THIS works

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In a way, std::map is a tree (it is required to have the same performance characteristics as a balanced binary tree) but it doesn't expose other tree functionality. The likely reasoning behind not including a real tree data structure was probably just a matter of not including everything in the stl. The stl can be looked as a framework to use in implementing your own algorithms and data structures.

In general, if there's a basic library functionality that you want, that's not in the stl, the fix is to look at BOOST.

Otherwise, there's a bunch of libraries out there, depending on the needs of your tree.

I had the same problem, and tried a lot of different variants. After some tries I became able to sudo gem install, but still have problem to install it without sudo.
Finally I found a decission - reinstalling of rvm helped me. Probably it can save time somebody else.

Most likely, as mentioned by others, it is a class carrying the css values:

.clear{clear: both;} 

in order to prevent any more page elements from extending into the footer element. It is a quick and easy way of making sure that pages with columns of varying heights don't cause the footer to render oddly, by possibly setting its top position at the end of a shorter column.

In many cases it is not necessary, but if you are using best-practice standards it is a good idea to use, if you are floating page elements left and right. It functions with page elements similar to the way a horizontal rule works with text, to ensure proper and complete sepperation.

JOIN

When using JOIN against an entity associations, JPA will generate a JOIN between the parent entity and the child entity tables in the generated SQL statement.

So, taking your example, when executing this JPQL query:

FROM Employee emp
JOIN emp.department dep

Hibernate is going to generate the following SQL statement:

SELECT emp.*
FROM employee emp
JOIN department dep ON emp.department_id = dep.id

Note that the SQL SELECT clause contains only the employee table columns, and not the department ones. To fetch the department table columns, we need to use JOIN FETCH instead of JOIN.

JOIN FETCH

So, compared to JOIN, the JOIN FETCH allows you to project the joining table columns in the SELECT clause of the generated SQL statement.

So, in your example, when executing this JPQL query:

FROM Employee emp
JOIN FETCH emp.department dep

Hibernate is going to generate the following SQL statement:

SELECT emp.*, dept.*
FROM employee emp
JOIN department dep ON emp.department_id = dep.id

Note that, this time, the department table columns are selected as well, not just the ones associated with the entity listed in the FROM JPQL clause.

Also, JOIN FETCH is a great way to address the LazyInitializationException when using Hibernate as you can initialize entity associations using the FetchType.LAZY fetching strategy along with the main entity you are fetching.

Did you tried JQuery's scrollTo method? http://demos.flesler.com/jquery/scrollTo/

Or you can extend JQuery and add your custom mentod:

jQuery.fn.extend({
 scrollToMe: function () {
   var x = jQuery(this).offset().top - 100;
   jQuery('html,body').animate({scrollTop: x}, 400);
}});

Then you can call this method like:

$("#header").scrollToMe();

how about something along these lines

<style type="text/css">
  #container {
    margin: 0 auto;
    text-align: center; /* for IE */
  }

  #yourdiv {
    width: 400px;
    border: 1px solid #000;
  }
</style>

....

<div id="container">
  <div id="yourdiv">
    weee
  </div>
</div>

Default behaviour of PowerShell is just to dump everything that falls out of a pipeline without being picked up by another pipeline element or being assigned to a variable (or redirected) into Out-Host. What Out-Host does is obviously host-dependent.

Just letting things fall out of the pipeline is not a substitute for Write-Host which exists for the sole reason of outputting text in the host application.

If you want output, then use the Write-* cmdlets. If you want return values from a function, then just dump the objects there without any cmdlet.

Xampp has the php application under: C:\xampp\php file directory ... if you input C:\xampp\php\php in CMD it should enter the php application.

Here an alternative method. It uses Get-WmiObject CIM_DATAFILE to select the version.

(Get-WmiObject -Class CIM_DataFile -Filter "Name='C:\\Windows\\explorer.exe'" | Select-Object Version).Version

An interface defines a contract for an API, that is a set of methods that both implementer and user of the API agree upon. An interface does not have an instanced implementation, hence no constructor.

The use case you describe is akin to an abstract class in which the constructor calls a method of an abstract method which is implemented in an child class.

The inherent problem here is that while the base constructor is being executed, the child object is not constructed yet, and therfore in an unpredictable state.

To summarize: is it asking for trouble when you call overloaded methods from parent constructors, to quote mindprod:

In general you must avoid calling any non-final methods in a constructor. The problem is that instance initialisers / variable initialisation in the derived class is performed after the constructor of the base class.

string currentDirectory = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
string archiveFolder = Path.Combine(currentDirectory, "archive");
string[] files = Directory.GetFiles(archiveFolder, "*.zip");

The first parameter is the path. The second is the search pattern you want to use.

Since I'm disturbed by the verbosity of some of the new NUnit patterns, I use something like this to create code that is cleaner for me personally:

public void AssertBusinessRuleException(TestDelegate code, string expectedMessage)
{
    var ex = Assert.Throws<BusinessRuleException>(code);
    Assert.AreEqual(ex.Message, expectedMessage);
}

public void AssertException<T>(TestDelegate code, string expectedMessage) where T:Exception
{
    var ex = Assert.Throws<T>(code);
    Assert.AreEqual(ex.Message, expectedMessage);
}

The usage is then:

AssertBusinessRuleException(() => user.MakeUserActive(), "Actual exception message");

Teylyn's answer worked great for me, but I had to modify it a bit to get proper results. I want to provide an extended explanation for whoever would need it.

My setup was as follows:

• Sheet1: full data of 2014
• Sheet2: updated rows for 2015 in A1:D50, sorted by first column
• Sheet3: merged rows
• My data does not have a header row

I put the following formula in cell A1 of Sheet3:

=iferror(vlookup(Sheet1!A$1;Sheet2!$A$1:$D$50;column(A1);false);Sheet1!A1)

Read this as follows: Take the value of the first column in Sheet1 (old data). Look up in Sheet2 (updated rows). If present, output the value from the indicated column in Sheet2. On error, output the value for the current column of Sheet1.

Notes:

• In my version of the formula, ";" is used as parameter separator instead of ",". That is because I am located in Europe and we use the "," as decimal separator. Change ";" back to "," if you live in a country where "." is the decimal separator.

• A$1: means always take column 1 when copying the formula to a cell in a different column. $A$1 means: always take the exact cell A1, even when copying the formula to a different row or column.

After pasting the formula in A1, I extended the range to columns B, C, etc., until the full width of my table was reached. Because of the $-signs used, this gives the following formula's in cells B1, C1, etc.:

=IFERROR(VLOOKUP('Sheet1'!$A1;'Sheet2'!$A$1:$D$50;COLUMN(B1);FALSE);'Sheet1'!B1)
=IFERROR(VLOOKUP('Sheet1'!$A1;'Sheet2'!$A$1:$D$50;COLUMN(C1);FALSE);'Sheet1'!C1)

and so forth. Note that the lookup is still done in the first column. This is because VLOOKUP needs the lookup data to be sorted on the column where the lookup is done. The output column is however the column where the formula is pasted.

Next, select a rectangle in Sheet 3 starting at A1 and having the size of the data in Sheet1 (same number of rows and columns). Press Ctrl-D to copy the formulas of the first row to all selected cells.

Cells A2, A3, etc. will get these formulas:

=IFERROR(VLOOKUP('Sheet1'!$A2;'Sheet2'!$A$1:$D$50;COLUMN(A2);FALSE);'Sheet1'!A2)
=IFERROR(VLOOKUP('Sheet1'!$A3;'Sheet2'!$A$1:$D$50;COLUMN(A3);FALSE);'Sheet1'!A3)

Because of the use of $-signs, the lookup area is constant, but input data is used from the current row.

Here's a new cool way to do it using the ES6 spread operator:

let arr = [...nl];

You need to use Arrow function ()=> ES6 feature to preserve this context within setTimeout.

// var that = this;                             // no need of this line
this.messageSuccess = true;

setTimeout(()=>{                           //<<<---using ()=> syntax
      this.messageSuccess = false;
 }, 3000);

You can use the following script to convert jupyter notebook to Python script, or view the code directly.

To do this, write the following contents into a file cat_ipynb, then chmod +x cat_ipynb.

#!/usr/bin/env python
import sys
import json

for file in sys.argv[1:]:
    print('# file: %s' % file)
    print('# vi: filetype=python')
    print('')
    code = json.load(open(file))

    for cell in code['cells']:
        if cell['cell_type'] == 'code':
            print('# -------- code --------')
            for line in cell['source']:
                print(line, end='')
            print('\n')
        elif cell['cell_type'] == 'markdown':
            print('# -------- markdown --------')
            for line in cell['source']:
                print("#", line, end='')
            print('\n')

Then you can use

cat_ipynb your_notebook.ipynb > output.py

Or show it with vi directly

cat_ipynb your_notebook.ipynb | view -

you can also use just

StringFormat=d

in your datagrid column for date time showing

finally it will be

   <sdk:DataGridTextColumn  Binding="{Binding Path=DeliveryDate,StringFormat=d}" Header="Delivery date" Width="*" />

the out put will look like

If you didn't push the update in remote then the simple solution is remove last local commit using following command: git reset HEAD^. Then add all files and commit again.

git-pull - Fetch from and integrate with another repository or a local branch

git pull [options] [<repository> [<refspec>...]]

You can refer official git doc https://git-scm.com/docs/git-pull

Ex :

git pull origin dev

To limit what you run as sudo, you could run

python non_sudo_stuff.py
sudo -E python -c "import os; os.system('sudo echo 1')"

without needing to store the password. The -E parameter passes your current user's env to the process. Note that your shell will have sudo priveleges after the second command, so use with caution!

You can use read_csv from pandas to skip these lines.

import pandas as pd

data_df = pd.read_csv('data.csv', error_bad_lines=False)

Summary (TL;DR)

Updated June 3rd, 2017

Redis is more powerful, more popular, and better supported than memcached. Memcached can only do a small fraction of the things Redis can do. Redis is better even where their features overlap.

For anything new, use Redis.

Memcached vs Redis: Direct Comparison

Both tools are powerful, fast, in-memory data stores that are useful as a cache. Both can help speed up your application by caching database results, HTML fragments, or anything else that might be expensive to generate.

Points to Consider

When used for the same thing, here is how they compare using the original question's "Points to Consider":

• Read/write speed: Both are extremely fast. Benchmarks vary by workload, versions, and many other factors but generally show redis to be as fast or almost as fast as memcached. I recommend redis, but not because memcached is slow. It's not.
• Memory usage: Redis is better.
  • memcached: You specify the cache size and as you insert items the daemon quickly grows to a little more than this size. There is never really a way to reclaim any of that space, short of restarting memcached. All your keys could be expired, you could flush the database, and it would still use the full chunk of RAM you configured it with.
  • redis: Setting a max size is up to you. Redis will never use more than it has to and will give you back memory it is no longer using.
  • I stored 100,000 ~2KB strings (~200MB) of random sentences into both. Memcached RAM usage grew to ~225MB. Redis RAM usage grew to ~228MB. After flushing both, redis dropped to ~29MB and memcached stayed at ~225MB. They are similarly efficient in how they store data, but only one is capable of reclaiming it.
• Disk I/O dumping: A clear win for redis since it does this by default and has very configurable persistence. Memcached has no mechanisms for dumping to disk without 3rd party tools.
• Scaling: Both give you tons of headroom before you need more than a single instance as a cache. Redis includes tools to help you go beyond that while memcached does not.

memcached

Memcached is a simple volatile cache server. It allows you to store key/value pairs where the value is limited to being a string up to 1MB.

It's good at this, but that's all it does. You can access those values by their key at extremely high speed, often saturating available network or even memory bandwidth.

When you restart memcached your data is gone. This is fine for a cache. You shouldn't store anything important there.

If you need high performance or high availability there are 3rd party tools, products, and services available.

redis

Redis can do the same jobs as memcached can, and can do them better.

Redis can act as a cache as well. It can store key/value pairs too. In redis they can even be up to 512MB.

You can turn off persistence and it will happily lose your data on restart too. If you want your cache to survive restarts it lets you do that as well. In fact, that's the default.

It's super fast too, often limited by network or memory bandwidth.

If one instance of redis/memcached isn't enough performance for your workload, redis is the clear choice. Redis includes cluster support and comes with high availability tools (redis-sentinel) right "in the box". Over the past few years redis has also emerged as the clear leader in 3rd party tooling. Companies like Redis Labs, Amazon, and others offer many useful redis tools and services. The ecosystem around redis is much larger. The number of large scale deployments is now likely greater than for memcached.

The Redis Superset

Redis is more than a cache. It is an in-memory data structure server. Below you will find a quick overview of things Redis can do beyond being a simple key/value cache like memcached. Most of redis' features are things memcached cannot do.

Documentation

Redis is better documented than memcached. While this can be subjective, it seems to be more and more true all the time.

redis.io is a fantastic easily navigated resource. It lets you try redis in the browser and even gives you live interactive examples with each command in the docs.

There are now 2x as many stackoverflow results for redis as memcached. 2x as many Google results. More readily accessible examples in more languages. More active development. More active client development. These measurements might not mean much individually, but in combination they paint a clear picture that support and documentation for redis is greater and much more up-to-date.

Persistence

By default redis persists your data to disk using a mechanism called snapshotting. If you have enough RAM available it's able to write all of your data to disk with almost no performance degradation. It's almost free!

