I strongly prefer HomeBrew over MacPorts for installing software from source.
HomeBrew sequesters everything in /usr/local/Cellar so it doesn't spew files all over the place. (Yes, MacPorts keeps everything in /opt/local, but it requires sudo access, and I don't trust MacPorts with root.)
Installing MySQL is as simple as:
brew install mysql
mysql_install_db
To start mysql, in Terminal type:
mysqld&
There's a way to start it upon boot, but I like to start it manually.
CGContextSetFillColorWithColor(context,[[UIColor colorWithRed:(255/255.f) green:(0/255.f) blue: (0/255.f) alpha:1] CGColor]);
It would be something like:
document.getElementById("username").value="Username";
document.forms[0].submit()
Or similar edit: you guys are too fast ;)
You could use pandas for that (although it could be overhead for that task). You could use round, floor and ceil like for usual numbers and any pandas frequency from offset-aliases:
import pandas as pd
import datetime as dt
now = dt.datetime.now()
pd_now = pd.Timestamp(now)
freq = '1d'
pd_round = pd_now.round(freq)
dt_round = pd_round.to_pydatetime()
print(now)
print(dt_round)
"""
2018-06-15 09:33:44.102292
2018-06-15 00:00:00
"""
Like you are having a file abc.txt
and many more?
Create 2 files: fileread.js
and fetchingfile.js
, then in fileread.js
write this code:
function fileread(filename) {
var contents= fs.readFileSync(filename);
return contents;
}
var fs = require("fs"); // file system
//var data = fileread("abc.txt");
module.exports.fileread = fileread;
//data.say();
//console.log(data.toString());
}
In fetchingfile.js
write this code:
function myerror(){
console.log("Hey need some help");
console.log("type file=abc.txt");
}
var ags = require("minimist")(process.argv.slice(2), { string: "file" });
if(ags.help || !ags.file) {
myerror();
process.exit(1);
}
var hello = require("./fileread.js");
var data = hello.fileread(ags.file); // importing module here
console.log(data.toString());
Now, in a terminal: $ node fetchingfile.js --file=abc.txt
You are passing the file name as an argument, moreover include all files in readfile.js
instead of passing it.
Thanks
function pad_2(number)
{
return (number < 10 ? '0' : '') + number;
}
function hours(date)
{
var hours = date.getHours();
if(hours > 12)
return hours - 12; // Substract 12 hours when 13:00 and more
return hours;
}
function am_pm(date)
{
if(date.getHours()==0 && date.getMinutes()==0 && date.getSeconds()==0)
return ''; // No AM for MidNight
if(date.getHours()==12 && date.getMinutes()==0 && date.getSeconds()==0)
return ''; // No PM for Noon
if(date.getHours()<12)
return ' AM';
return ' PM';
}
function date_format(date)
{
return pad_2(date.getDate()) + '/' +
pad_2(date.getMonth()+1) + '/' +
(date.getFullYear() + ' ').substring(2) +
pad_2(hours(date)) + ':' +
pad_2(date.getMinutes()) +
am_pm(date);
}
Code corrected as of Sep 3 '12 at 10:11
You can either use -FLT_MAX
(or -DBL_MAX
) for the maximum magnitude negative number and FLT_MAX
(or DBL_MAX
) for positive. This gives you the range of possible float (or double) values.
You probably don't want to use FLT_MIN
; it corresponds to the smallest magnitude positive number that can be represented with a float, not the most negative value representable with a float.
FLT_MIN
and FLT_MAX
correspond to std::numeric_limits<float>::min()
and std::numeric_limits<float>::max()
.
This displays files with its permisions
stat -c '%a - %n' directory/*
There is a problem with upgrading npm under Windows. The inital install done as part of the nodejs install using an msi package will create an npmrc file:
C:\Program Files\nodejs\node_modules\npm\npmrc
when you update npm using:
npm install -g npm@latest
it will install the new version in:
C:\Users\Jack\AppData\Roaming\npm
assuming that your name is Jack, which is %APPDATA%\npm.
The new install does not include an npmrc file and without it the global root directory will be based on where node was run from, hence it is C:\Program Files\nodejs\node_modules
You can check this by running:
npm root -g
This will not work as npm does not have permission to write into the "Program Files"
directory. You need to copy the npmrc file from the original install into the new install. By default the file only has the line below:
prefix=${APPDATA}\npm
As of Pandas version 0.22, there exists also an alternative to apply
: pipe
, which can be considerably faster than using apply
(you can also check this question for more differences between the two functionalities).
For your example:
df = pd.DataFrame({"my_label": ['A','B','A','C','D','D','E']})
my_label
0 A
1 B
2 A
3 C
4 D
5 D
6 E
The apply
version
df.groupby('my_label').apply(lambda grp: grp.count() / df.shape[0])
gives
my_label
my_label
A 0.285714
B 0.142857
C 0.142857
D 0.285714
E 0.142857
and the pipe
version
df.groupby('my_label').pipe(lambda grp: grp.size() / grp.size().sum())
yields
my_label
A 0.285714
B 0.142857
C 0.142857
D 0.285714
E 0.142857
So the values are identical, however, the timings differ quite a lot (at least for this small dataframe):
%timeit df.groupby('my_label').apply(lambda grp: grp.count() / df.shape[0])
100 loops, best of 3: 5.52 ms per loop
and
%timeit df.groupby('my_label').pipe(lambda grp: grp.size() / grp.size().sum())
1000 loops, best of 3: 843 µs per loop
Wrapping it into a function is then also straightforward:
def get_perc(grp_obj):
gr_size = grp_obj.size()
return gr_size / gr_size.sum()
Now you can call
df.groupby('my_label').pipe(get_perc)
yielding
my_label
A 0.285714
B 0.142857
C 0.142857
D 0.285714
E 0.142857
However, for this particular case, you do not even need a groupby
, but you can just use value_counts
like this:
df['my_label'].value_counts(sort=False) / df.shape[0]
yielding
A 0.285714
C 0.142857
B 0.142857
E 0.142857
D 0.285714
Name: my_label, dtype: float64
For this small dataframe it is quite fast
%timeit df['my_label'].value_counts(sort=False) / df.shape[0]
1000 loops, best of 3: 770 µs per loop
As pointed out by @anmol, the last statement can also be simplified to
df['my_label'].value_counts(sort=False, normalize=True)
If you want to run inside a background service and take the data in foreground use the below one, it is tested and verified.
public class MyService extends Service
implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener,
com.google.android.gms.location.LocationListener {
private static final int ASHIS = 1234;
Intent intentForPendingIntent;
HandlerThread handlerThread;
Looper looper;
GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRrequest;
private static final int UPDATE_INTERVAL = 1000;
private static final int FASTEST_INTERVAL = 100;
private static final int DSIPLACEMENT_UPDATES = 1;
;
private Handler handler1;
private Runnable runable1;
private Location mLastLocation;
private float waitingTime;
private int waiting2min;
private Location locationOld;
private double distance;
private float totalWaiting;
private float speed;
private long timeGpsUpdate;
private long timeOld;
private NotificationManager mNotificationManager;
Notification notification;
PendingIntent resultPendingIntent;
NotificationCompat.Builder mBuilder;
// Sets an ID for the notification
int mNotificationId = 001;
private static final String TAG = "BroadcastService";
public static final String BROADCAST_ACTION = "speedExceeded";
private final Handler handler = new Handler();
Intent intentforBroadcast;
int counter = 0;
private Runnable sendUpdatesToUI;
@Nullable
@Override
public IBinder onBind(Intent intent) {
Toast.makeText(MyService.this, "binder", Toast.LENGTH_SHORT).show();
return null;
}
@Override
public void onCreate() {
showNotification();
intentforBroadcast = new Intent(BROADCAST_ACTION);
Toast.makeText(MyService.this, "created", Toast.LENGTH_SHORT).show();
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
createLocationRequest();
mGoogleApiClient.connect();
}
@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
private void showNotification() {
mBuilder =
(NotificationCompat.Builder) new NotificationCompat.Builder(this)
.setSmallIcon(R.drawable.ic_media_play)
.setContentTitle("Total Waiting Time")
.setContentText(totalWaiting+"");
Intent resultIntent = new Intent(this, trackingFusion.class);
// Because clicking the notification opens a new ("special") activity, there's
// no need to create an artificial back stack.
PendingIntent resultPendingIntent =
PendingIntent.getActivity(
this,
0,
resultIntent,
PendingIntent.FLAG_UPDATE_CURRENT
);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager mNotifyMgr =
(NotificationManager) getSystemService(NOTIFICATION_SERVICE);
// Builds the notification and issues it.
mNotifyMgr.notify(mNotificationId, mBuilder.build());
startForeground(001, mBuilder.getNotification());
}
@Override
public void onLocationChanged(Location location) {
//handler.removeCallbacks(runable);
Toast.makeText(MyService.this, "speed" + speed, Toast.LENGTH_SHORT).show();
timeGpsUpdate = location.getTime();
float delta = (timeGpsUpdate - timeOld) / 1000;
if (location.getAccuracy() < 100) {
speed = location.getSpeed();
distance += mLastLocation.distanceTo(location);
Log.e("distance", "onLocationChanged: " + distance);
//mLastLocation = location;
//newLocation = mLastLocation;
Log.e("location:", location + "");
//speed = (long) (distance / delta);
locationOld = location;
mLastLocation = location;
diaplayViews();
}
diaplayViews();
/*if (map != null) {
map.addMarker(new MarkerOptions()
.position(new LatLng(location.getLatitude(), location.getLongitude()))
.title("Hello world"));
}*/
}
private void createLocationRequest() {
mLocationRrequest = new LocationRequest();
mLocationRrequest.setInterval(UPDATE_INTERVAL);
mLocationRrequest.setFastestInterval(FASTEST_INTERVAL);
mLocationRrequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
mLocationRrequest.setSmallestDisplacement(DSIPLACEMENT_UPDATES);
}
private void methodToCalculateWaitingTime() {
if (handler1 != null) {
handler1.removeCallbacks(runable1);
}
Log.e("Here", "here1");
handler1 = new Handler(Looper.getMainLooper());
runable1 = new Runnable() {
public void run() {
Log.e("Here", "here2:" + mLastLocation.getSpeed());
if (mLastLocation != null) {
diaplayViews();
if ((mLastLocation.getSpeed() == 0.0)) {
increaseTime();
} else {
if (waitingTime <= 120) {
waiting2min = 0;
}
}
handler1.postDelayed(this, 10000);
} else {
if (ActivityCompat.checkSelfPermission(MyService.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(MyService.this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return;
}
locationOld = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
mLastLocation = locationOld;
}
}
};
handler1.postDelayed(runable1, 10000);
}
private void diaplayViews() {
float price = (float) (14 + distance * 0.5);
//textDistance.setText(waitingTime);a
}
private void increaseTime() {
waiting2min = waiting2min + 10;
if (waiting2min >= 120)
{
if (waiting2min == 120) {
waitingTime = waitingTime + 2 * 60;
} else {
waitingTime = waitingTime + 10;
}
totalWaiting = waitingTime / 60;
showNotification();
Log.e("waiting Time", "increaseTime: " + totalWaiting);
}
}
@Override
public void onDestroy() {
Toast.makeText(MyService.this, "distroyed", Toast.LENGTH_SHORT).show();
if (mGoogleApiClient.isConnected()) {
mGoogleApiClient.disconnect();
}
mGoogleApiClient.disconnect();
}
@Override
public void onConnected(Bundle bundle) {
Log.e("Connection_fusion", "connected");
startLocationUpdates();
}
@Override
public void onConnectionSuspended(int i) {
}
private void startLocationUpdates() {
Location location = plotTheInitialMarkerAndGetInitialGps();
if (location == null) {
plotTheInitialMarkerAndGetInitialGps();
} else {
mLastLocation = location;
methodToCalculateWaitingTime();
}
}
private Location plotTheInitialMarkerAndGetInitialGps() {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
return null;
}
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRrequest, this);
locationOld = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
if ((locationOld != null)) {
mLastLocation = locationOld;
timeOld = locationOld.getTime();
} else {
startLocationUpdates();
}
return mLastLocation;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
onStart(intent, startId);
Toast.makeText(MyService.this, "start command", Toast.LENGTH_SHORT).show();
sendUpdatesToUI = new Runnable() {
public void run() {
DisplayLoggingInfo();
handler.postDelayed(this, 10000); // 5 seconds
}
};
handler.postDelayed(sendUpdatesToUI, 10000); // 1 second
Log.i("LocalService", "Received start id " + startId + ": " + intent);
return START_NOT_STICKY;
}
@Override
public void onStart(Intent intent, int startId) {
sendUpdatesToUI = new Runnable() {
public void run() {
Log.e("sent", "sent");
DisplayLoggingInfo();
handler.postDelayed(this, 5000); // 5 seconds
}
};
handler.postDelayed(sendUpdatesToUI, 1000); // 1 second
Log.i("LocalService", "Received start id " + startId + ": " + intent);
super.onStart(intent, startId);
}
private void DisplayLoggingInfo() {
Log.d(TAG, "entered DisplayLoggingInfo");
intentforBroadcast.putExtra("distance", distance);
LocalBroadcastManager.getInstance(this).sendBroadcast(intentforBroadcast);
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public void onMapReady(GoogleMap googleMap) {
}
}
box-shadow: 0 5px 5px 0 #000;
It works on my side. Hope, it helps you.
There is another interesting issue with IE and Edge. Cookies that have names with more than 1 period seem to be silently dropped. So This works:
cookie_name_a=valuea
while this will get dropped
cookie.name.a=valuea
cleaned solution :
$.fn.donetyping = function(callback, delay){
delay || (delay = 1000);
var timeoutReference;
var doneTyping = function(elt){
if (!timeoutReference) return;
timeoutReference = null;
callback(elt);
};
this.each(function(){
var self = $(this);
self.on('keyup',function(){
if(timeoutReference) clearTimeout(timeoutReference);
timeoutReference = setTimeout(function(){
doneTyping(self);
}, delay);
}).on('blur',function(){
doneTyping(self);
});
});
return this;
};
TextMarks gives you access to its shared shortcode to send and receive text messages from your app via their API. Messages come from/to 41411 (instead of e.g. a random phone# and unlike e-mail gateways you have the full 160 chars to work with).
You can also tell people to text in your keyword(s) to 41411 to invoke various functionality in your app. There is a JAVA API client along with several other popular languages and very comprehensive documentation and technical support.
The 14 day free trial can be easily extended for developers who are still testing it out and building their apps.
