Gigablast offers a cheap web search API: http://www.gigablast.com/searchfeed.html
str.strip
is the best approach for this situation, but more_itertools.strip
is also a general solution that strips both leading and trailing elements from an iterable:
Code
import more_itertools as mit
iterables = ["231512-n\n"," 12091231000-n00000","alphanum0000", "00alphanum"]
pred = lambda x: x in {"0", "\n", " "}
list("".join(mit.strip(i, pred)) for i in iterables)
# ['231512-n', '12091231000-n', 'alphanum', 'alphanum']
Details
Notice, here we strip both leading and trailing "0"
s among other elements that satisfy a predicate. This tool is not limited to strings.
See also docs for more examples of
more_itertools.strip
: strip both endsmore_itertools.lstrip
: strip the left endmore_itertools.rstrip
: strip the right endmore_itertools
is a third-party library installable via > pip install more_itertools
.
this can be achieved with the css calc()
operator
@media screen and (min-width: 480px) {
body {
background-color: lightgreen;
zoom:calc(100% / 480);
}
}
You can't modify the default dialogue for onbeforeunload
, so your best bet may be to work with it.
window.onbeforeunload = function() {
return 'You have unsaved changes!';
}
Here's a reference to this from Microsoft:
When a string is assigned to the returnValue property of window.event, a dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in the dialog box, "Are you sure you want to navigate away from this page? ... Press OK to continue, or Cancel to stay on the current page.", cannot be removed or altered.
The problem seems to be:
onbeforeunload
is called, it will take the return value of the handler as window.event.returnValue
.false
is parsed as a string, the dialogue box will fire, which will then pass an appropriate true
/false
.The result is, there doesn't seem to be a way of assigning false
to onbeforeunload
to prevent it from the default dialogue.
Additional notes on jQuery:
onbeforeunload
events to occur as well. If you wish only for your unload event to occur I'd stick to plain ol' JavaScript for it.jQuery doesn't have a shortcut for onbeforeunload
so you'd have to use the generic bind
syntax.
$(window).bind('beforeunload', function() {} );
Edit 09/04/2018: custom messages in onbeforeunload dialogs are deprecated since chrome-51 (cf: release note)
You must sort your data according your needs (es. in reverse order) and use select top query
My SetUp:
Spring Boot v1.5.10
Hikari v.3.2.x (for evaluation)
To really understand the configuration of Hikari Data Source, I recommend to disable Spring Boot's Auto-Configuration for Data Source.
Add following to application.properties:-
spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration
This will disable Spring Boot's capability to configure the DataSource on its own.
Now is the chance for you to define your own Custom Configuration to create HikariDataSource bean and populate it with the desired properties.
NOTE :::
public class HikariDataSource extends HikariConfig
You need to
I believe in defining my own Custom Configuration class ( @Configuration ) to create the data source on my own and populate it with the data source properties defined in a separate file (than traditional: application.properties)
In this manner I can define my own sessionFactory Bean using Hibernate recommended: "LocalSessionFactoryBean" class and populate it with your Hikari Data Source > and other Hiberante-JPA based properties.
Summary of Spring Boot based Hikari DataSource Properties:-
spring.datasource.hikari.allow-pool-suspension=true
spring.datasource.hikari.auto-commit=false
spring.datasource.hikari.catalog=
spring.datasource.hikari.connection-init-sql=
spring.datasource.hikari.connection-test-query=
spring.datasource.hikari.connection-timeout=100
spring.datasource.hikari.data-source-class-name=
spring.datasource.hikari.data-source-j-n-d-i=
spring.datasource.hikari.driver-class-name=
spring.datasource.hikari.idle-timeout=50
spring.datasource.hikari.initialization-fail-fast=true
spring.datasource.hikari.isolate-internal-queries=true
spring.datasource.hikari.jdbc-url=
spring.datasource.hikari.leak-detection-threshold=
spring.datasource.hikari.login-timeout=60
spring.datasource.hikari.max-lifetime=
spring.datasource.hikari.maximum-pool-size=500
spring.datasource.hikari.minimum-idle=30
spring.datasource.hikari.password=
spring.datasource.hikari.pool-name=
spring.datasource.hikari.read-only=true
spring.datasource.hikari.register-mbeans=true
spring.datasource.hikari.transaction-isolation=
spring.datasource.hikari.username=
spring.datasource.hikari.validation-timeout=
Usually, we define classes for this.
class XClass( object ):
def __init__( self ):
self.myAttr= None
x= XClass()
x.myAttr= 'magic'
x.myAttr
However, you can, to an extent, do this with the setattr
and getattr
built-in functions. However, they don't work on instances of object
directly.
>>> a= object()
>>> setattr( a, 'hi', 'mom' )
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'object' object has no attribute 'hi'
They do, however, work on all kinds of simple classes.
class YClass( object ):
pass
y= YClass()
setattr( y, 'myAttr', 'magic' )
y.myAttr
Representation is the same, the meaning is different. e.g, 0xFF, it both represented as "FF". When it is treated as "char", it is negative number -1; but it is 255 as unsigned. When it comes to bit shifting, it is a big difference since the sign bit is not shifted. e.g, if you shift 255 right 1 bit, it will get 127; shifting "-1" right will be no effect.
Try this:
<input type="number" max="???" min="???" step="0.5" id="myInput"/>
$("#myInput").attr({
"max" : 10,
"min" : 2
});
Note:This will set max and min value only to single input
Use org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider
API
A component provider that scans the classpath from a base package. It then applies exclude and include filters to the resulting classes to find candidates.
ClassPathScanningCandidateComponentProvider scanner =
new ClassPathScanningCandidateComponentProvider(<DO_YOU_WANT_TO_USE_DEFALT_FILTER>);
scanner.addIncludeFilter(new AnnotationTypeFilter(<TYPE_YOUR_ANNOTATION_HERE>.class));
for (BeanDefinition bd : scanner.findCandidateComponents(<TYPE_YOUR_BASE_PACKAGE_HERE>))
System.out.println(bd.getBeanClassName());
Just add
model.addAttribute("login", new Login());
to your method ..
it will work..
Device: iPad Mini
OS: iOS 9 Beta 3
App downloaded from: Hockey App
Provisioning profile with Trust issues: Enterprise
In my case, when I navigate to Settings > General > Profiles, I could not see on any Apple provisioning profile. All I could see is a Configuration Profile which is HockeyApp Config.
Here are the steps that I followed:
That's it! You're done! You can now go back to your app and open it successfully. Hope this helped. :)
echo "echo "we are now going to work with ${ser}" " >> $servfile
Escape all " within quotes with \. Do this with variables like \$servicetest too:
echo "echo \"we are now going to work with \${ser}\" " >> $servfile
echo "read -p \"Please enter a service: \" ser " >> $servfile
echo "if [ \$servicetest > /dev/null ];then " >> $servfile
var jsonString = `{
"schema": {
"title": "User Feedback",
"description": "so",
"type": "object",
"properties": {
"name": {
"type": "string"
}
}
},
"options": {
"form": {
"attributes": {},
"buttons": {
"submit": {
"title": "It",
"click": "function(){alert('hello');}"
}
}
}
}
}`;
var jsonData = JSON.parse(jsonString);
function Iterate(data)
{
jQuery.each(data, function (index, value) {
if (typeof value == 'object') {
alert("Object " + index);
Iterate(value);
}
else {
alert(index + " : " + value);
}
});
}
Iterate(jsonData);
_x000D_
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
_x000D_
Using case
#!/bin/bash
fun1 () {
echo "run function1"
[[ "$@" ]] && echo "options: $@"
}
fun2 () {
echo "run function2"
[[ "$@" ]] && echo "options: $@"
}
case $1 in
fun1) "$@"; exit;;
fun2) "$@"; exit;;
esac
fun1
fun2
This script will run functions fun1 and fun2 but if you start it with option fun1 or fun2 it'll only run given function with args(if provided) and exit. Usage
$ ./test
run function1
run function2
$ ./test fun2 a b c
run function2
options: a b c
use
%cd SwitchFrequencyAnalysis
to change the current working directory for the notebook environment (and not just the subshell that runs your ! command).
you can confirm it worked with the pwd
command like this:
!pwd
further information about jupyter / ipython magics: http://ipython.readthedocs.io/en/stable/interactive/magics.html#magic-cd
Can't believe this thread was going on for so long. You would get this error if you got distracted and used [] instead of (), at least my case.
Pop is a method on the list data type, https://docs.python.org/2/tutorial/datastructures.html#more-on-lists
Therefore, you shouldn't be using pop as if it was a list itself, pop[0]. It's a method that takes an optional parameter representing an index, so as Tushar Palawat pointed out in one of the answers that didn't get approved, the correct adjustment which will fix the example above is:
listb.pop(0)
If you don't believe, run a sample such as:
if __name__ == '__main__':
listb = ["-test"]
if( listb[0] == "-test"):
print(listb.pop(0))
Other adjustments would work as well, but it feels as they are abusing the Python language. This thread needs to get fixed, not to confuse users.
Addition, a.pop() removes and returns the last item in the list. As a result, a.pop()[0] will get the first character of that last element. It doesn't seem that is what the given code snippet is aiming to achieve.
This should do it:
Object.keys(a).length
However, Object.keys
is not supported in IE8 and below, Opera and FF 3.6 and below.
Live demo: http://jsfiddle.net/simevidas/nN84h/
You will save yourself a heap of trouble (long term) if you store a ZIP Code as a character string, which it is, rather than a number, which it is not.
You want to put code in the master page code behind that inserts HTML into the contents of a page that is using that master page?
I would not search for the control via FindControl as this is a fragile solution that could easily be broken if the name of the control changed.
Your best bet is to declare an event in the master page that any child page could handle. The event could pass the HTML as an EventArg.
I spent a lot of time to use SerialPort class and has concluded to use SerialPort.BaseStream class instead. You can see source code: SerialPort-source and SerialPort.BaseStream-source for deep understanding. I created and use code that shown below.
The core function
public int Recv(byte[] buffer, int maxLen)
has name and works like "well known" socket's recv()
.
It means that
TimeoutException
.maxLen
bytes .
public class Uart : SerialPort
{
private int _receiveTimeout;
public int ReceiveTimeout { get => _receiveTimeout; set => _receiveTimeout = value; }
static private string ComPortName = "";
/// <summary>
/// It builds PortName using ComPortNum parameter and opens SerialPort.
/// </summary>
/// <param name="ComPortNum"></param>
public Uart(int ComPortNum) : base()
{
base.BaudRate = 115200; // default value
_receiveTimeout = 2000;
ComPortName = "COM" + ComPortNum;
try
{
base.PortName = ComPortName;
base.Open();
}
catch (UnauthorizedAccessException ex)
{
Console.WriteLine("Error: Port {0} is in use", ComPortName);
}
catch (Exception ex)
{
Console.WriteLine("Uart exception: " + ex);
}
} //Uart()
/// <summary>
/// Private property returning positive only Environment.TickCount
/// </summary>
private int _tickCount { get => Environment.TickCount & Int32.MaxValue; }
/// <summary>
/// It uses SerialPort.BaseStream rather SerialPort functionality .
/// It Receives up to maxLen number bytes of data,
/// Or throws TimeoutException if no any data arrived during ReceiveTimeout.
/// It works likes socket-recv routine (explanation in body).
/// Returns:
/// totalReceived - bytes,
/// TimeoutException,
/// -1 in non-ComPortNum Exception
/// </summary>
/// <param name="buffer"></param>
/// <param name="maxLen"></param>
/// <returns></returns>
public int Recv(byte[] buffer, int maxLen)
{
/// The routine works in "pseudo-blocking" mode. It cycles up to first
/// data received using BaseStream.ReadTimeout = TimeOutSpan (2 ms).
/// If no any message received during ReceiveTimeout property,
/// the routine throws TimeoutException
/// In other hand, if any data has received, first no-data cycle
/// causes to exit from routine.
int TimeOutSpan = 2;
// counts delay in TimeOutSpan-s after end of data to break receive
int EndOfDataCnt;
// pseudo-blocking timeout counter
int TimeOutCnt = _tickCount + _receiveTimeout;
//number of currently received data bytes
int justReceived = 0;
//number of total received data bytes
int totalReceived = 0;
BaseStream.ReadTimeout = TimeOutSpan;
//causes (2+1)*TimeOutSpan delay after end of data in UART stream
EndOfDataCnt = 2;
while (_tickCount < TimeOutCnt && EndOfDataCnt > 0)
{
try
{
justReceived = 0;
justReceived = base.BaseStream.Read(buffer, totalReceived, maxLen - totalReceived);
totalReceived += justReceived;
if (totalReceived >= maxLen)
break;
}
catch (TimeoutException)
{
if (totalReceived > 0)
EndOfDataCnt--;
}
catch (Exception ex)
{
totalReceived = -1;
base.Close();
Console.WriteLine("Recv exception: " + ex);
break;
}
} //while
if (totalReceived == 0)
{
throw new TimeoutException();
}
else
{
return totalReceived;
}
} // Recv()
} // Uart
Your ApplicationConfig should register the MultiPartFeature.class from the glassfish.jersey.media.. so as to enable file upload
@javax.ws.rs.ApplicationPath(ResourcePath.API_ROOT)
public class ApplicationConfig extends ResourceConfig {
public ApplicationConfig() {
//register the necessary headers files needed from client
register(CORSConfigurationFilter.class);
//The jackson feature and provider is used for object serialization
//between client and server objects in to a json
register(JacksonFeature.class);
register(JacksonProvider.class);
//Glassfish multipart file uploader feature
register(MultiPartFeature.class);
//inject and registered all resources class using the package
//not to be tempered with
packages("com.flexisaf.safhrms.client.resources");
register(RESTRequestFilter.class);
}
Try this
SELECT CONCAT('"',GROUP_CONCAT(id),'"') FROM table_level
where parent_id=4 group by parent_id;
Result will be
"5,6,9,10,12,14,15,17,18,779"
What allowed me to fix the problem was going to: Project -> Properties -> C/C++ General -> Preprocessor Include Paths, Macros, etc. -> Providers -> CDT GCC built-in compiler settings, enabling that and disabling the CDT Cross GCC Built-in Compiler Settings
By this you can get any index in *ngFor
loop in ANGULAR ...
