If you want to select a value as default, in your form builder give it a value :

this.myForm = this.FB.group({
    mySelect: [this.options[0].key, [/* Validators here */]]
});

Now in your HTML :

<form [formGroup]="myForm">
    <select [formControlName]="mySelect">
        <option *ngFor="let opt of options" [value]="opt.key">ANY TEXT YOU WANT HERE</option>
    </select>
</form>

What my code does is giving your select a value, that is equal to the first value of your options list. This is how you select an option as default in Angular, selected is useless.

Code:

library(microbenchmark)

dflist <- vector(length=10,mode="list")
for(i in 1:100)
{
  dflist[[i]] <- data.frame(a=runif(n=260),b=runif(n=260),
                            c=rep(LETTERS,10),d=rep(LETTERS,10))
}


mb <- microbenchmark(
plyr::rbind.fill(dflist),
dplyr::bind_rows(dflist),
data.table::rbindlist(dflist),
plyr::ldply(dflist,data.frame),
do.call("rbind",dflist),
times=1000)

ggplot2::autoplot(mb)

Session:

R version 3.3.0 (2016-05-03)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

> packageVersion("plyr")
[1] ‘1.8.4’
> packageVersion("dplyr")
[1] ‘0.5.0’
> packageVersion("data.table")
[1] ‘1.9.6’

UPDATE: Rerun 31-Jan-2018. Ran on the same computer. New versions of packages. Added seed for seed lovers.

set.seed(21)
library(microbenchmark)

dflist <- vector(length=10,mode="list")
for(i in 1:100)
{
  dflist[[i]] <- data.frame(a=runif(n=260),b=runif(n=260),
                            c=rep(LETTERS,10),d=rep(LETTERS,10))
}


mb <- microbenchmark(
  plyr::rbind.fill(dflist),
  dplyr::bind_rows(dflist),
  data.table::rbindlist(dflist),
  plyr::ldply(dflist,data.frame),
  do.call("rbind",dflist),
  times=1000)

ggplot2::autoplot(mb)+theme_bw()


R version 3.4.0 (2017-04-21)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1

> packageVersion("plyr")
[1] ‘1.8.4’
> packageVersion("dplyr")
[1] ‘0.7.2’
> packageVersion("data.table")
[1] ‘1.10.4’

UPDATE: Rerun 06-Aug-2019.

set.seed(21)
library(microbenchmark)

dflist <- vector(length=10,mode="list")
for(i in 1:100)
{
  dflist[[i]] <- data.frame(a=runif(n=260),b=runif(n=260),
                            c=rep(LETTERS,10),d=rep(LETTERS,10))
}


mb <- microbenchmark(
  plyr::rbind.fill(dflist),
  dplyr::bind_rows(dflist),
  data.table::rbindlist(dflist),
  plyr::ldply(dflist,data.frame),
  do.call("rbind",dflist),
  purrr::map_df(dflist,dplyr::bind_rows),
  times=1000)

ggplot2::autoplot(mb)+theme_bw()

R version 3.6.0 (2019-04-26)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.2 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so

packageVersion("plyr")
packageVersion("dplyr")
packageVersion("data.table")
packageVersion("purrr")

>> packageVersion("plyr")
[1] ‘1.8.4’
>> packageVersion("dplyr")
[1] ‘0.8.3’
>> packageVersion("data.table")
[1] ‘1.12.2’
>> packageVersion("purrr")
[1] ‘0.3.2’

You should escape the quotes like this:

curl -i -X POST -d '{\"screencast\":{\"subject\":\"tools\"}}'  \
  http://localhost:3570/index.php/trainingServer/screencast.json

Short koltin version

fun File.deleteDirectory(): Boolean {
    return if (exists()) {
        listFiles()?.forEach {
            if (it.isDirectory) {
                it.deleteDirectory()
            } else {
                it.delete()
            }
        }
        delete()
    } else false
}

UPDATE

Kotlin stdlib function

file.deleteRecursively()

maybe you have code like this before the jquery:

var $jq=jQuery.noConflict();
$jq('ul.menu').lavaLamp({
    fx: "backout", 
    speed: 700
});

and them was Conflict

you can change $ to (jQuery)

This Is What I Would Do:

from datetime import *

months = ["Unknown",
          "January",
          "Febuary",
          "March",
          "April",
          "May",
          "June",
          "July",
          "August",
          "September",
          "October",
          "November",
          "December"]

now = (datetime.now())
year = (now.year)
month = (months[now.month])
print(month)

It Outputs:

>>> September

(This Was The Real Date When I Wrote This)

DatePicker dp = (DatePicker) findViewById(R.id.datePicker1);

dp.setMaxDate(new Date().getTime());

This code may help you. Use it in your oncreate method.

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);

I also occured the error,and I sloved it by removing the curly braces,hope it will help someone else.

You can see that ,I did not put the con in the curly brace,and the error occured ,when I remove the burly brace , the error disappeared.

const modal = (props) => {
const { show, onClose } = props;

let con = <div className="modal" onClick={onClose}>
        {props.children}
        </div>;

return show === true ? (
    {con}
) : (
    <div>hello</div>
);

There are an article about the usage of the curly brace.click here

Without using a lambda function and for valid inputs only, I think it's clearer to do this:

Array.ConvertAll<string, int>(value.Split(','), Convert.ToInt32);

the reverse function comes in handy here:

myArray = [1,2,3,4]
myArray.reverse()
for x in myArray:
    print x

https://dev.mysql.com/doc/refman/8.0/en/alter-table.html

For MySQL 8

alter table creditReportXml_temp change column applicationID applicantID int(11);

Please use this on SQL Server 2005:

sp_rename old_table_name , new_table_name

it will give you:

Caution: Changing any part of an object name could break scripts and stored procedures.

but your table name will be changed.

char[] abc = new char[26];

for(int i = 0; i<26;i++) {
    abc[i] = (char)('a'+i);
}

Getting Started Install from npm:

npm install imask And import or require:

import IMask from 'imask';

or use CDN:

var dateMask = IMask(element, {
  mask: Date,  // enable date mask

  // other options are optional
  pattern: 'Y-`m-`d',  // Pattern mask with defined blocks, default is 'd{.}`m{.}`Y'
  // you can provide your own blocks definitions, default blocks for date mask are:
  blocks: {
    d: {
      mask: IMask.MaskedRange,
      from: 1,
      to: 31,
      maxLength: 2,
    },
    m: {
      mask: IMask.MaskedRange,
      from: 1,
      to: 12,
      maxLength: 2,
    },
    Y: {
      mask: IMask.MaskedRange,
      from: 1900,
      to: 9999,
    }
  },
  // define date -> str convertion
  format: function (date) {
    var day = date.getDate();
    var month = date.getMonth() + 1;
    var year = date.getFullYear();

    if (day < 10) day = "0" + day;
    if (month < 10) month = "0" + month;

    return [year, month, day].join('-');
  },
  // define str -> date convertion
  parse: function (str) {
    var yearMonthDay = str.split('-');
    return new Date(yearMonthDay[0], yearMonthDay[1] - 1, yearMonthDay[2]);
  },

  // optional interval options
  min: new Date(2000, 0, 1),  // defaults to `1900-01-01`
  max: new Date(2020, 0, 1),  // defaults to `9999-01-01`

  autofix: true,  // defaults to `false`

  // also Pattern options can be set
  lazy: false,

  // and other common options
  overwrite: true  // defaults to `false`
});

Got exactly the same problem, I keep seeing my proxy configuration even after removing the npmrc file and deleting the keys.

I found out that npm were using windows env key http-proxy by default.

So go in Computer->Properties->Advanced system settings->Environement variables and check there is no http-proxy key configured.

The default colours in Gecko, assuming the user hasn't changed their preferences, are:

• standard link: #0000EE (blue)
• visited link: #551A8B (purple)
• active link: #EE0000 (red)

Source

Gecko also provides names for the user's colours; they are -moz-hyperlinktext -moz-visitedhyperlinktext and -moz-activehyperlinktext and they also provide -moz-nativehyperlinktext which is the system link colour.

You generally don't want to bloat production package with things that you only intend to use for Development purposes.

Use --save-dev (or -D) option to separate packages such as Unit Test frameworks (jest, jasmine, mocha, chai, etc.)

Any other packages that your app needs for Production, should be installed using --save (or -S).

npm install --save lodash       //prod dependency
npm install -S moment           // "       "
npm install -S opentracing      // "       "

npm install -D jest                 //dev only dependency
npm install --save-dev typescript   //dev only dependency

If you open the package.json file then you will see these entries listed under two different sections:

"dependencies": {
  "lodash": "4.x",
  "moment": "2.x",
  "opentracing": "^0.14.1"
},

"devDependencies": {
    "jest": "22.x",
    "typescript": "^2.8.3"
},

You can first choose which cells you don't want to be protected (to be user-editable) by setting the Locked status of them to False:

Worksheets("Sheet1").Range("B2:C3").Locked = False

Then, you can protect the sheet, and all the other cells will be protected. The code to do this, and still allow your VBA code to modify the cells is:

Worksheets("Sheet1").Protect UserInterfaceOnly:=True

or

Call Worksheets("Sheet1").Protect(UserInterfaceOnly:=True)

raw_input is no longer available in Python 3.x. But raw_input was renamed input, so the same functionality exists.

input_var = input("Enter something: ")
print ("you entered " + input_var) 

Documentation of the change

df['y'] will set a column

since you want to set a row, use .loc

Note that .ix is equivalent here, yours failed because you tried to assign a dictionary to each element of the row y probably not what you want; converting to a Series tells pandas that you want to align the input (for example you then don't have to to specify all of the elements)

In [7]: df = pandas.DataFrame(columns=['a','b','c','d'], index=['x','y','z'])

In [8]: df.loc['y'] = pandas.Series({'a':1, 'b':5, 'c':2, 'd':3})

In [9]: df
Out[9]: 
     a    b    c    d
x  NaN  NaN  NaN  NaN
y    1    5    2    3
z  NaN  NaN  NaN  NaN

You can hide everything using some css:

#some_div
{
  display: none;
}

and then in javascript assign a function to document.onload to remove that div.

jQuery makes things like this very easy.

You could also do something like this:

df = df[['x', 'y', 'a', 'b']]

You can get the list of columns with:

cols = list(df.columns.values)

The output will produce something like this:

['a', 'b', 'x', 'y']

...which is then easy to rearrange manually before dropping it into the first function

Please use following CSS properties for center align element horizontally as well as vertically. This is worked fine for me.

div {
  position: absolute;
  left: 0;
  top: 0;
  right: 0;
  bottom: 0px;
  margin: auto;
  width: 100px;
  height: 100px;
}

$(document).ready(function() {
  $('td').on('click', function() {
    var value = $this.text();
  });
});

For Rails 4+, use change_column_default

def change
  change_column_default :table, :column, value
end

It is to mark the parameter as optional.

• TypeScript handbook https://www.typescriptlang.org/docs/handbook/functions.html#optional-and-default-parameters
• TypeScript Deep Dive https://basarat.gitbook.io/typescript/type-system/functions#optional-parameters

Just to clarify, you can't do location.split('#'), location is an object, not a string. But you can do location.href.split('#'); because location.href is a string.

The file is just a file, you need to create an image like so:

var _URL = window.URL || window.webkitURL;
$("#file").change(function (e) {
    var file, img;
    if ((file = this.files[0])) {
        img = new Image();
        var objectUrl = _URL.createObjectURL(file);
        img.onload = function () {
            alert(this.width + " " + this.height);
            _URL.revokeObjectURL(objectUrl);
        };
        img.src = objectUrl;
    }
});

Demo: http://jsfiddle.net/4N6D9/1/

I take it you realize this is only supported in a few browsers. Mostly firefox and chrome, could be opera as well by now.

P.S. The URL.createObjectURL() method has been removed from the MediaStream interface. This method has been deprecated in 2013 and superseded by assigning streams to HTMLMediaElement.srcObject. The old method was removed because it is less safe, requiring a call to URL.revokeOjbectURL() to end the stream. Other user agents have either deprecated (Firefox) or removed (Safari) this feature feature.

For more information, please refer here.

To handle the situation in which there is no wiring, beans are available with @Autowired required attribute set to false.

But when using @Inject, the Provider interface works with the bean which means that the bean is not injected directly but with the Provider.

Here is a quick and dirty solution which takes uploaded file contents from the HTTP body and writes it to a file. I included a "bare bones" HTML/JS snippet for the file upload.

Web API Method:

[Route("api/myfileupload")]        
[HttpPost]
public string MyFileUpload()
{
    var request = HttpContext.Current.Request;
    var filePath = "C:\\temp\\" + request.Headers["filename"];
    using (var fs = new System.IO.FileStream(filePath, System.IO.FileMode.Create))
    {
        request.InputStream.CopyTo(fs);
    }
    return "uploaded";
}

HTML File Upload:

<form>
    <input type="file" id="myfile"/>  
    <input type="button" onclick="uploadFile();" value="Upload" />
</form>
<script type="text/javascript">
    function uploadFile() {        
        var xhr = new XMLHttpRequest();                 
        var file = document.getElementById('myfile').files[0];
        xhr.open("POST", "api/myfileupload");
        xhr.setRequestHeader("filename", file.name);
        xhr.send(file);
    }
</script>

This codifies @Sérgio and @unutbu's answers. It will "just work" with either a pytz.timezone object or an IANA Time Zone string.

def make_tz_aware(dt, tz='UTC', is_dst=None):
    """Add timezone information to a datetime object, only if it is naive."""
    tz = dt.tzinfo or tz
    try:
        tz = pytz.timezone(tz)
    except AttributeError:
        pass
    return tz.localize(dt, is_dst=is_dst) 

This seems like what datetime.localize() (or .inform() or .awarify()) should do, accept both strings and timezone objects for the tz argument and default to UTC if no time zone is specified.

