']
>>> 

As you see, name n (the control variable in that for) also happens to stick around (as it's re-bound in the for clause every time through), so it might be better to name that control variable _, for example, to clearly show "it's special" (plus, in the interactive interpreter, name _ is re-bound anyway after every complete expression entered at the prompt, to the value of that expression, so it won't stick around for long;-).

Anyway, once you have determined exactly what it is you want to do, it's not hard to define a function for the purpose and put it in your start-up file (if you want it only in interactive sessions) or site-customize file (if you want it in every script).

Download Json.NET from here http://james.newtonking.com/projects/json-net.aspx

name deserializedName = JsonConvert.DeserializeObject<name>(jsonData);

Your can use your tokenizer and pad sequencing for a new piece of text. This is followed by model prediction. This will return the prediction as a numpy array plus the label itself.

For example:

new_complaint = ['Your service is not good']
seq = tokenizer.texts_to_sequences(new_complaint)
padded = pad_sequences(seq, maxlen=maxlen)
pred = model.predict(padded)
print(pred, labels[np.argmax(pred)])

I had your issue and got it working again (on windows 7).

My setup had actually worked at first. I installed postgres and then set up the system PATH variables with C:\Program Files\PostgreSQL\9.6\bin; C:\Program Files\PostgreSQL\9.6\lib. The psql keyword in the command line gave no errors.

I deleted the PATH variables above one at a time to test if they were both really needed. Psql continued to work after I deleted the lib path, but stopped working after I deleted the bin path. When I returned bin, it still didn't work, and the same with lib. I closed and reopened the command line between tries, and checked the path. The problem lingered even though the path was identical to how it had been when working. I re-pasted it.

I uninstalled and reinstalled postgres. The problem lingered. It finally worked after I deleted the spaces between the "; C:..." in the paths and re-saved.

Not sure if it was really the spaces that were the culprit. Maybe the environment variables just needed to be altered and refreshed after the install.

I'm also still not sure if both lib and bin paths are needed since there seems to be some kind of lingering memory for old path configurations. I don't want to test it again though.

class Second:
    def __init__(self, data):
        self.data = data

class First:
    def SecondClass(self, data):
        return Second(data)

FirstClass = First()
SecondClass = FirstClass.SecondClass('now you see me')
print SecondClass.data

Data type Range Storage

bigint  -2^63 (-9,223,372,036,854,775,808) to 2^63-1 (9,223,372,036,854,775,807)    8 Bytes
int -2^31 (-2,147,483,648) to 2^31-1 (2,147,483,647)    4 Bytes
smallint    -2^15 (-32,768) to 2^15-1 (32,767)  2 Bytes
tinyint 0 to 255    1 Byte

Example

The following example creates a table using the bigint, int, smallint, and tinyint data types. Values are inserted into each column and returned in the SELECT statement.

CREATE TABLE dbo.MyTable
(
  MyBigIntColumn bigint
 ,MyIntColumn  int
 ,MySmallIntColumn smallint
 ,MyTinyIntColumn tinyint
);

GO

INSERT INTO dbo.MyTable VALUES (9223372036854775807, 214483647,32767,255);
 GO
SELECT MyBigIntColumn, MyIntColumn, MySmallIntColumn, MyTinyIntColumn
FROM dbo.MyTable;

You can be guided by this example. On your css file:

.deskContent {
    background-image: url(../img/big-pic.png);
    width: 100%;
    height: 400px;
    background-repeat: no-repeat;
    background-size: contain; 
}

.phoneContent {
    background-image: url(../img/small-pic.png);
    width: 100%;
    height: 100px;
    background-repeat: no-repeat;
    background-size: contain;
}

@media all and (max-width: 959px) {
    .deskContent {display:block;}
    .phoneContent {display:none;}
}

@media all and (max-width: 479px) {
    .deskContent {display:none;}
    .phoneContent {display:block;}
}

On your html file:

<div class="deskContent">Content for desktop</div>
<div class="phoneContent">Content for mobile</div>

I sort of agree with leander on this one.

call:

new calc_stanica().execute(stringList.toArray(new String[stringList.size()]));

task:

public class calc_stanica extends AsyncTask<String, Void, ArrayList<String>> {
        @Override
        protected ArrayList<String> doInBackground(String... args) {
           ...
        }

        @Override
        protected void onPostExecute(ArrayList<String> result) {
           ... //do something with the result list here
        }
}

Or you could just make the result list a class parameter and replace the ArrayList with a boolean (success/failure);

public class calc_stanica extends AsyncTask<String, Void, Boolean> {
        private List<String> resultList;

        @Override
        protected boolean doInBackground(String... args) {
           ...
        }

        @Override
        protected void onPostExecute(boolean success) {
           ... //if successfull, do something with the result list here
        }
}

You're remarkably close.

