if nothing else is present. you can launch an xterm and echo in it, like this:

 xterm -e bash -c 'echo "this is the message";echo;echo -n "press enter to continue "; stty sane -echo;answer=$( while ! head -c 1;do true ;done);'

for speed you can do this

WHERE date(created_at) ='2019-10-21'

From the @param wiki page:

Parameters With Properties

If a parameter is expected to have a particular property, you can document that immediately after the @param tag for that parameter, like so:

 /**
  * @param userInfo Information about the user.
  * @param userInfo.name The name of the user.
  * @param userInfo.email The email of the user.
  */
 function logIn(userInfo) {
        doLogIn(userInfo.name, userInfo.email);
 }

There used to be a @config tag which immediately followed the corresponding @param, but it appears to have been deprecated (example here).

Visual studio 2019 version:

The drop down menu was moved to:

• Right click on project (not solution)
• Properties (or Alt + Enter)
• From the left menu select Configuration Properties
• General
• In the middle there is an option called "C++ Language Standard"
• Next to it is the drop down menu
• Here you can select Default, ISO C++ 14, 17 or latest

You should use @RequestParam on those resources with method = RequestMethod.GET

In order to post parameters, you must send them as the request body. A body like JSON or another data representation would depending on your implementation (I mean, consume and produce MediaType).

Typically, multipart/form-data is used to upload files.

Console cons = System.console();

The above code line creates cons as a null reference. The code and output are given below:

Console cons = System.console();
if (cons != null) {
    System.out.println("Enter single character: ");
    char c = (char) cons.reader().read();
    System.out.println(c);
}else{
    System.out.println(cons);
}

Output :

null

The code was tested on macbook pro with java version "1.6.0_37"

Trying to answer specifically to the question (at least the title).

You can also rename local branch, but keeps tracking the old name on the remote.

git branch -m old_branch new_branch
git push --set-upstream origin new_branch:old_branch

Now, when you run git push, the remote old_branch ref is updated with your local new_branch.

You have to know and remember this configuration. But it can be useful if you don't have the choice for the remote branch name, but you don't like it (oh, I mean, you've got a very good reason not to like it !) and prefer a clearer name for your local branch.

Playing with the fetch configuration, you can even rename the local remote-reference. i.e, having a refs/remote/origin/new_branch ref pointer to the branch, that is in fact the old_branch on origin. However, I highly discourage this, for the safety of your mind.

In C++ you cannot initialize any variables directly while the declaration. For this we've to use the concept of constructors.
See this example:-

#include <iostream>

using namespace std;

class A
{
    public:
  const int x;  
  
  A():x(0) //initializing the value of x to 0
  {
      //constructor
  }
};

int main()
{
    A a; //creating object
   cout << "Value of x:- " <<a.x<<endl; 
   
   return 0;
}

Hope it would help you!

You have a date with a known timezone (Here Europe/Madrid), and a target timezone (UTC)

You just need two SimpleDateFormats:

        long ts = System.currentTimeMillis();
        Date localTime = new Date(ts);

        SimpleDateFormat sdfLocal = new SimpleDateFormat ("yyyy/MM/dd HH:mm:ss");
        sdfLocal.setTimeZone(TimeZone.getTimeZone("Europe/Madrid"));

        SimpleDateFormat sdfUTC = new SimpleDateFormat ("yyyy/MM/dd HH:mm:ss");
        sdfUTC.setTimeZone(TimeZone.getTimeZone("UTC"));

        // Convert Local Time to UTC
        Date utcTime = sdfLocal.parse(sdfUTC.format(localTime));
        System.out.println("Local:" + localTime.toString() + "," + localTime.getTime() + " --> UTC time:" + utcTime.toString() + "-" + utcTime.getTime());

        // Reverse Convert UTC Time to Locale time
        localTime = sdfUTC.parse(sdfLocal.format(utcTime));
        System.out.println("UTC:" + utcTime.toString() + "," + utcTime.getTime() + " --> Local time:" + localTime.toString() + "-" + localTime.getTime());

So after see it working you can add this method to your utils:

    public Date convertDate(Date dateFrom, String fromTimeZone, String toTimeZone) throws ParseException {
        String pattern = "yyyy/MM/dd HH:mm:ss";
        SimpleDateFormat sdfFrom = new SimpleDateFormat (pattern);
        sdfFrom.setTimeZone(TimeZone.getTimeZone(fromTimeZone));

        SimpleDateFormat sdfTo = new SimpleDateFormat (pattern);
        sdfTo.setTimeZone(TimeZone.getTimeZone(toTimeZone));

        Date dateTo = sdfFrom.parse(sdfTo.format(dateFrom));
        return dateTo;
    }

I had a very similar issue with the same error message. "Changes not staged for commit", yet when I do a diff it shows differences. I finally figured out that a while back I had changed a directories case. ex. "PostgeSQL" to "postgresql". As I remember now sometimes git will leave a file or two behind in the old case directory. Then you will commit a new version to the new case.

Thus git doesn't know which one to rely on. So to resolve it, I had to go onto the github's website. Then you're able to view both cases. And you must delete all the files in the incorrect cased directory. Be sure that you have the correct version saved off or in the correct cased directory.

Once you have deleted all the files in the old case directory, that whole directory will disappear. Then do a commit.

At this point you should be able to do a Pull on your local computer and not see the conflicts any more. Thus being able to commit again. :)

Ok maybe this one should solve your problem. Note that each time you make a change you call the change() method that releases the wait.

Integer any = new Integer(0);

public synchronized boolean waitTillChange() {
    any.wait();
    return true;
}

public synchronized void change() {
    any.notify();
}

On the SubLogin Form I would expose a SetLocation method so that you can set it from your parent form:

public class SubLogin : Form
{
   public void SetLocation(Point p)
   {
      this.Location = p;
   }
} 

Then, from your main form:

loginForm = new SubLogin();   
Point p = //do math to get point
loginForm.SetLocation(p);
loginForm.Show();

For printing the Name column

df['Name']

Realizing the revision of the code I found the cause of why the reading method did not work for me. The problem was that one of the dependencies that my project used jersey 1.x. Update the version, adjust the client and it works.

I use the following maven dependency:

<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.28</version>

Regards

Carlos Cepeda

I am not sure did you see this list of MS SQL Modules for Node JS

Share your experience after using one if possible .

Good Luck

It depends, but I would say it is better to keep everything in one table for that sake of simplicity.

100,000 rows a day is not really that much of an enormous amount. (Depending on your server hardware). I have personally seen MSSQL handle up to 100M rows in a single table without any problems. As long as your keep your indexes in order it should be all good. The key is to have heaps of memory so that indexes don't have to be swapped out to disk.

On the other hand, it depends on how you are using the data, if you need to make lots of query's, and its unlikely data will be needed that spans multiple days (so you won't need to join the tables) it will be faster to separate out it out into multiple tables. This is often used in applications such as industrial process control where you might be reading the value on say 50,000 instruments every 10 seconds. In this case speed is extremely important, but simplicity is not.

You can achieve this by binding an onclick listener and then adding the animate class like this:

$('#button').onClick(function(){
    $('#target_element').addClass('animate_class_name');
});

css :hover kinda is like js onmouseover

row1 {
    // your css
}
row1:hover {
    color: red;
}
row1:hover #a, .b, .c:nth-child[3] {
    border: 1px solid red;
}

not too sure how it works but css applies styles to echo'ed ids

I would use vbscript (Windows Scripting Host), because in batch I'm sure you cannot tell that a name is a file or a directory.

In vbs, it can be something like this:

Dim fileSystemObject
Set fileSystemObject = CreateObject("Scripting.FileSystemObject")

Dim mainFolder
Set mainFolder = fileSystemObject.GetFolder(myFolder)

Dim files
Set files = mainFolder.Files

For Each file in files
...
Next

Dim subFolders
Set subFolders = mainFolder.SubFolders

For Each folder in subFolders
...
Next

Check FileSystemObject on MSDN.

Using plain javascript:

element.parentNode

In jQuery:

element.parent()

This same issue occurred for me and stack trace

SEVERE: A child container failed during start
java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/XXXXSearch]]
    at java.util.concurrent.FutureTask.report(FutureTask.java:122)
    at java.util.concurrent.FutureTask.get(FutureTask.java:192)
    at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123)
    at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/XXXXSearch]]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154)
    ... 6 more
Caused by: java.lang.IllegalStateException: Unable to complete the scan for annotations for web application [/XXXXSearch]. Possible root causes include a too low setting for -Xss and illegal cyclic inheritance dependencies
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2109)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1981)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1947)
    at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1932)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1326)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    ... 6 more
Caused by: java.lang.StackOverflowError
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)
    at org.apache.catalina.startup.ContextConfig.populateSCIsForCacheEntry(ContextConfig.java:2269)

In my analysis what i found was, this issue is occurred when illegal cyclic inheritance dependencies caused for Tomcat startup annotation processing.

But my project had lot of dependency JARs, and couldn't found which one is responsible for this.

After trying so many unhappy approaches What i did was , I have updated my tomcat plugin to following and ran the same scenario,

<plugin>
    <groupId>org.apache.tomcat.maven</groupId>
    <artifactId>tomcat8-maven-plugin</artifactId>
    <version>3.0-r1756463</version>
<\plugin>

Then i was able to find which JAR is caused to this issue ,

Aug 23, 2017 2:32:12 PM org.apache.catalina.startup.ContextConfig processAnnotationsJar
SEVERE: Unable to process Jar entry [cryptix/test/TestLOKI91.class] from Jar [jar:file:/C:/Users/Tharinda/.m2/repository/cryptix/cryptix/1.2.2/cryptix-1.2.2.jar!/] for annotations
java.io.EOFException
    at org.apache.tomcat.util.bcel.classfile.FastDataInputStream.readUnsignedShort(FastDataInputStream.java:120)
    at org.apache.tomcat.util.bcel.classfile.ClassParser.readAttributes(ClassParser.java:110)
    at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:94)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:1994)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1944)
    at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1919)
    at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1880)
    at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1149)
    at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:771)
    at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:305)
    at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
    at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5120)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1408)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1398)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

Then just solving the issue with cryptix-1.2.2.jar solved this problem.

I strongly recommend to move tomcat8-maven-plugin which seems stable and less buggy at the moment.

You could use the Array.IndexOf method:

string[] stringArray = { "text1", "text2", "text3", "text4" };
string value = "text3";
int pos = Array.IndexOf(stringArray, value);
if (pos > -1)
{
    // the array contains the string and the pos variable
    // will have its position in the array
}

If you're doing the check inside the View, put the value in the ViewBag.

In your controller:

ViewBag["parameterName"] = Request["parameterName"];

It's worth noting that the Request and Response properties are exposed by the Controller class. They have the same semantics as HttpRequest and HttpResponse.

This answer is widely oriented around Git Flow. The tables have been generated with the nice ASCII Table Generator, and the history trees with this wonderful command (aliased as git lg):

git log --graph --abbrev-commit --decorate --date=format:'%Y-%m-%d %H:%M:%S' --format=format:'%C(bold blue)%h%C(reset) - %C(bold cyan)%ad%C(reset) %C(bold green)(%ar)%C(reset)%C(bold yellow)%d%C(reset)%n''          %C(white)%s%C(reset) %C(dim white)- %an%C(reset)'

Tables are in reverse chronological order to be more consistent with the history trees. See also the difference between git merge and git merge --no-ff first (you usually want to use git merge --no-ff as it makes your history look closer to the reality):

git merge

Commands:

Time          Branch "develop"             Branch "features/foo"
------- ------------------------------ -------------------------------
15:04   git merge features/foo
15:03                                  git commit -m "Third commit"
15:02                                  git commit -m "Second commit"
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

* 142a74a - YYYY-MM-DD 15:03:00 (XX minutes ago) (HEAD -> develop, features/foo)
|           Third commit - Christophe
* 00d848c - YYYY-MM-DD 15:02:00 (XX minutes ago)
|           Second commit - Christophe
* 298e9c5 - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

git merge --no-ff

Commands:

Time           Branch "develop"              Branch "features/foo"
------- -------------------------------- -------------------------------
15:04   git merge --no-ff features/foo
15:03                                    git commit -m "Third commit"
15:02                                    git commit -m "Second commit"
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   1140d8c - YYYY-MM-DD 15:04:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/foo' - Christophe
| * 69f4a7a - YYYY-MM-DD 15:03:00 (XX minutes ago) (features/foo)
| |           Third commit - Christophe
| * 2973183 - YYYY-MM-DD 15:02:00 (XX minutes ago)
|/            Second commit - Christophe
* c173472 - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

git merge vs git rebase

First point: always merge features into develop, never rebase develop from features. This is a consequence of the Golden Rule of Rebasing:

The golden rule of git rebase is to never use it on public branches.

In other words:

Never rebase anything you've pushed somewhere.

I would personally add: unless it's a feature branch AND you and your team are aware of the consequences.

So the question of git merge vs git rebase applies almost only to the feature branches (in the following examples, --no-ff has always been used when merging). Note that since I'm not sure there's one better solution (a debate exists), I'll only provide how both commands behave. In my case, I prefer using git rebase as it produces a nicer history tree :)

Between feature branches

git merge

Commands:

Time           Branch "develop"              Branch "features/foo"           Branch "features/bar"
------- -------------------------------- ------------------------------- --------------------------------
15:10   git merge --no-ff features/bar
15:09   git merge --no-ff features/foo
15:08                                                                    git commit -m "Sixth commit"
15:07                                                                    git merge --no-ff features/foo
15:06                                                                    git commit -m "Fifth commit"
15:05                                                                    git commit -m "Fourth commit"
15:04                                    git commit -m "Third commit"
15:03                                    git commit -m "Second commit"
15:02   git checkout -b features/bar
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   c0a3b89 - YYYY-MM-DD 15:10:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/bar' - Christophe
| * 37e933e - YYYY-MM-DD 15:08:00 (XX minutes ago) (features/bar)
| |           Sixth commit - Christophe
| *   eb5e657 - YYYY-MM-DD 15:07:00 (XX minutes ago)
| |\            Merge branch 'features/foo' into features/bar - Christophe
| * | 2e4086f - YYYY-MM-DD 15:06:00 (XX minutes ago)
| | |           Fifth commit - Christophe
| * | 31e3a60 - YYYY-MM-DD 15:05:00 (XX minutes ago)
| | |           Fourth commit - Christophe
* | |   98b439f - YYYY-MM-DD 15:09:00 (XX minutes ago)
|\ \ \            Merge branch 'features/foo' - Christophe
| |/ /
|/| /
| |/
| * 6579c9c - YYYY-MM-DD 15:04:00 (XX minutes ago) (features/foo)
| |           Third commit - Christophe
| * 3f41d96 - YYYY-MM-DD 15:03:00 (XX minutes ago)
|/            Second commit - Christophe
* 14edc68 - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

git rebase

Commands:

Time           Branch "develop"              Branch "features/foo"           Branch "features/bar"
------- -------------------------------- ------------------------------- -------------------------------
15:10   git merge --no-ff features/bar
15:09   git merge --no-ff features/foo
15:08                                                                    git commit -m "Sixth commit"
15:07                                                                    git rebase features/foo
15:06                                                                    git commit -m "Fifth commit"
15:05                                                                    git commit -m "Fourth commit"
15:04                                    git commit -m "Third commit"
15:03                                    git commit -m "Second commit"
15:02   git checkout -b features/bar
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   7a99663 - YYYY-MM-DD 15:10:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/bar' - Christophe
| * 708347a - YYYY-MM-DD 15:08:00 (XX minutes ago) (features/bar)
| |           Sixth commit - Christophe
| * 949ae73 - YYYY-MM-DD 15:06:00 (XX minutes ago)
| |           Fifth commit - Christophe
| * 108b4c7 - YYYY-MM-DD 15:05:00 (XX minutes ago)
| |           Fourth commit - Christophe
* |   189de99 - YYYY-MM-DD 15:09:00 (XX minutes ago)
|\ \            Merge branch 'features/foo' - Christophe
| |/
| * 26835a0 - YYYY-MM-DD 15:04:00 (XX minutes ago) (features/foo)
| |           Third commit - Christophe
| * a61dd08 - YYYY-MM-DD 15:03:00 (XX minutes ago)
|/            Second commit - Christophe
* ae6f5fc - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