In snapshot mode there is a chance that a sudden crash could result in a small amount of lost data. If you absolutely need to make sure no data is ever lost, don't worry, redis has your back there too with AOF (Append Only File) mode. In this persistence mode data can be synced to disk as it is written. This can reduce maximum write throughput to however fast your disk can write, but should still be quite fast.

There are many configuration options to fine tune persistence if you need, but the defaults are very sensible. These options make it easy to setup redis as a safe, redundant place to store data. It is a real database.

Many Data Types

Memcached is limited to strings, but Redis is a data structure server that can serve up many different data types. It also provides the commands you need to make the most of those data types.

Strings (commands)

Simple text or binary values that can be up to 512MB in size. This is the only data type redis and memcached share, though memcached strings are limited to 1MB.

Redis gives you more tools for leveraging this datatype by offering commands for bitwise operations, bit-level manipulation, floating point increment/decrement support, range queries, and multi-key operations. Memcached doesn't support any of that.

Strings are useful for all sorts of use cases, which is why memcached is fairly useful with this data type alone.

Hashes (commands)

Hashes are sort of like a key value store within a key value store. They map between string fields and string values. Field->value maps using a hash are slightly more space efficient than key->value maps using regular strings.

Hashes are useful as a namespace, or when you want to logically group many keys. With a hash you can grab all the members efficiently, expire all the members together, delete all the members together, etc. Great for any use case where you have several key/value pairs that need to grouped.

One example use of a hash is for storing user profiles between applications. A redis hash stored with the user ID as the key will allow you to store as many bits of data about a user as needed while keeping them stored under a single key. The advantage of using a hash instead of serializing the profile into a string is that you can have different applications read/write different fields within the user profile without having to worry about one app overriding changes made by others (which can happen if you serialize stale data).

Lists (commands)

Redis lists are ordered collections of strings. They are optimized for inserting, reading, or removing values from the top or bottom (aka: left or right) of the list.

Redis provides many commands for leveraging lists, including commands to push/pop items, push/pop between lists, truncate lists, perform range queries, etc.

Lists make great durable, atomic, queues. These work great for job queues, logs, buffers, and many other use cases.

Sets (commands)

Sets are unordered collections of unique values. They are optimized to let you quickly check if a value is in the set, quickly add/remove values, and to measure overlap with other sets.

These are great for things like access control lists, unique visitor trackers, and many other things. Most programming languages have something similar (usually called a Set). This is like that, only distributed.

Redis provides several commands to manage sets. Obvious ones like adding, removing, and checking the set are present. So are less obvious commands like popping/reading a random item and commands for performing unions and intersections with other sets.

Sorted Sets (commands)

Sorted Sets are also collections of unique values. These ones, as the name implies, are ordered. They are ordered by a score, then lexicographically.

This data type is optimized for quick lookups by score. Getting the highest, lowest, or any range of values in between is extremely fast.

If you add users to a sorted set along with their high score, you have yourself a perfect leader-board. As new high scores come in, just add them to the set again with their high score and it will re-order your leader-board. Also great for keeping track of the last time users visited and who is active in your application.

Storing values with the same score causes them to be ordered lexicographically (think alphabetically). This can be useful for things like auto-complete features.

Many of the sorted set commands are similar to commands for sets, sometimes with an additional score parameter. Also included are commands for managing scores and querying by score.

Geo

Redis has several commands for storing, retrieving, and measuring geographic data. This includes radius queries and measuring distances between points.

Technically geographic data in redis is stored within sorted sets, so this isn't a truly separate data type. It is more of an extension on top of sorted sets.

Bitmap and HyperLogLog

Like geo, these aren't completely separate data types. These are commands that allow you to treat string data as if it's either a bitmap or a hyperloglog.

Bitmaps are what the bit-level operators I referenced under Strings are for. This data type was the basic building block for reddit's recent collaborative art project: r/Place.

HyperLogLog allows you to use a constant extremely small amount of space to count almost unlimited unique values with shocking accuracy. Using only ~16KB you could efficiently count the number of unique visitors to your site, even if that number is in the millions.

Transactions and Atomicity

Commands in redis are atomic, meaning you can be sure that as soon as you write a value to redis that value is visible to all clients connected to redis. There is no wait for that value to propagate. Technically memcached is atomic as well, but with redis adding all this functionality beyond memcached it is worth noting and somewhat impressive that all these additional data types and features are also atomic.

While not quite the same as transactions in relational databases, redis also has transactions that use "optimistic locking" (WATCH/MULTI/EXEC).

Pipelining

Redis provides a feature called 'pipelining'. If you have many redis commands you want to execute you can use pipelining to send them to redis all-at-once instead of one-at-a-time.

Normally when you execute a command to either redis or memcached, each command is a separate request/response cycle. With pipelining, redis can buffer several commands and execute them all at once, responding with all of the responses to all of your commands in a single reply.

This can allow you to achieve even greater throughput on bulk importing or other actions that involve lots of commands.

Pub/Sub

Redis has commands dedicated to pub/sub functionality, allowing redis to act as a high speed message broadcaster. This allows a single client to publish messages to many other clients connected to a channel.

Redis does pub/sub as well as almost any tool. Dedicated message brokers like RabbitMQ may have advantages in certain areas, but the fact that the same server can also give you persistent durable queues and other data structures your pub/sub workloads likely need, Redis will often prove to be the best and most simple tool for the job.

Lua Scripting

You can kind of think of lua scripts like redis's own SQL or stored procedures. It's both more and less than that, but the analogy mostly works.

Maybe you have complex calculations you want redis to perform. Maybe you can't afford to have your transactions roll back and need guarantees every step of a complex process will happen atomically. These problems and many more can be solved with lua scripting.

The entire script is executed atomically, so if you can fit your logic into a lua script you can often avoid messing with optimistic locking transactions.

Scaling

As mentioned above, redis includes built in support for clustering and is bundled with its own high availability tool called redis-sentinel.

Conclusion

Without hesitation I would recommend redis over memcached for any new projects, or existing projects that don't already use memcached.

The above may sound like I don't like memcached. On the contrary: it is a powerful, simple, stable, mature, and hardened tool. There are even some use cases where it's a little faster than redis. I love memcached. I just don't think it makes much sense for future development.

Redis does everything memcached does, often better. Any performance advantage for memcached is minor and workload specific. There are also workloads for which redis will be faster, and many more workloads that redis can do which memcached simply can't. The tiny performance differences seem minor in the face of the giant gulf in functionality and the fact that both tools are so fast and efficient they may very well be the last piece of your infrastructure you'll ever have to worry about scaling.

There is only one scenario where memcached makes more sense: where memcached is already in use as a cache. If you are already caching with memcached then keep using it, if it meets your needs. It is likely not worth the effort to move to redis and if you are going to use redis just for caching it may not offer enough benefit to be worth your time. If memcached isn't meeting your needs, then you should probably move to redis. This is true whether you need to scale beyond memcached or you need additional functionality.

You have to calculate the total of grades If it is SQL 2005 you can use CTE

    WITH Tot(Total) (
    SELECT COUNT(*) FROM table
    )
    SELECT Grade, COUNT(*) / Total * 100
--, CONVERT(VARCHAR, COUNT(*) / Total * 100) + '%'  -- With percentage sign
--, CONVERT(VARCHAR, ROUND(COUNT(*) / Total * 100, -2)) + '%'  -- With Round
    FROM table
    GROUP BY Grade

While Guffa's answer works in many situations, in some cases you may not want the left and/or right pieces of padding to be the parent of the center div. In these cases, you can use a block formatting context on the center and float the padding divs left and right. Here's the code

The HTML:

<div class="container">
    <div class="left"></div>
    <div class="right"></div>
    <div class="center"></div>
</div>

The CSS:

.container {
    width: 100px;
    height: 20px;
}

.left, .right {
    width: 20px;
    height: 100%;
    float: left;
    background: black;   
}

.right {
    float: right;
}

.center {
    overflow: auto;
    height: 100%;
    background: blue;
}

I feel that this element hierarchy is more natural when compared to nested nested divs, and better represents what's on the page. Because of this, borders, padding, and margin can be applied normally to all elements (ie: this 'naturality' goes beyond style and has ramifications).

Note that this only works on divs and other elements that share its 'fill 100% of the width by default' property. Inputs, tables, and possibly others will require you to wrap them in a container div and add a little more css to restore this quality. If you're unlucky enough to be in that situation, contact me and I'll dig up the css.

jsfiddle here: jsfiddle.net/RgdeQ

Enjoy!

To clarify how the shebang line works for windows, from the 3.7 Python doc:

• If the first line of a script file starts with #!, it is known as a “shebang” line. Linux and other Unix like operating systems have native support for such lines and they are commonly used on such systems to indicate how a script should be executed.
• The Python Launcher for Windows allows the same facilities to be used with Python scripts on Windows
• To allow shebang lines in Python scripts to be portable between Unix and Windows, the launcher supports a number of ‘virtual’ commands to specify which interpreter to use. The supported virtual commands are:
  • /usr/bin/env python
    • The /usr/bin/env form of shebang line has one further special property. Before looking for installed Python interpreters, this form will search the executable PATH for a Python executable. This corresponds to the behaviour of the Unix env program, which performs a PATH search.
  • /usr/bin/python
  • /usr/local/bin/python
  • python

use

textarea{
  visibility:hidden;
}

verse = "If you can keep your head when all about you\n Are losing theirs and blaming it on you,\nIf you can trust yourself when all men doubt you,\n But make allowance for their doubting too;\nIf you can wait and not be tired by waiting,\n Or being lied about, don’t deal in lies,\nOr being hated, don’t give way to hating,\n And yet don’t look too good, nor talk too wise:"

enter code here

print(verse)
#1. What is the length of the string variable verse?
verse_length = len(verse)
print("The length of verse is: {}".format(verse_length))
#2. What is the index of the first occurrence of the word 'and' in verse?
index = verse.find("and")
print("The index of the word 'and' in verse is {}".format(index))

That picture indeed shows that your 8081 is not in use. If suggestions above haven't helped, and your mobile device is connected to your computer via usb (and you have Android 5.0 (Lollipop) or above) you could try:

$ adb reconnect

This is not necessary in most cases, but just in case, let's reset your connection with your mobile and restart adb server. Finally:

$ adb reverse tcp:8081 tcp:8081

So, whenever your mobile device tries to access any port 8081 on itself it will be routed to the 8081 port on your PC.

Or, one could try

$ killall node

Hi @donaldhughes I'm new on it too, and I use to do this: 1 - Create a class to get my Connection String 2 - Call the connection string class in a Using

Look:

DapperConnection.cs

public class DapperConnection
{

    public IDbConnection DapperCon {
        get
        {
            return new SqlConnection(ConfigurationManager.ConnectionStrings["Default"].ToString());

        }
    }
}

DapperRepository.cs

  public class DapperRepository : DapperConnection
  {
       public IEnumerable<TBMobileDetails> ListAllMobile()
        {
            using (IDbConnection con = DapperCon )
            {
                con.Open();
                string query = "select * from Table";
                return con.Query<TableEntity>(query);
            }
        }
     }

And it works fine.

In perl 5.10, there's the close-to-magic ~~ operator:

sub invite_in {
    my $vampires = [ qw(Angel Darla Spike Drusilla) ];
    return ($_[0] ~~ $vampires) ? 0 : 1 ;
}

See here: http://dev.perl.org/perl5/news/2007/perl-5.10.0.html

This is one way (SQL2000)

SELECT * FROM
(
    SELECT TOP (@pageSize) * FROM
    (
        SELECT TOP (@pageNumber * @pageSize) *
        FROM tableName 
        ORDER BY columnName ASC
    ) AS t1 
    ORDER BY columnName DESC
) AS t2 
ORDER BY columnName ASC

and this is another way (SQL 2005)

;WITH results AS (
    SELECT 
        rowNo = ROW_NUMBER() OVER( ORDER BY columnName ASC )
        , *
    FROM tableName 
) 
SELECT * 
FROM results
WHERE rowNo between (@pageNumber-1)*@pageSize+1 and @pageNumber*@pageSize

if you are using Maven 2.0.8+, then it will be very simple, run mvndebug from the console, and connect to it via Remote Debug Java Application with port 8000.

The first arg that you give to grep needs to evaluate as true or false to indicate whether there was a match. So it should be:

# note that grep returns a list, so $matched needs to be in brackets to get the 
# actual value, otherwise $matched will just contain the number of matches
if (my ($matched) = grep $_ eq $match, @array) {
    print "found it: $matched\n";
}

If you need to match on a lot of different values, it might also be worth for you to consider putting the array data into a hash, since hashes allow you to do this efficiently without having to iterate through the list.

# convert array to a hash with the array elements as the hash keys and the values are simply 1
my %hash = map {$_ => 1} @array;

# check if the hash contains $match
if (defined $hash{$match}) {
    print "found it\n";
}

I did a test finding a case-insensitive match of a string. I have a Vector of 150,000 objects all with a String as one field and wanted to find the subset which matched a string. I tried three methods:

1. Convert all to lower case

   for (SongInformation song: songs) {
       if (song.artist.toLowerCase().indexOf(pattern.toLowercase() > -1) {
               ...
       }
   }
   

2. Use the String matches() method

   for (SongInformation song: songs) {
       if (song.artist.matches("(?i).*" + pattern + ".*")) {
       ...
       }
   }
   

3. Use regular expressions

   Pattern p = Pattern.compile(pattern, Pattern.CASE_INSENSITIVE);
   Matcher m = p.matcher("");
   for (SongInformation song: songs) {
       m.reset(song.artist);
       if (m.find()) {
       ...
       }
   }
   

Timing results are:

• No attempted match: 20 msecs

• To lower match: 182 msecs

• String matches: 278 msecs

• Regular expression: 65 msecs

The regular expression looks to be the fastest for this use case.

