Here is a relatively simple recursive solution. I think a breadth-first search is appropriate here. This will return the first element matching the class that is found.
function getDescendantWithClass(element, clName) {
var children = element.childNodes;
for (var i = 0; i < children.length; i++) {
if (children[i].className &&
children[i].className.split(' ').indexOf(clName) >= 0) {
return children[i];
}
}
for (var i = 0; i < children.length; i++) {
var match = getDescendantWithClass(children[i], clName);
if (match !== null) {
return match;
}
}
return null;
}
You can use PdfBox from Apache which is simple to use and has good performance.
Here is an example of extracting text from a PDF file (you can read more here) :
import java.io.*;
import org.apache.pdfbox.pdmodel.*;
import org.apache.pdfbox.util.*;
public class PDFTest {
public static void main(String[] args){
PDDocument pd;
BufferedWriter wr;
try {
File input = new File("C:\\Invoice.pdf"); // The PDF file from where you would like to extract
File output = new File("C:\\SampleText.txt"); // The text file where you are going to store the extracted data
pd = PDDocument.load(input);
System.out.println(pd.getNumberOfPages());
System.out.println(pd.isEncrypted());
pd.save("CopyOfInvoice.pdf"); // Creates a copy called "CopyOfInvoice.pdf"
PDFTextStripper stripper = new PDFTextStripper();
wr = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(output)));
stripper.writeText(pd, wr);
if (pd != null) {
pd.close();
}
// I use close() to flush the stream.
wr.close();
} catch (Exception e){
e.printStackTrace();
}
}
}
UPDATE:
You can get the text using PDFTextStripper:
PDFTextStripper reader = new PDFTextStripper();
String pageText = reader.getText(pd); // PDDocument object created
I use a generic query I call "dump" (why? I don't know) that looks like this:
SET NEWPAGE NONE
SET PAGESIZE 0
SET SPACE 0
SET LINESIZE 16000
SET ECHO OFF
SET FEEDBACK OFF
SET VERIFY OFF
SET HEADING OFF
SET TERMOUT OFF
SET TRIMOUT ON
SET TRIMSPOOL ON
SET COLSEP |
spool &1..txt
@@&1
spool off
exit
I then call SQL*Plus passing the actual SQL script I want to run as an argument:
sqlplus -S user/password@database @dump.sql my_real_query.sql
The result is written to a file
my_real_query.sql.txt
.
To get the path and the name
System.Diagnostics.Process.GetCurrentProcess().MainModule.FileName
Although the answer set is complete, I need to add another missing one.
for i in *_h.png;
do name=`echo "$i" | cut -d'_' -f1`
echo "Executing of name $name"
mv "$i" "${name}_half.png"
done
var cur_value = $('option:selected',this).text();
Brighams answer uses literal regexp
.
Solution with a Regex object.
var regex = new RegExp('\n', 'g');
text = text.replace(regex, '<br />');
TRY IT HERE : JSFiddle Working Example
Connect to the database with the "system" user, and execute the following command:
show parameter service_name
the easiest way is to change version in every pom.xml to arbitrary version. then check that dependency management to use the correct version of the module used in this module! for example, if u want increase versioning for a tow module project u must do like flowing:
in childe module :
<parent>
<artifactId>A-application</artifactId>
<groupId>com.A</groupId>
<version>new-version</version>
</parent>
and in parent module :
<groupId>com.A</groupId>
<artifactId>A-application</artifactId>
<version>new-version</version>
.class {_x000D_
display: none;_x000D_
}_x000D_
@media (min-width:400px) and (max-width:900px) {_x000D_
.class {_x000D_
display: block; /* just an example display property */_x000D_
}_x000D_
}
_x000D_
WITH PATHLIB MODULE (UPDATED ANSWER)
One should consider using pathlib for new development. It is in the stdlib for Python3.4, but available on PyPI for earlier versions. This library provides a more object-orented method to manipulate paths <opinion>
and is much easier read and program with </opinion>
.
>>> import pathlib
>>> existGDBPath = pathlib.Path(r'T:\Data\DBDesign\DBDesign_93_v141b.mdb')
>>> wkspFldr = existGDBPath.parent
>>> print wkspFldr
Path('T:\Data\DBDesign')
WITH OS MODULE
Use the os.path module:
>>> import os
>>> existGDBPath = r'T:\Data\DBDesign\DBDesign_93_v141b.mdb'
>>> wkspFldr = os.path.dirname(existGDBPath)
>>> print wkspFldr
'T:\Data\DBDesign'
You can go ahead and assume that if you need to do some sort of filename manipulation it's already been implemented in os.path
. If not, you'll still probably need to use this module as the building block.
function readFile() {_x000D_
_x000D_
if (this.files && this.files[0]) {_x000D_
_x000D_
var FR= new FileReader();_x000D_
_x000D_
FR.addEventListener("load", function(e) {_x000D_
document.getElementById("img").src = e.target.result;_x000D_
document.getElementById("b64").innerHTML = e.target.result;_x000D_
}); _x000D_
_x000D_
FR.readAsDataURL( this.files[0] );_x000D_
}_x000D_
_x000D_
}_x000D_
_x000D_
document.getElementById("inp").addEventListener("change", readFile);
_x000D_
<input id="inp" type='file'>_x000D_
<p id="b64"></p>_x000D_
<img id="img" height="150">
_x000D_
(P.S: A base64 encoded image (String) 4/3 the size of the original image data)
Check this answer for multiple images upload.
Browser support: http://caniuse.com/#search=file%20api
More info here: https://developer.mozilla.org/en-US/docs/Web/API/FileReader
This might be more desirable, that is use float instead
SELECT fullName, CAST(totalBal as float) totalBal FROM client_info ORDER BY totalBal DESC
If you don't mind the commas and the brackets you can simply use:
System.out.println(Arrays.deepToString(twoDm).replace("], ", "]\n"));
HTML
<div class='square-box'>
<div class='square-content'>
<h3>test</h3>
</div>
</div>
CSS
.square-box{
position: relative;
width: 50%;
overflow: hidden;
background: #4679BD;
}
.square-box:before{
content: "";
display: block;
padding-top: 100%;
}
.square-content{
position: absolute;
top: 0;
left: 0;
bottom: 0;
right: 0;
color: white;
text-align: center;
}
How about putting the checkbox
into the label
, making the label automatically "click sensitive" for the check box, and giving the checkbox a onchange
event?
<label ..... ><input type="checkbox" onchange="toggleCheckbox(this)" .....>
function toggleCheckbox(element)
{
element.checked = !element.checked;
}
This will additionally catch users using a keyboard to toggle the check box, something onclick
would not.
You can't declare default values for the parameters like C# (I believe) lets you, but you could simply just create an overload.
public int doSomething(int arg1, int arg2) {
//some logic here
return 0;
}
//overload supplies default values of 1 and 2
public int doSomething() {
return doSomething(1, 2);
}
If you are going to do something like this please do everyone else who works with your code a favor and make sure you mention in Javadoc comments what the default values you are using are!
The latter is preferred, because it will handle subclasses properly. In fact, your example can be written even more easily because isinstance()
's second parameter may be a tuple:
if isinstance(b, (str, unicode)):
do_something_else()
or, using the basestring
abstract class:
if isinstance(b, basestring):
do_something_else()
First, the class << foo
syntax opens up foo
's singleton class (eigenclass). This allows you to specialise the behaviour of methods called on that specific object.
a = 'foo'
class << a
def inspect
'"bar"'
end
end
a.inspect # => "bar"
a = 'foo' # new object, new singleton class
a.inspect # => "foo"
Now, to answer the question: class << self
opens up self
's singleton class, so that methods can be redefined for the current self
object (which inside a class or module body is the class or module itself). Usually, this is used to define class/module ("static") methods:
class String
class << self
def value_of obj
obj.to_s
end
end
end
String.value_of 42 # => "42"
This can also be written as a shorthand:
class String
def self.value_of obj
obj.to_s
end
end
Or even shorter:
def String.value_of obj
obj.to_s
end
When inside a function definition, self
refers to the object the function is being called with. In this case, class << self
opens the singleton class for that object; one use of that is to implement a poor man's state machine:
class StateMachineExample
def process obj
process_hook obj
end
private
def process_state_1 obj
# ...
class << self
alias process_hook process_state_2
end
end
def process_state_2 obj
# ...
class << self
alias process_hook process_state_1
end
end
# Set up initial state
alias process_hook process_state_1
end
So, in the example above, each instance of StateMachineExample
has process_hook
aliased to process_state_1
, but note how in the latter, it can redefine process_hook
(for self
only, not affecting other StateMachineExample
instances) to process_state_2
. So, each time a caller calls the process
method (which calls the redefinable process_hook
), the behaviour changes depending on what state it's in.
Probably the best cross browser solution for pdf display on web pages is to use the Mozilla PDF.js project code, it can be run as a node.js service and used as follows
<iframe style="width:100%;height:500px" src="http://www.mysite.co.uk/libs/pdfjs/web/viewer.html?file="http://www.mysite.co.uk/mypdf.pdf"></iframe>
A tutorial on how to use pdf.js can be found at this ejectamenta blog article
listA.retainAll(listB);
// listA now contains only the elements which are also contained in listB.
If you want to avoid that changes are being affected in listA
, then you need to create a new one.
List<Integer> common = new ArrayList<Integer>(listA);
common.retainAll(listB);
// common now contains only the elements which are contained in listA and listB.
We can change the item by value, here is the trick:
radio1.ClearSelection();
radio1.Items.FindByValue("1").Selected = true;// 1 is the value of option2
Override annotation is used to take advantage of the compiler, for checking whether you actually are overriding a method from parent class. It is used to notify if you make any mistake like mistake of misspelling a method name, mistake of not correctly matching the parameters
Look into the MemoryStream
class.
The code you have posted doesn't include a call to mysql_fetch_array()
. However, what is most likely going wrong is that you are issuing a query that returns an error message, in which case the return value from the query function is false
, and attempting to call mysql_fetch_array()
on it doesn't work (because boolean false
is not a mysql result object).
No, you can't.
There's no reason why you would need to. This is a one-time operation and so takes only an additional second or two to actually type and execute.
If you're adding columns in your web application this is more indicative of a flaw in your data-model as you shouldn't need to be doing it.
In response to your comment that a comment is a column attribute; it may seem so but behind the scenes Oracle stores this as an attribute of an object.
SQL> desc sys.com$
Name Null? Type
----------------------------------------- -------- ----------------------------
OBJ# NOT NULL NUMBER
COL# NUMBER
COMMENT$ VARCHAR2(4000)
SQL>
The column is optional and sys.col$
does not contain comment information.
I assume, I have no knowledge, that this was done in order to only have one system of dealing with comments rather than multiple.
I had this same problem and discovered (via this answer to a similar question) that the problem was that I didn't properly indent the docstring properly. Unfortunately IDLE doesn't give useful feedback here, but once I fixed the docstring indentation, the problem went away.
Specifically --- bad code that generates indentation errors:
def my_function(args):
"Here is my docstring"
....
Good code that avoids indentation errors:
def my_function(args):
"Here is my docstring"
....
Note: I'm not saying this is the problem, but that it might be, because in my case, it was!
Also try to dos2unix
the shell script, because sometimes it has Windows line endings and the shell does not recognize it.
$ dos2unix MigrateNshell.sh
This helps sometimes.
in your code add:
System.getProperty("WSNSHELL_HOME")
Modify or add value property from maven command:
mvn clean test -DargLine=-DWSNSHELL_HOME=yourvalue
If you want to run it in Eclipse, add VM arguments in your Debug/Run configurations
-DWSNSHELL_HOME=yourvalue
you don't need to modify the POM
The docs explicitly says that java.sql.Date
will throw:
IllegalArgumentException
- if the date given is not in the JDBC date escape format (yyyy-[m]m-[d]d
)
Also you shouldn't need to convert a date to a String
then to a sql.date
, this seems superfluous (and bug-prone!). Instead you could:
java.sql.Date sqlDate := new java.sql.Date(now.getTime());
prs.setDate(2, sqlDate);
prs.setDate(3, sqlDate);
You can convert the int
back to an enumeration member with a simple cast, and then call ToString()
:
int value = GetValueFromDb();
var enumDisplayStatus = (EnumDisplayStatus)value;
string stringValue = enumDisplayStatus.ToString();
To remove pods from a project completely you need to install two thing first...those are follows(Assuming you have already cocoa-pods installed in your system.)...
