This esc
behavior is IE only by the way. Instead of using jQuery use good old javascript for creating the element and it works.
var element = document.createElement('input');
element.type = 'text';
element.value = 100;
document.getElementsByTagName('body')[0].appendChild(element);
If you want to extend this functionality to other browsers then I would use jQuery's data object to store the default. Then set it when user presses escape.
//store default value for all elements on page. set new default on blur
$('input').each( function() {
$(this).data('default', $(this).val());
$(this).blur( function() { $(this).data('default', $(this).val()); });
});
$('input').keyup( function(e) {
if (e.keyCode == 27) { $(this).val($(this).data('default')); }
});
Equivalent to Dror's answer but as an extension method:
namespace System
{
public static class TypeExtensions
{
public static object Default(this Type type)
{
object output = null;
if (type.IsValueType)
{
output = Activator.CreateInstance(type);
}
return output;
}
}
}
If you want to do this programmatically (no manual text entry with gedit) here's a version for a Dockerfile based on user1341296's answer above:
FROM spittet/ruby-mysql
MAINTAINER [email protected]
RUN cp -R -p /var/lib/mysql /dev/shm && \
rm -rf /var/lib/mysql && \
sed -i -e 's,/var/lib/mysql,/dev/shm/mysql,g' /etc/mysql/my.cnf && \
/etc/init.d/mysql restart
Available on Docker hub here: https://hub.docker.com/r/richardjecooke/ruby-mysql-in-memory/
dev.off() is the best function, but it clears also all plots. If you want to keep plots in your window, at the beginning save default par settings:
def.par = par()
Then when you use your par functions you still have a backup of default par settings. Later on, after generating plots, finish with:
par(def.par) #go back to default par settings
With this, you keep generated plots and reset par settings.
I don't think you should use the data
option, because this does more than just setting a default value.
You're also overriding any data that's being passed to the form during creation. So basically, you're breaking
support for that feature. - Which might not matter when you're letting the user create data, but does matter when you
want to (someday) use the form for updating data.
See http://symfony.com/doc/current/reference/forms/types/choice.html#data
I believe it would be better to pass any default data during form creation. In the controller.
For example, you can pass in a class and define the default value in your class itself.
(when using the default Symfony\Bundle\FrameworkBundle\Controller\Controller
)
$form = $this->createForm(AnimalType::class, [
'species' => 174 // this id might be substituted by an entity
]);
Or when using objects:
$dog = new Dog();
$dog->setSpecies(174); // this id might be substituted by an entity
$form = $this->createForm(AnimalType::class, $dog);
Even better when using a factory: (where dog probably extends from animal)
$form = $this->createForm(AnimalType::class, DogFactory::create());
This will enable you to separate form structure and content from each other and make your form reusable in more situations.
Or, use the preferred_choices
option, but this has the side effect of moving the default option to the top of your form.
See: http://symfony.com/doc/current/reference/forms/types/choice.html#preferred-choices
$builder->add(
'species',
'entity',
[
'class' => 'BFPEduBundle:Item',
'property' => 'name',
'query_builder' => ...,
'preferred_choices' => [174] // this id might be substituted by an entity
]
);
CREATE PROC SP_EMPLOYEE --By Using TYPE parameter and CASE in Stored procedure
(@TYPE INT)
AS
BEGIN
IF @TYPE=1
BEGIN
SELECT DESIGID,DESIGNAME FROM GP_DESIGNATION
END
IF @TYPE=2
BEGIN
SELECT ID,NAME,DESIGNAME,
case D.ISACTIVE when 'Y' then 'ISACTIVE' when 'N' then 'INACTIVE' else 'not' end as ACTIVE
FROM GP_EMPLOYEEDETAILS ED
JOIN GP_DESIGNATION D ON ED.DESIGNATION=D.DESIGID
END
END
If I remember correctly, you'll need to set the netbeans_jdkhome
property in your netbeans config file. Should be in your etc/netbeans.conf
file.
default
is basically const someVariableName
You don't need a named identifier because it's the default export for the file and you can name it whatever you want when you import it, so default
is just condensing the variable assignment into a single keyword.
Switch cases should almost always have a default
case.
Reasons to use a default
1.To 'catch' an unexpected value
switch(type)
{
case 1:
//something
case 2:
//something else
default:
// unknown type! based on the language,
// there should probably be some error-handling
// here, maybe an exception
}
2. To handle 'default' actions, where the cases are for special behavior.
You see this a LOT in menu-driven programs and bash shell scripts. You might also see this when a variable is declared outside the switch-case but not initialized, and each case initializes it to something different. Here the default needs to initialize it too so that down the line code that accesses the variable doesn't raise an error.
3. To show someone reading your code that you've covered that case.
variable = (variable == "value") ? 1 : 2;
switch(variable)
{
case 1:
// something
case 2:
// something else
default:
// will NOT execute because of the line preceding the switch.
}
This was an over-simplified example, but the point is that someone reading the code shouldn't wonder why variable
cannot be something other than 1 or 2.
The only case I can think of to NOT use default
is when the switch is checking something where its rather obvious every other alternative can be happily ignored
switch(keystroke)
{
case 'w':
// move up
case 'a':
// move left
case 's':
// move down
case 'd':
// move right
// no default really required here
}
I think using xdg-open http://example.com
is probably the best choice.
In case they don't have it installed I suppose they might have just kde-open
or gnome-open
(both of which take a single file/url) or some other workaround such as looping over common browser executable names until you find one which can be executed(using which). If you want a full list of workarounds/fallbacks I suggest reading xdg-open(it's a shell script which calls out to kde-open/gnome-open/etc. or some other fallback).
But since xdg-open and xdg-mime(used for one of the fallbacks,) are shell scripts I'd recommend including them in your application and if calling which xdg-open
fails add them to temporary PATH variable in your subprograms environment and call out to them. If xdg-open fails, I'd recommend throwing an Exception with an error message from what it output on stderr and catching the exception and printing/displaying the error message.
I would ignore the java awt Desktop solution as the bug seems to indicate they don't plan on supporting non-gnome desktops anytime soon.
Turns out all I needed to do was wrap the left-hand side of the expression in soft brackets:
<span class="gallery-date">{{(gallery.date | date:'mediumDate') || "Various"}}</span>
Default-Values are only considered for parameters NOT given to the function.
So given a function
procedure foo( bar1 IN number DEFAULT 3,
bar2 IN number DEFAULT 5,
bar3 IN number DEFAULT 8 );
if you call this procedure with no arguments then it will behave as if called with
foo( bar1 => 3,
bar2 => 5,
bar3 => 8 );
but 'NULL' is still a parameter.
foo( 4,
bar3 => NULL );
This will then act like
foo( bar1 => 4,
bar2 => 5,
bar3 => Null );
( oracle allows you to either give the parameter in order they are specified in the procedure, specified by name, or first in order and then by name )
one way to treat NULL the same as a default value would be to default the value to NULL
procedure foo( bar1 IN number DEFAULT NULL,
bar2 IN number DEFAULT NULL,
bar3 IN number DEFAULT NULL );
and using a variable with the desired value then
procedure foo( bar1 IN number DEFAULT NULL,
bar2 IN number DEFAULT NULL,
bar3 IN number DEFAULT NULL )
AS
v_bar1 number := NVL( bar1, 3);
v_bar2 number := NVL( bar2, 5);
v_bar3 number := NVL( bar3, 8);
Yes, that's usually happens after 1440s (24 minutes)
You can also set DirectoryIndex in apache's httpd.conf file.
CentOS keeps this file in /etc/httpd/conf/httpd.conf
Debian: /etc/apache2/apache2.conf
Open the file in your text editor and find the line starting with DirectoryIndex
To load landing.html as a default (but index.html if that's not found) change this line to read:
DirectoryIndex landing.html index.html
You should just grab the window by the title bar and snap it to the left side of your screen (close browser) then reopen the browser ans snap it to the top... problem is over.
hey you can try this
ColorStateList colorStateList = textView.getTextColors();
String hexColor = String.format("#%06X", (0xFFFFFF & colorStateList.getDefaultColor()));
This opened the default for me:
System.Diagnostics.Process.Start(e.LinkText.ToString());
display
:You can use the value unset
which works in both Firefox and Chrome.
display: unset;
.foo { display: none; }
.foo.bar { display: unset; }
If you want to use default value for a DateTime parameter in a method, you can only use default(DateTime).
The following line will not compile:
private void MyMethod(DateTime syncedTime = DateTime.MinValue)
This line will compile:
private void MyMethod(DateTime syncedTime = default(DateTime))
If your user has a local folder e.g. Linux, in your users home folder you could create a .my.cnf file and provide the credentials to access the server there. for example:-
[client]
host=localhost
user=yourusername
password=yourpassword or exclude to force entry
database=mygotodb
Mysql would then open this file for each user account read the credentials and open the selected database.
Not sure on Windows, I upgraded from Windows because I needed the whole house not just the windows (aka Linux) a while back.
There are multiple false assumptions you're making here - First, function belong to a class and not to an instance, meaning the actual function involved is the same for any two instances of a class. Second, default parameters are evaluated at compile time and are constant (as in, a constant object reference - if the parameter is a mutable object you can change it). Thus you cannot access self
in a default parameter and will never be able to.
I've found that the parseArgs function can be very helpful.
Optional arguments only work at the end of a function call. There is no way to specify a value for $y in your function without also specifying $x. Some languages support this via named parameters (VB/C# for example), but not PHP.
You can emulate this if you use an associative array for parameters instead of arguments -- i.e.
function foo(array $args = array()) {
$x = !isset($args['x']) ? 'default x value' : $args['x'];
$y = !isset($args['y']) ? 'default y value' : $args['y'];
...
}
Then call the function like so:
foo(array('y' => 'my value'));
This gets parent if it is a div. Then it gets class.
var div = $(this).parent("div");
var _class = div.attr("class");
If the question is: "Is it possible to add value on ESC" than the answer is yes. You can do something like that. For example with use of jQuery it would look like below.
HTML
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<input type="text" value="default!" id="myInput" />
JavaScript
$(document).ready(function (){
$('#myInput').keyup(function(event) {
// 27 is key code of ESC
if (event.keyCode == 27) {
$('#myInput').val('default!');
// Loose focus on input field
$('#myInput').blur();
}
});
});
Working source can be found here: http://jsfiddle.net/S3N5H/1/
Please let me know if you meant something different, I can adjust the code later.
In case you have only one controller and you want to access every action on root you can skip controller name like this
routes.MapRoute(
"Default",
"{action}/{id}",
new { controller = "Home", action = "Index",
id = UrlParameter.Optional }
);
Create a Game model which extends Eloquent and use this:
Game::take(30)->skip(30)->get();
take()
here will get 30 records and skip()
here will offset to 30 records.
In recent Laravel versions you can also use:
Game::limit(30)->offset(30)->get();
I always use a regular expression for checking for an empty string, dating back to CGI/Perl days, and also with Javascript, so why not with PHP as well, e.g. (albeit untested)
return preg_match('/\S/', $input);
Where \S represents any non-whitespace character
I personally feel casting is the prettiest.
$iSomeVar = (int) $sSomeOtherVar;
Should a string like 'Hello' be sent, it will be cast to integer 0. For a string such as '22 years old', it will be cast to integer 22. Anything it can't parse to a number becomes 0.
If you really do NEED the speed, I guess the other suggestions here are correct in assuming that coercion is the fastest.
#pragma
is used to send non-portable (as in this compiler only) messages to the compiler. Things like disabling certain warnings and packing structs are common reasons. Disabling specific warnings is particularly useful if you compile with the warnings as errors flag turned on.
#pragma pack
specifically is used to indicate that the struct being packed should not have its members aligned. It's useful when you have a memory mapped interface to a piece of hardware and need to be able to control exactly where the different struct members point. It is notably not a good speed optimization, since most machines are much faster at dealing with aligned data.
Here is one without using JQuery with pure JavaScript. I used javascript promises and XMLHttpRequest You can try it here on this fiddle
HTML
<div id="result" style="color:red"></div>
JavaScript
var getJSON = function(url) {
return new Promise(function(resolve, reject) {
var xhr = new XMLHttpRequest();
xhr.open('get', url, true);
xhr.responseType = 'json';
xhr.onload = function() {
var status = xhr.status;
if (status == 200) {
resolve(xhr.response);
} else {
reject(status);
}
};
xhr.send();
});
};
getJSON('https://www.googleapis.com/freebase/v1/text/en/bob_dylan').then(function(data) {
alert('Your Json result is: ' + data.result); //you can comment this, i used it to debug
result.innerText = data.result; //display the result in an HTML element
}, function(status) { //error detection....
alert('Something went wrong.');
});
Check out this https://github.com/stephen-lazarionok/async-resource-loader. It has an example that shows how to load JS, CSS and multiple files with one shot.
wordlists is not a function, it is a list. You need the bracket subscript
print wordlists[len(words)]
You need to set the allow_reuse_address before binding. Instead of the SimpleHTTPServer run this snippet:
Handler = SimpleHTTPServer.SimpleHTTPRequestHandler
httpd = SocketServer.TCPServer(("", PORT), Handler, bind_and_activate=False)
httpd.allow_reuse_address = True
httpd.server_bind()
httpd.server_activate()
httpd.serve_forever()
This prevents the server from binding before we got a chance to set the flags.
Pure POSIX shell:
#!/bin/sh
CURRENT_DIR=`pwd`
case "$CURRENT_DIR" in
*String1*) echo "String1 present" ;;
*String2*) echo "String2 present" ;;
*) echo "else" ;;
esac
Extended shells like ksh or bash have fancy matching mechanisms, but the old-style case
is surprisingly powerful.
Here with the refresh for checkboxes and selects:
$('#frm').find('input:text, input:password, input:file, textarea').val('');
$('#frm').find('input:radio, input:checkbox').attr("checked",false).checkboxradio("refresh");
$('#frm').find('select').val('').selectmenu('refresh');
Use IS
instead of =
This will solve your problem
example syntax:
UPDATE studentdetails
SET contactnumber = 9098979690
WHERE contactnumber IS NULL;
Try this:
in.nextLine();
This advances the Scanner to the next line.
with for-loop:
std::ifstream myFile;
std::string line;
int lines;
myFile.open(path);
for(lines = 0; std::getline(myFile,line); lines++);
std::cout << lines << std::endl;
The quickest way is to remake the virtualenv completely. I'm assuming you have a requirements.txt file that matches production, if not:
# On production:
pip freeze > reqs.txt
# On your machine:
rm $VIRTUALENV_DIRECTORY
mkdir $VIRTUALENV_DIRECTORY
pip install -r reqs.txt
you could connect all the data you need from the file to a single string, and in the excel sheet seperate it with text to column. here is an example i did for same issue, enjoy:
Sub CP()
Dim ToolFile As String
Cells(3, 2).Select
For i = 0 To 5
r = ActiveCell.Row
ToolFile = Cells(r, 7).Value
On Error Resume Next
ActiveCell.Value = CP_getdatta(ToolFile)
'seperate data by "-"
Selection.TextToColumns Destination:=Range("C3"), DataType:=xlDelimited, _
TextQualifier:=xlDoubleQuote, ConsecutiveDelimiter:=False, Tab:=True, _
Semicolon:=False, Comma:=False, Space:=False, Other:=True, OtherChar _
:="-", FieldInfo:=Array(Array(1, 1), Array(2, 1)), TrailingMinusNumbers:=True
Cells(r + 1, 2).Select
Next
End Sub
Function CP_getdatta(ToolFile As String) As String
Workbooks.Open Filename:=ToolFile, UpdateLinks:=False, ReadOnly:=True
Range("A56000").Select
Selection.End(xlUp).Select
x = CStr(ActiveCell.Value)
ActiveCell.Offset(0, 20).Select
Selection.End(xlToLeft).Select
While IsNumeric(ActiveCell.Value) = False
ActiveCell.Offset(0, -1).Select
Wend
' combine data to 1 string
CP_getdatta = CStr(x & "-" & ActiveCell.Value)
ActiveWindow.Close False
End Function
You can use Intent
Intent mIntent = new Intent(FirstActivity.this, SecondActivity.class);
mIntent.putExtra("data", data);
startActivity(mIntent);
Another way could be using singleton pattern also:
public class DataHolder {
private static DataHolder dataHolder;
private List<Model> dataList;
public void setDataList(List<Model>dataList) {
this.dataList = dataList;
}
public List<Model> getDataList() {
return dataList;
}
public synchronized static DataHolder getInstance() {
if (dataHolder == null) {
dataHolder = new DataHolder();
}
return dataHolder;
}
}
From your FirstActivity
private List<Model> dataList = new ArrayList<>();
DataHolder.getInstance().setDataList(dataList);
On SecondActivity
private List<Model> dataList = DataHolder.getInstance().getDataList();
This way works for me.