Here's the code you wrote in the question:

questionText.replace(/[0-9]/g, '');

The code you've written does indeed look at the questionText variable, and produce output which is the original string, but with the digits replaced with empty string.

However, it doesn't assign it automatically back to the original variable. You need to specify what to assign it to:

questionText = questionText.replace(/[0-9]/g, '');

I guess it follows mathematical tradition. In mathematics, it is often said "let x be arbitrary real number" or like that.

This the way work for me do one single directory or more or them: need to import java.io.File;
/*enter the code below to add a diectory dir1 or check if exist dir1, if does not, so create it and same with dir2 and dir3 */

    File filed = new File("C:\\dir1");
    if(!filed.exists()){  if(filed.mkdir()){ System.out.println("directory is created"); }} else{ System.out.println("directory exist");  }

    File filel = new File("C:\\dir1\\dir2");
    if(!filel.exists()){  if(filel.mkdir()){ System.out.println("directory is created");   }} else{ System.out.println("directory exist");  }

    File filet = new File("C:\\dir1\\dir2\\dir3");
    if(!filet.exists()){  if(filet.mkdir()){ System.out.println("directory is  created"); }}  else{ System.out.println("directory exist");  }

Just to throw my two cents in: another common cause of this error in my experience is code in the Form_Resize event that uses math to resize controls on a form. Control dimensions (Height and Width) can't be set to negative values, so code like the following in your Form_Resize event can cause this error:

Private Sub Form_Resize()
    'Resize text box to fit the form, with a margin of 1000 twips on the right.'
    'This will error out if the width of the Form drops below 1000 twips.'
    txtFirstName.Width = Me.Width - 1000
End Sub

The above code will raise an an "Invalid property value" error if the form is resized to less than 1000 twips wide. If this is the problem, the easiest solution is to add On Error Resume Next as the first line, so that these kinds of errors are ignored. This is one of those rare situations in VB6 where On Error Resume Next is your friend.

For those who would like to use developer powershell. Here are the lines to add to your settings.json:

"terminal.integrated.automationShell.windows": "C:\\Windows\\SysWOW64\\WindowsPowerShell\\v1.0\\powershell.exe",
"terminal.integrated.shellArgs.windows": [
    "-noe",
    "-c",
    " &{Import-Module 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\Common7\\Tools\\Microsoft.VisualStudio.DevShell.dll'; Enter-VsDevShell b7c50c8d} ",
    ],

A dependency has to be available from the registry to be installed just by specifying a version descriptor.

You can certainly create and use your own registry instead of registry.npmjs.org if your projects shouldn't be shared publicly.

But, if it's not in a registry, it'll have to be referenced by URL or Git URL. To specify a version with a Git URL, include an appropriate <commit-ish>, such as a tag, at the end as a URL fragment.

Example, for a tag named 0.3.1:

"dependencies": {
  "myprivatemodule": "[email protected]:...#0.3.1"
}

Note: The above snippet shows the base URL the same as it was posted in the question.

The snipped portion (...) should be filled in:

"myprivatemodule": "[email protected]:{owner}/{project}.git#0.3.1"

And, a different address format will be needed when SSH access isn't available:

"myprivatemodule": "git://github.com/{owner}/{project}.git#0.3.1"

Depending on your OS, you may also be able to link to the dependency in another folder where you have it cloned from Github.

window.onload = myOnloadFunc and <body onload="myOnloadFunc();"> are different ways of using the same event. Using window.onload is less obtrusive though - it takes your JavaScript out of the HTML.

All of the common JavaScript libraries, Prototype, ExtJS, Dojo, JQuery, YUI, etc. provide nice wrappers around events that occur as the document is loaded. You can listen for the window onLoad event, and react to that, but onLoad is not fired until all resources have been downloaded, so your event handler won't be executed until that last huge image has been fetched. In some cases that's exactly what you want, in others you might find that listening for when the DOM is ready is more appropriate - this event is similar to onLoad but fires without waiting for images, etc. to download.

Suppose you have a function:

def sinus2d(x, y):
    return np.sin(x) + np.sin(y)

and you want, for example, to see what it looks like in the range 0 to 2*pi. How would you do it? There np.meshgrid comes in:

xx, yy = np.meshgrid(np.linspace(0,2*np.pi,100), np.linspace(0,2*np.pi,100))
z = sinus2d(xx, yy) # Create the image on this grid

and such a plot would look like:

import matplotlib.pyplot as plt
plt.imshow(z, origin='lower', interpolation='none')
plt.show()

So np.meshgrid is just a convenience. In principle the same could be done by:

z2 = sinus2d(np.linspace(0,2*np.pi,100)[:,None], np.linspace(0,2*np.pi,100)[None,:])

but there you need to be aware of your dimensions (suppose you have more than two ...) and the right broadcasting. np.meshgrid does all of this for you.

