var arr = Array.prototype.slice.call( htmlCollection )
will have the same effect using "native" code.
Edit
Since this gets a lot of views, note (per @oriol's comment) that the following more concise expression is effectively equivalent:
var arr = [].slice.call(htmlCollection);
But note per @JussiR's comment, that unlike the "verbose" form, it does create an empty, unused, and indeed unusable array instance in the process. What compilers do about this is outside the programmer's ken.
Edit
Since ECMAScript 2015 (ES 6) there is also Array.from:
var arr = Array.from(htmlCollection);
Edit
ECMAScript 2015 also provides the spread operator, which is functionally equivalent to Array.from
(although note that Array.from
supports a mapping function as the second argument).
var arr = [...htmlCollection];
I've confirmed that both of the above work on NodeList
.
A performance comparison for the mentioned methods: http://jsben.ch/h2IFA
For Android App Name
Change the label name in your AndroidManifest.xml
file:
<application
android:name="io.flutter.app.FlutterApplication"
android:label="TheNameOfYourApp"
For Package Name
Change the package name in your AndroidManifest.xml
(in 3 of them, folders: main, debug and profile, according what environment you want to deploy) file:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="your.package.name">
Also in your build.gradle
file inside app folder
defaultConfig {
applicationId "your.package.name"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
Finally, change the package in your MainActivity.java
class (if the MainActivity.java is not available, check the MainActivity.kt)
package your.package.name;
import android.os.Bundle;
import io.flutter.app.FlutterActivity;
import io.flutter.plugins.GeneratedPluginRegistrant;
public class MainActivity extends FlutterActivity {
Change the directory name:
From:
android\app\src\main\java\com\example\name
To:
android\app\src\main\java\your\package\name
EDITED : 27-Dec-18
for package name just change in build build.gradle
only
defaultConfig {
applicationId "your.package.name"
minSdkVersion 16
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
For iOS
Change the bundle identifier from your Info.plist
file inside your ios/Runner
directory.
<key>CFBundleIdentifier</key>
<string>com.your.packagename</string>
UPDATE
To avoid renaming the package and bundle identifier, you can start your project using this command in your terminal:
flutter create --org com.yourdomain appname
HashMap<String, String> meMap = new HashMap<String, String>();
meMap.put("Color1", "Red");
meMap.put("Color2", "Blue");
meMap.put("Color3", "Green");
meMap.put("Color4", "White");
Iterator myVeryOwnIterator = meMap.values().iterator();
while(myVeryOwnIterator.hasNext()) {
Toast.makeText(getBaseContext(), myVeryOwnIterator.next(), Toast.LENGTH_SHORT).show();
}
you can also do this query...!
sqlContext.sql("""
select from_unixtime(unix_timestamp('08/26/2016', 'MM/dd/yyyy'), 'yyyy:MM:dd') as new_format
""").show()
If you have a another server with a good version of the same table you can make a copy(table_copy), transfer the table_copy to the problem server. Then delete the problem table and rename table_copy to table.
div.section > div
The solution that worked for me with default value 0 is the following
ALTER TABLE reservations ADD COLUMN isGuest BIT DEFAULT 0
My frustration in being unable to get a plugin for Notepad++ to work came from not realizing that the DLL for the plugin had to be installed directly in the C:\Program Files (x86)\Notepad++\plugins directory, and NOT into a subfolder below that, named for the plugin.
I was misled because every OTHER plugin that comes with the clean installation of Notepad++ IS installed in its own subfolder under \plugins.
\plugins
+ DSpellCheck
+ MIME Tools
+ Converter (etc.)
I tried that with the plugin I was attempting to install (autosave), and just couldn't get it to work. But then thanks to an answer from Steve Chambers above, I tried putting the DLL directly into the \plugins folder and PRESTO! It Works.
Hope this helps save someone else similar frustrations!
The best method is given in the docs
$('#myModal').on('shown.bs.modal', function () {
// will only come inside after the modal is shown
});
for more info refer http://getbootstrap.com/javascript/#modals
include this! on your page where you want to change the colors save as .php
<?php include("includes/navbar.php"); ?>
then add a new file in an includes folder.
includes/navbar.php
<div <?php //Using REQUEST_URI
$currentpage = $_SERVER['REQUEST_URI'];
if(preg_match("/index/i", $currentpage)||($currentpage=="/"))
echo " class=\"navbarorange/*the css class for your nav div*/\" ";
elseif(preg_match("/about/*or second page name*//i", $currentpage))
echo " class=\"navbarpink\" ";
elseif(preg_match("/contact/* or edit 3rd page name*//i", $currentpage))
echo " class=\"navbargreen\" ";?> >
</div>
As of MySql 5.1 version reference
BIT(M) = approximately (M+7)/8 bytes,
BIT(1) = (1+7)/8 = 1 bytes (8 bits)
=========================================================================
TINYINT(1) take 8 bits.
https://dev.mysql.com/doc/refman/5.7/en/storage-requirements.html#data-types-storage-reqs-numeric
It signifies string interpolation.
It will protect you because it is adding compilation time protection on the string evaluation.
You will no longer get an exception with string.Format("{0}{1}",secondParamIsMissing)
Using http.createServer
is very low-level and really not useful for creating web applications as-is.
A good framework to use on top of it is Express, and I would seriously suggest using it. You can install it using npm install express
.
When you have, you can create a basic application to handle your form:
var express = require('express');
var bodyParser = require('body-parser');
var app = express();
//Note that in version 4 of express, express.bodyParser() was
//deprecated in favor of a separate 'body-parser' module.
app.use(bodyParser.urlencoded({ extended: true }));
//app.use(express.bodyParser());
app.post('/myaction', function(req, res) {
res.send('You sent the name "' + req.body.name + '".');
});
app.listen(8080, function() {
console.log('Server running at http://127.0.0.1:8080/');
});
You can make your form point to it using:
<form action="http://127.0.0.1:8080/myaction" method="post">
The reason you can't run Node on port 80 is because there's already a process running on that port (which is serving your index.html
). You could use Express to also serve static content, like index.html
, using the express.static
middleware.
If you use the Guava library:
Set<Foo> set = Sets.newHashSet(list);
or, better:
Set<Foo> set = ImmutableSet.copyOf(list);
Use the splat operator(*)
By default, * operator prints list separated by space. Use sep
operator to specify the delimiter
print(*sys.path, sep = "\n")
Just document it here
on Windows you need to escape the \
character:
"e:\\directory\\-"
I'm answering only the part of the question about zbar
installation.
I spent nearly half an hour a few hours to make it work on Windows + Python 2.7 64-bit, so here are additional notes to the accepted answer:
Install it with pip install zbar-0.10-cp27-none-win_amd64.whl
If Python reports an ImportError: DLL load failed: The specified module could not be found.
when doing import zbar
, then you will just need to install the Visual C++ Redistributable Packages for VS 2013 (I spent a lot of time here, trying to recompile unsuccessfully...)
Required too: libzbar64-0.dll must be in a folder which is in the PATH. In my case I copied it to "C:\Python27\libzbar64-0.dll" (which is in the PATH). If it still does not work, add this:
import os
os.environ['PATH'] += ';C:\\Python27'
import zbar
PS: Making it work with Python 3.x is even more difficult: Compile zbar for Python 3.x.
PS2: I just tested pyzbar with pip install pyzbar
and it's MUCH easier, it works out-of-the-box (the only thing is you need to have VC Redist 2013 files installed). It is also recommended to use this library in this pyimagesearch.com article.
I used this to sort a gallery of images where the sort array would be altered by an ajax call. Hopefully it can be useful to someone.
var myArray = ['2', '3', '1'];_x000D_
var elArray = [];_x000D_
_x000D_
$('.imgs').each(function() {_x000D_
elArray[$(this).data('image-id')] = $(this);_x000D_
});_x000D_
_x000D_
$.each(myArray,function(index,value){_x000D_
$('#container').append(elArray[value]); _x000D_
});
_x000D_
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>_x000D_
<div id='container'>_x000D_
<div class="imgs" data-image-id='1'>1</div>_x000D_
<div class="imgs" data-image-id='2'>2</div>_x000D_
<div class="imgs" data-image-id='3'>3</div>_x000D_
</div>
_x000D_
Fiddle: http://jsfiddle.net/ruys9ksg/
/proc/partitions
will list all the block devices and partitions that the system recognizes. You can then try using file -s <device>
to determine what kind of filesystem is present on the partition, if any.
You have a couple of options:
Sorry to post answer for very old thread. my answer may help other in future.
string[] TobeDistinct = {"Name","City","State"};
DataTable dtDistinct = GetDistinctRecords(DTwithDuplicate, TobeDistinct);
//Following function will return Distinct records for Name, City and State column.
public static DataTable GetDistinctRecords(DataTable dt, string[] Columns)
{
DataTable dtUniqRecords = new DataTable();
dtUniqRecords = dt.DefaultView.ToTable(true, Columns);
return dtUniqRecords;
}
this helped me to fix current issue
If you're using macOS Sierra 10.12.2 or later, you will need to modify your ~/.ssh/config file to automatically load keys into the ssh-agent and store passphrases in your keychain.
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
On Windows, just check in the windows task manager if there are any other adb processes running.
Or run adb kill-server
If yes, just kill it & then perform the adb start-server
command.
I hope, it should solve the problem.
Not sure why, but in my case, the reason was because I was running Anaconda terminal instead of the CMD.
After I use CMD and update the path settings as mentioned by all comments above the issue solved on my side.
try this
private void Form1_Load(object sender, EventArgs e)
{
notifyIcon1.BalloonTipText = "Application Minimized.";
notifyIcon1.BalloonTipTitle = "test";
}
private void Form1_Resize(object sender, EventArgs e)
{
if (WindowState == FormWindowState.Minimized)
{
ShowInTaskbar = false;
notifyIcon1.Visible = true;
notifyIcon1.ShowBalloonTip(1000);
}
}
private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
{
ShowInTaskbar = true;
notifyIcon1.Visible = false;
WindowState = FormWindowState.Normal;
}
try this approach if you know your object client name ( it is not important that it is Button or TextBox )
$('#ButtonName').removeAttr('onclick');
$('#ButtonName').attr('onClick', 'FunctionName(this);');
try this ones if you want add onClick event to a server object with JQuery
$('#' + '<%= ButtonName.ClientID %>').removeAttr('onclick');
$('#' + '<%= ButtonName.ClientID %>').attr('onClick', 'FunctionName(this);');
Something along the lines of:
yourString = yourString.replace ( /[^0-9]/g, '' );
Here is a one-liner solution that works for as low as minSdkVersion 14
which you should insert in you res/styles.xml
:
<item name="android:windowAnimationStyle">@null</item>
like so:
<resources>
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
...
<item name="android:windowAnimationStyle">@null</item>
</style>
...
</resources>
Cheers!
So if you're like me and developing a website on localhost where you're trying to fetch data from Laravel API and use it in your Vue front-end, and you see this problem, here is how I solved it:
php artisan make:middleware Cors
. This will create app/Http/Middleware/Cors.php
for you.Add the following code inside the handles
function in Cors.php
:
return $next($request)
->header('Access-Control-Allow-Origin', '*')
->header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
In app/Http/kernel.php
, add the following entry in $routeMiddleware
array:
‘cors’ => \App\Http\Middleware\Cors::class
(There would be other entries in the array like auth
, guest
etc. Also make sure you're doing this in app/Http/kernel.php
because there is another kernel.php
too in Laravel)
Add this middleware on route registration for all the routes where you want to allow access, like this:
Route::group(['middleware' => 'cors'], function () {
Route::get('getData', 'v1\MyController@getData');
Route::get('getData2', 'v1\MyController@getData2');
});
mounted()
function and not in data()
. Also make sure you use http://
or https://
with the URL in your fetch()
call.Full credits to Pete Houston's blog article.
I suggest you to edit your .vimrc file, for running a list of commands. Edit your .vimrc file, like this :
cat >> ~/.vimrc <<EOF
set ffs=unix
set encoding=utf-8
set fileencoding=utf-8
set listchars=eol:¶
set list
EOF
When you're executing vim, the commands into .vimrc are executed, and you can see this example :
My line with CRLF eol here ^M¶
we can access/pass arguments/variables from one class to another class using object reference.