# java -version 2>&1|awk '/version/ {gsub("\"","") ; print $NF}'
1.8.0_171
Building on Kilhoffer's solution...
With C# 3.0 you can create an extension method as follows:
public static class ExtensionMethods
{
// Deep clone
public static T DeepClone<T>(this T a)
{
using (MemoryStream stream = new MemoryStream())
{
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(stream, a);
stream.Position = 0;
return (T) formatter.Deserialize(stream);
}
}
}
which extends any class that's been marked as [Serializable] with a DeepClone method
MyClass copy = obj.DeepClone();
There are different ways to achieve it. The latest approach is using CardView for each ListItem component. Here are some steps.
**listitem.xml**
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<GridLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:alignmentMode="alignMargins"
android:columnCount="1"
android:columnOrderPreserved="false"
android:rowCount="1">
<androidx.cardview.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_rowWeight="1"
android:layout_columnWeight="1"
android:layout_margin="6dp"
app:cardCornerRadius="8dp"
app:cardElevation="6dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<ImageView
android:id="@+id/sampleiconimageID"
android:layout_width="60dp"
android:layout_height="60dp"
android:padding="5dp"/>
<LinearLayout android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical">
<TextView
android:id="@+id/titleoflistview"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Main Heading"
android:textStyle="bold" />
<TextView
android:id="@+id/samplesubtitle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Sub Heading"
/>
</LinearLayout>
</LinearLayout>
</androidx.cardview.widget.CardView>
</GridLayout>
</LinearLayout>
RowItem.Class
public class RowItem {
private String heading;
private String subHeading;
private int smallImageName;
private String datetime;
private int count;
public void setHeading( String theHeading ) {
this.heading = theHeading;
}
public String getHeading() {
return this.heading;
}
public void setSubHeading( String theSubHeading ) {
this.subHeading = theSubHeading;
}
public String getSubHeading( ) {
return this.subHeading;
}
public void setSmallImageName(int smallName) {
this.smallImageName = smallName;
}
public int getSmallImageName() {
return this.smallImageName;
}
public void setDate(String datetime) {
this.datetime = datetime;
}
public String getDate() {
return this.datetime;
}
public void setCount(int count) {
this.count = count;
}
public int getCount() {
return this.count;
}
}
Sample ListAdapter
public class ListAdapter extends BaseAdapter {
private ArrayList<RowItem> singleRow;
private LayoutInflater thisInflater;
public ListAdapter(Context context, ArrayList<RowItem> aRow){
this.singleRow = aRow;
thisInflater = ( LayoutInflater.from(context) );
}
@Override
public int getCount() {
return singleRow.size(); }
@Override
public Object getItem(int position) {
return singleRow.get( position ); }
@Override
public long getItemId(int position) {
return position;
}
public View getView(int position, View view, ViewGroup parent) {
if (view == null) {
view = thisInflater.inflate( R.layout.mylist2, parent, false );
//set listview objects here
//example
TextView titleText = (TextView) view.findViewById(R.id.titleoflistview);
RowItem currentRow = (RowItem) getItem(position);
titleText.setText( currentRow.getHeading() );
}
return view;
// LayoutInflater inflater=.getLayoutInflater();
// View rowView=inflater.inflate(R.layout.mylist, null,true);
//
// titleText.setText(maintitle[position]);
// subtitleText.setText(subtitle[position]);
// return null;
};
}
I have read this but I just want to ask something, wouldn't something like I have written work at all? I have done the testing for 5,10 and 20 seconds. Its time isn't exactly accurate but they are really close to the actual values.
import time
begin_time=0
while begin_time<5:
begin_time+=1
time.sleep(1.0)
print("The Work is Done")
None of the many answers fixed the 0xE8008016 Error for me.
But when I chose "Automatic Device Provisioning" in Xcode 4 > Organizer > Devices > Provisioning Profiles, it finally worked.
You can't. You can only have one slide size and one orientation per presentation.
Are you projecting the presentation or delivering it on a laptop?
If so, the size is sort of irrelevant.
Regardless of the slide size, the projected/displayed image will never be longer or wider than the projector/display accepts.
I achieved it by placing the image tag before the li's:
HTML
<img src="https://www.pinclipart.com/picdir/big/1-17498_plain-right-white-arrow-clip-art-at-clipart.png" class="listImage">
CSS
.listImage{
float:left;
margin:2px;
width:25px
}
.li{
margin-left:29px;
}
The class Date/Timestamp
represents a specific instant in time, with millisecond precision, since January 1, 1970, 00:00:00 GMT. So this time difference (from epoch to current time) will be same in all computers across the world with irrespective of Timezone.
Date/Timestamp
doesn't know about the given time is on which timezone.
If we want the time based on timezone we should go for the Calendar or SimpleDateFormat classes in java.
If you try to print a Date/Timestamp object using toString()
, it will convert and print the time with the default timezone of your machine.
So we can say (Date/Timestamp).getTime() object will always have UTC (time in milliseconds)
To conclude Date.getTime()
will give UTC time, but toString()
is on locale specific timezone, not UTC.
The below code gives you a date (time in milliseconds) with specified timezones. The only problem here is you have to give date in string format.
DateFormat dateFormat = new SimpleDateFormat("yyyyMMdd HH:mm:ss");
dateFormatLocal.setTimeZone(timeZone);
java.util.Date parsedDate = dateFormatLocal.parse(date);
Use dateFormat.format
for taking input Date (which is always UTC), timezone and return date as String.
If you print the parsedDate
object, the time will be in default timezone.
But you can store the UTC time in DB like below.
Calendar calGMT = Calendar.getInstance(TimeZone.getTimeZone("GMT"));
Timestamp tsSchedStartTime = new Timestamp (parsedDate.getTime());
if (tsSchedStartTime != null) {
stmt.setTimestamp(11, tsSchedStartTime, calGMT );
} else {
stmt.setNull(11, java.sql.Types.DATE);
}
alphabet = map(chr, range(97,123)+range(65,91)) + map(str,range(0,10))
def lookup(k, a=alphabet):
if type(k) == int:
return a[k]
elif type(k) == str:
return a.index(k)
def encode(i, a=alphabet):
'''Takes an integer and returns it in the given base with mappings for upper/lower case letters and numbers 0-9.'''
try:
i = int(i)
except Exception:
raise TypeError("Input must be an integer.")
def incode(i=i, p=1, a=a):
# Here to protect p.
if i <= 61:
return lookup(i)
else:
pval = pow(62,p)
nval = i/pval
remainder = i % pval
if nval <= 61:
return lookup(nval) + incode(i % pval)
else:
return incode(i, p+1)
return incode()
def decode(s, a=alphabet):
'''Takes a base 62 string in our alphabet and returns it in base10.'''
try:
s = str(s)
except Exception:
raise TypeError("Input must be a string.")
return sum([lookup(i) * pow(62,p) for p,i in enumerate(list(reversed(s)))])a
Here's my version for whomever needs it.
Use a 1 line batch file in your install:
SETX PATH "C:\Windows"
run the bat file
Now place your .exe in c:\windows, and you're done.
you may type the 'exename' in command-line and it'll run it.
It's a design pattern and it's not specific to c#. More about it all over the internet and SO, like on this wikipedia article.
In software engineering, the singleton pattern is a design pattern that is used to restrict instantiation of a class to one object. This is useful when exactly one object is needed to coordinate actions across the system. The concept is sometimes generalized to systems that operate more efficiently when only one object exists, or that restrict the instantiation to a certain number of objects (say, five). Some consider it an anti-pattern, judging that it is overused, introduces unnecessary limitations in situations where a sole instance of a class is not actually required, and introduces global state into an application.
You should use it if you want a class that can only be instanciated once.
This assumes you have other languages already added in Language Support. (To check this, Menu > Language Support)
Now to make the keyboard language appear in the Panel:
The icon 'en' or your language should now appear in the right panel tray. Click it to switch language.
In previous Mint versions, the shortcut for switching language was LEFT SHIFT + CAPS.
It seems now there is no default, and it must be added:
Keyboard Preferences is also accessible by right-clicking the language icon in the Panel.
That's exactly how you use it. There is a possibility that the address you have does not correspond to something directly in your source code though.
For example:
$ cat t.c
#include <stdio.h>
int main()
{
printf("hello\n");
return 0;
}
$ gcc -g t.c
$ addr2line -e a.out 0x400534
/tmp/t.c:3
$ addr2line -e a.out 0x400550
??:0
0x400534
is the address of main
in my case. 0x400408
is also a valid function address in a.out
, but it's a piece of code generated/imported by GCC, that has no debug info. (In this case, __libc_csu_init
. You can see the layout of your executable with readelf -a your_exe
.)
Other times when addr2line
will fail is if you're including a library that has no debug information.
If you give the address of online image in your django project it will work. that is working for me. You should take a shot.
Extending @Ryogi answer above, you can take advantage of the lower.tail
parameter like so:
qt(0.25/2, 40, lower.tail = FALSE)
# 75% confidence
qt(0.01/2, 40, lower.tail = FALSE)
# 99% confidence
You can't really do it the C way (I think) but a pythonic way of doing this would be (if your 'inputs' have spaces in between them):
raw_answer = raw_input()
answers = raw_answer.split(' ') # list of 'answers'
So you could rewrite your try to:
var1, var2 = raw_input("enter two numbers:").split(' ')
Note that this it somewhat less flexible than using the 'first' solution (for example if you add a space at the end this will already break).
Also be aware that var1 and var2 will still be strings with this method when not cast to int.
Manual of find:
Numeric arguments can be specified as
+n for greater than n,
-n for less than n,
n for exactly n.
-amin n
File was last accessed n minutes ago.
-anewer file
File was last accessed more recently than file was modified. If file is a symbolic link and the -H option or the -L option is in effect, the access time of the file it points to is always
used.
-atime n
File was last accessed n*24 hours ago. When find figures out how many 24-hour periods ago the file was last accessed, any fractional part is ignored, so to match -atime +1, a file has to
have been accessed at least two days ago.
-cmin n
File's status was last changed n minutes ago.
-cnewer file
File's status was last changed more recently than file was modified. If file is a symbolic link and the -H option or the -L option is in effect, the status-change time of the file it points
to is always used.
-ctime n
File's status was last changed n*24 hours ago. See the comments for -atime to understand how rounding affects the interpretation of file status change times.
Example:
find /dir -cmin -60 # creation time
find /dir -mmin -60 # modification time
find /dir -amin -60 # access time
The difference is that Visibility.Hidden
hides the control, but reserves the space it occupies in the layout. So it renders whitespace instead of the control.
Visibilty.Collapsed
does not render the control and does not reserve the whitespace. The space the control would take is 'collapsed', hence the name.
The exact text from the MSDN:
Collapsed: Do not display the element, and do not reserve space for it in layout.
Hidden: Do not display the element, but reserve space for the element in layout.
Visible: Display the element.
See: http://msdn.microsoft.com/en-us/library/system.windows.visibility.aspx
Check the LOB segment name from dba_lobs using the table name.
select TABLE_NAME,OWNER,COLUMN_NAME,SEGMENT_NAME from dba_lobs where TABLE_NAME='<<TABLE NAME>>';
Now use the segment name to find the bytes used in dba_segments.
select s.segment_name, s.partition_name, bytes/1048576 "Size (MB)"
from dba_segments s, dba_lobs l
where s.segment_name = l.segment_name
and s.owner = '<< OWNER >> ' order by s.segment_name, s.partition_name;
erlswf is an opensource project written in erlang for decompiling .swf files.
Here's the site: https://github.com/bef/erlswf
See the documentation on setting up a pipeline using subprocess: http://docs.python.org/2/library/subprocess.html#replacing-shell-pipeline
I haven't tested the following code example but it should be roughly what you want:
query = "process_name"
ps_process = Popen(["ps", "-A"], stdout=PIPE)
grep_process = Popen(["grep", query], stdin=ps_process.stdout, stdout=PIPE)
ps_process.stdout.close() # Allow ps_process to receive a SIGPIPE if grep_process exits.
output = grep_process.communicate()[0]
This is what worked best for me:
string parentOfStartupPath = Path.GetFullPath(Path.Combine(Application.StartupPath, @"../"));
Getting the 'right' path wasn't the problem, adding '../' obviously does that, but after that, the given string isn't usable, because it will just add the '../' at the end.
Surrounding it with Path.GetFullPath()
will give you the absolute path, making it usable.
''' <summary>
''' Return specified Double # (NumDbl) as String using specified Number Format String (FormatStr,
''' Default = "N0") and Format Provider (FmtProvider, Default = Nothing) followed by space and,
''' if NumDbl = 1, the specified Singular Unit Name (SglUnitStr), else the Plural Unit Name
''' (PluralUnitStr).
''' </summary>
''' <param name="NumDbl"></param>
''' <param name="SglUnitStr"></param>
''' <param name="PluralUnitStr"></param>
''' <param name="FormatStr"></param>
''' <param name="FmtProvider"></param>
''' <returns></returns>
''' <remarks></remarks>
Public Function PluralizeUnitsStr( _
ByVal NumDbl As Double, _
ByVal SglUnitStr As String, _
ByVal PluralUnitStr As String, _
Optional ByVal FormatStr As String = "N0", _
Optional ByVal FmtProvider As System.IFormatProvider = Nothing _
) As String
PluralizeUnitsStr = NumDbl.ToString(FormatStr, FmtProvider) & " "
Dim RsltUnitStr As String
If NumDbl = 1 Then
RsltUnitStr = SglUnitStr
Else
RsltUnitStr = PluralUnitStr
End If
PluralizeUnitsStr &= RsltUnitStr
End Function
''' <summary>
''' Info about a # Unit.
''' </summary>
''' <remarks></remarks>
Public Class clsNumUnitInfoItem
''' <summary>
''' Name of a Singular Unit (i.e. "day", "trillion", "foot")
''' </summary>
''' <remarks></remarks>
Public UnitSglStr As String
''' <summary>
''' Name of a Plural Unit (i.e. "days", "trillion", "feet")
''' </summary>
''' <remarks></remarks>
Public UnitPluralStr As String
''' <summary>
''' # of Units to = 1 of Next Higher (aka Parent) Unit (i.e. 24 "hours", 1000 "million",
''' 5280 "feet")
''' </summary>
''' <remarks></remarks>
Public UnitsInParentInt As Integer
End Class ' -- clsNumUnitInfoItem
Dim TimeLongEnUnitInfoItms As clsNumUnitInfoItem() = { _
New clsNumUnitInfoItem With {.UnitSglStr = "day", .UnitPluralStr = "days", .UnitsInParentInt = 1}, _
New clsNumUnitInfoItem With {.UnitSglStr = "hour", .UnitPluralStr = "hours", .UnitsInParentInt = 24}, _
New clsNumUnitInfoItem With {.UnitSglStr = "minute", .UnitPluralStr = "minutes", .UnitsInParentInt = 60}, _
New clsNumUnitInfoItem With {.UnitSglStr = "second", .UnitPluralStr = "seconds", .UnitsInParentInt = 60}, _
New clsNumUnitInfoItem With {.UnitSglStr = "millisecond", .UnitPluralStr = "milliseconds", .UnitsInParentInt = 1000} _
} ' -- Dim TimeLongEnUnitInfoItms
Dim TimeShortEnUnitInfoItms As clsNumUnitInfoItem() = { _
New clsNumUnitInfoItem With {.UnitSglStr = "day", .UnitPluralStr = "days", .UnitsInParentInt = 1}, _
New clsNumUnitInfoItem With {.UnitSglStr = "hr", .UnitPluralStr = "hrs", .UnitsInParentInt = 24}, _
New clsNumUnitInfoItem With {.UnitSglStr = "min", .UnitPluralStr = "mins", .UnitsInParentInt = 60}, _
New clsNumUnitInfoItem With {.UnitSglStr = "sec", .UnitPluralStr = "secs", .UnitsInParentInt = 60}, _
New clsNumUnitInfoItem With {.UnitSglStr = "msec", .UnitPluralStr = "msecs", .UnitsInParentInt = 1000} _
} ' -- Dim TimeShortEnUnitInfoItms
''' <summary>
''' Convert a specified Double Number (NumDbl) to a long (aka verbose) format (i.e. "1 day,
''' 2 hours, 3 minutes, 4 seconds and 567 milliseconds") with a specified Array of Time Unit
''' Info Items (TimeUnitInfoItms), Conjunction (ConjStr, Default = "and"), Minimum Unit Level
''' Shown (MinUnitLevInt) (0 to TimeUnitInfoItms.Length - 1, -1=All), Maximum Unit Level Shown
''' (MaxUnitLevInt) (-1=All), Maximum # of Unit Levels Shown (MaxNumUnitLevsInt) (1 to 0 to
''' TimeUnitInfoItms.Length - 1, 0=All) and Round Last Shown Units Up Flag (RoundUpBool).
