Programs & Examples On #Seekableiterator

If you would like to add vector to itself both popular solutions will fail:

std::vector<std::string> v, orig;

orig.push_back("first");
orig.push_back("second");

// BAD:
v = orig;
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "", "" }

// BAD:
v = orig;
std::copy(v.begin(), v.end(), std::back_inserter(v));
// std::bad_alloc exception is generated

// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
v.insert(v.end(), v.begin(), v.end());
// Now v contains: { "first", "second", "first", "second" }

// GOOD, but I can't guarantee it will work with any STL:
v = orig;
v.reserve(v.size()*2);
std::copy(v.begin(), v.end(), std::back_inserter(v));
// Now v contains: { "first", "second", "first", "second" }

// GOOD (best):
v = orig;
v.insert(v.end(), orig.begin(), orig.end()); // note: we use different vectors here
// Now v contains: { "first", "second", "first", "second" }

For integers you can use Integer.signum()

Returns the signum function of the specified int value. (The return value is -1 if the specified value is negative; 0 if the specified value is zero; and 1 if the specified value is positive.)

You can; the null pointer is implicitly converted into boolean false while non-null pointers are converted into true. From the C++11 standard, section on Boolean Conversions:

A prvalue of arithmetic, unscoped enumeration, pointer, or pointer to member type can be converted to a prvalue of type bool. A zero value, null pointer value, or null member pointer value is converted to false; any other value is converted to true . A prvalue of type std::nullptr_t can be converted to a prvalue of type bool ; the resulting value is false .

As of OpenCV 2.2.0, the package name for the Python bindings is "cv".The old bindings named "opencv" are not maintained any longer. You might have to adjust your code. See http://opencv.willowgarage.com/wiki/PythonInterface.

The official OpenCV installer does not install the Python bindings into your Python directory. There should be a Python2.7 directory inside your OpenCV 2.2.0 installation directory. Copy the whole Lib folder from OpenCV\Python2.7\ to C:\Python27\ and make sure your OpenCV\bin directory is in the Windows DLL search path.

Alternatively use the opencv-python installers at http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv.

I couldnt get previous solution to work but I found out that if I set the iframe scr with for example http:otherdomain.com/page.htm?from=thisdomain.com/thisfolder then I could, in the iframe extract thisdomain.com/thisfolder by using following javascript:

var myString = document.location.toString();
var mySplitResult = myString.split("=");
fromString = mySplitResult[1];

None of the dozens of answers so far worked for me. In my case, I also got the error:

Tuple element name 'Value' is inferred. Please use language version 7.1 or greater to access an element by its inferred name

This appeared next to "Metadata file '.dll' could not be found" errors on building, but it disappeared shortly after, as errors sometimes do as the IDE "catches up".

Double clicking on the error to find it, and removing the offending code, fixes it.

Otherwise, you can, try this in Visual Studio:

Menu Project ? <Project name> Properties ? Build ? button Advanced ? Language Version ? C# <latest minor version> (e.g. "C# 5.0")

And that fixes it too.

It looks like "Metadata file '.dll' could not be found" is often a symptom of some other underlying problems, so if none of the top solutions work for you, check other errors and warnings and try to find the real issue.

we are using like this

     <label for="1">
<div class="options">
<input type="radio" name="mem" id="1" value="1" checked="checked"/>option one
    </div>
</label>
   <label for="2"> 
<div class="options">
 <input type="radio" name="mem" id="2" value="1" checked="checked"/>option two
</div></label>

using

  <label for="1">

tag and catching is with

id=1

hope this helps.

I think this will give you the desired result:

SELECT   home, MAX(datetime)
FROM     my_table
GROUP BY home

BUT if you need other columns as well, just make a join with the original table (check Michael La Voie answer)

Best regards.

You can try this:

$('#studentTypeCheck').is(":checked");

@Balamanigandan your Original Post :- PHP Notice: Trying to get property of non-object error

Your are trying to access the Null Object. From AngularJS your are not passing any Objects instead you are passing the $_GET element. Try by using $_GET['uid'] instead of $objData->token

Here's an updated answer to this old question!

The right way to hash passwords in PHP since 5.5 is with password_hash(), and the right way to verify them is with password_verify(), and this is still true in PHP 8.0. These functions use bcrypt hashes by default, but other stronger algorithms have been added. You can alter the work factor (effectively how "strong" the encryption is) via the password_hash parameters.

However, while it's still plenty strong enough, bcrypt is no longer considered state-of-the-art; a better set of password hash algorithms has arrived called Argon2, with Argon2i, Argon2d, and Argon2id variants. The difference between them (as described here):

Argon2 has one primary variant: Argon2id, and two supplementary variants: Argon2d and Argon2i. Argon2d uses data-depending memory access, which makes it suitable for cryptocurrencies and proof-of-work applications with no threats from side-channel timing attacks. Argon2i uses data-independent memory access, which is preferred for password hashing and password-based key derivation. Argon2id works as Argon2i for the first half of the first iteration over the memory, and as Argon2d for the rest, thus providing both side-channel attack protection and brute-force cost savings due to time-memory tradeoffs.

Argon2i support was added in PHP 7.2, and you request it like this:

$hash = password_hash('mypassword', PASSWORD_ARGON2I);

and Argon2id support was added in PHP 7.3:

$hash = password_hash('mypassword', PASSWORD_ARGON2ID);

No changes are required for verifying passwords since the resulting hash string contains information about what algorithm, salt, and work factors were used when it was created.

Quite separately (and somewhat redundantly), libsodium (added in PHP 7.2) also provides Argon2 hashing via the sodium_crypto_pwhash_str () and sodium_crypto_pwhash_str_verify() functions, which work much the same way as the PHP built-ins. One possible reason for using these is that PHP may sometimes be compiled without libargon2, which makes the Argon2 algorithms unavailable to the password_hash function; PHP 7.2 and higher should always have libsodium enabled, but it may not - but at least there are two ways you can get at that algorithm. Here's how you can create an Argon2id hash with libsodium (even in PHP 7.2, which otherwise lacks Argon2id support)):

$hash = sodium_crypto_pwhash_str(
    'mypassword',
    SODIUM_CRYPTO_PWHASH_OPSLIMIT_INTERACTIVE,
    SODIUM_CRYPTO_PWHASH_MEMLIMIT_INTERACTIVE
);

Note that it doesn't allow you to specify a salt manually; this is part of libsodium's ethos – don't allow users to set params to values that might compromise security – for example there is nothing preventing you from passing an empty salt string to PHP's password_hash function; libsodium doesn't let you do anything so silly!

For me, I got this error by not setting USE_X_FORWARDED_HOST to true. From the docs:

This should only be enabled if a proxy which sets this header is in use.

My hosting service wrote explicitly in their documentation that this setting must be used, and I get this 400 error if I forget it.

I think ImageFont module available in PIL should be helpful in solving text font size problem. Just check what font type and size is appropriate for you and use following function to change font values.

# font = ImageFont.truetype(<font-file>, <font-size>)
# font-file should be present in provided path.
font = ImageFont.truetype("sans-serif.ttf", 16)

So your code will look something similar to:

from PIL import Image
from PIL import ImageFont
from PIL import ImageDraw 

img = Image.open("sample_in.jpg")
draw = ImageDraw.Draw(img)
# font = ImageFont.truetype(<font-file>, <font-size>)
font = ImageFont.truetype("sans-serif.ttf", 16)
# draw.text((x, y),"Sample Text",(r,g,b))
draw.text((0, 0),"Sample Text",(255,255,255),font=font)
img.save('sample-out.jpg')

You might need to put some extra effort to calculate font size. In case you want to change it based on amount of text user has provided in TextArea.

To add text wrapping (Multiline thing) just take a rough idea of how many characters can come in one line, Then you can probably write a pre-pprocessing function for your Text, Which basically finds the character which will be last in each line and converts white space before this character to new-line.

I can confirm that this is not fixable by unregistering and registering the MSCOMCTRL.OCX like before. I have been trying to pin down which update is the source of the problem and it looks like it's either IE10 or IE10 in combination with some other update that's causing the problem. If I can get more time to invest in this I'll update my post but in the meantime uninstalling IE10 resolves the issue.

If you want to reassign an element in an array, you can do the following:

var blah = ['Jan', 'Fed', 'Apr'];

console.log(blah);

function reassign(array, index, newValue) {
    array[index] = newValue;
    return array;
}

reassign(blah, [2], 'Mar');

He is asking about the real difference. When you are talking about undefined behavior you are on the level of guarantee provided by language specification - it's far from reality. To understand the real difference please check this snippet (of course this is UB but it's perfectly defined on your favorite compiler):

#include <stdio.h>

int main()
{
    int i1 = ~0;
    int i2 = i1 >> 1;
    unsigned u1 = ~0;
    unsigned u2 = u1 >> 1;
    printf("int         : %X -> %X\n", i1, i2);
    printf("unsigned int: %X -> %X\n", u1, u2);
}

Check out the link given it has Apache HTTP Server 2.4.2 x86 and x64 Windows Installers http://www.anindya.com/apache-http-server-2-4-2-x86-and-x64-windows-installers/

There could many causes to this problems

What I have experienced are:
1) 127.0.0.1 localhost entry was duplicated in hosts file
2) Apache mod_rewrite was not enabled

Regardless of the cause, backing up your www folder, vhost configuration file (and httpd configuration file) will help. And such process takes a few minutes.

Good luck

Since "$(this).parent().index();" and "$(this).parent('table').index();" don't work for me, I use this code instead:

$('td').click(function(){
   var row_index = $(this).closest("tr").index();
   var col_index = $(this).index();
});

Concerning whether to raise an exception or return None: it depends on the use case. Either can be Pythonic.

Look at Python's dict class for example. x[y] hooks into dict.__getitem__, and it raises a KeyError if key is not present. But the dict.get method returns the second argument (which is defaulted to None) if key is not present. They are both useful.

The most important thing to consider is to document that behaviour in the docstring, and make sure that your get_attr() method does what it says it does.

To address your other questions, use these conventions:

if foo:
    # For testing truthiness

if not foo:
    # For testing falsiness

if foo is None:
    # Testing .. Noneliness ?

if foo is not None:
    # Check explicitly avoids common bugs caused by empty sequences being false

Functions that return True or False should probably have a name that makes this obvious to improve code readability:

def is_running_on_windows():
    return os.name == 'nt'

In Python 3 you can "type-hint" that:

>>> def is_running_on_windows() -> bool:
...     return os.name == 'nt'
... 
>>> is_running_on_windows.__annotations__
{'return': bool}

you can add an edit text of size "0 dip" as the first control in ur xml, so, that will get the focus on render.(make sure its focusable and all...)

I am using Typescript with vue-property-decorator and what happened to me is that my IDE auto-completed "MyComponent.vue.js" instead of "MyComponent.vue". That got me this error.

It seems like the moral of the story is that if you get this error and you are using any kind of single-file component setup, check your imports in the router.

It's worked fine in server

composer install --no-dev

You don't need to do it in the foreach.

Just use count($Contents).

In C++, structs and classes are pretty much the same; the only difference is that where access modifiers (for member variables, methods, and base classes) in classes default to private, access modifiers in structs default to public.

However, in C, a struct is just an aggregate collection of (public) data, and has no other class-like features: no methods, no constructor, no base classes, etc. Although C++ inherited the keyword, it extended the semantics. (This, however, is why things default to public in structs—a struct written like a C struct behaves like one.)

While it's possible to fake some OOP in C—for instance, defining functions which all take a pointer to a struct as their first parameter, or occasionally coercing structs with the same first few fields to be "sub/superclasses"—it's always sort of bolted on, and isn't really part of the language.

If your email address is '[email protected]', try changing the createDirectoryEntry() as below.

XYZ is an optional parameter if it exists in mydomain directory

static DirectoryEntry createDirectoryEntry()
{
    // create and return new LDAP connection with desired settings
    DirectoryEntry ldapConnection = new DirectoryEntry("myname.mydomain.com");
    ldapConnection.Path = "LDAP://OU=Users, OU=XYZ,DC=mydomain,DC=com";
    ldapConnection.AuthenticationType = AuthenticationTypes.Secure;
    return ldapConnection;
}

This will basically check for com -> mydomain -> XYZ -> Users -> abcd

The main function looks as below:

try
{
    username = "Firstname LastName"
    DirectoryEntry myLdapConnection = createDirectoryEntry();
    DirectorySearcher search = new DirectorySearcher(myLdapConnection);
    search.Filter = "(cn=" + username + ")";
    ....    

The key difference in a nutshell is that reset moves the current branch reference, while checkout does not (it moves HEAD).

As the Pro Git book explains under Reset Demystified,

The first thing reset will do is move what HEAD points to. This isn’t the same as changing HEAD itself (which is what checkout does); reset moves the branch that HEAD is pointing to. This means if HEAD is set to the master branch (i.e. you’re currently on the master branch), running git reset 9e5e6a4 will start by making master point to 9e5e6a4. [emphasis added]

See also VonC's answer for a very helpful text and diagram excerpt from the same article, which I won't duplicate here.

Of course there are a lot more details about what effects checkout and reset can have on the index and the working tree, depending on what parameters are used. There can be lots of similarities and differences between the two commands. But as I see it, the most crucial difference is whether they move the tip of the current branch.