The table normally contains multiple rows. Use a loop and use row.Field<string>(0) to access the value of each row.

foreach(DataRow row in dt.Rows)
{
    string file = row.Field<string>("File");
}

You can also access it via index:

foreach(DataRow row in dt.Rows)
{
    string file = row.Field<string>(0);
}

If you expect only one row, you can also use the indexer of DataRowCollection:

string file = dt.Rows[0].Field<string>(0); 

Since this fails if the table is empty, use dt.Rows.Count to check if there is a row:

if(dt.Rows.Count > 0)
    file = dt.Rows[0].Field<string>(0);

In Python 3.x the raw_input() of Python 2.x has been replaced by input() function. However in both the cases you cannot input multi-line strings, for that purpose you would need to get input from the user line by line and then .join() them using \n, or you can also take various lines and concatenate them using + operator separated by \n

To get multi-line input from the user you can go like:

no_of_lines = 5
lines = ""
for i in xrange(no_of_lines):
    lines+=input()+"\n"

print(lines)

Or

lines = []
while True:
    line = input()
    if line:
        lines.append(line)
    else:
        break
text = '\n'.join(lines)

MongoDB needs data directory to store data. Default path is /data/db

When you start MongoDB engine, it searches this directory which is missing in your case. Solution is create this directory and assign rwx permission to user.

If you want to change the path of your data directory then you should specify it while starting mongod server like,

mongod --dbpath /data/<path> --port <port no> 

This should help you start your mongod server with custom path and port.

Without punctuation (as @Burusothman has mentioned):

current_date_time="`date +%Y%m%d%H%M%S`";
echo $current_date_time;

O/P:

20170115072120

With punctuation:

current_date_time="`date "+%Y-%m-%d %H:%M:%S"`";
echo $current_date_time;

O/P:

2017-01-15 07:25:33

The current HTML5 draft also allows ommitting the href attribute completely.

If the a element has no href attribute, then the element represents a placeholder for where a link might otherwise have been placed, if it had been relevant.

To answer your question: Yes it's valid.

Create custom DatePickerDialog style:

<style name="AppTheme.DatePickerDialog" parent="Theme.MaterialComponents.Light.Dialog">
    <item name="android:colorAccent">@color/colorPrimary</item>
    <item name="android:colorControlActivated">@color/colorPrimaryDark</item>
    <item name="android:buttonBarPositiveButtonStyle">@style/AppTheme.Alert.Button.Positive</item>
    <item name="android:buttonBarNegativeButtonStyle">@style/AppTheme.Alert.Button.Negative</item>
    <item name="android:buttonBarNeutralButtonStyle">@style/AppTheme.Alert.Button.Neutral</item>
</style>

<style name="AppTheme.Alert.Button.Positive" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="android:textColor">@color/buttonPositive</item>
</style>

<style name="AppTheme.Alert.Button.Negative" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="android:textColor">@color/buttonNegative</item>
</style>

<style name="AppTheme.Alert.Button.Neutral" parent="Widget.MaterialComponents.Button.TextButton">
    <item name="android:textColor">@color/buttonNeutral</item>
</style>

Set custom datePickerDialogTheme style in app theme:

<style name="AppTheme" parent="Theme.MaterialComponents.Light.NoActionBar">
    <item name="android:datePickerDialogTheme">@style/AppTheme.DatePickerDialog</item>
</style>

Set theme programmatically on initialization like this:

val datetime = DatePickerDialog(this, R.style.AppTheme_DatePickerDialog)

The page.github.com does mention:

Github Pages are hosted free and easily published through our site,

Without ever mentioning access control.

The GitHub page help doesn't mention any ACL either.
They are best managed in a gh-pages branch, and can be managed in their own submodule.
But again, without any restriction in term of visibility once published by GitHub.

If you have the XML stored inside a string variable you could use a StringReader:

var xml = @"<car/>";
var serializer = new XmlSerializer(typeof(Car));
using (var reader = new StringReader(xml))
{
    var car = (Car)serializer.Deserialize(reader);
}

~ : Reasonably close to

   ~1.1.5: 1.1.0 <= accepted < 1.2.0

^: Compatible with

   ^1.1.5: 1.1.5 <= accepted < 2.0.0

   ^0.1.3: 0.1.3 <= accepted < 0.2.0

   ^0.0.4: 0.0.4 <= accepted < 0.1.0

The 'c' means it's a character special file.

You might want to do this.

input[type=checkbox] {

 -ms-transform: scale(2); /* IE */
 -moz-transform: scale(2); /* FF */
 -webkit-transform: scale(2); /* Safari and Chrome */
 -o-transform: scale(2); /* Opera */
  padding: 10px;
}

Here are examples for Delete and Put for React & redux & ReduxThunk with Firebase:

Update (PUT):

export const updateProduct = (id, title, description, imageUrl) => {
    await fetch(`https://FirebaseProjectName.firebaseio.com/products/${id}.json`, {
  method: "PATCH",
  header: {
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    title,
    description,
    imageUrl,
  }),
});

dispatch({
  type: "UPDATE_PRODUCT",
  pid: id,
  productData: {
    title,
    description,
    imageUrl,
  },
});
};
};

Delete:

export const deleteProduct = (ProductId) => {
  return async (dispatch) => {
await fetch(
  `https://FirebaseProjectName.firebaseio.com/products/${ProductId}.json`,
  {
    method: "DELETE",
  }
);
dispatch({
  type: "DELETE_PRODUCT",
  pid: ProductId,
});
  };
};

You can accomplish this via layout weights. A weight dictates how the unclaimed portions of the screen are divided up. Give each EditText a layout_width of 0, and some proportional weight. I.e., give one a weight of 2, and the other a weight of 1 if you want the first to take up twice as much space.

If you are using CocoaPods, the most likely problem is because your Pods project Build Settings for Build Active Architecture Only is set to Yes for Debug.

The solution is simple. Change it to No.

Similarly, change to No for your application project.

What Arrays.toString() does is create a string representation of each individual byte in your byteArray.

Please check the API documentation Arrays API

To convert your response string back to the original byte array, you have to use split(",") or something and convert it into a collection and then convert each individual item in there to a byte to recreate your byte array.

Zip Arrays of same length:

Using Array.prototype.map()

const zip = (a, b) => a.map((k, i) => [k, b[i]]);

console.log(zip([1,2,3], ["a","b","c"]));
// [[1, "a"], [2, "b"], [3, "c"]]

Zip Arrays of different length:

Using Array.from()

const zip = (a, b) => Array.from(Array(Math.max(b.length, a.length)), (_, i) => [a[i], b[i]]);

console.log( zip([1,2,3], ["a","b","c","d"]) );
// [[1, "a"], [2, "b"], [3, "c"], [undefined, "d"]]

Using Array.prototype.fill() and Array.prototype.map()

const zip = (a, b) => Array(Math.max(b.length, a.length)).fill().map((_,i) => [a[i], b[i]]);

console.log(zip([1,2,3], ["a","b","c","d"]));
// [[1, "a"], [2, "b"], [3, "c"], [undefined, 'd']]

Non-matched part of the URL is exposed as a request attribute named HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE:

@RequestMapping("/{id}/**")
public void foo(@PathVariable("id") int id, HttpServletRequest request) {
    String restOfTheUrl = (String) request.getAttribute(
        HandlerMapping.PATH_WITHIN_HANDLER_MAPPING_ATTRIBUTE);
    ...
}

If you assume just one result you could do this as in Edwin suggested by using specific users id.

$someUserId = 'abc123';

$stmt = $mysqli->prepare("SELECT ssfullname, ssemail FROM userss WHERE user_id = ?");
$stmt->bind_param('s', $someUserId);

$stmt->execute();

$stmt->bind_result($ssfullname, $ssemail);
$stmt->store_result();
$stmt->fetch();

ChromePhp::log($ssfullname, $ssemail); //log result in chrome if ChromePhp is used.

OR as "Your Common Sense" which selects just one user.

$stmt = $mysqli->prepare("SELECT ssfullname, ssemail FROM userss ORDER BY ssid LIMIT 1");

$stmt->execute();
$stmt->bind_result($ssfullname, $ssemail);
$stmt->store_result();
$stmt->fetch();

Nothing really different from the above except for PHP v.5

ES6 of the day here;

const json_getAllKeys = data => (
  data.reduce((keys, obj) => (
    keys.concat(Object.keys(obj).filter(key => (
      keys.indexOf(key) === -1))
    )
  ), [])
)

And yes it can be written in very long one line;

const json_getAllKeys = data => data.reduce((keys, obj) => keys.concat(Object.keys(obj).filter(key => keys.indexOf(key) === -1)), [])

EDIT: Returns all first order keys if the input is of type array of objects

i received this message for an application on iis 7.5 with a classic app pool assigned to .net 2.0. i needed to go to Handler Mappings and add two script maps, both were the same with except for the name. one name was svc-ISAPI-2.0-64, the other was svc-ISAPI-2.0. The request path was .svc. And the Executable was %SystemRoot%\Microsoft.NET\Framework64\v2.0.50727\aspnet_isapi.dll. i restarted iis and all was happy

You could use Mockito. I am not sure with PostConstruct specifically, but this generally works:

// Create a mock of Resource to change its behaviour for testing
@Mock
private Resource resource;

// Testing instance, mocked `resource` should be injected here 
@InjectMocks
@Resource
private TestedClass testedClass;

@Before
public void setUp() throws Exception {
    // Initialize mocks created above
    MockitoAnnotations.initMocks(this);
    // Change behaviour of `resource`
    when(resource.getSomething()).thenReturn("Foo");   
}

I am surprised nobody actually acknowledged focusout event:

var button = document.getElementById('button');
button.addEventListener('click', function(e){
  e.target.style.backgroundColor = 'green';
});
button.addEventListener('focusout', function(e){
  e.target.style.backgroundColor = '';
});

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
</head>
<body>
  <button id="button">Click</button>
</body>
</html>

I know the question is seeking a regex solution but in every attempt it won't work to cover everything

I decided to write this method in Python which only works with urls that have a subdomain (i.e. www.mydomain.co.uk) and not multiple level subdomains like www.mail.yahoo.com

def urlextract(url):
  url_split=url.split(".")
  if len(url_split) <= 2:
      raise Exception("Full url required with subdomain:",url)
  return {'subdomain': url_split[0], 'domain': url_split[1], 'suffix': ".".join(url_split[2:])}

In C the char type has a numeric value so the > operator will work just fine for example

#include <stdio.h>
main() {

    char a='z';

    char b='h';

    if ( a > b ) {
        printf("%c greater than %c\n",a,b);
    }
}

There is a website where you can upload your image, and see the result.

http://vectormagic.com/home

But if you want to download your svg-image, you need to register. (If you register, you get 2 images for free)

You can use Core Graphics to draw the gradient, as pointed to in Mike's response. As a more detailed example, you could create a UIView subclass to use as a background for your UILabel. In that UIView subclass, override the drawRect: method and insert code similar to the following:

- (void)drawRect:(CGRect)rect 
{
    CGContextRef currentContext = UIGraphicsGetCurrentContext();

    CGGradientRef glossGradient;
    CGColorSpaceRef rgbColorspace;
    size_t num_locations = 2;
    CGFloat locations[2] = { 0.0, 1.0 };
    CGFloat components[8] = { 1.0, 1.0, 1.0, 0.35,  // Start color
         1.0, 1.0, 1.0, 0.06 }; // End color

    rgbColorspace = CGColorSpaceCreateDeviceRGB();
    glossGradient = CGGradientCreateWithColorComponents(rgbColorspace, components, locations, num_locations);

    CGRect currentBounds = self.bounds;
    CGPoint topCenter = CGPointMake(CGRectGetMidX(currentBounds), 0.0f);
    CGPoint midCenter = CGPointMake(CGRectGetMidX(currentBounds), CGRectGetMidY(currentBounds));
    CGContextDrawLinearGradient(currentContext, glossGradient, topCenter, midCenter, 0);

    CGGradientRelease(glossGradient);
    CGColorSpaceRelease(rgbColorspace); 
}

This particular example creates a white, glossy-style gradient that is drawn from the top of the UIView to its vertical center. You can set the UIView's backgroundColor to whatever you like and this gloss will be drawn on top of that color. You can also draw a radial gradient using the CGContextDrawRadialGradient function.

You just need to size this UIView appropriately and add your UILabel as a subview of it to get the effect you desire.

EDIT (4/23/2009): Per St3fan's suggestion, I have replaced the view's frame with its bounds in the code. This corrects for the case when the view's origin is not (0,0).