''' Suppress leading 0 Unit Levels.
''' </summary>
''' <param name="NumDbl"></param>
''' <param name="NumUnitInfoItms"></param>
''' <param name="ConjStr"></param>
''' <param name="MinUnitLevInt"></param>
''' <param name="MaxUnitLevInt"></param>
''' <param name="MaxNumUnitLevsInt"></param>
''' <param name="RoundUpBool"></param>
''' <param name="FormatStr"></param>
''' <param name="FmtProvider"></param>
''' <returns></returns>
''' <remarks></remarks>
Public Function NumToLongStr( _
ByVal NumDbl As Double, _
ByVal NumUnitInfoItms As clsNumUnitInfoItem(), _
Optional ByVal ConjStr As String = "and", _
Optional ByVal MinUnitLevInt As Integer = -1, _
Optional ByVal MaxUnitLevInt As Integer = -1, _
Optional ByVal MaxNumUnitLevsInt As Integer = 0, _
Optional ByVal RoundUpBool As Boolean = False, _
Optional ByVal FormatStr As String = "N0", _
Optional ByVal FmtProvider As System.IFormatProvider = Nothing _
) As String
NumToLongStr = ""
Const TUnitDelimStr As String = ", "
If (MinUnitLevInt < -1) OrElse (MinUnitLevInt >= NumUnitInfoItms.Length) Then
Throw New Exception("Invalid MinUnitLevInt: " & MaxUnitLevInt)
End If
If (MaxUnitLevInt < -1) OrElse (MaxUnitLevInt >= NumUnitInfoItms.Length) Then
Throw New Exception("Invalid MaxDetailLevelInt: " & MaxUnitLevInt)
End If
If (MaxNumUnitLevsInt < 0) OrElse (MaxNumUnitLevsInt > NumUnitInfoItms.Length) Then
Throw New Exception("Invalid MaxNumUnitLevsInt: " & MaxNumUnitLevsInt)
End If
Dim PrevNumUnitsDbl As Double = NumDbl
Dim CurrUnitLevInt As Integer = -1
Dim NumUnitLevsShownInt As Integer = 0
For Each UnitInfoItem In NumUnitInfoItms
CurrUnitLevInt += 1
With UnitInfoItem
Dim CurrNumUnitsDbl As Double = PrevNumUnitsDbl * .UnitsInParentInt
Dim CurrTruncNumUnitsInt As Integer = Math.Truncate(CurrNumUnitsDbl)
PrevNumUnitsDbl = CurrNumUnitsDbl
If CurrUnitLevInt < MinUnitLevInt Then Continue For
PrevNumUnitsDbl -= CurrTruncNumUnitsInt
'If (CurrUnitLevInt > TimeUnitInfoItms.Length) _
' OrElse _
' ( _
' (CurrUnitLevInt > MaxUnitLevInt) AndAlso _
' (MaxUnitLevInt <> -1) _
' ) _
' OrElse _
' ( _
' (NumUnitLevsShownInt + 1 > MaxNumUnitLevsInt) AndAlso _
' (MaxNumUnitLevsInt <> 0) _
' ) Then Exit For
If (CurrUnitLevInt = (NumUnitInfoItms.Length - 1)) OrElse _
(CurrUnitLevInt = MaxUnitLevInt) OrElse _
((NumUnitLevsShownInt + 1) = MaxNumUnitLevsInt) Then
If NumUnitLevsShownInt > 0 Then
Dim TUnitDelimStrLenInt As Integer = TUnitDelimStr.Length
NumToLongStr = NumToLongStr.Remove( _
NumToLongStr.Length - TUnitDelimStrLenInt, _
TUnitDelimStrLenInt)
NumToLongStr &= " " & ConjStr & " "
End If
Dim CurrNunUnitsRoundedInt As Integer
If RoundUpBool Then
If CurrNumUnitsDbl <> CurrTruncNumUnitsInt Then
CurrNunUnitsRoundedInt = CurrTruncNumUnitsInt + 1
Else
CurrNunUnitsRoundedInt = CurrTruncNumUnitsInt
End If
Else
CurrNunUnitsRoundedInt = Math.Round( _
value:=CurrNumUnitsDbl, mode:=MidpointRounding.AwayFromZero)
End If
NumToLongStr &= _
PluralizeUnitsStr(CurrNunUnitsRoundedInt, _
.UnitSglStr, .UnitPluralStr, FormatStr, FmtProvider)
Exit For
Else ' -- Not (MaxUnitLevInt or MaxNumUnitLevsInt)
If NumUnitLevsShownInt > 0 OrElse CurrTruncNumUnitsInt <> 0 Then
NumToLongStr &= _
PluralizeUnitsStr(CurrTruncNumUnitsInt, _
.UnitSglStr, .UnitPluralStr, FormatStr, FmtProvider) & _
TUnitDelimStr
NumUnitLevsShownInt += 1
End If
End If ' -- Else Not (MaxUnitLevInt or MaxNumUnitLevsInt)
End With ' -- UnitInfoItem
Next UnitInfoItem
End Function
''' <summary>
''' Call NumToLongStr with a specified TimeSpan's (TS) TotalDays.
''' </summary>
''' <param name="TS"></param>
''' <param name="TimeUnitInfoItms"></param>
''' <param name="ConjStr"></param>
''' <param name="MinUnitLevInt"></param>
''' <param name="MaxUnitLevInt"></param>
''' <param name="MaxNumUnitLevsInt"></param>
''' <param name="RoundUpBool"></param>
''' <param name="FormatStr"></param>
''' <param name="FmtProvider"></param>
''' <returns></returns>
''' <remarks></remarks>
Public Function TimeSpanToStr( _
ByVal TS As TimeSpan, _
ByVal TimeUnitInfoItms As clsNumUnitInfoItem(), _
Optional ByVal ConjStr As String = "and", _
Optional ByVal MinUnitLevInt As Integer = -1, _
Optional ByVal MaxUnitLevInt As Integer = -1, _
Optional ByVal MaxNumUnitLevsInt As Integer = 0, _
Optional ByVal RoundUpBool As Boolean = False, _
Optional ByVal FormatStr As String = "N0", _
Optional ByVal FmtProvider As System.IFormatProvider = Nothing _
) As String
Return NumToLongStr( _
NumDbl:=TS.TotalDays, _
NumUnitInfoItms:=TimeUnitInfoItms, _
ConjStr:=ConjStr, _
MinUnitLevInt:=MinUnitLevInt, _
MaxUnitLevInt:=MaxUnitLevInt, _
MaxNumUnitLevsInt:=MaxNumUnitLevsInt, _
RoundUpBool:=RoundUpBool, _
FormatStr:=FormatStr, _
FmtProvider:=FmtProvider _
)
End Function
''' <summary>
''' Call TimeSpanToStr with TimeLongEnUnitInfoItms.
''' </summary>
''' <param name="TS"></param>
''' <param name="MinUnitLevInt"></param>
''' <param name="MaxUnitLevInt"></param>
''' <param name="MaxNumUnitLevsInt"></param>
''' <param name="RoundUpBool"></param>
''' <param name="FormatStr"></param>
''' <param name="FmtProvider"></param>
''' <returns></returns>
''' <remarks></remarks>
Public Function TimeSpanToLongEnStr( _
ByVal TS As TimeSpan, _
Optional ByVal MinUnitLevInt As Integer = -1, _
Optional ByVal MaxUnitLevInt As Integer = -1, _
Optional ByVal MaxNumUnitLevsInt As Integer = 0, _
Optional ByVal RoundUpBool As Boolean = False, _
Optional ByVal FormatStr As String = "N0", _
Optional ByVal FmtProvider As System.IFormatProvider = Nothing _
) As String
Return TimeSpanToStr( _
TS:=TS, _
TimeUnitInfoItms:=TimeLongEnUnitInfoItms, _
MinUnitLevInt:=MinUnitLevInt, _
MaxUnitLevInt:=MaxUnitLevInt, _
MaxNumUnitLevsInt:=MaxNumUnitLevsInt, _
RoundUpBool:=RoundUpBool, _
FormatStr:=FormatStr, _
FmtProvider:=FmtProvider _
)
End Function
See ipdata.co a service I built that is fast and has reliable performance thanks to having 10 global endpoints each able to handle >10,000 requests per second!
This answer uses a 'test' API Key that is very limited and only meant for testing a few calls. Signup for your own Free API Key and get up to 1500 requests daily for development.
This snippet will return the details of your current ip. To lookup other ip addresses, simply append the ip to the https://api.ipdata.co?api-key=test url eg.
https://api.ipdata.co/1.1.1.1?api-key=test
The API also provides an is_eu
field indicating whether the user is in an EU country.
$.get("https://api.ipdata.co?api-key=test", function (response) {_x000D_
$("#response").html(JSON.stringify(response, null, 4));_x000D_
}, "jsonp");
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<pre id="response"></pre>
_x000D_
Here's the fiddle; https://jsfiddle.net/ipdata/6wtf0q4g/922/
I also wrote this detailed analysis of 8 of the best IP Geolocation APIs.
If you're looking for an example of an NP-complete problem then I suggest you take a look at 3-SAT.
The basic premise is you have an expression in conjunctive normal form, which is a way of saying you have a series of expressions joined by ORs that all must be true:
(a or b) and (b or !c) and (d or !e or f) ...
The 3-SAT problem is to find a solution that will satisfy the expression where each of the OR-expressions has exactly 3 booleans to match:
(a or !b or !c) and (!a or b or !d) and (b or !c or d) ...
A solution to this one might be (a=T, b=T, c=F, d=F). However, no algorithm has been discovered that will solve this problem in the general case in polynomial time. What this means is that the best way to solve this problem is to do essentially a brute force guess-and-check and try different combinations until you find one that works.
What's special about the 3-SAT problem is that ANY NP-complete problem can be reduced to a 3-SAT problem. This means that if you can find a polynomial-time algorithm to solve this problem then you get $1,000,000, not to mention the respect and admiration of computer scientists and mathematicians around the world.
var data = {_x000D_
"items": [{_x000D_
"id": 1,_x000D_
"category": "cat1"_x000D_
}, {_x000D_
"id": 2,_x000D_
"category": "cat2"_x000D_
}, {_x000D_
"id": 3,_x000D_
"category": "cat1"_x000D_
}, {_x000D_
"id": 4,_x000D_
"category": "cat2"_x000D_
}, {_x000D_
"id": 5,_x000D_
"category": "cat1"_x000D_
}]_x000D_
};_x000D_
//Filters an array of numbers to include only numbers bigger then zero._x000D_
//Exact Data you want..._x000D_
var returnedData = $.grep(data.items, function(element) {_x000D_
return element.category === "cat1" && element.id === 3;_x000D_
}, false);_x000D_
console.log(returnedData);_x000D_
$('#id').text('Id is:-' + returnedData[0].id)_x000D_
$('#category').text('Category is:-' + returnedData[0].category)_x000D_
//Filter an array of numbers to include numbers that are not bigger than zero._x000D_
//Exact Data you don't want..._x000D_
var returnedOppositeData = $.grep(data.items, function(element) {_x000D_
return element.category === "cat1";_x000D_
}, true);_x000D_
console.log(returnedOppositeData);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>_x000D_
<p id='id'></p>_x000D_
<p id='category'></p>
_x000D_
The $.grep()
method eliminates items from an array as necessary so that only remaining items carry a given search. The test is a function that is passed an array item and the index of the item within the array. Only if the test returns true will the item be in the result array.
sys.path
. See site
module.A larger list of additional Python file-extensions (mostly rare and unofficial) can be found at http://dcjtech.info/topic/python-file-extensions/
The error is that you cannot initialize a static const char*
within the class. You can only initialize integer variables there.
You need to declare the member variable in the class, and then initialize it outside the class:
// header file
class Foo {
static const char *SOMETHING;
// rest of class
};
// cpp file
const char *Foo::SOMETHING = "sommething";
If this seems annoying, think of it as being because the initialization can only appear in one translation unit. If it was in the class definition, that would usually be included by multiple files. Constant integers are a special case (which means the error message perhaps isn't as clear as it might be), and compilers can effectively replace uses of the variable with the integer value.
In contrast, a char*
variable points to an actual object in memory, which is required to really exist, and it's the definition (including initialization) which makes the object exist. The "one definition rule" means you therefore don't want to put it in a header, because then all translation units including that header would contain the definition. They could not be linked together, even though the string contains the same characters in both, because under current C++ rules you've defined two different objects with the same name, and that's not legal. The fact that they happen to have the same characters in them doesn't make it legal.
An angular solution using $anchorScroll
taken from a now archived blog post by Ben Lesh, which is also reproduced in some detail at this SO answer he contributed (including a rewrite of how to do this within a routing):
app.controller('MainCtrl', function($scope, $location, $anchorScroll) {
var i = 1;
$scope.items = [{ id: 1, name: 'Item 1' }];
$scope.addItem = function (){
i++;
//add the item.
$scope.items.push({ id: i, name: 'Item ' + i});
//now scroll to it.
$location.hash('item' + i);
$anchorScroll();
};
});
And here is the plunker, from the blog that provided this solution: http://plnkr.co/edit/xi2r8wP6ZhQpmJrBj1jM?p=preview
Important to note that the template at that plunker includes this, which sets up the id
that you're using $anchorScroll
to scroll to:
<li ng-repeat="item in items"
id="item{{item.id}}"
>{{item.name}</li>
And if you care for a pure javascript solution, here is one:
Invoke runScroll in your code with parent container id and target scroll id:
function runScroll(parentDivId,targetID) {
var longdiv;
longdiv = document.querySelector("#" + parentDivId);
var div3pos = document.getElementById(targetID).offsetTop;
scrollTo(longdiv, div3pos, 600);
}
function scrollTo(element, to, duration) {
if (duration < 0) return;
var difference = to - element.scrollTop;
var perTick = difference / duration * 10;
setTimeout(function () {
element.scrollTop = element.scrollTop + perTick;
if (element.scrollTop == to) return;
scrollTo(element, to, duration - 10);
}, 10);
}
Reference: Cross browser JavaScript (not jQuery...) scroll to top animation
I found this much simpler. Simply type this into the terminal:
PATH=$PATH:C:\[pythondir]\scripts
I just type following keywords in the opened terminal;
See details in the below image. (VSCode version 1.19.1 - windows 10 OS)
It works on VS Code Mac as well. I tried it with VSCode (Version 1.20.1)
If you are having this issue in a Docker container just make sure that node_modules are not added in the .dockerignore file.
