Creating an AsyncResult
object from the task id is the way recommended in the FAQ to obtain the task status when the only thing you have is the task id.
However, as of Celery 3.x, there are significant caveats that could bite people if they do not pay attention to them. It really depends on the specific use-case scenario.
In order for Celery to record that a task is running, you must set task_track_started
to True
. Here is a simple task that tests this:
@app.task(bind=True)
def test(self):
print self.AsyncResult(self.request.id).state
When task_track_started
is False
, which is the default, the state show is PENDING
even though the task has started. If you set task_track_started
to True
, then the state will be STARTED
.
PENDING
means "I don't know."An AsyncResult
with the state PENDING
does not mean anything more than that Celery does not know the status of the task. This could be because of any number of reasons.
For one thing, AsyncResult
can be constructed with invalid task ids. Such "tasks" will be deemed pending by Celery:
>>> task.AsyncResult("invalid").status
'PENDING'
Ok, so nobody is going to feed obviously invalid ids to AsyncResult
. Fair enough, but it also has for effect that AsyncResult
will also consider a task that has successfully run but that Celery has forgotten as being PENDING
. Again, in some use-case scenarios this can be a problem. Part of the issue hinges on how Celery is configured to keep the results of tasks, because it depends on the availability of the "tombstones" in the results backend. ("Tombstones" is the term use in the Celery documentation for the data chunks that record how the task ended.) Using AsyncResult
won't work at all if task_ignore_result
is True
. A more vexing problem is that Celery expires the tombstones by default. The result_expires
setting by default is set to 24 hours. So if you launch a task, and record the id in long-term storage, and more 24 hours later, you create an AsyncResult
with it, the status will be PENDING
.
All "real tasks" start in the PENDING
state. So getting PENDING
on a task could mean that the task was requested but never progressed further than this (for whatever reason). Or it could mean the task ran but Celery forgot its state.
AsyncResult
won't work for me. What else can I do?I prefer to keep track of goals than keep track of the tasks themselves. I do keep some task information but it is really secondary to keeping track of the goals. The goals are stored in storage independent from Celery. When a request needs to perform a computation depends on some goal having been achieved, it checks whether the goal has already been achieved, if yes, then it uses this cached goal, otherwise it starts the task that will effect the goal, and sends to the client that made the HTTP request a response that indicates it should wait for a result.
The variable names and hyperlinks above are for Celery 4.x. In 3.x the corresponding variables and hyperlinks are: CELERY_TRACK_STARTED
, CELERY_IGNORE_RESULT
, CELERY_TASK_RESULT_EXPIRES
.
Override windowClosing Method.
public void windowClosing(WindowEvent e)
It is invoked when a window is in the process of being closed. The close operation can be overridden at this point.
I was able to resolve this using the designer.
I did not have to change my view to use the ISNULL, NULLIF, or COALESCE workarounds. If you update your model from the database, the warnings will re-appear, but will go away if you close and re-open VS. The changes you made in the designer will be preserved and not affected by the refresh.
Sometimes the port which you are trying to access, gets occupied and won't be released. Try some tools to find whether the port is in use or not. I also faced the same issue. I tried giving different port numbers but unfortunately it didn't work. I tried restarting the system (not the application server), and it worked :)
This is like user3076252's answer, but you'll be choosing a different set of options:
It should find your unbound JRE, but this time with all the numbers in it's name (rather than unbound), and you can select it. It will take a while to search the drive, but you can stop it at any time, and it will save the results, if any.
The simplest way I found for C++ 11 was this:
Your includes:
#include <chrono>
#include <thread>
Your code (this is an example for sleep 1000 millisecond):
std::chrono::duration<int, std::milli> timespan(1000);
std::this_thread::sleep_for(timespan);
The duration could be configured to any of the following:
std::chrono::nanoseconds duration</*signed integer type of at least 64 bits*/, std::nano>
std::chrono::microseconds duration</*signed integer type of at least 55 bits*/, std::micro>
std::chrono::milliseconds duration</*signed integer type of at least 45 bits*/, std::milli>
std::chrono::seconds duration</*signed integer type of at least 35 bits*/, std::ratio<1>>
std::chrono::minutes duration</*signed integer type of at least 29 bits*/, std::ratio<60>>
std::chrono::hours duration</*signed integer type of at least 23 bits*/, std::ratio<3600>>
I adapted one of the above answers from cdhowie as I could not get it to work. This seems to work for me. I suspect it's also possible to do this with the UNIX_TIMESTAMP function been used.
SELECT * FROM your_table
WHERE UNIX_TIMESTAMP(DateVisited) >= UNIX_TIMESTAMP(CAST(NOW() - INTERVAL 1 DAY AS DATE))
AND UNIX_TIMESTAMP(DateVisited) <= UNIX_TIMESTAMP(CAST(NOW() AS DATE));
As almost noted in comments to @BoltClock's answer, in modern browsers, you can actually add some html markup to pseudo-elements using the (url()
) in combination with svg's <foreignObject>
element.
You can either specify an URL pointing to an actual svg file, or create it with a dataURI version (data:image/svg+xml; charset=utf8, + encodeURIComponent(yourSvgMarkup)
)
But note that it is mostly a hack and that there are a lot of limitations :
document.styleSheets
. for this part, DOMParser
and XMLSerializer
may help.<img>
tags, this won't work in pseudo-elements (at least as of today, I don't know if it is specified anywhere that it shouldn't, so it may be a not-yet implemented feature).Now, a small demo of some html markup in a pseudo element :
/* _x000D_
** original svg code :_x000D_
*_x000D_
*<svg width="200" height="60"_x000D_
* xmlns="http://www.w3.org/2000/svg">_x000D_
*_x000D_
* <foreignObject width="100%" height="100%" x="0" y="0">_x000D_
* <div xmlns="http://www.w3.org/1999/xhtml" style="color: blue">_x000D_
* I am <pre>HTML</pre>_x000D_
* </div>_x000D_
* </foreignObject>_x000D_
*</svg>_x000D_
*_x000D_
*/
_x000D_
#log::after {_x000D_
content: url('data:image/svg+xml;%20charset=utf8,%20%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20height%3D%2260%22%20width%3D%22200%22%3E%0A%0A%20%20%3CforeignObject%20y%3D%220%22%20x%3D%220%22%20height%3D%22100%25%22%20width%3D%22100%25%22%3E%0A%09%3Cdiv%20style%3D%22color%3A%20blue%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1999%2Fxhtml%22%3E%0A%09%09I%20am%20%3Cpre%3EHTML%3C%2Fpre%3E%0A%09%3C%2Fdiv%3E%0A%20%20%3C%2FforeignObject%3E%0A%3C%2Fsvg%3E');_x000D_
}
_x000D_
<p id="log">hi</p>
_x000D_
What's happening here is the following: You create a new file on your trunk, then you merge it into your branch. In the merge commit this file will be created in your branch also.
When you merge your branch back into the trunk, SVN tries to do the same again: It sees that a file was created in your branch, and tries to create it in your trunk in the merge commit, but it already exists! This creates a tree conflict.
The way to avoid this, is to do a special merge, a reintegration. You can achieve this with the --reintegrate
switch.
You can read about this in the documentation: http://svnbook.red-bean.com/en/1.7/svn.branchmerge.basicmerging.html#svn.branchemerge.basicmerging.reintegrate
When merging your branch back to the trunk, however, the underlying mathematics are quite different. Your feature branch is now a mishmash of both duplicated trunk changes and private branch changes, so there's no simple contiguous range of revisions to copy over. By specifying the --reintegrate option, you're asking Subversion to carefully replicate only those changes unique to your branch. (And in fact, it does this by comparing the latest trunk tree with the latest branch tree: the resulting difference is exactly your branch changes!)
After reintegrating a branch it is highly advisable to remove it, otherwise you will keep getting treeconflicts whenever you merge in the other direction: from the trunk to your branch. (For exactly the same reason as described before.)
There is a way around this too, but I never tried it. You can read it in this post: Subversion branch reintegration in v1.6
Globals in Python are global to a module, not across all modules. (Many people are confused by this, because in, say, C, a global is the same across all implementation files unless you explicitly make it static
.)
There are different ways to solve this, depending on your actual use case.
Before even going down this path, ask yourself whether this really needs to be global. Maybe you really want a class, with f
as an instance method, rather than just a free function? Then you could do something like this:
import module1
thingy1 = module1.Thingy(a=3)
thingy1.f()
If you really do want a global, but it's just there to be used by module1
, set it in that module.
import module1
module1.a=3
module1.f()
On the other hand, if a
is shared by a whole lot of modules, put it somewhere else, and have everyone import it:
import shared_stuff
import module1
shared_stuff.a = 3
module1.f()
… and, in module1.py:
import shared_stuff
def f():
print shared_stuff.a
Don't use a from
import unless the variable is intended to be a constant. from shared_stuff import a
would create a new a
variable initialized to whatever shared_stuff.a
referred to at the time of the import, and this new a
variable would not be affected by assignments to shared_stuff.a
.
Or, in the rare case that you really do need it to be truly global everywhere, like a builtin, add it to the builtin module. The exact details differ between Python 2.x and 3.x. In 3.x, it works like this:
import builtins
import module1
builtins.a = 3
module1.f()
/* do not group these rules */_x000D_
*::-webkit-input-placeholder {_x000D_
color: red;_x000D_
}_x000D_
*:-moz-placeholder {_x000D_
/* FF 4-18 */_x000D_
color: red;_x000D_
opacity: 1;_x000D_
}_x000D_
*::-moz-placeholder {_x000D_
/* FF 19+ */_x000D_
color: red;_x000D_
opacity: 1;_x000D_
}_x000D_
*:-ms-input-placeholder {_x000D_
/* IE 10+ */_x000D_
color: red;_x000D_
}_x000D_
*::-ms-input-placeholder {_x000D_
/* Microsoft Edge */_x000D_
color: red;_x000D_
}_x000D_
*::placeholder {_x000D_
/* modern browser */_x000D_
color: red;_x000D_
}
_x000D_
<input placeholder="hello"/> <br />_x000D_
<textarea placeholder="hello"></textarea>
_x000D_
This will style all input
and textarea
placeholders.
Important Note: Do not group these rules. Instead, make a separate rule for every selector (one invalid selector in a group makes the whole group invalid).
1. SQL or Structured Query Language was developed by IBM for their product "System R".
Later ANSI made it as a Standard on which all Query Languages are based upon and have extended this to create their own DataBase Query Language suits. The first standard was SQL-86 and latest being SQL:2016
2. T-SQL or Transact-SQL was developed by Sybase and later co-owned by Microsoft SQL Server.
3. PL/SQL or Procedural Language/SQL was Oracle Database, known as "Relation Software" that time.
I've documented this in my blog post.
Just single if conditions
<select name="category_type[]" id="category_type" class="select2 m-b-10 select2-multiple" style="width: 100%" multiple="multiple" data-placeholder="Choose" tooltip="Select Category Type">
@foreach ($categoryTypes as $categoryType)
<option value="{{ $categoryType->id }}"
**@if(in_array($categoryType->id,
request()->get('category_type')??[]))selected="selected"
@endif**>
{{ ucfirst($categoryType->title) }}</option>
@endforeach
</select>
Well I know this might be a big change or even not suitable for your project, but did you consider not performing the push until you already have the data? That way you only need to draw the view once and the user experience will also be better - the push will move in already loaded.
The way you do this is in the UITableView
didSelectRowAtIndexPath
you asynchronously ask for the data. Once you receive the response, you manually perform the segue and pass the data to your viewController in prepareForSegue
.
Meanwhile you may want to show some activity indicator, for simple loading indicator check https://github.com/jdg/MBProgressHUD
Assuming you’ve literally got two date objects, you can subtract one from the other and query the resulting timedelta
object for the number of days:
>>> from datetime import date
>>> a = date(2011,11,24)
>>> b = date(2011,11,17)
>>> a-b
datetime.timedelta(7)
>>> (a-b).days
7
And it works with datetimes too — I think it rounds down to the nearest day:
>>> from datetime import datetime
>>> a = datetime(2011,11,24,0,0,0)
>>> b = datetime(2011,11,17,23,59,59)
>>> a-b
datetime.timedelta(6, 1)
>>> (a-b).days
6
I recommend you to generate an open format XML Excel file, is much more flexible than CSV.
Read Generating an Excel file in ASP.NET for more info
The way you import a .cer file into the trust store is the same way you'd import a .crt file from say an export from Firefox.
You do not have to put an alias and the password of the keystore, you can just type:
keytool -v -import -file somefile.crt -alias somecrt -keystore my-cacerts
Preferably use the cacerts file that is already in your Java installation (jre\lib\security\cacerts) as it contains secure "popular" certificates.
Update regarding the differences of cer and crt (just to clarify) According to Apache with SSL - How to convert CER to CRT certificates? and user @Spawnrider
CER is a X.509 certificate in binary form, DER encoded.
CRT is a binary X.509 certificate, encapsulated in text (base-64) encoding.
It is not the same encoding.
a solution can be having the close inside your modal
take a look at this simple example
Try with conditions.
$id = 1;
Post::with(array('user'=>function($query) use ($id){
$query->where('id','=',$id);
$query->select('id','username');
}))->get();
You could provide a list of columns to be dropped and return back the DataFrame with only the columns needed using the drop()
function on a Pandas DataFrame.
Just saying
colsToDrop = ['a']
df.drop(colsToDrop, axis=1)
would return a DataFrame with just the columns b
and c
.
