Create specific .yml files in the resources directory for each and every environment(Eg: dev,qa,stg etc.) that you need to run the application. image of .yml files in resources directory

If you are using spring-boot-maven-plugin 2.0.5.RELEASE in your pom.xml file you can add the profiles within the dependency tag as follows. image of pom.xml spring-boot-maven-plugin (you can configure multiple profiles using multiple profile tags)

Then you can use the following commands to build and run the project.

1) mvn clean install
2) mvn spring-boot:run -Dspring-boot.run.default==qa

Then you will see that the default profile is set as qa while running the project. displaying the default profile when running the application

Right-click on an Eclipse project then "Export" then "General" then "Ant build files". I don't think it is possible to customise the output format though.

Set the height to auto and transition the max-height.

Tested on Chrome v17

div {
  position: absolute;
  width:100%;
  bottom:0px;
  left:0px;

  background:#333;
  color: #FFF;

  max-height:100%; /**/
  height:auto; /**/

  -webkit-transition: all 0.2s ease-in-out;
  -moz-transition: all 0.2s ease-in-out;
  -o-transition: all 0.2s ease-in-out;
  -ms-transition: all 0.2s ease-in-out;
  transition: all 0.2s ease-in-out;
}

.close {
  max-height:0%; /**/
}

The suggested answer no longer works after 2014. Now you have to use Google Maps Embed API for loading into iframe.

Here is the link for the question and solution.

If you are using Angular like me you won't be able to load the google maps in iframe because of XSS security issue. For that you need to sanitise the URL with Pipe from angular.

Here is the link to do so.

All the suggestions are tested and works 100% as of today.

There is a simple solution for you called unique_together which does exactly what you want.

For example:

class MyModel(models.Model):
  field1 = models.CharField(max_length=50)
  field2 = models.CharField(max_length=50)

  class Meta:
    unique_together = ('field1', 'field2',)

And in your case:

class Volume(models.Model):
  id = models.AutoField(primary_key=True)
  journal_id = models.ForeignKey(Journals, db_column='jid', null=True, verbose_name = "Journal")
  volume_number = models.CharField('Volume Number', max_length=100)
  comments = models.TextField('Comments', max_length=4000, blank=True)

  class Meta:
    unique_together = ('journal_id', 'volume_number',)

Use dispatch group

dispatchGroup.enter()
FirstOperation(completion: { _ in
    dispatchGroup.leave()
})
dispatchGroup.enter()
SecondOperation(completion: { _ in
    dispatchGroup.leave()
})
dispatchGroup.wait() // Waits here on this thread until the two operations complete executing.

If you wish to run one script and only one script, you can make it that users default shell.

echo "/usr/bin/uptime" >> /etc/shells
vim /etc/passwd  
  * username:x:uid:grp:message:homedir:/usr/bin/uptime

can have interesting effects :) ( its not secure tho, so don't trust it too much. nothing like setting your default shell to be a script that wipes your drive. ... although, .. I can imagine a scenario where that could be amazingly useful )

(untested) something like this may do the job

WITH
base AS
(
    select *                   -- get the table
    from sometable
    order by name              -- in the desired order
),
twenty AS
(
    select *                   -- get the first 30 rows
    from base
    where rownum < 30
    order by name              -- in the desired order
)
select *                       -- then get rows 21 .. 30
from twenty
where rownum > 20
order by name                  -- in the desired order

There is also the analytic function rank, that you can use to order by.

To get the n most frequent values, just subset .value_counts() and grab the index:

# get top 10 most frequent names
n = 10
dataframe['name'].value_counts()[:n].index.tolist()

Presumably from this site:

Internal Fragmentation Internal fragmentation occurs when the memory allocator leaves extra space empty inside of a block of memory that has been allocated for a client. This usually happens because the processor’s design stipulates that memory must be cut into blocks of certain sizes -- for example, blocks may be required to be evenly be divided by four, eight or 16 bytes. When this occurs, a client that needs 57 bytes of memory, for example, may be allocated a block that contains 60 bytes, or even 64. The extra bytes that the client doesn’t need go to waste, and over time these tiny chunks of unused memory can build up and create large quantities of memory that can’t be put to use by the allocator. Because all of these useless bytes are inside larger memory blocks, the fragmentation is considered internal.

External Fragmentation External fragmentation happens when the memory allocator leaves sections of unused memory blocks between portions of allocated memory. For example, if several memory blocks are allocated in a continuous line but one of the middle blocks in the line is freed (perhaps because the process that was using that block of memory stopped running), the free block is fragmented. The block is still available for use by the allocator later if there’s a need for memory that fits in that block, but the block is now unusable for larger memory needs. It cannot be lumped back in with the total free memory available to the system, as total memory must be contiguous for it to be useable for larger tasks. In this way, entire sections of free memory can end up isolated from the whole that are often too small for significant use, which creates an overall reduction of free memory that over time can lead to a lack of available memory for key tasks.

First change the method parameter Enum supportedPermissions to SupportedPermissions supportedPermissions.

Then create your file like this

file = new File
{  
    Name = name,
    Id = id,
    Description = description,
    SupportedPermissions = supportedPermissions
};

And the call to your method should be

CreateFile(id, name, description, SupportedPermissions.basic);

And yet another option which consist in reading the CSV file using Pandas and then importing the Pandas DataFrame into Spark.

For example:

from pyspark import SparkContext
from pyspark.sql import SQLContext
import pandas as pd

sc = SparkContext('local','example')  # if using locally
sql_sc = SQLContext(sc)

pandas_df = pd.read_csv('file.csv')  # assuming the file contains a header
# pandas_df = pd.read_csv('file.csv', names = ['column 1','column 2']) # if no header
s_df = sql_sc.createDataFrame(pandas_df)

1. Try installing VMware tools in guest operating system.
2. Check if firewall is enable
3. If 1 and 2 are ok, try using share internet connection

After sharing connection the VMnet8 IP address will be changed to 192.168.137.1, set up the IP 192.168.18.1 and try again

What would you use a ConcurrentList for?

The concept of a Random Access container in a threaded world isn't as useful as it may appear. The statement

  if (i < MyConcurrentList.Count)  
      x = MyConcurrentList[i]; 

as a whole would still not be thread-safe.

Instead of creating a ConcurrentList, try to build solutions with what's there. The most common classes are the ConcurrentBag and especially the BlockingCollection.

There are two ways, depending on your original timestamp:

mktime() and timegm()

http://docs.python.org/library/time.html

You can use the following formula,

=IF(ISTEXT(REGEXEXTRACT(A1; "Bla")); "Yes";"No")

Your stored procedure is designed to accept a single parameter, Arg1List. You can't pass 4 parameters to a procedure that only accepts one.

To make it work, the code that calls your procedure will need to concatenate your parameters into a single string of no more than 3000 characters and pass it in as a single parameter.

Updated for Swift 3.x, Swift 4.x, Swift 5.x

// create an actionSheet
let actionSheetController: UIAlertController = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)

// create an action
let firstAction: UIAlertAction = UIAlertAction(title: "First Action", style: .default) { action -> Void in

    print("First Action pressed")
}

let secondAction: UIAlertAction = UIAlertAction(title: "Second Action", style: .default) { action -> Void in

    print("Second Action pressed")
}

let cancelAction: UIAlertAction = UIAlertAction(title: "Cancel", style: .cancel) { action -> Void in }

// add actions
actionSheetController.addAction(firstAction)
actionSheetController.addAction(secondAction)
actionSheetController.addAction(cancelAction)


// present an actionSheet...
// present(actionSheetController, animated: true, completion: nil)   // doesn't work for iPad

actionSheetController.popoverPresentationController?.sourceView = yourSourceViewName // works for both iPhone & iPad

present(actionSheetController, animated: true) {
    print("option menu presented")
}

In case if you have to apply your custom class you can use

  @Html.TextBoxFor(m => m.Birthday,   new Dictionary<string, object>() { {"readonly", "true"}, {"class", "commonField"} } )

Where are

commonField is CSS class

and Birthday could be string field that you probably can use to keep jQuery Datapicker date :)

<script>
             $(function () {
                 $("#Birthday").datepicker({

                 });
             });
  </script>

That's a real life example.

You can use System.exit() for this purpose.

According to oracle's Java 8 documentation:

public static void exit(int status)

Terminates the currently running Java Virtual Machine. The argument serves as a status code; by convention, a nonzero status code indicates abnormal termination.

This method calls the exit method in class Runtime. This method never returns normally.

The call System.exit(n) is effectively equivalent to the call:

Runtime.getRuntime().exit(n)

Is this a commercial application or some hobbyist / open source software?

I'm asking this because in my experience, all free .NET Excel handling alternatives have serious problems, for different reasons. For hobbyist things, I usually end up porting jExcelApi from Java to C# and using it.

But if this is a commercial application, you would be better off by purchasing a third party library, like Aspose.Cells. Believe me, it totally worths it as it saves a lot of time and time ain't free.

As of Java 7, java.util.logging.SimpleFormatter supports getting its format from a system property, so adding something like this to the JVM command line will cause it to print on one line:

-Djava.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS %4$s %2$s %5$s%6$s%n'

Alternatively, you can also add this to your logger.properties:

java.util.logging.SimpleFormatter.format='%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS %4$s %2$s %5$s%6$s%n'

Thanks, Rippon! I have finally got this working too, after many struggles, and my solution is very close to what you suggested! The key was to make my own Job to extend QuartzJobBean, and to use the schedulerContextAsMap.

I did get away without specifying the applicationContextSchedulerContextKey property - it worked without it for me.

For the benefit of others, here is the final configuration that has worked for me:

    <bean id="quartzScheduler"  class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="configLocation" value="classpath:spring/quartz.properties"/>
        <property name="jobFactory">
            <bean  class="org.springframework.scheduling.quartz.SpringBeanJobFactory" />
        </property>
        <property name="schedulerContextAsMap">
            <map>
                <entry key="mailService" value-ref="mailService" />
            </map>
        </property>
</bean>
<bean id="jobTriggerFactory"
      class="org.springframework.beans.factory.config.ObjectFactoryCreatingFactoryBean">
    <property name="targetBeanName">
        <idref local="jobTrigger" />
    </property>
</bean>
<bean id="jobTrigger"   class="org.springframework.scheduling.quartz.SimpleTriggerBean"
    scope="prototype">
      <property name="group" value="myJobs" />
      <property name="description" value="myDescription" />
      <property name="repeatCount" value="0" />
</bean>

<bean id="jobDetailFactory"
      class="org.springframework.beans.factory.config.ObjectFactoryCreatingFactoryBean">
    <property name="targetBeanName">
        <idref local="jobDetail" />
    </property>
</bean>

<bean id="jobDetail" class="org.springframework.scheduling.quartz.JobDetailBean"
scope="prototype">
<property name="jobClass" value="com.cambridgedata.notifications.EMailJob" />
<property name="volatility" value="false" />
<property name="durability" value="false" />
<property name="requestsRecovery" value="true" />
</bean> 
<bean id="notificationScheduler"   class="com.cambridgedata.notifications.NotificationScheduler">
    <constructor-arg ref="quartzScheduler" />
    <constructor-arg ref="jobDetailFactory" />
    <constructor-arg ref="jobTriggerFactory" />
</bean>

Notice that the 'mailService" bean is my own service bean, managed by Spring. I was able to access it in my Job as following:

    public void executeInternal(JobExecutionContext context)
    throws JobExecutionException {

    logger.info("EMailJob started ...");
    ....
    SchedulerContext schedulerContext = null;
    try {
        schedulerContext = context.getScheduler().getContext();
    } catch (SchedulerException e1) {
        e1.printStackTrace();
    }
    MailService mailService = (MailService)schedulerContext.get("mailService");
    ....

And this configuration also allowed me to dynamically scheduler jobs, by using factories to get Triggers and JobDetails and setting required parameters on them programmatically:

    public NotificationScheduler(final Scheduler scheduler,
        final ObjectFactory<JobDetail> jobDetailFactory,
        final ObjectFactory<SimpleTrigger> jobTriggerFactory) {
    this.scheduler = scheduler;
    this.jobDetailFactory = jobDetailFactory;
    this.jobTriggerFactory = jobTriggerFactory;
           ...
        // create a trigger
        SimpleTrigger trigger = jobTriggerFactory.getObject();
        trigger.setRepeatInterval(0L);
    trigger.setStartTime(new Date());

    // create job details
    JobDetail emailJob = jobDetailFactory.getObject();

    emailJob.setName("new name");
    emailJob.setGroup("immediateEmailsGroup");
            ...

Thanks a lot again to everybody who helped,

Marina

:nth-child is the answer you are looking for.

You need to add Portrait (top home button) on the supported interface orientation field of info.plist file in xcode

g* does a decent job without ctags being set up.

That is, type g,* (or just * - see below) to search for the word under the cursor (in this case, the function name). Then press n to go to the next (or Shift-n for previous) occurrence.

It doesn't jump directly to the definition, given that this command just searches for the word under the cursor, but if you don't want to deal with setting up ctags at the moment, you can at least save yourself from having to re-type the function name to search for its definition.

--Edit-- Although I've been using g* for a long time, I've recently discovered two shortcuts for these shortcuts!

(a) * will jump to the next occurrence of the word under the cursor. (No need to type the g, the 'goto' command in vi).

(b) # goes to the previous occurrence, in similar fashion.

