I had the same problem. In my case, macOS doesn't load my SSH keys, but I fix it with:

ssh-add <SSH private key>
ssh-add <SSH public key>

I couldn't connect to a Droplet on DigitalOcean, but the subsequent commands work for me.

You can go to the forum here.

After running below command it works for me

sudo chmod 600 /path/to/my/key.pem

It's an old question, but if someone gets here like me...

This might be result of a wrong date in the server. If you are working with an embedded system this might be the cause... So check your date:

$ date

I had this issue after restoring a hard drive from a backup.

My problem: I could check & see my remote (using git remote -v), but when I executed git push origin master, it returned : Permission denied (publickey). fatal: Could not read from remote repository.

I already had an SSH folder and SSH keys, and adding them via Terminal (ssh-add /path/to/my-ssh-folder/id_rsa) successfully added my identity, but I still couldn't push and still got the same error. Generating a new key was a bad idea for me, because it was tied to other very secure permissions on AWS.

It turned out the link between the key and my Github profile had broken.

Solution: Re-adding the key to Github in Profile > Settings > SSH and GPG keys resolved the issue.

Also: My account had 2-factor authentication set up. When this is the case, if Terminal requests credentials, use your username - but NOT your Github password. For 2-factor authentication, you need to use your authentication code (for me, this was generated by Authy on my phone, and I had to copy it into Terminal for the pw).

I had the same issue Kabir Sarin had. The solution was to clone the repo via SSH, instead of using the https URL. so this is what helped me, and hopefully others:

    git clone [email protected]:{accountName}/{repoName}.git

You're right in your assumption about Spring vs. Quartz instantiating the class. However, Spring provides some classes that let you do some primitive dependency injection in Quartz. Check out SchedulerFactoryBean.setJobFactory() along with the SpringBeanJobFactory. Essentially, by using the SpringBeanJobFactory, you enable dependency injection on all Job properties, but only for values that are in the Quartz scheduler context or the job data map. I don't know what all DI styles it supports (constructor, annotation, setter...) but I do know it supports setter injection.

I have the home directory in a non-standard location and in sshd logs I have the following line, even if all permissions were just fine (see the other answers):

Could not open authorized keys '/data/home/user1/.ssh/authorized_keys': Permission denied

I have found a solution here: Trouble with ssh public key authentication to RHEL 6.5

In my particular case:

• Added a new line in /etc/selinux/targeted/contexts/files/file_contexts.homedirs:

• This is the original line for regular home directories:

  /home/[^/]*/\.ssh(/.*)? unconfined_u:object_r:ssh_home_t:s0

• This is my new line:

  /data/home/[^/]*/\.ssh(/.*)? unconfined_u:object_r:ssh_home_t:s0

• Followed by a restorecon -r /data/ and a sshd restart.

Finally a solution that works without having to make any changes to the server:

1. Download the latest jsch.jar as Yvan suggests: http://sourceforge.net/projects/jsch/files/jsch.jar/ jsch-0.1.52.jar works fine

2. Place the downloaded file in your "...\JetBrains\PhpStorm 8.0.1\lib", and remove the existing jsch-file (for PHPStorm 8 it's jsch-0.1.50.jar)

3. Restart PHPStorm and it should work

Use the same solution for Webstorm

You may want to double check the authorized_keys file permissions:

$ chmod 600 ~/.ssh/authorized_keys

Newer SSH server versions are very picky on this respect.

If you're using a Bitnami image, log in as 'bitnami'.

Seems obvious, but something I overlooked.

Except the way described in the approved answer, there's another way if you have single native libs in your project.

• in Project properties->Java Build Path->Tab "Source" there's a list of your source-folders
• For each entry, there's "Native library locations", which also supports paths within the workspace.
• This will make Eclipse add it to your java.library.path.

I like Lift ;-)

Play is my second choice for Scala-friendly web frameworks.

Wicket is my third choice.

Regular expressions are very strong but expensive tool. It is valid to use them for checking if the first character is a digit but it is not so elegant :) I prefer this way:

public boolean isLeadingDigit(final String value){
    final char c = value.charAt(0);
    return (c >= '0' && c <= '9');
}

In a scenario like this, where multiple/unkown objects might be interested in changes, use $rootScope.$broadcast from the item being changed.

Rather than creating your own registry of listeners (which have to be cleaned up on various $destroys), you should be able to $broadcast from the service in question.

You must still code the $on handlers in each listener but the pattern is decoupled from multiple calls to $digest and thus avoids the risk of long-running watchers.

This way, also, listeners can come and go from the DOM and/or different child scopes without the service changing its behavior.

** update: examples **

Broadcasts would make the most sense in "global" services that could impact countless other things in your app. A good example is a User service where there are a number of events that could take place such as login, logout, update, idle, etc. I believe this is where broadcasts make the most sense because any scope can listen for an event, without even injecting the service, and it doesn't need to evaluate any expressions or cache results to inspect for changes. It just fires and forgets (so make sure it's a fire-and-forget notification, not something that requires action)

.factory('UserService', [ '$rootScope', function($rootScope) {
   var service = <whatever you do for the object>

   service.save = function(data) {
     .. validate data and update model ..
     // notify listeners and provide the data that changed [optional]
     $rootScope.$broadcast('user:updated',data);
   }

   // alternatively, create a callback function and $broadcast from there if making an ajax call

   return service;
}]);

The service above would broadcast a message to every scope when the save() function completed and the data was valid. Alternatively, if it's a $resource or an ajax submission, move the broadcast call into the callback so it fires when the server has responded. Broadcasts suit that pattern particularly well because every listener just waits for the event without the need to inspect the scope on every single $digest. The listener would look like:

.controller('UserCtrl', [ 'UserService', '$scope', function(UserService, $scope) {

  var user = UserService.getUser();

  // if you don't want to expose the actual object in your scope you could expose just the values, or derive a value for your purposes
   $scope.name = user.firstname + ' ' +user.lastname;

   $scope.$on('user:updated', function(event,data) {
     // you could inspect the data to see if what you care about changed, or just update your own scope
     $scope.name = user.firstname + ' ' + user.lastname;
   });

   // different event names let you group your code and logic by what happened
   $scope.$on('user:logout', function(event,data) {
     .. do something differently entirely ..
   });

 }]);

One of the benefits of this is the elimination of multiple watches. If you were combining fields or deriving values like the example above, you'd have to watch both the firstname and lastname properties. Watching the getUser() function would only work if the user object was replaced on updates, it would not fire if the user object merely had its properties updated. In which case you'd have to do a deep watch and that is more intensive.

$broadcast sends the message from the scope it's called on down into any child scopes. So calling it from $rootScope will fire on every scope. If you were to $broadcast from your controller's scope, for example, it would fire only in the scopes that inherit from your controller scope. $emit goes the opposite direction and behaves similarly to a DOM event in that it bubbles up the scope chain.

Keep in mind that there are scenarios where $broadcast makes a lot of sense, and there are scenarios where $watch is a better option - especially if in an isolate scope with a very specific watch expression.

A simpler one.

def printf(format, *values):
    print(format % values )

Then:

printf("Hello, this is my name %s and my age %d", "Martin", 20)

To Write

Set objFileToWrite = CreateObject("Scripting.FileSystemObject").OpenTextFile("C:\listfile.txt",2,true)
objFileToWrite.WriteLine(data)
objFileToWrite.Close
Set objFileToWrite = Nothing

OpenTextFile parameters:

<filename>, IOMode (1=Read,2=write,8=Append), Create (true,false), Format (-2=System Default,-1=Unicode,0=ASCII)

To Read the entire file

Set objFileToRead = CreateObject("Scripting.FileSystemObject").OpenTextFile("C:\listfile.txt",1)
strFileText = objFileToRead.ReadAll()
objFileToRead.Close
Set objFileToRead = Nothing

To Read line by line

Set objFileToRead = CreateObject("Scripting.FileSystemObject").OpenTextFile("C:\listfile.txt",1)
Dim strLine
do while not objFileToRead.AtEndOfStream
     strLine = objFileToRead.ReadLine()
     'Do something with the line
loop
objFileToRead.Close
Set objFileToRead = Nothing

Look for linebreaks! Those are often the cause.

Lists are what they seem - a list of values. Each one of them is numbered, starting from zero - the first one is numbered zero, the second 1, the third 2, etc. You can remove values from the list, and add new values to the end. Example: Your many cats' names.

Tuples are just like lists, but you can't change their values. The values that you give it first up, are the values that you are stuck with for the rest of the program. Again, each value is numbered starting from zero, for easy reference. Example: the names of the months of the year.

Dictionaries are similar to what their name suggests - a dictionary. In a dictionary, you have an 'index' of words, and for each of them a definition. In python, the word is called a 'key', and the definition a 'value'. The values in a dictionary aren't numbered - tare similar to what their name suggests - a dictionary. In a dictionary, you have an 'index' of words, and for each of them a definition. In python, the word is called a 'key', and the definition a 'value'. The values in a dictionary aren't numbered - they aren't in any specific order, either - the key does the same thing. You can add, remove, and modify the values in dictionaries. Example: telephone book.

I ran into this in Swift.

Moving the .xib file into the project's Base.lproj folder got rid of this error.

In case, you want to rename _id in same collection (for instance, if you want to prefix some _ids):

db.someCollection.find().snapshot().forEach(function(doc) { 
   if (doc._id.indexOf("2019:") != 0) {
       print("Processing: " + doc._id);
       var oldDocId = doc._id;
       doc._id = "2019:" + doc._id; 
       db.someCollection.insert(doc);
       db.someCollection.remove({_id: oldDocId});
   }
});

if (doc._id.indexOf("2019:") != 0) {... needed to prevent infinite loop, since forEach picks the inserted docs, even throught .snapshot() method used.

Use a packet analyzer to intercept the packets to/from somewhere.com. Studying those packets should tell you what is going on.

Time-outs or connections refused could mean that the remote host is too busy.

UPDATE: using Pandas 0.22.0

Newer Pandas versions have new methods 'DataFrame.isna()' and 'DataFrame.notna()'

In [71]: df
Out[71]:
     a    b  c
0  NaN  7.0  0
1  0.0  NaN  4
2  2.0  NaN  4
3  1.0  7.0  0
4  1.0  3.0  9
5  7.0  4.0  9
6  2.0  6.0  9
7  9.0  6.0  4
8  3.0  0.0  9
9  9.0  0.0  1

In [72]: df.isna().any()
Out[72]:
a     True
b     True
c    False
dtype: bool

as list of columns:

In [74]: df.columns[df.isna().any()].tolist()
Out[74]: ['a', 'b']

to select those columns (containing at least one NaN value):

In [73]: df.loc[:, df.isna().any()]
Out[73]:
     a    b
0  NaN  7.0
1  0.0  NaN
2  2.0  NaN
3  1.0  7.0
4  1.0  3.0
5  7.0  4.0
6  2.0  6.0
7  9.0  6.0
8  3.0  0.0
9  9.0  0.0

OLD answer:

Try to use isnull():

In [97]: df
Out[97]:
     a    b  c
0  NaN  7.0  0
1  0.0  NaN  4
2  2.0  NaN  4
3  1.0  7.0  0
4  1.0  3.0  9
5  7.0  4.0  9
6  2.0  6.0  9
7  9.0  6.0  4
8  3.0  0.0  9
9  9.0  0.0  1

In [98]: pd.isnull(df).sum() > 0
Out[98]:
a     True
b     True
c    False
dtype: bool

or as @root proposed clearer version:

In [5]: df.isnull().any()
Out[5]:
a     True
b     True
c    False
dtype: bool

In [7]: df.columns[df.isnull().any()].tolist()
Out[7]: ['a', 'b']

to select a subset - all columns containing at least one NaN value:

In [31]: df.loc[:, df.isnull().any()]
Out[31]:
     a    b
0  NaN  7.0
1  0.0  NaN
2  2.0  NaN
3  1.0  7.0
4  1.0  3.0
5  7.0  4.0
6  2.0  6.0
7  9.0  6.0
8  3.0  0.0
9  9.0  0.0

Reply to abccd and Question to anyone:

The command: C:\Python34\Scripts>py -3 -m pip install pandas executed just fine. Unfortunately, I can't import Pandas.

Directory path: C:\users\myname\downloads\miniconda3\lib\site-packages

My Question: How is it that Pandas' dependency packages(numpy, python-dateutil, pytz, six) also having the same above directory path are able to import just fine but Pandas does not?

import pandas

Traceback (most recent call last):
  File "<pyshell#9>", line 1, in <module>
    import pandas
ImportError: No module named 'pandas'

I finally got Pandas reinstalled and imported with the help of the following web pages: *http://pandas.pydata.org/pandas-docs/stable/pandas.pdf (Pages 403 and 404 of 2215 ... 2.2.2 Installing Pandas with Miniconda) *https://conda.io/docs/user-guide/install/download.html *https://conda.io/docs/user-guide/getting-started.html

After installing Miniconda, I created a new environment area to get Pandas reinstalled and imported. This new environment included the current Python version 3.6.3. I could not import Pandas using Python 3.4.4.

When using the official PHP images of Docker, use docker-php-ext-install bcmath.

Source: https://hub.docker.com/_/php?tab=description#php-core-extensions

As others have indicated, something of the form

x ? y : z

is an expression, not a (complete) statement. It is an rvalue which needs to get used someplace - like on the right side of an assignment, or a parameter to a function etc.

Perhaps you could look at this: http://download.oracle.com/javase/tutorial/java/nutsandbolts/expressions.html

You can use .delay() before an animation, like this:

$("#myElem").show().delay(5000).fadeOut();

If it's not an animation, use setTimeout() directly, like this:

$("#myElem").show();
setTimeout(function() { $("#myElem").hide(); }, 5000);

You do the second because .hide() wouldn't normally be on the animation (fx) queue without a duration, it's just an instant effect.

Or, another option is to use .delay() and .queue() yourself, like this:

$("#myElem").show().delay(5000).queue(function(n) {
  $(this).hide(); n();
});

It sounds like it's just a compiler warning.

Usage of scanf_s prevents possible buffer overflow.
See: http://code.wikia.com/wiki/Scanf_s

Good explanation as to why scanf can be dangerous: Disadvantages of scanf

So as suggested, you can try replacing scanf with scanf_s or disable the compiler warning.

ENABLEDELAYEDEXPANSION is a parameter passed to the SETLOCAL command (look at setlocal /?)

Its effect lives for the duration of the script, or an ENDLOCAL:

When the end of a batch script is reached, an implied ENDLOCAL is executed for any outstanding SETLOCAL commands issued by that batch script.

In particular, this means that if you use SETLOCAL ENABLEDELAYEDEXPANSION in a script, any environment variable changes are lost at the end of it unless you take special measures.

You can attach a SLOT to the

void aboutToQuit();

signal of your QApplication. This signal should be raised just before app closes.

You should remove .Value from all option buttons because option buttons don't hold the resultant value, the option group control does. If you omit .Value then the default interface will report the option button status, as you are expecting. You should write all relevant code under commandbutton_click events because whenever the commandbutton is clicked the option button action will run.

If you want to run action code when the optionbutton is clicked then don't write an if loop for that.

EXAMPLE:

Sub CommandButton1_Click
    If OptionButton1 = true then
        (action code...)
    End if
End sub

Sub OptionButton1_Click   
    (action code...)
End sub

Request.Url.Segments.Last()

Another option.

Paul's solution provides a simple, general solution.

The question asks for the "the fastest and simplest way". Let's address the fastest part too. We'll arrive at our final, fastest code in an iterative manner. Benchmarking each iteration can be found at the end of the answer.

All the solutions and the benchmarking code can be found on the Go Playground. The code on the Playground is a test file, not an executable. You have to save it into a file named XX_test.go and run it with

go test -bench . -benchmem

Foreword:

The fastest solution is not a go-to solution if you just need a random string. For that, Paul's solution is perfect. This is if performance does matter. Although the first 2 steps (Bytes and Remainder) might be an acceptable compromise: they do improve performance by like 50% (see exact numbers in the II. Benchmark section), and they don't increase complexity significantly.