If you are using C# 3.0 or higher you can do the following

foreach ( TextBox tb in this.Controls.OfType<TextBox>()) {
  ..
}

Without C# 3.0 you can do the following

foreach ( Control c in this.Controls ) {
  TextBox tb = c as TextBox;
  if ( null != tb ) {
    ...
  }
}

Or even better, write OfType in C# 2.0.

public static IEnumerable<T> OfType<T>(IEnumerable e) where T : class { 
  foreach ( object cur in e ) {
    T val = cur as T;
    if ( val != null ) {
      yield return val;
    }
  }
}

foreach ( TextBox tb in OfType<TextBox>(this.Controls)) {
  ..
}

If you only want the filename (not the full path) use this:

$ScriptName = $MyInvocation.MyCommand.Name

    <?php
if (isset($_POST['birthdate'])) {
    $timestamp = strtotime($_POST['birthdate']); 
    $date=date('d',$timestamp);
    $month=date('m',$timestamp);
    $year=date('Y',$timestamp);
}
?>  

mongoimport -d test -c test --type csv --file SampleCSVFile_119kb.csv --headerline

check collection data:-

var collections = db.getCollectionNames();_x000D_
_x000D_
for(var i = 0; i< collections.length; i++)_x000D_
{    _x000D_
   print('Collection: ' + collections[i]);_x000D_
   // print the name of each collection_x000D_
   _x000D_
   db.getCollection(collections[i]).find().forEach(printjson);_x000D_
   _x000D_
   //and then print the json of each of its elements_x000D_
}

All I had to do was to install this

npm install @angular/animations@latest --save  

and then import

import { BrowserAnimationsModule } from '@angular/platform-browser/animations'; 

into your app.module.ts file.

I am not sure I understood your question, but if you write:

mask_data[:3, :3] = 1
mask_data[3:, 3:] = 0

This will make all values of mask data whose x and y indexes are less than 3 to be equal to 1 and all rest to be equal to 0

button2.Enabled == true ; must be button2.Enabled = true ;.

You have a compare == where you should have an assign =.

I like to make it more dynamic

Class<?> serviceMonitor = MyService.class; 


private void startMyService() { context.startService(new Intent(context, serviceMonitor)); }
private void stopMyService()  { context.stopService(new Intent(context, serviceMonitor));  }

do not forget the Manifest

<service android:enabled="true" android:name=".MyService.class" />

support for document.location is also good though its a deprecated method. I've been using this method for a while with no problems. you can refer here for more details:

https://developer.mozilla.org/en-US/docs/Web/API/document.location

You can list cookies for current domain:

function listCookies() {
    var theCookies = document.cookie.split(';');
    var aString = '';
    for (var i = 1 ; i <= theCookies.length; i++) {
        aString += i + ' ' + theCookies[i-1] + "\n";
    }
    return aString;
}

But you cannot list cookies for other domains for security reasons

Date and time input is accepted in almost any reasonable format, including ISO 8601, SQL-compatible, traditional POSTGRES, and others. For some formats, ordering of month, day, and year in date input is ambiguous and there is support for specifying the expected ordering of these fields.

In other words: just write anything and it will work.

Or check this table with all the unambiguous formats.

Support for multi-root workspaces is now enabled by default in the latest stable release [November 2017 release].

The File > Add Folder to Workspace command brings up an Open Folder dialog to select the new folder.

Playing with the tsconfig.json You can also targeting es5 like this :

{
    "compilerOptions": {
        "experimentalDecorators": true,
        "module": "commonjs", 
        "target": "es5"
    }
    ...

Even with something like an ArrayList or Vector, where "get" is a simple array lookup, the second loop still has additional overhead that the first one doesn't. I would expect it to be a tiny bit slower than the first.

I got the same error and for the issue was that I was on VPN and I didn't realize that. After disconnecting the VPN and reconnecting the wifi resolved it.

List.copyOf ? unmodifiable list

You asked:

Is there no other way to assign a copy of a list

Java 9 brought the List.of methods for using literals to create an unmodifiable List of unknown concrete class.

LocalDate today = LocalDate.now( ZoneId.of( "Africa/Tunis" ) ) ;
List< LocalDate > dates = List.of( 
    today.minusDays( 1 ) ,  // Yesterday
    today ,                 // Today
    today.plusDays( 1 )     // Tomorrow
);

Along with that we also got List.copyOf. This method too returns an unmodifiable List of unknown concrete class.

List< String > colors = new ArrayList<>( 4 ) ;          // Creates a modifiable `List`. 
colors.add ( "AliceBlue" ) ;
colors.add ( "PapayaWhip" ) ;
colors.add ( "Chartreuse" ) ;
colors.add ( "DarkSlateGray" ) ;
List< String > masterColors = List.copyOf( colors ) ;   // Creates an unmodifiable `List`.

By “unmodifiable” we mean the number of elements in the list, and the object referent held in each slot as an element, is fixed. You cannot add, drop, or replace elements. But the object referent held in each element may or may not be mutable.

colors.remove( 2 ) ;          // SUCCEEDS. 
masterColors.remove( 2 ) ;    // FAIL - ERROR.

See this code run live at IdeOne.com.

dates.toString(): [2020-02-02, 2020-02-03, 2020-02-04]

colors.toString(): [AliceBlue, PapayaWhip, DarkSlateGray]

masterColors.toString(): [AliceBlue, PapayaWhip, Chartreuse, DarkSlateGray]

You asked about object references. As others said, if you create one list and assign it to two reference variables (pointers), you still have only one list. Both point to the same list. If you use either pointer to modify the list, both pointers will later see the changes, as there is only one list in memory.

So you need to make a copy of the list. If you want that copy to be unmodifiable, use the List.copyOf method as discussed in this Answer. In this approach, you end up with two separate lists, each with elements that hold a reference to the same content objects. For example, in our example above using String objects to represent colors, the color objects are floating around in memory somewhere. The two lists hold pointers to the same color objects. Here is a diagram.

The first list colors is modifiable. This means that some elements could be removed as seen in code above, where we removed the original 3rd element Chartreuse (index of 2 = ordinal 3). And elements can be added. And the elements can be changed to point to some other String such as OliveDrab or CornflowerBlue.

In contrast, the four elements of masterColors are fixed. No removing, no adding, and no substituting another color. That List implementation is unmodifiable.

I faced the same problem and I've found a pretty clean solution: After Html.fromHtml() you can run an AsyncTask that iterates over all the tags, fetches the images and then displays them.

Here you can find some code that you can use (but it needs some customization): https://gist.github.com/1190397

1. Go to Help > Install New Software...

2. Use this software repository

   Make sure "Contact all update sites during install to find required software" is checked.

3. Install the AJDT m2e Configurator

Source: Upgrading Maven integration for SpringSource Tool Suite 2.8.0 (Andrew Eisenberg)

This should automatically install ADJT if you don't have it installed, but if it doesn't, install AspectJ Development Tools (ADJT) first from "Indigo update site" (according to your Eclipse version).

More info on AspectJ Development Tools site.

You say loop .. so if you want to do this for a dir instead of the current document;

Dim sFile As Variant
Dim oShell: Set oShell = CreateObject("Shell.Application")
Dim oDir:   Set oDir = oShell.Namespace("c:\foo")

For Each sFile In oDir.Items
   Debug.Print oDir.GetDetailsOf(sFile, XXX) 
Next

Where XXX is an attribute column index, 9 for Author for example. To list available indexes for your reference you can replace the for loop with;

for i = 0 To 40
   debug.? i, oDir.GetDetailsOf(oDir.Items, i)
Next

Quickly for a single file/attribute:

Const PROP_COMPUTER As Long = 56

With CreateObject("Shell.Application").Namespace("C:\HOSTDIRECTORY")
    MsgBox .GetDetailsOf(.Items.Item("FILE.NAME"), PROP_COMPUTER)
End With

You need JDK for that.

Set JAVA_HOME to point to the JDK.

I used a different approach to come up with something that does this. I've decided to not use this code in my project, but I thought I'd leave it somewhere relevant in case it is useful for someone.

• Doesn't use bit-shifting or two's complement coercion.
• You choose the number of bits that comes out (it checks for valid values of '8', '16', '32', but I suppose you could change that)
• You choose whether to treat it as a signed or unsigned integer.
• It will check for range issues given the combination of signed/unsigned and number of bits, though you'll want to improve the error handling.
• It also has the "reverse" version of the function which converts the bits back to the int. You'll need that since there's probably nothing else that will interpret this output :D

function intToBitString(input, size, unsigned) {_x000D_
 if ([8, 16, 32].indexOf(size) == -1) {_x000D_
  throw "invalid params";_x000D_
 }_x000D_
 var min = unsigned ? 0 : - (2 ** size / 2);_x000D_
        var limit = unsigned ? 2 ** size : 2 ** size / 2;_x000D_
 if (!Number.isInteger(input) || input < min || input >= limit) {_x000D_
  throw "out of range or not an int";_x000D_
 }_x000D_
 if (!unsigned) {_x000D_
  input += limit;_x000D_
 }_x000D_
 var binary = input.toString(2).replace(/^-/, '');_x000D_
 return binary.padStart(size, '0');_x000D_
}_x000D_
_x000D_
function bitStringToInt(input, size, unsigned) {_x000D_
 if ([8, 16, 32].indexOf(size) == -1) {_x000D_
  throw "invalid params";_x000D_
 }_x000D_
 input = parseInt(input, 2);_x000D_
 if (!unsigned) {_x000D_
  input -= 2 ** size / 2;_x000D_
 }_x000D_
 return input;_x000D_
}_x000D_
_x000D_
_x000D_
// EXAMPLES_x000D_
_x000D_
var res;_x000D_
console.log("(uint8)10");_x000D_
res = intToBitString(10, 8, true);_x000D_
console.log("intToBitString(res, 8, true)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 8, true));_x000D_
console.log("---");_x000D_
_x000D_
console.log("(uint8)127");_x000D_
res = intToBitString(127, 8, true);_x000D_
console.log("intToBitString(res, 8, true)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 8, true));_x000D_
console.log("---");_x000D_
_x000D_
console.log("(int8)127");_x000D_
res = intToBitString(127, 8, false);_x000D_
console.log("intToBitString(res, 8, false)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 8, false));_x000D_
console.log("---");_x000D_
_x000D_
console.log("(int8)-128");_x000D_
res = intToBitString(-128, 8, false);_x000D_
console.log("intToBitString(res, 8, true)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 8, true));_x000D_
console.log("---");_x000D_
_x000D_
console.log("(uint16)5000");_x000D_
res = intToBitString(5000, 16, true);_x000D_
console.log("intToBitString(res, 16, true)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 16, true));_x000D_
console.log("---");_x000D_
_x000D_
console.log("(uint32)5000");_x000D_
res = intToBitString(5000, 32, true);_x000D_
console.log("intToBitString(res, 32, true)");_x000D_
console.log(res);_x000D_
console.log("reverse:", bitStringToInt(res, 32, true));_x000D_
console.log("---");

Syntactically a little different but it looks cleaner in my opinion:

render 'my_partial', locals: { title: "My awesome title" }

# not a big fan of the arrow key syntax
render 'my_partial', :locals => { :title => "My awesome title" }

you can also use:

var path = System.Web.Hosting.HostingEnvironment.MapPath("~/App_Data/myfile.txt")

if

var path = Server.MapPath("~/App_Data");
var fullpath = Path.Combine(path , "myfile.txt");

is inaccessible

If using make, issue with -j. From man make:

  -j [jobs], --jobs[=jobs]
       Specifies the number of jobs (commands) to run simultaneously.  
       If there is more than one -j option, the last one is effective.
       If the -j option is given without an argument, make will not limit the
       number of jobs that can run simultaneously.

And most notably, if you want to script or identify the number of cores you have available (depending on your environment, and if you run in many environments, this can change a lot) you may use ubiquitous Python function cpu_count():

https://docs.python.org/3/library/multiprocessing.html#multiprocessing.cpu_count

Like this:

make -j $(python3 -c 'import multiprocessing as mp; print(int(mp.cpu_count() * 1.5))')

If you're asking why 1.5 I'll quote user artless-noise in a comment above:

The 1.5 number is because of the noted I/O bound problem. It is a rule of thumb. About 1/3 of the jobs will be waiting for I/O, so the remaining jobs will be using the available cores. A number greater than the cores is better and you could even go as high as 2x.

There is a buffer limit of something like 1024. The read will simply hang mid paste or input. To solve this use the -e option.

http://linuxcommand.org/lc3_man_pages/readh.html

-e use Readline to obtain the line in an interactive shell

Change your read to read -e and annoying line input hang goes away.

Though many have already answered the difference between Val and var. But one point to notice is that val is not exactly like final keyword.

We can change the value of val using recursion but we can never change value of final. Final is more constant than Val.

def factorial(num: Int): Int = {
 if(num == 0) 1
 else factorial(num - 1) * num
}

Method parameters are by default val and at every call value is being changed.

Since iOS 8 this is the correct way to do it.

override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
    super.viewWillTransition(to: size, with: coordinator)

    coordinator.animate(alongsideTransition: { context in
        // This is called during the animation
    }, completion: { context in
        // This is called after the rotation is finished. Equal to deprecated `didRotate`
    })
}

check the command : NA!=NA : you'll get the result NA, hence the error message.