Take a look here in order to get started: http://instagram.com/developer/

and then in order to retrieve pictures by tag, look here: http://instagram.com/developer/endpoints/tags/

Getting tags from Instagram doesn't require OAuth, so you can make the calls via these URLs:

GET IMAGES https://api.instagram.com/v1/tags/{tag-name}/media/recent?access_token={TOKEN}

SEARCH https://api.instagram.com/v1/tags/search?q={tag-query}&access_token={TOKEN}

TAG INFO https://api.instagram.com/v1/tags/{tag-name}?access_token={TOKEN}

You can try this code if you are using bootstrap 3:

HTML

<a href="#" id="pop">
    <img id="imageresource" src="http://patyshibuya.com.br/wp-content/uploads/2014/04/04.jpg" style="width: 400px; height: 264px;">
    Click to Enlarge
</a>

<!-- Creates the bootstrap modal where the image will appear -->
<div class="modal fade" id="imagemodal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span></button>
        <h4 class="modal-title" id="myModalLabel">Image preview</h4>
      </div>
      <div class="modal-body">
        <img src="" id="imagepreview" style="width: 400px; height: 264px;" >
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
      </div>
    </div>
  </div>
</div>

JavaScript:

$("#pop").on("click", function() {
   $('#imagepreview').attr('src', $('#imageresource').attr('src')); // here asign the image to the modal when the user click the enlarge link
   $('#imagemodal').modal('show'); // imagemodal is the id attribute assigned to the bootstrap modal, then i use the show function
});

This is the working fiddle. Hope this helps :)

File-> Switch workspace -> newWorkSpace will solve the issue dx.jar

The solution in my situation was similar answer to Charles Burns; and the problem was related to SQL code comments.

I was building (or updating, rather) an already-functioning SSRS report with Oracle datasource. I added some more parameters to the report, tested it in Visual Studio, it works great, so I deployed it to the report server, and then when the report is executed the report on the server I got the error message:

"ORA-01008: not all variables bound"

I tried quite a few different things (TNSNames.ora file installed on the server, Removed single line comments, Validate dataset query mapping). What it came down to was I had to remove a comment block directly after the WHERE keyword. The error message was resolved after moving the comment block after the WHERE CLAUSE conditions. I have other comments in the code also. It was just the one after the WHERE keyword causing the error.

SQL with error: "ORA-01008: not all variables bound"...

WHERE
/*
    OHH.SHIP_DATE BETWEEN TO_DATE('10/1/2018', 'MM/DD/YYYY') AND TO_DATE('10/31/2018', 'MM/DD/YYYY')
    AND OHH.STATUS_CODE<>'DL'
    AND OHH.BILL_COMP_CODE=100
    AND OHH.MASTER_ORDER_NBR IS NULL
*/

    OHH.SHIP_DATE BETWEEN :paramStartDate AND :paramEndDate
    AND OHH.STATUS_CODE<>'DL'
    AND OHH.BILL_COMP_CODE IN (:paramCompany)
    AND LOAD.DEPART_FROM_WHSE_CODE IN (:paramWarehouse) 
    AND OHH.MASTER_ORDER_NBR IS NULL
    AND LOAD.CLASS_CODE IN (:paramClassCode) 
    AND CUST.CUST_CODE || '-' || CUST.CUST_SHIPTO_CODE IN (:paramShipto) 

SQL executes successfully on the report server...

WHERE
    OHH.SHIP_DATE BETWEEN :paramStartDate AND :paramEndDate
    AND OHH.STATUS_CODE<>'DL'
    AND OHH.BILL_COMP_CODE IN (:paramCompany)
    AND LOAD.DEPART_FROM_WHSE_CODE IN (:paramWarehouse) 
    AND OHH.MASTER_ORDER_NBR IS NULL
    AND LOAD.CLASS_CODE IN (:paramClassCode) 
    AND CUST.CUST_CODE || '-' || CUST.CUST_SHIPTO_CODE IN (:paramShipto)   
/*
    OHH.SHIP_DATE BETWEEN TO_DATE('10/1/2018', 'MM/DD/YYYY') AND TO_DATE('10/31/2018', 'MM/DD/YYYY')
    AND OHH.STATUS_CODE<>'DL'
    AND OHH.BILL_COMP_CODE=100
    AND OHH.MASTER_ORDER_NBR IS NULL
*/

Here is what the dataset parameter mapping screen looks like.

Just in case someone is using the Portuguese ABNT keyboard layout The shortcut is

Ctrl + ;

I have a root state which resolves sth. Passing $state as a resolve parameter won't guarantee the availability for $state.params. But using $stateParams will.

var rootState = {
    name: 'root',
    url: '/:stubCompanyId',
    abstract: true,
    ...
};

// case 1:
rootState.resolve = {
    authInit: ['AuthenticationService', '$state', function (AuthenticationService, $state) {
        console.log('rootState.resolve', $state.params);
        return AuthenticationService.init($state.params);
    }]
};
// output:
// rootState.resolve Object {}

// case 2:
rootState.resolve = {
    authInit: ['AuthenticationService', '$stateParams', function (AuthenticationService, $stateParams) {
        console.log('rootState.resolve', $stateParams);
        return AuthenticationService.init($stateParams);
    }]
};
// output:
// rootState.resolve Object {stubCompanyId:...}

Using "angular": "~1.4.0", "angular-ui-router": "~0.2.15"

You can use the:

setBackgroundDrawable(null);

method.And following is the doc:

  /**
    * Set the background to a given Drawable, or remove the background. If the
    * background has padding, this View's padding is set to the background's
    * padding. However, when a background is removed, this View's padding isn't
    * touched. If setting the padding is desired, please use
    * {@link #setPadding(int, int, int, int)}.
    *
    * @param d The Drawable to use as the background, or null to remove the
    *        background
    */

You .push() that value in. Example: array.push(value);

I got the same exception also, but it was previously running fine in another machine. Anyway above solution didn't worked for me. What i did to resolve it?

1. Copy dependencies list into clipboard.
2. enter "npm init" to create fresh new package.json
3. Paste the dependencies again back to package.json
4. run "npm install" again!

Done :) Hope it helps.

I ended up figuring out a (pretty good) solution for this problem!

You can use a TransitionDrawable to accomplish this. For example, in an XML file in the drawable folder you could write something like:

<?xml version="1.0" encoding="UTF-8"?>
<transition xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- The drawables used here can be solid colors, gradients, shapes, images, etc. -->
    <item android:drawable="@drawable/original_state" />
    <item android:drawable="@drawable/new_state" />
</transition>

Then, in your XML for the actual View you would reference this TransitionDrawable in the android:background attribute.

At this point you can initiate the transition in your code on-command by doing:

TransitionDrawable transition = (TransitionDrawable) viewObj.getBackground();
transition.startTransition(transitionTime);

Or run the transition in reverse by calling:

transition.reverseTransition(transitionTime);

See Roman's answer for another solution using the Property Animation API, which wasn't available at the time this answer was originally posted.

you can show one line output then set property Line=0 and show multiple line output then set property Line=1 and more

[self.yourLableName sizeToFit];

It might be easier with vlookup. Try this:

=IFERROR(VLOOKUP(D2,G:H,2,0),"")

The IFERROR() is for no matches, so that it throws "" in such cases.

VLOOKUP's first parameter is the value to 'look for' in the reference table, which is column G and H.

VLOOKUP will thus look for D2 in column G and return the value in the column index 2 (column G has column index 1, H will have column index 2), meaning that the value from column H will be returned.

The last parameter is 0 (or equivalently FALSE) to mean an exact match. That's what you need as opposed to approximate match.

From blubb answer:

You can also directly form the tuple using values from each list

ds = [d1, d2]
d = {}
for k in d1.keys():
  d[k] = (d1[k], d2[k])

This might be useful if you had a specific ordering for your tuples

ds = [d1, d2, d3, d4]
d = {}
for k in d1.keys():
  d[k] = (d3[k], d1[k], d4[k], d2[k]) #if you wanted tuple in order of d3, d1, d4, d2

While submitting form use reset method on form. The reset() method resets the values of all elements in a form.

$('#form-id')[0].reset();

OR 

document.getElementById("form-id").reset();

https://developer.mozilla.org/en-US/docs/Web/API/HTMLFormElement/reset

$("#submit-button").on("click", function(){_x000D_
       //code here_x000D_
       $('#form-id')[0].reset();_x000D_
});

<html>_x000D_
<head>_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>_x000D_
</head>_x000D_
<body>_x000D_
<form id="form-id">_x000D_
  First name:<br>_x000D_
  <input type="text" name="firstname">_x000D_
  <br>_x000D_
  Last name:<br>_x000D_
  <input type="text" name="lastname">_x000D_
  <br><br>_x000D_
  <input id="submit-button" type="submit" value="Submit">_x000D_
</form> _x000D_
</body>_x000D_
</html>

JSON Test has some

try its free and has other features too.

http://www.jsontest.com/

A clean and flexible solution in MS SQL Server 2005/2008 is to create a CLR Agregate function.

You'll find quite a few articles (with code) on google.

It looks like this article walks you through the whole process using C#.

An alternative approach would be:

df1 = sqlContext.createDataFrame(
    [(1, "a", 2.0), (2, "b", 3.0), (3, "c", 3.0)],
    ("x1", "x2", "x3"))

df2 = sqlContext.createDataFrame(
    [(1, "f", -1.0), (2, "b", 0.0)], ("x1", "x2", "x4"))

df = df1.join(df2, ['x1','x2'])
df.show()

which outputs:

+---+---+---+---+
| x1| x2| x3| x4|
+---+---+---+---+
|  2|  b|3.0|0.0|
+---+---+---+---+

With the main advantage being that the columns on which the tables are joined are not duplicated in the output, reducing the risk of encountering errors such as org.apache.spark.sql.AnalysisException: Reference 'x1' is ambiguous, could be: x1#50L, x1#57L.

Whenever the columns in the two tables have different names, (let's say in the example above, df2 has the columns y1, y2 and y4), you could use the following syntax:

df = df1.join(df2.withColumnRenamed('y1','x1').withColumnRenamed('y2','x2'), ['x1','x2'])

@Eric

I was actually hoping to see a C wizard post something really cool, sort of like what I did but less verbose, while still doing it "manually".

Well, I'm no C guru, but here's what I came up with:

unsigned int parseHex(const char * str)
{
    unsigned int val = 0;
    char c;

    while(c = *str++)
    {
        val <<= 4;

        if (c >= '0' && c <= '9')
        {
            val += c & 0x0F;
            continue;
        }

        c &= 0xDF;
        if (c >= 'A' && c <= 'F')
        {
            val += (c & 0x07) + 9;
            continue;
        }

        errno = EINVAL;
        return 0;
    }

    return val;
}

I originally had more bitmasking going on instead of comparisons, but I seriously doubt bitmasking is any faster than comparison on modern hardware.

With WinForms you can use the ErrorProvider in conjunction with the Validating event to handle the validation of user input. The Validating event provides the hook to perform the validation and ErrorProvider gives a nice consistent approach to providing the user with feedback on any error conditions.

http://msdn.microsoft.com/en-us/library/system.windows.forms.errorprovider.aspx

import sys

sys.argv[1:]

will give you a list of arguments (not including the name of the python file)

v5.1 introduces the useful hook useLocation

https://reacttraining.com/blog/react-router-v5-1/#uselocation

import { Switch, useLocation } from 'react-router-dom'

function usePageViews() {
  let location = useLocation()

  useEffect(
    () => {
      ga.send(['pageview', location.pathname])
    },
    [location]
  )
}

function App() {
  usePageViews()
  return <Switch>{/* your routes here */}</Switch>
}

You don't add links to style sheets. They are for describing the style of the page. You would change your mark-up or add JavaScript to navigate when the image is clicked.

Based only on your style you would have:

<a href="home.com" id="logo"></a>

Use a double-negative:

/[^\S\r\n]/

That is, not-not-whitespace (the capital S complements) or not-carriage-return or not-newline. Distributing the outer not (i.e., the complementing ^ in the character class) with De Morgan's law, this is equivalent to “whitespace but not carriage return or newline.” Including both \r and \n in the pattern correctly handles all of Unix (LF), classic Mac OS (CR), and DOS-ish (CR LF) newline conventions.

No need to take my word for it:

#! /usr/bin/env perl

use strict;
use warnings;

use 5.005;  # for qr//

my $ws_not_crlf = qr/[^\S\r\n]/;

for (' ', '\f', '\t', '\r', '\n') {
  my $qq = qq["$_"];
  printf "%-4s => %s\n", $qq,
    (eval $qq) =~ $ws_not_crlf ? "match" : "no match";
}

Output:

" "  => match
"\f" => match
"\t" => match
"\r" => no match
"\n" => no match

Note the exclusion of vertical tab, but this is addressed in v5.18.

Before objecting too harshly, the Perl documentation uses the same technique. A footnote in the “Whitespace” section of perlrecharclass reads

Prior to Perl v5.18, \s did not match the vertical tab. [^\S\cK] (obscurely) matches what \s traditionally did.

The same section of perlrecharclass also suggests other approaches that won’t offend language teachers’ opposition to double-negatives.

Outside locale and Unicode rules or when the /a switch is in effect, “\s matches [\t\n\f\r ] and, starting in Perl v5.18, the vertical tab, \cK.” Discard \r and \n to leave /[\t\f\cK ]/ for matching whitespace but not newline.

If your text is Unicode, use code similar to the sub below to construct a pattern from the table in the aforementioned documentation section.

sub ws_not_nl {
  local($_) = <<'EOTable';
0x0009        CHARACTER TABULATION   h s
0x000a              LINE FEED (LF)    vs
0x000b             LINE TABULATION    vs  [1]
0x000c              FORM FEED (FF)    vs
0x000d        CARRIAGE RETURN (CR)    vs
0x0020                       SPACE   h s
0x0085             NEXT LINE (NEL)    vs  [2]
0x00a0              NO-BREAK SPACE   h s  [2]
0x1680            OGHAM SPACE MARK   h s
0x2000                     EN QUAD   h s
0x2001                     EM QUAD   h s
0x2002                    EN SPACE   h s
0x2003                    EM SPACE   h s
0x2004          THREE-PER-EM SPACE   h s
0x2005           FOUR-PER-EM SPACE   h s
0x2006            SIX-PER-EM SPACE   h s
0x2007                FIGURE SPACE   h s
0x2008           PUNCTUATION SPACE   h s
0x2009                  THIN SPACE   h s
0x200a                  HAIR SPACE   h s
0x2028              LINE SEPARATOR    vs
0x2029         PARAGRAPH SEPARATOR    vs
0x202f       NARROW NO-BREAK SPACE   h s
0x205f   MEDIUM MATHEMATICAL SPACE   h s
0x3000           IDEOGRAPHIC SPACE   h s
EOTable

  my $class;
  while (/^0x([0-9a-f]{4})\s+([A-Z\s]+)/mg) {
    my($hex,$name) = ($1,$2);
    next if $name =~ /\b(?:CR|NL|NEL|SEPARATOR)\b/;
    $class .= "\\N{U+$hex}";
  }

  qr/[$class]/u;
}

Other Applications

The double-negative trick is also handy for matching alphabetic characters too. Remember that \w matches “word characters,” alphabetic characters and digits and underscore. We ugly-Americans sometimes want to write it as, say,

if (/[A-Za-z]+/) { ... }

but a double-negative character-class can respect the locale:

if (/[^\W\d_]+/) { ... }

Expressing “a word character but not digit or underscore” this way is a bit opaque. A POSIX character-class communicates the intent more directly

if (/[[:alpha:]]+/) { ... }

or with a Unicode property as szbalint suggested

if (/\p{Letter}+/) { ... }

I had a very difficult time getting this working one under VS2015 one day. After the initial install everything was working, but I come in this morning and my keyboard shortcuts don't work. Going through Resharper's Environment > Keyboard & Menus didn't work; reinstalling Resharper didn't work. Even deleting every configuration from Resharper's AppData folder didn't work.

