You must activate virtual environment where you have installed django. Then run this command - python manage.py runserver
You can use conda remove --force
.
The documentation says:
--force Forces removal of a package without removing packages
that depend on it. Using this option will usually
leave your environment in a broken and inconsistent
state
It's just JSON? You can stringify()
JSON:
var obj = {
cons: [[String, 'some', 'somemore']],
func: function(param, param2){
param2.some = 'bla';
}
};
var text = JSON.stringify(obj);
And parse back to JSON again with parse()
:
var myVar = JSON.parse(text);
If you have functions in the object, use this to serialize:
function objToString(obj, ndeep) {
switch(typeof obj){
case "string": return '"'+obj+'"';
case "function": return obj.name || obj.toString();
case "object":
var indent = Array(ndeep||1).join('\t'), isArray = Array.isArray(obj);
return ('{['[+isArray] + Object.keys(obj).map(function(key){
return '\n\t' + indent +(isArray?'': key + ': ' )+ objToString(obj[key], (ndeep||1)+1);
}).join(',') + '\n' + indent + '}]'[+isArray]).replace(/[\s\t\n]+(?=(?:[^\'"]*[\'"][^\'"]*[\'"])*[^\'"]*$)/g,'');
default: return obj.toString();
}
}
Serialize:
var text = objToString(obj); //To Serialize Object
Result:
"{cons:[[String,"some","somemore"]],func:function(param,param2){param2.some='bla';}}"
Deserialize:
Var myObj = eval('('+text+')');//To UnSerialize
Result:
Object {cons: Array[1], func: function, spoof: function}
it is not possible to import js file inside another js file
The way to use jquery inside js is
import the js in the html or whatever view page you are using inside which you are going to include the js file
view.html
<script src="<%=request.getContextPath()%>/js/jquery-1.11.3.js"></script>
<script src="<%=request.getContextPath()%>/js/default.js"></script>
default.js
$('document').ready(function() {
$('li#user').click(function() {
$(this).addClass('selectedEmp');
});
});
this will definitely work for you
Under Project->Properties->Debug, you should see a box for Command line arguments (This is in C# 2010, but it should basically be the same place)
Try this code
public class WiFiDemo extends Activity implements OnClickListener
{
WifiManager wifi;
ListView lv;
TextView textStatus;
Button buttonScan;
int size = 0;
List<ScanResult> results;
String ITEM_KEY = "key";
ArrayList<HashMap<String, String>> arraylist = new ArrayList<HashMap<String, String>>();
SimpleAdapter adapter;
/* Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
textStatus = (TextView) findViewById(R.id.textStatus);
buttonScan = (Button) findViewById(R.id.buttonScan);
buttonScan.setOnClickListener(this);
lv = (ListView)findViewById(R.id.list);
wifi = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled() == false)
{
Toast.makeText(getApplicationContext(), "wifi is disabled..making it enabled", Toast.LENGTH_LONG).show();
wifi.setWifiEnabled(true);
}
this.adapter = new SimpleAdapter(WiFiDemo.this, arraylist, R.layout.row, new String[] { ITEM_KEY }, new int[] { R.id.list_value });
lv.setAdapter(this.adapter);
registerReceiver(new BroadcastReceiver()
{
@Override
public void onReceive(Context c, Intent intent)
{
results = wifi.getScanResults();
size = results.size();
}
}, new IntentFilter(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION));
}
public void onClick(View view)
{
arraylist.clear();
wifi.startScan();
Toast.makeText(this, "Scanning...." + size, Toast.LENGTH_SHORT).show();
try
{
size = size - 1;
while (size >= 0)
{
HashMap<String, String> item = new HashMap<String, String>();
item.put(ITEM_KEY, results.get(size).SSID + " " + results.get(size).capabilities);
arraylist.add(item);
size--;
adapter.notifyDataSetChanged();
}
}
catch (Exception e)
{ }
}
}
WiFiDemo.xml :
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:id="@+id/textStatus"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="Status" />
<Button
android:id="@+id/buttonScan"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:text="Scan" />
</LinearLayout>
<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="20dp"></ListView>
</LinearLayout>
For ListView- row.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="8dp">
<TextView
android:id="@+id/list_value"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="14dp" />
</LinearLayout>
Add these permission in AndroidManifest.xml
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
Take a look at Numeral.js. It can format numbers, currency, percentages and has support for localization.
The solution provided by BBoy works fine. But in my case I had to use
e.Graphics.DrawImage(memoryImage, e.PageBounds);
This will print only the form. When I use MarginBounds it prints the entire screen even if the form is smaller than the monitor screen. PageBounds solved that issue. Thanks to BBoy!
On Cygwin -mcmodel=medium
is already default and doesn't help. To me adding -Wl,--image-base -Wl,0x10000000
to GCC linker did fixed the error.
Run your application in debug mode by clicking on
in the upper menu of Android Studio.
In the bottom status bar, click 5: Debug
button, next to the 4: Run
button.
Now you should select the Logcat
console.
In search box, you can type the tag of your message, and your message should appear, like in the following picture (where the tag is CREATION
):
Check this article for more information.
Here is a way which allows to remove points after a certain number of points plotted:
import matplotlib.pyplot as plt
# generate axes object
ax = plt.axes()
# set limits
plt.xlim(0,10)
plt.ylim(0,10)
for i in range(10):
# add something to axes
ax.scatter([i], [i])
ax.plot([i], [i+1], 'rx')
# draw the plot
plt.draw()
plt.pause(0.01) #is necessary for the plot to update for some reason
# start removing points if you don't want all shown
if i>2:
ax.lines[0].remove()
ax.collections[0].remove()
Recently I had the same problem to include QR image/png in email. The QR image is a byte array which is generated using ZXing. We do not want to save it to a file because saving/reading from a file is too expensive (slow). So both of the answers above do not work for me. Here's what I did to solve this problem:
import javax.mail.util.ByteArrayDataSource;
import org.apache.commons.mail.ImageHtmlEmail;
...
ImageHtmlEmail email = new ImageHtmlEmail();
byte[] qrImageBytes = createQRCode(); // get your image byte array
ByteArrayDataSource qrImageDataSource = new ByteArrayDataSource(qrImageBytes, "image/png");
String contentId = email.embed(qrImageDataSource, "QR Image");
Let's say the contentId is "111122223333", then your HTML part should have this:
<img src="cid: 111122223333">
There's no need to convert the byte array to Base64 because Commons Mail does the conversion for you automatically. Hope this helps.
In SQL Server:
SELECT LEN(REPLACE(myColumn, 'N', ''))
FROM ...
If your reason for wanting a 100% div inside a table cell was to be able to have a background color extend to the full height but still be able to have spacing between the cells, you could give the <td>
itself the background color and use the CSS border-spacing property to create the margin between the cells.
If you truly need a 100% height div, however, then as others here have mentioned you need to either assign a fixed height to the <table>
or use Javascript.
in Java, this is how you can separate digits from numbers and store them in an Array.
public static void main(String[] args) {
System.out.println("Digits Array:: "+Arrays.toString(getNumberArr(1100)));
}
private static Integer[] getNumberArr(int number) {
//will get the total number of digits in the number
int temp = number;
int counter = 0;
while (temp > 0) {
temp /= 10;
counter++;
}
//reset the temp
temp = number;
// make an array
int modulo; //modulo is equivalent to single digit of the number.
Integer[] numberArr = new Integer[counter];
for (int i = counter - 1; i >= 0; i--) {
modulo = temp % 10;
numberArr[i] = modulo;
temp /= 10;
}
return numberArr;
}
Output:
Digits Array:: [1, 1, 0, 0]
You might have multiple branch. And your current branch didn't set its upstream in remote.
Steps to fix this:
git checkout branch_name
git branch --set-upstream-to=origin/remote_branch_name local_branch_name
e.g.
// this set upstream of local branch develop to remote branch origin/develop,
git branch --set-upstream-to=origin/develop develop
After doing this, when you do git pull
, it pull from specified branch.
If you are using lodash, its even simpler with takeRight.
_.takeRight(arr, 5);
Sometimes if you are making a target via make files double check that all c files are named correctly with correct file structure.
I had the similar problem: EOF -warning and only part of data was loading with read.csv(). I tried the quotes="", but it only removed the EOF -warning.
But looking at the first row that was not loading, I found that there was a special character, an arrow ? (hexadecimal value 0x1A) in one of the cells. After deleting the arrow I got the data to load normally.
For those using TortoiseSVN, you can accomplish this by using the Repository Browser (it's labeled "Repo-browser" in the context menu.)
Find the branch folder you want to delete, right-click it, and select "Delete."
Enter your commit message, and you're done.
A minor extension of Andrea's answer above makes the helper method more useful when you may also want to capture modified enter presses (i.e. ctrl-enter or shift-enter). For example, this variant allows binding like:
$('textarea').enterKey(function() {$(this).closest('form').submit(); }, 'ctrl')
to submit a form when the user presses ctrl-enter with focus on that form's textarea.
$.fn.enterKey = function (fnc, mod) {
return this.each(function () {
$(this).keypress(function (ev) {
var keycode = (ev.keyCode ? ev.keyCode : ev.which);
if ((keycode == '13' || keycode == '10') && (!mod || ev[mod + 'Key'])) {
fnc.call(this, ev);
}
})
})
}
(see also Ctrl+Enter jQuery in TEXTAREA)
I had the same issue too, the problem is exacerbated with the download link now only working for Visual Studio 2017, and installing the package from the download link did nothing for VS2015, although it took up 5gB of space.
I looked everywhere on how to do it with the Nu Get package manager and I couldn't find the solution.
It turns out it's even simpler than that, all you have to do is right-click the project or solution in the Solution Explorer from within Visual Studio, and click "Install Missing Components"
The nabvar will collapse on small devices. The point of collapsing is defined by @grid-float-breakpoint in variables. By default this will by before 768px. For screens below the 768 pixels screen width, the navbar will look like:
It's possible to change the @grid-float-breakpoint in variables.less and recompile Bootstrap. When doing this you also will have to change @screen-xs-max in navbar.less. You will have to set this value to your new @grid-float-breakpoint -1. See also: https://github.com/twbs/bootstrap/pull/10465. This is needed to change navbar forms and dropdowns at the @grid-float-breakpoint to their mobile version too.
Adapting the PATH
should work. Just tried on my Git bash:
$ python --version
sh.exe": python: command not found
$ PATH=$PATH:/c/Python27/
$ python --version
Python 2.7.6
In particular, only provide the directory; don't specify the .exe
on the PATH
; and use slashes.
If your array is populated through an SQL Query consider reversing the result in MySQL, ie :
SELECT * FROM model_input order by creation_date desc
You have to install it explixitly using the python package manager as
You are trying to access non static field directly from static method which is not legal in java. balance is a non static field, so either access it using object reference or make it static.
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card_view="http://schemas.android.com/tools"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/addresses_confirm_root_view"
android:orientation="vertical">
<---In the xml root use the id--->
final LinearLayout activityRootView = view.findViewById(R.id.addresses_confirm_root_view); activityRootView.getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { @Override public void onGlobalLayout() { Rect r = new Rect(); //r will be populated with the coordinates of your view that area still visible. activityRootView.getWindowVisibleDisplayFrame(r);
int heightDiff = activityRootView.getRootView().getHeight() - r.height();
if (heightDiff > 0.25 * activityRootView.getRootView().getHeight()) {
// if more than 25% of the screen, its probably a keyboard...
onkeyboard();
} else {
//Keyboard not visible
offkeyboard();
}
}
});
using an custom dtype definition, what worked for me was:
import numpy
# define custom dtype
type1 = numpy.dtype([('freq', numpy.float64, 1), ('amplitude', numpy.float64, 1)])
# declare empty array, zero rows but one column
arr = numpy.empty([0,1],dtype=type1)
# store row data, maybe inside a loop
row = numpy.array([(0.0001, 0.002)], dtype=type1)
# append row to the main array
arr = numpy.row_stack((arr, row))
# print values stored in the row 0
print float(arr[0]['freq'])
print float(arr[0]['amplitude'])
I want to select the distinct values from one column 'GrondOfLucht' but they should be sorted in the order as given in the column 'sortering'. I cannot get the distinct values of just one column using
Select distinct GrondOfLucht,sortering
from CorWijzeVanAanleg
order by sortering
It will also give the column 'sortering' and because 'GrondOfLucht' AND 'sortering' is not unique, the result will be ALL rows.
use the GROUP to select the records of 'GrondOfLucht' in the order given by 'sortering
SELECT GrondOfLucht
FROM dbo.CorWijzeVanAanleg
GROUP BY GrondOfLucht, sortering
ORDER BY MIN(sortering)
I second jdk's answer: any public static member of any class of your application can be considered as a "global variable".
However, do note that this is an ASP.NET application, and as such, it's a multi-threaded context for your global variables. Therefore, you should use some locking mechanism when you update and/or read the data to/from these variables. Otherwise, you might get your data in a corrupted state.
If you haven't pushed your changes yet use git reset --soft [Hash for one commit]
to rollback to a specific commit. --soft
tells git to keep the changes being rolled back (i.e., mark the files as modified). --hard
tells git to delete the changes being rolled back.
Fundamentally you hadn't declare location which is what nginx uses to bind URL with resources.
server {
listen 80;
server_name localhost;
access_log logs/localhost.access.log main;
location / {
root /var/www/board/public;
index index.html index.htm index.php;
}
}
Platform-dependent, toolchain-dependent, ulimit-dependent, parameter-dependent.... It is not at all specified, and there are many static and dynamic properties that can influence it.
import swineflu
x = swineflu.fibo() # create an object `x` of class `fibo`, an instance of the class
x.f() # call the method `f()`, bound to `x`.
Here is a good tutorial to get started with classes in Python.
Here is a solution in plain and simple C++ code with no fancy function, use DMA to allocate a dynamic string array, and put data in array till you find a open space. please refer code below with comments. I hope it helps.