N and n still work, but '#' is often very useful to start the search initially in the reverse direction, for example, when looking for the declaration of a variable under the cursor.

This article might be helpful with changing fonts.

From the article:

The commands to change font attributes are illustrated by the following example:

  \fontencoding{T1}
  \fontfamily{garamond}
  \fontseries{m}
  \fontshape{it}
  \fontsize{12}{15}
  \selectfont

This series of commands set the current font to medium weight italic garamond 12pt type with 15pt leading in the T1 encoding scheme, and the \selectfont command causes LaTeX to look in its mapping scheme for a metric corresponding to these attributes.

Shorter:

User.where("id > 200")

If you are running SQL Server 2012 or newer you can also use the new TRY_PARSE() function:

Returns the result of an expression, translated to the requested data type, or null if the cast fails in SQL Server. Use TRY_PARSE only for converting from string to date/time and number types.

Or TRY_CONVERT/TRY_CAST:

Returns a value cast to the specified data type if the cast succeeds; otherwise, returns null.

Short variant:

my_var = some_value if 'my_var' not in globals() else my_var:

Just like you do for getting something from the CNode you also need to do for the ANode

XmlNodeList xnList = xml.SelectNodes("/Element[@*]");
foreach (XmlNode xn in xnList)
{
  XmlNode anode = xn.SelectSingleNode("ANode");
    if (anode!= null)
    {
        string id = anode["ID"].InnerText;
        string date = anode["Date"].InnerText;
        XmlNodeList CNodes = xn.SelectNodes("ANode/BNode/CNode");
        foreach (XmlNode node in CNodes)
        {
         XmlNode example = node.SelectSingleNode("Example");
         if (example != null)
         {
            string na = example["Name"].InnerText;
            string no = example["NO"].InnerText;
         }
        }
    }
}

Update with React v16 and ReactRouter v4.2.0 (October 2017):

class BackButton extends Component {
  static contextTypes = {
    router: () => true, // replace with PropTypes.object if you use them
  }

  render() {
    return (
      <button
        className="button icon-left"
        onClick={this.context.router.history.goBack}>
          Back
      </button>
    )
  }
}

Update with React v15 and ReactRouter v3.0.0 (August 2016):

var browserHistory = ReactRouter.browserHistory;

var BackButton = React.createClass({
  render: function() {
    return (
      <button
        className="button icon-left"
        onClick={browserHistory.goBack}>
        Back
      </button>
    );
  }
});

Created a fiddle with a little bit more complex example with an embedded iframe: https://jsfiddle.net/kwg1da3a/

React v14 and ReacRouter v1.0.0 (Sep 10, 2015)

You can do this:

var React = require("react");
var Router = require("react-router");

var SomePage = React.createClass({
  ...

  contextTypes: {
    router: React.PropTypes.func
  },
  ...

  handleClose: function () {
    if (Router.History.length > 1) {
      // this will take you back if there is history
      Router.History.back();
    } else {
      // this will take you to the parent route if there is no history,
      // but unfortunately also add it as a new route
      var currentRoutes = this.context.router.getCurrentRoutes();
      var routeName = currentRoutes[currentRoutes.length - 2].name;
      this.context.router.transitionTo(routeName);
    }
  },
  ...

You need to be careful that you have the necessary history to go back. If you hit the page directly and then hit back it will take you back in the browser history before your app.

This solution will take care of both scenarios. It will, however, not handle an iframe that can navigate within the page (and add to the browser history), with the back button. Frankly, I think that is a bug in the react-router. Issue created here: https://github.com/rackt/react-router/issues/1874

Make sure to balance the risk that fresh statistics cause undesirable changes to query plans against the risk that stale statistics can themselves cause query plans to change.

Imagine you have a bug database with a table ISSUE and a column CREATE_DATE where the values in the column increase more or less monotonically. Now, assume that there is a histogram on this column that tells Oracle that the values for this column are uniformly distributed between January 1, 2008 and September 17, 2008. This makes it possible for the optimizer to reasonably estimate the number of rows that would be returned if you were looking for all issues created last week (i.e. September 7 - 13). If the application continues to be used and the statistics are never updated, though, this histogram will be less and less accurate. So the optimizer will expect queries for "issues created last week" to be less and less accurate over time and may eventually cause Oracle to change the query plan negatively.

This page should help - http://www.zedwood.com/article/103/bash-send-mail-with-an-attachment

It includes a script to send e-mail with a MIME attachment, ie with a HTML page and images included.

You could try computing sin(pi/2) (or cos(pi/2) for that matter) using the (fairly) quickly converging power series for sin and cos. (Even better: use various doubling formulas to compute nearer x=0 for faster convergence.)

BTW, better than using series for tan(x) is, with computing say cos(x) as a black box (e.g. you could use taylor series as above) is to do root finding via Newton. There certainly are better algorithms out there, but if you don't want to verify tons of digits this should suffice (and it's not that tricky to implement, and you only need a bit of calculus to understand why it works.)

You can insert script to HTML like in any other (non-PHP) page, PHP processes it like any other code:

<button id="butt">
  ? Click ME! ?
</button>

<script>
    document.getElementById("butt").onclick = function () {
        alert("Message");
    }
</script>

You can use onSOMETHING attributes:

<button onclick="alert('Message')">Button</button>

To generate message in PHP, use json_encode function (it can convert to JavaScript everything that can be expressed in JSON — arrays, objects, strings, …):

<?php $message = "Your message variable"; ?>

<button onclick="alert(<?=htmlspecialchars(json_encode($message), ENT_QUOTES)?>)">Click me!</button>

If you generate code for <script> tags, do NOT use htmlspecialchars or similar function:

<?php $var = "Test string"; ?>

<button id="butt">Button</button>

<script>
    document.getElementById("butt").onclick = function () {
        alert(<?=json_encode($var)?>);
    }
</script>

You can generate whole JavaScript files, not only JavaScript embedded into HTML. You still have to name them with .php extension (like script.php). Just send the correct header.

script.php – The JavaScript file

<?php header("Content-Type: application/javascript"); /* This meant the file can be used in script tag */ ?>

<?php $var = "Message"; ?>

document.getElementById("butt").onclick = function () {
    alert(<?=json_encode($var)?>);
}

index.html – Example page that uses script.php

<!doctype html>
<html lang=en>
    <head>
        <meta charset="utf-8">
        <title>Page title</title>
    </head>
    <body>
        <button id="butt">
            BUTTON
        </button>

        <script src="script.js"></script>
    </body>
</html>

Reducing memory usage in Python is difficult, because Python does not actually release memory back to the operating system. If you delete objects, then the memory is available to new Python objects, but not free()'d back to the system (see this question).

If you stick to numeric numpy arrays, those are freed, but boxed objects are not.

>>> import os, psutil, numpy as np
>>> def usage():
...     process = psutil.Process(os.getpid())
...     return process.get_memory_info()[0] / float(2 ** 20)
... 
>>> usage() # initial memory usage
27.5 

>>> arr = np.arange(10 ** 8) # create a large array without boxing
>>> usage()
790.46875
>>> del arr
>>> usage()
27.52734375 # numpy just free()'d the array

>>> arr = np.arange(10 ** 8, dtype='O') # create lots of objects
>>> usage()
3135.109375
>>> del arr
>>> usage()
2372.16796875  # numpy frees the array, but python keeps the heap big

Reducing the Number of Dataframes

Python keep our memory at high watermark, but we can reduce the total number of dataframes we create. When modifying your dataframe, prefer inplace=True, so you don't create copies.

Another common gotcha is holding on to copies of previously created dataframes in ipython:

In [1]: import pandas as pd

In [2]: df = pd.DataFrame({'foo': [1,2,3,4]})

In [3]: df + 1
Out[3]: 
   foo
0    2
1    3
2    4
3    5

In [4]: df + 2
Out[4]: 
   foo
0    3
1    4
2    5
3    6

In [5]: Out # Still has all our temporary DataFrame objects!
Out[5]: 
{3:    foo
 0    2
 1    3
 2    4
 3    5, 4:    foo
 0    3
 1    4
 2    5
 3    6}

You can fix this by typing %reset Out to clear your history. Alternatively, you can adjust how much history ipython keeps with ipython --cache-size=5 (default is 1000).

Reducing Dataframe Size

Wherever possible, avoid using object dtypes.

>>> df.dtypes
foo    float64 # 8 bytes per value
bar      int64 # 8 bytes per value
baz     object # at least 48 bytes per value, often more

Values with an object dtype are boxed, which means the numpy array just contains a pointer and you have a full Python object on the heap for every value in your dataframe. This includes strings.

Whilst numpy supports fixed-size strings in arrays, pandas does not (it's caused user confusion). This can make a significant difference:

>>> import numpy as np
>>> arr = np.array(['foo', 'bar', 'baz'])
>>> arr.dtype
dtype('S3')
>>> arr.nbytes
9

>>> import sys; import pandas as pd
>>> s = pd.Series(['foo', 'bar', 'baz'])
dtype('O')
>>> sum(sys.getsizeof(x) for x in s)
120

You may want to avoid using string columns, or find a way of representing string data as numbers.

If you have a dataframe that contains many repeated values (NaN is very common), then you can use a sparse data structure to reduce memory usage:

>>> df1.info()
<class 'pandas.core.frame.DataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 1 columns):
foo    float64
dtypes: float64(1)
memory usage: 605.5 MB

>>> df1.shape
(39681584, 1)

>>> df1.foo.isnull().sum() * 100. / len(df1)
20.628483479893344 # so 20% of values are NaN

>>> df1.to_sparse().info()
<class 'pandas.sparse.frame.SparseDataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 1 columns):
foo    float64
dtypes: float64(1)
memory usage: 543.0 MB

Viewing Memory Usage

You can view the memory usage (docs):

>>> df.info()
<class 'pandas.core.frame.DataFrame'>
Int64Index: 39681584 entries, 0 to 39681583
Data columns (total 14 columns):
...
dtypes: datetime64[ns](1), float64(8), int64(1), object(4)
memory usage: 4.4+ GB

As of pandas 0.17.1, you can also do df.info(memory_usage='deep') to see memory usage including objects.

Here's my implementation: Simple and short

#include <iostream>
#include <cstdio>
using namespace std;


int max_of_five(int a, int b, int c, int d,int e){
    int large= max(max(a, b), max(c,d));
    return max(large,e);

}

int min_of_five(int a,int b,int c, int d,int e){
    int small=min(min(a,b),min(c,d));
    return min(small,e);
}


int main() {
    int a, b, c, d,e;

    scanf("%d %d %d %d %d", &a, &b, &c, &d,&e);
    int ans = max_of_five(a, b, c, d, e);
    int ans1=min_of_five(a,b,c,d,e);
    printf("Max:\t%d\n", ans);
    printf("Min:\t%d", ans1);

    return 0;
}

This will work although when embedding PHP in HTML it is better practice to use the following form:

<table>
    <?php foreach($array as $key=>$value): ?>
    <tr>
        <td><?= $key; ?></td>
    </tr>
    <?php endforeach; ?>
</table>

You can find the doc for the alternative syntax on PHP.net

As from PostgreSQL 9.0 you can use the aggregate function called string_agg. Your new SQL should look something like this:

SELECT company_id, string_agg(employee, ', ')
FROM mytable
GROUP BY company_id;

Wait and await - while similar conceptually - are actually completely different.

Wait will synchronously block until the task completes. So the current thread is literally blocked waiting for the task to complete. As a general rule, you should use "async all the way down"; that is, don't block on async code. On my blog, I go into the details of how blocking in asynchronous code causes deadlock.

await will asynchronously wait until the task completes. This means the current method is "paused" (its state is captured) and the method returns an incomplete task to its caller. Later, when the await expression completes, the remainder of the method is scheduled as a continuation.

You also mentioned a "cooperative block", by which I assume you mean a task that you're Waiting on may execute on the waiting thread. There are situations where this can happen, but it's an optimization. There are many situations where it can't happen, like if the task is for another scheduler, or if it's already started or if it's a non-code task (such as in your code example: Wait cannot execute the Delay task inline because there's no code for it).

You may find my async / await intro helpful.

You can change the passwd file directly for the particular user or use the below command

chsh -s /usr/local/bin/bash username

Then log out and log in

What about just

xxx >& /dev/stdout

???

This is what I had to do:

1. Install the latest Android SDK Manager (22.0.1)
2. Install Gradle (1.6)
3. Update my environment variables:
   • ANDROID_HOME=C:\...\android-sdk
   • GRADLE_HOME=C:\...\gradle-1.6
4. Update/dobblecheck my PATH variable:
   • PATH=...;%GRADLE_HOME%\bin;%ANDROID_HOME%\tools;%ANDROID_HOME%\platform-tools
5. Start Android SDK Manager and download necessary SDK API's

Visual Studio for Windows Apps is meant to be used to build Windows Store Apps using HTML & Javascript or WinRT and XAML. These can also run on the Windows tablet that run Windows RT.

Visual Studio for Windows Desktop is meant to build applications using Windows Forms or Windows Presentation Foundation, these can run on Windows 8.1 on a normal desktop or on a tablet device like the Surface Pro in desktop mode (like a classic windows application).

In XML file, the font size of ant text including the button, textView, editText and others can be changed by the adding

android:textSize="10sp"

In the book of Matt Stauffer he suggest to create an array in your config/app.php to add the variable and then anywhere you reference to it with:

$myvariable = new Namearray(config('fileWhichContainsVariable.array.ConfigKeyVariable'))

Have try this solution? is good ?

here is have convert simple string to string array using split method.