<ul>
<li *ngFor="let object of myArray; let i = index; let first = first ;let last = last;">
<div *ngIf="first">
// write your code...
</div>
<div *ngIf="last">
// write your code...
</div>
</li>
</ul>
We can use these alias in *ngFor
index
: number
: let i = index
to get all index of object.first
: boolean
: let first = first
to get first index of object.last
: boolean
: let last = last
to get last index of object.odd
: boolean
: let odd = odd
to get odd index of object.even
: boolean
: let even = even
to get even index of object.Route your path, and take the params
, and return:
redirect_to controller: "client", action: "get_name", params: request.query_parameters and return
I like to have a method in my activity called showToast
which I can call from anywhere...
public void showToast(final String toast)
{
runOnUiThread(() -> Toast.makeText(MyActivity.this, toast, Toast.LENGTH_SHORT).show());
}
I then most frequently call it from within MyActivity
on any thread like this...
showToast(getString(R.string.MyMessage));
1 << ADDR_WIDTH
means 1 will be shifted 8 bits to the left and will be assigned as the value for RAM_DEPTH
.
In addition, 1 << ADDR_WIDTH
also means 2^ADDR_WIDTH.
Given ADDR_WIDTH = 8
, then 2^8 = 256
and that will be the value for RAM_DEPTH
You should set body
and html
to position:fixed;
, and then set right:
, left:
, top:
, and bottom:
to 0;
. That way, even if content overflows it will not extend past the limits of the viewport.
For example:
<html>
<body>
<div id="wrapper"></div>
</body>
</html>
CSS:
html, body, {
position:fixed;
top:0;
bottom:0;
left:0;
right:0;
}
Caveat: Using this method, if the user makes their window smaller, content will be cut off.
You use the available API of JTable
and do not try to mess with the colors.
Some selection methods are available directly on the JTable
(like the setRowSelectionInterval
). If you want to have access to all selection-related logic, the selection model is the place to start looking
Yes, that's possible, albeit not literally the <td>
, but what's in it. The simple trick is, to make sure that the content extends to the borders of the cell (it won't include the borders itself though).
As already explained, this isn't semantically correct. An a
element is an inline element and should not be used as block-level element. However, here's an example (but JavaScript plus a td:hover CSS style will be much neater) that works in most browsers:
<td>
<a href="http://example.com">
<div style="height:100%;width:100%">
hello world
</div>
</a>
</td>
PS: it's actually neater to change a
in a block-level element using CSS as explained in another solution in this thread. it won't work well in IE6 though, but that's no news ;)
If your world is only Internet Explorer (rare, nowadays), you can violate the HTML standard and write this, it will work as expected, but will be highly frowned upon and be considered ill-advised (you haven't heard this from me). Any other browser than IE will not render the link, but will show the table correctly.
<table>
<tr>
<a href="http://example.com"><td width="200">hello world</td></a>
</tr>
</table>
There are a few ways to do this.
You could use type="number"
:
<input type="number" />
Alternatively - I created a reuseable directive for this that uses a regular expression.
Html
<div ng-app="myawesomeapp">
test: <input restrict-input="^[0-9-]*$" maxlength="20" type="text" class="test" />
</div>
Javascript
;(function(){
var app = angular.module('myawesomeapp',[])
.directive('restrictInput', [function(){
return {
restrict: 'A',
link: function (scope, element, attrs) {
var ele = element[0];
var regex = RegExp(attrs.restrictInput);
var value = ele.value;
ele.addEventListener('keyup',function(e){
if (regex.test(ele.value)){
value = ele.value;
}else{
ele.value = value;
}
});
}
};
}]);
}());
The following worked for me.
array.slice( where_to_start_deleting, array.length )
Here is an example
var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.slice(2, fruits.length);
//Banana,Orange ->These first two we get as resultant
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.1.0'
implementation 'androidx.appcompat:appcompat:1.1.0-alpha01'
implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'androidx.test.ext:junit:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
implementation 'com.android.volley:volley:1.1.1'
}
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
import com.android.volley.Request
import com.android.volley.Response
import com.android.volley.toolbox.JsonObjectRequest
import com.android.volley.toolbox.Volley
fun peticion(){
val jsonObject = JSONObject()
jsonObject.put("user", "jairo")
jsonObject.put("password", "1234")
val queue = Volley.newRequestQueue(this)
val url = "http://192.168.0.3/get_user.php"
// GET: JsonObjectRequest( url, null,
// POST: JsonObjectRequest( url, jsonObject,
val jsonObjectRequest = JsonObjectRequest( url, jsonObject,
Response.Listener { response ->
// Check if the object 'msm' does not exist
if(response.isNull("msm")){
println("Name: "+response.getString("nombre1"))
}
else{
// If the object 'msm' exists we print it
println("msm: "+response.getString("msm"))
}
},
Response.ErrorListener { error ->
error.printStackTrace()
println(error.toString())
}
)
queue.add(jsonObjectRequest)
}
<?php
header("Access-Control-Allow-Origin: *");
header("Access-Control-Allow-Headers: *");
// we receive the parameters
$json = file_get_contents('php://input');
$params = json_decode($json);
error_reporting(0);
require_once 'conexion.php';
$mysqli=getConex();
$user=$params->user;
$password=$params->password;
$res=array();
$verifica_usuario=mysqli_query($mysqli,"SELECT * FROM usuarios WHERE usuario='$user' and clave='$password'");
if(mysqli_num_rows($verifica_usuario)>0){
$query="SELECT * FROM usuarios WHERE usuario='$user'";
$result=$mysqli->query($query);
while($row = $result->fetch_array(MYSQLI_ASSOC)){
$res=$row;
}
}
else{
$res=array('msm'=>"Incorrect user or password");
}
$jsonstring = json_encode($res);
header('Content-Type: application/json');
echo $jsonstring;
?>
<?php
function getConex(){
$servidor="localhost";
$usuario="root";
$pass="";
$base="db";
$mysqli = mysqli_connect($servidor,$usuario,$pass,$base);
if (mysqli_connect_errno($mysqli)){
echo "Fallo al conectar a MySQL: " . mysqli_connect_error();
}
$mysqli->set_charset('utf8');
return $mysqli;
}
?>
You have a class on your CSS that is overwriting your width and height, the class reads as such:
.postItem img {
height: auto;
width: 450px;
}
Remove that and your width/height properties on the img
tag should work.
You may be able to simply access a pre-arranged file path on the system. This is preferable since files added to the webapp directory might be lost or the webapp may not be unpacked depending on system configuration.
In our server, we define a system property set in the App Server's JVM which points to the "home directory" for our app's external data. Of course this requires modification of the App Server's configuration (-DAPP_HOME=... added to JVM_OPTS at startup), we do it mainly to ease testing of code run outside the context of an App Server.
You could just as easily retrieve a path from the servlet config:
<web-app>
<context-param>
<param-name>MyAppHome</param-name>
<param-value>/usr/share/myapp</param-value>
</context-param>
...
</web-app>
Then retrieve this path and use it as the base path to read the file supplied by the client.
public class MyAppConfig implements ServletContextListener {
// NOTE: static references are not a great idea, shown here for simplicity
static File appHome;
static File customerDataFile;
public void contextInitialized(ServletContextEvent e) {
appHome = new File(e.getServletContext().getInitParameter("MyAppHome"));
File customerDataFile = new File(appHome, "SuppliedFile.csv");
}
}
class DataProcessor {
public void processData() {
File dataFile = MyAppConfig.customerDataFile;
// ...
}
}
As I mentioned the most likely problem you'll encounter is security restrictions. Nothing guarantees webapps can ready any files above their webapp root. But there are generally simple methods for granting exceptions for specific paths to specific webapps.
Regardless of the code in which you then need to access this file, since you are running within a web application you are guaranteed this is initialized first, and can stash it's value somewhere convenient for the rest of your code to refer to, as in my example or better yet, just simply pass the path as a paramete to the code which needs it.
try parsing a default value which can be returned by max if length of v none
max(v, default=0)
In CSS:
textarea {
border-style: none;
border-color: Transparent;
overflow: auto;
}
Here is an example from my HOW TO Matlab page:
close all; clear all;
img = imread('lena.tif','tif');
imagesc(img)
img = fftshift(img(:,:,2));
F = fft2(img);
figure;
imagesc(100*log(1+abs(fftshift(F)))); colormap(gray);
title('magnitude spectrum');
figure;
imagesc(angle(F)); colormap(gray);
title('phase spectrum');
This gives the magnitude spectrum and phase spectrum of the image. I used a color image, but you can easily adjust it to use gray image as well.
ps. I just noticed that on Matlab 2012a the above image is no longer included. So, just replace the first line above with say
img = imread('ngc6543a.jpg');
and it will work. I used an older version of Matlab to make the above example and just copied it here.
On the scaling factor
When we plot the 2D Fourier transform magnitude, we need to scale the pixel values using log transform to expand the range of the dark pixels into the bright region so we can better see the transform. We use a c
value in the equation
s = c log(1+r)
There is no known way to pre detrmine this scale that I know. Just need to
try different values to get on you like. I used 100
in the above example.
In fragments, you can use
getActivity().getString(R.id.whatever);
You need to add a reference to the .NET assembly System.Data.Entity.dll.
You can do the HTML parsing but it is not at all recommended instead ask the website owners to provide web services then you can parse that information.
Can you predict how long the user input would be?
VARCHAR(X)
Max Length: variable, up to 65,535 bytes (64KB)
Case: user name, email, country, subject, password
TEXT
Max Length: 65,535 bytes (64KB)
Case: messages, emails, comments, formatted text, html, code, images, links
MEDIUMTEXT
Max Length: 16,777,215 bytes (16MB)
Case: large json bodies, short to medium length books, csv strings
LONGTEXT
Max Length: 4,294,967,29 bytes (4GB)
Case: textbooks, programs, years of logs files, harry potter and the goblet of fire, scientific research logging
There's more information on this question.
Container
is itself a template with two type parameters.
You can escape (this is how this principle is called) the double quotes by prefixing them with another double quote. You can put them in a string as follows:
Dim MyVar as string = "some text ""hello"" "
This will give the MyVar
variable a value of some text "hello"
.
To also highlight the menu item when one of the child pages is active, also check for the other class (current-page-ancestor
) like below:
add_filter('nav_menu_css_class' , 'special_nav_class' , 10 , 2);
function special_nav_class ($classes, $item) {
if (in_array('current-page-ancestor', $classes) || in_array('current-menu-item', $classes) ){
$classes[] = 'active ';
}
return $classes;
}
I resolved a similar problem by border-color: inherit
, see:
<li style="border-color: <?php echo $hex ?>;">...</li>
li {
border-width: 0;
}
li:before {
content: '';
display: inline-block;
float: none;
margin-right: 10px;
border-width: 4px;
border-style: solid;
border-color: inherit;
}
As you use Joda Time, you should use DateTimeFormatter
:
final DateTimeFormatter dtf = DateTimeFormatter.ofPattern("yyyy-MMM-dd");
final LocalDate dt = dtf.parseLocalDate(yourinput);
If using Java 8 or later, then refer to hertzi's answer
Use $dec = $null
From the documentation:
$null is an automatic variable that contains a NULL or empty value. You can use this variable to represent an absent or undefined value in commands and scripts.
PowerShell treats $null as an object with a value, that is, as an explicit placeholder, so you can use $null to represent an empty value in a series of values.
The way to do it is to pass the tasks a callback that updates a shared counter. When the shared counter reaches zero you know that all tasks have finished so you can continue with your normal flow.
var ntasks_left_to_go = 4;
var callback = function(){
ntasks_left_to_go -= 1;
if(ntasks_left_to_go <= 0){
console.log('All tasks have completed. Do your stuff');
}
}
task1(callback);
task2(callback);
task3(callback);
task4(callback);
Of course, there are many ways to make this kind of code more generic or reusable and any of the many async programing libraries out there should have at least one function to do this kind of thing.
getPathInfo()
gives the extra path information after the URI, used to access your Servlet, where as getRequestURI()
gives the complete URI.
I would have thought they would be different, given a Servlet must be configured with its own URI pattern in the first place; I don't think I've ever served a Servlet from root (/).
For example if Servlet 'Foo' is mapped to URI '/foo' then I would have thought the URI:
/foo/path/to/resource
Would result in:
RequestURI = /foo/path/to/resource
and
PathInfo = /path/to/resource
I found useful debugging information on an Ubuntu 16.04 server by running:
systemctl status cron.service
In my case I was kindly informed I had left a comment '#' off of a remark line:
Aug 18 19:12:01 is-feb19 cron[14307]: Error: bad minute; while reading /etc/crontab
Aug 18 19:12:01 is-feb19 cron[14307]: (*system*) ERROR (Syntax error, this crontab file will be ignored)
In Oracle, something like this works nicely to separate your counting and ordering a little better. I'm not sure if it will work in MySql 4.
select 'Tag', counts.cnt
from
(
select count(*) as cnt, 'Tag'
from 'images-tags'
group by 'tag'
) counts
order by counts.cnt desc
Here is pythonic way to do it. This function will allow you to loop through key-value pair in all the levels. It does not save the whole thing to the memory but rather walks through the dict as you loop through it
def recursive_items(dictionary):
for key, value in dictionary.items():
if type(value) is dict:
yield (key, value)
yield from recursive_items(value)
else:
yield (key, value)
a = {'a': {1: {1: 2, 3: 4}, 2: {5: 6}}}
for key, value in recursive_items(a):
print(key, value)
Prints
a {1: {1: 2, 3: 4}, 2: {5: 6}}
1 {1: 2, 3: 4}
1 2
3 4
2 {5: 6}
5 6
I'm surprised no one has proposed a solution using std::regex
yet:
#include <string>
#include <algorithm>
#include <vector>
#include <regex>
void parse_csint( const std::string& str, std::vector<int>& result ) {
typedef std::regex_iterator<std::string::const_iterator> re_iterator;
typedef re_iterator::value_type re_iterated;
std::regex re("(\\d+)");
re_iterator rit( str.begin(), str.end(), re );
re_iterator rend;
std::transform( rit, rend, std::back_inserter(result),
[]( const re_iterated& it ){ return std::stoi(it[1]); } );
}
This function inserts all integers at the back of the input vector. You can tweak the regular expression to include negative integers, or floating point numbers, etc.