Check it out here: TextMarks API Info
I used this for a reruning of a program. I don't know if it would help, but it is a simple if statement requiring only two different entry's. It worked in powershell for me.
$rerun = Read-Host "Rerun report (y/n)?"
if($rerun -eq "y") { Show-MemoryReport }
if($rerun -eq "n") { Exit }
Don't know if this helps, but i believe this would be along the lines of terminating a program after you have run it. However in this case, every defined input requires a listed and categorized output. You could also have the exit call up a new prompt line and terminate the program that way.
From the fine manual.
You must own the table to use ALTER TABLE.
Or be a database superuser.
ERROR: must be owner of relation contact
PostgreSQL error messages are usually spot on. This one is spot on.
Easy quick solution which worked for me. 1. Go to the root folder. Copy the default.aspx file. 2. Delete the original file. 3. Rename the copied file to default.aspx.
Its all set to experiment again. Not sure how sharepoint referencing these webparts in that page. But works :)
Under Windows 10 OS environment, the following method works for me:
https://github.com/tesseract-ocr/tesseract/wiki Download tesseract and install it. Windows version is available here: https://github.com/UB-Mannheim/tesseract/wiki
Find script file pytesseract.py from C:\Users\User\Anaconda3\Lib\site-packages\pytesseract and open it.
Change the following code from tesseract_cmd = 'tesseract'
to: tesseract_cmd = 'D:/Program Files (x86)/Tesseract-OCR/tesseract.exe'
You may also need add environment variable D:/Program Files (x86)/Tesseract-OCR/
Hope it works for you!
Try initializing with null value.
private java.util.Date date2 = null;
Also private java.util.Date date2 = "";
will not work as "" is a string.
You can't. Javascript runs client side, C# runs server side.
In fact, your server will run all the C# code, generating Javascript. The Javascript then, is run in the browser. As said in the comments, the compiler doesn't know Javascript.
To call the functionality on your server, you'll have to use techniques such as AJAX, as said in the other answers.
In addition to the excellent answer given by Orabîg:
I resolved this issue by removing the bind
section entirely and setting protected-mode
to no
.
#bind 127.0.0.1
protected-mode no
Never use this method on publicly exposed servers.
var example = $('#exampleTable').DataTable({
"columnDefs": [
{
"targets": [0],
"visible": false,
"searchable": false
}
]
});
Target attribute defines the position of the column.Visible attribute responsible for visibility of the column.Searchable attribute responsible for searching facility.If it set to false that column doesn't function with searching.
This worked for me: I needed to generate just three random alphanumeric characters for an ID, but it could work for any length up to 15 or so.
declare @DesiredLength as int = 3;
select substring(replace(newID(),'-',''),cast(RAND()*(31-@DesiredLength) as int),@DesiredLength);
You can use gdb for this like objdump.
This excerpt is taken from http://sources.redhat.com/gdb/current/onlinedocs/gdb_9.html#SEC64
Here is an example showing mixed source+assembly for Intel x86:
(gdb) disas /m main Dump of assembler code for function main: 5 { 0x08048330 : push %ebp 0x08048331 : mov %esp,%ebp 0x08048333 : sub $0x8,%esp 0x08048336 : and $0xfffffff0,%esp 0x08048339 : sub $0x10,%esp 6 printf ("Hello.\n"); 0x0804833c : movl $0x8048440,(%esp) 0x08048343 : call 0x8048284 7 return 0; 8 } 0x08048348 : mov $0x0,%eax 0x0804834d : leave 0x0804834e : ret End of assembler dump.
First treat the number like a string
number = 9876543210
number = str(number)
Then to get the first digit:
number[0]
The fourth digit:
number[3]
EDIT:
This will return the digit as a character, not as a number. To convert it back use:
int(number[0])
<?php
//
// A very simple PHP example that sends a HTTP POST to a remote site
//
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,"http://xxxxxxxx.xxx/xx/xx");
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS,
"dispnumber=567567567&extension=6");
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/x-www-form-urlencoded'));
// receive server response ...
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$server_output = curl_exec ($ch);
curl_close ($ch);
// further processing ....
if ($server_output == "OK") { ... } else { ... }
?>
I'd like to expand & clarify chaos's answer a bit.
If you surround your command with backticks, then you don't need to (explicitly) call system() at all. The backticks execute the command and return the output as a string. You can then assign the value to a variable like so:
output = `ls`
p output
or
printf output # escapes newline chars
I already had index.html in the WebContent folder but it was not showing up , finally i added the following piece of code in my projects web.xml and it started showing up
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
Update using the wonderful requests library. Note we are using the HEAD request, which should happen more quickly then a full GET or POST request.
import requests
try:
r = requests.head("https://stackoverflow.com")
print(r.status_code)
# prints the int of the status code. Find more at httpstatusrappers.com :)
except requests.ConnectionError:
print("failed to connect")
Private Sub CommandButton1_Click()
Dim Z As Long
Dim Cellidx As Range
Dim NextRow As Long
Dim Rng As Range
Dim SrcWks As Worksheet
Dim DataWks As Worksheet
Z = 1
Set SrcWks = Worksheets("Sheet1")
Set DataWks = Worksheets("Sheet2")
Set Rng = EntryWks.Range("B6:ad6")
NextRow = DataWks.UsedRange.Rows.Count
NextRow = IIf(NextRow = 1, 1, NextRow + 1)
For Each RA In Rng.Areas
For Each Cellidx In RA
Z = Z + 1
DataWks.Cells(NextRow, Z) = Cellidx
Next Cellidx
Next RA
End Sub
Alternatively
Worksheets("Sheet2").Range("P2").Value = Worksheets("Sheet1").Range("L10")
This is a CopynPaste - Method
Sub CopyDataToPlan()
Dim LDate As String
Dim LColumn As Integer
Dim LFound As Boolean
On Error GoTo Err_Execute
'Retrieve date value to search for
LDate = Sheets("Rolling Plan").Range("B4").Value
Sheets("Plan").Select
'Start at column B
LColumn = 2
LFound = False
While LFound = False
'Encountered blank cell in row 2, terminate search
If Len(Cells(2, LColumn)) = 0 Then
MsgBox "No matching date was found."
Exit Sub
'Found match in row 2
ElseIf Cells(2, LColumn) = LDate Then
'Select values to copy from "Rolling Plan" sheet
Sheets("Rolling Plan").Select
Range("B5:H6").Select
Selection.Copy
'Paste onto "Plan" sheet
Sheets("Plan").Select
Cells(3, LColumn).Select
Selection.PasteSpecial Paste:=xlValues, Operation:=xlNone, SkipBlanks:= _
False, Transpose:=False
LFound = True
MsgBox "The data has been successfully copied."
'Continue searching
Else
LColumn = LColumn + 1
End If
Wend
Exit Sub
Err_Execute:
MsgBox "An error occurred."
End Sub
And there might be some methods doing that in Excel.
To list files based on size in asending order.
find ./ -size +1000M -exec ls -tlrh {} \; |awk -F" " '{print $5,$9}' | sort -n\
you should just be able to call it by typing in the file name. You may have to call ./a.exe as the current directory is usually not on the path for security reasons.
You're comparing apples to oranges here:
webHttpBinding is the REST-style binding, where you basically just hit a URL and get back a truckload of XML or JSON from the web service
basicHttpBinding and wsHttpBinding are two SOAP-based bindings which is quite different from REST. SOAP has the advantage of having WSDL and XSD to describe the service, its methods, and the data being passed around in great detail (REST doesn't have anything like that - yet). On the other hand, you can't just browse to a wsHttpBinding endpoint with your browser and look at XML - you have to use a SOAP client, e.g. the WcfTestClient or your own app.
So your first decision must be: REST vs. SOAP (or you can expose both types of endpoints from your service - that's possible, too).
Then, between basicHttpBinding and wsHttpBinding, there differences are as follows:
basicHttpBinding is the very basic binding - SOAP 1.1, not much in terms of security, not much else in terms of features - but compatible to just about any SOAP client out there --> great for interoperability, weak on features and security
wsHttpBinding is the full-blown binding, which supports a ton of WS-* features and standards - it has lots more security features, you can use sessionful connections, you can use reliable messaging, you can use transactional control - just a lot more stuff, but wsHttpBinding is also a lot *heavier" and adds a lot of overhead to your messages as they travel across the network
For an in-depth comparison (including a table and code examples) between the two check out this codeproject article: Differences between BasicHttpBinding and WsHttpBinding
You have to catch the error and then check what type of error it is.
try {
var data = fs.readFileSync(...)
} catch (err) {
// If the type is not what you want, then just throw the error again.
if (err.code !== 'ENOENT') throw err;
// Handle a file-not-found error
}
Here's a generator that does what you requested. In this case, using rstrip is sufficient and slightly faster than strip.
lines = (line.rstrip('\n') for line in open(filename))
However, you'll most likely want to use this to get rid of trailing whitespaces too.
lines = (line.rstrip() for line in open(filename))
I don't know any native cmdlet in powershell but you can use com object instead:
$WshShell = New-Object -comObject WScript.Shell
$Shortcut = $WshShell.CreateShortcut("$Home\Desktop\ColorPix.lnk")
$Shortcut.TargetPath = "C:\Program Files (x86)\ColorPix\ColorPix.exe"
$Shortcut.Save()
you can create a powershell script save as set-shortcut.ps1 in your $pwd
param ( [string]$SourceExe, [string]$DestinationPath )
$WshShell = New-Object -comObject WScript.Shell
$Shortcut = $WshShell.CreateShortcut($DestinationPath)
$Shortcut.TargetPath = $SourceExe
$Shortcut.Save()
and call it like this
Set-ShortCut "C:\Program Files (x86)\ColorPix\ColorPix.exe" "$Home\Desktop\ColorPix.lnk"
If you want to pass arguments to the target exe, it can be done by:
#Set the additional parameters for the shortcut
$Shortcut.Arguments = "/argument=value"
before $Shortcut.Save().
For convenience, here is a modified version of set-shortcut.ps1. It accepts arguments as its second parameter.
param ( [string]$SourceExe, [string]$ArgumentsToSourceExe, [string]$DestinationPath )
$WshShell = New-Object -comObject WScript.Shell
$Shortcut = $WshShell.CreateShortcut($DestinationPath)
$Shortcut.TargetPath = $SourceExe
$Shortcut.Arguments = $ArgumentsToSourceExe
$Shortcut.Save()
The format is %lu
.
Please check about the various other datatypes and their usage in printf here
I had the same problem , what I did was I first pushed it by force by using this
git push --force
I did this after I commited the files and was getting an error as you got.It did commit all the files and it pushed them. Then the next time I was pushing to the github .I did what it asked me to and it was alright then. Hope this works for you too :)
In addition to others' answers :
static:: will be computed using runtime information.
That means you can't use static::
in a class property because properties values :
Must be able to be evaluated at compile time and must not depend on run-time information.
class Foo {
public $name = static::class;
}
$Foo = new Foo;
echo $Foo->name; // Fatal error
Using self::
class Foo {
public $name = self::class;
}
$Foo = new Foo;
echo $Foo->name; // Foo
Please note that the Fatal error comment in the code i made doesn't indicate where the error happened, the error happened earlier before the object was instantiated as @Grapestain mentioned in the comments
Just make sure that the controller name is the same as yours DeliveryController if you renamed it (it will not change automatically!). if you rename the project name too you should delete the reference to this project from the Bin folder. Don't forget to specify the method get or post.
A possible very simple fix that worked for me. After deleting any database references and connections you find in server/serverobject explorer, right click the App_Data folder (didn't show any objects within the application for me) and select open. Once open put all the database/etc. files in a backup folder or if you have the guts just delete them. Run your application and it should recreate everything from scratch.
player['score']
is your problem. player is apparently a list
which means that there is no 'score' element. Instead you would do something like:
name, score = player[0], player[1]
return name + ' ' + str(score)
Of course, you would have to know the list indices (those are the 0 and 1 in my example).
Something like player['score']
is allowed in python, but player
would have to be a dict
.
You can read more about both lists and dicts in the python documentation.
You can use a lookaround:
^(?=.*[A-Za-z0-9])[A-Za-z0-9 _]*$
It will check ahead that the string has a letter or number, if it does it will check that the rest of the chars meet your requirements. This can probably be improved upon, but it seems to work with my tests.
UPDATE:
Adding modifications suggested by Chris Lutz:
^(?=.*[^\W_])[\w ]*$/
For those who are newbie like me, Open IIS, expand your server name, choose sites, click on your website. On new install, it is Default web site. Click it. On the right side you have Default document option. Double click it. You will see default.htm, default.asp, index.htm etc.. to the extreme right click add. Enter the full name of your file(including extension) that you want to set it as default. click ok. Open cmd prompt as admin and reset iis. Remove all files from c:\inetpub\wwwroot folder like iisstart.html, index.html etc.
Note: This will automatically create web.config file in your c:\inetpub\wwwroot folder. I didnt have any web.config files in my inetpub or wwwroot folders. This automatically created one for me.
Next time when you enter http(s)://servername, it opens the default page you set.
You can also use LINQ to iterate over the array. or you can use the Find method which takes a delegate to search for it. However I think the find method is a bit more expensive then just looping through.
I still think using Join is simpler. Record the expected completion time (as Now+timeout), then, in a loop, do
if(!thread.Join(End-now))
throw new NotFinishedInTime();
strtotime($var);
Turns it into a time value
time() - strtotime($var);
Gives you the seconds since $var
if((time()-(60*60*24)) < strtotime($var))
Will check if $var
has been within the last day.
First, let's see why this is happening.
The reason is that, surprisingly, when a box has position: absolute
its containing box is the parent's padding box (that is, the box around its padding). This is surprising because usually (that is, when using static or relative positioning) the containing box is the parent's content box.
Here is the relevant part of the CSS specification:
In the case that the ancestor is an inline element, the containing block is the bounding box around the padding boxes of the first and the last inline boxes generated for that element.... Otherwise, the containing block is formed by the padding edge of the ancestor.
The simplest approach—as suggested in Winter's answer—is to use padding: inherit
on the absolutely positioned div
. It only works, though, if you don't want the absolutely positioned div
to have any additional padding of its own. I think the most general-purpose solutions (in that both elements can have their own independent padding) are:
Add an extra relatively positioned div
(with no padding) around the absolutely positioned div
. That new div
will respect the padding of its parent, and the absolutely positioned div
will then fill it.
The downside, of course, is that you're messing with the HTML simply for presentational purposes.
Repeat the padding (or add to it) on the absolutely positioned element.