The drop
method is documented here.
Instead of using ">" to redirect like this:
java Foo > log
use ">>" to append normal "stdout" output to a new or existing file:
java Foo >> log
However, if you also want to capture "stderr" errors (such as why the Java program couldn't be started), you should also use the "2>&1" tag which redirects "stderr" (the "2") to "stdout" (the "1"). For example:
java Foo >> log 2>&1
Simply
app.use means “Run this on ALL requests”
app.get means “Run this on a GET request, for the given URL”
Edit:
In 2.7 / 3.2 there is a new writeheader()
method. Also, John Machin's answer provides a simpler method of writing the header row.
Simple example of using the writeheader()
method now available in 2.7 / 3.2:
from collections import OrderedDict
ordered_fieldnames = OrderedDict([('field1',None),('field2',None)])
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=ordered_fieldnames)
dw.writeheader()
# continue on to write data
Instantiating DictWriter requires a fieldnames argument.
From the documentation:
The fieldnames parameter identifies the order in which values in the dictionary passed to the writerow() method are written to the csvfile.
Put another way: The Fieldnames argument is required because Python dicts are inherently unordered.
Below is an example of how you'd write the header and data to a file.
Note: with
statement was added in 2.6. If using 2.5: from __future__ import with_statement
with open(infile,'rb') as fin:
dr = csv.DictReader(fin, delimiter='\t')
# dr.fieldnames contains values from first row of `f`.
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
headers = {}
for n in dw.fieldnames:
headers[n] = n
dw.writerow(headers)
for row in dr:
dw.writerow(row)
As @FM mentions in a comment, you can condense header-writing to a one-liner, e.g.:
with open(outfile,'wb') as fou:
dw = csv.DictWriter(fou, delimiter='\t', fieldnames=dr.fieldnames)
dw.writerow(dict((fn,fn) for fn in dr.fieldnames))
for row in dr:
dw.writerow(row)
# This code works fine in QtSpim simulator
.data
buffer: .space 20
str1: .asciiz "Enter string"
str2: .asciiz "You wrote:\n"
.text
main:
la $a0, str1 # Load and print string asking for string
li $v0, 4
syscall
li $v0, 8 # take in input
la $a0, buffer # load byte space into address
li $a1, 20 # allot the byte space for string
move $t0, $a0 # save string to t0
syscall
la $a0, str2 # load and print "you wrote" string
li $v0, 4
syscall
la $a0, buffer # reload byte space to primary address
move $a0, $t0 # primary address = t0 address (load pointer)
li $v0, 4 # print string
syscall
li $v0, 10 # end program
syscall
This seems simpler to me
<li *ngFor="let item of list | slice:0:10; let i=index" class="dropdown-item" (click)="onClick(item)">{{item.text}}</li>
Closer to your approach
<ng-container *ngFor="let item of list" let-i="index">
<li class="dropdown-item" (click)="onClick(item)" *ngIf="i<11">{{item.text}}</li>
</ng-container>
You can try the expand
option in Series.str.split('seperator', expand=True)
.
By default expand
is False
.
expand
: bool, defaultFalse
Expand the splitted strings into separate columns.
- If
True
, return DataFrame/MultiIndex expanding dimensionality.- If
False
, return Series/Index, containing lists of strings.
Joakim Backman's answer is specific, but this may bring additional clarity to it.
There is a minor difference. As per SQL For Dummies, 8th Edition (2013):
The DECIMAL data type is similar to NUMERIC. ... The difference is that your implementation may specify a precision greater than what you specify — if so, the implementation uses the greater precision. If you do not specify precision or scale, the implementation uses default values, as it does with the NUMERIC type.
It seems that the difference on some implementations of SQL is in data integrity. DECIMAL allows overflow from what is defined based on some system defaults, where as NUMERIC does not.
# Maybe you search this ??
For example in my case I use Symfony 4.4 (PHP).
If you want to update User, you need to insert the User password
encrypted and test with the current Password not encrypted to verify
if it's the same User.
For example :
public function updateUser(Request $req)
{
$entityManager = $this->getDoctrine()->getManager();
$repository = $entityManager->getRepository(User::class);
$user = $repository->find($req->get(id)); /// get User from your DB
if($user == null){
throw $this->createNotFoundException('User don't exist!!', $user);
}
$password_old_encrypted = $user->getPassword();//in your DB is always encrypted.
$passwordToUpdate = $req->get('password'); // not encrypted yet from request.
$passwordToUpdateEncrypted = password_hash($passwordToUpdate , PASSWORD_DEFAULT);
////////////VERIFY IF IT'S THE SAME PASSWORD
$isPass = password_verify($passwordToUpdateEncrypted , $password_old_encrypted );
if($isPass === false){ // failure
throw $this->createNotFoundException('Your password it's not verify', null);
}
return $isPass; //// true!! it's the same password !!!
}
Or you can just run power-shell command to append extra folder to the existing path:
$env:Path += ";C:\temp\terraform"
What if you want to use both id and name in the dropdown? Here is the code for that:
$mysqli = new mysqli($servername, $username, $password, $dbname);
$sqlSelect = "SELECT BrandID, BrandName FROM BrandMaster";
$result = $mysqli -> query ($sqlSelect);
echo "<select id='brandId' name='brandName'>";
while ($row = mysqli_fetch_array($result)) {
unset($id, $name);
$id = $row['BrandID'];
$name = $row['BrandName'];
echo '<option value="'.$id.'">'.$name.'</option>';
}
echo "</select>";
Change the parameter type from primitive to Object and put a null check in the setter. See example below
public void setPhoneNumber(Long phoneNumber) {
if (phoneNumber != null)
this.phoneNumber = phoneNumber;
else
this.extension = 0l;
}
String.format()
to the rescue!!
I was thinking about this problem for my own code and even though I probably will end up using something simpler/faster, here's another Linq solution that's similar to one that @Francisco added.
I just like it because it reads the most like what you actually want to do: "Take chars while the resulting substring has fewer than 2 spaces."
string input = "o1 1232.5467 1232.5467 1232.5467 1232.5467 1232.5467 1232.5467";
var substring = input.TakeWhile((c0, index) =>
input.Substring(0, index + 1).Count(c => c == ' ') < 2);
string result = new String(substring.ToArray());
In my case I was facing the problem because in my tomcat process specific keystore was given using
-Djavax.net.ssl.trustStore=/pathtosomeselfsignedstore/truststore.jks
Wheras I was importing the certificate to the cacert of JRE/lib/security and the changes were not reflecting. Then I did below command where /tmp/cert1.test contains the certificate of the target server
keytool -import -trustcacerts -keystore /pathtosomeselfsignedstore/truststore.jks -storepass password123 -noprompt -alias rapidssl-myserver -file /tmp/cert1.test
We can double check if the certificate import is successful
keytool -list -v -keystore /pathtosomeselfsignedstore/truststore.jks
and see if your taget server is found against alias rapidssl-myserver
You can read existing sheets of your interests, for example, 'x1', 'x2', into memory and 'write' them back prior to adding more new sheets (keep in mind that sheets in a file and sheets in memory are two different things, if you don't read them, they will be lost). This approach uses 'xlsxwriter' only, no openpyxl involved.
import pandas as pd
import numpy as np
path = r"C:\Users\fedel\Desktop\excelData\PhD_data.xlsx"
# begin <== read selected sheets and write them back
df1 = pd.read_excel(path, sheet_name='x1', index_col=0) # or sheet_name=0
df2 = pd.read_excel(path, sheet_name='x2', index_col=0) # or sheet_name=1
writer = pd.ExcelWriter(path, engine='xlsxwriter')
df1.to_excel(writer, sheet_name='x1')
df2.to_excel(writer, sheet_name='x2')
# end ==>
# now create more new sheets
x3 = np.random.randn(100, 2)
df3 = pd.DataFrame(x3)
x4 = np.random.randn(100, 2)
df4 = pd.DataFrame(x4)
df3.to_excel(writer, sheet_name='x3')
df4.to_excel(writer, sheet_name='x4')
writer.save()
writer.close()
If you want to preserve all existing sheets, you can replace above code between begin and end with:
# read all existing sheets and write them back
writer = pd.ExcelWriter(path, engine='xlsxwriter')
xlsx = pd.ExcelFile(path)
for sheet in xlsx.sheet_names:
df = xlsx.parse(sheet_name=sheet, index_col=0)
df.to_excel(writer, sheet_name=sheet)
try running:
su -c "Your command right here" -s /bin/sh username
This will run the command as username given that you have permissions to sudo as that user.
You mean size() don't you?
#{MyBean.somelist.size()}
works for me (using JBoss Seam which has the Jboss EL extensions)
To make the server respond with a valid JSONP array, wrap the JSON in brackets ()
and preprend the callback
:
echo $_GET['callback']."([{'fullname' : 'Jeff Hansen'}])";
Using json_encode() will convert a native PHP array into JSON:
$array = array(
'fullname' => 'Jeff Hansen',
'address' => 'somewhere no.3'
);
echo $_GET['callback']."(".json_encode($array).")";
Collections.reverse()
can do that job for you if you put your numbers in a List
of Integers
.
List<Integer> list = Arrays.asList(1, 4, 9, 16, 9, 7, 4, 9, 11);
System.out.println(list);
Collections.reverse(list);
System.out.println(list);
Output:
[1, 4, 9, 16, 9, 7, 4, 9, 11]
[11, 9, 4, 7, 9, 16, 9, 4, 1]
for me the solution was:
rm -rf ~/.node_gyp and
sudo npm install -g [email protected]
cd /usr/local/lib sudo ln -s ../../lib/libSystem.B.dylib libgcc_s.10.5.dylib
brew install gcc
npm install
@Html.TextArea("txtNotes", "", 4, 0, new { @class = "k-textbox", style = "width: 100%; height: 100%;" })
Please note that PrimeFaces supports the standard JSF 2.0+ keywords:
@this
Current component.@all
Whole view.@form
Closest ancestor form of current component.@none
No component.and the standard JSF 2.3+ keywords:
@child(n)
nth child.@composite
Closest composite component ancestor.@id(id)
Used to search components by their id ignoring the component tree structure and naming containers.@namingcontainer
Closest ancestor naming container of current component.@parent
Parent of the current component.@previous
Previous sibling.@next
Next sibling.@root
UIViewRoot instance of the view, can be used to start searching from the root instead the current component.But, it also comes with some PrimeFaces specific keywords:
@row(n)
nth row.@widgetVar(name)
Component with given widgetVar.And you can even use something called "PrimeFaces Selectors" which allows you to use jQuery Selector API. For example to process all inputs in a element with the CSS class myClass
:
process="@(.myClass :input)"
See:
First export the schema metadata:
expdp dumpfile=filename logfile=logname directory=dir_name schemas=schema_name
and then import by using the sqlfile
option (it will not import data it will just write the schema DDL to that file)
impdp dumpfile=filename logfile=logname directory=dir_name sqlfile=ddl.sql
The original question specifically asked for Unix but multiple answers have touched on Windows, and as a result there is misleading information on windows. The default timer resolution on windows is 15.6ms you can verify here.
Using a slightly modified script from cod3monk3y I can show that windows timer resolution is ~15milliseconds by default. I'm using a tool available here to modify the resolution.
Script:
import time
# measure the smallest time delta by spinning until the time changes
def measure():
t0 = time.time()
t1 = t0
while t1 == t0:
t1 = time.time()
return t1-t0
samples = [measure() for i in range(30)]
for s in samples:
print(f'time delta: {s:.4f} seconds')
These results were gathered on windows 10 pro 64-bit running python 3.7 64-bit.
This is force scroll for scrollview :
scrollView.post(new Runnable() {
@Override
public void run() {
scrollView.scrollTo(0, 0);
scrollView.pageScroll(View.FOCUS_UP);
scrollView.smoothScrollTo(0,0);
}
});
If you are dealing with a collection with a key (e.g. entries from a database) a quick (i.e. faster than the selected answer) solution would be
collection.OrderByDescending(c => c.Key).Take(3).OrderBy(c => c.Key);
For multiline text this answer is not working correctly. You can build a different String extension by using UILabel
extension String {
func height(constraintedWidth width: CGFloat, font: UIFont) -> CGFloat {
let label = UILabel(frame: CGRect(x: 0, y: 0, width: width, height: .greatestFiniteMagnitude))
label.numberOfLines = 0
label.text = self
label.font = font
label.sizeToFit()
return label.frame.height
}
}
The UILabel gets a fixed width and the .numberOfLines is set to 0. By adding the text and calling .sizeToFit() it automatically adjusts to the correct height.
Code is written in Swift 3
Use Java script to change action url dynamically Works for me well
function chgAction( action_name )
{
{% for data in sidebar_menu_data %}
if( action_name== "ABC"){ document.forms.action = "/ABC/";
}
else if( action_name== "XYZ"){ document.forms.action = "/XYZ/";
}
}
<form name="forms" method="post" action="<put default url>" onSubmit="return checkForm(this);">{% csrf_token %}
Create a file named tsconfig.json
in your project root and include following lines in it:
{
"compilerOptions": {
"emitDecoratorMetadata": true,
"module": "commonjs",
"target": "ES5",
"outDir": "ts-built",
"rootDir": "src"
}
}
Please note that outDir
should be the path of the directory to receive compiled JS files, and rootDir
should be the path of the directory containing your source (.ts) files.