Having said that, even if you don't need the fastest solution, reading through this answer might be adventurous and educational.

I. Improvements

1. Genesis (Runes)

As a reminder, the original, general solution we're improving is this:

func init() {
    rand.Seed(time.Now().UnixNano())
}

var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")

func RandStringRunes(n int) string {
    b := make([]rune, n)
    for i := range b {
        b[i] = letterRunes[rand.Intn(len(letterRunes))]
    }
    return string(b)
}

2. Bytes

If the characters to choose from and assemble the random string contains only the uppercase and lowercase letters of the English alphabet, we can work with bytes only because the English alphabet letters map to bytes 1-to-1 in the UTF-8 encoding (which is how Go stores strings).

So instead of:

var letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")

we can use:

var letters = []bytes("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")

Or even better:

const letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

Now this is already a big improvement: we could achieve it to be a const (there are string constants but there are no slice constants). As an extra gain, the expression len(letters) will also be a const! (The expression len(s) is constant if s is a string constant.)

And at what cost? Nothing at all. strings can be indexed which indexes its bytes, perfect, exactly what we want.

Our next destination looks like this:

const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"

func RandStringBytes(n int) string {
    b := make([]byte, n)
    for i := range b {
        b[i] = letterBytes[rand.Intn(len(letterBytes))]
    }
    return string(b)
}

3. Remainder

Previous solutions get a random number to designate a random letter by calling rand.Intn() which delegates to Rand.Intn() which delegates to Rand.Int31n().

This is much slower compared to rand.Int63() which produces a random number with 63 random bits.

So we could simply call rand.Int63() and use the remainder after dividing by len(letterBytes):

func RandStringBytesRmndr(n int) string {
    b := make([]byte, n)
    for i := range b {
        b[i] = letterBytes[rand.Int63() % int64(len(letterBytes))]
    }
    return string(b)
}

This works and is significantly faster, the disadvantage is that the probability of all the letters will not be exactly the same (assuming rand.Int63() produces all 63-bit numbers with equal probability). Although the distortion is extremely small as the number of letters 52 is much-much smaller than 1<<63 - 1, so in practice this is perfectly fine.

^{To make this understand easier: let's say you want a random number in the range of 0..5. Using 3 random bits, this would produce the numbers 0..1 with double probability than from the range 2..5. Using 5 random bits, numbers in range 0..1 would occur with 6/32 probability and numbers in range 2..5 with 5/32 probability which is now closer to the desired. Increasing the number of bits makes this less significant, when reaching 63 bits, it is negligible.}

4. Masking

Building on the previous solution, we can maintain the equal distribution of letters by using only as many of the lowest bits of the random number as many is required to represent the number of letters. So for example if we have 52 letters, it requires 6 bits to represent it: 52 = 110100b. So we will only use the lowest 6 bits of the number returned by rand.Int63(). And to maintain equal distribution of letters, we only "accept" the number if it falls in the range 0..len(letterBytes)-1. If the lowest bits are greater, we discard it and query a new random number.

Note that the chance of the lowest bits to be greater than or equal to len(letterBytes) is less than 0.5 in general (0.25 on average), which means that even if this would be the case, repeating this "rare" case decreases the chance of not finding a good number. After n repetition, the chance that we still don't have a good index is much less than pow(0.5, n), and this is just an upper estimation. In case of 52 letters the chance that the 6 lowest bits are not good is only (64-52)/64 = 0.19; which means for example that chances to not have a good number after 10 repetition is 1e-8.

So here is the solution:

const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
const (
    letterIdxBits = 6                    // 6 bits to represent a letter index
    letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
)

func RandStringBytesMask(n int) string {
    b := make([]byte, n)
    for i := 0; i < n; {
        if idx := int(rand.Int63() & letterIdxMask); idx < len(letterBytes) {
            b[i] = letterBytes[idx]
            i++
        }
    }
    return string(b)
}

5. Masking Improved

The previous solution only uses the lowest 6 bits of the 63 random bits returned by rand.Int63(). This is a waste as getting the random bits is the slowest part of our algorithm.

If we have 52 letters, that means 6 bits code a letter index. So 63 random bits can designate 63/6 = 10 different letter indices. Let's use all those 10:

const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
const (
    letterIdxBits = 6                    // 6 bits to represent a letter index
    letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
    letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
)

func RandStringBytesMaskImpr(n int) string {
    b := make([]byte, n)
    // A rand.Int63() generates 63 random bits, enough for letterIdxMax letters!
    for i, cache, remain := n-1, rand.Int63(), letterIdxMax; i >= 0; {
        if remain == 0 {
            cache, remain = rand.Int63(), letterIdxMax
        }
        if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
            b[i] = letterBytes[idx]
            i--
        }
        cache >>= letterIdxBits
        remain--
    }

    return string(b)
}

6. Source

The Masking Improved is pretty good, not much we can improve on it. We could, but not worth the complexity.

Now let's find something else to improve. The source of random numbers.

There is a crypto/rand package which provides a Read(b []byte) function, so we could use that to get as many bytes with a single call as many we need. This wouldn't help in terms of performance as crypto/rand implements a cryptographically secure pseudorandom number generator so it's much slower.

So let's stick to the math/rand package. The rand.Rand uses a rand.Source as the source of random bits. rand.Source is an interface which specifies a Int63() int64 method: exactly and the only thing we needed and used in our latest solution.

So we don't really need a rand.Rand (either explicit or the global, shared one of the rand package), a rand.Source is perfectly enough for us:

var src = rand.NewSource(time.Now().UnixNano())

func RandStringBytesMaskImprSrc(n int) string {
    b := make([]byte, n)
    // A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
    for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
        if remain == 0 {
            cache, remain = src.Int63(), letterIdxMax
        }
        if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
            b[i] = letterBytes[idx]
            i--
        }
        cache >>= letterIdxBits
        remain--
    }

    return string(b)
}

Also note that this last solution doesn't require you to initialize (seed) the global Rand of the math/rand package as that is not used (and our rand.Source is properly initialized / seeded).

One more thing to note here: package doc of math/rand states:

The default Source is safe for concurrent use by multiple goroutines.

So the default source is slower than a Source that may be obtained by rand.NewSource(), because the default source has to provide safety under concurrent access / use, while rand.NewSource() does not offer this (and thus the Source returned by it is more likely to be faster).

7. Utilizing strings.Builder

All previous solutions return a string whose content is first built in a slice ([]rune in Genesis, and []byte in subsequent solutions), and then converted to string. This final conversion has to make a copy of the slice's content, because string values are immutable, and if the conversion would not make a copy, it could not be guaranteed that the string's content is not modified via its original slice. For details, see How to convert utf8 string to []byte? and golang: []byte(string) vs []byte(*string).

Go 1.10 introduced strings.Builder. strings.Builder is a new type we can use to build contents of a string similar to bytes.Buffer. Internally it uses a []byte to build the content, and when we're done, we can obtain the final string value using its Builder.String() method. But what's cool in it is that it does this without performing the copy we just talked about above. It dares to do so because the byte slice used to build the string's content is not exposed, so it is guaranteed that no one can modify it unintentionally or maliciously to alter the produced "immutable" string.

So our next idea is to not build the random string in a slice, but with the help of a strings.Builder, so once we're done, we can obtain and return the result without having to make a copy of it. This may help in terms of speed, and it will definitely help in terms of memory usage and allocations.

func RandStringBytesMaskImprSrcSB(n int) string {
    sb := strings.Builder{}
    sb.Grow(n)
    // A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
    for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
        if remain == 0 {
            cache, remain = src.Int63(), letterIdxMax
        }
        if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
            sb.WriteByte(letterBytes[idx])
            i--
        }
        cache >>= letterIdxBits
        remain--
    }

    return sb.String()
}

Do note that after creating a new strings.Buidler, we called its Builder.Grow() method, making sure it allocates a big-enough internal slice (to avoid reallocations as we add the random letters).

8. "Mimicing" strings.Builder with package unsafe

strings.Builder builds the string in an internal []byte, the same as we did ourselves. So basically doing it via a strings.Builder has some overhead, the only thing we switched to strings.Builder for is to avoid the final copying of the slice.

strings.Builder avoids the final copy by using package unsafe:

// String returns the accumulated string.
func (b *Builder) String() string {
    return *(*string)(unsafe.Pointer(&b.buf))
}

The thing is, we can also do this ourselves, too. So the idea here is to switch back to building the random string in a []byte, but when we're done, don't convert it to string to return, but do an unsafe conversion: obtain a string which points to our byte slice as the string data.

This is how it can be done:

func RandStringBytesMaskImprSrcUnsafe(n int) string {
    b := make([]byte, n)
    // A src.Int63() generates 63 random bits, enough for letterIdxMax characters!
    for i, cache, remain := n-1, src.Int63(), letterIdxMax; i >= 0; {
        if remain == 0 {
            cache, remain = src.Int63(), letterIdxMax
        }
        if idx := int(cache & letterIdxMask); idx < len(letterBytes) {
            b[i] = letterBytes[idx]
            i--
        }
        cache >>= letterIdxBits
        remain--
    }

    return *(*string)(unsafe.Pointer(&b))
}

(9. Using rand.Read())

Go 1.7 added a rand.Read() function and a Rand.Read() method. We should be tempted to use these to read as many bytes as we need in one step, in order to achieve better performance.

There is one small "problem" with this: how many bytes do we need? We could say: as many as the number of output letters. We would think this is an upper estimation, as a letter index uses less than 8 bits (1 byte). But at this point we are already doing worse (as getting the random bits is the "hard part"), and we're getting more than needed.

Also note that to maintain equal distribution of all letter indices, there might be some "garbage" random data that we won't be able to use, so we would end up skipping some data, and thus end up short when we go through all the byte slice. We would need to further get more random bytes, "recursively". And now we're even losing the "single call to rand package" advantage...

We could "somewhat" optimize the usage of the random data we acquire from math.Rand(). We may estimate how many bytes (bits) we'll need. 1 letter requires letterIdxBits bits, and we need n letters, so we need n * letterIdxBits / 8.0 bytes rounding up. We can calculate the probability of a random index not being usable (see above), so we could request more that will "more likely" be enough (if it turns out it's not, we repeat the process). We can process the byte slice as a "bit stream" for example, for which we have a nice 3rd party lib: github.com/icza/bitio (disclosure: I'm the author).

But Benchmark code still shows we're not winning. Why is it so?

The answer to the last question is because rand.Read() uses a loop and keeps calling Source.Int63() until it fills the passed slice. Exactly what the RandStringBytesMaskImprSrc() solution does, without the intermediate buffer, and without the added complexity. That's why RandStringBytesMaskImprSrc() remains on the throne. Yes, RandStringBytesMaskImprSrc() uses an unsynchronized rand.Source unlike rand.Read(). But the reasoning still applies; and which is proven if we use Rand.Read() instead of rand.Read() (the former is also unsynchronzed).

II. Benchmark

All right, it's time for benchmarking the different solutions.

Moment of truth:

BenchmarkRunes-4                     2000000    723 ns/op   96 B/op   2 allocs/op
BenchmarkBytes-4                     3000000    550 ns/op   32 B/op   2 allocs/op
BenchmarkBytesRmndr-4                3000000    438 ns/op   32 B/op   2 allocs/op
BenchmarkBytesMask-4                 3000000    534 ns/op   32 B/op   2 allocs/op
BenchmarkBytesMaskImpr-4            10000000    176 ns/op   32 B/op   2 allocs/op
BenchmarkBytesMaskImprSrc-4         10000000    139 ns/op   32 B/op   2 allocs/op
BenchmarkBytesMaskImprSrcSB-4       10000000    134 ns/op   16 B/op   1 allocs/op
BenchmarkBytesMaskImprSrcUnsafe-4   10000000    115 ns/op   16 B/op   1 allocs/op

Just by switching from runes to bytes, we immediately have 24% performance gain, and memory requirement drops to one third.

Getting rid of rand.Intn() and using rand.Int63() instead gives another 20% boost.

Masking (and repeating in case of big indices) slows down a little (due to repetition calls): -22%...

But when we make use of all (or most) of the 63 random bits (10 indices from one rand.Int63() call): that speeds up big time: 3 times.

If we settle with a (non-default, new) rand.Source instead of rand.Rand, we again gain 21%.

If we utilize strings.Builder, we gain a tiny 3.5% in speed, but we also achieved 50% reduction in memory usage and allocations! That's nice!

Finally if we dare to use package unsafe instead of strings.Builder, we again gain a nice 14%.

Comparing the final to the initial solution: RandStringBytesMaskImprSrcUnsafe() is 6.3 times faster than RandStringRunes(), uses one sixth memory and half as few allocations. Mission accomplished.

When we apply local url, ErrorDocument directive expect the full path from DocumentRoot. There fore,

 ErrorDocument 404 /yourfoldernames/errors/404.html

Richard's answer is correct. Alternatively you can also create a MappingJsonFactory (in org.codehaus.jackson.map) which knows where to find ObjectMapper. The error you got was because the regular JsonFactory (from core package) has no dependency to ObjectMapper (which is in the mapper package).

But usually you just use ObjectMapper and do not worry about JsonParser or other low level components -- they will just be needed if you want to data-bind parts of stream, or do low-level handling.

You missed single quote sign:

SELECT * 
FROM TABLENAME 
WHERE DateTime >= '12/04/2011 12:00:00 AM' AND DateTime <= '25/05/2011 3:53:04 AM'

Also, it is recommended to use ISO8601 format YYYY-MM-DDThh:mm:ss.nnn[ Z ], as this one will not depend on your server's local culture.

SELECT *
FROM TABLENAME 
WHERE 
    DateTime >= '2011-04-12T00:00:00.000' AND 
    DateTime <= '2011-05-25T03:53:04.000'

Like Maiasaura, I prefer ggplot2. The transparent reference manual is one of the reasons. However, this is one quick way to get it done.

require(ggplot2)
data(diamonds)
qplot(carat, price, data = diamonds, colour = color)
# example taken from Hadley's ggplot2 book

And cause someone famous said, plot related posts are not complete without the plot, here's the result:

Here's a couple of references: qplot.R example, note basically this uses the same diamond dataset I use, but crops the data before to get better performance.

http://ggplot2.org/book/ the manual: http://docs.ggplot2.org/current/

I agree it is generally preferable to use an Array for this.

However, this can also be accomplished in JavaScript by simply adding properties to the current scope (the global scope, if top-level code; the function scope, if within a function) by simply using this – which always refers to the current scope.

for (var i = 0; i < coords.length; ++i) {
    this["marker"+i] = "some stuff";
}

You can later retrieve the stored values (if you are within the same scope as when they were set):

var foo = this.marker0;
console.log(foo); // "some stuff"

This slightly odd feature of JavaScript is rarely used (with good reason), but in certain situations it can be useful.

for .. in statements expect you to use a type that has an iterator defined. A simple int type does not have an iterator.

Hello there if you are using adapter there might be a chance.
All you need to know when you used any dialog in adapter,getContext(),context or activity won't work sometime.

Here is the trick I used v.getRootView().getContext() where v is the view object you are referencing.
Eg.

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                new DatePickerDialog(v.getRootView().getContext(), date, myCalendar
                        .get(Calendar.YEAR), myCalendar.get(Calendar.MONTH),
                        myCalendar.get(Calendar.DAY_OF_MONTH)).show();
            }
        });  
If you are getting this problem because of alert dialog.
Refer [here][1] But it is same concept.