GCD needs a little correction for negative numbers:
def gcd(x,y):
while y:
if y<0:
x,y=-x,-y
x,y=y,x % y
return x
def gcdl(*list):
return reduce(gcd, *list)
def lcm(x,y):
return x*y / gcd(x,y)
def lcml(*list):
return reduce(lcm, *list)
Here is my vision of solution. You can try my snippet below.
function secToHHMM(sec) {_x000D_
var d = new Date();_x000D_
d.setHours(0);_x000D_
d.setMinutes(0);_x000D_
d.setSeconds(0);_x000D_
d = new Date(d.getTime() + sec*1000);_x000D_
return d.toLocaleString('en-GB').split(' ')[1];_x000D_
};_x000D_
_x000D_
alert( 'One hour: ' + secToHHMM(60*60) ); // '01:00:00'_x000D_
alert( 'One hour five minutes: ' + secToHHMM(60*60 + 5*60) ); // '01:05:00'_x000D_
alert( 'One hour five minutes 23 seconds: ' + secToHHMM(60*60 + 5*60 + 23) ); // '01:05:23'
_x000D_
"SELECT * FROM yourTable WHERE city = 'c7'"
"SELECT * FROM yourTable WHERE city LIKE '%c7%'"
Of course you can change '%c7%'
to '%c7'
or 'c7%'
depending on how you want to search it. For exact match, use first query example.
$result = mysql_query("SELECT * FROM yourTable WHERE city = 'c7'");
$matchFound = mysql_num_rows($result) > 0 ? 'yes' : 'no';
echo $matchFound;
You can also use if
condition there.
You can make YouTube videos responsive with CSS. Wrap the iframe in a div with the class of "videowrapper" and apply the following styles:
.videowrapper {
float: none;
clear: both;
width: 100%;
position: relative;
padding-bottom: 56.25%;
padding-top: 25px;
height: 0;
}
.videowrapper iframe {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
The .videowrapper div should be inside a responsive element. The padding on the .videowrapper is necessary to keep the video from collapsing. You may have to tweak the numbers depending upon your layout.
Use a List of custom class instances. The custom class is some sort of Pair or Coordinate or whatever. Then just
List<Coordinate> = new YourFavoriteListImplHere<Coordinate>()
This approach has the advantage that it makes satisfying this requirement "perform simple math (like multiplying the pair together to return a single float, etc)" clean, because your custom class can have methods for whatever maths you need to do...
DATE() is a MySQL function that extracts only the date part of a date or date/time expression
SELECT * FROM table_name WHERE DATE(date_field) BETWEEN '2016-12-01' AND '2016-12-10';
You have to dot source
them:
. .\build_funtions.ps1
. .\build_builddefs.ps1
Note the extra .
This heyscriptingguy
article should be of help - How to Reuse Windows PowerShell Functions in Scripts
I do it on the server side, at the begining of my init file, works like a charm and you don't have to do anything in angular or existing php code:
if ($_SERVER['REQUEST_METHOD'] == 'POST' && empty($_POST))
$_POST = json_decode(file_get_contents('php://input'), true);
I think your error was in calling the function.
In your HTML code, onclick
is calling the image()
function. However, in your script the function is named imgWindow()
. Try changing the onclick to imgWindow()
.
I don't do much JavaScript so if I have missed something, please let me know.
Good Luck!
.section {
display: flex;
}
.element-left {
width: 94%;
}
.element-right {
flex-grow: 1;
}
_x000D_
<div class="section">
<div id="dB" class="element-left" }>
<a href="http://notareallink.com" title="Download" id="buyButton">Download</a>
</div>
<div id="gB" class="element-right">
<a href="#" title="Gallery" onclick="$j('#galleryDiv').toggle('slow');return false;" id="galleryButton">Gallery</a>
</div>
</div>
_x000D_
or
.section {
display: flex;
flex-wrap: wrap;
}
.element-left {
flex: 2;
}
.element-right {
width: 100px;
}
_x000D_
<div class="section">
<div id="dB" class="element-left" }>
<a href="http://notareallink.com" title="Download" id="buyButton">Download</a>
</div>
<div id="gB" class="element-right">
<a href="#" title="Gallery" onclick="$j('#galleryDiv').toggle('slow');return false;" id="galleryButton">Gallery</a>
</div>
</div>
_x000D_
SWIFT 3: Don't know if this is what you're looking for. But I compare a string to a current timestamp to see if my string is older that now.
func checkTimeStamp(date: String!) -> Bool {
let dateFormatter: DateFormatter = DateFormatter()
dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
dateFormatter.locale = Locale(identifier:"en_US_POSIX")
let datecomponents = dateFormatter.date(from: date)
let now = Date()
if (datecomponents! >= now) {
return true
} else {
return false
}
}
To use it:
if (checkTimeStamp(date:"2016-11-21 12:00:00") == false) {
// Do something
}
I suspect in most applications you won't know who to text, so you only want to fill the text body, not the number. That works as you'd expect by just leaving out the number - here's what the URLs look like in that case:
sms:?body=message
For iOS same thing except with the ;
sms:;body=message
Here's an example of the code I use to set up the SMS:
var ua = navigator.userAgent.toLowerCase();
var url;
if (ua.indexOf("iphone") > -1 || ua.indexOf("ipad") > -1)
url = "sms:;body=" + encodeURIComponent("I'm at " + mapUrl + " @ " + pos.Address);
else
url = "sms:?body=" + encodeURIComponent("I'm at " + mapUrl + " @ " + pos.Address);
location.href = url;
You could basically use html tags in your string resource like:
<resource>
<string name="styled_welcome_message">We are <b><i>so</i></b> glad to see you.</string>
</resources>
And use Html.fromHtml or use spannable, check the link I posted.
Old similar question: Is it possible to have multiple styles inside a TextView?
Use requests.packages.urllib3.disable_warnings()
and verify=False
on requests
methods.
import requests
from urllib3.exceptions import InsecureRequestWarning
# Suppress only the single warning from urllib3 needed.
requests.packages.urllib3.disable_warnings(category=InsecureRequestWarning)
# Set `verify=False` on `requests.post`.
requests.post(url='https://example.com', data={'bar':'baz'}, verify=False)
Another way to do this is:
// inflate the layout
View myLayout = LayoutInflater.from(this).inflate(R.layout.MY_LAYOUT,null);
// load the text view
TextView myView = (TextView) myLayout.findViewById(R.id.MY_VIEW);
If you don't mind using lodash try out https://github.com/rockabox/ng-lodash it wraps lodash completely so it is the only dependency and you don't need to load any other script files such as lodash.
Lodash is completely off of the window scope and no "hoping" that it's been loaded prior to your module.
After a long time looking for a way to get git log
output the date in the format YYYY-MM-DD
in a way that would work in less
, I came up with the following format:
%ad%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08
along with the switch --date=iso
.
This will print the date in ISO format (a long one), and then print 14 times the backspace character (0x08), which, in my terminal, effectively removes everything after the YYYY-MM-DD part. For example:
git log --date=iso --pretty=format:'%ad%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%aN %s'
This gives something like:
2013-05-24 bruno This is the message of the latest commit.
2013-05-22 bruno This is an older commit.
...
What I did was create an alias named l
with some tweaks on the format above. It shows the commit graph to the left, then the commit's hash, followed by the date, the shortnames, the refnames and the subject. The alias is as follows (in ~/.gitconfig):
[alias]
l = log --date-order --date=iso --graph --full-history --all --pretty=format:'%x08%x09%C(red)%h %C(cyan)%ad%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08%x08 %C(bold blue)%aN%C(reset)%C(bold yellow)%d %C(reset)%s'
Use count(d.ertek)
or count(d.id)
instead of count(d)
. This can be happen when you have composite primary key at your entity.
The script file
bash-3.2$ cat test.sh
#!/bin/bash
echo "The argument is arg: $1"
for ((n=0;n<$1;n++));
do
echo "Hi"
done
and the output below
bash-3.2$ ./test.sh 3
The argument is arg: 3
Hi
Hi
Hi
bash-3.2$
As a temporary fix, users can right click the utility and select "Run as administrator."
It's trying to connect to the computer it's running on on port 5000, but the connection is being refused. Are you sure you have a server running?
If not, you can use netcat
for testing:
nc -l -k -p 5000
Some implementations may require you to omit the -p
flag.
One way would be to create a variable that represents the first of the month (ie 5/1/2009), either pass it into the proc or build it (concatenate month/1/year). Then use the DateDiff function.
WHERE DateDiff(m,@Date,DateField) = 0
This will return anything with a matching month and year.
Or you can use a for-each loop:
Collection<X> items = ...;
X last = null;
for (X x : items) last = x;
I think zeroclipboard is great. this version work with latest Flash 11: http://www.itjungles.com/javascript/javascript-easy-cross-browser-copy-to-clipboard-solution.
Another way
@Html.TextAreaFor(model => model.Comments[0].Comment)
And in your css do this
textarea
{
font-family: inherit;
width: 650px;
height: 65px;
}
That DataType dealie allows carriage returns in the data, not everybody likes those.
document.location.href="/";
To answer the question precisely, What happens when user presses "Never Ask Again"?
The overridden method / function
onRequestPermissionsResult(requestCode: Int, permissions: Array<out String>, grantResults: IntArray)
The grantResult array comes out to be Empty, so you can do something there maybe? But not the best practice.
How to Handle "Never Ask Again"?
I am working with Fragment, which required READ_EXTERNAL_STORAGE permission.
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
when {
isReadPermissionsGranted() -> {
/**
* Permissions has been Granted
*/
getDirectories()
}
isPermissionDeniedBefore() -> {
/**
* User has denied before, explain why we need the permission and ask again
*/
updateUIForDeniedPermissions()
checkIfPermissionIsGrantedNow()
}
else -> {
/**
* Need to ask For Permissions, First Time
*/
checkIfPermissionIsGrantedNow()
/**
* If user selects, "Dont Ask Again" it will never ask again! so just update the UI for Denied Permissions
*/
updateUIForDeniedPermissions()
}
}
}
The other functions are trivial.
// Is Read Write Permissions Granted
fun isReadWritePermissionGranted(context: Context): Boolean {
return (ContextCompat.checkSelfPermission(
context as Activity,
Manifest.permission.READ_EXTERNAL_STORAGE
) == PackageManager.PERMISSION_GRANTED) and
(ContextCompat.checkSelfPermission(
context,
Manifest.permission.WRITE_EXTERNAL_STORAGE
) == PackageManager.PERMISSION_GRANTED)
}
fun isReadPermissionDenied(context: Context) : Boolean {
return ActivityCompat.shouldShowRequestPermissionRationale(
context as Activity,
PermissionsUtils.READ_EXTERNAL_STORAGE_PERMISSIONS)
}
I know this question is old but I spend an hour trying to export a complex query to csv and I wanted to share my thoughts. First I couldn't get any of the json to csv converters to work (although this one looked promising). What I ended up doing was manually writing the csv file in my mongo script.
This is a simple version but essentially what I did:
print("name,id,email");
db.User.find().forEach(function(user){
print(user.name+","+user._id.valueOf()+","+user.email);
});
This I just piped the query to stdout
mongo test export.js > out.csv
where test
is the name of the database I use.
When using Child Component We check type like this.
Parent Component:
export default () => {
const onChangeHandler = ((e: React.ChangeEvent<HTMLInputElement>): void => {
console.log(e.currentTarget.value)
}
return (
<div>
<Input onChange={onChangeHandler} />
</div>
);
}
Child Component:
type Props = {
onChange: (e: React.ChangeEvent<HTMLInputElement>) => void
}
export Input:React.FC<Props> ({onChange}) => (
<input type="tex" onChange={onChange} />
)
Use this :
private string GetAlbumRSS(SyndicationItem album)
{
string url = "";
foreach (SyndicationElementExtension ext in album.ElementExtensions)
if (ext.OuterName == "itemRSS") url = ext.GetObject<string>();
return (url);
}
protected void Page_Load(object sender, EventArgs e)
{
string albumRSS;
string url = "http://www.SomeSite.com/rss?";
XmlReader r = XmlReader.Create(url);
SyndicationFeed albums = SyndicationFeed.Load(r);
r.Close();
foreach (SyndicationItem album in albums.Items)
{
cell.InnerHtml = cell.InnerHtml +string.Format("<br \'><a href='{0}'>{1}</a>", album.Links[0].Uri, album.Title.Text);
albumRSS = GetAlbumRSS(album);
}
}
var i = $("#panel input");
should work :-)
the > will only fetch direct children, no children's children
the : is for using pseudo-classes, eg. :hover, etc.
you can read about available css-selectors of pseudo-classes here: http://docs.jquery.com/DOM/Traversing/Selectors#CSS_Selectors
Writing the properties file with multiple comments is not supported. Why ?
PropertyFile.java
public class PropertyFile extends Task {
/* ========================================================================
*
* Instance variables.
*/
// Use this to prepend a message to the properties file
private String comment;
private Properties properties;
The ant property file task is backed by a java.util.Properties
class which stores comments using the store() method. Only one comment is taken from the task and that is passed on to the Properties
class to save into the file.
The way to get around this is to write your own task that is backed by commons properties instead of java.util.Properties
. The commons properties file is backed by a property layout which allows settings comments for individual keys in the properties file. Save the properties file with the save() method and modify the new task to accept multiple comments through <comment>
elements.
Just create your own template for the type in Views/Shared/EditorTemplates/MyTypeEditor.vbhtml
@ModelType MyType
@ModelType MyType
@Code
Dim name As String = ViewData("ControlId")
If String.IsNullOrEmpty(name) Then
name = "MyTypeEditor"
End If
End Code
' Mark-up for MyType Editor
@Html.TextBox(name, Model, New With {.style = "width:65px;background-color:yellow"})
Invoke editor from your view with the model property:
@Html.EditorFor(Function(m) m.MyTypeProperty, "MyTypeEditor", New {.ControlId = "uniqueId"})
Pardon the VB syntax. That's just how we roll.
WebSockets is protocol that relies on TCP streamed connection. Although WebSockets is Message based protocol.