Answering this because I trapped myself with it by now knowing this and maybe it will be useful.

Keep in mind that you cant fetch results twice. You have to save fetch result into array, get row count by count($array), and output results with foreach. For example:

$query = "your_query_here";
$STH = $DBH->prepare($query);
$STH->execute();
$rows = $STH->fetchAll();
//all your results is in $rows array
$STH->setFetchMode(PDO::FETCH_ASSOC);           
if (count($rows) > 0) {             
    foreach ($rows as $row) {
        //output your rows
    }                       
}

Use java.text.SimpleDateFormat to convert minute into hours and minute

SimpleDateFormat sdf = new SimpleDateFormat("mm");

try {
    Date dt = sdf.parse("90");
    sdf = new SimpleDateFormat("HH:mm");
    System.out.println(sdf.format(dt));
} catch (ParseException e) {
    e.printStackTrace();
}

i got result from this in LibreOffice Calc :

=DATE(1970,1,1)+Column_id_here/60/60/24

In my case, it's caused by wrong configuration of the requested server's address.

The server address should be an FQDN (fully qualified domain name).

FQDN is always required by Kerberos.

I believe you just migrated from C++, Well in java you have to initialize a data type(other then primitive types and String is not a considered as a primitive type in java ) to use them as according to their specifications if you don't then its just like an empty reference variable (much like a pointer in the context of C++).

public class StringTest {
    public static void main(String[] args) {
        String[] errorSoon = new String[100];
        errorSoon[0] = "Error, why?";
        //another approach would be direct initialization
        String[] errorsoon = {"Error , why?"};   
    }
}

In short

• window.onload is not supported by IE 6-8
• document.onload is not supported by any modern browser (event is never fired)

window.onload   = () => console.log('window.onload works');   // fired
document.onload = () => console.log('document.onload works'); // not fired

Another approach may be writing special function to extract all elements values from one string by regular-expression:

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

public class Example {
    public static void main (String[] args){
        HashMap<String,Integer> hashMapStringInteger = createHashMapStringIntegerInOneStat("'one' => '1', 'two' => '2' , 'three'=>'3'  ");

        System.out.println(hashMapStringInteger); // {one=1, two=2, three=3}
    }

    private static HashMap<String, Integer> createHashMapStringIntegerInOneStat(String str) {
        HashMap<String, Integer> returnVar = new HashMap<String, Integer>();

        String currentStr = str;
        Pattern pattern1 = Pattern.compile("^\\s*'([^']*)'\\s*=\\s*>\\s*'([^']*)'\\s*,?\\s*(.*)$");

        // Parse all elements in the given string.
        boolean thereIsMore = true;
        while (thereIsMore){
            Matcher matcher = pattern1.matcher(currentStr);
            if (matcher.find()) {
                returnVar.put(matcher.group(1),Integer.valueOf(matcher.group(2)));
                currentStr = matcher.group(3);
            }
            else{
                thereIsMore = false;
            }
        }

        // Validate that all elements in the given string were parsed properly
        if (currentStr.length() > 0){
            System.out.println("WARNING: Problematic string format. given String: " + str);
        }

        return returnVar;
    }
}

I've seen 3 other fixes so far:

1. in .metadata/, rm .lock file
2. if 1) doesn't work, try end process javaw.exe etc. to exit the IDE
3. if 1)&2) doesn't work, try rm .log file in .metadata/, and double check .plugin/.
4. This always worked for me: relocate .metadata/, open and close eclipse, then overwrite .metadata back

The solution boils down to clean up the .metadata folder with correct contents

Try:

jQuery("#availability option:selected").val();

Or to get the text of the option, use text():

jQuery("#availability option:selected").text();

More Info:

• http://api.jquery.com/val/
• http://api.jquery.com/text/

Inspired by @Josef's answer:

const fileToBase64 = async (file) =>
  new Promise((resolve, reject) => {
    const reader = new FileReader()
    reader.readAsDataURL(file)
    reader.onload = () => resolve(reader.result)
    reader.onerror = (e) => reject(e)
  })

const file = event.srcElement.files[0];
const imageStr = await fileToBase64(file)

Be careful with that.

But you can use the rebase command

git rebase -i HEAD~2

A vi will open and all you have to do is delete the line with the commit. Also can read instructions that were shown in proper edition @ vi. A couple of things can be performed on this mode.

Use a secure URL for your initial connection, i.e. instead of "http://" use "https://". If the WebSocket transport is chosen, then Socket.IO should automatically use "wss://" (SSL) for the WebSocket connection too.

Update:

You can also try creating the connection using the 'secure' option:

var socket = io.connect('https://localhost', {secure: true});

Do .libPaths(), close every R runing, check in the first directory, remove the zoo package restart R and install zoo again. Of course you need to have sufficient rights.

Well, actually, React is not suitable for calling child methods from the parent. Some frameworks, like Cycle.js, allow easily access data both from parent and child, and react to it.

Also, there is a good chance you don't really need it. Consider calling it into existing component, it is much more independent solution. But sometimes you still need it, and then you have few choices:

• Pass method down, if it is a child (the easiest one, and it is one of the passed properties)
• add events library; in React ecosystem Flux approach is the most known, with Redux library. You separate all events into separated state and actions, and dispatch them from components
• if you need to use function from the child in a parent component, you can wrap in a third component, and clone parent with augmented props.

UPD: if you need to share some functionality which doesn't involve any state (like static functions in OOP), then there is no need to contain it inside components. Just declare it separately and invoke when need:

let counter = 0;
function handleInstantiate() {
   counter++;
}

constructor(props) {
   super(props);
   handleInstantiate();
}

If it happens when you try to install some package via composer just use this command COMPOSER_MEMORY_LIMIT=-1 composer require nameofpackage

Not sure what you table structure is like but see below.

public NamePriceModel[] AllProducts()
{
    try
    {
        using (UserDataDataContext db = new UserDataDataContext())
        {
            return db.mrobProducts
                .Where(x => x.Status == 1)
                .Select(x => new NamePriceModel { 
                    Name = x.Name, 
                    Id = x.Id, 
                    Price = x.Price
                })
                .OrderBy(x => x.Id)
                .ToArray();
         }
     }
     catch
     {
         return null;
     }
 }

This would return an array of type anonymous with the members you require.

Update:

Create a new class.

public class NamePriceModel 
{
    public string Name {get; set;}
    public decimal? Price {get; set;}
    public int Id {get; set;}
}

I've modified the query above to return this as well and you should change your method from returning string[] to returning NamePriceModel[].

According to the jQuery docs, calling toggle() without parameters will toggle visibility.

$('#play-pause').click(function(){
   $('#video-over').toggle();
});

http://jsfiddle.net/Q47ya/

You're comparing the message with the empty string using ==.

First, your comparison is wrong because the message will be null (and not the empty string).

Second, it's wrong because Objects must be compared with equals() and not with ==.

Third, it's wrong because you should avoid scriptlets in JSP, and use the JSP EL, the JSTL, and other custom tags instead:

<c:id test="${!empty message}">
    <c:out value="${message}"/>
</c:if>

file.lines with JFile package

Pseudo

var JFile=require('jfile');

var myF=new JFile("./data.txt");
myF.lines // ["first line","second line"] ....

Don't forget before :

npm install jfile --save

I had the same issue. I came up with a simple solution. Use fragment .replace instead of fragment .add. Replacing fragment doing the same thing as adding fragment and then removing it manually.

getFragmentManager().beginTransaction().replace(fragment).commit();

instead of

getFragmentManager().beginTransaction().add(fragment).commit();

An even simpler solution to the above:

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <color android:color="@color/semitransparent_white" />
    </item>
    <item>
        <color android:color="@color/transparent" />
    </item>
</selector>

Save that in the drawable folder and you're good to go.

Regain control of your console! Simply:

from __past__ import printf

where __past__.py contains:

import sys
def printf(fmt, *varargs):
    sys.stdout.write(fmt % varargs)

then:

>>> printf("Hello, world!\n")
Hello, world!
>>> printf("%d %d %d\n", 0, 1, 42)
0 1 42
>>> printf('a'); printf('b'); printf('c'); printf('\n')
abc
>>>

Bonus extra: If you don't like print >> f, ..., you can extending this caper to fprintf(f, ...).

Use event.key and modern JS!

No number codes anymore. You can use "Enter", "ArrowLeft", "r", or any key name directly, making your code far more readable.

NOTE: The old alternatives (.keyCode and .which) are Deprecated.

document.addEventListener("keypress", function onEvent(event) {
    if (event.key === "ArrowLeft") {
        // Move Left
    }
    else if (event.key === "Enter") {
        // Open Menu...
    }
});

Mozilla Docs

Supported Browsers

Simple using html like this downloads the file mentioned using static keyword

<a href="{% static 'bt.docx' %}" class="btn btn-secondary px-4 py-2 btn-sm">Download CV</a>

import nltk is Python syntax, and as such won't work in a shell script.

To test the version of nltk and scikit_learn, you can write a Python script and run it. Such a script may look like

import nltk
import sklearn

print('The nltk version is {}.'.format(nltk.__version__))
print('The scikit-learn version is {}.'.format(sklearn.__version__))

# The nltk version is 3.0.0.
# The scikit-learn version is 0.15.2.

Note that not all Python packages are guaranteed to have a __version__ attribute, so for some others it may fail, but for nltk and scikit-learn at least it will work.

jspdf does not work with css but it can work along with html2canvas. You can use jspdf along with html2canvas.

include these two files in script on your page :

<script type="text/javascript" src="html2canvas.js"></script>
  <script type="text/javascript" src="jspdf.min.js"></script>
  <script type="text/javascript">
  function genPDF()
  {
   html2canvas(document.body,{
   onrendered:function(canvas){

   var img=canvas.toDataURL("image/png");
   var doc = new jsPDF();
   doc.addImage(img,'JPEG',20,20);
   doc.save('test.pdf');
   }

   });

  }
  </script>

You need to download script files such as https://github.com/niklasvh/html2canvas/releases https://cdnjs.com/libraries/jspdf

make clickable button on page so that it will generate pdf and it will be seen same as that of original html page.

<a href="javascript:genPDF()">Download PDF</a>  

It will work perfectly.

Also, you can create your own outerHeight for HTML elements. I don't know if it works in IE, but it works in Chrome. Perhaps, you can enhance the code below using currentStyle, suggested in the answer above.

Object.defineProperty(Element.prototype, 'outerHeight', {
    'get': function(){
        var height = this.clientHeight;
        var computedStyle = window.getComputedStyle(this); 
        height += parseInt(computedStyle.marginTop, 10);
        height += parseInt(computedStyle.marginBottom, 10);
        height += parseInt(computedStyle.borderTopWidth, 10);
        height += parseInt(computedStyle.borderBottomWidth, 10);
        return height;
    }
});

This piece of code allow you to do something like this:

document.getElementById('foo').outerHeight

According to caniuse.com, getComputedStyle is supported by main browsers (IE, Chrome, Firefox).

In my case I had to map an entity to a View, which didn't have primary key. Moreover, I wasn't allowed to modify this View. Fortunately, this View had a column which was a unique string. My solution was to mark this column as a primary key:

[Key]
[DatabaseGenerated(DatabaseGeneratedOption.None)]
[StringLength(255)]
public string UserSID { get; set; }

Cheated EF. Worked perfectly, no one noticed... :)

I like to use the following:

1. git status
2. git add --all
3. git commit -am "message goes here about the change"
4. git pull <origin master>
5. git push <origin master>

• nchar is fixed-length and can hold unicode characters. it uses two bytes storage per character.

• varchar is of variable length and cannot hold unicode characters. it uses one byte storage per character.

tl;dr

The other Answers are outmoded as of Java 8.

Instant                           // Represent a moment in UTC. 
.parse( "2013-09-29T18:46:19Z" )  // Parse text in standard ISO 8601 format where the `Z` means UTC, pronounces “Zulu”.
.atZone(                          // Adjust from UTC to a time zone. 
    ZoneId.of( "Asia/Kolkata" )
)                                 // Returns a `ZonedDateTime` object. 

ISO 8601

Your string format happens to comply with the ISO 8601 standard. This standard defines sensible formats for representing various date-time values as text.

java.time

The old java.util.Date/.Calendar and java.text.SimpleDateFormat classes have been supplanted by the java.time framework built into Java 8 and later. See Tutorial. Avoid the old classes as they have proven to be poorly designed, confusing, and troublesome.

Part of the poor design in the old classes has bitten you, where the toString method applies the JVM's current default time zone when generating a text representation of the date-time value that is actually in UTC (GMT); well-intentioned but confusing.

The java.time classes use ISO 8601 formats by default when parsing/generating textual representations of date-time values. So no need to specify a parsing pattern.

An Instant is a moment on the timeline in UTC.

Instant instant = Instant.parse( "2013-09-29T18:46:19Z" );

You can apply a time zone as needed to produce a ZonedDateTime object.

ZoneId zoneId = ZoneId.of( "America/Montreal" );
ZonedDateTime zdt = instant.atZone( zoneId );

There is a good polyfill for that: louisremi/background-size-polyfill

To quote the documentation:

Upload backgroundsize.min.htc to your website, along with the .htaccess that will send the mime-type required by IE (Apache only — it's built in nginx, node and IIS).