The downside here is that you have to repeat the values in your CSS, which is brittle if you're writing the CSS directly. However, if you're using a pre-processing tool like SASS
or LESS
you can avoid that problem by using a variable. This is the method I personally use.
Assuming that your original dataset is similar to the one you created (i.e. with NA
as character
. You could specify na.strings
while reading the data using read.table
. But, I guess NAs would be detected automatically.
The price
column is factor
which needs to be converted to numeric
class. When you use as.numeric
, all the non-numeric elements (i.e. "NA"
, FALSE) gets coerced to NA
) with a warning.
library(dplyr)
df %>%
mutate(price=as.numeric(as.character(price))) %>%
group_by(company, year, product) %>%
summarise(total.count=n(),
count=sum(is.na(price)),
avg.price=mean(price,na.rm=TRUE),
max.price=max(price, na.rm=TRUE))
I am using the same dataset
(except the ...
row) that was showed.
df = tbl_df(data.frame(company=c("Acme", "Meca", "Emca", "Acme", "Meca","Emca"),
year=c("2011", "2010", "2009", "2011", "2010", "2013"), product=c("Wrench", "Hammer",
"Sonic Screwdriver", "Fairy Dust", "Kindness", "Helping Hand"), price=c("5.67",
"7.12", "12.99", "10.99", "NA",FALSE)))
in laravel, artisan is a file under root/protected page
for example,
c:\xampp\htdocs\my_project\protected\artisan
you can view the content of "artisan" file with any text editor, it's a php command syntax
so when we type
php artisan
we tell php to run php script in "artisan" file
for example:
php artisan change
will show the change of current laravel version
to see the other option, just type
php artisan
<Button
android:id="@+id/buttonVisaProgress"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="5dp"
android:background="@drawable/shape"
android:onClick="visaProgress"
android:drawableTop="@drawable/ic_1468863158_double_loop"
android:padding="10dp"
android:text="Visa Progress"
android:textColor="@android:color/white" />
shape.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<corners android:radius="14dp" />
<gradient
android:angle="45"
android:centerColor="#1FA8D1"
android:centerX="35%"
android:endColor="#060d96"
android:startColor="#0e7e1d"
android:type="linear" />
<padding
android:bottom="0dp"
android:left="0dp"
android:right="0dp"
android:top="0dp" />
<size
android:width="270dp"
android:height="60dp" />
<stroke
android:width="3dp"
android:color="#000000" />
As for me - I just restarted the computer.
Since it doesn't appear that anyone has mentioned it here yet, the new best way to manage HttpClient and HttpClientHandler in .NET Core 2.1 is using HttpClientFactory.
It solves most of the aforementioned issues and gotchas in a clean and easy-to-use way. From Steve Gordon's great blog post:
Add the following packages to your .Net Core (2.1.1 or later) project:
Microsoft.AspNetCore.All
Microsoft.Extensions.Http
Add this to Startup.cs:
services.AddHttpClient();
Inject and use:
[Route("api/[controller]")]
public class ValuesController : Controller
{
private readonly IHttpClientFactory _httpClientFactory;
public ValuesController(IHttpClientFactory httpClientFactory)
{
_httpClientFactory = httpClientFactory;
}
[HttpGet]
public async Task<ActionResult> Get()
{
var client = _httpClientFactory.CreateClient();
var result = await client.GetStringAsync("http://www.google.com");
return Ok(result);
}
}
Explore the series of posts in Steve's blog for lots more features.
You can text-align: center the body to center the container. Then text-align: left the container to get all the text, etc. to align left.
remove float left.
Edited: removed reference to align center on an image tag.
As I observed in my code. If once the value is fetched of body from Response, its become blank.
String str = response.body().string(); // {response:[]}
String str1 = response.body().string(); // BLANK
So I believe after fetching once the value from body, it become empty.
Suggestion : Store it in String, that can be used many time.
Maybe not as clean or efficient as the already posted solutions, but how about the .each() function? E.g:
var mvar = "";
$(".mbox").each(function() {
console.log($(this).html());
mvar += $(this).html();
});
console.log(mvar);
One thing to note is that not all libraries will use the same meaning for pi, of course, so it never hurts to know what you're using. For example, the symbolic math library Sympy's representation of pi is not the same as math and numpy:
import math
import numpy
import scipy
import sympy
print(math.pi == numpy.pi)
> True
print(math.pi == scipy.pi)
> True
print(math.pi == sympy.pi)
> False
Dont install pyOpenSSL as it shall soon be deprecated. Current best approach is-
import requests
requests.packages.urllib3.disable_warnings()
Multiple statements are to be separated by a new line:
If SkyIsBlue Then
StartEngines
Pollute
ElseIf SkyIsRed Then
StopAttack
Vent
ElseIf SkyIsYellow Then
If Sunset Then
Sleep
ElseIf Sunrise or IsMorning Then
Smoke
GetCoffee
Else
Error
End If
Else
Joke
Laugh
End If
Run your script with .
. myscript.sh
This will run the script in the current shell environment.
export
governs which variables will be available to new processes, so if you say
FOO=1
export BAR=2
./runScript.sh
then $BAR
will be available in the environment of runScript.sh
, but $FOO
will not.
final Calendar newCalendar = Calendar.getInstance();
final DatePickerDialog StartTime = new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
Calendar newDate = Calendar.getInstance();
newDate.set(year, monthOfYear, dayOfMonth);
activitydate.setText(dateFormatter.format(newDate.getTime()));
}
}, newCalendar.get(Calendar.YEAR), newCalendar.get(Calendar.MONTH), newCalendar.get(Calendar.DAY_OF_MONTH));
btn_checkin.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
StartTime.show():
});
First you need to set a reference (Menu: Tools->References) to the Microsoft Excel Object Library then you can access all Excel Objects.
After you added the Reference you have full access to all Excel Objects. You need to add Excel in front of everything for example:
Dim xlApp as Excel.Application
Let's say you added an Excel Workbook Object in your Form and named it xLObject.
Here is how you Access a Sheet of this Object and change a Range
Dim sheet As Excel.Worksheet
Set sheet = xlObject.Object.Sheets(1)
sheet.Range("A1") = "Hello World"
(I copied the above from my answer to this question)
Another way to use Excel in Access is to start Excel through a Access Module (the way shahkalpesh described it in his answer)
I installed Node.js on bluehost.com (a shared server) using:
wget <path to download file>
tar -xf <gzip file>
mv <gzip_file_dir> node
This will download the tar file, extract to a directory and then rename that directory to the name 'node' to make it easier to use.
then
./node/bin/npm install jt-js-sample
Returns:
npm WARN engine [email protected]: wanted: {"node":"0.10.x"} (current: {"node":"0.12.4","npm":"2.10.1"})
[email protected] node_modules/jt-js-sample
+-- [email protected] ([email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected], [email protected])
I can now use the commands:
# ~/node/bin/node -v
v0.12.4
# ~/node/bin/npm -v
2.10.1
For security reasons, I have renamed my node directory to something else.
In newer version of git (2.23+) you can use:
git switch -C master origin/master
-C
is same as --force-create
. Related Reference Docs
# mysqladmin -u root -p status
Output:
Enter password:
Uptime: 4 Threads: 1 Questions: 62 Slow queries: 0 Opens: 51 Flush tables: 1 Open tables: 45 Queries per second avg: 15.500
It means MySQL serer is running
If server is not running then it will dump error as follows
# mysqladmin -u root -p status
Output :
mysqladmin: connect to server at 'localhost' failed
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)'
Check that mysqld is running and that the socket: '/var/run/mysqld/mysqld.sock' exists!
So Under Debian Linux you can type following command
# /etc/init.d/mysql status
check this...
#include <stdio.h>
class Base {
public:
virtual void gogo(int a) { printf(" Base :: gogo (int) \n"); };
virtual void gogo1(int a) { printf(" Base :: gogo1 (int) \n"); };
void gogo2(int a) { printf(" Base :: gogo2 (int) \n"); };
void gogo3(int a) { printf(" Base :: gogo3 (int) \n"); };
};
class Derived : protected Base {
public:
virtual void gogo(int a) { printf(" Derived :: gogo (int) \n"); };
void gogo1(int a) { printf(" Derived :: gogo1 (int) \n"); };
virtual void gogo2(int a) { printf(" Derived :: gogo2 (int) \n"); };
void gogo3(int a) { printf(" Derived :: gogo3 (int) \n"); };
};
int main() {
std::cout << "Derived" << std::endl;
auto obj = new Derived ;
obj->gogo(7);
obj->gogo1(7);
obj->gogo2(7);
obj->gogo3(7);
std::cout << "Base" << std::endl;
auto base = (Base*)obj;
base->gogo(7);
base->gogo1(7);
base->gogo2(7);
base->gogo3(7);
std::string s;
std::cout << "press any key to exit" << std::endl;
std::cin >> s;
return 0;
}
output
Derived
Derived :: gogo (int)
Derived :: gogo1 (int)
Derived :: gogo2 (int)
Derived :: gogo3 (int)
Base
Derived :: gogo (int)
Derived :: gogo1 (int)
Base :: gogo2 (int)
Base :: gogo3 (int)
press any key to exit
the best way is using the base::function as say @sth
Here's a general solution:
def get_text_excluding_children(driver, element):
return driver.execute_script("""
return jQuery(arguments[0]).contents().filter(function() {
return this.nodeType == Node.TEXT_NODE;
}).text();
""", element)
The element passed to the function can be something obtained from the find_element...()
methods (i.e. it can be a WebElement
object).
Or if you don't have jQuery or don't want to use it you can replace the body of the function above above with this:
return self.driver.execute_script("""
var parent = arguments[0];
var child = parent.firstChild;
var ret = "";
while(child) {
if (child.nodeType === Node.TEXT_NODE)
ret += child.textContent;
child = child.nextSibling;
}
return ret;
""", element)
I'm actually using this code in a test suite.
print(df.to_csv(sep='\t', index=False))
Or possibly:
print(df.to_csv(columns=['A', 'B', 'C'], sep='\t', index=False))
Position:fixed
gives an absolute position regarding the BROWSER window. so of course it goes there.
While position:absolute
refers to the parent element, so if you place your <div>
button inside the <div>
of the container, it should position where you meant it to be.
Something like
EDIT: thanks to @Sotiris, who has a point, solution can be achieved using a position:fixed and a margin-left. Like this: http://jsfiddle.net/NeK4k/
Instead of gdb
, run gdbtui
. Or run gdb
with the -tui
switch. Or press C-x C-a after entering gdb
. Now you're in GDB's TUI mode.
Enter layout asm
to make the upper window display assembly -- this will automatically follow your instruction pointer, although you can also change frames or scroll around while debugging. Press C-x s to enter SingleKey mode, where run continue up down finish
etc. are abbreviated to a single key, allowing you to walk through your program very quickly.
+---------------------------------------------------------------------------+ B+>|0x402670 <main> push %r15 | |0x402672 <main+2> mov %edi,%r15d | |0x402675 <main+5> push %r14 | |0x402677 <main+7> push %r13 | |0x402679 <main+9> mov %rsi,%r13 | |0x40267c <main+12> push %r12 | |0x40267e <main+14> push %rbp | |0x40267f <main+15> push %rbx | |0x402680 <main+16> sub $0x438,%rsp | |0x402687 <main+23> mov (%rsi),%rdi | |0x40268a <main+26> movq $0x402a10,0x400(%rsp) | |0x402696 <main+38> movq $0x0,0x408(%rsp) | |0x4026a2 <main+50> movq $0x402510,0x410(%rsp) | +---------------------------------------------------------------------------+ child process 21518 In: main Line: ?? PC: 0x402670 (gdb) file /opt/j64-602/bin/jconsole Reading symbols from /opt/j64-602/bin/jconsole...done. (no debugging symbols found)...done. (gdb) layout asm (gdb) start (gdb)
Assuming you don't have extraneous whitespace:
with open('file') as f:
w, h = [int(x) for x in next(f).split()] # read first line
array = []
for line in f: # read rest of lines
array.append([int(x) for x in line.split()])
You could condense the last for loop into a nested list comprehension:
with open('file') as f:
w, h = [int(x) for x in next(f).split()]
array = [[int(x) for x in line.split()] for line in f]
git pull
= git fetch
+ git merge origin/branch
git pull
and git pull origin branch
only differ in that the latter will only "update" origin/branch and not all origin/* as git pull
does.
git pull origin/branch
will just not work because it's trying to do a git fetch origin/branch
which is invalid.
Question related: git fetch + git merge origin/master vs git pull origin/master
One of the principal issues with pushing to a GIT is that the material you push will appear as your material, and will block submissions from other people on a team. As a GIT repository administrator, you will have to manage the hooks to prevent Alice's push from blocking Bob from pushing. To do that, you will want to ensure that your developers all belong to a group, lets call it 'developers' and that the repository is owned by root:developers, and then add this to the hooks/post-update script:
sudo chown -R root:developers $GIT_DIR
sudo chmod -R g+w $GIT_DIR
That will make it so that team members are able to push to the repository without stepping on each other's toes.
That is not HTML, but PHP. It is called the HEREDOC string method, and is an alternative to using quotes for writing multiline strings.
The HTML in your example will be:
<tr>
<td>TEST</td>
</tr>
Read the PHP documentation that explains it.
You might need to change the line
@RequestMapping(value = "/add", method = RequestMethod.GET)
to
@RequestMapping(value = "/add", method = {RequestMethod.GET,RequestMethod.POST})
Use changelists. The advantage over specifying files is that you can visualize and confirm everything you wanted is actually included before you commit.
$ svn changelist fix-issue-237 foo.c
Path 'foo.c' is now a member of changelist 'fix-issue-237'.
That done, svn now keeps things separate for you. This helps when you're juggling multiple changes
$ svn status
A bar.c
A baz.c
--- Changelist 'fix-issue-237':
A foo.c
Finally, tell it to commit what you wanted changed.
$ svn commit --changelist fix-issue-237 -m "Issue 237"
Installing XCode requires:
To install g++ *WITHOUT* having to download the MASSIVE 4.7G xCode install, try this package:
https://github.com/kennethreitz/osx-gcc-installer
The DMG files linked on that page are ~270M and much quicker to install. This was perfect for me, getting homebrew up and running with a minimum of hassle.
The github project itself is basically a script that repackages just the critical chunks of xCode for distribution. In order to run that script and build the DMG files, you'd need to already have an XCode install, which would kind of defeat the point, so the pre-built DMG files are hosted on the project page.
the Conda Package Manager is almost ready for beta testing, but it will not be fully integrated until the release of Spyder 2.4 (https://github.com/spyder-ide/spyder/wiki/Roadmap). As soon as we have it ready for testing we will post something on the mailing list (https://groups.google.com/forum/#!forum/spyderlib). Be sure to subscribe
Cheers!