  [1]: https://stackoverflow.com/questions/6367771/displaying-alertdialog-inside-a-custom-listadapter-class

use your jsonsimpleobject direclty like below

JSONObject unitsObj = parser.parse(new FileReader("file.json");

If anyone is searching for useState() hooks update for object

- Through Input

        const [state, setState] = useState({ fName: "", lName: "" });
        const handleChange = e => {
            const { name, value } = e.target;
            setState(prevState => ({
                ...prevState,
                [name]: value
            }));
        };

        <input
            value={state.fName}
            type="text"
            onChange={handleChange}
            name="fName"
        />
        <input
            value={state.lName}
            type="text"
            onChange={handleChange}
            name="lName"
        />
   ***************************

 - Through onSubmit or button click
    
        setState(prevState => ({
            ...prevState,
            fName: 'your updated value here'
         }));

if you are running on Apple MacBook OSX then:

1. Stop your MySQL server (if it is already running).
2. Find your MySQL configuration file, my.cnf. (For me it was placed @ /Applications/XAMPP/xamppfiles/etc. You can just search if you can't find it).
3. Open my.cnf file in any text editor.
4. Add "skip-grant-tables" (without quotes) at the end of [mysqld] section and save the file.
5. Now start your MySQL server. It'll start with skip-grant-tables option.

Do what you want now!!

PS: Please remove skip-grant-tables from my.cnf file once you are done with whatsoever you want to do ELSE MySQL server will always run without access grants.

If you are creating an array whose main feature is it's length, rather than the value of each index, defining an array as var a=Array(length); is appropriate.

eg-

String.prototype.repeat= function(n){
    n= n || 1;
    return Array(n+1).join(this);
}

A "release" is the final build for a version which does not change.

A "snapshot" is a build which can be replaced by another build which has the same name. It implies that the build could change at any time and is still under active development.

You have different artifacts for different builds based on the same code. E.g. you might have one with debugging and one without. One for Java 5.0 and one for Java 6. Generally its simpler to have one build which does everything you need. ;)

Incrementing dates can be accomplished using timedelta objects:

import datetime

datetime.datetime.now() + datetime.timedelta(days=1)

Look up timedelta objects in the Python docs: http://docs.python.org/library/datetime.html

Use a background worker and read only a limited number of lines. Read more only when the user scrolls.

And try to never use ReadToEnd(). It's one of the functions that you think "why did they make it?"; it's a script kiddies' helper that goes fine with small things, but as you see, it sucks for large files...

Those guys telling you to use StringBuilder need to read the MSDN more often:

Performance Considerations
The Concat and AppendFormat methods both concatenate new data to an existing String or StringBuilder object. A String object concatenation operation always creates a new object from the existing string and the new data. A StringBuilder object maintains a buffer to accommodate the concatenation of new data. New data is appended to the end of the buffer if room is available; otherwise, a new, larger buffer is allocated, data from the original buffer is copied to the new buffer, then the new data is appended to the new buffer. The performance of a concatenation operation for a String or StringBuilder object depends on how often a memory allocation occurs.
A String concatenation operation always allocates memory, whereas a StringBuilder concatenation operation only allocates memory if the StringBuilder object buffer is too small to accommodate the new data. Consequently, the String class is preferable for a concatenation operation if a fixed number of String objects are concatenated. In that case, the individual concatenation operations might even be combined into a single operation by the compiler. A StringBuilder object is preferable for a concatenation operation if an arbitrary number of strings are concatenated; for example, if a loop concatenates a random number of strings of user input.

That means huge allocation of memory, what becomes large use of swap files system, that simulates sections of your hard disk drive to act like the RAM memory, but a hard disk drive is very slow.

The StringBuilder option looks fine for who use the system as a mono-user, but when you have two or more users reading large files at the same time, you have a problem.

Add bottom:100% to your #menu:hover ul li:hover ul rule

Demo 1

#menu:hover ul li:hover ul {
    position: absolute;
    margin-top: 1px;
    font: 10px;
    bottom: 100%; /* added this attribute */
}

Or better yet to prevent the submenus from having the same effect, just add this rule

Demo 2

#menu>ul>li:hover>ul { 
    bottom:100%;
}

Demo 3

source: http://jsfiddle.net/W5FWW/4/

And to get back the border you can add the following attribute

#menu>ul>li:hover>ul { 
    bottom:100%;
    border-bottom: 1px solid transparent
}

Uri is serializable, so you can save strings and convert it back when loading

when saving

String str = myUri.toString();

and when loading

Uri myUri = Uri.parse(str);

You could have the active class be dependent upon a boolean data value:

<th 
  class="initial " 
  v-on="click: myFilter"
  v-class="{active: isActive}">
  <span class="wkday">M</span>
</th>

new Vue({
  el: '#my-container',

  data: {
    isActive: false
  },

  methods: {
    myFilter: function() {
      this.isActive = !this.isActive;
      // some code to filter users
    }
  }
})

A shorter version of the accepted answer using Guava:

.getMap(Iterables.toArray(locations, WorldLocation.class));

can be shortened further by statically importing toArray:

import static com.google.common.collect.toArray;
// ...

    .getMap(toArray(locations, WorldLocation.class));

'data' should be a stringified JavaScript object:

data: JSON.stringify({ "userName": userName, "password" : password })

To send your formData, pass it to stringify:

data: JSON.stringify(formData)

Some servers also require the application/json content type:

contentType: 'application/json'

There's also a more detailed answer to a similar question here: Jquery Ajax Posting json to webservice

Distances to the source of iBeacon-formatted advertisement packets are estimated from the signal path attenuation calculated by comparing the measured received signal strength to the claimed transmit power which the transmitter is supposed to encode in the advertising data.

A path loss based scheme like this is only approximate and is subject to variation with things like antenna angles, intervening objects, and presumably a noisy RF environment. In comparison, systems really designed for distance measurement (GPS, Radar, etc) rely on precise measurements of propagation time, in same cases even examining the phase of the signal.

As Jiaru points out, 160 ft is probably beyond the intended range, but that doesn't necessarily mean that a packet will never get through, only that one shouldn't expect it to work at that distance.

this happened to me when using JUnit + rest assured + hamcrest, in this case, dont add junit to build path, if you have the maven project, this resolved me, below is the pom.xml

<dependencies>

    <dependency>
        <groupId>io.rest-assured</groupId>
        <artifactId>rest-assured</artifactId>
        <version>3.0.0</version>
    </dependency>

    <dependency>
        <groupId>org.hamcrest</groupId>
        <artifactId>hamcrest-all</artifactId>
        <version>1.3</version>
    </dependency>


    <!-- https://mvnrepository.com/artifact/junit/junit -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.12</version>

    </dependency>


</dependencies>

As opposed to find() which can return 1 or more documents, findById() can only return 0 or 1 document. Document(s) can be thought of as record(s).

match_var = a==b

that should more than suffice

you cant use a - in a variable name as it thinks that is match (minus) var

match=1
var=2

print match-var  #prints -1

In order to switch between different views, you could directly change the window.location (using the $location service!) in index.html file

<div ng-controller="Cntrl">
        <div ng-click="changeView('edit')">
            edit
        </div>
        <div ng-click="changeView('preview')">
            preview
        </div>
</div>

Controller.js

function Cntrl ($scope,$location) {
        $scope.changeView = function(view){
            $location.path(view); // path not hash
        }
    }

and configure the router to switch to different partials based on the location ( as shown here https://github.com/angular/angular-seed/blob/master/app/app.js ). This would have the benefit of history as well as using ng-view.

Alternatively, you use ng-include with different partials and then use a ng-switch as shown in here ( https://github.com/ganarajpr/Angular-UI-Components/blob/master/index.html )

You can use upstream headers (named starting with $http_) and additional custom headers. For example:

add_header X-Upstream-01 $http_x_upstream_01;
add_header X-Hdr-01  txt01;

next, go to console and make request with user's header:

curl -H "X-Upstream-01: HEADER1" -I http://localhost:11443/

the response contains X-Hdr-01, seted by server and X-Upstream-01, seted by client:

HTTP/1.1 200 OK
Server: nginx/1.8.0
Date: Mon, 30 Nov 2015 23:54:30 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
X-Hdr-01: txt01
X-Upstream-01: HEADER1

I had to apply 100% to both html and body.

I did this:

var dateToday = new Date();
var yrRange = dateToday.getFullYear() + ":" + (dateToday.getFullYear() + 50);
and then
yearRange : yrRange

where 50 is the range from current year.

In the context of services:

http://en.wikipedia.org/wiki/Service_Granularity_Principle

By definition a coarse-grained service operation has broader scope than a fine-grained service, although the terms are relative. The former typically requires increased design complexity but can reduce the number of calls required to complete a task.

A fine grained service interface is about the same like chatty interface.

$sql = "INSERT INTO table_name( field1, field2 )  VALUES ('foo','bar') 
        RETURNING ID INTO :mylastid";
$stmt = oci_parse($db, $sql);
oci_bind_by_name($stmt, "mylastid", $last_id, 8, SQLT_INT);
oci_execute($stmt);

echo "last inserted id is:".$last_id;

Tip: you have to use your id column name in {your_id_col_name} below...

"RETURNING {your_id_col_name} INTO :mylastid"

The way that I usually go about it is using a temporary table. It's probably not computationally efficient but it seems to work ok! Here i am duplicating record 99 in its entirety, creating record 100.

CREATE TEMPORARY TABLE tmp SELECT * FROM invoices WHERE id = 99;

UPDATE tmp SET id=100 WHERE id = 99;

INSERT INTO invoices SELECT * FROM tmp WHERE id = 100;

Hope that works ok for you!

With these types of complex programs, it's better to let Perl generate the Perl code for you:

$ perl -MO=Deparse -pe'exit if $.>2'

Which will gladly tell you the answer,

LINE: while (defined($_ = <ARGV>)) {
    exit if $. > 2;
}
continue {
    die "-p destination: $!\n" unless print $_;
}

Alternatively, you can simply run it as such from the command line,

$ perl -pe'exit if$.>2' file.txt

Have a look at monit (http://mmonit.com/monit/). It handles start, stop and restart of your script and can do health checks plus restarts if necessary.

Or do a simple script:

while true
do
/your/script
sleep 1
done

If you know the settings in advance you can define it in a single statement:

var defaultsettings = {
                        ajaxsettings : { "ak1" : "v1", "ak2" : "v2", etc. },
                        uisettings : { "ui1" : "v1", "ui22" : "v2", etc }
                      };

If you don't know the values in advance you can just define the top level object and then add properties:

var defaultsettings = { };
defaultsettings["ajaxsettings"] = {};
defaultsettings["ajaxsettings"]["somekey"] = "some value";

Or half-way between the two, define the top level with nested empty objects as properties and then add properties to those nested objects:

var defaultsettings = {
                        ajaxsettings : {  },
                        uisettings : {  }
                      };

defaultsettings["ajaxsettings"]["somekey"] = "some value";
defaultsettings["uisettings"]["somekey"] = "some value";

You can nest as deep as you like using the above techniques, and anywhere that you have a string literal in the square brackets you can use a variable:

var keyname = "ajaxsettings";
var defaultsettings = {};
defaultsettings[keyname] = {};
defaultsettings[keyname]["some key"] = "some value";

Note that you can not use variables for key names in the { } literal syntax.

HTML

The plain HTML way is to put it in a <form> wherein you specify the desired target URL in the action attribute.

<form action="https://google.com">
    <input type="submit" value="Go to Google" />
</form>

If necessary, set CSS display: inline; on the form to keep it in the flow with the surrounding text. Instead of <input type="submit"> in above example, you can also use <button type="submit">. The only difference is that the <button> element allows children.

You'd intuitively expect to be able to use <button href="https://google.com"> analogous with the <a> element, but unfortunately no, this attribute does not exist according to HTML specification.

CSS

If CSS is allowed, simply use an <a> which you style to look like a button using among others the appearance property (it's only not supported in Internet Explorer).

<a href="https://google.com" class="button">Go to Google</a>

a.button {
    -webkit-appearance: button;
    -moz-appearance: button;
    appearance: button;

    text-decoration: none;
    color: initial;
}

Or pick one of those many CSS libraries like Bootstrap.

<a href="https://google.com" class="btn btn-primary">Go to Google</a>

JavaScript

If JavaScript is allowed, set the window.location.href.

<input type="button" onclick="location.href='https://google.com';" value="Go to Google" />

Instead of <input type="button"> in above example, you can also use <button>. The only difference is that the <button> element allows children.

@Maxim
try this...

pom.xml

 <groupId>org.opensource</groupId>
 <artifactId>base</artifactId>
 <version>1.0.0.SNAPSHOT</version>

  ..............
<properties>
    <my.version>4.0.8.8</my.version>
</properties>

<build>
    <finalName>my-base-project</finalName>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-install-plugin</artifactId>
            <version>2.3.1</version>
            <executions>
                <execution>
                    <goals>
                        <goal>install-file</goal>
                    </goals>
                    <phase>install</phase>
                    <configuration>
                        <file>${project.build.finalName}.${project.packaging}</file>
                        <generatePom>false</generatePom>
                        <pomFile>pom.xml</pomFile>
                        <version>${my.version}</version>
                    </configuration>
                </execution>
            </executions>
        </plugin>
</plugins>
</build>

Commnad mvn clean install

Output

[INFO] --- maven-jar-plugin:2.3.1:jar (default-jar) @ base ---
[INFO] Building jar: D:\dev\project\base\target\my-base-project.jar
[INFO]
[INFO] --- maven-install-plugin:2.3.1:install (default-install) @ base ---
[INFO] Installing D:\dev\project\base\target\my-base-project.jar to H:\dev\.m2\repository\org\opensource\base\1.0.0.SNAPSHOT\base-1.0.0.SNAPSHOT.jar
[INFO] Installing D:\dev\project\base\pom.xml to H:\dev\.m2\repository\org\opensource\base\1.0.0.SNAPSHOT\base-1.0.0.SNAPSHOT.pom
[INFO]
[INFO] --- maven-install-plugin:2.3.1:install-file (default) @ base ---
[INFO] Installing D:\dev\project\base\my-base-project.jar to H:\dev\.m2\repository\org\opensource\base\4.0.8.8\base-4.0.8.8.jar
[INFO] Installing D:\dev\project\base\pom.xml to H:\dev\.m2\repository\org\opensource\base\4.0.8.8\base-4.0.8.8.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------

Reference

      var data = [];

      data  = {{ jdata|safe }}; //parse through js
      var i = 0 ;
      for (i=0;i<data.length;i++){
         data[i] = data[i].value;
      }

Late answer but might be useful useful for someone else

If neither DBCC ShrinkDatabase/ShrinkFile or SSMS (Tasks/Shrink/Database) doesn’t help, there are tools from Quest and ApexSQL that can get the job done, and even schedule periodic shrinking if you need it.

I’ve used the latter one in free trial to do this some time ago, by following short description at the end of this article:

https://solutioncenter.apexsql.com/sql-server-database-shrink-how-and-when-to-schedule-and-perform-shrinking-of-database-files/

All you need to do is install ApexSQL Backup, click "Shrink database" button in the main ribbon, select database in the window that will pop-up, and click "Finish".

If you do a straight git pull then you will either be 'fast-forwarded' or merge an unknown number of commits from the remote repository. This happens as one action though, so the last commit that you were at immediately before the pull will be the last entry in the reflog and can be accessed as HEAD@{1}. This means that you can do:

git diff HEAD@{1}

However, I would strongly recommend that if this is something you find yourself doing a lot then you should consider just doing a git fetch and examining the fetched branch before manually merging or rebasing onto it. E.g. if you're on master and were going to pull in origin/master:

git fetch

git log HEAD..origin/master

 # looks good, lets merge

git merge origin/master

In my case the servlet name defined in the web.xml was not same as the sevlet name in the servlet mapping tag. I have corrected this and the WAR was deployed successfully.

If you are converting a varchar to int make sure you do not have decimal places.

For example, if you are converting a varchar field with value (12345.0) to an integer then you get this conversion error. In my case I had all my fields with .0 as ending so I used the following statement to globally fix the problem.

CONVERT(int, replace(FIELD_NAME,'.0',''))

It's the line after that match that you're interesting in, right? In sed, that could be accomplished like so:

sed -n '/ABC/{n;p}' infile

Alternatively, grep's A option might be what you're looking for.

-A NUM, Print NUM lines of trailing context after matching lines.