I had the same issue sh1 : react scripts not found. For me this was the solution
fs.exists(path, callback)
and fs.existsSync(path)
are deprecated now, see https://nodejs.org/api/fs.html#fs_fs_exists_path_callback and https://nodejs.org/api/fs.html#fs_fs_existssync_path.
To test the existence of a file synchronously one can use ie. fs.statSync(path)
. An fs.Stats
object will be returned if the file exists, see https://nodejs.org/api/fs.html#fs_class_fs_stats, otherwise an error is thrown which will be catched by the try / catch statement.
var fs = require('fs'),
path = '/path/to/my/file',
stats;
try {
stats = fs.statSync(path);
console.log("File exists.");
}
catch (e) {
console.log("File does not exist.");
}
You would detect the requesting browsers user agent string, and then decide based on what it is if it's coming from a mobile browser or not. This device is not perfect, and never will be due to the fact that user agents aren't standardized for mobile devices (at least not to my knowledge).
This site will help you create the code: http://www.hand-interactive.com/resources/detect-mobile-javascript.htm
Example:
You could get the user agent in javascript by doing this:
var uagent = navigator.userAgent.toLowerCase();
And then do the check's in the same format as this (just using iPhone as a quick example, but others would need to be a little bit different)
function DetectIphone()
{
if (uagent.search("iphone") > -1)
alert('true');
else
alert('false');
}
Edit
You'd create a simple HTML page like so:
<html>
<head>
<title>Mobile Detection</title>
</head>
<body>
<input type="button" OnClick="DetectIphone()" value="Am I an Iphone?" />
</body>
</html>
<script>
function DetectIphone()
{
var uagent = navigator.userAgent.toLowerCase();
if (uagent.search("iphone") > -1)
alert('true');
else
alert('false');
}
</script>
<-
does assignment in the current environment.
When you're inside a function R creates a new environment for you. By default it includes everything from the environment in which it was created so you can use those variables as well but anything new you create will not get written to the global environment.
In most cases <<-
will assign to variables already in the global environment or create a variable in the global environment even if you're inside a function. However, it isn't quite as straightforward as that. What it does is checks the parent environment for a variable with the name of interest. If it doesn't find it in your parent environment it goes to the parent of the parent environment (at the time the function was created) and looks there. It continues upward to the global environment and if it isn't found in the global environment it will assign the variable in the global environment.
This might illustrate what is going on.
bar <- "global"
foo <- function(){
bar <- "in foo"
baz <- function(){
bar <- "in baz - before <<-"
bar <<- "in baz - after <<-"
print(bar)
}
print(bar)
baz()
print(bar)
}
> bar
[1] "global"
> foo()
[1] "in foo"
[1] "in baz - before <<-"
[1] "in baz - after <<-"
> bar
[1] "global"
The first time we print bar we haven't called foo
yet so it should still be global - this makes sense. The second time we print it's inside of foo
before calling baz
so the value "in foo" makes sense. The following is where we see what <<-
is actually doing. The next value printed is "in baz - before <<-" even though the print statement comes after the <<-
. This is because <<-
doesn't look in the current environment (unless you're in the global environment in which case <<-
acts like <-
). So inside of baz
the value of bar stays as "in baz - before <<-". Once we call baz
the copy of bar inside of foo
gets changed to "in baz" but as we can see the global bar
is unchanged. This is because the copy of bar
that is defined inside of foo
is in the parent environment when we created baz
so this is the first copy of bar
that <<-
sees and thus the copy it assigns to. So <<-
isn't just directly assigning to the global environment.
<<-
is tricky and I wouldn't recommend using it if you can avoid it. If you really want to assign to the global environment you can use the assign function and tell it explicitly that you want to assign globally.
Now I change the <<-
to an assign statement and we can see what effect that has:
bar <- "global"
foo <- function(){
bar <- "in foo"
baz <- function(){
assign("bar", "in baz", envir = .GlobalEnv)
}
print(bar)
baz()
print(bar)
}
bar
#[1] "global"
foo()
#[1] "in foo"
#[1] "in foo"
bar
#[1] "in baz"
So both times we print bar inside of foo
the value is "in foo" even after calling baz
. This is because assign
never even considered the copy of bar
inside of foo because we told it exactly where to look. However, this time the value of bar in the global environment was changed because we explicitly assigned there.
Now you also asked about creating local variables and you can do that fairly easily as well without creating a function... We just need to use the local
function.
bar <- "global"
# local will create a new environment for us to play in
local({
bar <- "local"
print(bar)
})
#[1] "local"
bar
#[1] "global"
It would be easier to recreate the data frame. This would also interpret the columns types from scratch.
headers = df.iloc[0]
new_df = pd.DataFrame(df.values[1:], columns=headers)
You need to explicitly ask for the content type.
Add this line:
request.ContentType = "application/json; charset=utf-8";
At the appropriate place
From react-native --help
uninstall [options] uninstall and unlink native dependencies
Ex:
react-native uninstall react-native-vector-icons
It will uninstall and unlink its dependencies.
L = ['L','O','L']
makeitastring = ''.join(map(str, L))
Check whether you are actually under a github repo.
So, listing of .git/ should give you results..otherwise you may be some level outside your repo.
Now, cd to your repo and you are good to go.
std::vector
has random-access iterators. You can do pointer arithmetic with them. In particular, this my_vec.begin() + my_vec.size() == my_vec.end()
always holds. So you could do
const vector<type>::const_iterator pos = std::find_if( firstVector.begin()
, firstVector.end()
, some_predicate(parameter) );
if( position != firstVector.end() ) {
const vector<type>::size_type idx = pos-firstVector.begin();
doAction( secondVector[idx] );
}
As an alternative, there's always std::numeric_limits<vector<type>::size_type>::max()
to be used as an invalid value.
One major disadvantage of SPA - SEO. Only recently Google and Bing started indexing Ajax-based pages by executing JavaScript during crawling, and still in many cases pages are being indexed incorrectly.
While developing SPA, you will be forced to handle SEO issues, probably by post-rendering all your site and creating static html snapshots for crawler's use. This will require a solid investment in a proper infrastructures.
Since writing this answer a while ago, I gain much more experience with Single Page Apps (namely, AngularJS 1.x) - so I have more info to share.
In my opinion, the main disadvantage of SPA applications is SEO, making them limited to kind of "dashboard" apps only. In addition, you are going to have a much harder times with caching, compared to classic solutions. For example, in ASP.NET caching is extreamly easy - just turn on OutputCaching and you are good: the whole HTML page will be cached according to URL (or any other parameters). However, in SPA you will need to handle caching yourself (by using some solutions like second level cache, template caching, etc..).
Use a Regular Expression:
string test = "(test)";
string word = Regex.Match(test, @"\((\w+)\)").Groups[1].Value;
Console.WriteLine(word);
To save others a few seconds, and to save them from having to read the manual, here's the short answer. Add this to the top of your make file:
.DEFAULT_GOAL := mytarget
mytarget will now be the target that is run if "make" is executed and no target is specified.
If you have an older version of make (<= 3.80), this won't work. If this is the case, then you can do what anon mentions, simply add this to the top of your make file:
.PHONY: default
default: mytarget ;
References: https://www.gnu.org/software/make/manual/html_node/How-Make-Works.html
It's pretty crazy town that the only way to make checked false is to omit any values. With Angular 1.x, you can do this:
<input type="radio" ng-checked="false">
which is a lot more sane, if you need to make it unchecked.
If you compile multiple files in the same line, ensure that you use javac only once and not for every class file.
I m agree with @ReNjITh.R answer but If you want to display error message just beside textbox. Just like below
<html>
<head>
<script type="text/javascript">
function validate()
{
if(myform.fname.value.length==0)
{
document.getElementById('errfn').innerHTML="this is invalid name";
}
}
</script>
</head>
<body>
<form name="myform">
First_Name
<input type=text id=fname name=fname onblur="validate()" /><span id="errfn"></span>
<br> <br>
Last_Name
<input type=text id=lname name=lname onblur="validate()"/><br>
<input type=button value=check />
</form>
</body>
Work out the solution according to what you want...
There are two things that getResource
/getResourceAsStream()
will get from the class it is called on...
So if you do
this.getClass().getResource("foo.txt");
it will attempt to load foo.txt from the same package as the "this" class and with the class loader of the "this" class. If you put a "/" in front then you are absolutely referencing the resource.
this.getClass().getResource("/x/y/z/foo.txt")
will load the resource from the class loader of "this" and from the x.y.z package (it will need to be in the same directory as classes in that package).
Thread.currentThread().getContextClassLoader().getResource(name)
will load with the context class loader but will not resolve the name according to any package (it must be absolutely referenced)
System.class.getResource(name)
Will load the resource with the system class loader (it would have to be absolutely referenced as well, as you won't be able to put anything into the java.lang package (the package of System).
Just take a look at the source. Also indicates that getResourceAsStream just calls "openStream" on the URL returned from getResource and returns that.
You should set the format of the ie font to 'embedded-opentype' and not 'eot'. For example:
src: url('fontname.eot?#iefix') format('embedded-opentype')
Try this
var myarray = ["item 1", "item 2", "item 3", "item 4"];
//removes the first element of the array, and returns that element apart from item 1.
myarray.shift();
console.log(myarray);
One trick for this, for webkit browsers, is to create an invisible scrollbar, and then make it appear on hover. This method does not affect the scrolling area width as the space needed for the scrollbar is already there.
Something like this:
body {_x000D_
height: 500px;_x000D_
&::-webkit-scrollbar {_x000D_
background-color: transparent;_x000D_
width: 10px;_x000D_
}_x000D_
&::-webkit-scrollbar-thumb {_x000D_
background-color: transparent;_x000D_
}_x000D_
}_x000D_
_x000D_
body:hover {_x000D_
&::-webkit-scrollbar-thumb {_x000D_
background-color: black;_x000D_
}_x000D_
}_x000D_
_x000D_
.full-width {_x000D_
width: 100%;_x000D_
background: blue;_x000D_
padding: 30px;_x000D_
color: white;_x000D_
}
_x000D_
some content here_x000D_
_x000D_
<div class="full-width">does not change</div>
_x000D_
Debug -> Delete All Breakpoints ( http://darrinbishop.com/blog/2010/06/sharepoint-2010-hangs-after-visual-studio-2010-f5-debugging ) After that you can use them again, but do it once. It will remove some kind of "invalid" breakpoints too and then loading symbols will be fast again. I was chasing this issue for days :(.
Axtavt answer is correct.
This is how your resolver should look like (annotations based):
@Bean
UrlBasedViewResolver resolver(){
UrlBasedViewResolver resolver = new UrlBasedViewResolver();
resolver.setPrefix("/views/");
resolver.setSuffix(".jsp");
resolver.setViewClass(JstlView.class);
return resolver;
}
Obviously the name of your views directory should change based on your project.
Little hack for you:
/**
@method uniqueDeviceIdentifier
@abstract A unique device identifier is a hash value composed from various hardware identifiers such
as the device’s serial number. It is guaranteed to be unique for every device but cannot
be tied to a user account. [UIDevice Class Reference]
@return An 1-way hashed identifier unique to this device.
*/
+ (NSString *)uniqueDeviceIdentifier {
NSString *systemId = nil;
// We collect it as long as it is available along with a randomly generated ID.
// This way, when this becomes unavailable we can map existing users so the
// new vs returning counts do not break.
if (([[[UIDevice currentDevice] systemVersion] floatValue] < 6.0f)) {
SEL udidSelector = NSSelectorFromString(@"uniqueIdentifier");
if ([[UIDevice currentDevice] respondsToSelector:udidSelector]) {
systemId = [[UIDevice currentDevice] performSelector:udidSelector];
}
}
else {
systemId = [NSUUID UUID];
}
return systemId;
}
Try this code:
using System;
namespace Array
{
class Program
{
static void Main()
{
int[] number = new int[] {5, 5, 6, 7};
int sum = 0;
for (int i = 0; i <number.Length; i++)
{
sum += number[i];
}
Console.WriteLine(sum);
}
}
}
The result is:
23
If you want to retain only alphabets and spaces, you can do:
str.replace(/[^a-zA-Z ]+/g, '').replace('/ {2,}/',' ')
Not orthodox, but it works for me sometimes; set your comment as another attribute:
<node usefulAttr="foo" comment="Your comment here..."/>
To delete file:
del PATH_TO_FILE
To delete folder with all files in it:
rmdir /s /q PATH_TO_FOLDER
To delete all files from specific folder (not deleting folder itself) is a little bit complicated. del /s *.*
cannot delete folders, but removes files from all subfolder. So two commands are needed:
del /q PATH_TO_FOLDER\*.*
for /d %i in (PATH_TO_FOLDER\*.*) do @rmdir /s /q "%i"
This is the Smallest and easiest code.
var minDate = new Date();
minDate.setMonth(minDate.getMonth() - 3);
Declare variable which has current date. then just by using setMonth inbuilt function we can get 3 month back date.
You need the xml.etree.ElementTree.fromstring(text)
from xml.etree.ElementTree import XML, fromstring
myxml = fromstring(text)
VAR=$(scan)
Exactly the same way as for programs.
Simply:
/^([^0-9]*)$/
That pattern matches any number of characters that is not 0
through 9
.
I recommend checking out http://regexpal.com/. It will let you easily test out a regex.
I just thought I'd mention something here which I had to spent a long time experimenting with before I finally realised what was going on. This may be so obvious to everyone here that they haven't bothered mentioning it. But it would've helped me if they had, so on that principle...!
NB: I am using Jython specifically, v 2.7, so just possibly this may not apply to CPython...
NB2: the first two lines of my .py file here are:
# -*- coding: utf-8 -*-
from __future__ import print_function
The "%" (AKA "interpolation operator") string construction mechanism causes ADDITIONAL problems too... If the default encoding of the "environment" is ASCII and you try to do something like
print( "bonjour, %s" % "fréd" ) # Call this "print A"
You will have no difficulty running in Eclipse... In a Windows CLI (DOS window) you will find that the encoding is code page 850 (my Windows 7 OS) or something similar, which can handle European accented characters at least, so it'll work.
print( u"bonjour, %s" % "fréd" ) # Call this "print B"
will also work.
If, OTOH, you direct to a file from the CLI, the stdout encoding will be None, which will default to ASCII (on my OS anyway), which will not be able to handle either of the above prints... (dreaded encoding error).
So then you might think of redirecting your stdout by using
sys.stdout = codecs.getwriter('utf8')(sys.stdout)
and try running in the CLI piping to a file... Very oddly, print A above will work... But print B above will throw the encoding error! The following will however work OK:
print( u"bonjour, " + "fréd" ) # Call this "print C"
The conclusion I have come to (provisionally) is that if a string which is specified to be a Unicode string using the "u" prefix is submitted to the %-handling mechanism it appears to involve the use of the default environment encoding, regardless of whether you have set stdout to redirect!
How people deal with this is a matter of choice. I would welcome a Unicode expert to say why this happens, whether I've got it wrong in some way, what the preferred solution to this, whether it also applies to CPython, whether it happens in Python 3, etc., etc.
No need to use a macro. Supposing your first string is in A1.
=RIGHT(A1, 4)
Drag this down and you will get your four last characters.
Edit: To be sure, if you ever have sequences like 'ABC DEF' and want the last four LETTERS and not CHARACTERS you might want to use trimspaces()
=RIGHT(TRIMSPACES(A1), 4)
Edit: As per brettdj's suggestion, you may want to check that your string is actually 4-character long or more:
=IF(TRIMSPACES(A1)>=4, RIGHT(TRIMSPACES(A1), 4), TRIMSPACES(A1))
Just use div { padding: 20px; }
and substract 40px
from your original div
width.
Like Philip Wills pointed out, you can also use box-sizing
instead of substracting 40px
:
div {
padding: 20px;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
The -moz-box-sizing
is for Firefox.
You need to use
$rootScope.$broadcast()
in the controller that must send datas. And in the one that receive those datas, you use
$scope.$on
Here is a fiddle that i forked a few time ago (I don't know who did it first anymore
Well.. arrays are useful to pass as constants (if they were) as variants parameters.