If you want to implement your own protocol then I recommend to use latest and stable specification (for 18/04/12) RFC 6455. This specification contains all necessary information regarding handshake and framing. As well most of description on scenarios of behaving from browser side as well as from server side. It is highly recommended to follow what recommendations tells regarding server side during implementing of your code.
In few words, I would describe working with WebSockets like this:
Create server Socket (System.Net.Sockets) bind it to specific port, and keep listening with asynchronous accepting of connections. Something like that:
Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP); serverSocket.Bind(new IPEndPoint(IPAddress.Any, 8080)); serverSocket.Listen(128); serverSocket.BeginAccept(null, 0, OnAccept, null);
You should have accepting function "OnAccept" that will implement handshake. In future it has to be in another thread if system is meant to handle huge amount of connections per second.
private void OnAccept(IAsyncResult result) { try { Socket client = null; if (serverSocket != null && serverSocket.IsBound) { client = serverSocket.EndAccept(result); } if (client != null) { /* Handshaking and managing ClientSocket */ } } catch(SocketException exception) { } finally { if (serverSocket != null && serverSocket.IsBound) { serverSocket.BeginAccept(null, 0, OnAccept, null); } } }
After connection established, you have to do handshake. Based on specification 1.3 Opening Handshake, after connection established you will receive basic HTTP request with some information. Example:
GET /chat HTTP/1.1 Host: server.example.com Upgrade: websocket Connection: Upgrade Sec-WebSocket-Key: dGhlIHNhbXBsZSBub25jZQ== Origin: http://example.com Sec-WebSocket-Protocol: chat, superchat Sec-WebSocket-Version: 13
This example is based on version of protocol 13. Bear in mind that older versions have some differences but mostly latest versions are cross-compatible. Different browsers may send you some additional data. For example Browser and OS details, cache and others.
Based on provided handshake details, you have to generate answer lines, they are mostly same, but will contain Accpet-Key, that is based on provided Sec-WebSocket-Key. In specification 1.3 it is described clearly how to generate response key. Here is my function I've been using for V13:
static private string guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; private string AcceptKey(ref string key) { string longKey = key + guid; SHA1 sha1 = SHA1CryptoServiceProvider.Create(); byte[] hashBytes = sha1.ComputeHash(System.Text.Encoding.ASCII.GetBytes(longKey)); return Convert.ToBase64String(hashBytes); }
Handshake answer looks like that:
HTTP/1.1 101 Switching Protocols Upgrade: websocket Connection: Upgrade Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=
But accept key have to be the generated one based on provided key from client and method AcceptKey I provided before. As well, make sure after last character of accept key you put two new lines "\r\n\r\n".
Implementing own WebSockets protocol definitely have some benefits and great experience you get as well as control over protocol it self. But you have to spend some time doing it, and make sure that implementation is highly reliable.
In same time you might have a look in ready to use solutions that google (again) have enough.
You can use a single textFile call to read multiple files. Scala:
sc.textFile(','.join(files))
Surely using array_map
and if using a container implementing ArrayAccess
to derive objects is just a smarter, semantic way to go about this?
Array map semantics are similar across most languages and implementations that I've seen. It's designed to return a modified array based upon input array element (high level ignoring language compile/runtime type preference); a loop is meant to perform more logic.
For retrieving objects by ID / PK, depending upon if you are using SQL or not (it seems suggested), I'd use a filter to ensure I get an array of valid PK's, then implode with comma and place into an SQL IN()
clause to return the result-set. It makes one call instead of several via SQL, optimising a bit of the call->wait
cycle. Most importantly my code would read well to someone from any language with a degree of competence and we don't run into mutability problems.
<?php
$arr = [0,1,2,3,4];
$arr2 = array_map(function($value) { return is_int($value) ? $value*2 : $value; }, $arr);
var_dump($arr);
var_dump($arr2);
vs
<?php
$arr = [0,1,2,3,4];
foreach($arr as $i => $item) {
$arr[$i] = is_int($item) ? $item * 2 : $item;
}
var_dump($arr);
If you know what you are doing will never have mutability problems (bearing in mind if you intend upon overwriting $arr
you could always $arr = array_map
and be explicit.
The data series names are defined by the column headers. Add the names to the column headers that you would like to use as titles for each of your data series, select all of the data (including the headers), then re-generate your graph. The names in the headers should then appear as the names in the legend for each series.
"C:\Program Files\PuTTY\pscp.exe" -scp file.py server.com:
file.py
will be uploaded into your HOME
dir on remote server.
or when the remote server has a different user, use "C:\Program Files\PuTTY\pscp.exe" -l username -scp file.py server.com:
After connecting to the server pscp will ask for a password.
You can use the SOUNDEX and related DIFFERENCE function in SQL Server to find similar names. The reference on MSDN is here.
Someone asked about adding attributes (specifically, 'rows' and 'cols'). If you're using Razor, you could just do this:
@Html.TextAreaFor(model => model.Text, new { cols = 35, @rows = 3 })
That works for me. The '@' is used to escape keywords so they are treated as variables/properties.
In Eclipse
, right click on the xsd
file you want to get --> Generate --> Java... --> Generator: "Schema to JAXB Java Classes".
I just faced the same problem, I had a bunch of xsd
files, only one of them being the XML Root Element
and it worked well what I explained above in Eclipse
using ssh from java should not be as hard as jsch makes it. you might be better off with sshj.
I have made a package for that purpose.
You can use it like this:
from pybeep.pybeep import PyVibrate, PyBeep
PyVibrate().beep()
PyVibrate().beepn(3)
PyBeep().beep()
PyBeep().beepn(3)
It depends on sox and only supports python3.
Since you haven't posted any code, it's difficult to know exactly which problems you're encountering. However, the blog post you link to does seem to work pretty decently... aside from the extra comma in each call to CCCrypt()
which caused compile errors.
A later comment on that post includes this adapted code, which works for me, and seems a bit more straightforward. If you include their code for the NSData category, you can write something like this: (Note: The printf()
calls are only for demonstrating the state of the data at various points — in a real application, it wouldn't make sense to print such values.)
int main (int argc, const char * argv[]) {
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
NSString *key = @"my password";
NSString *secret = @"text to encrypt";
NSData *plain = [secret dataUsingEncoding:NSUTF8StringEncoding];
NSData *cipher = [plain AES256EncryptWithKey:key];
printf("%s\n", [[cipher description] UTF8String]);
plain = [cipher AES256DecryptWithKey:key];
printf("%s\n", [[plain description] UTF8String]);
printf("%s\n", [[[NSString alloc] initWithData:plain encoding:NSUTF8StringEncoding] UTF8String]);
[pool drain];
return 0;
}
Given this code, and the fact that encrypted data will not always translate nicely into an NSString, it may be more convenient to write two methods that wrap the functionality you need, in forward and reverse...
- (NSData*) encryptString:(NSString*)plaintext withKey:(NSString*)key {
return [[plaintext dataUsingEncoding:NSUTF8StringEncoding] AES256EncryptWithKey:key];
}
- (NSString*) decryptData:(NSData*)ciphertext withKey:(NSString*)key {
return [[[NSString alloc] initWithData:[ciphertext AES256DecryptWithKey:key]
encoding:NSUTF8StringEncoding] autorelease];
}
This definitely works on Snow Leopard, and @Boz reports that CommonCrypto is part of the Core OS on the iPhone. Both 10.4 and 10.5 have /usr/include/CommonCrypto
, although 10.5 has a man page for CCCryptor.3cc
and 10.4 doesn't, so YMMV.
EDIT: See this follow-up question on using Base64 encoding for representing encrypted data bytes as a string (if desired) using safe, lossless conversions.
Check you routes, the update on 9/28/2014 impacted us. We had to adjust our older servers and add new routes. Here is the article http://www.rackspace.com/knowledge_center/article/updating-servicenet-routes-on-cloud-servers-created-before-june-3-2013
For who has same issue on VS Professional 2019. I Installed Xamarin bundle and after that this IIS error starts. I have tried all solutions above without any luck. What I did to fix it is :
If you put Datetime nullable like DateTime?
in your model it doesn't throw exception.
I solved the problem like this in my case.
I would suggest better cek first if the current page has a hash. Otherwise it will be undefined
.
$(window).on('load', function(){
if( location.hash && location.hash.length ) {
var hash = decodeURIComponent(location.hash.substr(1));
$('ul'+hash+':first').show();;
}
});
Have you checked the Tomcat source code and the JVM source ? That may give you more help.
I think your general thinking is good. I would expect a ConnectException
in the scenario that you couldn't connect. The above looks very like it's client-driven.
First: start XQuartz
Second: ssh -X user@ip_address
...: start your process
if you ssh and then start XQuartz you will get that error
For Ionic (Typescript) you have to double slash in order to scape the characters. For example (this is to match some special characters):
"^(?=.*[\\]\\[!¡\'=ªº\\-\\_ç@#$%^&*(),;\\.?\":{}|<>\+\\/])"
Pay attention to this ] [ - _ . /
characters. They have to be double slashed. If you don't do that, you are going to have a type error in your code.
This creates dictionary of text (string):
Map<String, String> dictionary = new HashMap<String, String>();
you then use it as a:
dictionary.put("key", "value");
String value = dictionary.get("key");
Works but gives an error you need to keep the constructor class same as the declaration class. I know it inherits from the parent class but, unfortunately it gives an error on runtime.
Map<String, String> dictionary = new Map<String, String>();
This works properly.
It can be done this way also
char c[]=str.toCharArray();
int i=c.lenght-1;
public void printReverseString(char[] c, int i){
if(i==-1) return;
System.out.println(c[i]);
printReverseString(c,--i);
}
I had the same problem and it might look so easy but it solved my problem. I have tried all the solutions recommended here but there was no problem just a day ago. So I thought the problem might be about the Session data. I tried to stop and run apache and mysql services but it didn't work also. Then I realized there are buttons on phpMyAdmin just below its logo on the left side. The button next to "Home"; "Empty Session Data" solved all of my problems.
I'm posting an answer from another thread because it's what worked well for me, the trick is to add support for both architectures :
Posting this because I could not find a direct answer and had to look at a couple of different posts to get what I wanted done...
I was able to use the x86 Accelerated (HAXM) emulator by simply adding this to my Module's build.gradle script Inside android{} block:
splits {
abi {
enable true
reset()
include 'x86', 'armeabi-v7a'
universalApk true
}
}
Run (build)... Now there will be a (yourapp)-x86-debug.apk in your output folder. I'm sure there's a way to automate installing upon Run but I just start my preferred HAXM emulator and use command line:
adb install (yourapp)-x86-debug.apk
Syntax errors is not checked easily in external servers, just runtime errors.
What I do? Just like you, I use
ini_set('display_errors', 'On');
error_reporting(E_ALL);
However, before run I check syntax errors in a PHP file using an online PHP syntax checker.
The best, IMHO is PHP Code Checker
I copy all the source code, paste inside the main box and click the Analyze
button.
It is not the most practical method, but the 2 procedures are complementary and it solves the problem completely
I came across this really great talk by Facebook engineers about the Efficient Storage of Billions of Photos in a database
The following should work nicely.
$(function() {
// Way 1
function doosomething()
{
//Doo something
}
// Way 2, equivalent to Way 1
var doosomething = function() {
// Doo something
}
$("div.class").click(doosomething);
$("div.secondclass").click(doosomething);
});
Basically, you are declaring your function in the same scope as your are using it (JavaScript uses Closures to determine scope).
Now, since functions in JavaScript behave like any other object, you can simply assign doosomething
as the function to call on click by using .click(doosomething);
Your function will not execute until you call it using doosomething()
(doosomething
without the ()
refers to the function but doesn't call it) or another function calls in (in this case, the click
handler).
The following snippet (from the dotnet samples) demonstrates how:
public static Dictionary<int, string> EnumNamedValues<T>() where T : System.Enum
{
var result = new Dictionary<int, string>();
var values = Enum.GetValues(typeof(T));
foreach (int item in values)
result.Add(item, Enum.GetName(typeof(T), item));
return result;
}
Be sure to set your language version in your C# project to version 7.3.
Original Answer below:
I'm late to the game, but I took it as a challenge to see how it could be done. It's not possible in C# (or VB.NET, but scroll down for F#), but is possible in MSIL. I wrote this little....thing
// license: http://www.apache.org/licenses/LICENSE-2.0.html
.assembly MyThing{}
.class public abstract sealed MyThing.Thing
extends [mscorlib]System.Object
{
.method public static !!T GetEnumFromString<valuetype .ctor ([mscorlib]System.Enum) T>(string strValue,
!!T defaultValue) cil managed
{
.maxstack 2
.locals init ([0] !!T temp,
[1] !!T return_value,
[2] class [mscorlib]System.Collections.IEnumerator enumerator,
[3] class [mscorlib]System.IDisposable disposer)
// if(string.IsNullOrEmpty(strValue)) return defaultValue;
ldarg strValue
call bool [mscorlib]System.String::IsNullOrEmpty(string)
brfalse.s HASVALUE
br RETURNDEF // return default it empty
// foreach (T item in Enum.GetValues(typeof(T)))
HASVALUE:
// Enum.GetValues.GetEnumerator()
ldtoken !!T
call class [mscorlib]System.Type [mscorlib]System.Type::GetTypeFromHandle(valuetype [mscorlib]System.RuntimeTypeHandle)
call class [mscorlib]System.Array [mscorlib]System.Enum::GetValues(class [mscorlib]System.Type)
callvirt instance class [mscorlib]System.Collections.IEnumerator [mscorlib]System.Array::GetEnumerator()
stloc enumerator
.try
{
CONDITION:
ldloc enumerator
callvirt instance bool [mscorlib]System.Collections.IEnumerator::MoveNext()
brfalse.s LEAVE
STATEMENTS:
// T item = (T)Enumerator.Current
ldloc enumerator
callvirt instance object [mscorlib]System.Collections.IEnumerator::get_Current()
unbox.any !!T
stloc temp
ldloca.s temp
constrained. !!T
// if (item.ToString().ToLower().Equals(value.Trim().ToLower())) return item;
callvirt instance string [mscorlib]System.Object::ToString()
callvirt instance string [mscorlib]System.String::ToLower()
ldarg strValue
callvirt instance string [mscorlib]System.String::Trim()
callvirt instance string [mscorlib]System.String::ToLower()
callvirt instance bool [mscorlib]System.String::Equals(string)
brfalse.s CONDITION
ldloc temp
stloc return_value
leave.s RETURNVAL
LEAVE:
leave.s RETURNDEF
}
finally
{
// ArrayList's Enumerator may or may not inherit from IDisposable
ldloc enumerator
isinst [mscorlib]System.IDisposable
stloc.s disposer
ldloc.s disposer
ldnull
ceq
brtrue.s LEAVEFINALLY
ldloc.s disposer
callvirt instance void [mscorlib]System.IDisposable::Dispose()
LEAVEFINALLY:
endfinally
}
RETURNDEF:
ldarg defaultValue
stloc return_value
RETURNVAL:
ldloc return_value
ret
}
}
Which generates a function that would look like this, if it were valid C#:
T GetEnumFromString<T>(string valueString, T defaultValue) where T : Enum
Then with the following C# code:
using MyThing;
// stuff...
private enum MyEnum { Yes, No, Okay }
static void Main(string[] args)
{
Thing.GetEnumFromString("No", MyEnum.Yes); // returns MyEnum.No
Thing.GetEnumFromString("Invalid", MyEnum.Okay); // returns MyEnum.Okay
Thing.GetEnumFromString("AnotherInvalid", 0); // compiler error, not an Enum
}
Unfortunately, this means having this part of your code written in MSIL instead of C#, with the only added benefit being that you're able to constrain this method by System.Enum
. It's also kind of a bummer, because it gets compiled into a separate assembly. However, it doesn't mean you have to deploy it that way.