Also meshgrid allows you to delete coordinates together with the data if you, for example, want to do an interpolation but exclude certain values:

condition = z>0.6
z_new = z[condition] # This will make your array 1D

so how would you do the interpolation now? You can give x and y to an interpolation function like scipy.interpolate.interp2d so you need a way to know which coordinates were deleted:

x_new = xx[condition]
y_new = yy[condition]

and then you can still interpolate with the "right" coordinates (try it without the meshgrid and you will have a lot of extra code):

from scipy.interpolate import interp2d
interpolated = interp2d(x_new, y_new, z_new)

and the original meshgrid allows you to get the interpolation on the original grid again:

interpolated_grid = interpolated(xx[0], yy[:, 0]).reshape(xx.shape)

These are just some examples where I used the meshgrid there might be a lot more.

You don't have to use the message passing to obtain or modify DOM. I used chrome.tabs.executeScriptinstead. In my example I am using only activeTab permission, therefore the script is executed only on the active tab.

part of manifest.json

"browser_action": {
    "default_title": "Test",
    "default_popup": "index.html"
},
"permissions": [
    "activeTab",
    "<all_urls>"
]

index.html

<!DOCTYPE html>
<html>
  <head></head>
  <body>
    <button id="test">TEST!</button>
    <script src="test.js"></script>
  </body>
</html>

test.js

document.getElementById("test").addEventListener('click', () => {
    console.log("Popup DOM fully loaded and parsed");

    function modifyDOM() {
        //You can play with your DOM here or check URL against your regex
        console.log('Tab script:');
        console.log(document.body);
        return document.body.innerHTML;
    }

    //We have permission to access the activeTab, so we can call chrome.tabs.executeScript:
    chrome.tabs.executeScript({
        code: '(' + modifyDOM + ')();' //argument here is a string but function.toString() returns function's code
    }, (results) => {
        //Here we have just the innerHTML and not DOM structure
        console.log('Popup script:')
        console.log(results[0]);
    });
});

I also recommend using Joda as mentioned before.

Solving your problem using standard Java Date objects only can be done as follows:

    // **** YOUR CODE **** BEGIN ****
    long ts = System.currentTimeMillis();
    Date localTime = new Date(ts);
    String format = "yyyy/MM/dd HH:mm:ss";
    SimpleDateFormat sdf = new SimpleDateFormat(format);

    // Convert Local Time to UTC (Works Fine)
    sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
    Date gmtTime = new Date(sdf.format(localTime));
    System.out.println("Local:" + localTime.toString() + "," + localTime.getTime() + " --> UTC time:"
            + gmtTime.toString() + "," + gmtTime.getTime());

    // **** YOUR CODE **** END ****

    // Convert UTC to Local Time
    Date fromGmt = new Date(gmtTime.getTime() + TimeZone.getDefault().getOffset(localTime.getTime()));
    System.out.println("UTC time:" + gmtTime.toString() + "," + gmtTime.getTime() + " --> Local:"
            + fromGmt.toString() + "-" + fromGmt.getTime());

Output:

Local:Tue Oct 15 12:19:40 CEST 2013,1381832380522 --> UTC time:Tue Oct 15 10:19:40 CEST 2013,1381825180000
UTC time:Tue Oct 15 10:19:40 CEST 2013,1381825180000 --> Local:Tue Oct 15 12:19:40 CEST 2013-1381832380000

If you are planning to use appending more then once, you might want to write a function:

//Append text to input element
function jQ_append(id_of_input, text){
    var input_id = '#'+id_of_input;
    $(input_id).val($(input_id).val() + text);
}

After you can just call it:

jQ_append('my_input_id', 'add this text');

Try map.remove(); before you try to reload the map. This removes the previous map element using Leaflet's library (instead of jquery's).

You could do this:

var div = document.getElementById("div");
div.addEventListener("mousedown", function() {
  window.addEventListener("mousemove", drag);
  window.addEventListener("mouseup", lift);
  var didDrag = false;
  function drag() {
    //when the person drags their mouse while holding the mouse button down
    didDrag = true;
    div.innerHTML = "drag"
  }
  function lift() {
    //when the person lifts mouse
    if (!didDrag) {
      //if the person didn't drag
      div.innerHTML = "click";
    } else div.innerHTML = "drag";
    //delete event listeners so that it doesn't keep saying drag
    window.removeEventListener("mousemove", drag)
    window.removeEventListener("mouseup", this)
  }
})

body {
  outline: none;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
}
#div {
  /* calculating -5px for each side of border in case border-box doesn't work */
  width: calc(100vw - 10px);
  height: calc(100vh - 10px);
  border: 5px solid orange;
  background-color: yellow;
  font-weight: 700;
  display: grid;
  place-items: center;
  user-select: none;
  cursor: pointer;
  padding: 0;
  margin: 0;
}

<html>
  <body>
    <div id="div">Click me or drag me.</div>
  </body>
</html>

you can do it with filter query q=*:*&fq=-id:*

You may change the "columnName" type from TEXT to VARCHAR(MAX). TEXT column can't be used with "=".
see this topic

What I would do is comment out the Dockerfile below and including the offending line. Then you can run the container and run the docker commands by hand, and look at the logs in the usual way. E.g. if the Dockerfile is

RUN foo
RUN bar
RUN baz

and it's dying at bar I would do

RUN foo
# RUN bar
# RUN baz

Then

$ docker build -t foo .
$ docker run -it foo bash
container# bar
...grep logs...