For example, given the following input file:

foo
bar
baz
bash
bongo

You could use the following:

$ grep -A 1 "bar" file
bar
baz
$ sed -n '/bar/{n;p}' file
baz

Hope that helps.

try this can you better fell comparing to another codes.

using namespace std;
int main() {
    int a[5]={4,6,3,5,9};
    for(int i=4;i>=0;i--) {
        cout<<"\n"<<a[i];
    }
}

I'm not sure if this is what you ask, but you can check gradle version of your project here in android studio:

(left pane must be in project view, not android for this path) app->gradle->wrapper->gradle-wrapper.properties

it has a line like this, indicating the gradle version:

distributionUrl=http\://services.gradle.org/distributions/gradle-1.8-all.zip

There is also a table at the end of this page that shows gradle and gradle plug-in versions supported by each android studio version. (you can check your android studio by checking help->about as you may already know)

You don't lose the delimiters, the cells are separated by tabs (\t) and rows by newlines (\n) which might not be visible in the form. Try it yourself: copy content from Excel to Notepad, and you'll see your cells nicely lined up. It's easy then to split the fields by tabs and replace them with something else, this way you can build even a table from them. Here's a example using jQuery:

var data = $('input[name=excel_data]').val();
var rows = data.split("\n");

var table = $('<table />');

for(var y in rows) {
    var cells = rows[y].split("\t");
    var row = $('<tr />');
    for(var x in cells) {
        row.append('<td>'+cells[x]+'</td>');
    }
    table.append(row);
}

// Insert into DOM
$('#excel_table').html(table);

So in essence, this script creates an HTML table from pasted Excel data.

Just posting my answer in case it helps anyone as I spent an hour to figure it out :)

First of all two very helpful link related to google api and fetching data from any of google services:

https://developers.google.com/analytics/devguides/config/mgmt/v3/quickstart/web-php

https://developers.google.com/identity/protocols/OAuth2WebServer

Furthermore, when using the following method:

$client->setAccessToken($token)

The $token needs to be the full object returned by the google when making authorization request, not the only access_token which you get inside the object so if you get the object lets say:

{"access_token":"xyz","token_type":"Bearer","expires_in":3600,"refresh_token":"mno","created":1532363626}

then you need to give:

$client->setAccessToken('{"access_token":"xyz","token_type":"Bearer","expires_in":3600,"refresh_token":"mno","created":1532363626}')

Not

$client->setAccessToken('xyz')

And then even if your access_token is expired, google will refresh it itself by using the refresh_token in the access_token object.

In your mysql command line: SET explicit_defaults_for_timestamp=1

This would be easier to do with flexbox. Using flexbox will let you not to specify the height of your content and can adjust automatically on the height it contains.

DEMO

here's the gist of the demo

.container{

  display: flex;
  height: 100%;
  justify-content: center;
  align-items: center;

}

html

<div class="container">
  <div class='content'> //you can size this anyway you want
    put anything you want here,
  </div>
</div>

Another example is available here:

Sending a JSON to server and retrieving a JSON in return, without JQuery

Which is the same as jans answer, but also checks the servers response by setting a onreadystatechange callback on the XMLHttpRequest.

I got this by not having the project set as startup, as indicated by another answer. My contribution to this - when doing Add-Migrations and Update-Database, specify the startup project as part of the command in Nuget Package Manager Console (do not include the '[' or ']' characters, that's just to show you that you need to change the text located there to your project name):

1. Enable-Migrations
2. Add-Migrations -StartupProject [your project name that contains the data context class]
3. Update-Database -StartupProject [same project name as above]

That should do it.

You can also run conditional statements on the Postion() which can be really helpful in many scenarios.

for eg.

 <xsl:if test="(position( )) = 1">
     //Show header only once
    </xsl:if>

Use the headers variable in success and error callbacks

From documentation.

$http.get('/someUrl').
  success(function(data, status, headers, config) {
    // this callback will be called asynchronously
    // when the response is available
  })
  .error(function(data, status, headers, config) {
    // called asynchronously if an error occurs
    // or server returns response with an error status.
  });

If you are on the same domain, you should be able to retrieve the response headers back. If cross-domain, you will need to add Access-Control-Expose-Headers header on the server.

Access-Control-Expose-Headers: content-type, cache, ...

You can use the shift keyword (operator?) to iterate through them. Example:

#!/bin/bash
function print()
{
    while [ $# -gt 0 ]
    do
        echo $1;
        shift 1;
    done
}
print $*;

First of all, it's not very tidy to mix pylab and pyplot code. What's more, pyplot style is preferred over using pylab.

Here is a slightly cleaned up code, using only pyplot functions:

from matplotlib import pyplot

a = [ pow(10,i) for i in range(10) ]

pyplot.subplot(2,1,1)
pyplot.plot(a, color='blue', lw=2)
pyplot.yscale('log')
pyplot.show()

The relevant function is pyplot.yscale(). If you use the object-oriented version, replace it by the method Axes.set_yscale(). Remember that you can also change the scale of X axis, using pyplot.xscale() (or Axes.set_xscale()).

Check my question What is the difference between ‘log’ and ‘symlog’? to see a few examples of the graph scales that matplotlib offers.

Reading the R language documentation, as.integer has more to do with how the number is stored than if it is practically equivalent to an integer. is.integer tests if the number is declared as an integer. You can declare an integer by putting a L after it.

> is.integer(66L)
[1] TRUE
> is.integer(66)
[1] FALSE

Also functions like round will return a declared integer, which is what you are doing with x==round(x). The problem with this approach is what you consider to be practically an integer. The example uses less precision for testing equivalence.

> is.wholenumber(1+2^-50)
[1] TRUE
> check.integer(1+2^-50)
[1] FALSE

So depending on your application you could get into trouble that way.

Some of the answers have already provided various approaches related to getting rid of the create extension and comment on extensions. For me, the following command line seemed to work and be the simplest approach to solve the problem:

cat /tmp/backup.sql.gz | gunzip - | \
  grep -v -E '(CREATE\ EXTENSION|COMMENT\ ON)' |  \
    psql --set ON_ERROR_STOP=on -U db_user -h localhost my_db

Some notes

• The first line is just uncompressing my backup and you may need to adjust accordingly.
• The second line is using grep to get rid of offending lines.
• the third line is my psql command; you may need to adjust as you normally would use psql for restore.

1) The circles are Entities/POJOs/Beans

2) deg is an abbreviation for degree as in graphs (number of edges)

PK=Primary key, FK=Foreign key

Note the contradiction between the degree and the name of the side. Many corresponds to degree=1 while One corresponds to degree >1.

Your code is valid (with one exception). It is required to have code between BEGIN and END.

Replace

--do some work

with

print ''

I think maybe you saw "END and not "AND"

1) Add the following line to /etc/security/limits.conf

webuser hard nofile 64000

then login as webuser

su - webuser

2) Edit following two files for webuser

append .bashrc and .bash_profile file by running

echo "ulimit -n 64000" >> .bashrc ; echo "ulimit -n 64000" >> .bash_profile

3) Log out, then log back in and verify that the changes have been made correctly:

$ ulimit -a | grep open
open files                      (-n) 64000

Thats it and them boom, boom boom.

I doubt I'd use it in a mission-critical system, but Derby has always been very interesting to me.

Definitive Article

Sending credentials

The only practical way to send credentials 100% securely is by using SSL. Using JavaScript to hash the password is not safe. Common pitfalls for client-side password hashing:

• If the connection between the client and server is unencrypted, everything you do is vulnerable to man-in-the-middle attacks. An attacker could replace the incoming javascript to break the hashing or send all credentials to their server, they could listen to client responses and impersonate the users perfectly, etc. etc. SSL with trusted Certificate Authorities is designed to prevent MitM attacks.
• The hashed password received by the server is less secure if you don't do additional, redundant work on the server.

There's another secure method called SRP, but it's patented (although it is freely licensed) and there are few good implementations available.

Storing passwords

Don't ever store passwords as plaintext in the database. Not even if you don't care about the security of your own site. Assume that some of your users will reuse the password of their online bank account. So, store the hashed password, and throw away the original. And make sure the password doesn't show up in access logs or application logs. OWASP recommends the use of Argon2 as your first choice for new applications. If this is not available, PBKDF2 or scrypt should be used instead. And finally if none of the above are available, use bcrypt.

Hashes by themselves are also insecure. For instance, identical passwords mean identical hashes--this makes hash lookup tables an effective way of cracking lots of passwords at once. Instead, store the salted hash. A salt is a string appended to the password prior to hashing - use a different (random) salt per user. The salt is a public value, so you can store them with the hash in the database. See here for more on this.

This means that you can't send the user their forgotten passwords (because you only have the hash). Don't reset the user's password unless you have authenticated the user (users must prove that they are able to read emails sent to the stored (and validated) email address.)

Security questions

Security questions are insecure - avoid using them. Why? Anything a security question does, a password does better. Read PART III: Using Secret Questions in @Jens Roland answer here in this wiki.

Session cookies

After the user logs in, the server sends the user a session cookie. The server can retrieve the username or id from the cookie, but nobody else can generate such a cookie (TODO explain mechanisms).

Cookies can be hijacked: they are only as secure as the rest of the client's machine and other communications. They can be read from disk, sniffed in network traffic, lifted by a cross-site scripting attack, phished from a poisoned DNS so the client sends their cookies to the wrong servers. Don't send persistent cookies. Cookies should expire at the end of the client session (browser close or leaving your domain).

If you want to autologin your users, you can set a persistent cookie, but it should be distinct from a full-session cookie. You can set an additional flag that the user has auto-logged in, and needs to log in for real for sensitive operations. This is popular with shopping sites that want to provide you with a seamless, personalized shopping experience but still protect your financial details. For example, when you return to visit Amazon, they show you a page that looks like you're logged in, but when you go to place an order (or change your shipping address, credit card etc.), they ask you to confirm your password.

Financial websites such as banks and credit cards, on the other hand, only have sensitive data and should not allow auto-login or a low-security mode.

List of external resources

• Dos and Don'ts of Client Authentication on the Web (PDF)
  21 page academic article with many great tips.
• Ask YC: Best Practices for User Authentication
  Forum discussion on the subject
• You're Probably Storing Passwords Incorrectly
  Introductory article about storing passwords
• Discussion: Coding Horror: You're Probably Storing Passwords Incorrectly
  Forum discussion about a Coding Horror article.
• Never store passwords in a database!
  Another warning about storing passwords in the database.
• Password cracking
  Wikipedia article on weaknesses of several password hashing schemes.
• Enough With The Rainbow Tables: What You Need To Know About Secure Password Schemes
  Discussion about rainbow tables and how to defend against them, and against other threads. Includes extensive discussion.

You can use the Server object in the System.Web namespace

Server.UrlEncode, Server.UrlDecode, Server.HtmlEncode, and Server.HtmlDecode.

Edit: poster added that this was a windows application and not a web one as one would believe. The items listed above would be available from the HttpUtility class inside System.Web which must be added as a reference to the project.

1. Open Oracle VM VirtualBox Manager
2. Select the VM used by Docker
3. Click Settings -> Network
4. Adapter 1 should (default?) be "Attached to: NAT"
5. Click Advanced -> Port Forwarding
6. Add rule: Protocol TCP, Host Port 8080, Guest Port 8080 (leave Host IP and Guest IP empty)
7. Guest is your docker container and Host is your machine

You should now be able to browse to your container via localhost:8080 and your-internal-ip:8080.

For your purpose, I'd prefer using position instead of floating:

http://jsfiddle.net/aas7w0tw/1/

Use a parent with relative position:

position: relative;

And children in absolute position:

position: absolute;

In bonus, you can better drive the dimensions of your components.

Here is an iterative solution using object-scan. The advantage is that you can easily do other processing in the filter function and specify the paths in a more readable format. There is a trade-off in introducing a dependency though, so it really depends on your use case.

// const objectScan = require('object-scan');

const search = (haystack, k, v) => objectScan([`list[*].${k}`], {
  rtn: 'parent',
  filterFn: ({ value }) => value === v
})(haystack);

const obj = { list: [ { name: 'my Name', id: 12, type: 'car owner' }, { name: 'my Name2', id: 13, type: 'car owner2' }, { name: 'my Name4', id: 14, type: 'car owner3' }, { name: 'my Name4', id: 15, type: 'car owner5' } ] };

console.log(search(obj, 'name', 'my Name'));
// => [ { name: 'my Name', id: 12, type: 'car owner' } ]

.as-console-wrapper {max-height: 100% !important; top: 0}

<script src="https://bundle.run/[email protected]"></script>

Disclaimer: I'm the author of object-scan

Instead of thinking of it as 'extracting', I like to think of it as 'isolating'. Once the desired bits are isolated, you can do what you will with them.

To isolate any set of bits, apply an AND mask.

If you want the last X bits of a value, there is a simple trick that can be used.

unsigned  mask;
mask = (1 << X) - 1;
lastXbits = value & mask;

If you want to isolate a run of X bits in the middle of 'value' starting at 'startBit' ...

unsigned  mask;
mask = ((1 << X) - 1) << startBit;
isolatedXbits = value & mask;

Hope this helps.

Meanwhile, all the values above will only restrict the values to integer, so i use

/^[1-9][0-9\.]{0,15}$/

to allow float values too.

I was able to bypass all the framework messages by making the property a string in my view model.

[Range(0, 15, ErrorMessage = "Can only be between 0 .. 15")]
[StringLength(2, ErrorMessage = "Max 2 digits")]
[Remote("PredictionOK", "Predict", ErrorMessage = "Prediction can only be a number in range 0 .. 15")]
public string HomeTeamPrediction { get; set; }

Then I need to do some conversion in my get method:

viewModel.HomeTeamPrediction = databaseModel.HomeTeamPrediction.ToString();

and post method:

databaseModel.HomeTeamPrediction = int.Parse(viewModel.HomeTeamPrediction);

This works best when using the range attribute, otherwise some additional validation would be needed to make sure the value is a number.

You can also specify the type of number by changing the numbers in the range to the correct type:

[Range(0, 10000000F, ErrorMessageResourceType = typeof(GauErrorMessages), ErrorMessageResourceName = nameof(GauErrorMessages.MoneyRange))]

In MySQL 5.6 using Drop user userid; does not work. Use: Drop user 'userid'@'localhost'; and/or Drop user 'userid'@'%';. In this way I was able to drop the user and recreate it.

Change this property and try this at design time:

FormBorderStyle = FormBorderStyle.FixedDialog;

Designer view before the change:

There is a package called timeout-decorator that you can use to time out any python function.

@timeout_decorator.timeout(5)
def mytest():
    print("Start")
    for i in range(1,10):
        time.sleep(1)
        print("{} seconds have passed".format(i))

It uses the signals approach that some answers here suggest. Alternatively, you can tell it to use multiprocessing instead of signals (e.g. if you are in a multi-thread environment).

from manual:

: [arguments] No effect; the command does nothing beyond expanding arguments and performing any specified redirections. A zero exit code is returned.

As this returns always zero therefore is is similar to be used as true

Check out this answer: What Is the Purpose of the `:' (colon) GNU Bash Builtin?

According to Apple documentation of NSDate compare:

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

- (NSComparisonResult)compare:(NSDate *)anotherDate

Parameters anotherDate

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

Return Value

If:

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

The receiver is later in time than anotherDate, NSOrderedDescending

The receiver is earlier in time than anotherDate, NSOrderedAscending

In other words:

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

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

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

See Apple Documentation about this one.

The Maven Help Plugin is somehow already proposing something for this:

• help:evaluate evaluates Maven expressions given by the user in an interactive mode.