By removing the line .assembly MyThing{}
and invoking ilasm as follows:
ilasm.exe /DLL /OUTPUT=MyThing.netmodule
you get a netmodule instead of an assembly.
Unfortunately, VS2010 (and earlier, obviously) does not support adding netmodule references, which means you'd have to leave it in 2 separate assemblies when you're debugging. The only way you can add them as part of your assembly would be to run csc.exe yourself using the /addmodule:{files}
command line argument. It wouldn't be too painful in an MSBuild script. Of course, if you're brave or stupid, you can run csc yourself manually each time. And it certainly gets more complicated as multiple assemblies need access to it.
So, it CAN be done in .Net. Is it worth the extra effort? Um, well, I guess I'll let you decide on that one.
Extra Credit: It turns out that a generic restriction on enum
is possible in at least one other .NET language besides MSIL: F#.
type MyThing =
static member GetEnumFromString<'T when 'T :> Enum> str defaultValue: 'T =
/// protect for null (only required in interop with C#)
let str = if isNull str then String.Empty else str
Enum.GetValues(typedefof<'T>)
|> Seq.cast<_>
|> Seq.tryFind(fun v -> String.Compare(v.ToString(), str.Trim(), true) = 0)
|> function Some x -> x | None -> defaultValue
This one is easier to maintain since it's a well-known language with full Visual Studio IDE support, but you still need a separate project in your solution for it. However, it naturally produces considerably different IL (the code is very different) and it relies on the FSharp.Core
library, which, just like any other external library, needs to become part of your distribution.
Here's how you can use it (basically the same as the MSIL solution), and to show that it correctly fails on otherwise synonymous structs:
// works, result is inferred to have type StringComparison
var result = MyThing.GetEnumFromString("OrdinalIgnoreCase", StringComparison.Ordinal);
// type restriction is recognized by C#, this fails at compile time
var result = MyThing.GetEnumFromString("OrdinalIgnoreCase", 42);
Still an old one, but answer from Lee did not give me the group.Key as result. Therefore, I am using the following statement to group a list and return a grouped list:
public IOrderedEnumerable<IGrouping<string, User>> groupedCustomerList;
groupedCustomerList =
from User in userList
group User by User.GroupID into newGroup
orderby newGroup.Key
select newGroup;
Each group now has a key, but also contains an IGrouping which is a collection that allows you to iterate over the members of the group.
Well, this one liner might qualify (uses Guava Ranges)
ContiguousSet<Integer> integerList = ContiguousSet.create(Range.closedOpen(0, 10), DiscreteDomain.integers());
System.out.println(integerList);
This doesn't create a List<Integer>
, but ContiguousSet
offers much the same functionality, in particular implementing Iterable<Integer>
which allows foreach
implementation in the same way as List<Integer>
.
In older versions (somewhere before Guava 14) you could use this:
ImmutableList<Integer> integerList = Ranges.closedOpen(0, 10).asSet(DiscreteDomains.integers()).asList();
System.out.println(integerList);
Both produce:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
A class with a field:
Public Class MyStudent
Public StudentId As Integer
The constructor:
Public Sub New(newStudentId As Integer)
StudentId = newStudentId
End Sub
End Class
If your SQL Server version supports the function FORMAT you could do it like this:
select format(getdate(), 'yyyy-MM-dd HH:mm:ss.fff')
If you don't know what backend is , you can read this: https://matplotlib.org/tutorials/introductory/usage.html#backends
Some people use matplotlib interactively from the python shell and have plotting windows pop up when they type commands. Some people run Jupyter notebooks and draw inline plots for quick data analysis. Others embed matplotlib into graphical user interfaces like wxpython or pygtk to build rich applications. Some people use matplotlib in batch scripts to generate postscript images from numerical simulations, and still others run web application servers to dynamically serve up graphs. To support all of these use cases, matplotlib can target different outputs, and each of these capabilities is called a backend; the "frontend" is the user facing code, i.e., the plotting code, whereas the "backend" does all the hard work behind-the-scenes to make the figure.
So when you type %matplotlib inline , it activates the inline backend. As discussed in the previous posts :
With this backend, the output of plotting commands is displayed inline within frontends like the Jupyter notebook, directly below the code cell that produced it. The resulting plots will then also be stored in the notebook document.
using (SqlConnection sqlConnection1 = new SqlConnection("Your Connection String")) {
using (SqlCommand cmd = new SqlCommand()) {
Int32 rowsAffected;
cmd.CommandText = "StoredProcedureName";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Connection = sqlConnection1;
sqlConnection1.Open();
rowsAffected = cmd.ExecuteNonQuery();
}}
You can break a text using an entity in between the value. See the entity in example below:
<input style="width:100px;" type="button" value="Click here 
 to 
 start playing">
docker build -t {image name} -v {host directory}:{temp build directory} .
This is another way to copy files into an image. The -v option temporarily creates a volume that us used during the build process.
This is different that other volumes because it mounts a host directory for the build only. Files can be copied using a standard cp command.
Also, like the curl and wget, it can be run in a command stack (runs in a single container) and not multiply the image size. ADD and COPY are not stackable because they run in a standalone container and subsequent commands on those files that execute in additional containers will multiply the image size:
With the options set thus:
-v /opt/mysql-staging:/tvol
The following will execute in one container:
RUN cp -r /tvol/mysql-5.7.15-linux-glibc2.5-x86_64 /u1 && \
mv /u1/mysql-5.7.15-linux-glibc2.5-x86_64 /u1/mysql && \
mkdir /u1/mysql/mysql-files && \
mkdir /u1/mysql/innodb && \
mkdir /u1/mysql/innodb/libdata && \
mkdir /u1/mysql/innodb/innologs && \
mkdir /u1/mysql/tmp && \
chmod 750 /u1/mysql/mysql-files && \
chown -R mysql /u1/mysql && \
chgrp -R mysql /u1/mysql
windows:
@echo off
for /r %%d in (*.wav) do (
ffmpeg -i "%%~nd%%~xd" -codec:a libmp3lame -c:v copy -qscale:a 2 "%
%~nd.2.mp3"
)
this is variable bitrate of quality 2, you can set it to 0 if you want but unless you have a really good speaker system it's worthless imo
If you want to take some shortcuts you can use Apache Commons IO:
import org.apache.commons.io.FileUtils;
String data = FileUtils.readFileToString(new File("..."), "UTF-8");
System.out.println(data);
:-)
First of all, remove component folder, which you have to delete and then remove its entries which you have made in "ts" files.
You could use a literal eval:
>>> ast.literal_eval('0xdeadbeef')
3735928559
Or just specify the base as argument to int
:
>>> int('deadbeef', 16)
3735928559
A trick that is not well known, if you specify the base 0
to int
, then Python will attempt to determine the base from the string prefix:
>>> int("0xff", 0)
255
>>> int("0o644", 0)
420
>>> int("0b100", 0)
4
>>> int("100", 0)
100
Your first example is perfectly fine. Even the official Python documentation recommends this style known as EAFP.
Personally, I prefer to avoid nesting when it's not necessary:
def __getattribute__(self, item):
try:
return object.__getattribute__(item)
except AttributeError:
pass # Fallback to dict
try:
return self.dict[item]
except KeyError:
raise AttributeError("The object doesn't have such attribute") from None
PS. has_key()
has been deprecated for a long time in Python 2. Use item in self.dict
instead.
I solved this issue following the indication provided in the article http://blog.dev-area.net/2015/08/13/android-4-1-enable-tls-1-1-and-tls-1-2/ with little changes.
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, null, null);
SSLSocketFactory noSSLv3Factory = null;
if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.KITKAT) {
noSSLv3Factory = new TLSSocketFactory(sslContext.getSocketFactory());
} else {
noSSLv3Factory = sslContext.getSocketFactory();
}
connection.setSSLSocketFactory(noSSLv3Factory);
This is the code of the custom TLSSocketFactory:
public static class TLSSocketFactory extends SSLSocketFactory {
private SSLSocketFactory internalSSLSocketFactory;
public TLSSocketFactory(SSLSocketFactory delegate) throws KeyManagementException, NoSuchAlgorithmException {
internalSSLSocketFactory = delegate;
}
@Override
public String[] getDefaultCipherSuites() {
return internalSSLSocketFactory.getDefaultCipherSuites();
}
@Override
public String[] getSupportedCipherSuites() {
return internalSSLSocketFactory.getSupportedCipherSuites();
}
@Override
public Socket createSocket(Socket s, String host, int port, boolean autoClose) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose));
}
@Override
public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
}
@Override
public Socket createSocket(String host, int port, InetAddress localHost, int localPort) throws IOException, UnknownHostException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort));
}
@Override
public Socket createSocket(InetAddress host, int port) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port));
}
@Override
public Socket createSocket(InetAddress address, int port, InetAddress localAddress, int localPort) throws IOException {
return enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort));
}
/*
* Utility methods
*/
private static Socket enableTLSOnSocket(Socket socket) {
if (socket != null && (socket instanceof SSLSocket)
&& isTLSServerEnabled((SSLSocket) socket)) { // skip the fix if server doesn't provide there TLS version
((SSLSocket) socket).setEnabledProtocols(new String[]{TLS_v1_1, TLS_v1_2});
}
return socket;
}
private static boolean isTLSServerEnabled(SSLSocket sslSocket) {
System.out.println("__prova__ :: " + sslSocket.getSupportedProtocols().toString());
for (String protocol : sslSocket.getSupportedProtocols()) {
if (protocol.equals(TLS_v1_1) || protocol.equals(TLS_v1_2)) {
return true;
}
}
return false;
}
}
Edit: Thank's to ademar111190 for the kotlin implementation (link)
class TLSSocketFactory constructor(
private val internalSSLSocketFactory: SSLSocketFactory
) : SSLSocketFactory() {
private val protocols = arrayOf("TLSv1.2", "TLSv1.1")
override fun getDefaultCipherSuites(): Array<String> = internalSSLSocketFactory.defaultCipherSuites
override fun getSupportedCipherSuites(): Array<String> = internalSSLSocketFactory.supportedCipherSuites
override fun createSocket(s: Socket, host: String, port: Int, autoClose: Boolean) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(s, host, port, autoClose))
override fun createSocket(host: String, port: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))
override fun createSocket(host: String, port: Int, localHost: InetAddress, localPort: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port, localHost, localPort))
override fun createSocket(host: InetAddress, port: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(host, port))
override fun createSocket(address: InetAddress, port: Int, localAddress: InetAddress, localPort: Int) =
enableTLSOnSocket(internalSSLSocketFactory.createSocket(address, port, localAddress, localPort))
private fun enableTLSOnSocket(socket: Socket?) = socket?.apply {
if (this is SSLSocket && isTLSServerEnabled(this)) {
enabledProtocols = protocols
}
}
private fun isTLSServerEnabled(sslSocket: SSLSocket) = sslSocket.supportedProtocols.any { it in protocols }
}
Can be done using xp_DirTree, then looping through to generate a full file path if required.
Here is an extract of a script I use to restore databases to a test server automatically. It scans a folder and all subfolders for any backup files, then returns the full path.
DECLARE @BackupDirectory SYSNAME = @BackupFolder
IF OBJECT_ID('tempdb..#DirTree') IS NOT NULL
DROP TABLE #DirTree
CREATE TABLE #DirTree (
Id int identity(1,1),
SubDirectory nvarchar(255),
Depth smallint,
FileFlag bit,
ParentDirectoryID int
)
INSERT INTO #DirTree (SubDirectory, Depth, FileFlag)
EXEC master..xp_dirtree @BackupDirectory, 10, 1
UPDATE #DirTree
SET ParentDirectoryID = (
SELECT MAX(Id) FROM #DirTree d2
WHERE Depth = d.Depth - 1 AND d2.Id < d.Id
)
FROM #DirTree d
DECLARE
@ID INT,
@BackupFile VARCHAR(MAX),
@Depth TINYINT,
@FileFlag BIT,
@ParentDirectoryID INT,
@wkSubParentDirectoryID INT,
@wkSubDirectory VARCHAR(MAX)
DECLARE @BackupFiles TABLE
(
FileNamePath VARCHAR(MAX),
TransLogFlag BIT,
BackupFile VARCHAR(MAX),
DatabaseName VARCHAR(MAX)
)
DECLARE FileCursor CURSOR LOCAL FORWARD_ONLY FOR
SELECT * FROM #DirTree WHERE FileFlag = 1
OPEN FileCursor
FETCH NEXT FROM FileCursor INTO
@ID,
@BackupFile,
@Depth,
@FileFlag,
@ParentDirectoryID
SET @wkSubParentDirectoryID = @ParentDirectoryID
WHILE @@FETCH_STATUS = 0
BEGIN
--loop to generate path in reverse, starting with backup file then prefixing subfolders in a loop
WHILE @wkSubParentDirectoryID IS NOT NULL
BEGIN
SELECT @wkSubDirectory = SubDirectory, @wkSubParentDirectoryID = ParentDirectoryID
FROM #DirTree
WHERE ID = @wkSubParentDirectoryID
SELECT @BackupFile = @wkSubDirectory + '\' + @BackupFile
END
--no more subfolders in loop so now prefix the root backup folder
SELECT @BackupFile = @BackupDirectory + @BackupFile
--put backupfile into a table and then later work out which ones are log and full backups
INSERT INTO @BackupFiles (FileNamePath) VALUES(@BackupFile)
FETCH NEXT FROM FileCursor INTO
@ID,
@BackupFile,
@Depth,
@FileFlag,
@ParentDirectoryID
SET @wkSubParentDirectoryID = @ParentDirectoryID
END
CLOSE FileCursor
DEALLOCATE FileCursor
This solution works for me :
Tools -> AVD Manager -> click drop down arrow -> select Cold Boot Now
If you also get the key, you can delete that item like this:
foreach ($display_related_tags as $key => $tag_name) {
if($tag_name == $found_tag['name']) {
unset($display_related_tags[$key]);
}
}
I just started using STS Eclipse with first time using Maven. The project I setup already had its own settings.xml. If this is the case, you'll want to update your settings.xml file in run configuration.
right click the pom.xml and "Run As" -> "Run Configurations..."
where it says "User settings" click on the File button and add the settings.xml.