Everywhere you use background-size in your CSS, add a reference to this file.

.selector { 
    background-size: cover;
    /* The url is relative to the document, not to the css file! */
    /* Prefer absolute urls to avoid confusion. */
    -ms-behavior: url(/backgroundsize.min.htc);
}

There is no way to get the memory address of a value in Python 2.7 in general. In Jython or PyPy, the implementation doesn't even know your value's address (and there's not even a guarantee that it will stay in the same place—e.g., the garbage collector is allowed to move it around if it wants).

However, if you only care about CPython, id is already returning the address. If the only issue is how to format that integer in a certain way… it's the same as formatting any integer:

>>> hex(33)
0x21
>>> '{:#010x}'.format(33) # 32-bit
0x00000021
>>> '{:#018x}'.format(33) # 64-bit
0x0000000000000021

… and so on.

However, there's almost never a good reason for this. If you actually need the address of an object, it's presumably to pass it to ctypes or similar, in which case you should use ctypes.addressof or similar.

You can use pkill <process_name> in a unix system to kill process by name.

Then the python code will be:

>>> import os
>>> process_name=iChat
>>> os.system('pkill '+process_name)

Ok, try this:

Get the image with the transparent circle - http://i39.tinypic.com/15s97vd.png Put that image in a html element and change that element's background color via css. This way you get the logo with the circle in the color defined in the stylesheet.

The html

<div class="badassColorChangingLogo">
    <img src="http://i39.tinypic.com/15s97vd.png" /> 
    Or download the image and change the path to the downloaded image in your machine
</div>

The css

div.badassColorChangingLogo{
    background-color:white;
}
div.badassColorChangingLogo:hover{
    background-color:blue;
}

Keep in mind that this wont work on non-alpha capable browsers like ie6, and ie7. for ie you can use a js fix. Google ddbelated png fix and you can get the script.

Follow the below url to setup signed commit https://help.github.com/en/articles/telling-git-about-your-signing-key

if still getting gpg failed to sign the data fatal: failed to write commit object

this is not issue with git ,this is with GPG follow below steps

1.gpg --version

2. echo "test" | gpg --clearsign

if it is showing:

gpg: signing failed: Inappropriate ioctl for device
gpg: [stdin]: clear-sign failed: Inappropriate ioctl for device

3. then use export GPG_TTY=$(tty)

4.then again try echo "test" | gpg --clearsign in which PGP signature is got.

5. git config -l | grep gpg

gpg.program=gpg commit.gpgsign=true

6.apply git commit -S -m "commitMsz"

You can use "yes" command also. The syntax is fairly simple:

#yes >> myfile

Press "Ctrl + C" to stop this, else it will eat up all your space available.

To clean this file run:

#>myfile

will clean this file.

Hashable = capable of being hashed.

Ok, what is hashing? A hashing function is a function which takes an object, say a string such as “Python,” and returns a fixed-size code. For simplicity, assume the return value is an integer.

When I run hash(‘Python’) in Python 3, I get 5952713340227947791 as the result. Different versions of Python are free to change the underlying hash function, so you will likely get a different value. The important thing is that no matter now many times I run hash(‘Python’), I’ll always get the same result with the same version of Python.

But hash(‘Java’) returns 1753925553814008565. So if the object I am hashing changes, so does the result. On the other hand, if the object I am hashing does not change, then the result stays the same.

Why does this matter?

Well, Python dictionaries, for example, require the keys to be immutable. That is, keys must be objects which do not change. Strings are immutable in Python, as are the other basic types (int, float, bool). Tuples and frozensets are also immutable. Lists, on the other hand, are not immutable (i.e., they are mutable) because you can change them. Similarly, dicts are mutable.

So when we say something is hashable, we mean it is immutable. If I try to pass a mutable type to the hash() function, it will fail:

>>> hash('Python')
1687380313081734297
>>> hash('Java')
1753925553814008565
>>>
>>> hash([1, 2])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'list'
>>> hash({1, 2})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'set'
>>> hash({1 : 2})
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: unhashable type: 'dict'
>>>
>>> hash(frozenset({1, 2}))
-1834016341293975159
>>> hash((1, 2))
3713081631934410656

Try this (i use background and background-color in this example):

var ClickEventType = ((document.ontouchstart !== null) ? 'click' : 'touchstart');

if (ClickEventType == 'touchstart') {
            $('a').each(function() { // save original..
                var back_color = $(this).css('background-color');
                var background = $(this).css('background');
                $(this).attr('data-back_color', back_color);
                $(this).attr('data-background', background);
            });

            $('a').on('touchend', function(e) { // overwrite with original style..
                var background = $(this).attr('data-background');
                var back_color = $(this).attr('data-back_color');
                if (back_color != undefined) {
                    $(this).css({'background-color': back_color});
                }
                if (background != undefined) {
                    $(this).css({'background': background});
                }
            }).on('touchstart', function(e) { // clear added stlye="" elements..
                $(this).css({'background': '', 'background-color': ''});
            });
}

css:

a {
    -webkit-touch-callout: none;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

Each elapsed event will fire in the same thread unless a previous Elapsed is still running.

So it handles the collision for you

try putting this in a console

static void Main(string[] args)
{
    Debug.WriteLine(Thread.CurrentThread.ManagedThreadId);
    var timer = new Timer(1000);
    timer.Elapsed += timer_Elapsed;
    timer.Start();
    Console.ReadLine();
}

static void timer_Elapsed(object sender, ElapsedEventArgs e)
{
    Thread.Sleep(2000);
    Debug.WriteLine(Thread.CurrentThread.ManagedThreadId);
}

you will get something like this

10
6
12
6
12

where 10 is the calling thread and 6 and 12 are firing from the bg elapsed event. If you remove the Thread.Sleep(2000); you will get something like this

10
6
6
6
6

Since there are no collisions.

But this still leaves u with a problem. if u are firing the event every 5 seconds and it takes 10 seconds to edit u need some locking to skip some edits.

In my opinion the best approach to achieve this by using the filter method as it's meaningless to return in a forEach block; for an example on your snippet:

// Fetch all objects in SomeElements collection
var elementsCollection = SomeElements.find();
elementsCollection
.filter(function(element) {
  return element.shouldBeProcessed;
})
.forEach(function(element){
  doSomeLengthyOperation();
});

This will narrow down your elementsCollection and just keep the filtred elements that should be processed.

Peer dependency warnings, more often than not, can be ignored. The only time you will want to take action is if the peer dependency is missing entirely, or if the version of a peer dependency is higher than the version you have installed.

Let's take this warning as an example:

npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.

With Angular, you would like the versions you are using to be consistent across all packages. If there are any incompatible versions, change the versions in your package.json, and run npm install so they are all synced up. I tend to keep my versions for Angular at the latest version, but you will need to make sure your versions are consistent for whatever version of Angular you require (which may not be the most recent).

In a situation like this:

npm WARN [email protected] requires a peer of @angular/core@^2.4.0 || ^4.0.0 but none is installed. You must install peer dependencies yourself.

If you are working with a version of Angular that is higher than 4.0.0, then you will likely have no issues. Nothing to do about this one then. If you are using an Angular version under 2.4.0, then you need to bring your version up. Update the package.json, and run npm install, or run npm install for the specific version you need. Like this:

npm install @angular/[email protected] --save

You can leave out the --save if you are running npm 5.0.0 or higher, that version saves the package in the dependencies section of the package.json automatically.

In this situation:

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules\fsevents): npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

You are running Windows, and fsevent requires OSX. This warning can be ignored.

Hope this helps, and have fun learning Angular!

One more problem to be aware of, is that toFixed() can produce unnecessary zeros at the end of the number. For example:

var x=(23-7.37)
x
15.629999999999999
x.toFixed(6)
"15.630000"

The idea is to clean up the output using a RegExp:

function humanize(x){
  return x.toFixed(6).replace(/\.?0*$/,'');
}

The RegExp matches the trailing zeros (and optionally the decimal point) to make sure it looks good for integers as well.

humanize(23-7.37)
"15.63"
humanize(1200)
"1200"
humanize(1200.03)
"1200.03"
humanize(3/4)
"0.75"
humanize(4/3)
"1.333333"

"Segmentation fault (core dumped)" is the string that Linux prints when a program exits with a SIGSEGV signal and you have core creation enabled. This means some program has crashed.

If you're actually getting this error from running Python, this means the Python interpreter has crashed. There are only a few reasons this can happen:

1. You're using a third-party extension module written in C, and that extension module has crashed.

2. You're (directly or indirectly) using the built-in module ctypes, and calling external code that crashes.

3. There's something wrong with your Python installation.

4. You've discovered a bug in Python that you should report.

The first is by far the most common. If your q is an instance of some object from some third-party extension module, you may want to look at the documentation.

Often, when C modules crash, it's because you're doing something which is invalid, or at least uncommon and untested. But whether it's your "fault" in that sense or not - that doesn't matter. The module should raise a Python exception that you can debug, instead of crashing. So, you should probably report a bug to whoever wrote the extension. But meanwhile, rather than waiting 6 months for the bug to be fixed and a new version to come out, you need to figure out what you did that triggered the crash, and whether there's some different way to do what you want. Or switch to a different library.

On the other hand, since you're reading and printing out data from somewhere else, it's possible that your Python interpreter just read the line "Segmentation fault (core dumped)" and faithfully printed what it read. In that case, some other program upstream presumably crashed. (It's even possible that nobody crashed—if you fetched this page from the web and printed it out, you'd get that same line, right?) In your case, based on your comment, it's probably the Java program that crashed.

If you're not sure which case it is (and don't want to learn how to do process management, core-file inspection, or C-level debugging today), there's an easy way to test: After print line add a line saying print "And I'm OK". If you see that after the Segmentation fault line, then Python didn't crash, someone else did. If you don't see it, then it's probably Python that's crashed.

For Eclipse Neon

To Increase Ctrl +

To reduce Ctrl -

FOR MySQL

CREATE TABLE newtable LIKE oldtable ; 
INSERT newtable SELECT * FROM oldtable ;

FOR MSSQL Use MyDatabase:

Select * into newCustomersTable  from oldCustomersTable;

This SQL is used for copying tables, here the contents of oldCustomersTable will be copied to newCustomersTable.
Make sure the newCustomersTable does not exist in the database.

Use %0A (URL encoding) instead of \n (C encoding).

Character arrays (char[]) can be cleared after use by setting each character to zero and Strings not. If someone can somehow see the memory image, they can see a password in plain text if Strings are used, but if char[] is used, after purging data with 0's, the password is secure.

Like this:

my_function (null, options) // for options only
my_function (content) // for content only
my_function (content, options) // for both

For python version >= 3.6 (see PEP 498)

s1='albha'
s2='beta'

f'{s1}{s2:>10}'

#output
'albha      beta'

apparently on sql server 2008 r2 64bit, with long running query from IIS the kill spid doesn't seem to work, the query just gets restarted again and again. and it seems to be reusing the spid's. the query is causing sql server to take like 35% cpu constantly and hang the website. I'm guessing bc/ it can't respond to other queries for logging in

Use the steps given in this link. It worked for me.

Step - 1 Right click on your project in Eclipse

Step - 2 Click Properties

Step - 3 Select Maven in the left hand side list.

Step - 4 You will notice "pom.xml" in the Active Maven Profiles text box on the right hand side. Clear it and click Apply.

Step - 5 Run As -> Maven clean -> Maven Install

Hope it helps!

Invoke mysql with the -N (the alias for -N is --skip-column-names) option:

mysql -N ...
use testdb;
select * from names;

+------+-------+
|    1 | pete  |
|    2 | john  |
|    3 | mike  |
+------+-------+
3 rows in set (0.00 sec)

Credit to ErichBSchulz for pointing out the -N alias.

To remove the grid (the vertical and horizontal lines) around the results use -s (--silent). Columns are separated with a TAB character.

mysql -s ...
use testdb;
select * from names;

id  name
1   pete
2   john
3   mike

To output the data with no headers and no grid just use both -s and -N.

mysql -sN ...

Instead of converting the class to a function, an easy step would be to create a function to include the jsx for the component which uses the 'classes', in your case the <container></container> and then call this function inside the return of the class render() as a tag. This way you are moving out the hook to a function from the class. It worked perfectly for me. In my case it was a <table> which i moved to a function- TableStmt outside and called this function inside the render as <TableStmt/>

Both are used to count elements in a array. sizeof() function is an alias of count() function used in PHP. However, count() function is faster and butter than sizeof().

Thanks RedFilter for providing excellent solution to the bugging issue of sorting nullable datetime field.

I am using SQL Server database for my project.

Changing the datetime null value to '1' does solves the problem of sorting for datetime datatype column. However if we have column with other than datetime datatype then it fails to handle.

To handle a varchar column sort, I tried using 'ZZZZZZZ' as I knew the column does not have values beginning with 'Z'. It worked as expected.

On the same lines, I used max values +1 for int and other data types to get the sort as expected. This also gave me the results as were required.

However, it would always be ideal to get something easier in the database engine itself that could do something like:

Order by Col1 Asc Nulls Last, Col2 Asc Nulls First 

As mentioned in the answer provided by a_horse_with_no_name.

Here, if you are converting string into byte[].There is a utility code :

    String[] str = result.replaceAll("\\[", "").replaceAll("\\]","").split(", ");
    byte[] dataCopy = new byte[str.length] ;
    int i=0;
    for(String s:str ) {
        dataCopy[i]=Byte.valueOf(s);
        i++;
    }
    return dataCopy;

To get 'dataX = urllib.urlopen(url).read()' working in python3 (this would have been correct for python2) you must just change 2 little things.