#Class1
class Test:
def __init__(self):
self.a = 10
self.b = 20
self.add = 0
def calc(self):
self.add = self.a+self.b
#Class 2
class Test2:
def display(self):
print('adding of two numbers: ',self.add)
#creating object for Class1
obj = Test()
#invoking calc method()
obj.calc()
#passing class1 object to class2
Test2.display(obj)
You need the "correlation id" (the "AS SS" thingy) on the sub-select to reference the fields in the "ON" condition. The id's assigned inside the sub select are not usable in the join.
SELECT
cs.CUSID
,dp.DEPID
FROM
CUSTMR cs
LEFT OUTER JOIN (
SELECT
DEPID
,DEPNAME
FROM
DEPRMNT
WHERE
dp.DEPADDRESS = 'TOKYO'
) ss
ON (
ss.DEPID = cs.CUSID
AND ss.DEPNAME = cs.CUSTNAME
)
WHERE
cs.CUSID != ''
How do I get the text value of a selected option
Select elements typically have two values that you want to access.
First there's the value to be sent to the server, which is easy:
$( "#myselect" ).val();
// => 1
The second is the text value of the select.
For example, using the following select box:
<select id="myselect">
<option value="1">Mr</option>
<option value="2">Mrs</option>
<option value="3">Ms</option>
<option value="4">Dr</option>
<option value="5">Prof</option>
</select>
If you wanted to get the string "Mr" if the first option was selected (instead of just "1") you would do that in the following way:
$( "#myselect option:selected" ).text();
// => "Mr"
Give this a go:
string format = "{0} / {1} / {2} {3}";
string date = string.Format(format,mon.ToString(),da.ToString(),yer.ToString();
Console.WriteLine(date);
In fact, there's probably a way to format it automatically without even doing it yourself.
Check out http://msdn.microsoft.com/en-us/library/8kb3ddd4.aspx
echo "<pre/>"; print_r($array);
Replace @RunWith(MockitoJUnitRunner.class)
with @RunWith(MockitoJUnitRunner.Silent.class)
.
this can be done by extending org.springframework.cache.interceptor.CacheInterceptor , and override "doPut" method - org.springframework.cache.interceptor.AbstractCacheInvoker your override logic should use the cache provider put method that knows to set TTL for cache entry (in my case I use HazelcastCacheManager)
@Autowired
@Qualifier(value = "cacheManager")
private CacheManager hazelcastCacheManager;
@Override
protected void doPut(Cache cache, Object key, Object result) {
//super.doPut(cache, key, result);
HazelcastCacheManager hazelcastCacheManager = (HazelcastCacheManager) this.hazelcastCacheManager;
HazelcastInstance hazelcastInstance = hazelcastCacheManager.getHazelcastInstance();
IMap<Object, Object> map = hazelcastInstance.getMap("CacheName");
//set time to leave 18000 secondes
map.put(key, result, 18000, TimeUnit.SECONDS);
}
on your cache configuration you need to add those 2 bean methods , creating your custom interceptor instance .
@Bean
public CacheOperationSource cacheOperationSource() {
return new AnnotationCacheOperationSource();
}
@Primary
@Bean
public CacheInterceptor cacheInterceptor() {
CacheInterceptor interceptor = new MyCustomCacheInterceptor();
interceptor.setCacheOperationSources(cacheOperationSource());
return interceptor;
}
This solution is good when you want to set the TTL on the entry level , and not globally on cache level
As you want to exclude both words, you need a conjuction:
^/(?!ignoreme$)(?!ignoreme2$)[a-z0-9]+$
Now both conditions must be true (neither ignoreme nor ignoreme2 is allowed) to have a match.
I ran into the same situation where commands such as git diff origin
or git diff origin master
produced the error reported in the question, namely Fatal: ambiguous argument...
To resolve the situation, I ran the command
git symbolic-ref refs/remotes/origin/HEAD refs/remotes/origin/master
to set refs/remotes/origin/HEAD to point to the origin/master branch.
Before running this command, the output of git branch -a
was:
* master
remotes/origin/master
After running the command, the error no longer happened and the output of git branch -a
was:
* master
remotes/origin/HEAD -> origin/master
remotes/origin/master
(Other answers have already identified that the source of the error is HEAD not being set for origin. But I thought it helpful to provide a command which may be used to fix the error in question, although it may be obvious to some users.)
Additional information:
For anybody inclined to experiment and go back and forth between setting and unsetting refs/remotes/origin/HEAD, here are some examples.
To unset:
git remote set-head origin --delete
To set:
(additional ways, besides the way shown at the start of this answer)
git remote set-head origin master
to set origin/head explicitly
OR
git remote set-head origin --auto
to query the remote and automatically set origin/HEAD to the remote's current branch.
References:
git remote --help
see set-head descriptiongit symbolic-ref --help
This a very simple recursive approach.
double mySqrt(double v, double test) {
if (abs(test * test - v) < 0.0001) {
return test;
}
double highOrLow = v / test;
return mySqrt(v, (test + highOrLow) / 2.0);
}
double mySqrt(double v) {
return mySqrt(v, v/2.0);
}
By default, np.genfromtxt
uses dtype=float
: that's why you string columns are converted to NaNs because, after all, they're Not A Number...
You can ask np.genfromtxt
to try to guess the actual type of your columns by using dtype=None
:
>>> from StringIO import StringIO
>>> test = "a,1,2\nb,3,4"
>>> a = np.genfromtxt(StringIO(test), delimiter=",", dtype=None)
>>> print a
array([('a',1,2),('b',3,4)], dtype=[('f0', '|S1'),('f1', '<i8'),('f2', '<i8')])
You can access the columns by using their name, like a['f0']
...
Using dtype=None
is a good trick if you don't know what your columns should be. If you already know what type they should have, you can give an explicit dtype
. For example, in our test, we know that the first column is a string, the second an int, and we want the third to be a float. We would then use
>>> np.genfromtxt(StringIO(test), delimiter=",", dtype=("|S10", int, float))
array([('a', 1, 2.0), ('b', 3, 4.0)],
dtype=[('f0', '|S10'), ('f1', '<i8'), ('f2', '<f8')])
Using an explicit dtype
is much more efficient than using dtype=None
and is the recommended way.
In both cases (dtype=None
or explicit, non-homogeneous dtype
), you end up with a structured array.
[Note: With dtype=None
, the input is parsed a second time and the type of each column is updated to match the larger type possible: first we try a bool, then an int, then a float, then a complex, then we keep a string if all else fails. The implementation is rather clunky, actually. There had been some attempts to make the type guessing more efficient (using regexp), but nothing that stuck so far]
Set the main div
CSS to somthing like:
<style>
.wrapper{
display:flex;
flex-direction: column;
}
</style>
<div id="wrapper">
<div id="inner1">This is inner div 1</div>
<div id="inner2">This is inner div 2</div>
</div>
For more flexbox CSS refer: https://css-tricks.com/snippets/css/a-guide-to-flexbox/
In one line and probably faster then arr.indexOf(Math.max.apply(Math, arr))
:
var a = [0, 21, 22, 7];_x000D_
var indexOfMaxValue = a.reduce((iMax, x, i, arr) => x > arr[iMax] ? i : iMax, 0);_x000D_
_x000D_
document.write("indexOfMaxValue = " + indexOfMaxValue); // prints "indexOfMaxValue = 2"
_x000D_
Where:
iMax
- the best index so far (the index of the max element so far, on the first iteration iMax = 0
because the second argument to reduce()
is 0
, we can't omit the second argument to reduce()
in our case)x
- the currently tested element from the arrayi
- the currently tested indexarr
- our array ([0, 21, 22, 7]
)About the reduce()
method (from "JavaScript: The Definitive Guide" by David Flanagan):
reduce() takes two arguments. The first is the function that performs the reduction operation. The task of this reduction function is to somehow combine or reduce two values into a single value, and to return that reduced value.
Functions used with reduce() are different than the functions used with forEach() and map(). The familiar value, index, and array values are passed as the second, third, and fourth arguments. The first argument is the accumulated result of the reduction so far. On the first call to the function, this first argument is the initial value you passed as the second argument to reduce(). On subsequent calls, it is the value returned by the previous invocation of the function.
When you invoke reduce() with no initial value, it uses the first element of the array as the initial value. This means that the first call to the reduction function will have the first and second array elements as its first and second arguments.
you can install the script ;
pip3 install --user advance-touch
After installed, you can use ad command
ad airport/plane/captain.txt
airport/
+-- plane/
¦ +-- captain.txt
Every time I get a Working copy locked error I run a "Clean up". After that everything is back to normal.
On the command line you can execute svn cleanup
which also removes lock files.
Note: Perform this operation on one level up directory and that should resolve most of the times.
All modules in Python have to have a certain directory structure. You can find details here.
Create an empty file called __init__.py
under the model
directory, such that your directory structure would look something like that:
.
+-- project
+-- src
+-- hello-world.py
+-- model
+-- __init__.py
+-- order.py
Also in your hello-world.py
file change the import statement to the following:
from model.order import SellOrder
That should fix it
P.S.: If you are placing your model
directory in some other location (not in the same directory branch), you will have to modify the python path using sys.path
.
Don't forget the String[] args
in your main method. Otherwise, there's no option to run your program:
public static void main(String[] args) {
}
mysqlclient is a fork of MySQLdb and can serve as a drop-in replacement with Python 3.4 support. If you have trouble building it on Windows, you can download it from Christoph Gohlke's Unofficial Windows Binaries for Python Extension Packages
NSTimeInterval seconds; // assume this exists
NSDate* ts_utc = [NSDate dateWithTimeIntervalSince1970:seconds];
NSDateFormatter* df_utc = [[[NSDateFormatter alloc] init] autorelease];
[df_utc setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
[df_utc setDateFormat:@"yyyy.MM.dd G 'at' HH:mm:ss zzz"];
NSDateFormatter* df_local = [[[NSDateFormatter alloc] init] autorelease];
[df_local setTimeZone:[NSTimeZone timeZoneWithName:@"EST"]];
[df_local setDateFormat:@"yyyy.MM.dd G 'at' HH:mm:ss zzz"];
NSString* ts_utc_string = [df_utc stringFromDate:ts_utc];
NSString* ts_local_string = [df_local stringFromDate:ts_utc];
// you can also use NSDateFormatter dateFromString to go the opposite way
Table of formatting string parameters:
https://waracle.com/iphone-nsdateformatter-date-formatting-table/
If performance is a priority, you may want to consider using strftime
Yes. Starting with CPython 3.6, dictionaries return items in the order you inserted them.
Ignore the part that says this is an implementation detail. This behaviour is guaranteed in CPython 3.6 and is required for all other Python implementations starting with Python 3.7.
See this:
In the Microsoft .NET framework, an assembly is a partially compiled code library for use in deployment, versioning and security
In my case I had a panda Series where the values are tuples of characters:
Out[67]
0 (H, H, H, H)
1 (H, H, H, T)
2 (H, H, T, H)
3 (H, H, T, T)
4 (H, T, H, H)
Therefore I could use indexing to filter the series, but to create the index I needed apply
. My condition is "find all tuples which have exactly one 'H'".
series_of_tuples[series_of_tuples.apply(lambda x: x.count('H')==1)]
I admit it is not "chainable", (i.e. notice I repeat series_of_tuples
twice; you must store any temporary series into a variable so you can call apply(...) on it).
There may also be other methods (besides .apply(...)
) which can operate elementwise to produce a Boolean index.
Many other answers (including accepted answer) using the chainable functions like:
.compress()
.where()
.loc[]
[]
These accept callables (lambdas) which are applied to the Series, not to the individual values in those series!
Therefore my Series of tuples behaved strangely when I tried to use my above condition / callable / lambda, with any of the chainable functions, like .loc[]
:
series_of_tuples.loc[lambda x: x.count('H')==1]
Produces the error:
KeyError: 'Level H must be same as name (None)'
I was very confused, but it seems to be using the Series.count series_of_tuples.count(...)
function , which is not what I wanted.