You have to use the function is.na for your ifstatement to work (in general, it is always better to use this function to check for NA values) :

comments = c("no","yes",NA)
for (l in 1:length(comments)) {
    if (!is.na(comments[l])) print(comments[l])
}
[1] "no"
[1] "yes"

The following is a simplification/one liner from the accepted answer:

a = [2,3,4,5,6,7,8,9,0]
xyz = [0,12,4,6,242,7,9]

for x in (x for x in xyz if x not in a):
    print(x)

12
242

Notice that the generator was kept inline. This was tested on python2.7 and python3.6 (notice the parens in the print ;) )

Simple utility method:

public static boolean isBetween(int value, int min, int max)
{
  return((value > min) && (value < max));
}

Here is the one of the better solutions.

DECLARE @i int
            DECLARE @curren_val int
            DECLARE @numrows int
            create table #Practitioner (idx int IDENTITY(1,1), PractitionerId int)
            INSERT INTO #Practitioner (PractitionerId) values (10),(20),(30)
            SET @i = 1
            SET @numrows = (SELECT COUNT(*) FROM #Practitioner)
            IF @numrows > 0
            WHILE (@i <= (SELECT MAX(idx) FROM #Practitioner))
            BEGIN

                SET @curren_val = (SELECT PractitionerId FROM #Practitioner WHERE idx = @i)

                --Do something with Id here
                PRINT @curren_val
                SET @i = @i + 1
            END

Here i've add some values in the table beacuse, initially it is empty.

We can access or we can do anything in the body of the loop and we can access the idx by defining it inside the table definition.

              BEGIN
                SET @curren_val = (SELECT PractitionerId FROM #Practitioner WHERE idx = @i)

                --Do something with Id here

                PRINT @curren_val
                SET @i = @i + 1
            END

For those looking for an efficient method to convert an image file to a Base64 string without compression or converting the file to a bitmap first, you can instead encode the file as base64

val base64EncodedImage = FileInputStream(imageItem.localSrc).use {inputStream - >
    ByteArrayOutputStream().use {outputStream - >
            Base64OutputStream(outputStream, Base64.DEFAULT).use {
                base64FilterStream - >
                    inputStream.copyTo(base64FilterStream)
                base64FilterStream.flush()
                outputStream.toString()
            }
      }
}

Hope this helps!

If you want to create a clone using the Function constructor, something like this should work:

_cloneFunction = function(_function){
    var _arguments, _body, _result;
    var _regexFunction = /^function[\s]+[\w]*\(([\w\s,_\$]*)?\)\{(.*)\}$/;
    var _regexArguments = /((?!=^|,)([\w\$_]))+/g;
    var _matches = _function.toString().match(_regexFunction)
    if(_matches){
        if(_matches[1]){
            _result = _matches[1].match(_regexArguments);
        }else{
            _result = [];
        }
        _result.push(_matches[2]);
    }else{
        _result = [];
    }
    var _clone = Function.apply(Function, _result);
    // if you want to add attached properties
    for(var _key in _function){
        _clone[_key] = _function[_key];
    }
    return _clone;
}

A simple test:

(function(){
    var _clone, _functions, _key, _subKey;
    _functions = [
        function(){ return 'anonymous function'; }
        ,function Foo(){ return 'named function'; }
        ,function Bar(){ var a = function(){ return 'function with internal function declaration'; }; return a; }
        ,function Biz(a,boo,c){ return 'function with parameters'; }
    ];
    _functions[0].a = 'a';
    _functions[0].b = 'b';
    _functions[1].b = 'b';
    for(_key in _functions){
        _clone = window._cloneFunction(_functions[_key]);
        console.log(_clone.toString(), _clone);
        console.log('keys:');
        for(_subKey in _clone){
            console.log('\t', _subKey, ': ', _clone[_subKey]);
        }
    }
})()

These clones will lose their names and scope for any closed over variables though.

In newer versions of react-router you want to wrap the routes in a Switch which only renders the first matched component. Otherwise you would see multiple components rendered.

For example:

import React from 'react';
import ReactDOM from 'react-dom';
import {
  BrowserRouter as Router,
  Route,
  browserHistory,
  Switch
} from 'react-router-dom';

import App from './app/App';
import Welcome from './app/Welcome';
import NotFound from './app/NotFound';

const Root = () => (
  <Router history={browserHistory}>
    <Switch>
      <Route exact path="/" component={App}/>
      <Route path="/welcome" component={Welcome}/>
      <Route component={NotFound}/>
    </Switch>
  </Router>
);

ReactDOM.render(
  <Root/>,
  document.getElementById('root')
);

There are two BeanUtils.copyProperties(parameter1, parameter2) in Java.

One is

org.apache.commons.beanutils.BeanUtils.copyProperties(Object dest, Object orig)

Another is

org.springframework.beans.BeanUtils.copyProperties(Object source, Object target)

Pay attention to the opposite position of parameters.

It is also worth noting that even without creating your own model binder multiple different formats may be parsable.

For instance in the US all the following strings are equivalent and automatically get bound to the same DateTime value:

/company/press/may%2001%202008

/company/press/2008-05-01

/company/press/05-01-2008

I'd strongly suggest using yyyy-mm-dd because its a lot more portable. You really dont want to deal with handling multiple localized formats. If someone books a flight on 1st May instead of 5th January you're going to have big issues!

NB: I'm not clear exaclty if yyyy-mm-dd is universally parsed in all cultures so maybe someone who knows can add a comment.

<table style="min-width:50px; max-width:150px;">
    <tr>
        <td style="min-width:50px">one</td>
        <td style="min-width:100px">two</td>
    </tr>
</table>

This works for me using an email script.

I think in this case you will need Write-Output.

If you have a script like

Write-Output "test1";
Write-Host "test2";
"test3";

then, if you call the script with redirected output, something like yourscript.ps1 > out.txt, you will get test2 on the screen test1\ntest3\n in the "out.txt".

Note that "test3" and the Write-Output line will always append a new line to your text and there is no way in PowerShell to stop this (that is, echo -n is impossible in PowerShell with the native commands). If you want (the somewhat basic and easy in Bash) functionality of echo -n then see samthebest's answer.

If a batch file runs a PowerShell command, it will most likely capture the Write-Output command. I have had "long discussions" with system administrators about what should be written to the console and what should not. We have now agreed that the only information if the script executed successfully or died has to be Write-Host'ed, and everything that is the script's author might need to know about the execution (what items were updated, what fields were set, et cetera) goes to Write-Output. This way, when you submit a script to the system administrator, he can easily runthescript.ps1 >someredirectedoutput.txt and see on the screen, if everything is OK. Then send the "someredirectedoutput.txt" back to the developers.

Another solution is described also here in case some of the other scripts does not work in your case.

import datetime
import calendar

day, month, year = map(int, input().split())
my_date = datetime.date(year, month, day)
print(calendar.day_name[my_date.weekday()])

Output Sample

08 05 2015
Friday

tl;dr

I contrast them in two ways:

joins - For conditional selection of records.

includes - When using an association on each member of a result set.

Longer version

Joins is meant to filter the result set coming from the database. You use it to do set operations on your table. Think of this as a where clause that performs set theory.

Post.joins(:comments)

is the same as

Post.where('id in (select post_id from comments)')

Except that if there are more than one comment you will get duplicate posts back with the joins. But every post will be a post that has comments. You can correct this with distinct:

Post.joins(:comments).count
=> 10
Post.joins(:comments).distinct.count
=> 2

In contract, the includes method will simply make sure that there are no additional database queries when referencing the relation (so that we don't make n + 1 queries)

Post.includes(:comments).count
=> 4 # includes posts without comments so the count might be higher.

The moral is, use joins when you want to do conditional set operations and use includes when you are going to be using a relation on each member of a collection.

I agree with the current answers, I just wanna add little more information, Here's a good functionality

if you want to require just zip file but the owner has not prepared a zip file,

To simply download a repository as a zip file: add the extra path /zipball/master/ to the end of the repository URL, This will give you a full ZIP file

For example, here is your repository

https://github.com/spring-projects/spring-data-graph-examples

Add zipball/master/ in your repository link

https://github.com/spring-projects/spring-data-graph-examples/zipball/master/

Paste the URL into your browser and it will give you a zip file to download

You better setup a single test and create a performance test from this test. This way you can monitor the progress using the default tool set.

try out this..

document.getElementById("edName").required = true;

I'm developing a memory profiler for Python called memprof:

http://jmdana.github.io/memprof/

It allows you to log and plot the memory usage of your variables during the execution of the decorated methods. You just have to import the library using:

from memprof import memprof

And decorate your method using:

@memprof

This is an example on how the plots look like:

The project is hosted in GitHub:

https://github.com/jmdana/memprof

You could use FireQuery. It shows any events attached to DOM elements in the Firebug's HTML tab. It also shows any data attached to the elements through $.data.

msg * "Enter Your Message"

Does this help ?

The easiest way to do simple math with Angular is directly in the HTML markup for individual bindings as needed, assuming you don't need to do mass calculations on your page. Here's an example:

{{(data.input/data.input2)| number}} 

In this case you just do the math in the () and then use a filter | to get a number answer. Here's more info on formatting Angular numbers as text:

https://docs.angularjs.org/api/ng/filter

For me it was really silly I had created a ModelClass file without the .php extension. So calling that was giving model not found. So check the extension has .php

vw units:

You can use vw units for both the width and height of the element. This allows the element's aspect ratio to be preserved, based on the viewport width.

vw : 1/100th of the width of the viewport. [MDN]

Alternatively, you can also use vh for viewport height, or even vmin/vmax to use the lesser/greater of the viewport dimensions (discussion here).

Example: 1:1 aspect ratio

div {_x000D_
  width: 20vw;_x000D_
  height: 20vw;_x000D_
  background: gold;_x000D_
}

<div></div>

For other aspect ratios, you can use the following table to calculate the value for height according to the width of the element :

aspect ratio  |  multiply width by
-----------------------------------
     1:1      |         1
     1:3      |         3
     4:3      |        0.75
    16:9      |       0.5625

Example: 4x4 grid of square divs

body {_x000D_
  display: flex;_x000D_
  flex-wrap: wrap;_x000D_
  justify-content: space-between;_x000D_
}_x000D_
div {_x000D_
  width: 23vw;_x000D_
  height: 23vw;_x000D_
  margin: 0.5vw auto;_x000D_
  background: gold;_x000D_
}

<div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div><div></div>

Here is a Fiddle with this demo and here is a solution to make a responsive grid of squares with verticaly and horizontaly centered content.

Browser support for vh/vw units is IE9+ see canIuse for more info

Since you're using LibreSSL, try re-installing curl with OpenSSL instead of Secure Transport.

Latest Brew

All options have been removed from the curl formula, so now you need to install via:

brew install curl-openssl

Older Brew

Install curl with --with-openssl:

brew reinstall curl --with-openssl

Note: If above won't work, check brew options curl to display install options specific to formula.

Here are few other suggestions:

• Make sure you're not using http_proxy/https_proxy.
• Use -v to curl for more verbose output.
• Try using BSD curl at /usr/bin/curl, run which -a curl to list them all.
• Make sure you haven't accidentally blocked curl in your firewall (such as Little Snitch).
• Alternatively use wget.

Assuming Python 3 (in Python 2, this difference is a little less well-defined) - a string is a sequence of characters, ie unicode codepoints; these are an abstract concept, and can't be directly stored on disk. A byte string is a sequence of, unsurprisingly, bytes - things that can be stored on disk. The mapping between them is an encoding - there are quite a lot of these (and infinitely many are possible) - and you need to know which applies in the particular case in order to do the conversion, since a different encoding may map the same bytes to a different string:

>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-16')
'?????'
>>> b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'.decode('utf-8')
'to??o?'

Once you know which one to use, you can use the .decode() method of the byte string to get the right character string from it as above. For completeness, the .encode() method of a character string goes the opposite way:

>>> 'to??o?'.encode('utf-8')
b'\xcf\x84o\xcf\x81\xce\xbdo\xcf\x82'

If you want the date, given a month and a year, this seems about right:

public static DateTime GetLastDayOfMonth(this DateTime dateTime)
{
    return new DateTime(dateTime.Year, dateTime.Month, DateTime.DaysInMonth(dateTime.Year, dateTime.Month));
}

The comments state the objective is to print to 2 decimal places.

There's a simple answer for Python 3:

>>> num=3.65
>>> "The number is {:.2f}".format(num)
'The number is 3.65'

or equivalently with f-strings (Python 3.6+):

>>> num = 3.65
>>> f"The number is {num:.2f}"
'The number is 3.65'

As always, the float value is an approximation:

>>> "{}".format(num)
'3.65'
>>> "{:.10f}".format(num)
'3.6500000000'
>>> "{:.20f}".format(num)
'3.64999999999999991118'

I think most use cases will want to work with floats and then only print to a specific precision.

Those that want the numbers themselves to be stored to exactly 2 decimal digits of precision, I suggest use the decimal type. More reading on floating point precision for those that are interested.

The earlier answer works, but the solution can actually be simpler. Looping through the configured networks list is not required as you get the network id when you add the network through the WifiManager.

So the complete, simplified solution would look something like this:

WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = String.format("\"%s\"", ssid);
wifiConfig.preSharedKey = String.format("\"%s\"", key);

WifiManager wifiManager = (WifiManager)getSystemService(WIFI_SERVICE);
//remember id
int netId = wifiManager.addNetwork(wifiConfig);
wifiManager.disconnect();
wifiManager.enableNetwork(netId, true);
wifiManager.reconnect();

I resolved this issue on centos5.4 by running the following command to install setuptools

yum install python-setuptools

I hope that helps.