Unfortunately, the offered solution doesn't work in Safari 10+, since Apple has decided to ignore user-scalable=no
. This thread has more details and some JS hacks: disable viewport zooming iOS 10+ safari?
I dont think there is any use for "pure" binary trees. (except for educational purposes) Balanced binary trees, such as Red-Black trees or AVL trees are much more useful, because they guarantee O(logn) operations. Normal binary trees may end up being a list (or almost list) and are not really useful in applications using much data.
Balanced trees are often used for implementing maps or sets. They can also be used for sorting in O(nlogn), even tho there exist better ways to do it.
Also for searching/inserting/deleting Hash tables can be used, which usually have better performance than binary search trees (balanced or not).
An application where (balanced) binary search trees would be useful would be if searching/inserting/deleting and sorting would be needed. Sort could be in-place (almost, ignoring the stack space needed for the recursion), given a ready build balanced tree. It still would be O(nlogn) but with a smaller constant factor and no extra space needed (except for the new array, assuming the data has to be put into an array). Hash tables on the other hand can not be sorted (at least not directly).
Maybe they are also useful in some sophisticated algorithms for doing something, but tbh nothing comes to my mind. If i find more i will edit my post.
Other trees like f.e. B+trees are widely used in databases
In terms of speed: #1 and #4, but not by much in most instances.
You could write a benchmark to confirm, but I suspect you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying of the array elements occurs. ($_
is aliased to the element in #1, but #2 and #3 actually copy the scalars from the array.)
#5 might be similar.
In terms memory usage: They're all the same except for #5.
for (@a)
is special-cased to avoid flattening the array. The loop iterates over the indexes of the array.
In terms of readability: #1.
In terms of flexibility: #1/#4 and #5.
#2 does not support elements that are false. #2 and #3 are destructive.
Here's what we do:
Create a new connection, set the name, IP address and the appropriate port:
Set up authentication, if required
Optionally set up other available settings for SSL, SSH, etc.
Save and connect
SELECT * FROM Table1
WHERE MAKE+MODEL+[Serial Number] not in
(select make+model+[serial number] from Table2
WHERE make+model+[serial number] IS NOT NULL)
That worked for me, where make+model+[serial number]
was one field name
Next to being in the wrong directory I just tripped about another variant:
I had a File.open(my_file).each {|line| puts line}
exploding but there was something by that name in the directory I was working in (ls in the command line showed the name). I checked with a File.exists?(my_file)
which strangely returned false
. Explanation: my_file
was a symlink which target didn't exist anymore! Since File.exists?
will follow a symlink it will say false
though the link is still there.
There is a simple way.
You create an iframe which have for source something like "http://your-domain.com/index.php?url=http://the-site-you-want-to-get.com/unicorn
Then, you just get this url with $_GET
and display the contents with file_get_contents($_GET['url']);
You will obtain an iframe which has a domain same than yours, then you will be able to use the $("iframe").contents().find("body")
to manipulate the content.
As mentioned in several answers already that have been already given, you can use ToShorDateString()
:
DateTime.Now.ToShortDateString();
However, you may be a bit blocked if you also want to use the culture as a parameter. In this case you can use the ToString()
method with the "d"
format:
DateTime.Now.ToString("d", CultureInfo.GetCultureInfo("en-US"))
The below code worked for me.
import pandas
df = pandas.read_csv('somefile.txt')
df = df.fillna(0)
function strip_html_tags(str)
{
if ((str===null) || (str===''))
return false;
else
str = str.toString();
return str.replace(/<[^>]*>/g, '');
}
margin-left: auto works well. But clean flex box solution would be space-between in the main class. Space between works well if there is two or more elements. I have added a solution for single element as well.
.main { display: flex; justify-content: space-between; }
.a, .b, .c { background: #efefef; border: 1px solid #999; padding: 0.25rem; margin: 0.25rem;}
.b { flex: 1; text-align: center; }
.c-wrapper {
display: flex;
flex: 1;
justify-content: flex-end;
}
.c-wrapper2 {
display: flex;
flex: 1;
flex-flow: row-reverse;
}
_x000D_
<div class="main">
<div class="a"><a href="#">Home</a></div>
<div class="b"><a href="#">Some title centered</a></div>
<div class="c"><a href="#">Contact</a></div>
</div>
<div class="main">
<div class="a"><a href="#">Home</a></div>
<div class="c"><a href="#">Contact</a></div>
</div>
<div class="main">
<div class="c-wrapper">
<a class="c" href="#">Contact</a>
<a class="c" href="#">Contact2</a>
</div>
</div>
<div class="main">
<div class="c-wrapper2">
<span class="c">Contact</span>
<span class="c">Contact2</span>
</div>
</div>
_x000D_
They need to be percent-encoded:
> encodeURIComponent('&')
"%26"
So in your case, the URL would look like:
http://www.mysite.com?candy_name=M%26M
I too was getting this error. (for which I googled and I was directed to this page)
Problem: I was calling a static method defined in the class of a project A from a class defined in another project B. I was getting the following error:
error: cannot find symbol
Solution: I resolved this by first building the project where the method is defined then the project where the method was being called from.
use this one:
DecimalFormat form = new DecimalFormat("0.00");
etToll.setText(form.format(tvTotalAmount) );
Note: Data must be in decimal format (tvTotalAmount)
you need to forward declare the name of the class if you don't want a header:
class ClassTwo;
Important: This only works in some cases, see Als's answer for more information..
Almost all answers assume the ID column is ordered (and perhaps auto incremented). There are situations, however, when the ID column is not ordered, hence the ORDER BY statement makes no sense.
The last inserted ID might not always be the highest ID, it is just the last (unique) entry.
One possible solution for such a situation is to create a row id on the fly:
SET @r = 0;
SELECT * FROM (SELECT *, (@r := @r + 1) AS r_id FROM uat3187) AS tmp
ORDER BY r_id DESC LIMIT 1;
Here a more mathematical way of seeing it, though not really complicated. IMO much clearer as informal ones:
The question is, how many times can you divide N by 2 until you have 1? This is essentially saying, do a binary search (half the elements) until you found it. In a formula this would be this:
1 = N / 2x
multiply by 2x:
2x = N
now do the log2:
log2(2x) = log2 N
x * log2(2) = log2 N
x * 1 = log2 N
this means you can divide log N times until you have everything divided. Which means you have to divide log N ("do the binary search step") until you found your element.
Crazy. I know.
Tried all options here. Restarting, cleaning, manually checking in generated DLLs (this is invaluable to understanding if it's actually yourself that messed up).
I got it to work by setting the Verbosity of MSBuild to "Detailed" in Options.
A short but may be less readable version of one of the previous answers.
<script type="text/javascript">
$(document).ready(DOM_Load);
function DOM_Load (e) {
$("#datefield").on("click", dateOfBirth_Click);
}
function dateOfBirth_Click(e) {
let today = new Date();
$("#datefield").prop("max", `${today.getUTCFullYear()}-${(today.getUTCMonth() + 1).toString().padStart(2, "0")}-${today.getUTCDate().toString().padStart(2, "0")}`);
}
</script>
this works nice.!
If ActiveSheet.AutoFilterMode Then Cells.AutoFilter
How to root android emulator (tested on Android 7.1.1/ Nougat)
Requirements:
Recovery flashable.zip (contains su binary) (Here is alternative backup link provided by XDA user Ibuprophen for flashable zips if the main link is not working: Flashable zip releases)
Instructions
Install the SuperSu.apk
Install the SuperSu app firstly, just do drag and drop (if running latest emulator version or sideload through adb i.e adb -e install supersu.apk
)
After installing it, when you run it shows a screen as shown below indicating “There is no SU binary installed..”. This error just confirms the device is not yet rooted.
Make emulator’ system partition writable
As it suggests, we need to give the emulator permission to write system files.
Type the following code to accomplish this: emulator -avd {emulator_name} -writable-system
If you have more than one AVD, you can get a list of avds by using the command: emulator -list-avds
Note: Navigate to the tools folder where Android SDK is installed and open command prompt there by pressing shift and right clicking.
Pushing su binary in system directory
Important! Only use the su binary that matches your avd architecture e.g x86, arm etc.., and note the path where you extracted these binaries.
adb root
adb remount
Now its time to push the su binary:
This is the code I successfully used: adb -e push C:\Users\User1\Desktop\rootemu\x86\su.pie /system/bin/su
(nevermind about my specific location of su binary, any location is okay as long there is no white space)
note: To figure out bin
or xbin
do in console before: > adb shell
, > ls /system/xbin/su
If this fails try this pushing to this directory instead /system/xbin/su
. Also for emulators running android 5.1 and below use the su
and not su.pie
Change permissions of the su binary
adb -e shell
su root
cd /system/bin
chmod 06755 su
Important!! Take note of su binary path (mine is /system/bin)
install
directive on su binary and set a daemon
Type the codes:
su --install
and for setting up daemon:
su --daemon&
Important!! Take note of spacing
Setting SELinux to Permissive(i.e turning off SE Linux)
setenforce 0
Open SuperSU app and it may ask to update binaries, you can use Normal method.
Note: If you're experiencing bootloops, rather don't update the binaries, just use it as it is.
That’s pretty much it!!
Open any application requiring SU permissions just to double check and indeed SuperSU ask if you wish to grant it su permissions.
To have the root persist update su binary (using Normal method), then copy system.img from temp directory (Users\AppData\Local\Temp\Android Emulator
the file is usually randomly named e.g 1359g.tmp
with a large size) and replace default system.img
.
Update:
I have noted is is easier to obtain a temporary system image in Linux, than Windows. You can try using snapshot image.
With the emergence of emulator 27.3.x
it now makes preserving root much easier through snapshot feature (if copying the system.img
method isn't working):
Ideally it is more like hibernarig the virtual device with config intact, hence everything is preserved.
Snapshots
You can now save multiple AVD snapshots for a given device configuration and choose which of the saved snapshots to load when you start the emulator. Starting a virtual device by loading a snapshot is much like waking a physical from a sleep state, as opposed to booting it from a powered-off state.
This implies the only requirement to start the emulator is adding the -writable-system
parameter to the normal emulator -avd [avdname]
command to start the emulator. (Running the emulator just with emulator -avd [avdname]
doesn't launch the rooted version/copy or may lead to some error)
Tested on API level 22
Also for bootloop issues see the other post: Android Emulator: How to avoid boot loop after rooting? and updates thereof.
Remarks
Most content in reference was for older android versions and hence the reason for different commands and paths which I modified.
Acknowledgements;
The second question is actually easier to answer. Look at the stringWithContentsOfURL:encoding:error:
method of NSString - it lets you pass in a URL as an instance of NSURL (which can easily be instantiated from NSString) and returns a string with the complete contents of the page at that URL. For example:
NSString *googleString = @"http://www.google.com";
NSURL *googleURL = [NSURL URLWithString:googleString];
NSError *error;
NSString *googlePage = [NSString stringWithContentsOfURL:googleURL
encoding:NSASCIIStringEncoding
error:&error];
After running this code, googlePage
will contain the HTML for www.google.com, and error
will contain any errors encountered in the fetch. (You should check the contents of error
after the fetch.)
Going the other way (from a UIWebView) is a bit trickier, but is basically the same concept. You'll have to pull the request from the view, then do the fetch as before:
NSURL *requestURL = [[yourWebView request] URL];
NSError *error;
NSString *page = [NSString stringWithContentsOfURL:requestURL
encoding:NSASCIIStringEncoding
error:&error];
EDIT: Both these methods take a performance hit, however, since they do the request twice. You can get around this by grabbing the content from a currently-loaded UIWebView using its stringByEvaluatingJavascriptFromString:
method, as such:
NSString *html = [yourWebView stringByEvaluatingJavaScriptFromString:
@"document.body.innerHTML"];
This will grab the current HTML contents of the view using the Document Object Model, parse the JavaScript, then give it to you as an NSString* of HTML.
Another way is to do your request programmatically first, then load the UIWebView from what you requested. Let's say you take the second example above, where you have NSString *page
as the result of a call to stringWithContentsOfURL:encoding:error:
. You can then push that string into the web view using loadHTMLString:baseURL:
, assuming you also held on to the NSURL you requested:
[yourWebView loadHTMLString:page baseURL:requestURL];
I'm not sure, however, if this will run JavaScript found in the page you load (the method name, loadHTMLString
, is somewhat ambiguous, and the docs don't say much about it).
For more info:
I faced the same issue and got it working.
I think it is because when you import a project, build target is not set in the project properties which then default to the value used in manifest file. Most likely, you already have installed a later android API with your SDK.
The solution is to enable build target toward your installed API level (but keep the minimum api support as specified in the manifest file). TO do this, in project properties, go to android, and from "Project Build Target", pick a target name.
You can use concat:
In [11]: pd.concat([df1['c'], df2['c']], axis=1, keys=['df1', 'df2'])
Out[11]:
df1 df2
2014-01-01 NaN -0.978535
2014-01-02 -0.106510 -0.519239
2014-01-03 -0.846100 -0.313153
2014-01-04 -0.014253 -1.040702
2014-01-05 0.315156 -0.329967
2014-01-06 -0.510577 -0.940901
2014-01-07 NaN -0.024608
2014-01-08 NaN -1.791899
[8 rows x 2 columns]
The axis argument determines the way the DataFrames are stacked:
df1 = pd.DataFrame([1, 2, 3])
df2 = pd.DataFrame(['a', 'b', 'c'])
pd.concat([df1, df2], axis=0)
0
0 1
1 2
2 3
0 a
1 b
2 c
pd.concat([df1, df2], axis=1)
0 0
0 1 a
1 2 b
2 3 c
git stash
is your friend.
If you have not made the commit yet, just run git stash
. This will save away all of your changes.
Switch to the branch you want the changes on and run git stash pop
.
There are lots of uses for git stash. This is certainly one of the more useful reasons.
An example:
# work on some code
git stash
git checkout correct-branch
git stash pop
Existing answers paraphrase the main point quite well.
The main point is that ECMAScript is the bare abstract language, without any domain specific extensions, it's useless in itself. The specification defines only the language and the core objects of it.
While JavaScript and ActionScript and other dialects add the domain specific library to it, so you can use it for something meaningful.
There are many ECMAScript engines, some of them are open source, others are proprietary. You can link them into your program then add your native functions to the global object so your program becomes scriptable. Although most often they are used in browsers.