Installation
Cocoapods-Deintegrate Plugin
Use this following command on your terminal to install it.
sudo gem install cocoapods-deintegrate
Cocoapods-Clean Plugin
Use this following command on your terminal to install it.
sudo gem install cocoapods-clean
Usage
First of all goto your project folder by using the as usual command like..
cd (path of the project) //Remove the braces after cd
Now use those two plugins to remove it completely as follows..
Cocoapods-Deintegrate Plugin
Use this following command on your terminal to deintegrate the pods from your project first.
pod deintegrate
Cocoapods-Clean Plugin
After deintegration of pod from your project use this following command on your terminal to clean it completely.
pod clean
After completing the above tasks there should be the Podfile still remaining on your project directory..Just delete that manually or use this following command on the terminal..
rm Podfile
Thats it...Now you have your project free from pods...Cleaned.
Removing Cocoapods from the system.
Any way try to use the following command on your terminal to uninstall/remove the coca-pods from your system.
sudo gem uninstall cocoapods
It will remove the coca-pods automatically.
Thanks. Hope this helped.
I am assuming you know the length of the part before the _
and after the underscore, as well as the extension. If you don't it might be more complex than a simple substring.
cd C:\path\to\the\files
for /f %%a IN ('dir /b *.jpg') do (
set p=%a:~0,3%
set q=%a:~4,4%
set b=%p_%q.jpg
ren %a %b
)
I just came up with this script, and I did not test it. Check out this and that for more info.
IF you want to assume you don't know the positions of the _
and the lengths and the extension, I think you could do something with for loops to check the index of the _
, then the last index of the .
, wrap it in a goto
thing and make it work. If you're willing to go through that trouble, I'd suggest you use WindowsPowerShell (or Cygwin) at least (for your own sake) or install a more advanced scripting language (think Python/Perl) you'll get more support either way.
It's checking the return value ($?
) of grep
. In this case it's comparing it to 0 (success).
Usually when you see something like this (checking the return value of grep) it's checking to see whether the particular string was detected. Although the redirect to /dev/null
isn't necessary, the same thing can be accomplished using -q
.
You could use toPrecision() and toFixed() methods of Number type. Check this link How can I format numbers as money in JavaScript?
width
and height
are used when going the css route.
<!DOCTYPE html>
<html>
<head>
<title>Setting Width and Height on Textareas</title>
<style>
.comments { width: 300px; height: 75px }
</style>
</head>
<body>
<textarea class="comments"></textarea>
</body>
</html>
map.forEach((key, value) -> System.out.println(key + " " + value));
Using java 8 features
Use this class to get the URL works.
class VirtualDirectory
{
var $protocol;
var $site;
var $thisfile;
var $real_directories;
var $num_of_real_directories;
var $virtual_directories = array();
var $num_of_virtual_directories = array();
var $baseURL;
var $thisURL;
function VirtualDirectory()
{
$this->protocol = $_SERVER['HTTPS'] == 'on' ? 'https' : 'http';
$this->site = $this->protocol . '://' . $_SERVER['HTTP_HOST'];
$this->thisfile = basename($_SERVER['SCRIPT_FILENAME']);
$this->real_directories = $this->cleanUp(explode("/", str_replace($this->thisfile, "", $_SERVER['PHP_SELF'])));
$this->num_of_real_directories = count($this->real_directories);
$this->virtual_directories = array_diff($this->cleanUp(explode("/", str_replace($this->thisfile, "", $_SERVER['REQUEST_URI']))),$this->real_directories);
$this->num_of_virtual_directories = count($this->virtual_directories);
$this->baseURL = $this->site . "/" . implode("/", $this->real_directories) . "/";
$this->thisURL = $this->baseURL . implode("/", $this->virtual_directories) . "/";
}
function cleanUp($array)
{
$cleaned_array = array();
foreach($array as $key => $value)
{
$qpos = strpos($value, "?");
if($qpos !== false)
{
break;
}
if($key != "" && $value != "")
{
$cleaned_array[] = $value;
}
}
return $cleaned_array;
}
}
$virdir = new VirtualDirectory();
echo $virdir->thisURL;
Another possibility for this warning (and, most likely, problems with app behavior) is that the original author of the app relied on session.auto_start
being on (defaults to off)
If you don't want to mess with the code and just need it to work, you can always change php configuration and restart php-fpm (if this is a web app):
/etc/php.d/my-new-file.ini :
session.auto_start = 1
(This is correct for CentOS 8, adjust for your OS/packaging)
I suspect you can adjust your approach a little and use something along the lines of the example here:
https://www.typescriptlang.org/docs/handbook/advanced-types.html#user-defined-type-guards
function isFish(pet: Fish | Bird): pet is Fish {
return (pet as Fish).swim !== undefined;
}
Try this:
Try it out in JSFiddle (iframes don't appear to work in StackOverflow's preview)
You can see the code here, but it won't work due to what are probably security limitations in StackOverflow's renderer.
const printButton = document.getElementById('print-button');
printButton.addEventListener('click', event => {
// build the new HTML page
const content = document.getElementById('name-card').innerHTML;
const printHtml = `<html>
<head>
<meta charset="utf-8">
<title>Name Card</title>
</head>
<body>${content}</body>
</html>`;
// get the iframe
let iFrame = document.getElementById('print-iframe');
// set the iFrame contents and print
iFrame.contentDocument.body.innerHTML = printHtml;
iFrame.focus();
iFrame.contentWindow.print();
});
_x000D_
<h1>Print your name badge</h1>
<div id="name-card" class="card">
<p>Hello my name is</p>
<h2>Max Powers</h2>
</div>
<p>You will be required to wear your name badge at all times</p>
<a id="print-button" class="btn btn-primary">Print</a>
<iframe id="print-iframe" width="0" height="0"></iframe>
_x000D_
This is basically the same answer provided by Evert, but extended to show-off
some cool options of fill_between
from matplotlib import pyplot as pl
import numpy as np
pl.clf()
pl.hold(1)
x = np.linspace(0, 30, 100)
y = np.sin(x) * 0.5
pl.plot(x, y, '-k')
x = np.linspace(0, 30, 30)
y = np.sin(x/6*np.pi)
error = np.random.normal(0.1, 0.02, size=y.shape) +.1
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#CC4F1B')
pl.fill_between(x, y-error, y+error,
alpha=0.5, edgecolor='#CC4F1B', facecolor='#FF9848')
y = np.cos(x/6*np.pi)
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#1B2ACC')
pl.fill_between(x, y-error, y+error,
alpha=0.2, edgecolor='#1B2ACC', facecolor='#089FFF',
linewidth=4, linestyle='dashdot', antialiased=True)
y = np.cos(x/6*np.pi) + np.sin(x/3*np.pi)
error = np.random.rand(len(y)) * 0.5
y += np.random.normal(0, 0.1, size=y.shape)
pl.plot(x, y, 'k', color='#3F7F4C')
pl.fill_between(x, y-error, y+error,
alpha=1, edgecolor='#3F7F4C', facecolor='#7EFF99',
linewidth=0)
pl.show()
To loop through an object array or just array in javascript, you can do the following:
var cars = [{name: 'Audi'}, {name: 'BMW'}, {name: 'Ferrari'}, {name: 'Mercedes'}, {name: 'Maserati'}];
for(var i = 0; i < cars.length; i++) {
console.log(cars[i].name);
}
There is also the forEach() function, which is more "javascript-ish" and also less code but more complicated for its syntax:
cars.forEach(function (car) {
console.log(car.name);
});
And both of them are outputting the following:
// Audi
// BMW
// Ferrari
// Mercedes
// Maserati
In Angular 4.0 if..else
syntax is quite similar to conditional operators in Java.
In Java you use to "condition?stmnt1:stmnt2"
.
In Angular 4.0 you use *ngIf="condition;then stmnt1 else stmnt2"
.
Because %
is only defined for integer types. That's the modulus operator.
5.6.2 of the standard:
The operands of * and / shall have arithmetic or enumeration type; the operands of % shall have integral or enumeration type. [...]
As Oli pointed out, you can use fmod()
. Don't forget to include math.h
.
The major difference between the for and foreach loop in c# we understand by its working:
The for loop:
The foreach loop:
In the case of the foreach loop the variable of the loop while be same as the type of values under the array.
The Foreach statement repeats a group of embedded statements for each element in an array or an object collection.
In foreach loop, You do not need to specify the loop bounds minimum or maximum.---> here we can say that this is the advantage of the for each loop.
Just want to mention that pdub's GOTO solution is not fully correct in case :comment label appear in multiple times. I modify the code from this question as the example.
@ECHO OFF
SET FLAG=1
IF [%FLAG%]==[1] (
ECHO IN THE FIRST IF...
GOTO comment
ECHO "COMMENT PART 1"
:comment
ECHO HERE AT TD_NEXT IN THE FIRST BLOCK
)
IF [%FLAG%]==[1] (
ECHO IN THE SECOND IF...
GOTO comment
ECHO "COMMENT PART"
:comment
ECHO HERE AT TD_NEXT IN THE SECOND BLOCK
)
The output will be
IN THE FIRST IF...
HERE AT TD_NEXT IN THE SECOND BLOCK
The command ECHO HERE AT TD_NEXT IN THE FIRST BLOCK is skipped.
Use format
with no parameters:
var date = moment();
date.format(); // "2014-09-08T08:02:17-05:00"
I also had a requirement something similar to it. I wanted to have a container in the center of the screen and inside the container there are many views. Following is the xml layout code. Here i'm using nested constraint layout to create container in the center of the screen.
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/gradient_background"
tools:context=".activities.AppInfoActivity">
<ImageView
android:id="@+id/ivClose"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:src="@drawable/ic_round_close_24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="300dp"
android:layout_height="300dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.5">
<ImageView
android:id="@+id/ivAppIcon"
android:layout_width="100dp"
android:layout_height="100dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="@drawable/dead" />
<TextView
android:id="@+id/tvAppName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Birds Shooter Plane"
android:textAlignment="center"
android:textSize="30sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/ivAppIcon" />
<TextView
android:id="@+id/tvAppVersion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Version : 1.0"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvAppName" />
<TextView
android:id="@+id/tvDevelopedBy"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="Developed by"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvAppVersion" />
<TextView
android:id="@+id/tvDevelopedName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="K Pradeep Kumar Reddy"
android:textAlignment="center"
android:textSize="14sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvDevelopedBy" />
<TextView
android:id="@+id/tvContact"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="Contact : [email protected]"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvDevelopedName" />
<TextView
android:id="@+id/tvCheckForUpdate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/check_for_update"
android:textAlignment="center"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvContact" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
Here is the screenshot of the layout
Other solution is to remove the nested constraint layout and add constraint_vertical_bias = 0.5 attribute to the top element in the center of layout. I think this is called as chaining of views.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/gradient_background"
tools:context=".activities.AppInfoActivity">
<ImageView
android:id="@+id/ivClose"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_marginStart="20dp"
android:layout_marginTop="20dp"
android:src="@drawable/ic_round_close_24"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ImageView
android:id="@+id/ivAppIcon"
android:layout_width="100dp"
android:layout_height="100dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintVertical_bias="0.5"
app:srcCompat="@drawable/dead" />
<TextView
android:id="@+id/tvAppName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/app_display_name"
android:textAlignment="center"
android:textSize="30sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/ivAppIcon" />
<TextView
android:id="@+id/tvAppVersion"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/version"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvAppName" />
<TextView
android:id="@+id/tvDevelopedBy"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/developed_by"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvAppVersion" />
<TextView
android:id="@+id/tvDevelopedName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="@string/developer_name"
android:textAlignment="center"
android:textSize="14sp"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvDevelopedBy" />
<TextView
android:id="@+id/tvContact"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="5dp"
android:text="@string/developer_email"
android:textAlignment="center"
android:textSize="12sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvDevelopedName" />
<TextView
android:id="@+id/tvCheckForUpdate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="25dp"
android:text="@string/check_for_update"
android:textAlignment="center"
android:textSize="14sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintHorizontal_bias="0.5"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="@+id/tvContact" />
</androidx.constraintlayout.widget.ConstraintLayout>
###### Use paramiko to connect to LINUX platform############
import paramiko
ip='server ip'
port=22
username='username'
password='password'
ssh=paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(ip,port,username,password)
--------Connection Established-----------------------------
######To run shell commands on remote connection###########
import paramiko
ip='server ip'
port=22
username='username'
password='password'
ssh=paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect(ip,port,username,password)
stdin,stdout,stderr=ssh.exec_command(cmd)
outlines=stdout.readlines()
resp=''.join(outlines)
print(resp) # Output
You will have to submit this data to the server somehow. I'm assuming that you don't want to do a full page reload every time a user clicks a link, so you'll have to user XHR (AJAX). If you are not using jQuery (or some other JS library) you can read this tutorial on how to do the XHR request "by hand".