#include<bits/stdc++.h>
using namespace std;
int main()
{
string data="hello there how are you"; // a_size=5, char count =23
//getline(cin,data);
int count=0; // initialize a count to count total number of spaces in string.
int len=data.length();
for (int i = 0; i < (int)data.length(); ++i)
{
if(data[i]==' ')
{
++count;
}
}
//declare a string array +1 greater than the size
// num of space in string.
string* str = new string[count+1];
int i, start=0;
for (int index=0; index<count+1; ++index) // index array to increment index of string array and feed data.
{ string temp="";
for ( i = start; i <len; ++i)
{
if(data[i]!=' ') //increment temp stored word till you find a space.
{
temp=temp+data[i];
}else{
start=i+1; // increment i counter to next to the space
break;
}
}str[index]=temp;
}
//print data
for (int i = 0; i < count+1; ++i)
{
cout<<str[i]<<" ";
}
return 0;
}
just simply use as below and it will word wrap any long text within a table . No need to anything else
<td style="word-wrap: break-word;min-width: 160px;max-width: 160px;">long long comments</td>
One important function of the main
key is that it provides the path for your entry point. This is very helpful when working with nodemon
. If you work with nodemon
and you define the main
key in your package.json
as let say "main": "./src/server/app.js"
, then you can simply crank up the server with typing nodemon
in the CLI with root as pwd instead of nodemon ./src/server/app.js
.
Create the user with a password :
http://www.postgresql.org/docs/current/static/sql-createuser.html
CREATE USER name [ [ WITH ] option [ ... ] ]
where option can be:
SUPERUSER | NOSUPERUSER
| CREATEDB | NOCREATEDB
| CREATEROLE | NOCREATEROLE
| CREATEUSER | NOCREATEUSER
| INHERIT | NOINHERIT
| LOGIN | NOLOGIN
| REPLICATION | NOREPLICATION
| CONNECTION LIMIT connlimit
| [ ENCRYPTED | UNENCRYPTED ] PASSWORD 'password'
| VALID UNTIL 'timestamp'
| IN ROLE role_name [, ...]
| IN GROUP role_name [, ...]
| ROLE role_name [, ...]
| ADMIN role_name [, ...]
| USER role_name [, ...]
| SYSID uid
Then grant the user rights on a specific database :
http://www.postgresql.org/docs/current/static/sql-grant.html
Example :
grant all privileges on database db_name to someuser;
Your svn merge
syntax is wrong.
You want to checkout a working copy of trunk
and then use the svn merge --reintegrate
option:
$ pwd
/home/user/project-trunk
$ svn update # (make sure the working copy is up to date)
At revision <N>.
$ svn merge --reintegrate ^/project/branches/branch_1
--- Merging differences between repository URLs into '.':
U foo.c
U bar.c
U .
$ # build, test, verify, ...
$ svn commit -m "Merge branch_1 back into trunk!"
Sending .
Sending foo.c
Sending bar.c
Transmitting file data ..
Committed revision <N+1>.
See the SVN book chapter on merging for more details.
Note that at the time it was written, this was the right answer (and was accepted), but things have moved on. See the answer of topek, and http://subversion.apache.org/docs/release-notes/1.8.html#auto-reintegrate
C# - serialData is ReceivedEventHandler
in TextBox
.
SerialPort sData = sender as SerialPort;
string recvData = sData.ReadLine();
serialData.Invoke(new Action(() => serialData.Text = String.Concat(recvData)));
Now Visual Studio drops my lines. TextBox, of course, had all the correct options on.
Serial:
Serial.print(rnd);
Serial.( '\n' ); //carriage return
If the above methods don't work (as they didn't work on my Ubuntu 13.04 installation) try:
There are a number of alternative ways:
1) Run select-editor
select-editor
2) Manually edit the file: ~/.selected_editor
specifying your preferred editor. With this option you can specify editor parameters.
# Generated by /usr/bin/select-editor
SELECTED_EDITOR="/usr/bin/emacs -nw"
3) You can specify on the fly on the commandline with:
env VISUAL="emacs -nw" crontab -e
These are configurable variables in php.ini:
; with sane limits
xdebug.var_display_max_depth = 10
xdebug.var_display_max_children = 256
xdebug.var_display_max_data = 1024
; with no limits
; (maximum nesting is 1023)
xdebug.var_display_max_depth = -1
xdebug.var_display_max_children = -1
xdebug.var_display_max_data = -1
Of course, these may also be set at runtime via ini_set()
, useful if you don't want to modify php.ini and restart your web server but need to quickly inspect something more deeply.
ini_set('xdebug.var_display_max_depth', '10');
ini_set('xdebug.var_display_max_children', '256');
ini_set('xdebug.var_display_max_data', '1024');
Xdebug settings are explained in the official documentation.
- name: host
debug: msg="{{ item }}"
with_items:
- "{{ groups['tests'] }}"
This piece of code will give the message:
'10.112.84.122'
'10.112.84.124'
as groups['tests']
basically return a list of unique ip addresses ['10.112.84.122','10.112.84.124']
whereas groups['tomcat'][0]
returns 10.112.84.124
.
Make sure to paste the above code into onCreate() after your call to the super and the call to setContentView(). This small detail kept my hung up for awhile.
You seem to be unnecessarily setting properties on your ComboBox
. You can remove the DisplayMemberPath
and SelectedValuePath
properties which have different uses. It might be an idea for you to take a look at the Difference between SelectedItem, SelectedValue and SelectedValuePath post here for an explanation of these properties. Try this:
<ComboBox Name="cbxSalesPeriods"
ItemsSource="{Binding SalesPeriods}"
SelectedItem="{Binding SelectedSalesPeriod}"
IsSynchronizedWithCurrentItem="True"/>
Furthermore, it is pointless using your displayPeriod
property, as the WPF Framework would call the ToString
method automatically for objects that it needs to display that don't have a DataTemplate
set up for them explicitly.
UPDATE >>>
As I can't see all of your code, I cannot tell you what you are doing wrong. Instead, all I can do is to provide you with a complete working example of how to achieve what you want. I've removed the pointless displayPeriod
property and also your SalesPeriodVO
property from your class as I know nothing about it... maybe that is the cause of your problem??. Try this:
public class SalesPeriodV
{
private int month, year;
public int Year
{
get { return year; }
set
{
if (year != value)
{
year = value;
NotifyPropertyChanged("Year");
}
}
}
public int Month
{
get { return month; }
set
{
if (month != value)
{
month = value;
NotifyPropertyChanged("Month");
}
}
}
public override string ToString()
{
return String.Format("{0:D2}.{1}", Month, Year);
}
public virtual event PropertyChangedEventHandler PropertyChanged;
protected virtual void NotifyPropertyChanged(params string[] propertyNames)
{
if (PropertyChanged != null)
{
foreach (string propertyName in propertyNames) PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
PropertyChanged(this, new PropertyChangedEventArgs("HasError"));
}
}
}
Then I added two properties into the view model:
private ObservableCollection<SalesPeriodV> salesPeriods = new ObservableCollection<SalesPeriodV>();
public ObservableCollection<SalesPeriodV> SalesPeriods
{
get { return salesPeriods; }
set { salesPeriods = value; NotifyPropertyChanged("SalesPeriods"); }
}
private SalesPeriodV selectedItem = new SalesPeriodV();
public SalesPeriodV SelectedItem
{
get { return selectedItem; }
set { selectedItem = value; NotifyPropertyChanged("SelectedItem"); }
}
Then initialised the collection with your values:
SalesPeriods.Add(new SalesPeriodV() { Month = 3, Year = 2013 } );
SalesPeriods.Add(new SalesPeriodV() { Month = 4, Year = 2013 } );
And then data bound only these two properties to a ComboBox
:
<ComboBox ItemsSource="{Binding SalesPeriods}" SelectedItem="{Binding SelectedItem}" />
That's it... that's all you need for a perfectly working example. You should see that the display of the items comes from the ToString
method without your displayPeriod
property. Hopefully, you can work out your mistakes from this code example.
How about the simple:
constexpr char const* toString(bool b)
{
return b ? "true" : "false";
}
I solved this with one code line, as follow: In file index.php, at your template root, after this code line:
defined( '_JEXEC' ) or die( 'Restricted access' );
paste this line: ini_set ('display_errors', 'Off');
Don't worry, be happy...
posted by Jenio.
It's definitely conceivable but I am not sure we're there yet. In the meantime, I'd recommend using something like Silverlight with IIS Smooth Streaming. Silverlight is plugin-based, but it works on Windows/OSX/Linux. Some day the HTML5 <video>
element will be the way to go, but that will lack support for a little while.
The answer is quite simple, simply do this if you added the file directly from the resources.resx.
string textInResourceFile = fileNameSpace.Properties.Resources.fileName;
With that line of code, the text from the file is directly read from the file and put into the string variable.
As everyone else has mentioned it is better to use the "in" operator, it can also act on lists:
line = "This,is,a,sample,string"
lst = ['This', 'sample']
for i in lst:
i in line
>> True
>> True
How can we read data from a text file and store in a String Variable?
Err, read data from the file and store it in a String variable. It's just code. Not a real question so far.
Is it possible to pass the filename in a method and it would return the String which is the text from the file.
Yes it's possible. It's also a very bad idea. You should deal with the file a part at a time, for example a line at a time. Reading the entire file into memory before you process any of it adds latency; wastes memory; and assumes that the entire file will fit into memory. One day it won't. You don't want to do it this way.
Description:
there are 3 steps to run PHP code inside post or page.
In functions.php
file (in your theme) add new function
In functions.php
file (in your theme) register new shortcode which call your function:
add_shortcode( 'SHORCODE_NAME', 'FUNCTION_NAME' );
Example #1: just display text.
In functions:
function simple_function_1() {
return "Hello World!";
}
add_shortcode( 'own_shortcode1', 'simple_function_1' );
In post/page:
[own_shortcode1]
Effect:
Hello World!
Example #2: use for loop.
In functions:
function simple_function_2() {
$output = "";
for ($number = 1; $number < 10; $number++) {
// Append numbers to the string
$output .= "$number<br>";
}
return "$output";
}
add_shortcode( 'own_shortcode2', 'simple_function_2' );
In post/page:
[own_shortcode2]
Effect:
1
2
3
4
5
6
7
8
9
Example #3: use shortcode with arguments
In functions:
function simple_function_3($name) {
return "Hello $name";
}
add_shortcode( 'own_shortcode3', 'simple_function_3' );
In post/page:
[own_shortcode3 name="John"]
Effect:
Hello John
Example #3 - without passing arguments
In post/page:
[own_shortcode3]
Effect:
Hello
I got the same error. In the terminal when I typed "python filename.py", with this command, python2 was tring to run python3 code, because the is written python3. It runs correctly when I type "python3 filename.py" in the terminal. I hope this works for you too.
you can use map function. this is worked for me.
db.Sensors
.findAll({
where: { nodeid: node.nodeid }
})
.map(el => el.get({ plain: true }))
.then((rows)=>{
response.json( rows )
});
I think this method produces very good results:
<!-- Drop Shadow Stack -->
<item>
<shape>
<padding
android:top="1dp"
android:right="1dp"
android:bottom="1dp"
android:left="1dp"/>
<solid android:color="#00CCCCCC"/>
</shape>
</item>
<item>
<shape>
<padding
android:top="1dp"
android:right="1dp"
android:bottom="1dp"
android:left="1dp"/>
<solid android:color="#10CCCCCC"/>
</shape>
</item>
<item>
<shape>
<padding
android:top="1dp"
android:right="1dp"
android:bottom="1dp"
android:left="1dp"/>
<solid android:color="#20CCCCCC"/>
</shape>
</item>
<item>
<shape>
<padding
android:top="1dp"
android:right="1dp"
android:bottom="1dp"
android:left="1dp"/>
<solid android:color="#30CCCCCC"/>
</shape>
</item>
<item>
<shape>
<padding
android:top="1dp"
android:right="1dp"
android:bottom="1dp"
android:left="1dp"/>
<solid android:color="#50CCCCCC"/>
</shape>
</item>
<item>
<shape android:shape="rectangle">
<stroke android:color="#CCC" android:width="1dp"/>
<solid android:color="#FFF" />
<corners android:radius="2dp" />
</shape>
</item>
Along the lines of ggovan's answer, I do this as follows:
/**
* Provides various high-order functions.
*/
public final class F {
/**
* When the returned {@code Function} is passed as an argument to
* {@link Stream#flatMap}, the result is a stream of instances of
* {@code cls}.
*/
public static <E> Function<Object, Stream<E>> instancesOf(Class<E> cls) {
return o -> cls.isInstance(o)
? Stream.of(cls.cast(o))
: Stream.empty();
}
}
Using this helper function:
Stream.of(objects).flatMap(F.instancesOf(Client.class))
.map(Client::getId)
.forEach(System.out::println);
"You keep using that word. I do not think it means what you think it means." — Inigo Montoya
The timestamp has absolutely no relationship to time as marc_s originally said.
declare @Test table (
TestId int identity(1,1) primary key clustered
,Ts timestamp
,CurrentDt datetime default getdate()
,Something varchar(max)
)
insert into @Test (Something)
select name from sys.tables
waitfor delay '00:00:10'
insert into @Test (Something)
select name from sys.tables
select * from @Test
Notice in the output that Ts (hex) increments by one for each record, but the actual time has a gap of 10 seconds. If it were related to time then there would be a gap in the timestamp to correspond with the difference in the time.
Only checked
and checked="checked"
are valid. Your other options depend on error recovery in browsers.
checked="yes"
and checked="true"
are particularly bad as they imply that checked="no"
and checked="false"
will set the default state to be unchecked … which they will not.
One advantage to the second method is that you can wrap it with Collections.unmodifiableMap()
to guarantee that nothing is going to update the collection later:
private static final Map<Integer, String> CONSTANT_MAP =
Collections.unmodifiableMap(new HashMap<Integer, String>() {{
put(1, "one");
put(2, "two");
}});
// later on...