"There are no safe means of assigning multiple recipients to a single mailto: link via HTML. There are safe, non-HTML, ways of assigning multiple recipients from a mailto: link."
http://www.sightspecific.com/~mosh/www_faq/multrec.html
For a quick fix to your problem, change your ;
to a comma ,
and eliminate the spaces between email addresses
<a href='mailto:[email protected],[email protected]'>Email Us</a>
Another option:
def map = ['a':1, 'b':2, 'c':3]
map.each{
println it.key +" "+ it.value
}
Parse a filename from the fully qualified path name (e.g., c:\temp\my.bat) to any component (e.g., File.ext).
Single line of code:
For %%A in ("C:\Folder1\Folder2\File.ext") do (echo %%~fA)
You can change out "C:\Folder1\Folder2\File.ext" for any full path and change "%%~fA" for any of the other options you will find by running "for /?" at the command prompt.
Elaborated Code
set "filename=C:\Folder1\Folder2\File.ext"
For %%A in ("%filename%") do (
echo full path: %%~fA
echo drive: %%~dA
echo path: %%~pA
echo file name only: %%~nA
echo extension only: %%~xA
echo expanded path with short names: %%~sA
echo attributes: %%~aA
echo date and time: %%~tA
echo size: %%~zA
echo drive + path: %%~dpA
echo name.ext: %%~nxA
echo full path + short name: %%~fsA)
Standalone Batch Script
Save as C:\cmd\ParseFn.cmd.
Add C:\cmd to your PATH environment variable and use it to store all of you reusable batch scripts.
@echo off
@echo ::___________________________________________________________________::
@echo :: ::
@echo :: ParseFn ::
@echo :: ::
@echo :: Chris Advena ::
@echo ::___________________________________________________________________::
@echo.
::
:: Process arguements
::
if "%~1%"=="/?" goto help
if "%~1%"=="" goto help
if "%~2%"=="/?" goto help
if "%~2%"=="" (
echo !!! Error: ParseFn requires two inputs. !!!
goto help)
set in=%~1%
set out=%~2%
:: echo "%in:~3,1%" "%in:~0,1%"
if "%in:~3,1%"=="" (
if "%in:~0,1%"=="/" (
set in=%~2%
set out=%~1%)
)
::
:: Parse filename
::
set "ret="
For %%A in ("%in%") do (
if "%out%"=="/f" (set ret=%%~fA)
if "%out%"=="/d" (set ret=%%~dA)
if "%out%"=="/p" (set ret=%%~pA)
if "%out%"=="/n" (set ret=%%~nA)
if "%out%"=="/x" (set ret=%%~xA)
if "%out%"=="/s" (set ret=%%~sA)
if "%out%"=="/a" (set ret=%%~aA)
if "%out%"=="/t" (set ret=%%~tA)
if "%out%"=="/z" (set ret=%%~zA)
if "%out%"=="/dp" (set ret=%%~dpA)
if "%out%"=="/nx" (set ret=%%~nxA)
if "%out%"=="/fs" (set ret=%%~fsA)
)
echo ParseFn result: %ret%
echo.
goto end
:help
@echo off
:: @echo ::___________________________________________________________________::
:: @echo :: ::
:: @echo :: ParseFn Help ::
:: @echo :: ::
:: @echo :: Chris Advena ::
:: @echo ::___________________________________________________________________::
@echo.
@echo ParseFn parses a fully qualified path name (e.g., c:\temp\my.bat)
@echo into the requested component, such as drive, path, filename,
@echo extenstion, etc.
@echo.
@echo Syntax: /switch filename
@echo where,
@echo filename is a fully qualified path name including drive,
@echo folder(s), file name, and extension
@echo.
@echo Select only one switch:
@echo /f - fully qualified path name
@echo /d - drive letter only
@echo /p - path only
@echo /n - file name only
@echo /x - extension only
@echo /s - expanded path contains short names only
@echo /a - attributes of file
@echo /t - date/time of file
@echo /z - size of file
@echo /dp - drive + path
@echo /nx - file name + extension
@echo /fs - full path + short name
@echo.
:end
:: @echo ::___________________________________________________________________::
:: @echo :: ::
:: @echo :: ParseFn finished ::
:: @echo ::___________________________________________________________________::
:: @echo.
Use Dollar which is Lo-Dash or Underscore.js for Swift:
import Dollar
let found = $.find(array) { $0.name == "Foo" }
The code is correct. The problem must lie somewhere else. Try the minimalistic example from the std::getline documentation.
main ()
{
std::string name;
std::cout << "Please, enter your full name: ";
std::getline (std::cin,name);
std::cout << "Hello, " << name << "!\n";
return 0;
}
I decided to add this as a separate answer as I am not positive it is tested enough. This is a re-implementation of the FullOuterJoin
method using essentially a simplified, customized version of LINQKit
Invoke
/Expand
for Expression
so that it should work the Entity Framework. There's not much explanation as it is pretty much the same as my previous answer.
public static class Ext {
private static Expression<Func<TP, TC, TResult>> CastSMBody<TP, TC, TResult>(LambdaExpression ex, TP unusedP, TC unusedC, TResult unusedRes) => (Expression<Func<TP, TC, TResult>>)ex;
public static IQueryable<TResult> LeftOuterJoin<TLeft, TRight, TKey, TResult>(
this IQueryable<TLeft> leftItems,
IQueryable<TRight> rightItems,
Expression<Func<TLeft, TKey>> leftKeySelector,
Expression<Func<TRight, TKey>> rightKeySelector,
Expression<Func<TLeft, TRight, TResult>> resultSelector) {
// (lrg,r) => resultSelector(lrg.left, r)
var sampleAnonLR = new { left = default(TLeft), rightg = default(IEnumerable<TRight>) };
var parmP = Expression.Parameter(sampleAnonLR.GetType(), "lrg");
var parmC = Expression.Parameter(typeof(TRight), "r");
var argLeft = Expression.PropertyOrField(parmP, "left");
var newleftrs = CastSMBody(Expression.Lambda(resultSelector.Apply(argLeft, parmC), parmP, parmC), sampleAnonLR, default(TRight), default(TResult));
return leftItems.GroupJoin(rightItems, leftKeySelector, rightKeySelector, (left, rightg) => new { left, rightg }).SelectMany(r => r.rightg.DefaultIfEmpty(), newleftrs);
}
public static IQueryable<TResult> RightOuterJoin<TLeft, TRight, TKey, TResult>(
this IQueryable<TLeft> leftItems,
IQueryable<TRight> rightItems,
Expression<Func<TLeft, TKey>> leftKeySelector,
Expression<Func<TRight, TKey>> rightKeySelector,
Expression<Func<TLeft, TRight, TResult>> resultSelector) {
// (lgr,l) => resultSelector(l, lgr.right)
var sampleAnonLR = new { leftg = default(IEnumerable<TLeft>), right = default(TRight) };
var parmP = Expression.Parameter(sampleAnonLR.GetType(), "lgr");
var parmC = Expression.Parameter(typeof(TLeft), "l");
var argRight = Expression.PropertyOrField(parmP, "right");
var newrightrs = CastSMBody(Expression.Lambda(resultSelector.Apply(parmC, argRight), parmP, parmC), sampleAnonLR, default(TLeft), default(TResult));
return rightItems.GroupJoin(leftItems, rightKeySelector, leftKeySelector, (right, leftg) => new { leftg, right })
.SelectMany(l => l.leftg.DefaultIfEmpty(), newrightrs);
}
private static Expression<Func<TParm, TResult>> CastSBody<TParm, TResult>(LambdaExpression ex, TParm unusedP, TResult unusedRes) => (Expression<Func<TParm, TResult>>)ex;
public static IQueryable<TResult> RightAntiSemiJoin<TLeft, TRight, TKey, TResult>(
this IQueryable<TLeft> leftItems,
IQueryable<TRight> rightItems,
Expression<Func<TLeft, TKey>> leftKeySelector,
Expression<Func<TRight, TKey>> rightKeySelector,
Expression<Func<TLeft, TRight, TResult>> resultSelector) where TLeft : class where TRight : class where TResult : class {
// newrightrs = lgr => resultSelector(default(TLeft), lgr.right)
var sampleAnonLgR = new { leftg = (IEnumerable<TLeft>)null, right = default(TRight) };
var parmLgR = Expression.Parameter(sampleAnonLgR.GetType(), "lgr");
var argLeft = Expression.Constant(default(TLeft), typeof(TLeft));
var argRight = Expression.PropertyOrField(parmLgR, "right");
var newrightrs = CastSBody(Expression.Lambda(resultSelector.Apply(argLeft, argRight), parmLgR), sampleAnonLgR, default(TResult));
return rightItems.GroupJoin(leftItems, rightKeySelector, leftKeySelector, (right, leftg) => new { leftg, right }).Where(lgr => !lgr.leftg.Any()).Select(newrightrs);
}
public static IQueryable<TResult> FullOuterJoin<TLeft, TRight, TKey, TResult>(
this IQueryable<TLeft> leftItems,
IQueryable<TRight> rightItems,
Expression<Func<TLeft, TKey>> leftKeySelector,
Expression<Func<TRight, TKey>> rightKeySelector,
Expression<Func<TLeft, TRight, TResult>> resultSelector) where TLeft : class where TRight : class where TResult : class {
return leftItems.LeftOuterJoin(rightItems, leftKeySelector, rightKeySelector, resultSelector).Concat(leftItems.RightAntiSemiJoin(rightItems, leftKeySelector, rightKeySelector, resultSelector));
}
public static Expression Apply(this LambdaExpression e, params Expression[] args) {
var b = e.Body;
foreach (var pa in e.Parameters.Cast<ParameterExpression>().Zip(args, (p, a) => (p, a))) {
b = b.Replace(pa.p, pa.a);
}
return b.PropagateNull();
}
public static Expression Replace(this Expression orig, Expression from, Expression to) => new ReplaceVisitor(from, to).Visit(orig);
public class ReplaceVisitor : System.Linq.Expressions.ExpressionVisitor {
public readonly Expression from;
public readonly Expression to;
public ReplaceVisitor(Expression _from, Expression _to) {
from = _from;
to = _to;
}
public override Expression Visit(Expression node) => node == from ? to : base.Visit(node);
}
public static Expression PropagateNull(this Expression orig) => new NullVisitor().Visit(orig);
public class NullVisitor : System.Linq.Expressions.ExpressionVisitor {
public override Expression Visit(Expression node) {
if (node is MemberExpression nme && nme.Expression is ConstantExpression nce && nce.Value == null)
return Expression.Constant(null, nce.Type.GetMember(nme.Member.Name).Single().GetMemberType());
else
return base.Visit(node);
}
}
public static Type GetMemberType(this MemberInfo member) {
switch (member) {
case FieldInfo mfi:
return mfi.FieldType;
case PropertyInfo mpi:
return mpi.PropertyType;
case EventInfo mei:
return mei.EventHandlerType;
default:
throw new ArgumentException("MemberInfo must be if type FieldInfo, PropertyInfo or EventInfo", nameof(member));
}
}
}
We have improved our answer with detail explanation.Now it's more easy to understand about extension method
Extension method: It is a mechanism through which we can extend the behavior of existing class without using the sub classing or modifying or recompiling the original class or struct.
We can extend our custom classes ,.net framework classes etc.
Extension method is actually a special kind of static method that is defined in the static class.
As DateTime
class is already taken above and hence we have not taken this class for the explanation.
Below is the example
//This is a existing Calculator class which have only one method(Add)
public class Calculator
{
public double Add(double num1, double num2)
{
return num1 + num2;
}
}
// Below is the extension class which have one extension method.
public static class Extension
{
// It is extension method and it's first parameter is a calculator class.It's behavior is going to extend.
public static double Division(this Calculator cal, double num1,double num2){
return num1 / num2;
}
}
// We have tested the extension method below.
class Program
{
static void Main(string[] args)
{
Calculator cal = new Calculator();
double add=cal.Add(10, 10);
// It is a extension method in Calculator class.
double add=cal.Division(100, 10)
}
}
All XAMPP packages come with Multibyte String (php_mbstring.dll) extension installed.
If you have accidentally removed DLL file from php/ext
folder, just add it back (get the copy from XAMPP zip archive - its downloadable).
If you have deleted the accompanying INI configuration line from php.ini
file, add it back as well:
extension=php_mbstring.dll
Also, ensure to restart your webserver (Apache) using XAMPP control panel.
Additional Info on Enabling PHP Extensions
/XAMPP/php/ext
directory)extension_dir = "ext"
)Because line magics are only supported by the IPython command line not by Python cl, use: 'exec(%matplotlib inline)'
instead of %matplotlib inline
Since this is a popular question, I would like to add that in Elasticsearch version 2 things changed a bit.
Instead of filtered
query, one should use bool
query in the top level.
If you don't care about the score of must
parts, then put those parts into filter
key. No scoring means faster search. Also, Elasticsearch will automatically figure out, whether to cache them, etc. must_not
is equally valid for caching.
Reference: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html
Also, mind that "gte": "now"
cannot be cached, because of millisecond granularity. Use two ranges in a must
clause: one with now/1h
and another with now
so that the first can be cached for a while and the second for precise filtering accelerated on a smaller result set.
To just rename the project:
To change the package name:
The easiest and fastest solution is here: https://stackoverflow.com/a/35057550/4908798
In my case, the error was in using angular2-notifications 0.9.8
instead of 0.9.7
You want to do the check for undefined
first. If you do it the other way round, it will generate an error if the array is undefined.
if (array === undefined || array.length == 0) {
// array empty or does not exist
}
This answer is getting a fair amount of attention, so I'd like to point out that my original answer, more than anything else, addressed the wrong order of the conditions being evaluated in the question. In this sense, it fails to address several scenarios, such as null
values, other types of objects with a length
property, etc. It is also not very idiomatic JavaScript.
The foolproof approach
Taking some inspiration from the comments, below is what I currently consider to be the foolproof way to check whether an array is empty or does not exist. It also takes into account that the variable might not refer to an array, but to some other type of object with a length
property.
if (!Array.isArray(array) || !array.length) {
// array does not exist, is not an array, or is empty
// ? do not attempt to process array
}
To break it down:
Array.isArray()
, unsurprisingly, checks whether its argument is an array. This weeds out values like null
, undefined
and anything else that is not an array.
Note that this will also eliminate array-like objects, such as the arguments
object and DOM NodeList
objects. Depending on your situation, this might not be the behavior you're after.