I admit that an alternative data structure may be better:
This creates a series of strings (i.e. by concatenating the tuple; joining the characters in the tuple on a single string)
series_of_tuples.apply(''.join)
So I can then use the chainable Series.str.count
series_of_tuples.apply(''.join).str.count('H')==1
Probably the most efficient method, if you're using the bash
shell (and you appear to be, based on your comments), is to use the sub-string variant of parameter expansion:
pax> long="USCAGol.blah.blah.blah"
pax> short="${long:0:2}" ; echo "${short}"
US
This will set short
to be the first two characters of long
. If long
is shorter than two characters, short
will be identical to it.
This in-shell method is usually better if you're going to be doing it a lot (like 50,000 times per report as you mention) since there's no process creation overhead. All solutions which use external programs will suffer from that overhead.
If you also wanted to ensure a minimum length, you could pad it out before hand with something like:
pax> long="A"
pax> tmpstr="${long}.."
pax> short="${tmpstr:0:2}" ; echo "${short}"
A.
This would ensure that anything less than two characters in length was padded on the right with periods (or something else, just by changing the character used when creating tmpstr
). It's not clear that you need this but I thought I'd put it in for completeness.
Having said that, there are any number of ways to do this with external programs (such as if you don't have bash
available to you), some of which are:
short=$(echo "${long}" | cut -c1-2)
short=$(echo "${long}" | head -c2)
short=$(echo "${long}" | awk '{print substr ($0, 0, 2)}'
short=$(echo "${long}" | sed 's/^\(..\).*/\1/')
The first two (cut
and head
) are identical for a single-line string - they basically both just give you back the first two characters. They differ in that cut
will give you the first two characters of each line and head
will give you the first two characters of the entire input
The third one uses the awk
sub-string function to extract the first two characters and the fourth uses sed
capture groups (using ()
and \1
) to capture the first two characters and replace the entire line with them. They're both similar to cut
- they deliver the first two characters of each line in the input.
None of that matters if you are sure your input is a single line, they all have an identical effect.
Another simple solution for processing unknown or multiple arguments can be:
class ExampleClass(object):
def __init__(self, x, y, **kwargs):
self.x = x
self.y = y
self.attributes = kwargs
def SomeFunction(self):
if 'something' in self.attributes:
dosomething()
For formatting jsonfile gives spaces
option which you can pass as a parameter:
jsonfile.writeFile(file, obj, {spaces: 2}, function (err) {
console.error(err);
})
Or use jsonfile.spaces = 4
. Read details here.
I would not suggest writing to file each time in the loop, instead construct the JSON object in the loop and write to file outside the loop.
var jsonfile = require('jsonfile');
var obj={
'table':[]
};
for (i=0; i <11 ; i++){
obj.table.push({"id":i,"square":i*i});
}
jsonfile.writeFile('loop.json', obj, {spaces:2}, function(err){
console.log(err);
});
When putting resource files in another location is not the best solution you can use:
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.java</exclude>
</excludes>
</resource>
</resources>
<build>
For example when resources files (e.g. jaxb.properties) goes deep inside packages along with Java classes.
I just type brew -v in terminal if you have it it will respond with the version number installed.
In view file (HTML or EJS)
<div ng-repeat="item in vm.itemList | filter: myFilter > </div>
and In Controller
$scope.myFilter = function(item) {
return (item.propertyA === 'value' || item.propertyA === 'value');
}
Gooye if it's possible to use Joda Time in your project then this code works for me:
String dateStr = "2012-10-01T09:45:00.000+02:00";
String customFormat = "yyyy-MM-dd HH:mm:ss";
DateTimeFormatter dtf = ISODateTimeFormat.dateTime();
LocalDateTime parsedDate = dtf.parseLocalDateTime(dateStr);
String dateWithCustomFormat = parsedDate.toString(DateTimeFormat.forPattern(customFormat));
System.out.println(dateWithCustomFormat);
Yes - it means you're using \n
as the line break instead of \r\n
. Notepad only understands the latter.
(Note that Environment.NewLine
suggested by others is fine if you want the platform default - but if you're serving from Mono and definitely want \r\n
, you should specify it explicitly.)
function getStringReminder(str, substr, occ) {
let index = str.indexOf(substr);
let preindex = '';
let i = 1;
while (index !== -1) {
preIndex = index;
if (occ == i) {
break;
}
index = str.indexOf(substr, index + 1)
i++;
}
return preIndex;
}
console.log(getStringReminder('bcdefgbcdbcd', 'bcd', 3));
Dictionary can contain values and values can be added by using update() method. You want your system to create variables, so you should know where to keep.
variables = {}
break_condition= True # Dont forget to add break condition to while loop if you dont want your system to go crazy.
name = “variable”
i = 0
name = name + str(i) #this will be your variable name.
while True:
value = 10 #value to assign
variables.update(
{name:value})
if break_condition == True:
break
Making a request to
C:\wnmp\curl>curl.exe --trace-ascii -H 'project1.loc' -d "uuid=d99a49d846d5ae570
667a00825373a7b5ae8e8e2" http://project1.loc/Users/getSettings.xml
Resulted in the -H
log file containing:
== Info: Could not resolve host: 'project1.loc'; Host not found
== Info: Closing connection #0
== Info: About to connect() to project1.loc port 80 (#0)
== Info: Trying 127.0.0.1... == Info: connected
== Info: Connected to project1.loc (127.0.0.1) port 80 (#0)
=> Send header, 230 bytes (0xe6)
0000: POST /Users/getSettings.xml HTTP/1.1
0026: User-Agent: curl/7.19.5 (i586-pc-mingw32msvc) libcurl/7.19.5 Ope
0066: nSSL/1.0.0a zlib/1.2.3
007e: Host: project1.loc
0092: Accept: */*
009f: Content-Length: 45
00b3: Content-Type: application/x-www-form-urlencoded
00e4:
=> Send data, 45 bytes (0x2d)
0000: uuid=d99a49d846d5ae570667a00825373a7b5ae8e8e2
<= Recv header, 24 bytes (0x18)
0000: HTTP/1.1 403 Forbidden
<= Recv header, 22 bytes (0x16)
0000: Server: nginx/0.7.66
<= Recv header, 37 bytes (0x25)
0000: Date: Wed, 11 Aug 2010 15:37:06 GMT
<= Recv header, 25 bytes (0x19)
0000: Content-Type: text/html
<= Recv header, 28 bytes (0x1c)
0000: Transfer-Encoding: chunked
<= Recv header, 24 bytes (0x18)
0000: Connection: keep-alive
<= Recv header, 25 bytes (0x19)
0000: X-Powered-By: PHP/5.3.2
<= Recv header, 56 bytes (0x38)
0000: Set-Cookie: SESSION=m9j6caghb223uubiddolec2005; path=/
<= Recv header, 57 bytes (0x39)
0000: P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"
<= Recv header, 2 bytes (0x2)
0000:
<= Recv data, 118 bytes (0x76)
0000: 6b
0004: <html><head><title>HTTP/1.1 403 Forbidden</title></head><body><h
0044: 1>HTTP/1.1 403 Forbidden</h1></body></html>
0071: 0
0074:
== Info: Connection #0 to host project1.loc left intact
== Info: Closing connection #0
My hosts file looks like:
# Copyright (c) 1993-1999 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host
127.0.0.1 localhost
...
...
127.0.0.1 project1.loc
LayoutInflater
is used to generate dynamic views of the XML for the ListView
item or in onCreateView
of the fragment.
ConvertView
is basically used to recycle the views which are not in the view currently. Say you have a scrollable ListView
. On scrolling down or up, the convertView
gives the view which was scrolled. This reusage saves memory.
The parent parameter of the getView()
method gives a reference to the parent layout which has the listView. Say you want to get the Id of any item in the parent XML you can use:
ViewParent nv = parent.getParent();
while (nv != null) {
if (View.class.isInstance(nv)) {
final View button = ((View) nv).findViewById(R.id.remove);
if (button != null) {
// FOUND IT!
// do something, then break;
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
Log.d("Remove", "Remove clicked");
((Button) button).setText("Hi");
}
});
}
break;
}
}
Try to comment string "sql-mode=..." in file my.cnf and than restart mysql.
In this course(https://www.codeschool.com/courses/shaping-up-with-angular-js) they explain how to use "this" and many other stuff.
If you add method to the controller through "this" method, you have to call it in the view with controller's name "dot" your property or method.
For example using your controller in the view you may have code like this:
<div data-ng-controller="YourController as aliasOfYourController">
Your first pane is {{aliasOfYourController.panes[0]}}
</div>
of course it depends on how you implement it but perhaps this is a good start:
using System.Windows.Forms;
public class AutoCompleteTextBox : TextBox {
private string[] database;//put here the strings of the candidates of autocomplete
private bool changingText = false;
protected override void OnTextChanged (EventArgs e) {
if(!changingText && database != null) {
//searching the first candidate
string typed = this.Text.Substring(0,this.SelectionStart);
string candidate = null;
for(int i = 0; i < database.Length; i++)
if(database[i].Substring(0,this.SelectionStart) == typed) {
candidate = database[i].Substring(this.SelectionStart,database[i].Length);
break;
}
if(candidate != null) {
changingText = true;
this.Text = typed+candidate;
this.SelectionStart = typed.Length;
this.SelectionLength = candidate.Length;
}
}
else if(changingText)
changingText = false;
base.OnTextChanged(e);
}
}
I'm not sure this is working very well, but I think the base of this code is good enough.
Not exactly an answer, but I have never heard of a way to do this in Apache itself. I guess it might be possible with an extension module, but I don't know whether one has been written.
One concern is that POST data can be pretty large, and if you don't put some kind of limit on how much is being logged, you might run out of disk space after a while. It's a possible route for hackers to mess with your server.
To properly select the elements using the logical operations that you've stated, you just need jQuery.filter()
for the AND
operation, not "special filter functions". You also need jQuery.add()
for the OR
operation.
var elements = $('[myc="blue"]').filter('[myid="1"').add('[myid="3"');
Alternatively, it is possible to accomplish using shorthand in a single selector, where jamming selectors together acts as an AND
and separating with a comma acts as an OR
:
var elements = $('[myc="blue"][myid="1"], [myid="3"]');
Not tested, but probably something like if(preg_match("/^[0-9,]+$/", $a)) $a = str_replace(...)
Do it the other way around:
$a = "1,435";
$b = str_replace( ',', '', $a );
if( is_numeric( $b ) ) {
$a = $b;
}
The easiest would be:
$var = intval(preg_replace('/[^\d.]/', '', $var));
or if you need float:
$var = floatval(preg_replace('/[^\d.]/', '', $var));
],\s*
],\n
Right click on 1st file click "Select for compare".
Click 2nd file click "Compare with selected"
For .net 4.0
Add a reference to System.net.dll
to the project with using System.Net;
then use the following extensions
// Html encode/decode
public static string HtmDecode(this string htmlEncodedString)
{
if(htmlEncodedString.Length > 0)
{
return System.Net.WebUtility.HtmlDecode(htmlEncodedString);
}
else
{
return htmlEncodedString;
}
}
public static string HtmEncode(this string htmlDecodedString)
{
if(htmlDecodedString.Length > 0)
{
return System.Net.WebUtility.HtmlEncode(htmlDecodedString);
}
else
{
return htmlDecodedString;
}
}
You get into a difficult situation when it is necessary to understand how scopes, ngRepeat and ngModel with NgModelController work. Also try to use 1.0.3 version. Your example will work a little differently.
You can simply use solution provided by jm-
But if you want to deal with the situation more deeply, you have to understand:
How your example "Binding to each element directly" works for AngularJS 1.0.3:
'f'
into input;ngModelController
changes model for item scope (names array is not changed) => name == 'Samf'
, names == ['Sam', 'Harry', 'Sally']
;$digest
loop is started;ngRepeat
replaces model value from item scope ('Samf'
) by value from unchanged names array ('Sam'
);ngModelController
rerenders input with actual model value ('Sam'
).How your example "Indexing into the array" works:
'f'
into input;ngModelController
changes item in names array
=> `names == ['Samf', 'Harry', 'Sally'];ngRepeat
can't find 'Samf'
in cache;ngRepeat
creates new scope, adds new div element with new input (that is why the input field loses focus - old div with old input is replaced by new div with new input);Also, you can try to use AngularJS Batarang and see how changes $id of the scope of div with input in which you enter.