I give a supplementary answer based on @Frouo. I think his answer is the most beautiful way. Becuase it's a common control we can reuse.
private var kAssociationKeyMaxLength: Int = 0
extension UITextField {
@IBInspectable var maxLength: Int {
get {
if let length = objc_getAssociatedObject(self, &kAssociationKeyMaxLength) as? Int {
return length
} else {
return Int.max
}
}
set {
objc_setAssociatedObject(self, &kAssociationKeyMaxLength, newValue, .OBJC_ASSOCIATION_RETAIN)
self.addTarget(self, action: #selector(checkMaxLength), for: .editingChanged)
}
}
func checkMaxLength(textField: UITextField) {
guard !self.isInputMethod(), let prospectiveText = self.text,
prospectiveText.count > maxLength
else {
return
}
let selection = selectedTextRange
let maxCharIndex = prospectiveText.index(prospectiveText.startIndex, offsetBy: maxLength)
text = prospectiveText.substring(to: maxCharIndex)
selectedTextRange = selection
}
//The method is used to cancel the check when use Chinese Pinyin input method.
//Becuase the alphabet also appears in the textfield when inputting, we should cancel the check.
func isInputMethod() -> Bool {
if let positionRange = self.markedTextRange {
if let _ = self.position(from: positionRange.start, offset: 0) {
return true
}
}
return false
}
}
you should use position:fixed
to make z-index
values to apply to your div
Standard (https://tools.ietf.org/html/rfc6750) says you can use:
So it's possible to pass many Bearer Token with URI, but doing this is discouraged (see section 5 in the standard).
if you getting this type of error so I suggest you used to stored proc data as usual list then binding the other controls because I also get this error so I solved it like this ex:-
repeater.DataSource = data.SPBinsReport().Tolist();
repeater.DataBind();
try like this
I implemented many automation cases based on REST Assured , a jave DSL for testing restful service. https://code.google.com/p/rest-assured/
The syntax is easy, it supports json and xml. https://code.google.com/p/rest-assured/wiki/Usage
Before that, I tried SOAPUI and had some issues with the free version. Plus the cases are in xml files which hard to extend and reuse, simply I don't like
I used the onscroll
event at the element with the scrollbar. When triggered in IE, I added the following validation:
onscroll="if (document.activeElement==this) ignoreHideOptions()"
For >= iOS8: (Simplified @EliBud's answer).
#define APP_STORE_ID 1108885113
- (void)rateApp{
static NSString *const iOSAppStoreURLFormat = @"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?type=Purple+Software&id=%d";
NSURL *appStoreURL = [NSURL URLWithString:[NSString stringWithFormat:iOSAppStoreURLFormat, APP_STORE_ID]];
if ([[UIApplication sharedApplication] canOpenURL:appStoreURL]) {
[[UIApplication sharedApplication] openURL:appStoreURL];
}
}
Use Decimal.Truncate
It removes the fractional part from the decimal.
int i = (int)Decimal.Truncate(12.66m)
It's the other way around: B.class.isInstance(view)
Even if this can somehow be done it is a terrible idea since it would be possible to get a sequence that then gets used by another record!
A much better idea is to save the record and then retrieve the sequence afterwards.
The Android support library can be imported within gradle in the dependencies :
compile 'com.android.support:design:22.2.0'
It should be included within GradlePlease! And as an example to use it:
<android.support.design.widget.TextInputLayout
android:id="@+id/to_text_input_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<AutoCompleteTextView
android:id="@+id/autoCompleteTextViewTo"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:hint="To"
android:layout_marginTop="45dp"
/>
</android.support.design.widget.TextInputLayout>
Btw, the editor may not understand that AutoCompleteTextView is allowed within TextInputLayout.
None of the answers here removed my workspaces. But here is one solution that may work for you.
There's actually a pretty good implementation of a class decorator here:
https://github.com/agiliq/Django-parsley/blob/master/parsley/decorators.py
I actually think this is a pretty interesting implementation. Because it subclasses the class it decorates, it will behave exactly like this class in things like isinstance
checks.
It has an added benefit: it's not uncommon for the __init__
statement in a custom django Form to make modifications or additions to self.fields
so it's better for changes to self.fields
to happen after all of __init__
has run for the class in question.
Very clever.
However, in your class you actually want the decoration to alter the constructor, which I don't think is a good use case for a class decorator.
CREATE TABLE dbo.tblUsers
(
ID INT IDENTITY(1,1) NOT NULL PRIMARY KEY CLUSTERED,
UserID AS 'UID' + RIGHT('00000000' + CAST(ID AS VARCHAR(8)), 8) PERSISTED,
[Name] VARCHAR(50) NOT NULL,
)
marc_s's Answer Snap
Use a bytearray
:
>>> frame = bytearray()
>>> frame.append(0xA2)
>>> frame.append(0x01)
>>> frame.append(0x02)
>>> frame.append(0x03)
>>> frame.append(0x04)
>>> frame
bytearray(b'\xa2\x01\x02\x03\x04')
or, using your code but fixing the errors:
frame = b""
frame += b'\xA2'
frame += b'\x01'
frame += b'\x02'
frame += b'\x03'
frame += b'\x04'
The questioner actually asked about int16 (etc) rather than (ugly) int16_t (etc).
There are no standard headers - nor any in Linux's /usr/include/ folder that define them without the "_t".
If you want to use a function form a package or module in python you have to import and reference them. For example normally you do the following to draw 5 points( [1,5],[2,4],[3,3],[4,2],[5,1]) in the space:
import matplotlib.pyplot
matplotlib.pyplot.plot([1,2,3,4,5],[5,4,3,2,1],"bx")
matplotlib.pyplot.show()
In your solution
from matplotlib import*
This imports the package matplotlib and "plot is not defined" means there is no plot function in matplotlib you can access directly, but instead if you import as
from matplotlib.pyplot import *
plot([1,2,3,4,5],[5,4,3,2,1],"bx")
show()
Now you can use any function in matplotlib.pyplot without referencing them with matplotlib.pyplot.
I would recommend you to name imports you have, in this case you can prevent disambiguation and future problems with the same function names. The last and clean version of above example looks like:
import matplotlib.pyplot as plt
plt.plot([1,2,3,4,5],[5,4,3,2,1],"bx")
plt.show()
In Three.js R66, this is what I use (CoffeeScript version):
THREE.Object3D.prototype.rotateAroundWorldAxis = (axis, radians) ->
rotWorldMatrix = new THREE.Matrix4()
rotWorldMatrix.makeRotationAxis axis.normalize(), radians
rotWorldMatrix.multiply this.matrix
this.matrix = rotWorldMatrix
this.rotation.setFromRotationMatrix this.matrix
This should also work:
document.documentElement.className = 'myClass';
Edit:
IE 10 reckons it's readonly; yet:
Opera works:
I can also confirm it works in:
The default display
property for a table is display:table;
. The only other useful value is inline-table
. All other display
values are invalid for table elements.
There isn't an auto
option to reset it to default, although if you're working in Javascript, you can set it to an empty string, which will do the trick.
width:auto;
is valid, but isn't the default. The default width for a table is 100%
, whereas width:auto;
will make the element only take up as much width as it needs to.
min-width:auto;
isn't allowed. If you set min-width
, it must have a value, but setting it to zero is probably as good as resetting it to default.
git clone -b <branch> <remote_repo>
Example:
git clone -b my-branch [email protected]:user/myproject.git
With Git 1.7.10 and later, add --single-branch
to prevent fetching of all branches. Example, with OpenCV 2.4 branch:
git clone -b opencv-2.4 --single-branch https://github.com/Itseez/opencv.git
Sometimes you can play with padding and margin top, add line-height, etc.
See fiddle.
Style and text forked from @aspirinemaga
.parent
{
width:300px;
line-height:30px;
border:1px solid red;
padding-top:20px;
}
To put breakpoints in your code, double click in the left margin on the line you want execution to stop on. You may alternatively put your cursor in this line and then press Shift+Ctrl+B.
To control execution use the Step Into, Step Over and Step Return buttons. They have the shortcuts F5, F6 and F7 respectively.
To allow execution to continue normally or until it hits the next breakpoint, hit the Resume button or F8.
(Just a little bit of topic), but maybe if you searched you could stumble here... In markdown (tested with parsedown and on iOS / android) you could do :
[Link](sms:phone_number,?&body=URL_encoded_body_text)
//[send sms](sms:1234567890;?&body=my%20very%20interesting%20text)
Yes, but then what do you do about the django objects? simple json tends to choke on them.
If the objects are individual model objects (not querysets, e.g.), I have occasionally stored the model object type and the pk, like so:
seralized_dict = simplejson.dumps(my_dict,
default=lambda a: "[%s,%s]" % (str(type(a)), a.pk)
)
to de-serialize, you can reconstruct the object referenced with model.objects.get(). This doesn't help if you are interested in the object details at the type the dict is stored, but it's effective if all you need to know is which object was involved.
guys This error because of Element Id not Visible from js Try to inspect element from UI and paste it on javascript file:
before :
document.getElementById('form:salesoverviewform:ticketstatusid').value =topping;
After :
document.getElementById('form:salesoverviewform:j_idt190:ticketstatusid').value =topping;
Credits to Divya Akka .... :)
In MS-SQLServer:
ALTER TABLE one
ADD two_id integer CONSTRAINT fk FOREIGN KEY (two_id) REFERENCES two(id)
The problem was actually solved by providing crossOrigin: null to OpenLayers OSM source:
var newLayer = new ol.layer.Tile({
source: new ol.source.OSM({
url: 'E:/Maperitive/Tiles/vychod/{z}/{x}/{y}.png',
crossOrigin: null
})
});
Why do we need virtual functions?
Virtual functions avoid unnecessary typecasting problem, and some of us can debate that why do we need virtual functions when we can use derived class pointer to call the function specific in derived class!the answer is - it nullifies the whole idea of inheritance in large system development, where having single pointer base class object is much desired.
Let's compare below two simple programs to understand the importance of virtual functions:
Program without virtual functions:
#include <iostream>
using namespace std;
class father
{
public: void get_age() {cout << "Fathers age is 50 years" << endl;}
};
class son: public father
{
public : void get_age() { cout << "son`s age is 26 years" << endl;}
};
int main(){
father *p_father = new father;
son *p_son = new son;
p_father->get_age();
p_father = p_son;
p_father->get_age();
p_son->get_age();
return 0;
}
OUTPUT:
Fathers age is 50 years
Fathers age is 50 years
son`s age is 26 years
Program with virtual function:
#include <iostream>
using namespace std;
class father
{
public:
virtual void get_age() {cout << "Fathers age is 50 years" << endl;}
};
class son: public father
{
public : void get_age() { cout << "son`s age is 26 years" << endl;}
};
int main(){
father *p_father = new father;
son *p_son = new son;
p_father->get_age();
p_father = p_son;
p_father->get_age();
p_son->get_age();
return 0;
}
OUTPUT:
Fathers age is 50 years
son`s age is 26 years
son`s age is 26 years
By closely analyzing both the outputs one can understand the importance of virtual functions.
try something using a for loop
for i in `egrep -lR "YOURSEARCH" .` ; do echo $i; sed 's/f/k/' <$i >/tmp/`basename $i`; mv /tmp/`basename $i` $i; done
not pretty, but should do.