String [] stringArray="My Name is ABC".split(" ");

Output

stringArray[0]="My";
stringArray[1]="Name";
stringArray[2]="is";
stringArray[3]="ABC";

I believe sideshowbarker 's answer here has all the info you need to fix this. If your problem is just No 'Access-Control-Allow-Origin' header is present on the response you're getting, you can set up a CORS proxy to get around this. Way more info on it in the linked answer

It really depends on how it is coded but something like this may work:

driver.findElement(By.id("datepicker")).click(); //click field
driver.findElement(By.linkText("Next")).click(); //click next month
driver.findElement(By.linkText("28")).click(); //click day

This is an improvement over @Mottie's answer because as of jQuery 1.5.2 :text selects input elements that have no specified type attribute (in which case type="text" is implied):

$('form').find(':text,textarea,select').filter(':visible:first')

The accepted answer by Adam (flex: 1 1 0) works perfectly for flexbox containers whose width is either fixed, or determined by an ancestor. Situations where you want the children to fit the container.

However, you may have a situation where you want the container to fit the children, with the children equally sized based on the largest child. You can make a flexbox container fit its children by either:

• setting position: absolute and not setting width or right, or
• place it inside a wrapper with display: inline-block

For such flexbox containers, the accepted answer does NOT work, the children are not sized equally. I presume that this is a limitation of flexbox, since it behaves the same in Chrome, Firefox and Safari.

The solution is to use a grid instead of a flexbox.

Demo: https://codepen.io/brettdonald/pen/oRpORG

<p>Normal scenario — flexbox where the children adjust to fit the container — and the children are made equal size by setting {flex: 1 1 0}</p>

<div id="div0">
  <div>
    Flexbox
  </div>
  <div>
    Width determined by viewport
  </div>
  <div>
    All child elements are equal size with {flex: 1 1 0}
  </div>
</div>

<p>Now we want to have the container fit the children, but still have the children all equally sized, based on the largest child. We can see that {flex: 1 1 0} has no effect.</p>

<div class="wrap-inline-block">
<div id="div1">
  <div>
    Flexbox
  </div>
  <div>
    Inside inline-block
  </div>
  <div>
    We want all children to be the size of this text
  </div>
</div>
</div>

<div id="div2">
  <div>
    Flexbox
  </div>
  <div>
    Absolutely positioned
  </div>
  <div>
    We want all children to be the size of this text
  </div>
</div>

<br><br><br><br><br><br>
<p>So let's try a grid instead. Aha! That's what we want!</p>

<div class="wrap-inline-block">
<div id="div3">
  <div>
    Grid
  </div>
  <div>
    Inside inline-block
  </div>
  <div>
    We want all children to be the size of this text
  </div>
</div>
</div>

<div id="div4">
  <div>
    Grid
  </div>
  <div>
    Absolutely positioned
  </div>
  <div>
    We want all children to be the size of this text
  </div>
</div>

body {
  margin: 1em;
}

.wrap-inline-block {
  display: inline-block;
}

#div0, #div1, #div2, #div3, #div4 {
  border: 1px solid #888;
  padding: 0.5em;
  text-align: center;
  white-space: nowrap;
}

#div2, #div4 {
  position: absolute;
  left: 1em;
}

#div0>*, #div1>*, #div2>*, #div3>*, #div4>* {
  margin: 0.5em;
  color: white;
  background-color: navy;
  padding: 0.5em;
}

#div0, #div1, #div2 {
  display: flex;
}

#div0>*, #div1>*, #div2>* {
  flex: 1 1 0;
}

#div0 {
  margin-bottom: 1em;
}

#div2 {
  top: 15.5em;
}

#div3, #div4 {
  display: grid;
  grid-template-columns: repeat(3,1fr);
}

#div4 {
  top: 28.5em;
}

Even a single space works

...Just open this answer for edit to see it.

Nested lists, deeper levels: ---- leave here an empty row * first level A item - no space in front the bullet character * second level Aa item - 1 space is enough * third level Aaa item - 5 spaces min * second level Ab item - 4 spaces possible too * first level B item

Nested lists, deeper levels:

• first level A item - no space in front the bullet character
  • second level Aa item - 1 space is enough
    • third level Aaa item - 5 spaces min
  • second level Ab item - 4 spaces possible too

• first level B item

  Nested lists, deeper levels:
   ...Skip a line and indent eight spaces. (as said in the editor-help, just on this page)
  * first level A item - no space in front the bullet character
   * second level Aa item - 1 space is enough
       * third level Aaa item - 5 spaces min
      * second level Ab item - 4 spaces possible too
  * first level B item
  

It is also good for Unit Testing, you can inject your own classes (that meet the requirements of the interface) into a class that depends on it

A workaround is to use a willAnswer() method.

For example the following works (and doesn't throw a MockitoException but actually throws a checked Exception as required here) using BDDMockito:

given(someObj.someMethod(stringArg1)).willAnswer( invocation -> { throw new Exception("abc msg"); });

The equivalent for plain Mockito would to use the doAnswer method

If you're really bent upon converting Integer to String value, I suggest use String.valueOf(YourIntegerVariable). More details can be found at: http://www.tutorialspoint.com/java/java_string_valueof.htm

Same question as @Dan - why not StringReader ?

If it has to be InputStreamReader, then:

String charset = ...; // your charset
byte[] bytes = string.getBytes(charset);
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
InputStreamReader isr = new InputStreamReader(bais);

Logical operators for boolean indexing in Pandas

It's important to realize that you cannot use any of the Python logical operators (and, or or not) on pandas.Series or pandas.DataFrames (similarly you cannot use them on numpy.arrays with more than one element). The reason why you cannot use those is because they implicitly call bool on their operands which throws an Exception because these data structures decided that the boolean of an array is ambiguous:

>>> import numpy as np
>>> import pandas as pd
>>> arr = np.array([1,2,3])
>>> s = pd.Series([1,2,3])
>>> df = pd.DataFrame([1,2,3])
>>> bool(arr)
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()
>>> bool(s)
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().
>>> bool(df)
ValueError: The truth value of a DataFrame is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().

I did cover this more extensively in my answer to the "Truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all()" Q+A.

NumPys logical functions

However NumPy provides element-wise operating equivalents to these operators as functions that can be used on numpy.array, pandas.Series, pandas.DataFrame, or any other (conforming) numpy.array subclass:

• and has np.logical_and
• or has np.logical_or
• not has np.logical_not
• numpy.logical_xor which has no Python equivalent but is a logical "exclusive or" operation

So, essentially, one should use (assuming df1 and df2 are pandas DataFrames):

np.logical_and(df1, df2)
np.logical_or(df1, df2)
np.logical_not(df1)
np.logical_xor(df1, df2)

Bitwise functions and bitwise operators for booleans

However in case you have boolean NumPy array, pandas Series, or pandas DataFrames you could also use the element-wise bitwise functions (for booleans they are - or at least should be - indistinguishable from the logical functions):

• bitwise and: np.bitwise_and or the & operator
• bitwise or: np.bitwise_or or the | operator
• bitwise not: np.invert (or the alias np.bitwise_not) or the ~ operator
• bitwise xor: np.bitwise_xor or the ^ operator

Typically the operators are used. However when combined with comparison operators one has to remember to wrap the comparison in parenthesis because the bitwise operators have a higher precedence than the comparison operators:

(df1 < 10) | (df2 > 10)  # instead of the wrong df1 < 10 | df2 > 10

This may be irritating because the Python logical operators have a lower precendence than the comparison operators so you normally write a < 10 and b > 10 (where a and b are for example simple integers) and don't need the parenthesis.

Differences between logical and bitwise operations (on non-booleans)

It is really important to stress that bit and logical operations are only equivalent for boolean NumPy arrays (and boolean Series & DataFrames). If these don't contain booleans then the operations will give different results. I'll include examples using NumPy arrays but the results will be similar for the pandas data structures:

>>> import numpy as np
>>> a1 = np.array([0, 0, 1, 1])
>>> a2 = np.array([0, 1, 0, 1])

>>> np.logical_and(a1, a2)
array([False, False, False,  True])
>>> np.bitwise_and(a1, a2)
array([0, 0, 0, 1], dtype=int32)

And since NumPy (and similarly pandas) does different things for boolean (Boolean or “mask” index arrays) and integer (Index arrays) indices the results of indexing will be also be different:

>>> a3 = np.array([1, 2, 3, 4])

>>> a3[np.logical_and(a1, a2)]
array([4])
>>> a3[np.bitwise_and(a1, a2)]
array([1, 1, 1, 2])

Summary table

Logical operator | NumPy logical function | NumPy bitwise function | Bitwise operator
-------------------------------------------------------------------------------------
       and       |  np.logical_and        | np.bitwise_and         |        &
-------------------------------------------------------------------------------------
       or        |  np.logical_or         | np.bitwise_or          |        |
-------------------------------------------------------------------------------------
                 |  np.logical_xor        | np.bitwise_xor         |        ^
-------------------------------------------------------------------------------------
       not       |  np.logical_not        | np.invert              |        ~

Where the logical operator does not work for NumPy arrays, pandas Series, and pandas DataFrames. The others work on these data structures (and plain Python objects) and work element-wise. However be careful with the bitwise invert on plain Python bools because the bool will be interpreted as integers in this context (for example ~False returns -1 and ~True returns -2).

Best way to convert your string into int is :

 EditText et = (EditText) findViewById(R.id.entry1);
 String hello = et.getText().toString();
 int converted=Integer.parseInt(hello);

It depends on the output you expect.

A cross join matches all rows in one table to all rows in another table. An inner join matches on a field or fields. If you have one table with 10 rows and another with 10 rows then the two joins will behave differently.

The cross join will have 100 rows returned and they won't be related, just what is called a Cartesian product. The inner join will match records to each other. Assuming one has a primary key and that is a foreign key in the other you would get 10 rows returned.

A cross join has limited general utility, but exists for completeness and describes the result of joining tables with no relations added to the query. You might use a cross join to make lists of combinations of words or something similar. An inner join on the other hand is the most common join.

Use the ExecuteStoreQuery method of the entity context. This avoids downloading the entire result set and deserializing into objects to do a simple row count.

   int count;

    using (var db = new MyDatabase()){
      string sql = "SELECT COUNT(*) FROM MyTable where FkId = {0}";

      object[] myParams = {1};
      var cntQuery = db.ExecuteStoreQuery<int>(sql, myParams);

      count = cntQuery.First<int>();
    }

With Java Generics Takes a list of X and returns a list of T that extends or implements X, Sweet!

    // the cast is is actually checked via the method API
@SuppressWarnings("unchecked")
public static <T extends X, X> ArrayList<T> convertToClazz(ArrayList<X> from, Class<X> inClazz, Class<T> outClazz) {
    ArrayList<T> to = new ArrayList<T>();
    for (X data : from) {
        to.add((T) data);
    }
    return to;
}

After installing pywin32

Steps to correctly install your module (pywin32)

1. First search where is your python pip is present

   1a. For Example in my case location of pip - C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts

2. Then open your command prompt and change directory to your pip folder location.

   cd C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts
   
   C:\Users\username\AppData\Local\Programs\Python\Python36-32\Scripts>pip install 
   pypiwin32
   

Restart your IDE

All done now you can use the module .

Dhaust gives a good way to add the property to the ApplicationUser class. Looking at the OP code it appears they may have done this or were on track to do that. The question asks

How can I retrieve the OrganizationId property of the currently logged in user from within a controller? However, OrganizationId is not a property available in User.Identity. Do I need to extend User.Identity to include the OrganizationId property?

Pawel gives a way to add an extension method that requires using statements or adding the namespace to the web.config file.

However, the question asks if you "need to" extend User.Identity to include the new property. There is an alternative way to access the property without extending User.Identity. If you followed Dhaust method you can then use the following code in your controller to access the new property.

ApplicationDbContext db = new ApplicationDbContext();
var manager = new UserManager<ApplicationUser>(new UserStore<ApplicationUser>(db));
var currentUser = manager.FindById(User.Identity.GetUserId());
var myNewProperty = currentUser.OrganizationId;

If you have this :

a = [[1, 1], [2, 1],[3, 1]]

You can easily access this by using :

print(a[0][2])
a[0][1] = 7
print(a)

Not too hard to explain... This is like typing hello worl, hitting the left-arrow key twice, typing d, and hitting the down-arrow key.

At least, that is how I infer your terminal is interpeting the \b and \n codes.

Redirect the output to a file and I bet you get something else entirely. Although you may have to look at the file's bytes to see the difference.

[edit]

To elaborate a bit, this printf emits a sequence of bytes: hello worl^H^Hd^J, where ^H is ASCII character #8 and ^J is ASCII character #10. What you see on your screen depends on how your terminal interprets those control codes.

Try this its working..

    <script>
      $(function () {
          $('form').on('submit', function (e) {
              e.preventDefault();
              $.ajax({
                  type: 'post',
                  url: '<?php echo base_url();?>student_ajax/insert',
                  data: $('form').serialize(),
                  success: function (response) {
                      alert('form was submitted');
                  }
                  error:function() {
                      alert('fail');
                  }
              });
          });
      });
    </script>

I has this error because the git repo was (accidentally) initialised twice on the same location : first as a non-bare repo and shortly after as a bare repo. Because the .git folder remains, git assumes the repository is non-bare. Removing the .git folder and working directory data solved the issue.

you can try to install another package:

pip install mysql-connector-python

This package worked fine for me and I got no issues to install.