From develop to a feature branch

git merge

Commands:

Time           Branch "develop"              Branch "features/foo"           Branch "features/bar"
------- -------------------------------- ------------------------------- -------------------------------
15:10   git merge --no-ff features/bar
15:09                                                                    git commit -m "Sixth commit"
15:08                                                                    git merge --no-ff develop
15:07   git merge --no-ff features/foo
15:06                                                                    git commit -m "Fifth commit"
15:05                                                                    git commit -m "Fourth commit"
15:04                                    git commit -m "Third commit"
15:03                                    git commit -m "Second commit"
15:02   git checkout -b features/bar
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   9e6311a - YYYY-MM-DD 15:10:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/bar' - Christophe
| * 3ce9128 - YYYY-MM-DD 15:09:00 (XX minutes ago) (features/bar)
| |           Sixth commit - Christophe
| *   d0cd244 - YYYY-MM-DD 15:08:00 (XX minutes ago)
| |\            Merge branch 'develop' into features/bar - Christophe
| |/
|/|
* |   5bd5f70 - YYYY-MM-DD 15:07:00 (XX minutes ago)
|\ \            Merge branch 'features/foo' - Christophe
| * | 4ef3853 - YYYY-MM-DD 15:04:00 (XX minutes ago) (features/foo)
| | |           Third commit - Christophe
| * | 3227253 - YYYY-MM-DD 15:03:00 (XX minutes ago)
|/ /            Second commit - Christophe
| * b5543a2 - YYYY-MM-DD 15:06:00 (XX minutes ago)
| |           Fifth commit - Christophe
| * 5e84b79 - YYYY-MM-DD 15:05:00 (XX minutes ago)
|/            Fourth commit - Christophe
* 2da6d8d - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

git rebase

Commands:

Time           Branch "develop"              Branch "features/foo"           Branch "features/bar"
------- -------------------------------- ------------------------------- -------------------------------
15:10   git merge --no-ff features/bar
15:09                                                                    git commit -m "Sixth commit"
15:08                                                                    git rebase develop
15:07   git merge --no-ff features/foo
15:06                                                                    git commit -m "Fifth commit"
15:05                                                                    git commit -m "Fourth commit"
15:04                                    git commit -m "Third commit"
15:03                                    git commit -m "Second commit"
15:02   git checkout -b features/bar
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   b0f6752 - YYYY-MM-DD 15:10:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/bar' - Christophe
| * 621ad5b - YYYY-MM-DD 15:09:00 (XX minutes ago) (features/bar)
| |           Sixth commit - Christophe
| * 9cb1a16 - YYYY-MM-DD 15:06:00 (XX minutes ago)
| |           Fifth commit - Christophe
| * b8ddd19 - YYYY-MM-DD 15:05:00 (XX minutes ago)
|/            Fourth commit - Christophe
*   856433e - YYYY-MM-DD 15:07:00 (XX minutes ago)
|\            Merge branch 'features/foo' - Christophe
| * 694ac81 - YYYY-MM-DD 15:04:00 (XX minutes ago) (features/foo)
| |           Third commit - Christophe
| * 5fd94d3 - YYYY-MM-DD 15:03:00 (XX minutes ago)
|/            Second commit - Christophe
* d01d589 - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

Side notes

git cherry-pick

When you just need one specific commit, git cherry-pick is a nice solution (the -x option appends a line that says "(cherry picked from commit...)" to the original commit message body, so it's usually a good idea to use it - git log <commit_sha1> to see it):

Commands:

Time           Branch "develop"              Branch "features/foo"                Branch "features/bar"
------- -------------------------------- ------------------------------- -----------------------------------------
15:10   git merge --no-ff features/bar
15:09   git merge --no-ff features/foo
15:08                                                                    git commit -m "Sixth commit"
15:07                                                                    git cherry-pick -x <second_commit_sha1>
15:06                                                                    git commit -m "Fifth commit"
15:05                                                                    git commit -m "Fourth commit"
15:04                                    git commit -m "Third commit"
15:03                                    git commit -m "Second commit"
15:02   git checkout -b features/bar
15:01   git checkout -b features/foo
15:00   git commit -m "First commit"

Result:

*   50839cd - YYYY-MM-DD 15:10:00 (XX minutes ago) (HEAD -> develop)
|\            Merge branch 'features/bar' - Christophe
| * 0cda99f - YYYY-MM-DD 15:08:00 (XX minutes ago) (features/bar)
| |           Sixth commit - Christophe
| * f7d6c47 - YYYY-MM-DD 15:03:00 (XX minutes ago)
| |           Second commit - Christophe
| * dd7d05a - YYYY-MM-DD 15:06:00 (XX minutes ago)
| |           Fifth commit - Christophe
| * d0d759b - YYYY-MM-DD 15:05:00 (XX minutes ago)
| |           Fourth commit - Christophe
* |   1a397c5 - YYYY-MM-DD 15:09:00 (XX minutes ago)
|\ \            Merge branch 'features/foo' - Christophe
| |/
|/|
| * 0600a72 - YYYY-MM-DD 15:04:00 (XX minutes ago) (features/foo)
| |           Third commit - Christophe
| * f4c127a - YYYY-MM-DD 15:03:00 (XX minutes ago)
|/            Second commit - Christophe
* 0cf894c - YYYY-MM-DD 15:00:00 (XX minutes ago)
            First commit - Christophe

git pull --rebase

I am not sure I can explain it better than Derek Gourlay... Basically, use git pull --rebase instead of git pull :) What's missing in the article though, is that you can enable it by default:

git config --global pull.rebase true

git rerere

Again, nicely explained here. But put simply, if you enable it, you won't have to resolve the same conflict multiple times anymore.

Most of the answers are in jquery. You can do this perfectly in pure Javascript, simple and no library required. Here it is:

<script type="text/javascript">
window.addEventListener('keydown',function(e){if(e.keyIdentifier=='U+000A'||e.keyIdentifier=='Enter'||e.keyCode==13){if(e.target.nodeName=='INPUT'&&e.target.type=='text'){e.preventDefault();return false;}}},true);
</script>

This code works great because, it only disables the "Enter" keypress action for input type='text'. This means visitors are still able to use "Enter" key in textarea and across all of the web page. They will still be able to submit the form by going to the "Submit" button with "Tab" keys and hitting "Enter".

Here are some highlights:

1. It is in pure javascript (no library required).
2. Not only it checks the key pressed, it confirms if the "Enter" is hit on the input type='text' form element. (Which causes the most faulty form submits
3. Together with the above, user can use "Enter" key anywhere else.
4. It is short, clean, fast and straight to the point.

If you want to disable "Enter" for other actions as well, you can add console.log(e); for your your test purposes, and hit F12 in chrome, go to "console" tab and hit "backspace" on the page and look inside it to see what values are returned, then you can target all of those parameters to further enhance the code above to suit your needs for "e.target.nodeName", "e.target.type" and many more...

you can simply call delay() function. So if you want to delay the process in 3 seconds, call delay(3000)...

What I did was append an extra '/' to my url, e.g.:

String url = "http://www.google.com" 

to

String url = "http://www.google.com/"

This gives accurate results, when checking on a scrollable element (i.e. not window):

// `element` is a native JS HTMLElement
if ( element.scrollTop == (element.scrollHeight - element.offsetHeight) )
    // Element scrolled to bottom

offsetHeight should give the actual visible height of an element (including padding, margin, and scrollbars), and scrollHeight is the entire height of an element including invisible (overflowed) areas.

jQuery's .outerHeight() should give similar result to JS's .offsetHeight -- the documentation in MDN for offsetHeight is unclear about its cross-browser support. To cover more options, this is more complete:

var offsetHeight = ( container.offsetHeight ? container.offsetHeight : $(container).outerHeight() );
if  ( container.scrollTop == (container.scrollHeight - offsetHeight) ) {
   // scrolled to bottom
}

To send an mms for Android 4.0 api 14 or higher without permission to write apn settings, you can use this library: Retrieve mnc and mcc codes from android, then call

Carrier c = Carrier.getCarrier(mcc, mnc);
if (c != null) {
    APN a = c.getAPN();
    if (a != null) {
        String mmsc = a.mmsc;
        String mmsproxy = a.proxy; //"" if none
        int mmsport = a.port; //0 if none
    }
}

To use this, add Jsoup and droid prism jar to the build path, and import com.droidprism.*;

I want to extend MattMitchell's answer by saying you can create an extension method for this functionality:

public static IsEmptyOrWhitespace(this string value) {
    return String.IsEmptyOrWhitespace(value);
}

This makes it possible to call:

string strValue;
if (strValue.IsEmptyOrWhitespace())
     // do stuff

To me this is a lot cleaner than calling the static String function, while still being NullReference safe!

public int[] posStatus;       

public UsersInput()    
{    
    //It means postStatus will contain 9 elements from index 0 to 8. 
    this.posStatus = new int[9];   
}

int intUsersInput = 0;   

if (posStatus[intUsersInput-1] == 0) //if i input 9, it should go to 8?    
{    
    posStatus[intUsersInput-1] += 1; //set it to 1    
} 

From the Security point of view we can use this practical example:

DBCursor makeConnection(String IP,String PORT,String USER,String PASS,String TABLE) {

    // if strings were mutable IP,PORT,USER,PASS can be changed by validate function
    Boolean validated = validate(IP,PORT,USER,PASS);

    // here we are not sure if IP, PORT, USER, PASS changed or not ??
    if (validated) {
         DBConnection conn = doConnection(IP,PORT,USER,PASS);
    }

    // rest of the code goes here ....
}

This can be done without explicitly using hooks provided you add a prop to your component and a state to the stateless component's parent component:

const ParentComponent = props => {
  const [updateNow, setUpdateNow] = useState(true)

  const updateFunc = () => {
    setUpdateNow(!updateNow)
  }

  const MyComponent = props => {
    return (<div> .... </div>)
  }

  const MyButtonComponent = props => {
    return (<div> <input type="button" onClick={props.updateFunc} />.... </div>)
  }

  return (
    <div> 
      <MyComponent updateMe={updateNow} />
      <MyButtonComponent updateFunc={updateFunc}/>
    </div>
  )
}

Came across this issue two days back, spent whole complete two days, So I found that I need to give the access to IUSR user group at DCOMCNFG --> My Computer Properties --> Com Security --> Launch and Activation Permissions --> Edit defaults and give all rights to IUSR.

hope it will help someone....

I do not have a PhD, nor any other kind of degree neither in CS nor math nor indeed any other field. I have no prior experience with Scala nor any other similar language. I have no experience with even remotely comparable type systems. In fact, the only language that I have more than just a superficial knowledge of which even has a type system is Pascal, not exactly known for its sophisticated type system. (Although it does have range types, which AFAIK pretty much no other language has, but that isn't really relevant here.) The other three languages I know are BASIC, Smalltalk and Ruby, none of which even have a type system.

And yet, I have no trouble at all understanding the signature of the map function you posted. It looks to me like pretty much the same signature that map has in every other language I have ever seen. The difference is that this version is more generic. It looks more like a C++ STL thing than, say, Haskell. In particular, it abstracts away from the concrete collection type by only requiring that the argument is IterableLike, and also abstracts away from the concrete return type by only requiring that an implicit conversion function exists which can build something out of that collection of result values. Yes, that is quite complex, but it really is only an expression of the general paradigm of generic programming: do not assume anything that you don't actually have to.

In this case, map does not actually need the collection to be a list, or being ordered or being sortable or anything like that. The only thing that map cares about is that it can get access to all elements of the collection, one after the other, but in no particular order. And it does not need to know what the resulting collection is, it only needs to know how to build it. So, that is what its type signature requires.

So, instead of

map :: (a ? b) ? [a] ? [b]

which is the traditional type signature for map, it is generalized to not require a concrete List but rather just an IterableLike data structure

map :: (IterableLike i, IterableLike j) ? (a ? b) ? i ? j

which is then further generalized by only requiring that a function exists that can convert the result to whatever data structure the user wants:

map :: IterableLike i ? (a ? b) ? i ? ([b] ? c) ? c

I admit that the syntax is a bit clunkier, but the semantics are the same. Basically, it starts from

def map[B](f: (A) ? B): List[B]

which is the traditional signature for map. (Note how due to the object-oriented nature of Scala, the input list parameter vanishes, because it is now the implicit receiver parameter that every method in a single-dispatch OO system has.) Then it generalized from a concrete List to a more general IterableLike

def map[B](f: (A) ? B): IterableLike[B]

Now, it replaces the IterableLike result collection with a function that produces, well, really just about anything.

def map[B, That](f: A ? B)(implicit bf: CanBuildFrom[Repr, B, That]): That

Which I really believe is not that hard to understand. There's really only a couple of intellectual tools you need:

1. You need to know (roughly) what map is. If you gave only the type signature without the name of the method, I admit, it would be a lot harder to figure out what is going on. But since you already know what map is supposed to do, and you know what its type signature is supposed to be, you can quickly scan the signature and focus on the anomalies, like "why does this map take two functions as arguments, not one?"
2. You need to be able to actually read the type signature. But even if you have never seen Scala before, this should be quite easy, since it really is just a mixture of type syntaxes you already know from other languages: VB.NET uses square brackets for parametric polymorphism, and using an arrow to denote the return type and a colon to separate name and type, is actually the norm.
3. You need to know roughly what generic programming is about. (Which isn't that hard to figure out, since it's basically all spelled out in the name: it's literally just programming in a generic fashion).

None of these three should give any professional or even hobbyist programmer a serious headache. map has been a standard function in pretty much every language designed in the last 50 years, the fact that different languages have different syntax should be obvious to anyone who has designed a website with HTML and CSS and you can't subscribe to an even remotely programming related mailinglist without some annoying C++ fanboy from the church of St. Stepanov explaining the virtues of generic programming.

Yes, Scala is complex. Yes, Scala has one of the most sophisticated type systems known to man, rivaling and even surpassing languages like Haskell, Miranda, Clean or Cyclone. But if complexity were an argument against success of a programming language, C++ would have died long ago and we would all be writing Scheme. There are lots of reasons why Scala will very likely not be successful, but the fact that programmers can't be bothered to turn on their brains before sitting down in front of the keyboard is probably not going to be the main one.

Note for anyone running Vagrant: this can be caused by a bug with their shared folders. Specify NFS for your shared folders in your Vagrantfile to avoid this happening.

Simply adding type: "nfs" to the end will do the trick, like so:

config.vm.synced_folder ".", "/vagrant", type: "nfs"

For completeness/interest I'd like to add that matlab does have a function that allows you to operate on data per-row rather than per-element. It is called rowfun (http://www.mathworks.se/help/matlab/ref/rowfun.html), but the only "problem" is that it operates on tables (http://www.mathworks.se/help/matlab/ref/table.html) rather than matrices.