There is no built-in operator to do it in Go. You need to iterate over the array. You can write your own function to do it, like this:
func stringInSlice(a string, list []string) bool {
for _, b := range list {
if b == a {
return true
}
}
return false
}
If you want to be able to check for membership without iterating over the whole list, you need to use a map instead of an array or slice, like this:
visitedURL := map[string]bool {
"http://www.google.com": true,
"https://paypal.com": true,
}
if visitedURL[thisSite] {
fmt.Println("Already been here.")
}
$(element).on("click mousedown mouseup focus blur keydown change",function(e){
console.log(e);
});
That will get you a lot (but not all) of the information on if an event is fired... other than manually coding it like this, I can't think of any other way to do that.
Similar to 1000Bugy's answer but simpler because you don't have to make an anchor on the fly and dispatch a click event manually (plus an IE fix).
If you make your download button an anchor you can highjack it right before the default anchor functionality is run.
So onAnchorClick
you can set the anchor href to the canvas base64 image and the anchor download attribute to whatever you want to name your image.
This does not work in (the current) IE because it doesn't implement the download attribute and prevents download of data uris. But this can be fixed by using window.navigator.msSaveBlob
instead.
So your anchor click event handler would be as followed (where anchor
, canvas
and fileName
are scope lookups):
function onClickAnchor(e) {
if (window.navigator.msSaveBlob) {
window.navigator.msSaveBlob(canvas.msToBlob(), fileName);
e.preventDefault();
} else {
anchor.setAttribute('download', fileName);
anchor.setAttribute('href', canvas.toDataURL());
}
}
Here's a fiddle
You could query an LDAP server from the command line with ldap-utils: ldapsearch, ldapadd, ldapmodify
This copies the 5 cells to the right of the activecell. If you have a range selected, the active cell is the top left cell in the range.
Sub Copy5CellsToRight()
ActiveCell.Offset(, 1).Resize(1, 5).Copy
End Sub
If you want to include the activecell in the range that gets copied, you don't need the offset:
Sub ExtendAndCopy5CellsToRight()
ActiveCell.Resize(1, 6).Copy
End Sub
Note that you don't need to select before copying.
.navigationBarItems
modifier takes any view you want:
struct ContentView: View {
var body: some View {
NavigationView {
Text("SwiftUI")
.navigationBarItems(leading:
HStack {
Image(systemName: "trash")
Text("Trash")
}
)
}
}
}
.navigationBarItems(trailing: Image(systemName: "trash") )
.navigationBarItems(leading: Image(systemName: "trash.fill"),
trailing: Image(systemName: "trash")
)
You can use a button for each if you need an action for each of them.
You can set the flag directly using setter method. In Kotlin or
is the replacement for the Java bitwise or |
.
intent.flags = FLAG_ACTIVITY_NEW_TASK or FLAG_ACTIVITY_CLEAR_TASK
If you plan to use this regularly, create an Intent extension function
fun Intent.clearStack() {
flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
}
You can then directly call this function before starting the intent
intent.clearStack()
If you need the option to add additional flags in other situations, add an optional param to the extension function.
fun Intent.clearStack(additionalFlags: Int = 0) {
flags = additionalFlags or Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK
}
Here is a simple context manager that prints to the console and writes the same output to an file. It also writes any exceptions to the file.
import traceback
import sys
# Context manager that copies stdout and any exceptions to a log file
class Tee(object):
def __init__(self, filename):
self.file = open(filename, 'w')
self.stdout = sys.stdout
def __enter__(self):
sys.stdout = self
def __exit__(self, exc_type, exc_value, tb):
sys.stdout = self.stdout
if exc_type is not None:
self.file.write(traceback.format_exc())
self.file.close()
def write(self, data):
self.file.write(data)
self.stdout.write(data)
def flush(self):
self.file.flush()
self.stdout.flush()
To use the context manager:
print("Print")
with Tee('test.txt'):
print("Print+Write")
raise Exception("Test")
print("Print")
You might want to use the standard template library. It might be slower than the above mentioned code. However, it seems to me clearer and easier to understand.
#include<bitset>
#include<iostream>
template<size_t N>
const std::bitset<N> reverse(const std::bitset<N>& ordered)
{
std::bitset<N> reversed;
for(size_t i = 0, j = N - 1; i < N; ++i, --j)
reversed[j] = ordered[i];
return reversed;
};
// test the function
int main()
{
unsigned long num;
const size_t N = sizeof(num)*8;
std::cin >> num;
std::cout << std::showbase << std::hex;
std::cout << "ordered = " << num << std::endl;
std::cout << "reversed = " << reverse<N>(num).to_ulong() << std::endl;
std::cout << "double_reversed = " << reverse<N>(reverse<N>(num)).to_ulong() << std::endl;
}
Use java.text.Normalizer
to handle this for you.
string = Normalizer.normalize(string, Normalizer.Form.NFD);
// or Normalizer.Form.NFKD for a more "compatable" deconstruction
This will separate all of the accent marks from the characters. Then, you just need to compare each character against being a letter and throw out the ones that aren't.
string = string.replaceAll("[^\\p{ASCII}]", "");
If your text is in unicode, you should use this instead:
string = string.replaceAll("\\p{M}", "");
For unicode, \\P{M}
matches the base glyph and \\p{M}
(lowercase) matches each accent.
Thanks to GarretWilson for the pointer and regular-expressions.info for the great unicode guide.
Selecting all the text you wish to format and pressing CtrlK, CtrlF shortcut applies the indenting and space formatting.
As specified in the Formatting pane (of the language being used) in the Text Editor section of the Options dialog.
See VS Shortcuts for more.
LINQ doesn't prohibit the use of stored procedures. I've used mixed mode with LINQ-SQL and LINQ-storedproc. Personally, I'm glad I don't have to write the stored procs....pwet-tu.
foreach (GridViewRow gvr in gvMyGridView.Rows)
{
string PrimaryKey = gvMyGridView.DataKeys[gvr.RowIndex].Values[0].ToString();
}
You can use this code while doing an iteration with foreach
or for any GridView event like OnRowDataBound
.
Here you can input multiple values for DataKeyNames
by separating with comma ,
. For example, DataKeyNames="ProductID,ItemID,OrderID"
.
You can now access each of DataKeys
by providing its index like below:
string ProductID = gvMyGridView.DataKeys[gvr.RowIndex].Values[0].ToString();
string ItemID = gvMyGridView.DataKeys[gvr.RowIndex].Values[1].ToString();
string OrderID = gvMyGridView.DataKeys[gvr.RowIndex].Values[2].ToString();
You can also use Key Name instead of its index to get the values from DataKeyNames
collection like below:
string ProductID = gvMyGridView.DataKeys[gvr.RowIndex].Values["ProductID"].ToString();
string ItemID = gvMyGridView.DataKeys[gvr.RowIndex].Values["ItemID"].ToString();
string OrderID = gvMyGridView.DataKeys[gvr.RowIndex].Values["OrderID"].ToString();
You can use SilverLight to launch an application from the browser (this will work only on IE and Firefox, newer versions of chrome don't support this)
Example code here
below is an generic example
//base class
class A {
// The virtual method
protected virtualStuff1?():void;
public Stuff2(){
//Calling overridden child method by parent if implemented
this.virtualStuff1 && this.virtualStuff1();
alert("Baseclass Stuff2");
}
}
//class B implementing virtual method
class B extends A{
// overriding virtual method
public virtualStuff1()
{
alert("Class B virtualStuff1");
}
}
//Class C not implementing virtual method
class C extends A{
}
var b1 = new B();
var c1= new C();
b1.Stuff2();
b1.virtualStuff1();
c1.Stuff2();
Val - values are typed storage constants. Once created its value cant be re-assigned. a new value can be defined with keyword val.
eg. val x: Int = 5
Here type is optional as scala can infer it from the assigned value.
Var - variables are typed storage units which can be assigned values again as long as memory space is reserved.
eg. var x: Int = 5
Data stored in both the storage units are automatically de-allocated by JVM once these are no longer needed.
In scala values are preferred over variables due to stability these brings to the code particularly in concurrent and multithreaded code.
For readability, I restructured the query... starting with the apparent top-most level being Table1, which then ties to Table3, and then table3 ties to table2. Much easier to follow if you follow the chain of relationships.
Now, to answer your question. You are getting a large count as the result of a Cartesian product. For each record in Table1 that matches in Table3 you will have X * Y. Then, for each match between table3 and Table2 will have the same impact... Y * Z... So your result for just one possible ID in table 1 can have X * Y * Z records.
This is based on not knowing how the normalization or content is for your tables... if the key is a PRIMARY key or not..
Ex:
Table 1
DiffKey Other Val
1 X
1 Y
1 Z
Table 3
DiffKey Key Key2 Tbl3 Other
1 2 6 V
1 2 6 X
1 2 6 Y
1 2 6 Z
Table 2
Key Key2 Other Val
2 6 a
2 6 b
2 6 c
2 6 d
2 6 e
So, Table 1 joining to Table 3 will result (in this scenario) with 12 records (each in 1 joined with each in 3). Then, all that again times each matched record in table 2 (5 records)... total of 60 ( 3 tbl1 * 4 tbl3 * 5 tbl2 )count would be returned.
So, now, take that and expand based on your 1000's of records and you see how a messed-up structure could choke a cow (so-to-speak) and kill performance.
SELECT
COUNT(*)
FROM
Table1
INNER JOIN Table3
ON Table1.DifferentKey = Table3.DifferentKey
INNER JOIN Table2
ON Table3.Key =Table2.Key
AND Table3.Key2 = Table2.Key2
While Phairoh's solution seems theoretically sound, I have also found another solution to this problem. By passing the UpdatePanels id as a paramater (event target) for the doPostBack function the update panel will post back but not the entire page.
__doPostBack('myUpdatePanelId','')
*note: second parameter is for addition event args
hope this helps someone!
EDIT: so it seems this same piece of advice was given above as i was typing :)
Yes. Have a look at Wikipedia and Cloanto Implementation of INI File Format (see bottom of page).
Try this:
select * from T_PARTNER
where C_DISTRIBUTOR_TYPE_ID = 6 and
translate(C_PARTNER_ID, '.1234567890', '.') is null;
Try the following:
=IF(OR(E2="in play",E2="pre play",E2="complete",E2="suspended"),
IF(E2="in play",IF(F2="closed",3,IF(F2="suspended",2,IF(ISBLANK(F2),1,-2))),
IF(E2="pre play",IF(ISBLANK(F2),-1,-2),IF(E2="completed",IF(F2="closed",2,-2),
IF(E2="suspended",IF(ISBLANK(F2),3,-2))))),-2)
ASCII just defines a 7 bit code page with 128 symbols. ANSI extends this to 8 bit and there are several different code pages for the symbols 128 to 255.
The naming ANSI is not correct because it is actually the ISO/IEC 8859 norm that defines this code pages. See ISO/IEC 8859 for reference. There are 16 code pages ISO/IEC 8859-1 to ISO/IEC 8859-16.
Windows-1252 is again based on ISO/IEC 8859-1 with some modification mainly in the range of the C1 control set in the range 128 to 159. Wikipedia states that Windows-1252 is also refered as ISO-8859-1 with a second hyphen between ISO and 8859. (Unbelievable! Who does something like that?!?)
This answer is based on the answer from Zorawar, but I couldn't leave a comment there.
You can make the auto
(C++11)/typedef
version const
by using cbegin
and cend
instead
for (auto i = path.cbegin(); i != path.cend(); ++i)
std::cout << *i << ' ';
Two ways:
1. Implement ActionListener in your class, then use jBtnSelection.addActionListener(this);
Later, you'll have to define a menthod, public void actionPerformed(ActionEvent e)
. However, doing this for multiple buttons can be confusing, because the actionPerformed
method will have to check the source of each event (e.getSource()
) to see which button it came from.
2. Use anonymous inner classes:
jBtnSelection.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
selectionButtonPressed();
}
} );
Later, you'll have to define selectionButtonPressed()
.
This works better when you have multiple buttons, because your calls to individual methods for handling the actions are right next to the definition of the button.
The second method also allows you to call the selection method directly. In this case, you could call selectionButtonPressed()
if some other action happens, too - like, when a timer goes off or something (but in this case, your method would be named something different, maybe selectionChanged()
).
In ES2017 you can use Object.values()
:
Object.values(data)
At the time of writing support is limited (FireFox and Chrome).All major browsers except IE support this now.
In ES2015 you can use this:
Object.keys(data).map(k => data[k])
I think it is better to change default port of Skype.
Open skype. Go to Tools, Options, Connections, change the port.
Add your multiple columns with comma separations:
UPDATE settings SET postsPerPage = $postsPerPage, style= $style WHERE id = '1'
However, you're not sanitizing your inputs?? This would mean any random hacker could destroy your database. See this question: What's the best method for sanitizing user input with PHP?
Also, is style a number or a string? I'm assuming a string, so it would need to be quoted.
Offering the curl package as an alternative that I found to be reliable when extracting large files from an online database. In a recent project, I had to download 120 files from an online database and found it to half the transfer times and to be much more reliable than download.file.
#install.packages("curl")
library(curl)
#install.packages("RCurl")
library(RCurl)
ptm <- proc.time()
URL <- "https://d396qusza40orc.cloudfront.net/getdata%2Fdata%2Fss06hid.csv"
x <- getURL(URL)
proc.time() - ptm
ptm
ptm1 <- proc.time()
curl_download(url =URL ,destfile="TEST.CSV",quiet=FALSE, mode="wb")
proc.time() - ptm1
ptm1
ptm2 <- proc.time()
y = download.file(URL, destfile = "./data/data.csv", method="curl")
proc.time() - ptm2
ptm2
In this case, rough timing on your URL showed no consistent difference in transfer times. In my application, using curl_download in a script to select and download 120 files from a website decreased my transfer times from 2000 seconds per file to 1000 seconds and increased the reliability from 50% to 2 failures in 120 files. The script is posted in my answer to a question I asked earlier, see .
If you are using 11G XE with Windows, along with tns listener restart, make sure Windows Event Log service is started.
My problem turned out to be Attribute Routing in WebAPI. I created a custom route, and it treated it like a GET instead of WebAPI discovering it was a POST
[Route("")]
[HttpPost] //I added this attribute explicitly, and it worked
public void Post(ProductModel data)
{
...
}
I knew it had to be something silly (that consumes your entire day)
jquery offers a variety of methods to hide the div in a timed manner that do not require setting up and later clearing or resetting interval timers or other event handlers. Here are a few examples.
Pure hide, one second delay
// hide in one second
$('#mydiv').delay(1000).hide(0);
Pure hide, no delay
// hide immediately
$('#mydiv').delay(0).hide(0);
Animated hide
// start hide in one second, take 1/2 second for animated hide effect
$('#mydiv').delay(1000).hide(500);
fade out
// start fade out in one second, take 300ms to fade
$('#mydiv').delay(1000).fadeOut(300);
Additionally, the methods can take a queue name or function as a second parameter (depending on method). Documentation for all the calls above and other related calls can be found here: https://api.jquery.com/category/effects/
stack
is part of memory. it use for input
and output
of functions
. also it use for remembering function's return.
esp
register is remember the stack address.
stack
and esp
are implemented by hardware. also you can implement it yourself. it will make your program very slow.
example:
nop // esp
= 0012ffc4
push 0 //esp
= 0012ffc0 ,Dword[0012ffc0]=00000000
call proc01 // esp
= 0012ffbc ,Dword[0012ffbc] = eip
, eip
= adrr[proc01]
pop eax
// eax
= Dword[esp
], esp
= esp
+ 4
Those files are created and used by Android Studio editor.
You don't need to check in those files to version control.
Git uses .gitignore file, that contains list of files and directories, to know the list of files and directories that don't need to be checked in.
Android studio automatically creates .gitingnore files listing all files and directories which don't need to be checked in to any version control.
You could have simply replaced
names[i] = in.nextLine();
with names[i] = in.next();
Using next() will only return what comes before a space. nextLine() automatically moves the scanner down after returning the current line.