Use a lambda expression

MyClass result = list.Find(x => x.GetId() == "xy");

Note: C# has a built-in syntax for properties. Instead of writing getter and setter methods (as you might be used to from Java), write

private string _id;
public string Id
{
    get
    {
        return _id;
    }
    set
    {
        _id = value;
    }
}

value is a contextual keyword known only in the set accessor. It represents the value assigned to the property.

Since this pattern is often used, C# provides auto-implemented properties. They are a short version of the code above; however, the backing variable is hidden and not accessible (it is accessible from within the class in VB, however).

public string Id { get; set; }

You can simply use properties as if you were accessing a field:

var obj = new MyClass();
obj.Id = "xy";       // Calls the setter with "xy" assigned to the value parameter.
string id = obj.Id;  // Calls the getter.

Using properties, you would search for items in the list like this

MyClass result = list.Find(x => x.Id == "xy"); 

You can also use auto-implemented properties if you need a read-only property:

public string Id { get; private set; }

This enables you to set the Id within the class but not from outside. If you need to set it in derived classes as well you can also protect the setter

public string Id { get; protected set; }

And finally, you can declare properties as virtual and override them in deriving classes, allowing you to provide different implementations for getters and setters; just as for ordinary virtual methods.

Since C# 6.0 (Visual Studio 2015, Roslyn) you can write getter-only auto-properties with an inline initializer

public string Id { get; } = "A07"; // Evaluated once when object is initialized.

You can also initialize getter-only properties within the constructor instead. Getter-only auto-properties are true read-only properties, unlike auto-implemented properties with a private setter.

This works also with read-write auto-properties:

public string Id { get; set; } = "A07";

Beginning with C# 6.0 you can also write properties as expression-bodied members

public DateTime Yesterday => DateTime.Date.AddDays(-1); // Evaluated at each call.
// Instead of
public DateTime Yesterday { get { return DateTime.Date.AddDays(-1); } }

See: .NET Compiler Platform ("Roslyn")
         New Language Features in C# 6

Starting with C# 7.0, both, getter and setter, can be written with expression bodies:

public string Name
{
    get => _name;                                // getter
    set => _name = value;                        // setter
}

Note that in this case the setter must be an expression. It cannot be a statement. The example above works, because in C# an assignment can be used as an expression or as a statement. The value of an assignment expression is the assigned value where the assignment itself is a side effect. This allows you to assign a value to more than one variable at once: x = y = z = 0 is equivalent to x = (y = (z = 0)) and has the same effect as the statements x = 0; y = 0; z = 0;.

The next version of the language, C# 9.0, probably available in November 2020, will allow read-only (or better initialize-once) properties that you can initialize in an object initializer. This is currently not possible with getter-only properties.

public string Name { get; init; }

var c = new C { Name = "c-sharp" };

You can set EditText's backgroundTint value to a specific color. If you set transparent color, underbar should gone.

android:backgroundTint="@color/Transparent"

<color name="Transparent">#00000000</color>

But you can use this in Api v21(Lollipop) or higher

You can only do this to you own photos. Due to recent upgrades, Facebook has made this more difficult. To do this, go to the album page where the photo is that you want to link to. You should see thumbnail images of the photos in the album. Hold down the "Control" or "Command" key while clicking the photo that you wish to link to. A new browser tab will open with the picture you clicked. Under the picture there is a URL that you can send to others to share the photo. You might have to have the privacy settings for that album set so that anyone can see the photos in that album. If you don't the person who clicks the link may have to be signed in and also be your "friend."

Here is an example of one of my photos: http://www.facebook.com/photo.php?pid=43764341&l=0d8a526a64&id=25502298 -it's my cat.

Update:

The link below the photo no longer appears. Once you open the photo in a new tab you can right click the photo (Control+click for Mac users) and click "Copy Image URL" or similar and then share this link. Based on my tests the person who clicks the link doesn't need to use Facebook. The photo will load without the Facebook interface. Like this - http://a1.sphotos.ak.fbcdn.net/hphotos-ak-ash4/189088_867367406856_25502298_43764341_1304758_n.jpg

Another R package for aggregating multiple regression models into LaTeX tables is texreg.

$text = "Cats chase mice";
$filename = "somefile.txt";
$fh = fopen($filename, "a");
fwrite($fh, $text);
fclose($fh);

You use fwrite()

Why not do it?

var result= ctx.table.Where(x => x.UserName == "Value").FirstOrDefault();

if(result?.field == value)
{
  // Match!
}

The issue as others have stated more elegantly is that you either have a Cartesian product of the OneToMany columns or you're doing N+1 Selects. Either possible gigantic resultset or chatty with the database, respectively.

I'm surprised this isn't mentioned but this how I have gotten around this issue... I make a semi-temporary ids table. I also do this when you have the IN () clause limitation.

This doesn't work for all cases (probably not even a majority) but it works particularly well if you have a lot of child objects such that the Cartesian product will get out of hand (ie lots of OneToMany columns the number of results will be a multiplication of the columns) and its more of a batch like job.

First you insert your parent object ids as batch into an ids table. This batch_id is something we generate in our app and hold onto.

INSERT INTO temp_ids 
    (product_id, batch_id)
    (SELECT p.product_id, ? 
    FROM product p ORDER BY p.product_id
    LIMIT ? OFFSET ?);

Now for each OneToMany column you just do a SELECT on the ids table INNER JOINing the child table with a WHERE batch_id= (or vice versa). You just want to make sure you order by the id column as it will make merging result columns easier (otherwise you will need a HashMap/Table for the entire result set which may not be that bad).

Then you just periodically clean the ids table.

This also works particularly well if the user selects say 100 or so distinct items for some sort of bulk processing. Put the 100 distinct ids in the temporary table.

Now the number of queries you are doing is by the number of OneToMany columns.

You're population is from the server-side. Using the registerclientscript will put the script at the beginning of the form.. you'll want to use RegisterStartupScript(Block) to have the script placed at the end of the page in question.

The former tries to run the script before the text area exists in the dom, the latter will run the script after that element in the page is created.

I'll broadly agree with Vagrant on the cause:

1. your action was executing, writing markup to response stream
2. the stream was unbuffered forcing the response headers to get written before the markup writing could begin.
3. Your view encountered a runtime error
4. Exception handler kicks in trying to set the status code to something else non-200
5. Fails because the headers have already been sent.

Where I disagree with Vagrant is the "cause no errors in binding" remedy - you could still encounter runtime errors in View binding e.g. null reference exceptions.

A better solution for this is to ensure that Response.BufferOutput = true; before any bytes are sent to the Response stream. e.g. in your controller action or On_Begin_Request in application. This enables server transfers, cookies/headers to be set etc. right the way up to naturally ending response, or calling end/flush.

Of course also check that buffer isn't being flushed/set to false further down in the stack too.

MSDN Reference: HttpResponse.BufferOutput

I was getting the same error when trying to run a publish process through powershell on my build machine.

My build machine only has the Windows SDK installed and not Visual Studio and as such it appears that I'm missing some common files and registry values that are normally present when Visual Studio is installed. After looking into vsvars32.bat a bit more carefully I noticed that it was where the "Cannot determine the location of the VS Common Tools folder" error was being reported located under the GetVSCommonToolsDir label. It appears that in this batch file that since the VS7 sub-key doesn't exist on my machine it blanks out the %VS100COMNTOOLS% environment variable and reports back the specified error.

In my case it appears that this error is happening for me because I don't have Visual Studio or some other necessary components installed on my build machine and thus the registry key doesn't exist. Perhaps your error is due to something similar such as 32-bit vs 64-bit registry or 32-bit vs 64-bit VS command prompt? Testing the line of code that is failing from the batch directly in the command prompt should give you a clue about why the registry or file path isn't being resolved properly.

You can create regular expressions in JS in one of two ways:

1. Using regular expression literal - /ab{2}/g
2. Using the regular expression constructor - new RegExp("ab{2}", "g") .

Regular expression literals are constant, and can not be used with variables. This could be achieved using the constructor. The stracture of the RegEx constructor is

new RegExp(regularExpressionString, modifiersString)

You can embed variables as part of the regularExpressionString. For example,

var pattern="cd"
var repeats=3
new RegExp(`${pattern}{${repeats}}`, "g") 

This will match any appearance of the pattern cdcdcd.

If you want use custom roles, you can do this:

CustomRoles class:

public static class CustomRoles
{
    public const string Administrator = "Administrador";
    public const string User = "Usuario";
}

Usage

[Authorize(Roles = CustomRoles.Administrator +","+ CustomRoles.User)]

If you have few roles, maybe you can combine them (for clarity) like this:

public static class CustomRoles
{
     public const string Administrator = "Administrador";
     public const string User = "Usuario";
     public const string AdministratorOrUser = Administrator + "," + User;  
}

Usage

[Authorize(Roles = CustomRoles.AdministratorOrUser)]

I realize this question was asked a long time ago, but I came here looking for answers and wasn't satisfied with anything I could find. I finally found the answer here:

https://www.tutorialsteacher.com/mvc/htmlhelper-dropdownlist-dropdownlistfor

To get the results from the form, use the FormCollection and then pull each individual value out by it's model name thus:

yourRecord.FieldName = Request.Form["FieldNameInModel"];

As far as I could tell it makes absolutely no difference what argument name you give to the FormCollection - use Request.Form["NameFromModel"] to retrieve it.

No, I did not dig down to see how th4e magic works under the covers. I just know it works...

I hope this helps somebody avoid the hours I spent trying different approaches before I got it working.

Notepad++ will forget your macros unless you map them to hotkeys via Settings - Shortcut mapper - Macros before exiting Notepad++ (as per https://superuser.com/questions/332481/how-can-i-add-a-macro-in-notepad. Tested with Notepad v6.8.3 on Windows7.)

I'm pretty sure you can do explicit casting here.

foo f = (foo)value;

So long as you say the enum inherits(?) from int, which you have.

enum foo : int

EDIT Yes it turns out that by default, an enums underlying type is int. You can however use any integral type except char.

You can also cast from a value that's not in the enum, producing an invalid enum. I suspect this works by just changing the type of the reference and not actually changing the value in memory.

enum (C# Reference)
Enumeration Types (C# Programming Guide)

Open res -> values -> styles.xml and to your <style> add this line replacing with your image path <item name="android:windowBackground">@drawable/background</item>. Example:

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:windowBackground">@drawable/background</item>
    </style>

</resources>

There is a <item name ="android:colorBackground">@color/black</item> also, that will affect not only your main window background but all the component in your app. Read about customize theme here.

If you want version specific styles:

If a new version of Android adds theme attributes that you want to use, you can add them to your theme while still being compatible with old versions. All you need is another styles.xml file saved in a values directory that includes the resource version qualifier. For example:

res/values/styles.xml        # themes for all versions
res/values-v21/styles.xml    # themes for API level 21+ only

Because the styles in the values/styles.xml file are available for all versions, your themes in values-v21/styles.xml can inherit them. As such, you can avoid duplicating styles by beginning with a "base" theme and then extending it in your version-specific styles.

Read more here(doc in theme).

For Spring Boot, the accepted answer will overwrite duplicate properties with lower priority ones. This solution will collect the properties into a SortedMap and take only the highest priority duplicate properties.

final SortedMap<String, String> sortedMap = new TreeMap<>();
for (final PropertySource<?> propertySource : env.getPropertySources()) {
    if (!(propertySource instanceof EnumerablePropertySource))
        continue;
    for (final String name : ((EnumerablePropertySource<?>) propertySource).getPropertyNames())
        sortedMap.computeIfAbsent(name, propertySource::getProperty);
}

jmespath works really quite easy and well, http://jmespath.org/ It is being used by Amazon in the AWS command line interface, so it´s got to be quite stable.

char(13) is CR. For DOS-/Windows-style CRLF linebreaks, you want char(13)+char(10), like:

'This is line 1.' + CHAR(13)+CHAR(10) + 'This is line 2.'

I had a similar issue, trying to run a WCF-based HttpSelfHostServer in Debug under my VisualStudio 2013. I tried every possible direction (turn off firewall, disabling IIS completely to eliminate the possibility localhost port is taken by some other service, etc.).

Eventually, what "did the trick" (solved the problem) was re-running VisualStudio 2013 as Administrator.

Amazing.

Instead of modifying the height and width attributes of the image, try modifying the CSS height and width.

myimg = document.getElementById('myimg');
myimg.style.height = "50px";
myimg.style.width = "50px";

One common "gotcha" is that the height and width styles are strings that include a unit, like "px" in the example above.

Edit - I think that setting the height and width directly instead of using style.height and style.width should work. It would also have the advantage of already having the original dimensions. Can you post a bit of your code? Are you sure you're in standards mode instead of quirks mode?

This should work:

myimg = document.getElementById('myimg');
myimg.height = myimg.height * 2;
myimg.width = myimg.width * 2;

I was getting this error though there were no (obvious) brackets in my URL, and in my situation the --globoff command will not solve the issue.