You can use this:
var isEmpty = function(obj) {
return Object.keys(obj).length === 0;
}
or this:
function isEmpty(obj) {
return !Object.keys(obj).length > 0;
}
You can also use this:
function isEmpty(obj) {
for(var prop in obj) {
if(obj.hasOwnProperty(prop))
return false;
}
return true;
}
If using underscore or jQuery, you can use their isEmpty
or isEmptyObject
calls.
Also remember one thing. Very important
You have to specify the command something like this to be more precise
grep -l "pattern" *
One of the best tools is using the Debugging Tools for Windows, and taking a memory dump of the process using adplus, then use windbg and the sos plugin to analyze the process memory, threads, and call stacks.
You can use this method for identifying problems on servers too, after installing the tools, share the directory, then connect to the share from the server using (net use) and either take a crash or hang dump of the process.
Then analyze offline.
The issue here is that input()
returns a string in Python 3.x, so when you do your comparison, you are comparing a string and an integer, which isn't well defined (what if the string is a word, how does one compare a string and a number?) - in this case Python doesn't guess, it throws an error.
To fix this, simply call int()
to convert your string to an integer:
int(input(...))
As a note, if you want to deal with decimal numbers, you will want to use one of float()
or decimal.Decimal()
(depending on your accuracy and speed needs).
Note that the more pythonic way of looping over a series of numbers (as opposed to a while
loop and counting) is to use range()
. For example:
def main():
print("Let me Retire Financial Calculator")
deposit = float(input("Please input annual deposit in dollars: $"))
rate = int(input ("Please input annual rate in percentage: %")) / 100
time = int(input("How many years until retirement?"))
value = 0
for x in range(1, time+1):
value = (value * rate) + deposit
print("The value of your account after" + str(x) + "years will be $" + str(value))
If you are using XDebug simply use
var_dump($variable);
This will dump the variable like print_r
does - but nicely formatted and in a <pre>
.
(If you don't use XDebug then var_dump
will be as badly formated as print_r
without <pre>
.)
You can use find
find . -type d > output.txt
or tree
tree -d > output.txt
tree
, If not installed on your system.
If you are using ubuntu
sudo apt-get install tree
If you are using mac os
.
brew install tree
Please, see oficial encode()
and decode()
documentation from codecs
library. utf-8
is the default encoding for the functions, but there are severals standard encodings in Python 3, like latin_1
or utf_32
.
You don't really have to call the __init__
methods of the base class(es), but you usually want to do it because the base classes will do some important initializations there that are needed for rest of the classes methods to work.
For other methods it depends on your intentions. If you just want to add something to the base classes behavior you will want to call the base classes method additionally to your own code. If you want to fundamentally change the behavior, you might not call the base class' method and implement all the functionality directly in the derived class.
On Excel 2010 try this:
Borrowing some of the code from an answer given at this link (no author is specified), you can include a nice smooth-scroll effect to the anchor, while making it stop at -60px above the anchor, fitting nicely underneath the fixed bootstrap navigation bar (requires jQuery):
$(".dropdown-menu a[href^='#']").on('click', function(e) {
// prevent default anchor click behavior
e.preventDefault();
// animate
$('html, body').animate({
scrollTop: $(this.hash).offset().top - 60
}, 300, function(){
});
});
The EOF
token must be at the beginning of the line, you can't indent it along with the block of code it goes with.
If you write <<-EOF
you may indent it, but it must be indented with Tab characters, not spaces. So it still might not end up even with the block of code.
Also make sure you have no whitespace after the EOF
token on the line.
I got this error when I did:
$ git submodule update --init --depth 1
but the commit in the parent project was pointing at an earlier commit.
Deleting the submodule folder and running:
$ git submodule update --init
did NOT solve the problem. I deleted the repo and tried again without the depth flag and it worked.
This error happens in Ubuntu 16.04 git 2.7.4, but not on Ubuntu 18.04 git 2.17, TODO find exact fixing commit or version.
Move your row before <div class="container marketing">
and wrap it with a new container, because current container width is 1170px (not 100%):
<div class='hero'>
<div class="row">
...
</div>
</div>
CSS:
.hero {
background-color: #2ba6cb;
padding: 0 90px;
}
rm -rf .git
should suffice. That will blow away all Git-related information.
And here's my solution should work with Excel > 2000, but tested only on 2007:
Private Sub SaveAllSheetsAsCSV()
On Error GoTo Heaven
' each sheet reference
Dim Sheet As Worksheet
' path to output to
Dim OutputPath As String
' name of each csv
Dim OutputFile As String
Application.ScreenUpdating = False
Application.DisplayAlerts = False
Application.EnableEvents = False
' ask the user where to save
OutputPath = InputBox("Enter a directory to save to", "Save to directory", Path)
If OutputPath <> "" Then
' save for each sheet
For Each Sheet In Sheets
OutputFile = OutputPath & "\" & Sheet.Name & ".csv"
' make a copy to create a new book with this sheet
' otherwise you will always only get the first sheet
Sheet.Copy
' this copy will now become active
ActiveWorkbook.SaveAs FileName:=OutputFile, FileFormat:=xlCSV, CreateBackup:=False
ActiveWorkbook.Close
Next
End If
Finally:
Application.ScreenUpdating = True
Application.DisplayAlerts = True
Application.EnableEvents = True
Exit Sub
Heaven:
MsgBox "Couldn't save all sheets to CSV." & vbCrLf & _
"Source: " & Err.Source & " " & vbCrLf & _
"Number: " & Err.Number & " " & vbCrLf & _
"Description: " & Err.Description & " " & vbCrLf
GoTo Finally
End Sub
(OT: I wonder if SO will replace some of my minor blogging)
I think the easiest way for verifying an argument object is to use the refEq
method:
Mockito.verify(mockedObject).someMethodOnMockedObject(ArgumentMatchers.refEq(objectToCompareWith));
It can be used even if the object doesn't implement equals()
, because reflection is used. If you don't want to compare some fields, just add their names as arguments for refEq
.
Also the $wshell = New-Object -ComObject wscript.shell;
helped a script that was running in the background, it worked fine with just but adding $wshell
. fixed it from running as background! [Microsoft.VisualBasic.Interaction]::AppActivate("App Name")
Here's a couple of suggestions:
Use date_range
for the index:
import datetime
import pandas as pd
import numpy as np
todays_date = datetime.datetime.now().date()
index = pd.date_range(todays_date-datetime.timedelta(10), periods=10, freq='D')
columns = ['A','B', 'C']
Note: we could create an empty DataFrame (with NaN
s) simply by writing:
df_ = pd.DataFrame(index=index, columns=columns)
df_ = df_.fillna(0) # with 0s rather than NaNs
To do these type of calculations for the data, use a numpy array:
data = np.array([np.arange(10)]*3).T
Hence we can create the DataFrame:
In [10]: df = pd.DataFrame(data, index=index, columns=columns)
In [11]: df
Out[11]:
A B C
2012-11-29 0 0 0
2012-11-30 1 1 1
2012-12-01 2 2 2
2012-12-02 3 3 3
2012-12-03 4 4 4
2012-12-04 5 5 5
2012-12-05 6 6 6
2012-12-06 7 7 7
2012-12-07 8 8 8
2012-12-08 9 9 9
select convert_tz(now(),@@session.time_zone,'+05:30')
replace '+05:30' with desired timezone. see here - https://stackoverflow.com/a/3984412/2359994
to format into desired time format, eg:
select DATE_FORMAT(convert_tz(now(),@@session.time_zone,'+05:30') ,'%b %d %Y %h:%i:%s %p')
you will get similar to this -> Dec 17 2014 10:39:56 AM
To concatenate two strings in 2008 or prior:
SELECT ISNULL(FirstName, '') + ' ' + ISNULL(SurName, '')
good to use ISNULL because "String + NULL" will give you a NULL only
One more thing: Make sure you are concatenating strings otherwise use a CAST operator:
SELECT 2 + 3
Will give 5
SELECT '2' + '3'
Will give 23
Selenium2Library has get_location():
import Selenium2Library
s = Selenium2Library.Selenium2Library()
url = s.get_location()
There is an event Page.Unload
. At that moment page is already rendered in HTML and HTML can't be modified. Still, all page objects are available.
Thanks - your suggestion about $JAVA_HOME
lead me to a similar solution:
prompt$ unset JAVA_HOME
before invoking R.
You almost made it on your own, but in the end there seems to be something wrong with your profile.
First I would recommend a tool to "look inside" the profile to make sure it's the right one: http://furbo.org/2013/11/02/a-quick-look-plug-in-for-provisioning/
This will just add some more information about the profile, when selecting it in Finder and pressing space (Quick Look).
Check your Xcode Preferences:
Xcode stores the profiles in ~/Library/MobileDevice/Provisioning Profiles
If your distribution profile is not in there, double click on it.
Then it should appear in that folder, but with a hashed name, e.g. 1edf8f42-fd1c-48a9-8938-754cdf6f7f41.mobileprovision
at this point the Quick Look plugin comes in handy :-)
Next, check your Project Settings:
Next, check your Scheme Settings:
Next, check the Keychain Access Trust
settings:
iPhone Distribution: Elena Carrasco (8HE2MJLM25)
on the rightApple Worldwide Developer Relations Certificate Authority
Next, check the Keychain Access private key Access Control
:
/usr/bin/codesign
) cmd + shift + g
to enter the path manually/usr/bin/productbuild
here as well (thx to DesignatedNerd)Hope one of this does trick for you!
Update (4/22/16):
I just found a very nice explanation about the whole code sign process (it's really worth reading): https://www.objc.io/issues/17-security/inside-code-signing/
Just use the name of the main folder which the .py file is in.
from problem_set_02.p_02_paying_debt_off_in_a_year import compute_balance_after
This is inherently the wrong thing to do. If you are running a Python script from another Python script, you should communicate through Python instead of through the OS:
import script1
In an ideal world, you will be able to call a function inside script1
directly:
for i in range(whatever):
script1.some_function(i)
If necessary, you can hack sys.argv
. There's a neat way of doing this using a context manager to ensure that you don't make any permanent changes.
import contextlib
@contextlib.contextmanager
def redirect_argv(num):
sys._argv = sys.argv[:]
sys.argv=[str(num)]
yield
sys.argv = sys._argv
with redirect_argv(1):
print(sys.argv)
I think this is preferable to passing all your data to the OS and back; that's just silly.
In addition to all the excellent answers here, newer versions of matplotlib
and pylab
can automatically determine where to put the legend without interfering with the plots, if possible.
pylab.legend(loc='best')
This will automatically place the legend away from the data if possible!
However, if there is no place to put the legend without overlapping the data, then you'll want to try one of the other answers; using loc="best"
will never put the legend outside of the plot.
It's the ternary form of the if-else operator. The above statement basically reads like this:
if ($add_review) then {
return FALSE; //$add_review evaluated as True
} else {
return $arg //$add_review evaluated as False
}
See here for more details on ternary op in PHP: http://www.addedbytes.com/php/ternary-conditionals/
An Optional variable may contain a value or may be not
case 1: var myVar:String? = "Something"
case 2: var myVar:String? = nil
now if you ask myVar!, you are telling compiler to return a value in case 1 it will return "Something"
in case 2 it will crash.
Meaning ! mark will force compiler to return a value, even if its not there. thats why the name Force Unwrapping.
If you're getting this, you may have forgotten to put #include <thread>
at the beginning of your file. OP's signature seems like it should work.