CONSTANT_MAP.put(3, "three"); // going to throw an exception!
The easiest and the most effective way would be to allow eclipse to generate and override the equals and hashcode method. Just select the attributes to be checked for duplicates when prompted and you should be all set.
Also once the list is ready, put it into a Set and you have the duplicates gone.
If your package.json looks something like the following:
...
"devDependencies": {
"babel": "^6.5.2",
"babel-eslint": "^6.0.4",
"babel-polyfill": "^6.8.0",
"babel-preset-es2015": "^6.6.0",
"babelify": "^7.3.0",
...
And you get the Cannot find module 'babel/polyfill'
error message, then you probably just need to change your import statement FROM:
import "babel/polyfill";
TO:
import "babel-polyfill";
And make sure it comes before any other import
statement (not necessarily at the entry point of your application).
Reference: https://babeljs.io/docs/usage/polyfill/
After a lot of digging around I finally ended up downloading the source code of the recovery section of Android. Turns out you can actually send commands to the recovery.
* The arguments which may be supplied in the recovery.command file:
* --send_intent=anystring - write the text out to recovery.intent
* --update_package=path - verify install an OTA package file
* --wipe_data - erase user data (and cache), then reboot
* --wipe_cache - wipe cache (but not user data), then reboot
* --set_encrypted_filesystem=on|off - enables / diasables encrypted fs
Those are the commands you can use according to the one I found but that might be different for modded files. So using adb you can do this:
adb shell
recovery --wipe_data
Using --wipe_data seemed to do what I was looking for which was handy although I have not fully tested this as of yet.
EDIT:
For anyone still using this topic, these commands may change based on which recovery you are using. If you are using Clockword recovery, these commands should still work. You can find other commands in /cache/recovery/command
For more information please see here: https://github.com/CyanogenMod/android_bootable_recovery/blob/cm-10.2/recovery.c
'a' in x
and a quick search reveals some nice information about it: http://docs.python.org/3/tutorial/datastructures.html#dictionaries
This is what finally worked for me:
<xsd:element name="bar">
<xsd:complexType>
<xsd:sequence>
<!-- Permit any of these tags in any order in any number -->
<xsd:choice minOccurs="0" maxOccurs="unbounded">
<xsd:element name="child1" type="xsd:string" />
<xsd:element name="child2" type="xsd:string" />
<xsd:element name="child3" type="xsd:string" />
</xsd:choice>
</xsd:sequence>
</xsd:complexType>
</xsd:element>
osascript -e "tell application \"System Events\" to keystroke \"w\" using command down"
This simulates a CMD + w keypress.
If you want Terminal to quit completely you can use:
osascript -e "tell application \"System Events\" to keystroke \"q\" using command down"
This doesn't give any errors and makes the Terminal stop cleanly.
@Rollerball is right. The wait()
is called, so that the thread can wait for some condition to occur when this wait()
call happens, the thread is forced to give up its lock.
To give up something, you need to own it first. Thread needs to own the lock first.
Hence the need to call it inside a synchronized
method/block.
Yes, I do agree with all the above answers regarding the potential damages/inconsistencies if you did not check the condition within synchronized
method/block. However as @shrini1000 has pointed out, just calling wait()
within synchronized block will not avert this inconsistency from happening.
This can be accomplished using the brand new CSS display: grid
(browser support)
HTML:
<div class='container'>
<label for="dummy1">title for dummy1:</label>
<input id="dummy1" name="dummy1" value="dummy1">
<label for="dummy2">longer title for dummy2:</label>
<input id="dummy2" name="dummy2" value="dummy2">
<label for="dummy3">even longer title for dummy3:</label>
<input id="dummy3" name="dummy3" value="dummy3">
</div>
CSS:
.container {
display: grid;
grid-template-columns: 1fr 3fr;
}
When using css grid, by default elements are laid out column by column then row by row. The grid-template-columns
rule creates two grid columns, one which takes up 1/4 of the total horizontal space and the other which takes up 3/4 of the horizontal space. This creates the desired effect.
Microsoft recently modified the reflection API rendering most of these answers obsolete. The following should work on modern platforms (including Xamarin.Forms and UWP):
obj.GetType().GetTypeInfo().GetDeclaredMethod("MethodName").Invoke(obj, yourArgsHere);
Or as an extension method:
public static object InvokeMethod<T>(this T obj, string methodName, params object[] args)
{
var type = typeof(T);
var method = type.GetTypeInfo().GetDeclaredMethod(methodName);
return method.Invoke(obj, args);
}
Note:
If the desired method is in a superclass of obj
the T
generic must be explicitly set to the type of the superclass.
If the method is asynchronous you can use await (Task) obj.InvokeMethod(…)
.
it is a known issue
I think the workaround should be set it as
.card-img-top {
width: 100%;
}
unless you have an explicit reason to choose the Apache HttpClient, you should prefer java.net.URLConnection. you can find plenty of examples of how to use it on the web.
we've also improved the Android documentation since your original post: http://developer.android.com/reference/java/net/HttpURLConnection.html
and we've talked about the trade-offs on the official blog: http://android-developers.blogspot.com/2011/09/androids-http-clients.html
a simple example under a multi-class setting to illustrate
suppose you have 4 classes (onehot encoded) and below is just one prediction
true_label = [0,1,0,0] predicted_label = [0,0,1,0]
when using categorical_crossentropy, the accuracy is just 0 , it only cares about if you get the concerned class right.
however when using binary_crossentropy, the accuracy is calculated for all classes, it would be 50% for this prediction. and the final result will be the mean of the individual accuracies for both cases.
it is recommended to use categorical_crossentropy for multi-class(classes are mutually exclusive) problem but binary_crossentropy for multi-label problem.
This is turning out to be a surprisingly tricky question.
I would recommend using Array.Reverse for most cases as it is coded natively and it is very simple to maintain and understand.
It seems to outperform StringBuilder in all the cases I tested.
public string Reverse(string text)
{
if (text == null) return null;
// this was posted by petebob as well
char[] array = text.ToCharArray();
Array.Reverse(array);
return new String(array);
}
There is a second approach that can be faster for certain string lengths which uses Xor.
public static string ReverseXor(string s)
{
if (s == null) return null;
char[] charArray = s.ToCharArray();
int len = s.Length - 1;
for (int i = 0; i < len; i++, len--)
{
charArray[i] ^= charArray[len];
charArray[len] ^= charArray[i];
charArray[i] ^= charArray[len];
}
return new string(charArray);
}
Note If you want to support the full Unicode UTF16 charset read this. And use the implementation there instead. It can be further optimized by using one of the above algorithms and running through the string to clean it up after the chars are reversed.
Here is a performance comparison between the StringBuilder, Array.Reverse and Xor method.
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
namespace ConsoleApplication4
{
class Program
{
delegate string StringDelegate(string s);
static void Benchmark(string description, StringDelegate d, int times, string text)
{
Stopwatch sw = new Stopwatch();
sw.Start();
for (int j = 0; j < times; j++)
{
d(text);
}
sw.Stop();
Console.WriteLine("{0} Ticks {1} : called {2} times.", sw.ElapsedTicks, description, times);
}
public static string ReverseXor(string s)
{
char[] charArray = s.ToCharArray();
int len = s.Length - 1;
for (int i = 0; i < len; i++, len--)
{
charArray[i] ^= charArray[len];
charArray[len] ^= charArray[i];
charArray[i] ^= charArray[len];
}
return new string(charArray);
}
public static string ReverseSB(string text)
{
StringBuilder builder = new StringBuilder(text.Length);
for (int i = text.Length - 1; i >= 0; i--)
{
builder.Append(text[i]);
}
return builder.ToString();
}
public static string ReverseArray(string text)
{
char[] array = text.ToCharArray();
Array.Reverse(array);
return (new string(array));
}
public static string StringOfLength(int length)
{
Random random = new Random();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < length; i++)
{
sb.Append(Convert.ToChar(Convert.ToInt32(Math.Floor(26 * random.NextDouble() + 65))));
}
return sb.ToString();
}
static void Main(string[] args)
{
int[] lengths = new int[] {1,10,15,25,50,75,100,1000,100000};
foreach (int l in lengths)
{
int iterations = 10000;
string text = StringOfLength(l);
Benchmark(String.Format("String Builder (Length: {0})", l), ReverseSB, iterations, text);
Benchmark(String.Format("Array.Reverse (Length: {0})", l), ReverseArray, iterations, text);
Benchmark(String.Format("Xor (Length: {0})", l), ReverseXor, iterations, text);
Console.WriteLine();
}
Console.Read();
}
}
}
Here are the results:
26251 Ticks String Builder (Length: 1) : called 10000 times.
33373 Ticks Array.Reverse (Length: 1) : called 10000 times.
20162 Ticks Xor (Length: 1) : called 10000 times.
51321 Ticks String Builder (Length: 10) : called 10000 times.
37105 Ticks Array.Reverse (Length: 10) : called 10000 times.
23974 Ticks Xor (Length: 10) : called 10000 times.
66570 Ticks String Builder (Length: 15) : called 10000 times.
26027 Ticks Array.Reverse (Length: 15) : called 10000 times.
24017 Ticks Xor (Length: 15) : called 10000 times.
101609 Ticks String Builder (Length: 25) : called 10000 times.
28472 Ticks Array.Reverse (Length: 25) : called 10000 times.
35355 Ticks Xor (Length: 25) : called 10000 times.
161601 Ticks String Builder (Length: 50) : called 10000 times.
35839 Ticks Array.Reverse (Length: 50) : called 10000 times.
51185 Ticks Xor (Length: 50) : called 10000 times.
230898 Ticks String Builder (Length: 75) : called 10000 times.
40628 Ticks Array.Reverse (Length: 75) : called 10000 times.
78906 Ticks Xor (Length: 75) : called 10000 times.
312017 Ticks String Builder (Length: 100) : called 10000 times.
52225 Ticks Array.Reverse (Length: 100) : called 10000 times.
110195 Ticks Xor (Length: 100) : called 10000 times.
2970691 Ticks String Builder (Length: 1000) : called 10000 times.
292094 Ticks Array.Reverse (Length: 1000) : called 10000 times.
846585 Ticks Xor (Length: 1000) : called 10000 times.
305564115 Ticks String Builder (Length: 100000) : called 10000 times.
74884495 Ticks Array.Reverse (Length: 100000) : called 10000 times.
125409674 Ticks Xor (Length: 100000) : called 10000 times.
It seems that Xor can be faster for short strings.
SELECT CASE WHEN field IS NULL THEN 'Empty' ELSE field END AS field_alias
Or more idiomatic:
SELECT coalesce(field, 'Empty') AS field_alias
This answer is here: Python: how to suppress logging statements from third party libraries?
You can leave the default logging level for basicConfig, and then you set the DEBUG level when you get the logger for your module.
logging.basicConfig(format='%(asctime)s %(module)s %(filename)s:%(lineno)s - %(message)s')
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
logger.debug("my debug message")
Make #site_nav_global_primary
positioned as fixed and set width to 100 % and desired height.
after a few days of wondering, my solution was that I forgot to use @Test annotation before the @BeforeEach
There are three distinct aspects in a multilingual site:
While they all interconnected in different ways, from CMS point of view they are managed using different UI elements and stored differently. You seem to be confident in your implementation and understanding of the first two. The question was about the latter aspect - "URL Translation? Should we do this or not? and in what way?"
A very important thing is, don't get fancy with IDN. Instead favor transliteration (also: transcription and romanization). While at first glance IDN seems viable option for international URLs, it actually does not work as advertised for two reasons:
'?'
or 'ž'
into '%D1%87'
and '%C5%BE'
I actually tried to IDN approach few years ago in a Yii based project (horrible framework, IMHO). I encountered both of the above mentioned problems before scraping that solution. Also, I suspect that it might be an attack vector.
Basically you have two choices, that could be abstracted as:
http://site.tld/[:query]
: where [:query]
determines both language and content choice
http://site.tld/[:language]/[:query]
: where [:language]
part of URL defines the choice of language and [:query]
is used only to identify the content
Lets say you pick http://site.tld/[:query]
.
In that case you have one primary source of language: the content of [:query]
segment; and two additional sources:
$_COOKIE['lang']
for that particular browserFirst, you need to match the query to one of defined routing patterns (if your pick is Laravel, then read here). On successful match of pattern you then need to find the language.
You would have to go through all the segments of the pattern. Find the potential translations for all of those segments and determine which language was used. The two additional sources (cookie and header) would be used to resolve routing conflicts, when (not "if") they arise.
Take for example: http://site.tld/blog/novinka
.
That's transliteration of "????, ???????"
, that in English means approximately "blog", "latest"
.
As you can already notice, in Russian "????" will be transliterated as "blog". Which means that for the first part of [:query]
you (in the best case scenario) will end up with ['en', 'ru']
list of possible languages. Then you take next segment - "novinka". That might have only one language on the list of possibilities: ['ru']
.
When the list has one item, you have successfully found the language.
But if you end up with 2 (example: Russian and Ukrainian) or more possibilities .. or 0 possibilities, as a case might be. You will have to use cookie and/or header to find the correct option.
And if all else fails, you pick the site's default language.
The alternative is to use URL, that can be defined as http://site.tld/[:language]/[:query]
. In this case, when translating query, you do not need to guess the language, because at that point you already know which to use.
There is also a secondary source of language: the cookie value. But here there is no point in messing with Accept-Language header, because you are not dealing with unknown amount of possible languages in case of "cold start" (when user first time opens site with custom query).
Instead you have 3 simple, prioritized options:
[:language]
segment is set, use it$_COOKIE['lang']
is set, use itWhen you have the language, you simply attempt to translate the query, and if translation fails, use the "default value" for that particular segment (based on routing results).