Here is how you would invoke it on the command line to get the ${project.version}:

mvn org.apache.maven.plugins:maven-help-plugin:2.1.1:evaluate \
    -Dexpression=project.version

If you are using custom binding, please make sure that you are putting the same name for both custom binding (Server and Client)in config files

<bindings>
<customBinding>
 <binding name="BufferedHttpServerNoAuth" closeTimeout="00:10:00" openTimeout="00:10:00" receiveTimeout="00:10:00" sendTimeout="00:10:00">
          <gzipMessageEncoding innerMessageEncoding="textMessageEncoding" MaxArrayLength="10485760" MaxBytesPerRead="31457280" MaxStringContentLength="102400000" />
          <httpsTransport hostNameComparisonMode="StrongWildcard" manualAddressing="False" maxReceivedMessageSize="31457280" authenticationScheme="Anonymous" bypassProxyOnLocal="True" realm="" useDefaultWebProxy="False" />
</binding>
</customBinding>
</bindings>

the binding name "BufferedHttpServerNoAuth" should be same in both.

Hope this would help someone

there is only one faster way to check if the file exists and if you have permission to read it the way is using C language wish is faster and can be used also in any version in C++

solution: in C there is a library errno.h which has an external (global) integer variable called errno which contains a number that can be used to recognize the type of error

    #include <stdio.h>
    #include <stdbool.h>
    #include <errno.h>

    bool isFileExist(char fileName[]) {
        FILE *fp = fopen(fileName, "r");
        if (fp) {
            fclose(fp);
            return true;
        }
        return errno != ENOENT;
    }

    bool isFileCanBeRead(char fileName[]) {
        FILE *fp = fopen(fileName, "r");
        if (fp) {
            fclose(fp);
            return true;
        }
        return errno != ENOENT && errno != EPERM;
    }

For me this worked $ ? git branch -D -r origin/mybranch

Details

$ ? git branch -a | grep mybranch remotes/origin/mybranch

$ ? git branch -r | grep mybranch origin/mybranch

$ ? git branch develop * feature/pre-deployment

$ ? git push origin --delete mybranch error: unable to delete 'mybranch': remote ref does not exist error: failed to push some refs to '[email protected]:config/myrepo.git'

$ ? git branch -D -r origin/mybranch Deleted remote branch origin/mybranch (was 62c7421).

$ ? git branch -a | grep mybranch

$ ? git branch -r | grep mybranch

I saw this somewhere else. I am using 2016 Excel. What worked for me was to use YYYY Quarters (I was looking for quarterly data). So, I had the source data sorted as YYYY xQ. 2016 1Q, 2016 2Q, 2016 3Q, 2016, 4Q, 2017 1Q, 2017 2Q... You get the idea.

Lets say in scripts you want to run 2 commands with a single command:

"scripts":{
  "start":"any command",
  "singleCommandToRunTwoCommand":"some command here && npm start"
}

Now go to your terminal and run there npm run singleCommandToRunTwoCommand.

You can use the file_get_contents function to access remote files. See http://php.net/manual/en/function.file-get-contents.php for details.

Isn't the point of arrays to be efficient? If you're just iterating through values, I think a cursor on a temporary (or permanent) table makes more sense than seeking commas, no? Also cleaner. Lookup "mysql DECLARE CURSOR".

For random access a temporary table with numerically indexed primary key. Unfortunately the fastest access you'll get is a hash table, not true random access.

The best way to do this without more images :

public static void buttonEffect(View button){
    button.setOnTouchListener(new OnTouchListener() {

        public boolean onTouch(View v, MotionEvent event) {
            switch (event.getAction()) {
                case MotionEvent.ACTION_DOWN: {
                    v.getBackground().setColorFilter(0xe0f47521,PorterDuff.Mode.SRC_ATOP);
                    v.invalidate();
                    break;
                }
                case MotionEvent.ACTION_UP: {
                    v.getBackground().clearColorFilter();
                    v.invalidate();
                    break;
                }
            }
            return false;
        }
    });
}

If you use the JSON Serializer, you can simply store your object in string format as such

myHiddenText.value = JSON.stringify( myObject );

You can then get the value back with

myObject = JSON.parse( myHiddenText.value );

However, if you're not going to pass this value across page submits, it might be easier for you, and you'll save yourself a lot of serialization, if you just tuck it away as a global javascript variable.

If you grep the command that you are looking for with a pipe from ps aux, it will wrap the text automatically. I used a lot of the other answers on here, but sometimes if you are looking for something specific, it is nice to just use grep and you know that it will wrap lines.

For instance ps aux | grep ffmpeg .

I'm using Gradle plugin 3.0.1 and saw this error. Not sure what caused this but the solution that works for me is to stop the running Gradle daemon by ./gradlew --stop.

Probably you use Microsoft SQL Server which support Common Table Expressions (CTE) (see http://msdn.microsoft.com/en-us/library/ms190766.aspx) which are very friendly for query optimization. So I suggest you my favor construction:

WITH GetNumberOfPlans(Id,NumberOfPlans) AS (
    SELECT tableA.Id, COUNT(tableC.Id)
    FROM tableC
        RIGHT OUTER JOIN tableA ON tableC.tableAId = tableA.Id
    GROUP BY tableA.Id
),GetUserInformation(Id,Name,Owner,ImageUrl,
                     CompanyImageUrl,NumberOfUsers) AS (
    SELECT tableA.Id, tableA.Name, tableB.Username AS Owner, tableB.ImageUrl,
        tableB.CompanyImageUrl,COUNT(tableD.UserId),p.NumberOfPlans
    FROM tableA
        INNER JOIN tableB ON tableB.Id = tableA.Owner
        RIGHT OUTER JOIN tableD ON tableD.tableAId = tableA.Id
    GROUP BY tableA.Name, tableB.Username, tableB.ImageUrl, tableB.CompanyImageUrl
)
SELECT u.Id,u.Name,u.Owner,u.ImageUrl,u.CompanyImageUrl
    ,u.NumberOfUsers,p.NumberOfPlans
FROM GetUserInformation AS u
    INNER JOIN GetNumberOfPlans AS p ON p.Id=u.Id

After some experiences with CTE you will be find very easy to write code using CTE and you will be happy with the performance.

This problem can happen if different versions of g++ and gcc are installed.

   g++ --version
   gcc --version

If these don't give the result, you probably have multiple versions of gcc installed. You can check by using:

    dpkg -l | grep gcc | awk '{print $2}'

Usually, /usr/bin/gcc will be sym-linked to /etc/alternatives/gcc which is again sym-linked to say /usr/bin/gcc-4.6 or /usr/bin/gcc-4.8 (In case you have gcc-4.6, gcc-4.8 installed.)

By changing this link you can make gcc and g++ run in the same version and this may resolve your issue!

Use this simple code

<div w3-include-HTML="content.html"></div>
<script>w3.includeHTML();</script>
</body>```

While disabling all "touchmove" events might seem like a good idea, as soon as you need other scrollable elements on the page it will cause problems. On top of that, if you only disable "touchmove" events on certain elements (e.g. body if you want the page to be non-scrollable), as soon as it is enabled anywhere else, IOS will cause unstoppable propagation in Chrome when the URL bar toggles.

While I cannot explain this behavior, it looks like the only way to prevent seems to set the body's position to fixed. The only problem doing is that you will lose the position of the document - this is especially annoying in modals for example. One way to solve it would be to use these simple VanillaJS functions:

function disableDocumentScrolling() {
    if (document.documentElement.style.position != 'fixed') {
        // Get the top vertical offset.
        var topVerticalOffset = (typeof window.pageYOffset != 'undefined') ?
            window.pageYOffset : (document.documentElement.scrollTop ? 
            document.documentElement.scrollTop : 0);
        // Set the document to fixed position (this is the only way around IOS' overscroll "feature").
        document.documentElement.style.position = 'fixed';
        // Set back the offset position by user negative margin on the fixed document.
        document.documentElement.style.marginTop = '-' + topVerticalOffset + 'px';
    }
}

function enableDocumentScrolling() {
    if (document.documentElement.style.position == 'fixed') {
        // Remove the fixed position on the document.
        document.documentElement.style.position = null;
        // Calculate back the original position of the non-fixed document.
        var scrollPosition = -1 * parseFloat(document.documentElement.style.marginTop);
        // Remove fixed document negative margin.
        document.documentElement.style.marginTop = null;
        // Scroll to the original position of the non-fixed document.
        window.scrollTo(0, scrollPosition);
    }
}

Using this solution you can have a fixed document and any other element in your page can overflow by using simple CSS (e.g., overflow: scroll;). No need for special classes or anything else.

A step by step guide I found here.

To create a read-only database user account for MySQL

At a UNIX prompt, run the MySQL command-line program, and log in as an administrator by typing the following command:

mysql -u root -p

Type the password for the root account. At the mysql prompt, do one of the following steps:

To give the user access to the database from any host, type the following command:

grant select on database_name.* to 'read-only_user_name'@'%' identified by 'password';

If the collector will be installed on the same host as the database, type the following command:

grant select on database_name.* to 'read-only_user_name' identified by 'password';

This command gives the user read-only access to the database from the local host only. If you know the host name or IP address of the host that the collector is will be installed on, type the following command:

grant select on database_name.* to 'read-only_user_name'@'host_name or IP_address' identified by 'password';

The host name must be resolvable by DNS or by the local hosts file. At the mysql prompt, type the following command:

flush privileges;

Type quit.

The following is a list of example commands and confirmation messages:

mysql> grant select on dbname.* to 'readonlyuser'@'%' identified 
by 'pogo$23';
Query OK, 0 rows affected (0.11 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> quit

By using transform: works like a charm!

<div class="parent">
    <span>center content using transform</span>
    </div>

    //CSS
    .parent {
        position: relative;
        height: 200px;
        border: 1px solid;
    }
    .parent span {
        position: absolute;
        top: 50%;
        left: 50%;
        -webkit-transform: translate(-50%, -50%);
        transform: translate(-50%, -50%);
    }

Recently I was playing with this method too. I wrote a memoized algorithm to calcualte Fibonacci numbers which could serve as another illustration on how to use the method.

We can start by defining a map and putting the values in it for the base cases, namely, fibonnaci(0) and fibonacci(1):

private static Map<Integer,Long> memo = new HashMap<>();
static {
   memo.put(0,0L); //fibonacci(0)
   memo.put(1,1L); //fibonacci(1)
}

And for the inductive step all we have to do is redefine our Fibonacci function as follows:

public static long fibonacci(int x) {
   return memo.computeIfAbsent(x, n -> fibonacci(n-2) + fibonacci(n-1));
}

As you can see, the method computeIfAbsent will use the provided lambda expression to calculate the Fibonacci number when the number is not present in the map. This represents a significant improvement over the traditional, tree recursive algorithm.

In a component below <Router>

Just add a React Hook (in case you are not using a React class)

  React.useEffect(() => {
    window.scrollTo(0, 0);
  }, [props.location]);

grep was born to extract things:

grep -Po 'name="\K[^"]*'

test with your data:

kent$  echo '<parameter name="PortMappingEnabled" access="readWrite" type="xsd:boolean"></parameter>
  <parameter name="PortMappingLeaseDuration" access="readWrite" activeNotify="canDeny" type="xsd:unsignedInt"></parameter>
  <parameter name="RemoteHost" access="readWrite"></parameter>
  <parameter name="ExternalPort" access="readWrite" type="xsd:unsignedInt"></parameter>
  <parameter name="ExternalPortEndRange" access="readWrite" type="xsd:unsignedInt"></parameter>
  <parameter name="InternalPort" access="readWrite" type="xsd:unsignedInt"></parameter>
  <parameter name="PortMappingProtocol" access="readWrite"></parameter>
  <parameter name="InternalClient" access="readWrite"></parameter>
  <parameter name="PortMappingDescription" access="readWrite"></parameter>
'|grep -Po 'name="\K[^"]*'
PortMappingEnabled
PortMappingLeaseDuration
RemoteHost
ExternalPort
ExternalPortEndRange
InternalPort
PortMappingProtocol
InternalClient
PortMappingDescription

I get this error because a field was varbinary in sqlserver table instead of varchar.

I see Federico you've found solution by yourself. The problem was in two places. Assignations need proper quoting, in your case

SOME_PATH="/$COMPANY/someProject/some path"

is one of possible solutions.

But in shell those quotes are not stored in a memory, so when you want to use this variable, you need to quote it again, for example:

NEW_VAR="$SOME_PATH"

because if not, space will be expanded to command level, like this:

NEW_VAR=/YourCompany/someProject/some path

which is not what you want.

_{For more info you can check out my article about it http://www.cofoh.com/white-shell}

Are you asking how to do it in excel or how to do it in a VBA application? If you just want to do it in excel, here is one way.

I would've done it slightly different

 <input type="radio" value="1" name="userradiobtn" id="userradiobtn" />   
 <input type="radio" value="2" name="userradiobtn" id="userradiobtn" />    
 <input type="radio" value="3" name="userradiobtn" id="userradiobtn" class="disablebox"/>   
 <input type="checkbox" value="4" name="chkbox" id="chkbox" class="showbox"/>    
 <input type="text" name="usertxtbox" id="usertxtbox" class="showbox" />   

Notice class attribute

 $(document).ready(function() {      
    $('.disablebox').click(function() {
        $('.showbox').attr("disabled", true);           
    });
});

This way should you need to add more radio buttons you don't need to worry about changing the javascript

In version 0.18.1 is added dt.weekday_name:

print df
    my_dates  myvals
0 2015-01-01       1
1 2015-01-02       2
2 2015-01-03       3

print df.dtypes
my_dates    datetime64[ns]
myvals               int64
dtype: object

df['day_of_week'] = df['my_dates'].dt.weekday_name
print df
    my_dates  myvals day_of_week
0 2015-01-01       1    Thursday
1 2015-01-02       2      Friday
2 2015-01-03       3    Saturday

Another solution with assign:

print df.assign(day_of_week = df['my_dates'].dt.weekday_name)
    my_dates  myvals day_of_week
0 2015-01-01       1    Thursday
1 2015-01-02       2      Friday
2 2015-01-03       3    Saturday

Like Kita mentioned there is a problem with multiple callbacks firing when you animate on both 'html' and 'body'. Instead of animating both and blocking subsequent callbacks I prefer to use some basic feature detection and only animate the scrollTop property of a single object.

The accepted answer on this other thread gives some insight as to which object's scrollTop property we should try to animate: pageYOffset Scrolling and Animation in IE8

// UPDATE: don't use this... see below
// only use 'body' for IE8 and below
var scrollTopElement = (window.pageYOffset != null) ? 'html' : 'body';

// only animate on one element so our callback only fires once!
$(scrollTopElement).animate({ 
        scrollTop: '400px' // vertical position on the page
    },
    500, // the duration of the animation 
    function() {       
        // callback goes here...
    })
});

UPDATE - - -

The above attempt at feature detection fails. Seems like there's not a one-line way of doing it as webkit type browsers pageYOffset property always returns zero when there's a doctype. Instead, I found a way to use a promise to do a single callback for every time the animation executes.

$('html, body')
    .animate({ scrollTop: 100 })
    .promise()
    .then(function(){
        // callback code here
    })
});

My suggestion is to run

openssl enc -aes-256-cbc -in plain.txt -out encrypted.bin

under debugger and see what exactly what it is doing. openssl.c is the only real tutorial/getting started/reference guide OpenSSL has. All other documentation is just an API reference.

U1: My guess is that you are not setting some other required options, like mode of operation (padding).

U2: this is probably a duplicate of this question: AES CTR 256 Encryption Mode of operation on OpenSSL and answers there will likely help.

Visual Studio 2013 System Requirements

Supported Operating Systems:

• Windows 8.1 (x86 and x64)
• Windows 8 (x86 and x64)
• Windows 7 SP1 (x86 and x64)
• Windows Server 2012 R2 (x64)
• Windows Server 2012 (x64)
• Windows Server 2008 R2 SP1 (x64)

Hardware requirements:

• 1.6 GHz or faster processor
• 1 GB of RAM (1.5 GB if running on a virtual machine)
• 20 GB of available hard disk space
• 5400 RPM hard disk drive
• DirectX 9-capable video card that runs at 1024 x 768 or higher display resolution

Additional Requirements for the laptop:

• Internet Explorer 10
• KB2883200 (available through Windows Update) is required

And don't forget to reboot after updating your windows

The apparent contradictions that appear in the question are caused because in one case the Equals function is called on a string object, and in the other case the == operator is called on the System.Object type. string and object implement equality differently from each other (value vs. reference respectively).