Following commands worked for me :

> npm config set strict-ssl false
> npm cache clean --force

The problem is that you are attempting to install a module from a repository with a bad or untrusted SSL[Secure Sockets Layer] certificate. Once you clean the cache, this problem will be resolved.You might need to turn it to true later on.

or try

trigger_error('Die', E_ERROR);

NSMutableArray *persons = [NSMutableArray array];
for (int i = 0; i < myPersonsCount; i++) {
   [persons addObject:[[Person alloc] init]];
}
NSArray *arrayOfPersons = [NSArray arrayWithArray:persons]; // if you want immutable array

also you can reach this without using NSMutableArray:

NSArray *persons = [NSArray array];
for (int i = 0; i < myPersonsCount; i++) {
   persons = [persons arrayByAddingObject:[[Person alloc] init]];
}

One more thing - it's valid for ARC enabled environment, if you going to use it without ARC don't forget to add autoreleased objects into array!

[persons addObject:[[[Person alloc] init] autorelease];

Goto SolutionExplorer (should be already visible, if not use menu: View->SolutionExplorer).

Find your .cxx file in the solution tree, right click on it and choose "Properties" from the popup menu. You will get window with your file's properties.

Using tree on the left side go to the "C++/Precompiled Headers" section. On the right side of the window you'll get three properties. Set property named "Create/Use Precompiled Header" to the value of "Not Using Precompiled Headers".

Here is a good discussion on the topic. Gavin King recommends @Inject over @EJB for non remote EJBs.

http://www.seamframework.org/107780.lace

or

https://web.archive.org/web/20140812065624/http://www.seamframework.org/107780.lace

Re: Injecting with @EJB or @Inject?

26. Nov 2009, 20:48 America/New_York | Link Gavin King

That error is very strange, since EJB local references should always be serializable. Bug in glassfish, perhaps?

Basically, @Inject is always better, since:

it is more typesafe,
it supports @Alternatives, and
it is aware of the scope of the injected object.

I recommend against the use of @EJB except for declaring references to remote EJBs.

and

Re: Injecting with @EJB or @Inject?

29. Nov 2009, 17:42 America/New_York | Link Gavin King

    Does it mean @EJB better with remote EJBs?

For a remote EJB, we can't declare metadata like qualifiers, @Alternative, etc, on the bean class, since the client simply isn't going to have access to that metadata. Furthermore, some additional metadata must be specified that we don't need for the local case (global JNDI name of whatever). So all that stuff needs to go somewhere else: namely the @Produces declaration.

I have always found Exceptions are much slower to be handled.

Perhaps a less intensive way would yeild a better, faster, result?

public bool IsValidUri(Uri uri)
{

    using (HttpClient Client = new HttpClient())
    {

    HttpResponseMessage result = Client.GetAsync(uri).Result;
    HttpStatusCode StatusCode = result.StatusCode;

    switch (StatusCode)
    {

        case HttpStatusCode.Accepted:
            return true;
        case HttpStatusCode.OK:
            return true;
         default:
            return false;
        }
    }
}

Then just use:

IsValidUri(new Uri("http://www.google.com/censorship_algorithm"));

VB 6 provides a Clipboard object that makes all of this extremely simple and convenient, but unfortunately that's not available from VBA.

If it were me, I'd go the API route. There's no reason to be scared of calling native APIs; the language provides you with the ability to do that for a reason.

However, a simpler alternative is to use the DataObject class, which is part of the Forms library. I would only recommend going this route if you are already using functionality from the Forms library in your app. Adding a reference to this library only to use the clipboard seems a bit silly.

For example, to place some text on the clipboard, you could use the following code:

Dim clipboard As MSForms.DataObject
Set clipboard = New MSForms.DataObject
clipboard.SetText "A string value"
clipboard.PutInClipboard

Or, to copy text from the clipboard into a string variable:

Dim clipboard As MSForms.DataObject
Dim strContents As String

Set clipboard = New MSForms.DataObject
clipboard.GetFromClipboard
strContents = clipboard.GetText

I would definitely suggest using element.getBoundingClientRect().

https://developer.mozilla.org/en-US/docs/Web/API/element.getBoundingClientRect

Summary

Returns a text rectangle object that encloses a group of text rectangles.

Syntax

var rectObject = object.getBoundingClientRect();

Returns

The returned value is a TextRectangle object which is the union of the rectangles returned by getClientRects() for the element, i.e., the CSS border-boxes associated with the element.

The returned value is a TextRectangle object, which contains read-only left, top, right and bottom properties describing the border-box, in pixels, with the top-left relative to the top-left of the viewport.

Here's a browser compatibility table taken from the linked MDN site:

+---------------+--------+-----------------+-------------------+-------+--------+
|    Feature    | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
+---------------+--------+-----------------+-------------------+-------+--------+
| Basic support | 1.0    | 3.0 (1.9)       | 4.0               | (Yes) | 4.0    |
+---------------+--------+-----------------+-------------------+-------+--------+

It's widely supported, and is really easy to use, not to mention that it's really fast. Here's a related article from John Resig: http://ejohn.org/blog/getboundingclientrect-is-awesome/

You can use it like this:

var logo = document.getElementById('hlogo');
var logoTextRectangle = logo.getBoundingClientRect();

console.log("logo's left pos.:", logoTextRectangle.left);
console.log("logo's right pos.:", logoTextRectangle.right);

Here's a really simple example: http://jsbin.com/awisom/2 (you can view and edit the code by clicking "Edit in JS Bin" in the upper right corner).

Or here's another one using Chrome's console:

Note:

I have to mention that the width and height attributes of the getBoundingClientRect() method's return value are undefined in Internet Explorer 8. It works in Chrome 26.x, Firefox 20.x and Opera 12.x though. Workaround in IE8: for width, you could subtract the return value's right and left attributes, and for height, you could subtract bottom and top attributes (like this).

I had a similar issue. I had installed PHPMailer version 1.72 which is not prepared to manage SSL connections. Upgrading to last version solved the problem.

Since none of the other answers seem to answer your specific question (more than half of them show C examples and discuss lower-level languages, your question is for JavaScript) I decided to write my own.

So, here you go:

Simple answer: i-- is generally faster because it doesn't have to run a comparison to 0 each time it runs, test results on various methods are below:

Test results: As "proven" by this jsPerf, arr.pop() is actually the fastest loop by far. But, focusing on --i, i--, i++ and ++i as you asked in your question, here are jsPerf (they are from multiple jsPerf's, please see sources below) results summarized:

--i and i-- are the same in Firefox while i-- is faster in Chrome.

In Chrome a basic for loop (for (var i = 0; i < arr.length; i++)) is faster than i-- and --i while in Firefox it's slower.

In Both Chrome and Firefox a cached arr.length is significantly faster with Chrome ahead by about 170,000 ops/sec.

Without a significant difference, ++i is faster than i++ in most browsers, AFAIK, it's never the other way around in any browser.

Shorter summary: arr.pop() is the fastest loop by far; for the specifically mentioned loops, i-- is the fastest loop.

Sources: http://jsperf.com/fastest-array-loops-in-javascript/15, http://jsperf.com/ipp-vs-ppi-2

I hope this answers your question.

Simple Solution

If you are working with pure html/js/css files.

Install this small server(link) app in chrome. Open the app and point the file location to your project directory.

Goto the url shown in the app.

Edit: Smarter solution using Gulp

Step 1: To install Gulp. Run following command in your terminal.

npm install gulp-cli -g
npm install gulp -D

Step 2: Inside your project directory create a file named gulpfile.js. Copy the following content inside it.

var gulp        = require('gulp');
var bs          = require('browser-sync').create();   

gulp.task('serve', [], () => {
        bs.init({
            server: {
               baseDir: "./",
            },
            port: 5000,
            reloadOnRestart: true,
            browser: "google chrome"
        });
        gulp.watch('./**/*', ['', bs.reload]);
});

Step 3: Install browser sync gulp plugin. Inside the same directory where gulpfile.js is present, run the following command

npm install browser-sync gulp --save-dev

Step 4: Start the server. Inside the same directory where gulpfile.js is present, run the following command

gulp serve

If you want to use this in a more general context, you should make sure, that the socket that you open also gets closed. So the check should be more like this:

import socket
from contextlib import closing

def check_socket(host, port):
    with closing(socket.socket(socket.AF_INET, socket.SOCK_STREAM)) as sock:
        if sock.connect_ex((host, port)) == 0:
            print "Port is open"
        else:
            print "Port is not open"

In windows you can go to the properties of the pem file, and go to the security tab, then to advance button.

remove inheritance and all the permissions. then grant yourself the full control. after all SSL will not give you the same error again.

This depends on the alphabet but for the english one, try this:

String input = "abc".toLowerCase(); //note the to lower case in order to treat a and A the same way
for( int i = 0; i < input.length(); ++i) {
   int position = input.charAt(i) - 'a' + 1;
}

Unless it's just a simplified example for the question, my advice is that drop the batch wrapper and schedule PHP directly, more specifically the php-win.exe program, which won't open unnecessary windows.

Program: c:\program files\php\php-win.exe
Arguments: D:\mydocs\mp\index.php param1 param2

Otherwise, just quote stuff as Andrew points out.

In older versions of Windows, you should be able to put everything in the single "Run" text box (as long as you quote everything that has spaces):

"c:\program files\php\php-win.exe" D:\mydocs\mp\index.php param1 param2

Macs have a builtin /usr/bin/pg_dump command that is used as default.

With the postgresql install you get another binary at /Library/PostgreSQL/<version>/bin/pg_dump

To handle rounding to any number of decimal places, a function with 2 lines of code will suffice for most needs. Here's some sample code to play with.

    var testNum = 134.9567654;
    var decPl = 2;
    var testRes = roundDec(testNum,decPl);  
    alert (testNum + ' rounded to ' + decPl + ' decimal places is ' + testRes);

    function roundDec(nbr,dec_places){
        var mult = Math.pow(10,dec_places);
        return Math.round(nbr * mult) / mult;
    }

The CPU speed varies due to power saving. I originally noticed this because VMware gave me a helpful tip on my laptop, but this page mentions the same thing:

Quote from : VMWare tips and tricks Power saving (SpeedStep, C-states, P-States,...)

Your power saving settings may interfere significantly with vmware's performance. There are several levels of power saving.

CPU frequency

This should not lead to performance degradation, outside of having the obvious lower performance when running the CPU at a lower frequency (either manually of via governors like "ondemand" or "conservative"). The only problem with varying the CPU speed while vmware is running is that the Windows clock will gain of lose time. To prevent this, specify your full CPU speed in kHz in /etc/vmware/config

host.cpukHz = 2167000

From adb --help:

connect <host>:<port>         - Connect to a device via TCP/IP

That's a command-line option by the way.

You should try connecting the phone to your Wi-Fi, and then get its IP address from your router. It's not going to work on the cell network.

The port is 5554.

If you haven't committed the merge, then use:

git merge --abort

If order matters, you should keep a property on the "T" objects in your list that denotes sequence. In order to swap them, just swap the value of that property, and then use that in the .Sort(comparison with sequence property)

check $this->upload->initialize($config); this works fine for me

    $new_image_name = "imgName".time() . str_replace(str_split(' ()\\/,:*?"<>|'), '', 
    $_FILES['userfile']['name']);
    $config = array();
    $config['upload_path'] = './uploads/'; 
    $config['allowed_types'] = 'gif|jpg|png|bmp|jpeg';
    $config['file_name'] = $new_image_name;
    $config['max_size']  = '0';
    $config['upload_path'] = './uploads/';
    $config['allowed_types'] = 'gif|jpg|png|mp4|jpeg';
    $config['file_name'] = url_title("imgsclogo");
    $config['max_size']      = '0';
    $config['overwrite']     = FALSE; 
    $this->upload->initialize($config);
    $this->upload->do_upload();
    $data = $this->upload->data();
}

Dim shll : Set shll = CreateObject("WScript.Shell")
Set Rt = shll.Exec("Notepad") : wscript.sleep 4000 : Rt.Terminate

Run the process with .Exec.

Then wait for 4 seconds.

After that kill this process.

DML have to be committed or rollbacked. DDL cannot.

http://www.orafaq.com/faq/what_are_the_difference_between_ddl_dml_and_dcl_commands

You can switch auto-commit on and that's again only for DML. DDL are never part of transactions and therefore there is nothing like an explicit commit/rollback.

truncate is DDL and therefore commited implicitly.

Edit
I've to say sorry. Like @DCookie and @APC stated in the comments there exist sth like implicit commits for DDL. See here for a question about that on Ask Tom. This is in contrast to what I've learned and I am still a bit curious about.

ORDER BY column1 DESC, column2

This sorts everything by column1 (descending) first, and then by column2 (ascending, which is the default) whenever the column1 fields for two or more rows are equal.

You can get entire post body into a POJO. Following is something similar

@RequestMapping(
    value = { "/api/pojo/edit" }, 
    method = RequestMethod.POST, 
    produces = "application/json", 
    consumes = ["application/json"])
@ResponseBody
public Boolean editWinner( @RequestBody Pojo pojo) { 

Where each field in Pojo (Including getter/setters) should match the Json request object that the controller receives..

Here is a solution for doing it with a single div element with CSS properties, border-radius does the magic.

CSS:

.circle{
    width:100px;
    height:100px;
    border-radius:50px;
    font-size:20px;
    color:#fff;
    line-height:100px;
    text-align:center;
    background:#000
}

HTML:

<div class="circle">Hello</div>

Here's a minimal answer that shows your example working:

<html>
<head>
<title>hello.world.animate()</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"
    type="text/javascript"></script>
<style type="text/css">
#coolDiv {
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    background-color: #ccc;
}
</style>
<script type="text/javascript">
$(document).ready(function() {
    // this way works fine for Firefox, but 
    // Chrome and Safari can't do it.
    $("#coolDiv").animate({'left':0}, "slow");
    // So basically if you *start* with a right position
    // then stick to animating to another right position
    // to do that, get the window width minus the width of your div:
$("#coolDiv").animate({'right':($('body').innerWidth()-$('#coolDiv').width())}, 'slow');
    // sorry that's so ugly!
});
</script>
</head>
<body>
    <div style="" id="coolDiv">HELLO</div>
</body>
</html>

Original Answer:

You have:

$("#coolDiv").animate({"left":"0px", "slow");

Corrected:

$("#coolDiv").animate({"left":"0px"}, "slow");

Documentation: http://api.jquery.com/animate/

KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
keyStore.load(new FileInputStream(new File(keyStoreFile)),
  keyStorePassword.toCharArray());

SSLConnectionSocketFactory socketFactory = new SSLConnectionSocketFactory(
  new SSLContextBuilder()
    .loadTrustMaterial(null, new TrustSelfSignedStrategy())
    .loadKeyMaterial(keyStore, keyStorePassword.toCharArray())
    .build(),
    NoopHostnameVerifier.INSTANCE);

HttpClient httpClient = HttpClients.custom().setSSLSocketFactory(
  socketFactory).build();

ClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory(
  httpClient);
RestTemplate restTemplate = new RestTemplate(requestFactory);
MyRecord record = restTemplate.getForObject(uri, MyRecord.class);
LOG.debug(record.toString());

You can do this:

IEnumerable<object> list = new List<object>(){1, 4, 5}.AsEnumerable();
CallFunction(list);

try this:

.test {
    position:absolute;
    background:blue;
    width:200px;
    height:200px;
    top:40px;
    transition:left 1s linear;
    left: 0;
}

If you are constructing the connection string within the app then you would use your command of connString. If you are using a connection string in the web config. Then you use the "name" of that string.

Hope the below example will help,

echo ${name:0:$((${#name}-10))} --> ${name:start:len}

• In above command, name is the variable.
• start is the string starting point
• len is the length of string that has to be removed.

Example:

    read -p "Enter:" name
    echo ${name:0:$((${#name}-10))}

Output:

    Enter:Siddharth Murugan
    Siddhar

Note: Bash 4.2 added support for negative substring

You can download the gradle you want from Gradle Service by reading the gradle-wrapper.properties.Download it ,unpack it where you like and then change your grandle configuration use local not the recommended.