Put the text file in the assets directory. If there isnt an assets dir create one in the root of the project. Then you can use Context.getAssets().open("BlockForTest.txt"); to open a stream to this file.

You can make it a non-submitting button (<button type="button">) and hook something like window.location = 'http://where.you.want/to/go' into its onclick handler. This does not work without javascript enabled though.

Or you can make it a submit button, and do a redirect on the server, although this obviously requires some kind of server-side logic, but the upside is that is doesn't require javascript.

(actually, forget the second solution - if you can't use a form, the submit button is out)

Here is how you can trigger a block after a delay in Swift:

runThisAfterDelay(seconds: 2) { () -> () in
    print("Prints this 2 seconds later in main queue")
}

/// EZSwiftExtensions
func runThisAfterDelay(seconds seconds: Double, after: () -> ()) {
    let time = dispatch_time(DISPATCH_TIME_NOW, Int64(seconds * Double(NSEC_PER_SEC)))
    dispatch_after(time, dispatch_get_main_queue(), after)
}

Its included as a standard function in my repo.

Between the opening and closing tag in our case textarea tag shouldn't be space or newline character or any text(value).

If there's space, newline character or any text, it's considered as value which overrides placeholder.

    **PlaceHolder Appears**
    <textarea placeholder="Am Default Message"></textarea>

    **PlaceHolder Doesn't Appear**

    <textarea placeholder="Am Default Message">  </textarea>
   <textarea placeholder="Am Default Message"> 
   </textarea>
   <textarea placeholder="Am Default Message">Something</textarea>

Not purely themes, but MahApps.Metro provides Windows 8 Look and feel with a few variants like dark and light base themes with green,blue etc for text and others. Its pretty cool and can be used out of the box.

   function validateDate() {
        // get dates from input fields
        var startDate = $("#startDate").val();
        var endDate = $("#endDate").val();
        var sdate = startDate.split("-");
        var edate = endDate.split("-");
        var diffd = (edate[2] - sdate[2]) + 1;
        var leap = [ 0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
        var nonleap = [ 0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
        if (sdate[0] > edate[0]) {
            alert("Please enter End Date Year greater than Start Date Year");
            document.getElementById("endDate").value = "";
            diffd = "";
        } else if (sdate[1] > edate[1]) {
            alert("Please enter End Date month greater than Start Date month");
            document.getElementById("endDate").value = "";
            diffd = "";
        } else if (sdate[2] > edate[2]) {
            alert("Please enter End Date greater than Start Date");
            document.getElementById("endDate").value = "";
            diffd = "";
        } else {
            if (sdate[0] / 4 == 0) {
                while (sdate[1] < edate[1]) {
                    diffd = diffd + leap[sdate[1]++];
                }
            } else {
                while (sdate[1] < edate[1]) {
                    diffd = diffd + nonleap[sdate[1]++];
                }
            }
            document.getElementById("numberOfDays").value = diffd;
        }
    }

To answer your question, there is no "proper way" to do that. Now if it's just the warning that bothers you, the best way to avoid its proliferation is to wrap the Query.list() method into a DAO :

public class MyDAO {

    @SuppressWarnings("unchecked")
    public static <T> List<T> list(Query q){
        return q.list();
    }
}

This way you get to use the @SuppressWarnings("unchecked") only once.

The method you are looking for is Series.combine. However, it seems some care has to be taken around datatypes. In your example, you would (as I did when testing the answer) naively call

df['col_3'] = df.col_1.combine(df.col_2, func=get_sublist)

However, this throws the error:

ValueError: setting an array element with a sequence.

My best guess is that it seems to expect the result to be of the same type as the series calling the method (df.col_1 here). However, the following works:

df['col_3'] = df.col_1.astype(object).combine(df.col_2, func=get_sublist)

df

   ID   col_1   col_2   col_3
0   1   0   1   [a, b]
1   2   2   4   [c, d, e]
2   3   3   5   [d, e, f]

The basic problem here is that the bash developer(s) that designed/implemented arrays really screwed the pooch. They decided that ${array} was just short hand for ${array[0]}, which was a bad mistake. Especially when you consider that ${array[0]} has no meaning and evaluates to the empty string if the array type is associative.