The array.length
condition checks whether the variable's length
property evaluates to a truthy value. Because the previous condition already established that we are indeed dealing with an array, more strict comparisons like array.length != 0
or array.length !== 0
are not required here.
The pragmatic approach
In a lot of cases, the above might seem like overkill. Maybe you're using a higher order language like TypeScript that does most of the type-checking for you at compile-time, or you really don't care whether the object is actually an array, or just array-like.
In those cases, I tend to go for the following, more idiomatic JavaScript:
if (!array || !array.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or, more frequently, its inverse:
if (array && array.length) {
// array and array.length are truthy
// ? probably OK to process array
}
With the introduction of the optional chaining operator (Elvis operator) in ECMAScript 2020, this can be shortened even further:
if (!array?.length) {
// array or array.length are falsy
// ? do not attempt to process array
}
Or the opposite:
if (array?.length) {
// array and array.length are truthy
// ? probably OK to process array
}
I have found that so many interviews are asking for this so I implemented a really quite simple and understandable solution. First I generate all the possible combinations, and from there, you can do whatever you want. Check this out:
public static void main(String[] args) {
int[] numbers = new int[]{1, 2, 3, 4, 5};
List<int[]> allPossibleCombinatiosForNumbers = new ArrayList<>();
for (int i = 2; i < numbers.length; i++) {
allPossibleCombinatiosForNumbers.addAll(getCombinationsOfNElements(numbers, i));
}
for (int[] combination : allPossibleCombinatiosForNumbers) {
printArray(combination);
printArrayIfNumbersSumExpectedValue(combination, 6);
}
}
private static List<int[]> getCombinationsOfNElements(int[] numbers, int n) {
int elementsKnown = n - 1;
List<int[]> allCombinationsOfNElements = new ArrayList<>();
for (int i = 0; i < numbers.length - elementsKnown; i++) {
int[] combination = new int[n];
for (int j = 0; j < n; j++) {
combination[j] = numbers[i + j];
}
allCombinationsOfNElements.addAll(generationCombinations(combination, i + elementsKnown, numbers));
}
return allCombinationsOfNElements;
}
private static List<int[]> generationCombinations(int[] knownElements, int index, int[] numbers) {
List<int[]> combinations = new ArrayList<>();
for (int i = index; i < numbers.length; i++) {
int[] combinationComplete = Arrays.copyOf(knownElements, knownElements.length);
combinationComplete[knownElements.length - 1] = numbers[i];
combinations.add(combinationComplete);
}
return combinations;
}
private static void printArray(int[] numbers) {
System.out.println();
for (int i = 0; i < numbers.length; i++) {
System.out.print(numbers[i] + " ");
}
}
private static void printArrayIfNumbersSumExpectedValue(int[] numbers, int expectedValue) {
int total = 0;
for (int i = 0; i < numbers.length; i++) {
total += numbers[i];
}
if (total == expectedValue) {
System.out.print("\n ----- Here is a combination you are looking for -----");
printArray(numbers);
System.out.print("\n -------------------------------");
}
}
CREATE OR REPLACE FUNCTION parse_int(s TEXT) RETURNS INT AS $$
BEGIN
RETURN regexp_replace(('0' || s), '[^\d]', '', 'g')::INT;
END;
$$ LANGUAGE plpgsql;
This function will always return 0
if there are no digits in the input string.
SELECT parse_int('test12_3test');
will return 123
I know this is an old one but it comes up top of Google and all the links provided now seem out of date.
This is the latest list of types Facebook accepts: https://developers.facebook.com/docs/reference/opengraph
If you don't use one of these then the type will default to 'website' which is best used for home pages/summarising a web site.
In answer to the OP you would now want to use a place which will allow you to add lat/long location details.
LocalDate::plusMonths
Example:
LocalDate.now( )
.plusMonths( 1 );
Better to specify time zone.
LocalDate.now( ZoneId.of( "America/Montreal" )
.plusMonths( 1 );
The java.time framework is built into Java 8 and later. These classes supplant the old troublesome date-time classes such as java.util.Date
, .Calendar
, & java.text.SimpleDateFormat
. The Joda-Time team also advises migration to java.time.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations.
Much of the java.time functionality is back-ported to Java 6 & 7 in ThreeTen-Backport and further adapted to Android in ThreeTenABP.
If you want the date-only, use the LocalDate
class.
ZoneId z = ZoneId.of( "America/Montreal" );
LocalDate today = LocalDate.now( z );
today.toString(): 2017-01-23
Add a month.
LocalDate oneMonthLater = today.plusMonths( 1 );
oneMonthLater.toString(): 2017-02-23
Perhaps you want a time-of-day along with the date.
First get the current moment in UTC with a resolution of nanoseconds.
Instant instant = Instant.now();
Adding a month means determining dates. And determining dates means applying a time zone. For any given moment, the date varies around the world with a new day dawning earlier to the east. So adjust that Instant
into a time zone.
ZoneId zoneId = ZoneId.of( "America/Montreal" );
ZonedDateTime zdt = ZonedDateTime.ofInstant( instant , zoneId );
Now add your month. Let java.time handle Leap month, and the fact that months vary in length.
ZonedDateTime zdtMonthLater = zdt.plusMonths( 1 );
You might want to adjust the time-of-day to the first moment of the day when making this kind of calculation. That first moment is not always 00:00:00.0
so let java.time determine the time-of-day.
ZonedDateTime zdtMonthLaterStartOfDay = zdtMonthLater.toLocalDate().atStartOfDay( zoneId );
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
Update: The Joda-Time project is now in maintenance mode. Its team advises migration to the java.time classes. I am leaving this section intact for posterity.
The Joda-Time library offers a method to add months in a smart way.
DateTimeZone timeZone = DateTimeZone.forID( "Europe/Paris" );
DateTime now = DateTime.now( timeZone );
DateTime nextMonth = now.plusMonths( 1 );
You might want to focus on the day by adjust the time-of-day to the first moment of the day.
DateTime nextMonth = now.plusMonths( 1 ).withTimeAtStartOfDay();
You should use the Spring Boot Maven Plugin:
<project>
...
<build>
...
<plugins>
...
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>1.5.1.RELEASE</version>
<configuration>
<profiles>
<profile>foo</profile>
<profile>bar</profile>
</profiles>
</configuration>
...
</plugin>
...
</plugins>
...
</build>
...
</project>
Sounds like they want the ability to return only allowed fields, which means the number of fields returned also has to be dynamic. This will work with 2 variables. Anything more than that will be getting confusing.
IF (selectField1 = true AND selectField2 = true)
BEGIN
SELECT Field1, Field2
FROM Table
END
ELSE IF (selectField1 = true)
BEGIN
SELECT Field1
FROM Table
END
ELSE IF (selectField2 = true)
BEGIN
SELECT Field2
FROM Table
END
Dynamic SQL will help with multiples. This examples is assuming atleast 1 column is true.
DECLARE @sql varchar(MAX)
SET @sql = 'SELECT '
IF (selectField1 = true)
BEGIN
SET @sql = @sql + 'Field1, '
END
IF (selectField2 = true)
BEGIN
SET @sql = @sql + 'Field2, '
END
...
-- DROP ', '
@sql = SUBSTRING(@sql, 1, LEN(@sql)-2)
SET @sql = @sql + ' FROM Table'
EXEC(@sql)
I had a similar issue when attempting to switch to from OutOfProcess hosting to InProcess hosting on a .Net Core project which I had recently upgraded from 2.0 to 3.0.
With no real helpful error to go on and after spending days trying to resolve this, I eventually found a fix for my case which I thought I'd share in case it is helpful to anyone else struggling with this.
For me, it was caused by a few Microsoft.AspNetCore packages.
After removing all of the referenced Microsoft.AspNetCore packages that had version less than 3.0.0 (there was no upgrade available >= 3.0.0 for these) this error no longer occurred.
These were the packages I removed;
<PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
<PackageReference Include="Microsoft.AspNetCore.App" Version="2.2.8" />
<PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="2.2.1" />
<PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
All other Microsoft.AspNetCore packages with version greater than or equal to 3.0.0 worked fine.
You can use a bit of functionality that is already built in to the ant jar task.
If you go to The documentation for the ant jar task and scroll down to the "merging archives" section there's a snippet for including the all the *.class files from all the jars in you "lib/main" directory:
<jar destfile="build/main/checksites.jar">
<fileset dir="build/main/classes"/>
<restrict>
<name name="**/*.class"/>
<archives>
<zips>
<fileset dir="lib/main" includes="**/*.jar"/>
</zips>
</archives>
</restrict>
<manifest>
<attribute name="Main-Class" value="com.acme.checksites.Main"/>
</manifest>
</jar>
This Creates an executable jar file with a main class "com.acme.checksites.Main", and embeds all the classes from all the jars in lib/main.
It won't do anything clever in case of namespace conflicts, duplicates and things like that. Also, it will include all class files, also the ones that you don't use, so the combined jar file will be full size.
If you need more advanced things like that, take a look at like one-jar and jar jar links
In current versions of Mocha, the timeout can be changed globally like this:
mocha.timeout(5000);
Just add the line above anywhere in your test suite, preferably at the top of your spec or in a separate test helper.
In older versions, and only in a browser, you could change the global configuration using mocha.setup
.
mocha.setup({ timeout: 5000 });
The documentation does not cover the global timeout setting, but offers a few examples on how to change the timeout in other common scenarios.
If you want distinct values from only two fields, plus return other fields with them, then the other fields must have some kind of aggregation on them (sum, min, max, etc.), and the two columns you want distinct must appear in the group by clause. Otherwise, it's just as Decker says.
I would use phpseclib, a pure PHP SSH implementation. An example:
<?php
include('Net/SSH2.php');
$ssh = new Net_SSH2('www.domain.tld');
if (!$ssh->login('username', 'password')) {
exit('Login Failed');
}
echo $ssh->exec('pwd');
echo $ssh->exec('ls -la');
?>
You can easily whip up your own function to do this using itertools
:
from itertools import izip, islice, tee
s = 'spam and eggs'
N = 3
trigrams = izip(*(islice(seq, index, None) for index, seq in enumerate(tee(s, N))))
list(trigrams)
# [('s', 'p', 'a'), ('p', 'a', 'm'), ('a', 'm', ' '),
# ('m', ' ', 'a'), (' ', 'a', 'n'), ('a', 'n', 'd'),
# ('n', 'd', ' '), ('d', ' ', 'e'), (' ', 'e', 'g'),
# ('e', 'g', 'g'), ('g', 'g', 's')]
Your way can't work for two reasons.
You need to use set /p text=
for setting the variable with user input.
The other problem is the pipe.
A pipe starts two asynchronous cmd.exe instances and after finishing the job both instances are closed.
That's the cause why it seems that the variables are not set, but a small example shows that they are set but the result is lost later.
set myVar=origin
echo Hello | (set /p myVar= & set myVar)
set myVar
Outputs
Hello
origin
Alternatives: You can use the FOR loop to get values into variables or also temp files.
for /f "delims=" %%A in ('echo hello') do set "var=%%A"
echo %var%
or
>output.tmp echo Hello
>>output.tmp echo world
<output.tmp (
set /p line1=
set /p line2=
)
echo %line1%
echo %line2%
Alternative with a macro:
You can use a batch macro, this is a bit like the bash equivalent
@echo off
REM *** Get version string
%$set% versionString="ver"
echo The version is %versionString[0]%
REM *** Get all drive letters
`%$set% driveLetters="wmic logicaldisk get name /value | findstr "Name""
call :ShowVariable driveLetters
The definition of the macro can be found at
SO:Assign output of a program to a variable using a MS batch file
In management studio you can set the timeout in seconds. menu Tools => Options set the field and then Ok
build gradle:
testImplementation "com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0"
code:
interface MyCallback {
fun someMethod(value: String)
}
class MyTestableManager(private val callback: MyCallback){
fun perform(){
callback.someMethod("first")
callback.someMethod("second")
callback.someMethod("third")
}
}
test:
import com.nhaarman.mockitokotlin2.times
import com.nhaarman.mockitokotlin2.verify
import com.nhaarman.mockitokotlin2.mock
...
val callback: MyCallback = mock()
val manager = MyTestableManager(callback)
manager.perform()
val captor: KArgumentCaptor<String> = com.nhaarman.mockitokotlin2.argumentCaptor<String>()
verify(callback, times(3)).someMethod(captor.capture())
assertTrue(captor.allValues[0] == "first")
assertTrue(captor.allValues[1] == "second")
assertTrue(captor.allValues[2] == "third")
It depends a bit on what you want:
A) If you want to specify which libraries to link to, you can use find_library to find libs and then use link_directories and target_link_libraries to.
Of course, it is often worth the effort to write a good find_package script, which nicely adds "imported" libraries with add_library( YourLib IMPORTED ) with correct locations, and platform/build specific pre- and suffixes. You can then simply refer to 'YourLib' and use target_link_libraries.
B) If you wish to specify particular linker-flags, e.g. '-mthreads' or '-Wl,--export-all-symbols' with MinGW-GCC, you can use CMAKE_EXE_LINKER_FLAGS. There are also two similar but undocumented flags for modules, shared or static libraries:
CMAKE_MODULE_LINKER_FLAGS
CMAKE_SHARED_LINKER_FLAGS
CMAKE_STATIC_LINKER_FLAGS
As of v 0.7.0 of the private registry you can do:
$ curl -X GET http://localhost:5000/v1/search?q=postgresql
and you will get a json payload:
{"num_results": 1, "query": "postgresql", "results": [{"description": "", "name": "library/postgresql"}]}
to give more background here is how I started my registry:
docker run \
-e SETTINGS_FLAVOR=local \
-e STORAGE_PATH=/registry \
-e SEARCH_BACKEND=sqlalchemy \
-e LOGLEVEL=DEBUG \
-p 5000:5000 \
registry
You can use different types of redirect method in laravel -
return redirect()->intended('http://heera.it');
OR
return redirect()->to('http://heera.it');
OR
use Illuminate\Support\Facades\Redirect;
return Redirect::to('/')->with(['type' => 'error','message' => 'Your message'])->withInput(Input::except('password'));
OR
return redirect('/')->with(Auth::logout());
OR
return redirect()->route('user.profile', ['step' => $step, 'id' => $id]);
Try:
return $this->sendRequest($uri);
Since PHP is not a pure Object-Orieneted language, it interprets sendRequest()
as an attempt to invoke a globally defined function (just like nl2br()
for example), but since your function is part of a class ('InstagramController'), you need to use $this
to point the interpreter in the right direction.