All those special php expressions, in spirit of first day of ... are great, though they go out of my head time and again.

So I decided to build a couple of basic datetime abstractions and tons of specific implementation which are auto-completed by any IDE. The point is to find what-kind of things. Like, today, now, the first day of a previous month, etc. All of those things I've listed are datetimes. Hence, there is an interface or abstract class called ISO8601DateTime, and specific datetimes which implement it.

The code in your particular case looks like that:

(new TheFirstDayOfThisMonth(new Now()))->value();

For more about this approach, take a look at this entry.

 len(df[df["Lastname"]=="Smith"].values)

Lodash version 3.10.1

Methods compared

• _.merge(object, [sources], [customizer], [thisArg])
• _.assign(object, [sources], [customizer], [thisArg])
• _.extend(object, [sources], [customizer], [thisArg])
• _.defaults(object, [sources])
• _.defaultsDeep(object, [sources])

Similarities

• None of them work on arrays as you might expect
• _.extend is an alias for _.assign, so they are identical
• All of them seem to modify the target object (first argument)
• All of them handle null the same

Differences

• _.defaults and _.defaultsDeep processes the arguments in reverse order compared to the others (though the first argument is still the target object)
• _.merge and _.defaultsDeep will merge child objects and the others will overwrite at the root level
• Only _.assign and _.extend will overwrite a value with undefined

Tests

They all handle members at the root in similar ways.

_.assign      ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.merge       ({}, { a: 'a' }, { a: 'bb' }) // => { a: "bb" }
_.defaults    ({}, { a: 'a' }, { a: 'bb' }) // => { a: "a"  }
_.defaultsDeep({}, { a: 'a' }, { a: 'bb' }) // => { a: "a"  }

_.assign handles undefined but the others will skip it

_.assign      ({}, { a: 'a'  }, { a: undefined }) // => { a: undefined }
_.merge       ({}, { a: 'a'  }, { a: undefined }) // => { a: "a" }
_.defaults    ({}, { a: undefined }, { a: 'bb' }) // => { a: "bb" }
_.defaultsDeep({}, { a: undefined }, { a: 'bb' }) // => { a: "bb" }

They all handle null the same

_.assign      ({}, { a: 'a'  }, { a: null }) // => { a: null }
_.merge       ({}, { a: 'a'  }, { a: null }) // => { a: null }
_.defaults    ({}, { a: null }, { a: 'bb' }) // => { a: null }
_.defaultsDeep({}, { a: null }, { a: 'bb' }) // => { a: null }

But only _.merge and _.defaultsDeep will merge child objects

_.assign      ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "b": "bb" }}
_.merge       ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a", "b": "bb" }}
_.defaults    ({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a" }}
_.defaultsDeep({}, {a:{a:'a'}}, {a:{b:'bb'}}) // => { "a": { "a": "a", "b": "bb" }}

And none of them will merge arrays it seems

_.assign      ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "bb" ] }
_.merge       ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "bb" ] }
_.defaults    ({}, {a:['a']}, {a:['bb']}) // => { "a": [ "a"  ] }
_.defaultsDeep({}, {a:['a']}, {a:['bb']}) // => { "a": [ "a"  ] }

All modify the target object

a={a:'a'}; _.assign      (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.merge       (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.defaults    (a, {b:'bb'}); // a => { a: "a", b: "bb" }
a={a:'a'}; _.defaultsDeep(a, {b:'bb'}); // a => { a: "a", b: "bb" }

None really work as expected on arrays

Note: As @Mistic pointed out, Lodash treats arrays as objects where the keys are the index into the array.

_.assign      ([], ['a'], ['bb']) // => [ "bb" ]
_.merge       ([], ['a'], ['bb']) // => [ "bb" ]
_.defaults    ([], ['a'], ['bb']) // => [ "a"  ]
_.defaultsDeep([], ['a'], ['bb']) // => [ "a"  ]

_.assign      ([], ['a','b'], ['bb']) // => [ "bb", "b" ]
_.merge       ([], ['a','b'], ['bb']) // => [ "bb", "b" ]
_.defaults    ([], ['a','b'], ['bb']) // => [ "a", "b"  ]
_.defaultsDeep([], ['a','b'], ['bb']) // => [ "a", "b"  ]

POST is valid to use instead of GET if you have specific reasons for doing so and process it properly. I understand it's not specifically RESTy, but if you have a bunch of spaces and ampersands and slashes and so on in your data [eg a product model like Amazon] then trying to encode and decode this can be more trouble than it's worth instead of just pre-jsonifying it. Make sure though that you return the proper response codes and heavily comment what you're doing because it's not a typical use case of POST.

In Bootstrap 3.2.0 the "on" event has to be on the document and you have to empty the modal :

$(document).on("hidden.bs.modal", function (e) {
    $(e.target).removeData("bs.modal").find(".modal-content").empty();
});

In Bootstrap 3.1.0 the "on" event can be on the body :

$('body').on('hidden.bs.modal', '.modal', function () {
    $(this).removeData('bs.modal');
});

HashMap<String, String> hashMap = new HashMap<>();
String[] stringValues= new String[hashMap.values().size()];
hashMap.values().toArray(stringValues);

On Visual Studio 6.0

Alt+F9!!!

https://stackoverflow.com/users/1391441/gabriel, does the following address your concern about rnd(.075, 1)? Caveat: returns value as a float

def round_to_n(x, n):
    fmt = '{:1.' + str(n) + 'e}'    # gives 1.n figures
    p = fmt.format(x).split('e')    # get mantissa and exponent
                                    # round "extra" figure off mantissa
    p[0] = str(round(float(p[0]) * 10**(n-1)) / 10**(n-1))
    return float(p[0] + 'e' + p[1]) # convert str to float

>>> round_to_n(750, 2)
750.0
>>> round_to_n(750, 1)
800.0
>>> round_to_n(.0750, 2)
0.075
>>> round_to_n(.0750, 1)
0.08
>>> math.pi
3.141592653589793
>>> round_to_n(math.pi, 7)
3.141593

After a continuous research as suggested by KotiI got resolved the issue.

hduser@ubuntu:~$ cd /usr/local/hadoop

hduser@ubuntu:/usr/local/hadoop$ ls

bin  include  libexec      logs        README.txt  share
etc  lib      LICENSE.txt  NOTICE.txt  sbin

hduser@ubuntu:/usr/local/hadoop$ cd lib

hduser@ubuntu:/usr/local/hadoop/lib$ ls
native

hduser@ubuntu:/usr/local/hadoop/lib$ cd native/

hduser@ubuntu:/usr/local/hadoop/lib/native$ ls

libhadoop.a       libhadoop.so        libhadooputils.a  libhdfs.so
libhadooppipes.a  libhadoop.so.1.0.0  libhdfs.a         libhdfs.so.0.0.0

hduser@ubuntu:/usr/local/hadoop/lib/native$ sudo mv * ../

Cheers

Since this appeared to be a breaking change introduced in version 10 of pip, I downgraded to a compatible version:

pip install 'pip<10' 

This command tells pip to install a version of the module lower than version 10. Do this in a virutalenv so you don't screw up your site installation of Python.

The reason why the sublime documented shortcuts for Mac does not work are they are linked to the shortcuts of other Mac functionalities such as Mission Control, Application Windows, etc. Solution: Go to System Preferences -> Keyboard -> Shortcuts and then un-check the options for Mission Control and Application Windows. Now try "Control + Shift [+ Arrow keys]" for selecting the required text and then move the cursor to the required location without any mouse click, so that the selection can be pasted with the correct indentation at the required location.

Instead of giving access to all IIS users like IIS_IUSRS you can also give access only to the Application Pool Identity using the site. This is the recommended approach by Microsoft and more information can be found here:

https://support.microsoft.com/en-za/help/4466942/understanding-identities-in-iis

https://docs.microsoft.com/en-us/iis/manage/configuring-security/application-pool-identities

Fix:

Start by looking at Config File parameter above to determine the location that needs access. The entire publish folder in this case needs access. Right click on the folder and select properties and then the Security tab.

Click on Edit... and then Add....

Now look at Internet Information Services (IIS) Manager and Application Pools:

In my case my site runs under LocalTest Application Pool and then I enter the name IIS AppPool\LocalTest

Press Check Names and the user should be found.

Give the user the needed access (Default: Read & Execute, List folder contents and Read) and everything should work.

To convert IQuerable or IEnumerable to a list, you can do one of the following:

IQueryable<object> q = ...;
List<object> l = q.ToList();

or:

IQueryable<object> q = ...;
List<object> l = new List<object>(q);

The authenticity token is designed so that you know your form is being submitted from your website. It is generated from the machine on which it runs with a unique identifier that only your machine can know, thus helping prevent cross-site request forgery attacks.

If you are simply having difficulty with rails denying your AJAX script access, you can use

<%= form_authenticity_token %>

to generate the correct token when you are creating your form.

You can read more about it in the documentation.

User Konrad Rudolph advocates for DirectCast() in Stack Overflow question "Hidden Features of VB.NET".

If you want rollback data, firstly you need to execute autocommit =0 and then execute query delete, insert, or update.

After executing the query then execute rollback...

public changeAttr(int id)
{
    list.Find(p => p.IdItem == id).FieldToModify = newValueForTheFIeld;
}

With:

• IdItem is the id of the element you want to modify

• FieldToModify is the Field of the item that you want to update.

• NewValueForTheField is exactly that, the new value.

(It works perfect for me, tested and implemented)

If performance is a priority, use data.table and na.omit() with optional param cols=.

na.omit.data.table is the fastest on my benchmark (see below), whether for all columns or for select columns (OP question part 2).

If you don't want to use data.table, use complete.cases().

On a vanilla data.frame, complete.cases is faster than na.omit() or dplyr::drop_na(). Notice that na.omit.data.frame does not support cols=.

Benchmark result

Here is a comparison of base (blue), dplyr (pink), and data.table (yellow) methods for dropping either all or select missing observations, on notional dataset of 1 million observations of 20 numeric variables with independent 5% likelihood of being missing, and a subset of 4 variables for part 2.

Your results may vary based on length, width, and sparsity of your particular dataset.

Note log scale on y axis.

Benchmark script

#-------  Adjust these assumptions for your own use case  ------------
row_size   <- 1e6L 
col_size   <- 20    # not including ID column
p_missing  <- 0.05   # likelihood of missing observation (except ID col)
col_subset <- 18:21  # second part of question: filter on select columns

#-------  System info for benchmark  ----------------------------------
R.version # R version 3.4.3 (2017-11-30), platform = x86_64-w64-mingw32
library(data.table); packageVersion('data.table') # 1.10.4.3
library(dplyr);      packageVersion('dplyr')      # 0.7.4
library(tidyr);      packageVersion('tidyr')      # 0.8.0
library(microbenchmark)

#-------  Example dataset using above assumptions  --------------------
fakeData <- function(m, n, p){
  set.seed(123)
  m <-  matrix(runif(m*n), nrow=m, ncol=n)
  m[m<p] <- NA
  return(m)
}
df <- cbind( data.frame(id = paste0('ID',seq(row_size)), 
                        stringsAsFactors = FALSE),
             data.frame(fakeData(row_size, col_size, p_missing) )
             )
dt <- data.table(df)

par(las=3, mfcol=c(1,2), mar=c(22,4,1,1)+0.1)
boxplot(
  microbenchmark(
    df[complete.cases(df), ],
    na.omit(df),
    df %>% drop_na,
    dt[complete.cases(dt), ],
    na.omit(dt)
  ), xlab='', 
  main = 'Performance: Drop any NA observation',
  col=c(rep('lightblue',2),'salmon',rep('beige',2))
)
boxplot(
  microbenchmark(
    df[complete.cases(df[,col_subset]), ],
    #na.omit(df), # col subset not supported in na.omit.data.frame
    df %>% drop_na(col_subset),
    dt[complete.cases(dt[,col_subset,with=FALSE]), ],
    na.omit(dt, cols=col_subset) # see ?na.omit.data.table
  ), xlab='', 
  main = 'Performance: Drop NA obs. in select cols',
  col=c('lightblue','salmon',rep('beige',2))
)

All of the answers here work great if your divisor is positive, but it's not quite complete. Here is my implementation which always returns on a range of [0, b), such that the sign of the output is the same as the sign of the divisor, allowing for negative divisors as the endpoint for the output range.

PosMod(5, 3) returns 2
PosMod(-5, 3) returns 1
PosMod(5, -3) returns -1
PosMod(-5, -3) returns -2

    /// <summary>
    /// Performs a canonical Modulus operation, where the output is on the range [0, b).
    /// </summary>
    public static real_t PosMod(real_t a, real_t b)
    {
        real_t c = a % b;
        if ((c < 0 && b > 0) || (c > 0 && b < 0)) 
        {
            c += b;
        }
        return c;
    }

(where real_t can be any number type)

If you are using mac-OS , export JAVA_HOME=/usr/libexec/java_home need to be changed to export JAVA_HOME=$(/usr/libexec/java_home) . Steps to do this :

 $ vim .bash_profile

 export JAVA_HOME=$(/usr/libexec/java_home)

 $ source .bash_profile

where /usr/libexec/java_home is the path of your jvm

In the command prompt, type the command below and press Enter.

bcdedit /enum

Under the Windows Boot Loader sections, make note of the identifier value.

To start in safe mode from command prompt :

bcdedit /set {identifier} safeboot minimal 

Then enter the command line to reboot your computer.

In most browsers, the title attribute will render as a tooltip, and is generally flexible as to what sorts of elements it'll work with.

<span title="This will show as a tooltip">Mouse over for a tooltip!</span>
<a href="http://www.stackoverflow.com" title="Link to stackoverflow.com">stackoverflow.com</a>
<img src="something.png" alt="Something" title="Something">

All of those will render tooltips in most every browser.

First of all you should know the difference between a virtual and abstract method.

Abstract Method

• Abstract Method resides in abstract class and it has no body.
• Abstract Method must be overridden in non-abstract child class.

Virtual Method

• Virtual Method can reside in abstract and non-abstract class.
• It is not necessary to override virtual method in derived but it can be.
• Virtual method must have body ....can be overridden by "override keyword".....

Here's a list : http://delphi.about.com/od/devutilities/a/decompiling_3.htm (and this page mentions some more : http://www.program-transformation.org/Transform/DelphiDecompilers )

I've used DeDe on occasion, but it's not really all that powerfull, and it's not up-to-date with current Delphi versions (latest version it supports is Delphi 7 I believe)

Update for an answer with React Hooks

These are two hooks - one for direction(up/down/none) and one for the actual position

Use like this:

useScrollPosition(position => {
    console.log(position)
  })

useScrollDirection(direction => {
    console.log(direction)
  })

Here are the hooks:

import { useState, useEffect } from "react"

export const SCROLL_DIRECTION_DOWN = "SCROLL_DIRECTION_DOWN"
export const SCROLL_DIRECTION_UP = "SCROLL_DIRECTION_UP"
export const SCROLL_DIRECTION_NONE = "SCROLL_DIRECTION_NONE"

export const useScrollDirection = callback => {
  const [lastYPosition, setLastYPosition] = useState(window.pageYOffset)
  const [timer, setTimer] = useState(null)

  const handleScroll = () => {
    if (timer !== null) {
      clearTimeout(timer)
    }
    setTimer(
      setTimeout(function () {
        callback(SCROLL_DIRECTION_NONE)
      }, 150)
    )
    if (window.pageYOffset === lastYPosition) return SCROLL_DIRECTION_NONE

    const direction = (() => {
      return lastYPosition < window.pageYOffset
        ? SCROLL_DIRECTION_DOWN
        : SCROLL_DIRECTION_UP
    })()

    callback(direction)
    setLastYPosition(window.pageYOffset)
  }

  useEffect(() => {
    window.addEventListener("scroll", handleScroll)
    return () => window.removeEventListener("scroll", handleScroll)
  })
}

export const useScrollPosition = callback => {
  const handleScroll = () => {
    callback(window.pageYOffset)
  }

  useEffect(() => {
    window.addEventListener("scroll", handleScroll)
    return () => window.removeEventListener("scroll", handleScroll)
  })
}

Well, in my case I had to test a Phone Number with the help of regex, and I was getting the same error,

Invalid regular expression: /+923[0-9]{2}-(?!1234567)(?!1111111)(?!7654321)[0-9]{7}/: Nothing to repeat'

So, what was the error in my case was that + operator after the / in the start of the regex. So enclosing the + operator with square brackets [+], and again sending the request, worked like a charm.