So what did work? Going to Visual Studio's Tools > Options > Environment > Keyboard and clicking Reset. After I did that, then Resharper's schemes would take.

Use MySql Workbench's Export and Import functionality. Steps:
1. Select the values you want

E.g. select * from table1; 

2. Click on the Export button and save it as CSV.

3. create a new table using similar columns as the first one

   E.g. create table table2 like table1; 
   

4. select all from the new table

   E.g. select * from table2;  
   

5. Click on Import and select the CSV file you exported in step 2

JSON notation has only a handful of native datatypes (objects, arrays, strings, numbers, booleans, and null), so anything serialized in JSON needs to be expressed as one of these types.

As shown in the json module docs, this conversion can be done automatically by a JSONEncoder and JSONDecoder, but then you would be giving up some other structure you might need (if you convert sets to a list, then you lose the ability to recover regular lists; if you convert sets to a dictionary using dict.fromkeys(s) then you lose the ability to recover dictionaries).

A more sophisticated solution is to build-out a custom type that can coexist with other native JSON types. This lets you store nested structures that include lists, sets, dicts, decimals, datetime objects, etc.:

from json import dumps, loads, JSONEncoder, JSONDecoder
import pickle

class PythonObjectEncoder(JSONEncoder):
    def default(self, obj):
        if isinstance(obj, (list, dict, str, unicode, int, float, bool, type(None))):
            return JSONEncoder.default(self, obj)
        return {'_python_object': pickle.dumps(obj)}

def as_python_object(dct):
    if '_python_object' in dct:
        return pickle.loads(str(dct['_python_object']))
    return dct

Here is a sample session showing that it can handle lists, dicts, and sets:

>>> data = [1,2,3, set(['knights', 'who', 'say', 'ni']), {'key':'value'}, Decimal('3.14')]

>>> j = dumps(data, cls=PythonObjectEncoder)

>>> loads(j, object_hook=as_python_object)
[1, 2, 3, set(['knights', 'say', 'who', 'ni']), {u'key': u'value'}, Decimal('3.14')]

Alternatively, it may be useful to use a more general purpose serialization technique such as YAML, Twisted Jelly, or Python's pickle module. These each support a much greater range of datatypes.

Some js files come from the web or library, they are not written by yourself. The code they get variable like this:

var queryString = document.location.search.substring(1);
var params = PDFViewerApplication.parseQueryString(queryString);
var file = 'file' in params ? params.file : DEFAULT_URL;

This method makes js files unchanged(keep independence), and pass variable correctly!

If you're on OSX/Chrome you can add the self-signed SSL certificate to your system keychain as explained here: http://www.robpeck.com/2010/10/google-chrome-mac-os-x-and-self-signed-ssl-certificates

It's a manual process, but I got it working finally. Just make sure the Common Name (CN) is set to "localhost" (without the port) and after the certificate is added make sure all the Trust options on the certificate are set to "Always Trust". Also make sure you add it to the "System" keychain and not the "login" keychain.

I checked all above answers in practice with my page on iOS (iPhone 6, iOS 10.0.2), but with no success. This is my working solution:

$(window).bind('gesturestart touchmove', function(event) {
    event = event.originalEvent || event;
    if (event.scale !== 1) {
         event.preventDefault();
         document.body.style.transform = 'scale(1)'
    }
});

In my case, I was working on a web api project and although the project was set correctly to full debug, I was still seeing this error every time I attached to the IIS process I was trying to debug. Then I realized the publish profile was set to use the Release configuration. So one more place to check is your publish profile if you're using the 'Publish' feature of your dotnet web api project.

That only means that an undefined column or parameter name was detected. The errror that DB2 gives should point what that may be:

DB2 SQL Error: SQLCODE=-206, SQLSTATE=42703, SQLERRMC=[THE_UNDEFINED_COLUMN_OR_PARAMETER_NAME], DRIVER=4.8.87

Double check your table definition. Maybe you just missed adding something.

I also tried google-ing this problem and saw this:

http://www.coderanch.com/t/515475/JDBC/databases/sql-insert-statement-giving-sqlcode

I prefer this Amazon AWS endpoint:

import requests
ip = requests.get('https://checkip.amazonaws.com').text.strip()

This is basically an implementation of a brilliant suggestion made by Eric Lippert somewhere above.

    public static bool isPrime(int number)
    {
        if (number == 1) return false;
        if (number == 2 || number == 3 || number == 5) return true;
        if (number % 2 == 0 || number % 3 == 0 || number % 5 == 0) return false;

        var boundary = (int)Math.Floor(Math.Sqrt(number));

        // You can do less work by observing that at this point, all primes 
        // other than 2 and 3 leave a remainder of either 1 or 5 when divided by 6. 
        // The other possible remainders have been taken care of.
        int i = 6; // start from 6, since others below have been handled.
        while (i <= boundary)
        {
            if (number % (i + 1) == 0 || number % (i + 5) == 0)
                return false;

            i += 6;
        }

        return true;
    }

unsigned is used when ur value must be positive, no negative value here, if signed for int range -32768 to +32767 if unsigned for int range 0 to 65535

Use count(*)

declare 
   cnt integer;
begin
  SELECT count(*) INTO cnt
  FROM people
  WHERE person_id = my_person_id;

IF cnt > 0 THEN
  -- Do something
END IF;

Edit (for the downvoter who didn't read the statement and others who might be doing something similar)

The solution is only effective because there is a where clause on a column (and the name of the column suggests that its the primary key - so the where clause is highly effective)

Because of that where clause there is no need to use a LIMIT or something else to test the presence of a row that is identified by its primary key. It is an effective way to test this.

postgresql.conf is located in PostgreSQL's data directory. The data directory is configured during the setup and the setting is saved as PGDATA entry in c:\Program Files\PostgreSQL\<version>\pg_env.bat, for example

@ECHO OFF
REM The script sets environment variables helpful for PostgreSQL

@SET PATH="C:\Program Files\PostgreSQL\<version>\bin";%PATH%
@SET PGDATA=D:\PostgreSQL\<version>\data
@SET PGDATABASE=postgres
@SET PGUSER=postgres
@SET PGPORT=5432
@SET PGLOCALEDIR=C:\Program Files\PostgreSQL\<version>\share\locale

Alternatively you can query your database with SHOW config_file; if you are a superuser.

You'll need to install (or enable) the Socket PHP extension: http://www.php.net/manual/en/sockets.installation.php

You can also try running Bash scripts on Windows using BashWin at https://github.com/skanga/BashWin.

Actually, casting doesn't always work. If the object is not an instanceof the class you're casting it to you will get a ClassCastException at runtime.

There are different types of shells. The SSH command execution shell is a non-interactive shell, whereas your normal shell is either a login shell or an interactive shell. Description follows, from man bash:

       A  login  shell  is  one whose first character of argument
       zero is a -, or one started with the --login option.

       An interactive shell is  one  started  without  non-option
       arguments  and  without the -c option whose standard input
       and error are both connected to terminals  (as  determined
       by  isatty(3)), or one started with the -i option.  PS1 is
       set and $- includes i if bash is interactive,  allowing  a
       shell script or a startup file to test this state.

       The  following  paragraphs  describe how bash executes its
       startup files.  If any of the files exist  but  cannot  be
       read,  bash reports an error.  Tildes are expanded in file
       names as described below  under  Tilde  Expansion  in  the
       EXPANSION section.

       When  bash is invoked as an interactive login shell, or as
       a non-interactive shell with the --login option, it  first
       reads and executes commands from the file /etc/profile, if
       that file exists.  After reading that file, it  looks  for
       ~/.bash_profile,  ~/.bash_login,  and  ~/.profile, in that
       order, and reads and executes commands from the first  one
       that  exists  and is readable.  The --noprofile option may
       be used when the shell is started to inhibit  this  behav­
       ior.

       When a login shell exits, bash reads and executes commands
       from the file ~/.bash_logout, if it exists.

       When an interactive shell that is not  a  login  shell  is
       started,  bash reads and executes commands from ~/.bashrc,
       if that file exists.  This may be inhibited by  using  the
       --norc  option.   The --rcfile file option will force bash
       to  read  and  execute  commands  from  file  instead   of
       ~/.bashrc.

       When  bash  is  started  non-interactively, to run a shell
       script, for example, it looks for the variable BASH_ENV in
       the  environment,  expands  its value if it appears there,
       and uses the expanded value as the name of a file to  read
       and  execute.   Bash  behaves  as if the following command
       were executed:
              if [ -n "$BASH_ENV" ]; then . "$BASH_ENV"; fi
       but the value of the PATH variable is not used  to  search
       for the file name.

The display:table family of CSS properties is mostly there so that HTML tables can be defined in terms of them. Because they're so intimately linked to a specific tag structure, they don't see much use beyond that.

If you were going to use these properties in your page, you would need a tag structure that closely mimicked that of tables, even though you weren't actually using the <table> family of tags. A minimal version would be a single container element (display:table), with direct children that can all be represented as rows (display:table-row), which themselves have direct children that can all be represented as cells (display:table-cell). There are other properties that let you mimic other tags in the table family, but they require analogous structures in the HTML. Without this, it's going to be very hard (if not impossible) to make good use of these properties.

I solved the problem by cat'ing all the pems together:

cat cert.pem chain.pem fullchain.pem >all.pem
openssl pkcs12 -export -in all.pem -inkey privkey.pem -out cert_and_key.p12 -name tomcat -CAfile chain.pem -caname root -password MYPASSWORD
keytool -importkeystore -deststorepass MYPASSWORD -destkeypass MYPASSWORD -destkeystore MyDSKeyStore.jks -srckeystore cert_and_key.p12 -srcstoretype PKCS12 -srcstorepass MYPASSWORD -alias tomcat
keytool -import -trustcacerts -alias root -file chain.pem -keystore MyDSKeyStore.jks -storepass MYPASSWORD

(keytool didn't know what to do with a PKCS7 formatted key)

I got all the pems from letsencrypt

If the goal is to style the img after browser has rendered image, you should:

const img = new Image();
img.src = 'path/to/img.jpg';

img.decode().then(() => {
/* set styles */
/* add img to DOM */ 
});

because the browser first loads the compressed version of image, then decodes it, finally paints it. since there is no event for paint you should run your logic after browser has decoded the img tag.

All user installed apks are located in /data/app/, but you can only access this if you are rooted(afaik, you can try without root and if it doesn't work, rooting isn't hard. I suggest you search xda-developers for rooting instructions)

Use Root explorer or ES File Explorer to access /data/app/ (you have to keep going "up" until you reach the root directory /, kind of like C: in windows, before you can see the data directory(folder)). In ES file explorer you must also tick a checkbox in settings to allow going up to the root directory.

When you are in there you will see all your applications apks, though they might be named strangely. Just copy the wanted .apk and paste in the sd card, after that you can copy it to your computer and when you want to install it just open the .apk in a file manager (be sure to have install from unknown sources enabled in android settings). Even if you only want to send over bluetooth I would recommend copying it to the SD first.

PS Note that paid apps probably won't work being copied this way, since they usually check their licence online. PPS Installing an app this way may not link it with google play(you won't see it in my apps and it won't get updates).

Thank you to all the commenters on this page. When I first installed the latest TortoiseSVN I got this error.

I was using the latest version, so decided to downgrade to 1.5.9 (as the rest of my colleagues were using) and this got it to work. Then, once built, my machine was moved onto another subnet and the problem started again.

I went to TortoiseSVN->Settings->Saved Data and cleared the Authentication data. After this it worked fine.

From the spring docs

Spring can be easily integrated into any Java-based web framework. All you need to do is to declare the ContextLoaderListener in your web.xml and use a contextConfigLocation to set which context files to load.

The <context-param>:

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>

<listener>
   <listener-class>
        org.springframework.web.context.ContextLoaderListener
   </listener-class>
</listener> 

You can then use the WebApplicationContext to get a handle on your beans.

WebApplicationContext ctx = WebApplicationContextUtils.getRequiredWebApplicationContext(servlet.getServletContext());
SomeBean someBean = (SomeBean) ctx.getBean("someBean");

See http://static.springsource.org/spring/docs/2.5.x/api/org/springframework/web/context/support/WebApplicationContextUtils.html for more info

Guys let's understand the syntax of it.

1. If class file is present in the Current Dir.

   java -cp . fileName

2. If class file is present within the Dir. Go to the Parent Dir and enter below cmd.

   java -cp . dir1.dir2.dir3.fileName

3. If there is a dependency on external jars then,

   java -cp .:./jarName1:./jarName2 fileName

   Hope this helps.

For some 'Eclipse Marketplace' plugins Uninstall may not work. (Ex: SonarLint v5)

So Try,

Help -> About Eclipse -> Installation details

• search the plugin name in 'Installed Software'

• Select plugin name and Uninstall it

Additional Detail

To fix plugin errors, after the uninstall revert back older version of plugin,

Help -> install new software..