Yes, technically you can combine both approaches, but that would complicate the process and only accommodate people who want to manually change URL of http://site.tld/en/news
to http://site.tld/de/news
and expect the news page to change to German.
But even this case could probable be mitigated using cookie value (which would contain information about previous choice of language), to implement with less magic and hope.
As you might already guessed, I would recommend http://site.tld/[:language]/[:query]
as the more sensible option.
Also in real word situation you would have 3rd major part in URL: "title". As in name of the product in online shop or headline of article in news site.
Example: http://site.tld/en/news/article/121415/EU-as-global-reserve-currency
In this case '/news/article/121415'
would be the query, and the 'EU-as-global-reserve-currency'
is title. Purely for SEO purposes.
Kinda, but not by default.
I am not too familiar with it, but from what I have seen, Laravel uses simple pattern-based routing mechanism. To implement multilingual URLs you will probably have to extend core class(es), because multilingual routing need access to different forms of storage (database, cache and/or configuration files).
As a result of all you would end up with two valuable pieces of information: current language and translated segments of query. These values then can be used to dispatch to the class(es) which will produce the result.
Basically, the following URL: http://site.tld/ru/blog/novinka
(or the version without '/ru'
) gets turned into something like
$parameters = [
'language' => 'ru',
'classname' => 'blog',
'method' => 'latest',
];
Which you just use for dispatching:
$instance = new {$parameter['classname']};
$instance->{'get'.$parameters['method']}( $parameters );
.. or some variation of it, depending on the particular implementation.
I know the solution employing printing of new lines isn't much supported, but if all else fails, why not? Especially where one is operating in an environment where someone else is likely to be able to see the screen, yet not able to keylog. One potential solution then, is the following alias:
alias c="printf '\r\n%.0s' {1..50}"
Then, to "clear" away the current contents of the screen (or rather, hide them), just type c+Enter
at the terminal.
For me it only fetched new dependencies from Docker Hub with both --no-cache
and --pull
(which are available for docker-compose build
.
# other steps before rebuild
docker-compose build --no-cache --pull nginx # rebuild nginx
# other steps after rebuild, e.g. up (see other answers)
Try this,to retrieve all files inside folder and sub-folder
public static void main(String[]args)
{
File curDir = new File(".");
getAllFiles(curDir);
}
private static void getAllFiles(File curDir) {
File[] filesList = curDir.listFiles();
for(File f : filesList){
if(f.isDirectory())
getAllFiles(f);
if(f.isFile()){
System.out.println(f.getName());
}
}
}
To retrieve files/folder only
public static void main(String[]args)
{
File curDir = new File(".");
getAllFiles(curDir);
}
private static void getAllFiles(File curDir) {
File[] filesList = curDir.listFiles();
for(File f : filesList){
if(f.isDirectory())
System.out.println(f.getName());
if(f.isFile()){
System.out.println(f.getName());
}
}
}
If the date String does not include any value for hours, minutes and etc you cannot directly convert this to a LocalDateTime
. You can only convert it to a LocalDate
, because the string only represent the year,month and date components it would be the correct thing to do.
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyyMMdd");
LocalDate ld = LocalDate.parse("20180306", dtf); // 2018-03-06
Anyway you can convert this to LocalDateTime
.
DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyyMMdd");
LocalDate ld = LocalDate.parse("20180306", dtf);
LocalDateTime ldt = LocalDateTime.of(ld, LocalTime.of(0,0)); // 2018-03-06T00:00
By dynamically allocating a Movie object with new Movie()
, you get a pointer to the new object. You do not need a second vector for the movies, just store the pointers and you can access them. Like Brian wrote, the vector would be defined as
std::vector<Movie *> movies
But be aware that the vector will not delete your objects afterwards, which will result in a memory leak. It probably doesn't matter for your homework, but normally you should delete all pointers when you don't need them anymore.
.mouseover()
.hover()
Bind one or two handlers
to the matched elements, to be executed when the mouse pointer
enters and leaves the elements.
Calling $(selector).hover(handlerIn, handlerOut)
is shorthand for:
$(selector).mouseenter(handlerIn).mouseleave(handlerOut);
Bind an event handler to be fired when the mouse enters an element, or trigger that handler on an element.
mouseover
fires when the pointer moves into the child element as
well, while mouseenter
fires only when the pointer moves into the
bound element.
Because of this, .mouseover()
is not the same as .hover()
, for the same reason .mouseover()
is not the same as .mouseenter()
.
$('selector').mouseover(over_function) // may fire multiple times
// enter and exit functions only called once per element per entry and exit
$('selector').hover(enter_function, exit_function)
Eclipse typically restarts after a plugin is installed. They do this using a wrapper eclipse.exe (launcher app) for windows. This application execs the core eclipse runner jar and if the eclipse java application terminates with a relaunch code, eclipse.exe restarts the workbench. You can build a similar bit of native code, shell script or another java code wrapper to achieve the restart.
you could also use display: table
insted of tables. Divs are way more flexible than tables.
Example:
.table {_x000D_
display: table;_x000D_
border-collapse: collapse;_x000D_
}_x000D_
_x000D_
.table .table-row {_x000D_
display: table-row;_x000D_
}_x000D_
_x000D_
.table .table-cell {_x000D_
display: table-cell;_x000D_
text-align: left;_x000D_
vertical-align: top;_x000D_
border: 1px solid black;_x000D_
}
_x000D_
<div class="table">_x000D_
<div class="table-row">_x000D_
<div class="table-cell">test</div>_x000D_
<div class="table-cell">test1123</div>_x000D_
</div>_x000D_
<div class="table-row">_x000D_
<div class="table-cell">test</div>_x000D_
<div class="table-cell">test123</div>_x000D_
</div>_x000D_
</div>
_x000D_
What is the difference?
From the documentation:
- - (Boolean)
instance_of?(class)
- Returns
true
ifobj
is an instance of the given class.
and:
- - (Boolean)
is_a?(class)
- (Boolean)kind_of?(class)
- Returns
true
ifclass
is the class ofobj
, or ifclass
is one of the superclasses ofobj
or modules included inobj
.
If that is unclear, it would be nice to know what exactly is unclear, so that the documentation can be improved.
When should I use which?
Never. Use polymorphism instead.
Why are there so many of them?
I wouldn't call two "many". There are two of them, because they do two different things.
Thanks to all, for me this solution worked: Magento 404 page in backoffice after login
Update PHP 7.4
Curly brace access syntax is deprecated since PHP 7.4
Update 2019
Moving on to the best practices of OOPS, @MrTrick's answer must be marked as correct, although my answer provides a hacked solution its not the best method.
Simply iterate its using {}
Example:
$videos{0}->id
This way your object is not destroyed and you can easily iterate through object.
For PHP 5.6 and below use this
$videos{0}['id']
Both array() and the stdClass objects can be accessed using the
current()
key()
next()
prev()
reset()
end()
functions.
So, if your object looks like
object(stdClass)#19 (3) {
[0]=>
object(stdClass)#20 (22) {
["id"]=>
string(1) "123"
etc...
Then you can just do;
$id = reset($obj)->id; //Gets the 'id' attr of the first entry in the object
If you need the key for some reason, you can do;
reset($obj); //Ensure that we're at the first element
$key = key($obj);
Hope that works for you. :-) No errors, even in super-strict mode, on PHP 5.4
2022 Update:
After PHP 7.4, using current()
, end()
, etc functions on objects is deprecated.
In newer versions of PHP, use the ArrayIterator class:
$objIterator = new ArrayIterator($obj);
$id = $objIterator->current()->id; // Gets the 'id' attr of the first entry in the object
$key = $objIterator->key(); // and gets the key
git checkout -b NEW_BRANCH_NAME COMMIT_ID
This will create a new branch called 'NEW_BRANCH_NAME' and check it out.
("check out" means "to switch to the branch")
git branch NEW_BRANCH_NAME COMMIT_ID
This just creates the new branch without checking it out.
in the comments many people seem to prefer doing this in two steps. here's how to do so in two steps:
git checkout COMMIT_ID
# you are now in the "detached head" state
git checkout -b NEW_BRANCH_NAME
Just a small addition to Jeff Bowman's excellent answer, as I found this question when searching for a solution to one of my own problems:
If a call to a method matches more than one mock's when
trained calls, the order of the when
calls is important, and should be from the most wider to the most specific. Starting from one of Jeff's examples:
when(foo.quux(anyInt(), anyInt())).thenReturn(true);
when(foo.quux(anyInt(), eq(5))).thenReturn(false);
is the order that ensures the (probably) desired result:
foo.quux(3 /*any int*/, 8 /*any other int than 5*/) //returns true
foo.quux(2 /*any int*/, 5) //returns false
If you inverse the when calls then the result would always be true
.
To get the type name as a string in Swift 4 (I haven't checked the earlier versions), just use string interpolation:
"\(type(of: myViewController))"
You can use .self
on a type itself, and the type(of:_)
function on an instance:
// Both constants will have "UIViewController" as their value
let stringFromType = "\(UIViewController.self)"
let stringFromInstance = "\(type(of: UIViewController()))"
If you don't need to support IE7, the following is a great, concise hack:
JSON.parse(JSON.stringify(new Date()))
The AngularJS Bootstrap website hasn't been updated with the latest documentation. About 3 months ago pkozlowski-opensource authored a change to separate out $modal from $dialog commit is below:
https://github.com/angular-ui/bootstrap/commit/d7a48523e437b0a94615350a59be1588dbdd86bd
In that commit he added new documentation for $modal, which can be found below:
Hope this helps!
The CSS below stops users from being able to select text.
-webkit-user-select: none; /* Safari */
-moz-user-select: none; /* Firefox */
-ms-user-select: none; /* IE10+/Edge */
user-select: none; /* Standard */
To target IE9 downwards the html attribute unselectable
must be used instead:
<p unselectable="on">Test Text</p>
<style type="text/css">
#warning-message { display: none; }
@media only screen and (orientation:portrait){
#wrapper { display:none; }
#warning-message { display:block; }
}
@media only screen and (orientation:landscape){
#warning-message { display:none; }
}
</style>
....
<div id="wrapper">
<!-- your html for your website -->
</div>
<div id="warning-message">
this website is only viewable in landscape mode
</div>
You have no control over the user moving the orientation however you can at least message them. This example will hide the wrapper if in portrait mode and show the warning message and then hide the warning message in landscape mode and show the portrait.
I don't think this answer is any better than @Golmaal , only a compliment to it. If you like this answer, make sure to give @Golmaal the credit.
Update
I've been working with Cordova a lot recently and it turns out you CAN control it when you have access to the native features.
Another Update
So after releasing Cordova it is really terrible in the end. It is better to use something like React Native if you want JavaScript. It is really amazing and I know it isn't pure web but the pure web experience on mobile kind of failed.
It appears the default setting for Adobe Reader X is for the toolbars not to be shown by default unless they are explicitly turned on by the user. And even when I turn them back on during a session, they don't show up automatically next time. As such, I suspect you have a preference set contrary to the default.
The state you desire, with the top and left toolbars not shown, is called "Read Mode". If you right-click on the document itself, and then click "Page Display Preferences" in the context menu that is shown, you'll be presented with the Adobe Reader Preferences dialog. (This is the same dialog you can access by opening the Adobe Reader application, and selecting "Preferences" from the "Edit" menu.) In the list shown in the left-hand column of the Preferences dialog, select "Internet". Finally, on the right, ensure that you have the "Display in Read Mode by default" box checked:
You can also turn off the toolbars temporarily by clicking the button at the right of the top toolbar that depicts arrows pointing to opposing corners:
Finally, if you have "Display in Read Mode by default" turned off, but want to instruct the page you're loading not to display the toolbars (i.e., override the user's current preferences), you can append the following to the URL:
#toolbar=0&navpanes=0
So, for example, the following code will disable both the top toolbar (called "toolbar") and the left-hand toolbar (called "navpane"). However, if the user knows the keyboard combination (F8, and perhaps other methods as well), they will still be able to turn them back on.
string url = @"http://www.domain.com/file.pdf#toolbar=0&navpanes=0";
this._WebBrowser.Navigate(url);
You can read more about the parameters that are available for customizing the way PDF files open here on Adobe's developer website.
Open a command prompt window. If you have a default instance of SQL Server already running, run the following command on the command prompt to stop the SQL Server service:
net stop mssqlserver
Now go to the directory where SQL server is installed. The directory can for instance be one of these:
C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Binn
C:\Program Files\Microsoft SQL Server\MSSQL13.MSSQLSERVER\MSSQL\Binn
Figure out your MSSQL directory and CD
into it as such:
CD C:\Program Files\Microsoft SQL Server\MSSQL10_50.MSSQLSERVER\MSSQL\Binn
Now run the following command to start SQL Server in single user mode. As
SQLCMD
is being specified, only one SQLCMD
connection can be made (from another command prompt window).
sqlservr -m"SQLCMD"
Now, open another command prompt window as the same user as the one that started SQL Server in single user mode above, and in it, run:
sqlcmd
And press enter. Now you can execute SQL statements against the SQL Server instance running in single user mode:
create login [<<DOMAIN\USERNAME>>] from windows;
-- For older versions of SQL Server:
EXEC sys.sp_addsrvrolemember @loginame = N'<<DOMAIN\USERNAME>>', @rolename = N'sysadmin';
-- For newer versions of SQL Server:
ALTER SERVER ROLE [sysadmin] ADD MEMBER [<<DOMAIN\USERNAME>>];
GO
UPDATED
Do not forget a semicolon after ALTER SERVER ROLE [sysadmin] ADD MEMBER [<<DOMAIN\USERNAME>>];
and do not add extra semicolon after GO
or the command never executes.