Following will work:

/[+]923[0-9]{2}-(?!1234567)(?!1111111)(?!7654321)[0-9]{7}/

This answer may be helpful for those, who got the same type of error, but their chances of getting the error from this point of view, as mine! Cheers :)

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

One to one (1-1) relationship: This is relationship between primary & foreign key (primary key relating to foreign key only one record). this is one to one relationship.

One to Many (1-M) relationship: This is also relationship between primary & foreign keys relationships but here primary key relating to multiple records (i.e. Table A have book info and Table B have multiple publishers of one book).

Many to Many (M-M): Many to many includes two dimensions, explained fully as below with sample.

-- This table will hold our phone calls.
CREATE TABLE dbo.PhoneCalls
(
   ID INT IDENTITY(1, 1) NOT NULL,
   CallTime DATETIME NOT NULL DEFAULT GETDATE(),
   CallerPhoneNumber CHAR(10) NOT NULL
)
-- This table will hold our "tickets" (or cases).
CREATE TABLE dbo.Tickets
(
   ID INT IDENTITY(1, 1) NOT NULL,
   CreatedTime DATETIME NOT NULL DEFAULT GETDATE(),
   Subject VARCHAR(250) NOT NULL,
   Notes VARCHAR(8000) NOT NULL,
   Completed BIT NOT NULL DEFAULT 0
)
-- This table will link a phone call with a ticket.
CREATE TABLE dbo.PhoneCalls_Tickets
(
   PhoneCallID INT NOT NULL,
   TicketID INT NOT NULL
)

IMO the best way to accomplish your goal is to display a numeric keyboard rather than the normal keyboard. This restricts which keys are available to the user. This alleviates the need to do validation, and more importantly it prevents the user from making a mistake. The number pad is also much nicer for entering numbers because the keys are substantially larger.

In interface builder select the UITextField, go to the Attributes Inspector and change the "Keyboard Type" to "Decimal Pad".

That'll make the keyboard look like this:

The only thing left to do is ensure the user doesn't enter in two decimal places. You can do this while they're editing. Add the following code to your view controller. This code removes a second decimal place as soon as it is entered. It appears to the user as if the 2nd decimal never appeared in the first place.

- (void)viewDidLoad
{
  [super viewDidLoad];

  [self.textField addTarget:self
                    action:@selector(textFieldDidChange:)
           forControlEvents:UIControlEventEditingChanged];
}

- (void)textFieldDidChange:(UITextField *)textField
{
  NSString *text = textField.text;
  NSRange range = [text rangeOfString:@"."];

  if (range.location != NSNotFound &&
      [text hasSuffix:@"."] &&
      range.location != (text.length - 1))
  {
    // There's more than one decimal
    textField.text = [text substringToIndex:text.length - 1];
  }
}

Try this :

Proc sql;
  select employee, salary
  from (select * from test having salary < max(salary)) 
   having salary = max(salary)
  ;
Quit;

The way to access a session variable in Twig is:

{{ app.session.get('name_variable') }}

To answer @desmond.carros question, I modified the best answer as follows,

 import random
 file=open("datafile.txt","r")
 data=list()
 for line in file:
    data.append(line.split(#your preferred delimiter))
 file.close()
 random.shuffle(data)
 train_data = data[:int((len(data)+1)*.80)] #Remaining 80% to training set
 test_data = data[int((len(data)+1)*.80):] #Splits 20% data to test set

The code splits the entire dataset to 80% train and 20% test data

Try this.

Dim Workbk as workbook
Set Workbk = thisworkbook

Now everything you program will apply just for your containing macro workbook.

If the required properties need to set in system then there is no option than -D But if you need those properties while bootstrapping an application then loading properties through the properties files is a best option. It will not require to change build for a single property.

AsyncTask to send data as JSONObect via POST Method

public class PostMethodDemo extends AsyncTask<String , Void ,String> {
        String server_response;

        @Override
        protected String doInBackground(String... strings) {
            URL url;
            HttpURLConnection urlConnection = null;

            try {
                url = new URL(strings[0]);
                urlConnection = (HttpURLConnection) url.openConnection();
                urlConnection.setDoOutput(true);
                urlConnection.setDoInput(true);
                urlConnection.setRequestMethod("POST");

                DataOutputStream wr = new DataOutputStream(urlConnection.getOutputStream ());

                try {
                    JSONObject obj = new JSONObject();
                    obj.put("key1" , "value1");
                    obj.put("key2" , "value2");

                    wr.writeBytes(obj.toString());
                    Log.e("JSON Input", obj.toString());
                    wr.flush();
                    wr.close();
                } catch (JSONException ex) {
                    ex.printStackTrace();
                }
                urlConnection.connect();

                int responseCode = urlConnection.getResponseCode();

                if(responseCode == HttpURLConnection.HTTP_OK){
                    server_response = readStream(urlConnection.getInputStream());
                }

            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(String s) {
            super.onPostExecute(s);
            Log.e("Response", "" + server_response);
        }
    }

    public static String readStream(InputStream in) {
        BufferedReader reader = null;
        StringBuffer response = new StringBuffer();
        try {
            reader = new BufferedReader(new InputStreamReader(in));
            String line = "";
            while ((line = reader.readLine()) != null) {
                response.append(line);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            if (reader != null) {
                try {
                    reader.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
        return response.toString();
    }

I never understand the concept of Unit Test but now I know what it's the objective.

A Unit Test is not a complete test. So, it's not a replacement for QA and manual test. The concept of TDD in this aspect is wrong since you can't test everything, including private methods but also, methods that use resources (especially resources that we don't have control). TDD is basing all its quality is something that it could not be achieved.

A Unit test is more a pivot test You mark some arbitrary pivot and the result of pivot should stay the same.

I was able to get this to work thanks to this post utilizing VisualWGet. It worked great for me. The important part seems to be to check the -recursive flag (see image).

Also found that the -no-parent flag is important, othewise it will try to download everything.

this is a mysql function example. I hope it helps. (I have not tested it yet, but should work)

DROP FUNCTION IF EXISTS F_TEST //
CREATE FUNCTION F_TEST(PID INT) RETURNS VARCHAR
BEGIN
/*DECLARE VALUES YOU MAY NEED, EXAMPLE:
  DECLARE NOM_VAR1 DATATYPE [DEFAULT] VALUE;
  */
  DECLARE NAME_FOUND VARCHAR DEFAULT "";

    SELECT EMPLOYEE_NAME INTO NAME_FOUND FROM TABLE_NAME WHERE ID = PID;
  RETURN NAME_FOUND;
END;//

The First Commented code will increment the number while each "Rebuild Project" and save the the value in the "Version Property" file.

The Second Commented code will generate new version name of APK file while "Build APKs".

android {
    compileSdkVersion 28
    buildToolsVersion "29.0.0"
    //==========================START==================================
    def Properties versionProps = new Properties()
    def versionPropsFile = file('version.properties')
    if(versionPropsFile.exists())
        versionProps.load(new FileInputStream(versionPropsFile))
    def code = (versionProps['VERSION_CODE'] ?: "0").toInteger() + 1
    versionProps['VERSION_CODE'] = code.toString()
    versionProps.store(versionPropsFile.newWriter(), null)
    //===========================END===================================
    defaultConfig {
        applicationId "com.example.myapp"
        minSdkVersion 15
        targetSdkVersion 28
        versionCode 1
        versionName "0.19"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            //=======================================START===============================================
            android.applicationVariants.all { variant ->
                variant.outputs.all {
                    def appName = "MyAppSampleName"
                    outputFileName = appName+"_v${variant.versionName}.${versionProps['VERSION_CODE']}.apk"
                }
            }
            //=======================================END===============================================
        }
    }
}

thanks for this post. I want to add something that can be useful.

For IE, it is good to use

object["property"] = value;

syntax because some special words in IE can give you an error.

An example:

object.class = 'value';

this fails in IE, because "class" is a special word. I spent several hours with this.

I had same issue but problem went off after going back and fixing DbContext incorrect syntax issue such as it should have been ExampleDbContextClass: DbContext whereas I had missed DbContext part in Context Class where you define your DbSet. Also, I verified following dependencies are needed in order to achieve connection to SqlServer. <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="3.1.0" /> <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer.Design" Version="1.1.6" /> Also verify that Version you install is less than your project's current version to be on safe side. Such as if your project is using 3.1 do not try to use newer one which would be for example 3.1.9. I had issue with that too.

Use window.intro = "value"; inside the ready function. "value" could be void 0 if you want it to be undefined

The summary at Wikipedia (Software Framework) (first google hit btw) explains it quite well:

A software framework, in computer programming, is an abstraction in which common code providing generic functionality can be selectively overridden or specialized by user code providing specific functionality. Frameworks are a special case of software libraries in that they are reusable abstractions of code wrapped in a well-defined Application programming interface (API), yet they contain some key distinguishing features that separate them from normal libraries.

Software frameworks have these distinguishing features that separate them from libraries or normal user applications:

1. inversion of control - In a framework, unlike in libraries or normal user applications, the overall program's flow of control is not dictated by the caller, but by the framework.[1]
2. default behavior - A framework has a default behavior. This default behavior must actually be some useful behavior and not a series of no-ops.
3. extensibility - A framework can be extended by the user usually by selective overriding or specialized by user code providing specific functionality.
4. non-modifiable framework code - The framework code, in general, is not allowed to be modified. Users can extend the framework, but not modify its code.

You may "need" it because it may provide you with a great shortcut when developing applications, since it contains lots of already written and tested functionality. The reason is quite similar to the reason we use software libraries.

You could use a reflection library, like Ponder:

enum class MyEnum
{
    Zero = 0,
    One  = 1,
    Two  = 2
};

ponder::Enum::declare<MyEnum>()
    .value("Zero", MyEnum::Zero)
    .value("One",  MyEnum::One)
    .value("Two",  MyEnum::Two);

ponder::EnumObject zero(MyEnum::Zero);

zero.name(); // -> "Zero"

Why don't you take a look to this answer

Including javascript files inside javascript files

In short you can load the script file with AJAX or put a script tag on the HTML to include it( before the script that uses the functions of the other script). The link I posted is a great answer and has multiple examples and explanations of both methods.

Putting the various suggestions together, the cleanest version I was able to come up with (without unreliable grep which triggers parts of words) is:

kill -0 $(pidof mysql) 2> /dev/null || echo "Mysql ain't runnin' message/actions"

kill -0 doesn't kill the process but checks if it exists and then returns true, if you don't have pidof on your system, store the pid when you launch the process:

$ mysql &
$ echo $! > pid_stored

then in the script:

kill -0 $(cat pid_stored) 2> /dev/null || echo "Mysql ain't runnin' message/actions"

The answer to this question simply put is: Don't use BOOLEAN with Oracle-- PL/SQL is dumb and it doesn't work. Use another data type to run your process.

A note to SSRS report developers with Oracle datasource: You can use BOOLEAN parameters, but be careful how you implement. Oracle PL/SQL does not play nicely with BOOLEAN, but you can use the BOOLEAN value in the Tablix Filter if the data resides in your dataset. This really tripped me up, because I have used BOOLEAN parameter with Oracle data source. But in that instance I was filtering against Tablix data, not SQL query.

If the data is NOT in your SSRS Dataset Fields, you can rewrite the SQL something like this using an INTEGER parameter:

__

<ReportParameter Name="paramPickupOrders">
  <DataType>Integer</DataType>
  <DefaultValue>
    <Values>
      <Value>0</Value>
    </Values>
  </DefaultValue>
  <Prompt>Pickup orders?</Prompt>
  <ValidValues>
    <ParameterValues>
      <ParameterValue>
        <Value>0</Value>
        <Label>NO</Label>
      </ParameterValue>
      <ParameterValue>
        <Value>1</Value>
        <Label>YES</Label>
      </ParameterValue>
    </ParameterValues>
  </ValidValues>
</ReportParameter>

...

<Query>
<DataSourceName>Gmenu</DataSourceName>
<QueryParameters>
  <QueryParameter Name=":paramPickupOrders">
    <Value>=Parameters!paramPickupOrders.Value</Value>
  </QueryParameter>
<CommandText>
    where 
        (:paramPickupOrders = 0 AND ordh.PICKUP_FLAG = 'N'
        OR :paramPickupOrders = 1 AND ordh.PICKUP_FLAG = 'Y' )

If the data is in your SSRS Dataset Fields, you can use a tablix filter with a BOOLEAN parameter:

__

</ReportParameter>
<ReportParameter Name="paramFilterOrdersWithNoLoad">
  <DataType>Boolean</DataType>
  <DefaultValue>
    <Values>
      <Value>false</Value>
    </Values>
  </DefaultValue>
  <Prompt>Only orders with no load?</Prompt>
</ReportParameter>

...

<Tablix Name="tablix_dsMyData">
<Filters>
  <Filter>
    <FilterExpression>
        =(Parameters!paramFilterOrdersWithNoLoad.Value=false) 
        or (Parameters!paramFilterOrdersWithNoLoad.Value=true and Fields!LOADNUMBER.Value=0)
    </FilterExpression>
    <Operator>Equal</Operator>
    <FilterValues>
      <FilterValue DataType="Boolean">=true</FilterValue>
    </FilterValues>
  </Filter>
</Filters>

If you want to display text inside your own page, you can use the <pre> tag.

document.querySelector('textarea').addEventListener('keyup', function() {_x000D_
  document.querySelector('pre').innerText = this.value;_x000D_
});

<textarea placeholder="type text here"></textarea>_x000D_
<pre style="font-family: inherits">_x000D_
The_x000D_
new lines will_x000D_
be respected_x000D_
      and spaces too_x000D_
</pre>

Use Pattern and Matcher

public class Chk {

    public static void main(String[] args) {

        String s = "test string (67)";
        ArrayList<String> arL = new ArrayList<String>();
        ArrayList<String> inL = new ArrayList<String>();

        Pattern pat = Pattern.compile("\\(\\w+\\)");
        Matcher mat = pat.matcher(s);

        while (mat.find()) {

            arL.add(mat.group());
            System.out.println(mat.group());

        }

        for (String sx : arL) {

            Pattern p = Pattern.compile("(\\w+)");
            Matcher m = p.matcher(sx);

            while (m.find()) {

                inL.add(m.group());
                System.out.println(m.group());
            }
        }

        System.out.println(inL);

    }

}

All your exercise conditionals are separate and the else is only tied to the last if statement. Use else if to bind them all together in the way I believe you intend.

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

For example -

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

You could use Visual Studio Immediate Window

Just paste this (change actual to your object name obviously):

Newtonsoft.Json.JsonConvert.SerializeObject(actual);

It should print object in JSON

You should be able to copy it over textmechanic text tool or notepad++ and replace escaped quotes (\") with " and newlines (\r\n) with empty space, then remove double quotes (") from beginning and end and paste it to jsbeautifier to make it more readable.