Open a terminal and run tsc -w
, it'll compile any .ts
file in src
directory into .js
and store them in ts-built
directory.
The simplest solution is to select the second cell, and press =
. This will begin the fomula creation process. Now either type in the 1st cell reference (eg, A1
) or click on the first cell and press enter. This should make the second cell reference the value of the first cell.
To read up more on different options for referencing see - This Article.
Like this:
Dim rng as Range
Set rng = ActiveCell.Resize(numRows, numCols)
then read the contents of that range to an array:
Dim arr As Variant
arr = rng.Value
'arr is now a two-dimensional array of size (numRows, numCols)
or, select the range (I don't think that's what you really want, but you ask for this in the question).
rng.Select
I considered with timezone in my Google Docs like this:
timezone = "GMT+" + new Date().getTimezoneOffset()/60
var date = Utilities.formatDate(new Date(), timezone, "yyyy-MM-dd HH:mm"); // "yyyy-MM-dd'T'HH:mm:ss'Z'"
Take a look at Job Control on UNIX systems
If you don't have control of your shell, simply hitting ctrl + C should stop the process. If that doesn't work, you can try ctrl + Z and using the jobs
and kill -9 %<job #>
to kill it. The '-9' is a type of signal. You can man kill
to see a list of signals.
numpy.array
is a function that returns a numpy.ndarray
. There is no object type numpy.array.
From the documentation I found this
JObject o = new JObject(
new JProperty("Name", "John Smith"),
new JProperty("BirthDate", new DateTime(1983, 3, 20))
);
JsonSerializer serializer = new JsonSerializer();
Person p = (Person)serializer.Deserialize(new JTokenReader(o), typeof(Person));
Console.WriteLine(p.Name);
The class definition for Person
should be compatible to the following:
class Person {
public string Name { get; internal set; }
public DateTime BirthDate { get; internal set; }
}
Edit
If you are using a recent version of JSON.net and don't need custom serialization, please see TienDo's answer above (or below if you upvote me :P ), which is more concise.
I use this function in all my js projects
You call it: hideAndResetModals("#IdModalDialog")
You define if:
function hideAndResetModals(modalID)
{
$(modalID).modal('hide');
clearValidation(modalID); //You implement it if you need it. If not, you can remote this line
$(modalID).on('hidden.bs.modal', function ()
{
$(modalID).find('form').trigger('reset');
});
}
If you created your script on windows and want to run it on linux machine, and you're sure there is no mistake in your code, install dos2unix on linux machine and run dos2unix yourscript.sh
. Then, run the script.
You can solve that using display table.
Here is the updated JSFiddle that solves your problem.
CSS
.body {
display: table;
background-color: green;
}
.left-side {
background-color: blue;
float: none;
display: table-cell;
border: 1px solid;
}
.right-side {
background-color: red;
float: none;
display: table-cell;
border: 1px solid;
}
HTML
<div class="row body">
<div class="col-xs-9 left-side">
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
<p>sdfsdf</p>
</div>
<div class="col-xs-3 right-side">
asdfdf
</div>
</div>
Your query execution will return list of Object[]
.
List result_source = LoadSource.list();
for(Object[] objA : result_source) {
// read it all
}
Here is another cheat:
Limit your query if you don't really need all the rows. i.e.
WHERE rownum <= 10000
Then click on any cell of the results and do from your keyboard CTRL+END
. This will force SQL Developer to scroll until the bottom result of your query.
This has the advantage of keeping the default behavior and use this on demand.
I have to find distinct rows with the following details
class : Scountry
columns: countryID, countryName,isactive
There is no primary key in this. I have succeeded with the followin queries
public DbSet<SCountry> country { get; set; }
public List<SCountry> DoDistinct()
{
var query = (from m in country group m by new { m.CountryID, m.CountryName, m.isactive } into mygroup select mygroup.FirstOrDefault()).Distinct();
var Countries = query.ToList().Select(m => new SCountry { CountryID = m.CountryID, CountryName = m.CountryName, isactive = m.isactive }).ToList();
return Countries;
}
1)Yes it is, when there is style then it is styling your code(css).2) is belong to html it is like a container that keep your css.
FileReader
uses Java's platform default encoding, which depends on the system settings of the computer it's running on and is generally the most popular encoding among users in that locale.
If this "best guess" is not correct then you have to specify the encoding explicitly. Unfortunately, FileReader
does not allow this (major oversight in the API). Instead, you have to use new InputStreamReader(new FileInputStream(filePath), encoding)
and ideally get the encoding from metadata about the file.
The 500 code would normally indicate an error on the server, not anything with your code. Some thoughts
Disclaimer: I am from 42matters, who provides this data already on https://42matters.com/api , feel free to check it out or drop us a line.
As lenik mentioned there are open-source libraries that already help with obtaining some data from GPlay. If you want to build one yourself you can try to parse the Google Play App page, but you should pay attention to the following:
So that in mind getting one page metadata is a matter of fetching the page html and parsing it properly. With JSoup you can try:
HttpClient httpClient = HttpClientBuilder.create().build();
HttpGet request = new HttpGet(crawlUrl);
HttpResponse rsp = httpClient.execute(request);
int statusCode = rsp.getStatusLine().getStatusCode();
if (statusCode == 200) {
String content = EntityUtils.toString(rsp.getEntity());
Document doc = Jsoup.parse(content);
//parse content, whatever you need
Element price = doc.select("[itemprop=price]").first();
}
For that very simple use case that should get you started. However, the moment you want to do more interesting stuff, things get complicated:
The list goes on. If you don't want to do all this by yourself, you can consider 42matters API, which supports lookup and search, top google charts, advanced queries and filters. And this for 35 languages and more than 50 countries.
[2]:
Use below PHP code, with file name in the URL param "name"
<?php
$fileName = $_GET['name'];
if (isset($fileName)) {
$zip = new ZipArchive;
$res = $zip->open($fileName);
if ($res === TRUE) {
$zip->extractTo('./');
$zip->close();
echo 'Extracted file "'.$fileName.'"';
} else {
echo 'Cannot find the file name "'.$fileName.'" (the file name should include extension (.zip, ...))';
}
}
else {
echo 'Please set file name in the "name" param';
}
?>
When it s annoying with warnings like:
DevTools failed to load SourceMap: Could not load content for http://********/bootstrap/4.5.0/css/bootstrap.min.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
Follow this path and remove that tricky
/*# sourceMappingURL=bootstrap.min.css.map */
in bootstrap.min.css
Since .NET 4.5 you can use combination of async and await with Progress for sending updates to UI thread:
private void Calculate(int i)
{
double pow = Math.Pow(i, i);
}
public void DoWork(IProgress<int> progress)
{
// This method is executed in the context of
// another thread (different than the main UI thread),
// so use only thread-safe code
for (int j = 0; j < 100000; j++)
{
Calculate(j);
// Use progress to notify UI thread that progress has
// changed
if (progress != null)
progress.Report((j + 1) * 100 / 100000);
}
}
private async void button1_Click(object sender, EventArgs e)
{
progressBar1.Maximum = 100;
progressBar1.Step = 1;
var progress = new Progress<int>(v =>
{
// This lambda is executed in context of UI thread,
// so it can safely update form controls
progressBar1.Value = v;
});
// Run operation in another thread
await Task.Run(() => DoWork(progress));
// TODO: Do something after all calculations
}
Tasks are currently the preferred way to implement what BackgroundWorker
does.
Tasks and
Progress
are explained in more detail here:
Make sure your controller inherits from Controller
class.
It might even be crazier that stuff would work locally even without that.
Swift 3.0
Create a ViewController with the UITableViewDelegate and UITableViewDataSource protocols. Then create a tableView inside it, declaring its style to be UITableViewStyle.grouped. This will fix the headers.
lazy var tableView: UITableView = {
let view = UITableView(frame: UIScreen.main.bounds, style: UITableViewStyle.grouped)
view.delegate = self
view.dataSource = self
view.separatorStyle = .none
return view
}()
This is what worked for me:
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
public class UrlHelpers {
public static int getHTTPResponseStatusCode(String u) throws IOException {
URL url = new URL(u);
HttpURLConnection http = (HttpURLConnection)url.openConnection();
return http.getResponseCode();
}
}
Hope this helps someone :)
I think that you should make the reference to your config file
26399:C 16 Jan 08:51:13.413 # Warning: no config file specified, using the default config. In order to specify a config file use ./redis-server /path/to/redis.conf
you can try to start your redis server like
./redis-server /path/to/redis-stable/redis.conf
For practically all date and time matters I prefer to simplify things, very, very simple... Down to seconds stored in integers.
Integers will always be supported as integers in databases, flat files, etc. You do a little math and cast it into another type and you can format the date anyway you want.
Doing it this way, you don't have to worry when [insert current favorite database here] is replaced with [future favorite database] which coincidentally didn't use the date format you chose today.
It's just a little math overhead (eg. methods--takes two seconds, I'll post a gist if necessary) and simplifies things for a lot of operations regarding date/time later.
For me this was thrown when running unit tests under MSTest
(VS2015). Had to add
<startup useLegacyV2RuntimeActivationPolicy="true">
</startup>
in
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\TE.ProcessHost.Managed.exe.config
It works with System.Web.Mail (which is marked as obsolete):
private const string SMTP_SERVER = "http://schemas.microsoft.com/cdo/configuration/smtpserver";
private const string SMTP_SERVER_PORT = "http://schemas.microsoft.com/cdo/configuration/smtpserverport";
private const string SEND_USING = "http://schemas.microsoft.com/cdo/configuration/sendusing";
private const string SMTP_USE_SSL = "http://schemas.microsoft.com/cdo/configuration/smtpusessl";
private const string SMTP_AUTHENTICATE = "http://schemas.microsoft.com/cdo/configuration/smtpauthenticate";
private const string SEND_USERNAME = "http://schemas.microsoft.com/cdo/configuration/sendusername";
private const string SEND_PASSWORD = "http://schemas.microsoft.com/cdo/configuration/sendpassword";
System.Web.Mail.MailMessage mail = new System.Web.Mail.MailMessage();
mail.Fields[SMTP_SERVER] = "tempurl.org";
mail.Fields[SMTP_SERVER_PORT] = 465;
mail.Fields[SEND_USING] = 2;
mail.Fields[SMTP_USE_SSL] = true;
mail.Fields[SMTP_AUTHENTICATE] = 1;
mail.Fields[SEND_USERNAME] = "username";
mail.Fields[SEND_PASSWORD] = "password";
System.Web.Mail.SmtpMail.Send(mail);
What is your point of view regarding obsolete namespace usage?
If we're just collecting basic ways of detecting visibility, let me not forget:
opacity > 0.01; // probably more like .1 to actually be visible, but YMMV
And as to how to obtain attributes:
element.getAttribute(attributename);
So, in your example:
document.getElementById('snDealsPanel').getAttribute('visibility');
But wha? It doesn't work here. Look closer and you'll find that visibility is being updated not as an attribute on the element, but using the style
property. This is one of many problems with trying to do what you're doing. Among others: you can't guarantee that there's actually something to see in an element, just because its visibility, display, and opacity all have the correct values. It still might lack content, or it might lack a height and width. Another object might obscure it. For more detail, a quick Google search reveals this, and even includes a library to try solving the problem. (YMMV)
Check out the following, which are possible duplicates of this question, with excellent answers, including some insight from the mighty John Resig. However, your specific use-case is slightly different from the standard one, so I'll refrain from flagging:
(EDIT: OP SAYS HE'S SCRAPING PAGES, NOT CREATING THEM, SO BELOW ISN'T APPLICABLE) A better option? Bind the visibility of elements to model properties and always make visibility contingent on that model, much as Angular does with ng-show. You can do that using any tool you want: Angular, plain JS, whatever. Better still, you can change the DOM implementation over time, but you'll always be able to read state from the model, instead of the DOM. Reading your truth from the DOM is Bad. And slow. Much better to check the model, and trust in your implementation to ensure that the DOM state reflects the model. (And use automated testing to confirm that assumption.)
I was able to fix this on Windows 7 64-bit running Python 3.4.3 by running the set
command at a command prompt to determine the existing Visual Studio tools environment variable; in my case it was VS140COMNTOOLS
for Visual Studio Community 2015.
Then run the following (substituting the variable on the right-hand side if yours has a different name):
set VS100COMNTOOLS=%VS140COMNTOOLS%
This allowed me to install the PyCrypto module that was previously giving me the same error as the OP.
For a more permanent solution, add this environment variable to your Windows environment via Control Panel ("Edit the system environment variables"), though you might need to use the actual path instead of the variable substitution.
The proper test is:
if (capital != null && capital.length < 1) {
This ensures that capital
is always non null, when you perform the length check.
Also, as the comments suggest, capital
is null
because you never initialize it.
If you don't want to jQuery, here's the vanilla JavaScript:
///Mute
var video = document.getElementById("your-video-id");
video.muted= true;
//Unmute
var video = document.getElementById("your-video-id");
video.muted= false;
It will work for audio too, just put the element's id and it will work (and change the var name if you want, to 'media' or something suited for both audio/video as you like).