Take the number 123.456789

• As an integer, this number would be 123
• As a fixed point (2), this number would be 123.46 (Assuming you rounded it up)
• As a floating point, this number would be 123.456789

Floating point lets you represent most every number with a great deal of precision. Fixed is less precise, but simpler for the computer..

In java.lang.String, the replace method either takes a pair of char's or a pair of CharSequence's (of which String is a subclass, so it'll happily take a pair of String's). The replace method will replace all occurrences of a char or CharSequence. On the other hand, the first String arguments of replaceFirst and replaceAll are regular expressions (regex). Using the wrong function can lead to subtle bugs.

Sometimes the command

adb -s emulator-5554 emu kill

did not work on my CI servers or desktops, for unknown reason. I think on Windows it's OK to kill the process of qemu, just like

Taskkill /IM qemu-system-x86_64.exe /F /T

Here's another way to do it.

In your parent view controller, implement the following method:

- (void) setBackBarButtonItemTitle:(NSString *)newTitle {
  self.navigationItem.backBarButtonItem.title = newTitle;
}

In your child view controller, when you want to change the title, this will work:

NSArray *viewControllerArray = [self.navigationController viewControllers];
int parentViewControllerIndex = [viewControllerArray count] - 2;
[[viewControllerArray objectAtIndex:parentViewControllerIndex] setBackBarButtonItemTitle:@"New Title"];

I was never able to get the parentViewController property to work:

[(ParentViewController *)(self.navigationController.parentViewController) setBackBarButtonItemTitle:@"New Title"];

I don't know if that's a bug or I'm not using it properly. But grabbing the second-to-last view controller in the viewControllers array points to the parent view controller, and I can call parent methods correctly with that reference.

step by step

given you have a textbox as following,

<asp:TextBox ID="TextBox13" runat="server" 
  onkeypress="return functionx(event)" >
</asp:TextBox>

you create a JavaScript function like this:

     <script type = "text/javascript">
         function functionx(evt) 
         {
            if (evt.charCode > 31 && (evt.charCode < 48 || evt.charCode > 57))
                  {
                    alert("Allow Only Numbers");
                    return false;
                  }
          }
     </script>

the first part of the if-statement excludes the ASCII control chars, the or statements exclued anything, that is not a number

set DSKTOPDIR="D:\test"
set IPADDRESS="23.23.3.23"

>%DSKTOPDIR%\script.ftp ECHO cd %PAY_REP%
>>%DSKTOPDIR%\script.ftp ECHO mget *.report
>>%DSKTOPDIR%\script.ftp ECHO bye

:: run PSFTP Commands
psftp <domain>@%IPADDRESS% -b %DSKTOPDIR%\script.ftp

Set values using set commands before above lines.

I believe this helps you.

Referre psfpt setup for below link https://www.ssh.com/ssh/putty/putty-manuals/0.68/Chapter6.html

If you are looking for the oldest date (minimum value), you'd sort and then take the first item returned. Sorry for the C#:

var min = myData.OrderBy( cv => cv.Date1 ).First();

The above will return the entire object. If you just want the date returned:

var min = myData.Min( cv => cv.Date1 );

Regarding which direction to go, re: Linq to Sql vs Linq to Entities, there really isn't much choice these days. Linq to Sql is no longer being developed; Linq to Entities (Entity Framework) is the recommended path by Microsoft these days.

From Microsoft Entity Framework 4 in Action (MEAP release) by Manning Press:

What about the future of LINQ to SQL?

It's not a secret that LINQ to SQL is included in the Framework 4.0 for compatibility reasons. Microsoft has clearly stated that Entity Framework is the recommended technology for data access. In the future it will be strongly improved and tightly integrated with other technologies while LINQ to SQL will only be maintained and little evolved.

At a very high level:

Abstraction of any kind comes down to separating concerns. "Client" code of an abstraction doesn't care how the contract exposed by the abstraction is fulfilled. You usually don't care if a string class uses a null-terminated or buffer-length-tracked internal storage implementation, for example. Encapsulation hides the details, but by making classes/methods/etc. abstract, you allow the implementation to change or for new implementations to be added without affecting the client code.

I'm assume you cannot get css working for your button using anchor tag. So you need to override the css styles which are being overwritten by other elements using !important property.

HTML

<a href="#" class="selected_btn" data-role="button">Button name</a>

CSS

.selected_btn
{
    border:1px solid red;
    text-decoration:none;
    font-family:helvetica;
    color:red !important;            
    background:url('http://www.lessardstephens.com/layout/images/slideshow_big.png') repeat-x;
}

Here is the demo

You can create an html page with a form, having method="post" and action="yourdesiredurl" and open it with your browser.

As an alternative, there are some browser plugins for developers that allow you to do that, like Web Developer Toolbar for Firefox

I have faced same error on Amazon EC2 instance. The issue got fixed after restarting the instance.

You can do this by wrapping the page contents in a div with the following id styling applied:

<style>
#wrap {
   min-height: 100%;
   height: auto !important;
   height: 100%;
   margin: 0 auto -60px;
}
</style>

<div id="wrap">
    <!-- Your page content here... -->
</div>

Worked for me.

First we need to plan how the application will render differently in different locals. Here it shows example, where the text string and images have to go.

de-rDE German / Germany res/values-de/ res/drawable-de-rDE/ 
fr-rFR French / France res/values-fr/ res/drawable-fr-rFR/ 
fr-rCA French / Canada res/values-fr/ res/drawable-fr-rCA/ 
en-rCA English / Canada (res/values/) res/drawable-en-rCA/ 
ja-rJP Japanese / Japan res/values-ja/ res/drawable-ja-rJP/ 
en-rUS English / United States (res/values/) res/drawable-en-rUS/ 

For more info you can see the page Localization

Make sure that the htaccess file is readable by apache:

chmod 644 /var/www/abc/.htaccess 

And make sure the directory it's in is readable and executable:

chmod 755 /var/www/abc/

Ultimately, what you're trying to do with the EXTRA blank lines between each one is a little confusing :)

I think what you really want to do is use Get-ItemProperty. You'll get errors when values are missing, but you can suppress them with -ErrorAction 0 or just leave them as reminders. Because the Registry provider returns extra properties, you'll want to stick in a Select-Object that uses the same properties as the Get-Properties.

Then if you want each property on a line with a blank line between, use Format-List (otherwise, use Format-Table to get one per line).

gci -path hklm:\software\microsoft\windows\currentversion\uninstall |
gp -Name DisplayName, InstallDate | 
select DisplayName, InstallDate | 
fl | out-file addrem.txt

I presume that you're talking about bash strings. There are different types of strings which have a different set of requirements for escaping. eg. Single quotes strings are different from double quoted strings.

The best reference is the Quoting section of the bash manual.

It explains which characters needs escaping. Note that some characters may need escaping depending on which options are enabled such as history expansion.

You can use this code

var str="test_String_ABC";_x000D_
var strReplacedWith=" and ";_x000D_
var currentIndex = str.lastIndexOf("_");_x000D_
str = str.substring(0, currentIndex) + strReplacedWith + str.substring(currentIndex + 1, str.length);_x000D_
_x000D_
alert(str);

You can use Environment Injector Plugin to set environment variables in Jenkins at job and node levels. Below I will show how to set them at job level.

1. From the Jenkins web interface, go to Manage Jenkins > Manage Plugins and install the plugin.

2. Go to your job Configure screen
3. Find Add build step in Build section and select Inject environment variables
4. Set the desired environment variable as VARIABLE_NAME=VALUE pattern. In my case, I changed value of USERPROFILE variable

If you need to define a new environment variable depending on some conditions (e.g. job parameters), then you can refer to this answer.

I would go through the packet capture and see if there are any records that I know I should be seeing to validate that the filter is working properly and to assuage any doubts.

That said, please try the following filter and see if you're getting the entries that you think you should be getting:

dns and ip.dst==159.25.78.7 or dns and ip.src==159.57.78.7

To support the answer by @oberstet, if the cert is not trusted by the browser (for example you get a "this site is not secure, do you want to continue?") one solution is to open the browser options, navigate to the certificates settings and add the host and post that the websocket server is being served from to the certificate provider as an exception.

for example add 'example-wss-domain.org:6001' as an exception to 'Certificate Provider Ltd'.

In firefox, this can be done from 'about:preferences' and searching for 'Certificates'

The idiomatic way is to say:

if(rsData["usr.ursrdaystime"] != DBNull.Value) {
    strLevel = rsData["usr.ursrdaystime"].ToString();
}

This:

rsData = objCmd.ExecuteReader();
rsData.Read();

Makes it look like you're reading exactly one value. Use IDbCommand.ExecuteScalar instead.

1.3 Quick Checklist for Choosing HTTP GET or POST

Use GET if:

    The interaction is more like a question (i.e., it is a safe operation such as a query, read operation, or lookup).

Use POST if:

    The interaction is more like an order, or
    The interaction changes the state of the resource in a way that the user would perceive (e.g., a subscription to a service), or
    The user be held accountable for the results of the interaction.

Source.

.a files are created with the ar utility, and they are libraries. To use it with gcc, collect all .a files in a lib/ folder and then link with -L lib/ and -l<name of specific library>.

Collection of all .a files into lib/ is optional. Doing so makes for better looking directories with nice separation of code and libraries, IMHO.

The problem you face is that you try to assign the return of imshow (which is an matplotlib.image.AxesImage to an existing axes object.

The correct way of plotting image data to the different axes in axarr would be

f, axarr = plt.subplots(2,2)
axarr[0,0].imshow(image_datas[0])
axarr[0,1].imshow(image_datas[1])
axarr[1,0].imshow(image_datas[2])
axarr[1,1].imshow(image_datas[3])

The concept is the same for all subplots, and in most cases the axes instance provide the same methods than the pyplot (plt) interface. E.g. if ax is one of your subplot axes, for plotting a normal line plot you'd use ax.plot(..) instead of plt.plot(). This can actually be found exactly in the source from the page you link to.

var tabsHeight = 650;

$("tabs").attr('style', 'height: '+ tabsHeight +'px !important');

OR

#CSS
.myclass{height:650px !important;}

then

$("tabs").addClass("myclass");

By using Server.Transfer("YourCurrentPage.aspx"); we can easily acheive this and it is better than Response.Redirect(); coz Server.Transfer() will save you the round trip.

Are you meaning?

data2 <- data1[good,]

With

data1[good]

you're selecting columns in a wrong way (using a logical vector of complete rows).

Consider that parameter pollutant is not used; is it a column name that you want to extract? if so it should be something like

data2 <- data1[good, pollutant]

Furthermore consider that you have to rbind the data.frames inside the for loop, otherwise you get only the last data.frame (its completed.cases)

And last but not least, i'd prefer generating filenames eg with

id <- 1:322
paste0( directory, "/", gsub(" ", "0", sprintf("%3d",id)), ".csv")

A little modified chunk of ?sprintf

The string fmt (in our case "%3d") contains normal characters, which are passed through to the output string, and also conversion specifications which operate on the arguments provided through .... The allowed conversion specifications start with a % and end with one of the letters in the set aAdifeEgGosxX%. These letters denote the following types:

• d: integer

Eg a more general example

    sprintf("I am %10d years old", 25)
[1] "I am         25 years old"
          ^^^^^^^^^^
          |        |
          1       10

Your updateVelocity() method is missing the explicit self parameter in its definition.

Should be something like this:

def updateVelocity(self):    
    for x in range(0,len(self.velocity)):
        self.velocity[x] = 2*random.random()*(self.pbestx[x]-self.current[x]) + 2 \
          * random.random()*(self.gbest[x]-self.current[x])

Your other methods (except for __init__) have the same problem.

Several ways to accomplish that but be aware that your DB date_format option & date_order option settings could affect the incoming format:

Select 
   cast('2008-09-16' as date)
   convert(date,'16/09/2008',103)
   date('2008-09-16')
from dummy;

I found mine at

~/apache-tomcat-7.0.25/logs/catalina.out

Try the :host > /deep/ :

Add the following to the parent.component.less file

:host {
    /deep/ app-child-component {
       //your child style
    }
}

Replace the app-child-component by your child selector

If you want to only trigger validation when the input looses focus you can use onBlur

Trivia: React <17 listens to blur event and >=17 listens to focusout event.

You can plot several columns at once by supplying a list of column names to the plot's y argument.

df.plot(x="X", y=["A", "B", "C"], kind="bar")

This will produce a graph where bars are sitting next to each other.