Assigning an array takes the form array=(value1 ... valueN) where value has the syntax [subscript]=string, thereby assigning a value directly to a particular index in the array. This makes it so there can be two types of arrays, numerically indexed and hash indexed (called associative arrays in bash parlance). It also makes it so that you can create sparse numerically indexed arrays. Leaving off the [subscript]= part is short hand for a numerically indexed array, starting with the ordinal index of 0 and incrementing with each new value in the assignment statement.

Therefore, ${array} should evaluate to the entire array, indexes and all. It should evaluate to the inverse of the assignment statement. Any third year CS major should know that. In that case, this code would work exactly as you might expect it to:

declare -A foo bar
foo=${bar}

Then, passing arrays by value to functions and assigning one array to another would work as the rest of the shell syntax dictates. But because they didn't do this right, the assignment operator = doesn't work for arrays, and arrays can't be passed by value to functions or to subshells or output in general (echo ${array}) without code to chew through it all.

So, if it had been done right, then the following example would show how the usefulness of arrays in bash could be substantially better:

simple=(first=one second=2 third=3)
echo ${simple}

the resulting output should be:

(first=one second=2 third=3)

Then, arrays could use the assignment operator, and be passed by value to functions and even other shell scripts. Easily stored by outputting to a file, and easily loaded from a file into a script.

declare -A foo
read foo <file

Alas, we have been let down by an otherwise superlative bash development team.

As such, to pass an array to a function, there is really only one option, and that is to use the nameref feature:

function funky() {
    local -n ARR

    ARR=$1
    echo "indexes: ${!ARR[@]}"
    echo "values: ${ARR[@]}"
}

declare -A HASH

HASH=([foo]=bar [zoom]=fast)
funky HASH # notice that I'm just passing the word 'HASH' to the function

will result in the following output:

indexes: foo zoom
values: bar fast

Since this is passing by reference, you can also assign to the array in the function. Yes, the array being referenced has to have a global scope, but that shouldn't be too big a deal, considering that this is shell scripting. To pass an associative or sparse indexed array by value to a function requires throwing all the indexes and the values onto the argument list (not too useful if it's a large array) as single strings like this:

funky "${!array[*]}" "${array[*]}"

and then writing a bunch of code inside the function to reassemble the array.

If you want to modify the original array, you can spread and push:

var source = [1, 2, 3];
var range = [5, 6, 7];
var length = source.push(...range);

console.log(source); // [ 1, 2, 3, 5, 6, 7 ]
console.log(length); // 6

If you want to make sure only items of the same type go in the source array (not mixing numbers and strings for example), then use TypeScript.

/**
 * Adds the items of the specified range array to the end of the source array.
 * Use this function to make sure only items of the same type go in the source array.
 */
function addRange<T>(source: T[], range: T[]) {
    source.push(...range);
}

In SQL Server 2012 you can use SUM() with the OVER() clause.

select id,
       somedate,
       somevalue,
       sum(somevalue) over(order by somedate rows unbounded preceding) as runningtotal
from TestTable

SQL Fiddle

remove mysql :

sudo apt -y purge mysql*
sudo apt -y autoremove
sudo rm -rf /etc/mysql
sudo rm -rf /var/lib/mysql*

Restart instance :

sudo shutdown -r now

Kind of a roundabout solution but I just call the API endpoint for my lambda functions when I need to chain them. This allows you to decide while coding if you want them to be asynchronous or not.

In case you don't want to setup a POST request you can just setup a simple GET request with a couple, or none at all, query string parameters for easy event passing.

-- Edit --

See: https://docs.aws.amazon.com/apigateway/api-reference/making-http-requests/

and: http://docs.aws.amazon.com/lambda/latest/dg/with-on-demand-https-example.html

We face this error when permanent generation heap is full and some of us we use command prompt to build our maven project in windows. since we need to increase heap size, we could set our environment variable @ControlPanel/System and Security/System and there you click on Change setting and select Advanced and set Environment variable as below

• Variable-name : MAVEN_OPTS
• Variable-value : -XX:MaxPermSize=128m

The same error appears if you do not use the correct (numeric) format of your data in your data.frame column using mean() function. Therefore, check your data using str(data.frame&column) function to see what data type you have, and convert it to numeric format if necessary. For example, if your data is Character convert it with as.numeric(data.frame$column), or as a factor with as.numeric(as.character(data.frame$column)). The mean function does not work with types other than numeric.

Python calls them lists. You can write a list literal with square brackets and commas:

>>> [6,28,496,8128]
[6, 28, 496, 8128]

Using SSH

git remote add origin ssh://login@IP/path/to/repository

Using HTTP

git remote add origin http://IP/path/to/repository

However having a simple git pull as a deployment process is usually a bad idea and should be avoided in favor of a real deployment script.

UPDATE: I have created a video on sending multipart/form-data requests to explain this better.

Actually, Postman can do this. Here is a screenshot

Newer version : Screenshot captured from postman chrome extension

Another version

Older version

Make sure you check the comment from @maxkoryukov

Be careful with explicit Content-Type header. Better - do not set it's value, the Postman is smart enough to fill this header for you. BUT, if you want to set the Content-Type: multipart/form-data - do not forget about boundary field.