For example (doing this on on mac in iTerm2):

for endpoint in $(grep some_string output.txt); do curl "http://1.2.3.4/api/v1/${endpoint}" ; done

I have grep aliased to "grep --color=always". As a result, the above command will result in this error, with some_string highlighted in whatever colour you have grep set to:

curl: (3) bad range in URL position 31:
http://1.2.3.4/api/v1/lalalasome_stringlalala

The terminal was transparently translating the [colour\codes]some_string[colour\codes] into the expected no-special-characters URL when viewed in terminal, but behind the scenes the colour codes were being sent in the URL passed to curl, resulting in brackets in your URL.

Solution is to not use match highlighting.

Download the Print.js from http://printjs.crabbly.com/

$http({
    url: "",
    method: "GET",
    headers: {
        "Content-type": "application/pdf"
    },
    responseType: "arraybuffer"
}).success(function (data, status, headers, config) {
    var pdfFile = new Blob([data], {
        type: "application/pdf"
    });
    var pdfUrl = URL.createObjectURL(pdfFile);
    //window.open(pdfUrl);
    printJS(pdfUrl);
    //var printwWindow = $window.open(pdfUrl);
    //printwWindow.print();
}).error(function (data, status, headers, config) {
    alert("Sorry, something went wrong")
});

XmlDocument d = new XmlDocument();
d.Load(@"D:\Work_Time_Calculator\10-07-2013.xml");
XmlNodeList n = d.GetElementsByTagName("Short_Fall");
if(n != null) {
    Console.WriteLine(n[0].InnerText); //Will output '08:29:57'
}

or you could wrap in foreach loop to print each value

XmlDocument d = new XmlDocument();
d.Load(@"D:\Work_Time_Calculator\10-07-2013.xml");
XmlNodeList n = d.GetElementsByTagName("Short_Fall");
if(n != null) {
    foreach(XmlNode curr in n) {
        Console.WriteLine(curr.InnerText);
    }
}

Call the TreeView.OnAfterSelect() protected method after you programatically select the node.

Following document published by W3C also describes the differences between SOAP 1.1 and 1.2:

• From SOAP/1.1 to SOAP Version 1.2 in 9 points

we can change Content-type like this in $.post

$.post(url,data, function (data, status, xhr) { xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=utf-8");});

In my view, dates and times should be handled as two separate input boxes for it to be most usable and efficient for the user to input. Let the user input one thing at a time is a good principle, imho.

I use the core UI DatePicker, and the following time picker.

This one is inspired by the one Google Calendar uses:

jQuery timePicker:
examples: http://labs.perifer.se/timedatepicker/
project on github: https://github.com/perifer/timePicker

I found it to be the best among all of the alternatives. User can input fast, it looks clean, is simple, and allows user to input specific times down to the minute.

PS: In my view: sliders (used by some alternative time pickers) take too many clicks and require mouse precision from the user (which makes input slower).

resultList = results.Where(x=>x.Id != 2).ToList();

There's a little Linq helper I like that's easy to implement and can make queries with "where not" conditions a little easier to read:

public static IEnumerable<T> ExceptWhere<T>(this IEnumerable<T> source, Predicate<T> predicate)
{
    return source.Where(x=>!predicate(x));
}

//usage in above situation
resultList = results.ExceptWhere(x=>x.Id == 2).ToList();

You could do something like the following which is really easy and very clean:

public function __construct()    
{
   $arguments = func_get_args(); 

   switch(sizeof(func_get_args()))      
   {
    case 0: //No arguments
        break; 
    case 1: //One argument
        $this->do_something($arguments[0]); 
        break;              
    case 2:  //Two arguments
        $this->do_something_else($arguments[0], $arguments[1]); 
        break;            
   }
}

As everyone else here has stated: You cannot upload just any file automatically with JavaScript.

HOWEVER! If you have access to the information you want to send in your code (i.e., not C:\passwords.txt), then you can upload it as a blob-type, and then treat it as a file.

What the server will end up seeing will be indistinguishable from someone actually setting the value of <input type="file" />. The trick, ultimately, is to begin a new XMLHttpRequest() with the server...

function uploadFile (data) {
        // define data and connections
    var blob = new Blob([JSON.stringify(data)]);
    var url = URL.createObjectURL(blob);
    var xhr = new XMLHttpRequest();
    xhr.open('POST', 'myForm.php', true);
    
        // define new form
    var formData = new FormData();
    formData.append('someUploadIdentifier', blob, 'someFileName.json');
        
        // action after uploading happens
    xhr.onload = function(e) {
        console.log("File uploading completed!");
    };
    
        // do the uploading
    console.log("File uploading started!");
    xhr.send(formData);
}

    // This data/text below is local to the JS script, so we are allowed to send it!
uploadFile({'hello!':'how are you?'});

So, what could you possibly use this for? I use it for uploading HTML5 canvas elements as jpg's. This saves the user the trouble of having to open a file input element, only to select the local, cached image that they just resized, modified, etc.. But it should work for any file type.

You can stop a query which is being processed by this

Find the Id of the query process by => show processlist;

Then => kill id;

This might be a use case for a context manager. Leaving aside allowances for Windows OS, here's my suggestion:

#!/usr/bin/env python3
# file: 'readchar.py'
"""
Implementation of a way to get a single character of input
without waiting for the user to hit <Enter>.
(OS is Linux, Ubuntu 14.04)
"""

import tty, sys, termios

class ReadChar():
    def __enter__(self):
        self.fd = sys.stdin.fileno()
        self.old_settings = termios.tcgetattr(self.fd)
        tty.setraw(sys.stdin.fileno())
        return sys.stdin.read(1)
    def __exit__(self, type, value, traceback):
        termios.tcsetattr(self.fd, termios.TCSADRAIN, self.old_settings)

def test():
    while True:
        with ReadChar() as rc:
            char = rc
        if ord(char) <= 32:
            print("You entered character with ordinal {}."\
                        .format(ord(char)))
        else:
            print("You entered character '{}'."\
                        .format(char))
        if char in "^C^D":
            sys.exit()

if __name__ == "__main__":
    test()

you can put the input inside a form like this:-

<script>
    $(document).ready(function(){
        $(document).on('click','#send', function(){
            $('#hid').val(data)
            document.forms["myForm"].submit();
        })
    })
</script>

<form id="myForm" action="/request_page url/" method="post">
    <input type="hidden" id="hid" name="hid"/>
</form>
<div id="send">Send Data</div>

Microsoft just announced .NET Core v 3.0, which is a much-improved version of .NET Core.

For more details visit this great article: Difference Between .NET Framework and .NET Core from April 2019.

The easiest way to use PhantomJS in python is via Selenium. The simplest installation method is

1. Install NodeJS
2. Using Node's package manager install phantomjs: npm -g install phantomjs-prebuilt
3. install selenium (in your virtualenv, if you are using that)

After installation, you may use phantom as simple as:

from selenium import webdriver

driver = webdriver.PhantomJS() # or add to your PATH
driver.set_window_size(1024, 768) # optional
driver.get('https://google.com/')
driver.save_screenshot('screen.png') # save a screenshot to disk
sbtn = driver.find_element_by_css_selector('button.gbqfba')
sbtn.click()

If your system path environment variable isn't set correctly, you'll need to specify the exact path as an argument to webdriver.PhantomJS(). Replace this:

driver = webdriver.PhantomJS() # or add to your PATH

... with the following:

driver = webdriver.PhantomJS(executable_path='/usr/local/lib/node_modules/phantomjs/lib/phantom/bin/phantomjs')

References:

• http://selenium-python.readthedocs.io/
• How do I set a proxy for phantomjs/ghostdriver in python webdriver?
• https://dzone.com/articles/python-testing-phantomjs

Yes, it will block the other method because synchronized method applies to the WHOLE class object as pointed .... but anyway it will block the other thread execution ONLY while performing the sum in whatever method addA or addB it enters, because when it finish ... the one thread will FREE the object and the other thread will access the other method and so on perfectly working.

I mean the "synchronized" is made precisely for blocking the other thread from accessing another while in a specific code execution. SO FINALLY THIS CODE WILL WORK FINE.

As a final note, if there is an 'a' and 'b' variables, not just an unique variable 'a' or whatever other name, there is no need to synchronize this methods cause it is perfectly safe accesing other var (Other memory location).

class X {

private int a;
private int b;

public void addA(){
    a++;
}

public void addB(){
    b++;
}}

Will work as well

Both ItemListener as well as ActionListener, in case of JCheckBox have the same behaviour. However, major difference is ItemListener can be triggered by calling the setSelected(true) on the checkbox. As a coding practice do not register both ItemListener as well as ActionListener with the JCheckBox, in order to avoid inconsistency.

yet another fun case:

scrollview.superview.userInteractionEnabled must be true

I wasted 2+hrs chasing this just to figure out the parent is UIImageView which, naturally, has userInteractionEnabled == false

Here's a simple example of pretty printing JSON to the console in a nice way in Python, without requiring the JSON to be on your computer as a local file:

import pprint
import json 
from urllib.request import urlopen # (Only used to get this example)

# Getting a JSON example for this example 
r = urlopen("https://mdn.github.io/fetch-examples/fetch-json/products.json")
text = r.read() 

# To print it
pprint.pprint(json.loads(text))

I believe the most RECENT and UPDATED for AndroidX and backward compatibility. The best way of doing (Kotlin and Java) this should be done as:

NotificationManagerCompat.from(context).cancel(NOTIFICATION_ID)

Or to cancel all notifications is:

NotificationManagerCompat.from(context).cancelAll()

Made for AndroidX or Support Libraries.

DELETE message.*, usersmessage.* from users, usersmessage WHERE message.messageid=usersmessage.messageid AND message.messageid='1'

In Angular 7 the for loop is like below

var values = [
        {
            "name":"Thomas",
            "password":"thomas"
        },
        { 
            "name":"linda",
            "password":"linda"
        }];

for (let item of values)
{
}

The code won't work without an icon. So, add the setSmallIcon call to the builder chain like this for it to work:

.setSmallIcon(R.drawable.icon)

Android Oreo (8.0) and above

Android 8 introduced a new requirement of setting the channelId property by using a NotificationChannel.

private NotificationManager mNotificationManager;

NotificationCompat.Builder mBuilder =
    new NotificationCompat.Builder(mContext.getApplicationContext(), "notify_001");
Intent ii = new Intent(mContext.getApplicationContext(), RootActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 0, ii, 0);

NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
bigText.bigText(verseurl);
bigText.setBigContentTitle("Today's Bible Verse");
bigText.setSummaryText("Text in detail");

mBuilder.setContentIntent(pendingIntent);
mBuilder.setSmallIcon(R.mipmap.ic_launcher_round);
mBuilder.setContentTitle("Your Title");
mBuilder.setContentText("Your text");
mBuilder.setPriority(Notification.PRIORITY_MAX);
mBuilder.setStyle(bigText);

mNotificationManager =
    (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);

// === Removed some obsoletes
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O)
{
    String channelId = "Your_channel_id";
    NotificationChannel channel = new NotificationChannel(
                                        channelId,
                                        "Channel human readable title",
                                        NotificationManager.IMPORTANCE_HIGH);
   mNotificationManager.createNotificationChannel(channel);
  mBuilder.setChannelId(channelId);
}

mNotificationManager.notify(0, mBuilder.build());

It's sad that Oracle doesn't allow this, I get asked to do this by developers all the time..

Here's a slightly dangerous, somewhat quick and dirty method:

1. Ensure you have enough space to copy the Table
2. Note any Constraints, Grants, Indexes, Synonyms, Triggers, um.. maybe some other stuff - that belongs to a Table - that I haven't thought about?
3. CREATE TABLE table_right_columns AS SELECT column1 column3, column2 FROM table_wrong_columns; -- Notice how we correct the position of the columns :)
4. DROP TABLE table_wrong_columns;
5. 'ALTER TABLE table_right_columns RENAME TO table_wrong_columns;`
6. Now the yucky part: recreate all those items you noted in step 2 above
7. Check what code is now invalid, and recompile to check for errors

And next time you create a table, please consider the future requirements! ;)

It can happen when your view property name and name inside column section of data table is not matching . Make sure that property name and column data name are matching

You are looking for dynamic_cast<B*>(pointer)

1. I believe this has already been answered by other users before me, so I only add it for the sake of completeness: the with statement simplifies exception handling by encapsulating common preparation and cleanup tasks in so-called context managers. More details can be found in PEP 343. For instance, the open statement is a context manager in itself, which lets you open a file, keep it open as long as the execution is in the context of the with statement where you used it, and close it as soon as you leave the context, no matter whether you have left it because of an exception or during regular control flow. The with statement can thus be used in ways similar to the RAII pattern in C++: some resource is acquired by the with statement and released when you leave the with context.