You could use the date
command to get the current time before and after performing the work to be timed and calculate the difference like this:
#!/bin/bash
# Get time as a UNIX timestamp (seconds elapsed since Jan 1, 1970 0:00 UTC)
T="$(date +%s)"
# Do some work here
sleep 2
T="$(($(date +%s)-T))"
echo "Time in seconds: ${T}"
printf "Pretty format: %02d:%02d:%02d:%02d\n" "$((T/86400))" "$((T/3600%24))" "$((T/60%60))" "$((T%60))""
Notes: $((...)) can be used for basic arithmetic in bash – caution: do not put spaces before a minus - as this might be interpreted as a command-line option.
See also: http://tldp.org/LDP/abs/html/arithexp.html
EDIT:
Additionally, you may want to take a look at sed to search and extract substrings from the output generated by time.
EDIT:
Example for timing with milliseconds (actually nanoseconds but truncated to milliseconds here). Your version of date
has to support the %N
format and bash
should support large numbers.
# UNIX timestamp concatenated with nanoseconds
T="$(date +%s%N)"
# Do some work here
sleep 2
# Time interval in nanoseconds
T="$(($(date +%s%N)-T))"
# Seconds
S="$((T/1000000000))"
# Milliseconds
M="$((T/1000000))"
echo "Time in nanoseconds: ${T}"
printf "Pretty format: %02d:%02d:%02d:%02d.%03d\n" "$((S/86400))" "$((S/3600%24))" "$((S/60%60))" "$((S%60))" "${M}"
DISCLAIMER:
My original version said
M="$((T%1000000000/1000000))"
but this was edited out because it apparently did not work for some people whereas the new version reportedly did. I did not approve of this because I think that you have to use the remainder only but was outvoted.
Choose whatever fits you.
You can use TreeMap
which will store values in sorted form.
Map <String, String> map = new TreeMap <String, String>();
As has been mentioned, you may run into several issues if you use ISNUMERIC
:
-- Incorrectly gives 0:
SELECT CASE WHEN ISNUMERIC('-') = 1 THEN CAST('-' AS INT) END
-- Error (conversion failure):
SELECT CASE WHEN ISNUMERIC('$') = 1 THEN CAST('$' AS INT) END
SELECT CASE WHEN ISNUMERIC('4.4') = 1 THEN CAST('4.4' AS INT) END
SELECT CASE WHEN ISNUMERIC('1,300') = 1 THEN CAST('1,300' AS INT) END
-- Error (overflow):
SELECT CASE WHEN ISNUMERIC('9999999999') = 1 THEN CAST('9999999999' AS INT) END
If you want a reliable conversion, you'll need to code one yourself.
Update: My new recommendation would be to use an intermediary test conversion to FLOAT
to validate the number. This approach is based on adrianm's comment. The logic can be defined as an inline table-valued function:
CREATE FUNCTION TryConvertInt (@text NVARCHAR(MAX))
RETURNS TABLE
AS
RETURN
(
SELECT
CASE WHEN ISNUMERIC(@text + '.e0') = 1 THEN
CASE WHEN CONVERT(FLOAT, @text) BETWEEN -2147483648 AND 2147483647
THEN CONVERT(INT, @text)
END
END AS [Result]
)
Some tests:
SELECT [Conversion].[Result]
FROM ( VALUES
( '1234' ) -- 1234
, ( '1,234' ) -- NULL
, ( '1234.0' ) -- NULL
, ( '-1234' ) -- -1234
, ( '$1234' ) -- NULL
, ( '1234e10' ) -- NULL
, ( '1234 5678' ) -- NULL
, ( '123-456' ) -- NULL
, ( '1234.5' ) -- NULL
, ( '123456789000000' ) -- NULL
, ( 'N/A' ) -- NULL
, ( '-' ) -- NULL
, ( '$' ) -- NULL
, ( '4.4' ) -- NULL
, ( '1,300' ) -- NULL
, ( '9999999999' ) -- NULL
, ( '00000000000000001234' ) -- 1234
, ( '212110090000000235698741' ) -- NULL
) AS [Source] ([Text])
OUTER APPLY TryConvertInt ([Source].[Text]) AS [Conversion]
Results are similar to Joseph Sturtevant's answer, with the following main differences:
.
or ,
in order to mimic the behaviour of native INT
conversions. '1,234'
and '1234.0'
return NULL
.'00000000000000001234'
evaluates to 12
. Increasing the parameter length would result in errors on numbers that overflow BIGINT
, such as BBANs (basic bank account numbers) like '212110090000000235698741'
.Withdrawn: The approach below is no longer recommended, as is left just for reference.
The snippet below works on non-negative integers. It checks that your string does not contain any non-digit characters, is not empty, and does not overflow (by exceeding the maximum value for the int
type). However, it also gives NULL
for valid integers whose length exceeds 10 characters due to leading zeros.
SELECT
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9
OR LEN(@text) = 10 AND @text <= '2147483647'
THEN CAST (@text AS INT)
END
END
If you want to support any number of leading zeros, use the below. The nested CASE
statements, albeit unwieldy, are required to promote short-circuit evaluation and reduce the likelihood of errors (arising, for example, from passing a negative length to LEFT
).
SELECT
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 10 THEN
CASE WHEN LEFT(@text, LEN(@text) - 10) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483647'
THEN CAST (@text AS INT)
END
END
END
If you want to support positive and negative integers with any number of leading zeros:
SELECT
-- Positive integers (or 0):
CASE WHEN @text NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 1 AND 9 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 10 THEN
CASE WHEN LEFT(@text, LEN(@text) - 10) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483647'
THEN CAST (@text AS INT)
END
END
-- Negative integers:
WHEN LEFT(@text, 1) = '-' THEN
CASE WHEN RIGHT(@text, LEN(@text) - 1) NOT LIKE '%[^0-9]%' THEN
CASE WHEN LEN(@text) BETWEEN 2 AND 10 THEN CAST (@text AS INT)
WHEN LEN(@text) >= 11 THEN
CASE WHEN SUBSTRING(@text, 2, LEN(@text) - 11) NOT LIKE '%[^0]%'
AND RIGHT(@text, 10) <= '2147483648'
THEN CAST (@text AS INT)
END
END
END
END
From Simulator 3.2 final:
Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B367 Safari/531.21.10
I might use something like this:
import os
s = s.rstrip(os.linesep)
I think the problem with rstrip("\n")
is that you'll probably want to make sure the line separator is portable. (some antiquated systems are rumored to use "\r\n"
). The other gotcha is that rstrip
will strip out repeated whitespace. Hopefully os.linesep
will contain the right characters. the above works for me.
You might also want to look into Dictionarys if your data is unique, This will give you two columns to work with.
User name , Total bill
it gives you a lot of built in tools to search and update just the value.
Reviving an old question because it seems to appear at the top of search results.
I wanted to retain transition effects while still being able to style the actionlink so I came up with this solution.
<div class="parent-style-one"> @Html.ActionLink("Homepage", "Home", "Home") </div>
.parent-style-one { /* your styles here */ }
.parent-style-one a { text-decoration: none; }
.parent-style-one a:hover { text-decoration: underline; -webkit-transition-duration: 1.1s; /* Safari */ transition-duration: 1.1s; }
This way I only target the child elements of the div in this case the action link and still be able to apply transition effects.
Try setting C_INCLUDE_PATH
(for C header files) or CPLUS_INCLUDE_PATH
(for C++ header files).
As Ciro mentioned, CPATH
will set the path for both C and C++ (and any other language).
More details in GCC's documentation.
Your question is a little unclear, but if what you're doing is trying to get your friend's latest changes, then typically what your friend needs to do is to push those changes up to a remote repo (like one hosted on GitHub), and then you fetch or pull those changes from the remote:
Your friend pushes his changes to GitHub:
git push origin <branch>
Clone the remote repository if you haven't already:
git clone https://[email protected]/abc/theproject.git
Fetch or pull your friend's changes (unnecessary if you just cloned in step #2 above):
git fetch origin
git merge origin/<branch>
Note that git pull
is the same as doing the two steps above:
git pull origin <branch>
Wes McKinney (pandas' author) in Python for Data Analysis provides the following recipe:
groups = dict(list(gb))
which returns a dictionary whose keys are your group labels and whose values are DataFrames, i.e.
groups['foo']
will yield what you are looking for:
A B C
0 foo 1.624345 5
2 foo -0.528172 11
4 foo 0.865408 14
The best way is to copy all the files and folders inside a directory on your local file system by: docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH
SRC_PATH
is on container
DEST_PATH
is on localhost
Then do docker-compose down
attach a volume to the same DEST_PATH
and run Docker containers by using docker-compose up -d
Add volume by following in docker-compose.yml
volumes:
- DEST_PATH:SRC_PATH
It's a builtin function that returns an object that can be iterated over. See the documentation.
In short, it loops over the elements of an iterable (like a list), as well as an index number, combined in a tuple:
for item in enumerate(["a", "b", "c"]):
print item
prints
(0, "a")
(1, "b")
(2, "c")
It's helpful if you want to loop over a sequence (or other iterable thing), and also want to have an index counter available. If you want the counter to start from some other value (usually 1), you can give that as second argument to enumerate
.
This can be done in three simple steps:
1) Add item id with url
tag:
{% for item in post %}
<tr>
<th>{{ item.id }}</th>
<td>{{ item.title }}</td>
<td>{{ item.body }}</td>
<td>
<a href={% url 'edit' id=item.id %}>Edit</a>
<a href={% url 'delete' id=item.id %}>Delete</a>
</td>
</tr>
{% endfor %}
2) Add path to urls.py:
path('edit/<int:id>', views.edit, name='edit')
path('delete/<int:id>', views.delete, name='delete')
3) Use the id on views.py:
def delete(request, id):
obj = post.objects.get(id=id)
obj.delete()
return redirect('dashboard')
Spent a lot of time because of the auto-import.
Intellij Idea somewhy imported @Service
from import org.jvnet.hk2.annotations.Service;
instead of import org.springframework.stereotype.Service;
!
With async
/ await
and Typescript I would do:
import * as fs from 'fs'
async function upsertFile(name: string) {
try {
// try to read file
await fs.promises.readFile(name)
} catch (error) {
// create empty file, because it wasn't found
await fs.promises.writeFile(name, '')
}
}
The insert or replace query would insert a new record if id=1 does not already exist.
The update query would only oudate id=1 if it aready exist, it would not create a new record if it didn't exist.
In Chrome, request with 'Content-Type:application/json' shows as Request PayedLoad and sends data as json object.
But request with 'Content-Type:application/x-www-form-urlencoded' shows Form Data and sends data as Key:Value Pair, so if you have array of object in one key it flats that key's value:
{ Id: 1,
name:'john',
phones:[{title:'home',number:111111,...},
{title:'office',number:22222,...}]
}
sends
{ Id: 1,
name:'john',
phones:[object object]
phones:[object object]
}
looks like outerWidth is broken in the latest version of jquery.
The discrepancy happens when
the outer div is floated, the inner div has the width set (smaller than the outer div) the inner div has style="margin:auto"
Look up: http://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-security.html
From AuthenticationManagerConfiguration.java looking at code, I see below. Also the in-memory configuration is a fallback if no authentication manager is provided as per Javadoc. Your earlier attempt of Injecting the Authentication Manager would work because you will no longer be using the In-memory authentication and this class will be out of picture.
@Override
public void configure(AuthenticationManagerBuilder auth) throws Exception {
if (auth.isConfigured()) {
return;
}
User user = this.securityProperties.getUser();
if (user.isDefaultPassword()) {
logger.info("\n\nUsing default security password: " + user.getPassword()
+ "\n");
}
Set<String> roles = new LinkedHashSet<String>(user.getRole());
withUser(user.getName()).password(user.getPassword()).roles(
roles.toArray(new String[roles.size()]));
setField(auth, "defaultUserDetailsService", getUserDetailsService());
super.configure(auth);
}
If you use inmemory authentication which is default, customize your logger configuration for org.springframework.boot.autoconfigure.security.AuthenticationManagerConfiguration and remove this message.
How to correctly use moment.js durations? | Use moment.duration() in codes
First, you need to import moment
and moment-duration-format
.
import moment from 'moment';
import 'moment-duration-format';
Then, use duration function. Let us apply the above example: 28800 = 8 am.
moment.duration(28800, "seconds").format("h:mm a");
Well, you do not have above type error. Do you get a right value 8:00 am ? No…, the value you get is 8:00 a. Moment.js format is not working as it is supposed to.