I think this is specific to your project but my "Goals" is set to "clean install" and I checked on "Skip Tests."
here is what we did, in our situation we need an ad hoc query to be executed using a date restriction on demand, and the query is defined in a table.
Our new query needs to match data between different databases and include data from both of them.
It seems that the COLLATION is different between the db that imports data from the iSeries/AS400 system, and our reporting database - this could be because of the specific data types (such as Greek accents on names and so on).
So we used the below join clause:
...LEFT Outer join ImportDB..C4CTP C4 on C4.C4CTP COLLATE Latin1_General_CS_AS=CUS_Type COLLATE Latin1_General_CS_AS
Inside of your loop, you have the key, which you can use to retrieve the value from the Map
:
for (String key: mss1.keySet()) {
System.out.println(key + ": " + mss1.get(key));
}
private void jTextField1KeyPressed(java.awt.event.KeyEvent evt)
{
if(jTextField1.getText().length()>=5)
{
jTextField1.setText(jTextField1.getText().substring(0, 4));
}
}
I have taken a jtextfield whose name is jTextField1, the code is in its key pressed event. I Have tested it and it works. And I am using the NetBeans IDE.
At last this post helps me on iOS: http://www.excellentwebworld.com/phonegap-open-a-link-in-safari-or-external-browser/.
Open "CDVwebviewDelegate.m" file and search "shouldStartLoadWithRequest", then add this code to the beginning of the function:
if([[NSString stringWithFormat:@"%@",request.URL] rangeOfString:@"file"].location== NSNotFound) { [[UIApplication sharedApplication] openURL:[request URL]]; return NO; }
While using navigator.app.loadUrl("http://google.com", {openExternal : true});
for Android is OK.
Via Cordova 3.3.0.
If you're using Python3, then install:
python3 -m pip install --user xlsxwriter
This will run pip with the appropriate version of Python3. If you run bare pip3 and have many versions of Python install, it will still fail leading to more confusion.
The --user flag will allow to install as a regular user and no require root.
Append a ?v=random_string to the url. If you are using this idea with Facebook share, make sure that the og:url param in the response matches the url you are sharing. This will work with google plus too.
For Facebook, you can also force recrawl by making a post request to https://graph.facebook.com
{id: url,
scrape: true}
I have been hunting around trying to solve this one for a while and none of the suggested updates to bash seemed to be working. What I discovered was that some point my npm root was modified such that it was pointing to a Users/USER_NAME/.node/node_modules
while the actual installation of npm was living at /usr/local/lib/node_modules
. You can check this by running npm root
and npm root -g
(for the global installation). To correct the path you can call npm config set prefix /usr/local
.
Java does both compilation and interpretation,
In Java, programs are not compiled into executable files; they are compiled into bytecode (as discussed earlier), which the JVM (Java Virtual Machine) then interprets / executes at runtime. Java source code is compiled into bytecode when we use the javac compiler. The bytecode gets saved on the disk with the file extension .class.
When the program is to be run, the bytecode is converted the bytecode may be converted, using the just-in-time (JIT) compiler. The result is machine code which is then fed to the memory and is executed.
Javac is the Java Compiler which Compiles Java code into Bytecode. JVM is Java Virtual Machine which Runs/ Interprets/ translates Bytecode into Native Machine Code. In Java though it is considered as an interpreted language, It may use JIT (Just-in-Time) compilation when the bytecode is in the JVM. The JIT compiler reads the bytecodes in many sections (or in full, rarely) and compiles them dynamically into machine code so the program can run faster, and then cached and reused later without needing to be recompiled. So JIT compilation combines the speed of compiled code with the flexibility of interpretation.
An interpreted language is a type of programming language for which most of its implementations execute instructions directly and freely, without previously compiling a program into machine-language instructions. The interpreter executes the program directly, translating each statement into a sequence of one or more subroutines already compiled into machine code.
A compiled language is a programming language whose implementations are typically compilers (translators that generate machine code from source code), and not interpreters (step-by-step executors of source code, where no pre-runtime translation takes place)
In modern programming language implementations like in Java, it is increasingly popular for a platform to provide both options.
The quick answer: switch off AutoSize.
The big problem here is that the label will not change its height automatically (only width). To get this right you will need to subclass the label and include vertical resize logic.
Basically what you need to do in OnPaint is:
You will also need to set the ResizeRedraw style flag in the constructor.
The EXCEL and OLED DB connection managers use the parameter names 0 and 1.
I was using a oledb connection and wasted couple of hours trying to figure out the reason why the query was not working or taking the parameters. the above explanation helped a lot Thanks a lot.
insert into OPT (email, campaign_id)
select '[email protected]',100
from dual
where not exists(select *
from OPT
where (email ='[email protected]' and campaign_id =100));
It turns out I was just missing DECIMAL
on the CAST()
description:
DECIMAL[(M[,D])]
Converts a value to DECIMAL data type. The optional arguments M and D specify the precision (M specifies the total number of digits) and the scale (D specifies the number of digits after the decimal point) of the decimal value. The default precision is two digits after the decimal point.
Thus, the following query worked:
UPDATE table SET
latitude = CAST(old_latitude AS DECIMAL(10,6)),
longitude = CAST(old_longitude AS DECIMAL(10,6));
With 4.0, you will need to manage this yourself by setting the culture for each thread as Alexei describes. But with 4.5, you can define a culture for the appdomain and that is the preferred way to handle this. The relevant apis are CultureInfo.DefaultThreadCurrentCulture and CultureInfo.DefaultThreadCurrentUICulture.
This looks like a good article on the subject: Taming the OOM killer.
The gist is that Linux overcommits memory. When a process asks for more space, Linux will give it that space, even if it is claimed by another process, under the assumption that nobody actually uses all of the memory they ask for. The process will get exclusive use of the memory it has allocated when it actually uses it, not when it asks for it. This makes allocation quick, and might allow you to "cheat" and allocate more memory than you really have. However, once processes start using this memory, Linux might realize that it has been too generous in allocating memory it doesn't have, and will have to kill off a process to free some up. The process to be killed is based on a score taking into account runtime (long-running processes are safer), memory usage (greedy processes are less safe), and a few other factors, including a value you can adjust to make a process less likely to be killed. It's all described in the article in a lot more detail.
Edit: And here is another article that explains pretty well how a process is chosen (annotated with some kernel code examples). The great thing about this is that it includes some commentary on the reasoning behind the various badness()
rules.
Check this: System.currentTimeMillis.
With this you can calculate the time of your method by doing:
long start = System.currentTimeMillis();
class.method();
long time = System.currentTimeMillis() - start;
The best thing to do is to use the algorithm remove_if
and isspace:
remove_if(str.begin(), str.end(), isspace);
Now the algorithm itself can't change the container(only modify the values), so it actually shuffles the values around and returns a pointer to where the end now should be. So we have to call string::erase to actually modify the length of the container:
str.erase(remove_if(str.begin(), str.end(), isspace), str.end());
We should also note that remove_if will make at most one copy of the data. Here is a sample implementation:
template<typename T, typename P>
T remove_if(T beg, T end, P pred)
{
T dest = beg;
for (T itr = beg;itr != end; ++itr)
if (!pred(*itr))
*(dest++) = *itr;
return dest;
}
jQuery has very limited array functions since JavaScript has most of them itself. But here are the ones they have: Utilities - jQuery API.
Note also that vertical-align:top;
is often necessary for correct table cell appearance.
This code works well for returning all of the IP addresses that might belong to a particular URI. Since many systems are now in a hosted environment (AWS/Akamai/etc.), systems may return several IP addresses. The lambda was "borrowed" from @Peter Silva.
def get_ips_by_dns_lookup(target, port=None):
'''
this function takes the passed target and optional port and does a dns
lookup. it returns the ips that it finds to the caller.
:param target: the URI that you'd like to get the ip address(es) for
:type target: string
:param port: which port do you want to do the lookup against?
:type port: integer
:returns ips: all of the discovered ips for the target
:rtype ips: list of strings
'''
import socket
if not port:
port = 443
return list(map(lambda x: x[4][0], socket.getaddrinfo('{}.'.format(target),port,type=socket.SOCK_STREAM)))
ips = get_ips_by_dns_lookup(target='google.com')
Better solution is to introduce another interface for async operations. New interface must inherit from original interface.
Example:
interface IIO
{
void DoOperation();
}
interface IIOAsync : IIO
{
Task DoOperationAsync();
}
class ClsAsync : IIOAsync
{
public void DoOperation()
{
DoOperationAsync().GetAwaiter().GetResult();
}
public async Task DoOperationAsync()
{
//just an async code demo
await Task.Delay(1000);
}
}
class Program
{
static void Main(string[] args)
{
IIOAsync asAsync = new ClsAsync();
IIO asSync = asAsync;
Console.WriteLine(DateTime.Now.Second);
asAsync.DoOperation();
Console.WriteLine("After call to sync func using Async iface: {0}",
DateTime.Now.Second);
asAsync.DoOperationAsync().GetAwaiter().GetResult();
Console.WriteLine("After call to async func using Async iface: {0}",
DateTime.Now.Second);
asSync.DoOperation();
Console.WriteLine("After call to sync func using Sync iface: {0}",
DateTime.Now.Second);
Console.ReadKey(true);
}
}
P.S. Redesign your async operations so they return Task instead of void, unless you really must return void.
I suggest using a directive on a link. Here is the fiddle.
But its not perfect yet. Watch out for the hashbangs ;)
Here is the javascript for directive:
angular.module('link', []).
directive('activeLink', ['$location', function(location) {
return {
restrict: 'A',
link: function(scope, element, attrs, controller) {
var clazz = attrs.activeLink;
var path = attrs.href;
path = path.substring(1); //hack because path does not return including hashbang
scope.location = location;
scope.$watch('location.path()', function(newPath) {
if (path === newPath) {
element.addClass(clazz);
} else {
element.removeClass(clazz);
}
});
}
};
}]);
and here is how it would be used in html:
<div ng-app="link">
<a href="#/one" active-link="active">One</a>
<a href="#/two" active-link="active">One</a>
<a href="#" active-link="active">home</a>
</div>
afterwards styling with css:
.active{ color:red; }
If you are struggling because of the rounded corners
vs. subviews
vs. masksToBounds
, then try using my function:
- (UIView*)putView:(UIView*)view insideShadowWithColor:(UIColor*)color andRadius:(CGFloat)shadowRadius andOffset:(CGSize)shadowOffset andOpacity:(CGFloat)shadowOpacity
{
CGRect shadowFrame; // Modify this if needed
shadowFrame.size.width = 0.f;
shadowFrame.size.height = 0.f;
shadowFrame.origin.x = 0.f;
shadowFrame.origin.y = 0.f;
UIView * shadow = [[UIView alloc] initWithFrame:shadowFrame];
shadow.userInteractionEnabled = NO; // Modify this if needed
shadow.layer.shadowColor = color.CGColor;
shadow.layer.shadowOffset = shadowOffset;
shadow.layer.shadowRadius = shadowRadius;
shadow.layer.masksToBounds = NO;
shadow.clipsToBounds = NO;
shadow.layer.shadowOpacity = shadowOpacity;
[view.superview insertSubview:shadow belowSubview:view];
[shadow addSubview:view];
return shadow;
}
call it on your view. whether your view has rounded corners, no matter its size, its shape - a nice shadow will be drawn.
Just keep the return value of the function so you can refer to it when you want to remove the table (or for example use insertSubview:aboveView:
)
While many people here say there is no best way for object creation, there is a rationale as to why there are so many ways to create objects in JavaScript, as of 2019, and this has to do with the progress of JavaScript over the different iterations of EcmaScript releases dating back to 1997.
Prior to ECMAScript 5, there were only two ways of creating objects: the constructor function or the literal notation ( a better alternative to new Object()). With the constructor function notation you create an object that can be instantiated into multiple instances (with the new keyword), while the literal notation delivers a single object, like a singleton.
// constructor function
function Person() {};
// literal notation
var Person = {};
Regardless of the method you use, JavaScript objects are simply properties of key value pairs:
// Method 1: dot notation
obj.firstName = 'Bob';
// Method 2: bracket notation. With bracket notation, you can use invalid characters for a javascript identifier.
obj['lastName'] = 'Smith';
// Method 3: Object.defineProperty
Object.defineProperty(obj, 'firstName', {
value: 'Bob',
writable: true,
configurable: true,
enumerable: false
})
// Method 4: Object.defineProperties
Object.defineProperties(obj, {
firstName: {
value: 'Bob',
writable: true
},
lastName: {
value: 'Smith',
writable: false
}
});
In early versions of JavaScript, the only real way to mimic class-based inheritance was to use constructor functions. the constructor function is a special function that is invoked with the 'new' keyword. By convention, the function identifier is capitalized, albiet it is not required. Inside of the constructor, we refer to the 'this' keyword to add properties to the object that the constructor function is implicitly creating. The constructor function implicitly returns the new object with the populated properties back to the calling function implicitly, unless you explicitly use the return keyword and return something else.
function Person(firstName, lastName) {
this.firstName = firstName;
this.lastName = lastName;
this.sayName = function(){
return "My name is " + this.firstName + " " + this.lastName;
}
}
var bob = new Person("Bob", "Smith");
bob instanceOf Person // true
There is a problem with the sayName method. Typically, in Object-Oriented Class-based programming languages, you use classes as factories to create objects. Each object will have its own instance variables, but it will have a pointer to the methods defined in the class blueprint. Unfortunately, when using JavaScript's constructor function, every time it is called, it will define a new sayName property on the newly created object. So each object will have its own unique sayName property. This will consume more memory resources.