2. Some examples are: opening files using with open(filename) as fp:, acquiring locks using with lock: (where lock is an instance of threading.Lock). You can also construct your own context managers using the contextmanager decorator from contextlib. For instance, I often use this when I have to change the current directory temporarily and then return to where I was:

   from contextlib import contextmanager
   import os
   
   @contextmanager
   def working_directory(path):
       current_dir = os.getcwd()
       os.chdir(path)
       try:
           yield
       finally:
           os.chdir(current_dir)
   
   with working_directory("data/stuff"):
       # do something within data/stuff
   # here I am back again in the original working directory
   

   Here's another example that temporarily redirects sys.stdin, sys.stdout and sys.stderr to some other file handle and restores them later:

   from contextlib import contextmanager
   import sys
   
   @contextmanager
   def redirected(**kwds):
       stream_names = ["stdin", "stdout", "stderr"]
       old_streams = {}
       try:
           for sname in stream_names:
               stream = kwds.get(sname, None)
               if stream is not None and stream != getattr(sys, sname):
                   old_streams[sname] = getattr(sys, sname)
                   setattr(sys, sname, stream)
           yield
       finally:
           for sname, stream in old_streams.iteritems():
               setattr(sys, sname, stream)
   
   with redirected(stdout=open("/tmp/log.txt", "w")):
        # these print statements will go to /tmp/log.txt
        print "Test entry 1"
        print "Test entry 2"
   # back to the normal stdout
   print "Back to normal stdout again"
   

   And finally, another example that creates a temporary folder and cleans it up when leaving the context:

   from tempfile import mkdtemp
   from shutil import rmtree
   
   @contextmanager
   def temporary_dir(*args, **kwds):
       name = mkdtemp(*args, **kwds)
       try:
           yield name
       finally:
           shutil.rmtree(name)
   
   with temporary_dir() as dirname:
       # do whatever you want
   

NetBeans 8.0.2 (PHP) has two problems: the SubVersion client and the Twig templates. In order to drastically improve overall performance, a) disable teh "Twig Templates" plugin (this will also deactivate Symphony2, in case you may require it) and b) override the SVN client with this switch:

run.args.extra=-J-DsvnClientAdapterFactory=commandline

^ project.properties lets one define the CLI arguments individually (which may also make sense with RAM settings and other customization). guess one could re-enable Twig once that linked bug-report has been closed. re-scanning isn't really the issue, while the rescan performs as it should ...in a timely manner.

Just was testing some more and noticed, that on Linux it runs way smoother with the Oracle JDK than the (common) OpenJDK - have seen there is even one version of NetBeans bundled with it.

The simplest way is to use deque:

from collections import deque

def tail(filename, n=10):
    with open(filename) as f:
        return deque(f, n)

Simply put, the ++ and -- operators don't exist in Python because they wouldn't be operators, they would have to be statements. All namespace modification in Python is a statement, for simplicity and consistency. That's one of the design decisions. And because integers are immutable, the only way to 'change' a variable is by reassigning it.

Fortunately we have wonderful tools for the use-cases of ++ and -- in other languages, like enumerate() and itertools.count().

Per google official documentation, use %1$s and %2$s http://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling

Hello, %1$s! You have %2$d new messages.

The opposite is using :not

e.g.

selection:not(:hover) { rules }

Here's what's actually happening localhost means that you want to open htdocs. First it will search for any file named index.php or index.html. If one of those exist it will open the file. If neither of those exist then it will open all folder/file inside htdocs directory which is what you want.

So, the simplest solution is to rename index.php or index.html to index2.php etc.

Cast the dtype of the col to str and you can perform vectorised slicing calling str:

In [29]:
df['new_col'] = df['First'].astype(str).str[0]
df

Out[29]:
   First  Second new_col
0    123     234       1
1     22    4353       2
2     32     355       3
3    453     453       4
4     45     345       4
5    453     453       4
6     56      56       5

if you need to you can cast the dtype back again calling astype(int) on the column

Simple use .filter() ^[docs] (AND) using the multiple selector ^[docs] (OR):

$('[myc="blue"]').filter('[myid="1"],[myid="2"]');

In general, chaining selectors, like a.foo.bar[attr=value] is some kind of AND selector.

jQuery has extensive documentation about the supported selectors, it's worth a read.

Try this, considering your allowed ports. Store your .pem file in your Documents folder for instance.

To gain access to it now all you have to do is cd [directory], which moves you to the directory of the allotted file. You can first type ls, to list the directory contents you are currently in:

ls
cd /Documents
chmod 400 mycertificate.pem
ssh -i "mycertificate.pem" [email protected] -p 80

Update to Davids answer to even detect browsers that do not support pushstate:

if (history.pushState) {
  window.history.pushState("object or string", "Title", "/new-url");
} else {
  document.location.href = "/new-url";
}

I found the answer.

Cast integer to string:

myOldIntValue|string

Cast string to integer:

myOldStrValue|int

You don't need to add the concat package, you can do this via cssmin like this:

cssmin : {
      options: {
            keepSpecialComments: 0
      },
      minify : {
            expand : true,
            cwd : '/library/css',
            src : ['*.css', '!*.min.css'],
            dest : '/library/css',
            ext : '.min.css'
      },
      combine : {
        files: {
            '/library/css/app.combined.min.css': ['/library/css/main.min.css', '/library/css/font-awesome.min.css']
        }
      }
    }

And for js, use uglify like this:

uglify: {
      my_target: {
        files: {
            '/library/js/app.combined.min.js' : ['/app.js', '/controllers/*.js']
        }
      }
    }

I have tried 2 options which both work on my company's NTLM authenticated proxy. Option 1 is to use --proxy http://user:pass@proxyAddress:proxyPort

If you are still having trouble I would suggest installing a proxy authentication service (I use CNTLM) and pointing pip at it ie something like --proxy http://localhost:3128

Updated for iOS 8.0

Since iOS 8.0, you will need to use UIAlertController as the following:

-(void)alertMessage:(NSString*)message
{
    UIAlertController* alert = [UIAlertController
          alertControllerWithTitle:@"Alert"
          message:message
          preferredStyle:UIAlertControllerStyleAlert];

    UIAlertAction* defaultAction = [UIAlertAction 
          actionWithTitle:@"OK" style:UIAlertActionStyleDefault
         handler:^(UIAlertAction * action) {}];

    [alert addAction:defaultAction];
    [self presentViewController:alert animated:YES completion:nil];
}

Where self in my example is a UIViewController, which implements "presentViewController" method for a popup.

David

Enable "Show All Files" for the specific project (you might need to hit "Refresh" to see them)**.

The folders/files that are not part of your project appear slightly "lighter" in the project tree.

Right click the folders/files you want to add and click "Include In Project". It will recursively add folders/files to the project.

** These buttons are located on the mini Solution Explorer toolbar.

** Make sure you are NOT in debug mode.

EDIT Summary and reccomendations

Using a for each cell in range construct is not in itself slow. What is slow is repeated access to Excel in the loop (be it reading or writing cell values, format etc, inserting/deleting rows etc).

What is too slow depends entierly on your needs. A Sub that takes minutes to run might be OK if only used rarely, but another that takes 10s might be too slow if run frequently.

So, some general advice:

1. keep it simple at first. If the result is too slow for your needs, then optimise
2. focus on optimisation of the content of the loop
3. don't just assume a loop is needed. There are sometime alternatives
4. if you need to use cell values (a lot) inside the loop, load them into a variant array outside the loop.
5. a good way to avoid complexity with inserts is to loop the range from the bottom up
   (for index = max to min step -1)
6. if you can't do that and your 'insert a row here and there' is not too many, consider reloading the array after each insert
7. If you need to access cell properties other than value, you are stuck with cell references
8. To delete a number of rows consider building a range reference to a multi area range in the loop, then delete that range in one go after the loop

eg (not tested!)

Dim rngToDelete as range
for each rw in rng.rows
    if need to delete rw then

        if rngToDelete is nothing then
            set rngToDelete = rw
        else
            set rngToDelete = Union(rngToDelete, rw)
        end if

    endif
next
rngToDelete.EntireRow.Delete

Original post

Conventional wisdom says that looping through cells is bad and looping through a variant array is good. I too have been an advocate of this for some time. Your question got me thinking, so I did some short tests with suprising (to me anyway) results:

test data set: a simple list in cells A1 .. A1000000 (thats 1,000,000 rows)

Test case 1: loop an array

Dim v As Variant
Dim n As Long

T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
    'i = i + 1
    'i = r.Cells(n, 1).Value 'i + 1
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Array Count = " & Format(n, "#,###")

Result:

Array Time = 0.249 sec
Array Count = 1,000,001

Test Case 2: loop the range

T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000#
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")

Result:

Range Time = 0.296 sec
Range Count = 1,000,000

So,looping an array is faster but only by 19% - much less than I expected.

Test 3: loop an array with a cell reference

T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
v = r
For n = LBound(v, 1) To UBound(v, 1)
    i = r.Cells(n, 1).Value
Next
Debug.Print "Array Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Array Count = " & Format(i, "#,###")

Result:

Array Time = 5.897 sec
Array Count = 1,000,000

Test case 4: loop range with a cell reference

T1 = GetTickCount
Set r = Range("$A$1", Cells(Rows.Count, "A").End(xlUp)).Cells
For Each c In r
    i = c.Value
Next c
Debug.Print "Range Time = " & (GetTickCount - T1) / 1000# & " sec"
Debug.Print "Range Count = " & Format(r.Cells.Count, "#,###")

Result:

Range Time = 2.356 sec
Range Count = 1,000,000

So event with a single simple cell reference, the loop is an order of magnitude slower, and whats more, the range loop is twice as fast!

So, conclusion is what matters most is what you do inside the loop, and if speed really matters, test all the options

FWIW, tested on Excel 2010 32 bit, Win7 64 bit All tests with

• ScreenUpdating off,
• Calulation manual,
• Events disabled.

Well, your syntax doesn't match the link you included, which specifies:

 CREATE TABLE name (column defs) 
    CONSTRAINT constraint_name    -- This is new
    UNIQUE (col_name1, col_name2) ON CONFLICT REPLACE

You can try the following solution:

curl -v -X POST -d @payload.xml https://<API Path> -k -H "Content-Type: application/xml;charset=utf-8"

CREATE VIEW MyView AS
   SELECT Column, Value FROM Table;


SELECT Column FROM MyView WHERE Value = 1;

Is the proper solution in MySQL, some other SQLs let you define Views more exactly.

Note: Unless the View is very complicated, MySQL will optimize this just fine.

run the below code in Terminal

makesure You are inside your project folder in terminal

ng g s servicename --module=app.module

If you have N nodes, there are N - 1 directed edges than can lead from it (going to every other node). Therefore, the maximum number of edges is N * (N - 1).

Another option to handle all requests I used in my practice for cases when onload can't help is to handle javascript submit, html submit, ajax requests. These code should be added in the top of body element to create listener before any form rendered and submitted.

In example I set hidden field to any form on page on its submission even if it happens before page load.

//Handles jquery, dojo, etc. ajax requests
(function (send) {
    var token = $("meta[name='_csrf']").attr("content");
    var header = $("meta[name='_csrf_header']").attr("content");
    XMLHttpRequest.prototype.send = function (data) {
        if (isNotEmptyString(token) && isNotEmptyString(header)) {
            this.setRequestHeader(header, token);
        }
        send.call(this, data);
    };
})(XMLHttpRequest.prototype.send);


//Handles javascript submit
(function (submit) {
    HTMLFormElement.prototype.submit = function (data) {
        var token = $("meta[name='_csrf']").attr("content");
        var paramName = $("meta[name='_csrf_parameterName']").attr("content");
        $('<input>').attr({
            type: 'hidden',
            name: paramName,
            value: token
        }).appendTo(this);

        submit.call(this, data);
    };
})(HTMLFormElement.prototype.submit);


//Handles html submit
document.body.addEventListener('submit', function (event) {
    var token = $("meta[name='_csrf']").attr("content");
    var paramName = $("meta[name='_csrf_parameterName']").attr("content");
    $('<input>').attr({
        type: 'hidden',
        name: paramName,
        value: token
    }).appendTo(event.target);
}, false);

Off the top of my head, you can eliminate the lambda:

reduce(list.__add__, map(list, [mi.image_set.all() for mi in list_of_menuitems]))

Or even eliminate the map, since you've already got a list-comp:

reduce(list.__add__, [list(mi.image_set.all()) for mi in list_of_menuitems])

You can also just express this as a sum of lists:

sum([list(mi.image_set.all()) for mi in list_of_menuitems], [])

Don't create your own list - pytz has a built-in set:

import pytz
set(pytz.all_timezones_set)  
>>> {'Europe/Vienna', 'America/New_York', 'America/Argentina/Salta',..}

You can then apply a timezone:

import datetime
tz = pytz.timezone('Pacific/Johnston')
ct = datetime.datetime.now(tz=tz)
>>> ct.isoformat()
2017-01-13T11:29:22.601991-05:00

Or if you already have a datetime object that is TZ aware (not naive):

# This timestamp is in UTC
my_ct = datetime.datetime.now(tz=pytz.UTC)

# Now convert it to another timezone
new_ct = my_ct.astimezone(tz)
>>> new_ct.isoformat()
2017-01-13T11:29:22.601991-05:00

import os

def execute(cmd, callback):
    for line in iter(os.popen(cmd).readline, ''): 
            callback(line[:-1])

execute('ls -a', print)

input[type=text]

This will select all the input type text in a web-page.

Swift 4: Use following code

let number = 2.4
let string = String(format: "%.2f", number)

Python 3.6

Just to make it clear, you can use f-string formatting. This has almost the same syntax as the format method, but make it a bit nicer.

Example:

print(f'{numvar:.9f}')

More reading about the new f string:

• What's new in Python 3.6 (same link as above)
• PEP official documentation
• Python official documentation
• Really good blog post - talks about performance too

Here is a diagram of the execution times of the various tested methods (from last link above):

Using the standard mysql.createPool(), connections are lazily created by the pool. If you configure the pool to allow up to 100 connections, but only ever use 5 simultaneously, only 5 connections will be made. However if you configure it for 500 connections and use all 500 they will remain open for the durations of the process, even if they are idle!