Try:
SELECT MEMBSHIP_ID
FROM user_payment
WHERE user_id=1
ORDER BY paym_date = (select MAX(paym_date) from user_payment and user_id=1);
Or:
SELECT MEMBSHIP_ID
FROM (
SELECT MEMBSHIP_ID, row_number() over (order by paym_date desc) rn
FROM user_payment
WHERE user_id=1 )
WHERE rn = 1
On windows use the name of the table in quotes:
TABLE "user";
or SELECT * FROM "user";
I think you can use loc
if you need update two columns to same value:
df1.loc[df1['stream'] == 2, ['feat','another_feat']] = 'aaaa'
print df1
stream feat another_feat
a 1 some_value some_value
b 2 aaaa aaaa
c 2 aaaa aaaa
d 3 some_value some_value
If you need update separate, one option is use:
df1.loc[df1['stream'] == 2, 'feat'] = 10
print df1
stream feat another_feat
a 1 some_value some_value
b 2 10 some_value
c 2 10 some_value
d 3 some_value some_value
Another common option is use numpy.where
:
df1['feat'] = np.where(df1['stream'] == 2, 10,20)
print df1
stream feat another_feat
a 1 20 some_value
b 2 10 some_value
c 2 10 some_value
d 3 20 some_value
EDIT: If you need divide all columns without stream
where condition is True
, use:
print df1
stream feat another_feat
a 1 4 5
b 2 4 5
c 2 2 9
d 3 1 7
#filter columns all without stream
cols = [col for col in df1.columns if col != 'stream']
print cols
['feat', 'another_feat']
df1.loc[df1['stream'] == 2, cols ] = df1 / 2
print df1
stream feat another_feat
a 1 4.0 5.0
b 2 2.0 2.5
c 2 1.0 4.5
d 3 1.0 7.0
If working with multiple conditions is possible use multiple numpy.where
or numpy.select
:
df0 = pd.DataFrame({'Col':[5,0,-6]})
df0['New Col1'] = np.where((df0['Col'] > 0), 'Increasing',
np.where((df0['Col'] < 0), 'Decreasing', 'No Change'))
df0['New Col2'] = np.select([df0['Col'] > 0, df0['Col'] < 0],
['Increasing', 'Decreasing'],
default='No Change')
print (df0)
Col New Col1 New Col2
0 5 Increasing Increasing
1 0 No Change No Change
2 -6 Decreasing Decreasing
I am providing my solution with the assumption on your business logic. Basicall in my design i will allow the table to store only one record for a user-game combination. So I will add a composite key to the table.
PRIMARY KEY (`user_id`,`game_id`)
you can also try this in sql-server !!
select a.city,a.total + b.total as mytotal from [dbo].[cash] a join [dbo].[cheque] b on a.city=b.city
or try using sum,union
select sum(total) as mytotal,city
from
(
select * from cash union
select * from cheque
) as vij
group by city
You Can use just finish();
everywhere after Activity Start for clear that Activity from Stack.
My tests with git-2.0.0 today indicate that the --mirror option does not copy hooks, the config file, the description file, the info/exclude file, and at least in my test case a few refs (which I don't understand.) I would not call it a "functionally identical copy, interchangeable with the original."
-bash-3.2$ git --version
git version 2.0.0
-bash-3.2$ git clone --mirror /git/hooks
Cloning into bare repository 'hooks.git'...
done.
-bash-3.2$ diff --brief -r /git/hooks.git hooks.git
Files /git/hooks.git/config and hooks.git/config differ
Files /git/hooks.git/description and hooks.git/description differ
...
Only in hooks.git/hooks: applypatch-msg.sample
...
Only in /git/hooks.git/hooks: post-receive
...
Files /git/hooks.git/info/exclude and hooks.git/info/exclude differ
...
Files /git/hooks.git/packed-refs and hooks.git/packed-refs differ
Only in /git/hooks.git/refs/heads: fake_branch
Only in /git/hooks.git/refs/heads: master
Only in /git/hooks.git/refs: meta
You just need a second inner join that links the ID Number
that you have now to the ID Number
of the third table. Afterwards, replace the ID Number
by the Hall Name
and voilá :)
Create a "jump link" using the following format:
http://www.somesite.com/somepage#anchor
Where anchor is the id of the element you wish to link to on that page. Use browser development tools / view source to find the id of the element you wish to link to.
If the element doesnt have an id and you dont control that site then you cant do it.
In Android Studio you can find all your app signing information without any console command:
Open your project
Click on Gradle from right side panel
In Gradle projects panel open folders: Your Project -> Tasks-> Android
First, please do not use extract(), it can be a security problem because it is easy to manipulate POST parameters
In addition, you don't have to use variable variable names (that sounds odd), instead:
foreach($_POST as $key => $value) {
echo "POST parameter '$key' has '$value'";
}
To ensure that you have only parameters beginning with 'item_name' you can check it like so:
$param_name = 'item_name';
if(substr($key, 0, strlen($param_name)) == $param_name) {
// do something
}
Simplest way is probably as follows - you basically need to construct a new array that is one element smaller, then copy the elements you want to keep to the right positions.
int n=oldArray.length-1;
String[] newArray=new String[n];
System.arraycopy(oldArray,1,newArray,0,n);
Note that if you find yourself doing this kind of operation frequently, it could be a sign that you should actually be using a different kind of data structure, e.g. a linked list. Constructing a new array every time is an O(n) operation, which could get expensive if your array is large. A linked list would give you O(1) removal of the first element.
An alternative idea is not to remove the first item at all, but just increment an integer that points to the first index that is in use. Users of the array will need to take this offset into account, but this can be an efficient approach. The Java String class actually uses this method internally when creating substrings.
The built-in matrix
function has the nice option to enter data byrow
. Combine that with an unlist
on your source list will give you a matrix. We also need to specify the number of rows so it can break up the unlisted data. That is:
> matrix(unlist(a), byrow=TRUE, nrow=length(a) )
[,1] [,2] [,3] [,4] [,5] [,6]
[1,] 1 1 2 3 4 5
[2,] 2 1 2 3 4 5
[3,] 3 1 2 3 4 5
[4,] 4 1 2 3 4 5
[5,] 5 1 2 3 4 5
[6,] 6 1 2 3 4 5
[7,] 7 1 2 3 4 5
[8,] 8 1 2 3 4 5
[9,] 9 1 2 3 4 5
[10,] 10 1 2 3 4 5
$ sudo apt-get install libpq-dev
Year, this solve my problem. After execute this, do: pip install psycopg2
(rewritten 2015-07-28)
The default behavior of Eclipse when compiling code with errors in it, is to generate byte code throwing the exception you see, allowing the program to be run. This is possible as Eclipse uses its own built-in compiler, instead of javac
from the JDK which Apache Maven uses, and which fails the compilation completely for errors. If you use Eclipse on a Maven project which you are also working with using the command line mvn
command, this may happen.
The cure is to fix the errors and recompile, before running again.
The setting is marked with a red box in this screendump:
I got this error for a stupid mistake, the variable name in the @PathVariable wasn't matching the one in the @RequestMapping
For example
@RequestMapping(value = "/whatever/{**contentId**}", method = RequestMethod.POST)
public … method(@PathVariable Integer **contentID**){
}
It may help others
In React 16.8+, using functional components, you would do
import React from 'react';
import { Button, Linking } from 'react-native';
const ExternalLinkBtn = (props) => {
return <Button
title={props.title}
onPress={() => {
Linking.openURL(props.url)
.catch(err => {
console.error("Failed opening page because: ", err)
alert('Failed to open page')
})}}
/>
}
export default function exampleUse() {
return (
<View>
<ExternalLinkBtn title="Example Link" url="https://example.com" />
</View>
)
}
Go with the following if you really want to use a loop. Nobody has actually answered how to feed data in a loop:
def plot(data):
fig = plt.figure(figsize=(100, 100))
for idx, k in enumerate(data.keys(), 1):
x, y = data[k].keys(), data[k].values
plt.subplot(63, 10, idx)
plt.bar(x, y)
plt.show()
It's funny because Stack Overflow actually has their own formatting function for the String
prototype called formatUnicorn
. Try it! Go into the console and type something like:
"Hello, {name}, are you feeling {adjective}?".formatUnicorn({name:"Gabriel", adjective: "OK"});
You get this output:
Hello, Gabriel, are you feeling OK?
You can use objects, arrays, and strings as arguments! I got its code and reworked it to produce a new version of String.prototype.format
:
String.prototype.formatUnicorn = String.prototype.formatUnicorn ||
function () {
"use strict";
var str = this.toString();
if (arguments.length) {
var t = typeof arguments[0];
var key;
var args = ("string" === t || "number" === t) ?
Array.prototype.slice.call(arguments)
: arguments[0];
for (key in args) {
str = str.replace(new RegExp("\\{" + key + "\\}", "gi"), args[key]);
}
}
return str;
};
Note the clever Array.prototype.slice.call(arguments)
call -- that means if you throw in arguments that are strings or numbers, not a single JSON-style object, you get C#'s String.Format
behavior almost exactly.
"a{0}bcd{1}ef".formatUnicorn("FOO", "BAR"); // yields "aFOObcdBARef"
That's because Array
's slice
will force whatever's in arguments
into an Array
, whether it was originally or not, and the key
will be the index (0, 1, 2...) of each array element coerced into a string (eg, "0", so "\\{0\\}"
for your first regexp pattern).
Neat.
border-radius
of 50% which will make it circular in shape. (note: no prefix has been required for a long time)background-color
/ gradients / (even pseudo elements
) to create something like this:.red {_x000D_
background-color: red;_x000D_
}_x000D_
.green {_x000D_
background-color: green;_x000D_
}_x000D_
.blue {_x000D_
background-color: blue;_x000D_
}_x000D_
.yellow {_x000D_
background-color: yellow;_x000D_
}_x000D_
.sphere {_x000D_
height: 200px;_x000D_
width: 200px;_x000D_
border-radius: 50%;_x000D_
text-align: center;_x000D_
vertical-align: middle;_x000D_
font-size: 500%;_x000D_
position: relative;_x000D_
box-shadow: inset -10px -10px 100px #000, 10px 10px 20px black, inset 0px 0px 10px black;_x000D_
display: inline-block;_x000D_
margin: 5%;_x000D_
}_x000D_
.sphere::after {_x000D_
background-color: rgba(255, 255, 255, 0.3);_x000D_
content: '';_x000D_
height: 45%;_x000D_
width: 12%;_x000D_
position: absolute;_x000D_
top: 4%;_x000D_
left: 15%;_x000D_
border-radius: 50%;_x000D_
transform: rotate(40deg);_x000D_
}
_x000D_
<div class="sphere red"></div>_x000D_
<div class="sphere green"></div>_x000D_
<div class="sphere blue"></div>_x000D_
<div class="sphere yellow"></div>_x000D_
<div class="sphere"></div>
_x000D_
put respond.js
at bottom of page but before closing body
tag and here is link of respond.js
and run this code in your localhost.
If you know that your input will be either "True" or "False" then why not use:
def bool_convert(s):
return s == "True"
Note: All of the following instructions apply universally (aka to all OSes) unless otherwise specified.
You will need:
Change the file extension of the .apk
file by either adding a .zip
extension to the filename, or to change .apk
to .zip
.
For example, com.example.apk
becomes com.example.zip
, or com.example.apk.zip
. Note that on Windows and macOS, it may prompt you whether you are sure you want to change the file extension. Click OK or Add if you're using macOS:
Extract the renamed APK file in a specific folder. For example, let that folder be demofolder
.
If it didn't work, try opening the file in another application such as WinZip or 7-Zip.
For macOS, you can try running unzip
in Terminal (available at /Applications/Terminal.app
), where it takes one or more arguments: the file to unzip + optional arguments. See man unzip
for documentation and arguments.
Download dex2jar
(see all releases on GitHub) and extract that zip file in the same folder as stated in the previous point.
Open command prompt (or a terminal) and change your current directory to the folder created in the previous point and type the command d2j-dex2jar.bat classes.dex
and press enter. This will generate classes-dex2jar.jar
file in the same folder.
d2j-dex2jar.bat
with d2j-dex2jar.sh
. In other words, run d2j-jar2dex.sh classes.dex
in the terminal and press enter.Download Java Decompiler (see all releases on Github) and extract it and start (aka double click) the executable/application.
From the JD-GUI window, either drag and drop the generated classes-dex2jar.jar
file into it, or go to File > Open File...
and browse for the jar.
Next, in the menu, go to File > Save All Sources
(Windows: Ctrl+Alt+S, macOS: ?+?+S). This should open a dialog asking you where to save a zip file named `classes-dex2jar.jar.src.zip" consisting of all packages and java files. (You can rename the zip file to be saved)
Extract that zip file (classes-dex2jar.jar.src.zip
) and you should get all java files of the application.
xml
files from APKapktool
website for installation instructions and moreWindows:
myxmlfolder
).myxmlfolder
folder and rename the apktool jar file to apktool.jar
..apk
file in the same folder (i.e myxmlfolder
).Open the command prompt (or terminal) and change your current directory to the folder where apktool
is stored (in this case, myxmlfolder
). Next, type the command apktool if framework-res.apk
.
What we're doing here is that we are installing a framework. For more info, see the docs.
In the command prompt, type the command apktool d filename.apk
(where filename
is the name of apk file). This should decode the file. For more info, see the docs.
This should result in a folder filename.out
being outputted, where filename
is the original name of the apk file without the .apk
file extension. In this folder are all the XML files such as layout, drawables etc.