Based on Apple Documentation, this has changed a bit as of iOS 6.0.
1) You should request access to the user's calendar via "requestAccessToEntityType:completion:" and execute the event handling inside of a block.
2) You need to commit your event now or pass the "commit" param to your save/remove call
Everything else stays the same...
Add the EventKit framework and #import <EventKit/EventKit.h>
to your code.
In my example, I have a NSString *savedEventId instance property.
To add an event:
EKEventStore *store = [EKEventStore new];
[store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (!granted) { return; }
EKEvent *event = [EKEvent eventWithEventStore:store];
event.title = @"Event Title";
event.startDate = [NSDate date]; //today
event.endDate = [event.startDate dateByAddingTimeInterval:60*60]; //set 1 hour meeting
event.calendar = [store defaultCalendarForNewEvents];
NSError *err = nil;
[store saveEvent:event span:EKSpanThisEvent commit:YES error:&err];
self.savedEventId = event.eventIdentifier; //save the event id if you want to access this later
}];
Remove the event:
EKEventStore* store = [EKEventStore new];
[store requestAccessToEntityType:EKEntityTypeEvent completion:^(BOOL granted, NSError *error) {
if (!granted) { return; }
EKEvent* eventToRemove = [store eventWithIdentifier:self.savedEventId];
if (eventToRemove) {
NSError* error = nil;
[store removeEvent:eventToRemove span:EKSpanThisEvent commit:YES error:&error];
}
}];
This adds events to your default calendar, if you have multiple calendars then you'll have find out which one that is
Swift version
You need to import the EventKit framework
import EventKit
Add event
let store = EKEventStore()
store.requestAccessToEntityType(.Event) {(granted, error) in
if !granted { return }
var event = EKEvent(eventStore: store)
event.title = "Event Title"
event.startDate = NSDate() //today
event.endDate = event.startDate.dateByAddingTimeInterval(60*60) //1 hour long meeting
event.calendar = store.defaultCalendarForNewEvents
do {
try store.saveEvent(event, span: .ThisEvent, commit: true)
self.savedEventId = event.eventIdentifier //save event id to access this particular event later
} catch {
// Display error to user
}
}
Remove event
let store = EKEventStore()
store.requestAccessToEntityType(EKEntityTypeEvent) {(granted, error) in
if !granted { return }
let eventToRemove = store.eventWithIdentifier(self.savedEventId)
if eventToRemove != nil {
do {
try store.removeEvent(eventToRemove, span: .ThisEvent, commit: true)
} catch {
// Display error to user
}
}
}
Put this in your activity declaration in manifest file
<activity android:windowSoftInputMode="adjustPan|adjustResize"> </activity>
or if you want you can add in onCreate() method of your activity
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
<script>
$(document).ready(function(){
$(window).on('resize', function() {
jQuery("#grid").setGridWidth($('#fill').width(), false);
jQuery("#grid").setGridHeight($('#fill').height(),true);
}).trigger('resize');
});
</script>
Are you talking about when you click on an input box, rather than just hover over it? This fixed it for me:
input:focus {
outline: none;
border: specify yours;
}
For generate unique id's:
const uid = () =>
String(
Date.now().toString(32) +
Math.random().toString(32) +
Math.random().toString(32)
).replace(/\./g, '')
For check that is works:
var size = 500000
var arr = new Array(size)
.fill(0)
.map(() => uid())
var b = new Set(arr)
console.log(
size === b.size ? 'all ids are unique' : `not unique records ${size - b.size}`
)
You can use the function toprettyxml()
from xml.dom.minidom
in order to do that:
def prettify(elem):
"""Return a pretty-printed XML string for the Element.
"""
rough_string = ElementTree.tostring(elem, 'utf-8')
reparsed = minidom.parseString(rough_string)
return reparsed.toprettyxml(indent="\t")
The idea is to print your Element
in a string, parse it using minidom and convert it again in XML using the toprettyxml
function.
Source: http://pymotw.com/2/xml/etree/ElementTree/create.html
For already created files:
find . \( -type f -exec chmod g=r,o=r {} \; \) , \( -type d -exec chmod g=rx,o=rx {} \; \)
For future created files:
sudo nano /etc/profile
And set:
umask 022
Common modes are:
Assume MacVim is installed in the Application folder.
Instead of adding MacVim path to your environment, create a link by typing this in terminal:
sudo ln -s /Applications/MacVim.app/Contents/bin/mvim /usr/local/bin/mvim
Then, open a new terminal window/tab and type mvim
.
Ok, I think I have worked out "git stash unapply". It's more complex than git apply --reverse
because you need reverse merging action in case there was any merging done by the git stash apply
.
The reverse merge requires that all current changes be pushed into the index:
git add -u
Then invert the merge-recursive
that was done by git stash apply
:
git merge-recursive stash@{0}: -- $(git write-tree) stash@{0}^1
Now you will be left with just the non-stash changes. They will be in the index. You can use git reset
to unstage your changes if you like.
Given that your original git stash apply
failed I assume the reverse might also fail since some of the things it wants to undo did not get done.
Here's an example showing how the working copy (via git status
) ends up clean again:
$ git status
# On branch trunk
nothing to commit (working directory clean)
$ git stash apply
Auto-merging foo.c
# On branch trunk
# Changed but not updated:
# (use "git add <file>..." to update what will be committed)
# (use "git checkout -- <file>..." to discard changes in working directory)
#
# modified: foo.c
#
no changes added to commit (use "git add" and/or "git commit -a")
$ git add -u
$ git merge-recursive stash@{0}: -- $(git write-tree) stash@{0}^1
Auto-merging foo.c
$ git status
# On branch trunk
nothing to commit (working directory clean)
Drop in the image in /res/drawable folder. Then in Eclipse Menu, do ->Project -> Clean. This will do a clean build if set to build automatically.
So, my problem was the same. The fix was to change the command section in the docker-compose.yml
.
From
command: crontab /etc/crontab && tail -f /etc/crontab
To
command: crontab /etc/crontab
command: tail -f /etc/crontab
The problem was the '&&' between the commands. After deleting this, it was all fine.
<script type="text/javascript">
window.onbeforeunload = function(evt) {
var message = 'Are you sure you want to leave?';
if (typeof evt == 'undefined') {
evt = window.event;
}
if (evt) {
evt.returnValue = message;
}
return message;
}
</script>
refer from http://www.codeprojectdownload.com
None of supposed high-voted solutions worked for me correctly. Each leads to a bug when after opening and closing (by clicking on other elements) the popover for the first time, it doesn't open again, until you make two clicks on the triggering link instead of one.
So i modified it slightly:
$(document).on('click', function (e) {
var
$popover,
$target = $(e.target);
//do nothing if there was a click on popover content
if ($target.hasClass('popover') || $target.closest('.popover').length) {
return;
}
$('[data-toggle="popover"]').each(function () {
$popover = $(this);
if (!$popover.is(e.target) &&
$popover.has(e.target).length === 0 &&
$('.popover').has(e.target).length === 0)
{
$popover.popover('hide');
} else {
//fixes issue described above
$popover.popover('toggle');
}
});
})
This problem is caused (as others have stated) by model attributes being persisted into the query string - this is usually undesirable and is at risk of creating security holes as well as ridiculous query strings. My usual solution is to never use Strings for redirects in Spring MVC, instead use a RedirectView which can be configured not to expose model attributes (see: http://static.springsource.org/spring/docs/3.1.x/javadoc-api/org/springframework/web/servlet/view/RedirectView.html)
RedirectView(String url, boolean contextRelative, boolean http10Compatible, boolean exposeModelAttributes)
So I tend to have a util method which does a 'safe redirect' like:
public static RedirectView safeRedirect(String url) {
RedirectView rv = new RedirectView(url);
rv.setExposeModelAttributes(false);
return rv;
}
The other option is to use bean configuration XML:
<bean id="myBean" class="org.springframework.web.servlet.view.RedirectView">
<property name="exposeModelAttributes" value="false" />
<property name="url" value="/myRedirect"/>
</bean>
Again, you could abstract this into its own class to avoid repetition (e.g. SafeRedirectView).
A note about 'clearing the model' - this is not the same as 'not exposing the model' in all circumstances. One site I worked on had a lot of filters which added things to the model, this meant that clearing the model before redirecting would not prevent a long query string. I would also suggest that 'not exposing model attributes' is a more semantic approach than 'clearing the model before redirecting'.
Another way that might be easier for newcomers:
some¦
code
here
Place the cursor on the first line, e.g. by
gg
and type the following to get into insert mode and add your text:
I / / Space
// ¦some
code
here
Press Esc to get back to command mode and use the digraph:
j . j .
// some
// code
//¦here
j is a motion command to go down one line and . repeats the last editing command you made.
dummyElem.focus() where dummyElem is a hidden object (e.g. has negative zIndex)?
Anything wrong with a one-liner?
$ perl -pi.bak -e 's/blue/red/g' *_classification.dat
Explanation
-p
processes, then prints <>
line by line-i
activates in-place editing. Files are backed up using the .bak
extensionThe way I would do it is to create paragraph tags where you want your error messages with the same class and show them when the data is invalid. Here is my fiddle
if ($('#email').val() == '' || !$('#password').val() == '') {
$('.loginError').show();
return false;
}
I also added the paragraph tags below the email and password inputs
<p class="loginError" style="display:none;">please enter your email address or password.</p>
For Sourcetree users: If you want to ignore a specific folder, just select a file from this folder, right-click on it and do "Ignore...". You will have a pop-up menu where you can ignore "Ignore everything beneath: <YOUR UNWANTED FOLDER>"
If you have the "Ignore" option greyed out, you have to select the "Stop Tracking" option. After that the file will be added to Staged files with a minus sign on red background icon and the file's icon in Unstaged files list will change to a question sign on a violet background. Now in Unstaged files list, the "Ignore" option is enabled again. Just do as described above.
python looks for .UFT-8, but you probably have .utf8 try installing the .UFT-8 packages with sudo dpkg-reconfigure locales
I was able to get this to work with the command sleep infinity
in Kubernetes, which will keep the container open. See this answer for alternatives when that doesn't work.
I just added class="span2"
to the <li>
for the dropdown items and that worked.
Test with [char]9, such as:
$Tab = [char]9
Write-Output "$Tab hello"
Output:
hello
Xamarin.Forms
supports multiple navigation hosts built-in:
NavigationPage
, where the next page slide in,TabbedPage
, the one you don't likeCarouselPage
, that allows for switching left and right to next/prev pages.On top of this, all pages also supports PushModalAsync()
which just push a new page on top of the existing one.
At the very end, if you want to make sure the user can't get back to the previous page (using a gesture or the back hardware button), you can keep the same Page
displayed and replace its Content
.
The suggested options of replacing the root page works as well, but you'll have to handle that differently for each platform.
for those who want some official document to confirm the behavior
Variables in make can come from the environment in which make is run. Every environment variable that make sees when it starts up is transformed into a make variable with the same name and value. However, an explicit assignment in the makefile, or with a command argument, overrides the environment. (If the ‘-e’ flag is specified, then values from the environment override assignments in the makefile.
https://www.gnu.org/software/make/manual/html_node/Environment.html
format : "DD/MM/YYYY" should resolve your issue. If you need more help regarding available formats, please visit http://momentjs.com/ which is used by this control internally.
I was facing an issue where this "format" thing was working fine on local machine but when I deployed the application on server, the date was not getting populated and the control was empty. when I commented the format code, it started working but then I didn't have the format that I needed. I fixed that issue using globalization entries in web.config.
<system.web>
<globalization
requestEncoding="utf-8"
responseEncoding="utf-8"
culture="en-GB"
uiCulture="en-GB" />
</system.web>
This helped in ensuring that both local & server environments have same culture.