• Get plugin url from Google search and Add it (Example: https://eclipse-uc.sonarlint.org)

• Select and install older versions of the Plugin. This will fix most of the plugin problems.

If you don't want to save any changes and don't want that Save prompt while saving an Excel file using Macro then this piece of code may helpful for you

Sub Auto_Close()

     ThisWorkbook.Saved = True

End Sub

Because the Saved property is set to True, Excel responds as though the workbook has already been saved and no changes have occurred since that last save, so no Save prompt.

I'm not sure how exactly you want the formatting to look like, but you could start with a function like this:

def pretty(d, indent=0):
   for key, value in d.items():
      print('\t' * indent + str(key))
      if isinstance(value, dict):
         pretty(value, indent+1)
      else:
         print('\t' * (indent+1) + str(value))

Also, see the Stack Overflow question How to detect what .NET Framework versions and service packs are installed? which also mentions:

There is an official Microsoft answer to this question at the knowledge base article [How to determine which versions and service pack levels of the Microsoft .NET Framework are installed][2]

Article ID: 318785 - Last Review: November 7, 2008 - Revision: 20.1 How to determine which versions of the .NET Framework are installed and whether service packs have been applied.

Unfortunately, it doesn't appear to work, because the mscorlib.dll version in the 2.0 directory has a 2.0 version, and there is no mscorlib.dll version in either the 3.0 or 3.5 directories even though 3.5 SP1 is installed ... Why would the official Microsoft answer be so misinformed?

It's not pretty, but the way I resign the firstResponder when I don't know what that the responder is:

Create an UITextField, either in IB or programmatically. Make it Hidden. Link it up to your code if you made it in IB. Then, when you want to dismiss the keyboard, you switch the responder to the invisible text field, and immediately resign it:

  [self.invisibleField becomeFirstResponder];
  [self.invisibleField resignFirstResponder];

Building slightly upon the answers here, I've wrapped this process up as a simple Bash script, which could of course be used as a Git alias as well.

The important addition to me is that this prompts me to run unit tests before committing and passes in the current branch name by default.

$ git_push_new_branch.sh

  Have you run your unit tests yet? If so, pass OK or a branch name, and try again

  usage: git_push_new_branch {OK|BRANCH_NAME}

  e.g.

  git_push_new_branch           -> Displays prompt reminding you to run unit tests
  git_push_new_branch OK        -> Pushes the current branch as a new branch to the origin
  git_push_new_branch MYBRANCH  -> Pushes branch MYBRANCH as a new branch to the origin

git_push_new_branch.sh

function show_help()
{
  IT=$(cat <<EOF

  Have you run your unit tests yet? If so, pass OK or a branch name, and try again

  usage: git_push_new_branch {OK|BRANCH_NAME}

  e.g.

  git_push_new_branch.sh           -> Displays prompt reminding you to run unit tests
  git_push_new_branch.sh OK        -> Pushes the current branch as a new branch to the origin
  git_push_new_branch.sh MYBRANCH  -> Pushes branch MYBRANCH as a new branch to the origin

  )
  echo "$IT"
  exit
}

if [ -z "$1" ]
then
  show_help
fi

CURR_BRANCH=$(git rev-parse --abbrev-ref HEAD)
if [ "$1" == "OK" ]
then
  BRANCH=$CURR_BRANCH
else
  BRANCH=${1:-$CURR_BRANCH}
fi

git push -u origin $BRANCH

  for (int i=0; i<6; i++)
  {
     for (int k=0; k<6-i; k++)
     {
        System.out.print(" ");
     }
     for (int j=0; j<i*2+1; j++)
     {
        System.out.print("*");
     }
     System.out.println("");
  }

A .o object file file (also .obj on Windows) contains compiled object code (that is, machine code produced by your C or C++ compiler), together with the names of the functions and other objects the file contains. Object files are processed by the linker to produce the final executable. If your build process has not produced these files, there is probably something wrong with your makefile/project files.

Neither <iostream> nor <iostream.h> are standard C header files. Your code is meant to be C++, where <iostream> is a valid header. Use g++ (and a .cpp file extension) for C++ code.

Alternatively, this program uses mostly constructs that are available in C anyway. It's easy enough to convert the entire program to compile using a C compiler. Simply remove #include <iostream> and using namespace std;, and replace cout << endl; with putchar('\n');... I advise compiling using C99 (eg. gcc -std=c99)

The date_add() function should do what you want. In addition, check out the docs (unofficial, but the official ones are a bit sparse) for the DateTime object, it's much nicer to work with than the procedural functions in PHP.

I've found a more reliable method (at least on Excel 2016 for Mac) is:

Assuming your long list is in column A, and the list of things to be removed from this is in column B, then paste this into all the rows of column C:

= IF(COUNTIF($B$2:$B$99999,A2)>0,"Delete","Keep")

Then just sort the list by column C to find what you have to delete.

Serial is not included with Python. It is a package that you'll need to install separately.

Since you have pip installed you can install serial from the command line with:

pip install pyserial

Or, you can use a Windows installer from here. It looks like you're using Python 3 so click the installer for Python 3.

Then you should be able to import serial as you tried before.

You could use GCJ to compile your Java program into native code.
At some time they even compiled Eclipse into a native version.

nohup sh -x runShellScripts.sh &

I won't repost the other answers because they're all correct, but I'll just add that you can't use switch for more "complicated" statements, eg: to test if a value is "greater than 3", "between 4 and 6", etc. If you need to do something like that, stick to using if statements, or if there's a particularly strong need for switch then it's possible to use it back to front:

switch (true) {
    case ($value > 3) :
        // value is greater than 3
    break;
    case ($value >= 4 && $value <= 6) :
        // value is between 4 and 6
    break;
}

but as I said, I'd personally use an if statement there.

History.

The earliest versions of Unix time had a 32-bit integer incrementing at a rate of 60 Hz, which was the rate of the system clock on the hardware of the early Unix systems. The value 60 Hz still appears in some software interfaces as a result. The epoch also differed from the current value. The first edition Unix Programmer's Manual dated November 3, 1971 defines the Unix time as "the time since 00:00:00, Jan. 1, 1971, measured in sixtieths of a second".

Here's some sample code:

Uri notification = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
MediaPlayer mediaPlayer = MediaPlayer.create(getApplicationContext(), notification);
mediaPlayer.start();

Not sure this will be helpful, but for debugging a service you could always use the following in the OnStart method:

protected override void OnStart(string[] args)
{
     System.Diagnostics.Debugger.Launch();
     ...
}

than you could attach your visual studio to the process and have better debug abilities.

hope this was helpful, good luck

Sure! Setup:

>>> import pandas as pd
>>> from random import randint
>>> df = pd.DataFrame({'A': [randint(1, 9) for x in range(10)],
                   'B': [randint(1, 9)*10 for x in range(10)],
                   'C': [randint(1, 9)*100 for x in range(10)]})
>>> df
   A   B    C
0  9  40  300
1  9  70  700
2  5  70  900
3  8  80  900
4  7  50  200
5  9  30  900
6  2  80  700
7  2  80  400
8  5  80  300
9  7  70  800

We can apply column operations and get boolean Series objects:

>>> df["B"] > 50
0    False
1     True
2     True
3     True
4    False
5    False
6     True
7     True
8     True
9     True
Name: B
>>> (df["B"] > 50) & (df["C"] == 900)
0    False
1    False
2     True
3     True
4    False
5    False
6    False
7    False
8    False
9    False

[Update, to switch to new-style .loc]:

And then we can use these to index into the object. For read access, you can chain indices:

>>> df["A"][(df["B"] > 50) & (df["C"] == 900)]
2    5
3    8
Name: A, dtype: int64

but you can get yourself into trouble because of the difference between a view and a copy doing this for write access. You can use .loc instead:

>>> df.loc[(df["B"] > 50) & (df["C"] == 900), "A"]
2    5
3    8
Name: A, dtype: int64
>>> df.loc[(df["B"] > 50) & (df["C"] == 900), "A"].values
array([5, 8], dtype=int64)
>>> df.loc[(df["B"] > 50) & (df["C"] == 900), "A"] *= 1000
>>> df
      A   B    C
0     9  40  300
1     9  70  700
2  5000  70  900
3  8000  80  900
4     7  50  200
5     9  30  900
6     2  80  700
7     2  80  400
8     5  80  300
9     7  70  800

Note that I accidentally typed == 900 and not != 900, or ~(df["C"] == 900), but I'm too lazy to fix it. Exercise for the reader. :^)

In SQL 2012 you can use the Format() function.

https://technet.microsoft.com/en-us/library/hh213505%28v=sql.110%29.aspx

Skip casting if the column type is (datetime).

Example:

SELECT FORMAT(StartTime,'hh:mm tt') AS StartTime
FROM TableA

Lodash has many isMethods so if you're using Lodash maybe a mixin like this can be useful:

  // Mixin for identifying a Javascript Object

  _.mixin({
      'identify' : function(object) {
        var output;
          var isMethods = ['isArguments', 'isArray', 'isArguments', 'isBoolean', 'isDate', 'isArguments', 
              'isElement', 'isError', 'isFunction', 'isNaN', 'isNull', 'isNumber', 
              'isPlainObject', 'isRegExp', 'isString', 'isTypedArray', 'isUndefined', 'isEmpty', 'isObject']

          this.each(isMethods, function (method) {
              if (this[method](object)) {
                output = method;
                return false;
              }
          }.bind(this));
      return output;
      }
  });

It adds a method to lodash called "identify" which works as follow:

console.log(_.identify('hello friend'));       // isString

Plunker: http://plnkr.co/edit/Zdr0KDtQt76Ul3KTEDSN

Use '-R' to backup stored procedures, but also keep in mind that if you want a consistent dump of your database while its being modified you need to use --single-transaction (if you only backup innodb) or --lock-all-tables (if you also need myisam tables)

To understand sed command, we have to build it step by step.

Here is your original text

user@linux:~$ echo "Here is a String"
Here is a String
user@linux:~$ 

Let's try to remove Here string with substition option in sed

user@linux:~$ echo "Here is a String" | sed 's/Here //'
is a String
user@linux:~$ 

At this point, I believe you would be able to remove String as well

user@linux:~$ echo "Here is a String" | sed 's/String//'
Here is a
user@linux:~$ 

But this is not your desired output.

To combine two sed commands, use -e option

user@linux:~$ echo "Here is a String" | sed -e 's/Here //' -e 's/String//'
is a
user@linux:~$ 

Hope this helps

Installing Aptana Studio in passive mode bypasses the installation of Git for Windows and Node.js.

Aptana_Studio_3_Setup_3.6.1 /passive /norestart

(I am unsure whether Aptana Studio will work properly without those "prerequisites", but it appears to.)

If you want a global installation in a specific directory, the command line is

Aptana_Studio_3_Setup_3.6.1.exe /passive /norestart ALLUSERS=1 APPDIR=c:\apps\AptanaStudio

I'll offer an oddball alternative. Sometimes it's easier to use different encoding, especially if you're dealing with a variety of systems that don't all handle the details of URL encoding the same way. This isn't the most mainstream approach but can come in handy in certain situations.

Rather than URL-encoding the data, you can base64-encode it. The benefit of this is the encoded data is very generic, consisting only of alpha characters and sometimes trailing ='s. Example:

JSON array-of-strings:

["option", "Fred's dog", "Bill & Trudy", "param=3"]

That data, URL-encoded as the data param:

"data=%5B%27option%27%2C+%22Fred%27s+dog%22%2C+%27Bill+%26+Trudy%27%2C+%27param%3D3%27%5D"

Same, base64-encoded:

"data=WyJvcHRpb24iLCAiRnJlZCdzIGRvZyIsICJCaWxsICYgVHJ1ZHkiLCAicGFyYW09MyJd"

The base64 approach can be a bit shorter, but more importantly it's simpler. I often have problems moving URL-encoded data between cURL, web browsers and other clients, usually due to quotes, embedded % signs and so on. Base64 is very neutral because it doesn't use special characters.

While it isn't as elegant as pure CSS, a small bit of javascript can help accomplish this:

<html>
<head>
<style type='text/css'>
    div {
        border: 1px solid #000000;
    } 
</style>
<script type='text/javascript'>

    function expandToWindow(element) {
         var margin = 10; 

         if (element.style.height < window.innerHeight) { 
            element.style.height = window.innerHeight - (2 * margin) 
         }
    }


</script>
</head>
<body onload='expandToWindow(document.getElementById("content"));'>
<div id='content'>Hello World</div>
</body>
</html>

Be careful while using these notations: For eg. if we want to access a function present in the parent of a window. In IE :

window['parent']['func']

is not equivalent to

window.['parent.func']

We may either use:

window['parent']['func'] 

or

window.parent.func 

to access it

this is my approach about this. however I believe that the best solution is the answer from the user username tbd

var i = 0 
var sum = 0
let example = 0
for elements in multiples{
    i = i + 1
    sum = multiples[ (i- 1)]
    example = sum + example
}

From the man git-stash page:

The modifications stashed away by this command can be listed with git stash list, inspected with git stash show

show [<stash>]
       Show the changes recorded in the stash as a diff between the stashed state and
       its original parent. When no <stash> is given, shows the latest one. By default,
       the command shows the diffstat, but it will accept any format known to git diff
       (e.g., git stash show -p stash@{1} to view the second most recent stash in patch
       form).

To list the stashed modifications

git stash list

To show files changed in the last stash

git stash show

So, to view the content of the most recent stash, run

git stash show -p

To view the content of an arbitrary stash, run something like

git stash show -p stash@{1}

Let's say you have an associative array like this:

$a = array(
    "one" => 1,
    "two" => 2,
    "three" => 3,
    "seventeen" => array('x'=>123)
);

In the first iteration : $key="one" and $value=1.

Sometimes you need this key ,if you want only the value , you can avoid using it.