Make Countdown app Xcode 8.1, Swift 3

import UIKit
import Foundation

class ViewController: UIViewController, UITextFieldDelegate {

    var timerCount = 0
    var timerRunning = false

    @IBOutlet weak var timerLabel: UILabel! //ADD Label
    @IBOutlet weak var textField: UITextField! //Add TextField /Enter any number to Countdown

    override func viewDidLoad() {
        super.viewDidLoad()

        //Reset
        timerLabel.text = ""
        if timerCount == 0 {
            timerRunning = false
        }
}

       //Figure out Count method
    func Counting() {
        if timerCount > 0 {
        timerLabel.text = "\(timerCount)"
            timerCount -= 1
        } else {
            timerLabel.text = "GO!"

        }

    }

    //ADD Action Button
    @IBAction func startButton(sender: UIButton) {

        //Figure out timer
        if timerRunning == false {
         _ = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(ViewController.Counting), userInfo: nil, repeats: true)
            timerRunning = true
        }

        //unwrap textField and Display result
        if let countebleNumber = Int(textField.text!) {
            timerCount = countebleNumber
            textField.text = "" //Clean Up TextField
        } else {
            timerCount = 3 //Defoult Number to Countdown if TextField is nil
            textField.text = "" //Clean Up TextField
        }

    }

    //Dismiss keyboard
    func keyboardDismiss() {
        textField.resignFirstResponder()
    }

    //ADD Gesture Recignizer to Dismiss keyboard then view tapped
    @IBAction func viewTapped(_ sender: AnyObject) {
        keyboardDismiss()
    }

    //Dismiss keyboard using Return Key (Done) Button
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        keyboardDismiss()

        return true
    }

}

https://github.com/nikae/CountDown-

There's a Babel plugin that allows you to write conditional statements inside JSX without needing to escape them with JavaScript or write a wrapper class. It's called JSX Control Statements:

<View style={styles.container}>
  <If condition={ this.state == 'news' }>
    <Text>data</Text>
  </If>
</View>

It takes a bit of setting up depending on your Babel configuration, but you don't have to import anything and it has all the advantages of conditional rendering without leaving JSX which leaves your code looking very clean.

Assign primary key in hibernate

Make sure that the attribute is primary key and Auto Incrementable in the database. Then map it into the data class with the annotation with @GeneratedValue annotation using IDENTITY.

@Entity
@Table(name = "client")
data class Client(
        @Id @GeneratedValue(strategy = GenerationType.IDENTITY) @Column(name = "id") private val id: Int? = null
)

GL

Source

or you can simply try this in inline css

<textarea style="::placeholder{color:white}"/>

How about accepting complex roots as solutions?

import math

# User inserting the values of a, b and c

a = float(input("Insert coefficient a: "))
b = float(input("Insert coefficient b: "))
c = float(input("Insert coefficient c: "))

discriminant = b**2 - 4 * a * c

if discriminant >= 0:
    x_1=(-b+math.sqrt(discriminant))/2*a
    x_2=(-b-math.sqrt(discriminant))/2*a
else:
    x_1= complex((-b/(2*a)),math.sqrt(-discriminant)/(2*a))
    x_2= complex((-b/(2*a)),-math.sqrt(-discriminant)/(2*a))

if discriminant > 0:
    print("The function has two distinct real roots: ", x_1, " and ", x_2)
elif discriminant == 0:
    print("The function has one double root: ", x_1)
else:
    print("The function has two complex (conjugate) roots: ", x_1, " and ", x_2)

If you have Homebrew installed, you can do this.

# check the zsh info
brew info zsh

# install zsh
brew install --without-etcdir zsh

# add shell path
sudo vim /etc/shells

# add the following line into the very end of the file(/etc/shells)
/usr/local/bin/zsh

# change default shell
chsh -s /usr/local/bin/zsh

Hope it helps, thanks.

I see only one reason your code to not work, missed quote after file name string:

VBScript:

FSO.GetFile("MyFile.txt[missed_quote_here]).Name = "Hello.txt"

html

<input id="something" onkeyup="key_up(this)" type="text">

script

function key_up(e){
    var enterKey = 13; //Key Code for Enter Key
    if (e.which == enterKey){
        //Do you work here
    }
}

Next time, Please try providing some code.

The below query will display employee name with their respective department name in which that particular employee name is having highest salary.

with T as
(select empname, employee.deptno, salary
from employee
where salary in (select max(salary)
from employee
group by deptno))
select empname, deptname, salary
from T, department
where T.deptno=department.deptno;

I executed the above query successfully on Oracle database.