I'm not sure why py.test does not add the current directory in the PYTHONPATH itself, but here's a workaround (to be executed from the root of your repository):
python -m pytest tests/
It works because Python adds the current directory in the PYTHONPATH for you.
package all.is.well;_x000D_
import java.io.IOException;_x000D_
import java.io.RandomAccessFile;_x000D_
import java.util.concurrent.ExecutorService;_x000D_
import java.util.concurrent.Executors;_x000D_
import junit.framework.TestCase;_x000D_
_x000D_
/**_x000D_
* @author Naresh Bhabat_x000D_
* _x000D_
Following implementation helps to deal with extra large files in java._x000D_
This program is tested for dealing with 2GB input file._x000D_
There are some points where extra logic can be added in future._x000D_
_x000D_
_x000D_
Pleasenote: if we want to deal with binary input file, then instead of reading line,we need to read bytes from read file object._x000D_
_x000D_
_x000D_
_x000D_
It uses random access file,which is almost like streaming API._x000D_
_x000D_
_x000D_
* ****************************************_x000D_
Notes regarding executor framework and its readings._x000D_
Please note :ExecutorService executor = Executors.newFixedThreadPool(10);_x000D_
_x000D_
* for 10 threads:Total time required for reading and writing the text in_x000D_
* :seconds 349.317_x000D_
* _x000D_
* For 100:Total time required for reading the text and writing : seconds 464.042_x000D_
* _x000D_
* For 1000 : Total time required for reading and writing text :466.538 _x000D_
* For 10000 Total time required for reading and writing in seconds 479.701_x000D_
*_x000D_
* _x000D_
*/_x000D_
public class DealWithHugeRecordsinFile extends TestCase {_x000D_
_x000D_
static final String FILEPATH = "C:\\springbatch\\bigfile1.txt.txt";_x000D_
static final String FILEPATH_WRITE = "C:\\springbatch\\writinghere.txt";_x000D_
static volatile RandomAccessFile fileToWrite;_x000D_
static volatile RandomAccessFile file;_x000D_
static volatile String fileContentsIter;_x000D_
static volatile int position = 0;_x000D_
_x000D_
public static void main(String[] args) throws IOException, InterruptedException {_x000D_
long currentTimeMillis = System.currentTimeMillis();_x000D_
_x000D_
try {_x000D_
fileToWrite = new RandomAccessFile(FILEPATH_WRITE, "rw");//for random write,independent of thread obstacles _x000D_
file = new RandomAccessFile(FILEPATH, "r");//for random read,independent of thread obstacles _x000D_
seriouslyReadProcessAndWriteAsynch();_x000D_
_x000D_
} catch (IOException e) {_x000D_
// TODO Auto-generated catch block_x000D_
e.printStackTrace();_x000D_
}_x000D_
Thread currentThread = Thread.currentThread();_x000D_
System.out.println(currentThread.getName());_x000D_
long currentTimeMillis2 = System.currentTimeMillis();_x000D_
double time_seconds = (currentTimeMillis2 - currentTimeMillis) / 1000.0;_x000D_
System.out.println("Total time required for reading the text in seconds " + time_seconds);_x000D_
_x000D_
}_x000D_
_x000D_
/**_x000D_
* @throws IOException_x000D_
* Something asynchronously serious_x000D_
*/_x000D_
public static void seriouslyReadProcessAndWriteAsynch() throws IOException {_x000D_
ExecutorService executor = Executors.newFixedThreadPool(10);//pls see for explanation in comments section of the class_x000D_
while (true) {_x000D_
String readLine = file.readLine();_x000D_
if (readLine == null) {_x000D_
break;_x000D_
}_x000D_
Runnable genuineWorker = new Runnable() {_x000D_
@Override_x000D_
public void run() {_x000D_
// do hard processing here in this thread,i have consumed_x000D_
// some time and ignore some exception in write method._x000D_
writeToFile(FILEPATH_WRITE, readLine);_x000D_
// System.out.println(" :" +_x000D_
// Thread.currentThread().getName());_x000D_
_x000D_
}_x000D_
};_x000D_
executor.execute(genuineWorker);_x000D_
}_x000D_
executor.shutdown();_x000D_
while (!executor.isTerminated()) {_x000D_
}_x000D_
System.out.println("Finished all threads");_x000D_
file.close();_x000D_
fileToWrite.close();_x000D_
}_x000D_
_x000D_
/**_x000D_
* @param filePath_x000D_
* @param data_x000D_
* @param position_x000D_
*/_x000D_
private static void writeToFile(String filePath, String data) {_x000D_
try {_x000D_
// fileToWrite.seek(position);_x000D_
data = "\n" + data;_x000D_
if (!data.contains("Randomization")) {_x000D_
return;_x000D_
}_x000D_
System.out.println("Let us do something time consuming to make this thread busy"+(position++) + " :" + data);_x000D_
System.out.println("Lets consume through this loop");_x000D_
int i=1000;_x000D_
while(i>0){_x000D_
_x000D_
i--;_x000D_
}_x000D_
fileToWrite.write(data.getBytes());_x000D_
throw new Exception();_x000D_
} catch (Exception exception) {_x000D_
System.out.println("exception was thrown but still we are able to proceeed further"_x000D_
+ " \n This can be used for marking failure of the records");_x000D_
//exception.printStackTrace();_x000D_
_x000D_
}_x000D_
_x000D_
}_x000D_
}
_x000D_
If you are trying to load the image at your form_load, it's a better idea to use the code
pictureBox1.LoadAsync(@"http://google.com/test.png");
not only loading from web but also no lag in your form loading.
You've got several options:
x
ecute permissions on that directory.x
ecute permissions.
chmod(1)
to change the permissions orsetfacl(1)
command to add an access control list entry for your user account. (This also requires mounting the filesystem with the acl
option; see mount(8)
and fstab(5)
for details on the mount parameter.)It's impossible to suggest the correct approach without knowing more about the problem; why are the directory permissions set the way they are? Why do you need access to that directory?
If you whant only one first string, you can use simple for-loop.
var lines = File.ReadAllLines(pathToTextFile);
var firstFound = false;
for(int index = 0; index < lines.Count; index++)
{
if(!firstFound && lines[index].Contains("CustomerEN"))
{
firstFound = true;
}
if(firstFound && lines[index].Contains("CustomerCh"))
{
//do, what you want, and exit the loop
// return lines[index];
}
}
Using BeautifulSoup the easiest way with less code to just get the strings, without empty lines and crap.
tag = <Parent_Tag_that_contains_the_data>
soup = BeautifulSoup(tag, 'html.parser')
for i in soup.stripped_strings:
print repr(i)
use keyof typeof
const cat = {
name: 'tuntun'
}
const key: string = 'name'
cat[key as keyof typeof cat]
Had the same issue, the reason for it was BCrypt.Net library, compiled using .NET 2.0 framework, while the whole project, which used it, was compiling with .NET 4.0. If symptoms are the same, try download BCrypt source code and rebuild it in release configuration within .NET 4.0. After I'd done it "pre-login handshake" worked fine. Hope it helps anyone.
I found this article very helpful to understand the difference between them:
RUN - RUN instruction allows you to install your application and packages required for it. It executes any commands on top of the current image and creates a new layer by committing the results. Often you will find multiple RUN instructions in a Dockerfile.
CMD -
CMD instruction allows you to set a default command, which will be
executed only when you run container without specifying a command.
If Docker container runs with a command, the default command will be
ignored. If Dockerfile has more than one CMD instruction, all but last
CMD instructions are ignored.
For a simple array, you have the union approach, but you can also use :
_.uniq([2, 1, 2]);
You can fade your background-image in various ways since Firefox 4 ...
Your CSS:
.box {
background: #CCCCCC;
-webkit-transition: background 0.5s linear;
-moz-transition: background 0.5s linear;
-o-transition: background 0.5s linear;
transition: background 0.5s linear;
}
.box:hover {
background: url(path/to/file.png) no-repeat #CCCCCC;
}
Your XHTML:
<div class="box">
Some Text …
</div>
And thats it.
In this way you don't need to worry about if the first array is smaller than the second one.
var arr1 = [1, 2, 3, 4, 5, 6,10],
arr2 = [1, 2, 3, 4, 5, 6, 7, 8, 9];
function array_diff(array1, array2){
var difference = $.grep(array1, function(el) { return $.inArray(el,array2) < 0});
return difference.concat($.grep(array2, function(el) { return $.inArray(el,array1) < 0}));;
}
console.log(array_diff(arr1, arr2));
Simple, ready-to-use and not obsolete solution:
function copyToClipboard(elementIdToCopy, elementIdToNotifyOutcome) {
const contentToCopy = document.getElementById(elementIdToCopy).innerHTML;
const elementToNotifyOutcome = document.getElementById(elementIdToNotifyOutcome);
navigator.clipboard.writeText(contentToCopy).then(function() {
elementToNotifyOutcome.classList.add('success');
elementToNotifyOutcome.innerHTML = 'Copied!';
}, function() {
elementToNotifyOutcome.classList.add('failure');
elementToNotifyOutcome.innerHTML = 'Sorry, did not work.';
});
}
The question was:
I would like to handle errors from Guzzle when the server returns 4xx and 5xx status codes
The other answers are mostly incomplete. 404 and 500 will throw different exceptions.
Also, the question is do you just want to handle the errors or do you want to get the body? I think in most cases it would be sufficient to handle the errors and not get the message body.
I would look at the documentation to check how your version of Guzzle handles it because this may change: https://docs.guzzlephp.org/en/stable/quickstart.html#exceptions
Guzzle 7 (from the docs):
. \RuntimeException
+-- TransferException (implements GuzzleException)
+-- RequestException
+-- BadResponseException
¦ +-- ServerException
¦ +-- ClientException
+-- ConnectException
+-- TooManyRedirectsException
So, you code might look like this:
try {
$response = $client->request('GET', $url);
if ($response->getStatusCode() >= 300) {
$statusCode = $response->getStatusCode();
// handle error
} else {
// is valid URL
}
} catch (TooManyRedirectsException $e) {
// handle too many redirects
} catch (ClientException | ServerException $e) {
// ClientException - A GuzzleHttp\Exception\ClientException is thrown for 400 level errors if the http_errors request option is set to true.
// ServerException - A GuzzleHttp\Exception\ServerException is thrown for 500 level errors if the http_errors request option is set to true.
if ($e->hasResponse()) {
$statusCode = $e->getResponse()->getStatusCode();
}
} catch (ConnectException $e) {
// ConnectException - A GuzzleHttp\Exception\ConnectException exception is thrown in the event of a networking error. This may be any libcurl error, including certificate problems
$handlerContext = $e->getHandlerContext();
if ($handlerContext['errno'] ?? 0) {
// this is the libcurl error code, not the HTTP status code!!!
$errno = (int)($handlerContext['errno']);
}
} catch (\Exception $e) {
// fallback, in case of other exception
}
If you really need the body, you can retrieve it as usual:
https://docs.guzzlephp.org/en/stable/quickstart.html#using-responses
$body = $response->getBody();
There is a lot of confusion here, especially if you read outdated sources.
The basic one is Activity
, which can show Fragments. You can use this combination if you're on Android version > 4.
However, there is also a support library which encompasses the other classes you mentioned: FragmentActivity
, ActionBarActivity
and AppCompat
. Originally they were used to support fragments on Android versions < 4, but actually they're also used to backport functionality from newer versions of Android (material design for example).
The latest one is AppCompat
, the other 2 are older. The strategy I use is to always use AppCompat
, so that the app will be ready in case of backports from future versions of Android.
We copy the JRE's truststore and add our custom certificates to that truststore, then tell the application to use the custom truststore with a system property. This way we leave the default JRE truststore alone.
The downside is that when you update the JRE you don't get its new truststore automatically merged with your custom one.
You could maybe handle this scenario by having an installer or startup routine that verifies the truststore/jdk and checks for a mismatch or automatically updates the truststore. I don't know what happens if you update the truststore while the application is running.
This solution isn't 100% elegant or foolproof but it's simple, works, and requires no code.
I found this one more helpful and simple
DECLARE @StartTime datetime,@EndTime datetime
SELECT @StartTime=GETDATE()
--Your Query to be run goes here--
SELECT @EndTime=GETDATE()
SELECT DATEDIFF(ms,@StartTime,@EndTime) AS [Duration in milliseconds]
Time.now.to_f can help you but it returns seconds.
In general, when working with benchmarks I:
It's a very simple process, so I'm not sure you were really asking this...
I know this is a bit old, but in case another beginner is going through this, I'll share some code that covers a bit more of the basic operations, here is another example that also includes the option to cancel the process and also report to the user the status of the process. I'm going to add on top of the code given by Alex Aza in the solution above
public Form1()
{
InitializeComponent();
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted; //Tell the user how the process went
backgroundWorker1.WorkerReportsProgress = true;
backgroundWorker1.WorkerSupportsCancellation = true; //Allow for the process to be cancelled
}
//Start Process
private void button1_Click(object sender, EventArgs e)
{
backgroundWorker1.RunWorkerAsync();
}
//Cancel Process
private void button2_Click(object sender, EventArgs e)
{
//Check if background worker is doing anything and send a cancellation if it is
if (backgroundWorker1.IsBusy)
{
backgroundWorker1.CancelAsync();
}
}
private void backgroundWorker1_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
for (int i = 0; i < 100; i++)
{
Thread.Sleep(1000);
backgroundWorker1.ReportProgress(i);
//Check if there is a request to cancel the process
if (backgroundWorker1.CancellationPending)
{
e.Cancel = true;
backgroundWorker1.ReportProgress(0);
return;
}
}
//If the process exits the loop, ensure that progress is set to 100%
//Remember in the loop we set i < 100 so in theory the process will complete at 99%
backgroundWorker1.ReportProgress(100);
}
private void backgroundWorker1_ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
progressBar1.Value = e.ProgressPercentage;
}
private void backgroundWorker1_RunWorkerCompleted(object sender, System.ComponentModel.RunWorkerCompletedEventArgs e)
{
if (e.Cancelled)
{
lblStatus.Text = "Process was cancelled";
}
else if (e.Error != null)
{
lblStatus.Text = "There was an error running the process. The thread aborted";
}
else
{
lblStatus.Text = "Process was completed";
}
}
Try the correct constructor http://docs.oracle.com/javase/7/docs/api/java/math/BigDecimal.html#BigDecimal(java.lang.String)
You can directly instanciate the BigDecimal with the String ;)
Example:
BigDecimal bigDecimalValue= new BigDecimal("0.5");
To expand on Ryan's answer, when you are declaring variables (using Dim) you can cheat a little bit by using the predictive text feature in the VBE, as in the image below.
If it shows up in that list, then you can assign an object of that type to a variable. So not just a Worksheet, as Ryan pointed out, but also a Chart, Range, Workbook, Series and on and on.
You set that variable equal to the object you want to manipulate and then you can call methods, pass it to functions, etc, just like Ryan pointed out for this example. You might run into a couple snags when it comes to collections vs objects (Chart or Charts, Range or Ranges, etc) but with trial and error you'll get it for sure.
This can be done by using:
Response.Redirect("http://localhost/YourControllerName/ActionMethodName?querystring1=querystringvalue1&querystring2=querystringvalue2&querystring3=querystringvalue3");
Check out array_merge()
.
$array3 = array_merge($array1, $array2);
Here's my PowerShell Send-MailMessage sample for Gmail...
Tested and working solution:
$EmailFrom = "[email protected]"
$EmailTo = "[email protected]"
$Subject = "Notification from XYZ"
$Body = "this is a notification from XYZ Notifications.."
$SMTPServer = "smtp.gmail.com"
$SMTPClient = New-Object Net.Mail.SmtpClient($SmtpServer, 587)
$SMTPClient.EnableSsl = $true
$SMTPClient.Credentials = New-Object System.Net.NetworkCredential("username", "password");
$SMTPClient.Send($EmailFrom, $EmailTo, $Subject, $Body)
Just change $EmailTo, and username/password in $SMTPClient.Credentials... Do not include @gmail.com in your username...
Assuming I understand what you mean:
If your UserControl
is in a library you can add this to you Toolbox using
Toolbox -> right click -> Choose Items -> Browse
Select your assembly with the UserControl
.