Beyond this fact, any type can define == and Equals differently, so in general they are not interchangeable.

Here’s an example using double (from Joseph Albahari’s note to §7.9.2 of the C# language specification):

double x = double.NaN;
Console.WriteLine (x == x);         // False
Console.WriteLine (x != x);         // True
Console.WriteLine (x.Equals(x));    // True

He goes on to say that the double.Equals(double) method was designed to work correctly with lists and dictionaries. The == operator, on the other hand, was designed to follow the IEEE 754 standard for floating point types.

In the specific case of determining string equality, the industry preference is to use neither == nor string.Equals(string) most of the time. These methods determine whether two string are the same character-for-character, which is rarely the correct behavior. It is better to use string.Equals(string, StringComparison), which allows you to specify a particular type of comparison. By using the correct comparison, you can avoid a lot of potential (very hard to diagnose) bugs.

Here’s one example:

string one = "Caf\u00e9";        // U+00E9 LATIN SMALL LETTER E WITH ACUTE
string two = "Cafe\u0301";       // U+0301 COMBINING ACUTE ACCENT
Console.WriteLine(one == two);                                          // False
Console.WriteLine(one.Equals(two));                                     // False
Console.WriteLine(one.Equals(two, StringComparison.InvariantCulture));  // True

Both strings in this example look the same ("Café"), so this could be very tough to debug if using a naïve (ordinal) equality.

You should also be aware of the fact, that with utf8_general_ci when using a varchar field as unique or primary index inserting 2 values like 'a' and 'á' would give a duplicate key error.

Looks like you have not activated your virtualenv when using the runserver command.

Windows: <virtualenv dir>\Scripts\activate.bat

Linux: source <virtualenv dir>\bin\activate

You should see (name of virtualenv) as a prefix to your current directory:

(virtualenv) E:\video course\Python\code\web_worker\MxOnline>python manage.py runserver

ApplicationContext (Root Application Context) : Every Spring MVC web application has an applicationContext.xml file which is configured as the root of context configuration. Spring loads this file and creates an applicationContext for the entire application. This file is loaded by the ContextLoaderListener which is configured as a context param in web.xml file. And there will be only one applicationContext per web application.

WebApplicationContext : WebApplicationContext is a web aware application context i.e. it has servlet context information. A single web application can have multiple WebApplicationContext and each Dispatcher servlet (which is the front controller of Spring MVC architecture) is associated with a WebApplicationContext. The webApplicationContext configuration file *-servlet.xml is specific to a DispatcherServlet. And since a web application can have more than one dispatcher servlet configured to serve multiple requests, there can be more than one webApplicationContext file per web application.

Not exactly, but you can say List<object> and things will work. However, list[0].Id won't work.

This will work at runtime in C# 4.0 by having a List<dynamic>, that is you won't get IntelliSense.

Try a different cable, ideally an official Samsung one.

I had tried a crappy USB cable I had lying around and then tried another which was Samsung and works perfectly now.

Not sure why they would be different though but worked for me.

iPad Detection

You should be able to detect an iPad user by taking a look at the userAgent property:

var is_iPad = navigator.userAgent.match(/iPad/i) != null;

iPhone/iPod Detection

Similarly, the platform property to check for devices like iPhones or iPods:

function is_iPhone_or_iPod(){
     return navigator.platform.match(/i(Phone|Pod))/i)
}

Notes

While it works, you should generally avoid performing browser-specific detection as it can often be unreliable (and can be spoofed). It's preferred to use actual feature-detection in most cases, which can be done through a library like Modernizr.

As pointed out in Brennen's answer, issues can arise when performing this detection within the Facebook app. Please see his answer for handling this scenario.

Related Resources

• jQuery HowTo: Detect iPad users using JavaScript
• jQuery HowTo: Detecting & Redirecting iPad / iPhone Users
• David Walsh's Blog : Detecting iPad use
• Detecting iPad use via PHP

Bash shell supports this out-of-box, e.g.

exec {stream}<>/dev/tcp/example.com/80
printf "GET / HTTP/1.1\nHost: example.com\nConnection: close\n\n" >&${stream}
cat <&${stream}

To filter and only show some lines, run: grep Example <&${stream}.

I usually approach it like this:

   char[] c = text.ToCharArray();
   for (i=0; i<c.Length; i++)
   {
    if (c[i]>'9' || c[i]<'0') // use any rules of your choice
    {
     c[i]=' '; // put in any character you like
    }
   }
   // the new string can have the same name, or a new variable       
   String text=new string(c); 

Login into your server using a shell program like putty.

Type in the following command on the command line

zcat DB_File_Name.sql.gz | mysql -u username -p Target_DB_Name

where

DB_File_Name.sql.gz = full path of the sql.gz file to be imported

username = your mysql username

Target_DB_Name = database name where you want to import the database

When you hit enter in the command line, it will prompt for password. Enter your MySQL password.

You are done!

I had the same issue and the following seemed to have addressed the issue.

a) Updated to latest version 1.3.5 and re-enabled all the diagnosis settings.

I was still getting the messages

b) Added the vendor folder with the dependent libraries to the workspace

This seems to have solved the problem.

All API

if use all API just create the theme in style

style.xml

<resources>

    //...

    <style name="progressBarBlue" parent="@style/Theme.AppCompat">
        <item name="colorAccent">@color/blue</item>
    </style>

</resources>

and use in progress

<ProgressBar
    ...
    android:theme="@style/progressBarBlue" />

API level 21 and higher

if used in API level 21 and higher just use this code:

<ProgressBar
   //...
   android:indeterminate="true"
   android:indeterminateTintMode="src_atop"
   android:indeterminateTint="@color/secondary"/>

Code snippet. Courtesy-Multiple posts on stack overflow including this one.

 db.cust.drop();
 db.zip.drop();
 db.cust.insert({cust_id:1, zip_id: 101});
 db.cust.insert({cust_id:2, zip_id: 101});
 db.cust.insert({cust_id:3, zip_id: 101});
 db.cust.insert({cust_id:4, zip_id: 102});
 db.cust.insert({cust_id:5, zip_id: 102});

 db.zip.insert({zip_id:101, zip_cd:'AAA'});
 db.zip.insert({zip_id:102, zip_cd:'BBB'});
 db.zip.insert({zip_id:103, zip_cd:'CCC'});

mapCust = function() {
    var values = {
        cust_id: this.cust_id
    };
    emit(this.zip_id, values);
};

mapZip = function() {
    var values = {
    zip_cd: this.zip_cd
    };
    emit(this.zip_id, values);
};

reduceCustZip =  function(k, values) {
    var result = {};
    values.forEach(function(value) {
    var field;
        if ("cust_id" in value) {
            if (!("cust_ids" in result)) {
                result.cust_ids = [];
            }
            result.cust_ids.push(value);
        } else {
    for (field in value) {
        if (value.hasOwnProperty(field) ) {
                result[field] = value[field];
        }
         };  
       }
      });
       return result;
};


db.cust_zip.drop();
db.cust.mapReduce(mapCust, reduceCustZip, {"out": {"reduce": "cust_zip"}});
db.zip.mapReduce(mapZip, reduceCustZip, {"out": {"reduce": "cust_zip"}});
db.cust_zip.find();


mapCZ = function() {
    var that = this;
    if ("cust_ids" in this.value) {
        this.value.cust_ids.forEach(function(value) {
            emit(value.cust_id, {
                zip_id: that._id,
                zip_cd: that.value.zip_cd
            });
        });
    }
};

reduceCZ = function(k, values) {
    var result = {};
    values.forEach(function(value) {
        var field;
        for (field in value) {
            if (value.hasOwnProperty(field)) {
                result[field] = value[field];
            }
        }
    });
    return result;
};
db.cust_zip_joined.drop();
db.cust_zip.mapReduce(mapCZ, reduceCZ, {"out": "cust_zip_joined"}); 
db.cust_zip_joined.find().pretty();


var flattenMRCollection=function(dbName,collectionName) {
    var collection=db.getSiblingDB(dbName)[collectionName];

    var i=0;
    var bulk=collection.initializeUnorderedBulkOp();
    collection.find({ value: { $exists: true } }).addOption(16).forEach(function(result) {
        print((++i));
        //collection.update({_id: result._id},result.value);

        bulk.find({_id: result._id}).replaceOne(result.value);

        if(i%1000==0)
        {
            print("Executing bulk...");
            bulk.execute();
            bulk=collection.initializeUnorderedBulkOp();
        }
    });
    bulk.execute();
};


flattenMRCollection("mydb","cust_zip_joined");
db.cust_zip_joined.find().pretty();

Simply use

1. shift + cmd + P
2. Search Select Interpreter

3. Select it and it will show you the list of your virtual environment created via conda and other python versions

4. select the environment and you are ready to go.

Quoting the 'Select and activate an environment' docs

Selecting an interpreter from the list adds an entry for python.pythonPath with
the path to the interpreter inside your Workspace Settings.

For best performance, here is what I wrote :
(see execution plan)

DELETE FROM your_table
WHERE rowid IN 
  (select t1.rowid from your_table  t1
      LEFT OUTER JOIN (
      SELECT MIN(rowid) as rowid, column1,column2, column3
      FROM your_table 
      GROUP BY column1, column2, column3
  )  co1 ON (t1.rowid = co1.rowid)
  WHERE co1.rowid IS NULL
);

I was looking for a different solution.

Error logs, by default, before any configuration is set, on my system (x86 Arch Linux), was found in:

/var/log/nginx/error.log

don't forget to add icon file to your notifyIcon or it will not appear in the tray.

This seems to work as well

SELECT *
FROM makerar m1
WHERE m1.avg = (SELECT MAX(avg)
                FROM makerar m2
                WHERE m1.cname = m2.cname
               )

// this is the dataSource
this.guests = [];

this.guests.push({id: 1, name: 'Ricardo'});

// refresh the dataSource this.guests = Array.from(this.guest);

It can easly be done using JavaScript for reference see link JS String

EDIT it can easly done as. ;)

var url="/Controller/Action?id=11112&value=4444 ";
var parameter_Start_index=url.indexOf('?');
var action_URL = url.substring(0, parameter_Start_index);
alert('action_URL : '+action_URL);

If you want to add a row into the tbody, get a reference to it and call its insertRow method.

var tbodyRef = document.getElementById('myTable').getElementsByTagName('tbody')[0];

// Insert a row at the end of table
var newRow = tbodyRef.insertRow();

// Insert a cell at the end of the row
var newCell = newRow.insertCell();

// Append a text node to the cell
var newText = document.createTextNode('new row');
newCell.appendChild(newText);

<table id="myTable">
  <thead>
    <tr>
      <th>My Header</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>initial row</td>
    </tr>
  </tbody>
  <tfoot>
    <tr>
      <td>My Footer</td>
    </tr>
  </tfoot>
</table>

(old demo on JSFiddle)

$today=date('d-m-Y');
$next_date= date('d-m-Y', strtotime($today. ' + 90 days'));
echo $next_date;

Node.JS does not fully support ES6 currently, so you can either use asyncawait module or transpile it using Bable.

install

npm install --save asyncawait

helloz.js

var async = require('asyncawait/async');
var await = require('asyncawait/await');

(async (function testingAsyncAwait() {
    await (console.log("Print me!"));
}))();

Basically set up your css like:

element {
  border: 1px solid #fff;      
  transition: border .5s linear;
}

element.saved {
  border: 1px solid transparent;
}

Using DISTINCT will work

SELECT GROUP_CONCAT(DISTINCT(categories) SEPARATOR ' ') FROM table

REf:- this

@user370305's answer is error prone and discouraged by Android OS Developers (check https://groups.google.com/forum/#!msg/android-developers/zH-2bovZSLg/L2YM8Z1N-HwJ)

There is a much more simpler approach:

On a BaseActivity that all Activities extend:

protected static boolean isVisible = false;

@Override
public void onResume() {
   super.onResume();
   setVisible(true);
}

@Override
public void onPause() {
    super.onPause();
    setVisible(false);
}

Whenever you need to check if any of your application activities is in foreground just check isVisible();

To understand this approach check this answer of side-by-side activity lifecycle: Activity side-by-side lifecycle

Calling exactly super() is always redundant. It's explicitly doing what would be implicitly done otherwise. That's because if you omit a call to the super constructor, the no-argument super constructor will be invoked automatically anyway. Not to say that it's bad style; some people like being explicit.

However, where it becomes useful is when the super constructor takes arguments that you want to pass in from the subclass.

public class Animal {
   private final String noise;
   protected Animal(String noise) {
      this.noise = noise;
   }

   public void makeNoise() {
      System.out.println(noise);
   }
}

public class Pig extends Animal {
    public Pig() {
       super("Oink");
    }
}

XMLHttpRequest, i.e. AJAX, without the XML.

The precise manner you do this is dependent on what JavaScript framework you're using, but if we disregard interoperability issues, your code will look something like:

var client = new XMLHttpRequest();
client.open('GET', '/foo.txt');
client.onreadystatechange = function() {
  alert(client.responseText);
}
client.send();

Normally speaking, though, XMLHttpRequest isn't available on all platforms, so some fudgery is done. Once again, your best bet is to use an AJAX framework like jQuery.

One extra consideration: this will only work as long as foo.txt is on the same domain. If it's on a different domain, same-origin security policies will prevent you from reading the result.

Or, you could do it the really simple way.

Dim OpenCMD 
OpenCMD = CreateObject("wscript.shell")
OpenCMD.run("Command Goes Here")

just seperate the class name with a comma.

.a,.b{
your styles
}

Anybody can try the following (mailto function only accepts plaintext but here i show how to use HTML innertext properties and how to add an anchor as mailto body params):

//Create as many html elements you need.

const titleElement = document.createElement("DIV");
titleElement.innerHTML = this.shareInformation.title; // Just some string

//Here I create an <a> so I can use href property
const titleLinkElement = document.createElement("a");
titleLinkElement.href = this.shareInformation.link; // This is a url

...

let mail = document.createElement("a");

// Using es6 template literals add the html innerText property and anchor element created to mailto body parameter
mail.href = 
  `mailto:?subject=${titleElement.innerText}&body=${titleLinkElement}%0D%0A${abstractElement.innerText}`;
mail.click();

// Notice how I use ${titleLinkElement} that is an anchor element, so mailto uses its href and renders the url I needed

If you don't care about supporting old browsers, you can use :not() to exclude that element:

.parent:hover span:not(:hover) {
    border: 10px solid red;
}

Demo: http://jsfiddle.net/vz9A9/1/

If you do want to support them, the I guess you'll have to either use JavaScript or override the CSS properties again:

.parent span:hover {
    border: 10px solid green;
}

If your Job is failing because of OutOfMemmory on nodes you can tweek your number of max maps and reducers and the JVM opts for each. mapred.child.java.opts (the default is 200Xmx) usually has to be increased based on your data nodes specific hardware.

This link might be helpful... pls check

using System;
using System.IO;
using System.Text;

class Test
{
    public static void Main()
    {
             string strToProcess = "fkdfdsfdflkdkfk@dfsdfjk72388389@kdkfkdfkkl@jkdjkfjd@jjjk@";
            strToProcess.Replace("@", Environment.NewLine);
            Console.WriteLine(strToProcess);
    }
}

You need to convert the String object into an array of char using the toCharArray() method of the String class:

String str = "xyz";
char arr[] = str.toCharArray(); // convert the String object to array of char

// iterate over the array using the for-each loop.       
for(char c: arr){
    System.out.println(c);
}

You can use this command:

grep -rn "string" *

n for showing line number with the filename r for recursive

Providing you know the index value of the beginning and end of each word you wish to replace in the character array, and you only wish to replace that particular chunk of data, you could do it like this.