This means if your MySQL Server max_connections is 510 your system will only have 10 mySQL connections available until your MySQL Server closes them (depends on what you have set your wait_timeout to) or your application closes! The only way to free them up is to manually close the connections via the pool instance or close the pool.

mysql-connection-pool-manager module was created to fix this issue and automatically scale the number of connections dependant on the load. Inactive connections are closed and idle connection pools are eventually closed if there has not been any activity.

    // Load modules
const PoolManager = require('mysql-connection-pool-manager');

// Options
const options = {
  ...example settings
}

// Initialising the instance
const mySQL = PoolManager(options);

// Accessing mySQL directly
var connection = mySQL.raw.createConnection({
  host     : 'localhost',
  user     : 'me',
  password : 'secret',
  database : 'my_db'
});

// Initialising connection
connection.connect();

// Performing query
connection.query('SELECT 1 + 1 AS solution', function (error, results, fields) {
  if (error) throw error;
  console.log('The solution is: ', results[0].solution);
});

// Ending connection
connection.end();

Ref: https://www.npmjs.com/package/mysql-connection-pool-manager

And here the solution for C#/Xamarin.Android:

var token = await FirebaseInstallations.Instance.GetToken(forceRefresh: false).AsAsync<InstallationTokenResult>();

I know this question already has an answer, but I found out an even simpler way of doing this.

Just add

<tr height = 20px></tr>

Into the table where you want to have an empty row. It works fine in my program and it's probably the quickest solution possible.

As Google gives this answer for the search netlogo pdf, here's the netlogo version of the above python code

    ;; Normal distribution cumulative density function
    to-report normcdf [x mu sigma]
        let t x - mu
        let y 0.5 * erfcc [ - t / ( sigma * sqrt 2.0)]
        if ( y > 1.0 ) [ set y 1.0 ]
        report y
    end

    ;; Normal distribution probability density function
    to-report normpdf [x mu sigma]
        let u = (x - mu) / abs sigma
        let y = 1 / ( sqrt [2 * pi] * abs sigma ) * exp ( - u * u / 2.0)
        report y
    end

    ;; Complementary error function
    to-report erfcc [x]
        let z abs x
        let t 1.0 / (1.0 + 0.5 * z)
        let r t *  exp ( - z * z -1.26551223 + t * (1.00002368 + t * (0.37409196 +
            t * (0.09678418 + t * (-0.18628806 + t * (.27886807 +
            t * (-1.13520398 +t * (1.48851587 +t * (-0.82215223 +
            t * .17087277 )))))))))
        ifelse (x >= 0) [ report r ] [report 2.0 - r]
    end

node-dev

node-dev is great alternative to both nodemon and supervisor for developers who like to get growl (or libnotify) notifications on their desktop whenever the server restarts or when there is an error or change occur in file.

Installation:

npm install -g node-dev

Use node-dev, instead of node:

node-dev app.js

Notification on Changing file so server start automatically

console out put

var splitEle = xn.Attributes["split"];

if (splitEle !=null){
    return splitEle .Value;
}

Both commands are correct

php_value post_max_size 30M 

php_value upload_max_filesize 30M 

BUT to use the .htaccess you have to enable rewrite_module in Apache config file. In httpd.conf find this line:

# LoadModule rewrite_module modules/mod_rewrite.so

and remove the #.

https://www.electronjs.org/apps/asarui

UI for Asar, Extract All, or drag extract file/directory

For those of you who are using MacOS and like me perhaps have been circling the internet as to why some R packages do not install here is a possible help.

If you get a non-zero exit status first check to ensure all dependencies are installed as well. Read through the messaging. If that is checked off, then look for indications such as gfortran: No such a file or directory. That might be due to Apple OS compiler issues that some packages will not install unless you use their binary version. Look for binary zip file in the package cran.r-project.org page, download it and use the following command to get the package installed:

install.packages("/PATH/zip file ", repos = NULL, type="source")

A couple of other scenarios where background-image should be used:

• When you want the image to change when the mouse is hovered upon it.
• When you want to add rounded corners to the image. If you use img, the image leaks out of the rounded corners.

Copying to the clipboard is a tricky task to do in Javascript in terms of browser compatibility. The best way to do it is using a small flash. It will work on every browser. You can check it in this article.

Here's how to do it for Internet Explorer:

function copy (str)
{
    //for IE ONLY!
    window.clipboardData.setData('Text',str);
}

Use value instanceof YourClass

You could just use list comprehension:

property_asel = [val for is_good, val in zip(good_objects, property_a) if is_good]

or

property_asel = [property_a[i] for i in good_indices]

The latter one is faster because there are fewer good_indices than the length of property_a, assuming good_indices are precomputed instead of generated on-the-fly.

Edit: The first option is equivalent to itertools.compress available since Python 2.7/3.1. See @Gary Kerr's answer.

property_asel = list(itertools.compress(property_a, good_objects))

You're trying to use the MatFormFieldComponent in SearchComponent but you're not importing the MatFormFieldModule (which exports MatFormFieldComponent); you only export it.

Your MaterialModule needs to import it.

@NgModule({
  imports: [
    MatFormFieldModule,
  ],
  exports: [
    MatButtonModule,
    MatFormFieldModule,
    MatInputModule,
    MatRippleModule,
  ],
  declarations: [
    SearchComponent,
  ],
})
export class MaterialModule { }

you can use show instead of shown for making the function to load just before modal open, instead of after modal open.

$('#code').on('show.bs.modal', function (e) {
  // do something...
})

Thought to add this here in case someone finds it useful. @ostrokach already mentioned how you can merge the data frames across rows which is

df_row_merged = pd.concat([df_a, df_b], ignore_index=True)

To merge across columns, you can use the following syntax:

df_col_merged = pd.concat([df_a, df_b], axis=1)

I have tried all the above solutions. But it was not working in any way.

Finally, I just uninstalled XAMPP and installed it again. Then it worked for me.

Now I am able to run the server on any port (including 80).

I just found this thread and wanted to add to the discussion if the person doesn't want to use a batch file to restart services. In Windows there is an option if you go to Services, service properties, then recovery. Here you can set parameters for the service. Like to restart the service if the service stops. Also, you can even have a second fail attempt do something different as in restart the computer.

Try something like this:

$(function(){
  $('input[type="radio"]').click(function(){
    if ($(this).is(':checked'))
    {
      alert($(this).val());
    }
  });
});

If you give your radio buttons a class then you can replace the code $('input[type="radio"]') with $('.someclass').

You have edit text and list. In OnStart/On Create, you should set focus on list view: Listview.requestfocus()

If you want to use ArrayList or LinkedList, it seems that the answer is no. Although there are some classes in java that you can set them fixed size, like PriorityQueue, ArrayList and LinkedList can't, because there is no constructor for these two to specify capacity.

If you want to stick to ArrayList/LinkedList, one easy solution is to check the size manually each time.

public void fixedAdd(List<Integer> list, int val, int size) {
    list.add(val);
    if(list.size() > size) list.remove(0);
}

LinkedList is better than ArrayList in this situation. Suppose there are many values to be added but the list size is quite samll, there will be many remove operations. The reason is that the cost of removing from ArrayList is O(N), but only O(1) for LinkedList.

1. Installing OpenCV 2.4.3

First, get OpenCV 2.4.3 from sourceforge.net. Its a self-extracting so just double click to start the installation. Install it in a directory, say C:\.

Wait until all files get extracted. It will create a new directory C:\opencv which contains OpenCV header files, libraries, code samples, etc.

Now you need to add the directory C:\opencv\build\x86\vc10\bin to your system PATH. This directory contains OpenCV DLLs required for running your code.

Open Control Panel → System → Advanced system settings → Advanced Tab → Environment variables...

On the System Variables section, select Path (1), Edit (2), and type C:\opencv\build\x86\vc10\bin; (3), then click Ok.

On some computers, you may need to restart your computer for the system to recognize the environment path variables.

This will completes the OpenCV 2.4.3 installation on your computer.

2. Create a new project and set up Visual C++

Open Visual C++ and select File → New → Project... → Visual C++ → Empty Project. Give a name for your project (e.g: cvtest) and set the project location (e.g: c:\projects).

Click Ok. Visual C++ will create an empty project.

Make sure that "Debug" is selected in the solution configuration combobox. Right-click cvtest and select Properties → VC++ Directories.

Select Include Directories to add a new entry and type C:\opencv\build\include.

Click Ok to close the dialog.

Back to the Property dialog, select Library Directories to add a new entry and type C:\opencv\build\x86\vc10\lib.

Click Ok to close the dialog.

Back to the property dialog, select Linker → Input → Additional Dependencies to add new entries. On the popup dialog, type the files below:

opencv_calib3d243d.lib
opencv_contrib243d.lib
opencv_core243d.lib
opencv_features2d243d.lib
opencv_flann243d.lib
opencv_gpu243d.lib
opencv_haartraining_engined.lib
opencv_highgui243d.lib
opencv_imgproc243d.lib
opencv_legacy243d.lib
opencv_ml243d.lib
opencv_nonfree243d.lib
opencv_objdetect243d.lib
opencv_photo243d.lib
opencv_stitching243d.lib
opencv_ts243d.lib
opencv_video243d.lib
opencv_videostab243d.lib

Note that the filenames end with "d" (for "debug"). Also note that if you have installed another version of OpenCV (say 2.4.9) these filenames will end with 249d instead of 243d (opencv_core249d.lib..etc).

Click Ok to close the dialog. Click Ok on the project properties dialog to save all settings.

NOTE:

These steps will configure Visual C++ for the "Debug" solution. For "Release" solution (optional), you need to repeat adding the OpenCV directories and in Additional Dependencies section, use:

opencv_core243.lib
opencv_imgproc243.lib
...

instead of:

opencv_core243d.lib
opencv_imgproc243d.lib
...

You've done setting up Visual C++, now is the time to write the real code. Right click your project and select Add → New Item... → Visual C++ → C++ File.

Name your file (e.g: loadimg.cpp) and click Ok. Type the code below in the editor:

#include <opencv2/highgui/highgui.hpp>
#include <iostream>

using namespace cv;
using namespace std;

int main()
{
    Mat im = imread("c:/full/path/to/lena.jpg");
    if (im.empty()) 
    {
        cout << "Cannot load image!" << endl;
        return -1;
    }
    imshow("Image", im);
    waitKey(0);
}

The code above will load c:\full\path\to\lena.jpg and display the image. You can use any image you like, just make sure the path to the image is correct.

Type F5 to compile the code, and it will display the image in a nice window.

And that is your first OpenCV program!

3. Where to go from here?

Now that your OpenCV environment is ready, what's next?

1. Go to the samples dir → c:\opencv\samples\cpp.
2. Read and compile some code.
3. Write your own code.

\w is not a word boundary, it matches any word character, including underscores: [a-zA-Z0-9_]. \b is a word boundary, that is, it matches the position between a word and a non-alphanumeric character: \W or [^\w].

These implementations may vary from language to language though.

There has been a lot of great answers already, but most of them won't work with array of primitives (like int[], long[], char[], byte[], etc.)

In Java 8 and above, you can box the array with:

Integer[] boxedArr = Arrays.stream(arr).boxed().toArray(Integer[]::new);

Then convert to set using stream:

Stream.of(boxedArr).collect(Collectors.toSet());

Theres a setting max_input_time (on Apache) for many webservers that defines how long they will wait for post data, regardless of the size. If this time runs out the connection is closed without even touching the php.

So your problem is not necessarily solvable with php only but you will need to change the server settings too.

If you need two or more dealings with the filter, is possible to chain them:

{{ value | decimalRound: 2 | currencySimbol: 'U$' }} 
// 11.1111 becomes U$ 11.11

Generically, do/while is good for any sort of loop construct where one must execute the loop at least once. It is possible to emulate this sort of looping through either a straight while or even a for loop, but often the result is a little less elegant. I'll admit that specific applications of this pattern are fairly rare, but they do exist. One which springs to mind is a menu-based console application:

do {
    char c = read_input();

    process_input(c);
} while (c != 'Q');

In order to use mod_rewrite you can type the following command in the terminal:

 $ su

 $ passwd **********

 # a2enmod rewrite

Restart apache2 after

 # service apache2 restart

 # /etc/init.d/apache2 restart

or

 # service apache2 restart

I think that main difference is whether you frequently need to insert or remove stuff from the top of the list.

With an array, if you remove something from the top of list than the complexity is o(n) because all of the indices of the array elements will have to shift.

With a linked list, it is o(1) because you need only create the node, reassign the head and assign the reference to next as the previous head.

When frequently inserting or removing at the end of the list, arrays are preferable because the complexity will be o(1), no reindexing is required, but for a linked list it will be o(n) because you need to go from the head to the last node.

I think that searching in both linked list and arrays will be o(log n) because you will be probably be using a binary search.

Not sure what you meant, but you can permanently turn showing whitespaces on and off in Settings -> Editor -> General -> Appearance -> Show whitespaces.

Also, you can set it for a current file only in View -> Active Editor -> Show WhiteSpaces.

Edit:

Had some free time since it looks like a popular issue, I had written a plugin to inspect the code for such abnormalities. It is called Zero Width Characters locator and you're welcome to give it a try.

this did the trick for me.

<div class="CenterImage">
         <asp:Image ID="BrandImage" runat="server" />
</div>

'Note: do not have a css class assocaited to 'BrandImage' in this case

CSS:

.CenterImage {
    position:absolute; 
    width:100%; 
    height:100%
}

.CenterImage img {
    margin: 0 auto;
    display: block;
}

A great summary by @addyosmani

Shamelessly copied from https://addyosmani.com/blog/script-priorities/

Add the library before you start the script.You can add any of these following CDN to start it.