The best way to do this is:
#if TARGET_IPHONE_SIMULATOR
and not
#ifdef TARGET_IPHONE_SIMULATOR
since its always defined: 0 or 1
You can also use guava Table implementation for this.
Table represents a special map where two keys can be specified in combined fashion to refer to a single value. It is similar to creating a map of maps.
//create a table
Table<String, String, String> employeeTable = HashBasedTable.create();
//initialize the table with employee details
employeeTable.put("IBM", "101","Mahesh");
employeeTable.put("IBM", "102","Ramesh");
employeeTable.put("IBM", "103","Suresh");
employeeTable.put("Microsoft", "111","Sohan");
employeeTable.put("Microsoft", "112","Mohan");
employeeTable.put("Microsoft", "113","Rohan");
employeeTable.put("TCS", "121","Ram");
employeeTable.put("TCS", "122","Shyam");
employeeTable.put("TCS", "123","Sunil");
//get Map corresponding to IBM
Map<String,String> ibmEmployees = employeeTable.row("IBM");
If you don't have access to java 8 and the API java.time, here is my simple function to copy the time of one date to another date using the old java.util.Calendar (inspire by Jigar Joshi) :
/**
* Copy only the time of one date to the date of another date.
*/
public static Date copyTimeToDate(Date date, Date time) {
Calendar t = Calendar.getInstance();
t.setTime(time);
Calendar c = Calendar.getInstance();
c.setTime(date);
c.set(Calendar.HOUR_OF_DAY, t.get(Calendar.HOUR_OF_DAY));
c.set(Calendar.MINUTE, t.get(Calendar.MINUTE));
c.set(Calendar.SECOND, t.get(Calendar.SECOND));
c.set(Calendar.MILLISECOND, t.get(Calendar.MILLISECOND));
return c.getTime();
}
You can try converting your image from tiff to PNG, here is how to do it:
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.ImageEncoder;
import com.sun.media.jai.codec.PNGEncodeParam;
import com.sun.media.jai.codec.TIFFDecodeParam;
import java.awt.image.RenderedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import javaxt.io.Image;
public class ImgConvTiffToPng {
public static byte[] convert(byte[] tiff) throws Exception {
byte[] out = new byte[0];
InputStream inputStream = new ByteArrayInputStream(tiff);
TIFFDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", inputStream, param);
RenderedImage op = dec.decodeAsRenderedImage(0);
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
PNGEncodeParam jpgparam = null;
ImageEncoder en = ImageCodec.createImageEncoder("png", outputStream, jpgparam);
en.encode(op);
outputStream = (ByteArrayOutputStream) en.getOutputStream();
out = outputStream.toByteArray();
outputStream.flush();
outputStream.close();
return out;
}
document.querySelectorAll("[data-foo]")
will get you all elements with that attribute.
document.querySelectorAll("[data-foo='1']")
will only get you ones with a value of 1.
Just one line and you are done (make sure mysql command is available as global or just go to mysql installation folder and enter into bin folder)
mysql -u database_user_name -p -D database_name < complete_file_path_with_file_name_and_extension
Here
u
stands for Userp
stands for PasswordD
stands for Database---DON'T FORGET TO ADD <
SIGN AFTER DATABASE NAME---
Complete file path with name and extension can be like
c:\folder_name\"folder name"\sql_file.sql
---IF YOUR FOLDER AND FILE NAME CONTAINS SPACE THAN BIND THEM USING DOUBLE QUOTE---
Tip and Note: You can write your password after -p
but this is not recommended because it will show to others who are watching your screen at that time, if you don't write there it will ask you when you will execute command by pressing enter.
The same can be done without DataTrigger
too:
<DataGrid.RowStyle>
<Style TargetType="DataGridRow">
<Setter Property="Background" >
<Setter.Value>
<Binding Path="State" Converter="{StaticResource BooleanToBrushConverter}">
<Binding.ConverterParameter>
<x:Array Type="SolidColorBrush">
<SolidColorBrush Color="{StaticResource RedColor}"/>
<SolidColorBrush Color="{StaticResource TransparentColor}"/>
</x:Array>
</Binding.ConverterParameter>
</Binding>
</Setter.Value>
</Setter>
</Style>
</DataGrid.RowStyle>
Where BooleanToBrushConverter
is the following class:
public class BooleanToBrushConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null)
return Brushes.Transparent;
Brush[] brushes = parameter as Brush[];
if (brushes == null)
return Brushes.Transparent;
bool isTrue;
bool.TryParse(value.ToString(), out isTrue);
if (isTrue)
{
var brush = (SolidColorBrush)brushes[0];
return brush ?? Brushes.Transparent;
}
else
{
var brush = (SolidColorBrush)brushes[1];
return brush ?? Brushes.Transparent;
}
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
The finite repetition syntax uses {m,n}
in place of star/plus/question mark.
From java.util.regex.Pattern
:
X{n} X, exactly n times
X{n,} X, at least n times
X{n,m} X, at least n but not more than m times
All repetition metacharacter have the same precedence, so just like you may need grouping for *
, +
, and ?
, you may also for {n,m}
.
ha*
matches e.g. "haaaaaaaa"
ha{3}
matches only "haaa"
(ha)*
matches e.g. "hahahahaha"
(ha){3}
matches only "hahaha"
Also, just like *
, +
, and ?
, you can add the ?
and +
reluctant and possessive repetition modifiers respectively.
System.out.println(
"xxxxx".replaceAll("x{2,3}", "[x]")
); "[x][x]"
System.out.println(
"xxxxx".replaceAll("x{2,3}?", "[x]")
); "[x][x]x"
Essentially anywhere a *
is a repetition metacharacter for "zero-or-more", you can use {...}
repetition construct. Note that it's not true the other way around: you can use finite repetition in a lookbehind, but you can't use *
because Java doesn't officially support infinite-length lookbehind.
.*
and .*?
for regexregex{n,}?
== regex{n}
?a{1}b{0,1}
instead of ab?
From the UIDevice
class:
As an example: [[UIDevice currentDevice] name];
The UIDevice is a class that provides information about the iPhone or iPod Touch device.
Some of the information provided by UIDevice is static, such as device name or system version.
source: http://servin.com/iphone/uidevice/iPhone-UIDevice.html
Offical Documentation: Apple Developer Documentation > UIDevice
Class Reference
For example:
$('html, body').scrollTop($(document).height());
simple synchronous way with node:
let fs = require('fs')
let filename = "your-file.something"
let content = fs.readFileSync(process.cwd() + "/" + filename).toString()
console.log(content)
Included page:
<!-- opening and closing tags of included page -->
<ui:composition ...>
</ui:composition>
Including page:
<!--the inclusion line in the including page with the content-->
<ui:include src="yourFile.xhtml"/>
ui:composition
as shown above.ui:include
in the including xhtml file as also shown above.Well, the documentation does actually state that
CodeIgniter supports "flashdata", or session data that will only be available for the next server request, and are then automatically cleared.
as the very first thing, which obviusly means that you need to do a new server request. A redirect, a refresh, a link or some other mean to send the user to the next request.
Why use flashdata if you are using it in the same request, anyway? You'd might as well not use flashdata or use a regular session.
You can use attributes from the System.ComponentModel.DataAnnotations
namespace to set validation rules. Refer Model Validation - By Mike Wasson for details.
Also refer video ASP.NET Web API, Part 5: Custom Validation - Jon Galloway
Other References
The easiest way:
mysql -u root -p YOUR_DATABASE
Enter this and you'll need to type your password in.
Note: Yes, without a semicolon.
neat one-liner:
while (dataReader.Read())
{
employee.FirstName = (!dataReader.IsDBNull(dataReader.GetOrdinal("FirstName"))) ? dataReader["FirstName"].ToString() : "";
}
For what it's worth, The Ruby docs are an amazing resource for these kinds of questions.
I would also take note of the length of the array you're searching through. The include?
method will run a linear search with O(n) complexity which can get pretty ugly depending on the size of the array.
If you're working with a large (sorted) array, I would consider writing a binary search algorithm which shouldn't be too difficult and has a worst case of O(log n).
Or if you're using Ruby 2.0, you can take advantage of bsearch
.
The jQuery blog, jQuery 3.1.1 Released!, says,
Slim build
Sometimes you don’t need ajax, or you prefer to use one of the many standalone libraries that focus on ajax requests. And often it is simpler to use a combination of CSS and class manipulation for all your web animations. Along with the regular version of jQuery that includes the ajax and effects modules, we’ve released a “slim” version that excludes these modules. All in all, it excludes ajax, effects, and currently deprecated code. The size of jQuery is very rarely a load performance concern these days, but the slim build is about 6k gzipped bytes smaller than the regular version – 23.6k vs 30k.
Morgan should not be used to log in the way you're describing. Morgan was built to do logging in the way that servers like Apache and Nginx log to the error_log or access_log. For reference, this is how you use morgan:
var express = require('express'),
app = express(),
morgan = require('morgan'); // Require morgan before use
// You can set morgan to log differently depending on your environment
if (app.get('env') == 'production') {
app.use(morgan('common', { skip: function(req, res) { return res.statusCode < 400 }, stream: __dirname + '/../morgan.log' }));
} else {
app.use(morgan('dev'));
}
Note the production line where you see morgan called with an options hash {skip: ..., stream: __dirname + '/../morgan.log'}
The stream
property of that object determines where the logger outputs. By default it's STDOUT (your console, just like you want) but it'll only log request data. It isn't going to do what console.log()
does.
If you want to inspect things on the fly use the built in util
library:
var util = require('util');
console.log(util.inspect(anyObject)); // Will give you more details than console.log
So the answer to your question is that you're asking the wrong question. But if you still want to use Morgan for logging requests, there you go.
An alternative option is to use str_sort()
from library stringr, with the argument numeric = TRUE
. This will correctly order column that include numbers not just alphabetically:
str_sort(c("V3", "V1", "V10"), numeric = TRUE)
# [1] V1 V3 V11
This is a security update. If an attacker can modify some file in the web server (the JS one, for example), he can make every loaded pages to download another script (for example to keylog your password or steal your SessionID and send it to his own server).
To avoid it, the browser check the Same-origin policy
Your problem is that the browser is trying to load something with your script (with an Ajax request) that is on another domain (or subdomain). To avoid it (if it is on your own website) you can:
Locate the following file
C:\Users\
[your name]\.android\adb_usb.ini
And make the following changes:
# ANDROID 3RD PARTY USB VENDOR ID LIST -- DO NOT EDIT.
# USE 'android update adb' TO GENERATE.
# 1 USB VENDOR ID PER LINE.
0x2207
I added 0x2207
to the file. This number is part of the hardware id, which can be found under the device's hardware information.
Mine was:
USB\VID_2207&PID_0010&MI_01
(I tried executing android update adb
, but it did nothing.)
List<string> accountList = new List<string> {"123872", "987653" , "7625019", "028401"};
int i = accountList.FindIndex(x => x.StartsWith("762"));
//This will give you index of 7625019 in list that is 2. value of i will become 2.
//delegate(string ac)
//{
// return ac.StartsWith(a.AccountNumber);
//}
//);
No, the correct join is:
inner join Employees m on e.mgr = m.EmpID;
You need to match the ManagerID for the current employee with the EmployeeID of the manager. Not with the ManagerID of the manager.
update
As noted by Andrey Gordeev:
You'd also need to add m.Ename
to your SELECT
query in order to get the name of the Manager in your result. Otherwise you'd only get the managerID.
I tied this in the handler to make it work:
void TabControl_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.Source is TabControl)
{
//do work when tab is changed
}
}
I was getting this same issue but in a different situation. I had a list of items in a list box. The user can click an item and select delete but I am using a stored proc to delete the item because there is a lot of logic involved in deleting the item. When I call the stored proc the delete works fine but any future call to SaveChanges will cause the error. My solution was to call the stored proc outside of EF and this worked fine. For some reason when I call the stored proc using the EF way of doing things it leaves something open.
If [John Smith]
is in cell A1, then use this formula to do what you want:
=SUBSTITUTE(SUBSTITUTE(A1, "[", ""), "]", "")
The inner SUBSTITUTE replaces all instances of "[" with "" and returns a new string, then the other SUBSTITUTE replaces all instances of "]" with "" and returns the final result.
Change your main to:
public static void main(String[] args) {
EchoServer echoServer = new EchoServer();
echoServer.listen();
}
When you declare Object EchoServer0;
you have a few mistakes.
new
.Restarting the machine worked for me but not every time.
If you are really stuck on this then follow below steps
Reflector and its add-in FileDisassembler.
Reflector will allow to see the source code. FileDisassembler will allow you to convert it into a VS solution.
From Dockerfile reference:
The
ARG
instruction defines a variable that users can pass at build-time to the builder with the docker build command using the--build-arg <varname>=<value>
flag.The
ENV
instruction sets the environment variable<key>
to the value<value>
.
The environment variables set usingENV
will persist when a container is run from the resulting image.
So if you need build-time customization, ARG
is your best choice.
If you need run-time customization (to run the same image with different settings), ENV
is well-suited.
If I want to add let's say 20 (a random number) of extensions or any other feature that can be enable|disable
Given the number of combinations involved, using ENV
to set those features at runtime is best here.
But you can combine both by:
ARG
ARG
as an ENV
That is, with a Dockerfile including:
ARG var
ENV var=${var}
You can then either build an image with a specific var
value at build-time (docker build --build-arg var=xxx
), or run a container with a specific runtime value (docker run -e var=yyy
)
$date=$year."-".$month."-".$day;
$new_date=date('Y-m-d', strtotime($dob));
$status=0;
$insert_date = date("Y-m-d H:i:s");
$latest_insert_id=0;
$insertSql="insert into participationDetail (formId,name,city,emailId,dob,mobile,status,social_media1,social_media2,visa_status,tnc_status,data,gender,insertDate)values('".$formid."','".$name."','".$city."','".$email."','".$new_date."','".$mobile."','".$status."','".$link1."','".$link2."','".$visa_check."','".$tnc_check."','".json_encode($detail_arr,JSON_HEX_APOS)."','".$gender."','".$insert_date."')";
As of Django 1.9, the way to do this is by using __date
on a datetime object.
For example:
MyObject.objects.filter(datetime_attr__date=datetime.date(2009,8,22))
For the first rule,
Click "greater than", then in the value option box, click on the cell criteria you want it to be less than, than use the format drop-down to select your color.
For the second,
Click "less than", then in the value option box, type "=.9*" and then click the cell criteria, then use the formatting just like step 1.
For the third,
Same as the second, except your formula is =".8*" rather than .9.