>>> s = "papa is papa is papa"
>>> s = s[:8]+s[8:13].replace("papa", "mama")+s[13:]
>>> print(s)
papa is mama is papa

Alternatively, if you also wish to retain the original data structure, you could store it in a dictionary.

>>> bin = {}
>>> s = "papa is papa is papa"
>>> bin["0"] = s
>>> s = s[:8]+s[8:13].replace("papa", "mama")+s[13:]
>>> print(bin["0"])
papa is papa is papa
>>> print(s)
papa is mama is papa

The following is a nice generic alternative to valueOf()

public static RandomEnum getEnum(String value) {
  for (RandomEnum re : RandomEnum.values()) {
    if (re.description.compareTo(value) == 0) {
      return re;
    }
  }
  throw new IllegalArgumentException("Invalid RandomEnum value: " + value);
}

This is a little more concise and also allows you to have different dialog values etc based on different click events:

$('#click_link').live("click",function() {
    $("#popup").dialog({modal:true, width:500, height:800});

    $("#popup").dialog("open");

    return false;
});

If you need to add emails as CC or BCC, add the following part in the variable you use as for your header :

$headers .= "CC: [email protected]".PHP_EOL;
$headers .= "BCC: [email protected]".PHP_EOL;

Regards

UPDATE:

Since the version 22.1.0, the class ActionBarActivity is deprecated, so instead use AppCompatActivity. For more details see here

Using ActionBarActivity:

In Eclipse:

1 - Make sure library project(appcompat_v7) is open & is proper referenced (added as library) in your application project.

2 - Delete android-support-v4.jar from your project's libs folder(if jar is present).

3 - Appcompat_v7 must have android-support-v4.jar & android-support-v7-appcompat.jar inside it's libs folder. (If jars are not present copy them from /sdk/extras/android/support/v7/appcompat/libs folder of your installed android sdk location)

4- Check whether ActionBarActivity is properly imported.

import android.support.v7.app.ActionBarActivity;

In Android Studio

Just add compile dependencies to app's build.gradle

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:22.1.1'
}

Update Bootstrap 4

Bootstrap 4 has utility classes that make it easier to create a full screen carousel. For example, use the min-vh-100 class on the carousel-item content...

<div class="carousel slide" data-ride="carousel">
      <div class="carousel-inner bg-info" role="listbox">
            <div class="carousel-item active">
                <div class="d-flex align-items-center justify-content-center min-vh-100">
                    <h1 class="display-1">ONE</h1>
                </div>
            </div>
      </div>
</div>

Full screen carousel demo

This works to make the carousel items full screen, but carousel items that contain images or videos that have a specific size & aspect ratio require further consideration.

Since the viewport h/w ratio is likely to be different than the image or video h/w ratio, usually background images or object-fit are commonly used to size images and videos to "full screen". For videos, use the Bootstrap responsive embed classes as needed for the video ratio (21:9, 19:9, etc...).

Full screen videos demo

Also see: https://stackoverflow.com/a/58765043/171456

Original answer (Bootstrap 3)

Make sure the img inside the carousel item is set to height and width 100%. You also have to make sure the carousel and any of the .item containers (html,body) are 100%...

html,body{height:100%;}
.carousel,.item,.active{height:100%;}
.carousel-inner{height:100%;}

Boostrap 3 Full Screen Carousel Demo

Here's an example for Bootstrap 3.x: http://www.codeply.com/go/2tVXo3mAtV

1. These are equivalent

   char buf[10] = "";
   char buf[10] = {0};
   char buf[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
   

2. These are equivalent

   char buf[10] = " ";
   char buf[10] = {' '};
   char buf[10] = {' ', 0, 0, 0, 0, 0, 0, 0, 0, 0};
   

3. These are equivalent

   char buf[10] = "a";
   char buf[10] = {'a'};
   char buf[10] = {'a', 0, 0, 0, 0, 0, 0, 0, 0, 0};
   

you can simply use JSON.stringify(options) convert JSON object to string before submit, then warning dismiss and works fine

I followed everything from here: https://cloud.google.com/compute/docs/instances/connecting-to-instance#generatesshkeypair

But still there was an error and SSH keys in my instance metadata wasn't getting recognized.

Solution: Check if your ssh key has any new-line. When I copied my public key using cat, it added into-lines into the key, thus breaking the key. Had to manually check any line-breaks and correct it.

Use:

sed -e **'s/^[ \t]*//'**  name_of_file_from_which_you_want_to_remove_space > 'name _file_where_you_want_to_store_output'

For example:

sed -e 's/^[ \t]*//'  file1.txt > output.txt

Note:

s/: Substitute command ~ replacement for pattern (^[ \t]*) on each addressed line

^[ \t]*: Search pattern ( ^ – start of the line; [ \t]* match one or more blank spaces including tab)

//: Replace (delete) all matched patterns

if " isn't working then try " instead.

You will need to customise the control quite a lot to achieve this.

Please follow the guide at: http://www.quirksmode.org/dom/inputfile.html

EDIT: Cactus is now a dead project: http://attic.apache.org/projects/jakarta-cactus.html

You may want to look at cactus.

http://jakarta.apache.org/cactus/

Project Description

Cactus is a simple test framework for unit testing server-side java code (Servlets, EJBs, Tag Libs, Filters, ...).

The intent of Cactus is to lower the cost of writing tests for server-side code. It uses JUnit and extends it.

Cactus implements an in-container strategy, meaning that tests are executed inside the container.

select * 
from blah 
where DatetimeField between '22/02/2009 09:00:00.000' and '23/05/2009 10:30:00.000'

Depending on the country setting for the login, the month/day may need to be swapped around.

Handlebars partials take a second parameter which becomes the context for the partial:

{{> person this}}

In versions v2.0.0 alpha and later, you can also pass a hash of named parameters:

{{> person headline='Headline'}}

You can see the tests for these scenarios: https://github.com/wycats/handlebars.js/blob/ce74c36118ffed1779889d97e6a2a1028ae61510/spec/qunit_spec.js#L456-L462 https://github.com/wycats/handlebars.js/blob/e290ec24f131f89ddf2c6aeb707a4884d41c3c6d/spec/partials.js#L26-L32

The best secure method is to use the crontab. ie Save all your commands in a database say, mysql table and create a cronjob to read these mysql entreis and execute via exec() or shell_exec(). Please read this link for more detailed information.

• • • • • killProcess.php

Don't know if anyone searches for this. I had the same problem. A select on the query and then doing the where (or join) and using the select variable solved the problem for me. (problem was in the collection "Reintegraties" for me)

query.Select(zv => new
            {
                zv,
                rId = zv.this.Reintegraties.FirstOrDefault().Id
            })
            .Where(x => !db.Taken.Any(t => t.HoortBijEntiteitId == x.rId
                                             && t.HoortBijEntiteitType == EntiteitType.Reintegratie
                                             && t.Type == TaakType))
            .Select(x => x.zv);

hope this helps anyone.

What you want to do is a combination of part of 1 and all of 2.

You need to use the PowerMockito.mockStatic to enable static mocking for all static methods of a class. This means make it possible to stub them using the when-thenReturn syntax.

But the 2-argument overload of mockStatic you are using supplies a default strategy for what Mockito/PowerMock should do when you call a method you haven't explicitly stubbed on the mock instance.

From the javadoc:

Creates class mock with a specified strategy for its answers to interactions. It's quite advanced feature and typically you don't need it to write decent tests. However it can be helpful when working with legacy systems. It is the default answer so it will be used only when you don't stub the method call.

The default default stubbing strategy is to just return null, 0 or false for object, number and boolean valued methods. By using the 2-arg overload, you're saying "No, no, no, by default use this Answer subclass' answer method to get a default value. It returns a Long, so if you have static methods which return something incompatible with Long, there is a problem.

Instead, use the 1-arg version of mockStatic to enable stubbing of static methods, then use when-thenReturn to specify what to do for a particular method. For example:

import static org.mockito.Mockito.*;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

class ClassWithStatics {
  public static String getString() {
    return "String";
  }

  public static int getInt() {
    return 1;
  }
}

@RunWith(PowerMockRunner.class)
@PrepareForTest(ClassWithStatics.class)
public class StubJustOneStatic {
  @Test
  public void test() {
    PowerMockito.mockStatic(ClassWithStatics.class);

    when(ClassWithStatics.getString()).thenReturn("Hello!");

    System.out.println("String: " + ClassWithStatics.getString());
    System.out.println("Int: " + ClassWithStatics.getInt());
  }
}

The String-valued static method is stubbed to return "Hello!", while the int-valued static method uses the default stubbing, returning 0.

Most distributions have installed the GUI app file-roller which unpacks tar, zip, rpm and many more.

file-roller --extract-here package.rpm

This will extract the contents in the current directory.

A char is an integral type. When you write

char ch = 'A';

you're setting the value of ch to whatever number your compiler uses to represent the character 'A'. That's usually the ASCII code for 'A' these days, but that's not required. You're almost certainly using a system that uses ASCII.

Like any numeric type, you can initialize it with an ordinary number:

char ch = 13;

If you want do do arithmetic on a char value, just do it: ch = ch + 1; etc.

However, in order to display the value you have to get around the assumption in the iostreams library that you want to display char values as characters rather than numbers. There are a couple of ways to do that.

std::cout << +ch << '\n';
std::cout << int(ch) << '\n'

To make the solution by @flion look really great, you could adjust the center point for that icon so it doesn't wobble up and down. This looks right for me at a small font size:

.glyphicon-refresh.spinning {
  transform-origin: 48% 50%;
}

FOR SQLALCHEMY AND PYTHON

The encoding used for Unicode has traditionally been 'utf8'. However, for MySQL versions 5.5.3 on forward, a new MySQL-specific encoding 'utf8mb4' has been introduced, and as of MySQL 8.0 a warning is emitted by the server if plain utf8 is specified within any server-side directives, replaced with utf8mb3. The rationale for this new encoding is due to the fact that MySQL’s legacy utf-8 encoding only supports codepoints up to three bytes instead of four. Therefore, when communicating with a MySQL database that includes codepoints more than three bytes in size, this new charset is preferred, if supported by both the database as well as the client DBAPI, as in:

e = create_engine(
    "mysql+pymysql://scott:tiger@localhost/test?charset=utf8mb4")
All modern DBAPIs should support the utf8mb4 charset.

enter link description here

All the answers are great, and it will do what you ask it too, but I believe the best way to delete this, and the best way for the garbage collector (if you are running node.js) is like this:

var json = { <your_imported_json_here> };
var key = "somekey";
json[key] = null;
delete json[key];

This way the garbage collector for node.js will know that json['somekey'] is no longer required, and will delete it.

You can declare like one of the below options:

char data[] = "Testing String";

or

const char* data = "Testing String";

or

char* data = (char*) "Testing String";

I think that you only have to replace SHA1 function with SHA256 function with tatk code from link in Your post

Selecting from sysusers will get you information about users on the selected database, not logins on the server.

For example, lets say we want to display only the first 10 items of an array, we could do this using the SlicePipe like so:

<ul>
     <li *ngFor="let item of items | slice:0:10">
      {{ item }}
     </li>
</ul>

From the source code:

// Instance of WebViewClient that is the client callback.
private volatile WebViewClient mWebViewClient;
// Instance of WebChromeClient for handling all chrome functions.
private volatile WebChromeClient mWebChromeClient;

// SOME OTHER SUTFFF.......

/**
 * Set the WebViewClient.
 * @param client An implementation of WebViewClient.
 */
public void setWebViewClient(WebViewClient client) {
    mWebViewClient = client;
}

/**
 * Set the WebChromeClient.
 * @param client An implementation of WebChromeClient.
 */
public void setWebChromeClient(WebChromeClient client) {
    mWebChromeClient = client;
}

Using WebChromeClient allows you to handle Javascript dialogs, favicons, titles, and the progress. Take a look of this example: Adding alert() support to a WebView

At first glance, there are too many differences WebViewClient & WebChromeClient. But, basically: if you are developing a WebView that won't require too many features but rendering HTML, you can just use a WebViewClient. On the other hand, if you want to (for instance) load the favicon of the page you are rendering, you should use a WebChromeClient object and override the onReceivedIcon(WebView view, Bitmap icon).

Most of the times, if you don't want to worry about those things... you can just do this:

webView= (WebView) findViewById(R.id.webview); 
webView.setWebChromeClient(new WebChromeClient()); 
webView.setWebViewClient(new WebViewClient()); 
webView.getSettings().setJavaScriptEnabled(true); 
webView.loadUrl(url); 

And your WebView will (in theory) have all features implemented (as the android native browser).

The approach recommended by the ASP.Net Core team is to use the new policy design which is fully documented here. The basic idea behind the new approach is to use the new [Authorize] attribute to designate a "policy" (e.g. [Authorize( Policy = "YouNeedToBe18ToDoThis")] where the policy is registered in the application's Startup.cs to execute some block of code (i.e. ensure the user has an age claim where the age is 18 or older).

The policy design is a great addition to the framework and the ASP.Net Security Core team should be commended for its introduction. That said, it isn't well-suited for all cases. The shortcoming of this approach is that it fails to provide a convenient solution for the most common need of simply asserting that a given controller or action requires a given claim type. In the case where an application may have hundreds of discrete permissions governing CRUD operations on individual REST resources ("CanCreateOrder", "CanReadOrder", "CanUpdateOrder", "CanDeleteOrder", etc.), the new approach either requires repetitive one-to-one mappings between a policy name and a claim name (e.g. options.AddPolicy("CanUpdateOrder", policy => policy.RequireClaim(MyClaimTypes.Permission, "CanUpdateOrder));), or writing some code to perform these registrations at run time (e.g. read all claim types from a database and perform the aforementioned call in a loop). The problem with this approach for the majority of cases is that it's unnecessary overhead.

While the ASP.Net Core Security team recommends never creating your own solution, in some cases this may be the most prudent option with which to start.

The following is an implementation which uses the IAuthorizationFilter to provide a simple way to express a claim requirement for a given controller or action:

public class ClaimRequirementAttribute : TypeFilterAttribute
{
    public ClaimRequirementAttribute(string claimType, string claimValue) : base(typeof(ClaimRequirementFilter))
    {
        Arguments = new object[] {new Claim(claimType, claimValue) };
    }
}

public class ClaimRequirementFilter : IAuthorizationFilter
{
    readonly Claim _claim;

    public ClaimRequirementFilter(Claim claim)
    {
        _claim = claim;
    }

    public void OnAuthorization(AuthorizationFilterContext context)
    {
        var hasClaim = context.HttpContext.User.Claims.Any(c => c.Type == _claim.Type && c.Value == _claim.Value);
        if (!hasClaim)
        {
            context.Result = new ForbidResult();
        }
    }
}


[Route("api/resource")]
public class MyController : Controller
{
    [ClaimRequirement(MyClaimTypes.Permission, "CanReadResource")]
    [HttpGet]
    public IActionResult GetResource()
    {
        return Ok();
    }
}

Can use either json or ast python modules:

Using json :
=============

import json
jsonStr = '{"one" : "1", "two" : "2", "three" : "3"}'
json_data = json.loads(jsonStr)
print(f"json_data: {json_data}")
print(f"json_data['two']: {json_data['two']}")

Output:
json_data: {'one': '1', 'two': '2', 'three': '3'}
json_data['two']: 2




Using ast:
==========

import ast
jsonStr = '{"one" : "1", "two" : "2", "three" : "3"}'
json_dict = ast.literal_eval(jsonStr)
print(f"json_dict: {json_dict}")
print(f"json_dict['two']: {json_dict['two']}")

Output:
json_dict: {'one': '1', 'two': '2', 'three': '3'}
json_dict['two']: 2

This did the job (in the year 2012):

#include <stdio.h>
const unsigned long long size = 8ULL*1024ULL*1024ULL;
unsigned long long a[size];

int main()
{
    FILE* pFile;
    pFile = fopen("file.binary", "wb");
    for (unsigned long long j = 0; j < 1024; ++j){
        //Some calculations to fill a[]
        fwrite(a, 1, size*sizeof(unsigned long long), pFile);
    }
    fclose(pFile);
    return 0;
}

I just timed 8GB in 36sec, which is about 220MB/s and I think that maxes out my SSD. Also worth to note, the code in the question used one core 100%, whereas this code only uses 2-5%.