The solution is to transform seconds to milliseconds and use UTC time.
moment.utc(moment.duration(value, 'seconds').asMilliseconds()).format('h:mm a')
All right we get 8:00 am now. If you want 8 am instead of 8:00 am for integral time, we need to do RegExp
const time = moment.utc(moment.duration(value, 'seconds').asMilliseconds()).format('h:mm a');
time.replace(/:00/g, '')
difference-between-two-dates-in-java
Extracted the code from the link
public class TimeDiff {
/**
* (For testing purposes)
*
*/
public static void main(String[] args) {
Date d1 = new Date();
try { Thread.sleep(750); } catch(InterruptedException e) { /* ignore */ }
Date d0 = new Date(System.currentTimeMillis() - (1000*60*60*24*3)); // About 3 days ago
long[] diff = TimeDiff.getTimeDifference(d0, d1);
System.out.printf("Time difference is %d day(s), %d hour(s), %d minute(s), %d second(s) and %d millisecond(s)\n",
diff[0], diff[1], diff[2], diff[3], diff[4]);
System.out.printf("Just the number of days = %d\n",
TimeDiff.getTimeDifference(d0, d1, TimeDiff.TimeField.DAY));
}
/**
* Calculate the absolute difference between two Date without
* regard for time offsets
*
* @param d1 Date one
* @param d2 Date two
* @param field The field we're interested in out of
* day, hour, minute, second, millisecond
*
* @return The value of the required field
*/
public static long getTimeDifference(Date d1, Date d2, TimeField field) {
return TimeDiff.getTimeDifference(d1, d2)[field.ordinal()];
}
/**
* Calculate the absolute difference between two Date without
* regard for time offsets
*
* @param d1 Date one
* @param d2 Date two
* @return The fields day, hour, minute, second and millisecond
*/
public static long[] getTimeDifference(Date d1, Date d2) {
long[] result = new long[5];
Calendar cal = Calendar.getInstance();
cal.setTimeZone(TimeZone.getTimeZone("UTC"));
cal.setTime(d1);
long t1 = cal.getTimeInMillis();
cal.setTime(d2);
long diff = Math.abs(cal.getTimeInMillis() - t1);
final int ONE_DAY = 1000 * 60 * 60 * 24;
final int ONE_HOUR = ONE_DAY / 24;
final int ONE_MINUTE = ONE_HOUR / 60;
final int ONE_SECOND = ONE_MINUTE / 60;
long d = diff / ONE_DAY;
diff %= ONE_DAY;
long h = diff / ONE_HOUR;
diff %= ONE_HOUR;
long m = diff / ONE_MINUTE;
diff %= ONE_MINUTE;
long s = diff / ONE_SECOND;
long ms = diff % ONE_SECOND;
result[0] = d;
result[1] = h;
result[2] = m;
result[3] = s;
result[4] = ms;
return result;
}
public static void printDiffs(long[] diffs) {
System.out.printf("Days: %3d\n", diffs[0]);
System.out.printf("Hours: %3d\n", diffs[1]);
System.out.printf("Minutes: %3d\n", diffs[2]);
System.out.printf("Seconds: %3d\n", diffs[3]);
System.out.printf("Milliseconds: %3d\n", diffs[4]);
}
public static enum TimeField {DAY,
HOUR,
MINUTE,
SECOND,
MILLISECOND;
}
}
Here you can find another tool (including source code) to remove both SCC footprint from the solution and project files and the .vssscc and .vspscc files. In addition, it removes the output and other configurable directories.
Hth
Stefan
// Some more complex constant variable/pointer declaration.
// Observing cases when we get error and warning would help
// understanding it better.
int main(void)
{
char ca1[10]= "aaaa"; // char array 1
char ca2[10]= "bbbb"; // char array 2
char *pca1= ca1;
char *pca2= ca2;
char const *ccs= pca1;
char * const csc= pca2;
ccs[1]='m'; // Bad - error: assignment of read-only location ‘*(ccs + 1u)’
ccs= csc; // Good
csc[1]='n'; // Good
csc= ccs; // Bad - error: assignment of read-only variable ‘csc’
char const **ccss= &ccs; // Good
char const **ccss1= &csc; // Bad - warning: initialization from incompatible pointer type
char * const *cscs= &csc; // Good
char * const *cscs1= &ccs; // Bad - warning: initialization from incompatible pointer type
char ** const cssc= &pca1; // Good
char ** const cssc1= &ccs; // Bad - warning: initialization from incompatible pointer type
char ** const cssc2= &csc; // Bad - warning: initialization discards ‘const’
// qualifier from pointer target type
*ccss[1]= 'x'; // Bad - error: assignment of read-only location ‘**(ccss + 8u)’
*ccss= ccs; // Good
*ccss= csc; // Good
ccss= ccss1; // Good
ccss= cscs; // Bad - warning: assignment from incompatible pointer type
*cscs[1]= 'y'; // Good
*cscs= ccs; // Bad - error: assignment of read-only location ‘*cscs’
*cscs= csc; // Bad - error: assignment of read-only location ‘*cscs’
cscs= cscs1; // Good
cscs= cssc; // Good
*cssc[1]= 'z'; // Good
*cssc= ccs; // Bad - warning: assignment discards ‘const’
// qualifier from pointer target type
*cssc= csc; // Good
*cssc= pca2; // Good
cssc= ccss; // Bad - error: assignment of read-only variable ‘cssc’
cssc= cscs; // Bad - error: assignment of read-only variable ‘cssc’
cssc= cssc1; // Bad - error: assignment of read-only variable ‘cssc’
}
For large dataframes of numeric data, you may see a significant performance improvement via numpy.lexsort
, which performs an indirect sort using a sequence of keys:
import pandas as pd
import numpy as np
np.random.seed(0)
df1 = pd.DataFrame(np.random.randint(1, 5, (10,2)), columns=['a','b'])
df1 = pd.concat([df1]*100000)
def pdsort(df1):
return df1.sort_values(['a', 'b'], ascending=[True, False])
def lex(df1):
arr = df1.values
return pd.DataFrame(arr[np.lexsort((-arr[:, 1], arr[:, 0]))])
assert (pdsort(df1).values == lex(df1).values).all()
%timeit pdsort(df1) # 193 ms per loop
%timeit lex(df1) # 143 ms per loop
One peculiarity is that the defined sorting order with numpy.lexsort
is reversed: (-'b', 'a')
sorts by series a
first. We negate series b
to reflect we want this series in descending order.
Be aware that np.lexsort
only sorts with numeric values, while pd.DataFrame.sort_values
works with either string or numeric values. Using np.lexsort
with strings will give: TypeError: bad operand type for unary -: 'str'
.
Check if you are using any sort of jquery/javascript validation on the page and try disabling it and see what happens. You can use your browser's developer tools to see if any javascript file with validate or validation is being loaded. You can also look for hidden form elements (ie. style set to display:none; or something like that) and make sure there isn't a hidden validation error on those that's not being rendered.
Be careful though, for those who using pip install --user some_pkg
inside a virtual environment.
$ path/to/python -m venv ~/my_py_venv
$ source ~/my_py_venv/bin/activate
(my_py_venv) $ pip install --user some_pkg
(my_py_venv) $ pip uninstall some_pkg
WARNING: Skipping some_pkg as it is not installed.
(my_py_venv) $ pip list
# Even `pip list` will not properly list the `some_pkg` in this case
In this case, you have to deactivate the current virtual environment, then use the corresponding python
/pip
executable to list or uninstall the user site packages:
(my_py_venv) $ deactivate
$ path/to/python -m pip list
$ path/to/python -m pip uninstall some_pkg
Note that this issue was reported few years ago. And it seems that the current conclusion is: --user
is not valid inside a virtual env's pip
, since a user location doesn't really make sense for a virtual environment.
Yes, it is possible. You have to do something like this:
if(isset($_POST['submit']))
{
$type_id = ($_POST['type_id'] == '' ? "null" : "'".$_POST['type_id']."'");
$sql = "INSERT INTO `table` (`type_id`) VALUES (".$type_id.")";
}
It checks if the $_POST['type_id']
variable has an empty value.
If yes, it assign NULL
as a string to it.
If not, it assign the value with ' to it for the SQL
notation
If you want to remove the namespace you may also want to remove the version, to save you searching I've added that functionality so the below code will do both.
I've also wrapped it in a generic method as I'm creating very large xml files which are too large to serialize in memory so I've broken my output file down and serialize it in smaller "chunks":
public static string XmlSerialize<T>(T entity) where T : class
{
// removes version
XmlWriterSettings settings = new XmlWriterSettings();
settings.OmitXmlDeclaration = true;
XmlSerializer xsSubmit = new XmlSerializer(typeof(T));
using (StringWriter sw = new StringWriter())
using (XmlWriter writer = XmlWriter.Create(sw, settings))
{
// removes namespace
var xmlns = new XmlSerializerNamespaces();
xmlns.Add(string.Empty, string.Empty);
xsSubmit.Serialize(writer, entity, xmlns);
return sw.ToString(); // Your XML
}
}
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
/// <summary>
/// Use to emulate the C lib function _splitpath()
/// </summary>
/// <param name="path">The path to split</param>
/// <param name="rootpath">optional root if a relative path</param>
/// <returns>the folders in the path.
/// Item 0 is drive letter with ':'
/// If path is UNC path then item 0 is "\\"
/// </returns>
/// <example>
/// string p1 = @"c:\p1\p2\p3\p4";
/// string[] ap1 = p1.SplitPath();
/// // ap1 = {"c:", "p1", "p2", "p3", "p4"}
/// string p2 = @"\\server\p2\p3\p4";
/// string[] ap2 = p2.SplitPath();
/// // ap2 = {@"\\", "server", "p2", "p3", "p4"}
/// string p3 = @"..\p3\p4";
/// string root3 = @"c:\p1\p2\";
/// string[] ap3 = p1.SplitPath(root3);
/// // ap3 = {"c:", "p1", "p3", "p4"}
/// </example>
public static string[] SplitPath(this string path, string rootpath = "")
{
string drive;
string[] astr;
path = Path.GetFullPath(Path.Combine(rootpath, path));
if (path[1] == ':')
{
drive = path.Substring(0, 2);
string newpath = path.Substring(2);
astr = newpath.Split(new[] { Path.DirectorySeparatorChar }
, StringSplitOptions.RemoveEmptyEntries);
}
else
{
drive = @"\\";
astr = path.Split(new[] { Path.DirectorySeparatorChar }
, StringSplitOptions.RemoveEmptyEntries);
}
string[] splitPath = new string[astr.Length + 1];
splitPath[0] = drive;
astr.CopyTo(splitPath, 1);
return splitPath;
}
SetTimeout is used to make your set of code to execute after a specified time period so for your requirements its better to use setInterval because that will call your function every time at a specified time interval.
ALWAYS use scope_identity(), there's NEVER a need for anything else.
You can run the DOS ping.exe command from javaScript using the folowing:
function ping(ip)
{
var input = "";
var WshShell = new ActiveXObject("WScript.Shell");
var oExec = WshShell.Exec("c:/windows/system32/ping.exe " + ip);
while (!oExec.StdOut.AtEndOfStream)
{
input += oExec.StdOut.ReadLine() + "<br />";
}
return input;
}
Is this what was asked for, or am i missing something?
I recently had this same problem. Unfortunately, NotifyIcon is only a Windows.Forms control at the moment, if you want to use it you are going to have to include that part of the framework. I guess that depends how much of a WPF purist you are.
If you want a quick and easy way of getting started check out this WPF NotifyIcon control on the Code Project which does not rely on the WinForms NotifyIcon at all. A more recent version seems to be available on the author's website and as a NuGet package. This seems like the best and cleanest way to me so far.
- Rich ToolTips rather than text
- WPF context menus and popups
- Command support and routed events
- Flexible data binding
- Rich balloon messages rather than the default messages provides by the OS
Check it out. It comes with an amazing sample app too, very easy to use, and you can have great looking Windows Live Messenger style WPF popups, tooltips, and context menus. Perfect for displaying an RSS feed, I am using it for a similar purpose.
In case Chrome tells you "This can only be added from the Chrome Web Store", you can try the following:
Your question almost spells the SQL for this:
DELETE FROM table WHERE id IN (1, 4, 6, 7)
What you have is correct, but this is more consice:
^[A-Z]{3}$
If you happen to be using jQuery, you might want to give this a shot: http://api.jquery.com/category/deferred-object/
It allows you to defer the execution of your callback function until the ajax request (or any async operation) is completed. This can also be used to call a callback once several ajax requests have all completed.
To stop the service we must use the method stopService()
:
Intent myService = new Intent(MainActivity.this, BackgroundSoundService.class);
//startService(myService);
stopService(myService);
then the method onDestroy()
in the service is called:
@Override
public void onDestroy() {
Log.i(TAG, "onCreate() , service stopped...");
}
Here is a complete example including how to stop the service.
you can do it with visual Basic, put a Webbrowser control on the form, load an html that opens a popup with Location=no
and it will open a new browser without address bar. Probably not what you are looking for but just thought throw it in :)
Thanks for the replies.
I tried the first approach, but nothing changed. Then, I tried to log the results. I just drilled down level by level, until I finally got to where the data was being displayed.
After a while I found the problem: When I was sending the response, I was converting it to a string via .toString()
.
I fixed that and now it works brilliantly. Sorry for the false alarm.
The built-in submodule os.path has a function for that very task.
import os
os.path.dirname('T:\Data\DBDesign\DBDesign_93_v141b.mdb')
Just in case if someone needs this for Xamarin in c#:
Intent intent = new Intent(Intent.ActionInsert);
intent.SetData(Android.Provider.CalendarContract.Events.ContentUri);
intent.PutExtra(Android.Provider.CalendarContract.ExtraEventBeginTime, Utils.Tools.CurrentTimeMillis(game.Date));
intent.PutExtra(Android.Provider.CalendarContract.EventsColumns.AllDay, false);
intent.PutExtra(Android.Provider.CalendarContract.EventsColumns.EventLocation, "Location");
intent.PutExtra(Android.Provider.CalendarContract.EventsColumns.Description, "Description");
intent.PutExtra(Android.Provider.CalendarContract.ExtraEventEndTime, Utils.Tools.CurrentTimeMillis(game.Date.AddHours(2)));
intent.PutExtra(Android.Provider.CalendarContract.EventsColumns.Title, "Title");
StartActivity(intent);
Helper Functions:
private static readonly DateTime Jan1st1970 = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
public static long CurrentTimeMillis(DateTime date)
{
return (long)(date.ToUniversalTime() - Jan1st1970).TotalMilliseconds;
}
I use my custom utility to cast an existing Collection if available.
Main:
public static <T> Collection<T> toCollection(Iterable<T> iterable) {
if (iterable instanceof Collection) {
return (Collection<T>) iterable;
} else {
return Lists.newArrayList(iterable);
}
}
Ideally the above would use ImmutableList, but ImmutableCollection does not allow nulls which may provide undesirable results.
Tests:
@Test
public void testToCollectionAlreadyCollection() {
ArrayList<String> list = Lists.newArrayList(FIRST, MIDDLE, LAST);
assertSame("no need to change, just cast", list, toCollection(list));
}
@Test
public void testIterableToCollection() {
final ArrayList<String> expected = Lists.newArrayList(FIRST, null, MIDDLE, LAST);
Collection<String> collection = toCollection(new Iterable<String>() {
@Override
public Iterator<String> iterator() {
return expected.iterator();
}
});
assertNotSame("a new list must have been created", expected, collection);
assertTrue(expected + " != " + collection, CollectionUtils.isEqualCollection(expected, collection));
}
I implement similar utilities for all subtypes of Collections (Set,List,etc). I'd think these would already be part of Guava, but I haven't found it.