See the InputStream.available()
documentation:
It is particularly important to realize that you must not use this method to size a container and assume that you can read the entirety of the stream without needing to resize the container. Such callers should probably write everything they read to a ByteArrayOutputStream and convert that to a byte array. Alternatively, if you're reading from a file, File.length returns the current length of the file (though assuming the file's length can't change may be incorrect, reading a file is inherently racy).
I believe what you want is:
SELECT ItemName, GROUP_CONCAT(DepartmentId) FROM table_name GROUP BY ItemName
If you're using MySQL
Reference
You can do (pre-Java 8):
List<Enum> enumValues = Arrays.asList(Enum.values());
or
List<Enum> enumValues = new ArrayList<Enum>(EnumSet.allOf(Enum.class));
Using Java 8 features, you can map each constant to its name:
List<String> enumNames = Stream.of(Enum.values())
.map(Enum::name)
.collect(Collectors.toList());
If you need stricter replacement matching, PostgreSQL's regexp_replace
function can match using POSIX regular expression patterns. It has the syntax regexp_replace(source, pattern, replacement [, flags ]).
I will use flags i
and g
for case-insensitive and global matching, respectively. I will also use \m
and \M
to match the beginning and the end of a word, respectively.
There are usually quite a few gotchas when performing regex replacment. Let's see how easy it is to replace a cat with a dog.
SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog');
--> Cat bobdog cat cats catfish
SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'i');
--> dog bobcat cat cats catfish
SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'g');
--> Cat bobdog dog dogs dogfish
SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat', 'dog', 'gi');
--> dog bobdog dog dogs dogfish
SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat', 'dog', 'gi');
--> dog bobcat dog dogs dogfish
SELECT regexp_replace('Cat bobcat cat cats catfish', 'cat\M', 'dog', 'gi');
--> dog bobdog dog cats catfish
SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat\M', 'dog', 'gi');
--> dog bobcat dog cats catfish
SELECT regexp_replace('Cat bobcat cat cats catfish', '\mcat(s?)\M', 'dog\1', 'gi');
--> dog bobcat dog dogs catfish
Even after all of that, there is at least one unresolved condition. For example, sentences that begin with "Cat" will be replaced with lower-case "dog" which break sentence capitalization.
Check out the current PostgreSQL pattern matching docs for all the details.
Given my examples, maybe the safest option would be:
UPDATE table SET field = regexp_replace(field, '\mcat\M', 'dog', 'gi');
In my case, I had a collection of radio buttons that needed to be in a group. I just included a 'Selected' property in the model. Then, in the loop to output the radiobuttons just do...
@Html.RadioButtonFor(m => Model.Selected, Model.Categories[i].Title)
This way, the name is the same for all radio buttons. When the form is posted, the 'Selected' property is equal to the category title (or id or whatever) and this can be used to update the binding on the relevant radiobutton, like this...
model.Categories.Find(m => m.Title.Equals(model.Selected)).Selected = true;
May not be the best way, but it does work.
In my case, where the timezones are not available on the server, this works great:
SELECT CONVERT_TZ(`date_field`,'+00:00',@@global.time_zone) FROM `table`
Note: global.time_zone uses the server timezone. You have to make sure, that it has the desired timezone!
You can use Array.IndexOf()
- note that it will return -1 if the element has not been found and you have to handle this case.
int index = Array.IndexOf(stringArray, value);
Just to add the information I was looking for: pragma mark
is Xcode specific, so if you deal with a C++ project that you open in different IDEs, it does not have any effect there. In Qt Creator, for example, it does not add categories for methods, nor generate any warnings/errors.
EDIT
#pragma
is a preprocessor directive which comes from C programming language. Its purpose is to specify implementation-dependent information to the compiler - that is, each compiler might choose to interpret this directive as it wants. That said, it is rather considered an extension which does not change/influence the code itself. So compilers might as well ignore it.
Xcode is an IDE which takes advantage of #pragma
and uses it in its own specific way. The point is, #pragma
is not Xcode and even Objective-C specific.
Bash variant
raw=$(cat file)
echo $(( ${raw//$'\n'/+} ))
$ wc -l file
10000 file
$ time ./test
323390
real 0m3,096s
user 0m3,095s
sys 0m0,000s
print("the furnace is now " + str(temperature) + "degrees!")
cast it to str
Using the gedit text editor (3.18.3)
\n\s
into Find fieldNote: this doesn't exactly address the OP's original, 7 year old problem but should help some noob linux users (like me) who find their way here from the SE's with similar "how do I get my text all on one line" questions.
I used another solution using CSS attribute selectors to get what you need.
Indicate the HTML attribute you know and put in the relative style you want.
Like below:
input[type="date"]
{
width: 150px;
}
How about either of:
>>> df
date duration user_id
0 2013-04-01 30 0001
1 2013-04-01 15 0001
2 2013-04-01 20 0002
3 2013-04-02 15 0002
4 2013-04-02 30 0002
>>> df.groupby("date").agg({"duration": np.sum, "user_id": pd.Series.nunique})
duration user_id
date
2013-04-01 65 2
2013-04-02 45 1
>>> df.groupby("date").agg({"duration": np.sum, "user_id": lambda x: x.nunique()})
duration user_id
date
2013-04-01 65 2
2013-04-02 45 1
I write this custom function this will help you. But make discussions about the Time complexity.
std::vector<std::string> words;
std::string s;
std::string separator = ",";
while(s.find(separator) != std::string::npos){
separatorIndex = s.find(separator)
vtags.push_back(s.substr(0, separatorIndex ));
words= s.substr(separatorIndex + 1, s.length());
}
words.push_back(s);
If you want to initialize the array to -1
then you can use the following,
memset(array, -1, sizeof(array[0][0]) * row * count)
But this will work 0
and -1
only
Just a wild guess: (not much to go on) but I have had similar problems when, for example, I was using the IIS rewrite module on my local machine (and it worked fine), but when I uploaded to a host that did not have that add-on module installed, I would get a 500 error with very little to go on - sounds similar. It drove me crazy trying to find it.
So make sure whatever options/addons that you might have and be using locally in IIS are also installed on the host.
Similarly, make sure you understand everything that is being referenced/used in your web.config - that is likely the problem area.
If you want to redo the last operation, do the following.
ESC
C + /
)Use the formula by tigeravatar:
=COUNTIF($B$2:$B$5,A2)>0 – tigeravatar Aug 28 '13 at 14:50
as conditional formatting. Highlight column A. Choose conditional formatting by forumula. Enter the formula (above) - this finds values in col B that are also in A. Choose a format (I like to use FILL and a bold color).
To find all of those values, highlight col A. Data > Filter and choose Filter by color.
If any one searching for Angular
you just need to scroll down add this to your div
#scrollMe [scrollTop]="scrollMe.scrollHeight"
<div class="my-list" #scrollMe [scrollTop]="scrollMe.scrollHeight">
</div>
Sometimes you, also, need to clean this folder: C:\Windows\Temp\Temporary ASP.NET
Consider this implementation of foo():
public void foo(final String a) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
System.out.print(a);
}
});
}
Because the Runnable
instance would outlive the method, this wouldn't compile without the final
keyword -- final
tells the compiler that it's safe to take a copy of the reference (to refer to it later). Thus, it's the reference that's considered final, not the value. In other words: As a caller, you can't mess anything up...
I was surprised to not see anyone mention using Number()
. Granted it will parse decimals if provided, so will act differently than parseInt()
, however it already assumes base 10 and will turn "" or even " " in to 0.
Place a breakpoint on the ending brace of main()
. It will get tripped even with multiple return
statements. The only downside is that a call to exit()
won't be caught.
If you're not debugging, follow the advice in Zoidberg's answer and start your program with Ctrl+F5 instead of just F5.
In TypeScript or using Babel, you can import json file in your code.
// Babel
import * as data from './example.json';
const word = data.name;
console.log(word); // output 'testing'
Reference: https://hackernoon.com/import-json-into-typescript-8d465beded79
If you use script to navigate to the page, use the open
method with the target _blank
to open a new window / tab:
<img src="..." alt="..." onclick="window.open('anotherpage.html', '_blank');" />
However, if you want search engines to find the page, you should just wrap the image in a regular link instead.
You could also do:
echo "yes" ?: "no" // Assuming that yes is a variable that can be false.
Instead of:
echo (true) ? "yes" : "no";
Combine them. Literally combine them; attach them together without any punctuation.
$('.myclass[reference="12345"]')
Your first selector looks for elements with the attribute value, contained in elements with the class.
The space is being interpreted as the descendant selector.
Your second selector, like you said, looks for elements with either the attribute value, or the class, or both.
The comma is being interpreted as the multiple selector operator — whatever that means (CSS selectors don't have a notion of "operators"; the comma is probably more accurately known as a delimiter).
Enabling the option Hyper-V Extensible Virtual Switch worked for me. Other solutions have not worked for me. I did it changing the configuration in the HyperV Virtual Switch Manager - DockerNAT - Extensions - Virtual Switch Extensions panel.
After some research and testing, I found that I had some misunderstandings about the lifetime of Docker containers. Simply restarting a container doesn't make Docker use a new image, when the image was rebuilt in the meantime. Instead, Docker is fetching the image only before creating the container. So the state after running a container is persistent.
Therefore, rebuilding and restarting isn't enough. I thought containers works like a service: Stopping the service, do your changes, restart it and they would apply. That was my biggest mistake.
Because containers are permanent, you have to remove them using docker rm <ContainerName>
first. After a container is removed, you can't simply start it by docker start
. This has to be done using docker run
, which itself uses the latest image for creating a new container-instance.
With this knowledge, it's comprehensible why storing data in containers is qualified as bad practice and Docker recommends data volumes/mounting host directorys instead: Since a container has to be destroyed to update applications, the stored data inside would be lost too. This cause extra work to shutdown services, backup data and so on.
So it's a smart solution to exclude those data completely from the container: We don't have to worry about our data, when its stored safely on the host and the container only holds the application itself.
-rf
may not really help youThe docker run
command, has a Clean up switch called -rf
. It will stop the behavior of keeping docker containers permanently. Using -rf
, Docker will destroy the container after it has been exited. But this switch has two problems:
-d
switchWhile the -rf
switch is a good option to save work during development for quick tests, it's less suitable in production. Especially because of the missing option to run a container in the background, which would mostly be required.
We can bypass those limitations by simply removing the container:
docker rm --force <ContainerName>
The --force
(or -f
) switch which use SIGKILL on running containers. Instead, you could also stop the container before:
docker stop <ContainerName>
docker rm <ContainerName>
Both are equal. docker stop
is also using SIGTERM. But using --force
switch will shorten your script, especially when using CI servers: docker stop
throws an error if the container is not running. This would cause Jenkins and many other CI servers to consider the build wrongly as failed. To fix this, you have to check first if the container is running as I did in the question (see containerRunning
variable).
According to this new knowledge, I fixed my script in the following way:
#!/bin/bash
imageName=xx:my-image
containerName=my-container
docker build -t $imageName -f Dockerfile .
echo Delete old container...
docker rm -f $containerName
echo Run new container...
docker run -d -p 5000:5000 --name $containerName $imageName
This works perfectly :)
The following query will select all of the Tables
in the database named DBName
:
USE DBName
GO
SELECT *
FROM sys.Tables
GO
summation
and your other functions are defined after they're used in main
, and so the compiler has made a guess about it's signature; in other words, an implicit declaration has been assumed.
You should declare the function before it's used and get rid of the warning. In the C99 specification, this is an error.
Either move the function bodies before main
, or include method signatures before main
, e.g.:
#include <stdio.h>
int summation(int *, int *, int *);
int main()
{
// ...
It can be resolved as follows:
Go to Project properties.
Then 'Java Compiler' -> Check the box ('Enable project specific settings')
Change the compiler compliance level to '5.0' & click ok.
Do rebuild. It will be resolved.