In order to have them overlapping, you would need to call plot several times, and supplying the axes to plot to as an argument ax to the plot.

import pandas as pd
import matplotlib.pyplot as plt
import numpy as np

y = np.random.rand(10,4)
y[:,0]= np.arange(10)
df = pd.DataFrame(y, columns=["X", "A", "B", "C"])

ax = df.plot(x="X", y="A", kind="bar")
df.plot(x="X", y="B", kind="bar", ax=ax, color="C2")
df.plot(x="X", y="C", kind="bar", ax=ax, color="C3")

plt.show()

I struggled to get this working. That's why I'll add a complete solution here:

My objective is to add this header to the SOAP envelope:

   <soapenv:Header>
      <urn:OTAuthentication>
         <urn:AuthenticationToken>TOKEN</urn:AuthenticationToken>
      </urn:OTAuthentication>
   </soapenv:Header>

1. First create a SOAPHeaderHandler class.

   import java.util.Set;
   import java.util.TreeSet;
   
   import javax.xml.namespace.QName;
   import javax.xml.soap.SOAPElement;
   import javax.xml.soap.SOAPEnvelope;
   import javax.xml.soap.SOAPFactory;
   import javax.xml.soap.SOAPHeader;
   import javax.xml.ws.handler.MessageContext;
   import javax.xml.ws.handler.soap.SOAPHandler;
   import javax.xml.ws.handler.soap.SOAPMessageContext;
   
   public class SOAPHeaderHandler implements SOAPHandler<SOAPMessageContext> {
   
       private final String authenticatedToken;
   
       public SOAPHeaderHandler(String authenticatedToken) {
           this.authenticatedToken = authenticatedToken;
       }
   
       public boolean handleMessage(SOAPMessageContext context) {
           Boolean outboundProperty =
                   (Boolean) context.get(MessageContext.MESSAGE_OUTBOUND_PROPERTY);
           if (outboundProperty.booleanValue()) {
               try {
                   SOAPEnvelope envelope = context.getMessage().getSOAPPart().getEnvelope();
                   SOAPFactory factory = SOAPFactory.newInstance();
                   String prefix = "urn";
                   String uri = "urn:api.ecm.opentext.com";
                   SOAPElement securityElem =
                           factory.createElement("OTAuthentication", prefix, uri);
                   SOAPElement tokenElem =
                           factory.createElement("AuthenticationToken", prefix, uri);
                   tokenElem.addTextNode(authenticatedToken);
                   securityElem.addChildElement(tokenElem);
                   SOAPHeader header = envelope.addHeader();
                   header.addChildElement(securityElem);
               } catch (Exception e) {
                   e.printStackTrace();
               }
           } else {
               // inbound
           }
           return true;
       }
   
       public Set<QName> getHeaders() {
           return new TreeSet();
       }
   
       public boolean handleFault(SOAPMessageContext context) {
           return false;
       }
   
       public void close(MessageContext context) {
           //
       }
   }
   

   2. Add the handler to the proxy. Note that according javax.xml.ws.Binding's documentation: "If the returned chain is modified a call to setHandlerChain is required to configure the binding instance with the new chain."

   Authentication_Service authentication_Service = new Authentication_Service();
   
   Authentication basicHttpBindingAuthentication = authentication_Service.getBasicHttpBindingAuthentication();
   String authenticatedToken = "TOKEN";
   List<Handler> handlerChain = ((BindingProvider)basicHttpBindingAuthentication).getBinding().getHandlerChain();
   handlerChain.add(new SOAPHeaderHandler(authenticatedToken));
   ((BindingProvider)basicHttpBindingAuthentication).getBinding().setHandlerChain(handlerChain);
   

You should probably use either DateTime.ParseExact or DateTime.TryParseExact instead. They allow you to specify specific formats. I personally prefer the Try-versions since I think they produce nicer code for the error cases.

You can wrap the text as well. PFB sample code:

CellStyle wrapCellStyle = new_workbook.createCellStyle();
                    wrapCellStyle.setWrapText(true);

In python 3.5+ inheritance looks predictable and very nice for me. Please looks at this code:

class Base(object):
  def foo(self):
    print("    Base(): entering")
    print("    Base(): exiting")


class First(Base):
  def foo(self):
    print("   First(): entering Will call Second now")
    super().foo()
    print("   First(): exiting")


class Second(Base):
  def foo(self):
    print("  Second(): entering")
    super().foo()
    print("  Second(): exiting")


class Third(First, Second):
  def foo(self):
    print(" Third(): entering")
    super().foo()
    print(" Third(): exiting")


class Fourth(Third):
  def foo(self):
    print("Fourth(): entering")
    super().foo()
    print("Fourth(): exiting")

Fourth().foo()
print(Fourth.__mro__)

Outputs:

Fourth(): entering
 Third(): entering
   First(): entering Will call Second now
  Second(): entering
    Base(): entering
    Base(): exiting
  Second(): exiting
   First(): exiting
 Third(): exiting
Fourth(): exiting
(<class '__main__.Fourth'>, <class '__main__.Third'>, <class '__main__.First'>, <class '__main__.Second'>, <class '__main__.Base'>, <class 'object'>)

As you can see, it calls foo exactly ONE time for each inherited chain in the same order as it was inherited. You can get that order by calling .mro :

Fourth -> Third -> First -> Second -> Base -> object

var arr = []
while(arr.length < 8){
  var randomnumber=Math.ceil(Math.random()*100)
  if(arr.indexOf(randomnumber) === -1){arr.push(randomnumber)}  
}
document.write(arr);

shorter than other answers I've seen

Or use new try with resources clause combined with Scanner:

   try (Scanner scanner = new Scanner(value)) {
        while (scanner.hasNextLine()) {
            String line = scanner.nextLine();
            // process the line
        }
    }

An other simply way:

var fn = function () {}
if (fn.constructor === Function) {
  // true
} else {
  // false
}

1. Use Update.

Drawing from Van Nguyen's answer above, use update instead of save. This gives you access to the upsert option.

NOTE: This method overrides the entire document when found (From the docs)

var conditions = { name: 'borne' }   , update = { $inc: { visits: 1 }} , options = { multi: true };

Model.update(conditions, update, options, callback);

function callback (err, numAffected) {   // numAffected is the number of updated documents })

1.a. Use $set

If you want to update a selection of the document, but not the whole thing, you can use the $set method with update. (again, From the docs)... So, if you want to set...

var query = { name: 'borne' };  Model.update(query, ***{ name: 'jason borne' }***, options, callback)

Send it as...

Model.update(query, ***{ $set: { name: 'jason borne' }}***, options, callback)

This helps prevent accidentally overwriting all of your document(s) with { name: 'jason borne' }.

Expanding on @carestad example, which I find easier, is to run the script with cron and have the environment in the script.

In crontab -e file:

SHELL=/bin/bash

*/1 * * * * $HOME/cron_job.sh

In cron_job.sh file:

#!/bin/bash
source $HOME/.bash_profile
some_other_cmd

Any command after the source of .bash_profile will have your environment as if you logged in.

Do you mean you want to use a formula in VBA? Something like:

Dim iVal As Integer
iVal = Application.WorksheetFunction.COUNTIF(Range("A1:A10"),"Green")

should work.

You can have a pair of extension methods to make this task easier:

public static string ToDelimitedString<T>(this IEnumerable<T> lst, string separator = ", ")
{
    return lst.ToDelimitedString(p => p, separator);
}

public static string ToDelimitedString<S, T>(this IEnumerable<S> lst, Func<S, T> selector, 
                                             string separator = ", ")
{
    return string.Join(separator, lst.Select(selector));
}

So now just:

new int[] { 1, 2, 3, 4, 5 }.ToDelimitedString();

Try git difftool

Use git difftool instead of git diff. You'll never go back.

UPDATE to add an example usage:

Here is a link to another stackoverflow that talks about git difftool: How do I view 'git diff' output with my preferred diff tool/ viewer?

For newer versions of git, the difftool command supports many external diff tools out-of-the-box. For example vimdiff is auto supported and can be opened from the command line by:

cd /path/to/git/repo
git difftool --tool=vimdiff

Other supported external diff tools are listed via git difftool --tool-help here is an example output:

'git difftool --tool=<tool>' may be set to one of the following:
        araxis
        kompare
        vimdiff
        vimdiff2

The following tools are valid, but not currently available:
        bc3
        codecompare
        deltawalker
        diffuse
        ecmerge
        emerge
        gvimdiff
        gvimdiff2
        kdiff3
        meld
        opendiff
        tkdiff
        xxdiff

getActivity().getFragmentManager() This worked or me.

Also take a look at here.

 $(document).ready(function () {
        $(".input1").keyup(function (e) {
            if (e.keyCode == 13) {
                // Do something
            }
        });
    });

The following code will replace all non ASCII characters with question marks.

"".join([x if ord(x) < 128 else '?' for x in s])

You can get the total number of rows containing a specific name using:

SELECT COUNT(*) FROM tbl_foo WHERE name = 'sarmen'

Given the count, you can now get the nth row using:

SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT (n - 1), 1

Where 1 <= n <= COUNT(*) from the first query.

Example:

getting the 3rd row

SELECT * FROM tbl_foo WHERE name = 'sarmen' LIMIT 2, 1

I would write GetValue as below

public static T GetValue<T>(this JToken jToken, string key, T defaultValue = default(T))
{
    dynamic ret = jToken[key];
    if (ret == null) return defaultValue;
    if (ret is JObject) return JsonConvert.DeserializeObject<T>(ret.ToString());
    return (T)ret;
}

This way you can get the value of not only the basic types but also complex objects. Here is a sample

public class ClassA
{
    public int I;
    public double D;
    public ClassB ClassB;
}
public class ClassB
{
    public int I;
    public string S;
}

var jt = JToken.Parse("{ I:1, D:3.5, ClassB:{I:2, S:'test'} }");

int i1 = jt.GetValue<int>("I");
double d1 = jt.GetValue<double>("D");
ClassB b = jt.GetValue<ClassB>("ClassB");

Yes, you can do it by specifying the comparison method. The advantage is the sorted object don't have to be IComparable

   aListOfObjects.Sort((x, y) =>
   {
       int result = x.A.CompareTo(y.A);
       return result != 0 ? result : x.B.CompareTo(y.B);
   });

import os

# Set the path
path = 'a\\b\\c'  
# save current working directory
saved_cwd = os.getcwd()
# change your cwd to the directory which contains files
os.chdir(path)
os.rename('a.txt', 'b.klm')
# moving back to the directory you were in 
os.chdir(saved_cwd)

<?
ob_start(); // ensures anything dumped out will be caught

// do stuff here
$url = 'http://example.com/thankyou.php'; // this can be set based on whatever

// clear out the output buffer
while (ob_get_status()) 
{
    ob_end_clean();
}

// no redirect
header( "Location: $url" );
?>

You need to check your config file if it has correct values such as systempath and artifact Id.

    <dependency>
    <groupId>com.oracle</groupId>
    <artifactId>ojdbc6</artifactId>
    <version>1.0</version>
    <scope>system</scope>
    <systemPath>C:\Users\Akshay\Downloads\ojdbc6.jar</systemPath>
    </dependency> 

I believe the first thing you need to do is enable the package restore feature. See also here. This is done at the solution (not project) level.

But that won't get you all the way -- I ran into a similar issue after having enabled the restore feature. (VS2013, NuGet 2.8.)

It turned out I had (unintentionally) committed the packages to source control when I committed the project -- but Visual Studio (and the source control plugin) had helpfully ignored the binaries when performing the check-in.

The problem arose when I created a release branch. My local copy of the dev/main/trunk branch had the binaries, because that's where I had originally installed/downloaded the packages.
However, in the new release branch,

• the package folders and .nupkg files were all there -- so NuGet didn't think there was anything to restore;
• but at the same time, none of the DLLs were present -- i.e. the third-party references were missing -- so I couldn't build.

I deleted all the package folders in $(SolutionDir)/packages (under the release branch) and then ran a full rebuild, and this time the build succeeded.
... and then of course I went back and removed the package folders from source control (in the trunk and release branch). I'm not clear (yet) on whether the repositories.config file should be removed as well.

Many of the components installed for you by the project templates -- at least for web projects -- are NuGet packages. That is, this issue is not limited to packages you've added.
So enable package restore immediately after creating the project/solution, and before you perform an initial check-in, clear the packages folder (and make sure you commit the .nuget folder to source control).

Disclaimer: I saw another answer here on SO which indicated that clearing the packages folder was part of the resolution. That put me on the right track, so I'd like to give the author credit, but I can no longer locate that question/answer. I'll post an edit if I stumble across it.

I'd also note that Update-Package -reinstall will modify the .sln and .csproj/.vbproj files. At least that's what it did in my case. Which IMHO makes this option much less attractive.

I found this suggestion useful in my case:

  def product_params
    params.require(:product).permit(:name).tap do |whitelisted|
      whitelisted[:data] = params[:product][:data]
    end
  end

Check this link of Xavier's comment on github.

This approach whitelists the entire params[:measurement][:groundtruth] object.

Using the original questions attributes:

  def product_params
    params.require(:measurement).permit(:name, :groundtruth).tap do |whitelisted|
      whitelisted[:groundtruth] = params[:measurement][:groundtruth]
    end
  end

Improving on the answer by musiphil, you can write a standard deviation function without the temporary vector diff, just using a single inner_product call with the C++11 lambda capabilities:

double stddev(std::vector<double> const & func)
{
    double mean = std::accumulate(func.begin(), func.end(), 0.0) / func.size();
    double sq_sum = std::inner_product(func.begin(), func.end(), func.begin(), 0.0,
        [](double const & x, double const & y) { return x + y; },
        [mean](double const & x, double const & y) { return (x - mean)*(y - mean); });
    return std::sqrt(sq_sum / func.size());
}

I suspect doing the subtraction multiple times is cheaper than using up additional intermediate storage, and I think it is more readable, but I haven't tested the performance yet.