In addition to increased memory resources, defining methods inside of the constructor function eliminates the possibility of inheritance. Again, the method will be defined as a property on the newly created object and no other object, so inheritance cannot work like. Hence, JavaScript provides the prototype chain as a form of inheritance, making JavaScript a prototypal language.
If you have a parent and a parent shares many properties of a child, then the child should inherit those properties. Prior to ES5, it was accomplished as follows:
function Parent(eyeColor, hairColor) {
this.eyeColor = eyeColor;
this.hairColor = hairColor;
}
Parent.prototype.getEyeColor = function() {
console.log('has ' + this.eyeColor);
}
Parent.prototype.getHairColor = function() {
console.log('has ' + this.hairColor);
}
function Child(firstName, lastName) {
Parent.call(this, arguments[2], arguments[3]);
this.firstName = firstName;
this.lastName = lastName;
}
Child.prototype = Parent.prototype;
var child = new Child('Bob', 'Smith', 'blue', 'blonde');
child.getEyeColor(); // has blue eyes
child.getHairColor(); // has blonde hair
The way we utilized the prototype chain above has a quirk. Since the prototype is a live link, by changing the property of one object in the prototype chain, you'd be changing same property of another object as well. Obviously, changing a child's inherited method should not change the parent's method. Object.create resolved this issue by using a polyfill. Thus, with Object.create, you can safely modify a child's property in the prototype chain without affecting the parent's same property in the prototype chain.
ECMAScript 5 introduced Object.create to solve the aforementioned bug in the constructor function for object creation. The Object.create() method CREATES a new object, using an existing object as the prototype of the newly created object. Since a new object is created, you no longer have the issue where modifying the child property in the prototype chain will modify the parent's reference to that property in the chain.
var bobSmith = {
firstName: "Bob",
lastName: "Smith",
sayName: function(){
return "My name is " + this.firstName + " " + this.lastName;
}
}
var janeSmith = Object.create(bobSmith, {
firstName : { value: "Jane" }
})
console.log(bobSmith.sayName()); // My name is Bob Smith
console.log(janeSmith.sayName()); // My name is Jane Smith
janeSmith.__proto__ == bobSmith; // true
janeSmith instanceof bobSmith; // Uncaught TypeError: Right-hand side of 'instanceof' is not callable. Error occurs because bobSmith is not a constructor function.
Prior to ES6, here was a common creational pattern to utilize function constructors and Object.create:
const View = function(element){
this.element = element;
}
View.prototype = {
getElement: function(){
this.element
}
}
const SubView = function(element){
View.call(this, element);
}
SubView.prototype = Object.create(View.prototype);
Now Object.create coupled with constructor functions have been widely used for object creation and inheritance in JavaScript. However, ES6 introduced the concept of classes, which are primarily syntactical sugar over JavaScript's existing prototype-based inheritance. The class syntax does not introduce a new object-oriented inheritance model to JavaScript. Thus, JavaScript remains a prototypal language.
ES6 classes make inheritance much easier. We no longer have to manually copy the parent class's prototype functions and reset the child class's constructor.
// create parent class
class Person {
constructor (name) {
this.name = name;
}
}
// create child class and extend our parent class
class Boy extends Person {
constructor (name, color) {
// invoke our parent constructor function passing in any required parameters
super(name);
this.favoriteColor = color;
}
}
const boy = new Boy('bob', 'blue')
boy.favoriteColor; // blue
All in all, these 5 different strategies of Object Creation in JavaScript coincided the evolution of the EcmaScript standard.
Mine did not start because the Server did not accept the 'Dedicated MySQL Server' setting in the Configuration.
If you wanted to quickly create a new object to hold some data about a book. You would do something like this:
$book = new stdClass;
$book->title = "Harry Potter and the Prisoner of Azkaban";
$book->author = "J. K. Rowling";
$book->publisher = "Arthur A. Levine Books";
$book->amazon_link = "http://www.amazon.com/dp/0439136369/";
Please check the site - http://www.webmaster-source.com/2009/08/20/php-stdclass-storing-data-object-instead-array/ for more details.
As @M.Deinum already wrote the answer.
I tried with api /api/v1/signup
. it will bypass the filter/custom filter but an additional request invoked by the browser for /favicon.ico
, so, I add this also in web.ignoring() and it works for me.
@Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/api/v1/signup", "/favicon.ico");
}
Maybe this is not required for the above question.
split with the + sign like this way
String a = tv.getText().toString();
String aa[];
if(a.contains("+"))
aa = a.split("+");
now convert the array
Integer.parseInt(aa[0]); // and so on
To understand the "encoding" attribute, you have to understand the difference between bytes and characters.
Think of bytes as numbers between 0 and 255, whereas characters are things like "a", "1" and "Ä". The set of all characters that are available is called a character set.
Each character has a sequence of one or more bytes that are used to represent it; however, the exact number and value of the bytes depends on the encoding used and there are many different encodings.
Most encodings are based on an old character set and encoding called ASCII which is a single byte per character (actually, only 7 bits) and contains 128 characters including a lot of the common characters used in US English.
For example, here are 6 characters in the ASCII character set that are represented by the values 60 to 65.
Extract of ASCII Table 60-65
+---------------------+
¦ Byte ¦ Character ¦
¦------+--------------¦
¦ 60 ¦ < ¦
¦ 61 ¦ = ¦
¦ 62 ¦ > ¦
¦ 63 ¦ ? ¦
¦ 64 ¦ @ ¦
¦ 65 ¦ A ¦
+---------------------+
In the full ASCII set, the lowest value used is zero and the highest is 127 (both of these are hidden control characters).
However, once you start needing more characters than the basic ASCII provides (for example, letters with accents, currency symbols, graphic symbols, etc.), ASCII is not suitable and you need something more extensive. You need more characters (a different character set) and you need a different encoding as 128 characters is not enough to fit all the characters in. Some encodings offer one byte (256 characters) or up to six bytes.
Over time a lot of encodings have been created. In the Windows world, there is CP1252, or ISO-8859-1, whereas Linux users tend to favour UTF-8. Java uses UTF-16 natively.
One sequence of byte values for a character in one encoding might stand for a completely different character in another encoding, or might even be invalid.
For example, in ISO 8859-1, â is represented by one byte of value 226
, whereas in UTF-8 it is two bytes: 195, 162
. However, in ISO 8859-1, 195, 162
would be two characters, Ã, ¢.
Think of XML as not a sequence of characters but a sequence of bytes.
Imagine the system receiving the XML sees the bytes 195, 162
. How does it know what characters these are?
In order for the system to interpret those bytes as actual characters (and so display them or convert them to another encoding), it needs to know the encoding used in the XML.
Since most common encodings are compatible with ASCII, as far as basic alphabetic characters and symbols go, in these cases, the declaration itself can get away with using only the ASCII characters to say what the encoding is. In other cases, the parser must try and figure out the encoding of the declaration. Since it knows the declaration begins with <?xml
it is a lot easier to do this.
Finally, the version
attribute specifies the XML version, of which there are two at the moment (see Wikipedia XML versions. There are slight differences between the versions, so an XML parser needs to know what it is dealing with. In most cases (for English speakers anyway), version 1.0 is sufficient.
Came from the future? Looking for the ajax source default value ?
// Set up the Select2 control
$('#mySelect2').select2({
ajax: {
url: '/api/students'
}
});
// Fetch the preselected item, and add to the control
var studentSelect = $('#mySelect2');
$.ajax({
type: 'GET',
url: '/api/students/s/' + studentId
}).then(function (data) {
// create the option and append to Select2
var option = new Option(data.full_name, data.id, true, true);
studentSelect.append(option).trigger('change');
// manually trigger the `select2:select` event
studentSelect.trigger({
type: 'select2:select',
params: {
data: data
}
});
});
You're welcome.
You can just as easily access each element in the list using e.g. path[[1]]
. You can't put a set of matrices into an atomic vector and access each element. A matrix is an atomic vector with dimension attributes. I would use the list structure returned by split
, it's what it was designed for. Each list element can hold data of different types and sizes so it's very versatile and you can use *apply
functions to further operate on each element in the list. Example below.
# For reproducibile data
set.seed(1)
# Make some data
userid <- rep(1:2,times=4)
data1 <- replicate(8 , paste( sample(letters , 3 ) , collapse = "" ) )
data2 <- sample(10,8)
df <- data.frame( userid , data1 , data2 )
# Split on userid
out <- split( df , f = df$userid )
#$`1`
# userid data1 data2
#1 1 gjn 3
#3 1 yqp 1
#5 1 rjs 6
#7 1 jtw 5
#$`2`
# userid data1 data2
#2 2 xfv 4
#4 2 bfe 10
#6 2 mrx 2
#8 2 fqd 9
Access each element using the [[
operator like this:
out[[1]]
# userid data1 data2
#1 1 gjn 3
#3 1 yqp 1
#5 1 rjs 6
#7 1 jtw 5
Or use an *apply
function to do further operations on each list element. For instance, to take the mean of the data2
column you could use sapply like this:
sapply( out , function(x) mean( x$data2 ) )
# 1 2
#3.75 6.25
You can get another validation on this tutorial : http://twitterbootstrap.org/bootstrap-form-validation
They use JQuery validation.
jquery.validate.js
jquery.validate.min.js
jquery-1.7.1.min.js
And you'll get the source code there.
<form id="registration-form" class="form-horizontal">
<h2>Sample Registration form <small>(Fill up the forms to get register)</small></h2>
<div class="form-control-group">
<label class="control-label" for="name">Your Name</label>
<div class="controls">
<input type="text" class="input-xlarge" name="name" id="name"></div>
</div>
<div class="form-control-group">
<label class="control-label" for="name">User Name</label>
<div class="controls">
<input type="text" class="input-xlarge" name="username" id="username"></div>
</div>
<div class="form-control-group">
<label class="control-label" for="name">Password</label>
<div class="controls">
<input type="password" class="input-xlarge" name="password" id="password">
</div>
</div>
<div class="form-control-group">
<label class="control-label" for="name"> Retype Password</label>
<div class="controls">
<input type="password" class="input-xlarge" name="confirm_password" id="confirm_password"></div>
</div>
<div class="form-control-group">
<label class="control-label" for="email">Email Address</label>
<div class="controls">
<input type="text" class="input-xlarge" name="email" id="email"></div>
</div>
<div class="form-control-group">
<label class="control-label" for="message">Your Address</label>
<div class="controls">
<textarea class="input-xlarge" name="address" id="address" rows="3"></textarea></div>
</div>
<div class="form-control-group">
<label class="control-label" for="message"> Please agree to our policy</label>
<div class="controls">
<input id="agree" class="checkbox" type="checkbox" name="agree"></div>
</div>
<div class="form-actions">
<button type="submit" class="btn btn-success btn-large">Register</button>
<button type="reset" class="btn">Cancel</button></div>
</form>
And The JQuery :
<script src="assets/js/jquery-1.7.1.min.js"></script>
<script src="assets/js/jquery.validate.js"></script>
<script src="script.js"></script>
<script>
addEventListener('load', prettyPrint, false);
$(document).ready(function(){
$('pre').addClass('prettyprint linenums');
});
Here is the live example of the code: http://twitterbootstrap.org/live/bootstrap-form-validation/
Check the full tutorial: http://twitterbootstrap.org/bootstrap-form-validation/
happy coding.
Expanding on @Avenir Çokaj's answer
Being a novice even I did not understand the error message clearly at first.
What the error message indicates is that in your formGroup you have an element that doesn't get accounted for in your formControl. (Intentionally/Accidentally)
If you intend on not validating this field but still want to use the ngModel on this input element please add the flag to indicate it's a standalone component without a need for validation as mentioned by @Avenir above.
In case of a list of dictionaries, the full list comprehension solution works while the set
solution raises
TypeError: unhashable type: 'dict'
def diff(a, b):
return [aa for aa in a if aa not in b]
d1 = {"a":1, "b":1}
d2 = {"a":2, "b":2}
d3 = {"a":3, "b":3}
>>> diff([d1, d2, d3], [d2, d3])
[{'a': 1, 'b': 1}]
>>> diff([d1, d2, d3], [d1])
[{'a': 2, 'b': 2}, {'a': 3, 'b': 3}]
You can use tf.convert_to_tensor()
:
import tensorflow as tf
import numpy as np
data = [[1,2,3],[4,5,6]]
data_np = np.asarray(data, np.float32)
data_tf = tf.convert_to_tensor(data_np, np.float32)
sess = tf.InteractiveSession()
print(data_tf.eval())
sess.close()
Here's a link to the documentation for this method:
https://www.tensorflow.org/api_docs/python/tf/convert_to_tensor
for example
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.SwingUtilities;
public class ComboboxExample {
private JFrame frame = new JFrame("Test");
private JComboBox comboBox = new JComboBox();
public ComboboxExample() {
createGui();
}
private void createGui() {
comboBox.addItem("One");
comboBox.addItem("Two");
comboBox.addItem("Three");
JButton button = new JButton("Show Selected");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(frame, "Selected item: " + comboBox.getSelectedItem());
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.requestFocus();
comboBox.requestFocusInWindow();
}
});
}
});
JButton button1 = new JButton("Append Items");
button1.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
appendCbItem();
}
});
JButton button2 = new JButton("Reduce Items");
button2.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
reduceCbItem();
}
});
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new GridLayout(4, 1));
frame.add(comboBox);
frame.add(button);
frame.add(button1);
frame.add(button2);
frame.setLocation(200, 200);
frame.pack();
frame.setVisible(true);
selectFirstItem();
}
public void appendCbItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.addItem("Four");
comboBox.addItem("Five");
comboBox.addItem("Six");
comboBox.setSelectedItem("Six");
requestCbFocus();
}
});
}
public void reduceCbItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.removeItem("Four");
comboBox.removeItem("Five");
comboBox.removeItem("Six");
selectFirstItem();
}
});
}
public void selectFirstItem() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.setSelectedIndex(0);
requestCbFocus();
}
});
}
public void requestCbFocus() {
javax.swing.SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
comboBox.requestFocus();
comboBox.requestFocusInWindow();
}
});
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
ComboboxExample comboboxExample = new ComboboxExample();
}
});
}
}
Dim numberOfButtons As Integer
Dim buttons() as Button
Private Sub MyForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Redim buttons(numberOfbuttons)
for counter as integer = 0 to numberOfbuttons
With buttons(counter)
.Size = (10, 10)
.Visible = False
.Location = (55, 33 + counter*13)
.Text = "Button "+(counter+1).ToString ' or some name from an array you pass from main
'any other property
End With
'
next
End Sub
If you want to check which of the textboxes have information, or which radio button was clicked, you can iterate through a loop in an OK button.