Source: How to get source code from APK file - Comptech Blogspot
change
public static final String URL = "http://api-Location";
to
public static final String URL = "https://api-Location"
it's happen because i'm using 000webhostapp app
A slightly modified version of the above answers written in a more concise way. This will validate any GUID with hyphens (however easily modified to make hyphens optional). This will also support upper and lower case characters which has become the convention regardless of the specification:
/^([0-9a-fA-F]{8})-(([0-9a-fA-F]{4}\-){3})([0-9a-fA-F]{12})$/i
The key here is the repeating part below
(([0-9a-fA-F]{4}\-){3})
Which simply repeats the 4 char patterns 3 times
The first solution is to use the java.util.Random
class:
import java.util.Random;
Random rand = new Random();
// Obtain a number between [0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
Another solution is using Math.random()
:
double random = Math.random() * 49 + 1;
or
int random = (int)(Math.random() * 50 + 1);
tr.group-title {
padding-top: .5rem;
border-top: 2rem solid lightgray;
}
tr.group-title > td h5 {
margin-top: -1.9rem;
}
<tbody>
<tr class="group-title">
<td colspan="6">
<h5 align="center">{{ group.title }}</h5>
</td>
</tr>
Works in Chrome and Edge
MaxMind GeoIP is a good service. They also have a free city-level lookup service.
Modifications to sys.path
only apply for the life of that Python interpreter. If you want to do it permanently you need to modify the PYTHONPATH
environment variable:
PYTHONPATH="/Me/Documents/mydir:$PYTHONPATH"
export PYTHONPATH
Note that PATH
is the system path for executables, which is completely separate.
**You can write the above in ~/.bash_profile
and the source it using source ~/.bash_profile
You are using the wrong iteration counter, replace inp.charAt(i)
with inp.charAt(j)
.
Spent a day on my similar issue, but all these answers didn't help.
Turned out in my case, I didn't enable Windows Authentication in IIS setting...
Alternatively, you could create a regular Mac OS X application from your script using Platypus
To generate a random value between rangeMin
and rangeMax
:
Random r = new Random();
double randomValue = rangeMin + (rangeMax - rangeMin) * r.nextDouble();
The thread was opened quite some time ago. I think in the meanwhile the usage of a ternary operator is the simplest option:
maybeObject ? console.log(maybeObject.id) : ""
This is the solution:
export default Home;
I got the same error from having two references to different versions of jQuery.
In my master page:
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
And also on the page:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"> </script>
As per different sources, I think the minimum length in E-164 format depends on country to country. For eg:
For Sweden : The minimum number length (excluding the country code) is 7 digits. - Official Source? (country code 46)
For Solomon Islands its 5 for fixed line phones. - Source (country code 677)
... and so on. So including country code, the minimum length is 9 digits for Sweden and 11 for Israel and 8 for Solomon Islands.
Edit (Clean Solution): Actually, Instead of validating an international phone number by having different checks like length etc, you can use the Google's libphonenumber library. It can validate a phone number in E164 format directly. It will take into account everything and you don't even need to give the country if the number is in valid E164 format. Its pretty good! Taking an example:
String phoneNumberE164Format = "+14167129018"
PhoneNumberUtil phoneUtil = PhoneNumberUtil.getInstance();
try {
PhoneNumber phoneNumberProto = phoneUtil.parse(phoneNumberE164Format, null);
boolean isValid = phoneUtil.isValidNumber(phoneNumberProto); // returns true if valid
if (isValid) {
// Actions to perform if the number is valid
} else {
// Do necessary actions if its not valid
}
} catch (NumberParseException e) {
System.err.println("NumberParseException was thrown: " + e.toString());
}
If you know the country for which you are validating the numbers, you don;t even need the E164 format and can specify the country in .parse
function instead of passing null
.
For both hardware device back button and soft home (back) button e.g. " <- " this is what works for me. (*Note I have an app bar / toolbar in the activity)
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
//finish();
onBackPressed();
break;
}
return true;
}
@Override
public void onBackPressed() {
//Execute your code here
finish();
}
Cheers!
If you need binary mode, you'll need to do it the hard way:
s = File.open(filename, 'rb') { |f| f.read }
If not, shorter and sweeter is:
s = IO.read(filename)
Reinstall java and choose a destination folder without a space
Simplest Definitions
Inner Join: Returns matched records from both tables.
Full Outer Join: Returns matched and unmatched records from both tables with null for unmatched records from Both Tables.
Left Outer Join: Returns matched and unmatched records only from table on Left Side.
Right Outer Join: Returns matched and unmatched records only from table on Right Side.
In-Short
Matched + Left Unmatched + Right Unmatched = Full Outer Join
Matched + Left Unmatched = Left Outer Join
Matched + Right Unmatched = Right Outer Join
Matched = Inner Join
Change
$array=array_map('intval', explode(',', $string));
To:
$array= implode(',', array_map('intval', explode(',', $string)));
array_map returns an array, not a string. You need to convert the array to a comma separated string in order to use in the WHERE clause.
Meaning the 2nd parameter('master
') of the "git push
" command -
$ git push origin master
can be made clear by initiating "push
" command from 'news-item
' branch. It caused local "master
" branch to be pushed to the remote 'master
' branch. For more information refer
https://git-scm.com/docs/git-push
where <refspec>
in
[<repository> [<refspec>…?]
is written to mean "specify what destination ref to update with what source object.
"
For your reference, here is a screen capture how I verified this statement.
class Program
{
static void Main(string[] args)
{
String unicodeString =
"This Unicode string contains two characters " +
"with codes outside the traditional ASCII code range, " +
"Pi (\u03a0) and Sigma (\u03a3).";
Console.WriteLine("Original string:");
Console.WriteLine(unicodeString);
UnicodeEncoding unicodeEncoding = new UnicodeEncoding();
byte[] utf16Bytes = unicodeEncoding.GetBytes(unicodeString);
char[] chars = unicodeEncoding.GetChars(utf16Bytes, 2, utf16Bytes.Length - 2);
string s = new string(chars);
Console.WriteLine();
Console.WriteLine("Char Array:");
foreach (char c in chars) Console.Write(c);
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("String from Char Array:");
Console.WriteLine(s);
Console.ReadKey();
}
}
There's a really good paper by Microsoft Research called To Blob or Not To Blob.
Their conclusion after a large number of performance tests and analysis is this:
if your pictures or document are typically below 256KB in size, storing them in a database VARBINARY column is more efficient
if your pictures or document are typically over 1 MB in size, storing them in the filesystem is more efficient (and with SQL Server 2008's FILESTREAM attribute, they're still under transactional control and part of the database)
in between those two, it's a bit of a toss-up depending on your use
If you decide to put your pictures into a SQL Server table, I would strongly recommend using a separate table for storing those pictures - do not store the employee photo in the employee table - keep them in a separate table. That way, the Employee table can stay lean and mean and very efficient, assuming you don't always need to select the employee photo, too, as part of your queries.
For filegroups, check out Files and Filegroup Architecture for an intro. Basically, you would either create your database with a separate filegroup for large data structures right from the beginning, or add an additional filegroup later. Let's call it "LARGE_DATA".
Now, whenever you have a new table to create which needs to store VARCHAR(MAX) or VARBINARY(MAX) columns, you can specify this file group for the large data:
CREATE TABLE dbo.YourTable
(....... define the fields here ......)
ON Data -- the basic "Data" filegroup for the regular data
TEXTIMAGE_ON LARGE_DATA -- the filegroup for large chunks of data
Check out the MSDN intro on filegroups, and play around with it!
After playing around with other answer, here is my solution for this task. Implementing this way helps me centralize cleanup in one place, preventing double handling the cleanup.
const others = [`SIGINT`, `SIGUSR1`, `SIGUSR2`, `uncaughtException`, `SIGTERM`]
others.forEach((eventType) => {
process.on(eventType, exitRouter.bind(null, { exit: true }));
})
function exitRouter(options, exitCode) {
if (exitCode || exitCode === 0) console.log(`ExitCode ${exitCode}`);
if (options.exit) process.exit();
}
function exitHandler(exitCode) {
console.log(`ExitCode ${exitCode}`);
console.log('Exiting finally...')
}
process.on('exit', exitHandler)
For the demo purpose, this is link to my gist. In the file, i add a setTimeout to fake the process running.
If you run node node-exit-demo.js
and do nothing, then after 2 seconds, you see the log:
The service is finish after a while.
ExitCode 0
Exiting finally...
Else if before the service finish, you terminate by ctrl+C
, you'll see:
^CExitCode SIGINT
ExitCode 0
Exiting finally...
What happened is the Node process exited initially with code SIGINT, then it routes to process.exit() and finally exited with exit code 0.
Other answers are outdated, or incomplete, or simply don't work.
You need to also specify an X-11 server on the host machine to handle the launch of GUId programs. If the client is a Windows machine install Xming. If the client is a Linux machine install XQuartz.
Now suppose this is Windows connecting to Linux. In order to be able to launch X11 programs as well over putty do the following:
- Launch XMing on Windows client
- Launch Putty
* Fill in basic options as you know in session category
* Connection -> SSH -> X11
-> Enable X11 forwarding
-> X display location = :0.0
-> MIT-Magic-Cookie-1
-> X authority file for local display = point to the Xming.exe executable
Of course the ssh server should have permitted Desktop Sharing "Allow other user to view your desktop".
MobaXterm and other complete remote desktop programs work too.
The following steps can convert the file format for DOS to Unix:
:e ++ff=dos Edit file again, using dos file format ('fileformats' is ignored).[A 1]
:setlocal ff=unix This buffer will use LF-only line endings when written.[A 2]
:w Write buffer using Unix (LF-only) line endings.
Reference: File format
this could be a solution?
declare @step2cmd nvarchar(200)
DECLARE @rcount NUMERIC(18,0)
set @step2cmd = 'select count(*) from uat.ap.ztscm_protocollo' --+ @nometab
EXECUTE @rcount=sp_executesql @step2cmd
select @rcount
Perhaps you need to specify a top value in your css rule set, so that it will know what value to animate from.
Forget float, margin and html 3/5. The mail is very obsolete. You need do all with table. One line = one table. You need margin or padding ? Do another column.
Example : i need one line with 1 One Picture of 40*40 2 One margin of 10 px 3 One text of 400px
I start my line :
<table style=" background-repeat:no-repeat; width:450px;margin:0;" cellpadding="0" cellspacing="0" border="0">
<tr style="height:40px; width:450px; margin:0;">
<td style="height:40px; width:40px; margin:0;">
<img src="" style="width=40px;height40;margin:0;display:block"
</td>
<td style="height:40px; width:10px; margin:0;">
</td>
<td style="height:40px; width:400px; margin:0;">
<p style=" margin:0;"> my text </p>
</td>
</tr>
</table>
This works for me - I finally figured a one liner
df <- as.data.frame(lapply(df,function (y) if(class(y)=="factor" ) as.character(y) else y),stringsAsFactors=F)
If you don't mind using a bit of JavaScript, jQuery's fadeTo() works nicely in every browser I've tried.
jQuery(selector).fadeTo(speed, opacity);
This example will help you to understand the React Life Cycle Hooks.
You can setState
in getDerivedStateFromProps
method i.e. static
and trigger the method after props change in componentDidUpdate
.
In componentDidUpdate
you will get 3rd param which returns from getSnapshotBeforeUpdate
.
You can check this codesandbox link
// Child component_x000D_
class Child extends React.Component {_x000D_
// First thing called when component loaded_x000D_
constructor(props) {_x000D_
console.log("constructor");_x000D_
super(props);_x000D_
this.state = {_x000D_
value: this.props.value,_x000D_
color: "green"_x000D_
};_x000D_
}_x000D_
_x000D_
// static method_x000D_
// dont have access of 'this'_x000D_
// return object will update the state_x000D_
static getDerivedStateFromProps(props, state) {_x000D_
console.log("getDerivedStateFromProps");_x000D_
return {_x000D_
value: props.value,_x000D_
color: props.value % 2 === 0 ? "green" : "red"_x000D_
};_x000D_
}_x000D_
_x000D_
// skip render if return false_x000D_
shouldComponentUpdate(nextProps, nextState) {_x000D_
console.log("shouldComponentUpdate");_x000D_
// return nextState.color !== this.state.color;_x000D_
return true;_x000D_
}_x000D_
_x000D_
// In between before real DOM updates (pre-commit)_x000D_
// has access of 'this'_x000D_
// return object will be captured in componentDidUpdate_x000D_
getSnapshotBeforeUpdate(prevProps, prevState) {_x000D_
console.log("getSnapshotBeforeUpdate");_x000D_
return { oldValue: prevState.value };_x000D_
}_x000D_
_x000D_
// Calls after component updated_x000D_
// has access of previous state and props with snapshot_x000D_
// Can call methods here_x000D_
// setState inside this will cause infinite loop_x000D_
componentDidUpdate(prevProps, prevState, snapshot) {_x000D_
console.log("componentDidUpdate: ", prevProps, prevState, snapshot);_x000D_
}_x000D_
_x000D_
static getDerivedStateFromError(error) {_x000D_
console.log("getDerivedStateFromError");_x000D_
return { hasError: true };_x000D_
}_x000D_
_x000D_
componentDidCatch(error, info) {_x000D_
console.log("componentDidCatch: ", error, info);_x000D_
}_x000D_
_x000D_
// After component mount_x000D_
// Good place to start AJAX call and initial state_x000D_
componentDidMount() {_x000D_
console.log("componentDidMount");_x000D_
this.makeAjaxCall();_x000D_
}_x000D_
_x000D_
makeAjaxCall() {_x000D_
console.log("makeAjaxCall");_x000D_
}_x000D_
_x000D_
onClick() {_x000D_
console.log("state: ", this.state);_x000D_
}_x000D_
_x000D_
render() {_x000D_
return (_x000D_
<div style={{ border: "1px solid red", padding: "0px 10px 10px 10px" }}>_x000D_
<p style={{ color: this.state.color }}>Color: {this.state.color}</p>_x000D_
<button onClick={() => this.onClick()}>{this.props.value}</button>_x000D_
</div>_x000D_
);_x000D_
}_x000D_
}_x000D_
_x000D_
// Parent component_x000D_
class Parent extends React.Component {_x000D_
constructor(props) {_x000D_
super(props);_x000D_
this.state = { value: 1 };_x000D_
_x000D_
this.tick = () => {_x000D_
this.setState({_x000D_
date: new Date(),_x000D_
value: this.state.value + 1_x000D_
});_x000D_
};_x000D_
}_x000D_
_x000D_
componentDidMount() {_x000D_
setTimeout(this.tick, 2000);_x000D_
}_x000D_
_x000D_
render() {_x000D_
return (_x000D_
<div style={{ border: "1px solid blue", padding: "0px 10px 10px 10px" }}>_x000D_
<p>Parent</p>_x000D_
<Child value={this.state.value} />_x000D_
</div>_x000D_
);_x000D_
}_x000D_
}_x000D_
_x000D_
function App() {_x000D_
return (_x000D_
<React.Fragment>_x000D_
<Parent />_x000D_
</React.Fragment>_x000D_
);_x000D_
}_x000D_
_x000D_
const rootElement = document.getElementById("root");_x000D_
ReactDOM.render(<App />, rootElement);
_x000D_
<div id="root"></div>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/16.6.3/umd/react.production.min.js"></script>_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/16.6.3/umd/react-dom.production.min.js"></script>
_x000D_
You have two choices for getting a microsecond timestamp. The first (and best) choice, is to use the timeval
type directly:
struct timeval GetTimeStamp() {
struct timeval tv;
gettimeofday(&tv,NULL);
return tv;
}
The second, and for me less desirable, choice is to build a uint64_t out of a timeval
:
uint64_t GetTimeStamp() {
struct timeval tv;
gettimeofday(&tv,NULL);
return tv.tv_sec*(uint64_t)1000000+tv.tv_usec;
}
If you set 'data' in your creation form, this value will be not modified when edit your entity.