In the last iteration : $key='seventeen' and $value = array('x'=>123) so to get value of the first element in this array value, you need a key, x in this case: $value['x'] =123.

Always use new in C++. If you need a block of untyped memory, you can use operator new directly:

void *p = operator new(size);
   ...
operator delete(p);

It is because it did not find sql connector. try:

pip install mysqlclient

According to Apple documentation of NSDate compare:

Returns an NSComparisonResult value that indicates the temporal ordering of the receiver and another given date.

- (NSComparisonResult)compare:(NSDate *)anotherDate

Parameters anotherDate

The date with which to compare the receiver. This value must not be nil. If the value is nil, the behavior is undefined and may change in future versions of Mac OS X.

Return Value

If:

The receiver and anotherDate are exactly equal to each other, NSOrderedSame

The receiver is later in time than anotherDate, NSOrderedDescending

The receiver is earlier in time than anotherDate, NSOrderedAscending

In other words:

if ([date1 compare:date2] == NSOrderedSame) ...

Note that it might be easier in your particular case to read and write this :

if ([date2 isEqualToDate:date2]) ...

See Apple Documentation about this one.

As Brad Wilson states in his answer here:

ModelState.IsValid tells you if any model errors have been added to ModelState.

The default model binder will add some errors for basic type conversion issues (for example, passing a non-number for something which is an "int"). You can populate ModelState more fully based on whatever validation system you're using.

Try using :-

if (!ModelState.IsValid)
{
    var errors = ModelState.SelectMany(x => x.Value.Errors.Select(z => z.Exception));

    // Breakpoint, Log or examine the list with Exceptions.
}

If it helps catching you the error. Courtesy this and this

Efficient can mean throughput or latency.

For throughout, see the answer by Anders Cedronius, it’s a good one.

For lower latency, I would recommend this code:

uint32_t reverseBits( uint32_t x )
{
#if defined(__arm__) || defined(__aarch64__)
    __asm__( "rbit %0, %1" : "=r" ( x ) : "r" ( x ) );
    return x;
#endif
    // Flip pairwise
    x = ( ( x & 0x55555555 ) << 1 ) | ( ( x & 0xAAAAAAAA ) >> 1 );
    // Flip pairs
    x = ( ( x & 0x33333333 ) << 2 ) | ( ( x & 0xCCCCCCCC ) >> 2 );
    // Flip nibbles
    x = ( ( x & 0x0F0F0F0F ) << 4 ) | ( ( x & 0xF0F0F0F0 ) >> 4 );

    // Flip bytes. CPUs have an instruction for that, pretty fast one.
#ifdef _MSC_VER
    return _byteswap_ulong( x );
#elif defined(__INTEL_COMPILER)
    return (uint32_t)_bswap( (int)x );
#else
    // Assuming gcc or clang
    return __builtin_bswap32( x );
#endif
}

Compilers output: https://godbolt.org/z/5ehd89

There's good answers in here. I'm just adding mine since I ran into the same error but it turned out to be a completely different problem. (Maybe on the surface the same, but a different root cause.)

For me the error happened for the following field:

@Column(nullable = false, columnDefinition = "VARCHAR(255)")
private URI consulUri;

This ends up being stored in the database as a binary serialization of the URI class. This didn't raise any flags with unit testing (using H2) or CI/integration testing (using MariaDB4j), it blew up in our production-like setup. (Though, once the problem was understood, it was easy enough to see the wrong value in the MariaDB4j instance; it just didn't blow up the test.) The solution was to build a custom type mapper:

package redacted;

import javax.persistence.AttributeConverter;
import java.net.URI;
import java.net.URISyntaxException;

import static java.lang.String.format;

public class UriConverter implements AttributeConverter<URI, String> {
    @Override
    public String convertToDatabaseColumn(URI attribute) {
        return attribute.toString();
    }

    @Override
    public URI convertToEntityAttribute(String field) {
        try {
            return new URI(field);
        }
        catch (URISyntaxException e) {
            throw new RuntimeException(format("could not convert database field to URI: %s", field));
        }
    }
}

Used as follows:

@Column(nullable = false, columnDefinition = "VARCHAR(255)")
@Convert(converter = UriConverter.class)
private URI consulUri;

As far as Hibernate is involved, it seems it has a bunch of provided type mappers, including for java.net.URL, but not for java.net.URI (which is what we needed here).

hello bro this is a way to read the string in the exact line using this code

hope this could help you !

#include <iostream>
#include <fstream>

using namespace std;


int main (){


    string text[1];
    int lineno ;
    ifstream file("text.txt");
    cout << "tell me which line of the file you want : " ;
    cin >> lineno ; 



    for (int i = 0; i < lineno ; i++)
    {
        
        getline(file , text[0]);

    }   

    cout << "\nthis is the text in which line you want befor  :: " << text[0] << endl ;
    system("pause");

    return 0;
}

Good luck !

Other answers indicate perfectly well that --no-ff results in a merge commit. This retains historical information about the feature branch which is useful since feature branches are regularly cleaned up and deleted.

This answer may provide context for when to use or not to use --no-ff.

Merging from feature into the main branch: use --no-ff

Worked example:

$ git checkout -b NewFeature
[work...work...work]
$ git commit -am  "New feature complete!"
$ git checkout main
$ git merge --no-ff NewFeature
$ git push origin main
$ git branch -d NewFeature

Merging changes from main into feature branch: leave off --no-ff

Worked example:

$ git checkout -b NewFeature
[work...work...work]
[New changes made for HotFix in the main branch! Lets get them...]
$ git commit -am  "New feature in progress"
$ git pull origin main
[shortcut for "git fetch origin main", "git merge origin main"]

Well, you can always try WHERE textcolumn LIKE "%SUBSTRING%" - but this is guaranteed to be pretty slow, as your query can't do an index match because you are looking for characters on the left side.

It depends on the field type - a textarea usually won't be saved as VARCHAR, but rather as (a kind of) TEXT field, so you can use the MATCH AGAINST operator.

To get the columns that don't match, simply put a NOT in front of the like: WHERE textcolumn NOT LIKE "%SUBSTRING%".

Whether the search is case-sensitive or not depends on how you stock the data, especially what COLLATION you use. By default, the search will be case-insensitive.

Updated answer to reflect question update:

I say that doing a WHERE field LIKE "%value%" is slower than WHERE field LIKE "value%" if the column field has an index, but this is still considerably faster than getting all values and having your application filter. Both scenario's:

1/ If you do SELECT field FROM table WHERE field LIKE "%value%", MySQL will scan the entire table, and only send the fields containing "value".

2/ If you do SELECT field FROM table and then have your application (in your case PHP) filter only the rows with "value" in it, MySQL will also scan the entire table, but send all the fields to PHP, which then has to do additional work. This is much slower than case #1.

Solution: Please do use the WHERE clause, and use EXPLAIN to see the performance.

One more option to use (Swift 3 and iOS 10+):

class DocumentEventsTableViewController: UITableViewController, UITableViewDataSourcePrefetching {

     var currentPage: Int = 1
     let pageSize: Int = 10 // num of items in one page

     override func viewDidLoad() {
         super.viewDidLoad()

         self.tableView.prefetchDataSource = self
     }

     func tableView(_ tableView: UITableView, prefetchRowsAt indexPaths: [IndexPath]) {
         let upcomingRows = indexPaths.map { $0.row }

         if let maxIndex = upcomingRows.max() {

            let nextPage: Int = Int(ceil(Double(maxIndex) / Double(pageSize))) + 1

            if nextPage > currentPage {
                 // Your function, which attempts to load respective page from the local database
                 loadLocalData(page: nextPage)

                 // Your function, which makes a network request to fetch the respective page of data from the network
                 startLoadingDataFromNetwork(page: nextPage) 

                 currentPage = nextPage
             }
         }
     }
 }

For rather small pages (~ 10 items) you might want to manually add data for pages 1 and 2 because nextPage might be somewhere about 1-2 until the table has a few items to be scrolled well. But it will work great for all next pages.

So notice variables are on the stack, the values they refer to are on the heap. So having variables is not too bad but yes they do create references to other entities. However in the simple case you describe it's not really any consequence. If it is never read again and within a contained scope, the compiler will probably strip it out before runtime. Even if it didn't the garbage collector will be able to safely remove it after the stack squashes. If you are running into issues where you have too many stack variables, it's usually because you have really deep stacks. The amount of stack space needed per thread is a better place to adjust than to make your code unreadable. The setting to null is also no longer needed

This won't directly solve your problem as you want to switch on your own user-defined types, but for the benefit of others who only want to switch on built-in types, you can use the TypeCode enumeration:

switch (Type.GetTypeCode(node.GetType()))
{
    case TypeCode.Decimal:
        // Handle Decimal
        break;

    case TypeCode.Int32:
        // Handle Int32
        break;
     ...
}

It should be enough to do:

$this->validate($request, [
    'password' => 'sometimes,min:6,confirmed,required_with:password_confirmed',
]);

Make password optional, but if present requires a password_confirmation that matches, also make password required only if password_confirmed is present

Based on all the info on the post, I created a little script to make the whole process easy.

@ECHO OFF
netstat -aon |find /i "listening"

SET killport=
SET /P killport=Enter port: 
IF "%killport%"=="" GOTO Kill

netstat -aon |find /i "listening" | find "%killport%"

:Kill
SET killpid=
SET /P killpid=Enter PID to kill: 
IF "%killpid%"=="" GOTO Error

ECHO Killing %killpid%!
taskkill /F /PID %killpid%

GOTO End
:Error
ECHO Nothing to kill! Bye bye!!
:End

pause

pFile = fopen("file", "r");
fseek (pFile, 0, SEEK_END);
size=ftell (pFile);
if (size) {
  fseek(pFile, 0, SEEK_SET);
  do something...
}

fclose(pFile)

It will already work, as David pointed out!

>>> def machineEpsilon(func=float):
...     machine_epsilon = func(1)
...     while func(1)+func(machine_epsilon) != func(1):
...         machine_epsilon_last = machine_epsilon
...         machine_epsilon = func(machine_epsilon) / func(2)
...     return machine_epsilon_last
... 
>>> machineEpsilon(float)
2.220446049250313e-16
>>> import numpy
>>> machineEpsilon(numpy.float64)
2.2204460492503131e-16
>>> machineEpsilon(numpy.float32)
1.1920929e-07

I got this error after change a loop in my program, let`s see:

for ...
  for ... 
     x_batch.append(one_hot(int_word, vocab_size))
     y_batch.append(one_hot(int_nb, vocab_size, value))
  ...
  ...
  if ...
        x_batch = np.asarray(x_batch)
        y_batch = np.asarray(y_batch)
...

In fact, I was reusing the variable and forgot to reset them inside the external loop, like the comment of John Lyon:

for ...
  x_batch = []
  y_batch = []
  for ... 
     x_batch.append(one_hot(int_word, vocab_size))
     y_batch.append(one_hot(int_nb, vocab_size, value))
  ...
  ...
  if ...
        x_batch = np.asarray(x_batch)
        y_batch = np.asarray(y_batch)
...

Then, check if you are using np.asarray() or something like that.

According to PostgreSQL documentation (4.1.2.1. String Constants):

 To include a single-quote character within a string constant, write two 
 adjacent single quotes, e.g. 'Dianne''s horse'.

See also the standard_conforming_strings parameter, which controls whether escaping with backslashes works.

Solutions:

Solution A:

1. Download http://www.servlets.com/cos/index.html
2. Invoke getParameters() on com.oreilly.servlet.MultipartRequest

Solution B:

1. Download http://jakarta.Apache.org/commons/fileupload/
2. Invoke readHeaders() in org.apache.commons.fileupload.MultipartStream

Solution C:

1. Download http://users.boone.net/wbrameld/multipartformdata/
2. Invoke getParameter on com.bigfoot.bugar.servlet.http.MultipartFormData

Solution D:

Use Struts. Struts 1.1 handles this automatically.

Reference: http://www.jguru.com/faq/view.jsp?EID=1045507

I should probably turn this into a blog post, but here's pretty solid example.

The comments should explain things pretty well, but let me know if you have questions.

And here's the fiddle to play with: http://jsfiddle.net/Af9Jt/2/

var Draggable = React.createClass({
  getDefaultProps: function () {
    return {
      // allow the initial position to be passed in as a prop
      initialPos: {x: 0, y: 0}
    }
  },
  getInitialState: function () {
    return {
      pos: this.props.initialPos,
      dragging: false,
      rel: null // position relative to the cursor
    }
  },
  // we could get away with not having this (and just having the listeners on
  // our div), but then the experience would be possibly be janky. If there's
  // anything w/ a higher z-index that gets in the way, then you're toast,
  // etc.
  componentDidUpdate: function (props, state) {
    if (this.state.dragging && !state.dragging) {
      document.addEventListener('mousemove', this.onMouseMove)
      document.addEventListener('mouseup', this.onMouseUp)
    } else if (!this.state.dragging && state.dragging) {
      document.removeEventListener('mousemove', this.onMouseMove)
      document.removeEventListener('mouseup', this.onMouseUp)
    }
  },

  // calculate relative position to the mouse and set dragging=true
  onMouseDown: function (e) {
    // only left mouse button
    if (e.button !== 0) return
    var pos = $(this.getDOMNode()).offset()
    this.setState({
      dragging: true,
      rel: {
        x: e.pageX - pos.left,
        y: e.pageY - pos.top
      }
    })
    e.stopPropagation()
    e.preventDefault()
  },
  onMouseUp: function (e) {
    this.setState({dragging: false})
    e.stopPropagation()
    e.preventDefault()
  },
  onMouseMove: function (e) {
    if (!this.state.dragging) return
    this.setState({
      pos: {
        x: e.pageX - this.state.rel.x,
        y: e.pageY - this.state.rel.y
      }
    })
    e.stopPropagation()
    e.preventDefault()
  },
  render: function () {
    // transferPropsTo will merge style & other props passed into our
    // component to also be on the child DIV.
    return this.transferPropsTo(React.DOM.div({
      onMouseDown: this.onMouseDown,
      style: {
        left: this.state.pos.x + 'px',
        top: this.state.pos.y + 'px'
      }
    }, this.props.children))
  }
})

Thoughts on state ownership, etc.