1: The urllib statement itself (add the .request in the middle):

dataX = urllib.request.urlopen(url).read()

2: The import statement preceding it (change from 'import urlib' to:

import urllib.request

And it should work in python3 :)

Add !important rule to display: table of your .v-center class.

.v-center {
    display:table !important;
    border:2px solid gray;
    height:300px;
}

Your display property is being overridden by bootstrap to display: block.

Example

I believe telnet 74.255.12.25 8089 . Why don't u try both

Here i am posting the answer just for reference which may become useful.

<!DOCTYPE html>
<html>
<head>
<script>
function show()
{
     var InvForm = document.forms.form;
     var SelBranchVal = "";
     var x = 0;
     for (x=0;x<InvForm.kb.length;x++)
         {
            if(InvForm.kb[x].selected)
            {
             //alert(InvForm.kb[x].value);
             SelBranchVal = InvForm.kb[x].value + "," + SelBranchVal ;
            }
         }
         alert(SelBranchVal);
}
</script>
</head>
<body>
<form name="form">
<select name="kb" id="kb" onclick="show();" multiple>
<option value="India">India</option>
<option selected="selected" value="US">US</option>
<option value="UK">UK</option>
<option value="Japan">Japan</option>
</select>
<!--input type="submit" name="cmdShow" value="Customize Fields"
 onclick="show();" id="cmdShow" /-->
</form>
</body>
</html>

I was able to solve similar Warning: session_start(): Cannot send session cache limiter - headers already sent by just removing a space in front of the <?php tag.

It worked.

The other answers so far create new commits that undo what is in older commits. It is possible to go back and "change history" as it were, but this can be a bit dangerous. You should only do this if the commit you're changing has not been pushed to other repositories.

The command you're looking for is git rebase --interactive

If you want to change HEAD~3, the command you want to issue is git rebase --interactive HEAD~4. This will open a text editor and allow you to specify which commits you want to change.

Practice on a different repository before you try this with something important. The man pages should give you all the rest of the information you need.

For Angular developer:

When I need to use agm-direction package, the console shows that "you have to have a credential key first, please go to here", but I already have one so I can view the google map.

Aftet a while, I found the only thing you need to do is go to Direction API and enable it, then wait for about 10s, you are good to go. The whole thing sums up that the console log didn't tell what API is needed exactly.

Use mvn -N versions:update-child-modules to update child pom`s version

https://www.mojohaus.org/versions-maven-plugin/examples/update-child-modules.html

You'll want to use a udf as below

from pyspark.sql.types import IntegerType
from pyspark.sql.functions import udf

def func(fruit1, fruit2):
    if fruit1 == None or fruit2 == None:
        return 3
    if fruit1 == fruit2:
        return 1
    return 0

func_udf = udf(func, IntegerType())
df = df.withColumn('new_column',func_udf(df['fruit1'], df['fruit2']))

You can use SHOW OPEN TABLES to show each table's lock status. More details on the command's doc page are here.

var consolidatedChildren =
    from c in children
    group c by new
    {
        c.School,
        c.Friend,
        c.FavoriteColor,
    } into gcs
    select new ConsolidatedChild()
    {
        School = gcs.Key.School,
        Friend = gcs.Key.Friend,
        FavoriteColor = gcs.Key.FavoriteColor,
        Children = gcs.ToList(),
    };

var consolidatedChildren =
    children
        .GroupBy(c => new
        {
            c.School,
            c.Friend,
            c.FavoriteColor,
        })
        .Select(gcs => new ConsolidatedChild()
        {
            School = gcs.Key.School,
            Friend = gcs.Key.Friend,
            FavoriteColor = gcs.Key.FavoriteColor,
            Children = gcs.ToList(),
        });

Unfortunately if you're looking to apply UIPopoverController in iOS9, you'll get a deprecated class warning. Instead you need to set your desired view's UIModalPresentationPopover property to achieve the same result.

Popover

In a horizontally regular environment, a presentation style where the content is displayed in a popover view. The background content is dimmed and taps outside the popover cause the popover to be dismissed. If you do not want taps to dismiss the popover, you can assign one or more views to the passthroughViews property of the associated UIPopoverPresentationController object, which you can get from the popoverPresentationController property.

In a horizontally compact environment, this option behaves the same as UIModalPresentationFullScreen.

Available in iOS 8.0 and later.

Reference: https://developer.apple.com/documentation/uikit/uiviewcontroller/1621355-modalpresentationstyle

Force popen to not continue until all output is read by doing:

os.popen(command).read()

What database are you on? With MS SQL Server, it's a database-wide setting, or you can over-ride it per-query with the COLLATE keyword.

How about creating a new list and adding elements you want to that new list. You cannot remove elements while iterating through a list

The <context:annotation-config> tag tells Spring to scan the codebase for automatically resolving dependency requirements of the classes containing @Autowired annotation.

Spring 2.5 also adds support for JSR-250 annotations such as @Resource, @PostConstruct, and @PreDestroy.Use of these annotations also requires that certain BeanPostProcessors be registered within the Spring container. As always, these can be registered as individual bean definitions, but they can also be implicitly registered by including <context:annotation-config> tag in spring configuration.

Taken from Spring documentation of Annotation Based Configuration

Spring provides the capability of automatically detecting 'stereotyped' classes and registering corresponding BeanDefinitions with the ApplicationContext.

According to javadoc of org.springframework.stereotype:

Stereotypes are Annotations denoting the roles of types or methods in the overall architecture (at a conceptual, rather than implementation, level). Example: @Controller @Service @Repository etc. These are intended for use by tools and aspects (making an ideal target for pointcuts).

To autodetect such 'stereotype' classes, <context:component-scan> tag is required.

The <context:component-scan> tag also tells Spring to scan the code for injectable beans under the package (and all its subpackages) specified.

Old question but I have a much better way of doing this. Rather than using rect() use polygon. This allows you to keep everything in plot without using points. Also you don't have to mess with par at all. If you want to keep things automated make the coordinates of polygon a function of your data.

plot.new()
polygon(c(-min(df[,1])^2,-min(df[,1])^2,max(df[,1])^2,max(df[,1])^2),c(-min(df[,2])^2,max(df[,2])^2,max(df[,2])^2,-min(df[,2])^2), col="grey")
par(new=T)
plot(df)

As everyone said above

var str = "foo"
str += " bar"
console.log(str) //will now give you "foo bar"

Check this out as well https://www.sitepoint.com/shorthand-javascript-techniques/

One possible explanation is a database trigger that fires for each DROP TABLE statement. To find the trigger, query the _TRIGGERS dictionary views:

select * from all_triggers
where trigger_type in ('AFTER EVENT', 'BEFORE EVENT')

disable any suspicious trigger with

   alter trigger <trigger_name> disable;

and try re-running your DROP TABLE statement

You can add the single line of code in Android Mainfest.xml under activity tag

 <activity
        android:name="com.sams.MainActivity"
        android:windowSoftInputMode="stateVisible" >
 </activity>

this may helps you.

Although I am very late to this but after seeing some legitimate questions for those who wanted to use INSERT-SELECT query with GROUP BY clause, I came up with the work around for this.

Taking further the answer of Marcus Adams and accounting GROUP BY in it, this is how I would solve the problem by using Subqueries in the FROM Clause

INSERT INTO lee(exp_id, created_by, location, animal, starttime, endtime, entct, 
                inact, inadur, inadist, 
                smlct, smldur, smldist, 
                larct, lardur, lardist, 
                emptyct, emptydur)
SELECT sb.id, uid, sb.location, sb.animal, sb.starttime, sb.endtime, sb.entct, 
       sb.inact, sb.inadur, sb.inadist, 
       sb.smlct, sb.smldur, sb.smldist, 
       sb.larct, sb.lardur, sb.lardist, 
       sb.emptyct, sb.emptydur
FROM
(SELECT id, uid, location, animal, starttime, endtime, entct, 
       inact, inadur, inadist, 
       smlct, smldur, smldist, 
       larct, lardur, lardist, 
       emptyct, emptydur 
FROM tmp WHERE uid=x
GROUP BY location) as sb
ON DUPLICATE KEY UPDATE entct=sb.entct, inact=sb.inact, ...

http://www.kanzaki.com/docs/ical/ has a slightly more readable version of the older spec. It helps as a starting point - many things are still the same.

Also on my site, I have

1. Some lists of useful resources (see sidebar bottom right) on
   • ical Spec RFC 5545
   • ical Testing Resources
2. Some notes recorded on my journey working with .ics over the last few years. In particular, you may find this repeating events 'cheatsheet' to be useful.

.ics areas that need careful handling:

• 'all day' events
• types of dates (timezone, UTC, or local 'floating') - nb to understand distinction
• interoperability of recurrence rules

Thanks! @steovi for this solution.

I have added support to ES6 version and changed from unescape to dataURI(unescape is deprecated).

converterDataURItoBlob(dataURI) {
    let byteString;
    let mimeString;
    let ia;

    if (dataURI.split(',')[0].indexOf('base64') >= 0) {
      byteString = atob(dataURI.split(',')[1]);
    } else {
      byteString = encodeURI(dataURI.split(',')[1]);
    }
    // separate out the mime component
    mimeString = dataURI.split(',')[0].split(':')[1].split(';')[0];

    // write the bytes of the string to a typed array
    ia = new Uint8Array(byteString.length);
    for (var i = 0; i < byteString.length; i++) {
      ia[i] = byteString.charCodeAt(i);
    }
    return new Blob([ia], {type:mimeString});
}

I've written a library that helps do precisely this. It allows search by object simply by initializing only the fields you want to filter by: https://github.com/kg6zvp/GenericEntityEJB

In SQL Server 2008 you can use

http://www.sommarskog.se/share_data.html#tableparam

or else simple and same as common execution

CREATE PROCEDURE OrderSummary @MaxQuantity INT OUTPUT AS

SELECT Ord.EmployeeID, SummSales = SUM(OrDet.UnitPrice * OrDet.Quantity)
FROM Orders AS Ord
     JOIN [Order Details] AS OrDet ON (Ord.OrderID = OrDet.OrderID)
GROUP BY Ord.EmployeeID
ORDER BY Ord.EmployeeID

SELECT @MaxQuantity = MAX(Quantity) FROM [Order Details]

RETURN (SELECT SUM(Quantity) FROM [Order Details])
GO

I hopes its help to you

This was a long time ago, so not sure if this is still needed, but you could use @@ROWCOUNT variable to see how many rows were affected with the previous sql statement.

This is helpful when for example you construct a dynamic Update statement and run it with exec. @@ROWCOUNT would show how many rows were updated.

Here is the definition

As Umesh Patil answer have comment say that there is problem. I try to edit answer and get reject. And get suggest to post new answer. This code should solve problem they have (Shashi Roy, Gaven, John Higgins).

<html> 
<head>  
<script type="text/javascript">
function CheckColors(val){
 var element=document.getElementById('othercolor');
 if(val=='others')
   element.style.display='block';
 else  
   element.style.display='none';
}

</script> 
</head>
<body>
  <select name="color" onchange='CheckColors(this.value);'> 
    <option>pick a color</option>  
    <option value="red">RED</option>
    <option value="blue">BLUE</option>
    <option value="others">others</option>
  </select>
<input type="text" name="othercolor" id="othercolor" style='display:none;'/>
</body>
</html>

I lost somehow my temporary notepad++ files, they weren't showing in tabs. So I did some search in appdata folder, and I found all my temporary files there. It seems that they are stored there for a long time.

C:\Users\USER\AppData\Roaming\Notepad++\backup

or

%AppData%\Notepad++\backup

The above answer by pl_rock is correct, the only thing I would add is to expect the ARG inside the Dockerfile if not you won't have access to it. So if you are doing

docker build -t essearch/ess-elasticsearch:1.7.6 --build-arg number_of_shards=5 --build-arg number_of_replicas=2 --no-cache .

Then inside the Dockerfile you should add

ARG number_of_replicas
ARG number_of_shards

I was running into this problem, so I hope I help someone (myself) in the future.

For anyone who, like me, reads this because they need to update a giant legacy project to 5.6: as the answers here point out, there is no quick fix: you really do need to find each occurrence of the problem manually, and fix it.

The most convenient way I found to find all problematic lines in a project (short of using a full-blown static code analyzer, which is very accurate but I don't know any that take you to the correct position in the editor right away) was using Visual Studio Code, which has a nice PHP linter built in, and its search feature which allows searching by Regex. (Of course, you can use any IDE/Code editor for this that does PHP linting and Regex searches.)

Using this regex:

^(?!.*function).*(\&\$)

it is possible to search project-wide for the occurrence of &$ only in lines that are not a function definition.

This still turns up a lot of false positives, but it does make the job easier.

VSCode's search results browser makes walking through and finding the offending lines super easy: you just click through each result, and look out for those that the linter underlines red. Those you need to fix.