From Android Studio v3 and up, Infer Constraint was removed from the dropdown.

Use the magic wand icon in the toolbar menu above the design preview; there is the "Infer Constraints" button. Click on this button, this will automatically add some lines in the text field and the red line will be removed.

If you haven't committed anything since, just git rm the file and git commit --amend.

If you have

git filter-branch \
--index-filter 'git rm --cached --ignore-unmatch path/to/file/filename.orig' merge-point..HEAD

will go through each change from merge-point to HEAD, delete filename.orig and rewrite the change. Using --ignore-unmatch means the command won't fail if for some reason filename.orig is missing from a change. That's the recommended way from the Examples section in the git-filter-branch man page.

Note for Windows users: The file path must use forward slashes

After trying all the most upvoted answers and failing to make it work, I figured that my Android Simulator was on Airplane mode. Quite silly but posting this so it could save some time.

P.S. I had a safe reboot on my Simulator before this, which is probably the cause why my simulator booted in Airplane mode

Expanding on roryhewitt answer.

An advantage to using .cmd files over DOSKEY is that these "aliases" are then available in other shells such as PowerShell or WSL (Windows subsystem for Linux).

The only gotcha with using these commands in bash is that it may take a bit more setup since you might need to do some path manipulation before calling your "alias".

eg I have vs.cmd which is my "alias" for editing a file in Visual Studio

@echo off
if [%1]==[] goto nofiles
start "" "c:\Program Files (x86)\Microsoft Visual Studio 
11.0\Common7\IDE\devenv.exe" /edit %1
goto end
:nofiles
start "" "C:\Program Files (x86)\Microsoft Visual Studio 
11.0\Common7\IDE\devenv.exe" "[PATH TO MY NORMAL SLN]"
:end

Which fires up VS (in this case VS2012 - but adjust to taste) using my "normal" project with no file given but when given a file will attempt to attach to a running VS opening that file "within that project" rather than starting a new instance of VS.

For using this from bash I then add an extra level of indirection since "vs Myfile" wouldn't always work

alias vs='/usr/bin/run_visual_studio.sh'

Which adjusts the paths before calling the vs.cmd

#!/bin/bash
cmd.exe /C 'c:\Windows\System32\vs.cmd' "`wslpath.sh -w -r $1`"

So this way I can just do

vs SomeFile.txt

In either a command prompt, Power Shell or bash and it opens in my running Visual Studio for editing (which just saves my poor brain from having to deal with VI commands or some such when I've just been editing in VS for hours).

It is due permission problem,

sudo chown -R $USER /path to your python installed directory

default it would be /usr/local/lib/python2.7/

or try,

pip install --user -r package_name

and then say, pip install -r requirements.txt this will install inside your env

dont say, sudo pip install -r requirements.txt this is will install into arbitrary python path.

Shorter explanation:

In C++, struct and class were just two sides of the same coin. The only real difference is that one was public by default and the other was private.

In .NET, there is a much greater difference between a struct and a class. The main thing is that struct provides value-type semantics, while class provides reference-type semantics. When you start thinking about the implications of this change, other changes start to make more sense as well, including the constructor behavior you describe.

Non in-place solution

arr.slice(0,i).concat(arr.slice(i+1));

let arr = [10, 20, 30, 40, 50]_x000D_
_x000D_
let i = 2 ; // position to remove (starting from 0)_x000D_
let r = arr.slice(0,i).concat(arr.slice(i+1));_x000D_
_x000D_
console.log(r);

How to get Color from Hexadecimal color code using .NET?

This I think is what you are after, hope it answers your question.

To get your code to work use Convert.ToByte instead of Convert.ToInt...

string colour = "#ffaacc";

Color.FromRgb(
Convert.ToByte(colour.Substring(1,2),16),
Convert.ToByte(colour.Substring(3,2),16),
Convert.ToByte(colour.Substring(5,2),16));

A variant of the others that keeps the logging and queue thread separate.

"""sample code for logging in subprocesses using multiprocessing

* Little handler magic - The main process uses loggers and handlers as normal.
* Only a simple handler is needed in the subprocess that feeds the queue.
* Original logger name from subprocess is preserved when logged in main
  process.
* As in the other implementations, a thread reads the queue and calls the
  handlers. Except in this implementation, the thread is defined outside of a
  handler, which makes the logger definitions simpler.
* Works with multiple handlers.  If the logger in the main process defines
  multiple handlers, they will all be fed records generated by the
  subprocesses loggers.

tested with Python 2.5 and 2.6 on Linux and Windows

"""

import os
import sys
import time
import traceback
import multiprocessing, threading, logging, sys

DEFAULT_LEVEL = logging.DEBUG

formatter = logging.Formatter("%(levelname)s: %(asctime)s - %(name)s - %(process)s - %(message)s")

class SubProcessLogHandler(logging.Handler):
    """handler used by subprocesses

    It simply puts items on a Queue for the main process to log.

    """

    def __init__(self, queue):
        logging.Handler.__init__(self)
        self.queue = queue

    def emit(self, record):
        self.queue.put(record)

class LogQueueReader(threading.Thread):
    """thread to write subprocesses log records to main process log

    This thread reads the records written by subprocesses and writes them to
    the handlers defined in the main process's handlers.

    """

    def __init__(self, queue):
        threading.Thread.__init__(self)
        self.queue = queue
        self.daemon = True

    def run(self):
        """read from the queue and write to the log handlers

        The logging documentation says logging is thread safe, so there
        shouldn't be contention between normal logging (from the main
        process) and this thread.

        Note that we're using the name of the original logger.

        """
        # Thanks Mike for the error checking code.
        while True:
            try:
                record = self.queue.get()
                # get the logger for this record
                logger = logging.getLogger(record.name)
                logger.callHandlers(record)
            except (KeyboardInterrupt, SystemExit):
                raise
            except EOFError:
                break
            except:
                traceback.print_exc(file=sys.stderr)

class LoggingProcess(multiprocessing.Process):

    def __init__(self, queue):
        multiprocessing.Process.__init__(self)
        self.queue = queue

    def _setupLogger(self):
        # create the logger to use.
        logger = logging.getLogger('test.subprocess')
        # The only handler desired is the SubProcessLogHandler.  If any others
        # exist, remove them. In this case, on Unix and Linux the StreamHandler
        # will be inherited.

        for handler in logger.handlers:
            # just a check for my sanity
            assert not isinstance(handler, SubProcessLogHandler)
            logger.removeHandler(handler)
        # add the handler
        handler = SubProcessLogHandler(self.queue)
        handler.setFormatter(formatter)
        logger.addHandler(handler)

        # On Windows, the level will not be inherited.  Also, we could just
        # set the level to log everything here and filter it in the main
        # process handlers.  For now, just set it from the global default.
        logger.setLevel(DEFAULT_LEVEL)
        self.logger = logger

    def run(self):
        self._setupLogger()
        logger = self.logger
        # and here goes the logging
        p = multiprocessing.current_process()
        logger.info('hello from process %s with pid %s' % (p.name, p.pid))


if __name__ == '__main__':
    # queue used by the subprocess loggers
    queue = multiprocessing.Queue()
    # Just a normal logger
    logger = logging.getLogger('test')
    handler = logging.StreamHandler()
    handler.setFormatter(formatter)
    logger.addHandler(handler)
    logger.setLevel(DEFAULT_LEVEL)
    logger.info('hello from the main process')
    # This thread will read from the subprocesses and write to the main log's
    # handlers.
    log_queue_reader = LogQueueReader(queue)
    log_queue_reader.start()
    # create the processes.
    for i in range(10):
        p = LoggingProcess(queue)
        p.start()
    # The way I read the multiprocessing warning about Queue, joining a
    # process before it has finished feeding the Queue can cause a deadlock.
    # Also, Queue.empty() is not realiable, so just make sure all processes
    # are finished.
    # active_children joins subprocesses when they're finished.
    while multiprocessing.active_children():
        time.sleep(.1)

This function will round either be order of magnitude (right to left) or by digits the same way that format treats floating point decimal places (left to right:

def intround(n, p):
    ''' rounds an intger. if "p"<0, p is a exponent of 10; if p>0, left to right digits '''
    if p==0: return n
    if p>0:  
        ln=len(str(n))  
        p=p-ln+1 if n<0 else p-ln
    return (n + 5 * 10**(-p-1)) // 10**-p * 10**-p

>>> tgt=5555555
>>> d=2
>>> print('\t{} rounded to {} places:\n\t{} right to left \n\t{} left to right'.format(
        tgt,d,intround(tgt,-d), intround(tgt,d))) 

Prints

5555555 rounded to 2 places:
5555600 right to left 
5600000 left to right

You can also use Decimal class:

import decimal
import sys

def ri(i, prec=6):
    ic=long if sys.version_info.major<3 else int
    with decimal.localcontext() as lct:
        if prec>0:
            lct.prec=prec
        else:
            lct.prec=len(str(decimal.Decimal(i)))+prec  
        n=ic(decimal.Decimal(i)+decimal.Decimal('0'))
    return n

On Python 3 you can reliably use round with negative places and get a rounded integer:

def intround2(n, p):
    ''' will fail with larger floating point numbers on Py2 and require a cast to an int '''
    if p>0:
        return round(n, p-len(str(n))+1)
    else:
        return round(n, p)    

On Python 2, round will fail to return a proper rounder integer on larger numbers because round always returns a float:

>>> round(2**34, -5)
17179900000.0                     # OK
>>> round(2**64, -5)
1.84467440737096e+19              # wrong 

The other 2 functions work on Python 2 and 3

These steps worked for me:

1. Install Dory Certificate Android app on your mobile device: https://play.google.com/store/apps/details?id=io.tempage.dorycert&hl=en_US
2. Connect mobile device to laptop with USB Cable.
3. Create root folder on Internal Phone memory, copy the certificate file in that folder and disconnect cable.
4. Open Dory Certificate Android app, click the round [+] button and select the right Import File Certificate option.
5. Select format, provide a name (I typed same as filename), browse the certificate file and click the [OK].
6. Three cards will list up. I ignored the card that only had the [SIGN CSR] button and proceeded to click the [INSTALL] button on the two other cards.
7. I refreshed the PWA web app I had opened no my mobile Chrome (it is hosted on a local IIS Web Server) and voala! No chrome warning message. The green lock was there. It was Working.

Alternatively, I found these options which I had no need to try myself but looked easy to follow:

• Apple Device: http://help.netmotionsoftware.com/support/docs/mobilityxg/1100/help/mobilityhelp.htm#page/Mobility%2520Server%2Fconfig.05.083.html%23
• Android Device: http://help.netmotionsoftware.com/support/docs/mobilityxg/1100/help/mobilityhelp.htm#page/Mobility%20Server/config.05.084.html

Finally, it may not be relevant but, if you are looking to create and setup a self-signed certificate (with mkcert) for your PWA app (website) hosted on a local IIS Web server, I followed this page:

https://medium.com/@aweber01/locally-trusted-development-certificates-with-mkcert-and-iis-e09410d92031

Thanks and hope it helps!! :)

For IntelliJ in Mac

View -> Quick Switch theme (^`)-> color schema

Your question is unclear. If you're asking how you can do this in a simpler way, you should take a look at the ECMAScript 5th edition method .bind(), which is a member of Function.prototype. Using it, you can do something like this:

function tryMe (param1, param2) {
    alert (param1 + " and " + param2);
}

function callbackTester (callback) {
    callback();
}

callbackTester(tryMe.bind(null, "hello", "goodbye"));

You can also use the following code, which adds the method if it isn't available in the current browser:

// From Prototype.js
if (!Function.prototype.bind) { // check if native implementation available
  Function.prototype.bind = function(){ 
    var fn = this, args = Array.prototype.slice.call(arguments),
        object = args.shift(); 
    return function(){ 
      return fn.apply(object, 
        args.concat(Array.prototype.slice.call(arguments))); 
    }; 
  };
}

Example

bind() - PrototypeJS Documentation

After calling GroupBy, you get a series of groups IEnumerable<Grouping>, where each Grouping itself exposes the Key used to create the group and also is an IEnumerable<T> of whatever items are in your original data set. You just have to call Count() on that Grouping to get the subtotal.

foreach(var line in data.GroupBy(info => info.metric)
                        .Select(group => new { 
                             Metric = group.Key, 
                             Count = group.Count() 
                        })
                        .OrderBy(x => x.Metric))
{
     Console.WriteLine("{0} {1}", line.Metric, line.Count);
}

I'm assuming you already have a list/array of some class that looks like

class UserInfo {
    string name;
    int metric;
    ..etc..
} 
...
List<UserInfo> data = ..... ;

When you do data.GroupBy(x => x.metric), it means "for each element x in the IEnumerable defined by data, calculate it's .metric, then group all the elements with the same metric into a Grouping and return an IEnumerable of all the resulting groups. Given your example data set of

    <DATA>           | Grouping Key (x=>x.metric) |
joe  1 01/01/2011 5  | 1
jane 0 01/02/2011 9  | 0
john 2 01/03/2011 0  | 2
jim  3 01/04/2011 1  | 3
jean 1 01/05/2011 3  | 1
jill 2 01/06/2011 5  | 2
jeb  0 01/07/2011 3  | 0
jenn 0 01/08/2011 7  | 0

it would result in the following result after the groupby:

(Group 1): [joe  1 01/01/2011 5, jean 1 01/05/2011 3]
(Group 0): [jane 0 01/02/2011 9, jeb  0 01/07/2011 3, jenn 0 01/08/2011 7]
(Group 2): [john 2 01/03/2011 0, jill 2 01/06/2011 5]
(Group 3): [jim  3 01/04/2011 1]

If the function is a void, ending the function will return. Otherwise, you need to do an explicit return someValue. As Mark mentioned, you can also throw an exception. What's the context of your question? Do you have a larger code sample with which to show you some ways to exit the function?