My solution is :
public function buildForm(FormBuilderInterface $builder, array $options) {
// In my example, data is an associated array
$data = $builder->getData();
$builder->add('myfield', 'text', array(
'label' => 'Field',
'data' => array_key_exits('myfield', $data) ? $data['myfield'] : 'Default value',
));
}
Bye.
(DEMO)
Codes:
.backimage {width:99%; height:98%; position:absolute; background:transparent url("http://upload.wikimedia.org/wikipedia/commons/4/41/Brickwall_texture.jpg") repeat scroll 0% 0%; }
and
<div>
<div class="backimage"></div>
YOUR OTHER CONTENTTT
</div>
Here's a sample class:
public class Increment
{
public static void main(String [] args)
{
for (int i = 0; i < args.length; ++i)
{
System.out.println(args[i]);
}
}
}
If I disassemble this class using javap.exe I get this:
Compiled from "Increment.java"
public class Increment extends java.lang.Object{
public Increment();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
public static void main(java.lang.String[]);
Code:
0: iconst_0
1: istore_1
2: iload_1
3: aload_0
4: arraylength
5: if_icmpge 23
8: getstatic #2; //Field java/lang/System.out:Ljava/io/PrintStream;
11: aload_0
12: iload_1
13: aaload
14: invokevirtual #3; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
17: iinc 1, 1
20: goto 2
23: return
}
If I change the loop so it uses i++ and disassemble again I get this:
Compiled from "Increment.java"
public class Increment extends java.lang.Object{
public Increment();
Code:
0: aload_0
1: invokespecial #1; //Method java/lang/Object."<init>":()V
4: return
public static void main(java.lang.String[]);
Code:
0: iconst_0
1: istore_1
2: iload_1
3: aload_0
4: arraylength
5: if_icmpge 23
8: getstatic #2; //Field java/lang/System.out:Ljava/io/PrintStream;
11: aload_0
12: iload_1
13: aaload
14: invokevirtual #3; //Method java/io/PrintStream.println:(Ljava/lang/String;)V
17: iinc 1, 1
20: goto 2
23: return
}
When I compare the two, TextPad tells me that the two are identical.
What this says is that from the point of view of the generated byte code there's no difference in a loop. In other contexts there is a difference between ++i and i++, but not for loops.
To create a new empty column and fill it with the same value (here 100) for every row (in Toad for Oracle):
ALTER TABLE my_table ADD new_column INT;
UPDATE my_table SET new_column = 100;
This frustrated the heck out of me, and none of the above answers really got me what I wanted. I finally found the answer I was looking for, on a mac if you do ? + option + F it will bring up a Find-Replace bar at the bottom of your editor which is local to the file you have open.
There is an icon option which when hovered over says "In Selection" that you can select to find and replace within a selection. I've pointed to the correct icon in the screenshot below.
Hit replace all, and voila, all instances of '0'
will be replaced with '255'
.
Note: this feature is ONLY available when you use ? + option + F.
It does NOT appear when you use ? + shift + F.
Note: this will replace all instances of '0'
with '255'
. If you wanted to replace 0
(without the quotes) with 255
, then just put 0
(without quotes) and 255
in the Find What:
and Replace With:
fields respectively.
Note:
option key is also labeled as the alt key.
? key is also labeled as the command key.
npx
runs a command of a package without installing it explicitly.
Use cases:
package.json
to execute something without installing these packages as project's dependencies.Syntax:
npx [options] [-p|--package <package>] <command> [command-arg]...
Package is optional:
npx -p uglify-js uglifyjs --output app.min.js app.js common.js
+----------------+ +--------------------------------------------+
package (optional) command, followed by arguments
For example:
Start a HTTP Server : npx http-server
Lint code : npx eslint ./src
# Run uglifyjs command in the package uglify-js
Minify JS : npx -p uglify-js uglifyjs -o app.min.js app.js common.js
Minify CSS : npx clean-css-cli -o style.min.css css/bootstrap.css style.css
Minify HTML : npx html-minifier index-2.html -o index.html --remove-comments --collapse-whitespace
Scan for open ports : npx evilscan 192.168.1.10 --port=10-9999
Cast video to Chromecast : npx castnow http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ForBiggerFun.mp4
More about command
:
My answer is for Firebase and position 0 is a workaround
Parcelable state;
DatabaseReference everybody = db.getReference("Everybody Room List");
everybody.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
state = listView.onSaveInstanceState(); // Save
progressBar.setVisibility(View.GONE);
arrayList.clear();
for (DataSnapshot messageSnapshot : dataSnapshot.getChildren()) {
Messages messagesSpacecraft = messageSnapshot.getValue(Messages.class);
arrayList.add(messagesSpacecraft);
}
listView.setAdapter(convertView);
listView.onRestoreInstanceState(state); // Restore
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
}
});
and convertView
position 0 a add a blank item that you are not using
public class Chat_ConvertView_List_Room extends BaseAdapter {
private ArrayList<Messages> spacecrafts;
private Context context;
@SuppressLint("CommitPrefEdits")
Chat_ConvertView_List_Room(Context context, ArrayList<Messages> spacecrafts) {
this.context = context;
this.spacecrafts = spacecrafts;
}
@Override
public int getCount() {
return spacecrafts.size();
}
@Override
public Object getItem(int position) {
return spacecrafts.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@SuppressLint({"SetTextI18n", "SimpleDateFormat"})
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(context).inflate(R.layout.message_model_list_room, parent, false);
}
final Messages s = (Messages) this.getItem(position);
if (position == 0) {
convertView.getLayoutParams().height = 1; // 0 does not work
} else {
convertView.getLayoutParams().height = RelativeLayout.LayoutParams.WRAP_CONTENT;
}
return convertView;
}
}
I have seen this work temporarily without disturbing the user, I hope it works for you
I'm sorry, I don't know why you get the error message. However, I'm using Java 7 and Windows 10 and the solution for me was to temporarily use Java 8 by changing the JAVA_HOME
environment variable. Then I could run mvn install
and fetch from Maven Central Repository.
MacVim is just Vim. Anything you are used to do in Vim will work exactly the same way in MacVim.
MacVim is more integrated in the whole OS than Vim in the Terminal or even GVim in Linux, it follows a lot of Mac OS X's conventions.
If you work mainly with GUI apps (YummyFTP + GitX + Charles, for example) you may prefer MacVim.
If you work mainly with CLI apps (ssh + svn + tcpdump, for example) you may prefer vim in the terminal.
Entering and leaving one realm (CLI) for the other (GUI) and vice-versa can be "expensive".
I use both MacVim and Vim depending on the task and the context: if I'm in CLI-land I'll just type vim filename
and if I'm in GUI-land I'll just invoke Quicksilver and launch MacVim.
When I switched from TextMate I kind of liked the fact that MacVim supported almost all of the regular shortcuts Mac users are accustomed to. I added some of my own, mimiking TextMate but, since I was working in multiple environments I forced my self to learn the vim way. Now I use both MacVim and Vim almost exactly the same way. Using one or the other is just a question of context for me.
Also, like El Isra said, the default vim (CLI) in OS X is slightly outdated. You may install an up-to-date version via MacPorts or you can install MacVim and add an alias to your .profile
:
alias vim='/path/to/MacVim.app/Contents/MacOS/Vim'
to have the same vim in MacVim and Terminal.app.
Another difference is that many great colorschemes out there work out of the box in MacVim but look terrible in the Terminal.app which only supports 8 colors (+ highlights) but you can use iTerm — which can be set up to support 256 colors — instead of Terminal.
So… basically my advice is to just use both.
EDIT: I didn't try it but the latest version of Terminal.app (in 10.7) is supposed to support 256 colors. I'm still on 10.6.x at work so I'll still use iTerm2 for a while.
EDIT: An even better way to use MacVim's CLI executable in your shell is to move the mvim
script bundled with MacVim somewhere in your $PATH
and use this command:
$ mvim -v
EDIT: Yes, Terminal.app now supports 256 colors. So if you don't need iTerm2's advanced features you can safely use the default terminal emulator.
FYI, the list of operators (containing like and all others) is in code:
/vendor/laravel/framework/src/Illuminate/Database/Query/Builder.php
protected $operators = array(
'=', '<', '>', '<=', '>=', '<>', '!=',
'like', 'not like', 'between', 'ilike',
'&', '|', '^', '<<', '>>',
'rlike', 'regexp', 'not regexp',
);
disclaimer:
Joel Larson's answer is correct. Got my upvote.
I'm hoping this answer sheds more light on what's available via the Eloquent ORM (points people in the right direct). Whilst a link to documentation would be far better, that link has proven itself elusive.
The notation List<?>
means "a list of something (but I'm not saying what)". Since the code in test
works for any kind of object in the list, this works as a formal method parameter.
Using a type parameter (like in your point 3), requires that the type parameter be declared. The Java syntax for that is to put <T>
in front of the function. This is exactly analogous to declaring formal parameter names to a method before using the names in the method body.
Regarding List<Object>
not accepting a List<String>
, that makes sense because a String
is not Object
; it is a subclass of Object
. The fix is to declare public static void test(List<? extends Object> set) ...
. But then the extends Object
is redundant, because every class directly or indirectly extends Object
.
If you are using a webkit browser you can change the color of the caret by following the next CSS snippet. I'm not sure if It's possible to change the format with CSS.
input,
textarea {
font-size: 24px;
padding: 10px;
color: red;
text-shadow: 0px 0px 0px #000;
-webkit-text-fill-color: transparent;
}
input::-webkit-input-placeholder,
textarea::-webkit-input-placeholder {
color:
text-shadow: none;
-webkit-text-fill-color: initial;
}
Here is an example: http://jsfiddle.net/8k1k0awb/
The answer is right in the MYSQL manual itself.
"DELETE FROM `table_name` WHERE `time_col` < ADDDATE(NOW(), INTERVAL -1 HOUR)"
Here's what I found that worked for being able to get the deployed folder location of my clickonce application and that hasn't been mentioned anywhere I saw in my searches, for my similar, specific scenario:
Here is a visual of my use case:
I did not find any of the suggestions in this question or their comments to work in returning the folder that the clickonce application was deployed to (that I would then move relative to this folder to find the folder of interest). No other internet searching or related SO questions turned up an answer either.
All of the suggested properties either were failing due to the object (e.g. ActivationUri) being null, or were pointing to the local PC's cached installed app folder. Yes, I could gracefully handle null objects by a check for IsNetworkDeployed - that's not a problem - but surprisingly IsNetworkDeployed returns false even though I do in fact have a network deployed folder location for the clickonce application. This is because the application is running from the local, cached bits.