"Who should own what state" is an important question to answer, right from the start. In the case of a "draggable" component, I could see a few different scenarios.

Scenario 1

the parent should own the current position of the draggable. In this case, the draggable would still own the "am I dragging" state, but would call this.props.onChange(x, y) whenever a mousemove event occurs.

Scenario 2

the parent only needs to own the "non-moving position", and so the draggable would own it's "dragging position" but onmouseup it would call this.props.onChange(x, y) and defer the final decision to the parent. If the parent doesn't like where the draggable ended up, it would just not update it's state, and the draggable would "snap back" to it's initial position before dragging.

Mixin or component?

@ssorallen pointed out that, because "draggable" is more an attribute than a thing in itself, it might serve better as a mixin. My experience with mixins is limited, so I haven't seen how they might help or get in the way in complicated situations. This might well be the best option.

I don't know what the .tex extension on your file means. If we are saying that it is any file with any extension you have several methods of reading it.

I have to assume you are using windows because you have mentioned notepad++.

1. Use notepad++. Right click on the file and choose "edit with notepad++"

2. Use notepad Change the filename extension to .txt and double click the file.

3. Use command prompt. Open the folder that your file is in. Hold down shift and right click. (not on the file, but in the folder that the file is in.) Choose "open command window here" from the command prompt type: "type filename.tex"

If these don't work, I would need more detail as to how they are not working. Errors that you may be getting or what you may expect to be in the file might help.

I like Gabriel answer, but i changed it to be flexible. You can send bar-length to the function and get your progress bar with any length that you want. And you can't have a progress bar with zero or negative length. Also, you can use this function like Gabriel answer (Look at the Example #2).

import sys
import time

def ProgressBar(Total, Progress, BarLength=20, ProgressIcon="#", BarIcon="-"):
    try:
        # You can't have a progress bar with zero or negative length.
        if BarLength <1:
            BarLength = 20
        # Use status variable for going to the next line after progress completion.
        Status = ""
        # Calcuting progress between 0 and 1 for percentage.
        Progress = float(Progress) / float(Total)
        # Doing this conditions at final progressing.
        if Progress >= 1.:
            Progress = 1
            Status = "\r\n"    # Going to the next line
        # Calculating how many places should be filled
        Block = int(round(BarLength * Progress))
        # Show this
        Bar = "[{}] {:.0f}% {}".format(ProgressIcon * Block + BarIcon * (BarLength - Block), round(Progress * 100, 0), Status)
        return Bar
    except:
        return "ERROR"

def ShowBar(Bar):
    sys.stdout.write(Bar)
    sys.stdout.flush()

if __name__ == '__main__':
    print("This is a simple progress bar.\n")

    # Example #1:
    print('Example #1')
    Runs = 10
    for i in range(Runs + 1):
        progressBar = "\rProgress: " + ProgressBar(10, i, Runs)
        ShowBar(progressBar)
        time.sleep(1)

    # Example #2:
    print('\nExample #2')
    Runs = 10
    for i in range(Runs + 1):
        progressBar = "\rProgress: " + ProgressBar(10, i, 20, '|', '.')
        ShowBar(progressBar)
        time.sleep(1)

    print('\nDone.')

# Example #2:
Runs = 10
for i in range(Runs + 1):
    ProgressBar(10, i)
    time.sleep(1)

Result:

This is a simple progress bar.

Example #1

Progress: [###-------] 30%

Example #2

Progress: [||||||||||||........] 60%

Done.

Just type the code and save it in .cpp format. then try "gcc filename.cpp" . This will create the object file. then try "./a.out" (This is the default object file name). If you want to know about gcc you can always try "man gcc"

If the above solutions did not work for you so -

Could be that you did not install C++ compiler packages properly, flow this: (Instructions for Win7, 32bit/64bit)

1. Make sure you install properly one or more of the supporting C++ compiler packages:

   • Eclipse CDT plugin (Installers page) (Installer guide)
   • MinGW package (Install Page)
   • Cygwin package (Install page)

   (I installed MinGW (HowTo Install Videos can be found on YouTube))
   

   In case you choose to install MinGW packages:

   • Download MinGW installer from the Install Page above

   • Run MinGW installer and make sure to choose the following packages:

     - mingw-developer-toolkit
     - mingw32-base
     - mingw32-gcc-g++
     - msys-base
     

   • Add MinGW and MSYS bin paths to your PATH environment variable , if you didn't change the default installation folders you should add:

   C:\MinGW\msys\1.0\bin;C:\MinGW\bin;

   • Logoff and log back in for making sure Environment vars kicked in
     

2. Create a new C++ project in eclipse:

   • New -> C++ Projects
   • Choose Project type: Executables -> Hello World C++ project
     (Now on the right, under Toolchains you shall see MinGW GCC)
   • Select MinGW GCC from the Toolchains list
   • Hit Finish

3. In you Hello World Project you shall see + src folder, and + Includes (If so you are probably good to go).

4. Build project
5. Run it!

Neither main() or void main() are standard C. The former is allowed as it has an implicit int return value, making it the same as int main(). The purpose of main's return value is to return an exit status to the operating system.

In standard C, the only valid signatures for main are:

int main(void)

and

int main(int argc, char **argv)

The form you're using: int main() is an old style declaration that indicates main takes an unspecified number of arguments. Don't use it - choose one of those above.

You can double click directly on the .cs file representing your form in the Solution Explorer :

This will open Form1.cs [Design], which contains the drag&drop controls.

If you are directly in the code behind (The file named Form1.cs, without "[Design]"), you can press Shift + F7 (or only F7 depending on the project type) instead to open it.

From the design view, you can switch back to the Code Behind by pressing F7.

Building on @Pvl's answer, you can include type safety on your returned value as well if you use overrides:

function dig<
  T,
  K1 extends keyof T
  >(obj: T, key1: K1): T[K1];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1]
  >(obj: T, key1: K1, key2: K2): T[K1][K2];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2]
  >(obj: T, key1: K1, key2: K2, key3: K3): T[K1][K2][K3];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4): T[K1][K2][K3][K4];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2: K2, key3: K3, key4: K4, key5: K5): T[K1][K2][K3][K4][K5];

function dig<
  T,
  K1 extends keyof T,
  K2 extends keyof T[K1],
  K3 extends keyof T[K1][K2],
  K4 extends keyof T[K1][K2][K3],
  K5 extends keyof T[K1][K2][K3][K4]
  >(obj: T, key1: K1, key2?: K2, key3?: K3, key4?: K4, key5?: K5):
  T[K1] |
  T[K1][K2] |
  T[K1][K2][K3] |
  T[K1][K2][K3][K4] |
  T[K1][K2][K3][K4][K5] {
    let value: any = obj && obj[key1];

    if (key2) {
      value = value && value[key2];
    }

    if (key3) {
      value = value && value[key3];
    }

    if (key4) {
      value = value && value[key4];
    }

    if (key5) {
      value = value && value[key5];
    }

    return value;
}

Example on playground.

This is due to staticmethod being a descriptor and requires a class-level attribute fetch to exercise the descriptor protocol and get the true callable.

From the source code:

It can be called either on the class (e.g. C.f()) or on an instance (e.g. C().f()); the instance is ignored except for its class.

But not directly from inside the class while it is being defined.

But as one commenter mentioned, this is not really a "Pythonic" design at all. Just use a module level function instead.

A simple way is changing to required sdk in some android project the number of

compileSdkVersion

in build.gradle file and you can install with the manager

First of all i say that you should google this as it is defined in detail in many places

Local
These variables only exist inside the specific function that creates them. They are unknown to other functions and to the main program. As such, they are normally implemented using a stack. Local variables cease to exist once the function that created them is completed. They are recreated each time a function is executed or called.

Global
These variables can be accessed (ie known) by any function comprising the program. They are implemented by associating memory locations with variable names. They do not get recreated if the function is recalled.

/* Demonstrating Global variables  */
    #include <stdio.h>
    int add_numbers( void );                /* ANSI function prototype */

    /* These are global variables and can be accessed by functions from this point on */
    int  value1, value2, value3;

    int add_numbers( void )
    {
        auto int result;
        result = value1 + value2 + value3;
        return result;
    }

    main()
    {
        auto int result;
        value1 = 10;
        value2 = 20;
        value3 = 30;        
        result = add_numbers();
        printf("The sum of %d + %d + %d is %d\n",
            value1, value2, value3, final_result);
    }


    Sample Program Output
    The sum of 10 + 20 + 30 is 60

The scope of global variables can be restricted by carefully placing the declaration. They are visible from the declaration until the end of the current source file.

#include <stdio.h>
void no_access( void ); /* ANSI function prototype */
void all_access( void );

static int n2;      /* n2 is known from this point onwards */

void no_access( void )
{
    n1 = 10;        /* illegal, n1 not yet known */
    n2 = 5;         /* valid */
}

static int n1;      /* n1 is known from this point onwards */

void all_access( void )
{
    n1 = 10;        /* valid */
    n2 = 3;         /* valid */
}

Static:
Static object is an object that persists from the time it's constructed until the end of the program. So, stack and heap objects are excluded. But global objects, objects at namespace scope, objects declared static inside classes/functions, and objects declared at file scope are included in static objects. Static objects are destroyed when the program stops running.
I suggest you to see this tutorial list

AUTO:
C, C++

(Called automatic variables.)

All variables declared within a block of code are automatic by default, but this can be made explicit with the auto keyword.[note 1] An uninitialized automatic variable has an undefined value until it is assigned a valid value of its type.[1]

Using the storage class register instead of auto is a hint to the compiler to cache the variable in a processor register. Other than not allowing the referencing operator (&) to be used on the variable or any of its subcomponents, the compiler is free to ignore the hint.

In C++, the constructor of automatic variables is called when the execution reaches the place of declaration. The destructor is called when it reaches the end of the given program block (program blocks are surrounded by curly brackets). This feature is often used to manage resource allocation and deallocation, like opening and then automatically closing files or freeing up memory.SEE WIKIPEDIA

- Abstract class is one which can't be instantiated, i.e. its object cannot be created.

- Abstract method are method's declaration without its definition.

- A Non-abstract class can only have Non-abstract methods.

- An Abstract class can have both the Non-abstract as well as Abstract methods.

- If the Class has an Abstract method then the class must also be Abstract.

- An Abstract method must be implemented by the very first Non-Abstract sub-class.

- Abstract class in Design patterns are used to encapsulate the behaviors that keeps changing.

Just adding a point to the whole discussion as to why this warning comes up (It wasn't clear to me before). The reason one gets this is as mentioned before is because 'a' in this case is a vector and the inequality 'a>0' produces another vector of TRUE and FALSE (where 'a' is >0 or not).

If you would like to instead test if any value of 'a>0', you can use functions - 'any' or 'all'

Best

Simple code for spacing

let layout = collectionView.collectionViewLayout as! UICollectionViewFlowLayout
layout.minimumInteritemSpacing = 10 // Some float value

So, if you are using flask_restful Package for API's returning 201 would becomes like

def bla(*args, **kwargs):
    ...
    return data, 201

where data should be any hashable/ JsonSerialiable value, like dict, string.

This was helpful for me:

    jQuery('button').click( function(e) {
    jQuery('.in').collapse('hide');
});

It's collapsed already open section. Thnks to GrafiCode Studio

For those who use Gradle instead of Maven, add this to the dependencies in your build file:

compile('javax.xml.bind:jaxb-api:2.3.0')

List is an interface, not a concrete class.
An interface is just a set of functions that a class can implement; it doesn't make any sense to instantiate an interface.

ArrayList is a concrete class that happens to implement this interface and all of the methods in it.

{% if profile.user.first_name %} works (assuming you also don't want to accept '').

if in Python in general treats None, False, '', [], {}, ... all as false.

A TINYINT is an 8-bit integer value, a BIT field can store between 1 bit, BIT(1), and 64 bits, BIT(64). For a boolean values, BIT(1) is pretty common.

A good rule of thumb: use the built-in help system in Python. Example below...

jdoe@server:~$ python
Python 2.7.3 (default, Aug  1 2012, 05:14:39) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import memcache
>>> dir()
['__builtins__', '__doc__', '__name__', '__package__', 'memcache']
>>> help(memcache)

------------------------------------------
NAME
    memcache - client module for memcached (memory cache daemon)

FILE
    /usr/lib/python2.7/dist-packages/memcache.py

MODULE DOCS
    http://docs.python.org/library/memcache

DESCRIPTION
    Overview
    ========

    See U{the MemCached homepage<http://www.danga.com/memcached>} for more about memcached.

    Usage summary
    =============
...
------------------------------------------

I hate adding function-named classes to my code, so I put this together instead. If I were to stop using smooth scrolling, I'd feel behooved to go through my code, and delete all the class="scroll" stuff. Using this technique, I can comment out 5 lines of JS, and the entire site updates. :)

<a href="/about">Smooth</a><!-- will never trigger the function -->
<a href="#contact">Smooth</a><!-- but he will -->
...
...
<div id="contact">...</div>


<script src="jquery.js" type="text/javascript"></script>
<script type="text/javascript">
    // Smooth scrolling to element IDs
    $('a[href^=#]:not([href=#])').on('click', function () {
        var element = $($(this).attr('href'));
        $('html,body').animate({ scrollTop: element.offset().top },'normal', 'swing');
        return false;
    });
</script>

Requirements:
1. <a> elements must have an href attribute that begin with # and be more than just #
2. An element on the page with a matching id attribute

What it does:
1. The function uses the href value to create the anchorID object
   - In the example, it's $('#contact'), /about starts with /
2. HTML, and BODY are animated to the top offset of anchorID
   - speed = 'normal' ('fast','slow', milliseconds, )
   - easing = 'swing' ('linear',etc ... google easing)
3. return false -- it prevents the browser from showing the hash in the URL
   - the script works without it, but it's not as "smooth".