First you can use a Paginator. This is as simple as:

$allUsers = User::paginate(15);

$someUsers = User::where('votes', '>', 100)->paginate(15);

The variables will contain an instance of Paginator class. all of your data will be stored under data key.

Or you can do something like:

Old versions Laravel.

Model::all()->take(10)->get();

Newer version Laravel.

Model::all()->take(10);

For more reading consider these links:

• pagination docs
• passing data to views
• Eloquent basic usage
• A cheat sheet

Start the program with -Xms=[size] -Xmx -XX:MaxPermSize=[size] -XX:MaxNewSize=[size]

For example -

-Xms512m -Xmx1152m -XX:MaxPermSize=256m -XX:MaxNewSize=256m

Change string[] lines = File.ReadLines("c:\\file.txt"); to IEnumerable<string> lines = File.ReadLines("c:\\file.txt"); The rest of your code should work fine.

I was facing similar issue on my mac, and I found that docker wasn't running in my machine, I just went to applications and invoked whale and then it worked .

The documentation is hear https://laravel.com/docs/5.4/views#view-composers but i will break it down

1. Look for the directory app\Providers in the root directory of your application and create the file ComposerServiceProvider.php and copy and past the text below into it and save it.

   <?php
       namespace App\Providers;
       use Illuminate\Support\Facades\View;
       use Illuminate\Support\ServiceProvider;
   
       class ComposerServiceProvider extends ServiceProvider
       {
           /**
           * Register bindings in the container.
           *
           * @return void
           */
       public function boot()
       {
           // Using class based composers...
           View::composer(
               'profile', 'App\Http\ViewComposers\ProfileComposer'
           );
   
           // Using Closure based composers...
           View::composer('dashboard', function ($view) {
               //
           });
       }
   
       /**
       * Register the service provider.
       *
       * @return void
       */
       public function register()
       {
           //
       }
   }
   

2. From the root of your application open Config/app.php and look for the Providers section in the file and copy and past this 'App\Providers\ComposerServiceProvider', to the array.

By doing this, we have created the Composer Service Provider. When you run your application with the view Profile like so http://yourdomain/something/profile, the service provider ComposerServiceProvider is called and the class App\Http\ViewComposers\ProfileComposer is instantiated calling the method Composer due to the code below inside the boot method or function.

 // Using class based composers...
 View::composer(
   'profile', 'App\Http\ViewComposers\ProfileComposer'
 );

3. If you refresh your application you will get an error because the class App\Http\ViewComposers\ProfileComposer does not exist yet. Now lets create it.

Go to the directory path app/Http

• Create the directory called ViewComposers

• Create the file ProfileComposer.php.

  class ProfileComposer
  {
      /**
      * The user repository implementation.
      *
      * @var UserRepository
      */
      protected $users;
  
      /**
      * Create a new profile composer.
      *
      * @param  UserRepository  $users
      * @return void
      */
      public function __construct(UserRepository $users)
      {
          // Dependencies automatically resolved by service container...
          $this->users = $users;
      }
  
      /**
      * Bind data to the view.
      *
      * @param  View  $view
      * @return void
      */
      public function compose(View $view)
      {
          $view->with('count', $this->users->count());
      }
  }
  

Now go to your view or in this case Profile.blade.php and add

{{ $count }}

and that will show the count of users on the profile page.

To show the count on all pages change

// Using class based composers...
View::composer(
    'profile', 'App\Http\ViewComposers\ProfileComposer'
);

To

// Using class based composers...
View::composer(
    '*', 'App\Http\ViewComposers\ProfileComposer'
);

    public Form1()
    {
        InitializeComponent();

        string myHost = System.Net.Dns.GetHostName();
        string myIP = null;

        for (int i = 0; i <= System.Net.Dns.GetHostEntry(myHost).AddressList.Length - 1; i++)
        {
            if (System.Net.Dns.GetHostEntry(myHost).AddressList[i].IsIPv6LinkLocal == false)
            {
                myIP = System.Net.Dns.GetHostEntry(myHost).AddressList[i].ToString();
            }
        }
    }

Declare myIP and myHost in public Variable and use in any function of the form.

This should do the trick.

<activity ... android:launchMode="singleTop" />

When you create an intent to start the app use:

Intent intent= new Intent(context, YourActivity.class);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_SINGLE_TOP);

This is that should be needed.

First you are linking the file that is here:

<script src="../Script/login.js"> 

Which would lead the website to a file in the Folder Script, but then in the second paragraph you are saying that the folder name is

and also i have onother folder named scripts that contains the the following login.js file

So, this won't work! Because you are not accessing the correct file. To do that please write the code as

<script src="/script/login.js"></script>

Try removing the .. from the beginning of the code too.

This way, you'll reach the js file where the function would run!

Just to make sure:

Just to make sure that the files are attached the HTML DOM, then please open Developer Tools (F12) and in the network workspace note each request that the browser makes to the server. This way you will learn which files were loaded and which weren't, and also why they were not!

Good luck.

Units:

The amount of "neurons", or "cells", or whatever the layer has inside it.

It's a property of each layer, and yes, it's related to the output shape (as we will see later). In your picture, except for the input layer, which is conceptually different from other layers, you have:

• Hidden layer 1: 4 units (4 neurons)
• Hidden layer 2: 4 units
• Last layer: 1 unit

Shapes

Shapes are consequences of the model's configuration. Shapes are tuples representing how many elements an array or tensor has in each dimension.

Ex: a shape (30,4,10) means an array or tensor with 3 dimensions, containing 30 elements in the first dimension, 4 in the second and 10 in the third, totaling 30*4*10 = 1200 elements or numbers.

The input shape

What flows between layers are tensors. Tensors can be seen as matrices, with shapes.

In Keras, the input layer itself is not a layer, but a tensor. It's the starting tensor you send to the first hidden layer. This tensor must have the same shape as your training data.

Example: if you have 30 images of 50x50 pixels in RGB (3 channels), the shape of your input data is (30,50,50,3). Then your input layer tensor, must have this shape (see details in the "shapes in keras" section).

Each type of layer requires the input with a certain number of dimensions:

• Dense layers require inputs as (batch_size, input_size)
  • or (batch_size, optional,...,optional, input_size)
• 2D convolutional layers need inputs as:
  • if using channels_last: (batch_size, imageside1, imageside2, channels)
  • if using channels_first: (batch_size, channels, imageside1, imageside2)
• 1D convolutions and recurrent layers use (batch_size, sequence_length, features)
  • Details on how to prepare data for recurrent layers

Now, the input shape is the only one you must define, because your model cannot know it. Only you know that, based on your training data.

All the other shapes are calculated automatically based on the units and particularities of each layer.

Relation between shapes and units - The output shape

Given the input shape, all other shapes are results of layers calculations.

The "units" of each layer will define the output shape (the shape of the tensor that is produced by the layer and that will be the input of the next layer).

Each type of layer works in a particular way. Dense layers have output shape based on "units", convolutional layers have output shape based on "filters". But it's always based on some layer property. (See the documentation for what each layer outputs)

Let's show what happens with "Dense" layers, which is the type shown in your graph.

A dense layer has an output shape of (batch_size,units). So, yes, units, the property of the layer, also defines the output shape.

• Hidden layer 1: 4 units, output shape: (batch_size,4).
• Hidden layer 2: 4 units, output shape: (batch_size,4).
• Last layer: 1 unit, output shape: (batch_size,1).

Weights

Weights will be entirely automatically calculated based on the input and the output shapes. Again, each type of layer works in a certain way. But the weights will be a matrix capable of transforming the input shape into the output shape by some mathematical operation.

In a dense layer, weights multiply all inputs. It's a matrix with one column per input and one row per unit, but this is often not important for basic works.

In the image, if each arrow had a multiplication number on it, all numbers together would form the weight matrix.

Shapes in Keras

Earlier, I gave an example of 30 images, 50x50 pixels and 3 channels, having an input shape of (30,50,50,3).

Since the input shape is the only one you need to define, Keras will demand it in the first layer.

But in this definition, Keras ignores the first dimension, which is the batch size. Your model should be able to deal with any batch size, so you define only the other dimensions:

input_shape = (50,50,3)
    #regardless of how many images I have, each image has this shape        

Optionally, or when it's required by certain kinds of models, you can pass the shape containing the batch size via batch_input_shape=(30,50,50,3) or batch_shape=(30,50,50,3). This limits your training possibilities to this unique batch size, so it should be used only when really required.

Either way you choose, tensors in the model will have the batch dimension.

So, even if you used input_shape=(50,50,3), when keras sends you messages, or when you print the model summary, it will show (None,50,50,3).

The first dimension is the batch size, it's None because it can vary depending on how many examples you give for training. (If you defined the batch size explicitly, then the number you defined will appear instead of None)

Also, in advanced works, when you actually operate directly on the tensors (inside Lambda layers or in the loss function, for instance), the batch size dimension will be there.

• So, when defining the input shape, you ignore the batch size: input_shape=(50,50,3)
• When doing operations directly on tensors, the shape will be again (30,50,50,3)
• When keras sends you a message, the shape will be (None,50,50,3) or (30,50,50,3), depending on what type of message it sends you.

Dim

And in the end, what is dim?

If your input shape has only one dimension, you don't need to give it as a tuple, you give input_dim as a scalar number.

So, in your model, where your input layer has 3 elements, you can use any of these two:

• input_shape=(3,) -- The comma is necessary when you have only one dimension
• input_dim = 3

But when dealing directly with the tensors, often dim will refer to how many dimensions a tensor has. For instance a tensor with shape (25,10909) has 2 dimensions.

Defining your image in Keras

Keras has two ways of doing it, Sequential models, or the functional API Model. I don't like using the sequential model, later you will have to forget it anyway because you will want models with branches.

PS: here I ignored other aspects, such as activation functions.

With the Sequential model:

from keras.models import Sequential  
from keras.layers import *  

model = Sequential()    

#start from the first hidden layer, since the input is not actually a layer   
#but inform the shape of the input, with 3 elements.    
model.add(Dense(units=4,input_shape=(3,))) #hidden layer 1 with input

#further layers:    
model.add(Dense(units=4)) #hidden layer 2
model.add(Dense(units=1)) #output layer   

With the functional API Model:

from keras.models import Model   
from keras.layers import * 

#Start defining the input tensor:
inpTensor = Input((3,))   

#create the layers and pass them the input tensor to get the output tensor:    
hidden1Out = Dense(units=4)(inpTensor)    
hidden2Out = Dense(units=4)(hidden1Out)    
finalOut = Dense(units=1)(hidden2Out)   

#define the model's start and end points    
model = Model(inpTensor,finalOut)

Shapes of the tensors

Remember you ignore batch sizes when defining layers:

• inpTensor: (None,3)
• hidden1Out: (None,4)
• hidden2Out: (None,4)
• finalOut: (None,1)

    function XLExport() {
        try {
            var i;
            var j;
            var mycell;
            var tableID = "tblInnerHTML";

            var objXL = new ActiveXObject("Excel.Application");
            var objWB = objXL.Workbooks.Add();
            var objWS = objWB.ActiveSheet;

            for (i = 0; i < document.getElementById('<%= tblAuditReport.ClientID %>').rows.length; i++) {
                for (j = 0; j < document.getElementById('<%= tblAuditReport.ClientID %>').rows(i).cells.length; j++) {
                    mycell = document.getElementById('<%= tblAuditReport.ClientID %>').rows(i).cells(j);
                    objWS.Cells(i + 1, j + 1).Value = mycell.innerText;
                }
            }

            //objWS.Range("A1", "L1").Font.Bold = true;

            objWS.Range("A1", "Z1").EntireColumn.AutoFit();

            //objWS.Range("C1", "C1").ColumnWidth = 50;

            objXL.Visible = true;

        }
        catch (err) {
                    }

    }

According to the w3 spec section 4.6.3 for XMLHttpRequest a user agent should honor the Set-Cookie header. So the answer is yes you should be able to.

Quotation:

If the user agent supports HTTP State Management it should persist, discard and send cookies (as received in the Set-Cookie response header, and sent in the Cookie header) as applicable.

Here is the simple trick. Just copy and paste it.

<!DOCTYPE html>
    <html lang="en">
    <head>
    <title>Change Image on Hover in CSS</title>
    <style type="text/css">
        .card {
            width: 130px;
            height: 195px;
            background: url("../images/card-back.jpg") no-repeat;
            margin: 50px;
        }
        .card:hover {
            background: url("../images/card-front.jpg") no-repeat;
        }
    </style>
    </head>
    <body>
        <div class="card"></div>
    </body>
    </html>       

I use the following to turn all error reporting on for MySQLi

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

*NOTE: don't use this in a production environment.