The solution is to look at:
AppDomain.CurrentDomain.BaseDirectory
when the application is being run within visual studio as I develop andSystem.Deployment.Application.ApplicationDeployment.CurrentDeployment.UpdateLocation
when it is executing normally.System.Deployment.Application.ApplicationDeployment.CurrentDeployment.UpdateLocation
correctly returns the network directory that my clickonce application is deployed to, in all cases. That is, when it is launched via:
Here's the code I use at application startup to get the path of the WorkAccounts folder. Getting the deployed application folder is simple by just not marching up to parent directories:
string directoryOfInterest = "";
if (System.Diagnostics.Debugger.IsAttached)
{
directoryOfInterest = Directory.GetParent(Directory.GetParent(Directory.GetParent(AppDomain.CurrentDomain.BaseDirectory).FullName).FullName).FullName;
}
else
{
try
{
string path = System.Deployment.Application.ApplicationDeployment.CurrentDeployment.UpdateLocation.ToString();
path = path.Replace("file:", "");
path = path.Replace("/", "\\");
directoryOfInterest = Directory.GetParent(Directory.GetParent(path).FullName).FullName;
}
catch (Exception ex)
{
directoryOfInterest = "Error getting update directory needed for relative base for finding WorkAccounts directory.\n" + ex.Message + "\n\nUpdate location directory is: " + System.Deployment.Application.ApplicationDeployment.CurrentDeployment.UpdateLocation.ToString();
}
}
I don't endorse this solution in any way, shape or form. But if you add a variable to the __builtin__
module, it will be accessible as if a global from any other module that includes __builtin__
-- which is all of them, by default.
a.py contains
print foo
b.py contains
import __builtin__
__builtin__.foo = 1
import a
The result is that "1" is printed.
Edit: The __builtin__
module is available as the local symbol __builtins__
-- that's the reason for the discrepancy between two of these answers. Also note that __builtin__
has been renamed to builtins
in python3.
The SaveFileDialog
control won't do any saving at all. All it does is providing you a convenient interface to actually display Windows' default file save dialog.
Set the property InitialDirectory
to the drive you'd like it to show some other default. Just think of other computers that might have a different layout. By default windows will save the directory used the last time and present it again.
That is handled outside the control. You'll have to check the dialog's results and then do the saving yourself (e.g. write a text or binary file).
Just as a quick example (there are alternative ways to do it).
savefile
is a control of type SaveFileDialog
SaveFileDialog savefile = new SaveFileDialog();
// set a default file name
savefile.FileName = "unknown.txt";
// set filters - this can be done in properties as well
savefile.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*";
if (savefile.ShowDialog() == DialogResult.OK)
{
using (StreamWriter sw = new StreamWriter(savefile.FileName))
sw.WriteLine ("Hello World!");
}
I came here looking for the answer to the same question. But I found a much better answer myself.
In the tables list, if you right-click on the table name there is a suite of CRUD script generation options in "Send to SQL Editor". You can select multiple tables and take the same approach too.
My version of MySQL Workbench: 5.2.37
ActiveRecord is clever enough to know that the parameter referred to by the ?
is a string, and so it encloses it in single quotes. You could as one post suggests use Ruby string interpolation to pad the string with the required %
symbols. However, this might expose you to SQL-injection (which is bad). I would suggest you use the SQL CONCAT()
function to prepare the string like so:
"name LIKE CONCAT('%',?,'%') OR postal_code LIKE CONCAT('%',?,'%')", search, search)
Rebase and Cherry-pick is the only way you can keep clean commit history. Avoid using merge and avoid creating merge conflict. If you are using gerrit set one project to Merge if necessary and one project to cherry-pick mode and try yourself.
I solved this in a somewhat different way. Here's what happened.
First, I popped on the wrong branch and got conflicts. The stash remained intact but the index was in conflict resolution, blocking many commands.
A simple git reset HEAD
aborted the conflict resolution and left the uncommitted (and UNWANTED) changes.
Several git co <filename>
reverted the index to the initial state. Finally, I switched branch with git co <branch-name>
and run a new git stash pop
, which resolved without conflicts.
loadXMLDoc JS function should return false, otherwise it will result in postback.
Compare to null is undefined, unless you use IS NULL.
So, when comparing 3 to NULL (query A), it returns undefined.
I.e. SELECT 'true' where 3 in (1,2,null) and SELECT 'true' where 3 not in (1,2,null)
will produce the same result, as NOT (UNDEFINED) is still undefined, but not TRUE
When your script is run by passing it as a command to the Python interpreter,
python myscript.py
all of the code that is at indentation level 0 gets executed. Functions and classes that are defined are, well, defined, but none of their code gets run. Unlike other languages, there's no main()
function that gets run automatically - the main()
function is implicitly all the code at the top level.
In this case, the top-level code is an if
block. __name__
is a built-in variable which evaluates to the name of the current module. However, if a module is being run directly (as in myscript.py
above), then __name__
instead is set to the string "__main__"
. Thus, you can test whether your script is being run directly or being imported by something else by testing
if __name__ == "__main__":
...
If your script is being imported into another module, its various function and class definitions will be imported and its top-level code will be executed, but the code in the then-body of the if
clause above won't get run as the condition is not met. As a basic example, consider the following two scripts:
# file one.py
def func():
print("func() in one.py")
print("top-level in one.py")
if __name__ == "__main__":
print("one.py is being run directly")
else:
print("one.py is being imported into another module")
# file two.py
import one
print("top-level in two.py")
one.func()
if __name__ == "__main__":
print("two.py is being run directly")
else:
print("two.py is being imported into another module")
Now, if you invoke the interpreter as
python one.py
The output will be
top-level in one.py
one.py is being run directly
If you run two.py
instead:
python two.py
You get
top-level in one.py
one.py is being imported into another module
top-level in two.py
func() in one.py
two.py is being run directly
Thus, when module one
gets loaded, its __name__
equals "one"
instead of "__main__"
.
The localStorage
can only store string content and you are trying to store a jQuery object since html(htmlString)
returns a jQuery object.
You need to set the string content instead of an object. And use the setItem
method to add data and getItem
to get data.
window.localStorage.setItem('content', 'Test');
$('#test').html(window.localStorage.getItem('content'));
You repository is bare, i.e. it does not have a working tree attached to it. You can clone it locally to create a working tree for it, or you could use one of several other options to tell Git where the working tree is, e.g. the --work-tree
option for single commands, or the GIT_WORK_TREE
environment variable. There is also the core.worktree
configuration option but it will not work in a bare repository (check the man page for what it does).
# git --work-tree=/path/to/work/tree checkout master
# GIT_WORK_TREE=/path/to/work/tree git status
0.0 is a double literal and this is not considered as absolute zero! No exception because it is considered that the double variable large enough to hold the values representing near infinity!
I found this post while trying to figure out what the exit status was for a script that was aborted due to a set -e
. The answer didn't appear obvious to me; hence this answer. Basically, set -e
aborts the execution of a command (e.g. a shell script) and returns the exit status code of the command that failed (i.e. the inner script, not the outer script).
For example, suppose I have the shell script outer-test.sh
:
#!/bin/sh
set -e
./inner-test.sh
exit 62;
The code for inner-test.sh
is:
#!/bin/sh
exit 26;
When I run outer-script.sh
from the command line, my outer script terminates with the exit code of the inner script:
$ ./outer-test.sh
$ echo $?
26
I Solved this problem by:
step 1: C:/user/rafiq/.m2/repository --> Delete this folder
Step 2: right click on your project-->maven-->update maven project-->check only clean project-->ok.
Step 3: right click on your project-->maven-->update maven project-->check only update project-->ok.
Problem Solved.
Here is an example using shell (bash
):
#!/bin/bash
# loop & print a folder recusively,
print_folder_recurse() {
for i in "$1"/*;do
if [ -d "$i" ];then
echo "dir: $i"
print_folder_recurse "$i"
elif [ -f "$i" ]; then
echo "file: $i"
fi
done
}
# try get path from param
path=""
if [ -d "$1" ]; then
path=$1;
else
path="/tmp"
fi
echo "base path: $path"
print_folder_recurse $path
I think that this happens when javascript debugging is enabled in visual studio and at the same time the chrome developer tools debugger is enabled. The problem arises because two different debuggers trying to debug the same process.
The following format should work:
$.ajax({
type: "POST",
url: "@Url.Action("refresh", "group")",
contentType: "application/json; charset=utf-8",
data: JSON.stringify({
myDate: '2011-04-02 17:15:45'
}),
success: function (result) {
//do something
},
error: function (req, status, error) {
//error
}
});
A facade exposes simplified functions that are mostly called and the implementation conceals the complexity that clients would otherwise have to deal with. In general the implementation uses multiple packages, classes and function there in. Well written facades make direct access of other classes rare. For example when I visit an ATM and withdraw some amount. The ATM hides whether it is going straight to the owned bank or is it going over a negotiated network for an external bank. The ATM acts like a facade consuming multiple devices and sub-systems that as a client I do not have to directly deal with.
Use show create table tbl_name
to view the foreign keys
You can use this syntax to drop a foreign key:
ALTER TABLE tbl_name DROP FOREIGN KEY fk_symbol
There's also more information here (see Frank Vanderhallen post): http://dev.mysql.com/doc/refman/5.5/en/innodb-foreign-key-constraints.html
(n & 1) will check if 'n' is odd or even, this is similar to (n%2).
In case 'n' is odd (n & 1) will return true/1;
Else it will return back false/0;
The '>>' in (n>>=1) is a bitwise operator called "Right shift", this operator will modify the value of 'n', the formula is:
(n >>= m) => (n = n>>m) => (n = n/2^m)
Go through GeeksforGeek's article on "Bitwise Operator's", recommended!
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.
import re
def email():
email = raw_input("enter the mail address::")
match = re.search(r'[\w.-]+@[\w.-]+.\w+', email)
if match:
print "valid email :::", match.group()
else:
print "not valid:::"
email()
I had the same error message. For me it was happening because I was trying to run the installer from the DVD rather than running the installer from Add/Remove programs.
SQL Server does not have literal true or false values. You'll need to use the 1=1
method (or similar) in the rare cases this is needed.
One option is to create your own named variables for true and false
DECLARE @TRUE bit
DECLARE @FALSE bit
SET @TRUE = 1
SET @FALSE = 0
select * from SomeTable where @TRUE = @TRUE
But these will only exist within the scope of the batch (you'll have to redeclare them in every batch in which you want to use them)
"Just because you can doesn't mean you should."
You can probably use async/await in LINQ expressions such that it will behave exactly as you want it to, but will any other developer reading your code still understand its behavior and intent?
(In particular: Should the async operations be run in parallel or are they intentionally sequential? Did the original developer even think about it?)
This is also shown clearly by the question, which seems to have been asked by a developer trying to understand someone else's code, without knowing its intent. To make sure this does not happen again, it may be best to rewrite the LINQ expression as a loop statement, if possible.
You can control the data returned from SQL database by ordering the data returned:
orderby [Name]
If you execute the SQL query from your application, order the data returned. For example, make a function that calls the procedure or executes the SQL and give it a parameter that gets the orderby criteria. Because if you ordered the data returned from database it will consume time but order it since it's executed as you say that you want it to be ordered not from the UI you want it to be ordered in the run time so order it when executing the SQL query.
the second subscript operator is invalid here. You passed a int * pointer into function, which is a 1-d array. So only one subscript operator can be used on it.
Solution : you can pass int ** pointer into funciton
To really get this clear, here's my for-beginners answer:
You inputed the arguments in the wrong order.
A keyword argument has this style:
nullable=True, unique=False
A fixed parameter should be defined: True, False, etc. A non-keyword argument is different:
name="Ricardo", fruit="chontaduro"
This syntax error asks you to first put name="Ricardo"
and all of its kind (non-keyword) before those like nullable=True.
Starting with Go 1.16, you can use the os.ReadDir function.
func ReadDir(name string) ([]DirEntry, error)
It reads a given directory and returns a DirEntry
slice that contains the directory entries sorted by filename.
It's an optimistic function, so that, when an error occurs while reading the directory entries, it tries to return you a slice with the filenames up to the point before the error.
package main
import (
"fmt"
"log"
"os"
)
func main() {
files, err := os.ReadDir(".")
if err != nil {
log.Fatal(err)
}
for _, file := range files {
fmt.Println(file.Name())
}
}
Go 1.16 (Q1 2021) will propose, with CL 243908 and CL 243914 , the ReadDir
function, based on the FS
interface:
// An FS provides access to a hierarchical file system.
//
// The FS interface is the minimum implementation required of the file system.
// A file system may implement additional interfaces,
// such as fsutil.ReadFileFS, to provide additional or optimized functionality.
// See io/fsutil for details.
type FS interface {
// Open opens the named file.
//
// When Open returns an error, it should be of type *PathError
// with the Op field set to "open", the Path field set to name,
// and the Err field describing the problem.
//
// Open should reject attempts to open names that do not satisfy
// ValidPath(name), returning a *PathError with Err set to
// ErrInvalid or ErrNotExist.
Open(name string) (File, error)
}
That allows for "os: add ReadDir
method for lightweight directory reading":
See commit a4ede9f:
// ReadDir reads the contents of the directory associated with the file f
// and returns a slice of DirEntry values in directory order.
// Subsequent calls on the same file will yield later DirEntry records in the directory.
//
// If n > 0, ReadDir returns at most n DirEntry records.
// In this case, if ReadDir returns an empty slice, it will return an error explaining why.
// At the end of a directory, the error is io.EOF.
//
// If n <= 0, ReadDir returns all the DirEntry records remaining in the directory.
// When it succeeds, it returns a nil error (not io.EOF).
func (f *File) ReadDir(n int) ([]DirEntry, error)
// A DirEntry is an entry read from a directory (using the ReadDir method).
type DirEntry interface {
// Name returns the name of the file (or subdirectory) described by the entry.
// This name is only the final element of the path, not the entire path.