Also, click the checkbox for "Use default compliance settings".
body{_x000D_
background: #333 url(/images/classy_fabric.png);_x000D_
width: 430px;_x000D_
margin: 0 auto;_x000D_
padding: 30px;_x000D_
}_x000D_
.preview{_x000D_
background: #ccc;_x000D_
width: 415px;_x000D_
height: 430px;_x000D_
border: solid 10px #fff;_x000D_
}_x000D_
_x000D_
input[type='radio'] {_x000D_
-webkit-appearance: none;_x000D_
-moz-appearance: none;_x000D_
width: 25px;_x000D_
height: 25px;_x000D_
margin: 5px 0 5px 5px;_x000D_
background-size: 225px 70px;_x000D_
position: relative;_x000D_
float: left;_x000D_
display: inline;_x000D_
top: 0;_x000D_
border-radius: 3px;_x000D_
z-index: 99999;_x000D_
cursor: pointer;_x000D_
box-shadow: 1px 1px 1px #000;_x000D_
}_x000D_
_x000D_
input[type='radio']:hover{_x000D_
-webkit-filter: opacity(.4);_x000D_
filter: opacity(.4); _x000D_
}_x000D_
_x000D_
.red{_x000D_
background: red;_x000D_
}_x000D_
_x000D_
.red:checked{_x000D_
background: linear-gradient(brown, red)_x000D_
}_x000D_
_x000D_
.green{_x000D_
background: green;_x000D_
}_x000D_
_x000D_
.green:checked{_x000D_
background: linear-gradient(green, lime);_x000D_
}_x000D_
_x000D_
.yellow{_x000D_
background: yellow;_x000D_
}_x000D_
_x000D_
.yellow:checked{_x000D_
background: linear-gradient(orange, yellow);_x000D_
}_x000D_
_x000D_
.purple{_x000D_
background: purple;_x000D_
}_x000D_
_x000D_
.pink{_x000D_
background: pink;_x000D_
}_x000D_
_x000D_
.purple:checked{_x000D_
background: linear-gradient(purple, violet);_x000D_
}_x000D_
_x000D_
.red:checked ~ img{_x000D_
-webkit-filter: opacity(.5) drop-shadow(0 0 0 red);_x000D_
filter: opacity(.5) drop-shadow(0 0 0 red);_x000D_
}_x000D_
_x000D_
.green:checked ~ img{_x000D_
-webkit-filter: opacity(.5) drop-shadow(0 0 0 green);_x000D_
filter: opacity(.5) drop-shadow(0 0 0 green);_x000D_
}_x000D_
_x000D_
.yellow:checked ~ img{_x000D_
-webkit-filter: opacity(.5) drop-shadow(0 0 0 yellow);_x000D_
filter: opacity(.5) drop-shadow(0 0 0 yellow);_x000D_
}_x000D_
_x000D_
.purple:checked ~ img{_x000D_
-webkit-filter: opacity(.5) drop-shadow(0 0 0 purple);_x000D_
filter: opacity(.5) drop-shadow(0 0 0 purple);_x000D_
}_x000D_
_x000D_
.pink:checked ~ img{_x000D_
-webkit-filter: opacity(.5) drop-shadow(0 0 0 pink);_x000D_
filter: opacity(.5) drop-shadow(0 0 0 pink);_x000D_
}_x000D_
_x000D_
_x000D_
img{_x000D_
width: 394px;_x000D_
height: 375px;_x000D_
position: relative;_x000D_
}_x000D_
_x000D_
.label{_x000D_
width: 150px;_x000D_
height: 75px;_x000D_
position: absolute;_x000D_
top: 170px;_x000D_
margin-left: 130px;_x000D_
}_x000D_
_x000D_
::selection{_x000D_
background: #000;_x000D_
}
_x000D_
<div class="preview">_x000D_
<input class='red' name='color' type='radio' />_x000D_
<input class='green' name='color' type='radio' />_x000D_
<input class='pink' name='color' type='radio' />_x000D_
<input checked class='yellow' name='color' type='radio' />_x000D_
<input class='purple' name='color' type='radio' /> _x000D_
<img src="https://i.stack.imgur.com/bd7VJ.png"/>_x000D_
</div>
_x000D_
Select Window->Show View, if it is not shown there then select other. Under General you can see Project Explorer.
You can use the SQlite Administrator for changing the column names. Right Click on Table name and select Edit Table.Here you will find the table structure and you can easily rename it.
XML
android:maxLength="10"
Programmatically:
int maxLength = 10;
InputFilter[] filters = new InputFilter[1];
filters[0] = new InputFilter.LengthFilter(maxLength);
yourEditText.setFilters(filters);
Note: internally, EditText & TextView parse the value of android:maxLength
in XML and use InputFilter.LengthFilter()
to apply it.
See: TextView.java#L1564
The make
uses the $
for its own variable expansions. E.g. single character variable $A
or variable with a long name - ${VAR}
and $(VAR)
.
To put the $
into a command, use the $$
, for example:
all:
@echo "Please execute next commands:"
@echo 'setenv PATH /usr/local/greenhills/mips5/linux86:$$PATH'
Also note that to make
the ""
and ''
(double and single quoting) do not play any role and they are passed verbatim to the shell. (Remove the @
sign to see what make
sends to shell.) To prevent the shell from expanding $PATH
, second line uses the ''
.
You can do this
textView.text = "Name: \(string1) \n" + "Phone Number: \(string2)"
The output will be
Name: output of string1 Phone Number: output of string2
Interesting question - I don't think there's any Oracle function that does this (almost like a "which" command in Unix), but you can get the resolution order for the name by:
select * from
(
select object_name objname, object_type, 'my object' details, 1 resolveOrder
from user_objects
where object_type not like 'SYNONYM'
union all
select synonym_name obj , 'my synonym', table_owner||'.'||table_name, 2 resolveOrder
from user_synonyms
union all
select synonym_name obj , 'public synonym', table_owner||'.'||table_name, 3 resolveOrder
from all_synonyms where owner = 'PUBLIC'
)
where objname like upper('&objOfInterest')
If you are using IntelliJ IDEA or Android Studio:
Go to Settings > Editor > General >Auto Import and check the Optimize imports on the fly checkbox.
A Popen
object has a .wait()
method exactly defined for this: to wait for the completion of a given subprocess (and, besides, for retuning its exit status).
If you use this method, you'll prevent that the process zombies are lying around for too long.
(Alternatively, you can use subprocess.call()
or subprocess.check_call()
for calling and waiting. If you don't need IO with the process, that might be enough. But probably this is not an option, because your if the two subprocesses seem to be supposed to run in parallel, which they won't with (check_
)call()
.)
If you have several subprocesses to wait for, you can do
exit_codes = [p.wait() for p in p1, p2]
which returns as soon as all subprocesses have finished. You then have a list of return codes which you maybe can evaluate.
It's quite an old topic, but since it is returned when searching for "django list field" I'll share the custom django list field code I modified to work with Python 3 and Django 2. It supports the admin interface now and not uses eval (which is a huge security breach in Prashant Gaur's code).
from django.db import models
from typing import Iterable
class ListField(models.TextField):
"""
A custom Django field to represent lists as comma separated strings
"""
def __init__(self, *args, **kwargs):
self.token = kwargs.pop('token', ',')
super().__init__(*args, **kwargs)
def deconstruct(self):
name, path, args, kwargs = super().deconstruct()
kwargs['token'] = self.token
return name, path, args, kwargs
def to_python(self, value):
class SubList(list):
def __init__(self, token, *args):
self.token = token
super().__init__(*args)
def __str__(self):
return self.token.join(self)
if isinstance(value, list):
return value
if value is None:
return SubList(self.token)
return SubList(self.token, value.split(self.token))
def from_db_value(self, value, expression, connection):
return self.to_python(value)
def get_prep_value(self, value):
if not value:
return
assert(isinstance(value, Iterable))
return self.token.join(value)
def value_to_string(self, obj):
value = self.value_from_object(obj)
return self.get_prep_value(value)
You can either use the numerical indices ($row[0]
) or better, use AS
in the MySQL:
SELECT *, user.id AS user_id FROM ...
Canonical Data in RDBMS, Graph Data;
Think as "Normalization" or "Normal form" of a data in a RDBMS. Same data exists in different tables, represented with a unique identifier and mapped it in different tables.
or
Think a single form of a data in Graph Database that represented in many triples.
Major benefit of it is to make Dml (Data manipulation) more efficient since you can upsert (insert/update) only one value instead of many.
Why don't you just refactor the default case as a method and call it from both places? This should be more readable and will allow you to change the code later in a more efficient manner.
I have a different perspective to answering this. This sort of answers "what else can I do to avoid it?"
When working across different layers, for example in an MVC application, a controller needs services to call business operations. In such scenarios Dependency Injection Container can be used to initialize the services to avoid the NullReferenceException. So that means you don't need to worry about checking for null and just call the services from the controller as though they will always to available (and initialized) as either a singleton or a prototype.
public class MyController
{
private ServiceA serviceA;
private ServiceB serviceB;
public MyController(ServiceA serviceA, ServiceB serviceB)
{
this.serviceA = serviceA;
this.serviceB = serviceB;
}
public void MyMethod()
{
// We don't need to check null because the dependency injection container
// injects it, provided you took care of bootstrapping it.
var someObject = serviceA.DoThis();
}
}
HTML:
<div class="form-group">
<label for="pt_date" class="col-2 col-form-label">Date</label>
<input class="form-control" type="date" value=<?php echo date("Y-m-d") ;?> id="pt_date" name="pt_date">
</div>
SQL
$pt_date = $_POST['pt_date'];
$sql = "INSERT INTO `table` ( `pt_date`) VALUES ( '$pt_date')";
I have had this issue in a case where the static
function was called before it was declared. Moving the function declaration to anywhere above the call solved my problem.
Before I start, please let me emphasize that the size of the file must be checked on the server side. If not checked on server side, malicious users can override your client side limits, and upload huge files to your server. DO NOT TRUST THE USERS.
I played a bit with PHP's MAX_FILE_SIZE, it seemed to work only after the file was uploaded, which makes it irrelevant (again, malicious user can override it quite easily).
The javascript code below (tested in Firefox and Chrome), based on Matthew's post, will warn the user (the good, innocent one) a priori to uploading a large file, saving both traffic and the user's time:
<form method="post" enctype="multipart/form-data"
onsubmit="return checkSize(2097152)">
<input type="file" id="upload" />
<input type="submit" />
<script type="text/javascript">
function checkSize(max_img_size)
{
var input = document.getElementById("upload");
// check for browser support (may need to be modified)
if(input.files && input.files.length == 1)
{
if (input.files[0].size > max_img_size)
{
alert("The file must be less than " + (max_img_size/1024/1024) + "MB");
return false;
}
}
return true;
}
</script>
In C++/CLI, a handle is a pointer to an object located on the GC heap. Creating an object on the (unmanaged) C++ heap is achieved using new
and the result of a new
expression is a "normal" pointer. A managed object is allocated on the GC (managed) heap with a gcnew
expression. The result will be a handle. You can't do pointer arithmetic on handles. You don't free handles. The GC will take care of them. Also, the GC is free to relocate objects on the managed heap and update the handles to point to the new locations while the program is running.
You could use the following code where indentation doesn't matter:
>>> def fun():
return ('{0} Here is a really long'
' sentence with {1}').format(3, 5)
You just need to enclose string in the parentheses.
Try this
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while (in.hasNext()) {
if (in.hasNextInt())
System.out.println(in.nextInt());
else
in.next();
}
}
By default, Scanner uses the delimiter pattern "\p{javaWhitespace}+" which matches at least one white space as delimiter. you don't have to do anything special.
If you want to match either whitespace(1 or more) or a comma, replace the Scanner invocation with this
Scanner in = new Scanner(System.in).useDelimiter("[,\\s+]");
You might want to try the solution from this O'Reilly article.
The important part are these CSS media queries:
<link rel="stylesheet" media="all and (max-device-width: 480px)" href="iphone.css">
<link rel="stylesheet" media="all and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:portrait)" href="ipad-portrait.css">
<link rel="stylesheet" media="all and (min-device-width: 481px) and (max-device-width: 1024px) and (orientation:landscape)" href="ipad-landscape.css">
<link rel="stylesheet" media="all and (min-device-width: 1025px)" href="ipad-landscape.css">
The official docs say to use: wa.me
. Don't use wa.me
. I apologize for the length of these results, but it's been a rapidly-evolving issue....