<?php
if(isset($_POST['nameCheckbox'])){
$_SESSION['fr_nameCheckbox'] = true;
}
?>
<input type="checkbox" name="nameCheckbox"
<?php
if(isset($_SESSION['fr_nameCheckbox'])){
echo 'checked';
unset($_SESSION['fr_nameCheckbox']);
}
?>
To stay in line with your original request:
window.location.href = 'some_url'
You can do something like this:
<div @click="this.window.location='some_url'">
</div>
Note that this does not take advantage of using Vue's router, but if you want to "make a redirection in Vue.js similar to the vanilla javascript", this would work.
I have tried some of the previous suggestions. It does update the table but I have some concerns:
dataSource.data
with its clone. e.g.this.dataSource.data = [...this.dataSource.data];
If the data is large, this will reallocate lot of memory. Moreover, MatTable thinks that everything is new inside the table, so it may cause performance issue. I found my table flickers where my table has about 300 rows.
paginator._changePageSize
. e.g.this.paginator._changePageSize(this.paginator.pageSize);
It will emit page
event. If you have already had some handling for the page
event. You may find it weird because the event may be fired more than once. And there can be a risk that if somehow the event will trigger _changePageSize()
indirectly, it will cause infinite loop...
I suggest another solution here. If your table is not relying on dataSource
's filter
field.
filter
field to trigger table refresh:this.dataSource.filter = ' '; // Note that it is a space, not empty string
By doing so, the table will perform filtering and thus updating the UI of the table. But it requires having your own dataSource.filterPredicate()
to handling your filtering logic.
` Please include either of these:
`#include<sstream>`
using std::istringstream;
Github did this using the HTML canvas element.
This specification defines the 2D Context for the HTML canvas element. The 2D Context provides objects, methods, and properties to draw and manipulate graphics on a canvas drawing surface.
If you use a browser inspector, you see inside every list element a div with a canvas element.
<div class="participation-graph">
<canvas class="bars" data-color-all="#F5F5F5" data-color-owner="#F5F5F5" data-source="/mxcl/homebrew/graphs/owner_participation" height="80" width="640"></canvas>
</div>
With CSS (z-index, position...) you can put that canvas in the background of a li element or table, in your case.
Do a search about jquery pluggins that fit your requirement.
Hope this pointers help you to achieve that.
rm !(textfile.txt|backup.tar.gz|script.php|database.sql|info.txt)
The extglob (Extended Pattern Matching) needs to be enabled in BASH (if it's not enabled):
shopt -s extglob
Easiest solution: set android:animateLayoutChanges="true"
on the container holding your views.
To put it into some context: If you have a layout like below, all visibility changes to the views in this container will be animated automatically.
<LinearLayout android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
>
<Views_which_change_visibility>
</LinearLayout>
You can find more details about this on Animating Layout Changes - Android Developer
I think a solution is to put count in back ticks
.filter("`count` >= 2")
function liReplace(replacement) {
$(".dropit-submenu li").each(function() {
var t = $(this);
t.html(t.html().replace(replacement, "*" + replacement + "*"));
t.children(":first").html(t.children(":first").html().replace(replacement, "*" +` `replacement + "*"));
t.children(":first").html(t.children(":first").html().replace(replacement + " ", ""));
alert(t.children(":first").text());
});
}
t.html(t.html()
t.children(":first")
Sample <a title="alpc" href="#">alpc</a>
Starting pandas 1.0.0, we have pandas.DataFrame.convert_dtypes
. You can even control what types to convert!
In [40]: df = pd.DataFrame(
...: {
...: "a": pd.Series([1, 2, 3], dtype=np.dtype("int32")),
...: "b": pd.Series(["x", "y", "z"], dtype=np.dtype("O")),
...: "c": pd.Series([True, False, np.nan], dtype=np.dtype("O")),
...: "d": pd.Series(["h", "i", np.nan], dtype=np.dtype("O")),
...: "e": pd.Series([10, np.nan, 20], dtype=np.dtype("float")),
...: "f": pd.Series([np.nan, 100.5, 200], dtype=np.dtype("float")),
...: }
...: )
In [41]: dff = df.copy()
In [42]: df
Out[42]:
a b c d e f
0 1 x True h 10.0 NaN
1 2 y False i NaN 100.5
2 3 z NaN NaN 20.0 200.0
In [43]: df.dtypes
Out[43]:
a int32
b object
c object
d object
e float64
f float64
dtype: object
In [44]: df = df.convert_dtypes()
In [45]: df.dtypes
Out[45]:
a Int32
b string
c boolean
d string
e Int64
f float64
dtype: object
In [46]: dff = dff.convert_dtypes(convert_boolean = False)
In [47]: dff.dtypes
Out[47]:
a Int32
b string
c object
d string
e Int64
f float64
dtype: object
Here's a very naive implementation I'm using. It's non-destructive and also makes sure not to duplicate entires.
Array.prototype.contains = function(elem) {
return(this.indexOf(elem) > -1);
};
Array.prototype.intersect = function( array ) {
// this is naive--could use some optimization
var result = [];
for ( var i = 0; i < this.length; i++ ) {
if ( array.contains(this[i]) && !result.contains(this[i]) )
result.push( this[i] );
}
return result;
}
Function taken from http://www.php.net/manual/en/function.max.php
function max_key($array) {
foreach ($array as $key => $val) {
if ($val == max($array)) return $key;
}
}
$arr = array (
'11' => 14,
'10' => 9,
'12' => 7,
'13' => 7,
'14' => 4,
'15' => 6
);
die(var_dump(max_key($arr)));
Works like a charm
$str='<?php $myvalue = Test me more; ?>';
$s = preg_split("/= *(.[^ ]*?) /", $str,-1,PREG_SPLIT_DELIM_CAPTURE);
print $s[1];
You can get and set environment variables via os.environ
:
import os
user_home = os.environ["HOME"]
os.environ["PYTHONPATH"] = "..."
But since your interpreter is already running, this will have no effect. You're better off using
import sys
sys.path.append("...")
which is the array that your PYTHONPATH
will be transformed into on interpreter startup.
Regarding Jay Stevens answer: "The fonts available to use in an HTML file have to be present on the user's machine and accessible from the web browser, so unless you want to distribute the fonts to the user's machine via a separate external process, it can't be done." That's true.
But there is another way using javascript / canvas / flash - very good solution gives cufon: http://cufon.shoqolate.com/generate/ library that generates a very easy to use external fonts methods.
DateTime.Now.ToString("ddMMyyyyhhmmssffff")
The syntax of this question looks like Robot Framework syntax. In this case, although there is no css selector that you can use for contains, there is a SeleniumLibrary keyword that you can use instead. The Wait Until Element Contains.
Example:
Wait Until Element Contains | ${element} | ${contains}
Wait Until Element Contains | td | male
This works for me:
SELECT * FROM table_name
ORDER BY RANDOM()
LIMIT [number]
Perform a composer update
, then composer dump-autoload
.
If the above doesn't solve the problem, change the classmap
in your composer.json
file such that it contains the project-relative path to your php files:
"autoload-dev": {
"classmap": [
"tests/TestCase.php",
"database/seeds/UserTableSeeder.php" //include the file with its path here
]
}, /** ... */
and soon after, perform a composer dump-autoload
, and it should work now like a breeze!
If composer dump-autoload
is not found, just enable this option composer config -g -- disable-tls true
.
Need to use this way I have used this one and it's working fine.
react-native-responsive-screen npm install react-native-responsive-screen --save
Just like I have a device 1080x1920
The vertical number we calculate from height **hp**
height:200
200/1920*100 = 10.41% - height:hp("10.41%")
The Horizontal number we calculate from width **wp**
width:200
200/1080*100 = 18.51% - Width:wp("18.51%")
It's working for all device
That 2GB
limit you see is the total memory of the VM in which docker runs.
If you are using docker-for-windows or docker-for-mac you can easily increase it from the Whale icon in the task bar, then go to Preferences -> Advanced:
But if you are using VirtualBox behind, open VirtualBox, Select and configure the docker-machine assigned memory.
See this for Mac:
https://docs.docker.com/docker-for-mac/#memory
MEMORY By default, Docker for Mac is set to use 2 GB runtime memory, allocated from the total available memory on your Mac. You can increase the RAM on the app to get faster performance by setting this number higher (for example to 3) or lower (to 1) if you want Docker for Mac to use less memory.
For Windows:
https://docs.docker.com/docker-for-windows/#advanced
Memory - Change the amount of memory the Docker for Windows Linux VM uses
Seems like a bug to me. I've had the same problem and worked around it by manually starting gradlew.bat in my project directory.
foreach (DataRow row in dt.Rows)
{
foreach (DataColumn col in dt.Columns)
Console.WriteLine(row[col]);
}
You don't have to have a method for that. You could create a property like this instead:
class SalesPerson
{
string firstName, lastName;
public string FirstName { get { return firstName; } set { firstName = value; } }
public string LastName { get { return lastName; } set { lastName = value; } }
public string FullName { get { return this.FirstName + " " + this.LastName; } }
}
The class could even be shortened to:
class SalesPerson
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string FullName {
get { return this.FirstName + " " + this.LastName; }
}
}
The property could then be accessed like any other property:
class Program
{
static void Main(string[] args)
{
SalesPerson x = new SalesPerson("John", "Doe");
Console.WriteLine(x.FullName); // Will print John Doe
}
}
Change the window name in your two different calls:
function popitup(url,windowName) {
newwindow=window.open(url,windowName,'height=200,width=150');
if (window.focus) {newwindow.focus()}
return false;
}
windowName must be unique when you open a new window with same url otherwise the same window will be refreshed.
<div class('a')>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
</div>
<div class('b')>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
<div class('.cols-to-eq')></div>
</div>
var a = ['.a','.b'];
a.forEach(function(value) {
var column = 0;
$(value).find('.cols-to-eq').each(function(){
if($(this).height() > column){
column = $(this).height();
}
});
$(value).find('.cols-to-
eq').attr('style','height:'+column+'px');
});
Looks like nobody mentioned
SET NAMES utf8;
I found this solution here and it helped me. How to apply it:
To be all UTF-8, issue the following statement just after you’ve made the connection to the database server: SET NAMES utf8;
Maybe this will help someone.
If you are using EL 3.0+, the best approach in this case is as this other answer explained in another topic:
For a
Collection
it's easy, just use theColleciton#contains()
method in EL.<h:panelGroup id="p1" rendered="#{bean.panels.contains('p1')}">...</h:panelGroup> <h:panelGroup id="p2" rendered="#{bean.panels.contains('p2')}">...</h:panelGroup> <h:panelGroup id="p3" rendered="#{bean.panels.contains('p3')}">...</h:panelGroup>
For an
Object[]
(array), you'd need a minimum of EL 3.0 and utilize its new Lambda support.<h:panelGroup id="p1" rendered="#{bean.panels.stream().anyMatch(v -> v == 'p1').get()}">...</h:panelGroup> <h:panelGroup id="p2" rendered="#{bean.panels.stream().anyMatch(v -> v == 'p2').get()}">...</h:panelGroup> <h:panelGroup id="p3" rendered="#{bean.panels.stream().anyMatch(v -> v == 'p3').get()}">...</h:panelGroup>
If you're not on EL 3.0 yet, you'd need to create a custom EL function. [...]
It worked for me too.
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webXml>WebContent\WEB-INF\web.xml</webXml>
</configuration>
</plugin>
Create a view. Yes, in the view creation statement, you will have to list each...and...every...field...by...name.
Once.
Then just select * from viewname
after that.
1)
# netstat -lp|grep -i x tcp 0 0 *:x11 *:* LISTEN 2937/X tcp6 0 0 [::]:x11 [::]:* LISTEN 2937/X Active UNIX domain sockets (only servers) unix 2 [ ACC ] STREAM LISTENING 8940 2937/X @/tmp/.X11-unix/X0 unix 2 [ ACC ] STREAM LISTENING 8941 2937/X /tmp/.X11-unix/X0 #
2) nmap
# nmap localhost|grep -i x 6000/tcp open X11 #
Unless your compiler is different than the one supplied with the Mac XCode Dev tools, just follow the instructions in section 5.1 of Getting Started Guide for Unix Variants. The configuration and building of the latest source couldn't be easier, and it took all about about 1 minute to configure and 10 minutes to compile.