If you want to be able to click individual array items and have them respond to events, add in the Form_load loop the following:
AddHandler buttons(counter).Clicked AddressOf All_Buttons_Clicked
then create
Private Sub All_Buttons_Clicked(ByVal sender As System.Object, ByVal e As System.EventArgs)
'some code here, can check to see which checkbox was changed, which button was clicked, by number or text
End Sub
when you call: objectYouCall.numberOfButtons = initial_value_from_main_program
response_yes_or_no_or_other = objectYouCall.ShowDialog()
For radio buttons, textboxes, same story, different ending.
I don't think that it's possible for instance members to be removed before __del__
is called. My guess would be that the reason for your particular AttributeError is somewhere else (maybe you mistakenly remove self.file elsewhere).
However, as the others pointed out, you should avoid using __del__
. The main reason for this is that instances with __del__
will not be garbage collected (they will only be freed when their refcount reaches 0). Therefore, if your instances are involved in circular references, they will live in memory for as long as the application run. (I may be mistaken about all this though, I'd have to read the gc docs again, but I'm rather sure it works like this).
A somewhat different approach using ggplot2:
dat <- read.table(text = "A B C D E F G
1 480 780 431 295 670 360 190
2 720 350 377 255 340 615 345
3 460 480 179 560 60 735 1260
4 220 240 876 789 820 100 75", header = TRUE)
library(reshape2)
dat$row <- seq_len(nrow(dat))
dat2 <- melt(dat, id.vars = "row")
library(ggplot2)
ggplot(dat2, aes(x = variable, y = value, fill = row)) +
geom_bar(stat = "identity") +
xlab("\nType") +
ylab("Time\n") +
guides(fill = FALSE) +
theme_bw()
this gives:
When you want to include a legend, delete the guides(fill = FALSE)
line.
.png files are nice, but .ico files provide alpha-channel transparency, too, plus they give you backwards compatibility.
Have a look at which type StackOverflow uses for example (note that it's transparent):
<link rel="shortcut icon" href="http://sstatic.net/so/favicon.ico">
<link rel="apple-touch-icon" href="http://sstatic.net/so/apple-touch-icon.png">
The apple-itouch thingy is for iphone users that make a shortcut to a website.
This is probably what you want:
using System.Security.Principal;
using(WindowsIdentity.GetCurrent().Impersonate())
{
//your code goes here
}
But I really need more details to help you out. You could do impersonation with a config file (if you're trying to do this on a website), or through method decorators (attributes) if it's a WCF service, or through... you get the idea.
Also, if we're talking about impersonating a client that called a particular service (or web app), you need to configure the client correctly so that it passes the appropriate tokens.
Finally, if what you really want do is Delegation, you also need to setup AD correctly so that users and machines are trusted for delegation.
Edit:
Take a look here to see how to impersonate a different user, and for further documentation.
Not with CSS directly, you could set CSS properties via JavaScript based on the internal contents but in the end you would still need to be operating in the definitions of CSS.
if (comboBox1.SelectedIndex == -1)
{
//Done
}
It Works,, Try it
The OA can also be implemented in ES6 as follows
ES6:
const filtered = [1, 2, 3, 4].filter(e => {
return this.indexOf(e) < 0;
},[2, 4]);
Similar to Julien's answer above, I had success with the following:
fig, ax = plt.subplots(figsize=(10,4))
for key, grp in df.groupby(['ticker']):
ax.plot(grp['Date'], grp['adj_close'], label=key)
ax.legend()
plt.show()
This solution might be more relevant if you want more control in matlab.
Solution inspired by: https://stackoverflow.com/a/52526454/10521959
$query= $this->m_general->get('users' , array('id'=> $id ));
echo $query[''];
is ok ;)
Here is a simple answer using pandas
.
import pandas as pd
list1 = ['foo', 'fob', 'faz', 'funk']
string = 'bar'
list2 = (pd.Series(list1) + string).tolist()
list2
# ['foobar', 'fobbar', 'fazbar', 'funkbar']
Here's another way to do this:
- name: my command
command: echo stuff
when: "'groupname' not in group_names"
group_names
is a magic variable as documented here: https://docs.ansible.com/ansible/latest/user_guide/playbooks_variables.html#accessing-information-about-other-hosts-with-magic-variables :
group_names is a list (array) of all the groups the current host is in.
I had the same problem 2 years ago and I solved it in the following way:
1) I build my projects with makefiles, not managed by eclipse 2) I use a SAMBA connection to edit the files inside Eclipse 3) Building the project: Eclipse calles a "local" make with a makefile which opens a SSH connection to the Linux Host. On the SSH command line you can give parameters which are executed on the Linux host. I use for that parameter a makeit.sh shell script which call the "real" make on the linux host. The different targets for building you can give also by parameters from the local makefile --> makeit.sh --> makefile on linux host.
Xcode 10.2.1 was not recognizing my ipad mini. I unplugged and rebooted the mini and it became visible.
Say your list has 100 elements and you want to pick 50 of them in a random way. Here are the steps to follow:
Code:
from random import seed
from random import choice
seed(2)
numbers = [i for i in range(100)]
print(numbers)
for _ in range(50):
selection = choice(numbers)
print(selection)
The curl installed by default in Debian supports HTTPS since a great while back. (a long time ago there were two separate packages, one with and one without SSL but that's not the case anymore)
You can send an OPTIONS request with curl like this:
curl -i -X OPTIONS http://example.org/path
You may also use -v
instead of -i
to see more output.
To send a plain * (instead of the path, see RFC 7231) with the OPTIONS method, you need curl 7.55.0 or later as then you can run a command line like:
curl -i --request-target "*" -X OPTIONS http://example.org
<EditText android:imeOptions="actionDone"
android:inputType="text"/>
The Java code is:
edittext.setOnEditorActionListener(new OnEditorActionListener() {
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
Log.i(TAG,"Here you can write the code");
return true;
}
return false;
}
});
I know "for" is not what you want, but it's simple and clear:
for x in b:
a.remove(x)
Or if members of b
might not be in a
then use:
for x in b:
if x in a:
a.remove(x)
Use the awesome "Universal ADB (Android Debug Bridge) Driver for Windows": https://plus.google.com/103583939320326217147/posts/BQ5iYJEaaEH https://github.com/koush/UniversalAdbDriver
Tested under Win8.1.1 x64.
A good way to do it is this:
span + span {
margin-left: 10px;
}
Every span
preceded by a span
(so, every span
except the first) will have margin-left: 10px
.
Here's a more detailed answer to a similar question: Separators between elements without hacks
I too have struggled with this new pagespeed metric.
Although I have found no practical way to get my score back up to %100 there are a few things I have found helpful.
Combining all css into one file helped a lot. All my sites are back up to %95 - %98.
The only other thing I could think of was to inline all the necessary css (which appears to be most of it - at least for my pages) on the first page to get the sweet high score. Although it may help your speed score this will probably make your page load slower though.
This was a lot easier to do if all you want to do is find a string in an array.
$array = ["they has mystring in it", "some", "other", "elements"];
if (stripos(json_encode($array),'mystring') !== false) {
echo "found mystring";
}
numbers = [1, 2, 3]
numsum = sum(list(numbers))
print(numsum)
This would work, if your are trying to Sum up a list.
Also, does Jenkins delete the artifacts after each build ? (not the archived artifacts, I know I can tell it to delete those)
No, Hudson/Jenkins does not, by itself, clear the workspace after a build. You might have actions in your build process that erase, overwrite, or move build artifacts from where you left them. There is an option in the job configuration, in Advanced Project Options (which must be expanded), called "Clean workspace before build" that will wipe the workspace at the beginning of a new build.
This is a function to directly convert hexadecimal containing char array to an integer which needs no extra library:
int hexadecimal2int(char *hdec) {
int finalval = 0;
while (*hdec) {
int onebyte = *hdec++;
if (onebyte >= '0' && onebyte <= '9'){onebyte = onebyte - '0';}
else if (onebyte >= 'a' && onebyte <='f') {onebyte = onebyte - 'a' + 10;}
else if (onebyte >= 'A' && onebyte <='F') {onebyte = onebyte - 'A' + 10;}
finalval = (finalval << 4) | (onebyte & 0xF);
}
finalval = finalval - 524288;
return finalval;
}
To add to the response from @Anish, if you are having issues with not seeing the text when exporting the SVG to an image, you can create a recursive function to loop through the children of the SVGDocument, try to cast it to a SvgText if possible (add your own error checking) and set the font family and style.
foreach(var child in svgDocument.Children)
{
SetFont(child);
}
public void SetFont(SvgElement element)
{
foreach(var child in element.Children)
{
SetFont(child); //Call this function again with the child, this will loop
//until the element has no more children
}
try
{
var svgText = (SvgText)parent; //try to cast the element as a SvgText
//if it succeeds you can modify the font
svgText.Font = new Font("Arial", 12.0f);
svgText.FontSize = new SvgUnit(12.0f);
}
catch
{
}
}
Let me know if there are questions.
touch .keep
On Linux, this creates an empty file named .keep
. For what it's worth, this name is agnostic to Git. Secondly, as another user has noted, the .git
prefix convention can be reserved for files and directories that Git itself uses for configuration purposes.
Alternatively, as noted in another answer, the directory can contain a descriptive README.md
file instead.
Either way this requires that the presence of the file won't cause your application to break.
length
and dbms_lob.getlength
return the number of characters when applied to a CLOB (Character LOB). When applied to a BLOB (Binary LOB), dbms_lob.getlength
will return the number of bytes, which may differ from the number of characters in a multi-byte character set.
As the documentation doesn't specify what happens when you apply length
on a BLOB, I would advise against using it in that case. If you want the number of bytes in a BLOB, use dbms_lob.getlength
.
From your question it seems like you are using C99, as you have used %lf
for double.
To achieve the desired output replace:
sprintf(aa, "%lf", a);
with
sprintf(aa, "%0.7f", a);
The general syntax "%A.B"
means to use B digits after decimal point. The meaning of the A
is more complicated, but can be read about here.
It could be quotes themselves that are the entire problem. I had a similar problem and it was due to quotes around the column name in the CREATE TABLE statement. Note there were no whitespace issues, just quotes causing problems.
The column looked like it was called anID
but was really called "anID"
. The quotes don't appear in typical queries so it was hard to detect (for this postgres rookie). This is on postgres 9.4.1
Some more detail:
Doing postgres=# SELECT * FROM test;
gave:
anID | value
------+-------
1 | hello
2 | baz
3 | foo (3 rows)
but trying to select just the first column SELECT anID FROM test;
resulted in an error:
ERROR: column "anid" does not exist
LINE 1: SELECT anID FROM test;
^
Just looking at the column names didn't help:
postgres=# \d test;
Table "public.test"
Column | Type | Modifiers
--------+-------------------+-----------
anID | integer | not null
value | character varying |
Indexes:
"PK on ID" PRIMARY KEY, btree ("anID")
but in pgAdmin if you click on the column name and look in the SQL pane it populated with:
ALTER TABLE test ADD COLUMN "anID" integer;
ALTER TABLE test ALTER COLUMN "anID" SET NOT NULL;
and lo and behold there are the quoutes around the column name. So then ultimately postgres=# select "anID" FROM test;
works fine:
anID
------
1
2
3
(3 rows)
Same moral, don't use quotes.
First save your program as program.c
.
Now you need the compiler, so you need to go to App Store and install Xcode which is Apple's compiler and development tools. How to find App Store? Do a "Spotlight Search" by typing ⌘Space and start typing App Store
and hit Enter when it guesses correctly.
App Store looks like this:
Xcode looks like this on App Store:
Then you need to install the command-line tools in Terminal. How to start Terminal? You need to do another "Spotlight Search", which means you type ⌘Space and start typing Terminal
and hit Enter when it guesses Terminal
.
Now install the command-line tools like this:
xcode-select --install
Then you can compile your code with by simply running gcc
as in the next line without having to fire up the big, ugly software development GUI called Xcode
:
gcc -Wall -o program program.c
Note: On newer versions of OS X, you would use clang
instead of gcc
, like this:
clang program.c -o program
Then you can run it with:
./program
Hello, world!
If your program is C++, you'll probably want to use one of these commands:
clang++ -o program program.cpp
g++ -std=c++11 -o program program.cpp
g++-7 -std=c++11 -o program program.cpp
If you are trying to serve an HTML file which ALREADY has all it's content inside it, then it does not need to be 'rendered', it just needs to be 'served'. Rendering is when you have the server update or inject content before the page is sent to the browser, and it requires additional dependencies like ejs, as the other answers show.
If you simply want to direct the browser to a file based on their request, you should use res.sendFile() like this:
const express = require('express');
const app = express();
var port = process.env.PORT || 3000; //Whichever port you want to run on
app.use(express.static('./folder_with_html')); //This ensures local references to cs and js files work
app.get('/', (req, res) => {
res.sendFile(__dirname + '/folder_with_html/index.html');
});
app.listen(port, () => console.log("lifted app; listening on port " + port));
This way you don't need additional dependencies besides express. If you just want to have the server send your already created html files, the above is a very lightweight way to do so.