April, 2020 Results
This link is incorrect. Close this window and try a different link.
May, 2020 Results
Share Link GitHub Ticket: WhatsApp short link without phone number not working anymore
We couldn't find the page you were looking for
Looks like you're looking for a page that doesn't exist. Or a page we might have just deleted. Either way, go back or be sure to check the url, your spelling and try again.
August, 2020 Results
Works as expected!
LATEST - October, 2020 Results
(Broken again!)
og:image
tag previews are disabled when usingwa.me
.
Based on some of the comments I'm seeing, it seems like this still be an intermittent problem, so, going forward, I recommend you stick to the api.whatsapp.com
URL!
If you want to share, you must absolutely use one of the two following URL formats:
https://api.whatsapp.com/send?text=YourShareTextHere
https://api.whatsapp.com/send?text=YourShareTextHere&phone=123
If you are interested in watching a project that keeps track of these URLs, then check us out!: https://github.com/bradvin/social-share-urls#telegramme
Similar to paxdiablo above. This code, inserted in a wider app, works fine with STM32 NUCLEO-F446RE.
#include <stdio.h>
#include <math.h>
#include <string.h>
void IntegFract(char *pcIntegStr, char *pcFractStr, double dbValue, int iPrecis);
main()
{
char acIntegStr[9], acFractStr[9], char counter_buff[30];
double seconds_passed = 123.0567;
IntegFract(acIntegStr, acFractStr, seconds_passed, 3);
sprintf(counter_buff, "Time: %s.%s Sec", acIntegStr, acFractStr);
}
void IntegFract(char *pcIntegStr, char *pcFractStr, double dbValue, int
iPrecis)
{
int iIntegValue = dbValue;
int iFractValue = (dbValue - iIntegValue) * pow(10, iPrecis);
itoa(iIntegValue, pcIntegStr, 10);
itoa(iFractValue, pcFractStr, 10);
size_t length = strlen(pcFractStr);
char acTemp[9] = "";
while (length < iPrecis)
{
strcat(acTemp, "0");
length++;
}
strcat(acTemp, pcFractStr);
strcpy(pcFractStr, acTemp);
}
counter_buff would contain 123.056 .
The function supports the dry principle - ensuring that you don't hard code urls throughout your app. A url should be defined in one place, and only one place - your url conf. After that you're really just referencing that info.
Use reverse()
to give you the url of a page, given either the path to the view, or the page_name parameter from your url conf. You would use it in cases where it doesn't make sense to do it in the template with {% url 'my-page' %}
.
There are lots of possible places you might use this functionality. One place I've found I use it is when redirecting users in a view (often after the successful processing of a form)-
return HttpResponseRedirect(reverse('thanks-we-got-your-form-page'))
You might also use it when writing template tags.
Another time I used reverse()
was with model inheritance. I had a ListView on a parent model, but wanted to get from any one of those parent objects to the DetailView of it's associated child object. I attached a get__child_url()
function to the parent which identified the existence of a child and returned the url of it's DetailView using reverse()
.
Modern browsers support a Content Security Policy or CSP. This is the highest level of web security and strongly recommended if you can apply it because it completely blocks all XSS attacks.
Both of your suggestions break with CSP enabled because they allow inline Javascript (which could be injected by a hacker) to execute in your page.
The best practice is to subscribe to the event in Javascript, as in Konrad Rudolph's answer.
In case anyone else is interested: I needed a class that could be used interchangeably wherever either a string
or wstring
was expected. The following class convertible_string
, based on dk123's solution, can be initialized with either a string
, char const*
, wstring
or wchar_t const*
and can be assigned to by or implicitly converted to either a string
or wstring
(so can be passed into a functions that take either).
class convertible_string
{
public:
// default ctor
convertible_string()
{}
/* conversion ctors */
convertible_string(std::string const& value) : value_(value)
{}
convertible_string(char const* val_array) : value_(val_array)
{}
convertible_string(std::wstring const& wvalue) : value_(ws2s(wvalue))
{}
convertible_string(wchar_t const* wval_array) : value_(ws2s(std::wstring(wval_array)))
{}
/* assignment operators */
convertible_string& operator=(std::string const& value)
{
value_ = value;
return *this;
}
convertible_string& operator=(std::wstring const& wvalue)
{
value_ = ws2s(wvalue);
return *this;
}
/* implicit conversion operators */
operator std::string() const { return value_; }
operator std::wstring() const { return s2ws(value_); }
private:
std::string value_;
};
Have you tried the different border styles available within the CSS spec? There's already two border styles that might accommodate your need:
border-style: ridge;
Or
border-style: groove;
In this context, I suppose it could be interpreted as
do
...
while cmd != 'e'
I know this is an old question, but I faced the same problem recently in Laravel 7 application.
To make renaming columns work I used a tip from this answer where instead of composer require doctrine/dbal
I have issued composer require doctrine/dbal:^2.12.1
because the latest version of doctrine/dbal still throws an error.
Just keep in mind that if you already use a higher version, this answer might not be appropriate for you.
There are a lot of good reasons in other answers but all seem to forget that
for_each
allows you to use reverse or pretty much any custom iterator when for loop always starts with begin()
iterator.
Example with reverse iterator:
std::list<int> l {1,2,3};
std::for_each(l.rbegin(), l.rend(), [](auto o){std::cout<<o;});
Example with some custom tree iterator:
SomeCustomTree<int> a{1,2,3,4,5,6,7};
auto node = a.find(4);
std::for_each(node.breadthFirstBegin(), node.breadthFirstEnd(), [](auto o){std::cout<<o;});
In case you need the []
syntax, useful for "edit forms" when you need to pass parameters like id with the route, you would do something like:
[routerLink]="['edit', business._id]"
As for an "about page" with no parameters like yours,
[routerLink]="/about"
or
[routerLink]=['about']
will do the trick.
I did this for a home folder where all the folders are on the desktops of the corresponding users, reachable through a shortcut which did not have the appropriate permissions, so that users couldn't see it even if it was there. So I used Robocopy with the parameter to overwrite the file with the right settings:
FOR /F "tokens=*" %G IN ('dir /b') DO robocopy "\\server02\Folder with shortcut" "\\server02\home\%G\Desktop" /S /A /V /log+:C:\RobocopyShortcut.txt /XF *.url *.mp3 *.hta *.htm *.mht *.js *.IE5 *.css *.temp *.html *.svg *.ocx *.3gp *.opus *.zzzzz *.avi *.bin *.cab *.mp4 *.mov *.mkv *.flv *.tiff *.tif *.asf *.webm *.exe *.dll *.dl_ *.oc_ *.ex_ *.sy_ *.sys *.msi *.inf *.ini *.bmp *.png *.gif *.jpeg *.jpg *.mpg *.db *.wav *.wma *.wmv *.mpeg *.tmp *.old *.vbs *.log *.bat *.cmd *.zip /SEC /IT /ZB /R:0
As you see there are many file types which I set to ignore (just in case), just set them for your needs or your case scenario.
It was tested on Windows Server 2012, and every switch is documented on Microsoft's sites and others.
As I understand it, you want the server be able to send messages through from client 1 to client 2. You cannot directly connect two clients because one of the two ends of a WebSocket connection needs to be a server.
This is some pseudocodish JavaScript:
Client:
var websocket = new WebSocket("server address");
websocket.onmessage = function(str) {
console.log("Someone sent: ", str);
};
// Tell the server this is client 1 (swap for client 2 of course)
websocket.send(JSON.stringify({
id: "client1"
}));
// Tell the server we want to send something to the other client
websocket.send(JSON.stringify({
to: "client2",
data: "foo"
}));
Server:
var clients = {};
server.on("data", function(client, str) {
var obj = JSON.parse(str);
if("id" in obj) {
// New client, add it to the id/client object
clients[obj.id] = client;
} else {
// Send data to the client requested
clients[obj.to].send(obj.data);
}
});
Sample Instruction
Given an integer, n
, performing the following conditional actions:
import math
n = int(input())
if n % 2 ==1:
print("Weird")
elif n % 2==0 and n in range(2,6):
print("Not Weird")
elif n % 2 == 0 and n in range(6,21):
print("Weird")
elif n % 2==0 and n>20:
print("Not Weird")
Best explanation for X = aY + b
(in fact it f(x) = ax + b
)) is provided at https://math.stackexchange.com/a/906280/357701
A Simpler one by just adjusting lightness/luma/brightness for contrast as is below:
import cv2
img = cv2.imread('test.jpg')
cv2.imshow('test', img)
cv2.waitKey(1000)
imghsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
imghsv[:,:,2] = [[max(pixel - 25, 0) if pixel < 190 else min(pixel + 25, 255) for pixel in row] for row in imghsv[:,:,2]]
cv2.imshow('contrast', cv2.cvtColor(imghsv, cv2.COLOR_HSV2BGR))
cv2.waitKey(1000)
raw_input()
<import resource="classpath*:spring-config.xml" />
This is the most suitable one for class path configuration. Particularly when you are searching for the .xml files in a different project which is in your class path.
In my case this was happening a lot in my development and test environments. After trying all of the above solutions without any success I found that I was able to fix this problem by deleting all session cookies. The web developer extension makes this very easy to do. I mostly use Firefox for testing and development, but this also happened while testing in Chrome. The fix also worked in Chrome.
I haven't had to do this yet in the production environment and have not received any reports of people not being able to log in. This also only seemed to happen after making the session cookies to be secure. It never happened in the past when they were not secure.
You can like:
window.open('url', 'window name', 'window settings')
jQuery:
$('a#link_id').click(function(){
window.open('url', 'window name', 'window settings');
return false;
});
You could also set the target
to _blank
actually.
Variables containing primitive types are passed by value in PHP5. Variables containing objects are passed by reference. There's quite an interesting article from Linux Journal from 2006 which mentions this and other OO differences between 4 and 5.
This example shows how you can layer SSL on top of an existing socket, obtaining the client cert from a PKCS#12 file. It is appropriate when you need to connect to an upstream server via a proxy, and you want to handle the full protocol by yourself.
Essentially, however, once you have the SSL Context, you can apply it to an HttpsURLConnection, etc, etc.
KeyStore ks = KeyStore.getInstance("PKCS12");
InputStream is = ...;
char[] ksp = storePassword.toCharArray();
ks.load(is, ksp);
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
char[] kp = keyPassword.toCharArray();
kmf.init(ks, kp);
sslContext = SSLContext.getInstance("SSLv3");
sslContext.init(kmf.getKeyManagers(), null, null);
SSLSocketFactory factory = sslContext.getSocketFactory();
SSLSocket sslsocket = (SSLSocket) factory.createSocket(socket, socket
.getInetAddress().getHostName(), socket.getPort(), true);
sslsocket.setUseClientMode(true);
sslsocket.setSoTimeout(soTimeout);
sslsocket.startHandshake();
Update: I have found a better/proper way to solve this problem using a BehaviorSubject or an Observable rather than an EventEmitter. Please see this answer: https://stackoverflow.com/a/35568924/215945
Also, the Angular docs now have a cookbook example that uses a Subject.
Original/outdated/wrong answer: again, don't use an EventEmitter in a service. That is an anti-pattern.