This is how I am checking if my app is in foreground. Note I am using AsyncTask as suggested by official Android documentation.`
`
private class CheckIfForeground extends AsyncTask<Void, Void, Void> {
@Override
protected Void doInBackground(Void... voids) {
ActivityManager activityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> appProcesses = activityManager.getRunningAppProcesses();
for (ActivityManager.RunningAppProcessInfo appProcess : appProcesses) {
if (appProcess.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND) {
Log.i("Foreground App", appProcess.processName);
if (mContext.getPackageName().equalsIgnoreCase(appProcess.processName)) {
Log.i(Constants.TAG, "foreground true:" + appProcess.processName);
foreground = true;
// close_app();
}
}
}
Log.d(Constants.TAG, "foreground value:" + foreground);
if (foreground) {
foreground = false;
close_app();
Log.i(Constants.TAG, "Close App and start Activity:");
} else {
//if not foreground
close_app();
foreground = false;
Log.i(Constants.TAG, "Close App");
}
return null;
}
}
and execute AsyncTask like this.
new CheckIfForeground().execute();
nil?
is blank?
empty?
is blank?
empty?
is nil?
nil?
is empty?
tl;dr -- only use blank?
& present?
unless you want to distinguish between ""
and " "
npm i -g npm
Update available 4.5.0 ? 4.6.1 ¦
¦ Run npm i -g npm to update
this is what npm recommends when in terminal, second piece is directly copied and pasted from my terminal
note: im using a mac
Issues arise among before and after versions of Android 4.0 (API level 14).
from here I created my own solution.
@SuppressLint("NewApi")
@Override
protected void onResume()
{
super.onResume();
if (Build.VERSION.SDK_INT < 16)
{
// Hide the status bar
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
// Hide the action bar
getSupportActionBar().hide();
}
else
{
// Hide the status bar
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
/ Hide the action bar
getActionBar().hide();
}
}
I write this code in onResume() method because if you exit from your app and then you reopen it, the action bar remains active! (and so this fix the problem)
I hope it was helpful ;)
That's because keys
returns LazyMapCollection<[Key : Value], Key>
, which can't be subscripted with an Int
. One way to handle this is to advance the dictionary's startIndex
by the integer that you wanted to subscript by, for example:
let intIndex = 1 // where intIndex < myDictionary.count
let index = myDictionary.index(myDictionary.startIndex, offsetBy: intIndex)
myDictionary.keys[index]
Another possible solution would be to initialize an array with keys
as input, then you can use integer subscripts on the result:
let firstKey = Array(myDictionary.keys)[0] // or .first
Remember, dictionaries are inherently unordered, so don't expect the key at a given index to always be the same.
The whole point is to write implementation-independent code. unsigned char
is not guaranteed to be an 8-bit type. uint8_t
is (if available).
What system are you running on? Do you have access to some sort of debugger (gdb, visual studio's debugger, etc.)?
That would give us valuable information, like the line of code where the program crashes... Also, the amount of memory may be prohibitive.
Additionally, may I recommend that you replace the numeric limits by named definitions?
As such:
#define DIM1_SZ 1000
#define DIM2_SZ 1000000
Use those whenever you wish to refer to the array dimension limits. It will help avoid typing errors.
Could you use jQuery, since it's cross-browser compatible?
function isOnScreen(element)
{
var curPos = element.offset();
var curTop = curPos.top;
var screenHeight = $(window).height();
return (curTop > screenHeight) ? false : true;
}
And then call the function using something like:
if(isOnScreen($('#myDivId'))) { /* Code here... */ };
Using regexes for this purpose is the wrong approach. Since you are using python you have a really awesome library available to extract parts from HTML documents: BeautifulSoup.
you have a lot of answers in the post
var d1 = new Date (),
d2 = new Date ( d1 );
d2.setMinutes ( d1.getMinutes() + 20 );
alert ( d2 );
I achieved 1600k concurrent idle socket connections, and at the same time 57k req/s on a Linux desktop (16G RAM, I7 2600 CPU). It's a single thread http server written in C with epoll. Source code is on github, a blog here.
Edit:
I did 600k concurrent HTTP connections (client & server) on both the same computer, with JAVA/Clojure . detail info post, HN discussion: http://news.ycombinator.com/item?id=5127251
The cost of a connection(with epoll):
Each registered file descriptor costs roughly 90 bytes on a 32-bit kernel, and roughly 160 bytes on a 64-bit kernel.
Unfortunately, the MinGW-w64 installer you used sometimes has this issue. I myself am not sure about why this happens (I think it has something to do with Sourceforge URL redirection or whatever that the installer currently can't handle properly enough).
Anyways, if you're already planning on using MSYS2, there's no need for that installer.
Download MSYS2 from this page (choose 32 or 64-bit according to what version of Windows you are going to use it on, not what kind of executables you want to build, both versions can build both 32 and 64-bit binaries).
After the install completes, click on the newly created "MSYS2 Shell" option under either MSYS2 64-bit
or MSYS2 32-bit
in the Start menu. Update MSYS2 according to the wiki (although I just do a pacman -Syu
, ignore all errors and close the window and open a new one, this is not recommended and you should do what the wiki page says).
Install a toolchain
a) for 32-bit:
pacman -S mingw-w64-i686-gcc
b) for 64-bit:
pacman -S mingw-w64-x86_64-gcc
install any libraries/tools you may need. You can search the repositories by doing
pacman -Ss name_of_something_i_want_to_install
e.g.
pacman -Ss gsl
and install using
pacman -S package_name_of_something_i_want_to_install
e.g.
pacman -S mingw-w64-x86_64-gsl
and from then on the GSL library is automatically found by your MinGW-w64 64-bit compiler!
Open a MinGW-w64 shell:
a) To build 32-bit things, open the "MinGW-w64 32-bit Shell"
b) To build 64-bit things, open the "MinGW-w64 64-bit Shell"
Verify that the compiler is working by doing
gcc -v
If you want to use the toolchains (with installed libraries) outside of the MSYS2 environment, all you need to do is add <MSYS2 root>/mingw32/bin
or <MSYS2 root>/mingw64/bin
to your PATH
.
I wrote this method to handle UTF8 arrays and JSON problems. It works fine with array (simple and multidimensional).
/**
* Encode array from latin1 to utf8 recursively
* @param $dat
* @return array|string
*/
public static function convert_from_latin1_to_utf8_recursively($dat)
{
if (is_string($dat)) {
return utf8_encode($dat);
} elseif (is_array($dat)) {
$ret = [];
foreach ($dat as $i => $d) $ret[ $i ] = self::convert_from_latin1_to_utf8_recursively($d);
return $ret;
} elseif (is_object($dat)) {
foreach ($dat as $i => $d) $dat->$i = self::convert_from_latin1_to_utf8_recursively($d);
return $dat;
} else {
return $dat;
}
}
// Sample use
// Just pass your array or string and the UTF8 encode will be fixed
$data = convert_from_latin1_to_utf8_recursively($data);
The reason eval
and exec
are so dangerous is that the default compile
function will generate bytecode for any valid python expression, and the default eval
or exec
will execute any valid python bytecode. All the answers to date have focused on restricting the bytecode that can be generated (by sanitizing input) or building your own domain-specific-language using the AST.
Instead, you can easily create a simple eval
function that is incapable of doing anything nefarious and can easily have runtime checks on memory or time used. Of course, if it is simple math, than there is a shortcut.
c = compile(stringExp, 'userinput', 'eval')
if c.co_code[0]==b'd' and c.co_code[3]==b'S':
return c.co_consts[ord(c.co_code[1])+ord(c.co_code[2])*256]
The way this works is simple, any constant mathematic expression is safely evaluated during compilation and stored as a constant. The code object returned by compile consists of d
, which is the bytecode for LOAD_CONST
, followed by the number of the constant to load (usually the last one in the list), followed by S
, which is the bytecode for RETURN_VALUE
. If this shortcut doesn't work, it means that the user input isn't a constant expression (contains a variable or function call or similar).
This also opens the door to some more sophisticated input formats. For example:
stringExp = "1 + cos(2)"
This requires actually evaluating the bytecode, which is still quite simple. Python bytecode is a stack oriented language, so everything is a simple matter of TOS=stack.pop(); op(TOS); stack.put(TOS)
or similar. The key is to only implement the opcodes that are safe (loading/storing values, math operations, returning values) and not unsafe ones (attribute lookup). If you want the user to be able to call functions (the whole reason not to use the shortcut above), simple make your implementation of CALL_FUNCTION
only allow functions in a 'safe' list.
from dis import opmap
from Queue import LifoQueue
from math import sin,cos
import operator
globs = {'sin':sin, 'cos':cos}
safe = globs.values()
stack = LifoQueue()
class BINARY(object):
def __init__(self, operator):
self.op=operator
def __call__(self, context):
stack.put(self.op(stack.get(),stack.get()))
class UNARY(object):
def __init__(self, operator):
self.op=operator
def __call__(self, context):
stack.put(self.op(stack.get()))
def CALL_FUNCTION(context, arg):
argc = arg[0]+arg[1]*256
args = [stack.get() for i in range(argc)]
func = stack.get()
if func not in safe:
raise TypeError("Function %r now allowed"%func)
stack.put(func(*args))
def LOAD_CONST(context, arg):
cons = arg[0]+arg[1]*256
stack.put(context['code'].co_consts[cons])
def LOAD_NAME(context, arg):
name_num = arg[0]+arg[1]*256
name = context['code'].co_names[name_num]
if name in context['locals']:
stack.put(context['locals'][name])
else:
stack.put(context['globals'][name])
def RETURN_VALUE(context):
return stack.get()
opfuncs = {
opmap['BINARY_ADD']: BINARY(operator.add),
opmap['UNARY_INVERT']: UNARY(operator.invert),
opmap['CALL_FUNCTION']: CALL_FUNCTION,
opmap['LOAD_CONST']: LOAD_CONST,
opmap['LOAD_NAME']: LOAD_NAME
opmap['RETURN_VALUE']: RETURN_VALUE,
}
def VMeval(c):
context = dict(locals={}, globals=globs, code=c)
bci = iter(c.co_code)
for bytecode in bci:
func = opfuncs[ord(bytecode)]
if func.func_code.co_argcount==1:
ret = func(context)
else:
args = ord(bci.next()), ord(bci.next())
ret = func(context, args)
if ret:
return ret
def evaluate(expr):
return VMeval(compile(expr, 'userinput', 'eval'))
Obviously, the real version of this would be a bit longer (there are 119 opcodes, 24 of which are math related). Adding STORE_FAST
and a couple others would allow for input like 'x=5;return x+x
or similar, trivially easily. It can even be used to execute user-created functions, so long as the user created functions are themselves executed via VMeval (don't make them callable!!! or they could get used as a callback somewhere). Handling loops requires support for the goto
bytecodes, which means changing from a for
iterator to while
and maintaining a pointer to the current instruction, but isn't too hard. For resistance to DOS, the main loop should check how much time has passed since the start of the calculation, and certain operators should deny input over some reasonable limit (BINARY_POWER
being the most obvious).
While this approach is somewhat longer than a simple grammar parser for simple expressions (see above about just grabbing the compiled constant), it extends easily to more complicated input, and doesn't require dealing with grammar (compile
take anything arbitrarily complicated and reduces it to a sequence of simple instructions).
The only real difference between RPC and RMI is that there is objects involved in RMI: instead of invoking functions through a proxy function, we invoke methods through a proxy.
If code doesn't generate any error, but you don't hear sound - create the player as an instance:
static var player: AVAudioPlayer!
For me the first solution worked when I did this change :)
jQuery does not have reset()
method; but native JavaScript does. So, convert the jQuery element to a JavaScript object by either using :
$("#formId")[0].reset();
$("#formId").get(0).reset();
We may simply use Javascript code
document.getElementById("formid").reset();
Just cast it as a const char *. print((const char *)"Yo!") will work fine.