Try this -

<table align="center" style="margin: 0px auto;"></table>

For linux:

$ strace sqlplus -L scott/tiger@orcl 2>&1| grep -i 'open.*tnsnames.ora'

shows something like this:

open("/opt/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora",O_RDONLY)=7

Changing to

$ strace sqlplus -L scott/tiger@orcl 2>&1| grep -i 'tnsnames.ora'

will show all the file paths that are failing.

public enum Tax {

NONE(1), SALES(2), IMPORT(3);

private final int value;
    private Tax(int value) {
        this.value = value;
    }

    public String toString() {
        return Integer.toString(value);
    }
}

class Test {
    System.out.println(Tax.NONE);    //Just an example.
}

You can see value inside [object Object] like this

Alert.alert(  JSON.stringify(userDate)  );

Try like this

    realm.write(() => {
       const userFormData = realm.create('User',{
       user_email: value.username,
       user_password: value.password,
      });
     });

      const userDate = realm.objects('User').filtered('user_email == $0', value.username.toString(), );
      Alert.alert(  JSON.stringify(userDate)  );

reference

https://off.tokyo/blog/react-native-object-object/

There is a library for this BarCode PHP. You just need to include a few files:

require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');

You can generate many types of barcodes, namely 1D or 2D. Add the required library:

require_once('class/BCGcode39.barcode.php');

Generate the colours:

// The arguments are R, G, and B for color.
$colorFront = new BCGColor(0, 0, 0);
$colorBack = new BCGColor(255, 255, 255);

After you have added all the codes, you will get this way:

Example

Since several have asked for an example here is what I was able to do to get it done

require_once('class/BCGFontFile.php');
require_once('class/BCGColor.php');
require_once('class/BCGDrawing.php');

require_once('class/BCGcode128.barcode.php');

header('Content-Type: image/png');

$color_white = new BCGColor(255, 255, 255);

$code = new BCGcode128();
$code->parse('HELLO');

$drawing = new BCGDrawing('', $color_white);
$drawing->setBarcode($code);

$drawing->draw();
$drawing->finish(BCGDrawing::IMG_FORMAT_PNG);

If you want to actually create the image file so you can save it then change

$drawing = new BCGDrawing('', $color_white);

to

$drawing = new BCGDrawing('image.png', $color_white);

You can do the following:

class User(object):
    fullName = "John Doe"

    def __init__(self, name):
        self.SName = name

    def print_names(self):
        print "Names: full name: '%s', name: '%s'" % (self.fullName, self.SName)

user = User('Test Name')

user.fullName # "John Doe"
user.SName # 'Test Name'
user.print_names() # will print you Names: full name: 'John Doe', name: 'Test Name'

E.g any object attributes could be retrieved using istance.

I think the best way is by using TableAdapters rather than using Commands objects, its Update method sends all changes mades (Updates,Inserts and Deletes) inside a Dataset or DataTable straight TO the database. Usually when using a DataGridView you bind to a BindingSource which lets you interact with a DataSource such as Datatables or Datasets.

If you work like this, then on your bounded DataGridView you can just do:

this.customersBindingSource.EndEdit();
this.myTableAdapter.Update(this.myDataSet.Customers);

The 'customersBindingSource' is the DataSource of the DataGridView.

The adapter's Update method will update a single data table and execute the correct command (INSERT, UPDATE, or DELETE) based on the RowState of each data row in the table.

From: https://msdn.microsoft.com/en-us/library/ms171933.aspx

So any changes made inside the DatagridView will be reflected on the Database when using the Update method.

More about TableAdapters: https://msdn.microsoft.com/en-us/library/bz9tthwx.aspx

Jean-François Corbett's answer is perfect. To be exhaustive I would just like to add that with some restrictons you could also use UsedRange.Columns.Count or UsedRange.Rows.Count.
The problem is that UsedRange is not always updated when deleting rows/columns (at least until you reopen the workbook).

I found that:

git log --reverse

shows commits from start.

The average function you can do is:

const getAverage = (arr) => arr.reduce((p, c) => p + c, 0) / arr.length

Also, I suggest that use the popoular open source tool, eg. Lodash:

const _ = require('lodash')
const getAverage = (arr) => _.chain(arr)
 .sum()
 .divide(arr.length)
 .round(1)
 .value()

run ng version

then simply check the version of angular core package.

@angular/cli: 1.2.6
node: 8.11.1
os: win32 x64
@angular/animations: 4.3.2
@angular/common: 4.3.2
@angular/compiler: 4.3.2
**@angular/core: 4.3.2**
@angular/forms: 4.3.2

Make sure USB debugging on your phone is turned on. ADB kill-server and ADB start-server is not the problem.

C:\Documents and Settings\Administrator> adb nodaemon server

 - cannot bind 'tcp:5037'

C:\Documents and Settings\Administrator> netstat -aon | findstr "5037"

 - TCP 127.0.0.1:1130 127.0.0.1:5037 TIME_WAIT 0
 - TCP 127.0.0.1:1269 127.0.0.1:5037 TIME_WAIT 0
 - TCP 127.0.0.1:5037 0.0.0.0:0 LISTENING 3088
 - TCP 127.0.0.1:5037 127.0.0.1:1128 TIME_WAIT 0
 - TCP 127.0.0.1:5037 127.0.0.1:1129 TIME_WAIT 0
 - TCP 127.0.0.1:5037 127.0.0.1:1270 TIME_WAIT 0

C:\Documents and Settings\Administrator>tasklist -fi "pid eq 3088"

 - Image name PID session name session # memory usage

========================= ====== ================ ======== ============

 - adb.exe 3088 Console 0 3,816 K

C:\Documents and Settings\Administrator>taskkill /f /pid 3088

 - Success: terminate the PID for the process of 3,088.

C:\Documents and Settings\Administrator>adb start-server

 - daemon not running. starting it now on port 5037 *
 - daemon started successfully *

os-lib is the best modern way to write to a file, as mentioned here.

Here's how to write "hello" to the file.txt file.

os.write(os.pwd/"file.txt", "hello")

os-lib hides the Java ugliness and complexity (it uses the Java libs under the hood, so it's just as performant). See here for more info about using the lib.

go run . will run all of your files. The entry point is the function main() which has to be unique to the main package.

Another option is to build the binary with go build and run it.

There are a couple of other applications that i've seen recommended, you'll find them here:

Shelves

The upcoming Chrome "Scroll to text" feature is exactly what you are looking for....

https://github.com/bokand/ScrollToTextFragment

You basically add #targetText= at the end of the URL and the browser will scroll to the target text and highlight it after the page is loaded.

It is in the version of Chrome that is running on my desk, but currently it must be manually enabled. Presumably it will soon be enabled by default in the production Chrome builds and other browsers will follow, so OK to start adding to your links now and it will start working then.

You basically need to run the installation again to rebuild the master database with the new collation. You cannot change the entire server's collation any other way.

See:

• MSDN: Setting and changing the server collation
• How to change database or server collation (in the middle of the page)

Update: if you want to change the collation of a database, you can get the current collation using this snippet of T-SQL:

SELECT name, collation_name 
FROM sys.databases
WHERE name = 'test2'   -- put your database name here

This will yield a value something like:

Latin1_General_CI_AS

The _CI means "case insensitive" - if you want case-sensitive, use _CS in its place:

Latin1_General_CS_AS

So your T-SQL command would be:

ALTER DATABASE test2 -- put your database name here
   COLLATE Latin1_General_CS_AS   -- replace with whatever collation you need

You can get a list of all available collations on the server using:

SELECT * FROM ::fn_helpcollations()

You can see the server's current collation using:

SELECT SERVERPROPERTY ('Collation')

Update: as per the comments and reference on SearchEngineLand most web crawlers will index the updated title. Below answer is obsolete, but the code is still applicable.

You can just do something like, document.title = "This is the new page title.";, but that would totally defeat the purpose of SEO. Most crawlers aren't going to support javascript in the first place, so they will take whatever is in the element as the page title.

If you want this to be compatible with most of the important crawlers, you're going to need to actually change the title tag itself, which would involve reloading the page (PHP, or the like). You're not going to be able to get around that, if you want to change the page title in a way that a crawler can see.

For your purpose you can use this snnippet:

import org.apache.commons.lang3.StringUtils;

StringUtils.normalizeSpace(string);

This will normalize the spacing to single and will strip off the starting and trailing whitespaces as well.

String sampleString = "Hello    world!";
sampleString.replaceAll("\\s{2}", " "); // replaces exactly two consecutive spaces
sampleString.replaceAll("\\s{2,}", " "); // replaces two or more consecutive white spaces

You're looking for TRIM.

UPDATE FOO set FIELD2 = TRIM(FIELD2);

Seems like it might be worth it to mention that TRIM can support multiple types of whitespace, but only one at a time and it will use a space by default. You can, however, nest TRIMs.

 TRIM(BOTH ' ' FROM TRIM(BOTH '\n' FROM column))

If you really want to get rid of all the whitespace in one call, you're better off using REGEXP_REPLACE along with the [[:space:]] notation. Here is an example:

SELECT 
    -- using concat to show that the whitespace is actually removed.
    CONCAT(
         '+', 
         REGEXP_REPLACE(
             '    ha ppy    ', 
             -- This regexp matches 1 or more spaces at the beginning with ^[[:space:]]+
             -- And 1 or more spaces at the end with [[:space:]]+$
             -- By grouping them with `()` and splitting them with the `|`
             -- we match all of the expected values.
             '(^[[:space:]]+|[[:space:]]+$)', 

             -- Replace the above with nothing
             ''
         ), 
         '+') 
    as my_example;
-- outputs +ha ppy+

for a = 1 to 100 step 1

Command line in Windows . Please use %%a if running in Batch file.

    for /L %a in (1,1,100) Do echo %a 

#!/usr/bin/python
file=open("D:\\zzzz\\names2.txt","r+")
wordcount={}
for word in file.read().split():
    if word not in wordcount:
        wordcount[word] = 1
    else:
        wordcount[word] += 1
for k,v in wordcount.items():
    print k, v

Here is the simple solution with StreamEx

EntryStream.of(countByType).sortedBy(e -> e.getValue()).keys().toList();

Much longer solution, but accounts for the following scenarios:

1. Is the image smaller than the bounding box?
2. Is the Image and the Bounding Box square?
3. Is the Image square and the bounding box isn't
4. Is the image wider and taller than the bounding box
5. Is the image wider than the bounding box

6. Is the image taller than the bounding box

   private Image ResizePhoto(FileInfo sourceImage, int desiredWidth, int desiredHeight)
   {
       //throw error if bouning box is to small
       if (desiredWidth < 4 || desiredHeight < 4)
           throw new InvalidOperationException("Bounding Box of Resize Photo must be larger than 4X4 pixels.");            
       var original = Bitmap.FromFile(sourceImage.FullName);
   
       //store image widths in variable for easier use
       var oW = (decimal)original.Width;
       var oH = (decimal)original.Height;
       var dW = (decimal)desiredWidth;
       var dH = (decimal)desiredHeight;
   
       //check if image already fits
       if (oW < dW && oH < dH)
           return original; //image fits in bounding box, keep size (center with css) If we made it bigger it would stretch the image resulting in loss of quality.
   
       //check for double squares
       if (oW == oH && dW == dH)
       {
           //image and bounding box are square, no need to calculate aspects, just downsize it with the bounding box
           Bitmap square = new Bitmap(original, (int)dW, (int)dH);
           original.Dispose();
           return square;
       }
   
       //check original image is square
       if (oW == oH)
       {
           //image is square, bounding box isn't.  Get smallest side of bounding box and resize to a square of that center the image vertically and horizontally with Css there will be space on one side.
           int smallSide = (int)Math.Min(dW, dH);
           Bitmap square = new Bitmap(original, smallSide, smallSide);
           original.Dispose();
           return square;
       }
   
       //not dealing with squares, figure out resizing within aspect ratios            
       if (oW > dW && oH > dH) //image is wider and taller than bounding box
       {
           var r = Math.Min(dW, dH) / Math.Min(oW, oH); //two dimensions so figure out which bounding box dimension is the smallest and which original image dimension is the smallest, already know original image is larger than bounding box
           var nH = oH * r; //will downscale the original image by an aspect ratio to fit in the bounding box at the maximum size within aspect ratio.
           var nW = oW * r;
           var resized = new Bitmap(original, (int)nW, (int)nH);
           original.Dispose();
           return resized;
       }
       else
       {
           if (oW > dW) //image is wider than bounding box
           {
               var r = dW / oW; //one dimension (width) so calculate the aspect ratio between the bounding box width and original image width
               var nW = oW * r; //downscale image by r to fit in the bounding box...
               var nH = oH * r;
               var resized = new Bitmap(original, (int)nW, (int)nH);
               original.Dispose();
               return resized;
           }
           else
           {
               //original image is taller than bounding box
               var r = dH / oH;
               var nH = oH * r;
               var nW = oW * r;
               var resized = new Bitmap(original, (int)nW, (int)nH);
               original.Dispose();
               return resized;
           }
       }
   }
   

Create an Interface, and Create the Same Interface Property in Callback Class.

interface dataFetchDelegate {
    void didFetchdata(String data);
}
//callback class
public class BackendManager{
   public dataFetchDelegate Delegate;

   public void getData() {
       //Do something, Http calls/ Any other work
       Delegate.didFetchdata("this is callbackdata");
   }

}

Now in the class where you want to get called back implement the above Created Interface. and Also Pass "this" Object/Reference of your class to be called back.

public class Main implements dataFetchDelegate
{       
    public static void main( String[] args )
    {
        new Main().getDatafromBackend();
    }

    public void getDatafromBackend() {
        BackendManager inc = new BackendManager();
        //Pass this object as reference.in this Scenario this is Main Object            
        inc.Delegate = this;
        //make call
        inc.getData();
    }

    //This method is called after task/Code Completion
    public void didFetchdata(String callbackData) {
        // TODO Auto-generated method stub
        System.out.println(callbackData);
    }
}

Atom currently does not have a built-in terminal(that I know of), so you would have to install an additional package such as platformio-ide-terminal.