Maybe specifying a width would work. When you position:absolute
an element, it's width will shrink to the contents I believe.
I had a similar problem, however in my case I could pull/push to the remote branch but git status
didn't show the local branch state w.r.t the remote ones.
Also, in my case git config --get remote.origin.fetch
didn't return anything
The problem is that there was a typo in the .git/config
file in the fetch line of the respective remote block. Probably something I added by mistake previously (sometimes I directly look at this file, or even edit it)
So, check if your remote entry in the .git/config
file is correct, e.g.:
[remote "origin"]
url = https://[server]/[user or organization]/[repo].git
fetch = +refs/heads/*:refs/remotes/origin/*
class color:
PURPLE = '\033[95m'
CYAN = '\033[96m'
DARKCYAN = '\033[36m'
BLUE = '\033[94m'
GREEN = '\033[92m'
YELLOW = '\033[93m'
RED = '\033[91m'
BOLD = '\033[1m'
UNDERLINE = '\033[4m'
END = '\033[0m'
print(color.BOLD + 'Hello World !' + color.END)
It seems you cannot have your project root, with the AndroidManifest.xml deeper than one directory level below your workspace root. I struggled for an hour with this before I just gave up and rearranged my repo.
If you called setText
before and the new text didn't get layout phase call setSelection
in a separate runnable fired by View.post(Runnable)
(repost from this topic).
So, for me this code works:
editText.setText("text");
editText.post(new Runnable() {
@Override
public void run() {
editText.setSelection(editText.getText().length());
}
});
Edit 05/16/2019: Right now I'm using Kotlin extension for that:
fun EditText.placeCursorToEnd() {
this.setSelection(this.text.length)
}
and then - editText.placeCursorToEnd().
I found this method to dump object, try this String dump(Object object)
If you indeed wanna use scp, there's a indirect way.Say we want to copy all .jpg file under local folder '/src' to folder '/dst' in remote server 10.1.1.2:
#make a clean temp folder
mkdir /tmp/ttt
#copy all .jpg file and retain folder structure as-is
find /src -type f -name *.jpg -exec cp --parents \{\} /tmp/ttt \;
#copy to remote target folder as-is and retain original time attributes
scp -rp /tmp/ttt/* 10.1.1.2:/dst
#if copy ok, remove temp folder
rm -rf /tmp/ttt
For those who want some background info, here's a short article explaining why overflow: hidden
works. It has to do with the so-called block formatting context. This is part of W3C's spec (ie is not a hack) and is basically the region occupied by an element with a block-type flow.
Every time it is applied, overflow: hidden
creates a new block formatting context. But it's not the only property capable of triggering that behaviour. Quoting a presentation by Fiona Chan from Sydney Web Apps Group:
- float: left / right
- overflow: hidden / auto / scroll
- display: table-cell and any table-related values / inline-block
- position: absolute / fixed
Well I tried Nathan Koop's answer and it didn't work for me. I changed it to the following and it did work:
SELECT COUNT(*)
FROM INFORMATION_SCHEMA.COLUMNS
WHERE table_name = 'table_name'
It also didn't work if I put USE 'database_name'
nor WHERE table_catalog = 'database_name' AND table_name' = 'table_name'
. I actually will be happy to know why.
Running python -h
, I see a command line option:
-u : unbuffered binary stdout and stderr; also PYTHONUNBUFFERED=x see man page for details on internal buffering relating to '-u'
Here is the relevant doc.
This is how I've been doing it:
$arr = array(1,2,3,4,5,6,7,8,9);
$string = rtrim(implode(',', $arr), ',');
echo $string;
Output:
1,2,3,4,5,6,7,8,9
Live Demo: http://ideone.com/EWK1XR
EDIT: Per @joseantgv's comment, you should be able to remove rtrim()
from the above example. I.e:
$string = implode(',', $arr);
We can copy all columns from one table to another, existing table:
INSERT INTO table2 SELECT * FROM table1;
Or we can copy only the columns we want to into another, existing table:
INSERT INTO table2 (column_name(s)) SELECT column_name(s) FROM table1;
or SELECT * INTO BACKUP_TABLE1 FROM TABLE1
According to the definition of getchar()
, it reads a character from the standard input. Unfortunately stdin
is mistaken for keyboard which might not be the case for getchar
. getchar
uses a buffer as stdin
and reads a single character at a time. In your case since there is no EOF
, the getchar
and putchar
are running multiple times and it looks to you as it the whole string is being printed out at a time. Make a small change and you will understand:
putchar(c);
printf("\n");
c = getchar();
Now look at the output compared to the original code.
Another example that will explain you the concept of getchar
and buffered stdin
:
void main(){
int c;
printf("Enter character");
c = getchar();
putchar();
c = getchar();
putchar();
}
Enter two characters in the first case. The second time when getchar
is running are you entering any character? NO but still putchar
works.
This ultimately means there is a buffer and when ever you are typing something and click enter this goes and settles in the buffer. getchar
uses this buffer as stdin
.
<div id="412412412" class="input-group date">
<div class="input-group-prepend">
<button class="btn btn-danger" type="button">Button Click</button>
<input type="text" class="form-control" value="">
</div>
</div>
In my situation, i use this code:
$(this).parent().closest('.date').attr('id')
Hope this help someone.
The best one I have used and researched on it is $request->merge([])
(Check My Piece of Code):
public function index(Request $request) {
not_permissions_redirect(have_premission(2));
$filters = (!empty($request->all())) ? true : false;
$request->merge(['type' => 'admin']);
$users = $this->service->getAllUsers($request->all());
$roles = $this->roles->getAllAdminRoles();
return view('users.list', compact(['users', 'roles', 'filters']));
}
Check line # 3 inside the index function.
You can use switch-case fall through by omitting the break;
statement.
char c = /* whatever */;
switch(c) {
case 'a':
case 'A':
//get the 'A' image;
break;
case 'b':
case 'B':
//get the 'B' image;
break;
// (...)
case 'z':
case 'Z':
//get the 'Z' image;
break;
}
...or you could just normalize to lower case or upper case before switch
ing.
char c = Character.toUpperCase(/* whatever */);
switch(c) {
case 'A':
//get the 'A' image;
break;
case 'B':
//get the 'B' image;
break;
// (...)
case 'Z':
//get the 'Z' image;
break;
}
You may use a local variable, like:
float[] values = new float[3];
float[] v = {0.1f, 0.2f, 0.3f};
float[] values = v;
Following Nick Craver's solution, setting the element's visibility allows it to get accurate dimensions. I've used this solution very very often. However, having to reset the styles manually, I've come to find this cumbersome, given that modifying the element's initial positioning/display in my css through development, I often forget to update the related javascript code. The following code doesn't reset the styles per say, but removes the inline styles added by javascript:
$("#myDiv")
.css({
position: 'absolute',
visibility: 'hidden',
display: 'block'
});
optionHeight = $("#myDiv").height();
optionWidth = $("#myDiv").width();
$("#myDiv").attr('style', '');
The only assumption here is that there can't be other inline styles or else they will be removed aswell. The benefit here, however, is that the element's styles are returned to what they were in the css stylesheet. As a consequence, you can write this up as a function where an element is passed through, and a height or width is returned.
Another issue I've found of setting the styles inline via js is that when dealing with transitions through css3, you become forced to adapt your style rules' weights to be stronger than an inline style, which can be frustrating sometimes.
In the code you posted, you're sending the setDownloadURL:
setter to ClassA
— that is, the class itself. You want to set the property of an instance.
The following command removes the first occurrence of a string, within a file. It removes the empty line too. It is presented on an xml file, but it would work with any file.
Useful if you work with xml files and you want to remove a tag. In this example it removes the first occurrence of the "isTag" tag.
Command:
sed -e 0,/'<isTag>false<\/isTag>'/{s/'<isTag>false<\/isTag>'//} -e 's/ *$//' -e '/^$/d' source.txt > output.txt
Source file (source.txt)
<xml>
<testdata>
<canUseUpdate>true</canUseUpdate>
<isTag>false</isTag>
<moduleLocations>
<module>esa_jee6</module>
<isTag>false</isTag>
</moduleLocations>
<node>
<isTag>false</isTag>
</node>
</testdata>
</xml>
Result file (output.txt)
<xml>
<testdata>
<canUseUpdate>true</canUseUpdate>
<moduleLocations>
<module>esa_jee6</module>
<isTag>false</isTag>
</moduleLocations>
<node>
<isTag>false</isTag>
</node>
</testdata>
</xml>
ps: it didn't work for me on Solaris SunOS 5.10 (quite old), but it works on Linux 2.6, sed version 4.1.5
The only way to do this is to iterate over the array. Obviously if you are sure that the results are ordered by id you can do a binary search
This code is also working:
<html>_x000D_
<head></head>_x000D_
<body>_x000D_
_x000D_
<table style="table-layout:fixed;">_x000D_
<tr>_x000D_
<td style="word-break: break-all; width:100px;">ThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrapThisStringWillNotWrap</td>_x000D_
</tr>_x000D_
</table>_x000D_
_x000D_
</body></html>
_x000D_
Maps from JDK are not meant for storing data under duplicated keys.
At best new value will override the previous ones.
Worse scenario is exception (e.g when you try to collect it as a stream):
No duplicates:
Stream.of("one").collect(Collectors.toMap(x -> x, x -> x))
Ok. You will get: $2 ==> {one=one}
Duplicated stream:
Stream.of("one", "not one", "surely not one").collect(Collectors.toMap(x -> 1, x -> x))
Exception java.lang.IllegalStateException: Duplicate key 1 (attempted merging values one and not one) | at Collectors.duplicateKeyException (Collectors.java:133) | at Collectors.lambda$uniqKeysMapAccumulator$1 (Collectors.java:180) | at ReduceOps$3ReducingSink.accept (ReduceOps.java:169) | at Spliterators$ArraySpliterator.forEachRemaining (Spliterators.java:948) | at AbstractPipeline.copyInto (AbstractPipeline.java:484) | at AbstractPipeline.wrapAndCopyInto (AbstractPipeline.java:474) | at ReduceOps$ReduceOp.evaluateSequential (ReduceOps.java:913) | at AbstractPipeline.evaluate (AbstractPipeline.java:234) | at ReferencePipeline.collect (ReferencePipeline.java:578) | at (#4:1)
To deal with duplicated keys - use other package, e.g: https://google.github.io/guava/releases/19.0/api/docs/com/google/common/collect/Multimap.html
There is a lot of other implementations dealing with duplicated keys. Those are needed for web (e.g. duplicated cookie keys, Http headers can have same fields, ...)
Good luck! :)
According to http://blog.flameeyes.eu/2008/04/14/what-about-those-la-files, they're needed to handle dependencies. But using pkg-config may be a better option:
In a perfect world, every static library needing dependencies would have its own .pc file for pkg-config, and every package trying to statically link to that library would be using pkg-config --static to get the libraries to link to.
I think this topic is totally overdiscussed/overcomplicated. Using an IDE is THE way to go to completely avoid any syntax errors. I would even say that working without an IDE is kind of unprofessional. Why? Because modern IDEs check your syntax after every character you type. When you code and your entire line turns red, and a big warning notice shows you the exact type and the exact position of the syntax error, then there's absolutely no need to search for another solution.
You'll (effectively) never run into syntax errors again, simply because you see them right as you type. Seriously.
Excellent IDEs with syntax check (all of them are available for Linux, Windows and Mac):
In order to reset the value in angular 2 use:
this.rootNode.findNode("objectname").resetValue();
To add to Ilya Palkin's answer: you can even dynamically remove keys:
const x = {a: 1, b: 2, c: 3, z:26};
const objectWithoutKey = (object, key) => {
const {[key]: deletedKey, ...otherKeys} = object;
return otherKeys;
}
console.log(objectWithoutKey(x, 'b')); // {a: 1, c: 3, z:26}
console.log(x); // {a: 1, b: 2, c: 3, z:26};
Source:
The main
method is the entry point of a Java application.
Specifically?when the Java Virtual Machine is told to run an application by specifying its class (by using the java
application launcher), it will look for the main
method with the signature of public static void main(String[])
.
From Sun's java
command page:
The java tool launches a Java application. It does this by starting a Java runtime environment, loading a specified class, and invoking that class's main method.
The method must be declared public and static, it must not return any value, and it must accept a
String
array as a parameter. The method declaration must look like the following:public static void main(String args[])
For additional resources on how an Java application is executed, please refer to the following sources:
The run
method is the entry point for a new Thread
or an class implementing the Runnable
interface. It is not called by the Java Virutal Machine when it is started up by the java
command.
As a Thread
or Runnable
itself cannot be run directly by the Java Virtual Machine, so it must be invoked by the Thread.start()
method. This can be accomplished by instantiating a Thread
and calling its start
method in the main
method of the application:
public class MyRunnable implements Runnable
{
public void run()
{
System.out.println("Hello World!");
}
public static void main(String[] args)
{
new Thread(new MyRunnable()).start();
}
}
For more information and an example of how to start a subclass of Thread
or a class implementing Runnable
, see Defining and Starting a Thread from the Java Tutorials.
The init
method is the first method called in an Applet or JApplet.
When an applet is loaded by the Java plugin of a browser or by an applet viewer, it will first call the Applet.init
method. Any initializations that are required to use the applet should be executed here. After the init
method is complete, the start
method is called.
For more information about when the init
method of an applet is called, please read about the lifecycle of an applet at The Life Cycle of an Applet from the Java Tutorials.
See also: How to Make Applets from the Java Tutorial.