I am getting day
, month
and year
using dedicated functions moment().date(), moment().month() and moment().year() of momentjs
.
let day = moment('2014-07-28', 'YYYY/MM/DD').date();_x000D_
let month = 1 + moment('2014-07-28', 'YYYY/MM/DD').month();_x000D_
let year = moment('2014-07-28', 'YYYY/MM/DD').year();_x000D_
_x000D_
console.log(day);_x000D_
console.log(month);_x000D_
console.log(year);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.1/moment.min.js"></script>
_x000D_
I don't know why there are 48 upvotes for @Chris Schmitz answer which is not 100% correct.
Month is in form of array and starts from 0 so to get exact value we should use 1 + moment().month()
Font.PLAIN is not an enum. It is just an int
. If you need to take the value out of an enum, you can't avoid calling a method or using a .value
, because enums are actually objects of its own type, not primitives.
If you truly only need an int
, and you are already to accept that type-safety is lost the user may pass invalid values to your API, you may define those constants as int
also:
public final class DownloadType {
public static final int AUDIO = 0;
public static final int VIDEO = 1;
public static final int AUDIO_AND_VIDEO = 2;
// If you have only static members and want to simulate a static
// class in Java, then you can make the constructor private.
private DownloadType() {}
}
By the way, the value
field is actually redundant because there is also an .ordinal()
method, so you could define the enum
as:
enum DownloadType { AUDIO, VIDEO, AUDIO_AND_VIDEO }
and get the "value" using
DownloadType.AUDIO_AND_VIDEO.ordinal()
Edit: Corrected the code.. static class
is not allowed in Java. See this SO answer with explanation and details on how to define static classes in Java.
I know you can do it for MSIE and this limited example seems to work for firefox (not sure how extensible the technique is).
One thing I've not found through the answers is that there are two possible landscape orientations, and I wanted to let both be available!
So android:screenOrientation="landscape"
will lock your app only to one of the 2 possibilities, but if you want your app to be limited to both landscape orientations (for them whom is not clear, having device on portrait, one is rotating left and the other one rotating right) this is what is needed:
android:screenOrientation="sensorLandscape"
The easiest way I have found is to get the time offset of where you are, then subtract that from the hour.
def format_time(ts,offset):
if not ts.hour >= offset:
ts = ts.replace(day=ts.day-1)
ts = ts.replace(hour=ts.hour-offset)
else:
ts = ts.replace(hour=ts.hour-offset)
return ts
This works for me, in Python 3.5.2.
Andrey Tarasevich provides the following explanation:
[Minor changes to formatting made. Parenthetical annotations added in square brackets []
].
The whole idea of using 'do/while' version is to make a macro which will expand into a regular statement, not into a compound statement. This is done in order to make the use of function-style macros uniform with the use of ordinary functions in all contexts.
Consider the following code sketch:
if (<condition>) foo(a); else bar(a);
where
foo
andbar
are ordinary functions. Now imagine that you'd like to replace functionfoo
with a macro of the above nature [namedCALL_FUNCS
]:if (<condition>) CALL_FUNCS(a); else bar(a);
Now, if your macro is defined in accordance with the second approach (just
{
and}
) the code will no longer compile, because the 'true' branch ofif
is now represented by a compound statement. And when you put a;
after this compound statement, you finished the wholeif
statement, thus orphaning theelse
branch (hence the compilation error).One way to correct this problem is to remember not to put
;
after macro "invocations":if (<condition>) CALL_FUNCS(a) else bar(a);
This will compile and work as expected, but this is not uniform. The more elegant solution is to make sure that macro expand into a regular statement, not into a compound one. One way to achieve that is to define the macro as follows:
#define CALL_FUNCS(x) \ do { \ func1(x); \ func2(x); \ func3(x); \ } while (0)
Now this code:
if (<condition>) CALL_FUNCS(a); else bar(a);
will compile without any problems.
However, note the small but important difference between my definition of
CALL_FUNCS
and the first version in your message. I didn't put a;
after} while (0)
. Putting a;
at the end of that definition would immediately defeat the entire point of using 'do/while' and make that macro pretty much equivalent to the compound-statement version.I don't know why the author of the code you quoted in your original message put this
;
afterwhile (0)
. In this form both variants are equivalent. The whole idea behind using 'do/while' version is not to include this final;
into the macro (for the reasons that I explained above).
For a quick n' dirty self-signed cert, you can also use flask run --cert adhoc
or set the FLASK_RUN_CERT
env var.
$ export FLASK_APP="app.py"
$ export FLASK_ENV=development
$ export FLASK_RUN_CERT=adhoc
$ flask run
* Serving Flask app "app.py" (lazy loading)
* Environment: development
* Debug mode: on
* Running on https://127.0.0.1:5000/ (Press CTRL+C to quit)
* Restarting with stat
* Debugger is active!
* Debugger PIN: 329-665-000
The adhoc
option isn't well documented (for good reason, never do this in production), but it's mentioned in the cli.py source code.
There's a thorough explanation of this by Miguel Grinberg at Running Your Flask Application Over HTTPS.
request.raw_post_data
has been deprecated. Use request.body
instead
If someone is using Sequel the migration would look something like:
add_column :products, :price, "decimal(8,2)"
somehow Sequel ignores :precision and :scale
(Sequel Version: sequel (3.39.0, 3.38.0))
I needed to do (the solution in the accepted answer):
git fetch origin
git reset --hard origin/master
Followed by:
git clean -f
To see what files will be removed (without actually removing them):
git clean -n -f
Strings in java are immutable. That means you need to create a new string or overwrite your old string to achieve the desired affect:
id = id.replace(".xml", "");
Hope this can help you!
<input type="button" id="left" value="left" />
<input type="button" id="right" value="right" />
<img src="https://www.google.com/images/srpr/logo3w.png" id="image">
<script>
var angle = 0;
$('#left').on('click', function () {
angle -= 90;
$("#image").rotate(angle);
});
$('#right').on('click', function () {
angle += 90;
$("#image").rotate(angle);
});
</script>
simple solution utilizing feature of swift language that array is value type.
func permutation(chrs: [String], arr: [String], result: inout [[String]]) {
if arr.count == chrs.count {
result.append(arr)
return
}
for chr in chrs {
var arr = arr
if !arr.contains(chr) {
arr.append(chr)
permutation(chrs: chrs, arr: arr, result: &result)
}
}
}
func test() {
var result = [[String]]()
let chrs = ["a", "b", "c", "d"]
permutation(chrs: chrs, arr: [], result: &result)
}
complexity O(n * n!)
I have proposed in StackOverflow question a way to run a batch file in the background (no DOS windows displayed)
That should answer your question.
Here it is:
From your first script, call your second script with the following line:
wscript.exe invis.vbs run.bat %*
Actually, you are calling a vbs script with:
%*
)Then, invis.vbs will call your script with the Windows Script Host Run() method, which takes:
See the question for the full invis.vbs script:
Set WshShell = WScript.CreateObject("WScript.Shell")
WshShell.Run """" & WScript.Arguments(0) & """" & sargs, 0, False
^
means "invisible window" ---|
Update after Tammen's feedback:
If you are in a DOS session and you want to launch another script "in the background", a simple /b
(as detailed in the same aforementioned question) can be enough:
You can use
start /b second.bat
to launch a second batch file asynchronously from your first that shares your first one's window.
Normally one uses the backslash character as the path separator in Windows. So:
ifstream file;
file.open("C:\\Demo.txt", ios::in);
Keep in mind that when written in C++ source code, you must use the double backslash because the backslash character itself means something special inside double quoted strings. So the above refers to the file C:\Demo.txt
.
YES, You can do this on bellow ways:
1. By CrudRepository (Projection)
Spring Data Repositories usually return the domain model when using query methods. However, sometimes, you may need to alter the view of that model for various reasons.
Suppose your entity is like this :
import javax.persistence.*;
import java.math.BigDecimal;
@Entity
@Table(name = "USER_INFO_TEST")
public class UserInfoTest {
private int id;
private String name;
private String rollNo;
public UserInfoTest() {
}
public UserInfoTest(int id, String name) {
this.id = id;
this.name = name;
}
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
@Column(name = "ID", nullable = false, precision = 0)
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
@Basic
@Column(name = "name", nullable = true)
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
@Basic
@Column(name = "roll_no", nullable = true)
public String getRollNo() {
return rollNo;
}
public void setRollNo(String rollNo) {
this.rollNo = rollNo;
}
}
Now your Projection class is like bellow. It can those fields that you needed.
public interface IUserProjection {
int getId();
String getName();
String getRollNo();
}
And Your Data Access Object(Dao) is like bellow
:
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.CrudRepository;
import java.util.ArrayList;
public interface UserInfoTestDao extends CrudRepository<UserInfoTest,Integer> {
@Query(value = "select id,name,roll_no from USER_INFO_TEST where rollNo = ?1", nativeQuery = true)
ArrayList<IUserProjection> findUserUsingRollNo(String rollNo);
}
Now ArrayList<IUserProjection> findUserUsingRollNo(String rollNo)
will give you the list of user.
2. Using EntityManager
Suppose your query is "select id,name from users where roll_no = 1001".
Here query will return a object with id and name column. Your Response class is like bellow:
Your Response class is like:
public class UserObject{
int id;
String name;
String rollNo;
public UserObject(Object[] columns) {
this.id = (columns[0] != null)?((BigDecimal)columns[0]).intValue():0;
this.name = (String) columns[1];
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getRollNo() {
return rollNo;
}
public void setRollNo(String rollNo) {
this.rollNo = rollNo;
}
}
here UserObject constructor will get a Object Array and set data with object.
public UserObject(Object[] columns) {
this.id = (columns[0] != null)?((BigDecimal)columns[0]).intValue():0;
this.name = (String) columns[1];
}
Your query executing function is like bellow :
public UserObject getUserByRoll(EntityManager entityManager,String rollNo) {
String queryStr = "select id,name from users where roll_no = ?1";
try {
Query query = entityManager.createNativeQuery(queryStr);
query.setParameter(1, rollNo);
return new UserObject((Object[]) query.getSingleResult());
} catch (Exception e) {
e.printStackTrace();
throw e;
}
}
Here you have to import bellow packages:
import javax.persistence.Query;
import javax.persistence.EntityManager;
Now your main class, you have to call this function. First get EntityManager and call this getUserByRoll(EntityManager entityManager,String rollNo)
function. Calling procedure is given bellow:
Here is the Imports
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
get EntityManager
from this way:
@PersistenceContext
private EntityManager entityManager;
UserObject userObject = getUserByRoll(entityManager,"1001");
Now you have data in this userObject.
Note:
query.getSingleResult() return a object array. You have to maintain the column position and data type with query column position.
select id,name from users where roll_no = 1001
query return a array and it's [0] --> id and [1] -> name
.
More info visit this thread and this Thread
Thanks :)
**just copy paste this code and run you can see the textbox disabled **
<html xmlns="http://www.w3.org/1999/xhtml">
<head><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Untitled Document</title>
<style>.container{float:left;width:200px;height:25px;position:relative;}
.container input{float:left;width:200px;height:25px;}
.overlay{display:block;width:208px;position:absolute;top:0px;left:0px;height:32px;}
</style>
</head>
<body>
<div class="container">
<input type="text" value="[email protected]" />
<div class="overlay">
</div>
</div>
</body>
</html>
This should get you started:
log4j.rootLogger=QuietAppender, LoudAppender, TRACE
# setup A1
log4j.appender.QuietAppender=org.apache.log4j.RollingFileAppender
log4j.appender.QuietAppender.Threshold=INFO
log4j.appender.QuietAppender.File=quiet.log
...
# setup A2
log4j.appender.LoudAppender=org.apache.log4j.RollingFileAppender
log4j.appender.LoudAppender.Threshold=DEBUG
log4j.appender.LoudAppender.File=loud.log
...
log4j.logger.com.yourpackage.yourclazz=TRACE
When you have two docker images "already" created and you want to put two containers to communicate with one-another.
For that, you can conveniently run each container with its own --name and use the --link flag to enable communication between them. You do not get this during docker build though.