UPDATE to OP's comment

public static class Dumper
{
    public static void Dump(this object obj)
    {
        Console.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(obj)); // your logger
    }
}

this should allow you to dump any object.

Hope this saves you some time.

My Experience with this issue using WPF C# coping to clipboard and System.Threading.ThreadStateException is here with my code that worked correctly with all browsers:

Thread thread = new Thread(() => Clipboard.SetText("String to be copied to clipboard"));
thread.SetApartmentState(ApartmentState.STA); //Set the thread to STA
thread.Start(); 
thread.Join();

credits to this post here

But this works only on localhost, so don't try this on a server, as it's not going to work.

On server-side, I did it by using zeroclipboard. The only way, after a lot of research.

The question I would ask is, why are you including the extra columns in your DataTable if they aren't required?

Maybe you should modify your SQL select statement so that it is looking at the specific criteria you are looking for as you are populating your DataTable.

You could also use LINQ to query your DataTable as Enumerable and create a List Object that represents only certain columns.

Other than that, hide the DataGridView Columns that you don't require.

Im going to provide an argument against using socket.io.

I think using socket.io solely because it has fallbacks isnt a good idea. Let IE8 RIP.

In the past there have been many cases where new versions of NodeJS has broken socket.io. You can check these lists for examples... https://github.com/socketio/socket.io/issues?q=install+error

If you go to develop an Android app or something that needs to work with your existing app, you would probably be okay working with WS right away, socket.io might give you some trouble there...

Plus the WS module for Node.JS is amazingly simple to use.

• You must add @Bean public RestTemplate restTemplate(RestTemplateBuilder builder){ return builder.build(); }

A single tick represents one hundred nanoseconds or one ten-millionth of a second. FROM MSDN.

So 28 000 000 000 * 1/10 000 000 = 2 800 sec. 2 800 sec /60 = 46.6666min

Or you can do it programmaticly with TimeSpan:

    static void Main()
    {
        TimeSpan ts = TimeSpan.FromTicks(28000000000);
        double minutesFromTs = ts.TotalMinutes;
        Console.WriteLine(minutesFromTs);
        Console.Read();
    }

Both give me 46 min and not 480 min...

When you're running npm install in the project's root, it installs all of the npm dependencies into the project's node_modules directory.

If you take a look at the project's node_modules directory, you should see a directory called http-server, which holds the http-server package, and a .bin folder, which holds the executable binaries from the installed dependencies. The .bin directory should have the http-server binary (or a link to it).

So in your case, you should be able to start the http-server by running the following from your project's root directory (instead of npm start):

./node_modules/.bin/http-server -a localhost -p 8000 -c-1

This should have the same effect as running npm start.

If you're running a Bash shell, you can simplify this by adding the ./node_modules/.bin folder to your $PATH environment variable:

export PATH=./node_modules/.bin:$PATH

This will put this folder on your path, and you should be able to simply run

http-server -a localhost -p 8000 -c-1

Turn off the JavaScript Validator in the "Builders" config for your project:

1. Right click your project
2. Select Properties -> Builders
3. Uncheck the "JavaScript Validator"

Then either restart your Eclipse or/and rename the .js to something like .js_ then back again.

import java.math.*;
public class TestRound11 {
  public static void main(String args[]){
    double d = 3.1537;
    BigDecimal bd = new BigDecimal(d);
    bd = bd.setScale(2,BigDecimal.ROUND_HALF_UP);
    // output is 3.15
    System.out.println(d + " : " + round(d, 2));
    // output is 3.154
    System.out.println(d + " : " + round(d, 3));
  }

  public static double round(double d, int decimalPlace){
    // see the Javadoc about why we use a String in the constructor
    // http://java.sun.com/j2se/1.5.0/docs/api/java/math/BigDecimal.html#BigDecimal(double)
    BigDecimal bd = new BigDecimal(Double.toString(d));
    bd = bd.setScale(decimalPlace,BigDecimal.ROUND_HALF_UP);
    return bd.doubleValue();
  }
}

Works fine for me, please try:

.scroll-container {
  max-height: 250px;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

Short answer: Most likely, no you do not need a content-type header for HTTP GET requests. But the specs does not seem to rule out a content-type header for HTTP GET, either.

Supporting materials:

1. "Content-Type" is part of the representation (i.e. payload) metadata. Quoted from RFC 7231 section 3.1:

   3.1. Representation Metadata

   Representation header fields provide metadata about the representation. When a message includes a payload body, the representation header fields describe how to interpret the representation data enclosed in the payload body. ...

   The following header fields convey representation metadata:

   +-------------------+-----------------+
   | Header Field Name | Defined in...   |
   +-------------------+-----------------+
   | Content-Type      | Section 3.1.1.5 |
   | ...               | ...             |
   

   Quoted from RFC 7231 section 3.1.1.5(by the way, the current chosen answer had a typo in the section number):

   The "Content-Type" header field indicates the media type of the associated representation

2. In that sense, a Content-Type header is not really about an HTTP GET request (or a POST or PUT request, for that matter). It is about the payload inside such a whatever request. So, if there will be no payload, there needs no Content-Type. In practice, some implementation went ahead and made that understandable assumption. Quoted from Adam's comment:

   "While ... the spec doesn't say you can't have Content-Type on a GET, .Net seems to enforce it in it's HttpClient. See this SO q&a."

3. However, strictly speaking, the specs itself does not rule out the possibility of HTTP GET contains a payload. Quoted from RFC 7231 section 4.3.1:

   4.3.1 GET

   ...

   A payload within a GET request message has no defined semantics; sending a payload body on a GET request might cause some existing implementations to reject the request.

   So, if your HTTP GET happens to include a payload for whatever reason, a Content-Type header is probably reasonable, too.

The closest I have been able to find is called 3taps. 3taps was sued by Craigslist with the result that "access to public data on a public website can be selectively censored by blacklisting certain viewers (i.e. competitors)", and thus states that "3taps will therefore access the very same data exclusively from public sources that retain open and equal access rights to public data".

If this is related to docker, try stopping the erroneous container and starting a new container using docker run command from the same image.

If you need that in js code. You can use injected method of angula-filter lib. Like this.

function controller($scope, $http, groupByFilter) {     

   var groupedData = groupByFilter(originalArray, 'groupPropName');

}

https://github.com/a8m/angular-filter/wiki/Common-Questions#inject-filters

You can use a trick, by creating a <a>-element, then setting the string to the href of that <a>-element and then you have a Location object you can get the hostname from.

You could either add a method to the String prototype:

String.prototype.toLocation = function() {
    var a = document.createElement('a');
    a.href = this;
    return a;
};

and use it like this:
"http://www.abc.com/search".toLocation().hostname

or make it a function:

function toLocation(url) {
    var a = document.createElement('a');
    a.href = url;
    return a;
};

and use it like this:
toLocation("http://www.abc.com/search").hostname

both of these will output: "www.abc.com"

If you also need the protocol, you can do something like this:

var url = "http://www.abc.com/search".toLocation();
url.protocol + "//" + url.hostname

which will output: "http://www.abc.com"

I had a lab with App Review team (WWDC20).

My questions were:

1. My app is making calls through HTTPS only. Should I select Yes or No?
2. Should I send report to the US government if my app available in Germany only (doesn't available in the USA)?

Answers:

1. If you just use HTTPS you can select No

2. The answer on the second question was unclear. Helpful link Looks like yes if you're using custom encryption.

Here is my approach, i've tried to keep it slim:

HTML:

<div class="noload">
    <span class="loadtext" id="loadspan">50%</span>
    <div class="load" id="loaddiv">
    </div>
</div>

CSS:

.load{    
    width: 50%;
    height: 12px;
    background: url( data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAALCAYAAAC+jufvAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwAAADsABataJCQAAABp0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjUuMTAw9HKhAAAAPklEQVQYV2M48Gvvf4ZDv/b9Z9j7Fcha827Df4alr1b9Z1j4YsV/BuML3v8ZTC/7/GcwuwokrG4DCceH/v8Bs2Ef1StO/o0AAAAASUVORK5CYII=);  
    -moz-border-radius: 4px;
    border-radius: 4px;
}

.noload{
    width: 100px;    
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAALCAYAAAC+jufvAAAABGdBTUEAALGPC/xhBQAAAAlwSFlzAAAOwAAADsABataJCQAAABp0RVh0U29mdHdhcmUAUGFpbnQuTkVUIHYzLjUuMTAw9HKhAAAANUlEQVQYVy3EIQ4AQQgEwfn/zwghCMwGh8Tj+8yVKN0d2l00M6i70XsPmdmfu6OIQJmJqooPOu8mqi//WKcAAAAASUVORK5CYII=);     
    -moz-border-radius: 4px;
    border-radius: 4px;
    border: 1px solid #999999;    
    position: relative;
}

.loadtext {
    font-family: Consolas;    
    font-size: 11px;
    color: #000000;
    position: absolute;
    bottom: -1px;
}

Fiddle: here

if you have a hive setup you can put the local dataset directly using Hive load command in hdfs/s3.

You will need to use "Local" keyword when writing your load command.

Syntax for hiveload command

LOAD DATA [LOCAL] INPATH 'filepath' [OVERWRITE] INTO TABLE tablename [PARTITION (partcol1=val1, partcol2=val2 ...)]

Refer below link for more detailed information. https://cwiki.apache.org/confluence/display/Hive/LanguageManual%20DML#LanguageManualDML-Loadingfilesintotables

I'm not sure why you think the documentation is vague.

It simply goes through all the parameters one by one, and returns the first that is NOT NULL.

COALESCE(NULL, NULL, NULL, 1, 2, 3)
=> 1


COALESCE(1, 2, 3, 4, 5, NULL)
=> 1


COALESCE(NULL, NULL, NULL, 3, 2, NULL)
=> 3


COALESCE(6, 5, 4, 3, 2, NULL)
=> 6


COALESCE(NULL, NULL, NULL, NULL, NULL, NULL)
=> NULL

It accepts pretty much any number of parameters, but they should be the same data-type. (If they're not the same data-type, they get implicitly cast to an appropriate data-type using data-type order of precedence.)

It's like ISNULL() but for multiple parameters, rather than just two.

It's also ANSI-SQL, where-as ISNULL() isn't.

If you want to add the elements in a list (list2) to the end of other list (list), then you can use the list extend method

list = [1, 2, 3]
list2 = [4, 5, 6]
list.extend(list2)
print list
[1, 2, 3, 4, 5, 6]

Or if you want to concatenate two list then you can use + sign

list3 = list + list2
print list3
[1, 2, 3, 4, 5, 6]

If anyone is getting this error from a function, try using a reference to the abstract class in the parameters instead.

void something(Abstract bruh){
}

to

void something(Abstract& bruh){
}

Best thing to do would be to overload operator<< yourself, so that QString can be passed as a type to any library expecting an output-able type.

std::ostream& operator<<(std::ostream& str, const QString& string) {
    return str << string.toStdString();
}

I just wrote this little batch script. It isn't as sophisticated as the Unix "tail", but hopefully someone can add on to it to improve it, like limiting the output to the last 10 lines of the file, etc. If you do improve this script, please send it to me at robbing ~[at]~ gmail.com.

@echo off

:: This is a batch script I wrote to mimic the 'tail' UNIX command.
:: It is far from perfect, but I am posting it in the hopes that it will
:: be improved by other people. This was designed to work on Windows 7.
:: I have not tested it on any other versions of Windows

if "%1" == "" goto noarg
if "%1" == "/?" goto help
if "%1" == "-?" goto help
if NOT EXIST %1 goto notfound
set taildelay=%2
if "%taildelay%"=="" set taildelay=1

:loop
cls
type %1

:: I use the CHOICE command to create a delay in batch.

CHOICE /C YN /D Y /N /T %taildelay%
goto loop

:: Error handlers

:noarg
echo No arguments given. Try /? for help.
goto die

:notfound
echo The file '%1' could not be found.
goto die

:: Help text

:help
echo TAIL filename [seconds]

:: I use the call more pipe as a way to insert blank lines since echo. doesnt
:: seem to work on Windows 7

call | more
echo Description:
echo     This is a Windows version of the UNIX 'tail' command.
echo     Written completely from scratch by Andrey G.
call | more
echo Parameters:
echo    filename             The name of the file to display
call | more
echo    [seconds]            The number of seconds to delay before reloading the
echo                         file and displaying it again. Default is set to 1
call | more
echo ú  /?                   Displays this help message
call | more
echo    NOTE:
echo    To exit while TAIL is running, press CTRL+C.
call | more
echo Example:
echo    TAIL foo 5
call | more
echo    Will display the contents of the file 'foo',
echo    refreshing every 5 seconds.
call | more

:: This is the end

:die

/* Function to remove white spaces on both sides of a string i.e trim */

void trim (char *s)
{
    int i;

    while (isspace (*s)) s++;   // skip left side white spaces
    for (i = strlen (s) - 1; (isspace (s[i])); i--) ;   // skip right side white spaces
    s[i + 1] = '\0';
    printf ("%s\n", s);
}

you need to do the process for all individual languages you work on...

Starting with CMake 3.15, the correct way of achieving this would be using:

cmake --install <dir> --prefix "/usr"

Official Documentation

To get the bottom 1000 you will want to order it by a column in descending order, and still take the top 1000.

SELECT TOP 1000 *
FROM [SomeTable]
ORDER BY MySortColumn DESC

If you care for it to be in the same order as before you can use a common table expression for that:

;WITH CTE AS (
    SELECT TOP 1000 *
    FROM [SomeTable]
    ORDER BY MySortColumn DESC
)

SELECT * 
FROM CTE
ORDER BY MySortColumn

Inspired by the insightful answers on this page, I created a mixed approach, which I consider the simplest and more flexible one. What do you think?

First, I define the usage in a variable, which allows me to reuse it in different contexts. The format is very simple, almost WYSIWYG, without the need to add any control characters. This seems reasonably portable to me (I ran it on MacOS and Ubuntu)

__usage="
Usage: $(basename $0) [OPTIONS]

Options:
  -l, --level <n>              Something something something level
  -n, --nnnnn <levels>         Something something something n
  -h, --help                   Something something something help
  -v, --version                Something something something version
"

Then I can simply use it as

echo "$__usage"

or even better, when parsing parameters, I can just echo it there in a one-liner:

levelN=${2:?"--level: n is required!""${__usage}"}

Generate cryptographically strong, random (potentially) 8-character string using the openssl_random_pseudo_bytes function:

echo bin2hex(openssl_random_pseudo_bytes(4));

Procedural way:

function randomString(int $length): string
{
    return bin2hex(openssl_random_pseudo_bytes($length));
}

Update:

PHP7 introduced the random_x() functions which should be even better. If you come from PHP 5.X, use excellent paragonie/random_compat library which is a polyfill for random_bytes() and random_int() from PHP 7.

function randomString($length)
{
    return bin2hex(random_bytes($length));
}

This XPath is specific to the code snippet you've provided. To select <child> with id as #grand you can write //child[@id='#grand'].

To get age //child[@id='#grand']/@age

Hope this helps

Without annotations, inferred property name (to match from JSON) would be "set", and not -- as seems to be the intent -- "isSet". This is because as per Java Beans specification, methods of form "isXxx" and "setXxx" are taken to mean that there is logical property "xxx" to manage.

As mentioned by ecdpalma below, git 1.7.12+ (August 2012) has enhanced the option --root for git rebase:

"git rebase [-i] --root $tip" can now be used to rewrite all the history leading to "$tip" down to the root commit.