The following screenshots were taken on a mac.

1. Click on Atom and select Preferences
   
   
   
   
2. In the Settings tab that appears, click on the add icon + to Install a new package
   
   
   
   
3. A search bar will appear. Most packages should have the feature you desire in their name, so you can begin to type those keywords to see suggestions. In this case if you already know the name, just enter it there
   
   
   
   
4. Click Install

Use this query:

UPDATE `table` SET date_date=now();

Sample code can be:

<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
  {
  die('Could not connect: ' . mysql_error());
  }

mysql_select_db("my_db", $con);

mysql_query("UPDATE `table` SET date_date=now()");

mysql_close($con);
?>

We can get the distinct similar to the example shown below

 //example
           var  distinctValues =  DetailedBreakDown_Table.AsEnumerable().Select(r => new
            {
                InvestmentVehicleID = r.Field<string>("InvestmentVehicleID"),
                Universe = r.Field<string>("Universe"),
                AsOfDate = _imqDate,
                Ticker = "",
                Cusip = "",
                PortfolioDate = r.Field<DateTime>("PortfolioDate")

            } ).Distinct();

I think one of the biggest confusions is the difference between what you can do with mongo (or an interactive/hybrid shell) vs. mongo --eval (or a pure JavaScript shell). I keep these helpful documents handy:

• Differences Between Interactive and Scripted mongo
• Mongo Shell Command Helpers

Here is an example of scripting what you might otherwise do with show commands:

# List all databases and the collections in them

mongo --eval "
    db.getMongo().getDBNames().forEach(
        function(v, i){
            print(
                v + '\n\t' +
                db.getSiblingDB(v).getCollectionNames().join('\n\t')
            )
        }
    )
"

Note: That works really well as a one-liner. (But it looks terrible on Stack Overflow.)

mongo --eval "db.getMongo().getDBNames().forEach(function(v, i){print(v+'\n\t'+db.getSiblingDB(v).getCollectionNames().join('\n\t'))})"

Looks like the above answer did not answer the question completely.

I think you are looking for something like below:

class TransactionResponse {

   String Success, Message;
   List<Response> Response;

}

TransactionResponse = new Gson().fromJson(response, TransactionResponse.class);

where my response is something like this:

{"Success":false,"Message":"Invalid access token.","Response":null}

As you can see, the variable name should be same as the Json string representation of the key in the key value pair. This will automatically convert your gson string to JsonObject.

"Better" depends on what you're optimizing for.

How much do you care about storage size/performance vs. ease of development? More importantly - are you generating enough GUIDs, or fetching them frequently enough, that it matters?

If the answer is "no", char(36) is more than good enough, and it makes storing/fetching GUIDs dead-simple. Otherwise, binary(16) is reasonable, but you'll have to lean on MySQL and/or your programming language of choice to convert back and forth from the usual string representation.

In a case statement, a , is the equivalent of || in an if statement.

case car
   when 'toyota', 'lexus'
      # code
end

Some other things you can do with a Ruby case statement

First, the class must implements the click listenener :

implements OnItemClickListener

Then set a listener to the ListView

yourList.setOnItemclickListener(this);

And finally, create the clic method:

@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Toast.makeText(MainActivity.this, "You Clicked at ",   
 Toast.LENGTH_SHORT).show();
}

You could fill the dependend cell (D2) by a User Defined Function (VBA Macro Function) that takes the value of the C2-Cell as input parameter, returning the current date as ouput.

Having C2 as input parameter for the UDF in D2 tells Excel that it needs to reevaluate D2 everytime C2 changes (that is if auto-calculation of formulas is turned on for the workbook).

EDIT:

Here is some code:

For the UDF:

    Public Function UDF_Date(ByVal data) As Date

        UDF_Date = Now()

    End Function

As Formula in D2:

=UDF_Date(C2)

You will have to give the D2-Cell a Date-Time Format, or it will show a numeric representation of the date-value.

And you can expand the formula over the desired range by draging it if you keep the C2 reference in the D2-formula relative.

Note: This still might not be the ideal solution because every time Excel recalculates the workbook the date in D2 will be reset to the current value. To make D2 only reflect the last time C2 was changed there would have to be some kind of tracking of the past value(s) of C2. This could for example be implemented in the UDF by providing also the address alonside the value of the input parameter, storing the input parameters in a hidden sheet, and comparing them with the previous values everytime the UDF gets called.

Addendum:

Here is a sample implementation of an UDF that tracks the changes of the cell values and returns the date-time when the last changes was detected. When using it, please be aware that:

• The usage of the UDF is the same as described above.

• The UDF works only for single cell input ranges.

• The cell values are tracked by storing the last value of cell and the date-time when the change was detected in the document properties of the workbook. If the formula is used over large datasets the size of the file might increase considerably as for every cell that is tracked by the formula the storage requirements increase (last value of cell + date of last change.) Also, maybe Excel is not capable of handling very large amounts of document properties and the code might brake at a certain point.

• If the name of a worksheet is changed all the tracking information of the therein contained cells is lost.

• The code might brake for cell-values for which conversion to string is non-deterministic.

• The code below is not tested and should be regarded only as proof of concept. Use it at your own risk.

  Public Function UDF_Date(ByVal inData As Range) As Date
  
      Dim wb As Workbook
      Dim dProps As DocumentProperties
      Dim pValue As DocumentProperty
      Dim pDate As DocumentProperty
      Dim sName As String
      Dim sNameDate As String
  
      Dim bDate As Boolean
      Dim bValue As Boolean
      Dim bChanged As Boolean
  
      bDate = True
      bValue = True
  
      bChanged = False
  
  
      Dim sVal As String
      Dim dDate As Date
  
      sName = inData.Address & "_" & inData.Worksheet.Name
      sNameDate = sName & "_dat"
  
      sVal = CStr(inData.Value)
      dDate = Now()
  
      Set wb = inData.Worksheet.Parent
  
      Set dProps = wb.CustomDocumentProperties
  
  On Error Resume Next
  
      Set pValue = dProps.Item(sName)
  
      If Err.Number <> 0 Then
          bValue = False
          Err.Clear
      End If
  
  On Error GoTo 0
  
      If Not bValue Then
          bChanged = True
          Set pValue = dProps.Add(sName, False, msoPropertyTypeString, sVal)
      Else
          bChanged = pValue.Value <> sVal
          If bChanged Then
              pValue.Value = sVal
          End If
      End If
  
  On Error Resume Next
  
      Set pDate = dProps.Item(sNameDate)
  
      If Err.Number <> 0 Then
          bDate = False
          Err.Clear
      End If
  
  On Error GoTo 0
  
      If Not bDate Then
          Set pDate = dProps.Add(sNameDate, False, msoPropertyTypeDate, dDate)
      End If
  
      If bChanged Then
          pDate.Value = dDate
      Else
          dDate = pDate.Value
      End If
  
  
      UDF_Date = dDate
   End Function
  

Make the insertion of the date conditional upon the range.

This has an advantage of not changing the dates unless the content of the cell is changed, and it is in the range C2:C2, even if the sheet is closed and saved, it doesn't recalculate unless the adjacent cell changes.

Adapted from this tip and @Paul S answer

Private Sub Worksheet_Change(ByVal Target As Range)
 Dim R1 As Range
 Dim R2 As Range
 Dim InRange As Boolean
    Set R1 = Range(Target.Address)
    Set R2 = Range("C2:C20")
    Set InterSectRange = Application.Intersect(R1, R2)

  InRange = Not InterSectRange Is Nothing
     Set InterSectRange = Nothing
   If InRange = True Then
     R1.Offset(0, 1).Value = Now()
   End If
     Set R1 = Nothing
     Set R2 = Nothing
 End Sub

Bit late to the party on this question, but in case anyone finds it useful I just created a subclass:

public class ArrayList2<T> extends ArrayList<T> 
{
    private static final long serialVersionUID = 1L;

    public T getLast()
    {
        if (this.isEmpty())
        {
            return null;
        }
        else
        {       
            return this.get(this.size() - 1);
        }
    }
}

where('archived IS NOT NULL', null, false)

preg_replace offers one way:

$newText = preg_replace('/\bBy.*$/', '', $text);

FILE *file;
    if((file = fopen("sample.txt","r"))!=NULL)
        {
            // file exists
            fclose(file);
        }
    else
        {
            //File not found, no memory leak since 'file' == NULL
            //fclose(file) would cause an error
        }

A solution for:

• Both 32-bit AND 64-bit processes
• System.Diagnostics only (no System.Management)

I used the solution from Russell Gantman and rewritten it as an extension method you can use like this:

var process = Process.GetProcessesByName("explorer").First();
string path = process.GetMainModuleFileName();
// C:\Windows\explorer.exe

With this implementation:

internal static class Extensions {
    [DllImport("Kernel32.dll")]
    private static extern bool QueryFullProcessImageName([In] IntPtr hProcess, [In] uint dwFlags, [Out] StringBuilder lpExeName, [In, Out] ref uint lpdwSize);

    public static string GetMainModuleFileName(this Process process, int buffer = 1024) {
        var fileNameBuilder = new StringBuilder(buffer);
        uint bufferLength = (uint)fileNameBuilder.Capacity + 1;
        return QueryFullProcessImageName(process.Handle, 0, fileNameBuilder, ref bufferLength) ?
            fileNameBuilder.ToString() :
            null;
    }
}

Best guess:

var cur_value = $('#select-id').children('option:selected').text();

I like children better in this case because you know you're only going one branch down the DOM tree...

After struggling a lot, I finally found a solution, here we go -

Download the file jtds-1.3.1.jar and ntlmauth.dll and save it in Program File -> Java -> JDK -> jre -> bin.

Then use the following code -

String pPSSDBDriverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver";
Class.forName(pPSSDBDriverName);
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
conn = DriverManager.getConnection("jdbc:jtds:sqlserver://<ur_server:port>;UseNTLMv2=true;Domain=AD;Trusted_Connection=yes");
stmt = conn.createStatement();
String sql = " DELETE FROM <data> where <condition>;
stmt.executeUpdate(sql);

Please use

plt.show(block=False)
plt.close('all')

In Oracle database we can achieve like this.

CREATE TABLE Student(
  StudentID Number(38, 0) not null,
  DepartmentID Number(38, 0) not null,
  PRIMARY KEY (StudentID, DepartmentID)
);

Just use:

ViewContext.Controller.GetType().Name

This will give you the whole Controller's Name

Try:

GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'Pa55w0rd' WITH GRANT OPTION;

str = "aaaaabbbb"
newstr = str[-4:]

See : http://codepad.org/S3zjnKoD

You can use this code:

int count;
            try {
                URL url = new URL(f_url[0]);
                URLConnection conection = url.openConnection();
                conection.setConnectTimeout(TIME_OUT);
                conection.connect();
                // Getting file length
                int lenghtOfFile = conection.getContentLength();
                // Create a Input stream to read file - with 8k buffer
                InputStream input = new BufferedInputStream(url.openStream(),
                        8192);
                // Output stream to write file
                OutputStream output = new FileOutputStream(
                        "/sdcard/9androidnet.jpg");

                byte data[] = new byte[1024];
                long total = 0;
                while ((count = input.read(data)) != -1) {
                    total += count;
                    // publishing the progress....
                    // After this onProgressUpdate will be called
                    publishProgress("" + (int) ((total * 100) / lenghtOfFile));
                    // writing data to file
                    output.write(data, 0, count);
                }
                // flushing output
                output.flush();
                // closing streams
                output.close();
                input.close();
            } catch (SocketTimeoutException e) {
                connectionTimeout=true;
            } catch (Exception e) {
                Log.e("Error: ", e.getMessage());
            }

String s1 = ""; means that the empty String is assigned to s1. In this case, s1.length() is the same as "".length(), which will yield 0 as expected.

String s2 = null; means that (null) or "no value at all" is assigned to s2. So this one, s2.length() is the same as null.length(), which will yield a NullPointerException as you can't call methods on null variables (pointers, sort of) in Java.

Also, a point, the statement

String s1;

Actually has the same effect as:

String s1 = null;

Whereas

String s1 = "";

Is, as said, a different thing.

You can alter a foreign key constraint with delete cascade option as shown below. This will delete chind table rows related to master table rows when deleted.

ALTER TABLE MasterTable
ADD CONSTRAINT fk_xyz 
FOREIGN KEY (xyz) 
REFERENCES ChildTable (xyz) ON DELETE CASCADE 

Maybe a little late to the party but why don't you use sessions to store your data?

bookingfacilities.php

session_start();
$_SESSION['form_date'] = $date;

successfulbooking.php

session_start();
$date = $_SESSION['form_date']; 

Nobody will see this.

$hours = floor($seconds / 3600);
$mins = floor($seconds / 60 % 60);
$secs = floor($seconds % 60);

If you want to get time format:

$timeFormat = sprintf('%02d:%02d:%02d', $hours, $mins, $secs);

So, I hear this works:

Data$X1<-as.character(Data$X1)
Data$GEOID<-as.character(Data$BLKIDFP00)
Data<-within(Data,X1<-ifelse(is.na(Data$X1),GEOID,Data$X2)) 

But I admit I have only intermittent luck with it.