Python's sort implementation "timsort" is specifically optimized for lists that contain ordered sections. Plus, it's written in C.

http://bugs.python.org/file4451/timsort.txt
http://en.wikipedia.org/wiki/Timsort

As people have mentioned, it may call the comparison function more times by some constant factor (but maybe call it more times in a shorter period in many cases!).

I would never rely on this, however. – Daniel Nadasi

I believe the Python developers are committed to keeping timsort, or at least keeping a sort that's O(n) in this case.

Generalized sorting (i.e. leaving apart radix sorts from limited value domains)
cannot be done in less than O(n log n) on a serial machine. – Barry Kelly

Right, sorting in the general case can't be faster than that. But since O() is an upper bound, timsort being O(n log n) on arbitrary input doesn't contradict its being O(n) given sorted(L1) + sorted(L2).

key is a function that will be called to transform the collection's items before they are compared. The parameter passed to key must be something that is callable.

The use of lambda creates an anonymous function (which is callable). In the case of sorted the callable only takes one parameters. Python's lambda is pretty simple. It can only do and return one thing really.

The syntax of lambda is the word lambda followed by the list of parameter names then a single block of code. The parameter list and code block are delineated by colon. This is similar to other constructs in python as well such as while, for, if and so on. They are all statements that typically have a code block. Lambda is just another instance of a statement with a code block.

We can compare the use of lambda with that of def to create a function.

adder_lambda = lambda parameter1,parameter2: parameter1+parameter2
def adder_regular(parameter1, parameter2): return parameter1+parameter2

lambda just gives us a way of doing this without assigning a name. Which makes it great for using as a parameter to a function.

variable is used twice here because on the left hand of the colon it is the name of a parameter and on the right hand side it is being used in the code block to compute something.

This is a faster version of the code from the post marked as the answer.

All of the benchmarks that I have performed show that a simple for loop that only contains something like an array fill is typically twice as fast if it is decrementing versus if it is incrementing.

Also, the array Length property is already passed as the parameter so it doesn't need to be retrieved from the array properties. It should also be pre-calculated and assigned to a local variable. Loop bounds calculations that involve a property accessor will re-compute the value of the bounds before each iteration of the loop.

public static byte[] CreateSpecialByteArray(int length)
{
    byte[] array = new byte[length];

    int len = length - 1;

    for (int i = len; i >= 0; i--)
    {
        array[i] = 0x20;
    }

    return array;
}

Extention for prior Java 8 solution

String result = String.join(",", name);

If you need prefix or/ and suffix for array values

 StringJoiner joiner = new StringJoiner(",");
 for (CharSequence cs: name) {
     joiner.add("'" + cs + "'");
 }
 return joiner.toString();

Or simple method concept

  public static String genInValues(String delimiter, String prefix, String suffix, String[] name) {
    StringJoiner joiner = new StringJoiner(delimiter);
    for (CharSequence cs: name) {
      joiner.add(prefix + cs + suffix);
    }
    return joiner.toString();
  }

For example

For Oracle i need "id in (1,2,3,4,5)" 
then use genInValues(",", "", "", name);

But for Postgres i need "id in (values (1),(2),(3),(4),(5))"
then use genInValues(",", "(", ")", name);

I had the same problem. You could also check which way the slash is pointing. For me it worked to use backslash, instead of forward slash. Example

xcopy /s /y "C:\SFML\bin\*.dll" "$(OutDir)"

Instead of:

xcopy /s /y "C:/SFML/bin/*.dll" "$(OutDir)"

In addition to the already posted answer, I thought I should share a handy trick I use to load all the DLL functions into the program through function pointers, without writing a separate GetProcAddress call for each and every function. I also like to call the functions directly as attempted in the OP.

Start by defining a generic function pointer type:

typedef int (__stdcall* func_ptr_t)();

What types that are used aren't really important. Now create an array of that type, which corresponds to the amount of functions you have in the DLL:

func_ptr_t func_ptr [DLL_FUNCTIONS_N];

In this array we can store the actual function pointers that point into the DLL memory space.

Next problem is that GetProcAddress expects the function names as strings. So create a similar array consisting of the function names in the DLL:

const char* DLL_FUNCTION_NAMES [DLL_FUNCTIONS_N] = 
{
  "dll_add",
  "dll_subtract",
  "dll_do_stuff",
  ...
};

Now we can easily call GetProcAddress() in a loop and store each function inside that array:

for(int i=0; i<DLL_FUNCTIONS_N; i++)
{
  func_ptr[i] = GetProcAddress(hinst_mydll, DLL_FUNCTION_NAMES[i]);

  if(func_ptr[i] == NULL)
  {
    // error handling, most likely you have to terminate the program here
  }
}

If the loop was successful, the only problem we have now is calling the functions. The function pointer typedef from earlier isn't helpful, because each function will have its own signature. This can be solved by creating a struct with all the function types:

typedef struct
{
  int  (__stdcall* dll_add_ptr)(int, int);
  int  (__stdcall* dll_subtract_ptr)(int, int);
  void (__stdcall* dll_do_stuff_ptr)(something);
  ...
} functions_struct;

And finally, to connect these to the array from before, create a union:

typedef union
{
  functions_struct  by_type;
  func_ptr_t        func_ptr [DLL_FUNCTIONS_N];
} functions_union;

Now you can load all the functions from the DLL with the convenient loop, but call them through the by_type union member.

But of course, it is a bit burdensome to type out something like

functions.by_type.dll_add_ptr(1, 1); whenever you want to call a function.

As it turns out, this is the reason why I added the "ptr" postfix to the names: I wanted to keep them different from the actual function names. We can now smooth out the icky struct syntax and get the desired names, by using some macros:

#define dll_add (functions.by_type.dll_add_ptr)
#define dll_subtract (functions.by_type.dll_subtract_ptr)
#define dll_do_stuff (functions.by_type.dll_do_stuff_ptr)

And voilà, you can now use the function names, with the correct type and parameters, as if they were statically linked to your project:

int result = dll_add(1, 1);

Disclaimer: Strictly speaking, conversions between different function pointers are not defined by the C standard and not safe. So formally, what I'm doing here is undefined behavior. However, in the Windows world, function pointers are always of the same size no matter their type and the conversions between them are predictable on any version of Windows I've used.

Also, there might in theory be padding inserted in the union/struct, which would cause everything to fail. However, pointers happen to be of the same size as the alignment requirement in Windows. A static_assert to ensure that the struct/union has no padding might be in order still.

git log $(git log --pretty=format:%H|tail -1)

you forgot to add this in your function : change to this :

<input type="button" value="ahaha"  onclick="$(this).MessageBox('msg');" />

One possible way to deal with this is to restore to a temporary database, and dump just that table from the temporary database. Then use the new script.

\d*\.\d*

Explanation:

\d* - any number of digits

\. - a dot

\d* - more digits.

This will match 123.456, .123, 123., but not 123

If you want the dot to be optional, in most languages (don't know about jquery) you can use

\d*\.?\d*

The accepted answer may be the best and most stable way to get a version number into an application statically, but does not actually answer the original question: How to retrieve the artifact's version number from pom.xml? Thus, I want to offer an alternative showing how to do it dynamically during runtime:

You can use Maven itself. To be more exact, you can use a Maven library.

<dependency>
  <groupId>org.apache.maven</groupId>
  <artifactId>maven-model</artifactId>
  <version>3.3.9</version>
</dependency>

And then do something like this in Java:

package de.scrum_master.app;

import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

import java.io.FileReader;
import java.io.IOException;

public class Application {
    public static void main(String[] args) throws IOException, XmlPullParserException {
        MavenXpp3Reader reader = new MavenXpp3Reader();
        Model model = reader.read(new FileReader("pom.xml"));
        System.out.println(model.getId());
        System.out.println(model.getGroupId());
        System.out.println(model.getArtifactId());
        System.out.println(model.getVersion());
    }
}

The console log is as follows:

de.scrum-master.stackoverflow:my-artifact:jar:1.0-SNAPSHOT
de.scrum-master.stackoverflow
my-artifact
1.0-SNAPSHOT

Update 2017-10-31: In order to answer Simon Sobisch's follow-up question I modified the example like this:

package de.scrum_master.app;

import org.apache.maven.model.Model;
import org.apache.maven.model.io.xpp3.MavenXpp3Reader;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Application {
  public static void main(String[] args) throws IOException, XmlPullParserException {
    MavenXpp3Reader reader = new MavenXpp3Reader();
    Model model;
    if ((new File("pom.xml")).exists())
      model = reader.read(new FileReader("pom.xml"));
    else
      model = reader.read(
        new InputStreamReader(
          Application.class.getResourceAsStream(
            "/META-INF/maven/de.scrum-master.stackoverflow/aspectj-introduce-method/pom.xml"
          )
        )
      );
    System.out.println(model.getId());
    System.out.println(model.getGroupId());
    System.out.println(model.getArtifactId());
    System.out.println(model.getVersion());
  }
}

Using can also use Java 8 stream API and do the same thing in one line.

If you want to print any specific property then use this syntax:

ArrayList<Room> rooms = new ArrayList<>();
rooms.forEach(room -> System.out.println(room.getName()));

OR

ArrayList<Room> rooms = new ArrayList<>();
rooms.forEach(room -> {
    // here room is available
});

if you want to print all the properties of Java object then use this:

ArrayList<Room> rooms = new ArrayList<>();
rooms.forEach(System.out::println);

Based on the code I've used for finding multiple instances of a string within a larger string, your code would look like:

List<int> inst = new List<int>();
int index = 0;
while (index >=0)
{
    index = source.IndexOf("extract\"(me,i-have lots. of]punctuation", index);
    inst.Add(index);
    index++;
}

According to this, you need to assign a height to the element in which the div is contained in order for 100% height to work. Does that work for you?

Most Java ".properties" files can be split by assuming the "=" is the separator - but the format is significantly more complicated than that and allows for embedding spaces, equals, newlines and any Unicode characters in either the property name or value.

I needed to load some Java properties for a C# application so I have implemented JavaProperties.cs to correctly read and write ".properties" formatted files using the same approach as the Java version - you can find it at http://www.kajabity.com/index.php/2009/06/loading-java-properties-files-in-csharp/.

There, you will find a zip file containing the C# source for the class and some sample properties files I tested it with.

Enjoy!

Creating a data.table with key=V1 automatically does this for you. Using Stephan's data foo

> require(data.table)
> foo.dt <- data.table(foo, key="V1")
> foo.dt
   V1  V2
1:  1 349
2:  1 393
3:  1 392
4:  2  94
5:  3  49
6:  3  32
7:  4 459

You could make use of Typescript's optional chaining. Example:

const name = person?.name;

If the property name exists on the person object you would get its value but if not it would automatically return undefined.

You could make use of this resource for a better understanding.

https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html

If you are using string variables you can format the string directly using a : then specify the format (e.g. N0, P2, etc).

decimal Number = 2000.55512016465m;
$"{Number:N}" #Outputs 2,000.55512016465

You can also specify the number of decimal places to show by adding a number to the end like

$"{Number:N1}" #Outputs 2,000.5
$"{Number:N2}" #Outputs 2,000.55
$"{Number:N3}" #Outputs 2,000.555
$"{Number:N4}" #Outputs 2,000.5551

The ALL_DIRECTORIES data dictionary view will have information about all the directories that you have access to. That includes the operating system path

SELECT owner, directory_name, directory_path
  FROM all_directories

Took a lot of googling but here is what I do in Python for MySql when I want to delete multiple items from a single table using a list of values.

#create some empty list
values = []
#continue to append the values you want to delete to it
#BUT you must ensure instead of a string it's a single value tuple
values.append(([Your Variable],))
#Then once your array is loaded perform an execute many
cursor.executemany("DELETE FROM YourTable WHERE ID = %s", values)

I want to add another solution: In my case, I need to use a Enum group in a drop down button list items. So they might have space, i.e. more user friendly descriptions needed:

  public enum CancelReasonsEnum
{
    [Description("In rush")]
    InRush,
    [Description("Need more coffee")]
    NeedMoreCoffee,
    [Description("Call me back in 5 minutes!")]
    In5Minutes
}

In a helper class (HelperMethods) I created the following method:

 public static List<string> GetListOfDescription<T>() where T : struct
    {
        Type t = typeof(T);
        return !t.IsEnum ? null : Enum.GetValues(t).Cast<Enum>().Select(x => x.GetDescription()).ToList();
    }

When you call this helper you will get the list of item descriptions.

 List<string> items = HelperMethods.GetListOfDescription<CancelReasonEnum>();

ADDITION: In any case, if you want to implement this method you need :GetDescription extension for enum. This is what I use.

 public static string GetDescription(this Enum value)
    {
        Type type = value.GetType();
        string name = Enum.GetName(type, value);
        if (name != null)
        {
            FieldInfo field = type.GetField(name);
            if (field != null)
            {
                DescriptionAttribute attr =Attribute.GetCustomAttribute(field,typeof(DescriptionAttribute)) as DescriptionAttribute;
                if (attr != null)
                {
                    return attr.Description;
                }
            }
        }
        return null;
        /* how to use
            MyEnum x = MyEnum.NeedMoreCoffee;
            string description = x.GetDescription();
        */

    }

Note that the answer from @unutbu will be correct until you want to set the value to something new, then it will not work if your dataframe is a view.

In [4]: df = pd.DataFrame({'foo':list('ABC')}, index=[0,2,1])
In [5]: df['bar'] = 100
In [6]: df['bar'].iloc[0] = 99
/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/pandas-0.16.0_19_g8d2818e-py2.7-macosx-10.9-x86_64.egg/pandas/core/indexing.py:118: SettingWithCopyWarning:
A value is trying to be set on a copy of a slice from a DataFrame

See the the caveats in the documentation: http://pandas.pydata.org/pandas-docs/stable/indexing.html#indexing-view-versus-copy
  self._setitem_with_indexer(indexer, value)

Another approach that will consistently work with both setting and getting is:

In [7]: df.loc[df.index[0], 'foo']
Out[7]: 'A'
In [8]: df.loc[df.index[0], 'bar'] = 99
In [9]: df
Out[9]:
  foo  bar
0   A   99
2   B  100
1   C  100

For those coming across this nowadays, this is what the placeholder attribute was made to do. No JS necessary:

<input type="text" placeholder="A new value">

=$W$4<=TODAY()

Returns true for dates up to and including today, false otherwise.