Using beta.1... NavService contains the EventEmiter. Component Navigation emits events via the service, and component ObservingComponent subscribes to the events.
nav.service.ts
import {EventEmitter} from 'angular2/core';
export class NavService {
navchange: EventEmitter<number> = new EventEmitter();
constructor() {}
emitNavChangeEvent(number) {
this.navchange.emit(number);
}
getNavChangeEmitter() {
return this.navchange;
}
}
components.ts
import {Component} from 'angular2/core';
import {NavService} from '../services/NavService';
@Component({
selector: 'obs-comp',
template: `obs component, item: {{item}}`
})
export class ObservingComponent {
item: number = 0;
subscription: any;
constructor(private navService:NavService) {}
ngOnInit() {
this.subscription = this.navService.getNavChangeEmitter()
.subscribe(item => this.selectedNavItem(item));
}
selectedNavItem(item: number) {
this.item = item;
}
ngOnDestroy() {
this.subscription.unsubscribe();
}
}
@Component({
selector: 'my-nav',
template:`
<div class="nav-item" (click)="selectedNavItem(1)">nav 1 (click me)</div>
<div class="nav-item" (click)="selectedNavItem(2)">nav 2 (click me)</div>
`,
})
export class Navigation {
item = 1;
constructor(private navService:NavService) {}
selectedNavItem(item: number) {
console.log('selected nav item ' + item);
this.navService.emitNavChangeEvent(item);
}
}
There's a simply way of doing it. You define for all the rows, except the first one, the following class with properties:
.not-first-row
{
position: relative;
top: -20px;
}
Then you apply the class to all non-first rows and adjust the negative top value to fit your desired row space. It's easy and works way better. :) Hope it helped.
echo "Subject: test" | /usr/sbin/sendmail [email protected]
This enables you to do it within one command line without having to echo a text file. This answer builds on top of @mti2935's answer. So credit goes there.
Best way to do this is to use a function:
<div ng-repeat="product in products | filter: myFilter">
$scope.myFilter = function (item) {
return item === 'red' || item === 'blue';
};
Alternatively, you can use ngHide or ngShow to dynamically show and hide elements based on a certain criteria.
I have used both JXL (now "JExcel") and Apache POI. At first I used JXL, but now I use Apache POI.
First, here are the things where both APIs have the same end functionality:
However, there are many differences:
Additionally, POI contains not just the main "usermodel" API, but also an event-based API if all you want to do is read the spreadsheet content.
In conclusion, because of the better documentation, more features, active development, and Excel 2007+ format support, I use Apache POI.
The problem seems to be that block
elements only scale up to 100% of their containing element, no matter how big their content is—it just overflows. However, making them inline-block
elements apparently resizes their width to their actual content.
HTML:
<div id="container">
<div class="wide">
foooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
</div>
<div class="wide">
bar
</div>
</div>
CSS:
.wide { min-width: 100%; display: inline-block; background-color: yellow; }
#container { display: inline-block; }
(The container
element addresses your follow-up question to make the second div
as big as the previous one, and not just the screen width.)
I also set up a JS fiddle showing my demo code.
If you run into any troubles (esp. cross-browser issues) with inline-block
, looking at Block-level elements within display: inline-block might help.
Delete Dan from employee.data - No need to manage a new data.frame.
employee.data <- subset(employee.data, name!="Dan")
Because I will not admit the YUI/Crockford factory plan and because I like to keep things self contained and extensible this is my variation:
function Person(params)
{
this.name = params.name || defaultnamevalue;
this.role = params.role || defaultrolevalue;
if(typeof(this.speak)=='undefined') //guarantees one time prototyping
{
Person.prototype.speak = function() {/* do whatever */};
}
}
var Robert = new Person({name:'Bob'});
where ideally the typeof test is on something like the first method prototyped
You could add
/project_root/third_party_git_repository_used_by_my_project
to
/project_root/.gitignore
that should prevent the nested repo to be included in the parent repo, and you can work with them independently.
But: If a user runs git clean -dfx in the parent repo, it will remove the ignored nested repo. Another way is to symlink the folder and ignore the symlink. If you then run git clean, the symlink is removed, but the 'nested' repo will remain intact as it really resides elsewhere.
I've been struggling from this issue as well. I believe that this works for all release candidates aka rc but I didn't test is though. For @angular rc.2 it works well.
core-js
as npm dependency in package.json
typings install core-js --save
"es6-shim"
occurances in your package.json
. You don't need it anymore.Cheers!
Run following command to enable credential caching:
$ git config credential.helper store
$ git push https://github.com/repo.git
Username for 'https://github.com': <USERNAME>
Password for 'https://[email protected]': <PASSWORD>
Use should also specify caching expire
git config --global credential.helper "cache --timeout 7200"
After enabling credential caching, it will be cached for 7200 seconds (2 hour).
Read credentials Docs
$ git help credentials
Since you don't really need the total number, and in fact want to perform an action after a certain number (in your case 5000), you can use java.nio.file.Files.newDirectoryStream
. The benefit is that you can exit early instead having to go through the entire directory just to get a count.
public boolean isOverMax(){
Path dir = Paths.get("C:/foo/bar");
int i = 1;
try (DirectoryStream<Path> stream = Files.newDirectoryStream(dir)) {
for (Path p : stream) {
//larger than max files, exit
if (++i > MAX_FILES) {
return true;
}
}
} catch (IOException ex) {
ex.printStackTrace();
}
return false;
}
The interface doc for DirectoryStream
also has some good examples.
You have multiple options, each with different general use cases.
The first would be to use a for
loop, as you described, but in the following way.
for value in array:
print(value, end=' ')
You could also use str.join
for a simple, readable one-liner using comprehension. This method would be good for storing this value to a variable.
print(' '.join(str(value) for value in array))
My favorite method, however, would be to pass array
as *args
, with a sep
of ' '
. Note, however, that this method will only produce a print
ed output, not a value that may be stored to a variable.
print(*array, sep=' ')
You are correct, but note that you can do it the other way around - use Android Wifi tethering that sets up the phone as a base station and connect to said base station from the laptop.
A simple trick is to generate a shorter version of your variable by multiplying it with e.g. 100
, rounding it and dividing it by 100.0
again. This way you generate a variable, with 2 decimal places:
double new_variable = Math.round(old_variable*100) / 100.0;
This "cheap trick" was always good enough for me, and works in any language (I am not a Java person, just learning it).
Bootstrap 4.0
Be aware of all migration changes from Bootstrap 3 to 4. On the table you now need to enable flex box by adding the class d-flex
, and drop the xs
to allow bootstrap to automatically detect the viewport.
<div class="container-fluid">
<table id="productSizes" class="table">
<thead>
<tr class="d-flex">
<th class="col-1">Size</th>
<th class="col-3">Bust</th>
<th class="col-3">Waist</th>
<th class="col-5">Hips</th>
</tr>
</thead>
<tbody>
<tr class="d-flex">
<td class="col-1">6</td>
<td class="col-3">79 - 81</td>
<td class="col-3">61 - 63</td>
<td class="col-5">89 - 91</td>
</tr>
<tr class="d-flex">
<td class="col-1">8</td>
<td class="col-3">84 - 86</td>
<td class="col-3">66 - 68</td>
<td class="col-5">94 - 96</td>
</tr>
</tbody>
</table>
Bootstrap 3.2
Table column width use the same layout as grids do; using col-[viewport]-[size]
. Remember the column sizes should total 12; 1 + 3 + 3 + 5 = 12
in this example.
<thead>
<tr>
<th class="col-xs-1">Size</th>
<th class="col-xs-3">Bust</th>
<th class="col-xs-3">Waist</th>
<th class="col-xs-5">Hips</th>
</tr>
</thead>
Remember to set the <th>
elements rather than the <td>
elements so it sets the whole column. Here is a working BOOTPLY.
Thanks to @Dan for reminding me to always work mobile view (col-xs-*
) first.
This is a fun Unicode solution.
char[] alpha = new char[26]
for(int i = 0; i < 26; i++){
alpha[i] = (char)(97 + i)
}
This generates a lower-cased version of alphabet, if you want upper-cased, you can replace '97' with '65'.
Hope this helps.
To create the regex from a string, you have to use JavaScript's RegExp
object.
If you also want to match/replace more than one time, then you must add the g
(global match) flag. Here's an example:
var stringToGoIntoTheRegex = "abc";
var regex = new RegExp("#" + stringToGoIntoTheRegex + "#", "g");
// at this point, the line above is the same as: var regex = /#abc#/g;
var input = "Hello this is #abc# some #abc# stuff.";
var output = input.replace(regex, "!!");
alert(output); // Hello this is !! some !! stuff.
Not every string is a valid regex, though: there are some speciall characters, like (
or [
. To work around this issue, simply escape the string before turning it into a regex. A utility function for that goes in the sample below:
function escapeRegExp(stringToGoIntoTheRegex) {
return stringToGoIntoTheRegex.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}
var stringToGoIntoTheRegex = escapeRegExp("abc"); // this is the only change from above
var regex = new RegExp("#" + stringToGoIntoTheRegex + "#", "g");
// at this point, the line above is the same as: var regex = /#abc#/g;
var input = "Hello this is #abc# some #abc# stuff.";
var output = input.replace(regex, "!!");
alert(output); // Hello this is !! some !! stuff.
Note: the regex in the question uses the s
modifier, which didn't exist at the time of the question, but does exist -- a s
(dotall) flag/modifier in JavaScript -- today.
Example for trim leading and trailing spaces following jon-hanson's suggestion to use boost (only removes trailing and pending spaces):
#include <boost/algorithm/string/trim.hpp>
std::string str = " t e s t ";
boost::algorithm::trim ( str );
Results in "t e s t"
There is also
trim_left
results in "t e s t "
trim_right
results in " t e s t"
This is a little bit fancy... but it works:
Step 1: Create a Powershell Profile:
FILE: install_profile.ps1
# THIS SCRIPT BLOWS AWAY YOUR DEFAULT POWERSHELL PROFILE SCRIPT
# AND INSTALLS A POINTER TO A GLOBAL POWERSHELL PROFILE
$ErrorActionPreference = "Stop"
function print ([string]$msg)
{
Write-Host -ForegroundColor Green $msg
}
print ""
# User's Powershell Profile
$psdir = "$env:USERPROFILE\Documents\WindowsPowerShell"
$psfile = $psdir + "\Microsoft.PowerShell_profile.ps1"
print "Creating Directory: $psdir"
md $psdir -ErrorAction SilentlyContinue | out-null
# this is your auto-generated powershell profile to be installed
$content = @(
"",
". ~/Documents/tools/profile.ps1",
""
)
print "Creating File: $psfile"
[System.IO.File]::WriteAllLines($psfile, $content)
print ""
# Make sure Powershell profile is readable
Set-ExecutionPolicy -Scope CurrentUser Unrestricted
Step 2: then in tools ~/Documents/tools/profile.ps1:
function Do-ActualThing {
# do actual thing
}
Set-Alias MyAlias Do-ActualThing
Step 3:
$ Set-ExecutionPolicy -Scope CurrentUser Unrestricted $ . ./install_profile.ps1
Another application for XOR
is in circuits. It is used to sum bits.
When you look at a truth table:
x | y | x^y
---|---|-----
0 | 0 | 0 // 0 plus 0 = 0
0 | 1 | 1 // 0 plus 1 = 1
1 | 0 | 1 // 1 plus 0 = 1
1 | 1 | 0 // 1 plus 1 = 0 ; binary math with 1 bit
You can notice that the result of XOR
is x added with y, without keeping track of the carry bit, the carry bit is obtained from the AND
between x and y.
x^y // is actually ~xy + ~yx
// Which is the (negated x ANDed with y) OR ( negated y ANDed with x ).
PYTHONPATH
is an environment variable those content is added to the sys.path
where Python looks for modules. You can set it to whatever you like.
However, do not mess with PYTHONPATH
. More often than not, you are doing it wrong and it will only bring you trouble in the long run. For example, virtual environments could do strange things…
I would suggest you learned how to package a Python module properly, maybe using this easy setup. If you are especially lazy, you could use cookiecutter to do all the hard work for you.
You can try to use as well this functions to capture StdErr StdOut and return code.
def runShell(String command){
def responseCode = sh returnStatus: true, script: "${command} &> tmp.txt"
def output = readFile(file: "tmp.txt")
if (responseCode != 0){
println "[ERROR] ${output}"
throw new Exception("${output}")
}else{
return "${output}"
}
}
Notice:
&>name means 1>name 2>name -- redirect stdout and stderr to the file name
I use this small method to read Arduino serial monitor with Python
import serial
ser = serial.Serial("COM11", 9600)
while True:
cc=str(ser.readline())
print(cc[2:][:-5])
WebConfigurationManager.ConnectionStrings["YourConnectionString"].ProviderName;