Alternatively, you could use the jQuery 1.2 inArray function, which should work across browsers:

jQuery.inArray( value, array [, fromIndex ] )

Just Simple Function Need To implement Show/hide 'div' using JavaScript

<a id="morelink" class="link-more" style="font-weight: bold; display: block;" onclick="this.style.display='none'; document.getElementById('states').style.display='block'; return false;">READ MORE</a>


<div id="states" style="display: block; line-height: 1.6em;">
 text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here text here  
    <a class="link-less" style="font-weight: bold;" onclick="document.getElementById('morelink').style.display='inline-block'; document.getElementById('states').style.display='none'; return false;">LESS INFORMATION</a>
    </div>

It seems the issue is in "-f ($_.Partition.Size/1GB)}}" If you want the value in MB then change the 1GB to 1MB.

This answer is taken from TuxRadar:

When running PHP through your web server, there are two distinct options: running it using PHP's CGI SAPI, or running it as a module for the web server. Each have their own benefits, but, overall, the module is generally preferred.

Running PHP as a CGI means that you basically tell your web server the location of the PHP executable file, and the server runs that executable, giving it the script you called, each time you visit a page. That means each time you load a page, PHP needs to read php.ini and set its settings, it needs to load all its extensions, and then it needs to start work parsing the script - there is a lot of repeated work.

When you run PHP as a module, PHP literally sits inside your web server - it starts only once, loads its settings and extensions only once, and can also store information across sessions. For example, PHP accelerators rely on PHP being able to save cached data across requests, which is impossible using the CGI version.

The obvious advantage of using PHP as a module is speed - you will see a big speed boost if you convert from CGI to a module. Many people, particularly Windows users, do not realise this, and carry on using the php.exe CGI SAPI, which is a shame - the module is usually three to five times faster.

There is one key advantage to using the CGI version, though, and that is that PHP reads its settings every time you load a page. With PHP running as a module, any changes you make in the php.ini file do not kick in until you restart your web server, which makes the CGI version preferable if you are testing a lot of new settings and want to see instant responses.

SHOW CREATE PROCEDURE proc_name;

returns the definition of proc_name

.col-xs-2{
    background:#00f;
    color:#FFF;
}
.col-half-offset{
    margin-left:4.166666667%
}

<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<div class="container">
    <div class="row" style="border: 1px solid red">
        <div class="col-xs-4" id="p1">One</div>
        <div class="col-xs-4 col-half-offset" id="p2">Two</div>
        <div class="col-xs-4 col-half-offset" id="p3">Three</div>
        <div>Test</div>
    </div>
</div>

Without XML Schema (XSD file) an XML file is a relatively free set of elements and attributes. The XSD file defines which elements and attributes are permitted and in which order.

In general XML is a metalanguage. XSD files define specific languages within that metalanguage. For example, if your XSD file contains the definition of XHTML 1.0, then your XML file is required to fit XHTML 1.0 rather than some other format.

strcpy(str1+strlen(str1), str2);

I have created this jquery that solved my problem.

public void ChangeClassIntoSelected(String name,String div) {
        JavascriptExecutor js = (JavascriptExecutor) driver;
        js.executeScript("Array.from($(\"div." + div +" ul[name=" + name + "]\")[0].children).forEach((element, index) => {\n" +
                "   $(element).addClass('ui-selected');\n" +
                "});");
    }

With this script you are able to change the actual class name into some other thing.

There are multiple false assumptions you're making here - First, function belong to a class and not to an instance, meaning the actual function involved is the same for any two instances of a class. Second, default parameters are evaluated at compile time and are constant (as in, a constant object reference - if the parameter is a mutable object you can change it). Thus you cannot access self in a default parameter and will never be able to.

I took the liberty to expand the answer from nona-urbiz; just add this to your ~/.bashrc:

git-pullall () { for RMT in $(git remote); do git pull -v $RMT $1; done; }    
alias git-pullall=git-pullall

git-pushall () { for RMT in $(git remote); do git push -v $RMT $1; done; }
alias git-pushall=git-pushall

Usage:

git-pullall master

git-pushall master ## or
git-pushall

If you do not provide any branch argument for git-pullall then the pull from non-default remotes will fail; left this behavior as it is, since it's analogous to git.

Check this:

alert(window.location.hostname);

this will return host name as www.domain.com

and:

window.location.host

will return domain name with port like www.example.com:80

For complete reference check Mozilla developer site.

Here's pure javascript example of handling classes during scrolling.

You'd probably want to throttle handling scroll events, more so as handler logic gets more complex, in that case throttle from lodash lib comes in handy.

And if you're doing spa, keep in mind that you need to clear event listeners with removeEventListener once they're not needed (eg during onDestroy lifecycle hook of your component, like destroyed() for Vue, or maybe return function of useEffect hook for React).

const navbar = document.getElementById('navbar')_x000D_
_x000D_
// OnScroll event handler_x000D_
const onScroll = () => {_x000D_
_x000D_
  // Get scroll value_x000D_
  const scroll = document.documentElement.scrollTop_x000D_
_x000D_
  // If scroll value is more than 0 - add class_x000D_
  if (scroll > 0) {_x000D_
    navbar.classList.add("scrolled");_x000D_
  } else {_x000D_
    navbar.classList.remove("scrolled")_x000D_
  }_x000D_
}_x000D_
_x000D_
// Optional - throttling onScroll handler at 100ms with lodash_x000D_
const throttledOnScroll = _.throttle(onScroll, 100, {})_x000D_
_x000D_
// Use either onScroll or throttledOnScroll_x000D_
window.addEventListener('scroll', onScroll)

#navbar {_x000D_
  position: fixed;_x000D_
  top: 0;_x000D_
  left: 0;_x000D_
  right: 0;_x000D_
  width: 100%;_x000D_
  height: 60px;_x000D_
  background-color: #89d0f7;_x000D_
  box-shadow: 0px 5px 0px rgba(0, 0, 0, 0);_x000D_
  transition: box-shadow 500ms;_x000D_
}_x000D_
_x000D_
#navbar.scrolled {_x000D_
  box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.25);_x000D_
}_x000D_
_x000D_
#content {_x000D_
  height: 3000px;_x000D_
  margin-top: 60px;_x000D_
}

<!-- Optional - lodash library, used for throttlin onScroll handler-->_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>_x000D_
<header id="navbar"></header>_x000D_
<div id="content"></div>

http://connect.microsoft.com/VisualStudio/feedback/ViewFeedback.aspx?FeedbackID=367077

Problem Statement
It's possible to write LINQ to SQL that gets all rows that have either null or an empty string in a given field, but it's not possible to use string.IsNullOrEmpty to do it, even though many other string methods map to LINQ to SQL. Proposed Solution Allow string.IsNullOrEmpty in a LINQ to SQL where clause so that these two queries have the same result:

var fieldNullOrEmpty =
from item in db.SomeTable
where item.SomeField == null || item.SomeField.Equals(string.Empty)
select item;

var fieldNullOrEmpty2 =
from item in db.SomeTable
where string.IsNullOrEmpty(item.SomeField)
select item;

Other Reading:
1. DevArt
2. Dervalp.com
3. StackOverflow Post

Have you tried explicitly declaring the version of mail.jar you want? Maven's dependency resolution should use this for dependency resolution over all other versions.

<project>
  <modelVersion>4.0.0</modelVersion>
  <groupId>test</groupId>
  <artifactId>jruby</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <parent>
        <artifactId>base</artifactId>
        <groupId>es.uniovi.innova</groupId>
        <version>1.0.0</version>
    </parent>
    <dependencies>          
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>VERSION-#</version>
            <scope>provided</scope>
        </dependency> 
        <dependency>
            <groupId>com.liferay.portal</groupId>
            <artifactId>ALL-DEPS</artifactId>
            <version>1.0</version>
            <scope>provided</scope>
            <type>pom</type>
        </dependency>
    </dependencies>
</project>

I did it like this:

li {
  list-style: none;
  background-image: url("./assets/img/control.svg");
  background-repeat: no-repeat;
  background-position: left center;
}

Or you can try this if you want to change the color:

li::before {
  content: "";
  display: inline-block;
  height: 10px;
  width: 10px;
  margin-right: 7px;

  background-color: orange;
  -webkit-mask-image: url("./assets/img/control.svg");
  -webkit-mask-size: cover;
}

As well as making sure that you have first called $("#myForm").validate();, make sure that your dynamic control has been added to the DOM before adding the validation rules.

As of Git v2.23.0 (August 2019), git switch is preferred over git checkout when you’re simply switching branches/tags. I’m guessing they did this since git checkout had two functions: for switching branches and for restoring files. So in v2.23.0, they added two new commands, git switch, and git restore, to separate those concerns. I would predict at some point in the future, git checkout will be deprecated.

To switch to a normal branch, use git switch <branch-name>. To switch to a commit-like object, including single commits and tags, use git switch --detach <commitish>, where <commitish> is the tag name or commit number.

The --detach option forces you to recognize that you’re in a mode of “inspection and discardable experiments”. To create a new branch from the commitish you’re switching to, use git switch -c <new-branch> <start-point>.

Why don't you simply try

System.out.println(1500/1000.0);
System.out.println(500/1000.0);

You're not allowed to change the contents of a string constant, which is what the first p points to. The second p is an array initialized with a string constant, and you can change its contents.

Got a very simple solution. Try the following code with verified result-

<html>
<head>
<script>
    function f1(el) {
    var val = el.value;
    alert(val.slice(0, el.selectionStart).length);
}
</script>
</head>
<body>
<input type=text id=t1 value=abcd>
    <button onclick="f1(document.getElementById('t1'))">check position</button>
</body>
</html>

I'm giving you the fiddle_demo

Here is a simple answer. Hope it helps someone.

import org.springframework.boot.devtools.remote.client.HttpHeaderInterceptor;
import org.springframework.http.MediaType;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.web.client.RestTemplate;


public String post(SomeRequest someRequest) {
    // create a list the headers 
    List<ClientHttpRequestInterceptor> interceptors = new ArrayList<>();
    interceptors.add(new HttpHeaderInterceptor("Accept", MediaType.APPLICATION_JSON_VALUE));
    interceptors.add(new HttpHeaderInterceptor("ContentType", MediaType.APPLICATION_JSON_VALUE));
    interceptors.add(new HttpHeaderInterceptor("username", "user123"));
    interceptors.add(new HttpHeaderInterceptor("customHeader1", "c1"));
    interceptors.add(new HttpHeaderInterceptor("customHeader2", "c2"));
    // initialize RestTemplate
    RestTemplate restTemplate = new RestTemplate();
    // set header interceptors here
    restTemplate.setInterceptors(interceptors);
    // post the request. The response should be JSON string
    String response = restTemplate.postForObject(Url, someRequest, String.class);
    return response;
}

It also happens if you're trying to access an instance when you have a pointer, and vice versa:

struct foo
{
  int x, y, z;
};

struct foo a, *b = &a;

b.x = 12;  /* This will generate the error, should be b->x or (*b).x */

As pointed out in a comment, this can be made excruciating if someone goes and typedefs a pointer, i.e. includes the * in a typedef, like so:

typedef struct foo* Foo;

Because then you get code that looks like it's dealing with instances, when in fact it's dealing with pointers:

Foo a_foo = get_a_brand_new_foo();
a_foo->field = FANTASTIC_VALUE;

Note how the above looks as if it should be written a_foo.field, but that would fail since Foo is a pointer to struct. I strongly recommend against typedef:ed pointers in C. Pointers are important, don't hide your asterisks. Let them shine.

Is the final order defined by a list of indices ?

>>> items = [1, None, "chicken", int]
>>> order = [3, 0, 1, 2]

>>> ordered_list = [items[i] for i in order]
>>> ordered_list
[<type 'int'>, 1, None, 'chicken']

edit: meh. AJ was faster... How can I reorder a list in python?

This solution doesn't need web.config file changes or catch-all routes.

First, create a controller like this;

public class ErrorController : Controller
{
    public ActionResult Index()
    {
        ViewBag.Title = "Regular Error";
        return View();
    }

    public ActionResult NotFound404()
    {
        ViewBag.Title = "Error 404 - File not Found";
        return View("Index");
    }
}

Then create the view under "Views/Error/Index.cshtml" as;

 @{
      Layout = "~/Views/Shared/_Layout.cshtml";
  }                     
  <p>We're sorry, page you're looking for is, sadly, not here.</p>

Then add the following in the Global asax file as below:

protected void Application_Error(object sender, EventArgs e)
{
        // Do whatever you want to do with the error

        //Show the custom error page...
        Server.ClearError(); 
        var routeData = new RouteData();
        routeData.Values["controller"] = "Error";

        if ((Context.Server.GetLastError() is HttpException) && ((Context.Server.GetLastError() as HttpException).GetHttpCode() != 404))
        {
            routeData.Values["action"] = "Index";
        }
        else
        {
            // Handle 404 error and response code
            Response.StatusCode = 404;
            routeData.Values["action"] = "NotFound404";
        } 
        Response.TrySkipIisCustomErrors = true; // If you are using IIS7, have this line
        IController errorsController = new ErrorController();
        HttpContextWrapper wrapper = new HttpContextWrapper(Context);
        var rc = new System.Web.Routing.RequestContext(wrapper, routeData);
        errorsController.Execute(rc);

        Response.End();
}

If you still get the custom IIS error page after doing this, make sure the following sections are commented out(or empty) in the web config file:

<system.web>
   <customErrors mode="Off" />
</system.web>
<system.webServer>   
   <httpErrors>     
   </httpErrors>
</system.webServer>