When you are in a scenario like myself, and it is your
docker build -t "centos7/someApp" someApp/
That breaks when you try to
curl http://172.17.0.1:localPort/fileIWouldLikeToDownload.tar.gz > dump.tar.gz
and you get stuck on "curl/wget" returning no "route to host".
The reason is security that is set in place by docker that by default is banning communication from a container towards the host or other containers running on your host. This was quite surprising to me, I must say, you would expect the echosystem of docker machines running on a local machine just flawlessly can access each other without too much hurdle.
The explanation for this is described in detail in the following documentation.
http://www.dedoimedo.com/computers/docker-networking.html
Two quick workarounds are given that help you get moving by lowering down the network security.
The simplest alternative is just to turn the firewall off - or allow all. This means running the necessary command, which could be systemctl stop firewalld, iptables -F or equivalent.
Hope this information helps you.
So I wrote a function that would get the POST data from the php://input stream.
So the challenge here was switching to PUT, DELETE OR PATCH request method, and still obtain the post data that was sent with that request.
I'm sharing this maybe for someone with a similar challenge. The function below is what I came up with and it works. I hope it helps!
/**
* @method Post getPostData
* @return array
*
* Convert Content-Disposition to a post data
*/
function getPostData() : array
{
// @var string $input
$input = file_get_contents('php://input');
// continue if $_POST is empty
if (strlen($input) > 0 && count($_POST) == 0 || count($_POST) > 0) :
$postsize = "---".sha1(strlen($input))."---";
preg_match_all('/([-]{2,})([^\s]+)[\n|\s]{0,}/', $input, $match);
// update input
if (count($match) > 0) $input = preg_replace('/([-]{2,})([^\s]+)[\n|\s]{0,}/', '', $input);
// extract the content-disposition
preg_match_all("/(Content-Disposition: form-data; name=)+(.*)/m", $input, $matches);
// let's get the keys
if (count($matches) > 0 && count($matches[0]) > 0)
{
$keys = $matches[2];
foreach ($keys as $index => $key) :
$key = trim($key);
$key = preg_replace('/^["]/','',$key);
$key = preg_replace('/["]$/','',$key);
$key = preg_replace('/[\s]/','',$key);
$keys[$index] = $key;
endforeach;
$input = preg_replace("/(Content-Disposition: form-data; name=)+(.*)/m", $postsize, $input);
$input = preg_replace("/(Content-Length: )+([^\n]+)/im", '', $input);
// now let's get key value
$inputArr = explode($postsize, $input);
// @var array $values
$values = [];
foreach ($inputArr as $index => $val) :
$val = preg_replace('/[\n]/','',$val);
if (preg_match('/[\S]/', $val)) $values[$index] = trim($val);
endforeach;
// now combine the key to the values
$post = [];
// @var array $value
$value = [];
// update value
foreach ($values as $i => $val) $value[] = $val;
// push to post
foreach ($keys as $x => $key) $post[$key] = isset($value[$x]) ? $value[$x] : '';
if (is_array($post)) :
$newPost = [];
foreach ($post as $key => $val) :
if (preg_match('/[\[]/', $key)) :
$k = substr($key, 0, strpos($key, '['));
$child = substr($key, strpos($key, '['));
$child = preg_replace('/[\[|\]]/','', $child);
$newPost[$k][$child] = $val;
else:
$newPost[$key] = $val;
endif;
endforeach;
$_POST = count($newPost) > 0 ? $newPost : $post;
endif;
}
endif;
// return post array
return $_POST;
}
ddList.Items.FindByText("oldValue").Selected = false;
ddList.Items.FindByText("newValue").Selected = true;
I have the same problem, i read the url with an properties file:
String configFile = System.getenv("system.Environment");
if (configFile == null || "".equalsIgnoreCase(configFile.trim())) {
configFile = "dev.properties";
}
// Load properties
Properties properties = new Properties();
properties.load(getClass().getResourceAsStream("/" + configFile));
//read url from file
apiUrl = properties.getProperty("url").trim();
URL url = new URL(apiUrl);
//throw exception here
URLConnection conn = url.openConnection();
dev.properties
url = "https://myDevServer.com/dev/api/gate"
it should be
dev.properties
url = https://myDevServer.com/dev/api/gate
without "" and my problem is solved.
According to oracle documentation
- Thrown to indicate that a malformed URL has occurred. Either no legal protocol could be found in a specification string or the string could not be parsed.
So it means it is not parsed inside the string.
This is the example of dynamic Form controls generated from server.
https://stackblitz.com/edit/angular-t3mmg6
This example is dynamic Form controls is in add component (This is where you can get the Formcontrols from the server). If you see addcomponent method you can see the Forms Controls. In this example I am not using angular material,but It works (I am using @ work). This is target to angular 6, but works in all previous version.
Need to add JITComplierFactory for AngularVersion 5 and above.
Thanks
Vijay
As DPA says, the easiest way to generate a war file of your project is through the IDE. Open the Files tab from your left hand panel, right click on the build.xml file and tell it what type of ant target you want to run.
Yes it is possible in Sony ericssion xylophone w20 .I have got this phone in 2010.but yet this type of phone I have not seen.
Here, the '\n'
left by cin, is creating issues.
do {
system("cls");
manageCustomerMenu();
cin >> choice; #This cin is leaving a trailing \n
system("cls");
switch (choice) {
case '1':
createNewCustomer();
break;
This \n
is being consumed by next getline in createNewCustomer()
. You should use getline instead -
do {
system("cls");
manageCustomerMenu();
getline(cin, choice)
system("cls");
switch (choice) {
case '1':
createNewCustomer();
break;
I think this would resolve the issue.
Scroll down on that page and you'll see:
Express with Tools (with LocalDB) Includes the database engine and SQL Server Management Studio Express)
This package contains everything needed to install and configure SQL Server as a database server. Choose either LocalDB or Express depending on your needs above.
That's the SQLEXPRWT_x64_ENU.exe
download.... (WT = with tools)
Express with Advanced Services (contains the database engine, Express Tools, Reporting Services, and Full Text Search)
This package contains all the components of SQL Express. This is a larger download than “with Tools,” as it also includes both Full Text Search and Reporting Services.
That's the SQLEXPRADV_x64_ENU.exe
download ... (ADV = Advanced Services)
The SQLEXPR_x64_ENU.exe
file is just the database engine - no tools, no Reporting Services, no fulltext-search - just barebones engine.
For those who may be running WAMP 3.1.4 with Apache 2.4.35 on Windows 10 (64-bit)
If you're having issues with external devices connecting to your localhost, and receiving a 403 Forbidden error, it may be an issue with your httpd.conf and the httpd-vhosts.conf files and the "Require local" line they both have within them.
[Before] httpd-vhosts.conf
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www/">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
Require local <--- This is the offending line.
</Directory>
</VirtualHost>
[After] httpd-vhosts.conf
<VirtualHost *:80>
ServerName localhost
ServerAlias localhost
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www/">
Options +Indexes +Includes +FollowSymLinks +MultiViews
AllowOverride All
</Directory>
</VirtualHost>
Additionally, you'll need to update your httpd.conf file as follows:
[Before] httpd.conf
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www/">
# onlineoffline tag - don't remove
Require local #<--- This is the offending line.
</Directory>
[After] httpd.conf
DocumentRoot "${INSTALL_DIR}/www"
<Directory "${INSTALL_DIR}/www/">
# onlineoffline tag - don't remove
# Require local
</Directory>
Make sure to restart your WAMP server via (System tray at bottom-right of screen --> left-click WAMP icon --> "Restart all Services").
Then refresh your machine's browser on localhost to ensure you've still got proper connectivity there, and then refresh your other external devices that you were previously attempting to connect.
Disclaimer: If you're in a corporate setting, this is untested from a security perspective; please ensure you're keenly aware of your local development environment's access protocols before implementing any sweeping changes.
Of course, Yes. Use this simple file in your project: https://gist.github.com/3851727
First add you HTML like this:
<div id="messagebox" class="alert hide"></div>
and then use:
$("#messagebox").message({text: "Hello world!", type: "error"});
You can pass all bootstrap alert types such as error
, success
and warning
to type
property as options.
When you create an new web application using visual studio.net, it automatically creates the virtual directory and configures it as an application. However, if you manually create the virtual directory and it is not configured as an application, then you will not be able to browse the application and may get the above error.
I decide to publish my example that I used in my case. I tried to replace content in div using a script. My problem was that Chrome did not recognized / did not run that script.
In more detail What I wanted to do: To click on a link, and that link to "read" an external html file, that it will be loaded in a div section.
The script must be coded using document.addEventListener('DOMContentLoaded', function() as it was told
<body>
<a id=id_page href ="#loving" onclick="load_services()"> loving </a>
<script>
// This script MUST BE under the "ID" that is calling
// Do not transfer it to a differ DIV than the caller "ID"
document.getElementById("id_page").addEventListener("click", function(){
document.getElementById("mainbody").innerHTML = '<object data="Services.html" class="loving_css_edit"; ></object>'; });
</script>
</body>
<div id="mainbody" class="main_body">
"here is loaded the external html file when the loving link will
be clicked. "
</div>
The code itself is working correctly. The problem is, that the program working path is pointing to other place than you think.
Use this line and see where the path is:
System.out.println(new File(".").getAbsoluteFile());
Those who are looking to implement pull to refresh functionality for RecyclerView can following my simple tutorial How to implement Pull To Refresh for RecyclerView in Android.
Libraries To Import
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'androidx.gridlayout:gridlayout:1.0.0'
XML Code
<androidx.swiperefreshlayout.widget.SwipeRefreshLayout
android:id="@+id/swipe_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
Activity JAVA Code
import androidx.appcompat.app.AppCompatActivity;
import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
import android.os.Bundle;
import android.os.Handler;
public class MainActivity extends AppCompatActivity {
private SwipeRefreshLayout swipeRefreshLayout;
...
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
swipeRefreshLayout = findViewById(R.id.swipe_layout);
initializeRefreshListener();
}
void initializeRefreshListener() {
swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
@Override
public void onRefresh() {
// This method gets called when user pull for refresh,
// You can make your API call here,
// We are using adding a delay for the moment
final Handler handler = new Handler();
handler.postDelayed(new Runnable() {
@Override
public void run() {
if(swipeRefreshLayout.isRefreshing()) {
swipeRefreshLayout.setRefreshing(false);
}
}
}, 3000);
}
});
}
In summary, two ways were introduced
1) using order by DBMS_RANDOM.VALUE clause
2) using sample([%]) function
The first way has advantage in 'CORRECTNESS' which means you will never fail get result if it actually exists, while in the second way you may get no result even though it has cases satisfying the query condition since information is reduced during sampling.
The second way has advantage in 'EFFICIENT' which mean you will get result faster and give light load to your database. I was given an warning from DBA that my query using the first way gives loads to the database
You can choose one of two ways according to your interest!
using System;
public class EnumTest
{
enum Days {Sat=1, Sun, Mon, Tue, Wed, Thu, Fri};
static void Main()
{
int x = (int)Days.Sun;
int y = (int)Days.Fri;
Console.WriteLine("Sun = {0}", x);
Console.WriteLine("Fri = {0}", y);
}
}
Also you can try to use
@JsonSerialize(include=JsonSerialize.Inclusion.NON_NULL)
if you are dealing with jackson with version below 2+ (1.9.5) i tested it, you can easily use this annotation above the class. Not for specified for the attributes, just for class decleration.
Localhost is the computer you're using right now. You run things by typing commands at the command prompt and pressing Enter. If you're asking how to run things from your programming environment, then the answer depends on which environment you're using. Most languages have commands with names like system
or exec
for running external programs. You need to be more specific about what you're actually looking to do, and what obstacles you've encountered while trying to achieve it.
I had this issue too on a project I'd just checked out from source control.
The symptom was the error described above and a yellow warning triangle on a reference to System.Net.Http.Formatting
To fix this, I removed the broken reference and then used NuGet to install the latest version of Microsoft.AspNet.WebApi.Client
.