Replace double quotes with single ones:

INSERT
INTO    MY.LOGFILE
        (id,severity,category,logdate,appendername,message,extrainfo)
VALUES  (
       'dee205e29ec34',
       'FATAL',
       'facade.uploader.model',
       '2013-06-11 17:16:31',
       'LOGDB',
       NULL,
       NULL
       )

In SQL, double quotes are used to mark identifiers, not string constants.

You need set the keyframes animation in you CSS. And use the keyframe with jQuery:

$('#myTest').css({"animation":"my-animation 2s infinite"});

#myTest {_x000D_
  width: 50px;_x000D_
  height: 50px;_x000D_
  background: black;_x000D_
}_x000D_
_x000D_
@keyframes my-animation {_x000D_
  0% {_x000D_
    background: red;  _x000D_
  }_x000D_
  50% {_x000D_
    background: blue;  _x000D_
  }_x000D_
  100% {_x000D_
    background: green;  _x000D_
  }_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<div id="myTest"></div>

 >> man -k  mysqldump [enter in the terminal]

you will find the below explanation

--no-create-info, -t

Do not write CREATE TABLE statements that re-create each dumped table. Note This option does not not exclude statements creating log file groups or tablespaces from mysqldump output; however, you can use the --no-tablespaces option for this purpose.

--no-data, -d

Do not write any table row information (that is, do not dump table contents). This is useful if you want to dump only the CREATE TABLE statement for the table (for example, to create an empty copy of the table by loading the dump file).

# To export to file (data only)
mysqldump -t -u [user] -p[pass] -t mydb > mydb_data.sql

# To export to file (structure only)
mysqldump -d -u [user] -p[pass] -d mydb > mydb_structure.sql

Chart.js is quite useful, supporting numerous other types of charts as well.

It can be used both with jQuery and without.

Divide $percentage by 100 and multiply to $totalWidth. Simple maths.

Or you coud try the answer to this question here by Amber! To quote it again:

First, cancel your staged add for the manually moved file:

$ git reset path/to/newfile
$ mv path/to/newfile path/to/oldfile

Then, use Git to move the file:

$ git mv path/to/oldfile path/to/newfile

Of course, if you already committed the manual move, you may want to reset to the revision before the move instead, and then simply git mv from there.

For security reasons you should never return all the model's fields. I prefer to selectively choose them.

Flask's json encoding now supports UUID, datetime and relationships (and added query and query_class for flask_sqlalchemy db.Model class). I've updated the encoder as follows:

app/json_encoder.py

    from sqlalchemy.ext.declarative import DeclarativeMeta
    from flask import json


    class AlchemyEncoder(json.JSONEncoder):
        def default(self, o):
            if isinstance(o.__class__, DeclarativeMeta):
                data = {}
                fields = o.__json__() if hasattr(o, '__json__') else dir(o)
                for field in [f for f in fields if not f.startswith('_') and f not in ['metadata', 'query', 'query_class']]:
                    value = o.__getattribute__(field)
                    try:
                        json.dumps(value)
                        data[field] = value
                    except TypeError:
                        data[field] = None
                return data
            return json.JSONEncoder.default(self, o)

app/__init__.py

# json encoding
from app.json_encoder import AlchemyEncoder
app.json_encoder = AlchemyEncoder

With this I can optionally add a __json__ property that returns the list of fields I wish to encode:

app/models.py

class Queue(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    song_id = db.Column(db.Integer, db.ForeignKey('song.id'), unique=True, nullable=False)
    song = db.relationship('Song', lazy='joined')
    type = db.Column(db.String(20), server_default=u'audio/mpeg')
    src = db.Column(db.String(255), nullable=False)
    created_at = db.Column(db.DateTime, server_default=db.func.now())
    updated_at = db.Column(db.DateTime, server_default=db.func.now(), onupdate=db.func.now())

    def __init__(self, song):
        self.song = song
        self.src = song.full_path

    def __json__(self):
        return ['song', 'src', 'type', 'created_at']

I add @jsonapi to my view, return the resultlist and then my output is as follows:

[

{

    "created_at": "Thu, 23 Jul 2015 11:36:53 GMT",
    "song": 

        {
            "full_path": "/static/music/Audioslave/Audioslave [2002]/1 Cochise.mp3",
            "id": 2,
            "path_name": "Audioslave/Audioslave [2002]/1 Cochise.mp3"
        },
    "src": "/static/music/Audioslave/Audioslave [2002]/1 Cochise.mp3",
    "type": "audio/mpeg"
}

]

Both options are already mentioned in the existing answers:

from django.db.models import Q
q1 = User.objects.filter(Q(income__gte=5000) | Q(income__isnull=True))

and

q2 = User.objects.filter(income__gte=5000) | User.objects.filter(income__isnull=True)

However, there seems to be some confusion regarding which one is to prefer.

The point is that they are identical on the SQL level, so feel free to pick whichever you like!

The Django ORM Cookbook talks in some detail about this, here is the relevant part:

queryset = User.objects.filter(
        first_name__startswith='R'
    ) | User.objects.filter(
    last_name__startswith='D'
)

leads to

In [5]: str(queryset.query)
Out[5]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
"auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
"auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
"auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'

and

qs = User.objects.filter(Q(first_name__startswith='R') | Q(last_name__startswith='D'))

leads to

In [9]: str(qs.query)
Out[9]: 'SELECT "auth_user"."id", "auth_user"."password", "auth_user"."last_login",
 "auth_user"."is_superuser", "auth_user"."username", "auth_user"."first_name",
  "auth_user"."last_name", "auth_user"."email", "auth_user"."is_staff",
  "auth_user"."is_active", "auth_user"."date_joined" FROM "auth_user"
  WHERE ("auth_user"."first_name"::text LIKE R% OR "auth_user"."last_name"::text LIKE D%)'

source: django-orm-cookbook

On Version 1.9.6.1. For UnPushed commit.

1. Click on previously committed description
2. Click Commit icon
3. Enter new commit message, and choose "Ammend latest commit" from the Commit options dropdown.
4. Commit your message.

My case:

Missing node-sass in package.json

Solution:

1. npm i --save node-sass@latest
2. remove node-modules folder
3. npm i
4. check "@angular-devkit/build-angular": "^0.901.0" version in package.json

This way work for me with Eclipse in Android developer tool from Google -righ click - property - java build path - add external JAR

point to: android-support-v7-appcompat.jar in /sdk/extras/android/support/v7/appcompat/libs

Then

import android.support.v7.app.ActionBarActivity;

Updated Answer:

DynamoDB allows for specification of secondary indexes to aid in this sort of query. Secondary indexes can either be global, meaning that the index spans the whole table across hash keys, or local meaning that the index would exist within each hash key partition, thus requiring the hash key to also be specified when making the query.

For the use case in this question, you would want to use a global secondary index on the "CreatedAt" field.

For more on DynamoDB secondary indexes see the secondary index documentation

Original Answer:

DynamoDB does not allow indexed lookups on the range key only. The hash key is required such that the service knows which partition to look in to find the data.

You can of course perform a scan operation to filter by the date value, however this would require a full table scan, so it is not ideal.

If you need to perform an indexed lookup of records by time across multiple primary keys, DynamoDB might not be the ideal service for you to use, or you might need to utilize a separate table (either in DynamoDB or a relational store) to store item metadata that you can perform an indexed lookup against.

Use this way so that result will not be displayed while running stored procedure.

The query:

SELECT a.strUserID FROM tblUsers a WHERE a.lngUserID = lngUserID LIMIT 1 INTO @strUserID;

You have two typing errors in your code:

 struct timeval,

should be

 struct timeval

and after the printf() parenthesis you need a semicolon.

Also, depending on the compiler, so simple a cycle might just be optimized out, giving you a time of 0 microseconds whatever you do.

Finally, the time calculation is wrong. You only take into accounts the seconds, ignoring the microseconds. You need to get the difference between seconds, multiply by one million, then add "after" tv_usec and subtract "before" tv_usec. You gain nothing by casting an integer number of seconds to a float.

I'd suggest checking out the man page for struct timeval.

This is the code:

#include <stdio.h>
#include <sys/time.h>

int main (int argc, char** argv) {
    struct timeval tvalBefore, tvalAfter;  // removed comma

    gettimeofday (&tvalBefore, NULL);
    int i =0;
    while ( i < 10000) {
        i ++;
    }

    gettimeofday (&tvalAfter, NULL);

    // Changed format to long int (%ld), changed time calculation

    printf("Time in microseconds: %ld microseconds\n",
            ((tvalAfter.tv_sec - tvalBefore.tv_sec)*1000000L
           +tvalAfter.tv_usec) - tvalBefore.tv_usec
          ); // Added semicolon
    return 0;
}

SELECT name, salary 
FROM employees 
where
 salary = (SELECT (salary) FROM employees GROUP BY salary DESC LIMIT 1,1)

This line:

layout = (LinearLayout) findViewById(R.id.statsviewlayout);

Looks for the "statsviewlayout" id in your current 'contentview'. Now you've set that here:

setContentView(new GraphTemperature(getApplicationContext()));

And i'm guessing that new "graphTemperature" does not set anything with that id.

It's a common mistake to think you can just find any view with findViewById. You can only find a view that is in the XML (or appointed by code and given an id).

The nullpointer will be thrown because the layout you're looking for isn't found, so

layout.addView(buyButton);

Throws that exception.

addition: Now if you want to get that view from an XML, you should use an inflater:

layout = (LinearLayout) View.inflate(this, R.layout.yourXMLYouWantToLoad, null);

assuming that you have your linearlayout in a file called "yourXMLYouWantToLoad.xml"

POJO:- POJO is a Java object not bound by any restriction other than those forced by the Java Language Specification.

Properties of POJO

1. All properties must be public setter and getter methods
2. All instance variables should be private
3. Should not Extend prespecified classes.
4. Should not Implement prespecified interfaces.
5. Should not contain prespecified annotations.
6. It may not have any argument constructors

Example of POJO

public class POJO {

    private String value;

    public String getValue() {
         return value;
    }

    public void setValue(String value) {
        this.value = value;
    }
}

You should be able to download the file using

window.open("data:application/pdf;base64," + Base64.encode(out));

db.find({ pictures: { $elemMatch: { $exists: true } } })

$elemMatch matches documents that contain an array field with at least one element that matches the specified query.

So you're matching all arrays with at least an element.

In swift 3

let nextVC = self.storyboard?.instantiateViewController(withIdentifier: "NextViewController") as! NextViewController        
self.navigationController?.pushViewController(nextVC, animated: true)

If you already have a service and want it to work all the time, you need to add 2 things:

1. in the service itself:

   public int onStartCommand(Intent intent, int flags, int startId) {
       return START_STICKY;
   }
   

2. In the manifest:

   android:launchMode="singleTop"
   

No need to add bind unless you need it in the service.

if you state a.redLink{color:red;} then to keep this on hover and such add a.redLink:hover{color:red;} This will make sure no other hover states will change the color of your links

you will need to do

1- store a cookie for accounts list

2- optional store a cookie for default one

3- store for each account with it's index like acc1, acc2

4- put in the url something represent the index of accounts and if not you will select the default one like google mail domain.com/0/some-url >> 0 here represent the index of account also you may need to know how to use urlwrite

5- when select a cookie, select it according to your urlpath represent the account index

Regards

You can use jQuery's hover event to keep track manually:

$(...).hover(
    function() { $.data(this, 'hover', true); },
    function() { $.data(this, 'hover', false); }
).data('hover', false);

if ($(something).data('hover'))
    //Hovered!

Another thing that can cause this error is creating a model with the centering/scaling standardize function from the arm package -- m <- standardize(lm(y ~ x, data = train))

If you then try predict(m), you get the same error as in this question.

When converting a dictionary into a pandas dataframe where you want the keys to be the columns of said dataframe and the values to be the row values, you can do simply put brackets around the dictionary like this:

>>> dict_ = {'key 1': 'value 1', 'key 2': 'value 2', 'key 3': 'value 3'}
>>> pd.DataFrame([dict_])

    key 1     key 2     key 3
0   value 1   value 2   value 3

It's saved me some headaches so I hope it helps someone out there!

EDIT: In the pandas docs one option for the data parameter in the DataFrame constructor is a list of dictionaries. Here we're passing a list with one dictionary in it.

Note that there are other ways of achieving data consistency that #pragma pack offers (for instance some people use #pragma pack(1) for structures that should be sent across the network). For instance, see the following code and its subsequent output:

#include <stdio.h>

struct a {
    char one;
    char two[2];
    char eight[8];
    char four[4];
};

struct b { 
    char one;
    short two;
    long int eight;
    int four;
};

int main(int argc, char** argv) {
    struct a twoa[2] = {}; 
    struct b twob[2] = {}; 
    printf("sizeof(struct a): %i, sizeof(struct b): %i\n", sizeof(struct a), sizeof(struct b));
    printf("sizeof(twoa): %i, sizeof(twob): %i\n", sizeof(twoa), sizeof(twob));
}

The output is as follows: sizeof(struct a): 15, sizeof(struct b): 24 sizeof(twoa): 30, sizeof(twob): 48

Notice how the size of struct a is exactly what the byte count is, but struct b has padding added (see this for details on the padding). By doing this as opposed to the #pragma pack you can have control of converting the "wire format" into the appropriate types. For instance, "char two[2]" into a "short int" et cetera.

from nltk.corpus import stopwords
# ...
filtered_words = [word for word in word_list if word not in stopwords.words('english')]

// read file and make object
let content = JSON.parse(fs.readFileSync('file.json', 'utf8'));
// edit or add property
content.expiry_date = 999999999999;
//write file
fs.writeFileSync('file.json', JSON.stringify(content));