// For example, Name would return "hello.go" not "/home/gopher/hello.go".
Name() string
// IsDir reports whether the entry describes a subdirectory.
IsDir() bool
// Type returns the type bits for the entry.
// The type bits are a subset of the usual FileMode bits, those returned by the FileMode.Type method.
Type() os.FileMode
// Info returns the FileInfo for the file or subdirectory described by the entry.
// The returned FileInfo may be from the time of the original directory read
// or from the time of the call to Info. If the file has been removed or renamed
// since the directory read, Info may return an error satisfying errors.Is(err, ErrNotExist).
// If the entry denotes a symbolic link, Info reports the information about the link itself,
// not the link's target.
Info() (FileInfo, error)
}
src/os/os_test.go#testReadDir()
illustrates its usage:
file, err := Open(dir)
if err != nil {
t.Fatalf("open %q failed: %v", dir, err)
}
defer file.Close()
s, err2 := file.ReadDir(-1)
if err2 != nil {
t.Fatalf("ReadDir %q failed: %v", dir, err2)
}
Ben Hoyt points out in the comments to Go 1.16 os.ReadDir
:
os.ReadDir(path string) ([]os.DirEntry, error)
, which you'll be able to call directly without theOpen
dance.
So you can probably shorten this to justos.ReadDir
, as that's the concrete function most people will call.
See commit 3d913a9 (Dec. 2020):
os
: addReadFile
,WriteFile
,CreateTemp
(wasTempFile
),MkdirTemp
(wasTempDir
) fromio/ioutil
io/ioutil
was a poorly defined collection of helpers.Proposal #40025 moved out the generic I/O helpers to io. This CL for proposal #42026 moves the OS-specific helpers to
os
, making the entireio/ioutil
package deprecated.
os.ReadDir
returns[]DirEntry
, in contrast toioutil.ReadDir
's[]FileInfo
.
(Providing a helper that returns[]DirEntry
is one of the primary motivations for this change.)
I faced same problem. And got the solution when I use this code to call context. I use Grid Layout. If you use another one you can change.
recyclerView.setLayoutManager(new GridLayoutManager(getActivity(),1));
if you have adapter to set. So you can follow this. Just call the getContext
adapter = new Adapter(getContext(), myModelList);
If you have Toast to show, use same thing above
Toast.makeText(getContext(), "Error in "+e, Toast.LENGTH_SHORT).show();
Hope this will work.
HappyCoding
What worked for me was,
chmod -R 0777 /opt/lampp/htdocs/
ssh -t 'command; bash -l'
will execute the command and then start up a login shell when it completes. For example:
ssh -t [email protected] 'cd /some/path; bash -l'
catch needs to return an observable.
.catch(e => { console.log(e); return Observable.of(e); })
if you'd like to stop the pipeline after a caught error, then do this:
.catch(e => { console.log(e); return Observable.of(null); }).filter(e => !!e)
this catch transforms the error into a null val and then filter doesn't let falsey values through. This will however, stop the pipeline for ANY falsey value, so if you think those might come through and you want them to, you'll need to be more explicit / creative.
edit:
better way of stopping the pipeline is to do
.catch(e => Observable.empty())
All major browsers now include native JSON encoding/decoding.
// To encode an object (This produces a string)
var json_str = JSON.stringify(myobject);
// To decode (This produces an object)
var obj = JSON.parse(json_str);
Note that only valid JSON data will be encoded. For example:
var obj = {'foo': 1, 'bar': (function (x) { return x; })}
JSON.stringify(obj) // --> "{\"foo\":1}"
Valid JSON types are: objects, strings, numbers, arrays, true
, false
, and null
.
Some JSON resources:
The answer here is very simple:
You're already containing it in double quotes, so there's no need to escape it with \
.
If you want to escape single quotes in a single quote string:
var string = 'this isn\'t a double quoted string';
var string = "this isn\"t a single quoted string";
// ^ ^ same types, hence we need to escape it with a backslash
or if you want to escape \'
, you can escape the bashslash to \\
and the quote to \'
like so:
var string = 'this isn\\\'t a double quoted string';
// vvvv
// \ ' (the escaped characters)
However, if you contain the string with a different quote type, you don't need to escape:
var string = 'this isn"t a double quoted string';
var string = "this isn't a single quoted string";
// ^ ^ different types, hence we don't need escaping
If you want to extract a raw-ish value from a HSSF cell, you can use something like this code fragment:
CellBase base = (CellBase) cell;
CellType cellType = cell.getCellType();
base.setCellType(CellType.STRING);
String result = cell.getStringCellValue();
base.setCellType(cellType);
At least for strings that are completely composed of digits (and automatically converted to numbers by Excel), this returns the original string (e.g. "12345"
) instead of a fractional value (e.g. "12345.0"
). Note that setCellType
is available in interface Cell
(as of v. 4.1) but deprecated and announced to be eliminated in v 5.x, whereas this method is still available in class CellBase
. Obviously, it would be nicer either to have getRawValue
in the Cell
interface or at least to be able use getStringCellValue
on non STRING cell types. Unfortunately, all replacements of setCellType
mentioned in the description won't cover this use case (maybe a member of the POI dev team reads this answer).
You should avoid using refs, you can do it with onChange
function.
On every change, update the state for the changed field.
Then you can easily check if that field is empty or whatever else you want.
You could do something as follows :
class Test extends React.Component {
constructor(props){
super(props);
this.state = {
fields: {},
errors: {}
}
}
handleValidation(){
let fields = this.state.fields;
let errors = {};
let formIsValid = true;
//Name
if(!fields["name"]){
formIsValid = false;
errors["name"] = "Cannot be empty";
}
if(typeof fields["name"] !== "undefined"){
if(!fields["name"].match(/^[a-zA-Z]+$/)){
formIsValid = false;
errors["name"] = "Only letters";
}
}
//Email
if(!fields["email"]){
formIsValid = false;
errors["email"] = "Cannot be empty";
}
if(typeof fields["email"] !== "undefined"){
let lastAtPos = fields["email"].lastIndexOf('@');
let lastDotPos = fields["email"].lastIndexOf('.');
if (!(lastAtPos < lastDotPos && lastAtPos > 0 && fields["email"].indexOf('@@') == -1 && lastDotPos > 2 && (fields["email"].length - lastDotPos) > 2)) {
formIsValid = false;
errors["email"] = "Email is not valid";
}
}
this.setState({errors: errors});
return formIsValid;
}
contactSubmit(e){
e.preventDefault();
if(this.handleValidation()){
alert("Form submitted");
}else{
alert("Form has errors.")
}
}
handleChange(field, e){
let fields = this.state.fields;
fields[field] = e.target.value;
this.setState({fields});
}
render(){
return (
<div>
<form name="contactform" className="contactform" onSubmit= {this.contactSubmit.bind(this)}>
<div className="col-md-6">
<fieldset>
<input ref="name" type="text" size="30" placeholder="Name" onChange={this.handleChange.bind(this, "name")} value={this.state.fields["name"]}/>
<span style={{color: "red"}}>{this.state.errors["name"]}</span>
<br/>
<input refs="email" type="text" size="30" placeholder="Email" onChange={this.handleChange.bind(this, "email")} value={this.state.fields["email"]}/>
<span style={{color: "red"}}>{this.state.errors["email"]}</span>
<br/>
<input refs="phone" type="text" size="30" placeholder="Phone" onChange={this.handleChange.bind(this, "phone")} value={this.state.fields["phone"]}/>
<br/>
<input refs="address" type="text" size="30" placeholder="Address" onChange={this.handleChange.bind(this, "address")} value={this.state.fields["address"]}/>
<br/>
</fieldset>
</div>
</form>
</div>
)
}
}
React.render(<Test />, document.getElementById('container'));
In this example I did the validation only for email and name, but you have an idea how to do it. For the rest you can do it self.
There is maybe a better way, but you will get the idea.
Hope this helps.
The for
attribute associates the label with a control element, as defined in the description of label
in the HTML 4.01 spec. This implies, among other things, that when the label
element receives focus (e.g. by being clicked on), it passes the focus on to its associated control. The association between a label and a control may also be used by speech-based user agents, which may give the user a way to ask what the associated label is, when dealing with a control. (The association may not be as obvious as in visual rendering.)
In the first example in the question (without the for
), the use of label
markup has no logical or functional implication – it’s useless, unless you do something with it in CSS or JavaScript.
HTML specifications do not make it mandatory to associate labels with controls, but Web Content Accessibility Guidelines (WCAG) 2.0 do. This is described in the technical document H44: Using label elements to associate text labels with form controls, which also explains that the implicit association (by nesting e.g. input
inside label
) is not as widely supported as the explicit association via for
and id
attributes,
In Galileo and Helios Provisioning Platform were introduced, and non-update-site plugins now should be placed in "dropins" subfolder ("eclipse/dropins/plugin_name/features", "eclipse/dropins/plugin_name/plugins") instead of Eclipse's folder ("eclipse/features" and "eclipse/plugins").
Also for programming needs the best Eclipse is the latest Eclipse. It has too many bugs for now, and all the Eclipse team is now doing is fixing the bugs. There are very few interface enhancements since Europa. IMHO.
git.exe is common for any git based applications like GitHub, Bitbucket etc. Some times it is possible that you have already installed another git based application so git.exe will be present in the bin folder of that application.
For example if you installed bitbucket before github in your PC, you will find git.exe in C:\Users\{username}\AppData\Local\Atlassian\SourceTree\git_local\bin
instead of C:\Users\{username}\AppData\Local\GitHub\PortableGit.....\bin
.
In order to avoid infinite recursion in this method, its implementation should always call the base class method with the same name to access any attributes it needs, for example,
object.__getattribute__(self, name)
.
Meaning:
def __getattribute__(self,name):
...
return self.__dict__[name]
You're calling for an attribute called __dict__
. Because it's an attribute, __getattribute__
gets called in search for __dict__
which calls __getattribute__
which calls ... yada yada yada
return object.__getattribute__(self, name)
Using the base classes __getattribute__
helps finding the real attribute.
Just use the Cells function and loop thru columns. Cells(Row,Column)
The error comes when you try to call sum(x)
and x
is a factor.
What that means is that one of your columns, though they look like numbers are actually factors (what you are seeing is the text representation)
simple fix, convert to numeric. However, it needs an intermeidate step of converting to character first. Use the following:
family[, 1] <- as.numeric(as.character( family[, 1] ))
family[, 3] <- as.numeric(as.character( family[, 3] ))
For a detailed explanation of why the intermediate as.character
step is needed, take a look at this question: How to convert a factor to integer\numeric without loss of information?
You can also use:
round(mod(rand.*max,max-1))+min
select (case when locate('(', LocationName) = 0
then
horse_name
else
left(LocationName, locate('(', LocationName) - 1)
end) as Country
from tblcountry;
First check what your php error reports tells you. And define application wide root at the biginning of your index.php
define ('APPROOT', realpath(dirname(__FILE__)));
and then use it to include you files
include(APPROOT.'templates/header.php');
and so on... And to you have you .htaccess rewrite rule?
Probably the simplest way is to use the InputBox
method of the Microsoft.VisualBasic.Interaction
class:
[void][Reflection.Assembly]::LoadWithPartialName('Microsoft.VisualBasic')
$title = 'Demographics'
$msg = 'Enter your demographics:'
$text = [Microsoft.VisualBasic.Interaction]::InputBox($msg, $title)
There is a similar question and answer at: Start Hadoop 50075 Port is not resolved
Take a look at your core-site.xml file to determine which port it is set to. If 0, it will randomly pick a port, so be sure to set one.
recently i've created this code for my client, i'm using array for cookie in this code, actually this code gets recently viewed pages by user using cookies, hope it helps you...!
function curPageURL() { // get url
return 'http' . ((
!empty($_SERVER['HTTPS']) &&
$_SERVER['HTTPS'] !== 'off' ||
$_SERVER['SERVER_PORT'] == 443
) ? 's' : '') . '://' . $_SERVER['SERVER_NAME'] . (
$_SERVER['SERVER_PORT'] == 80 ? '' : $_SERVER['SERVER_PORT']
) . $_SERVER['REQUEST_URI'];
}
$currentPage = curPageURL(); // call function
$counter = $_COOKIE['_counter']; // set counter variable
if(!$_COOKIE['_PAGES']){ // if _Pages cookie
$default = 1; // set default value to 1
setcookie("_counter",$default,time()+7200); // set counter cookie
setcookie("_PAGES[$default]",$currentPage, time()+3600); // set cookie
}
else{ // if ! _Pages cookie
$default = $counter+1; // set default value to +1
setcookie("_counter",$default,time()+7200); // set counter cookie
}
if(@in_array($currentPage, @$_COOKIE['_PAGES'])){ // if same url found
}
else{ // if new url found
setcookie("_PAGES[$default]",$currentPage, time()+3600); // set cookie
}
if($_COOKIE['_PAGES']){
foreach ($_COOKIE['_PAGES'] as $value){
echo "<a href='{$value}'>{$value}</a>";
}
}
Since WordPress already uses jQuery you can try something like this:
var POST=<?php echo json_encode($_POST); ?>;
for(k in POST){
$("#"+k).val(POST[k]);
}
You can also not draw the header or footer at all by setting sDom
: http://datatables.net/usage/options#sDom
'sDom': 't'
will display JUST the table, no headers or footers or anything.
It's discussed some here: http://www.datatables.net/forums/discussion/2722/how-to-hide-empty-header-and-footer/p1