Thanks a lot to everyone.

Update: 5 years have passed it's 2017 now. Compilers, hardware, libraries and my requirements have changed. That's why I made some changes to the code and did some new measurements.

First up the code:

#include <fstream>
#include <chrono>
#include <vector>
#include <cstdint>
#include <numeric>
#include <random>
#include <algorithm>
#include <iostream>
#include <cassert>

std::vector<uint64_t> GenerateData(std::size_t bytes)
{
    assert(bytes % sizeof(uint64_t) == 0);
    std::vector<uint64_t> data(bytes / sizeof(uint64_t));
    std::iota(data.begin(), data.end(), 0);
    std::shuffle(data.begin(), data.end(), std::mt19937{ std::random_device{}() });
    return data;
}

long long option_1(std::size_t bytes)
{
    std::vector<uint64_t> data = GenerateData(bytes);

    auto startTime = std::chrono::high_resolution_clock::now();
    auto myfile = std::fstream("file.binary", std::ios::out | std::ios::binary);
    myfile.write((char*)&data[0], bytes);
    myfile.close();
    auto endTime = std::chrono::high_resolution_clock::now();

    return std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count();
}

long long option_2(std::size_t bytes)
{
    std::vector<uint64_t> data = GenerateData(bytes);

    auto startTime = std::chrono::high_resolution_clock::now();
    FILE* file = fopen("file.binary", "wb");
    fwrite(&data[0], 1, bytes, file);
    fclose(file);
    auto endTime = std::chrono::high_resolution_clock::now();

    return std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count();
}

long long option_3(std::size_t bytes)
{
    std::vector<uint64_t> data = GenerateData(bytes);

    std::ios_base::sync_with_stdio(false);
    auto startTime = std::chrono::high_resolution_clock::now();
    auto myfile = std::fstream("file.binary", std::ios::out | std::ios::binary);
    myfile.write((char*)&data[0], bytes);
    myfile.close();
    auto endTime = std::chrono::high_resolution_clock::now();

    return std::chrono::duration_cast<std::chrono::milliseconds>(endTime - startTime).count();
}

int main()
{
    const std::size_t kB = 1024;
    const std::size_t MB = 1024 * kB;
    const std::size_t GB = 1024 * MB;

    for (std::size_t size = 1 * MB; size <= 4 * GB; size *= 2) std::cout << "option1, " << size / MB << "MB: " << option_1(size) << "ms" << std::endl;
    for (std::size_t size = 1 * MB; size <= 4 * GB; size *= 2) std::cout << "option2, " << size / MB << "MB: " << option_2(size) << "ms" << std::endl;
    for (std::size_t size = 1 * MB; size <= 4 * GB; size *= 2) std::cout << "option3, " << size / MB << "MB: " << option_3(size) << "ms" << std::endl;

    return 0;
}

This code compiles with Visual Studio 2017 and g++ 7.2.0 (a new requirements). I ran the code with two setups:

• Laptop, Core i7, SSD, Ubuntu 16.04, g++ Version 7.2.0 with -std=c++11 -march=native -O3
• Desktop, Core i7, SSD, Windows 10, Visual Studio 2017 Version 15.3.1 with /Ox /Ob2 /Oi /Ot /GT /GL /Gy

Which gave the following measurements (after ditching the values for 1MB, because they were obvious outliers): Both times option1 and option3 max out my SSD. I didn't expect this to see, because option2 used to be the fastest code on my old machine back then.

TL;DR: My measurements indicate to use std::fstream over FILE.

An ORM (Object Relational Mapper) is a piece/layer of software that helps map your code Objects to your database.

Some handle more aspects than others...but the purpose is to take some of the weight of the Data Layer off of the developer's shoulders.

Here's a brief clip from Martin Fowler (Data Mapper):

Patterns of Enterprise Application Architecture Data Mappers

This code works very fast. It comes from here

Option Explicit

Private Const clOneMask = 16515072          '000000 111111 111111 111111
Private Const clTwoMask = 258048            '111111 000000 111111 111111
Private Const clThreeMask = 4032            '111111 111111 000000 111111
Private Const clFourMask = 63               '111111 111111 111111 000000

Private Const clHighMask = 16711680         '11111111 00000000 00000000
Private Const clMidMask = 65280             '00000000 11111111 00000000
Private Const clLowMask = 255               '00000000 00000000 11111111

Private Const cl2Exp18 = 262144             '2 to the 18th power
Private Const cl2Exp12 = 4096               '2 to the 12th
Private Const cl2Exp6 = 64                  '2 to the 6th
Private Const cl2Exp8 = 256                 '2 to the 8th
Private Const cl2Exp16 = 65536              '2 to the 16th

Public Function Encode64(sString As String) As String

    Dim bTrans(63) As Byte, lPowers8(255) As Long, lPowers16(255) As Long, bOut() As Byte, bIn() As Byte
    Dim lChar As Long, lTrip As Long, iPad As Integer, lLen As Long, lTemp As Long, lPos As Long, lOutSize As Long

    For lTemp = 0 To 63                                 'Fill the translation table.
        Select Case lTemp
            Case 0 To 25
                bTrans(lTemp) = 65 + lTemp              'A - Z
            Case 26 To 51
                bTrans(lTemp) = 71 + lTemp              'a - z
            Case 52 To 61
                bTrans(lTemp) = lTemp - 4               '1 - 0
            Case 62
                bTrans(lTemp) = 43                      'Chr(43) = "+"
            Case 63
                bTrans(lTemp) = 47                      'Chr(47) = "/"
        End Select
    Next lTemp

    For lTemp = 0 To 255                                'Fill the 2^8 and 2^16 lookup tables.
        lPowers8(lTemp) = lTemp * cl2Exp8
        lPowers16(lTemp) = lTemp * cl2Exp16
    Next lTemp

    iPad = Len(sString) Mod 3                           'See if the length is divisible by 3
    If iPad Then                                        'If not, figure out the end pad and resize the input.
        iPad = 3 - iPad
        sString = sString & String(iPad, Chr(0))
    End If

    bIn = StrConv(sString, vbFromUnicode)               'Load the input string.
    lLen = ((UBound(bIn) + 1) \ 3) * 4                  'Length of resulting string.
    lTemp = lLen \ 72                                   'Added space for vbCrLfs.
    lOutSize = ((lTemp * 2) + lLen) - 1                 'Calculate the size of the output buffer.
    ReDim bOut(lOutSize)                                'Make the output buffer.

    lLen = 0                                            'Reusing this one, so reset it.

    For lChar = LBound(bIn) To UBound(bIn) Step 3
        lTrip = lPowers16(bIn(lChar)) + lPowers8(bIn(lChar + 1)) + bIn(lChar + 2)    'Combine the 3 bytes
        lTemp = lTrip And clOneMask                     'Mask for the first 6 bits
        bOut(lPos) = bTrans(lTemp \ cl2Exp18)           'Shift it down to the low 6 bits and get the value
        lTemp = lTrip And clTwoMask                     'Mask for the second set.
        bOut(lPos + 1) = bTrans(lTemp \ cl2Exp12)       'Shift it down and translate.
        lTemp = lTrip And clThreeMask                   'Mask for the third set.
        bOut(lPos + 2) = bTrans(lTemp \ cl2Exp6)        'Shift it down and translate.
        bOut(lPos + 3) = bTrans(lTrip And clFourMask)   'Mask for the low set.
        If lLen = 68 Then                               'Ready for a newline
            bOut(lPos + 4) = 13                         'Chr(13) = vbCr
            bOut(lPos + 5) = 10                         'Chr(10) = vbLf
            lLen = 0                                    'Reset the counter
            lPos = lPos + 6
        Else
            lLen = lLen + 4
            lPos = lPos + 4
        End If
    Next lChar

    If bOut(lOutSize) = 10 Then lOutSize = lOutSize - 2 'Shift the padding chars down if it ends with CrLf.

    If iPad = 1 Then                                    'Add the padding chars if any.
        bOut(lOutSize) = 61                             'Chr(61) = "="
    ElseIf iPad = 2 Then
        bOut(lOutSize) = 61
        bOut(lOutSize - 1) = 61
    End If

    Encode64 = StrConv(bOut, vbUnicode)                 'Convert back to a string and return it.

End Function

Public Function Decode64(sString As String) As String

    Dim bOut() As Byte, bIn() As Byte, bTrans(255) As Byte, lPowers6(63) As Long, lPowers12(63) As Long
    Dim lPowers18(63) As Long, lQuad As Long, iPad As Integer, lChar As Long, lPos As Long, sOut As String
    Dim lTemp As Long

    sString = Replace(sString, vbCr, vbNullString)      'Get rid of the vbCrLfs.  These could be in...
    sString = Replace(sString, vbLf, vbNullString)      'either order.

    lTemp = Len(sString) Mod 4                          'Test for valid input.
    If lTemp Then
        Call Err.Raise(vbObjectError, "MyDecode", "Input string is not valid Base64.")
    End If

    If InStrRev(sString, "==") Then                     'InStrRev is faster when you know it's at the end.
        iPad = 2                                        'Note:  These translate to 0, so you can leave them...
    ElseIf InStrRev(sString, "=") Then                  'in the string and just resize the output.
        iPad = 1
    End If

    For lTemp = 0 To 255                                'Fill the translation table.
        Select Case lTemp
            Case 65 To 90
                bTrans(lTemp) = lTemp - 65              'A - Z
            Case 97 To 122
                bTrans(lTemp) = lTemp - 71              'a - z
            Case 48 To 57
                bTrans(lTemp) = lTemp + 4               '1 - 0
            Case 43
                bTrans(lTemp) = 62                      'Chr(43) = "+"
            Case 47
                bTrans(lTemp) = 63                      'Chr(47) = "/"
        End Select
    Next lTemp

    For lTemp = 0 To 63                                 'Fill the 2^6, 2^12, and 2^18 lookup tables.
        lPowers6(lTemp) = lTemp * cl2Exp6
        lPowers12(lTemp) = lTemp * cl2Exp12
        lPowers18(lTemp) = lTemp * cl2Exp18
    Next lTemp

    bIn = StrConv(sString, vbFromUnicode)               'Load the input byte array.
    ReDim bOut((((UBound(bIn) + 1) \ 4) * 3) - 1)       'Prepare the output buffer.

    For lChar = 0 To UBound(bIn) Step 4
        lQuad = lPowers18(bTrans(bIn(lChar))) + lPowers12(bTrans(bIn(lChar + 1))) + _
                lPowers6(bTrans(bIn(lChar + 2))) + bTrans(bIn(lChar + 3))           'Rebuild the bits.
        lTemp = lQuad And clHighMask                    'Mask for the first byte
        bOut(lPos) = lTemp \ cl2Exp16                   'Shift it down
        lTemp = lQuad And clMidMask                     'Mask for the second byte
        bOut(lPos + 1) = lTemp \ cl2Exp8                'Shift it down
        bOut(lPos + 2) = lQuad And clLowMask            'Mask for the third byte
        lPos = lPos + 3
    Next lChar

    sOut = StrConv(bOut, vbUnicode)                     'Convert back to a string.
    If iPad Then sOut = Left$(sOut, Len(sOut) - iPad)   'Chop off any extra bytes.
    Decode64 = sOut

End Function

You could use @> operator to do this something like

SELECT info->>'name'
FROM rabbits
WHERE info->'food' @> '"carrots"';

If you needed to add a lot of integers it'd proabbly be easiest to use a for loop. For example, adding 28 days to a daysInFebruary array.

ArrayList<Integer> daysInFebruary = new ArrayList<>();

for(int i = 1; i <= 28; i++) {
    daysInFebruary.add(i);
}

I see that Character.isDigit perfectly suits the need, since the input will be just one symbol. Of course we don't have any info about this kb object but just in case it's a java.util.Scanner instance, I'd also suggest using java.io.InputStreamReader for command line input. Here's an example:

java.io.BufferedReader reader = new java.io.BufferedReader(new java.io.InputStreamReader(System.in));
try {
  reader.read();
}
catch(Exception e) {
  e.printStackTrace();
}
reader.close();

// SharedPrefHelper is a class contains the get and save sharedPrefernce data
public class SharedPrefHelper {

    // save data in sharedPrefences
    public static void setSharedOBJECT(Context context, String key, 
                                           Object value) {

        SharedPreferences sharedPreferences =  context.getSharedPreferences(
                context.getPackageName(), Context.MODE_PRIVATE);

        SharedPreferences.Editor prefsEditor = sharedPreferences.edit();
        Gson gson = new Gson();
        String json = gson.toJson(value);
        prefsEditor.putString(key, json);
        prefsEditor.apply();
    }

    // get data from sharedPrefences 
    public static Object getSharedOBJECT(Context context, String key) {

         SharedPreferences sharedPreferences = context.getSharedPreferences(
                           context.getPackageName(), Context.MODE_PRIVATE);

        Gson gson = new Gson();
        String json = sharedPreferences.getString(key, "");
        Object obj = gson.fromJson(json, Object.class);
        User objData = new Gson().fromJson(obj.toString(), User.class);
        return objData;
    }
}

// save data in your activity

User user = new User("Hussein","[email protected]","3107310890983");        
SharedPrefHelper.setSharedOBJECT(this,"your_key",user);        
User data = (User) SharedPrefHelper.getSharedOBJECT(this,"your_key");

Toast.makeText(this,data.getName()+"\n"+data.getEmail()+"\n"+data.getPhone(),Toast.LENGTH_LONG).show();

// User is the class you want to save its objects

public class User {

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPhone() {
        return phone;
    }

    public void setPhone(String phone) {
        this.phone = phone;
    }

    private String name,email,phone;
    public User(String name,String email,String phone){
          this.name=name;
          this.email=email;
          this.phone=phone;
    }
}

// put this in gradle

compile 'com.google.code.gson:gson:2.7'

hope this helps you :)

num.toStringAsFixed() rounds. This one turns you num (n) into a string with the number of decimals you want (2), and then parses it back to your num in one sweet line of code:

n = num.parse(n.toStringAsFixed(2));

try: gsub('\\$', '', '$5.00$')

If you want to not use ssh tunnel, in my.cnf or mysqld.cnf you must change 127.0.0.1 with your local ip address (192.168.1.100) in order to have access over the Lan. example bellow:

sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

Search for bind-address in my.cnf or mysqld.cnf

bind-address            =  127.0.0.1

and change 127.0.0.1 to 192.168.1.100 ( local ip address )

bind-address            =  192.168.1.100

To apply the change you made, must restart mysql server using next command.

sudo /etc/init.d/mysql restart

Modify user root for lan acces ( run the query's bellow in remote server that you want to have access )

[email protected]:~$ mysql -u root -p

..

CREATE USER 'root'@'%' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;

If you want to have access only from specific ip address , change 'root'@'%' to 'root'@'( ip address or hostname)'

CREATE USER 'root'@'192.168.1.100' IDENTIFIED BY 'password';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.100' WITH GRANT OPTION;
FLUSH PRIVILEGES;

Then you can connect:

nobus@xray:~$ mysql -h 192.168.1.100 -u root -p

tested on ubuntu 18.04 server

Maven version 3.2.1 added this feature, you can use the -pl switch (shortcut for --projects list) with ! or - (source) to exclude certain submodules.

mvn -pl '!submodule-to-exclude' install
mvn -pl -submodule-to-exclude install

Be careful in bash the character ! is a special character, so you either have to single quote it (like I did) or escape it with the backslash character.

The syntax to exclude multiple module is the same as the inclusion

mvn -pl '!submodule1,!submodule2' install
mvn -pl -submodule1,-submodule2 install

EDIT Windows does not seem to like the single quotes, but it is necessary in bash ; in Windows, use double quotes (thanks @awilkinson)

mvn -pl "!submodule1,!submodule2" install