If the UserControl
is part of your project you only need to build the entire solution. After that, your UserControl
should appear in the toolbox.
In general, it is not possible to add a Control from Solution Explorer, only from the Toolbox.
I was interested in setting up graphics for Code Blocks when I ran into a this error: (took me 2 hrs to solve it)
I guess you need to have a bit of luck with this. In my case i just changed the order of contents in Settings menu->Compiler and Debugger->Global compiler settings->Linker settings->Other Linker Options: The working sequence is: -lmingw32 -lSDL -lSDLmain
The add_business_days has a small bug. Try the following with the existing function and the output will be a Saturday.
Startdate = Friday Business days to add = 1 Holidays array = Add date for the following Monday.
I have fixed that in my function below.
function add_business_days($startdate, $buisnessdays, $holidays = array(), $dateformat = 'Y-m-d'){
$i= 1;
$dayx= strtotime($startdate);
$buisnessdays= ceil($buisnessdays);
while($i < $buisnessdays)
{
$day= date('N',$dayx);
$date= date('Y-m-d',$dayx);
if($day < 6 && !in_array($date,$holidays))
$i++;
$dayx= strtotime($date.' +1 day');
}
## If the calculated day falls on a weekend or is a holiday, then add days to the next business day
$day= date('N',$dayx);
$date= date('Y-m-d',$dayx);
while($day >= 6 || in_array($date,$holidays))
{
$dayx= strtotime($date.' +1 day');
$day= date('N',$dayx);
$date= date('Y-m-d',$dayx);
}
return date($dateformat, $dayx);}
There are pretty good solutions here but they don't help to understand why the problem actually happens.
But it's very simple, you just need to understand how logic OR ||
works. Whole expression will evaluate to true
when either of its sides evaluates to true
.
Now let's look at your case. Assume whole details.Payment[0].Status
is Status
and it's a number for brevity. Then we have Status != 0 || Status != 1 || ...
.
Imagine Status = 1
:
( 1 != 0 || 1 != 1 || ... ) =
( true || false || ... ) =
( true || ... ) = ... = true
Now imagine Status = 0
:
( 0 != 0 || 0 != 1 || ... ) =
( false || true || ... ) =
( true || ... ) = ... = true
As you it doesn't even matter what you have as ...
as logical OR
of first two expressions gives you true
which will be the result of the full expression.
What you actually need is logical AND
&&
that will be true only if both its sides are true
.
The "evil" answer did not work for me. Instead, I used what was recommended on the JSHints docs page. If you know the warning that is thrown, you can turn it off for a block of code. For example, I am using some third party code that does not use camel case functions, yet my JSHint rules require it, which led to a warning. To silence it, I wrote:
/*jshint -W106 */
save_state(id);
/*jshint +W106 */
You can first make a conditional selection, and sum up the results of the selection using the sum
function.
>> df = pd.DataFrame({'a': [1, 2, 3]})
>> df[df.a > 1].sum()
a 5
dtype: int64
Having more than one condition:
>> df[(df.a > 1) & (df.a < 3)].sum()
a 2
dtype: int64
This only line helped me (Angular 1.4.8):
$httpProvider.defaults.headers.common['Pragma'] = 'no-cache';
UPD: The problem is IE11 does aggressive caching. When I was looking into Fiddler I noticed that in F12 mode requests are sending "Pragma=no-cache" and endpoint is requested every time I visit a page. But in normal mode endpoint was requested only once at the first time when I visited the page.
It is a server error, not a client error. If server errors weren't to be returned to the client, there wouldn't have been created an entire status code class for them (i.e. 5xx).
You can't hide the fact that you either made a programming error or some service you rely on is unavailable, and that certainly isn't the client's fault. Returning any other range of code in those cases than the 5xx series would make no sense.
RFC 7231 mentions in section 6.6. Server Error 5xx:
The 5xx (Server Error) class of status code indicates that the server is aware that it has erred or is incapable of performing the requested method.
This is exactly the case. There's nothing "internal" about the code "500 Internal Server Error" in the sense that it shouldn't be exposed to the client.
If you're on a browser that supports it you can use CSS to transform the <a>
into a table row:
.table-row { display: table-row; }
.table-cell { display: table-cell; }
<div style="display: table;">
<a href="..." class="table-row">
<span class="table-cell">This is a TD... ish...</span>
</a>
</div>
Of course, you're limited to not putting block elements inside the <a>
.
You also can't mix this in with a regular <table>
Use the following code:
$imageName = time().'.'.$request->input_img->getClientOriginalExtension();
$request->input_img->move(public_path('fotoupload'), $imageName);
Using bluebird promise.coroutine:
let promise = require('bluebird'),
PC = promise.coroutine,
fs = promise.promisifyAll(require('fs'));
let getFiles = PC(function*(dir){
let files = [];
let contents = yield fs.readdirAsync(dir);
for (let i = 0, l = contents.length; i < l; i ++) {
//to remove dot(hidden) files on MAC
if (/^\..*/.test(contents[i])) contents.splice(i, 1);
}
for (let i = 0, l = contents.length; i < l; i ++) {
let content = path.resolve(dir, contents[i]);
let contentStat = yield fs.statAsync(content);
if (contentStat && contentStat.isDirectory()) {
let subFiles = yield getFiles(content);
files = files.concat(subFiles);
} else {
files.push(content);
}
}
return files;
});
//how to use
//easy error handling in one place
getFiles(your_dir).then(console.log).catch(err => console.log(err));
There's a simple one-liner for this:
String target = myData.replaceAll("[^']*(?:'(.*?)')?.*", "$1");
By making the matching group optional, this also caters for quotes not being found by returning a blank in that case.
See live demo.
If you want to use it with groups, you can use:
library(plyr)
mydata<-mtcars
ddply(mydata,.(carb),colwise(sd))
carb mpg cyl disp hp drat wt qsec vs am gear
1 1 6.001349 0.9759001 75.90037 19.78215 0.5548702 0.6214499 0.590867 0.0000000 0.5345225 0.5345225
2 2 5.472152 2.0655911 122.50499 43.96413 0.6782568 0.8269761 1.967069 0.5270463 0.5163978 0.7888106
3 3 1.053565 0.0000000 0.00000 0.00000 0.0000000 0.1835756 0.305505 0.0000000 0.0000000 0.0000000
4 4 3.911081 1.0327956 132.06337 62.94972 0.4575102 1.0536001 1.394937 0.4216370 0.4830459 0.6992059
5 6 NA NA NA NA NA NA NA NA NA NA
6 8 NA NA NA NA NA NA NA NA NA NA
A practical implementation for finding minimum in a Stack of User Designed Object, named: School
The Stack is going to store the Schools in Stack based on the rank assigned to a school in specific region, say, findMin() gives the School where we get the maximum number of applications for Admissions, which in turn is to be defined by the comparator which uses rank associated with the schools in previous season .
The Code for same is below:
package com.practical;
import java.util.Collections;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Stack;
public class CognitaStack {
public School findMin(Stack<School> stack, Stack<School> minStack) {
if (!stack.empty() && !minStack.isEmpty())
return (School) minStack.peek();
return null;
}
public School removeSchool(Stack<School> stack, Stack<School> minStack) {
if (stack.isEmpty())
return null;
School temp = stack.peek();
if (temp != null) {
// if(temp.compare(stack.peek(), minStack.peek())<0){
stack.pop();
minStack.pop();
// }
// stack.pop();
}
return stack.peek();
}
public static void main(String args[]) {
Stack<School> stack = new Stack<School>();
Stack<School> minStack = new Stack<School>();
List<School> lst = new LinkedList<School>();
School s1 = new School("Polam School", "London", 3);
School s2 = new School("AKELEY WOOD SENIOR SCHOOL", "BUCKINGHAM", 4);
School s3 = new School("QUINTON HOUSE SCHOOL", "NORTHAMPTON", 2);
School s4 = new School("OAKLEIGH HOUSE SCHOOL", " SWANSEA", 5);
School s5 = new School("OAKLEIGH-OAK HIGH SCHOOL", "Devon", 1);
School s6 = new School("BritishInter2", "Devon", 7);
lst.add(s1);
lst.add(s2);
lst.add(s3);
lst.add(s4);
lst.add(s5);
lst.add(s6);
Iterator<School> itr = lst.iterator();
while (itr.hasNext()) {
School temp = itr.next();
if ((minStack.isEmpty()) || (temp.compare(temp, minStack.peek()) < 0)) { // minStack.peek().equals(temp)
stack.push(temp);
minStack.push(temp);
} else {
minStack.push(minStack.peek());
stack.push(temp);
}
}
CognitaStack cogStack = new CognitaStack();
System.out.println(" Minimum in Stack is " + cogStack.findMin(stack, minStack).name);
cogStack.removeSchool(stack, minStack);
cogStack.removeSchool(stack, minStack);
System.out.println(" Minimum in Stack is "
+ ((cogStack.findMin(stack, minStack) != null) ? cogStack.findMin(stack, minStack).name : "Empty"));
}
}
Also the School Object is as follows:
package com.practical;
import java.util.Comparator;
public class School implements Comparator<School> {
String name;
String location;
int rank;
public School(String name, String location, int rank) {
super();
this.name = name;
this.location = location;
this.rank = rank;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((location == null) ? 0 : location.hashCode());
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + rank;
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
School other = (School) obj;
if (location == null) {
if (other.location != null)
return false;
} else if (!location.equals(other.location))
return false;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
if (rank != other.rank)
return false;
return true;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getLocation() {
return location;
}
public void setLocation(String location) {
this.location = location;
}
public int getRank() {
return rank;
}
public void setRank(int rank) {
this.rank = rank;
}
public int compare(School o1, School o2) {
// TODO Auto-generated method stub
return o1.rank - o2.rank;
}
}
class SchoolComparator implements Comparator<School> {
public int compare(School o1, School o2) {
return o1.rank - o2.rank;
}
}
This Example covers the following: 1. Implementation of Stack for User defined Objects, here, School 2. Implementation for the hashcode() and equals() method using all fields of Objects to be compared 3. A practical implementation for the scenario where we rqeuire to get the Stack contains operation to be in order of O(1)
Besides all above solutions, check if you have the "id" or any custom defined parameter in the DELETE method is matching the route config.
public void Delete(int id)
{
//some code here
}
If you hit with repeated 405 errors better reset the method signature to default as above and try.
The route config by default will look for id in the URL. So the parameter name id is important here unless you change the route config under App_Start folder.
You may change the data type of the id though.
For example the below method should work just fine:
public void Delete(string id)
{
//some code here
}
Note: Also ensure that you pass the data over the url not the data method that will carry the payload as body content.
DELETE http://{url}/{action}/{id}
Example:
DELETE http://localhost/item/1
Hope it helps.
I have written an article in my blog on how to configure the layout of an AlertDialog with XML style files. The main problem is that you need different style definitions for different layout parameters. Here is a boilerplate based on the AlertDialog style of Holo Light Platform version 19 for a style file that should cover a bunch of the standard layout aspects like text sizes and background colors.
<style name="AppBaseTheme" parent="android:Theme.Holo.Light">
...
<item name="android:alertDialogTheme">@style/MyAlertDialogTheme</item>
<item name="android:alertDialogStyle">@style/MyAlertDialogStyle</item>
...
</style>
<style name="MyBorderlessButton">
<!-- Set background drawable and text size of the buttons here -->
<item name="android:background">...</item>
<item name="android:textSize">...</item>
</style>
<style name="MyButtonBar">
<!-- Define a background for the button bar and a divider between the buttons here -->
<item name="android:divider">....</item>
<item name="android:dividerPadding">...</item>
<item name="android:showDividers">...</item>
<item name="android:background">...</item>
</style>
<style name="MyAlertDialogTitle">
<item name="android:maxLines">1</item>
<item name="android:scrollHorizontally">true</item>
</style>
<style name="MyAlertTextAppearance">
<!-- Set text size and color of title and message here -->
<item name="android:textSize"> ... </item>
<item name="android:textColor">...</item>
</style>
<style name="MyAlertDialogTheme">
<item name="android:windowBackground">@android:color/transparent</item>
<item name="android:windowTitleStyle">@style/MyAlertDialogTitle</item>
<item name="android:windowContentOverlay">@null</item>
<item name="android:windowMinWidthMajor">@android:dimen/dialog_min_width_major</item>
<item name="android:windowMinWidthMinor">@android:dimen/dialog_min_width_minor</item>
<item name="android:windowIsFloating">true</item>
<item name="android:textAppearanceMedium">@style/MyAlertTextAppearance</item>
<!-- If you don't want your own button bar style use
@android:style/Holo.Light.ButtonBar.AlertDialog
and
?android:attr/borderlessButtonStyle
instead of @style/MyButtonBar and @style/MyBorderlessButton -->
<item name="android:buttonBarStyle">@style/MyButtonBar</item>
<item name="android:buttonBarButtonStyle">@style/MyBorderlessButton</item>
</style>
<style name="MyAlertDialogStyle">
<!-- Define background colors of title, message, buttons, etc. here -->
<item name="android:fullDark">...</item>
<item name="android:topDark">...</item>
<item name="android:centerDark">...</item>
<item name="android:bottomDark">...</item>
<item name="android:fullBright">...</item>
<item name="android:topBright">...</item>
<item name="android:centerBright">...</item>
<item name="android:bottomBright">...</item>
<item name="android:bottomMedium">...</item>
<item name="android:centerMedium">...</item>
</style>
Here is a minor improvement for Denis Tulskiy answer. It cuts the time by half
public static long[] generateSeed(String goal, long start, long finish) {
char[] input = goal.toCharArray();
int[] dif = new int[input.length - 1];
for (int i = 1; i < input.length; i++) {
dif[i - 1] = input[i] - input[i - 1];
}
mainLoop:
for (long seed = start; seed < finish; seed++) {
Random random = new Random(seed);
int lastChar = random.nextInt(27);
int base = input[0] - lastChar;
for (int d : dif) {
int nextChar = random.nextInt(27);
if (nextChar - lastChar != d) {
continue mainLoop;
}
lastChar = nextChar;
}
if(random.nextInt(27) == 0){
return new long[]{seed, base};
}
}
throw new NoSuchElementException("Sorry :/");
}
I'd be careful about trying to get too clever here. I think it's confusing as it is and using more advanced nth-child
parameters will only make it more complicated. As for the background color I'd just set that to a variable.
Here goes what I came up with before I realized trying to be too clever might be a bad thing.
#romtest {
$bg: #e5e5e5;
.detailed {
th {
&:nth-child(-2n+6) {
background-color: $bg;
}
}
td {
&:nth-child(3n), &:nth-child(2), &:nth-child(7) {
background-color: $bg;
}
&.last {
&:nth-child(-2n+4){
background-color: $bg;
}
}
}
}
}
and here is a quick demo: http://codepen.io/anon/pen/BEImD
----EDIT----
Here's another approach to avoid retyping background-color
:
#romtest {
%highlight {
background-color: #e5e5e5;
}
.detailed {
th {
&:nth-child(-2n+6) {
@extend %highlight;
}
}
td {
&:nth-child(3n), &:nth-child(2), &:nth-child(7) {
@extend %highlight;
}
&.last {
&:nth-child(-2n+4){
@extend %highlight;
}
}
}
}
}
This should do the trick...
'recalculate all open workbooks
Application.Calculate
'recalculate a specific worksheet
Worksheets(1).Calculate
' recalculate a specific range
Worksheets(1).Columns(1).Calculate
In Centos
sudo yum install php-xml
and restart apache
sudo service httpd restart
This works for me:
int[] list = new int[maximum];
for (int i = 0; i < maximum; i++{
list[i] = put_input_here;
}
This way, it's simple, yet efficient.
Use count()
:
sc=scorm.objects.filter(Header__id=qp.id)
if sc.count() > 0:
...
The advantage over e.g. len()
is, that the QuerySet is not yet evaluated:
count()
performs aSELECT COUNT(*)
behind the scenes, so you should always usecount()
rather than loading all of the record into Python objects and callinglen()
on the result.
Having this in mind, When QuerySets are evaluated can be worth reading.