From what you have in Jason's comments try:

$('a').click(function() //this will apply to all anchor tags
{ 
   $('#area').val('foobar'); //this puts the textarea for the id labeled 'area'
})

Edit- To append to text look at below

$('a').click(function() //this will apply to all anchor tags
{ 
   $('#area').val($('#area').val()+'foobar'); 
})

Add it in two steps, and it's good to make it unsigned too:

public function up()
{
    Schema::create('priorities', function($table) {
        $table->increments('id', true);
        $table->integer('user_id')->unsigned();
        $table->string('priority_name');
        $table->smallInteger('rank');
        $table->text('class');
        $table->timestamps('timecreated');
    });

   Schema::table('priorities', function($table) {
       $table->foreign('user_id')->references('id')->on('users');
   });

}

The corners are actually in .modal-content

So you may try this:

.modal-content {
  background-color: #0480be;
}
.modal-body {
  background-color: #fff;
}

If you change the color of the header or footer, the rounded corners will be drawn over.

if youre main file is located at /Users/feelexit/WebstormProjects/learnnode/node_modules/index.js then express needs to be located at /Users/feelexit/WebstormProjects/learnnode/node_modules/node_modules as node always looks for modules in ./node_modules (and its internal folder) when the path dont start with ./ or / (more info here)

i think you miss placed youre main file in the module folder

var time = 0;
var time_framerate = 1000; //in milliseconds

function animate(timestamp) {
  if(timestamp > time + time_framerate) {
    time = timestamp;    

    //your code
  }

  window.requestAnimationFrame(animate);
}

Check if element's ID is exist

if ($('#id').attr('id') == 'id')_x000D_
{_x000D_
  //OK_x000D_
}

You can mark source directory as a source root like so:

• Right-click on source directory
• Mark Directory As --> Source Root
• File --> Invalidate Caches / Restart... -> Invalidate and Restart

Incidentally, Windows no longer knows how to correctly convert UTC to U.S. local time for certain dates in March/April or October/November of past years. UTC-based timestamps from those dates are now somewhat nonsensical. It would be very icky for the OS to simply refuse to handle any timestamps prior to the U.S. government's latest set of DST rules, so it simply handles some of them wrong. SQL Server refuses to process dates before 1753 because lots of extra special logic would be required to handle them correctly and it doesn't want to handle them wrong.

On the one hand you could use sp_executesql:

exec sp_executesql N'select @rowcount=count(*) from anytable', 
                    N'@rowcount int output', @rowcount output;

On the other hand you could use a temporary table:

declare @result table ([rowcount] int);
insert into @result ([rowcount])
exec (N'select count(*) from anytable');
declare @rowcount int = (select top (1) [rowcount] from @result);

When passing by value:

void func(Object o);

and then calling

func(a);

you will construct an Object on the stack, and within the implementation of func it will be referenced by o. This might still be a shallow copy (the internals of a and o might point to the same data), so a might be changed. However if o is a deep copy of a, then a will not change.

When passing by reference:

void func2(Object& o);

and then calling

func2(a);

you will only be giving a new way to reference a. "a" and "o" are two names for the same object. Changing o inside func2 will make those changes visible to the caller, who knows the object by the name "a".

Adding both android:layout_centerInParent and android:layout_centerVertical work for me to center ImageView both vertical and horizontal:

<ImageView
    ..
    android:layout_centerInParent="true"
    android:layout_centerVertical="true"
    />

if you used the java 7, you could have used the following Date Time Pattern. Seems like this pattern is not supported in the Earlier version of java.

String dateTimeString  = "2010-03-01T00:00:00-08:00";
DateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssXXX");
Date date = df.parse(dateTimeString);

For More information refer to the SimpleDateFormat documentation.

You might find the git_remote_branch tool useful. It offers simple commands for creating, publishing, deleting, tracking & renaming remote branches. One nice feature is that you can ask a grb command to explain what git commands it would execute.

grb explain create my_branch github
# git_remote_branch version 0.3.0

# List of operations to do to create a new remote branch and track it locally:
git push github master:refs/heads/my_branch
git fetch github
git branch --track my_branch github/my_branch
git checkout my_branch

For the lazy like myself:

Kip's answer (from above) in coffeescript, using an "enum", and operating on the same object:

Date.UNIT =
  YEAR: 0
  QUARTER: 1
  MONTH: 2
  WEEK: 3
  DAY: 4
  HOUR: 5
  MINUTE: 6
  SECOND: 7
Date::add = (unit, quantity) ->
  switch unit
    when Date.UNIT.YEAR then @setFullYear(@getFullYear() + quantity)
    when Date.UNIT.QUARTER then @setMonth(@getMonth() + (3 * quantity))
    when Date.UNIT.MONTH then @setMonth(@getMonth() + quantity)
    when Date.UNIT.WEEK then @setDate(@getDate() + (7 * quantity))
    when Date.UNIT.DAY then @setDate(@getDate() + quantity)
    when Date.UNIT.HOUR then @setTime(@getTime() + (3600000 * quantity))
    when Date.UNIT.MINUTE then @setTime(@getTime() + (60000 * quantity))
    when Date.UNIT.SECOND then @setTime(@getTime() + (1000 * quantity))
    else throw new Error "Unrecognized unit provided"
  @ # for chaining

When your code does the following:

1. Checks the current user has permission to do something.
2. Carries out the action that needs the entitlements checked in 1.