That new behavior was initially discussed here:

I personally think "git rebase -i --root" should be made to just work without requiring "--onto" and let you "edit" even the first one in the history.
It is understandable that nobody bothered, as people are a lot less often rewriting near the very beginning of the history than otherwise.

The patch followed.

(original answer, February 2010)

As mentioned in the Git FAQ (and this SO question), the idea is:

1. Create new temporary branch
2. Rewind it to the commit you want to change using git reset --hard
3. Change that commit (it would be top of current HEAD, and you can modify the content of any file)

4. Rebase branch on top of changed commit, using:

   git rebase --onto <tmp branch> <commit after changed> <branch>`
   

The trick is to be sure the information you want to remove is not reintroduced by a later commit somewhere else in your file. If you suspect that, then you have to use filter-branch --tree-filter to make sure the content of that file does not contain in any commit the sensible information.

In both cases, you end up rewriting the SHA1 of every commit, so be careful if you have already published the branch you are modifying the contents of. You probably shouldn’t do it unless your project isn’t yet public and other people haven’t based work off the commits you’re about to rewrite.

Open Event Viewer go to window logs->Application and look at the errors prior to this error it will give you the actual error you looking to solve

Html.ActionLink generates an <a href=".."></a> tag automatically.

Url.Action generates only an url.

For example:

@Html.ActionLink("link text", "actionName", "controllerName", new { id = "<id>" }, null)

generates:

<a href="/controllerName/actionName/<id>">link text</a>

and

@Url.Action("actionName", "controllerName", new { id = "<id>" }) 

generates:

/controllerName/actionName/<id>

Best plus point which I like is using Url.Action(...)

You are creating anchor tag by your own where you can set your own linked text easily even with some other html tag.

<a href="@Url.Action("actionName", "controllerName", new { id = "<id>" })">

   <img src="<ImageUrl>" style"width:<somewidth>;height:<someheight> />

   @Html.DisplayFor(model => model.<SomeModelField>)
</a>

I had these SQL behavior settings enabled on options query execution: ANSI SET IMPLICIT_TRANSACTIONS checked. On execution of your query e.g create, alter table or stored procedure, you have to COMMIT it.

Just type COMMIT and execute it F5

Instead of removing NS you can try removing replicaSet

kubectl get rs --all-namespaces

Then delete the replicaSet

kubectl delete rs your_app_name

You need to reference both Microsoft.ReportViewer.WebForms and Microsoft.ReportViewer.Common and set the CopyLocal property to true. This will result in the dll's being copied to our bin directory (both are necessary).

There may be an elegant built-in function (but I haven't found it yet). You could write one:

# reorder columns
def set_column_sequence(dataframe, seq, front=True):
    '''Takes a dataframe and a subsequence of its columns,
       returns dataframe with seq as first columns if "front" is True,
       and seq as last columns if "front" is False.
    '''
    cols = seq[:] # copy so we don't mutate seq
    for x in dataframe.columns:
        if x not in cols:
            if front: #we want "seq" to be in the front
                #so append current column to the end of the list
                cols.append(x)
            else:
                #we want "seq" to be last, so insert this
                #column in the front of the new column list
                #"cols" we are building:
                cols.insert(0, x)
return dataframe[cols]

For your example: set_column_sequence(df, ['x','y']) would return the desired output.

If you want the seq at the end of the DataFrame instead simply pass in "front=False".

Try something like this:

with toupdate as (
    select p.*,
           (coalesce(max(interfaceid) over (), 0) +
            row_number() over (order by (select NULL))
           ) as newInterfaceId
    from prices
   )
update p
    set interfaceId = newInterfaceId
    where interfaceId is NULL

This doesn't quite make them consecutive, but it does assign new higher ids. To make them consecutive, try this:

with toupdate as (
    select p.*,
           (coalesce(max(interfaceid) over (), 0) +
            row_number() over (partition by interfaceId order by (select NULL))
           ) as newInterfaceId
    from prices
   )
update p
    set interfaceId = newInterfaceId
    where interfaceId is NULL

var idPost=document.getElementById("status").innerHTML;

The 'status' element does not exist in your webpage.

So document.getElementById("status") return null. While you can not use innerHTML property of NULL.

You should add a condition like this:

if(document.getElementById("status") != null){
    var idPost=document.getElementById("status").innerHTML;
}

Hope this answer can help you. :)

If you want your dates to conform a particular format or formats then use DateTime.TryParseExact otherwise that is the default behaviour of DateTime.TryParse

DateTime.TryParse

This method tries to ignore unrecognized data, if possible, and fills in missing month, day, and year information with the current date. If s contains only a date and no time, this method assumes the time is 12:00 midnight. If s includes a date component with a two-digit year, it is converted to a year in the current culture's current calendar based on the value of the Calendar.TwoDigitYearMax property. Any leading, inner, or trailing white space character in s is ignored.

If you want to confirm against multiple formats then look at DateTime.TryParseExact Method (String, String[], IFormatProvider, DateTimeStyles, DateTime) overload. Example from the same link:

string[] formats= {"M/d/yyyy h:mm:ss tt", "M/d/yyyy h:mm tt", 
                   "MM/dd/yyyy hh:mm:ss", "M/d/yyyy h:mm:ss", 
                   "M/d/yyyy hh:mm tt", "M/d/yyyy hh tt", 
                   "M/d/yyyy h:mm", "M/d/yyyy h:mm", 
                   "MM/dd/yyyy hh:mm", "M/dd/yyyy hh:mm"};
string[] dateStrings = {"5/1/2009 6:32 PM", "05/01/2009 6:32:05 PM", 
                        "5/1/2009 6:32:00", "05/01/2009 06:32", 
                        "05/01/2009 06:32:00 PM", "05/01/2009 06:32:00"}; 
DateTime dateValue;

foreach (string dateString in dateStrings)
{
   if (DateTime.TryParseExact(dateString, formats, 
                              new CultureInfo("en-US"), 
                              DateTimeStyles.None, 
                              out dateValue))
      Console.WriteLine("Converted '{0}' to {1}.", dateString, dateValue);
   else
      Console.WriteLine("Unable to convert '{0}' to a date.", dateString);
}
// The example displays the following output: 
//       Converted '5/1/2009 6:32 PM' to 5/1/2009 6:32:00 PM. 
//       Converted '05/01/2009 6:32:05 PM' to 5/1/2009 6:32:05 PM. 
//       Converted '5/1/2009 6:32:00' to 5/1/2009 6:32:00 AM. 
//       Converted '05/01/2009 06:32' to 5/1/2009 6:32:00 AM. 
//       Converted '05/01/2009 06:32:00 PM' to 5/1/2009 6:32:00 PM. 
//       Converted '05/01/2009 06:32:00' to 5/1/2009 6:32:00 AM.

Try this

myDataTable.Select("[Name] is NULL OR [Name] <> 'n/a'" )

Edit: Relevant sources:

• DataTable.Select Method (String)
• Expression filtering syntax

You can wrap all tasks which can fail in block, and use ignore_errors: yes with that block.

tasks:
  - name: ls
    command: ls -la
  - name: pwd
    command: pwd

  - block:
    - name: ls non-existing txt file
      command: ls -la no_file.txt
    - name: ls non-existing pic
      command: ls -la no_pic.jpg
    ignore_errors: yes 

Read more about error handling in blocks here.

SSLHandshakeException can be resolved 2 ways.

1. Incorporating SSL

   • Get the SSL (by asking the source system administrator, can also be downloaded by openssl command, or any browsers downloads the certificates)

   • Add the certificate into truststore (cacerts) located at JRE/lib/security

   • provide the truststore location in vm arguments as "-Djavax.net.ssl.trustStore="

2. Ignoring SSL

   For this #2, please visit my other answer on another stackoverflow website: How to ingore SSL verification Ignore SSL Certificate Errors with Java

Here is a method that returns the image dimensions:

from PIL import Image
import os

def get_image_dimensions(imagefile):
    """
    Helper function that returns the image dimentions

    :param: imagefile str (path to image)
    :return dict (of the form: {width:<int>, height=<int>, size_bytes=<size_bytes>)
    """
    # Inline import for PIL because it is not a common library
    with Image.open(imagefile) as img:
        # Calculate the width and hight of an image
        width, height = img.size

    # calculat ethe size in bytes
    size_bytes = os.path.getsize(imagefile)

    return dict(width=width, height=height, size_bytes=size_bytes)

There's no need to add space before closing quote if path doesn't contain trailing backslash, so following command should work:

robocopy "C:\Source Path" "C:\Destination Path" /option1 /option2...

But, following will not work:

robocopy "C:\Source Path\" "C:\Destination Path\" /option1 /option2...

This is due to the escaping issue that is described here:

The \ escape can cause problems with quoted directory paths that contain a trailing backslash because the closing quote " at the end of the line will be escaped \".

public class ListElementAdapter extends BaseAdapter{

    String[] data;
    Context context;
    LayoutInflater layoutInflater;


    public ListElementAdapter(String[] data, Context context) {
        super();
        this.data = data;
        this.context = context;
        layoutInflater = LayoutInflater.from(context);
    }

    @Override
    public int getCount() {

        return data.length;
    }

    @Override
    public Object getItem(int position) {

        return null;
    }

    @Override
    public long getItemId(int position) {

        return position;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {


        convertView= layoutInflater.inflate(R.layout.item, null);

        TextView txt=(TextView)convertView.findViewById(R.id.text);

        txt.setText(data[position]);



        return convertView;
    }
}

Just call ListElementAdapter in your Main Activity and set Adapter to ListView.

I know an answer has already been accepted, but wanted to point a few things out.

Setting the content-type and charset is obviously a good practice, doing it on the server is much better, because it ensures consistency across your application.

However, I would use UTF-8 only when the language of my application uses a lot of characters that are available only in the UTF-8 charset. If you want to show a unicode character or symbol in one of cases, you can do so without changing the charset of your page.

HTML renderers have always been able to display symbols which are not part of the encoding character set of the page, as long as you mention the symbol in its numeric character reference (NCR). Sounds weird but its true.

So, even if your html has a header that states it has an encoding of ansi or any of the iso charsets, you can display a check mark by using its html character reference, in decimal - &#10003; or in hex - &#x2713;

So its a little difficult to understand why you are facing this issue on your pages. Can you check if the NCR value is correct, this is a good reference http://www.fileformat.info/info/unicode/char/2713/index.htm

This is a much simpler example for people only looking for removable usb drives.

using System.IO;

foreach (DriveInfo drive in DriveInfo.GetDrives())
{
    if (drive.DriveType == DriveType.Removable)
    {
        Console.WriteLine(string.Format("({0}) {1}", drive.Name.Replace("\\",""), drive.VolumeLabel));
    }
}

It is possible to get a web application running in full screen in both iOS and Android, it is called a PWA and after mucha hard work, it was the only way around this issue.

PWAs open a number of interesting options for development that should not be missed. I've made a couple already, check out this Public and Private Tender Manual For Designers (Spanish). And here is an English explanation from the CosmicJS site

Strangely enough, the reason for my failure was about the CamelCase that I was applying to the component name. MyComponent was giving me this error but then I renamed it to Mycomponent and voila, it worked!!!

None of the above worked for me either;

• Dlls were set to Copy Local
• Adding namespaces to both web.configs did nothing
• Adding assembly references to system.web\compilation\assemblies also did not help (although I have not removed these references, so it may be that they are needed too)

But I finally found something that worked for me:

It was because I had my Build Output going to bin\Debug\ for Debug configuration and bin\Release\ for Release configuations. As soon as I changed the Build Configuation to "bin\" for All configuations (as per image below) then everything started working as it should!!!

I have no idea why separating out your builds into Release and Debug folders should cause Razor syntax to break, but it seems to be because something couldn't find the assemblies. For me the projects that were having the razor syntax issues are actually my 'razor library' projects. They are set as Application Projects however I use them as class libraries with RazorGenerator to compile my views. When I actually tried to run one of these projects directly it caused the following Configuration error:

Could not load file or assembly 'System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

This lead me to trying to change the Build Output, as I notice that for all web projects the Build Output seems to always be directly to the bin folder, unlike the default for class libraries, which have both release and debug folders.

Check the node version using node -v. Check the npm version using npm -v. If these commands gave you version number you are good to go with NodeJs development

Time to test node

Create a Directory using mkdir NodeJs. Inside the NodeJs folder create a file using touch index.js. Open your index.js either using vi or in your favourite text editor. Type in console.log('Welcome to NodesJs.') and save it. Navigate back to your saved file and type node index.js. If you see Welcome to NodesJs. you did a nice job and you are up with NodeJs.

I have a problem with these javascript functions:

function ClickConnect(){
    console.log("Clicked on connect button"); 
    document.querySelector("colab-connect-button").click()
}
setInterval(ClickConnect,60000)

They print the "Clicked on connect button" on the console before the button is actually clicked. As you can see from different answers in this thread, the id of the connect button has changed a couple of times since Google Colab was launched. And it could be changed in the future as well. So if you're going to copy an old answer from this thread it may say "Clicked on connect button" but it may actually not do that. Of course if the clicking won't work it will print an error on the console but what if you may not accidentally see it? So you better do this:

function ClickConnect(){
    document.querySelector("colab-connect-button").click()
    console.log("Clicked on connect button"); 
}
setInterval(ClickConnect,60000)

And you'll definitely see if it truly works or not.

new File(absolutePath).getName();

This is another method in addition to my previous answer at Can I add jars to maven 2 build classpath without installing them?

This will get around the limit when using multi-module builds especially if the downloaded JAR is referenced in child projects outside of the parent. This also reduces the setup work by creating the POM and the SHA1 files as part of the build. It also allows the file to reside anywhere in the project without fixing the names or following the maven repository structure.

This uses the maven-install-plugin. For this to work, you need to set up a multi-module project and have a new project representing the build to install files into the local repository and ensure that one is first.

You multi-module project pom.xml would look like this:

<packaging>pom</packaging>
<modules>
<!-- The repository module must be first in order to ensure
     that the local repository is populated -->
    <module>repository</module>
    <module>... other modules ...</module>
</modules>

The repository/pom.xml file will then contain the definitions to load up the JARs that are part of your project. The following are some snippets of the pom.xml file.

<artifactId>repository</artifactId>
<packaging>pom</packaging>

The pom packaging prevents this from doing any tests or compile or generating any jar file. The meat of the pom.xml is in the build section where the maven-install-plugin is used.

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-install-plugin</artifactId>
            <executions>
                <execution>
                        <id>com.ibm.db2:db2jcc</id>
                        <phase>verify</phase>
                        <goals>
                            <goal>install-file</goal>
                        </goals>
                        <configuration>
                            <groupId>com.ibm.db2</groupId>
                            <artifactId>db2jcc</artifactId>
                            <version>9.0.0</version>
                            <packaging>jar</packaging>
                            <file>${basedir}/src/jars/db2jcc.jar</file>
                            <createChecksum>true</createChecksum>
                            <generatePom>true</generatePom>
                        </configuration>
                </execution>
                <execution>...</execution>
            </executions>
        </plugin>
    </plugins>
</build>

To install more than one file, just add more executions.

If you see this intermittently on wifi or LAN, but your mobile internet connection seems ok, it is most likely your ISP's cheap gateway router is experiencing high traffic load.

You should trap these errors and display a reminder to the user to close any other apps using the network.

Test by running a couple of HD youtube videos on your desktop to reproduce, or just go to a busy Starbucks.

Here is what I would do.
Also I would use a template function to make the construction of select2nd easier.