If you use get()
, e.g. scorm.objects.get(pk=someid)
, and the object does not exists, an ObjectDoesNotExist
exception is raised:
from django.core.exceptions import ObjectDoesNotExist
try:
sc = scorm.objects.get(pk=someid)
except ObjectDoesNotExist:
print ...
Update:
it's also possible to use exists()
:
if scorm.objects.filter(Header__id=qp.id).exists():
....
Returns
True
if the QuerySet contains any results, andFalse
if not. This tries to perform the query in the simplest and fastest way possible, but it does execute nearly the same query as a normal QuerySet query.
Two problems with your code:
I'd change your code to "name=`echo $filename | cut -f 1 -d '.' `", as shown below (again, notice the back ticks surrounding the name variable definition):
$> filename=foo.txt
$> echo $filename
foo.txt
$> name=`echo $filename | cut -f1 -d'.'`
$> echo $name
foo
$>
To get the full calendar name from the month number, you can use calendar.month_name. Please see the documentation for more details: https://docs.python.org/2/library/calendar.html
month_no = 1
month = calendar.month_name[month_no]
# month provides "January":
print(month)
Standard letter-based representations of date parts are great, except the fact they're not so intuitive. The much more convenient way is to identify basic abstractions and a number of specific implementations. Besides, with this approach, you can benefir from autocompletion.
Since we're talking about datetimes here, it seems plausible that the basic abstraction is ISO8601DateTime
. One of the specific implementations is current datetime, the one you need when a makes a request to your backend, hence Now()
class. Second one which is of some use for you is a datetime adjusted to some timezone. Not surprisingly, it's called AdjustedAccordingToTimeZone
. And finally, you need a day of the week in a passed datetime's timezone: there is a LocalDayOfWeek
class for that. So the code looks like the following:
(new LocalDayOfWeek(
new AdjustedAccordingToTimeZone(
new Now(),
new TimeZoneFromString($_POST['timezone'])
)
))
->value();
For more about this approach, take a look here.
C also does a good job at not making anything ambiguous.
Sure the dot could be overloaded to mean both things, but the arrow makes sure that the programmer knows that he's operating on a pointer, just like when the compiler won't let you mix two incompatible types.
webBrowser.NavigateToString(yourString);
I tried to use more than two windows using the Rushy Panchal example above. The intent was to have the change to call more windows with different widgets in them. The butnew function creates different buttons to open different windows. You pass as argument the name of the class containing the window (the second argument is nt necessary, I put it there just to test a possible use. It could be interesting to inherit from another window the widgets in common.
import tkinter as tk
class Demo1:
def __init__(self, master):
self.master = master
self.master.geometry("400x400")
self.frame = tk.Frame(self.master)
self.butnew("Window 1", "ONE", Demo2)
self.butnew("Window 2", "TWO", Demo3)
self.frame.pack()
def butnew(self, text, number, _class):
tk.Button(self.frame, text = text, width = 25, command = lambda: self.new_window(number, _class)).pack()
def new_window(self, number, _class):
self.newWindow = tk.Toplevel(self.master)
_class(self.newWindow, number)
class Demo2:
def __init__(self, master, number):
self.master = master
self.master.geometry("400x400+400+400")
self.frame = tk.Frame(self.master)
self.quitButton = tk.Button(self.frame, text = 'Quit', width = 25, command = self.close_windows)
self.label = tk.Label(master, text=f"this is window number {number}")
self.label.pack()
self.quitButton.pack()
self.frame.pack()
def close_windows(self):
self.master.destroy()
class Demo3:
def __init__(self, master, number):
self.master = master
self.master.geometry("400x400+400+400")
self.frame = tk.Frame(self.master)
self.quitButton = tk.Button(self.frame, text = 'Quit', width = 25, command = self.close_windows)
self.label = tk.Label(master, text=f"this is window number {number}")
self.label.pack()
self.label2 = tk.Label(master, text="THIS IS HERE TO DIFFERENTIATE THIS WINDOW")
self.label2.pack()
self.quitButton.pack()
self.frame.pack()
def close_windows(self):
self.master.destroy()
def main():
root = tk.Tk()
app = Demo1(root)
root.mainloop()
if __name__ == '__main__':
main()
To avoid having the chance to press multiple times the button having multiple windows... that are the same window, I made this script (take a look at this page too)
import tkinter as tk
def new_window1():
global win1
try:
if win1.state() == "normal": win1.focus()
except:
win1 = tk.Toplevel()
win1.geometry("300x300+500+200")
win1["bg"] = "navy"
lb = tk.Label(win1, text="Hello")
lb.pack()
win = tk.Tk()
win.geometry("200x200+200+100")
button = tk.Button(win, text="Open new Window")
button['command'] = new_window1
button.pack()
win.mainloop()
In general, you can't do this. UTF-8 is capable of encoding any Unicode code point. ISO-8859-1 can handle only a tiny fraction of them. So, transcoding from ISO-8859-1 to UTF-8 is no problem. Going backwards from UTF-8 to ISO-8859-1 will cause "replacement characters" (�) to appear in your text when unsupported characters are found.
To transcode text:
byte[] latin1 = ...
byte[] utf8 = new String(latin1, "ISO-8859-1").getBytes("UTF-8");
or
byte[] utf8 = ...
byte[] latin1 = new String(utf8, "UTF-8").getBytes("ISO-8859-1");
You can exercise more control by using the lower-level Charset
APIs. For example, you can raise an exception when an un-encodable character is found, or use a different character for replacement text.
Invalidate Caches/ Restart and then Build -> Rebuild Project helped for me
type
%matplotlib qt
when you want graphs in a separate window and
%matplotlib inline
when you want an inline plot
You don't necessarily have to use the [string]:: prefix. This works in the same way:
if ($version)
{
$request += "/" + $version
}
A variable that is null or empty string evaluates to false.
open looks in the current working directory, which in your case is ~
, since you are calling your script from the ~
directory.
You can fix the problem by either
cd
ing to the directory containing data.csv
before executing the script, or
by using the full path to data.csv
in your script, or
open
and os.listdir
) may be affected by this.I had the following hosts file
127.0.0.1 localhost
192.168.1.2 localhost
and i started getting the error continously and it was very annoying
“Can't bind to local 8600 for debugger”
“Can't bind to local 8601 for debugger”
“Can't bind to local 8602 for debugger” and so on
I deleted the second line from the hosts file
192.168.1.2 localhost
and everything is back to normal.
Hope this helps.
You need to set the path for the preprocessor to search for these include files, if they are not in the project folder.
You can set the path in VC++ Directories, or in Additional Include Directories. Both are found in project settings.
It sounds like you're trying to use log4j from "both ends" (the consumer end and the configuration end).
If you want to code against the slf4j api but determine ahead of time (and programmatically) the configuration of the log4j Loggers that the classpath will return, you absolutely have to have some sort of logging adaptation which makes use of lazy construction.
public class YourLoggingWrapper {
private static boolean loggingIsInitialized = false;
public YourLoggingWrapper() {
// ...blah
}
public static void debug(String debugMsg) {
log(LogLevel.Debug, debugMsg);
}
// Same for all other log levels your want to handle.
// You mentioned TRACE and ERROR.
private static void log(LogLevel level, String logMsg) {
if(!loggingIsInitialized)
initLogging();
org.slf4j.Logger slf4jLogger = org.slf4j.LoggerFactory.getLogger("DebugLogger");
switch(level) {
case: Debug:
logger.debug(logMsg);
break;
default:
// whatever
}
}
// log4j logging is lazily constructed; it gets initialized
// the first time the invoking app calls a log method
private static void initLogging() {
loggingIsInitialized = true;
org.apache.log4j.Logger debugLogger = org.apache.log4j.LoggerFactory.getLogger("DebugLogger");
// Now all the same configuration code that @oers suggested applies...
// configure the logger, configure and add its appenders, etc.
debugLogger.addAppender(someConfiguredFileAppender);
}
With this approach, you don't need to worry about where/when your log4j loggers get configured. The first time the classpath asks for them, they get lazily constructed, passed back and made available via slf4j. Hope this helped!
this.$('#datepicker').datepicker({minDate: 1});
minDate:0
- Enable dates in the calender from the current date. MinDate:1
enable dates in the calender currentDate+1
To Restrict date between from tomorrow and the same day next month u need to give something like
$( "#datepicker" ).datepicker({ minDate: 1, maxDate: "+1M" });
For version 2.6 and up, the dialog is in the "Preferences" dialog, access using Cmd ',':
PyCharm (far left menu) -> Preferences... -> Editor (bottom left section) -> Appearance -> Show line numbers checkbox
I was facing same issue so I have reinstall MySQL 8 with different Authentication Method "Use Legacy Authentication Method (Retain MySQL 5.x compatibility)" then work properly.
Choose Second Method of Authentication while installing.
You can also use,
parent.jQuery("#testdiv").attr("style", content from form);
You can manual disable ssl verfiy, and try again. :)
git config --global http.sslverify false
Even though correct answers have already been posted, I thought I'd add a demo of how you can do this cleanly:
template<typename A, typename B>
std::pair<B,A> flip_pair(const std::pair<A,B> &p)
{
return std::pair<B,A>(p.second, p.first);
}
template<typename A, typename B>
std::multimap<B,A> flip_map(const std::map<A,B> &src)
{
std::multimap<B,A> dst;
std::transform(src.begin(), src.end(), std::inserter(dst, dst.begin()),
flip_pair<A,B>);
return dst;
}
int main(void)
{
std::map<int, double> src;
...
std::multimap<double, int> dst = flip_map(src);
// dst is now sorted by what used to be the value in src!
}
Generic Associative Source (requires C++11)
If you're using an alternate to std::map
for the source associative container (such as std::unordered_map
), you could code a separate overload, but in the end the action is still the same, so a generalized associative container using variadic templates can be used for either mapping construct:
// flips an associative container of A,B pairs to B,A pairs
template<typename A, typename B, template<class,class,class...> class M, class... Args>
std::multimap<B,A> flip_map(const M<A,B,Args...> &src)
{
std::multimap<B,A> dst;
std::transform(src.begin(), src.end(),
std::inserter(dst, dst.begin()),
flip_pair<A,B>);
return dst;
}
This will work for both std::map
and std::unordered_map
as the source of the flip.
If you are using mcedit for makefile edit. you have to see the following mark.
You'll want to use the isalpha()
and isdigit()
standard functions in <ctype.h>
.
char c = 'a'; // or whatever
if (isalpha(c)) {
puts("it's a letter");
} else if (isdigit(c)) {
puts("it's a digit");
} else {
puts("something else?");
}
You can use the positioning method in CSS:
HTML:
<div class="relativediv">
<p>
Make me vertical align as center
</p>
</div>
CSS:
.relativediv{position:relative;border:1px solid #ddd;height:300px;width:300px}
.relativediv p{position:absolute:top:50%;transfrom:translateY(-50%);}
Hope you use this method too.
In my case, I have used a URL object instead Path.
File
File file = new File("my_path");
URL url = file.toURI().toURL();
Resource in classpath using classloader
URL url = MyClass.class.getClassLoader().getResource("resource_name")
When I need to read the content, I can use the following code:
InputStream stream = url.openStream();
And you can access the content using an InputStream.
For above v4
$('#yourselect').on("select2:select", function(e) {
// after selection of select2
});
If you only want to read the first 999,999 (non-header) rows:
read_csv(..., nrows=999999)
If you only want to read rows 1,000,000 ... 1,999,999
read_csv(..., skiprows=1000000, nrows=999999)
nrows : int, default None Number of rows of file to read. Useful for reading pieces of large files*
skiprows : list-like or integer Row numbers to skip (0-indexed) or number of rows to skip (int) at the start of the file
and for large files, you'll probably also want to use chunksize:
chunksize : int, default None Return TextFileReader object for iteration
AWK works as a text interpreter that goes linewise for the whole document and that goes fieldwise for each line. Thus $1, $2...$n are references to the fields of each line ($1 is the first field, $2 is the second field, and so on...).
You can define a field separator by using the "-F" switch under the command line or within two brackets with "FS=...".
Now consider the answer of Jürgen:
echo "1: " | awk -F ":" '/1/ {print $1}'
Above the field, boundaries are set by ":" so we have two fields $1 which is "1" and $2 which is the empty space. After comes the regular expression "/1/" that instructs the filter to output the first field only when the interpreter stumbles upon a line containing such an expression (I mean 1).
The output of the "echo" command is one line that contains "1", so the filter will work...
When dealing with the following example:
echo "1: " | awk '/1/ -F ":" {print $1}'
The syntax is messy and the interpreter chose to ignore the part F ":" and switches to the default field splitter which is the empty space, thus outputting "1:" as the first field and there will be not a second field!
The answer of Jürgen contains the good syntax...
You need to use RegularExpression Attribute, something like this:
[RegularExpression("^[a-zA-Z0-9_\\.-]+@([a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,6}$", ErrorMessage = "E-mail is not valid")]
And don't delete [Required] because [RegularExpression] doesn't affect empty fields.
For content editable stuff (not regular inputs, you need to use selectNodeContents (rather than just selectNode).
NOTE: All the references to "document.selection" and "createTextRange()" are for IE 8 and lower... You'll not likely need to support that monster if you're attempting to do tricky stuff like this.
function selectElemText(elem) {
//Create a range (a range is a like the selection but invisible)
var range = document.createRange();
// Select the entire contents of the element
range.selectNodeContents(elem);
// Don't select, just positioning caret:
// In front
// range.collapse();
// Behind:
// range.collapse(false);
// Get the selection object
var selection = window.getSelection();
// Remove any current selections
selection.removeAllRanges();
// Make the range you have just created the visible selection
selection.addRange(range);
}
Not that performance usually matters with 99% of the times you need to do this, but if you had to do this in a loop several million times I would highly suggest that you use .Equals or == because as soon as it finds a character that doesn't match it throws the whole thing out as false, but if you use the CompareTo it will have to figure out which character is less than the other, leading to slightly worse performance time.
If your app will be running in different countries, I'd recommend that you take a look at the CultureInfo implications and possibly use .Equals. Since I only really write apps for the US (and don't care if it doesn't work properly by someone), I always just use ==.
If you recently reached here as I did when searching for the same error in vain you may find it to be an update to NSS causing failure on CentOS. Test by running yum update and see if you get errors, curl also creates this error. Solution is simple enough just install NSS manually.
Read on...
If you're like me it threw up an error similar to this:
curl: (77) Problem with the SSL CA cert (path? access rights?)
This took some time to solve but found that it wasn't the CA cert because by recreating them and checking all the configuration I had ruled it out. It could have been libcurl so I went in search of updates.
As mentioned I recreated CA certs. You can do this also but it may be a waste of time. http://wiki.centos.org/HowTos/Https
The next step (probably should of been my first) was to check that everything was up-to-date by simply running yum.
$ yum update
$ yum upgrade
This gave me an affirmative answer that there was a bigger problem at play:
Downloading Packages:
error: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: BAD
Problem opening package nss-softokn-freebl-3.14.3–19.el6_6.x86_64.rpm
I started reading about Certificate Verification with NSS and how this new update may be related to my problems.
So yum is broken. This is because nss-softokn-* needs nss-softokn-freebl-* need each other to function. The problem is they don't check each others version for compatibility and in some cases it ends up breaking yum.
Lets go fix things:
$ wget http://mirrors.linode.com/centos/6.6/updates/x86_64/Packages/nsssoftokn-freebl-3.14.3-19.el6_6.x86_64.rpm
$ rpm -Uvh nss-softokn-freebl-3.14.3–19.el6_6.x86_64.rpm
$ yum update
You should of course download from your nearest mirror and check for the correct version / OS etc. We basically download and install the update from the rpm to fix yum. As @grumpysysadmin pointed out you can shorten the commands down. @cwgtex contributed that you should install the upgrade using the RPM command making the process even simplier.
To fix things with wordpress you need to restart your http server.
$ service httpd restart
Try again and success!
I was using an old version of nodemailer 0.4.1 and had this issue. I updated to 0.5.15 and everything is working fine now.
Edited package.json to reflect changes then
npm install