Following two configuration is working for me.
1 .tomcat-users.xml details
--------------------------------
<role rolename="manager-gui"/>
<role rolename="manager-script"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<role rolename="admin-gui"/>
<role rolename="admin-script"/>
<role rolename="tomcat"/>
<user username="tomcat" password="tomcat" roles="tomcat"/>
<user username="admin" password="admin" roles="admin-gui"/>
<user username="adminscript" password="adminscrip" roles="admin-script"/>
<user username="tomcat" password="s3cret" roles="manager-gui"/>
<user username="status" password="status" roles="manager-status"/>
<user username="both" password="both" roles="manager-gui,manager-status"/>
<user username="script" password="script" roles="manager-script"/>
<user username="jmx" password="jmx" roles="manager-jmx"/>
2. context.xml of <tomcat>/webapps/manager/META-INF/context.xml and
<tomcat>/webapps/host-manager/META-INF/context.xml
------------------------------------------------------------------------
<Context antiResourceLocking="false" privileged="true" >
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow=".*" />
<Manager sessionAttributeValueClassNameFilter="java\.lang\.(?:Boolean|Integer|Long|Number|String)|org\.apache\.catalina\.filters\.CsrfPreventionFilter\$LruCache(?:\$1)?|java\.util\.(?:Linked)?HashMap"/>
cross apply
sometimes enables you to do things that you cannot do with inner join
.
Example (a syntax error):
select F.* from sys.objects O
inner join dbo.myTableFun(O.name) F
on F.schema_id= O.schema_id
This is a syntax error, because, when used with inner join
, table functions can only take variables or constants as parameters. (I.e., the table function parameter cannot depend on another table's column.)
However:
select F.* from sys.objects O
cross apply ( select * from dbo.myTableFun(O.name) ) F
where F.schema_id= O.schema_id
This is legal.
Edit: Or alternatively, shorter syntax: (by ErikE)
select F.* from sys.objects O
cross apply dbo.myTableFun(O.name) F
where F.schema_id= O.schema_id
Edit:
Note: Informix 12.10 xC2+ has Lateral Derived Tables and Postgresql (9.3+) has Lateral Subqueries which can be used to a similar effect.
It may be as simple as installing git on the remote host (like it was in my case).
sudo apt-get install git
Or equivalent for other package management systems.
Here is code by AbacusUtil
LongStream.of(1, 10, 50, 80, 100, 120, 133, 333).filter(e -> e > 100).toList();
Disclosure: I'm the developer of AbacusUtil.
In my case, I Apache's mod-rewrite was matching the url and redirecting the request to https.
Look at the request in chrome://net-internals/#events.
It will show an internal log of the request. Check for redirects.
mtrakal's solution worked fine.
Added to gradle.build:
buildscript {
repositories {
maven { url 'https://maven.google.com' }
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.0-alpha2'
// NOTE: Do not place your application dependencies here;
// they belong in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
Then it automatically upgraded to alpha2.
Invalidate the caches and restarted all is fine.
File | Invalidate Caches / Restart
choose 'Invalidate & Restart'
You should be using datetime.datetime.strptime
. Note that very old versions of Python (2.4 and older) don't have datetime.datetime.strptime
; use time.strptime
in that case.
You don't need MockRestServiceServer
object. The annotation is @InjectMocks
not @Inject
. Below is an example code that should work
@RunWith(MockitoJUnitRunner.class)
public class SomeServiceTest {
@Mock
private RestTemplate restTemplate;
@InjectMocks
private SomeService underTest;
@Test
public void testGetObjectAList() {
ObjectA myobjectA = new ObjectA();
//define the entity you want the exchange to return
ResponseEntity<List<ObjectA>> myEntity = new ResponseEntity<List<ObjectA>>(HttpStatus.ACCEPTED);
Mockito.when(restTemplate.exchange(
Matchers.eq("/objects/get-objectA"),
Matchers.eq(HttpMethod.POST),
Matchers.<HttpEntity<List<ObjectA>>>any(),
Matchers.<ParameterizedTypeReference<List<ObjectA>>>any())
).thenReturn(myEntity);
List<ObjectA> res = underTest.getListofObjectsA();
Assert.assertEquals(myobjectA, res.get(0));
}
In the language designed by Dennis Ritchie, every access to any object, other than automatic objects whose address had not been taken, would behave as though it computed the address of the object and then read or wrote the storage at that address. This made the language very powerful, but severely limited optimization opportunities.
While it might have been possible to add a qualifier that would invite a compiler to assume that a particular object wouldn't be changed in weird ways, such an assumption would be appropriate for the vast majority of objects in C programs, and it would have been impractical to add a qualifier to all the objects for which such assumption would be appropriate. On the other hand, some programs need to use some objects for which such an assumption would not hold. To resolve this issue, the Standard says that compilers may assume that objects which are not declared volatile
will not have their value observed or changed in ways that are outside the compiler's control, or would be outside a reasonable compiler's understanding.
Because various platforms may have different ways in which objects could be observed or modified outside a compiler's control, it is appropriate that quality compilers for those platforms should differ in their exact handling of volatile
semantics. Unfortunately, because the Standard failed to suggest that quality compilers intended for low-level programming on a platform should handle volatile
in a way that will recognize any and all relevant effects of a particular read/write operation on that platform, many compilers fall short of doing so in ways that make it harder to process things like background I/O in a way which is efficient but can't be broken by compiler "optimizations".
case the column isn't string, use astype to convert:
df['col'] = df['col'].astype(str).str[:9]
Using java.nio.Path
it would be quite simple -
public static Path createFileWithDir(String directory, String filename) {
File dir = new File(directory);
if (!dir.exists()) dir.mkdirs();
return Paths.get(directory + File.separatorChar + filename);
}
StringBuffer
StringBuffer is mutable means one can change the value of the object . The object created through StringBuffer is stored in the heap . StringBuffer has the same methods as the StringBuilder , but each method in StringBuffer is synchronized that is StringBuffer is thread safe .
because of this it does not allow two threads to simultaneously access the same method . Each method can be accessed by one thread at a time .
But being thread safe has disadvantages too as the performance of the StringBuffer hits due to thread safe property . Thus StringBuilder is faster than the StringBuffer when calling the same methods of each class.
StringBuffer value can be changed , it means it can be assigned to the new value . Nowadays its a most common interview question ,the differences between the above classes . String Buffer can be converted to the string by using toString() method.
StringBuffer demo1 = new StringBuffer(“Hello”) ;
// The above object stored in heap and its value can be changed .
demo1=new StringBuffer(“Bye”);
// Above statement is right as it modifies the value which is allowed in the StringBuffer
StringBuilder
StringBuilder is same as the StringBuffer , that is it stores the object in heap and it can also be modified . The main difference between the StringBuffer and StringBuilder is that StringBuilder is also not thread safe. StringBuilder is fast as it is not thread safe .
StringBuilder demo2= new StringBuilder(“Hello”);
// The above object too is stored in the heap and its value can be modified
demo2=new StringBuilder(“Bye”);
// Above statement is right as it modifies the value which is allowed in the StringBuilder
Resource: String Vs StringBuffer Vs StringBuilder
There's no legitimate reason to use this "trick". Guava provides nice immutable collections that include both static factories and builders, allowing you to populate your collection where it's declared in a clean, readable, and safe syntax.
The example in the question becomes:
Set<String> flavors = ImmutableSet.of(
"vanilla", "strawberry", "chocolate", "butter pecan");
Not only is this shorter and easier to read, but it avoids the numerous issues with the double-braced pattern described in other answers. Sure, it performs similarly to a directly-constructed HashMap
, but it's dangerous and error-prone, and there are better options.
Any time you find yourself considering double-braced initialization you should re-examine your APIs or introduce new ones to properly address the issue, rather than take advantage of syntactic tricks.
As the top answer here is suggesting something wrong (or at least too complicated), I feel this should be updated, although the question is quite old:
When using String resources in Android, you just have to call getString(...)
from Java code or use android:text="@string/..."
in your layout XML.
Even if you want to use HTML markup in your Strings, you don't have to change a lot:
The only characters that you need to escape in your String resources are:
"
becomes \"
'
becomes \'
&
becomes &
or &
That means you can add your HTML markup without escaping the tags:
<string name="my_string"><b>Hello World!</b> This is an example.</string>
However, to be sure, you should only use <b>
, <i>
and <u>
as they are listed in the documentation.
If you want to use your HTML strings from XML, just keep on using android:text="@string/..."
, it will work fine.
The only difference is that, if you want to use your HTML strings from Java code, you have to use getText(...)
instead of getString(...)
now, as the former keeps the style and the latter will just strip it off.
It's as easy as that. No CDATA, no Html.fromHtml(...)
.
You will only need Html.fromHtml(...)
if you did encode your special characters in HTML markup. Use it with getString(...)
then. This can be necessary if you want to pass the String to String.format(...)
.
This is all described in the docs as well.
Edit:
There is no difference between getText(...)
with unescaped HTML (as I've proposed) or CDATA
sections and Html.fromHtml(...)
.
See the following graphic for a comparison:
If you have compatibility with Object.keys
, and node does have compatibility, you should use that for sure.
However, if you do not have compatibility, and for any reason using a loop function is out of the question - like me, I used the following solution:
JSON.stringify(obj) === '{}'
Consider this solution a 'last resort' use only if must.
See in the comments "there are many ways in which this solution is not ideal".
I had a last resort scenario, and it worked perfectly.
Assuming you have some level of control over the protocol, I'm a big fan of sending heartbeats to verify that a connection is active. It's proven to be the most fail proof method and will often give you the quickest notification when a connection has been broken.
TCP keepalives will work, but what if the remote host is suddenly powered off? TCP can take a long time to timeout. On the other hand, if you have logic in your app that expects a heartbeat reply every x seconds, the first time you don't get them you know the connection no longer works, either by a network or a server issue on the remote side.
See Do I need to heartbeat to keep a TCP connection open? for more discussion.
You need to let Gson know additional type of your response as below
import com.google.common.reflect.TypeToken;
import java.lang.reflect.Type;
Type collectionType = new TypeToken<List<UserSite>>(){}.getType();
List<UserSite> userSites = gson.fromJson( response.getBody() , collectionType);
Remove the spaces from the original string and split on semicolon
$address = "[email protected]; [email protected]; [email protected]"
$addresses = $address.replace(' ','').split(';')
Or all in one line:
$addresses = "[email protected]; [email protected]; [email protected]".replace(' ','').split(';')
$addresses
becomes:
@('[email protected]','[email protected]','[email protected]')
This question is a fairly difficult one. There is no real software limitation on the number of active connections a machine can have, though some OS's are more limited than others. The problem becomes one of resources. For example, let's say a single machine wants to support 64,000 simultaneous connections. If the server uses 1MB of RAM per connection, it would need 64GB of RAM. If each client needs to read a file, the disk or storage array access load becomes much larger than those devices can handle. If a server needs to fork one process per connection then the OS will spend the majority of its time context switching or starving processes for CPU time.
The C10K problem page has a very good discussion of this issue.
The change event is triggered on the <select>
element, not the <option>
element. However, that's not the only problem. The way you defined the change
function won't cause a rerender of the component. It seems like you might not have fully grasped the concept of React yet, so maybe "Thinking in React" helps.
You have to store the selected value as state and update the state when the value changes. Updating the state will trigger a rerender of the component.
var MySelect = React.createClass({
getInitialState: function() {
return {
value: 'select'
}
},
change: function(event){
this.setState({value: event.target.value});
},
render: function(){
return(
<div>
<select id="lang" onChange={this.change} value={this.state.value}>
<option value="select">Select</option>
<option value="Java">Java</option>
<option value="C++">C++</option>
</select>
<p></p>
<p>{this.state.value}</p>
</div>
);
}
});
React.render(<MySelect />, document.body);
Also note that <p>
elements don't have a value
attribute. React/JSX simply replicates the well-known HTML syntax, it doesn't introduce custom attributes (with the exception of key
and ref
). If you want the selected value to be the content of the <p>
element then simply put inside of it, like you would do with any static content.
Learn more about event handling, state and form controls:
The Java XML parser that spring uses will read the schemaLocation
values and try to load them from the internet, in order to validate the XML file. Spring, in turn, intercepts those load requests and serves up versions from inside its own JAR files.
If you omit the schemaLocation
, then the XML parser won't know where to get the schema in order to validate the config.
STEP 1: FIRST OPEN THE COMMAND PROMPT WHERE YOUR FILE IS LOCATED. (right click while pressing shift)
STEP 2: THEN USE THE FOLLOWING COMMANDS TO EXECUTE.
(lets say the file and class name to be executed is named as Student.java)The example program is in the picture background.
javac Student.java
java Student
writer = pd.ExcelWriter('prueba1.xlsx'engine='openpyxl',keep_date_col=True)
The "keep_date_col" hope help you
This problem has been addressed in ASP.Net MVC 3. They now automatically convert underscores in html attribute properties to dashes. They got lucky on this one, as underscores are not legal in html attributes, so MVC can confidently imply that you'd like a dash when you use an underscore.
For example:
@Html.TextBoxFor(vm => vm.City, new { data_bind = "foo" })
will render this in MVC 3:
<input data-bind="foo" id="City" name="City" type="text" value="" />
If you're still using an older version of MVC, you can mimic what MVC 3 is doing by creating this static method that I borrowed from MVC3's source code:
public class Foo {
public static RouteValueDictionary AnonymousObjectToHtmlAttributes(object htmlAttributes) {
RouteValueDictionary result = new RouteValueDictionary();
if (htmlAttributes != null) {
foreach (System.ComponentModel.PropertyDescriptor property in System.ComponentModel.TypeDescriptor.GetProperties(htmlAttributes)) {
result.Add(property.Name.Replace('_', '-'), property.GetValue(htmlAttributes));
}
}
return result;
}
}
And then you can use it like this:
<%: Html.TextBoxFor(vm => vm.City, Foo.AnonymousObjectToHtmlAttributes(new { data_bind = "foo" })) %>
and this will render the correct data-* attribute:
<input data-bind="foo" id="City" name="City" type="text" value="" />
The second. The first is invalid.
A browser will handle it like so:
<p>tetxtextextete
<!-- Start of paragraph -->
<ol>
<!-- Start of ordered list. Paragraphs cannot contain lists. Insert </p> -->
<li>first element</li></ol>
<!-- A list item element. End of list -->
</p>
<!-- End of paragraph, but not inside paragraph, discard this tag to recover from the error -->
<p>other textetxet</p>
<!-- Another paragraph -->