#include <map>
#include <vector>
#include <algorithm>
#include <memory>
#include <string>

/*
 * A class to extract the second part of a pair
 */   
template<typename T>
struct select2nd
{
    typename T::second_type operator()(T const& value) const
    {return value.second;}
};

/*
 * A utility template function to make the use of select2nd easy.
 * Pass a map and it automatically creates a select2nd that utilizes the
 * value type. This works nicely as the template functions can deduce the
 * template parameters based on the function parameters. 
 */
template<typename T>
select2nd<typename T::value_type> make_select2nd(T const& m)
{
    return select2nd<typename T::value_type>();
}

int main()
{
    std::map<int,std::string>   m;
    std::vector<std::string>    v;

    /*
     * Please note: You must use std::back_inserter()
     *              As transform assumes the second range is as large as the first.
     *              Alternatively you could pre-populate the vector.
     *
     * Use make_select2nd() to make the function look nice.
     * Alternatively you could use:
     *    select2nd<std::map<int,std::string>::value_type>()
     */   
    std::transform(m.begin(),m.end(),
                   std::back_inserter(v),
                   make_select2nd(m)
                  );
}

dangerouslySetInnerHTML has many disadvantage because it set inside the tag.

I suggest you to use some react wrapper like i found one here on npm for this purpose. html-react-parser does the same job.

import Parser from 'html-react-parser';
var thisIsMyCopy = '<p>copy copy copy <strong>strong copy</strong></p>';


render: function() {
    return (
        <div className="content">{Parser(thisIsMyCopy)}</div>
    );
}

Very Simple :)

Using http://crsmithdev.com/arrow/

arrowObj = arrow.Arrow.strptime('2017-02-20 10:00:00', '%Y-%m-%d %H:%M:%S' , 'US/Eastern')

arrowObj.to('UTC') or arrowObj.to('local') 

This library makes life easy :)

I just found one difference that ended up being important for me. The non-Underscore.js-compatible version of Lodash's _.extend() does not copy over class-level-defined properties or methods.

I've created a Jasmine test in CoffeeScript that demonstrates this:

https://gist.github.com/softcraft-development/1c3964402b099893bd61

Fortunately, lodash.underscore.js preserves Underscore.js's behaviour of copying everything, which for my situation was the desired behaviour.

Jupyter Notebook is a web-based interactive computational environment for creating Jupyter notebook documents. It supports several languages like Python (IPython), Julia, R etc. and is largely used for data analysis, data visualization and further interactive, exploratory computing.

JupyterLab is the next-generation user interface including notebooks. It has a modular structure, where you can open several notebooks or files (e.g. HTML, Text, Markdowns etc) as tabs in the same window. It offers more of an IDE-like experience.

For a beginner I would suggest starting with Jupyter Notebook as it just consists of a filebrowser and an (notebook) editor view. It might be easier to use. If you want more features, switch to JupyterLab. JupyterLab offers much more features and an enhanced interface, which can be extended through extensions: JupyterLab Extensions (GitHub)

    fucntion getPath(obj, path, index = 0) {
        const nestedKeys = path.split('.')
        const selectedKey = nestedKeys[index]

        if (index === nestedKeys.length - 1) {
            return obj[selectedKey]
        }

        if (!obj.hasOwnProperty(selectedKey)) {
            return {}
        }

        const nextObj = obj[selectedKey]

        return Utils.hasPath(nextObj, path, index + 1)
    }

You're welcome By: Gorillaz

Use Range("A1").Text instead of .Value

post comment edit:
Why?
Because the .Text property of Range object returns what is literally visible in the spreadsheet, so if you cell displays for example i100l:25he*_92 then <- Text will return exactly what it in the cell including any formatting.
The .Value and .Value2 properties return what's stored in the cell under the hood excluding formatting. Specially .Value2 for date types, it will return the decimal representation.

If you want to dig deeper into the meaning and performance, I just found this article which seems like a good guide

another edit
Here you go @Santosh
type in (MANUALLY) the values from the DEFAULT (col A) to other columns
Do not format column A at all
Format column B as Text
Format column C as Date[dd/mm/yyyy]
Format column D as Percentage

now,
paste this code in a module

Sub main()

    Dim ws As Worksheet, i&, j&
    Set ws = Sheets(1)
    For i = 3 To 7
        For j = 1 To 4
            Debug.Print _
                    "row " & i & vbTab & vbTab & _
                    Cells(i, j).Text & vbTab & _
                    Cells(i, j).Value & vbTab & _
                    Cells(i, j).Value2
        Next j
    Next i
End Sub

and Analyse the output! Its really easy and there isn't much more i can do to help :)

            .TEXT              .VALUE             .VALUE2
row 3       hello             hello               hello
row 3       hello             hello               hello
row 3       hello             hello               hello
row 3       hello             hello               hello
row 4       1                 1                   1
row 4       1                 1                   1
row 4       01/01/1900        31/12/1899          1
row 4       1.00%             0.01                0.01
row 5       helo1$$           helo1$$             helo1$$
row 5       helo1$$           helo1$$             helo1$$
row 5       helo1$$           helo1$$             helo1$$
row 5       helo1$$           helo1$$             helo1$$
row 6       63                63                  63
row 6       =7*9              =7*9                =7*9
row 6       03/03/1900        03/03/1900          63
row 6       6300.00%          63                  63
row 7       29/05/2013        29/05/2013          41423
row 7       29/05/2013        29/05/2013          29/05/2013
row 7       29/05/2013        29/05/2013          41423
row 7       29/05/2013%       29/05/2013%         29/05/2013%

Copy Database to an other folder and attach or Log in SQLServer with "Windows Authentication"

An established connection was aborted by the software in your host machine

That is a boiler-plate error message, it comes out of Windows. The underlying error code is WSAECONNABORTED. Which really doesn't mean more than "connection was aborted". You have to be a bit careful about the "your host machine" part of the phrase. In the vast majority of Windows application programs, it is indeed the host that the desktop app is connected to that aborted the connection. Usually a server somewhere else.

The roles are reversed however when you implement your own server. Now you need to read the error message as "aborted by the application at the other end of the wire". Which is of course not uncommon when you implement a server, client programs that use your server are not unlikely to abort a connection for whatever reason. It can mean that a fire-wall or a proxy terminated the connection but that's not very likely since they typically would not allow the connection to be established in the first place.

You don't really know why a connection was aborted unless you have insight what is going on at the other end of the wire. That's of course hard to come by. If your server is reachable through the Internet then don't discount the possibility that you are being probed by a port scanner. Or your customers, looking for a game cheat.

There's a really good paper by Microsoft Research called To Blob or Not To Blob.

Their conclusion after a large number of performance tests and analysis is this:

• if your pictures or document are typically below 256KB in size, storing them in a database VARBINARY column is more efficient

• if your pictures or document are typically over 1 MB in size, storing them in the filesystem is more efficient (and with SQL Server 2008's FILESTREAM attribute, they're still under transactional control and part of the database)

• in between those two, it's a bit of a toss-up depending on your use

If you decide to put your pictures into a SQL Server table, I would strongly recommend using a separate table for storing those pictures - do not store the employee photo in the employee table - keep them in a separate table. That way, the Employee table can stay lean and mean and very efficient, assuming you don't always need to select the employee photo, too, as part of your queries.

For filegroups, check out Files and Filegroup Architecture for an intro. Basically, you would either create your database with a separate filegroup for large data structures right from the beginning, or add an additional filegroup later. Let's call it "LARGE_DATA".

Now, whenever you have a new table to create which needs to store VARCHAR(MAX) or VARBINARY(MAX) columns, you can specify this file group for the large data:

 CREATE TABLE dbo.YourTable
     (....... define the fields here ......)
     ON Data                   -- the basic "Data" filegroup for the regular data
     TEXTIMAGE_ON LARGE_DATA   -- the filegroup for large chunks of data

Check out the MSDN intro on filegroups, and play around with it!

You're importing invalid R class, import yourpackage.R class for example com.example.R

what actully happends that u import android.R class not yourpackages.R

req.query will return a JS object after the query string is parsed.

/user?name=tom&age=55 - req.query would yield {name:"tom", age: "55"}

req.params will return parameters in the matched route. If your route is /user/:id and you make a request to /user/5 - req.params would yield {id: "5"}

req.param is a function that peels parameters out of the request. All of this can be found here.

UPDATE

If the verb is a POST and you are using bodyParser, then you should be able to get the form body in you function with req.body. That will be the parsed JS version of the POSTed form.

First, factor consists of indices and levels. This fact is very very important when you are struggling with factor.

For example,

> z <- factor(letters[c(3, 2, 3, 4)])

# human-friendly display, but internal structure is invisible
> z
[1] c b c d
Levels: b c d

# internal structure of factor
> unclass(z)
[1] 2 1 2 3
attr(,"levels")
[1] "b" "c" "d"

here, z has 4 elements.
The index is 2, 1, 2, 3 in that order.
The level is associated with each index: 1 -> b, 2 -> c, 3 -> d.

Then, as.numeric converts simply the index part of factor into numeric.
as.character handles the index and levels, and generates character vector expressed by its level.

?as.numeric says that Factors are handled by the default method.

Set the colspan attribute to 2.

...but please don't use tables for layout.

Swift 2 Version

As @Johan Karlsson pointed out... I was doing it wrong. Here's the proper way to send and receive information with NSNotificationCenter.

First, we look at the initializer for postNotificationName:

init(name name: String,
   object object: AnyObject?,
 userInfo userInfo: [NSObject : AnyObject]?)

source

We'll be passing our information using the userInfo param. The [NSObject : AnyObject] type is a hold-over from Objective-C. So, in Swift land, all we need to do is pass in a Swift dictionary that has keys that are derived from NSObject and values which can be AnyObject.

With that knowledge we create a dictionary which we'll pass into the object parameter:

 var userInfo = [String:String]()
 userInfo["UserName"] = "Dan"
 userInfo["Something"] = "Could be any object including a custom Type."

Then we pass the dictionary into our object parameter.

Sender

NSNotificationCenter.defaultCenter()
    .postNotificationName("myCustomId", object: nil, userInfo: userInfo)

Receiver Class

First we need to make sure our class is observing for the notification

override func viewDidLoad() {
    super.viewDidLoad()

    NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector("btnClicked:"), name: "myCustomId", object: nil)   
}
    

Then we can receive our dictionary:

func btnClicked(notification: NSNotification) {
   let userInfo : [String:String!] = notification.userInfo as! [String:String!]
   let name = userInfo["UserName"]
   print(name)
}

A .NET Core Class Library is built upon the .NET Standard. If you want to implement a library that is portable to the .NET Framework, .NET Core and Xamarin, choose a .NET Standard Library

.NET Core will ultimately implement .NET Standard 2 (as will Xamarin and .NET Framework)

.NET Core, Xamarin and .NET Framework can, therefore, be identified as flavours of .NET Standard

To future-proof your applications for code sharing and reuse, you would rather implement .NET Standard libraries.

Microsoft also recommends that you use .NET Standard instead of Portable Class Libraries.

To quote MSDN as an authoritative source, .NET Standard is intended to be One Library to Rule Them All. As pictures are worth a thousand words, the following will make things very clear:

1. Your current application scenario (fragmented)

Like most of us, you are probably in the situation below: (.NET Framework, Xamarin and now .NET Core flavoured applications)

2. What the .NET Standard Library will enable for you (cross-framework compatibility)

Implementing a .NET Standard Library allows code sharing across all these different flavours:

For the impatient:

1. .NET Standard solves the code sharing problem for .NET developers across all platforms by bringing all the APIs that you expect and love across the environments that you need: desktop applications, mobile apps & games, and cloud services:
2. .NET Standard is a set of APIs that all .NET platforms have to implement. This unifies the .NET platforms and prevents future fragmentation.
3. .NET Standard 2.0 will be implemented by .NET Framework, .NET Core, and Xamarin. For .NET Core, this will add many of the existing APIs that have been requested.
4. .NET Standard 2.0 includes a compatibility shim for .NET Framework binaries, significantly increasing the set of libraries that you can reference from your .NET Standard libraries.
5. .NET Standard will replace Portable Class Libraries (PCLs) as the tooling story for building multi-platform .NET libraries.

For a table to help understand what the highest version of .NET Standard that you can target, based on which .NET platforms you intend to run on, head over here.

Sources: MSDN: Introducing .NET Standard

You can always use the DATALENGTH Function to determine if you have extra white space characters in text fields. This won't make the text visible but will show you where there are extra white space characters.

    SELECT DATALENGTH('MyTextData ') AS BinaryLength, LEN('MyTextData ') AS TextLength

This will produce 11 for BinaryLength and 10 for TextLength.

In a table your SQL would like this:

    SELECT * 
    FROM tblA
    WHERE DATALENGTH(MyTextField) > LEN(MyTextField)

This function is usable in all versions of SQL Server beginning with 2005.

You can set the caret position using TextBox.CaretIndex. If the only thing you need is to set the cursor at the end, you can simply pass the string's length, eg:

txtBox.CaretIndex=txtBox.Text.Length;

You need to set the caret index at the length, not length-1, because this would put the caret before the last character.

I was trying to use CURL to do some https API calls with php and ran into this problem. I noticed a recommendation on the php site which got me up and running: http://php.net/manual/en/function.curl-setopt.php#110457

Please everyone, stop setting CURLOPT_SSL_VERIFYPEER to false or 0. If your PHP installation doesn't have an up-to-date CA root certificate bundle, download the one at the curl website and save it on your server:

http://curl.haxx.se/docs/caextract.html

Then set a path to it in your php.ini file, e.g. on Windows:

curl.cainfo=c:\php\cacert.pem

Turning off CURLOPT_SSL_VERIFYPEER allows man in the middle (MITM) attacks, which you don't want!

Exception class has two constructors

• public Exception() -- This constructs an Exception without any additional information.Nature of the exception is typically inferred from the class name.
• public Exception(String s) -- Constructs an exception with specified error message.A detail message is a String that describes the error condition for this particular exception.

One option you can use is object-fit: cover it behaves a bit like background-size: cover. More on object-fit.

ignore all the JS below, that's just for the demo.

The key here is that you need to set the image inside a wrapper and give it the following properties.

.wrapper img {
  height: 100%;
  width: 100%;
  object-fit: cover;
}

I've created a demo below where you change the height / width of the wrapper and see in play. The image will always be vertically and horizontally centered. It will take up 100% of its parent width and height, and will not be stretched / squashed. This means that the aspect ratio of the image is maintained. The changes are applied by zooming in / out instead.

The only downside to object-fit is that it doesn't work on IE11.

// for demo only_x000D_
const wrapper = document.querySelector('.wrapper');_x000D_
const button = document.querySelector('button');_x000D_
const widthInput = document.querySelector('.width-input');_x000D_
const heightInput = document.querySelector('.height-input');_x000D_
_x000D_
_x000D_
const resizeWrapper = () => {_x000D_
  wrapper.style.width = widthInput.value + "px";_x000D_
  wrapper.style.height = heightInput.value + "px";_x000D_
}_x000D_
_x000D_
button.addEventListener("click", resizeWrapper);

.wrapper {_x000D_
  overflow: hidden;_x000D_
  max-width: 100%;_x000D_
  margin-bottom: 2em;_x000D_
  border: 1px solid red;_x000D_
}_x000D_
_x000D_
.wrapper img {_x000D_
  display: block;_x000D_
  height: 100%;_x000D_
  width: 100%;_x000D_
  object-fit: cover;_x000D_
}

<div class="wrapper">_x000D_
  <img src="https://i.imgur.com/DrzMS8i.png">_x000D_
</div>_x000D_
_x000D_
_x000D_
<!-- demo only -->_x000D_
<lable for="width">_x000D_
  Width: <input name="width" class='width-input'>_x000D_
</lable>_x000D_
<lable for="height">_x000D_
  height: <input name="height" class='height-input'>_x000D_
</lable>_x000D_
<button>change size!</button>