You run the risk that the permissions change between 1 and 2 because you can't predict what else will be happening on the system at runtime. Therefore, your code should handle the situation where an UnauthorisedAccessException is thrown even if you have previously checked permissions.

Note that the SecurityManager class is used to check CAS permissions and doesn't actually check with the OS whether the current user has write access to the specified location (through ACLs and ACEs). As such, IsGranted will always return true for locally running applications.

Example (derived from Josh's example):

//1. Provide early notification that the user does not have permission to write.
FileIOPermission writePermission = new FileIOPermission(FileIOPermissionAccess.Write, filename);
if(!SecurityManager.IsGranted(writePermission))
{
    //No permission. 
    //Either throw an exception so this can be handled by a calling function
    //or inform the user that they do not have permission to write to the folder and return.
}

//2. Attempt the action but handle permission changes.
try
{
    using (FileStream fstream = new FileStream(filename, FileMode.Create))
    using (TextWriter writer = new StreamWriter(fstream))
    {
        writer.WriteLine("sometext");
    }
}
catch (UnauthorizedAccessException ex)
{
    //No permission. 
    //Either throw an exception so this can be handled by a calling function
    //or inform the user that they do not have permission to write to the folder and return.
}

It's tricky and not recommended to try to programatically calculate the effective permissions from the folder based on the raw ACLs (which are all that are available through the System.Security.AccessControl classes). Other answers on Stack Overflow and the wider web recommend trying to carry out the action to know whether permission is allowed. This post sums up what's required to implement the permission calculation and should be enough to put you off from doing this.

1. Edit service.bat – Swap two lines so that they appear in following order: if not “%JAVA_HOME%“ == ““ goto got JdkHome if not “%JRE_HOME%“ == ““ goto got JreHome
2. Open cmd and run command service.bat install
3. Open Services and find Apache Tomcat 7.0 Tomcat7. Right click and Properties. Change its startup type to Automatic (with delay).
4. Reboot machine to verify if the service started automatically

You can do one thing.

1. In the AppSettings.config (create one if doesn't exist), create a key value pair.
2. In the Code pull the value and convert it to Int32 and assign it to command.TimeOut.

like:- In appsettings.config ->

<appSettings>    
   <add key="SqlCommandTimeOut" value="240"/>
</appSettings>

In Code ->

command.CommandTimeout = Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SqlCommandTimeOut"]);

That should do it.

Note:- I faced most of the timeout issues when I used SqlHelper class from microsoft application blocks. If you have it in your code and are facing timeout problems its better you use sqlcommand and set its timeout as described above. For all other scenarios sqlhelper should do fine. If your client is ok with waiting a little longer than what sqlhelper class offers you can go ahead and use the above technique.

example:- Use this -

 SqlCommand cmd = new SqlCommand(completequery);

 cmd.CommandTimeout =  Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["SqlCommandTimeOut"]);

 SqlConnection con = new SqlConnection(sqlConnectionString);
 SqlDataAdapter adapter = new SqlDataAdapter();
 con.Open();
 adapter.SelectCommand = new SqlCommand(completequery, con);
 adapter.Fill(ds);
 con.Close();

Instead of

DataSet ds = new DataSet();
ds = SqlHelper.ExecuteDataset(sqlConnectionString, CommandType.Text, completequery);

Update: Also refer to @Triynko answer below. It is important to check that too.

So, what's wrong with checking each element iteratively?

function arraysEqual(arr1, arr2) {
    if(arr1.length !== arr2.length)
        return false;
    for(var i = arr1.length; i--;) {
        if(arr1[i] !== arr2[i])
            return false;
    }

    return true;
}

You can use input text with "list" attribute, which refers to the datalist of values.

<input type="text" name="city" list="cityname">_x000D_
    <datalist id="cityname">_x000D_
      <option value="Boston">_x000D_
      <option value="Cambridge">_x000D_
    </datalist>

This creates a free text input field that also has a drop-down to select predefined choices. Attribution for example and more information: https://www.w3.org/wiki/HTML/Elements/datalist

I believe you also have to use .detach(). I had to convert my Tensor to a numpy array on Colab which uses CUDA and GPU. I did it like the following:

# this is just my embedding matrix which is a Torch tensor object
embedding = learn.model.u_weight

embedding_list = list(range(0, 64382))

input = torch.cuda.LongTensor(embedding_list)
tensor_array = embedding(input)
# the output of the line below is a numpy array
tensor_array.cpu().detach().numpy()