Another method that has not been mentioned yet is std::vector
.
std::vector<std::string> line;
while(file >> mystr)
{
line.push_back(mystr);
}
Then you can simply iterate over the vector and modify/extract what you need/
Check for nil and unwrap using "!":
let color = colorChoiceSegmentedControl.titleForSegmentAtIndex(colorChoiceSegmentedControl.selectedSegmentIndex)
println(color) // Optional("Red")
if color != nil {
println(color!) // "Red"
let imageURLString = "http://hahaha.com/ha.php?color=\(color!)"
println(imageURLString)
//"http://hahaha.com/ha.php?color=Red"
}
Working with this excellent answer, you can check the active element (the button), append a hidden input to the form, and optionally remove it at the end of the submit handler.
$('form.form-js').submit(function(event){
var frm = $(this);
var btn = $(document.activeElement);
if(
btn.length &&
frm.has(btn) &&
btn.is('button[type="submit"], input[type="submit"], input[type="image"]') &&
btn.is('[name]')
){
frm.append('<input type="hidden" id="form-js-temp" name="' + btn.attr('name') + '" value="' + btn.val() + '">');
}
// Handle the form submit here
$('#form-js-temp').remove();
});
Side note: I personally add the class form-js
on all forms that are submitted via JavaScript.
My solution is similar to those above but I have abstracted the gesture handling into an abstract class OnGestureRegisterListener.java
, which includes swipe, click and long click gestures.
OnGestureRegisterListener.java
public abstract class OnGestureRegisterListener implements View.OnTouchListener {
private final GestureDetector gestureDetector;
private View view;
public OnGestureRegisterListener(Context context) {
gestureDetector = new GestureDetector(context, new GestureListener());
}
@Override
public boolean onTouch(View view, MotionEvent event) {
this.view = view;
return gestureDetector.onTouchEvent(event);
}
public abstract void onSwipeRight(View view);
public abstract void onSwipeLeft(View view);
public abstract void onSwipeBottom(View view);
public abstract void onSwipeTop(View view);
public abstract void onClick(View view);
public abstract boolean onLongClick(View view);
private final class GestureListener extends GestureDetector.SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public void onLongPress(MotionEvent e) {
onLongClick(view);
super.onLongPress(e);
}
@Override
public boolean onSingleTapUp(MotionEvent e) {
onClick(view);
return super.onSingleTapUp(e);
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight(view);
} else {
onSwipeLeft(view);
}
result = true;
}
}
else if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
onSwipeBottom(view);
} else {
onSwipeTop(view);
}
result = true;
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
}
}
And use it like so. Note that you can also easily pass in your View
parameter.
OnGestureRegisterListener onGestureRegisterListener = new OnGestureRegisterListener(this) {
public void onSwipeRight(View view) {
// Do something
}
public void onSwipeLeft(View view) {
// Do something
}
public void onSwipeBottom(View view) {
// Do something
}
public void onSwipeTop(View view) {
// Do something
}
public void onClick(View view) {
// Do something
}
public boolean onLongClick(View view) {
// Do something
return true;
}
};
Button button = findViewById(R.id.my_button);
button.setOnTouchListener(onGestureRegisterListener);
Sadly I can't answer the other questions, don't have enough reputation, but I need to point something out that was VERY important for me, and I think it will help other people too.
Unsetting the variable is a nice way, unless you need the reference of the original array!
To make clear what I mean: If you have a function wich uses the reference of the array, for example a sorting function like
function special_sort_my_array(&$array)
{
$temporary_list = create_assoziative_special_list_out_of_array($array);
sort_my_list($temporary_list);
unset($array);
foreach($temporary_list as $k => $v)
{
$array[$k] = $v;
}
}
it is not working! Be careful here, unset
deletes the reference, so the variable $array
is created again and filled correctly, but the values are not accessable from outside the function.
So if you have references, you need to use $array = array()
instead of unset
, even if it is less clean and understandable.
If you setup your select like the following:
<select ng-model="myselect" ng-options="b for b in options track by b"></select>
you will get:
<option value="var1">var1</option>
<option value="var2">var2</option>
<option value="var3">var3</option>
working fiddle: http://jsfiddle.net/x8kCZ/15/
Refer to one of the above answers: https://stackoverflow.com/a/23005376/1312796
I added my code to fix a little bug. That where no data retrieved..How to show the prompt text..!
Here is my Trick...It works fine with me. !
Try to put your spinner in a Relative_layoutand align a Textview with your spinner and play with the visibility of the Textview (SHOW/HIDE) whenever the adapter of the spinner loaded or empty..Like this:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginLeft="10dp"
android:layout_marginRight="10dp"
android:layout_marginTop="20dp"
android:background="#ededed"
android:orientation="vertical">
<TextView
android:id="@+id/txt_prompt_from"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:textColor="@color/gray"
android:textSize="16sp"
android:layout_alignStart="@+id/sp_from"
android:text="From"
android:visibility="gone"/>
<Spinner
android:id="@+id/sp_from"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
/>
Here is the code:
txt__from = (TextView) rootView.findViewById(R.id.txt_prompt_from);
call this method after and before spinner adapter loaded and empty.
setPromptTextViewVisibility (); //True or fales
public void setPromptTextViewVisibility (boolean visible )
{
if (visible)
{
txt_from.setVisibility(View.VISIBLE);
}
else
{
txt_from.setVisibility(View.INVISIBLE);
}
}
For doing "normal" hash table lookups on basically any kind of data - this one by Paul Hsieh is the best I've ever used.
http://www.azillionmonkeys.com/qed/hash.html
If you care about cryptographically secure or anything else more advanced, then YMMV. If you just want a kick ass general purpose hash function for a hash table lookup, then this is what you're looking for.
Simplifying what @Scotti said. You need to create Multiples apps with different package name for a particular Project depending on the product flavor.
Suppose your Project is ABC having different product flavors X,Y where X has a package name com.x and Y has a package name com.y then in the firebase console you need to create a project ABC in which you need to create 2 apps with the package names com.x and com.y. Then you need to download the google-services.json file in which there will be 2 client-info objects which will contain those pacakges and you will be good to go.
Snippet of the json would be something like this
{
"client": [
{
"client_info": {
"android_client_info": {
"package_name": "com.x"
}
{
"client_info": {
"android_client_info": {
"package_name": "com.y"
}
]
}
Need to change all arraylist to Serializable wif in bean class :
public static class PremiumListBean implements Serializable {
private List<AddOnValueBean> AddOnValue;
public List<AddOnValueBean> getAddOnValue() {
return AddOnValue;
}
public void setAddOnValue(List<AddOnValueBean> AddOnValue) {
this.AddOnValue = AddOnValue;
}
public static class AddOnValueBean implements Serializable{
@SerializedName("Premium")
private String Premium;
public String getPremium() {
return Premium;
}
public void setPremium(String Premium) {
this.Premium = Premium;
}
}
}
This problem:
$ brew install docker docker-machine
$ docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
This apparently meant do the following:
$ docker-machine create default # default driver is apparently vbox:
Running pre-create checks...
Error with pre-create check: "VBoxManage not found. Make sure VirtualBox is installed and VBoxManage is in the path"
$ brew cask install virtualbox
…
$ docker-machine create default
# works this time
$ docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
$ eval "$(docker-machine env default)"
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
It finally works.
You can use the “xhyve” driver if you don’t want to install virtual box.
Also you can install the “docker app” (then run it) which apparently makes it so you don’t have to run some of the above. brew cask install docker
then run the app, see the other answers. But apparently isn't necessary per se.
You can use Apache Subversion. It is owner of subversion . You can download from here . After install it, you have to restart pc to use svn from command line.
All the above answers are correct. Just providing with your dataset to find perfect divisor:
#include <stdio.h>
int main()
{
int arr[7] = {3,5,7,8,9,17,19};
int j = 51;
int i = 0;
for (i=0 ; i < 7; i++) {
if (j % arr[i] == 0)
printf("%d is the perfect divisor of %d\n", arr[i], j);
}
return 0;
}
I used interop to open Excel and to modify the column widths once the data was done. If you use interop to spit the data into a new Excel workbook (if this is what you want), it will be terribly slow. Instead, I generated a .CSV
, then opened the .CSV
in Excel. This has its own problems, but I've found this the quickest method.
First, convert the .CSV
:
// Convert array data into CSV format.
// Modified from http://csharphelper.com/blog/2018/04/write-a-csv-file-from-an-array-in-c/.
private string GetCSV(List<string> Headers, List<List<double>> Data)
{
// Get the bounds.
var rows = Data[0].Count;
var cols = Data.Count;
var row = 0;
// Convert the array into a CSV string.
StringBuilder sb = new StringBuilder();
// Add the first field in this row.
sb.Append(Headers[0]);
// Add the other fields in this row separated by commas.
for (int col = 1; col < cols; col++)
sb.Append("," + Headers[col]);
// Move to the next line.
sb.AppendLine();
for (row = 0; row < rows; row++)
{
// Add the first field in this row.
sb.Append(Data[0][row]);
// Add the other fields in this row separated by commas.
for (int col = 1; col < cols; col++)
sb.Append("," + Data[col][row]);
// Move to the next line.
sb.AppendLine();
}
// Return the CSV format string.
return sb.ToString();
}
Then, export it to Excel:
public void ExportToExcel()
{
// Initialize app and pop Excel on the screen.
var excelApp = new Excel.Application { Visible = true };
// I use unix time to give the files a unique name that's almost somewhat useful.
DateTime dateTime = DateTime.UtcNow;
long unixTime = ((DateTimeOffset)dateTime).ToUnixTimeSeconds();
var path = @"C:\Users\my\path\here + unixTime + ".csv";
var csv = GetCSV();
File.WriteAllText(path, csv);
// Create a new workbook and get its active sheet.
excelApp.Workbooks.Open(path);
var workSheet = (Excel.Worksheet)excelApp.ActiveSheet;
// iterate over each value and throw it in the chart
for (var column = 0; column < Data.Count; column++)
{
((Excel.Range)workSheet.Columns[column + 1]).AutoFit();
}
currentSheet = workSheet;
}
You'll have to install some stuff, too...
Right click on the solution from solution explorer and select "Manage NuGet Packages." - add Microsoft.Office.Interop.Excel
It might actually work right now if you created the project the way interop wants you to. If it still doesn't work, I had to create a new project in a different category. Under New > Project, select Visual C# > Windows Desktop > Console App. Otherwise, the interop tools won't work.
In case I forgot anything, here's my 'using' statements:
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using Excel = Microsoft.Office.Interop.Excel;
Lodash has a _.pickBy
function which does exactly what you're looking for.
var thing = {_x000D_
"a": 123,_x000D_
"b": 456,_x000D_
"abc": 6789_x000D_
};_x000D_
_x000D_
var result = _.pickBy(thing, function(value, key) {_x000D_
return _.startsWith(key, "a");_x000D_
});_x000D_
_x000D_
console.log(result.abc) // 6789_x000D_
console.log(result.b) // undefined
_x000D_
<script src="https://cdn.jsdelivr.net/lodash/4.16.4/lodash.min.js"></script>
_x000D_
The problem is that for json.load
you should pass a file like object with a read
function defined. So either you use json.load(response)
or json.loads(response.read())
.
I used this way:-
var fs = require('fs');
var parse = require('csv-parse');
var csvData=[];
fs.createReadStream(req.file.path)
.pipe(parse({delimiter: ':'}))
.on('data', function(csvrow) {
console.log(csvrow);
//do something with csvrow
csvData.push(csvrow);
})
.on('end',function() {
//do something with csvData
console.log(csvData);
});
if you in psql just type
set schema 'temp';
and after that \d shows all relations in "temp
Here's another interesting, readable way to check if a string contains only digits.
This method works by splitting the string into an array using the spread operator, and then uses the every()
method to test whether all elements (characters) in the array are included in the string of digits '0123456789'
:
const digits_only = string => [...string].every(c => '0123456789'.includes(c));_x000D_
_x000D_
console.log(digits_only('123')); // true_x000D_
console.log(digits_only('+123')); // false_x000D_
console.log(digits_only('-123')); // false_x000D_
console.log(digits_only('123.')); // false_x000D_
console.log(digits_only('.123')); // false_x000D_
console.log(digits_only('123.0')); // false_x000D_
console.log(digits_only('0.123')); // false_x000D_
console.log(digits_only('Hello, world!')); // false
_x000D_
This will work:
var myColumnDefs = new Object();
for (var i = 0; i < oFullResponse.results.length; i++) {
myColumnDefs[i] = ({key:oFullResponse.results[i].label, sortable:true, resizeable:true});
}
find /dir -type f -follow -print
-type f
means it will display real files (not symlinks)
-follow
means it will follow your directory symlinks
-print
will cause it to display the filenames.
If you want a ls type display, you can do the following
find /dir -type f -follow -print|xargs ls -l
The example from jQuery's website animates size AND font but you could easily modify it to fit your needs
$("#go").click(function(){
$("#block").animate({
width: "70%",
opacity: 0.4,
marginLeft: "0.6in",
fontSize: "3em",
borderWidth: "10px"
}, 1500 );
If your proxy server or container adds the following header when serving the .js file, it will force some browsers such as Chrome to perform strict checking of MIME types:
X-Content-Type-Options: nosniff
Remove this header to prevent Chrome performing the MIME check.
If you want to open the Dialog immediately when the Dialog is initialized or the page is ready, you can also set the parameter autoOpen
to true
in the options object of dialog:
var opt = {
autoOpen: true,
modal: true,
width: 550,
height:650,
title: 'Details'
};
Thus, you do not have to call the `$("#divDialog").dialog("open");
When dialog object is initialized, the dialog is automatically opened.
Unfortunately, I don't think Pandas allows one to drop dups off the indices. I would suggest the following:
df3 = df3.reset_index() # makes date column part of your data
df3.columns = ['timestamp','A','B','rownum'] # set names
df3 = df3.drop_duplicates('timestamp',take_last=True).set_index('timestamp') #done!