Google:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>

Microsoft

<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.2.1.min.js"></script>

Jquery

If you want any other Jquery cdn version check this link.

After this:

<script type="text/javascript">
$(function(){
    //your stuff
});
or
$(document).ready(function(){
    //your stuff
});    
</script>

Wordpress:

<script type="text/javascript">
var $ = jQuery;
jQuery(document).ready(function($){
     //your stuff
});
</script>

You have to change MySQL password policy to LOW.

login as root

mysql -u root -p

change policy

SET GLOBAL validate_password_policy=LOW;

or

SET GLOBAL validate_password_policy=0;

exit

exit

restart MySQL service

sudo service mysql restart

You have to change the MySQL password policy to Low = 0 / Medium = 1 / High = 2.

SET GLOBAL validate_password_policy=0;
SET GLOBAL validate_password_policy=1;    
SET GLOBAL validate_password_policy=2;

Occurs when the text content of an element is changed through the user interface.

It's not quite an alias for keyup because keyup will fire even if the key does nothing (for example: pressing and then releasing the Control key will trigger a keyup event).

A good way to think about it is like this: it's an event that triggers whenever the input changes. This includes -- but is not limited to -- pressing keys which modify the input (so, for example, Ctrl by itself will not trigger the event, but Ctrl-V to paste some text will), selecting an auto-completion option, Linux-style middle-click paste, drag-and-drop, and lots of other things.

See this page and the comments on this answer for more details.

To send a variable value through URL in response.sendRedirect(). I have used it for one variable, you can also use it for two variable by proper concatenation.

String value="xyz";

response.sendRedirect("/content/test.jsp?var="+value);

Without seeing more of the surrounding code I can't give a definite answer, but I have two theories.

1. You're not using UIViewController's designated initializer initWithNibName:bundle:. Try using it instead of just init.

2. Also, self may be one of the tab bar controller's view controllers. Always present view controllers from the topmost view controller, which means in this case ask the tab bar controller to present the overlay view controller on behalf of the view controller. You can still keep any callback delegates to the real view controller, but you must have the tab bar controller present and dismiss.

typeof is only good for returning the "primitive" types such as number, boolean, object, string and symbols. You can also use instanceof to test if an object is of a specific type.

function MyObj(prop) {
  this.prop = prop;
}

var obj = new MyObj(10);

console.log(obj instanceof MyObj && obj instanceof Object); // outputs true

Your k^th FFT result's frequency is 2*pi*k/N.

You need to add the attribute "formnovalidate" to the control that is triggering the browser validation, e.g.:

<input type="image" id="fblogin" formnovalidate src="/images/facebook_connect.png">

You can also explicitly tell maven which java version to compile for. You can try adding the maven-compiler-plugin to your pom.

<project>
  [...]
  <build>
    [...]
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.1</version>
        <configuration>
          <source>1.7</source>
          <target>1.7</target>
        </configuration>
      </plugin>
    </plugins>
    [...]
  </build>
  [...]
</project>

If you imported a maven project into an IDE, then there is probably a maven setting in your IDE for default compiler that your maven runner is using.

If you don't want to install anything but do want to download an SVN or GIT repository, then you can use this: http://downloadsvn.codeplex.com/

I have nothing to do with this project, but I just used it now and it saved me a few minutes. Maybe it will help someone.

I just had a heck of a time getting android sdk dependencies installed via command line and since the documentation that comes with the tools and online are woefully lacking, I thought I'd post what I discovered here.

I'm working with android sdk r24.4.1 for linux. There are two commands that you can run to list the available packages:

android list sdk

and the more exhaustive:

android list sdk --all

The package numbers for specific packages differ for each command above! For example, the former lists package API 23.1 revision 3 as package #3 and the latter lists it as #29.

Now, there are two different ways to install using the android command.

tools/android update sdk --no-ui --filter <package number>

and

tools/android update sdk -u -a -t <package number>

Given that the install commands each can take the package # as a parameter, which package number do you use? After much online searching and trial and error, I discovered that

android update sdk --no-ui --filter uses the package numbers from android list sdk

and

android update sdk -u -a -t uses the package numbers from android list sdk --all

In other words - to install API 23.1 revision 3 you can do either:

android update sdk --no-ui --filter 3

or

android update sdk -u -a -t 29

Crazy, but it works.

I have a perfect solution for this problem. After doing following simple steps you will be able to Import your source codes in Eclipse!

First of all, the reason why you can not Import your project into Eclipse workstation is that you do not have .project and .classpath file.

Now we know why this happens, so all we need to do is to create .project and .classpath file inside the project file. Here is how you do it:

First create .classpath file:

1. create a new txt file and name it as .classpath

2. copy paste following codes and save it:

   <?xml version="1.0" encoding="UTF-8"?> <classpath> <classpathentry kind="src" path="src"/> <classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/> <classpathentry kind="output" path="bin"/> </classpath>

Then create .project file:

1. create a new txt file and name it as .project

2. copy paste following codes:

   <?xml version="1.0" encoding="UTF-8"?> <projectDescription> <name>HereIsTheProjectName</name> <comment></comment> <projects> </projects> <buildSpec> <buildCommand> <name>org.eclipse.jdt.core.javabuilder</name> <arguments> </arguments> </buildCommand> </buildSpec> <natures> <nature>org.eclipse.jdt.core.javanature</nature> </natures> </projectDescription>

3. you have to change the name field to your project name. you can do this in line 3 by changing HereIsTheProjectName to your own project name. then save it.

That is all, Enjoy!!

It seems you may be more comfortable with developing in PHP you let this hold you back from utilizing the full potential with web applications.

It is indeed possible to have PHP render partials and whole views, but I would not recommend it.

To fully utilize the possibilities of HTML and javascript to make a web application, that is, a web page that acts more like an application and relies heavily on client side rendering, you should consider letting the client maintain all responsibility of managing state and presentation. This will be easier to maintain, and will be more user friendly.

I would recommend you to get more comfortable thinking in a more API centric approach. Rather than having PHP output a pre-rendered view, and use angular for mere DOM manipulation, you should consider having the PHP backend output the data that should be acted upon RESTFully, and have Angular present it.

Using PHP to render the view:

/user/account

if($loggedIn)
{
    echo "<p>Logged in as ".$user."</p>";
}
else
{
    echo "Please log in.";
}

How the same problem can be solved with an API centric approach by outputting JSON like this:

api/auth/

{
  authorized:true,
  user: {
      username: 'Joe', 
      securityToken: 'secret'
  }
}

and in Angular you could do a get, and handle the response client side.

$http.post("http://example.com/api/auth", {})
.success(function(data) {
    $scope.isLoggedIn = data.authorized;
});

To blend both client side and server side the way you proposed may be fit for smaller projects where maintainance is not important and you are the single author, but I lean more towards the API centric way as this will be more correct separation of conserns and will be easier to maintain.

You might need to change your path by:

import os
path=os.chdir(str('Here should be the path to your file')) #This command changes directory

This is what worked for me at least! Hope it works for you too!

This works for me. use MAX(CONVERT(date, ReportDate)) to make sure you have date value

select max( CONVERT(date, ReportDate)) FROM [TraxHistory]

function isNumber(n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
}

Where it is documented:

From the API documentation under the has_many association in "Module ActiveRecord::Associations::ClassMethods"

collection.build(attributes = {}, …) Returns one or more new objects of the collection type that have been instantiated with attributes and linked to this object through a foreign key, but have not yet been saved. Note: This only works if an associated object already exists, not if it‘s nil!

The answer to building in the opposite direction is a slightly altered syntax. In your example with the dogs,

Class Dog
   has_many :tags
   belongs_to :person
end

Class Person
  has_many :dogs
end

d = Dog.new
d.build_person(:attributes => "go", :here => "like normal")

or even

t = Tag.new
t.build_dog(:name => "Rover", :breed => "Maltese")

You can also use create_dog to have it saved instantly (much like the corresponding "create" method you can call on the collection)

How is rails smart enough? It's magic (or more accurately, I just don't know, would love to find out!)

Assume your file looks like this and is named test.txt (space delimited):

1 2
3 4
5 6
7 8

Then:

#!/usr/bin/python

import numpy as np
import matplotlib.pyplot as plt

with open("test.txt") as f:
    data = f.read()

data = data.split('\n')

x = [row.split(' ')[0] for row in data]
y = [row.split(' ')[1] for row in data]

fig = plt.figure()

ax1 = fig.add_subplot(111)

ax1.set_title("Plot title...")    
ax1.set_xlabel('your x label..')
ax1.set_ylabel('your y label...')

ax1.plot(x,y, c='r', label='the data')

leg = ax1.legend()

plt.show()

I find that browsing the gallery of plots on the matplotlib site helpful for figuring out legends and axes labels.

function getProductionGroupItems($itemId){
     $this->db->select("*");
     $this->db->where("id",$itemId);
     $this->db->or_where("parent_item_id",$itemId);

    /*********** order by *********** */
     $this->db->order_by("id", "asc");

     $q=$this->db->get("recipe_products");
     if($q->num_rows()>0){
         foreach($q->result() as $row){
             $data[]=$row;
         }
         return $data;
     }
    return false;
}

Joel is it that @SearchLetter hasn't been declared yet? Also the length of @SearchLetter2 isn't long enough for 't%'. Try a varchar of a longer length.

Beside using loop and for comprehension, you could also use map

lst = [("aaaa8"),("bb8"),("ccc8"),("dddddd8")]
mylst = map(lambda each:each.strip("8"), lst)
print mylst

If you write a function then once you leave it all names inside disappear.

The concept is called namespace and it's so good, it made it into the Zen of Python:

Namespaces are one honking great idea -- let's do more of those!

The namespace of IPython can likewise be reset with the magic command %reset -f. (The -f means "force"; in other words, "don't ask me if I really want to delete all the variables, just do it.")

Short Answer

Use this CSS:

.notransition {
  -webkit-transition: none !important;
  -moz-transition: none !important;
  -o-transition: none !important;
  transition: none !important;
}

Plus either this JS (without jQuery)...

someElement.classList.add('notransition'); // Disable transitions
doWhateverCssChangesYouWant(someElement);
someElement.offsetHeight; // Trigger a reflow, flushing the CSS changes
someElement.classList.remove('notransition'); // Re-enable transitions

Or this JS with jQuery...

$someElement.addClass('notransition'); // Disable transitions
doWhateverCssChangesYouWant($someElement);
$someElement[0].offsetHeight; // Trigger a reflow, flushing the CSS changes
$someElement.removeClass('notransition'); // Re-enable transitions

... or equivalent code using whatever other library or framework you're working with.

Explanation

This is actually a fairly subtle problem.

First up, you probably want to create a 'notransition' class that you can apply to elements to set their *-transition CSS attributes to none. For instance:

.notransition {
  -webkit-transition: none !important;
  -moz-transition: none !important;
  -o-transition: none !important;
  transition: none !important;
}

_{(Minor aside - note the lack of an -ms-transition in there. You don't need it. The first version of Internet Explorer to support transitions at all was IE 10, which supported them unprefixed.)}

But that's just style, and is the easy bit. When you come to try and use this class, you'll run into a trap. The trap is that code like this won't work the way you might naively expect:

// Don't do things this way! It doesn't work!
someElement.classList.add('notransition')
someElement.style.height = '50px' // just an example; could be any CSS change
someElement.classList.remove('notransition')

Naively, you might think that the change in height won't be animated, because it happens while the 'notransition' class is applied. In reality, though, it will be animated, at least in all modern browsers I've tried. The problem is that the browser is caching the styling changes that it needs to make until the JavaScript has finished executing, and then making all the changes in a single reflow. As a result, it does a reflow where there is no net change to whether or not transitions are enabled, but there is a net change to the height. Consequently, it animates the height change.

You might think a reasonable and clean way to get around this would be to wrap the removal of the 'notransition' class in a 1ms timeout, like this:

// Don't do things this way! It STILL doesn't work!
someElement.classList.add('notransition')
someElement.style.height = '50px' // just an example; could be any CSS change
setTimeout(function () {someElement.classList.remove('notransition')}, 1);

but this doesn't reliably work either. I wasn't able to make the above code break in WebKit browsers, but on Firefox (on both slow and fast machines) you'll sometimes (seemingly at random) get the same behaviour as using the naive approach. I guess the reason for this is that it's possible for the JavaScript execution to be slow enough that the timeout function is waiting to execute by the time the browser is idle and would otherwise be thinking about doing an opportunistic reflow, and if that scenario happens, Firefox executes the queued function before the reflow.

The only solution I've found to the problem is to force a reflow of the element, flushing the CSS changes made to it, before removing the 'notransition' class. There are various ways to do this - see here for some. The closest thing there is to a 'standard' way of doing this is to read the offsetHeight property of the element.

One solution that actually works, then, is

someElement.classList.add('notransition'); // Disable transitions
doWhateverCssChangesYouWant(someElement);
someElement.offsetHeight; // Trigger a reflow, flushing the CSS changes
someElement.classList.remove('notransition'); // Re-enable transitions

Here's a JS fiddle that illustrates the three possible approaches I've described here (both the one successful approach and the two unsuccessful ones): http://jsfiddle.net/2uVAA/131/